EP0799697B1 - Process for controlling the ductor roller in printing presses - Google Patents

Process for controlling the ductor roller in printing presses Download PDF

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Publication number
EP0799697B1
EP0799697B1 EP97104834A EP97104834A EP0799697B1 EP 0799697 B1 EP0799697 B1 EP 0799697B1 EP 97104834 A EP97104834 A EP 97104834A EP 97104834 A EP97104834 A EP 97104834A EP 0799697 B1 EP0799697 B1 EP 0799697B1
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EP
European Patent Office
Prior art keywords
roller
print
ductor
command
event
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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
Application number
EP97104834A
Other languages
German (de)
French (fr)
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EP0799697A3 (en
EP0799697A2 (en
Inventor
Rudi Junghans
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.)
Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP0799697A2 publication Critical patent/EP0799697A2/en
Publication of EP0799697A3 publication Critical patent/EP0799697A3/en
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/10—Tripping devices or stop-motions for starting or stopping operation of damping or inking units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/14—Applications of messenger or other moving transfer rollers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/32—Means to vary the time of contact of one or more rollers in an ink train

Definitions

  • the invention relates to a method for controlling a lifting roller in a Printing machine with an inking unit during a print interruption according to the preamble of claim 1.
  • the known EP 0 645 242 A1 shows a method for controlling the sheet entry on printing presses, in which the angular position of the lifting drive is taken into account.
  • This angular position can, for. B. in digital form or by means of sensors to feed the next sheet to be printed in a certain rhythm.
  • a lifting roller drive is not stopped here and also not after a command Pressure on "switched on.
  • a printing press described in US Pat. No. 3,170,397 also remains in operation if whose ink fountain drive is stopped.

Landscapes

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

Description

Die Erfindung bezieht sich auf ein Verfahren zur Steuerung einer Hebwalze in einer Druckmaschine mit einem Farbwerk bei einer Druckunterbrechung nach dem Oberbegriff von Anspruch 1.The invention relates to a method for controlling a lifting roller in a Printing machine with an inking unit during a print interruption according to the preamble of claim 1.

Aus der DE 39 35 215 A1 ist ein Heberfarbwerk für schnellaufende Rotationsdruckmaschinen bekannt, bei dem das Verhältnis der Antriebsdrehzahl des Heberkurvengetriebes zur Drehzahl des Druckplattenzylinders einstellbar ist. Hierzu wird das Heberkurvengetriebe mittels Elektromotor angetrieben, so daß ein beliebiger Hebertakt zur Maschinenumdrehung einstellbar ist. Weiterhin ist aus dieser Schritt bekannt, den Antrieb der Farbkastenwalzedrehzahl einstellbar auszubilden, so daß auch hierdurch eine Regelung der in das Farbwerk zu transportierenden Farbmenge durchgeführt werden kann.DE 39 35 215 A1 describes a lifter inking unit for high-speed printing Rotary printing machines known in which the ratio of the drive speed of the Lift cam gear is adjustable to the speed of the pressure plate cylinder. For this the lift cam gear is driven by an electric motor, so that a any lifting cycle for machine rotation is adjustable. Furthermore is off this step is known, the drive of the ink fountain roller speed adjustable form, so that this also regulates the in the inking unit transporting amount of paint can be carried out.

Die bekannte EP 0 645 242 A1 zeigt ein Verfahren zur Steuerung des Bogeneinlaufs an Druckmaschinen, bei dem die Winkelstellung des Heberantriebs berücksichtigt wird. Diese Winkelstellung kann z. B. in digitaler Form oder mittels Sensoren erfaßt werden, um den nächsten zu bedruckenden Bogen in bestimmtem Rhythmus zuzuführen. Ein Hebwalzenantrieb wird hierbei nicht stillgesetzt und auch nicht nach einem Kommando

Figure 00010001
Druck an" zugeschaltet.The known EP 0 645 242 A1 shows a method for controlling the sheet entry on printing presses, in which the angular position of the lifting drive is taken into account. This angular position can, for. B. in digital form or by means of sensors to feed the next sheet to be printed in a certain rhythm. A lifting roller drive is not stopped here and also not after a command
Figure 00010001
Pressure on "switched on.

Beide Schritten geben jedoch keinen Hinweis darauf, wie die im Farbwerk vorhandene Farbmenge beeinflußt wird, wenn z. B. mehrere nacheinander folgende Druckunterbrechungen und Wiederanfahrvorgänge der Druckmaschine erforderlich sind. Hier kann je nach Hebwalzenstellung und gewähltem Hebertakt ein Über- oder Unterfärben der Druckplatte auftreten. Ist z. B. ein Hebertakt von 12 zu 1 bei geringem Farbbedarf eingestellt, so könnte bei ungünstiger Stellung der Hebwalze ein Unterfärben des 12. Druckbogens eintreten. However, both steps give no indication of how the inking unit works existing amount of color is affected when z. B. several successive Interruptions in printing and restarting of the press are required are. Depending on the lifting roller position and the selected lifting cycle, an over or Underdyeing of the printing plate can occur. Is z. B. a lifter clock of 12 to 1 low ink requirement, so if the lifting roller is in an unfavorable position the 12th sheet is under-colored.

