WO2017202910A1 - Unité d'application pour machine à imprimer des feuilles - Google Patents

Unité d'application pour machine à imprimer des feuilles Download PDF

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Publication number
WO2017202910A1
WO2017202910A1 PCT/EP2017/062541 EP2017062541W WO2017202910A1 WO 2017202910 A1 WO2017202910 A1 WO 2017202910A1 EP 2017062541 W EP2017062541 W EP 2017062541W WO 2017202910 A1 WO2017202910 A1 WO 2017202910A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
drum
printing
feed table
conveyor system
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.)
Ceased
Application number
PCT/EP2017/062541
Other languages
German (de)
English (en)
Inventor
Harald Bayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland Sheetfed GmbH
Original Assignee
Manroland Sheetfed GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Manroland Sheetfed GmbH filed Critical Manroland Sheetfed GmbH
Priority to EP17725589.0A priority Critical patent/EP3463886B1/fr
Publication of WO2017202910A1 publication Critical patent/WO2017202910A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/08—Combinations of endless conveyors and grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/002—Apparatus or machines for carrying out printing operations combined with other operations with means for applying specific material other than ink
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B41F21/05—In-feed grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B41F21/06—Suction-operated grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/12—Adjusting leading edges, e.g. front stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/14—Adjusting lateral edges, e.g. side stops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/085—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers by combinations of endless conveyors and grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/08—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to incorrect front register
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H9/00—Registering, e.g. orientating, articles; Devices therefor
    • B65H9/10—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position
    • B65H9/101—Pusher and like movable registers; Pusher or gripper devices which move articles into registered position acting on the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2217/00—Printing machines of special types or for particular purposes
    • B41P2217/10—Printing machines of special types or for particular purposes characterised by their constructional features
    • B41P2217/11—Machines with modular units, i.e. with units exchangeable as a whole
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4433—Moving, forwarding, guiding material by acting on surface of handled material by means holding the material
    • B65H2301/44331—Moving, forwarding, guiding material by acting on surface of handled material by means holding the material at particular portion of handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/30—Chains
    • B65H2404/34—Gripper bars bridging at least two chains running synchronously and parallely
    • B65H2404/341—Details of driving or return drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1311—Edges leading edge

