EP3426492B1 - Method for checking the maintenance of register of printed images to be printed on two opposite sides of a printing material - Google Patents

Method for checking the maintenance of register of printed images to be printed on two opposite sides of a printing material Download PDF

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Publication number
EP3426492B1
EP3426492B1 EP17710508.7A EP17710508A EP3426492B1 EP 3426492 B1 EP3426492 B1 EP 3426492B1 EP 17710508 A EP17710508 A EP 17710508A EP 3426492 B1 EP3426492 B1 EP 3426492B1
Authority
EP
European Patent Office
Prior art keywords
printing
printed
register
cylinder
rotary
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.)
Active
Application number
EP17710508.7A
Other languages
German (de)
French (fr)
Other versions
EP3426492A1 (en
Inventor
Florian BUMM
Steffen Fischer
Sebastian Franz
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.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Publication date
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Publication of EP3426492A1 publication Critical patent/EP3426492A1/en
Application granted granted Critical
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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
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F11/00—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination
    • B41F11/02—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination for securities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/025—Registering devices
    • 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
    • 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
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/16—Registering devices with means for displacing the printing formes on the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/005—Attaching and registering printing formes to supports
    • 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
    • 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
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/02—Cleaning arrangements or devices for forme cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/06—Cleaning arrangements or devices for offset cylinders
    • 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
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/90—Register control
    • B41P2213/91—Register control for sheet printing presses
    • 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
    • B41P2233/10—Starting-up the machine
    • B41P2233/13—Pre-registering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/26—Spraying devices

Definitions

  • the invention relates to a method for checking a registration of printed images to be printed on two opposite sides of a printing material according to the preamble of claim 1.
  • print images printed on the two opposite sides of the printing material must preferably be in a predefined relationship with regard to their relative position to one another, taking into account previously defined tolerances, this ratio remaining as unchanged as possible in the continuous printing of the rotary printing press, since a deviation from one for This ratio predetermined setpoint, in particular a beyond the predetermined tolerances exceeding deviation as a quality-reducing effect.
  • the relation which relates to the relative position of printed images printed on both sides of the printing substrate consists, for example, of B. in that these printed images as congruent or complement each other to a single geometric figure or z. B. separated in their respective position from each other in a z. B. are arranged by the setpoint predetermined fixed distance from each other.
  • the printed images can z. B.
  • the printed image may be a security feature z. B. a banknote or other value document.
  • This security feature is z. B. such that on the front and back at one point of the bill or the document of value z. B.
  • Such security features are preferably produced in a so-called simultaneous printing process.
  • the printing material is preferably designed as at least one printed sheet and consists for. B. of paper, cardboard or cardboard.
  • a method for arranging at least one printing plate on at least one plate cylinder of a printing press, wherein depending on at least one register pattern of a printing material new settings for at least one temperature of at least one arranged on the at least one plate cylinder pressure plate and / or at least one cylinder bale of the at least one plate cylinder and / or at least one temperature control means cooperating with this pressure plate and / or this at least one plate cylinder and the at least one temperature of at least one pressure plate and / or this at least one cylinder bale and / or this at least one temperature control is changed according to the new settings.
  • a method for checking the color separations printed on a carrier material in which a first color separation of a first color is produced on the carrier material, wherein the first color separation comprises at least a first part of an image of binary symbols with coded data, at least a second color separation of one second color on the support material is generated, wherein the second color separation comprises a second part of the image of the binary symbols with coded data, in which detected by means of a sensor arrangement, the image and the data are determined.
  • JP S60 85961 A a method for determining color register errors in offset printing is known, in which determined by means of a camera distances between predetermined applied on a sheet marks and with the distances be compared between corresponding markers in a template.
  • a see-through security element for value documents which has superimposed patterns on two opposite sides of a translucent carrier material, the two patterns complementing each other in register-accurate arrangement to form a complete image.
  • a device for determining the turning passport in a double-sided printed sheet in which a first registration element on a recto printing side and a second registration element on a reverse side of the sheet illuminated and the illuminated Passerimplantation are comparable with respect to their position to each other, with a recording for introducing a the Passeremia bearing pressure sheet having beam deflection, which reflects the reflected by the illuminated passer elements images one above the other or side by side, so that the position of the passer elements is evaluated by an observation device.
  • a device for measuring marks on a printed product top side and a printed product underside with respect to each other and to a printed product edge consisting of two transducers, each associated with a printing material side, at least one reference mark carrier and a clamping device, wherein the clamping device consists of two clamping elements, wherein the clamping elements about a common bearing axis of a bearing are rotatably mounted to each other, wherein the clamping elements in the bearing axis extending each have a longitudinal gap opening, the folded form a nip, wherein the printed product insertable into this nip and fixable by rotation of the clamping elements and the measuring marks including the printed product edge lie in the region of the longitudinal gap opening.
  • DE 298 19 735 U1 is a device for determining a turning passport in a double-sided sheet known, in which a first registration element on the Schön- and a second registration element on the reverse side of the sheet are illuminated and the illuminated Passerimplantation are comparable with respect to their position to each other, one a sheet recording for Introduction of a Passerimplantation bearing arc section having Strahlumlenk issued reflected from the illuminated Passerimplantationn images above or next to each other reflects that the position of the register element of the recto printing side and the position of the register element of the back pressure side are evaluated by an observation device.
  • a register mark inspecting device which inspects a positional relationship between register marks on a front side and a back side of a printed product, the register mark inspecting device having two lenses each of which generates an image of the register marks on the front side and the back side of the printed product and which are arranged opposite to each other.
  • a side register correcting apparatus which has a register correcting unit capable of correcting register movement of a fiber web through each plural printing units and a fan correcting unit capable of correcting a width of the fiber web stretched in a width direction
  • the side register correcting device comprising: a) a register detecting and estimating unit capable of estimating and detecting a register correction amount by the register correcting unit based on at least two register marks printed on the fiber web through each of the printing units when plural printing units are in one traveling fiber web to print a correction by the register correction unit and the fan correction unit; b) a register correction control unit capable of automatically controlling the register correction unit in real time based on the register correction amount derived by the register detecting and estimating unit; c) a fan detection and estimation unit capable of estimating and detecting a fan correction amount by the fan correction unit based on a register flag; and d) a fan correction control unit capable of automatically controlling the fan correction unit in real time based on the fan
  • US 5 036 763 A is a convertible multicolor printing machine for perfecting, in particular of banknotes, known with two substantially identically constructed halves, each a first cylinder, one against this pressed image transfer cylinder, a second cylinder designed as a rubber cylinder, which is adjustable between a compressed against the first cylinder offset printing position and a spaced from this collective pressure position, several standing in contact with this blanket cylinder convertible, formed in the offset printing position as offset plate cylinder and in the collective pressure position as a color selection cylinder , each of an inking unit einstärbbare cylinder, a rubber cylinder associated with the adjustable collective plate cylinder, which is penetrate Kohlbar in the offset printing position from the blanket cylinder in an inoperative position and cooperates in the collective pressure position with both the blanket cylinder and the image transfer cylinder, and in at least one of the machine halves an additional printing unit having a plate cylinder colored by its own inking unit, the two first cylinders being adjacent to each machine half adjacent printing cylinder act, the pressure cylinder and the image transfer
  • the invention has for its object to provide a method for checking a register of printing on two opposite sides of a printing material to be printed images.
  • the achievable with the present invention consist in that an examination of the register accuracy of printed on two opposite sides of a printing material images is made possible without the aid of a print image foreign reference.
  • Printed images intended for opposite sides of the printing substrate are checked directly and directly by viewing the same side of the printing substrate or by simultaneously recording these printed images in the same photographic image. Therefore, the proposed method is also suitable for substrates with low transparency.
  • Fig. 1 and Fig. 2 show by way of example in each case schematically and greatly simplified a printing unit 01 a z. B. used in value printing or packaging printing rotary printing machine, z. B. a printing in an offset printing process rotary printing machine, wherein the printing unit 01 two cooperating in the printing process, ie against each other employed printing cylinder 02; 03 has.
  • the preferably not assigned by one of the rotary printing press shown control station from remotely operated or at least remotely operable printing unit 01 has for each of the two cooperating printing cylinder 02; 03 in each case at least one inking unit (in the Fig. 1 and 2 not shown) and optionally in each case at least one dampening unit (in the Fig. 1 and 2 not shown).
  • each of the two cooperating printing cylinder 02; 03 which are then each formed as a transfer cylinder or as a blanket cylinder, in each case at least one forme cylinder (in the Fig. 1 and 2 not shown) assigned.
  • For each of the two cooperating printing cylinder 02; 03 is preferably also a washing device 04; 06 provided, with which each of the printing cylinder 02; 03 each of ink can be cleaned.
  • Each printing cylinder 02; 03 can transfer at least one print image to a substrate 07 ( Fig. 2 ), wherein in the circumferential direction of each printing cylinder 02; 03 each preferably several print images can be arranged one behind the other.
  • each printing cylinder 02; 03 each have multiple print images next to each other.
  • the respective print images can be monochrome or multicolored.
  • the respective direction of rotation of each printing cylinder 02; 03 is indicated in the figures in each case by a directional arrow.
  • a transport direction T provided for the transport of the printing material 07 by the printing unit 01 is indicated by a directional arrow ( Fig. 2 ).
  • printing unit 01 is z. B. in the continuous printing of the rotary printing machine, the first page of the printing material 07, z. B. whose front printed by means of the first printing cylinder 02 and the first side opposite the second side of the printing substrate 07, z. B.
  • the printing unit 01 of the rotary printing press is thus suitable for printing on opposite sides of the printing substrate 07 simultaneously in perfecting without turning this printing material 07, ie in a simultaneous printing process.
  • a method is proposed with the following method steps: Preferably, during setup of the rotary printing machine, a print image of the first printing cylinder 02 is first printed on the second printing cylinder 03 by the inked with at least one ink first printing cylinder 02 is made in a contact with the second printing cylinder 03, so that during a z. B. triggered at the control center rotation of the juxtaposed printing cylinder 02; 03 a printed image to be printed by the first printing cylinder 02 is transferred directly and directly to the lateral surface of the second printing cylinder 03.
  • the substrate 07, z. B. a single sheet or a sequence of multiple sheets or a printing substrate, through the nip of the two mutually employed printing cylinder 02; 03 out, so that the substrate 07 in contact with the two cooperating printing cylinder 02; 03 is printed such that printed on the second printing unit cylinder 03 printed image is printed on the same side of the printing material 07 together with a same or another each printed by the second printing cylinder 03 in a continuous printing of the rotary printing machine print image.
  • these two printed together on the same side of the printing substrate 07 printed images are checked for their registration and / or also measured.
  • the specified tolerances are usually in the range of significantly less than 1 millimeter.
  • the relative position of the printing press to be printed in the continuous printing of the rotary printing press on both sides of the printing substrate 07, but to test its register accuracy but jointly printed on the same side of the printing material 07 relationship exists z. B. in that these printed images as congruent or complementary to each other to a single geometric figure or z. B. separated in their respective position from each other in a z. B. are arranged by the setpoint predetermined fixed distance from each other.
  • a deviation, in particular beyond the previously defined tolerances, from the setpoint value specified for this ratio has the effect of reducing the quality.
  • a detected deviation can also z. B. by means of the optical system to determine from the measured value at least one manipulated variable for setting the rotary printing press.
  • the optical system has at least one detection device z. B. in the form of a camera and usually a lighting device and a particular digital image processing device for evaluating the recorded by the at least one detection device photographic image of the relevant printed image or the relevant printed images.
  • the tested register accuracy of the printing press to be printed on the opposite sides of the printing substrate 07 during continuous printing of the rotary printing press but jointly printed on the same side of the printing substrate 07 is found to be good, preferably at least for the second printing cylinder 03 to which a printed image was transferred from the first printing cylinder 02, in particular before a start of the continuous printing of the rotary printing machine for the purpose of removing the printed image transferred to it a cylinder washing by this second printing cylinder 03 associated Washing device 06 automatically or manually z.
  • B. is operated from the control room.
  • both printing cylinder 02; 03 washed by their respective washing device 04; 06 is actuated.
  • the at least one manipulated variable for setting the rotary printing press due to the determination of the at least one manipulated variable for setting the rotary printing press, as this manipulated variable from the measured value for the determined deviation of the predetermined ratio for the relative position of the imprinting the rotary press on opposite sides of the printing substrate 07 to be printed, for testing their registry but has resulted in common printed on the same side of the substrate 07 printed images of the target value. It is preferably provided that at least the second printing group cylinder 03, to which a printed image has been transferred from the first printing cylinder 02, is washed after each registration check.
  • the printing unit 01 has, in a cooperative arrangement, the first printing cylinder 02 and the second printing cylinder 03, wherein the first printing cylinder 02 z. B. for the Perfecting and the second printing cylinder 03 z. B. is used for the perfecting.
  • the printing cylinder 02; 03 can be a through the nip between the first Printing cylinder 02 and the second printing cylinder 03 guided substrate 07, which is designed in particular as a sheet, simultaneously, so be printed on both sides simultaneously.
  • the in the Fig. 3 exemplified rotary printing machine is z.
  • the two printing cylinder 02; 03 each as a transfer cylinder, in particular each formed as a blanket cylinder.
  • this exemplified printing unit 01 both the z. B. used for the Perfecting first printing cylinder 02 each z. B. four forme cylinder 11 to 14 and to the z. B. for the perfecting second printing cylinder 03 each z. B. four forme cylinder 16 to 19 employed or at least employable.
  • the form cylinder 11 to 14; 16 to 19 are each referred to as a plate cylinder.
  • To each of the form cylinder 11 to 14; 16 to 19 are each at least one inking unit 21 to 24; 26 to 29 employed or at least employable.
  • each inking unit 21 to 24; 26 to 29 each also a dampening unit 31 to 34; 37 to 39, which is needed in a wet offset printing process.
  • the beautiful printing-side inking units 21 to 24 and possibly also the beautiful pressure side dampening units 31 to 34 are z. B. arranged in a movable frame carriage 61.
  • the rebate-side inking units 26 to 29 and, where appropriate, the offset-side dampening units 37 to 39 z. B.
  • both frame carriage 61; 62 are movable apart in each case in the opposite direction and in each direction facing each other zufahrbar, said rack carriage 61; 62 to the stationary arranged printing unit 01 each can be adjusted or turned off.
  • At the periphery of the two printing cylinder 02; 03 are consecutively several, z. B. each arranged three blankets.
  • the form cylinder 11 to 14; 16 to 19 have at their respective perimeter z. B. only a single printing plate, wherein a directed in the circumferential direction printing form length each preferably corresponds with a directed in the circumferential direction blanket length.
  • an inspection unit 08 is preferably provided, wherein this inspection unit 08 is designed in particular as an optical system with a detection device in the form of a camera and a lighting device.
  • the inspection unit 08 is z. B. also used to check the register validity of printed images.
  • a provided by a sheet feeder 41 sheet is using a z. B. as a conveyor belt formed first conveyor 42 in the transport direction T of a sheet fed 43, wherein the sheet metal system 43 introduces the relevant sheet in the printing unit 01.
  • the printing unit 01 accepts the relevant sheet from the sheet metal plant 43 z. B. a first transfer drum 44.
  • Rotary printing machine shown by way of example is provided that the straight printing page of the relevant sheet first with at least one ink, preferably with several, z. B. is printed with two inks, each z. B. by irradiation with ultraviolet light (UV) to be dried.
  • UV ultraviolet light
  • a (counter) pressure cylinder 46 is provided in cooperation with the first transfer drum 44, to which a designed as a blanket cylinder transfer cylinder 47 is employed or at least employable.
  • a transfer cylinder 47 z. B one or more each designed as a plate cylinder form cylinder 48; 49 employed or at least employable.
  • These form cylinder 48; 49 are each of a further inking unit 51; Colored 52, whereby these inking units 51; 52 in turn, if necessary, in each case with a dampening unit 53; 54 can interact.
  • a specially designed as a blanket washing device washing device 56 may also be provided for the optionally provided transfer cylinder 47.
  • Printing sheet is preferably initially passed past at least one UV dryer 57 before this sheet is transferred by means of a second transfer drum 58 to the second printing cylinder 03 and guided into the nip between the first printing couple cylinder 02 and the second printing cylinder 03.
  • a sheet After a sheet has passed through the nip between the first printing cylinder 02 and the second printing cylinder 03, it can already be inline, ie inspected within the rotary printing machine by means of the inspection unit 08 and z. B. to register validity of his printed images are checked before he then by means of a third transfer drum 63 a z. B. passed as a chain conveyor second conveyor 64 is passed.
  • the second conveyor 64 conveys the sheet from the printing unit 01 to a display 66, the display 66 in particular more, z. B. three delivery tray compartments 67; 68; 69 has.
  • the proposed method in an exemplary according to Fig. 3 Run illustrated rotary printing machine. Because the proposed method allows a simple check of the register on both sides simultaneously printed on a substrate 07 printed images.

