EP1245386A1 - Verfahren und Vorrichtung zum Erzeugung einer Farbverteilung im Farbwerk von Druckmaschinen - Google Patents
Verfahren und Vorrichtung zum Erzeugung einer Farbverteilung im Farbwerk von Druckmaschinen Download PDFInfo
- Publication number
- EP1245386A1 EP1245386A1 EP02005080A EP02005080A EP1245386A1 EP 1245386 A1 EP1245386 A1 EP 1245386A1 EP 02005080 A EP02005080 A EP 02005080A EP 02005080 A EP02005080 A EP 02005080A EP 1245386 A1 EP1245386 A1 EP 1245386A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inking unit
- ink
- roller
- printing
- inking
- 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
- B41F31/00—Inking arrangements or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2233/00—Arrangements for the operation of printing presses
- B41P2233/10—Starting-up the machine
- B41P2233/11—Pre-inking
Definitions
- the invention relates to a method and an apparatus to generate a color distribution in the inking unit of printing machines according to the preamble of the process or device claim.
- the color to be printed is interacting with an ink fountain and with an ink fountain roller Dosing elements corresponding to the color requirement Layer thicknesses applied on the ink fountain roller.
- the squeegee roller removes ink from the ink fountain roller and via friction and other inking unit rollers and inking rollers applied to a printing form.
- Through the inking rollers and the multitude of cleavage points becomes the one in the upper part of the Ink layer located on a few microns thick Split the ink layer on the application rollers.
- Through several Ink roller is a stencil-free and independent of the subject
- the printing form can be colored. By number of rollers as well as arrangement of the rollers can also in this way large format printed matter over the entire format width and Printing length can be optimally colored.
- portion of printing / non-printing area takes the ink layer thickness from the upper part of the inking unit to the inking rollers down.
- portion of printing / non-printing area takes the ink layer thickness from the upper part of the inking unit to the inking rollers down.
- high percentage printing area is the color layer thickness in the upper part of the inking unit larger compared to the ink layer thicknesses in the same part of the inking system with a "light" subject (small amount of printing area).
- the Inking ink removed and then the inking unit with the one provided for the respective print job Color to be filled. Removing the ink from one previous print job can be arranged in the inking unit Washing devices (squeegee plus spray device) respectively. Possibly. additional manual intervention is necessary.
- DE 40 13 740 A1 describes an offset printing machine as well as a method for quickly reaching the production status, in which the application rollers continuously or temporarily during the ink run-in or before the start of printing during a stop that interrupts the production process are employed on the printing form. This takes the printing form Color on, so that even during the stop or during the Color flow is interrupted.
- DE 33 38 143 C2 describes a method for generating a ink layer thicknesses corresponding to the printed image in the inking unit known a printing press, in which the inking unit at parked inking rollers and running lifter with ink is filled. First of all, this is done with a uniform setting of color dosing elements across the format width. At the start of printing, there is one to be executed Print order (the subject) corresponding setting of the color metering elements (of the color profile) for use.
- DE 44 36 953 C1 describes a method for production an ink layer thickness distribution on inking unit rollers Inking unit of a printing press, in the case of an order change by appropriate setting of the color metering elements the amount of ink in the inking unit except for one Basic quantity is mined. Based on this basic amount of color then the color metering device to the profile of the new one Print job set and the inking unit with this Setting a predetermined number of machine revolutions preloaded.
- the object of the present invention is therefore a method and an apparatus for performing the method according to the preamble of the process or device claim to expand so that a differentiated on the color flow conditions of the print job to be executed adapted pre-coloring with the corresponding build-up of the color layer is achieved.
- the roller of the inking unit at least once separated and then again - by switching off the roller separation - is closed.
- a color-free, i.e. inking unit previously emptied by washing can be provided that first the color metering elements on a uniform Position, the lifter is employed, i.e. run a certain number of bars and then again is turned off to the entire inking unit with a predetermined Fill the amount of paint. Then there would be at this Embodiment of the invention switched on the inking unit separation become, i.e. the roller of the inking unit would be on the designated positions by the assigned actuating means to be interrupted.
- the setting is then carried out of the color metering elements to those for the future print job intended profile, i.e. it happens in prepress or zonal profile determined by template scanning Attitude.
- the jack is turned a few revolutions of the cylinder. To When the inking unit is removed, the printing process begins.
