EP0827830A1 - Cylinder - Google Patents

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Publication number
EP0827830A1
EP0827830A1 EP97114963A EP97114963A EP0827830A1 EP 0827830 A1 EP0827830 A1 EP 0827830A1 EP 97114963 A EP97114963 A EP 97114963A EP 97114963 A EP97114963 A EP 97114963A EP 0827830 A1 EP0827830 A1 EP 0827830A1
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EP
European Patent Office
Prior art keywords
cylinder
plate
channel
pressure medium
pressure
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
EP97114963A
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German (de)
French (fr)
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EP0827830B1 (en
Inventor
Helmut Puschnerat
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Koenig and Bauer AG
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Koenig and Bauer AG
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Publication of EP0827830A1 publication Critical patent/EP0827830A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/08Cylinders
    • B41F13/10Forme cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F27/00Devices for attaching printing elements or formes to supports
    • B41F27/12Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1206Feeding to or removing from the forme cylinder
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/60Devices for transferring printing plates
    • B41P2227/63Devices for removing printing plates

Definitions

  • the invention relates to a cylinder of a rotary printing press and a method of lifting a plate according to the preamble of claims 1 and 8.
  • DE 43 03 381 A1 shows a plate cylinder with a device for lifting a pressure plate by means of compressed air.
  • openings are provided in a lateral surface of the plate cylinder below the pressure plate to be lifted, which can be acted upon by compressed air.
  • a disadvantage of this plate cylinder is that irregularities in the printed image can occur due to the openings arranged in the lateral surface or the pressure-free zone is enlarged.
  • the invention has for its object a cylinder and to provide a method of lifting a panel.
  • the cylinder according to the invention is in the drawing shown 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 channel 8 which runs parallel to its axis of rotation and extends from a lateral surface 6 of the cylinder 1 into its interior 7.
  • the plate 2 with a thickness d2, z. B. d2 0.3 mm, it is preferably printing plates, for. B. for planographic printing or letterpress printing (in particular flexographic printing, ie carrier plates with a plastic layer) or to carrier plates with z. B. rubber blankets attached to it.
  • the leading end 3 and trailing end 4 each have a bent leg 9, 11.
  • the channel 8 has approximately triangular cross-section.
  • Channel 8 can too almost rectangular in cross section, in the form of a Slot 12, be formed (Fig. 4).
  • At the The end of the channel 8 or slot 12 is parallel bore 16 in the cylinder 1 extending to the channel 8 appropriate.
  • the channel 8 or slot 12 affects the Bore 16 in the form of a chord so that the bore 16 communicates with the channel 8 or slot 12.
  • This wave 17 is in axial direction with several radially outwards acting, sprung pressure pieces 18 provided.
  • the Thrust pieces 18 are fastened in the shaft 17 in such a way that whose pressure cam 19 over a lateral surface 21 of the shaft 17 can also act resiliently.
  • the pressure cams 19 are cylindrical designed so that for each pressure cam 19th results, for example, in a line-shaped contact zone. It it is also possible, for example, to apply the pressure cams 18 to be provided with a ball end at its outer end.
  • the channel 8 has a triangular design and is delimited to receive the leading end 3 of the plate 2 by a side surface 22 inclined by the opening angle alpha, while an opposite side surface 23 is directed perpendicular to the tangent 14, ie in the radial direction extends.
  • a pressure medium supply 26 is arranged in this space 24, which is triangular in cross section and delimited by the two side surfaces 22, 23 and shaft 17. This room can also be closed on its end faces.
  • This pressure medium supply 26 is designed, for example, as a tube 26 or hose with a circular cross section and is provided with a plurality of outlet openings 27 in the longitudinal direction.
  • At least one end of the pressure medium supply 26 has a connection (not shown) for supplying a pressure medium, preferably compressed air.
  • This connection can be permanently connected to a rotary transmitter, so that 1 pressure medium can be supplied to the channel 8 in any position of the cylinder.
  • This pressure medium supply 26, designed as a tube 26 can also be arranged in the shaft 17 (Fig. 2).
  • This U-shaped groove 28 is arranged so that in the unclamped position Shaft 17, the outlet openings 27 of the tube 26 Pressure medium directly into channel 8.
  • the pressure medium supply 26 can also be integrated in the shaft 17.
  • the shaft 17 is provided with an axially extending bore 29, which is connected to outlet openings 31 opening into the channel 8.
  • the pressure cams 19 can also be provided in the longitudinal direction with a bore 34 and with outlet openings 36 extending therefrom and pointing radially outwards. These holes 34 of the pressure cams 19 are connected to one another by means of a flexible tube, for example by means of a hose. It is also possible, in addition to or instead of the bores 29, 34, to arrange a pipe 38 with outlet openings 39 leading into the channel 8 in a recess 37 in a trailing side surface of the channel 8.
  • the channel 8 rectangular cross-section and is therefore as Slot 12, which must also be closed on the front can, executed.
  • the slot 8 is provided with a pressure medium supply.
  • this can consist of one or two one or both end faces of the cylinder 1 arranged bores 33 exist on which a Pressure medium source is connected.
  • the lower end 32 of the slot 8 too enlarge and use it, for example, with a tube 26 Outlet openings 27 corresponding to the first Insert embodiment.
  • Outlet openings 41 to the outer surface 6 of the Cylinder 1 subsequently, d. H. for example rounded or chamfered transition area from the Shell surface 6 to the side surface 23 of the channel 8 arranged.
  • the outlet openings 41 act on the Plate 2 in the area of the bending radius of the trailing folded end 4 of the plate 2.
  • the outlet openings 41 are axial extending pressure medium supply 42 connected.
  • a cylinder 1 in a cylinder 1 one Carries a plurality of plates 2 in the axial direction, to arrange several of these pressure medium feeds 26, each section of the channel 8 then For example, a plate 2 is assigned one own pressure medium supply 26 is assigned.
  • the channel 8 is then preferably in the axial direction in divided individual sections so that individual rooms 24, i.e. Chambers are formed.
  • the sum of the cross sections of all feed openings is to the sum of the cross sections of all openings from which False air can escape, adapted, preferably the supply openings are larger than the false air openings educated.
  • An opening can escape from the false air can be, for example, the gap that is between the two legs 9, 11 of the plate 2 as a result of slightly larger width 8 of the channel 8 can result.
  • the mode of operation of the device according to the invention is as follows:
  • the pressure medium supply is assigned to the shaft 17, the outlet openings of the shaft 17 reach the area of the channel 8.
  • the pressure medium supply 26 is now acted upon by pressure medium, as a result of which pressure medium enters channel 8 and a pressure is built up in channel 8.
  • Channel 8 thus acts as a pressure chamber.
  • the pressure medium acts on the folded end 4 of the plate and pushes the leg 11 of the trailing end 4 out of the channel 8.
  • the trailing end 4 of the plate 2 is thus detached from the lateral surface 6 of the cylinder 1.
  • Pressure medium is preferably supplied until the leg 11 is completely pushed out of the channel 8.

