EP1745925A2 - Dispositif de contrôle de registre - Google Patents

Dispositif de contrôle de registre Download PDF

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Publication number
EP1745925A2
EP1745925A2 EP06013301A EP06013301A EP1745925A2 EP 1745925 A2 EP1745925 A2 EP 1745925A2 EP 06013301 A EP06013301 A EP 06013301A EP 06013301 A EP06013301 A EP 06013301A EP 1745925 A2 EP1745925 A2 EP 1745925A2
Authority
EP
European Patent Office
Prior art keywords
acceleration
acceleration phase
register
control
register control
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.)
Granted
Application number
EP06013301A
Other languages
German (de)
English (en)
Other versions
EP1745925B1 (fr
EP1745925A3 (fr
EP1745925B2 (fr
Inventor
Hans-Jürgen DÖRES
Stephan Dr. Schultze
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.)
Bosch Rexroth AG
Original Assignee
Bosch Rexroth 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
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Application filed by Bosch Rexroth AG filed Critical Bosch Rexroth AG
Publication of EP1745925A2 publication Critical patent/EP1745925A2/fr
Publication of EP1745925A3 publication Critical patent/EP1745925A3/fr
Publication of EP1745925B1 publication Critical patent/EP1745925B1/fr
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Publication of EP1745925B2 publication Critical patent/EP1745925B2/fr
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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
    • B41F33/0009—Central control units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/025—Registering devices

