JPH0546268B2 - - Google Patents
Info
- Publication number
- JPH0546268B2 JPH0546268B2 JP4596887A JP4596887A JPH0546268B2 JP H0546268 B2 JPH0546268 B2 JP H0546268B2 JP 4596887 A JP4596887 A JP 4596887A JP 4596887 A JP4596887 A JP 4596887A JP H0546268 B2 JPH0546268 B2 JP H0546268B2
- Authority
- JP
- Japan
- Prior art keywords
- compound
- tank
- heating
- cable
- moisture
- 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
- 150000001875 compounds Chemical class 0.000 claims description 60
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Coating Apparatus (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は通信ケーブル等に防湿コンパウンドを
施す塗布装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a coating device for applying a moisture-proof compound to communication cables and the like.
（従来技術）
プラスチツク絶縁通信ケーブルにおいて対撚又
は星撚された絶縁線心を集合し、プラスチツクテ
ープで押え巻き等を施して内部シースを押出成形
し、その上にアルミテープをしわ付け縦添えして
遮蔽層とし、その表面に防湿コンパウンド（以
下、コンパウンドという）を塗布し、更にその上
に外被を施すケーブルがある。(Prior art) Pair-twisted or star-twisted insulated wire cores are assembled in a plastic insulated communication cable, wrapped with plastic tape, extruded to form an inner sheath, and then crumpled with aluminum tape and attached vertically. There is a cable in which a moisture-proof compound (hereinafter referred to as "compound") is applied to the surface of the shielding layer, and then an outer sheath is applied on top of that.
このプラスチツク絶縁通信ケーブルの遮蔽層に
コンパウンドを塗布するに当つては、前記遮蔽層
の縦添え重ね合せ部から内部にコンパウンドが入
らないようにする必要がある。 When applying a compound to the shielding layer of this plastic insulated communication cable, it is necessary to prevent the compound from entering the interior through the vertically stacked portions of the shielding layer.
しかし、プラスチツク外被を押出成形するとき
その前段で、遮蔽層上に塗布されたコンパウンド
が外被を成形する際の熱と圧力によつて、しわ付
き遮蔽層周上に拡がり、逃げ場を失つたコンパウ
ンドは前記遮蔽層の重ね合せ部から内部に浸入す
る。従つて上記のようなことにならないようにす
るために、コンパウンドをしわ付き遮蔽層上に塗
布する際に、重ね合せ部近傍には塗布せず外被を
押出成形するときの熱と圧力で前記塗布されたコ
ンパウンドを延して、遮蔽層の全周面に過不足な
く塗布するようにする。 However, when extruding the plastic jacket, the compound applied on the shielding layer spreads around the wrinkled shielding layer due to the heat and pressure during molding the jacket, and has no place to escape. The compound penetrates into the interior through the overlap of the shielding layers. Therefore, in order to avoid the above problem, when applying the compound on the wrinkled shielding layer, do not apply it near the overlapping part, and the heat and pressure when extruding the outer cover will cause the compound to be applied to the wrinkled shielding layer. Spread the applied compound so that it is applied evenly over the entire circumferential surface of the shielding layer.
ところで、遮蔽層上に塗布したコンパウンドが
外被の押出成形時に受ける熱と圧力で、どのよう
な広がり方をするかを調べた結果、しわ付きアル
ミテープの縦添え重ね合せ部の上面方向には決し
て広がらず、重ね合せ部の下面方向によく広が
り、しかも塗布量がおおすぎると前記のように重
ね合せ部から内部に浸入することが判つた。 By the way, as a result of investigating how the compound applied on the shielding layer spreads due to the heat and pressure received during extrusion molding of the outer cover, it was found that in the upper surface direction of the vertically stacked part of the wrinkled aluminum tape, It was found that it did not spread at all, but spread well toward the lower surface of the overlapped portion, and that if the applied amount was too large, it would seep into the interior from the overlapped portion as described above.
（発明の目的）
本発明は、上記知見にもとづき塗布するコンパ
ウンドがしわ付きアルミ遮蔽層の重ね合せ部から
内部に浸入せず、且つ均一に塗布するための装置
を提供することを目的とするものである。(Object of the Invention) Based on the above findings, the present invention aims to provide an apparatus for uniformly applying a compound without infiltrating the inside from the overlapped portion of wrinkled aluminum shielding layers. It is.
