EP0681915A2 - Dispositif pour fixer des plaques d'impression flexibles - Google Patents

Dispositif pour fixer des plaques d'impression flexibles Download PDF

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Publication number
EP0681915A2
EP0681915A2 EP95105418A EP95105418A EP0681915A2 EP 0681915 A2 EP0681915 A2 EP 0681915A2 EP 95105418 A EP95105418 A EP 95105418A EP 95105418 A EP95105418 A EP 95105418A EP 0681915 A2 EP0681915 A2 EP 0681915A2
Authority
EP
European Patent Office
Prior art keywords
washing
cylinder
printing
roller
forme cylinder
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
EP95105418A
Other languages
German (de)
English (en)
Other versions
EP0681915B1 (fr
EP0681915A3 (fr
Inventor
Georg Hartung
Manfred Herold
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
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0681915A2 publication Critical patent/EP0681915A2/fr
Publication of EP0681915A3 publication Critical patent/EP0681915A3/fr
Application granted granted Critical
Publication of EP0681915B1 publication Critical patent/EP0681915B1/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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/006—Cleaning arrangements or devices for impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/22—Rollers

Definitions

  • the invention relates to a device for mounting flexible printing forms on the forme cylinder of printing machines according to the preamble of claim 1.
  • the printing formes (printing plates) are clamped onto the form cylinder (plate cylinder) by fastening the end of the printing form assigned to the start of printing in a clamping rail, whereupon the printing form is pulled onto the form cylinder as it rotates forward. The edge of the printing form facing the printing end is then introduced into a corresponding clamping rail.
  • So-called pressure rollers which extend across the format width of the forme cylinder and are mounted on and detachable from it, have become known in order to ensure that the printing forme is ironed or pulled onto the forme cylinder circumference, in particular in the case of an automated device for changing the printing forme 4 218 602 A1).
  • a painting device consists in a manner known per se of a sheet-guiding impression cylinder and a forme cylinder.
  • the printing form of the forme cylinder at a Painting device can for example be designed as a simple rubber blanket (full-surface painting). In the case of partial painting or so-called spot painting, so-called recessed blankets are also used as printing forms.
  • Special printing forms are used for particularly complex painting or finishing work Lacquered plates or, more recently, so-called Nyloflex plates, in which a flexo plate is applied to an aluminum support in the manner of an offset printing plate.
  • the painting device then works according to the high-pressure or flexographic printing process.
  • washing devices for the printing cylinders of printing machines, in particular the blanket or the impression cylinder of an offset printing unit, are generally known.
  • a washing device is known from DE 3 614 496 A1, in which the washing roller is designed as a so-called washing brush. The washing device is mounted on and off the cylinder in addition to the washing roller.
  • a further washing device for the cylinders of printing units is known from EP 0 004 605 A1, wherein a format-wide washing roller with a particularly soft outer surface is also used here. It is provided here, both by a pivotable storage with the washing device To be able to clean the impression cylinder and the blanket cylinder.
  • the object of the present invention is therefore to design a device according to the preamble of claim 1 in a structurally simple manner in such a way that simple means are possible in mounting flexible printing plates.
  • the washing roller of a washing device is turned on the forme cylinder to pull up the flexible printing forms on the forme cylinder.
  • This can be the washing roller of a washing device which is either directly assigned to the forme cylinder (blanket cylinder of a coating device) or the washing roller of a washing device which is assigned to a cylinder which interacts with the forme cylinder.
  • the device according to the invention can be used not only for mounting printing plates on the plate cylinder of sheet-fed offset printing presses, but also for in particular automated mounting of a printing blanket on the blanket cylinder of a sheet-fed offset printing unit and also also for mounting a blanket or some other form of printing plate on the form cylinder of a coating device.
  • a washing roller of a washing device according to the invention for mounting flexible printing forms on the form of printing machines.
  • the washing device In the printing unit of a sheet-fed offset printing machine there is a washing device assigned to the blanket cylinder near the inlet gap between the plate and blanket cylinders (normal direction of rotation of the Arranged). To wash the blanket, the washing roller or the entire washing device with washing roller is mounted on and off the blanket cylinder. Especially with larger runs, the rubber blanket is often washed several times during the print job.
  • the washing roller is placed on the outer circumference of the plate cylinder, so that the washing roller now takes over the function of an otherwise provided pressure roller when the printing plate is pulled up.
  • the plate cylinder rotates in the same direction as during printing.
  • the above-described mountable and detachable mounting of the washing roller of the washing device relative to the plate cylinder can also serve, in particular, to insert a bent end of a printing plate into a corresponding clamping device.
  • the washing roller is set in an angular position of the cylinder, in which the bent end of the pressure plate is opposite the washing roller.
