EP0308663B1 - Damping apparatus for a rotary printing machine - Google Patents

Damping apparatus for a rotary printing machine Download PDF

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Publication number
EP0308663B1
EP0308663B1 EP88113640A EP88113640A EP0308663B1 EP 0308663 B1 EP0308663 B1 EP 0308663B1 EP 88113640 A EP88113640 A EP 88113640A EP 88113640 A EP88113640 A EP 88113640A EP 0308663 B1 EP0308663 B1 EP 0308663B1
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EP
European Patent Office
Prior art keywords
metering
roller
rollers
outer cylindrical
dampening
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
EP88113640A
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German (de)
French (fr)
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EP0308663A3 (en
EP0308663A2 (en
Inventor
Hans-Jürgen Kusch
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
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Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0308663A2 publication Critical patent/EP0308663A2/en
Publication of EP0308663A3 publication Critical patent/EP0308663A3/en
Application granted granted Critical
Publication of EP0308663B1 publication Critical patent/EP0308663B1/en
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
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/26—Damping devices using transfer rollers

Definitions

  • the invention relates to a dampening system for offset rotary printing presses with a scoop roller which is partially immersed in the dampening fluid, with subsequent rollers which transfer the dampening fluid to the printing plate and with an elastic metering agent which interacts with the scoop roller.
  • Such a dampening system is shown in DE-PS 2054678, in which a scoop roller is assigned a metering roller for metering the amount of dampening solution to be transferred to the printing plate.
  • metering rollers are provided with an elastic jacket surface and are positioned on the scoop roller via an eccentric bearing in order to squeeze out the dampening solution and thus reduce it. It has now been found that the metering range of the metering roller does not correspond to practical requirements in the case of such a dampening unit. Depending on the hardness of the metering roller, for example, there is too much dampening solution at high printing speeds and the result is a pale print and the ink tends to emulsify.
  • the object is achieved in that two or more metering rollers with elastic jacket surfaces are provided as metering means, the jacket surfaces of which have different degrees of hardness, the metering rollers being alternately adjustable against the scoop roller in such a way that metering rollers with a higher degree of hardness are employed with increasing printing speed .
  • This solution ensures that, for example, when using two or three metering rollers at low speed a metering roller with a relatively soft outer surface is placed against the scoop roller and a metering roller with a higher degree of hardness is set as the machine speed increases. This allows the dampening solution on the scoop roller to be reduced as much as is necessary for the respective printing work, even at higher hydrodynamic pressures.
  • the subclaims characterize advantageous embodiments of the invention, the means provided permitting a continuous transfer of the pressure from the hard to the soft metering roller and vice versa, or, if desired, also allowing the metering rollers to be changed in stages.
  • the position of the individual metering rollers can be adjusted very precisely via the provided eccentric. If an electric motor is used to actuate the eccentric, the control of the electric motor can be derived from the speed control of the machine.
  • FIGS. 1 and 2 show a plate cylinder 1 to which an application roller 2 with an elastic jacket surface is assigned.
  • the application roller 2 in turn is assigned four rollers 3, 4, 5, 6 of an inking unit, not shown.
  • the applicator roller 2 is assigned a roller 7 of the dampening unit 8, which is supplied by a scoop roller 9 and an intermediate roller 10.
  • the scoop roller 9 is partially immersed in the Moist liquid 11, which is provided in a liquid container 12.
  • the scoop roller 9 is assigned two metering rollers 13, 14, which have an elastic jacket surface.
  • the metering roller 13 is provided with a rubber jacket surface which has a degree of hardness of 50 to 60 Shore.
  • the metering roller 14 is formed with a softer rubber jacket surface of 30 to 40 degrees of hardness.
  • Each metering roller 13, 14 is supported on both sides in an angle lever 15, 16, which is pivotally attached to a lever 19 with a lever arm 17, 18, which in turn is arranged on the machine side frame. This makes it possible to either apply the metering roller 13 or the metering roller 14 to the scoop roller 9.
  • the axis 27 can be pivoted, for example by 90, by means of a metering lever 28 attached to it, so that the metering roller 13 or the metering roller 14 can alternately be set against the scoop roller 9, the eccentrics being able to be designed such that a certain transition phase is given, in which one metering roller is relieved and the other is loaded.
  • the setting pressure of the individual metering rollers 13, 14 on the scoop roller 9 can also be infinitely adjusted via the metering lever 28 and the adjusting eccentrics 25, 26.
  • a servomotor can be arranged on the axis 27 with the adjusting eccentrics 25 and 26, which adjusts the metering roller 14 with a soft rubber jacket surface at low speed and the metering roller 13 with a hard rubber jacket surface to the scoop roller 9 at a higher machine speed.
  • the control circuit of such a servomotor can be derived from the machine control itself in two or more speed levels of the printing press.
  • metering rollers can be used with different hydrodynamic forces of the dampening solution according to the respective machine speed, which are able to carry out an exact metering of the amount of dampening solution without excessive contact pressure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung bezieht sich auf ein Feuchtwerk für Offset-Rotationsdruckmaschinen mit einer in die Feuchtflüssigkeit teilweise eintauchenden Schöpfwalze, mit nachfolgenden, die Feuchtflüssigkeit auf die Druckplatte übertragenden Walzen und mit einem, mit der Schöpfwalze zusammenwirkenden, elastischen Dosiermittel.The invention relates to a dampening system for offset rotary printing presses with a scoop roller which is partially immersed in the dampening fluid, with subsequent rollers which transfer the dampening fluid to the printing plate and with an elastic metering agent which interacts with the scoop roller.

