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EP0140092A1 - Ink return flow system in a rotary printing machine - Google Patents

Ink return flow system in a rotary printing machine Download PDF

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Publication number
EP0140092A1
EP0140092A1 EP84110870A EP84110870A EP0140092A1 EP 0140092 A1 EP0140092 A1 EP 0140092A1 EP 84110870 A EP84110870 A EP 84110870A EP 84110870 A EP84110870 A EP 84110870A EP 0140092 A1 EP0140092 A1 EP 0140092A1
Authority
EP
European Patent Office
Prior art keywords
ink
rotary printing
channel
printing machine
return flow
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
EP84110870A
Other languages
German (de)
French (fr)
Other versions
EP0140092B1 (en
Inventor
Georg Schneider
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
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0140092A1 publication Critical patent/EP0140092A1/en
Application granted granted Critical
Publication of EP0140092B1 publication Critical patent/EP0140092B1/en
Expired 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

Definitions

  • the invention relates to a color return system in an inking unit of a rotary printing press according to the preamble of claim 1.
  • the invention has for its object to provide a tubeless color return system for an inking unit of a rotary printing press.
  • the device has a low installation height, and good accessibility of the inking unit is made possible, and the return system can be easily hung or moved from one ink tank to another.
  • the return system is easy to clean and the returning color can be observed well. It is possible to replace the color return channels when changing the color of the printing ink.
  • a driven anilox roller 3 is mounted in side frames 1, 2 of an inking unit, for example a flushing inking unit, as is known from DE-PS 31 35 711.
  • Ink drip pans 6 are arranged below the anilox roller 3.
  • the ink sumps 6 can be of different lengths, e.g. B. extend over half, a quarter or the entire length of the anilox roller 3.
  • the ink collecting troughs 6 are funnel-shaped and have an outlet opening 7 at their lowest point.
  • the ink sumps 6 are placed on supports 8 fixed to the side frame.
  • Color return channels 11 are arranged for returning the printing ink from the ink collecting trough 6 into an ink tank 9.
  • the color return channels 11 are preferably telescopic, so that they can be pulled apart to different extents as required.
  • a color return gutter telescope therefore consists of at least one inner gutter 12 and one outer gutter 13.
  • the inner gutter 12 is inserted into the outer gutter 13.
  • Both channels 12, 13 preferably have a rectangular cross section, that is to say they are designed as rectangular tubes.
  • An end face 14 of the inner groove 12 and an end face 16 of the outer groove 13 are closed. In a bottom of the outer groove 13, at the end with the closed end face 16, a drain opening 17 is provided.
  • An inflow opening 18 is provided in an upper side of the inner channel 12 and at the end with the closed end face 14.
  • the color return channels 11 are fastened on supports 19 fixed to the side frame.
  • screws 21 are fastened to the supports 19, onto the shaft of which brackets 22 which are welded to the inner or outer groove 12, 13 are pressed.
  • the inlet openings 18 of the inner channels 12 are on the outlet openings 7 of the ink collecting troughs 6, the outlet openings 17 of the outer channels 13 on the filler neck 23 of the. Paint tanks 9 aligned. The excess printing ink can then be returned in a simple manner in each case from the ink collecting trough 6 to the ink tanks 9.

Landscapes

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

Abstract

Zwischen einer Farbauffangwanne (6) eines Farbwerkes einer Rotationsdruckmaschine und einem Farbtank (9) ist eine steife, nicht schlauchförmige Farbrücklaufrinne (11) vorgesehen. Die Farbrücklaufrinne (11) kann teleskopartig auseinanderziehbar ausgeführt sein.A rigid, non-tubular ink return channel (11) is provided between an ink tray (6) of an inking unit of a rotary printing press and an ink tank (9). The color return channel (11) can be made telescopic.

Description

Die Erfindung betrifft ein Farbrücklaufsystem in einem Farbwerk einer Rotationsdruckmaschine gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a color return system in an inking unit of a rotary printing press according to the preamble of claim 1.

Durch die DE-OS 31 35 711 ist ein sogenanntes Spülfarbwerk für eine Rotationsdruckmaschine bekannt geworden. Mit Spülfarbwerken können dünnflüssige Druckfarben verarbeitet werden.From DE-OS 31 35 711 a so-called flushing inking unit for a rotary printing press has become known. Low-viscosity printing inks can be processed with flushing inking units.

Bei derartigen Farbwerken war es bisher üblich, die Druckfarbe mittels Schläuchen dem Farbwerk zu- und abzuführen. Doch beeinträchtigen allzu viele Schläuche die Bedienbarkeit der Farbwerke.In the case of such inking units, it was previously customary to supply and remove the printing ink from the inking unit by means of tubes. However, too many hoses impair the usability of the inking units.