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

Description

Die Erfindung betrifft ein Verfahren zur Prüfung einer Registerhaltigkeit von auf zwei gegenüberliegenden Seiten eines Bedruckstoffes zu druckenden Druckbildern gemäß dem Oberbegriff des Anspruches 1.The invention relates to a method for checking a registration of printed images to be printed on two opposite sides of a printing material according to the preamble of claim 1.

Zur Sicherung der Qualität von mit einer Rotationsdruckmaschine produzierten Druckerzeugnissen ist es notwendig, die Registerhaltigkeit von Druckbildern eines in der Rotationsdruckmaschine beidseitig, d. h. auf zwei gegenüberliegenden Seiten bedruckten Bedruckstoffes zu prüfen. Diese Prüfung, die gerade bei der Produktion teurer, z. B. im Wertdruck oder im hochwertigen Verpackungsdruck zu produzierender Druckerzeugnisse notwendig ist, erfolgt zumindest beim Einrichten der Rotationsdruckmaschine, also bevor die Rotationsdruckmaschine in Produktion, d. h. in ihren Fortdruck geht, wobei beim Einrichten am Produktionsprozess beteiligte Baugruppen der Rotationsdruckmaschine in ihrem Zusammenwirken derart eingestellt werden, dass Makulatur aufgrund mangelnder Registerhaltigkeit möglichst vermieden wird. Unter dem Begriff Register wird hier ein Zueinanderpassen von auf Vorder- und Rückseite des Bedruckstoffes gedruckten Druckbildern verstanden. Dies bedeutet, dass auf den beiden gegenüberliegenden Seiten des Bedruckstoffes gedruckte Druckbilder hinsichtlich ihrer relativen Lage zueinander vorzugsweise unter Berücksichtigung zuvor festgelegter Toleranzen in einem vorgegebenen Verhältnis stehen müssen, wobei dieses Verhältnis im Fortdruck der Rotationsdruckmaschine möglichst unverändert bleiben soll, da sich eine Abweichung von einem für dieses Verhältnis vorgegebenen Sollwert, insbesondere eine über die zuvor festgelegten Toleranzen hinausgehende Abweichung als qualitätsmindernd auswirkt. Das die relative Lage von beiderseits des Bedruckstoffes gedruckten Druckbildern betreffende Verhältnis besteht z. B. darin, dass diese Druckbilder möglichst deckungsgleich oder einander zu einer einzigen geometrischen Figur ergänzend oder z. B. in ihrer jeweiligen Lage voneinander getrennt in einem z. B. durch den Sollwert vorgegebenen festen Abstand zueinander angeordnet sind. Die Druckbilder können z. B. als beliebige geometrische Figuren bzw. Bildelemente oder Ornamente oder als Schriftzeichen oder als Symbole oder als Pagina oder als ein kompletter Satzspiegel ausgebildet sein. Bei dem Druckbild kann es sich um ein Sicherheitsmerkmal z. B. einer Banknote oder eines anderen Wertdokumentes handeln. Dieses Sicherheitsmerkmals ist z. B. dergestalt, dass sich auf der Vorder- und Rückseite an einer Stelle der Banknote oder des Wertdokumentes z. B. Teilornamente befinden, die sich gegen eine Lichtquelle betrachtet, d. h. in einer Durchsicht, zu einem Gesamtornament ergänzen. Solche Sicherheitsmerkmale werden vorzugsweise in einem sogenannten Simultandruckverfahren produziert. Der Bedruckstoff ist vorzugsweise als mindestens ein Druckbogen ausgebildet und besteht z. B. aus Papier, Pappe oder Karton.To ensure the quality of printed products produced by a rotary printing press, it is necessary to check the register accuracy of printed images of a printing material printed on both sides of the rotary printing machine, ie on two opposite sides. This test, especially in the production of expensive, z. B. in value printing or high-quality packaging print to be produced printed products is necessary, at least when setting up the rotary printing machine, ie before the rotary printing machine in production, ie in their production, which are set up during setup in the production process components of the rotary printing press in their interaction, Waste paper is avoided as much as possible due to lack of registration. The term register is understood here to be a matching of printed on the front and back of the substrate printed images. This means that print images printed on the two opposite sides of the printing material must preferably be in a predefined relationship with regard to their relative position to one another, taking into account previously defined tolerances, this ratio remaining as unchanged as possible in the continuous printing of the rotary printing press, since a deviation from one for This ratio predetermined setpoint, in particular a beyond the predetermined tolerances exceeding deviation as a quality-reducing effect. The relation which relates to the relative position of printed images printed on both sides of the printing substrate consists, for example, of B. in that these printed images as congruent or complement each other to a single geometric figure or z. B. separated in their respective position from each other in a z. B. are arranged by the setpoint predetermined fixed distance from each other. The printed images can z. B. be designed as any geometric figures or picture elements or ornaments or as characters or as symbols or as a pagina or as a complete type mirror. The printed image may be a security feature z. B. a banknote or other value document. This security feature is z. B. such that on the front and back at one point of the bill or the document of value z. B. Teilornamente, which considered against a light source, ie in a review, to complete a complete ornament. Such security features are preferably produced in a so-called simultaneous printing process. The printing material is preferably designed as at least one printed sheet and consists for. B. of paper, cardboard or cardboard.