Definitions

  • the invention relates to a placement unit for a sheet-fed printing press according to the preamble of claim 1.
  • Docking units for singling and targeted tactual feeding of sheets to a working process are known in the context of sheet-fed rotary printing presses.
  • Sheet conveying takes place via impression cylinders and transfer drums.
  • the printing process operates e.g. after the flexo or offset printing process.
  • sheet coating machines such as painting machines.
  • the application and alignment of the printed matter is carried out in equipment for sheet-fed equipment, the sheets separated from a pile of sheets are fed as a shingled stream via a belt table.
  • the scale flow of the printed sheets can be conveyed by means of suction belts via a suction belt table.
  • a sheet system usually has side marks that can work with pneumatic conveyors, and there are front and top brands provided.
  • these alignment means are usually provided with a format adjustment.
  • the sheetfed also includes sensory devices for controlling the position of leading edges, side edges, skew or multiple layers of the signatures. With the help of sensory devices, system barriers act to block printed sheets in the event of inaccuracies in sheet transport.
  • Subordinate to the sheet system are oscillating pregrippers, which interact with rotating transfer drums.
  • the substrate undergoes abrupt changes of direction on its conveying path and undergoes considerable delays and accelerations.
  • a landing unit in a modular printing machine system which combines a printing unit with the printing cylinder of a printing unit. acting first double-sized investment drum with circumferentially two gripper systems.
  • This is a second single-sized plant drum in the sheet conveying direction arranged vertically offset in height.
  • a third, single-size feed drum precedes the second in height and is connected to a tilted feed table for sheet transfer.
  • the sheet acceleration system on the high pile feeder is used to process cardboard, while the press is suitable for cardboard and paper.
  • a normal feeder For paper processing, a normal feeder is used, which has to be exchanged completely for a high-pile feeder during carton processing.
  • the application unit is very expensive due to the large number of drums. Due to the many sheet transfers and curvature of the drums, the sheet run is adversely affected. Particularly disadvantageous is the replacement of the aggregates when using a high-pile feeder.
  • This sheet feeder shows a rotating pregripper drum inclined in the conveying direction upstream feed table.
  • the pre-gripper drum has two diametrically arranged gripper systems that can dive into the drum body.
  • the sheet feed takes place with a transfer drum connected between the pregripper drum and a printing cylinder.
  • the pre-gripper drum is directly associated with a printing cylinder. Front lays are pivotally integrated in the feed table from below.
  • a rotating pregripper with two gripper systems upstream of which is a delivery table in the conveying direction, and a downstream conditioning drum is arranged downstream of it.
  • the pre-gripper rotates at half the speed of the feed drum.
  • the gripper systems perform on the pre-gripper a swinging motion about the pre-gripper axis or about a shaft mounted eccentrically to the pre-gripper axis. A partial circumference of the pre-gripper drum protrudes beyond the level of the feed table, which is unfavorable for the bowing.
  • a placement unit for a sheet processing machine in a sheet processing machine with a method for Creating sheet known which is designed for attachment to a sheet processing plant. It shows a feed table and arranged at the printing unit side end of the feed table gripper system. The gripper system feeds each sheet directly to a transfer cylinder of the sheet processing plant.
  • DE 199 33 304 A1 discloses a laying unit for a sheet-processing machine.
  • An investment drum, a feed table and an investor are combined in one module.
  • the axis of the double-sized investment drum of a horizontal plane formed by the axes of all printing cylinders.
  • Gripper systems pivotally mounted on the abutment drum consist of a gripper shaft, grippers arranged on the gripper shaft and gripper loading strips and front marks arranged thereon.
  • the effort to supply air to suction belt tables for fans, a multi-chamber design and an oblique arc correction via suction belts should be eliminated.
  • the orientation of the sheet should be done in the conveying movement during transport from the sheet separation in the sheet feeder serving suction head to a counter-pressure cylinder in the first printing unit of the sheet-fed press. This would considerably more time to align the sheets before the first printing unit of the sheet-fed press available.
  • the invention is therefore based on the object to provide a landing unit for a sheet gen kausmaschine of the type described above, which avoids the disadvantages mentioned, which in particular allows a simple modular structure and allows improved sheet management of the sheet.
  • An application unit for feeding separated sheets to a sheet-fed rotary printing press is provided with one or more printing units and / or coating modules, which are equipped with a substructure of respective double-sized transfer drums and counter-pressure cylinders.
  • the application unit has a sheet feeder, a conveyor unit, a feed table and a single- or double-sized feed drum, which is assigned to a sheet-guiding drum of a first printing unit of the sheet-fed rotary printing press.
  • the conveyor unit is designed as an endless conveyor system connecting a lower contact drum to an upper contact drum.
  • the upper investment drum is assigned to the sheet feeder.
  • the lower bearing drum is formed double-sized and formed from the drum body of a delivery drum.
  • the lower bearing drum is further arranged at the bearing point of a transfer drum of the first printing unit of the sheet-fed rotary printing press.
  • the upper abutment drum is designed with a single-sized diameter.
  • the conveyor system is designed as an endless chain conveyor with rows of gripper-carrying gripper systems, wherein the gripper systems are moved by a transport drive via conveyor chains and wherein the conveyor chains lead the gripper systems on the upper drum and the lower conditioning drum.
  • the upper abutment drum is assigned to a feed table and the feed table is assigned to the sheet feeder. It can advantageously be provided that the feed table is assigned to the sheet feeder in the amount of the upper edge of a sheet pile received in the sheet feeder.
  • a suction head arranged in the sheet feeder above the sheet stack for sheet separation is formed directly on the feed table to convey the sheet separated by the sheet stack.
  • suction head, the feed table, the collision drum and the conveyor system are designed so that each separated sheet is inserted directly from the stack of sheets in grippers, which are carried by moving on the conveyor system gripper systems in the open state.
  • An advantageous development provides that the upper abutment drum is assigned to the feed table near the edge of the sheet stack and the area of the conveyor system adjoining the upper abutment drum extends substantially parallel to the extent of the feed table in the conveying direction.
  • the conveyor system is assigned a sheet guiding device arranged essentially on the underside of the conveyor system parallel to its conveying plane.
