EP0683046B1 - Hülse zum Montieren auf Trägerzylindern von Flexodruckmaschinen - Google Patents

Hülse zum Montieren auf Trägerzylindern von Flexodruckmaschinen Download PDF

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Publication number
EP0683046B1
EP0683046B1 EP95450008A EP95450008A EP0683046B1 EP 0683046 B1 EP0683046 B1 EP 0683046B1 EP 95450008 A EP95450008 A EP 95450008A EP 95450008 A EP95450008 A EP 95450008A EP 0683046 B1 EP0683046 B1 EP 0683046B1
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EP
European Patent Office
Prior art keywords
sleeve
support cylinder
chamber
wall
sleeves
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
EP95450008A
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English (en)
French (fr)
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EP0683046A1 (de
Inventor
Jean Francille
Philippe Francille
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Individual
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Individual
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Publication date
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Publication of EP0683046A1 publication Critical patent/EP0683046A1/de
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Publication of EP0683046B1 publication Critical patent/EP0683046B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes

Definitions

  • the subject of the present invention is a printing sleeve. intended to be mounted on cylinders flexographic printing machines.
  • flexographic printing machines that include either cylinders on which are directly fixed the printing plates, for example with adhesives double-sided, i.e. support cylinders on which are arranged on the plate sleeves, arranged coaxially at the support cylinder and designed to receive pictures printing.
  • This sleeve-bearing cylinder is provided, at its periphery, with through holes, which creates an air mattress as soon as the sleeve begins to be sufficiently threaded, in front thus facilitate the mounting of this sleeve.
  • the present invention aims to overcome the drawbacks of the prior art as just summarized, in allowing sleeves to be mounted relatively easy, allowing installation even on cylinders full or not equipped with air passage holes, by providing different variants for applications with flexographic printing machines whose mechanical characteristics are variable, leading to the manufacture of products with a lower cost price to those of the prior art, and by providing for the use of current materials, especially composite materials, so to realize, in addition to the other advantages, savings of weight.
  • the flexographic printing sleeve intended to be mounted on a support cylinder comprises two flanges arranged at the ends a rigid annular cylinder with an outer wall and an interior wall, designed to be coaxial with support cylinder, including the outer face of the outer wall is designed to support a printing plate and the inner wall is composed of a deformable wall elastically and radially, over at least part of its length, the inner face of this inner wall being arranged opposite the external face of the support cylinder, inner wall which forms with the outer wall a hermetic chamber, connected by a valve to a source of fluid, so as to deform the elastically deformable wall and press it on the outside of the cylinder support.
  • the elastically deformable wall has a diameter nominal interior greater than the outside diameter of the support cylinder and the fluid introduced into the chamber, after mounting is at a pressure higher than that of the atmospheric pressure
  • the sleeve includes an inflatable envelope, disposed in the hermetic chamber, equipped with a fluid connection nozzle so as to allow it to swell.
  • An improvement of the invention provides for having a bar fitted with sizes, arranged between the envelope and the inner face of the outer wall of the sleeve.
  • the elastically deformable wall has an inside diameter nominal lower than the outside diameter of the cylinder support and the fluid introduced into the chamber, before mounting, is at a pressure lower than that of the pressure atmospheric.
  • the sleeve is made in composite material.
  • This composite material comprises at least one layer of cellular honeycomb material with at least one layer of resin on the inside and at least one layer of resin on the outer face.
  • the layer of nest material of bees is shaped by wrapping with a section annular.
  • one flanges and the inner and outer walls of the sleeve chamber simultaneously came from manufacturing.
  • the present invention also relates to methods of mounting such chamber sleeves.
  • the support cylinder is referenced 10 and 12 the printing sleeve.
  • the support cylinder comprises axes in a known manner 14 allowing it to be mounted in a printing machine flexographic.
  • It includes an outer face 16 on which is mounted the sleeve, coaxially.
  • the sleeve comprises two walls, one 18, exterior and the other 20, interior.
