EP0995596B1 - Dispositif et procédé pour la mise en oeuvre d'un changement de plaques en marche - Google Patents

Dispositif et procédé pour la mise en oeuvre d'un changement de plaques en marche Download PDF

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Publication number
EP0995596B1
EP0995596B1 EP99117404A EP99117404A EP0995596B1 EP 0995596 B1 EP0995596 B1 EP 0995596B1 EP 99117404 A EP99117404 A EP 99117404A EP 99117404 A EP99117404 A EP 99117404A EP 0995596 B1 EP0995596 B1 EP 0995596B1
Authority
EP
European Patent Office
Prior art keywords
plate
printing
cylinder
plate cylinder
printing plate
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
EP99117404A
Other languages
German (de)
English (en)
Other versions
EP0995596A1 (fr
Inventor
Robert Lemelin Michael
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 EP0995596A1 publication Critical patent/EP0995596A1/fr
Application granted granted Critical
Publication of EP0995596B1 publication Critical patent/EP0995596B1/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
    • 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
    • B41P2227/60—Devices for transferring printing plates
    • B41P2227/62—Devices for introducing printing plates
    • 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
    • B41P2227/60—Devices for transferring printing plates
    • B41P2227/63—Devices for removing printing plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/36—Means for registering or alignment of print plates on print press structure

