EP1157830A1 - Dispositif et procédé pour changer l'image d'impression pendant l'opération d'une machine d'impression - Google Patents

Dispositif et procédé pour changer l'image d'impression pendant l'opération d'une machine d'impression Download PDF

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Publication number
EP1157830A1
EP1157830A1 EP01111910A EP01111910A EP1157830A1 EP 1157830 A1 EP1157830 A1 EP 1157830A1 EP 01111910 A EP01111910 A EP 01111910A EP 01111910 A EP01111910 A EP 01111910A EP 1157830 A1 EP1157830 A1 EP 1157830A1
Authority
EP
European Patent Office
Prior art keywords
image
cylinder
auxiliary
blanket
printing machine
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
EP01111910A
Other languages
German (de)
English (en)
Other versions
EP1157830B1 (fr
Inventor
David Clarke Pollock
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 EP1157830A1 publication Critical patent/EP1157830A1/fr
Application granted granted Critical
Publication of EP1157830B1 publication Critical patent/EP1157830B1/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
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/04—Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/08—Rotary lithographic machines for offset printing using one transfer cylinder co-operating with several forme cylinders for printing on sheets or webs, e.g. sampling of colours on one transfer cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2217/00—Printing machines of special types or for particular purposes
    • B41P2217/10—Printing machines of special types or for particular purposes characterised by their constructional features
    • B41P2217/13—Machines with double or multiple printing units for "flying" printing plates exchange

