EP0749829A1 - Method for exact alignment of a printing image on a geometrically correct position in a printing machine - Google Patents

Method for exact alignment of a printing image on a geometrically correct position in a printing machine Download PDF

Info

Publication number
EP0749829A1
EP0749829A1 EP96201641A EP96201641A EP0749829A1 EP 0749829 A1 EP0749829 A1 EP 0749829A1 EP 96201641 A EP96201641 A EP 96201641A EP 96201641 A EP96201641 A EP 96201641A EP 0749829 A1 EP0749829 A1 EP 0749829A1
Authority
EP
European Patent Office
Prior art keywords
printing
pins
centering device
master
registration marks
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.)
Granted
Application number
EP96201641A
Other languages
German (de)
French (fr)
Other versions
EP0749829B1 (en
Inventor
Harald Dr. Rer. Nat. Ahrens
Rainer Ziefle
Rainer Tiebel
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Polygram Manufacturing & Distribution Centres GmbH
Polygram Manufacturing & Distr
Polygram Manufacturing & Distribution Centres GmbH
Polygram International Holding BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Polygram Manufacturing & Distribution Centres GmbH, Polygram Manufacturing & Distr, Polygram Manufacturing & Distribution Centres GmbH, Polygram International Holding BV filed Critical Polygram Manufacturing & Distribution Centres GmbH
Publication of EP0749829A1 publication Critical patent/EP0749829A1/en
Application granted granted Critical
Publication of EP0749829B1 publication Critical patent/EP0749829B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/34—Screens, Frames; Holders therefor
    • B41F15/36—Screens, Frames; Holders therefor flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/50—Screen printing machines for particular purposes
    • B41P2215/55—Screen printing machines for particular purposes for printing compact discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/36—Means for registering or alignment of print plates on print press structure

Definitions

  • the invention relates to a method for the exact alignment of a print image arranged on a printing film to a geometrically correct printing position of a printing machine for printing on substrates, e.g. of CD's, the printing film being provided with a hole system aligned with the center of the image and being fastened to a printing screen which has alignment holes aligned with the center of the image, which correspond to alignment pins of the printing machine aligned with the center of the support.
  • the print image to be printed on the CD's is delivered in the form of a print film.
  • This printing film must be attached to the printing screen so that the printed image to be printed lies exactly above the CD to be printed.
  • the frame of the printing screen is provided with so-called fitting bores, which correspond to the stationary dowel pins of the printing machine.
  • the fitting holes of the printing screen on the one hand and the dowel pins of the printing machine on the other hand are arranged and designed such that after the printing screen has been placed over its holes on the dowel pins, the center of the print image arranged on the printing screen lies exactly above the center of the CD of the printing machine to be printed.
  • the fitting holes of the printing screen are exactly aligned with the center of the image of the printed image and the alignment pins of the printing machine are exactly aligned with the center of the CD to be printed.
  • the printing film containing the printed image must be applied exactly to the center of the printing screen in order to avoid deviations. So far, the printing film has been centered by hand and visually inspected. Up to now, auxiliary foils have been used for this are provided with concentric circles of different diameters. The printing film containing the printed image is then aligned by hand so that the printed image comes to lie within one of these concentric auxiliary circles.
  • JP 3-268115 (A) has disclosed a printing device in which the parts to be printed can be adjusted using a camera arranged above the printing surface.
  • the object of the invention is to simplify the alignment of the printed image to a geometrically correct printing position of the printing press and to increase the accuracy of the alignment.
  • the printing film containing the printed image is initially provided with at least two registration marks and roughly aligned with the center of the printing screen and then fastened.
  • the fitting bores of the printing screen which were previously aligned with the diameter of the dowel pins arranged on the printing press, are now radially enlarged in diameter according to the invention.
  • the printing screen prepared in this way is then brought into an optical centering device, which is also provided with registration marks, e.g. on monitors, which are identical to the registration marks of the printing film.
  • This centering device also contains so-called master pens, which are designed identically to the alignment pins of the printing press.
  • master pens which are designed identically to the alignment pins of the printing press.
  • the centering elements provided with precisely fitting holes, e.g. Centering bushes, pushed on, which are then inserted into the expanded fitting holes of the pressure screen with play.
  • the insertion takes place in that the centering device with the master pins arranged on it and the centering bushes pushed on is lowered in the direction of the printing screen.
  • the print image arranged on the printing screen is exactly in the correct print position.
  • the centering bushes are fixed in the radially expanded fitting holes, e.g. with a quick-curing adhesive.
  • the adjustment of the master pens to the perforation system of the printing film and the exact fixing of the registration marks on the monitors is carried out in a special process with the aid of a master plate which can be placed on the centering device and which has positional matching holes on one edge with the master pens and which is provided at right angles to it on an adjacent edge with a perforation system which is identical in position to the perforation system of the printing film.
  • the master pins of the centering device are thus aligned precisely with the pins of the centering device and thus with the perforation system of the master plate or the printing film.
  • This provides a simple and reliable way to obtain an exact image of the registration marks on the monitors on the printing film.
  • the sieve frame is fixed on the adjustment table e.g. by laterally acting clamping elements and fixed stops in such a way that the registration marks of the printing film come to lie in the area below the cameras.
  • the bridge is held at both ends via vertical guides and is arranged so that it can be lowered. After using the adjustable table that can be moved in the XY direction Registration marks of the printing film with which the monitors have been brought into congruence, the bridge is lowered so that the centering elements engage in the enlarged fitting holes.
  • the printing press 10 On the printing press 10 according to FIG. 1 there is a CD 11 to be printed. Above the printing press 10 there is a printing screen 13 which can be lowered in the direction 12. According to FIG. 2, the printing screen 13 has a frame 13a and a printing film 14 according to FIG. 3 attached to the printing screen.
  • the printing film 14 contains the print image 15 to be printed on the CD 11. In the figures, the print film and the print image are enlarged, ie not drawn to scale.
  • the lower part of the pressure frame 13a has two radially enlarged fitting bores 16, in which fitting bushes 17 are fastened by an adhesive in a manner shown below.
  • the locating bushes 17 have bores 18 which correspond in registration with locating pins 19 on the printing press 10.
  • the fitting bushes 17 are arranged and fixed in the radially enlarged fitting bores 16 such that when the printing screen 13 is placed on the printing machine 10, the fitting pins 19 engage in the holes 18 so that the printed image 15 comes to lie exactly above the CD 11 to be printed . It is thereby achieved that the printed image 15 is transferred exactly centrally to the CD 11, the center of which is designated 11a.
  • the optical centering device contains a base plate 20 on which an adjustment table 21 is arranged so as to be displaceable in the X-Y direction.
  • the adjustment in the X-Y direction takes place in a manner not shown in more detail by actuation of knurled screws 22.
  • the bridge 25 is held at its ends via vertical guide rails 28 and is arranged so that it can be lowered.
  • the printing film 14 is provided with the printed image 15 with two registration marks 29, which are at a fixed, precisely defined distance from the center 15a of the Print image. Then the printing film 14 is fastened approximately centrally on the printing screen 13. The printing screen 13 with the roughly adjusted printing film 14 is then attached to the adjustment table 21 by means of clamping elements 23. Monitors 30 are assigned to the two cameras 26, on which the register marks 29 are used to mark position-identical register marks 31. By adjusting the adjustment table 21 in the XY direction, the registration marks 29 of the printing film 14 are then brought into register with the registration marks 31 of the monitors 30.
  • centering bushes 17 are then pushed with their bores 18 onto the master pins 27 and inserted into the radially widened fitting bores 16 of the pressure screen 13 by lowering the bridge 25. After the centered position has been reached in this way, the centering bushings 17 lying with play in the fitting bores 16 are fixed, for example, by a rapidly curing adhesive.
  • FIG. 6 shows a solid master plate 32, for example made of aluminum, which has two fitting holes 33 on the lower edge and a hole system 34 consisting of three holes on the adjacent edge.
  • the fitting holes 33 are used to hold the master pins 27 arranged on the bridge 25 with a precise fit.
  • the master plate 32 is placed on the adjusting table 21, three adjusting pins 35 arranged on the centering device on an adjustable bar engaging in the holes 34.
  • the bridge 25 is then lowered so that the master pins 27 engage in the fitting holes 33 with a precise fit.
  • the bar is locked with the adjusting pins 35, so that the master pins 27 are now in a fixed, immovable relationship to the adjusting pins 35 and the hole system 34.
  • the printing film 14 is placed on the master plate 32 such that the adjusting pins 35 engage in the perforation system 14a of the printing film 14.
  • the Hole systems 14a and 34 are designed identically to one another.
  • the locations 29a at which the registration marks 29 of the printing film 14 come to lie are designated by 29a.
  • the bridge 25 is lowered with the cameras 26 to such an extent that the registration marks 29 are detected and displayed on the monitors as registration marks 31.
  • the previous calibration process ensures that the master pins 27 lie exactly above the fitting holes 33.
  • the calibration process is ended and the master plate 32 is removed. The actual alignment of the printed image arranged on the printing film to the correct printing position can then begin.