Definitions

  • the present invention relates to an apparatus and a method for carrying it out a flying plate change on a plate cylinder of a printing unit according to the The preamble of claims 1, 7 and 10.
  • a printing unit usually comprises a plurality of rollers that are on a or transfer color to both sides of the paper webs.
  • An inking unit comprises a large number of rollers in rolling contact, by means of which the printing plates of each Printing ink is fed. The color to be fed to the printing plates precisely dosed so that a uniform color film of the desired thickness on the printing plates is transmitted.
  • a pressure plate change is e.g. B. required if a newspaper has different regional editions different advertisements should be printed. Because of the relatively rigid arrangement of the printing units and the limited space in a print shop are the Printing units are difficult to access for printers, which makes plate changing difficult.
  • DE 196 03 666 describes e.g. B. one Plate change, in which a plate cylinder is parked by the blanket cylinder and is stopped.
  • a protective device is inserted in between to make sure that nothing caught in the moving parts of the press and the printer protected is.
  • inserting a guard between the cylinders requires too much Space and makes it necessary to move all the cylinders of the printing unit apart, for what the entire printing unit of a conventional printing press has to be redesigned, which reduces the possibility of performing a flying plate change becomes cost effective.
  • EP 0734 859 A1 already describes a device for changing printing forms known, which is a pivotable printing form loading unit and by means of an actuating unit includes roll adjustable to a surface of a printing unit cylinder.
  • a leading edge a printing form stored in the loading unit is in a clamping device of the Cylinder hooked in and clamped, after which by rotating the cylinder when the Roll the printing form out of the loading unit and onto the surface of the Printing unit cylinder is pulled up until finally the rear edge also from the Clamping device is detected and clamped. Peeling off the printing form from that Printing unit cylinder takes place in reverse order, whereby also the printing form by the roller on the curvature of the surface of the printing form cylinder is nestled.
  • the roller can be an existing roller, such as a dampening roller. A separate pressure roller is not required.
  • GB 2309668 describes a printing unit of a web-fed rotary offset printing machine described in which the blanket cylinder in contact with during a plate change remain on the material web.
  • a plate cylinder can be used to carry out a Plate change can be stopped by a transfer cylinder.
  • Another object of the invention is to provide the space between the Blanket cylinder and the plate cylinder, the printing plates of which are replaced, to decrease while still ensuring that nothing moves in the moving Components of the printing unit caught.
  • the present invention relates to a web-fed rotary printing press in which the Carrying out a flying plate change is possible and contacting one Moving blanket cylinder associated with the plate cylinder through the printing plate is prevented.
  • a pressure roller or pressure roller provided, by means of which the pressure plate is securely against the plate during the plate change Plate cylinder is pressed so that a narrow space between the parked, stopped plate cylinder and the rotating blanket cylinder sufficient. In this way, a redesign of the printing unit with regard to a Extended movability of the inking unit and the plate cylinder is not necessary.
  • a Web-fed rotary printing machine for printing a first web Printing unit section for printing on one side of the material web and a second one Printing unit section for printing on the other side of the material web, the second Printing unit section a blanket cylinder, a plate cylinder and a press roller which includes pressure on the corresponding plate cylinder during the plate change can exercise.
  • a method for performing a flying plate change in a web-fed rotary printing press which has at least two printing unit sections each a blanket cylinder, a plate cylinder and a press roll, which during a plate change exerts pressure on the plate cylinder, consists of the following process steps:
  • the plate cylinder is in one of the at least two Printing unit sections from the corresponding blanket cylinder, and on the Plate cylinder in this printing unit section is by means of the press roller during Plate changing pressure exerted.
  • Fig. 1 shows an extract from a cross section of an exemplary invention Web-fed rotary printing press that has at least one tower arrangement 110 for printing a web 120 comprising a single or multi-color image.
  • the web 120 may e.g. B. be between 1200 and 1600 mm wide or have any other width.
  • the Web 120 moves substantially in a straight line through the tower assembly 110, e.g. B. How is shown in Fig. 1, in the vertical direction. However, it can also be essentially horizontal direction or along a substantially straight line of motion in any angle to the vertical direction shown through the Move tower assembly 110.
  • the tower arrangement 110 shown comprises four printing units 130, 135, 140 and 145, which web 120 each with an image in any color of a variety of colors print.
  • Each printing unit comprises two sections, each one side of the web print.
  • the tower arrangement 110 include more or fewer printing units.
  • Printing units may be provided.
  • FIG. 2 shows a side view of the printing unit 130 according to an embodiment of the present invention.
