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EP0518892A1 - Mecanisme d'encrage court pour rotative. - Google Patents

Mecanisme d'encrage court pour rotative.

Info

Publication number
EP0518892A1
EP0518892A1 EP91904417A EP91904417A EP0518892A1 EP 0518892 A1 EP0518892 A1 EP 0518892A1 EP 91904417 A EP91904417 A EP 91904417A EP 91904417 A EP91904417 A EP 91904417A EP 0518892 A1 EP0518892 A1 EP 0518892A1
Authority
EP
European Patent Office
Prior art keywords
roller
cylinder
inking
unit
jacket
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
EP91904417A
Other languages
German (de)
English (en)
Other versions
EP0518892B1 (fr
Inventor
Norbert Georg Weisbrod
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.)
Albert Frankenthal AG
Original Assignee
Albert Frankenthal 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
Priority claimed from DE4101797A external-priority patent/DE4101797A1/de
Application filed by Albert Frankenthal AG filed Critical Albert Frankenthal AG
Publication of EP0518892A1 publication Critical patent/EP0518892A1/fr
Application granted granted Critical
Publication of EP0518892B1 publication Critical patent/EP0518892B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 a short inking unit for an offset rotary printing press with an anilox roller according to the preamble of claim 1.
  • An anilox roller transports ink from a chambered doctor blade system onto an inking roller. The diameter of the anilox roller is smaller than that of the inking roller.
  • the invention has for its object to provide a short inking unit with a screened inking roller, plate and blanket cylinders, all of which have the same scope, for a web-fed rotary printing press, the fountain solution consumption of which during the printing process is significantly reduced compared to the prior art.
  • the advantages that can be achieved with the invention are, in particular, that the dampening water consumption during Printing is reduced by up to 50%. Despite the low consumption of fountain solution, there is no toning. The ink is emulsified significantly less with fountain solution, which results in a more brilliant print image, especially in multi-color printing.
  • Fig. 5 shows a fifth embodiment of the short inking unit according to the invention.
  • a dampening unit preferably a brush dampening unit, which delivers an amount of dampening solution to the inking cylinder 3.
  • the ßürstenfeuchtechnik consists of a brush roller 8, a fountain solution roller 9, a dampening cylinder 7 and a dampening roller 6, which delivers the dampening solution to a form cylinder 4.
  • a paper web 15 is printed between the blanket cylinders 5.1 and 5.2.
  • two additional rollers 13 and 14 are mounted in the side frames 12 or in a pivotable frame.
  • the pivotable frame is mounted so that it can bring the roller 13 out of contact with the forme cylinder 4.
  • the rollers 13, 14 remain in contact with the ink application cylinder 3 when the roller 13 together with the ink application cylinder 3 is turned off from the forme cylinder. Farbauftra cylinder 3 and roller 13 are turned on and off together on the forme cylinder 4.
  • the rollers 13, 14 run under pressure against one another without their own drive.
  • the roller 13 is provided with an oleophilic rubber jacket and makes a reciprocating movement in its longitudinal axis direction. She is employed in the printing operation on the forme cylinder 4.
  • the roller 14 is covered with an oleophilic jacket, e.g. B. provided a polyamide sheath, and makes a back and forth movement in the longitudinal axis direction.
  • This oleophilic jacket of the roller 14 transports a layer of printing ink which is coated on the outside with a finely divided surface dampening solution, e.g. B. water, is wetted and / or has in its interior emulsified with the dampening solution "printing ink.
  • the roller 14 can also be provided with a jacket made of a hydrophilic material, e.g. B. chrome. But it can also run without the back and forth movement. Drives for generating the back and forth movement are known and are not the subject of the invention.
  • Roller 14 is driven by friction from the inking cylinder 3.
  • rollers 13 and 14 can also be mounted on the right side - the side on which the dampening unit is arranged.
  • fountain solution applicator roller 6 and first roller 13 are in rolling contact with the same jacket half of the forme cylinder 4, ie the first roller 13 has contact with the part of the forme cylinder 4 on which the "used" ink flow runs back to the doctor blade (return ink flow).
  • the second roller 14 is of course then arranged on the right side of the inking cylinder 3 and is in rolling contact with it and the first roller 13.
  • Roller 13 is in each case pressed against the forme cylinder 4 - incidentally like the other rollers and cylinders - and form with it a line of contact 20.
  • This line of contact 20 lies in the stream of "fresh color", ie. H. on the circumference of the left half of the forme cylinder 4 or in the flow of the "used” ink on the right half of the forme cylinder 4.
  • the roller 14 and inking cylinder 3 are pressed against one another and form a line of contact 21.
  • This line of contact 21 lies depending on the arrangement the roller 13 in the "return" color stream, i. H. on the circumference of the left half of the inking cylinder 3 (Fig. 1) or in the "fresh” ink stream on the right half of the inking cylinder 3 (Fig. 2).
  • roller 22 with an oleophilic coat from z. B. rubber and another roller 23 with an oleophilic coat z. B. arranged polyamide.
  • the roller 23 can with one be known drive connected so that it performs a reciprocating movement in the longitudinal axis direction via gears.
  • the roller 22 runs under pressure with the roller 14, the roller 23 under pressure with the roller 22 and the inking cylinder 3 and are driven by friction.
  • the rollers 22 and 23 can have their own drive.
  • the roller 23 is thus once in the "used” ink stream (FIG. 3) or in the "fresh” ink stream (FIG. 4) on the inking cylinder 3.
  • roller pair (s) 24, 26 can namely be in rolling contact with the inking cylinder 3 in the "fresh" ink flow when the rollers 13, 14; 22, 23, as described in Fig. 4, are arranged.
  • the rollers 24, 26 can have a drive for their reciprocation in the longitudinal axis direction.
  • the rollers 13, 14, 22, 23, 24, 26 can have the same, but also different diameters.