Abstract

A CD Ä11Ü is aligned to be printed with information and images that are precisely located relative to the disc centre. The screen printing machine has the screen Ä13Ü within a frame. The printing foil Ä14Ü is located on the screen surface. The frame has dowel bushes Ä16Ü with holes that align with dowel pins Ä19Ü in the base. The print foil has two reference marks that relate with identical locating marks on the frame to ensure accurate alignment of the foil.

Description

Die Erfindung bezieht sich auf ein Verfahren zur exakten Ausrichtung eines auf einer Druckfolie angeordneten Druckbildes auf eine geometrisch richtige Druckposition einer Druckmaschine zum Bedrucken von Trägern, z.B. von CD's, wobei die Druckfolie mit einem auf die Bildmitte ausgerichteten Lochsystem versehen ist und auf einem Drucksieb befestigt wird, welches auf die Bildmitte ausgerichtete Paßbohrungen aufweist, die mit auf die Trägermitte ausgerichteten Paßstiften der Druckmaschine korrespondieren.The invention relates to a method for the exact alignment of a print image arranged on a printing film to a geometrically correct printing position of a printing machine for printing on substrates, e.g. of CD's, the printing film being provided with a hole system aligned with the center of the image and being fastened to a printing screen which has alignment holes aligned with the center of the image, which correspond to alignment pins of the printing machine aligned with the center of the support.

Ein eingangs genanntes Verfahren wird z.B. beim Bedrucken von CD's mit Hilfe einer Siebdruckmaschine verwendet. Das auf die CD's aufzudruckende Druckbild wird dabei in Form einer Druckfolie angeliefert. Diese Druckfolie muß für das Einbelichten auf dem Drucksieb so befestigt werden, daß beim Druckvorgang das aufzudruckende Druckbild exakt über der zu bedruckenden CD liegt. Dazu ist der Rahmen des Drucksiebes mit sogenannten Paßbohrungen versehen, die mit ortsfesten Paßstiften der Druckmaschine korrespondieren. Dabei sind die Paßbohrungen des Drucksiebes einerseits und die Paßstifte der Druckmaschine andererseits derart angeordnet und ausgebildet, daß nach dem Aufsetzen des Drucksiebes über seine Bohrungen auf die Paßstifte die auf dem Drucksieb angeordnete Mitte des Druckbildes genau über der Mitte der zu bedruckenden CD der Druckmaschine liegt. Dies bedeutet, daß die Paßbohrungen des Drucksiebes genau auf die Bildmitte des Druckbildes und die Paßstifte der Druckmaschine exakt auf die Mitte der zu bedruckenden CD ausgerichtet sind. Daraus folgt, daß die das Druckbild enthaltende Druckfolie exakt auf die Mitte des Drucksiebes aufgebracht werden muß, um Abweichungen zu vermeiden. Bisher wird die Druckfolie in Handarbeit und in Sichtkontrolle zentrisch ausgerichtet. Dazu werden bisher Hilfsfolien verwendet, die mit konzentrischen Kreisen unterschiedlichen Durchmessers versehen sind. Die das Druckbild enthaltende Druckfolie wird sodann von Hand so ausgerichtet, daß das Druckbild innerhalb eines dieser konzentrischen Hilfskreise zu liegen kommt. Diese Art der Ausrichtung des Druckbildes auf die geometrisch richtige Druckposition einer Druckmaschine ist sehr umständlich, zeitaufwendig und vielen Fällen auch ungenau, so daß beim Druckvorgang mehr oder weniger Ausschuß anfällt, da das Druckbild exzentrisch auf der CD angeordnet ist.One of the methods mentioned at the outset is used, for example, when printing CDs using a screen printing machine. The print image to be printed on the CD's is delivered in the form of a print film. This printing film must be attached to the printing screen so that the printed image to be printed lies exactly above the CD to be printed. For this purpose, the frame of the printing screen is provided with so-called fitting bores, which correspond to the stationary dowel pins of the printing machine. The fitting holes of the printing screen on the one hand and the dowel pins of the printing machine on the other hand are arranged and designed such that after the printing screen has been placed over its holes on the dowel pins, the center of the print image arranged on the printing screen lies exactly above the center of the CD of the printing machine to be printed. This means that the fitting holes of the printing screen are exactly aligned with the center of the image of the printed image and the alignment pins of the printing machine are exactly aligned with the center of the CD to be printed. It follows that the printing film containing the printed image must be applied exactly to the center of the printing screen in order to avoid deviations. So far, the printing film has been centered by hand and visually inspected. Up to now, auxiliary foils have been used for this are provided with concentric circles of different diameters. The printing film containing the printed image is then aligned by hand so that the printed image comes to lie within one of these concentric auxiliary circles. This type of alignment of the printed image on the geometrically correct printing position of a printing press is very cumbersome, time-consuming and in many cases also imprecise, so that more or less waste arises during the printing process, since the printed image is arranged eccentrically on the CD.

Durch die JP 3-268115 (A) ist eine Druckvorrichtung bekannt geworden, bei der mit Hilfe einer oberhalb der Druckfläche angeordneten Kamera eine Justierung der zu bedruckenden Teile vorgenommen werden kann.JP 3-268115 (A) has disclosed a printing device in which the parts to be printed can be adjusted using a camera arranged above the printing surface.

Der Erfindung liegt die Aufgabe zugrunde, das Ausrichten des Druckbildes auf eine geometrisch richtige Druckposition der Druckmaschine zu vereinfachen und die Genauigkeit der Ausrichtung zu vergrößern.The object of the invention is to simplify the alignment of the printed image to a geometrically correct printing position of the printing press and to increase the accuracy of the alignment.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst,

  • a) daß die Druckfolie mit mindestens zwei auf die Bildmitte ausgerichteten Passermarken versehen und etwa zentrich auf dem Drucksieb befestigt wird,
  • b) daß das Drucksieb verstellbar auf einer optischen Zentriereinrichtung befestigt wird, die mit den Paßstiften der Druckmaschine lageidentische Masterstifte aufweist,
  • c) daß die Passermarken der Druckfolie mit lageidentischen Passermarken der optischen Zentriereinrichtung in Deckung gebracht werden,
  • d) daß auf die Masterstifte Zentrierelemente paßgenau aufgeschoben werden und
  • e) daß die mit den Zentrierelementen versehenen Masterstifte mit Spiel in die radial vergrößerten Paßbohrungen des Drucksiebes eingeführt und in ihrer zentrierten Lage befestigt werden.
According to the invention, this object is achieved by
  • a) that the printing film is provided with at least two registration marks aligned with the center of the image and is attached approximately centrally to the printing screen,
  • b) that the printing screen is adjustably attached to an optical centering device which has master pins which are identical in position to the alignment pins of the printing press,
  • c) that the registration marks of the printing film are brought into register with position-identical registration marks of the optical centering device,
  • d) that centering elements are pushed onto the master pins and
  • e) that the master pins provided with the centering elements are inserted with play into the radially enlarged fitting bores of the pressure screen and fastened in their centered position.