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

Abstract

Bei einem eine Platte (2) aufnehmenden Zylinder (1) soll die Platte von einer Mantelfäche des Zylinders angehoben werden. Erfindungsgemäß wird dies durch Zuführung von Druckmittel in einen Enden der Platte aufnehmenden Kanal (8) des Zylinders erreicht. <IMAGE>In the case of a cylinder (1) receiving a plate (2), the plate is to be lifted from a surface of the cylinder. According to the invention, this is achieved by supplying pressure medium into one end of the plate-receiving channel (8) of the cylinder. <IMAGE>

Description

Die Erfindung betrifft einen Zylinder einer Rotationsdruckmaschine und ein Verfahren zum Anheben einer Platte gemäß dem Oberbegriff der Ansprüche 1 und 8.The invention relates to a cylinder of a rotary printing press and a method of lifting a plate according to the preamble of claims 1 and 8.

Die DE 43 03 381 A1 zeigt einen Plattenzylinder mit einer Einrichtung zum Anheben einer Druckplatte mittels Druckluft. Dazu sind in einer Mantelfläche des Plattenzylinders unterhalb der anzuhebenden Druckplatte Öffnungen angebracht, die mit Druckluft beaufschlagbar sind.
Nachteilig an diesem Plattenzylinder ist, daß durch die in der Mantelfläche angeordneten Öffnungen Unregelmäßigkeiten im Druckbild auftreten können bzw. die druckfreie Zone vergrößert wird.
DE 43 03 381 A1 shows a plate cylinder with a device for lifting a pressure plate by means of compressed air. For this purpose, openings are provided in a lateral surface of the plate cylinder below the pressure plate to be lifted, which can be acted upon by compressed air.
A disadvantage of this plate cylinder is that irregularities in the printed image can occur due to the openings arranged in the lateral surface or the pressure-free zone is enlarged.

Der Erfindung liegt die Aufgabe zugrunde, einen Zylinder und ein Verfahren zum Anheben einer Platte zu schaffen.The invention has for its object a cylinder and to provide a method of lifting a panel.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teiles der Ansprüche 1 und 8 gelöst.This object is achieved by the features of the characterizing part of claims 1 and 8 solved.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß durch die Anordnung von Druckmittelzuführungen im Kanal eine druckfreie Zone nicht vergrößert wird. The advantages that can be achieved with the invention exist especially in that by the arrangement of pressure medium supply in the channel pressure-free zone is not enlarged.