  • An advantageous development provides that the conveyor system in the field of sheet conveying from the feed table to the sheet guiding device and / or in the sheet discharge from the sheet guiding device for transferring the sheet to a sheet-guiding cylinder of the first printing mechanism associated mechanical devices and / or pneumatic type to avoid Movements of the sheet are provided, which point away from the sheet guiding device.
  • An advantageous development provides that the upper investment drum, the lower investment drum, the feed table and the sheet feeder with the suction head as a module are formed and that a process interface to a downstream, designed as a module printing unit or paint module between the lower drum and the downstream counter-pressure cylinder of the printing unit or paint module is defined.
  • one or more measuring systems are associated with sheet position sensors adjacent to one another for the position detection of the sheet-fed rotary printing press to be fed to the lower and / or the upper feed drum and / or the conveyor system, which are coupled to an evaluation unit and a controller are, wherein the controller is operatively connected to an acting on the conveyor system actuator for position correction of gripper systems.
  • An advantageous development provides that the conveyor system and / or the suction head of the sheet feeder are each provided with an independent motor drive, and that the motor drives are coupled by means of the controller so with the machine control of the sheet-fed rotary printing press that transported by the conveyor system sheet in their position in the conveying direction with respect to the machine cycle of the sheet-fed rotary printing press fit exactly to the rotational movement of the sheet-fed rotary printing press can be aligned.
  • an advantageous development provides that the upper and / or the lower bearing drum are provided with one or two independent motor drives, and that the / the motor drives are coupled by means of the controller with the machine control of the sheet-fed rotary printing press.
  • An advantageous development provides that one or both conveyor chains of the conveyor system are each provided with an independent motor drive, and that the motor drives are coupled by means of the controller with the machine control of the sheet-fed rotary printing press.
  • the feed table is preferably formed with a planar guide surface in which longitudinal openings are provided, into which the gripper fingers of the gripper systems of the conveyor system, which are opened when they enter the upper feed drum, can dip into.
  • the conveyor table in the conveying direction it is advantageous that the separated printed sheets fed from the sheet stack reach their alignment marks on a greatly shortened conveying path and can be accelerated immediately to full speed.
  • the length of the feed table carrying the sheet to be fed can be greatly shortened, and in case of failures such as a sheet fed sheet stopper, less waste is generated. In the optimal case, this can only be a single signature.
  • the printed sheets can be retained in the sheet feeder by means of an attachment lock. As a result, less or no waste accumulates due to press sheets, which remain after known manner in stoppers on the belt table and therefore must be removed from the investment area of the sheet feeder, making them useless.
  • the orientation of the sheet can be done during transport between the feeder stack and the first printing unit. Axially, ie transversely to the paper direction, the so-called side registration is set by page orientation. The orientation with respect to the slant arc and the position of the leading edge is controlled by the forward movement of the gripper systems.
  • a system with sheet position sensors in the course of the conveyor system connected to a closed loop ensures that early, late, double and oblique sheets are already recognized on the investment sheet and can be excluded from the takeover in the sheet transport by means of the conveyor system.
  • a single drive of such trained as a conveyor unit sheet feeder in conjunction with the sheet feeder is also possible. In such an embodiment, an in-line alignment of the early / late sheets over the separately considered movement of the individual gripper systems of the conveyor unit can be omitted since the forward movement of the separated printed sheets can be influenced by means of the single drive.
  • the inventive concept of sheet feeding by means of a conveyor unit consisting of several gripper systems on a chain conveyor within a rail transport system in the sheet system between the sheet feeder and the first printing unit of a sheet-fed rotary printing machine can possibly account for the base of the printing units in so-called high-stacking machines.
  • Sheet-fed rotary printing presses are improved in this way in terms of their throughput.
  • a sheet-fed press (often referred to as plant printing unit) and the standardized sequential printing units are provided in a sheet-fed press.
  • a feed drum or as a lower feed drum a bottom transport drum known per se as a delivery drum can be used in the area of the sheet feed.
  • Carton board handling can be significantly improved and simplified, avoiding scratches and other damage through the flat sheet guide and secure sheet transport in the continuous gripper closure.
  • FIG. 3 shows a sheet transport unit in functional connection with a guide element for lateral alignment
  • a sheet-fed rotary printing machine is preferably a sheet-fed offset printing machine and has one or more printing units D1, D2 and / or coating modules. Lacquer modules are formed in the sheet-guiding area, the so-called substructure, corresponding to the printing units D1, D2 and can therefore precede, intermediate or downstream the printing units D1, D2.
  • the paint modules can also be provided several times associated with each other.
  • an upper bearing drum 3.1 and a lower bearing drum 3.2 is provided, each having sprockets, rotate about the conveyor chains 23 with attached gripper systems 8.
  • the conveyor system has between the upper and the lower bearing drum 3.1, 3.2 for guiding the conveyor chains 23 on both sides guide rails 12.
  • Printing unit D2 represents a standard version of a printing press.
  • Printing unit D2 has a transfer drum 4 in the lower area and a counter-pressure cylinder 5 downstream of the transfer drum 4 in the conveying direction R Sheet transport on. This configuration is also intended for coating modules or comparable processing units.
  • the impression cylinder 5 is associated with a blanket cylinder 7 and a forme cylinder 6.
  • Each form cylinder 6 are each assigned a sheetfed and a dampening unit in sheetfed offset presses (not shown here).
  • the printing cylinder is assigned a form cylinder with a paint supply device instead of a blanket cylinder.
  • Lacquer modules can also be designed as multifunctional modules for carrying out special processing methods (stamping, perforating, numbering, embossing, film transfer, lamination, digital imprinting).
  • each printing unit D2 following the first printing unit D1 the respective counter-pressure cylinder 5 and the preceding transfer drum 4, starting from the single-sized blanket 7 and forme cylinder 6, are twice as large and each have two rows of grippers 22 for the sheet transport.
  • the space of a transfer drum 4 (printing unit D2) is occupied by a sheet conveying device of a laying unit 19, in which the first printing unit D1 is connected to the sheet feeder 1.
