EP1138483B1 - Sleeve for impression rollers - Google Patents

Sleeve for impression rollers Download PDF

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Publication number
EP1138483B1
EP1138483B1 EP01102540A EP01102540A EP1138483B1 EP 1138483 B1 EP1138483 B1 EP 1138483B1 EP 01102540 A EP01102540 A EP 01102540A EP 01102540 A EP01102540 A EP 01102540A EP 1138483 B1 EP1138483 B1 EP 1138483B1
Authority
EP
European Patent Office
Prior art keywords
bushings
tube
sleeve according
roller
sleeve
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.)
Expired - Lifetime
Application number
EP01102540A
Other languages
German (de)
French (fr)
Other versions
EP1138483A2 (en
EP1138483A3 (en
Inventor
Fritz Achelpohl
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP1138483A2 publication Critical patent/EP1138483A2/en
Publication of EP1138483A3 publication Critical patent/EP1138483A3/en
Application granted granted Critical
Publication of EP1138483B1 publication Critical patent/EP1138483B1/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
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/18—Impression cylinders
    • 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
    • B41N7/00—Shells for rollers of printing machines
    • 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
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top 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
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/04—Intermediate layers

Definitions

  • the invention relates to a sleeve for printing rollers, preferably for anilox rollers of rotary printing presses, consisting of an inner, preferably two-layer Pipe made of stretchable material, the inside diameter of which on the Diameter of this particular roller to be adapted and that with a outer, dimensionally stable jacket tube is connected.
  • the object of the invention is therefore to provide a sleeve of the type specified create a good even and smudge-free at all speeds Pressure guaranteed.
  • this object is achieved in that the jacket tube on his End areas is provided with support disks or bushings that at least Have sections, the holes on the diameter of the roller with passoder Press fit are adjusted.
  • the sleeves designed according to the invention Ensure perfect printing at all normal roller speeds. This is probably due to the fact that the casing pipe through the end bushes or support disks without interposing the inner Tube, that is, an intermediate layer made of elastic material, connected to the roller is so that the elasticity required to pull the inner tube onto the roller can no longer introduce vibrations into the casing tube.
  • the jacket tube is expediently connected to the inner one by end bushings Connected tube, the sockets are provided with blind holes into which the support disks are fitted.
  • the socket can have a T-shaped cross section, the T-web with the Blind hole is provided.
  • the sleeves according to the invention are usually on overhung rollers reared. At least it is necessary to pull the sleeves that a Storage of the roller is removed so that the sleeve on the roller held on the fly can be raised.
  • the inner support disk expediently has a larger hole than the outer one, so that the inner support disc almost non-contact over the length of the roller up to an end collar of the roller can be postponed, on which it then sits with a snug fit or press fit.
  • the socket can be welded to the casing tube.
  • the support disc can be in the bore of the socket can be fitted with a press fit or in any other way with this be connected.
  • the jacket tube is connected by end bushings to the inner tube and that each outer sections of the bushings fit snugly or press-fit on the roller.
  • This embodiment is simplified in so far as the jacket tube only by one-piece bushings connected to both the inner tube and the roller are.
  • the outer section of the inner bushing expediently has a larger one Diameter than the outer portion of the outer sleeve. This makes possible again a simpler mounting of the bush on the roller, which is expedient done in a known manner with compressed air.
  • the sockets can be connected to the jacket tube by adhesive connections. Furthermore, the sockets can also be glued to the inner tube be connected.
  • the bushings are usually pulled open by compressed air, by axial and Radial bores of the roller is fed to the jacket.
  • compressed air used to pull up to loosen the adhesive bond leads between the bushings and the inner tube.
  • Fig. 1 is the overhung roller core 1 of an anilox or printing roller a rotary printing machine, on which a sleeve is mounted.
  • the Sleeve consists of a two-layer inner tube 2 made of elastically stretchable Material, as is known for example from DE 196 13 145 A1, to which for closer description of the inner tube is referenced.
  • the inner tube 2 is through end bushings 3 with an outer jacket tube 4, for example Aluminum, connected.
  • the bushings 3 consist of inner tubular sections 5, connect to the widened outer sections 6 shown in the Are fitted into internal turns of the casing tube 4.
  • the widened Sections 6 are connected to the casing tube 4 by welded connections 7 connected.
  • the widened sections 6 of the bushes 3 are flat blind-like Provide recesses, are pressed into the support disks 8.
  • the Support disks 8 are supported directly, that is, without an intermediate layer of the interior Tube 2, on the roll core 1.
  • the roll core 1 is at its inner end region provided with a larger diameter collar 9 on which the left Carrying disc 8 with a snug fit or press fit.
  • the support disk 8 is also supported directly with a snug fit or a press fit on the roll core 1.
  • the support disks 8 are on their Provide the inner edge with an annular groove in which a sealing ring 10 is inserted.
  • the Walzenkem 1 is provided with a central compressed air bore 11 through radial compressed air holes 12 is connected to the shell of the roll core 1. Compressed air is supplied through the compressed air holes in a known manner in order to Sliding the sleeve onto the roll core to facilitate.
  • Fig. 2 is a longitudinal section through a sleeve 14 can be seen, as on a appropriately adapted Walzenkem can be wound.
  • the sleeve 14 is made again from an inner two-layer tube 15, for example from the known from DE 19613145 A1.
  • This inner tube 15 is an outer Jacket tube 16, for example made of aluminum, connected via bushings 17.
  • the Bushings 17 are in the manner shown in internal recesses of the jacket tube 16 used and held in this by gluing.
  • the sockets 17 are ring-shaped on their outer jacket Grooves.
  • the sockets 17 are also with the inner tube 15 connected by adhesive bonds, including the inner walls the bushes 17 are provided with the adhesive grooves.
  • the outer end portion of the inner sleeve 17 is provided with a portion that protrudes beyond the inner casing tube.
  • this section 18 is the socket 17 with Padedoder Press fit on a widened collar of the roller core, not shown placed.
  • the outer bush 17 is smaller at its outer end with a section 19 Provided diameter, which also does not cover the inner tube 15 and whose diameter corresponds to the diameter of the inner tube 15, so that the Section 19 directly with a snug fit or an interference fit on the load-bearing roller core is put on.
  • the bushings 17 are adjacent to the sections 18, 19 with radial annular grooves 20 provided by axial bores 21 with the outer end faces of the bushings 17 are connected. These grooves 20 and holes 21 are used for penetration the compressed air used when pulling the sleeves between the bushings and to prevent the inner tube so that the compressed air does not vcn the bushings can loosen the inner tube.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

