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JPS6072113A - Device for adjusting thickness of cable - Google Patents

Device for adjusting thickness of cable

Info

Publication number
JPS6072113A
JPS6072113AJP58181235AJP18123583AJPS6072113AJP S6072113 AJPS6072113 AJP S6072113AJP 58181235 AJP58181235 AJP 58181235AJP 18123583 AJP18123583 AJP 18123583AJP S6072113 AJPS6072113 AJP S6072113A
Authority
JP
Japan
Prior art keywords
resin
cable
amount
take
speed
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
Application number
JP58181235A
Other languages
Japanese (ja)
Inventor
桑本 和博
幹男 田中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SWCC Corp
Original Assignee
Showa Electric Wire and Cable Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Showa Electric Wire and Cable CofiledCriticalShowa Electric Wire and Cable Co
Priority to JP58181235ApriorityCriticalpatent/JPS6072113A/en
Publication of JPS6072113ApublicationCriticalpatent/JPS6072113A/en
Pendinglegal-statusCriticalCurrent

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Abstract

Translated fromJapanese

(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

Translated fromJapanese

【発明の詳細な説明】[発明の技術分野]本発明はケーブルの肉厚調整装置に関し、特に被覆すべ
き樹脂の消費量により均一な肉厚を得るようにしたこの
種装置に係わる。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a device for adjusting the wall thickness of a cable, and more particularly to a device of this type that achieves a uniform wall thickness by adjusting the amount of resin to be coated.

[発明の技術的背景]従来から、ケーブルを製造するにあたり、第1図に示す
ような押出ライン1が用%1られでいる。
[Technical Background of the Invention] Conventionally, in manufacturing cables, an extrusion line 1 as shown in FIG. 1 has been used.

即ち、供給ドラム2から取り出された芯線」二に、押出
機3によって送り込まれた合成樹脂がクロスヘッド4に
より押出被覆されてケーブルが形成される。ケーブルは
水槽5によって冷却さIL、引取fi6によって引取ら
れ1巻取ドラム7により巻取られる。
That is, the core wire 2 taken out from the supply drum 2 is coated with a synthetic resin fed by an extruder 3 by extrusion by a crosshead 4 to form a cable. The cable is cooled in a water tank 5, taken up by a take-up fi6, and wound up by a take-up drum 7.

このようにして押出被覆されたケーブルの肉厚の測定は
、作業者がパイ(π)尺を用い、芯線径と被覆外径を測
定しながら製造を行っている。即ぢ、測定により肉厚が
均一でない場合、その都度押出機3の回転数が変速可能
なスクリューあるいは押・ 出ライン1のライン速度を
変速可能な引取(5(6を用い、そのスクリューの回転
数あるいは引取機によるライン速度を変えて、作業者が
調整している゛ ものである。
The thickness of the extrusion coated cable is measured by an operator using a pi (π) scale while manufacturing the cable while measuring the core wire diameter and the outer diameter of the coating. Immediately, if the wall thickness is not uniform according to the measurement, use a screw that can change the rotation speed of the extruder 3 or a take-off (5 (6) that can change the line speed of the extrusion/output line 1, and adjust the rotation of the screw. This is adjusted by the operator by changing the number of lines or the line speed of the pulling machine.

[背景技術の問題点]しかしながら、肉厚の不均一なケーブルを動きながら測
定するため、正確に被覆外径を測定することが困難であ
り、そのため樹脂量を設H1段階よりも多くせざるを得
ないという難点がある。
[Problems with the background technology] However, since the cable with uneven wall thickness is measured while moving, it is difficult to accurately measure the outer diameter of the coating, and therefore the amount of resin has to be larger than that at the design H1 stage. The problem is that you can't get it.

[発明の目的]本発明は叙上のような従来の難点を解消するためになさ
れたもので、被覆すべき樹脂の量を計量し、これにより
所定時間当りの樹脂消費量を割算し、これと被覆された
該所定時間に走行する長さ当りの樹脂被覆量とを比較し
て押出機の押出速度或いは引取機の引取速度を制御し自
動的に肉厚の均一化、即ちケーブルの平均被覆肉厚制御
を行うケーブルの肉厚調整装置を提供せんとするもので
ある。
[Object of the Invention] The present invention was made to solve the above-mentioned conventional difficulties, and it measures the amount of resin to be coated, divides the amount of resin consumed per predetermined time by this, and measures the amount of resin to be coated. The extrusion speed of the extruder or the take-up speed of the take-off machine is controlled by comparing this with the amount of resin coating per length of the cable that runs during the predetermined time, and automatically equalizes the wall thickness, that is, the average of the cable. It is an object of the present invention to provide a cable thickness adjustment device that controls coating thickness.

