EP1116584B1 - Method for precisely feeding printing plates from a printing plate magazine - Google Patents

Method for precisely feeding printing plates from a printing plate magazine Download PDF

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Publication number
EP1116584B1
EP1116584B1 EP01100482A EP01100482A EP1116584B1 EP 1116584 B1 EP1116584 B1 EP 1116584B1 EP 01100482 A EP01100482 A EP 01100482A EP 01100482 A EP01100482 A EP 01100482A EP 1116584 B1 EP1116584 B1 EP 1116584B1
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EP
European Patent Office
Prior art keywords
plate
printing
printing plate
clamping device
pressure plate
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Expired - Lifetime
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EP01100482A
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German (de)
French (fr)
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EP1116584A1 (en
Inventor
Jentzsch Arndt
Uwe Becker
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Koenig and Bauer AG
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Koenig and Bauer AG
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Publication of EP1116584A1 publication Critical patent/EP1116584A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F27/00Devices for attaching printing elements or formes to supports
    • B41F27/12Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206Feeding to or removing from the forme cylinder

Definitions

  • the invention relates to a method for accurate registration of printing plates from a Disk magazine in which the printing plate is provided in the disk magazine and the Purposes of printing plate change released by this, by funding between a arranged in an axis-parallel channel of the plate cylinder clamping rail pair a Clamping spent and there the desired position of the pressure plate by their contact with two test points is checked and, if the pressure plate is not the target position in the Clamping achieved, the conveyor then releases the pressure plate.
  • From DE 44 39 623 C2 is a method for automatically feeding printing plates become known for the plate cylinder of a printing machine, in which by means of funding are in contact with the pressure plate, the leading edge of the pressure plate in a clamping rail the plate cylinder is inserted. There is the register-correct position of the printing plate checked. This is done at two spaced apart in the axial direction of the plate cylinder Places in the clamping rail. If this is given, that is, the pressure plate is at both Places on a arranged there for this purpose dowel pin, the pressure plate is in the clamping rail fixed. Is not the case and the pressure plate is only on a dowel pin On, is for a given time interval releasing the printing plate by the funding triggered. The pressure plate now has the opportunity to relax and get up Reason of their own weight to take a new orientation. After that, the contact becomes restored between pressure plate and conveyors and the pressure plate back in Promoted towards the dowel pins.
  • a further disadvantage is that not all conveyor systems are suitable, a brief release and realize a subsequent repeated gripping of the printing plate.
  • the object of the invention is to avoid the above-mentioned disadvantages To develop a method by which achieves a register-containing position in the clamping rail and the printing plate undergoes a minimal mechanical stress.
  • the advantage of the solution according to the invention is that now the automatic Feeding the printing plates can be made more secure.
  • the faulty layers of the printing plate can be corrected without manual intervention by the operator
  • the device required for the realization of the method according to the invention is in the Figure 1 shown.
  • a disk magazine 2 is a Intermediate pressure plate 1. This rests there on two at a distance from each other Pre-pass pins 21a; 21b, with the punched-12a, 12b (see the figures 2 to 4) of the printing plate 1 correspond.
  • the disk magazine 2 is in its rest position firmly attached to the frame of the printing press, not shown.
  • a plate cylinder 4 This is intended to be on his Surface record the supplied from the disk magazine 2 printing plates 1.
  • a plate cylinder channel 41 at its periphery in the axis-parallel direction arranged.
  • a clamping device 5 This consists from an upper clamping rail 52 and a lower clamping rail 51.
  • the upper clamping rail 52 is fixedly arranged on the plate cylinder channel 41.
  • the lower clamping rail 51 is against the upper clamping rail 52 for clamping the pressure plate 1 slidably.
  • the clamping device 5 are in the region of the clamping rails 51, 52 associated with dowel pins 54a, 54b. From Figures 2 to 4 it can be seen that the dowel pins 54a, 54b in a finite, the distance between the pre-dowels 21a; 21b corresponding distance to each other are arranged.
  • a clamping and tensioning device 6 is mounted in the plate cylinder channel 41.
  • Figure 1 is shown only hinted at.
  • the clamping and tensioning device 6 serves to receive the end of the printing plate. 1
  • the plate cylinder 4 is positioned so that a constellation arises which allows the insertion of a pressure plate 1 in the clamping device 5. This position is shown in FIG.
  • the printing plate 1 is prepositioned in the disk magazine 2 by the pre-dowel pin system.
  • a printing plate 1 is released from the disc magazine 2, by retracting the pre-dowel pins 21a, 21b.
  • As conveyors are in the embodiment suckers 3 provided. But there are also transport wheels and other facilities possible. These grasp the pressure plate 1 and convey it from the disc magazine 2 in the direction of the open Clamping device 5.
  • the lower clamping rail 51 is from the upper Retained clamping rail 52 and is located from the upper clamping rail 52 in the furthest away.
  • the contact points dowel pin 54a / punch 12a and dowel pin 54b / punch 12b interrogated independently. This can be differentiated whether an attachment at both contact points, at one of the contact points or is given at any of the contact points.
  • the pressure plate 1 by the sucker 3 back into the Disk magazine 2 promoted.
  • the contact between the sucker 3 and the pressure plate 1 interrupted in any phase, that is, until this time, the sucker remains 3 with the pressure plate 1 in contact.
  • the pressure plate 1 is stored. The filing takes place again on the pre-dowel pins 21a, 21b.
  • the printing plate 1 now has Opportunity to reposition yourself and may for a second if required also be taken for further experiments from the disk magazine 2.
  • the contact between the sucker 3 and the pressure plate 1 is interrupted and the sucker 3 moves back to its original position without pressure plate 1.
  • External means of moving the printing plate 1 are associated with this and promote the printing plate 1 on the clamping device 5.
  • These external means can be gummed, for example Rollers or conveyor belts, which are brought into contact with the pressure plate 1 and promote them in the direction of the clamping device 5.
  • Another possibility is not the pressure plate 1 in the direction of the clamping device 5, but the clamping device 5 itself in the direction of the pressure plate 1 to move. This can be done by the clamping device 5 by a here not shown mechanism from the periphery of the plate cylinder 4 out in the direction the printing plate 1 is moved. But it is also possible to rotate the plate cylinder 4 and so as to guide the plate cylinder 4 including the clamping device 5 to the printing plate 1. Again, after a finite number of failed attempts aborted.
  • Another embodiment of the invention is by means known per se after loosening the sucker 3, the pressure plate 1 or the clamping device 5 by suitable electromagnetic or pneumatic means to vibrate and after a reasonable time to recheck the position of the printing plate 1. Again, you can several attempts will be required.
  • the measures described above become one with another combined.
  • the pressure plate 1 is vibrated and at the same time the clamping device 5 with or without the plate cylinder 4 several times be guided in the direction of the printing plate 1.
  • the register Target position of the printing plate 1 is achieved, in the course of the further procedure the clamping device 5 is closed.
  • the plate cylinder 4 starts to rotate, wherein a roller, not shown, is employed at its periphery. This roller irons the Pressure plate 1 on the plate cylinder 4 and ensures their smooth contact with the surface of the plate cylinder 4.
  • a roller not shown
  • An unrepresented Mechanism exerts a tangentially directed force on the clamping rails of the clamping device out, so that thereby the pressure plate 1 is tensioned.

