EP0739726A2 - Device for tensioning a printing plate on the plate cylinder of a rotary printing machine - Google Patents

Device for tensioning a printing plate on the plate cylinder of a rotary printing machine Download PDF

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Publication number
EP0739726A2
EP0739726A2 EP96102715A EP96102715A EP0739726A2 EP 0739726 A2 EP0739726 A2 EP 0739726A2 EP 96102715 A EP96102715 A EP 96102715A EP 96102715 A EP96102715 A EP 96102715A EP 0739726 A2 EP0739726 A2 EP 0739726A2
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EP
European Patent Office
Prior art keywords
clamping
plate
clamping elements
tensioning
plate cylinder
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
EP96102715A
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German (de)
French (fr)
Other versions
EP0739726A3 (en
EP0739726B1 (en
Inventor
Willi Becker
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
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0739726A2 publication Critical patent/EP0739726A2/en
Publication of EP0739726A3 publication Critical patent/EP0739726A3/en
Application granted granted Critical
Publication of EP0739726B1 publication Critical patent/EP0739726B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—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
    • B41F27/1243—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 pivotal or swivelling motion, e.g. by means of a rocking lever

Definitions

  • the invention relates to a device for clamping a printing plate on a plate cylinder of rotary printing presses with a clamping device arranged in a channel of the plate cylinder for the trailing plate end, which has a shaft for receiving clamping elements with bolts mounted thereon for receiving clamping elements for clamping angled and has non-angled plate ends, with tension springs which act on the tensioning and clamping elements and with pneumatic units for relaxing and releasing the plate end, lugs on the clamping elements being supported on a projection on the plate cylinder.
  • this is achieved in that spring-loaded upper grippers are attached to the clamping elements, which clamp non-angled printing plates or foils and that the tension springs are arranged between the plate cylinder and clamping elements and their clamping force is directed between the shaft for receiving the clamping elements and the bolts for receiving the clamping elements.
  • An advantageous embodiment is characterized in that the sprung top grippers have a rigid gripper part and a spring part. With this solution, the clamping force of the top gripper can be adjusted to the special needs.
  • a further advantageous embodiment of the invention is characterized in that clamping screws are arranged between the tension springs on the plate cylinder and can be adjusted to the top grippers to increase the clamping and tensioning force of the tensioning device.
  • clamping screws are arranged between the tension springs on the plate cylinder and can be adjusted to the top grippers to increase the clamping and tensioning force of the tensioning device.
  • both the clamping force and the clamping force acting on the pressure plate end can be increased so that, regardless of whether an angled or a non-angled pressure plate is used, for example an axial stretching of the trailing plate end is possible.
  • these tensioning screws must be turned back if the plate end is to be relaxed or loosened.
  • a clamping device 3 is provided for the trailing plate end 4, with which the pressure plate 5 can be clamped on the outer surface of the plate cylinder.
  • Clamping elements 7 are fastened on a shaft 6, which is provided in the longitudinal direction of the plate cylinder in channel 1.
  • clamping elements 9 are mounted with bolts, with which an angled plate end 4 can be clamped in connection with the clamping element 7.
  • Pneumatic units 10 are provided for relaxing and releasing the plate end, which can act on the tensioning element 7 (FIG. 2), so that the tensioning element 7 is rotated counterclockwise and approaches 11 support the clamping elements 9 on a projection 12 on the plate cylinder. This simultaneously opens the clamping element 9 to such an extent that the pressure plate 5 is removed and a new pressure plate can be inserted in a simple manner.
  • spring-loaded upper grippers 13 are fastened to the clamping elements 9, which support the clamping of an angled plate end 4 and clamp a non-angled plate end on the clamping element 7.
  • the upper grippers 13 are made of spring steel, for example, and are attached to the clamping element 9 at their end opposite the gripping area.
  • the upper grippers 13 can be formed in two parts with a rigid gripper part 14 and a spring part 15.
  • the spring part 15 is also fastened to the clamping element 9 by means of screws 16.
  • the rigid gripper part 14 is supported on a system 17 on the clamping element 9, so that high clamping forces with the rigid gripper part 14 can be transmitted to the non-angled pressure plate end 4.
  • tension springs 18 are arranged between the plate cylinder 2 and the clamping elements 9 over the length of the plate cylinder 2, the clamping force of which is directed between the shaft 6 for receiving the clamping elements 7 and the bolts 8 for receiving the clamping elements 9 .
  • the tensioning force of the tension springs 18 thus causes the clamping element 9 to be closed and then the tensioning element 7 to be tensioned. In this case, the clamping element 9 is rotated counterclockwise and the tensioning element 7 clockwise.
  • a row of tension springs 18 is therefore sufficient to carry out both functions.
  • tension screws 19 Seen between the individual tension springs 18 in the longitudinal direction of the plate cylinder 2, tension screws 19 are provided which, according to FIGS. 3 and 4, can be adjusted both on the one-piece spring-loaded top gripper 13 (FIG. 3) and on the two-piece top gripper 13 (FIG. 4).
  • the queuing happens to increase the clamping force of the clamping device 3, so that stretching in the circumferential direction can be carried out with a clamped printing plate, regardless of whether the printing plate is folded or not folded.
  • the pressure plate end 4 can also be stretched in the axial direction at this increased clamping force.
  • the clamping screws 19 are turned back so that the clamping device 3 can be operated in a normal manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

