EP3204229A2 - Verfahren zum anpassen eines druckbildes oder eines zylinderaufzugs an eine bedruckstoffänderung in einer druckmaschine - Google Patents
Verfahren zum anpassen eines druckbildes oder eines zylinderaufzugs an eine bedruckstoffänderung in einer druckmaschineInfo
- Publication number
- EP3204229A2 EP3204229A2 EP16709056.2A EP16709056A EP3204229A2 EP 3204229 A2 EP3204229 A2 EP 3204229A2 EP 16709056 A EP16709056 A EP 16709056A EP 3204229 A2 EP3204229 A2 EP 3204229A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- printing
- elevator
- clamping
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/10—Forme cylinders
- B41F13/12—Registering devices
- B41F13/16—Registering devices with means for displacing the printing formes on the cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
- B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
- B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0009—Central control units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
- B41P2227/40—Adjusting means for printing plates on the cylinder
Definitions
- the invention relates to methods for adapting at least one printed image and / or at least one cylinder elevator to a change of substrate in a printing press. This process is carried out in a printing machine.
- the printing material is provided within a printing operation in printing units of the printing press with a printed image, such that a spanned on a printing form cylinder printing plate is colored and transfer the resulting print image on the guided on a printing cylinder substrate while the printed image resulting from the current printing process resulting strains of the substrate is adjusted.
- the printing material is printed successively, for example, by a plurality of printing units and / or coating units.
- the printing material is printed successively, for example, by a plurality of printing units and / or coating units.
- the printing material is printed successively, for example, by a plurality of printing units and / or coating units.
- the printing material is printed successively, for example, by a rolling out of the substrate in cylinder gaps and / or by a swelling of the substrate by liquids, such as constituents of printing inks and / or dampening solution to a deformation of the substrate.
- This may result in a deviation between the layers related to the substrate, at which the individual processing steps act on the substrate.
- register errors and / or registration errors can result.
- register An exact match of a print image on the front and back of a printed substrate printed on both sides is called register (DIN 16500-2).
- Multi-color printing is referred to as the Passer (DIN 16500- 2), when individual print images of different colors are combined to fit exactly one image.
- the equivalent of the Passer is also the expression of the Color register used.
- coating material for example printing ink
- a forme cylinder is transferred from a transfer cylinder and from the transfer cylinder to a printing material held by an impression cylinder.
- the geometric dimensions of the printed sheet change as a result of the printing ink and / or dampening solution and the pressure in the printing gap.
- the printing sheet is, for example, based on a transport direction of the printing substrate and / or a circumferential direction of the impression cylinder longer and / or initially at its trailing end in a transverse to the transport direction of the substrate oriented transverse direction and / or an axial direction of the impression cylinder wider.
- the printing press consists of several printing units, this is done more or less pronounced, for example, in each printing unit, so that a printed image printed by subsequent printing units in the circumferential direction deforms, in particular shorter and / or appears narrower compared to the previously printed images.
- This effect can be designed differently for each of the printing units, for example, which results in a high probability of register errors and / or register errors.
- Clamping device are arranged, wherein the rear clamping device is part of at least one carriage, by means of at least one tensioning drive within the at least one channel along a clamping path on the at least one front clamping device is arranged to be movable, wherein in a first clamping step, at least one, mounted in a fixed relative to the cylindrical ball bearing, rear stop actuator is moved relative to the cylindrical bale in a Anschlagagsolllage and then wherein the at least one carriage by means of at least one clamping drive together with the in the at least one rear clamping device clamped rear end of the printing forme on the at least one front clamping device and the first channel wall is moved until at least one stop body touches the at least one rear stop actuator and then wherein a fixing device is clamped and the at least one carriage in its position holds.
- Pressure plate end clamping rail is divided into clamping segments.
- the clamping segments are displaced outwards.
- a cylinder lift manipulation device which allows an automatic correction of geometrical deviations in the printed image. This is done by an image inspection device for geometric
- Measurement of printed substrates is used, which is in connection with the machine control of the printing press.
- the printing press has a computer that processes the measurement results of the image inspection device and is able to perform a sol-stwert comparison. If deviations are detected, actuators are activated so that the deviations detected can be minimized. In this case, a plurality of actuators are arranged on the cylinder, so that the cylinder elevator over the entire print image can be selectively deformed. These actuators are partially driven electrically and may have rotary electric motors. Actuators are also proposed which
- Piezoelectric drives electromagnetic linear actuators or electrical
- actuators At least partially work pneumatically.
- Sheet-fed printing machines known, in particular for the circumferential, lateral, Engerdruck-, Schurtik- and / or diagonal register adjustment, wherein the respective register is optically detected by machine on the substrate and the detection result is used for automatic automatic register adjustment.
- the respective register is optically detected by machine on the substrate and the detection result is used for automatic automatic register adjustment.
- a clamping and clamping device for printing machines with which a clamped on a cylinder at one end pressure plate is clamped at the other end by two strips and tensioned by a clamping element, wherein a clamping bar and a terminal block in the radial Having oppositely disposed clamping surfaces for detecting an angled pressure plate, wherein the clamping bar is designed as a pivotable double lever, wherein by means of at least one actuating element, the clamping bar is pivotable against the force of acting in the clamping direction tension springs, wherein the terminal block is formed as a pivotable connected to the clamping bar double lever which presses by clamping springs, the clamping surface against the corresponding clamping surface of the clamping bar with the clamping force for holding the pressure plate and wherein the terminal block a
- Holding member which cooperates with a fixed stop such that the clamping bar is pivoted upon actuation of the adjusting elements against the force of the clamping springs, wherein in a machine with multiple printing units, the force of the tension springs of a printing unit in comparison to the force of the tension springs of the subsequent printing unit preferably modified so that the printing plates have a difference in length caused by stretching
- Length difference of the substrate corresponds.
- EP 1 644 192 B1 discloses a method for influencing the fan-out effect by means of a device for influencing the fan-out effect and for influencing the side register by means of a side register control / regulation, wherein the influencing of the fan-out effect Effect, first the image of a sensor is evaluated, which detects the print image on a scan width of at least one quarter of the web width, and in deviation from a setpoint input to an actuator for
- a control command is transmitted, wherein for determining the fan-out pixels of two printed image sections of a color separation of a particular color with respect. Their axial position with a reference position, in particular with a reference relative position, are compared for the pixels of the two print image sections wherein the position of defined pixels or image areas of the color separation of this color from image data of the prepress stage is used as the reference position, and in order to correct the fan-out effect and to correct the page register, reference is made to measured values of the same sensor.
- EP 0 812 683 A1 discloses a sheet-fed printing machine in which forme cylinders have their own individual drives which are mechanically decoupled from a main drive. Its speed is tracked, for example, a speed of a main drive of the sheet-fed press.
- Circumferential speed of the substrate is made specifically and thus, for example, a printed image selectively extended or shortened transmitted.
- a speed ratio between a forme cylinder and an associated Counter-pressure cylinder varies, for example cyclically.
- the post-published WO 2015/040136 A2 a method for adjusting a cylinder elevator to a substrate change in printing machines is known, wherein the printing machine has at least two printing units and the substrate is provided within a printing operation in the printing units with a printed image, such that one on a Printing form cylinder spanned printing form is dyed and transferred to the resulting print image on the guided on a cylinder substrate while the print image is adapted to the current printing process resulting expansions of the substrate, wherein the adaptation of the cylinder elevator to the substrate under contact with the surface at least one
- Rotation body takes place.
- the impression cylinder For example, an angular velocity of a forme cylinder with respect to an angular velocity of a transfer cylinder or at least one impression cylinder is reduced, as long as a cylinder lift of the forme cylinder is in contact with the transfer cylinder and / or as long as the
- Transfer cylinder is in contact with the substrate.
- a printed image is shown elongated on the substrate, for example, to counteract an elongation of the already applied to the substrate printed image by preceding cylinder column.
- the angular velocity of this forme cylinder is preferably increased to compensate for the angular velocity of the transfer cylinder or at least the impression cylinder, as long as the cylinder lift this Form cylinder on the basis of a cylinder channel of the forme cylinder and / or a
- Cylinder channels of the transfer cylinder is not in contact with the transfer cylinder and / or as long as the transfer cylinder due to the cylinder channel of the transfer cylinder and / or the position or shape of the impression cylinder is not in contact with the substrate.
- the relative angular position of the two cylinders is preferably identical again.
- one complete revolution of the forme cylinder may result in a multiple cycle of increased and reduced angular velocities, and thus a multiple capture of the original relative angular position.
- Transfer cylinder on the other hand or a transfer cylinder on the one hand and a counter-pressure cylinder on the other hand it is necessary in any case that two directly adjacent cylinders rotate at times different angular velocities and different peripheral speeds.
- Such adjacent cylinders usually have defined rolling surfaces, each rolling on each other and by a constant position of the axes of rotation of these cylinders is ensured to each other, especially in those situations in which a channel of one of these cylinders opposite to a lateral surface or a channel of another of these cylinders , As a result, vibrations are to be prevented by sudden force changes that would occur without these rolling surfaces at the beginning and at the end of a channel.
- bearer rings are used as these rolling surfaces. With changes in the speed ratio and thus mutually variable peripheral velocities but no more unrolling, but also one sliding contact between these rolling surfaces.
- the object of the invention is therefore to provide a method for adjusting at least one
- Print image and / or at least one cylinder elevator to create a substrate change in a printing press Print image and / or at least one cylinder elevator to create a substrate change in a printing press.
- An advantage achievable with the invention is that several cylinder lifts are adjusted relative to one another, in particular if at least one of the
- Cylinder lifts can not be upset in the circumferential direction of the printing forme cylinder carrying it.
- Fig. 1 is a schematic representation of several printing units of a
- FIG. 2 shows a schematic representation of a section through a forme cylinder with a clamping device arranged in a channel
- Fig. 3 is a schematic representation of a plan view of a channel of a
- Form cylinder with a arranged in the channel clamping device a schematic representation of a section through a channel of a
- Form cylinder with another arranged in the channel clamping device a schematic representation of a section through a channel of a
- Form cylinder with another arranged in the channel clamping device; a sheet with a trained or at least
- Fig. 7 is a tensioning device disposed in the channel at a position; a partial section of forcibly guided by a guide rail
- FIG. 10 shows a partial section of the forme cylinder with the tensioning device arranged in the channel in self-locking; a simplified block diagram for the generation of correction values.
- An arcuate substrate processing machine in particular a
- Sheet processing machine preferably has a substrate feeder, for example, referred to as a sheet feeder, and / or preferably a contact device, for example, referred to as a sheet feeder, and / or preferably a substrate dispenser, for example a sheet feeder.
- the processing machine preferably has at least one processing stage, also referred to as a work, and more preferably several processing stages, also referred to as works. For example this is at least one work between the substrate supply device and the
- Substrate dispensing device arranged.
