JPH02299415A - Cable head moulding of joint for rubber-plastic insulated cable - Google Patents
Cable head moulding of joint for rubber-plastic insulated cableInfo
- Publication number
- JPH02299415A JPH02299415A JP11935289A JP11935289A JPH02299415A JP H02299415 A JPH02299415 A JP H02299415A JP 11935289 A JP11935289 A JP 11935289A JP 11935289 A JP11935289 A JP 11935289A JP H02299415 A JPH02299415 A JP H02299415A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- rubber
- epoxy resin
- plastic insulated
- molded
- 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
- 239000004033 plastic Substances 0.000 title claims description 16
- 238000000465 moulding Methods 0.000 title description 7
- 239000003822 epoxy resin Substances 0.000 claims description 20
- 229920000647 polyepoxide Polymers 0.000 claims description 20
- 238000005266 casting Methods 0.000 claims description 10
- 239000012212 insulator Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000004020 conductor Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003566 sealing material Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010125 resin casting Methods 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は ゴム・プラスチック絶縁電線の接続部、詳
しくは成形型ケーブルヘッドの成形方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a connecting portion of a rubber/plastic insulated wire, and more particularly to a method for forming a molded cable head.
Ｃ従来の技術〕
ゴム・プラスチック絶縁電線の接続に使用されるケーブ
ルヘッドとして、絶縁物を注型用ケーシングに充填して
成形するものが知られている。C. Prior Art] As a cable head used for connecting rubber/plastic insulated wires, one is known in which a casting casing is filled with an insulating material and then molded.
以下、第２図を参照して、このゴム・プラスチック絶縁
電線用接続部のケーブルヘッドの成形方法について説明
する。Hereinafter, with reference to FIG. 2, a method of molding the cable head of this rubber/plastic insulated wire connection section will be described.
ゴム・プラスチック絶縁電線の端部は、ケーブルシース
５８よびケーブル絶縁体４をそれぞれ段剥ぎしてケーブ
ル導体ｌを露出させる。そして、この段剥ぎしたケーブ
ル端部にエポキシ樹脂を注入充填するための注型用ケー
シング２を取り付ける。この注型用ケーシングは有底の
円柱形状のもので、先端の開口部２ａは小径となり、は
ぼケーブルシースを含めた外径と等しく形成されており
、底部部分（図では上面）はケーブル導体１およびエポ
キシ樹脂充填用の開口部２ｂが形成されている。そして
、ケーブルシース５との間をケーブルシール材６を被せ
て密閉する６
次に、このように取り付けられたケーブル端部の注型用
ケーシング２の注入口２ｂよりゴム・プラスチック絶縁
電線の導体ｌ、ケーブル絶縁体４とケーシング２の間に
エポキシ樹脂を充填する。At the end of the rubber/plastic insulated wire, the cable sheath 58 and the cable insulator 4 are peeled off in stages to expose the cable conductor 1. Then, a casting casing 2 for injecting and filling the epoxy resin is attached to the stripped end of the cable. This casting casing has a cylindrical shape with a bottom, the opening 2a at the tip has a small diameter, and is formed to be equal to the outer diameter including the cable sheath, and the bottom part (the top surface in the figure) is a cable conductor. 1 and an opening 2b for filling with epoxy resin are formed. Then, the gap between the cable sheath 5 and the cable sealing material 6 is covered and sealed 6 Next, the conductor l of the rubber/plastic insulated wire is inserted through the injection port 2b of the casting casing 2 at the end of the cable attached in this way. , epoxy resin is filled between the cable insulator 4 and the casing 2.
このとき、エポキシ樹脂内部に電気的に有害な発泡が生
じるのを防止するため、予め脱泡したエポキシ樹脂剤を
注入するようにしている。At this time, in order to prevent electrically harmful foaming from occurring inside the epoxy resin, a defoamed epoxy resin agent is injected in advance.