Ein derartiges Feuchtwerk zeigt die DE-PS 2054678, bei der einer Schöpfwalze eine Dosierwalze zum Dosieren der auf die Druckplatte zu übertragenden Feuchtmittelmenge zugeordnet ist. Derartige Dosierwalzen sind mit einer elastischen Mantelfläche versehen und werden über eine exzentrische Lagerung an die Schöpfwalze angestellt, um das Feuchtmittel abzuquetschen und damit zu reduzieren. Es hat sich nun ergeben, daß bei einem derartigen ausgebildeten Feuchtwerk der Dosierbereich der Dosierwalze nicht den praktischen Erfordernissen entspricht. Je nach Härte der Dosierwalze hat man z.B. bei hoher Druckgeschwindigkeit zuviel Feuchtmittel und es entsteht ein blasser Druck und die Farbe neigt leicht zum Emulgieren. Beiniedriger Druckgeschwindigkeit kann Zu wenig Feuchtmittel gefördert werden, so daß die Druckplatte zuschmiert. Hierzu kommt, daß bei unterschiedlichen Betriebstemperaturen in der Maschine das genaue Dosieren der zugeführten Feuchtmittelmenge noch erschwert wird, denn bei kalter Maschine wird zuviel Feuchtmittel gefördert und bei warmer Maschine reduziert sich das geförderte Feuchtmittel wegen der hohen Verdunstung und der höheren Viskosität des Feuchtmittels.Such a dampening system is shown in DE-PS 2054678, in which a scoop roller is assigned a metering roller for metering the amount of dampening solution to be transferred to the printing plate. Such metering rollers are provided with an elastic jacket surface and are positioned on the scoop roller via an eccentric bearing in order to squeeze out the dampening solution and thus reduce it. It has now been found that the metering range of the metering roller does not correspond to practical requirements in the case of such a dampening unit. Depending on the hardness of the metering roller, for example, there is too much dampening solution at high printing speeds and the result is a pale print and the ink tends to emulsify. At a low printing speed, too little dampening solution can be conveyed so that the printing plate smears up. In addition, at different operating temperatures in the machine, the exact metering of the amount of dampening solution supplied is made even more difficult, because too much dampening solution is conveyed on a cold machine, and on a warm machine the dampening solution conveyed is reduced due to the high evaporation and the higher viscosity of the dampening solution.

Diese Nachteile wurden bei der bisher bekannten Dosierwalze soweit wie möglich über separate, regelbare Antriebe ausgeglichen, um auch bei unterschiedlichen Druckgeschwindigkeiten eine möglichst gleichmäßige Feuchtmittelzufuhr zu gewährleisten. Der hier benötigte regelungs-, antriebs- und schaltungstechnische Aufwand verteuert das Feuchtwerk erheblich.These disadvantages have been compensated for as far as possible with separate, controllable drives in the previously known metering roller in order to ensure the most uniform possible dampening solution supply even at different printing speeds. The control, drive and circuitry required here makes the dampening system considerably more expensive.