- this is at least one work as a printing group 01; 02; 03, coating unit, drying plant, calendering or film transfer plant or formed in another suitable manner.
- Sheet processing machine in particular sheet-fed printing machine described.
- the invention can be applied to other sheet processing machines which have a plurality of cylinders 07, preferably forme cylinders 07, in particular forme cylinders 07, each equipped with at least one cylinder lift 08 and / or can be loaded.
- cylinders 07 preferably forme cylinders 07, in particular forme cylinders 07, each equipped with at least one cylinder lift 08 and / or can be loaded.
- plates in particular printing plates trained
- Cylinder lifts 08 are such form cylinder 07 preferably designed as a plate cylinder 07. At least one of the works is preferably used as printing unit 01; 02; 03, in particular offset printing unit 01, 02, 03 formed. Alternatively or additionally, at least one coating unit or several coating units can be arranged downstream. In the case of several printing units 01; 02; 03 may also be provided the arrangement of one or more coating units between the printing units.
- the cylinder lift 08 is for example a printing plate 08 or a paint plate 08 or a paint cloth 08.
- the cylinder lift 08 may also have the shape of a sleeve, so be closed in the circumferential direction B.
- the sheet processing machine shown by way of example in FIG. 1, in particular sheet-fed printing machine, preferably has a plurality of works arranged in particular in series, in particular printing units 01; 02; 03 on.
- Each of these works, in particular printing units 01; 02; 03 preferably has at least one substrate-guiding cylinder 04, preferably as a cylinder 04, in particular as a printing material-carrying cylinder
- Each of these works, in particular printing units 01; 02; 03 further preferably also has at least one sheet transport device 05, which is preferably designed as a transfer drum 05 and more preferably as a transfer drum 05.
- the at least one sheet transport device 05 is designed as a transport cylinder and / or as a swing gripper.
- the at least one sheet transport device 05 is designed as a transport cylinder and / or as a swing gripper.
- Sheet transport device 05 at least one sheet holding member and more preferably a plurality of sheet holding elements.
- the at least one sheet-holding element is preferably designed as at least one gripper and / or at least one sucker.
- each of the impression cylinder 04 is at least one and preferably exactly one z.
- Each work preferably has at least one and more preferably exactly one cylinder 07 designed as a forme cylinder 07.
- the at least one forme cylinder 07 is designed as a plate cylinder 07, in particular as a plate cylinder 07.
- the forme cylinder 07 is in particular preferably in contact with the transfer cylinder 06 during a printing operation.
- other methods are also conceivable in which the forme cylinder 07 comes into direct contact with the substrate, for example in a flexographic printing process and / or in an embossing process and / or in a perforating process and / or in a stamping process and / or in a corresponding painting process.
- At least one inking unit 09 is provided, which serves in particular to color at least one cylinder elevator 08 arranged on the forme cylinder 07.
- the at least one inking unit 09 preferably has at least one and more preferably a plurality of inking unit rollers 1 1 and at least one and preferably a plurality of in contact with and / or engageable with the respective cylinder elevator 08
- a dampening unit 12 is associated with the forme cylinder 07, which preferably has at least one dampening roller 13,
- dampening rollers 13 for example, several dampening rollers 13.
- the at least one cylinder elevator 08 is designed as a printing forme 08, in particular as a printing plate 08.
- Shaping cylinder 07 preferably has at least one cylinder recess 14, which is designed, for example, as a cylinder channel 14 and / or as a clamping channel 14
- At least one fastening device 15 is arranged within this at least one cylinder recess 14.
- the at least one fastening device 15 is arranged within this at least one cylinder recess 14.
- Fastening device 15 is for example as a holding device and / or as
- the at least one fastening device 15 preferably serves at least to hold the at least one cylinder elevator 08 on the lateral surface of the relevant forme cylinder 07.
- the at least one fastening device 15 is at least designed as a tensioning device 15, this preferably also serves to tension the at least one cylinder elevator 08 on the relevant forme cylinder 07th
- the at least one fastening device 15 preferably has at least one front fastening means 16.
- the at least one front fastening means 16 preferably serves for securing an end leading at least in a printing operation
- this is at least one front
- Fastener 16 as at least one front clamping means 16 is formed.
- the at least one fastening device 15 at least one rear
- the at least one rear attachment means 18 is preferably used for attachment of an at least trailing end 19 of the cylinder elevator 08 at least in printing operation.
- At least one movable clamping element 20 is arranged, which is further preferably arranged to be jointly movable at least together with the at least one rear fastening means 18.
- the at least one rear attachment means 18 is even more preferably at the same time as at least one movable clamping element 20 is formed.
- a transverse direction A is preferably a transverse direction to a transport direction of the substrate, in particular horizontal direction A.
- the transverse direction A is preferably parallel
- the at least one tensioning element 20 is preferably arranged to be movable and / or displaceable orthogonal to the axial direction A.
- a plurality of clamping elements 20 are arranged successively in a row relative to the axial direction A.
- the at least one clamping device 15 more, in particular at least two and more preferably at least three clamping elements 20, which are preferably arranged in relation to the axial direction A successively arranged.
- these plurality of clamping elements 20 serve a clamping of a common cylinder elevator 08.
- the at least one clamping element 20 is movably arranged in and / or against the axial direction A, in particular relative to a bale 46 of the forme cylinder 07 and / or each other.
- a center clamping element 20, relative to the axial direction A is relative to the axial direction A relative to the bale 46 of FIG.
- different cylinder elevators 08 can be arranged on the forme cylinder 07, for example manually and / or at least partially or preferably fully automated, for example controlled by a control computer control, in particular controlled by a machine control and / or regulated and in particular by means of at least one drive.
- Cylinder lift 08 in particular a pressure plate 08, for example in one
- Elevator memory 21 provided on the printing machine and, for example via a feed path to the forme cylinder 07 preferably automatically fed or at least fed.
- the elevator memory 21 is, for example, as a disc cartridge 21 or as a printing forme magazine of a respective printing unit 01; 02; 03 trained.
- the feed path is designed, for example, as a feed chute.
- at least in the first Printing operation leading end 17 of the cylinder elevator 08 is inserted into the cylinder recess 14 of the respective forme cylinder 07 and in particular by means of at least one front fastening means 16 attached, in particular clamped.
- the cylinder elevator 08 is placed on a lateral surface of the bale 46 of the forme cylinder 07, for example by the forme cylinder 07 making a rotational movement about its axis of rotation 47.
- the at least trailing end 19 of the cylinder elevator 08 is fastened, for example clamped, to the at least one rear attachment means 18 and / or to the at least one tensioning element 20.
- Fixing means 16 and a rear fastening means 18 which are arranged in a same or different cylinder recesses 14.
- a cylinder winding 08 clamped onto the forme cylinder 07 is preferably inked with paint and / or lacquer. A thereby on the
- Cylinder lift 08 arising and to be transferred print image 32 is directly or preferably indirectly by means of the transfer cylinder 06 to that of the
- a register measurement is performed. If a registration measurement is mentioned in the preceding and / or following, then this is understood in particular to mean a measurement of a register and / or a measurement of a register or color register.
- the printed image 32 produced on the cylinder elevator 08 and / or a printed image 32 applied to the substrate and / or the respective cylinder elevator 08 itself is or are preferably adapted to the changes in the substrate resulting from the current printing process. This is preferably done both with respect to the axial direction A or transverse direction A and with respect to the circumferential direction B of the relevant cylinder 07, in particular forme cylinder 07.
- a change in the dimension of the substrate in its transport direction and / or parallel to the circumferential direction B is preferred by a change in the
- Cylinder elevator 08 in the circumferential direction B and / or compensated by a controlled and / or controlled rotational movement of the forme cylinder 07, wherein a course of an angular position of the relevant plate cylinder 07 relative to an angular position of a printing material-carrying cylinder 04; 06 is controlled or regulated.
- Terminal block 23 formed outer clamping element 23 and at least one
- inner clamping bar 24 formed inner clamping element 24.
- the at least one inner clamping element 24 and the at least one outer clamping element 23 serve for attachment of the at least in the printing operation
- At least one support element 25 is preferred; 28 arranged, by means of which the at least one clamping element 20 is supported in the circumferential direction B relative to the bale 46 of the forme cylinder 07 and / or in particular against a channel wall 29 of the cylinder channel 14 and / or at least supportable.
- the at least one support element 25; 28 is configured, for example, as at least one clamping spindle 25 and / or as at least one hollow body 28 which is variable in its volume, for example as at least one pneumatic support element 28, in particular as at least one tensioning hose 28.
- Each formed as a clamping spindle 25 supporting elements 25 preferably have at least one thread which cooperates with a thread of a respective clamping element 20 and / or with a relative to the bale 46 of the forme cylinder stationary thread. Through the thread is preferably a rotational movement about an axis of
- the cylinder elevator 08 can be tensioned and / or stretched and / or relaxed relative to the circumferential direction B.
- support members 28 are preferably relative to the circumferential direction B between a channel wall 29 and the at least one clamping element 20 is arranged.
- a medium in particular a fluid, for example air
- the hollow body 28 preferably expands in the circumferential direction B, thereby moving the at least one tensioning element 20 at least with one component counter to this circumferential direction B, in particular from the hollow body 28 next channel wall 29 away and on a further away from the hollow body 28 channel wall to.
- the relevant cylinder lift 08 can be tensioned and / or relaxed in the circumferential direction B.
- at least one tensioning hose 28 or short tube 28 is arranged.
- an internal pressure of the at least one preferably designed as a hose 28 hollow body 28th
- At least one is preferred preferably remotely actuable actuating means, for.
- a valve in particular a controllable or controllable valve, in particular a proportional valve and / or at least one pressure reducer provided by means of which an internal pressure in the variable in its volume hollow body 28 is selectively adjustable.
- the at least one preferably formed as a tube 28 hollow body 28 is gradually filled with partial volume of the fluid provided for filling, in particular air.
- the partial volumes are preferred by a
- Default with respect to the volume and / or a specification regarding an opening time of a valve or the like specified is carried out iteratively with repeated detection of the internal pressure and / or the position of the at least one clamping element 20 relative to the bale 46 of the forme cylinder 07 and / or repeated image inspection and / or repeated register measurement until a desired value and / or state is reached is.
- the partial volumes are preferably supplied to the hollow body 28, which is preferably designed as a tube 28, in that a pressure which is at least as high as and preferably higher than the internal pressure provided for the interior of the hollow body 28 is applied to a valve adjoining the inner hollow body 28. and that by selectively opening this valve fluid flows into the interior of the cavity 28.
- the adjusting means provided for displacing the at least one tensioning element 20 in the circumferential direction B of the forme cylinder 07 is designed as a preferably electrically operated motor.
- Support member 25 and at least one with respect to its volume variable hollow body 28 formed support member 28 is arranged.
- Support member 25 and at least one with respect to its volume variable hollow body 28 formed support member 28 is arranged.