The sleeve comprise an inner preferably dual-layered tube of expandable material connected to an outer shape-stable jacket tube (4) which has at its ends support discs (8) or bushes which have at least sections whose bores match the diameter of the roller (1) for tight fit. The jacket tube can be connected by end sockets to the inner tube whereby the sockets have blind hole bores into which the support discs are fitted.

Description

Die Erfindung betrifft eine Hülse für Druckwalzen, vorzugsweise für Rasterwalzen von Rotationsdruckmaschinen, bestehend aus einem inneren, vorzugsweise zweischichtigem Rohr aus dehnbarem Material, dessen Innendurchmesser auf den Durchmesser der dieses zu tragen bestimmte Walze angepaßt ist und das mit einem äußeren, formstabilen Mantelrohr verbunden ist.The invention relates to a sleeve for printing rollers, preferably for anilox rollers of rotary printing presses, consisting of an inner, preferably two-layer Pipe made of stretchable material, the inside diameter of which on the Diameter of this particular roller to be adapted and that with a outer, dimensionally stable jacket tube is connected.

Bei dem Druck mit einer aus der DE 196 13 145 A1 bekannten Hülse dieser Art wurde beobachtet, daß die bedruckten Oberflächen schattierte und/oder zitterartig verwischte Bereiche aufweisen, die ihre Ursache vermutlich darin haben, daß das auf dem inneren Rohr aus dehnbarem Material mit gewisser Elastizität gehalterte Mantelrohr mit diesem ein Feder-Massensystem bildet, das insbesondere im Bereich der Eigenfrequenzen in Schwingungen gerät.When printing with a sleeve of this type known from DE 196 13 145 A1 the printed surfaces were observed to be shaded and / or tremulous have blurred areas that are probably due to the fact that the on the inner tube made of elastic material with a certain elasticity Sheath tube with this forms a spring mass system, particularly in the area of the natural frequencies starts to vibrate.

Aufgabe der Erfindung ist es daher, eine Hülse der eingangs angegebenen Art zu schaffen, die bei sämtlichen Drehzahlen einen guten gleichmäßigen und verwischungsfreien Druck gewährleistet. The object of the invention is therefore to provide a sleeve of the type specified create a good even and smudge-free at all speeds Pressure guaranteed.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß das Mantelrohr an seinen Endbereichen mit Tragscheiben oder Buchsen versehen ist, die mindestens Abschnitte aufweisen, deren Bohrungen auf den Durchmesser der Walze mit Paßoder Preßsitz angepaßt sind.According to the invention this object is achieved in that the jacket tube on his End areas is provided with support disks or bushings that at least Have sections, the holes on the diameter of the roller with passoder Press fit are adjusted.