Ausgehend von diesen Gegebenheiten ist es die Aufgabe der Erfindung, eine exakte Zumessung der benötigten Feuchtmittelmenge auch bei unterschiedlichen Maschinengeschwindigkeiten zu gewährleisten.Based on these circumstances, it is the object of the invention to ensure an exact metering of the amount of dampening solution required, even at different machine speeds.

Gemäß der Erfindung wird die Aufgabe dadurch gelöst, daß als Dosiermittel zwei oder mehrere Dosierwalzen mit elastischen Mantelflächen vorgesehen sind, deren Mantelflächen unterschiedliche Härtegrade aufweisen, wobei die Dosierwalzen wechselweise an die Schöpfwalze anstellbar sind, derart, daß bei steigender Druckgeschwindigkeit Dosierwalzen mit höherem Härtegrad angestellt sind. Mit dieser Lösung wird erreicht, daß z.B. bei Verwendung von zwei oder drei Dosierwalzen bei geringer Geschwindigkeit eine Dosierwalze mit relativ weicher Mantelfläche an die Schöpfwalze angestellt wird und bei steigender Maschinengeschwindigkeit eine Dosierwalze mit höherem Härtegrad angestellt wird. Hiermit läßt sich auch bei höherem hydrodynamischen Druck das Feuchtmittel auf der Schöpfwalze soweit reduzieren, wie dies für die jeweilige Druckarbeit erforderlich ist.According to the invention, the object is achieved in that two or more metering rollers with elastic jacket surfaces are provided as metering means, the jacket surfaces of which have different degrees of hardness, the metering rollers being alternately adjustable against the scoop roller in such a way that metering rollers with a higher degree of hardness are employed with increasing printing speed . This solution ensures that, for example, when using two or three metering rollers at low speed a metering roller with a relatively soft outer surface is placed against the scoop roller and a metering roller with a higher degree of hardness is set as the machine speed increases. This allows the dampening solution on the scoop roller to be reduced as much as is necessary for the respective printing work, even at higher hydrodynamic pressures.

Die Unteransprüche kennzeichnen vorteilhafte Ausgestaltungen der Erfindung, wobei die vorgesehenen Mittel einen kontinuierlichen übergang der Pressung von der harten zur weichen Dosierwalze und umgekehrt ermöglichen, oder, falls dies gewünscht ist, auch einen stufenweisen Wechsel der Dosierwalzen ermöglichen. Über die vorgesehenen Stellexzenter läßt sich die Stellung der einzelnen Dosierwalzen sehr exakt einstellen. Bei Verwendung eines Elektromotors zum Betätigen der Stellexzenter kann die Steuerung des Elektromotors von der Geschwindigkeitssteuerung der Maschine abgeleitet werden.The subclaims characterize advantageous embodiments of the invention, the means provided permitting a continuous transfer of the pressure from the hard to the soft metering roller and vice versa, or, if desired, also allowing the metering rollers to be changed in stages. The position of the individual metering rollers can be adjusted very precisely via the provided eccentric. If an electric motor is used to actuate the eccentric, the control of the electric motor can be derived from the speed control of the machine.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen schematisch dargestellt. Es zeigt:

Fig. 1
ein Feuchtwerk mit angestellter harter Dosierwalze für hohe Maschinengeschwindigkeiten
Fig. 2
ein Feuchtwerk mit angestellter weicher Dosierwalze für niedrige Geschwindigkeiten.

An embodiment of the invention is shown schematically in the drawings. It shows:
Fig. 1
a dampening unit with an attached hard metering roller for high machine speeds
Fig. 2
a dampening system with a soft metering roller for low speeds.

