EP0563601A1 - Device for clamping and tensioning a printing plate in a printing machine - Google Patents

Device for clamping and tensioning a printing plate in a printing machine Download PDF

Info

Publication number
EP0563601A1
EP0563601A1 EP93103370A EP93103370A EP0563601A1 EP 0563601 A1 EP0563601 A1 EP 0563601A1 EP 93103370 A EP93103370 A EP 93103370A EP 93103370 A EP93103370 A EP 93103370A EP 0563601 A1 EP0563601 A1 EP 0563601A1
Authority
EP
European Patent Office
Prior art keywords
clamping
plate cylinder
channel
tensioning device
radially
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
EP93103370A
Other languages
German (de)
French (fr)
Other versions
EP0563601B1 (en
Inventor
Peter-Theobald Blaser
Karl-Hermann Miltner
Anton Rodi
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 EP0563601A1 publication Critical patent/EP0563601A1/en
Application granted granted Critical
Publication of EP0563601B1 publication Critical patent/EP0563601B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—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 clamping and tensioning device for the inwardly angled trailing edge of a flexible printing plate in an axial channel on the circumference of a plate cylinder of a printing press according to the preamble of claim 1.
  • the clamping bar at the rear in the clamping direction is supported in the channel as a double lever acting radially to the cylinder axis and can be pivoted by a pneumatic actuating element in the plate cylinder against the action of a spring loading the clamping end in the clamping direction of the pressure plate clamped on the circumference of the plate cylinder, around the tension and to release the clamping of the angled rear edge of the pressure plate in the clamping slot between the two clamping surfaces of the clamping strips.
  • the always defined clamping force and the likewise defined clamping force by the springs, which are supported on the other hand against the body of the plate cylinder, are advantageous.
  • the object of the invention is to provide a clamping and tensioning device according to the preamble of claim 1 in such a way that, even when the pressure plate is changed automatically, no additional device is required for inserting the fold at the rear plate end into the clamping slot of the tensioning device.
  • Such a design allows the clamping strips of the clamping device to be moved radially out of the axial channel of the plate cylinder at least to such an extent that the radially outer boundary surfaces of the clamping strips lie outside the cross-sectional contour of the plate cylinder.
  • the folding of the bend at the rear end of the printing plate into the clamping slot, the radially outer area of which is then approximately in the cross-sectional contour of the plate cylinder or advantageously somewhat outside of this cross-sectional contour, is then carried out by a rotary movement of the blanket cylinder, so that the blanket cylinder bends into the clamping slot pushes in.
  • the clamping and tensioning device is then retracted with the clamped bend of the pressure plate radially inward towards the axis of the plate cylinder into a stable stop position in which the peripheral rear edge of the pressure plate lies within the cross-sectional contour of the plate cylinder.
  • the axially extending channel of the rubber blanket cylinder must be correspondingly narrow in order to achieve a sufficient offset with respect to the axial channel of the plate cylinder.
  • a training with features of claim 3 enables the advantages explained for the arrangement according to DE-P 41 28 994 to be retained.
  • the blanket cylinder 1 and the plate cylinder 2 of an offset sheet-fed rotary printing press are shown in the drawing figures.
  • the blanket cylinder 1 has an axially extending channel 3 on the circumference and is covered with the blanket 23.
  • the plate cylinder 2 is provided with an also axially extending, open at the circumference channel 4.
  • a clamping device for a pressure plate 5 that can be clamped onto the circumference of the plate cylinder 2, the front edge of which is fixed at another point on the circumference of the plate cylinder 2 and the rear edge of which with a radially inward bend 6 into a clamping slot 7 of the clamping and clamping device engages in which the rear end of the pressure plate 5 is held and by which the pressure plate is clamped on the circumference of the plate cylinder.
  • This clamping device consists of two clamping strips 8 and 9, on the outer ends of which cross-sectional ends are formed which enclose the clamping slot 7.
  • Both terminal strips 8 and 9 are arranged in a frame 10 which is guided in the channel 4 of the plate cylinder 2 between stable stop positions approximately radially movable, so that the two terminal strips 8 and 9 with the clamping slot 7 at least partially out of the cross-sectional contour of the plate cylinder 2 and are retractable so far radially inwards that the peripheral rear edge of the pressure plate 5 lies within the cross-sectional contour of the plate cylinder.
  • the rear in the tensioning direction of the pressure plate 5, that is to say in the drawing the left clamping strip 8 is supported in cross section as a double lever by means of a shaft 11, shaft extensions or the like in a crowned groove of the frame 10.
  • the inner end of this double lever is held by a prestressed spring 12 in the direction of the tension of the pressure plate 5 on the circumference of the plate cylinder 2 permanently charged.
  • an advantageously pneumatically actuated adjusting unit 20 is effective, which, when actuated, pivots the double lever against the spring 12 in order to release the tension of the pressure plate on the plate cylinder 2 and at the same time the clamping device.
  • the other terminal block 9 also has a spherical projection 13 approximately in the cross section, which is supported radially outside the axis of the shaft 11 in a ball socket against the terminal block 8.
  • this clamping bar 9 engages with a projection 14 in a recess 15 in the frame 10, whereby the clamping bar 9 is held in its drawn position on the one hand, but on the other hand is sufficiently movable for tensioning and releasing the tensioning and clamping device.
  • a frame 10 of approximately U-shaped design with a bottom land surface 24, a flat outer land surface 25 on one outside and flat partial area surfaces 26 and 27 on the other outside of the legs is advantageous. This enables the frame 10 to be guided in the guide surfaces 28 of the channel 4 of the plate cylinder 2 by means of linear roller bearings 16 in order to achieve smooth and play-free mobility of the frame.
  • the trough-shaped, cross-sectionally U-shaped frame 10 can be inserted axially into the channel 4 from one end face and engages under approximately parallel counter surfaces 29 in the channel 4 of the plate cylinder with supporting surfaces 17 running approximately tangentially. Between these support surfaces 17 and the body of the plate cylinder 4 springs 18 and 19 are biased on both sides of the channel, which permanently load the frame 10 in the direction of the axis of the plate cylinder 2.
  • Adjustment units 21 and 22 which are acted upon pneumatically, are advantageously arranged under the frame 10 and, in the unloaded state, enable radially inward directed force transmission. This positive force transmission takes place in the circumferential direction through the roller bearing body 16.
  • the force of the springs 18 and 19 is overcome, so that the frame 10 with the clamping strips 8 and 9 to the outside and the clamping slot 7 are at least partially moved out of the area of the cross-sectional contour of the plate cylinder 2.
  • Actuation of the adjusting unit 20, which is effective against the inner end of the clamping strip 8, overcomes the spring force 12, so that the clamping strip 8 pivots about the shaft 11 and the clamping slot 7 is opened.
  • the printing plate 5 can be pressed into the clamping slot 7 by rotating the rubber blanket cylinder 1 and the plate cylinder 2 against the circumference of the plate cylinder 2 and at the same time the rear edge 6 of the printing plate.
  • This bend is clamped when the adjustment unit 20 is relieved.
  • the springs 18 and 19 press the frame 10 with the clamping strips 8 and 9 radially inward into a stable stop position, in which the peripheral rear edge of the pressure plate 5 is inside the cross-sectional contour of the plate cylinder 2 lies. No other tools are required. In particular, no special device for pressing in the rear fold 6 of the pressure plate 5 is required. It is only necessary to ensure that the blanket cylinder 1 reaches the rear edge 6 of the printing plate 5 with its circumference. This can be achieved by a correspondingly narrow channel in the blanket cylinder 1 or, if appropriate, by a temporary rotation of the blanket cylinder 1 relative to the plate cylinder 2 during the actuation of the clamping device, as is shown schematically in FIG.