（発明の目的達成のための手段）
コンパウンドの加熱保温槽と、この加熱保温槽
中の溶融コンパウンドを後述するコンパウンド塗
布槽に供給する手段と、前記コンパウンド加熱保
温槽から上方に延びる腕により、該加熱保温槽の
上部に昇降固定自在に吊架した塗布槽であつて、
その内部上手で且つ走行ケーブルからはなれた位
置に値設したピンを軸に可回動に取付けられたコ
ンパウンドの寄板と、この寄板の自由端を移動固
定する手段とを設けられてあることを特徴とする
ものである。(Means for Achieving the Object of the Invention) A compound heating and insulating tank, a means for supplying the molten compound in the heating and insulating tank to a compound coating tank to be described later, and an arm extending upward from the compound heating and insulating tank The coating tank is suspended above the heating and heat-insulating tank so that it can be raised and lowered,
It is provided with a compound panel board rotatably attached around a pin set at the top of the interior and away from the running cable, and means for moving and fixing the free end of this panel board. It is characterized by:
（実施例）
次に、本発明の実施例を図面と共に説明する。
１は防湿コンパウンドの加熱保温槽、２は防湿コ
ンパウンドの塗布槽である。塗布槽２は、防湿コ
ンパウンド加熱保温槽１の側板から延びる腕３と
ボルトナツト４により防湿コンパウンド加熱保温
槽１上に昇降固定可能に吊架され、その両端にＵ
字型溢溝１６を設け、その内側でケーブル進行の
上手にはピン５を２本植設し、このピン５に寄板
６が可回動に取付けられ、その自由端は寄板６に
設けられたピン７に、長孔８を穿設した調節稈９
が揺動可能に嵌合してあり、前記長孔８には塗布
槽２の側板に植設された立込みネジ１０が貫貫通
し、この立込みネジ１０に座金１１を介して蝶ネ
ジ１２が螺合している。(Example) Next, an example of the present invention will be described with reference to the drawings.
Reference numeral 1 is a heating and insulating tank for moisture-proofing compound, and 2 is a coating tank for moisture-proofing compound. The coating tank 2 is suspended above the moisture-proof compound heating and heat-insulating tank 1 by arms 3 and bolt nuts 4 extending from the side plate of the moisture-proof compound heating and heat-insulating tank 1 so that it can be raised and lowered.
A character-shaped overflow groove 16 is provided, and two pins 5 are installed inside the groove 16 on the upper side of the cable progression, and a pontoon 6 is rotatably attached to the pin 5. An adjustment culm 9 in which a long hole 8 is bored in the pin 7
A vertical screw 10 installed in the side plate of the coating tank 2 passes through the elongated hole 8, and a thumbscrew 12 is inserted into the vertical screw 10 via a washer 11. are screwed together.
１３はコンパウンドの供給管で、図示しないが
公知のポンプによつてコンパウンド加熱保温槽１
中のコンパウンドが走行ケーブル１４と寄板６の
上手との間に供給される。 Reference numeral 13 denotes a compound supply pipe, which is heated by a well-known pump (not shown) into the compound heating and heat-insulating tank 1.
The compound inside is supplied between the running cable 14 and the top of the board 6.
１５は走行ケーブル１４の下部に塗布されたコ
ンパウンドをケーブルの遮蔽層周上にのばし、余
分なコンパウンドを絞り取る絞りダイスである。
なお、絞りダイス１５はゴム又はプラスチツクの
耐油性・耐磨耗性の弾性体からなり、その内面形
状は第５図に示す如く、遮蔽層の重ね合せ上面方
向にコンパウンドが延びるようにし、反対方向に
はコンパウンドの延びが所定の位置でとまるよう
に、内面が扇形ラセン状に刳り取られている。 15 is a drawing die that spreads the compound applied to the lower part of the running cable 14 over the circumference of the shielding layer of the cable and squeezes out the excess compound.
The drawing die 15 is made of an oil-resistant and abrasion-resistant elastic body made of rubber or plastic, and its inner surface shape is such that the compound extends in the direction of the upper surface of the overlapping shielding layer and in the opposite direction, as shown in FIG. The inner surface is hollowed out in a fan-shaped spiral shape so that the extension of the compound stops at a predetermined position.
次に、本発明に係る防湿コンパウンド塗布装置
によるコンパウンド塗布作業をその手順にもとづ
いて説明する。 Next, a compound application operation using the moisture-proof compound application apparatus according to the present invention will be explained based on its procedure.
