EP0135700B1 - Verfahren zum Einstellen des Farbwerks einer Druckmaschine - Google Patents

Verfahren zum Einstellen des Farbwerks einer Druckmaschine Download PDF

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Publication number
EP0135700B1
EP0135700B1 EP84108725A EP84108725A EP0135700B1 EP 0135700 B1 EP0135700 B1 EP 0135700B1 EP 84108725 A EP84108725 A EP 84108725A EP 84108725 A EP84108725 A EP 84108725A EP 0135700 B1 EP0135700 B1 EP 0135700B1
Authority
EP
European Patent Office
Prior art keywords
ink
fountain roller
measured
zones
densitometer
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
EP84108725A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0135700A3 (en
EP0135700A2 (de
Inventor
Hans-Jürgen Rottstedt
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.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT84108725T priority Critical patent/ATE54102T1/de
Publication of EP0135700A2 publication Critical patent/EP0135700A2/de
Publication of EP0135700A3 publication Critical patent/EP0135700A3/de
Application granted granted Critical
Publication of EP0135700B1 publication Critical patent/EP0135700B1/de
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
    • B41F33/0063—Devices for measuring the thickness of liquid films on rollers or cylinders
    • 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
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/045—Remote control of the duct keys

Definitions

  • the invention relates to a method for adjusting the inking unit of a printing press with a plurality of ink metering elements, the distances of which from an ink fountain roller can be set independently of one another, the ink application being scanned zone by zone by a measuring device.
  • inking units with a plurality of ink metering elements which can be set independently of one another, as are known, for example, from DE-C-2 629 331, it is necessary to set all ink metering elements to a uniform zero position before setting a defined color profile on the ink fountain roller, i.e. in a position in which all ink metering elements are equidistant from the ink fountain roller. Only when this zero position has been reached can the ink layer thicknesses required for a particular print on the individual ink metering elements be set in the correct relationship to one another according to predetermined setting values.
  • the invention has for its object to provide a method of the type specified for setting the inking unit of a printing press, which is simple, enables quick setting and makes less demands on the operating personnel.
  • This object is achieved in that initially only a first ink metering element is brought into a desired zero position and the ink application on the ink fountain roller in the ink zone covered by this ink metering element is measured with the measuring device, that then the ink application on the ink fountain roller in the other ink zones is the same Is measured and the remaining color metering elements are adjusted until the measured value in the color zones corresponds to the value initially measured for the first color metering element.
  • the method according to the invention has the advantage that the ink metering elements of the inking unit of a printing press can be quickly and reliably brought into a uniform zero position without the human eye being involved. As soon as a color metering element is manually brought into the desired zero position, it is possible to automatically bring all other color metering elements into the same zero position. Since in the setting method according to the invention the correct position of the ink metering elements is determined only after the ink application on the ink fountain roller, adjustment errors are avoided, which can be caused by disruptive operational influences, such as the deflection of the ink fountain roller or its expansion when heated.
  • the ink application on the ink fountain roller is measured by means of a light-dark scanning.
  • This measurement has the advantage that extremely thin layers of paint of a few pm can be detected.
  • a densitometer is preferably used for light-dark scanning.
  • the measuring device is calibrated on a color-free calibration field before measuring the color zones.
  • the measured values determined can then be compared with other measured values.
  • the zero position can be determined by a measured value and also set using the measuring device.
  • the calibration field is preferably formed by an ink-free region of the ink fountain roller.
  • a further advantageous embodiment of the invention consists in that the position of the ink metering elements reached in the zero position is measured in relation to the ink fountain and the measured values are stored in a data memory.
  • the ink metering elements can then always be brought into the zero position once determined, without the ink application having to be measured again.
  • the zero position can be achieved by adjusting the overall arrangement of ink metering element, adjusting and measuring device, consisting e.g. from eccentric and potentiometer.
  • the zero position can also be achieved by actuating the actuating device if the characteristic curve contained in the actuating device is taken into account when calculating the new actuating paths. This is necessary if the dosing elements are adjusted according to a non-linear characteristic.
  • a preferred measuring device for carrying out the specified method consists in that the probe head of a densitometer can be moved on a rail at a constant distance along the ink fountain roller, with the possibility of locking the probe head in the region of each ink zone.
  • the inking unit of a printing press is shown schematically in the drawing.
  • the ink application to an ink fountain roller 1 can be adjusted with the aid of ink metering elements 2-10, which are designed as flat slides.
  • electrically remote-controllable adjusting devices 11, indicated by eccentrics, are provided, which are on the not shown Ink fountain are stored.
  • the ink application to the ink fountain roller is measured with a probe 12 of a densitometer.
  • the probe 12 can be moved as desired along the ink fountain roller 1, as indicated by the dotted lines.
  • the ink zones assigned to the individual ink metering elements 2-10 on the ink fountain roller 1 are denoted by 2 'to 10'.
  • a color-free calibration surface 13 at the end of the ink fountain roller 1 is provided for the calibration of the densitometer.
  • a color metering element for example the color metering element 2 is brought into a position by actuating the adjusting device 11, in which a small amount of paint is just being applied in the entire color zone 2 'on the Ink fountain roller 1 can be seen.
  • the ink layer should be at least 3-5 ⁇ m in order to prevent the ink fountain roller from running bright. Now the probe 12 is moved over the ink zone 2 'and the ink density of the ink application set is measured.
  • the measured value X displayed by the densitometer corresponds to the zero position set on the color metering element 2 and thus forms the guide value for setting the other color metering elements 3-10 in the corresponding zero position.
  • the probe 12 is next moved into the area of the color zone 3 'and then the color metering element 3 is adjusted via the adjusting device 11 until the measured value X is also displayed by the densitometer.
  • the same process is then repeated in the ink zone 4 'with the ink metering element 4 and so on until all ink metering elements are set and the value X is measured in all ink zones.
  • the ink metering elements can be automatically moved back to their zero position without the need for a new densitometer measurement.
  • the color metering elements can be set according to predetermined values to form a color profile suitable for printing.
  • this setting can be made on the basis of the stored values for the position of the ink metering elements in the zero position.
  • These saved values then also form the basis for any necessary readjustments of individual color zones.
  • the stored values can also be used when setting new color profiles, so that it is not necessary to measure the slider again.
  • a position of the ink metering elements is generally selected as the zero position, in which the ink application to the ink fountain roller 1 reaches a barely permissible minimum dimension.
  • the zero position therefore represents the maximum permissible approximation of the ink metering elements to the ink fountain roller.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP84108725A 1983-08-30 1984-07-24 Verfahren zum Einstellen des Farbwerks einer Druckmaschine Expired - Lifetime EP0135700B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108725T ATE54102T1 (de) 1983-08-30 1984-07-24 Verfahren zum einstellen des farbwerks einer druckmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3331208 1983-08-30
DE3331208A DE3331208A1 (de) 1983-08-30 1983-08-30 Verfahren zum einstellen des farbwerks einer druckmaschine und messvorrichtung zu seiner durchfuehrung

