JPH0142563B2 - - Google Patents
Info
- Publication number
- JPH0142563B2 JPH0142563B2 JP58015957A JP1595783A JPH0142563B2 JP H0142563 B2 JPH0142563 B2 JP H0142563B2 JP 58015957 A JP58015957 A JP 58015957A JP 1595783 A JP1595783 A JP 1595783A JP H0142563 B2 JPH0142563 B2 JP H0142563B2
- Authority
- JP
- Japan
- Prior art keywords
- twisting
- support member
- time
- fixed support
- rotation
- 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
Landscapes
- Ropes Or Cables (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
Description
【発明の詳細な説明】
本発明は、複数の線条体に一定長さのＳ撚Ｚ撚
を交互に施したSZ撚ケーブルの製造方法に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing an SZ twisted cable in which a plurality of filament bodies are alternately twisted in S and Z twists of a certain length.
従来の線条体撚合方法は、２つの固定支持部材
および両固定支持部材間に設けた２つの回転支持
部材により複数の線条体を支持しながら通過走行
させ、一定の周期で両回転支持部材を同一方向に
同一回転数で回転することにより一定長さの撚り
を行なうものである。 In the conventional striated body twisting method, a plurality of filament bodies are supported by two fixed support members and two rotational support members provided between the two fixed support members, and are allowed to run through each other. By rotating the members in the same direction at the same number of rotations, twisting of a fixed length is performed.
第１図において第１撚口F1−P1間距離をl1、第
２撚口P2−F2間距離をl2、固定支持部材１，２相
互間、距離をＬ、回転支持部材３，４の回転数を
Ｎ、線条体５の引取速度をＶとする。第１撚口
F1−P1間のｔ秒後の単位長さあたりの撚り数を
ｑ（ｔ）とすると、△ｔ秒後には第１撚口F1−P1
間にはＮ△ｔの撚り数が加わり、Ｖ△tq（ｔ）が
出て行くので、△ｔ秒後の撚り数の変化分は
l1△ｑ（ｔ）＝Ｎ△ｔ−Ｖ△tq（ｔ） −(1)
となる。回転支持部材の回転周期を第２図ａのよ
うに仮定し、ｑ（ｏ）＝０とすると(1)式より次式が
求まる。 In Figure 1, the distance between the first twisting port F 1 and P 1 is l 1 , the distance between the second twisting port P 2 and F 2 is l 2 , the distance between the fixed support members 1 and 2 is L, and the rotation support member Let N be the number of rotations of 3 and 4, and V be the take-up speed of the filament body 5. 1st twist opening
If the number of twists per unit length after t seconds between F 1 - P 1 is q(t), after △t seconds, the first twist point F 1 - P 1
The number of twists of N△t is added in between, and V△tq(t) goes out, so the change in the number of twists after △t seconds is l 1 △q(t) = N△t - V△tq (t) −(1). Assuming that the rotation period of the rotary support member is as shown in FIG. 2a and q(o)=0, the following equation can be obtained from equation (1).
ｑ（ｔ）＝Ｎ／Ｖ｛１−exp（−Ｖ／l1ｔ）｝ −(2)
ｑ（ｔ）は第１撚口F1−P1間の距離l1の関数と
なり、これをグラフに示すと第３図のようにな
る。第３図からよくわかるように撚り数ｑ（ｔ）
は過渡状態を経て定常状態に近づく。また、第２
撚口P2−F2においては同様に逆の撚りが行なわ
れる。そして、第１撚口で撚られた過渡状態の撚
り始端は、第２撚口に達すると、定常状態で逆に
撚り返される。回転支持部材の回転時間と、停止
あるいは低速回転時間を等しくしている従来の方
法では一度撚られた線条体が撚り返され撚り支点
での撚りピツチの伸びが非常に大きいという欠点
があつた。 q(t)=N/V{1−exp(−V/l 1 t)} −(2) q(t) is a function of the distance l 1 between the first twisting opening F 1 −P 1 , and this can be expressed as The graph is shown in Figure 3. As can be clearly seen from Figure 3, the number of twists q(t)
approaches a steady state after passing through a transient state. Also, the second
Similarly, reverse twisting is performed at the twisting opening P 2 -F 2 . Then, when the twist start end in a transient state twisted at the first twisting port reaches the second twisting port, it is reversely twisted in a steady state. The conventional method in which the rotation time of the rotating support member is made equal to the stop or low-speed rotation time has the disadvantage that the once-twisted filament is untwisted and the elongation of the twist pitch at the twisting fulcrum is extremely large. .