- the clamping of the cylinder elevator 08 in the circumferential direction B is preferably the
- Cylinder elevator 08 in the circumferential direction B is preferably at least one Changing the dimension of the cylinder elevator 08 in the circumferential direction B, for example, to compensate for changes in the substrate during its
- means for particularly remotely adjustable stretching of the cylinder elevator 08 in the circumferential direction B of the forme cylinder 07 are also preferred.
- Cylinder elevator 08 arranged in the axial direction A.
- a change in the dimension of the substrate in the transverse direction A and thus parallel to the axial direction A is preferably compensated by a change in the dimension and in particular an elongation of at least one corresponding cylinder winding 08 in the axial direction A.
- the tensioning device 15 at least one displacement means 27; 34 for changing the position of at least one of the clamping elements 20 with respect to the axial direction A and / or for stretching at least one
- Cylinder elevator 08 with respect to the axial direction A on.
- this is at least one tensioning element 20 by means of this at least one displacement means 27; 34 in and / or against the axial direction A against at least one further clamping element 20 and / or against a fixed to the bale 46 of the forme 07 component, for example against the bale 46 of the forme cylinder 07 itself supported and / or supportable.
- displacement means 27 are preferably provided which are each arranged between two clamping elements 20 or between a related to the axial direction A boundary of the cylinder channel 14 and the respective outer clamping elements 20.
- the at least one displacement means 27; 34 is, for example, manually and / or at least partially or preferably fully automated, for example, controlled by a controller executed in the control computer, in particular controlled by the machine control and / or regulated and in particular actuated by at least one drive.
- the respective at least one displacement means 27 is connected, for example, to at least two tensioning elements 20.
- the at least one displacement means 27 is then, for example, as at least one displacement spindle 27 and / or at least one with respect to its volume variable hollow body 27, in particular as at least one displacement tube 27 and / or at least one electric drive, for. B. engine formed.
- the respective at least one displacement means 34 is, for example, exclusively connected to a tensioning element 20 on the one hand and a component fixed to the bale 46 of the forme cylinder 07, for example the bale 46 of the forme cylinder 07 itself.
- the at least one displacement means 34 is designed such that there are different sized distances for the displacement of the same respective
- Clamping element 20 allows and / or that it allows different distances for the displacement of different clamping elements 20.
- two examples of this second embodiment will be described.
- Displacement means 34 is preferably causes an axial displacement of the at least one clamping element 20 by means of an extension of at least one first force transmission element 36 or short first force transmitter 36 relative to the axial direction A.
- the at least one tensioning element 20 and preferably the plurality of tensioning elements 20 are preferably arranged in the cylinder recess 14, in particular in succession in a row relative to the axial direction A.
- at least two and more preferably at least three clamping elements 20 are arranged one after the other in such a way.
- the at least one tensioning element 20 preferably has at least one outer clamping element 23 and at least one inner clamping element 24 on. More preferably, each of the at least two clamping elements 20 each have at least one outer clamping element 23 and in each case at least one inner
- clamping element 24 on.
- the plurality of clamping elements 20 are arranged, for example, such that their inner clamping elements 24 are aligned in the axial direction A and / or that their outer clamping elements 23 are aligned in the axial direction A.
- this state can be canceled.
- An attachment of the trailing at least in printing operation end 19 to the respective clamping element 20 by clamping the trailing at least in printing operation end 19 between the respective inner clamping member 24 and the respective outer clamping member 23 is preferably carried out.
- the actuation of the respective acting on the at least one clamping element 20 actuating means for displacement of the respective clamping element 20 in the circumferential direction B of the forme cylinder 07 and / or in the axial direction A preferably takes place from outside the forme cylinder 07, in particular contactless, z. B. magnetic.
- the at least one displacement means 34 at least a first
- the at least one displacement means 34 preferably has at least one first force transmission element 36.
- the at least one force-generating element 35 can preferably be activated and also deactivated again.
- the at least one force-generating element 35 is preferably designed as at least one first displacement drive 35. That at least one
- Force generating element 35 is preferred as at least one with respect to its volume variable hollow body 35, for example as at least one pneumatic
- Force generating element 35 in particular as at least one expansion hose 35th
- this hollow body 35 is acted upon by compressed air or at least acted upon.
- At least one rotary inlet is preferably arranged on at least one end face of the relevant forme cylinder 07, in particular on one of its journals, in order to hold the fluid, e.g. B. the air as a medium in the forme cylinder 07 and in particular in the hollow body 35 and expansion tube 35 and / or in the
- the at least one rotary inlet is preferably multi-channel, d. H.
- Force generating elements 35 each preferably preferably acted upon by fluids of different pressures.
- the at least one rotary inlet is in particular also designed such that a fluid to be acted upon in the relevant
- Form cylinder 07 arranged support member 28 and / or force generating element 35 in each case during a rotation of this forme cylinder 07 is acted upon by the fluid or at least can be acted upon.
- the at least one rotary inlet whose multiple channels during the rotation of the forme cylinder 07 each acted upon with fluids of different pressures or at least acted upon.
- an internal pressure of the expansion hose 35 is preferred
- trained hollow body 35 can be raised, in particular selectively raisable.
- at least one valve in particular a proportional valve and / or at least one pressure reducer is preferably provided by means of which an internal pressure can be selectively adjusted.
- the partial volumes are preferably predetermined by a specification with respect to the volume and / or a specification with respect to an opening time of a valve or the like. For example, such a stepwise filling is carried out iteratively with repeated detection of the internal pressure and / or the location of the at least one tensioning element 20 relative to the bale 46 of the
- Partial volumes are preferably supplied in such a way to the hollow body 35, which is preferably designed as expansion hose 35, that a pressure which is at least as high as and preferably higher than the internal pressure provided for the interior of the hollow body 35 rests against a valve adjoining the interior of this hollow body 35, and that by selectively opening this valve fluid flows into the interior of the cavity 35.
- a pressure which is at least as high as and preferably higher than the internal pressure provided for the interior of the hollow body 35 rests against a valve adjoining the interior of this hollow body 35, and that by selectively opening this valve fluid flows into the interior of the cavity 35.
- Embodiment variant is provided for displacing the at least one clamping element 20 in the axial direction A of the forme cylinder 07 actuating means as a preferably electrically operated motor.
- the at least one force-generating element 35 is arranged such that a force 39 generated by it is initially oriented at least substantially orthogonally to the axial direction A. Then at least one is preferred
- Power transmission element 36 is arranged, which is formed for example as at least one lever or preferably at least one first bending spring 36.
- the at least one bending spring 36 is preformed such that a convex portion of the
- Biegefeder 36 facing the at least one force generating element 35 and with respect to the axial direction A at a same position as the at least one force generating element 35 is arranged.
- the at least one is preferred
- Biegefeder 36 arranged in its longitudinal extent in the axial direction A.
- the at least one force transmission element 36 is at least a first
- the first connection point 37 is also called, for example, cylindrical bearing 37.
- the at least one force transmission element 36 is connected to at least one second connection point 38 with the at least one tensioning element 20 and / or in contact.
- the second connection point 38 is also called clamping element bearing 38, for example.
- the first junction 37 allows and / or the second connection point 38 relative movements between the at least one force transmission element 36 on the one hand and the bale 46 of the forme cylinder 07 and / or the respective clamping element 20 on the other hand with respect to the circumferential direction B. This is for example by arranging at least one dovetail guide 45 allows, for example, a Connection between the bale 46 of the
- a shape and / or position of the at least one force transmission element 36 can be changed such that the second connection point 37 is removed from the first connection point 37 with respect to the axial direction A.
- Force generating element 35 outgoing force 39 generated by an increased pressure within the expansion hose 35.
- the bending spring 36 can act as a force transmission element 36 via the expansion hose 35 with a force 39 which acts essentially transversely to the longitudinal extent of the bending spring and preferably engages in the middle of the bending spring 36. This leads to a deformation of the bending spring 36, so that a distance a between the cylinder bearing 37 and the clamping element bearing 38 increases and thus the clamping element 20 is displaced with respect to the axial direction A.
- the at least one force transmitting element 36 is elastically designed such that it generates a counteracting its counteracting force, which is further preferably less than the force generated by the force generating element 35 force 39.
- the tensioning element bearing 38 is embodied as a loose second connection point 38
- at least one restoring element 40 generating a restoring force is preferred arranged, for example in the form of a compression spring 40.
- the respective clamping element 20 can be moved back to its initial position with respect to the axial direction A.
- the return element 40 is
- Clamping element 20 again to spend in its relative to the axial direction A starting position, in particular by the counterforce is effected by the force transmission element 36 itself.
- expansion hose 35 can also at least one
- Pneumatic cylinder and / or at least one hydraulic cylinder and / or at least one electric drive can be used as a force-generating element 35, for example in conjunction with at least one gear, such as a threaded spindle.
- the at least one force transmission element 36 is alternatively or additionally designed as at least one toggle mechanism. Preferably then acts the force 39 of the
- Displacement means 34 differs from the first example in particular by a type and / or direction of the force exerted by the force transmission element 36 force. While in the first example, the clamping element 20 upon activation of the
- Force generating element 35 is pushed by the power transmission element 36 is in the second example as a clamping element 20 upon activation of the
- the second example is preferred to the first example match.
- the at least one bending spring 36 is preformed such that a concave region of the bending spring 36 facing the at least one force generating element 35 and with respect to the axial direction A at a same position as the at least one force generating element 35 is arranged.
- a shape and / or position of the at least one force transmission element 36 is then preferably changeable by a force emanating from the force-generating element 35 such that the second connection point 37 is moved toward the first connection point 37 with respect to the axial direction A.
- Force generating element 35 outgoing force 39 generated by an increased pressure within the expansion hose 35.
- the bending spring 36 can act as a force transmission element 36 via the expansion hose 35 with a force 39 which acts essentially transversely to the longitudinal extent of the bending spring 36 and preferably engages in the middle of the bending spring 36. This leads to a deformation of the bending spring 36, so that a distance b between the cylinder bearing 37 and the clamping element bearing 38 is reduced and thus the relevant clamping element 20 is displaced with respect to the axial direction A.
- a restoring element 40 is arranged, this is preferably designed as at least one tension spring 40.
- a force transmitting element 36 is not arranged, but a
- Force generating element 35 is directly connected to the respective at least one
- Clamping element 20 in conjunction and is adapted to set its relative to the axial direction A position directly.
- the cylinder lift 08 mounted on the forme cylinder 07 is preferably changed in its dimension according to predetermined values and preferably in a remote-adjustable manner in the axial direction A and / or in the circumferential direction B, in particular stretched.
- the cylinder elevator 08 is preferably arranged on the forme cylinder 07 and more preferably fastened, in particular clamped, at its leading end 17 in printing operation in or on the front fastening means 16 and at its trailing end 19 in the printing operation in which at least one arranged in the cylinder channel 14 clamping element 20 of the clamping device 15 is held.
