EP2002980B1 - Procédé destiné au fonctionnement d'une presse - Google Patents

Procédé destiné au fonctionnement d'une presse Download PDF

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Publication number
EP2002980B1
EP2002980B1 EP08006971.9A EP08006971A EP2002980B1 EP 2002980 B1 EP2002980 B1 EP 2002980B1 EP 08006971 A EP08006971 A EP 08006971A EP 2002980 B1 EP2002980 B1 EP 2002980B1
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EP
European Patent Office
Prior art keywords
printing press
automation device
register
printing
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.)
Revoked
Application number
EP08006971.9A
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German (de)
English (en)
Other versions
EP2002980A2 (fr
EP2002980A3 (fr
Inventor
Stephan Schultze
Holger Schnabel
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
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Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
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Publication of EP2002980A3 publication Critical patent/EP2002980A3/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
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/70—Driving devices associated with particular installations or situations
    • B41P2213/73—Driving devices for multicolour presses
    • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/90—Register control

Definitions

  • the present invention relates to a method of operating a printing press, an automation apparatus and a printing press, and a computer program and a computer program product.
  • register control In the field of printing machines, in particular in gravure printing machines, inline flexo or commercial printing presses, in order to obtain a good printing result, colors must be printed directly one above the other. If register deviations occur at the longitudinal register or color register, register control can usually remedy this register deviation. For this purpose, control strategies are necessary that decouple an adjustment static and dynamic. With the help of these control strategies, setpoints for a decoupled control as possible are calculated. So far, such a calculation via an independent Registerregelungseinrichtunü calculated from register deviations manipulated variables for the fastest possible compensation of register error in webs.
  • a web to be printed can be made of paper, fabric, cardboard, foil, rubber and thus usually made of any sheet material.
  • the register control device and the machine control are executed separately with a motion control (PLC), i. Different devices are provided.
  • PLC motion control
  • Process data from the machine controller to the register control means and register controller data from the register control means to the machine control are normally transmitted via these interfaces.
  • a correspondingly increased number of control actions, which reach the process via the machine control, require the register control device.
  • Such communication causes time delays, thus limiting the dynamics of register control.
  • Printing machines with register control and motion control are in the EP 0 930 552 A2 and the WO 2004/028805 A1 disclosed.
  • the publication DE 10 2005 019 566 A1 describes a drive system for a printing press with a plurality of individually driven printing units, which are provided with Lekssregisterverstellvorraumen.
  • This drive system has a plurality of Meßwertauswertvortechnischen for adjusting the Leksregisterverstellvortechnischen all before or after a first printing unit lying printing units for correcting a register deviation on the first printing unit.
  • the calculation of the correction values of the register error has hitherto been carried out by the register control device.
  • the register deviation is detected by means of sensors directly behind sit the respective printing units, recorded and passed on to the register control device. This calculates the corresponding manipulated variables from a control strategy. These manipulated variables must now each be transferred to equipment for machine control.
  • the invention relates to a method for operating a printing press, in which a control of at least one register and a control of at least one printing press module of the printing press are carried out jointly by an automation device.
  • a control of a movement of the at least one printing press module is performed by the automation device. It can u. a. exact setpoint values for the movement of the at least one printing press module, for example, according to a virtual master axis, are generated.
  • the automation device makes it possible to control a sequence of a printing process.
  • a provided for control and thus to control or control of the process module (PLC) of the automation device can, for example, after logical queries, control interfaces of the automation device, via the correction values and / or timers for the at least one printing press module by input and / or output be replaced.
  • PLC process module
  • a decoupled dynamic adjustment of printing press modules is performed.
  • only a first register is changed, wherein further registers are decoupled from the correction process of the first register by coupling of correction values, in particular taking into account dynamic timers, for other printing press modules.
  • the automation device is designed to cooperate with a printing press, wherein functionalities for controlling at least one printing press module and for controlling registers are integrated in the automation device.
