EP0212365B1 - Dispositif de pinces pour rotatives à feuille - Google Patents

Dispositif de pinces pour rotatives à feuille Download PDF

Info

Publication number
EP0212365B1
EP0212365B1 EP86110487A EP86110487A EP0212365B1 EP 0212365 B1 EP0212365 B1 EP 0212365B1 EP 86110487 A EP86110487 A EP 86110487A EP 86110487 A EP86110487 A EP 86110487A EP 0212365 B1 EP0212365 B1 EP 0212365B1
Authority
EP
European Patent Office
Prior art keywords
gripper
sheet
tip
rotary printing
fed rotary
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
Application number
EP86110487A
Other languages
German (de)
English (en)
Other versions
EP0212365A3 (en
EP0212365A2 (fr
Inventor
Manfred Rüger
Valentin Gensheimer
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 AT86110487T priority Critical patent/ATE38491T1/de
Publication of EP0212365A2 publication Critical patent/EP0212365A2/fr
Publication of EP0212365A3 publication Critical patent/EP0212365A3/de
Application granted granted Critical
Publication of EP0212365B1 publication Critical patent/EP0212365B1/fr
Expired 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
    • B41F21/104—Gripper details

Definitions

  • the invention relates to a sheet gripper device on sheet-fed rotary printing machines according to the preamble of the first claim.
  • Such a sheet gripper device is known from publication FR-A-2 345 377: an inelastic pressure piece is attached to the gripper tip via an elastic intermediate layer.
  • the non-elastic pressure piece is formed by glass fibers that protrude from a soft plastic and are deformable. Functional, manufacturing and assembly related parallelism errors as well as the influence of the substrate thickness cannot be compensated for reliably by such a hard holding surface. Since the sheet is held non-positively, it is always important to have a uniform wearing pattern, especially if significant tractive forces act on the sheet to be removed when processing smooth printing materials and printing inks with high toughness at high machine speeds, which must be safely absorbed by the grippers . Otherwise there will be register errors which make the print unusable.
  • the object of the invention is to provide a sheet gripper device of the type mentioned which enables the hard holding surface of the gripper tip to always align parallel to the printing material and the gripper support when the gripper is closed.
  • FIG. 1 shows a sheet gripper device for gripping and forwarding sheets 5.
  • a sheet gripper 2 with a gripper tip 3 is attached to a gripper shaft 1.
  • the sheet 5 is held non-positively between a gripper pad 4 and a holding surface on the gripper tip 3.
  • an inelastic pressure piece 6 is attached to the gripper tip 3 via an elastic intermediate layer 7.
  • Support is provided in the center of the holding surface by means of a knob 9 (see also FIG. 6).
  • the choice of the angle on the intermediate layer 7 always ensures that when the closing process is initiated, the holding surfaces are parallel to one another even with thick substrates.
  • FIG. 6 The choice of the angle on the intermediate layer 7 always ensures that when the closing process is initiated, the holding surfaces are parallel to one another even with thick substrates.
  • the holding surface of the gripper pad 4 is preferably made of a smooth, elastic material with a hardness of more than 90 ° Shore.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Discharge By Other Means (AREA)

Claims (2)

1. Dispositif de pince de feuilles pour machines imprimantes rotatives à feuilles, dans lequel une pièce de pression non élastique (6) est fixée à un bout de pince (3) par l'intermédiaire d'une couche intermédiaire élastique (7), qui coopère avec une surface de support, disposée sur un corps de base, d'un support de pince (4), caractérisé en ce que la pièce de pression non élastique (6) est réalisée sous forme de plaque compacte, qui est fixée au bout de pince (3) par l'intermédiaire de la couche intermédiaire élastique (7) et s'appuie contre le bout de pince (3) au moyen d'un téton (9) disposé au centre de la plaque. 2. Dispositif selon la revendication 1, caractérisé en ce que le téton (9) est centré dans un guide (6) du bout de pince (3).
EP86110487A 1985-08-19 1986-07-30 Dispositif de pinces pour rotatives à feuille Expired EP0212365B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86110487T ATE38491T1 (de) 1985-08-19 1986-07-30 Bogengreifereinrichtung fuer bogenrotationdruckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853529599 DE3529599A1 (de) 1985-08-19 1985-08-19 Bogengreifereinrichtung fuer bogenrotationsdruckmaschinen
DE3529599 1985-08-19