  • a lower conditioning drum 3.2 in the printing unit D1 two possibilities for the integration of a lower conditioning drum 3.2 in the printing unit D1 are indicated. It can be used in the design as a simple-sized sheet guiding drum in place and in storage of a cooperating in a known manner with a pre-gripper bearing drum.
  • a lower bearing drum 3.2 can be used in the design as a double-sized Bogenry- tion drum instead of a cooperating in a known manner with a boom chain conveyor jib drum in the storage of a transfer drum 4 according to printing unit D2.
  • the application unit 19 consists of a sheet feeder 1, a feed table 2 and two each based on the single-size form cylinder 6 single or double-sized icotrommeln 3.1 and 3.2.
  • the upper bearing drum 3.1 and the lower bearing drum 3.2 are by a conveyor system 1 1, the endless conveyor chains 23rd has (see Figs. 3 and 4), connected together.
  • the installation drums 3.1 and 3.2 are basically formed by a respective axis of rotation with two sprockets, over which the conveyor chains 23 are guided.
  • the conveyor system 1 in the exemplary embodiment, five guided on the conveyor chains 23 in guide rails 12 on the ettertrommeln 3.1 and 3.2 rotating gripper systems 8.
  • the gripper systems 8 are formed as bar-shaped, over the width of the conveyor system 1 1 between the conveyor chains 23 extending sheet transport elements and each have controllable gripper 9 for detecting, holding, transporting and re-releasing the leading edge of sheet B on.
  • the feed table 2 is arranged directly following an upper edge of a sheet stack 14 held in the sheet feeder 1 in the conveying direction R and is aligned sloping inclined substantially horizontally or to a slight extent in the conveying direction R.
  • the feed table 2 upstream in the conveying direction R is the top of the sheet stack 14 associated with a suction head 13 is arranged.
  • the suction head 13 has suction devices 13.1 and other aids, not shown here, for safely separating the printed sheets B from the sheet stack 14 and for the trouble-free guiding of the separated sheets B to the feed table 2.
  • the upper bearing drum 3.1 is arranged above the feed table 2 .
  • the upper bearing drum 3.1 guided on endless chains gripper systems 8 are guided by the conveyor system 1 1 on guide rails 12 in the region of sheet transfer parallel to the feed table 2 via a transfer path Ü.
  • Each separated sheet B is thus detected by the gripper systems 8 with open-ended grippers 9 on the feed table 2 at its front edge when the sheet B was pushed by the suction head 13 in the gripper 9 and then transported away in the direction of printing unit D1.
  • a monitoring device with one or more sheet position sensors 20 is arranged below the feed table 2.
  • the position of the relevant for the determination of a conveying position edges of a just separated from the sheet stack 14 and taken over by the gripper system 8 with the grippers 9 sheet B is detected and with respect to a determination of its position with respect to the machine cycle and a Determining its position with respect to the orientation during transport in the conveying direction R and evaluated in the plane of the sheet B transversely to the conveying direction R.
  • a sheet guiding device 21 is arranged approximately parallel to the sheet transport path.
  • the sheet guide device 21 may therefore be provided with means for tightening the sheet B, with a protection of the surface of the usually still unprinted sheet B is important.
  • Pneumatic guide means can enable non-contact sheet guiding.
  • further sheet position sensors 20 can be arranged in order to monitor the position of the sheet edges in the gripper system 8 and also relative thereto during the sheet transport.
  • a target-actual comparison of the sheet position is made in real time with a calculated from specifications of the sheetfed offset press expected sheet position at the time of transfer.
  • the feed table 2 is arranged horizontally, so that the printed sheet B separated by the suction head 13 on the upper side of the sheet stack 14 in the sheet feeder 1 can be detected by a gripper system 8 in the area of the feed table 2 in the transfer line Ü. This takes place in a continuous horizontal conveyor plane to the incoming from the upper drum 3.1 and with open down grippers 9 incoming gripper systems 8.
  • the upper bearing drum 3.1 is arranged as shown in Fig. 1 in the application unit 19 above the feed table 2, that its conveying plane tangent to the upper bearing drum 3.1 and parallel to the path of movement of the corresponding incoming from the upper bearing drum 3.1 gripper system 8.
  • the concept of the application unit 19 allows variable configurations for the formation of the conveying paths or for the use of existing assemblies.
  • the installation drums 3.1 and 3.2 can accordingly be based on the single-sized forme cylinder 6, either single or double in size. This can be selected depending on the space requirements and the demands on materials to be processed.
  • the lower bearing drum 3.2 can be arranged with its axis of rotation (aligned) in or offset in height (laterally offset parallel) above an extension plane, which is formed by the mutually aligned axes of all impression cylinders 5 of the printing units D1, D2
  • At least the lower abutment drum 3.2 can be designed as a double-sized sheet guiding drum for simultaneously guiding two gripper systems 8. It then has a favorable for the guidance of stiffer materials for printing larger diameter, so that the material of the sheet to be transported B is not bent so much and thus easier to pass to the impression cylinder 5 of the first printing unit D1.
  • the problem of the curvature of the printed matter does not exist, since the recording of the printed sheets B in the grippers 9 of the gripper systems 8 always after the draining of the gripper systems 8 from the curved guide track of the upper bearing drum 3.1 and in the area the flat feed table 2 takes place.
  • the printed sheets B are therefore transported by the gripper systems 8 and thus on a relatively level path only after the first abutment drum 3.1.
  • the transition 2.1 can be made continuous, so that the running at machine speed from the feed 2 sheet B are not suddenly deflected in the downward movement of the sheet guiding device 21, whereby a whip effect of the out-of-sheet end can be avoided. Furthermore, from the inside of the conveyor system 1 1 in the region of the transition 2.1 a blowing device or in the region of the transition 2.1 on the sheet guiding device 21, a suction device with effect be provided on the expiring sheet B and to produce a level guide the sheet B.
  • a device for the transfer can be arranged at the transition from the horizontal to the downward movement.
  • pneumatic suction or blast air or mechanical the printed sheet B gentle guide elements are suitable.
  • a device for securing the sheet movement at the transition from the orbital motion in the lower feed drum 3.2 may be arranged on the orbital motion with impression cylinder 5.
  • pneumatic suction or blowing air devices or also mechanical pressure elements B gentle guide elements are suitable.
  • the installation drums 3.1 and 3.2 and the sheet guiding device 21 is a measuring system with at least one sheet position sensor 20, for detecting the position (actual value) of the gripper systems 8 in the upper feed drum 3.1, on the sheet guide device 21 and the lower feed drum 3.2 arcuate sheet B adjacent.
  • the position detection may refer, for example, to at least one side edge and / or the front edge of the arcuate printed sheet B.
