EP1506859A2 - Rouleau d'un dispositif d'encrage ou de mouillage d'une machine d'impression offset et son procédé de fabrication - Google Patents

Rouleau d'un dispositif d'encrage ou de mouillage d'une machine d'impression offset et son procédé de fabrication Download PDF

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Publication number
EP1506859A2
EP1506859A2 EP04018650A EP04018650A EP1506859A2 EP 1506859 A2 EP1506859 A2 EP 1506859A2 EP 04018650 A EP04018650 A EP 04018650A EP 04018650 A EP04018650 A EP 04018650A EP 1506859 A2 EP1506859 A2 EP 1506859A2
Authority
EP
European Patent Office
Prior art keywords
roller
elastomer
outer layer
incompressible
inner layer
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.)
Withdrawn
Application number
EP04018650A
Other languages
German (de)
English (en)
Other versions
EP1506859A3 (fr
Inventor
Karl-Ulrich Schäfer
Axel Prof. Ritz
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.)
SCHAEFER GMBH & CO. KG
Original Assignee
Schafer 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 Schafer KG filed Critical Schafer KG
Publication of EP1506859A2 publication Critical patent/EP1506859A2/fr
Publication of EP1506859A3 publication Critical patent/EP1506859A3/fr
Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a roller, as used for inking and / or dampening is used by offset printing machines, as well as a method for Production of such a roller and a printing machine provided therewith.
  • the invention is based on the object, an aforementioned roller, a manufacturing method thereof and a printing machine provided therewith to create, with which the disadvantages of the state of the art can be avoided and in particular the provision of the rollers can be adjusted more easily.
  • the roller has a structure with at least has two layers.
  • the layers are on a roll body applied, which can also be a roll core. This means, that advantageously the extension of the layers over the roll length runs so that in this embodiment, the layer sequence in one area the roller, which is actively used, the other layer sequences equivalent.
  • An outer layer of the roll is made of an incompressible material, in particular an elastomer. Furthermore, it is an inner layer the roller provided, which consists of a compressible material, in turn, in turn, an elastomer.
  • This at least two-layer structure has, inter alia, the advantage that, for example with a relatively soft and compressible inner layer a certain flexibility of the roller can be achieved.
  • an incompressible outer layer can be selected which is much harder than conventional rollers. Especially This hard outer layer also has a number of advantages.
  • the structure of the roller can be multi-layered with a Plurality of layers having a function of elasticity.
  • a two-layered construction with an outer layer and an inner layer. These two layers can be applied to a roll core, body or the like become.
  • Such a roller body can simultaneously be the axis of rotation or have.
  • the compressible inner layer should be much softer than the incompressible one Outer layer. This ensures the adaptability of the roller.
  • the outer layer in turn can be made much harder be as with conventional rollers this use purpose.
  • the elastomer and in particular the incompressible elastomer can to be a rubber.
  • a flexible layer can also be a so-called sponge rubber or the like can be used, so a rubber with air pockets.
  • the compressible and incompressible layers are chosen such that that at different Beiwolfen the roller their Do not change color or water transport properties.
  • the parameters compressive stress and shear rate between the elastomer surfaces or between the surfaces of the individual Layers of meaning are in particular the parameters compressive stress and shear rate between the elastomer surfaces or between the surfaces of the individual Layers of meaning.
  • the incompressible outer layer also serves through its hardness the mechanical protection of the roller against surface damage, for example, scratches or the like.
  • it can according to a variant of the invention may be made relatively thin. Your thickness can be in the range of a few millimeters.
  • the compressible inner Layer on the other hand is advantageously several times thicker than the outer layer. The factor can be between 5 and 10 here.
  • the elastomer coating on one of the two layers, in particular the outer layer, consists of a tube corresponding material.
  • This tube is mounted on the roller for production the roller.
  • Such a tube can be, for example, by coextrusion getting produced. This reduces the manufacturing effort and generates higher production qualities.
  • the roller has a structure with a roller core on the one hand and at least two layers, on the other hand.
  • An outer layer the roller may be formed, for example, as previously described. This also applies to an inner layer or an inner layer.
  • An elastomer coating may be in tubular form.
  • Such a Hose can be made by a process of coextrusion be as described above.
  • An elastomeric coating Using a hose represents a very time-saving procedure represents.
  • the elastomer hose can be stretched. Such Stretching can take place, for example, by means of compressed air before they be applied to the roll body or the roll core.
  • Adhesion of an elastomer hose on the roll body which in particular necessary for the transmission of shear forces or torques is high. Adhesion-increasing methods are, for example, shrinkage. Under thermal influence the elastomer tube shrinks the substructure.
