EP0007451B1 - Register system for correctly adjusting a flexible printing plate - Google Patents

Register system for correctly adjusting a flexible printing plate Download PDF

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Publication number
EP0007451B1
EP0007451B1 EP79102147A EP79102147A EP0007451B1 EP 0007451 B1 EP0007451 B1 EP 0007451B1 EP 79102147 A EP79102147 A EP 79102147A EP 79102147 A EP79102147 A EP 79102147A EP 0007451 B1 EP0007451 B1 EP 0007451B1
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EP
European Patent Office
Prior art keywords
register
holes
faces
printing plate
registration system
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.)
Expired
Application number
EP79102147A
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German (de)
French (fr)
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EP0007451A1 (en
Inventor
Willi Jeschke
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.)
Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT79102147T priority Critical patent/ATE195T1/en
Publication of EP0007451A1 publication Critical patent/EP0007451A1/en
Application granted granted Critical
Publication of EP0007451B1 publication Critical patent/EP0007451B1/en
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    • 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
    • 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 register system for registering a flexible printing plate on the plate cylinder of a rotary printing machine with at least two registration holes provided in the printing plate and register marks associated therewith in the plate cylinder.
  • the plate is aligned indirectly on the cylinder, i.e. first means are provided for aligning the plate in the tensioning rails and, in addition, second means for aligning the tensioning rails on the cylinder.
  • the second group avoids this detour.
  • the plate is aligned directly with the cylinder body.
  • the present invention is to be assigned to this.
  • DE-PS 830 343 describes a method for fitting clamping plates in which, after the printing plate has been copied, coarse perforations are punched in the area so that the register crosses can be made to coincide with cross-shaped registration marks provided on the plate cylinder .
  • This method has proven itself quite well over the past few years, since it is a direct and relatively fast method for aligning a printing plate, in which plate deformations by the printing plate clamping rails have no adverse effect on the adjustment system.
  • this device has the disadvantage that the two coarse perforations are not part of a register system and the alignment takes place exclusively according to the registration marks copied onto the plate.
  • a corresponding disadvantage of this device in practice is that there is no possibility of correction in the case of a disc copied obliquely. Should e.g. one side of the plate is corrected against the other side and if the plate already touches the stops, then at best the plate tension on the corresponding side can first be released, e.g. to get a parallel print start line. Following this operation, an additional circumferential register adjustment of the entire plate cylinder is required. A corresponding facility is therefore essential.
  • the present invention has for its object to provide an easy-to-use register system, which inevitably guarantees the accuracy already achieved in the manufacture of the printing plate, even when used in the machine, and which enables precise alignment of a printing plate in the shortest possible time without Damage and warping of register punchings possible.
  • This object is achieved according to the invention with a register system of the type mentioned at the outset in that the registration marks are designed as similar surfaces which are at a maximum at the level of the printing plate surface and are smaller compared to the registration punchings and which contrast with the area surrounding them and are visible through the registration punchings .
  • the clamping, tensioning and adjusting of the printing plates remains without an adverse influence on the punching of the register system and the printing plates can be brought into a fit position quickly, even with repeated use, regardless of deformations and damage in the leading edge clamping area, so that an accurate register is obtained
  • Multi-color printing practically always eliminates the need to readjust the printing plates, although the system permits readjustment.
  • the punched holes can also be used as an adjustment aid when copying the printing plates.
  • the area surrounding the smaller areas is formed by contrasting shadow gaps in a further development of the inventive concept.
  • the shadow gaps visible through the punched punchings have a uniform width of a few tenths of a millimeter.
  • the fitting punchings and the surfaces similar to them are circular.
  • the circle as a perfectly symmetrical figure offers an optimal possibility for alignment.
  • Another embodiment of the invention consists in the fact that the die-cuts and the surfaces similar to them are polygonal are formed, since straight shadow gaps can also be used to achieve precise optical alignment.
  • An expedient embodiment of the invention is characterized in that the end faces directed against the pressure plate of register bolts are provided as similar surfaces and are fastened in the plate cylinder.
  • a structurally so simple arrangement and a solution that is favorable in terms of production technology also makes it possible to retrofit existing plate cylinders with the register system.
  • the similar surfaces serving for the adjustment of the printing plate can easily be exchanged and replaced if they are dirty or worn.
  • adjustable holding pieces 4 are fastened with an exact spacing and axially parallel to each other.
  • An intermediate support 6, which is height-adjustable by means of set screws 5, is screwed onto each holding piece 4.
  • the intermediate carrier 6 is provided with a through hole 7 which serves to receive a register bolt 8.
  • the register bolt 8 is provided at its end facing a pressure plate 9 projecting into the cylinder channel 1 with a fixed plug-in sleeve 10, which is provided on the end face with a circular recess 11 and is flush with the end face 12 of the register bolt 8.
  • the end face 12 of the register bolt 8 and the plug-in sleeve 10 fastened thereon are ground flat together and polished to a similar finish to the printing plate surface.
  • the base area of the circular recess 11 surrounding the register bolt 8 is designed with high contrast to the end face 12 of the register bolt 8 enclosed by it and to the circular ring surface of the plug-in sleeve 10 and the surface of the pressure plate 9, which e.g. can be done by matting.
  • the circular cutout 11 is preferably colored black and thus forms a strong, visually recognizable contrast with the aforementioned surfaces.
  • the pressure plate 9 protruding into the cylinder channel 1 is by means of clamping screws 15 schematically shown in FIG. is known from DE-PS 23 10 228, clamped in its clamping area 19.
  • the printing plate 9 has already been provided at the start of printing with two circular fitting punchings 14, the diameter of which is a few tenths of a millimeter larger than that of the end faces 12, during manufacture or before the plate copy by means of a register punch in the area of the register bolts 8 the register bolt 8. Due to the darker design of the circular recesses 11 compared to their surroundings, the areas visible from above the pressure plate 9, which lie between the punched holes 14 and the register bolt 8, form clearly perceptible, high-contrast shadow gaps 16.
  • the pressure plate is clamped in a known manner by means of the clamping screws 15 in the clamping rails IV .
  • the printer uses the two axially parallel, circular die-cuts 14 on the pressure plate 9 to face the end faces 12 located on the register bolts 8 align them.
  • the printer Before the alignment, the printer is presented with an image, as shown in FIG. 3.
  • the two fitting punchings 14 of the pressure plate 9 are offset eccentrically from the end faces 12 of the register bolts 8 which are similar to this. This is particularly clearly perceived by the eccentric offset of the shadow gaps 16 surrounding the end faces 12 relative to the associated fitting punchings 14.
  • the printing plate leading edge held by the printing plate clamping rails is now adjusted and adjusted until a concentric correspondence between the two fitting punchings 14 of the printing plate 9 and the two end faces 12 of the register bolts 8 is established. (See Fig. 4).
  • a warping or upsetting of the leading edge of the printing plate due to its clamping remains completely without influence on the fitting punchings 14 of the register system used, so that the printing plates 9 provided with this and already aligned are easily used several times, i.e. can be repeatedly tensioned and freshly adjusted without losing the accuracy of the register system already achieved during manufacture.
  • this register system can be used alone or as a supplement to existing coarser fitting systems due to its accuracy mentioned above.
  • a third register pin 8 in the same structural arrangement can additionally be provided in the center, as shown in FIG. 5, on the side of the cylinder channel 1 facing the print end. Since different printing lengths can also result in the circumferential direction due to different dressing strengths, for this reason it is also not possible to use individual circular fitting punchings 14 according to those at the start of printing. Instead, the rear pressure plate area must be provided with an elongated hole 20, the lateral edges of which in the aligned state of the pressure plate 9 must have the same distance from the end face 12 of the rear register bolt 8 (FIG. 5). Essential to the invention is, however, an additional register bolt 8 located at the end of the print.
  • the register bolts 8 are each provided on their end facing the pressure plate 9 with a circular projection 21 which is designed with a slightly smaller diameter than the associated circular fitting punch 14 of the pressure plate 9.
  • the shadow gaps 16 In this embodiment, the part of the circular ring surfaces of the register bolts 8 which surrounds the circular projections 21 and which is visible through the circular fitting punchings 14 of the pressure plate.
  • a second exemplary embodiment of the register system shown in FIG. 7 has, as shadow gaps in the front of the register bolts 8, annular grooves 22, the inside diameter of which is slightly smaller, preferably a few tenths of a millimeter, than that of the associated fitting punchings 14 of the pressure plate 9.
  • the ring grooves 22 are preferably black designed.
  • the shadow gaps 16 result from the ring groove regions which can be seen from above the pressure plate 9 and lie between the fitting punchings and the inner diameter of the ring grooves 22.
  • the register bolts 8 of a third exemplary embodiment of the register system are provided on the end face with blind holes 23 of slightly smaller diameter than that of the fitting punchings 14 of the pressure plate 9.
  • a separate contrasting of individual surfaces is not absolutely necessary, but is useful for increasing the contrast effect, since the contrast of the surface relevant for the alignment of the printing plate 9 results from the blind hole base 24, which is darker than its surroundings, and which depends on the depth of the blind hole holes 23 can be lighter or darker ( Figure 8).
  • the annular grooves 22 are embedded directly in the surface of the plate cylinder 2 without the interposition of register bolts 8.
  • similar surfaces serving the pressure plate 9 act from the annular grooves 22.
  • the shadow gaps 16 are formed by the areas of the high-contrast colored ring grooves 22 which are visible from above the pressure plate 9 and which lie between the circular fitting punchings 14 and the inner diameter of the ring grooves 22.
  • the similar surfaces used for plate adjustment can also be polygonal instead of circular.
  • the fitting punchings 14 of the pressure plate 9 and the similar smaller end faces 12 of the register bolts 8 are triangular, preferably as equilateral triangles.
  • the end faces 12 are located on the end triangular projections 25 of the register bolts 8.
  • the areas of the offset register bolts 8 lying between the fitting punchings 14 and the projections 25 form the shadow gaps 16 seen from above the pressure plate 9.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)