  • the Bogenlage- sensors 20 are circuit-coupled with an evaluation unit for a target-actual comparison and a control, such that the gripper systems 8 in a training transversely to the conveying direction R is laterally movable.
  • the functional connection of sheet position sensors 20, evaluation unit and control such that a lateral movement of the gripper system 8 can be realized and / or at an inclined position of the sheet B. to the conveying direction R whose positional offset recognizable and the sheet B can be aligned by the in or against the conveying direction R obliquely adjustable gripper system 8 in the desired position.
  • the sheet feed sensors 20 assigned to the feed table 2 and / or the sheet guiding device 21 and / or the feed drum 3.1 and 3.2 can be used together or individually.
  • each to be processed sheet B is singled using known means with a suction head 13 from the top of the sheet stack 14 in the machine cycle of the sheetfed offset press and continuously accelerated in the conveying direction R up to machine speed.
  • the resulting forward movement of the sheet B is pushed onto the feed table 2 and can already be examined at this time, preferably by means of correspondingly provided sensors in terms of sheet position, the presence of multiple sheets out or arc damage.
  • corresponding sensor such as the sheet position sensors 20 are arranged in corresponding areas on or below the feed table 2.
  • an orientation of the printed sheet B can preferably take place here after a side edge after metrological detection of a position actual value and a desired-actual comparison.
  • the transport takes place in the conveying direction R against leading marks, not shown here, which are arranged on the gripper system 8.
  • the gripper system 8 runs down to the feed table 2 and thereby preceded by the feed table 2 in longitudinally arranged recesses open grippers 9 the leading edge of the sheet B ahead.
  • the grippers 9 then grasp the printed sheet B when the front marks abut the sheet leading edge, and the grippers 9 and their Gripper fingers act while the sheet edge bears against the front marks, at the same time as so-called cover marks until the sheet B is fixed in the gripper closure of the gripper 9 on the gripper system 8.
  • This process with the detection of the position of the leading edge of the printing sheet B takes place in a synchronous movement between the printing sheet B and gripper system 8 substantially in parallel movement to each other at the feed table 2 in the transfer section Ü.
  • the feed table 2 to the conveyor system 1 1 can be slightly inclined, so that the distance from the surface of the feed table 2 opposite gripper pads of the gripper 9 can adapt to the feed table 2 automatically.
  • the expired by the rotating drum 3 3.1 gripper system 8 is further moved by conveyor chains 23 on the conveyor system 1 1 in guide rails 12 and pulls the fixed in the gripper closure sheet B from the feed table 2 from.
  • the printing sheet B is thereafter, while the plant drum 3.1 is constantly moved at the machine speed, transported in the conveying direction R on the Bogen Installationsein- device 21.
  • the sheet guide device 21 may be formed as a simple smooth or contoured guide surface over which the sheet B is towed without its surface would be damaged.
  • the sheet guide device 21 may be formed as a pneumatically actuated guide surface over which the sheet B is dragged under the influence of compressed air floating or taut under the influence of suction air and tightened.
  • a further or a first-time metrological detection of the printed sheets B can take place with evaluation of the sheet position in the conveying plane and a corresponding correction on the lower receiving drum 3.2.
  • the printing sheet B is transferred from the conditioning drum 3.2 in the transfer area to the count of the first printing unit D1 impression cylinder 5.
  • the printing sheet B is then transferred to the transfer drum 4 of the second printing unit D2 after the first printing and then to the following impression cylinder 5 in a known manner.
  • gantronnnnel 3.2 is designed as a double-sized drum, their drum body can be taken over by a delivery drum, as it is present at the transport end of the sheetfed offset press before the sheet delivery.
  • a corresponding storage position for the standard attachment of a transfer drum 4 is already provided, in which the delivery drum can then be used as a lower investment drum 3.2, wherein the delivery drum is advantageously already provided for the interaction with endless chain conveyor systems.
  • the main variant of the lower abutment drum 3.2 shown in FIG. 1 is intended for use with a printing unit D1 which can be used with a standard abutment drum in conjunction with a pre-gripper. While the pre-gripper is then eliminated, the lower conditioning drum 3.2 can be accommodated in the storage of the standard drum.
  • the application unit 19 is shown in a plan view.
  • the upper bearing drum 3.1 connects.
  • On the suction head 13 is an arrow view (see also Fig. 1) for designation of its transport movements in the sheet separation shown.
  • the upper bearing drum 3.1 covers the feed table 2 in the plan view largely.
  • the outline of the feed table 2 is highlighted in contrast to FIG. 1 and for better visibility in dashed representation.
  • the gripper systems 8 are shown according to the arrangement in the illustration of FIG. 1. Above the upper bearing drum 3.1, a gripper system 8.1 is shown, which is idle running against the conveying direction R on the way back from the printing unit D1 to the sheet feeder 1. Another gripper system 8.2 is shown on its way above the sheet guiding device 21 to the lower conditioning drum 3.2 in the conveying direction R. A third gripper system 8.3 is located above the lower feed drum 3.2 also empty on the way back to the sheet feeder. 1 Here are the gripper 9 symbolized.
  • the gripper systems 8, the guide rails 12 and conveyor chains 23 are components of the conveyor system 1 1 and are used to convey isolated sheet B from the feeder stack 14 to the printing cylinder 5 of the first printing unit D1. Independently controllable drive motors 25 can be provided on each side of the axis of the lower abutment drum 3.2 as the drive of the conveyor system 11.
  • a further gripper system 8 is shown in the conveying direction R, that now holds a printed sheet B and this transported in the conveying direction R to the conditioning drum 3.2.
  • two arcuate arrows are shown transversely to the gripper system 8 and an elongated arrow is shown parallel to its extension.
  • These arrows indicate that the printed sheet B can be aligned by means of the gripper system 8 both transversely to the conveying direction R, ie with respect to its side edges, as well as with respect to a pivoting of its front edge to the conveying direction.
  • the sheet alignment can take place during the sheet transport between the feed drum 3.1 to the feed drum 3.2, in the course of sheet transfer to the feed drum 3.1 or in the course of sheet transfer from the feed drum 3.2 on the impression cylinder 5.
  • Fig. 3 and 4 possibilities for sheet alignment in connection with the gripper systems 8 are shown.
  • the gripper systems 8 are in connection with guide rails 12 (see FIG. 2), wherein they are moved on conveyor chains 22 shown schematically by means of guide rollers 10 in the guide rails 12.
  • an alignment member 15 is shown, which engages from a drum-fixed and axially to a base body (axis) of a lower or upper bearing drum 3.1, 3.2 positionable articulation point when entering the gripper system 8 in a Ausrichto réelle 16 mounted there.
