EP0406737B1 - Elément d'impression à offset - Google Patents

Elément d'impression à offset Download PDF

Info

Publication number
EP0406737B1
EP0406737B1 EP90112528A EP90112528A EP0406737B1 EP 0406737 B1 EP0406737 B1 EP 0406737B1 EP 90112528 A EP90112528 A EP 90112528A EP 90112528 A EP90112528 A EP 90112528A EP 0406737 B1 EP0406737 B1 EP 0406737B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
inking
diameter
plate cylinder
printing unit
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
EP90112528A
Other languages
German (de)
English (en)
Other versions
EP0406737A2 (fr
EP0406737A3 (en
Inventor
Thomas John
Georg Bock
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 EP0406737A2 publication Critical patent/EP0406737A2/fr
Publication of EP0406737A3 publication Critical patent/EP0406737A3/de
Application granted granted Critical
Publication of EP0406737B1 publication Critical patent/EP0406737B1/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
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/004—Driving means for ink rollers

Definitions

  • the invention relates to an offset printing unit with a blanket cylinder, a plate cylinder and an inking cylinder having a resilient working surface, which are all driven at the same speed, and an anilox roller supplying ink to the inking cylinder.
  • the inking cylinder has a diameter corresponding to the effective working diameter of the printing form, that is to say the plate cylinder covered with one or more plates, and rotates at the same surface speed and in the area of the contact point with the same direction of rotation.
  • the invention has for its object to provide a printing unit of the type mentioned, in which a grinding movement between the plate cylinder and the inking cylinder is minimized.
  • the printing unit shown comprises a blanket cylinder 1, which is firmly seated on a shaft 2.
  • the shaft 2 is mounted on both ends of the blanket cylinder 1 in a side wall 3.
  • a gear 4 is still firmly attached.
  • a plate cylinder 5 interacts with the blanket cylinder 1.
  • the plate cylinder 5, together with a gear 6, is firmly placed on a shaft 7, which in turn is mounted between the side walls 3.
  • an inking unit which has an ink tray 8.
  • a screen roller 10 seated on a shaft 9 is partially immersed in the ink pan 8.
  • a doctor blade 11 is provided for stripping off the excess ink from the anilox roller 10.
  • an inking cylinder designated overall by 12
  • the inking cylinder sits together with a gear 13 on a shaft 14.
  • the gears 4, 6 and 13 have the same pitch circle diameter and the same module, so that the cylinders 1, 5 and 12 rotate at the same speed.
  • the inking cylinder 12 has a diameter of approximately 99 percent of the diameter of the plate cylinder 5.
  • a layer 16 of an elastic ink-accepting material is applied to its solid core 15, the thickness of which is 2 to 3 percent of the diameter of the inking cylinder 12.
  • the layer also has a hardness of 60 to 70 ° Shore. It expediently consists of rubber or a similar material which is used for the production of rubber blankets.
  • the layer 16 is expediently vulcanized onto the ink application cylinder 12.
  • the teeth of the gear 13 are designed with a negative profile shift.
  • the shaft 14 is mounted by means of an adjustable eccentric bearing 17 in the side wall 3 and in the same way in the opposite side wall.
  • the eccentric bearing 17 By means of the eccentric bearing 17, the inking cylinder 12 can be placed on the plate cylinder 5 during operation such that it is in contact with the plate cylinder 5 in the circumferential direction over a length 1 of approximately 7 to 9 mm.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (2)

  1. Groupe d'impression offset comprenant
    un cylindre porte-blanchet,
    un cylindre porte-plaque,
    un cylindre encreur présentant une surface de travail souple,
    qui sont tous entraînés à la même vitesse de rotation, et un rouleau tramé qui amène l'encre au cylindre encreur,
    caractérisé en ce que le cylindre encreur (12) possède un diamètre d'environ 99 % du diamètre du cylindre porte-plaque (5),
    sur le cylindre encreur (12) est déposée une couche (16) faite d'une matière élastique prenant l'encre, dont l'épaisseur représente 2 à 3 % du diamètre du cylindre encreur (12) et dont la dureté est de 60 à 70° shore et le cylindre encreur (12) peut être appliqué pour le travail contre le cylindre porte-plaque (5) de telle manière que le cylindre encreur (12) soit en contact avec le cylindre porte-plaque (5) sur une longueur (l) d'une longueur de 7 à 9 mm dans la direction circonférentielle.
  2. Groupe imprimant offset selon la revendication 1, caractérisé en ce que la couche (16) est faite d'une matière élastique prenant l'encre, à base de caoutchouc, et est vulcanisée sur le cylindre encreur (12).
EP90112528A 1989-07-06 1990-06-30 Elément d'impression à offset Expired - Lifetime EP0406737B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8908243U DE8908243U1 (de) 1989-07-06 1989-07-06 Offsetdruckwerk
DE8908243U 1989-07-06