Publications (3)

Publication Number Publication Date
EP0212365A2 EP0212365A2 (fr) 1987-03-04
EP0212365A3 EP0212365A3 (en) 1987-10-21
EP0212365B1 true EP0212365B1 (fr) 1988-11-09

Family

ID=6278810

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110487A Expired EP0212365B1 (fr) 1985-08-19 1986-07-30 Dispositif de pinces pour rotatives à feuille

Country Status (5)

Country Link
US (1) US4823698A (fr)
EP (1) EP0212365B1 (fr)
JP (1) JPS6251447A (fr)
AT (1) ATE38491T1 (fr)
DE (1) DE3529599A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914646A1 (de) * 1989-05-03 1990-11-08 Heidelberger Druckmasch Ag Greifereinrichtung an bogenrotationsdruckmaschinen
DE3921474A1 (de) * 1989-06-30 1991-01-10 Heidelberger Druckmasch Ag Bogengreifereinrichtung fuer bogenrotationsdruckmaschinen
EP0492138B1 (fr) * 1990-12-21 1995-11-15 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de fixation rapide
JP4753542B2 (ja) * 2003-06-05 2011-08-24 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 被印刷体処理機械のくわえづめ装置
JP4836525B2 (ja) * 2004-09-08 2011-12-14 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 被印刷体枚葉紙くわえづめ
DE102008056239A1 (de) * 2007-11-29 2009-06-04 Heidelberger Druckmaschinen Ag Greifer zum Fördern eines Bogens durch eine drucktechnische Maschine
CN102529332B (zh) * 2011-09-27 2014-09-24 北京印刷学院 一种叼纸牙片

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE493269C (de) * 1930-03-05 Mailaender Fa J G Greifer bei Druckzylindern fuer Druckmaschinen
US1642157A (en) * 1926-11-02 1927-09-13 Robert P Knox Gripper block for printing presses
GB1068514A (en) * 1963-05-03 1967-05-10 Headley Townsend Backhouse Improvements in or relating to suction grippers
DD125551A1 (fr) * 1976-03-22 1977-05-04
US4203303A (en) * 1978-07-28 1980-05-20 The United States Of America As Represented By The United States Department Of Energy Torque-balanced vibrationless rotary coupling
DE7837025U1 (de) * 1978-12-14 1979-05-17 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Spann- und befestigungsvorrichtung fuer aufzuege auf druckmaschinentrommeln
US4437942A (en) * 1980-07-10 1984-03-20 MDC Max Datwyler AG Methods for producing printing plates, and printing plates produced thereby
DD154083A1 (de) * 1980-11-17 1982-02-24 Arndt Jentzsch Bogengreifereinrichtung
US4377974A (en) * 1980-11-28 1983-03-29 David M Company Printing blanket holding bar
US4442772A (en) * 1982-10-26 1984-04-17 American Screen Printing Equipment Company Screen tensioning apparatus
CH653616A5 (fr) * 1983-07-26 1986-01-15 De La Rue Giori Sa Procede de fixation et d'ajustage d'une plaque d'impression sur un cylindre porte-plaques et dispositif de mise en oeuvre.
DE3403893A1 (de) * 1984-02-04 1985-08-14 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Gegendruckzylinder fuer eine bogen-offsetrotationsdruckmaschine
DE3438931A1 (de) * 1984-10-24 1986-04-24 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum passerhaltigen ausrichten einer biegsamen druckplatte auf dem plattenzylinder von rotationsdruckmaschinen

Also Published As

Publication number Publication date
EP0212365A3 (en) 1987-10-21
US4823698A (en) 1989-04-25
JPH0431515B2 (fr) 1992-05-26
EP0212365A2 (fr) 1987-03-04
DE3529599C2 (fr) 1988-06-01
JPS6251447A (ja) 1987-03-06
DE3529599A1 (de) 1987-02-26
ATE38491T1 (de) 1988-11-15

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