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EP0567055A1 - Vorrichtung zum Erzeugen eines druckenden Musters auf einer Druckform-Hülse - Google Patents

Vorrichtung zum Erzeugen eines druckenden Musters auf einer Druckform-Hülse Download PDF

Info

Publication number
EP0567055A1
EP0567055A1 EP93106354A EP93106354A EP0567055A1 EP 0567055 A1 EP0567055 A1 EP 0567055A1 EP 93106354 A EP93106354 A EP 93106354A EP 93106354 A EP93106354 A EP 93106354A EP 0567055 A1 EP0567055 A1 EP 0567055A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
cylinder
printing
magnetic
producing
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Withdrawn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
EP93106354A
Other languages
German (de)
English (en)
French (fr)
Inventor
Roland Reffert
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.)
Koenig and Bauer AG
Original Assignee
Albert Frankenthal AG
Koenig and Bauer Albert 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 Albert Frankenthal AG, Koenig and Bauer Albert AG filed Critical Albert Frankenthal AG
Publication of EP0567055A1 publication Critical patent/EP0567055A1/de
Withdrawn legal-status Critical Current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
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1075—Mechanical aspects of on-press plate preparation

Definitions

  • the invention relates to a device for generating a pattern to be printed according to the preamble of patent claim 1.
  • Graver tools, laser beams or electron beams are used to create the pattern to be printed on an endless, circular printing form (gravure printing form).
  • the printing form - e.g. B. in the form of a removable jacket - is pushed onto a cylinder.
  • the cylinder rotates during the creation of a pattern on the printing form. If the format size and thus the circumference of the casing is changed beyond a certain permissible gradation, the inner diameter of the casing must also be changed. This means the use of a new cylinder with a new, adapted diameter.
  • the invention has for its object to provide a device for generating patterns on a surface of a metallic endless support for patterns to be printed, with which it is possible to - over a large format range. H. in the case of lengthening and shortening the outer or inner circumference of the endless carrier - without having to replace the receiving cylinder.
  • a device 1 for applying patterns to be printed on a lateral surface 7 of a printing sleeve 4 consists of a working head 5 which can be moved horizontally and vertically back and forth on a guide 3 fixed to the frame.
  • the working head 5 has a device 2 for producing cells on the lateral surface of the printing sleeve 4 such as B. a known stylus device or a laser device or an electron beam device or a digital exposure device with which, for. B. up to 30,000 cells per sec.
  • B. a known stylus device or a laser device or an electron beam device or a digital exposure device with which, for. B. up to 30,000 cells per sec.
  • the working head 5 can, however, as mentioned, consist of a digital exposure device 2 for an offset plate printing sleeve.
  • An inner circumferential length of the pressure sleeve 4 is longer than a circumference of a magnet cylinder 8 which is known per se and rotates at a constant circumferential speed.
  • the pressure sleeve 4 consists at least in its inner layer (layer) 6 of a ferro-magnetic material, e.g. B. iron, nickel or alloys.
  • its outer layer 11 can be made of another, also non-ferromagnetic material, e.g. B. the printing ink friendly copper exist.
  • the pressure sleeve 4 is placed on the magnetic cylinder 8.
  • the pressure sleeve 4 can not rest, but is a distance a from the lateral surface 11 of the magnetic cylinder 8 in the room.
  • a tensioning device 12 can be attached to the frame in it. It serves to support the peeling of the printing sleeve 4 from the magnet cylinder 8 after it has passed through the engraving gap between the Working head 5 and the magnetic cylinder 8.
  • the working head 5 can carry an engraving stylus or a laser beam device or an electron beam device used for engraving, as described, for. B. are known by the Hell company.
  • the tightening device 12 can be designed in various ways, with or without contact with an inside 14 of the pressure sleeve 4. It can, for. B., as shown in Fig. 1, have a circular segment-shaped cross section, wherein the curved side is in contact with the inside 14 or not. In order to keep the friction low when touched, a plurality of easily rotatably mounted rollers 16 or over the entire width and longitudinally rotatably mounted rollers or a single roller can be arranged on the circular part 17.
