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EP0594986A2 - Rubber tubular printing blanket - Google Patents

Rubber tubular printing blanket Download PDF

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Publication number
EP0594986A2
EP0594986A2 EP93114232A EP93114232A EP0594986A2 EP 0594986 A2 EP0594986 A2 EP 0594986A2 EP 93114232 A EP93114232 A EP 93114232A EP 93114232 A EP93114232 A EP 93114232A EP 0594986 A2 EP0594986 A2 EP 0594986A2
Authority
EP
European Patent Office
Prior art keywords
sleeve
blanket
rubber
offset
laminated body
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
EP93114232A
Other languages
German (de)
French (fr)
Other versions
EP0594986A3 (en
EP0594986B1 (en
Inventor
Ingo Köbler
Eduard Dr. Hoffmann
Wolfgang Prem
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Filing date
Publication date
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Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0594986A2 publication Critical patent/EP0594986A2/en
Publication of EP0594986A3 publication Critical patent/EP0594986A3/en
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
    • B41N10/02—Blanket structure
    • B41N10/04—Blanket structure multi-layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/06—Backcoats; Back layers; Bottom layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
    • B41N2210/14—Location or type of the layers in multi-layer blankets or like coverings characterised by macromolecular organic compounds
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/902—High modulus filament or fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2915—Rod, strand, filament or fiber including textile, cloth or fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2942—Plural coatings
    • Y10T428/2945—Natural rubber in coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/2942—Plural coatings
    • Y10T428/2947—Synthetic resin or polymer in plural coatings, each of different type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
    • Y10T428/296—Rubber, cellulosic or silicic material in coating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2933—Coated or with bond, impregnation or core
    • Y10T428/2964—Artificial fiber or filament

Definitions

  • the invention relates to an offset blanket sleeve for a channelless blanket cylinder for applying a printed image to a sheet or web material.
  • blankets are usually held on the blanket cylinder by means of mechanical fixings.
  • a blanket cylinder has an axially extending channel with tensioning segments, in which the opposite ends of the blanket are fastened.
  • This tensioning mechanism results in a tensioning channel embedded in the body of the blanket cylinder, which extends in segments, axially over the width of the cylinder.
  • This tensioning channel interrupts the surface of the blanket cylinder so that a pressure-free zone is created during the rolling movements of the blanket cylinder. Due to the channel, the cylinders rolling on each other are excited to flexural vibrations during the printing process. This affects the print quality negatively.
  • blanket sleeves for a blanket cylinder without a cylinder channel have already been developed.
  • a rubber blanket sleeve is known from patent specification DE 27 00 118 C2, in which an endless coating made of an elastic material, preferably rubber, was made on an exchangeable carrier sleeve made of plastic or a metallic material. The rubber covering is applied to the carrier sleeve without any gaps or seams. The blanket sleeve produced in this way is then pushed over the blanket cylinder by means of compressed air and fixed thereon by switching off the air supply.
  • the blanket sleeve remains fixed on the blanket cylinder during the printing process, it is designed with an undersize and placed on the blanket cylinder with expansion, so that the blanket sleeve is held by the joint pressure between the blanket cylinder jacket and the inside of the sleeve.
  • the blanket sleeve must therefore be able to absorb considerable circumferential forces. That is why the well-known rubber blanket sleeve is made up of a carrier sleeve with a high modulus of elasticity and a compressible rubber coating, which alone could not absorb the high peripheral forces.
  • Such a carrier sleeve is comparatively very expensive, since materials such as nickel, steel or glass fiber reinforced plastic are preferably used to achieve the required properties.
  • the object of the present invention is therefore to provide an inexpensive blanket sleeve which can absorb high peripheral forces and which, when pushed onto the blanket cylinder, fulfills all the necessary conditions of the known blanket sleeve.
  • the carrier sleeve is constructed in the form of a laminated body, which consists of plastic, preferably rubber as the base material and is reinforced by layered inserts embedded therein. A rubber layer is vulcanized onto the carrier sleeve.
  • These layer inserts can be made of steel, textile fibers or plastic fibers and form a braid embedded in the base material, preferably rubber, of the carrier sleeve for reinforcement thereof.
  • the sleeve itself can be made in rotation, that is to say endlessly, but can also be produced in the flat state and then welded to the sleeve.
  • Such a reinforcement that is to say by embedding a braid in the base material of the carrier sleeve, enables the elasticity-weak plastic, preferably rubber, to be significantly higher Absorb circumferential forces and thus an expensive carrier sleeve made of glass fiber reinforced plastic or a metallic material can be dispensed with.
  • such a blanket sleeve has an undersize compared to the blanket cylinder carrying it, and can be pushed onto the blanket cylinder with expansion by means of compressed air and fixed on the circumference of the blanket cylinder by pressing forces when the compressed air is switched off.
  • Fig. 1 shows again a known blanket sleeve 1, which has a carrier sleeve 2 made of nickel, steel or glass fiber reinforced plastic.
  • a rubber blanket 3 in the form of a rubber covering is vulcanized onto this carrier sleeve 2.
  • This blanket sleeve 1 has a coherent gap-free outer and inner surface.
  • the sleeve 1 is removably mountable on the outer peripheral surface of a blanket cylinder. Since the outer peripheral surface of the sleeve 1 is coherent and gap-free, a bumpless and vibration-free rolling contact is achieved between the rubber blanket 3 and the ink-transferring surfaces of a plate cylinder, not shown.
  • FIG. 2 shows a carrier sleeve 4 in the form of a laminated body 5 with layer inserts 13 in the form of a spiral winding, which is embedded as reinforcement in the base material, preferably rubber, of the carrier sleeve 4.
  • the reinforcement 10 or 11 of the base material of the support sleeve 6 or 8 according to the invention can also be designed in the form of a net-shaped braid 7 or in the form of a cross winding 9.

