EP0425913B1 - Machine d'impression de feuilles en plusieurs couleurs - Google Patents

Machine d'impression de feuilles en plusieurs couleurs Download PDF

Info

Publication number
EP0425913B1
EP0425913B1 EP90120024A EP90120024A EP0425913B1 EP 0425913 B1 EP0425913 B1 EP 0425913B1 EP 90120024 A EP90120024 A EP 90120024A EP 90120024 A EP90120024 A EP 90120024A EP 0425913 B1 EP0425913 B1 EP 0425913B1
Authority
EP
European Patent Office
Prior art keywords
printing
chain
sheet
gripper
adjustable
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.)
Expired - Lifetime
Application number
EP90120024A
Other languages
German (de)
English (en)
Other versions
EP0425913A3 (en
EP0425913A2 (fr
Inventor
Karl Marx
Ingo Köbler
Erich Wegel
Rudolf Melzer
Valentin Gensheimer
Bert Cappel
Georg Hartung
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 AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT90120024T priority Critical patent/ATE98562T1/de
Publication of EP0425913A2 publication Critical patent/EP0425913A2/fr
Publication of EP0425913A3 publication Critical patent/EP0425913A3/de
Application granted granted Critical
Publication of EP0425913B1 publication Critical patent/EP0425913B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Definitions