  • the automation device typically comprises a module or a device for a control and thus control and / or regulation of at least one printing press module and a device for a control and thus control and / or regulation of registers.
  • the automation device is, inter alia, suitable for carrying out a control of a movement of the at least one printing press module.
  • the automation device can be configured in a variant to calculate data for controlling the at least one printing press module and for controlling or regulating the registers. With the automation device, a sequence of the printing press can be controlled.
  • the printing press according to the invention has an automation device according to the invention.
  • the invention further relates to a computer program with program code means in order to carry out all the steps of a method according to the invention when the computer program is executed on a computer or a corresponding arithmetic unit, in particular in an automation device according to the invention.
  • the computer program product according to the invention with program code means which are stored on a computer-readable data carrier is suitable for carrying out all the steps of a method according to the invention when the computer program is run on a computer or a corresponding computing unit, in particular in an inventive computer program.
  • Automation device is running.
  • the automation device according to the invention generally interacts with the printing machine according to the invention or at least one printing press module.
  • the automation device according to the invention can be designed as a component of the printing press according to the invention. All steps of the method according to the invention can be carried out by the automation device according to the invention and / or the printing press according to the invention. Functions of the automation device according to the invention and / or the printing press according to the invention can be realized as steps or partial steps of the method according to the invention.
  • the integrated automation device which likewise can predefine and thus control the movement of the at least one printing press module and therefore also the printing press.
  • An external register control device with complex communication interfaces can therefore be dispensed with.
  • Inline flexographic or commercial printing press or newspaper roll printing machine in particular in the context of a control of a web tension and processing registers possible.
  • An application of the invention is possible in printing and processing of paper webs, panels and thus generally of webs.
  • This can u.a. an optimized regulation and decoupling of the as processing registers, e.g. Color register, trained register can be realized by integration of the functions for motion control and register control in the automation device.
  • processing registers e.g. Color register
  • trained register can be realized by integration of the functions for motion control and register control in the automation device.
  • the module for register control and a control module (motion control) designed for machine control for the at least one printing press module which may comprise a module for controlling the movement of a process (PLC) of the at least one printing press module
  • PLC process
  • an improvement of the decoupling of register adjustment can also be achieved the correction values may also be calculated like the parameters, eg timers, for the machine movement in the automation device.
  • a coupled dynamic adjustment of the printing cylinder for decoupling an impression cylinder adjustment on a printing press module designed as a printing unit is likewise calculated by the automation device.
  • the independent length adaptation can be done by the automation device with adaptation of dynamic timers.
  • HMI human-machine interface, human-machine interface
  • the dynamic adjustment to be carried out can be integrated with the HMI via a so-called soft control by integration of the motion control and the HMI in a visualization / control device as a component of the automatic device and / or the printing press.
  • the automation device may also include only a register control module and a module for the sequence control (PLC) and / or the motion control (motion control) for implementing the machine control.
  • the movement control can u. a. provide dynamic manipulated variables for the decoupling when used to perform a color control.
  • register deviations the setpoint for register adjustment is calculated.
  • the precontrol values are likewise calculated in the motion logic control and forwarded to the following printing press modules, such as printing units, web transport axes, draw rolls, cooling rolls or other processing axes, eg windup axes, so that the register adjustment of a first spinning machine module is independent of the register adjustments for the other printing machine modules is decoupled.
  • a register error y (i, j) in the present specification means that the register error between the printing unit i and j is considered.
  • a fixed state color is regulated, in this case the color 1, so that only the register y (1,2) changes in the event of a register deviation on a printing cylinder 2, the registers y (1,3), y (1,4) etc. remain unchanged.
  • This is done by means of weighted and unweighted dynamic time elements, ie of proportional elements P, PT1, PT2,..., PTn, of differential elements DT1,..., DTn, Tt, integral elements IT1,..., ITn and all-pass elements.