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  • Printing Plates And Materials Therefor (AREA)

Abstract

Um eine kostengünstige Gummituchhülse zu schaffen, die hohe Umfangskräfte aufnehmen kann und auf einen Gummituchzylinder aufgeschoben alle erforderlichen Bedingungen einer herkömmlichen Gummituchhülse erfüllt, ist für eine Offset-Gummituchhülse eine Trägerhülse in Form eines Schichtkörpers vorgesehen, wobei der Schichtkörper aus Kunststoff als Grundmaterial, vorzugsweise Gummi, besteht und das Grundmaterial durch darin eingebettete Schichteinlagen bewehrt ist. Eine Gummischicht ist auf die Trägerhülse aufvulkanisiert.

Figure imgaf001
In order to create an inexpensive blanket sleeve that can absorb high circumferential forces and is pushed onto a blanket cylinder and meets all the necessary conditions of a conventional blanket sleeve, a carrier sleeve in the form of a laminated body is provided for an offset blanket sleeve, the laminated body made of plastic as the base material, preferably rubber, exists and the base material is reinforced by layered layers embedded in it. A rubber layer is vulcanized onto the carrier sleeve.
Figure imgaf001

Description

Die Erfindung betrifft eine Offset-Gummituchhülse für einen kanallosen Gummituchzylinder zum Aufbringen eines Druckbildes auf ein Bogen- oder Bahnmaterial.The invention relates to an offset blanket sleeve for a channelless blanket cylinder for applying a printed image to a sheet or web material.