  • a printing press which Particularly advantageous is an offset printing press.
  • a used for this Roller can be constructed as described above has been.
  • a particular advantage is to be considered that according to a According to the invention, the printing press without adjustment mechanism, with which the provision of the rollers can be adjusted can, get along.
  • Figure 1 is a section through a multilayer structure of a roll according to the invention for a Color / Dampening represents an offset printing press.
  • FIG. 1 shows a roller 11 in section. In essence, this is View sectional view schematically. That means the Size and distance ratios are not to scale, but for the sake of clarity greater are shown.
  • the roller 11 has a core 13 as a so-called roller body, which contains an axis 14. About this axis 14, the roller 11 rotates operational.
  • the core 13 may be made of metal, for example.
  • the Axis 14 may be inserted or protrude in one piece.
  • a base layer is applied, which, however, optional is.
  • the thickness of the base layer 16 can be in a relatively large range vary, for example, from a few millimeters to a few centimeters. As a rule, this also depends on the roll diameter total from.
  • Inner layer 18 On the base layer 16, which, for example, as a particularly good adhesion-enabling layer can be formed, which is Inner layer 18 applied.
  • the inner layer consists of a compressible Material, as stated above, advantageously from a Elastomer.
  • the thickness of the inner layer 18 can also in a wide range, advantageously between one and thirty millimeters.
  • the compressibility or hardness depends the inner layer on the one hand by the layer thickness and on the other of the choice of material.
  • the outer layer 20 On the inner layer 18, the outer layer 20. This consists of a aforementioned incompressible material or is incompressible. Again, a corresponding elastomer can be used become.
  • the thickness of the outer layer 20 is in the range of a few Millimeters, for example between one and five millimeters.
  • the compressible material may, for example in the form of moss or Foam rubber or cellular rubber made of natural rubber or synthetic rubber available.
  • Acrylonitrile-butadiene rubber NBR
  • HNBR hydrogenated acrylonitrile butadiene rubber
  • CSM chlorosulfonated polythylene
  • CR chloroprene
  • ECO ethylene chlorohydrin rubber
  • PU polyurethane
  • the incompressible material may be natural rubber or synthetic rubber consist, preferably acrylonitrile-butadiene rubber (NBR), hydrogenated acrylonitrile-butadiene rubber (HNBR), chlorosulfonated Polyethylene (CSM), chloroprene (CR), ethylene chlorohydrin rubber (ECO) or polyurethane (PU).
  • NBR acrylonitrile-butadiene rubber
  • HNBR hydrogenated acrylonitrile-butadiene rubber
  • CSM chlorosulfonated Polyethylene
  • CSM chloroprene
  • ECO ethylene chlorohydrin rubber
  • PU polyurethane
  • the Layers by layered construction by means of coating or application appropriate material and vulcanization.
  • the compressibility the inner layer 18 may be, for example, a sponge rubber be achieved, ie by air pockets or the like. in the rubber material.
  • hoses the elastomeric material.
  • the hoses with the appropriate Dimensions produced as a starting material for example by coextrusion and in large material lengths. After that will be Corresponding pieces cut to length and mounted on the core 13.
  • On the layers can be, for example, glued or otherwise Bonding agents are fixed.
  • both layers 18 and 20 by fitting appropriate elastomer hoses manufacture.
  • the elastomeric hoses be stretched, for example by means of compressed air as before described.
  • roller 11 of Figure 1 it is also possible not just a single inner layer 18, but more inner layers provided. This makes it possible, for example, graded hardnesses the layers or graded compressibilities or other properties to provide the layers.
  • the outer layer 20 is incompressible and thus relatively hard or not yielding.
  • This has the advantage that this makes the outer layer resistant to the Delivery of plasticizers or chemical additives in paints or Dampening, with which the roller 11 comes into contact.
  • the shrinkage of the printing plate edges in the printing units is less harmful.
  • one is aging Outer layer slower or less. Tough outer layers 20 make it possible through the compressible inner layers 18 to provide a roller which is adjustable overall in terms of its hardness, However, their surface is more resistant than that in the desired softness is common.
  • Nipp be 20 achieves further advantages with an incompressible outer layer, for example, because the elongation is less. Furthermore arises a lower shear rate between the roller 11 and the counter roll and thereby also a lower shear load, for example a printing ink, which is processed with the roller 11. This will the ink is less biased, has a higher cohesion and tends less so to the so-called fog.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP04018650A 2003-08-14 2004-08-06 Rouleau d'un dispositif d'encrage ou de mouillage d'une machine d'impression offset et son procédé de fabrication Withdrawn EP1506859A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10337758 2003-08-14
DE2003137758 DE10337758A1 (de) 2003-08-14 2003-08-14 Walze für Farb- oder Feuchtwerke von Offset-Druckmaschinen