Überraschend wurde gefunden, daß die erfindungsgemäß ausgestalteten Hülsen bei sämtlichen üblichen Drehzahlen der Walze einen einwandfreien Druck gewährleisten. Dies ist vermutlich darauf zurückzuführen, daß das Mantelrohr durch die stimseitigen Buchsen oder Tragscheiben ohne Zwischenschaltung des inneren Rohrs, also einer Zwischenlage aus elastischem Material, mit der Walze verbunden ist, so daß die zum Aufziehen des inneren Rohrs auf die Walze benötigte Elastizität keine Schwingungen mehr in das Mantelrohr einzuleiten vermag.It was surprisingly found that the sleeves designed according to the invention Ensure perfect printing at all normal roller speeds. This is probably due to the fact that the casing pipe through the end bushes or support disks without interposing the inner Tube, that is, an intermediate layer made of elastic material, connected to the roller is so that the elasticity required to pull the inner tube onto the roller can no longer introduce vibrations into the casing tube.

Zweckmäßigerweise ist das Mantelrohr durch endseitige Buchsen mit dem inneren Rohr verbunden, wobei die Buchsen mit Sacklochbohrungen versehen sind, in die die Tragscheiben eingepaßt sind. Bei dieser Ausgestaltung der Erfindung erfolgt die Verbindung des Mantelrohrs mit dem inneren elastisch aufweitbarem Rohr durch die Buchse, wobei aber in den Endbereich der Buchse eine Tragscheibe eingepaßt ist, die das Mantelrohr ohne Zwischenschaltung des Innenrohrs, also ohne eine zwischengeschaltete Lage aus elastischem Material, mit der Walze verbindet.The jacket tube is expediently connected to the inner one by end bushings Connected tube, the sockets are provided with blind holes into which the support disks are fitted. In this embodiment of the invention, the Connection of the jacket tube with the inner elastically expandable tube through the socket, but in the end region of the socket a support washer which is the jacket tube without the interposition of the inner tube, that is, without one intermediate layer made of elastic material, connects to the roller.

Die Buchse kann einen T-förmigen Querschnitt aufweisen, wobei der T-Steg mit der Sacklochbohrung versehen ist.The socket can have a T-shaped cross section, the T-web with the Blind hole is provided.

Die erfindungsgemäßen Hülsen werden üblicherweise auf fliegend gelagerte Walzen aufgezogen. Zumindest ist es zum Aufziehen der Hülsen erforderlich, daß eine Lagerung der Walze entfernt wird, so daß die Hülse auf die fliegend gehaltene Walze aufgezogen werden kann. Zweckmäßigerweise weist die innere Tragscheibe eine größere Bohrung als die äußere auf, so daß die innere Tragscheibe nahezu berührungsfrei über die Länge der Walze bis zu einem endseitigen Bund der Walze aufgeschoben werden kann, auf den diese dann mit Paß- oder Preßsitz aufsitzt. The sleeves according to the invention are usually on overhung rollers reared. At least it is necessary to pull the sleeves that a Storage of the roller is removed so that the sleeve on the roller held on the fly can be raised. The inner support disk expediently has a larger hole than the outer one, so that the inner support disc almost non-contact over the length of the roller up to an end collar of the roller can be postponed, on which it then sits with a snug fit or press fit.

Die Buchse kann mit dem Mantelrohr verschweißt sein. Die Tragscheibe kann in die Bohrung der Buchse mit Preßsitz eingepaßt werden oder in sonstiger Weise mit dieser verbunden sein.The socket can be welded to the casing tube. The support disc can be in the bore of the socket can be fitted with a press fit or in any other way with this be connected.

Nach einer anderen erfinderischen Ausgestaltung ist vorgesehen, daß das Mantelrohr durch endseitige Buchsen mit dem inneren Rohr verbunden ist und daß jeweils außenliegende Abschnitte der Buchsen mit Paß- oder Preßsitz an der Walze anliegen. Diese Ausführungsform ist in sofern vereinfacht, als das Mantelrohr nur durch einstückige Buchsen sowohl mit dem inneren Rohr als auch der Walze verbunden sind.According to another inventive embodiment it is provided that the jacket tube is connected by end bushings to the inner tube and that each outer sections of the bushings fit snugly or press-fit on the roller. This embodiment is simplified in so far as the jacket tube only by one-piece bushings connected to both the inner tube and the roller are.

