EP1316423A1 - Rouleau tramé et méthode pour sa production et retraitement - Google Patents

Rouleau tramé et méthode pour sa production et retraitement Download PDF

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Publication number
EP1316423A1
EP1316423A1 EP01128288A EP01128288A EP1316423A1 EP 1316423 A1 EP1316423 A1 EP 1316423A1 EP 01128288 A EP01128288 A EP 01128288A EP 01128288 A EP01128288 A EP 01128288A EP 1316423 A1 EP1316423 A1 EP 1316423A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
core
layer
anilox
anilox roller
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
EP01128288A
Other languages
German (de)
English (en)
Other versions
EP1316423B1 (fr
Inventor
Wilfried Dr. Kolbe
Klaus Schirrich
Bodo Steinmeier
Wolfgang Brusdeilins
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.)
Fischer and Krecke GmbH and Co KG
Original Assignee
Fischer and Krecke 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 Fischer and Krecke GmbH and Co KG filed Critical Fischer and Krecke GmbH and Co KG
Priority to DE50108789T priority Critical patent/DE50108789D1/de
Priority to EP01128288A priority patent/EP1316423B1/fr
Priority to ES01128288T priority patent/ES2252137T3/es
Priority to US10/305,414 priority patent/US6915569B2/en
Publication of EP1316423A1 publication Critical patent/EP1316423A1/fr
Application granted granted Critical
Publication of EP1316423B1 publication Critical patent/EP1316423B1/fr
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
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • B41C1/05—Heat-generating engraving heads, e.g. laser beam, electron beam
    • 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
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/06—Shells for rollers of printing machines for inking rollers
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49544—Roller making
    • Y10T29/49547—Assembling preformed components
    • Y10T29/49549—Work contacting surface element assembled to 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49544—Roller making
    • Y10T29/49547—Assembling preformed components
    • Y10T29/49558—Includes securing removable cover on roller
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49544—Roller making
    • Y10T29/4956—Fabricating and shaping roller work contacting surface element
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49544—Roller making
    • Y10T29/4956—Fabricating and shaping roller work contacting surface element
    • Y10T29/49563—Fabricating and shaping roller work contacting surface element with coating or casting about a core