- a tensile stress FZ is built up within the cylinder elevator 08, which is increased in the circumferential direction B for stretching the cylinder elevator 08.
- Circumferential direction B the cylinder elevator 08 is stretched on the surface of the forme cylinder 07 and optionally stretched.
- the at least one clamping element 20 movably arranged in the clamping element 20 preferably has at least one outer clamping element 23 and at least one inner clamping element 24, wherein the clamping element 20, at least one inner clamping element 24, in its movement in the circumferential direction B of the forme cylinder 07 by at least a fixed in particular with the bale 46 of this forme cylinder 07, extending in the circumferential direction B of the forme cylinder 07
- Guide rail 48 z. B. is forcibly guided along a travel S, said at least one guide rail 48 preferably at or in the bottom 49 of the
- a low height above the bottom 49 of the tensioning channel 14 is to be understood as meaning a height which, starting from the level of the bottom 49 of the tensioning channel 14, is at most half the height of the relevant tensioning element 14 arranged in the tensioning channel 14, ie in particular its inside Clamping element 24, preferably only up to a third of this height measures.
- the guide rail 48 is formed as a tongue and groove system, wherein extending in the circumferential direction B of the forme cylinder 07 z. B.
- T-shaped spring on the bottom 49 of the clamping channel 14 are formed, as shown by way of example in FIG. 8.
- the moving in the circumferential direction B of the forme cylinder 07 clamping element 20 is of the variable of its volume in the hollow body 28 z. B. by means of a preferably acting directly on the respective clamping element 20 piston 53 preferably against the force FF at least one in the clamping channel 14 in or on a holder 52 firmly supported spring element 51 driven.
- the at least one spring element 51 is preferably designed in each case as a compression spring.
- Fig. 3a shows the state of clamping a preferably arranged on a forme cylinder 07 cylinder elevator 08. Due to the geometric conditions outweighs the resulting force in the environment of z. B. T-shaped guide rail 48 against the counter force FZ of the cylinder elevator 08. The cylinder lift 08 is along the z. B. by the at least one guide rail 48 fixed travel S moves in the direction of the indicated movement arrow and thereby tense.
- Fig. 3b shows the state of self-locking, d. H. a persisting of the relevant clamping element 20 at a z. B. located along the travel S position.
- Form cylinder 07 can not be reduced.
- An unintentionally set too high tensile stress FZ can not be reversed during the rotation of the respective forme cylinder 07, but only after a stoppage of the relevant forme cylinder 07 and a release z. B. of the external terminal block 23 formed as outer clamping element 23 of the respective clamping element 20.
- Clamping element 20 is displaced in each case by a particular of the respective tensile stress FZ opposing driving force FH, wherein at least one of the clamping elements 20 is held at a reduction of the driving force FH below a limit in its position, for. B. in the state of self-locking, in which a held by the one held in position, z. B. in self-locking tensioning element 20 inflated tensile stress FZ formed in a cylinder lift 08 on a particular participating in a processing of a particular print job form cylinder 07 by a tracking, d. H. is compensated in particular by increasing the respective tensile stress FZ in the respective cylinder elevator 08 of at least one other form cylinder 07, in particular participating in the execution of this print job.
- This method can be used advantageously in combination with one or more of the others already described or mentioned below
- Each cylinder elevator 08 of a print job is preferably provided with at least one image feature in the course of its exposure, for example in the form of a registration cross.
- the at least one image feature is usually arranged in a print-image-free area of the cylinder elevator 08, but may for example also be part of the print image 32 itself.
- At least two such image features are provided which differ from one another with respect to their position on the forme cylinder 07 in the axial direction A and / or in the circumferential direction B.
- these are provided in at least one pressure-image-free region extending in the axial direction A and / or the circumferential direction B of the forme cylinder 07.
- Print job deposited It is beneficial before processing the upcoming
- Print job for each of the printing units 01 involved in the execution of the print job; 02; 03 each determine the respective at least one clamping element 20 machine-specific data in each case and to deposit in the respective memory.
- the z. B. also a ranking of these printing units 01; 02; 03 in their respective use in the processing of the relevant print job, especially in conjunction with specific data for the clamped cylinder elevator 08 and / or specific data for the printing material to be printed in the upcoming printing substrate each printing process-related dimensional changes to the substrate in an automatic control or regulation be counteracted, taking into account this specific data from the control computer
- Correction values are determined, which are used for driving z.
- the control computer determines a deviation of z. B. the printing process and / or at least one dimension of the printing substrate relevant actual values to setpoint values and then determines from this setpoint / lst-value comparison z. B. the position or position of the respective clamping element 20 influencing correction values, which reduces or eliminates this deviation.
- the control computer is preferably part of the machine control.
- process-specific data can be stored in the or a further memory, wherein the process-specific data in particular a production speed of
- the specific data for the clamped cylinder lift 08 and / or for the printing material to be printed in the particular printing data are stored in their respective memory or in the shared memory, preferably in dependence on at least one variable process parameter or machine parameters, eg. B. depending on the production speed of
- Processing machine in particular of a printing speed of the printing machine preferably designed as a sheet-fed press.
- z. B Dependent on a variable process parameter or machine parameter deposit of the respective computationally or experimentally determined specific data is z. B. each in a table or by a mathematically describable functional relationship, the respective functional relationship in a z. B. Cartesian coordinate system each z. B. by value pairs or in one Curve course is shown or is or at least representable. Such a curve is also called a tracking curve.
- a quantity of specific data or different Nachwillkurven are stored in the memory in question, from this amount in particular by the operator of the relevant preferably designed as a printing press
- Each of these Nach2020kurven can each alone or together with at least one of the other Nachindustrialkurven for each setting and / or tracking z.
- B. at least one of the clamping elements 20 and / or for adjusting the angular position of at least one of the cylinders involved in the printing process 04; 06; 07 are applied.
- at least one print image 31 as well as at least one cylinder lift 08 or both can each be adapted to a change in the substrate.
- the correction values entered or selected by the operator into the control computer can each be used alone or jointly, for B. in superposition, especially in addition to at least one of the
- Control computer stored Nachtexkurven for each setting and / or
- Clamping elements 20 used specific data or correction values can also be learned by the control computer by preferably several in the
- a method for adapting a printed image 32 and / or at least one cylinder elevator 08 to a printing material change in a printing machine can thus be carried out in which at least one cylinder elevator 08 or the respective cylinder elevator 08 with at least one in a cylinder channel 14 of a plate cylinder 07 of the Pressing machine arranged clamping element 20 is stretched on the lateral surface of the relevant printing forme cylinder 07, wherein in each case by means of a movement of the at least one clamping element 20 in the axial direction A and / or in the circumferential direction B of the plate cylinder 07 within the respective cylinder elevator 08, a tensile stress FZ is established.
- the adaptation to the printing substrate change in particular during the rotation of the plate cylinder 07 in its circumferential direction B with a drive of the plate cylinder 07 by a controlled and / or controlled rotational movement of this plate cylinder 07 is performed.
- the at least one tensioning element 20 in particular when setting up the printing machine for a pending print job and / or during the execution of the print job performed rotation of the plate cylinder 07 of a respective clamping element 20 controlling control computer within the cylinder elevator 08 each have a specific value for the respective tension FZ adjusted and / or tracked to adapt to the change in substrate.
- the adaptation of the printed image 32 and / or the at least one cylinder elevator 08 to the printing stock change preferably takes place in each case on the basis of stored in at least one memory specific data for the respective cylinder elevator 08 and / or for a printed in the upcoming print job substrate and / or machine-specific Data and / or process-specific data.
- the specific data for the clamped cylinder lift 08 relate z. B. a height and / or a type of the respective cylinder elevator 08.
- the specific data for the printed in the upcoming print job substrate concern z. B. information about its type or material and / or its basis weight and / or its fiber orientation and / or its thickness and / or its length and / or width and / or the nature of its surface to be machined or its Feuchtdehnungs .
- machine-specific data relate z. B. a setting of an inking unit 09 of the printing machine and / or a setting of a dampening unit 12 of the printing press and / or a setting of a pressure between the substrate and z. B. a cooperating with the forme cylinder 07 transfer cylinder 06 of the printing machine and / or a respective position of the at least one clamping element 20 before the processing of the print job.
- the process-specific data relate z. Example, a production speed of the printing press and / or information about a coverage of the printing material and / or information about the temperature and / or humidity of the ambient air surrounding the substrate.
- the specific data for the clamped cylinder elevator 08 and / or the specific data for the printing material to be printed in the at least one memory are stored in the preferred embodiment depending on at least one variable process parameters or machine parameters, wherein the at least one variable process parameters z.
- Print job is. The storage of the specific data for the clamped cylinder elevator 08 and / or the specific data for that in the upcoming
- Print job to be printed substrate and / or the machine-specific data and / or the process-specific data is carried out in the at least one memory each in a table or by a mathematically describable functional
- Coordinate system is represented by value pairs or in a curve.
- Process-specific data are determined either computationally or experimentally.
- the specific data is z. B. by an operator of the printing press in which the respective clamping elements 20 adjusting and / or tracking control computer input or selected from the connected to the control computer memory. Even in the case of several persisting at their respective position, z. B. self-locking trained clamping elements 20 in various participating in the execution of the same print job form cylinder 07, the adjustment and / or tracking of the respective tensile stress FZ takes place in at least one of the cylinder elevators 08th
- Substrate and / or result from the process-specific data to compensate for an expected change in substrate before processing the print job, d. H.
- the previously made setting the respective z. B. by the clamping elements 20 applied tensile stress FZ is tracked in particular based on at least one variable process parameter or machine parameter.
- FIG. 1 There are schematically the printing cylinder of a printing unit 01; 02; 03 shown.
- a printing unit 01; 02; 03 includes in the field of a so-called printing unit superstructure in an embodiment for the offset printing process as a transfer cylinder 06, z. B. as a blanket cylinder, running first printing cylinder.
- This is assigned to another, designed as a cylinder 07 printing cylinder.
- Printing unit 01; 02; 03 in the area of a so-called printing unit substructure designed as a printing cylinder 04 printing cylinder and also referred to as a transfer drum 05 transfer drum.
- the exemplary embodiment are or are the
- the further printing cylinder is assigned a position-adjustable drive. This is usually designed as a direct drive DA, d. H. the drive motor is connected coaxially fixed to the drive shaft of the further printing unit cylinder and there is no positive connection with the drive of other cylinders and / or rollers.
- This position-adjustable drive is trackable to the first printing cylinder. This is done so that actual position values LW1 of the first printing cylinder are compared with actual position values LW2 of the further printing cylinder. As a result, position differences are determined whose values serve as the basis for the actuation of the position-adjustable drive. This creates a press-specific error that must be compensated. This is done by the from the position differences and a not shown here
- Printing cylinder can be determined. This means that the corrected value for the position-adjustable drive is determined. This is done in a control unit 56.
