EP0861723A2 - Reinigung eines Farbwerks einer Druckmaschine - Google Patents
Reinigung eines Farbwerks einer Druckmaschine Download PDFInfo
- Publication number
- EP0861723A2 EP0861723A2 EP98101424A EP98101424A EP0861723A2 EP 0861723 A2 EP0861723 A2 EP 0861723A2 EP 98101424 A EP98101424 A EP 98101424A EP 98101424 A EP98101424 A EP 98101424A EP 0861723 A2 EP0861723 A2 EP 0861723A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ink
- rollers
- ductor
- inking unit
- printing press
- 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
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 method for cleaning an inking unit Printing machine, the ink metering elements of the ink zones of the ink fountain being closed and another drive of the printing machine takes place.
- the invention relates further devices for performing the method with an inking unit, the one Ink fountain, ink metering elements, a lifter, a ductor, a friction roller, Has intermediate rollers and inking rollers.
- Inking units of printing presses have to be taken out of service or when changing colors getting cleaned. So far, the ink metering elements have been closed, the lifting stroke turned off and then printed as many waste sheets until most of the color was removed from the inking unit. Subsequently, the residual color was removed using a Washing removed.
- the disadvantage of this method was that the color was in the inking unit, had to be disposed of completely as waste. This was done partly due to the high number of printed waste sheets, partly due to the Detergent dissolved color. This type of cleaning also took a lot of time Demand, which increased the machine life and thus the productivity decreased.
- the invention is therefore based on the object of a method and devices to make available the type mentioned at the beginning, by means of which the inking unit can be used in a shorter time less paint waste can be cleaned.
- the object is achieved in that a further drive the Inking unit is used to transport the ink back into the ink fountain by the Clock movement of the lifter between the ductor and friction roller continues, and that the usual cleaning of the inking unit only after this return of the ink is made.
- a further drive the Inking unit is used to transport the ink back into the ink fountain by the Clock movement of the lifter between the ductor and friction roller continues, and that the usual cleaning of the inking unit only after this return of the ink is made.
- the knowledge underlying the invention is that closed Paint metering elements scrape paint off the ductor and it is therefore possible to Continuation of the color lifting stroke from the inking unit into the ink fountain to be transported back. Since the ink layer thickness on the ductor, on the lifter and on the Friction roller is largest and then with each transition to another roller If the color split decreases by about half, most of the color is in the upper inking unit area. This means that most of those in the inking unit Color transported back into the ink fountain by the method according to the invention will. This is also quicker than printing the color on the waste paper this color must go through the entire inking system.
- the ink returned to the ink fountain reduces ink waste and can be reused. If there is a color change, the color of the color box is changed the operator is returned to the storage container.
- less detergent is required and cleaning is less time consuming.
- This reduction in waste that has to be disposed of as hazardous waste is over today ecological reasons an important requirement.
- the particular advantage of the invention is that this requirement is not only met, but at the same time greater economy is achieved.
- Another advantage is that less ink is given in squeegee boxes, which is the removal of excess Serve color from a printing unit. The emptying and monitoring of these squeegee boxes takes less time to transport the paint back according to the invention.
- a substantial acceleration of the cleaning process is achieved in that the The ductor and the stroke of the jack are driven faster than the printing press. On In this way, most of the ink in the inking unit is reduced within a very short time Time back in the paint box.
- a device of the type mentioned at the outset is used to carry out this method, which is characterized in that the ductor and the stroke of the jack independently of Main drive of the printing press are driven. This enables acceleration the color return transport thanks to a faster drive.
- a further embodiment of the method provides that the Color a separation of the ink transfer between the rollers with high Ink layer thickness and the rollers with a small ink layer thickness.
- the color layer thickness decreases by about half with each color split. The more ink splits between the ink fountain and a roller, the less is the ink layer thickness of this roller.
- the retransfer of the color is in the ink fountain more difficult and takes longer, the more color splits between one Roller and the ink fountain take place. It can therefore make sense to use one Separation of the rollers to provide a return transport of the ink only for the rollers, which have a large color layer thickness.
