EP0732203B1 - Dispositif tendeur - Google Patents

Dispositif tendeur Download PDF

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Publication number
EP0732203B1
EP0732203B1 EP96103837A EP96103837A EP0732203B1 EP 0732203 B1 EP0732203 B1 EP 0732203B1 EP 96103837 A EP96103837 A EP 96103837A EP 96103837 A EP96103837 A EP 96103837A EP 0732203 B1 EP0732203 B1 EP 0732203B1
Authority
EP
European Patent Office
Prior art keywords
plate
prongs
cylinder
tensioning
tensioning device
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
EP96103837A
Other languages
German (de)
English (en)
Other versions
EP0732203A1 (fr
Inventor
Heinz-Walter Reutter
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert 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 Koenig and Bauer Albert AG filed Critical Koenig and Bauer Albert AG
Publication of EP0732203A1 publication Critical patent/EP0732203A1/fr
Application granted granted Critical
Publication of EP0732203B1 publication Critical patent/EP0732203B1/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
    • B41F27/125—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

Definitions

  • the invention relates to a tensioning device for tensioning and a method of loosening flexible plates or from a cylinder of a rotary printing press according to the preamble of claim 1.
  • DE 35 38 308 C2 shows a device for winding a blanket on a blanket cylinder one Rotary printing press.
  • the Blanket cylinder an axially parallel slot on, in the folded ends of a carrier plate Blanket are inserted. These ends are with Provide recesses in the cams of a clamping lever intervention. This clamping lever is attached to the Fasten the front of the blanket cylinder Twisting device swiveled and fixed.
  • the disadvantage of this device is that the Tension lever can twist. This can be uneven Guide the support plate.
  • the invention has for its object a Clamping device for clamping flexible, with bevelled ends on a plate with a slotted cylinder To create rotary printing press.
  • the advantages that can be achieved with the invention are, in particular, that inaccuracies, for. B. the bend of the plate, the perforations of the folded ends or a non-parallel mounting of the tensioning lever with respect to the folded ends of the plate can be compensated.
  • An occurring torsion of the tensioning lever can also be compensated for by the device according to the invention.
  • the uniform tension of the plate along the width avoids overstressing individual plate parts and thus increases the operational reliability of the rotary printing press.
  • the device according to the invention can also advantageously be used to detach the plate from the cylinder, the device serving as a lifter acting on an end face of one leg of the plate.
  • the tensioning device according to the invention and the method to release a plate are shown in the drawing and are described in more detail below.
  • a cylinder 1 of a rotary printing machine for receiving flexible plates 2 with bent ends 3, 4 with at least one slot 8 extending parallel to an axis of rotation and extending from a lateral surface 7 of the cylinder 1 into its interior 6.
  • a leg 9 of the trailing, beveled end 4 of the plate 2 is with a number of z. B. rectangular perforations 11.
  • At the end of 13 of Slot 8 is parallel to slot 8 extending bore 14 is mounted in the cylinder 1. Of the Slot 8 affects the bore 14 in the form of a chord, so that the bore 14 with the slot 8 in connection stands. In this bore 14, a clamping lever 16, for. B.
  • This spindle 16 pivotally mounted.
  • This spindle 16 has a parallel to a pivot axis 17 of the spindle 16 extending groove 18.
  • This groove 18 narrows from a lateral surface 19 of the spindle 16 starting from a Inside the spindle 16 out.
  • the outward-facing part of the groove 18 V-shaped Cross-section with a narrow U-shaped slot connects.
  • U-shaped slot of the groove 18 is a comb-like bar 22 provided with prongs 21 attached. These tines 21 are referred to as Cantilever clamped bar 22 in the circumferential direction of Spindle 16 individually spring loaded.
  • the bar 22 with the prongs 21 is in the present example as comb-like leaf spring executed by means of Spindle 16 is pivotally arranged.
  • the perforations 11 of the trailing end 4 of the plate 2 and the tines 21st are adapted to each other.
  • clamping levers can be arranged on a cylinder 1 be, for example, a clamping lever for each plate.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (7)