Definitions

  • the invention relates to a method for producing an anilox roller, in particular for flexographic printing machines, with a cylindrical core and a releasably held on the core sleeve, which on its surface a grid layer having a cell grid. Furthermore, the invention relates to an anilox roller produced by this method and a method for reprocessing the same.
  • the ink is applied to the printing cylinder by means of an anilox roller applied.
  • the surface of the anilox roll runs through a Chamber doctor, in which the fine cells of the cell grid with printing ink to fill. If the anilox roller then at another circumferential point with the printing cylinder comes into contact, so the ink is on the Drukkenden Transfer parts of the printing cylinder.
  • Known anilox rolls usually have a dimensionally stable cylindrical core made of metal, which at both ends provided with stub axles or detachable mounted on a continuous axis, so that it can be driven in rotation in the frame the printing press can be stored.
  • the surface becomes of the cylindrical core provided with a primer layer on which then immediately applied the existing ceramic material grid layer becomes.
  • the individual wells are finally in with the help of a laser formed the surface of the grid layer.
  • anilox roller If the anilox roller is to be reprocessed after prolonged use, because the grid layer is damaged or worn, so must the entire grid layer and possibly also the primer layer are abraded before after renewed priming again applied a new grid layer and can be provided by laser processing with the cell grid. This Reprocessing process is very complicated and expensive.
  • an anilox roller is known in which the cylindrical core not made of metal, but of carbon fiber reinforced plastic and thus has a lower weight with the same stability. This will indeed facilitates the handling of the anilox roller and improves the smoothness, however The reprocessing of the anilox roller is similarly costly as with anilox rollers made of metal.
  • anilox rollers of the type mentioned are known on the so-called “sleeve technique” based.
  • the grid layer not directly on the cylindrical core, but on a hollow cylindrical Sleeve attached, which then pushed onto the cylindrical core becomes. With this technique, it is possible to pull the sleeve back from the core and replace it with a new sleeve.
  • the core has a compressed air system with which it is possible to use compressed air at places distributed on the surface of the core, and so the Expand sleeve, so it is easier to postpone and peel off.
  • This Procedure sets a special and relatively expensive structure ahead of the sleeve.
  • the compressed air is in fact after Possibility to enlarge only the inner diameter of the sleeve while the outer diameter should remain as unchanged as possible, otherwise the ceramic material existing grid layer cracked and / or could flake off. Consequently, the sleeve on the inside of a dimensionally stable as possible Layer, for example made of glass fiber reinforced plastic, a compressible Layer, which compresses when expanding the inner diameter can be. So that the pneumatic pressure evenly on the inner surface of the sleeve should be under the compressible layer again be provided a very thin inner layer of stiffer material.
  • the sleeve is very good Has concentricity properties.
  • This requirement can be with sleeves difficult to meet with the structure described above, because of the presence the compressible layer the direct support of the stiffer outer layer lost on the dimensionally stable core.
  • the outer layer of the sleeve must therefore have a high intrinsic stability. This can only be done reach through correspondingly large layer thicknesses, so that an increased Material consumption and increased costs result.
  • the large wall thickness of the sleeve for example, in the order of 25 mm or more, especially difficult For larger print widths, the handling of the sleeve and enlarged the inertial mass of the sleeve and thus the risk of imbalance, so that the desired smoothness is difficult to achieve.
  • the big wall thickness of the Sleeves also complicates compliance with the framework for the outer diameter the anilox roller and for its inner diameter, i. for the Outer diameter of the core.
  • the outer diameter of the anilox roller must the installation conditions in the inking unit of the printing press as well as considerations Take into account related to the printing process, for example Drying time of the ink, centrifugal force on the circumference of the anilox roller, construction the Kammerrakel etc ..
  • the object of the invention is to provide a method which has a simple and cost-effective production and recycling of anilox rolls allows.
  • This object is achieved in a method of the type mentioned by solved that first the sleeve is mounted on the core and only then the grid layer is formed on the sleeve.
  • the sleeve In the manufacture of the grid layer thus the sleeve is already firmly seated on the Core, so that the sleeve no longer widened and pushed onto the core needs to be and thus no risk of damage to the grid layer consists. As a result, the sleeve also has no compressive layer needs, its wall thickness can be reduced considerably, so that material and costs are saved. In addition, this may be proportionate support rigid material of the sleeve directly on the rigid core, so that too ensures a perfect concentricity of the anilox roller with a very thin sleeve can be. In that regard, according to the inventive method produced anilox roll similar advantages as conventional anilox rolls without sleeve.
  • the main advantage over the sleevelose anilox rollers is that a recycling of the grid layer in case of damage or wear significantly less effort and lower costs. Namely, since the sleeve is releasably held on the core, if one Reprocessing is required, just the old sleeve with the sitting on it Raster layer removed and disposed of. Instead of the old sleeve Then a new sleeve is raised, which is due to the small wall thickness and the simple construction of the sleeve causes only low costs, and on the new sleeve will, when it sits firmly back on the core, the new grid layer built up. Thus, the time-consuming grinding of the old is unnecessary Raster layer, so that the time and effort required for reprocessing the anilox roller is significantly reduced.
