EP0732204A1 - Device for disengaging a printing plate from a cylinder - Google Patents

Device for disengaging a printing plate from a cylinder Download PDF

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Publication number
EP0732204A1
EP0732204A1 EP96103838A EP96103838A EP0732204A1 EP 0732204 A1 EP0732204 A1 EP 0732204A1 EP 96103838 A EP96103838 A EP 96103838A EP 96103838 A EP96103838 A EP 96103838A EP 0732204 A1 EP0732204 A1 EP 0732204A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
plate
lifter
slot
spindle
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
EP96103838A
Other languages
German (de)
French (fr)
Other versions
EP0732204B1 (en
Inventor
Wolfgang Günter Ruckmann
Jürgen Alfred Stiel
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.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0732204A1 publication Critical patent/EP0732204A1/en
Application granted granted Critical
Publication of EP0732204B1 publication Critical patent/EP0732204B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/125—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 on a curvilinear path, e.g. by winding on a roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/60—Devices for transferring printing plates
    • B41P2227/63—Devices for removing printing plates

Definitions

  • the invention relates to a device for releasing plates with bent ends from a cylinder of a rotary printing press according to the preamble of claim 1.
  • DE 43 03 381 A1 shows a plate cylinder with a device for lifting a printing plate.
  • the plate cylinder below the pressure plate has pressurized air bores for lifting the pressure plate.
  • a disadvantage of this plate cylinder is that complex compressed air supplies are necessary.
  • the invention has for its object to provide a device for releasing plates with bent ends from a cylinder of a rotary printing press, with which at least one bent end of the plate can be detached from the cylinder.
  • the device according to the invention is shown in the drawing and is described in more detail below.
  • a cylinder 1 of a rotary printing machine for receiving flexible plates 2 with bent ends 3, 4 with at least one narrow slot 7 extending parallel to its axis of rotation and extending from a lateral surface 6 of the cylinder 1 into its interior 5.
  • One leg 8 of the leading end 3 is longer in the present example than a corresponding leg 9 of the trailing end 4 of the plate 2.
  • the slot 7 is preferably rectangular in cross section.
  • a bore 12 running parallel to the slot 7 is made in the cylinder 1.
  • the slot 7 tangent to the bore 12 in the form of a chord, so that the bore 12 is connected to the slot 7.
  • This spindle 16 is provided in the axial direction with a number of pressure pieces 17 pointing radially outwards.
  • the pressure pieces 17 are fastened in the spindle 16 in such a way that their pressure cams 18 can act resiliently beyond a lateral surface 19 of the spindle 16.
  • the operation of the device according to the invention is as follows: In an insertion position (FIG. 1) of the spindle 16, the reduced lateral surface 22 of the spindle 16 is located in the area of the slot 7. In this position, the two bent ends 3, 4 of the plate 2 are guided into the slot 7, the reduced lateral surface 22 serves as a guide. To clamp the ends 3, 4 of the plate 2, the spindle 16 is rotated counterclockwise until the pressure pieces 17 are approximately perpendicular with respect to the legs 8, 9 of the ends 3, 4 of the plate 2. The pressure cams 18 of the pressure pieces 17 are pressed by means of spring force supported on the spindle 16 against the legs 8, 9 of the ends 3, 4 of the plate 2.
  • the ends 3, 4 of the plate 2 are fixed in the slot 7 of the cylinder 1 (Fig. 2).
  • the spindle 16 By turning the spindle 16 counterclockwise, ie with the pressure cams 18 acting in the direction of the inside of the cylinder, the ends 3, 4 are tensioned by means of an inward tensile force.
  • the spindle 16 is locked in this clamping position.
  • the spindle 16 is rotated clockwise, whereupon the pressure pieces 17 release the ends 3, 4.
  • the pressure pieces 17 are guided into the bore 12, in which the pressure pieces 17 are supported on the lateral surface 13 of the bore 12. Due to the rotational movement of the spindle 16, free ends 28 of the lifters 27 now reach the region of the trailing end 4 of the plate 2 and their end faces 31 abut against an end face 29 of the leg 9 of the trailing end 4.
  • the lifters 27 spring outwards into their extended position so that the lifters 27 are tangential to the spindle 16 and are guided into the slot 7 in the direction of the beginning (10) of the slot 7.
  • the spindle 16 is rotated until the ends 28 of the lifters 27 are just below the outer surface 6 of the cylinder 1.
  • the trailing end 4 of the plate 2 is completely removed from the slot 7 by means of the lifter 27 and can spring away from the lateral surface 6 of the cylinder 1 due to the inherent tension of the plate 2.
  • lifters 27 acting on the trailing end 4 of the plate 2
  • the device according to the invention can also act simultaneously on both ends 3, 4 of the plate 2 or a separate device can be provided for each end 3, 4.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

