EP0477768A1 - Inking unit for intaglio printing machine - Google Patents

Inking unit for intaglio printing machine Download PDF

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Publication number
EP0477768A1
EP0477768A1 EP91115899A EP91115899A EP0477768A1 EP 0477768 A1 EP0477768 A1 EP 0477768A1 EP 91115899 A EP91115899 A EP 91115899A EP 91115899 A EP91115899 A EP 91115899A EP 0477768 A1 EP0477768 A1 EP 0477768A1
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EP
European Patent Office
Prior art keywords
printing machine
cylinder
forme cylinder
inking
inking unit
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
EP91115899A
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German (de)
French (fr)
Other versions
EP0477768B1 (en
Inventor
Peter Maier
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
Albert Frankenthal AG
Koenig and Bauer Albert 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 Albert Frankenthal AG, Koenig and Bauer Albert AG filed Critical Albert Frankenthal AG
Publication of EP0477768A1 publication Critical patent/EP0477768A1/en
Application granted granted Critical
Publication of EP0477768B1 publication Critical patent/EP0477768B1/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
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/061—Inking devices
    • B41F9/063—Using inking rollers

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

Abstract

In a gravure inker unit, an inking roller (3) is pressed onto the forme cylinder (4) via a lever system (5, 6) by means of a cylinder (14) which can be subjected to pressure medium.

Description

Die Erfindung betrifft ein Farbwerk mit einer Einfärbewalze für eine Tiefdruck-Rotationsdruckmaschine gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to an inking unit with a inking roller for a rotogravure printing press according to the preamble of claim 1.

Tiefdruck-Farbwerke mit Einfärbewalzen sind z. B. durch die DE-PS 2 48 463 bekannt geworden. Die Erfärbewalze transportiert hierbei Druckfarbe gegen den Tiefdruck-Formzylinder.Gravure printing inks with inking rollers are e.g. B. become known from DE-PS 2 48 463. The inking roller transports ink against the gravure cylinder.

Aus dem DE-GM 72 29 629 ist eine Einrichtung zum Verstellen der Höhenlage einer Farbwanne zum Formzylinder zu entnehmen.DE-GM 72 29 629 shows a device for adjusting the height of an ink tray for the forme cylinder.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung in einem Farbwerk mit einer Einfärbewalze einer Tiefdruckmaschine zu schaffen, mit der es möglich ist, den Anpreßdruck einer sog. Einfärbewalze an den Formzylinder und die vorgewählte Eintauchtiefe des Formzylinders in die Tiefdruckfarbe auch dann konstant zu halten, wenn nacheinander Formzylinder mit unterschiedlichem Durchmesser verwendet werden.The invention has for its object to provide a device in an inking unit with an inking roller of a gravure printing machine, with which it is possible to keep the contact pressure of a so-called inking roller on the forme cylinder and the preselected immersion depth of the forme cylinder in the intaglio printing ink constant, if form cylinders with different diameters are used in succession.

Diese Aufgabe wird durch den kennzeichnenden Teil des Anspruchs 1 gelöst.This object is solved by the characterizing part of claim 1.

Die mit der Erfindung erzielbaren Vorteile bestehen u. a. auch darin, daß ein konstanter Anpreßdruck (kp/m2) der Einfärbewalze an den Formzylinder auch bei einer großen Formatvariabilität des Formzylinders (z. B. kleinster Durchmesser zu größtem Durchmesser, wie 1:2) eingestellt und gehalten werden kann. Es kann im Rahmen der Konstruktionsvorgaben die Eintauchtiefe des Formzylinders verändert werden, ohne daß sich der Anpreßdruck der Einfärbewalze an den Formzylinder unbeeinflußbar verändert. Außerdem kann der Anpreßdruck (Liniendruck) feinfühlig verändert werden und auch während des Laufes der Maschine verändert werden, ohne daß die Eintauchtiefe des Formzylinders in die Druckfarbe verändert werden muß.The advantages that can be achieved with the invention include the fact that a constant contact pressure (kp / m 2 ) of the inking roller on the forme cylinder is set even with a large format variability of the forme cylinder (for example the smallest diameter to the largest diameter, such as 1: 2) and can be held. Within the framework of the design specifications, the immersion depth of the forme cylinder can be changed without the contact pressure of the inking roller on the forme cylinder changing unaffectedly. In addition, the contact pressure (line pressure) can be changed sensitively and can also be changed while the machine is running without having to change the immersion depth of the forme cylinder in the printing ink.