  • compressed air-fed nozzles can also be provided, which blow compressed air between the free part of the pressure sleeve 4 and the magnetic cylinder 8.
  • a taut device 15 which is fixed to the frame and acts by means of magnetic force can also be provided. It is expediently arranged outside the intermediate space 10 and acts on the pressure sleeve 4 via its outer side 18.
  • the device 15 has in the direction of the pressure sleeve 4 a concave magnetic surface 19, that is to say a maximum curvature of the free part of the pressure sleeve 4.
  • the magnetic surface 19 can have a large number of strong permanent magnet bars, the poles of which terminate with the surface of the magnetic surface 19. Here - as seen across the width - the north and south poles are arranged next to each other at a distance.
  • Electromagnets with legs and yokes can also be provided.
  • the ferro-magnetic part of the pressure sleeve 4 forms the armature for the magnet, which is located at a short distance from the legs of the electromagnet.
  • the free part of the pressure sleeve 4 is attracted to the magnet without touching it.
  • Another inventive possibility of pulling the pressure sleeve 4 away from the magnetic cylinder 8 is to use a synchronous or asynchronous traveling field motor in the form of an asynchronous sector 21 or linear motor.
  • the inner radius of curvature r of the sector motor 21 is adapted to the outer curvature of the pressure sleeve 4 or else to the radius of curvature of the tensioning device 12.
  • the sector / linear motor 21 is operated by a frequency converter device, e.g. B. a static or dynamic three-phase frequency converter device 22, fed.
  • This frequency converter device 22 generates a three-phase current in z. B. proportional dependence on the machine speed n; fn standing frequency fa, ie the sector motor 21 is a tensile force and a force in contactlessly on the pressure sleeve 14 Generate the direction of rotation of the magnetic cylinder 8. This ensures that the pressure sleeve 4 does not touch the surface of the segmented tensioner 12 or the stator poles 14 of the sector motor 21.
  • a frequency generator 23 converts the magnetic cylinder speed n into a target frequency fn, which is fed to a controller 24 (frequency-target-actual value comparisons, timing elements, amplifiers, etc.).
  • a corresponding electrical manipulated variable is generated by the controller 24, which influences the frequency converter device 22 so that a voltage Ua, for. B. three-phase current, with the desired target frequency fa z. B. (three-phase) winding 25 of the sector motor 21 is supplied.
  • a pull in the direction of rotation of the magnetic cylinder 8 is then exerted on the pressure sleeve 4.
  • a plurality of permanent magnet pole devices 27 are arranged in a known manner (e.g. DE-OS 22 31 452) in an electron magnet device. They generate a strong magnetic field on the entire outer cylinder circumferential surface 26.
  • the magnetic pole devices 27 each consist of a permanent magnet part 28 and magnetizable pole pieces 29, which are arranged next to one another alternately on the cylinder circumferential surface.
  • the invention is not limited to gravure printing.
  • the outer layer of the ferromagnetic sleeve 4 made of offset-compatible aluminum with a light-sensitive layer and can thus be used as an offset "printing plate”.
  • the working head 5, and thus the device 2 for producing cups can be adjusted vertically on a horizontally displaceable slide 13 and can be brought into operative connection with the lateral surface 11.
  • a stylus tool will touch the outer surface, using a non-contact method for producing cells or digital exposure of a light-sensitive layer (offset) of a printing sleeve 4 will work at a preselectable distance from the outer surface 11.
  • the magnetic cylinder 8 rotates during engraving or digital exposure, and so an engraving or exposure track extending in the circumferential direction of the printing sleeve is produced on the lateral surface.
  • the device 2 for generating cells or digital exposure points is adjusted by a step of a preselectable length in the horizontal direction - and thus in the longitudinal direction of the printing sleeve, and the engraving or exposure device process begins anew, etc., etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP93106354A 1992-04-21 1993-04-20 Vorrichtung zum Erzeugen eines druckenden Musters auf einer Druckform-Hülse Withdrawn EP0567055A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4213013A DE4213013C2 (de) 1992-04-21 1992-04-21 Vorrichtung zum Erzeugen eines zu druckenden Musters auf einer Druckform-Hülse
DE4213013 1992-04-21

