EP0973641B2 - Rouleau de mouillage - Google Patents

Rouleau de mouillage Download PDF

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Publication number
EP0973641B2
EP0973641B2 EP98928134A EP98928134A EP0973641B2 EP 0973641 B2 EP0973641 B2 EP 0973641B2 EP 98928134 A EP98928134 A EP 98928134A EP 98928134 A EP98928134 A EP 98928134A EP 0973641 B2 EP0973641 B2 EP 0973641B2
Authority
EP
European Patent Office
Prior art keywords
roller
dampening
medium
driving rings
rings
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
EP98928134A
Other languages
German (de)
English (en)
Other versions
EP0973641B1 (fr
EP0973641A1 (fr
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
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Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0973641A1 publication Critical patent/EP0973641A1/fr
Publication of EP0973641B1 publication Critical patent/EP0973641B1/fr
Application granted granted Critical
Publication of EP0973641B2 publication Critical patent/EP0973641B2/fr
Anticipated expiration legal-status Critical
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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
    • B41F7/26—Damping devices using transfer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/04—Shells for rollers of printing machines for damping rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/14—Location or type of the layers in shells for rollers of printing machines characterised by macromolecular organic compounds

Definitions

  • the invention relates to a dampening unit with a fountain solution roller of an offset rotary printing machine according to the features of claim 1.
  • DE-OS 14 36 542 is a drivable by a plate cylinder by friction, an elastic coating having fountain solution application roller known.
  • This fountain solution application roller has at both ends on its circumference annularly arranged abutment, which are in rollable contact at both ends on the circumference of the plate cylinder arranged annular supports.
  • a disadvantage of this drive is that both the rings of the abutment and the elastic coating of the driven dampening application roller consist of different materials.
  • a further disadvantage is that the annular support located at the ends of the plate cylinder as a result of the clamped pressure plates both with respect to the plate cylinder have a larger diameter and consist of a different material.
  • the US 51 91 835 A describes a dampening unit of a rotary printing machine with four dampening rollers. A directly cooperating with the forme cylinder fountain solution application roller is frictionally driven, while this. Dampening agent application Wealze upstream fountain solution rollers are positively driven by means of gears.
  • DE-AS 17 61 245 and US 50 33 376 A each disclose a fountain solution roller whose end is provided with a drive ring.
  • the drive ring and the bale of dampening solution roller have the same diameter.
  • the US 52 22 434 A describes a fountain roller and fountain roller, which has spindle-like grooves for transporting paint or fountain solution.
  • the invention has for its object to provide a dampening roller, which is frictionally driven by a located in the dampening unit at any point roller.
  • the achievable with the present invention consist in that the fountain solution roller over its entire surface has a uniform elastic coating, in which both ends due to a "puncture" driving rings are formed inexpensively. Thus, no additional abutment are required.
  • the dampening roller is engageable with their driving rings to each provided with a hard surface roller of the dampening unit and driven by this, without requiring additional supports are required.
  • the dampening solution roller according to the invention is an iridescent, d. H. in the axial direction reciprocable driven dampening drive adjustable.
  • the driving rings have a moisture-dissipating profile. This is used in particular when an iridescent chrome roller is arranged in the dampening solution course in front of the dampening solution application rollers.
  • an iridescent chrome roller is arranged in the dampening solution course in front of the dampening solution application rollers.
  • a dampening unit 1 for a plate cylinder 2 of an offset Rotafionsdruckmaschine consists z. B. from a spray bar 3, softer acts against a chrome roller 4, a fountain solution transfer roller 6 according to the invention, an iridescent dampening roller 7 and acting against the plate cylinder dampening application roller. 8
  • the spray bar 3 may be formed as a known spray nozzle.
  • the dampening roller 7 is unrepresented means, for.
  • a gear train driven by the plate cylinder 2 and may be made of chromium or ceramic (eg, alumina or chromium oxide).
  • Each fountain solution roller 6; 8 has a rubber-elastic coating 9, z. B. on a coat of rubber.
  • the fountain solution roller 6; 8 has an effective bale length or working width of b11 + c (c eg 10 mm) compared with a maximum width b11 of a paper web 11.
  • the working width b11 + c is limited on both sides by annular grooves 13 located on the circumference 12 and introduced into the coating 9. Beyond the annular grooves 13 are ends 14; 16 of the fountain solution transfer roller 6 with a same diameter e having coating 9 of the same material, eg. Gum, the driving rings 17; 18 provided.
  • the driving rings 17; 18 have a width d, z. B. of 30 mm.
  • the changeable wet rubbing roller 7 has an effective working width b11 + c + f and has an axial stroke length f, z. B. of ⁇ 15 mm.
  • the chrome roller 4 has a length which is the working width b11 + c each surmounted on both sides by the amount d.
  • the aforementioned cylinders and rollers 2; 4; 6; 7; 8 are mounted side frame fixed, as the spray bar. 3
  • the mode of operation of the dampening solution roller according to the invention is as follows:
  • the spray bar 3 transfers the dampening solution to the chrome roller 4 over the working width b11 + c.
  • the chrome roller 4 at both ends of the chrome roller 4 each one beyond the working width b11 + c beyond range d dry or provided with little moisture, so that the chrome roller 4 their drive via the drive rings 17; 18 of the fountain solution transfer roller 6 receives.
  • the dampening solution transfer roller 6 receives dampening solution from the chrome roller 4 and passes this on to the iridescent wet rubbing roller 7.
  • the drive of the fountain solution transfer roller 6 takes place frictionally by the both-end areas f of the wet rubbing roller 7, which on the drive rings 17; 18 of the fountain solution transfer roller 6 act.
  • the fountain solution application roller 8 is driven both by the iridescent dampening roller 7 and the plate cylinder 2 by means of frictional engagement. Thus, on the dampening form roller 8 no driving rings 17; 18 needed.
  • the driving rings 17; 18 are both the frictional drive of the drive rings 17; 18 having fountain solution as well as the frictional drive a directly cooperating roller can be used. It may be appropriate, the driving rings 17; 18 to provide with a moisture-dissipating profile.
  • a dampening solution-discharging profile 19 may, for. B. from on the jacket of the driving rings 17; 18 helically encircling grooves 21 which wet the fountain solution in the direction of the ends of the fountain solution roller 6; 8 away transport.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Claims (2)

