EP0452698B1 - Système de contrôle à appareil à ventouse dans des rouleaux de transfert de feuilles sur des machines rotatives pour feuilles et pour impression de plusieurs couleurs - Google Patents

Système de contrôle à appareil à ventouse dans des rouleaux de transfert de feuilles sur des machines rotatives pour feuilles et pour impression de plusieurs couleurs Download PDF

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Publication number
EP0452698B1
EP0452698B1 EP91104508A EP91104508A EP0452698B1 EP 0452698 B1 EP0452698 B1 EP 0452698B1 EP 91104508 A EP91104508 A EP 91104508A EP 91104508 A EP91104508 A EP 91104508A EP 0452698 B1 EP0452698 B1 EP 0452698B1
Authority
EP
European Patent Office
Prior art keywords
sheet
sucker
control
suction
transfer
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
EP91104508A
Other languages
German (de)
English (en)
Other versions
EP0452698A1 (fr
Inventor
Ingo Köbler
Josef Mathes
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 AT91104508T priority Critical patent/ATE101082T1/de
Publication of EP0452698A1 publication Critical patent/EP0452698A1/fr
Application granted granted Critical
Publication of EP0452698B1 publication Critical patent/EP0452698B1/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
    • B41F21/10—Combinations of transfer drums and grippers
    • B41F21/106—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine
    • B41F21/108—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine with pneumatic means

Definitions

  • the invention relates to a suction control in sheet transfer drums in multi-color sheet-fed rotary printing presses for turning the sheet according to the principle of turning the trailing edge when transferring the sheet from one printing unit to another in order to print on the back of the sheet, according to the preamble of the first claim.
  • the object of the invention is to provide a suction control which enables the trailing edge of the sheet to be taken over exactly by the suction system from the upstream cylinder and to be transferred exactly to the first gripper system of the two gripper systems to be swung one on top of the other.
  • the arrangement according to the invention makes it possible to freely design the control curve, i.e. the suction cups can already grasp the sheet in front of the tangent point T of the cylinder on the impression cylinder with a tangentially positioned suction surface on the periphery of the impression cylinder and, after sucking in the sheet over a longer distance, can draw between the cylinders under the periphery of the sheet transfer drum before the tangent point T , without a harmful deflection angle between the suction surface and the sheet being able to occur, in order to finally transfer the sheet to the first gripper system.
  • This first gripper system then carries out its pivoting movement independently of the pivoting movement of the suction system.
  • FIG. 1 shows the sheet transfer drum 2 and the printing cylinder 3 arranged upstream thereof during the phase of the sheet transfer through the suction devices 6 to the first gripper system 4.
  • the first gripper system 4 and the second gripper system 5 are shown only schematically.
  • the suction cups 6 of the suction system 10 are firmly connected to the hollow suction oscillating shaft 7 and this is connected to control levers 11.
  • Guide rollers 12 are attached to the control levers 11.
  • at least one concave control curve 13 has guide rails 14 on which the guide rollers 12 of the suction system 10 attached to the control levers 11 run.
  • the control curve 13 has curve sections with a movement law which makes it possible to move the suction surfaces of the suction devices 6 of the suction system 10 which are fastened to the hollow suction oscillating shaft 7 on a path which is shown as a detail in FIG. 3.
  • the suction devices 6 detect the rear edge of the sheet 1 on the periphery of the upstream printing cylinder 3 and move with an extended distance on this periphery at the printing cylinder speed.
  • the suction cups 6 of the suction system 10 are controlled in front of the tangent point T below the periphery of the sheet transfer drum 2, the sheet 1 being peeled off by the impression cylinder 3 because the sheet 1 is kept taut by the suction cups 6 on the modified involute path in the moving coordinate system rotating cylinder 2, 3 is guided.
  • the suction devices 6 of the suction system 10 finally transfer to the first gripper system 4 in a third phase.
  • the deflection angle between the suction surfaces and the sheet 1 does not change.
  • Such a path control allows the sheet 1 to be gripped safely and creates space for the control of the gripper finger of the first gripper system 4, which is controlled in a known manner on the sheet 1 resting on the suction cups 6.
  • the guide rails 14 can be attached to the end faces of the sheet transfer drum 2, which is space-saving, but also in Inside. This ensures that relative shifts between the sheet transfer drum 2 and the control cam 13 can not occur even after a long period of operation.
  • the drive of the suction system 10 is derived from a fixed cam 8 via roller levers 9 attached to a drive shaft 18 and drive lever 16 via a connecting plate 15 which is articulated to a drive lever 17 attached to the hollow suction oscillation shaft 7.
  • the roller lever 9, the drive shaft 18 and the cam plate 8 attached to the frame are shown only schematically in FIG. 2.
  • the sheet 1 is finally clamped on the gripper pads of the first gripper system 4 by its gripper fingers, the pivoting movement of the suction system 10 taking place against stops (not shown) on the first gripper system 4 in order to fix the sheet trailing edge in its position in a known manner.
  • the first gripper system 4 then transfers to the second gripper system 5 and from there to the gripper system of the subsequent printing cylinder, not shown.
  • This type of turning is known and is shown in principle in DE-PS 1 786 371 and described in detail.