Durch die DE 10 2012 214 585 A1 ist ein Verfahren zum Anordnen zumindest einer Druckplatte auf zumindest einen Plattenzylinder einer Druckmaschine bekannt, wobei in Abhängigkeit von zumindest einem Registermuster eines Bedruckstoffs neue Einstellungen für zumindest eine Temperatur zumindest einer auf dem zumindest einen Plattenzylinder angeordneten Druckplatte und/oder zumindest eines Zylinderballens des zumindest einen Plattenzylinders und/oder zumindest eines mit dieser Druckplatte und/oder diesem zumindest einen Plattenzylinder zusammenwirkenden Temperiermittels ermittelt werden und die zumindest eine Temperatur dieser zumindest einen Druckplatte und/oder dieses zumindest einen Zylinderballens und/oder dieses zumindest einen Temperiermittels gemäß den neuen Einstellungen verändert wird.By the DE 10 2012 214 585 A1 a method is known for arranging at least one printing plate on at least one plate cylinder of a printing press, wherein depending on at least one register pattern of a printing material new settings for at least one temperature of at least one arranged on the at least one plate cylinder pressure plate and / or at least one cylinder bale of the at least one plate cylinder and / or at least one temperature control means cooperating with this pressure plate and / or this at least one plate cylinder and the at least one temperature of at least one pressure plate and / or this at least one cylinder bale and / or this at least one temperature control is changed according to the new settings.

Durch die EP 2 269 824 A1 ist ein Verfahren zur Überwachung der passgerechten Bearbeitung einer Materialbahn in Anlagen mit folgenden Verfahrensschritten bekannt:

  • Bearbeiten der Materialbahn an einer ersten Stelle;
  • Unabhängiges Bearbeiten der Materialbahn an einer zweiten Stelle, wobei die Bearbeitung an den beiden Stellen jeweils eine sich in einem festen Abstand periodisch wiederholende identifizierbare Struktur hinterlässt;
  • Anordnen von Bildaufnahmeorten an Positionen, die einen vorgegebenen festen geometrischen Abstand aufweisen;
  • Aufnehmen einer Anzahl von Impulsen pro sich periodisch wiederholender Struktur;
  • Aufnehmen von dem Bahnweg der Materialbahn proportionalen Signalen am Bildaufnahmeort;
  • Errechnen der wahren Strukturlänge aus den dem Bahnweg proportionalen Signalen und den Impulssignalen pro periodischer Struktur;
  • Errechnen der Zeitpunkte für die Bildaufnahme aus der wahren Strukturlänge und den Impulssignalen pro periodischer Struktur;
  • Aufnehmen und Speichern eines ersten Bildes der ersten Stelle am ersten Bildaufnahmeort zu einem ersten Zeitpunkt;
  • Aufnehmen und Speichern eines zweiten Bildes der zweiten Stelle am zweiten Bildaufnahmeort zu einem zweiten späteren Zeitpunkt; und
  • gleichzeitiges Anzeigen des ersten und zweiten Bildes.
By the EP 2 269 824 A1 a method is known for monitoring the proper machining of a material web in installations with the following method steps:
  • Processing the web at a first location;
  • Independently processing the web at a second location, wherein the Processing leaves at the two locations in each case a periodically repeating at a fixed distance identifiable structure;
  • Arranging image pickup locations at positions having a predetermined fixed geometric distance;
  • Picking up a number of pulses per periodically repeating structure;
  • Picking up signals proportional to the web path of the web at the image pickup location;
  • Calculating the true structure length from the signals proportional to the web path and the pulse signals per periodic structure;
  • Calculating the times for the image acquisition from the true structure length and the pulse signals per periodic structure;
  • Taking and storing a first image of the first location at the first image capture location at a first time;
  • Taking and storing a second image of the second location at the second image capture location at a second later time; and
  • simultaneous display of the first and second image.

Durch die DE 10 2009 012 436 A1 ist ein Verfahren zum Überprüfen der auf ein Trägermaterial gedruckten Farbauszüge bekannt, bei dem ein erster Farbauszug einer ersten Farbe auf dem Trägermaterial erzeugt wird, wobei der erste Farbauszug zumindest einen ersten Teil einer Abbildung von binären Symbolen mit codierten Daten umfasst, mindestens ein zweiter Farbauszug einer zweiten Farbe auf dem Trägermaterial erzeugt wird, wobei der zweite Farbauszug einen zweiten Teil der Abbildung der binären Symbole mit codierten Daten umfasst, bei dem mit Hilfe einer Sensoranordnung die Abbildung erfasst und die Daten ermittelt werden.By the DE 10 2009 012 436 A1 A method is known for checking the color separations printed on a carrier material, in which a first color separation of a first color is produced on the carrier material, wherein the first color separation comprises at least a first part of an image of binary symbols with coded data, at least a second color separation of one second color on the support material is generated, wherein the second color separation comprises a second part of the image of the binary symbols with coded data, in which detected by means of a sensor arrangement, the image and the data are determined.

Durch die JP S60 85961 A ist ein Verfahren zur Ermittlung von Farbregisterfehlern im Offsetdruck bekannt, bei dem mittels einer Kamera Abstände zwischen zuvor festgelegten auf einem Druckbogen aufgebrachten Markierungen ermittelt und mit den Abständen zwischen korrespondierenden Markierungen in einer Vorlage verglichen werden.By the JP S60 85961 A a method for determining color register errors in offset printing is known, in which determined by means of a camera distances between predetermined applied on a sheet marks and with the distances be compared between corresponding markers in a template.

Durch die DE 102 60 124 A1 ist ein Durchsichtssicherheitselement für Wertdokumente bekannt, welches auf zwei gegenüberliegenden Seiten eines transluzenten Trägermaterials einander überlagernde Muster aufweist, wobei sich die beiden Muster bei registergenauer Anordnung zu einem vollständigen Bild ergänzen.By the DE 102 60 124 A1 For example, a see-through security element for value documents is known, which has superimposed patterns on two opposite sides of a translucent carrier material, the two patterns complementing each other in register-accurate arrangement to form a complete image.

Durch die DE 10 2007 053 594 A1 ist eine Einrichtung zur Bestimmung des Wendepassers bei einem beidseitig bedruckten Druckbogen bekannt, bei welchem ein erstes Passerelement auf einer Schöndruckseite und ein zweites Passerelement auf einer Widerdruckseite des Druckbogens beleuchtbar und die beleuchteten Passerelemente hinsichtlich ihrer Lage zueinander vergleichbar sind, mit einer eine Aufnahme zur Einführung eines die Passerelemente tragenden Druckbogens aufweisenden Strahlumlenkeinrichtung, welche die von den beleuchteten Passerelementen reflektierten Bilder übereinander oder nebeneinander spiegelt, sodass die Lage der Passerelemente von einer Beobachtungseinrichtung auswertbar ist.By the DE 10 2007 053 594 A1 a device for determining the turning passport in a double-sided printed sheet is known in which a first registration element on a recto printing side and a second registration element on a reverse side of the sheet illuminated and the illuminated Passerelemente are comparable with respect to their position to each other, with a recording for introducing a the Passerelemente bearing pressure sheet having beam deflection, which reflects the reflected by the illuminated passer elements images one above the other or side by side, so that the position of the passer elements is evaluated by an observation device.

Durch die DE 199 45 979 C1 ist eine Vorrichtung zur Messung von Messmarken auf einer Druckproduktoberseite und einer Druckproduktunterseite in Bezug zueinander und zu einer Druckproduktkante bekannt, bestehend aus zwei Messwertaufnehmern, die je einer Bedruckstoffseite zugeordnet sind, mindestens einem Bezugsmarkenträger und einer Klemmeinrichtung, wobei die Klemmeinrichtung aus zwei Klemmelementen besteht, wobei die Klemmelemente um eine gemeinsame Lagerachse einer Lagerung drehbar zueinander gelagert sind, wobei die Klemmelemente in der Lagerachse verlaufend je eine Längsspaltöffnung aufweisen, die zusammengeklappt einen Klemmspalt bilden, wobei das Druckprodukt in diesen Klemmspalt einführbar sowie durch Verdrehen der Klemmelemente fixierbar und die Messmarken einschließlich der Druckproduktkante im Bereich der Längsspaltöffnung liegen.By the DE 199 45 979 C1 a device for measuring marks on a printed product top side and a printed product underside with respect to each other and to a printed product edge is known, consisting of two transducers, each associated with a printing material side, at least one reference mark carrier and a clamping device, wherein the clamping device consists of two clamping elements, wherein the clamping elements about a common bearing axis of a bearing are rotatably mounted to each other, wherein the clamping elements in the bearing axis extending each have a longitudinal gap opening, the folded form a nip, wherein the printed product insertable into this nip and fixable by rotation of the clamping elements and the measuring marks including the printed product edge lie in the region of the longitudinal gap opening.

