EP0151397B1 - Vorrichtung zum Verschliessen des Spaltes zwischen den Enden einer auf einen Formzylinder aufgespannten Tiefdruckplatte - Google Patents

Vorrichtung zum Verschliessen des Spaltes zwischen den Enden einer auf einen Formzylinder aufgespannten Tiefdruckplatte Download PDF

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Publication number
EP0151397B1
EP0151397B1 EP85100234A EP85100234A EP0151397B1 EP 0151397 B1 EP0151397 B1 EP 0151397B1 EP 85100234 A EP85100234 A EP 85100234A EP 85100234 A EP85100234 A EP 85100234A EP 0151397 B1 EP0151397 B1 EP 0151397B1
Authority
EP
European Patent Office
Prior art keywords
gap
centering
pair
plate
forme cylinder
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
Application number
EP85100234A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0151397A3 (en
EP0151397A2 (de
Inventor
Gerhard Bleckmann
John Dr. Lynch
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of EP0151397A2 publication Critical patent/EP0151397A2/de
Publication of EP0151397A3 publication Critical patent/EP0151397A3/de
Application granted granted Critical
Publication of EP0151397B1 publication Critical patent/EP0151397B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1293—Devices for filling up the cylinder gap; Devices for removing the filler
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/924—Deformation, material removal, or molding for manufacture of seal

Definitions

  • the invention relates to a device for closing the gap between the ends of an intaglio printing plate clamped on a forme cylinder according to the preamble of patent claim 1.
  • a plate was covered by a pressure piece (patent applications DE-A-2545618 and DE-A-33 08 807). In the area of the plate ends, this creates a continuous, uniform surface without elevations and depressions, but an exact continuation of the surface of the forme cylinder is not guaranteed. It depends on the exact positioning of the plate in relation to the gap.
  • the forme cylinder 1 of a sheet-fed or rotary intaglio printing machine is provided with a groove 2 which runs along the forme cylinder axis and widens from the cylinder surface to the cylinder center, into which the intaglio printing plate 3 clamped on the forme cylinder is folded with both End 4 is hooked at an acute angle.
  • a plate 7 is placed over the two end sections 6 of the intaglio printing plate, which is elastically attached to the underside of a box-shaped retaining strip 8 by means of rubber or spring washers 30 and is elastically bendable or shaped according to the contour of the cylinder surface .
  • the retaining strip 8 is fastened to the movable cylinder housing 9 of a pneumatic working cylinder 10, the piston of which - connected to a guide rail 11 - is fixed.
  • the working cylinder is accordingly a guide and, at the same time, a drive element for the plate 7 to be moved onto the form cylinder 1 by means of the retaining strip.
  • the holder for the plate which is designed in this way, is present opposite both end faces of the form cylinder and is shown in the drawing only for one side.
  • the guide rail 11 is pivotably mounted on the axis of the forme cylinder or on an axis 12 coaxial with this and can be fixed by means of a clamp 13.
  • the axis is held in a U-shaped leg 14 which is fixed by means of a locking screw 15 on the stub shaft 16 of the forme cylinder 1.
  • a centering device 17 which consists of a pair of centering rails 19, which is also pivotably mounted on the axis 12 and can be fixed by means of a clamp 18, with recesses 20 running radially to the axis and a centering bar 21 which is accommodated therein without play and extends over the entire length of the forme cylinder, which is wedge-shaped towards the gap 5.
  • the centering bar As can be seen in FIG. 2, after the centering bar has been lowered into the gap 5 by hand, it is pressed into it by its own weight or with the aid of springs 22 supported on the two centering rails.
  • the pair of centering rails is pulled onto the gap center radius, whereby it is of course assumed that the recesses 20 serving as guides are arranged exactly on the center line of the rail, and then fixed by means of the clamps 18 by the set screws 23.
  • the pair of centering rails is thus an alignment aid for the pair of guide rails 11 arranged immediately next to it and including it. This is now pivoted into the same position as that of the pair of centering rails (FIG. 3) and is fixed with it by means of congruent holes 24 by means of pins 25, whereby the pair of guide rails in the aligned position is brought.
  • the guide rails are then fixed and the centering rails after removing the pins 25 and Relaxing the clamps 18, with the centering bar 21 being pivoted back again (FIG. 4), so that the plate 7, which is now precisely positioned, can be lowered onto the gap 5 of the forme cylinder 1 by actuating the working cylinder 10.
  • the pressure of the plate on the end sections 6 of the intaglio printing plate 3 can be adjusted such that on the one hand it is sufficient to seal the gap 5 against the pressure of the filling compound in the gap cavity, and on the other hand deformations of the pressure surfaces are avoided will.
  • the plate is deformed elastically, its curvature corresponding to that of the forme cylinder surface.
  • each guide rail is provided with an additional guide 32 which extends radially with respect to the forme cylinder axis, into which the centering bar can be inserted via a lateral outlet 33 and can be removed therefrom before the plate 7 is lowered.
  • the centering device consists of a radiation source which is aligned with the forme cylinder surface and generates a bundled light beam 34, for example from laser optics or a shadow mask 35, over which a light source 36 is arranged, the antelle of the centering bar 21 a carrier connecting the centering rails 19 or above the plate 7 is attached to the retaining bar 8.
  • a radiation source which is aligned with the forme cylinder surface and generates a bundled light beam 34, for example from laser optics or a shadow mask 35, over which a light source 36 is arranged, the antelle of the centering bar 21 a carrier connecting the centering rails 19 or above the plate 7 is attached to the retaining bar 8.
  • the latter arrangement requires that the plate 7 is transparent. This has the additional advantage that the filling process of the gap 5 and the tightness between the plate and its support surfaces can be observed.
  • a radiation source 28 for example a fluorescent tube, is pivotably held on the holding strip 8 for the plate 7 by means of a hinged holder 29. After the filling process, the radiation source extending over the entire length of the gap 5 is pivoted over the transparent plate and is thus effective towards the gap.
  • the surface which has arisen in the manner described above and connects the two end sections 6 of the gravure printing plate 3 can be used without reworking, so that the forme cylinder 1 can be removed for use in the printing press after the holder of the plate 7 has been pivoted back.

