EP1980396A2 - Procédé destiné déplacer des modules de machines d'impression - Google Patents

Procédé destiné déplacer des modules de machines d'impression Download PDF

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Publication number
EP1980396A2
EP1980396A2 EP08006962A EP08006962A EP1980396A2 EP 1980396 A2 EP1980396 A2 EP 1980396A2 EP 08006962 A EP08006962 A EP 08006962A EP 08006962 A EP08006962 A EP 08006962A EP 1980396 A2 EP1980396 A2 EP 1980396A2
Authority
EP
European Patent Office
Prior art keywords
printing
register
printing press
dynamic
timers
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.)
Withdrawn
Application number
EP08006962A
Other languages
German (de)
English (en)
Other versions
EP1980396A3 (fr
Inventor
Holger Schnabel
Stephan 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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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
Priority claimed from DE200710017096 external-priority patent/DE102007017096A1/de
Priority claimed from DE102007024323A external-priority patent/DE102007024323A1/de
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1980396A2 publication Critical patent/EP1980396A2/fr
Publication of EP1980396A3 publication Critical patent/EP1980396A3/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • 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

Definitions

  • the present invention relates to a method for adjusting printing press modules, a printing press, a computer program and a computer program product.
  • the publication DE 10 2005 019 566 A1 describes in this respect a drive system for a printing press with a plurality of individually driven printing units, which are provided with Lekssregisterverstellvorraumen.
  • a register deviation by an adjustment of the corresponding printing unit.
  • the register controllers behind them must also become active.
  • a static coupled adjustment strategy of the printing units or draw rollers is realized for register correction.
  • An upstream and a downstream coupling strategy must be performed separately.
  • the removal of the web tension difference, the registers of the subsequent printing units are changed so that register controller must compensate for the resulting dynamic register errors.
  • the invention relates to a method for dynamically adjusting at least one printing press module of a printing press for correcting a first register. Here only the first register is changed. Further registers are decoupled from this dynamic adjustment by coupling correction values for other printing press modules taking into account dynamic timers.
  • printing press modules with different amplitudes and / or different time behavior can be adjusted.
  • all other registers are decoupled from the register to be adjusted.
  • a downstream control strategy can also be carried out, with registers belonging to the downstream of the first register or are decoupled (registers in front of the register to be adjusted are decoupled per se).
  • the correction values for example values for an angle correction, can be provided taking into account a correction value of the at least one first printing press module.
  • the dynamic timers are adapted and / or multiple timers combined with each other, whereby proportional, differential and / or integral dynamic timers of the printing press modules can be considered.
  • the printing machine according to the invention is designed for the dynamic adjustment of at least one printing press module for the correction of a first register.
  • the press only changes this first register.
  • Further registers decouple the printing press by coupling correction values for further printing press modules taking into account dynamic timing elements.
  • the at least one printing machine module of the printing press is designed as a printing unit.
  • the printing press is designed to carry out at least one step, as a rule of all steps, of the method according to the invention.
  • the invention also relates to a computer program with program code means to all steps of a perform inventive method when the computer program on a computer or a corresponding processing unit, in particular in a printing machine according to the invention, is executed.
  • the inventively provided computer program product with program code means which are stored on a computer-readable data carrier is designed to perform all the steps of a method when the computer program is executed on a computer or a corresponding computing unit, in particular in a printing press.
  • the dynamic timing elements to be considered are controlled and thus regulated or controlled.
  • this may mean that constants, factors or amplitudes of the timers, which usually have a different time behavior, are controlled and thereby, for example, adjusted.
  • an adjustment of the printing unit takes place in one embodiment with the register deviation.
  • All subsequent printing units and / or draw rollers can be dynamically taken into account different timing elements, such as proportional terms P, PT1, PT2, PTn, differential elements DT1, DTn, Tt, or integral terms It1, Itn, are adjusted for the printing press modules.
  • Prior printing units and / or drawing-in units are adjusted simultaneously with positioning commands, e.g. by inverse control commands, which are generally provided with a factor or can be selected dynamically.
  • the underlying printing units and / or draw rollers are adjusted with the same or different decoupling. This can i.a. with different amplitude and / or different timing of the dynamic timers, e.g. P, PT1, PT2, PTn as proportional timers, DT1, DTn as differential timers, Tt, IT1, ITn as integral timers.
  • Different decoupling members can be combined here.
  • adjustment movements of printing press modules for register correction can be completely decoupled.
  • This in one embodiment means that only the corresponding register y (i-1, i) changes. All other registers considered in the regulation remain unaffected by this change.