Durch die DE 298 07 663 U1 ist eine Einrichtung zur Bestimmung des Wendepassers bei auf der Schön- und der Widerdruckseite bedruckten Bogen bekannt, wobei eine der Schön- und eine der Widerdruckseite des Bogens zugeordnete Meßeinrichtung zur Erfassung der Position von Punkten auf der Schön- und Widerdruckseite des Bogens vorgesehen ist, wobei der Bogen zwischen die beiden Meßeinrichtungen einlegbar und in einer für die Messung vorgesehenen Position fixierbar ist.By the DE 298 07 663 U1 a device for determining the reversing pass in printed on the perfecting and the reverse side printed sheet is known, one of the beautiful and one of the reverse side of the sheet associated measuring device is provided for detecting the position of points on the recto and opposite side of the sheet, said the sheet between the two measuring devices can be inserted and fixed in a position provided for the measurement position.

Durch die DE 298 19 735 U1 ist eine Einrichtung zur Bestimmung eines Wendepassers bei einem beidseitig bedruckten Bogen bekannt, bei welchem ein erstes Passerelement auf der Schön- und ein zweites Passerelement auf der Widerdruckseite des Bogens beleuchtbar sind und die beleuchteten Passerelemente hinsichtlich ihrer Lage zueinander vergleichbar sind, wobei eine eine Bogenaufnahme zur Einführung eines die Passerelemente tragenden Bogenabschnittes aufweisende Strahlumlenkeinrichtung die von den beleuchteten Passerelementen reflektierten Bilder derart über- oder nebeneinander spiegelt, daß die Lage des Passerelementes der Schöndruckseite und die Lage des Passerelementes der Widerdruckseite zueinander von einer Beobachtungseinrichtung auswertbar sind.By the DE 298 19 735 U1 is a device for determining a turning passport in a double-sided sheet known, in which a first registration element on the Schön- and a second registration element on the reverse side of the sheet are illuminated and the illuminated Passerelemente are comparable with respect to their position to each other, one a sheet recording for Introduction of a Passerelemente bearing arc section having Strahlumlenkeinrichtung reflected from the illuminated Passerelementen images above or next to each other reflects that the position of the register element of the recto printing side and the position of the register element of the back pressure side are evaluated by an observation device.

Durch die JP H05 254 105 A ist eine Registermarkeninspektionsvorrichtung bekannt, welche ein Positionsverhältnis zwischen Registermarken auf einer Frontseite und einer Rückseite eines Druckerzeugnisses inspiziert, wobei die Registermarkeninspektionsvorrichtung zwei Objektive aufweist, welche von den Registermarken auf der Frontseite und der Rückseite des Druckerzeugnisses jeweils ein Abbild erzeugen und die sich gegenüberliegend angeordnet sind.By the JP H05 254 105 A a register mark inspecting device is known which inspects a positional relationship between register marks on a front side and a back side of a printed product, the register mark inspecting device having two lenses each of which generates an image of the register marks on the front side and the back side of the printed product and which are arranged opposite to each other.

Durch die DE 103 22 547 A1 ist ein Verfahren zur Bestimmung und Korrektur von Registerabweichungen bei beiderseitig in Bogendruckmaschinen bedruckten Bogen mit einer einen Messtisch und einen zweidimensional parallel zum Messtisch beweglichen Messkopf aufweisenden Messeinrichtung für die Bogenkontrolle bekannt, wobei der Messtisch vertikale und horizontale Bogenanschläge außerhalb des maximalen Bogenformates aufweist und das Positioniersystem des beweglichen Messkopfes die Lage von Messpunkten auf dem Bogen mit einer Genauigkeit von 1/100 mm erfassen kann, mit folgenden Schritten:

  • Aufdrucken von Registermarken auf die Bogenvorder- und die -rückseite während des Vorder- und Rückseitendruckes in einer Bogendruckmaschine,
  • Auflegen des Bogens auf den Messtisch und Anlegen des Bogens an horizontalen und vertikalen Bogenanschlägen, die derselben Bogenecke zugeordnet sind,
  • Ermittlung des horizontalen und vertikalen Abstandes der dieser Bogenecke zugeordneten Registermarke auf der Bogenvorderseite von den nächstliegenden Seitenkanten des Bogens mittels eines Positioniersystems des Messkopfes,
  • Wendung des Bedruckstoffbogens und Anlegen derselben Bogenecke an den in Wenderichtung gegenüber liegenden Anschlägen,
  • Ermittlung des horizontalen und vertikalen Abstandes der Registermarke, die auf der Bogenrückseite derselben Bogenecke zugeordnet ist, von den nächstliegenden Seitenkanten des Bogens mittels des Positioniersystem des Messkopfes,
  • Berechnung der Lagedifferenzen zwischen den Registermarken auf der Bogenvorder- und -rückseite,
  • Lagekorrektur der Druckzylinder auf der Basis der ermittelten Lagedifferenzen zur Herstellung der Deckungsgleichheit der Registermarken.
By the DE 103 22 547 A1 is a method for determining and correcting register deviations in both sides printed in sheetfed presses with a measuring table and a two-dimensional parallel to the measuring cell movable measuring head measuring device for sheet control known, the measuring table vertical and horizontal sheet stops outside the maximum sheet format and has the positioning of the movable measuring head can detect the position of measuring points on the sheet with an accuracy of 1/100 mm, with the following steps:
  • Printing register marks on the sheet front and the back during the front and back printing in a sheet-fed press,
  • Placing the sheet on the measuring table and applying the sheet to horizontal and vertical sheet stops associated with the same corner of the sheet
  • Determination of the horizontal and vertical spacing of the register mark associated with this corner of the sheet on the sheet front side from the nearest side edges of the sheet by means of a positioning system of the measuring head,
  • Turning the printing material sheet and applying the same corner of the sheet to the opposite direction in the reversing direction,
  • Determining the horizontal and vertical distance of the register mark, which is assigned to the sheet back side of the same corner of the sheet, from the nearest side edges of the sheet by means of the positioning of the measuring head,
  • Calculation of the differences between the register marks on the front of the sheet and back,
  • Position correction of the printing cylinder on the basis of the determined position differences for establishing the registration of the register marks.

Durch die EP 2 447 071 A1 ist eine Seitenregisterkorrekturvorrichtung bekannt mit einer Registerkorrektureinheit, die im Stande ist, eine Registerbewegung einer Faserbahn durch jede mehrerer Druckeinheiten zu korrigieren, und einer Auffächerkorrektureinheit, die im Stande ist, eine Weite der Faserbahn zu korrigieren, die in eine Weitenrichtung gestreckt wird, wobei die Seitenregisterkorrekturvorrichtung aufweist: a) eine Registerdetektier- und -abschätzeinheit, die im Stande ist, einen Registerkorrekturbetrag durch die Registerkorrektureinheit basierend auf zumindest zwei Registermarkierungen abzuschätzen und zu detektieren, die auf die Faserbahn durch jede der Druckeinheiten gedruckt sind, wenn mehrere Druckeinheiten auf eine sich fortbewegende Faserbahn zum Durchführen einer Korrektur durch die Registerkorrektureinheit und die Auffächerkorrektureinheit drucken; b) eine Registerkorrektursteuereinheit, die im Stande ist, automatisch die Registerkorrektureinheit in Echtzeit basierend auf dem Registerkorrekturbetrag zu steuern, der durch die Registerdetektier- und -abschätzeinheit abgeleitet ist; c) eine Auffächerdetektier- und -abschätzeinheit, die im Stande ist, einen Auffächerkorrekturbetrag durch die Auffächerkorrektureinheit basierend auf einer Registermarkierung abzuschätzen und zu detektieren; und d) eine Auffächerkorrektursteuereinheit, die im Stande ist, automatisch die Auffächerkorrektureinheit in Echtzeit basierend auf dem Auffächerkorrekturbetrag zu steuern, der durch die Auffächerdetektier- und -abschätzeinheit abgeleitet ist, wobei die Registermarkierungen auf eine Vorderseite und eine Rückseite der Faserbahn gedruckt sind.By the EP 2 447 071 A1 For example, a side register correcting apparatus is known which has a register correcting unit capable of correcting register movement of a fiber web through each plural printing units and a fan correcting unit capable of correcting a width of the fiber web stretched in a width direction, the side register correcting device comprising: a) a register detecting and estimating unit capable of estimating and detecting a register correction amount by the register correcting unit based on at least two register marks printed on the fiber web through each of the printing units when plural printing units are in one traveling fiber web to print a correction by the register correction unit and the fan correction unit; b) a register correction control unit capable of automatically controlling the register correction unit in real time based on the register correction amount derived by the register detecting and estimating unit; c) a fan detection and estimation unit capable of estimating and detecting a fan correction amount by the fan correction unit based on a register flag; and d) a fan correction control unit capable of automatically controlling the fan correction unit in real time based on the fan correction amount derived by the fan detection and estimation unit, wherein the register marks are printed on a front side and a back side of the fiber web.

