EP0827830A1 - Cylindre - Google Patents

Cylindre Download PDF

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Publication number
EP0827830A1
EP0827830A1 EP97114963A EP97114963A EP0827830A1 EP 0827830 A1 EP0827830 A1 EP 0827830A1 EP 97114963 A EP97114963 A EP 97114963A EP 97114963 A EP97114963 A EP 97114963A EP 0827830 A1 EP0827830 A1 EP 0827830A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
plate
channel
pressure medium
pressure
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
EP97114963A
Other languages
German (de)
English (en)
Other versions
EP0827830B1 (fr
Inventor
Helmut Puschnerat
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0827830A1 publication Critical patent/EP0827830A1/fr
Application granted granted Critical
Publication of EP0827830B1 publication Critical patent/EP0827830B1/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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • 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
    • B41P2227/63—Devices for removing printing plates

Definitions

  • the invention relates to a cylinder of a rotary printing press and a method of lifting a plate according to the preamble of claims 1 and 8.
  • DE 43 03 381 A1 shows a plate cylinder with a device for lifting a pressure plate by means of compressed air.
  • openings are provided in a lateral surface of the plate cylinder below the pressure plate to be lifted, which can be acted upon by compressed air.
  • a disadvantage of this plate cylinder is that irregularities in the printed image can occur due to the openings arranged in the lateral surface or the pressure-free zone is enlarged.
  • the invention has for its object a cylinder and to provide a method of lifting a panel.
  • the cylinder according to the invention is in the drawing shown and is described in more detail below.
  • a cylinder 1 of a rotary printing machine for receiving flexible plates 2 with bent ends 3, 4 with at least one narrow channel 8 which runs parallel to its axis of rotation and extends from a lateral surface 6 of the cylinder 1 into its interior 7.
  • the plate 2 with a thickness d2, z. B. d2 0.3 mm, it is preferably printing plates, for. B. for planographic printing or letterpress printing (in particular flexographic printing, ie carrier plates with a plastic layer) or to carrier plates with z. B. rubber blankets attached to it.
  • the leading end 3 and trailing end 4 each have a bent leg 9, 11.
  • the channel 8 has approximately triangular cross-section.
  • Channel 8 can too almost rectangular in cross section, in the form of a Slot 12, be formed (Fig. 4).
  • At the The end of the channel 8 or slot 12 is parallel bore 16 in the cylinder 1 extending to the channel 8 appropriate.
  • the channel 8 or slot 12 affects the Bore 16 in the form of a chord so that the bore 16 communicates with the channel 8 or slot 12.
  • This wave 17 is in axial direction with several radially outwards acting, sprung pressure pieces 18 provided.
  • the Thrust pieces 18 are fastened in the shaft 17 in such a way that whose pressure cam 19 over a lateral surface 21 of the shaft 17 can also act resiliently.
  • the pressure cams 19 are cylindrical designed so that for each pressure cam 19th results, for example, in a line-shaped contact zone. It it is also possible, for example, to apply the pressure cams 18 to be provided with a ball end at its outer end.
  • the channel 8 has a triangular design and is delimited to receive the leading end 3 of the plate 2 by a side surface 22 inclined by the opening angle alpha, while an opposite side surface 23 is directed perpendicular to the tangent 14, ie in the radial direction extends.
  • a pressure medium supply 26 is arranged in this space 24, which is triangular in cross section and delimited by the two side surfaces 22, 23 and shaft 17. This room can also be closed on its end faces.
  • This pressure medium supply 26 is designed, for example, as a tube 26 or hose with a circular cross section and is provided with a plurality of outlet openings 27 in the longitudinal direction.
