EP0668159B1 - Dispositif d'impression offset - Google Patents

Dispositif d'impression offset Download PDF

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Publication number
EP0668159B1
EP0668159B1 EP95100529A EP95100529A EP0668159B1 EP 0668159 B1 EP0668159 B1 EP 0668159B1 EP 95100529 A EP95100529 A EP 95100529A EP 95100529 A EP95100529 A EP 95100529A EP 0668159 B1 EP0668159 B1 EP 0668159B1
Authority
EP
European Patent Office
Prior art keywords
roller
offset printing
dampening
plate cylinder
ink
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
EP95100529A
Other languages
German (de)
English (en)
Other versions
EP0668159A1 (fr
Inventor
Peter Hummel
Robert Ortner
Marc Hinz
Hubertus Conrad-Reclam
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6510432&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0668159(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0668159A1 publication Critical patent/EP0668159A1/fr
Application granted granted Critical
Publication of EP0668159B1 publication Critical patent/EP0668159B1/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
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/36—Inking-rollers serving also to apply ink repellants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing

Definitions

  • the invention relates to an offset printing device with a Plate cylinder, the one with a dampening roller and one Ink works together.
  • An offset printing device of this type is known from DE 3 432 807 C2 known.
  • This device is intended to improve the application of paint, the reduction of scratch and wear effects on the printing form and the removal of slugs (formation of dust / formation of incorrect pressure points) serve and provides a conventional offset printing device represents.
  • the dampening roller is with one of the Circumferential speed of the plate cylinder deviating circumferential speed driven and is in the direction of rotation of the Plate cylinder first inking roller over a bridge roller coupled, which is ink-accepting and with the dampening roller same peripheral speed is driven.
  • the inking unit has two roller strands, from which the first strand has two application rollers and the second strand has a third application roller has a dampening solution supply device assigned to the second strand is.
  • the object of the invention is to develop a solution which eliminates the above disadvantages and is therefore universal for the conventional as well as waterless offset printing is suitable.
  • the task is solved according to the characterizing part of the main claim. Further training results from the subclaims.
  • the object is achieved in that a by a dampening system Inking unit and a plate cylinder carrying the printing form conventional offset printing device optionally also for the waterless offset printing (dry flat printing) is convertible. At Switching to waterless offset printing is carried out in the direction of rotation of the Plate cylinder first inking roller with the neighboring one Moist application roller coupled.
  • the coupling can be achieved through a direct or indirect integration of the Moist application roller, this also applies to several dampening rollers in contact with the plate cylinder, into the inking unit.
  • Another arrangement is indirect Integration of the dampening roller in the inking unit.
  • the first The inking roller is in contact with an inking device, the one Bridge roller is assigned, which in turn with the dampening roller is in contact.
  • the z. B. between Ink roller and dampening roller decoupled the roller.
  • the dampening roller does not get any dampening solution fed and is not integrated directly into the inking unit.
  • the dampening roller is placed over the rotating plate cylinder indirectly integrated into the inking unit.
  • this roller arrangement can optionally use the bridge roller to remove slugs as Dirt roller can be used or removed by Damp applicator roller itself due to different peripheral speeds to the plate cylinder.
  • the dampening rollers are switched to a waterless one Offset printing device integrated to additional inking rollers, which to the peripheral speed of the plate cylinder optionally with the same or different peripheral speed are driven.
  • a dampening roller with a differential speed operated at peripheral speed there is a wiping effect, which is the case of an unfavorable choice of printing material and unfavorable coordination of the printing plates / printing ink combination increasing slugs from the printing form, e.g. a Toray plate (manufactured by Toray Industries, Tokyo, Japan), eliminated. Thanks to this universal design additional devices for removing slugs, e.g. Partisan catchers, dropped.
  • the plate cylinder 2 is a dampening unit 13 and an inking unit 3 are assigned.
  • the dampening unit 13 has a dampening solution container 16 immersing damp duct 17, one with damp duct 17 in Contacting metering roller 15 and one on the plate cylinder 2 and dampening roller 14 resting on dampening roller 17.
  • the inking unit 3 has four inking rollers resting on the plate cylinder 2 4, 7, 9, 11, with the fourth and third inking roller 11, 9 with a color grater 10, the third and second Ink roller 9, 7 with an intermediate roller 8 and the second and first inking roller 7, 4 are in contact with an ink fountain 6. Between the first inking roller 4 and the adjacent dampening roller 14 a bridge roller 5 is arranged adjacent to the optionally a tandem roller 12 can be arranged downstream.
  • the dampening solution is removed from the dampening roller 17 using a metering roller 15 of the dampening roller 14 fed.
  • the dampening roller 14 transfers the dampening solution to the printing form arranged on the plate cylinder 2.
  • the necessary amount of color is from that not described further Roller train of the inking unit 3 over the inking rollers 4, 7, 9, 11 transferred to the printing form of the plate cylinder 2.
  • the plate cylinder 2 is a printing form, e.g. a Toray plate. All inking rollers 4, 7, 9, 11 and the others are not shown rollers of the inking unit 3 remain in their position. In The same position remains the dampening roller 14, which however at a separation point 18 from the remaining single drum roller 15, 17 of the Dampening unit 13 is decoupled. The decoupling at the separation point 18 takes place in the present example by lowering the Dampening duct 17 into the dampening solution container 16.
  • dampening unit 13 is formed by several dampening rollers, so is the separation point 18 after that adjacent to the inking unit 3 Damping roller 14 or another dampening roller to be arranged in such a way that no dampening solution is applied to the dampening rollers 14 is supplied.
  • the dampening roller 14 is in the Single drum roller of the inking unit 3 directly integrated via the bridge roller 5.
  • the bridge roller 5 can also be substituted by a friction roller will.
  • the driven dampening roller 14 is such a transmission technology executed that these optionally synchronous with the peripheral speed of the plate cylinder 2 or at a peripheral speed of the plate cylinder 2 different peripheral speed is operated. During temporary operation with the peripheral speed of the plate cylinder 2 different peripheral speed the dampening roller 14 is a positive effect the wiping effect on the printing form of the plate cylinder 2, which is the especially in waterless offset printing undesirable slugs from the sensitive printing form gently removed.
  • Fig. 3 is a converted device for the waterless Offset printing shown.
  • the dampening roller 14 is one first separation point 18, as already described, from the upstream Dampening rollers, dampening roller 17 and dosing roller 15, decoupled.
  • the dampening roller 14 is with a assigned bridge roller 5 in contact.
  • the first inking roller 4 is in contact with an associated color driver 20. Paint grater 20 and dampening roller 14 are on an intermediate second separation point 19 additionally decoupled.
  • the Ink roller 20 directly with the dampening roller 14 while maintaining the first separation point 18 are in contact.
  • the bridge roller 5 is only on the dampening roller 14. With decoupling at the second separation point 19, the dampening roller 14 is over the plate cylinder 2 with the inking unit 3 in contact.
  • the dampening roller 14 is indirectly in the inking unit 3rd integrated.
  • the dampening roller 14 is with a bridge roller 5, which is driven with friction.
  • the bridge roller 5 is only on the dampening roller 14. When it occurs von Butzen can the dampening roller 14 with a differential speed to the peripheral speed of the plate cylinder 2 are driven.
  • the bridge roller 5 also acts as Dirt roller. After removing these impurities, the Drive the dampening roller 14 with the same peripheral speed to the plate cylinder peripheral speed.
  • the first separation point 18 must remain for waterless offset printing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Details Of Aerials (AREA)
  • Soil Working Implements (AREA)

