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EP0359955B1 - Inking device with an ink rail device - Google Patents

Inking device with an ink rail device Download PDF

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Publication number
EP0359955B1
EP0359955B1 EP89114230A EP89114230A EP0359955B1 EP 0359955 B1 EP0359955 B1 EP 0359955B1 EP 89114230 A EP89114230 A EP 89114230A EP 89114230 A EP89114230 A EP 89114230A EP 0359955 B1 EP0359955 B1 EP 0359955B1
Authority
EP
European Patent Office
Prior art keywords
ink
doctor blade
chambered doctor
air supply
supply line
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
EP89114230A
Other languages
German (de)
French (fr)
Other versions
EP0359955A2 (en
EP0359955A3 (en
Inventor
Thomas John
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0359955A2 publication Critical patent/EP0359955A2/en
Publication of EP0359955A3 publication Critical patent/EP0359955A3/en
Application granted granted Critical
Publication of EP0359955B1 publication Critical patent/EP0359955B1/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
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/027—Ink rail devices for inking ink rollers

Definitions

  • the invention relates to an inking unit for a printing machine with a chambered doctor blade, for ink delivery to an anilox roller.
  • EP-A 0 071 180 shows such an inking unit.
  • the ink chamber of the chamber doctor blade can be supplied with ink via a tube in front of a central ink supply device.
  • the invention has for its object to design an inking unit of this type so that a print requiring only a very small amount of ink can be carried out with little color loss.
  • the chambered doctor blade 1 comprises a chambered doctor blade 1 with a carrier 2 and an ink supply device 3.
  • the chambered doctor blade 1 is connected to the ink supply device 3 via a flexible ink line 4.
  • One end of the paint line is by means of a coupling 5, for example a bayonet coupling or a coupling with a union nut, releasably attached to the carrier 2 of the doctor blade 1.
  • the other end of the paint line 4 can, as in the exemplary embodiment, be permanently connected to the paint feed device or can also be detachably connected to it via a coupling.
  • the chambered doctor blade 1 interacts with an anilox roller 6.
  • a holder 7 is provided for connecting the chamber doctor blade 1.
  • the holder 7 is seated on a crossmember 8, which is rotatably supported at both ends on the side walls of the printing press, and comprises two holders 9 placed on the crossmember at a distance from one another, each of which has two holder approaches 10.
  • Two bolts 11, which are firmly attached to the carrier 2 can be suspended in the holder lugs 10.
  • an eccentric 13 which can be rotated by means of a hand lever 12 is also mounted on the crossmember 8 and acts on the upper side of the support 2 and can thereby hold the bolts 11 in firm contact with the holder lugs 10.
  • each anilox roller 6 which includes a support plate 14 and a further cross member 15. Both the support plate 14 and the cross member 15 are connected at both ends to the side walls of the printing press.
  • the support plate 14 serves to hold the ink supply device 3, while a main shaft 16 is mounted on the cross member 15, which drives an output shaft 19 via bevel gears 17, 18.
  • the output shaft 19 is connected via a releasable clutch 20, for example a claw clutch, to a drive shaft 21 for an ink pump 22 of the ink supply device.
  • the ink feed device 3 also has an ink tray 23 in which the ink to be printed is stored.
  • This arrangement is suitable and intended for printing a larger amount of ink.
  • an ink cartridge 24 can be coupled to the chamber doctor blade 1 by means of the releasable coupling 5, as shown in FIG. 2.
  • the ink cartridge 24 has a riser tube 25 which opens into the cartridge-side coupling half of the coupling 5 and can be supplied with the paint through a tube 26 to the chamber doctor blade 1.
  • the color cartridge 24 opens another nozzle 27 on which one half of a coupling 28 is seated.
  • the other half of the coupling 28 forms the end of a compressed air supply line 29, which is also at least partially flexible.
  • the compressed air supply line 29 there is also a throttle valve 30, the throttling effect of which can be adjusted by means of an adjusting wheel 31.
  • the color cartridge 24 is closed at the top by a cover 32 which can be unscrewed into the color cartridge 24 for refilling paint.
  • a web 33 is provided, which extends from the upper side 34, extends over the entire width of the chambered doctor blade 1 and leaves a narrow passage slot open above the lower side 35.
  • an ink collecting trough 36 is provided, which can be placed on the cross member 15 by means of a nozzle 37 when the ink supply device 3 is removed, or is attached directly to the chamber doctor blade 1 and carrier 2.
  • the coupling 5 is released and the ink supply device 3 is removed from the support plate 14. Then the ink drip pan 36 is placed on the cross member 15 and the ink cartridge 24 is connected to the chamber doctor blade 1 by means of the coupling 5. The ink cartridge 24 is then connected to the compressed air supply line 29 via the coupling 28. If the ink cartridge 24 is now pressurized with compressed air, it presses the ink via the riser tube 25 and the tube 26 into the chamber doctor blade, via which the anilox roller 6 is inked. From the doctor blade dripping paint is taken up by the ink collecting tray 36.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung betrifft ein Farbwerk für eine Druckmaschine mit einem Kammerrakel, zur Farbabgabe an eine Rasterwalze.The invention relates to an inking unit for a printing machine with a chambered doctor blade, for ink delivery to an anilox roller.

