EP0081186B1 - Verfahren und Vorrichtung zur Verringerung von Registerfehlern bei Mehrfarben-Rotationsdruckmaschinen - Google Patents

Verfahren und Vorrichtung zur Verringerung von Registerfehlern bei Mehrfarben-Rotationsdruckmaschinen Download PDF

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Publication number
EP0081186B1
EP0081186B1 EP82111065A EP82111065A EP0081186B1 EP 0081186 B1 EP0081186 B1 EP 0081186B1 EP 82111065 A EP82111065 A EP 82111065A EP 82111065 A EP82111065 A EP 82111065A EP 0081186 B1 EP0081186 B1 EP 0081186B1
Authority
EP
European Patent Office
Prior art keywords
torque
register
motor
functional relationship
quantity characteristic
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
Application number
EP82111065A
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German (de)
English (en)
French (fr)
Other versions
EP0081186A1 (de
Inventor
Anton Rodi
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 EP0081186A1 publication Critical patent/EP0081186A1/de
Application granted granted Critical
Publication of EP0081186B1 publication Critical patent/EP0081186B1/de
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/14—Registering devices with means for displacing the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/16—Programming systems for automatic control of sequence of operations

Definitions

  • the invention relates to a method and a device for reducing register errors in multicolor rotary printing presses, in particular in multicolor offset printing presses, the printing units of which are driven by a common motor and have a device for register adjustment.
  • the production of flawless multi-color prints presupposes that the printing plates used for printing the different colors register precisely with one another, that is to say they come into register with high accuracy on the paper traveling through the printing machine.
  • such printing machines are provided with devices for register adjustment, which make it possible to adjust the cylinders of the successive printing units which support the printing plates by small angular amounts relative to one another.
  • a particular difficulty in register adjustment is that the angular position of the cylinders carrying the printing plates with respect to the drive shaft is not rigid, but because of the inevitable elasticity of the materials used depends on the torque that must be used to drive the printing press. This torque is greatest on the drive motor and decreases from there along the gear chain leading to the individual printing units. As a result, the torque-dependent rotation of the cylinders carrying the pressure plates with respect to the drive shaft is different, from which it also follows that the rotation of the cylinders carrying the pressure plates relative to one another is different and depends on the magnitude of the torque.
  • the invention is therefore based on the object of providing a method and a device for avoiding register errors in multicolor rotary printing presses, which make it possible to change the operating speed of the printing press after precise setting of the register at any and, in particular, low speed, without the register setting is lost again.
  • This object is achieved according to the invention in that the functional relationship between the torque supplied by the engine or a characteristic quantity characteristic of the torque and the register shift necessary to maintain a correct register is determined and stored, and in that the engine supplied delivers the current operation Torque or the characteristic quantity therefor is monitored and the register shift is set to the value functionally assigned to the respective torque.
  • the printer can set up a perfect coverage of the individual print images when the machine is running slowly, and this coverage is retained if the machine is brought up to speed because the register shift necessary to maintain the coverage is known and is carried out automatically.
  • the invention also avoids register errors which could otherwise arise as a result of certain changing operating conditions, for example due to an increase in the operating temperature, with the resultant decrease in the torque requirement as the operating time increases after the printing machine is switched on.
  • the method according to the invention therefore allows the machine to be set up at slow speed with a correspondingly low material consumption and ensures that a good register is maintained at the desired pressure number even under changing operating conditions, without having to resort to the known, complicated control devices. Rather, a simple control is sufficient on the basis of the functional relationship between the torque supplied by the motor and the necessary register shift.
  • a device for carrying out the method according to the invention can also be retrofitted to any printing press, because it is only necessary to attach a device for monitoring the torque supplied by the motor or a variable characteristic of the torque and with a Connect control device that one Memory includes, in which different torques associated values of the register shift are stored and which is connected to the device for register shifting of the printing press in such a way that it effects an adjustment of the register shift to the assigned stored value depending on the measured torque.
  • the invention also relates to a device for reducing register errors in multi-color rotary printing machines, in particular multi-color offset printing machines, the printing units of which are driven by a common motor and have a device for register adjustment, which is characterized in that for carrying out the inventive Method has a device for monitoring the torque supplied by the drive motor or a variable characteristic of the torque and a control unit which comprises a memory in which values of the register shift assigned to different torques are stored, and which as a function of the measured torque or the torque therefor characteristic size causes an adjustment of the register shift to the assigned, stored value.
  • the blanket cylinders can also be adjusted in offset printing presses, in order to avoid image shifting on the blanket and consequent misprints.
  • the torque can be measured, for example, on the output shaft of the engine.
  • the attachment of strain gauges may be sufficient for this.
  • piezoelectric torque sensors for example, can also be installed in the output shaft of the motor. It is even easier if the torque is determined based on the current consumption of the motor.
  • the functional relationship between the torque or a variable characteristic therefor and the register shift is stored in the form of a table of values, because then the data contained in the table of values is saved by conventional computing devices, in particular a digital one Processor that can be processed.
