EP1184172B1 - Cylindre porte-blanchet dans une machine offset rotative - Google Patents

Cylindre porte-blanchet dans une machine offset rotative Download PDF

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Publication number
EP1184172B1
EP1184172B1 EP01119806A EP01119806A EP1184172B1 EP 1184172 B1 EP1184172 B1 EP 1184172B1 EP 01119806 A EP01119806 A EP 01119806A EP 01119806 A EP01119806 A EP 01119806A EP 1184172 B1 EP1184172 B1 EP 1184172B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
blanket
printing press
offset printing
rotary offset
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
EP01119806A
Other languages
German (de)
English (en)
Other versions
EP1184172A2 (fr
EP1184172A3 (fr
Inventor
Thomas Stock
Michael Müller
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 EP1184172A2 publication Critical patent/EP1184172A2/fr
Publication of EP1184172A3 publication Critical patent/EP1184172A3/fr
Application granted granted Critical
Publication of EP1184172B1 publication Critical patent/EP1184172B1/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
    • B41F13/193—Transfer cylinders; Offset cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders

Definitions

  • the invention relates to an offset rotary printing press with a blanket image of a plate cylinder on the substrate transferring blanket cylinder whose surface is covered with a blanket.
  • the invention is based on the object, the print quality to improve in a printing machine of the type mentioned and in particular to eliminate the occurrence of vibration characteristics in the printed image.
  • this object is achieved in that the contact surface on which the blanket rests, is screened.
  • the printing quality can be significantly improved by such screening and the occurrence of development strips or other vibration characteristics is eliminated. This is attributed to the fact that the grid affects the deformation behavior of the blanket in the radial direction and due to the better adhesion in the tangential direction and thereby counteracts vibration-related quality losses.
  • the rastered bearing surface can either be formed directly by the lateral surface of the blanket cylinder.
  • Another advantageous possibility is to provide a pad in the form of a film between the blanket cylinder and the blanket, wherein the blanket facing surface of the film is provided with a grid.
  • foils both metal and plastic foils come into consideration.
  • the thickness of the pad is preferably 0.5 to 1.0 mm. Particularly advantageous is the use of a customary in flexographic printing, rasterized cliché film of elastic photopolymer material has proven to be a pad.
  • an inventively ausgestalteter blanket cylinder for an offset printing machine is shown in section.
  • the blanket cylinder 1 consists of a cylindrical roller made of steel, which has an axially parallel channel 2 extending along the peripheral surface.
  • a pad 3 is stretched, consisting of a cliché foil made of photopolymer material consists.
  • the outer surface of the pad 3 is screened.
  • the blanket 4 is stretched.
  • the device for tensioning the pad 3 and the rubber blanket 4 are located in the channel 2, but they are not shown for reasons of simplicity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (5)

  1. Machine d'impression offset rotative comprenant un cylindre en caoutchouc transmettant l'image imprimée d'un cylindre de plaque au support d'impression, dont la surface est tendue d'un blanchet, caractérisée en ce que la surface d'appuis sur laquelle repose le blanchet (4) est quadrillée.
  2. Machine d'impression offset rotative selon la revendication précédente, caractérisée en ce que la surface d'enveloppe du cylindre en caoutchouc (1) forme la surface d'appui quadrillée pour le blanchet (4).
  3. Machine d'impression offset rotative selon la revendication 1, caractérisée en ce que l'on prévoit entre le cylindre en caoutchouc (1) et le blanchet (4) un subjectile (3) en forme de feuille et en ce que la surface de la feuille tournée vers le blanchet (4) est quadrillée.
  4. Machine d'impression offset rotative selon la revendication 3, caractérisée en ce que l'épaisseur du subjectile (3) est de 0,5 à 1,0 mm.
  5. Machine d'impression offset rotative selon l'une quelconque des revendications 3 ou 4, caractérisée en ce que le subjectile (3) est une feuille de cliché usuelle dans les procédés d'impression flexographique en matériau photopolymère.
EP01119806A 2000-08-29 2001-08-16 Cylindre porte-blanchet dans une machine offset rotative Expired - Lifetime EP1184172B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10042277 2000-08-29
DE10042277A DE10042277A1 (de) 2000-08-29 2000-08-29 Offset-Rotationsdruckmaschine

Publications (3)

Publication Number Publication Date
EP1184172A2 EP1184172A2 (fr) 2002-03-06
EP1184172A3 EP1184172A3 (fr) 2003-02-12
EP1184172B1 true EP1184172B1 (fr) 2006-03-01

Family

ID=7654093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01119806A Expired - Lifetime EP1184172B1 (fr) 2000-08-29 2001-08-16 Cylindre porte-blanchet dans une machine offset rotative

Country Status (3)

Country Link
EP (1) EP1184172B1 (fr)
AT (1) ATE318708T1 (fr)
DE (2) DE10042277A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101608910B (zh) * 2009-07-30 2010-12-29 河南省中原内配股份有限公司 一种检测气缸套内孔珩磨网纹夹角的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3608286A1 (de) * 1985-04-03 1986-10-09 Winfried 7758 Meersburg Heinzel Verfahren zur oberflaechenbehandlung eines druckmaschinenzylinders, druckmaschinenzylinder sowie verwendung derselben
DE19804269A1 (de) * 1998-02-04 1999-08-05 Heidelberger Druckmasch Ag Vorrichtung zum Auftragen einer Flüssigkeit auf einen Bedruckstoffbogen, insbesondere Druck, oder Lackierwerk, in einer Bogenrotationsdruckmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101608910B (zh) * 2009-07-30 2010-12-29 河南省中原内配股份有限公司 一种检测气缸套内孔珩磨网纹夹角的方法

Also Published As

Publication number Publication date
EP1184172A2 (fr) 2002-03-06
DE10042277A1 (de) 2002-03-14
DE50109040D1 (de) 2006-04-27
EP1184172A3 (fr) 2003-02-12
ATE318708T1 (de) 2006-03-15

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