Auf diese Weise ist es möglich, das auf der Druckfolie angeordnete Druckbild unter Vermeidung einer ungenauen und zeitaufwendigen Handausrichtung auf automatische Weise auf die geometrisch richtige Druckposition der Druckmaschine auszurichten. Dies ist dadurch möglich, daß die das Druckbild enthaltende Druckfolie zurächst mit mindestens zwei Passermarken versehen und grob auf die Mitte des Drucksiebes ausgerichtet und dann befestigt wird. Die Paßbohrungen des Drucksiebes, die bisher paßgenau auf den Durchmesser der auf der Druckmaschine angeordneten Paßstifte ausgerichtet waren, sind jetzt erfindungsgemäß radial in ihrem Durchmesser vergrößert ausgebildet. Das auf diese Weise vorbereitete Drucksieb wird sodann in eine optische Zentriereinrichtung gebracht, die ebenfalls mit Passermarken, z.B. auf Monitoren, versehen ist, die gegenüber den Passermarken der Druckfolie lageidentisch ausgebildet sind. Diese Zentriereinrichtung enthält ferner sogenannte Masterstifte, die mit den Paßstiften der Druckmaschine lageidentisch ausgebildet sind. Sobald die Passermarken der Druckfolie mit den Passermarken der optischen Zentriereinrichtung in Deckung gebracht worden sind, werden auf die an der Zentriereinrichtung angeordneten Masterstifte die mit paßgenauen Bohrungen versehenen Zentrierelemente, z.B. Zentrierbuchsen, aufgeschoben, die danach unter Spiel in die erweiterten Paßbohrungen des Drucksiebes eingeführt werden. Das Einführen geschieht dadurch, daß die Zentriereinrichtung mit den an ihr angeordneten Masterstiften und den aufgeschobenen Zentrierbuchsen in Richtung auf das Drucksieb abgesenkt wird. Nach diesem Vorgang ist das auf dem Drucksieb angeordnete Druckbild exakt in der genau richtigen Druckposition. Danach werden die Zentrierbuchsen in den radial erweiterten Paßbohrungen festgelegt, z.B. durch einen schnell aushärtenden Kleber. Mit dem Verfahren gemäß der Erfindung können die sonst üblichen Paßlochtoleranzen der Druckfolie und des Drucksiebes eliminiert werden.In this way, it is possible to automatically align the printed image arranged on the printing film to the geometrically correct printing position of the printing machine, avoiding inaccurate and time-consuming manual alignment. This is possible in that the printing film containing the printed image is initially provided with at least two registration marks and roughly aligned with the center of the printing screen and then fastened. The fitting bores of the printing screen, which were previously aligned with the diameter of the dowel pins arranged on the printing press, are now radially enlarged in diameter according to the invention. The printing screen prepared in this way is then brought into an optical centering device, which is also provided with registration marks, e.g. on monitors, which are identical to the registration marks of the printing film. This centering device also contains so-called master pens, which are designed identically to the alignment pins of the printing press. As soon as the registration marks of the printing film have been brought into register with the registration marks of the optical centering device, the centering elements provided with precisely fitting holes, e.g. Centering bushes, pushed on, which are then inserted into the expanded fitting holes of the pressure screen with play. The insertion takes place in that the centering device with the master pins arranged on it and the centering bushes pushed on is lowered in the direction of the printing screen. After this process, the print image arranged on the printing screen is exactly in the correct print position. Then the centering bushes are fixed in the radially expanded fitting holes, e.g. with a quick-curing adhesive. With the method according to the invention, the otherwise customary fitting hole tolerances of the printing film and the printing screen can be eliminated.

Vor Beginn des Verfahrens zur Ausrichtung des auf der Druckfolie angeordneten Druckbildes auf die geometerisch richtige Druckposition der Druckmaschine muß dafür gesorgt werden, daß zum einen die an der Zentriereinrichtung angeordneten Masterstifte ihre richtige Position einnehmen, so daß beim späteren Ausrichten die mit den Zentrierelementen versehenen Masterstifte exakt in die erweiterten Paßbohrungen des Drucksiebes eingeführt werden können. Zum anderen muß dafür gesorgt werden, daß den mit den Kameras verbundenen Monitoren die mit den Passermarken der Druckfolie lageidentischen Passermarken exakt eingeprägt werden.Before starting the process for aligning the print image arranged on the printing film to the geometerically correct printing position of the printing press, it must be ensured that, on the one hand, those arranged on the centering device Master pins take their correct position so that the master pins provided with the centering elements can be inserted exactly into the extended fitting holes of the pressure screen during later alignment. On the other hand, it must be ensured that the monitors connected to the cameras are precisely imprinted with the registration marks that are identical to the registration marks of the printing film.

In Ausgestaltung der Erfindung ist dafür vorgesehen, daß die Justierung der Masterstifte auf das Lochsystem der Druckfolie und die genaue Fixierung der Passermarken auf den Monitoren in besonderen Verfahren mit Hilfe einer auf die Zentriereinrichtung aufsetzbaren Masterplatte erfolgt, die an einer Kante mit den Masterstiften lageidentische Paßlöcher aufweist und die rechtwinklig dazu an einer benachbarten Kante mit einem Lochsystem versehen ist, welches lageidentisch ist mit dem Lochsystem der Druckfolie.In an embodiment of the invention it is provided that the adjustment of the master pens to the perforation system of the printing film and the exact fixing of the registration marks on the monitors is carried out in a special process with the aid of a master plate which can be placed on the centering device and which has positional matching holes on one edge with the master pens and which is provided at right angles to it on an adjacent edge with a perforation system which is identical in position to the perforation system of the printing film.

In Ausgestaltung der Erfindung erfolgt die Justierung der Masterstifte dadurch,

  • daß die Masterplatte über das Lochsystem auf korrespondierende, verstellbare Stifte der Zentriereinrichtung gesetzt wird,
  • daß die Masterstifte der Zentriereinrichtung paßgenau in die Paßlöcher der Masterplatte eingeführt werden und
  • daß danach die Stifte der Zentriereinrichtung arrtiert werden.
In an embodiment of the invention, the master pins are adjusted by
  • that the master plate is placed on corresponding, adjustable pins of the centering device via the perforation system,
  • that the master pins of the centering device are inserted with a precise fit into the fitting holes of the master plate and
  • that the pins of the centering device are then locked.

Damit sind die Masterstifte der Zentriereinrichtung exakt auf die Stifte der Zentriereinrichtung und damit auf das Lochsystem der Masterplatte bzw. der Druckfolie ausgerichtet.The master pins of the centering device are thus aligned precisely with the pins of the centering device and thus with the perforation system of the master plate or the printing film.

