JPS6038811B2 - Manufacturing method of anti-water running cable - Google Patents
Manufacturing method of anti-water running cableInfo
- Publication number
- JPS6038811B2 JPS6038811B2 JP11613378A JP11613378A JPS6038811B2 JP S6038811 B2 JPS6038811 B2 JP S6038811B2 JP 11613378 A JP11613378 A JP 11613378A JP 11613378 A JP11613378 A JP 11613378A JP S6038811 B2 JPS6038811 B2 JP S6038811B2
- Authority
- JP
- Japan
- Prior art keywords
- compound
- water running
- semi
- cable
- pump
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title description 17
- 238000004519 manufacturing process Methods 0.000 title description 4
- 150000001875 compounds Chemical class 0.000 claims description 29
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 230000002265 prevention Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Landscapes
- Manufacturing Of Electric Cables (AREA)
Description
【発明の詳細な説明】
この発明は熔融状態のコンパウンドを熱交換器へ送し、
熱交換器によってコンパウンドを冷却して半熔融状態と
し、扇型塗布ノズルより縦添テープ上に半熔融状態のコ
ンパウンドを均一に塗布し、ついで塗布した縦添テープ
にケーブルを供給するとを特徴とする走水型ケーブルの
製造方法に関する。[Detailed description of the invention] This invention sends a compound in a molten state to a heat exchanger,
The compound is cooled to a semi-molten state by a heat exchanger, the semi-molten compound is uniformly applied onto the vertically applied tape from a fan-shaped application nozzle, and then a cable is supplied to the applied vertically applied tape. The present invention relates to a method for manufacturing a water running cable.
通信ケーブルにおいては、走水防止コンパウンドを芯線
間に封入した走水防止型ケーブルが増加しつつある。In communication cables, the number of anti-water running cables in which an anti-water running compound is sealed between the core wires is increasing.
走水防止型ケーブルの製造はコンパウンド入装置により
ケーブル内部までコンパウンドを圧入し、押出機により
シース押出する方式が広く採用されている。A widely used method for manufacturing anti-water running cables is to press-fit the compound into the inside of the cable using a compound injection device, and then extrude the sheath using an extruder.
しかしながら、圧入装置より押出機入口までの間にコン
パウンドが若干流れ落ちそのまま押出しても完全な走水
防止が期待されない。However, some of the compound may flow down between the press-fitting device and the extruder inlet, and even if the compound is extruded as it is, complete prevention of water running cannot be expected.
そこでより完全な走水防止効果を得るため押出の寸前で
半熔融状態のコンパウンドを再び塗布している。従来は
半熔融状態のコンパウンドを内に有した容器中にケーブ
ル通過させていたが、ケーブル通過部に穴があいてしま
い、コンパウンド塗布が充分に行われないという欠点が
あった。この発明は、半熔融状態のコンパウンドを塗布
したテープをケーブルコア外周に縦添えすることにより
、走水防止果を向上した走水防止型ケーブルを実現でき
る製造方法を提供するものである。この発明の方法を添
付図面にしたがって説明する。Therefore, in order to obtain a more complete water running prevention effect, a semi-molten compound is reapplied just before extrusion. Conventionally, a cable was passed through a container containing a compound in a semi-molten state, but this had the drawback that a hole was formed in the cable passage section, and the compound could not be applied sufficiently. This invention provides a manufacturing method that can realize a water running prevention type cable with improved water running prevention effect by longitudinally attaching a tape coated with a compound in a semi-molten state to the outer periphery of the cable core. The method of this invention will be explained with reference to the accompanying drawings.
１はコンパウンドを液体の状態で（約８０ｑ０）貯蔵す
るタンクである。1 is a tank that stores the compound in a liquid state (approximately 80q0).
２はポンプであって、一般の液体用ポンプが使用でき、
例えばギャポンプ、スクリューポンプ等の連続一吐出の
ポンプが使用される４半熔融状態のコンパウンドを圧送
するのにラム式ポンプが使用されているのが、この方法
では流量が変化する欠点ある）。2 is a pump, and a general liquid pump can be used.
For example, a continuous discharge pump such as a gas pump or a screw pump is used.A ram pump is used to pump the semi-molten compound, but this method has the disadvantage that the flow rate varies).
３は温水冷却器で温水温度は４０〜４６０が最適であり
、約２０００程度の水で冷却したのではコンパウンドが
固化するか、又はパイプ内面にコンパウンドの断熱層が
形成され、熱交換が行われなくなってしまう。3 is a hot water cooler, and the optimal hot water temperature is 40 to 460 degrees Celsius. If you cool it with water at about 2000 degrees Celsius, the compound will solidify, or a heat insulating layer of the compound will be formed on the inner surface of the pipe, and heat exchange will take place. It's gone.