Bei Offset-Rotationsdruckmaschinen werden üblicherweise Gummitücher mittels mechanischer Fixierungen auf dem Gummituchzylinder gehalten. Solch ein Gummituchzylinder weist einen sich axial erstreckenden Kanal mit Spannsegmenten auf, in dem die sich gegenüberliegenden Enden des Gummituchs befestigt sind. Bedingt durch diesen Spannmechanismus ergibt sich ein in den Körper des Gummituchzylinders eingelassener Spannkanal, der sich segmentweise, axial über die Zylinderbreite erstreckt. Dieser Spannkanal unterbricht die Zylindermantelfläche des Gummituchzylinders, so daß während der Abrollbewegungen des Gummituchzylinders eine druckfreie Zone entsteht. Bedingt durch den Kanal werden während dem Druckprozeß die aufeinander abrollenden Zylinder zu Biegeschwingungen angeregt. Die Druckqualität wird dadurch negativ beeinflußt.In offset rotary printing presses, blankets are usually held on the blanket cylinder by means of mechanical fixings. Such a blanket cylinder has an axially extending channel with tensioning segments, in which the opposite ends of the blanket are fastened. This tensioning mechanism results in a tensioning channel embedded in the body of the blanket cylinder, which extends in segments, axially over the width of the cylinder. This tensioning channel interrupts the surface of the blanket cylinder so that a pressure-free zone is created during the rolling movements of the blanket cylinder. Due to the channel, the cylinders rolling on each other are excited to flexural vibrations during the printing process. This affects the print quality negatively.

Zur Überwindung dieser Schwierigkeiten sind bereits Gummituchhülsen für einen Gummituchzylinder ohne Zylinderkannal entwickelt worden. Es ist zum Beispiel aus der Patentschrift DE 27 00 118 C2 eine Gummituchhülse bekannt, bei der auf einer auswechselbaren Trägerhülse aus Kunststoff oder einem metallischen Material eine endlose Beschichtung aus einem elastischen Material, vorzugsweise Gummi vorgenommen wurde. Der Gummibelag ist vollständig spalt- und nahtfrei auf die Trägerhülse aufgebracht. Die auf diese Weise hergestellte Gummituchhülse wird dann mittels Preßluft über den Gummituchzylinder geschoben und darauf durch Abstellen der Luftversorgung fixiert.In order to overcome these difficulties, blanket sleeves for a blanket cylinder without a cylinder channel have already been developed. For example, a rubber blanket sleeve is known from patent specification DE 27 00 118 C2, in which an endless coating made of an elastic material, preferably rubber, was made on an exchangeable carrier sleeve made of plastic or a metallic material. The rubber covering is applied to the carrier sleeve without any gaps or seams. The blanket sleeve produced in this way is then pushed over the blanket cylinder by means of compressed air and fixed thereon by switching off the air supply.

Damit die Gummituchhülse während des Druckprozeßes ortsfest auf dem Gummituchzylinder fixiert bleibt, ist diese mit einem Untermaß ausgeführt und unter Aufweitung auf dem Gummituchzylinder plaziert worden, so daß die Gummituchhülse durch die Fugenpreßung zwischen dem Gummituchzylindermantel und der Hülseninnenseite gehalten wird. Die Gummituchhülse muß daher beachtliche Umfangskräfte aufnehmen können. Deshalb ist die bekannte Gummituchhülse aus einer Trägerhülse mit hohem E-Modul und einer kompressiblen Gummibeschichtung, die allein die hohen Umfangskräfte nicht aufnehmen könnte, aufgebaut.So that the blanket sleeve remains fixed on the blanket cylinder during the printing process, it is designed with an undersize and placed on the blanket cylinder with expansion, so that the blanket sleeve is held by the joint pressure between the blanket cylinder jacket and the inside of the sleeve. The blanket sleeve must therefore be able to absorb considerable circumferential forces. That is why the well-known rubber blanket sleeve is made up of a carrier sleeve with a high modulus of elasticity and a compressible rubber coating, which alone could not absorb the high peripheral forces.

