EP2396174B1 - Procédé de réglage d'une couverture et procédé correspondant de mise en oeuvre dans une presse d'imprimerie comprenant plusieurs groupes d'impression - Google Patents

Procédé de réglage d'une couverture et procédé correspondant de mise en oeuvre dans une presse d'imprimerie comprenant plusieurs groupes d'impression Download PDF

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Publication number
EP2396174B1
EP2396174B1 EP10701852.5A EP10701852A EP2396174B1 EP 2396174 B1 EP2396174 B1 EP 2396174B1 EP 10701852 A EP10701852 A EP 10701852A EP 2396174 B1 EP2396174 B1 EP 2396174B1
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EP
European Patent Office
Prior art keywords
printing
ink
unit
printing process
inking unit
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EP10701852.5A
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German (de)
English (en)
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EP2396174A1 (fr
Inventor
Steven Flemming
Harald Heinrich Willeke
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Koenig and Bauer AG
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Koenig and Bauer AG
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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
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/045—Remote control of the duct keys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/04—Tripping devices or stop-motions
    • B41F33/10—Tripping devices or stop-motions for starting or stopping operation of damping or inking units

Definitions

  • the invention relates to a method for setting a surface coverage and a corresponding method for performing in a multiple printing units having printing press.
  • DE 43 12 229 A1 is a method for the defined generation of a near-continuous color distribution in the inking unit of rotary printing machines during job changes known, in which after the end of the job the Hebwalze the inking unit after which the printing and the paper run are turned on and a small number of prints are performed, after which the paper run and print are turned off, washing the blanket and changing the printing plate of the previous job to the printing plate of the new job , in which then the lifting roller is turned on and the ink inlet of the inking unit starts with the print off, and then the printing and the paper run for the new job are employed.
  • JP 11 105255 A a method for correcting a color layer thickness is known, in which after reaching the edition of a current production in an operating state of finished ink supply, a reduction of the ink layer thickness on inking rollers is automatically initiated and executed.
  • a rotary printing machine When converting a printing machine, z. B. a rotary printing machine, preferably a sheet-fed press, in particular a sheet-fed printing press in a printing process, from a first currently running printing process to a subsequent second printing process, it is necessary to set a during the execution of the first printing process along a transport path distribution to one in the Cancel the printing press to be printed substrate to be transferred ink in order to produce a high-quality printed product in the second printing process, which is free of undesirable feedback from the printed product produced in the first printing process.
  • the distribution of this printing ink during the execution of the first printing process along the transport path of the printing ink is generally uneven, transversely to a transport direction of the printing material transported through the printing machine and thereby to be printed, ie it forms along a cutting line running transversely to the transport direction of the printing material of Transport path of the ink several mostly distinct clusters for the ultimately transferred to the substrate from ink, which is because the substrate to be printed during its transport through the printing press transversely to its transport direction due to an uneven design usually one on the substrate generating print image of printing ink unevenly absorbs.
  • the transport path of the ink leads, starting from a belonging to an inking unit of the printing press Farbdosiersystem supplied by the respective Farbdosiersystem with ink inking unit via a z. B. on one of the printing unit belonging to a printing unit of the printing cylinder arranged printing form up to the printing material to be printed with the ink in question.
  • the resulting during the execution of the first printing process along this transport path transversely to the transport direction of the printing material uneven distribution of ink provided by the ink metering system consists z.
  • Example in a printing in an offset printing process rotary printing machine especially on surfaces arranged in the inking rollers and on the at least one arranged on a form of a cylinder printing cylinder arranged printing plate and on the lateral surface of another cooperating with the forme cylinder designed as a transfer cylinder printing cylinder.
  • a plurality of juxtaposed arranged, each having its own inking printing units are provided along the transport path of the printing material in the transport direction, wherein at least two of these printing units different inks are transferred to the same transported through the printing press substrate. Also, on both sides of the transport path of the printing material in each case several printing units can be provided each with its own inking unit.
  • a printing product in multicolor printing generating printing machine can along the transport path of the substrate this z. B. with the inks cyan, magenta, yellow and black.
  • the inking unit of the respective printing unit is z. B. formed as a roller inking, z. B. as a siphon inking or as a film inking unit, these types of inking unit are known in the art.