作業を開始するに当り防湿コンパウンド加熱保
温槽１のヒーターの電源を入れ、コンパウンドを
所望の温度に加熱保温し、所望の粘度になるよう
にする。コンパウンドが加熱され、粘度が低くな
ると、図示しないが、ポンプを作動させてコンパ
ウンド供給管１３から塗布槽２にコンパウンドを
供給循環させてコンパウンドの粘度が一様になる
ようにする。 Before starting the work, the heater in the moisture-proof compound heating and insulating tank 1 is turned on, and the compound is heated and kept at a desired temperature so that it has a desired viscosity. When the compound is heated and its viscosity decreases, a pump (not shown) is operated to supply and circulate the compound from the compound supply pipe 13 to the coating tank 2 so that the viscosity of the compound becomes uniform.
しかる後、ケーブル１４を塗布槽２に試通し、
塗布槽２を昇降調節用のボルトナツトを回して試
行ケーブルの下面がコンパウンドに接する程度に
する。次に試行ケーブルを外被する押出成形速度
と同じ程度の速さで走行させながら寄板６の自由
端と試行ケーブルとの間隙を蝶ネジ１２でもつて
調節する。この間隙の調節は、遮蔽層の重ね合せ
上面方向側を狭くし、反対側は拡くする。このよ
うに調節すると、走行する試行ケーブルによつて
粘度の高いコンパウンドは、走行方向に引き寄せ
られ寄板６の自由端に近づくにしたがつて、間隙
の挾い方はコンパウンドの液位が高くなり、拡い
方は高くならない。そして絞りダイス１５に試行
ケーブルを通過させると、試行ケーブルに付着し
たコンパウンドは絞りダイス１５のダイス内面に
形成された扇形のラセン状刳溝と試行ケーブルの
走行により揚力が働いて、遮蔽層の重ね合せ上面
方向に延び、重ね合せ下面方向には延びないで外
周の1/4〜1/3を残してコンパウンドが塗布され
る。 After that, the cable 14 is passed through the coating tank 2,
Turn the bolt and nut for raising and lowering the coating tank 2 until the lower surface of the trial cable is in contact with the compound. Next, the gap between the free end of the board 6 and the trial cable is adjusted using the thumbscrew 12 while running the trial cable at the same speed as the extrusion molding speed for sheathing. This gap is adjusted by narrowing the shielding layer on the side toward the top surface of the overlapping layer and widening it on the opposite side. With this adjustment, the compound with high viscosity is drawn in the running direction by the running trial cable, and as it approaches the free end of the board 6, the liquid level of the compound becomes higher in the gap. , the expansion is not high. When the trial cable is passed through the drawing die 15, the compound adhering to the trial cable is lifted by the fan-shaped spiral groove formed on the inner surface of the drawing die 15 and the running of the trial cable, and the shielding layer is overlapped. The compound is applied to the outer periphery, extending toward the top surface and not extending toward the bottom surface, leaving 1/4 to 1/3 of the outer periphery.
次いで、コンパウンドを塗布された試行ケーブ
ル上に外被が施されると、外被の押出成形時の熱
と圧力によつて、前記塗布されたコンパウンドは
延ばされて遮蔽層全周面に塗布される。外被を施
した試行ケーブルからサンプルを採取し、外被を
切開してコンパウンドの塗布付着状況をチエツク
し、過不足がある場合は寄板と走行するケーブル
との間隙が再調節する。かくしてコンパウンドが
良好に塗布されると、実ケーブルを走行させ、実
生産に入る。 Next, when a jacket is applied to the trial cable coated with the compound, the applied compound is stretched and coated on the entire circumference of the shielding layer by the heat and pressure during extrusion of the jacket. be done. A sample is taken from the test cable with the outer sheath, the outer sheath is cut open, and the status of the compound coating is checked. If there is an excess or deficiency, the gap between the panel and the running cable is readjusted. Once the compound is well applied, the actual cable is run and actual production begins.
（効果）
以上の如く、本発明に係る防湿コンパウンドの
塗布装置によれば、しわ付きアルミ遮蔽層の重ね
合せ部から内部にコンパウンドが浸入することも
なく、遮蔽層全周面に過不足なくコンパウンドが
塗布されるので、ケーブルの仕上りが良く、又ケ
ーブル工事の作業性が良好なものとなる。(Effects) As described above, according to the moisture-proof compound coating device according to the present invention, the compound does not infiltrate into the interior from the overlapped portion of the wrinkled aluminum shielding layer, and the compound is applied to the entire circumferential surface of the shielding layer without excess or deficiency. is applied, the cable has a good finish and the workability of the cable work is also good.
