EP0706884A1 - Dispositif pour alimenter des plaques d'impression - Google Patents

Dispositif pour alimenter des plaques d'impression Download PDF

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Publication number
EP0706884A1
EP0706884A1 EP95114505A EP95114505A EP0706884A1 EP 0706884 A1 EP0706884 A1 EP 0706884A1 EP 95114505 A EP95114505 A EP 95114505A EP 95114505 A EP95114505 A EP 95114505A EP 0706884 A1 EP0706884 A1 EP 0706884A1
Authority
EP
European Patent Office
Prior art keywords
plate
printing
cylinder
holding device
feed
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
EP95114505A
Other languages
German (de)
English (en)
Other versions
EP0706884B1 (fr
Inventor
Rüdiger Engelmann
Hans-Jürgen Kusch
Paul Nicola
Peter Marten
Rudi Stellberger
Volker Bergen
Bernd Ruf
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 EP0706884A1 publication Critical patent/EP0706884A1/fr
Application granted granted Critical
Publication of EP0706884B1 publication Critical patent/EP0706884B1/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
    • B41F27/1206—Feeding to or removing from the forme cylinder

Definitions

  • the invention relates to a device for feeding printing plates to plate cylinders of printing machines.
  • EP 0 567 754 A1 discloses a device for feeding printing plates to plate cylinders of printing presses, in which a roller for guiding the printing plate and a suction cup for holding the end of the printing plate are provided. This device can only assume a plate changing position and only printing plates can be fed to a plate cylinder.
  • the invention has for its object to design a device of the type mentioned in such a way that it can be fed to at least two plate cylinders by means of an element for holding and guiding printing plates.
  • a printing plate holding and guiding plate holding device is arranged on the printing press in such a way that it can be moved to at least two printing units in plate changing positions for the plate feed.
  • the advantage of the invention is that it is a simple and inexpensive device, since only one plate holding device is required for changing the printing plate on several plate cylinders. This also makes it easier for the printer to change the plates, since it can insert the new printing plates for several plate cylinders at the same point on the machine.
  • the printing plates can be fed in that the plate holding device itself is equipped with feeding elements or in that in its plate changing positions it is operatively connected to feeding elements which are assigned to these positions. In the latter case, it is possible to design these feed elements differently and thereby to be able to take better account of the spatial conditions.
  • the plate holding device also serves to eject printing plates from the printing units.
  • the printing plate is expediently ejected in the same plate changing positions as the feeding of the printing plates.
  • the plate holding device is arranged pivotably on a cylinder guard.
  • the feed elements can also be arranged on the cylinder guard. If there is still a pivotable arrangement of the cylinder protection on the machine housing, the elements serving to change the pressure plate can be pivoted out of the machine by opening the cylinder protection. In this way, opening the cylinder guard enables optimal access to the plate cylinders.
  • the plate holding device can be designed as a plate feed table, which serves as an aid for a pressure plate feed by hand.
  • the plate feed table can accommodate ejected printing plates.
  • the printing units on which the printing plate is changed by means of the device according to the invention can are two or more identically designed printing units, at least one of the printing units being able to be brought into and out of engagement by means of a pivoting device. It can also be a main printing unit and at least one additional printing unit that can be disengaged.
  • Such machines are generally small offset presses for making one or two-color prints, in which an inexpensive design of the plate changing device is required for cost reasons. This is achieved with the device according to the invention.
  • a particularly fast printing plate change is achieved in that position detection and control elements are set up in such a way that the machine moves to the plate changing positions in the most favorable order.
  • a microswitch detects the position of the plate holding device and the control elements first bring the plate cylinder, on which the plate holding device is in the working position, into the plate changing position. After this plate change, the next plate cylinder moves to the plate change position after the plate holding device has been pivoted into the plate change position for this plate cylinder.
  • At least one of the feed elements is equipped with guide tongues for guiding the pressure plates on their side edges.
  • guide tongues can be designed so that they can be swung away to enable an inclination of printing plates for register correction. This veg swiveling is also necessary for the ejection of such inclined printing plates.
  • a separate ejection chute can also be provided for a plate cylinder. This is particularly useful if the used printing plate would reach the plate feed table with its image side. In such a case, a separate chute prevents the plate feed table from getting dirty with paint.
