EP0080588A1 - Dispositif d'encrage et de mouillage pour une machine à imprimer offset - Google Patents

Dispositif d'encrage et de mouillage pour une machine à imprimer offset Download PDF

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Publication number
EP0080588A1
EP0080588A1 EP82109406A EP82109406A EP0080588A1 EP 0080588 A1 EP0080588 A1 EP 0080588A1 EP 82109406 A EP82109406 A EP 82109406A EP 82109406 A EP82109406 A EP 82109406A EP 0080588 A1 EP0080588 A1 EP 0080588A1
Authority
EP
European Patent Office
Prior art keywords
roller
dampening
application
plate cylinder
metering
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
EP82109406A
Other languages
German (de)
English (en)
Other versions
EP0080588B1 (fr
Inventor
Hermann Beisel
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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
Family has litigation
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0080588A1 publication Critical patent/EP0080588A1/fr
Application granted granted Critical
Publication of EP0080588B1 publication Critical patent/EP0080588B1/fr
Expired 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

Definitions

  • the registration relates. to a dampening inking unit for offset printing machines according to the preamble of claim 1.
  • a known dampening system of this type discloses an immersion roller and a metering roller which are driven by a separate drive at a lower peripheral speed than the plate cylinder.
  • the metering roller interacts with a first friction roller, which is already driven at the peripheral speed of the plate cylinder.
  • Both co-operating rollers have the same direction of rotation, so that the dampening solution is transferred with the opposite direction of movement of the roller surfaces.
  • the dampening roller in turn works together with a first applicator roller, viewed in the direction of rotation of the plate cylinder, which transfers the dampening solution to the plate.
  • an intermediate roller is provided between the first and second applicator rollers.
  • a storage roller can be assigned to the dampening roller.
  • the disadvantage of the known design is that the supply and incorporation of the dampening solution into the ink takes place with the same dampening roller, so that repercussions on the metering roller and contamination with ink cannot be excluded at this point.
  • the opposite direction of movement of the roller surfaces of the metering roller and the friction roller requires precise adjustment in order to avoid unwanted wear of the roller surfaces.
  • DE-PS 678 543 Another known version (DE-PS 678 543) uses fewer rollers in the dampening unit, but is therefore unable to supply the dampening solution to the inking unit and the plate cylinder so uniformly that a streak-free and stencil-free print is produced.
  • the metering roller works directly with an application roller; however, there is no provision of a color / water emulsion before the wet film first touches the plate.
  • the object of the invention is to design a dampening unit for offset printing presses with the least technical effort so that an optimal supply of dampening solution to the printing plate is ensured without stenciling on the printed image being caused by the dampening unit.
  • a major advantage of the invention is that the dampening solution is incorporated into the ink film a second time with the additional friction roller. With the assignment of the distribution roller to the application roller after the dampening solution has been applied, a favorable ink-water emulsion is achieved and the rough chrome surface of the distribution roller prevents water wedge formation between the distribution roller and application roller. The known stenciling effects caused by the dampening solution application via an inking roller are demonstrably avoided.
  • the solution of the problem according to claim 2 has the further advantage that the drive of the additional friction roller and the first applicator roller achieves a different peripheral speed, so that after the dampening solution has been rolled in by the metering roller, the second incorporation has the further advantage done by the friction roller, which in addition to the rolling effect has a lateral movement and a differential speed.
  • a plate cylinder 1, a rubber cylinder 2 and a printing cylinder 3 interact in a known manner.
  • the sheets to be printed are fed from a transfer drum 4 to the printing cylinder 3 and removed from a further transfer drum 5.
  • the sheet receives its imprint between blanket cylinder 2 and impression cylinder 3.
  • the inking of the plate cylinder 1 takes place in a known manner via an inking unit 6.
  • a dampening unit 7 is provided, the details of which are described below.
  • the dampening solution 9 is present in a dampening solution container 8, in which an immersion roller 10 rotates and is wetted by the latter (FIG. 2).
  • the dip roller 10 is mounted in a known manner stationary in the machine side frames, not shown.