Die Erfindung bezieht sich auf eine Vorrichtung zum Spannen einer Druckplatte auf einem Plattenzylinder (2) von Rotationsdruckmaschinen mit einer in einem Kanal (1) des Plattenzylinders (2) angeordneten Spanneinrichtung für das nachlaufende Plattenende (4), die eine Welle (6) zur Aufnahme von Spannelementen (7) mit daran gelagerten Bolzen zur Aufnahme von Klemmelementen (9) zum Festklemmen von abgewinkelten und nicht abgewinkelten Plattenenden aufweist, wobei zum Klemmen von nicht abgewinkelten Plattenenden von Druckplatten und Druckfolien an den Klemmelemente gefederte Obergreifer (13) befestigt sind. <IMAGE>The invention relates to a device for clamping a printing plate on a plate cylinder (2) of rotary printing presses, with a clamping device for the trailing plate end (4) arranged in a channel (1) of the plate cylinder (2), which has a shaft (6) for receiving of clamping elements (7) with bolts mounted thereon for receiving clamping elements (9) for clamping angled and non-angled plate ends, spring-loaded upper grippers (13) being attached to the clamping elements for clamping non-angled plate ends of printing plates and printing foils. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Spannen einer Druckplatte auf einem Plattenzylinder von Rotationsdruckmaschinen mit einer in einem Kanal des Plattenzylinders angeordneten Spanneinrichtung für das nachlaufende Plattenende, die eine Welle zur Aufnahme von Spannelementen mit daran gelagerten Bolzen zur Aufnahme von Klemmelementen zum Festklemmen von abgewinkelten und nicht abgewinkelten Plattenenden aufweist, mit Spannfedern, die auf die Spann- und Klemmelemente einwirken und mit Pneumatikeinheiten zum Entspannen und Lösen des Plattenendes, wobei sich Ansätze an den Klemmelementen an einem Vorsprung am Plattenzylinder abstützen.The invention relates to a device for clamping a printing plate on a plate cylinder of rotary printing presses with a clamping device arranged in a channel of the plate cylinder for the trailing plate end, which has a shaft for receiving clamping elements with bolts mounted thereon for receiving clamping elements for clamping angled and has non-angled plate ends, with tension springs which act on the tensioning and clamping elements and with pneumatic units for relaxing and releasing the plate end, lugs on the clamping elements being supported on a projection on the plate cylinder.

