EP0389923B1 - Ink rail device - Google Patents

Ink rail device Download PDF

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Publication number
EP0389923B1
EP0389923B1 EP90105184A EP90105184A EP0389923B1 EP 0389923 B1 EP0389923 B1 EP 0389923B1 EP 90105184 A EP90105184 A EP 90105184A EP 90105184 A EP90105184 A EP 90105184A EP 0389923 B1 EP0389923 B1 EP 0389923B1
Authority
EP
European Patent Office
Prior art keywords
chamber
doctor blade
ink
ink chamber
carrier
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
EP90105184A
Other languages
German (de)
French (fr)
Other versions
EP0389923A3 (en
EP0389923A2 (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 EP0389923A2 publication Critical patent/EP0389923A2/en
Publication of EP0389923A3 publication Critical patent/EP0389923A3/en
Application granted granted Critical
Publication of EP0389923B1 publication Critical patent/EP0389923B1/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
    • B41F31/027—Ink rail devices for inking ink rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/55—Member ends joined by inserted section

Definitions

  • the invention relates to a chambered doctor blade according to the preamble of patent claim 1.
  • US Pat. No. 3,298,305 discloses an inking unit with an inking roller and a chambered doctor blade having an ink chamber inside.
  • the ink chamber is delimited on its top and bottom by a doctor element.
  • the ink chamber is rotatably mounted on a support via a flange.
  • a flushing inking unit for a rotary printing press is known from EP 0 071 180 A1.
  • the ink chamber is a cavity which is delimited on its upper side and on its underside towards an anilox roller by a doctor blade or a doctor blade, which are screwed to an ink application bar.
  • the paint application bar itself forms the rear boundary of the paint chamber.
  • the invention has for its object to provide a chamber doctor blade that is simple to manufacture and exchangeable.
  • the chambered doctor blade according to the invention can be replaced as a whole when worn. As a result of very simple fasteners, handling is easy when changing. Another advantage is that there are no problems with the lateral sealing between the front area of the doctor elements and the side wall.
  • the chambered doctor blade according to FIGS. 1 and 2 has an ink chamber, designated overall by 1, which comprises a rear wall 2, two side walls 3 and two doctor elements 4, 5. These parts delimit an interior space 6 which is open towards an anilox roller 7.
  • the ink chamber 1 is produced as a one-piece molded part. This can be done for example by casting, milling or non-cutting deformation.
  • the ink chamber 1 is suitably made of metal. However, it is also possible to manufacture them from a hard, wear-resistant plastic.
  • the chambered doctor blade also has a carrier 8, which is fastened to the printing press and which can be adjusted with respect to the anilox roller 7, with one or more ink supply lines 9 and one or more ink return lines 10.
  • a hollow plug pin 11 is firmly inserted into the carrier 8, the front end of which projects beyond the carrier 8.
  • a hollow plug pin 12 which also projects beyond the carrier 8, is firmly inserted into the extension of the color return line 10.
  • the carrier 8 is fastened in a manner known per se, not shown, between the side walls of the printing press in such a way that the two doctor elements 4, 5 can be set against the anilox roller 7 or can be set down by the latter.
  • the ink chamber 1 has 2 bores 13 in its rear wall, the position and size of which is dimensioned such that the ink chamber 1 can be pushed onto the pins 11, 12 by means of the bores 13 and then held frictionally on the carrier 8.
  • plug pins 11 connected to paint feed lines 9, which are arranged in the central region of the paint chamber, while the plug pins 12 are suitably arranged in the vicinity of the side walls 3 for the color return. If no forced passage of the paint through the interior 6 is provided, the pins 12 can be omitted or can be designed as full pins. There is also the option of using pins instead of round corners.

Description

Die Erfindung betrifft eine Kammerrakel nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a chambered doctor blade according to the preamble of patent claim 1.

Aus der US 3 298 305 ist ein Farbwerk mit einer Farbauftragwalze und einer in ihrem Innern eine Farbkammer aufweisenden Kammerrakel bekannt. An ihrer Ober- und Unterseite wird die Farbkammer durch je ein Rakelelement begrenzt. Die Farbkammer ist über einen Flansch auf einem Träger drehbar befestigt.US Pat. No. 3,298,305 discloses an inking unit with an inking roller and a chambered doctor blade having an ink chamber inside. The ink chamber is delimited on its top and bottom by a doctor element. The ink chamber is rotatably mounted on a support via a flange.

