EP2055482B1 - Verfahren zur bestimmung von gedruckten bildern - Google Patents

Verfahren zur bestimmung von gedruckten bildern Download PDF

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Publication number
EP2055482B1
EP2055482B1 EP07788596.0A EP07788596A EP2055482B1 EP 2055482 B1 EP2055482 B1 EP 2055482B1 EP 07788596 A EP07788596 A EP 07788596A EP 2055482 B1 EP2055482 B1 EP 2055482B1
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EP
European Patent Office
Prior art keywords
printing
printed
characteristic images
rollers
roller
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Application number
EP07788596.0A
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English (en)
French (fr)
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EP2055482A2 (de
EP2055482A4 (de
Inventor
Jordi Puig Vila
Felip Ferrer Cadillach
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Comexi Group Industries SA
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Comexi Group Industries SA
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Publication of EP2055482A4 publication Critical patent/EP2055482A4/de
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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
    • B41F33/0081—Devices for scanning register marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/14—Registering devices with means for displacing the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/50—Marks on printed material
    • B41P2233/52—Marks on printed material for registering

Definitions

  • the present invention generally relates to a method of determining printed images, particularly applicable to a printer with printing groups each carrying a printing roller with a respective characteristic image to be printed on a material, but the determination or discernment of which is not initially possible, either because its belonging to a certain roller is in principle unknown or because some of the characteristic images would appear partly or completely superposed in the event of performing a first printing.
  • printers such as flexographic printers comprising a series of printing groups, with printing rollers, with characteristic images or marks to be printed incorporated in the rollers either directly, for example by intaglio printing, or by means of corresponding printing plates or engraved jacket in the case of flexography.
  • Said printing machines can incorporate automatic systems for adjusting the register of the printing or of the transfer of the ink through inspection of the characteristic images or marks printed on a material.
  • the method proposed by the present invention is applicable for the mentioned case that the order of the marks is not always fixed with respect to the order of the printing groups.
  • EP-A-0 850 763 discloses a method according to the preamble of claims 1 and 9.
  • Such objective is achieved with the present invention by means of providing a method the application of which allows clearly determining the different printed marks to perform subsequent operations, as well as determining which mark corresponds to each printing group, without needing to visually inspect the roller, jacket, printing plate or printed material, thus reducing the wait time prior to starting the register and pressure adjustment operations necessary to begin printing compared to conventional visual inspection methods described in the previous section.
  • the present invention relates to a method of determining printed images, of the type comprising the use of a printer with at least one first and one second printing groups including respective first and second printing rollers, generally with one and the same printing development, each of said printing rollers with at least one respective characteristic image to be printed on a material.
  • Said characteristic images are mounting marks used for positioning and mounting, or pre-mounting, printing plates on printing rollers, which are common in printing plates found on the market, whereby register marks are not necessary expressly to perform said pressure and register adjustments, since by means of the method proposed by the first aspect of the invention said mounting marks are used to perform their original function, i.e., the correct mounting of the printing plates on the printing rollers, in addition to performing the functions conventionally performed with other additional marks, i.e., the marks referring to the mentioned pressure adjustments and transverse and longitudinal register adjustment.
  • the proposed method is applied to the determination of printed images with respect to printing groups, and is of the type comprising:
  • the method proposed by the second aspect of the invention comprises determining which roller is associated to each of said characteristic images by means of the automatic and sequential performance, after said step i), of the following steps:
  • first and second embodiments can be produced as follows: First and second embodiments combined - moving the transverse and/or longitudinal register of one of the rollers and withdrawing from printing status another one of the rollers, and therefore determining that the mark which has undergone a positional discrepancy with respect to said area of the material, for the first aspect, or which has also been moved upon printing again, is the one which corresponds to the roller which has been moved (step vii.1)), and that the one which has not been printed in step iv) corresponds to the roller which has been withdrawn from printing status (stepvii.3)).
  • said detected positions in said steps ii) and v) are preferably respective longitudinal and transverse positions of each characteristic image within said printing development.
  • steps viii) and ix) permits the determination of possible positional discrepancies of at least one of said characteristic images and performing at least one operation of register adjustment.
  • an additional operation of pressure adjustment of said printing rollers can be also performed.
  • the present invention relates to a method of determining printed images, of the type comprising the use of a printer of any type but with at least two printing groups with respective printing rollers with respective characteristic images to be printed.