- press-specific errors include, for. B. caused by concentricity error of the first printing cylinder cylinder error.
- Printer-specific errors are also errors that z. B. by concentricity error of at least one provided for detecting the angle of rotation provided angular position encoder on the first printing cylinder.
- Correction values KW1 determined. These first correction values KW1 are now transmitted to a subordinate overlay computer 57 in the form of first correction signals 58 and stored there. The first correction values KW1 are now available for the control of the position-adjustable drive.
- the means for determining the angle-related correction values further comprises a computing unit 59 for determining second angle-related correction values KW2.
- This computation unit 59 is given pressure-job-specific errors as a basis for the calculation of the second correction values KW2.
- the register errors that arise as a result of the self-adjusting extension of the printed sheet 31 belong to this group of print job-specific errors. Due to the progressing from printing unit to printing unit loading of the
- Sheet 31 with color and moisture during its passage alters its dimension both in length and in width.
- the increase in length of the printing sheet 31 can, for example, by the already described
- Pressure length compensation can be compensated. This is through a targeted
- Circumferential speed is changed cyclically. That is, the other one
- Printing cylinder is compared to the first printing cylinder within each Circulating faster driven, creating a minimal slip between the
- the printed image 32 to be applied to the printed sheet 31 is also printed longer and thus compensates for the increase in length of the printed sheet 31 increasing from printing unit to printing unit or from color to color. After each round or after a fixed, in particular on
- Control computer set number of revolutions of the rotational speed of the second printing cylinder is set by the control computer back to the rotational speed of the first printing cylinder.
- the printed image 32 of the printed sheet 31 has at least two measuring points 42 which are each formed here as registration marks and which have been applied during the exposure of the printing plate. These are in a direction indicated by an arrow transport direction of the printing sheet 31 respectively to the
- Print starts and arranged at the print ends of the print image 32. It is also possible to arrange an additional third registration mark between these two registration marks.
- the current print length can be determined in different ways.
- intermediate values can be obtained by measuring these pass marks. These intermediate values allow a statement about the course of the printing length in the direction of transport of the printing sheet 31. This makes it possible to change the printing length in a more targeted manner, ie. H. the
- Printing length change can be selectively changed locally. Prerequisite is the use of suitable facilities, such as so-called actuators.
- Another way to determine the printing length is, for example, by a z. B. trained as a camera detection device 60 z. B. an inspection system register deviations in the print image 32 to detect and determine the print length from these register deviations. This can be done manually on test sheets as well as inline in the press.
- the first correction values KW1 are superposed with the second correction values KW2.
- Control signals 62 are generated, which are communicated to a drive control 63 of the further printing cylinder.
- the superposition of a first correction value KW1 with a second correction value KW2 can be carried out sequentially. That is, it is for a first rotation angle range, for example, the position-adjustable drive a first
- Correction value KW1 predefined, the control signal 62 is generated and the position-adjustable drive is set.
- the second correction value KW2 is specified for the following second rotation angle range, the control signal 62 is generated and the position-adjustable drive is set. Subsequently, for the following third
- Rotation angle range in turn given the first correction value KW1. This sequence continues until the circulation is completed at 360 °.
- the superposition of the first correction values KW1 with the second correction values KW2 is carried out simultaneously. This is a first
- control computer of the processing machine in particular the printing press, z. B. the previously described functions of the control unit 56 and / or the
- Overlay calculator 57 and / or the arithmetic unit 59 and / or optionally also the drive control 63 combine in itself.
- each printing unit 01; 02; 03 the actual position of the respective printed on the respective cylinder elevator 08 image feature, in particular register cross detected. For example, one takes
- Print job the layers of image features in specified or at least definable Detected intervals or continuously and transmitted to the control computer.
- an adjustment of the position of the clamping elements 20 and / or a corresponding control and / or regulation of the rotational movement of the at least one forme cylinder 07 involved in the printing process can be carried out continuously during the processing operation of the substrate, in particular in a current printing process of the printing press.
- control computer by means of the control computer are preferably optionally existing deviations of the image features or register marks with each other calculated by different printing units 01; 02; 03 come.
- specific data is preferably a required change in position of the corresponding clamping elements 20 of the respective printing unit 01; 02; 03 and / or a required corresponding control and / or regulation of the rotational movement of the forme cylinder 07 determined.
- Force generating element 35 activated accordingly.
- Force generating element 35 activated accordingly.
- Expansion hose 35 filled with a medium and in its interior for the
- a pressure necessary in the support element 28 for a required change in position of the clamping elements 20 is calculated and the support element 28 is activated accordingly.
- the support tube 28 is filled with a medium and constructed in its interior of the required for the change in position of the clamping element 20 adequate pressure.
- the at least one clamping spindle 25 is displaced accordingly.
- the respective force-driven on the at least one guide rail 48 clamping element 20 is moved to a corresponding position along the travel S and adjusted or fixed there by self-locking.
- a course of the angular position of the forme cylinder 07 necessary for a required corresponding control and / or regulation of the rotational movement of the forme cylinder 07 relative to an angular position of a transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04 is calculated and a rotation the form cylinder 07 adapted and / or executed accordingly.
- a resulting change in position of the clamping elements 20 and / or an elongation of the cylinder elevator 08 and / or a displacement of an image feature and / or a register of the printed image is preferably measured and transmitted to the control computer.
- a deviation of a desired position of a marking serving as a register mark from an actual position of the marking serving as a register mark results in the axial direction A.
- a method for compensating register deviations and / or register deviations in the axial direction takes place A.
- the method preferably comprises at least one change in the position of at least one tensioning element 20 with respect to the axial direction A.
- one also speaks of a trapezoidal deviation because such deviations due to, for example, the gripper are usually more pronounced in the rear region of the arc if necessary in the front area of the arch.
- register mark is a printed register mark when printed.
- the trailing end 19 of the cylinder elevator 08 a increased stress with respect to the axial direction A exposed and thus stretched in the axial direction A.
- one or more of the clamping elements 20 or clamping segments 20 are displaced with respect to the axial direction A.
- the displacement of the clamping elements 20 with respect to the axial direction A for stretching the cylinder elevator 08 is preferably carried out from the inside to the outside, that is, starting from the center of the cylinder channel 14 related to the axial direction A to an edge of the cylinder channel 14 related to the axial direction A.
- the displacement of the clamping elements 20 preferably takes place symmetrically about an axial direction of the center of the bale of the forme cylinder 07.
- the displacement of the clamping elements 20 is preferably also asymmetric with respect to the axial direction A related center
- more clamping elements 20 of the axial direction A are displaced as opposed to this axial direction A are displaced and / or exclusively clamping elements 20 are displaced in or against the axial direction A.
- this displacement of the clamping elements 20 by means of at least one
- the displacement of the clamping elements 20 and thus a stretching and / or relaxing the cylinder elevator 08 with respect to the axial direction A and / or in the circumferential direction B preferably takes place during a rotation of the respective cylinder lift 08 carrying the forme cylinder 07.
- the Cylinder lift 08 preferably brought into contact with a surface, for example a surface of another body of revolution.
- a rotational body is in particular the blanket cylinder 06 and / or one or more
- the respective at least one tensioning element 20 is preferably first changed with respect to its position related to the axial direction A, and then the rolled over in the printing operation trailing end 19 of the cylinder elevator 08 of the corresponding rotating body.
- the respective at least one tensioning element 20 is changed with respect to its position related to the axial direction A, and during this time the end 19 of the trailing end in the printing operation
- Cylinder elevator 08 is rolled over by the corresponding rotary body. For example, a change in the relative to the axial direction A position of the respective clamping element 20 takes place in several successive sub-operations. As a result, a more precise and gentler tension of the cylinder elevator 08 is made possible. In particular, then the overrolling during the sub-operations and / or after the
- the force acting on the clamping elements 20 and, for example, the pressure inside the corresponding hollow body 35 is lowered to a value in the static friction region between a surface of the Form cylinder 07 and a bottom of the cylinder elevator 08 is located.
- This reduction ensures that, while maintaining the position of the clamping elements 20, the force acting on the cylinder lift 08 is kept relatively small. In this way, a flow and thus a creeping and in particular unwanted further expansion of the material of the cylinder elevator 08 is counteracted.
- the displacement of the clamping elements 20 and thus in particular the stretching and / or relaxing of the cylinder elevator 08 in the axial direction A are preferably independent of the tensile stress FZ in the circumferential direction B and more preferably under particular maintenance of the tensile stress FZ in the circumferential direction B and without a previous Canceling a tensile stress FZ in
- the tensile stress FZ is maintained unchanged in the circumferential direction B during this time.
- This tensile stress FZ preferably corresponds at most to that reduced tensile stress FZ, below which the Cylinder lift 08 is permanently clamped on the forme cylinder 07. But it is also possible to reduce this only temporarily.
- Register deviations and / or register deviations in the circumferential direction B is preferably a change in the dimension of the cylinder elevator 08 in the
- Circumferential direction B in particular by a change in the position of at least one clamping element 20 with respect to the circumferential direction B.
- this takes place
- a pressure in which is formed with respect to its volume variable hollow body 28 support member 28 is increased, whereby the at least one clamping element 20 is moved in the circumferential direction B and the cylinder elevator 08 is tensioned accordingly and thereby stretched.
- a relaxation of the cylinder elevator 08 and after overcoming a static friction a shortening of the cylinder elevator 08 takes place.
- z. B the at least one designed as a clamping spindle 25 support member 25 so activated, for example, rotated that a displacement of the corresponding at least one clamping element 20 takes place and thereby an elongation of the cylinder elevator 08 is achieved.
- the displacement of the clamping elements 20 and thus in particular a stretching and / or relaxing the cylinder elevator 08 with respect to the circumferential direction B takes place - as mentioned - preferably during a rotation of the respective cylinder elevator 08 supporting the cylinder 07.
- the cylinder elevator 08 in Contact with a surface, for example, brought to a surface of another body of revolution.
- the respective at least one tensioning element 20 is preferably initially changed with respect to its position related to the circumferential direction B, and then the end 19 of the cylinder elevator 08 following the printing operation is rolled over by the corresponding rotational body.
- the respective at least one tensioning element 20 is changed with respect to its position related to the circumferential direction B, and in the meantime the in the
- Circumferential direction B related position of the respective clamping element 20 in several successive sub-operations As a result, a more precise and gentler tension of the cylinder elevator 08 is made possible. In particular, then the roll over can also take place during the sub-operations and / or after the sub-operations.
- the force acting on the clamping elements 20 and, for example, the pressure inside the corresponding hollow body 28 is lowered to a value in the static friction region between a surface of the Form cylinder 07 and a bottom of the cylinder elevator 08 is located.
- This reduction ensures that, while maintaining the position of the clamping elements 20, the force acting on the cylinder lift 08 is kept relatively small. In this way, a flow and thus a creeping and in particular unwanted further stretching of the material of the Cylinder lift 08 counteracted.
