EP1657056A1 - Machine d'impression polychrome et méthode de fonctionnement d'une machine d'impression polychrome - Google Patents

Machine d'impression polychrome et méthode de fonctionnement d'une machine d'impression polychrome Download PDF

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Publication number
EP1657056A1
EP1657056A1 EP05023922A EP05023922A EP1657056A1 EP 1657056 A1 EP1657056 A1 EP 1657056A1 EP 05023922 A EP05023922 A EP 05023922A EP 05023922 A EP05023922 A EP 05023922A EP 1657056 A1 EP1657056 A1 EP 1657056A1
Authority
EP
European Patent Office
Prior art keywords
coating
guiding cylinder
sheet guiding
printing machine
color printing
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.)
Ceased
Application number
EP05023922A
Other languages
German (de)
English (en)
Inventor
Bernhard Graziel
Frank Reusswig
Frank Seidel
Christian Steurer
Udo Trillig
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 EP1657056A1 publication Critical patent/EP1657056A1/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/10—Combinations of transfer drums and grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F22/00—Means preventing smudging of machine parts or printed articles

Definitions

  • the invention relates to multi-color printing machine with at least one sheet guiding cylinder.
  • the invention further relates to a method for operating a multi-color printing machine with at least one sheet guiding cylinder.
  • a multi-color printing machine is described with a sheet guiding cylinder.
  • the sheet guiding cylinder has a drum cap detachably arranged on the base body, which carries on the mantle surface a coating which repels the paint and varnish and which is adhesively fixed on the flexible mantle surface of the drum cap.
  • This coating can be formed structured, for example, with randomly distributed, pointed cone-shaped elevations and end profile treads arranged.
  • the color and paint repellent character of the structured surface of the coating can be improved by a sealing layer or by the paint and paint repellent particles.
  • the invention has for its object to provide a multi-color printing machine or a method for operating a multi-color printing machine, which prevents damage to the surface of the printing sheet or a paint buildup on the sheet guiding cylinder during the printing process.
  • the multi-color printing machine has a coating device for applying a paint-repellent coating on the surface of the sheet guiding cylinder.
  • the object is further achieved by a method for operating a multi-color printing machine, in which according to the invention a paint-repellent agent is applied to the surface of the sheet guiding cylinder during the printing process by means of a coating device.
  • Such a multi-color printing machine has the advantage that damage to the painted surface of the printed sheet is avoided or a paint buildup on the sheet guiding cylinder can be prevented.
  • the coating can be renewed continuously or intermittently during the printing operation. This is particularly advantageous because paint repellent Coatings have a limited creep strength.
  • the coating device has a spraying device or at least one applicator roller.
  • a spraying device or at least one applicator roller In this way, an effective coating of the sheet guiding cylinder can take place, wherein the desired layer thickness of the applied coating can be adjusted in a targeted manner by means of such coating devices.
  • a cleaning device for removing layer residues or dirt from the surface of the sheet guiding cylinder is arranged on the sheet guiding cylinder before the coating device in the direction of rotation. The subsequent coating can thereby be made more uniform.
  • the cleaning device serves to prepare the surface of the sheet guiding cylinder which forms the coating base.
  • a further advantageous embodiment of a multicolor printing machine has on the sheet guiding cylinder after the coating device in the direction of rotation to a conditioning device, which serves for drying and / or polymerization and / or for baking the applied by means of the coating device coating.
  • a conditioning device which serves for drying and / or polymerization and / or for baking the applied by means of the coating device coating.
  • the coating device and, if present, the cleaning device and, if present, the conditioning device are arranged above the sheet guiding cylinder when the sheet is guided below the sheet guiding cylinder, or vice versa. This makes it possible to perform the coating of the sheet guiding cylinder undisturbed by the sheet guide.
  • the coating device operates permanently or cyclically, preferably in the machine cycle.
  • a permanent operation it is ensured that the paint-repellent coating is constantly renewed and so is an optimal paint-repellent surface of the sheet guiding cylinder available.
  • the coating can be done accordingly the wear of these are renewed, which leads to a more cost effective operation.
  • sensors can be arranged on the lateral surface of the sheet guiding cylinder, which measure the state of the paint-repellent coating and compare with nominal values.
  • the coating device can be controlled, so that only applying the paint-repellent coating on the surface of the sheet guiding cylinder takes place when the coating actually no longer has the desired properties, for example no longer the desired layer thickness and / or area coverage.
  • the method according to the invention for operating a multicolor printing machine can be carried out particularly advantageously if the application of the paint-repellent agent takes place by spraying or by means of at least one application roller. A the conditions of the respective sheet guiding cylinder corresponding dosage of the paint repellent agent is thereby possible.
  • An optimum stability of the paint-repellent agent is achieved in that the coating formed on the surface of the sheet guiding cylinder has a layer thickness of one micron to one millimeter.
  • a multi-color sheet-fed rotary printing press is shown in a section, which has at least two printing units for multi-color printing or alternatively to one or more printing units and coating units.
  • Each printing unit has a printing cylinder 1, which are associated with an unillustrated blanket cylinder and this plate cylinder in each case.
  • a sheet guiding cylinder 2 is arranged in each case, which is designed as a transferer or solid cylinder or delivery drum or has half shells. These shells can also be perforated.
  • the sheet is guided underneath the sheet guiding cylinder 2 and fixed by a pneumatic sheet guiding box 4 on the sheet guiding cylinder 2.
  • the directions of rotation of the printing cylinder 1 and the sheet guiding cylinder 2 are shown by arrows 6, 7.
  • a coating device 9 is arranged, by means of which a paint-repellent coating is applied to the surface 11 of the sheet guiding cylinder 2 during the printing process.
  • the coating device 9 is formed as a spraying device which sprays the paint repellent agent, for example as an aerosol, on the surface 11 of the sheet guiding cylinder 2.
  • the coating device can also be designed as an application roller or a plurality of application rollers, by means of which the coating of the surface 11 of the sheet guiding cylinder 2 takes place.
  • the paint repellents suitable for coating the surface 11 of a sheet guiding cylinder paint are listed in the publication DE 201 07182 U1 and incorporated by reference in the present specification.
  • a cleaning device 13 In the direction of rotation in front of the coating device 9, a cleaning device 13 is arranged, can be removed by the remains of the layer of the paint-repellent material or contaminants.
  • the cleaning device 13 is formed in the embodiment shown in the figure as a cleaning cylinder.
  • a cleaning device can also be arranged after the coating device 9.
  • paint residues the so-called paint buildup
  • a conditioning device 15 is also arranged in the embodiment shown in the figure in the direction of rotation after the coating device 9.
  • the conditioning device 15 for example, a heater or a radiator, which emits electromagnetic radiation in the UV wavelength range.
  • a cleaning device is provided after the coating device, it is preferably arranged in the direction of rotation in front of the conditioning device 15.
  • the coating device can be designed in a preferred embodiment so that it works permanently or cyclically, preferably in the machine cycle.
  • the application of the lacquer-repellent agent preferably takes place in such a way that the coating forming on the surface 11 of the sheet guiding cylinder 2 has a layer thickness of one micron to one millimeter.
  • the multi-color printing machine according to the invention and the method according to the invention for operating a multi-color printing machine are particularly suitable for the perfecting operation with coating application after the turn.

Landscapes

  • Coating Apparatus (AREA)
  • Printing Methods (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
EP05023922A 2004-11-16 2005-11-03 Machine d'impression polychrome et méthode de fonctionnement d'une machine d'impression polychrome Ceased EP1657056A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200410055315 DE102004055315A1 (de) 2004-11-16 2004-11-16 Mehrfarbendruckmaschine und Verfahren zum Betreiben einer Mehrfarbendruckmaschine

Publications (1)

Publication Number Publication Date
EP1657056A1 true EP1657056A1 (fr) 2006-05-17

Family

ID=35686586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05023922A Ceased EP1657056A1 (fr) 2004-11-16 2005-11-03 Machine d'impression polychrome et méthode de fonctionnement d'une machine d'impression polychrome

Country Status (3)

Country Link
EP (1) EP1657056A1 (fr)
JP (1) JP2006142821A (fr)
DE (1) DE102004055315A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107571609A (zh) * 2017-09-15 2018-01-12 红岛实业（英德）有限公司 一种多色辊涂板材生产线和生产多色辊涂板材的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688784A (en) * 1984-06-16 1987-08-25 Heidelberger Druckmaschinen Ag Covering for sheet-supporting cylinders and drums in rotary offset printing presses
DE29623064U1 (de) * 1996-06-08 1997-10-02 Kba-Planeta Ag, 01445 Radebeul Bogenrotationsdruckmaschine
DE19716425A1 (de) * 1997-04-18 1998-11-05 Kba Planeta Ag Einrichtung zum Feuchten
DE20107182U1 (de) 2001-04-26 2001-06-28 Man Roland Druckmaschinen Ag, 63069 Offenbach Bogenführungszylinder in einer Mehrfarben-Druckmaschine
EP1375142A2 (fr) * 2002-06-21 2004-01-02 Koenig & Bauer Aktiengesellschaft Machine d'impression rotative avec une unité de couchage et procédure de revêtement d'un cylindre de transfert de feuilles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10241671A1 (de) * 2002-09-09 2004-03-18 Heidelberger Druckmaschinen Ag Bedruckstoffkontaktierendes Element mit farbabweisender Beschichtung und Verfahren zur Beschichtung eines bedruckstoffkontaktierenden Elements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688784A (en) * 1984-06-16 1987-08-25 Heidelberger Druckmaschinen Ag Covering for sheet-supporting cylinders and drums in rotary offset printing presses
DE29623064U1 (de) * 1996-06-08 1997-10-02 Kba-Planeta Ag, 01445 Radebeul Bogenrotationsdruckmaschine
DE19716425A1 (de) * 1997-04-18 1998-11-05 Kba Planeta Ag Einrichtung zum Feuchten
DE20107182U1 (de) 2001-04-26 2001-06-28 Man Roland Druckmaschinen Ag, 63069 Offenbach Bogenführungszylinder in einer Mehrfarben-Druckmaschine
EP1375142A2 (fr) * 2002-06-21 2004-01-02 Koenig & Bauer Aktiengesellschaft Machine d'impression rotative avec une unité de couchage et procédure de revêtement d'un cylindre de transfert de feuilles

Also Published As

Publication number Publication date
JP2006142821A (ja) 2006-06-08
DE102004055315A1 (de) 2006-05-18

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