Ferner ist in der GB 2 193 926 A zwar das Stillsetzen einer Heberwalze beschrieben, jedoch in keinem Zusammenhang mit Druckunterbrechungen.Furthermore, in GB 2 193 926 A, the stopping of a lifting roller is described, however not in connection with print interruptions.

Auch eine in der US 3,170,397 beschriebene Druckmaschine bleibt in Betrieb, wenn deren Farbkastenantrieb stillgesetzt wird.A printing press described in US Pat. No. 3,170,397 also remains in operation if whose ink fountain drive is stopped.

Ausgehend von diesen Gegebenheiten ist es die Aufgabe der vorliegenden Erfindung ein Verfahren zur Steuerung der Zyklusphase der Hebwalze in Abhängigkeit vom Kontaktzeitpunkt zur Farbkastenwalze anzugeben, mittels welchem eine gleichmäßige Farbgebung nach einer Druckunterbrechung erreicht wird.Based on these facts, it is the task of the present Invention a method for controlling the cycle phase of the lifting roller in Depending on the time of contact with the ink fountain roller, use which achieves a uniform color after a print pause becomes.

Die Aufgabe wird durch ein Verfahren mit den Merkmalen des Anspruches 1 gelöst.The object is achieved by a method having the features of claim 1.

Das erfindungsgemäße Verfahren zur Steuerung einer Hebwalze in einer Druckmaschine mit einem Farbwerk bei einer Druckunterbrechung zeichnet sich durch folgende Verfahrensschritte aus:

  • einem Kommando "Druck ab" oder "Notstop"
  • die zu diesem Zeitpunkt erreichte zyklusbezogene Wegstellung/Phasenlage des Hebwalzenantriebes wird ermittelt,
  • der Hebwalzenantrieb wird stillgesetzt,
  • bei einem Kommando Druck an" wird der Hebwalzenantrieb mit der beim Kommando Druck ab" oder Notstop" erreichten zyklusbezogenen Wegstellung/Phasenlage zugeschaltet` so daß ein zuvor eingestellter Hebwalzenzyklus nach der Druckunterbrechung fortgesetzt und ein in dem Farbwerk befindlicher Farbvorrat unverändert aufrechterhalten wird, wobei bei dem Kommando Druck ab" oder Notstop" die Farbkastenwalze stillgesetzt und bei dem Kommando Druck an" wieder angetrieben wird.
The method according to the invention for controlling a lifting roller in a printing press with an inking unit when printing is interrupted is characterized by the following method steps:
  • a command "print off" or "emergency stop"
  • the cycle-related position / phase position of the lifting roller drive reached at this time is determined,
  • the lifting roller drive is stopped,
  • on a command Pressure on "is the lift roller drive with the command Print from "or Emergency stop "reached cycle-related position / phase position activated" so that a previously set lifting roller cycle is continued after the print interruption and an ink supply in the inking unit is maintained unchanged, with the command Print from "or Emergency stop "the ink fountain roller stopped and at the command Pressure on "is driven again.

Mit diesem Verfahren wird erreicht, daß nach einer Druckunterbrechung immer der gleiche Hebwalzenzyklus fortgesetzt wird, der zuvor eingestellt wurde. Sind z. B. bei einem Zyklus von 12 zu 1 bereits sieben Plattenzylinderumdrehungen erfolgt, so wird der Hebwalzenzyklus bei Druck an" nach fünf Plattenzylinderumdrehungen eine Hebwalzenbewegung zur Farbkastenwalze hin ausführen. Hierdurch wird der im Farbwerk befindliche Farbvorrat unverändert aufrecht erhalten, so daß ein Über- oder Unterfärben auch nach mehrmaliger Druckunterbrechung ausgeschlossen ist.With this method it is achieved that after a pressure interruption, the same lifting roller cycle that was previously set is always continued. Are z. B. seven plate cylinder revolutions already take place in a cycle of 12 to 1, the lifting roller cycle is at Print on "after five plate cylinder revolutions perform a lifting roller movement towards the ink fountain roller. This maintains the ink supply in the inking unit unchanged, so that over- or under-dyeing is excluded even after repeated interruptions in printing.

