JPH04144725A - Manufacture of faucet fitting - Google Patents
Manufacture of faucet fittingInfo
- Publication number
- JPH04144725A JPH04144725A JP26909690A JP26909690A JPH04144725A JP H04144725 A JPH04144725 A JP H04144725A JP 26909690 A JP26909690 A JP 26909690A JP 26909690 A JP26909690 A JP 26909690A JP H04144725 A JPH04144725 A JP H04144725A
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- faucet fitting
- cast
- molding
- cast product
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 29
- 239000000057 synthetic resin Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 238000001746 injection moulding Methods 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000005266 casting Methods 0.000 abstract description 4
- 238000005498 polishing Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009503 electrostatic coating Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 238000007517 polishing process Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Valve Housings (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は表面を合成樹脂で被覆した水栓金具の製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a faucet fitting whose surface is coated with a synthetic resin.
（従来の技術）
従来、水栓金具本体の外表面を合成樹脂層で被覆した水
栓金具の製造方法として、鋳造した水栓金具本体の外表
面に合成樹脂を静電塗装して０．１＝程度の合成樹脂層
を形成する方法がある。(Prior Art) Conventionally, as a manufacturing method of a faucet fitting in which the outer surface of the faucet fitting body is coated with a synthetic resin layer, a synthetic resin is electrostatically coated on the outer surface of a cast faucet fitting body to coat the outer surface of the faucet fitting body with a layer of synthetic resin. There is a method of forming a synthetic resin layer of about .
（発明が解決しようとする課題）
上記静電塗装により水栓金具本体の外表面に合成樹脂層
を形成する方法では光沢のある表面にするためには、塗
装の前に鋳造品の表面を研磨加工する工程が必要であり
、そのため工程数が多く、作業が面倒であるばかりでな
く研磨工程において作業上のミス等から不良品が発生す
ることもあり、また鋳造品に研磨式を設けなければなら
ないという問題もある。(Problems to be Solved by the Invention) In the method of forming a synthetic resin layer on the outer surface of the faucet fitting body by electrostatic painting, the surface of the cast product must be polished before painting in order to obtain a glossy surface. A machining process is required, which requires a large number of processes and is not only troublesome, but also defects may occur due to operational errors in the polishing process, and a polishing method must be provided for cast products. There is also the problem of not being able to do so.
しかも、静電塗装では樹脂被膜が薄いため表面が鋳造品
の素地通りの製品しかできないという不便、不都合があ
る。In addition, electrostatic coating has the inconvenience of producing a product whose surface looks exactly like the cast product because the resin coating is thin.
本発明は従来技術が有する上記問題点に鑑みてなされた
もので、その目的とする処は鋳造品表面の研磨加工が不
要で、研磨加工に伴なう種々の問題が無く、しかも鋳造
品表面の素地態様に拘束されない表面形態を得ることが
可能な水栓金具の製造方法を提供することにある。The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to eliminate the need for polishing the surface of a cast product, to eliminate the various problems associated with polishing, and to eliminate the need for polishing the surface of a cast product. It is an object of the present invention to provide a method for manufacturing a faucet fitting that can obtain a surface form that is not restricted by the form of the base material.
（課題を解決するための手段）
上記目的を達成するために本発明の水栓金具の製造方法
では、研磨代を設けない寸法の水栓金具本体を鋳造し、
該鋳造品をそれより一回り大きなキャビティーを有する
射出成形型にセットして合成樹脂の射ａ成形を行い、鋳
造品外表面にこれを覆って合成樹脂層を一体に成形する
ものである。(Means for Solving the Problems) In order to achieve the above object, in the method for manufacturing a faucet fitting of the present invention, a faucet fitting main body of a size that does not have a polishing allowance is cast,
The cast product is set in an injection mold having a cavity slightly larger than the mold, injection molding of synthetic resin is performed, and a synthetic resin layer is integrally molded on the outer surface of the cast product to cover it.
（作 用）
以上のように構成した水栓金具の製造方法によれば、鋳
造した水栓金具本体の表面にこれを覆って成形型のキャ
ビティ間隙に相当する比較的厚肉で任意厚さの合成樹脂
層が一体に形成されるので、鋳造品表面を研磨加工する
必要がない。(Function) According to the method for manufacturing a faucet fitting constructed as described above, the surface of the cast faucet fitting body is covered with a relatively thick and arbitrary thickness corresponding to the cavity gap of the mold. Since the synthetic resin layer is integrally formed, there is no need to polish the surface of the cast product.
（実施例）
以下、本発明方法の実施の一例を工程に従って説明する
。(Example) Hereinafter, an example of implementing the method of the present invention will be explained according to the steps.
先ず黄銅等の金属を常法に従って鋳造し、水栓金具（湯
水混合栓など）本体の鋳造品（１）を得る。First, a metal such as brass is cast according to a conventional method to obtain a cast product (1) of the main body of a faucet fitting (hot water mixer faucet, etc.).