  • the surface of the dipping roller is elastic and can e.g. are made of rubber.
  • a dosing roller 11 cooperates with the dipping roller 10 and is provided with a smooth chrome surface and e.g. is pivotally mounted about the dip roller 10 via lever 18.
  • the mounting of the metering roller 11 is designed such that the distance between the two rollers can be adjusted via eccentric bushes 19, so that the thickness of the dampening solution film on the metering roller 11 can be changed.
  • the dipping roller 10 and the metering roller 11 are coupled via spur gears (not shown) and are driven by their own drive at a lower peripheral speed than the plate cylinder 1.
  • the circumferential speed of both rollers can be freely controlled via the drive, the speed set in each case being kept constant.
  • the metering roller 11 interacts with the first application roller 12 as seen in the direction of rotation of the plate cylinder 1, which in turn is connected to the application roller 14 via a non-driven intermediate roller 13. This and the next applicator roller 15 rest against an inking roller 16.
  • the first applicator roller 12 is seen in the direction of rotation of the same after the contact point with the metering roller 11 a stationary in the side frames and driven at the peripheral speed of the plate cylinder 1 driven dampening roller 17. After thus in this execution Example, the rollers 12 to 17 all rotate at the peripheral speed of the plate cylinder 1, there is a speed difference between the applicator roller 12 and the metering roller 11, via which the amount of dampening solution supplied can be changed.
  • the dampening roller 17 is provided with a roughened chrome jacket surface and supports the drive of the application roller 12 provided with an elastic jacket surface. In addition, with its rough chrome surface, the dampening roller 17 intensively works the dampening solution film supplied by the metering roller 11 in the ink film already present on the jacket surface of the application roller 12 a, so that a cheap ink-water emulsion is achieved.
  • the application roller 12 can be pivoted about the dampening roller 17 via levers 20 provided on both sides, so that it can be lifted off the surface of the plate cylinder 1.
  • the metering roller 11 is first lifted off the applicator roller 12 via a pneumatic cylinder 21 and a connecting rod 22, so that the dampening solution supply is interrupted. Then the applicator roller 12 is lifted from the plate cylinder 1, delayed by the elongated hole 23. To set the dampening unit, the metering roller 11 is first placed against the applicator roller 12 and then the applicator roller 12 is placed against the plate cylinder by the metering roller 11.
  • the intermediate roller 13 is placed on the applicator roller 14 by means of a lever 24 and a compression spring 25 and adjusted to the applicator roller 12 by means of the adjusting screw 26, the intermediate roller 13 resiliently abutting the applicator roller 14 in the engaged state.
  • the application roller 12 can be adjusted via eccentric bushes 27 relative to the dampening roller 17 and by means of adjusting screws 28 relative to the metering roller 11.
  • the application roller 12 can be adjusted relative to the plate cylinder 1 via the stop screw 29.
  • the dipping roller 10 is formed on its outer surface of elastic material slightly convex in the longitudinal direction, so that a uniform distribution of the dampening solution is ensured over the length of the roller.
  • the dampening roller 17 assigned to the application roller 12 prevents the formation of water wedges between the latter and the application roller 12 with the rough chrome surface.
  • the lateral back and forth movement of the dampening roller 17 and the rolling motion make it possible to incorporate the dampening solution into the ink film improved and demonstrably avoided a stencil appearance on the printed image.
  • the dampening roller 17 which is driven by a drive, not shown, carries a smaller diameter spur gear 30 which meshes with a spur gear 31 arranged on the application roller 12, whose diameter is larger than the roller diameter.
  • the dampening roller 17 is driven faster by the amount corresponding to the spur gear reduction, so that the application roller 12 rotates at the plate cylinder peripheral speed.
  • the difference in speed between the outer surfaces of the application roller 12 and the dampening roller 17 still improve the incorporation of the dampening solution into the ink film.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Golf Clubs (AREA)
  • Reinforced Plastic Materials (AREA)
  • Polarising Elements (AREA)
  • Coating Apparatus (AREA)
EP82109406A 1981-11-21 1982-10-12 Dispositif d'encrage et de mouillage pour une machine à imprimer offset Expired EP0080588B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3146223 1981-11-21
DE3146223A DE3146223C2 (de) 1981-11-21 1981-11-21 Feucht-Farbwerk für Offsetdruckmaschinen