  • At least one end of the pressure medium supply 26 has a connection (not shown) for supplying a pressure medium, preferably compressed air.
  • This connection can be permanently connected to a rotary transmitter, so that 1 pressure medium can be supplied to the channel 8 in any position of the cylinder.
  • This pressure medium supply 26, designed as a tube 26 can also be arranged in the shaft 17 (Fig. 2).
  • This U-shaped groove 28 is arranged so that in the unclamped position Shaft 17, the outlet openings 27 of the tube 26 Pressure medium directly into channel 8.
  • the pressure medium supply 26 can also be integrated in the shaft 17.
  • the shaft 17 is provided with an axially extending bore 29, which is connected to outlet openings 31 opening into the channel 8.
  • the pressure cams 19 can also be provided in the longitudinal direction with a bore 34 and with outlet openings 36 extending therefrom and pointing radially outwards. These holes 34 of the pressure cams 19 are connected to one another by means of a flexible tube, for example by means of a hose. It is also possible, in addition to or instead of the bores 29, 34, to arrange a pipe 38 with outlet openings 39 leading into the channel 8 in a recess 37 in a trailing side surface of the channel 8.
  • the channel 8 rectangular cross-section and is therefore as Slot 12, which must also be closed on the front can, executed.
  • the slot 8 is provided with a pressure medium supply.
  • this can consist of one or two one or both end faces of the cylinder 1 arranged bores 33 exist on which a Pressure medium source is connected.
  • the lower end 32 of the slot 8 too enlarge and use it, for example, with a tube 26 Outlet openings 27 corresponding to the first Insert embodiment.
  • Outlet openings 41 to the outer surface 6 of the Cylinder 1 subsequently, d. H. for example rounded or chamfered transition area from the Shell surface 6 to the side surface 23 of the channel 8 arranged.
  • the outlet openings 41 act on the Plate 2 in the area of the bending radius of the trailing folded end 4 of the plate 2.
  • the outlet openings 41 are axial extending pressure medium supply 42 connected.
  • a cylinder 1 in a cylinder 1 one Carries a plurality of plates 2 in the axial direction, to arrange several of these pressure medium feeds 26, each section of the channel 8 then For example, a plate 2 is assigned one own pressure medium supply 26 is assigned.
  • the channel 8 is then preferably in the axial direction in divided individual sections so that individual rooms 24, i.e. Chambers are formed.
  • the sum of the cross sections of all feed openings is to the sum of the cross sections of all openings from which False air can escape, adapted, preferably the supply openings are larger than the false air openings educated.
  • An opening can escape from the false air can be, for example, the gap that is between the two legs 9, 11 of the plate 2 as a result of slightly larger width 8 of the channel 8 can result.
  • the mode of operation of the device according to the invention is as follows:
  • the pressure medium supply is assigned to the shaft 17, the outlet openings of the shaft 17 reach the area of the channel 8.
  • the pressure medium supply 26 is now acted upon by pressure medium, as a result of which pressure medium enters channel 8 and a pressure is built up in channel 8.
  • Channel 8 thus acts as a pressure chamber.
  • the pressure medium acts on the folded end 4 of the plate and pushes the leg 11 of the trailing end 4 out of the channel 8.
  • the trailing end 4 of the plate 2 is thus detached from the lateral surface 6 of the cylinder 1.
  • Pressure medium is preferably supplied until the leg 11 is completely pushed out of the channel 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP97114963A 1996-09-07 1997-08-29 Cylindre Expired - Lifetime EP0827830B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19636412A DE19636412C1 (de) 1996-09-07 1996-09-07 Zylinder
DE19636412 1996-09-07

