JPS5994309A - Method of controlling coating layer for cable - Google Patents
Method of controlling coating layer for cableInfo
- Publication number
- JPS5994309A JPS5994309A JP57204116A JP20411682A JPS5994309A JP S5994309 A JPS5994309 A JP S5994309A JP 57204116 A JP57204116 A JP 57204116A JP 20411682 A JP20411682 A JP 20411682A JP S5994309 A JPS5994309 A JP S5994309A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- outer diameter
- coating layer
- cable
- thickness
- 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
- 239000011247 coating layer Substances 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 9
- 239000004020 conductor Substances 0.000 claims description 33
- 239000010410 layer Substances 0.000 description 14
- 238000001125 extrusion Methods 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 229920003020 cross-linked polyethylene Polymers 0.000 description 3
- 239000004703 cross-linked polyethylene Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 241000270708 Testudinidae Species 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- B29C47/92—
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processes Specially Adapted For Manufacturing Cables (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】 （発明の技術分野） 本発明は、ケーブルの被覆層厚制御方法に関する。[Detailed description of the invention] (Technical field of invention) The present invention relates to a cable coating thickness control method.
（発明の技術的背景）
ケーブルの製造における被覆工程においては、導体に押
出機により絶縁Ｎ５ｔ−押出被覆した後被覆層金含む外
径全測定し、この外径測定値と設定値と全比較して押出
機を制御し又は導体の走行速産金変化させ、ケーブルの
被覆層厚を制御している。(Technical Background of the Invention) In the coating process in the manufacture of cables, after the conductor is coated with insulation N5t by extrusion using an extruder, the entire outer diameter including the coating layer is measured, and this outer diameter measurement value is completely compared with the set value. The thickness of the cable coating layer is controlled by controlling the extruder or changing the running speed of the conductor.
（背景技術の問題点）
しかし、このように被覆後の外径を測定して押出機を制
御し又は導体走行速度を変化させるだけでは、導体の外
径を全く考慮していないことから、その後に送給されて
くる導体部分の径が大きい場合には当然被覆層を含む外
径が大きくなり、又径が小さい場合には外径が小さくな
ってし１い、従って線径の一定なケーブルを得ることが
困難である。(Problems with the background art) However, simply measuring the outer diameter after coating and controlling the extruder or changing the running speed of the conductor does not take the outer diameter of the conductor into consideration at all, so If the diameter of the conductor portion fed to the wire is large, the outer diameter including the coating layer will naturally be large, and if the diameter is small, the outer diameter will be small. is difficult to obtain.
（発明の目的）
本発明の目的は、導体径の変化に追従させて被覆層の厚
さを所望の値に変化させることができるケーブルの被覆
厚制御方法を提供することにある。(Object of the Invention) An object of the present invention is to provide a cable coating thickness control method that can change the thickness of the coating layer to a desired value in accordance with changes in the conductor diameter.
（発明の概ｇ〕
本発明は、ケーブル導体の外径を測定すると共に導体の
外径測定箇所に対応する被覆層の厚さを測定し、これら
両側定値に基づいて押出機全制御することを特徴とする
特
（発明の実施例）
以下、本発明の実施例を図面を参照して説明する。(Summary of the Invention g) The present invention measures the outer diameter of a cable conductor, measures the thickness of the coating layer corresponding to the location where the outer diameter of the conductor is measured, and controls the entire extruder based on the predetermined values of both. Characteristic Features (Embodiments of the Invention) Examples of the present invention will be described below with reference to the drawings.