Ein Ausführungsbespiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen

  • Fig. 1 eine schematische Seitenansicht des erfindungsgemäßen Farbwerkes mit kleinstmöglichem Formzylinderdurchmesser,
  • Fig. 2 eine schematische Seitenansicht des erfindungsgemäßen Farbwerkes mit größtmöglichem Formzylinderdurchmesser.
An exemplary embodiment of the invention is shown in the drawing and is described in more detail below. Show it
  • 1 is a schematic side view of the inking unit according to the invention with the smallest possible forme cylinder diameter,
  • Fig. 2 is a schematic side view of the inking unit according to the invention with the largest possible form cylinder diameter.

In eine randvoll mit Tiefdruckfarbe 1 gefüllte Farbwanne 2 tauchen eine Einfärbewalze 3 und ein Formzylinder 4 ein. Der Formzylinder 4 taucht in vorwählbarer Tiefe z. B. wenige Zentimeter in die Tiefdruckfarbe 1 ein (Eintauchtiefe T). Die Einfärbewalze 3, die keinen eigenen Antrieb hat, taucht je nach Durchmesser des Formzylinder 4 z. B. mit 5/6 oder bis zu ihrem ganzen Durchmesser in die Tiefdruckfarbe 1 ein. Die Einfärbewalze 3 ist auf ihrer Mantelfläche mit einem Textilbezug überzogen und steht seitlich beabstandet z. B. rechts (Abstand 12) von einer senkrechten Ebene durch die Rotationsachse 11 des Formzylinders 4 unten in Reibkontakt mit dem Mantel des Formzylinders 4. Die Einfärbewalze 3 ist in jeweils einem ersten Ende 10 eines einarmigen Hebelarmes 5 und einem ersten Ende 7 eines abgewinkelten zweiarmigen Hebelarmes 6, der über die linke Wand der Farbwanne 2 hinausragen, drehbar gelagert. Über einen Zapfen 9 und Gabelkopf ist eine einseitige Kolbenstange 13 eines einfachwirkenden Zylinders 14 mit einem zweiten Ende 8 des zweiarmigen Hebelarmes 6 gelenkig verbunden. Der Zylinder 14 kann über einen Anschluß 15 auf der Stangenseite mittels eines pneumatischen oder hydraulischen Mediums mit Druck beaufschlagt werden. Der Druck kann über nicht dargestellte Druckquellen (Kompressor, Pumpe) und Handventile bzw. Druckminderer eingestellt werden. Ein Gegenlager des Zylinders 14 ist mit einem Tragstück 16 gelenkig verbunden. Das Tragstück 16 ist außen unten am Bodenblech 17 angeschweißt und steht links über den Umriß der Farbwanne 2 hinaus.A inking roller 3 and a forme cylinder 4 are immersed in an ink tank 2 filled to the brim with gravure ink 1. The forme cylinder 4 dips to a pre-selectable depth. B. a few centimeters in gravure ink 1 (immersion depth T). The inking roller 3, which does not have its own drive, dips depending on the diameter of the forme cylinder 4 z. B. with 5/6 or up to their entire diameter in gravure 1. The inking roller 3 is covered on its outer surface with a textile cover and is laterally spaced z. B. right (distance 12) from a vertical plane through the axis of rotation 11 of the forme cylinder 4 below in frictional contact with the jacket of the forme cylinder 4. The inking roller 3 is in each case a first end 10 of a one-armed lever arm 5 and a first end 7 of an angled two-armed Lever arm 6, which protrude beyond the left wall of the paint pan 2, rotatably mounted. A one-sided piston rod 13 of a single-acting cylinder 14 is articulated to a second end 8 of the two-armed lever arm 6 via a pin 9 and fork head. The cylinder 14 can be pressurized via a connection 15 on the rod side by means of a pneumatic or hydraulic medium. The pressure can be set via pressure sources (compressor, pump) and manual valves or pressure reducers not shown. A counter bearing of the cylinder 14 is articulated to a support piece 16. The support piece 16 is welded to the bottom of the bottom plate 17 and is on the left beyond the outline of the paint pan 2.

