EP2370865B1 - Verfahren zur dreidimensionalen verzierung - Google Patents

Verfahren zur dreidimensionalen verzierung Download PDF

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Publication number
EP2370865B1
EP2370865B1 EP09760860.8A EP09760860A EP2370865B1 EP 2370865 B1 EP2370865 B1 EP 2370865B1 EP 09760860 A EP09760860 A EP 09760860A EP 2370865 B1 EP2370865 B1 EP 2370865B1
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EP
European Patent Office
Prior art keywords
decorations
mask
dial
cavity
section
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.)
Active
Application number
EP09760860.8A
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English (en)
French (fr)
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EP2370865A1 (de
Inventor
Yves Winkler
Stewes Bourban
Pascal Grossenbacher
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.)
Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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Publication date
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Publication of EP2370865A1 publication Critical patent/EP2370865A1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/32—Processes for applying liquids or other fluent materials using means for protecting parts of a surface not to be coated, e.g. using stencils, resists
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/003—Selecting material
    • B21J1/006—Amorphous metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
    • B44B1/00—Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled three-dimensionally for making single sculptures or models
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/10—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/18—Graduations on the crystal or glass, on the bezel, or on the rim
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0002—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe
    • G04D3/0043—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms
    • G04D3/0048—Watchmakers' or watch-repairers' machines or tools for working materials for mechanical working other than with a lathe for components of the time-indicating mechanisms for dials

