EP0741028B1 - Méthode pour contrÔler ou régler l'encrage dans une machine à imprimer - Google Patents

Méthode pour contrÔler ou régler l'encrage dans une machine à imprimer Download PDF

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Publication number
EP0741028B1
EP0741028B1 EP96105189A EP96105189A EP0741028B1 EP 0741028 B1 EP0741028 B1 EP 0741028B1 EP 96105189 A EP96105189 A EP 96105189A EP 96105189 A EP96105189 A EP 96105189A EP 0741028 B1 EP0741028 B1 EP 0741028B1
Authority
EP
European Patent Office
Prior art keywords
control
regulating
image recording
recording device
printing machine
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
Application number
EP96105189A
Other languages
German (de)
English (en)
Other versions
EP0741028A3 (fr
EP0741028A2 (fr
Inventor
Bernd Kistler
Wolfgang Geissler
Harald Bucher
Werner Dr. Huber
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
Original Assignee
Heidelberger 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.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0741028A2 publication Critical patent/EP0741028A2/fr
Publication of EP0741028A3 publication Critical patent/EP0741028A3/fr
Application granted granted Critical
Publication of EP0741028B1 publication Critical patent/EP0741028B1/fr
Anticipated expiration legal-status Critical
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
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
    • 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
    • Y10S101/45—Sensor for ink or dampening fluid thickness or density

Definitions

  • the invention relates to a method for control or rules of the coloring of a printing press, in which Color metering elements with the help of a control or Control device can be set and by means of at least one assigned to the printing press Image recording device continuously image signals from the printed image be obtained and the control or regulating device be fed.
  • Control or regulating device several control or Control algorithms are available to choose from, of which depending on predefinable parameters a control or Control algorithm is automatically selected and used.
  • the invention thus proposes depending on certain Parameters to change the control or regulation algorithm. This will make adjustments to the existing one Circumstances achieved that do not change, for example from control or regulation parameters.
  • Control algorithms automatically selected the appropriate one best fits the situation, with the selection and the Usage takes place automatically without the user himself must intervene. In this way it is optimal possible to adjust the color of the press adapt to any circumstances.
  • the detected parameter Color measuring field composition of the image recording device is used. It can be, for example Acquisition of a solid field or a gray field a control strip of the print result.
  • the Image recording device not a control strip Determination of image signals captured, but that a measurement takes place in the subject itself, preferably defined Locations of the subject are recorded during the measurement.
  • the parameter can additionally or alternatively also the Printing status of the printing press. Below the respective status of the print job is to be understood, for example, it is the setup phase or the printing phase. During the setup phase other settings for the color dosing elements of the Inks required than in production. Is accordingly it - according to the invention - possible during the Another control or regulation algorithm than to be used in production printing.
  • the type of one of the image recording devices as a parameter associated color filter to take into account, that is in Depending on the use of hardware, the control or Control algorithm from the selection of the available ones Algorithms selected and used. This selection can of course - as above set out depending on the software.
  • control algorithms are to be understood as functions that an effect on the response of the actuator (Color metering element) if the controlled variable differs from the image recording device is recorded, opposite one Reference variable, which represents a setpoint, changed.
  • actuator Color metering element
  • Reference variable which represents a setpoint
  • FIG. 1 shows a schematic illustration of itself a printing machine, not shown Print copy 1 that has passed several printing units and therefore has a subject, not shown.
  • a Image capture device 2 of the printing press becomes the subject and / or a control strip, if it is present defined places optically detected, so that in this way and wise image signals are obtained, which as one Control variable representing the actual value of a control device 3 be fed.
  • the control device 3 is also a Setpoint Setpoint is supplied as a reference variable, which with the Actual value Is compared to form a rule deviation becomes.
  • the selects Control device 3 from a variety of available standing control algorithms from the control algorithm that regarding the given parameter P to the best possible Rule result leads.
  • the parameters P it can be especially the color measurement field composition of the Image recording device and / or the printing status of the Printing press and / or the possibility of using a act color filter associated with the image recording device.
  • the color measuring field composition for example, differentiated whether a solid field of a Window of the color zone, for example the field black, cyan, magenta or yellow, or whether the gray field from the image acquisition device is scanned.
  • the gray field is around a field where all the colors otherwise used are printed on top of each other.
  • the measurement is made for determination the image signals not in a control strip, but in the Subject, i.e. in the picture, is also there depending on the location of the Measuring field - automatically a selection among those available standing control algorithms.
  • the selected one Control algorithm is used for further processing
  • Control deviation uses and leads at the exit of the Control device 3 at a value of an actuator 4 controls that a color metering element or Ink metering elements of the inking units of the printing press actuated.
  • the printing machine preferably has a zonal effect Color dosing before, that is, they are zonal Color metering elements are provided, each color metering element in a corresponding, previously described manner, is regulated.
  • Control algorithm selection based on Color measuring field composition
  • the algorithm is selected, for example whether it is a setup run or whether the Production status is present.
  • step 5 image data of the Print copies recorded and then in step 6 with Compare target values that come from a specification 7.
  • step 8 is formed from the target / actual value comparison Control deviation processed further, depending on Parameters P- a selection of a control algorithm under one Numerous control algorithms available is taken and after further processing of the Control deviation with the control algorithm - the result in Step 9 is used to set an actuator.
  • the setting leads to the adjustment of a color metering element (Step 10) of the inking unit or the inking units of the printing machine, not shown. This adjustment of the Color metering elements lead to a change in the color scheme of the subject or the control strip, which by means of the optically operating image recording device is detected. This results in the one marked with 11 Feedback.
  • the method according to the invention makes it possible to always an optimal control algorithm automatically so that the best possible printing results are achieved become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (6)