Publications (2)

Publication Number Publication Date
EP0080588A1 true EP0080588A1 (fr) 1983-06-08
EP0080588B1 EP0080588B1 (fr) 1986-03-19

Family

ID=6146917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109406A Expired EP0080588B1 (fr) 1981-11-21 1982-10-12 Dispositif d'encrage et de mouillage pour une machine à imprimer offset

Country Status (12)

Country Link
US (1) US4440081A (fr)
EP (1) EP0080588B1 (fr)
JP (2) JPS5894465A (fr)
AT (1) AT384778B (fr)
AU (1) AU555974B2 (fr)
CA (1) CA1195179A (fr)
DE (2) DE3146223C2 (fr)
DK (1) DK154195C (fr)
ES (1) ES517510A0 (fr)
MX (1) MX157582A (fr)
NO (1) NO158453C (fr)
ZA (1) ZA827727B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644982A1 (de) * 1986-07-12 1988-11-03 Miller Johannisberg Druckmasch Feuchtwerk fuer offsetdruckmaschinen
FR2624793A1 (fr) * 1987-12-22 1989-06-23 Heidelberger Druckmasch Ag Dispositif de mouillage-encrage pour presses a imprimer offset
EP0387485A2 (fr) * 1989-03-13 1990-09-19 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour changer de position le deuxième rouleau (supérieur) d'une paire de rouleaux intermédiaires de raccordement entre les groupes d'encrage et de mouillage

