EP0788881A1 - Clamping and pulling device for sleeves for cylinders in printing machines - Google Patents

Clamping and pulling device for sleeves for cylinders in printing machines Download PDF

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Publication number
EP0788881A1
EP0788881A1 EP96120587A EP96120587A EP0788881A1 EP 0788881 A1 EP0788881 A1 EP 0788881A1 EP 96120587 A EP96120587 A EP 96120587A EP 96120587 A EP96120587 A EP 96120587A EP 0788881 A1 EP0788881 A1 EP 0788881A1
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EP
European Patent Office
Prior art keywords
clamping
cylinder
edge
abutment
elevator
Prior art date
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Granted
Application number
EP96120587A
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German (de)
French (fr)
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EP0788881B1 (en
Inventor
Jens Friedrichs
Bernd Ruf
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP0788881A1 publication Critical patent/EP0788881A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings

Definitions

  • the invention relates to a clamping and pulling device for elevators of cylinders in printing machines according to the preamble of claim 1.
  • clamping strips are arranged in a frame and can be pressed against one another by clamping forces with their cheek surfaces, the frame being movable radially in the cylinder channel to the cylinder axis guided and the clamping slot formed by the jaw surfaces of the clamping strips with its radially outer boundary at least up to the circumferential contour of the cylinder cross section and with the clamped fold of the trailing edge of the printing plate can be moved back within the contour of the plate cylinder, in order to exert a pulling action on the printing plate.
  • Both clamping strips are supported in the known arrangement against each other and each against the frame and thus against the plate cylinder, with an actuator acting on a clamping strip exerting the clamping forces on the clamping jaws and two further actuators the clamping forces in the circumferential direction of the plate cylinder on the frame.
  • An additional pressure roller is also required to bring the plate onto the cylinder without a hollow position. As a result, the effort for such a tensioning and pulling device is relatively high.
  • the invention has for its object to design an inexpensive clamping and pulling device which is generally suitable for cylinder lifts both on its front edge and on its rear edge, and which enables the elevator to be bent smoothly against the channel edge, which may have a different radius.
  • the invention solves this problem by a clamping and pulling device with the features according to claim 1.
  • the particular advantage of the device is that with the clamping movement, a pulling movement is immediately exerted in the tensioning direction of the elevator, so that the cylinder lift guided around the edge of the cylinder channel with a curvature deviating from the edge radius is pulled against the cylinder edge.
  • the features of the invention enable the elevator to be pulled around the channel edge. It is thereby avoided that a circumferential bead is formed on the edge of the elevator because no air remains between the edge radius of the cylinder channel and the radius of curvature of the edge of the elevator.
  • the solution of the task according to the invention basically comes with a gripping element consisting of a movably arranged clamping strip and a cheek surface which is fixedly arranged in the cylinder channel.
  • a clamping and pulling device with these features is suitable for printing plates, blankets and other cylinder lifts, preferably in sheet-fed rotary printing machines.
  • the device can be used both for clamping the front edge of the elevator and the rear edge of the elevator and for simultaneously pulling the ends of the elevator. It is constructive at its narrowest To accommodate space and has no failure-prone mechanism.
  • the clamping and pulling device is arranged in the circumferentially open and axially extending channel 1 of a cylinder 2 of a printing press, preferably a sheet-fed rotary printing press.
  • the elevator 3 arranged on the cylinder circumference has on its front edge a bevel 4 which engages in a clamping slot 5 in a manner known per se.
  • a recess 6 of the cylinder channel 1 two clamping strips 7.1 and 7.2 are arranged, of which a clamping strip 7.1 has a hook-shaped cross section and rests with its web on a spring 8.
  • the other terminal block 7.2 is supported against an abutment 9 formed by the recess 6.
  • the clamping strips 7.1 and 7.2 rest with their clamping jaws 10.1 and 10.2 on opposite sides on the inner end of the fold 4 of the elevator 3.
  • One terminal block 7.1 is supported with that of the jaw 10.1 opposite end against a movable in the cylinder 2 abutment 9.1.
  • an angular position of the clamping strips 7.1 and 7.2 relative to one another is defined in which the angular apex is opposite to the clamping direction.
  • One of the two terminal strips 7 is hook-shaped in cross section, so that it engages around the inner edge of the bevel 4 and engages under the terminal strip 7.2 for support.
  • a clamping screw 15 can be screwed into the nut thread of a strip 11 against the outside of one of the two clamping strips 7.1, so that the two clamping strips 7.1 and 7.2 can be loaded in the direction of their mutual extended position by this clamping screw 15.
  • the clamping strip 7.2 is loaded in the tensioning direction by a spring 13 which is considerably weaker than the spring 8.
  • the spring 8 presses the terminal block 7.1 and thus also the terminal block 7.2 upwards against the weaker spring 13, so that the jaw surfaces 10.1 and 10.2 release the inner end of the bend 4.
  • the movable abutment 9.1 can be moved by any actuators 16 to increase the angular position between the two terminal strips 7.1 and 7.2. Alternatively, this can also be achieved by an eccentric 20.
  • the terminal block 7 is in this example also designed as a rolling body or rotating body with a round cross section and rotatably supported in the cylinder 2.
  • a number of comb-like projections 17 are provided, which engage in one or more cutouts 18 of the folded end of the elevator 3 when the clamping bar 7 is rotated.
  • the front edge of the projection 17 on the circumference of the terminal strip 9 during tensioning in the direction of rotation comes to bear against the limitation of the cutout 18 in the fold 4, so that tensioning forces are exerted on the elevator 3.
  • Contact of the projection 17 with the cylinder 2 is avoided by a recess 19 in the cylinder 2.
  • Actuators, for example set screws according to the description of FIG. 1, or worm drives are suitable for rotating the terminal strip 7.
  • Figure 2 shows the released position
  • Figure 3 shows the clamping position.
  • the terminal strip can possibly be arranged on the circumference of a body rotatable by the action of force in a bearing in the cylinder 2, the axis of rotation of which runs approximately parallel to the fold. If necessary, the terminal strip can consist of a limited elastic material with a large coefficient of friction.