図面には、本発明の方法を架橋ポリエチレン絶縁型カケ
ープル製造における３層同時押出工程に適用した例が示
されている。先ず、３層同時押出について説明すると、
一定線速で走行している導体１Ｆｉ、キャプスタン２全
通って一万の副押出機６にて内部半導電層が押出被覆さ
れ、次に主押出機４にて架橋ポリエチレン絶縁層が内部
半導電層上に押出被覆され、更に他方の副押出機５にて
その上に外部半導電層が押出被覆される。このようにし
て３層が同時に押出被覆された導体１は、高圧加流管６
に送り込１れで架橋され、冷却筒（図示せず）にて冷却
され巻取機によりケーブルとして巻取られる。The drawings show an example in which the method of the present invention is applied to a three-layer co-extrusion process in the production of cross-linked polyethylene insulated capaples. First, let me explain about three-layer coextrusion.
The conductor 1Fi running at a constant linear speed and the capstan 2 are extruded and coated with an internal semiconducting layer in a sub-extruder 6, and then a cross-linked polyethylene insulating layer is coated in the main extruder 4. The conductive layer is extrusion coated, and an external semiconductive layer is further extrusion coated thereon in the other sub-extruder 5. The conductor 1 coated with three layers at the same time in this way has a high-pressure flow tube 6
The cable is fed into the tube and cross-linked, cooled in a cooling cylinder (not shown), and wound up as a cable by a winder.
さて、本発明の方法は、導体１が押出被覆される前に、
この導体１の外径をレーザ測定器等の導体外径測定器７
によってディジタル的に読み取る。Now, in the method of the present invention, before the conductor 1 is extrusion coated,
The outer diameter of this conductor 1 is measured by a conductor outer diameter measuring device 7 such as a laser measuring device.
read digitally by
この導体１外径測定値は制御部８に送られる。次に、加
流管６の入口近傍に設けたソフトエックス線外径測定器
９と導体外径測定器７との距離ｔと導体１の線速■とが
制御部８に入力され、この制御部８にて導体１の外径測
定部分１ａがソフトエックス線外径測定器９に到達する
葦での遅れ時間ｔ カｔ ＝ Ｌ／Ｖ （赫ｃ） ＩＣ
ヨ９演算される。。This measured value of the outer diameter of the conductor 1 is sent to the control section 8. Next, the distance t between the soft X-ray outer diameter measuring device 9 and the conductor outer diameter measuring device 7 provided near the inlet of the flood tube 6 and the linear velocity of the conductor 1 are input to the control section 8. 8, the delay time t at which the outer diameter measuring portion 1a of the conductor 1 reaches the soft X-ray outer diameter measuring device 9 is
9 calculations are performed. .
ｅ
ソフトエックス線外径測定器９は、ン７トエックス線源
からソフトエックス線を被覆導体に照射し、導体１像と
被覆像を螢光板に写し、これらの像を撮像管を介して電
気信号に変換し、制御部８に送る。e The soft X-ray outer diameter measuring device 9 irradiates the coated conductor with soft X-rays from the X-ray source, records the conductor 1 image and the coating image on a fluorescent plate, and converts these images into electrical signals via the imaging tube. and sends it to the control section 8.
制御部８は画像処理回路金倉み、この画像処理回路にソ
フトエックス線外径測定器９からの電気信号に基づいて
導体１径に対する被覆層径、すなわちこれらの比を演算
する。The control unit 8 operates an image processing circuit called Kanakura, and calculates the diameter of the coating layer with respect to the diameter of the conductor 1, that is, the ratio thereof, based on the electrical signal from the soft X-ray outer diameter measuring device 9 to the image processing circuit.
ｉ方、導体外径測定器７で測定された導体外径値は、画
像処理回路のディジタルメモリに入力され、このメモリ
から前記遅れ時間を経過後に出力されて画像処理回路の
演算部にて前記導体１径と被覆層径の比に乗算される。On the other hand, the conductor outer diameter value measured by the conductor outer diameter measuring device 7 is input to the digital memory of the image processing circuit, and is outputted from this memory after the delay time has elapsed, and is processed by the arithmetic unit of the image processing circuit. It is multiplied by the ratio of the conductor 1 diameter and the coating layer diameter.