  • the web 120 runs between the blanket cylinders 240 and 250 through and is printed by these on both sides.
  • On the assigned Plate cylinders 230 and 260 have printing plates attached to them which are to be printed Pictures included.
  • Each of the printing plates applied to the plate cylinders 230 and 260 is a dampening solution, z. B. water and over the Inking units 210 and 280 ink supplied.
  • the fountain solution is known to be certain locations on the printing plates applied to the plate cylinders 230 and 260 color-repellent, so that the color applied to the remaining areas of the printing plate represents printing image.
  • the color boxes 215 and 285 contain the color that over the Inking units 210 and 280 are fed to the printing plates.
  • Fig. 3 shows the positions of the plate and blanket cylinder when performing a flying plate change according to an exemplary embodiment of the present Invention.
  • the plate cylinder is on one side of the web turned off from the blanket cylinder assigned to him.
  • Fig. 3 is a plate change shown on the right side of the printing unit 130, the plate cylinder 260 from the Blanket cylinder 250 is turned off.
  • the left side of the printing unit can be designed accordingly, so that a pressure plate change on this side, apart that the direction of rotation of the plate cylinder z. B. opposite to the direction of rotation of the plate cylinder 260 runs on the right side, can be done in the same way.
  • a press roll 300 is sufficient to carry out a Printing plate change a gap of about 2.5 mm wide. Because of achieving this Gap only minimal movement of the plate cylinder 260 is required Inking unit 280 and dampening unit 270 of the printing unit cannot be moved significantly. After the plate cylinder 260 has been stopped by the blanket cylinder 250, be stopped to perform a plate change without doing the rest Rollers of the printing unit 130 are affected, so that on the opposite On the side of the web 120, the printing process with the blanket cylinder 250 still rotating can continue. The printing process by which to perform a The plate cylinder 260 can be changed from a plate individual additional printing unit section provided in the printing press be taken over.
  • the press roll 300 comes into contact with the Bring plate cylinder 260 or with a pressure plate arranged thereon and exercises Pressure on this / n, so that a resistance force arises, that of the rotary movement counteracts.
  • the press roll 300 prevents during the plate change (i.e. both movement when removing the pressure plate and when applying the pressure plate) the printing plate in the direction of the blanket cylinder 250 and thus prevents that the printing plate is caught in the blanket cylinder 250.
  • the press roller 300 presses the plate down against the plate cylinder and thus serves as a load against which the pressure plate can be removed.
  • a protection device 310 may be inserted to ensure that during the flying plate change not unnoticed objects between the moving Blanket cylinder of the printing unit.
  • a pneumatically operated either manually from a printer or Automatically operated suction cup 410 on the on the Plate cylinder 260 arranged pressure plate can be attached, for. B. at the in one Gap 420 attached to the plate cylinder 260 trailing edge of the plate to this from the Lift off the surface of the plate cylinder 260.
  • the pressure plate 500 together with the suction cup 410 of lifted the surface of the plate cylinder 260.
  • the trailing edge 510 of the The pressure plate 500 is preferably folded, so that the plate easily fits into the gap 420 can be inserted on the plate cylinder 260.
  • the pressure roller exerts 300 pressure on the Pressure plate 500, the printer can remove the suction cup 410 from the pressure plate 500 remove and slowly turn the plate cylinder clockwise to the Pressure plate 500 z. B. to remove by hand.
  • the pressure roller 300 permanently exerts pressure on the plate cylinder 260 remaining part of the pressure plate 500, thereby preventing the Pressure plate springs away and in contact with the rotating blanket cylinder 250 device. After the plate cylinder 260 has rotated sufficiently, it can also be moved in the leading edge of the pressure plate 500 fastened to the gap 420 can be removed.
  • the pressure roller 300 prevents the new printing plate 500 from being applied during the application springing the plate cylinder 260 away and in contact with the rotating one Blanket cylinder 250 device.
  • the use of a press roll 300 when applying a Pressure plate 500 also enables the pressure plate 500 to be automatically tensioned around the plate cylinder 260, which is also smoother and more effective than a manual one clamping of the pressure plate 500.
  • the use of a press roller 300 enables further inserting a protection device 310 further forward in the printing unit, thereby increased safety and the displacement of the plate cylinder necessary for parking Printing unit cylinder is reduced.
  • a motor 320 or a friction element as a brake for adjusting the Resistance force of the press roll 300 can be used.
  • the Resistance of the platen roller 300 while pressing on the plate cylinder 260 too can be controlled via a torsion spring 330.
  • the torsion spring 330 can the press roll 300 is brought into contact with the plate cylinder 260, the Tension of the torsion spring according to the direction and speed of rotation Plate cylinder 260 can be changed.
  • the tension in the spring increases as it decreases a printing plate 500 is reduced from the plate cylinder. In both cases, the practice Press roll 300 the desired force on the plate cylinder 260.