  • said characteristic images are auxiliary marks for register M 1 , M 2 , M 3 ...M n located in respective sides of printing plates C 1 , C 2 , C 3 ...C n , for being printed in a side margin of a laminar material 2 to be printed.
  • the method is applied to a flexographic printer of the type comprising a rotating support drum 1 (shown transparently for the sake of visual clarity) on which a laminar material to be printed 2 (shown only in part for the sake of clarity) is supported, with a plurality of printing groups (not all shown) arranged around said support drum 1 and spaced along its perimeter, including respective printing rollers R 1 , R 2 , R 3 ... R n , each of them with at least one respective mark to be printed M 1 , M 2 , M 3 ...M n .
  • the method comprises performing all the steps for all the printing groups and all the marks M 1 , M 2 , M 3 ...M n .
  • Figures 1b and 2b show the marks printed by the first printing of step i) of the method proposed by the second aspect of the invention (said figures do not show the laminar material 2 on the they have been printed).
  • the mentioned distinguishing characteristic of the marks is the relative position within the printing, there being for said embodiment a series of windows (one per mark) delimiting respective areas where it is possible to detect a mark, each mark being moved, according to the proposed method, only through the inside of its respective window, without the possibility of entering in the window of another mark.
  • the marks for example the marks shown in Figures 1b and 1c M 1 , M 2 , M 3 , M 4 , M 5 , are of the same color, the fact that each of them can be moved only through the inside of its respective window (not shown) allows distinguishing them by their relative position, despite the fact that all of them are identical and the same color.
  • marks M 1 , M 2 , M 3 , M 4 , M 5 , M 6 , M 7 shown in Figures 2a to 2c are respective segments of lines, each of them with a different inclination, and which unlike the marks of Figures 1a to 1c , have been printed substantially on one and the same marginal area of the laminar material 2, without being longitudinally separated along the laminar material 2 by more than the small (longitudinal and transverse) separations typical of register errors (which can be seen in Figure 2b ), or the separations forced in step iii) of the proposed method which can be seen in Figure 2c (as also occurs with the embodiment of Figure 1c ).
  • the marks M 1 , M 2 , M 3 ...M n are different geometric figures.
  • the method proposed by the second aspect of the invention comprises performing previously described step ii) for detecting the marks as they are depicted in Figures 1b and 2b .
  • an automatic detection system which, for the embodiment shown in Figures 2b and 2c , comprises, for the purpose of performing the detections visually, an automatic image capture and treatment system (not shown) formed, for example, by at least one camera located above the rotating support drum 1, upstream with respect to the direction of movement of the laminar material 2, associated to a corresponding electronic circuitry, directly on the printed laminar material 2 or in a corresponding monitor or display (not shown), said automatic image capture and treatment system being associated to a corresponding electronic system suitable for performing at least said steps vi) to ix), as well as collaborating, if necessary, when performing steps ii) and v), as well as giving the orders by means of the corresponding sending of suitable control signals to means of actuating the groups and the printing rollers, which allow performing steps i), iii) and iv).
  • the mentioned automatic detection system comprises one or more photoelectric sensors, also associated to an electronic system like that described in the preceding paragraph.
  • said step comprises moving the transverse and/or longitudinal register of at least all except one of said printing rollers R 1 , R 2 , R 3 ... R n , each in a different direction or in the same direction as another but with a different magnitude different, or withdrawing same from printing status.
  • step iii) is performed for moving the printing rollers R 1 , R 2 , R 3 , R 4 , R 5 shown therein according to the indicative arrows also shown therein, i.e.:
  • Said Figure 1c shows the previous positions of the marks (i.e., those shown in Figure 1a ) by means of a number of corresponding "x", which allows performing a comparison with their respective current positions, which allows appreciating how all the marks, except that indicated as M 3 , have undergone respective positional discrepancies, determined in step vi) of the method, and different from one another, specifically mark M 5 has been moved to the right mark M 4 to the left, mark M 2 upwards and mark M 1 downwards.
  • said step vi) has been performed to determine a series of positional discrepancies different for all except one of the marks, i.e., for M 1 , M 2 , M 4 and M 5 .