In Ausgestaltung der Erfindung erfolgt die exakte Fixierung der Passermarken auf den Monitoren dadurch,

  • daß nach dem Ausrichten der Masterstifte auf das Lochsystem der Masterplatte die Druckfolie über ihr Lochsystem auf die festgelegten Stifte der Zentriereinrichtung gelegt wird,
  • daß die im Bereich oberhalb der Passermarken an der Zentriereinrichtung angeordneten Kameras die Passermarken der Druckfolie erfassen und auf den Monitoren abbilden und
  • daß die Lage der auf den Monitoren abgebildeten Passermarken durch geeignete Mittel fixiert wird.
In an embodiment of the invention, the registration marks are precisely fixed on the monitors by
  • that after aligning the master pins on the perforation system of the master plate, the printing film is placed on the perforated system on the defined pins of the centering device,
  • that the cameras arranged in the area above the registration marks on the centering device record the registration marks of the printing film and display them on the monitors and
  • that the position of the registration marks shown on the monitors is fixed by suitable means.

Damit erhält man auf einfache und zuverlässige Weise ein genaues Abbild der auf der Druckfolie vorhandenen Passermarken auf den Monitoren.This provides a simple and reliable way to obtain an exact image of the registration marks on the monitors on the printing film.

Die optische Zentriereinrichtung zur Durchführung des erfindungsgemäßen Verfahrens ist dadurch gekennzeichnet,

  • a) daß der in X-Y-Richtung verschiebbare Verstelltisch auf einer Grundplatte der optischen Zentriereinrichtung angeordnet ist,
  • b) daß oberhalb des Verstelltisches eine in senkrechter Richtung verschiebbare Brücke zur Aufnahme und Halterung der Kameras und der Masterstifte vorgesehen ist und
  • c) daß die mit den Zentrierelementen versehenen Masterstifte durch eine Absenkung in senkrechter Richtung in die radial erweiterten Paßbohrungen einführbar sind.
The optical centering device for carrying out the method according to the invention is characterized in that
  • a) that the adjustment table, which is displaceable in the XY direction, is arranged on a base plate of the optical centering device,
  • b) that a vertically displaceable bridge for receiving and holding the cameras and the master pins is provided above the adjustment table and
  • c) that the master pins provided with the centering elements can be inserted by lowering them in the vertical direction into the radially enlarged fitting bores.

Die Festlegung des Siebrahmens auf dem Verstelltisch erfolgt z.B. durch seitlich angreifende Klemmelemente und Festanschläge derart, daß die Passermarken der Druckfolie im Bereich unterhalb der Kameras zu liegen kommen.The sieve frame is fixed on the adjustment table e.g. by laterally acting clamping elements and fixed stops in such a way that the registration marks of the printing film come to lie in the area below the cameras.

In Ausgestaltung der Erfindung ist vorgesehen, daß die Brücke an ihren beiden Enden über senkrechte Führungen gehalten und absenkbar gelagert angeordnet ist. Nachdem mit Hilfe des in X-Y-Richtung verschiebbaren Verstelltisches die Passermarken der Druckfolie mit denen der Monitore zur Deckung gebracht worden sind, wird die Brücke abgesenkt, so daß die Zentrierelemente in die erweiterten Paßbohrungen eingreifen.In an embodiment of the invention it is provided that the bridge is held at both ends via vertical guides and is arranged so that it can be lowered. After using the adjustable table that can be moved in the XY direction Registration marks of the printing film with which the monitors have been brought into congruence, the bridge is lowered so that the centering elements engage in the enlarged fitting holes.

In der Zeichnung ist in den Fig. 1 bis 6 ein Ausführungsbeispiel des Gegenstandes gemäß der Erfindung schematisch dargestellt.

  • Fig. 1 zeigt eine schematische Seitenansicht einer Druckmaschine mit einem oberhalb derselben angeordneten Drucksieb,
  • Fig. 2 zeigt das Drucksieb gemäß Fig. 1 in einer Draufsicht,
  • Fig. 3 zeigt eine ein Druckbild enthaltende, auf dem Drucksieb gemäß Fig. 2 befestigte Druckfolie,
  • Fig. 4 zeigt eine Seitenansicht einer optischen Zentriereinrichtung, und
  • Fig. 5 zeigt eine schematische Draufsicht gemäß Fig. 4, und
  • Fig. 6 zeigt eine Masterplatte zum Eichen von lageidentischen Zentrierstiften des Lochsystems der Druckfolie zu lageidentischen Masterstiften der Zentriereinrichtung.
In the drawing, an embodiment of the object according to the invention is shown schematically in FIGS. 1 to 6.
  • 1 shows a schematic side view of a printing press with a printing screen arranged above it,
  • 2 shows a top view of the printing screen according to FIG. 1,
  • 3 shows a printing film containing a printing image and fastened on the printing screen according to FIG. 2,
  • Fig. 4 shows a side view of an optical centering device, and
  • FIG. 5 shows a schematic top view according to FIG. 4 and
  • 6 shows a master plate for calibrating position-identical centering pins of the perforation system of the printing film to position-identical master pins of the centering device.

Auf der Druckmaschine 10 gemäß Fig. 1 liegt eine zu bedruckende CD 11. Oberhalb der Druckmaschine 10 ist ein in Richtung 12 absenkbares Drucksieb 13 angeordnet. Das Drucksieb 13 besitzt gemäß Fig. 2 einen Rahmen 13a und eine auf dem Drucksieb befestigte Druckfolie 14 gemäß Fig. 3. Die Druckfolie 14 enthält das auf die CD 11 zu druckende Druckbild 15. In den Figuren sind die Druckfolie und das Druckbild vergrößert, d.h. nicht maßstabsgetreu, dargestellt.On the printing press 10 according to FIG. 1 there is a CD 11 to be printed. Above the printing press 10 there is a printing screen 13 which can be lowered in the direction 12. According to FIG. 2, the printing screen 13 has a frame 13a and a printing film 14 according to FIG. 3 attached to the printing screen. The printing film 14 contains the print image 15 to be printed on the CD 11. In the figures, the print film and the print image are enlarged, ie not drawn to scale.

Der untere Teil des Druckrahmens 13a besitzt zwei radial vergrößerte Paßbohrungen 16, in denen auf weiter unten dargestellte Weise Paßbuchsen 17 durch einen Kleber befestigt sind. Die Paßbuchsen 17 besitzen Bohrungen 18, die paßgenau mit Paßstiften 19 auf der Druckmaschine 10 korrespondieren. Die Paßbuchsen 17 sind derart in den radial erweiterten Paßbohrungen 16 angeordnet und festgelegt, daß beim Aufsetzen des Drucksiebes 13 auf die Druckmaschine 10 die Paßstifte 19 paßgenau in die Bohrungen 18 eingreifen, so daß das Druckbild 15 haargenau oberhalb der zu bedruckenden CD 11 zu liegen kommt. Dadurch wird erreicht, daß das Druckbild 15 genau zentrisch auf die CD 11 übertragen wird, deren Mitte mit 11a bezeichnet ist.The lower part of the pressure frame 13a has two radially enlarged fitting bores 16, in which fitting bushes 17 are fastened by an adhesive in a manner shown below. The locating bushes 17 have bores 18 which correspond in registration with locating pins 19 on the printing press 10. The fitting bushes 17 are arranged and fixed in the radially enlarged fitting bores 16 such that when the printing screen 13 is placed on the printing machine 10, the fitting pins 19 engage in the holes 18 so that the printed image 15 comes to lie exactly above the CD 11 to be printed . It is thereby achieved that the printed image 15 is transferred exactly centrally to the CD 11, the center of which is designated 11a.