Landscapes

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

Claims (12)

  1. Machine à imprimer rotative à rouleaux, pour l'impression d'une bande de matériau (120) avec un groupe d'impression (130, 135, 140, 145) comprenant un cylindre porte-blanchet (240, 250) et un cylindre porte-plaque (230, 260) portant une plaque d'impression (500) et avec un cylindre de pression (300), pouvant être réglé pendant le changement de plaque d'impression sur le cylindre porte-plaque (230, 260), afin d'exercer une force de pressage sur la plaque d'impression (500),
       caractérisée par
       des moyens (320, 330), au moyen desquels une force de résistance agissant dans le sens de rotation du cylindre de pression (300) peut être réglée.
  2. Machine à imprimer rotative à rouleaux selon la revendication 1, caractérisée en ce que les moyens comprennent un moteur (320) agissant comme frein ou un élément de friction.
  3. Machine à imprimer rotative à rouleaux selon la revendication 1, caractérisée en ce que les moyens comprennent un ressort de torsion (330) pour régler ou commander la force de résistance du cylindre de pression (300).
  4. Machine à imprimer rotative à rouleaux selon l'une des revendications précédentes, caractérisée par un dispositif protecteur (310) disposé dans l'environnement des cylindres porte-blanchet (240, 250).
  5. Machine à imprimer rotative à rouleaux selon l'une des revendications précédentes, caractérisée par un dispositif aspirant (410) à fonctionnement pneumatique, au moyen duquel la plaque d'impression (500) peut être prélevée du cylindre porte-plaque (230, 260).
  6. Machine à imprimer rotative à rouleaux selon l'une des revendications précédentes, caractérisée en ce qu'un autre groupe d'impression (130, 135, 140, 145) est prévu, et en ce que le changement de plaque d'impression se fait en marche.
  7. Procédé de changement d'une plaque d'impression (500) dans un groupe d'impression (130, 135, 140, 145) présentant un cylindre porte-blanchet (240, 250) et un cylindre porte-plaque (230, 260) portant la plaque d'impression, d'une machine à imprimer rotative à rouleaux, comportant les étapes de procédé consistant à :
    désolidariser le cylindre porte-plaque (230, 260) du cylindre porte-blanchet (240, 250),
    freiner le cylindre porte-plaque (230, 260) jusqu'à ce que celui-ci se trouve au repos,
    appliquer un cylindre de pression sur la surface périphérique du cylindre porte-plaque (230, 260), ainsi que
    soulever une extrémité de la plaque d'impression (500) et extraire la plaque d'impression (500) lorsque le cylindre de pression (300) est appliqué, par une rotation du cylindre porte-plaque (230, 260),
       caractérisé en ce que
       le cylindre de pression (300) est sollicité avec une force de résistance agissant dans le sens de rotation du cylindre de pression (300).
  8. Procédé selon la revendication 7, caractérisé en ce que le soulèvement d'une extrémité de la plaque d'impression (500) est effectué au moyen d'un dispositif aspirant (410).
  9. Procédé selon la revendication 7, caractérisé en ce que le soulèvement d'une extrémité de la plaque d'impression (500) vis-à-vis du cylindre porte-plaque (230, 260) est effectué à la main.
  10. Procédé de changement d'une plaque d'impression (500) dans un groupe d'impression (130, 135, 140, 145) présentant un cylindre porte-blanchet (240, 250) et un cylindre porte-plaque (230, 260) portant la plaque d'impression, d'une machine à imprimer rotative à rouleaux, présentant les étapes de procédé ci-après :
    fixation d'une extrémité de la plaque d'impression (500) sur la périphérie du cylindre porte-plaque (230, 260) désolidarisé du cylindre porte-blanchet (240, 250) associé,
    application d'un cylindre de pression (300) sur le cylindre porte-plaque (230, 260) dans la zone de la plaque d'impression (500), et
    mise en rotation du cylindre porte-plaque (230, 260) lorsque le cylindre de pression (300) est appliqué, de manière que la plaque d'impression (500) soit passée autour de la périphérie du cylindre porte-plaque (230, 260),
       caractérisé en ce que
       le cylindre de pression (300) est sollicité avec une force de résistance agissant dans le sens de rotation du cylindre de pression (300).
  11. Procédé selon la revendication 10, caractérisé en ce que la plaque d'impression (500) est maintenue par un dispositif aspirant (410) pendant la rotation du cylindre porte-plaque (230, 260).
  12. Procédé selon la revendication 10, caractérisé en ce que la plaque d'impression (500) est maintenue à la main pendant la rotation du cylindre porte-plaque (230, 260).
EP99117404A 1998-10-19 1999-09-07 Dispositif et procédé pour la mise en oeuvre d'un changement de plaques en marche Expired - Lifetime EP0995596B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US174595 1998-10-19
US09/174,595 US6125757A (en) 1998-10-19 1998-10-19 Method and apparatus for performing a flying printing plate change

Publications (2)

Publication Number Publication Date
EP0995596A1 EP0995596A1 (fr) 2000-04-26
EP0995596B1 true EP0995596B1 (fr) 2003-07-09

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EP99117404A Expired - Lifetime EP0995596B1 (fr) 1998-10-19 1999-09-07 Dispositif et procédé pour la mise en oeuvre d'un changement de plaques en marche