The plate removal device removes plates from the angled flat ends (3,4) of the cylinder (1) of a rotary press. The cylinder has a narrow axial slit (7) to receive the plate ends. The device has at least one movable sheet-form lifter (27) which can be guided out from the interior (5) of the cylinder into the slit. One endface (31) of a free end (28) of the lifter is arranged to act on the endface (29) of one part (9) of the angled end (4) of the plate. The free end (28), together with the same part (9), can be moved in the direction of the trap (10) in the slit.

Description

Die Erfindung betrifft eine Vorrichtung zum Lösen von Platten mit abgekanteten Enden von einem Zylinder einer Rotationsdruckmaschine gemäß dem Oberbegriff des Anspruches 1.The invention relates to a device for releasing plates with bent ends from a cylinder of a rotary printing press according to the preamble of claim 1.

Die DE 43 03 381 A1 zeigt einen Plattenzylinder mit einer Einrichtung zum Anheben einer Druckplatte. Hierbei weist der Plattenzylinder unterhalb der Druckplatte mit Druckluft beaufschlagbare Bohrungen zum Anheben der Druckplatte auf.DE 43 03 381 A1 shows a plate cylinder with a device for lifting a printing plate. Here, the plate cylinder below the pressure plate has pressurized air bores for lifting the pressure plate.

Nachteilig an diesem Plattenzylinder ist, daß aufwendige Druckluftzuführungen notwendig sind.A disadvantage of this plate cylinder is that complex compressed air supplies are necessary.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Lösen von Platten mit abgekanteten Enden von einem Zylinder einer Rotationsdruckmaschine zu schaffen, mit der zumindest ein abgekantetes Ende der Platte von dem Zylinder gelöst werden kann.The invention has for its object to provide a device for releasing plates with bent ends from a cylinder of a rotary printing press, with which at least one bent end of the plate can be detached from the cylinder.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teiles des Anspruches 1 gelöst.This object is achieved by the features of the characterizing part of claim 1.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß ein abgekantetes Ende einer Platte vollständig aus seiner Befestigungseinrichtung, z. B. einem Schlitz in einer Mantelfläche eines Zylinders, entfernt wird. Das so frei gewordene Ende federt durch seine Eigenspannung vom Zylinder weg und kann somit ohne weitere Hilfsmittel beispielsweise einer automatischen Plattenwechselvorrichtung zugeführt werden. Vorteilhafterweise sind keine Teile außerhalb der Mantelfläche angeordnet oder treten über die Mantelfläche hinaus. Ausheber der erfindungsgemäßen Vorrichtung bewegen sich in dem schmalen, die Enden der Platte aufnehmenden Schlitz. Somit wird kein zusätzlicher Raum für die erfindungsgemäße Vorrichtung im Bereich der Mantelfläche des Zylinders benötigt. Die maximal bedruckbare Fläche des Zylinders bleibt erhalten und wird nicht durch beispielsweise Bohrungen oder bewegliche Leisten in der Mantelfläche des Zylinders unterhalb der Platte eingeschränkt.The advantages that can be achieved with the invention consist in particular in that an angled end of a Plate completely out of its fastener, e.g. B. a slot in a lateral surface of a cylinder is removed. The end thus released springs away from the cylinder due to its inherent tension and can thus be fed to an automatic plate changing device, for example, without further aids. Advantageously, no parts are arranged outside the outer surface or extend beyond the outer surface. Lifters of the device according to the invention move in the narrow slot receiving the ends of the plate. Thus, no additional space is required for the device according to the invention in the area of the outer surface of the cylinder. The maximum printable area of the cylinder is retained and is not restricted, for example, by bores or movable strips in the lateral surface of the cylinder below the plate.

