EP1531046A1 - Support cylindrique recevant un manchon d'impression échangeable et procédé pour sa fabrication - Google Patents

Support cylindrique recevant un manchon d'impression échangeable et procédé pour sa fabrication Download PDF

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Publication number
EP1531046A1
EP1531046A1 EP04026661A EP04026661A EP1531046A1 EP 1531046 A1 EP1531046 A1 EP 1531046A1 EP 04026661 A EP04026661 A EP 04026661A EP 04026661 A EP04026661 A EP 04026661A EP 1531046 A1 EP1531046 A1 EP 1531046A1
Authority
EP
European Patent Office
Prior art keywords
carrier
pressure
peripheral surface
core
outer peripheral
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
EP04026661A
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German (de)
English (en)
Other versions
EP1531046B1 (fr
Inventor
Hans-Georg Schepers
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.)
Schepers GmbH and Co KG
Original Assignee
Schepers GmbH and Co 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 Schepers GmbH and Co KG filed Critical Schepers GmbH and Co KG
Priority to PL04026661T priority Critical patent/PL1531046T3/pl
Publication of EP1531046A1 publication Critical patent/EP1531046A1/fr
Application granted granted Critical
Publication of EP1531046B1 publication Critical patent/EP1531046B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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 present invention relates to a cylindrical Carrier for receiving a by axial sliding and removing removable hollow cylindrical pressure sleeve and a method for producing the carrier.
  • Carrier and printing sleeves of the type mentioned are known from the practical application in the printing industry. It is customary so far, the postponement and Remove the replaceable pressure sleeves with the help of a Make compressed air cushion.
  • the carrier has on its outer periphery a number of small holes, from the inside of the carrier forth with compressed air fed are.
  • the supplied compressed air forms when pushing or removing the pressure sleeve an air cushion between the Outer circumference of the carrier and the inner circumference of the pressure sleeve. This can be pushed or peeled off with a low effort done because the compressed air cushion for a small but sufficiently large expansion the inner diameter of the pressure sleeve ensures.
  • nickel tubes are used, the wall thickness maximum is about 0.3 to 0.5 mm. This is one of the Use and in the selection of printing sleeves very strong limited. In addition, such thin pressure sleeves very sensitive to mechanical damage.
  • the Task a carrier of the type mentioned above create, in terms of on this windable Compression sleeves offers greater freedom of choice and with more stable and therefore insensitive sleeves can be combined is.
  • a good run the printing cylinder forming unit of support and Sleeve can be ensured and a mutual rotation be excluded from the carrier and sleeve in the printing operation.
  • a method for producing a suitable Bearers are created.
  • a carrier of the type mentioned which is characterized in that the carrier comprises a carrier core and a radially outer surrounding carrier shell, that the carrier jacket is connected at least at the end face tightly connected to the carrier core, in that between the outer circumference of the carrier core and the inner circumference of the carrier jacket there is provided a gap space which can be charged with a pressure medium, that at a first pressure p0 of the pressure medium in the gap space of the support jacket at least over part of its axial length has a radially inwardly deviating from the cylindrical shape, a kraftearmes pushing and pulling a pressure sleeve gestattende outer peripheral surface and that at a second, higher pressure p2 of the pressure medium in the gap space of the carrier jacket has an expanded, partially or completely against the inner circumference of a deferred pressure sleeve frictionally engaging outer peripheral surface.
  • the carrier the component, its outer diameter for the purpose of postponement and Removal of pressure sleeves is changeable.
  • the pressure sleeves, which should be used together with the carrier do not need to be changeable in your inside diameter too be.
  • This is advantageously achieved that pressure sleeves with a greater wall thickness and in particular with different wall thicknesses combined with a carrier can be.
  • This can be done with a single carrier relatively large range of print lengths, that is from Compression sleeve outer circumferences, are covered.
  • This offers for printing companies the advantage of having a relative small number of carriers, even if they do Compression sleeves with many different print lengths, ie Outer perimeter lengths, use. The required investments for carriers can be greatly reduced in this way become.
  • the carrier according to the invention at least as comfortable as the previously known carrier with Compressed air cushion, so that in this respect no Smears have to be made.
  • a mutual twist of carrier and pressure sleeve is due to the frictional engagement between the expanded Carrier jacket and the pressure sleeve safely excluded, so that in this regard, no problems are to be feared in the operation of a printing press.
  • the carrier coat between the two ends along several circumferentially extending Connecting lines is connected to the carrier core, wherein the gap through several with each other in for the Pressure medium permeable connection standing part-gap spaces is formed.
  • the partial gap spaces by recesses running in the circumferential direction of the carrier core are formed, which project from the outside, in the circumferential direction of the carrier core extending webs are limited.
