EP1245386A1 - Procédé et dispositif pour obtenir une distribution d'encre dans une machine à imprimer - Google Patents

Procédé et dispositif pour obtenir une distribution d'encre dans une machine à imprimer Download PDF

Info

Publication number: EP1245386A1
Authority: EP; European Patent Office
Prior art keywords: inking unit; ink; roller; printing; inking
Prior art date: 2001-03-27
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

EP02005080A

Other languages

German (de)

English (en)

Other versions

EP1245386B1 (fr

Inventor

Karl-Heinz Franz

Peter Schramm

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.)

2001-03-27

Filing date

2002-03-07

Publication date

2002-10-02

2002-03-07 Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG

2002-10-02 Publication of EP1245386A1 publication Critical patent/EP1245386A1/fr

2005-11-30 Application granted granted Critical

2005-11-30 Publication of EP1245386B1 publication Critical patent/EP1245386B1/fr

2022-03-07 Anticipated expiration legal-status Critical

Status 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
- 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)

EP02005080A 2001-03-27 2002-03-07 Procédé et dispositif pour obtenir une distribution d'encre dans une machine à imprimer Expired - Lifetime EP1245386B1 (fr)

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 (fr)	2002-10-02
EP1245386B1 EP1245386B1 (fr)	2005-11-30

Family

ID=7679275

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP02005080A Expired - Lifetime EP1245386B1 (fr)	2001-03-27	2002-03-07	Procédé et dispositif pour obtenir une distribution d'encre dans une machine à imprimer

Country Status (3)

Country	Link
EP (1)	EP1245386B1 (fr)
AT (1)	ATE311291T1 (fr)
DE (2)	DE10115121B4 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1449659A1 (fr) *	2003-02-21	2004-08-25	MAN Roland Druckmaschinen AG	Méthode et appareil de réglage du système d'encrage
EP1952987A2 (fr)	2004-08-13	2008-08-06	manroland AG	Procédé de commande d'une machine de traitement pour matériau en feuilles
WO2009103397A1 (fr) *	2008-02-19	2009-08-27	Manroland Ag	Procédé pour encrer une forme d'impression dans une machine de traitement
EP1342573B1 (fr) *	2002-03-06	2011-08-24	manroland AG	Procédé et dispositif pour le contrôle d'alimentation en encre
WO2022128283A1 (fr) *	2020-12-16	2022-06-23	Agfa Offset Bv	Procédé de préparation de presse d'impression lithographique

Families Citing this family (7)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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 (fr) *	1998-12-11	2000-06-21	Koenig & Bauer Aktiengesellschaft	Méthode pour régler le profil d'encrage pour l'impression du tirage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
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 AT AT02005080T patent/ATE311291T1/de active
- 2002-03-07 EP EP02005080A patent/EP1245386B1/fr not_active Expired - Lifetime
- 2002-03-07 DE DE50205076T patent/DE50205076D1/de not_active Expired - Lifetime

Patent Citations (6)

* Cited by examiner, † Cited by third party
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 (fr) *	1998-12-11	2000-06-21	Koenig & Bauer Aktiengesellschaft	Méthode pour régler le profil d'encrage pour l'impression du tirage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP1342573B1 (fr) *	2002-03-06	2011-08-24	manroland AG	Procédé et dispositif pour le contrôle d'alimentation en encre
EP1449659A1 (fr) *	2003-02-21	2004-08-25	MAN Roland Druckmaschinen AG	Méthode et appareil de réglage du système d'encrage
EP1952987A2 (fr)	2004-08-13	2008-08-06	manroland AG	Procédé de commande d'une machine de traitement pour matériau en feuilles
EP1952987A3 (fr) *	2004-08-13	2011-03-16	manroland AG	Procédé pour contrôler une machine de traitement de feuilles
WO2009103397A1 (fr) *	2008-02-19	2009-08-27	Manroland Ag	Procédé pour encrer une forme d'impression dans une machine de traitement
WO2022128283A1 (fr) *	2020-12-16	2022-06-23	Agfa Offset Bv	Procédé de préparation de presse d'impression lithographique

Also Published As

Publication number	Publication date
DE50205076D1 (de)	2006-01-05
ATE311291T1 (de)	2005-12-15
DE10115121A1 (de)	2002-10-17
DE10115121B4 (de)	2005-11-17
EP1245386B1 (fr)	2005-11-30

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