Während des Abhebevorganges vergrößern sich Öffnungen aus denen beispielsweise Falschluft entweichen kann nicht wesentlich, weshalb nur eine minimale Menge von Druckmittel benötigt wird. Deshalb können die Querschnitte der Leitungen zum Zuführen von Druckmittel klein gehalten werden.
In vorteilhafter Weise kann ein Ende der Platte vollständig aus dem Schlitz entfernt werden.
Zudem ist eine Zuführung des Druckmittels äußerst einfach ausgeführt.
During the lifting process, openings from which, for example, false air can escape do not enlarge significantly, which is why only a minimal amount of pressure medium is required. Therefore, the cross sections of the lines for supplying pressure medium can be kept small.
Advantageously, one end of the plate can be completely removed from the slot.
In addition, supply of the pressure medium is extremely simple.

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

Es zeigen

Fig. 1
einen schematischen Schnitt durch einen Zylinder in einem ersten Ausführungsbeispiel;
Fig. 2
einen schematischen Schnitt durch den Zylinder in einem zweiten Ausführungsbeispiel;
Fig. 3
einen schematischen Schnitt durch den Zylinder in einem dritten Ausführungsbeispiel;
Fig. 4
einen schematischen Schnitt durch den Zylinder in einem vierten Ausführungsbeispiel;
Fig. 5
einen schematischen Schnitt durch den Zylinder in einem fünften Ausführungsbeispiel.
Show it
Fig. 1
a schematic section through a cylinder in a first embodiment;
Fig. 2
a schematic section through the cylinder in a second embodiment;
Fig. 3
a schematic section through the cylinder in a third embodiment;
Fig. 4
a schematic section through the cylinder in a fourth embodiment;
Fig. 5
a schematic section through the cylinder in a fifth embodiment.

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 7 erstreckenden, engen Kanal 8 versehen.
Bei der Platte 2 mit einer Dicke d2, z. B. d2 = 0,3 mm, handelt es sich vorzugsweise um Druckplatten, z. B. für den Flachdruck oder Hochdruck (insbesondere Flexodruck, d.h. Trägerplatten mit Kunststoffschicht) oder um Trägerplatten mit z. B. darauf befestigten Gummitüchern. Das vorlaufende Ende 3 und nachlaufende Ende 4 weisen jeweils einen abgekanteten Schenkel 9, 11 auf.
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 channel 8 which runs parallel to its axis of rotation and extends from a lateral surface 6 of the cylinder 1 into its interior 7.
In the plate 2 with a thickness d2, z. B. d2 = 0.3 mm, it is preferably printing plates, for. B. for planographic printing or letterpress printing (in particular flexographic printing, ie carrier plates with a plastic layer) or to carrier plates with z. B. rubber blankets attached to it. The leading end 3 and trailing end 4 each have a bent leg 9, 11.