Claims (2)

  1. Method for controlling a ductor roller in a printing machine having an inking unit in the event of a printing interruption, characterized by the following method steps:
    a "print off" or "emergency stop" command,
    the cycle-related travel position/phase relationship reached at this moment by the ductor-roller drive is determined,
    the ductor-roller drive is stopped,
    in the event of a "print on" command, the ductor-roller drive having the cycle-related travel position/phase relationship reached in the event of the "print off" or "emergency stop" command is switched on, so that, after the printing interruption, a previously set ductor-roller cycle is continued and an ink supply located in the inking unit is maintained unchanged, the ink fountain roller being stopped in the event of the "print off" or "emergency stop" command and being driven again in the event of the "print on" command.
  2. Method according to Claim 1, characterized by a further method step following the second method step and preceding the third method step:
    the ductor roller is thrown onto a downstream distributor roller.
EP97104834A 1996-04-03 1997-03-21 Process for controlling the ductor roller in printing presses Expired - Lifetime EP0799697B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19613360 1996-04-03
DE19613360A DE19613360A1 (en) 1996-04-03 1996-04-03 Process for controlling the lifting roller in printing machines

Publications (3)

Publication Number Publication Date
EP0799697A2 EP0799697A2 (en) 1997-10-08
EP0799697A3 EP0799697A3 (en) 1998-03-18
EP0799697B1 true EP0799697B1 (en) 1999-10-27

Family

ID=7790391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97104834A Expired - Lifetime EP0799697B1 (en) 1996-04-03 1997-03-21 Process for controlling the ductor roller in printing presses

Country Status (6)

Country Link
US (1) US5845576A (en)
EP (1) EP0799697B1 (en)
JP (1) JPH1029300A (en)
CN (1) CN1091034C (en)
CZ (1) CZ292637B6 (en)
DE (2) DE19613360A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19819651A1 (en) * 1998-05-02 1999-11-04 Roland Man Druckmasch Process for starting up production in a sheet-fed printing press and corresponding control
DE19834784A1 (en) * 1998-08-01 2000-02-03 Koenig & Bauer Ag Process and device for maintaining a color profile close to production
DE29901697U1 (en) * 1999-02-01 2000-07-13 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Inking unit in a printing press
DE10039279A1 (en) * 1999-09-09 2001-03-15 Heidelberger Druckmasch Ag Roller for printers has non-metal structured surface and forms a slip or siphon roller
US6526888B2 (en) * 2000-12-01 2003-03-04 Heidelberger Druckmaschinen Ag Reduced vibration printing press and method
DE10114250A1 (en) * 2001-03-22 2002-09-26 Fischer & Krecke Gmbh & Co printing process
JP4128866B2 (en) * 2002-12-26 2008-07-30 株式会社小森コーポレーション Ink supply amount control method and apparatus for printing press
JP4040968B2 (en) * 2002-12-26 2008-01-30 株式会社小森コーポレーション Ink supply amount control method and apparatus for printing press
JP4638685B2 (en) * 2003-06-10 2011-02-23 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト Method of metering dampening water during printing on an offset press
JP2006272750A (en) * 2005-03-29 2006-10-12 Aimaa Planning Kk Ink moving divided roller unit and printing machine
DE102009018476A1 (en) 2008-05-15 2009-11-19 Heidelberger Druckmaschinen Ag Phase-correct engagement of different rotating cylinders
EP2517883B1 (en) * 2011-04-28 2018-10-17 Heidelberger Druckmaschinen AG Method for operating a printing machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170397A (en) * 1962-10-09 1965-02-23 Orville V Dutro Ink fountain and ductor roll drive
DD222830A1 (en) * 1983-12-12 1985-05-29 Polygraph Leipzig METHOD AND DEVICE FOR ADDITIONALLY APPLYING PRINTING COLOR
DD221690A1 (en) * 1983-12-22 1985-05-02 Polygraph Leipzig ADJUSTMENT AND STOPPING DEVICE FOR COLOR WORKING POWERS IN PRINTING MACHINES
US4524692A (en) * 1984-04-18 1985-06-25 Didde Graphic Systems Corporation Electronic ink flow control for printing
DE3436047A1 (en) * 1984-07-14 1986-04-03 Peter 8109 Wallgau Florjancic Receptacle for audio tape cassettes
GB2193926A (en) * 1986-07-24 1988-02-24 Ratby Eng Co Ltd Inking system in a printing machine
DD276455A1 (en) * 1988-10-31 1990-02-28 Polygraph Leipzig LIFTING COLOR FOR QUICK-LAYING ROLL ROTATION PRINTING MACHINES
DE4411109C1 (en) * 1994-03-30 1995-09-14 Roland Man Druckmasch Method of ink quantity control for inking mechanism of offset printers
EP0623468B1 (en) * 1993-05-03 1997-03-19 MAN Roland Druckmaschinen AG Ductor inking device and method for controlling ink supply in printing presses
DE4333071C1 (en) * 1993-09-29 1995-02-09 Roland Man Druckmasch Method and device for controlling the sheet inlet when starting a sheet-processing printing machine

Also Published As

Publication number Publication date
CN1091034C (en) 2002-09-18
JPH1029300A (en) 1998-02-03
CN1163195A (en) 1997-10-29
CZ80497A3 (en) 1997-11-12
EP0799697A3 (en) 1998-03-18
DE59700605D1 (en) 1999-12-02
DE19613360A1 (en) 1997-10-09
CZ292637B6 (en) 2003-11-12
US5845576A (en) 1998-12-08
EP0799697A2 (en) 1997-10-08

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