  • the washing roller which is mounted on and can be removed from the plate cylinder and which is normally used to clean the rubber blanket, can also be used to pull up a supporting sheet on the plate cylinder. This is particularly advantageous if the plate cylinder has an extra attachment for supporting sheets.
  • a forme cylinder interacts with an impression cylinder.
  • the washing device with the washing roller is likewise arranged in the area of the incoming gap between the forme cylinder and the impression cylinder.
  • the washing device can be pivoted by a corresponding Storage now serve both to clean the cylinder surface of the impression cylinder and to clean a blanket cylinder clamped on the forme cylinder.
  • To mount a new blanket or other printing form on the forme cylinder after the printing form has been attached to the cylinder with one end, the washing roller is turned on the cylinder while it is rotating.
  • the washing roller also takes on the function of an otherwise provided pressure roller.
  • rollers with a soft rubber or fleece cover in particular, but also brushes can be used.
  • the drive of the washing roller is either uncoupled by a coupling to be provided or switched to torque-free in some other way, so that the washing roller can rotate largely smoothly due to the frictional force exerted by the printing form.
  • washing roller for mounting printing forms is particularly advantageous if, for example, Nyloflex plates with a printing surface are to be mounted in the manner of a flexo plate.
  • the resilience of the cover of the washing roller gives an adaptation to the different thickness of the printing form in accordance with the printing and the non-printing areas. Regardless of the subject distribution in such a printing form, the printing form is pressed uniformly over the format width onto the form cylinder.
  • FIG. 1 to 3 show the plate cylinder 1 referred to as the plate cylinder and the blanket cylinder 2 of a printing unit of a sheet-fed offset printing machine. The direction of rotation of these cylinders during printing is indicated by the arrows.
  • a washing device 3 known per se with a washing roller 4 is attached in the inlet area between forme cylinder 1 and blanket cylinder 2. The washing roller 4 extends over the format width of the form and blanket cylinders 1, 2.
  • the washing device 3 can be pivoted by a pivot axis 6, which runs parallel to the axis of the washing roller 4, so that the washing roller 4 can be placed opposite both the blanket cylinder 2 and the forme cylinder 1.
  • the washing device 3 is provided with a swivel drive 7, which can be designed, for example, as a pneumatic cylinder.
  • the washing roller 4 rests on the rubber blanket of the blanket cylinder and the blanket is washed in a manner known per se in accordance with the structure and function of the washing device 3 (FIG. 2). 3, the washing device 3 has been pivoted counterclockwise, so that the washing roller 4 now lies against the circumference of the forme cylinder 1.
  • a printing form 5 designed as an offset printing plate was placed in a corresponding Clamping rail attached and the forme cylinder 1 driven in the direction of rotation of the printing. It can be provided that the washing roller 4 is placed against the forme cylinder exactly when the start of printing of the forme cylinder 1 is approximately opposite the washer roller 4.
  • the washing roller 4 can remain attached to the forme cylinder 1 around the outer circumference of the forme cylinder during the entire mounting process.
  • the washing device 3 is pivoted back into its normal position (FIG. 1) by actuating the swivel drive 7.
  • the washing device 3 and thus the washing roller 4 are only turned on the forme cylinder 1 at the moment when the folded end of the printing form 5 lies opposite the washing roller 4 and the adjusting movement of the washing roller 4 thus does so Introducing the folded end of the printing form 5 into a corresponding clamping device.
  • FIGS. 4 to 6 show the structure of a coating device known per se, as is used in sheet-fed offset printing machines.
  • This consists of a forme cylinder 1, which interacts with a sheet-guiding impression cylinder 8. The direction of rotation of the cylinders is indicated by the arrows.
  • a washing device 3 with a washing roller 4 is arranged such that it can be tilted about a pivot axis 6.
  • Fig. 4 shows the rest position of the washing devices 3, i.e. the washing roller 4 is neither on the forme cylinder 1 nor on the impression cylinder 8.
  • the washing device 3 with the washing roller 4 is placed against the impression cylinder 8, so that the surface carrying the sheet can be cleaned.
  • This serves to remove ink residues, especially in the case of face and back printing, and to remove paper dust (FIG. 5).
  • FIG. 6 shows a washing device 3 with a washing roller 4 attached to the forme cylinder 1.
  • the washing roller 4 or the entire washing device 3 is positioned against the forme cylinder 1 after a printing form 5 has been attached to a corresponding fastening device of the forme cylinder 1.
  • the washing device 3 can be moved with respect to the forme cylinder 1 by means of joints (not shown), for example.
  • joints not shown
  • the printing forms 5 on the forme cylinder 1 can be full-surface or recessed blankets or printed image carriers in the manner of flexo clichés.
  • the washing roller 4 according to the invention can also be used to mount underlay sheets to be attached to the forme cylinder 1. This is particularly advantageous if the support sheet is to be mounted on the forme cylinder 1 with its own fastening devices before the printing form 5 is applied.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Laminated Bodies (AREA)
EP95105418A 1994-05-09 1995-04-11 Dispositif pour fixer des plaques d'impression flexibles Expired - Lifetime EP0681915B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4416296 1994-05-09
DE4416296A DE4416296C2 (de) 1994-05-09 1994-05-09 Vorrichtung zum Aufziehen flexibler Druckformen