Die EP-A 0 071 180 zeigt ein solches Farbwerk. Der Farbkammer des Kammerrakels ist mittels eines Schlauches über ein Rohr vor einer zentralen Farbzuführvorrichtung Farbe zuführbar.EP-A 0 071 180 shows such an inking unit. The ink chamber of the chamber doctor blade can be supplied with ink via a tube in front of a central ink supply device.

Der Erfindung liegt die Aufgabe zugrunde, ein Farbwerk dieser Gattung so auszubilden, daß ein nur eine sehr kleine Farbmenge benötigender Druck mit geringen Farbverlusten durchgeführt werden kann.The invention has for its object to design an inking unit of this type so that a print requiring only a very small amount of ink can be carried out with little color loss.

Erfindungsgemäß wird diese Aufgabe durch Anwendung der Merkmale des Kennzeichens des Anspruchs 1 gelöst.According to the invention, this object is achieved by applying the features of the characterizing part of claim 1.

Weitere Merkmale und Vorteile ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung zweier Ausführungsbeispiele anhand der Zeichnung. Auf dieser zeigt

Fig. 1
eine schematische Seitenansicht eines Rakelfarbwerkes in der normalen Betriebsposition,
Fig. 2
das Farbwerk gemäß Fig. 1 nach Umrüstung für einen nur wenig Farbe benötigenden Druck,
Fig. 3
eine Einzelheit einer Variante zur Anordnung gemäß Fig. 2 in einer Ansicht.
Further features and advantages result from the subclaims and the following description of two exemplary embodiments with reference to the drawing. On this shows
Fig. 1
a schematic side view of a doctor blade inking unit in the normal operating position,
Fig. 2
1 after retrofitting for a print requiring only little ink,
Fig. 3
a detail of a variant of the arrangement of FIG. 2 in a view.

Das Rakelfarbwerk gemäß Fig. 1 umfaßt ein Kammerrakel 1 mit einem Träger 2 und einer Farbzuführvorrichtung 3. Das Kammerrakel 1 ist mit der Farbzuführvorrichtung 3 über eine flexible Farbleitung 4 verbunden. Das eine Ende der Farbleitung ist mittels einer Kupplung 5, beispielsweise einer Bajonett-Kupplung oder einer Kupplung mit Überwurfmutter, am Träger 2 des Kammerrakels 1 lösbar befestigt. Das andere Ende der Farbleitung 4 kann wie beim Ausführungsbeispiel fest an der Farbzuführvorrichtung angeschlossen oder ebenfalls über eine Kupplung mit dieser lösbar verbunden sein. Das Kammerrakel 1 wirkt mit einer Rasterwalze 6 zusammen.1 comprises a chambered doctor blade 1 with a carrier 2 and an ink supply device 3. The chambered doctor blade 1 is connected to the ink supply device 3 via a flexible ink line 4. One end of the paint line is by means of a coupling 5, for example a bayonet coupling or a coupling with a union nut, releasably attached to the carrier 2 of the doctor blade 1. The other end of the paint line 4 can, as in the exemplary embodiment, be permanently connected to the paint feed device or can also be detachably connected to it via a coupling. The chambered doctor blade 1 interacts with an anilox roller 6.

Vor der Rasterwalze 6 ist zum Anschluß des Kammerrakels 1 eine Halterung 7 vorgesehen. Die Halterung 7 sitzt auf einer Traverse 8, die an beiden Enden an Seitenwänden der Druckmaschine drehbar gelagert ist, und umfaßt zwei auf die Traverse im Abstand voneinander aufgesetzte Halter 9, die je zwei Halteransätze 10 aufweisen. In die Halteransätze 10 können zwei Bolzen 11, die fest am Träger 2 befestigt sind, eingehängt werden. An der Traverse 8 ist weiterhin neben diesem Halter 9 je ein mittels eines Handhebels 12 drehbarer Exzenter 13 gelagert, der auf die Oberseite des Trägers 2 einwirkt und dadurch die Bolzen 11 in fester Anlage an den Halteransätzen 10 halten kann.In front of the anilox roller 6, a holder 7 is provided for connecting the chamber doctor blade 1. The holder 7 is seated on a crossmember 8, which is rotatably supported at both ends on the side walls of the printing press, and comprises two holders 9 placed on the crossmember at a distance from one another, each of which has two holder approaches 10. Two bolts 11, which are firmly attached to the carrier 2, can be suspended in the holder lugs 10. In addition to this holder 9, an eccentric 13 which can be rotated by means of a hand lever 12 is also mounted on the crossmember 8 and acts on the upper side of the support 2 and can thereby hold the bolts 11 in firm contact with the holder lugs 10.

