EP0666171B1 - Dispositif de serrage et de tension dans un cylindre porte-plaque d'une machine à imprimer rotative - Google Patents

Dispositif de serrage et de tension dans un cylindre porte-plaque d'une machine à imprimer rotative Download PDF

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Publication number
EP0666171B1
EP0666171B1 EP95100585A EP95100585A EP0666171B1 EP 0666171 B1 EP0666171 B1 EP 0666171B1 EP 95100585 A EP95100585 A EP 95100585A EP 95100585 A EP95100585 A EP 95100585A EP 0666171 B1 EP0666171 B1 EP 0666171B1
Authority
EP
European Patent Office
Prior art keywords
rail
tensioning
clamping
spring
camshaft
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
EP95100585A
Other languages
German (de)
English (en)
Other versions
EP0666171A1 (fr
Inventor
Rudi Stellberger
Uwe Kleinschmidt
Hans-Jürgen Kusch
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0666171A1 publication Critical patent/EP0666171A1/fr
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1231—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially tangential to support surface

Definitions

  • the invention relates to a device for fastening flexible printing plates on a plate cylinder of rotary printing machines.
  • a known embodiment of this type (DE 37 31 039 A1) discloses a clamping device for flexible pressure plates, in which lever elements clamp and tension the pressure plate via pneumatic or hydraulic elements.
  • EP 0 444 219 A1 shows a device for fastening flexible printing plates on a plate cylinder of a rotary printing press, in which the printing plate can be clamped and clamped during operation without the supply of energy.
  • This has a tensioning rail arranged axially parallel in a cylinder pit, with a clamping rail pivotably attached to the tensioning rail, with a camshaft mounted on the end face of the cylinder and having two pairs of cams, the first pair of cams the tensioning rail against the force of spring elements moves into its receiving position for the pressure plate and then the second pair of cams via pins against the force of spring-lever units opens the clamping rail so far that the trailing plate end can be inserted by rollers, and when the camshaft is rotated in the opposite direction, the clamping rail is released from the spring -Lever units closed and then the tensioning rail is moved into the tensioning position by the spring elements.
  • the object of the present invention is to simplify the clamping and tensioning of the pressure plate and to provide a device which ensures that the pressure plate is clamped and tensioned during operation of the machine without the supply of energy.
  • Spring lever units opens the clamping rail so far that the trailing plate end z. B. can be inserted from a roll and when the camshaft is rotated in the opposite direction, the clamping rail is first closed by the spring lever units and then the clamping rail is moved by the spring elements into the clamping position.
  • the spring elements are arranged between the tensioning rail and camshaft and the spring-lever units are arranged between bearing arms on the tensioning rail and levers on the clamping rail.
  • a clamping device 3 for the leading plate end and a device 4 for attaching a flexible pressure plate 5 to the plate cylinder 2 are provided.
  • the device 4 consists, inter alia, of an axially parallel clamping rail 6 arranged in the pit 1 and a clamping rail 7 fastened to the clamping rail 6.
  • the clamping rail 6 is slidably mounted in the pit 1 of the plate cylinder 2 and carries bolts 8 at both ends which the clamping rail 7 is pivotally mounted.
  • a camshaft 9 is provided, which is rotatably mounted in the end faces of the plate cylinder 2.
  • the camshaft 9 carries two pairs of cams 10, 11, the pair of cams 10 displacing the tensioning rail 6 against the force of spring elements 12 via cam rollers 13.
  • the spring elements 12 are provided on bolts 14, which are mounted in a longitudinally displaceable manner in the tensioning rail 6 and are supported with their opposite head 15 on the camshaft 9.
  • the cam rollers 13 are attached to lever arms 16, which are also connected to the tensioning rail.
  • the second pair of cams 11 presses when the camshaft is rotated counterclockwise, pins 17 which are fastened to the clamping rail 7, so that the clamping rail 7 opens and assumes the position shown in FIG. 2.
  • the opening of the clamping rail 7 also takes place against the force of springs 18, which are actuated by levers 19, which in turn are attached to the clamping rail 7.
  • the springs 18 can be actuated via plungers 20, which are fastened on one side via pins 21 to the levers 19 and on the other side via pins 22 on the bearing arms 16.
  • Fig. 1 the pressure plate 5 is clamped between the clamping rail 6 and the clamping rail 7 and the clamping rail with the clamping rail is displaced to the right by the force of the spring elements 12, so that the pressure plate 5 is clamped on the outer surface of the plate cylinder 2.
  • the camshaft 9 is rotated clockwise in its starting position (as shown). If the camshaft 9 is now rotated counterclockwise, the tensioning rail 6 with the clamping rail 7 is first moved to the left via the cam roller 13 and the pressure plate is thus relaxed. The clamping rail 7 is then opened via the second pair of cams 11 and the pins 17, as shown in FIG. 2. Here, the tensioning rail 6 is in its left starting position.
  • a new printing plate 5 is now placed on the plate cylinder 2, it is first clamped by the clamping device 3 at its front end and pressed onto the outer surface of the plate cylinder 2 by rotating the plate cylinder 2 counterclockwise by means of rollers 23 fixedly mounted on the side frames.
  • the rollers 23 press the trailing plate end 24 into the position shown, so that the wide-opening clamping rail 7 can be closed and the plate end 24 clamped, as shown in FIG 1 is shown.
  • the pressure plate is tensioned by moving the tensioning rail 6 with the clamping rail 7 to the right.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (2)