Die DE 42 44 279 A1 zeigt eine derartige Vorrichtung, bei der mehrere Reihen von Druckfedern erforderlich sind, um die Druckplatte zu klemmen und zu spannen. Eine Möglichkeit die Klemmkraft zu erhöhen ist bei dieser bekannten Ausführung nicht offenbart.DE 42 44 279 A1 shows such a device in which several rows of compression springs are required to clamp and tension the pressure plate. One possibility of increasing the clamping force is not disclosed in this known embodiment.

Ausgehend von diesem Stand der Technik ist es die Aufgabe der vorliegenden Erfindung die Spanneinrichtung für das Druckplattenende beim Einspannen von abgewinkelten und nicht abgewinkelten Plattenenden von Druckplatten und Druckfolien zu vereinfachen und das Spannen der Druckplattenenden zu optimieren.Starting from this prior art, it is the object of the present invention to simplify the clamping device for the printing plate end when clamping angled and non-angled plate ends of printing plates and printing foils and to optimize the clamping of the printing plate ends.

Gemäß der Erfindung wird dies dadurch erreicht, daß an den Klemmelementen gefederte Obergreifer befestigt sind, die nicht abgewinkelte Druckplatten oder -folien festklemmen und daß die Spannfedern zwischen Plattenzylinder und Klemmelementen angeordnet sind und ihre Spannkraft zwischen die Welle zur Aufnahme der Spannelemente und die Bolzen zur Aufnahme der Klemmelemente gerichtet ist. Mit dieser Lösung ist lediglich noch eine Reihe von Druckfedern erforderlich, um sowohl das Klemmen als auch das Spannen der unterschiedlichen Druckplattenenden durchzuführen. Mit dem gefederten Obergreifer ist es möglich, auch nicht abgewinkelte Druckplattenenden unabhängig von deren Stärke mit hoher Haltekraft zu klemmen, so daß eine exakte Spannung der Druckplatte bzw. Druckfolie möglich ist.According to the invention, this is achieved in that spring-loaded upper grippers are attached to the clamping elements, which clamp non-angled printing plates or foils and that the tension springs are arranged between the plate cylinder and clamping elements and their clamping force is directed between the shaft for receiving the clamping elements and the bolts for receiving the clamping elements. With this solution, only a series of compression springs is required to carry out both the clamping and the tensioning of the different pressure plate ends. With the sprung top gripper, it is possible to clamp non-angled printing plate ends regardless of their thickness with a high holding force, so that an exact tensioning of the printing plate or printing film is possible.

Eine vorteilhafte Ausgestaltung ist dadurch gekennzeichnet, daß die gefederten Obergreifer ein starres Greiferteil und ein Federteil aufweisen. Mit dieser Lösung kann die Klemmkraft des Obergreifers auf die speziellen Bedürfnisse ausgerichtet werden.An advantageous embodiment is characterized in that the sprung top grippers have a rigid gripper part and a spring part. With this solution, the clamping force of the top gripper can be adjusted to the special needs.

Eine weitere vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, daß zwischen den Spannfedern am Plattenzylinder Spannschrauben angeordnet sind, die an die Obergreifer zum Erhöhen der Klemm- und Spannkraft der Spanneinrichtung anstellbar sind. Mit diesen Spannschrauben ist sowohl die Klemmkraft als auch die Spannkraft, die auf das Druckplattenende wirkt, so zu erhöhen, daß unabhängig ob eine abgewinkelte oder eine nicht abgewinkelte Druckplatte verwendet wird, zum Beispiel ein axiales Dehnen des nachlaufenden Plattenendes möglich ist. Selbstverständlich müssen diese Spannschrauben zurückgedreht werden, wenn ein Entspannen oder Lösen des Plattenendes durchgeführt werden soll.A further advantageous embodiment of the invention is characterized in that clamping screws are arranged between the tension springs on the plate cylinder and can be adjusted to the top grippers to increase the clamping and tensioning force of the tensioning device. With these clamping screws, both the clamping force and the clamping force acting on the pressure plate end can be increased so that, regardless of whether an angled or a non-angled pressure plate is used, for example an axial stretching of the trailing plate end is possible. Of course, these tensioning screws must be turned back if the plate end is to be relaxed or loosened.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen schematisch dargestellt.An embodiment of the invention is shown schematically in the drawings.