Zweckmäßigerweise weist der äußere Abschnitt der inneren Buchse einen größeren Durchmesser als der äußere Abschnitt der äußeren Buchse. Dies ermöglicht wiederum ein einfacheres Aufziehen der Buchse auf die Walze, was zweckmäßigerweise in bekannter Weise mit Druckluft erfolgt.The outer section of the inner bushing expediently has a larger one Diameter than the outer portion of the outer sleeve. this makes possible again a simpler mounting of the bush on the roller, which is expedient done in a known manner with compressed air.

Die Buchsen können durch Klebverbindungen mit dem Mantelrohr verbunden sein. Weiterhin können die Buchsen auch durch Klebverbindungen mit dem inneren Rohr verbunden sein.The sockets can be connected to the jacket tube by adhesive connections. Furthermore, the sockets can also be glued to the inner tube be connected.

Das Aufziehen der Buchsen erfolgt üblicherweise durch Preßluft, die durch Axialund Radialbohrungen der Walze zu deren Mantel zugeführt wird. Um zu verhindern, daß die zum Aufziehen verwendete Druckluft zu einem Lösen der Klebverbindung zwischen den Buchsen und dem inneren Rohr führt, ist in weiterer Ausgestaltung der Erfindung vorgesehen, daß die Buchsen jeweils mit die Abschnitte mit Preßoder Paßsitz überbrückenden Entlüftungsbohrungen versehen sind.The bushings are usually pulled open by compressed air, by axial and Radial bores of the roller is fed to the jacket. To prevent, that the compressed air used to pull up to loosen the adhesive bond leads between the bushings and the inner tube is in a further embodiment the invention provided that the sockets each with the sections with press or Vent holes that bridge the fit are provided.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

Fig. 1
einen Längsschnitt durch eine erste Ausführungsform einer auf eine Raster- oder Druckwalze aufgezogenen Hülse und
Fig. 2
einen Längsschnitt durch eine zweite Ausführungsform einer Hülse.
An embodiment of the invention is explained below with reference to the drawing. In this shows
Fig. 1
a longitudinal section through a first embodiment of a sleeve mounted on an anilox or printing roller and
Fig. 2
a longitudinal section through a second embodiment of a sleeve.

Aus Fig. 1 ist der fliegend gelagerte Walzenkern 1 einer Raster- oder Druckwalze einer Rotationsdruckmaschine ersichtlich, auf den eine Hülse aufgezogen ist. Die Hülse besteht aus einem zweischichtigen Innenrohr 2 aus elastisch dehnbarem Material, wie es beispielsweise aus der DE 196 13 145 A1 bekannt ist, auf die zur näheren Beschreibung des Innenrohrs Bezug genommen wird. Das Innenrohr 2 ist durch endseitige Buchsen 3 mit einem äußeren Mantelrohr 4, beispielsweise aus Aluminium, verbunden. Die Buchsen 3 bestehen aus inneren rohrförmigen Abschnitten 5, an die verbreiterte äußere Abschnitte 6 anschließen, die in der dargestellten Weise in innere Eindrehungen des Mantelrohrs 4 eingepaßt sind. Die verbreiterten Abschnitte 6 sind mit dem Mantelrohr 4 durch Schweißverbindungen 7 verbunden. Die verbreiterten Abschnitte 6 der Buchsen 3 sind mit flachen sacklochartigen Eindrehungen versehen, in die Tragscheiben 8 eingepreßt sind. Die Tragscheiben 8 stützen sich unmittelbar, also ohne Zwischenlage des inneren Rohrs 2, auf dem Walzenkern 1 ab. Der Walzenkem 1 ist an seinem inneren Endbereich mit einem im Durchmesser vergrößerten Bund 9 versehen, an dem die linke Tragscheibe 8 mit Paß- oder Preßsitz anliegt.From Fig. 1 is the overhung roller core 1 of an anilox or printing roller a rotary printing machine, on which a sleeve is mounted. The Sleeve consists of a two-layer inner tube 2 made of elastically stretchable Material, as is known for example from DE 196 13 145 A1, to which for closer description of the inner tube is referenced. The inner tube 2 is through end bushings 3 with an outer jacket tube 4, for example Aluminum, connected. The bushings 3 consist of inner tubular sections 5, connect to the widened outer sections 6 shown in the Are fitted into internal turns of the casing tube 4. The widened Sections 6 are connected to the casing tube 4 by welded connections 7 connected. The widened sections 6 of the bushes 3 are flat blind-like Provide recesses, are pressed into the support disks 8. The Support disks 8 are supported directly, that is, without an intermediate layer of the interior Tube 2, on the roll core 1. The roll core 1 is at its inner end region provided with a larger diameter collar 9 on which the left Carrying disc 8 with a snug fit or press fit.