Publications (2)

Publication Number Publication Date
EP0827830A1 true EP0827830A1 (fr) 1998-03-11
EP0827830B1 EP0827830B1 (fr) 2000-07-12

Family

ID=7804944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97114963A Expired - Lifetime EP0827830B1 (fr) 1996-09-07 1997-08-29 Cylindre

Country Status (4)

Country Link
US (1) US5842419A (fr)
EP (1) EP0827830B1 (fr)
JP (1) JP2996936B2 (fr)
DE (2) DE19636412C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0949072A1 (fr) * 1998-04-09 1999-10-13 MAN Roland Druckmaschinen AG Cylindre d'impression

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19729375A1 (de) * 1997-07-09 1999-01-14 Ltg Lufttechnische Gmbh Vorrichtung zum Befestigen einer biegsamen Platte auf dem Umfang des Zylinders einer Lackiermaschine
DE19924784C2 (de) 1999-05-29 2001-05-31 Koenig & Bauer Ag Vorrichtung zum Befestigen von biegsamen Platten auf einem Zylinder einer Rotationsdruckmaschine mit Drehrichtungsumkehr
DE10108745C1 (de) * 2001-02-23 2002-05-23 Koenig & Bauer Ag Antrieb für eine Welle zum Klemmen und/oder Spannen von Aufzügen auf einem Zylinder
DE102004059338B3 (de) * 2004-08-16 2005-12-22 Koenig & Bauer Ag Verfahren und Vorrichtung zum Abspannen mindestens eines Aufzugs von einem Zylinder einer Druckmaschine
US7618222B2 (en) * 2006-03-01 2009-11-17 Chi Hyun Kim Collated fastener strips with opposing wire connectors
DE102006048093A1 (de) * 2006-10-11 2008-04-17 Koenig & Bauer Aktiengesellschaft Rotationsdruckmaschine mit mindestens einem Druckwerk
DE102008002048B4 (de) * 2008-05-28 2011-03-10 Koenig & Bauer Aktiengesellschaft Verwendung einer Reinigungsanlagen zum Reinigen einer oder mehrere Druckwerkszylinder einer Druckeinheit einer Druckmaschine
US8281716B2 (en) * 2008-12-24 2012-10-09 Printing Research, Inc. Anti-marking jackets comprised of fluoropolymer and methods of using in offset printing
US8578853B2 (en) * 2008-12-24 2013-11-12 Printing Research, Inc. Anti-marking jackets comprised of attachment structure and methods of using in offset printing
US8220388B2 (en) * 2008-12-24 2012-07-17 Printing Research, Inc. Multiple layer anti-marking jackets and methods of using in offset printing
DE102009000511B4 (de) 2009-01-30 2011-02-24 Koenig & Bauer Aktiengesellschaft Reinigungsanlage
US8424453B2 (en) 2010-09-01 2013-04-23 Printing Research, Inc. Apparatus and method for adjusting anti-marking jackets
US8677899B2 (en) 2011-01-31 2014-03-25 Printing Research, Inc. Reversible anti-marking jackets and methods of using
KR20120130517A (ko) * 2011-05-23 2012-12-03 삼성디스플레이 주식회사 러빙 장치
US9346258B2 (en) 2012-05-02 2016-05-24 Printing Research, Inc. Method for cleaning anti-marking jackets

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE318702C (fr) *
DE9320691U1 (de) * 1993-11-30 1994-11-24 Koenig & Bauer Ag Formzylinder
DE4303381A1 (de) * 1993-02-05 1994-12-01 Roland Man Druckmasch Plattenzylinder mit einer Einrichtung zum Anheben einer Druckplatte
EP0686503A1 (fr) * 1994-06-08 1995-12-13 S.A. Martin Dispositif d'accrochage de clichés flexibles sur un cylindre d'impression

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203550C2 (de) * 1992-02-07 1995-07-13 Koenig & Bauer Ag Drehzuführung für druckbeaufschlagbare Medien auf rotierbare Körper
US5335046A (en) * 1993-02-22 1994-08-02 Intergraph Corporation Clamping mechanism for use on a rotatable plotter drum
DE4326251C2 (de) * 1993-08-05 1997-08-28 Koenig & Bauer Albert Ag Gummi-/Drucktuchzylinder
DE4432817A1 (de) * 1994-09-15 1996-03-21 Roland Man Druckmasch Formzylinder
DE19509561C2 (de) * 1995-03-16 1997-10-23 Koenig & Bauer Albert Ag Vorrichtung zum Klemmen von Platten auf einem Zylinder
JP2952752B2 (ja) * 1995-11-17 1999-09-27 株式会社東京機械製作所 刷版の版胴への固定および版胴からの解離装置
DE29600845U1 (de) * 1996-01-19 1996-03-07 Roland Man Druckmasch Vorrichtung zum Befestigen einer Bespannung auf einem Druckwerkzylinder
US5687647A (en) * 1996-04-26 1997-11-18 Heidelberger Druckmaschinen Ag Plate cylinder with fixed tensioning plate mounting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE318702C (fr) *
DE4303381A1 (de) * 1993-02-05 1994-12-01 Roland Man Druckmasch Plattenzylinder mit einer Einrichtung zum Anheben einer Druckplatte
DE9320691U1 (de) * 1993-11-30 1994-11-24 Koenig & Bauer Ag Formzylinder
EP0686503A1 (fr) * 1994-06-08 1995-12-13 S.A. Martin Dispositif d'accrochage de clichés flexibles sur un cylindre d'impression

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0949072A1 (fr) * 1998-04-09 1999-10-13 MAN Roland Druckmaschinen AG Cylindre d'impression
US6129018A (en) * 1998-04-09 2000-10-10 Man Roland Druckmaschinen Ag Impression cylinder with a slot for receiving elastic molded ends of flexible plate

Also Published As

Publication number Publication date
DE59701999D1 (de) 2000-08-17
EP0827830B1 (fr) 2000-07-12
US5842419A (en) 1998-12-01
DE19636412C1 (de) 1998-01-08
JPH1086335A (ja) 1998-04-07
JP2996936B2 (ja) 2000-01-11

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