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EP1173631B1 - Tonneau de galvanisation - Google Patents

Tonneau de galvanisation Download PDF

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Publication number
EP1173631B1
EP1173631B1 EP00926818A EP00926818A EP1173631B1 EP 1173631 B1 EP1173631 B1 EP 1173631B1 EP 00926818 A EP00926818 A EP 00926818A EP 00926818 A EP00926818 A EP 00926818A EP 1173631 B1 EP1173631 B1 EP 1173631B1
Authority
EP
European Patent Office
Prior art keywords
rib
barrel
electroplating
barrel according
shaped projections
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
EP00926818A
Other languages
German (de)
English (en)
Other versions
EP1173631A1 (fr
Inventor
Richard Tscherwitschke
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.)
Richard Tscherwitschke Kunststoff-Apparatebau und Ablufttechnik GmbH
Tscherwitschke Richard GmbH
Original Assignee
Richard Tscherwitschke Kunststoff-Apparatebau und Ablufttechnik GmbH
Tscherwitschke Richard GmbH
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
Priority claimed from DE19957045A external-priority patent/DE19957045A1/de
Application filed by Richard Tscherwitschke Kunststoff-Apparatebau und Ablufttechnik GmbH, Tscherwitschke Richard GmbH filed Critical Richard Tscherwitschke Kunststoff-Apparatebau und Ablufttechnik GmbH
Publication of EP1173631A1 publication Critical patent/EP1173631A1/fr
Application granted granted Critical
Publication of EP1173631B1 publication Critical patent/EP1173631B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C25D17/16—Apparatus for electrolytic coating of small objects in bulk
    • C25D17/18—Apparatus for electrolytic coating of small objects in bulk having closed containers
    • C25D17/20—Horizontal barrels