In der Knickstelle 18 der doppelarmigen Hebelarme 6 und am zweiten Ende 20 des einarmigen Hebels 5 sind Bohrungen vorgesehen, durch die eine Spindel 19 führt und mit den Hebelarmen 5, 6 verschweißt ist. Die Enden der Spindel 19 sind in Bohrungen von zwei beabstandeten Stegen 21 (links und rechts) drehbar gelagert. Die Stege 21 (links, rechts) sind innen in der Farbwanne 2 in der Nähe der beiden seitlichen Wände 22 mit dem Bodenblech 17 stoffschlüssig verbunden.Bores are provided in the kink 18 of the double-armed lever arms 6 and at the second end 20 of the one-armed lever 5, through which a spindle 19 passes and is welded to the lever arms 5, 6. The ends of the spindle 19 are rotatably supported in bores by two spaced webs 21 (left and right). The webs 21 (left, right) are integrally connected to the floor panel 17 inside the paint trough 2 near the two side walls 22.

Das Bodenblech 17 ist außen mittig mit einem Ende einer Zahnstange 23 formschlüssig verbunden. Die Zahnstange 23 ist in einer gestellfesten, nicht dargestellten Führung verschiebbar, jedoch nicht verdrehbar gelagert. Ein Zahnritzel 24 steht mit der Verzahnung der Zahnstange 23 in Eingriff und ist über eine Welle 25 mit einem Untersetzungsgetriebe mit Schrittmotor 26 und einem Zähler 27 verbunden. Der Zähler 27 dient als Anzeige für die aktuelle Höhenstellung der Farbwanne 2 und ist als Maß für die momentane Eintauchtiefe des Formzylinders 4 zu verwenden. Je nach Drehrichtung des Schrittmotors 26 mit dem angeflanschten Untersetzungsgetriebe kann die Farbwanne 2 gehoben oder gesenkt werden und somit die Eintauchtiefe des Formzylinders 4 in die Druckfarbe 1 unabhängig vom monentanen Durchmesser des Formzylinders 4 festgelegt werden.The bottom plate 17 is positively connected externally in the middle to one end of a toothed rack 23. The rack 23 is displaceable in a guide that is fixed to the frame, not shown, but is not rotatable. A toothed pinion 24 is in engagement with the toothing of the toothed rack 23 and is connected via a shaft 25 to a reduction gear with a stepping motor 26 and a counter 27. The counter 27 serves as an indication of the current height of the ink tray 2 and is to be used as a measure of the current immersion depth of the forme cylinder 4. Depending on the direction of rotation of the stepper motor 26 with the flange-mounted reduction gear, the ink tray 2 can be raised or lowered and thus the immersion depth of the forme cylinder 4 in the printing ink 1 can be determined independently of the instantaneous diameter of the forme cylinder 4.

Wie schon oben ausgeführt, wird über den Anschluß 15 dem Zylinder 14 ein Druckmedium mit veränderbarem Druck zugeführt. Hierdurch ist es möglich den Anpreßdruck der Einfärbewalze 3 wahlweise je nach Stellung des Druckeinstellgerätes z. B. feinfühliger Druckminderer, zu verändern.As already explained above, a pressure medium with variable pressure is supplied to the cylinder 14 via the connection 15. This makes it possible to selectively apply the contact pressure of the inking roller 3 depending on the position of the pressure setting device z. B. sensitive pressure reducer to change.

TeilelisteParts list

  • 1 Tiefdruckfarbe1 gravure ink
  • 2 Farbwanne2 paint tray
  • 3 Einfärbewalze3 inking rollers
  • 4 Formzylinder4 forme cylinders
  • 5 Hebelarm, einarmiger5 lever arm, one arm
  • 6 Hebelarm, zweiarmiger6 lever arm, two-armed
  • 7 Ende, erstes7 end, first
  • 8 Ende, zweites8 end, second
  • 9 Zapfen9 cones
  • 10 Ende, erstes10 end, first
  • 11 Rotationsachse11 axis of rotation
  • 12 Abstand12 distance
  • 13 Kolbenstange13 piston rod
  • 14 Zylinder14 cylinders
  • 15 Anschluß15 connection
  • 16 Tragstück16 support piece
  • 17 Bodenblech17 floor panel
  • 18 Knickstelle18 kink
  • 19 Spindel19 spindle
  • 20 Ende, zweites20 end, second
  • 21 Steg21 bridge
  • 22 Wand22 wall
  • 23 Zahnstange23 rack
  • 24 Zahnritzel24 sprockets
  • 25 Welle25 wave
  • 26 Getriebe mit Schrittmotor26 gearbox with stepper motor
  • 27 Zähler27 counters
  • T TiefeT depth