  • a register error y (i, j) in the present specification means that the register error between the printing unit i and j is considered.
  • the invention can be used for coupled dynamic impression cylinder adjustments for register correction in a printing machine, in particular intaglio printing machine or inline flexographic printing machine, to take account of web tension and register control.
  • One possible application of the invention is in the printing and in the processing of paper or fabric webs and generally provided by material webs, wherein a control of processing registers, eg color registers as To be controlled register can be performed so that an optimized control and decoupling of the processing register is possible.
  • a control of processing registers eg color registers as To be controlled register can be performed so that an optimized control and decoupling of the processing register is possible.
  • the web for which the method is feasible may generally be paper, cloth, paperboard, foil, plastic or other sheet-like printable material.
  • the printing press is typically a shaftless driven printing press, i. that each printing press module designed in particular as a printing unit can be adjusted individually.
  • the method is, for example, also suitable for operating a web-fed printing press.
  • at least one register control, register correction and / or appropriate handling of a printing ink as well as an adjustment of printing press modules can be performed. This results, inter alia, in optimizing the coupling of the printing units with respect to the registration error.
  • the decoupling of the register adjustment can relate in design directly adjacent registers, so that each color to their predecessor color, for example.
  • Y (1,2), y (2,3), ..., y (i-1, i), y (i, i + 1), ..., y (n-1, n) can be controlled.
  • the adjustment of a printing cylinder i and an associated change of the register y (i-1, i) is usually decoupled by the adjustment of the following printing units, so that all other registers, y (1,2), ..., y ( i-2, i-1), y (i, i + 1), y (i + 1, i + 2), etc., remain unchanged.
  • a registration deviation on a printing cylinder i can be achieved by an adjustment of a printing machine module designed as an infeed unit and of all preceding printing cylinders 1,..., (I-1), as well as by adjustment of all subsequent printing cylinders i + 1, that only the register y (i-1, i) changes and all other directly adjacent registers y (1,2) ⁇ , y (i-2, i-1), y (i, i + 1), y (i + 1, i + 2), etc. remain unchanged and are thus decoupled from the register change.
  • the decoupling of register adjustment is made to a stand color s, ie all registers are regulated to a previously defined color.
  • a register deviation on a printing cylinder i by an adjustment of the intake train and all preceding printing cylinder 1, ..., (i-1) and / or by adjusting all subsequent printing cylinder i + x1, ..., n in the manner that only the register y (s, i) changes and all other registers y (s, 2),..., y (s, i-1), y (s, i + 1),. . remain unchanged with respect to the stand color s and are thus decoupled from the register adjustment.
  • the dynamic adjustment or dynamic co-adjustments of the printing units can be weighted.
  • the dynamic co-adjustment of the corresponding printing units can be done unweighted.
  • the dynamic Mitver ein by combining a plurality of dynamic timers, preferably proportional timing elements PT1, PTn, differential timers DT1, DTn, integral timers IT1, ITn, Allpassglieder or deadtime terms and / or weighting members done.
  • the decoupling can be done in an embodiment of the invention with a combination of stand color and color / predecessor color.
  • the decoupling strategy is changed from production to production. It is also possible that the decoupling strategy is changed during the printing process.
  • a change during different production phases and different productions such as. Acceleration phase, stationary printing processes and production to follow-up production is possible.
  • production-specific features e.g. Substrate, temperature, humidity, web length, printing unit distance, press speed, etc. are reacted.
  • an automatic or automatic length adaptation and / or adaptation of dynamic timers is feasible. For this reason, it is useful in one embodiment of the invention to automatically measure the lengths between printing units and adjust the corresponding time constants of the timers, so that the dynamic timers are not distorted by length changes or incorrect length input.
  • the parameters of the dynamic coupling can be adapted to the printing press speed.
  • the parameters of the dynamic coupling can be adapted proportionally to the reciprocal press speed. It is also possible to adapt the parameters of the dynamic coupling to the material web length.
  • the parameters of the dynamic coupling can be adapted in particular proportionally to the web length and / or web width.
  • the parameters of the coupling can also be adapted to the substrate type.
  • Additional clamping points for example by driven cooling rollers, driven transport rollers and / or driven guide rollers as further printing machine modules can be taken with in a control strategy.
  • Adaptation of the parameters and timers may be accomplished using fuzzy techniques, model-based techniques, e.g. Model follow-up, observer techniques, or Kalman techniques.
  • the method can be applied, for example, in gravure printing machines, inline flexo, commercial printing presses or even newspaper roll printing machines.
  • a web-fed printing machine can be designed as a shaftless printing machine with individual motors and / or drives, individual drives, on the individual printing units or web transport rollers or cooling rollers.
  • one printing cylinder can be driven by a single drive.
  • the impression cylinder eg impression roller, can be driven individually or not directly and thus indirectly driven by the printing cylinder.
