EP0692382A2 - Dispositif de nettoyage d'un encrier d'un machine à imprimer en offset - Google Patents

Dispositif de nettoyage d'un encrier d'un machine à imprimer en offset Download PDF

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Publication number
EP0692382A2
EP0692382A2 EP95108502A EP95108502A EP0692382A2 EP 0692382 A2 EP0692382 A2 EP 0692382A2 EP 95108502 A EP95108502 A EP 95108502A EP 95108502 A EP95108502 A EP 95108502A EP 0692382 A2 EP0692382 A2 EP 0692382A2
Authority
EP
European Patent Office
Prior art keywords
roller
ink
cleaning
ink fountain
inking
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
EP95108502A
Other languages
German (de)
English (en)
Other versions
EP0692382A3 (fr
EP0692382B1 (fr
Inventor
Roland Höll
Peter Hummel
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 EP0692382A2 publication Critical patent/EP0692382A2/fr
Publication of EP0692382A3 publication Critical patent/EP0692382A3/fr
Application granted granted Critical
Publication of EP0692382B1 publication Critical patent/EP0692382B1/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
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/04—Cleaning arrangements or devices for inking rollers

Definitions

  • the invention relates to a device for cleaning an inking unit of an offset printing press, with a separately driven ink fountain roller that dips into an ink fountain, an ink fountain roller and a downstream ink take-off roller of an inking roller.
  • An inking unit of this type is known from DE-AS 2 316 635, in which the cleaning fluid is applied to a first inking roller and the mixture of ink and cleaning fluid is doctored off by a second inking roller.
  • a device for cleaning an inking unit is known from DE 3 606 006 A1, in which the application of the cleaning liquid takes place as a function of the ink layer thickness on the rollers / cylinders, taking into account the strand length. At least two feeds for the cleaning liquid are assigned to the primary and secondary lines of the inking unit.
  • An inking unit for offset printing machines which can be operated as a film inking unit or a lifting inking unit, is known from DE 2 703 424 B1.
  • the inking roller In the lifting operation, the inking roller is pivoted between the ink fountain roller and the assigned inking roller of the roller train.
  • the ink take-off roller When switching to film operation, the ink take-off roller is coupled to the ink fountain roller and the ink lifter roller serves as a rider roller. About an eccentric bearing Ink pick-up roller can be transferred to both positions.
  • a disadvantage of the designs according to DE 2 316 635 and DE 3 606 006 is that the ink fountain roller cannot be cleaned with the rest of the roller train and must therefore be cleaned manually by the operator.
  • the object of the invention is to develop a solution which allows simultaneous cleaning of the ink fountain roller and the downstream roller train.
  • the inking roller is coupled with the ink fountain roller and the ink take-off roller. This cleans the ink fountain roller and the inking roller with the additional inking unit roller. This frees the operator from manual cleaning work, reduces makeready times when changing colors and thus automates the cleaning of the entire inking unit.
  • a lifter inking unit is arranged, of which an ink fountain roller 1 and an ink removal roller 3 are shown.
  • the ink take-off roller 3 is followed by a roller train, to which at least one feed device for the cleaning liquid and a squeegee trough is assigned as a receiving device for the ink / cleaning liquid mixture (not shown).
  • An inking roller 2 is arranged intermittently between the ink fountain roller 1 and the ink removal roller 3.
  • the inking roller 2 is rotatably arranged on the front of a lever 7.
  • Lever 7 is rotatably fixed with an eccentric bearing 4 and carries a cam roller 6 at the free end.
  • the cam roller 6 is assigned a control device 5, for example as a cam disk.
  • the eccentric bearing 4 is connected to a working cylinder 8 via an articulated coupling 9.
  • the mode of operation is as follows: After a print job has ended, after the end of the shift or if the ink / fountain solution ratio is unfavorable, it is necessary to clean the inking unit.
  • the ink fountain roller 1 is decoupled from its separate drive.
  • the ink lifter roller 2 is brought into constant contact with the ink fountain roller 1 and the ink removal roller 3 (cleaning position).
  • the working cylinder 8 is actuated from a control station and moves the lever 7 via the coupling 9 and the eccentric bearing 4, so that the inking roller 2 is brought into the cleaning position.
  • the intermittent movement of the inking roller 2 is suspended in that the cam roller 6 is separated from the control device 5 (see dashed line).
  • the ink fountain roller 1 and ink lifter roller 2 are driven by friction on the downstream roller train.
  • the cleaning liquid supply device is activated and the paint / cleaning liquid mixture is fed from a downstream receiving device, e.g. a squeegee trough, doctored by the inking roller in question.
  • the ink fountain roller 1 remains coupled to its drive, in that it is operated synchronously with the drive for the ink removal roller 3 and the downstream ink roller train in the cleaning position at the same peripheral speed.
  • the ink fountain roller 1 is also driven in the cleaning position with a peripheral speed which is different from that of the ink take-off roller 3. The resulting slip increases the cleaning effect on the roller surface as a result of the wiping effect.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP95108502A 1994-07-13 1995-06-02 Dispositif de nettoyage d'un encrier d'une machine à imprimer en offset Expired - Lifetime EP0692382B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4424590A DE4424590C2 (de) 1994-07-13 1994-07-13 Einrichtung zur Reinigung eines Farbwerkes einer Offsetdruckmaschine
DE4424590 1994-07-13

Publications (3)

