EP0653313B1 - Procédé de fabrication d'une forme d'impression en forme de manchon - Google Patents

Procédé de fabrication d'une forme d'impression en forme de manchon Download PDF

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Publication number
EP0653313B1
EP0653313B1 EP94117571A EP94117571A EP0653313B1 EP 0653313 B1 EP0653313 B1 EP 0653313B1 EP 94117571 A EP94117571 A EP 94117571A EP 94117571 A EP94117571 A EP 94117571A EP 0653313 B1 EP0653313 B1 EP 0653313B1
Authority
EP
European Patent Office
Prior art keywords
blank
register
plate
sleeve
shaped
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
EP94117571A
Other languages
German (de)
English (en)
Other versions
EP0653313A1 (fr
Inventor
Eduard Dr. Hoffmann
Johann Winterholler
Wolfgang Prem
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0653313A1 publication Critical patent/EP0653313A1/fr
Application granted granted Critical
Publication of EP0653313B1 publication Critical patent/EP0653313B1/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
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/18—Curved printing formes or printing cylinders
    • B41C1/182—Sleeves; Endless belts
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/36—Means for registering or alignment of print plates on print press structure
    • 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

Definitions

  • the invention relates to a method for producing a sleeve-shaped printing form, especially for offset printing a metallic material for a forme cylinder Printing machine, starting from a plate-shaped blank, which is clamped in register in a welding device and there the opposite, the beginning and end of the printing form forming plate edges welded by means of a laser beam be so that a printing form sleeve with coherent Circumferential surface arises.
  • DE-A-38 28 341 describes a method for welding sheet metal parts by means of a laser, spatial also on spatially shaped sheet metal parts winding welds can be made clean. This will be two Sheet metal parts with mutually overlapping hems in a holding device held immovable to each other. By means of a laser beam in one joint trimming step cuts both sheet metal parts simultaneously. Then their altitudes measured to the component surface changed to the opposing abutting edges of the two sheet metal parts to be able to weld together.
  • the object underlying the present invention is to be seen in that to improve the generic method in that the tin snips dispensed with and a cost saving can be achieved and still a exact dimensional cutting of the plate-shaped blank is guaranteed.
  • the blank 1 is in the form of a plate made of a metallic Workpiece, which is usually in the form of a tape, in which the Width corresponding to the particular forme cylinder and rough in the length greater than that for the perimeter of the printing form Cut the intended size.
  • the plate punch provides at the same time the blank 1 in the area to be joined Plate edges 5 a, 5 b with outside the intended printing area a register device in the form of a fitting hole system. It understands yourself that any kind of attacks, markings or other aids with which an appropriate fixation or Alignment of the plate edges 5 a, 5 b in the welding device is guaranteed, would be just as suitable.
  • the device for rounding the plate-shaped blank 1 is in known manner with retaining strips 2 a, 2 b in the form of Squeegees with a small distance over the entire length distributed, integrated adjustable and removable vacuum cups 3 designed to hold the blank 1. Furthermore are the suction bars 2 a, 2 b with pin registers 4 a, 4 b correct centering in the fitting hole system of the plate-shaped Cut 1 equipped.
  • the fixation in register can also be used for plate-shaped fixtures Cut without a pre-punched pass hole system and in the further method steps of the invention Blank to be welded to a sleeve by the blank is inserted into the welding device with sufficient protrusion, the two retaining strips with a smaller distance than that theoretically correct length of the printing form and then positioned be moved to the correct length to tighten the plate.
  • Vacuum suction cup 3 used.
  • the plate material consists of a magnetizable metal is used to fix the blank in the Welding device a magnetic device is also conceivable. In principle, you can insert the printing form in register however, a mechanical clamping device can also be used.
  • a laser beam 6 a, 6 b is used as a cutter and for true-to-size lengths of the blank 1 on both sides Plate edges 5 a, 5 b used (Fig. 5).
  • Laser cutting of flat sheets, even in complicated ones Contours and sharp corners is state of the art. Corresponding the light beam obeys the laws of Optics. So it can be guided with mirrors and lenses and change in cross section almost arbitrarily.
  • the advantage of the laser as a cutting device is mainly in the very low thermal damage to the cut edges, the high Cutting speed with constant quality and Possibility to automate the process.
  • Fig. 6 shows the overlap-free merging of the beginning and the end of the plate edges that are cut to size 8 a, 8 b, which are now welded together.
  • welding is again carried out with a focused laser beam 9 the heat exposure is limited to a narrow zone, and the Laser beam can penetrate deep into the material. Heat load and warpage of the weld metal are compared to other thermal Procedure extremely low.
  • the dimensionally accurate laser cutting in the welding device can there is no need for an external shear.
  • the for register recording of the plate blank 1 in the Welding device necessary register punchings in the sheet after fixing by the retaining strips 2 a, 2 b superfluous and can be cut to length after laser cutting can be removed together with the waste pieces 7 a, 7 b. This creates a closed sleeve surface, on which no print media is interfering in the Punching out punches.
  • Another particular advantage is the fact that the laser-cut plate edges 8 a, 8 b, due to the Process relatedness of laser cutting and laser welding can be optimally coordinated, so that even a optimal weld quality is created.
  • To apply the printing form sleeve to the forme cylinder can known facilities such.
  • the sleeve is expanded by means of compressed air on the Form cylinder pushed on.
  • the removal of the compressed air causes a positive adhesion of the printing form on the form cylinder.
  • the Coating and exposure of the printing form can on the one hand before Welding the plate-shaped blank outside the printing press by photochemical means, on the other hand after postponing the Printing form sleeve by placing the printing form on the form cylinder all around is coated and exposed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Laser Beam Processing (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Plates And Materials Therefor (AREA)

