EP0692382B1 - Device for cleaning an inking device of an offset printing machine - Google Patents
Device for cleaning an inking device of an offset printing machine Download PDFInfo
- Publication number
- EP0692382B1 EP0692382B1 EP95108502A EP95108502A EP0692382B1 EP 0692382 B1 EP0692382 B1 EP 0692382B1 EP 95108502 A EP95108502 A EP 95108502A EP 95108502 A EP95108502 A EP 95108502A EP 0692382 B1 EP0692382 B1 EP 0692382B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- ink
- cleaning
- lifter
- take
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/04—Cleaning arrangements or devices for inking rollers
Definitions
- the invention relates to a device for cleaning an inking unit an offset printing machine with a separately driven ink fountain roller immersed in an ink fountain, an ink lifter roller and a downstream ink take-off roller of an inking unit roller train.
- An inking unit of this type is known from DE-AS 2 316 635, at who applied the cleaning liquid to a first inking roller is and by a second ink roller, the mixture of ink and Cleaning liquid scraped off.
- DE 3 606 006 A1 describes a device for cleaning a Inking unit known in which the application of the cleaning liquid depending on the ink layer thickness on the rollers / cylinders taking into account the strand length. At least two Feeds for the cleaning liquid are the primary and Assigned secondary strand of the inking unit.
- An inking unit for offset printing machines which as a film inking unit or lifter inking unit can be operated, is from the DE 2 703 424 B1 known.
- the ink lifter roller is in lift operation between the ink fountain roller and the assigned ink removal roller Single drum roller pivoted.
- the Ink take-up roller coupled to the ink fountain roller and the ink lifter roller serves as a rider roller.
- About an eccentric bearing Ink pick-up roller can be transferred to both positions.
- a disadvantage of the Execution according to DE 3 606 006 is that the ink fountain roller is not compatible with the rest of the single drum roller can be cleaned and therefore manually by the operator must be cleaned.
- a device for cleaning an inking unit is known from US Pat. No. 4,643,092 an ink fountain roller, an ink lifter roller and an ink take-off roller known.
- Ink fountain roller By switching on an additional roller in the cleaning operation Ink fountain roller in contact with the ink lifter roller via this roller.
- the Ink lifter roller is also in contact with the ink take-off roller, so that everyone called rollers form a single drum roller.
- JP-A-57120443 Patent Abstracts of Japan, Vol. 6, No. 213 (M-167)
- M-167 Patent Abstracts of Japan, Vol. 6, No. 213 (M-167)
- the Ink lifter roller carrying lever moves spring-loaded, such that the Ink lifter roller is in contact with the ink feed roller and the ink take-off roller.
- the object of the invention is to develop a solution that a simultaneous Cleaning of ink fountain roller and the downstream single drum roller permitted.
- a lifter inking unit arranged, of which an ink fountain roller 1 and an ink take-off roller 3rd are shown.
- the ink take-off roller 3 is arranged downstream of a single drum roller at least one feed device for the cleaning liquid and one Doctor tray as receiving device for the ink / cleaning liquid mixture assigned (not shown).
- an ink fountain roller 2 is arranged intermittently.
- the inking roller 2 is rotatably arranged on each end of a lever 7.
- Lever 7 is rotatably fixed with an eccentric bearing 4 and carries at the free end a cam roller 6.
- the cam roller 6 is one Control device 5, e.g. assigned as a cam.
- the Eccentric bearing 4 is connected via an articulated coupling 9 Working cylinder 8 connected.
- the mode of operation is as follows: after a print job has ended, after the end of the shift or with an unfavorable ink / dampening solution ratio it is necessary to clean the inking unit.
- the ink fountain roller 1 is driven by its separate drive decoupled.
- the inking roller 2 is in constant at its circumference Contact with the ink fountain roller 1 and the ink removal roller 3 brought (cleaning position).
- the working cylinder 8 is from actuated from a control station and moved over the coupling 9 and Eccentric 4 the lever 7 so that the inking roller 2 in Cleaning position is spent.
- the intermittent movement the inking roller 2 is exposed by the cam roller 6 is separated from the control device 5 (see dashed lines Presentation).
- the ink fountain roller 1 and ink fountain roller 2 are driven by friction on the downstream single drum roller.
- the Feeding device for the cleaning liquid is activated and the paint / cleaning fluid mixture is from a downstream arranged receiving device, e.g. a squeegee tray from which relevant inking unit roller doctored.