Unterhalb der Unterkante jeder Rasterwalze 6 ist eine weitere Halterung vorgesehen, die eine Tragplatte 14 und eine weitere Traverse 15 umfaßt. Sowohl die Tragplatte 14 als auch die Traverse 15 sind an beiden Enden an den Seitenwänden der Druckmaschine angeschlossen. Die Tragplatte 14 dient zur Halterung der Farbzuführvorrichtung 3, während an der Traverse 15 eine Hauptwelle 16 gelagert ist, die über Kegelzahnräder 17, 18 eine Abtriebswelle 19 antreibt. Die Abtriebswelle 19 steht über eine lösbare Kupplung 20, beispielsweise eine Klauenkupplung, mit einer Antriebswelle 21 für eine Farbpumpe 22 der Farbzuführvorrichtung in Verbindung. Die Farbzuführvorrichtung 3 weist weiterhin eine Farbwanne 23 auf, in der die zu druckende Farbe bevorratet ist.A further holder is provided below the lower edge of each anilox roller 6, which includes a support plate 14 and a further cross member 15. Both the support plate 14 and the cross member 15 are connected at both ends to the side walls of the printing press. The support plate 14 serves to hold the ink supply device 3, while a main shaft 16 is mounted on the cross member 15, which drives an output shaft 19 via bevel gears 17, 18. The output shaft 19 is connected via a releasable clutch 20, for example a claw clutch, to a drive shaft 21 for an ink pump 22 of the ink supply device. The ink feed device 3 also has an ink tray 23 in which the ink to be printed is stored.

Diese Anordnung ist zum Verdrucken einer größeren Farbmenge geeignet und vorgesehen.This arrangement is suitable and intended for printing a larger amount of ink.

Soll eine geringere Farbmenge verdruckt werden, kann mittels der lösbaren Kupplung 5 eine Farbpatrone 24 an das Kammerrakel 1 angekuppelt werden, wie Fig. 2 zeigt. Die Farbpatrone 24 weist ein Steigrohr 25 auf, das in die patronenseitige Kupplungshälfte der Kupplung 5 mündet und mit dem Farbe durch ein Rohr 26 dem Kammerrakel 1 zugeführt werden kann. In die Farbpatrone 24 mündet ein weiterer Stutzen 27, an dem die eine Hälfte einer Kupplung 28 sitzt. Die andere Hälfte der Kupplung 28 bildet das Ende einer Druckluftzuleitung 29, die zumindest partiell ebenfalls flexibel ausgebildet ist. In der Druckluftzuleitung 29 sitzt weiterhin ein Drosselventil 30, dessen Drosselwirkung mittels eines Stellrädchens 31 einstellbar ist. Die Farbpatrone 24 ist oben durch einen Deckel 32 abgeschlossen, der zum Nachfüllen von Farbe in die Farbpatrone 24 abschraubbar sein kann.If a smaller amount of ink is to be printed, an ink cartridge 24 can be coupled to the chamber doctor blade 1 by means of the releasable coupling 5, as shown in FIG. 2. The ink cartridge 24 has a riser tube 25 which opens into the cartridge-side coupling half of the coupling 5 and can be supplied with the paint through a tube 26 to the chamber doctor blade 1. In the color cartridge 24 opens another nozzle 27 on which one half of a coupling 28 is seated. The other half of the coupling 28 forms the end of a compressed air supply line 29, which is also at least partially flexible. In the compressed air supply line 29 there is also a throttle valve 30, the throttling effect of which can be adjusted by means of an adjusting wheel 31. The color cartridge 24 is closed at the top by a cover 32 which can be unscrewed into the color cartridge 24 for refilling paint.

Innerhalb des Kammerrakels 1 ist ein Steg 33 vorgesehen, der von der Oberseite 34 ausgeht, sich über die ganze Breite des Kammmerrakels 1 erstreckt und über der Unterseite 35 einen schmalen Durchtrittsschlitz offen läßt.Within the chambered doctor blade 1, a web 33 is provided, which extends from the upper side 34, extends over the entire width of the chambered doctor blade 1 and leaves a narrow passage slot open above the lower side 35.