Jedoch ist eine solche Trägerhülse vergleichsweise sehr teuer, da zur Erreichung der erforderlichen Eigenschaften vorzugsweise Werkstoffe wie Nickel, Stahl oder glasfaserverstärkter Kunststoff verwendet werden.However, such a carrier sleeve is comparatively very expensive, since materials such as nickel, steel or glass fiber reinforced plastic are preferably used to achieve the required properties.

Aufgabe der vorliegenden Erfindung ist es daher eine kostengünstige Gummituchhülse zu schaffen, die hohe Umfangskräfte aufnehmen kann und auf den Gummituchzylinder aufgeschoben alle erforderlichen Bedingungen der bekannten Gummituchhülse erfüllt.The object of the present invention is therefore to provide an inexpensive blanket sleeve which can absorb high peripheral forces and which, when pushed onto the blanket cylinder, fulfills all the necessary conditions of the known blanket sleeve.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Trägerhülse in Form eines Schichtkörpers aufgebaut ist, der aus Kunststoff, vorzugsweise Gummi als Grundmaterial besteht und durch darin eingebetteten Schichteinlagen bewehrt ist. Auf die Trägerhülse ist eine Gummischicht aufvulkanisiert.This object is achieved in that the carrier sleeve is constructed in the form of a laminated body, which consists of plastic, preferably rubber as the base material and is reinforced by layered inserts embedded therein. A rubber layer is vulcanized onto the carrier sleeve.

Diese Schichteinlagen können aus Stahl, aus Textilfasern oder aus Kunststoff-Fasern sein und bilden ein in das Grundmaterial, vorzugsweise Gummi, der Trägerhülse eingebettetes Geflecht zur Bewehrung derselben. Die Hülse selbst kann rotativ, also endlos gefertigt, aber auch im planen Zustand hergestellt und danach zur Hülse verschweißt sein.These layer inserts can be made of steel, textile fibers or plastic fibers and form a braid embedded in the base material, preferably rubber, of the carrier sleeve for reinforcement thereof. The sleeve itself can be made in rotation, that is to say endlessly, but can also be produced in the flat state and then welded to the sleeve.

Durch eine solche Bewehrung, also durch das Einbetten eines Geflechts in das Grundmaterial der Trägerhülse, kann der E-Modul-schwache Kunststoff, vorzugsweise Gummi, wesentlich höhere Umfangskräfte aufnehmen und somit kann auf eine teure Trägerhülse aus glasfaserverstärktem Kunststoff oder einem metallischen Werkstoff verzichtet werden.Such a reinforcement, that is to say by embedding a braid in the base material of the carrier sleeve, enables the elasticity-weak plastic, preferably rubber, to be significantly higher Absorb circumferential forces and thus an expensive carrier sleeve made of glass fiber reinforced plastic or a metallic material can be dispensed with.

Wie üblich weist eine solche Gummituchülse gegenüber dem sie tragenden Gummituchzylinder im entspannten Zustand ein Untermaß auf und kann unter Aufweitung mittels Preßluft auf den Gummituchzylinder aufgeschoben und bei Abstellung der Preßluft durch Preßkräfte auf dem Umfang des Gummituchzylinders fixiert werden.As usual, such a blanket sleeve has an undersize compared to the blanket cylinder carrying it, and can be pushed onto the blanket cylinder with expansion by means of compressed air and fixed on the circumference of the blanket cylinder by pressing forces when the compressed air is switched off.

Im folgenden sind Ausführungsbeispiele anhand der Zeichnung beschrieben. Es zeigt stark schematisiert:

Fig. 1
eine herkömmliche Gummituchhülse mit Trägerhülse und aufvulkanisierten Gummibelag,
Fig. 2 bis 4
jeweils eine Bewehrung der Trägerhülse einer erfindungsgemäßen Gummituchhülse,
Fig. 5
den Schichtaufbau einer erfindungsgemäßen Gummituchhülse.
Exemplary embodiments are described below with reference to the drawing. It shows a highly schematic:
Fig. 1
a conventional blanket sleeve with carrier sleeve and vulcanized rubber covering,
2 to 4
reinforcement of the carrier sleeve of a rubber blanket sleeve according to the invention,
Fig. 5
the layer structure of a blanket sleeve according to the invention.