- a further acceleration of the return transport of the color in the ink fountain can be achieved in that the rollers closer to the ink fountain faster are driven as the printing press.
- the device for cleaning an inking unit of a printing press can Implementation of a method according to one of claims 2 to 7 configured in this way be that the ductor and the stroke of the jack independent of the main drive of the Printing press are driven.
- Duct drive and the drive for the stroke of the lifter are not in the closed gear train of the main drive of the printing press integrated, but designed separately and therefore controllable separately.
- the doctor and the lifter each have a separate one controllable drive is assigned. This way it is possible to get a faster one first Provide speed of the ductor and at the end of the return transport of the Color switch off the lifting stroke and a slow speed of the To let the director succeed.
- the separately controllable drives Setting the speed to the respective circumstances, for example the Color consistency, possible.
- a device for performing a method according to claim 4 provides that between the rollers with a high ink layer thickness and the rollers with a smaller one Ink layer thickness for separating the ink transfer at least one disengageable Intermediate roller is located. Through the at least one disengageable intermediate roller one complete separation achieved with the purpose that only the color of the rollers, the one have high ink layer thickness is transported back to the ink fountain.
- a device is used to carry out a method according to claim 5 proposed, in which between the rollers, which are closer to the ink fountain, and the rollers, which are closer to the plate cylinder, for separating the ink transfer there is at least one disengageable intermediate roller.
- This device can be designed in such a way that those closer to the ink fountain Rollers are driven independently of the main drive of the printing press. The closer to Ink fountain rollers have a higher ink layer thickness and this can removed faster thanks to the separate drive using a higher speed will.
- FIG. 1 shows part of a printing unit of a printing press 2, which has an inking unit 1 contains.
- the inking unit 1 consists of an ink fountain 4 filled with ink 28 and Color metering elements 3, which can be designed as eccentrics or knives.
- Color metering elements 3 Through the Setting the color metering elements 3 is determined in which color layer thickness the color is applied to the ductor 6.
- the color is obtained from the ductor 6 by means of a jack 5 removed and placed on the friction roller 7. From there, the color passes over Intermediate rollers 8-17 to the inking rollers 18-21, which the ink during printing apply to the plate cylinder 22, which passes it to the blanket cylinder, which the Color prints on the sheets.
- the invention relates to the cleaning of the inking unit 1.
- the color metering elements 3 were closed, the lifter 5 turned off and the in Ink unit 1 remaining ink printed on waste sheets. Not that way removable residual paint was then removed by washing.
- the ink metering elements 3 are closed, but the lifter 5 continued in its cycle and the ductor also continued to be driven.
- Double arrow 26 represents how the clock transmits the color between the ductor 6 and the friction roller 7.
- the Color transfer made in the reverse direction, the on the Duktor 6th retransferred paint by the closed ink metering elements 3 and thereby being conveyed back into the ink fountain 4.
- the retransfer is particularly useful with respect to the rollers, which are high Color layer thickness can be provided that one or more of Intermediate rollers are designed to be disengageable. This will transfer the color to this Spot interrupted.
- the intermediate rollers 16 and 17 and the Ink application rollers 20 and 21 over many ink transfers with the ink fountain 4 connected. They have a very thin ink layer thickness, and the return of the Color would have to be done over many rollers. For this reason, it may be useful disengageable intermediate rollers 14 and 15 to provide the inking unit in this way to separate.
- adjustment devices are provided, one of which Adjustment device 23 is shown.