４は流量調整バルブで塗布量を調整する。4 adjusts the coating amount with a flow rate adjustment valve.
５は塗布ノズルであって、テープ中全体に亘り均一の厚
さにコンパウンドを塗布する。Reference numeral 5 denotes a coating nozzle which applies the compound to a uniform thickness throughout the tape.
ポンプ２によってタンクーより圧送された約８０℃のコ
ンパウンドは温水冷却器３によって冷却されて約４０〜
４５００の半熔融状態になる。The compound at about 80°C is pumped from the tank by pump 2 and is cooled by hot water cooler 3 to about 40°C.
4,500 to a semi-molten state.
この場合に、温水の温度を特に３５〜４０ｑ０にするこ
とによって４０〜４５００の半熔融状態コンパウンドを
得ることができるが、２０ｑｏ程度の水で冷却すると、
パイプ内のコンパウンドは全部固化するか、パイプ内面
に固着化したコンパウンド断熱層により殆んど熱交換さ
れず、熱いコンパウンドが流出する。また、ポンプは液
体用ポンプが使用でき、連続的かつ均一に流量を制御す
ることができる。４ば流量調整パルプであって、このパ
ルプによってコンパウンドの流量を適正に調整し、目的
の塗布厚さに塗布することができる。In this case, a semi-molten compound of 40 to 4500 can be obtained by setting the temperature of the hot water to 35 to 40 qO, but if it is cooled with water of about 20 qO,
Either all of the compound inside the pipe solidifies, or there is little heat exchange due to the compound insulation layer that is fixed to the inner surface of the pipe, and the hot compound flows out. Further, a liquid pump can be used as the pump, and the flow rate can be controlled continuously and uniformly. 4 is a flow rate adjusting pulp, which allows the flow rate of the compound to be adjusted appropriately and the compound to be applied to a desired coating thickness.
５は塗布ノズルであって、扇状をしている。5 is a coating nozzle, which is fan-shaped.
このノズルによれば、テープ全体に亘り均一の厚さ１こ
塗布することができる。以上説明してきた通り、本発明
によれば半熔融状態のコンパウンドを均一に塗布した縦
添えテープの使用により走水防止効果の向上したケーブ
ル得ることができるようになる。According to this nozzle, it is possible to apply one coat to a uniform thickness over the entire tape. As explained above, according to the present invention, it is possible to obtain a cable with improved water running prevention effect by using a vertically attached tape to which a compound in a semi-molten state is evenly applied.
また、半溶融コンパウンドの縦添えテープへの塗布も均
一に行われる。Further, the application of the semi-molten compound to the vertically attached tape is also uniformly performed.
添付図面は本発明の一実施例の説明図である。
１・・・・・・タンク、２・・・・・・ポンプ、３・・
・・・・温水冷却器、４・・・・・・流量調節パルプ、
５・・・・・・塗布ノズル、６・・…・縦添テープ。The accompanying drawings are explanatory diagrams of one embodiment of the present invention. 1...Tank, 2...Pump, 3...
...Hot water cooler, 4...Flow rate adjustment pulp,
5... Application nozzle, 6... Vertical tape.
Claims (1)
し、熱交換器によつてコンパウンドを冷却して半熔融状
態とし、扇型塗布ノズルより縦添テープ上に熔融状態の
コンパウンドを均一に塗布し、ついで塗布した縦添テー
プにケーブルを供給することを特徴とする走水防止型ケ
ーブルの製造方法。1. Pump the molten compound to a heat exchanger, cool the compound to a semi-molten state, and uniformly apply the molten compound onto the vertically applied tape using a fan-shaped coating nozzle. , and then supplying the cable to the applied longitudinal tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11613378A JPS6038811B2 (en) | 1978-09-21 | 1978-09-21 | Manufacturing method of anti-water running cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11613378A JPS6038811B2 (en) | 1978-09-21 | 1978-09-21 | Manufacturing method of anti-water running cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5543735A JPS5543735A (en) | 1980-03-27 |
| JPS6038811B2 true JPS6038811B2 (en) | 1985-09-03 |
Family
ID=14679529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11613378A Expired JPS6038811B2 (en) | 1978-09-21 | 1978-09-21 | Manufacturing method of anti-water running cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6038811B2 (en) |
-
1978
- 1978-09-21 JP JP11613378A patent/JPS6038811B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5543735A (en) | 1980-03-27 |
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