Fig. 1 zeigt nochmals eine bekannte Gummituchhülse 1, die eine Trägerhülse 2 aus Nickel, Stahl oder glasfaserverstärktem Kunststoff aufweist. Ein Gummituch 3 in Form eines Gummibelags ist auf diese Trägerhülse 2 aufvulkanisiert. Diese Gummituchhülse 1 verfügt über eine zusammenhängende spaltfreie Außen- und Innenfläche. Die Hülse 1 ist abbnehmbar auf der Außenumfangsfläche eines Gummituchzylinders lagerbar. Da die Außenumfangsfläche der Hülse 1 zusammenhängend und spaltfrei ist, wird zwischen Gummituch 3 und farbübertragenden Oberflächen eines nicht dargestellten Plattenzylinders ein stoßfreier und vibrationloser Abrollkontakt erreicht.Fig. 1 shows again a known blanket sleeve 1, which has a carrier sleeve 2 made of nickel, steel or glass fiber reinforced plastic. A rubber blanket 3 in the form of a rubber covering is vulcanized onto this carrier sleeve 2. This blanket sleeve 1 has a coherent gap-free outer and inner surface. The sleeve 1 is removably mountable on the outer peripheral surface of a blanket cylinder. Since the outer peripheral surface of the sleeve 1 is coherent and gap-free, a bumpless and vibration-free rolling contact is achieved between the rubber blanket 3 and the ink-transferring surfaces of a plate cylinder, not shown.

Demgegenüber zeigt Fig. 2 eine Trägerhülse 4 in Form eines Schichtkörpers 5 mit Schichteinlagen 13 in Form einer spiralförmigen Wicklung, die als Bewehrung in das Grundmaterial, vorzugsweise Gummi, der Trägerhülse 4 eingebettet ist.In contrast, FIG. 2 shows a carrier sleeve 4 in the form of a laminated body 5 with layer inserts 13 in the form of a spiral winding, which is embedded as reinforcement in the base material, preferably rubber, of the carrier sleeve 4.

Jeweils eine weitere Variante ist in Fig. 3 und Fig. 4 gezeigt. Die Bewehrung 10 bzw. 11 des Grundmaterials der erfindugsgemäßen Trägerhülse 6 bzw. 8 kann auch in Form eines netzförmigen Geflechts 7 oder in Form einer Kreuzwicklung 9 ausgeführt sein.A further variant is shown in FIGS. 3 and 4. The reinforcement 10 or 11 of the base material of the support sleeve 6 or 8 according to the invention can also be designed in the form of a net-shaped braid 7 or in the form of a cross winding 9.

Allen erfindungsgemäßen Gummituchhülsen mit den Trägerhülsen 4, 6, 8 ist gemeinsam, daß sie alle geschilderten Funktionsweisen der bekannten Gummituchhülse 1 aufzeigen.All of the blanket sleeves according to the invention with the carrier sleeves 4, 6, 8 have in common that they show all the described modes of operation of the known blanket sleeve 1.

Fig. 5 zeigt nochmals den gesamten Schichtaufbau der Gummituchhülse mit der Trägerhülse 4, 6 bzw. 8 mit Bewehrung 10, 11, 13 und eine auf die Trägerhülse aufvulkanisierte Gummibeschichtung 12.5 again shows the entire layer structure of the rubber blanket sleeve with the carrier sleeve 4, 6 or 8 with reinforcement 10, 11, 13 and a rubber coating 12 vulcanized onto the carrier sleeve.