  • Two flanges 22 and 24 are also arranged at the ends of this sleeve, between the outer wall and interior so as to delimit a chamber 26, annular.
  • One of the flanges in this case, the flange 22, is equipped with a fluid supply valve 28.
  • the outer wall 18 comprises, considered concentrically, an inner face 30 and an outer face 32.
  • the interior wall 20 comprises an outer face 34 and an inner face 36.
  • the inner wall being arranged coaxially to the support cylinder, the inside face is opposite and even in contact with the outside face of the support cylinder.
  • This wall is made of a material having elastic qualities which allow a certain expansion and / or some radial retraction, of the order of a few hundredths of a millimeter to give an order of greatness.
  • the interior wall 20 of the sleeve has a nominal diameter larger than that of the support cylinder 10.
  • the inner wall of the sleeve is pressed on the support cylinder by its inner face, which causes sufficient friction forces to ensure perfect immobilization of the sleeve on the cylinder support.
  • FIGS. 2A and 2B a variant has been shown. of realization, which uses the vacuum during assembly.
  • the inner wall of the sleeve has, this time, a diameter interior lower than that of the plate cylinder, except to the right of the flanges, and the fluid is in fact a socket vacuum which allows the interior of the room 26.
  • the assembly is in this case carried out in the manner next :
  • the sleeve chamber is depressed so that the inside diameter of the sleeve is greater than the diameter of the support cylinder then the sleeve is introduced coaxially around this cylinder.
  • the vacuum is broken in the room, which has for effect of allowing the inner wall to resume its nominal inside diameter which is smaller than that of cylinder, the difference being of the order of a few hundredths of a millimeter, which therefore generates forces pressing the sleeve onto the cylinder, thus avoiding any rotation of the sleeve relative to the cylinder.
  • the interior wall 20, elastically deformable, has a nominal internal diameter greater than that of the cylinder as in the example shown in Figures 1A and 1B.
  • the pressurized fluid When the pressurized fluid is introduced into the envelope, it swells and rests on the face exterior of the interior wall which plates the sleeve against the cylinder, thus avoiding any untimely rotation of the sleeve relative to the cylinder.
  • the outer face of the outer wall is designed to receive a plate and a means of fixing it photo on this side is to have sizes 40, i.e. a set of tips 42 which, in this mode of realization, are retractable, following a generator outside of the sleeve.
  • the sizes include a connecting bar 44, arranged in chamber 26 and more particularly between the envelope 38 and the inner face 30 of the outer wall.
  • Springs 46 in this embodiment, leaf springs, are interposed between the casing 38 and the inner face 30 of the outer wall.
  • the tips 42 pass through through holes formed in the outer wall 18.
  • a groove is machined in the flanges so as to guiding the ends of the bar 44 of the sizes 40.
  • the grooves avoid a too large a retraction in amplitude which could lead at an exit of the points out of the holes which serve as guidance.
  • Figure 5 shows schematically a set of four sleeves a , b , c and d arranged on the same support cylinder by means of the mounting device according to the invention.
  • the invention also relates to a sleeve suitable for this type of mounting and more particularly a sleeve composite.
  • the elasticity of the inner wall 20 must be very weak since it only takes a few hundredths of millimeters of play to allow coaxial mounting of the sleeve on a cylinder, the surfaces being ground.
  • the present invention proposes to produce a monolithic sleeve by wrapping at least one layer of honeycomb material with a binding polymer on a mandrel 47, mechanically expandable for removal of the workpiece, whose expanded outside diameter is exactly that of a support cylinder designed to receive the muff.
  • the polymer is studied to cause shrinkage of the sleeve of the order of a few hundredths of a millimeter after polymerization.
  • the sleeve can expand in the area elastic of these few hundredths when subjected to radial pressure.
  • the sleeve is made in one piece which includes one of the two flanges, in this case the flange 24, as well as the two outer 18 and inner 20 walls.
  • the inner wall 20, which must have a certain elasticity, has a thickness less than that of the wall exterior 18 which requires great rigidity.
  • FIG. 6A there is shown so complementary matrices 48 and 50.
  • Such a layer of a conductive coating can be deposited by electrolysis.
  • Such machines generally include a roller inking, dipping, pressed against the roller a scraper ensuring the removal of the ink by excess.
  • the sleeve according to the invention can be mounted on support cylinders for two applications flexography and heliography.

