EP1150842B1 - Gravierorgan - Google Patents

Gravierorgan Download PDF

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Publication number
EP1150842B1
EP1150842B1 EP99963198A EP99963198A EP1150842B1 EP 1150842 B1 EP1150842 B1 EP 1150842B1 EP 99963198 A EP99963198 A EP 99963198A EP 99963198 A EP99963198 A EP 99963198A EP 1150842 B1 EP1150842 B1 EP 1150842B1
Authority
EP
European Patent Office
Prior art keywords
engraving
burin
shaft
component according
angle
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
EP99963198A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1150842A1 (de
Inventor
Dieter Carstens
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.)
Hell Gravure Systems GmbH and Co KG
Original Assignee
Hell Gravure Systems 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 Hell Gravure Systems GmbH and Co KG filed Critical Hell Gravure Systems GmbH and Co KG
Publication of EP1150842A1 publication Critical patent/EP1150842A1/de
Application granted granted Critical
Publication of EP1150842B1 publication Critical patent/EP1150842B1/de
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
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • B41C1/045—Mechanical engraving heads
    • 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
    • Y10T82/00—Turning
    • Y10T82/12—Radially moving rotating tool inside bore
    • Y10T82/125—Tool simultaneously moving axially
    • 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
    • Y10T82/00—Turning
    • Y10T82/12—Radially moving rotating tool inside bore
    • Y10T82/125—Tool simultaneously moving axially
    • Y10T82/128—Pivoted to tool-carrier

Definitions

  • the invention relates to the field of electronic reproduction technology and relates to an engraving element of an electronic engraving machine for engraving of printing cylinders for gravure printing.
  • an engraving organ moves with a Engraving stylus as a cutting tool in the axial direction on a rotating Pressure cylinder along.
  • the engraving stylus controlled by an engraving control signal Engraces wells arranged in a gravure grid in the lateral surface of the printing cylinder.
  • the engraving control signal is superimposed a periodic raster signal with image signal values, which the to reproduce tonal values between "black” and "white”.
  • the screen signal causes a vibrating lifting movement of Engierstichels in the direction of the printing cylinder, wherein the image signal values the engraving depths according to the tonal values to be reproduced determine the wells.
  • the electromagnetic drive element consists of a stationary applied to the engraving control signal Electromagnet, in whose air gap the armature of a rotating system moves.
  • the turning system consists of a shaft, the anchor, a bearing for the Wave and from a damping device. A wave end goes into a space festival clamped, resilient torsion bar over, while the other shaft end carries a lever to which the engraving stylus is attached.
  • the engraving stylus is often a prismatic cut diamond in practice, which is fastened with its shaft to the lever of the engraving element.
  • the engraving stylus consists essentially of a front with respect to the engraving Span Structure and facing away from the chip surface inclined rear free area.
  • the cutting lines between the cutting surface and the free surface form the cutting tip of the engraving stylus.
  • the angle between the oblique extending free surface and the tangent plane at the point of contact of cutting tip and lateral surface of the impression cylinder is referred to as clearance angle.
  • the clearance angle of the engraving stylus limits the steepness with which the engraving stylus can penetrate into the printing cylinder, without the free space on the wall the cup sets up.
  • different engraving patterns are in engraving line direction upturned wells with a steep wall and elongated Cups engraved with a flat wall.
  • When engraving of compressed Cups may disadvantageously occur that the free surface of Engierstichels placed on the wall of the wells and interrupted the cutting process becomes. The result is that required for tonwertstandardized engraving Engraving depths not reached and wells with an undesirable asymmetric Shape to be engraved.
  • the invention is based on the object, an engraving an electronic Engraving machine for engraving of printing plates to improve such that in particular Even with compressed wells a tone-correct engraving is achieved.
  • FIG. 1 shows a perspective view of the structure of an engraving organ, this is basically a drive system, in the example shown an electromagnetic Drive system, and having a rotation system.
  • the electromagnetic drive element consists of a stationary electromagnet (1) with two opposing U-shaped laminated cores (2) and two air gaps (3) lying between the legs of the laminated cores (2).
  • a coil (5) In the recesses (4) of the laminated cores (2) of the electromagnet (1) is located a coil (5), of which only one coil side is shown.
  • the coil (5) is from an engraving control signal flows through.
  • the turning system consists of a shaft (6), one attached to the shaft (6) Anchor (7), as well as a damping device (8) and a bearing (9) for the Wave (6).
  • the armature (7) is movable in the air gaps (3) of the electromagnet (1).
  • a shaft end merges into a resilient torsion bar (10), which in a stationary support (11, 12) is clamped.
  • the other shaft end (13) carries a lever (14) on which a engraving stylus (15), for example in the form of a diamond is appropriate.
  • the damping device (8) and the bearing (9) are between the armature (7) and the lever (14) with the engraving stylus (15).
  • the drive system for the engraving stylus (15) can also be used as a solid-state actuator element be formed, for example, from a piezoelectric or a magnetostrictive material.
  • Fig. 2 shows a cross section through the engraving stylus and a printing cylinder. Shown is a radial partial cross section through a pressure cylinder (16) in the area its lateral surface (17). Shown is also the as prismatic cut Diamond trained engraving stylus (15) in cross section.
  • the engraving stylus (15) consists essentially of a shaft (21), a respect the engraving direction (19) front rake face (22) and one of the Chip surface (22) facing away from the free surface (23).
  • the cutting lines between the Chip surface (22) and the free surface (23) form the cutting tip (24) of the Engraving stylus (15).
  • the free surface (23) closes with a tangential surface in the Point of contact of cutting tip (24) and lateral surface (17) of the printing cylinder (16) the clearance angle ( ⁇ ).
  • the engraving member is so to the lateral surface (17) of the printing cylinder (16) aligned such that the engraving stylus (15) for engraving the wells (20) a marked by a double arrow (25) lifting movement in the direction of the pressure cylinder (16) and in the opposite direction.
  • the clearance angle ( ⁇ ) of the engraving stylus (15) is increased according to the invention, that the engraving stylus (15) in the engraving direction (19) with respect to a respective radially to the impression cylinder (16), i. perpendicular to the lateral surface (17), extending Reference line (26) is arranged inclined.
  • the angle of inclination ( ⁇ ) that the includes inclined engraving stylus (15) with the reference line (26) is in expedient manner 1 ° to 5 °, preferably 3 °, chosen.
  • the tilting of the engraving stylus (15) with respect to the lateral surface (17) by a corresponding tilted attachment, for example, by gluing, the engraving stylus (15) in the lever (14) of the Engraving organ achieved.
  • the location-accurate insertion of Engierstichels (15) in the Lever (14) is, for example, by means of a mounting device according to the DE-PS 22 13 768 performed.
  • the tilting of the engraving stylus (15) by constructive inclination of the longitudinal axis of the rotary system (6, 7, 8, 9) of the Engraving member with respect to a on the lateral surface (17) of the printing cylinder (16) applied reference tangent reached.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Actuator (AREA)
EP99963198A 1999-01-25 1999-11-04 Gravierorgan Expired - Lifetime EP1150842B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19902884A DE19902884B4 (de) 1999-01-25 1999-01-25 Gravierorgan
DE19902884 1999-01-25
PCT/DE1999/003521 WO2000043203A1 (de) 1999-01-25 1999-11-04 Gravierorgan