第１図は本発明に係る防湿コンパウンド塗布装
置の縦断正面図、第２図は同要部であるコンパウ
ンド塗布槽の斜視図、第３図は本装置によつて生
産されるケーブルの横断面図、第４図は同しわ付
き遮蔽層の重ね合せ部の拡大図、第５図は絞りダ
イスであつて、Ａは正面図、Ｂはダイス内面の展
開図、ＣはＢ図のａ，ｂ，ｃ，ｄ，ｅ，ｆの断面
図、図中の符号は次の通りである。
１……防湿コンパウンド加熱保温槽、２……コ
ンパウンドの塗布槽、３……加熱保温槽の側板か
ら延びる腕、４……ボルトナツト、５……ピン、
６……寄板、７……寄板に設けたピン、８……長
孔、９……調節稈、１０……塗布槽側板に設けた
立込みネジ、１１……座金、１２……蝶ネジ、１
３……防湿コンパウンドの供給管、１４……走行
ケーブル、１５……絞りダイス、１５′……ダイ
スの入口径、１５″……ダイスの出口径、１６…
…Ｕ字型溢溝、１７……しわ付アルミ遮蔽層…
…、１８……縦添え重ね合せ部の上面、１９……
縦添え重ね合せ部の下面、２０……防湿コンパウ
ンド、２１……内部シース。
Fig. 1 is a longitudinal sectional front view of the moisture-proof compound coating device according to the present invention, Fig. 2 is a perspective view of the compound coating tank which is the main part of the device, and Fig. 3 is a cross-sectional view of a cable produced by this device. , FIG. 4 is an enlarged view of the overlapping portion of the same wrinkled shielding layer, and FIG. 5 is a drawing die, where A is a front view, B is a developed view of the inner surface of the die, and C is a, b of FIG. The cross-sectional views of c, d, e, and f, and the symbols in the figures are as follows. 1... Moisture-proof compound heating and insulation tank, 2... Compound application tank, 3... Arm extending from the side plate of the heating and insulation tank, 4... Bolt nut, 5... Pin,
6...Piece board, 7...Pin provided on the board, 8...Elongated hole, 9...Adjustment culm, 10...Standing screw provided on the side plate of the coating tank, 11...Washer, 12...Butterfly screw, 1
3... Moisture-proof compound supply pipe, 14... Running cable, 15... Drawing die, 15'... Inlet diameter of die, 15''... Outlet diameter of die, 16...
...U-shaped overflow groove, 17...Wrinkled aluminum shielding layer...
..., 18...Top surface of vertically stacked part, 19...
Lower surface of vertically stacked portion, 20...moisture-proof compound, 21...inner sheath.
Claims (1)
保温槽中の溶融コンパウンドを後述するコンパウ
ンド塗布槽に供給する手段と、前記コンパウンド
加熱保温槽から上方に延びる腕により、該加熱保
温槽の上部に昇降固定自在に吊架した塗布槽であ
つて、その内部上手で且つ走行ケーブルからはな
れた位置に植設したピンを軸に可回動に取付けら
れたコンパウンドの寄板と、この寄板の自由端を
移動固定する手段とが設けられて成ることを特徴
とする防湿コンパウンドの塗布装置。1 A heating and insulating tank for a moisture-proof compound, a means for supplying the molten compound in this heating and insulating tank to a compound application tank (to be described later), and an arm extending upward from the compound heating and insulating tank to be raised and lowered and fixed to the upper part of the heating and insulating tank. It is a freely suspended coating tank, with a compound panel that is rotatably attached around a pin installed at the top of the interior and at a position away from the running cable, and a free end of this panel. 1. A moisture-proof compound application device, characterized in that it is provided with means for moving and fixing it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4596887A JPS63214368A (en) | 1987-02-28 | 1987-02-28 | Apparatus for applying moistureproof compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4596887A JPS63214368A (en) | 1987-02-28 | 1987-02-28 | Apparatus for applying moistureproof compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63214368A JPS63214368A (en) | 1988-09-07 |
| JPH0546268B2 true JPH0546268B2 (en) | 1993-07-13 |
Family
ID=12734030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4596887A Granted JPS63214368A (en) | 1987-02-28 | 1987-02-28 | Apparatus for applying moistureproof compound |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63214368A (en) |
-
1987
- 1987-02-28 JP JP4596887A patent/JPS63214368A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63214368A (en) | 1988-09-07 |
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