Gemäß Fig. 4 und 5 ist eine optische Zentriereinrichtung dargestellt, mit deren Hilfe die Bohrungen 18 exakt an die geometrisch richtige Position gebracht werden können. Die optische Zentriereinrichtung gemäß Fig. 4 und 5 enthält eine Grundplatte 20, auf der ein Verstelltisch 21 in X-Y-Richtung verschiebbar angeordnet ist. Die Verstellung in X-Y-Richtung erfolgt auf nicht näher dargestellte Weise über Betätigung von Rändelschrauben 22. Auf dem Verstelltisch 21 ist das Drucksieb 13 mittels Klemmelementen 23 befestigt. Oberhalb des Verstelltisches 21 ist eine in senkrechter Richtung 24 verstellbare Brücke 25 vorgesehen, an der als optische Abtastenrichtungen zwei Kameras 26 und zwei mit den Paßstiften 19 der Druckmaschine 10 lageidentische Masterstifte 27 angeordnet sind. Die Brücke 25 ist an ihren Enden über senkrechte Führungsschienen 28 gehalten und absenkbar gelagert angeordnet.4 and 5, an optical centering device is shown, with the help of which the holes 18 can be brought exactly to the geometrically correct position. The optical centering device according to FIGS. 4 and 5 contains a base plate 20 on which an adjustment table 21 is arranged so as to be displaceable in the X-Y direction. The adjustment in the X-Y direction takes place in a manner not shown in more detail by actuation of knurled screws 22. Above the adjustment table 21 there is a bridge 25 which can be adjusted in the vertical direction 24 and on which two cameras 26 and two master pins 27 which are identical in position with the alignment pins 19 of the printing press 10 are arranged as optical scanning directions. The bridge 25 is held at its ends via vertical guide rails 28 and is arranged so that it can be lowered.

Die Ausrichtung des auf der Druckfolie 14 angeordneten Druckbildes 15 auf die geometrisch richtige Druckposition der Druckmaschine 10 erfolgt auf nachstehend beschriebene Weise:The alignment of the printed image 15 arranged on the printing film 14 to the geometrically correct printing position of the printing press 10 takes place in the manner described below:

Zunächst wird die Druckfolie 14 mit dem Druckbild 15 mit zwei Passermarken 29 versehen, die in einem festen, genau definierten Abstand zum Mittelpunkt 15a des Druckbildes stehen. Danach wird die Druckfolie 14 auf dem Drucksieb 13 in etwa zentrisch befestigt. Das Drucksieb 13 mit der grob justierten Druckfolie 14 wird sodann auf dem Verstelltisch 21 mittels Klemmelementen 23 befestigt. Den beiden Kameras 26 sind Monitore 30 zugeordnet, auf denen mit den Passermarken 29 lageidentische Passermarken 31 markiert sind. Durch Verstellen des Verstelltisches 21 in X-Y-Richtung werden sodann die Passermarken 29 der Druckfolie 14 mit den Passermarken 31 der Monitore 30 in Deckung gebracht. Danach werden die Zentrierbuchsen 17 mit ihren Bohrungen 18 auf die Masterstifte 27 geschoben und durch Absenken der Brücke 25 in die radial erweiterten Paßbohrungen 16 des Drucksiebes 13 eingeführt. Nachdem so die zentrierte Lage erreicht wurde, werden die mit Spiel in den Paßbohrungen 16 liegenden Zentrierbuchsen 17 z.B. durch einen schnell aushärtenden Kleber festgelegt.First, the printing film 14 is provided with the printed image 15 with two registration marks 29, which are at a fixed, precisely defined distance from the center 15a of the Print image. Then the printing film 14 is fastened approximately centrally on the printing screen 13. The printing screen 13 with the roughly adjusted printing film 14 is then attached to the adjustment table 21 by means of clamping elements 23. Monitors 30 are assigned to the two cameras 26, on which the register marks 29 are used to mark position-identical register marks 31. By adjusting the adjustment table 21 in the XY direction, the registration marks 29 of the printing film 14 are then brought into register with the registration marks 31 of the monitors 30. The centering bushes 17 are then pushed with their bores 18 onto the master pins 27 and inserted into the radially widened fitting bores 16 of the pressure screen 13 by lowering the bridge 25. After the centered position has been reached in this way, the centering bushings 17 lying with play in the fitting bores 16 are fixed, for example, by a rapidly curing adhesive.

Auf diese Weise ist eine zuverlässige Zentrierung ermöglicht worden, so daß beim Aufsetzen des Drucksiebes 13 auf die Druckmaschine 10 die Paßstifte 19 in die Bohrungen 18 der Zentrierbuchsen eingreifen und somit eine genaue zentrische Lage des Druckbildes 15 im Hinblick auf die zu bedruckende CD 11 erreicht ist.In this way, reliable centering has been made possible, so that when the printing screen 13 is placed on the printing machine 10, the dowel pins 19 engage in the bores 18 of the centering bushings and thus an exact central position of the printed image 15 with respect to the CD 11 to be printed is achieved .

Fig. 6 zeigt eine, z.B. aus Aluminium gefertigte massive Masterplatte 32, die an der unteren Kante zwei Paßlöcher 33 und an der benachbarten Kante ein aus drei Löchern bestehendes Lochsystem 34 aufweist. Die Paßlöcher 33 dienen zur paßgenauen Aufnahme der an der Brücke 25 angeordneten Masterstifte 27. Zur Eichung wird die Masterplatte 32 auf den Verstelltisch 21 gelegt, wobei drei auf der Zentriereinrichtung an einer verstellbaren Leiste angeordnete Justierstifte 35 in die Löcher 34 eingreifen. Danach wird die Brücke 25 abgesenkt, so daß die Masterstifte 27 paßgenau in die Paßlöcher 33 eingreifen. Danach wird die Leiste mit den Justierstiften 35 arretiert, so daß nunmehr die Masterstifte 27 in einem festen, unverrückbaren Verhältnis zu den Justierstiften 35 bzw. zu dem Lochsystem 34 stehen. Jetzt wird die Druckfolie 14 so auf die Masterplatte 32 gelegt, daß die Justierstifte 35 in das Lochsystem 14a der Druckfolie 14 eingreifen. Die Lochsysteme 14a und 34 sind lageidentisch zueinander ausgebildet. Dabei sind mit 29a die Stellen bezeichnet, an denen die Passermarken 29 der Druckfolie 14 zu liegen kommen. Nunmehr wird die Brücke 25 mit den Kameras 26 so weit abgesenkt, daß die Passermarken 29 erfaßt und auf den Monitoren als Passermarken 31 abgebildet werden. Durch den vorherigen Eichvorgang ist gewährleistet, daß die Masterstifte 27 genau oberhalb der Paßlöcher 33 liegen. Sobald die auf den Monitoren 30 abgebildeten Passermarken 31 markiert bzw. fixiert sind, ist der Eichvorgang beendet, und die Masterplatte 32 wird entfernt. Danach kann das eigentliche Ausrichten des auf der Druckfolie angeordneten Druckbildes auf die richtige Druckposition beginnen.6 shows a solid master plate 32, for example made of aluminum, which has two fitting holes 33 on the lower edge and a hole system 34 consisting of three holes on the adjacent edge. The fitting holes 33 are used to hold the master pins 27 arranged on the bridge 25 with a precise fit. For calibration, the master plate 32 is placed on the adjusting table 21, three adjusting pins 35 arranged on the centering device on an adjustable bar engaging in the holes 34. The bridge 25 is then lowered so that the master pins 27 engage in the fitting holes 33 with a precise fit. Then the bar is locked with the adjusting pins 35, so that the master pins 27 are now in a fixed, immovable relationship to the adjusting pins 35 and the hole system 34. Now the printing film 14 is placed on the master plate 32 such that the adjusting pins 35 engage in the perforation system 14a of the printing film 14. The Hole systems 14a and 34 are designed identically to one another. The locations 29a at which the registration marks 29 of the printing film 14 come to lie are designated by 29a. Now the bridge 25 is lowered with the cameras 26 to such an extent that the registration marks 29 are detected and displayed on the monitors as registration marks 31. The previous calibration process ensures that the master pins 27 lie exactly above the fitting holes 33. As soon as the registration marks 31 shown on the monitors 30 are marked or fixed, the calibration process is ended and the master plate 32 is removed. The actual alignment of the printed image arranged on the printing film to the correct printing position can then begin.