  • the Farbdosiersystem As an ink fountain, which supplies the inking unit in question with ink, has z. B. one about its longitudinal axis rotatable ink ductor and at least one metering on; Preferably, several zone-adjustable, in particular each controllable by means of an actuating element metering members are provided transversely to the transport direction of the printing material, said metering z. B. than in a distance range of a few tenths of a millimeter to the ink duct distance variable arranged color meter are formed. At least one belonging to the inking inking roller transmits the provided by the inking unit, z. B. in the transverse to the transport direction of the printing substrate arranged zones of Farbdosiersystems especially differently metered ink on the at least one printing forme, the z. B. is arranged on the inking unit associated with this form cylinder.
  • Another approach is to turn off with a reaching a final phase of the previously executed by the printing press first printing process from the ink dosing system concerned ink supply to the inking unit or at least interrupt in the inking unit, which after stopping or interrupting the ink supply in the inking unit on the printing material side remaining amount of the ink in the final phase of the previously executed by the printing press printing process continues z. B. is still transferred to the substrate for a certain time, and in particular until the ink remaining from the first printing process in the inking unit is at least almost used up.
  • Such a method is z. B. from the DE 10 2008 029 998 A1 known. With this blank printing of the inking unit waste is produced to a not inconsiderable extent. Also, this procedure is time consuming.
  • the existing of the first printing process transverse to the transport direction of the printing material distribution of the ink is maintained in principle, which can adversely affect a pressure of the subsequent second printing process.
  • the pressure of the subsequent second printing process is done deliberately with the resulting from the first printing process, transverse to the transport direction of the printing material distribution of the ink, during the An horrs of the subsequent second printing process resulting from the first printing process dosage of z. B. in the respective transversely to the transport direction of the printing material arranged zones of the Farbdosiersystems provided ink is adapted to the required for the execution of the subsequent second printing process dosage.
  • This procedure then leads to difficulties if, in one or more zones, an area coverage of the new second printing process to be generated therein is locally or completely very small in comparison with the previous first printing process. In this case, the removal of the excess ink in the relevant zone must be carried out completely via the printing process, ie the second printing process. This can take a long time and lead to a significant amount of waste.
  • the invention is based on the object to provide a method for setting an area coverage and a corresponding method for performing in a multiple printing units having printing machine, in which optimizes the conversion of the printing press from a first in this printing press currently running printing process to a subsequent second printing process becomes.
  • the advantages that can be achieved with the invention are, in particular, that the conversion of the printing press from a first in the printing press currently running printing process to a subsequent second printing process quickly and economically, because this conversion in an automatically running control process, taking into account a predetermined setpoint for the adjusted Surface coverage is performed optimized, the control process minimizes the time required for the conversion of the printing machine and the waste resulting from this conversion waste. In addition, the optimization performed by the control process leads to that hardly any ink is wasted. In addition to a saving in material costs, in particular for the substrate and the ink and machine and operating costs can be reduced because the press with the subsequent second printing process already after a very short time in the good production.
  • the Fig. 1 shows an example of a section of a printing machine 01 shown only schematically, here a sheet-fed printing machine 01 printing in an offset printing process, with several, z. B. four in the transport direction T of a printing substrate 02, z.
  • a paper sheet 02 juxtaposed arranged printing units 03, each of these printing units 03 each having an inking unit 04.
  • the respective inking unit 04 has, inter alia, a z. B. a paint box 06 and a Farbduktor 07 having Farbdosiersystem on and in a printing ink transporting compactor z. B. at least one ink transfer roller 08, possibly a color lifter 14 and more, z. B.
  • inking rollers 09 which are each employed on a forme cylinder 11 of the printing unit 03 or at least be adjusted, wherein this form cylinder 11 rolls at least during a printing process on a transfer cylinder 12, wherein the transfer cylinder 12 is in turn employed against a counter-pressure cylinder 13, wherein the substrate 02 passes through a gap formed between the transfer cylinder 12 and the impression cylinder 13.
  • the other printing units 03 are constructed accordingly. In each of the printing units 03 another ink can be transferred to the same substrate 02.