  • This embodiment offers in particular the advantage that the carrier in the circumferential direction completely remains rotationally symmetric, so that no imbalances arise can.
  • the carrier core and the carrier coat Made of steel or aluminum and by Welds are connected together.
  • a further embodiment of the carrier according to the invention provides that the carrier coat on its outer circumference provided with an elastic coating.
  • These elastic coating on the outer circumference of the carrier coat on the one hand ensures increased frictional engagement between the outer circumference of the coating and the inner circumference the pressure sleeve and the other for an improved Compensation of deviations of the outer peripheral surface the carrier of an ideal cylinder shape. This will be ensures that deviations of the outer shape of the carrier shell from the cylindrical shape is not up to the affect the outer peripheral surface of the pressure sleeve; much more the outer peripheral surface of the pressure sleeve remains perfect cylindrical, even if the outer peripheral surface of the carrier shell is not a perfect cylinder surface. hereby ensures a high-quality print result.
  • the elastic Coating by a rubber coating or by a support is formed from polyurethane or silicone rubber.
  • the coatings mentioned on the one hand offer the desired reinforced friction and on the other hand the desired Form balance, where the materials both are sufficiently wear resistant and durable as well their processing do not require too much effort.
  • the carrier core is a hollow cylinder is and at its end faces ever an inserted Stirnend Published each having a Lagerachsstummel and that by at least one front end a channel for Zuund / or Exhaustion of the pressure medium is performed.
  • P refers The channel or channels run concentrically through the Lagerachsstummel, creating an imbalance even with a channel guide through the Lagerachsstummel is avoided.
  • Media also in a built-in a printing press Condition of carrier and pressure sleeve supply or discharge, what the change of a printing sleeve in one allowed in a printing machine installed state of the carrier.
  • the carrier core means for generating and / or changing the pressure be arranged of the pressure medium, wherein the device from outside the Suker operable or switchable is.
  • This embodiment of the carrier offers in particular the advantage that he has no external facilities for the Generation, supply and discharge of pressure medium needed. Rather, all are for the change of pressure of the pressure medium in the gap required funds in the Integrated carrier. This makes the use of the carrier independent of it possible, whether in a printing company a suitable pressure medium source is present or not.
  • the device is preferably one in a front end Front end or bearing stub axle of the carrier core accommodated piston-cylinder arrangement.
  • These Arrangement is designed so that by moving the Piston of the piston-cylinder assembly in the gap space a selectable pressure of the pressure medium can be set can, without being supplied from the outside pressure medium or must be removed.
  • the piston is preferably through an externally supplied adjusting tool or by a displaceable from the outside adjusting device.
  • a suitable feed opening is appropriate concentric with the relevant Lagerachsstummel or front end of the carrier core formed around a maintain rotationally symmetrical structure of the carrier.
  • the print medium can be Gas, preferably air, or a liquid, preferably Oil, or a viscous mass, preferably lubricating grease, be.
  • the method provides that a carrier core and a radially surrounding outer support jacket to form a loadable with a pressure medium gap space between the outer periphery of the carrier core and the inner circumference of the carrier shell are at least the front end sealed together and that is then processed at a pressure p1 of the pressure medium in the gap of the carrier jacket on its outer peripheral surface into a cylindrical shape, after which the carrier jacket at a pressure p0, which is smaller than the pressure p1, a radially inwardly deviating from the cylindrical shape, a low-force pushing and withdrawing a pressure sleeve gestattende form assumes its outer peripheral surface and at a pressure p2, which is higher than the pressure p1, an expanded, partially or fully against the inner periphery of a deferred pressure sleeve frictionally fitting shape of its outer peripheral surface assumes.
  • the carrier jacket at a pressure p1 of the Processed pressure medium in the gap to a cylindrical shape will ensure that at the lower Pressure p0 the outer circumference of the carrier shell due to it own elasticity a radially inward of the ideal cylindrical shape assumes a different shape. in the State with the pressure p0 is therefore the carrier coat at least over most of its outer peripheral surface in the Diameter smaller than the inner diameter of an associated one Pressure sleeve. If a pressure sleeve on the carrier is deferred and the pressure in the gap above the Pressure p1 is increased to an even higher pressure p2, initially takes the outer peripheral surface of the carrier again their cylindrical shape, they get at the pressure p1 Has.
  • the further pressure increase does not provide more for further expansion of the outer circumference of the carrier, but only for an increase in the contact pressure of the Outside circumference of the carrier to the inner circumference of the sleeve, there the sleeve is not here in terms of its inner diameter is changeable.
  • the pressure p2 is useful by experiments determined and selected so high that a sufficient secure friction between carrier and pressure sleeve ge réellerleitstet is, the mutual twists in the operation of the pressure cylinder formed by the carrier and printing sleeve safely excludes in a printing press.
