EP0327832A2 - Encrage pelliculaire supérieur pour presses rotatives - Google Patents

Encrage pelliculaire supérieur pour presses rotatives Download PDF

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Publication number
EP0327832A2
EP0327832A2 EP89100630A EP89100630A EP0327832A2 EP 0327832 A2 EP0327832 A2 EP 0327832A2 EP 89100630 A EP89100630 A EP 89100630A EP 89100630 A EP89100630 A EP 89100630A EP 0327832 A2 EP0327832 A2 EP 0327832A2
Authority
EP
European Patent Office
Prior art keywords
roller
film
ink
inking unit
doctor
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
EP89100630A
Other languages
German (de)
English (en)
Other versions
EP0327832A3 (en
EP0327832B1 (fr
Inventor
Rudi Junghans
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
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0327832A2 publication Critical patent/EP0327832A2/fr
Publication of EP0327832A3 publication Critical patent/EP0327832A3/de
Application granted granted Critical
Publication of EP0327832B1 publication Critical patent/EP0327832B1/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
    • B41F31/00—Inking arrangements or devices
    • B41F31/20—Ink-removing or collecting devices
    • 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 film inking unit for rotary printing presses, which has the generic features according to the preamble of claim 1.
  • a generic film inking unit is known from DE-PS 29 42 734. It has a device for the return transport of paint and paint-water mixture, which consists of a cage-like container with a number of rolling elements, which are in mutual contact therein, cannot be rotated in a fixed location and have a circular cross section. At least one of these roller elements can be set in rotation on one side of the container by the ink fountain roller and at least one second roller element can be set in rotation on the other side of the container by a high-speed subsequent roller.
  • Such a device serves for the continuous return of the ink-water mixture from the inking unit to the ink fountain.
  • the rolling elements carry ink from the ink fountain roller over the film roller into the inking unit.
  • the rolling elements which run loosely in the housing in large numbers, represent a considerable effort, which is also associated with additional noise. In order to minimize the amount of ink introduced into the inking unit from the ink fountain, this known device is neither intended nor suitable.
  • FR-PS 1 401 718 describes a short inking unit in which the ink is transferred from an ink fountain roller in direct contact via three intermediate rollers directly to an application roller for the plate cylinder.
  • This inking unit thus belongs to a different genus, but an additional inking roller is known from FIG. 5 of this document, which is arranged next to the rollers that transfer the printing ink and cooperates with a doctor blade.
  • the additional inking roller makes it possible, as described in this document, page 3, left column, fourth paragraph, to combine an ink knife and a doctor blade in such a way that they together form a color reservoir.
  • siphon rollers have hitherto generally been used, as are known, for example, from EP-PS 0 036 103 and other publications, siphon rollers being only temporarily adjustable against the ink fountain roller and pivotable away from it. At high machine speeds, such ink lifters are considerably stressed. Especially when there is little color coverage on one side, the minimum coloration that can still be set is still too high even with lifter rollers.
  • the object of the invention is to design a device for achieving a sufficiently low coloration with the aim to further minimize the adjustable minimum amount of color in a film inking unit.
  • the invention solves this problem by training features according to the characterizing part of patent claim 1.
  • the additional roller With the doctor blade assigned to it, the ink film picked up by the film roller is split before the first contact with an ink roller which leads into the inking unit. Due to the continuous, complete doctoring of the ink film delivered by this additional roller, the major part of the ink taken over by the film roller is returned to the inking unit. This results in a constant exchange of the ink in the inking unit. At the same time, no supersaturated emulsion can form in the inking unit, as it may also occur with siphon inking units if, for example, there is no ink consumption on one side and so-called "dead color", that is, supersaturated emulsion, is formed which can no longer be split back.
  • the amount of dampening solution that comes into the ink fountain with the ink corresponds approximately to the same amount as it gets into the ink fountain at lifter inking units. Due to the constant exchange of the paint, however, there is better mixing, so that the paint-water balance is more stable.
  • a pair of rollers consists of an intermediate roller that contacts the film roller in its direction of rotation in front of the intermediate roller that contacts the ink from the film roller into the inking unit roller, and an doctor blade roller that is parallel to the axis and that has the doctored ink squeegee directly returning to the ink fountain.
  • the squeegee roller with the squeegee can be arranged directly above the ink fountain roller.
  • Such an embodiment is particularly advantageous in connection with an ink fountain roller which has a metering device which can be regulated in zones, as described, for example, in DE-PS 34 01 886 in connection with FIG.
  • the determination of the presetting of the color film is in any case safer than in conventional film inking units, because color is always carried out in each zone. Larger zone openings make it easier for dirt particles to get out of the ink fountain. The exact dosing is considerably facilitated because the adjustment steps per density unit become larger.
  • Another advantage to be emphasized of the new arrangement is that the machine is no longer soiled by drops of paint-water.
  • the ink fountain roller 2 arranged in the ink fountain 1 is equipped with a metering device which can be regulated in zones, as is known per se and therefore has not been shown in more detail in the drawing.
  • Part of the ink film taken up by the film roller 3 is carried into the inking unit via the inking unit roller 5 and further inking unit rollers and finally transferred from the application roller 6 to the plate cylinder 7, through which the blanket cylinder 8 is inked.
  • the film roller 3 comes into contact with the additionally arranged intermediate roller 9, which interacts with a doctor roller 10, which preferably has a hard outer surface, and with a doctor blade 11 resting thereon.
  • the doctor blade 11 is adjustable against the doctor roller 10.
  • the example shows the attachment of the squeegee 11 to a carrier 13 which is supported at both ends in arms 15 and 16 which can be pivoted on the housing 14 and which can be pivoted about the bearing axis 18 by means of a piston-cylinder unit 17 for turning the squeegee 11 on and off .
  • starting and stopping can be done at any, but possibly also at preprogrammed intervals via a corresponding drive control of an actuator, for example in order to be able to regulate the range between a minimum and a maximum ink supply to the inking unit more variably or to achieve a cleaning effect if necessary.
  • the ink film picked up by the film roller 3 first comes into contact with the intermediate roller 9 before the ink film comes into contact with the inking roller 5, which feeds the ink into the inking unit.
  • the major part (approximately 3/4 of the color) of the ink film taken up by the film roller is taken over and delivered to the doctor roller 10, which is constantly completely doctored by the doctor blade 11.
  • the arrangement is chosen so that the doctored paint returns to the ink fountain, as can be seen from the drawing. In free fall, the doctored paint falls back into the paint box or, if necessary, is returned to the paint box.
  • the entire device from the intermediate roller 9, the doctor roller 10 and the doctor 11 across The axis of rotation of the film roller can be pivoted and is thus arranged so that it can be switched off or set as a whole in order to achieve the effect already explained above in another way.
  • the doctor roller 10 can optionally be equipped with a device for heating for the purpose of the invention and can also be axially displaceable, the roller 10 possibly being moved axially only during washing.
EP89100630A 1988-02-11 1989-01-14 Encrage pelliculaire supérieur pour presses rotatives Expired - Lifetime EP0327832B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3804204 1988-02-11
DE3804204A DE3804204A1 (de) 1988-02-11 1988-02-11 Filmfarbwerk fuer rotationsdruckmaschinen