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

Abstract

The method involves positioning a printing plate (1) in a plate magazine (2) and using a suction conveying device (3) between a pair of clamp rails (51,52) arranged in a parallel channel in the plate cylinder. The target position of the printing plate is controlled through contact with two test positions and the conveying device is released if the printing plate is not in the correct place. The conveying device is guided backwards in its output position and the printing plate and clamp rails are brought into contact using other devices or by vibrating the printing plate or clamp unit (5).

Description

Die Erfindung betrifft ein Verfahren zum lagegenauen Zuführen von Druckplatten aus einem Plattenmagazin, bei dem die Druckplatte in dem Plattenmagazin bereitgestellt ist und zum Zwecke des Druckplatten-Wechsels von diesem freigegeben, durch Fördermittel zwischen ein in einem achsparallelen Kanal des Plattenzylinders angeordnetes Klemmschienenpaar einer Klemmeinrichtung verbracht und dort die Soll-Lage der Druckplatte durch deren Kontakt mit zwei Prüfstellen kontrolliert wird und, falls die Druckplatte nicht die Soll-Lage in der Klemmeinrichtung erreicht, das Fördermittel die Druckplatte anschließend freigibt.The invention relates to a method for accurate registration of printing plates from a Disk magazine in which the printing plate is provided in the disk magazine and the Purposes of printing plate change released by this, by funding between a arranged in an axis-parallel channel of the plate cylinder clamping rail pair a Clamping spent and there the desired position of the pressure plate by their contact with two test points is checked and, if the pressure plate is not the target position in the Clamping achieved, the conveyor then releases the pressure plate.