Claims (10)

Verfahren zur exakten Ausrichtung eines auf einer Druckfolie (14) angeordneten Druckbildes (15) auf eine geometrisch richtige Druckposition einer Druckmaschine (10) zum Bedrucken von Trägern (11), z.B. von CD's, wobei die Druckfolie (14) mit einem auf die Bildmitte (15a) ausgerichteten Lochsystem (14a) versehen ist und auf einem Drucksieb (13) befestigt wird, welches auf die Bildmitte (15a) ausgerichtete Paßbohrungen aufweist, die mit auf die Trägermitte (11a) ausgerichteten Paßstiften (19) der Druckmaschine (10) korrespondieren, dadurch gekennzeichnet, a) daß die Druckfolie (14) mit mindestens zwei auf die Bildmitte (15a) ausgerichteten Passermarken (29) versehen und etwa zentrisch auf dem Drucksieb (13) befestigt wird, b) daß das Drucksieb (13) verstellbar auf einer optischen Zentriereinrichtung befestigt wird, die mit den Paßstiften (19) der Druckmaschine (10) lageidentische Masterstifte (27) aufweist, c) daß die Passermarken (29) der Druckfolie (14) mit lageidentischen Passermarken (31) der optischen Zentriereinrichtung in Deckung gebracht werden, d) daß auf die Masterstifte (27) Zentrierelemente (17) paßgenau aufgeschoben werden und e) daß die mit den Zentrierelemente (17) versehenen Masterstifte (27) mit Spiel in die radial vergrößerten Paßbohrungen (16) des Drucksiebes (13) eingeführt und in ihrer zentrierten Lage befestigt werden. Method for the exact alignment of a printed image (15) arranged on a printing film (14) to a geometrically correct printing position of a printing machine (10) for printing on carriers (11), for example CDs, the printing film (14) being directed towards the center of the image ( 15a) aligned hole system (14a) and is attached to a printing screen (13) which has alignment holes aligned with the center of the image (15a), which correspond to alignment pins (19) of the printing press (10) aligned with the center of the support (11a), characterized by a) that the printing film (14) is provided with at least two registration marks (29) aligned with the center of the image (15a) and fastened approximately centrally on the printing screen (13), b) that the printing screen (13) is adjustably fastened on an optical centering device which has master pins (27) which are identical in position with the dowel pins (19) of the printing press (10), c) that the registration marks (29) of the printing film (14) are brought into register with position-identical registration marks (31) of the optical centering device, d) that centering elements (17) are pushed onto the master pins (27) with a precise fit and e) that the master pins (27) provided with the centering elements (17) are inserted with play into the radially enlarged fitting bores (16) of the pressure screen (13) and fastened in their centered position. Verfahren nach Anspruch 1, dadurch gekennzeichnet, a) daß das Drucksieb (13) mit der Druckfolie (14) etwa zentrisch auf einem in X-Y-Richtung verstellbaren Verstelltisch (21) der optischen Zentriereinrichtung befestigt wird, b) daß die Passsermarken (29) der Druckfolie (14) von zwei oberhalb des Verstelltisches (21) im Bereich der Passermarken (29) angeordneten Kameras (26) ausgelesen und auf angeschlossenen Monitoren (30) angezeigt werden und c) daß die auf den Monitoren (30) erscheinenden Passermarken (29) der Druckfolie (14) durch Verschieben des Verstelltisches (21) mit den den Monitoren (30) fest eingeprägten, lageidentischen Passermarken (31) der Zentriereinrichtung in Deckung gebracht werden. A method according to claim 1, characterized in a) that the printing screen (13) with the printing film (14) is fastened approximately centrally on an adjustment table (21) of the optical centering device which is adjustable in the XY direction, b) that the registration marks (29) of the printing film (14) are read by two cameras (26) arranged above the adjusting table (21) in the region of the registration marks (29) and displayed on connected monitors (30) and c) that the registration marks (29) appearing on the monitors (30) of the printing film (14) are made to coincide by moving the adjustment table (21) with the position marks (31) of the centering device which are firmly stamped in the monitors (30). Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Zentriereinrichtung nach dem In-Deckung-Bringen der Passermarken (29, 31) so weit in Richtung auf das Drucksieb (13) abgesenkt wird, bis die an der Zentriereinrichtung angeordneten Masterstifte (27) mit den aufgeschobenen Zentrierelementen (17) in die radial erweiterten Paßbohrungen (16) des Drucksiebes (13) eingreifen.Method according to Claim 1 or 2, characterized in that after the registration marks (29, 31) have been brought into coincidence, the centering device is lowered in the direction of the printing screen (13) until the master pins (27) arranged on the centering device engage with the pushed-on centering elements (17) into the radially widened fitting bores (16) of the pressure screen (13). Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Zentrierelemente (17) durch einen schnell aushärtenden Kleber, z.B. durch einen Zweikomponentenkleber oder durch Schrauben, Klemmen, Schweißen (Laser) oder dergl., in den erweiterten Paßbohrungen (16) befestigt werden.A method according to claim 3, characterized in that the centering elements (17) are fastened in the expanded fitting bores (16) by means of a fast-curing adhesive, for example by means of a two-component adhesive or by means of screws, clamps, welding (laser) or the like. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Justierung der Masterstifte (27) auf das Lochsystem (14a) der Druckfolie (14) und die genaue Fixierung der Passermarken (31) auf den Monitoren (30) in besonderen Verfahren mit Hilfe einer auf die Zentriereinrichtung aufsetzbaren Masterplatte (32) erfolgt, die an einer Kante mit den Masterstiften (27) lageidentische Paßlöcher (33) aufweist und die rechtwinklig dazu an einer benachbarten Kante mit einem Lochsystem (34) versehen ist, welches lageidentisch ist mit dem Lochsystem (14a) der Druckfolie (14).Method according to one of claims 1 to 4, characterized in that the adjustment of the master pins (27) to the perforation system (14a) of the printing film (14) and the exact fixing of the registration marks (31) on the monitors (30) in special processes A master plate (32) can be placed on the centering device, which has position-identical fitting holes (33) on one edge with the master pins (27) and at right angles thereto on an adjacent edge with a Hole system (34) is provided, which is identical in position to the hole system (14a) of the printing film (14). Verfahren nach Anspruch 5, dadurch gekennzeichnet, - daß die Masterplatte (32) über das Lochsystem (34) auf korrespondierende, verstellbarte Justierstifte (35) der Zentriereinrichtung gesetzt wird, - daß die Masterstifte (27) der Zentriereinrichtung paßgenau in die Paßlöcher (33) der Masterplatte (32) eingeführt werden und - daß danach die Justierstifte (35) arretiert werden. A method according to claim 5, characterized in - That the master plate (32) on the hole system (34) is placed on corresponding, adjustable adjusting pins (35) of the centering device, - That the master pins (27) of the centering device are inserted into the fitting holes (33) of the master plate (32) and - That the adjusting pins (35) are then locked. Verfahren nach Anspruch 5 oder 6, dadurch gekennzeichnet. - daß nach dem Ausrichten der Masterstifte (27) auf das Lochsystem (34) der Masterplatte (32) die Druckfolie (14) über ihr Lochsystem (14a) auf die festgelegten Justierstifte (35) der Zentriereinrichtung gelegt wird, - daß die im Bereich oberhalb der Passermarken (29) an der Zentriereinrichtung angeordneten Kameras (26) die Passermarken (29) der Druckfolie (14) erfassen und auf den Monitoren (30) darstellen und - daß die Lage der auf den Monitoren (30) abgebildeten Passermarken (31) durch geeignete Mittel fixiert bzw. markiert wird. A method according to claim 5 or 6, characterized . - That after aligning the master pins (27) on the hole system (34) of the master plate (32), the printing film (14) is placed over its hole system (14a) on the fixed adjusting pins (35) of the centering device, - That the cameras (26) arranged in the area above the registration marks (29) on the centering device detect the registration marks (29) of the printing film (14) and display them on the monitors (30) and - That the position of the registration marks (31) shown on the monitors (30) is fixed or marked by suitable means. Optische Zentriereinrichtung zur Durchführung eines Verfahrens einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, a) daß der in X-Y-Richtung verstellbare Verstelltisch (21) auf einer Grundplatte (20) der optischen Zentriereinrichtung angeordnet ist, b) daß oberhalb des Verstelltisches (21) eine in senkrechter Richtung (24) verschiebbare Brücke (25) zur Aufnahme und Halterung der Kameras (26) und der Masterstifte (27) vorgesehen ist und c) daß die mit den Zentrierelementen (17) versehenen Masterstifte (27) durch eine Absenkung in senkrechter Richtung (24) in die radial erweiterten Paßbohrungen (16) einführbar sind. Optical centering device for carrying out a method according to one of claims 1 to 7, characterized in that a) that the adjusting table (21) adjustable in the XY direction is arranged on a base plate (20) of the optical centering device, b) that above the adjustment table (21) a in the vertical direction (24) movable bridge (25) for receiving and holding the cameras (26) and the master pins (27) is provided and c) that the master pins (27) provided with the centering elements (17) can be inserted into the radially enlarged fitting bores (16) by lowering them in the vertical direction (24). Zentriereinrichtung nach Anspruch 8, dadurch gekennzeichnet, daß als Zentrierelemente Zentrierbuchsen (17), Fixierplatten oder dergl. vorgesehen sind.Centering device according to claim 8, characterized in that centering bushes (17), fixing plates or the like are provided as centering elements. Zentriereinrichtung nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß die Brücke (25) an ihren Enden über senkrechte Führungsschienen (28) gehalten und absenkbar gelagert angeordnet ist.Centering device according to claim 8 or 9, characterized in that the bridge (25) is held at its ends via vertical guide rails (28) and is arranged such that it can be lowered.
EP96201641A 1995-06-22 1996-06-12 Method for exact alignment of a printing image on a geometrically correct position in a printing machine Expired - Lifetime EP0749829B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19522676A DE19522676A1 (en) 1995-06-22 1995-06-22 Process for the exact alignment of a print image to a geometrically correct print position of a printing press
DE19522676 1995-06-22