Durch die US 5 036 763 A ist eine konvertierbare Mehrfarben-Druckmaschine zum Schön- und Widerdruck, insbesondere von Banknoten, bekannt mit zwei im Wesentlichen gleich aufgebauten Hälften, die jede einen ersten Zylinder, einen gegen diesen angedrückten Bildübertragungszylinder, einen zweiten, als Gummizylinder ausgebildeten Zylinder, der zwischen einer gegen den ersten Zylinder gepressten Offsetdruckstellung und einer von diesem abgerückten Sammeldruckstellung verstellbar ist, mehrere mit diesem Gummizylinder in Berührung stehende konvertierbare, in der Offsetdruckstellung als Offsetplattenzylinder und in der Sammeldruckstellung als Farbselektionszylinder ausgebildete, von je einem Farbwerk einfärbbare Zylinder, einen dem Gummizylinder zugeordneten verstellbaren Sammeldruckplattenzylinder, der in der Offsetdruckstellung vom Gummizylinder in eine Ausserbetriebsstellung abrückbar ist und in der Sammeldruckstellung sowohl mit dem Gummizylinder als auch mit dem Bildübertragungszylinder zusammenwirkt, und in wenigstens einer der Maschinenhälften ein zusätzliches Druckwerk mit einem von einem eigenen Farbwerk eingefärbten Plattenzylinder aufweist, wobei die beiden ersten Zylinder jeder Maschinenhälfte als benachbart nebeneinanderliegende Druckzylinder fungieren, wobei der Druckzylinder und der Bildübertragungszylinder jeder Maschinenhälfte zwischen sich einen ersten Druckspalt bilden, dass in der Offsetdruckstellung die gegeneinander gepressten Druck- und Gummizylinder zwischen sich einen zweiten Druckspalt bilden, wobei das zu bedruckende Papier zunächst den einen Druckzylinder im einen Sinne teilweise umschlingt und nach Passieren des Spalts zwischen beiden Druckzylindern den anderen Druckzylinder im anderen Sinne teilweise umschlingt, wobei die Druckspalte in beiden Maschinenhälften unter Bedruckung zunächst der einen, dann der anderen Papierseite passiert werden, und wobei der Plattenzylinder des zusätzlichen Druckwerks den Bildübertragungszylinder einfärbt.By the US 5 036 763 A is a convertible multicolor printing machine for perfecting, in particular of banknotes, known with two substantially identically constructed halves, each a first cylinder, one against this pressed image transfer cylinder, a second cylinder designed as a rubber cylinder, which is adjustable between a compressed against the first cylinder offset printing position and a spaced from this collective pressure position, several standing in contact with this blanket cylinder convertible, formed in the offset printing position as offset plate cylinder and in the collective pressure position as a color selection cylinder , each of an inking unit einstärbbare cylinder, a rubber cylinder associated with the adjustable collective plate cylinder, which is zurückrückbar in the offset printing position from the blanket cylinder in an inoperative position and cooperates in the collective pressure position with both the blanket cylinder and the image transfer cylinder, and in at least one of the machine halves an additional printing unit having a plate cylinder colored by its own inking unit, the two first cylinders being adjacent to each machine half adjacent printing cylinder act, the pressure cylinder and the image transfer cylinder each machine half form a first nip between them, that form in the offset printing position, the pressed against each other printing and blanket cylinders between them a second nip, wherein the paper to be printed first, the one printing cylinder in one sense partially wraps around and after passing through the gap between the two cylinders partially wraps around the other pressure cylinder in the other sense, the printing gaps in both halves of the machine under pressure initially one, then the other paper side are passed, and wherein the plate cylinder of the additional printing unit inking the image transfer cylinder.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Prüfung einer Registerhaltigkeit von auf zwei gegenüberliegenden Seiten eines Bedruckstoffes zu druckenden Druckbildern zu schaffen.The invention has for its object to provide a method for checking a register of printing on two opposite sides of a printing material to be printed images.

Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruches 1 gelöst. Die abhängigen Ansprüche betreffen vorteilhafte Weiterbildungen und/oder Ausgestaltungen der gefundenen Lösung.The object is achieved by the features of claim 1. The dependent claims relate to advantageous developments and / or embodiments the solution found.

Die mit der Erfindung erzielbaren Vorteile bestehen darin, dass eine Prüfung der Registerhaltigkeit von auf zwei gegenüberliegenden Seiten eines Bedruckstoffes gedruckten Druckbildern ohne Zuhilfenahme einer druckbildfremden Referenz ermöglicht wird. Für gegenüberliegende Seiten des Bedruckstoffes vorgesehene Druckbilder werden unmittelbar und direkt durch eine Betrachtung derselben Seite des Bedruckstoffes bzw. durch eine gleichzeitige Erfassung dieser Druckbilder in derselben fotografischen Abbildung geprüft. Daher ist das vorgeschlagene Verfahren auch für Bedruckstoffe mit geringer Transparenz geeignet.The achievable with the present invention consist in that an examination of the register accuracy of printed on two opposite sides of a printing material images is made possible without the aid of a print image foreign reference. Printed images intended for opposite sides of the printing substrate are checked directly and directly by viewing the same side of the printing substrate or by simultaneously recording these printed images in the same photographic image. Therefore, the proposed method is also suitable for substrates with low transparency.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher beschrieben, wobei weitere Vorteile in Verbindung mit dem Ausführungsbeispiel erkennbar werden.An embodiment of the invention is illustrated in the drawing and will be described in more detail below, with further advantages in connection with the embodiment can be seen.

Es zeigen:

Fig. 1
ein Druckwerk einer Rotationsdruckmaschine ohne Bedruckstoff;
Fig. 2
das Druckwerk der Fig. 1 mit einem Bedruckstoff;
Fig. 3
eine die Erfindung verwendende Rotationsdruckmaschine.
Show it:
Fig. 1
a printing unit of a rotary printing press without printing material;
Fig. 2
the printing of the Fig. 1 with a printing material;
Fig. 3
a rotary printing press using the invention.

Fig. 1 und Fig. 2 zeigen beispielhaft jeweils schematisch und stark vereinfacht ein Druckwerk 01 einer z. B. im Wertdruck oder im Verpackungsdruck verwendeten Rotationsdruckmaschine, z. B. einer in einem Offsetdruckverfahren druckenden Rotationsdruckmaschine, wobei das Druckwerk 01 zwei im Druckprozess zusammenwirkende, d. h. gegeneinander angestellte Druckwerkszylinder 02; 03 aufweist. Das vorzugsweise von einem der Rotationsdruckmaschine zugeordneten, nicht dargestellten Leitstand aus fernbetätigte oder zumindest fernbetätigbare Druckwerk 01 weist für jeden der beiden zusammenwirkenden Druckwerkszylinder 02; 03 jeweils zumindest mindestens ein Farbwerk (in den Fig. 1 und 2 nicht dargestellt) und gegebenenfalls jeweils mindestens ein Feuchtwerk (in den Fig. 1 und 2 nicht dargestellt) auf. Wenn die Rotationsdruckmaschine als Offsetrotationsdruckmaschine ausgebildet ist, ist jedem der beiden zusammenwirkenden Druckwerkszylinder 02; 03, die dann jeweils als ein Übertragungszylinder bzw. als ein Gummituchzylinder ausgebildet sind, jeweils mindestens ein Formzylinder (in den Fig. 1 und 2 nicht dargestellt) zugeordnet. Für jeden der beiden zusammenwirkenden Druckwerkszylinder 02; 03 ist jeweils vorzugsweise auch eine Wascheinrichtung 04; 06 vorgesehen, mit welcher jeder der Druckwerkszylinder 02; 03 jeweils von Druckfarbe gereinigt werden kann. Jeder Druckwerkszylinder 02; 03 kann jeweils mindestens ein Druckbild auf einen Bedruckstoff 07 übertragen (Fig. 2), wobei in Umfangsrichtung eines jeden Druckwerkszylinders 02; 03 vorzugsweise jeweils mehrere Druckbilder hintereinander anordenbar sind. Ebenso können auch in Axialrichtung eines jeden Druckwerkszylinders 02; 03 jeweils mehrere Druckbilder nebeneinander angeordnet sein. Die jeweiligen Druckbilder können monochrom oder mehrfarbig ausgebildet sein. Die jeweilige Rotationsrichtung eines jeden Druckwerkszylinders 02; 03 ist in den Figuren jeweils durch einen Richtungspfeil angedeutet. Ebenso ist eine für den Transport des Bedruckstoffes 07 durch das Druckwerk 01 vorgesehene Transportrichtung T durch einen Richtungspfeil angedeutet (Fig. 2). In dem in der Fig. 2 dargestellten Druckwerk 01 wird z. B. im Fortdruck der Rotationsdruckmaschine die erste Seite des Bedruckstoffes 07, z. B. dessen Vorderseite mittels des ersten Druckwerkszylinders 02 bedruckt und die der ersten Seite gegenüberliegende zweite Seite des Bedruckstoffes 07, z. B. dessen Rückseite wird im Druckprozess mittels des mit dem ersten Druckwerkszylinder 02 zusammenwirkenden zweiten Druckwerkszylinders 03 bedruckt. Das Druckwerk 01 der Rotationsdruckmaschine ist somit dafür geeignet, gegenüberliegende Seiten des Bedruckstoffes 07 simultan im Schön- und Widerdruck ohne Wendung dieses Bedruckstoffes 07, d. h. in einem Simultandruckverfahren zu bedrucken. Fig. 1 and Fig. 2 show by way of example in each case schematically and greatly simplified a printing unit 01 a z. B. used in value printing or packaging printing rotary printing machine, z. B. a printing in an offset printing process rotary printing machine, wherein the printing unit 01 two cooperating in the printing process, ie against each other employed printing cylinder 02; 03 has. The preferably not assigned by one of the rotary printing press shown control station from remotely operated or at least remotely operable printing unit 01 has for each of the two cooperating printing cylinder 02; 03 in each case at least one inking unit (in the Fig. 1 and 2 not shown) and optionally in each case at least one dampening unit (in the Fig. 1 and 2 not shown). If the rotary printing machine is designed as an offset rotary printing press, each of the two cooperating printing cylinder 02; 03, which are then each formed as a transfer cylinder or as a blanket cylinder, in each case at least one forme cylinder (in the Fig. 1 and 2 not shown) assigned. For each of the two cooperating printing cylinder 02; 03 is preferably also a washing device 04; 06 provided, with which each of the printing cylinder 02; 03 each of ink can be cleaned. Each printing cylinder 02; 03 can transfer at least one print image to a substrate 07 ( Fig. 2 ), wherein in the circumferential direction of each printing cylinder 02; 03 each preferably several print images can be arranged one behind the other. Likewise, in the axial direction of each printing cylinder 02; 03 each have multiple print images next to each other. The respective print images can be monochrome or multicolored. The respective direction of rotation of each printing cylinder 02; 03 is indicated in the figures in each case by a directional arrow. Likewise, a transport direction T provided for the transport of the printing material 07 by the printing unit 01 is indicated by a directional arrow ( Fig. 2 ). In the in the Fig. 2 shown printing unit 01 is z. B. in the continuous printing of the rotary printing machine, the first page of the printing material 07, z. B. whose front printed by means of the first printing cylinder 02 and the first side opposite the second side of the printing substrate 07, z. B. whose back is printed in the printing process by means of cooperating with the first printing cylinder 02 second printing cylinder 03. The printing unit 01 of the rotary printing press is thus suitable for printing on opposite sides of the printing substrate 07 simultaneously in perfecting without turning this printing material 07, ie in a simultaneous printing process.