  • the respective Farbdosiersystem ie its metering and / or Farbduktor 07, z. B. connected via a communication network 22 at least in terms of data technology with a control device 16, wherein at least one of this control device 16 outgoing control command by means of the metering and / or Farbduktors 07 an ink supply to the respective inking unit 04 with respect to the supplied amount of ink is adjustable.
  • At least one detection device 17 is provided in the printing machine 01, which captures at least one color density within the printing machine 01 during its production of at least one printed image generated on the printing substrate 02 and their respective at least one measured value z. B. also via the communication network 22 of the control device 16 zu instruct.
  • the detection device 17 is z. B.
  • the detection device 17 z. B. at least one camera, in particular an electronic, preferably video-optical camera, with which the detection device 17 receives a sequence of images from the print image generated on the substrate 02 by a photographic image. From the recorded image of the control device 16, the respective color density of all participating in the construction of the relevant printed image inks z. B. be determined by separation. Alternatively, it can be provided that a plurality of printing units 03 each have at least one z. B. for a specific ink optimized detection device 17 is assigned. The detection device 17 is in each case arranged in the transport direction T of the printing material 02 at the exit of the respective printing unit 03. The Detecting device 17 detects the color density z. B. directly in the relevant image or in a formed on the substrate 02 colorimeter.
  • the detected by the detection device 17 measured value forms an actual value for a z. B. on the basis of their color density detectable area coverage of at least one transferred to the substrate 02 ink.
  • the term of area coverage denotes a z. B. percentage specified degree of coverage of the substrate with at least one of the applied in the printing process on this substrate ink, the indication of the area coverage of a total area of the printed image or on a partial surface of the same, z. B. on only a single, the printed image strip-like continuous zone, may be related.
  • the setting of the area coverage is carried out in particular with reference to a plurality of different, preferably arranged in parallel strips of partial areas of the same printed image, in each case the associated area coverage is set for several, in particular for each of these sub-areas.
  • the control device 16 is connected to a memory device 18 in connection, in which provided at least one setpoint for the case of a pressure of the currently running printing process subsequent printing process, also z. B. defined by their color density area coverage is stored, wherein the respective actual value and target value of the area cover each relate to the same total area or partial area of the relevant printed image.
  • the control device 16 compares, in particular during or after reaching a final phase of a previously executed by the printing press 01 printing process, in which final phase an intended edition for a printed product to be produced in the printing process is at least almost reached and turned off by the control device 16, the ink supply to the inking unit 04 or is interrupted in the inking unit 04, the currently detected actual value provided by the detection device 17 with the setpoint value stored in a storage device 18 of the area coverage applicable for the respective printing ink, in particular color density.
  • the ink feed to the inking unit 04 is z. B. shut off by an automatic operation of the Farbdosiersystems, which is closed by this operation at least one dosing of Farbdosiersystems.
  • the actuated metering is z. B. effective in at least one of a plurality of transverse to the transport direction T of the printing substrate 02 juxtaposed color zones.
  • the ink supply can be interrupted in the respective inking unit 04 by stopping a color lifter 14.
  • a computing unit 19 is also connected to the control device 16, wherein the arithmetic unit 19 calculates a number of sheets of the sheet-shaped printing material, at least from the comparison of the actual value of the detected color density carried out by the control device 16 with its desired value for the subsequent printing process the printing substrate 02 is arc-shaped, this number of sheets indicating how many sheets are still to be printed with the remaining inking unit 04 amount of ink until the area coverage corresponds to the intended for the pressure of the subsequent printing process target value of the area coverage.
  • the control device 16, the memory device 18 and the arithmetic unit 19 may be formed in a same assembly, which in the Fig. 1 is indicated by a dashed border, this assembly can be referred to as a color controller 24.
  • This assembly or at least some of its components can be data technology with a belonging to the printing press 01 control station 21, ie, connected to a higher-level control unit, or integrated in the control room 21.