上記水栓金具本体の鋳造品（１）は湯、水導入用脚管の
接続部（図示せず）、スピンドルの挿着部（１１）等必
要箇所にバイト（４）により穴開は加工を施したり、ね
じ加工を施す等通常の機械加工を加える。The cast product (1) of the faucet fitting main body is made by drilling holes with a cutting tool (4) at necessary locations such as the connecting part of the leg pipe for hot water and water introduction (not shown), and the insertion part of the spindle (11). Ordinary machining such as threading or threading is added.
この際、鋳造品（１）の表面に研磨加工を施すことは必
要ではないが、ショツトブラスト又は酸に浸漬する等の
表面処理を施すこと自体は任意である。At this time, it is not necessary to polish the surface of the cast product (1), but surface treatment such as shot blasting or immersion in acid is optional.
尚、研磨加工を行なわないので、上記鋳造品（１）には
研磨代を設ける必要はない。Note that since no polishing is performed, there is no need to provide a polishing allowance for the cast product (1).
次に、上記水栓金具本体の鋳造品（１）を第２図に示す
ように射出成形型（２）内にセットし、続いて第３図に
示すように上記射出成形型（２）内に所望の合成樹脂材
料（５）を射出して、鋳造品（１）の表面に、これを覆
う合成樹脂層（３）を一体に成形する。Next, the cast product (1) of the faucet fitting body is set in the injection mold (2) as shown in Figure 2, and then placed in the injection mold (2) as shown in Figure 3. A desired synthetic resin material (5) is injected to integrally form a synthetic resin layer (3) covering the surface of the cast product (1).
この際、鋳造品（１）に内設した流路（１２）内に合成
樹脂材料（５）が流入しないようにスピンドル挿着部（
ＩＩ） 、吐８管接続部（１３） 、脚管接続部等の所
要の穴はマスキング（６）する。At this time, the spindle insertion part (
II) Required holes such as the discharge 8 pipe connection part (13) and the leg pipe connection part are masked (6).
上記射出成形型（２）は複数に分割可能な割型に構成さ
れ、型組みした状態で鋳造品（１）より一回り大きな、
具体的には該鋳造品（１）表面に得ようとする合成樹脂
層（３）の厚さに相当する分だけ大きなキャビティー（
２１）を有しており、このキャビティー（２１）内に上
記鋳造品（１）をセット後、型（２）とセットした鋳造
品（１）との間隙に合成樹脂材料（５）をゲート（２２
）より注入する。The injection mold (2) is configured as a split mold that can be divided into a plurality of parts, and when assembled, is one size larger than the cast product (1).
Specifically, a cavity (
21), and after setting the casting (1) in this cavity (21), a synthetic resin material (5) is gated into the gap between the mold (2) and the set casting (1). (22
).
上記合成樹脂材料（５）は、所望の色に着色したものを
用いるが、型（２）とセットされた水栓金具本体鋳造品
（１）間の樹脂の流動性、鋳造品（１）への接着性、質
感等により最適なものが選定されるべきである。The synthetic resin material (5) is colored in a desired color, but the fluidity of the resin between the mold (2) and the cast faucet fitting body (1) set, The most suitable one should be selected depending on the adhesion, texture, etc.
尚、上記射出成形型（２）には必要によってその成形面
に所望の模様を入れることが任意である。Incidentally, the injection mold (2) may optionally have a desired pattern on its molding surface, if necessary.
次に上記注入した合成樹脂材料（５）の硬化を待ち、硬
化後型開きし脱型して製品の水栓金具本体（Ａ）を得る
。Next, the injected synthetic resin material (5) is allowed to harden, and after hardening, the mold is opened and demolded to obtain a faucet fitting body (A) as a product.
得られた製品の水栓金具本体（Ａ）は鋳造品（１）の表
面にこれを覆って合成樹脂層（３）が一体に被着成形さ
れている。The faucet fitting main body (A) of the obtained product has a synthetic resin layer (3) integrally molded on the surface of the cast product (1) so as to cover it.
以上のようにして製造された製品の水栓金具本体（Ａ）
は、第５図に示すように湯、水導入用の脚管（７）、ス
ピンドル（８）、ハンドル（９）、吐出管（１０）等を
組み付けて最終的な水栓器具製品（Ｂ）とされるが、吐
出管（１０）等にも上記本体（Ａ）と同様の方法で表面
に合成樹脂層（３）を一体に成形しても良い。Faucet fitting body (A) of the product manufactured as above
As shown in Figure 5, the final faucet equipment product (B) is assembled by assembling hot water, a leg pipe (7) for introducing water, a spindle (8), a handle (9), a discharge pipe (10), etc. However, the synthetic resin layer (3) may be integrally formed on the surface of the discharge pipe (10) etc. in the same manner as the main body (A).
（効 果）
本発明は上記の構成であるから以下のような効果を奏す
る。(Effects) Since the present invention has the above configuration, it has the following effects.
