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WO2006005549A2 - Dispositif de serrage pour un cylindre d'impression - Google Patents

Dispositif de serrage pour un cylindre d'impression Download PDF

Info

Publication number
WO2006005549A2
WO2006005549A2 PCT/EP2005/007434 EP2005007434W WO2006005549A2 WO 2006005549 A2 WO2006005549 A2 WO 2006005549A2 EP 2005007434 W EP2005007434 W EP 2005007434W WO 2006005549 A2 WO2006005549 A2 WO 2006005549A2
Authority
WO
WIPO (PCT)
Prior art keywords
clamping device
holder
printing cylinder
holding surfaces
holding
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
PCT/EP2005/007434
Other languages
German (de)
English (en)
Other versions
WO2006005549A3 (fr
Inventor
Klaus KÖLLING
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.)
Kaspar Walter GmbH and Co KG
Original Assignee
Kaspar Walter 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 Kaspar Walter GmbH and Co KG filed Critical Kaspar Walter GmbH and Co KG
Publication of WO2006005549A2 publication Critical patent/WO2006005549A2/fr
Publication of WO2006005549A3 publication Critical patent/WO2006005549A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
    • C25D17/06—Suspending or supporting devices for articles to be coated
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/04—Tubes; Rings; Hollow bodies

Definitions

  • the invention relates to a clamping device according to the preamble of patent claim 1.
  • FIG. 1 shows a hollow cone described in EP 0 596 399 A1, which serves as a holder 1 and is installed in a galvanic plant in the manner described in EP 0 596 399 A1.
  • the holder 1 is shown in FIG. 1 a) in section, in FIG. 1 b) in the front view and in FIG. 1 c) in perspective view.
  • a dashed axis end 2 ei ⁇ nes pressure cylinder is shown.
  • Fig. Ia is clearly visible that the current from the holder 1 exclusively via an edge 3 of an end face of Achs ⁇ end 2 can be transmitted.
  • the high current required for galvanic machining is then transmitted via the hollow cones (holder 1) and the edges which touch them to the front sides of the axle ends 2 in the printing cylinder.
  • the invention is therefore based on the object to provide a clamping device for a printing cylinder, with which an improved contact between the axis end of the printing cylinder and the associated holder can be achieved to transmit higher amounts of electricity.
  • An inventive clamping device for a printing cylinder with two arranged on a common axis holders, wherein the holders each have a recess for receiving one end of the printing cylinder and are arranged with their recesses directed towards each other and are mounted undeliverable, is characterized in that at least one of Recesses has an inner contour with three vonein ⁇ other remote retaining surfaces on which the associated end of the printing cylinder is held during clamping.
  • the three mutually offset holding surfaces provide a kind of tripod beit, from which the associated axle end - can be clamped - similar to a three-jaw lining.
  • significantly more current can be transmitted with a holder designed in this way, without the undesirable upper heating or arcing occurring.
  • the reason for this is assumed that the z. B. in DE 101 21 937 Al described possible Abicalzbewegun ⁇ conditions between the holder and the axle end are prevented, since the axle end by the action of the tripod always at the three same Stel ⁇ len (holding surfaces) must rest.
  • the end of the printing cylinder is held exclusively on the holding surfaces.
  • the function of the three-leg is guaranteed, without disturbing further holding surfaces, where local overheating could occur.
  • the holding surfaces each cover a circle segment and are distributed uniformly, ie at an angle of 120 ° over the circumference of the recess. The even distribution supports the function of the "tripod".
  • the holding surfaces are raised relative to the rest of the inner contour and, in particular, protrude radially inward, ie form elevations with respect to the remaining inner contour.
  • the remaining inner contour of the holder accordingly returns radially and can not come into contact with the axle end.
  • the inner contour is designed substantially (hollow) conical or spherical segment segment.
  • the advantages of these forms in particular with regard to the acceptance of different axial end diameters, have been described.
  • the retaining surfaces should be arranged on a lateral surface of a common, fictitious (imaginary) cone or ball segment.
  • the shape of the remaining, existing between the retaining surfaces inner contour plays a rather subordinate role.
  • At least one line element made of a material which differs from the rest of the material of the holder is inserted in at least one of the holding surfaces.
  • the material of the line element should have an improved current and / or thermal conductivity compared to the remaining material of the holder.
  • the material of the holder may be steel and the material of the conductor element may be copper.
  • the line element supports the heat dissipation and thus cooling of the contact point due to its excellent heat-conducting property.
  • At least one additional element made of a material which differs from the rest of the material of the holder is used in at least one region of the holder between two holding surfaces.
  • the additional element can also be made of a material which has a current and / or thermal conductivity which is improved compared to the rest of the material of the holder.
  • the additional element especially the thermal conductivity plays a role, since the additional element can effectively contribute to the cooling of the entire holder. Accordingly, it is desirable to dimension the additional element as much as possible, but without impairing the strength of the holder.
  • the line element is designed pin-shaped and inserted into the holder such that its exiting on the holding surface end face flush with the holding surface.