Claims (7)

Offset-Gummituchhülse für einen kanallosen Gummituchzylinder mit einer Trägerhülse und auf die Trägerhülse aufvulkanisierten Gummischicht zum Aufbringen eines Druckbildes auf ein Bogen- oder Bahnmaterial , gekennzeichnet durch eine Trägerhülse (4, 6, 8) in Form eines Schichtkörpers (5, 7, 9), wobei der Schichtkörper (5, 7, 9) aus Kunststoff, vorzugsweise Gummi, als Grundmaterial besteht und durch darin eingebettete Schichteinlagen (10, 11, 13) bewehrt ist.Offset rubber blanket sleeve for a channelless blanket cylinder with a carrier sleeve and rubber layer vulcanized onto the carrier sleeve for applying a printed image to a sheet or web material, characterized by a carrier sleeve (4, 6, 8) in the form of a laminated body (5, 7, 9), the layered body (5, 7, 9) made of plastic, preferably rubber, as the base material and reinforced by layer inserts (10, 11, 13) embedded therein. Offset-Gummituchülse nach Anspruch 1, gekennzeichnet durch Schichteinlagen (10, 11, 13) aus Stahl.Offset rubber blanket sleeve according to claim 1, characterized by layer inserts (10, 11, 13) made of steel. Offset-Gummituchhülse nach Anspruch 1, gekennzeichnet durch Schichteinlagen (10, 11, 13) aus Textil-Fasern.Offset blanket sleeve according to claim 1, characterized by layer inserts (10, 11, 13) made of textile fibers. Offset-Gummituchhülse nach Anspruch 1, gekennzeichnet durch Schichteinlagen (10, 11, 13) aus Kunststoff-Fasern.Offset rubber blanket sleeve according to claim 1, characterized by layer inserts (10, 11, 13) made of plastic fibers. Offset-Gummituchhülse nach einem der vorangehenden Ansprüche, gekennzeichnet durch die Ausführung des Schichtkörpers (5) als spiralförmige Wicklung.Offset blanket sleeve according to one of the preceding claims, characterized by the design of the laminated body (5) as a spiral winding. Offset-Gummituchhülse nach den Ansprüchen 1 bis 4, gekennzeichnet durch die Ausführung des Schichtkörpers (7) als netzförmiges Geflecht.Offset rubber blanket sleeve according to Claims 1 to 4, characterized by the design of the laminated body (7) as a mesh-like braid. Offset-Gummituchhülse nach den Ansprüchen 1 bis 4, gekennzeichnet durch die Ausführung des Schichtkörpers (9) als Kreuzwicklung und Einbettung derselben in Kunststoff, vorzugsweise Gummi.Offset rubber blanket sleeve according to claims 1 to 4, characterized by the design of the laminated body (9) as a cross winding and embedding the same in plastic, preferably rubber.
EP93114232A 1992-09-11 1993-09-06 Rubber blanket sleeve for offset printing Expired - Lifetime EP0594986B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4230431A DE4230431C2 (en) 1992-09-11 1992-09-11 Offset blanket sleeve
DE4230431 1992-09-11

Publications (3)

Publication Number Publication Date
EP0594986A2 true EP0594986A2 (en) 1994-05-04
EP0594986A3 EP0594986A3 (en) 1994-11-09
EP0594986B1 EP0594986B1 (en) 1998-10-21

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ID=6467743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93114232A Expired - Lifetime EP0594986B1 (en) 1992-09-11 1993-09-06 Rubber blanket sleeve for offset printing

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Country Link
US (1) US5654100A (en)
EP (1) EP0594986B1 (en)
JP (1) JP3497534B2 (en)
DE (2) DE4230431C2 (en)

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Also Published As

Publication number Publication date
JP3497534B2 (en) 2004-02-16
DE4230431C2 (en) 1996-09-26
US5654100A (en) 1997-08-05
EP0594986A3 (en) 1994-11-09
JPH06183172A (en) 1994-07-05
DE59309080D1 (en) 1998-11-26
EP0594986B1 (en) 1998-10-21
DE4230431A1 (en) 1994-03-17

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