EP0250732A1 - Procédé de fabrication de surfaces d'arrêt structurées sur des pinces de feuilles ou sur des pièces de repos de pinces de feuilles - Google Patents

Procédé de fabrication de surfaces d'arrêt structurées sur des pinces de feuilles ou sur des pièces de repos de pinces de feuilles Download PDF

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Publication number
EP0250732A1
EP0250732A1 EP87105103A EP87105103A EP0250732A1 EP 0250732 A1 EP0250732 A1 EP 0250732A1 EP 87105103 A EP87105103 A EP 87105103A EP 87105103 A EP87105103 A EP 87105103A EP 0250732 A1 EP0250732 A1 EP 0250732A1
Authority
EP
European Patent Office
Prior art keywords
sheet
gripper
structured
hard
production
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
EP87105103A
Other languages
German (de)
English (en)
Inventor
Claus Simeth
Werner Dr. Soldergeld
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 EP0250732A1 publication Critical patent/EP0250732A1/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
    • B41F21/104—Gripper details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/12—Stencil printing; Silk-screen printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/26—Printing on other surfaces than ordinary paper
    • B41M1/28—Printing on other surfaces than ordinary paper on metals
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/02—Local etching

Definitions

  • the invention relates to a method for producing structured holding surfaces on sheet grippers, sheet supports or the like.
  • Gripper devices according to the preamble of the first claim.
  • the quality of the print largely depends on the ability of the successive gripper systems to hold the sheet securely, i.e. to prevent slipping and to keep the original register position while running through the machine.
  • the use of coated papers and strict colors places great demands on the devices that ensure registration.
  • the disadvantage here is that the dot structure is produced by photochemical means, ie by etching operations in connection with previous photographic operations.
  • a structure produced in this way is relatively closed with approximately 300 to 400 points per square centimeter. Such a surface results in insufficient positive locking.
  • the result is that despite a large number of load-bearing tips, their effectiveness when pressed onto the printing material surface is considerably impaired, which leads to a reduction in the holding forces between the sheet gripper and the associated sheet gripper pad.
  • the object of the invention is to provide a method of the type mentioned for producing structured holding surfaces with a smooth, shaping surface.
  • Figure 1 shows a sheet gripping device for gripping and forwarding sheets 6.
  • a sheet gripper 2 is attached, preferably with an interchangeable gripper tip 3, which is hard according to the invention structured holding surface 4 is provided.
  • a sheet gripper support 5 is provided with a likewise hard holding surface 4 structured according to the invention.
  • one of the holding surfaces of gripper tip 3 or arch gripper support 5 can also consist of smooth, hard or elastic material, for example plastic.
  • the sheet 6 lies between the gripper finger 3 and the sheet gripper pad 5.
  • Figure 2 shows the embodiment of an oblique-angled grid of the holding surface 4 in a plan view.
  • the grid can be arranged in any way, e.g.
  • the holding lines formed from profiles 7 can also be formed at right angles, arcs or in a random grid. It is essential that approx. 100 profiles with a profile diameter of 0.3 mm are provided per square centimeter of holding surface 4 with an area coverage of at most 10%.
  • FIGS. 3 to 5 the manufacture of the holding surfaces 4 structured according to the invention is shown schematically in three successive steps in a side view of the profile.
  • the profiles 7 are arranged with an angle alpha of approximately 90 ° on the profile tip 8 with a smooth flank and with a relatively open, radius-shaped and undercut profile base 9.
  • edges of etched points are smooth when etching the uncovered areas, i.e. can be formed with little roughness without fissuring.
  • hard chrome plating finally creates the surface structure according to the invention, which does not have a cutting, but rather a shaping effect on the arch. At the same time, clogging with paper fibers is prevented.
  • the profile also has an increased service life. The structure is resistant to harsh, dissolving cleaning agents and has a long service life.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Discharge By Other Means (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • ing And Chemical Polishing (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
EP87105103A 1986-05-31 1987-04-07 Procédé de fabrication de surfaces d'arrêt structurées sur des pinces de feuilles ou sur des pièces de repos de pinces de feuilles Ceased EP0250732A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3618444 1986-05-31
DE3618444A DE3618444C1 (de) 1986-05-31 1986-05-31 Verfahren zur Herstellung strukturierter Halteflaechen an Bogengreifern,Bogengreiferauflagen oder dgl. Greifereinrichtungen fuer bogenbe- und -verarbeitende Maschinen

Publications (1)

Publication Number Publication Date
EP0250732A1 true EP0250732A1 (fr) 1988-01-07

Family

ID=6302093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87105103A Ceased EP0250732A1 (fr) 1986-05-31 1987-04-07 Procédé de fabrication de surfaces d'arrêt structurées sur des pinces de feuilles ou sur des pièces de repos de pinces de feuilles

Country Status (5)

Country Link
US (1) US4781791A (fr)
EP (1) EP0250732A1 (fr)
JP (1) JPS62298479A (fr)
BR (1) BR8702187A (fr)
DE (1) DE3618444C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734615C1 (en) * 1987-10-13 1988-12-08 Kiehl & Lang Gbr Manicure and pedicure files having a filing, grinding or polishing metal layer and process for the production thereof
US5879570A (en) * 1997-01-14 1999-03-09 Seagate Technology, Inc. One piece flexure for a hard disc file head with selective nickel plating
IT1304803B1 (it) * 1998-12-23 2001-03-29 Veneta Decalcogomme S R L Procedimento per la produzione di un nastro colorato in rilievo.
JP4753542B2 (ja) * 2003-06-05 2011-08-24 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト 被印刷体処理機械のくわえづめ装置
DE102006018982A1 (de) * 2006-04-25 2007-10-31 Koenig & Bauer Aktiengesellschaft Klemmgreifer mit einer Haltefläche
JP2008254264A (ja) * 2007-04-03 2008-10-23 Komori Corp 枚葉輪転印刷機における爪装置およびその製造方法
JP2010099888A (ja) * 2008-10-22 2010-05-06 Komori Corp 枚葉輪転印刷機における爪装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH491761A (de) * 1968-10-31 1970-06-15 Adlerwerke Kleyer Ag H Verfahren zum Bebildern oder Beschriften von blanken Metallteilen
DE3031123A1 (de) * 1979-10-25 1981-05-07 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Bogengreifereinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010535B (de) * 1955-02-03 1957-06-19 Richard Kauschka Verfahren und Vorrichtung zum Figurenaetzen auf Walzen
US2933040A (en) * 1958-12-19 1960-04-19 Harris Intertype Corp Sheet gripper element
US2972300A (en) * 1959-04-23 1961-02-21 Miehle Goss Dexter Inc Sheet gripper for printing presses
US4032378A (en) * 1974-11-11 1977-06-28 Consolidated Engravers Corporation Method of forming pattern roll
US4264410A (en) * 1978-08-16 1981-04-28 Minnesota Micro Metal, Inc. Method of making an abrading material
DD144377A1 (de) * 1979-07-02 1980-10-15 Hans Johne Halteflaeche an bogengreifereinrichtungen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH491761A (de) * 1968-10-31 1970-06-15 Adlerwerke Kleyer Ag H Verfahren zum Bebildern oder Beschriften von blanken Metallteilen
DE3031123A1 (de) * 1979-10-25 1981-05-07 VEB Kombinat Polygraph "Werner Lamberz" Leipzig, DDR 7050 Leipzig Bogengreifereinrichtung

Also Published As

Publication number Publication date
US4781791A (en) 1988-11-01
BR8702187A (pt) 1988-02-17
DE3618444C1 (de) 1987-05-07
JPS62298479A (ja) 1987-12-25

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19870916

AK Designated contracting states

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Effective date: 19880909

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18R Application refused

Effective date: 19890429

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SOLDERGELD, WERNER, DR.

Inventor name: SIMETH, CLAUS