  • the method proposed by the second aspect of the invention comprises performing said step vii.1) to determine that each of the printing rollers R 1 , R 2 , R 4 and R 5 actuated in step iii) is associated to one of said marks M 1 , M 2 , M 4 and M 5 which have undergone respective positional discrepancies, if the transverse and/or longitudinal register of said printing roller R 1 , R 2 , R 4 and R 5 has been moved in said step iii), with a direction corresponding to that experienced by the printed mark M 2 , M 3 , M 4 and M 5 , i.e., mark M 2 corresponds to roller R 2 , M 3 to R 3 , M 4 to R 4 and M 5 to R 5 .
  • the method comprises determining in step vii.2) that the third roller R 3 , the register of which has not been moved, is associated to mark M 3 which has not undergone any positional discrepancy.
  • step iii) The movements to which the registers of the printing rollers have been subjected in step iii) are enough for the embodiment shown in Figures 1a to 1c , but this is not the case for one embodiment which involves using a machine with a larger number of printing rollers, as is the case shown in Figure 2a .
  • step iii) is performed for moving the printing rollers R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , shown therein according to the indicative arrows also shown therein, i.e.:
  • the fourth printing roller R 4 is not actuated in said step iii), therefore it is not moved in any direction.
  • Said Figure 2c also shows how all the marks, except those indicated as M 4 and as M 1 , have undergone respective positional discrepancies, determined in step vi) of the method, and different from one another, specifically mark M 5 has been moved to the right, mark M 6 to the left, mark M 3 upwards, mark M 2 downwards and mark M 7 also to the right but with a smaller magnitude than M 5 .
  • said step vi) has been performed to determine a series of positional discrepancies different for all except two of the marks, i.e., for M 2 , M 3 , M 5 , M 6 and M 7 .
  • Figure 2c also shows that mark M 1 has not been printed, which has been determined in step vi) as a disappearance of said mark M 1 .
  • the method proposed by the second aspect of the invention comprises performing said step vii.1) to determine that each of the printing rollers R 2 , R 3 , R 5 , R 6 and R 7 actuated in step iii) is associated to one of said marks M 2 , M 3 , M 5 , M 6 and M 7 which have undergone respective positional discrepancies, if the transverse and/or longitudinal register of said printing roller R 2 , R 3 R 5 , R 6 and R 7 has been moved in said step iii), with a direction and a magnitude corresponding to that experienced by the printed mark M 2 , M 3 , M 5 , M 6 and M 7 , i.e., mark M 2 corresponds to roller R 2 , M 3 to R 3 , M 5 to R 5 , M 6 to R 6 , and M 7 to R 7 .
  • said magnitudes have pre-determined values.
  • the method proposed by the second aspect of the invention comprises determining in step vii.2) that the fourth roller R 4 , which has not been moved, is associated to the mark M 4 which has not undergone any positional discrepancy, as well as performing said step vii.3) to determine that the first printing roller R 1 withdrawn from the printing upon being actuated in said step iii) is associated to the first mark M 1 , which has disappeared from the printing.
  • the proposed method is performed before a process of register adjustment of said printing rollers R 1 , R 2 , R 3 ... R n .
  • the method proposed by the second aspect of the invention is performed before a process of pressure adjustment of at least part of the rollers of said printing groups.
  • Figure 3b shows a hypothetical preliminary printing, for the purpose of clarifying the explanation of the method proposed by the first aspect of the invention, since it is not essential to perform printing of the marks M 1 , M 2 , M 3 , M 4 , M 5 before step a).
  • Said circles are an exaggerated representation of the real marks, for the sake of clarity, since they are actually microdots generally having a diameter of substantially 0.1 mm to 1 mm or slightly greater.
  • said marks M 1 , M 2 , M 3 , M 4 , M 5 are auxiliary mounting marks used for positioning and coupling said printing plates C 1 , C 2 , C 3 , C 4 ,C 5 on said printing rollers R 1 , R 2 , R 3 , R 4 , R 5.
  • Figure 3b shows the marks M 1 , M 2 , M 3 , M 4 , M 5 as they would appear printed if a printing before step a) of the method proposed by the first aspect of the invention, for the embodiment in which they are the mentioned microdots, were performed. It can be seen in said Figure 3b that the microdots M 1 , M 2 , M 3 , M 4 , M 5 appear partially superposed, a register adjustment of the printing rollers R 1 , R 2 , R 3 , R 4 , R 5 not having been yet performed.
