JPH0161194B2 - - Google Patents
Info
- Publication number
- JPH0161194B2 JPH0161194B2 JP7333483A JP7333483A JPH0161194B2 JP H0161194 B2 JPH0161194 B2 JP H0161194B2 JP 7333483 A JP7333483 A JP 7333483A JP 7333483 A JP7333483 A JP 7333483A JP H0161194 B2 JPH0161194 B2 JP H0161194B2
- Authority
- JP
- Japan
- Prior art keywords
- shell
- electroforming
- electroformed
- cavity
- mold
- 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
Links
- 238000005323 electroforming Methods 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001020 Au alloy Inorganic materials 0.000 claims 1
- 229910000881 Cu alloy Inorganic materials 0.000 claims 1
- 229910000990 Ni alloy Inorganic materials 0.000 claims 1
- 239000003353 gold alloy Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 13
- 238000000465 moulding Methods 0.000 description 9
- 238000007747 plating Methods 0.000 description 7
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 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
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012545 processing Methods 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
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium 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
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007772 electroless plating Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000010970 precious metal Substances 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
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 238000007740 vapor deposition 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
仕上を行なつているため下記の欠点がある。 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 is performed in a subsequent process, resulting in the following drawbacks.
(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、殻と内胴の
プラスチツク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 of the inner shell.
(2) 金メツキ仕上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 gold plating finish, 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、品質の良い金メツキ
ケースを提供すると同時に、仕上外殻の良いもの
を得るための製造方法である。 The present invention has been made to eliminate the above-mentioned drawbacks, and is a manufacturing method that reduces the number of steps, provides a high-quality gold-plated case, and at the same time provides a well-finished outer shell.
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
電鋳キヤビテイ７の製作であるが、前記電鋳殻１
の表面に厚メツキ後剥離処理または樹脂コーテイ
ング後蒸着等による導電被膜を形成したものを２
次マスターとし、電鋳キヤビテイ７の電鋳を行
う。厚メツキまは樹脂コーテイングの目的は電鋳
殻１と電鋳キヤビテイ７にクリアランスを設うけ
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程度が良く電鋳キヤビテイの電
鋳材質はコスト、品質を考慮するとニツケルまた
は銅が良くまた二層にしても良い。２次マスター
から剥離した電鋳キヤビテイ７の裏面に樹脂また
は金属粉末入り樹脂等で充填しインサート成形金
型に組込み電鋳キヤビテイを用いたインサート成
形金型を完成させる。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
を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。また電鋳殻１は電鋳時にガラス挿
入部、ボタン穴部を不導体材料でマスキングすれ
ば後加工が合理化される。また、形状によつてイ
ンサート成形金型に電鋳殻をセツトする時射出成
形するときにキズがつくようであれば電鋳キヤビ
テイに薄膜の樹脂コーテイングをしても良い。 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 electroforming cavity 7 of the insert molding mold is manufactured.
2.A conductive film is formed on the surface by thick plating followed by peeling treatment or resin coating followed by vapor deposition.
The next master is used to electroform the electroforming cavity 7. The purpose of the thick plating or resin coating is to provide clearance between the electroformed shell 1 and the electroformed cavity 7. The amount of clearance varies depending on the shape of the watch side, but it is recommended that it be between 5μ and 1000μ, depending on the electroformed material of the electroformed cavity. In terms of cost and quality, nickel or copper is better, or it can be made of two layers. The back side of the electroforming cavity 7 peeled off from the secondary master is filled with resin or resin containing metal powder, and then incorporated into an insert molding mold to complete an insert molding mold using the electroforming cavity. Next, the electroformed shell 1 is cut, press punched, etc. to form the glass insertion part and buttonhole part, and then coated with a finishing plating layer made of precious metals such as nickel, gold, rhodium, and chromium, and then molded into an insert molding mold. The watch side is completed by injection molding. Further, post-processing of the electroformed shell 1 can be streamlined by masking the glass insertion portion and buttonhole portion with a nonconducting material during electroforming. Furthermore, if the shape of the electroformed shell causes scratches during injection molding when the electroformed shell is set in the insert mold, the electroformed cavity may be coated with a thin resin film.
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キヤビテイを作製しているた
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でき
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。 In the method of the present invention, the cavity of the insert molding mold is manufactured based on the electroformed shell as described above, so there is no deformation of the shell due to the pressure during injection molding, and there is no need for finishing processing after injection molding. Since the finish plating can be done before injection molding, it becomes 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図はインサート成形時の金
型の断面図、第４図は本発明の工程を示すブロツ
ク図である。
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……キヤビテイ、７
ａ……電鋳製キヤビテイ、８……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 mold during insert molding. , and FIG. 4 are block diagrams showing the steps of the present invention. 1...Electroformed shell, 2...Plastic inner shell, 3...
...Glass, 4...Plastic electroforming mother mold, 5...
...Conductive film, 6...Mask, 7...Cavity, 7
a...Electroformed cavity, 8...Insert molding mold.
Claims (1)
面を構成する胴の殻をニツケル、銅、又は、金合
金等の一種又は二種類以上の組合せの電鋳で製作
し、その逆転電鋳でプラスチツク射出成形のキヤ
ビテイー形状の一部又は全部を構成した射出成形
型の中に、前出胴殻をインサートし、射出成形す
る腕時計側の製造方法。1. In the manufacturing method of the case of a wristwatch, the case shell constituting the outer surface of the case is manufactured by electroforming of one or a combination of two or more materials such as nickel, copper, or gold alloy, and then reverse electroforming is performed. A manufacturing method for a wristwatch, in which a front shell is inserted into an injection mold that forms part or all of the cavity shape of plastic injection molding, and then injection molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7333483A JPS59197885A (en) | 1983-04-26 | 1983-04-26 | Manufacture of wrist watch case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7333483A JPS59197885A (en) | 1983-04-26 | 1983-04-26 | Manufacture of wrist watch case |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59197885A JPS59197885A (en) | 1984-11-09 |
| JPH0161194B2 true JPH0161194B2 (en) | 1989-12-27 |
Family
ID=13515163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7333483A Granted JPS59197885A (en) | 1983-04-26 | 1983-04-26 | Manufacture of wrist watch case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59197885A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941506A (en) * | 2018-06-29 | 2018-12-07 | 福州珂麦表业有限公司 | A kind of solid wristwatch case manufacture craft of noble metal |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104593831A (en) * | 2015-01-26 | 2015-05-06 | 黄盛平 | Method for producing watch by virtue of 3D noble metal technique |
-
1983
- 1983-04-26 JP JP7333483A patent/JPS59197885A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941506A (en) * | 2018-06-29 | 2018-12-07 | 福州珂麦表业有限公司 | A kind of solid wristwatch case manufacture craft of noble metal |
| CN108941506B (en) * | 2018-06-29 | 2020-10-30 | 福州珂麦表业有限公司 | Manufacturing process of precious metal solid watch case |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59197885A (en) | 1984-11-09 |
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