Abstract

Gripper elements (7) are positioned in a duct (1) running axially over the periphery of the cylinder (2). The gripper elements pick up and hold one end of the dressing (3) extending round one duct edge (1a) into the duct. The gripper elements gripping the edge of the cylinder dressing move into the duct when power-driven and pull the cylinder dressing round the duct's edge. The gripper elements may consist of at least one clamping lug (7) movable in the tensioning direction and one fixed jaw surface (10) of an abutment on the cylinder. Two clamping lugs (7.1,7.2) may face the clamping jaw (10.1,10.2) and may each support an abutment (9) on the cylinder.

Description

Die Erfindung bezieht sich auf eine Klemm- und Ziehvorrichtung für Aufzüge von Zylindern in Druckmaschinen nach dem Oberbegriff des Patentanspruches 1.The invention relates to a clamping and pulling device for elevators of cylinders in printing machines according to the preamble of claim 1.

Bei einer solchen bekannten Klemm- und Ziehvorrichtung für die abgewinkelte Hinterkante der Druckplatte auf einem Plattenzylinder einer Bogenrotationsdruckmaschine nach DE 42 27 683 C2 sind Klemmleisten in einem Rahmen angeordnet und durch Spannkräfte mit ihren Backenflächen gegeneinander preßbar, wobei der Rahmen in dem Zylinderkanal radial zur Zylinderachse beweglich geführt und der durch die Backenflächen der Klemmleisten gebildete Klemmschlitz mit seiner radial äußeren Begrenzung wenigstens bis zur Umfangskontur des Zylinderquerschnitts nach außen und mit der eingeklemmten Abkantung der Hinterkante der Druckplatte innerhalb der Kontur des Plattenzylinders zurückbeweglich ist, um dadurch eine Ziehwirkung auf die Druckplatte auszuüben. Beide Klemmleisten stützen sich bei der bekannten Anordnung gegeneinander und jeweils gegen den Rahmen und somit gegen den Plattenzylinder ab, wobei ein auf die eine Klemmleiste einwirkendes Stellglied die Klemmkräfte auf die Klemmbacken und zwei weitere Stellglieder die Spannkräfte in Umfangsrichtung des Plattenzylinders auf den Rahmen ausüben. Es wird außerdem eine zusätzliche Andrückrolle benötigt, um die Platte ohne Hohllage auf den Zylinder zu bringen. Dadurch ist der Aufwand für eine solche Spann- und Ziehvorrichtung relativ hoch.In such a known clamping and pulling device for the angled rear edge of the printing plate on a plate cylinder of a sheet-fed rotary printing press according to DE 42 27 683 C2, clamping strips are arranged in a frame and can be pressed against one another by clamping forces with their cheek surfaces, the frame being movable radially in the cylinder channel to the cylinder axis guided and the clamping slot formed by the jaw surfaces of the clamping strips with its radially outer boundary at least up to the circumferential contour of the cylinder cross section and with the clamped fold of the trailing edge of the printing plate can be moved back within the contour of the plate cylinder, in order to exert a pulling action on the printing plate. Both clamping strips are supported in the known arrangement against each other and each against the frame and thus against the plate cylinder, with an actuator acting on a clamping strip exerting the clamping forces on the clamping jaws and two further actuators the clamping forces in the circumferential direction of the plate cylinder on the frame. An additional pressure roller is also required to bring the plate onto the cylinder without a hollow position. As a result, the effort for such a tensioning and pulling device is relatively high.