Publications (3)

Publication Number Publication Date
EP0135700A2 EP0135700A2 (de) 1985-04-03
EP0135700A3 EP0135700A3 (en) 1987-03-25
EP0135700B1 true EP0135700B1 (de) 1990-06-27

Family

ID=6207783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108725A Expired - Lifetime EP0135700B1 (de) 1983-08-30 1984-07-24 Verfahren zum Einstellen des Farbwerks einer Druckmaschine

Country Status (5)

Country Link
US (1) US4570539A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0135700B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS6072729A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE54102T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3331208A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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JPS62123929U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1986-01-28 1987-08-06
DE3628464C1 (de) * 1986-08-21 1988-03-10 Koenig & Bauer Ag Druckfarbenzufuhr in einem Farbwerk einer Bogenrotationsdruckmaschine
DE3643720C2 (de) * 1986-12-20 1994-03-10 Heidelberger Druckmasch Ag Verfahren zum Ermitteln von Steuer- /Regelgrößen für das Farbwerk von Druckmaschinen
JPH0796293B2 (ja) * 1986-12-29 1995-10-18 東芝精機株式会社 印刷機のインク供給量調整装置
IT1211266B (it) * 1987-08-17 1989-10-12 Grapho Eng Srl Sistema di bagnatura continua a regolazione automatica per macchine da stampa offset
DE3914831C3 (de) * 1989-05-05 1999-05-20 Roland Man Druckmasch Vorrichtung zum zonenweisen Einstellen eines Dosierspaltes einer Farbdosieranlage einer Druckmaschine
CA2005045A1 (en) * 1989-05-08 1990-11-08 Frank L. Shriver Apparatus and method for decorating cans
US5018444A (en) * 1990-02-28 1991-05-28 Wpc Machinery Corporation Ink applying system for a printing apparatus
US5090315A (en) * 1991-06-13 1992-02-25 Man Roland Druckmaschinen Ag Electronically controllable ink fountain roll drive system, and method
US5138944A (en) * 1991-09-03 1992-08-18 Heidelberg Harris Inc. Method and apparatus for setting respective positions of ink keys
JP2719110B2 (ja) * 1994-03-04 1998-02-25 常一 加茂 個人データ保存装置
DE19537807C1 (de) * 1995-10-11 1997-02-06 Roland Man Druckmasch Verfahren zum Feststellen von Schichten
WO1998014330A1 (en) * 1996-09-30 1998-04-09 Accel Graphics Systems, Inc. Method and apparatus for maintaining ink level in ink fountain of printing press
DE19750960C2 (de) * 1996-11-26 2002-08-14 Roland Man Druckmasch Filmfarbwerk für eine Rotationsdruckmaschine
US5895836A (en) * 1997-11-06 1999-04-20 Uzik; Barry K. Greyscale calibration method in digital printing
DE19800475A1 (de) * 1998-01-09 1999-07-15 Koenig & Bauer Ag Verfahren und Einrichtung zur Beeinflussung der Farbverteilung
JP4197379B2 (ja) * 1999-09-07 2008-12-17 株式会社小森コーポレーション 多色印刷機のインキ供給量調整方法および装置
DE29916379U1 (de) * 1999-09-17 1999-12-09 MAN Roland Druckmaschinen AG, 63075 Offenbach Vorrichtung zum densitometrischen Ausmessen von Druckprodukten
DE10159698B4 (de) * 2000-12-14 2015-03-26 Heidelberger Druckmaschinen Ag Verfahren zum Einstellen einer Farbmenge, die einem Druckzylinder einer Druckmaschine zugeführt wird
US7102691B2 (en) * 2001-08-08 2006-09-05 Matsushita Electric Industrial Co., Ltd. Method and apparatus for remote use of personal computer
DE102006062980B3 (de) * 2005-12-12 2021-07-29 Heidelberger Druckmaschinen Intellectual Property Ag & Co. Kg Detektor zur Schließpunkterfassung im Farbkasten