  • the Pressure p0 can be, for example, the atmospheric air pressure or ambient pressure, whereby the generation of a vacuum, which would be associated with greater technical effort, is not required.
  • the reduction of the outside diameter of the wearer is due to the elastic Properties of the carrier shell without further aids, so that overall a very simple, yet reliable Construction without any joints or other wearing elements is achieved.
  • Figure 1 of the drawing shows partly in view, partly in cut representation of a carrier 1, a pressure sleeve 2 carries, wherein the unit of carrier 1 and pressure sleeve 2 forms a printing cylinder.
  • the carrier 1 consists of a hollow cylindrical in its basic form Carrier core 10, the outside under release a gap space 11 of a likewise hollow cylindrical Support jacket 12 is surrounded.
  • the carrier core 10 and the carrier shell 12 are sealed together. As a result, a closed gap 11 is formed.
  • the parts 10, 12 and 15 of the carrier 1 are made of metal, especially made of steel or aluminum, what the necessary Stability ensured and trouble-free welds allowed.
  • Lagerachsstummel 15 'and the associated front end 15 extends from axially outside Coming a bore 16 axially and concentrically in the direction to the inside of the carrier 1, but ends before the hollow Interior of the carrier 1 at a distance in front of the axially inner End face of Stirnend ceremoniess 15. From the inner end of the Bore 16 extends a bore 16 'in the radial direction outwards into the gap 11.
  • a piston-cylinder unit 17 housed in the axially inner end region of the bore 16 .
  • This piston-cylinder unit 17 has an adjustable piston, with which the pressure of a in the gap 11 and in the Bore 16 'located pressure medium to be changed can.
  • an adjusting screw 17 ' provided in a not specifically shown Thread within the bore 16 is guided.
  • Figure 2 shows a sectional view of the structure of the carrier 1 near its left end in Figure 1 front end.
  • Lower left in FIG. 2 is a part of the front end piece 15 with the radially extending bore 16 'recognizable.
  • the front end 15 is in the hollow cylindrical carrier core 10 used rotationally.
  • the carrier core 10 has a row on its outer periphery of circumferential recesses, the are separated by circumferential ridges 13. On In this way, a gap 11 is formed by a Row of axially adjacent, formed by the webs 13 separate part-Spaltsammlung 11 ' is.
  • the partial gaps 11 ' are in each other a permeable to the pressure medium located therein Connection.
  • the carrier coat 12 is along the front and in the circumferential direction Welds 14, 14 'tight and firm with the Carrier core 10 connected.
  • the carrier core has 10 a significantly higher material thickness than the carrier coat 12.
  • the carrier shell 12 has a lower material thickness, which is dimensioned so that in case of a change the pressure of the pressure medium in the gap 11 and in the Partial gap 11 'a deformation of the outer peripheral surface 12 'of the carrier shell 12 causes.
  • the pressure sleeve 2 here is a relatively large thickness, for that ensures that the pressure sleeve 2 has a fixed inner and outer diameter having, exerted by from inside Forces can not be increased.
  • the gap space 11 with the pressurized Printing medium becomes a secure frictional engagement between the outer peripheral surface 12 'of the carrier shell 12 and the inner peripheral surface 21 of the pressure sleeve 2 causes, so that mutual Twists between the carrier 1 and the pressure sleeve 2 does not occur when used in a printing press can.
  • the Carrier coat 12 due to its own elasticity again back to a shape that has a smaller outside diameter has, whereby then peeling off the Pressure sleeve 2 and pushing on another pressure sleeve 2 easily and with little effort is possible.
  • a rubber coating 18 on the outer peripheral surface 12 'of the carrier shell 12 is attached.
  • These Gummitation 18 has the purpose, on the one hand an improved Friction between the outer peripheral surface of the rubber coating 18 and the inner peripheral surface 21 of the pressure sleeve 2 to achieve and second, a surface shape compensation provide, in the event that the outer peripheral surface 12 'of the Carrier jacket 12 in its expanded state one of an ideal cylindrical shape deviating surface shape Has. These shape deviations are then through the gum 18 or an equivalent elastic coating balanced, so that there is no danger that Shape deviations of the outer peripheral surface 12 'of the carrier jacket 12 except for the outer peripheral surface 20 of the Pressure sleeve 2 can propagate. This is in everyone Trap an absolutely cylindrical surface shape of the outer circumferential surface 20 of the pressure sleeve 2 and thus a good Guaranteed print quality with high quality.
  • the gap space 11 'with pressure medium under a Pressure p1 filled wherein the pressure p1 is greater than that above-mentioned pressure p0 and smaller than that also previously mentioned pressure p2.
  • the pressure p1 becomes the carrier coat 12
  • the carrier coat 12 at its Outer peripheral surface 12 'to an exactly cylindrical shape processed, e.g. by a turning and / or grinding process.
  • the carrier coat 12 arises as a result of its own Resetting force back, reducing its outer peripheral surface 12 'assumes a surface shape which is radially to inside deviates from the previously adopted cylindrical shape. At least over most of the outer peripheral surface 12 'thus the diameter of the carrier 1 is reduced and the pressure sleeve 2 can in this state low on power pushed the carrier 1 or for the purpose of a sleeve replacement be deducted from the carrier 1.