Definitions

  • the present invention relates to a method for decorating an element
  • the document FR1280803 discloses a method of decorating an element by means of an anchor mounted in a cavity of said element.
  • a disadvantage of this system is that there is not a good grip of the indices. Indeed, these are made on the surface of the dial without having any means to ensure a good grip of the decorations on said dial.
  • electroplating does not allow, by definition, the deposition of an element on a high thickness, this technique is therefore limited.
  • the present invention relates to a method as defined by the appended claims.
  • An advantage of the process is that this process allows good adhesion of the decorations to the base.
  • Another advantage is the use of amorphous metal which allows a good precision of the decorations. Indeed, when the amorphous metal is heated to reach a temperature between its glass transition temperature Tg and its crystallization temperature Tx of said material, its viscosity is greatly reduced without losing its amorphous structure. The amorphous material then becomes easier to shape since it can then perfectly marry all the details of the mold in which it is pressed.
  • An advantage of these embodiments is that they allow improved attachment of the decorations to the base.
  • the present description relates to a method of three-dimensional decoration of a watch dial. Nevertheless, this example will be taken on a non-limiting basis and it is quite obvious that this method can be applied to all sorts of elements such as a watch bezel or any other element that can receive three-dimensional decorations.
  • the figures 1a to 1e represent a first embodiment of the present invention.
  • a dial 1 is produced.
  • This dial 1 has an upper face 2 and a lower face 3.
  • This dial 1 can be made of a metal or its alloy and/or of another material usually used, such as ceramic or enamel.
  • This dial 1 is produced by known methods such as machining, molding or others.
  • the upper surface 2 of the dial 1 can be of any shape, that is to say have a flat or curved, smooth or sculpted profile such as a crenellation, for example by guillochage or by beading.
  • a mask 4 is made and then placed on the upper surface 2 of dial 1.
  • This mask 4 has openings 4'. These openings 4' determine the shape and the thickness of the future decorations 5.
  • the mask 4 can also have a thickness which is not constant, thus making it possible to produce decorations 5 of different thicknesses
  • the openings 4' of the mask 4 are located above the areas of the dial 1 to be decorated. It is therefore understood that the openings 4' form a mold whose bottom is closed by the dial 1.
  • the shapes and dimensions of the mask 4 and those of the dial 1 may or may not be identical.
  • a third step called c) the mold thus formed by the dial 1 and the mask 4 is filled with the constituent material of the decorations 5.
  • the filling of the opening 4' is carried out by hot forming.
  • This technique uses the adaptation of the viscosity of the materials to allow a total filling of the spaces and thus a homogeneous and precise manufacture of the decorations 5.
  • a material such as for example a metal or a metal alloy, precious or not, which can be, for example, rendered amorphous.
  • the material is made liquid at a temperature above its melting point and then quickly cooled. This then prevents the atoms from forming.
  • this amorphous material is preferably put in the form of a preform.
  • This preform has an appearance similar to the part to be produced.
  • the decorations 5 to be produced on the dial 1 can be the hour markers arranged in an annular fashion around the dial 1.
  • the preform made of amorphous material preferably takes on an annular shape.
  • the width of the preform is at least equal to the width of the hour indices.
  • the dial 1 is placed in a hot press and then covered by the mask 4, so that its openings 4' are above the places to receive the decorations 5.
  • the preform in amorphous material.
  • the whole is then heated to reach a temperature between the glass transition temperature Tg and the crystallization temperature Tx of said material. In this temperature range, the amorphous material sees its viscosity greatly reduced without losing its amorphous structure. The amorphous material then becomes easier to shape since it can then perfectly marry all the details of the mold in which it is pressed.
  • the finishes of the vertical walls of decorations 5 can be carried out by directly sculpting the walls 4a of the mask 4.
  • these can be made after any excess material has been removed, making it possible to obtain a contrast in the finish between the different surfaces of the decorations 5.
  • the mold formed by dial 1 and mask 4 is filled by electroplating.
  • This technique is used to make decorations 5 in metal.
  • a bath comprising suitable salts and metal ions is used.
  • mask 4 is placed on dial 1 so as to form a mold whose bottom is made electrically conductive.
  • the conductive parts of dial 1 are then connected to an electrode and then the assembly is immersed in said bath.
  • an electric current is then sent so as to carry out electrolysis of the electroplating type.
  • This electroplating produces a migration of the metal ions from the bath towards the conductive parts of the dial 1 in order to form the decorations 5.
  • those skilled in the art of electroplating will adapt the parameters without it being necessary to explain them in the present invention.
  • the decorations 5 are made by injection of metal.
  • the dial 1 - mask 4 assembly is placed in an injection machine capable of filling the molds with liquid metal in order to create said decorations 5.
