EP1987954B1 - Procédé de manipulation de plaques d'impression - Google Patents

Procédé de manipulation de plaques d'impression Download PDF

Info

Publication number
EP1987954B1
EP1987954B1 EP08008316.5A EP08008316A EP1987954B1 EP 1987954 B1 EP1987954 B1 EP 1987954B1 EP 08008316 A EP08008316 A EP 08008316A EP 1987954 B1 EP1987954 B1 EP 1987954B1
Authority
EP
European Patent Office
Prior art keywords
printing
printing plate
cassette
coding
printing plates
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.)
Not-in-force
Application number
EP08008316.5A
Other languages
German (de)
English (en)
Other versions
EP1987954A3 (fr
EP1987954A2 (fr
Inventor
Norbert Dr. Dylla
Thomas Gsell
Hans Wolf
Thomas Böck
Anton Hamm
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 Web Systems GmbH
Original Assignee
Manroland Web Systems GmbH
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 Manroland Web Systems GmbH filed Critical Manroland Web Systems GmbH
Publication of EP1987954A2 publication Critical patent/EP1987954A2/fr
Publication of EP1987954A3 publication Critical patent/EP1987954A3/fr
Application granted granted Critical
Publication of EP1987954B1 publication Critical patent/EP1987954B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B41F27/1206—Feeding to or removing from the forme cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/50—Devices for storing printing plates

Definitions

  • the invention relates to a method for handling printing plates on a web-fed printing press, namely for the arrangement of printing plates in cartridges serving as printing plate stores in the case of a printing plate change, according to the preamble of claim 1.
  • printing plates To perform a printing plate change printing plates must be handled in the area of a web press. It is important that each plate is fed to the correct printing unit of the correct printing unit of a web press to perform a printing plate change, and that each printing plate is clamped within the correct printing unit at the correct plate cylinder position on the plate cylinder of the printing unit.
  • the printing plates In web-fed presses with a manual printing plate change, the printing plates are manually held ready at the plate cylinder positions of the printing units of the printing units of a web-fed printing press by a printer.
  • printing presses with an automated printing plate change the printing plates are provided at the plate cylinder positions of the printing units of the printing units of a web-fed printing press with the aid of cartridges, which serve as printing plate stores.
  • the printing plates kept in the cassettes can be automatically removed from the cassettes by means of a manipulator arm and automatically fed to the plate cylinders of the printing units.
  • Both with web presses with a manual plate change and with web presses with an automatic plate change can lead to incorrect assignments in a printing plate change, ie printing plates can be fed to the wrong printing units or the wrong plate cylinder positions on a printing unit.
  • this misregistration can take place in that a printer holds a printing plate at a wrong printing unit or at a wrong plate cylinder position for the printing plate change.
  • misregistration can be caused by holding printing plates in wrong cassettes or in wrong receiving positions within a cassette.
  • a method according to the preamble of claim 1 is known from US 4 727 807 A known.
  • the present invention has the object to provide a novel method for handling printing plates. This object is achieved by a method according to claim 1.
  • the method according to the invention makes it possible to ensure that printing plates for carrying out an automated printing plate change are kept ready both in the correct cassettes and in the correct receiving positions within the cassettes which serve as printing plate stores.
  • the arrangement of the printing plates in the cassettes is unambiguous so that misplacements of printing plates on plate cylinders can be reduced to an absolute minimum.
  • the present invention relates to a method for handling printing plates on a web-fed printing press, namely for the arrangement of printing plates in cartridges used in an automated printing plate change as a print-plate storage.
  • each printing plate is provided with a coding, wherein the coding clearly identifies at which plate cylinder position which printing unit which printing unit of a web-fed printing press the respective printing plate is used.
  • the coding is assigned to each printing plate before exposure or exposure or after exposure.
  • the coding contains a clear information about the destination of the printing plate.
  • the coding associated with each printing plate can be embodied as a visually readable bar code or text code. Furthermore, it is possible to assign each printing plate a stored in a non-contact readable RFID tag encoding. Furthermore, it is possible to provide each printing plate by means of a mechanically readable coding, wherein such mechanically readable coding is preferably formed as a punching of the printing plate.
  • Each exposed and coded printing plate is then transported into the area of a cassette.
  • Each cassette accommodates a plurality of printing plates, with the result that several printing plates are transported into the area of each cassette.
  • the coding of the printing plates is preferably read in order to control the transport of the printing plates into the region of the cassettes, depending on the coding. Alternatively, however, it is also possible to transport the printing plates into the area of the cassettes without the information contained in the coding.
  • the coding of the printing plates is read out in the area of each cassette.
  • the reading of the same z As optical, radio waves or mechanical.
  • All printing plates transported in the area of a cassette are sequentially, i. H. successively, in the sense of reading out the coding, checking the coding, releasing the recording positions and positioning them in the respective recording position. Only then, when the handling of a printing plate is completed, the handling of another printing plate is started. The printing plates are thus successively inserted into the respective receiving positions of the respective cassettes.
  • the release of the receiving positions of the cassettes preferably takes place in that a flap assigned to the respective receiving position or a latch is released on the cassette.
  • a printing plate Only after the release of the flap or the bolt based on the reading of the encoding of a printing plate, a printing plate can be inserted into a receiving position of a cassette.
  • the insertion of the printing plates into the receiving positions of the cassettes is monitored so as to detect that a printing plate actually comes into the correct picking position and is completely inserted therein. Should it be determined that a pressure plate is getting into the wrong picking position, or a pressure plate is not being fully inserted into the picking position, an error message is preferably generated.
  • the plates When inserting printing plates into the cassette receiving positions, the plates can continue to be inspected for damage, ensuring that only undamaged plates enter cassettes and are used to change the printing plate. Furthermore, it can be monitored during insertion of the printing plates in the receiving position of the cassettes that the printing plates in the correct orientation, so neither interchanging a leading end and a trailing end of the printing plate still get under swapping a front and back of the printing plate in the receiving position of a cassette.
  • All steps of the method according to the invention can be carried out automatically.
  • the codings can be applied automatically to the printing plates.
  • the transport of the printing plates to the cassettes can be done automatically.
  • the reading of the codes of the printing plates in the area of the cassettes, the checking of the codes as well as the release of the receiving positions and the insertion of the printing plates in the receiving positions of the cassettes can be carried out automatically. This makes it possible to exclude errors caused by manual incorrect operation of printing plates when changing the printing plate.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Claims (7)