- the ink fountain roller 1 remains with her Drive coupled by this with the drive for the ink roller 3 and the downstream inking roller synchronously in the Cleaning position operated at the same peripheral speed becomes.
- the ink fountain roller 1 is also used for Ink take-up roller 3 different peripheral speed in the Cleaning position driven. The slip that occurs increases the cleaning effect on the Roller surface.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zur Reinigung eines Farbwerkes einer Offsetdruckmaschine, mit einer separat angetriebenen, in einen Farbkasten eintauchenden Farbkastenwalze, einer Farbheberwalze und einer nachgeordneten Farbabnahmewalze eines Farbwerkswalzenzuges.The invention relates to a device for cleaning an inking unit an offset printing machine with a separately driven ink fountain roller immersed in an ink fountain, an ink lifter roller and a downstream ink take-off roller of an inking unit roller train.
Ein Farbwerk dieser Art ist aus der DE-AS 2 316 635 bekannt, bei der auf eine erste Farbwalze die Reinigungsflüssigkeit aufgebracht wird und von einer zweiten Farbwalze wird das Gemisch aus Farbe und Reinigungsflüssigkeit abgerakelt.An inking unit of this type is known from DE-AS 2 316 635, at who applied the cleaning liquid to a first inking roller is and by a second ink roller, the mixture of ink and Cleaning liquid scraped off.
Aus der DE 3 606 006 A1 ist eine Einrichtung zum Reinigen eines Farbwerkes bekannt, bei der das Aufbringen der Reinigungsflüssigkeit in Abhängigkeit von der Farbschichtdicke auf den Walzen/Zylindern unter Berücksichtigung der Stranglänge erfolgt. Mindestens zwei Zuführungen für die Reinigungsflüssigkeit sind dem Primär- und Sekundärstrang des Farbwerkes zugeordnet.DE 3 606 006 A1 describes a device for cleaning a Inking unit known in which the application of the cleaning liquid depending on the ink layer thickness on the rollers / cylinders taking into account the strand length. At least two Feeds for the cleaning liquid are the primary and Assigned secondary strand of the inking unit.
Ein Farbwerk für Offsetdruckmaschinen, welches als Filmfarbwerk
oder Heberfarbwerk umstellbar betrieben werden kann, ist aus der
DE 2 703 424 B1 bekannt. Im Heberbetrieb wird die Farbheberwalze
zwischen Farbkastenwalze und der zugeordneten Farbabnahmewalze des
Walzenzuges verschwenkt. Bei Umstellung auf Filmbetrieb wird die
Farbabnahmewalze mit der Farbkastenwalze gekoppelt und die Farbheberwalze
dient als Reiterwalze. Über eine Exzenterlagerung ist die
Farbabnahmewalze in beide Stellungen überführbar. Nachteilig bei der
Ausführung nach DE 3 606 006 ist es, daß die Farbkastenwalze nicht mit dem
restlichen Walzenzug gereinigt werden kann und somit vom Bediener manuell
gereinigt werden muß.An inking unit for offset printing machines, which as a film inking unit
or lifter inking unit can be operated, is from the
DE 2 703 424 B1 known. The ink lifter roller is in lift operation
between the ink fountain roller and the assigned ink removal roller
Single drum roller pivoted. When switching to film operation, the
Ink take-up roller coupled to the ink fountain roller and the ink lifter roller
serves as a rider roller. About an eccentric bearing
Ink pick-up roller can be transferred to both positions. A disadvantage of the
Execution according to
Aus der US -A- 4,643,092 ist eine Einrichtung zum Reinigen eines Farbwerkes mit einer Farbkastenwalze, einer Farbheberwalze sowie einer Farbabnahmewalze bekannt. Durch Zuschalten einer zusätzlichen Walze ist im Reinigungsbetrieb die Farbkastenwalze über diese Walze mit der Farbheberwalze in Kontakt. Die Farbheberwalze ist darüber hinaus mit der Farbabnahmewalze in Kontakt, so daß alle genannten Walzen einen Walzenzug bilden.A device for cleaning an inking unit is known from US Pat. No. 4,643,092 an ink fountain roller, an ink lifter roller and an ink take-off roller known. By switching on an additional roller in the cleaning operation Ink fountain roller in contact with the ink lifter roller via this roller. The Ink lifter roller is also in contact with the ink take-off roller, so that everyone called rollers form a single drum roller.