Aus der EP 0 071 180 A1 ist ein Spülfarbwerk für eine Rotationsdruckmaschine bekannt. Die Farbkammer ist ein Hohlraum, der an seiner Oberseite und an seiner Unterseite zu einer Rasterwalze hin durch ein Rakelmesser bzw. ein Abstreifmesser begrenzt wird, die mit einer Farbauftragsleiste verschraubt sind. Die Farbauftragsleiste selbst bildet die rückseitige Begrenzung der Farbkammer.A flushing inking unit for a rotary printing press is known from EP 0 071 180 A1. The ink chamber is a cavity which is delimited on its upper side and on its underside towards an anilox roller by a doctor blade or a doctor blade, which are screwed to an ink application bar. The paint application bar itself forms the rear boundary of the paint chamber.

Weder aus der US 3 298 305 noch aus der EP 0 071 180 11 ist ein Farbwerk bekannt, das als einstückiges Bauelement aufgebaut ist.No inking unit is known from US Pat. No. 3,298,305 or from EP 0 071 180 11, which is constructed as a one-piece component.

Der Erfindung liegt die Aufgabe zugrunde, eine einfach herstellbare, leicht auswechselbare Kammerrakel zu schaffen.The invention has for its object to provide a chamber doctor blade that is simple to manufacture and exchangeable.

Diese Aufgabe wird durch Anwendung der Merkmale des Kennzeichens des Anspruchs 1 gelöst. Die erfindungsgemäße Kammerrakel läßt sich als ganze bei Verschleiß auswechseln. Infolge sehr einfacher Befestigungsmittel ist die Handhabung bei einem Auswechseln unkompliziert. Ein weiterer Vorteil ist darin zu sehen, daß keine Probleme mit der seitlichen Abdichtung zwischen dem vorderen Bereich der Rakelelemente und der Seitenwand auftreten.This object is achieved by applying the features of the characterizing part of claim 1. The chambered doctor blade according to the invention can be replaced as a whole when worn. As a result of very simple fasteners, handling is easy when changing. Another advantage is that there are no problems with the lateral sealing between the front area of the doctor elements and the side wall.

Ein Ausführungsbeispiel der Erfindung ist anhand der Zeichnung beschrieben. Auf dieser zeigt

Fig. 1
einen Schnitt durch eine erfindungsgemäße Kammerrakel mit Teilen des Halters und
Fig. 2
eine Ansicht eines Teiles der Kammerrakel nach Fig. 1 in Richtung des Pfeiles II.
An embodiment of the invention is described with reference to the drawing. On this shows
Fig. 1
a section through a chamber doctor blade according to the invention with parts of the holder and
Fig. 2
a view of part of the chamber doctor blade according to FIG. 1 in the direction of arrow II.

Die Kammerrakel gemäß Fig. 1 und 2 weist eine insgesamt mit 1 bezeichnete Farbkammer auf, die eine Rückwand 2, zwei Seitenwände 3 und zwei Rakelelemente 4, 5 umfaßt. Diese Teile begrenzen einen Innenraum 6, der zu einer Rasterwalze 7 hin offen ist.The chambered doctor blade according to FIGS. 1 and 2 has an ink chamber, designated overall by 1, which comprises a rear wall 2, two side walls 3 and two doctor elements 4, 5. These parts delimit an interior space 6 which is open towards an anilox roller 7.

Die Farbkammer 1 ist als einstückiges Formteil hergestellt. Dies kann beispielsweise durch Gießen, Fräsen oder spanlose Verformung geschehen. Die Farbkammer 1 ist zweckmäßig aus Metall hergestellt. Es besteht jedoch auch die Möglichkeit, sie aus einem harten verschleißfesten Kunststoff zu fertigen.The ink chamber 1 is produced as a one-piece molded part. This can be done for example by casting, milling or non-cutting deformation. The ink chamber 1 is suitably made of metal. However, it is also possible to manufacture them from a hard, wear-resistant plastic.