Die in Fig. 1 und 2 wiedergegebene Darstellung zeigt einen Plattenzylinder 1, dem eine Auftragwalze 2 mit elastischer Mantelfläche zugeordnet ist. Der Auftragwalze 2 wiederum sind vier Walzen 3, 4, 5, 6 eines nicht dargestellten Farbwerks zugeordnet. Weiterhin ist der Auftragwalze 2 eine Walze 7 des Feuchtwerks 8 zugeordnet, die von einer Schöpfwalze 9 und einer Zwischenwalze 10 versorgt wird. Hierbei taucht die Schöpfwalze 9 teilweise in die Feuchtflüßigkeit 11 ein, die in einem Flüßigkeitsbehälter 12 vorgesehen ist.The representation shown in FIGS. 1 and 2 shows a plate cylinder 1 to which an application roller 2 with an elastic jacket surface is assigned. The application roller 2 in turn is assigned four rollers 3, 4, 5, 6 of an inking unit, not shown. Furthermore, the applicator roller 2 is assigned a roller 7 of the dampening unit 8, which is supplied by a scoop roller 9 and an intermediate roller 10. Here, the scoop roller 9 is partially immersed in the Moist liquid 11, which is provided in a liquid container 12.

Der Schöpfwalze 9 sind zwei Dosierwalzen 13, 14 zugeordnet, die eine elastische Mantelfläche aufweisen. Im gezeigten Ausführungsbeispiel ist die Dosierwalze 13 mit einer Gummimantelfläche versehen, die einen Härtegrad von 50 bis 60 Shore aufweist. Die Dosierwalze 14 ist mit einer weicheren Gummimantelfläche von 30 bis 40 Shore Härtegraden ausgebildet. Jede Dosierwalze 13, 14 ist beiderseits in je einem Winkelhebel 15, 16 gelagert, der mit einem Hebelarm 17, 18 auf einem Bolzen 19 schwenkbar befestigt ist, der wiederum am Maschinenseitengestell angeordnet ist. Hiermit ist es möglich, entweder die Dosierwalze 13, oder die Dosierwalze 14 an die Schöpfwalze 9 anzustellen.The scoop roller 9 is assigned two metering rollers 13, 14, which have an elastic jacket surface. In the exemplary embodiment shown, the metering roller 13 is provided with a rubber jacket surface which has a degree of hardness of 50 to 60 Shore. The metering roller 14 is formed with a softer rubber jacket surface of 30 to 40 degrees of hardness. Each metering roller 13, 14 is supported on both sides in an angle lever 15, 16, which is pivotally attached to a lever 19 with a lever arm 17, 18, which in turn is arranged on the machine side frame. This makes it possible to either apply the metering roller 13 or the metering roller 14 to the scoop roller 9.

Zum Anstellen der beiden Dosierwalzen 13, 14 sind an den Winkelhebeln 15, 16 weitere Hebelarme 20, 21 vorgesehen, an denen einstellbare Anschläge 22 befestigt sind. Die Anschläge 22 lassen sich z.B. über Stellschrauben 23 verstellen und mittels Kontermuttern 24 absichern. Hierbei stürzen sich die Anschläge 22 auf Stellexzentern 25, 26 ab, die auf einer Achse 27 befestigt sind. Der Stellexzenter 25 ist gemäß dem gezeigten Ausführungsbeispiel der Walze 13 und der Stellexzenter 26 der Dosierwalze 14 zugeordnet. Die Achse 27 läßt sich über einen an ihr befestigten Dosierhebel 28 z.B. um 90 verschwenken, so daß abwechselnd die Dosierwalze 13 oder die Dosierwalze 14 an die Schöpfwalze 9 angestellt werden kann, wobei die Exzenter so ausgelegt sein können, daß eine gewisse übergangsphase gegeben ist, in der die eine Dosierwalze entlastet und die andere belastet wird. Auch läßt sich über den Dosierhebel 28 und die Stellexzenter 25, 26 der Anstelldruck der einzelnen Dosierwalzen 13, 14 an die Schöpfwalze 9 stufenlos einstellen.To set the two metering rollers 13, 14, further lever arms 20, 21 are provided on the angle levers 15, 16, on which adjustable stops 22 are fastened. The stops 22 can be adjusted, for example, by means of set screws 23 and secured by means of lock nuts 24. Here, the stops 22 fall on eccentric 25, 26, which are attached to an axis 27. The positioning eccentric 25 is assigned to the roller 13 according to the exemplary embodiment shown and the positioning eccentric 26 to the metering roller 14. The axis 27 can be pivoted, for example by 90, by means of a metering lever 28 attached to it, so that the metering roller 13 or the metering roller 14 can alternately be set against the scoop roller 9, the eccentrics being able to be designed such that a certain transition phase is given, in which one metering roller is relieved and the other is loaded. The setting pressure of the individual metering rollers 13, 14 on the scoop roller 9 can also be infinitely adjusted via the metering lever 28 and the adjusting eccentrics 25, 26.