- a change in the dimension of the substrate in the circumferential direction B will be an alternative or in addition to a change in the dimension of the at least one
- Cylinder elevator 08 in the circumferential direction B preferably compensated by a correspondingly controlled and / or controlled rotational movement of the forme cylinder 07. Accordingly, or alternatively or in addition to the above-described change in the dimensions of the cylinder elevator 08, in particular with the aid of the drive of the forme cylinder 08, a length compensation is carried out or is at least such
- the drive of the forme cylinder 07 is in this case preferably designed as a single drive, more preferably as a direct drive DA.
- a ratio between a first angular velocity of the forme cylinder 07 and a second angular velocity of the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04, is called speed ratio, in particular speed ratio between forme cylinder 07 and impression cylinder 04 Machining the substrate, the speed ratio selectively influenced and / or adjusted so that it deviates at least temporarily and preferably the majority of the time of processing of any integer ratio.
- speed ratio in particular speed ratio between forme cylinder 07 and impression cylinder 04 Machining the substrate, the speed ratio selectively influenced and / or adjusted so that it deviates at least temporarily and preferably the majority of the time of processing of any integer ratio.
- Speed ratio at least temporarily, and preferably more than half of the time is not integer.
- An integer ratio of two values is to be understood in particular as meaning a ratio of values corresponding to the value corresponding to the denominator of an integer in the mathematical sense when the value corresponding to the numerator is divided. Examples of integer ratios are therefore one to one, two to one, three to one, four to one, or the like.
- Under a processing of the substrate is preferably a regular processing of the substrate to understand, for example, a printing operation and / or a painting process and / or an embossing process and / or a punching process and / or a perforation.
- a regular processing is preferably to be distinguished from a start-up phase of the operation and / or a termination phase of the operation and / or an interruption of the operation.
- the substrate is processed in such a way that this speed ratio is changed during processing of the substrate, in particular the ratio between the first angular velocity of the forme cylinder 07 and the second angular velocity of the transport body 04 guiding the substrate, in particular cylinder 04 or impression cylinder 04 .
- This processing of the substrate relative to the angular velocities relative acceleration between the forme cylinder 07 on the one hand and the substrate carrying the substrate 04, in particular cylinder 04 or impression cylinder 04 on the other.
- Such an acceleration is preferably at least temporarily positive and / or at least temporarily negative.
- a change in the speed ratio preferably takes place during this processing of the substrate, more preferably a periodic change in the speed ratio.
- An integer fraction is a fraction that, when multiplied by an integer, becomes unity.
- the integer fraction is a fraction that, when multiplied by an integer, becomes unity.
- Rotation of the forme cylinder 07 is set variably so that successive revolutions differ with respect to a respective course of the speed ratio to each other.
- the forme cylinder 07 is rotated during a full revolution by 360 ° over at least a first angular range of at least 180 ° and preferably at least 270 ° with at least a first peripheral speed of the forme cylinder 07 which is greater than a first peripheral speed of the substrate
- Transport body 04 in particular cylinder 04 or impression cylinder 04. Then, this form cylinder 07 is preferred over at least a relatively small second
- Angular range rotates with at least a second peripheral speed of the forme cylinder 07, which is smaller than a second peripheral speed of the substrate carrying the substrate 04, in particular cylinder 04 or counter-pressure cylinder 04.
- the cylinder elevator 08 of the forme 07 rushes the substrate during through the at least one first angle range predetermined largest part of its revolution, whereby, for example, the printed image 32 is transmitted to the substrate shortened.
- the forme cylinder 07 is rotated relatively slowly, so that the transport body 04 guiding the substrate, in particular cylinder 04 or
- Counter-pressure cylinder 04 the form cylinder 07 overtakes again.
- a transfer cylinder 06 preferably but not necessarily rotates with a
- Circumferential speed which substantially corresponds to a transport speed of the substrate.
- the forme cylinder 07 is rotated during a full revolution by 360 ° over the at least first angular range of at least 180 ° and preferably at least 270 ° with at least a first peripheral speed of the forme cylinder 07 which is smaller than a first peripheral speed of the transporting body 04 guiding the substrate. in particular cylinder 04 or counter-pressure cylinder 04. Then, preferably, this forme cylinder 07 is rotated over at least a relatively small second angular range with at least a second peripheral speed of the forme cylinder 07, which is larger is as a second peripheral speed of the substrate carrying the substrate 04, in particular cylinder 04 or impression cylinder 04. In this way, the substrate rushes the forme cylinder 07 during by the at least one first angular range of at least 180 ° and preferably at least 270 ° with at least a first peripheral speed of the forme cylinder 07 which is smaller than a first peripheral speed of the transporting body 04 guiding the substrate. in particular cylinder 04 or counter-pressure cylinder 04. Then, preferably, this forme
- Angle range predetermined largest part of the revolution of the forme cylinder 07 whereby, for example, the printed image 32 is transferred to the substrate elongated. Subsequently, the forme cylinder 07 is rotated relatively quickly, so that it overtakes the transport body 04 guiding the substrate, in particular the cylinder 04 or impression cylinder 04.
- the transfer cylinder 06 which is arranged for example, also in this case preferably but not necessarily rotates at a peripheral speed which essentially corresponds to the transport speed of the substrate.
- a change in the speed ratio is effected by an acceleration of the forme cylinder 07.
- Counter-pressure cylinder 04 can be accelerated. However, preferably all the substrate leading transport body 04, in particular cylinder 04 or impression cylinder 04 are connected to a common main drive and / or gear train 55 of the machine, while preferably each forme cylinder 07 is driven independently thereof.
- the forme cylinder 07 thus preferably has a drive which, independently of the drive of the forme cylinder 07 contacting transfer cylinder 06 and / or
- Counter-pressure cylinder 04 is.
- the individual acceleration of the forme cylinder 07 is to be preferred.
- Form cylinder 07 with the substrate or the transfer cylinder 06 in contact while the first forme cylinder 07 holds an angular position within the at least one first angle range.
- the forme cylinder 07 and the cylinder lift of the forme cylinder 08 are out of contact with the substrate and the transfer cylinder 06, while the first forme cylinder 07 has an angular position within the at least one second angle range, in particular because the forme cylinder 07 is oriented so that the cylinder channel 14 of the forme cylinder 07 in this at least a second angular range of the transfer cylinder 06 and / or the impression cylinder 04 and / or the Substrate is arranged opposite.
- Processing of the substrate preferably takes place in such a way that, during the processing of the substrate, this speed ratio is changed at least twice, that is, for example, initially reduced and then increased again. Further preferably, a processing of the substrate takes place such that during processing of the
- Substrate this speed ratio is changed at least twice during each complete revolution of the forme cylinder 08, that is, for example, initially reduced and then increased again. Further adjustments to corresponding changed circumstances are possible. This is the case, for example, when the forme cylinder 07 is occupied in succession in the circumferential direction B with several cylinder elevators 08.
- such a controlled and / or regulated rotational movement of the forme cylinder 07 to compensate for changes in the substrate and / or the printed image 32 also takes place in the case of at least one cylindrical elevator 08 designed as a sleeve.
- Form cylinder 07 for adjusting the outgoing from him print image 32 to the change in the dimension of the substrate and / or to compensate for the printing length by the drive of the forme cylinder 07 a differential angle between the forme cylinder 07 and the substrate carrying the transport body 04, in particular cylinder 04 or impression cylinder 04 generated.
- the drive of the forme cylinder 07 is preferably controlled so that the difference angle between the forme cylinder 07 and the substrate carrying the substrate 04, in particular cylinder 04 or Counter-pressure cylinder 04 is brought within a complete revolution of the forme cylinder 07 from an initial value to a predetermined final value and brought back to the initial value.
- the control can also be carried out so that within a complete revolution of the forme cylinder 07 in several cycles of the difference angle between the forme cylinder 07 and the substrate leading
- Transport body 04 in particular cylinder 04 or impression cylinder 04 is brought from an initial value to at least a predetermined final value and is returned to the initial value.
- an elongation of the cylinder elevator 08 in the axial direction A and an expansion of the cylinder elevator 08 in the direction of rotation B take place at least temporarily at the same time.
- a compensation of the printing length by the drive of the forme cylinder 07 takes place parallel to and / or at least temporarily simultaneously with at least one elongation of the cylinder elevator 08 in the axial direction A and / or at least one elongation of the cylinder elevator 08 in the circumferential direction B.
- the latter variant has the advantage that the required tensile stress FZ in the axial direction A is substantially lower than if previously the tensile stress FZ in
- Circumferential direction B has been applied. Because the application of the tensile stress FZ in the circumferential direction B causes additional frictional forces, the application of the
- Hinder tensile stress FZ in axial direction A leads to a higher accuracy when compensating for a printing material change in one
- either an expansion of the cylinder elevator 08 in the circumferential direction B or a change in this speed ratio takes place, depending on the required adjustment.
- the necessary adjustment of Print image length in the circumferential direction B does not have an achievable by a maximum elongation of the cylinder elevator 08 in the circumferential direction B adaptation of
- Print image length goes, then takes place exclusively by means of the expansion in the circumferential direction B.
- For larger necessary adjustments in the circumferential direction B then takes place instead preferably only a change in this speed ratio.
- the decision is preferred under
- the drive of the forme cylinder 07 is controlled so that within one revolution of the forme cylinder 07, a change in the speed ratio between the first angular velocity of the
- the adjustment is achieved only if the adaptation can be achieved by a maximum elongation of the cylinder elevator 08 in the circumferential direction B.
- Form cylinder 07 and the second angular velocity of the substrate leading transport body 04, in particular cylinder 04 or impression cylinder 04 takes place.
- the stretching of the cylinder elevator 08 can take place both before and during the execution of a print job, regardless of its direction.
- a print job is to be understood as the entirety of the activities required for printing. That is, stretching can occur both before and during a color run. It can also be done before or during a cleaning of the forme cylinder 07 or the inking unit 09.
- the stretching can also take place before or during the processing, in particular printing, ie before or during the contact of the transfer cylinder 06 or the cylinder elevator 08 with the substrate. If the stretching is to take place before the printing, the printing is preferably preceded by a previous test print, on the basis of which the required setting values are manually or automatically, for. B. by means
- the inking rollers 10 and / or the rollers are preferably in contact with the forme cylinder 07 and / or the cylinder elevator 08 with a corresponding rotary body such as the transfer cylinder 06 or the impression cylinder 04
- Damping roller 13 is not placed with the trained as a printing plate 08 cylinder elevator 08, for example, so that the color profile in the inking unit 09 is maintained.