Der Erfindung liegt die Aufgabe zugrunde, eine kostengünstige Klemm- und Ziehvorrichtung zu gestalten, die allgemein für Zylinderaufzüge sowohl an deren Vorderkante als auch an deren Hinterkante geeignet ist, und die eine glatte Anlage der Abkantung des Aufzuges an die gegebenenfalls einen unterschiedlichen Radius aufweisende Kanalkante ermöglicht.The invention has for its object to design an inexpensive clamping and pulling device which is generally suitable for cylinder lifts both on its front edge and on its rear edge, and which enables the elevator to be bent smoothly against the channel edge, which may have a different radius.

Die Erfindung löst diese Aufgabe durch eine Klemm- und Ziehvorrichtung mit den Merkmalen nach den Patentanspruch 1.The invention solves this problem by a clamping and pulling device with the features according to claim 1.

Der besondere Vorteil der Vorrichtung besteht darin, daß mit der Klemmbewegung sogleich eine Zugbewegung in Spannrichtung des Aufzuges ausgeübt wird, so daß der um die Kante des Zylinderkanals mit einer vom Kantenradius abweichenden Krümmung herumgeführte Zylinderaufzug gegen die Zylinderkante gezogen wird. Die Erfindungsmerkmale ermöglichen das Herumziehen des Aufzuges um die Kanalkante. Es wird dadurch vermieden, daß sich an der Abkantung des Aufzuges ein Umfangswulst ausbildet, weil keine Luft zwischen den Kantenradius des Zylinderkanals und dem Krümmungsradius der Abkantung des Aufzuges verbleibt.The particular advantage of the device is that with the clamping movement, a pulling movement is immediately exerted in the tensioning direction of the elevator, so that the cylinder lift guided around the edge of the cylinder channel with a curvature deviating from the edge radius is pulled against the cylinder edge. The features of the invention enable the elevator to be pulled around the channel edge. It is thereby avoided that a circumferential bead is formed on the edge of the elevator because no air remains between the edge radius of the cylinder channel and the radius of curvature of the edge of the elevator.

Die erfindungsgemäße Lösung der Aufgabe kommt prinzipiell mit einem Greifelement aus einer beweglich angeordneten Klemmleiste und einer demgegenüber feststehend im Zylinderkanal angeordneten Backenfläche aus.The solution of the task according to the invention basically comes with a gripping element consisting of a movably arranged clamping strip and a cheek surface which is fixedly arranged in the cylinder channel.

Bevorzugt wird jedoch eine Lösung, bei der zwei Klemmleisten entsprechend Anspruch 3 vorgesehen sind.However, a solution is preferred in which two terminal strips are provided according to claim 3.

Geeignet ist eine Klemm- und Ziehvorrichtung mit diesen Merkmalen für Druckplatten, Gummitücher und andere Zylinderaufzüge, vorzugsweise in Bogenrotationsdruckmaschinen. Die Vorrichtung kann sowohl zum Klemmen der Vorderkante des Aufzuges als auch der Hinterkante des Aufzuges und zum gleichzeitigen Ziehen der Enden des Aufzuges eingesetzt werden. Sie ist konstruktiv auf engstem Raum unterzubringen und weist keinen störanfälligen Mechanismus auf.A clamping and pulling device with these features is suitable for printing plates, blankets and other cylinder lifts, preferably in sheet-fed rotary printing machines. The device can be used both for clamping the front edge of the elevator and the rear edge of the elevator and for simultaneously pulling the ends of the elevator. It is constructive at its narrowest To accommodate space and has no failure-prone mechanism.