  • An embodiment provides that in a plate changing position the supply and ejection of printing plates to the plate cylinder of the one printing unit is carried out on one side of the plate feeding table, that after the plate feeding table has been pivoted into the second plate changing position, the feeding of a printing plate from the other side of the plate feeding table to the Plate cylinder of the other printing unit takes place and that the ejection of a printing plate from the additional printing unit takes place by means of a separate ejection chute.
  • Fig. 1 shows a section of a printing press with two printing units 3 and 4.
  • the printing unit 4 can be disengaged via a swivel device. It can either be identical printing units 3 and 4 or a main printing unit 9 and an additional printing unit 10 (for the sake of simplicity, only the second possibility is referred to below).
  • a plate holding device 1, which is designed as a plate feed table 14, can assume a plate change position 2 and a plate change position 2 'shown in broken lines.
  • the plate holding device 1 is fastened to the cylinder guard 5 by means of a pivotable arrangement 18.
  • the plate holding device 1 interacts with a feed element 8 in order to be able to feed a new printing plate to the plate cylinder 13 of the additional printing unit 10.
  • the plate holding device 1 interacts with a feed element 7 and thereby feeds a new printing plate to the plate cylinder 12 of the main printing unit 9.
  • the feed elements 7 and 8 are designed differently depending on the spatial conditions. This takes into account the fact that the plate cylinder 13 of the additional printing unit 10 lies deeper in the machine than the plate cylinder 12 of the main printing unit 9. For this purpose, the feed element 8 is designed accordingly longer, whereby the greater distance between the plate holding device 1 and plate cylinder 13 is bridged is. Rollers 21 can be arranged on both feed elements 7 and 8, which serve to additionally guide the printing plates.
  • the printing plate change takes place as follows:
  • the side 16 of the plate feed table 14 is at the top, on which both the feed 23 of the new printing plate and the ejection 24 of the old printing plate take place. In both cases, the printing plate lies with its image surface facing upward on the side 16 of the plate feed table 14.
  • the side 15 of the plate feed table 14 is at the top.
  • the printing plate for the feed 25 must be placed with the image side in order to achieve a correct clamping of the printing plate on the plate cylinder 13.
  • An ejection chute 17 is provided for ejecting the old printing plate from the plate cylinder 13. The reason for this is the fact that a printing plate to be ejected would otherwise also reach the plate feeding table 14 with its image side, which would lead to contamination of the plate feeding table 14 and thus to the subsequent new printing plate to be fed. Such contamination is avoided by the chute 17.
  • FIG. 1 also shows a rubber cylinder 11 which can receive a two-color job by means of the two plate cylinders 12 and 13, which it passes on to the printing material on a printing cylinder, not shown.
  • the plate cylinders 12 and 13 are equipped with clamping and clamping devices 22 for clamping the printing plates.
  • clamping and tensioning devices 22 release an old pressure plate to be removed on its rear edge, which is conveyed by rotating the plate cylinder 12 or 13 in the ejection direction of the arrows 24 or 26 until a position is reached at which the Front edge of the pressure plate can be released by the clamping and tensioning device 22.
  • Fig. 2 shows a pivotable cylinder protection 5 which carries the device according to the invention.
  • the device according to the invention consisting of the plate holding device 1, the feed elements 7 and 8 and the ejection chute 17, can be pivoted completely out of the machine.
  • the pivoting is represented by arrow 27.
  • a pivotable arrangement 19 is provided on the machine housing 6 for pivoting the cylinder guard 5.
  • the feed element 8 and the discharge chute 17 are also fastened to the cylinder guard 5 with a pivotable arrangement 20, since pivoting 28 is required so that the feed element 8 and the discharge chute 17 do not strike the additional printing unit 10 when the cylinder guard 5 is pivoted 27.
  • the illustration also shows the pivotable arrangement 18 of the plate holding device 1, designed as a plate feed table 14, on the cylinder guard 5.
  • the plate holding device can be moved to the different plate changing positions in a wide variety of ways, it also being possible to use the plate holding device to supply a larger number, for example planetary plate plates arranged around a rubber cylinder, with printing plates, or to accept the used printing plates.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
EP95114505A 1994-10-13 1995-09-15 Dispositif pour alimenter des plaques d'impression Expired - Lifetime EP0706884B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4436559 1994-10-13
DE4436559A DE4436559C2 (de) 1994-10-13 1994-10-13 Vorrichtung zum Zuführen von Druckplatten