Im vorliegenden Beispiel weist der Kanal 8 annähernd dreieckförmigen Querschnitt auf. Der Kanal 8 kann auch im Querschnitt annähernd rechteckig, in Form eines Schlitzes 12, ausgebildet sein (Fig. 4). Eine Breite b8 bzw. b12 des Querschnittes des Kanales 8 bzw. Schlitzes 12 weist an seinem Anfang 13 etwas mehr als die doppelte Dicke d2 der Platte 2 auf, d.h. beispielsweise b8 = 1 mm. Der Kanal 8 bzw. der Schlitz 12 ist bezüglich einer an der Mantelfläche 6 im Bereich des Kanales 8 bzw. Schlitzes 9 anliegenden Tangente 14 um einen Neigungswinkel Alpha, z. B. Alpha = 45°, geneigt. Am Ende des Kanales 8 bzw. Schlitzes 12 ist eine parallel zu dem Kanal 8 verlaufende Bohrung 16 in dem Zylinder 1 angebracht. Der Kanal 8 bzw. Schlitz 12 tangiert die Bohrung 16 in Form einer Sehne, so daß die Bohrung 16 mit dem Kanal 8 bzw. Schlitz 12 in Verbindung steht. In dieser Bohrung 16 ist ein Schwenkhebel 17, der im vorliegenden Ausführungsbeispiel als eine Welle 17 mit einem Radius r17, z. B. r17 = 15 mm, ausgeführt ist, schwenkbar zentrisch gelagert. Diese Welle 17 ist in axialer Richtung mit mehreren von radial nach außen wirkenden, gefederten Druckstücken 18 versehen. Die Druckstücke 18 sind so in der Welle 17 befestigt, daß deren Drucknocken 19 über eine Mantelfläche 21 der Welle 17 hinaus federnd wirken können. Im dargestellten Beispiel sind die Drucknocken 19 zylinderförmig ausgestaltet, so daß sich für jeden Drucknocken 19 beispielsweise eine linienförmige Berührzone ergibt. Es ist beispielsweise auch möglich, die Drucknocken 18 an ihrem äußeren Ende mit einer Kugelkuppe zu versehen.In the present example, the channel 8 has approximately triangular cross-section. Channel 8 can too almost rectangular in cross section, in the form of a Slot 12, be formed (Fig. 4). A width b8 or b12 of the cross section of the channel 8 or slot 12 has at its beginning 13 a little more than double Thickness d2 of plate 2, i.e. for example b8 = 1 mm. The channel 8 or slot 12 is related one on the lateral surface 6 in the region of the channel 8 or slot 9 adjacent tangent 14 around a Tilt angle alpha, e.g. B. Alpha = 45 °. At the The end of the channel 8 or slot 12 is parallel bore 16 in the cylinder 1 extending to the channel 8 appropriate. The channel 8 or slot 12 affects the Bore 16 in the form of a chord so that the bore 16 communicates with the channel 8 or slot 12. In this bore 16 is a pivot lever 17 which in present embodiment as a shaft 17 with a radius r17, e.g. B. r17 = 15 mm. pivoted centrally. This wave 17 is in axial direction with several radially outwards acting, sprung pressure pieces 18 provided. The Thrust pieces 18 are fastened in the shaft 17 in such a way that whose pressure cam 19 over a lateral surface 21 of the shaft 17 can also act resiliently. In the illustrated For example, the pressure cams 19 are cylindrical designed so that for each pressure cam 19th results, for example, in a line-shaped contact zone. It it is also possible, for example, to apply the pressure cams 18 to be provided with a ball end at its outer end.

In einem ersten Ausführungsbeispiel ist der Kanal 8 dreieckförmig ausgeführt und wird zur Aufnahme des vorlaufenden Endes 3 der Platte 2 von einer um den Öffnungswinkel Alpha geneigten Seitenfläche 22 begrenzt, während eine gegenüberliegende Seitenfläche 23 senkrecht auf die Tangente 14 gerichtet ist, d.h. sich in radialer Richtung erstreckt. In diesem von den beiden Seitenflächen 22, 23 und Welle 17 begrenzten, im Querschnitt dreieckförmigen Raum 24 ist eine Druckmittelzuführung 26 angeordnet. Dieser Raum kann auch noch zusätzlich an seinen Stirnseiten geschlossen sein.
Diese Druckmittelzuführung 26 ist beispielsweise als Rohr 26 oder Schlauch mit kreisförmigem Querschnitt ausgeführt und ist in Längsrichtung mit einer Vielzahl von Austrittsöffnungen 27 versehen. An mindestens einem Ende der Druckmittelzuführung 26 ist ein nichtdargestellter Anschluß zur Zufuhr eines Druckmittels, vorzugsweise Druckluft, vorgesehen. Dieser Anschluß kann permanent mit einem Drehübertrager verbunden sein, so daß in jeder Stellung des Zylinders 1 Druckmittel dem Kanal 8 zugeführt werden kann. Es ist aber auch möglich, die Druckmittelzuführung nur zeitweise mit einer ortsfesten Druckmittelquelle zu verbinden.
In a first exemplary embodiment, the channel 8 has a triangular design and is delimited to receive the leading end 3 of the plate 2 by a side surface 22 inclined by the opening angle alpha, while an opposite side surface 23 is directed perpendicular to the tangent 14, ie in the radial direction extends. A pressure medium supply 26 is arranged in this space 24, which is triangular in cross section and delimited by the two side surfaces 22, 23 and shaft 17. This room can also be closed on its end faces.
This pressure medium supply 26 is designed, for example, as a tube 26 or hose with a circular cross section and is provided with a plurality of outlet openings 27 in the longitudinal direction. At least one end of the pressure medium supply 26 has a connection (not shown) for supplying a pressure medium, preferably compressed air. This connection can be permanently connected to a rotary transmitter, so that 1 pressure medium can be supplied to the channel 8 in any position of the cylinder. However, it is also possible to connect the pressure medium supply only temporarily to a stationary pressure medium source.