Um die Registerhaltigkeit von im Fortdruck der Rotationsdruckmaschine auf den beiden gegenüberliegenden Seiten des Bedruckstoffes 07 zu druckenden Druckbildern und damit die für den Druckprozess korrekte Einstellung der Rotationsdruckmaschine zu prüfen, wird ein Verfahren mit folgenden Verfahrensschritten vorgeschlagen:
Vorzugsweise während des Einrichtens der Rotationsdruckmaschine wird zunächst ein Druckbild von dem ersten Druckwerkszylinder 02 auf den zweiten Druckwerkszylinder 03 gedruckt, indem der mit mindestens einer Druckfarbe eingefärbte erste Druckwerkszylinder 02 in einem Berührungskontakt an den zweiten Druckwerkszylinder 03 angestellt wird, so dass während einer z. B. am Leitstand ausgelösten Rotation der gegeneinander angestellten Druckwerkszylinder 02; 03 ein von dem ersten Druckwerkszylinder 02 zu druckendes Druckbild direkt und unmittelbar auf die Mantelfläche des zweiten Druckwerkszylinders 03 übertragen wird. Danach wird der Bedruckstoff 07, z. B. ein einzelner Druckbogen oder eine Sequenz von mehreren Druckbogen oder eine Bedruckstoffbahn, durch den Walzenspalt der beiden gegeneinander angestellten Druckwerkszylinder 02; 03 geführt, so dass der Bedruckstoff 07 im Kontakt mit den beiden zusammenwirkenden Druckwerkszylindern 02; 03 dergestalt bedruckt wird, dass das auf den zweiten Druckwerkszylinder 03 gedruckte Druckbild gemeinsam mit einem gleichen oder einem anderen jeweils von dem zweiten Druckwerkszylinder 03 in einem Fortdruck der Rotationsdruckmaschine zu druckenden Druckbild auf dieselbe Seite des Bedruckstoffes 07 gedruckt wird. Anschließend werden diese beiden gemeinsam auf dieselbe Seite des Bedruckstoffes 07 gedruckten Druckbilder hinsichtlich ihrer Registerhaltigkeit geprüft und/oder auch vermessen.In order to check the register accuracy of printing images to be printed in the continuous printing of the rotary printing press on the two opposite sides of the printing substrate 07 and thus the correct setting of the rotary printing press for the printing process, a method is proposed with the following method steps:
Preferably, during setup of the rotary printing machine, a print image of the first printing cylinder 02 is first printed on the second printing cylinder 03 by the inked with at least one ink first printing cylinder 02 is made in a contact with the second printing cylinder 03, so that during a z. B. triggered at the control center rotation of the juxtaposed printing cylinder 02; 03 a printed image to be printed by the first printing cylinder 02 is transferred directly and directly to the lateral surface of the second printing cylinder 03. Thereafter, the substrate 07, z. B. a single sheet or a sequence of multiple sheets or a printing substrate, through the nip of the two mutually employed printing cylinder 02; 03 out, so that the substrate 07 in contact with the two cooperating printing cylinder 02; 03 is printed such that printed on the second printing unit cylinder 03 printed image is printed on the same side of the printing material 07 together with a same or another each printed by the second printing cylinder 03 in a continuous printing of the rotary printing machine print image. Subsequently, these two printed together on the same side of the printing substrate 07 printed images are checked for their registration and / or also measured.

Die z. B. außerhalb der Rotationsdruckmaschine insbesondere an einem Prüftisch ausgeführte Prüfung der Registerhaltigkeit der auf dieselbe Seite des Bedruckstoffes 07 gedruckten Druckbilder erfolgt z. B. dadurch, dass die im Fortdruck der Rotationsdruckmaschine auf den beiden gegenüberliegenden Seiten des Bedruckstoffes 07 zu druckenden Druckbilder hinsichtlich ihrer relativen Lage zueinander z. B. automatisiert oder durch eine Person jeweils z. B. unter Zuhilfenahme eines optischen Systems daraufhin geprüft werden, ob sie vorzugsweise unter Berücksichtigung zuvor festgelegter Toleranzen in einem vorgegebenen Verhältnis zueinander stehen. Dabei liegen die festgelegten Toleranzen i. d. R. im Bereich von deutlich weniger als 1 Millimeter. Das die relative Lage der im Fortdruck der Rotationsdruckmaschine beiderseits des Bedruckstoffes 07 zu druckenden, zur Prüfung ihrer Registerhaltigkeit aber gemeinsam auf dieselbe Seite des Bedruckstoffes 07 gedruckten Druckbilder betreffende Verhältnis besteht z. B. darin, dass diese Druckbilder möglichst deckungsgleich oder einander zu einer einzigen geometrischen Figur ergänzend oder z. B. in ihrer jeweiligen Lage voneinander getrennt in einem z. B. durch den Sollwert vorgegebenen festen Abstand zueinander angeordnet sind. Eine insbesondere über die zuvor festgelegten Toleranzen hinausgehende Abweichung von dem für dieses Verhältnis vorgegebenen Sollwert wirkt sich qualitätsmindernd aus. Eine festgestellte Abweichung kann auch z. B. mittels des optischen Systems vermessen werden, um aus dem Messwert mindestens eine Stellgröße zur Einstellung der Rotationsdruckmaschine zu ermitteln. Das optische System weist zumindest eine Erfassungseinrichtung z. B. in Form einer Kamera und i. d. R. eine Beleuchtungseinrichtung und eine insbesondere digitale Bildverarbeitungseinrichtung zur Auswertung der von der mindestens einen Erfassungseinrichtung aufgenommenen fotografischen Abbildung des betreffenden Druckbildes bzw. der betreffenden Druckbilder auf.The z. B. outside of the rotary printing machine, in particular on a test table running check the register accuracy of printed on the same page of the substrate 07 printed images z. B. in that the in the continuous printing of the rotary printing press on the two opposite sides of the printing substrate 07 to be printed images with respect to their relative position to each other z. B. automated or by a person each z. B. with the aid of an optical system then checked whether they are preferably taking into account previously defined tolerances in a predetermined ratio to each other. The specified tolerances are usually in the range of significantly less than 1 millimeter. The relative position of the printing press to be printed in the continuous printing of the rotary printing press on both sides of the printing substrate 07, but to test its register accuracy but jointly printed on the same side of the printing material 07 relationship exists z. B. in that these printed images as congruent or complementary to each other to a single geometric figure or z. B. separated in their respective position from each other in a z. B. are arranged by the setpoint predetermined fixed distance from each other. A deviation, in particular beyond the previously defined tolerances, from the setpoint value specified for this ratio has the effect of reducing the quality. A detected deviation can also z. B. by means of the optical system to determine from the measured value at least one manipulated variable for setting the rotary printing press. The optical system has at least one detection device z. B. in the form of a camera and usually a lighting device and a particular digital image processing device for evaluating the recorded by the at least one detection device photographic image of the relevant printed image or the relevant printed images.

Wenn die geprüfte Registerhaltigkeit der im Fortdruck der Rotationsdruckmaschine auf gegenüberliegende Seiten des Bedruckstoffes 07 zu druckenden, zur Prüfung ihrer Registerhaltigkeit aber gemeinsam auf dieselbe Seite des Bedruckstoffes 07 gedruckten Druckbilder als gut befunden wird, erfolgt vorzugsweise zumindest für den zweiten Druckwerkszylinder 03, auf den ein Druckbild vom ersten Druckwerkszylinder 02 übertragen wurde, insbesondere vor einem Start des Fortdrucks der Rotationsdruckmaschine zwecks Entfernung des auf ihn übertragenen Druckbildes ein Zylinderwaschen, indem die diesem zweiten Druckwerkszylinder 03 zugeordnete Wascheinrichtung 06 automatisch oder manuell z. B. vom Leitstand aus betätigt wird. Gegebenenfalls werden auch beide Druckwerkszylinder 02; 03 gewaschen, indem deren jeweilige Wascheinrichtung 04; 06 betätigt wird.If the tested register accuracy of the printing press to be printed on the opposite sides of the printing substrate 07 during continuous printing of the rotary printing press but jointly printed on the same side of the printing substrate 07 is found to be good, preferably at least for the second printing cylinder 03 to which a printed image was transferred from the first printing cylinder 02, in particular before a start of the continuous printing of the rotary printing machine for the purpose of removing the printed image transferred to it a cylinder washing by this second printing cylinder 03 associated Washing device 06 automatically or manually z. B. is operated from the control room. Optionally, both printing cylinder 02; 03 washed by their respective washing device 04; 06 is actuated.

Wenn die geprüfte Registerhaltigkeit der im Fortdruck der Rotationsdruckmaschine auf gegenüberliegende Seiten des Bedruckstoffes 07 zu druckenden, zur Prüfung ihrer Registerhaltigkeit aber gemeinsam auf dieselbe Seite des Bedruckstoffes 07 gedruckten Druckbilder noch nicht als ausreichend, d. h. noch nicht der geforderten Qualität entsprechend befunden wird, werden die vorstehend beschriebenen Verfahrensschritte jeweils nach einer geänderten, d. h. verbesserten Einstellung der Rotationsdruckmaschine vorzugsweise solange wiederholt, bis die Registerhaltigkeit als gut befunden wird. Die verbesserte Einstellung der Rotationsdruckmaschine erfolgt z. B. aufgrund der Ermittlung der mindestens einen Stellgröße zur Einstellung der Rotationsdruckmaschine, so wie sich diese Stellgröße aus dem Messwert für die festgestellte Abweichung des vorgegebenen Verhältnisses für die relative Lage von den im Fortdruck der Rotationsdruckmaschine auf gegenüberliegende Seiten des Bedruckstoffes 07 zu druckenden, zur Prüfung ihrer Registerhaltigkeit aber gemeinsam auf dieselbe Seite des Bedruckstoffes 07 gedruckten Druckbildern von dem betreffenden Sollwert ergeben hat. Es ist vorzugsweise vorgesehen, dass zumindest der zweite Druckwerkszylinder 03, auf den ein Druckbild vom ersten Druckwerkszylinder 02 übertragen wurde, nach jeder Prüfung der Registerhaltigkeit gewaschen wird.If the tested register accuracy of the printing presses to be printed on the opposite sides of the printing material 07 in the continuous printing of the rotary printing press but not jointly printed on the same side of the printing material 07 is not considered sufficient, d. H. has not yet been found to meet the required quality, the process steps described above are in each case after an amended, d. H. improved setting of the rotary printing press preferably repeated until the registration is found to be good. The improved setting of the rotary printing machine z. B. due to the determination of the at least one manipulated variable for setting the rotary printing press, as this manipulated variable from the measured value for the determined deviation of the predetermined ratio for the relative position of the imprinting the rotary press on opposite sides of the printing substrate 07 to be printed, for testing their registry but has resulted in common printed on the same side of the substrate 07 printed images of the target value. It is preferably provided that at least the second printing group cylinder 03, to which a printed image has been transferred from the first printing cylinder 02, is washed after each registration check.