Description

Die Erfindung betrifft ein Registersystem zum passerhaltigen Ausrichten einer biegsamen Druckplatte auf dem Plattenzylinder einer Rotationsdruckmaschine mit mindestens zwei in der Druckplatte vorgesehenen Paßstanzungen und diesen zugeordneten Paßmarken im Plattenzylinder.The invention relates to a register system for registering a flexible printing plate on the plate cylinder of a rotary printing machine with at least two registration holes provided in the printing plate and register marks associated therewith in the plate cylinder.

Im Prinzip gibt es zwei wesentliche Gruppen von Registersystemen:In principle there are two main groups of register systems:

Bei der einen wird die Platte indirekt auf dem Zylinder ausgerichtet, d.h., daß erste Mittel vorgesehen sind zum Ausrichten der Platte in den Spannschienen und zusätzlich zweite Mittel zum Ausrichten der Spannschienen auf dem Zylinder.In one, the plate is aligned indirectly on the cylinder, i.e. first means are provided for aligning the plate in the tensioning rails and, in addition, second means for aligning the tensioning rails on the cylinder.

Die zweite Gruppe vermeidet diesen Umweg. Es erfolgt eine direkte Ausrichtung der Platte gegenüber dem Zylinderkörper. Zu dieser ist die vorliegende Erfindung zuzuordnen.The second group avoids this detour. The plate is aligned directly with the cylinder body. The present invention is to be assigned to this.

Die DE-PS 830 343 beschreibt ein Verfahren zum paßgerechten Einspannen von Druckplatten, bei dem nach der Kopie der Druckplatte im Bereich auf dieser aufkopierter Paßkreuze grobe Lochungen eingestanzt werden, damit die Paßkreuze mit auf dem Plattenzylinder vorgesehenen, ebenfalls kreuzförmigen Paßmarkierungen in Deckung gebracht werden können. Dieses Verfahren hat sich im Laufe der vergangenen Jahre an sich recht gut bewährt, da es eine direkte und relativ schnelle Methode zum Ausjustieren einer Druckplatte darstellt, bei der Plattendeformationen durch die Druckplattenspannschienen keinen nachteiligen Einfluß auf das Justiersystem haben. Jedoch weist diese Einrichtung den Nachteil auf, daß die beiden groben Lochungen nicht Bestandteile eines Registersystems sind und die Ausrichtung ausschließlich nach den auf die Platte kopierten Paßkreuzen erfolgt.DE-PS 830 343 describes a method for fitting clamping plates in which, after the printing plate has been copied, coarse perforations are punched in the area so that the register crosses can be made to coincide with cross-shaped registration marks provided on the plate cylinder . This method has proven itself quite well over the past few years, since it is a direct and relatively fast method for aligning a printing plate, in which plate deformations by the printing plate clamping rails have no adverse effect on the adjustment system. However, this device has the disadvantage that the two coarse perforations are not part of a register system and the alignment takes place exclusively according to the registration marks copied onto the plate.