An dem äußeren Ende der Hülse stützt sich die Tragscheibe 8 unmittelbar ebenfalls mit Paß- oder Preßsitz auf dem Walzenkem 1 ab. Die Tragscheiben 8 sind an ihrem inneren Rand mit einer Ringnut versehen, in die ein Dichtring 10 eingsetzt ist.At the outer end of the sleeve, the support disk 8 is also supported directly with a snug fit or a press fit on the roll core 1. The support disks 8 are on their Provide the inner edge with an annular groove in which a sealing ring 10 is inserted.

Der Walzenkem 1 ist mit einer zentralen Druckluftbohrung 11 versehen, die durch radiale Druckluftbohrungen 12 mit dem Mantel des Walzenkerns 1 verbunden ist. Durch die Druckluftbohrungen wird Druckluft in bekannter Weise zugeführt, um das Aufschieben der Hülse auf den Walzenkem zu erleichtern.The Walzenkem 1 is provided with a central compressed air bore 11 through radial compressed air holes 12 is connected to the shell of the roll core 1. Compressed air is supplied through the compressed air holes in a known manner in order to Sliding the sleeve onto the roll core to facilitate.

Aus Fig. 2 ist ein Längsschnitt durch eine Hülse 14 ersichtlich, wie sie auf einen entsprechend angepaßten Walzenkem aufgezogen werden kann. Die Hülse 14 besteht wiederum aus einem inneren zweischichtigen Rohr 15, beispielsweise von der aus DE 19613145 A1 bekannten Art. Mit diesem inneren Rohr 15 ist ein äußeres Mantelrohr 16 beispielsweise aus Aluminium über Buchsen 17 verbunden. Die Buchsen 17 sind in der dargestellten Weise in innere Eindrehungen des Mantelrohrs 16 eingesetzt und in diesen durch Verklebungen gehalten. Zur Verbesserung der Klebverbindung sind die Buchsen 17 auf ihrem äußeren Mantel mit ringförmigen Nuten versehen. In entsprechender Weise sind die Buchsen 17 auch mit dem inneren Rohr 15 durch Klebverbindungen verbunden, wobei auch die inneren Wandungen der Buchsen 17 mit dem Klebstoff haltenden Ringnuten versehen sind. Der äußere Endbereich der inneren Buchse 17 ist mit einem Abschnitt versehen, der das innere Mantelrohr überragt. Mit diesem Abschnitt 18 ist die Buchse 17 mit Paßoder Preßsitz auf einen verbreiterten Bund des nicht dargestellten Walzenkems aufgesetzt.From Fig. 2 is a longitudinal section through a sleeve 14 can be seen, as on a appropriately adapted Walzenkem can be wound. The sleeve 14 is made again from an inner two-layer tube 15, for example from the known from DE 19613145 A1. With this inner tube 15 is an outer Jacket tube 16, for example made of aluminum, connected via bushings 17. The Bushings 17 are in the manner shown in internal recesses of the jacket tube 16 used and held in this by gluing. For improvement the adhesive connection, the sockets 17 are ring-shaped on their outer jacket Grooves. In a corresponding way, the sockets 17 are also with the inner tube 15 connected by adhesive bonds, including the inner walls the bushes 17 are provided with the adhesive grooves. The outer end portion of the inner sleeve 17 is provided with a portion that protrudes beyond the inner casing tube. With this section 18 is the socket 17 with Paßoder Press fit on a widened collar of the roller core, not shown placed.

Die äußere Buchse 17 ist an ihrem äußeren Ende mit einem Abschnitt 19 geringeren Durchmessers versehen, der ebenfalls das Innenrohr 15 nicht überdeckt und dessen Durchmesser dem Durchmesser des Innenrohrs 15 entspricht, so daß der Abschnitt 19 unmittelbar mit Paß- oder Preßsitz auf den tragenden Walzenkern aufgesetzt ist.The outer bush 17 is smaller at its outer end with a section 19 Provided diameter, which also does not cover the inner tube 15 and whose diameter corresponds to the diameter of the inner tube 15, so that the Section 19 directly with a snug fit or an interference fit on the load-bearing roller core is put on.