Diese als Rohr 26 ausgebildete Druckmittelzuführung 26 kann auch in der Welle 17 angeordnet sein (Fig. 2). Dazu weist die Welle 17 beispielsweise im Bereich ihrer Mantelfläche 21 eine sich axial erstreckende, U-förmige Nut 28 auf, die in radialer Richtung der Welle 17 weist und nach außen offen ist. Diese U-förmige Nut 28 ist derart angeordnet, daß in ungeklemmter Stellung der Welle 17 die Austrittsöffnungen 27 des Rohres 26 das Druckmittel direkt in den Kanal 8 münden. Die Druckstücke 18 und die U-förmige Nut schließen deshalb beispielsweise einen Öffnungswinkel Beta, z. B. Beta = 35° ein.This pressure medium supply 26, designed as a tube 26 can also be arranged in the shaft 17 (Fig. 2). To shows the shaft 17, for example in the area of their Shell surface 21 is an axially extending, U-shaped Groove 28, which points in the radial direction of the shaft 17 and is open to the outside. This U-shaped groove 28 is arranged so that in the unclamped position Shaft 17, the outlet openings 27 of the tube 26 Pressure medium directly into channel 8. The Pressure pieces 18 and the U-shaped groove therefore close for example an opening angle beta, e.g. B. Beta = 35 ° on.

Die Druckmittelzuführung 26 kann - wie in einem dritten Ausführungsbeispiel (Fig. 3) angedeutet - auch in der Welle 17 integriert sein. Dazu ist beispielsweise die Welle 17 mit einer sich axial erstreckenden Bohrung 29 versehen, die mit in den Kanal 8 mündenden Austrittsöffnungen 31 verbunden ist.
Zusätzlich oder anstelle der in der Welle 17 integrierten Bohrung 29 können auch die Drucknocken 19 in Längsrichtung mit einer Bohrung 34 und mit von dieser ausgehenden, radial nach außen weisenden Austrittsöffnungen 36 versehen sein. Diese Bohrungen 34 der Drucknocken 19 sind untereinander mittels eines flexiblen Rohres beispielsweise mittels eines Schlauches verbunden.
Auch ist es möglich, zusätzlich oder anstelle der Bohrungen 29, 34 in einer Aussparung 37 einer nachlaufenden Seitenfläche des Kanals 8 ein Rohr 38 mit in den Kanal 8 führenden Austrittsöffnungen 39 anzuordnen.
As indicated in a third exemplary embodiment (FIG. 3), the pressure medium supply 26 can also be integrated in the shaft 17. For this purpose, for example, the shaft 17 is provided with an axially extending bore 29, which is connected to outlet openings 31 opening into the channel 8.
In addition to or instead of the bore 29 integrated in the shaft 17, the pressure cams 19 can also be provided in the longitudinal direction with a bore 34 and with outlet openings 36 extending therefrom and pointing radially outwards. These holes 34 of the pressure cams 19 are connected to one another by means of a flexible tube, for example by means of a hose.
It is also possible, in addition to or instead of the bores 29, 34, to arrange a pipe 38 with outlet openings 39 leading into the channel 8 in a recess 37 in a trailing side surface of the channel 8.

In einem vierten Ausführungsbeispiel weist der Kanal 8 rechteckförmigen Querschnitt auf und ist somit als Schlitz 12, der zusätzlich stirnseitig geschlossen sein kann, ausgeführt. An seinem innen liegenden Ende 32 ist der Schlitz 8 mit einer Druckmittelzuführung versehen. Diese kann im einfachsten Fall aus einer oder zwei an einer oder beiden Stirnflächen des Zylinders 1 angeordneten Bohrungen 33 bestehen, an denen eine Druckmittelquelle angeschlossen wird. Es ist aber auch möglich, das untere Ende 32 des Schlitzes 8 zu vergrößern und daran beispielsweise ein Rohr 26 mit Austrittsöffnungen 27 entsprechend dem ersten Ausführungsbeispiel einzulegen. In a fourth exemplary embodiment, the channel 8 rectangular cross-section and is therefore as Slot 12, which must also be closed on the front can, executed. At its inner end is 32 the slot 8 is provided with a pressure medium supply. In the simplest case, this can consist of one or two one or both end faces of the cylinder 1 arranged bores 33 exist on which a Pressure medium source is connected. It is also possible, the lower end 32 of the slot 8 too enlarge and use it, for example, with a tube 26 Outlet openings 27 corresponding to the first Insert embodiment.

In einem fünften Ausführungsbeispiel sind Austrittsöffnungen 41 an die Mantelfläche 6 des Zylinders 1 anschließend, d. h. im beispielsweise abgerundeten oder angefasten Übergangsbereich von der Mantelfläche 6 zu der Seitenfläche 23 des Kanals 8 angeordnet. Die Austrittsöffnungen 41 wirken auf die Platte 2 im Bereich des Biegeradius des nachlaufenden, abgekanteten Endes 4 der Platte 2.In a fifth embodiment Outlet openings 41 to the outer surface 6 of the Cylinder 1 subsequently, d. H. for example rounded or chamfered transition area from the Shell surface 6 to the side surface 23 of the channel 8 arranged. The outlet openings 41 act on the Plate 2 in the area of the bending radius of the trailing folded end 4 of the plate 2.