  1. Procédé de manipulation de plaques d'impression, à savoir pour disposer des plaques d'impression dans des cassettes servant de réserves de plaques d'impression en cas de changement de plaques d'impression, comportant au moins les étapes suivantes :
    a) étant affecté automatiquement à chaque plaque d'impression, avant son exposition ou pendant son exposition ou après son exposition, un codage indiquant à quelle position du cylindre porte-plaque de quelle imprimante quelle unité d'impression d'une machine d'impression rotative est utilisée,
    caractérisé en ce que
    b) chaque plaque d'impression exposée et codée est transportée automatiquement au niveau d'une cassette, chaque cassette servant à recevoir plusieurs plaques d'impression et plusieurs plaques d'impression étant automatiquement transportées au niveau de chaque cassette en conséquence ;
    c) au niveau de chaque cassette, le codage des plaques d'impression qui se trouvent au niveau de la cassette concernée est automatiquement lu, étant contrôlé automatiquement si les plaques d'impression se trouvent dans la bonne cassette et, si on constate alors que les plaques d'impression se trouvent dans la bonne cassette, une position de réception définie dans la cassette étant automatiquement libérée et la plaque d'impression se positionnant automatiquement dans cette position de réception dans la cassette.
  2. Procédé selon la revendication 1, caractérisé en ce que, dans l'étape a), un code barre ou code texte lisible par système optique est affecté à chaque plaque d'impression.
  3. Procédé selon la revendication 1, caractérisé en ce que, dans l'étape a), un codage à marquage RFID lisible sans contact est affecté à chaque plaque d'impression.
  4. Procédé selon la revendication 1, caractérisé en ce que, dans l'étape a), un codage lisible mécaniquement est affecté à chaque plaque d'impression.
  5. Procédé selon les revendications 1 à 4, caractérisé en ce que, dans l'étape b), pour le transport, le codage des plaques d'impression est lu et, en fonction de cela, chaque plaque d'impression est transportée au niveau d'une cassette.
  6. Procédé selon les revendications 1 à 5, caractérisé en ce que, s'il est constaté dans l'étape c) qu'une plaque d'impression se trouve dans une mauvaise cassette, un message d'erreur est généré.
  7. Procédé selon les revendications 1 à 6, caractérisé en ce que, dans l'étape c), au niveau de chaque cassette, chaque plaque d'impression est manipulée successivement dans l'optique de la lecture du codage, du contrôle des codages, de la libération des positions de réception et du positionnement de celle-ci dans la position de réception, la manipulation d'une autre plaque d'impression n'étant effectuée qu'une fois que cette manipulation d'une plaque d'impression est terminée.
EP08008316.5A 2007-05-03 2008-05-02 Procédé de manipulation de plaques d'impression Not-in-force EP1987954B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007020718A DE102007020718A1 (de) 2007-05-03 2007-05-03 Verfahren zur Handhabung von Druckplatten