  • a method for setting an area coverage in which the z. B. on the basis of their color density or ink layer detectable coverage by a transferred to a substrate 02 by an inking unit 04 of the printing machine 01 amount of ink, with a reaching a final phase of the printing machine 01 previously executed printing process, an ink feed to the inking unit 04 at least partially, ie parked zone-wise or interrupted in the inking unit 04, wherein the after printing off or interrupting the ink supply in the inking unit 04 printing material remaining amount of ink in the final phase of the printing machine 01 previously executed printing process is still transferred to the substrate 02 until with the area transferred to the printing substrate 02 amount of ink covering a one for a pressure of a subsequent printing process provided target value of the same z.
  • one in the printing machine 01 for the execution of the previous printing process of the inking unit 04 inked printing form is preferably then exchanged for another provided for carrying out the subsequent printing process printing form after the remaining in the inking unit 04 amount of ink on the substrate 02 taking place coverage corresponds to the intended for the pressure of the subsequent printing process target value of the area coverage.
  • This process is carried out in particular on the premise that the same ink is transferred from the inking unit 04 in the subsequent printing process to the printing substrate 02 as in the previous printing process.
  • the method may, for. B. in or with the same color controller 24 for a plurality of printing units 03 having printing machine 01 are executed, each of these printing 03 assigned its own inking unit 04, wherein at least in two of these printing units 03 different inks on the same transported by the printing machine 01 substrate 02 be transmitted to produce a same print image.
  • the arithmetic unit 19 then calculates for each of the printing units 03 each that number of sheets of the sheet-shaped substrate 02 or the number of printed images, each indicating how many sheets or printed images still print with the remaining in the respective inking 04 amount of the respective ink are until the executed in conjunction with the respective inking 04 area coverage that for the pressure of the subsequent
  • the printing process provided setpoint corresponds to be performed in conjunction with the respective inking unit 04 area coverage.
  • the calculated number of sheets or printed images can be attached to a z. B. belonging to the control station 21 display device 23 are displayed.
  • the respective inking 04 z. B. whose each turned off at least one inking roller 09 of the inked in the relevant printing unit 03 printing form as soon as in the relevant printing unit 03 that of the arithmetic unit 19 calculated number of sheets or printed images is printed, which is necessary in connection with the respective Ink fountain 04 executed area coverage corresponds to the intended for the pressure of the subsequent printing process setpoint to be executed in conjunction with the respective inking unit 04 area coverage.
  • the same color controller 24 executes said method for setting an area coverage in a plurality of printing units 03 having printing machine 01, it is z. B. from the control room 21 in view of the pressure of the subsequent printing process and prior to the execution of the same information about the inking unit occupancy of the inking units 04 used in the printing press 01 zuzu dining.
  • the respective setpoints for the respective zonal area coverage z. B. stored in the form of the respective desired color density. These setpoints can be z. B. in conjunction with or depending on the type of substrate to be used 02, z. As the paper class, are stored.
  • the arithmetic unit 19 calculates preferably for each of these multiple printing units 03 from a difference between currently detected actual values and the stored nominal values and z. B. taking into account a rotational speed of the respective Farbduktors 07 and / or at least one time constant for building and / or reducing a paint thickness in the respective inking unit 04 or printing 03 each one of the number of images or sheets of sheet-shaped substrate 02, which indicates how lots Print images or sheets are still to be printed with the remaining in the respective inking unit 04 amount of the respective ink without over-dyeing the substrate 02 in the execution of the pressure of the subsequent printing process.
  • the color zone that takes the longest to reduce a color surplus determines the number of printed images or sheets that should be further printed in the currently running printing process.
  • For color zones in which the area coverage and thus the color decrease of the new subsequent printing process is higher than in the previously executed printing process can during the pressure of the subsequent printing process by a remote from the color controller 24 to the respective inking unit 04 and / or Farbdosiersystem control command to a limited extent Printing ink even be supplied, which has the consequence that for the blank printing of the relevant inking unit 04 or printing unit 03, the ink supply not z. B. is completely blocked by stopping the color lifter 14, but only the rest of this exception not affected color zones are closed.
  • the found, for carrying out in a plurality of printing units 03 having printing machine 01 provided method also formulate such that are applied by these printing units 03 on a same substrate 02 along its transport path through the printing machine 01 to produce a same print image at least two different inks , wherein in a preferably the same color controller 24 is calculated from at least one detected actual value of area coverage exactly how many print images of the respective participating in the generation of these print images 03 after an at least zonweise stopping or interrupting an ink supply in each of these printing units 03 with a in the respective printing unit 03 remaining on the printing material side amount of ink are still each printed until taking place in the respective printing units 03 with the transferred to the substrate 02 amount of ink Area coverage corresponds to a intended for a pressure of a subsequent printing process target value of the area coverage.
  • the arithmetic unit 19 of the color controller 24 calculates, for example, the number of sheets or printed images required for the upcoming job change and preferably also a color zone profile to be set in the respective inking unit 04.
  • This procedure is now using the example of a sheet-fed press for two different inks in conjunction with the Fig. 2 to 14 explained, wherein in a left column information about a currently running printing process (order A) and in a right column corresponding information to a new subsequent printing process (order B) is shown. That's how it shows Fig. 2 the initial situation and in comparison the aspired new situation.
  • the Fig. 3 to 14 contain diagrams showing various intermediate steps and finally the result of the calculation performed by the arithmetic unit 19.
  • a difference of the ink fountain openings FZ Diff FD A and FD B at a certain speed of the ink fountain roller 07 of order A from a characteristic FZ / Farbduktor was determined.
  • FZ Diff is signed.
  • Fig. 5 shows the difference of the stationary ink zone openings.
  • an equivalent density difference D diff was calculated by multiplying the difference of the ink zone aperture FZ Diff by a gain V A at the area coverage of job A.
  • the minimum of BZ x is the number of sheets BZ x that still need to be printed. In the example shown, about 50 sheets have to be printed with the printing ink cyan or in multicolor printing with the color separation cyan until the subsequent printing process (job B) has reached its good production.
  • an initial color zone opening profile is calculated for the subsequent printing process (job B), which is to be set by the color metering system in this example, the ink cyan.
  • job B which is to be set by the color metering system in this example, the ink cyan.
  • the last density values before completion of the controlled blank printing taking into account the area coverage FD B , the speed DS B of the ink fountain roller 07 and the lift timing HT B into stationary ink zone openings are converted.
  • the Fig. 9 to 14 show another second example of another ink, z. B. yellow, but these Fig. 9 to 14 each one Fig. 3 to 8 correspond.
  • the previous explanations for the printing ink cyan apply here accordingly.
  • According to the in the Fig. 9 to 14 Example shown must be printed for the ink yellow or in multi-color printing with the color separation yellow starting from the job A about 71 sheets before the order B goes into its production.
  • the good production of the subsequent printing process (job B) is thus achieved according to a precisely calculated number of sheets or printed images by means of a program.
  • the conversion of the first carried out in this printing press printing process (order A) on the subsequent second printing process (order B) is achieved in an optimal manner.
  • the conversion of the printing press from a first in this printing press currently running printing process to a subsequent second printing process is thus optimized for a precisely calculated number of sheets or printed images.

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

Claims (15)

  1. Procédé de réglage d'une couverture surfacique, où la couverture surfacique est obtenue par une quantité d'encre d'impression transférée sur un support d'impression (02) par un groupe d'encrage (04) d'une machine à imprimer (01), où, lorsqu'est atteinte une phase finale d'une tâche d'impression exécutée jusqu'ici par la machine à imprimer (01), une amenée d'encre au groupe d'encrage (04) est arrêtée au moins dans certaines zones ou interrompue dans le groupe d'encrage (04), la quantité d'encre d'impression restant dans le groupe d'encrage (04) côté support d'impression après l'arrêt ou l'interruption de l'amenée d'encre continuant à être transférée sur le support d'impression (02) dans la phase finale de la tâche d'impression exécutée jusqu'ici par la machine à imprimer (01), jusqu'à ce que la couverture surfacique obtenue avec la quantité d'encre d'impression transférée sur le support d'impression (02) égale une valeur de consigne de la couverture surfacique, un passage de la machine à imprimer de la tâche d'impression actuellement effectuée dans ladite machine à imprimer à une tâche d'impression consécutive étant réalisé par un processus de régulation à exécution automatique, caractérisé en ce que lors de la tâche d'impression consécutive la même encre d'impression est transférée du groupe d'encrage (04) vers le support d'impression (02) que lors de la tâche d'impression effectuée jusqu'ici, la valeur de consigne de la couverture surfacique correspondant à la couverture surfacique prévue pour une épreuve de la tâche d'impression consécutive, le processus de régulation étant exécuté en tenant compte de la valeur de consigne prescrite pour la couverture surfacique à régler.
  2. Procédé selon la revendication 1, caractérisé en ce qu'un cliché d'impression encré par le groupe d'encrage (04) dans la machine à imprimer (01) pour l'exécution de la tâche d'impression effectuée jusqu'ici n'est remplacé par un autre cliché d'impression prévu pour l'exécution de la tâche d'impression consécutive, qu'après que la couverture surfacique effectuée sur le support d'impression (02) avec la quantité d'encre d'impression restant dans le groupe d'encrage (04) a égalé la valeur de consigne de la couverture surfacique prévue pour l'épreuve de la tâche d'impression consécutive.
  3. Procédé selon la revendication 1, caractérisé en ce que la couverture surfacique saisie comme valeur effective lors de l'épreuve de la tâche d'impression consécutive est comparée dans un dispositif de régulation (16) avec une valeur de consigne sauvegardée dans un dispositif de mémorisation (18) pour la couverture surfacique prévue pour ladite épreuve.
  4. Procédé selon la revendication 3, caractérisé en ce qu'au moins à partir de la comparaison effectuée par le dispositif de régulation (16) de la valeur effective de la couverture surfacique saisie avec sa valeur de consigne prévue pour l'épreuve de la tâche d'impression consécutive, une unité de calcul (19) calcule un nombre de feuilles du support d'impression (02) réalisé sous forme de feuilles, ledit nombre de feuilles indiquant combien de feuilles doivent encore être imprimées avec la quantité d'encre d'impression restant dans le groupe d'encrage (04), jusqu'à ce que la couverture surfacique égale la valeur de consigne de la couverture surfacique prévue pour l'épreuve de la tâche d'impression consécutive.
  5. Procédé selon la revendication 1, caractérisé en ce que celui-ci est exécuté pour une machine à imprimer (01) comportant plusieurs groupes d'impression (03), un groupe d'encrage (04) propre étant affecté à chaque groupe d'impression (03), différentes encres d'impression étant transférées au moins dans deux desdits groupes d'impression (03) sur le même support d'impression (02) traversant la machine à imprimer (01).
  6. Procédé selon la revendication 5, caractérisé en ce qu'une unité de calcul (19) calcule pour plusieurs des groupes d'impression (03) le nombre de feuilles du support d'impression (02) réalisé sous forme de feuilles qui indique combien de feuilles doivent encore être imprimées avec la quantité d'encre d'impression restant dans le groupe d'encrage (04) correspondant, jusqu'à ce que la couverture surfacique effectuée en liaison avec le groupe d'encrage (04) correspondant égale la valeur de consigne de la couverture surfacique prévue pour l'épreuve de la tâche d'impression consécutive, à effectuer en liaison avec le groupe d'encrage (04) correspondant.
  7. Procédé selon la revendication 5, caractérisé en ce que dans chaque groupe d'encrage (04), le ou les rouleaux encreurs (09) dudit groupe d'encrage pour le cliché d'impression encré dans le groupe d'impression (03) concerné sont arrêtés dès que le nombre de feuilles calculé par une unité de calcul (19) est imprimé dans le groupe d'impression (03) concerné, ledit nombre étant exigé jusqu'à ce que la couverture surfacique effectuée en liaison avec le groupe d'encrage (04) correspondant égale la valeur de consigne de la couverture surfacique prévue pour l'épreuve de la tâche d'impression consécutive, à effectuer en liaison avec le groupe d'encrage (04) correspondant.
  8. Procédé d'exécution dans une machine à imprimer (01) comportant plusieurs groupes d'impression (03), au moins deux encres d'impression différentes étant appliquées par lesdits groupes d'impression (03) sur un même support d'impression (02) le long de son chemin de transport traversant la machine à imprimer (01) pour produire une même image imprimée, où il est calculé dans un régulateur d'encre (24) combien d'images doivent encore être imprimées par les groupes d'impression (03) participant respectivement à la production desdites images imprimées au moins dans certaines zones après un arrêt ou une interruption d'une amenée d'encre dans chacun desdits groupes d'impression (03), avec une quantité d'encre d'impression restant dans le groupe d'impression (03) correspondant côté support d'impression, jusqu'à ce que dans les groupes d'impression (03) correspondants, une couverture surfacique obtenue avec la quantité d'encre d'impression transférée sur le support d'impression (02) égale une valeur de consigne de la couverture surfacique, la couverture surfacique étant effectuée par une quantité d'encre d'impression transférée sur le support d'impression (02) par un groupe d'encrage (04) affecté au groupe d'impression (03) correspondant, au moins un cliché d'impression encré par le groupe d'encrage (04) dans le groupe d'impression (03) correspondant pour l'exécution d'une tâche d'impression effectuée jusqu'ici n'étant remplacé par un autre cliché d'impression prévu pour l'exécution de la tâche d'impression consécutive, qu'après que la couverture surfacique effectuée sur le support d'impression (02) avec la quantité d'encre d'impression restant dans le groupe d'encrage (04) a égalé la valeur de consigne de la couverture surfacique, un passage de la machine à imprimer de la tâche d'impression actuellement effectuée dans ladite machine à imprimer à une tâche d'impression consécutive étant réalisé par un processus de régulation à exécution automatique, caractérisé en ce que lors de la tâche d'impression consécutive la même encre d'impression que lors de la tâche d'impression effectuée jusqu'ici est transférée des groupes d'encrage (04) participant à la tâche d'impression exécutée jusqu'ici vers le support d'impression (02), la valeur de consigne de la couverture surfacique correspondant à la couverture surfacique prévue pour une épreuve de la tâche d'impression consécutive, le processus de régulation étant exécuté par le régulateur d'encre (24) en tenant compte de la valeur de consigne prescrite pour la couverture surfacique à régler.
  9. Procédé selon la revendication 1 ou 8, caractérisé en ce que le réglage de la couverture surfacique est effectué pour une surface globale de l'image imprimée ou en référence à une surface partielle de celle-ci, ou en ce que le réglage de la couverture surfacique est effectué en référence à plusieurs surfaces partielles différentes de la même image imprimée, la couverture surfacique correspondante étant réglée pour plusieurs desdites surfaces partielles.
  10. Procédé selon la revendication 1 ou 8, caractérisé en ce que la couverture surfacique est réglée par un système de dosage d'encre avec plusieurs organes de dosage actifs par zones, plusieurs zones d'encrage étant disposées côte à côte transversalement à la direction de transport (T) du support d'impression (02) traversant la machine à imprimer.
  11. Procédé selon la revendication 1 ou 8, caractérisé en ce que l'amenée d'encre au groupe d'encrage (04) ou au groupe d'encrage (04) correspondant est arrêtée par actionnement du système de dosage d'encre au moins dans certaines zones, au moins un organe de dosage du système de dosage d'encre étant fermé par cet actionnement.
  12. Procédé selon la revendication 1 ou 8, caractérisé en ce que l'amenée d'encre est interrompue dans le groupe d'encrage (04) ou dans le groupe d'encrage (04) correspondant par arrêt d'un rouleau preneur (14).
  13. Procédé selon la revendication 1 ou 8, caractérisé en ce qu'au moins lors de l'épreuve de la tâche d'impression consécutive, une densité d'encre de la couverture surfacique obtenue sur le support d'impression (02) est saisie.
  14. Procédé selon la revendication 13, caractérisé en ce que la densité d'encre est saisie à l'intérieur de la machine à imprimer (01) par au moins un dispositif de saisie (17).
  15. Procédé selon la revendication 4 ou 8, caractérisé en ce que le nombre de feuilles ou d'images imprimées est calculé en tenant compte d'une vitesse de rotation d'un cylindre encreur (07) affecté au groupe d'encrage (04) correspondant et/ou au moins d'une constante temporelle pour l'accroissement et/ou la résorption d'une épaisseur de couche d'encre dans le groupe d'encrage (04) ou groupe d'impression (03) correspondant.