Definitions

  • the invention relates to a galvanizing drum in a Preamble of claim 1 explained training.
  • drums of this type they are the drum shell forming, made of plastic, perforated Sheath elements along each with one in Axial direction of the drum extending longitudinal rib Welded plastic.
  • the polygonal is usually used Drum jacket in cross section formed as a hexagon, so that the jacket elements on their longitudinal edges accordingly are to be chamfered with them with each other to be able to weld the longitudinal rib connecting a large area (see DE-OS 30 19 719 A1).
  • the invention is therefore based on the object for Electroplating drum as in the preamble of claim 1 is to be specified, for the mutual Connection of their jacket elements to usual welding operations can be dispensed with and which allows it without adapting the front transverse dimension of the jacket elements or with Jacket elements of the same width the volume of the drum jacket to vary to a certain extent.
  • the cross-sections of the ribs are designed in such a way that that drum coats with different cross sections or Have cross-sectional shapes made.
  • the cross section of the Rib attachments or by their outer rib surfaces Defined angle is chosen so that by side-by-side lining up of shell elements desired drum shell size results, for example, by seven jacket elements is determined.
  • drum coats should only be used in a smaller number of Sheath elements or with a correspondingly smaller volume are manufactured, so this is only the outer surface of the Rib attachments, for example, by milling change that the angle defined by them enlarged accordingly.
  • the invention accordingly enables the same in cross section trained jacket elements in each other to orientate different angular positions so that with Sheath elements with the same training drum coats different cross-sectional shapes can be produced, wherein the initial shape of the jacket elements can be such that by machining of the rib attachments with drum jackets smaller or larger number of jacket elements can be put together.
  • An education of the rib approaches according to claim 2 offers the Advantage of taking these for their mutual connection
  • Drum casing design is also useful if the Rib outer surfaces of each jacket element together, in the direction converging on the inside of the drum, an angle of about Include 60 °, which is appropriate for the preparation of a Clamping tool for clamping adjacent rib attachments has proven to be advantageous.
  • the perforated wall of the jacket elements can be flat be trained.
  • a preferred design is Subject of claim 5.
  • the bulging outwards Formation of the wall offers the advantage that the drum material optimally close to the anode of the Electroplating bath is moved past. At the same time it prevents that flat parts to be galvanized on the wall of the Jacket elements can adhere to the inside.
  • a training of the jacket elements according to claims 6 and 7 offers the advantage of having a perforated wall sufficient stability correspondingly thin or to be able to dimension material-saving.
  • the thickness of the crossbars is advantageously chosen such that the jacket elements can be separated along a crosspiece center are so that by stringing together and face homogeneous connection of jacket elements and if necessary a correspondingly shortened jacket element in Drum axis direction Drums in desired, graded Lengths can be produced, with the exception of one correspondingly shortened jacket elements always jacket elements of the same Format are usable.
  • the slits preferably on Gap should be provided to each other.
  • Slit perforation is particularly beneficial in terms of the electron flow during electroplating if the Extend slots in the drum circumferential direction.
  • the jacket elements entirely or only from their perforated wall part Injection-molded polymer that guarantees a long service life.
  • thermoplastic preferably Polypropylene or polyethylene
  • Wall part and Rib attachments are then to be designed in cross section in such a way that the latter splash positively on the wall part to let.
  • the combination of different thermoplastic Plastics, e.g. Polymer (PUR) and polyethylene, for Rib attachments and perforated wall parts of the jacket elements is generally worthy of protection for electroplating drums considered.
  • Electroplating drums are usually only made from a single plastic, namely polypropylene or polyethylene. This results in the disadvantage that the perforation of the drum shell narrows or becomes largely impermeable over time due to the small parts which are often circulated in the drum and are often sharp-edged. This disadvantage, which is serious for the electroplating process, is avoided by the proposed pairing of plastics.
  • This offers the advantage of being relatively large Drum end walls with the help of a relatively small and manufacture according to inexpensive injection mold can.
  • An embodiment of the education according to claim 12 the drum end wall provided, sector-shaped Front wall sections according to claim 13 offers the advantage the side rib approaches when gluing or cold welding of the drum end walls on one end of each Drum jacket at the same time with one end face of each longitudinal ribs formed by the lateral rib attachments in To bring cover and to connect with them.
  • end wall sections A preferred construction of the end wall sections is explained in claim 14, wherein, analogous to the Sheath elements, the rib lugs from the same plastic or from another thermoplastic material like that End wall sections can be formed.
  • the proposed design of the drum end walls offers a special advantage especially if this perforated at least over part of its wall surface are to be trained, since in this case the injection mold only over a relatively small area with corresponding Protrusions for preformation training must be provided.
  • the electroplating drum according to FIGS. 1 and 2 has one Drum jacket 10, which for example consists of a variety of made of plastic, especially polymer (PUR), existing and both lengthways and on the front side by gluing or cold welding connected jacket elements 11 formed one of which is shown in Fig. 3 in plan view.
  • PUR polymer
  • the drum On the circumference of the drum shell 10 is in a known manner the drum preferably removable cover provided to introduce good to be galvanized into this or to be able to take from this.
  • the drum jacket 10 is front by one Drum end wall 12 and 14 closed on this also glued or fixed by cold welding and each equipped with a drum bearing hub 12 'or 14' are. On the construction of these drum end walls 12, 14 will be discussed in more detail below. Can as well one-piece drum end walls as molded bodies be made.
  • the jacket elements 11 point to one plane in the projection radial to the drum axis a-a rectangular shape.
  • a rib extension 16 and 18 On her two, longitudinal sides extending parallel to the drum axis a-a is formed a rib extension 16 and 18, respectively protrudes outside of the jacket element 11 in a web-like manner (FIG. 3).
  • the length of the jacket elements 11 can be the total length of one Correspond to the drum jacket. Their length is preferably for designed a minimum drum length, so that for a Desired drum length of several such jacket elements 11 are to be attached to each other on the end face, as shown in FIG. 1 can be seen.
  • the individual jacket elements 11 have a axial length b, so that from such, in Drum circumferential direction firmly connected Jacket elements 11 a polygonal drum jacket 10 with a Minimum length b would be producible.
  • the drum casing 10 can have flat, perforated casing wall parts 20 have. In the present case, these are preferred outwards around an axis parallel to the drum axis a-a (see Fig. 5) convexly curved.
  • the rib attachments 16, 18 are designed in cross section in such a way that that with their help, as shown in FIGS. 5 to 7, polygonal drum coats with different sizes Drum cross sections or with a different number of cladding elements 11 made.
  • the ribs are in the present case 16, 18 e.g. shaped in cross section in such a way that corresponding reworking of the flat outer rib surfaces 21 and 22, based on a maximum possible number of for example, seven jacket elements 11 (FIG. 7) drum jackets produce with, for example, only 5 or 6 jacket elements 11 let (Fig. 5 and 6), for all such drum coats only a single injection mold for a jacket element 11 is required becomes.
  • the protruding section of the rib extensions 16, 18 serves to attach a clamping tool for the Clamping e.g. by sticking together firmly connecting rib lugs 16, 18, at the Rib outer surfaces 21, 22.
  • the two levels Rib outer surfaces 21, 22 In the fully sprayed state, define the two levels Rib outer surfaces 21, 22 one with his legs up the angle ⁇ intersecting the drum axis of, for example, 55 ° to make a drum shell from a total of seven Sheath elements 11. Should the number of sheath elements 11 e.g. are reduced in the sense explained above, so the Angle ⁇ by machining, for example Milling, the outer rib surfaces 21, 22 accordingly enlarge, in the case of only five jacket elements 11 e.g. on 75 °, for only six jacket elements 11 e.g. to 65 °.
  • the angle .alpha. Can also be chosen such that subsequent reduction of the same drum coats a correspondingly larger number of jacket elements have it made.
  • the planes are Inner surfaces 28 and 30 of the rib extensions 16, 18 are preferred inclined inward at an angle ⁇ of approximately 12 °.
  • This cross-sectional shape of the rib extensions 16, 18 means that Seat of the tensioning device favors this.
  • the jacket wall part 20 is preferably through Perforated slots perforated to each other extend in the drum circumferential direction.
  • jacket elements 11 can consist of only the outer wall part 20 thereof Polymer (PUR) and their lateral rib attachments 16, 18 cheaper from a known thermoplastic Plastic, such as polypropylene (PP) or polyethylene, too squirt. In this case one of them is together connecting parts 16, 20 and 18, 20 appropriately with undercut longitudinal grooves in order to Spraying process a positive mutual connection to achieve these parts.
  • PUR Polymer
  • PP polypropylene
  • PP polypropylene
  • the drum end walls 12, 14 can, like FIGS. 8 and 9 show from a variety of the same, side to side glued or cold-welded, sector-shaped End wall sections 39 are made, each one sector-shaped section 39 'of the bearing hub 12' or 14 ' wear. At these are also useful laterally with a core provided rib lugs 40, 42 formed, each one have flat outer surface 40 'or 42' with which they an outer surface of a rib extension 40 or 42 one adjacent end wall section 39 glued or are cold-weldable.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (15)