Es zeigt:

Fig. 1
einen Teilquerschnitt durch die Vorrichtung mit eingespannter abgewinkelter Druckplatte,
Fig. 2
einen Teilquerschnitt durch die Vorrichtung mit geöffneter Spanneinrichtung,
Fig. 3
einen Teilquerschnitt durch die Vorrichtung mit angestellten Spannschrauben,
Fig. 4
einen Teilquerschnitt durch die Vorrichtung mit angestellter Spannschraube bei Verwendung eines zweiteiligen Obergreifers,
Fig. 5
eine Teillängsansicht auf die Vorrichtung.
It shows:
Fig. 1
a partial cross section through the device with clamped angled pressure plate,
Fig. 2
a partial cross section through the device with the clamping device open,
Fig. 3
a partial cross section through the device with the tensioning screws engaged,
Fig. 4
a partial cross section through the device with the clamping screw set when using a two-part top gripper,
Fig. 5
a partial longitudinal view of the device.

In einen Kanal 1 eines Plattenzylinders 2 ist eine Spanneinrichtung 3 für das nachlaufende Plattenende 4 vorgesehen, mit der die Druckplatte 5 auf der Mantelfläche des Plattenzylinders gespannt werden kann. Auf einer Welle 6, die in Längsrichtung des Plattenzylinders im Kanal 1 vorgesehen ist, sind Spannelemente 7 befestigt. An den Spannelementen 7 sind über Bolzen 8 Klemmelemente 9 gelagert, mit denen ein abgewinkeltes Plattenende 4 in Verbindung mit dem Spannelement 7 festgeklemmt werden kann. Nach dem Klemmen erfolgt sodann das Spannen der Druckplatte 5. Zum Entspannen und Lösen des Plattenendes sind Pneumatikeinheiten 10 vorgesehen, die auf das Spannelement 7 einwirken können (Fig. 2), so daß das Spannelement 7 entgegen dem Uhrzeigersinn verdreht wird und sich Ansätze 11 an den Klemmelementen 9 an einem Vorsprung 12 am Plattenzylinder abstützen. Hierdurch öffnet sich gleichzeitig das Klemmelement 9 soweit, daß die Druckplatte 5 entnommen und eine neue Druckplatte auf einfache Weise einzulegen ist.In a channel 1 of a plate cylinder 2, a clamping device 3 is provided for the trailing plate end 4, with which the pressure plate 5 can be clamped on the outer surface of the plate cylinder. Clamping elements 7 are fastened on a shaft 6, which is provided in the longitudinal direction of the plate cylinder in channel 1. On the clamping elements 7 8 clamping elements 9 are mounted with bolts, with which an angled plate end 4 can be clamped in connection with the clamping element 7. After clamping, the pressure plate 5 is then tensioned. Pneumatic units 10 are provided for relaxing and releasing the plate end, which can act on the tensioning element 7 (FIG. 2), so that the tensioning element 7 is rotated counterclockwise and approaches 11 support the clamping elements 9 on a projection 12 on the plate cylinder. This simultaneously opens the clamping element 9 to such an extent that the pressure plate 5 is removed and a new pressure plate can be inserted in a simple manner.

Gemäß der Erfindung sind an den Klemmelementen 9 gefederte Obergreifer 13 befestigt, die die Klemmung eines abgewinkelten Plattenendes 4 unterstützen und ein nicht abgewinkeltes Plattenende auf dem Spannelement 7 festklemmen.According to the invention, spring-loaded upper grippers 13 are fastened to the clamping elements 9, which support the clamping of an angled plate end 4 and clamp a non-angled plate end on the clamping element 7.

