Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41F—PRINTING MACHINES OR PRESSES
  • B41F7/00—Rotary lithographic machines
  • B41F7/02—Rotary lithographic machines for offset printing
  • B41F7/025—Multicolour printing or perfecting on sheets or on one or more webs, in one printing unit
• • 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
  • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
  • B41P2213/70—Driving devices associated with particular installations or situations
  • B41P2213/73—Driving devices for multicolour presses
  • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2801/00—Application field
  • B65H2801/03—Image reproduction devices
  • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

• the invention has set itself the task of a web-fed rotary printing press to create the operation of changing from a print production to a others can be adapted as flexibly as possible.
• essential machine components namely a reel changer, Printing cylinder and a folder of the web-fed rotary printing press, Automatically adjustable while the machine is running. From the adjustment thus, according to the invention, the entire web-fed rotary printing press is detected and not just a single one of these machine components. The adjusted adjustment of all Production-necessary machine components only make it possible to change the Print production while the machine is running. The machine no longer has to do this be stopped.
• the printing press having a roll changer which can accommodate different widths of substrate and the subordinate Machine components, in particular the printing cylinders and the folder, are accordingly adaptable, the printing press is particularly suitable for fully automatic changeover during the production of the first printed product the production of a second printed product with a different page size.
• the directly driven cylinder groups can act against a common impression cylinder or in each case against another directly driven group of cylinders be employed in order to enable flexible pressure point formation.
• the paired arrangement of two directly driven ones is particularly preferred Cylinder groups symmetrical on either side of one between the impression cylinders of the two groups of printing material running through. Most of them Cylinder group pairs form a printing tower of the printing press according to the invention. For example, for a four-color newspaper print, four pairs of such cylinder groups needed. For the changeover while the machine is running To accomplish, the printing press has additional pairs of cylinder groups according to the invention that would not be necessary for a single production.
• the Printing material web is led through all pairs of cylinder groups. Are there Constantly, from production to production, different pairs of cylinders in Function while other cylinder group pairs are out of function.
• the Machine configuration can then be changed flexibly by using the previous one Production required cylinder group pairs out of function and therefore Cylinder group pairs pre-equipped in accordance with the new print product in operation be taken.
• the two cylinder groups 10 are each through the impression cylinder 2 and an associated plate cylinder 3 formed for the common Direct drive are mechanically coupled.
• the mechanical Coupling is shown schematically by a line between the center points of the two cylinders 2 and 3 indicated.
• the pressure cylinders 2 of each cylinder group 10 driven by a three-phase motor 5.
• the cylinder groups 10 designed in this way are also in because of their direct drive particularly suitable for the formation of changing pressure points.
• FIG. 2 shows a first exemplary embodiment of a web-fed rotary printing press according to the invention, their pressure points by pairs of cylinder groups 10 after Fig. 1 are shown.
• a printing material web 1 is unwound and runs at a first printing point 7 in a pressure tower 30.
• the pressure tower 30 designed as a 12-tower has six Pairs of cylinder groups 10, the pressure cylinder 2 each to form a Pressure point 7 can be adjusted against each other.
• Printing tower 30 each have a printing point 7, so that the printing material web 1 in front and printed on the back in four colors.
• the printing material web is also running 1 between two pairs of pressure cylinders 2, which are not in their Pressure position.
• the impression cylinder 2 of these last two pressure points are drawn accordingly with dashed lines.
• the cylinder groups 10 are in pairs in the form of an upright or on the Upside down “V” arranged, with an upside down “V” in each case an upright "V” is arranged.
• Two pairs of cylinder groups thereby form a bridge shape or the shape of a lying "H”. This has the Advantage that that formed by two adjacent pairs of cylinder groups Pressure points are close together, which keeps the fan-out effect low time, as moisture penetrates between the pressure points remains to diffuse in.
• a further roll changer 13 runs through a further printing material web 1 a second pressure tower 40, the eighth pressure tower in the exemplary embodiment is trained.
• the webs 1 printed in the two printing towers 30 and 40 through a machine superstructure and over turning bars in a former 21 of a folder 20 out.
• the folder 20 is in the changeover of print production to a new one Print product with changed page size adjusted accordingly. For this the Distance between the rollers of not shown, the former 21 downstream Roller pairs adjusted and so the changed page size of the new Adapted print product.
• FIG of each four directly driven cylinder groups 10 against a central one Counter cylinder 6 are adjustable.
• Two printing towers 30 and 40 are shown with two cylinder units each formed in this way.
• Lane 1 runs in succession both printing units of both printing towers 30 and 40 and then runs in the Folder 20 a.
• all cylinder groups are 10 of one printing tower 40 is pivoted away from its associated impression cylinder 6, while the cylinder groups 10 of the other printing tower 30 are in their pressure position. Accordingly, when changing production, the Pressure tower 40 in operation and the pressure tower 30 are put out of operation.
• By the mirror image of the same design of both printing towers 30 and 40 can all parameters, all colors and the print content are changed.
• other operating positions are also conceivable, in which basically any Cylinder groups 10 placed on their respective associated impression cylinder 6 are.
• Fig. 4 shows a further alternative to the formation of pressure points 7.
• a pressure point 7 each formed by a pair of double-strong pressure cylinders 2, which, together with two assigned plate cylinders 3, each directly driven Form cylinder group 10.
• the plate cylinders 3 of their printing cylinder 2 pivoted away.
• the reel changer now calculates the limit roller diameter (GD) based on the specified data, which, due to the limit torque and under emergency stop conditions, still exceeds the Center drive can be braked.
• GD limit roller diameter
• the reel changer also calculates before, but also during production based on the target / actual difference in the number of runs, the roll requirement in linear meters, which he updated to automated for the first time before production started and later Paper roll processing system transmitted.
• the automated paper roll processing system fetches the paper rolls from the intermediate storage facility End of production or production changeover, taking into account a certain reserve, an optimal residual roll diameter (RD) result.
• RD residual roll diameter
• the reel changer carries out the production changeover on the fly if the condition RD ⁇ GD is fulfilled.
• German patent application P 44 13 663 Process and adhesive for creating a splice site at a drain Printing material web with the start of a replacement printing material web winding known that has already been optimized for use in flying latitude changes is particularly suitable.
• the advantage of the manufacturing method described there A splice position is that the structure of the splice position is already in divides individual partial webs and so for the automatic transfer process during flying roll width change is particularly suitable.
• a folder with components that are dependent on the number of substrates can be adjusted automatically and in the run. Especially these are the adjustable folding flap, the different employment of the Pull rollers, the rebate adjustment, the expansion of the collecting cylinder and the Adjustment of the point delivery shift.
• a preferred roll rotation controller for the NONSTOP production of different print products is structured as follows:
• the control supports a dynamically convertible web-oriented web monitoring device, those with the production description records (old / new) per railway permits a change in web width or position.
• the change is solved that every track in itself by route monitoring between the track monitoring bodies never left without crack monitoring; only the single panel widths Path shares in the downward direction must be minimal Time window can be deactivated and reactivated.
• the change in web width includes the possibility that entire lanes can be pulled out in the run.
• the controller supports the simultaneous recording of two production description data records (old / new) and two preset data records (old / new), thus the preparation phase, transition phase and the activation phase of the Production change in the course of the associated data are supplied can.
• the change of production can affect several lanes simultaneously.
• the control supports the preparation phases, transition phases and Activation phases of production changes in the course of required functions, automatisms, Operations, displays and acknowledgments.
• the controller supports reel changers that are capable of running Glue sheets with different widths or position. The cutting off without wrapping is also supported.
• the controller supports folding devices that are capable of discontinuous running Include changes in newspaper page numbers.
• the control supports switching on and / or off during the run of printing units (PCU).
• the control supports the automatic machine speed adjustment, if necessary, which is required for a specific production / production changeover or is desired.
• the FAN-OUT effect is suitable for printing on the substrate attached printed marks or detected using the web or type area edges.
• the spacing of the print marks - in the longitudinal direction and possibly also in Transverse direction - are continuously detected and to determine a compensation signal compared with the target values. Depending on the deviation of the detected The web tension setpoint at the infeed unit is taken into account adapted from web tension limits. If necessary, the speed setpoints other traction elements along the railway path balanced.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Inking, Control Or Cleaning Of Printing Machines (AREA)
• Rotary Presses (AREA)
• Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
• Compounds Of Unknown Constitution (AREA)
• Air Bags (AREA)
• Saccharide Compounds (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)
• Wet Developing In Electrophotography (AREA)
• Press Drives And Press Lines (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=6529912