Wesentliche Merkmale zur Gestaltung des Erfindungsgegenstandes enthalten die Ansprüche 3 bis 11.Claims 3 to 11 contain essential features for the design of the subject matter of the invention.

In der Zeichnung sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigen:

Figur 1
einen Querschnitt durch ein Ausführungsbeispiel einer in einem Zylinderkanal angeordneten Klemm- und Ziehvorrichtung,
Figur 2
einen Querschnitt durch ein weiteres Ausführungsbeispiel und
Figur 3
eine Darstellung entsprechend Figur 2 in Klemmstellung.
Exemplary embodiments of the invention are shown in the drawing. Show it:
Figure 1
3 shows a cross section through an exemplary embodiment of a clamping and pulling device arranged in a cylinder channel,
Figure 2
a cross section through a further embodiment and
Figure 3
a representation corresponding to Figure 2 in the clamped position.

Die Klemm- und Ziehvorrichtung nach der Erfindung ist in dem am Umfang offenen und sich in axialer Richtung erstreckenden Kanal 1 eines Zylinders 2 einer Druckmaschine, vorzugsweise einer Bogenrotationsdruckmaschine, angeordnet. Der auf dem Zylinderumfang angeordnete Aufzug 3 weist an seiner Vorderkante eine Abkantung 4 auf, die in einen Klemmschlitz 5 in in sich bekannter weise eingreift. In einer Ausnehmung 6 des Zylinderkanals 1 sind zwei Klemmleisten 7.1 und 7.2 angeordnet, von denen eine Klemmleiste 7.1 einen hakenförmigen Querschnitt aufweist und mit ihrem Steg auf einer Feder 8 ruht. Die andere Klemmleiste 7.2 stützt sich gegen ein durch die Ausnehmung 6 gebildetes Widerlager 9 ab. Die Klemmleisten 7.1 und 7.2 liegen mit ihren Klemmbacken 10.1 und 10.2 auf einander gegenüberliegenden Seiten an dem inneren Ende der Abkantung 4 des Aufzuges 3 an. Die eine Klemmleiste 7.1 stützt sich mit dem der Klemmbacke 10.1 gegenüberliegenden Ende gegen ein in dem Zylinder 2 beweglich angeordnetes Widerlager 9.1 ab. Durch die Widerlager der Klemmleisten 7.1 und 7.2 am Zylinder 2 und durch die Anlage der Klemmbacken 10.1 und 10.2 am inneren Ende der Abkantung 4 wird eine Winkellage der Klemmleisten 7.1 und 7.2 zueinander definiert, bei der der Winkelscheitel der Spannrichtung entgegengerichtet ist. Eine der beiden Klemmleisten 7 ist im Querschnitt hakenförmig ausgebildet, so daß sie die innere Kante der Abkantung 4 umgreift und die Klemmleiste 7.2 zur Abstützung untergreift. Gegen die Außenseite einer der beiden Klemmleisten 7.1 ist eine Spannschraube 15 in dem Muttergewinde einer Leiste 11 verschraubbar, so daß durch diese Spannschraube 15 die beiden Klemmleisten 7.1 und 7.2 in Richtung ihrer gegenseitigen Strecklage belastet werden können. Dadurch werden Klemmkräfte auf das innere Ende der Abkantung 4 und gleichzeitig Ziehkräfte in Spannrichtung des Aufzuges 3 wirksam, so daß der Aufzug stramm um die Kanalkante 1a herumgezogen und eventuelle Luft unter dem mit einer vom Kanalkantenradius abweichenden Krümmung vorhandene Luft herausgedrückt wird. Damit es sicher zur Haftreibung zwischen der Backenfläche 10.2 der Klemmleiste 7.2 und der Abkantung 4 kommt, ist die Klemmleiste 7.2 in Spannrichtung durch eine gegenüber der Feder 8 wesentlich schwächere Feder 13 belastet. Beim Lösen der Spannschraube 15 drückt die Feder 8 die Klemmleiste 7.1 und somit auch die Klemmleiste 7.2 gegen die schwächere Feder 13 nach oben, so daß die Backenflächen 10.1 und 10.2 das innere Ende der Abkantung 4 freigeben. Falls es dabei zu einer sich nicht selbsttätig lösenden Verspannung gekommen sein sollte, kann das bewegliche Widerlager 9.1 durch beliebige Stellglieder 16 zur Vergrößerung der Winkellage zwischen den beiden Klemmleisten 7.1 und 7.2 bewegt werden. Alternativ ist dies auch durch einen Exzenter 20 zu erreichen.The clamping and pulling device according to the invention is arranged in the circumferentially open and axially extending channel 1 of a cylinder 2 of a printing press, preferably a sheet-fed rotary printing press. The elevator 3 arranged on the cylinder circumference has on its front edge a bevel 4 which engages in a clamping slot 5 in a manner known per se. In a recess 6 of the cylinder channel 1, two clamping strips 7.1 and 7.2 are arranged, of which a clamping strip 7.1 has a hook-shaped