Aus der DE-PS 20 10 899 ist eine Vorrichtung der eingangs genannten Gattung bekannt, die Nachteile der zuvorgenannten Einrichtung vermeidet. An einer an der vorderen Wand der Zylindergrube befestigten gemeinsamen Grundleiste sind starre Paßstifte vorgesehen, die im Querschnitt rechteckig ausgebildet sind und durch dafür am Druckanfang der Druckplatte vorgesehene Paßschlitze hindurchragen. Dabei dienen die Vorderkanten der Paßstifte als Anschlag für die Kanten der Paßschlitze. Es ergibt sich aber der Nachteil, daß sich beim Justieren bzw. Spannen der Druckplatte in Umfangsrichtung die Kanten der Paßschlitze durch die hindurchragenden Paßstifte deformieren. Erfolgt beim Spannen auch nur einmal eine Beschädigung eines Paßschlitzes, so ist ein paßgerechtes Vorausrichten beim ersten und jedem weiteren Aufspannvorgang nicht mehr möglich. Darüber hinaus ist ein entsprechender Nachteil dieser Vorrichtung in der Praxis der, daß bei einer schief kopierten Platte keine Korrekturmöglichkeit gegeben ist. Müßte z.B. die eine Seite der Platte gegenüber der anderen Seite korrigiert werden und liegt die Platte bereits an den Anschlägen an, dann kann bestenfalls zunächst ein Nachlassen der Plattenspannung an der entsprechenden Seite erfolgen, um z.B. eine parallele Druckanfangslinie zu bekommen. Anschließend an diesen Arbeitsvorgang ist eine zusätzliche Umfangsregisterverstellung des gesamten Plattenzylinders erforderlich. Eine entsprechende Einrichtung ist deshalb unerläßlich.From DE-PS 20 10 899 a device of the type mentioned is known which avoids disadvantages of the aforementioned device. Rigid dowel pins are provided on a common base strip fastened to the front wall of the cylinder pit. The dowel pins are rectangular in cross-section and protrude through fitting slots provided for this purpose at the beginning of the printing plate. The front edges of the dowel pins serve as a stop for the edges of the dowel slots. However, there is the disadvantage that when the pressure plate is adjusted or tensioned in the circumferential direction, the edges of the fitting slots deform due to the protruding dowel pins. If a fitting slot is damaged only once during tensioning, it is no longer possible to pre-align it correctly in the first and each subsequent clamping operation. In addition, a corresponding disadvantage of this device in practice is that there is no possibility of correction in the case of a disc copied obliquely. Should e.g. one side of the plate is corrected against the other side and if the plate already touches the stops, then at best the plate tension on the corresponding side can first be released, e.g. to get a parallel print start line. Following this operation, an additional circumferential register adjustment of the entire plate cylinder is required. A corresponding facility is therefore essential.

Ausgehend von diesem Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, ein leicht bedienbares Registersystem zu schaffen, das die bei der Herstellung der Druckplatte bereits erzielte Genauigkeit auch beim Gebrauch in der Maschine zwangsläufig garantiert und das ein präzises Ausrichten einer Druckplatte in kürzester Zeit ohne Beschädigung und Verzug von Registerstanzungen ermöglicht.Based on this prior art, the present invention has for its object to provide an easy-to-use register system, which inevitably guarantees the accuracy already achieved in the manufacture of the printing plate, even when used in the machine, and which enables precise alignment of a printing plate in the shortest possible time without Damage and warping of register punchings possible.

Diese Aufgabe wird erfindungsgemäß mit einem Registersystem der eingangs genannten Art dadurch gelöst, daß die Paßmarken als maximal in Höhe der Druckplattenoberfläche liegende, gegenüber den Paßstanzungen kleinere, ähnliche Flächen ausgebildet sind, die sich von dem sie umgebenden und durch die Paßstanzungen hindurch sichtbaren Bereich kontrastreich abheben.This object is achieved according to the invention with a register system of the type mentioned at the outset in that the registration marks are designed as similar surfaces which are at a maximum at the level of the printing plate surface and are smaller compared to the registration punchings and which contrast with the area surrounding them and are visible through the registration punchings .

Bei einer derartigen Anordnung bleibt das Klemmen, Spannen und Verstellen der Druckplatten ohne nachteiligen Einfluß auf Stanzungen des Registersystems und die Druckplatten können auch bei wiederholtem Gebrauch unabhängig von Deformationen und Beschädigungen im Vorderkantenspannbereich schnell in eine paßgerechte Lage gebracht werden, so daß sich zum Erhalt eines registergenauen Mehrfarbendruckes ein Nachstellen der Druckplatten praktisch immer erübrigt, obwohl das System ein Nachstellen zuläßt. Auch können die Paßstanzungen bei der Kopierung der Druckplatten selbst als Justierungshilfe verwendet werden.With such an arrangement, the clamping, tensioning and adjusting of the printing plates remains without an adverse influence on the punching of the register system and the printing plates can be brought into a fit position quickly, even with repeated use, regardless of deformations and damage in the leading edge clamping area, so that an accurate register is obtained Multi-color printing practically always eliminates the need to readjust the printing plates, although the system permits readjustment. The punched holes can also be used as an adjustment aid when copying the printing plates.

Zwecks besonders deutlicher Wahrnehmung von Abweichungen der Druckplatte von ihrer paßgerechten Lage ist in Weiterbildung des Erfindungsgedankens der die kleineren Flächen umgebende Bereich durch kontrastreiche Schattenfugen gebildet.For the purpose of particularly clear perception of deviations of the printing plate from its fitting position, the area surrounding the smaller areas is formed by contrasting shadow gaps in a further development of the inventive concept.

Zur Erhöhung der Justiergenauigkeit des Registersystems weisen in weiterer Ausgestaltung des Erfindungsgedankens die durch die Paßstanzungen hindurch sichtbaren Schattenfugen eine gleichmäßige Breite von wenigen zehntel Millimetern auf.To increase the adjustment accuracy of the register system, in a further embodiment of the inventive concept, the shadow gaps visible through the punched punchings have a uniform width of a few tenths of a millimeter.

Um die Mittel bezüglich des Herstellungsaufwandes und der Kosten so gering wie möglich zu halten, sind in vorteilhafter Ausgestaltung der Erfindung die Paßstanzungen und die diesen ähnlichen Flächen kreisförmig ausgebildet. Außerdem bietet der Kreis als vollkommen symmetrische Figur eine optimale Möglichkeit zum Ausfluchten. Eine andere Ausgestaltung der Erfindung besteht darin, daß die Paßstanzungen und die diesen ähnlichen Flächen vieleckig ausgebildet sind, da durch geradlinig verlaufende Schattenfugen ebenfalls eine genaue optische Ausfluchtung erzielt werden kann.In order to keep the means as low as possible with regard to the manufacturing outlay and the costs, in an advantageous embodiment of the invention the fitting punchings and the surfaces similar to them are circular. In addition, the circle as a perfectly symmetrical figure offers an optimal possibility for alignment. Another embodiment of the invention consists in the fact that the die-cuts and the surfaces similar to them are polygonal are formed, since straight shadow gaps can also be used to achieve precise optical alignment.