［発明が解決しようとする課題］
ところで、このような方法では、注型用ケーシング２に
充填後のエポキシ樹脂に対して完全な脱泡をすることが
不可能である。[Problems to be Solved by the Invention] By the way, in such a method, it is impossible to completely defoam the epoxy resin after filling the casting casing 2.
このような脱泡をするための対策としては、注型用ケー
シング２内を予め真空処理した後にエポキシ樹脂を充填
すれば良いが、この真空処理時において、ゴム・プラス
チック絶縁電線の絶縁体４と外部シース５の間から空気
が注型用ケーシング２内に継続的に侵入してしまう為、
規定の真空状態を保つことが不可能となっていた。As a countermeasure for such defoaming, the inside of the casting casing 2 may be vacuum treated beforehand and then filled with epoxy resin, but during this vacuum treatment, the insulator 4 of the rubber/plastic insulated wire Because air continuously enters into the casting casing 2 from between the outer sheath 5,
It had become impossible to maintain the specified vacuum state.
この発明は、このような点に鑑みてなされたもので、前
記した欠点を解消し、真空注入を可能にしたゴム・プラ
スチック絶縁電線用接続部のケーブルヘッドの成形方法
を提供することを目的とする。The present invention has been made in view of the above points, and an object thereof is to provide a method for molding a cable head of a connection portion for a rubber/plastic insulated wire, which eliminates the above-mentioned drawbacks and enables vacuum injection. do.
［実 施 例］
以下、図面に基づいてこの発明の詳細な説明する。第１
図は、ゴム・プラスチック絶縁電線用接続部の成形型ケ
ーブルヘッド接続部の成形方法を説明するための断面図
である。前述した従来例と同一部材には同一符号を付し
て説明する。[Example] Hereinafter, the present invention will be described in detail based on the drawings. 1st
The figure is a cross-sectional view for explaining a method of molding a molded cable head connection part of a rubber/plastic insulated wire connection part. The same members as in the conventional example described above will be described with the same reference numerals.
先ず、ゴム・プラスチック絶縁電線の端部のケーブルシ
ース５．ケーブル絶縁体４をそれぞれ段剥ぎしてケーブ
ル絶縁体４．ケーブル導体１を露出させる。次に、ケー
ブル絶縁体４とケーブルシース５の段剥ぎ部をシールす
るためエポキシ樹脂の１次成形部７を成形してシールす
る。この１次のエポキシ樹脂成形部７は、ゴム・プラス
チック電線内のガスをケーシング２′内に侵入させない
ためのもので、単なる簡易シールであって薄肉のもので
よい、そして、エポキシ樹脂注型用ケーシング２′を被
せ、その開口部８とケーブルシース５とをケーブルシー
ル材６を被せて密着する。First, the cable sheath at the end of the rubber/plastic insulated wire 5. The cable insulator 4 is peeled off in each step. Cable conductor 1 is exposed. Next, in order to seal the stepped peeled portions of the cable insulator 4 and the cable sheath 5, a primary molded portion 7 of epoxy resin is molded and sealed. This primary epoxy resin molded part 7 is to prevent the gas in the rubber/plastic electric wire from entering the casing 2', and may be a simple seal with a thin wall. A casing 2' is placed over the opening 8 of the casing 2', and a cable sealing material 6 is placed over the opening 8 of the casing 2' and the cable sheath 5 to bring them into close contact.
このように、取り付けられた注型用ケーシング２゛内に
注入口２ａを通して真空脱気処理を施してから電気絶縁
用エポキシ樹脂剤３を注入充填する。このエポキシ樹脂
剤３には高電界が加わるので、高真空状態でのエポキシ
樹脂を注入することが必要であるが、前述した第１次エ
ポキシ樹脂の１次シール７により空気が入りこむことが
ないので容易に真空下で注入成型することができる。In this way, the insulating epoxy resin 3 is injected and filled into the attached casting casing 2 after vacuum degassing is performed through the injection port 2a. Since a high electric field is applied to this epoxy resin agent 3, it is necessary to inject the epoxy resin in a high vacuum state, but the primary seal 7 of the primary epoxy resin mentioned above prevents air from entering. Can be easily injection molded under vacuum.