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59212268A (ja) * 1983-05-11 1984-12-01 ボ−ルドウイン・テクノロジイ・コ−ポレイシヨン 平版印刷機における給湿装置及び方法
DE3334470C2 (de) * 1983-09-23 1991-01-24 Koenig & Bauer AG, 8700 Würzburg Farbwerk für eine Rotationsdruckmaschine
GB2151186B (en) * 1983-12-12 1987-09-09 Baldwin Technology Corp Dampening system
US4841855A (en) * 1984-10-11 1989-06-27 Marcum Charles L Dampening unit for printing press
JPS61501765A (ja) * 1984-10-11 1986-08-21 マ−カム，チヤ−ルズ，エル 印刷機の湿し装置
US4676156A (en) * 1985-11-20 1987-06-30 Graphic Specialties, Inc. Dampening apparatus for printing press
DE3637460A1 (de) * 1985-12-21 1987-07-02 Werner J Kotterer Druckplattenbefeuchtungsvorrichtung
US4741269A (en) * 1986-08-01 1988-05-03 Graphic Specialties, Inc. Dampening apparatus for printing press
CA1240203A (fr) * 1986-10-09 1988-08-09 Robert E. Thistle Systeme de mouillage de presse a imprimer
DE3739893A1 (de) * 1987-11-25 1989-06-08 Heidelberger Druckmasch Ag Farbwerk fuer rotationsdruckmaschinen
DE3923350C1 (fr) * 1989-07-14 1990-05-17 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE3923636C2 (de) * 1989-07-17 1996-05-23 Kotterer Grafotec Druckvorrichtung
DE4003412A1 (de) * 1990-02-05 1991-08-08 Koenig & Bauer Ag Buerstenfeuchtwerk
DE4011039C2 (de) * 1990-04-05 1996-03-14 Roland Man Druckmasch Verfahren zum Befeuchten und Einfärben eines Plattenzylinders einer Mehrfarben-Offset-Bogenrotationsdruckmaschine
DE4013464C2 (de) * 1990-04-27 1995-01-05 Heidelberger Druckmasch Ag Gummieren der Druckform einer Druckmaschine
DE4013741A1 (de) * 1990-04-28 1991-10-31 Heidelberger Druckmasch Ag Offset-druckmaschine mit zwischenwalze zur verbindung von farb- und feuchtwerk
JPH0319952A (ja) * 1990-05-11 1991-01-29 Kanebo Ltd ポリウレタン弾性繊維不織布
US5158017A (en) * 1990-09-11 1992-10-27 Sun Graphic Technologies, Inc. Press dampening system
DE4035865C2 (de) * 1990-11-10 1999-09-23 Koenig & Bauer Ag Feuchtwerk für Druckmaschinen
DE4130138C2 (de) * 1991-09-11 1996-11-21 Klaus Dipl Ing Wittel Wasserführende Walze für ein Feuchtwerk einer Offsetdruckmaschine
DE4140048C2 (de) * 1991-12-05 1995-09-21 Roland Man Druckmasch Farbwerk einer Druckmaschine, insbesondere Bogenoffsetdruckmaschine
DE4140651C2 (de) * 1991-12-10 2000-08-17 Koenig & Bauer Ag Feuchtauftragwalzenantrieb in Druckmaschinen
DE4312523C2 (de) * 1993-04-16 1996-01-18 Heidelberger Druckmasch Ag Feuchtwerk für Offsetdruckmaschinen
DE9305742U1 (fr) * 1993-04-16 1993-06-17 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
JP2882968B2 (ja) * 1993-04-22 1999-04-19 三菱重工業株式会社 オフセット印刷機の給湿装置及び給湿方法
DE19541418A1 (de) * 1995-11-07 1997-05-15 Heidelberger Druckmasch Ag Offsetdruckmaschine
DE19822442A1 (de) 1997-08-04 1999-02-11 Heidelberger Druckmasch Ag Offsetdruckmaschine
JP3364922B2 (ja) 1999-02-22 2003-01-08 船井電機株式会社 ピックアップ装置
DE19911568A1 (de) * 1999-03-16 2000-09-21 Heidelberger Druckmasch Ag Verfahren zum Einfeuchten einer Flachdruckform und Feuchtwerk einer Flachdruckmaschine
DE10008488A1 (de) * 1999-03-17 2000-09-21 Heidelberger Druckmasch Ag Feuchtwerk einer Flachdruckmaschine
US20030172818A1 (en) * 2002-03-13 2003-09-18 Marcel Motard Dampening system for a printing press
JP2003320644A (ja) * 2002-04-30 2003-11-11 Miyakoshi Printing Machinery Co Ltd 水着けローラ駆動装置
US6796228B2 (en) * 2002-12-27 2004-09-28 Day International, Inc. Dampener metering device
DE102004021328B4 (de) * 2003-05-28 2014-01-30 Heidelberger Druckmaschinen Ag Verfahren zum Betrieb einer Druckmaschine
JP2006062528A (ja) * 2004-08-27 2006-03-09 Fujitsu Ten Ltd 軸形状部材とブラケットとの締結構造
DE102008014034A1 (de) * 2008-03-13 2009-09-24 Coatec Gesellschaft für Oberflächenveredelung mbH Walzenkörper mit einem Walzenbezug zur verbesserten Farb-Wasser-Emulsionsbildung in Druckwerken von Nassoffsetmaschinen und Verfahren zu dessen Herstellung
CN103358663B (zh) * 2013-07-09 2015-03-11 上海光华印刷机械有限公司 一种印刷机的水墨系统的排列结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2301334A (en) * 1940-09-09 1942-11-10 Armand C Schulz Printing press
FR1491977A (fr) * 1966-09-12 1967-08-11 Harris Intertype Corp Presse lithographique
DE1411118A1 (de) * 1960-10-03 1969-02-20 Dahlgren Harold P Befeuchtungsvorrichtung fuer Offsetdruckplatten
FR2350203A1 (fr) * 1976-05-03 1977-12-02 Addressograph Multigraph Dispositif et procede d'humidification pour un reproducteur lithographique
GB2035903A (en) * 1978-11-15 1980-06-25 Polygraph Leipzig Moistening apparatus