Der Erfindung liegt die Aufgabe zugrunde, ein schlauchloses Farbrücklaufsystem für ein Farbwerk einer Rotationsdruckmaschine zu schaffen.The invention has for its object to provide a tubeless color return system for an inking unit of a rotary printing press.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst.The object is achieved by the features of claim 1.

Die mit der Erfindung erzielbaren Voteile bestehen insbesondere darin, daß die Einrichtung eine geringe Einbauhöhe aufweist, und eine gute Zugänglichkeit des Farbwerkes ermöglicht wird, ein Verhängen oder Verschieben des Rücklaufsystems von einem Farbtank zum anderen ist leicht zu bewerkstelligen. Das Rücklaufsystem ist leicht zu reinigen, und rücklaufende Farbe kann gut beobachtet werden. Ein zum Farbwechsel der Druckfarbe notwendiges Austauschen der Farbrücklaufrinnen ist onne Werkzeug möglich.The advantages that can be achieved with the invention consist in particular in the fact that the device has a low installation height, and good accessibility of the inking unit is made possible, and the return system can be easily hung or moved from one ink tank to another. The return system is easy to clean and the returning color can be observed well. It is possible to replace the color return channels when changing the color of the printing ink.

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

  • Fig. 1 eine Vorderansicht eines Farbwerkes mit der erfindungsgemäßen Farbrücklaufeinrichtung;
  • Fig. 2 einen Schnitt quer durch eine erfindungsgemäße Farbrücklaufrinne mit einer Einrichtung zum Befestigen der Farbrücklaufrinne;
  • Fig. 3 einen Schnitt längs durch die Farbrücklaufrinne nach Fig. 2.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it
  • Figure 1 is a front view of an inking unit with the color return device according to the invention.
  • 2 shows a section across a color return channel according to the invention with a device for fastening the color return channel;
  • 3 shows a section longitudinally through the color return channel according to FIG. 2.

In Seitengestellen 1, 2 eines Farbwerkes, beispielsweise eines Spülfarbwerkes, wie es durch die DE-PS 31 35 711 bekannt ist, ist eine angetriebene Rasterwalze 3 gelagert. Eine Farbauftragsleiste 4 mit einem nicht dargestellten Rakelmesser und Abstreifmesser bildet zusammen mit einem Teil eines Umfangs der Rasterwalze einen Farbfüllraum, der über z. B. eine Schlauchverbindung mit einem Farbtank verbunden ist (nicht dargestellt).A driven anilox roller 3 is mounted in side frames 1, 2 of an inking unit, for example a flushing inking unit, as is known from DE-PS 31 35 711. An ink application bar 4 with a doctor blade and doctor blade, not shown, forms, together with part of a circumference of the anilox roller, an ink filling space which, for. B. a hose connection is connected to a paint tank (not shown).

Unterhalb der Rasterwalze 3 sind Farbauffangwannen 6 angeordnet. Die Farbauffangwannen 6 können verschieden lang sein, z. B. sich über die halbe, viertel oder ganze Länge der Rasterwalze 3 erstrecken. Die Farbauffangwannen 6 sind trichterförmig gestaltet und weisen an ihrer tiefsten Stelle eine Auslauföffnung 7 auf. Die Farbauffangwannen 6 werden auf seitengestellfeste Träger 8 aufgelegt.Ink drip pans 6 are arranged below the anilox roller 3. The ink sumps 6 can be of different lengths, e.g. B. extend over half, a quarter or the entire length of the anilox roller 3. The ink collecting troughs 6 are funnel-shaped and have an outlet opening 7 at their lowest point. The ink sumps 6 are placed on supports 8 fixed to the side frame.

Zur Rückleitung der Druckfarbe aus der Farbauffangwanne 6 in einen Farbtank 9 sind Farbrücklaufrinnen 11 angeordnet. Die Farbrücklaufrinnen 11 sind vorzugsweise teleskopartig ausgeführt, so daß sie je nach Bedarf verschieden weit auseinandergezogen werden können. Ein Farbrücklaufrinnenteleskop besteht deshalb aus mindestens einer inneren Rinne 12 und einer äußeren Rinne 13. Die innere Rinne 12 wird in die äußere Rinne 13 eingeschoben. Vorzugsweise haben beide Rinnen 12, 13 einen rechteckigen Querschnitt, sind also als Rechteckrohre ausgeführt. Eine Stirnseite 14 der inneren Rinne 12 und eine Stirnseite 16 der äußeren Rinne 13 sind gescnlossen. In einer Unterseite der äußeren Rinne 13, an dem Ende mit der geschlossenen Stirnseite 16 ist eine Abflußöffnung 17 vorgesehen. In einer Oberseite der inneren Rinne 12 und an dem Ende mit der geschlossenen Stirnseite 14 ist eine Zuflußöffnung 18 vorgesehen.Color return channels 11 are arranged for returning the printing ink from the ink collecting trough 6 into an ink tank 9. The color return channels 11 are preferably telescopic, so that they can be pulled apart to different extents as required. A color return gutter telescope therefore consists of at least one inner gutter 12 and one outer gutter 13. The inner gutter 12 is inserted into the outer gutter 13. Both channels 12, 13 preferably have a rectangular cross section, that is to say they are designed as rectangular tubes. An end face 14 of the inner groove 12 and an end face 16 of the outer groove 13 are closed. In a bottom of the outer groove 13, at the end with the closed end face 16, a drain opening 17 is provided. An inflow opening 18 is provided in an upper side of the inner channel 12 and at the end with the closed end face 14.