従って、導体１の外径測定部分１ａに対応する内外半導
を層及び絶縁層金倉む被覆厚が順次正確に算出される。Therefore, the coating thicknesses covering the inner and outer semiconductor layers and the insulating layers corresponding to the outer diameter measurement portion 1a of the conductor 1 are sequentially and accurately calculated.
ところで、３層同時押出しでは、内・外生導電層が極め
て薄く、絶縁層が厚い。そして、被覆層の外径変動の主
原因はこの絶縁層の厚さの変動による。従って、主押出
機４全制御することにより被覆層の厚さヲ変えることが
できる。By the way, in three-layer simultaneous extrusion, the internal and external conductive layers are extremely thin, and the insulating layer is thick. The main cause of variation in the outer diameter of the coating layer is variation in the thickness of the insulating layer. Therefore, the thickness of the coating layer can be changed by fully controlling the main extruder 4.
さて、制御部８は、導体１径の大きさに対応させて被偵
層厚全制御すべく設定され、主押出機４のスリＩ）ニー
回転数を制御する。従って、導体１の外径測定部分１ａ
に対応した被覆層厚を算出した後は主押出機４にスクリ
ーー回転数制御信号全出力し、主押出機４を制御する。Now, the control section 8 is set to control the total layer thickness in accordance with the size of the diameter of the conductor 1, and controls the number of rotations of the main extruder 4 at the knee. Therefore, the outer diameter measuring portion 1a of the conductor 1
After calculating the coating layer thickness corresponding to , the entire scree rotation speed control signal is output to the main extruder 4 to control the main extruder 4.
これにより、導体１径の変化に対応させて被覆層の厚さ
を変えることができるので、線径の一様な架橋ポリエチ
レン絶縁′亀カケープルを製造することができる。As a result, the thickness of the coating layer can be changed in accordance with the change in the diameter of the conductor, so it is possible to manufacture a crosslinked polyethylene insulated tortoise cable having a uniform wire diameter.
（発明の効果）
本発明によれば、ケーブル導体の外径全測定すると共に
得体外径測定部分に被覆されている被積層の厚さ全測定
し、これらの測定結果から押出機全制御するようにした
ことで、導体径に対応させて被覆層の厚さを変化させる
ことができる。従って、線径の一様な製品的に優れたケ
ーブルを得ることができる。(Effects of the Invention) According to the present invention, the entire outer diameter of the cable conductor is measured, and the entire thickness of the laminated material coated on the measured outer diameter portion is measured, and the entire extruder is controlled based on these measurement results. By doing so, the thickness of the coating layer can be changed in accordance with the diameter of the conductor. Therefore, it is possible to obtain a cable with a uniform wire diameter and excellent product quality.
図面は本発明の方法全３壇同時押出工程に適した例を示
す説明図である。The drawing is an explanatory diagram showing an example suitable for the three-stage simultaneous extrusion process of the method of the present invention.