Landscapes

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

Abstract

The invention relates to a device for clamping and tensioning the inwardly bent trailing edge (6) of a flexible printing plate (5) in an axial gap (4) on the circumference of a plate cylinder (2) of a printing machine. In order in this case to allow automated exchange of the printing plate (5) without additional equipment for inserting the bent portion (6) at the trailing end of the plate into a clamping slot (7) in the clamping and tensioning device, the latter is arranged so as to be radially movable in the gap (4) and can be moved outwards by drive forces counter to the action of a spring so that the bent portion (6) of the printing plate (5) can be pressed into the clamping slot (7) by the blanket cylinder (1). The spring forces hold the clamping and tensioning device in a stable stop position in the operating state. <IMAGE>

Description

Die Erfindung betrifft eine Klemm- und Spannvorrichtung für die nach innen abgewinkelte Hinterkante einer flexiblen Druckplatte in einem axialen Kanal am Umfang eines Plattenzylinders einer Druckmaschine nach dem Oberbegriff des Patentanspruches 1.The invention relates to a clamping and tensioning device for the inwardly angled trailing edge of a flexible printing plate in an axial channel on the circumference of a plate cylinder of a printing press according to the preamble of claim 1.

Eine solche Klemm- und Spannvorrichtung ist in der DE-P 41 28 994 offenbart. Hieraus ist eine Anordnung bekannt, bei der zwei parallel zueinander in dem axialen Kanal am Umfang eines Plattenzylinders angeordnete Klemmleisten sich gegenüberliegend ausgebildete Klemmflächen den Spannschlitz zur Erfassung der abgewinkelten Hinterkante der Druckplatte aufweisen, wobei die Knickkante der Abwinkelung um ein vorbestimmtes Maß radial innerhalb der etwa kreisförmigen Querschnittskontur des Plattenzylinders liegt. Die in Spannrichtung hintere Spannleiste ist in dem Kanal als ein radial zur Zylinderachse wirksamer Doppelhebel gegen den Plattenzylinder abgestützt und durch ein pneumatisches Stellelement im Plattenzylinder gegen die Wirkung einer das Klemmende in Spannrichtung der auf den Umfang des Plattenzylinders aufgespannten Druckplatte belastenden Feder schwenkbar, um die Spannung und die Klemmung der abgewinkelten Hinterkante der Druckplatte in dem Klemmschlitz zwischen den beiden Klemmflächen der Klemmleisten zu lösen. Vorteilhaft sind die stets definierte Klemmkraft und die ebenfalls definierte Spannkraft durch die Federn, welche sich andererseits gegen den Körper des Plattenzylinders abstützen.Such a clamping and tensioning device is disclosed in DE-P 41 28 994. From this, an arrangement is known in which two clamping strips arranged parallel to each other in the axial channel on the circumference of a plate cylinder have the clamping slot for detecting the angled rear edge of the pressure plate, the bent edge of the angling being radially a predetermined amount within the approximately circular Cross-sectional contour of the plate cylinder lies. The clamping bar at the rear in the clamping direction is supported in the channel as a double lever acting radially to the cylinder axis and can be pivoted by a pneumatic actuating element in the plate cylinder against the action of a spring loading the clamping end in the clamping direction of the pressure plate clamped on the circumference of the plate cylinder, around the tension and to release the clamping of the angled rear edge of the pressure plate in the clamping slot between the two clamping surfaces of the clamping strips. The always defined clamping force and the likewise defined clamping force by the springs, which are supported on the other hand against the body of the plate cylinder, are advantageous.

Um die Abwinkelung der Druckplattenhinterkante, insbesondere bei einer automatisierten Druckplatteneinspannung, so tief in den Klemmschlitz innerhalb der Querschnittskontur des Plattenzylinders zu drücken, daß auch die periphere Hinterkante der Druckplatte innerhalb der Querschnittskontur des Plattenzylinders liegt, sind Zusatzeinrichtungen erforderlich, wie sie beispielsweise aus der JP-Sho 63-191636 und auch aus der EP 0 411 371 -A2- bekannt sind. Diese Schriften offenbaren jeweils eine Einrichtung, bei der eine radial elastische Walze bereits nach dem Einspannen der Vorderkante der Druckplatte gegen den Umfang des Plattenzylinders drückt, bis auch die abgewinkelte Hinterkante der Druckplatte in den Klemmschlitz eingeführt und innerhalb der Querschnittskontur des Plattenzylinders geklemmt ist. Solche Zusatzeinrichtungen für das Einschieben der abgewinkelten Hinterkante der Druckplatte in den Spannschlitz einer Klemmvorrichtung sind mit Sicherheitsvorkehrungen auszurüsten, um Kollisionen beweglicher Teile zu vermeiden und sind dementsprechend kostenaufwendig.In order to press the bend of the pressure plate trailing edge, particularly in the case of an automated pressure plate clamping, so deeply into the clamping slot within the cross-sectional contour of the plate cylinder that the peripheral rear edge of the pressure plate within the cross-sectional contour of the Plate cylinder, additional devices are required, as are known for example from JP-Sho 63-191636 and also from EP 0 411 371 -A2-. These documents each disclose a device in which a radially elastic roller presses against the circumference of the plate cylinder after the front edge of the pressure plate has been clamped until the angled rear edge of the pressure plate is also inserted into the clamping slot and clamped within the cross-sectional contour of the plate cylinder. Such additional devices for inserting the angled rear edge of the pressure plate into the clamping slot of a clamping device are to be equipped with safety precautions in order to avoid collisions of moving parts and are accordingly expensive.