Das in den Fig. 1 und 2 stark vereinfacht dargestellte Druckwerk 01 ist z. B. Bestandteil folgender anhand der Fig. 3 beispielhaft beschriebener vorzugsweise im Wertdruck verwendeter Rotationsdruckmaschine. Das Druckwerk 01 weist in zusammenwirkender Anordnung den ersten Druckwerkszylinder 02 und den zweiten Druckwerkszylinder 03 auf, wobei der erste Druckwerkszylinder 02 z. B. für den Schöndruck und der zweite Druckwerkszylinder 03 z. B. für den Widerdruck verwendet wird. In dieser Anordnung der Druckwerkszylinder 02; 03 kann ein durch den Walzenspalt zwischen dem ersten Druckwerkszylinder 02 und dem zweiten Druckwerkszylinder 03 geführter Bedruckstoff 07, der insbesondere als ein Druckbogen ausgebildet ist, simultan, also gleichzeitig beidseitig bedruckt werden. Die in der Fig. 3 beispielhaft dargestellte Rotationsdruckmaschine ist z. B. als eine Mehrfarben-Offsetrotationsdruckmaschine ausgebildet. Daher sind die beiden Druckwerkszylinder 02; 03 jeweils als ein Übertragungszylinder, insbesondere jeweils als ein Gummituchzylinder ausgebildet. In diesem beispielhaft dargestellten Druckwerk 01 sind sowohl an den z. B. für den Schöndruck verwendeten ersten Druckwerkszylinder 02 jeweils z. B. vier Formzylinder 11 bis 14 als auch an den z. B. für den Widerdruck zweiten Druckwerkszylinder 03 jeweils z. B. vier Formzylinder 16 bis 19 angestellt oder zumindest anstellbar. Die Formzylinder 11 bis 14; 16 bis 19 werden jeweils auch als Plattenzylinder bezeichnet. An jeden der Formzylinder 11 bis 14; 16 bis 19 ist jeweils zumindest ein Farbwerk 21 bis 24; 26 bis 29 angestellt oder zumindest anstellbar. Zudem kann in Verbindung mit jedem Farbwerk 21 bis 24; 26 bis 29 jeweils auch ein Feuchtwerk 31 bis 34; 37 bis 39 vorgesehen sein, welches in einem Nassoffsetdruckverfahren benötigt wird. Die schöndruckseitigen Farbwerke 21 bis 24 und gegebenenfalls auch die schöndruckseitigen Feuchtwerke 31 bis 34 sind z. B. in einem verfahrbaren Gestellwagen 61 angeordnet. Ebenso können die widerdruckseitigen Farbwerke 26 bis 29 und gegebenenfalls auch die widerdruckseitigen Feuchtwerke 37 bis 39 z. B. in einem verfahrbaren Gestellwagen 62 angeordnet sein, wobei beide Gestellwagen 61; 62 in jeweils entgegengesetzter Richtung auseinander fahrbar und in jeweils einander zugewandter Richtung aufeinander zufahrbar sind, wobei diese Gestellwagen 61; 62 an das ortsfest angeordnete Druckwerk 01 jeweils anstellbar oder davon abstellbar sind. Am Umfang der beiden Druckwerkszylinder 02; 03 sind hintereinander mehrere, z. B. jeweils drei Drucktücher angeordnet. Die Formzylinder 11 bis 14; 16 bis 19 weisen an ihrem jeweiligen Umfang jeweils z. B. nur eine einzige Druckform auf, wobei eine in Umfangsrichtung gerichtete Druckformlänge jeweils vorzugsweise mit einer in Umfangsrichtung gerichteten Drucktuchlänge korrespondiert. An den ersten Druckwerkszylinder 02 ist die insbesondere als eine Gummituch-Wascheinrichtung ausgebildete Wascheinrichtung 04 angestellt oder zumindest anstellbar. An den zweiten Druckwerkszylinder 03 ist die insbesondere als eine Gummituch-Wascheinrichtung ausgebildete Wascheinrichtung 06 angestellt oder zumindest anstellbar. Zudem ist vorzugsweise eine Inspektionseinheit 08 vorgesehen, wobei diese Inspektionseinheit 08 insbesondere als ein optisches System mit einer Erfassungseinrichtung in Form einer Kamera und einer Beleuchtungseinrichtung ausgebildet ist. Die Inspektionseinheit 08 wird z. B. auch zur Prüfung der Registerhaltigkeit von Druckbildern verwendet.That in the Fig. 1 and 2 greatly simplified illustrated printing unit 01 is z. B. Part of the following with reference to Fig. 3 exemplified preferably used in the value printing rotary printing press. The printing unit 01 has, in a cooperative arrangement, the first printing cylinder 02 and the second printing cylinder 03, wherein the first printing cylinder 02 z. B. for the Perfecting and the second printing cylinder 03 z. B. is used for the perfecting. In this arrangement, the printing cylinder 02; 03 can be a through the nip between the first Printing cylinder 02 and the second printing cylinder 03 guided substrate 07, which is designed in particular as a sheet, simultaneously, so be printed on both sides simultaneously. The in the Fig. 3 exemplified rotary printing machine is z. B. formed as a multi-color offset rotary printing machine. Therefore, the two printing cylinder 02; 03 each as a transfer cylinder, in particular each formed as a blanket cylinder. In this exemplified printing unit 01 both the z. B. used for the Perfecting first printing cylinder 02 each z. B. four forme cylinder 11 to 14 and to the z. B. for the perfecting second printing cylinder 03 each z. B. four forme cylinder 16 to 19 employed or at least employable. The form cylinder 11 to 14; 16 to 19 are each referred to as a plate cylinder. To each of the form cylinder 11 to 14; 16 to 19 are each at least one inking unit 21 to 24; 26 to 29 employed or at least employable. In addition, in connection with each inking unit 21 to 24; 26 to 29 each also a dampening unit 31 to 34; 37 to 39, which is needed in a wet offset printing process. The beautiful printing-side inking units 21 to 24 and possibly also the beautiful pressure side dampening units 31 to 34 are z. B. arranged in a movable frame carriage 61. Likewise, the rebate-side inking units 26 to 29 and, where appropriate, the offset-side dampening units 37 to 39 z. B. be arranged in a movable frame carriage 62, wherein both frame carriage 61; 62 are movable apart in each case in the opposite direction and in each direction facing each other zufahrbar, said rack carriage 61; 62 to the stationary arranged printing unit 01 each can be adjusted or turned off. At the periphery of the two printing cylinder 02; 03 are consecutively several, z. B. each arranged three blankets. The form cylinder 11 to 14; 16 to 19 have at their respective perimeter z. B. only a single printing plate, wherein a directed in the circumferential direction printing form length each preferably corresponds with a directed in the circumferential direction blanket length. At the first printing cylinder 02, in particular designed as a blanket washing device washing device 04 is employed or at least unemployable. At the second printing unit cylinder 03, in particular designed as a blanket washing device washing device 06 is employed or at least employable. In addition, an inspection unit 08 is preferably provided, wherein this inspection unit 08 is designed in particular as an optical system with a detection device in the form of a camera and a lighting device. The inspection unit 08 is z. B. also used to check the register validity of printed images.