Publications (3)

Publication Number Publication Date
EP1987954A2 EP1987954A2 (fr) 2008-11-05
EP1987954A3 EP1987954A3 (fr) 2013-04-10
EP1987954B1 true EP1987954B1 (fr) 2014-04-16

Family

ID=39712359

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08008316.5A Not-in-force EP1987954B1 (fr) 2007-05-03 2008-05-02 Procédé de manipulation de plaques d'impression

Country Status (3)

Country Link
US (1) US20080271630A1 (fr)
EP (1) EP1987954B1 (fr)
DE (1) DE102007020718A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008002679A1 (de) 2008-06-26 2009-12-31 Koenig & Bauer Aktiengesellschaft Vorrichtung zur Anfertigung von an einer Druckmaschine einsatzfertigen Druckformen
EP2673226A1 (fr) 2011-06-28 2013-12-18 WIFAG Maschinenfabrik AG Séparation d'une plaque de pression d'un paquet de plaques de pression
DE102015101737A1 (de) 2015-02-06 2016-08-11 Manroland Web Systems Gmbh Druckmaschine und Verfahren zum Betreiben einer Druckmaschine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4727807A (en) * 1985-09-30 1988-03-01 Tokyo Kikai Seisakusho Apparatus for automatically mounting and removing printing plates in rotary printing press
JPH11254639A (ja) * 1998-03-13 1999-09-21 Toyo Ink Mfg Co Ltd 刷版仕分け搬送方法およびその装置
JPH11348225A (ja) * 1998-06-11 1999-12-21 Toyo Ink Mfg Co Ltd 刷版仕分け収納方法およびそのシステム並びに収納装置
JP3062167B2 (ja) * 1998-11-20 2000-07-10 株式会社東京機械製作所 刷版装着位置指示装置
DE19947221B4 (de) * 1999-10-01 2010-09-30 Koenig & Bauer Aktiengesellschaft Druckplattenkassette
JP3407112B2 (ja) * 2000-10-30 2003-05-19 株式会社東京機械製作所 刷版装着位置判定装置
US6598800B1 (en) * 2002-02-04 2003-07-29 Data2 Incorporated Animal tag
ATE320346T1 (de) * 2003-01-02 2006-04-15 Cerutti Spa Off Mec Vorrichtung und verfahren zum automatischen zuführen und abführen von druckplatten für zylinder von einer flexographischen druckmaschine
DE10314340B3 (de) * 2003-03-28 2004-08-12 Koenig & Bauer Ag Vorrichtung zum Speichern eines an einem Zylinder einer Druckmaschine auszutauschenden Aufzugs
DE102004022089A1 (de) * 2004-05-05 2005-12-01 Man Roland Druckmaschinen Ag Druckplattenkassette für eine Druckmaschine sowie Druckmaschine
DE102005013360B4 (de) * 2005-03-23 2018-09-13 Manroland Web Systems Gmbh Verfahren zum Positionieren von Druckplatten auf Zylindern einer Druckmaschine
DE102006042247A1 (de) * 2005-09-12 2007-03-29 Heidelberger Druckmaschinen Ag Automatische Kassettenausrichtung
DE102005055116A1 (de) * 2005-11-18 2007-05-24 Maschinenfabrik Wifag Druckformzuordnungseinrichtung in einer Rotationsdruckmaschine

Also Published As

Publication number Publication date
EP1987954A3 (fr) 2013-04-10
DE102007020718A1 (de) 2008-11-06
EP1987954A2 (fr) 2008-11-05
US20080271630A1 (en) 2008-11-06

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