[発明の概要]このような目的を達成するために本発明によれば、走行
する芯線上に樹脂を押出被覆する押出機と、前記押出機
へ供給する該樹脂の樹脂量をM4景する計量器と、該芯
線上に樹脂が被覆されたケーブルを引き取るための引取
機と、前記計量器よりの樹脂量からめられる所定時間当
りの樹脂消費量と前記芯線上に被覆された該所定時間に
走行する長さ当りの樹脂被重量を比較し前記押出機の押
出速度或いは引取機の引取速度を制御する演算):′F
とを有するケーブルの肉厚調整装置を構成する。
[Summary of the Invention] In order to achieve such objects, the present invention provides an extruder for extruding and coating a traveling core wire with a resin, and a metering device for measuring the amount of resin supplied to the extruder. a cable that is coated with resin on the core wire, a cable that is coated with resin on the core wire, a cable that is covered with resin on the core wire, and a cable that is coated with resin on the core wire, and a cable that is coated with resin on the core wire. Calculation for comparing the weight of resin covered per length and controlling the extrusion speed of the extruder or the take-up speed of the take-off machine):'F
A cable wall thickness adjustment device is configured.

[発明の実施例]以下、本発明の好ましい実施例を第2図および第3図に
より詳述する。
[Embodiments of the Invention] Preferred embodiments of the present invention will be described in detail below with reference to FIGS. 2 and 3.

本発明の装置は第1図に示したものと同様な押出ライン
が用いられており、そのうち押出機と引取機部分を第2
図に示す。第2図において、押出ライン10には押出機
11と引取Q12が設けられている。押出機11には芯
線上に押出被覆すべき樹脂13を貯溜する貯溜槽14お
よび樹脂13の量を側爪する計量器15が設けられてい
る。また、樹脂13は直接クロスヘッド16より押出さ
れ、モータ17の速度(スクリュー回転数)によりその
押出量が調整される。引取機12からの引取速度・計量
器15からの重量値・モータ17からの押出速度の信号
が演算器18にそれぞれ入力され、さらに演算器18に
はケーブルの被覆後の測定された外径値D・芯線(コア
)径値d°樹脂13の比重値ρがそれぞれ入力される。
The apparatus of the present invention uses an extrusion line similar to that shown in FIG.
As shown in the figure. In FIG. 2, an extrusion line 10 is provided with an extruder 11 and a take-off Q12. The extruder 11 is provided with a storage tank 14 for storing the resin 13 to be extruded and coated onto the core wire, and a measuring device 15 for measuring the amount of the resin 13. Further, the resin 13 is directly extruded from the crosshead 16, and the amount of extrusion is adjusted by the speed of the motor 17 (screw rotation speed). The signals of the take-off speed from the take-off machine 12, the weight value from the scale 15, and the extrusion speed from the motor 17 are inputted to the calculator 18, and the measured outer diameter value of the cable after being covered is inputted to the calculator 18. D, core diameter value d°, and specific gravity value ρ of the resin 13 are input, respectively.

このように構成された装置における肉厚調整の制御を第
3図により説明する。
Control of wall thickness adjustment in the apparatus configured as described above will be explained with reference to FIG.

先ず、演算器18において、ケーブル10mを製造する
のに要する時間t(0→t)が計算される。
First, the computing unit 18 calculates the time t (0→t) required to manufacture the cable 10m.

引取8112からの引取速度をVとすると。Let V be the withdrawal speed from the withdrawal 8112.

t = 1 0 / vとなる。t = 1 0 / vbecomes.

一方、制御量として、ケーブル外径り、コア径dおよび
比重ρより時間t(0→t)におけるケーブル10n+
の被覆量W1が計算される。これを式で表わすと、Wよ=1/4(D −d )X x p XIOとなる
。ここで、ケーブル外径りはレーザー外径測定器等によ
り常に測定されているものである。
On the other hand, as a control variable, the cable 10n+ at time t (0 → t) is calculated from the cable outer diameter, core diameter d, and specific gravity ρ.
The coverage amount W1 is calculated. Expressing this in a formula, W = 1/4 (D - d)X x p XIO. Here, the cable outer diameter is always measured using a laser outer diameter measuring device or the like.