Die erfindungsgemäße Vorrichtung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben.The device according to the invention is shown in the drawing and is described in more detail below.

Es zeigen

Fig. 1
einen schematischen Schnitt durch eine erfindungsgemäße Vorrichtung in Einführstellung;
Fig. 2
einen schematischen Schnitt durch eine erfindungsgemäße Vorrichtung in Klemmstellung;
Fig. 3
einen schematischen Schnitt durch eine erfindungsgemäße Vorrichtung während des Aushebevorganges.
Show it
Fig. 1
a schematic section through an inventive device in the insertion position;
Fig. 2
a schematic section through a device according to the invention in the clamping position;
Fig. 3
a schematic section through a device according to the invention during the lifting process.

Ein Zylinder 1 einer Rotationsdruckmaschine ist zur Aufnahme von biegsamen Platten 2 mit abgekanteten Enden 3, 4 mit mindestens einem parallel zu seiner Drehachse verlaufenden, sich von einer Mantelfläche 6 des Zylinders 1 in sein Inneres 5 erstreckenden, engen Schlitz 7 versehen.
Bei der Platte 2 mit einer Dicke d2, z. B. d2 = 0,3 mm, handelt es sich vorzugsweise um Druckplatten oder um Trägerplatten mit z. B. darauf befestigten Gummitüchern. Ein Schenkel 8 des vorlaufenden Endes 3 ist im vorliegenden Beispiel länger als ein entsprechender Schenkel 9 des nachlaufenden Endes 4 der Platte 2.A cylinder 1 of a rotary printing machine is provided for receiving flexible plates 2 with bent ends 3, 4 with at least one narrow slot 7 extending parallel to its axis of rotation and extending from a lateral surface 6 of the cylinder 1 into its interior 5.
In the plate 2 with a thickness d2, z. B. d2 = 0.3 mm, it is preferably printing plates or carrier plates with z. B. rubber blankets attached to it. One leg 8 of the leading end 3 is longer in the present example than a corresponding leg 9 of the trailing end 4 of the plate 2.