Publications (2)

Publication Number Publication Date
EP0706884A1 true EP0706884A1 (fr) 1996-04-17
EP0706884B1 EP0706884B1 (fr) 1998-06-10

Family

ID=6530650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114505A Expired - Lifetime EP0706884B1 (fr) 1994-10-13 1995-09-15 Dispositif pour alimenter des plaques d'impression

Country Status (6)

Country Link
US (1) US5619926A (fr)
EP (1) EP0706884B1 (fr)
JP (1) JPH08174795A (fr)
CN (1) CN1129641A (fr)
AT (1) ATE167114T1 (fr)
DE (2) DE4436559C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8438975B2 (en) 2008-03-18 2013-05-14 Heidelberger Druckmaschinen Ag Printing press

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6113346A (en) 1996-07-31 2000-09-05 Agfa Corporation Method for loading and unloading a supply of plates in an automated plate handler
DE19820331A1 (de) * 1998-05-07 1999-11-11 Roland Man Druckmasch Druckeinheit für den fliegenden Druckplattenwechsel
US6595135B2 (en) * 2001-05-07 2003-07-22 Heidelberger Druckmaschinen Ag Printing unit with automatically moveable tail tucker bar
US20030213387A1 (en) * 2002-05-14 2003-11-20 Heidelberger Druckmaschinen Ag Offset printing press with multi-image plate cylinder
DE102008030438B4 (de) * 2007-07-13 2015-05-28 Heidelberger Druckmaschinen Ag Verbesserter Plattenwechsel in Bogenoffsetdruckmaschinen
GB2457901A (en) * 2008-02-27 2009-09-02 Goss Graphic Systems Ltd Method of inserting printing plate into lock-up slots in plate cylinder
US7848899B2 (en) * 2008-06-09 2010-12-07 Kingtiger Technology (Canada) Inc. Systems and methods for testing integrated circuit devices
DE102008044228B4 (de) * 2008-12-01 2012-11-08 Koenig & Bauer Aktiengesellschaft Druckeinheit mit mindestens einem an ihrer mindestens einen Bedienseite angeordneten Druckformmagazin mit einem diesem Druckformmagazin zugeordneten Formzylinder
US8356215B2 (en) * 2010-01-19 2013-01-15 Kingtiger Technology (Canada) Inc. Testing apparatus and method for analyzing a memory module operating within an application system
US8724408B2 (en) 2011-11-29 2014-05-13 Kingtiger Technology (Canada) Inc. Systems and methods for testing and assembling memory modules
US9117552B2 (en) 2012-08-28 2015-08-25 Kingtiger Technology(Canada), Inc. Systems and methods for testing memory
DE102013218657A1 (de) * 2013-09-18 2015-03-19 Koenig & Bauer Aktiengesellschaft Verfahren zum Recken eines auf einen Zylinder einer Rotationsdruckmaschine aufgespannten Zylinderaufzuges