  1. Procédé de commande ou de réglage de l'encrage dans une machine à imprimer, suivant lequel des éléments de dosage de l'encre sont réglés à l'aide d'un dispositif de commande ou de réglage et suivant lequel des signaux d'image sont obtenus en continu d'une image d'impression au moyen d'au moins un dispositif de prise de vues associé à la machine à imprimer et envoyés au dispositif de commande ou de réglage,
    caractérisé
    en ce que le dispositif de commande ou de réglage (3) dispose au choix de plusieurs algorithmes de commande ou de réglage dont un algorithme de commande ou de réglage est sélectionné automatiquement et utilisé en fonction de paramètres (P) pouvant être prescrits.
  2. Procédé selon la revendication 1,
    caractérisé
    en ce qu'une combinaison de champs colorimétriques qui est détectée par le dispositif (2) de prise de vues est utilisée en paramètre (P).
  3. Procédé selon l'une des revendications précédentes,
    caractérisé
    en ce que l'état momentané d'un ordre d'impression est utilisé en paramètre (P).
  4. Procédé selon l'une des revendications précédentes,
    caractérisé
    en ce que le type d'un écran coloré qui est associé au dispositif (2) de prise de vues est utilisé en paramètre (P).
  5. Procédé selon l'une des revendications précédentes,
    caractérisé
    en ce que des algorithmes de réglage à caractère proportionnel et/ou proportionnel et intégral et/ou proportionnel et différentiel et/ou proportionnel, intégral et différentiel et/ou intégral sont utilisés.
  6. Procédé selon l'une des revendications précédentes,
    caractérisé
    en ce que le dispositif (2) de prise de vues détecte au moins un champ colorimétrique qui est situé dans le sujet ou dans une bande de contrôle de l'exemplaire d'impression.
EP96105189A 1995-05-04 1996-04-01 Méthode pour contrÔler ou régler l'encrage dans une machine à imprimer Expired - Lifetime EP0741028B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19516333 1995-05-04
DE19516333A DE19516333A1 (de) 1995-05-04 1995-05-04 Verfahren zum Steuern oder Regeln der Farbgebung einer Druckmaschine

Publications (3)

Publication Number Publication Date
EP0741028A2 EP0741028A2 (fr) 1996-11-06
EP0741028A3 EP0741028A3 (fr) 1997-03-19
EP0741028B1 true EP0741028B1 (fr) 1999-06-30

Family

ID=7761039

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96105189A Expired - Lifetime EP0741028B1 (fr) 1995-05-04 1996-04-01 Méthode pour contrÔler ou régler l'encrage dans une machine à imprimer

Country Status (3)