Claims (12)

  1. Hülse (12) für Flexodruck bestimmt zum Anbringen an einem Trägerzylinder (10) und umfassend zwei Flansche (22, 24), die an den Enden eines ringförmigen starren Zylinders angeordnet sind, der eine Außenwand (18) und eine Innenwand (20) besitzt, die so beschaffen sind, daß sie zum Trägerzylinder koaxial sind, wobei die Außenfläche (32) der Außenwand (18) dazu vorgesehen ist, einen Druckstock zu tragen, und die Innenwand (20) aus einer wenigstens auf einem Teil ihrer Länge elastisch und radial verformbaren Wand gebildet ist, wobei die Innenfläche (36) dieser Innenwand gegenüber der Außenfläche (16) des Trägerzylinders (10) angeordnet ist, wobei die Innenwand mit der Außenwand eine hermetisch dichte Kammer (26) bildet, die über ein Ventil (28) mit einer Fluidquelle verbunden ist, um die elastisch verformbare Wand zu verformen und diese an die Außenfläche des Trägerzylinders anzuschmiegen.
  2. Hülse nach Anspruch 1, dadurch gekennzeichnet, daß die elastisch verformbare Wand (20) einen Nenninnendurchmesser besitzt, der größer als der Außendurchmesser des Trägerzylinders (10) ist, und daß das in die Kammer eingeleitete Fluid nach der Montage mit einem Druck beaufschlagt wird, der höher als der Atmosphärendruck ist.
  3. Hülse nach Anspruch 2, dadurch gekennzeichnet, daß sie eine aufblasbare Hülle (38) umfaßt, die in der hermetisch dichten Kammer (26) angeordnet ist und mit einem Fluidanschlußnippel versehen ist, um ihre Expansion in der Kammer zu ermöglichen.
  4. Hülse nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß sie einen mit Registerstiften (40) versehenen Schieber (44) enthält.
  5. Hülse nach Anspruch 1, dadurch gekennzeichnet, daß die elastisch verformbare Wand (20) einen Nenninnendurchmesser besitzt, der kleiner als der Außendurchmesser des Trägerzylinders (10) ist, und daß das in die Kammer eingeleitete Fluid vor der Montage mit einem Druck beaufschlagt wird, der kleiner als der Atmosphärendruck ist.
  6. Hülse nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß sie aus einem Verbundwerkstoff hergestellt ist.
  7. Hülse nach Anspruch 6, dadurch gekennzeichnet, daß der Verbundwerkstoff wenigstens eine Materialschicht aus wabenförmigen Zellen enthält und wenigstens eine Harzschicht auf der Innenfläche und wenigstens eine Harzschicht auf der Außenfläche aufweist.
  8. Hülse nach Anspruch 7, dadurch gekennzeichnet, daß die Schicht aus wabenförmigem Material durch eine Umwicklung mit kreisförmigem Querschnitt geformt ist.
  9. Hülse nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, daß einer der Flansche (24), die Innenwand (20) und die Außenwand (18) der Kammer (26) der Hülse gleichzeitig hergestellt sind, um eine monolithische Einheit zu verwirklichen.
  10. Hülse nach irgendeinem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß am äußeren Umfang der Hülse eine leitende Schicht aufgebracht ist, die graviert sein kann.
  11. Verfahren zur Anbringung wenigstens einer Hülse mit Kammer nach deinem der Ansprüche, 1 bis 4 und 6 bis 10 auf einem Trägerzylinder, dadurch gekennzeichnet, daß es die folgenden Schritte enthält:
    koaxiales Aufschieben der Hülse(n) (12) auf den Trägerzylinder (10), wobei der Nenninnendurchmesser der Hülse(n) größer als der Durchmesser des Trägerzylinders ist und
    Unbeweglichmachen der Hülse(n) auf dem Trägerzylinder durch Druckbeaufschlagung der Kammer (26).
  12. Verfahren zur Anbringung wenigstens einer Hülse mit Kammer nach Anspruch 1 oder 5 auf einem Trägerzylinder, dadurch gekennzeichnet, daß es die folgenden Schritte enthält:
    Druckbeaufschlagung der Kammer (26) der Hülse(n) (12), deren Nenninnendurchmesser wenigstens auf einem Teil ihrer Länge kleiner als der Durchmesser des Trägerzylinders (10) ist, damit der Innendurchmesser der Hülse(n) größer als der Durchmesser des Trägerzylinders ist,
    koaxiales Aufschieben der Hülse(n) (12) auf den Trägerzylinder (10) und
    Immobilisieren der Hülse(n) (12) auf dem Trägerzylinder (10) durch Beseitigen des Unterdrucks in der Kammer (26), wobei die Hülse(n) den Trägerzylinder (10) zusammendrückt (zusammendrücken), da ihr Nenninnendurchmesser kleiner als der Durchmesser des Trägerzylinders ist.
EP95450008A 1994-05-19 1995-05-18 Hülse zum Montieren auf Trägerzylindern von Flexodruckmaschinen Expired - Lifetime EP0683046B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9406416 1994-05-19
FR9406416A FR2720030B1 (fr) 1994-05-19 1994-05-19 Dispositif de montage de manchons d'impression sur des cylindres supports de machines flexographiques.