  • the state color control can be calculated downstream and thus for subsequent printing press modules by the automation device, ie, for example, a specific or a controlled printing cylinder and all subsequent impression cylinders and / or draw rolls dynamically with different amplitudes and different time behavior of the time songs, eg P, PT1, PT2, ..., PTn, DT1, ..., DTn, Tt, IT1, ..., ITn and all-pass elements.
  • a calculation is alternatively or additionally upstream for previous printing press modules by the automation device possible, ie the printing unit at which the register deviation occurs is not adjusted, but all upstream printing units and / or all underlying printing units are dynamically adjusted with different amplitudes and different timing.
  • the machine control can combine dynamic and static couplings due to machine and / or material behavior. This applies, for example, the friction, acceleration and other factors that influence the movement of the printing press or their printing press modules. Due to such printing press influences, dynamic and static couplings can be combined by the machine control with each other by changing the factors to compensate for these influences.
  • the machine control can calculate a dynamic decoupling strategy for a combination of color / predecessor color and state color control in a variant. This can be done during a change during different production phases, eg acceleration phase, stationary printing process as well as different productions.
  • a change is hereby feasible within the automation device.
  • the first colors are regulated to a color / predecessor color, as in a gravure printing machine often bright colors are printed at the beginning and it can lead to contrast problems with the sensors, from the center is then regulated, for example, the stand color.
  • the machine control in the automation device can also decoupling strategies in regulation Calculate to each other colors, for example, for y (1,2), y (1,3), y (2,4), y (3,5) etc.
  • the register control is integrated in the machine control of the automation device, which thus controls the movement and the machine sequence in addition to the register control.
  • This can be a combination with a human-machine interface (HMI) of the printing press, for example, a control center, sucegn, with the man-machine interface of the register control is integrated into the printing machine HMI.
  • HMI human-machine interface
  • Such a method may be performed integrated on a processor of a printing machine HMI or the register control device HMI by soft control.
  • the register control in this case is performed by a combination of register control and printing machine operation, or register control and motion control.
  • the control unit decoupling the printing machine modules designed as printing units with respect to a registration error can be carried out by the autonegation device.
  • the automation device can each color with respect to their VörgGoodde y (1,2), y (2,3), ..., y (iJ, i), y (i, 1 + 1), ..., y (n-1, n).
  • an adjustment of a printing cylinder i and an associated therewith by the automation device Modification of the register y (i-1, i) by the adjustment of the following printing units and optionally also the web transport axes, draw rollers and other processing axes, in particular winding axes are decoupled, all other registers y (1,2), ..., y ( i-2, i-1), y (i, i + 1), y (i + 1, i + 2), ... remain unchanged.
  • a register deviation on a printing cylinder i by the automation device by an adjustment of the infeed, other processing axes, in particular winding and Abwickelachsen and all preceding printing cylinder 1, ..., (i-1), as well as by adjustment of all subsequent printing cylinders i + 1, ...., n compensated in such a way 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), ... remain unchanged and are thus decoupled from the register change.
  • the decoupling of register adjustment that can be carried out by the automation device can also be carried out on a stand color s, i. all registers are regulated to a predefined color.
  • An adjustment of a printing cylinder i and an associated change of the register y (s, i) is decoupled by the adjustment of the subsequent printing units, so that all other registers y (s, 2), ..., y (s, i-1 ), y (s, i + 1), y (s, i + 2), ... remain unchanged.
  • the adjustments of the corresponding printing units can be done dynamically.
  • a dynamic co-adjustment of these printing units can be weighted or unweighted via the dynamic timers.
  • the dynamic co-adjustment can also be done by combining several dynamic timers and weighting elements.
  • the dynamic timers provided here are preferably proportional elements PT1,..., PTn, differential elements DT1,..., DTn and integral elements IT1,..., ITn, all-pass elements or dead time elements.
  • the decoupling can be performed with a combination of stand color and color / predecessor color.
  • the decoupling strategy can be changed from production to production and adapted in each case suitably, so that the decoupling strategy, floor color and / or color / predecessor color, for example, be changed during the printing process.
  • dynamic and static coupling can be responded to production-specific characteristics, such as substrate, temperature, humidity, web length, printing unit spacing and / or machine speed. In this case, an independent length adaptation and, as a result, an independent adaptation of the dynamic time elements can be carried out.
  • parameters of the dynamic coupling to the machine speed can also be adapted. This can be done, for example, proportionally to the reciprocal of the machine speed as a function of the length of the product web, in particular in proportion to the length of the product web. Furthermore, parameters of the coupling can be adapted to the substrate type or to the web width.