Country Link
US (1) US5870529A (fr)
EP (1) EP0741028B1 (fr)
DE (2) DE19516333A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29612159U1 (de) * 1996-07-12 1996-08-29 MAN Roland Druckmaschinen AG, 63075 Offenbach Einrichtung zur schnellen Schaffung eines Fortdruckzustandes eines Druckwerkes
US6072793A (en) * 1997-06-12 2000-06-06 Lucent Technologies Inc. Electronically controlled main distributing frame
DE10105990A1 (de) * 2000-03-03 2001-09-06 Heidelberger Druckmasch Ag Verfahren zum Steuern einer Farbschicht auf der Druckform einer Druckmaschine
JP3880831B2 (ja) * 2001-10-10 2007-02-14 大日本スクリーン製造株式会社 インキプリセット方法
US7032508B2 (en) * 2003-03-21 2006-04-25 Quad/Tech, Inc. Printing press
DE102007016981A1 (de) * 2007-04-10 2008-10-16 Maschinenfabrik Wifag Verfahren zum Messen der Farbqualität im Rollendruck
DE102008045661A1 (de) 2007-09-26 2009-04-02 Heidelberger Druckmaschinen Ag Farbregelung mit einheitlicher Regelgröße
DE102008041430B4 (de) * 2008-08-21 2011-12-08 Koenig & Bauer Aktiengesellschaft Verfahren zur Prüfung zumindest eines in einem laufenden Druckprozess einer Druckmaschine ermittelten Messwertes auf seine Plausibilität
DE102013010970A1 (de) 2013-07-01 2015-01-08 Heidelberger Druckmaschinen Ag Speziell gerastertes Graumessfeld
DE102020123985A1 (de) 2020-09-15 2022-03-17 Koenig & Bauer Ag Verarbeitungsmaschinensystem mit einem Auftragsvorbereitungssystem und Verfahren zum Betreiben eines Verarbeitungsmaschinensystems

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024773A1 (de) * 1980-06-30 1982-01-28 Grapho-Metronic Meß- und Regeltechnik GmbH & Co, KG, 8000 München Verfahren und einrichtung zur kontrolle und zum steuern der farbgebung einer mehrfarben-druckmaschine
DE3322665A1 (de) * 1983-06-23 1985-01-03 Siemens AG, 1000 Berlin und 8000 München Farbdichtemessgeraet
DE3338143C2 (de) * 1983-10-20 1986-12-18 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Verfahren zur Erzeugung einer dem Druckbild entsprechenden Farbschichtstärke im Farbwerk einer Druckmaschine
DD238577A1 (de) * 1985-06-25 1986-08-27 Polygraph Leipzig Anpassungseinrichtung fuer ein druckmaschinen-farbwerkfernverstellsystem
DE3643720C2 (de) * 1986-12-20 1994-03-10 Heidelberger Druckmasch Ag Verfahren zum Ermitteln von Steuer- /Regelgrößen für das Farbwerk von Druckmaschinen
DE3707695A1 (de) * 1987-03-11 1988-09-22 Heidelberger Druckmasch Ag Verfahren zur definierten erzeugung einer dem fortdruck nahen farbverteilung im farbwerk von rotationsdruckmaschinen
DE3914238A1 (de) * 1989-04-29 1990-10-31 Heidelberger Druckmasch Ag Verfahren und anordnung zur steuerung von druckmaschinen
DE4128537A1 (de) * 1991-08-28 1993-03-04 Heidelberger Druckmasch Ag Verfahren zum einstellen eines fortdruckfarbprofils
US5148747A (en) * 1989-06-19 1992-09-22 Heidelberger Druckmaschinen Ag Process for setting a production run ink zone profile
DE4229267A1 (de) * 1992-09-02 1994-03-03 Roland Man Druckmasch Verfahren zur Steuerung des Druckprozesses auf einer autotypisch arbeitenden Druckmaschine, insbesondere Bogenoffsetdruckmaschine
DE4242683A1 (de) * 1992-12-17 1994-06-23 Contraves Gmbh Verfahren zum Steuern eines Farbauftrages in einer Druckeinheit
DE4321179A1 (de) * 1993-06-25 1995-01-05 Heidelberger Druckmasch Ag Verfahren und Einrichtung zur Steuerung oder Regelung von Betriebsvorgängen einer drucktechnischen Maschine

Also Published As

Publication number Publication date
DE59602314D1 (de) 1999-08-05
EP0741028A3 (fr) 1997-03-19
EP0741028A2 (fr) 1996-11-06
DE19516333A1 (de) 1996-11-07
US5870529A (en) 1999-02-09

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