Definitions

  • the invention relates to a method for register control for a multicolor rotary printing press in an acceleration phase with at least one register control device with control parameters for operation at a constant speed and with a motion control for controlling the platen speed.
  • the individual color separations are applied, in particular for cyan, magenta, yellow and black, in successive printing units.
  • the printing material is provided as a roll material and passed endlessly through the printing unit. Decisive for the achieved print quality is that the print images of the individual colors are exactly on top of each other.
  • the superposition of the printed images is referred to as a register.
  • register marks for mutual alignment of the individual printing units, register marks, for example in the form of register marks, are printed in addition to the actual printed image of each printing unit. Using these marks, an offset between the individual print images can be recorded online by means of an optical measuring system. In rotary printing systems, this measuring system is generally part of a control system known as register control.
  • the register control intervenes via suitable actuators in the printing process and compensates detected by the optical measuring system register deviations. In particular, the actuators can change the web length of the printing material between successive printing units so that the printed images of successive printing units are superimposed.
  • the cause of deviations between the individual prints are, in addition to the relative position of the printing units, changes in the geometry of the printing material. These geometry changes are caused, for example, by the influence of moisture and by drying steps arranged between the printing units.
  • the web tension is kept largely the same, which allows a good print quality without significant corrections.
  • the control parameters of the register control are adapted to this operating state. For both positive and negative acceleration processes, however, the web tension changes with a negative influence on register accuracy. This can not be sufficiently compensated by the control system, resulting in this operating phase to appropriate committee. Even after the acceleration phase, the control system requires a certain running time to get back to the appropriate manipulated variables. This can also cause rejects.
  • the DE 40 37 728 C1 is a device for register control for multi-color web-fed rotary printing presses according to the web / web method described with a controller having a central unit for detecting and storing all control parameters and the control behavior, with a scanner for detecting web register marks and with actuators for controlling the longitudinal register.
  • the apparatus comprises a monitoring unit which has an acceleration detection device which determines a speed change of the printing press on the printing cylinders which differs from a stable path speed and which has a shut-off device which is in signal communication with the acceleration detection device and which regulates the occurrence of a signal representing this speed change as long as intervenes until again a constant operating speed is reached.
  • a disadvantage of this device is that to determine the acceleration of an acceleration detection device is provided with at least one corresponding speedometer for detecting the web speed. This leads due to the additional components required to increased system costs and due to the necessary wiring of the speedometer to increased installation costs. The costs are thereby increased even further, since it is advantageous to provide such a speedometer on each printing unit.
  • a further disadvantage is that often the spatial conditions within the printing unit do not allow to install the speedometer in a suitable position.
  • the object is achieved in that the register control device is acted upon in the acceleration phase with at least one fixed set of the control parameters, which differs from the control parameters at constant speed and / or that in the acceleration phase, a relative to a constant speed changed correction profile is used and / or in that information about the presence of the acceleration phase is given by the motion control to the register control device.
  • a changeover to changed control parameters is preferably carried out, while a modified correction profile is used in register regulators with activated correction values.
  • the controller remains active during the acceleration phase and compensates for register deviations in this phase as well.
  • the register controller can be optimally adapted to the requirements during the acceleration phase and thus a minimum register offset can be achieved.
  • the controller parameters or correction values are reset to the values before the constant-speed acceleration phase.
  • the information about the presence of an acceleration phase is available to the motion control of the rotary printing machine and can be provided from there to the register controller. Additional speed sensors for detecting the acceleration phase can thus be saved, resulting in reduced component, assembly and cabling costs. This is especially true, since advantageously the acceleration is detected in all printing units of the printing unit and thus several speed sensors can be saved at the same time. Another advantage results from the fact that the determination of an acceleration phase is also possible in rotary printing presses with printing units in which no mounting space for speed sensors is provided.
  • the information provided by the motion control information about the acceleration phase can be used both to replace the control parameters or the correction profile or to a known from the prior art reaction, for example, the freezing of the controller output during the acceleration phase.
  • the register controller can compensate for deviations during the speed change more quickly. This can be associated with a slightly worse print quality.
  • a simple data exchange between the motion controller and the register controller is achieved by giving the information about the presence of the acceleration phase, the acceleration signal, as a binary signal from the motion controller to the register controller.
  • the signal can be routed to an external register controller via a fieldbus or, if the register controller and the motion controller are integrated in the same control hardware, can be transferred directly, for example via an internal bus system.
  • Binary signals are today's motion controls, for example in the form "speed setpoint If speed changes always take place with the same acceleration as a result of the machine or if only one possible reaction is provided, for example switching to a changed control parameter set, then a binary signal is sufficient to describe the acceleration process.
  • the acceleration signal is given to the register control device as a signal proportional to the acceleration, a different reaction can be initiated according to the actual acceleration.
  • different correction profiles can be used for deceleration and acceleration processes or for different speed changes.
  • the signal proportional to the acceleration can be routed to the register controller both as an analog signal and as a digital signal.
  • the object of the invention is further achieved in that information about a beginning and an end of the acceleration phase of the motion control is given to the register control device and that at the beginning of the acceleration phase, the manipulated variable is stored and at the end of the acceleration phase, the manipulated variable is set to a value which is derived from a value at the beginning of the acceleration phase.
  • the value of the manipulated variable can be set to the value present at the beginning of the acceleration phase.
  • the reaction of the register control on the acceleration information during the acceleration phase can be carried out according to the embodiments described above.
  • Register control 1 shows a register control 1 with a motion control 24 for a pressure roller 20 with an external register control 1.
  • Register control 1 acts via a control variable 11 on a converter 23, which supplies a drive motor 21, which in turn moves the pressure roller 20.
  • the movement of the drive motor 21 is registered by a rotary encoder 22 and forwarded via the inverter 23 to the motion controller 24.
  • the register control 1 receives an acceleration signal 13 from the motion controller 24.
  • the acceleration signal 13 can be transmitted in binary (for example as the signal "speed setpoint reached") or as an analog signal representing the actual value of the acceleration.
  • FIG. 2 shows a register control 1 which is integrated in the motion control 24. Both the acceleration signal 13 and the manipulated variable 11 occur only within the motion control 24, whereby a complex communication between different modules can be omitted. In a further development, the acceleration signal 13 can be generated simultaneously with the signal for a speed change of the drive. The time offset by the evaluation of the rotary encoder 22 can then be omitted.
  • FIG 3 shows a register control 1 with a register control device 10, which outputs a manipulated variable 11 to the higher-level control.
  • An acceleration sensor 12 outputs the acceleration signal 13 to the register control device 10 and to a changeover switch 14.
  • a first set of control parameters 16 At a constant rotational speed of the pressure roller acts on the register control device 10, a first set of control parameters 16. If the acceleration signal 13 indicates a deviation from the constant rotational speed, the switch 14 switches to a second set of control parameters 15.
  • These control parameters 15 may be selected to be more dynamic or less dynamic than the control parameters 16 at constant speed.
  • FIG. 4 shows a register control 1 with a register control device 10, in which the changeover switch 14 selects between a correction profile 18 at a constant speed and a correction profile 17 during a acceleration phase.
  • the acceleration signal 13 can also be used to store the manipulated variable 11 at the beginning of the acceleration phase.
  • the register control device 10 can then continue to regulate during the acceleration phase and restore the value of the manipulated variable 11 at its end.
  • the switching to more dynamic control parameters 15 with a storage of the manipulated variable 11 at the beginning of the acceleration and its restoration at the end of the acceleration phase can be advantageously combined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Rotary Presses (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
EP06013301.4A 2005-07-19 2006-06-28 Dispositif de contrôle de registre Active EP1745925B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005033585A DE102005033585A1 (de) 2005-07-19 2005-07-19 Registerregelung

Publications (4)

Publication Number Publication Date
EP1745925A2 true EP1745925A2 (fr) 2007-01-24
EP1745925A3 EP1745925A3 (fr) 2007-04-18
EP1745925B1 EP1745925B1 (fr) 2009-10-07
EP1745925B2 EP1745925B2 (fr) 2016-09-07