Claims (7)

  1. Dispositif d'impression offset comportant un cylindre porte-plaque (2), une unité d'encrage (3) et une unité de mouillage (13), formée par une amenée de fluide de mouillage, ainsi que par au moins un rouleau d'application (14) associé au cylindre porte-plaque (2), caractérisé en ce que le rouleau d'application (14) peut être entraíné de façon temporaire à une vitesse périphérique égale ou différente de la vitesse périphérique du cylindre porte-plaque (2), et est mis au contact du cylindre porte-plaque (2), lorsque l'amenée de fluide de mouillage est hors service.
  2. Dispositif d'impression offset selon la revendication 1,
    caractérisé en ce que le rouleau d'application (14) est intégré, lors une impression offset sans eau, dans l'unité d'encrage (3).
  3. Dispositif d'impression offset selon l'une des revendications 1 et 2,
    caractérisé en ce que le rouleau d'application (14) peut être entraíné à une vitesse périphérique différente, de plus de 2%, de la vitesse périphérique du cylindre porte-plaque (2).
  4. Dispositif d'impression offset selon l'une des revendications 1 à 3,
    caractérisé en ce que le rouleau d'application (14) est couplé au premier rouleau d'application d'encre (4) de l'unité d'encrage (3), au moyen d'un rouleau de pontage (5).
  5. Dispositif d'impression offset selon l'une des revendications 1 à 4,
    caractérisé en ce que le rouleau d'application (14) est couplé au premier rouleau d'application d'encre (4) de l'unité d'encrage (3), par l'intermédiaire d'un frottoir d'encrage (20).
  6. Dispositif d'impression offset selon l'une des revendications 1 à 3,
    caractérisé en ce que, pour une impression offset sans eau, le rouleau d'application (14) présente par rapport à l'unité d'encrage (3) une seconde zone de séparation (19) de sorte que le rouleau application (14) est séparé du rouleau (17,15) de guidage de fluide de mouillage et du rouleau (4,6,7,8,9,10,11,12,20,21) de guidage d'encrage, mais est en contact du cylindre porte-plaque (2).
  7. Dispositif d'impression offset selon la revendication 6,
    caractérisé en ce que le rouleau d'application (14) est couplé à un rouleau de pontage (5) sous forme de chargeur baladeur.
EP95100529A 1994-02-17 1995-01-17 Dispositif d'impression offset Expired - Lifetime EP0668159B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4404989A DE4404989C2 (de) 1994-02-17 1994-02-17 Offsetdruckvorrichtung
DE4404989 1994-02-17