Claims (4)

  1. Procédé pour la réalisation d'une forme d'impression en forme de manchon, en particulier pour l'impression offset, à partir d'un matériau métallique, pour le cylindre imprimeur d'une machine d'imprimerie, partant d'une pièce découpée en forme de plaque, que l'on serre dans un dispositif de soudage conformément au repérage et où l'on soude au moyen d'un rayon laser les bords de plaque opposés constituant le début et la fin de la forme d'impression, de manière à ce qu'il en résulte un manchon de forme d'impression présentant une surface périphérique continue,
       caractérisé en ce que
       la pièce découpée (1) en forme de plaque, dont la largeur correspond à celle du cylindre d'impression, est mise à longueur à une dimension approximative supérieure à celle prescrite pour la forme d'impression, par emboutissage à partir d'un matériau métallique, que la pièce découpée (1) est introduite sans chevauchement, à l'état cintré conformément au repérage dans le dispositif de soudage sous forme de pièce d'usinage estampée mais non pas mise à longueur conformément aux prescriptions, est mise à longueur dans le dispositif de soudage au moyen du rayon laser servant d'outil de découpe (6a, 6b), de sorte qu'il se produise au moins une rognure (7a, 7b), que la rognure (7a, 7b) est éliminée, que les deux bords de plaque (8a, 8b) formant le début et la fin de la forme d'impression sont opposés l'un à l'autre sans chevauchement et soudés entre eux.
  2. Procédé pour la réalisation d'une forme d'impression en forme de manchon selon la revendication 1, caractérisé en ce que, à l'état cintré et conforme au repérage, la découpe 1 est mise à longueur conformément aux prescriptions aux deux bords de plaque opposés (5a, 5b) au moyen du rayon laser (6a, 6b), de manière à ce qu'il en résulte deux rognures (7a, 7b), qui sont éliminées toutes deux.
  3. Procédé pour la réalisation d'une forme d'impression en forme de manchon selon l'une des revendications précédentes, caractérisé en ce que la pièce découpée (1) en forme de plaque est réalisée à l'aide d'un système de trous-repères au niveau des bords de plaque (5a, 5b) constituant le début et la fin de la pièce découpée, (1) en dehors de la plage d'impression, par estampage.
  4. Procédé pour la réalisation d'une forme d'impression en forme de manchon selon la revendication 3, caractérisé en ce que le repérage est appliqué sur les parties de surface de la pièce découpée (1) que l'on élimine en tant que rognure (7a, 7b) après la coupe au laser.
EP94117571A 1993-11-11 1994-11-08 Procédé de fabrication d'une forme d'impression en forme de manchon Expired - Lifetime EP0653313B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4338467A DE4338467C1 (de) 1993-11-11 1993-11-11 Verfahren zur Herstellung einer hülsenförmigen Druckform
DE4338467 1993-11-11

Publications (2)

Publication Number Publication Date
EP0653313A1 EP0653313A1 (fr) 1995-05-17
EP0653313B1 true EP0653313B1 (fr) 1999-01-27

Family

ID=6502312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94117571A Expired - Lifetime EP0653313B1 (fr) 1993-11-11 1994-11-08 Procédé de fabrication d'une forme d'impression en forme de manchon

Country Status (5)