Die Farbrücklaufrinnen 11 sind auf seitengestellfesten Trägern 19 befestigt. Zu diesem Zweck sind Schrauben 21 an den Trägern 19 befestigt, auf deren Schaft an innerer bzw. äußerer Rinne 12, 13 angeschweißte Klammern 22 aufgedrückt werden.The color return channels 11 are fastened on supports 19 fixed to the side frame. For this purpose, screws 21 are fastened to the supports 19, onto the shaft of which brackets 22 which are welded to the inner or outer groove 12, 13 are pressed.

Die Zuflußöffnungen 18 der inneren Rinnen 12 werden auf die Auslauföffnungen 7 der Farbauffangwannen 6, die Abflußöffnungen 17 der äußeren Rinnen 13 auf Einfüllstutzen 23 der. Farbtanks 9 ausgerichtet. Die überschüssige Druckfarbe kann dann auf einfache Weise jeweils aus der Farbauffangwanne 6 in die Farbtanks 9 zurückgeleitet werden.The inlet openings 18 of the inner channels 12 are on the outlet openings 7 of the ink collecting troughs 6, the outlet openings 17 of the outer channels 13 on the filler neck 23 of the. Paint tanks 9 aligned. The excess printing ink can then be returned in a simple manner in each case from the ink collecting trough 6 to the ink tanks 9.

Teileliste

  • 1 Seitengestell
  • 2 Seitengestell
  • 3 Rasterwalze
  • 4 Farbauftragleiste
  • 5
  • 6 Farbauffangwanne
  • 7 Auslauföffnung
  • 8 Träger
  • 9 Farbtank
  • 10
  • 11 Farbrückl'aufrinne
  • 12 Rinne, innere
  • 13 Rinne, äußere
  • 14 Stirnseite (12)
  • 15
  • 16 Stirnseite (13)
  • 17 Abflußöffnung (13)
  • 18 Zuflußöffnung (12)
  • 19 Träger
  • 20
  • 21 Schraube
  • 22 Klammer
  • 23 Einfüllstutzen
  • 24
  • 25
  • 26
  • 27
Parts list
  • 1 side frame
  • 2 side frames
  • 3 anilox roller
  • 4 paint application bar
  • 5
  • 6 ink tray
  • 7 outlet opening
  • 8 carriers
  • 9 paint tank
  • 10th
  • 11 colored back gutter
  • 12 gutter, inner
  • 13 gutter, outer
  • 14 end face (12)
  • 15
  • 16 end face (13)
  • 17 drain opening (13)
  • 18 inflow opening (12)
  • 19 carriers
  • 20th
  • 21 screw
  • 22 bracket
  • 23 filler neck
  • 24th
  • 25th
  • 26
  • 27th

Claims (4)

1. Vorrichtung zum Rückführen überschüssiger Druckfarbe von einer Farbauffangwanne eines Farbwerkes einer Rotationsdruckmaschine zu einem Druckfarbenbehälter, dadurch gekennzeichnet, daß zwischen einer Auslauföffnung (7) der Farbauffangwanne (6) eine steife Farbrücklauf rinne (11) vorgesehen ist.1. Device for returning excess ink from an ink tray of an inking unit of a rotary printing press to an ink tank, characterized in that a stiff color return channel (11) is provided between an outlet opening (7) of the ink tray (6). 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Farbrücklaufrinne (11) aus mindestens einer inneren Rinne (12) und einer äußeren Rinne (13) besteht, daß die innere Rinne (12) in die äußere Rinne (13) hineinschiebbar und aus ihr herausziehbar angeordnet ist.2. Device according to claim 1, characterized in that the color return channel (11) consists of at least one inner channel (12) and an outer channel (13), that the inner channel (12) in the outer channel (13) can be pushed in and out your extractable is arranged. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß sowohl an innerer Rinne (12) als auch an äußerer Rinne (13) Befestigungsklammern (22) vorgesehen sind.3. Apparatus according to claim 1 or 2, characterized in that fastening clips (22) are provided both on the inner channel (12) and on the outer channel (13). 4. Vorrichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Rinnen (11; 12; 13) aus einem Rechteckrohr bestehen.4. Apparatus according to claim 1 to 3, characterized in that the channels (11; 12; 13) consist of a rectangular tube.
EP84110870A 1983-09-23 1984-09-12 Ink return flow system in a rotary printing machine Expired EP0140092B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3334469 1983-09-23
DE3334469A DE3334469C2 (en) 1983-09-23 1983-09-23 Ink return system in a rotary printing press

