EP2050568A2 - Procédé et dispositif destinés au changement de plaques d'impression dans une machine de traitement - Google Patents

Procédé et dispositif destinés au changement de plaques d'impression dans une machine de traitement Download PDF

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Publication number
EP2050568A2
EP2050568A2 EP20080165877 EP08165877A EP2050568A2 EP 2050568 A2 EP2050568 A2 EP 2050568A2 EP 20080165877 EP20080165877 EP 20080165877 EP 08165877 A EP08165877 A EP 08165877A EP 2050568 A2 EP2050568 A2 EP 2050568A2
Authority
EP
European Patent Office
Prior art keywords
plate
printing
forme cylinder
cylinder
coating
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.)
Withdrawn
Application number
EP20080165877
Other languages
German (de)
English (en)
Inventor
Toni Ehrhard
Bernd Lindner
Claus Mannel
Bernd Marneth
Uwe Püschel
Franz Reiner
Michael Rother
Helmut Schild
Berthold Seib
Holger Dr. Wiese
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 AG
Original Assignee
Manroland 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 Manroland AG filed Critical Manroland AG
Publication of EP2050568A2 publication Critical patent/EP2050568A2/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a method and apparatus for printing plate change on a processing machine according to the preambles of the independent claims.
  • the invention is particularly suitable for sheet material processing printing units and / or coating units with a device for automatic printing plate change.
  • a device of this kind is made DE 44 04 558 A1 known, which is known to each printing unit, alternatively coating unit assigned.
  • Such a printing / coating unit has a plate changing / forme cylinder for the supply and removal of at least one printing plate associated plate changing device.
  • the preferably new printing plate is mounted on this and in a second
  • Out EP 0 812 683 A1 is a drive for a printing machine, in particular sheet-fed printing machine, known, according to the at least one drive motor of a main drive, a first drive for the individual sheet guiding cylinder, especially transfer cylinder and impression cylinder, as well as provided for in the printing units blanket cylinder via a common gear train.
  • a second drive takes place directly on each provided in the printing plates plate / forme cylinder in the form of a single drive.
  • the main drive (first drive) and the individual drives are circuitry coupled with a machine control, the coupled with one individual drive plate / form cylinder can be driven in a predeterminable manner with respect to the driven by the main drive and gear train cylinders.
  • a plate changing device comprises a transport roller assigned to the plate cylinder, which is set against the plate cylinder during supply / removal of the printing plate.
  • this transport roller is drivable in conveying the printing plate with a transport roller peripheral speed which is greater than the plate cylinder peripheral speed and drivable during feeding with a transport roller peripheral speed which is smaller than the plate cylinder peripheral speed.
  • the device is based on a sheet-fed printing press, the drive of which is effected by a main motor via a gear train and the plate cylinder of which a shift clutch and a separate drive are assigned.
  • the object of the invention is to improve a method and a device of the type mentioned above such that a process-stable pressure plate change can be realized in a separation made between plate / plate cylinder and an immediately adjacent cylinder.
  • a first advantage results from the fact that in a separation in a contact / separation point between plate / forme cylinder and the immediately adjacent cylinder, especially an immediately associated blanket cylinder or a directly associated sheet guiding cylinder, the printing plates (including coating plates) during printing plate change (including coating plate change ) can be easily performed by means of a plate changing device for the automatic printing plate change on plate / forme cylinder.
  • a second advantage is that the method and apparatus for automatic printing plate change are suitable for processing machines with printing / coating units whose plate / forme cylinder driven by the main drive and gear train or by means of individual drive, mechanically separated from the main drive and gear train, are directly driven .
  • At least one by means of single drive (including auxiliary drive) drivable plate / forme cylinder can be done a plate change and the immediately adjacent, driven by the main drive blanket cylinder in a printing unit or the immediately adjacent sheet guiding cylinder in a coating unit or flexographic printing can be cleaned by means of a washing device at the same time or overlapped in time.
  • a washing device at the same time or overlapped in time.