  • the invention relates to a sheet-processing printing machine for multi-color printing according to the preamble of claim 1.
  • Such a sheet-processing printing machine is known from US Pat. No. 2,138,405.
  • the chain-guided gripper carriages provided for sheet transport through the printing press in a single gripper closure are temporarily locked with the impression cylinders of the printing units in order to synchronize the peripheral speeds of the cylinder surfaces and of the chains or of the guide rails connected to the latter. This is one of the most important prerequisites for a good register with a perfect multi-color print.
  • This sheet-fed printing machine has irregularities due to chain elongations that occur during operation.
  • the stretching and stretching or contraction of the chains creates difficulties, the disturbances in the effective cooperation between the grippers on the chains and the grippers from which they receive the sheets, e.g. a feed drum.
  • the vertical (radial) position of the grippers in the direction of their path through the machine can also be disturbed due to unequal chain lengths.
  • non-adjustable mechanical synchronization means are provided in the form of form-fitting fixing devices which inevitably wear out during operation, which leads to a deterioration in the synchronization of the peripheral speeds of the surfaces of the counter-pressure cylinders and the chain-guided gripper carriages or the parabolic or the like coupled to the latter. trained guide rails must lead.
  • the special locking is timed so that the Sheets are only handed over to the double-size take-up drum or transferred from the double-size take-up drum to the grippers of the delivery when the printing is complete, even with the maximum format.
  • the disadvantage is that there are two sheet transfers between the printing units, and registration difficulties can occur due to transfer difficulties.
  • the object of the invention is to enable an improvement in the mechanical forced synchronization between the gripper device on the one hand and the respective impression cylinder on the other hand in a sheet-processing printing machine of the type mentioned at the outset.
  • the invention has a number of advantages.
  • the known difficulties such as curling of the sheet at the end of the sheet, doubling and register differences at the end of the sheet, do not occur.
  • the sheet start does not leave the cylinder periphery of the impression cylinder until the printout is complete.
  • the torque can be set to a continuous, from each individual printing unit Main motor driven longitudinal shaft are statically determined supplied, the chain drive can be viewed as a decoupling of the printing units, so that the difficulties encountered with continuous gear train mechanical mechanical synchronization of sheet-guiding cylinders and drums are not given.
  • the risk of smearing due to the omission of transfer drums is reduced and there are better options for drying freshly printed sheets.
  • the gripper scheme ie the lateral arrangement of the grippers, can be chosen to be narrower, which, in addition to better fitting accuracy, also leads to higher transferable forces when the sheet is released from the blanket cylinder.
  • differences in the thickness of the printing materials (thin printing paper compared to cardboard) with regard to the gripper surcharges are less apparent with a single transfer from the system to the chain than with a large number of transfers, which are common with other chain-guided gripper systems, i.e. there is no height adjustment of the numerous carriages or drums to the appropriate paper thickness to avoid resulting inaccuracies in the register.
  • the machine speed can also be increased.
  • the sheet-processing printing machine shown in Fig. 1 has printing units, each consisting of a plate cylinder 2, a blanket cylinder 3 and a double-sized diameter compared to these impression cylinder 1.
  • double-sized chain wheels 34 are fastened, which are in engagement with endless chains 4, which are moved in a wave-like manner by the printing units.
  • Gripper carriages 5 attached to the chains 4 are thus guided around the impression cylinder 1.
  • the fixing devices 24 to 32 are designed as prisms 25, 26, which are adjustable in the circumferential direction between an adjusting screw 31 supported at 29 on the chain wheel 34 and an equally supported spring 30.
  • a support roller 24 can be locked, which is articulated below a support rod 36 for the gripper fingers 39 of the gripper carriage 5 on a support bracket 35.
  • the support bracket 35 is also supported via an alignment surface 27 below a support rod 37 for the gripper supports 40 of the gripper carriage 5 on a radial support screw 28 guided in the chain wheel 34.
  • the gripper carriage 5 is suspended in the chain 4 by means of the support plate 35.
  • the sprocket 34 is missing in the area of the carrier plate 35 and subsequently teeth or they are cut to a point.
  • the tensile load of the chain 4 depends on the tag plate 35 before and after passing through the cylinder cutouts of the impression cylinder 1.
  • the support plate 35 is additionally pulled approximately radially against the prism 25, 26 and the support screw 28 and held in time until the printed sheet 38 is printed out.
  • the chain 4 is re-tensioned at suitable points, it being possible for the printing units to be rotated relative to one another via releasable couplings in accordance with the amount of re-tensioning.
  • the gripper transfers of the printed sheet 38 from the sheet feeder 16 to the chain 4 or from the chain 4 to the delivery are controlled in a known manner, not shown, by fixed curves.
  • the sheet 38 according to FIG. 1 is guided in a known manner by the feeder 16 over the feed table 20 and is aligned with feed marks 21 at a standstill on the front edge and on the side edge. Vibrating pre-grippers 8 accelerate it to a uniformly rotating feed drum 7, which transfers it at 10 to the gripper carriage 5, which is adjusted at point 10.
  • the gripper carriage 5 leaves with the front edge of the completely printed sheet 38 at 6 the periphery of the impression cylinder 1 and is realigned together with the sheet 38 from 13 on the impression cylinder 1 of the second printing unit.
  • the fresh ink can be dried with the aid of a drying device 19. After the last one Printing the sheet 38 at 22 is passed to the chain circle 17 through the delivery drum 23 and laid out as a stack 18.
  • Fig. 1 is the angle that is available for aligning and fixing the gripper carriage in the first printing unit.
  • the tangent point of the chain 4 for aligning and fixing the gripper carriage in the subsequent printing unit is designated.
  • 14 denotes the angle that is available for aligning and fixing in the following printing unit, while 15 denotes the angle that corresponds to the maximum sheet format.
  • the available angles 12 and 14 for aligning and fixing the gripper carriage 5 on the impression cylinder 1 are used by the gripper carriage 5 or the gripper chain 4 on a track outside the periphery of the sprocket 34 of the impression cylinder 1 so that they between the printing units almost without jerking and with minimal inertial forces, for example parabolically in guide rails 33.
  • the guide rails 33 which are designed parabolically or according to another power function, generate centrifugal forces acting on the gripper carriages 5 while the machine is running, which progressively increases or decreases in every ratio from zero to a constant value at the point of contact with the circumference of the double-sized impression cylinder 1 due to the design of the guide track are selectable.
  • the aligning and fixing process of the gripper carriage 5 on the impression cylinder 1 takes place in such a way that when the chain 4 approaches the support roller 24 acting as the alignment element reaches the effective area of the prism 25 acting as a further alignment element in position A in FIG is aligned along its flank 26 in the circumferential direction, ie tangentially with respect to the impression cylinder 1. Only then is the effective radius of the gripper pads 40 of the gripper carriages 5 determined by the alignment surface 27 of the support bracket 35 on the radial support screws 28 to be set during assembly in the sheet transfer position.
  • By a suitable choice of the path of the gripper carriage 5, it is possible to extend the alignment angle 12 and thus the time available for the alignment process. This can also be achieved, for example, in that the path of the gripper carriage 5 gradually approaches the periphery of the impression cylinder 1.
  • the front edge of the printed sheets 38 can be adjusted both parallel and at an angle to the other printing units in such a way that the different ones are corrected by correcting the position of the printed sheet 38 on the impression cylinders 1
  • Print images can be made to fit together on the printed sheet 38 until the printed sheet 38 also has the maximum format, and in the same way a lateral sheet position can also be reproducibly set, for example through lateral adjustments provided in the guide rails 33 or otherwise.
  • the guide rails 33 guide the gripper carriages connected to the chain 4 out of the periphery of the impression cylinder 1 after the fixation by means of the electromagnet 32 between the gripper carriage 5 and the impression cylinder 1 has been lifted in time via a control system, not shown .
  • the guide rails 33 can also be formed as rollers or chain wheels or similar elements or from a combination of these elements.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Color, Gradation (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Rotary Presses (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Printing Methods (AREA)