  • the values corresponding to the different register shifts are then stored at addresses which correspond to different torques, so that the mass of a certain torque or the characteristic quantity therefor results in the addressing of a specific memory location, while the value available at this memory location corresponds to the torque assigned register shift determined.
  • This value can easily be transferred to the desired register shift using the usual control technology. It also goes without saying that it is readily possible to convert the measured torque into a digital value which corresponds directly to a memory address.
  • the drive power applied by the drive motor 6 is fed into the schematically indicated gear train 8 between the second and third printing units of a five-color sheet-fed offset printing press 7.
  • the torque distribution shown in FIG. 1 at the maximum speed n max of the printing machine 7 results Total torque 111 applied by the drive motor 6, which is divided in the force input point 11 between the printing units 2 and 3 in a ratio of 2: 3, results in a torque requirement and consumption of 1/5 of the total torque 111.
  • 2/5 of the split torque for each individual printing unit are used to supply the first and second printing units with torque, while the remaining 3/5 of the torque is distributed evenly between printing units 3 to 5.
  • the printing unit 2 becomes powerless, so that the torque requirement of the printing machine 2 and thus the torque to be applied by the drive motor 1 are only 4/5 of the total torque M, with the printing units 1 and 2 then only 1/5 in total and 3/5 of the fed-in torque for printing units 3 to 5.
  • the total torque required for a printing press 7 according to FIGS. 1 and 2 is dependent on the rising machines speed n indicated, with the torque M on the ordinate and the machine speed n m on the abscissa.
  • the torque curve 12 is characteristic of the torque curve for a printing press according to FIG. And the curve 13 for the torque curve of a printing press according to FIG. 2.
  • the drive motor 6 is designed such that it is under full load by all five printing units. According to the end point of the torque curve 12 at the highest machine speed 22 and the greatest torque requirement, it must only be driven in the partial load range, for example with approximately 80% of its total output.
  • the characteristic values of the corresponding register adjustments in the individual speed ranges determined for these torque curves are measured in a device 14 for monitoring the torque, designed as a torque converter, and measured in a quantity characteristic of the respective torque, e.g. B. the current intensity I, transformed.
  • the values of the measured torque converted in this way are stored in a memory 15 of a control unit 16.
  • the memory can be designed as an internal memory of the control unit 16 or instead as an external memory unit.
  • the control unit 16 - preferably an electronic computer - is coupled to an operating unit 17, by means of whose keyboard not described and shown in more detail, control commands for adjusting the register of the individual printing units 1 to 5 can be entered.
  • a control electronics unit 18 is connected upstream of the control unit 16, which records parameters specific to the job, machine and environment and also stores them in the memory 15 as a function of the measured torques.
  • the control unit 16 is connected to the register motors 19 of the individual printing units 1 to 5.
  • the register motors 19 are also coupled to the memory 15 and to a display 20 for visual representation of the register values in digital or analog form for the purpose of feedback of their position values.
  • the functional relationship between torque and register shift is a characteristic of the respective printing press 7, this characteristic can also depend on external factors, such as the temperature, since the elastic properties of the materials are also temperature-dependent.
  • the register shift depends on the way in which the loads on the transmission chain, i. H. distribute the gear train 8, so that the use of colors of different viscosities can have an influence on the register shift.
  • the shift in register may depend on the material used as the print carrier, for example on the composition and thickness of the paper used, but perhaps also on plastic films or even pieces of textile. Accordingly, it can be expedient to determine the functional relationship between torque and register shift under different conditions and to use the functional relationship applicable to the prevailing conditions to control the register shift.
  • Such an influencing condition can e.g. B. the switching off of one or more printing units 1-5, or general torque shifts by changing functions.
  • the torque applied by the drive motor 6 is transformed into a variable characteristic of the torque as a function of the increasing engine speed in the torque converter 14 and is entered into the memory 15 via the control unit 16.
  • the link electronics 18 make the parameters dependent on the conditions, the machine and the environment continuously recorded and also saved.
  • the register of the individual printing units With increasing machine speeds and with changing parameters, such as temperature, changing a print job with a different print medium, using other printing inks, etc., the register of the individual printing units also changes and requires constant corrections, which are entered by means of the operating unit 17 into the control unit 16 and the like Values are stored in memory 15.
  • the values of the register shift as a function of the torques and the parameters are stored at any time in the form of a table of values.
  • control unit 16 registers the values which the printer sets in operation, in order to correct values of the torque-dependent register shift which have already been stored or to save such values in the first place.
  • the settings registered by the control unit 16 are implemented automatically, so that the functional relationship at the start of the start-up of a printing press 7 is detected automatically.
  • the first printing processes after the machine has been put into operation can be understood as a “test run to determine the functional relationship.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
EP82111065A 1981-12-08 1982-11-30 Verfahren und Vorrichtung zur Verringerung von Registerfehlern bei Mehrfarben-Rotationsdruckmaschinen Expired EP0081186B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3148449 1981-12-08
DE3148449A DE3148449C1 (de) 1981-12-08 1981-12-08 Verfahren zur Verringerung von Registerfehlern und Druckmaschine zur Durchfuehrung des Verfahrens