Gemäß den Figuren 1 bis 3 sind die Obergreifer 13 zum Beispiel aus Federstahl ausgeführt und an ihrem dem Greifbereich gegenüberliegenden Ende an dem Klemmelement 9 befestigt.According to FIGS. 1 to 3, the upper grippers 13 are made of spring steel, for example, and are attached to the clamping element 9 at their end opposite the gripping area.

Gemäß Fig. 4 können die Obergreifer 13 zweiteilig ausgebildet sein mit einem starren Greiferteil 14 und einem Federteil 15. Das Federteil 15 ist hierbei ebenfalls über Schrauben 16 an dem Klemmelement 9 befestigt. Zusätzlich stützt sich das starre Greiferteil 14 auf einer Anlage 17 am Klemmelement 9 ab, so daß hohe Klemmkräfte mit dem starren Greiferteil 14 auf das nicht abgewinkelte Druckplattenende 4 übertragen werden können.4, the upper grippers 13 can be formed in two parts with a rigid gripper part 14 and a spring part 15. The spring part 15 is also fastened to the clamping element 9 by means of screws 16. In addition, the rigid gripper part 14 is supported on a system 17 on the clamping element 9, so that high clamping forces with the rigid gripper part 14 can be transmitted to the non-angled pressure plate end 4.

Wie in den Figuren 1, 2 und 5 gezeigt sind Spannfedern 18 zwischen Plattenzylinder 2 und den Klemmelementen 9 über die Länge des Plattenzylinders 2 angeordnet, deren Spannkraft zwischen die Welle 6 zur Aufnahme der Spannelemente 7 und die Bolzen 8 zur Aufnahme der Klemmelemente 9 gerichtet ist. Die Spannkraft der Spannfedern 18 bewirkt somit ein Schließen des Klemmelements 9 und danach ein Spannen des Spannelements 7. Hierbei wird das Klemmelement 9 entgegen dem Uhrzeigersinn verdreht und das Spannelement 7 im Uhrzeigersinn. Es genügt somit eine Reihe Spannfedern 18 um beide Funktionen auszuführen.As shown in Figures 1, 2 and 5, tension springs 18 are arranged between the plate cylinder 2 and the clamping elements 9 over the length of the plate cylinder 2, the clamping force of which is directed between the shaft 6 for receiving the clamping elements 7 and the bolts 8 for receiving the clamping elements 9 . The tensioning force of the tension springs 18 thus causes the clamping element 9 to be closed and then the tensioning element 7 to be tensioned. In this case, the clamping element 9 is rotated counterclockwise and the tensioning element 7 clockwise. A row of tension springs 18 is therefore sufficient to carry out both functions.

Zwischen den einzelnen Spannfedern 18 in Längsrichtung des Plattenzylinders 2 gesehen sind Spannschrauben 19 vorgesehen, die gemäß Fig. 3 und 4 sowohl auf den einteiligen gefederten Obergreifer 13 (Fig. 3) als auch auf den zweiteiligen Obergreifer 13 (Fig. 4) anstellbar sind. Das Anstellen geschieht zur Erhöhung der Spannkraft der Spanneinrichtung 3, so daß bei eingespannter Druckplatte unabhängig ob abgekantete oder nicht abgekantete Druckplatte ein Strecken in Umfangsrichtung durchgeführt werden kann. Selbstverständlich läßt sich auch ein Dehnen des Druckplattenendes 4 in axialer Richtung bei dieser erhöhten Spannkraft durchführen. Nach dem Strecken oder Dehnen der Druckplatte werden die Spannschrauben 19 wieder zurückgedreht, so daß die Spanneinrichtung 3 in normaler Weise betätigt werden kann.Seen between the individual tension springs 18 in the longitudinal direction of the plate cylinder 2, tension screws 19 are provided which, according to FIGS. 3 and 4, can be adjusted both on the one-piece spring-loaded top gripper 13 (FIG. 3) and on the two-piece top gripper 13 (FIG. 4). The queuing happens to increase the clamping force of the clamping device 3, so that stretching in the circumferential direction can be carried out with a clamped printing plate, regardless of whether the printing plate is folded or not folded. Of course, the pressure plate end 4 can also be stretched in the axial direction at this increased clamping force. After stretching or stretching the pressure plate, the clamping screws 19 are turned back so that the clamping device 3 can be operated in a normal manner.