  • an associated inking unit can be cleaned and / or a paint feed can take place there.
  • a fourth advantage is that when printing plate change (including coating plate change), the printing / coating plate (printing plate) when releasing the printing / coating plate from the Druckendeschiene is guided collision-free on the plate / forme cylinder.
  • a force is temporarily applied to the located on the plate / forme cylinder printing / coating plate in a printing plate changing position, which presses them against the lateral surface of the plate / forme cylinder.
  • This force acts especially in an area on the printing / varnish plate, which by the in the Druckendeschiene fixed printing end of the printing / coating plate and the contact / separation point of the plate / forme cylinder is formed to the adjacent blanket cylinder or the adjacent sheet guiding cylinder.
  • this force can be applied by means of a pressure applied / ab bain executed pressure device on the plate / forme cylinder arranged pressure / paint plate.
  • the pressing device can be turned on / off and additionally designed to be pivotable or rotatable or freely rotatable at least in a direction conveying the printing / coating plate. This can be avoided in particular in printing plate changing position that the still fixed in the pressure start rail on the plate / forme cylinder pressure / paint plate may be different from the lateral surface of the plate / forme cylinder and with other parts of the printing / coating unit, z. As the wet or inking rollers, comes into contact and optionally collided.
  • the removal of the printing / coating plate in the direction of the plate changing device is improved.
  • the pressing device in the gusset near the contact / separation point of plate / forme cylinder and the immediately adjacent cylinder (blanket cylinder, sheet guiding cylinder) is arranged.
  • An offset printing unit of a processing machine consists essentially of a plate / forme cylinder 1 and a blanket cylinder 2, an inking unit 6 and, if necessary, a dampening unit 5.
  • the blanket cylinder 2 is with the substrate, especially sheet material, in the conveying direction 3 transporting sheet guiding cylinder 4, here as Printing plate cylinder 4, in operative connection and forms a pressure nip 7.
  • plate / forme cylinder 1, blanket cylinder 2 and sheet guiding cylinder 4 have cylinder channels 8 for receiving clamping / holding means for printing plate or blanket clamping or for fixing sheet material.
  • the plate / forme cylinder 1 is assigned a plate changing device 10 for the feeding and removal of at least one printing / coating plate 18.
  • a printing / coating plate 18 is in a first rotational / conveying direction 21 of the plate / forme cylinder 1 on this zu supplementbar or wind-up and in an opposite, second rotational / conveying direction 22 of the plate / forme cylinder 1 of this to the plate changing device 10th conveyed away.
  • a freely rotatable, on / off adjustable pressure roller 9 alternatively a plurality of pressure rollers on one Axis, as an aid to the feeding of the
  • the pressure roller 9 is turned off, ie out of contact with this.
  • a plurality of identical offset printing units are arranged in a row construction, between the sheet guiding cylinders 4 adjacent printing units further sheet guiding cylinders (not shown) are arranged as a transfer cylinder for sheet transport through the processing machine.
  • the offset printing units combined with coating units or flexographic printing units can be arranged in series to form the processing machine for sheet material.
  • the varnish / flexographic printing units each include a plate / forme cylinder 1 which is in operative connection with a plate changing device 10 and the device according to the invention for changing printing plates.
  • the main drive 17 and the individual drives 16 of the plate / forme cylinder 1 are circuitry and data technology coupled with a machine control.
  • the individual drives 16 can be driven directly and in a predeterminable manner with respect to the cylinders 2, 4 operated by the main drive 17 with gear train.
  • the sheet guiding cylinders arranged between the printing units or flexographic printing / coating units are enclosed in the gear train driven by the main drive 17.
  • the main drive 17 comprises at least one motor which feeds a drive torque to the gear train.
  • the plate changing devices 10 are each shown on the boom side of a printing unit.
  • the plate changing device 10 a first conveyor 11, which can be brought into contact with a back 20 of the printing / coating plate 1, and a second conveyor 12, which is engageable with a front side 19 of the printing / coating plate 18 comprise