Family

ID=37309223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06013301.4A Active EP1745925B2 (fr) 2005-07-19 2006-06-28 Dispositif de contrôle de registre

Country Status (4)

Country Link
US (1) US7552678B2 (fr)
EP (1) EP1745925B2 (fr)
AT (1) ATE444854T1 (fr)
DE (2) DE102005033585A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189288A3 (fr) * 2008-11-25 2011-01-05 Robert Bosch GmbH Procédé de réglage d'une machine de traitement dotée d'au moins un dispositif de réglage

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005033585A1 (de) * 2005-07-19 2007-02-01 Bosch Rexroth Aktiengesellschaft Registerregelung
DE102007017095A1 (de) * 2007-04-10 2008-10-16 Robert Bosch Gmbh Verfahren zum Betreiben einer Druckmaschine
DE102007024323A1 (de) * 2007-05-24 2008-11-27 Robert Bosch Gmbh Verfahren zum Verstellen von Druckmaschinenmodulen
DE102007017096A1 (de) * 2007-04-10 2008-10-16 Robert Bosch Gmbh Verfahren zum Verstellen von Druckmaschinenmodulen
DE102007059066A1 (de) * 2007-12-07 2009-06-10 Robert Bosch Gmbh Verfahren zur Achskorrektur bei einer Verarbeitungsmaschine sowie Verarbeitungsmaschine
KR100953475B1 (ko) * 2008-02-19 2010-04-16 건국대학교 산학협력단 전자소자 연속공정 롤투롤 인쇄를 위한 초정밀 레지스터제어 방법
GB2493750A (en) * 2011-08-17 2013-02-20 Edwards Ltd Apparatus for treating a gas stream
DE102013012708B4 (de) * 2012-09-10 2022-04-21 Heidelberger Druckmaschinen Intellectual Property Ag & Co. Kg Registerverstellung während Rüstvorgängen bei Druckmaschinen
JP7109877B2 (ja) * 2016-05-23 2022-08-01 住友重機械工業株式会社 多色刷印刷システムおよび制御方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037728C1 (fr) 1990-11-27 1992-06-25 Eltromat Gesellschaft Fuer Industrie-Elektronik Mbh, 4817 Leopoldshoehe, De

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US5606913A (en) * 1993-03-16 1997-03-04 Ward Holding Company Sheet registration control
DE4434843A1 (de) * 1994-09-29 1996-04-18 Roland Man Druckmasch Verfahren zur Vermeidung von Passerdifferenzen
JPH09277494A (ja) † 1996-04-11 1997-10-28 Mitsubishi Heavy Ind Ltd ウェブ式多色刷輪転印刷機の見当補正装置
GB9621324D0 (en) * 1996-10-12 1996-11-27 Rockwell Graphic Syst Printing apparatus
JP2000225689A (ja) † 1999-02-04 2000-08-15 Koike Seisakusho:Kk 輪転機の加速度と速度に応じて制御定数を変化させる自動見当合せ制御装置
WO2001035169A1 (fr) * 1999-11-11 2001-05-17 Seiko Epson Corporation Dispositif et procede de formation d'images
DE10132266B4 (de) * 2000-07-11 2015-10-22 Heidelberger Druckmaschinen Ag Verfahren zur Regelung des Übergabepassers in einer Bogenrotationsdruckmaschine
JP4767457B2 (ja) * 2001-09-07 2011-09-07 住友重機械工業株式会社 グラビア印刷機における加減速時の見当誤差発生防止のための制御方法及び制御装置
CN1652938A (zh) * 2002-03-25 2005-08-10 三菱重工业株式会社 能够控制伴随改变印刷速度的图像对准不良、切割对准不良和印刷密度波动的印刷机
DE10360168A1 (de) † 2003-12-20 2005-07-21 Rexroth Indramat Gmbh Verfahren und Vorrichtung zur Korrektur der Lageabweichung eines Transportgutes
DE102005033585A1 (de) * 2005-07-19 2007-02-01 Bosch Rexroth Aktiengesellschaft Registerregelung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037728C1 (fr) 1990-11-27 1992-06-25 Eltromat Gesellschaft Fuer Industrie-Elektronik Mbh, 4817 Leopoldshoehe, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189288A3 (fr) * 2008-11-25 2011-01-05 Robert Bosch GmbH Procédé de réglage d'une machine de traitement dotée d'au moins un dispositif de réglage

Also Published As

Publication number Publication date
DE102005033585A1 (de) 2007-02-01
EP1745925B1 (fr) 2009-10-07
US7552678B2 (en) 2009-06-30
DE502006005015D1 (de) 2009-11-19
US20070017398A1 (en) 2007-01-25
EP1745925A3 (fr) 2007-04-18
EP1745925B2 (fr) 2016-09-07
ATE444854T1 (de) 2009-10-15

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