Landscapes

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

Abstract

Dans un mécanisme d'encrage court à rouleau (2) d'amenée d'encre à cran d'arrêt, le rouleau (3) applicateur d'encre, le cylindre (4) porte-clichés et le cylindre à blanchet (5) ont tous le même diamètre. Un premier rouleau (13) à enveloppe en caoutchouc est associé au cylindre (4) porte-clichés et un deuxième rouleau (14) à enveloppe oléophile est associé au cylindre (3) applicateur d'encre. Les premier et deuxième rouleaux tournent étant en contact de roulement l'un avec l'autre.
EP91904417A 1990-03-03 1991-02-27 Mecanisme d'encrage court pour rotative Expired - Lifetime EP0518892B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE4006720 1990-03-03
DE4006720 1990-03-03
DE4009254 1990-03-22
DE4009254 1990-03-22
DE4101797 1991-01-23
DE4101797A DE4101797A1 (de) 1990-03-22 1991-01-23 Kurzfarbwerk fuer eine rollenrotationsdruckmaschine
PCT/DE1991/000158 WO1991013761A1 (fr) 1990-03-03 1991-02-27 Mecanisme d'encrage court pour rotative

Publications (2)

Publication Number Publication Date
EP0518892A1 true EP0518892A1 (fr) 1992-12-23
EP0518892B1 EP0518892B1 (fr) 1994-06-22

Family

ID=27200930

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91904417A Expired - Lifetime EP0518892B1 (fr) 1990-03-03 1991-02-27 Mecanisme d'encrage court pour rotative

Country Status (5)

Country Link
US (1) US5341733A (fr)
EP (1) EP0518892B1 (fr)
JP (1) JP2566699B2 (fr)
DE (1) DE59102025D1 (fr)
WO (1) WO1991013761A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9310713U1 (de) * 1993-07-17 1993-09-02 Man Roland Druckmaschinen Ag, 63069 Offenbach Farbauftragwalze
DE4438246C1 (de) * 1994-10-26 1995-12-07 Metronic Geraetebau Druckeinrichtung zum Bedrucken von Compact-Discs (CD)
DE19535266A1 (de) * 1995-09-22 1997-04-03 Roland Man Druckmasch Kurzfarbwerk
ES2179518T3 (es) 1997-05-09 2003-01-16 Koenig & Bauer Ag Mecanismo entintador.
US6098540A (en) † 1998-08-10 2000-08-08 Heidelberger Druckmaschinen Ag Apparatus and method for reducing mottling in printing presses
DE10023935B4 (de) 2000-05-17 2004-10-28 Koenig & Bauer Ag Kurzfarbwerk einer Rotationsdruckmaschine
JP2004272956A (ja) * 2003-03-05 2004-09-30 Sanyo Electric Co Ltd 再生装置
ES2324620T3 (es) 2004-04-05 2009-08-11 KOENIG & BAUER AG Unidad impresora de una maquina para imprimir papel continua.
EP1806227A3 (fr) * 2006-01-09 2011-01-19 Koenig & Bauer AG Couple d'impression et unité d'impression d'une machine pouvant imprimer une largeur de six pages de journal
DE102006030290B3 (de) * 2006-03-03 2007-10-18 Koenig & Bauer Aktiengesellschaft Druckwerk
DE102008062027B4 (de) * 2008-01-31 2018-05-17 Heidelberger Druckmaschinen Ag Druckmaschine mit einem Anilox-Farbwerk mit zugehöriger Wascheinrichtung
DE102014006504A1 (de) 2014-05-03 2015-11-05 Georg Schneider Kurzfarbwerk

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3168037A (en) * 1960-05-02 1965-02-02 Harold P Dahlgren Means for dampening lithographic offset printing plates
JPS58220748A (ja) * 1982-06-17 1983-12-22 Akiyama Insatsuki Seizo Kk 印刷機におけるインキ供給機構
DE3334470C2 (de) * 1983-09-23 1991-01-24 Koenig & Bauer AG, 8700 Würzburg Farbwerk für eine Rotationsdruckmaschine
US4619198A (en) * 1984-12-24 1986-10-28 Moll Joseph P Method and apparatus for keyless offset printing
DE3541458A1 (de) * 1985-11-23 1987-05-27 Koenig & Bauer Ag Kurzfarbwerk fuer offsetrotationsdruckmaschinen
JPS63116336U (fr) * 1987-01-23 1988-07-27
DE3706602A1 (de) * 1987-02-28 1988-09-08 Roland Man Druckmasch Farbwerk fuer eine rotations-offsetdruckmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9113761A1 *

Also Published As

Publication number Publication date
JPH05502825A (ja) 1993-05-20
US5341733A (en) 1994-08-30
WO1991013761A1 (fr) 1991-09-19
EP0518892B1 (fr) 1994-06-22
DE59102025D1 (de) 1994-07-28
JP2566699B2 (ja) 1996-12-25

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