  • Said superposition although partial, initially prevents the determination or discernment of each mark, it not being possible to clearly distinguish each mark separately, which makes it difficult, and even in some cases impossible, to determine which roller each mark belongs to, as well as their pressure adjustment, since the marks are not seen in their entirety, and their register adjustment, since it is not possible to identify which roller each mark belongs to.
  • Figure 3c shows the same marks or microdots M 1 , M 2 , M 3 , M 4 , M 5 once they have been printed, the printing rollers R 2 , R 3 , R 4 , R 5 shown in Figure 3a having been moved, for the embodiment shown, according to the indicative arrows also shown therein, i.e.:
  • Said Figure 3c depicts the preliminary positions that the marks would have adopted if they had been printed (i.e., those shown in Figure 3a) by means of corresponding "x", which allows performing a comparison with their respective current positions, which allows appreciating how all the marks, except that indicated as M 1 , have undergone respective positional discrepancies.
  • marks M 1 , M 2 , M 3 , M 4 and M 5 have been separated as seen in Figure 3c, they can be easily distinguished, which makes it possible to perform the operations of determining or associating marks M 1 , M 2 , M 3 , M 4 and M 5 with respect to printing rollers R 1 , R 2 , R 3 , R 4 , R 5 as well as register adjustment and pressure adjustment of the printing rollers R 1 , R 2 , R 3 , R 4 , R 5 .
  • the method proposed comprises performing said pressure adjustment by means of using an automatic image capture (camera or the like) and treatment system associated to an electronic system for, according to one embodiment, detecting the absence or presence of each of said marks M 1 , M 2 , M 3 , M 4 , M 5 on said laminar material 2 and acting accordingly by increasing or decreasing the pressure exerted by each printing roller R 1 , R 2 , R 3 , R 4 , R 5 on the laminar material 2, as well as the pressure of their associated ink rollers (not shown).
  • an automatic image capture camera or the like
  • treatment system associated to an electronic system for, according to one embodiment, detecting the absence or presence of each of said marks M 1 , M 2 , M 3 , M 4 , M 5 on said laminar material 2 and acting accordingly by increasing or decreasing the pressure exerted by each printing roller R 1 , R 2 , R 3 , R 4 , R 5 on the laminar material 2, as well as the pressure of their associated ink rollers (not shown).
  • the method proposed by the invention comprises, to perform said pressure adjustment, comparing, by means of said electronic system, the marks M 1 , M 2 , M 3 , M 4 , M 5 captured with respective pre-determined reference marks registered in said electronic system and indicative of a good printing quality (due to their color, shape, etc.), and if said comparison offers as a result a discrepancy or deviation indicative of the fact that the quality of any of the marks M 1 , M 2 , M 3 , M 4 , M 5 captured is not good, compensating said discrepancy by means of adjusting the pressure of the corresponding printing roller R 1 , R 2 , R 3 , R 4 , R 5 which has printed said image and of a corresponding ink roller (not shown) to which it is associated.
  • the method proposed comprises taking as a common reference a first mark M 1 , the printing roller R 1 of which has not been moved , and adjusting the position of the printing rollers R 2 , R 3 , R 4 , R 5 carrying the remaining marks M 2 , M 3 , M 4 , M 5 until the position of said marks M 2 , M 3 , M 4 , M 5 , once they have been printed on the material 2, is identical to that of said first mark M 1 , i.e., until all the marks M 1 , M 2 , M 3 , M 4 , M 5 overlap as shown in Figure 3d.
  • the method proposed comprises:
  • the common reference position is not the position of the first mark M 1 detected, but another different one, such as a pre-determined position different from the relative positions of the marks M 1 , M 2 , M 3 , M 4 , M 5 detected , it being possible for said embodiment, not shown, that the first mark M 1 has also been moved in initial step, since it is not used as reference for the register adjustment of the printing rollers R 2 , R 3 , R 4 , R 5 of the remaining marks M 2 , M 3 , M 4 , M 5 .

