EP1432580A1 - Systeme d'encrage - Google Patents

Systeme d'encrage

Info

Publication number
EP1432580A1
EP1432580A1 EP02754437A EP02754437A EP1432580A1 EP 1432580 A1 EP1432580 A1 EP 1432580A1 EP 02754437 A EP02754437 A EP 02754437A EP 02754437 A EP02754437 A EP 02754437A EP 1432580 A1 EP1432580 A1 EP 1432580A1
Authority
EP
European Patent Office
Prior art keywords
roller
inking
length
ink
rollers
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.)
Withdrawn
Application number
EP02754437A
Other languages
German (de)
English (en)
Inventor
Volker Gerold Rauh
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 EP1432580A1 publication Critical patent/EP1432580A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices

Definitions

  • the invention relates to an inking unit according to the preamble of claims 1, 5, 6 or 7.
  • Such inking units are used in printing machines, in particular
  • Roll rotary printing machines used to transfer the printing ink from a storage container in a suitable form to the plate cylinder.
  • Suitable ink conveyors for example ink ductors, are used to convey the printing ink from the storage container.
  • ink conveying devices are to be understood in general terms as devices with which the pasty printing ink can be conveyed out of the storage container and applied to downstream rollers.
  • conventional ink ductors have, for example, ink knives and ink feed rollers.
  • inking units have at least one inking roller, the outer surface of which can be brought into contact with the outer surface of the plate cylinder.
  • the printing ink conveyed onto the outer surface of the inking rollers can be transferred to the plate cylinder by contact with the outer surface of the plate cylinder.
  • Intermediate rollers are required in inking units to convey the printing ink from the ink fountain roller to the inking roller.
  • These intermediate rollers are arranged in the conveying direction of the printing ink in such a way that the outer surface of an intermediate roller rolls on the outer surface of a downstream intermediate roller. Due to the contact of the lateral surfaces of the intermediate rollers arranged one behind the other in the conveying direction, the printing ink is conveyed from the ink fountain roller to the inking roller.
  • ink transfer rollers and ink rubbing rollers are used as intermediate rollers.
  • Ink rubbing rollers are to be understood to mean rollers or cylinders which can execute an axial movement in the direction of their axis of rotation, so that the Ink is rubbed on the upstream or downstream intermediate roller due to this linear relative movement.
  • Ink rubbing rollers of this type which are also referred to as ink rubbing cylinders, usually have their own rotary drive.
  • the outer surface of the inking rollers is usually formed by a hard plastic coating, for example made from Rilsan.
  • EP 0 028 421 A1 shows an inking unit, the inking rollers of which become longer in the direction of the ink flow.
  • DE 1 090 682 discloses a dampening unit, the lengths of the dampening and immersion rollers lying against one another being reduced in the direction of the inking rollers.
  • the invention has for its object to provide an inking unit.
  • the advantages that can be achieved with the invention are, in particular, that the effort for adapting an inking unit to material webs of different widths is reduced.
  • narrow webs of material for example with a web width of 500 mm
  • all rollers of the inking unit are shortened to the width of the material web to be processed according to the prior art.
  • By using intermediate rollers or inking rollers of different lengths it is possible to adapt only a part of the intermediate rollers or inking rollers specifically to the respectively desired web width. At least some of the intermediate rolls upstream of the specifically adapted rolls can keep their nominal length.
  • the graded length of the intermediate rollers also ensures that the ends of the roller surface, on which colored rings can build up, are rolled over by the next longer intermediate roller, so that ink splashes are avoided.
  • Figure 1 is a schematically illustrated inking unit in a side view.
  • FIG. 2 shows the inking unit according to FIG. 1 in a schematically represented view from the front;
  • Fig. 3 shows the inking unit in a schematic view, the lengths of the rollers being shown in relation to each other.
  • the inking unit 01; 31 is used to apply printing ink 11; 41 on a forme cylinder 02; 32 which in turn is the printing ink 11; 41 on a blanket cylinder 03; 33 transmits.
  • a material web not shown in FIG. 1, for example a paper web, is between the blanket cylinder 03; 33 and an impression cylinder 04 and is carried out by contact with the blanket cylinder 03; 33 printed with the desired print image.
  • a dampening unit 06 with a spray device 07 and various dampening rollers 08 is provided to supply the moisture required for the transfer of the printed image. A certain amount of a pasty printing ink 11; 41 saved.
  • a conveyor 12; 42 e.g. B.
  • a color ductor 12; 42 in cooperation with an ink knife 13, the printing ink 11; 41 be appropriately replenished.
  • a color film of a certain thickness is produced by the color roller 12; 42 on a downstream intermediate roller 14; 44, e.g. B. a film roller 14; 44, transferred.
  • the intermediate rollers 16; 17; 46; 47 e.g. B. ink transfer rollers 16; 17; 46; 47 or the respective intermediate rollers 18; 19; 48; 49, e.g. B. ink rollers 18; 19; 48; 49, the printing ink 11; 41 then on two inking rollers 21; 22; 51; 52 transmitted.
  • the inking unit 01 is shown together with the forme cylinder 02 and the blanket cylinder 03 in a schematic view from the front.
  • a printing material web that is narrower than the nominal width of the printing unit is to be printed with the rubber blanket cylinder 03.
  • the nominal width of the printing unit ie the maximum printing width of the printing unit corresponds to the length of the ink transfer roller 16, which serves as a reference roller 16.
  • the film roller 14 and the ink duct 12 are shown hidden in FIG. 2 by the reservoir 09, so that only the axis for storage on the machine frame 23 can be seen from the film roller 14 in FIG. 2.
  • the width of the inking rollers 21; 22 corresponds to the width of the forme cylinder 02, in particular the width of the printing form, or of the blanket cylinder 03.
  • the inking rollers 21; 22 immediately upstream inking roller 19 is slightly longer than the inking rollers 21; 22.
  • the upstream ink transfer rollers 16; 17 or the inking roller 18 arranged therebetween in each case somewhat longer than the subsequent roller, so that, as a result, a graduated length of the individual intermediate rollers 14; 16; 17; 18; 19 results.
  • 3 shows a further inking unit 31 together with the forme cylinder 32 and the blanket cylinder 33 in a simplified schematic view, the lengths of the rollers being shown relative to one another.
  • the arrangement of the rollers essentially corresponds to the arrangement according to FIG. 2.
  • the reservoir 09 is not shown. Instead, film roller 44 and ink fountain roller 42 are shown.
  • the inking unit 31 consists of at least one inking roller 51; 52, two friction rollers 48; 49, an intermediate roller 46; 47, a film roller 44 and an ink ductor 41.
  • a length of the inking roller 51; 52 is shorter than a length of the friction roller 48; 49th
  • First rubbing roller 48, second rubbing roller 49, ink duct 42, film roller 44 and an intermediate roller 46 abutting the film roller 44 are of the same length.
  • the inking rollers 51; 52 and the forme cylinder 32, in particular the printing form, have the same length.
  • a length of an intermediate roller 47, which between the two friction rollers 48; 49 is arranged, is less than or equal to a length of the friction rollers 48; 49th
  • a length of the intermediate roller 46; 47 is longer than a length of the inking roller 51; 52nd
  • the length of the roller means the length of the effective bale. LIST OF REFERENCE NUMBERS