  • the core may have a compressed air system as in the known sleeve technique, the sliding of the sleeve on the core and the subsequent removal of the sleeve is relieved from the core. Since the sleeve when pushed onto the Core still carries no grid layer, it is harmless if the outside diameter of the sleeve by the compressed air supply temporarily increased. Since the sleeve according to the invention only then withdrawn from the core again If, in any case, a reconstruction of the grid layer is required, can Destruction of the grid layer when removing the old sleeve accepted become.
  • the wall thickness and the material of the sleeve are preferably one on top of the other matched, that the inherent elasticity of the sleeve pushing on the core - possibly supported by the compressed air system - allows and then a tight fit of the sleeve on the core ensured. Any initial or postponement The roundness of the sleeve that results from this can subsequently be reduced by twisting or other surface treatment of the sleeve on the Core are removed before the grid layer is applied.
  • the application the grid layer can be similar to conventional anilox rolls done without a sleeve by first a primer layer and then a Ceramic layer is applied during application or by post-processing gets a very uniform thickness and then on the surface with Help of a laser the wells of the cell grid are formed. if necessary can improve the surface finish by post-processing become.
  • the sleeve preferably has only one Thickness of 2 - 5 mm, and there is, apart from the ceramic layer and possibly the primer layer, only from a single layer of material, preferably from fiberglass reinforced plastic.
  • Figure 1 shows (not to scale) a view of a core 10 of an anilox roller.
  • the core 10 has the shape of a hollow cylinder and consists of a dimensionally stable and as light as possible material, such as steel, aluminum or preferably carbon fiber reinforced plastic.
  • stub axles 12 At both ends of the Kerns 10 are stub axles 12 which are designed to support the anilox roller in serve a printing machine, not shown.
  • the stub axle 12 may also be provided a continuous axis on which the core 10 is releasably clamped by means of a hydraulic system, not shown.
  • the compressed air system housed via the compressed air can be fed, which has several on the surface of the core 10th distributed openings 14 emerges.
  • the openings 14 form at least one the circumference of the core 10 encircling ring 16, which in close proximity to the end of the core 10 is (right in Figure 1), from which a sleeve 18 on the core is deferred.
  • the sleeve 18 is shown in Figure 1 right next to the core 10 and consists from a thin-walled, single-layered tube made of glass fiber reinforced plastic, which has a wall thickness of, for example 2 mm and the inner diameter coincides with the outer diameter of the core 10.
  • the compressed air system is activated, so that compressed air from the openings 14 exits and the sleeve 18 expands as soon as it has been postponed to one end of the kernel.
  • the compressed air system is switched off, so that the sleeve 18 elastically shrinks and then firmly on the Core 10 is sitting. This condition is shown in FIG.
  • FIG. 3 shows, in an enlarged detail relative to FIG. 2, the single-walled wall of FIG Sleeves 18, which is supported directly on the peripheral surface of the core 10. If necessary, the peripheral surface of the seated on the core 10 sleeves 18, for example, on a lathe, be reworked, so that a exactly cylindrical and centered on the axis of the core 10 shape of the peripheral surface of the sleeve 18 is reached. Any slight deformations of the sleeve, which may have occurred while pushing on the core 10, on eliminated this way.
  • a primer layer is formed on the peripheral surface of the sleeve 18 20 applied ( Figure 4), then on the known method a ceramic layer 22 ( Figure 5) is applied, whose thickness is set very precisely is, so that the peripheral surface of the ceramic layer 22 is exactly cylindrical is.
  • the screen roller shown in FIG. 7 is obtained as the end product 26. Since in this anilox roll provided with the cell grid 26 Ceramic layer 22 directly over the relatively thin and in essential incompressible layer of glass fiber reinforced plastic, the the sleeve 18 forms, supported on the rigid core 10, there are excellent Runnability of the anilox roller 26, the given low stability Has weight and a correspondingly low moment of inertia and at a very favorable ratio between the outside diameter and the diameter of the core 10 is made.
  • the existing only a single plastic layer sleeve 18 can be with Low cost of materials use.
  • the sleeve 18 When the ceramic layer 22 (screen layer) forming the well grid 24 worn or damaged, the sleeve 18 is released from the core 10 and disposed of. For this purpose, the compressed air system is temporarily activated again, so that the sleeve can be easily removed from the core 10. Subsequently a new sleeve 18 is pushed in the same way as in FIG. 1, and the steps shown in Figs. 3 to 6 are repeated so that you get a new-value anilox roller with little effort.
EP01128288A 2001-11-29 2001-11-29 Rouleau tramé et méthode pour sa production et retraitement Expired - Lifetime EP1316423B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE50108789T DE50108789D1 (de) 2001-11-29 2001-11-29 Rasterwalze und Verfahren zu ihrer Herstellung und Wiederaufbereitung
EP01128288A EP1316423B1 (fr) 2001-11-29 2001-11-29 Rouleau tramé et méthode pour sa production et retraitement
ES01128288T ES2252137T3 (es) 2001-11-29 2001-11-29 Rodillo de trama y procedimiento para su fabricacion y reprocesado.
US10/305,414 US6915569B2 (en) 2001-11-29 2002-11-26 Method of manufacturing an anilox roller for a flexographic printing press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01128288A EP1316423B1 (fr) 2001-11-29 2001-11-29 Rouleau tramé et méthode pour sa production et retraitement