Aufgabe der Erfindung ist es, eine Klemm- und Spannvorrichtung nach dem Oberbegriff des Patentanspruches 1 in der Weise auszubilden, daß auch bei automatisiertem Wechsel der Druckplatte keine Zusatzeinrichtung für das Einschieben der Abkantung am hinteren Plattenende in den Klemmschlitz der Spannvorrichtung erforderlich ist.The object of the invention is to provide a clamping and tensioning device according to the preamble of claim 1 in such a way that, even when the pressure plate is changed automatically, no additional device is required for inserting the fold at the rear plate end into the clamping slot of the tensioning device.

Diese Aufgabe löst die Erfindung mit einer Ausbildung nach dem Kennzeichen des Patentanspruches 1.This object is achieved by the invention with an embodiment according to the characterizing part of patent claim 1.

Eine solche Ausbildung ermöglicht das radiale Herausfahren der Klemmleisten der Klemmvorrichtung aus dem axialen Kanal des Plattenzylinders wenigstens soweit, daß die radial äußeren Begrenzungsflächen der Klemmleisten außerhalb der Querschnittskontur des Plattenzylinders liegen. Das Einschieben der Abkantung am hinteren Ende der Druckplatte in den Klemmschlitz, dessen radial äußerer Bereich sich dann etwa in der Querschnittskontur des Plattenzylinders oder vorteilhaft etwas außerhalb dieser Querschnittskontur befindet, erfolgt dann durch eine Drehbewegung des Gummituchzylinders, so daß der Gummituchzylinder die Abkantung in den Klemmschlitz eindrückt.Such a design allows the clamping strips of the clamping device to be moved radially out of the axial channel of the plate cylinder at least to such an extent that the radially outer boundary surfaces of the clamping strips lie outside the cross-sectional contour of the plate cylinder. The folding of the bend at the rear end of the printing plate into the clamping slot, the radially outer area of which is then approximately in the cross-sectional contour of the plate cylinder or advantageously somewhat outside of this cross-sectional contour, is then carried out by a rotary movement of the blanket cylinder, so that the blanket cylinder bends into the clamping slot pushes in.

Die Klemm- und Spannvorrichtung wird danach mit der geklemmten Abwinklung der Druckplatte radial nach innen in Richtung zur Achse des Plattenzylinders bis in eine stabile Anschlaglage zurückgezogen, in der die periphere Hinterkante der Druckplatte innerhalb der Querschnittskontur des Plattenzylinders liegt. Damit das Gummituch des Gummituchzylinders die Hinterkante der Druckplatte erreicht, muß der sich axial erstreckende Kanal des Gummituchzylinders entsprechend schmal sein, um einen ausreichenden Versatz gegenüber dem axialen Kanal des Plattenzylinders zu erreichen. Möglich ist es aber auch, für die Dauer der Aufspannung der Druckplatte den Gummituchzylinder gegenüber dem Plattenzylinder zu verdrehen, damit der Gummituchzylinder die hintere Abkantung der Druckplatte erreicht und diese in den Klemmschlitz der radial ausgefahrenen Klemmund Spannvorrichtung satt einzudrücken.The clamping and tensioning device is then retracted with the clamped bend of the pressure plate radially inward towards the axis of the plate cylinder into a stable stop position in which the peripheral rear edge of the pressure plate lies within the cross-sectional contour of the plate cylinder. In order for the rubber blanket of the rubber blanket cylinder to reach the rear edge of the printing plate, the axially extending channel of the rubber blanket cylinder must be correspondingly narrow in order to achieve a sufficient offset with respect to the axial channel of the plate cylinder. However, it is also possible to rotate the blanket cylinder relative to the plate cylinder for the duration of the clamping of the printing plate, so that the blanket cylinder reaches the rear bend of the printing plate and press it fully into the clamping slot of the radially extended clamping and tensioning device.

Bevorzugt wird die Anwendung der Erfindungsmerkmale bei einer Klemmvorrichtung nach dem Patentanspruch 2, wodurch eine stabile Konstruktion mit formschlüssiger übertragung der Klemm- und Spannkräfte auf den Körper des Plattenzylinders erreicht wird.It is preferred to use the features of the invention in a clamping device according to claim 2, whereby a stable construction with positive transmission of the clamping and clamping forces to the body of the plate cylinder is achieved.

Eine Ausbildung mit Merkmalen des Patentanspruches 3 ermöglicht die Beibehaltung der zu der Anordnung nach der DE-P 41 28 994 erläuterten Vorteile.A training with features of claim 3 enables the advantages explained for the arrangement according to DE-P 41 28 994 to be retained.

Weitere vorteilhafte Ausbildungsmerkmale enthalten die Ansprüche 4 bis 11.Claims 4 to 11 contain further advantageous training features.

Ein Ausführungsbeispiel der Erfindungsmerkmale ist auf der Zeichnung dargestellt. Es zeigen:

Figur 1
einen Querschnitt durch einen axialen Kanal in einem Plattenzylinder und durch eine darin angeordnete Klemm- und Spannvorrichtung in der Druckstellung,
Figur 2
den gleichen Querschnitt in einer Spannstellung und
Figur 3
schematisch die Phasenstellung von Plattenzylinder und Gummituchzylinder zum Einschieben der Abkantung in den Klemmschlitz.
An embodiment of the features of the invention is shown in the drawing. Show it:
Figure 1
3 shows a cross section through an axial channel in a plate cylinder and through a clamping and tensioning device arranged therein in the pressure position,
Figure 2
the same cross section in a clamping position and
Figure 3
schematically the phase position of the plate cylinder and blanket cylinder for inserting the fold into the clamping slot.