Claims (3)

  1. Imprimante pour imprimer des feuilles en plusieurs couleurs, comportant des chariots de pinces, qui sont fixés à des chaînes sans fin, déplacées sur une trajectoire arquée à travers les unités d'impression, les chaînes étant en engagement avec des roues qui sont fixées à l'extrémité des cylindres de contre-pression des unités d'impression, et, aux chariots de chaînes et/ou aux chariots de pinces, étant associés des rails de guidage réalisés de façon parabolique ou analogue, de sorte que des allongements des chaînes ou des variations de vitesse entre les unités d'impression peuvent être compensés, les chariots de pinces guidés par les chaînes étant temporairement verrouillés aux cylindres de contre-pression par des dispositifs de fixation,
    caractérisée en ce que les cylindres de contre-pression (1) présentent un diamètre double par rapport aux cylindres porte-plaque et porte-blanchet (2,3), des roues pour chaîne (34), de même de diamètre double, étant fixées aux extrémités des cylindres de contre-pression (1) de diamètre double, roues sur lesquelles sont agencés deux dispositifs de fixation (24-32) diamétralement opposés l'un à l'autre et réglables aussi bien en direction radiale qu'en direction tangentielle.
  2. Imprimante selon la revendication 1,
    caractérisée en ce que les chariots de pinces (5) sont suspendus dans la chaîne (4) par une languette de support (35), et en ce que les dispositifs de fixation réglables (24-32) comportent des prismes et des vis d'appui (25,26 28), contre lesquels la languette de support (35) est tirée à peu près radialement au moyen d'un électroaimant (32) fixé à la roue pour chaîne (34), chaque prisme (25,26) étant réglable en direction tangentielle et chaque vis d'appui (28) en direction radiale sur la roue à chaîne (34).
  3. Utilisation du dispositif de fixation réglable (24-32) selon la revendication 1 ou 2 dans des imprimantes à feuilles, pour adapter les différentes images imprimées les unes aux autres sur la feuille (38).
EP90120024A 1989-11-02 1990-10-19 Machine d'impression de feuilles en plusieurs couleurs Expired - Lifetime EP0425913B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90120024T ATE98562T1 (de) 1989-11-02 1990-10-19 Bogenverarbeitende druckmaschine fuer mehrfarbendruck.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3936345A DE3936345C1 (fr) 1989-11-02 1989-11-02
DE3936345 1989-11-02

Publications (3)

Publication Number Publication Date
EP0425913A2 EP0425913A2 (fr) 1991-05-08
EP0425913A3 EP0425913A3 (en) 1991-06-26
EP0425913B1 true EP0425913B1 (fr) 1993-12-15

Family

ID=6392641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90120024A Expired - Lifetime EP0425913B1 (fr) 1989-11-02 1990-10-19 Machine d'impression de feuilles en plusieurs couleurs

Country Status (6)