Die Austrittsöffnungen 41 sind mit einer axial verlaufenden Druckmittelzuführung 42 verbunden. The outlet openings 41 are axial extending pressure medium supply 42 connected.

Es ist auch möglich, z. B. bei einem Zylinder 1 der eine Mehrzahl von Platten 2 in axialer Richtung trägt, mehrere dieser Druckmittelzuführungen 26 anzuordnet, wobei dann jedem Abschnitt des Kanals 8 der beispielsweise einer Platte 2 zugeordnet ist, eine eigene Druckmittelzuführung 26 zugeordnet ist. Vorzugsweise ist der Kanal 8 dann in axialer Richtung in einzelne Abschnitte unterteilt, so daß einzelne Räume 24, d.h. Kammern gebildet werden.It is also possible e.g. B. in a cylinder 1 one Carries a plurality of plates 2 in the axial direction, to arrange several of these pressure medium feeds 26, each section of the channel 8 then For example, a plate 2 is assigned one own pressure medium supply 26 is assigned. The channel 8 is then preferably in the axial direction in divided individual sections so that individual rooms 24, i.e. Chambers are formed.

Eine Summe der Querschnitte aller Zuführöffnungen ist auf die Summe der Querschnitte aller Öffnungen aus denen Falschluft entweichen kann, angepaßt, vorzugsweise sind die Zuführöffnungen größer als die Falschluftöffnungen ausgebildet. Eine Öffnung aus der Falschluft entweichen kann, ist beispielsweise der Spalt, der sich zwischen den beiden Schenkeln 9, 11 der Platte 2 infolge der etwas größeren Breite 8 des Kanales 8 ergeben kann.The sum of the cross sections of all feed openings is to the sum of the cross sections of all openings from which False air can escape, adapted, preferably the supply openings are larger than the false air openings educated. An opening can escape from the false air can be, for example, the gap that is between the two legs 9, 11 of the plate 2 as a result of slightly larger width 8 of the channel 8 can result.

Die Funktionsweise der erfindungsgemäßen Vorrichtung ist folgendermaßen:The mode of operation of the device according to the invention is as follows:

Zum Entfernen der Platte 2 wird die Welle 17 von ihrer Klemmstellung in ihre Lösestellung im Uhrzeigersinn geschwenkt , worauf die Drucknocken 19 die Schenkel 9, 11 der Enden 3, 4 freigeben. Die Drucknocken 19 werden in die Bohrung 16 geführt, in der sich die Drucknocken 17 an der Mantelfläche der Bohrung 16 abstützen. To remove the plate 2, the shaft 17 of its Clamp position in its release position clockwise pivoted, whereupon the pressure cams 19, the legs 9, Release 11 of ends 3, 4. The pressure cams 19 are led into the bore 16 in which the pressure cam Support 17 on the lateral surface of the bore 16.

Ist die Druckmittelzuführung der Welle 17 zugeordnet, gelangen die Austrittsöffnungen der Welle 17 in den Bereich des Kanales 8.
Die Druckmittelzuführung 26 wird nun mit Druckmittel beaufschlagt, wodurch in den Kanal 8 Druckmittel gelangt und in dem Kanal 8 ein Druck aufgebaut wird. Somit wirkt der Kanal 8 als Druckkammer. Das Druckmittel wirkt auf das abgekantete Ende 4 der Platte und schiebt den Schenkel 11 des nachlaufenden Endes 4 aus dem Kanal 8. Das nachlaufende Ende 4 der Platte 2 wird somit von der Mantelfläche 6 des Zylinders 1 gelöst. Vorzugsweise wird solange Druckmittel zugeführt bis der Schenkel 11 vollständig aus dem Kanal 8 herausgeschoben ist.
If the pressure medium supply is assigned to the shaft 17, the outlet openings of the shaft 17 reach the area of the channel 8.
The pressure medium supply 26 is now acted upon by pressure medium, as a result of which pressure medium enters channel 8 and a pressure is built up in channel 8. Channel 8 thus acts as a pressure chamber. The pressure medium acts on the folded end 4 of the plate and pushes the leg 11 of the trailing end 4 out of the channel 8. The trailing end 4 of the plate 2 is thus detached from the lateral surface 6 of the cylinder 1. Pressure medium is preferably supplied until the leg 11 is completely pushed out of the channel 8.