  1. Dispositif de fixation de plaques souples d'impression sur un cylindre porte-plaque (2) de machines rotatives à imprimer, comprenant
    • une barre de tension (6) disposée parallèlement à l'axe dans une cavité (1) du cylindre,
    • une barre de serrage (7) montée pivotante sur la barre tendeuse (6),
    • un arbre à cames (9) monté dans les côtés extrêmes du cylindre (2) et comportant deux paire de cames (10, 11),
    • la première paire de cames (10) déplaçant la barre de tension (6) à l'encontre de la force d'éléments de ressort (12) pour la mettre à la position de réception de la plaque d'impression (5) et ensuite la deuxième paire de cames (11) ouvrant la barre de serrage (7) au moyen de tenons (17) contre la force d'ensembles à ressort (18) et levier (19) suffisamment pour que des galets (23) puissent mettre en place l'extrémité aval (24) de la plaque
    • et, lors de la rotation de l'arbre à cames (9) dans le sens inverse, les ensembles à ressort (18) et levier (19) ferment tout d'abord la barre de serrage (7) et ensuite les éléments de ressort (12) déplacent la barre de tension (6) pour la mettre en position de traction,
    caractérisé
    • en ce que la première paire de cames (10) déplace la barre de tension (6), pour la mettre à sa position de réception de la plaque d'impression, au moyen de galets de came (13) et en ce que les éléments de ressort (12) sont disposés entre la barre de tension (6) et l'arbre à cames (9).
  2. Dispositif selon la revendication 1,
    caractérisé
    • en ce que les ensembles à ressort (18) et levier (19) sont disposés entre des bras de support (16) solidaires de la barre de tension (6) et des leviers (19) solidaires de la barre de serrage (7).
EP95100585A 1994-02-03 1995-01-18 Dispositif de serrage et de tension dans un cylindre porte-plaque d'une machine à imprimer rotative Expired - Lifetime EP0666171B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9401760U DE9401760U1 (de) 1994-02-03 1994-02-03 Plattenzylinder von Rotationsdruckmaschinen
DE9401760U 1994-02-03

Publications (2)

Publication Number Publication Date
EP0666171A1 EP0666171A1 (fr) 1995-08-09
EP0666171B1 true EP0666171B1 (fr) 1997-09-03

Family

ID=6904069

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100585A Expired - Lifetime EP0666171B1 (fr) 1994-02-03 1995-01-18 Dispositif de serrage et de tension dans un cylindre porte-plaque d'une machine à imprimer rotative

Country Status (5)

Country Link
US (1) US5495804A (fr)
EP (1) EP0666171B1 (fr)
JP (1) JP3014242U (fr)
AT (1) ATE157597T1 (fr)
DE (2) DE9401760U1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29601400U1 (de) * 1996-01-27 1996-03-07 MAN Roland Druckmaschinen AG, 63075 Offenbach Vorrichtung zum Lagefixieren und Lösen von drehbar gelagerten Teilen in Druckmaschinen
JPH1120131A (ja) * 1997-07-03 1999-01-26 Ryobi Ltd 印刷機の刷版咥え装置
JP2001260320A (ja) * 2000-03-14 2001-09-25 Fuji Photo Film Co Ltd 可撓性刷版の装着方法および装着装置
DE102008047191A1 (de) * 2007-10-01 2009-04-02 Heidelberger Druckmaschinen Ag Vorrichtung zum Befestigen einer Druckplatte auf einem Plattenzylinder einer Druckmaschine
DE202018001624U1 (de) * 2018-03-28 2019-07-03 Herold Maschinenbau Gmbh Klemmvorrichtung zur Befestigung von Druckplatten auf einem Plattenzylinder

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA563729A (fr) * 1958-09-23 F. Mitchell Lester Agrafe pour feuilles maitresses de machines rotatives a imprimer
US2822754A (en) * 1950-05-29 1958-02-11 William F Huck Plate lock-up mechanisms for printing machines
US3156184A (en) * 1962-02-20 1964-11-10 Harris Intertype Corp Plate clamp
DE1248062B (de) * 1963-06-22 1967-08-24 Adamovske Strojirny Np Klemmgreifereinrichtung am Druckzylinder von Druckmaschinen
GB1300575A (en) * 1969-07-01 1972-12-20 Baker Perkins Ltd Improvements in printing plate locking devices
FR2147392A5 (fr) * 1971-07-26 1973-03-09 Hugonnier Charles
DE3731039A1 (de) * 1987-09-16 1989-03-30 Koenig & Bauer Ag Einrichtung zum klemmen biegsamer druckplatten auf dem plattenzylinder einer rotationsdruckmaschine
EP0444219B1 (fr) * 1990-02-24 1994-07-13 Komori Corporation Dispositif pour l'enclenchement des plaques dans une presse
EP0492138B1 (fr) * 1990-12-21 1995-11-15 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif de fixation rapide
ATE113901T1 (de) * 1990-12-31 1994-11-15 Heidelberger Druckmasch Ag Klemm- und spanneinrichtung.
US5142305A (en) * 1991-03-04 1992-08-25 Eastman Kodak Company Apparatus for clamping and ejecting a receiver in a printing operation
JP2568417Y2 (ja) * 1991-11-13 1998-04-15 株式会社小森コーポレーション 印刷機の版万力装置
DE4214168C2 (de) * 1992-04-30 1994-10-06 Roland Man Druckmasch Vorrichtung zum Aufspannen von Druckplatten auf dem Plattenzylinder von Druckmaschinen, insbesondere Bogenoffsetdruckmaschinen
DE4244279C2 (de) * 1992-12-28 1995-05-18 Heidelberger Druckmasch Ag Druckformkorrektureinrichtung zum Ausgleich von Druckträgerdehnungen

Also Published As

Publication number Publication date
EP0666171A1 (fr) 1995-08-09
DE9401760U1 (de) 1994-03-17
US5495804A (en) 1996-03-05
DE59500576D1 (de) 1997-10-09
ATE157597T1 (de) 1997-09-15
JP3014242U (ja) 1995-08-08

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