In den Zeichnungsfiguren sind der Gummituchzylinder 1 und der Plattenzylinder 2 einer Offset-Bogenrotationsdruckmaschine dargestellt. Der Gummituchzylinder 1 weist am Umfang einen axial verlaufenden Kanal 3 auf und ist mit dem Gummituch 23 bespannt. Der Plattenzylinder 2 ist mit einem ebenfalls axial verlaufenden, am Umfang offenen Kanal 4 versehen. In diesem Kanal 4 ist eine Klemmvorrichtung für eine auf den Umfang des Plattenzylinders 2 aufspannbare Druckplatte 5 angeordnet, deren Vorderkante an anderer Stelle am Umfang des Plattenzylinders 2 festgelegt ist und deren Hinterkante mit einer radial nach innen gerichteten Abkantung 6 in einen Klemmschlitz 7 der Klemm- und Spannvorrichtung eingreift, in der das hintere Ende der Druckplatte 5 festgehalten und durch die die Druckplatte auf dem Umfang des Plattenzylinders gespannt wird. Diese Klemmvorrichtung besteht aus zwei Klemmleisten 8 und 9, an deren im Querschnitt äußeren Enden Klemmflächen ausgebildet sind, die den Klemmschlitz 7 einschließen. Beide Klemmleisten 8 und 9 sind in einem Rahmen 10 angeordnet, der in dem Kanal 4 des Plattenzylinders 2 zwischen stabilen Anschlaglagen etwa radial beweglich geführt ist, so daß die beiden Klemmleisten 8 und 9 mit dem Klemmschlitz 7 wenigstens teilweise aus der Querschnittskontur des Plattenzylinders 2 heraus und so weit radial nach innen zurückziehbar sind, daß die periphere Hinterkante der Druckplatte 5 innerhalb der Querschnittskontur des Plattenzylinders liegt. Die in Spannrichtung der Druckplatte 5 hintere, das heißt, in der Zeichnung die linke Klemmleiste 8 ist im Querschnitt als Doppelhebel mittels einer Welle 11, Wellenansätzen oder dergleichen in einer balligen Auskehlung des Rahmens 10 abgestützt. Das innere Ende dieses Doppelhebels wird durch eine vorgespannte Feder 12 in Richtung der Spannung der Druckplatte 5 auf dem Umfang des Plattenzylinders 2 permanent belastet. Auf der gegenüberliegenden Seite ist gegen das innere Ende des Doppelhebels der Klemmleiste 8 eine vorteilhaft pneumatisch beaufschlagbare Verstelleinheit 20 wirksam, welche bei einer Betätigung den Doppelhebel gegen die Feder 12 verschwenkt, um die Spannung der Druckplatte auf dem Plattenzylinder 2 und gleichzeitig die Klemmvorrichtung zu lösen. Die andere Klemmleiste 9 weist im Querschnitt ebenfalls etwa mittig einen balligen Vorsprung 13 auf, der sich radial außerhalb der Achse der Welle 11 in einer Kugelpfanne gegen die Klemmleiste 8 abstützt. Das innere Ende dieser Klemmleiste 9 greift mit einem Vorsprung 14 in eine Ausnehmung 15 im Rahmen 10 ein, wodurch die Klemmleiste 9 einerseits in ihrer gezeichneten Lage gehalten wird, andererseits aber zum Spannen und Lösen der Spann- und Klemmvorrichtung ausreichend beweglich ist. Vorteilhaft ist ein im Querschnitt etwa u-förmig gestalteter Rahmen 10 mit einer Bodenstegfläche 24, einer ebenen äußeren Stegfläche 25 an der einen Außenseite und ebenen Teilbereichsflächen 26 und 27 an der anderen Außenseite der Schenkel. Dadurch ist eine Führung des Rahmens 10 in den Führungsflächen 28 des Kanals 4 des Plattenzylinders 2 mittels linearer Wälzlager 16 möglich, um eine leichtgängige und spielfreie Beweglichkeit des Rahmens zu erreichen. Der trogförmige, im Querschnitt u-förmige Rahmen 10 ist von einer Stirnseite her axial in den Kanal 4 einschiebbar und untergreift mit etwa tangential verlaufenden Stützflächen 17 etwa parallel verlaufende Gegenflächen 29 im Kanal 4 des Plattenzylinders. Zwischen diesen Stützflächen 17 und dem Körper des Plattenzylinders sind auf beiden Seiten des Kanals 4 Federn 18 und 19 vorgespannt, die den Rahmen 10 permanent in Richtung zur Achse des Plattenzylinders 2 belasten.The blanket cylinder 1 and the plate cylinder 2 of an offset sheet-fed rotary printing press are shown in the drawing figures. The blanket cylinder 1 has an axially extending channel 3 on the circumference and is covered with the blanket 23. The plate cylinder 2 is provided with an also axially extending, open at the circumference channel 4. Arranged in this channel 4 is a clamping device for a pressure plate 5 that can be clamped onto the circumference of the plate cylinder 2, the front edge of which is fixed at another point on the circumference of the plate cylinder 2 and the rear edge of which with a radially inward bend 6 into a clamping slot 7 of the clamping and clamping device engages in which the rear end of the pressure plate 5 is held and by which the pressure plate is clamped on the circumference of the plate cylinder. This clamping device consists of two clamping strips 8 and 9, on the outer ends of which cross-sectional ends are formed which enclose the clamping slot 7. Both terminal strips 8 and 9 are arranged in a frame 10 which is guided in the channel 4 of the plate cylinder 2 between stable stop positions approximately radially movable, so that the two terminal strips 8 and 9 with the clamping slot 7 at least partially out of the cross-sectional contour of the plate cylinder 2 and are retractable so far radially inwards that the peripheral rear edge of the pressure plate 5 lies within the cross-sectional contour of the plate cylinder. The rear in the tensioning direction of the pressure plate 5, that is to say in the drawing the left clamping strip 8 is supported in cross section as a double lever by means of a shaft 11, shaft extensions or the like in a crowned groove of the frame 10. The inner end of this double lever is held by a prestressed spring 12 in the direction of the tension of the pressure plate 5 on the circumference of the plate cylinder 2 permanently charged. On the opposite side against the inner end of the double lever of the terminal block 8, an advantageously pneumatically actuated adjusting unit 20 is effective, which, when actuated, pivots the double lever against the spring 12 in order to release the tension of the pressure plate on the plate cylinder 2 and at the same time the clamping device. The other terminal block 9 also has a spherical projection 13 approximately in the cross section, which is supported radially outside the axis of the shaft 11 in a ball socket against the terminal block 8. The inner end of this clamping bar 9 engages with a projection 14 in a recess 15 in the frame 10, whereby the clamping bar 9 is held in its drawn position on the one hand, but on the other hand is sufficiently movable for tensioning and releasing the tensioning and clamping device. A frame 10 of approximately U-shaped design with a bottom land surface 24, a flat outer land surface 25 on one outside and flat partial area surfaces 26 and 27 on the other outside of the legs is advantageous. This enables the frame 10 to be guided in the guide surfaces 28 of the channel 4 of the plate cylinder 2 by means of linear roller bearings 16 in order to achieve smooth and play-free mobility of the frame. The trough-shaped, cross-sectionally U-shaped frame 10 can be inserted axially into the channel 4 from one end face and engages under approximately parallel counter surfaces 29 in the channel 4 of the plate cylinder with supporting surfaces 17 running approximately tangentially. Between these support surfaces 17 and the body of the plate cylinder 4 springs 18 and 19 are biased on both sides of the channel, which permanently load the frame 10 in the direction of the axis of the plate cylinder 2.