  • the conveyors 11, 12 are each designed, for example, in the form of a roller or rolls. In this case, preferably at least the first conveyor 11 is driven in rotation.
  • a pressing device 15 is arranged adjacent to the plate / forme cylinder 1.
  • the pressing device 15 of the pressure roller 9 is arranged downstream.
  • the pressing device 15 is associated adjacent to the plate / forme cylinder 1 in an area formed by the printing end rail 24 and the printing end DE and the contact / separation point 13, respectively.
  • the pressing device 15 For releasing and, if necessary, conveying a printing / coating plate 18, the pressing device 15 with a force F to the fixed on the plate / forme cylinder 1 printing / coating plate 18 temporarily adjustable or designed as required ab perhaps.
  • the plate / forme cylinder 1 and an immediately adjacent cylinder 2; 4 bladenket cylinder 2, sheet guiding cylinder 4) separated in the contact / separation point 13.
  • the pressing device 15 may be employed in an embodiment only in the printing plate change position of the plate / forme cylinder 1 to the guided on the plate / forme cylinder 1 printing / coating plate 18.
  • the pressing device 15 at the position in the printing plate change position plate / forme cylinder 1 and then for conveying the printing / coating plate 18 in the second rotation / conveying direction 22 rotatably driven plate / forme cylinder 1 guided on the plate / forme cylinder 1 Be used pressure / coating plate 18, wherein at least before the passage (on the pressing device 15) of the fixed in the pressure top rail 23 Druck shapings DA the printing / coating plate 18 this is turned off the plate / forme cylinder 1.
  • the pressing device 15 comprises a pressing element, which is on / off the pressure on the plate / forme cylinder 1 pressure / coating plate 18.
  • the pressing device 15 is preferably switched on / off in the radial direction.
  • the on / off adjustable pressing device 15 for example, designed as a pressing element, additionally be mounted in a rotary joint 25 ( Fig. 4 ).
  • the pressing device 15 may be pivotally mounted about the pivot joint 25.
  • the on / off adjustable pressing device 15 comprises a rotatably mounted roller.
  • This roller is preferably freely rotatably mounted or freely rotatable at least in the direction of the second rotation / conveying direction 22, for example as a freewheel.
  • the pressing device 15 may comprise a plurality of rollers spaced on an axis.
  • the pressing device 15 is preferably coupled to an actuating device, such as a pneumatically actuated working cylinder.
  • Fig. 1 is the delivery of a printing / coating plate 18 from the plate / forme cylinder 1 in the second rotation / conveying direction 22 of the plate / forme cylinder 1 directly driven by a single drive 16 and a plate / forme cylinder 1 immediately adjacent blanket cylinder 2 or immediately adjacent sheet guiding cylinder 4 is driven by the main drive 17 (and gear train) in the opposite direction of rotation or may alternatively be stopped.
  • Fig. 2 are when conveying a printing / coating plate 18 from the plate / forme cylinder 1 in the second rotation / conveying direction 22 of the plate / forme cylinder 1 and the immediately adjacent blanket cylinder 2 and the adjacent sheet guiding cylinder 4 or directly the plate / forme cylinder 1 adjacent sheet guiding cylinder 4 driven synchronously by means of a main drive 17 with gear train.
  • the plate / forme cylinder 1 a separate motor, for example as an auxiliary drive, be assigned, which can be coupled by means of a clutch to the main drive and gear train of the processing machine.
  • the pressing device 15 With the pressing device 15, the inclination of the printing / coating plate 18 is prevented after the opening of the plate / forme cylinder 1 arranged in the cylinder channel 8 Druckendeschiene 24 (DE rail) from the lateral surface of the plate / forme cylinder 1.
  • the employed pressing device 15 presses (force F) fixed in the pressure top rail 23 pressure / coating plate 18 to the lateral surface of the plate / forme cylinder 1.
  • the touch or collision with other parts of the printing / coating unit, z As the dampening or inking rollers, and damage to the surface or the subject of the printing / coating plate 18 is avoided.
  • the operation is at an offset printing unit in the first training (plate / forme cylinder 1 coupled with single drive 16) as follows: From the plate changing device 10, a printing / coating plate 18 with a plate edge for the Start of printing DA (DA edge) in a first rotational / conveying direction 21 fed to the plate / forme cylinder 1.
  • the plate / forme cylinder 1 immediately adjacent blanket cylinder 2 was placed in its storage, such as an eccentric, from the plate / forme cylinder 1, so that in the contact / separation point 13 is a free space (blanket cylinder 2 ').
