EP0276736A2 - Dispositif de tension de plaques d'impression - Google Patents

Dispositif de tension de plaques d'impression Download PDF

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Publication number
EP0276736A2
EP0276736A2 EP88100743A EP88100743A EP0276736A2 EP 0276736 A2 EP0276736 A2 EP 0276736A2 EP 88100743 A EP88100743 A EP 88100743A EP 88100743 A EP88100743 A EP 88100743A EP 0276736 A2 EP0276736 A2 EP 0276736A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
bars
tensioning
tensioned
printing
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.)
Granted
Application number
EP88100743A
Other languages
German (de)
English (en)
Other versions
EP0276736B1 (fr
EP0276736A3 (en
Inventor
Joachim Dorow
Gerhard Bleckmann
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to AT88100743T priority Critical patent/ATE82905T1/de
Publication of EP0276736A2 publication Critical patent/EP0276736A2/fr
Publication of EP0276736A3 publication Critical patent/EP0276736A3/de
Application granted granted Critical
Publication of EP0276736B1 publication Critical patent/EP0276736B1/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
    • 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
    • B41F27/1243—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 pivotal or swivelling motion, e.g. by means of a rocking lever
    • 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
    • B41F27/125—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 on a curvilinear path, e.g. by winding on a roll
    • 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
    • B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler

Definitions

  • the invention relates to a device for tensioning printing plates (hereinafter referred to as plate) for printing presses with two slidably arranged in a cylinder recess and held by two leaf springs and under one end area of the plate to be tensioned, the outer contours of which have a curvature corresponding to the cylinder curvature in the tensioned state and which are each bounded by a pressure surface engaging a bent-over edge claw of the plate to be tensioned, and an elastic hose is inserted between the pressure surfaces of the tensioning strips and the tensioning strips themselves.
  • plate for tensioning printing plates
  • a device of this type is known from patent application P 36 16 425.9.
  • This consists essentially of two clamping bars arranged in a cylinder recess, in which the radially outer end face of the mutually facing, standing legs have a curvature corresponding to the cylinder curvature.
  • the mutually facing, radially outer edges of the two clamping strips are designed as beaked edges with clamping surfaces angled at an acute angle to the circumferential contour, which delimit an outwardly converging clamping channel.
  • the legs of the tensioning strips facing away from one another engage in a respectively assigned, cylinder-side guide groove, which are delimited on the one hand by an area of the side flanks of the cylinder recess, which are provided under the lying legs of the tensioning bars and are undercut.
  • clamping bars are adjustable on the one hand by means of two eccentrics arranged in recesses in the clamping direction of the pressure plates and on the other hand by means of an eccentric arranged concentrically between the leaf springs and the cylinder axis against the clamping direction of the pressure plates.
  • the plate 9 to be clamped is provided in the region of its ends with edge claws 10 which are angled at an acute angle and overlap the clamping surfaces.
  • the edge claws 10 When the edge claws 10 are pressed onto the respectively assigned clamping surface 3, triggered by turning the two eccentrics 11 by 90 °, the elastic hose 7 arranged in the clamping channel 4 and which is filled with gap sealing compound is deformed by the clamping strips 2 in such a way that the gap sealing compound by the openings of the hose is pressed against the outer contour of the cylinder. Above the outer contour in the gap area is a shaped piece 12, which forms the upper limit for the gap closure. In this case, the eccentric 8 has the position shown in FIG. 2. To open the device in order to be able to remove the plate from the cylinder, the eccentrics 11 are first rotated back by 90 °, and then the eccentric 8 is rotated into the position shown in FIG.
  • Another possibility of closing the gap between the two bent-over edge claws of the plate can be such that, after the plate has been tensioned, the gap-sealing compound is pressed into the cavity - formed by the bent-over edge claws of the plate, the hose and the fitting -.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Rotary Presses (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Clamps And Clips (AREA)
EP88100743A 1987-01-24 1988-01-20 Dispositif de tension de plaques d'impression Expired - Lifetime EP0276736B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100743T ATE82905T1 (de) 1987-01-24 1988-01-20 Vorrichtung zum spannen von druckplatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3702032 1987-01-24
DE19873702032 DE3702032A1 (de) 1987-01-24 1987-01-24 Vorrichtung zum spannen von druckplatten

Publications (3)

Publication Number Publication Date
EP0276736A2 true EP0276736A2 (fr) 1988-08-03
EP0276736A3 EP0276736A3 (en) 1989-11-08
EP0276736B1 EP0276736B1 (fr) 1992-12-02

Family

ID=6319442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100743A Expired - Lifetime EP0276736B1 (fr) 1987-01-24 1988-01-20 Dispositif de tension de plaques d'impression

Country Status (5)