Publications (1)

Publication Number Publication Date
EP0567055A1 true EP0567055A1 (de) 1993-10-27

Family

ID=6457101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93106354A Withdrawn EP0567055A1 (de) 1992-04-21 1993-04-20 Vorrichtung zum Erzeugen eines druckenden Musters auf einer Druckform-Hülse

Country Status (4)

Country Link
US (1) US5419255A (ja)
EP (1) EP0567055A1 (ja)
JP (1) JPH0671844A (ja)
DE (2) DE4213013C2 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10112761A1 (de) * 2000-04-13 2001-10-18 Heidelberger Druckmasch Ag Verfahren zum Gebrauch einer Druckplatte
EP1155823A3 (en) * 2000-05-17 2006-01-18 Komori Corporation Printing press
US20020189478A1 (en) * 2001-06-14 2002-12-19 Mitsubishi Heavy Industries, Ltd. Offset press
US20020189479A1 (en) * 2001-06-14 2002-12-19 Mitsubishi Heavy Industries, Ltd. Offset press and gapless printing plate
JP2003094599A (ja) * 2001-07-17 2003-04-03 Mitsubishi Heavy Ind Ltd インプリンタ装置
DE20218308U1 (de) 2002-11-20 2003-01-23 Kocher + Beck Gmbh + Co. Rotationsstanztechnik Kg, 72124 Pliezhausen Magnetzylinder
DE102009038308A1 (de) * 2009-08-21 2011-02-24 Siemens Aktiengesellschaft Verfahren zum Betrieb einer Kälteerzeugungseinrichtung zur Kühlung eines Supraleiters sowie hierfür geeignete Kälteerzeugungseinrichtung
CN103192591B (zh) * 2013-04-10 2015-10-21 中国人民银行印制科学技术研究所 磁定向滚筒及印刷机
CN107933065A (zh) * 2017-12-20 2018-04-20 贵州永吉印务股份有限公司 一种金属3d磁性光变印刷装置及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271226A (en) * 1963-08-09 1966-09-06 Eastman Kodak Co Etching apparatus for making a cellulosic printing plate
US4116594A (en) * 1975-12-12 1978-09-26 Magna-Graphics Corporation Embossing apparatus having magnetic roller and flexible embossing plates therefor
EP0098574A2 (en) * 1982-07-06 1984-01-18 Fuji Photo Film Co., Ltd. Radiation image read-out method and apparatus
EP0394871A2 (en) * 1989-04-25 1990-10-31 Oki Electric Industry Co., Ltd. Apparatus for forming an image with a reversible thermosensitive medium
DE3916372A1 (de) * 1989-05-19 1990-11-22 Eduard Hueck Metallwalz Und Pr Verfahren zur uebertragung von praegegravuren auf grossformatige metallene pressplatten oder endlosbaender fuer kunststoffplattenpressen

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136672A (en) * 1961-08-28 1964-06-09 Robert G Prongay Printing plate and method of making the same
CH472290A (de) * 1967-05-23 1969-05-15 Zimmer Johannes Einrichtung zum Bedrucken von flächenförmigem Material
US3721189A (en) * 1971-06-28 1973-03-20 Magna Graphics Corp Magnetic print cylinder
JPS4984720A (ja) * 1972-12-20 1974-08-14
JPS5073702A (ja) * 1973-11-02 1975-06-18
DE2742002A1 (de) * 1977-09-17 1979-03-29 Ludwig Zboron Tiefdruckzylinder
DE3008176C2 (de) * 1979-03-07 1986-02-20 Crosfield Electronics Ltd., London Gravieren von Druckzylindern
DE2933686A1 (de) * 1979-08-20 1981-03-26 Merck Patent Gmbh, 64293 Darmstadt Aetzmittel und verfahren zur korrektur verchromter tiefdruckzylinder
DE8122637U1 (de) * 1981-08-01 1982-07-08 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach "Rollenrotationsdruckmaschine mit einem Druckbilder tragenden Druckband"
JPS60138551A (ja) * 1983-12-26 1985-07-23 Fuji Photo Film Co Ltd 製版方法
EP0237574B1 (en) * 1985-08-24 1991-08-21 KITAMURA, Atsushi Cylindrical photosensitive resin structure and method of preparing cylindrical printing plate
DK600285D0 (da) * 1985-12-20 1985-12-20 Jens Erik Sattrup Fremgangsmaade til fremstilling af en dybtrykcylinder
DE3633758A1 (de) * 1986-10-03 1988-04-07 Man Technologie Gmbh Druckmaschine
DE4039105C2 (de) * 1990-12-07 1994-12-08 Roland Man Druckmasch Vorrichtung zur bildmäßigen Beschreibung einer Druckform
US5247884A (en) * 1991-12-10 1993-09-28 K. Walter Service Corporation Methods and apparatus for forming printing cylinders, and the resulting ballard shells and printing rolls

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271226A (en) * 1963-08-09 1966-09-06 Eastman Kodak Co Etching apparatus for making a cellulosic printing plate
US4116594A (en) * 1975-12-12 1978-09-26 Magna-Graphics Corporation Embossing apparatus having magnetic roller and flexible embossing plates therefor
EP0098574A2 (en) * 1982-07-06 1984-01-18 Fuji Photo Film Co., Ltd. Radiation image read-out method and apparatus
EP0394871A2 (en) * 1989-04-25 1990-10-31 Oki Electric Industry Co., Ltd. Apparatus for forming an image with a reversible thermosensitive medium
DE3916372A1 (de) * 1989-05-19 1990-11-22 Eduard Hueck Metallwalz Und Pr Verfahren zur uebertragung von praegegravuren auf grossformatige metallene pressplatten oder endlosbaender fuer kunststoffplattenpressen

Also Published As

Publication number Publication date
DE4213013C2 (de) 1995-11-16
DE9218056U1 (de) 1993-06-03
JPH0671844A (ja) 1994-03-15
US5419255A (en) 1995-05-30
DE4213013A1 (de) 1993-10-28

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