  • a change is made within the printing press.
  • the first colors are regulated to the color / predecessor color, as in a gravure printing machine often bright colors are printed at the beginning and there may be contrast problems with the sensors, thus can be regulated from a regular time in this variant to a stand color ,
  • dynamic and static couplings due to machine or material behavior can combine dynamic and static couplings with one another by changes in factors to compensate for these effects, particularly for the timers.
  • FIG. 1 1 shows a schematic representation of a detail of a printing machine 2.
  • This printing machine 2 comprises guide and / or cooling rollers 4 and three printing units 6, 8, 10, each printing unit 6, 8, 10 a impression roller 12, 14, 16 and a printing cylinder 18, 20, 22 comprises.
  • a material web 24 to be printed moves between the impression rollers 12, 14, 16 and the printing cylinders 18, 20, 22 of the printing units 6, 8, 10 and runs over the guide rollers 4.
  • FIG. 2 In the in FIG. 2 is an axis 28 for a register error for curves 30, 32, 34 of the individual registers y (6,8), y (8,10), y (6,10) according to the in FIG. 1 shown applied over a time axis 36.
  • a first register y (6,8) changes in the desired manner.
  • neither of the other two registers y (6,10) and y (8,10) remains unchanged.
  • the second register y (8,10) returns to the starting position, but the dynamic register error must be corrected by the register controller in order to avoid waste. Since also the third register y (8,10) changes, this control strategy is also not suitable for color control.
  • FIGS. 3 and 4 each show a detail of an embodiment of a printing machine 100 according to the invention.
  • the printing machine 100 includes guide and / or cooling rollers 102, a first printing unit 104, a second printing unit 106, a third printing unit 108, and a fourth printing unit 110.
  • Each of these printing units 104, 106 , 108, 110 comprises a impression roller 112, 114, 116, 118 and a printing cylinder 120, 122, 124, 126.
  • a web of material 128 to be printed by the printing machine 100 moves between the impression rollers 112, 114, 116, 118 and 16 during a printing operation the printing cylinders 120, 122, 124, 126 of the printing units 104, 106, 108, 110 and passes over the guide and / or cooling rollers 102nd
  • FIG. 3 describes a downstream control strategy with dynamic decoupling.
  • an adjustment of the first printing unit 106 takes place with the register deviation.
  • All subsequent printing press modules, here the printing units 108, 110 are dynamically adjusted by correction values 132, 134. These are values 132, 134 for angle corrections derived from the correction value 130 used for the adjustment of the first printing unit 106, the derivation taking into account dynamic timers 136, 138 having different amplitudes and different time behavior.
  • dynamic timers 136, 138 are proportional terms P, PT1, PT2, PTn, differential terms DT1, DTn, Tt, and integral terms IT1, ITn each having different factors and time constants.
  • FIG. 4 shows a schematic representation of an embodiment for an upstream control strategy with dynamic decoupling, which can be performed for a stand color as well as for a color / predecessor color.
  • dynamic timers 140, 142, 144 are provided, each with different factors and time constants.
  • a second printing unit 106 where the register deviation occurs, is not adjusted here.
  • the first printing unit 104 with an infeed mechanism lying in front of it is simultaneously adjusted via setting commands by a correction value 146; these are generally factored and / or dynamic time elements 140, here inverse positioning commands.
  • the underlying printing units 108, 110 which comprise draw rollers, are adjusted with equal or different decoupling by correction values 148, 150, which are values for angle corrections. This is done z. B. with different amplitude, different factors and time constants and / or different timing for the thereby to be considered timers 140, 142, 144, e.g. P, PT1, PT2, ..., PTn, DT1, DTn, Tt, IT1, ..., ITn.
  • Different decoupling elements are combined here.
  • a color control can be performed.
  • In this case for example, is regulated to a fixed color.
  • the printing unit 104 lying in front of it is adjusted with the feed mechanism simultaneously with setting commands which are provided with factors, here by means of inverse positioning commands.
  • the underlying printing units 108, 110 with the draw rollers can be adjusted with the same or different decoupling. This can be done, for example, with different amplitude and / or different time behavior, the dynamic time elements 140, 142, 144, eg P, PT1, PT2, PTn, DT1, DTn, Tt, IT1 ITn.
  • different Decoupling members can in this case be combined with the dynamic timers 140, 142, 144.
  • the upstream state color control differs in the timers 140, 142, 144 and their combination from the upstream color / precursor color control.
  • FIG. 5 The diagram shown is an axis for a register error for curves 154, 156, 158 for the individual registers y (104, 106), y (106, 108), y (104, 108) in a decoupling in a color / precursor color control, for example according to FIG FIG. 4 plotted over a time axis 160.
  • FIG. 6 The diagram shown is an axis 162 for a register error for curves 164, 166, 168 for individual registers y (104, 106), y (106, 108), y (104, 108) for decoupling in an adjustment for the standard color regulation according to FIG. 4 plotted over a time axis 170.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
EP08006962A 2007-04-10 2008-04-08 Procédé destiné déplacer des modules de machines d'impression Withdrawn EP1980396A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710017096 DE102007017096A1 (de) 2007-04-10 2007-04-10 Verfahren zum Verstellen von Druckmaschinenmodulen
DE102007024323A DE102007024323A1 (de) 2007-05-24 2007-05-24 Verfahren zum Verstellen von Druckmaschinenmodulen