Schließlich ist aus der JP -A- 57120443 (Patent Abstracts of Japan, Bnd. 6, Nr. 213 (M-167) ), eine weitere Einrichtung zum Reinigen eines Farbwerkes mit einer Farbzuführwalze, einer Farbheberwalze sowie einer Farbabnahmewalze bekannt. Durch Abschwenken eines Stützhebels um eine Stützwelle wird ein weiterer, die Farbheberwalze tragender Hebel federbelastet bewegt, derart, daß die Farbheberwalze mit der Farbzuführwalze und der Farbabnahmewalze in Kontakt ist.Finally, JP-A-57120443 (Patent Abstracts of Japan, Vol. 6, No. 213 (M-167)), another device for cleaning an inking unit with a Ink feed roller, an inking roller and an ink take-off roller are known. By pivoting a support lever around a support shaft, another, the Ink lifter roller carrying lever moves spring-loaded, such that the Ink lifter roller is in contact with the ink feed roller and the ink take-off roller.
Aufgabe der Erfindung ist es eine Lösung zu entwickeln, die eine gleichzeitige Reinigung von Farbkastenwalze und dem nachgeordneten Walzenzug gestattet.The object of the invention is to develop a solution that a simultaneous Cleaning of ink fountain roller and the downstream single drum roller permitted.
Gelöst wird das dadurch, daß die Farbheberwalze mit der Farbkastenwalze und der Farbabnahmewalze gekoppelt wird. Dadurch werden die Farbkastenwalze und die Farbheberwalze mit dem weiteren Farbwerkswalzenzug gereinigt. Dies befreit den Bediener von der manuellen Reinigungstätigkeit, verringert die Rüstzeit bei Farbwechsel und automatisiert somit das Reinigen des gesamten Farbwerkes.This is solved in that the inking roller with the ink fountain roller and Ink take-up roller is coupled. As a result, the ink fountain roller and the Ink lifter roller cleaned with the further inking unit roller. This frees the Operator from manual cleaning activity, reduces the set-up time Color change and thus automates the cleaning of the entire inking unit.
Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden.The invention will be explained in more detail using an exemplary embodiment.
Dabei zeigt:
- Fig. 1
- eine schematische Darstellung der angetriebenen Farbheberwalzen mit ihren benachbarten Walzen.
- Fig. 1
- a schematic representation of the driven inking rollers with their adjacent rollers.
In einem Druckwerk einer Offsetrotationsdruckmaschine ist ein Heberfarbwerk
angeordnet, von dem eine Farbkastenwalze 1 und eine Farbabnahmewalze 3
dargestellt sind. Der Farbabnahmewalze 3 ist ein Walzenzug nachgeordnet, dem
mindestens eine Zuführeinrichtung für die Reinigungsflüssigkeit sowie eine
Rakelwanne als Aufnahmeeinrichtung für das Farb-/Reinigungsflüssigkeitsgemisch
zugeordnet ist (nicht gezeigt). Zwischen Farbkastenwalze 1 und Farbabnahmewalze
3 ist eine Farbheberwalze 2 intermittierend angeordnet. Die Farbheberwalze 2 ist
stirnseitig drehbar an je einem Hebel 7 angeordnet. Der
Hebel 7 ist mit einer Exzenterlagerung 4 drehbar fixiert und tragt
am freien Ende eine Kurvenrolle 6. Der Kurvenrolle 6 ist eine
Steuereinrichtung 5, z.B. als Kurvenscheibe, zugeordnet. Die
Exzenterlagerung 4 ist über eine angelenkte Koppel 9 mit einem
Arbeitszylinder 8 verbunden.In a printing unit of an offset rotary printing machine there is a lifter inking unit
arranged, of which an
Die Wirkungsweise ist wie folgt: Nach Beendigung eines Druckauftrages,
nach Schichtende oder bei einem ungünstigen Farb-/Feuchtmittelverhältnis
ist es notwendig das Farbwerk zu reinigen.