Publications (2)

Publication Number Publication Date
EP0081186A1 EP0081186A1 (de) 1983-06-15
EP0081186B1 true EP0081186B1 (de) 1985-03-13

Family

ID=6148126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111065A Expired EP0081186B1 (de) 1981-12-08 1982-11-30 Verfahren und Vorrichtung zur Verringerung von Registerfehlern bei Mehrfarben-Rotationsdruckmaschinen

Country Status (7)

Country Link
US (1) US5036764A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0081186B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS58108147A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) AT385240B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1208971A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3148449C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES8307594A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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Publication number Priority date Publication date Assignee Title
US4572074A (en) * 1984-11-14 1986-02-25 Harris Graphics Corporation Multi-unit press register
GB9210536D0 (en) * 1992-05-16 1992-07-01 Keefe Desmond O Printing plate registration apparatus
DE4218604C2 (de) * 1992-06-05 2003-05-08 Heidelberger Druckmasch Ag Antrieb für eine Bogendruckmaschine mit mehreren Druckwerken
US6427590B1 (en) 1992-10-12 2002-08-06 Heidelberger Druckmaschinen Ag Drive for a printing press with a plurality of printing units
DE4234331A1 (de) * 1992-10-12 1994-04-14 Heidelberger Druckmasch Ag Antrieb für eine Druckmaschine mit mehreren Druckwerken
DE4234928A1 (de) * 1992-10-16 1994-04-21 Heidelberger Druckmasch Ag Vorrichtung und Verfahren zur Dämpfung von mechanischen Schwingungen von Druckmaschinen
DE4241807A1 (de) * 1992-12-11 1994-06-16 Heidelberger Druckmasch Ag Antrieb für eine Druckmaschine
DE4407642C1 (de) * 1994-03-08 1995-08-17 Roland Man Druckmasch Verfahren zum Verändern der Drehzahl einer Druckmaschine
DE4416974C3 (de) * 1994-05-13 2000-01-05 Heidelberger Druckmasch Ag Offsetrotations-Bogendruckmaschine mit mehreren Druckwerken in Reihenbauweise
DE4434843A1 (de) * 1994-09-29 1996-04-18 Roland Man Druckmasch Verfahren zur Vermeidung von Passerdifferenzen
CH690230A5 (fr) * 1995-03-17 2000-06-15 Bobst Sa Procédé et dispositif de contrôle de l'humidité d'une bande de matériau dans une machine d'impression.
EP0770480B1 (de) * 1995-10-25 2001-12-19 Heidelberger Druckmaschinen Aktiengesellschaft Digitale Druckmaschine mit Registerregelung
JPH09193337A (ja) * 1996-01-24 1997-07-29 Komori Corp 印刷機の接触圧調整装置
DE50113849D1 (de) * 2000-05-17 2008-05-29 Eastman Kodak Co Vorrichtung zur Minimierung des Einflusses von Registerdifferenzen
DE10132266B4 (de) * 2000-07-11 2015-10-22 Heidelberger Druckmaschinen Ag Verfahren zur Regelung des Übergabepassers in einer Bogenrotationsdruckmaschine
JP4451049B2 (ja) * 2001-07-26 2010-04-14 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 マルチモータ駆動装置、および枚葉紙印刷機を駆動する方法
DE10334230B4 (de) * 2002-08-06 2018-05-03 Heidelberger Druckmaschinen Ag Vorrichtung zur Korrektur der Lage eines Druckbildes auf einem Bogen einer Bogen-Druckmaschine