Publications (3)

Publication Number Publication Date
EP0327832A2 true EP0327832A2 (fr) 1989-08-16
EP0327832A3 EP0327832A3 (en) 1990-05-23
EP0327832B1 EP0327832B1 (fr) 1993-08-11

Family

ID=6347169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89100630A Expired - Lifetime EP0327832B1 (fr) 1988-02-11 1989-01-14 Encrage pelliculaire supérieur pour presses rotatives

Country Status (5)

Country Link
US (1) US4960052A (fr)
EP (1) EP0327832B1 (fr)
JP (1) JPH074929B2 (fr)
CA (1) CA1312775C (fr)
DE (2) DE3804204A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923037A1 (de) * 1989-07-13 1991-01-24 Rueesch Ferd Ag Farbzonenfreies, verkuerztes farbwerk
JP2678829B2 (ja) * 1991-03-29 1997-11-19 株式会社イソワ 段ボールシート用印刷機
JP2964246B1 (ja) * 1998-07-27 1999-10-18 株式会社東京機械製作所 キーレス印刷機のインキ貯留装置
DE10112756B4 (de) * 2000-04-26 2012-01-19 Heidelberger Druckmaschinen Ag Filmfarbwerk in einer Druckmaschine und Verfahren zu dessen Reinigung
JP4932999B2 (ja) 2000-04-26 2012-05-16 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 印刷機のインキ装置
DE10020510A1 (de) 2000-04-26 2001-11-15 Roland Man Druckmasch Dosiersystem zum Einfärben von Walzen in einer Druckmaschine
JP2003154630A (ja) * 2001-08-06 2003-05-27 Fuji Photo Film Co Ltd インキ供給装置及び印刷機
US7178461B2 (en) * 2002-12-09 2007-02-20 Color Control Corp. Ink fountain assembly with non-tilt cheeks and liner replacement mechanism
DE10352614A1 (de) 2003-07-11 2005-02-10 Koenig & Bauer Ag Walze eines Farb- oder Feuchtwerkes
DE102004020636A1 (de) 2004-04-27 2005-11-24 Koenig & Bauer Ag Verfahren und Vorrichtungen zum Abstreifen eines Fluids von einer Walze
DE202004021518U1 (de) 2004-09-09 2008-09-04 Koenig & Bauer Aktiengesellschaft Druckmaschinen
DE102006049150B4 (de) * 2006-10-18 2009-11-12 Koenig & Bauer Aktiengesellschaft Farbwerk einer Rotationsdruckmaschine mit einem aus mindestens vier aneinandergereihten Walzen bestehenden Walzenzug
DE102009046976A1 (de) * 2009-11-23 2011-05-26 Manroland Ag Druckwerk und Verfahren zum Betreiben desselben
DE102011011585A1 (de) * 2011-02-18 2012-08-23 Manroland Web Systems Gmbh Druckeinheit für eine Offsetdruckmaschine und Verfahren zum Betreiben der Druckeinheit
DE102012012089A1 (de) * 2011-07-06 2013-01-10 Heidelberger Druckmaschinen Ag Verfahren zum Betreiben eines Anilox-Druckwerksund Druckmaschine mit einem Anilox-Druckwerk