  • the printing / coating plate 18 is fixed to the start of print DA by means of the pressure start rail 23 on the plate / forme cylinder 1 and the plate / forme cylinder 1 is by means of individual drive 16 at a predetermined peripheral speed in the direction of the first
  • Rotary / conveying direction 21 is rotated until the printing / coating plate 18 is mounted on the plate / forme cylinder 1 and the plate edge for the printing end DE can be fixed by means of the Druckendeschiene 24 on the plate / forme cylinder 1.
  • the guide device 15 from the plate / forme cylinder 1 and the printing / coating plate 18 is turned off.
  • a printed printing / coating plate 18 are to be conveyed away from the plate / forme cylinder 1, the plate / forme cylinder 1 is rotated in a second rotary / conveying direction 22 by means of individual drive 16.
  • the pressing device 15 is employed with a force F to the arranged on the plate / forme cylinder 1 printing / coating plate 18.
  • the print end rail 24 releases the print end DE of the printing / coating plate 18, the printing / coating plate 18 is released in the region of the printing end DE from the plate / forme cylinder 1 and becomes the plate changing device 10
  • the mode of operation is in an offset printing unit in the second embodiment (plate / form cylinder 1 coupled to the main drive 17 and gear train) as follows: From the plate changing device 10 is a printing / coating plate 18 with a pressure start DA in a first rotation / conveying direction 21 the plates - / Form cylinder 1 supplied. In this case, the guide device 15 is turned off. The blanket cylinder 2 immediately adjacent to the plate / forme cylinder 1 was stored in its storage, For example, an eccentric, parked by the plate / forme cylinder 1, so that in a contact / separation point 13 is a free space (blanket cylinder 2 ').
  • the printing / coating plate 18 is fixed to the print start DA by means of pressure top rail 23 on the plate / forme cylinder 1 and the plate / forme cylinder 1 is rotated by the main drive 17 and gear train with a peripheral speed in the direction of the first rotation / conveying direction 21 to the Pressure / coating plate 18 is mounted on the plate / forme cylinder 1 and the end of the print DE can be fixed by means of Druckendeschiene 24 on the plate / forme cylinder 1.
  • a printed printing / coating plate 18 are conveyed away from the plate / forme cylinder 1, the plate / forme cylinder 1 is rotated in a second rotary / conveying direction 22 by means of the main drive 17 and gear train.
  • the pressing device 15 is employed with a force F to the arranged on the plate / forme cylinder 1 printing / coating plate 18.
  • the print end rail 24 releases the printing / coating plate 18, the printing / coating plate 18 is released in the region of the printing end DE from the plate / forme cylinder 1 and is fed to the plate changing device 10 (rotating / conveying direction 22).
  • the plate / forme cylinder 1 immediately adjacent blanket cylinder 2 is parked by the plate / forme cylinder 1, so that in the contact / separation point 13 is a free space (blanket cylinder 2 ').
  • the guide device 15 is preferably driven in the rotational / conveying direction 22 with a circumferential speed of the plate / forme cylinder 1 greater peripheral speed.
  • the plate / forme cylinder 1 is rotated into a printing plate changing position and temporarily positioned there. Thereafter, a force F is temporarily applied to a fixed on the plate / forme cylinder 1 printing / coating plate 18 in a region formed by the Druckendeschiene 24 and the end of printing DE and the contact / separation point 13. Subsequently, the printing end DE of the printing / coating plate 18 released from a Druckendeschiene 24. Thereafter, the plate / forme cylinder 1 for discharging the printing / coating plate 18 is rotated from the printing plate changing position in the rotation / conveying direction 22 to the plate changing device 10. In this case, at least before the passage of the print start DA of the printing / coating plate 18 at the force application point, the effect of the force F canceled and then the printing / coating plate 18 is released from a pressure top rail 23.
  • the closed print end rail 24 is temporarily removed from the holding position for the printing / coating plate 18 in the direction of the pressure beginning rail 23, ie the channel edge 14 (FIG. Fig. 3 . 4 ) and then moved back to the holding position.
  • the possibly adhering to the lateral surface of the plate / forme cylinder 1 printing / coating plate 18 is loosened before the actual removal from the Druckendeschiene 24.
  • the force F which can be applied by means of the pressing device 15 is applied temporarily to the printing / coating plate 18 in a line-shaped or zonal manner.