  • the metal used will be brought to a temperature at least higher than the glass transition temperature Tg and will be cooled so as to give this metal an amorphous structure.
  • the amorphous structure then allows less solidification shrinkage compared to a metal with a crystalline structure.
  • a fourth step d) is carried out in order to remove a surplus of material deposited during step c).
  • This excess material deposited is removed by lapping or by any other possible means such as for example by chemical bath.
  • a step e the mask 4 is removed from the dial 1 taking care not to damage the decorations.
  • a dial 1 is thus obtained, the upper surface 2 of which comprises decorations 5.
  • step a) consists in making the dial 11 which will be decorated. Nevertheless, this embodiment is distinguished by the presence on the upper surface 12 of the dial 11, of cavities 6. These cavities 6 are made at the places where the decorations 5 must be made. Preferably, these cavities 6 have a section smaller than that decorations 5. They are intended to form anchoring means 7 allowing better grip of the decorations 5.
  • the attachment of the anchoring means 7 can be greater or lesser depending on the inclination of the walls 6a of the cavities 6 with respect to a vertical plane.
  • Step b) consists of placing the mask 4 on the dial 11 but ensuring that the cavities 6 and the openings of the mask 2 communicate with each other in order to form a mould.
  • step c) said mold is filled in order to form said decorations 5 but also the anchoring means 7.
  • These anchoring means 7 comprise a part 8 formed in the cavity 6.
  • This part 8 is made of the material deposited in step c) and therefore forms a single piece with its associated decoration 5.
  • the wall shapes 6a of the cavities 6 then improve the anchoring of the decorations 5.
  • Steps d) and e) of this second embodiment are identical in all respects to steps d) and e) of the first embodiment.
  • a dial 11 is thus obtained, the upper surface 12 of which comprises decorations 5 fitted with parts 8.
  • step a) consists in making the dial 21 which will be decorated. Nevertheless, this embodiment is distinguished by the presence on the upper surface 22 of dial 21, of cavities 6 and on the lower part 23 of dial 21, of holes 6'. These cavities 6 and these holes 6' communicate together in order to form an opening.
  • the section of the holes 6' will be greater than the section of the cavities 6.
  • the depth of the cavities 6 will preferably be greater than that of the holes 6'. Provision can also be made for the cross-section of the space formed by the cavity 6 and the hole 6' to vary uniformly or for the hole 6' to be arranged to form a setback relative to the cross-section of the cavity 6.
  • the shape of the cavities is as defined in claim 1.
  • Step b) consists, as for the second embodiment, in placing the mask 4 on the dial 21 by ensuring that the openings 4' of the mask 24 communicate with the cavities 6 and incidentally with the holes 6' in order to form a mould.
  • This step b) also consists in placing dial 21 on closure means 9 of one end of said mold substantially at the level of lower surface 23.
  • Step c) consists in filling each mold, that is to say the opening 4', the cavity 6 and the hole 6'.
  • the anchoring means 7 of the third embodiment comprise the part 8' formed by the cavity 6 and by the hole 6'. This embodiment is more effective than the previous one because the shoulder present between the cavity 6 and the hole 6' improves the anchoring of the decorations 5.
  • Step d) of this third embodiment is the same as that of the previous embodiments.
  • Step e) consists in removing the mask 4 but also the closure means 9.
  • a dial 21 is thus obtained, the upper surface 22 of which includes decorations 5 fitted with parts 8'.
  • step a) consists in making a dial 31 provided with through cavities 6" as defined in claim 1.
  • Step b) is the same as for the third embodiment, that is to say consists in placing on a closure means 10 and the mask 4 in order to form the mould.
  • This means 10 comprises recesses 100 which communicate with the cavities 6" when the dial 31 is placed on the means 10.
  • These recesses 100 can be of any shape, that is to say with straight or inclined sides 100a.
  • the section of the hollows 100 will be greater than that of the cavities 6".
  • Each mold of a decoration 5 then consists of the space created by an opening 4' of the mask 4, a cavity 6" and a hollow 100.
  • Step c) consists in filling the mold with the constituent material of the decorations 5. It is therefore a question of filling as previously the openings 4' of the mask 4, the cavities 6" but also the hollows 100.
  • This configuration allows a grip decorations 5 similar to that of the third embodiment but without having the disadvantage of having to pierce dial 31 with two different sections and from two different sides.
  • anchoring means 7 then comprise the part 8" and the closing means 10.
  • the anchoring means 7 also include this support 10.
  • step d) is the same for the previous embodiments.
  • Step e) is the same as for the third embodiment, that is to say consists of removing the mask 4 and the closure means 10.
  • a dial 31 is thus obtained, the upper surface 32 of which comprises decorations 5 provided with an 8" piece, part of the 8" piece projecting from the lower surface 33 of the dial 31. It is understood that the projecting part can then be used as the feet of the dial 31.
  • step e) also consists in not separating the support 10 from the dial 31.
  • a dial 31 is thus obtained, the upper surface 32 of which comprises decorations 5 provided with part 8" and the means of closure 10.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Adornments (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (8)