Dabei wird die Farbkastenwalze 1 von ihrem separaten Antrieb
entkoppelt. Die Farbheberwalze 2 wird an ihrem Umfang in ständigen
Kontakt mit der Farbkastenwalze 1 und der Farbabnahmewalze 3
gebracht (Reinigungsposition). Der Arbeitszylinder 8 wird dazu von
einem Leitstand aus betätigt und bewegt über die Koppel 9 und die
Exzenterlagerung 4 den Hebel 7, so daß die Farbheberwalze 2 in
Reinigungsposition verbracht wird. Die intermittierende Bewegung
der Farbheberwalze 2 ist dabei ausgesetzt, indem die Kurvenrolle 6
von der Steuereinrichtung 5 getrennt wird (siehe gestrichelte
Darstellung). Die Farbkastenwalze 1 und Farbheberwalze 2 werden
mittels Friktion über den nachgeordneten Walzenzug angetrieben. Die
Zuführeinrichtung für die Reinigungsflüssigkeit wird aktiviert und
das Farb-/Reinigungsflüssigkeitsgemisch wird von einer stromabwärts
angeordneten Aufnahmeeinrichtung, z.B. einer Rakelwanne, von der
betreffenden Farbwerkswalze abgerakelt.The mode of operation is as follows: after a print job has ended,
after the end of the shift or with an unfavorable ink / dampening solution ratio
it is necessary to clean the inking unit.
The
In einer weiteren Ausbildung bleibt die Farbkastenwalze 1 mit ihrem
Antrieb gekoppelt, indem dieser mit dem Antrieb für die Farbabnahmewalze
3 und dem nachgeordneten Farbwalzenzug synchron in der
Reinigungsposition mit gleicher Umfangsgeschwindigkeit betrieben
wird. In Weiterbildung ist die Farbkastenwalze 1 auch mit zur
Farbabnahmewalze 3 unterschiedlicher Umfangsgeschwindigkeit in der
Reinigungsposition angetrieben. Der dabei auftretende Schlupf
erhöht in Folge des Wischeffekts die Reinigungswirkung auf der
Walzenoberfläche. In a further training, the
- 11
- FarbkastenwalzeInk fountain roller
- 22nd
- FarbheberwalzeInking roller
- 33rd
- FarbabnahmewalzeInk take-up roller
- 44th
- ExzenterlagerungEccentric bearing
- 55
- SteuereinrichtungControl device
- 66
- KurvenrolleCam roller
- 77
- Hebellever
- 88th
- ArbeitszylinderWorking cylinder
- 99
- KoppelPaddock
Claims (4)
- Device for cleaning an inking unit of an offset printing press with a separately driven ink fountain roller (1) dipping into an ink fountain, a controlled ink lifter roller (2), an inking roller train with ink take-off roller (3) and a feed device for a cleaning liquid as well as a receiving device for the ink/cleaning liquid mixture, characterised in that a lever (7) carrying the ink lifter roller (2) is arranged in an eccentric bearing (4), that the eccentric bearing (4) is linked with a pivoted link (9) and a subsequently arranged working cylinder (8), that the lever (7) carrying a cam roller (6) in cleaning operation by actuation of the eccentric bearing (4) by means of the working cylinder (8) brings the ink lifter roller (2) into contact with the ink fountain roller (1) and the ink take-off roller (3) and the cam roller (6) is separatable from a control device (5).
- Device according to Claim 1, characterised in that the ink fountain roller (1) is separated on the drive side and by means of friction turns with the ink lifter roller (2) and the ink take-off roller (3) at press speed.
- Device according to Claim 1, characterised in that the ink fountain roller (1) is driven synchronously relative to the ink take-off roller (3) and the subsequently arranged ink roller train.
- Device according to Claim 1, characterised in that the ink fountain roller (1) is driven with differing peripheral speed relative to the ink take-off roller (3) and the subsequently arranged ink roller train.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4424590A DE4424590C2 (en) | 1994-07-13 | 1994-07-13 | Device for cleaning an inking unit of an offset printing machine |
DE4424590 | 1994-07-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0692382A2 EP0692382A2 (en) | 1996-01-17 |
EP0692382A3 EP0692382A3 (en) | 1996-12-11 |
EP0692382B1 true EP0692382B1 (en) | 1998-12-09 |
Family
ID=6522959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95108502A Expired - Lifetime EP0692382B1 (en) | 1994-07-13 | 1995-06-02 | Device for cleaning an inking device of an offset printing machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US5575210A (en) |
EP (1) | EP0692382B1 (en) |