Der Schlitz 7 ist im Querschnitt vorzugsweise rechteckig ausgebildet. Eine Breite b7 des Querschnittes des Schlitzes 7 weist an seinem Anfang 10 etwas mehr als die doppelte Dicke d2 der Platte 2 auf, d.h. beispielsweise b7 = 1 mm. Der Schlitz 7 ist bezüglich einer an der Mantelfläche 6 im Bereich des Schlitzes 7 anliegenden Tangente 11 um einen Neigungswinkel Alpha, z. B. Alpha = 45°, geneigt. Am Ende des Schlitzes 7 ist eine parallel zu dem Schlitz 7 verlaufende Bohrung 12 in dem Zylinder 1 angebracht. Der Schlitz 7 tangiert die Bohrung 12 in Form einer Sehne, so daß die Bohrung 12 mit dem Schlitz 7 in Verbindung steht. Im vorliegenden Beispiel befindet sich eine virtuelle Fortsetzung einer Mantelfläche 13 der Bohrung 12 in einem Abstand a zu einer der Bohrung 12 abgewandten Seitenfläche 14 des Schlitzes 7, wobei der Abstand a geringfügig größer ist als die Dicke d2 der Platte 2, z. B. a = 0,4 mm. In dieser Bohrung 12 ist ein Schwenkhebel 16, der im vorliegenden Ausführungsbeispiel als eine Spindel 16 mit einem Radius r16, z. B. r16 = 15 mm, ausgeführt ist, schwenkbar zentrisch gelagert. Diese Spindel 16 ist in axialer Richtung mit einer Anzahl von radial nach außen weisenden Druckstücken 17 versehen. Die Druckstücke 17 sind so in der Spindel 16 befestigt, daß deren Drucknocken 18 über eine Mantelfläche 19 der Spindel 16 hinaus federnd wirken können. Von dem Bereich der Spindel 16 ausgehend, in dem die Druckstücke 17 angeordnet sind, weist die Mantelfläche 19 der Spindel 16 über einen Winkel Beta, z.B. Beta = 80°, bezogen auf eine Drehachse 21 der Spindel 16 eine Mantelfläche 22 mit reduziertem Radius r22, z. B. r22 = 14,5 mm, auf. Daran schließt sich im vorliegenden Beispiel ein Bereich an, der sich über einen Winkel Gamma, z. B. Gamma = 90°, erstreckt, in dem diese reduzierte Mantelfläche 22 in axialer Richtung gesehen nur partiell als in Umfangsrichtung verlaufende U-förmige Nuten 23 ausgeführt ist. Am Ende dieser U-förmigen Nuten 23 ist ein axial verlaufender, sich radial von der Mantelfläche 19 in ein Inneres der Spindel 16 erstreckender Schlitz 24 eingebracht. In diesem Schlitz 24 sind Enden 26 von biegeelastischen, aber drucksteifen Aushebern 27 eingehängt, die im vorliegenden Beispiel als Blattfedern, z. B. aus Federstahl, ausgeführt sind. Diese Ausheber 27 passen sich im eingebauten Zustand der Form der Spindel 16 an. Die Ausheber 27 erstrecken sich über eine Länge l27, z. B. l27 = 25 mm, bis an den Bereich der reduzierten Mantelfläche 22 der Spindel 16 und weisen eine Dicke d27, z. B. d27 = 0,5 mm, auf.The slot 7 is preferably rectangular in cross section. A width b7 of the cross section of the slot 7 has at its beginning 10 slightly more than twice the thickness d2 of the plate 2, ie for example b7 = 1 mm. The slot 7 is with respect to a tangent 11 on the lateral surface 6 in the area of the slot 7 by an angle of inclination alpha, z. B. Alpha = 45 °. At the end of the slot 7, a bore 12 running parallel to the slot 7 is made in the cylinder 1. The slot 7 tangent to the bore 12 in the form of a chord, so that the bore 12 is connected to the slot 7. In the present For example, there is a virtual continuation of a circumferential surface 13 of the bore 12 at a distance a from a side surface 14 of the slot 7 facing away from the bore 12, the distance a being slightly greater than the thickness d2 of the plate 2, e.g. B. a = 0.4 mm. In this bore 12 is a pivot lever 16, which in the present embodiment as a spindle 16 with a radius r16, z. B. r16 = 15 mm, is pivotally mounted centrally. This spindle 16 is provided in the axial direction with a number of pressure pieces 17 pointing radially outwards. The pressure pieces 17 are fastened in the spindle 16 in such a way that their pressure cams 18 can act resiliently beyond a lateral surface 19 of the spindle 16. Starting from the area of the spindle 16 in which the pressure pieces 17 are arranged, the outer surface 19 of the spindle 16 has an outer surface 22 with a reduced radius r22 over an angle Beta, for example Beta = 80 °, relative to an axis of rotation 21 of the spindle 16, e.g. B. r22 = 14.5 mm. This is followed by a range in the present example, which is an angle gamma, z. B. Gamma = 90 °, extends in which this reduced lateral surface 22 is only partially seen in the axial direction as a circumferential U-shaped grooves 23. At the end of these U-shaped grooves 23, an axially extending slot 24, which extends radially from the lateral surface 19 into an interior of the spindle 16, is introduced. In this slot 24 there are ends 26 of flexurally elastic but pressure-resistant lifters 27 hung, which in the present example as leaf springs, for. B. made of spring steel. In the installed state, these lifters 27 adapt to the shape of the spindle 16. The lifters 27 extend over a length l27, z. B. l27 = 25 mm, up to the area of the reduced lateral surface 22 of the spindle 16 and have a thickness d27, z. B. d27 = 0.5 mm.