Weiterhin ist eine Farbauffangwanne 36 vorgesehen, die bei entfernter Farbzuführvorrichtung 3 mittels Stutzen 37 auf die Traverse 15 aufsetzbar ist, oder direkt am Kammerrakel 1 und Träger 2 befestigt wird.Furthermore, an ink collecting trough 36 is provided, which can be placed on the cross member 15 by means of a nozzle 37 when the ink supply device 3 is removed, or is attached directly to the chamber doctor blade 1 and carrier 2.

Zur Durchführung eines nur eine geringe Farbmenge benötigenden Druckes wird die Kupplung 5 gelöst und die Farbzuführvorrichtung 3 von der Tragplatte 14 abgenommen. Anschließend wird die Farbauffangwanne 36 auf die Traverse 15 aufgesetzt und die Farbpatrone 24 mittels der Kupplung 5 an das Kammerrakel 1 angeschlossen. Die Farbpatrone 24 wird dann über die Kupplung 28 mit der Druckluftzuleitung 29 verbunden. Wird nunmehr die Farbpatrone 24 mit Druckluft beaufschlagt, so drückt diese die Farbe über das Steigrohr 25 und das Rohr 26 in die Kammerrakel, über die die Rasterwalze 6 eingefärbt wird. Vom Kammerrakel abtropfende Farbe wird von der Farbauffangwanne 36 aufgenommen. Sinkt der Farbspiegel in der Farbpatrone 24 unter die Unterkante des Steigrohres 25, bläst Druckluft direkt durch das Steigrohr 25 und das Rohr 26 in die Kammerrakel. Hier stellt der Steg 33 sicher, daß ein Teil der in der Kammerrakel befindlichen Farbe noch der Rasterwalze 6 zugeführt wird, bis der Farbspiegel im Raum zwischen dem Rohr 26 und dem Steg 33 die Unterkante des Steges 33 erreicht hat. Es ist also eine sehr weitgehende Ausnutzung der geringen, in der Farbpatrone 24 enthaltenen Farbmenge möglich.To carry out a print requiring only a small amount of ink, the coupling 5 is released and the ink supply device 3 is removed from the support plate 14. Then the ink drip pan 36 is placed on the cross member 15 and the ink cartridge 24 is connected to the chamber doctor blade 1 by means of the coupling 5. The ink cartridge 24 is then connected to the compressed air supply line 29 via the coupling 28. If the ink cartridge 24 is now pressurized with compressed air, it presses the ink via the riser tube 25 and the tube 26 into the chamber doctor blade, via which the anilox roller 6 is inked. From the doctor blade dripping paint is taken up by the ink collecting tray 36. If the ink level in the ink cartridge 24 drops below the lower edge of the ascending pipe 25, compressed air blows directly through the ascending pipe 25 and the pipe 26 into the doctor blade. Here, the web 33 ensures that part of the ink in the chamber doctor blade is still fed to the anilox roller 6 until the ink level in the space between the tube 26 and the web 33 has reached the lower edge of the web 33. A very extensive utilization of the small amount of color contained in the color cartridge 24 is therefore possible.

Anstelle eines einstellbaren Drosselventiles 30 kann es auch ausreichen, in den patronenseitigen Teil der Kupplung 5 eine Dichtscheibe 38, vgl. Fig. 3, einzulegen, die eine der erforderlichen Drosselwirkung angepaßte Durchtrittsöffnung 39 aufweist.Instead of an adjustable throttle valve 30, it may also be sufficient to insert a sealing disk 38 into the cartridge-side part of the coupling 5, cf. 3, which has a passage opening 39 adapted to the required throttling effect.

Claims (4)

  1. Inking device for a printing machine with a chambered doctor blade for ink delivery to a screen roller, characterized in that ink can be supplied to the chambered doctor blade (1) through an ink conduit, in which releasable coupling means (5) are provided for the selective connection of an ink conduit (4) of an ink supply device (3) or an ink cartridge (24) provided with appropriate coupling means, the ink cartridge (24) has additional coupling means (28) for the connection of a compressed-air supply line (29) and in that in the chambered doctor blade (1) a bar (33) is provided which issues from the upper side (34), extends over the width of the chambered doctor blade (1) and leaves free a narrow slot over the underside (35).
  2. Inking device according to claim 1, characterized in that the compressed-air supply line (29) opens above the ink level into the ink cartridge (24), and a feedpipe (25) leading to the chambered doctor blade (1) is provided.
  3. Inking device according to one of the preceding claims, characterized in that an adjustable flow-control valve (30) is arranged in the compressed-air supply line (29).
  4. Inking device according to one of the preceding claims, characterized in that the coupling means (28) for the compressed-air supply line (29) include a replaceable sealing disc (38) with an opening (39) acting as a throttle.
EP89114230A 1988-09-22 1989-08-02 Inking device with an ink rail device Expired - Lifetime EP0359955B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3832148 1988-09-22
DE3832148A DE3832148A1 (en) 1988-09-22 1988-09-22 INK WITH A CHAMBER Squeegee