また、貯溜槽14の樹脂量は計量器15によって常に演
算器18に入力されており、前記ケーブル10mの製造
に要した時間t(0→t)において′A!J資された樹
脂の消費量が測定量として計算される。樹脂消費量をW
lとすると、W2=Wo−W、(但し、モータ17による押出速度は
一定)となる。
Further, the amount of resin in the storage tank 14 is constantly inputted to the calculator 18 by the measuring device 15, and 'A! The amount of resin consumed is calculated as the measured amount. Reduce resin consumption to W
1, W2=Wo-W (however, the extrusion speed by the motor 17 is constant).

したがって、WlとWlを比較することが、ケーブルの
被覆が平均的肉厚を保っているかどうかを示すものであ
る。これは、WlとWlは測定される時間を同じとして
いることにより理論的には等しいはずであるが、実際問
題として樹脂I3は貯溜槽14から押出機11を介して
いるため、押出機11内にある分だけずれて芯線上に被
覆されることになる。このことから、押出機11内にお
ける温度等の諸々の条件が被覆厚に影響を及ぼすことに
より実際にはWlとWlとに差が生ずることとなるもの
である。
Therefore, comparing Wl and Wl indicates whether the cable sheath maintains an average thickness. Theoretically, Wl and Wl should be equal because they are measured at the same time, but in reality, the resin I3 is passed from the storage tank 14 through the extruder 11, so it is inside the extruder 11. The core wire will be coated with a deviation of the same amount. From this, various conditions such as the temperature inside the extruder 11 affect the coating thickness, so that a difference actually occurs between Wl and Wl.

したがって、両者の比較によりWl<Wlの場合には、
ケーブルの被覆の肉厚が時間t(0−+t)において途
中から厚くなっていることを示していることになる。演
算器18はwlとw2の差分を操作爪として引取機12
の引取速度を増速するよう出力し、肉厚を薄くする方向
に操作させるものである。
Therefore, by comparing the two, if Wl<Wl,
This indicates that the thickness of the cable coating becomes thicker from the middle at time t(0-+t). The computing unit 18 uses the difference between wl and w2 as an operating claw for the take-up machine 12.
It outputs an output to increase the take-up speed of the machine and operates the machine in the direction of thinning the wall thickness.

逆に、W□〉Wlの場合は、肉厚が時間t(0→t)に
おいて途中から暮くなっていることを示しており、演算
器18はW□とW2の差分を操作量として引取機12の
引取速度を減速するよう出力し、肉厚を厚くする方向に
操作させるものである。
Conversely, in the case of W□>Wl, this indicates that the wall thickness decreases from the middle at time t (0→t), and the calculator 18 takes the difference between W□ and W2 as the manipulated variable. It outputs an output to reduce the take-up speed of the machine 12 and causes the machine 12 to operate in the direction of increasing the wall thickness.

このように、ケーブルの被覆肉厚を調整、制御している
ためケーブル全体に互って平均的な被覆肉厚を得ること
ができる。
Since the cable coating thickness is adjusted and controlled in this way, it is possible to obtain an average coating thickness over the entire cable.

なお、本実施例では樹脂の押出速度を一定にして引取機
の速度を制御させた場合を示したが、逆に引取速度を一
定にして樹脂を押出させるためのモータの速度即ち押出
機のスクリュー回転数を制御して押出速度を制御しても
同様の効果が得られるものである。
In this example, a case was shown in which the extrusion speed of the resin was kept constant and the speed of the take-off machine was controlled, but conversely, the speed of the motor to extrude the resin while keeping the take-off speed constant, that is, the screw of the extruder A similar effect can be obtained by controlling the extrusion speed by controlling the rotational speed.