Definitions

  • the present invention relates to the field of offset printing.
  • the The present invention relates to a device for changing a print image bearing Plates in an offset printing press when the printing press is in operation.
  • Offset presses are well known in printing technology.
  • a blanket cylinder and an image cylinder or plate cylinder for printing on one side of a web of material (e.g. paper) that is in contact with the Blanket cylinder is.
  • the blanket cylinder receives a color image from the image cylinder and transfers this image to the material web.
  • the image cylinder usually includes one a plate carrying a printed image on which the image to be printed is located.
  • the Image cylinder can alternatively be a cassette with imageable material that was previously was imaged or imaged by an imaging device in the printing press becomes.
  • every blanket cylinder is usually included connected to a single image cylinder.
  • the timing has come to replace the image-bearing plate or cassette, either because of of maintenance requirements or because a new image needs to be printed, it is necessary to stop the press.
  • a single image cylinder to transfer an image is used on the blanket cylinder, it is not possible to Let the printing machine run while the image-bearing plate is on or the cassette is in is removed from the image cylinder and replaced.
  • Stopping the press to replace an image-bearing plate or cassette acts as an interruption in printing that affects the entire printing process slowed down.
  • This Delays are the result of the risk of the web breaking if the Printing process is started again and the printing press at full speed starts up.
  • Starting and stopping the printing press to replace the image-bearing ones Plate or cassette increases the risk of a web break, which in turn leads to additional ones Delays can result when the web is fed back into the press must be removed and possible remnants of web must be removed from it.
  • the present invention relates to an apparatus and a method for making this possible the exchange of image-bearing plates or cassettes in an offset printing machine, without stopping the press.
  • the present invention is eliminated hence the problems of conventional methods, the possible delays of the Printing process caused because the printing press for removal and Replacing the image-bearing plate or cassette must be stopped.
  • each blanket cylinder is at least two Image cylinders connected, each image cylinder an image-bearing plate or cassette includes.
  • the blanket cylinder stands, whereby one image is transferred to the web for printing, is the other Image cylinder detached from the blanket cylinder ("out of print”).
  • the other image cylinders are stopped, causing the image-bearing plate or cassette can be replaced without the entire operation of the printing machine being stopped must become.
  • the image-bearing plate or cassette on the stopped image cylinder can then be brought up to speed and with the Blanket cylinder in a relative angular orientation to ensure the Register accuracy can be engaged while the other image cylinder is disengaged so that thereafter a replacement of the image-bearing plate or Cassette of this image cylinder is possible.
  • the present invention includes a drive and clutch assembly that Restart and register-accurate engagement of an image cylinder, which can be replaced the image bearing plate or cassette has been disengaged from the Blanket cylinder allows, while the other image cylinder, the Blanket cylinder and printing on the web was switched out of engagement brought and stopped.
  • Each image cylinder can have its own paint application and Have dampening device, or it can be the two image cylinders Paint application and dampening device share that switched at the same time to which the ink cylinders are switched.
  • Embodiment of the present invention are two image cylinders and Paint applicators together on a frame for lateral movement relative attached to the blanket cylinder so that the lateral movement of one Image cylinder and the one ink application device away from the blanket cylinder engaging with this a lateral movement of the other image cylinder and the other inking device to the blanket cylinder and engaged with it has the consequence.
  • a blanket cylinder BLNKT comprises a shaft 1 which is attached to a blanket cylinder gear 2.
  • the rubber blanket cylinder gear 2 is driven by known drive devices, which results in the rubber blanket cylinder gear 2, the shaft 1 and the rubber blanket BLNKT being rotated.
  • Blanket cylinder 2 is carried with a switchable image cylinder gear 3.
  • Shaft 5 of the blanket cylinder BLNKT is connected to a blanket cylinder shaft encoder 13.
  • the image cylinder gear 3 is mounted for rotation on a bearing 4, this bearing being fixed on a shaft 5 of the image cylinder P.
  • the coupling device 6 which moves along the length of shaft 5 and rotates with shaft 5.
  • the coupling device 6 comprises on one side, which faces the image cylinder P 1 , radially outwardly projecting wedges 7 which selectively engage in radially inwardly projecting wedges 8 on the inner circumference of the image cylinder gear 3 when the coupling device 6 is in the position shown in FIG. 2A position shown.
  • the coupling device 6 further comprises, on a side facing away from the picture cylinder P 1, radially outwardly projecting wedges 9, into the radially inwardly projecting wedges 10 on the inner circumference of a first picture cylinder auxiliary drive pulley 11 when the coupling device 6 is shown in FIG. 2C Position.
  • the first image cylinder auxiliary drive pulley 11 is mounted for rotation on a bearing 12, this bearing being fixed on the shaft 5 of the image cylinder P 1 .
  • a belt or chain 14 is placed over the first image cylinder auxiliary drive pulley 11 entrained, this belt or chain 14 also via a second image cylinder auxiliary drive pulley 11 '(Fig. 4 and 5) and an auxiliary drive pulley 15 is carried.
  • the auxiliary drive pulley 15 is driven by an auxiliary drive 16.
  • the belt or chain 14 drives a guide pulley 31 on, which is connected to the auxiliary coding device 17.
  • the guide disc 31 is not used, and the auxiliary coding device 17 is connected directly to the auxiliary drive 16.