Publications (3)

Publication Number Publication Date
EP0359955A2 EP0359955A2 (en) 1990-03-28
EP0359955A3 EP0359955A3 (en) 1990-09-19
EP0359955B1 true EP0359955B1 (en) 1994-06-01

Family

ID=6363455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89114230A Expired - Lifetime EP0359955B1 (en) 1988-09-22 1989-08-02 Inking device with an ink rail device

Country Status (3)

Country Link
EP (1) EP0359955B1 (en)
JP (1) JP2820452B2 (en)
DE (3) DE3832148A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012618A1 (en) * 1990-04-20 1991-10-24 Roland Man Druckmasch RAKELFARBWERK
DE4012825A1 (en) * 1990-04-23 1991-10-24 Koenig & Bauer Ag CHAMBER Squeegee
DE4117389C2 (en) * 1991-05-28 2002-06-27 Koenig & Bauer Ag Ink feed device on a printing press
US5664496A (en) * 1994-12-15 1997-09-09 Markem Corporation Doctoring ink cup
DE19513888A1 (en) * 1995-04-19 1996-10-24 Focke & Co Method and device for applying markings, in particular color markings, to film webs
DE19717727B4 (en) * 1997-04-26 2005-06-23 Man Roland Druckmaschinen Ag Inking unit for a rotary printing machine

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1137856A (en) * 1913-07-29 1915-05-04 Hoe & Co R Ink-fountain for printing-machines.
US2971458A (en) * 1957-12-30 1961-02-14 Interchem Corp Process of coloring textile materials
DE1100041B (en) * 1959-06-20 1961-02-23 Koenig & Bauer Schnellpressfab Pump ink box on rotary printing machines
US3065886A (en) * 1960-10-24 1962-11-27 Jr Harvey D Smalley Ink dispensing apparatus
DE1229108B (en) * 1961-01-13 1966-11-24 Miehle Goss Dexter Inc Device for supplying printing ink to the ink locations of a printing machine
US3288061A (en) * 1963-12-31 1966-11-29 Miehle Goss Dexter Inc Press inking arrangement
DE2526466A1 (en) * 1974-06-17 1976-01-02 American Bank Note Co PAINT APPLICATION DEVICE FOR A GRAVURE PRINTING MACHINE
US4373443A (en) * 1980-02-15 1983-02-15 American Newspaper Publishers Association Method of high viscosity inking in rotary newspaper presses
FR2478958A1 (en) * 1980-04-01 1981-10-02 Decoufle INK SUPPLY DEVICE FOR PRINTING APPARATUSES FOR CIGARETTE-MAKING MACHINES
DE3014904A1 (en) * 1980-04-18 1981-11-05 Hauni-Werke Körber & Co KG, 2050 Hamburg METHOD AND ARRANGEMENT FOR TRANSFERRING COLOR FROM A COMMERCIAL COLOR CONTAINER TO A CIGARETTE PAPER STRIP
DE3135711A1 (en) * 1981-07-29 1983-02-10 Windmöller & Hölscher, 4540 Lengerich DISHWASHER FOR A ROTARY PRINTING MACHINE
IT1156658B (en) * 1982-09-08 1987-02-04 Gd Spa DISTRIBUTOR DEVICE FOR VISCOUS MATERIALS
JPS5962152A (en) * 1982-09-30 1984-04-09 Osaka Yomiuri Shinbunsha:Kk Ink supplier for rotary press printer
GB8510049D0 (en) * 1985-04-19 1985-05-30 Observer Ltd Printing press
JPH074922B2 (en) * 1988-03-31 1995-01-25 凸版印刷株式会社 Ink supply device

Also Published As

Publication number Publication date
EP0359955A2 (en) 1990-03-28
DE3832148A1 (en) 1990-04-05
DE8816767U1 (en) 1990-07-05
JPH02113944A (en) 1990-04-26
JP2820452B2 (en) 1998-11-05
EP0359955A3 (en) 1990-09-19
DE58907757D1 (en) 1994-07-07

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