  • the current can be uniformly transmitted to the axle end.
  • the end face of the conduit element and / or the additional element is adapted to the inner contour of the recess and thus neither protrudes from the inner contour nor forms a depression.
  • the line elements can be used in all three retaining surfaces. Accordingly, it is also advantageous if in each case one or more additional elements are inserted between the three holding surfaces.
  • the retaining surfaces are made entirely of a material that is different from the material of the rest of the holder.
  • the z. B. from Kup ⁇ fer or a hard copper alloy existing line elements voll ⁇ constantly form the holding surfaces.
  • the z. B. from Kup ⁇ fer or a hard copper alloy existing line elements voll ⁇ constantly form the holding surfaces.
  • Fig. 1 shows a known from the prior art holder in sectional view (a), front view (b) and perspective view
  • FIG. 2 shows a holder according to the invention in sectional view (a), front view (b) and perspective view (c).
  • FIG 3 shows a further embodiment of the holder according to the invention in sectional view (a), front view (b) and perspective view (c).
  • Fig. 4 is a sectional view of a portion of a bearing bridge with the holder according to the invention.
  • FIG. 2 shows a holder 11 according to the invention, which can be fastened to a bearing bridge to be described later in connection with FIG. 4.
  • the holder 11 essentially corresponds to the holder 1 described above with reference to the prior art in FIG. 1. It has a recess 12 in which an axis end 15 of a printing cylinder stylized by a dot-dash line can be recorded.
  • the holder 11 is opposite and arranged on a common axis, a second, not shown holder assigned, so that the pressure cylinder can be clamped with its two axle ends 15 between the two holders 11.
  • the holders 1 1 can be delivered to one another via the bearing bridge, so that the required clamping pressure can be generated.
  • the recess 12 has a substantially conical inner contour.
  • the hollow cone of the inner contour is interrupted by three retaining surfaces 13, which are raised in relation to a remaining inner contour 14, ie protrude radially inwards toward the main axis.
  • axle end 15 of the printing cylinder is only in contact with the three retaining surfaces 13, but not with the remaining inner contour 14, as shown in Fig. 2a) recognizable.
  • FIG. 3 shows another embodiment of the invention, which, however, is based essentially on the embodiment described in connection with FIG.
  • a line element 23 is used in each case in a holder 21 in three holding surfaces 22. While the holder 21 is made of steel, the conduit member 23 may preferably be a copper pin.
  • the conduit member 23 is incorporated in the holder 21 such that it terminates flush with an end face in the associated holding surface 22, as in particular in Figs. 3a) and 3c) recognizable. Furthermore, the conduit member 23 extends in the holder 21 axially to an opposite end face 24 of the holder 21, where the conduit member 23 also terminates flush.
  • the line elements 23 have, on the one hand, the function of improving the current transmission and, on the other hand, the function of dissipating the heat arising at the contact point to the outside, that is to say in particular in the direction of the end face 24.
  • the actual holding function is fulfilled by the restli ⁇ Chen, the conduit elements 23 surrounding retaining surfaces 22, which consist of steel and thereby required for a high contact pressure ensure mechanical strength.
  • FIG. 1 Another embodiment of the invention is also shown in FIG. 1
  • additional elements 25 are inserted in a manner similar to the line elements 23. Like these are the additional elements 25 z.
  • the additional elements 25 improve the heat conduction from the contact points to the opposite end face 24 of the holder 21. Since they are used in mechanically less stressed areas of the holder 21, they can be dimensioned larger than the line elements 23 without the total strength to impair.
  • the holding surfaces 22 can also be completely formed by line elements inserted into the holder 21.
  • the line elements 23 then only have the function of transmitting current and heat without having to perform any essential mechanical holding tasks.
  • FIG. 4 shows a section of a part of a bearing bridge to which the holder 21 according to the invention is screwed.
  • the Lagerbrük- ke shown in Fig. 4 is coaxially opposite in the Galvanikstrom assigned a second bearing bridge, so that the pressure cylinder between the two bearing bridges can be clamped.
  • the holder 21 is screwed to a shaft 30 which is rotatably mounted on a bearing 31 in a known manner.
  • a current transfer region 32 is provided, in which water-cooled grinding carbons 33 introduce the galvanizing current into a slip ring 34, from where it is transmitted via the shaft 30 and the holder 21 to the impression cylinder.
  • the shaft 30 is fitted at the bearing point 31 into the actual bearing bridge, which ultimately holds the pressure cylinder or drives it in rotation and lowers it into the plating bath or lifts it out of the electroplating bath after the end of the plating process.
  • the shaft 30 is traversed by cooling channels 35 and 36 through which cooling water can be pumped. Through this cooling circuit and the front, the holder 21 supporting part of the shaft 30 is cooled. Since the line elements 23 provided in the holder 21 and, if appropriate, the additional elements 25 transfer the heat from the contact points on the holding surfaces 22 through the holder 21 to its rear end face 24, the heat can reliably flow from there through the cooling channels 35, 36 are discharged cooling circuit.
  • Fig. 4 The structure shown in Fig. 4 represents a part of a known bearing bridge, so that a further description is unnecessary.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Abstract

L'invention concerne un dispositif de serrage pour un cylindre d'impression, lequel dispositif comprend deux supports (11) placés sur un axe commun et présentant chacun un évidement (12) destiné à recevoir une extrémité (15) du cylindre d'impression, les évidements (12) desdits supports étant placés l'un face à l'autre et montés de façon à pouvoir être ajustés l'un par rapport à l'autre. Ce dispositif de serrage se caractérise en ce qu'au moins un des évidements (12) présente un contour intérieur pourvu de trois surfaces de maintien (13), éloignées les unes des autres et contre lesquelles est maintenue l'extrémité associée (15) du cylindre d'impression lors du serrage.
PCT/EP2005/007434 2004-07-09 2005-07-08 Dispositif de serrage pour un cylindre d'impression Ceased WO2006005549A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410033332 DE102004033332A1 (de) 2004-07-09 2004-07-09 Einspannvorrichtung für Druckzylinder
DE102004033332.7 2004-07-09

Publications (2)

Publication Number Publication Date
WO2006005549A2 true WO2006005549A2 (fr) 2006-01-19
WO2006005549A3 WO2006005549A3 (fr) 2006-06-22

Family

ID=35612775

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/007434 Ceased WO2006005549A2 (fr) 2004-07-09 2005-07-08 Dispositif de serrage pour un cylindre d'impression

Country Status (2)

Country Link
DE (1) DE102004033332A1 (fr)
WO (1) WO2006005549A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8807030B2 (en) * 2006-07-19 2014-08-19 Kasper Walter GmbH & Co. KG Clamping device for printing cylinder
RU2722804C1 (ru) * 2019-06-10 2020-06-04 Саусвест Петролиэм Юниверсити (СВПЮ) Загуститель на основе катионного полимера, способ его получения и термостойкая жидкость для гидроразрыва пласта, получаемая с его использованием

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3150469C2 (de) * 1981-12-19 1985-02-07 Saueressig & Co, 4426 Vreden Vorrichtung zum Galvanisieren eines Rotations-Druckzylinders
DE3325316A1 (de) * 1983-07-13 1985-01-31 Maschinenfabrik Kaspar Walter GmbH & Co KG, 8000 München Verfahren und vorrichtung zum metallbeschichten, insbesondere zum verkupfern von zylindrischen koerpern
US5431802A (en) * 1985-05-10 1995-07-11 Showa Aluminum Corporation Cylinder tube and process for producing same
DE4236419C1 (de) * 1992-10-28 1994-01-13 Kaspar Walter Maschf Kg Spannvorrichtung für in einer galvanischen Anlage zu bearbeitende Tiefdruckzylinder
US5661565A (en) * 1993-05-05 1997-08-26 Ohio Electronic Engravers, Inc. Method and apparatus for aligning a cylinder in an engraver
US5706724A (en) * 1996-03-14 1998-01-13 Hurletron, Incorporated High-voltage contact assembly for a gravure press
EP0931858A1 (fr) * 1998-01-10 1999-07-28 MDC Max Dätwyler Bleienbach AG Dispositif pour le traitement galvanique d'un corps, qui peut être entrainé par rotation
DE19901765C2 (de) * 1999-01-18 2001-01-11 Kaspar Walter Gmbh & Co Kg Tragvorrichtung für Druckzylinder und Spannvorrichtung dafür
DE10121937C2 (de) * 2001-05-05 2003-05-28 Effing Gmbh Geb Einspannvorrichtung für Druckzylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8807030B2 (en) * 2006-07-19 2014-08-19 Kasper Walter GmbH & Co. KG Clamping device for printing cylinder
RU2722804C1 (ru) * 2019-06-10 2020-06-04 Саусвест Петролиэм Юниверсити (СВПЮ) Загуститель на основе катионного полимера, способ его получения и термостойкая жидкость для гидроразрыва пласта, получаемая с его использованием

Also Published As

Publication number Publication date
DE102004033332A1 (de) 2006-02-09
WO2006005549A3 (fr) 2006-06-22

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