  • the gripper system 8 is supported by the guide rollers 10 and guided on the guide surfaces in the guide opening 16 aligned in a preselected lateral positioning. This pre-positioning occurs before and during a signature B from the grippers 9 is received on the gripper system 8 and transferred in a fixed position to another sheet transport system such as the impression cylinder 5.
  • FIG. 5 and 6 an arrangement of the application unit 19 is shown in elevation and plan view, in which case different control options for drive and sheet alignment are shown.
  • the application unit 19 can be driven synchronously with the respective elements to be driven in the conveyor system 11 and in the suction head 13 by a main drive, with the main drive associated with the sheetfed offset printing press.
  • FIG. 5 shows a representation corresponding to FIG. 1 for the description of a first independently operable drive configuration.
  • the drive of the conveyor system 1 1 takes place in the application unit 19 via at least one independently operated first drive motor 25 on the axis of the lower conditioning drum 3.2 in synchronization of the movement of the sheet B to move the sheetfed offset printing press.
  • the sheet separation takes place via an independently operated second drive motor 26 in connection with the suction head 13 in the sheet feeder 1.
  • the conveyor chains 23 and the sprockets of the upper bearing drum 3.1 are offset by the first drive motor 25 via the sprockets of the lower bearing drum 3.2 in transport movement. If both sprockets of the lower abutment drum 3.2 are coupled to a rigid axle, the position of the leading edge of the first drive motor 25 can be driven by the drive movement of the first drive motor 25
  • Sheet B are adjusted via the driven gripper systems 8 relative to the movement of the sheet-fed offset printing press. In this way, a precisely fitting sheet transfer from the gripper systems 8 on the abutment drum 3.2 to the counter-pressure cylinder 5 in relation to the machine cycle of the sheet-fed offset printing machine can be carried out in a simple manner.
  • each of the sprockets of the lower conditioning drum 3.2 is provided with its own first drive motor 25, by means of an independently controlled drive movement of the sheet B on the gripper systems 8 both in terms of the position of the sheet leading edge in the transport direction and in terms of a possible skew the sheet leading edge are aligned.
  • the signals for controlling the first and second drive motors 25, 26 with respect to the sheet position are obtained from sheet position sensors 20 in the region of the feed table 2 and the sheet guiding device 21 in the sheet movement on the gripper systems 8 and fed via data lines 27 to a controller 24.
  • the controller 24 the position data of the signatures B are then processed together with machine cycle related signals, which are supplied to the controller 24 via a machine data line 29 from a machine controller of the sheet-fed offset printing press.
  • a setpoint-actual comparison is made, which compares the measured values with position data of an expected sheet position given by the machine control.
  • FIG. 6 shows an illustration corresponding to FIG. 2 with a plan view of the application unit 19 for an alternative drive configuration. In contrast to FIG. 2, drive motors are provided elsewhere in FIG.
  • Fig. 6 the drive of the conveyor system 1 1 in the application unit 19 via two drive motors 30, 31 which act with their own drive elements (sprockets) on the conveyor chains 23 in synchronization of the movement of the sheet B to move the sheet-fed offset printing machine.
  • the gripper systems 8 and the conveyor chains 23 together with the sprockets of the lower and the upper bearing drum 3.2, 3.2 are set in transport movement.
  • the sheet separation takes place via a separate drive motor 26 in conjunction with the suction head 13 in the sheet feeder.
  • the sprockets of the lower conditioning drum 3.2 are here on the conveyor chains 23 and the drive motors 30, 31 each provided with its own drive, so that an independently controlled drive movement of the sheet B on the gripper systems 8 both in terms of the position of the sheet leading edge in the transport direction and in terms of a Oblique position of the sheet leading edge takes place.
  • the signals for controlling the drive motors 26, 30, 31 with respect to the sheet position are obtained from sheet position sensors 20.1, 20.2 in the area of the feed table 2 and the sheet guiding device 21 in the sheet movement on the gripper systems 8 and fed to a controller 24 via data lines 27.
  • the sheet position sensors 20.1 detect the position of the sheet leading edge and the sheet position sensors 20.2 detect the position of the sheet side edge.
  • the position data of the printed sheets B are then processed together with signals related to the machine cycle, which are fed to the controller 24 via a machine data line 29 from a machine controller of the sheetfed offset printing press.
  • a setpoint-actual comparison is made, which compares the measured values with position data of an expected sheet position given by the machine control.
  • Position deviations obtained from the signals of the sheet position sensors 20.1 are processed into control signals which are transmitted via control lines 28 to the drive motors 26, 30, 31 are directed to control the sheet feed to correct misalignments of the sheet B with respect to the sheet leading edge on the drive movement.
  • the sheet movement alignment movements are made from the signals of the sheet position sensors 20.2 for setting the sheet side edge in an optimal for the processing of the sheet B in the sheet-fed offset printing machine position.
  • sheet position sensors 20, 20.1, 20.2 for detecting larger edge areas or arrangement of separate devices for edge monitoring and damage in the sheet edges can be detected so that such sheets B are not fed to the sheetfed offset printing machine.
  • sheet B which were not properly isolated as so-called double or multiple arc in the area of the feed table 2 detected by a sensor device not shown here. Since these may not be fed to the sheet-fed offset printing press, they are not transported or excluded from the sheet flow ..
  • sheet B remains in sheet feeder 1. This avoids waste on sheet B, which would have to be taken from a belt table before rebooting.
  • the orientation of the sheet B can be done during the transport of the sheet B from the sheet feeder 1 to the first printing unit D1.
  • the page register in a simple and advantageous manner by moving a gripper system 8 during the transport are set, the sheet B is held during the displacement over the entire length.
  • a sensor sheet position sensors 20 with one or more control loops allows early, late, double and oblique sheets possibly already on the feed table 2 (contact sheet) to recognize and hold, if a misalignment should not be ausregelbar. For example, printed sheets B with incorrect layers do not get into the transport to the press as a source of error.
  • a first printing unit D1 and a succeeding printing unit D2 may be constituted similarly if a sheet transport drum in the form of a delivery drum is used as the lower registration drum 3.2 (feed drum).
  • the bowing is significantly improved especially for cardboard material, since damage such as scratches o. ⁇ . Eliminate by the simple bowing.
  • a belt table also as suction belt table, with suction air supply suction belts and belt rollers is eliminated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