Landscapes

  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Printing Plates And Materials Therefor (AREA)
EP85100234A 1984-01-18 1985-01-11 Vorrichtung zum Verschliessen des Spaltes zwischen den Enden einer auf einen Formzylinder aufgespannten Tiefdruckplatte Expired EP0151397B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843401501 DE3401501A1 (de) 1984-01-18 1984-01-18 Vorrichtung zum verschliessen des spaltes zwischen den enden einer auf einen formzylinder aufgespannten tiefdruckplatte
DE3401501 1984-01-18

Publications (3)

Publication Number Publication Date
EP0151397A2 EP0151397A2 (de) 1985-08-14
EP0151397A3 EP0151397A3 (en) 1987-08-19
EP0151397B1 true EP0151397B1 (de) 1989-10-11

Family

ID=6225198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85100234A Expired EP0151397B1 (de) 1984-01-18 1985-01-11 Vorrichtung zum Verschliessen des Spaltes zwischen den Enden einer auf einen Formzylinder aufgespannten Tiefdruckplatte

Country Status (4)

Country Link
US (1) US4569286A (enrdf_load_stackoverflow)
EP (1) EP0151397B1 (enrdf_load_stackoverflow)
JP (1) JPS60232959A (enrdf_load_stackoverflow)
DE (2) DE3401501A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8703987U1 (de) * 1987-03-17 1987-06-11 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung an einer Rotationstiefdruckmaschine zur spanenden Nachbehandlung
DE3727115A1 (de) * 1987-08-14 1989-02-23 Basf Ag Vorrichtung zum verschliessen des spaltes zwischen den enden einer auf einen formzylinder aufgespannten tiefdruckplatte
US4825558A (en) * 1987-09-14 1989-05-02 Adflex Corporation Pin bar for mounting flexographic printing plates
US5410961A (en) 1992-12-30 1995-05-02 Fit Group, Inc. Fountain assembly
US5701823A (en) * 1997-01-27 1997-12-30 Morris; Jerry L. Self aligning tool for registering rotary printing plates and method of registering plates
US6729234B2 (en) 2002-04-05 2004-05-04 Agfa Corporation Actuation system in an imaging system
US6772688B2 (en) 2002-04-05 2004-08-10 Agfa Corporation Imaging system with automated plate locating mechanism and method for loading printing plate

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB367436A (en) * 1930-11-20 1932-02-22 Leslie Thomas Albert Robinson Improvements in or relating to printing cylinders
US3353481A (en) * 1962-06-08 1967-11-21 Potter Instrument Co Inc High speed printer drum with print plate mounting means
DE1273377B (de) * 1963-10-26 1968-07-18 Haegglund & Soener Ab Einrichtung zur drehbaren Befestigung eines Waffenturms
US3358598A (en) * 1966-01-27 1967-12-19 Middleton John O'brien Method of mounting plates to printing machine cylinders
US4031838A (en) * 1970-11-14 1977-06-28 Blohm & Voss Ag Modular interchangeable weapons sub-assembly system for warships
DE2545618A1 (de) * 1975-10-11 1977-04-21 Frankenthal Ag Albert Formzylinder fuer tiefdruck mit einer magnetisch aufgespannten wickelplatte
US4343011A (en) * 1980-03-17 1982-08-03 Thomas M. Murray Facsimile apparatus
US4515378A (en) * 1984-05-17 1985-05-07 Dixon Industries Corporation Double cup sealing member for double action piston pump

Also Published As

Publication number Publication date
JPS60232959A (ja) 1985-11-19
DE3401501A1 (de) 1985-07-25
JPH0442987B2 (enrdf_load_stackoverflow) 1992-07-15
EP0151397A3 (en) 1987-08-19
DE3573560D1 (en) 1989-11-16
US4569286A (en) 1986-02-11
EP0151397A2 (de) 1985-08-14

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