JP (1) | JP3004568B2 (en) |
AT (1) | ATE174266T1 (en) |
DE (2) | DE4424590C2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10112756B4 (en) * | 2000-04-26 | 2012-01-19 | Heidelberger Druckmaschinen Ag | Film inking unit in a printing machine and method for its cleaning |
DE10100910B4 (en) * | 2000-02-09 | 2012-03-08 | Heidelberger Druckmaschinen Ag | Lifting inking unit for printing presses |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19739283C2 (en) * | 1997-09-08 | 2002-10-24 | Roland Man Druckmasch | Method for achieving the production printing status in a web-fed rotary printing press |
DE19800475A1 (en) * | 1998-01-09 | 1999-07-15 | Koenig & Bauer Ag | Method and device for influencing the color distribution |
DE19801623B4 (en) * | 1998-01-17 | 2004-02-05 | Man Roland Druckmaschinen Ag | Method for operating an offset rotary printing press |
DE102004059852B4 (en) * | 2003-12-11 | 2007-12-27 | Koenig & Bauer Aktiengesellschaft | Color lifters in printing presses |
DE102007010761A1 (en) * | 2007-03-06 | 2008-09-11 | Man Roland Druckmaschinen Ag | Cleaning device for guide rollers of a printing unit |
CN111216439B (en) * | 2018-02-09 | 2021-08-03 | 海宁光圣晶体材料有限公司 | Ink scraping device for ink roller shaft neck of ink supply system of gravure printing machine |
DE102020120997A1 (en) | 2020-08-10 | 2022-02-10 | Koenig & Bauer Ag | Method for operating a printing unit of a printing press and printing unit |
DE102020120996A1 (en) | 2020-08-10 | 2022-02-10 | Koenig & Bauer Ag | Printing unit with a forme cylinder and an inking unit inking the forme cylinder during operation |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1082409A (en) * | 1911-05-23 | 1913-12-23 | Cottrell C B & Sons Co | Offset mechanism for printing-machines. |
US3683805A (en) * | 1970-07-23 | 1972-08-15 | Harris Intertype Corp | Liquid handling mechanism |
US3842735A (en) * | 1972-12-22 | 1974-10-22 | Harris Intertype Corp | Lithographic printing apparatus and wash-up device |
DE2703424C2 (en) * | 1977-01-28 | 1979-05-17 | Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg | Inking unit for offset printing machines |
JPS57120443A (en) * | 1981-01-21 | 1982-07-27 | Dainippon Screen Mfg Co Ltd | Ink feeder for plate cylinder of printing plate |
DD236053A1 (en) * | 1985-04-12 | 1986-05-28 | Polygraph Leipzig | DEVICE FOR APPLYING AND DISPENSING CLEANING FLUID |
US4643092A (en) * | 1986-02-12 | 1987-02-17 | Miyakoshi Printing Machinery Co., Ltd. | Easy-to-clean inking mechanism for a printing press |
US5251566A (en) * | 1990-08-31 | 1993-10-12 | Ricoh Company, Ltd. | Stencil printer with a cam baissed press roller |
DE9110345U1 (en) * | 1991-08-22 | 1991-10-10 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Dampening system for offset printing machines |
JPH0632036U (en) * | 1992-10-05 | 1994-04-26 | 株式会社篠原鉄工所 | Ink roller cleaning device |
DE4322615C2 (en) * | 1993-07-07 | 1997-10-23 | Heidelberger Druckmasch Ag | Washing device for the inking unit of rotary printing machines |
-
1994
- 1994-07-13 DE DE4424590A patent/DE4424590C2/en not_active Expired - Fee Related
-
1995
- 1995-06-02 EP EP95108502A patent/EP0692382B1/en not_active Expired - Lifetime
- 1995-06-02 AT AT95108502T patent/ATE174266T1/en not_active IP Right Cessation
- 1995-06-02 DE DE59504467T patent/DE59504467D1/en not_active Expired - Lifetime
- 1995-07-12 JP JP7176460A patent/JP3004568B2/en not_active Expired - Fee Related
- 1995-07-13 US US08/502,279 patent/US5575210A/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10100910B4 (en) * | 2000-02-09 | 2012-03-08 | Heidelberger Druckmaschinen Ag | Lifting inking unit for printing presses |
DE10112756B4 (en) * | 2000-04-26 | 2012-01-19 | Heidelberger Druckmaschinen Ag | Film inking unit in a printing machine and method for its cleaning |
Also Published As
Publication number | Publication date |
---|---|
EP0692382A3 (en) | 1996-12-11 |
DE4424590A1 (en) | 1996-01-18 |
US5575210A (en) | 1996-11-19 |
DE59504467D1 (en) | 1999-01-21 |
JPH0839788A (en) | 1996-02-13 |
DE4424590C2 (en) | 1997-12-18 |
EP0692382A2 (en) | 1996-01-17 |
JP3004568B2 (en) | 2000-01-31 |
ATE174266T1 (en) | 1998-12-15 |
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