BezugszeichenlisteReference list

11
Zylindercylinder
22nd
Platteplate
33rd
Ende, vorlaufendEnd, leading
44th
Ende, nachlaufendEnd, trailing
55
--
66
Mantelfläche (1)Lateral surface (1)
77
Inneres (1)Interior (1)
88th
Kanalchannel
99
Schenkel (3)Thigh (3)
1010th
--
1111
Schenkel (4)leg (4)
1212th
Schlitzslot
1313
Anfang (8; 12)Beginning (8; 12)
1414
Tangentetangent
1515
--
1616
Bohrungdrilling
1717th
Wellewave
1818th
DruckstückPressure piece
1919th
DrucknockenPressure cams
2020th
--
2121
MantelflächeLateral surface
2222
Seitenfläche (8)Side (8)
2323
Seitenfläche (8)Side (8)
2424th
Raumroom
2525th
--
2626
Druckmittelzuführung, RohrPressure medium supply, pipe
2727
Austrittsöffnung (26) Outlet (26)
2828
Nut (17)Groove (17)
2929
Bohrungdrilling
3030th
--
3131
AustrittsöffnungOutlet opening
3232
Ende (12)End (12)
3333
Bohrungdrilling
3434
Bohrung (19)Bore (19)
3535
--
3636
Austrittsöffnung (34)Outlet opening (34)
3737
AussparungRecess
3838
Rohrpipe
3939
Austrittsöffnung (38)Outlet (38)
4040
--
4141
Austrittsöffnung (38)Outlet opening (38)
4242
DruckmittelzuführungPressure medium supply
b8b8
Breite des Kanals (8)Channel Width (8)
d2d2
Dicke der Platte (2)Plate thickness (2)
Alphaalpha
NeigungswinkelAngle of inclination
Betabeta
ÖffnungswinkelOpening angle

Claims (8)

Zylinder (1) einer Rotationsdruckmaschine mit Austrittsöffnungen (27; 31) zur Zufuhr eines Druckmittels um eine biegsame Platte (2) von einer Mantelfläche (6) des Zylinders (1) abzuheben, wobei Enden (3; 4) der Platte (2) in einem Kanal (8; 12) angeordnet sind, dadurch gekennzeichnet, daß mindestens eine in den Kanal (8; 12) mündende Austrittsöffnung (27; 31) angeordnet ist.Cylinder (1) with a rotary printing press Outlet openings (27; 31) for feeding a Pressure medium around a flexible plate (2) from one Lift off the lateral surface (6) of the cylinder (1), whereby Ends (3; 4) of the plate (2) in a channel (8; 12) are arranged, characterized in that at least an outlet opening (27; 31) is arranged. Zylinder (1) nach Anspruch 1, dadurch gekennzeichnet, daß mindestens eine mit dem Kanal (8; 12) verbundene Zuführung für Druckmittel an mindestens einer Stirnfläche des Zylinders (1) vorgesehen ist.Cylinder (1) according to claim 1, characterized characterized in that at least one with the channel (8; 12) connected supply for pressure medium at least an end face of the cylinder (1) is provided. Zylinder (1) nach Anspruch 1, dadurch gekennzeichnet, daß in dem Kanal (8; 12) eine sich axial erstreckende Druckmittelzuführung (26; 33) mit einer Vielzahl von Austrittsöffnungen (27; 31) angeordnet ist.Cylinder (1) according to claim 1, characterized characterized in that in the channel (8; 12) an axially extending pressure medium supply (26; 33) with a A large number of outlet openings (27; 31) is arranged. Zylinder (1) nach Anspruch 1, dadurch gekennzeichnet, daß der Kanal (8) als Schlitz (12) ausgebildet ist und daß mindestens eine Austrittsöffnung zum Zuführen von Druckmittel im Bereich eines innen liegenden Endes (32) des Schlitzes (12) angeordnet ist.Cylinder (1) according to claim 1, characterized characterized in that the channel (8) as a slot (12) is formed and that at least one outlet opening for supplying pressure medium in the area of an inside lying end (32) of the slot (12) is arranged. Zylinder (1) nach Anspruch 1, dadurch gekennzeichnet, daß eine Welle (17) zum Klemmen der Enden (3; 4) vorgesehen ist und daß in der Welle (17) Austrittsöffnungen (31) zum Zuführen von Druckmittel vorgesehen sind.Cylinder (1) according to claim 1, characterized characterized in that a shaft (17) for clamping the Ends (3; 4) is provided and that in the shaft (17) Outlet openings (31) for supplying pressure medium are provided. Zylinder (1) nach Anspruch 1, dadurch gekennzeichnet, daß als Platte (2) eine Druckplatte vorgesehen ist.Cylinder (1) according to claim 1, characterized characterized in that a plate as a plate (2) is provided. Zylinder (1) nach Anspruch 1, dadurch gekennzeichnet, daß als Platte (2) eine mit einem Gummituch beschichtete Trägerplatte vorgesehen ist.Cylinder (1) according to claim 1, characterized characterized in that as a plate (2) with a Blanket-coated carrier plate is provided. Verfahren zum Anheben einer Platte (2) von einer Mantelfläche (6) eines Zylinders (1) mittels eines direkt auf die Platte wirkenden Druckmittels, wobei Enden (3; 4) der Platte (2) von einem Kanal (8; 12) aufgenommen werden, dadurch gekennzeichnet, daß das Druckmittel in den Kanal (8; 12) eingeleitet wird.Method for lifting a plate (2) from a Shell surface (6) of a cylinder (1) by means of a pressure medium acting directly on the plate, whereby Ends (3; 4) of the plate (2) from a channel (8; 12) are included, characterized in that the Pressure medium is introduced into the channel (8; 12).
EP97114963A 1996-09-07 1997-08-29 Cylinder Expired - Lifetime EP0827830B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19636412A DE19636412C1 (en) 1996-09-07 1996-09-07 Cylinder of rotary printer with outlets
DE19636412 1996-09-07