- the present invention provides that at the end of the previous print job the inking unit separation is switched on. Then the Ink metering elements. The jack becomes a certain one Number of clocks run so that the upper part of the Ink unit emptied by the resulting color return. Thereupon the color dosing elements on the for the next print job provided profile set, for example to the preset values according to prepress or Printing form scanning. A few cylinder revolutions before printing begins the jack is turned off. Before printing begins the inking unit separation is then canceled, i.e. the interrupted Single drum roller is closed again. Then the begins Printing operation by turning on the inking rollers as well Place the blanket cylinder on the printing form cylinder.
- the present invention is applicable to an inking unit which has at least one inking unit separation, i.e. the Roller of the inking unit is at least at one point assigned actuators can be interrupted. Instructs the inking unit several separation points arranged one after the other in the color flow direction on, can be applied by applying the invention achieve even more differentiated color layer thickness gradation. This would result in the inking unit separation being completely switched off the inking unit with an average amount of ink filled and then the first (lowest) inking unit separation switched on. Then there would be further lifter acts and corresponding dosing element settings a color quantity introduced into the inking unit section above this inking unit separation.
- the method used is a color layer thickness distribution generated in the lower and especially the applicator rollers comprehensive part of the inking unit a part of the printing Area of the future print job almost independent Layer thickness creates, whereas in the upper, the color metering elements facing parts of the inking unit a layer thickness is generated, which depends on the color requirement the printing form (subject - proportion of printing area) can be.
- a layer thickness gradient arises even during production, so that the invention a very differentiated adaptation to the color flow situation of the Production printing enabled. As a result, waste is largely eliminated avoided.
- FIG. 7 shows an inking unit, in which of an ink fountain 1 Paint via an ink fountain roller 2, a siphon roller 3 upper part 4 of an inking unit is fed.
- a controller 16 can be actuated via assigned actuating means 11.
- the Release, or blocking the movement of the jack 3 takes place on the part of the controller 16 via the actuating means 12.
- the ink passes over the rollers of the upper inking unit 4 over a total of two single drum rollers to those with the printing form cylinder 9 interacting application rollers.
- In the direction of rotation of the Printing form cylinder 9 is in the lower part 6 of the inking unit Dampening unit 7 assigned.
- the upper part is 4 of the inking unit from the lower part 6 of the inking unit by total two ink roller separations 5 separable.
- the inking unit separation 5 is by associated adjusting means 13 on the part of Control 16 operable.
- a washing device 8 is assigned to the bridge roller by which the ink on this roller can be picked up and so the entire roller of the upper and lower inking unit 4, 6 can be cleaned.
- the washing device 8 are on the part of the controller 16 via assigned adjusting means 14 actuated.
- the controller 16 over Adjusting means 15 the application rollers of the lower inking unit 6, the dampening unit 7 and the pressure cylinders 9, 10 switchable, i.e. the corresponding rollers / cylinders can be turned off.
- Figure 1 shows the ink flow situation in the inking unit 1-6 during of pressure, i.e. the application rollers of the lower inking unit part 6 are employed on the printing form cylinder 9, the Printing unit cylinders 9, 10 are switched to pressure Inking unit separation 5 is switched off.
- Point as indicated the upper inking rollers 2, 3, 4 have a higher layer thickness on than the rollers of the lower inking unit 6.
- the layer thicknesses in the upper part 4 of the inking unit depend on the subject from, i.e. of the proportion of printing area on the printing form cylinder 9.
- In the lower part of the inking unit 6 there is one color layer thickness largely independent of subject.
- inking unit 1 - 6 Starting from an empty, i.e. for example through the Washing device 8 cleaned inking unit 1 - 6 should do this now pre-filled with ink when the inking rollers are turned off become.
- the lifter 3 between the ink fountain roller 2 and connected to the first friction roller of the upper inking unit 4 the ink metering elements of the ink fountain 1 take a predetermined one defined position to the ink fountain roller 2 (Fig. 2).
- the Figure 3 indicated situation i.e. all rollers of the Inking units 1 - 6 have a certain ink layer thickness.
- the number of machine revolutions, the setting of the color metering elements on color box 1 and the number of lifter cycles 3 is chosen (empirically or by model calculation), that the color layer thickness takes the desired value.
- the upper inking unit part 4 is filled with paint, so that there is a largely the later printing conditions sets the appropriate ink layer thickness. This The situation is shown in FIG. 5.