そこで本発明の目的は、撚りピツチの伸びを最
小限に抑えてSZ撚合をするSZ撚ケーブルの製造
方法を提供することにある。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for manufacturing an SZ-twisted cable in which SZ-twisting is performed while minimizing elongation of the twist pitch.
本発明によれば、間隔をおいて設けた２つの固
定支持部材間に、２つの回転支持部材をそれぞれ
前記固定支持部材に近接させて設け、複数の線条
体を前記部材により支持しながら通過走行させ、
２つの前記回転支持部材を一定の時間T1同一方
向に同一回転数で回転（あるいは高速回転）し、
前記回転時間T1より長い時間T2停止あるいは低
速回転し、前記回転支持部材を反転しこれを繰り
返すことにより上記目的を達成し得た。 According to the present invention, two rotary support members are provided between two fixed support members provided at an interval, each close to the fixed support member, and the plurality of filamentary bodies pass while being supported by the members. let it run,
Rotating the two rotating support members in the same direction at the same rotation speed (or rotating at high speed) for a certain period of time T1 ,
The above object could be achieved by stopping or rotating at a low speed for a time T2 longer than the rotation time T1 , reversing the rotation support member, and repeating this process.
回転支持部材３，４が回転（あるいは高速回
転）している時間T1は、第１撚口のP1にあつた
撚り始端が第２撚口のP2まで移動する時間t1に撚
り数が定常状態の半分になる時間t2を加えた時間
である。 The time T 1 during which the rotation support members 3 and 4 are rotating (or rotating at high speed) is the time t 1 during which the twist starting end at P 1 of the first twisting port moves to P 2 of the second twisting port, and the number of twists is This is the time t 2 added to the time when the value becomes half of the steady state.
t1＝Ｌ−（l1＋l2）／Ｖ −(3)
であり、また、第３図より
t2＝0.69l1／Ｖ −(4)
であるので、回転支持部材３，４の回転（あるい
は高速回転）時間T1は、
T1＝Ｌ−0.31l1−l2／Ｖ −(5)
となる。 Since t 1 =L−(l 1 +l 2 )/V −(3), and from FIG. 3, t 2 =0.69l 1 /V −(4), the rotation of the rotation support members 3 and 4 (or high-speed rotation) time T 1 is T 1 =L−0.31l 1 −l 2 /V −(5).
また、回転支持部材の停止（あるいは低速回
転）時間T2は、第１撚口のF1にあつた撚り終端
部が第２撚口のP2まで移動する時間であり、
T2＝Ｌ−l2／Ｖ −(6)
である。 Further, the stop (or low speed rotation) time T 2 of the rotation support member is the time during which the twisting end portion located at F 1 of the first twisting port moves to P 2 of the second twisting port, and T 2 =L− l 2 /V −(6).
この後に回転支持部材の回転を反転させれば終
端部の撚り方向と同じ撚りが、撚りピツチの伸び
なしに連続して行なうことができる。つまり、停
止時間が終わつた時点でまだ撚り返されていない
撚り終端部はP2にあり、そこで反転が開始する
ので終端部と同方向の撚りが連続して行なえるの
である。 If the rotation of the rotary support member is then reversed, twisting can be continuously performed in the same direction as the twisting direction of the terminal end without elongation of the twist pitch. In other words, at the end of the stopping time, the untwisted end portion is at P2 , and since the reversal starts there, twisting can be continued in the same direction as the end portion.
本発明はこのように撚りピツチの伸びを生ずる
ことなくSZ撚ケーブルを製造する方法である。 The present invention is thus a method for manufacturing SZ twisted cables without elongation of the twist pitch.