- the arrows 24 show the disengagement movement of the Intermediate rollers 14 and 15.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
Description
- 1
- Farbwerk
- 2
- Druckmaschine
- 3
- Farbdosierelemente, z.B. Exzenter
- 4
- Farbkasten
- 5
- Heber
- 6
- Duktor
- 7
- Reiberwalze
- 8 - 17
- Zwischenwalzen
- 11, 14 und 15
- ausrückbare Zwischenwalzen
- 18-21
- Farbauftragswalzen
- 22
- Plattenzylinder
- 23
- Verstellvorrichtung
- 24 Pfeil
- Ausrückbewegung der Zwischenwalzen 14 und 15
- 25 Pfeil
- Ausrückbewegung der Zwischenwalze 11
- 26 Doppelpfeil
- Taktbewegung des Hebers 5
- 27 Pfeile
- Drehrichtung
- 28
- Farbe
Claims (12)
- Verfahren zur Reinigung eines Farbwerks (1) einer Druckmaschine (2), wobei die Farbdosierelemente (3) der Farbzonen des Farbkastens (4) geschlossen werden und ein weiterer Antrieb der Druckmaschine stattfindet,
dadurch gekennzeichnet,
daß ein weiterer Antrieb des Farbwerks (1) einem Rücktransport der Farbe in den Farbkasten (4) dient, indem die Taktbewegung des Hebers (5) zwischen Duktor (6) und Reiberwalze (7) weiter erfolgt, und daß erst nach diesem Rücktransport der Farbe die übliche Reinigung des Farbwerks (1) vorgenommen wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
daß der Duktor (6) und der Takt des Hebers (5) schneller angetrieben werden als die Druckmaschine. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß vor Beendigung des Rücktransports der Farbe der Antrieb des Duktors (6) kurzfristig langsam erfolgt. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
daß vor einem Rücktransport der Farbe eine Auftrennung der Farbübertragung zwischen den Walzen (7 bis 13, 18, 19) mit hoher Farbschichtdicke und den Walzen (16, 17, 20, 21) mit geringer Farbschichtdicke erfolgt. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, daß vor einem Rücktransport der Farbe eine Auftrennung der Farbübertragung zwischen den Walzen (7, 8, 9, 10), die näher beim Farbkasten (4) liegen, und den Walzen (12 bis 21), die näher beim Plattenzylinder (22) liegen, erfolgt. - Verfahren nach Anspruch 5,
dadurch gekennzeichnet,
daß die dem Farbkasten (4) näher liegenden Walzen (7, 8, 9, 10) schneller angetrieben werden als die Druckmaschine. - Verfahren nach einem oder mehreren der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß zusätzlich zum Rücktransport der Farbe, Restfarbe auf Makulaturbögen gedruckt wird und dann erst ein Waschvorgang zur vollständigen Reinigung vorgenommen wird. - Vorrichtung zur Durchführung eines Verfahrens nach einem der Ansprüche 2 bis 7 mit einem Farbwerk (1), das einen Farbkasten (4), Farbdosierelemente (3), einen Heber (5), einen Duktor (6), eine Reiberwalze (7), Zwischenwalzen (8-17) und Farbauftragswalzen (18-20) aufweist,
dadurch gekennzeichnet,
daß der Duktor (6) und der Takt des Hebers (5) unabhängig vom Hauptantrieb der Druckmaschine (2) angetrieben sind. - Vorrichtung nach Anspruch 8,
dadurch gekennzeichnet,
daß dem Duktor (6) und dem Heber (5) jeweils ein separat steuerbarer Antrieb zugeordnet ist. - Vorrichtung zur Durchführung eines Verfahrens nach Anspruch 4 mit einem Farbwerk (1), das einen Farbkasten (4), Farbdosierelemente (3), einen Heber (5), einen Duktor (6), eine Reiberwalze (7), Zwischenwalzen (8-17) und Farbauftragswalzen (18-20) aufweist,
dadurch gekennzeichnet,