（１）鋳造した水栓金具本体を射出成形型にセットして
合成樹脂の射出成形を行い、鋳造品表面にこれを覆う合
成樹脂層を一体に成形するので、鋳造品を研磨加工する
必要がない。従って（ａ）静電塗装により合成樹脂被膜
を形成するものに比べて工程数が減少し、生産性が向上
する。(1) The cast faucet fitting body is set in an injection mold and injection molded with synthetic resin, and a synthetic resin layer covering this is integrally molded on the surface of the cast product, so there is no need to polish the cast product. do not have. Therefore, compared to (a) forming a synthetic resin film by electrostatic coating, the number of steps is reduced and productivity is improved.
（ｂ）鋳造品に研磨代を設ける必要がなく、材料の削減
を図ることができる。(b) There is no need to provide a polishing allowance for the cast product, and the amount of materials can be reduced.
（Ｃ）研磨工程による不良発生がないため歩留りが向上
する。(C) Yield is improved because no defects occur during the polishing process.
（２）鋳造品の表面に射出成形により合成樹脂層を成形
するので、合成樹脂層は射出成形型に色々の模様を設け
ることにより表面に模様を表出させたり、鋳造品の形態
に拘束されずに任意の形状に成形することが可能であり
、従来の水栓金具の形態にとられれない斬新なデザイン
の製品を製造することができる。(2) Since the synthetic resin layer is molded on the surface of the cast product by injection molding, the synthetic resin layer can be made to express patterns on the surface by providing various patterns on the injection mold, or be constrained by the form of the cast product. It is possible to mold the product into any shape without any modification, and it is possible to manufacture products with innovative designs that do not take the form of conventional faucet fittings.
（３）な内部構造が複雑な水栓金具本体は比較的成形の
しやすい鋳造品とし、鋳造品表面に設ける合成樹脂層は
鋳造品をインサートした射出成形により成形するように
したので、断熱化を図った、装飾性のある水栓金具を効
率よく製造することが可能となる。(3) The main body of the faucet, which has a complex internal structure, is a cast product that is relatively easy to mold, and the synthetic resin layer provided on the surface of the cast product is molded by injection molding with the cast product inserted, so it is heat insulating. It becomes possible to efficiently manufacture decorative faucet fittings that aim to achieve this.
第１図乃至第４図は本発明水栓金具の製造方法を工程に
従って模式的に示す説明図で一部切欠して示しである。
第５図は本発明によって製造した水栓金具本体を用いた
水栓器具の正面図で要部を一部切欠して示しである。
：水栓金具本体の鋳造品
：射出成形型
二合成樹脂層
：キャビテイー
（Ａ）
：製品の水栓金具本体
特
許
出
願
人
東陶機器株式会社
第
図
第
図
第
図
第
図FIGS. 1 to 4 are explanatory diagrams schematically showing the manufacturing method of the faucet fitting of the present invention according to the steps, with some parts cut away. FIG. 5 is a front view of a faucet appliance using the faucet metal body manufactured according to the present invention, with the main parts partially cut away. : Cast product of the faucet fitting body: Injection mold two synthetic resin layers: Cavity (A) : Product faucet fitting body Patent applicant: Toto Kiki Co., Ltd. Figure Figure Figure Figure
Claims (1)
り大きなキャビティー（２１）を有する射出成形型（２
）にセットして合成樹脂の射出成形を行い、鋳造品（１
）外表面に、これを覆って合成樹脂層（３）を一体に成
形することを特徴とする水栓金具の製造方法。The faucet fitting body is cast, and the cast product (1) is placed in an injection mold (2) having a cavity (21) slightly larger than the cast product (1).
), injection molding of synthetic resin is performed, and a cast product (1
) A method for manufacturing a faucet fitting, which comprises integrally molding a synthetic resin layer (3) on the outer surface and covering the outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26909690A JPH04144725A (en) | 1990-10-05 | 1990-10-05 | Manufacture of faucet fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26909690A JPH04144725A (en) | 1990-10-05 | 1990-10-05 | Manufacture of faucet fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04144725A true JPH04144725A (en) | 1992-05-19 |
Family
ID=17467622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26909690A Pending JPH04144725A (en) | 1990-10-05 | 1990-10-05 | Manufacture of faucet fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04144725A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000248357A (en) * | 1999-03-01 | 2000-09-12 | Moen Inc | Corrosion resistant and wear resistant decorative coating |
| KR100322028B1 (en) * | 1999-06-15 | 2002-02-06 | 신원식 | Process And Appartus Using Plug Valve For Teflon Sleeve Making |
| CN106151674A (en) * | 2015-04-03 | 2016-11-23 | 邝华景 | The environmental protection bathroom faucet of a kind of embedding pipe casing and processing method |
-
1990
- 1990-10-05 JP JP26909690A patent/JPH04144725A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000248357A (en) * | 1999-03-01 | 2000-09-12 | Moen Inc | Corrosion resistant and wear resistant decorative coating |
| KR100322028B1 (en) * | 1999-06-15 | 2002-02-06 | 신원식 | Process And Appartus Using Plug Valve For Teflon Sleeve Making |
| CN106151674A (en) * | 2015-04-03 | 2016-11-23 | 邝华景 | The environmental protection bathroom faucet of a kind of embedding pipe casing and processing method |
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