Publications (3)

Publication Number Publication Date
EP0406737A2 EP0406737A2 (fr) 1991-01-09
EP0406737A3 EP0406737A3 (en) 1991-06-12
EP0406737B1 true EP0406737B1 (fr) 1994-01-05

Family

ID=6840834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90112528A Expired - Lifetime EP0406737B1 (fr) 1989-07-06 1990-06-30 Elément d'impression à offset

Country Status (5)

Country Link
US (1) US5165341A (fr)
EP (1) EP0406737B1 (fr)
JP (1) JPH0343251A (fr)
CA (1) CA2020082C (fr)
DE (2) DE8908243U1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429048A (en) * 1989-10-05 1995-07-04 Gaffney; John M. Offset lithographic printing press
US6374734B1 (en) 1989-10-05 2002-04-23 Heidelberger Druckmaschinen Ag Tubular printing blanket
DE4335282C2 (de) * 1993-10-15 1998-01-29 Wifag Maschf Verfahren zur Steuerung des Ablaufs einer angetriebenen Farbauftragwalze in Bezug auf einen angetriebenen Formzylinder im Druckwerk einer Offsetrotationsdruckmaschine sowie ein entsprechend gesteuertes Druckwerk
US6006665A (en) * 1997-10-30 1999-12-28 Didde Web Press Corporation Pliable anilox roller
US6098540A (en) * 1998-08-10 2000-08-08 Heidelberger Druckmaschinen Ag Apparatus and method for reducing mottling in printing presses
US7216585B2 (en) * 2001-01-24 2007-05-15 Goss International Americas, Inc. Shaftless motor drive for a printing press with an anilox inker
CN101045367A (zh) * 2006-03-28 2007-10-03 海德堡印刷机械股份公司 网纹辊印刷装置
JP4716508B2 (ja) * 2006-06-01 2011-07-06 株式会社リガク Ｘ線管
JP5113353B2 (ja) * 2006-07-18 2013-01-09 株式会社ミヤコシ 交換胴型輪転機

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2036835A (en) * 1933-12-08 1936-04-07 Miehle Printing Press & Mfg Transfer method and means
GB1230020A (fr) * 1967-06-30 1971-04-28
US3587463A (en) * 1970-05-18 1971-06-28 Wallace H Granger Simplified circulating inking system for rotary newspaper printing press
US4590857A (en) * 1977-03-21 1986-05-27 Dahlgren Harold P Ink metering apparatus
DE2902230A1 (de) * 1979-01-20 1980-07-24 Maschf Augsburg Nuernberg Ag Farbwerk
DE3117341C2 (de) * 1981-05-02 1988-07-07 Albert-Frankenthal Ag, 6710 Frankenthal Farbwerk
US4527471A (en) * 1983-05-06 1985-07-09 Dahlgren Harold P Dampening fluid removal device
US4696229A (en) * 1985-03-26 1987-09-29 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Rotary offset printing press equipped for flying plate change
DE3705194A1 (de) * 1987-02-19 1988-09-01 Frankenthal Ag Albert Farbwerk
DE3706011A1 (de) * 1987-02-25 1988-09-08 Roland Man Druckmasch Kurzfarbwerk
DE3922559C2 (de) * 1989-07-08 1994-03-24 Roland Man Druckmasch Offsetdruckwerk

Also Published As

Publication number Publication date
EP0406737A2 (fr) 1991-01-09
CA2020082C (fr) 1995-01-03
CA2020082A1 (fr) 1991-01-07
JPH0343251A (ja) 1991-02-25
DE8908243U1 (de) 1989-08-17
US5165341A (en) 1992-11-24
DE59004098D1 (de) 1994-02-17
EP0406737A3 (en) 1991-06-12

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