Aus der EP 0 581 212 A1 ist ein eine Lösung bekannt, bei der zwei in einem endlichen Abstand zueinander angeordnete und gegenüber der Klemmschiene elektrisch isolierte Stifte vorgesehen sind. Liegen beide Stifte an der Druckplatten-Vorderkante an, wird über die Druckplatte ein Stromkreis zwischen den Stiften geschlossen und ein Signal generiert. Damit können die Klemmschienen geschlossen werden. Die Druckplatte wird dadurch geklemmt und kann durch geeignete Einrichtungen auf den Plattenzylinder gespannt werden.From EP 0 581 212 A1 a solution is known in which two are at a finite distance mutually arranged and with respect to the clamping rail electrically isolated pins are provided. If both pins on the pressure plate leading edge, is on the Pressure plate closes a circuit between the pins and generates a signal. In order to the clamping rails can be closed. The pressure plate is thereby clamped and can be tensioned by suitable means on the plate cylinder.

Aus der DE 44 39 623 C2 ist ein Verfahren zum automatischen Zuführen von Druckplatten zum Plattenzylinder einer Druckmaschine bekannt geworden, bei dem durch Fördermittel, die mit der Druckplatte in Kontakt sind, die Vorderkante der Druckplatte in eine Klemmschiene des Plattenzylinder eingeführt wird. Dort wird die registergerechte Lage der Druckplatte überprüft. Das erfolgt an zwei in Achsrichtung des Plattenzylinders voneinander beabstandeten Orten in der Klemmschiene. Ist diese gegeben, das heißt, liegt die Druckplatte an beiden Orten an einem zu diesem Zwecke dort angeordneten Passstift an, wird die Druckplatte in der Klemmschiene fixiert. Ist das nicht der Fall und die Druckplatte liegt nur an einem Passstift an, wird für ein vorgegebenes Zeitintervall ein Freigeben der Druckplatte durch die Fördermittel ausgelöst. Die Druckplatte hat nunmehr die Gelegenheit, sich zu entspannen und auf Grund ihres Eigengewichts eine neue Orientierung einzunehmen. Danach wird der Kontakt zwischen Druckplatte und Fördermitteln wieder hergestellt und die Druckplatte wieder in Richtung der Passstifte gefördert.From DE 44 39 623 C2 is a method for automatically feeding printing plates become known for the plate cylinder of a printing machine, in which by means of funding are in contact with the pressure plate, the leading edge of the pressure plate in a clamping rail the plate cylinder is inserted. There is the register-correct position of the printing plate checked. This is done at two spaced apart in the axial direction of the plate cylinder Places in the clamping rail. If this is given, that is, the pressure plate is at both Places on a arranged there for this purpose dowel pin, the pressure plate is in the clamping rail fixed. Is not the case and the pressure plate is only on a dowel pin On, is for a given time interval releasing the printing plate by the funding triggered. The pressure plate now has the opportunity to relax and get up Reason of their own weight to take a new orientation. After that, the contact becomes restored between pressure plate and conveyors and the pressure plate back in Promoted towards the dowel pins.

Nachteilig daran ist, dass die Druckplatte nach der Unterbrechung des Kontaktes mit den Fördermitteln so oft gegen die Passstifte gedrückt wird, bis die gewünschte registerhaltige Lage erreicht ist. Das hat eine mehrmalige mechanische Beanspruchung der Druckplatte zur Folge, was zu deren Beschädigung führen kann.The disadvantage of this is that the pressure plate after the interruption of the contact with the funding as often pressed against the dowel pins until the desired register-containing position is reached. This results in a repeated mechanical stress on the printing plate, which can lead to their damage.

Nachteilig ist weiterhin, dass nicht alle Fördersysteme geeignet sind, ein kurzzeitiges Loslassen und ein anschließendes wiederholtes Ergreifen der Druckplatte zu realisieren.A further disadvantage is that not all conveyor systems are suitable, a brief release and realize a subsequent repeated gripping of the printing plate.

Die Aufgabe der Erfindung besteht darin, unter Vermeidung der oben genannten Nachteile ein Verfahren zu entwickeln, durch das eine registerhaltige Lage in der Klemmschiene erzielt wird und die Druckplatte eine minimale mechanische Belastung erfährt.The object of the invention is to avoid the above-mentioned disadvantages To develop a method by which achieves a register-containing position in the clamping rail and the printing plate undergoes a minimal mechanical stress.

Diese Aufgabe wird durch die Merkmale des 1 Anspruchs gelöst.This object is solved by the features of claim 1.

Der Vorteil der erfindungsgemäßen Lösung besteht darin, dass nunmehr das automatische Zuführen der Druckplatten störungssicherer erfolgen kann. Die Fehl-Lagen der Druckplatte können ohne manuellen Eingriff der Bedienperson korrigiert werdenThe advantage of the solution according to the invention is that now the automatic Feeding the printing plates can be made more secure. The faulty layers of the printing plate can be corrected without manual intervention by the operator

Die Erfindung soll nachfolgend an Hand eines Ausführungsbeispieles näher erläutert werden.The invention will be explained in more detail with reference to an embodiment.