Claims (1)
導体上に押出機にて押出被覆された被覆層の厚さ全測定
し、前記導体の外径測定部分に対応する被覆層厚を検出
し、ケーブル径を一定に保持するために前記導体の外径
変化に対応させて被覆層の厚さを変えるべく前記押出機
を制御することを特徴とするケーブルの被覆層厚制御方
法。Measuring the outer diameter of a continuously running cable conductor, measuring the total thickness of a coating layer extruded on the conductor using an extruder, and detecting the thickness of the coating layer corresponding to the portion of the conductor where the outer diameter is measured; A method for controlling the thickness of a cable coating layer, comprising controlling the extruder to change the thickness of the coating layer in response to a change in the outer diameter of the conductor in order to maintain a constant cable diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57204116A JPS5994309A (en) | 1982-11-19 | 1982-11-19 | Method of controlling coating layer for cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57204116A JPS5994309A (en) | 1982-11-19 | 1982-11-19 | Method of controlling coating layer for cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5994309A true JPS5994309A (en) | 1984-05-31 |
Family
ID=16485075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57204116A Pending JPS5994309A (en) | 1982-11-19 | 1982-11-19 | Method of controlling coating layer for cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5994309A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4952344A (en) * | 1986-07-12 | 1990-08-28 | Fly Fishing Technology Limited | Method of and apparatus for making a fishing line |
| JPH0310826A (en) * | 1989-05-31 | 1991-01-18 | Sikora Ind Electron Gmbh | Control system for controlling outer diameter of threadlike body |
| US5458830A (en) * | 1993-01-18 | 1995-10-17 | The Furukawa Electric Co., Ltd. | Method and apparatus of measurement of eccentricity dimension of ribbon-shaped body and apparatus for control of eccentricity dimension |
| JP2012058541A (en) * | 2010-09-09 | 2012-03-22 | Ube Nitto Kasei Co Ltd | Method for manufacturing optical fiber storage spacer |
-
1982
- 1982-11-19 JP JP57204116A patent/JPS5994309A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4952344A (en) * | 1986-07-12 | 1990-08-28 | Fly Fishing Technology Limited | Method of and apparatus for making a fishing line |
| JPH0310826A (en) * | 1989-05-31 | 1991-01-18 | Sikora Ind Electron Gmbh | Control system for controlling outer diameter of threadlike body |
| US5458830A (en) * | 1993-01-18 | 1995-10-17 | The Furukawa Electric Co., Ltd. | Method and apparatus of measurement of eccentricity dimension of ribbon-shaped body and apparatus for control of eccentricity dimension |
| JP2012058541A (en) * | 2010-09-09 | 2012-03-22 | Ube Nitto Kasei Co Ltd | Method for manufacturing optical fiber storage spacer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3502752A (en) | Control of the dimensions of multiple layers of extruded insulation | |
| JPS5994309A (en) | Method of controlling coating layer for cable | |
| GB1442031A (en) | Manufacture of insulating materials | |
| JPS62184716A (en) | Manufacture of flexible wire | |
| US4174236A (en) | Methods of and apparatus for controlling capacitance unbalance-to-ground in cables | |
| US2804592A (en) | Methods of and apparatus for measuring the capacitance of an insulated wire | |
| JP2934664B2 (en) | Unbonded PC strand with rust-proof coating excellent in water barrier and gas barrier properties | |
| US3053941A (en) | Magnetostrictive transducer for the recording and reproducing of magnetic information | |
| US3591704A (en) | High-voltage cable | |
| TW201931387A (en) | Two-core parallel cable | |
| SE462762B (en) | FLEXIBLE WIRING PIPE FOR WATER AND GAS MEDIUM AND WAY FOR PREPARATION OF THE PIPE | |
| WO2021134865A1 (en) | High-speed cable and unit structures thereof | |
| JPH09237529A (en) | High temperature superconductive cable conductor and manufacture thereof | |
| US3734794A (en) | High-voltage cable and method of making | |
| EP0655751A2 (en) | A coaxial cable and core and a method for manufacturing the same | |
| JPS6017308A (en) | Method for measuring coat thickness of cable | |
| JPS599810A (en) | 3-layer simultaneous extruder for power cable | |
| US2955968A (en) | Methods of making composite electrical conductors | |
| JPS5848307A (en) | Method of automatically controlling to extrude 2-layer insulator | |
| JPS6329413A (en) | Manufacture of shield ribbon cable | |
| JPS5828689B2 (en) | Oshidashi Koutei Niokeru | |
| JPS60189116A (en) | Different diameter conductor power cable and method of producing same | |
| JPS58214220A (en) | Method of controlling coating thickness of cable | |
| JPS6095809A (en) | Medicien resistant waterproof cable | |
| JP2001120532A (en) | Evaluating phantom of ct apparatus and evaluating method using this and method of manufacturing evaluating phantom |