  1. Verfahren zur Verzierung eines Elements (1, 11, 21, 31), umfassend die folgenden Schritte:
    a) Bereitstellen des Elements (1, 11, 21, 31), wobei das Element eine obere Außenseite und eine untere Außenseite besitzt und das Element Verankerungsmittel (7) umfasst, die eine bessere Befestigung der Verzierung (5) an der oberen Oberfläche des Elements ermöglichen, wobei die Verankerungsmittel (7) mindestens ein Teil (8, 8', 8") aufweisen, das in einem Hohlraum (6, 6', 6") des Elements montiert ist, der sich an der zu verzierenden Stelle befindet, wobei der Hohlraum einen ungleichmäßigen Querschnitt aufweist, und der Querschnitt des mindestens einen Hohlraums an der Oberseite (22, 32) des Elements (1, 11, 21, 31) geringer als an seiner Unterseite (23, 33) ist;
    b) Herstellen einer Maske (4) mit der gewünschten Dicke für die Verzierungen (5), die mindestens eine Öffnung (4') aufweist;
    c) Anlegen der mindestens einen Öffnung der Maske (4) an die zu verzierenden Stelle, um mindestens eine Gießform (4', 6, 6', 6", 100) zu bilden;
    d) Füllen der mindestens einen Gießform durch Einspritzen mit einem metallischen Material, das auf eine Temperatur gebracht wird, die mindestens über seiner Glasübergangstemperatur Tg liegt, und das anschließend abgekühlt wird, um diesem Metall eine amorphe Struktur zu verleihen, um das Element (1, 11, 21, 31) zu formen;
    e) Entfernen der Maske (4).
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Querschnitt des mindestens einen Hohlraums geringer als der Querschnitt der mindestens einen Öffnung der Maske (4) ist.
  3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der mindestens eine Hohlraum (6', 6") durchgängig ist.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass das Element (31) auf einem Verschlussmittel (10) angeordnet wird, damit mindestens eine Ausnehmung des Trägers (100) mit dem mindestens einen Hohlraum (6") des Elements in Verbindung steht.
  5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Verfahren zwischen den Schritten d) und e) ferner den Schritt f) umfasst, der darin besteht, überschüssiges Füllmaterial zu entfernen, um die obere Außenseite der Verzierungen (5) mit jener der Maske (4) auszurichten.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die verschiedenen Oberflächen der Verzierungen (5) nicht die gleiche Oberflächenbeschaffenheit aufweisen.
  7. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Element ein Zifferblatt einer Uhr ist.
  8. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Element eine Lünette einer Uhr ist.
EP09760860.8A 2008-11-28 2009-11-26 Verfahren zur dreidimensionalen verzierung Active EP2370865B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08020713A EP2192454A1 (de) 2008-11-28 2008-11-28 Verfahren zur dreidimensionalen Verzierung
PCT/EP2009/065910 WO2010060959A1 (fr) 2008-11-28 2009-11-26 Procédé de décoration tridimensionnelle