[発明の効果コ以上の実施例からも明らかなように、本発明によれば、
被覆すべき樹脂の景を■1測し、これにより所定時間当
りの4ft脂消費見を計算し、これと被覆された該所定
時間に走行する長さ当りの樹脂被覆量を比較し押出機の
押出速度或いは引取機の引取速度を制御することにより
、自動的にケーブルの平均被覆肉厚制御をすることがで
き、また余分な樹脂を供給せずに済み経済的となる。さ
らに、偏肉測定装置を利用して偏肉を調整することによ
り、設計肉厚の約90%まで被覆厚を下げることができ
さらに効果が期待できるものである。
[Effects of the Invention] As is clear from the above embodiments, according to the present invention,
Measure the amount of resin to be coated, calculate the estimated 4ft fat consumption per predetermined time, and compare this with the amount of resin coated per length of time covered in the predetermined time. By controlling the extrusion speed or the take-off speed of the take-off machine, it is possible to automatically control the average coating thickness of the cable, and it is economical to avoid supplying excess resin. Furthermore, by adjusting the uneven thickness using a thickness unevenness measuring device, the coating thickness can be reduced to about 90% of the designed thickness, and further effects can be expected.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は制御対象としての押出ラインの説明図、第2図
は本発明の装置を示した説明図、第3図は該装置の動作
フローチャートを示す。1.10・・・・・・・・押出ライン3.11・・・・・・・・押出機4.16・・・・・・・・クロスヘッド6.12・・・
・・・・・引取機15・・・・・・・・計量器18・・・・・・・・演算器代理人 弁理士 守 谷 −雄佑 l 図早第 2 図弔3 図ダl取遠度滅床
FIG. 1 is an explanatory diagram of an extrusion line as a controlled object, FIG. 2 is an explanatory diagram showing the apparatus of the present invention, and FIG. 3 is an operational flowchart of the apparatus. 1.10...Extrusion line 3.11...Extruder 4.16...Cross head 6.12...
...Takeover machine 15...Measuring instrument 18...Calculator agent Patent attorney Yusuke Moriya l Figure Haya No. 2 Figure Condolence 3 Figure Dal Torien frequent death bed

Claims (1)

Translated fromJapanese
【特許請求の範囲】[Claims]走行する芯線上に樹脂を押出被覆する押出機と、前記押
出機へ供給する該樹脂の樹脂量を計量する計量器と、該
芯線上に樹脂が被覆されたケーブルを引き取るための引
取機と、前記計量器よりの樹脂量からめられる所定時間
当りの樹脂消費量と前記芯線上に被覆された該所定時間
に走行する長さ当りの樹脂被覆量を比較し前記押出機の
押出速度或いは引取機の引取速度を制御する演算器とを
有することを特徴とするケーブルの肉厚調整装置
an extruder that extrudes and coats a traveling core wire with resin; a measuring device that measures the amount of the resin supplied to the extruder; and a take-off machine that takes out the cable with the resin coated on the core wire; The amount of resin consumed per predetermined time determined from the amount of resin from the measuring device is compared with the amount of resin coated on the core wire per length of travel during the predetermined time, and the extrusion speed of the extruder or the take-off machine is determined. A cable wall thickness adjustment device characterized by having a computing unit that controls a take-up speed.
JP58181235A1983-09-291983-09-29Device for adjusting thickness of cablePendingJPS6072113A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP58181235AJPS6072113A (en)1983-09-291983-09-29Device for adjusting thickness of cable

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP58181235AJPS6072113A (en)1983-09-291983-09-29Device for adjusting thickness of cable

Publications (1)

Publication NumberPublication Date
JPS6072113Atrue JPS6072113A (en)1985-04-24

Family

ID=16097155

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP58181235APendingJPS6072113A (en)1983-09-291983-09-29Device for adjusting thickness of cable

Country Status (1)

CountryLink
JP (1)JPS6072113A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US4708837A (en)*1986-04-091987-11-24Northern Telecom LimitedMethod and apparatus for insulating electrical conductor
US4952344A (en)*1986-07-121990-08-28Fly Fishing Technology LimitedMethod of and apparatus for making a fishing line
JPH02304817A (en)*1989-05-191990-12-18Yazaki Corp Method for calculating linear speed of wire rod running in extruder and its device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US4708837A (en)*1986-04-091987-11-24Northern Telecom LimitedMethod and apparatus for insulating electrical conductor
US4952344A (en)*1986-07-121990-08-28Fly Fishing Technology LimitedMethod of and apparatus for making a fishing line
JPH02304817A (en)*1989-05-191990-12-18Yazaki Corp Method for calculating linear speed of wire rod running in extruder and its device

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