cross section and rests with its web on a spring 8. The other terminal block 7.2 is supported against an abutment 9 formed by the recess 6. The clamping strips 7.1 and 7.2 rest with their clamping jaws 10.1 and 10.2 on opposite sides on the inner end of the fold 4 of the elevator 3. One terminal block 7.1 is supported with that of the jaw 10.1 opposite end against a movable in the cylinder 2 abutment 9.1. Through the abutment of the clamping strips 7.1 and 7.2 on the cylinder 2 and by the contact of the clamping jaws 10.1 and 10.2 at the inner end of the bend 4, an angular position of the clamping strips 7.1 and 7.2 relative to one another is defined in which the angular apex is opposite to the clamping direction. One of the two terminal strips 7 is hook-shaped in cross section, so that it engages around the inner edge of the bevel 4 and engages under the terminal strip 7.2 for support. A clamping screw 15 can be screwed into the nut thread of a strip 11 against the outside of one of the two clamping strips 7.1, so that the two clamping strips 7.1 and 7.2 can be loaded in the direction of their mutual extended position by this clamping screw 15. As a result, clamping forces on the inner end of the bend 4 and at the same time pulling forces in the tensioning direction of the elevator 3 are effective, so that the elevator is pulled tightly around the channel edge 1a and any air is pressed out under the air with a curvature deviating from the channel edge radius. So that there is static friction between the jaw surface 10.2 of the clamping strip 7.2 and the bevel 4, the clamping strip 7.2 is loaded in the tensioning direction by a spring 13 which is considerably weaker than the spring 8. When loosening the clamping screw 15, the spring 8 presses the terminal block 7.1 and thus also the terminal block 7.2 upwards against the weaker spring 13, so that the jaw surfaces 10.1 and 10.2 release the inner end of the bend 4. If there should not have been a self-releasing tension, the movable abutment 9.1 can be moved by any actuators 16 to increase the angular position between the two terminal strips 7.1 and 7.2. Alternatively, this can also be achieved by an eccentric 20.

Eine abweichende Lösung ist in den Figuren 2 und 3 veranschaulicht. Die Klemmleiste 7 ist in diesem Beispiel ebenfalls als ein Rollkörper oder Drehkörper mit einem runden Querschnitt ausgebildet und im Zylinder 2 drehbar gelagert. Am Umfang dieser Klemmleiste 7 sind mehrere kammartige Vorsprünge 17 vorgesehen, die bei der Verdrehung der Klemmleiste 7 in einen oder in mehrere Ausschnitte 18 des abgekanteten Endes des Aufzuges 3 eingreifen. Die beim Spannen in Drehrichtung vordere Kante des Vorsprunges 17 am Umfang der Klemmleiste 9 kommt dabei gegen die eine Begrenzung des Ausschnittes 18 in der Abkantung 4 zur Anlage, so daß Spannkräfte auf den Aufzug 3 ausgeübt werden. Ein Kontakt des Vorsprunges 17 mit dem Zylinder 2 wird durch eine Ausnehmung 19 im Zylinder 2 vermieden. Zur Verdrehung der Klemmleiste 7 sind Stellantriebe, beispielsweise Stellschrauben entsprechend der Beschreibung zu Figur 1 oder Schneckenantriebe geeignet. Figur 2 zeigt die gelöste Stellung und Figur 3 zeigt die Klemmstellung.A different solution is illustrated in FIGS. 2 and 3. The terminal block 7 is in this example also designed as a rolling body or rotating body with a round cross section and rotatably supported in the cylinder 2. On the circumference of this clamping bar 7, a number of comb-like projections 17 are provided, which engage in one or more cutouts 18 of the folded end of the elevator 3 when the clamping bar 7 is rotated. The front edge of the projection 17 on the circumference of the terminal strip 9 during tensioning in the direction of rotation comes to bear against the limitation of the cutout 18 in the fold 4, so that tensioning forces are exerted on the elevator 3. Contact of the projection 17 with the cylinder 2 is avoided by a recess 19 in the cylinder 2. Actuators, for example set screws according to the description of FIG. 1, or worm drives are suitable for rotating the terminal strip 7. Figure 2 shows the released position and Figure 3 shows the clamping position.