- Sheet printing machine is transported, as shown in FIG. 1 i. V. m. the
- Sheet 31 due to various printing process related effects a deformation in its geometry, d. H. in its geometric dimensions. Under a
- Sheet 31 is understood here as a sheet of paper or cardboard with a minimum size of DIN A3. Smaller format sizes are commonly referred to as “sheets.” For example, such a signature 31 will be subject to compression in the printing process in each of his pressure gap between two cooperating
- Printing process applied to the relevant sheet 31 ink and optionally used in the printing process dampening contribute to the relevant sheet 31 moisture, which in a paper or cardboard, d. H. consisting of fibers printed sheet 31 to an at least partial, related to an axial direction of the cooperating printing cylinder cylinder width expansion and
- Geometry-related deformation of a printing sheet 31 results due to the aforementioned printing process-related effects can not be compensated by a correct register-containing arrangement of one or more involved in the printing process printing plates 08. Therefore, there is a need for a method for solving this problem for adapting at least one length of a surface to be formed on a plurality of printed sheets 31 of the same size by printing technology, wherein this surface is preferably to be rectangular in each case. This area forms z. B. a trained on the relevant sheet 31 or at least trainees print image 32nd
- Such a method may provide for carrying out the following method steps:
- the respective on the respective sheet 31 in each case the same size
- trainee surface is respectively formed during transport of this sheet 31 by the sheet-fed press, with the length to be adjusted or one of the lengths to be adapted to the concerned printing technology
- trainees surface extending longitudinally or transversely or obliquely to the transport direction of the relevant sheet transported by the sheet-fed printing press 31.
- Coordinate system each set as a reference point 41 for the adaptation of the at least one length of the printing technology trainee surface. From a recording device 60 connected to the arithmetic unit, at least one point belonging to the printing-technically constructed surface of this printed sheet 31 is detected by a printed sheet 31 having a printed surface 31 as a measuring point 42.
- a respective position of the at least one detected measuring point 42 is determined.
- Sheet is from the arithmetic unit an actual distance between the respective Position of the at least one of the respective sheet 31 detected measuring point 42 and the respective position of the at least one selected reference point 41 determined.
- the determined actual distance is compared by the arithmetic unit with that desired distance, which has the position corresponding to the relevant detected measuring point 42 in the area underlying the definition of the position of the reference point 41 from the position of the relevant reference point 41.
- the arithmetic unit adjusts depending on a determined deviation of the actual distance from the desired distance by an output of a control signal to the at least one further printed sheet 31 the respective surface pressure engineering device each forming at least one length of the respective at least another sheet 31 each equal in size to be formed by printing technology.
- the respective position of the at least one reference point 41 is excluded from the adaptation of the at least one length of the relevant surface.
- this method are connected by the with the control computer or with the arithmetic unit
- Detection device 60 detected in a same detection process multiple measurement points 42 simultaneously. These measuring points 42 may be distributed basically arbitrarily on the printed sheet 31, but it is advantageous, they each z. B. in an edge region of the relevant sheet 31 to capture. In the case of several of the
- Detection device 60 detected measuring points 42 determines the arithmetic unit between two spanned by these measuring points 42, emanating from their common reference point 41 angle as an actual angle and compares the determined actual angle with one for these two measuring points 42 in conjunction with the relevant reference point 41st provided target angle and fits in case of impermissible
- the arithmetic unit preferably determines a different reference point 41 for at least one of these measuring points 42 than for at least one other of these measuring points 42.
- the definition of a plurality of reference points 41 for the same printed sheet 31 in the case of a plurality of the detection device 60 With respect to the respective printed sheet 31 detected measuring points 42 gives the possibility to locally compensate for deformations of a printing sheet 31.
- a first initiated by the arithmetic unit action consists for. B. in that in a plurality of printing units 01; 02; 03 sheet-fed printing machine a drive, in particular a direct drive DA of a first plate cylinder 07 this
- Sheet-fed printing machine relative to the respective drive, in particular the respective direct drive DA at least one other, d. H. second plate cylinder 07 of this sheet-fed printing machine is driven such that by a positive or negative acceleration of the at least one plate cylinder 07 concerned a set due to the deformations of the sheet 31 error compensating offset in the rotation angle between the first plate cylinder 07 and the at least one other, d. H. second plate cylinder 07, wherein this offset in the angle of rotation between the first plate cylinder 07 and the at least one other, d. H. second
- Plate cylinder 07 z. B. only for a piece of bow, this elbow is smaller than a full revolution of the plate cylinder 07 concerned.
- the rotation of the relevant plate cylinder 07 is impressed on the set as a result of the deformations of the sheet 31 error compensating modulation.
- a second triggered by the arithmetic unit action can, for. B. in a compensating due to the deformations of the sheet 31 error compensated
- Axial adjustment of at least one of the plate cylinder 07 involved in the printing process exist.
- Example is that the arranged on a plate cylinder 07 printing plate 08 in the circumferential direction B of this plate cylinder 07 and / or in the axial direction A in particular by means of a displacement of the at least one clamping element 20 is stretched or compressed.
- the deformations of the printing sheet 31 form the surface to be formed by printing technology z.
- the adaptation of the at least one length of the relevant surface is carried out as a function of at least one process parameter, wherein the process parameter is a distribution of a surface coverage with at least one printing ink on the relevant sheet 31 or the printing speed of the sheet-fed press or a torque a main drive of the sheet-fed printing press or a torque of a direct drive DA of a plate cylinder 07 of the sheet-fed printing machine or a pressure in one of the respective printed sheet 31 traversed pressure gap between two
- Sheet-fed press or a coefficient of dampening of the material of the relevant sheet 31 or a moisture difference in the relevant sheet 31 between their stack in a sheet feeder and in a sheet delivery of the sheet-fed press concerns.
- the adaptation of the relevant length of the printing technology concerned Surface and / or the adjustment of the actual angle to the target angle is usually performed in a current production of the sheet-fed press.
- Fig. 6 shows an example of a printing sheet 31 with a pressure in the process z. B. rectangular shaped or at least trainees surface 32, said surface 32 z. B. represents a printed image 32.
- a Cartesian coordinate system based on the sheet-fed printing press applies, the origin 33 of which is orthogonal to the transport plane of the printing sheet 31, along the
- Transport path of this sheet 31 extending plane is placed, said plane at the position of a half axial usable for the printing process length of a printing cylinder, for. B. a counter-pressure cylinder 04 or a forme cylinder 07 or a transfer cylinder 06 of this sheet-fed press is arranged. An advancing in the transport direction end of this sheet 31 is during his
- Sheet-fed press related coordinate system at least one reference point 41 set. This is done by one of the three method steps mentioned below, namely in that either in a preview data displayed on a display device connected to the arithmetic unit from the on the respective Sheet 31 each printing technology trainee surface 32 or in a displayed on the connected to the computing unit display device photographic
- the respective position of the at least one reference point 41 is assumed to be in need of correction and is therefore preferably excluded from the adaptation of the at least one length of the relevant surface 32.
- Arithmetic unit determines in the related to the sheet-fed press
- Coordinate system a respective position of the at least one detected measuring point 42. If by the detection device 60 across a plurality of sheets 31 each time the same measuring point 42 is detected, the computing unit determines z. B. not only the
- relevant measured point 42 formed average of a further evaluation, z. B. is based on a distance calculation for the relevant reference point 41.
- the determined actual distance s1; s2 is compared by the arithmetic unit with the nominal distance that the position corresponding to the respective detected measuring point 42 has in the surface 32 defining the position of the reference point 41 from the position of the relevant reference point 42.
- the nominal distance is z. B. provided by the prepress or by a responsible for controlling the printing process production planning system.
- the arithmetic unit fits in dependence on a deviation of the actual distance s1 determined by it; s2 from the nominal distance by an output of a preferably electrical control signal to a on at least one further printed sheet 31, the respective surface 32 printing technology forming device, d. H.
- the arithmetic unit preferably also determines an angle ⁇ between two points defined by these measuring points 42 and originating from their common reference point 41 as an actual angle and compares the determined actual angle with one for these two measuring points 42 in conjunction with the relevant
- Control of the printing process competent production planning system provided target angle.
- the arithmetic unit indicates the control signal to be output to the device 32 that forms the respective surface 32 on at least one further printed sheet 31 in order to minimize this deviation.
- Adjustment of the actual angle to the desired angle i. d. R. executed in an ongoing production of the sheet-fed press.
- a method for adapting a cylinder elevator 08 to a change of substrate in printing machines can be carried out, in which the printing machine has at least two printing units 01; 02; 03, each printing unit 01; 02; 03 comprises a printing forme cylinder 07 with at least one clamping device 15 for clamping a cylinder elevator 08 and a printing material-carrying cylinder 04, wherein the clamping device 15 has a clamping member 18 or a clamping element 18 which is adapted to adapt the cylinder elevator 08 to the printing material change in the circumferential direction B of the plate cylinder 07 is shifted and / or in several clamping segments 20 and
- Rotation body takes place.
- a rotational body z. B. a blanket cylinder 06, an inking roller 10 or a dampener roller 13 is used.
- Cylinder elevator 08 provided on a substrate change in printing machines, wherein the printing machine at least two printing units 01; 02; 03, each printing unit 01; 02; 03, a printing plate cylinder 07 and a printing material-carrying Cylinder 04 comprises and on the respective pressure cylinders 07 each at least one cylinder winding 08 is clamped, such that the respective plate cylinder 07 each having a cylinder channel 14 with a clamping device 15 associated therewith, such that the respective clamping device 15 has at least one clamping member 18, 31 , by which the respective cylinder elevator 08 in the circumferential direction B and in the axial direction A of the respective plate cylinder 07 is variable and the respective plate cylinder 07 has a drive for generating a differential angle between the respective plate cylinder 07 and the druckstoffestden cylinder 04 during the circulation of the respective Compression-molded cylinder 07 is formed, wherein the clamping members 18, 31 are remotely adjustable.
- At least one of the clamping members 18, 31 in the circumferential direction B of the respective plate cylinder 07 is displaceable, wherein at least one of the clamping members 18, 31 is divided into clamping segments 20, wherein the clamping segments 20 are starting from the center of each cylinder elevator 08 each sideways displaced.
- a device for adapting a printed image and / or a cylinder elevator 08 is provided to a substrate change in printing machines, wherein the printing machine at least two printing units 01; 02; 03, each printing unit 01; 02; 03 comprises a printing forme cylinder 07 with at least one clamping device 15 for clamping a cylinder elevator 08 and a cylinder 04 which feeds the printing material, wherein the clamping device 15 comprises a clamping member 18 divided into a plurality of clamping segments 20; 31, the clamping segments 20 for changing the dimension of the respective cylinder elevator 08 in the axial direction A of the respective printing forme cylinder 07 are displaceable and the respective plate cylinder 07 has a drive for generating a differential angle between the respective plate cylinder 07 and the druckstoffestden cylinder 04 during the Circulation of the relevant printing forme cylinder 07 is formed, wherein the clamping segments 20 at least one activatable force generating element 35 is associated. That's it
- Force generating element 35 z. B. as a hydraulic means or as a pneumatic Means, e.g. B. as a hose, or as an electromechanical means, for. B. designed as an electric motor.