- Invention When converting from a completed job to a new order the inking unit 1 - 6 not washed or completely emptied, so according to one embodiment Invention provided that after turning off the inking rollers from the plate cylinder 9 ( Figure 1 -> Figure 6) simultaneously the inking unit separation 5 is switched. So is through now Closing the ink metering elements in ink fountain 1 and continuing Lifter 3 the upper part 4 of the inking unit can be emptied, so that the color layer thickness - as indicated in Figure 6 - in upper inking unit 4 removed - as shown in FIG. 5 - can be. Then the upper part of the Inking unit 4 by setting an intended color profile on ink fountain 1 and operating the jack 3. After the im upper inking unit 4 the ink rollers the intended layer thickness have, is switched by switching the inking unit 5 Ink flow closed and the application rollers can (as in Figure 1 shown) are placed on the printing form cylinder 9.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Ink Jet (AREA)
- Dot-Matrix Printers And Others (AREA)
- Rotary Presses (AREA)
Abstract
Description
- Fig. 1 bis 6
- ein Farbwerk mit Farbwerktrennung und auf den Farbwerkwalzen befindlichen Farbschichtdicken, und
- Fig. 7
- eine das erfindungsgemäße Verfahren ausführende Steuerung in Verbindung mit einem Farbwerk.
- 1
- Farbkasten
- 2
- Farbkastenwalze
- 3
- Heber
- 4
- Farbwerk (oberer Teil)
- 5
- Farbwerktrennung
- 6
- Farbwerk (unterer Teil)
- 7
- Feuchtwerk
- 8
- Waschvorrichtung (Farbwerk 1 - 6)
- 9
- Druckformzylinder
- 10
- Gummituchzylinder
- 11
- Stellmittel (Farbdosierelemente Farbkasten 1)
- 12
- Stellmittel (Heberwalze 3)
- 13
- Stellmittel (Farbwerktrennung 5)
- 14
- Stellmittel (Waschvorrichtung 8)
- 15
- Stellmittel (Farbauftragwalzen, Feuchtwerk 7, Druckformzylinder 9, Gummituchzylinder 10)
- 16
- Steuerung
Claims (6)
- Verfahren zum Erzeugen einer Schichtdickenverteilung im Farbwerk einer Druckmaschine, insbesondere Bogenoffsetdruckmaschine, bei welchem während eines Einlaufvorganges bei laufender Maschine und vom Druckformzylinder abgestellten Farbauftragwalzen über mit einer Farbkastenwalze zusammenwirkende Farbdosierelemente und angetriebener Heberwalze Farbe in das Farbwerk gefördert wird,
dadurch gekennzeichnet, dass während des Einlaufvorganges der Walzenzug des Farbwerkes durch eine Farbwerktrennung wenigstens zeitweise unterbrochen ist. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass bei leerem Farbwerk zunächst eine vorgegebene Farbmenge in das Farbwerk gefördert wird, dass der Walzenzug durch die Farbwerktrennung unterbrochen wird, dass daraufhin der obere, der Farbkastenwalze zugewandte Teil des Farbwerkes mit einer zusätzlichen Farbmenge gefüllt wird, und dass nach dem Verbinden des Walzenzuges durch die Farbwerktrennung der Druck beginnt. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass bei einem vom vorherigen Druckauftrag mit Farbe gefüllten Farbwerk der Walzenzug durch die Farbwerktrennung unterbrochen wird, dass der obere Teil des Farbwerkes nach Abfördern von Druckfarbe mit einer vorgegebenen Farbmenge entsprechend dem auszuführenden Druckauftrag gefüllt wird, und dass nach Verbinden des Walzenzuges durch die Farbwerktrennung der Druck aufgenommen wird. - Verfahren nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet, dass die bei durch Farbwerktrennung unterbrochenem Walzenzug eingebrachte Farbmenge mit einer für den auszuführenden Druckauftrag vorgesehen Einstellung der Farbdosierelemente zugeführt wird. - Verfahren nach Anspruch 3,