In vereinfachter Ausführung kann die Klemmleiste eventuell am Umfang eines durch Krafteinwirkung in einem Lager im Zylinder 2 verdrehbaren Körpers angeordnet sein, dessen Drehachse etwa parallel zur Abkantung verläuft. Gegebenenfalls kann die Klemmleiste aus einem begrenzt elastischen Werkstoff mit großem Reibungskoeffizienten bestehen.In a simplified embodiment, the terminal strip can possibly be arranged on the circumference of a body rotatable by the action of force in a bearing in the cylinder 2, the axis of rotation of which runs approximately parallel to the fold. If necessary, the terminal strip can consist of a limited elastic material with a large coefficient of friction.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
Kanalchannel
1a1a
KanalkanteChannel edge
22nd
Zylindercylinder
33rd
AufzugElevator
44th
AbkantungFolding
55
KlemmschlitzClamping slot
66
AusnehmungRecess
77
Klemmleiste (7.1 + 7.2)Terminal strip (7.1 + 7.2)
88th
Federfeather
99
Widerlager (9.1)Abutment (9.1)
1010th
Backenflächen (10.1 + 10.2)Cheek surfaces (10.1 + 10.2)
1111
Leistestrip
1212th
1313
Federfeather
1515
SpannschraubeClamping screw
1616
StellgliederActuators
1717th
Vorsprunghead Start
1818th
AusschnittNeckline
1919th
AusnehmungRecess
2020th
Exzentereccentric

Claims (11)