Die Kammerrakel weist weiterhin einen an der Druckmaschine befestigten, gegenüber der Rasterwalze 7 einstellbaren Träger 8 mit einer oder mehreren Farbzuführleitungen 9 und einer oder mehreren Farbrückführleitungen 10 auf. In Verlängerung der Farbzuführleitung 9 ist in den Träger 8 ein hohler Steckstift 11 fest eingesetzt, dessen vorderes Ende über den Träger 8 hinausragt. In gleicher Weise ist in die Verlängerung der Farbrückführleitung 10 ein hohler Steckstift 12 fest eingesetzt, der ebenfalls über den Träger 8 hinausragt. Der Träger 8 ist in an sich bekannter, nicht dargestellter Weise zwischen den Seitenwänden der Druckmaschine so bewegbar befestigt, daß die beiden Rakelelemente 4, 5 an die Rasterwalze 7 angestellt bzw. von dieser abgestellt werden können.The chambered doctor blade also has a carrier 8, which is fastened to the printing press and which can be adjusted with respect to the anilox roller 7, with one or more ink supply lines 9 and one or more ink return lines 10. In extension of the ink supply line 9, a hollow plug pin 11 is firmly inserted into the carrier 8, the front end of which projects beyond the carrier 8. In the same way, a hollow plug pin 12, which also projects beyond the carrier 8, is firmly inserted into the extension of the color return line 10. The carrier 8 is fastened in a manner known per se, not shown, between the side walls of the printing press in such a way that the two doctor elements 4, 5 can be set against the anilox roller 7 or can be set down by the latter.

Die Farbkammer 1 weist in ihrer Rückwand 2 Bohrungen 13 auf, deren Lage und Größe so bemessen ist, daß die Farbkammer 1 mittels der Bohrungen 13 auf die Steckstifte 11, 12 aufgeschoben werden kann und dann reibschlüssig am Träger 8 gehalten ist.The ink chamber 1 has 2 bores 13 in its rear wall, the position and size of which is dimensioned such that the ink chamber 1 can be pushed onto the pins 11, 12 by means of the bores 13 and then held frictionally on the carrier 8.

Es ist zweckmäßig, mindestens zwei an Farbzuführleitungen 9 angeschlossene Steckstifte 11 vorzusehen, die im mittleren Bereich der Farbkammer angeordnet sind, während die Steckstifte 12 für die Farbrückführung zweckmäßig in der Nähe der Seitenwände 3 angeordnet sind. Sofern kein Zwangdurchlauf der Farbe durch den Innenraum 6 vorgesehen ist, können die Steckstifte 12 entfallen oder als volle Stifte ausgebildet sein. Weiterhin besteht die Möglichkeit, die Steckstifte anstatt rund eckig auszuführen.It is expedient to provide at least two plug pins 11 connected to paint feed lines 9, which are arranged in the central region of the paint chamber, while the plug pins 12 are suitably arranged in the vicinity of the side walls 3 for the color return. If no forced passage of the paint through the interior 6 is provided, the pins 12 can be omitted or can be designed as full pins. There is also the option of using pins instead of round corners.

Claims (4)

  1. Chamber doctor blade for use in an inking unit of a printing machine, having a carrier (8), an ink chamber (1) which can be connected to an ink supply means, and a securing means for securing the ink chamber (1) to the carrier (8), wherein the ink chamber (1) has two doctor blade elements (4, 5) limiting the ink chamber above and below and which can be set against a forme roller (7), and two side walls (3) limiting the ink chamber (1) laterally,
    characterised in that
    the ink chamber (1) including the side walls (3) and the doctor blade elements (4, 5) is made as a one-piece formed piece, in that the securing means is a plug connection (11, 12, 13) and in that the ink chamber can be connected to the carrier (8) by means of the plug connection (11, 12, 13).
  2. Chamber doctor blade according to claim 1, characterised in that the plug connection includes at least one hollow guide pin (11) joining the inner chamber of the ink chamber (1) to an ink supply line (9) in the carrier (8).
  3. Chamber doctor blade according to claim 2, characterised in that at least one hollow guide pin (12) is connected to an ink return line (10) in the carrier (8) for connecting the ink chamber (1).
  4. Chamber doctor blade according to claim 2 or 3, characterised in that the guide pin or pins (11, 12) is/are fixedly inserted into the carrier (8).
EP90105184A 1989-03-25 1990-03-20 Ink rail device Expired - Lifetime EP0389923B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3909879 1989-03-25
DE3909879A DE3909879C1 (en) 1989-03-25 1989-03-25

Publications (3)

Publication Number Publication Date
EP0389923A2 EP0389923A2 (en) 1990-10-03
EP0389923A3 EP0389923A3 (en) 1991-05-08
EP0389923B1 true EP0389923B1 (en) 1994-01-05