Publications (2)

Publication Number Publication Date
EP0827830A1 true EP0827830A1 (en) 1998-03-11
EP0827830B1 EP0827830B1 (en) 2000-07-12

Family

ID=7804944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97114963A Expired - Lifetime EP0827830B1 (en) 1996-09-07 1997-08-29 Cylinder

Country Status (4)

Country Link
US (1) US5842419A (en)
EP (1) EP0827830B1 (en)
JP (1) JP2996936B2 (en)
DE (2) DE19636412C1 (en)

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EP0949072A1 (en) * 1998-04-09 1999-10-13 MAN Roland Druckmaschinen AG Printing cylinder

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DE19729375A1 (en) * 1997-07-09 1999-01-14 Ltg Lufttechnische Gmbh Device for fastening a flexible plate on the circumference of the cylinder of a painting machine
DE19924784C2 (en) 1999-05-29 2001-05-31 Koenig & Bauer Ag Device for fastening flexible plates on a cylinder of a rotary printing machine with reversal of the direction of rotation
DE10108745C1 (en) * 2001-02-23 2002-05-23 Koenig & Bauer Ag Drive, for shaft to clamp or tension hoists on cylinder, has boring in cylinder for third shaft
DE102004059338B3 (en) * 2004-08-16 2005-12-22 Koenig & Bauer Ag Releasing process for tympan on printing press cylinder involves blowing compressed air at one end of tympan onto both its endfaces
US7618222B2 (en) * 2006-03-01 2009-11-17 Chi Hyun Kim Collated fastener strips with opposing wire connectors
DE102006048093A1 (en) * 2006-10-11 2008-04-17 Koenig & Bauer Aktiengesellschaft Rotary printing press i.e. sheet feed-offset rotary printing press, has generating unit to generate air stream that acts on moisture applying roller, where unit is attached to plate cylinder, such that stream is generated in channel
DE102008002048B4 (en) * 2008-05-28 2011-03-10 Koenig & Bauer Aktiengesellschaft Use of a cleaning system for cleaning one or more printing cylinder of a printing unit of a printing press
US8578853B2 (en) * 2008-12-24 2013-11-12 Printing Research, Inc. Anti-marking jackets comprised of attachment structure and methods of using in offset printing
US8220388B2 (en) * 2008-12-24 2012-07-17 Printing Research, Inc. Multiple layer anti-marking jackets and methods of using in offset printing
US8281716B2 (en) * 2008-12-24 2012-10-09 Printing Research, Inc. Anti-marking jackets comprised of fluoropolymer and methods of using in offset printing
DE102009000511B4 (en) 2009-01-30 2011-02-24 Koenig & Bauer Aktiengesellschaft purifier
US8424453B2 (en) 2010-09-01 2013-04-23 Printing Research, Inc. Apparatus and method for adjusting anti-marking jackets
US8677899B2 (en) 2011-01-31 2014-03-25 Printing Research, Inc. Reversible anti-marking jackets and methods of using
KR20120130517A (en) * 2011-05-23 2012-12-03 삼성디스플레이 주식회사 Rubbing apparatus
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US6129018A (en) * 1998-04-09 2000-10-10 Man Roland Druckmaschinen Ag Impression cylinder with a slot for receiving elastic molded ends of flexible plate

Also Published As

Publication number Publication date
JP2996936B2 (en) 2000-01-11
DE59701999D1 (en) 2000-08-17
JPH1086335A (en) 1998-04-07
US5842419A (en) 1998-12-01
EP0827830B1 (en) 2000-07-12
DE19636412C1 (en) 1998-01-08

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