Die Zeichnungen hierzu haben folgende Bedeutung:

Figur 1
Schematische Darstellung eines Plattenzylinder mit geöffneter Klemmschiene während des Zuführens einer Druckplatte
Figur 2
Darstellung der registergerechten Anlage der Druckplatte an den Passstiften
Figur 3
Darstellung einer nicht-registergerechten Anlage der Druckplatte an den Passstiften. Die Druckplatte liegt an keinen der beiden Passstifte an.
Figur 4
Darstellung einer nicht-registergerechten Anlage der Druckplatte an den Passstiften. Die Druckplatte liegt an einem der beiden Passstifte an.
The drawings have the following meaning:
FIG. 1
Schematic representation of a plate cylinder with open clamping rail during the feeding of a printing plate
FIG. 2
Representation of the registration of the printing plate on the dowel pins
FIG. 3
Representation of a non-register-compatible installation of the pressure plate on the dowel pins. The pressure plate does not touch any of the two dowel pins.
FIG. 4
Representation of a non-register-compatible installation of the pressure plate on the dowel pins. The pressure plate rests against one of the two dowel pins.

Die zur Realisierung des erfindungsgemäßen Verfahrens erforderliche Vorrichtung ist in der Figur 1 dargestellt. Wie aus dieser Figur ersichtlich ist, ist in einem Plattenmagazin 2 eine Druckplatte 1 zwischengelagert. Diese ruht dort auf zwei in einem Abstand zueinander angeordneten Vorpass-Stiften 21a; 21b, die mit Ausstanzungen 12a, 12b (siehe hierzu die Figuren 2 bis 4) der Druckplatte 1 korrespondieren. Das Plattenmagazin 2 ist in seiner Ruhestellung fest an dem nicht dargestellten Gestell der Druckmaschine angebracht.The device required for the realization of the method according to the invention is in the Figure 1 shown. As can be seen from this figure, in a disk magazine 2 is a Intermediate pressure plate 1. This rests there on two at a distance from each other Pre-pass pins 21a; 21b, with the punched-12a, 12b (see the figures 2 to 4) of the printing plate 1 correspond. The disk magazine 2 is in its rest position firmly attached to the frame of the printing press, not shown.

Ebenfalls im Gestell gelagert ist ein Plattenzylinder 4. Dieser ist dazu bestimmt, auf seiner Oberfläche die aus dem Plattenmagazin 2 zugeführten Druckplatten 1 aufzunehmen. Zu diesem Zwecke ist an seinem Umfang in achsparalleler Richtung ein Plattenzylinderkanal 41 angeordnet. Im Plattenzylinderkanal 41 befindet sich eine Klemmeinrichtung 5. Diese besteht aus einer oberen Klemmschiene 52 und einer unteren Klemmschiene 51. Die obere Klemmschiene 52 ist fest am Plattenzylinderkanal 41 angeordnet. Die untere Klemmschiene 51 ist gegen die obere Klemmschiene 52 zum Klemmen der Druckplatte 1 verschiebbar.Also stored in the frame is a plate cylinder 4. This is intended to be on his Surface record the supplied from the disk magazine 2 printing plates 1. To this Purposes is a plate cylinder channel 41 at its periphery in the axis-parallel direction arranged. In the plate cylinder channel 41 is a clamping device 5. This consists from an upper clamping rail 52 and a lower clamping rail 51. The upper clamping rail 52 is fixedly arranged on the plate cylinder channel 41. The lower clamping rail 51 is against the upper clamping rail 52 for clamping the pressure plate 1 slidably.

Der Klemmeinrichtung 5 sind im Bereich der Klemmschienen 51, 52 Passstifte 54a, 54b zugeordnet. Aus den Figuren 2 bis 4 ist ersichtlich, dass die Passstifte 54a, 54b in einem endlichen, dem Abstand zwischen den Vor-Passstiften 21a; 21b entsprechenden Abstand zueinander angeordnet sind.The clamping device 5 are in the region of the clamping rails 51, 52 associated with dowel pins 54a, 54b. From Figures 2 to 4 it can be seen that the dowel pins 54a, 54b in a finite, the distance between the pre-dowels 21a; 21b corresponding distance to each other are arranged.

Weiterhin ist im Plattenzylinderkanal 41 eine Klemm- und Spanneinrichtung 6 gelagert. In der Figur 1 ist diese nur andeutungsweise dargestellt. Die Klemm- und Spanneinrichtung 6 dient zur Aufnahme des Endes der Druckplatte 1.Furthermore, a clamping and tensioning device 6 is mounted in the plate cylinder channel 41. In Figure 1 is shown only hinted at. The clamping and tensioning device 6 serves to receive the end of the printing plate. 1

Zur Realisierung des erfindungsgemäßen Verfahrens wird das Plattenmagazin 2 mit einer Druckplatte 1 bestückt und aus seiner Ruhestellung in die Stellung zum Druckplatten-Wechsel gefahren. Der Plattenzylinder 4 wird so positioniert, dass eine Konstellation entsteht, die das Einführen einer Druckplatte 1 in die Klemmeinrichtung 5 ermöglicht. Diese Stellung ist in der Figur 1 dargestellt. To realize the method according to the invention, the disk magazine 2 with a Pressure plate 1 equipped and from its rest position to the position for printing plate change hazards. The plate cylinder 4 is positioned so that a constellation arises which allows the insertion of a pressure plate 1 in the clamping device 5. This position is shown in FIG.

Die Druckplatte 1 ist im Plattenmagazin 2 durch das Vor-Passstift-System vorpositioniert. Zum Druckplatten-Wechsel wird eine Druckplatte 1 aus dem Plattenmagazin 2 freigegeben, indem die Vor-Passstifte 21a, 21b zurückgezogen werden. Dabei treten Fördereinrichtungen in Kontakt mit der Druckplatte 1. Als Fördereinrichtungen sind im Ausführungsbeispiel Sauger 3 vorgesehen. Es sind aber auch Transportrollen und andere Einrichtungen möglich. Diese erfassen die Druckplatte 1 und fördern sie aus dem Plattenmagazin 2 in Richtung der geöffneten Klemmeinrichtung 5. In dieser Stellung ist die untere Klemmschiene 51 von der oberen Klemmschiene 52 zurückgezogen und befindet sich von der oberen Klemmschiene 52 in der am weitesten entfernten Stellung.The printing plate 1 is prepositioned in the disk magazine 2 by the pre-dowel pin system. For printing plate change a printing plate 1 is released from the disc magazine 2, by retracting the pre-dowel pins 21a, 21b. There are conveyors in contact with the printing plate 1. As conveyors are in the embodiment suckers 3 provided. But there are also transport wheels and other facilities possible. These grasp the pressure plate 1 and convey it from the disc magazine 2 in the direction of the open Clamping device 5. In this position, the lower clamping rail 51 is from the upper Retained clamping rail 52 and is located from the upper clamping rail 52 in the furthest away.

Innerhalb der Klemmeinrichtung 5 wird die Druckplatte 1 mit ihren Ausstanzungen 12a; 12b auf die Passstifte 54a; 54b gefahren. Liegt die Druckplatte 1 in der registergerechten Soll-Lage (siehe Figur 2) ist der Kontakt durch die elektrisch leitende Druckplatte 1 zwischen dem Passstift 54a und dem Passstift 54b geschlossen. In einer anderen Ausführungsform des Druckplatten-Erkennungssystems werden die Kontaktstellen Passstift 54a/Ausstanzung 12a und Passstift 54b/Ausstanzung 12b unabhängig voneinander abgefragt. Damit kann unterschieden werden, ob eine Anlage an beiden Kontaktstellen, an einer der Kontaktstellen oder an keiner der Kontaktstellen gegeben ist.Within the clamping device 5, the pressure plate 1 with their punched-12a; 12b on the dowel pins 54a; 54b driven. Is the printing plate 1 in the register-oriented desired position (see Figure 2) is the contact through the electrically conductive pressure plate 1 between the dowel pin 54a and the dowel pin 54b closed. In another embodiment of the Pressure plate recognition system, the contact points dowel pin 54a / punch 12a and dowel pin 54b / punch 12b interrogated independently. This can be differentiated whether an attachment at both contact points, at one of the contact points or is given at any of the contact points.

Ist die registergerechte Soll-Lage analog Figur 2 erreicht, wird ein Signal an die Steuerung der Druckmaschine generiert und damit die Klemmeinrichtung 5 geschlossen. Die weiteren Schritte zum Spannen der Druckplatte 1 können nun eingeleitet werden.If the register-oriented desired position is achieved analogously to FIG. 2, a signal is sent to the controller the printing press generated and thus the clamping device 5 is closed. The others Steps for tensioning the printing plate 1 can now be initiated.

Kommt kein Signal, das die registergerechte Anlage der Druckplatte 1 signalisiert, liegt die Druckplatte 1 in einer der in den Figuren 3 oder 4 dargestellten Lage zu den Passstiften 54a, 54b. Wenn, wie in der Figur 3 dargestellt, die Druckplatte 1 keinen Kontakt zu den Passstiften 54a; 54b hat, so kann das daran liegen, dass zum Beispiel die Klemmeinrichtung 5 nicht geöffnet oder der Plattenzylinder 4 nicht exakt positioniert ist. Tritt einer dieser beiden Fälle ein, dann wird abgefragt, ob das Fördermittel seine Funktion erfüllt, das heißt, ob das Fördermittel tatsächlich die Druckplatte 1 erfasst hat und diese fördern kann. Das kann konkret bedeuten, dass zum Beispiel der Wert des Unterdrucks der Sauger 3 kontrolliert wird. If there is no signal that signals the registration of the printing plate 1, which is in register, is the Pressure plate 1 in one of the position shown in Figures 3 or 4 to the dowel pins 54a, 54b. If, as shown in Figure 3, the pressure plate 1 no contact with the Dowel pins 54a; 54b, it may be because, for example, the clamping device 5 not open or the plate cylinder 4 is not exactly positioned. Join one of these two Cases, then it is queried whether the funding fulfills its function, that is, whether the Conveying has actually detected the pressure plate 1 and can promote this. That can be concrete mean that, for example, the value of the negative pressure of the suckers 3 is controlled.

Ist hier eine Unregelmäßigkeit gegeben, dann muss manuell in den Ablauf des Druckplatten-Wechsels eingegriffen werden.If there is an irregularity here, then must manually in the expiration of the printing plate change be intervened.

Ist das nicht der Fall, dann wird die Druckplatte 1 durch die Sauger 3 wieder zurück in das Plattenmagazin 2 gefördert. Dabei ist der Kontakt zwischen dem Sauger 3 und der Druckplatte 1 in keiner Phase unterbrochen, das heißt, bis zu diesem Zeitpunkt bleibt der Sauger 3 mit der Druckplatte 1 in Kontakt . Erst im Plattenmagazin 2 wird die Druckplatte 1 abgelegt. Die Ablage erfolgt wiederum auf den Vor-Passstiften 21a, 21b. Die Druckplatte 1 hat nunmehr Gelegenheit, sich erneut zu positionieren und kann für einen zweiten, wenn erforderlich auch für weitere Versuche aus dem Plattenmagazin 2 entnommen werden.If this is not the case, then the pressure plate 1 by the sucker 3 back into the Disk magazine 2 promoted. In this case, the contact between the sucker 3 and the pressure plate 1 interrupted in any phase, that is, until this time, the sucker remains 3 with the pressure plate 1 in contact. Only in the disk magazine 2, the pressure plate 1 is stored. The filing takes place again on the pre-dowel pins 21a, 21b. The printing plate 1 now has Opportunity to reposition yourself and may for a second if required also be taken for further experiments from the disk magazine 2.

Ist durch diese Maßnahme eine registerrechte Anlage nicht zu erzielen und die Passstifte 54a, 54b erkennen die Druckplatte 1 nicht, so wird alternativ zu der oben beschriebenen Maßnahme folgendes Verfahren durchgeführt:If a registerable system can not be achieved by this measure and the dowel pins 54a, 54b do not recognize the pressure plate 1, so will be an alternative to the above-described measure the following procedure is carried out:

Der Kontakt zwischen dem Sauger 3 und der Druckplatte 1 wird unterbrochen und der Sauger 3 fährt ohne Druckplatte 1 in seine Ausgangsstellung zurück. Externe Mittel zum Bewegen der Druckplatte 1 werden mit dieser in Verbindung gebracht und fördern die Druckplatte 1 auf die Klemmeinrichtung 5. Diese externen Mittel können zum Beispiel gummierte Rollen oder Förderbänder sein, die mit der Druckplatte 1 in Kontakt gebracht werden und diese in Richtung der Klemmeinrichtung 5 fördern.The contact between the sucker 3 and the pressure plate 1 is interrupted and the sucker 3 moves back to its original position without pressure plate 1. External means of moving the printing plate 1 are associated with this and promote the printing plate 1 on the clamping device 5. These external means can be gummed, for example Rollers or conveyor belts, which are brought into contact with the pressure plate 1 and promote them in the direction of the clamping device 5.

Nach dieser Maßnahme erfolgt dann eine wiederholte Prüfung der Lage der Druckplatte 1. Ist die Soll-Lage nicht erreicht, wird dieser Vorgang wiederholt. Nach einer definitiv festgelegten Anzahl aufeinander folgender Fehlversuche wird dann abgebrochen und der Drucker muss manuell in den Handlungsablauf eingreifen.After this measure, then a repeated examination of the position of the printing plate 1. Ist the target position is not reached, this process is repeated. After a definite Number of consecutive failed attempts is then canceled and the printer must manually intervene in the action.

Eine andere Möglichkeit besteht darin, nicht die Druckplatte 1 in Richtung der Klemmeinrichtung 5 zu verbringen, sondern die Klemmeinrichtung 5 selbst in Richtung der Druckplatte 1 zu bewegen. Das kann dadurch erfolgen, dass die Klemmeinrichtung 5 durch einen hier nicht dargestellten Mechanismus aus dem Umfang des Plattenzylinder 4 heraus in Richtung der Druckplatte 1 bewegt wird. Es ist aber auch möglich, den Plattenzylinder 4 zu drehen und so den Plattenzylinder 4 einschließlich der Klemmeinrichtung 5 zur Druckplatte 1 zu führen. Auch hier wird nach einer endlichen Anzahl von Fehlversuchen abgebrochen.Another possibility is not the pressure plate 1 in the direction of the clamping device 5, but the clamping device 5 itself in the direction of the pressure plate 1 to move. This can be done by the clamping device 5 by a here not shown mechanism from the periphery of the plate cylinder 4 out in the direction the printing plate 1 is moved. But it is also possible to rotate the plate cylinder 4 and so as to guide the plate cylinder 4 including the clamping device 5 to the printing plate 1. Again, after a finite number of failed attempts aborted.

Welche der oben beschriebenen Varianten letztendlich die geeignete ist, wird durch je die konstruktionstechnischen und technologischen Gegebenheiten entschieden. Entscheidend ist, dass nach der Erfindung eine Relativbewegung zwischen der Druckplatte 1 und der Klemmeinrichtung 5 erzeugt wird.Which of the variants described above is ultimately the most suitable, by each Design and technological conditions decided. It is crucial that according to the invention, a relative movement between the pressure plate 1 and the Clamping device 5 is generated.

Eine weitere Ausführungsform der Erfindung besteht darin, durch an sich bekannte Mittel nach Lösen der Sauger 3 die Druckplatte 1 oder auch die Klemmeinrichtung 5 durch geeignete elektromagnetische oder pneumatische Mittel in Vibration zu versetzen und nach einer angemessenen Zeitspanne die Lage der Druckplatte 1 erneut zu prüfen. Auch hier können mehrere Versuche erforderlich sein.Another embodiment of the invention is by means known per se after loosening the sucker 3, the pressure plate 1 or the clamping device 5 by suitable electromagnetic or pneumatic means to vibrate and after a reasonable time to recheck the position of the printing plate 1. Again, you can several attempts will be required.

In einer weiteren Ausgestaltung werden die oben beschriebenen Maßnahmen miteinander kombiniert. So kann nach dem Loslassen der Sauger 3 die Druckplatte 1 in Vibration versetzt werden und gleichzeitig die Klemmeinrichtung 5 mit oder ohne den Plattenzylinder 4 mehrmals in Richtung der Druckplatte 1 geführt werden.In a further embodiment, the measures described above become one with another combined. Thus, after releasing the sucker 3, the pressure plate 1 is vibrated and at the same time the clamping device 5 with or without the plate cylinder 4 several times be guided in the direction of the printing plate 1.

Ist nach den oben beschriebenen Maßnahmen durch die Passstifte 54a und 54b die registergerechte Soll-Lage der Druckplatte 1 erreicht, wird im Zuge des weiteren Verfahrensablaufs die Klemmeinrichtung 5 geschlossen. Der Plattenzylinder 4 beginnt sich zu drehen, wobei eine nicht dargestellte Walze an dessen Umfang angestellt wird. Diese Walze bügelt die Druckplatte 1 auf den Plattenzylinder 4 und sorgt für deren glatte Auflage an der Oberfläche des Plattenzylinders 4. Zum Abschluss des Aufbügelvorganges wird die Druckplatte 1 in die Klemm- und Spanneinrichtung 6 gedrückt, dort erfasst und geklemmt. Ein nicht dargestellter Mechanismus übt eine tangential gerichtete Kraft auf die Klemmschienen der Spanneinrichtung aus, so dass dadurch die Druckplatte 1 gespannt wird. Is according to the measures described above by the dowel pins 54a and 54b the register Target position of the printing plate 1 is achieved, in the course of the further procedure the clamping device 5 is closed. The plate cylinder 4 starts to rotate, wherein a roller, not shown, is employed at its periphery. This roller irons the Pressure plate 1 on the plate cylinder 4 and ensures their smooth contact with the surface of the plate cylinder 4. At the conclusion of the ironing process, the pressure plate 1 in the Clamping and clamping device 6 pressed, there detected and clamped. An unrepresented Mechanism exerts a tangentially directed force on the clamping rails of the clamping device out, so that thereby the pressure plate 1 is tensioned.

Aufstellung der verwendeten BezugszeichenList of used reference numbers

11
Druckplatteprinting plate
12a12a
Ausstanzungpunching
12b12b
Ausstanzungpunching
22
Plattenmagazindisk magazine
21a21a
Vor-PassstiftPre-alignment pin
21b21b
Vor-PassstiftPre-alignment pin
33
Saugersucker
44
Plattenzylinderplate cylinder
4141
PlattenzylinderkanalPlate cylinder channel
55
Klemmeinrichtungclamper
5151
untere Klemmschienelower clamping rail
5252
obere Klemmschieneupper clamping rail
54a54a
Passstiftdowel
54b54b
Passstiftdowel
66
Klemm- und SpanneinrichtungClamping and clamping device

Claims (6)

  1. Method for positionally accurate feeding of printing plates (1) from a plate magazine (2), in which the printing plate (1) is readied in the plate magazine and released therefrom for the purpose of printing plate exchange, brought by conveying means (3) between a clamping rail pair (51; 52), which is arranged in an axially parallel channel (41) of the plate cylinder (4), of a clamping device (5) and there the intended position of the printing plate (1) is checked by contact thereof with two checking points (54a; 54b) and, if the printing plate (1) has not reached the intended position in the clamping device (5), the conveying means (3) subsequently releases the printing plate (1), characterised in that the conveying means (3) travels back into its starting setting and printing plate (1) and clamping rails (51, 52) are brought into contact with one another by other suitable conveying means and/or the printing plate (1) or the clamping device (5) is set into vibration.
  2. Method for positionally accurate feeding of printing plates from a plate magazine according to claim 1, characterised in that these said means pick up the printing plate (1) and convey this into the intended position.
  3. Method for positionally accurate feeding of printing plates from a plate magazine according to claim 2, characterised in that rubberised rollers are provided as suitable for means for conveying the printing plates (1).
  4. Method for positionally accurate feeding of printing plates from a plate magazine according to claim 1, characterised in that the plate cylinders (4) inclusive of the clamping device (5) are moved counter to the feed direction of the printing plate (1).
  5. Method for positionally accurate feeding of printing plates from a plate magazine according to claim 1 and 4, characterised in that only the clamping device (5) is moved counter to the feed direction of the printing plate (1).
  6. Method for positionally accurate feeding of printing plates from a plate magazine according to claim 1, characterised in that the printing plate (1) or the clamping device (5) is excited into vibration by suitable electromagnetic or pneumatic means.
EP01100482A 2000-01-14 2001-01-09 Method for precisely feeding printing plates from a printing plate magazine Expired - Lifetime EP1116584B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10001320 2000-01-14
DE10001320A DE10001320A1 (en) 2000-01-14 2000-01-14 Method to supply printing plates from plate magazine with exact positioning; involves positioning printing plate in magazine and using suction conveying device between clamp rails in plate cylinder

Publications (2)

Publication Number Publication Date
EP1116584A1 EP1116584A1 (en) 2001-07-18
EP1116584B1 true EP1116584B1 (en) 2005-10-19

Family

ID=7627502

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01100482A Expired - Lifetime EP1116584B1 (en) 2000-01-14 2001-01-09 Method for precisely feeding printing plates from a printing plate magazine

Country Status (3)

Country Link
EP (1) EP1116584B1 (en)
AT (1) ATE307026T1 (en)
DE (2) DE10001320A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004042268A1 (en) * 2004-09-01 2006-03-02 Koenig & Bauer Ag Printing plate conveying method for printing machine, involves positioning printing plate in admission opening formed by terminal strips and conveying plate with notch by conveying strips to open position
DE102009012147A1 (en) 2008-03-27 2009-10-01 Heidelberger Druckmaschinen Ag Method and apparatus for feeding printing plates to a plate cylinder of a processing machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8915693U1 (en) * 1989-12-09 1991-03-07 Koenig & Bauer Ag, 8700 Wuerzburg, De
JPH08501037A (en) * 1992-09-18 1996-02-06 ケーニッヒ ウント バウエル アクチエンゲゼルシャフト Device for supplying and discharging plate

Also Published As

Publication number Publication date
DE10001320A1 (en) 2001-07-19
DE50107718D1 (en) 2005-11-24
EP1116584A1 (en) 2001-07-18
ATE307026T1 (en) 2005-11-15

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