Die Funktionsweise der erfindungsgemäßen Vorrichtung ist folgendermaßen:
In einer Einführstellung (Fig. 1) der Spindel 16 befindet sich die reduzierte Mantelfläche 22 der Spindel 16 im Bereich des Schlitzes 7. In dieser Stellung werden die beiden abgekanteten Enden 3, 4 der Platte 2 in den Schlitz 7 geführt, wobei die reduzierte Mantelfläche 22 als Führung dient. Zum Klemmen der Enden 3, 4 der Platte 2 wird die Spindel 16 entgegen dem Uhrzeigersinn soweit gedreht, bis die Druckstücke 17 annähernd lotrecht gerichtet bezüglich der Schenkel 8, 9 der Enden 3, 4 der Platte 2 stehen. Die Drucknocken 18 der Druckstücke 17 werden mittels sich an der Spindel 16 abstützende Federkraft gegen die Schenkel 8, 9 der Enden 3, 4 der Platte 2 gepreßt. Somit sind die Enden 3, 4 der Platte 2 im Schlitz 7 des Zylinders 1 fixiert (Fig. 2). Durch das Drehen der Spindel 16 entgegen dem Uhrzeigersinn, d.h. mit den wirkenden Drucknocken 18 in Richtung Inneres des Zylinders, erfolgt mittels einer nach innen wirkenden Zugkraft ein Spannen der Enden 3, 4. In dieser Klemmstellung wird die Spindel 16 arretiert.The operation of the device according to the invention is as follows:
In an insertion position (FIG. 1) of the spindle 16, the reduced lateral surface 22 of the spindle 16 is located in the area of the slot 7. In this position, the two bent ends 3, 4 of the plate 2 are guided into the slot 7, the reduced lateral surface 22 serves as a guide. To clamp the ends 3, 4 of the plate 2, the spindle 16 is rotated counterclockwise until the pressure pieces 17 are approximately perpendicular with respect to the legs 8, 9 of the ends 3, 4 of the plate 2. The pressure cams 18 of the pressure pieces 17 are pressed by means of spring force supported on the spindle 16 against the legs 8, 9 of the ends 3, 4 of the plate 2. Thus, the ends 3, 4 of the plate 2 are fixed in the slot 7 of the cylinder 1 (Fig. 2). By turning the spindle 16 counterclockwise, ie with the pressure cams 18 acting in the direction of the inside of the cylinder, the ends 3, 4 are tensioned by means of an inward tensile force. The spindle 16 is locked in this clamping position.

Zum Entfernen der Platte 2 wird die Spindel 16 im Uhrzeigersinn gedreht, worauf die Druckstücke 17 die Enden 3, 4 freigeben. Die Druckstücke 17 werden in die Bohrung 12 geführt, in der sich die Druckstücke 17 an der Mantelfläche 13 der Bohrung 12 abstützen. Durch die Drehbewegung der Spindel 16 gelangen nun freie Enden 28 der Ausheber 27 in den Bereich des nachlaufenden Endes 4 der Platte 2 und deren Stirnseiten 31 stoßen gegen eine Stirnseite 29 des Schenkels 9 des nachlaufenden Endes 4. Im Verlauf der weiteren Drehbewegung federn die Ausheber 27 nach außen in ihre Strecklage, so daß die Ausheber 27 tangential bezüglich der Spindel 16 stehen und in den Schlitz 7 in Richtung Anfang (10) des Schlitzes 7 geführt werden. Die Spindel 16 wird soweit verdreht bis die Enden 28 der Ausheber 27 kurz unter der Mantelfläche 6 des Zylinders 1 stehen. Das nachlaufende Ende 4 der Platte 2 ist mittels der Ausheber 27 vollständig aus dem Schlitz 7 entfernt und kann durch die Eigenspannung der Platte 2 von der Mantelfläche 6 des Zylinders 1 wegfedern.To remove the plate 2, the spindle 16 is rotated clockwise, whereupon the pressure pieces 17 release the ends 3, 4. The pressure pieces 17 are guided into the bore 12, in which the pressure pieces 17 are supported on the lateral surface 13 of the bore 12. Due to the rotational movement of the spindle 16, free ends 28 of the lifters 27 now reach the region of the trailing end 4 of the plate 2 and their end faces 31 abut against an end face 29 of the leg 9 of the trailing end 4. During the further rotational movement, the lifters 27 spring outwards into their extended position so that the lifters 27 are tangential to the spindle 16 and are guided into the slot 7 in the direction of the beginning (10) of the slot 7. The spindle 16 is rotated until the ends 28 of the lifters 27 are just below the outer surface 6 of the cylinder 1. The trailing end 4 of the plate 2 is completely removed from the slot 7 by means of the lifter 27 and can spring away from the lateral surface 6 of the cylinder 1 due to the inherent tension of the plate 2.