daß sich zwischen den Walzen (7 bis 13, 18, 19) mit hoher Farbschichtdicke und den Walzen (16, 17, 20, 21) mit geringer Farbschichtdicke zur Auftrennung der Farbübertragung mindestens eine ausrückbare Zwischenwalze (14, 15) befindet. - Vorrichtung zur Durchführung eines Verfahrens nach Anspruch 5 mit einem Farbwerk (1), das einen Farbkasten (4), Farbdosierelemente (3), einen Heber (5), einen Duktor (6), eine Reiberwalze (7), Zwischenwalzen (8-17) und Farbauftragswalzen (18-20) aufweist,
dadurch gekennzeichnet,
daß sich zwischen den Walzen (7, 8, 9, 10) die naher am Farbkasten (4) liegen und den Walzen (12 bis 21) die näher beim Plattenzylinder (22) liegen zur Auftrennung der Farbübertragung mindestens eine ausrückbare Zwischenwalze (11) befindet. - Vorrichtung nach Anspruch 11 zur Durchführung eines Verfahrens nach Anspruch 6,
dadurch gekennzeichnet,
daß die dem Farbkasten (4) näher liegenden Walzen (7, 8, 9, 10) unabhängig vom Hauptantrieb der Druckmaschine (2) angetrieben sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19708435 | 1997-03-01 | ||
DE19708435A DE19708435C2 (de) | 1997-03-01 | 1997-03-01 | Verfahren zur Reinigung eines Farbwerks einer Druckmaschine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0861723A2 true EP0861723A2 (de) | 1998-09-02 |
EP0861723A3 EP0861723A3 (de) | 1999-05-06 |
EP0861723B1 EP0861723B1 (de) | 2002-09-11 |
Family
ID=7821987
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98101424A Expired - Lifetime EP0861723B1 (de) | 1997-03-01 | 1998-01-28 | Verfahren zur Reinigung eines Farbwerks einer Druckmaschine |
Country Status (4)
Country | Link |
---|---|
US (1) | US6116161A (de) |
EP (1) | EP0861723B1 (de) |
JP (1) | JP4170431B2 (de) |
DE (2) | DE19708435C2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007073834A2 (de) | 2005-12-27 | 2007-07-05 | Manroland Ag | Verfahren zur reinigung von druckplatten |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6099547A (en) | 1997-02-13 | 2000-08-08 | Scimed Life Systems, Inc. | Method and apparatus for minimally invasive pelvic surgery |
SE510460C2 (sv) * | 1997-09-24 | 1999-05-25 | Grafic Team International Swed | Sätt och anordning för rengöring av en gummiklädd cylinder i en offsetpress |
US6895861B2 (en) * | 2003-07-11 | 2005-05-24 | James F. Price | Keyless inking systems and methods using subtractive and clean-up rollers |
US6672211B2 (en) * | 1999-03-03 | 2004-01-06 | James F. Price | Inking systems for printing presses |
JP2002538021A (ja) | 1999-03-03 | 2002-11-12 | ジェイムス, エフ. プライス, | 印刷プレスのためのキーレス・インカ |
JP2007152822A (ja) * | 2005-12-07 | 2007-06-21 | Komori Corp | 印刷機のインキ装置のインキ搬送経路切換え方法及び装置 |
US20080134916A1 (en) * | 2006-12-07 | 2008-06-12 | Heidelberger Druckmaschinen Ag | Printing Press with a Washing Device for an Inking Unit and Method of Removing Ink from an Inking Unit |
CN102649347B (zh) * | 2011-02-26 | 2016-08-03 | 海德堡印刷机械股份公司 | 印刷机中墨盒挠曲的补偿 |
JP5897852B2 (ja) * | 2011-09-12 | 2016-04-06 | 株式会社小森コーポレーション | インキ膜厚分布の補正方法および装置 |
JP5897853B2 (ja) * | 2011-09-12 | 2016-04-06 | 株式会社小森コーポレーション | インキ膜厚分布の形成方法および装置 |
JP6093152B2 (ja) * | 2012-11-12 | 2017-03-08 | 株式会社小森コーポレーション | インキ供給方法およびインキ供給装置 |
JP6093151B2 (ja) * | 2012-11-12 | 2017-03-08 | 株式会社小森コーポレーション | インキ膜厚分布の補正方法および装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1561100A1 (de) * | 1966-12-27 | 1970-02-12 | Planeta Veb Druckmasch Werke | Farbwerk von Rotationsdruckmaschinen |