Publications (2)

Publication Number Publication Date
EP1150842A1 EP1150842A1 (de) 2001-11-07
EP1150842B1 true EP1150842B1 (de) 2003-05-21

Family

ID=7895336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99963198A Expired - Lifetime EP1150842B1 (de) 1999-01-25 1999-11-04 Gravierorgan

Country Status (6)

Country Link
US (1) US6736035B1 (ja)
EP (1) EP1150842B1 (ja)
JP (1) JP3605364B2 (ja)
CN (1) CN1109602C (ja)
DE (2) DE19902884B4 (ja)
WO (1) WO2000043203A1 (ja)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7267856B2 (en) * 2002-10-07 2007-09-11 Pactiv Corporation Ultrasonic end stops on zipper closure bags and methods for making same
US20070107289A1 (en) * 2005-11-16 2007-05-17 Shimer Gary W Picture frame system
DE102012009532A1 (de) * 2012-05-04 2013-11-07 Hell Gravure Systems Gmbh & Co. Kg Gravierorgan zur Gravur von Druckformen
JP6582282B2 (ja) * 2014-10-30 2019-10-02 株式会社ワールドベンチャー 画像彫刻装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2213768C3 (de) * 1972-03-22 1979-03-08 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren und Vorrichtung zum ortsgenauen Einsetzen eines Schneidorganes zur Herstellung eines Gravierstichels für elektronische Druckform-Graviermaschinen
DE2356729A1 (de) * 1972-11-24 1974-05-30 Raymond Jean Louis Mehrzweck-graviermaschine
DE2365637A1 (de) * 1973-07-16 1975-10-30 Hell Rudolf Dr Ing Gmbh Daempfungsanordnung fuer ein aufzeichnungssystem, insbesondere fuer ein graviersystem einer druckformgraviermaschine
CH579985A5 (ja) * 1973-07-16 1976-09-30 Hell Rudolf Dr Ing Gmbh
US5440398A (en) * 1993-02-25 1995-08-08 Ohio Electronic Engravers, Inc. Error detection apparatus and method for use with engravers
US5867280A (en) * 1993-02-25 1999-02-02 Ohio Electronic Engravers, Inc. Engraver with automatic tool changer
US5831746A (en) * 1993-02-25 1998-11-03 Ohio Electronic Engravers, Inc. Engraved area volume measurement system and method using pixel data
US5454306A (en) * 1993-07-12 1995-10-03 Ohio Electric Engravers, Inc. Engraving head platform
US5426588A (en) 1994-02-25 1995-06-20 Eastman Kodak Company Method for engraving a gravure cylinder
ES2102094T3 (es) * 1994-04-26 1997-07-16 Schablonentechnik Kufstein Ag Procedimiento y dispositivo para la fabricacion de una plantilla de serigrafia.

Also Published As

Publication number Publication date
JP2002535165A (ja) 2002-10-22
DE59905687D1 (de) 2003-06-26
US6736035B1 (en) 2004-05-18
CN1333718A (zh) 2002-01-30
WO2000043203A1 (de) 2000-07-27
DE19902884A1 (de) 2000-07-27
JP3605364B2 (ja) 2004-12-22
DE19902884B4 (de) 2006-07-13
CN1109602C (zh) 2003-05-28
EP1150842A1 (de) 2001-11-07

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