Claims (15)

  1. Verfahren zur Bestimmung von gedruckten Bildern in Bezug auf Druckgruppen, umfassend die Verwendung eines Druckers mit mindestens einer ersten und einer zweiten Druckgruppe beinhaltend jeweiligen erste (R1) und zweite (R2) Druckwalzen, welche eine gleiche Druckentwicklung aufweisen, jede der genannten Druckwalzen (R1, R2) mit mindestens einem jeweiligen auf einem laminaren Material (2) zu druckenden charakteristischen Bild (M1, M2), wobei die genannten charakteristischen Bilder (M1, M2) Hilfsmarkierungen sind und wobei das Verfahren Folgendes umfasst:
    i) das Betätigen mindestens der genannten Druckgruppen, um ein erstes Drucken der genannten charakteristischen Bilder (M1, M2) auf dem genannten zu druckenden laminaren Material (2) durchzuführen;
    und wobei das genannte Verfahren dadurch gekennzeichnet ist, dass es die Bestimmung umfasst, welche Walze mit jedem der genannten charakteristischen Bilder (M1, M2) assoziiert ist, mittels des automatischen und sequenziellen Durchführens, nach dem genannten Schritt i), der folgenden Schritte:
    ii) das Detektieren, mittels eines automatischen Detektionssystems, der genannten charakteristischen Bilder (M1, M2) nachdem sie auf dem zu druckenden Material (2) gedruckt worden sind, um sie mindestens zu identifizieren und deren relative Position innerhalb der genannten Druckentwicklung zu kennen,
    iii) das Bewegen in einer gesteuerten Weise des Quer- und/oder Längsregisters mindestens einer der genannten Druckwalzen (R2),
    iv) das Betätigen mindestens der genannten Druckgruppen, um ein zweites Drucken der genannten charakteristischen Bilder (M1, M2) auf dem genannten zu druckenden laminaren Material (2) durchzuführen;
    v) das Detektieren auf dem zu druckenden Material (2), mittels des genannten automatischen Detektionssystems, der genannten charakteristischen Bilder (M1, M2), welche auf dem zu druckenden Material (2) gedruckt sind, um sie mindestens zu identifizieren und deren relative Position innerhalb der genannten Druckentwicklung zu kennen,
    vi) das Vergleichen des Ergebnisses der Detektionen aus Schritt v) mit demjenigen der Detektionen aus Schritt ii), um eine mögliche Positionsdiskrepanz für mindestens eines der charakteristischen Bilder (M1, M2) zu bestimmen,
    vii.1) das Bestimmen, dass eine der genannten Druckwalzen (R1, R2) mit einem charakteristischen Bild (M1, M2) assoziiert ist, welches einer Positionsdiskrepanz unterzogen worden ist, welche mindestens eins beträgt, mindestens, wenn das Quer- und/oder Längsregister der genannten Druckwalze (R1, R2) im genannten Schritt iii) bewegt worden ist, und/oder vii.2) das Bestimmen, dass eine der genannten Druckwalzen (R1, R2) mit einem der genannten charakteristischen Bilder (M1, M2) assoziiert ist, welches nicht einer Positionsdiskrepanz unterzogen worden ist, wenn das Register der genannten Druckwalze (R1, R2) nicht im genannten Schritt iii) bewegt worden ist.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der genannte Schritt vii.1) die Bestimmung umfasst, dass eine der genannten Druckwalzen (R1, R2) mit dem genannten charakteristischen Bild (M1, M2) assoziiert ist, welches einer Positionsdiskrepanz unterzogen worden ist, welche mindestens eins beträgt, wenn das Register der genannten Druckwalze (R1, R2) im genannten Schritt iii) bewegt worden ist, mindestens mit einer Richtung, welche derjenigen, vom gedruckten charakteristischen Bild (M1, M2) erfahrenen entspricht, welches der genannten Positionsdiskrepanz unterzogen worden ist.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Schritte aus Anspruch 1 vor einem Vorgang des Druck- und/oder Registereinstellens mindestens eines Teils der Druckwalzen (R1, R2) durchgeführt werden.
  4. Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass es die Durchführung mindestens der genannten Schritte vi) bis ix) mittels eines elektronischen Systems, welches mit dem genannten automatischen Detektionssystem assoziiert ist, umfasst.
  5. Verfahren nach Anspruch 1, 2, 3 oder 4, dadurch gekennzeichnet, dass die genannten, in den Schritten ii) und v) durchgeführten Detektionen mittels eines automatischen Detektionssystems durchgeführt werden, welches ein automatisches Bilderfassungs- und -verarbeitungssystem beinhaltend einen oder mehreren photoelektrischen Sensoren oder mindestens eine Kamera, umfasst.