TeilelisteParts list

11
Kanalchannel
22nd
PlattenzylinderPlate cylinder
33rd
SpanneinrichtungClamping device
44th
PlattenendePlate end
55
Druckplatteprinting plate
66
Wellewave
77
SpannelementeClamping elements
88th
Bolzenbolt
99
KlemmelementeClamping elements
1010th
PneumatikeinheitPneumatic unit
1111
Ansatzapproach
1212th
Vorsprunghead Start
1313
ObergreiferTop gripper
1414
GreiferteilGripper part
1515
FederteilSpring part
1616
Schraubescrew
1717th
Anlageinvestment
1818th
SpannfederTension spring
1919th
SpannschraubeClamping screw

Claims (3)

Vorrichtung zum Spannen einer Druckplatte auf einem Plattenzylinder von Rotationsdruckmaschinen mit einer in einem Kanal des Plattenzylinders angeordneten Spanneinrichtung für das nachlaufende Plattenende, die eine Welle zur Aufnahme von Spannelementen mit daran gelagerten Bolzen zur Aufnahme von Klemmelementen zum Festklemmen von abgewinkelten und nicht abgewinkelten Plattenenden aufweist, mit Spannfedern, die auf die Spann- und Klemmelemente einwirken und mit Pneumatikeinheiten zum Entspannen und Lösen des Plattenendes, wobei sich Ansätze an den Klemmelementen an einem Vorsprung am Plattenzylinder abstützen,
dadurch gekennzeichnet,
daß an den Klemmelementen (9) gefederte Obergreifer (13) befestigt sind, die nicht abgewinkelte Druckplatten (5) oder -folien festklemmen und
die Spannfedern (18) zwischen Plattenzylinder (2) und Klemmelementen (9) angeordnet sind und ihre Spannkraft zwischen die Welle (6) zur Aufnahme der Spannelement (7) und die Bolzen (8) zur Aufnahme der Klemmelemente (9) gerichtet ist.Device for clamping a printing plate on a plate cylinder of rotary printing presses with a clamping device arranged in a channel of the plate cylinder for the trailing plate end, which has a shaft for receiving clamping elements with bolts mounted thereon for receiving clamping elements for clamping angled and non-angled plate ends Tension springs, which act on the tensioning and clamping elements and with pneumatic units for relaxing and releasing the plate end, lugs on the clamping elements being supported on a projection on the plate cylinder,
characterized,
that spring-loaded top grippers (13) are attached to the clamping elements (9), which clamp non-angled pressure plates (5) or foils and
the tension springs (18) are arranged between the plate cylinder (2) and the clamping elements (9) and their tensioning force is directed between the shaft (6) for receiving the tensioning element (7) and the bolts (8) for receiving the clamping elements (9). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß die gefederten Obergreifer (13) ein starres Greiferteil (14) und ein Federteil (15) aufweisen.Device according to claim 1,
characterized,
that the sprung top gripper (13) has a rigid gripper part (14) and a spring part (15). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß zwischen den Spannfedern (18) am Plattenzylinder (2) Spannschrauben (19) angeordnet sind, die an die Obergreifer (13) zum Erhöhen der Klemm- und Spannkraft der Spanneinrichtung (3) anstellbar sind.Device according to claim 1,
characterized,
that between the tension springs (18) on the plate cylinder (2) tension screws (19) are arranged, which can be adjusted to the upper grippers (13) to increase the clamping and tensioning force of the tensioning device (3).
EP96102715A 1995-04-29 1996-02-23 Device for tensioning a printing plate on the plate cylinder of a rotary printing machine Expired - Lifetime EP0739726B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19515843A DE19515843C1 (en) 1995-04-29 1995-04-29 Clamp for printing plate on plate cylinder of rotary printer
DE19515843 1995-04-29