DE102007054289A1 (de) * 2007-11-14 2009-05-28 Manroland Ag Verfahren zum Betreiben eines Farbwerks einer Druckmaschine
DE102008042147A1 (de) * 2008-09-17 2010-03-18 Manroland Ag Verfahren zum Betreiben einer Druckmaschine
DE102009058851A1 (de) * 2009-12-18 2011-06-22 Heidelberger Druckmaschinen AG, 69115 Verfahren zum Dosieren einer Farbschichtdicke auf einer Farbkastenwalze einer Druckmaschine
US20130186290A1 (en) * 2012-01-23 2013-07-25 Xerox Corporation Joint feedforward & feedback control of a keyed inking unit
DE102022101244A1 (de) 2022-01-20 2023-07-20 Koenig & Bauer Ag Verfahren zur Kalibrierung von Farbdosierelementen

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DD93178A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) *
US3353484A (en) * 1965-06-02 1967-11-21 Vandercook & Sons Inc Inking system for printing presses
GB1226487A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1969-11-14 1971-03-31
US3746957A (en) * 1970-09-16 1973-07-17 Polygraph Leipzig Apparatus for remote control of positioning and drive members for printing machines
US3756725A (en) * 1970-10-12 1973-09-04 Harris Intertype Corp Measurement and control of ink density
JPS4951002A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-09-19 1974-05-17
US3835777A (en) * 1973-01-16 1974-09-17 Harris Intertype Corp Ink density control system
US4151796A (en) * 1973-04-02 1979-05-01 Heidelberger Druckmaschinen Aktiengesellschaft Device for automatically controlling deviations in liquid feed in offset presses
DE2340300C3 (de) * 1973-08-09 1979-09-13 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Farbkastenwalze für ein Heberfarbwerk an Druckmaschinen
US3958509A (en) * 1974-06-13 1976-05-25 Harris Corporation Image scan and ink control system
US3930447A (en) * 1974-07-22 1976-01-06 Harris Corporation Dual purpose display for printing presses
US3978788A (en) * 1975-05-16 1976-09-07 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Ink metering assembly for printing press
AU2737177A (en) * 1976-07-29 1979-02-01 Addressograph Multigraph Ink thickness control and method
US4193345A (en) * 1977-04-01 1980-03-18 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Device for adjustment of the ink flow on printing press inking units
DE2728738B2 (de) * 1977-06-25 1979-05-10 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Eulrichtung zur Kontrolle und Regelung der Farbgebung an Druckmaschinen
DE2935489C2 (de) * 1979-09-03 1982-12-09 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Farbmessereinstelleinrichtung für Druckmaschinen, insbesondere Rotationsdruckmaschinen
DE3028025C2 (de) * 1980-07-24 1983-04-14 Miller-Johannisberg Druckmaschinen Gmbh, 6200 Wiesbaden Verfahren zur Veränderung des Farbflusses durch unterschiedliches Verstellen einzelner Breitenzonen eines Farbmessers oder einzelner Farbdosierelemente bei Druckmaschinen-Farbwerken
DE3136705C1 (de) * 1981-09-16 1982-10-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Verfahren zur Herstellung passgenauer Drucke in Druckmaschinen

Also Published As

Publication number Publication date
JPS6072729A (ja) 1985-04-24
EP0135700A3 (en) 1987-03-25
DE3331208A1 (de) 1985-03-14
ATE54102T1 (de) 1990-07-15
EP0135700A2 (de) 1985-04-03
US4570539A (en) 1986-02-18
DE3331208C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1988-02-25

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