Country Link
US (1) US5499580A (fr)
EP (1) EP0653313B1 (fr)
JP (1) JP2738509B2 (fr)
CA (1) CA2135213C (fr)
DE (2) DE4338467C1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19710901C1 (de) * 1997-03-15 1998-08-13 Roland Man Druckmasch Vorrichtung zur Erzeugung einer hülsenförmigen Druckform
US6322652B1 (en) * 1998-09-04 2001-11-27 3M Innovative Properties Company Method of making a patterned surface articles
DE10049283A1 (de) * 2000-10-05 2002-04-11 Hueck Folien Gmbh & Co Kg Verfahren und Vorrichtung zur Herstellung einer zylindrischen Prägeform
DE10116609A1 (de) 2001-04-03 2002-11-07 Roland Man Druckmasch Vorrichtung zur Erzeugung einer hülsenförmigen Druckform
DE10262010B4 (de) * 2002-10-31 2007-03-29 Koenig & Bauer Ag Verfahren zur Herstellung eines Rotationskörpers einer Druckmaschine
DE10250706B3 (de) * 2002-10-31 2004-05-27 Koenig & Bauer Ag Rotationskörper einer Druckmaschine
DE10250683B3 (de) * 2002-10-31 2004-03-18 Koenig & Bauer Ag Verfahren zur Herstellung eines Rotationskörpers einer Druckmaschine und einen danach hergestellten Rotationskörper
DE10260445A1 (de) * 2002-12-21 2004-07-08 Man Roland Druckmaschinen Ag Vorrichtung zur Erzeugung einer hülsenförmigen Druckform
DE102004041024B4 (de) * 2004-08-25 2006-07-06 Thyssenkrupp Steel Ag Verfahren und Vorrichtung zum Herstellen eines längsnahtgeschweißten Hohlprofils
FI20045462A (fi) * 2004-11-29 2006-05-30 Avantone Oy Embossauselin
WO2009151126A1 (fr) * 2008-06-12 2009-12-17 旭化成イーマテリアルズ株式会社 Processus et appareil de production d’un précurseur cylindrique de planche d’impression pour gravure au laser
DE102011051160A1 (de) * 2011-06-17 2012-12-20 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung geschlitzter Hohlprofile
US9375911B2 (en) 2012-11-06 2016-06-28 Rolling Optics Ab Printing tool for production of synthetic image devices and a method of manufacturing such a tool
US20150298451A1 (en) * 2014-04-17 2015-10-22 Universal Engraving, Inc. Graphic arts sleeve and support mandrel

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547873A1 (de) * 1975-10-25 1977-04-28 Kyuroku Kk Verfahren zur herstellung eines druckbandes fuer einen banddrucker
IN146438B (fr) * 1976-01-08 1979-06-02 Strachan & Henshaw Ltd
US4139145A (en) * 1977-09-21 1979-02-13 Computer Peripherals, Inc. Band welding fixture
DE2949095B1 (de) * 1979-12-06 1981-03-26 Maschinenfabrik Weingarten AG, 88250 Weingarten Einrichtung zum Verbinden zweier Materialbaender
JPS6096385A (ja) * 1983-10-27 1985-05-29 Mitsubishi Electric Corp 金属板の接合方法
JPS60121089A (ja) * 1983-12-02 1985-06-28 Mitsubishi Electric Corp レ−ザビ−ムによる鋼板のつき合わせ溶接法
JPS61255782A (ja) * 1985-05-08 1986-11-13 Kawasaki Steel Corp 鋼板ストリツプのレ−ザ溶接時の突合わせ方法
JPS61276794A (ja) * 1985-05-31 1986-12-06 Kawasaki Steel Corp 金属ストリツプの突合わせレ−ザ溶接方法
DE3803071A1 (de) * 1988-02-03 1989-08-17 Thyssen Industrie Verfahren zum stumpfschweissen von duennblechen, insbesondere aus stahl, mittels eines energiereichen laserstrahls und vorrichtungen zu dessen durchfuehrung
DE3828341A1 (de) * 1988-08-20 1989-10-05 Daimler Benz Ag Verfahren zum stumpfen verschweissen von blechteilen aus feinblech im schmelzschweissverfahren
DE4100302C1 (fr) * 1991-01-08 1992-02-06 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg, De
JPH04327388A (ja) * 1991-04-26 1992-11-16 Nippon Steel Corp 金属板のレーザーによる切断・溶接方法ならびに装置
DE4140768C2 (de) * 1991-12-11 1994-08-18 Roland Man Druckmasch Offset-Druckform
US5312025A (en) * 1992-07-20 1994-05-17 Rolf Rottger Method of and device for manufacturing bands of steel

Also Published As

Publication number Publication date
CA2135213A1 (fr) 1995-05-12
DE59407731D1 (de) 1999-03-11
JPH07186358A (ja) 1995-07-25
CA2135213C (fr) 1998-11-24
US5499580A (en) 1996-03-19
DE4338467C1 (de) 1995-02-23
EP0653313A1 (fr) 1995-05-17
JP2738509B2 (ja) 1998-04-08

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