第４図には本発明の一実施例であり、撚合装置
６の先方に設けた計尺器１０によりケーブル長を
計尺し、プリセツトカウンターで回転（あるいは
高速回転）時間、停止（あるいは低速回転）時間
に相当する長さをそれぞれ設定しておき、第２図
ｃまたはｄで示される出力信号により作動させ
る。また、SZ撚合装置の後に、撚りくずれを防
止するために介在させるプラスチツクを押出す介
在層押出機７、プラスチツクによる防食層を施す
防食層押出機８、冷却水槽９、引取機１１、巻取
機１２を設け、SZ撚ケーブルを製造する。 FIG. 4 shows an embodiment of the present invention, in which the cable length is measured with a measuring device 10 provided at the front of the twisting device 6, and a preset counter is used to measure the rotation (or high speed rotation) time, stop (or The lengths corresponding to the (low-speed rotation) time are set respectively, and the output signals shown in FIG. 2c or d are used to operate. In addition, after the SZ twisting device, there is an intervening layer extruder 7 that extrudes plastic interposed to prevent twisting, an anticorrosive layer extruder 8 that applies a plastic anticorrosive layer, a cooling water tank 9, a take-up machine 11, and a winder. A machine 12 is installed to manufacture SZ twisted cables.
第１図は撚合装置を概略的に表わした図で、第
２図ａ，ｂは従来の撚合装置の作動状態を出力信
号で示したもので、ｃ，ｄは本発明のSZ撚合装
置の作動状態を出力信号で表わしたもので、第３
図は第(2)式をグラフに表わした図で、第４図は本
発明の１実施例である。
図中符号、１，２……固定支持部材、３，４…
…回転支持部材、５……線条体、６……SZ撚合
装置、７……介在層押出機、８……防食層押出
機、９……冷却水槽、１０……計尺器、１１……
引取機、１２……巻取機、１３……送出機。
Fig. 1 is a diagram schematically showing the twisting device, Fig. 2 a and b show the operating status of the conventional twisting device using output signals, and c and d show the SZ twisting device of the present invention. The operating state of the device is expressed as an output signal, and the third
The figure is a graph representing equation (2), and FIG. 4 is an embodiment of the present invention. Codes in the figure, 1, 2...Fixed support members, 3, 4...
...Rotating support member, 5...Striated body, 6...SZ twisting device, 7...Intervening layer extruder, 8...Corrosion protection layer extruder, 9...Cooling water tank, 10...Measuring device, 11 ……
Take-up machine, 12... winding machine, 13... sending machine.
Claims (1)
間に、２つの回転支持部材をそれぞれ前記固定支
持部材に近接させて設け、複数の線条体を前記両
部材により支持しながら通過走行させるものにお
いて、第１撚口部の固定支持部材と回転支持部材
間の距離をl1、第２撚口部の固定支持部材と回転
支持部材間の距離をl2、２つの固定支持部材間の
距離をＬ、線条体の引取速度をＶとしたとき、２
つの前記回転支持部材を（Ｌ−0.31l1−l2）／Ｖ
の時間同一方向に同一回転数で回転させたのち、
（Ｌ−l2）／Ｖの時間停止あるいは低速回転させ、
次いで前記回転支持部材を反転させ、この動作を
繰り返すことによりSZ撚ケーブルを製造する方
法。1. Two rotary support members are provided between two fixed support members provided at an appropriate interval, each close to the fixed support member, and a plurality of filament bodies are supported by both of the members and run through. , the distance between the fixed support member and the rotational support member of the first twisting part is l 1 , the distance between the fixed support member and the rotational support member of the second twisting part is l 2 , and the distance between the two fixed support members is L, and the withdrawal speed of the striatum is V, then 2
(L-0.31l 1 -l 2 )/V
After rotating at the same speed in the same direction for a period of time,
Stop for a time of (L-l 2 )/V or rotate at low speed,
A method of manufacturing an SZ twisted cable by then inverting the rotary support member and repeating this operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1595783A JPS59141114A (en) | 1983-02-02 | 1983-02-02 | Method of producing sz twisted cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1595783A JPS59141114A (en) | 1983-02-02 | 1983-02-02 | Method of producing sz twisted cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59141114A JPS59141114A (en) | 1984-08-13 |
| JPH0142563B2 true JPH0142563B2 (en) | 1989-09-13 |
Family
ID=11903212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1595783A Granted JPS59141114A (en) | 1983-02-02 | 1983-02-02 | Method of producing sz twisted cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59141114A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0740448B2 (en) * | 1986-03-31 | 1995-05-01 | 昭和電線電纜株式会社 | SZ twisted wire-shield method |
-
1983
- 1983-02-02 JP JP1595783A patent/JPS59141114A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59141114A (en) | 1984-08-13 |
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