Landscapes

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

Abstract

L'invention concerne un système d'encrage d'une presse. Ce système comprend au moins un rouleau toucheur dont la surface externe est en contact avec la surface externe d'un cylindre porte-clichés, et au moins un dispositif de transport d'encre doté notamment d'un cylindre d'encrier qui permet la réalimentation en encre à partir d'un réservoir. Ce système comprend également au moins un cylindre intermédiaire (16; 17; 18; 19) qui transfère l'encre du dispositif de transport au cylindre toucheur (21). Au moins un cylindre intermédiaire et/ou le cylindre toucheur est/sont plus court(s) qu'au moins un cylindre intermédiaire monté en amont dans la direction de transport de l'encre.
EP02754437A 2001-10-01 2002-07-25 Systeme d'encrage Withdrawn EP1432580A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2001148501 DE10148501A1 (de) 2001-10-01 2001-10-01 Farbwerk
DE10148501 2001-10-01
PCT/DE2002/002734 WO2003031184A1 (fr) 2001-10-01 2002-07-25 Systeme d'encrage

Publications (1)

Publication Number Publication Date
EP1432580A1 true EP1432580A1 (fr) 2004-06-30

Family

ID=7701056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02754437A Withdrawn EP1432580A1 (fr) 2001-10-01 2002-07-25 Systeme d'encrage

Country Status (3)

Country Link
EP (1) EP1432580A1 (fr)
DE (1) DE10148501A1 (fr)
WO (1) WO2003031184A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008062027B4 (de) 2008-01-31 2018-05-17 Heidelberger Druckmaschinen Ag Druckmaschine mit einem Anilox-Farbwerk mit zugehöriger Wascheinrichtung
DE102013203477B3 (de) * 2013-03-01 2014-01-16 Koenig & Bauer Aktiengesellschaft Druckwerk

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1090682B (de) * 1958-09-04 1960-10-13 Erich Gericke Offset-Druckmaschine mit Feucht- und Farbwerk
US3448686A (en) * 1966-12-05 1969-06-10 Miehle Goss Dexter Inc Form roller setting and control means
EP0039675A1 (fr) * 1979-11-05 1981-11-18 Dahlgren Manufacturing Company Dispositif encreur pour des rotatives

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03031184A1 *

Also Published As

Publication number Publication date
DE10148501A1 (de) 2003-04-30
WO2003031184A1 (fr) 2003-04-17

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