  • signals from the auxiliary encoder 17, the Reflect speed and phase angle are processed to ensure that from the rotation of the auxiliary drive 16 derived signals speed and position the auxiliary drive disks 11, 11 'are reflecting.
  • FIG. 2A shows the present invention in a position in which the image cylinder P 1 is "in print” and is driven by the blanket cylinder BLNKT.
  • a second image cylinder P 2 (not shown in Fig. 2A, shown in Figs. 4 and 5) is simultaneously "out of pressure” and is not driven by the blanket cylinder BLNKT, as above and below in described.
  • the wedges 7 and 8 engage in one another and thereby connect the shaft 5 to the image cylinder gear 3.
  • the image cylinder P 1 becomes through and with the Blanket cylinder BLNKT driven.
  • the image cylinder P 2 is "out of pressure" and is not driven by the blanket cylinder BLNKT, ie a corresponding coupling device 6 connected to the image cylinder P 2 is in the position shown in FIG. 2C, and the image cylinder P 2 is slightly from the blanket cylinder BLNKT offset (ie "pivoted" by conventional pivoting devices to move an image cylinder for changing the plate on the image cylinder away from a blanket cylinder).
  • the shaft 5 is not coupled to the first image cylinder auxiliary drive pulley 11, which is why the auxiliary drive 16 has no influence on the image cylinder P 1 .
  • the image cylinder P 2 is brought up to speed with the blanket cylinder by operating the auxiliary drive 16 when the coupling device for the image cylinder P 2 is in the position shown in FIG. 2C.
  • a control unit (not shown) compares the speed measured by the auxiliary coding device 17, which is connected either to the guide pulley 31 carried by the belt or chain 14 (FIG. 4) or directly to the auxiliary drive 16 (FIG.
  • the auxiliary encoder 17 measures the speed of the auxiliary drive 16 and therefore the speed of the drive pulley 11, while the blanket cylinder shaft encoder 13 measures the speed of the blanket cylinder BLNKT and therefore of the transmission 3.
  • Register accuracy can be achieved in one of two ways.
  • First, the angular position or phase angle of the auxiliary drive 16 can be adjusted to achieve register accuracy. This register accuracy is achieved by comparing the angular position measured by the auxiliary coding device 17 with the angular position measured by the coding device 13 of the blanket cylinder shaft, which rotates once per revolution of the blanket cylinder BLNKT, and adjusting the phase angle of the auxiliary drive 16 until register accuracy is achieved.
  • the wedges 7, 8 may include a guide member that allows a degree of relative rotation after engagement and only engages in a specific angular position by guiding the wedges toward this engagement. The wedges 7 and 8 are designed so that engagement is only possible in one position of the relative angles of rotation of the image cylinders P 1 , P 2 and the blanket cylinder BLNKT in order to secure the image adjustment.
  • the coupling device 6 for the image cylinder P 2 is then moved to the position shown in FIG. 2A, whereby a drive of the image cylinder P 2 is effected by the blanket cylinder gear 2 .
  • the image cylinder P 2 goes "in print”.
  • the image cylinder P 1 is pivoted away from the blanket cylinder BLNKT, thereby "goes out of pressure”, and the coupling device 6 for the image cylinder P 1 is moved to the position shown in FIG. 2C.
  • the auxiliary drive 16 is then slowed down until the rotation of the image cylinder P 1 is stopped.
  • the plate on or the cassette in the image cylinder P 1 can then be replaced and the inking unit for this image cylinder can then be cleaned.
  • a cassette (not shown) can be contained in an image cylinder P 1 and actuated to position a virgin layer of an imageable material or a pre-imaged layer on the periphery of the image cylinder P 1 .
  • the cassette only needs to be replaced when all of the material in the cassette has been used up.
  • the auxiliary drive 16 can be used to drive the image cylinder P 1 while it is being imaged by an imaging device I. If it is desired that printing is then started with image cylinder P 1 and ended with image cylinder P 2 , the method described above can of course be reversed.
  • 3A and 3B show an embodiment of the present invention.
  • 3 is a blanket cylinder blanket in engagement with a web W.
  • Above the blanket cylinder BLANKET is a side Slidable frame 23 on which a first inking and imaging device 21 and a second inking and imaging device 22 are attached.
  • the inking unit and imaging devices 21, 22 each comprise their own inking unit and one own plate cylinder.
  • a common is attached over the frame 23 Ink fountain unit 20.
  • Fig. 3A shows a first position of the frame 23, and
  • Fig. 3B shows a second position of the frame 23.
  • the first position of the frame 23 connects the first inking unit and imaging device 21, the ink fountain unit 20 with the BLANKET blanket cylinder, while the second inking and Imaging device 22 of the ink fountain unit 20 and the blanket cylinder BLANKET is separated.
  • the Image-bearing plate or cassette on the second inking and imaging device 22 can be replaced, and the second inking and imaging device 22 can getting cleaned.
  • the second inking unit connects and imaging device 22, the ink fountain unit 20 with the blanket cylinder BLANKET, while the first inking and imaging device 21 of the Ink fountain unit 20 and the blanket cylinder BLANKET is separated.
  • the image-bearing plate on or cassette in the first inking and imaging device 21 are replaced, and the first Inking unit and imaging device 21 can be cleaned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP01111910A 1997-08-07 1998-07-22 Dispositif et procédé pour changer l'image d'impression pendant l'opération d'une machine d'impression Expired - Lifetime EP1157830B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US908736 1997-08-07
US08/908,736 US5904093A (en) 1997-08-07 1997-08-07 Apparatus and method for changing images during operation of a printing press
EP98113657A EP0895857B1 (fr) 1997-08-07 1998-07-22 Dispositif et procédé pour changer l'image d'impression pendant l'opération d'une machine d'impression