Publications (3)

Publication Number Publication Date
EP0739726A2 true EP0739726A2 (en) 1996-10-30
EP0739726A3 EP0739726A3 (en) 1997-03-05
EP0739726B1 EP0739726B1 (en) 1998-12-09

Family

ID=7760721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102715A Expired - Lifetime EP0739726B1 (en) 1995-04-29 1996-02-23 Device for tensioning a printing plate on the plate cylinder of a rotary printing machine

Country Status (5)

Country Link
US (1) US5642669A (en)
EP (1) EP0739726B1 (en)
JP (1) JP2954016B2 (en)
CN (1) CN1089686C (en)
DE (2) DE19515843C1 (en)

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DE19958238B4 (en) * 1999-01-18 2006-11-16 Heidelberger Druckmaschinen Ag Clamping device for clamping a cylinder lift on a printing press cylinder
DE102004020694A1 (en) * 2004-04-28 2005-11-24 Heidelberger Druckmaschinen Ag Device for clamping and holding a printing plate on a printing plate on an exposure drum
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DE102008062016A1 (en) * 2008-12-12 2010-06-17 Heidelberger Druckmaschinen Ag Method for fastening flexible elevator of transferring drum, involves adjusting end of elevator in clamping devices with predetermined clamping force
DE102016201236A1 (en) * 2015-02-24 2016-08-25 Heidelberger Druckmaschinen Ag Printing press cylinder
CN106183386A (en) * 2016-07-08 2016-12-07 江苏华宇印涂设备集团有限公司 Iron-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
CN106183387A (en) * 2016-07-08 2016-12-07 江苏华宇印涂设备集团有限公司 Iron-printing machine
CN106042632B (en) * 2016-07-08 2019-08-02 江苏华宇印涂设备集团有限公司 Iron-printing machine plate cylinder
EP3530461B1 (en) 2018-02-22 2020-08-26 Heidelberger Druckmaschinen AG Method for changing printing plates on a cylinder and printing cylinder with checkvalve in the hydraulik line connected to the clamp device
DE102020123196A1 (en) * 2020-09-04 2022-03-10 Kolbus Gmbh & Co. Kg Device for stretching an arcuate roll cover around a roll
CN113714537A (en) * 2021-09-02 2021-11-30 深圳宏友金钻石工具有限公司 Clamping assembly

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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
DE3918215C1 (en) * 1989-06-03 1990-11-08 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE3934334C1 (en) * 1989-10-14 1991-04-11 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE9318599U1 (en) * 1993-12-04 1994-02-24 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Device for pivoting flexible printing plates on the plate cylinder of rotary printing machines

Patent Citations (3)

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DE4128994A1 (en) * 1990-12-31 1992-07-02 Heidelberger Druckmasch Ag Printing plate grip mechanism on cylinder - has radial opposite working faces on gripping and tightening bars
EP0516261A1 (en) * 1991-05-30 1992-12-02 Komori Corporation Plate lockup apparatus for printing press
DE4244279A1 (en) * 1992-12-28 1994-06-30 Heidelberger Druckmasch Ag Printing form correction device to compensate for printing medium strains

Also Published As

Publication number Publication date
JPH08300627A (en) 1996-11-19
CN1134882A (en) 1996-11-06
CN1089686C (en) 2002-08-28
US5642669A (en) 1997-07-01
DE19515843C1 (en) 1996-06-27
EP0739726A3 (en) 1997-03-05
DE59600932D1 (en) 1999-01-21
JP2954016B2 (en) 1999-09-27
EP0739726B1 (en) 1998-12-09

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