Eine zweckmäßige Ausführungsform der Erfindung zeichnet sich dadurch aus, daß als ähnliche Flächen die gegen die Druckplatte gerichteten Stirnflächen von Registerbolzen vorgesehen sind, die im Plattenzylinder befestigt sind. Eine baulich derart einfache Anordnung und fertigungstechnisch günstige Lösung ermöglicht auch das nachträgliche Ausrüsten bereits vorhandener Plattenzylinder mit dem Registersystem. Außerdem können die für die Ausjustierung der Druckplatte dienenden ähnlichen Flächen bei Verschmutzung oder Abnutzung derselben leicht ausgetauscht und ersetzt werden.An expedient embodiment of the invention is characterized in that the end faces directed against the pressure plate of register bolts are provided as similar surfaces and are fastened in the plate cylinder. A structurally so simple arrangement and a solution that is favorable in terms of production technology also makes it possible to retrofit existing plate cylinders with the register system. In addition, the similar surfaces serving for the adjustment of the printing plate can easily be exchanged and replaced if they are dirty or worn.

Weitere vorteilhafte Ausgestaltungen des Erfindungsgedankens sind in der nachfolgenden Beschreibung und in den Unteransprüchen 3 und 8 bis 14 enthalten.Further advantageous refinements of the inventive concept are contained in the following description and in subclaims 3 and 8 to 14.

Die Erfindung wird nachfolgend in Form einer Grundausführung sowie von fünf Ausführungsbeispielen anhand der Zeichnung nährer erläutert.The invention is explained in more detail below in the form of a basic embodiment and five exemplary embodiments with reference to the drawing.

Es zeigen:

  • Fig. 1 Eine teilgeschnittene Seitenansicht einer Grundausführung eines Registersystems nach der Erfindung als Ausriß aus einem Plattenzylinder,
  • Fig. 2 eine Draufsicht von Figur 1,
  • Fig. 3 einen Ausriß aus einem Zylinderkanal mit Draufsicht auf eine unausgerichtete Druckplatte mit dem Registersystem am Druckanfang,
  • Fig. 4 die gleiche Ansicht wie in Figur 3 mit Draufsicht auf eine ausgerichtete Druckplatte,
  • Fig. 5 eine Draufsicht auf einen Plattenzylinder mit zusätzlich am Druckende angeordnetem, dritten Registerbolzen,
  • Fig. 6 eine teilgeschnittene schematische Seitenansicht eines zweiten Ausführungsbeispieles des Registersystems,
  • Fig. 7 eine der Fig. 6 entsprechende Ansicht eines dritten Ausführungsbeispieles des Registersystems,
  • Fig. 8 eine der Fig. 6 entsprechende Ansicht eines vierten Ausführungsbeispiels des Registersystems,
  • Fig. 9 eine der Fig. 6 entsprechende Ansicht eines fünften Ausführungsbeispiels des Registersystems,
  • Fig. 10 eine der Fig. 6 entsprechende Ansicht eines sechsten Ausführungsbeispiels des Registersystems, und
  • Fig. 11 eine Draufsicht von Fig. 10.
Show it:
  • 1 is a partially sectioned side view of a basic version of a register system according to the invention as a tear from a plate cylinder,
  • 2 is a top view of FIG. 1,
  • 3 is an elevation from a cylinder channel with a plan view of an unaligned printing plate with the register system at the start of printing,
  • 4 shows the same view as in FIG. 3 with a plan view of an aligned printing plate,
  • 5 is a plan view of a plate cylinder with a third register bolt additionally arranged at the printing end,
  • 6 is a partially sectioned schematic side view of a second embodiment of the register system,
  • 7 shows a view corresponding to FIG. 6 of a third exemplary embodiment of the register system,
  • 8 shows a view corresponding to FIG. 6 of a fourth exemplary embodiment of the register system,
  • 9 is a view corresponding to FIG. 6 of a fifth exemplary embodiment of the register system,
  • 10 is a view corresponding to FIG. 6 of a sixth embodiment of the register system, and
  • 11 is a plan view of FIG. 10.

Wie in den Figuren 1 bis 5 dargestellt, sind bei einer Grundausführung der Erfindung beidseitig im Zylinderkanal 1 eines Plattenzylinders 2 auf der dem Druckanfang zugewandten Seite mittels Schrauben 3 in Längsrichtung des Zylinderkanals 1 verstellbare Haltestücke 4 mit genauem Zwischenabstand und achsparallel zueinander befestigt. Auf jedem Haltestück 4 ist ein mittels Stellschrauben 5 höhenverstellbarer Zwischenträger 6 angeschraubt. Der Zwischenträger 6 ist mit einer Durchgangsbohrung 7 versehen, die zur Aufnahme eines Registerbolzens 8 dient.As shown in Figures 1 to 5, in a basic embodiment of the invention on both sides in the cylinder channel 1 of a plate cylinder 2 on the side facing the start of printing by means of screws 3 in the longitudinal direction of the cylinder channel 1 adjustable holding pieces 4 are fastened with an exact spacing and axially parallel to each other. An intermediate support 6, which is height-adjustable by means of set screws 5, is screwed onto each holding piece 4. The intermediate carrier 6 is provided with a through hole 7 which serves to receive a register bolt 8.

Der Registerbolzen 8 ist an seinem einer in den Zylinderkanal 1 hineinragenden Druckplatte 9 zugewandten Ende mit einer festsitzenden Steckhülse 10 versehen, welche stirnseitig mit einer kreisförmigen Aussparung 11 ausgestattet ist und bündig mit der Stirnfläche 12 des Registerbolzens 8 abschließt. Die Stirnfläche 12 des Registerbolzens 8 sowie die auf diesem befestigte Steckhülse 10 sind zusammen plan geschliffen und ähnlich der Druckplattenoberfläche glänzend poliert. Die Grundfläche der den Registerbolzen 8 umschließenden kreisförmigen Aussparung 11 ist gegenüber der von ihr eingeschlossenen Stirnfläche 12 des Registerbolzens 8 und gegenüber der sie umschließenden Kreisringfläche der Steckhülse 10 sowie gegenüber der Oberfläche der Druckplatte 9 kontrastreich ausgelegt, was z.B. durch eine Mattierung erfolgen kann. Vorzugsweise ist die kreisförmige Aussparung 11 schwarz gefärbt und bildet somit gegenüber den zuvorgenannten Oberflächen einen starken, visuell leicht erkennbaren Kontrast.The register bolt 8 is provided at its end facing a pressure plate 9 projecting into the cylinder channel 1 with a fixed plug-in sleeve 10, which is provided on the end face with a circular recess 11 and is flush with the end face 12 of the register bolt 8. The end face 12 of the register bolt 8 and the plug-in sleeve 10 fastened thereon are ground flat together and polished to a similar finish to the printing plate surface. The base area of the circular recess 11 surrounding the register bolt 8 is designed with high contrast to the end face 12 of the register bolt 8 enclosed by it and to the circular ring surface of the plug-in sleeve 10 and the surface of the pressure plate 9, which e.g. can be done by matting. The circular cutout 11 is preferably colored black and thus forms a strong, visually recognizable contrast with the aforementioned surfaces.

Zwischen der Druckplattenunterkante und der Registerbolzenoberkante besteht im montierten Zustand, d.h. in Planlage der Druckplatte 9 ein Spalt 13 von wenigen hunderstel Millimetern. Dieser Spalt ist aber nicht unbedingt notwendig; er kann auch entfallen.In the assembled state, there is between the lower edge of the pressure plate and the upper edge of the register bolt, i.e. in the flat position of the pressure plate 9, a gap 13 of a few hundredths of a millimeter. However, this gap is not absolutely necessary; it can also be omitted.

Die in den Zylinderkanal 1 hineinragende Druckplatte 9 ist mittels schematisch in Figur 5 dargestellter Klemmschrauben 15 in Spannschienen 18 einer nicht näher dargestellten und beschriebenen Druckplattenspannvorrichtung, wie sie z.B. aus der DE-PS 23 10 228 bekannt ist, in ihrem Spannbereich 19 festgeklemmt. Die Druckplatte 9 ist bereits bei der Herstellung bzw. vor der Plattenkopie mittels einer Registerstanze im Bereich der Registerbolzen 8, mit genauem Zwischenabstand wie diese, am Druckanfang mit zwei kreisförmigen Paßstanzungen 14 versehen worden, deren Durchmesser wenige zehntel Millimeter größer ist als der der Stirnflächen 12 der Registerbolzen 8. Durch die gegenüber ihrer Umgebung dunklere Auslegung der kreisförmigen Aussparungen 11 bilden deren von oberhalb der Druckplatte 9 sichtbaren Bereiche, welche zwischen den Paßstanzungen 14 und den Registerbolzen 8 liegen, gut wahrnehmbare, kontrastreiche Schattenfugen 16.The pressure plate 9 protruding into the cylinder channel 1 is by means of clamping screws 15 schematically shown in FIG. is known from DE-PS 23 10 228, clamped in its clamping area 19. The printing plate 9 has already been provided at the start of printing with two circular fitting punchings 14, the diameter of which is a few tenths of a millimeter larger than that of the end faces 12, during manufacture or before the plate copy by means of a register punch in the area of the register bolts 8 the register bolt 8. Due to the darker design of the circular recesses 11 compared to their surroundings, the areas visible from above the pressure plate 9, which lie between the punched holes 14 and the register bolt 8, form clearly perceptible, high-contrast shadow gaps 16.

Auf das bei der Plattenkopie angewandte System zum paßgerechten Aufbringen der Filme auf die Druckplatten 9 in Relation zu den Paßstanzungen 14 wird hier nicht näher eingegangen, da es außerhalb des Rahmens der Erfindung liegt. Es ist natürlich selbstverständlich, daß die Paßstanzungen 14 entweder gemeinsam mit Stanzungen zur Filmjustierung erfolgen, oder daß die Paßstanzungen 14 direkt zur Filmjustage dienen.The system used in plate copying for fitting the films onto the printing plates 9 in relation to the punching holes 14 will not be discussed here, since it is outside the scope of the invention. It goes without saying that the punched holes 14 are either made together with punched holes for film adjustment, or that the punched holes 14 are used directly for film adjustment.

Die Wirkungsweise sowie die Handhabung der Grundausführung des Registersystems zum passerhaltigen Ausrichten der Druckplatte 9 auf dem Plattenzylinder 2 geht folgendermaßen, vor sich.The mode of operation and the handling of the basic version of the register system for register-oriented alignment of the pressure plate 9 the plate cylinder 2 goes as follows.

Die Druckplatte wird in bekannter Weise mittels der Klemmschrauben 15 in den Spannschienwn lV festgeklemmt, Um nun die Druckplatte 9 passerhaltig genau auszurichten, visiert der Drucker über die beiden achsparallel liegenden, kreisförmigen Paßstanzungen 14 der Druckplatte 9 die auf den Registerbolzen 8 befindlichen Stirnflächen 12 an und bringt diese in Fluchtung miteinander.The pressure plate is clamped in a known manner by means of the clamping screws 15 in the clamping rails IV . In order to now align the pressure plate 9 precisely in register, the printer uses the two axially parallel, circular die-cuts 14 on the pressure plate 9 to face the end faces 12 located on the register bolts 8 align them.

Vor dem Ausrichten bietet sich dem Drucker in etwa ein Bild, wie es in der Figur 3 dargestellt ist. Die beiden Paßstanzungen 14 der Druckplatte 9 sind exzentrisch versetzt zu den diesen ähnlichen Stirnflächen 12 der Registerbolzen 8. Dies wird besonders deutlich durch den exzentrischen Versatz der die Stirnflächen 12 umschließenden Schattenfugen 16 gegenüber den zugehörigen Paßstanzungen 14 wahrgenommen.Before the alignment, the printer is presented with an image, as shown in FIG. 3. The two fitting punchings 14 of the pressure plate 9 are offset eccentrically from the end faces 12 of the register bolts 8 which are similar to this. This is particularly clearly perceived by the eccentric offset of the shadow gaps 16 surrounding the end faces 12 relative to the associated fitting punchings 14.

Mittels Stellschrauben der nicht dargestellten und näher beschriebenen Druckplattenspannvorrichtung wird nun die von den Druckplattenspannschienen gehaltene Druckplattenvorderkante derart verstellt und ausjustiert, bis eine konzentrische Übereinstimmung zwischen den beiden Paßstanzungen 14 der Druckplatte 9 und den beiden Stirnflächen 12 der Registerbolzen 8 hergestellt ist. (S. Fig. 4).By means of adjusting screws of the printing plate clamping device, not shown and described in more detail, the printing plate leading edge held by the printing plate clamping rails is now adjusted and adjusted until a concentric correspondence between the two fitting punchings 14 of the printing plate 9 and the two end faces 12 of the register bolts 8 is established. (See Fig. 4).

Ein Verzug oder ein Stauchen der Druckplattenvorderkante durch deren Festklemmen bleibt dabei vollkommen ohne Einfluß auf die Paßstanzungen 14 des angewandten Registersystems, so daß die mit diesem versehenen und bereits einmal ausgerichteten Druckplatten 9 ohne weiteres mehrmals verwendet, d.h. wiederholt gespannt und frisch ausjustiert werden können, ohne daß dabei die bereits bei der Herstellung erzielte Genauigkeit des Registersystems verloren geht.A warping or upsetting of the leading edge of the printing plate due to its clamping remains completely without influence on the fitting punchings 14 of the register system used, so that the printing plates 9 provided with this and already aligned are easily used several times, i.e. can be repeatedly tensioned and freshly adjusted without losing the accuracy of the register system already achieved during manufacture.

Durch die kontrastreiche Auslegung der bei der Grundausführung des Registersystems als Schattenfugen 16 dienenden Aussparungen 11 und durch die Wahl einer geringen Breite der Schattenfugen 16 von nur wenigen zehntel Millimetern wird eine hohe Genauigkeit des Registersystems erzielt, infolge der der Drucker sehr leicht auch noch kleinsten exzentrischen Versatz der Stirnflächen 12 gegenüber den Paßstanzungen 14 und somit kleinste Abweichungen der Druckplatte 9 von ihrer registerhaltigen Lage erkennen kann. Die Praxis hat bewiesen, daß aufgrund der hohen Genauigkeit des Registersystems ein einmaliges Ausrichten der Druckplatten 9 zum Erlangen eines registerhaitigen Mehrfarbendruckes vollkommen ausreicht.Due to the high-contrast design of the recesses 11 serving as shadow gaps 16 in the basic design of the register system and by the selection of a small width of the shadow gaps 16 of only a few tenths of a millimeter, a high accuracy of the register system is achieved, as a result of which the printer very easily even the smallest eccentric offset the end faces 12 with respect to the punched punchings 14 and thus the smallest deviations of the printing plate 9 from its register position can be recognized. Practice has shown that, due to the high accuracy of the register system, a one-time alignment of the printing plates 9 is completely sufficient to achieve multi-color printing.

Von besonderem Vorteil ist außerdem noch, daß dieses Registersystem eben aufgrund seiner oben erwähnten Genauigkeit alleine oder auch als Ergänzung zu bereits vorhandenen gröberen Paßsystemen zur Anwendung kommen kann.It is also of particular advantage that this register system can be used alone or as a supplement to existing coarser fitting systems due to its accuracy mentioned above.

Um eine zusätzliche Hilfe beim seitlichen Ausrichten der Druckplatte 9 am Druckende zu geben, kann, gemäß der Abbildung in Figur 5, an der dem Druckende zugewandten Seite des Zylinderkanals 1 mittig zusätzlich ein dritter Registerbolzen 8 in gleicher baulicher Anordnung vorgesehen werden. Da sich durch unterschiedliche Zurichtungsstärken auch in Umfangsrichtung unterschiedliche Drucklängen ergeben können, können am Druckende aus diesem Grund auch keine einzelnen kreisförmigen Paßstanzungen 14 gemäß denen am Druckanfang zur Anwendung kommen. Stattdessen muß der hintere Druckplattenbereich mit einem Langloch 20 versehen werden, dessen seitliche Ränder im ausgerichteten Zustand der Druckplatte 9 jeweils gleichen Abstand zur Stirnfläche 12 des hinteren Registerbolzens 8 aufweisen müssen (Figur 5). Erfindungswesentlich ist ein zusätzlich am Druckende gelegener Registerbolzen 8 jedoch nicht.In order to provide additional help in the lateral alignment of the printing plate 9 at the end of the print, a third register pin 8 in the same structural arrangement can additionally be provided in the center, as shown in FIG. 5, on the side of the cylinder channel 1 facing the print end. Since different printing lengths can also result in the circumferential direction due to different dressing strengths, for this reason it is also not possible to use individual circular fitting punchings 14 according to those at the start of printing. Instead, the rear pressure plate area must be provided with an elongated hole 20, the lateral edges of which in the aligned state of the pressure plate 9 must have the same distance from the end face 12 of the rear register bolt 8 (FIG. 5). Essential to the invention is, however, an additional register bolt 8 located at the end of the print.

Bei einem ersten Ausführungsbeispiel des Registersystems gemäß Figur 6 sind die Registerbolzen 8 auf ihrem der Druckplatte 9 zugewandten Ende jeweils mit einem kreisförmigen Ansatz 21 versehen, der mit geringfügig kleinerem Durchmesser ausgebildet ist, als die dazugehörige kreisförmige Paßstanzung 14 der Druckplatte 9. Die Schattenfugen 16 werden bei dieser Ausführungsform von dem durch die kreisförmigen Paßstanzungen 14 der Druckplatte her gesehen sichtbaren Teil der die kreisförmigen Ansätze 21 umschließenden Kreisringflächen der Registerbolzen 8 gebildet.In a first exemplary embodiment of the register system according to FIG. 6, the register bolts 8 are each provided on their end facing the pressure plate 9 with a circular projection 21 which is designed with a slightly smaller diameter than the associated circular fitting punch 14 of the pressure plate 9. The shadow gaps 16 In this embodiment, the part of the circular ring surfaces of the register bolts 8 which surrounds the circular projections 21 and which is visible through the circular fitting punchings 14 of the pressure plate.

Ein in Figur 7 dargestelltes zweites Ausführungsbeispiel des Registersystems weist als Schattenfugen in die Registerbolzen 8 stirnseitig eingelassene Ringnuten 22 auf, deren Innendurchmesser geringfügig, vorzugsweise um wenige zehntel Millimeter, kleiner ist als der der dazugehörigen Paßstanzungen 14 der Druckplatte 9. Die Ringnuten 22 sind vorzugsweise schwarz ausgelegt. Die Schattenfugen 16 ergeben sich bei diesem Ausführungsbeispiel durch die von oberhalb der Druckplatte 9 einsehbaren, zwischen den Paßstanzungen und dem Innendurchmesser der Ringnuten 22 liegenden Ringnutenbereiche.A second exemplary embodiment of the register system shown in FIG. 7 has, as shadow gaps in the front of the register bolts 8, annular grooves 22, the inside diameter of which is slightly smaller, preferably a few tenths of a millimeter, than that of the associated fitting punchings 14 of the pressure plate 9. The ring grooves 22 are preferably black designed. In this exemplary embodiment, the shadow gaps 16 result from the ring groove regions which can be seen from above the pressure plate 9 and lie between the fitting punchings and the inner diameter of the ring grooves 22.

Die Registerbolzen 8 eines dritten Ausführungsbeispieles des Registersystems sind stirnseitig mit Sacklochbohrungen 23 geringfügig kleineren Durchmessers als dem der Paßstanzungen 14 der Druckplatte 9 versehen. Bei diesem Ausführungsbeispiel ist eine gesonderte Kontrastierung einzelner Oberflächen nicht unbedingt erforderlich, jedoch zu einer Verstärkung der Kontrastwirkung zweckdienlich, da sich der Kontrast der für das Ausrichten der Druckplatte 9 maßgeblichen Fläche durch den gegenüber seiner Umgebung dunkleren Sacklochbohrgrund 24 ergibt, der je nach Tiefe der Sacklochbohrungen 23 heller oder dunkler sein kann (Figur 8).The register bolts 8 of a third exemplary embodiment of the register system are provided on the end face with blind holes 23 of slightly smaller diameter than that of the fitting punchings 14 of the pressure plate 9. In this exemplary embodiment, a separate contrasting of individual surfaces is not absolutely necessary, but is useful for increasing the contrast effect, since the contrast of the surface relevant for the alignment of the printing plate 9 results from the blind hole base 24, which is darker than its surroundings, and which depends on the depth of the blind hole holes 23 can be lighter or darker (Figure 8).

Bei einem vierten Ausführungsbeispiel des Registersystems gemäß Figur 9 sind die Ringnuten 22 direkt in die Oberfläche des Plattenzylinders 2 ohne Zwischenschaltung von Registerbolzen 8 eingelassen. Als zum Ausrichten der Druckplatte 9 dienende ähnliche Flächen fungieren dabei von den Ringnuten 22 einge-. schlossene Kreisflächen 17 des Plattenzylinders 2. Die Schattenfugen 16 werden von den von oberhalb der Druckplatte 9 sichtbaren Bereichen der kontrastreich gefärbten Ringnuten 22 gebildet, die zwischen den kreisförmigen Paßstanzungen 14 und dem Innendurchmesser der Ringnuten 22 liegen.In a fourth embodiment of the register system according to FIG. 9, the annular grooves 22 are embedded directly in the surface of the plate cylinder 2 without the interposition of register bolts 8. As for alignment similar surfaces serving the pressure plate 9 act from the annular grooves 22. closed circular surfaces 17 of the plate cylinder 2. The shadow gaps 16 are formed by the areas of the high-contrast colored ring grooves 22 which are visible from above the pressure plate 9 and which lie between the circular fitting punchings 14 and the inner diameter of the ring grooves 22.

Natürlich können die der Plattenjustierung dienenden ähnlichen Flächen statt kreisförmig auch vieleckig ausgebildet sein. Dies ist bei einem fünften, in den Figuren 10 und 11 dargestellten Ausführungsbeispiel des Registersystems der Fall, bei dem die Paßstanzungen 14 der Druckplatte 9 und die diesen ähnlichen, kleineren Stirnflächen 12 der Registerbolzen 8 dreieckig, vorzugsweise als gleichseitige Dreiecke ausgebildet sind. Die Stirnflächen 12 befinden sich dabei auf endseitigen dreieckförmigen Ansätzen 25 der Registerbolzen 8. Die zwischen den Paßstanzungen 14 und den Ansätzen 25 liegenden Bereiche der abgesetzten Registerbolzen 8 formen von oberhalb der Druckplatte 9 her gesehen die Schattenfugen 16.Of course, the similar surfaces used for plate adjustment can also be polygonal instead of circular. This is the case with a fifth exemplary embodiment of the register system shown in FIGS. 10 and 11, in which the fitting punchings 14 of the pressure plate 9 and the similar smaller end faces 12 of the register bolts 8 are triangular, preferably as equilateral triangles. The end faces 12 are located on the end triangular projections 25 of the register bolts 8. The areas of the offset register bolts 8 lying between the fitting punchings 14 and the projections 25 form the shadow gaps 16 seen from above the pressure plate 9.

Die Erfindung ist natürlich keinesfalls auf die in den Figuren 1 bis 11 dargestellten und in der Beschreibung niedergelegten Ausführungsformen beschränkt, die lediglich als Beispiele anzusehen sind und die Erfindung nicht begrenzen sollen. Es versteht sich von selbst, daß auch andere Ausführungsformen mit zahlreichen Abwandlungen hinsichtlich baulicher Einzelheiten denkbar sind, die im abgesteckten Rahmen der Erfindung liegen.The invention is of course in no way limited to the embodiments shown in FIGS. 1 to 11 and laid down in the description, which are only to be regarded as examples and are not intended to limit the invention. It goes without saying that other embodiments with numerous modifications with regard to structural details are also conceivable, which are within the defined scope of the invention.

So können z.B. andere Kurvenformen oder andere Formen von Vielecken für die Paßstanzungen 14 der Druckplatte 9 und die diesen ähnlichen Flächen 12 zur Anwendung kommen, wobei es ebenfalls ohne Belang ist, ob die ähnlichen Flächen 12 direkt in den Plattenzylinder oder in Registerbolzen eingelassen oder stattdessen auf endseitig in Registerbolzen ausgearbeiteten Ansätzen vorgesehen sind. Ebenso liegt es im Rahmen der Erfindung, anstatt am Druckanfang zwei und am Druckende einen jeweils nur einen einzelnen Registerbolzen 8 am Druckanfang bzw. Druckende vorzusehen oder die Kontrastierung entgegengesetzt zu gestalten, d.h. die ähnlichen Flächen 12 dunkel und die sie umgebenden Flächen hell bzw. glänzend poliert auszubilden.For example, other curve shapes or other shapes of polygons are used for the fitting punchings 14 of the pressure plate 9 and the surfaces 12 similar to them, it also being irrelevant whether the similar surfaces 12 are embedded directly in the plate cylinder or in register bolts or instead on the end in register bolts elaborated approaches are provided. It is also within the scope of the invention, instead of providing two individual register bolts 8 at the start of print and end of print instead of two at the start of print and one at the end of print, or to make the contrasting opposite, i.e. to form the similar surfaces 12 dark and the surrounding surfaces light or shiny polished.

Claims (14)

1. A registration system for the in-register lining up of a flexible printing plate (9) on the plate cylinder (2) of a rotary press with at least two register holes (14) in the printing plate (9) and register marks (12, 17, 23), designed for use therewith, on the plate cylinder (2), characterized in that the register marks take the form of matching faces (12, 17, 23), not higher than the level of the top face of the printing plate, the faces (12, 17, 23) being smaller than the register holes (14) and contrasting with the part (16) round them, such part being able to be seen through the register holes.
2. A registration system as claimed in claim 1, characterized in that the part placed round the smaller faces (12, 17, 23) is formed by contrasting, shadow-forming gaps (16).
3. A registration system as claimed in claim 2, characterized in that the shadow-forming gaps (16) are colored black and the faces (12, 17, 23) matching the register holes (14) are polished bright so as to be like the printing plate (9).
4. A registration system as claimed in claims 2 and 3, characterized in that the shadow-forming gaps (16), able to be seen through the register holes (14), have an even breadth of some tenths of a millimeter.
5. A registration system as claimed in claims 1 to 4, characterized in that the register holes (14) and the faces (12, 17, 23) matching the same are round in form.
6. A registration system as claimed in claims 1 to 4, characterized in that the register holes (14) and the faces (12) matching them are many-sided.
7. A registration system as claimed in claims 1 to 6, characterized in that the matching faces take the form of the end faces (12), turned towards the printing plate (9), of register bolts (8) which are fixed in the plate cylinder (2).
8. A registration system as claimed in claim 7, characterized in that the register bolts (8) are positioned on adjustable inbetween supports (6).
9. A registration system as claimed in claims 1 to 5, 7 and 8, characterized in that slip-on collars (10) are positioned on the register bolts (8) so as to be in line with their end faces (12), such collars (10) having at their ends round hollows (11) placed round the register bolts (8), such hollows (11) having parts, able to be seen on looking down to the printing plate (9), between the register holes (14) and the register bolts (8) and forming shadow-forming gaps (16) (figures 1 and 2).
10. A registration system as claimed in claims 1 to 5, 7 and 8, characterized in that the register bolts (8) have at their ends heads, which are a little smaller in diameter than the round register holes (14), the end faces of the heads (21) being at a level not higher than the level of the outer face of the printing plate, and the parts, seen on looking down on the printing plate (9) between the register holes (14) and the heads (21), of the cut-back ring faces of the register bolts (8) in each case take the form of shadow-forming gaps (16) (figure 6).
11. A registration system as claimed in claims 1 to 5, 7 and 8, characterized in that the register bolts (8) have at their ends ring grooves (22) running round the matching end faces (12), the inner diameter of the ring grooves (22) being a little smaller than that of the round register holes (14) and their parts, able to be seen between the register holes (14) and the inner diameter of the ring grooves (22), take the form of shadow-forming gaps (16) (figure 7).
12. A registration system as Iaimed in claims 1 to 5, 7 and 8, characterizes in that the register bolts (8) have at their ends blind holes (23) forming the matching faces, the diameter of such holes (23) being a little smaller than that of the round register holes (14) while the end faces of the holes (23) are colored dark so as to make a contrast with the parts next to them (figure 8).
13. A registration system as claimed in claims 2 to 5, characterized in that for forming shadow-forming gaps ring grooves (22) are let into the plate cylinder (2) directly without the use of any inbetween register bolts (8), and the parts, able to be seen on looking down on the printing plate (9), between the register holes (14) and the inner diameter of the ring grooves (2) take the form of the shadow-forming gaps (16) and the round faces (17), skirted by the ring grooves (22), of the plate cylinder (2) take the form of the matching faces (17) (figure 9).
14. A registration system as claimed in claims 1 to 5 and 6 to 8, characterized in that the register bolts (8) have three cornered.heads (25) at their ends, whose end faces (12), placed at a height not higher than the level of the outer face of the printing plate, take the form of matching faces, which are a little smaller than the three cornered register holes (14), and the parts, placed so that they may be seen on looking down on the printing plate (9), between the register holes (14) and the three cornered heads (25), of the machined-back end faces of the register bolts in each case take the form of the shadow-forming gaps (16) (figures 10 and 11).
EP79102147A 1978-07-20 1979-06-28 Register system for correctly adjusting a flexible printing plate Expired EP0007451B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79102147T ATE195T1 (en) 1978-07-20 1979-06-28 REGISTER SYSTEM FOR ALIGNING A FLEXIBLE PRINTING PLATE WITH REGISTRATION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2831921 1978-07-20
DE2831921A DE2831921C2 (en) 1978-07-20 1978-07-20 Register system for registering a flexible printing plate

Publications (2)

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EP0007451A1 EP0007451A1 (en) 1980-02-06
EP0007451B1 true EP0007451B1 (en) 1981-09-09

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US (1) US4679502A (en)
EP (1) EP0007451B1 (en)
JP (1) JPS5515896A (en)
AR (1) AR222339A1 (en)
AT (1) ATE195T1 (en)
AU (1) AU527555B2 (en)
BR (1) BR7904623A (en)
CA (1) CA1120326A (en)
DE (1) DE2831921C2 (en)
DK (1) DK146502C (en)
ES (1) ES482633A1 (en)
MX (1) MX148634A (en)
NO (1) NO151694C (en)
ZA (1) ZA793470B (en)

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DE3019595C2 (en) * 1980-05-22 1982-09-09 Grapho-Metronic Meß- und Regeltechnik GmbH & Co, KG, 8000 München Arrangement for registering a flexible printing plate
DE3135442A1 (en) * 1980-09-09 1982-06-16 Protocol Engineering Ltd., Berkhamsted, Hertfordshire METHOD FOR FIXING AT LEAST ONE FLEXIBLE PRINT PLATE IN A ROTARY PRESS PRESS OR THE LIKE
DE3438931A1 (en) * 1984-10-24 1986-04-24 Heidelberger Druckmaschinen Ag, 6900 Heidelberg DEVICE FOR ADJUSTING A FLEXIBLE PRINT PLATE ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES
US5209163A (en) * 1986-02-07 1993-05-11 R. R. Donnelley & Sons Company Printing cylinder with retractable plate register pin and method of assembly
US5345868A (en) * 1993-06-04 1994-09-13 Baker A Leroy Printing plate mounting support and method
US5626076A (en) * 1995-11-09 1997-05-06 Ireton; Robert E. Printing plate mounting system, physical register record plate and method employing the same

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MX148634A (en) 1983-05-19
US4679502A (en) 1987-07-14
JPS5515896A (en) 1980-02-04
NO151694B (en) 1985-02-11
DE2831921A1 (en) 1980-01-31
NO151694C (en) 1985-05-22
DE2831921C2 (en) 1983-07-07
DK146502B (en) 1983-10-24
NO792393L (en) 1980-01-22
ZA793470B (en) 1980-07-30
DK305279A (en) 1980-01-21
BR7904623A (en) 1980-04-15
ATE195T1 (en) 1981-09-15
JPS5631263B2 (en) 1981-07-20
ES482633A1 (en) 1980-04-01
AU527555B2 (en) 1983-03-10
CA1120326A (en) 1982-03-23
AU4885279A (en) 1980-01-24
AR222339A1 (en) 1981-05-15
DK146502C (en) 1984-04-02
EP0007451A1 (en) 1980-02-06

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