Landscapes

  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
EP04026661A 2003-11-12 2004-11-10 Support cylindrique recevant un manchon d'impression échangeable et procédé pour sa fabrication Not-in-force EP1531046B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04026661T PL1531046T3 (pl) 2003-11-12 2004-11-10 Cylindryczny dźwigar do osadzania wymiennej tulei drukowej i sposób wytwarzania dźwigara

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10352817 2003-11-12
DE10352817A DE10352817A1 (de) 2003-11-12 2003-11-12 Zylindrischer Träger für die Aufnahme einer auswechselbaren Druckhülse und Verfahren zur Herstellung des Trägers

Publications (2)

Publication Number Publication Date
EP1531046A1 true EP1531046A1 (fr) 2005-05-18
EP1531046B1 EP1531046B1 (fr) 2008-01-02

Family

ID=34428691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04026661A Not-in-force EP1531046B1 (fr) 2003-11-12 2004-11-10 Support cylindrique recevant un manchon d'impression échangeable et procédé pour sa fabrication

Country Status (5)

Country Link
EP (1) EP1531046B1 (fr)
AT (1) ATE382480T1 (fr)
DE (2) DE10352817A1 (fr)
ES (1) ES2298667T3 (fr)
PL (1) PL1531046T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110216976A (zh) * 2019-07-16 2019-09-10 深圳市兴博防伪技术开发有限公司 一种胶辊

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297413B (de) * 1965-12-09 1969-06-12 Saueressig Kg Geb Walze mit drehfest an einen Walzenkern angeschlossenem Mantel
US4934266A (en) * 1987-09-11 1990-06-19 Officine Meccaniche G. Cerutti S.P.A. Printing roller for a rotary press
EP0736382A1 (fr) * 1995-03-20 1996-10-09 Erminio Rossini S.P.A. Mandrin pour un cylindre d'impression démontable
US6161478A (en) * 1999-11-02 2000-12-19 The Holdrite Co., Inc. Printing cylinder assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297413B (de) * 1965-12-09 1969-06-12 Saueressig Kg Geb Walze mit drehfest an einen Walzenkern angeschlossenem Mantel
US4934266A (en) * 1987-09-11 1990-06-19 Officine Meccaniche G. Cerutti S.P.A. Printing roller for a rotary press
EP0736382A1 (fr) * 1995-03-20 1996-10-09 Erminio Rossini S.P.A. Mandrin pour un cylindre d'impression démontable
US6161478A (en) * 1999-11-02 2000-12-19 The Holdrite Co., Inc. Printing cylinder assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110216976A (zh) * 2019-07-16 2019-09-10 深圳市兴博防伪技术开发有限公司 一种胶辊

Also Published As

Publication number Publication date
ATE382480T1 (de) 2008-01-15
EP1531046B1 (fr) 2008-01-02
ES2298667T3 (es) 2008-05-16
DE502004005815D1 (de) 2008-02-14
DE10352817A1 (de) 2005-06-23
PL1531046T3 (pl) 2008-06-30

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