Unter dem Rahmen 10 sind vorteilhaft pneumatisch beaufschlagte Verstelleinheiten 21 und 22 angeordnet, die im unbelasteten Zustand radial nach innen gerichtet eine formschlüssige Kraftübertragung ermöglichen. In Umfangsrichtung erfolgt diese formschlüssige Kraftübertragung durch die Wälzlagerkörper 16. Bei Beaufschlagung der Verstelleinheiten 21 und 22 wird die Kraft der Federn 18 und 19 überwunden, so daß der Rahmen 10 mit den Klemmleisten 8 und 9 nach außen und der Klemmschlitz 7 wenigstens teilweise aus dem Bereich der Querschnittskontur des Plattenzylinders 2 herausgefahren wird. Eine Beaufschlagung der gegen das innere Ende der Klemmleiste 8 wirksamen Verstelleinheit 20 führt zur überwindung der Federkraft 12, so daß die Klemmleiste 8 um die Welle 11 schwenkt und der Klemmschlitz 7 geöffnet wird. In dieser Position kann die Druckplatte 5 durch Verdrehung des gegeneinander angestellten Gummituchzylinders 1 und des Plattenzylinders 2 gegen den Umfang des Plattenzylinders 2 und gleichzeitig die hintere Abkantung 6 der Druckplatte in den Klemmschlitz 7 hineingedrückt werden. Die Klemmung dieser Abkantung erfolgt bei Entlastung der Verstelleinheit 20. Durch Entlastung der Verstelleinheiten 21 und 22 drücken die Federn 18 und 19 den Rahmen 10 mit den Klemmleisten 8 und 9 radial nach innen in eine stabile Anschlaglage, In der die periphere Hinterkante der Druckplatte 5 innerhalb der Querschnittskontur des Plattenzylinders 2 liegt. Weitere Hilfsmittel sind dazu nicht erforderlich. Insbesondere ist keine besondere Vorrichtung zum Eindrücken der hinteren Abkantung 6 der Druckplatte 5 erforderlich. Es ist lediglich darauf zu achten, daß der Gummituchzylinder 1 mit seinem Umfang die hintere Abkantung 6 der Druckplatte 5 erreicht. Dies kann durch einen entsprechend eng ausgebildeten Kanal im Gummituchzylinder 1 oder gegebenenfalls durch eine vorübergehende Verdrehung des Gummituchzylinders 1 gegenüber dem Plattenzylinder 2 während der Betätigung der Klemmvorrichtung erreicht werden, wie dies in der Figur 3 schematisch dargestellt ist.Adjustment units 21 and 22, which are acted upon pneumatically, are advantageously arranged under the frame 10 and, in the unloaded state, enable radially inward directed force transmission. This positive force transmission takes place in the circumferential direction through the roller bearing body 16. When the adjusting units 21 and 22 are acted upon, the force of the springs 18 and 19 is overcome, so that the frame 10 with the clamping strips 8 and 9 to the outside and the clamping slot 7 are at least partially moved out of the area of the cross-sectional contour of the plate cylinder 2. Actuation of the adjusting unit 20, which is effective against the inner end of the clamping strip 8, overcomes the spring force 12, so that the clamping strip 8 pivots about the shaft 11 and the clamping slot 7 is opened. In this position, the printing plate 5 can be pressed into the clamping slot 7 by rotating the rubber blanket cylinder 1 and the plate cylinder 2 against the circumference of the plate cylinder 2 and at the same time the rear edge 6 of the printing plate. This bend is clamped when the adjustment unit 20 is relieved. By relieving the adjustment units 21 and 22, the springs 18 and 19 press the frame 10 with the clamping strips 8 and 9 radially inward into a stable stop position, in which the peripheral rear edge of the pressure plate 5 is inside the cross-sectional contour of the plate cylinder 2 lies. No other tools are required. In particular, no special device for pressing in the rear fold 6 of the pressure plate 5 is required. It is only necessary to ensure that the blanket cylinder 1 reaches the rear edge 6 of the printing plate 5 with its circumference. This can be achieved by a correspondingly narrow channel in the blanket cylinder 1 or, if appropriate, by a temporary rotation of the blanket cylinder 1 relative to the plate cylinder 2 during the actuation of the clamping device, as is shown schematically in FIG.

TeilelisteParts list

11
GummituchzylinderBlanket cylinder
22nd
PlattenzylinderPlate cylinder
33rd
Kanalchannel
44th
Kanalchannel
55
Druckplatteprinting plate
66
AbkantungFolding
77
KlemmschlitzClamping slot
88th
Klemmleiste (Spannleiste)Terminal strip
99
KlemmleisteTerminal block
1010th
Rahmenframe
1111
Wellewave
1212
Federfeather
1313
Vorsprunghead Start
1414
Vorsprunghead Start
1515
AusnehmungRecess
1616
Wälzlagerroller bearing
1717th
StützflächenSupport surfaces
1818th
Federfeather
1919th
Federfeather
2020th
VerstelleinheitAdjustment unit
2121
VerstelleinheitAdjustment unit
2222
VerstelleinheitAdjustment unit
2323
GummituchRubber blanket
2424th
BodenstegflächeFloor space
2525th
StegflächeWeb surface
2626
TeilbereichsflächePartial area
2727
TeilbereichsflächePartial area
2828
FührungsflächeLeadership area
2929
GegenflächeCounter surface

Claims (11)