  1. Dispositif tendeur pour tendre des plaques souples (2) à extrémités coudées (3, 4) sur un cylindre (1) d'une machine à imprimer rotative, ledit cylindre étant pourvu d'au moins une fente axiale étroite (8) pour recevoir conjointement les extrémités postérieure et antérieure directement accolées (3, 4), et une broche (16) pivotant autour de son axe longitudinal (17) et coopérant avec l'extrémité postérieure (4) pourvue de perforations (11) de la plaque (2) étant montée dans un perçage (14) à l'intérieur (5) dudit cylindre, caractérisé en ce que, sur le levier tendeur (16), sont disposées des dents (21) qui possèdent une élasticité propre dans la direction circonférentielle et qui pénètrent dans les perforations (11) de l'une, (4), des extrémités de la plaque (2).
  2. Dispositif tendeur selon la revendication 1, caractérisé en ce qu'une barrette en forme de peigne (22) pourvue de dents (21) est disposée sur le levier tendeur (16).
  3. Dispositif tendeur selon les revendications 1 et 2, caractérisé en ce que la barrette en forme de peigne (22) est conçue sous la forme d'un ressort à lame.
  4. Dispositif tendeur pour tendre des plaques souples (2) à extrémités coudées (3, 4) sur un cylindre (1) d'une machine à imprimer rotative, ledit cylindre étant pourvu d'au moins une fente axiale étroite (8) pour recevoir conjointement les extrémités postérieure et antérieure (3, 4), et une broche (16) pivotant autour de son axe longitudinal (17) et coopérant avec l'extrémité postérieure (4) pourvue de perforations (11) de la plaque (2) étant montée dans un perçage (14) à l'intérieur (5) dudit cylindre, caractérisé en ce que, sur le levier tendeur (16), sont disposées des dents (21) qui possèdent une élasticité propre dans la direction circonférentielle et qui pénètrent dans les perforations (11) de l'une, (4), des extrémités de la plaque (2), et en ce que les dents (21) du levier tendeur (16) sont montées pour pouvoir être déplacées au-delà de leur position active.
  5. Dispositif tendeur selon la revendication 4, caractérisé en ce que, pour dégager la plaque (2), la face supérieure (26) des dents (21) est disposée pour pouvoir créer une liaison active avec la face frontale (27) d'une aile (9) d'au moins l'une, (4), des extrémités de la plaque (2).
  6. Dispositif tendeur selon la revendication 4, caractérisé en ce que, dans la direction radiale, la longueur (121) des dents (21) placées en position d'extension est calculée pour que les dents (21) dépassent de la face frontale (27) de l'aile (9) de l'extrémité (4) de la plaque (2).
  7. Dispositif tendeur selon la revendication 4, caractérisé en ce qu'une surface d'appui (24) est prévue dans la gorge (18) du levier tendeur (16) pour offrir un appui à la face inférieure (23) des dents (21).
EP96103837A 1995-03-16 1996-03-12 Dispositif tendeur Expired - Lifetime EP0732203B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19509559 1995-03-16
DE19509559A DE19509559C2 (de) 1995-03-16 1995-03-16 Spannvorrichtung

Publications (2)

Publication Number Publication Date
EP0732203A1 EP0732203A1 (fr) 1996-09-18
EP0732203B1 true EP0732203B1 (fr) 1998-09-16

Family

ID=7756853

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103837A Expired - Lifetime EP0732203B1 (fr) 1995-03-16 1996-03-12 Dispositif tendeur

Country Status (4)

Country Link
US (1) US5692443A (fr)
EP (1) EP0732203B1 (fr)
JP (1) JP2956026B2 (fr)
DE (2) DE19509559C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007002029B3 (de) * 2007-01-13 2008-04-10 Koenig & Bauer Aktiengesellschaft Zylinder einer Rollenrotationsdruckmaschine mit einer Vorrichtung zum Befestigen eines biegsamen Aufzugs

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19642141C1 (de) * 1996-10-12 1998-06-18 Koenig & Bauer Albert Ag Vorrichtung zum Lösen von Platten
DE19841912A1 (de) * 1998-09-14 2000-03-16 Roland Man Druckmasch Vorrichtung zum Befestigen von biegsamen Druckformen
US6131513A (en) * 1998-10-23 2000-10-17 Heidelberger Druckmaschinen Ag Printing press with simple lock-up plate cylinder
JP3461487B2 (ja) * 2000-07-06 2003-10-27 株式会社東京機械製作所 印刷胴の被装着体装着装置並びに印刷版及びブランケット
DE10060171C1 (de) * 2000-12-04 2002-05-23 Koenig & Bauer Ag Vorrichtung zum Befestigen eines Aufzuges auf einem Zylinder
FR2844743B1 (fr) * 2002-09-19 2004-12-17 Goss Systemes Graphiques Nante Ensemble comprenant une unite de blanchet et un cylindre a dispositif de fixation de blanchet, cylindre, unite de blanchet et presse offset correspondants
DE602004025604D1 (de) * 2003-11-10 2010-04-01 Day Internat Inc Drucktuchkonstruktion und herstellungsverfahren
DE10360012A1 (de) * 2003-12-19 2005-07-28 Man Roland Druckmaschinen Ag Gummituchplatte zum Aufspannen auf einen Zylinder

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2157621A (en) * 1938-03-29 1939-05-09 Meisel Press Mfg Company Printing cylinder
DE3538308C2 (de) * 1984-11-16 1994-02-24 Wifag Maschf Vorrichtung zum Aufziehen eines Gummituches auf einen Gummituchzylinder einer Rotationsdruckmaschine
DE4415683C2 (de) * 1994-05-04 1998-04-09 Roland Man Druckmasch Vorrichtung zum Befestigen einer biegsamen Druckplatte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007002029B3 (de) * 2007-01-13 2008-04-10 Koenig & Bauer Aktiengesellschaft Zylinder einer Rollenrotationsdruckmaschine mit einer Vorrichtung zum Befestigen eines biegsamen Aufzugs

Also Published As

Publication number Publication date
DE19509559C2 (de) 1997-01-23
EP0732203A1 (fr) 1996-09-18
DE59600552D1 (de) 1998-10-22
US5692443A (en) 1997-12-02
DE19509559A1 (de) 1996-09-19
JP2956026B2 (ja) 1999-10-04
JPH08267715A (ja) 1996-10-15

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