［発明の効果］
以上説明したように、この発明のゴム・プラスチック絶
縁電線用接続部のケーブルヘッド成形方法によれば、注
型用ケーシングに注入するエポキシ樹脂と同一材料で段
剥ぎしたケーブル絶縁体とケーブルシースの間を簡単な
１次シールを行なうだけで、ケーシング内を真空脱気を
行なうことができ、エポキシ樹脂を高真空状態で注入す
ることが可能となり、完全に脱泡した電気的に安定な品
質の接続部のケーブルヘッドを成形することができる。[Effects of the Invention] As explained above, according to the method for molding a cable head of a connection portion for a rubber/plastic insulated wire of the present invention, the cable insulator is made of the same material as the epoxy resin injected into the casting casing and is stripped in steps. By simply performing a simple primary seal between the cable sheath and the cable sheath, the inside of the casing can be vacuum degassed, making it possible to inject epoxy resin in a high vacuum state, creating a completely air-free electrical system. Cable heads with stable quality connections can be molded.
第１図は、この発明のケーブルヘッド成形方法を説明す
るための接続部の断面図、
第２図は、従来の成形型ケーブルヘッドの成形方法を示
す接続部の断面図である。
１・・・ケーブル導体
２．２′・・・エポキシ樹脂注型用ケーシング３・・・
注入エポキシ樹脂剤
４・・・ケーブル絶縁体
５・・・ケーブルシース
６・・・ケーシングシール部
７・・・ １次簡易シール
８・・・注入口FIG. 1 is a cross-sectional view of a connecting portion for explaining the cable head molding method of the present invention, and FIG. 2 is a cross-sectional view of a connecting portion for explaining a conventional cable head molding method. 1... Cable conductor 2.2'... Casing for epoxy resin casting 3...
Injected epoxy resin agent 4...Cable insulator 5...Cable sheath 6...Casing seal portion 7...Primary simple seal 8...Injection port
Claims (1)
ヘッドにおいて、 注型用ケーシングとゴム・プラスチック絶縁体との間に
エポキシ樹脂を注入して成形する作業の前に、段剥ぎし
たゴム・プラスチック絶縁電線のケーブルシースとケー
ブル絶縁体との間をエポキシ樹脂で１次シールし、次に
エポキシ樹脂を真空注型して成形したことを特徴とする
ゴム・プラスチック絶縁電線用接続部のケーブルヘッド
成形方法。[Claims] In a molded cable head for a connection part for rubber/plastic insulated wires, step stripping is performed before the epoxy resin is injected between the casting casing and the rubber/plastic insulator and molded. A joint for a rubber/plastic insulated wire, characterized in that the cable sheath and cable insulator of the rubber/plastic insulated wire are first sealed with epoxy resin, and then the epoxy resin is vacuum-cast and molded. cable head forming method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11935289A JPH02299415A (en) | 1989-05-12 | 1989-05-12 | Cable head moulding of joint for rubber-plastic insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11935289A JPH02299415A (en) | 1989-05-12 | 1989-05-12 | Cable head moulding of joint for rubber-plastic insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02299415A true JPH02299415A (en) | 1990-12-11 |
Family
ID=14759367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11935289A Pending JPH02299415A (en) | 1989-05-12 | 1989-05-12 | Cable head moulding of joint for rubber-plastic insulated cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02299415A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459326A (en) * | 2014-09-30 | 2016-04-06 | 日立金属株式会社 | Producing method for cable with resin mold |
-
1989
- 1989-05-12 JP JP11935289A patent/JPH02299415A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459326A (en) * | 2014-09-30 | 2016-04-06 | 日立金属株式会社 | Producing method for cable with resin mold |
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