  • a web-fed printing press used in an implementation of the method can be designed as a shaftless printing press with individual motors / drives, individual drives on the individual printing units or web transport rollers or cooling rollers.
  • Such a shaftless web-fed printing machine drives the printing cylinder by single drive in the printing unit.
  • the counter-pressure cylinder, eg impression roller can be driven individually or not driven directly and therefore indirectly.
  • the control of a register described herein and the generation of nominal values of a virtual master axis for the printing press or the printing press module can be carried out.
  • register control signals can be applied to the setpoint values of the virtual master axis generated in the automation device, and then the setpoint values adjusted in this way to the corresponding printing press module be forwarded. This can facilitate a simplified design and a sharper communication.
  • FIG. 1 schematically illustrated detail of an embodiment of a printing press 2 according to the invention comprises a first, second; third and fourth printing unit 4, 6, 8, 10, each with a printing cylinder 12, 14, 16, 18 and a co-operating with the impression cylinder 12, 14, 16, 18, impression rollers 20, 22, 24, 26.
  • this printing machine Leit- and / or chill rolls 28, 30, 32.
  • a material web 34 to be printed moves between the printing cylinders 12, 14, 16, 18 and the impression rollers 20, 22, 24, 26 and wraps around the guide and / or cooling rollers 28, 30, 32.
  • the printing press 2 also has an embodiment of an automation device 36 according to the invention, which is designed both for the register of the material web 34 and at least one printing press module of the printing press. 2, that is, in this case, at least one impression cylinder 12; 14, 16, 18, impression rollers 20, 22, 24, 26 and / or at least one guide roller 28, 30, 32, and thus to control and / or fix.
  • an automation device 36 designed both for the register of the material web 34 and at least one printing press module of the printing press. 2
  • Such a check makes it possible to change or correct functions and thus also movements of the at least one printing press module and the registers.
  • a register deviation at the printing unit 6 is supplied to the automation device 36. This calculates for the subsequent printing units 8, 10 by means of dynamic timers 38, 40, their combination and by means of different amplitudes, the respective setpoints for a precontrol and gives them to the subsequent printing units 8, 10 on.
  • a decoupled dynamic Adjustment of printing press modules achieved.
  • further registers are by coupling of correction values 42, 44, 46, here of values for angular corrections, taking into account the timing elements 38, 40 for the printing press modules, ie the Printing units 4, 6, 8, 10 and their components, decoupled from each other.
  • FIG. 2 shows a plot of an axis 50 for register error correction values for curves 52, 54, 56 of individual registers y (1, 2), y (2, 3) y (1, 4) plotted against a time axis 58.
  • the color balance control can also be calculated upstream by the automation device, i. the printing unit, where the register deviation occurs, is notverver Mask, but all upstream printing units and the infeed mechanism and all underlying printing units are dynamically adjusted with different amplitudes and different timing.
  • the automation device can calculate dynamic manipulated variables for the decoupling in a color / predecessor color control. This is done by means of a motion logic control of the automation device, which controls the movement and the machine sequence. For register deviations, the setpoint for the register adjustment is calculated.
  • the precontrol values are also calculated in the motion logic control of the automation device and forwarded to the subsequent printing units and thus printing press modules, so that the register adjustments of the printing units are decoupled.
  • the color / predecessor color is regulated, so that only register y (1,2) changes in register deviation on the second printing cylinder, but the registers y (2,3), y (3,4) etc. remain unchanged ,
  • weighted and unweighted dynamic timers e.g. proportional timers P, PT1, PT2, ..., PTn, differential timers DT1, ..., OTn, Tt, integral timers IT1, ..., ITn and all-pass members.
  • the color / predecessor color control can i.a. downstream or downstream by the automation device, i. e. the impression cylinder itself and all subsequent rolls, such as impression cylinders, draw rolls, chill rolls, web feed rolls and other processing axes, e.g. Winders are dynamically with different amplitudes and different timing, e.g. P, PT1, PT2, ..., PTn, DT1, ..., DTn, Tt, IT1, ..., Itn and allpass elements, adjusted.
  • the automation device i. e. the impression cylinder itself and all subsequent rolls, such as impression cylinders, draw rolls, chill rolls, web feed rolls and other processing axes, e.g. Winders are dynamically with different amplitudes and different timing, e.g. P, PT1, PT2, ..., PTn, DT1, ..., DTn, Tt, IT1, ..., Itn and allpass elements, adjusted.
  • the color / predecessor color control can also be calculated upstream or upstream by the automation device, ie the printing unit at which the register deviation occurs, is not adjusted, instead, all upstream printing units and the infeed mechanism and all underlying printing units are dynamic with different amplitudes and adjusted to different time behavior.

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

Claims (10)

  1. Procédé de conduite d'une machine d'impression (2) dans laquelle une nappe de matière est imprimée, le contrôle d'au moins un registre et le contrôle du déplacement d'au moins un module de la machine d'impression (2) étant exécutés conjointement par un appareil d'automatisation (36),
    caractérisé en ce que
    seul un premier registre est modifié,
    en ce que par l'opération de correction du premier registre, d'autres registres sont découplés par injection de valeurs de correction (42, 44, 46) pour d'autres modules de la machine d'impression, en particulier en tenant compte d'organes temporels dynamiques (38, 40), de sorte que les autres registres restent inchangés, et
    en ce que le ou les modules de la machine d'impression sont un ensemble d'impression (4, 6, 8, 10), un axe de transport de la nappe, un cylindre de traction ou un cylindre de refroidissement (28, 30, 32).
  2. Procédé selon la revendication 1, dans lequel des valeurs de consigne du déplacement du ou des modules de la machine d'impression sont produites.
  3. Procédé selon l'une des revendications précédentes, dans lequel un contrôle du déroulement d'une opération d'impression est exécuté par l'appareil d'automatisation (36).
  4. Appareil d'automatisation configuré pour coopérer avec une machine d'impression (2),
    des fonctions permettant le contrôle du déplacement d'au moins un module de la machine d'impression et le contrôle de registre étant intégrées dans l'appareil d'automatisation (36),
    le ou les modules de la machine d'impression étant un ensemble d'impression (4, 6, 8, 10), un axe de transport de nappe, un cylindre de traction ou un cylindre de refroidissement (28, 30, 32),
    caractérisé en ce que
    l'appareil d'automatisation est configuré pour que l'opération de correction du premier registre ne modifie qu'un premier registre et découple d'autres registres en injectant des valeurs de correction (42, 44, 46) pour d'autres modules de la machine d'impression, en particulier en tenant compte d'organes temporels dynamiques (38, 40), de sorte que les autres registres restent inchangés.
  5. Appareil d'automatisation selon la revendication 4, caractérisé en ce qu'il comprend un dispositif de contrôle d'au moins un module de la machine d'impression et un dispositif de contrôle des registres.
  6. Appareil d'automatisation selon l'une des revendications 4 à 5, caractérisé en ce qu'il est configuré pour calculer des données de contrôle du ou des modules de la machine d'impression ainsi que pour la régulation des registres.
  7. Appareil d'automatisation selon l'une des revendications 4 à 6, configuré pour commander le fonctionnement de la machine d'impression (2).
  8. Machine d'impression présentant un appareil d'automatisation selon l'une des revendications 4 à 7.
  9. Programme informatique doté de moyens de code de programme qui permettent d'exécuter toutes les étapes d'un procédé selon l'une des revendications 1 à 3 lorsque le programme informatique est exécuté sur un ordinateur ou une unité de calcul appropriée, en particulier dans un appareil d'automatisation (36) selon l'une des revendications 4 à 7.
  10. Produit de programme informatique doté de moyens de code de programme conservés en mémoire sur un support de données lisibles par ordinateur et qui permettent d'exécuter toutes les étapes d'un procédé selon l'une des revendications 1 à 3 lorsque le programme informatique est exécuté sur un ordinateur ou une unité de calcul appropriée, en particulier dans un appareil d'automatisation (36) selon l'une des revendications 4 à 7.
EP08006971.9A 2007-04-10 2008-04-08 Procédé destiné au fonctionnement d'une presse Revoked EP2002980B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007017095A DE102007017095A1 (de) 2007-04-10 2007-04-10 Verfahren zum Betreiben einer Druckmaschine

Publications (3)

Publication Number Publication Date
EP2002980A2 EP2002980A2 (fr) 2008-12-17
EP2002980A3 EP2002980A3 (fr) 2011-08-03
EP2002980B1 true EP2002980B1 (fr) 2014-06-11

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ID=39744168

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EP08006971.9A Revoked EP2002980B1 (fr) 2007-04-10 2008-04-08 Procédé destiné au fonctionnement d'une presse

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Country Link
US (1) US20090293746A1 (fr)
EP (1) EP2002980B1 (fr)
CN (1) CN101284442B (fr)
DE (1) DE102007017095A1 (fr)
ES (1) ES2474692T3 (fr)

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DE102008056132A1 (de) 2008-11-06 2010-05-12 Robert Bosch Gmbh Verfahren zur Bahnspannungseinstellung
DE102009016206A1 (de) * 2009-04-03 2010-10-14 Robert Bosch Gmbh Verfahren zur Bahnspannungseinstellung
DE102012013435A1 (de) * 2012-04-04 2013-10-10 Robert Bosch Gmbh Verfahren zur Vorregistrierung einerBearbeitungsstation
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CN108481908A (zh) * 2018-05-29 2018-09-04 胡永标 一种方便检测维修的印刷机系统及其方法

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NL1025711C2 (nl) * 2004-03-12 2005-09-13 Q I Press Controls Holding B V Werkwijze en systeem voor het controleren van door een drukpers vervaardigd drukwerk.
DE102004034431A1 (de) * 2004-07-15 2006-02-09 Windmöller & Hölscher Kg Registervorsteuerung bei Geschwindigkeitsänderung
DE102005019566A1 (de) 2005-04-27 2006-11-09 Bosch Rexroth Aktiengesellschaft Druckmaschine und Verfahren zur Registerkorrektur
DE102005033585A1 (de) * 2005-07-19 2007-02-01 Bosch Rexroth Aktiengesellschaft Registerregelung

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DE102007017095A1 (de) 2008-10-16
US20090293746A1 (en) 2009-12-03
CN101284442A (zh) 2008-10-15
EP2002980A2 (fr) 2008-12-17
ES2474692T3 (es) 2014-07-09
EP2002980A3 (fr) 2011-08-03

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