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922755A (ja) * 1982-07-30 1984-02-06 Komori Printing Mach Co Ltd 枚葉輪転印刷機の刷版保持装置
JPS61248834A (ja) * 1985-04-24 1986-11-06 Mitsubishi Heavy Ind Ltd 枚葉印刷機における刷版交換装置
EP0268857A2 (fr) * 1986-11-20 1988-06-01 Mitsubishi Jukogyo Kabushiki Kaisha Système de commande pour changer automatiquement les clichés d'impression dans une machine offset à feuille
DE4130359A1 (de) * 1991-09-12 1993-03-18 Heidelberger Druckmasch Ag Vorrichtung und verfahren zum ab- und/oder zufuehren von druckplatten einer druckmaschine
EP0567754A1 (fr) 1992-04-29 1993-11-03 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour amener une plaque d'impression à un cylindre de plaque d'une machine à imprimer
WO1994006631A1 (fr) * 1992-09-18 1994-03-31 Koenig & Bauer Aktiengesellschaft Dispositif permettant d'amener des plaques d'impression jusqu'a un cylindre de plaques et a les en eloigner

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003445A1 (de) * 1990-02-06 1991-08-08 Roland Man Druckmasch Automatisches plattenzufuehr- und zylinderbeschickungssystem
JPH0753447B2 (ja) * 1991-01-23 1995-06-07 ボールドウイン商事有限会社 インプリンタの刷版自動脱着装置
US5199942A (en) * 1991-06-07 1993-04-06 Immunex Corporation Method for improving autologous transplantation
EP0530577B1 (fr) * 1991-08-31 1996-06-19 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour positionner un chargeur servant au remplacement automatique des plaques d'impression
DE4129022A1 (de) * 1991-08-31 1993-03-11 Heidelberger Druckmasch Ag Magazin fuer den automatischen druckplattenwechsel
DE4309658C1 (de) * 1993-03-25 1994-10-27 Roland Man Druckmasch Vorrichtung zum automatischen Wechseln von Druckplatten bei Bogenoffsetdruckmaschinen mit mehreren Druckwerken
DE4327013C1 (de) * 1993-08-12 1995-01-12 Heidelberger Druckmasch Ag Druckplatten-Kassette für ein Magazin

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922755A (ja) * 1982-07-30 1984-02-06 Komori Printing Mach Co Ltd 枚葉輪転印刷機の刷版保持装置
JPS61248834A (ja) * 1985-04-24 1986-11-06 Mitsubishi Heavy Ind Ltd 枚葉印刷機における刷版交換装置
EP0268857A2 (fr) * 1986-11-20 1988-06-01 Mitsubishi Jukogyo Kabushiki Kaisha Système de commande pour changer automatiquement les clichés d'impression dans une machine offset à feuille
DE4130359A1 (de) * 1991-09-12 1993-03-18 Heidelberger Druckmasch Ag Vorrichtung und verfahren zum ab- und/oder zufuehren von druckplatten einer druckmaschine
EP0567754A1 (fr) 1992-04-29 1993-11-03 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif pour amener une plaque d'impression à un cylindre de plaque d'une machine à imprimer
WO1994006631A1 (fr) * 1992-09-18 1994-03-31 Koenig & Bauer Aktiengesellschaft Dispositif permettant d'amener des plaques d'impression jusqu'a un cylindre de plaques et a les en eloigner

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 98 (M - 575) 27 March 1987 (1987-03-27) *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 116 (M - 299) 30 May 1984 (1984-05-30) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8438975B2 (en) 2008-03-18 2013-05-14 Heidelberger Druckmaschinen Ag Printing press

Also Published As

Publication number Publication date
DE59502483D1 (de) 1998-07-16
US5619926A (en) 1997-04-15
JPH08174795A (ja) 1996-07-09
ATE167114T1 (de) 1998-06-15
CN1129641A (zh) 1996-08-28
DE4436559C2 (de) 1998-07-02
DE4436559A1 (de) 1996-04-25
EP0706884B1 (fr) 1998-06-10

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