Publications (2)

Publication Number Publication Date
EP0668159A1 EP0668159A1 (fr) 1995-08-23
EP0668159B1 true EP0668159B1 (fr) 1998-03-18

Family

ID=6510432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100529A Expired - Lifetime EP0668159B1 (fr) 1994-02-17 1995-01-17 Dispositif d'impression offset

Country Status (4)

Country Link
EP (1) EP0668159B1 (fr)
JP (1) JP2857076B2 (fr)
AT (1) ATE164116T1 (fr)
DE (2) DE4404989C2 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19529205C2 (de) * 1995-08-09 1997-08-14 Roland Man Druckmasch Feuchtwerk für eine Offsetdruckmaschine
DE19529204C2 (de) * 1995-08-09 1997-08-14 Roland Man Druckmasch Feuchtwerk für eine Offsetdruckmaschine
DE19822442A1 (de) 1997-08-04 1999-02-11 Heidelberger Druckmasch Ag Offsetdruckmaschine
DE19734100C5 (de) * 1997-08-07 2007-08-09 Koenig & Bauer Aktiengesellschaft Druckturm einer Druckmaschine
DE10000903A1 (de) 1999-02-05 2000-08-10 Heidelberger Druckmasch Ag Verfahren zum Betrieb einer Druckmaschine und Druckmaschine zur Durchführung des Verfahrens
DE10020227B4 (de) * 2000-04-26 2004-07-15 Man Roland Druckmaschinen Ag Offsetdruckwerk für eine Druckmaschine
JP4824192B2 (ja) * 2000-05-17 2011-11-30 株式会社小森コーポレーション 印刷機のインキ除去方法
DE10046374B4 (de) * 2000-09-20 2014-05-15 Koenig & Bauer Aktiengesellschaft Verfahren zum Betreiben einer Druckeinheit
JP4672428B2 (ja) * 2005-04-28 2011-04-20 リョービ株式会社 渡しローラの着脱装置
JP2007130766A (ja) * 2005-11-08 2007-05-31 Ryobi Ltd 版の異物除去方法
DE102006030290B3 (de) * 2006-03-03 2007-10-18 Koenig & Bauer Aktiengesellschaft Druckwerk
CN108528042A (zh) * 2018-04-11 2018-09-14 浙江创新彩印有限公司 一种全自动胶印机及胶印方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959806A (en) * 1972-10-03 1976-05-25 The Beacon Herald Of Stratford, Limited Water supply apparatus for printing machines
DE2709151A1 (de) * 1977-03-03 1978-09-07 Maschf Augsburg Nuernberg Ag Rotations-flachdruckwerk
SE8000942L (sv) * 1979-02-16 1980-08-17 Dahlgren Mfg Co Valsmanovreringsmekanism
DE2932105C2 (de) * 1979-08-08 1982-08-12 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk und Feuchtwerk einer Offsetrotationsdruckmaschine mit zwei Farbwalzensträngen
DE3308067C1 (de) * 1983-03-08 1984-09-13 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Fluessigkeitszufuehrvorrichtung fuer Farbe und Feuchtfluessigkeit einer Rotationsflachdruckmaschine
GB2151186B (en) * 1983-12-12 1987-09-09 Baldwin Technology Corp Dampening system
IT1214887B (it) * 1985-12-04 1990-01-18 Ghisalberti Luigi Unita' stampante reversibile per macchine off-set conglobante dispositivi per la bagnatura e verniciatura.
US4729308A (en) * 1986-08-04 1988-03-08 Am International, Inc. Convertible moisture/ink system in printing or duplicating machines
JPH088103Y2 (ja) * 1987-06-30 1996-03-06 株式会社篠原鉄工所 オフセット印刷機の共用化通水装置

Also Published As

Publication number Publication date
DE59501616D1 (de) 1998-04-23
ATE164116T1 (de) 1998-04-15
JPH07251499A (ja) 1995-10-03
DE4404989A1 (de) 1995-08-24
JP2857076B2 (ja) 1999-02-10
DE4404989C2 (de) 1995-11-30
EP0668159A1 (fr) 1995-08-23

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