Claims (3)

1. Farbwerk für eine Tiefdruck-Rotationsdruckmaschine mit einer höhenverschiebbaren Farbwanne, mit in sie eintauchenden Formzylinder und Einfärbewalze, wobei die Einfärbewalze mit dem Formzylindermantel in Rollkontakt steht, dadurch gekennzeichnet, daß eine Einfärbewalze (3) in Enden (10, 7) von zwei Hebelarmen (5, 6) drehbar gelagert ist, daß mindestens ein Hebelarm (6) als zweiarmiger Hebel ausgeführt ist, daß zwischen einem zweiten Ende (8) des zweiarmigen Hebels (6) und einem farbwannenfesten Tragstück (16) eine und mit ihnen in Wirkverbindung stehender mit veränderbaren Druck beaufschlagbarer Arbeitszylinder (13, 14, 15) vorgesehen ist, daß die Lagerung der Hebel (5, 6) in farbwannenfesten Mitteln (21, 22) erfolgt.1. Inking unit for a rotogravure printing machine with a height-adjustable ink tray, with immersed forme cylinder and inking roller, the inking roller is in rolling contact with the forme cylinder jacket, characterized in that an inking roller (3) in ends (10, 7) of two lever arms (5, 6) is rotatably mounted, that at least one lever arm (6) is designed as a two-armed lever, that between a second end (8) of the two-armed lever (6) and an ink tray-fixed support piece (16) and in operative connection with them Working cylinder (13, 14, 15) which can be acted upon by variable pressure is provided such that the levers (5, 6) are mounted in means (21, 22) fixed to the ink tray. 2. Farbwerk für eine Tiefdruck-Rotationsdruckmaschine nach Anspruch 1, dadurch gekennzeichnet, daß zur Druckbeaufschlagung des Zylinders (14) ein gasförmiges Medium vorgesehen ist.2. Inking unit for a rotogravure printing machine according to claim 1, characterized in that a gaseous medium is provided for pressurizing the cylinder (14). 3. Farbwerk für eine Tiefdruck-Rotationsdruckmaschine nach Anspruch 1, dadurch gekennzeichnet, daß ein flüssiges Medium vorgesehen ist.3. Inking unit for a rotogravure printing machine according to claim 1, characterized in that a liquid medium is provided.
EP91115899A 1990-09-26 1991-09-19 Inking unit for intaglio printing machine Expired - Lifetime EP0477768B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4030377A DE4030377A1 (en) 1990-09-26 1990-09-26 INK FOR A PRINTING MACHINE
DE4030377 1990-09-26

Publications (2)

Publication Number Publication Date
EP0477768A1 true EP0477768A1 (en) 1992-04-01
EP0477768B1 EP0477768B1 (en) 1995-04-26

Family

ID=6414976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115899A Expired - Lifetime EP0477768B1 (en) 1990-09-26 1991-09-19 Inking unit for intaglio printing machine

Country Status (6)

Country Link
US (1) US5103723A (en)
EP (1) EP0477768B1 (en)
JP (1) JPH07110540B2 (en)
DE (2) DE4030377A1 (en)
ES (1) ES2073085T3 (en)
FI (1) FI102062B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598268A1 (en) * 1992-11-11 1994-05-25 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Installation for compensating deflection of an intaglio printing-form cylinder
CN104029465A (en) * 2014-05-27 2014-09-10 渭南三立印刷机械有限公司 Ink supply compensation device on gravure machine