Anstelle mehrerer auf das nachlaufende Ende 4 der Platte 2 wirkender Ausheber 27, kann auch nur ein einziger, beispielsweise plattenlanger Ausheber 27 verwendet werden.
Auch kann die erfindungsgemäße Vorrichtung auf beide Enden 3, 4 der Platte 2 gleichzeitig wirken oder für jedes Ende 3, 4 eine eigene Vorrichtung vorgesehen sein.Instead of several lifters 27 acting on the trailing end 4 of the plate 2, it is also possible to use only a single lifter 27, for example plate-length.
The device according to the invention can also act simultaneously on both ends 3, 4 of the plate 2 or a separate device can be provided for each end 3, 4.

TeilelisteParts list

11
Zylindercylinder
22nd
Platteplate
33rd
Ende, vorlaufendes (2)End, leading (2)
44th
Ende, nachlaufendes (2)End, trailing (2)
55
Inneres (1)Interior (1)
66
Mantelfläche (1)Lateral surface (1)
77
Schlitz (1)Slot (1)
88th
Schenkel (3)Thigh (3)
99
Schenkel (4)Thigh (4)
1010th
Anfang (7)Beginning (7)
1111
Tangentetangent
1212th
Bohrung (1)Bore (1)
1313
Mantelfläche (12)Lateral surface (12)
1414
Seitenfläche (7)Side (7)
1515
--
1616
Spindelspindle
1717th
DruckstückPressure piece
1818th
DrucknockenPressure cams
1919th
Mantelfläche (16)Lateral surface (16)
2020th
--
2121
Drehachse (16)Axis of rotation (16)
2222
Mantelfläche (16), reduziertLateral surface (16), reduced
2323
Nut (16), U-förmigGroove (16), U-shaped
2424th
Schlitz (16)Slot (16)
2525th
--
2626
Ende (27)End (27)
2727
AusheberLifter
2828
Ende (28)End (28)
2929
Stirnseite (4)End face (4)
3030th
--
3131
Stirnseite (28)End face (28)
aa
Abstand zwischen Mantelfläche (19) und Seitenfläche (14)Distance between lateral surface (19) and side surface (14)
b7b7
Breite des Schlitzes (7)Width of the slot (7)
d2d2
Dicke der Platte (2)Plate thickness (2)
d27d27
Dicke des Aushebers (27)Excavator Thickness (27)
l27l27
Längelength
r16r16
Radiusradius
r22r22
Radiusradius
Alphaalpha
NeigungswinkelAngle of inclination
Betabeta
Winkelangle
Gammagamma
Winkelangle

Claims (6)

