JPH0231836B2 - - Google Patents
Info
- Publication number
- JPH0231836B2 JPH0231836B2 JP58113535A JP11353583A JPH0231836B2 JP H0231836 B2 JPH0231836 B2 JP H0231836B2 JP 58113535 A JP58113535 A JP 58113535A JP 11353583 A JP11353583 A JP 11353583A JP H0231836 B2 JPH0231836 B2 JP H0231836B2
- Authority
- JP
- Japan
- Prior art keywords
- shell
- mold
- electroformed
- electroforming
- heat
- 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
Links
- 238000000034 method Methods 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000005323 electroforming Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 229920006015 heat resistant resin Polymers 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000001746 injection moulding Methods 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 238000007747 plating Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
この発明は、腕時計側の胴の特に胴の外面を金
属、内面をプラスチツクでできた殻化ケースの製
造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a shell case for a wristwatch, in particular, the outer surface of the case is made of metal and the inner surface is made of plastic.
従来の殻化ケースは、金属殻を絞り加工又は、
ロー付加工によつて、製作されていたが、この方
法では、インサートインジエクシヨン成形時に該
殻と、インジエクシヨンキヤビテイ形状が製造上
寸法をピツタリ合わせることが不可能であり、イ
ンサート成形時に成形圧力により該殻の形状が部
分的に変形するため、後工程で研摩研削等の表面
仕上げを行なわなければならず、下記の欠点があ
る。 Conventional shelled cases are made by drawing a metal shell or
This method was manufactured by brazing, but with this method, it was impossible to precisely match the dimensions of the shell and the shape of the injection cavity during insert molding. Since the shape of the shell is partially deformed by the molding pressure, surface finishing such as abrasive grinding must be performed in a subsequent process, which has the following disadvantages.
(1) 後工程の研摩研削による発熱で殻とプラスチ
ツクの間に微細なスキマが発生し、殻とプラス
チツク製内胴の密着性が悪くなる。(1) The heat generated by the abrasive grinding process in the post-process creates a minute gap between the shell and the plastic, which deteriorates the adhesion between the shell and the plastic inner shell.
(2) 金メツキ等、メツキ仕上げが必要とする胴の
場合(1)で発生するスキマにメツキ液が入り込
み、後に完全な除去が不可能であるため耐食性
が非常に悪くなる。(2) In the case of a shell that requires a plating finish, such as gold plating, the plating liquid will enter the gap created in (1) and cannot be completely removed afterwards, resulting in extremely poor corrosion resistance.
本発明は上記の欠点を除去するためになされた
ものであり、工程を削減し、インジエクシヨンキ
ヤビテイの金型コストを下げ、品質の良い金メツ
キケースを提供すると同時に、仕上げ外観の良い
ものを得るための製造方法である。 The present invention was made in order to eliminate the above-mentioned drawbacks, and aims to reduce the number of steps, lower the mold cost of the injection cavity, provide a high-quality gold-plated case, and at the same time provide a good finished appearance. This is a manufacturing method for obtaining.
以下図面に示す実施例によつて本発明を詳述す
る。 The present invention will be explained in detail below with reference to embodiments shown in the drawings.
第１図は本発明の方法により製造された時計側
を示すもので、１は表面に時計側として必要な外
観仕様を有し電鋳加工による複雑でしかも高品質
の模様を有する電鋳殻であり、内側をプラスチツ
ク内胴２で構成されている。 Figure 1 shows a watch side manufactured by the method of the present invention, and 1 is an electroformed shell that has the appearance specifications necessary for a watch side on its surface and has a complex and high-quality pattern created by electroforming. There is a plastic inner shell 2 on the inside.