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433155A (en) * 1965-09-13 1969-03-18 Harris Intertype Corp Mechanism for applying a coating to a plate
DE1940661C3 (de) * 1969-08-09 1973-07-12 Roland Offsetmaschf Feuchteinrichtung fuer lithographische Druckmaschinen
US3673959A (en) * 1970-04-22 1972-07-04 North American Rockwell Dampening system for lithographic printing press
US3769909A (en) * 1971-03-10 1973-11-06 Rockwell International Corp Wet nip dampener
US3842735A (en) * 1972-12-22 1974-10-22 Harris Intertype Corp Lithographic printing apparatus and wash-up device
US3926116A (en) * 1974-07-01 1975-12-16 Webcrafters Inc Dampening apparatus for offset printing press
US4237785A (en) * 1978-04-18 1980-12-09 Dahlgren Harold P Inker for applying newsprint type ink
DE2845932A1 (de) * 1978-10-21 1980-04-24 Heidelberger Druckmasch Ag Kombiniertes feucht-farbwerk fuer offsetdruckwerke
US4287827A (en) * 1979-05-17 1981-09-08 Warner Gordon R Combined inking and moistening roller
DE2932105C2 (de) * 1979-08-08 1982-08-12 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk und Feuchtwerk einer Offsetrotationsdruckmaschine mit zwei Farbwalzensträngen
JPS56501558A (fr) * 1979-11-05 1981-10-29

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2301334A (en) * 1940-09-09 1942-11-10 Armand C Schulz Printing press
DE1411118A1 (de) * 1960-10-03 1969-02-20 Dahlgren Harold P Befeuchtungsvorrichtung fuer Offsetdruckplatten
FR1491977A (fr) * 1966-09-12 1967-08-11 Harris Intertype Corp Presse lithographique
FR2350203A1 (fr) * 1976-05-03 1977-12-02 Addressograph Multigraph Dispositif et procede d'humidification pour un reproducteur lithographique
GB2035903A (en) * 1978-11-15 1980-06-25 Polygraph Leipzig Moistening apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3644982A1 (de) * 1986-07-12 1988-11-03 Miller Johannisberg Druckmasch Feuchtwerk fuer offsetdruckmaschinen
FR2624793A1 (fr) * 1987-12-22 1989-06-23 Heidelberger Druckmasch Ag Dispositif de mouillage-encrage pour presses a imprimer offset
EP0387485A2 (fr) * 1989-03-13 1990-09-19 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour changer de position le deuxième rouleau (supérieur) d'une paire de rouleaux intermédiaires de raccordement entre les groupes d'encrage et de mouillage
EP0387485A3 (fr) * 1989-03-13 1991-03-27 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour changer de position le deuxième rouleau (supérieur) d'une paire de rouleaux intermédiaires de raccordement entre les groupes d'encrage et de mouillage

Also Published As

Publication number Publication date
JPH0236387B2 (fr) 1990-08-16
ES8307592A1 (es) 1983-08-16
NO823889L (no) 1983-05-24
EP0080588B1 (fr) 1986-03-19
DE3146223C2 (de) 1985-03-21
DK154195C (da) 1989-03-28
DK154195B (da) 1988-10-24
AU555974B2 (en) 1986-10-16
NO158453B (no) 1988-06-06
ATA400882A (de) 1987-06-15
DE3146223A1 (de) 1983-06-01
AU9034782A (en) 1983-05-26
DE3270005D1 (en) 1986-04-24
AT384778B (de) 1988-01-11
DK505582A (da) 1983-05-22
NO158453C (no) 1988-09-14
ES517510A0 (es) 1983-08-16
CA1195179A (fr) 1985-10-15
JPH0451348B2 (fr) 1992-08-18
ZA827727B (en) 1983-08-31
JPH03250A (ja) 1991-01-07
JPS5894465A (ja) 1983-06-04
US4440081A (en) 1984-04-03
MX157582A (es) 1988-12-02

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