Publications (2)

Publication Number Publication Date
EP2370865A1 EP2370865A1 (de) 2011-10-05
EP2370865B1 true EP2370865B1 (de) 2022-01-26

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EP08020713A Withdrawn EP2192454A1 (de) 2008-11-28 2008-11-28 Verfahren zur dreidimensionalen Verzierung
EP09760860.8A Active EP2370865B1 (de) 2008-11-28 2009-11-26 Verfahren zur dreidimensionalen verzierung

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EP08020713A Withdrawn EP2192454A1 (de) 2008-11-28 2008-11-28 Verfahren zur dreidimensionalen Verzierung

Country Status (7)

Country Link
US (3) US8999217B2 (de)
EP (2) EP2192454A1 (de)
JP (1) JP5416216B2 (de)
KR (1) KR101422899B1 (de)
CN (1) CN102265226B (de)
HK (1) HK1164471A1 (de)
WO (1) WO2010060959A1 (de)

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EP3839659B1 (de) * 2019-12-16 2024-04-03 Rubattel et Weyermann S.A. Verfahren zur dekoration eines mechanischen bauteils

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EP2400354A1 (de) * 2010-06-22 2011-12-28 The Swatch Group Research and Development Ltd. Zifferblattfuß einer Uhr
EP2400353A1 (de) * 2010-06-22 2011-12-28 The Swatch Group Research and Development Ltd. Uhrenzeiger
US9108279B2 (en) 2010-06-22 2015-08-18 The Swatch Group Research And Development Ltd Method of assembling a part
EP2549341A1 (de) 2011-07-20 2013-01-23 The Swatch Group Research and Development Ltd. Verfahren zum Einsetzen einer Verzierung in einem Uhrenverkleidungselement, mittels Galvanoplastik abgeschieden, und nach diesem Verfahren hergestelltes Verkleidungselement
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EP2725000B1 (de) * 2012-10-24 2019-08-28 The Swatch Group Research and Development Ltd. Selektiv leitende und mit Metallmaterial beschichtete Keramik
CN103383537A (zh) * 2013-07-09 2013-11-06 玄旼暻 表圈及其制造方法
EP2835698A1 (de) * 2013-08-07 2015-02-11 The Swatch Group Research and Development Ltd. Verkleidungselement mit Schutzhaube aus metallischem Glas
JP6135610B2 (ja) * 2014-06-30 2017-05-31 カシオ計算機株式会社 植字固定方法、植字固定構造及び時計
EP3185086B1 (de) * 2015-12-21 2019-06-12 The Swatch Group Research and Development Ltd. Applique für zifferblatt einer uhr
CH712210B1 (fr) * 2016-03-14 2020-02-14 Nivarox Sa Procédé de fabrication d'un composant d'affichage d'horlogerie.
CH712474A2 (fr) * 2016-05-19 2017-11-30 Swatch Group Res & Dev Ltd Procédé de fabrication d'une pièce pour l'horlogerie dotée d'un élément d'habillage en relief.
EP3246767B1 (de) * 2016-05-19 2019-01-09 The Swatch Group Research and Development Ltd. Herstellungsverfahren einer uhr, die mit einem hohlen oder reliefartigen verkleidungselement ausgestattet ist
CH713265B1 (fr) * 2016-12-20 2020-09-30 Montres Jaquet Droz Sa Cadran de montre à décor tridimensionnel, et outillage d'assemblage.
CN107329390B (zh) * 2017-07-27 2023-06-16 广州番禺职业技术学院 一种高温珐琅表盘及其制作方法
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WO2019120933A1 (fr) 2017-12-20 2019-06-27 Eta Sa Manufacture Horlogère Suisse Procédé de fabrication d'un cadran comprenant au moins un élément tridimensionnel
CH714721B1 (fr) * 2018-03-06 2023-12-29 Nivarox Far Sa Procédé de fabrication d'une applique diamantée d'horlogerie.
CN108436383B (zh) * 2018-05-29 2021-10-01 新乡市长城铸钢有限公司 一种铸件标识号的焊接方法
EP3587625A1 (de) 2018-06-28 2020-01-01 Comadur S.A. Herstellungsverfahren von dekorteilen
EP3712712B1 (de) * 2019-03-18 2021-10-20 Montres Jaquet Droz SA Ziifferblatt einer uhr, das mit einem 3d-dekor versehen ist
EP3786722A1 (de) 2019-08-27 2021-03-03 Comadur S.A. Verfahren zur dekoration eines mechanischen bauteils
EP4307053A1 (de) 2022-07-13 2024-01-17 The Swatch Group Research and Development Ltd Verfahren zur herstellung einer uhrenkomponente

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EP2192454A1 (de) 2010-06-02
CN102265226A (zh) 2011-11-30
HK1164471A1 (en) 2012-09-21
US9694386B2 (en) 2017-07-04
CN102265226B (zh) 2014-06-04
JP5416216B2 (ja) 2014-02-12
JP2012512385A (ja) 2012-05-31
US20110236580A1 (en) 2011-09-29
US9669424B2 (en) 2017-06-06
KR101422899B1 (ko) 2014-07-23
US20150352593A1 (en) 2015-12-10
US20150316893A1 (en) 2015-11-05
KR20110095920A (ko) 2011-08-25
EP2370865A1 (de) 2011-10-05
WO2010060959A1 (fr) 2010-06-03
US8999217B2 (en) 2015-04-07

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