上記した時計側を製造するには、第２図に示す
様にまず希望のデザインで表面仕上げした電鋳用
マスターから忠実に転写されたプラスチツク製電
鋳母型４を公知のプラスチツク成形法、例えば射
出成形、圧縮成形等により加工する。次にプラス
チツク製電鋳母型４の表面に導電性を与えるため
に真空蒸着あるいは無電解メツキ法等により導電
性被膜５を形成し、次いでニツケル、銅、金、銀
などのメツキ可能な金属を電鋳法により電着し、
電鋳殻１を形成する。次にインサート成形金型の
インジエクシヨンキヤビテイ１２の製作である
が、第３図に示すごとく、前記電鋳殻１を作製す
るにおいて、マスク６をセツトしないで電鋳した
ものを２次電鋳マスター７とし、２次電鋳マスタ
ーの表面に厚メツキ７ａを施こし、離形剤７ｂを
塗布した後ガラス板８に乗せる。次にガラスリン
グ９とガラス板８とのスキマを粘土１０でシーリ
ングした後、耐熱樹脂又は金属粉末含有耐熱樹脂
１１を流し込み硬化させ、後加工したものをイン
ジエクシヨンキヤビテイ１２としてインサート成
形金型に組込んで金型を完成させる。２次マスタ
ー７への厚メツキは電鋳殻１とインジエクシヨン
キヤビテイ１２にクリアランスを設けるためでク
リアランス量は時計側形状によつても違うが5μ
〜1000μ程度が良い。またインジエクシヨンキヤ
ビテイ１２の素材となる耐熱樹脂は金属粉末が入
つているほうが強度が大きく重量で約80％程度金
属粉末が含有していたほうが強度的に強い。また
金属粉末には、アルミ、鉄、銅、ニツケル、ステ
ンレス等の金属粉末やアルミナ等の無機質の粉末
を含有した物が良い。次に電鋳殻１を切削・プレ
ス抜き加工等によつてガラス挿入部、ボタン穴部
等加工した後、ニツケル、金、ロジウム、クロム
等の貴金属から成る仕上げメツキ層を被覆してイ
ンサート成形金型にセツトし射出成形を行い時計
側を完成させる。 In order to manufacture the above-mentioned watch side, first, as shown in Fig. 2, a plastic electroforming master mold 4, which is faithfully transferred from an electroforming master whose surface has been finished with the desired design, is molded using a known plastic molding method, for example. Processed by injection molding, compression molding, etc. Next, a conductive film 5 is formed on the surface of the plastic electroforming mold 4 by vacuum evaporation or electroless plating to give conductivity, and then a platingable metal such as nickel, copper, gold, or silver is applied. Electrodeposited by electroforming method,
An electroformed shell 1 is formed. Next, the injection cavity 12 of the insert molding mold is manufactured.As shown in FIG. A casting master 7 is used, and the surface of the secondary electroforming master is plated 7a thickly, and a mold release agent 7b is applied, and then it is placed on a glass plate 8. Next, after sealing the gap between the glass ring 9 and the glass plate 8 with clay 10, heat-resistant resin or heat-resistant resin 11 containing metal powder is poured and hardened, and the post-processed product is used as an insert molding mold as an injection cavity 12. and complete the mold. The thick plating on the secondary master 7 is to provide clearance between the electroformed shell 1 and the injection cavity 12, and the amount of clearance varies depending on the shape of the watch side, but is 5μ.
~1000μ is good. In addition, the heat-resistant resin that is the material of the injection cavity 12 is stronger when it contains metal powder, and it is stronger when it contains about 80% metal powder by weight. Further, the metal powder preferably contains metal powder such as aluminum, iron, copper, nickel, stainless steel, etc., or inorganic powder such as alumina. Next, the electroformed shell 1 is processed by cutting, press punching, etc. to process the glass insertion part, buttonhole, etc., and then coated with a finishing plating layer made of precious metals such as nickel, gold, rhodium, and chromium, and then molded into the insert molding metal. Set in a mold and perform injection molding to complete the watch side.
本発明の方法は、上記の様に電鋳殻をもとに、
インサート成形金型のインジエクシヨンキヤビテ
イを耐熱樹脂または金属粉末含有耐熱樹脂で作製
しているため、電鋳殻とインジエクシヨンキヤビ
テイの間にスキマがないため、射出成形時の圧力
により殻の変形がなく、射出成形後、仕上げ加工
する必要がなくなるため仕上げメツキをインサー
ト射出成形前にすることが出来ることによつて金
色等のメツキ仕上げの殻化ケースが製造可能とな
る。又、外観形状が自由に表現できるためデザイ
ンの多様化が計られ通常の機械加工法では量産が
非常に難かしい複雑でしかも高品質の模様を有す
る時計側を大量に生産することが出来る。更に表
面模様は高品質に仕上げたマスターから正確に複
製されるため最終工程において研摩羽布などの仕
上げは全く不要であり加工能率が向上するなどそ
の効果は大きい。 The method of the present invention is based on the electroformed shell as described above.