Publications (2)

Publication Number Publication Date
EP1980396A2 true EP1980396A2 (fr) 2008-10-15
EP1980396A3 EP1980396A3 (fr) 2011-08-24

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Application Number Title Priority Date Filing Date
EP08006962A Withdrawn EP1980396A3 (fr) 2007-04-10 2008-04-08 Procédé destiné déplacer des modules de machines d'impression

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US (1) US20080250962A1 (fr)
EP (1) EP1980396A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009016206A1 (de) * 2009-04-03 2010-10-14 Robert Bosch Gmbh Verfahren zur Bahnspannungseinstellung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008035639A1 (de) * 2008-07-31 2010-02-04 Robert Bosch Gmbh Verfahren zur Modellierung eines Regelkreises für eine Bearbeitungsmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005019566A1 (de) 2005-04-27 2006-11-09 Bosch Rexroth Aktiengesellschaft Druckmaschine und Verfahren zur Registerkorrektur

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4147104A (en) * 1977-01-10 1979-04-03 Zerand Corporation Key color control system for printing press
US5455764A (en) * 1993-09-09 1995-10-03 Sequa Corporation Register control system, particularly for off-line web finishing
DE19623224C1 (de) * 1996-06-11 1997-09-11 Roland Man Druckmasch Antrieb für eine Druckmaschine
DE59809058D1 (de) * 1997-06-02 2003-08-28 Wifag Maschf Registerhaltige Abstimmung von Druckzylindern einer Rollenrotationsmaschine
DE59801305D1 (de) * 1998-04-16 2001-10-04 Abb Ind Ag Baden Verfahren zur selbsteinstellenden Farb- und Schnittregistersteuerung in Rotationsdruckmaschinen mit mehreren Bahnen
DE10243454C5 (de) * 2002-09-19 2009-10-08 Koenig & Bauer Aktiengesellschaft Antriebsvorrichtung einer Bearbeitungsmaschine
DE102004034431A1 (de) * 2004-07-15 2006-02-09 Windmöller & Hölscher Kg Registervorsteuerung bei Geschwindigkeitsänderung
DE102004052181B3 (de) * 2004-07-23 2006-01-19 Koenig & Bauer Ag Verfahren zur Erkennung eines Bahnrisses einer in einer Rollendruckmaschine bedruckten Materialbahn
US7963225B2 (en) * 2005-05-04 2011-06-21 Koenig & Bauer Aktiengesellschaft Method for controlling and/or adjusting a register in a printing machine and a device for controlling and/or adjusting a circumferential register

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005019566A1 (de) 2005-04-27 2006-11-09 Bosch Rexroth Aktiengesellschaft Druckmaschine und Verfahren zur Registerkorrektur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009016206A1 (de) * 2009-04-03 2010-10-14 Robert Bosch Gmbh Verfahren zur Bahnspannungseinstellung

Also Published As

Publication number Publication date
US20080250962A1 (en) 2008-10-16
EP1980396A3 (fr) 2011-08-24

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