Country Link
US (1) US5125334A (fr)
EP (1) EP0425913B1 (fr)
JP (1) JP2566677B2 (fr)
AT (1) ATE98562T1 (fr)
DE (2) DE3936345C1 (fr)
ES (1) ES2047801T3 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193458A (en) * 1992-06-23 1993-03-16 Keller James J Gripper bar conveyor for multiple color offset rotary printing press
US5477780A (en) * 1992-06-23 1995-12-26 Keller; James J. Horizontal sheet transfer multiple color offset rotary printing press with horizontal slide access
US5590598A (en) * 1992-06-23 1997-01-07 Keller; James J. Horizontal sheet transfer multiple color offset rotary printing press with horizontal slide access
US5794531A (en) * 1992-06-23 1998-08-18 Keller; James J. Multiple color offset rotary printing press with horizontal slide access
DE4229818C1 (de) * 1992-09-07 1993-12-16 Roland Man Druckmasch Verfahren und Vorrichtung zur paßgerechten Bogenübergabe in einer Bogenrotationsdruckmaschine
DE4433380A1 (de) * 1994-09-20 1996-03-21 Roland Man Druckmasch Greiferzylinder
US5819663A (en) * 1995-09-06 1998-10-13 Quad/Tech, Inc. Gripper conveyor with preliminary ink jet
NL1006150C2 (nl) * 1997-05-28 1998-12-01 Stork X Cel Bv Drukwerkwijze, drukinrichting, alsmede samenstel van drukinrichting en invoereenheid.
DE19835871C2 (de) * 1998-08-07 2002-05-23 Ltg Holding Gmbh Transportsystem für Bogen
DE10023136A1 (de) * 2000-05-13 2001-11-15 Roland Man Druckmasch Bogenrotationsdruckmaschine für Mehrfarbendruck
DE10152843A1 (de) * 2000-11-29 2002-06-13 Heidelberger Druckmasch Ag Vorrichtung zur Anpassung der Lage bogenförmigen Material bei Bewegungsrichtungsumkehr
US6916440B2 (en) * 2001-05-31 2005-07-12 3M Innovative Properties Company Processes and apparatus for making transversely drawn films with substantially uniaxial character
KR100501958B1 (ko) * 2002-11-13 2005-07-20 조충 4색 양면인쇄용 윤전기
US6936209B2 (en) * 2002-11-27 2005-08-30 3M Innovative Properties Company Methods and devices for processing polymer films
DE102004050725B4 (de) * 2004-10-19 2017-04-20 manroland sheetfed GmbH Verfahren zum Transport von Bogenmaterial und Verarbeitungsmaschine dazu
US7334790B2 (en) 2004-10-29 2008-02-26 Heidelberger Druckmaschinen Ag Apparatus for conveying sheets through a rotary press
JP4965555B2 (ja) * 2005-04-08 2012-07-04 スリーエム イノベイティブ プロパティズ カンパニー ヒートセット型光学フィルム
DE102006051279A1 (de) * 2006-10-31 2008-05-08 Man Roland Druckmaschinen Ag Vorrichtung und Verfahren zur Veredelung von bogenförmigen Substraten
DE102009000220B4 (de) * 2009-01-14 2019-07-18 Koenig & Bauer Ag Ausleger einer bogenverarbeitenden Maschine mit einem Kettenfördersystem zum Übernehmen der Bogen von einem Bogenführungszylinder
DE102009016067A1 (de) 2009-03-17 2010-09-23 Steinemann Technology Ag Vorrichtung zum Befördern eines Bogens
AT513431B1 (de) 2012-09-28 2015-10-15 Primetals Technologies Austria GmbH Gekühlte, mehrfach gelagerte Strangführungsrolle
CN105966058A (zh) * 2016-07-07 2016-09-28 天津长荣印刷设备股份有限公司 一种适用于机组式模烫机的定位微调装置及其工作方法
CN106183394A (zh) * 2016-07-07 2016-12-07 天津长荣印刷设备股份有限公司 一种机组式模烫机的精准定位装置及其工作方法
JP2022059960A (ja) * 2020-10-02 2022-04-14 富士フイルムビジネスイノベーション株式会社 画像形成装置

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Publication number Priority date Publication date Assignee Title
GB191512A (en) * 1921-10-28 1923-01-18 Linotype Machinery Ltd Improvements in sheet-delivery mechanism of printing machines
US2138405A (en) * 1935-06-08 1938-11-29 Hoe & Co R Multicolor sheet fed rotary printing machine
US2756995A (en) * 1950-03-30 1956-07-31 Roland Offsetmaschf Sheet transferring device for multiunit printing machines
US2775934A (en) * 1953-02-27 1957-01-01 Cottrell Company Sheet fed rotary printing presses
DE1119300B (de) * 1960-07-22 1961-12-14 Maschf Augsburg Nuernberg Ag Steuerung der Greifer an mit Nachgreifern zusammenwirkenden Kettenauslegern von Druckmaschinen
DE1224753B (de) * 1965-05-15 1966-09-15 Koenig & Bauer Schnellpressfab Vorrichtung zur passgerechten Bogenuebergabe an Druckwerken mittels Greiferketten bei Druck-maschinen
DE1260482B (de) * 1966-05-21 1968-02-08 Roland Offsetmaschf Bogendruckmaschine mit einer Vorrichtung zum Trocknen bedruckter Bogen
DE2308025C3 (de) * 1973-02-19 1980-12-04 Western Gear Corp., Pittsburgh, Pa. (V.St.A.) Bogenausleger für eine Bogendruckmaschine
US3949670A (en) * 1975-02-21 1976-04-13 Akiyama Katsuji Multicolour offset press
JPS6044349A (ja) * 1983-08-23 1985-03-09 Dainippon Ink & Chem Inc 枚葉オフセット輪転印刷機
DE3636578A1 (de) * 1986-10-28 1988-05-19 Roland Man Druckmasch Vorrichtung zur passgenauen bogenuebergabe zwischen den druckeinheiten einer mehrfarbendruckmaschine

Also Published As

Publication number Publication date
ATE98562T1 (de) 1994-01-15
ES2047801T3 (es) 1994-03-01
DE3936345C1 (fr) 1991-03-07
JPH03219956A (ja) 1991-09-27
US5125334A (en) 1992-06-30
EP0425913A3 (en) 1991-06-26
DE59003878D1 (de) 1994-01-27
EP0425913A2 (fr) 1991-05-08
JP2566677B2 (ja) 1996-12-25

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