dadurch gekennzeichnet, dass das Abfördern von Druckfarbe durch Schließen der Dosierelemente bei laufendem Heber erfolgt. - Vorrichtung zum Erzeugen einer Farbschichtdickenverteilung im Farbwerk einer Druckmaschine, insbesondere Bogenoffsetdruckmaschine, mit einer Farbkastenwalze, mit der Farbkastenwalze zusammenwirkenden Dosierelementen, einer Heberwalze, einem durch eine Farbwerktrennung aufteilbaren Walzenzug, mit dem Druckformzylinder zusammenwirkenden und an diesen an- und abstellbaren Farbauftragwalzen sowie einer Steuerung, welche über Stellmittel mit den Farbdosierelementen, dem Heber, der Farbwerktrennung, den Auftragwalzen sowie den Druckwerkszylindern in Verbindung steht, zur Durchführung des Verfahrens nach Anspruch 1,
dadurch gekennzeichnet, dass durch die Steuerung (16) während eines Farbeinlaufes die Farbwerktrennung (5) wenigstens zeitweise betätigbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10115121A DE10115121B4 (de) | 2001-03-27 | 2001-03-27 | Verfahren und Vorrichtung zur Erzeugung einer Farbverteilung im Farbwerk von Druckmaschinen |
DE10115121 | 2001-03-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1245386A1 true EP1245386A1 (de) | 2002-10-02 |
EP1245386B1 EP1245386B1 (de) | 2005-11-30 |
Family
ID=7679275
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02005080A Expired - Lifetime EP1245386B1 (de) | 2001-03-27 | 2002-03-07 | Verfahren und Vorrichtung zum Erzeugung einer Farbverteilung im Farbwerk von Druckmaschinen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1245386B1 (de) |
AT (1) | ATE311291T1 (de) |
DE (2) | DE10115121B4 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1449659A1 (de) * | 2003-02-21 | 2004-08-25 | MAN Roland Druckmaschinen AG | Verfahren und Vorrichtung zur Farbwerksteuerung |
EP1952987A2 (de) | 2004-08-13 | 2008-08-06 | manroland AG | Verfahren zum Steuern einer Verarbeitungsmaschine für Bogenmaterial |
WO2009103397A1 (de) * | 2008-02-19 | 2009-08-27 | Manroland Ag | Verfahren zum einfärben einer druckform in einer verarbeitungsmaschine |
EP1342573B1 (de) * | 2002-03-06 | 2011-08-24 | manroland AG | Verfahren und Vorrichtung zur Farbzufuhrsteuerung |
WO2022128283A1 (en) * | 2020-12-16 | 2022-06-23 | Agfa Offset Bv | Lithographic printing press make-ready method |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10225244B4 (de) * | 2002-06-07 | 2016-02-04 | Koenig & Bauer Ag | Verfahren zum Anfahren des Fortdrucks nach einer Druckunterbrechung |
DE10329427B4 (de) * | 2003-07-01 | 2007-02-15 | Koenig & Bauer Ag | Verfahren zum Betrieb eines Farbwerks |
DE102004050724B4 (de) * | 2004-10-19 | 2013-07-25 | manroland sheetfed GmbH | Verfahren zum Betreiben eines Farbwerks einer Druckmaschine sowie Farbwerk |
DE102005031317B4 (de) * | 2005-07-05 | 2017-05-24 | manroland sheetfed GmbH | Verfahren zur Aufrechterhaltung einer Farbverteilung im Farbwerk von Druckmaschinen |
DE102006026658A1 (de) * | 2005-12-27 | 2007-07-05 | Man Roland Druckmaschinen Ag | Vorauslaufende Walzenabstellung bei Druckformwechsel |
DE102009018155A1 (de) * | 2009-04-21 | 2010-11-11 | Technotrans Ag | Waschanlage für Druckmaschine |
DE102010024011A1 (de) | 2010-06-16 | 2011-12-22 | Technotrans Ag | Traversierende Farbkastenreinigung |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3338143A1 (de) | 1983-10-20 | 1985-05-09 | Roland Man Druckmasch | Farbwerksvoreinstellung |
DE3640295A1 (de) | 1986-04-21 | 1987-10-22 | Polygraph Leipzig | Verfahren zum teilweisen entfernen von farbe aus dem farbwerk |