  1. Tonneau d'électrolyse, dont le corps (10) perforé, muni sur sa périphérie d'une ouverture à fermer au moyen d'un couvercle, présente une forme périphérique cylindrique avec une section s'écartant de la forme circulaire et est formé par une pluralité d'éléments de corps (11) en matière plastique, perforés et de forme rectangulaire selon une projection sur un plan radialement par rapport à l'axe du tonneau a-a, lesquels sont assemblés les uns aux autres au niveau de chacun de leurs côtés longitudinaux parallèles à l'axe du tonneau a-a au moyen d'une nervure longitudinale (26), caractérisé en ce que les nervures longitudinales (26) sont assemblées ensemble par collage ou soudage à froid et sont formées chacune par des talons de nervure (16, 18) formés contre un côté longitudinal des éléments de corps (11) voisins et munis d'une face extérieure de nervure (21 ou 22), en ce que les faces extérieures de nervure (21, 22) forment entre elles un angle α dont les branches se coupent sur l'axe du tonneau a-a et dont la valeur angulaire est définie pour un nombre donné d'éléments de corps (11) à assembler de manière fixe entre eux, et en ce que la section des talons de nervure (16, 18) est conçue de telle sorte que l'angle α peut être modifié de manière correspondante au moyen d'un usinage par enlèvement de copeaux des faces extérieures de nervure (21, 22) en vue de réaliser un tonneau d'électrolyse formé par un autre nombre d'éléments de corps (11).
  2. Tonneau d'électrolyse selon la revendication 1, caractérisé en ce que les talons de nervure (16, 18) forment des nervures longitudinales (26) en saillie vers l'extérieur à partir du corps du tonneau (10), lesquelles peuvent être assemblées sur toute la hauteur de la nervure.
  3. Tonneau d'électrolyse selon la revendication 1 ou 2, caractérisé en ce que les talons de nervure (16, 18) avec une section sensiblement rectangulaire sont traversés dans le sens longitudinal par un canal (23) dont la forme de section est adaptée à la section des nervures longitudinales.
  4. Tonneau d'électrolyse selon la revendication 3, caractérisé en ce qu'un noyau métallique (24) est inséré dans le canal (23) de manière à le rendre étanche.
  5. Tonneau d'électrolyse selon l'une des revendications précédentes, caractérisé en ce que la partie de paroi perforée (20) des éléments de corps (11), située entre les talons de nervure (16, 18), est bombée vers l'extérieur autour d'un axe parallèle à l'axe du tonneau a-a.
  6. Tonneau d'électrolyse selon la revendication 5, caractérisé en ce que, au niveau du côté extérieur des éléments de corps (11), sont formées des entretoises (36) couvrant la distance entre les talons de nervure (16, 18) desdits éléments de corps.
  7. Tonneau d'électrolyse selon la revendication 6, caractérisé en ce que les éléments de corps (11) forment un assemblage plan sur le côté frontal avec chacune des entretoises (36).
  8. Tonneau d'électrolyse selon l'une des revendications précédentes, caractérisé en ce que la partie de paroi perforée (20) des éléments de corps (11) est réalisée dans un polymère (polyuréthanne) et les talons de nervure (16, 48) latéraux de celle-ci sont réalisés dans une autre matière thermoplastique.
  9. Tonneau d'électrolyse selon l'une des revendications 1 à 7, caractérisé en ce que les éléments de corps (11) sont réalisés d'une seule pièce dans un même polymère (polyuréthanne).
  10. Tonneau d'électrolyse selon l'une des revendications 1 à 8, caractérisé en ce que les talons de nervure (16, 18) latéraux sont réalisés en polyéthylène.
  11. Tonneau d'électrolyse selon l'une des revendications 1 à 8, caractérisé en ce que les talons de nervure (16, 18) latéraux sont réalisés en polypropylène (PP).
  12. Tonneau d'électrolyse selon l'une des revendications précédentes, caractérisé en ce que les parois frontales du tonneau (12, 14) en matière plastique sont formées par des éléments de paroi frontale (39) en forme de secteurs, assemblés les uns aux autres latéralement par collage ou soudage à froid, lesquels forment ensemble un moyeu de support (12', 14') central.
  13. Tonneau d'électrolyse selon la revendication 12, caractérisé en ce que les parois frontales de tonneau (12, 14) sont formées par un nombre donné d'éléments de paroi frontale (39) en forme de secteurs, correspondant au nombre d'éléments de corps (11).
  14. Tonneau d'électrolyse selon la revendication 12 ou 13, caractérisé en ce que les éléments de paroi frontale (39) comportent chacun latéralement un talon de nervure (40 ou 42) formé contre ceux-ci et des talons de nervure (40, 42) voisins sont assemblés par collage ou soudage à froid pour former une nervure longitudinale et en ce que les nervures longitudinales sont en saillie radialement vers l'extérieur à partir des éléments de paroi frontale (39) sur la périphérie du tonneau et couvrent chacune sur le côté frontal du tonneau une nervure longitudinale (26) formée par les talons de nervure (16, 18) des éléments de corps (11).
  15. Tonneau d'électrolyse selon la revendication 13 ou 14, caractérisé en ce que les éléments de paroi frontale (39) sont perforés au moins sur une partie de leur surface (en 46).
EP00926818A 1999-04-28 2000-04-06 Tonneau de galvanisation Expired - Lifetime EP1173631B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19919344 1999-04-28
DE19919344 1999-04-28
DE19957045 1999-11-26
DE19957045A DE19957045A1 (de) 1998-11-26 1999-11-26 Galvanisiertrommel
PCT/EP2000/003057 WO2000066814A1 (fr) 1999-04-28 2000-04-06 Tambour de galvanoplastie

Publications (2)

Publication Number Publication Date
EP1173631A1 EP1173631A1 (fr) 2002-01-23
EP1173631B1 true EP1173631B1 (fr) 2003-02-19

Family

ID=26053116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00926818A Expired - Lifetime EP1173631B1 (fr) 1999-04-28 2000-04-06 Tonneau de galvanisation

Country Status (4)

Country Link
US (1) US6702932B1 (fr)
EP (1) EP1173631B1 (fr)
JP (1) JP2002543295A (fr)
WO (1) WO2000066814A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1119623B (de) 1959-02-12 1961-12-14 Linnhoff Ohg Wilhelm Trommelgalvanisierapparat
DE1757412A1 (de) 1968-05-04 1970-08-13 Rijkhoek Karel Willem Gefaess wie Flasche,Dose,Topf u.dgl. mit Sicherheitsverschluss
US4018427A (en) * 1975-01-23 1977-04-19 National Plastics & Plating Supply Co., Inc. Electroplating barrel sidewall construction
DE2729525A1 (de) 1977-06-30 1979-01-11 Hans Henig Trommel nach dem baukastensystem
DE3019719A1 (de) * 1980-05-23 1981-12-03 Richard Tscherwitschke GmbH, Kunststoff-Apparate und Ablufttechnik, 7022 Leinfelden-Echterdingen Vorrichtung zum chargenweisen oberflaechenbehandlung von werkstuecken, insbesondere zum galvanisieren
DE3429011A1 (de) 1984-08-07 1986-02-20 Frank 7118 Künzelsau Maurer Galvanisiertrommel
US4941960A (en) 1988-12-12 1990-07-17 Hans Henig Barrel for electroplating, phosphating and pickling
WO1997012080A1 (fr) * 1995-09-27 1997-04-03 Whyco Chromium Company, Inc. Systeme de panneaux pliants pour un tambour de placage
IT1280765B1 (it) 1995-10-27 1998-02-06 Edo Premru Procedimento per la fabbricazione di tamburi per buratti e tamburi cosi' ottenuti
DE19801675A1 (de) 1998-01-19 1999-07-22 Hans Henig Bauelemente des Mantels eines Trommelzylinders

Also Published As

Publication number Publication date
JP2002543295A (ja) 2002-12-17
EP1173631A1 (fr) 2002-01-23
US6702932B1 (en) 2004-03-09
WO2000066814A1 (fr) 2000-11-09

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