Publications (2)

Publication Number Publication Date
EP0749829A1 true EP0749829A1 (en) 1996-12-27
EP0749829B1 EP0749829B1 (en) 1998-12-09

Family

ID=7764984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96201641A Expired - Lifetime EP0749829B1 (en) 1995-06-22 1996-06-12 Method for exact alignment of a printing image on a geometrically correct position in a printing machine

Country Status (6)

Country Link
US (1) US5699742A (en)
EP (1) EP0749829B1 (en)
JP (1) JPH09109366A (en)
CN (1) CN1076667C (en)
AT (1) ATE174264T1 (en)
DE (2) DE19522676A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893254A2 (en) * 1997-07-22 1999-01-27 E.I. Du Pont De Nemours And Company Method and apparatus for registration mounting printing plates
CN103252987A (en) * 2011-01-05 2013-08-21 广东隆兴包装实业有限公司 Device for displacing printing pressing force and eliminating tolerance clearance of curved-surface printing machine

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5927208A (en) * 1997-12-31 1999-07-27 Primera Technology, Inc. CD printer centering adjustment
JP3525374B2 (en) * 1998-01-26 2004-05-10 リョービ株式会社 Oblique image adjustment device for plate cylinder
US6205364B1 (en) 1999-02-02 2001-03-20 Creo Ltd. Method and apparatus for registration control during processing of a workpiece particularly during producing images on substrates in preparing printed circuit boards
US6276274B1 (en) 1999-05-28 2001-08-21 M&R Printing Equipment, Inc. Platen for a printing machine
US6338297B1 (en) * 2000-05-26 2002-01-15 Industrial Technology Research Institute Precise and rapid positioning mechanism for stencil printing
US6493064B2 (en) 2001-02-28 2002-12-10 Creo Il, Ltd. Method and apparatus for registration control in production by imaging
US6593066B2 (en) 2001-02-28 2003-07-15 Creo Il. Ltd. Method and apparatus for printing patterns on substrates
US7018674B2 (en) * 2001-03-02 2006-03-28 Omron, Corporation Manufacturing methods and apparatuses of an optical device and a reflection plate provided with a resin thin film having a micro-asperity pattern
US6883425B2 (en) * 2002-09-13 2005-04-26 Duke W. Goss Screen printing device
JP3693050B2 (en) * 2002-09-24 2005-09-07 セイコーエプソン株式会社 Print position adjustment in the print control device
DE102005001417B4 (en) * 2004-01-29 2009-06-25 Heidelberger Druckmaschinen Ag Projection screen-dependent display / operating device
CN100430693C (en) * 2004-03-17 2008-11-05 东捷科技股份有限公司 Sheet material positioning method through double location mark in combination with image taking by photographic arrangement
CN1928893B (en) * 2005-09-08 2010-04-28 东莞市凯格精密机械有限公司 Optical correction system for full-automatic visual printing-machine and constitution method
US20080236413A1 (en) * 2007-03-30 2008-10-02 Castleberry Jeffrey G Media carrier
JP5301859B2 (en) * 2007-05-31 2013-09-25 株式会社小森コーポレーション Rotary processing machine plate and mounting method thereof
US8136446B2 (en) * 2007-05-31 2012-03-20 Komori Corporation Plate for rotary processing machine and method of mounting of the same
US8203131B2 (en) * 2009-09-21 2012-06-19 Eastman Kodak Company Limiting plate shifting within a plate pallet
EP2380738B1 (en) * 2010-04-22 2014-05-28 Manz AG Printing stencil and method for setting the relative position of a printed pattern and a substrate
US20170217155A1 (en) * 2014-07-30 2017-08-03 Omet S.R.L. Printing machines with manual pre-registering systems
CN108248204B (en) * 2018-01-26 2019-06-07 江西合力泰科技有限公司 A kind of screen printing device and its screen printing method
CN110103568B (en) * 2019-06-19 2021-03-16 赫日光电（苏州）有限公司 Manufacturing method of laser imaging screen printing plate with stepped opening

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005651A (en) * 1972-04-25 1977-02-01 Societe Honeywell Bull (Societe Anonyme) Apparatus for orienting patterns provided on masks for serigraphy
JPS59115849A (en) * 1982-12-23 1984-07-04 Matsushita Electric Ind Co Ltd Apparatus for determining position of screen printing plate
EP0137569A2 (en) * 1983-10-06 1985-04-17 Alcatel N.V. Screen printing device
US4653369A (en) * 1984-07-09 1987-03-31 Menasha Corporation Flexographic printing plate mounting method and apparatus
JPS63207646A (en) * 1987-02-25 1988-08-29 Tdk Corp Plate registering method in screen printing machine