Publications (2)

Publication Number Publication Date
EP0140092A1 true EP0140092A1 (en) 1985-05-08
EP0140092B1 EP0140092B1 (en) 1987-11-25

Family

ID=6209884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110870A Expired EP0140092B1 (en) 1983-09-23 1984-09-12 Ink return flow system in a rotary printing machine

Country Status (4)

Country Link
US (1) US4603632A (en)
EP (1) EP0140092B1 (en)
JP (1) JPS6092858A (en)
DE (1) DE3334469C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004091914A1 (en) * 2003-04-04 2004-10-28 Koenig & Bauer Aktiengesellschaft Ink dosing device for variable widths of fabric to be printed

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3519294A1 (en) * 1985-05-30 1986-12-04 Koenig & Bauer AG, 8700 Würzburg WATER CASE FOR A DAMPING UNIT OF AN OFFSET ROTATION PRINTING MACHINE
JP2550186Y2 (en) * 1991-03-28 1997-10-08 ハマダ印刷機械株式会社 Ink supply device for offset printing press

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587463A (en) * 1970-05-18 1971-06-28 Wallace H Granger Simplified circulating inking system for rotary newspaper printing press
US3974768A (en) * 1975-03-31 1976-08-17 Molins Machine Company, Inc. Dual ink circulation and wash-up system for a press
FR2392820A1 (en) * 1977-06-03 1978-12-29 Martin Sa PERFECTION OF THE INK RETURN CIRCUIT OF A FLEXOGRAPHIC PRINTER

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Publication number Priority date Publication date Assignee Title
US1407510A (en) * 1920-06-11 1922-02-21 Simon Ltd Henry Apparatus for unloading grain
CH110256A (en) * 1924-08-26 1925-09-16 Birchmeier & Cie Funnel for filling petrol in motor vehicles.
CH300966A (en) * 1951-03-20 1954-08-31 Strachan & Henshaw Ltd Inking unit for printing machines.
US2965140A (en) * 1958-06-02 1960-12-20 Automatic Canteen Co Measuring apparatus
FR1531614A (en) * 1967-05-24 1968-07-05 Holweg Const Mec Inking and inking process for rotogravure and rotogravure-transfer printing machines
US3926114A (en) * 1967-06-30 1975-12-16 Walter E S Matuschke Rotary lithographic printing press with ink and dampening fluid separator
DE1961439A1 (en) * 1969-11-06 1971-06-16 Medizin Labortechnik Veb K Gas cylinder valve for high-tension gases, especially for oxygen
US4121222A (en) * 1977-09-06 1978-10-17 A. B. Dick Company Drop counter ink replenishing system
US4188985A (en) * 1977-11-28 1980-02-19 Osterman Evan J Structure for servicing a plurality of motor vehicles simultaneously
DE3005669A1 (en) * 1980-02-15 1981-10-01 Schüttgutfördertechnik AG, 9009 St. Gallen DEVICE FOR CONVEYING SHEET-CAPABLE GOODS, ESPECIALLY SAND STORED UNDER WATER, GRAVEL OR THE LIKE.
DE3135711A1 (en) * 1981-07-29 1983-02-10 Windmöller & Hölscher, 4540 Lengerich DISHWASHER FOR A ROTARY PRINTING MACHINE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3587463A (en) * 1970-05-18 1971-06-28 Wallace H Granger Simplified circulating inking system for rotary newspaper printing press
US3974768A (en) * 1975-03-31 1976-08-17 Molins Machine Company, Inc. Dual ink circulation and wash-up system for a press
FR2392820A1 (en) * 1977-06-03 1978-12-29 Martin Sa PERFECTION OF THE INK RETURN CIRCUIT OF A FLEXOGRAPHIC PRINTER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004091914A1 (en) * 2003-04-04 2004-10-28 Koenig & Bauer Aktiengesellschaft Ink dosing device for variable widths of fabric to be printed

Also Published As

Publication number Publication date
DE3334469C2 (en) 1985-11-21
US4603632A (en) 1986-08-05
JPS6092858A (en) 1985-05-24
DE3334469A1 (en) 1985-04-11
EP0140092B1 (en) 1987-11-25

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