  6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass die Schritte i), iii) und iv) von einem elektronischen System, welches Befehle mittels geeigneter Steuersignale zu Betätigungsmitteln zur Betätigung der Gruppen und der Druckwalzen sendet, durchgeführt werden.
  7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, dass die Schritte ii) und v) mit der Zusammenarbeit des genannten elektronischen Systems, welches mit dem genannten automatischen Bilderfassungs- und -verarbeitungssystem assoziiert ist, durchgeführt werden.
  8. Verfahren nach Anspruch 4, 5, 6 oder 7, dadurch gekennzeichnet, dass, um die genannte Druckeinstellung durchzuführen, es das Vergleichen, mittels des genannten elektronischen Systems, der erfassten charakteristischen Bilder (M1, M2, M3...Mn) mit jeweiligen vorbestimmten charakteristischen Bezugsbildern, welche im genannten elektronischen System registriert sind und auf eine gute Druckqualität hindeuten, umfasst, und, wenn das genannte Vergleichen als Ergebnis eine Diskrepanz oder Abweichung bietet, welche auf die Tatsache, dass die Qualität eines der erfassten charakteristischen Bilder (M1, M2, M3...Mn) nicht ausreichend ist, hindeutet, das Ausgleichen der genannten Diskrepanz mittels der Einstellung des Druckes der entsprechenden Druckwalze (R1, R2, R3... Rn), welche das genannte Bild gedruckt hat, und einer entsprechenden Farbwalze, mit welcher sie assoziiert ist.
  9. Verfahren zur Bestimmung von gedruckten Bildern in Bezug auf Druckgruppen, umfassend die Verwendung eines Druckers mit mindestens einer ersten und einer zweiten Druckgruppe beinhaltend jeweiligen ersten (R1) und zweiten (R2) Druckwalzen, welche eine gleiche Druckentwicklung aufweisen, jede der genannten Druckwalzen (R1, R2) mit mindestens einem jeweiligen auf einem laminaren Material (2) zu druckenden charakteristischen Bild (M1, M2), wobei die genannten charakteristischen Bilder (M1, M2) Hilfsmarkierungen sind und wobei das Verfahren Folgendes umfasst:
    i) das Betätigen mindestens der genannten Druckgruppen, um ein erstes Drucken der genannten charakteristischen Bilder (M1, M2) auf dem genannten zu druckenden laminaren Material (2) durchzuführen;
    und wobei das genannte Verfahren dadurch gekennzeichnet ist, dass es die Bestimmung umfasst, welche Walze mit jedem der genannten charakteristischen Bilder (M1, M2) assoziiert ist, mittels des automatischen und sequenziellen Durchführens, nach dem genannten Schritt i), der folgenden Schritte:
    ii) das Detektieren, mittels eines automatischen Detektionssystems, der genannten charakteristischen Bilder (M1, M2) nachdem sie auf dem zu druckenden Material (2) gedruckt worden sind, um sie mindestens zu identifizieren und deren relative Position innerhalb der genannten Druckentwicklung zu kennen,
    iii) das Entnehmen des Druckzustandes aus mindestens einer der genannten Druckwalzen (R2),
    iv) das Betätigen mindestens der genannten Druckgruppen, um ein zweites Drucken der genannten charakteristischen Bilder (M1, M2) auf dem genannten zu druckenden laminaren Material (2) durchzuführen;
    v) das Detektieren auf dem zu druckenden Material (2), mittels des genannten automatischen Detektionssystems, der genannten charakteristischen Bilder (M1, M2), wenn sie erneut auf dem zu druckenden Material (2) gedruckt worden sind, um sie mindestens zu identifizieren und deren relative Position innerhalb der genannten Druckentwicklung zu kennen, und die Abwesenheit der genannten charakteristischen Bilder (M1, M2), welche nicht erneut auf dem genannten laminaren Material (2) im genannten Schritt iv) gedruckt worden sind, zu detektieren,
    vi) das Vergleichen des Ergebnisses der Detektionen aus Schritt v) mit demjenigen der Detektionen aus Schritt ii), um das Verschwinden eines der genannten charakteristischen Bilder (M1, M2) zu bestimmen,
    vii.3) das Bestimmen, dass eine der genannten Druckwalzen (R1, R2) mit einem der genannten charakteristischen Bilder (M1, M2), welches aus dem Drucken verschwunden ist, assoziiert ist, wenn die genannte Druckwalze (R1, R2) aus dem Druckzustand im genannten Schritt iii) entnommen worden ist.