Publications (2)

Publication Number Publication Date
EP0683046A1 EP0683046A1 (de) 1995-11-22
EP0683046B1 true EP0683046B1 (de) 1999-08-18

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Application Number Title Priority Date Filing Date
EP95450008A Expired - Lifetime EP0683046B1 (de) 1994-05-19 1995-05-18 Hülse zum Montieren auf Trägerzylindern von Flexodruckmaschinen

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EP (1) EP0683046B1 (de)
AT (1) ATE183445T1 (de)
DE (1) DE69511454T2 (de)
ES (1) ES2138174T3 (de)
FR (1) FR2720030B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005090075A2 (de) 2004-03-18 2005-09-29 Polywest Kunststofftechnik Saueressig & Partner Gmbh & Co. Kg Hülse für druckmaschinen

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2742379B1 (fr) * 1995-12-14 1998-03-06 Komori Chambon Dispositif de fixation d'un manchon sur un axe d'un cylindre porte-cliches
US6740530B1 (en) 2000-11-22 2004-05-25 Xerox Corporation Testing method and configurations for multi-ejector system
DE102004013552A1 (de) * 2004-03-19 2005-10-06 Goss International Montataire S.A. Aufzughülse für einen Zylinder in einer Druckmaschine
DE202008002329U1 (de) * 2008-02-20 2009-06-25 Spilker Gmbh Auswechselbare Druckwalze
US8307764B2 (en) * 2009-02-17 2012-11-13 Luminite Products Corporation Printing sleeve
ES2712654B2 (es) * 2017-11-13 2019-10-16 Rossini Spain Printing Rollers SAU Camisa adaptadora para máquinas de impresión flexográfica

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146709A (en) * 1962-04-09 1964-09-01 West Essex Printing Plate Inc Method and apparatus for mounting printing sleeves
FR2386416A1 (fr) * 1977-04-04 1978-11-03 Strachan & Henshaw Ltd Procede et moyens pour fabriquer et monter des manchons d'impression

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE508010A (de) * 1950-02-10
US2801694A (en) * 1955-12-06 1957-08-06 Jagenberg Werke Ag Fastening means for roll cutting machine assembly
FR1369471A (fr) * 1963-07-02 1964-08-14 Wean Damiron Mandrin expansible par chambre dilatable
US3510082A (en) * 1967-11-24 1970-05-05 Arthur T Williams Pneumatic chuck

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146709A (en) * 1962-04-09 1964-09-01 West Essex Printing Plate Inc Method and apparatus for mounting printing sleeves
FR2386416A1 (fr) * 1977-04-04 1978-11-03 Strachan & Henshaw Ltd Procede et moyens pour fabriquer et monter des manchons d'impression

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005090075A2 (de) 2004-03-18 2005-09-29 Polywest Kunststofftechnik Saueressig & Partner Gmbh & Co. Kg Hülse für druckmaschinen

Also Published As

Publication number Publication date
ES2138174T3 (es) 2000-01-01
DE69511454D1 (de) 1999-09-23
FR2720030A1 (fr) 1995-11-24
ATE183445T1 (de) 1999-09-15
FR2720030B1 (fr) 1996-08-09
EP0683046A1 (de) 1995-11-22
DE69511454T2 (de) 2000-08-03

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