Publications (2)

Publication Number Publication Date
EP1316423A1 true EP1316423A1 (fr) 2003-06-04
EP1316423B1 EP1316423B1 (fr) 2006-01-25

Family

ID=8179388

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01128288A Expired - Lifetime EP1316423B1 (fr) 2001-11-29 2001-11-29 Rouleau tramé et méthode pour sa production et retraitement

Country Status (4)

Country Link
US (1) US6915569B2 (fr)
EP (1) EP1316423B1 (fr)
DE (1) DE50108789D1 (fr)
ES (1) ES2252137T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019104593A1 (de) * 2019-02-05 2020-08-06 Koenig & Bauer Ag Farbübertragungsform sowie Verfahren zu dessen Herstellung
WO2020161057A1 (fr) 2019-02-05 2020-08-13 Koenig & Bauer Ag Système d'impression en creux d'une machine à imprimer et plaque de transfert d'encre d'un cylindre de dispositif d'encrage

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7222568B1 (en) * 2005-12-23 2007-05-29 Fischer & Krecke Gmbh & Co. Method for flexographic multi-color printing using anilox rollers having different diameters
JP5310522B2 (ja) * 2009-12-14 2013-10-09 富士ゼロックス株式会社 端部蓋部品及びその製造方法、像保持体、画像形成組立体並びに画像形成装置
IT1402297B1 (it) * 2010-09-08 2013-08-28 Uteco Converting Spa Struttura di cilindro retinato particolarmente per macchine da stampa flessografiche
CN105886997B (zh) * 2015-01-26 2018-03-13 上海工程技术大学 一种基于热喷涂技术的印刷机网纹辊制备方法
US9505206B1 (en) * 2016-03-15 2016-11-29 Harper Corporation Of America Cladless anilox sleeve for use in flexographic printing
EP3867067A1 (fr) * 2018-10-17 2021-08-25 3M Innovative Properties Company Systèmes d'impression comprenant un motif d'impression rigide et rouleau encreur présentant une surface élastiquement déformable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0791477A2 (fr) * 1996-02-22 1997-08-27 Praxair S.T. Technology, Inc. Douille pour un rouleau de transfert pour liquide et procédé de fabrication
EP1132209A1 (fr) * 2000-02-10 2001-09-12 Fischer & Krecke Gmbh & Co. Cylindre tramé pour une presse flexographique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9025517D0 (en) * 1990-11-23 1991-01-09 Zed Instr Ltd Laser engraving apparatus
US6142073A (en) * 1999-08-20 2000-11-07 Paper Converting Maching Company Method and apparatus for exchanging a roll of a printing press
DE10012189A1 (de) * 2000-03-13 2001-09-20 Heidelberger Druckmasch Ag Druckwerk in einer Druckmaschine
US6716148B1 (en) * 2001-07-17 2004-04-06 Double E Co., Inc. Metal-sleeved carbon fiber anilox roller base

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0791477A2 (fr) * 1996-02-22 1997-08-27 Praxair S.T. Technology, Inc. Douille pour un rouleau de transfert pour liquide et procédé de fabrication
EP1132209A1 (fr) * 2000-02-10 2001-09-12 Fischer & Krecke Gmbh & Co. Cylindre tramé pour une presse flexographique

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019104593A1 (de) * 2019-02-05 2020-08-06 Koenig & Bauer Ag Farbübertragungsform sowie Verfahren zu dessen Herstellung
WO2020161057A1 (fr) 2019-02-05 2020-08-13 Koenig & Bauer Ag Système d'impression en creux d'une machine à imprimer et plaque de transfert d'encre d'un cylindre de dispositif d'encrage
US11504962B2 (en) 2019-02-05 2022-11-22 Koenig & Bauer Ag Gravure printing units for printing onto substrate, printing press with such a gravure printing unit, ink transfer forme and method for setting up an inking unit cylinder comprised by a gravure printing unit

Also Published As

Publication number Publication date
US6915569B2 (en) 2005-07-12
ES2252137T3 (es) 2006-05-16
US20030134732A1 (en) 2003-07-17
EP1316423B1 (fr) 2006-01-25
DE50108789D1 (de) 2006-04-13

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