Since the injection cavity of the insert molding mold is made of heat-resistant resin or heat-resistant resin containing metal powder, there is no gap between the electroformed shell and the injection cavity, so the pressure during injection molding causes the shell to Since there is no deformation and there is no need for finishing processing after injection molding, finish plating can be done before insert injection molding, making it possible to manufacture shelled cases with a plating finish such as gold. In addition, since the external shape can be expressed freely, designs can be diversified, and watch sides with complex and high-quality patterns that are extremely difficult to mass-produce using normal machining methods can be mass-produced. Furthermore, since the surface pattern is accurately reproduced from a high-quality finished master, there is no need for finishing such as polishing cloth in the final process, which has great effects such as improved processing efficiency.
第１図は本発明の方法で製造された時計側の断
面図、第２図は本発明の製造工程において電鋳殻
の製造の断面図、第３図は本発明のインジエクシ
ヨンキヤビテイの製造の断面図、第４図はインサ
ート成形時の金型の断面図である。
１……電鋳殻、２……プラスチツク内胴、３…
…ガラス、４……プラスチツク製電鋳母型、５…
…導電膜、６……マスク、７……２次電鋳マスタ
ー、７ａ……厚メツキ層、７ｂ……離形材塗布
層、８……ガラス板、９……ガラスリング、１０
……粘土、１１……耐熱樹脂又は金属粉末含有耐
熱樹脂、１２……インジエクシヨンキヤビテイ、
１３……インサート成形金型。
Fig. 1 is a cross-sectional view of the watch side manufactured by the method of the present invention, Fig. 2 is a cross-sectional view of the electroformed shell manufactured in the manufacturing process of the present invention, and Fig. 3 is a cross-sectional view of the injector excision cavity of the present invention. FIG. 4 is a cross-sectional view of the mold during insert molding. 1...Electroformed shell, 2...Plastic inner shell, 3...
...Glass, 4...Plastic electroforming mother mold, 5...
...Conductive film, 6...Mask, 7...Secondary electroforming master, 7a...Thick plating layer, 7b...Release material coating layer, 8...Glass plate, 9...Glass ring, 10
... Clay, 11 ... Heat-resistant resin or heat-resistant resin containing metal powder, 12 ... Injection cavity,
13...Insert mold.
Claims (1)
る電鋳殻を形成し、前記電鋳母型と同一の電鋳母
型から２次電鋳マスターを作成し、該２次電鋳マ
スターから樹脂で型を写しとつたものをインジエ
クシヨンキヤビテイとすることにより、該電鋳殻
と該インジエクシヨンキヤビテイの表面形状部を
ぴつたり合わせ、該電鋳殻と該インジエクシヨン
キヤビテイを金型に組込んでインサート成形金型
とし、前記電鋳殻をインサート成形金型にセツト
して射出成形を行うことを特徴とする腕時計側の
製造方法。 ２ 前記インジエクシヨンキヤビテイの一部また
は全部を耐熱樹脂あるいは金属粉末含有耐熱樹脂
で構成したことを特徴とする特許請求項１記載の
腕時計側の製造方法。[Scope of Claims] 1. An electroformed shell constituting the outer surface of the shell is formed from an electroformed mother mold by an electroforming method, and a secondary electroformed master is created from the same electroformed mother mold as the electroformed mother mold. By copying the mold from the secondary electroforming master with resin and using it as an in-die extension cavity, the surface shape of the electroformed shell and the in-die extension cavity are perfectly matched, and the electroforming is completed. A method for manufacturing a wristwatch, characterized in that the shell and the injection cavity are assembled into a mold to form an insert mold, and the electroformed shell is set in the insert mold to perform injection molding. 2. The method for manufacturing a wristwatch according to claim 1, wherein part or all of the injection cavity is made of a heat-resistant resin or a heat-resistant resin containing metal powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11353583A JPS604014A (en) | 1983-06-23 | 1983-06-23 | Manufacture of wrist watch case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11353583A JPS604014A (en) | 1983-06-23 | 1983-06-23 | Manufacture of wrist watch case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS604014A JPS604014A (en) | 1985-01-10 |
| JPH0231836B2 true JPH0231836B2 (en) | 1990-07-17 |
Family
ID=14614781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11353583A Granted JPS604014A (en) | 1983-06-23 | 1983-06-23 | Manufacture of wrist watch case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS604014A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5352158A (en) * | 1976-10-22 | 1978-05-12 | Seiko Instr & Electronics Ltd | Case for wristwatch and its production |
-
1983
- 1983-06-23 JP JP11353583A patent/JPS604014A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5352158A (en) * | 1976-10-22 | 1978-05-12 | Seiko Instr & Electronics Ltd | Case for wristwatch and its production |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS604014A (en) | 1985-01-10 |
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