Klemm- und Ziehvorrichtung für Aufzüge von Zylindern in Druckmaschinen, bestehend aus in einem axial am Umfang des Zylinders verlaufenden Kanal angeordneten, durch Kraftelemente beaufschlagbaren Greifelementen, die ein um eine Kanalkante herum in den Kanal hineinreichendes Ende des Aufzuges erfassen und festhalten,
dadurch gekennzeichnet, daß die den Rand des Zylinderaufzuges (3) erfassenden Greifelemente (7) bei ihrer Beaufschlagung durch die Kraftelemente eine Bewegung in den Kanal (1) hinein ausführen und den Zylinderaufzug (3) um die Kanalkante (1a) herumziehen. Clamping and pulling device for elevators of cylinders in printing presses, consisting of gripping elements which are arranged in a channel running axially on the circumference of the cylinder and can be acted upon by force elements, which grip and hold an end of the elevator which extends into the channel around a channel edge,
characterized by that the gripping elements (7) which grip the edge of the cylinder lift (3), when acted upon by the force elements, execute a movement into the channel (1) and pull the cylinder lift (3) around the channel edge (1a). Klemm- und Ziehvorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Greifelemente aus wenigstens einer in Spannrichtung beweglichen, durch Kraftelemente beaufschlagbaren Klemmleiste (7) und einer festen Backenfläche (10) eines Widerlagers am Zylinder (2) bestehen, wobei die Klemmleiste in einer definierten Winkellage gegenüber der Normalen auf die Abkantung angeordnet ist und an dieser mit einer Gratkante anliegt. Clamping and pulling device according to claim 1,
characterized by that the gripping elements consist of at least one clamping bar (7) which can be moved in the clamping direction and acted upon by force elements and a fixed jaw surface (10) of an abutment on the cylinder (2), the clamping bar being arranged in a defined angular position with respect to the normal to the bend and on this lies with a ridge edge. Klemm- und Ziehvorrichtung nach Anspruch 2,
dadurch gekennzeichnet, daß zwei Klemmleisten (7.1, 7.2) sich der Klemmbacke (10.1, 10.2) gegenüberliegend gegen je ein Widerlager (9) am Zylinder (2) abstützen und in einer durch die Widerlager (9 ) am Zylinder (2) und die Klemmbackenanlage an der Abkantung (4) des Aufzuges (3) definierten Winkellage zueinander mit einem der Spannrichtung entgegengerichteten Winkelscheitel angeordnet sind, wobei Spannkräfte eines Kraftelements wenigstens eine Klemmleiste (7.1) in Richtung der Strecklage beider Klemmleisten (7.1, 7.2) zueinander belasten. Clamping and pulling device according to claim 2,
characterized by that two clamping strips (7.1, 7.2) support the clamping jaw (10.1, 10.2) opposite one abutment (9) on the cylinder (2) and in one through the abutment (9) on the cylinder (2) and the clamping jaw system on the fold (4) of the elevator (3) defined angular position to each other with an angular vertex opposite to the tensioning direction are arranged, whereby the tensioning forces of a force element at least one clamping bar (7.1) in the direction of Load the stretching position of both terminal strips (7.1, 7.2) to each other. Vorrichtung nach Anspruch
dadurch gekennzeichnet, daß die eine Klemmleiste (7.1) die andere Klemmleiste (7.2) untergreift und auf einer der Wirkungsrichtung des Kraftelements entgegengerichtet wirksamen Feder (8) abgestützt ist. Device according to claim
characterized by that one terminal strip (7.1) engages under the other terminal strip (7.2) and is supported on a spring (8) which acts counter to the direction of action of the force element. Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, daß die eine Klemmleiste (7.1) im Querschnitt hakenförmig ausgebildet ist und mit der die andere Klemmleiste (7.2) auf ihrer dem Widerlager (9) gegenüberliegenden Seite abstützenden Hakenspitze die Kante des Randes der zwischen den Backenflächen (10.1, 10.2) liegenden Abkantung (4) des Aufzuges (3) umgreift. Device according to claim 4,
characterized by that the one clamping strip (7.1) is hook-shaped in cross-section and with the other clamping strip (7.2) on its opposite side of the hook tip supporting the abutment (9) the edge of the edge of the fold (4) lying between the jaw surfaces (10.1, 10.2) of the elevator (3). Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet, daß die auf der Hakenspitze der einen Klemmleiste (7.1) abgestützte andere Klemmleiste (7.2) durch eine gegenüber der Feder (8) unter der einen Klemmleiste (7.1) wesentlich schwächeren Feder (13) gegen die Hakenspitze belastet ist. Device according to claim 5,
characterized by that the other terminal block (7.2) supported on the hook tip of one terminal block (7.1) is loaded against the hook tip by a spring (13) which is considerably weaker than the spring (8) under the one terminal block (7.1). Vorrichtung nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß wenigstens eines der beiden Widerlager (9) in Richtung gegen das jeweils andere Widerlager durch Stellglieder beweglich angeordnet ist. Device according to one of claims 1 to 6,
characterized by that at least one of the two abutments (9) is movably arranged in the direction against the other abutment by actuators. Vorrichtung nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß das auf die Klemmleiste (7.1) wirkende Kraftelement aus einer Spannschraube (15) besteht. Device according to one of claims 1 to 7,
characterized by that the force element acting on the terminal block (7.1) consists of a clamping screw (15). Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die mit Spannkräften beaufschlagbare Klemmleiste (7) an der Klemmbackenfläche wenigstens einen Vorsprung (17) aufweist, der bei der Klemmung der Abkantung (4 ) des Aufzuges (3) in wenigstens einen Ausschnitt (18) der Abkantung (4) eingreift bzw. einen Vorsprung der Abkantung in Spannrichtung hintergreift. Device according to one of the preceding claims,
characterized by that the clamping bar (7), which can be acted upon with clamping forces, has at least one projection (17) on the jaw surface, which engages or engages in at least one cutout (18) of the fold (4) when clamping the fold (4) of the elevator (3) The projection of the fold reaches behind in the clamping direction. Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß eine Klemmbacke am Umfang einer um die eigene Längsachse in einer Ausnehmung (6) des Zylinders drehbeweglich gelagerten Klemmleiste (7) angeordnet und diese mit einem Schraubenantrieb gekuppelt ist. Device according to one of the preceding claims,
characterized by that a clamping jaw is arranged on the circumference of a clamping bar (7) rotatably mounted about its own longitudinal axis in a recess (6) of the cylinder and this is coupled with a screw drive. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der Schraubenantrieb aus einem Schneckengetriebe besteht, dessen Schnecke mittels eines Werkzeuges drehbar im Zylinder (2) gelagert und dessen Schneckenrad mit der im Querschnitt runden Klemmleiste (7) verbunden ist. Device according to claim 1,
characterized by that the screw drive consists of a worm gear, the worm of which is rotatably mounted in the cylinder (2) by means of a tool, and the worm wheel of which is connected to the terminal block (7) which is round in cross section.
EP96120587A 1996-01-22 1996-12-20 Clamping and pulling device for sleeves for cylinders in printing machines Expired - Lifetime EP0788881B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19602104 1996-01-22
DE19602104A DE19602104C2 (en) 1996-01-22 1996-01-22 Clamping and pulling device for elevators of cylinders in printing machines