Klemm- und Spannvorrichtung für die nach innen abgewinkelte Hinterkante einer flexiblen Druckplatte in einem axialen Kanal am Umfang eines mit einem Gummituchzylinder im Achsabstand verstellbar zusammenwirkenden Plattenzylinders, auf den die in ihrer Vorderkante festgelegte Druckplatte in Umfangsrichtung spannbar ist, bestehend aus zwei in dem Kanal beweglich abgestützten Klemmleisten, die innerhalb der Querschnittskontur des Plattenzylinders einen axial in dem Kanal verlaufenden Spannschlitz zur Aufnahme der abgewinkelten Hinterkante der Druckplatte bilden und durch reversible Klemmkräfte gegeneinander sowie durch reversible Spannkräfte gemeinsam in Spannrichtung der Druckplatte belastbar sind, die sich jeweils gegen den Plattenzylinder abstützen,
daddurch gekennzeichnet,
daß die Klemmvorrichtung in dem Kanal (4) des Plattenzylinders (2) radial beweglich angeordnet und durch Antriebskräfte mit den radial äußeren Kanten der den Spannschlitz bildenden Klemmleisten (8, 9) wenigstens bis zur Umfangskontur des Querschnitts des Plattenzylinders (2) radial nach außen beweglich mit der geklemmten Abkantung (6) der Hinterkante der Druckplatte (5) innerhalb der Kontur des Plattenzylinders (2) zurückbeweglich ist.Clamping and tensioning device for the inwardly angled rear edge of a flexible pressure plate in an axial channel on the circumference of a plate cylinder that cooperates with a rubber blanket cylinder that can be adjusted in axial distance, on which the pressure plate defined in its front edge can be clamped in the circumferential direction, consisting of two movably supported in the channel Clamping strips, which form an axially extending clamping slot in the channel for receiving the angled rear edge of the pressure plate within the cross-sectional contour of the plate cylinder and can be loaded against one another by reversible clamping forces as well as reversible clamping forces in the clamping direction of the pressure plate, which are each supported against the plate cylinder,
characterized by
that the clamping device in the channel (4) of the plate cylinder (2) is arranged to be radially movable and can be moved radially outward by drive forces with the radially outer edges of the clamping strips (8, 9) forming the clamping slot, at least up to the circumferential contour of the cross section of the plate cylinder (2) with the clamped fold (6) of the rear edge of the pressure plate (5) can be moved back within the contour of the plate cylinder (2). Klemm- und Spannvorrichtung nach Anspruch 1,
daddurch gekennzeichnet,
daß die abgewinkelte Hinterkante (6) der Druckplatte (5) durch den Gummituchzylinder (1) in den Klemmschlitz (7) zwischen den radial ausgefahrenen Spannleisten (8, 9) eindrückbar ist.Clamping and tensioning device according to claim 1,
characterized by
that the angled rear edge (6) of the pressure plate (5) can be pressed through the blanket cylinder (1) into the clamping slot (7) between the radially extended clamping bars (8, 9). Klemm- und Spannvorrichtung nach den Ansprüchen 1 und 2,
daddurch gekennzeichnet,
daß die Klemmleisten (8, 9) beweglich in einem in dem Kanal (4) des Plattenzylinders (2) radial beweglich geführten Rahmen (10) angeordnet und die auf die Klemmleisten (8, 9) wirksamen Klemm- und Spannkräfte andererseits gegen den Rahmen (10) abgestützt sind.Clamping and tensioning device according to claims 1 and 2,
characterized by
that the clamping bars (8, 9) are movably arranged in a frame (10) guided radially movably in the channel (4) of the plate cylinder (2) and the clamping and clamping forces acting on the clamping bars (8, 9) on the other hand against the frame ( 10) are supported. Klemm- und Spannvorrichtung nach den Ansprüchen 1 bis 3,
daddurch gekennzeichnet,
daß der Rahmen (10) durch sich gegen den Plattenzylinder (2) abstützende Federkräfte radial nach innen belastet und durch pneumatisch beaufschlagbare Verstelleinheiten (21, 22) gegen die Wirkung der Federkräfte (18, 19) radial nach außen bis in eine Aufnahmeposition für die Abkantung (6) der Druckplatte (5) durch die Klemmleisten (8, 9) verschiebbar ist.Clamping and tensioning device according to claims 1 to 3,
characterized by
that the frame (10) is loaded radially inwards by spring forces supporting itself against the plate cylinder (2) and by means of pneumatically actuated adjusting units (21, 22) against the action of the spring forces (18, 19) radially outwards into a receiving position for the fold (6) the pressure plate (5) through the terminal strips (8, 9) is displaceable. Klemm- und Spannvorrichtung nach den Ansprüchen 1 bis 4,
daddurch gekennzeichnet,
daß der Rahmen (10) mittels Wälzlager (16) in der Führung im Kanal (4) des Plattenzylinders (2) geführt ist.Clamping and tensioning device according to claims 1 to 4,
characterized by
that the frame (10) by means of roller bearings (16) in the guide in the channel (4) of the plate cylinder (2) is guided. Klemm- und Spannvorrichtung nach den Ansprüchen 1 bis 5,
daddurch gekennzeichnet,
daß die beiden Klemmleisten (8, 9) sich in einem im Querschnitt kalottenfoermigen Gelenk (13) gegeneinander und mit ihren inneren Enden gegen den Rahmen (10) abstützen, und daß eine Feder (12) das äußere Ende der beiden Klemmleisten (8, 9) in Spannrichtung der auf den Umfang des Plattenzylinders (2) aufgespannten Druckplatte (5) belastet.Clamping and tensioning device according to claims 1 to 5,
characterized by
that the two terminal strips (8, 9) are supported in a joint (13) with a cross section in the form of a spherical cap against one another and with their inner ends against the frame (10), and that a spring (12) supports the outer end of the two terminal strips (8, 9 ) in the clamping direction of the pressure plate (5) clamped on the circumference of the plate cylinder (2). Klemm- und Spannvorrichtung nach den Ansprüchen 1 bis 6,
daddurch gekennzeichnet,
daß die in Spannrichtung der Druckplatte (5) hintere Klemmleiste (8) als Spannleiste wirksam ist und radial innerhalb des kalottenförmigen Gelenks (13) beider Klemmleisten (8, 9) auf einer sich axial in dem Kanal (4) des Plattenzylinders (2) erstreckenden Welle (11) kippbar in dem Rahmen (10) gelagert ist.Clamping and tensioning device according to claims 1 to 6,
characterized by
that the rear clamping strip (8) in the clamping direction of the pressure plate (5) is effective as a clamping strip and extends radially within the spherical joint (13) of both clamping strips (8, 9) on an axially in the channel (4) of the plate cylinder (2) Shaft (11) is tiltably mounted in the frame (10). Klemm- und Spannvorrichtung nach den Ansprüchen 1 bis 7,
daddurch gekennzeichnet,
daß am inneren Ende der als Spannleiste wirksamen Klemmleiste (8) eine sich gegen den Rahmen abstützende, pneumatisch beaufschlagbare Verstelleinrichtung (20) anliegt, welche bei ihrer Beaufschlagung die Spannkräfte der Spannfeder (12) überwindet, die die Klemmleisten (8, 9) im Klemmschlitz (7) gegeneinander und gemeinsam in Spannrichtung permanent belastet.Clamping and tensioning device according to claims 1 to 7,
characterized by
that at the inner end of the clamping strip (8), which acts as a clamping strip, there is a pneumatically actuable adjusting device (20) which is supported against the frame and which, when acted upon, overcomes the clamping forces of the tensioning spring (12) which the clamping strips (8, 9) in the clamping slot (7) permanently loaded against each other and together in the clamping direction. Klemm- und Spannvorrichtung nach den Ansprüchen 1 bis 8,
daddurch gekennzeichnet,
daß der Rahmen (10) im Querschnitt des Kanals (4) im Plattenzylinder (2) etwa u-förmig ausgebildet ist, sich mit einer Bodenstegfläche (24) auf pneumatisch beaufschlagbare Verstelleinrichtungen (21, 22) im Kanal (4) abstützt und an den radial nach außen gerichteten Schenkelenden durch radial zur Mitte des Plattenzylinders (2) wirksame Federn (18, 19) belastet ist.Clamping and tensioning device according to claims 1 to 8,
characterized by
that the frame (10) in cross section of the channel (4) in the plate cylinder (2) is approximately U-shaped, is supported with a bottom land surface (24) on pneumatically actuated adjusting devices (21, 22) in the channel (4) and on the radially outwardly directed leg ends are loaded by springs (18, 19) effective radially to the center of the plate cylinder (2). Klemm- und Spannvorrichtung nach den Ansprüchen 1 bis 9,
daddurch gekennzeichnet,
daß die die als Spannleiste wirksame und sich etwa mittig mit einem ballig ausgeführten Stützlager (11) gegen den einen Schenkel des u-förmigen Trogprofils des Rahmens (10) abstützende Klemmleiste (8) belastende Feder (12) sich einerseits gegen das radial innere Ende dieser Spannleiste (8) und andererseits nahe am Steg gegen den anderen Schenkel des Profils abstützt.Clamping and tensioning device according to claims 1 to 9,
characterized by
that the clamping bar (8), which acts as a clamping bar and is supported approximately centrally with a spherical support bearing (11) against the one leg of the U-shaped trough profile of the frame (10), loading spring (12) is supported on the one hand against the radially inner end of this tensioning strip (8) and on the other hand close to the web against the other leg of the profile. Klemm- und Spannvorrichtung nach den Ansprüchen 1 bis 10,
daddurch gekennzeichnet,
daß der Rahmen (10) beidseitig etwa tangential zur Achse des Plattenzylinders ausgebildete Stützflächen (17) aufweist, die parallel dazu verlaufende Gegenflächen (29) im Kanal (4) des Plattenzylinders (2) hintergreifen, und daß zwischen den Stützflächen (17) und den Gegenflächen (29) Federn (18, 19) vorgespannt sind.Clamping and tensioning device according to claims 1 to 10,
characterized by
that the frame (10) on both sides has approximately tangential to the axis of the plate cylinder formed support surfaces (17), which extend parallel to the opposite surfaces (29) in the channel (4) of the plate cylinder (2), and that between the support surfaces (17) and Counter surfaces (29) springs (18, 19) are biased.
EP93103370A 1992-03-30 1993-03-03 Device for clamping and tensioning a printing plate in a printing machine Expired - Lifetime EP0563601B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4210316A DE4210316C2 (en) 1992-03-30 1992-03-30 Clamping and clamping device for a printing plate in a printing machine
DE4210316 1992-03-30