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US (1) US6125757A (fr)
EP (1) EP0995596B1 (fr)
JP (1) JP2000117941A (fr)
DE (2) DE59906248D1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100564781B1 (ko) * 2001-04-09 2006-03-27 쾨니히 운트 바우어 아크티엔게젤샤프트 인쇄기의 인쇄 장치
DE10248689A1 (de) 2001-11-16 2003-05-28 Heidelberger Druckmasch Ag Verfahren zum automatischen Wechseln einer Druckplatte sowie entsprechende Rotationsdruckmaschine
DE10247587A1 (de) * 2002-10-11 2004-04-22 Man Roland Druckmaschinen Ag Verfahren zur Montage und Demontage flexibler Druckplatten
JP4904018B2 (ja) * 2004-05-04 2012-03-28 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 刷版搬送のための方法及び装置
US20070022885A1 (en) * 2005-07-27 2007-02-01 Goss International Americas, Inc. Method and apparatus for preventing plate cylinder contamination during a plating process
DE102006061316B4 (de) * 2006-12-22 2014-11-20 Koenig & Bauer Aktiengesellschaft Vorrichtung mit mehreren jeweils in einem Abstand zueinander angeordneten Speicherebenen
DE102010012280A1 (de) * 2010-03-22 2011-09-22 Heidelberger Druckmaschinen Ag Verfahren zum Wechseln von Druckplatten in Rotationsdruckmaschinen mit mehreren Druckwerken
DE102011089881A1 (de) * 2011-12-23 2013-06-27 Koenig & Bauer Aktiengesellschaft Einrichtung und Verfahren zum Aufziehen von Druckplatten auf Plattenzylindern von Druckmaschinen
DE102011089879A1 (de) * 2011-12-23 2013-06-27 Koenig & Bauer Aktiengesellschaft Einrichtung und Verfahren zum Aufziehen von Druckplatten auf Plattenzylindern von Druckmaschinen

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE19603666A1 (de) * 1996-02-02 1997-08-07 Roland Man Druckmasch Schutzvorrichtung an Druckwerkzylindern

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DE4130359C2 (de) * 1991-09-12 1997-04-17 Heidelberger Druckmasch Ag Vorrichtung zum Ab- und/oder Zuführen von Druckplatten einer Druckmaschine
JPH0544537U (ja) * 1991-11-22 1993-06-15 株式会社小森コーポレーシヨン 回転体間の接触圧制御装置
JP3194199B2 (ja) * 1992-01-17 2001-07-30 株式会社小森コーポレーション 版胴への刷版装着装置
DE4213472C2 (de) * 1992-04-24 1994-05-26 Heidelberger Druckmasch Ag Vorrichtung zum Fördern flexibler Druckformen
JP2929508B2 (ja) * 1994-01-17 1999-08-03 ケーニツヒ ウント バウエル−アルバート アクチエンゲゼルシヤフト フック縁部を備えた容易にたわみ可能なシート状の対象物の取り付け、取り外し及び搬送のための装置
DE4414443C1 (de) * 1994-04-26 1995-11-30 Heidelberger Druckmasch Ag Vorrichtung zum Führen eines Druckträgers
DE4438754C2 (de) * 1994-10-29 1998-02-19 Roland Man Druckmasch Aufhängung für ein an einem Zylinder einer Druckmaschine an- und abstellbares Andrückelement
ES2143746T3 (es) * 1995-03-07 2000-05-16 Plasser Bahnbaumasch Franz Maquina bateadora, configuracion maquinaria y procedimiento para el bateado inferior de una via.
FR2732267B1 (fr) * 1995-03-31 1997-06-20 Heidelberg Harris Sa Dispositif de changement de formes d'impression
DE19548819B4 (de) * 1995-12-27 2004-01-29 Koenig & Bauer Ag Druckwerk
DE19603663A1 (de) * 1996-02-02 1997-08-07 Roland Man Druckmasch Druckwerk für den fliegenden Druckplattenwechsel

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE19603666A1 (de) * 1996-02-02 1997-08-07 Roland Man Druckmasch Schutzvorrichtung an Druckwerkzylindern

Also Published As

Publication number Publication date
DE19942617A1 (de) 2000-04-20
JP2000117941A (ja) 2000-04-25
DE59906248D1 (de) 2003-08-14
EP0995596A1 (fr) 2000-04-26
US6125757A (en) 2000-10-03

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