Family

ID=6377216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90105184A Expired - Lifetime EP0389923B1 (en) 1989-03-25 1990-03-20 Ink rail device

Country Status (4)

Country Link
US (1) US5080013A (en)
EP (1) EP0389923B1 (en)
JP (1) JPH02279338A (en)
DE (2) DE3909879C1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4118426A1 (en) * 1991-06-05 1992-12-10 Koenig & Bauer Ag CHAMBER Squeegee for an inking unit of a rotary printing press
DE4320833C1 (en) * 1993-06-23 1994-09-22 Roland Man Druckmasch Method and device for exchanging a doctor blade of a chamber-type doctor for rotary printing machines
US5694847A (en) * 1995-05-24 1997-12-09 Trans Tech America, Inc. Ink cups for pad printing machines, methods of their manufacturing and machines including same
DK172892B1 (en) * 1997-10-20 1999-09-13 Hans Degn Dosage unit and method for continuous introduction of liquid solution samples into a system
EP1090756B1 (en) * 1999-10-05 2005-01-12 Gallus Ferd. Rüesch Ag Chambered doctor blade
US6464784B1 (en) * 1999-12-22 2002-10-15 Eastman Kodak Company Coating apparatus having a coating, recirculation and cleaning arrangement
DE10030600B4 (en) * 2000-06-21 2009-11-05 Koenig & Bauer Aktiengesellschaft Color box for a printing press
DE10214710A1 (en) * 2002-04-03 2003-10-23 Windmoeller & Hoelscher Ink chamber doctor blade
CN100368199C (en) * 2004-02-12 2008-02-13 佳能株式会社 Liquid applying apparatus and ink jet printing apparatus
JP4498148B2 (en) * 2004-02-12 2010-07-07 キヤノン株式会社 Liquid applicator, recording device
JP5063385B2 (en) * 2008-01-23 2012-10-31 キヤノン株式会社 Liquid coating apparatus and inkjet recording apparatus
KR101010324B1 (en) * 2008-09-02 2011-01-25 임한묵 Moisture Inspirator and Its Manntacturing Method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071180A1 (en) * 1981-07-29 1983-02-09 Windmöller & Hölscher Trough-like ink supply for a rotary printing machine

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE369114C (en) * 1923-02-15 C G Haubold A G Inking unit for roller printing machines with color supplied under pressure
US1583172A (en) * 1925-11-21 1926-05-04 R W Crabtree And Sons Ltd Inking mechanism for printing machines
US3046885A (en) * 1960-05-12 1962-07-31 Hoe & Co R Printing machine ink rail
US3298305A (en) * 1965-09-08 1967-01-17 Harris Intertype Corp Inking mechanism held in an indenting relationship with the form roll
US3384013A (en) * 1965-11-15 1968-05-21 Matthews & Co Jas H Roller fountain for liquid transfer in a rotary machine
GB1241793A (en) * 1967-07-21 1971-08-04 Colorflo Ltd Improvements in or relating to printing apparatus
DE2228685C3 (en) * 1972-06-13 1978-04-06 Escher Wyss Gmbh, 7980 Ravensburg Coating device
US4009657A (en) * 1975-02-25 1977-03-01 Scott Paper Company Apparatus for applying fluid to an intaglio roll for transfer to a soft, absorbent fibrous web
US4085672A (en) * 1975-09-11 1978-04-25 John Grosart Inking device
FR2527987B1 (en) * 1982-06-04 1986-06-20 Creusot Loire LOW BLADE INK DEVICE WITH REMOVABLE INK CUP
DE3320638C2 (en) * 1983-06-08 1986-10-16 Koenig & Bauer AG, 8700 Würzburg Ink dividing device on ink fountain rollers of printing machines
US4625643A (en) * 1984-08-09 1986-12-02 Davis William F Ink dispensing means
US4831927A (en) * 1988-05-31 1989-05-23 Rockwell International Corporation Printing press dampener

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071180A1 (en) * 1981-07-29 1983-02-09 Windmöller & Hölscher Trough-like ink supply for a rotary printing machine

Also Published As

Publication number Publication date
EP0389923A3 (en) 1991-05-08
DE3909879C1 (en) 1990-08-09
JPH02279338A (en) 1990-11-15
EP0389923A2 (en) 1990-10-03
DE59004073D1 (en) 1994-02-17
US5080013A (en) 1992-01-14

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