DE102004031508B4 (de) * 2004-06-30 2016-01-07 Koenig & Bauer Ag Verfahren zur Korrektur von Passerdifferenzen
DE102004034431A1 (de) 2004-07-15 2006-02-09 Windmöller & Hölscher Kg Registervorsteuerung bei Geschwindigkeitsänderung
US9079388B2 (en) 2006-02-16 2015-07-14 Heidelberger Druckmaschinen Ag Control of a printing press using a torsion model and printing press controlled by torsion model
DE102006007181A1 (de) * 2006-02-16 2007-08-23 Heidelberger Druckmaschinen Ag Steuerung einer Druckmaschine mittels Torsionsmodell
US9289398B2 (en) 2006-03-30 2016-03-22 Ptc Therapeutics, Inc. Methods for the production of functional protein from DNA having a nonsense mutation and the treatment of disorders associated therewith
DE102006026365B4 (de) * 2006-06-07 2017-10-12 manroland sheetfed GmbH Druckmaschine
JP2011251505A (ja) * 2010-06-04 2011-12-15 Komori Corp 印刷機の接触圧調整方法及び接触圧調整装置
JP2011251504A (ja) * 2010-06-04 2011-12-15 Komori Corp 印刷機の接触圧調整方法及び接触圧調整装置
JP2011251506A (ja) * 2010-06-04 2011-12-15 Komori Corp 凹版印刷機の接触圧調整方法及び接触圧調整装置
JP5911142B2 (ja) * 2012-08-02 2016-04-27 株式会社Ｉｓｏｗａ 段ボールシートの印刷装置、段ボールシート製函機、および段ボールシート製函機のための管理装置
DE102015017071B4 (de) 2015-03-18 2022-10-27 Koenig & Bauer Ag Verfahren zum Anpassen eines Druckbildes und/oder mindestens eines Zylinderaufzugs an eine Bedruckstoffänderung in einer Druckmaschine
DE102015017063B4 (de) 2015-03-18 2022-10-27 Koenig & Bauer Ag Verfahren zum Anpassen eines Druckbildes und/oder mindestens eines Zylinderaufzugs an eine Bedruckstoffänderung in einer Druckmaschine
DE102015017062B4 (de) 2015-03-18 2022-10-27 Koenig & Bauer Ag Verfahren zum Anpassen eines Druckbildes und/oder mindestens eines Zylinderaufzugs an eine Bedruckstoffänderung in einer Druckmaschine
DE102018201968A1 (de) * 2017-03-08 2018-09-13 Heidelberger Druckmaschinen Ag Verfahren zur Reduktion von quasi-statischen Passerdifferenzen in einer Druckmaschine
US11203173B2 (en) * 2017-09-27 2021-12-21 Mitsubishi Heavy Industries Machinery Systems, Ltd. Box making machinery and method for adjusting processing position of corrugated boards

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DD115069A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-10-15 1975-09-12
US3963902A (en) * 1975-04-29 1976-06-15 Westvaco Corporation Method and apparatus for pre-registration of a multiple cylinder rotary printing press
GB2024457B (en) * 1978-06-07 1983-01-06 Harris Corp Printing press ready and control system
US4495582A (en) * 1982-06-04 1985-01-22 Harris Graphics Corporation Control system for pre-setting and operation of a printing press and collator

Also Published As

Publication number Publication date
EP0081186A1 (de) 1983-06-15
ES517941A0 (es) 1983-08-16
US5036764A (en) 1991-08-06
JPH0454581B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-08-31
ES8307594A1 (es) 1983-08-16
DE3148449C1 (de) 1983-06-01
JPS58108147A (ja) 1983-06-28
ATA448882A (de) 1987-08-15
AT385240B (de) 1988-03-10
CA1208971A (en) 1986-08-05

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