DE3707695A1 (de) | 1987-03-11 | 1988-09-22 | Heidelberger Druckmasch Ag | Verfahren zur definierten erzeugung einer dem fortdruck nahen farbverteilung im farbwerk von rotationsdruckmaschinen |
DE4013740A1 (de) | 1989-06-19 | 1991-01-03 | Heidelberger Druckmasch Ag | Offset-druckmaschine sowie verfahren zum schnellen erreichen des fortdruckzustandes |
DE4436953C1 (de) | 1994-10-15 | 1996-05-15 | Roland Man Druckmasch | Verfahren zur Erzeugung einer Farbschichtdickenverteilung auf Farbwerkwalzen eines Farbwerkes einer Druckmaschine |
EP1010527A1 (de) * | 1998-12-11 | 2000-06-21 | Koenig & Bauer Aktiengesellschaft | Verfahren zum Einstellen eines Fortdruckfarbprofils |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1243695B (de) * | 1964-10-27 | 1967-07-06 | Adamovske Strojirny Np | Farbwerk fuer Druckmaschinen |
DE1561100A1 (de) * | 1966-12-27 | 1970-02-12 | Planeta Veb Druckmasch Werke | Farbwerk von Rotationsdruckmaschinen |
DE4439144C2 (de) * | 1994-11-03 | 1997-04-30 | Roland Man Druckmasch | Farbwerk einer Rotationsoffsetdruckmaschine |
DE10000903A1 (de) * | 1999-02-05 | 2000-08-10 | Heidelberger Druckmasch Ag | Verfahren zum Betrieb einer Druckmaschine und Druckmaschine zur Durchführung des Verfahrens |
-
2001
- 2001-03-27 DE DE10115121A patent/DE10115121B4/de not_active Expired - Fee Related
-
2002
- 2002-03-07 EP EP02005080A patent/EP1245386B1/de not_active Expired - Lifetime
- 2002-03-07 AT AT02005080T patent/ATE311291T1/de active
- 2002-03-07 DE DE50205076T patent/DE50205076D1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3338143A1 (de) | 1983-10-20 | 1985-05-09 | Roland Man Druckmasch | Farbwerksvoreinstellung |
DE3640295A1 (de) | 1986-04-21 | 1987-10-22 | Polygraph Leipzig | Verfahren zum teilweisen entfernen von farbe aus dem farbwerk |
DE3707695A1 (de) | 1987-03-11 | 1988-09-22 | Heidelberger Druckmasch Ag | Verfahren zur definierten erzeugung einer dem fortdruck nahen farbverteilung im farbwerk von rotationsdruckmaschinen |
DE4013740A1 (de) | 1989-06-19 | 1991-01-03 | Heidelberger Druckmasch Ag | Offset-druckmaschine sowie verfahren zum schnellen erreichen des fortdruckzustandes |
DE4436953C1 (de) | 1994-10-15 | 1996-05-15 | Roland Man Druckmasch | Verfahren zur Erzeugung einer Farbschichtdickenverteilung auf Farbwerkwalzen eines Farbwerkes einer Druckmaschine |
EP1010527A1 (de) * | 1998-12-11 | 2000-06-21 | Koenig & Bauer Aktiengesellschaft | Verfahren zum Einstellen eines Fortdruckfarbprofils |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1342573B1 (de) * | 2002-03-06 | 2011-08-24 | manroland AG | Verfahren und Vorrichtung zur Farbzufuhrsteuerung |
EP1449659A1 (de) * | 2003-02-21 | 2004-08-25 | MAN Roland Druckmaschinen AG | Verfahren und Vorrichtung zur Farbwerksteuerung |
EP1952987A2 (de) | 2004-08-13 | 2008-08-06 | manroland AG | Verfahren zum Steuern einer Verarbeitungsmaschine für Bogenmaterial |
EP1952987A3 (de) * | 2004-08-13 | 2011-03-16 | manroland AG | Verfahren zum Steuern einer Verarbeitungsmaschine für Bogenmaterial |
WO2009103397A1 (de) * | 2008-02-19 | 2009-08-27 | Manroland Ag | Verfahren zum einfärben einer druckform in einer verarbeitungsmaschine |
WO2022128283A1 (en) * | 2020-12-16 | 2022-06-23 | Agfa Offset Bv | Lithographic printing press make-ready method |
Also Published As
Publication number | Publication date |
---|---|
DE10115121B4 (de) | 2005-11-17 |
DE10115121A1 (de) | 2002-10-17 |
ATE311291T1 (de) | 2005-12-15 |
DE50205076D1 (de) | 2006-01-05 |
EP1245386B1 (de) | 2005-11-30 |
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