Vorrichtung zum Lösen von Platten (2) mit abgekanteten, glatten Enden (3, 4) von einem Zylinder (1) einer Rotationsdruckmaschine, wobei der Zylinder (1) zur Aufnahme der abgekanteten Enden (3; 4) der Platte (2) mit einem engen, axial verlaufenden Schlitz (7) versehen ist, dadurch gekennzeichnet, daß mindestens ein bewegbarer, blattförmiger Ausheber (27) von einem Inneren (5) des Zylinders (1) heraus in den Schlitz (7) einführbar angeordnet ist, daß eine Stirnseite (31) eines freien Endes (28) dieses Aushebers (27) auf eine Stirnseite (29) eines Schenkels (9) eines abgekanteten Endes (4) der Platte (2) wirkend angeordnet ist und daß das freie Ende (28) zusammen mit dem Schenkel (9) in Richtung Anfang (10) des Schlitzes (7) bewegbar angeordnet ist.Device for releasing plates (2) with folded, smooth ends (3, 4) from a cylinder (1) of a rotary printing press, the cylinder (1) for receiving the bent ends (3; 4) of the plate (2) with a is provided with a narrow, axially extending slot (7), characterized in that at least one movable, sheet-shaped lifter (27) can be inserted into the slot (7) from an interior (5) of the cylinder (1) such that an end face ( 31) of a free end (28) of this lifter (27) acting on an end face (29) of a leg (9) of a bent end (4) of the plate (2) and that the free end (28) together with the leg (9) in the direction of the beginning (10) of the slot (7) is arranged to be movable. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß ein den Ausheber (27) bewegender Schwenkhebel (16) angeordnet ist.Apparatus according to claim 1, characterized in that a pivot lever (16) which moves the lifter (27) is arranged. Vorrichtung nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Ausheber (27) mit einem Ende (26) an dem Schwenkhebel (16) befestigt ist, daß das zweite Ende (28) des Aushebers (27) annähernd tangential bezüglich des Schwenkhebels (16) beweglich ist.Device according to claims 1 and 2, characterized in that the lifter (27) is attached at one end (26) to the pivot lever (16), that the second end (28) of the lifter (27) is approximately tangential with respect to the pivot lever ( 16) is movable. Vorrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß der Ausheber (27) aus einem biegeelastischen, druckfesten Material besteht.Device according to claims 1 to 3, characterized characterized in that the lifter (27) consists of a flexible, pressure-resistant material. Vorrichtung nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß der Ausheber (27) aus Federstahl besteht.Device according to claims 1 to 4, characterized in that the lifter (27) consists of spring steel. Vorrichtung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß der Schwenkhebel (16) als Spindel (16) ausgebildet ist.Device according to claims 1 to 3, characterized in that the pivot lever (16) is designed as a spindle (16).
EP96103838A 1995-03-16 1996-03-12 Device for disengaging a printing plate from a cylinder Expired - Lifetime EP0732204B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19509562A DE19509562C1 (en) 1995-03-16 1995-03-16 Device for releasing plates from a cylinder
DE19509562 1995-03-16

Publications (2)

Publication Number Publication Date
EP0732204A1 true EP0732204A1 (en) 1996-09-18
EP0732204B1 EP0732204B1 (en) 1998-06-03

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ID=7756855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103838A Expired - Lifetime EP0732204B1 (en) 1995-03-16 1996-03-12 Device for disengaging a printing plate from a cylinder

Country Status (4)

Country Link
US (1) US5651315A (en)
EP (1) EP0732204B1 (en)
JP (1) JP3092695B2 (en)
DE (2) DE19509562C1 (en)

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Publication number Priority date Publication date Assignee Title
DE19533178C2 (en) * 1995-09-08 1997-06-26 Koenig & Bauer Albert Ag cylinder
DE19642141C1 (en) * 1996-10-12 1998-06-18 Koenig & Bauer Albert Ag Device for releasing plates
DE19719559A1 (en) * 1997-05-09 1998-11-12 Koenig & Bauer Albert Ag Method and device for assembling flexible pressure plates

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US3016010A (en) * 1959-08-20 1962-01-09 Cottrell Company Printing press plate clamping means for prebent wrap around printing plates of soft material
DE4303381A1 (en) * 1993-02-05 1994-12-01 Roland Man Druckmasch Plate cylinder with a device for lifting a printing plate

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE290623C (en) *
DD290623B3 (en) * 1989-12-22 1992-09-03 Erwin Dimmel DEVICE FOR FIXING A BENDING PRESSURE PLATE
DE4238343C2 (en) * 1992-11-13 2003-03-27 Kocher & Beck Gmbh & Co Rotati Cliché fixture
DE4335140C1 (en) * 1993-10-15 1995-02-02 Roland Man Druckmasch Device for attaching a flexible printing plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3016010A (en) * 1959-08-20 1962-01-09 Cottrell Company Printing press plate clamping means for prebent wrap around printing plates of soft material
DE4303381A1 (en) * 1993-02-05 1994-12-01 Roland Man Druckmasch Plate cylinder with a device for lifting a printing plate

Also Published As

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US5651315A (en) 1997-07-29
JPH08267717A (en) 1996-10-15
EP0732204B1 (en) 1998-06-03
DE19509562C1 (en) 1996-08-14
DE59600235D1 (en) 1998-07-09
JP3092695B2 (en) 2000-09-25

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