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP98113657.5 Division 1998-07-22
EP98113657A Division EP0895857B1 (fr) 1997-08-07 1998-07-22 Dispositif et procédé pour changer l'image d'impression pendant l'opération d'une machine d'impression

Publications (2)

Publication Number Publication Date
EP1157830A1 true EP1157830A1 (fr) 2001-11-28
EP1157830B1 EP1157830B1 (fr) 2003-05-02

Family

ID=25426172

Family Applications (2)

Application Number Title Priority Date Filing Date
EP98113657A Expired - Lifetime EP0895857B1 (fr) 1997-08-07 1998-07-22 Dispositif et procédé pour changer l'image d'impression pendant l'opération d'une machine d'impression
EP01111910A Expired - Lifetime EP1157830B1 (fr) 1997-08-07 1998-07-22 Dispositif et procédé pour changer l'image d'impression pendant l'opération d'une machine d'impression

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP98113657A Expired - Lifetime EP0895857B1 (fr) 1997-08-07 1998-07-22 Dispositif et procédé pour changer l'image d'impression pendant l'opération d'une machine d'impression

Country Status (4)

Country Link
US (2) US5904093A (fr)
EP (2) EP0895857B1 (fr)
JP (1) JPH1199613A (fr)
DE (3) DE19832917A1 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5904093A (en) * 1997-08-07 1999-05-18 Heidelberger Druckmaschinen Ag Apparatus and method for changing images during operation of a printing press
US5806427A (en) * 1997-08-29 1998-09-15 Goss Graphic Systems, Inc. Printing press having carriage mounted interchangeable plate cylinders
WO2001056792A1 (fr) * 2000-02-04 2001-08-09 Koenig & Bauer Aktiengesellschaft Procede pour reguler la tension d'une bande dans une rotative
US6543350B2 (en) * 2000-05-19 2003-04-08 Intelligent Sensing, Inc. Measurement system to monitor printing contact pressure
US6474231B1 (en) * 2000-07-26 2002-11-05 Heidelberger Druckmaschinen Ag Multi-color printing press with common blanket cylinder
DE10046374B4 (de) * 2000-09-20 2014-05-15 Koenig & Bauer Aktiengesellschaft Verfahren zum Betreiben einer Druckeinheit
DE10111362A1 (de) 2001-03-06 2002-09-19 Koenig & Bauer Ag Druckeinheit
CN1220588C (zh) * 2001-03-26 2005-09-28 柯尼格及包尔公开股份有限公司 印刷单元的驱动装置
US6829991B1 (en) * 2003-10-29 2004-12-14 Goss International Americas, Inc. Inker driven shaftless unit
US7270057B2 (en) 2004-01-28 2007-09-18 Rdp Marathon Inc. Rolling element adjustment system
EP1559546A1 (fr) * 2004-01-28 2005-08-03 RDP Marathon Inc. Unité d'impression convertible entre deux modes d'impression
DE102004048315A1 (de) * 2004-10-05 2006-04-06 Man Roland Druckmaschinen Ag Druckeinheit einer Druckmaschine und Verfahren zur Durchführung eines Druckplattenwechsels an einem Formzylinder einer Druckeinheit
EP1769912B1 (fr) * 2005-09-30 2008-06-18 Gimaco Ingenieur AG für Maschinenbau Machine d'impression rotative sur bandes
DE102007046163B4 (de) * 2007-09-27 2018-12-20 Manroland Web Systems Gmbh Druckeinheit für eine Rotationsdruckmaschine
WO2010020284A1 (fr) * 2008-08-21 2010-02-25 Wifag Maschinenfabrik Ag Machine à imprimer rotative pour un changement rapide de production
US8056475B2 (en) 2008-11-05 2011-11-15 Goss International Americas, Inc. Variable cutoff printing press with common blanket cylinder
WO2010056851A1 (fr) * 2008-11-13 2010-05-20 Larry Hines Unité d'impression en offset avec entraînement de cylindre porte-plaque