Publications (2)

Publication Number Publication Date
EP0788881A1 true EP0788881A1 (en) 1997-08-13
EP0788881B1 EP0788881B1 (en) 2001-04-04

Family

ID=7783326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96120587A Expired - Lifetime EP0788881B1 (en) 1996-01-22 1996-12-20 Clamping and pulling device for sleeves for cylinders in printing machines

Country Status (5)

Country Link
US (1) US5718174A (en)
EP (1) EP0788881B1 (en)
JP (1) JP4144914B2 (en)
KR (1) KR100230467B1 (en)
DE (1) DE19602104C2 (en)

Citations (3)

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US4836103A (en) * 1983-04-14 1989-06-06 Komori Printing Machinery Co., Ltd. Cylinder apparatus of sheet-fed rotary press
DE4227683A1 (en) * 1992-07-09 1994-01-13 Heidelberger Druckmasch Ag Sheet-fed offset printing machine equipped for automated plate change

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DE3538308C2 (en) * 1984-11-16 1994-02-24 Wifag Maschf Device for mounting a blanket on a blanket cylinder of a rotary printing machine
DE8433674U1 (en) * 1984-11-16 1985-02-14 Maschinenfabrik Wifag, Bern DEVICE FOR MOUNTING A RUBBER BLANKET ON A RUBBER BLANKET CYLINDER OF A ROTARY PRINTING MACHINE
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
JPH0811327B2 (en) * 1990-11-16 1996-02-07 三星電子株式会社 Drive safety device for tabletop cutting machine
DE4210316C2 (en) * 1992-03-30 1994-02-24 Heidelberger Druckmasch Ag Clamping and clamping device for a printing plate in a printing machine
JP3219908B2 (en) * 1992-07-09 2001-10-15 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト Sheet-fed offset printing press
DE4306139C2 (en) * 1993-02-27 1996-10-10 Heidelberger Druckmasch Ag Device for carrying out work steps in a cylinder of a printing press
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Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
GB484204A (en) * 1936-08-21 1938-05-02 Arnold August Egli Improvements in and relating to multi-colour intaglio printing machines
US4836103A (en) * 1983-04-14 1989-06-06 Komori Printing Machinery Co., Ltd. Cylinder apparatus of sheet-fed rotary press
DE4227683A1 (en) * 1992-07-09 1994-01-13 Heidelberger Druckmasch Ag Sheet-fed offset printing machine equipped for automated plate change
DE4227683C2 (en) 1992-07-09 1994-04-21 Heidelberger Druckmasch Ag Sheet-fed offset printing machine equipped for automated plate change

Also Published As

Publication number Publication date
KR100230467B1 (en) 1999-11-15
JP4144914B2 (en) 2008-09-03
EP0788881B1 (en) 2001-04-04
DE19602104C2 (en) 2000-09-14
KR970058926A (en) 1997-08-12
US5718174A (en) 1998-02-17
DE19602104A1 (en) 1997-07-24
JPH09193350A (en) 1997-07-29

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