EP10701852.5A 2009-02-16 2010-01-26 Procédé de réglage d'une couverture et procédé correspondant de mise en oeuvre dans une presse d'imprimerie comprenant plusieurs groupes d'impression Active EP2396174B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009000877.2A DE102009000877C5 (de) 2009-02-16 2009-02-16 Verfahren zur Einstellung einer Flächendeckung und ein entsprechendes Verfahren zur Durchführung in einer mehrere Druckwerke aufweisenden Druckmaschine
PCT/EP2010/050845 WO2010091947A1 (fr) 2009-02-16 2010-01-26 Procédé de réglage d'une couverture et procédé correspondant de mise en œuvre dans une presse d'imprimerie comprenant plusieurs groupes d'impression

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EP2396174A1 EP2396174A1 (fr) 2011-12-21
EP2396174B1 true EP2396174B1 (fr) 2014-12-17

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US (1) US8230787B2 (fr)
EP (1) EP2396174B1 (fr)
CN (1) CN102317077B (fr)
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WO (1) WO2010091947A1 (fr)

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DE102011107205A1 (de) * 2011-07-13 2013-01-17 Manroland Web Systems Gmbh Verfahren zum Betreiben eines Farbwerks
IL226121A (en) * 2012-05-02 2017-02-28 Advanced Vision Tech Avt Ltd A method and system for determining the pressure of a cylinder in a printing machine without the need for special purposes
DE102014007852A1 (de) * 2014-05-22 2015-11-26 Heidelberger Druckmaschinen Ag Verfahren zum Betreiben einer Druckmaschine
DE102017202937B4 (de) * 2017-02-23 2019-08-08 Koenig & Bauer Ag Verfahren zur Steuerung einer mit einer Druckmaschine datentechnisch verbundenen Anzeigeeinrichtung
DE102019102762A1 (de) 2019-02-05 2020-08-06 Koenig & Bauer Ag Verfahren zur Einstellung eines Farbprofils in einer Bogenoffsetdruckmaschine
JP7221762B2 (ja) * 2019-03-29 2023-02-14 三菱重工機械システム株式会社 オフセット輪転印刷機のメンテナンス支援装置および方法

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DE3707695A1 (de) * 1987-03-11 1988-09-22 Heidelberger Druckmasch Ag Verfahren zur definierten erzeugung einer dem fortdruck nahen farbverteilung im farbwerk von rotationsdruckmaschinen
DE4312229C2 (de) * 1993-04-14 1999-10-28 Heidelberger Druckmasch Ag Verfahren zur definierten Erzeugung einer dem Fortdruck nahen Farbverteilung im Farbwerk von Rotationsdruckmaschinen
JPH11105255A (ja) * 1997-10-03 1999-04-20 Komori Corp インキ膜厚補正方法およびインキ膜厚補正装置
JP2000071424A (ja) * 1998-09-02 2000-03-07 Komori Corp 多色印刷機におけるインキ膜厚制御方法
DE10245702A1 (de) * 2001-10-25 2003-05-08 Heidelberger Druckmasch Ag Anpassung der Farbsteuerung an die physikalischen Eigenschaften von Farbe und Bedruckstoff
DE10312998B4 (de) * 2002-04-03 2015-07-09 Heidelberger Druckmaschinen Ag Lernende Farbführung
JP4024593B2 (ja) * 2002-05-22 2007-12-19 大日本スクリーン製造株式会社 インキ供給制御装置および印刷装置
US7121208B2 (en) * 2004-09-13 2006-10-17 Heidelberger Druckmaschinen Ag Method of setting optimized pre-inking prior to the start of printing the current print job
DE102008029998A1 (de) 2007-07-11 2009-01-15 Manroland Ag Abfördern von Druckfarbe

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WO2010091947A1 (fr) 2010-08-19
DE102009000877C5 (de) 2016-01-07
CN102317077A (zh) 2012-01-11
CN102317077B (zh) 2013-08-07
EP2396174A1 (fr) 2011-12-21
DE102009000877B4 (de) 2014-03-06
US8230787B2 (en) 2012-07-31
DE102009000877A1 (de) 2010-08-19
US20110297027A1 (en) 2011-12-08

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