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1010269A (en) * 1963-05-17 1965-11-17 Gunter Zehnpfennig Improvements in or relating to printing apparatus
US3634009A (en) * 1969-10-08 1972-01-11 Bendix Corp Method and pinning devices for accurately registering art masters in a vacuum frame unit and a photocomposition unit
US3696738A (en) * 1971-02-03 1972-10-10 Joseph E Podgor Inc Silk screen stencil apparatus and method
SE440204B (en) * 1979-04-23 1985-07-22 Svecia Silkscreen Maskiner Ab SET AND DEVICE TO ADJUST A PRESSURE TO A MATERIAL
US4463673A (en) * 1981-09-08 1984-08-07 Michael Moore Method and apparatus for registration of planar members and the like through the employment of an intermediate alignment sheet
DK171290B1 (en) * 1987-02-27 1996-08-26 Du Pont Apparatus for mounting a flexible cliche on a format cylinder for a printing machine
JP2717707B2 (en) * 1989-07-14 1998-02-25 株式会社村田製作所 Screen printing method, printing plate manufacturing method and apparatus therefor
US5132911A (en) * 1989-12-27 1992-07-21 Leader Engineering Fabrication, Inc. Apparatus for mounting and proofing printing plates
JP2914511B2 (en) * 1990-03-19 1999-07-05 松下電器産業株式会社 Position correction method
US5136948A (en) * 1990-10-31 1992-08-11 Kabushiki Kaisha Shinkawa Marking method and apparatus
GB9104705D0 (en) * 1991-03-06 1991-04-17 Lowe John M Vision system
US5226366A (en) * 1992-02-11 1993-07-13 Screen Masters, Inc. Method and apparatus for aligning screens used for application of ink patterns to a substrate
US5284189A (en) * 1992-03-16 1994-02-08 Printron, Inc. Conductive ink packaging for printed circuit board screen printing operations
US5429045A (en) * 1992-11-12 1995-07-04 Karlyn; William M. Means for registering a compact disc for the silk-screen printing thereof
DE4335351C2 (en) * 1993-10-16 2003-04-30 Heidelberger Druckmasch Ag Method and device for compensating register deviations in an offset rotary printing machine
DE4338664C2 (en) * 1993-11-12 1995-09-14 Roland Man Druckmasch Method and device for controlling an automated printing plate changing process in printing machines

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005651A (en) * 1972-04-25 1977-02-01 Societe Honeywell Bull (Societe Anonyme) Apparatus for orienting patterns provided on masks for serigraphy
JPS59115849A (en) * 1982-12-23 1984-07-04 Matsushita Electric Ind Co Ltd Apparatus for determining position of screen printing plate
EP0137569A2 (en) * 1983-10-06 1985-04-17 Alcatel N.V. Screen printing device
US4653369A (en) * 1984-07-09 1987-03-31 Menasha Corporation Flexographic printing plate mounting method and apparatus
JPS63207646A (en) * 1987-02-25 1988-08-29 Tdk Corp Plate registering method in screen printing machine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 12, no. 487 (M - 778) 20 December 1988 (1988-12-20) *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 238 (M - 335) 31 October 1984 (1984-10-31) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0893254A2 (en) * 1997-07-22 1999-01-27 E.I. Du Pont De Nemours And Company Method and apparatus for registration mounting printing plates
EP0893254A3 (en) * 1997-07-22 1999-06-16 E.I. Du Pont De Nemours And Company Method and apparatus for registration mounting printing plates
CN103252987A (en) * 2011-01-05 2013-08-21 广东隆兴包装实业有限公司 Device for displacing printing pressing force and eliminating tolerance clearance of curved-surface printing machine
CN103252987B (en) * 2011-01-05 2016-12-28 广东隆兴包装实业有限公司 Displacement printing thrust and the elimination tolerance clearance device of curved surface printing machine

Also Published As

Publication number Publication date
DE19522676A1 (en) 1997-01-02
DE59600940D1 (en) 1999-01-21
US5699742A (en) 1997-12-23
CN1145853A (en) 1997-03-26
CN1076667C (en) 2001-12-26
ATE174264T1 (en) 1998-12-15
EP0749829B1 (en) 1998-12-09
JPH09109366A (en) 1997-04-28

Similar Documents

Publication Publication Date Title
EP0749829B1 (en) Method for exact alignment of a printing image on a geometrically correct position in a printing machine
DE2653707C3 (en) Device for precise visual-manual setup and for holding a plate-shaped workpiece with a light-sensitive layer in relation to one or two templates
EP1564804B1 (en) An appartus and a method for bonding wafers
DE4233455A1 (en) ALIGNMENT METHOD AND ALIGNMENT DEVICE FOR SCREEN PRINTING
EP0280919A2 (en) Method and apparatus for alligning a substrate for printed circuits in relation to a printing device of an engine for working printed circuit boards
DE4429565A1 (en) Device for drilling holes
DE102011006929A1 (en) Method and device for printing at least one printed material
DE3623891A1 (en) ARRANGEMENT FOR EXACTLY MUTUAL ALIGNMENT OF A MASK AND A SEMICONDUCTOR DISC IN A LITHOGRAPHIC DEVICE AND METHOD FOR THEIR OPERATION
DE3142794A1 (en) Screen printing method and device
DE2421509C3 (en) Method and apparatus for aligning a sequence of masks with respect to a substrate
DE102008054814B4 (en) Device for detecting the position of a printing plate
EP1260304A1 (en) Workpiece holder
EP1137970B1 (en) Method and device for aligning two photo masks with each other and an unexposed printed circuit board blank, and for subsequent simultaneous exposure in the production of double-sided printed circuit boards
EP3636437A1 (en) Method for attaching a printing plate on a cylinder, device for applying a printing plate on a cylinder, method for producing a printing plate, printing plate for use in a flexographic printing method and device for trimming the edges of a printing plate
DE3417223C2 (en) Method and device for precisely fitting holes in films during the production of a printed circuit on a drilled raw board
DE102004022239B4 (en) Machining device for aligning and punching printing plates for offset printing machines
DE4221482C2 (en) Method for checking the position of a printed image on a printing form
DE3340178C1 (en) Device for pressing on printed circuit boards to be tested in a printed circuit board test device and method for adjusting the associated light mark projectors
DE19539453A1 (en) Matching system for aligning printing plates for offset printing machine
DE2351220C3 (en) Method and device for the production of assemblies for multicolor printing
DE2622355A1 (en) Spindles head array setter - numerically positions line of sight and target matches for accurate spindle location
DE10144876B4 (en) Exposure mask device and method for aligning a plurality of substrates on an exposure mask
DE19919263A1 (en) Processing device to prepare printing plates for offset-printing machine; has optical sensors to measure marks on printing plate and alignment devices to align plate with marks by sensor control
EP0357961A2 (en) Method and apparatus for boring holes into a printing platen
DE10203048C2 (en) Method and device for assigning register deviations in a printing press

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT DE FR GB IT

17P Request for examination filed

Effective date: 19970627

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19980119

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19981209

REF Corresponds to:

Ref document number: 174264

Country of ref document: AT

Date of ref document: 19981215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59600940

Country of ref document: DE

Date of ref document: 19990121

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990308

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Owner name: PHILIPS PATENTVERWALTUNG GMBH

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990612

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20010625

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010629

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010821

Year of fee payment: 6

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020612

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030228

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST