EP0238804A2 - Device for attaching flexible printing forms to the plate cylinder of a rotary printing machine - Google Patents

Device for attaching flexible printing forms to the plate cylinder of a rotary printing machine Download PDF

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Publication number
EP0238804A2
EP0238804A2 EP87101191A EP87101191A EP0238804A2 EP 0238804 A2 EP0238804 A2 EP 0238804A2 EP 87101191 A EP87101191 A EP 87101191A EP 87101191 A EP87101191 A EP 87101191A EP 0238804 A2 EP0238804 A2 EP 0238804A2
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EP
European Patent Office
Prior art keywords
clamping
plate
rail
plate end
segments
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87101191A
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German (de)
French (fr)
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EP0238804A3 (en
EP0238804B1 (en
Inventor
Willi Jescke
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0238804A2 publication Critical patent/EP0238804A2/en
Publication of EP0238804A3 publication Critical patent/EP0238804A3/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
    • 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
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1231—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially tangential to support surface

Definitions

  • the invention relates to a device for clamping flexible printing plates on the plate cylinder of rotary printing presses with clamping rails, which are assigned to the two plate ends, which are supported for tensioning the printing plate on the side walls of a cylinder channel and with means for stretching or compressing the trailing plate end in Axial direction of the plate cylinder.
  • Such a device is known from DE-C 23 10 228, in which two tensioning rail pairs are assigned to the rear plate end, which enable the rear end of the pressure plate to be deformed by means of adjusting screws. These two pairs of clamping rails can be moved both in the circumferential direction for clamping the pressure plate and axially to the plate cylinder. This makes it possible, e.g. in so-called "tight printing", stretching the rear plate end so that an exact register can be achieved. Due to the division of the rear tensioning rail, it is difficult in practical handling to prevent the tensioning rail, which consists of several sections, from buckling.
  • the object is achieved in that a one-piece clamping rail is provided for the trailing plate end, that a clamping stamp for the plate end is arranged in the central region of the clamping rail and that clamping segments are provided in the outer region of the clamping rail can be operated to stretch or compress the plate end.
  • the tensioning rail Due to the one-piece design of the tensioning rail, a high stability of the same is achieved, so that it can be adjusted easily both in the circumferential direction for tensioning the pressure plate and laterally. This also ensures a uniform clamping of the printing plate, with stretching or compression of the trailing plate end being carried out over the clamping segments in the tensioned state thereof.
  • the clamping stamp provided in the middle area prevents the plate end from being moved unintentionally, so that the set register is retained with certainty.
  • the arrangement of the tensioning segments in the outer area of the tensioning rails causes the plate end to be compressed or stretched in a very long area, so that the same is prevented from bulging or tearing.
  • FIG. 1 of a plate cylinder 1 of a sheetfed offset printing press carries in a known manner a flexible printing plate 2 which is stretched over clamping means.
  • a cylinder channel 3 which extends over the length of the cylinder body of the plate cylinder 1, serves to receive the clamping means.
  • the leading plate end 4 and the trailing plate end 5 are angled in a bending device in register.
  • the leading plate end 4 is suspended for tensioning on a tensioning rail 6 and held by a spring 7.
  • Dowel pins 8 are used for exact alignment of the front plate end 4. As soon as the front plate end 4 is clamped, the plate cylinder is rotated one turn to place the pressure plate 2, so that the trailing plate end 5 can also be hung on a tensioning rail 9.
  • a clamping stamp 10 is provided, which is preferably made of polyurethane and can be adjusted and clamped to the angled area of the trailing plate end 5 by means of adjusting screws 11, which are supported on the tensioning rail 9 via a bearing 12. Then the pressure plate 2 is clamped on the plate cylinder 1 via compression springs 13, so that the two clamping rails 6 and 9 are moved into the position shown in FIG. Here, the two plate ends 4 and 5 are under a cover plate 14, which is an out prevents the same from sliding.
  • the relaxed position of the tensioning rail 6 is indicated by dash-dotted lines in FIG. 1.
  • FIGS. 2 and 3 show the clamping segments 15 provided on both sides of the clamping rail 9 in the outer region, which are pivotably attached to the clamping rail 9 via bearing bolts 16.
  • the clamping segments 15 are provided towards the plate end 5 with a clamping surface 17 which runs eccentrically to the bearing pin 16 and which has a neutral central position (as shown). If the clamping segment 15 is pivoted to the right or left, the plate end 5 is first clamped by the eccentric design of the clamping surface 17 and then moved by a small amount in the axial direction, so that the plate end 5 is stretched or compressed.
  • the slope of the eccentric clamping surface 17 increases the force for the clamping during stretching and upsetting and is self-locking.
  • an actuating means engages on the clamping segment 15, by means of which the lateral pivoting thereof can be carried out.
  • this adjusting means is an adjusting screw that can be turned by hand.
  • the pivoting was provided in Figures 2 to 4 via an actuator 19, which causes a pivoting of the clamping segment 15 via a thread 20 and a fork lever 21.
  • the stretching or compression of the plate end 5 is carried out at a standstill and, in the case of motorized adjustment, during the standstill or when the machine is running.
  • their clamping surfaces 17 can be coated with a sharp-edged corundum coating.
  • a pressure bearing 22 is provided opposite the clamping surface 17 of the clamping segment 15 below the plate end 5, which is fastened by screws 23 in a recess 24 in the clamping rail 9.
  • This thrust bearing can consist of polyurethane and have 15 slots 25 transverse to the direction of movement of the clamping segments. These support the lateral movement of the plate end 5 when stretching or compressing the same.
  • FIG. 4 shows a different type of thrust bearing 26, which serves the same purpose but is mounted on needle bearings 27.
  • the pressure bearing 26 is held in the recess 29 in a longitudinally displaceable manner by means of brackets 28.
  • the two clamping segments 15 are normally pivoted evenly by a small amount. This amount is based on the corresponding correction of the trailing plate end.
  • a one-sided correction can also be carried out by actuating only one clamping segment 15. Regardless of this, due to the stable, one-piece mounting of the tensioning rail 9, any desired adjustment thereof can be carried out by the printer without this resulting in an undesired impairment of the tensioning quality.

Abstract

Die Erfindung bezieht sich auf eine Vorrichtung zum Aufspannen von biegsamen Druckplatten (2) auf dem Plattenzylinder (1) von Rotationsdruckmaschinen, mit Spannschienen (6, 9), die den beiden Plattenenden (4, 5) zugeordnet sind, wobei eine durchgehende Spannschiene (9) vorgesehen ist, die sowohl das Spannen als auch das Strecken oder Stauchen des nachlaufenden Plattenendes (5) auf einfache Weise ermöglicht, ohne daß die praktische Handhabung beeinträchtigt ist.The invention relates to a device for clamping flexible printing plates (2) on the plate cylinder (1) of rotary printing machines, with clamping rails (6, 9) which are assigned to the two plate ends (4, 5), a continuous clamping rail (9 ) is provided, which enables both the tensioning and the stretching or upsetting of the trailing plate end (5) in a simple manner without impairing practical handling.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Auf­spannen von biegsamen Druckplatten auf dem Plattenzylinder von Rotationsdruckmaschinen mit Spannschienen, die den beiden Plattenenden zugeordnet sind, die zur Spannung der Druckplatte an den Seitenwänden eines Zylinderkanals abge­stützt sind und mit Mitteln zum Strecken oder Stauchen des nachlaufenden Plattenendes in Achsrichtung des Plattenzy­linders.The invention relates to a device for clamping flexible printing plates on the plate cylinder of rotary printing presses with clamping rails, which are assigned to the two plate ends, which are supported for tensioning the printing plate on the side walls of a cylinder channel and with means for stretching or compressing the trailing plate end in Axial direction of the plate cylinder.

Eine derartige Vorrichtung ist aus der DE-C 23 10 228 bekannt, bei der dem hinteren Plattenende zwei Spannschie­nenpaare zugeordnet sind, die über Stellschrauben eine Verformung des hinteren Endes der Druckplatte ermöglichen. Diese beiden Spannschienenpaare lassen sich sowohl in Umfangsrichtung zum Spannen der Druckplatte als auch axial zum Plattenzylinder bewegen. Hiermit ist es möglich, z.B. beim sogenannten "Engerdrucken", das hintere Plattenende zu strecken, so daß ein exakter Passer erreicht werden kann. Durch die Teilung der hinteren Spannschiene ist es bei der praktischen Handhabung jedoch schwierig, ein Ausknicken der aus mehreren Teilstücken bestehenden Spannschiene zu ver­hindern.Such a device is known from DE-C 23 10 228, in which two tensioning rail pairs are assigned to the rear plate end, which enable the rear end of the pressure plate to be deformed by means of adjusting screws. These two pairs of clamping rails can be moved both in the circumferential direction for clamping the pressure plate and axially to the plate cylinder. This makes it possible, e.g. in so-called "tight printing", stretching the rear plate end so that an exact register can be achieved. Due to the division of the rear tensioning rail, it is difficult in practical handling to prevent the tensioning rail, which consists of several sections, from buckling.

Ausgehend von diesem Stand der Technik ist es die Aufgabe der Erfindung, eine Vorrichtung zum Aufspannen von biegsa­men Druckplatten auf dem Plattenzylinder so auszubilden, daß sowohl das Spannen als auch das Strecken oder Stauchen des nachlaufenden Plattenendes auf einfache Weise durchge­ führt werden kann, ohne daß die praktische Handhabung beeinträchtigt ist.Based on this prior art, it is the object of the invention to provide a device for clamping flexible printing plates on the plate cylinder in such a way that both the clamping and the stretching or compression of the trailing plate end are carried out in a simple manner can be performed without impairing practical handling.

Gemäß dem Kennzeichen des Anspruches 1 wird die Aufgabe dadurch gelöst, daß für das nachlaufende Plattenende eine einteilige Spannschiene vorgesehen ist, daß auf der Spann­schiene in ihrem mittleren Bereiche ein Klemmstempel für das Plattenende angeordnet ist und daß im äußeren Bereich der Spannschiene Spannsegmente vorgesehen sind, die zum Strecken oder Stauchen des Plattenendes betätigbar sind.According to the characterizing part of claim 1, the object is achieved in that a one-piece clamping rail is provided for the trailing plate end, that a clamping stamp for the plate end is arranged in the central region of the clamping rail and that clamping segments are provided in the outer region of the clamping rail can be operated to stretch or compress the plate end.

Durch die einteilige Ausbildung der Spannschiene wird eine hohe Stabilität derselben erreicht, so daß sie sowohl in Umfangsrichtung zum Spannen der Druckplatte als auch seit­lich problemlos zu verstellen ist. Hierdurch wird auch eine gleichmäßige Aufspannung der Druckplatte gewährleistet, wobei sich im gespannten Zustand derselben über die Spann­segmente ein Strecken oder Stauchen des nachlaufenden Plattenendes durchführen läßt. Der im mittleren Bereich vorgesehene Klemmstempel verhindert ein ungewolltes seit­liches Verschieben des Plattenendes, so daß das eingestell­te Register mit Sicherheit erhalten bleibt. Durch die Anordnung der Spannsegmente im äußeren Bereich der Spann­schienen erfolgt das Stauchen oder Strecken des Plattenen­des in einem sehr langen Bereich, so daß ein Auswölben oder Einreißen desselben verhindert wird.Due to the one-piece design of the tensioning rail, a high stability of the same is achieved, so that it can be adjusted easily both in the circumferential direction for tensioning the pressure plate and laterally. This also ensures a uniform clamping of the printing plate, with stretching or compression of the trailing plate end being carried out over the clamping segments in the tensioned state thereof. The clamping stamp provided in the middle area prevents the plate end from being moved unintentionally, so that the set register is retained with certainty. The arrangement of the tensioning segments in the outer area of the tensioning rails causes the plate end to be compressed or stretched in a very long area, so that the same is prevented from bulging or tearing.

Die Unteransprüche kennzeichnen vorteilhafte Ausgestaltun­gen der Erfindung, die unter Verwendung von einfachen Mitteln ein sicheres und leichtes Handhaben der Vorrichtung gewährleisten.The sub-claims characterize advantageous embodiments of the invention, which ensure safe and easy handling of the device using simple means.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnun­gen schematisch dargestellt.
Es zeigt :

  • Fig. 1 einen Teilquerschnitt durch die erfindungsgemäße Vorrichtung gemäß Schnitt 1.1 in Fig. 4,
  • Fig. 2 einen Teilquerschnitt gemäß Schnitt 2.2 in Fig. 4,
  • Fig. 3 eine Teildraufsicht auf die seitliche Spannvor­richtung,
  • Fig. 4 eine Draufsicht auf den Plattenzylinder mit der erfindungsgemäßen Vorrichtung.
An embodiment of the invention is shown schematically in the drawings.
It shows :
  • 1 shows a partial cross section through the device according to the invention according to section 1.1 in FIG. 4,
  • 2 shows a partial cross section according to section 2.2 in FIG. 4,
  • 3 is a partial plan view of the lateral tensioning device,
  • Fig. 4 is a plan view of the plate cylinder with the device according to the invention.

Der in Figur 1 wiedergegebene Teilquerschnitt eines Plat­tenzylinders 1 einer Bogenoffsetdruckmaschine trägt in bekannter Weise eine biegsame Druckplatte 2, die über Spannmittel gespannt wird. Zur Aufnahme der Spannmittel dient ein Zylinderkanal 3, der sich über die Länge des Zylinderkörpers des Plattenzylinders 1 erstreckt. Das vorlaufende Plattenende 4 und das nachlaufende Plattenen­de 5 sind in einer Biegevorrichtung passerhaltig abgewin­kelt. Das vorlaufende Plattenende 4 wird zum Spannen an einer Spannschiene 6 eingehängt und von einer Feder 7 gehalten. Zur exakten Ausrichtung des vorderen Plattenen­des 4 dienen Paßstifte 8. Sobald das vordere Plattenende 4 eingespannt ist, wird der Plattenzylinder zum Auflegen der Druckplatte 2 eine Umdrehung verdreht, so daß das nachlau­fende Plattenende 5 ebenfalls an einer Spannschiene 9 eingehängt werden kann. Im mittleren Bereich der Spann­schiene 9 ist ein Klemmstempel 10 vorgesehen, der vorzugs­weise aus Polyurethan besteht und mittels Stellschrau­ben 11, die sich über ein Lager 12 an der Spannschiene 9 abstützen, an den abgewinkelten Bereich des nachlaufenden Plattenendes 5 anstellbar ist und dieses festklemmt. Danach erfolgt das Festspannen der Druckplatte 2 auf dem Platten­zylinder 1 über Druckfedern 13, so daß die beiden Spann­schienen 6 und 9 in die in Figur 1 gezeichnete Stellung bewegt werden. Hierbei befinden sich die beiden Plattenen­den 4 und 5 unter einer Abdeckplatte 14, die ein Heraus­ gleiten derselben verhindert. Die entspannte Stellung der Spannschiene 6 ist strichpunktiert in Fig. 1 angedeutet.The partial cross section shown in FIG. 1 of a plate cylinder 1 of a sheetfed offset printing press carries in a known manner a flexible printing plate 2 which is stretched over clamping means. A cylinder channel 3, which extends over the length of the cylinder body of the plate cylinder 1, serves to receive the clamping means. The leading plate end 4 and the trailing plate end 5 are angled in a bending device in register. The leading plate end 4 is suspended for tensioning on a tensioning rail 6 and held by a spring 7. Dowel pins 8 are used for exact alignment of the front plate end 4. As soon as the front plate end 4 is clamped, the plate cylinder is rotated one turn to place the pressure plate 2, so that the trailing plate end 5 can also be hung on a tensioning rail 9. In the central area of the tensioning rail 9, a clamping stamp 10 is provided, which is preferably made of polyurethane and can be adjusted and clamped to the angled area of the trailing plate end 5 by means of adjusting screws 11, which are supported on the tensioning rail 9 via a bearing 12. Then the pressure plate 2 is clamped on the plate cylinder 1 via compression springs 13, so that the two clamping rails 6 and 9 are moved into the position shown in FIG. Here, the two plate ends 4 and 5 are under a cover plate 14, which is an out prevents the same from sliding. The relaxed position of the tensioning rail 6 is indicated by dash-dotted lines in FIG. 1.

In Figur 2 und 3 sind die beiderseits der Spannschiene 9 im äußeren Bereich vorgesehenen Spannsegmente 15 wiedergege­ben, die über Lagerbolzen 16 schwenkbar an der Spannschie­ne 9 befestigt sind. Die Spannsegmente 15 sind zum Platten­ende 5 hin mit einer exzentrisch zum Lagerbolzen 16 verlau­fenden Klemmfläche 17 versehen, die eine neutrale Mittel­stellung aufweist (wie gezeichnet). Wird das Spannseg­ment 15 nach rechts oder links verschwenkt, so wird durch die exzentrische Ausbildung der Klemmfläche 17 zunächst das Plattenende 5 festgeklemmt und anschließend um einen gerin­gen Betrag in axialer Richtung bewegt, so daß ein Strecken oder Stauchen des Plattenendes 5 erfolgt. Die Steigung der exzentrischen Klemmfläche 17 bewirkt eine Kraftverstärkung für die Klemmung beim Strecken und Stauchen und wirkt selbsthemmend.FIGS. 2 and 3 show the clamping segments 15 provided on both sides of the clamping rail 9 in the outer region, which are pivotably attached to the clamping rail 9 via bearing bolts 16. The clamping segments 15 are provided towards the plate end 5 with a clamping surface 17 which runs eccentrically to the bearing pin 16 and which has a neutral central position (as shown). If the clamping segment 15 is pivoted to the right or left, the plate end 5 is first clamped by the eccentric design of the clamping surface 17 and then moved by a small amount in the axial direction, so that the plate end 5 is stretched or compressed. The slope of the eccentric clamping surface 17 increases the force for the clamping during stretching and upsetting and is self-locking.

Über einen Bolzen 18 greift an dem Spannsegment 15 ein Stellmittel an, über das die seitliche Verschwenkung des­selben durchgeführt werden kann. In einer einfachen Aus­führung handelt es sich bei diesen Stellmittel um eine Stellschraube, die von Hand verdreht werden kann. Demgegen­über wurde in den Figuren 2 bis 4 die Verschwenkung über einen Stellmotor 19 vorgesehen, der über ein Gewinde 20 und einen Gabelhebel 21 ein Verschwenken des Spannsegmentes 15 bewirkt. Bei manueller Verstellung wird das Strecken bzw. Stauchen des Plattenendes 5 im Stillstand und bei motori­scher Verstellung während des Stillstands oder Laufs der Maschine durchgeführt. Um eine exakte Verstellung der Spannsegmente 15 zu gewährleisten, können deren Klemm­flächen 17 mit einem scharfkantigen Korundbelag beschichtet sein.Via a bolt 18, an actuating means engages on the clamping segment 15, by means of which the lateral pivoting thereof can be carried out. In a simple version, this adjusting means is an adjusting screw that can be turned by hand. In contrast, the pivoting was provided in Figures 2 to 4 via an actuator 19, which causes a pivoting of the clamping segment 15 via a thread 20 and a fork lever 21. In the case of manual adjustment, the stretching or compression of the plate end 5 is carried out at a standstill and, in the case of motorized adjustment, during the standstill or when the machine is running. In order to ensure an exact adjustment of the clamping segments 15, their clamping surfaces 17 can be coated with a sharp-edged corundum coating.

In Figur 3 ist gegenüber der Klemmfläche 17 des Spannseg­mentes 15 unterhalb des Plattenendes 5 ein Drucklager 22 vorgesehen, das über Schrauben 23 in einer Ausnehmung 24 in der Spannschiene 9 befestigt ist. Dieses Drucklager kann aus Polyurethan bestehen und quer zur Bewegungsrichtung der Spannsegmente 15 Schlitze 25 aufweisen. Diese unterstützen die seitliche Bewegung des Plattenendes 5 beim Strecken oder Stauchen desselben.In Figure 3, a pressure bearing 22 is provided opposite the clamping surface 17 of the clamping segment 15 below the plate end 5, which is fastened by screws 23 in a recess 24 in the clamping rail 9. This thrust bearing can consist of polyurethane and have 15 slots 25 transverse to the direction of movement of the clamping segments. These support the lateral movement of the plate end 5 when stretching or compressing the same.

In Figur 4 ist ein andersartiges Drucklager 26 wiedergege­ben, das dem selben Zweck dient, aber auf Nadellagern 27 gelagert ist. Über Halterungen 28 wird das Drucklager 26 in der Ausnehmung 29 längsverschiebbar festgehalten.FIG. 4 shows a different type of thrust bearing 26, which serves the same purpose but is mounted on needle bearings 27. The pressure bearing 26 is held in the recess 29 in a longitudinally displaceable manner by means of brackets 28.

Bei der wiedergegebenen Ausführung werden im Normalfall die beiden Spannsegmente 15 gleichmäßig um einen geringen Betrag verschwenkt. Dieser Betrag richtet sich nach der entsprechenden Korrektur des nachlaufenden Plattenendes. Durch die Einklemmung desselben über den Klemmstempel 10 läßt sich, falls erforderlich, auch eine einseitige Korrek­tur durch Betätigung von nur einem Spannsegment 15 durch­führen. Unabhängig hiervon läßt sich aufgrund der stabilen einteiligen Lagerung der Spannschiene 9 jede gewünschte Verstellung derselben durch den Drucker vornehmen, ohne daß hierdurch eine ungewollte Beeinträchtigung der Spannquali­tät erfolgt.In the embodiment shown, the two clamping segments 15 are normally pivoted evenly by a small amount. This amount is based on the corresponding correction of the trailing plate end. By clamping the same via the clamping stamp 10, if necessary, a one-sided correction can also be carried out by actuating only one clamping segment 15. Regardless of this, due to the stable, one-piece mounting of the tensioning rail 9, any desired adjustment thereof can be carried out by the printer without this resulting in an undesired impairment of the tensioning quality.

TeilelisteParts list

  • 1 Plattenzylinder1 plate cylinder
  • 2 Druckplatte2 pressure plate
  • 3 Zylinderkanal3 cylinder channel
  • 4 Plattenende4 plate ends
  • 5 Plattenende5 plate end
  • 6 Spannschine6 tensioning rails
  • 7 Feder7 spring
  • 8 Paßstift8 dowel pin
  • 9 Spannschiene9 tensioning rail
  • 10 Klemmstempel10 clamp stamps
  • 11 Stellschrauben11 set screws
  • 12 Lager12 bearings
  • 13 Druckfedern13 compression springs
  • 14 Abdeckplatte14 cover plate
  • 15 Spannsegment15 clamping segment
  • 16 Lagerbolzen16 bearing bolts
  • 17 Klemmfläche17 clamping surface
  • 18 Bolzen18 bolts
  • 19 Stellmotor19 servomotor
  • 20 Gewinde20 threads
  • 21 Gabelhebel21 fork lever
  • 22 Drucklager22 thrust bearings
  • 23 Schrauben23 screws
  • 24 Ausnehmung24 recess
  • 25 Schlitze25 slots
  • 26 Drucklager26 thrust bearings
  • 27 Nadellager27 needle bearings
  • 28 Halterungen28 brackets
  • 29 Ausnehmung29 recess

Claims (8)

1. Vorrichtung zum Aufspannen von biegsamen Druckplatten auf dem Plattenzylinder von Rotationsdruckmaschinen mit Spannschienen, die den beiden Plattenenden zugeordnet sind, wobei die Spannschienen zur Spannung der Druck­platte an den Seitenwänden eines Zylinderkanals abge­stützt sind und mit Mitteln zum Strecken oder Stauchen vorzugsweise des nachlaufenden Plattenendes in Achs­richtung des Plattenzylinders,
dadurch gekennzeichnet,
daß für das nachlaufende Plattenende (5) eine eintei­lige Spannschiene (9) vorgesehen ist, daß auf der Spannschiene (9) in ihrem mittleren Bereich ein Klemm­stempel (10) für das Plattenende (5) angeordnet ist und daß im äußeren Bereich der Spannschiene (9) Spannseg­mente (15) vorgesehen sind, die zum Strecken oder Stauchen des Plattenendes (5) betätigbar sind.1.Device for clamping flexible printing plates on the plate cylinder of rotary printing presses with clamping rails, which are assigned to the two plate ends, the clamping rails for supporting the printing plate being supported on the side walls of a cylinder channel and with means for stretching or compressing the trailing plate end, preferably in the axial direction the plate cylinder,
characterized by
that a one-piece clamping rail (9) is provided for the trailing plate end (5), that a clamping stamp (10) for the plate end (5) is arranged in the central region of the clamping rail (9) and that in the outer region of the clamping rail (9 ) Clamping segments (15) are provided which can be actuated for stretching or compressing the plate end (5). 2. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die Spannsegmente (15) über Lagerbolzen (16) an der Spannschiene (9) schwenkbar befestigt sind und exzen­trisch zum Lagerbolzen (16) verlaufende Klemmflä­chen (17) für das Druckplattenende (5) aufweisen.2. Device according to claim 1,
characterized by
that the clamping segments (15) are pivotally attached to the clamping rail (9) by means of bearing bolts (16) and have clamping surfaces (17) for the pressure plate end (5) which extend eccentrically to the bearing bolt (16). 3. Vorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet,
daß die Spannsegmente (15) mittels Stellmotoren (19) verschwenkbar sind, die an der Spannschiene (9) schwenkbar gelagert sind.3. Device according to claim 1 and 2,
characterized by
that the clamping segments (15) can be pivoted by means of servomotors (19) which are pivotably mounted on the clamping rail (9). 4. Vorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet,
daß gegenüber den Klemmflächen (17) der Spannsegmen­ te (15) in der Spannschiene (9) Drucklager (22,26) eingelassen sind, die die axiale Bewegung des Platten­endes (5) unterstützen.4. Apparatus according to claim 1 and 2,
characterized by
that opposite the clamping surfaces (17) of the clamping segments te (15) in the clamping rail (9) thrust bearing (22,26) are inserted, which support the axial movement of the plate end (5). 5. Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet,
daß die Drucklager (22) aus Polyurethan bestehen und quer zur Bewegungsrichtung der Spannsegmente (15) Schlitze (25) aufweisen.5. The device according to claim 4,
characterized by
that the thrust bearings (22) consist of polyurethane and have slots (25) transverse to the direction of movement of the clamping segments (15). 6. Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet,
daß die Drucklager (26) auf Nadellagern (27) axial zum Plattenzylinder (1) verschiebbar gelagert sind.6. The device according to claim 4,
characterized by
that the thrust bearing (26) on needle bearings (27) are axially displaceable to the plate cylinder (1). 7. Vorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet,
daß die Klemmflächen (17) der Spannsegmente (15) mit einem scharfkantigen Korundbelag beschichtet sind.7. The device according to claim 1 and 2,
characterized by
that the clamping surfaces (17) of the clamping segments (15) are coated with a sharp-edged corundum coating. 8. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der Klemmstempel (10) aus Polyurethan besteht und mittels Stellschrauben (11), die sich über ein La­ger (12) an der Spannschiene (9) abstützen, anstellbar ist.8. The device according to claim 1,
characterized by
that the clamping punch (10) consists of polyurethane and can be adjusted by means of adjusting screws (11), which are supported on the tensioning rail (9) via a bearing (12).
EP87101191A 1986-02-27 1987-01-28 Device for attaching flexible printing forms to the plate cylinder of a rotary printing machine Expired - Lifetime EP0238804B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3606351 1986-02-27
DE19863606351 DE3606351A1 (en) 1986-02-27 1986-02-27 DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES

Publications (3)

Publication Number Publication Date
EP0238804A2 true EP0238804A2 (en) 1987-09-30
EP0238804A3 EP0238804A3 (en) 1989-11-08
EP0238804B1 EP0238804B1 (en) 1991-10-09

Family

ID=6295061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101191A Expired - Lifetime EP0238804B1 (en) 1986-02-27 1987-01-28 Device for attaching flexible printing forms to the plate cylinder of a rotary printing machine

Country Status (6)

Country Link
US (1) US4712476A (en)
EP (1) EP0238804B1 (en)
JP (1) JPS62199447A (en)
CN (1) CN87100585B (en)
CA (1) CA1280034C (en)
DE (2) DE3606351A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3806526A1 (en) * 1988-03-01 1989-09-14 Heidelberger Druckmasch Ag DEVICE FOR TENSIONING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES
GB2236709A (en) * 1989-10-14 1991-04-17 Heidelberger Druckmasch Ag Printing plate deformation apparatus
EP0426022A2 (en) * 1989-11-02 1991-05-08 MAN Roland Druckmaschinen AG Plate cylinder of a printing press
EP0534214A1 (en) * 1991-09-20 1993-03-31 Heidelberger Druckmaschinen Aktiengesellschaft Method and device for correcting trapezoidal register deviations
EP0557729A1 (en) * 1992-02-21 1993-09-01 MAN Roland Druckmaschinen AG Device for fixing a printing plate on a plate cylinder
GB2298392A (en) * 1995-03-03 1996-09-04 Heidelberger Druckmasch Ag Apparatus for tensioning printing formes on cylinders of rotary printing machines

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DE3728263A1 (en) * 1986-02-27 1989-03-09 Heidelberger Druckmasch Ag Device for attaching flexible printing formes to the forme cylinder of rotary printing machines
DE3866063D1 (en) * 1987-08-25 1991-12-12 Heidelberger Druckmasch Ag DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES.
DE3731684A1 (en) * 1987-09-21 1989-04-06 Koenig & Bauer Ag CLAMPING DEVICE
DE3918215C1 (en) * 1989-06-03 1990-11-08 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE3936458C1 (en) * 1989-11-02 1991-04-11 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE3936459C1 (en) * 1989-11-02 1991-04-18 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4034494C1 (en) * 1990-10-30 1992-03-05 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE4226565A1 (en) * 1991-08-16 1993-02-18 Koenig & Bauer Ag DEVICE FOR TENSIONING AND ADJUSTING BENDING PRINTING PLATES ON PLATE CYLINDERS OF ROTARY PRINTING MACHINES
US5317968A (en) * 1991-11-22 1994-06-07 Shinohara Machiner Co., Ltd. Plate cocking apparatus for sheet-fed printing press
DE4210897C1 (en) * 1992-04-02 1993-08-12 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
US5347928A (en) * 1992-10-29 1994-09-20 Sakurai Graphic Systems Corporation Plate clamping unit for offset press
WO1994029109A1 (en) * 1993-06-16 1994-12-22 Nissha Printing Co., Ltd. Print roll and elastic form plate for print roll
US5419248A (en) * 1994-03-09 1995-05-30 Heidelberg Druckmaschinen Ag Adjustable alignment device for printing plates
DE19515843C1 (en) * 1995-04-29 1996-06-27 Heidelberger Druckmasch Ag Clamp for printing plate on plate cylinder of rotary printer
US7271339B2 (en) * 2004-08-17 2007-09-18 Thomas & Betts International, Inc. Wall plate assembly
US20080148974A1 (en) * 2006-12-22 2008-06-26 Heidelberger Druckmaschinen Ag Printing Press with Printing Plate Manipulation Device
DE102008042703B4 (en) * 2008-10-09 2011-04-07 Koenig & Bauer Aktiengesellschaft Form cylinder of a printing press and a method for mounting at least one flexible printing plate
WO2013001010A2 (en) * 2011-06-30 2013-01-03 Koenig & Bauer Aktiengesellschaft Plate cylinder and a method for arranging a printing plate onto a plate cylinder
DE102012202078B3 (en) * 2012-02-13 2013-02-28 Koenig & Bauer Aktiengesellschaft Cylinder for rotary printing machine e.g. web-fed offset press rotary printing machine, has instep spindle whose extended length along axial direction is set less than length of bale portion along axial direction
CN103612481B (en) * 2013-10-30 2016-01-06 高斯图文印刷系统（中国）有限公司 A kind of forme tensioning air bag of printing machine
CN106183371A (en) * 2016-07-08 2016-12-07 江苏华宇印涂设备集团有限公司 Iron-printing machine plate cylinder

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FR2219847A1 (en) * 1973-03-01 1974-09-27 Heidelberger Druckmasch Ag
DE2431133A1 (en) * 1974-06-28 1976-01-15 Roland Offsetmaschf PRINT PLATE CLAMPING DEVICE
DE2501511A1 (en) * 1975-01-16 1976-07-22 Maschf Augsburg Nuernberg Ag DEVICE FOR FASTENING A FLEXIBLE PRINTING PLATE ON THE PLATE CYLINDER OF A ROTARY PRINTING MACHINE

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JPS57205152A (en) * 1981-06-13 1982-12-16 Komori Printing Mach Co Ltd Color register adjusting device for sheet printer
CH653616A5 (en) * 1983-07-26 1986-01-15 De La Rue Giori Sa METHOD FOR FIXING AND ADJUSTING A PRINTING PLATE ON A PLATE-HOLDING CYLINDER AND DEVICE FOR IMPLEMENTING SAME.

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Publication number Priority date Publication date Assignee Title
FR2219847A1 (en) * 1973-03-01 1974-09-27 Heidelberger Druckmasch Ag
DE2431133A1 (en) * 1974-06-28 1976-01-15 Roland Offsetmaschf PRINT PLATE CLAMPING DEVICE
DE2501511A1 (en) * 1975-01-16 1976-07-22 Maschf Augsburg Nuernberg Ag DEVICE FOR FASTENING A FLEXIBLE PRINTING PLATE ON THE PLATE CYLINDER OF A ROTARY PRINTING MACHINE

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3806526A1 (en) * 1988-03-01 1989-09-14 Heidelberger Druckmasch Ag DEVICE FOR TENSIONING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES
GB2236709A (en) * 1989-10-14 1991-04-17 Heidelberger Druckmasch Ag Printing plate deformation apparatus
GB2236709B (en) * 1989-10-14 1993-10-20 Heidelberger Druckmasch Ag Printing plate deformation apparatus
EP0426022A2 (en) * 1989-11-02 1991-05-08 MAN Roland Druckmaschinen AG Plate cylinder of a printing press
EP0426022A3 (en) * 1989-11-02 1991-09-18 Man Miller Druckmaschinen Gmbh Plate cylinder of a printing press
EP0534214A1 (en) * 1991-09-20 1993-03-31 Heidelberger Druckmaschinen Aktiengesellschaft Method and device for correcting trapezoidal register deviations
EP0557729A1 (en) * 1992-02-21 1993-09-01 MAN Roland Druckmaschinen AG Device for fixing a printing plate on a plate cylinder
GB2298392A (en) * 1995-03-03 1996-09-04 Heidelberger Druckmasch Ag Apparatus for tensioning printing formes on cylinders of rotary printing machines
GB2298392B (en) * 1995-03-03 1998-04-29 Heidelberger Druckmasch Ag Apparatus for tensioning printing formes on a forme cylinder of a rotary printing machine

Also Published As

Publication number Publication date
CN87100585A (en) 1987-09-09
JPS62199447A (en) 1987-09-03
DE3606351A1 (en) 1987-09-03
CN87100585B (en) 1988-06-29
DE3606351C2 (en) 1991-09-05
EP0238804A3 (en) 1989-11-08
DE3773516D1 (en) 1991-11-14
US4712476A (en) 1987-12-15
JPH0521073B2 (en) 1993-03-23
EP0238804B1 (en) 1991-10-09
CA1280034C (en) 1991-02-12

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