Landscapes

  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Handling Of Cut Paper (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (5)

  1. Commande d'éléments d'aspiration dans des tambours de transfert de feuilles, pour des imprimantes rotatives pour feuilles en plusieurs couleurs, pour tourner la feuille selon le principe du renversement du bord arrière, lors du transfert d'une unité d'impression vers l'autre, dans le but d'imprimer la face arrière de la feuille, comportant un système d'aspiration pour la réception de la feuille, pour la transmission à un premier de deux systèmes de prise de feuilles basculant l'un vers l'autre et pour le transfert de la feuille du second système de prise de feuilles à un système de prise de feuilles du cylindre suivant,
    caractérisée en ce que les éléments d'aspiration (6) du système d'aspiration (10) sont fixés à un arbre oscillant creux d'aspiration (7) et celui-ci est fixé à des leviers de commande (11) qui portent des rouleaux de guidage (12), en ce que des rails de guidage (14), présentant des cames de commande (13), sont prévus sur le tambour de transfert de feuilles (2), sur lesquels rails se déplacent les rouleaux de guidage (12), et en ce qu'une commande à cames (8,9,16,18) est prévue pour l'entraînement du système d'aspiration (10), commande à cames qui est couplée, de façon mobile, par l'intermédiaire d'une languette de liaison (15), à un levier d'entraînement (17) fixé sur l'arbre creux oscillant d'aspiration (7).
  2. Commande d'éléments d'aspiration selon la revendication 1,
    caractérisée en ce que les leviers de commande (11) comportent deux rouleaux de guidage (12.1, 12.2) qui se déplacent sur une came de commande externe (13.1), et en ce qu'une came de commande interne (13.2) est prévue, sur laquelle se déplace un troisième rouleau de guidage (12.3) qui est monté, coaxialement, sur l'axe de l'arbre creux oscillant d'aspiration (7).
  3. Commande d'éléments d'aspiration selon l'une des revendications 1 ou 2,
    caractérisée en ce que les cames de commande (13) sont, à chaque fois, formées sur des rails de guidage (14) qui sont fixés au tambour de transfert de feuilles (2), les rails de guidage (14) étant prévus des deux côtés du tambour de transfert de feuilles (2) ou également entre les côtés.
  4. Commande d'éléments d'aspiration selon la revendication 1,
    caractérisée en ce qu'au moins l'un des rouleaux de guidage (12) est fixé élastiquement.
  5. Commande d'éléments d'aspiration selon l'une des revendications 1 à 4,
    caractérisée en ce qu'une came auxiliaire est de plus prévue, sur laquelle se déplace un rouleau auxiliaire élastique.
EP91104508A 1990-04-19 1991-03-22 Système de contrôle à appareil à ventouse dans des rouleaux de transfert de feuilles sur des machines rotatives pour feuilles et pour impression de plusieurs couleurs Expired - Lifetime EP0452698B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91104508T ATE101082T1 (de) 1990-04-19 1991-03-22 Saugersteuerung in bogenuebergabetrommeln in mehrfarben-bogenrotationsdruckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012498 1990-04-19
DE4012498A DE4012498C1 (fr) 1990-04-19 1990-04-19