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE639293C (de) * 1936-12-02 Richard Lehmann Farbwerk fuer Druckmaschinen
DE1176674B (de) * 1957-10-10 1964-08-27 Miehle Goss Dexter Inc Farbwerk fuer Rotationsdruckmaschinen
FR1401718A (fr) * 1964-07-03 1965-06-04 Zeuthen & Aagaard As Dispositif d'encrage, en particulier pour machines d'impression offset
GB1159851A (en) * 1965-10-22 1969-07-30 American Can Co Ink Metering System
GB1230020A (fr) * 1967-06-30 1971-04-28
DE2703425B1 (de) * 1977-01-28 1978-03-30 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offset-Druckmaschinen
DE2942734A1 (de) * 1979-10-23 1981-05-07 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk fuer offset-rotationsdruckmaschinen mit einer farbrueckfuehrvorrichtung
EP0036103A1 (fr) * 1980-03-08 1981-09-23 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Encrier transformable pour le transfert de l'encre de façon continue ou par rouleau preneur
EP0064270A1 (fr) * 1981-05-02 1982-11-10 Albert-Frankenthal AG Dispositif d'encrage
DE3134796A1 (de) * 1981-09-02 1983-03-17 Koenig & Bauer AG, 8700 Würzburg "farbwerk fuer eine rolllenrotationsdruckmaschine"
US4619198A (en) * 1984-12-24 1986-10-28 Moll Joseph P Method and apparatus for keyless offset printing
DE3401886C2 (fr) * 1984-01-20 1987-08-27 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2052806A1 (de) * 1970-10-28 1972-05-04 Koenig & Bauer Schnellpressfab Farbwerk fur Druckmaschinen
BE792367A (fr) * 1971-12-06 1973-03-30 Vickers Ltd
CH583097A5 (fr) * 1975-05-05 1976-12-31 Wifag Maschf
DE3230119C2 (de) * 1982-08-13 1984-12-06 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbkastenwalze für ein Farbwerk einer Rotationsdruckmaschine
DE3326916C2 (de) * 1983-07-26 1985-07-11 Werner J. 8901 Diedorf Kotterer Vorrichtung zur Abnahme eines Farbstreifens

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE639293C (de) * 1936-12-02 Richard Lehmann Farbwerk fuer Druckmaschinen
DE1176674B (de) * 1957-10-10 1964-08-27 Miehle Goss Dexter Inc Farbwerk fuer Rotationsdruckmaschinen
FR1401718A (fr) * 1964-07-03 1965-06-04 Zeuthen & Aagaard As Dispositif d'encrage, en particulier pour machines d'impression offset
GB1159851A (en) * 1965-10-22 1969-07-30 American Can Co Ink Metering System
GB1230020A (fr) * 1967-06-30 1971-04-28
DE2703425B1 (de) * 1977-01-28 1978-03-30 Maschf Augsburg Nuernberg Ag Farbwerk fuer Offset-Druckmaschinen
DE2942734A1 (de) * 1979-10-23 1981-05-07 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk fuer offset-rotationsdruckmaschinen mit einer farbrueckfuehrvorrichtung
EP0036103A1 (fr) * 1980-03-08 1981-09-23 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Encrier transformable pour le transfert de l'encre de façon continue ou par rouleau preneur
EP0064270A1 (fr) * 1981-05-02 1982-11-10 Albert-Frankenthal AG Dispositif d'encrage
DE3134796A1 (de) * 1981-09-02 1983-03-17 Koenig & Bauer AG, 8700 Würzburg "farbwerk fuer eine rolllenrotationsdruckmaschine"
DE3401886C2 (fr) * 1984-01-20 1987-08-27 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
US4619198A (en) * 1984-12-24 1986-10-28 Moll Joseph P Method and apparatus for keyless offset printing

Also Published As

Publication number Publication date
DE3804204C2 (fr) 1990-06-28
DE3804204A1 (de) 1989-08-24
DE58905198D1 (de) 1993-09-16
CA1312775C (fr) 1993-01-19
US4960052A (en) 1990-10-02
EP0327832A3 (en) 1990-05-23
EP0327832B1 (fr) 1993-08-11
JPH01232049A (ja) 1989-09-18
JPH074929B2 (ja) 1995-01-25

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