Ein von einem Bogenanleger 41 bereitgestellter Druckbogen wird mittels einer z. B. als ein Transportband ausgebildeten ersten Fördereinrichtung 42 in Transportrichtung T einer Bogenanlage 43 zugeführt, wobei die Bogenanlage 43 den betreffenden Druckbogen in das Druckwerk 01 einführt. Das Druckwerk 01 übernimmt den betreffenden Druckbogen von der Bogenanlage 43 z. B. einer ersten Transfertrommel 44. In einer vorteilhaften Ausgestaltung der in der Fig. 3 beispielhaft dargestellten Rotationsdruckmaschine ist vorgesehen, dass die Schöndruckseite des betreffenden Druckbogens zunächst mit mindestens einer Druckfarbe, vorzugsweise mit mehreren, z. B. mit zwei Druckfarben bedruckt wird, die jeweils z. B. durch eine Bestrahlung mit ultraviolettem Licht (UV) getrocknet werden. Dazu ist im Zusammenwirken mit der ersten Transfertrommel 44 ein (Gegen-)Druckzylinder 46 vorgesehen, an welchen ein als Gummituchzylinder ausgebildeter Übertragungszylinder 47 angestellt oder zumindest anstellbar ist. An diesen Übertragungszylinder 47 sind z. B. ein oder mehrere jeweils als Plattenzylinder ausgebildete Formzylinder 48; 49 angestellt oder zumindest anstellbar. Diese Formzylinder 48; 49 werden jeweils von einem weiteren Farbwerk 51; 52 eingefärbt, wobei auch diese Farbwerke 51; 52 bei Bedarf wiederum jeweils mit einem Feuchtwerk 53; 54 zusammenwirken können. Selbstverständlich kann auch für den optional vorgesehenen Übertragungszylinder 47 eine insbesondere als eine Gummituch-Wascheinrichtung ausgebildete Wascheinrichtung 56 vorgesehen sein. Ein im Walzenspalt zwischen dem Druckzylinder 46 und dem Übertragungszylinder 47 z. B. schöndruckseitig mit mindestens einer UV-trocknenden Druckfarbe bedruckter Druckbogen wird vorzugsweise zunächst an mindestens einem UV-Trockner 57 vorbeigeführt, bevor dieser Druckbogen mittels einer zweiten Transfertrommel 58 an den zweiten Druckwerkszylinder 03 übergeben und in den Walzenspalt zwischen dem ersten Druckwerkszylinder 02 und dem zweiten Druckwerkszylinder 03 geführt wird. Nachdem ein Druckbogen den Walzenspalt zwischen dem ersten Druckwerkszylinder 02 und dem zweiten Druckwerkszylinder 03 durchlaufen hat, kann er schon inline, d. h. innerhalb der Rotationsdruckmaschine mittels der Inspektionseinheit 08 inspiziert und z. B. auf Registerhaltigkeit seiner Druckbilder hin überprüft werden, bevor er dann mittels einer dritten Transfertrommel 63 einer z. B. als ein Kettenförderer ausgebildeten zweiten Fördereinrichtung 64 übergeben wird. Die zweite Fördereinrichtung 64 fördert den Druckbogen vom Druckwerk 01 zu einer Auslage 66, wobei die Auslage 66 insbesondere mehrere, z. B. drei Auslagestapelfächer 67; 68; 69 aufweist.A provided by a sheet feeder 41 sheet is using a z. B. as a conveyor belt formed first conveyor 42 in the transport direction T of a sheet fed 43, wherein the sheet metal system 43 introduces the relevant sheet in the printing unit 01. The printing unit 01 accepts the relevant sheet from the sheet metal plant 43 z. B. a first transfer drum 44. In an advantageous embodiment of the in the Fig. 3 Rotary printing machine shown by way of example is provided that the straight printing page of the relevant sheet first with at least one ink, preferably with several, z. B. is printed with two inks, each z. B. by irradiation with ultraviolet light (UV) to be dried. For this purpose, a (counter) pressure cylinder 46 is provided in cooperation with the first transfer drum 44, to which a designed as a blanket cylinder transfer cylinder 47 is employed or at least employable. At this transfer cylinder 47 z. B. one or more each designed as a plate cylinder form cylinder 48; 49 employed or at least employable. These form cylinder 48; 49 are each of a further inking unit 51; Colored 52, whereby these inking units 51; 52 in turn, if necessary, in each case with a dampening unit 53; 54 can interact. Of course, a specially designed as a blanket washing device washing device 56 may also be provided for the optionally provided transfer cylinder 47. A in the nip between the impression cylinder 46 and the transfer cylinder 47 z. B. beautiful print side printed with at least one UV-drying ink Printing sheet is preferably initially passed past at least one UV dryer 57 before this sheet is transferred by means of a second transfer drum 58 to the second printing cylinder 03 and guided into the nip between the first printing couple cylinder 02 and the second printing cylinder 03. After a sheet has passed through the nip between the first printing cylinder 02 and the second printing cylinder 03, it can already be inline, ie inspected within the rotary printing machine by means of the inspection unit 08 and z. B. to register validity of his printed images are checked before he then by means of a third transfer drum 63 a z. B. passed as a chain conveyor second conveyor 64 is passed. The second conveyor 64 conveys the sheet from the printing unit 01 to a display 66, the display 66 in particular more, z. B. three delivery tray compartments 67; 68; 69 has.

Es ist bevorzugt vorgesehen, das vorgeschlagene Verfahren in einer beispielhaft gemäß Fig. 3 dargestellten Rotationsdruckmaschine auszuführen. Denn das vorgeschlagene Verfahren ermöglicht eine einfache Überprüfung der Registerhaltigkeit beidseitig simultan auf einen Bedruckstoff 07 gedruckter Druckbilder.It is preferably provided that the proposed method in an exemplary according to Fig. 3 Run illustrated rotary printing machine. Because the proposed method allows a simple check of the register on both sides simultaneously printed on a substrate 07 printed images.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

0101
Druckwerkprinting unit
0202
DruckwerkszylinderPrinting cylinders
0303
DruckwerkszylinderPrinting cylinders
0404
Wascheinrichtungwash
0505
--
0606
Wascheinrichtungwash
0707
Bedruckstoffsubstrate
0808
Inspektionseinheitinspection unit
0909
--
1010
--
1111
Formzylinderform cylinder
1212
Formzylinderform cylinder
1313
Formzylinderform cylinder
1414
Formzylinderform cylinder
1515
--
1616
Formzylinderform cylinder
1717
Formzylinderform cylinder
1818
Formzylinderform cylinder
1919
Formzylinderform cylinder
2020
--
2121
Farbwerkinking
2222
Farbwerkinking
2323
Farbwerkinking
2424
Farbwerkinking
2525
--
2626
Farbwerkinking
2727
Farbwerkinking
2828
Farbwerkinking
2929
Farbwerkinking
3030
--
3131
Feuchtwerkdampening
3232
Feuchtwerkdampening
3333
Feuchtwerkdampening
3434
Feuchtwerkdampening
3535
--
3636
--
3737
Feuchtwerkdampening
3838
Feuchtwerkdampening
3939
Feuchtwerkdampening
4040
--
4141
Bogenanlegersheet feeder
4242
FördereinrichtungConveyor
4343
Bogenanlagesheet feeder
4444
Transfertrommeltransfer drum
4545
--
4646
Druckzylinderpressure cylinder
4747
Übertragungszylindertransfer cylinder
4848
Formzylinderform cylinder
4949
Formzylinderform cylinder
5050
--
5151
Farbwerkinking
5252
Farbwerkinking
5353
Feuchtwerkdampening
5454
Feuchtwerkdampening
5555
--
5656
Wascheinrichtungwash
5757
UV-TrocknerUV dryer
5858
Transfertrommeltransfer drum
5959
--
6060
--
6161
Gestellwagenracks
6262
Gestellwagenracks
6363
Transfertrommeltransfer drum
6464
FördereinrichtungConveyor
6565
--
6666
Auslagedisplay
6767
AuslagestapelfachDelivery pile specialist
6868
AuslagestapelfachDelivery pile specialist
6969
AuslagestapelfachDelivery pile specialist
TT
Transportrichtungtransport direction

Claims (10)

  1. A method for checking the maintenance of register of printed images to be printed on two opposite sides of a printing material (07), in which the first side of the printing material (07) is printed in a rotary printing press by means of a first printing unit cylinder (02) and in which the second side of the printing material (07) opposite to the first side is printed in the printing process by means of a second printing unit cylinder (03) cooperating with the first printing unit cylinder (02), characterized in that a printed image from the first printing unit cylinder (02) is printed to the second printing unit cylinder (03), wherein afterwards the printing material (07) is printed in contact with the two cooperating printing unit cylinders (02; 03) by printing the printed image printed to the second printing unit cylinder (03) jointly with a same or a different printed image to be printed respectively in a continuous printing of the rotary printing press from the second printing unit cylinder (03) to the same side of the printing material (07), wherein these printed images printed jointly to the same side of the printing material (07) are subsequently checked with respect to the maintenance of register.
  2. The method according to claim 1, characterized in that it is executed during the setup of the rotary printing press and/or that it is used in security printing or in printing on packaging.
  3. The method according to claim 1 or 2, characterized in that a single printed sheet or a sequence of printed sheets or a printing material web is used as printing material (07).
  4. The method according to claim 1, 2 or 3, characterized in that a rotary printing press printing in an offset printing method is used.
  5. The method according to claim 1, 2, 3 or 4, characterized in that the checking of the maintenance of the register of the printed images to be printed in the continuous printing of the rotary printing press on the opposite sides of the printing material (07), however, for checking the maintenance of the register occurring jointly on the same side of the printing material (07) occurs due to the fact that the printed images printed on the same side of the printing material (07) are checked with respect to their relative position to each other as to whether they are in a predefined relation to each other.
  6. The method according to claim 5, characterized in that the relationship relating to the relative position of the printed images to be printed on both sides of the printing material (07) consists in the fact that these printed images are arranged congruently or complementing each other into a single geometric figure or separated from each other in their respective position at a predefined fixed distance to each other.
  7. The method according to claim 5 or 6, characterized in that in the case of a deviation of the predefined relationship from a set point value, the noticed deviation is measured and at least one control variable for setting the rotary printing press is determined from the measured value.
  8. The method according to claim 5, 6 or 7, characterized in that the checking of the maintenance of the register is executed outside of the rotary printing press on a checking table.
  9. The method according to claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that at least the second printing unit cylinder (03), to which a printed image from the first printing unit cylinder (02) was transferred, is washed prior to the continuous printing of the rotary printing press and/or after each checking of the maintenance of the register.
  10. The method according to claim 1, 2, 3, 4, 5, 6, 7, 8 or 9, characterized in that the checking of the maintenance of the register performed within the rotary printing press or outside of the rotary printing press on a checking table is respectively executed by means of an optical system (08), wherein the optical system (08) respectively has at least one detection device and an image-processing device for evaluating the respective image of the relevant printed image or of the relevant printed images detected by the detection device.
EP17710508.7A 2016-03-11 2017-03-07 Method for checking the maintenance of register of printed images to be printed on two opposite sides of a printing material Active EP3426492B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016204072.3A DE102016204072B4 (en) 2016-03-11 2016-03-11 Method for checking a register accuracy of printed images to be printed on two opposite sides of a printing substrate
PCT/EP2017/055317 WO2017153404A1 (en) 2016-03-11 2017-03-07 Method for checking the maintenance of register of printed images to be printed on two opposite sides of a printing material

Publications (2)

Publication Number Publication Date
EP3426492A1 EP3426492A1 (en) 2019-01-16
EP3426492B1 true EP3426492B1 (en) 2019-10-30

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Application Number Title Priority Date Filing Date
EP17710508.7A Active EP3426492B1 (en) 2016-03-11 2017-03-07 Method for checking the maintenance of register of printed images to be printed on two opposite sides of a printing material

Country Status (6)

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US (1) US10308012B2 (en)
EP (1) EP3426492B1 (en)
JP (1) JP6567200B2 (en)
CN (1) CN108778749B (en)
DE (1) DE102016204072B4 (en)
WO (1) WO2017153404A1 (en)

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CN117584641B (en) * 2024-01-19 2024-03-29 山东盈科杰数码科技有限公司 Control method and device for front and back overprinting precision of high-speed rotary ink-jet printer

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Also Published As

Publication number Publication date
JP2019507696A (en) 2019-03-22
JP6567200B2 (en) 2019-08-28
US20190084293A1 (en) 2019-03-21
WO2017153404A1 (en) 2017-09-14
CN108778749B (en) 2019-10-25
EP3426492A1 (en) 2019-01-16
DE102016204072B4 (en) 2018-05-03
CN108778749A (en) 2018-11-09
US10308012B2 (en) 2019-06-04
DE102016204072A1 (en) 2017-09-14

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