  10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass nachdem Schritt vii.3) durchgeführt wird, mindestens ein Vorgang der Druckeinstellung der genannten Druckwalzen (R1, R2) durchgeführt wird.
  11. Verfahren nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass es die Durchführung mindestens der genannten Schritte vi) bis ix) mittels eines elektronischen Systems, welches mit dem genannten automatischen Detektionssystem assoziiert ist, umfasst.
  12. Verfahren nach Anspruch 9, 10 oder 11, dadurch gekennzeichnet, dass die genannten, in den Schritten ii) und v) durchgeführten Detektionen mittels eines automatischen Detektionssystems durchgeführt werden, welches ein automatisches Bilderfassungs- und -verarbeitungssystem beinhaltend einen oder mehreren photoelektrischen Sensoren oder mindestens eine Kamera umfasst.
  13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass die Schritte i), iii) und iv) von einem elektronischen System, welches Befehle mittels geeigneter Steuersignale zu Betätigungsmitteln zur Betätigung der Gruppen und der Druckwalzen sendet, durchgeführt werden.
  14. Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass die Schritte ii) und v) mit der Zusammenarbeit des genannten elektronischen Systems, welches mit dem genannten automatischen Bilderfassungs- und -verarbeitungssystem assoziiert ist, durchgeführt werden.
  15. Verfahren nach Anspruch 11, 12, 13 oder 14, dadurch gekennzeichnet, dass, um die genannte Druckeinstellung durchzuführen, es das Vergleichen, mittels des genannten elektronischen Systems, der erfassten charakteristischen Bilder (M1, M2, M3...Mn) mit jeweiligen vorbestimmten charakteristischen Bezugsbildern, welche im genannten elektronischen System registriert sind und auf eine gute Druckqualität hindeuten, umfasst, und, wenn das genannte Vergleichen als Ergebnis eine Diskrepanz oder Abweichung bietet, welche auf die Tatsache, dass die Qualität eines der erfassten charakteristischen Bilder (M1, M2, M3...Mn) nicht ausreichend ist, hindeutet, das Ausgleichen der genannten Diskrepanz mittels der Einstellung des Druckes der entsprechenden Druckwalze (R1, R2, R3... Rn), welche das genannte Bild gedruckt hat, und einer entsprechenden Farbwalze, mit welcher sie assoziiert ist.
EP07788596.0A 2006-07-28 2007-06-12 Verfahren zur bestimmung von gedruckten bildern Active EP2055482B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200602036A ES2300196B1 (es) 2006-07-28 2006-07-28 Metodo de determinacion de imagenes impresas respecto a grupos de impresion.
PCT/ES2007/000348 WO2008012381A2 (es) 2006-07-28 2007-06-12 Método de determinación de imágenes impresas

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EP2055482A4 EP2055482A4 (de) 2010-04-14
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IL212649A0 (en) * 2010-05-03 2011-07-31 Advanced Vision Technology A V T Ltd Method and system for registering and setting up a press machine by employing microdot marks
ITVI20100163A1 (it) * 2010-06-11 2011-12-12 Ofem Converting S R L Procedimento per l'allineamento dei registri del colore per macchine da stampa e relativo programma per elaboratore
EP2422979A1 (de) * 2010-08-31 2012-02-29 Fischer & Krecke GmbH Drehdruckpresse mit zentralem Druckzylinder
ES2395182B1 (es) * 2011-08-12 2013-11-28 Comexi Group Industries, Sau Método para controlar la operación de una máquina impresora y máquina impresora flexográfica para su implementación.
EP3251849A1 (de) * 2016-05-31 2017-12-06 Windmöller & Hölscher KG Flexodruckmaschine
EP4026697A1 (de) * 2021-01-08 2022-07-13 manroland Goss web systems GmbH Druckkontrollstreifen

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ES2300196A1 (es) 2008-06-01
WO2008012381A3 (es) 2008-03-06
BRPI0714647B1 (pt) 2018-07-31
EP2055482A2 (de) 2009-05-06
ES2300196B1 (es) 2009-02-01
EP2055482A4 (de) 2010-04-14
ES2712248T3 (es) 2019-05-10
WO2008012381A2 (es) 2008-01-31
WO2008012381B1 (es) 2008-04-17
BRPI0714647A2 (pt) 2012-12-25

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