DE3707695A1 (de) * | 1987-03-11 | 1988-09-22 | Heidelberger Druckmasch Ag | Verfahren zur definierten erzeugung einer dem fortdruck nahen farbverteilung im farbwerk von rotationsdruckmaschinen |
US5447102A (en) * | 1993-04-14 | 1995-09-05 | Heidelberger Druckmaschinen Aktiengesellschaft | Process for operating a printing press |
EP0722834A2 (de) * | 1995-01-21 | 1996-07-24 | MAN Roland Druckmaschinen AG | Verfahren zur Reinigung von Zylindern und Walzen eines Druckwerkes einer Druckmaschine |
DE19511231A1 (de) * | 1995-03-27 | 1996-10-02 | Heidelberger Druckmasch Ag | Einrichtung zum Waschen von Walzen eines Farbwerks von Druckmaschinen |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3651758A (en) * | 1969-12-17 | 1972-03-28 | Moore Business Forms Inc | Ink transfer system |
US3701316A (en) * | 1970-05-18 | 1972-10-31 | Harris Intertype Corp | Ink and dampener form roll interruption for cleaning purposes |
US5178066A (en) * | 1990-09-14 | 1993-01-12 | Heidelberg Harris Inc. | Speed match ductor assembly |
US5213044A (en) * | 1990-11-30 | 1993-05-25 | Como Technologies, Incorporated | Method and apparatus for use in printing |
DE4230090C2 (de) * | 1992-09-09 | 1995-12-07 | Heidelberger Druckmasch Ag | Farbwerk für eine Druckmaschine |
DE4322615C2 (de) * | 1993-07-07 | 1997-10-23 | Heidelberger Druckmasch Ag | Wascheinrichtung für das Farbwerk von Rotationsdruckmaschinen |
DE19617746B4 (de) * | 1996-05-03 | 2005-05-25 | Heidelberger Druckmaschinen Ag | Farbwerk für eine Druckmaschine |
-
1997
- 1997-03-01 DE DE19708435A patent/DE19708435C2/de not_active Expired - Fee Related
-
1998
- 1998-01-28 EP EP98101424A patent/EP0861723B1/de not_active Expired - Lifetime
- 1998-01-28 DE DE59805463T patent/DE59805463D1/de not_active Expired - Fee Related
- 1998-03-02 JP JP04971098A patent/JP4170431B2/ja not_active Expired - Fee Related
- 1998-03-02 US US09/033,523 patent/US6116161A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1561100A1 (de) * | 1966-12-27 | 1970-02-12 | Planeta Veb Druckmasch Werke | Farbwerk von Rotationsdruckmaschinen |
DE3707695A1 (de) * | 1987-03-11 | 1988-09-22 | Heidelberger Druckmasch Ag | Verfahren zur definierten erzeugung einer dem fortdruck nahen farbverteilung im farbwerk von rotationsdruckmaschinen |
US5447102A (en) * | 1993-04-14 | 1995-09-05 | Heidelberger Druckmaschinen Aktiengesellschaft | Process for operating a printing press |
EP0722834A2 (de) * | 1995-01-21 | 1996-07-24 | MAN Roland Druckmaschinen AG | Verfahren zur Reinigung von Zylindern und Walzen eines Druckwerkes einer Druckmaschine |
DE19511231A1 (de) * | 1995-03-27 | 1996-10-02 | Heidelberger Druckmasch Ag | Einrichtung zum Waschen von Walzen eines Farbwerks von Druckmaschinen |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007073834A2 (de) | 2005-12-27 | 2007-07-05 | Manroland Ag | Verfahren zur reinigung von druckplatten |
WO2007073834A3 (de) * | 2005-12-27 | 2007-08-23 | Roland Man Druckmasch | Verfahren zur reinigung von druckplatten |
Also Published As
Publication number | Publication date |
---|---|
US6116161A (en) | 2000-09-12 |
EP0861723B1 (de) | 2002-09-11 |
DE19708435C2 (de) | 2001-05-10 |
JPH10278237A (ja) | 1998-10-20 |
DE59805463D1 (de) | 2002-10-17 |
JP4170431B2 (ja) | 2008-10-22 |
DE19708435A1 (de) | 1998-09-10 |
EP0861723A3 (de) | 1999-05-06 |
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