  1. Dispositif d'humidification avec un rouleau de mouillage (6), dans lequel les deux extrémités (14; 16) du dispositif d'humidification sont munies d'anneaux d'entraînement (17; 18), l'anneau d'entraînement (17; 18), et un corps de cylindre du rouleau de mouillage (6) étant de même diamètre, et le rouleau de mouillage présentant un revêtement (9) ayant l'élasticité du caoutchouc, à tout moment au moins un des anneaux d'entraînement (17; 18) étant en contact par friction avec une des deux extrémités d'un rouleau de friction humide (7), de façon à obtenir un retour d'humidification des rouleaux de friction humide avec l'agent humidifiant pour un refroidissement et une lubrification, en outre du rouleau de mouillage (6) et du rouleau de friction humide (7) étant arrangé un rouleau de chrome (4), sur les deux extrémités du rouleau de chrome (4) une plage (d) dépassant la longueur de travail étant chaque fois sec ou respectivement muni de peu d'agent humidifiant, de sorte que le rouleau de chrome (4) est entraîné par les anneaux d'entraînement (17; 18) du rouleau de mouillage (6).
  2. Rouleau de mouillage selon la revendication 1, caractérisé en ce que les anneaux d'entraînement (17; 18) présente en sa surface d'enveloppe un profilage.
EP98928134A 1997-04-07 1998-04-03 Rouleau de mouillage Expired - Lifetime EP0973641B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19714222A DE19714222C1 (de) 1997-04-07 1997-04-07 Feuchtmittelwalze
DE19714222 1997-04-07
PCT/DE1998/000958 WO1998045117A1 (fr) 1997-04-07 1998-04-03 Rouleau de mouillage

Publications (3)

Publication Number Publication Date
EP0973641A1 EP0973641A1 (fr) 2000-01-26
EP0973641B1 EP0973641B1 (fr) 2001-11-07
EP0973641B2 true EP0973641B2 (fr) 2006-09-20