L'invention concerne une unité d'application pour une machine rotative à imprimer des feuilles, laquelle unité est pourvue d'un ou de plusieurs groupes d'impression (D1, D2) et/ou modules de vernissage. Ces derniers sont équipés d'une infrastructure composée de tambours de transfert (4) et de cylindres de contre-pression (5) chacun de taille double. L'unité d'application est pourvue d'un margeur (1), d'une unité de transport et d'une table d'alimentation (2) et comprend des tambours d'application (3.2) de taille simple ou de taille double, qui sont associés à un tambour de guidage de feuille d'un premier groupe d'impression (D1) de la machine rotative à imprimer des feuilles. Pour améliorer la maniabilité, l'unité de transport est réalisée sous la forme d'un système de transport sans fin (11) reliant le tambour d'application inférieur (3.2) à un tambour d'application supérieur (3.1). Le tambour d'application supérieur (3.1) est en revanche associé au margeur (1).
PCT/EP2017/062541 2016-05-25 2017-05-24 Unité d'application pour machine à imprimer des feuilles Ceased WO2017202910A1 (fr)

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EP17725589.0A EP3463886B1 (fr) 2016-05-25 2017-05-24 Unité d'alimentation pour une machine d'impression rotative à feuilles

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DE102016109730.6 2016-05-25
DE102016109730 2016-05-25
DE102017111308.8A DE102017111308A1 (de) 2016-05-25 2017-05-23 Anlegeeinheit für eine Bogendruckmaschine
DE102017111308.8 2017-05-23