Die Buchsen 17 sind angrenzend an die Abschnitte 18, 19 mit radialen Ringnuten 20 versehen, die durch Axialbohrungen 21 mit den äußeren Stirnseiten der Buchsen 17 verbunden sind. Diese Nuten 20 und Bohrungen 21 dienen dazu, das Eindringen der beim Aufziehen der Hülsen verwendeten Preßluft zwischen die Buchsen und dem Innenrohr zu verhindern, so daß die Druckluft die Buchsen nicht vcn dem Innenrohr lösen kann.The bushings 17 are adjacent to the sections 18, 19 with radial annular grooves 20 provided by axial bores 21 with the outer end faces of the bushings 17 are connected. These grooves 20 and holes 21 are used for penetration the compressed air used when pulling the sleeves between the bushings and to prevent the inner tube so that the compressed air does not vcn the bushings can loosen the inner tube.

Claims (10)

  1. Sleeve for pressing rollers, preferably for screen rollers of rotary printing machines consisting of an internal, preferably two-layer tube made of expandable material whose inside diameter is adapted to the diameter of the roller intended to carry said material and that is connected with an outer dimensionally stable casing tube,
    characterized in that casing tube (4, 16) on its terminal areas is provided with carrying discs (8) or bushings (17) that at least have segments whose boreholes are adapted to the diameter of the roller (1) with a snug fit or a pressing fit.
  2. Sleeve according to Claim 1, characterized in that casing tube (4) is connected by terminal bushings (3) with internal tube (2) and that bushings (3) are provided with blind boreholes into which are fitted the carrying discs (8).
  3. Sleeve according to Claim 1 or 2, characterized in that bushing (3) has a T-shaped longitudinal profile and that the T-bridge (6) is provided with the blind borehole.
  4. Sleeve according to one of Claims 1 to 3, characterized in that the internal carrying disc (8) has a borehole with a larger diameter than the outer carrying disc (8).
  5. Sleeve according to one of Claims 1 to 4, characterized in that bushings (3) are welded together with casing tube (4).
  6. Sleeve according to Claim 1, characterized in that casing tube (16) is connected by terminal bushings (17) with the internal tube (15) and that the particular outside-located segments (18, 19) of bushings (17) rest against the roller with a snug fit or a pressing fit.
  7. Sleeve according to Claim 6, characterized in that the outer segment of the internal bushing has a larger diameter than the outer segment of the external bushing (17).
  8. Sleeve according to Claim 6 or 7, characterized in that bushings (17) are connected to the casing tube (16) by means of adhesive connections.
  9. Sleeve according to one of Claims 6 to 8, characterized in that bushings (17) are connected with the internal tube by means of adhesive connections.
  10. Sleeve according to one of Claims 6 to 9, characterized in that bushings (17) in each case are provided with ventilation boreholes and/or ducts (20, 21) that bridge the segments (18, 19) with a pressing fit or a snug fit.
EP01102540A 2000-03-31 2001-02-06 Sleeve for impression rollers Expired - Lifetime EP1138483B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10016063A DE10016063C2 (en) 2000-03-31 2000-03-31 Sleeve for printing rollers
DE10016063 2000-03-31

Publications (3)

Publication Number Publication Date
EP1138483A2 EP1138483A2 (en) 2001-10-04
EP1138483A3 EP1138483A3 (en) 2003-02-12
EP1138483B1 true EP1138483B1 (en) 2004-04-21

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ID=7637133

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Application Number Title Priority Date Filing Date
EP01102540A Expired - Lifetime EP1138483B1 (en) 2000-03-31 2001-02-06 Sleeve for impression rollers

Country Status (5)

Country Link
US (1) US6604462B2 (en)
EP (1) EP1138483B1 (en)
AT (1) ATE264753T1 (en)
DE (2) DE10016063C2 (en)
ES (1) ES2219445T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3915921B2 (en) * 2003-09-09 2007-05-16 船井電機株式会社 Method for manufacturing roller for paper conveyance and image forming apparatus
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EP1138483A2 (en) 2001-10-04
ATE264753T1 (en) 2004-05-15
DE10016063C2 (en) 2003-08-14
DE50102026D1 (en) 2004-05-27
EP1138483A3 (en) 2003-02-12
DE10016063A1 (en) 2001-10-11
US6604462B2 (en) 2003-08-12
ES2219445T3 (en) 2004-12-01
US20010025580A1 (en) 2001-10-04

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