Family Applications (1)

Country Status (10)

Cited By (16)

Families Citing this family (55)

Citations (9)

Family Cites Families (21)

• 1994
  • 1994-10-04 DE DE4435429A patent/DE4435429C2/de not_active Expired - Fee Related
  • 1994-10-04 DE DE4447859A patent/DE4447859B4/de not_active Expired - Lifetime
• 1995
  • 1995-09-15 AT AT95810572T patent/ATE182844T1/de not_active IP Right Cessation
  • 1995-09-15 DK DK95810572T patent/DK0710558T3/da active
  • 1995-09-15 ES ES95810572T patent/ES2136825T3/es not_active Expired - Lifetime
  • 1995-09-15 DE DE59506520T patent/DE59506520D1/de not_active Expired - Lifetime
  • 1995-09-15 EP EP95810572A patent/EP0710558B1/fr not_active Expired - Lifetime
  • 1995-10-03 FI FI954694A patent/FI114856B/fi not_active IP Right Cessation
  • 1995-10-03 US US08/538,552 patent/US5699735A/en not_active Expired - Lifetime
  • 1995-10-04 RU RU95117073A patent/RU2102242C1/ru not_active IP Right Cessation
  • 1995-10-04 CN CN95119108A patent/CN1072107C/zh not_active Expired - Fee Related
  • 1995-10-04 JP JP27991695A patent/JP3335051B2/ja not_active Expired - Fee Related

Patent Citations (9)

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