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WO2017202910A1 true WO2017202910A1 (fr) 2017-11-30

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DE (1) DE102017111308A1 (fr)
WO (1) WO2017202910A1 (fr)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE102019129652A1 (de) * 2019-11-04 2021-05-06 Koenig & Bauer Ag Bogenbearbeitungsmaschine und Verfahren zur Ausrichtung von Bogen in zumindest einem Anlageaggregat einer Bogenbearbeitungsmaschine

Citations (8)

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DE2063618B2 (de) 1969-12-25 1973-11-29 K.K. Nisso, Osaka (Japan) Verfahren und Vorrichtung zur kontinuierlichen Herstellung gefalteter Wellpappebehälter
DE2718314A1 (de) 1976-06-18 1977-12-29 Polygraph Leipzig Rotierender vorgreifer in druckmaschinen
DE4343616A1 (de) 1993-12-21 1995-06-22 Kba Planeta Ag Modulares Druckmaschinensystem
DE19933304A1 (de) 1999-07-16 2001-01-25 Roland Man Druckmasch Anlegeeinheit für eine Bogenverarbeitungsmaschine
DE20104483U1 (de) * 2001-03-15 2001-06-13 Man Roland Druckmaschinen Ag, 63069 Offenbach Bogenleiteinrichtung für Bogenanleger mit Vorderkantentrennung
DE10344417A1 (de) * 2003-01-24 2004-08-05 Heidelberger Druckmaschinen Ag Bogenanleger mit einem Antrieb zum taktmäßigen Zuführen von Bogen zu einer Bogen verarbeitenden Maschine
DE102005012527A1 (de) 2005-03-16 2006-09-21 Man Roland Druckmaschinen Ag Anlegeeinheit für eine Bogenverarbeitungsmaschine, Bogenverarbeitungsmaschine und Verfahren zum Anlegen von Bogen
EP2065322A2 (fr) * 2007-11-30 2009-06-03 Koenig & Bauer AG Procédé destiné à démarrer/redémarrer une presse au sol

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170972B (de) * 1962-04-30 1964-05-27 Schnellressenfab Heidelberg Vorrichtung zum Vereinzeln und Foerdern des jeweils obersten Blattes eines Stapels

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2063618B2 (de) 1969-12-25 1973-11-29 K.K. Nisso, Osaka (Japan) Verfahren und Vorrichtung zur kontinuierlichen Herstellung gefalteter Wellpappebehälter
DE2718314A1 (de) 1976-06-18 1977-12-29 Polygraph Leipzig Rotierender vorgreifer in druckmaschinen
DE4343616A1 (de) 1993-12-21 1995-06-22 Kba Planeta Ag Modulares Druckmaschinensystem
DE19933304A1 (de) 1999-07-16 2001-01-25 Roland Man Druckmasch Anlegeeinheit für eine Bogenverarbeitungsmaschine
DE20104483U1 (de) * 2001-03-15 2001-06-13 Man Roland Druckmaschinen Ag, 63069 Offenbach Bogenleiteinrichtung für Bogenanleger mit Vorderkantentrennung
DE10344417A1 (de) * 2003-01-24 2004-08-05 Heidelberger Druckmaschinen Ag Bogenanleger mit einem Antrieb zum taktmäßigen Zuführen von Bogen zu einer Bogen verarbeitenden Maschine
DE102005012527A1 (de) 2005-03-16 2006-09-21 Man Roland Druckmaschinen Ag Anlegeeinheit für eine Bogenverarbeitungsmaschine, Bogenverarbeitungsmaschine und Verfahren zum Anlegen von Bogen
EP2065322A2 (fr) * 2007-11-30 2009-06-03 Koenig & Bauer AG Procédé destiné à démarrer/redémarrer une presse au sol

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DE102017111308A1 (de) 2017-11-30
EP3463886A1 (fr) 2019-04-10

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