Publications (3)

Publication Number Publication Date
EP0681915A2 true EP0681915A2 (fr) 1995-11-15
EP0681915A3 EP0681915A3 (fr) 1996-11-13
EP0681915B1 EP0681915B1 (fr) 1999-01-27

Family

ID=6517655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95105418A Expired - Lifetime EP0681915B1 (fr) 1994-05-09 1995-04-11 Dispositif pour fixer des plaques d'impression flexibles

Country Status (4)

Country Link
EP (1) EP0681915B1 (fr)
JP (1) JP2839857B2 (fr)
AT (1) ATE176198T1 (fr)
DE (2) DE4416296C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2926486A1 (fr) * 2008-01-17 2009-07-24 Goss Int Montataire Sa Procede de changement d'edition sur une presse rotative
DE19818666B4 (de) * 1998-04-27 2010-09-02 Goss International Montataire S.A. Andrückvorrichtung in Druckwerken von Rotationsdruckmaschinen

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4294360B2 (ja) 2003-04-11 2009-07-08 大日本スクリーン製造株式会社 ニス塗布方法、ニス塗布装置および印刷機
DE102009002598B4 (de) * 2009-04-23 2013-04-11 Koenig & Bauer Aktiengesellschaft Verfahren zum Auflegen mindestens einer Gummitucheinheit auf einen Übertragungszylinder
DE102016201139B4 (de) * 2016-01-27 2019-01-10 Kba-Metalprint Gmbh Vorrichtung zum Bedrucken von Hohlkörpern
DE102016201137B4 (de) 2016-01-27 2018-12-27 Kba-Metalprint Gmbh Vorrichtung zum Bedrucken von Hohlkörpern
ES2865548T3 (es) 2017-04-26 2021-10-15 Koenig & Bauer Metalprint Gmbh Unidad impresora para la impresión de soportes de impresión en forma de pliego, máquina impresora de chapa con una unidad impresora de este tipo, así como procedimiento para el montaje de cubiertas sobre los cilindros de unidad impresora de una unidad impresora de una máquina impresora que procesa pliegos
DE102017207050A1 (de) * 2017-04-26 2018-10-31 Kba-Metalprint Gmbh Druckwerk zum Bedrucken bogenförmigen Bedruckstoffs sowie Blechdruckmaschine mit einem derartigen Druckwerk
CN108340672B (zh) * 2018-02-28 2019-11-08 重庆普天印务有限公司 辊压式印刷装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004605A1 (fr) * 1978-04-10 1979-10-17 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer des cylindres de machines à imprimer, en particulier des machines à imprimer offset
DE4218602A1 (de) * 1991-08-28 1993-03-04 Heidelberger Druckmasch Ag Vorrichtung fuer plattenwechsel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3614496A1 (de) * 1986-04-29 1987-11-05 Heidelberger Druckmasch Ag Waschvorrichtung fuer druckzylinder von druckmaschinen
DE3940796A1 (de) * 1989-12-09 1991-06-13 Koenig & Bauer Ag Verfahren und einrichtung zum automatischen wechseln einer druckplatte
JP2570485Y2 (ja) * 1991-06-24 1998-05-06 株式会社小森コーポレーション 印刷機の刷版交換装置
JPH06219458A (ja) * 1993-01-22 1994-08-09 Fuji Electric Co Ltd 樹脂成形品のヒンジ部分の構造

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004605A1 (fr) * 1978-04-10 1979-10-17 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer des cylindres de machines à imprimer, en particulier des machines à imprimer offset
DE4218602A1 (de) * 1991-08-28 1993-03-04 Heidelberger Druckmasch Ag Vorrichtung fuer plattenwechsel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19818666B4 (de) * 1998-04-27 2010-09-02 Goss International Montataire S.A. Andrückvorrichtung in Druckwerken von Rotationsdruckmaschinen
FR2926486A1 (fr) * 2008-01-17 2009-07-24 Goss Int Montataire Sa Procede de changement d'edition sur une presse rotative
WO2009092962A1 (fr) * 2008-01-17 2009-07-30 Goss International Montataire Sa Procédé de changement d'édition sur une presse rotative

Also Published As

Publication number Publication date
EP0681915B1 (fr) 1999-01-27
ATE176198T1 (de) 1999-02-15
DE59504951D1 (de) 1999-03-11
JP2839857B2 (ja) 1998-12-16
EP0681915A3 (fr) 1996-11-13
JPH07304160A (ja) 1995-11-21
DE4416296C2 (de) 1997-09-04
DE4416296A1 (de) 1995-11-16

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