Country Link
US (1) US5003878A (fr)
EP (1) EP0276736B1 (fr)
AT (1) ATE82905T1 (fr)
DE (2) DE3702032A1 (fr)
ES (1) ES2037113T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890555A (en) * 1987-06-03 1990-01-02 Motter Printing Press Co. Printing press plate lockup
EP0396220A3 (fr) * 1989-03-30 1991-06-05 Akiyama Printing Machine Manufacturing Company Ltd. Dispositif pour fixer une forme flexible d'impression à un cylindre d'impression
EP0683047A1 (fr) * 1994-03-25 1995-11-22 MAN Roland Druckmaschinen AG Dispositif pour fixer une plaque d'impression

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3806526A1 (de) * 1988-03-01 1989-09-14 Heidelberger Druckmasch Ag Vorrichtung zum spannen von biegsamen druckplatten am plattenzylinder von rotationsdruckmaschinen
DE3936458C1 (fr) * 1989-11-02 1991-04-11 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
US5199352A (en) * 1990-02-24 1993-04-06 Komori Corporation Plate lock-up device for printing press
DE4208209A1 (de) * 1992-03-14 1993-09-16 Heidelberger Druckmasch Ag Vorrichtung zum spannen eines tuches auf ueberfuehrzylindern von bogendruckmaschinen
DE4210316C2 (de) * 1992-03-30 1994-02-24 Heidelberger Druckmasch Ag Klemm- und Spannvorrichtung für eine Druckplatte in einer Druckmaschine
US5355792A (en) * 1992-05-21 1994-10-18 Wearguard Corporation Two-part frame and pre-tensioning device therefor
DE4244077C2 (de) * 1992-12-24 1995-06-08 Koenig & Bauer Ag Vorrichtung zum Aufspannen von biegsamen Druckplatten auf einen Formzylinder einer Rotationsdruckmaschine
DE4326250C2 (de) * 1993-08-05 1996-05-15 Koenig & Bauer Albert Ag Spannvorrichtung in einer Rotationsdruckmaschine
DE19652521C1 (de) * 1996-12-17 1998-03-26 Wifag Maschf Kanalabdeckung für einen Zylinderkanal eines Zylinders in einer Offsetdruckmaschine
US5701823A (en) * 1997-01-27 1997-12-30 Morris; Jerry L. Self aligning tool for registering rotary printing plates and method of registering plates
DE19854526A1 (de) * 1998-11-26 2000-05-31 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zum Spannen eines Zylinderaufzuges auf einem Druckmaschinenzylinder
DE10250684B3 (de) * 2002-10-31 2004-04-01 Koenig & Bauer Ag Verfahren zur Herstellung eines Rotationskörpers und Rotationskörper einer Druckmaschine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012841A (en) * 1956-01-13 1961-12-12 Fairchild Camera Instr Co Sheet cylinder for image reproducing machines
US3043219A (en) * 1957-12-07 1962-07-10 Maschf Augsburg Nuernberg Ag Printing press machinery
US3752075A (en) * 1971-04-26 1973-08-14 Wood Industries Inc Flexible printing plate clamping device
DE2522061A1 (de) * 1975-05-17 1976-11-25 Frankenthal Ag Albert Vorrichtung zum befestigen von biegsamen druckplatten auf dem plattenzylinder von rotationsdruckmaschinen
US4092925A (en) * 1976-08-05 1978-06-06 Fromson H A Lithographic printing plate system
DK159251C (da) * 1983-03-12 1991-02-18 Basf Ag Fremgangsmaade til lukning af spalten mellem en paa et dybtrykapparats trykformcylinder opspaendt dybtrykplades ender, samt indretning ved dybtryksapparatet, til udoevelse af fremgangsmaaden
DE3401760A1 (de) * 1984-01-19 1985-08-01 Albert-Frankenthal Ag, 6710 Frankenthal Vorrichtung zum spannen von druckplatten
US4577560A (en) * 1984-08-20 1986-03-25 R. R. Donnelley & Sons Company Gapless lock-up for offset printing cylinders

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890555A (en) * 1987-06-03 1990-01-02 Motter Printing Press Co. Printing press plate lockup
EP0396220A3 (fr) * 1989-03-30 1991-06-05 Akiyama Printing Machine Manufacturing Company Ltd. Dispositif pour fixer une forme flexible d'impression à un cylindre d'impression
EP0683047A1 (fr) * 1994-03-25 1995-11-22 MAN Roland Druckmaschinen AG Dispositif pour fixer une plaque d'impression

Also Published As

Publication number Publication date
US5003878A (en) 1991-04-02
EP0276736B1 (fr) 1992-12-02
ATE82905T1 (de) 1992-12-15
EP0276736A3 (en) 1989-11-08
ES2037113T3 (es) 1993-06-16
DE3876255D1 (de) 1993-01-14
DE3702032A1 (de) 1988-08-04

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