Publications (2)

Publication Number Publication Date
EP1506859A2 true EP1506859A2 (fr) 2005-02-16
EP1506859A3 EP1506859A3 (fr) 2006-04-19

Family

ID=33560340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04018650A Withdrawn EP1506859A3 (fr) 2003-08-14 2004-08-06 Rouleau d'un dispositif d'encrage ou de mouillage d'une machine d'impression offset et son procédé de fabrication

Country Status (2)

Country Link
EP (1) EP1506859A3 (fr)
DE (1) DE10337758A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009071580A1 (fr) * 2007-12-07 2009-06-11 Manroland Ag Dispositif d'enduction équipé d'un cylindre porte-cliché et d'au moins un rouleau enducteur dans une machine de traitement
EP1911586A3 (fr) * 2006-10-11 2011-01-19 manroland AG Mécanisme d'encrage court pour une machine de traitement
EP2520699A1 (fr) * 2011-05-04 2012-11-07 SUPERBA (Société par Actions Simplifiée) Rouleau pour tête d'étanchéité et procédé de fabrication

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152387A (en) * 1961-10-16 1964-10-13 Dayco Corp Rollers
EP0850782A1 (fr) * 1996-12-30 1998-07-01 Jean Francille Manchon composite à revêtement céramique, adapté notamment pour les manchons de transfert d'encre
US5953992A (en) * 1998-07-31 1999-09-21 Monarch Marking Systems, Inc. Method of making ink roller assembly
US6006665A (en) * 1997-10-30 1999-12-28 Didde Web Press Corporation Pliable anilox roller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152387A (en) * 1961-10-16 1964-10-13 Dayco Corp Rollers
EP0850782A1 (fr) * 1996-12-30 1998-07-01 Jean Francille Manchon composite à revêtement céramique, adapté notamment pour les manchons de transfert d'encre
US6006665A (en) * 1997-10-30 1999-12-28 Didde Web Press Corporation Pliable anilox roller
US5953992A (en) * 1998-07-31 1999-09-21 Monarch Marking Systems, Inc. Method of making ink roller assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1911586A3 (fr) * 2006-10-11 2011-01-19 manroland AG Mécanisme d'encrage court pour une machine de traitement
WO2009071580A1 (fr) * 2007-12-07 2009-06-11 Manroland Ag Dispositif d'enduction équipé d'un cylindre porte-cliché et d'au moins un rouleau enducteur dans une machine de traitement
EP2520699A1 (fr) * 2011-05-04 2012-11-07 SUPERBA (Société par Actions Simplifiée) Rouleau pour tête d'étanchéité et procédé de fabrication
CN102765189A (zh) * 2011-05-04 2012-11-07 修博巴公司 用于密封头的辊和制造方法
FR2974820A1 (fr) * 2011-05-04 2012-11-09 Superba Sa Rouleau pour tete d'etancheite et procede de fabrication

Also Published As

Publication number Publication date
EP1506859A3 (fr) 2006-04-19
DE10337758A1 (de) 2005-03-10

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