Publication Number Publication Date
EP0692382A2 true EP0692382A2 (fr) 1996-01-17
EP0692382A3 EP0692382A3 (fr) 1996-12-11
EP0692382B1 EP0692382B1 (fr) 1998-12-09

Family

ID=6522959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108502A Expired - Lifetime EP0692382B1 (fr) 1994-07-13 1995-06-02 Dispositif de nettoyage d'un encrier d'une machine à imprimer en offset

Country Status (5)

Country Link
US (1) US5575210A (fr)
EP (1) EP0692382B1 (fr)
JP (1) JP3004568B2 (fr)
AT (1) ATE174266T1 (fr)
DE (2) DE4424590C2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19739283C2 (de) * 1997-09-08 2002-10-24 Roland Man Druckmasch Verfahren zum Erreichen des Fortdruckzustandes in einer Rollenrotationsdruckmaschine
DE19800475A1 (de) * 1998-01-09 1999-07-15 Koenig & Bauer Ag Verfahren und Einrichtung zur Beeinflussung der Farbverteilung
DE19801623B4 (de) * 1998-01-17 2004-02-05 Man Roland Druckmaschinen Ag Verfahren zum Betrieb einer Offset-Rotationsdruckmaschine
DE10100910B4 (de) * 2000-02-09 2012-03-08 Heidelberger Druckmaschinen Ag Heberfarbwerk für Druckmaschinen
DE10112756B4 (de) * 2000-04-26 2012-01-19 Heidelberger Druckmaschinen Ag Filmfarbwerk in einer Druckmaschine und Verfahren zu dessen Reinigung
DE102004059852B4 (de) * 2003-12-11 2007-12-27 Koenig & Bauer Aktiengesellschaft Farbheber in Druckmaschinen
DE102007010761A1 (de) * 2007-03-06 2008-09-11 Man Roland Druckmaschinen Ag Reinigungseinrichtung für Leitwalzen einer Druckeinheit
CN111216439B (zh) * 2018-02-09 2021-08-03 海宁光圣晶体材料有限公司 一种用于凹版印刷机供墨系统的墨辊轴颈刮墨装置
DE102020120996A1 (de) 2020-08-10 2022-02-10 Koenig & Bauer Ag Druckwerk mit einem Formzylinder und einem den Formzylinder im Betrieb einfärbenden Farbwerk
DE102020120997B4 (de) 2020-08-10 2025-12-11 Koenig & Bauer Ag Verfahren zum Betreiben eines Druckwerks einer Druckmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2316635B2 (de) 1972-04-04 1977-05-05 Ausscheidung in: 23 65 738 A.B. Dick Co., Chicago, Dl. (V.StA.) Reinigungsvorrichtung fuer das aus einer farbkastenwalze, einer heberwalze und einer zwischenwalze bestehende farbwerk einer klein-offsetdruckmaschine
DE2703424B1 (de) 1977-01-28 1978-08-10 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offset-Druckmaschinen
DE3606006A1 (de) 1985-04-12 1986-10-16 Kba-Planeta Ag, 01445 Radebeul Einrichtung zum aufbringen und dosieren von reinigungsfluessigkeit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1082409A (en) * 1911-05-23 1913-12-23 Cottrell C B & Sons Co Offset mechanism for printing-machines.
US3683805A (en) * 1970-07-23 1972-08-15 Harris Intertype Corp Liquid handling mechanism
US3842735A (en) * 1972-12-22 1974-10-22 Harris Intertype Corp Lithographic printing apparatus and wash-up device
JPS57120443A (en) * 1981-01-21 1982-07-27 Dainippon Screen Mfg Co Ltd Ink feeder for plate cylinder of printing plate
US4643092A (en) * 1986-02-12 1987-02-17 Miyakoshi Printing Machinery Co., Ltd. Easy-to-clean inking mechanism for a printing press
US5251566A (en) * 1990-08-31 1993-10-12 Ricoh Company, Ltd. Stencil printer with a cam baissed press roller
DE9110345U1 (de) * 1991-08-22 1991-10-10 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Feuchtwerk für Offsetdruckmaschinen
JPH0632036U (ja) * 1992-10-05 1994-04-26 株式会社篠原鉄工所 インキローラの洗浄装置
DE4322615C2 (de) * 1993-07-07 1997-10-23 Heidelberger Druckmasch Ag Wascheinrichtung für das Farbwerk von Rotationsdruckmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2316635B2 (de) 1972-04-04 1977-05-05 Ausscheidung in: 23 65 738 A.B. Dick Co., Chicago, Dl. (V.StA.) Reinigungsvorrichtung fuer das aus einer farbkastenwalze, einer heberwalze und einer zwischenwalze bestehende farbwerk einer klein-offsetdruckmaschine
DE2703424B1 (de) 1977-01-28 1978-08-10 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offset-Druckmaschinen
DE3606006A1 (de) 1985-04-12 1986-10-16 Kba-Planeta Ag, 01445 Radebeul Einrichtung zum aufbringen und dosieren von reinigungsfluessigkeit

Also Published As

Publication number Publication date
US5575210A (en) 1996-11-19
ATE174266T1 (de) 1998-12-15
DE4424590A1 (de) 1996-01-18
JP3004568B2 (ja) 2000-01-31
DE59504467D1 (de) 1999-01-21
DE4424590C2 (de) 1997-12-18
EP0692382A3 (fr) 1996-12-11
JPH0839788A (ja) 1996-02-13
EP0692382B1 (fr) 1998-12-09

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