Family

ID=7825634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98928134A Expired - Lifetime EP0973641B2 (fr) 1997-04-07 1998-04-03 Rouleau de mouillage

Country Status (5)

Country Link
US (1) US6293191B1 (fr)
EP (1) EP0973641B2 (fr)
JP (1) JP3204990B2 (fr)
DE (2) DE19714222C1 (fr)
WO (1) WO1998045117A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004039821A1 (de) * 2004-08-17 2006-02-23 Man Roland Druckmaschinen Ag Druckeinheit sowie Feuchtwerk
WO2006072557A1 (fr) * 2005-01-05 2006-07-13 Koenig & Bauer Aktiengesellschaft Unité d'impression d'une presse d'impression pourvue d'au moins un mécanisme d'encrage et d'au moins un mécanisme mouilleur
US20080289520A1 (en) * 2007-05-21 2008-11-27 Aldo Perrone Printing roller apparatus and method

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126768A (en) * 1938-01-20 1938-08-16 John G Goedike Dampening system for lithographic and analogous presses
DK62913C (da) * 1941-09-27 1944-11-20 Carl Ejner Larsen Fugteværk til Offsettrykkemaskiner og til andre Trykkemaskiner med Fugtighedstilførsel.
US3296964A (en) * 1964-04-09 1967-01-10 Roberts & Porter Inc Dampening roller mechanism for offset printing presses
DE1761245B1 (de) * 1968-04-24 1971-02-04 Web Offset Publications Corp Feuchtwerk fuer Rotationsoffsetdruckmaschinen
DE2007554B1 (de) * 1970-02-19 1971-08-26 Maschinenfabrik Augsburg Nürnberg AG, 8900 Augsburg Alkoholfeuchtwerk für Offsetdruckma schinen
DE2634555C3 (de) * 1976-07-31 1979-08-30 Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg Sprühfeuchtwerk mit einer zum Abschleudern von Feuchtflüssigkeit vorgesehene Rippen aufweisenden Schleuderwalze
FR2513181B1 (fr) * 1981-09-23 1985-10-04 Laborie Fernand Dispositif regulateur de mouillage a prise d'eau en continu pour machine lithographique du type offset
US4864704A (en) * 1988-04-06 1989-09-12 Day International Corporation Interlocking rubber-jacketed end cap and a rubber-covered roll
US4967663A (en) * 1988-10-24 1990-11-06 Coors Porcelain Company Unengraved metering roll of porous ceramic
US5033376A (en) 1989-12-29 1991-07-23 Am International, Inc. Segmented moisture fountain roller assembly for printing or duplicating machines
FR2663588B1 (fr) * 1990-06-21 1992-10-09 Marinoni Harris Sa Systeme de mouillage a film pour presse offset rotative.
US5222434A (en) 1990-07-26 1993-06-29 Petco, Inc. Soft rollers for ink and water feeding rollers used in off-set printing presses
US5329850A (en) * 1992-07-10 1994-07-19 Eduardo Duarte Metering roller for a lithographic printing press
TW298574B (fr) * 1994-03-08 1997-02-21 Syfal Srl
DE4447178A1 (de) * 1994-12-30 1996-07-04 Koenig & Bauer Albert Ag Feuchtwerk für eine Druckmaschine
US5961685A (en) * 1997-03-14 1999-10-05 Owens Corning Fiberglass Technology, Inc. Apparatus for applying a generally uniform sizing composition to glass fibers
US6062138A (en) * 1999-03-30 2000-05-16 Howard A. Fromson Offset printing having blanket cylinder with blanket having different thicknesses

Also Published As

Publication number Publication date
EP0973641B1 (fr) 2001-11-07
JP3204990B2 (ja) 2001-09-04
DE19714222C1 (de) 1998-04-16
US6293191B1 (en) 2001-09-25
EP0973641A1 (fr) 2000-01-26
JP2000510069A (ja) 2000-08-08
DE59802064D1 (de) 2001-12-13
WO1998045117A1 (fr) 1998-10-15

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