Publications (2)

Publication Number Publication Date
EP0563601A1 true EP0563601A1 (en) 1993-10-06
EP0563601B1 EP0563601B1 (en) 1996-03-20

Family

ID=6455377

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103370A Expired - Lifetime EP0563601B1 (en) 1992-03-30 1993-03-03 Device for clamping and tensioning a printing plate in a printing machine

Country Status (5)

Country Link
US (1) US5359933A (en)
EP (1) EP0563601B1 (en)
JP (1) JPH06126936A (en)
CN (1) CN1077418A (en)
DE (1) DE4210316C2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275446A (en) * 1993-02-27 1994-08-31 Heidelberger Druckmasch Ag The execution of worksteps in a cylinder of a printing press
EP0788881B1 (en) * 1996-01-22 2001-04-04 Heidelberger Druckmaschinen Aktiengesellschaft Clamping and pulling device for sleeves for cylinders in printing machines
WO2005110752A2 (en) * 2004-05-10 2005-11-24 Maschinenfabrik Wifag Clamping device

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4326251C2 (en) * 1993-08-05 1997-08-28 Koenig & Bauer Albert Ag Rubber / blanket cylinder
FR2709091B1 (en) * 1993-08-20 1995-11-10 Heidelberg Harris Sa Interchangeable blade device for holding a printing plate on a plate cylinder in a rotary printer, and blade disassembly tool.
US5413042A (en) * 1994-02-22 1995-05-09 Heidelberg Druckmaschinen Ag Lock-up assembly for securing a printing plate on a plate cylinder
US5516096A (en) * 1994-05-10 1996-05-14 Polaroid Corporation Method and apparatus for securing a flexible sheet to a rotatable supporting surface
JPH08183166A (en) * 1994-12-28 1996-07-16 Riso Kagaku Corp Printing paper start end fitting device for rotary screen process printer
FR2735418B1 (en) * 1995-06-19 1997-08-22 Heidelberg Harris Sa DEVICE FOR EXCHANGING PLATES OF PRINTING UNITS OF PRINTING MACHINES
US5553545A (en) * 1995-09-26 1996-09-10 Heath Custom Press, Inc. Plate clamping and tensioning apparatus for rotary printing press
CN1097512C (en) * 1996-05-30 2003-01-01 北人印刷机械股份有限公司 Device for impacting and tightening forme
DE19701955C2 (en) * 1997-01-22 1998-12-03 Roland Man Druckmasch Fastening device for printing forms
DE10056167A1 (en) * 1999-11-15 2001-05-17 Heidelberger Druckmasch Ag Tension device for indentation on surface of printing cylinder in printing apparatus of rotary printing press has locking and unlocking of tension element on tension shaft
DE20023414U1 (en) * 1999-12-02 2004-02-26 Koenig & Bauer Ag Transfer cylinder of a rotary printing press
WO2002030678A2 (en) 2000-10-12 2002-04-18 Creo Srl Method and apparatus for reduction of undesirable printing artifacts
DE10058996C1 (en) * 2000-11-28 2002-06-13 Koenig & Bauer Ag Pulling-up mechanism fixing device has channel with single one-lever fixing device in each section perpendicular to axial direction of cylinder
DE10307382A1 (en) * 2002-12-16 2004-07-08 Koenig & Bauer Ag Printing blanket assembly for a printed blanket cylinder of a rotary printing press comprises a dimensionally stable support plate and a printing blanket fixed to the outer side of the support plate
DE102004008723A1 (en) * 2004-02-23 2005-09-15 Man Roland Druckmaschinen Ag Printing cylinder with a clamping channel
DE102005002684A1 (en) * 2005-01-20 2006-08-03 Man Roland Druckmaschinen Ag Plate cylinder with a device for fixing circumferentially attachable printing plates
DE102008047191A1 (en) * 2007-10-01 2009-04-02 Heidelberger Druckmaschinen Ag Device for fastening a printing plate on a plate cylinder of a printing machine
DE102008060557B4 (en) 2008-12-04 2018-11-22 Heidelberger Druckmaschinen Ag Method for applying an elevator sheet to a printing cylinder of an offset printing machine
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
CN102161256A (en) * 2010-12-22 2011-08-24 江苏闳业机械有限公司 Fancy roller clamping device
JP5638167B2 (en) * 2011-06-30 2014-12-10 ケーニツヒ ウント バウエル アクチエンゲゼルシヤフトＫｏｅｎｉｇ ＆ Ｂａｕｅｒ Ａｋｔｉｅｎｇｅｓｅｌｌｓｃｈａｆｔ A method of attaching and registering a printing plate to a plate cylinder of a multicolor offset printing press
DE102013218657A1 (en) * 2013-09-18 2015-03-19 Koenig & Bauer Aktiengesellschaft Method for stretching a cylinder lift clamped onto a cylinder of a rotary printing machine
DE102016201236A1 (en) * 2015-02-24 2016-08-25 Heidelberger Druckmaschinen Ag Printing press cylinder
DE102016125012A1 (en) * 2015-12-31 2017-07-06 manroland sheetfed GmbH Pressure plate clamps
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
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411731A2 (en) * 1989-08-04 1991-02-06 Komori Corporation Plate-lockup apparatus for sheet-fed press
EP0493772A1 (en) * 1990-12-31 1992-07-08 Heidelberger Druckmaschinen Aktiengesellschaft Clamping device and tensioning device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012841A (en) * 1956-01-13 1961-12-12 Fairchild Camera Instr Co Sheet cylinder for image reproducing machines
US3715981A (en) * 1970-06-29 1973-02-13 Hamilton Tool Co Fluid actuator and lock for printing plate cylinders
US4191106A (en) * 1975-12-01 1980-03-04 K and Manufacturing Company, Inc. Printing plate clamping assembly
DE3116506C2 (en) * 1981-04-25 1984-05-17 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device for fastening a printing plate on the forme cylinder of a rotary printing press