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4340128C2 (en) * 1993-11-25 1996-07-25 Koenig & Bauer Albert Ag Rotogravure inking unit
DE4340482C2 (en) * 1993-11-27 1995-10-12 Frankenthal Ag Albert Rotogravure inking unit
DE19617746B4 (en) * 1996-05-03 2005-05-25 Heidelberger Druckmaschinen Ag Inking unit for a printing press
US6209454B1 (en) * 1997-05-05 2001-04-03 Koenig & Bauer Aktiengesellschaft Multicolor rotogravure rotary press with first and second side printing towers
JP2001030611A (en) * 1999-07-27 2001-02-06 Nihon Tokkyo Kanri Co Ltd Gravure printing method using aqueous gravure ink, plate cylinder used for application of the method and printed matter printed by the method
US6910341B2 (en) * 2003-09-26 2005-06-28 Thermo King Corporation Temperature control apparatus and method of operating the same
DE102007003728B4 (en) 2007-01-25 2009-10-29 Officine Meccaniche Giovanni Cerutti S.P.A. Inking unit for coloring a forme cylinder of a printing unit of a gravure printing machine
DE102011009287B4 (en) 2011-01-24 2015-07-02 Ibg Monforts Walzentechnik Gmbh & Co.Kg inking
CN112423986B (en) 2018-06-12 2023-06-09 鲍勃斯脱意大利有限公司 Ink box of rotary gravure press
EP3807091B1 (en) * 2018-06-12 2023-07-12 Bobst Italia S.P.A. Inking system for a rotogravure press with optimal configurations for several types of ink and method for configuring the inking system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1843048A (en) * 1930-05-16 1932-01-26 Linotype Machinery Ltd Mechanism for inking the printing surfaces of rotary intaglio printing machines
DE674972C (en) * 1936-12-15 1939-04-26 Albert Schnellpressen Inking unit for rotogravure printing machines
DE2321377B1 (en) * 1973-04-27 1974-04-25 Fischer & Krecke Kg, 4800 Bielefeld Inking unit

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DE248463C (en) *
GB259684A (en) * 1925-07-17 1926-10-18 Walter Everett Molins Improvements in and relating to printing machines
US2974586A (en) * 1960-04-19 1961-03-14 Hunt Forest Wethero Doctor blade and doctor blade shear for textile printing machine
DE1282026B (en) * 1966-08-08 1968-11-07 Dornbusch & Co Device on a rotary printing machine, in particular a multicolor gravure printing machine, for positioning the forme cylinder against the impression cylinder
DE1611286A1 (en) * 1967-08-31 1970-04-02 Albert Schnellpressen Inking device for the forme cylinder of gravure printing machines
DE7229629U (en) * 1972-08-10 1972-11-16 Frankenthal A Ag Device for putting the ink pans on and off in rotogravure printing machines
US4354449A (en) * 1978-07-03 1982-10-19 The Black Clawson Company Two sided coater
JPS56167455A (en) * 1980-05-30 1981-12-23 Toppan Printing Co Ltd Prevention method for adhering of foam to gravure cylinder
DD229961A1 (en) * 1984-12-03 1985-11-20 Polygraph Leipzig paintbox
JPH0440924Y2 (en) * 1985-01-25 1992-09-25
DD260893A1 (en) * 1987-06-22 1988-10-12 Polygraph Leipzig ADJUSTMENT AND STOPPING DEVICE FOR THE RUBBER CYLINDER OF A FOUR CYLINDER PRESSURE PUSH FOR A ROLL ROTATION OFFSET PRINTING MACHINE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1843048A (en) * 1930-05-16 1932-01-26 Linotype Machinery Ltd Mechanism for inking the printing surfaces of rotary intaglio printing machines
DE674972C (en) * 1936-12-15 1939-04-26 Albert Schnellpressen Inking unit for rotogravure printing machines
DE2321377B1 (en) * 1973-04-27 1974-04-25 Fischer & Krecke Kg, 4800 Bielefeld Inking unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598268A1 (en) * 1992-11-11 1994-05-25 KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT Installation for compensating deflection of an intaglio printing-form cylinder
US5454311A (en) * 1992-11-11 1995-10-03 Albert-Frankenthal Aktiengesellschaft Apparatus for compensating for cylinder sag
CN104029465A (en) * 2014-05-27 2014-09-10 渭南三立印刷机械有限公司 Ink supply compensation device on gravure machine

Also Published As

Publication number Publication date
FI914509A0 (en) 1991-09-25
JPH07110540B2 (en) 1995-11-29
DE59105306D1 (en) 1995-06-01
DE4030377C2 (en) 1993-08-05
FI914509A (en) 1992-03-27
JPH04246540A (en) 1992-09-02
ES2073085T3 (en) 1995-08-01
FI102062B1 (en) 1998-10-15
DE4030377A1 (en) 1992-04-16
EP0477768B1 (en) 1995-04-26
US5103723A (en) 1992-04-14
FI102062B (en) 1998-10-15

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