Publications (2)

Publication Number Publication Date
EP0452698A1 EP0452698A1 (fr) 1991-10-23
EP0452698B1 true EP0452698B1 (fr) 1994-02-02

Family

ID=6404671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91104508A Expired - Lifetime EP0452698B1 (fr) 1990-04-19 1991-03-22 Système de contrôle à appareil à ventouse dans des rouleaux de transfert de feuilles sur des machines rotatives pour feuilles et pour impression de plusieurs couleurs

Country Status (6)

Country Link
US (1) US5184553A (fr)
EP (1) EP0452698B1 (fr)
JP (1) JPH0751353B2 (fr)
AT (1) ATE101082T1 (fr)
DE (2) DE4012498C1 (fr)
ES (1) ES2050002T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126643A1 (de) * 1991-08-12 1993-02-18 Koenig & Bauer Ag Trommel zum transportieren und uebergeben von bogen
DE4424967C2 (de) * 1994-07-15 2000-05-31 Koenig & Bauer Ag Verfahren und Einrichtung zur Bogenwendung
US5762333A (en) * 1994-08-31 1998-06-09 Komori Corporation Sheet reversing apparatus for sheet-fed rotary press with reversing mechanism
DE19617545C1 (de) * 1996-05-02 1997-04-30 Kba Planeta Ag Saugerführungsgetriebe
DE19617544C1 (de) * 1996-05-02 1997-04-30 Kba Planeta Ag Wendetrommel mit einem Antrieb für einen Wendegreifer
DE19617491C1 (de) * 1996-05-02 1997-05-07 Kba Planeta Ag Antrieb für ein Saugersystem in Wendetrommeln
DE19833903A1 (de) * 1998-07-28 2000-02-03 Heidelberger Druckmasch Ag Verfahren zur Übernahme einer Bogenhinterkante von einem vorgeordneten Zylinder einer Bogenrotationsdruckmaschine
DE202005005682U1 (de) 2005-04-11 2005-06-16 Man Roland Druckmaschinen Ag Abnahmesauger für eine Wendetrommel
DE102007059913A1 (de) 2007-12-12 2009-06-18 Koenig & Bauer Aktiengesellschaft Antrieb für Schwingsysteme in Bogenführungszylindern einer Bogenrotationsdruckmaschine
DE102011084210B4 (de) 2011-10-10 2024-04-25 manroland sheetfed GmbH Bogenführungszylinder mit wenigstens einer pneumatisch steuerbaren Bogenhaltevorrichtung
DE102013214454A1 (de) 2013-07-24 2015-01-29 manroland sheetfed GmbH Bogenführungszylinder mit einer pneumatischen Bogenhaltevorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537391A (en) * 1967-10-18 1970-11-03 Miller Printing Machinery Co Sheet handling apparatus and method for multicolor perfector press
DD110452A1 (fr) * 1974-03-21 1974-12-20
DE3333050A1 (de) * 1983-09-14 1985-03-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorgreiferantrieb
DD248319A1 (de) * 1986-04-21 1987-08-05 Polygraph Leipzig Saugersteuerungen in bogenfuehrungszylindern
DD248320B5 (de) * 1986-04-21 1994-01-13 Kba Planeta Ag Saugersystem in bogenfuehrungszylindern

Also Published As

Publication number Publication date
US5184553A (en) 1993-02-09
ATE101082T1 (de) 1994-02-15
JPH0751353B2 (ja) 1995-06-05
ES2050002T3 (es) 1994-05-01
JPH04224949A (ja) 1992-08-14
DE4012498C1 (fr) 1991-11-14
DE59100972D1 (de) 1994-03-17
EP0452698A1 (fr) 1991-10-23

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