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010141A1 (fr) * 1978-10-12 1980-04-30 Albert-Frankenthal AG Dispositif pour la production de produits imprimés avec des impressions interchangeables
DE3313219A1 (de) * 1983-04-13 1984-10-18 Metronic Gerätebau GmbH & Co, 8702 Veitshöchheim Druckwerk fuer eine rotationsdruckmaschine
DE8410619U1 (de) * 1984-04-05 1985-06-20 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Druckwerk einer Offsetrotationsdruckmaschine
EP0321360A1 (fr) * 1987-12-18 1989-06-21 Usinage Montage Et Assistance Technique U.M.A.T. Appareil d'impression offset fonctionnant en tandem
DE3917340A1 (de) * 1989-05-27 1990-11-29 Simon Sa Offset-rotationsmaschine
EP0465789A1 (fr) * 1990-07-10 1992-01-15 MAN Roland Druckmaschinen AG Unité d'impression avec des moyens pour remplacer la plaque d'impression à la volée
EP0509414A1 (fr) * 1991-04-19 1992-10-21 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Unité d'impression pour une presse rotative

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2051573A (en) * 1932-01-22 1936-08-18 Hoe & Co R Late news mechanism for printing machines
US2425167A (en) * 1942-07-02 1947-08-05 Goss Printing Press Co Ltd Printing press
US2384843A (en) * 1943-03-25 1945-09-18 Lowe James Moore Printing
US5904093A (en) * 1997-08-07 1999-05-18 Heidelberger Druckmaschinen Ag Apparatus and method for changing images during operation of a printing press

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010141A1 (fr) * 1978-10-12 1980-04-30 Albert-Frankenthal AG Dispositif pour la production de produits imprimés avec des impressions interchangeables
DE3313219A1 (de) * 1983-04-13 1984-10-18 Metronic Gerätebau GmbH & Co, 8702 Veitshöchheim Druckwerk fuer eine rotationsdruckmaschine
DE8410619U1 (de) * 1984-04-05 1985-06-20 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Druckwerk einer Offsetrotationsdruckmaschine
EP0321360A1 (fr) * 1987-12-18 1989-06-21 Usinage Montage Et Assistance Technique U.M.A.T. Appareil d'impression offset fonctionnant en tandem
DE3917340A1 (de) * 1989-05-27 1990-11-29 Simon Sa Offset-rotationsmaschine
EP0465789A1 (fr) * 1990-07-10 1992-01-15 MAN Roland Druckmaschinen AG Unité d'impression avec des moyens pour remplacer la plaque d'impression à la volée
EP0509414A1 (fr) * 1991-04-19 1992-10-21 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Unité d'impression pour une presse rotative

Also Published As

Publication number Publication date
US6119593A (en) 2000-09-19
DE19832917A1 (de) 1999-02-11
EP0895857B1 (fr) 2002-09-25
EP0895857A3 (fr) 1999-06-30
US5904093A (en) 1999-05-18
DE59805665D1 (de) 2002-10-31
DE59808203D1 (de) 2003-06-05
JPH1199613A (ja) 1999-04-13
EP0895857A2 (fr) 1999-02-10
EP1157830B1 (fr) 2003-05-02

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