In einer Ausführungsvariante läßt sich an der Achse 27 mit den Stellexzentern 25 und 26 ein nicht dargestellter Stellmotor anordnen, der beiniedriger Geschwindigkeit die Dosierwalze 14 mit weicher Gummimantelfläche und bei höherer Maschinengeschwindigkeit die Dosierwalze 13 mit harter Gummimantelfläche an die Schöpfwalze 9 anstellt. Die Steuerschaltung eines derartigen Stellmotors kann in zwei oder mehreren Geschwindigkeitsstufen der Druckmaschine von der Maschinensteuerung selbst abgeleitet werden.In an embodiment variant, a servomotor, not shown, can be arranged on the axis 27 with the adjusting eccentrics 25 and 26, which adjusts the metering roller 14 with a soft rubber jacket surface at low speed and the metering roller 13 with a hard rubber jacket surface to the scoop roller 9 at a higher machine speed. The control circuit of such a servomotor can be derived from the machine control itself in two or more speed levels of the printing press.

Mit einem derartig ausgebildeten Feuchtwerk können somit bei unterschiedlichen hydrodynamischen Kräften des Feuchtmittels entsprechend der jeweiligen Maschinengeschwindigkeit Dosierwalzen verwendet werden, die in der Lage sind, ohne überhöhten Anstelldruck eine exakte Dosierung der Feuchtmittelmenge durchzuführen.With a dampening unit designed in this way, metering rollers can be used with different hydrodynamic forces of the dampening solution according to the respective machine speed, which are able to carry out an exact metering of the amount of dampening solution without excessive contact pressure.

Claims (4)

1. Dampening unit for an offset rotary printing machine comprising a pan roller (9) partially dipping in dampening fluid (11), rollers (2, 7, 10) being provided downstream thereof and transferring said dampening fluid onto a printing plate, and elastic metering means cooperating with said pan roller (9), characterized in that two or more metering rollers (13, 14) having elastic outer cylindrical surfaces are provided as metering means, said elastic outer cylindrical surfaces featuring different hardnesses, said metering rollers (13, 14) being alternately engageable at said pan roller (9) such that, given an increasing printing speed, metering rollers featuring a higher degree of hardness are engaged at said pan roller.
2. Dampening unit according to Claim 1, characterized in that said metering rollers (13, 14) have rubber-made outer cylindrical surfaces the hardnesses of which vary between 30 and 60 degrees Shore.
3. Dampening unit according to Claims 1 and 2, characterized in that two metering rollers (13, 14) are provided, one (14) of said rollers having a soft rubber-made outer cylindrical surface the hardness of which varies between 30 and 40 degrees Shore, and the other one (13) having a hard rubber-made outer cylindrical surface the hardness of which varies between 50 and 60 degrees Shore, that each of said metering rollers (13, 14) is mounted, on both sides thereof, in a respective angle lever (15, 16), each of said angle levers being pivot-mounted on the machine side frame via bolts (19) and are supported on adjusting eccentrics (25, 26) via adjustable stops (22), said adjusting eccentrics being secured on a shaft (27) which can be pivoted by means of a metering lever (28).
4. Dampening unit according to Claims 1 and 2, characterized in that to said shaft (27) including said adjusting eccentrics (25, 26) there is assigned a servomotor which, given a low machine speed, engages said metering roller (14) having a soft outer cylindrical surface at said pan roller and which, given a high machine speed, engages said metering roller (13) having a hard outer cylindrical surface at said pan roller.
EP88113640A 1987-09-22 1988-08-23 Damping apparatus for a rotary printing machine Expired - Lifetime EP0308663B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3731768A DE3731768C1 (en) 1987-09-22 1987-09-22 Dampening unit for rotary offset printing machines
DE3731768 1987-09-22