Landscapes

  • Rotary Presses (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)
EP20080165877 2007-10-16 2008-10-06 Procédé et dispositif destinés au changement de plaques d'impression dans une machine de traitement Withdrawn EP2050568A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710049453 DE102007049453A1 (de) 2007-10-16 2007-10-16 Verfahren und Vorrichtung zum Druckplattenwechsel an einer Verarbeitungsmaschine

Publications (1)

Publication Number Publication Date
EP2050568A2 true EP2050568A2 (fr) 2009-04-22

Family

ID=40340640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080165877 Withdrawn EP2050568A2 (fr) 2007-10-16 2008-10-06 Procédé et dispositif destinés au changement de plaques d'impression dans une machine de traitement

Country Status (3)

Country Link
EP (1) EP2050568A2 (fr)
JP (1) JP2009096201A (fr)
DE (1) DE102007049453A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5999752B2 (ja) * 2012-02-21 2016-09-28 株式会社ミヤコシ バリアブル印刷機
DE102015208175A1 (de) 2014-05-27 2015-12-03 Koenig & Bauer Ag Verfahren zum Betreiben einer bogenverarbeitenden Maschine mit mindestens einer Bearbeitungseinheit
DE102017209487A1 (de) 2017-06-06 2018-12-06 Koenig & Bauer Ag Verfahren zum Betreiben einer Bogendruckmaschine mit mehreren Druckwerken

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404558A1 (de) 1994-02-12 1995-08-17 Roland Man Druckmasch Vorrichtung zum automatischen Wechseln von Druckplatten
EP0812683A1 (fr) 1996-06-11 1997-12-17 MAN Roland Druckmaschinen AG Entraînement pour une machine à imprimer
DE102004006942A1 (de) 2004-02-12 2005-11-03 Koenig & Bauer Ag Einrichtung zum automatischen Druckplattenwechsel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660777B1 (fr) * 1992-09-18 1996-12-27 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Dispositif destine a amener et a evacuer des plaques d'impression
DE4440239C5 (de) * 1994-11-10 2007-11-22 Man Roland Druckmaschinen Ag Wälzelement zum Andrücken einer flexiblen Druckplatte an den Formzylinder
DE19933943A1 (de) * 1999-07-20 2001-01-25 Roland Man Druckmasch Verfahren und Vorrichtung für den Druckformwechsel
DE102007015595B3 (de) * 2007-03-29 2008-04-10 Man Roland Druckmaschinen Ag Vorrichtung zum Druckplattenwechsel an einer Verarbeitungsmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404558A1 (de) 1994-02-12 1995-08-17 Roland Man Druckmasch Vorrichtung zum automatischen Wechseln von Druckplatten
EP0812683A1 (fr) 1996-06-11 1997-12-17 MAN Roland Druckmaschinen AG Entraînement pour une machine à imprimer
DE102004006942A1 (de) 2004-02-12 2005-11-03 Koenig & Bauer Ag Einrichtung zum automatischen Druckplattenwechsel

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Publication number Publication date
JP2009096201A (ja) 2009-05-07
DE102007049453A1 (de) 2009-04-30

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