- a device for adapting a printed image and / or a cylinder elevator 08 to a printing material change in printing presses can be provided, wherein the printing press at least two printing units 01; 02; 03, each printing unit 01; 02; 03 each have a printing plate cylinder 07 with at least one
- Clamping device 15 for clamping a cylinder elevator 08 and a
- printing material-carrying cylinder 04 includes, wherein the clamping device 15 a
- Tensioning member 18, 31 which, for adjusting the cylinder elevator 08 to the
- Substrate change in the circumferential direction B of the relevant plate cylinder 07 is displaced and divided into a plurality of clamping segments 20 which are displaceable in the axial direction A of the respective plate cylinder 07, wherein the clamping segments 20 at least one activatable force generating element 35 is assigned.
- the force generating element 35 z. B. as a hydraulic means or as a pneumatic means, for. B. as a hose, or as an electromechanical means, for. B. designed as an electric motor.
- Cylinder elevator 08 to be provided on a substrate change in printing machines, the printing machine at least two printing units 01; 02; 03, each printing unit 01; 02; 03 each have a printing plate cylinder 07 with at least one
- Clamping device 15 for clamping a cylinder elevator 08 and a
- clamping device 15 comprising printing material-carrying cylinder 04, wherein the clamping device 15 has at least one clamping member 18 which is formed so that the cylinder elevator 08 is remotely adjustable by this, such that the clamping member 18 in
- Circumferential direction of the respective printing forme cylinder 07 is displaceable, wherein for displacing the clamping member 18 in the circumferential direction, a pneumatic means, for. B. a hose is provided. Furthermore, with the previously described several, arranged in series printing units 01; 02; 03 and / or Lackwerke having processing machine, for. B.
- Printing machine in particular sheet-fed printing machine, a method operable in which, while the sheet-fed printing machine executes a current print job, at least one printing unit 01; 02; 03 / Lackwerk from the composite of the current print job exporting printing 01; 02; 03 / Lackwerke is spun off and on this printing 01; 02; 03 / Lackwerk a follow-up order is prepared, such that in a control computer both the order-related data of the directly on this
- Printing unit 01; 02; 03 / Lackwerk previously executed print job as well as the on this printing 01; 02; 03 / Lackwerk following print order are provided that the divergence of the order-related data is determined that on this
- the printing unit 01; 02; 03 / Lackwerk is prepared on the basis of the calculated values for the subsequent order and that subsequently this printing unit 01; 02; 03 / coating unit is integrated to execute the follow-up order.
- the control computer can store both the values for the zonal area coverage of the printing unit 01; 02;
- the divergence of this data serves as the basis for the calculation of the optimal sequence and the duration of the processing steps for the preparation of the follow-up order.
- a time of the beginning of the preparation of the follow-up order is z. B. calculated so that the beginning of the preparation of the subsequent order is determined so that at the time of incorporation of the printing unit 01; 02; 03 / Lackwerks the preparation of the follow-up order
- displacement means displacement spindle, hollow body, displacement hose Support element, hollow body, hose hose, hose
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Printing Methods (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17172333.1A EP3254854B1 (de) | 2015-03-18 | 2016-03-10 | Verfahren zum anpassen mindestens eines zylinderaufzugs an eine bedruckstoffänderung in einer druckmaschine |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015204857.8A DE102015204857A1 (de) | 2015-03-18 | 2015-03-18 | Verfahren zum Anpassen mindestens eines Druckbildes und/oder mindestens eines Zylinderaufzugs an eine Bedruckstoffänderung in einer Druckmaschine |
| PCT/EP2016/055072 WO2016146461A2 (de) | 2015-03-18 | 2016-03-10 | Verfahren zum anpassen mindestens eines druckbildes und/oder mindestens eines zylinderaufzugs an eine bedruckstoffänderung in einer druckmaschine |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17172333.1A Division EP3254854B1 (de) | 2015-03-18 | 2016-03-10 | Verfahren zum anpassen mindestens eines zylinderaufzugs an eine bedruckstoffänderung in einer druckmaschine |
| EP17172333.1A Division-Into EP3254854B1 (de) | 2015-03-18 | 2016-03-10 | Verfahren zum anpassen mindestens eines zylinderaufzugs an eine bedruckstoffänderung in einer druckmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3204229A2 true EP3204229A2 (de) | 2017-08-16 |
| EP3204229B1 EP3204229B1 (de) | 2019-06-26 |
Family
ID=55521716
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17172333.1A Not-in-force EP3254854B1 (de) | 2015-03-18 | 2016-03-10 | Verfahren zum anpassen mindestens eines zylinderaufzugs an eine bedruckstoffänderung in einer druckmaschine |
| EP16709056.2A Active EP3204229B1 (de) | 2015-03-18 | 2016-03-10 | Verfahren zum anpassen eines druckbildes an eine bedruckstoffänderung in einer druckmaschine |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17172333.1A Not-in-force EP3254854B1 (de) | 2015-03-18 | 2016-03-10 | Verfahren zum anpassen mindestens eines zylinderaufzugs an eine bedruckstoffänderung in einer druckmaschine |
Country Status (4)
| Country | Link |
|---|---|
| EP (2) | EP3254854B1 (de) |
| CN (1) | CN107848293B (de) |
| DE (1) | DE102015204857A1 (de) |
| WO (1) | WO2016146461A2 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017203491B4 (de) | 2017-03-03 | 2024-04-18 | Koenig & Bauer Ag | Plattenzylinder |
| DK3738773T3 (da) | 2019-05-09 | 2022-10-31 | Heidelberger Druckmasch Ag | Apparat til udmåling af forhøjninger på overfladen af et omdrejningslegeme |
| EP3838595B1 (de) | 2019-12-17 | 2023-04-26 | Heidelberger Druckmaschinen AG | Verfahren zum betreiben einer rotationsdruckmaschine |
| DE102021125071A1 (de) * | 2020-10-22 | 2022-04-28 | Heidelberger Druckmaschinen Aktiengesellschaft | Vorrichtung zum Vermessen von Erhebungen der Oberfläche eines Rotationskörpers |
| EP3988313B1 (de) * | 2020-10-22 | 2024-07-03 | Heidelberger Druckmaschinen AG | Vorrichtung zum vermessen von erhebungen der oberfläche eines rotationskörpers und system |
| DE102021118031A1 (de) * | 2021-07-13 | 2023-01-19 | Koenig & Bauer Ag | Bearbeitungsmaschine sowie Verfahren zur Einstellung einer Bearbeitungslänge eines Formgebungsaggregats einer Bearbeitungsmaschine |
| CN113658237B (zh) * | 2021-08-24 | 2024-04-26 | 凌云光技术股份有限公司 | 一种套准结果校正方法及装置 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4128994A1 (de) * | 1990-12-31 | 1992-07-02 | Heidelberger Druckmasch Ag | Klemm- und spanneinrichtung |
| DE4235393A1 (de) | 1992-10-21 | 1994-04-28 | Heidelberger Druckmasch Ag | Registerverstelleinrichtung an einer Bogendruckmaschine sowie Verfahren zur Registerverstellung |
| DE4244279C2 (de) * | 1992-12-28 | 1995-05-18 | Heidelberger Druckmasch Ag | Druckformkorrektureinrichtung zum Ausgleich von Druckträgerdehnungen |
| DE19623224C1 (de) | 1996-06-11 | 1997-09-11 | Roland Man Druckmasch | Antrieb für eine Druckmaschine |
| DE10009667B4 (de) * | 1999-03-19 | 2004-06-03 | Heidelberger Druckmaschinen Ag | Spanneinrichtung zum Aufspannen von Druckformen |
| DE10352619B4 (de) | 2003-07-11 | 2012-09-27 | Koenig & Bauer Aktiengesellschaft | Verfahren und Vorrichtung zur Beeinflussung des Fan-Out-Effektes |
| DE102005013360B4 (de) * | 2005-03-23 | 2018-09-13 | Manroland Web Systems Gmbh | Verfahren zum Positionieren von Druckplatten auf Zylindern einer Druckmaschine |
| US20080148974A1 (en) * | 2006-12-22 | 2008-06-26 | Heidelberger Druckmaschinen Ag | Printing Press with Printing Plate Manipulation Device |
| DE102007057455B4 (de) | 2006-12-22 | 2013-11-21 | Heidelberger Druckmaschinen Ag | Druckmaschine mit Druckplattenmanipulationseinrichtung |
| DE102008023728A1 (de) | 2008-05-15 | 2009-11-19 | Koenig & Bauer Aktiengesellschaft | Vorrichtung zur Korrektur der Lage einer Druckplatte |
| DE102008002681A1 (de) * | 2008-06-26 | 2009-12-31 | Koenig & Bauer Aktiengesellschaft | Anzeigevorrichtung zur Anzeige zumindest einer Verwendung einer Druckform an ihrem Einsatzort in einer Druckmaschine |
| EP2535188B1 (de) * | 2011-06-17 | 2013-12-25 | Lehner GmbH | Montagevorrichtung, Druckmaschine und Verfahren zum Aufbringen einer Druckform auf einen Druckformträger |
| DE102012207103A1 (de) | 2012-04-27 | 2013-10-31 | Koenig & Bauer Aktiengesellschaft | Plattenzylinder und ein Verfahren zum Anordnen einer Druckform auf einen Plattenzylinder |
| DE102012200069A1 (de) * | 2012-01-04 | 2013-07-04 | manroland sheetfed GmbH | Rotationsdruckmaschine und Verfahren zum Betreiben derselben |
| DE102012207111B3 (de) | 2012-04-27 | 2013-05-02 | Koenig & Bauer Aktiengesellschaft | Verfahren zum Anordnen einer Druckform auf einen Plattenzylinder |
| DE102013218657A1 (de) | 2013-09-18 | 2015-03-19 | Koenig & Bauer Aktiengesellschaft | Verfahren zum Recken eines auf einen Zylinder einer Rotationsdruckmaschine aufgespannten Zylinderaufzuges |
-
2015
- 2015-03-18 DE DE102015204857.8A patent/DE102015204857A1/de not_active Withdrawn
-
2016
- 2016-03-10 EP EP17172333.1A patent/EP3254854B1/de not_active Not-in-force
- 2016-03-10 CN CN201680004758.XA patent/CN107848293B/zh not_active Expired - Fee Related
- 2016-03-10 WO PCT/EP2016/055072 patent/WO2016146461A2/de not_active Ceased
- 2016-03-10 EP EP16709056.2A patent/EP3204229B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107848293A (zh) | 2018-03-27 |
| DE102015204857A1 (de) | 2016-09-22 |
| EP3254854A1 (de) | 2017-12-13 |
| WO2016146461A3 (de) | 2016-11-17 |
| WO2016146461A2 (de) | 2016-09-22 |
| EP3254854B1 (de) | 2018-10-17 |
| CN107848293B (zh) | 2019-03-22 |
| EP3204229B1 (de) | 2019-06-26 |
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