Publications (3)

Publication Number Publication Date
EP0308663A2 EP0308663A2 (en) 1989-03-29
EP0308663A3 EP0308663A3 (en) 1989-05-17
EP0308663B1 true EP0308663B1 (en) 1991-08-21

Family

ID=6336527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88113640A Expired - Lifetime EP0308663B1 (en) 1987-09-22 1988-08-23 Damping apparatus for a rotary printing machine

Country Status (5)

Country Link
US (1) US4872406A (en)
EP (1) EP0308663B1 (en)
JP (1) JPH0667611B2 (en)
AU (1) AU2061688A (en)
DE (2) DE3731768C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001669B3 (en) * 2007-01-11 2007-12-06 Koenig & Bauer Aktiengesellschaft Offset printing machine`s e.g. rotary offset printing machine, damping unit, has ductor immersed in damping agent container and puller provided around gap, where puller is arranged at distance from sheathing surface of ductor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH069939U (en) * 1991-12-27 1994-02-08 リョービ株式会社 Continuous water supply device for offset printing machine
DE4230937A1 (en) * 1992-09-16 1994-03-17 Heidelberger Druckmasch Ag Device for engaging and disengaging the ink and dampening unit drive
DE19501146C1 (en) * 1995-01-17 1996-04-25 Roland Man Druckmasch Wetting mechanism for offset rotary printing machines
IES970423A2 (en) * 1997-06-05 1998-10-21 Richard Harrington Improvements relating to printing
DE19800475A1 (en) * 1998-01-09 1999-07-15 Koenig & Bauer Ag Method and device for influencing the color distribution
DE10008488A1 (en) * 1999-03-17 2000-09-21 Heidelberger Druckmasch Ag Damping unit of three rollers has pivot axle, gaps between, spring, support, swivel bearing and frame
US6101940A (en) * 1999-08-13 2000-08-15 Ward Holding Co., Inc. Printing machine
US6336403B1 (en) 2000-04-05 2002-01-08 Townsend Industries, Inc. Dampening system for printing machines
DE10152466B4 (en) * 2000-11-24 2015-12-17 Heidelberger Druckmaschinen Ag Humidity control taking into account several variables influencing the printing process
JP5821487B2 (en) * 2011-03-09 2015-11-24 株式会社リコー Pre-coating liquid coating apparatus for inkjet printer and image forming system

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US3038405A (en) * 1959-12-04 1962-06-12 Harris Intertype Corp Lithographic dampening device and method
US3343484A (en) * 1964-12-16 1967-09-26 Harold P Dahlgren Lithographic dampener with skewed metering roller
DE1561113A1 (en) * 1966-12-05 1970-02-12 Winkler Duennebier Kg Masch Dampening system for offset printing machines
DE2054678C3 (en) * 1970-11-06 1975-05-22 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Dampening unit for lithographic printing machines
DE2845932A1 (en) * 1978-10-21 1980-04-24 Heidelberger Druckmasch Ag COMBINED MOISTURE INK FOR OFFSET PRINTING

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007001669B3 (en) * 2007-01-11 2007-12-06 Koenig & Bauer Aktiengesellschaft Offset printing machine`s e.g. rotary offset printing machine, damping unit, has ductor immersed in damping agent container and puller provided around gap, where puller is arranged at distance from sheathing surface of ductor
DE102007001669C5 (en) * 2007-01-11 2009-08-27 Koenig & Bauer Aktiengesellschaft Dampening unit for offset printing machine

Also Published As

Publication number Publication date
DE3864361D1 (en) 1991-09-26
AU2061688A (en) 1989-03-23
JPH0667611B2 (en) 1994-08-31
JPH01110145A (en) 1989-04-26
DE3731768C1 (en) 1989-03-23
EP0308663A3 (en) 1989-05-17
EP0308663A2 (en) 1989-03-29
US4872406A (en) 1989-10-10

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