DE3626243A1 (en) * 1986-08-02 1988-02-04 Koenig & Bauer Ag PRINT PLATE FASTENING AND TENSIONING DEVICE
JP2726661B2 (en) * 1986-09-18 1998-03-11 三菱重工業株式会社 Plate insertion device for sheet-fed printing press
DE3702032A1 (en) * 1987-01-24 1988-08-04 Basf Ag DEVICE FOR TENSIONING PRINTING PLATES
US4890555A (en) * 1987-06-03 1990-01-02 Motter Printing Press Co. Printing press plate lockup
DE3731039A1 (en) * 1987-09-16 1989-03-30 Koenig & Bauer Ag DEVICE FOR CLAMPING FLEXIBLE PRINT PLATES ON THE PLATE CYLINDER OF A ROTARY PRINTING MACHINE
DE3731684A1 (en) * 1987-09-21 1989-04-06 Koenig & Bauer Ag CLAMPING DEVICE
DE3925732C1 (en) * 1989-08-03 1991-01-17 Holmer, Alfons, 8306 Schierling, De
DE4129831C3 (en) * 1990-12-21 1998-08-13 Heidelberger Druckmasch Ag Quick clamp device
ES2080879T3 (en) * 1990-12-21 1996-02-16 Heidelberger Druckmasch Ag QUICK FASTENING DEVICE.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0411731A2 (en) * 1989-08-04 1991-02-06 Komori Corporation Plate-lockup apparatus for sheet-fed press
EP0493772A1 (en) * 1990-12-31 1992-07-08 Heidelberger Druckmaschinen Aktiengesellschaft Clamping device and tensioning device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2275446A (en) * 1993-02-27 1994-08-31 Heidelberger Druckmasch Ag The execution of worksteps in a cylinder of a printing press
FR2701892A1 (en) * 1993-02-27 1994-09-02 Heidelberger Druckmasch Ag Method and apparatus for executing work steps in a cylinder of a printing machine
US5440989A (en) * 1993-02-27 1995-08-15 Heidelberger Druckmaschinen Ag Method and device for performing worksteps on a cylinder of a printing press
GB2275446B (en) * 1993-02-27 1996-04-10 Heidelberger Druckmasch Ag Process and device for the execution of worksteps in a cylinder of a printing press
EP0788881B1 (en) * 1996-01-22 2001-04-04 Heidelberger Druckmaschinen Aktiengesellschaft Clamping and pulling device for sleeves for cylinders in printing machines
WO2005110752A2 (en) * 2004-05-10 2005-11-24 Maschinenfabrik Wifag Clamping device
WO2005110752A3 (en) * 2004-05-10 2006-06-08 Wifag Maschf Clamping device

Also Published As

Publication number Publication date
JPH06126936A (en) 1994-05-10
DE4210316C2 (en) 1994-02-24
EP0563601B1 (en) 1996-03-20
DE4210316A1 (en) 1993-10-07
US5359933A (en) 1994-11-01
CN1077418A (en) 1993-10-20

Similar Documents

Publication Publication Date Title
EP0563601B1 (en) Device for clamping and tensioning a printing plate in a printing machine
DE3824040C1 (en) Clamping device for axially clamping a tool, in particular a disk
EP0386531B1 (en) Folder
EP0348806A2 (en) Device for coupling a web-roll spindle or the like to a trailing shaft
DE19521645C2 (en) Device for a slit-shaped holding device
DE2910829C2 (en) Width-adjustable spreading device for round chair goods
EP1056556B1 (en) Flanging device with pressing and clamping elements
DE4227683C2 (en) Sheet-fed offset printing machine equipped for automated plate change
DE1774749A1 (en) Expandable mandrel
DE2112651B2 (en) Clamping and releasing device for tools on drilling, milling and similar machine tools
DE2155615B2 (en) Tool head for FaIt and / or thread forming machines
EP1282520B1 (en) Devices for pressing a blanket on a cylinder
DE10201384B4 (en) friction coupling
DE2249506C3 (en) Pneumatically operated vice
DE3121240C2 (en)
DE19701046A1 (en) Fixture such as covering printing plate on printer cylinder
EP0483535A1 (en) Gripping device for securing thin covers on sheet-guiding cylinders in rotary printing machines for sheets
DE19509562C1 (en) Device for releasing plates from a cylinder
DE3922474C2 (en)
DE3717510C2 (en)
WO2001087613A1 (en) Method and devices for pressing a blanket against a cylinder
EP0899056A1 (en) Device for clamping and/or holding workpieces on a turning machine
EP0788881B1 (en) Clamping and pulling device for sleeves for cylinders in printing machines
DE19939986A1 (en) Tire building drum with spreading device
DE1605708B2 (en) TIRE MOUNTING AND REMOVING MACHINE

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19930303

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB NL

GBC Gb: translation of claims filed (gb section 78(7)/1977)
17Q First examination report despatched

Effective date: 19950419

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): FR GB

RBV Designated contracting states (corrected)

Designated state(s): FR GB

NLV5 Nl: annulment (art. 75)
ET Fr: translation filed
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

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

Effective date: 19960620

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

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

Ref country code: GB

Payment date: 19980630

Year of fee payment: 6

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

Ref country code: GB

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

Effective date: 19990303

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

Effective date: 19990303

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

Ref country code: FR

Payment date: 20030320

Year of fee payment: 11

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

Ref country code: FR

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

Effective date: 20041130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST