JPS60258070A - Bobbin winder complete - Google Patents
Bobbin winder completeInfo
- Publication number
- JPS60258070A JPS60258070A JP11416484A JP11416484A JPS60258070A JP S60258070 A JPS60258070 A JP S60258070A JP 11416484 A JP11416484 A JP 11416484A JP 11416484 A JP11416484 A JP 11416484A JP S60258070 A JPS60258070 A JP S60258070A
- Authority
- JP
- Japan
- Prior art keywords
- contact pressure
- bobbin
- pressure
- roller
- winding
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H54/00—Winding, coiling, or depositing filamentary material
- B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
- B65H54/40—Arrangements for rotating packages
- B65H54/52—Drive contact pressure control, e.g. pressing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は繊維機械における糸巻爪装置に係り、特に糸を
巻取るボビンに回転するフリクションローラを圧接して
該ボビンを従動回転させる方式の糸巻爪装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a thread winding claw device in a textile machine, and more particularly to a thread winding claw device of a type in which a rotating friction roller is brought into pressure contact with a bobbin for winding yarn, and the bobbin is driven to rotate. Regarding.
従来の技術
上記した糸巻爪装置においては、フリクションローラと
パッケージとの接圧を一定にして巻取りを行った場合、
パッケージ内層の糸が外層の糸に比べて硬く巻取られる
傾向がある。このようなパッケージは形がくずれ易く、
また染色時に染色ムラを生じたりするので好ましくない
。BACKGROUND ART In the above-mentioned bobbin winding claw device, when winding is carried out with constant contact pressure between the friction roller and the package,
The yarn in the inner layer of the package tends to be wound harder than the yarn in the outer layer. Such packages tend to lose their shape;
Moreover, it is not preferable because it may cause uneven dyeing during dyeing.
従ってパッケージはその内外層にわたって均一な硬さで
巻取られることが望ましい。Therefore, it is desirable that the package be wound with uniform hardness throughout its inner and outer layers.
このため上記接圧を糸の巻取中に変化させることが行わ
れているが、流体シリンダ等を用いて接圧の制御を行っ
た場合、接圧の切替時に該接圧が瞬間的に大きく変動し
てハンチング現象を生じJ糸の巻取りが不整になって前
記染色ムラを生じ易いという欠点があった。For this reason, the above-mentioned contact pressure is changed while winding the yarn, but when the contact pressure is controlled using a fluid cylinder, etc., the contact pressure increases momentarily when switching the contact pressure. There is a drawback that the fluctuation causes a hunting phenomenon, and the winding of the J yarn becomes irregular, which tends to cause the above-mentioned uneven dyeing.
発明が解決しようとする問題点
本発明は上述した欠点を解消し、接圧制御を確実に行う
ことのできる糸巻爪装置を提供することを目的とする。Problems to be Solved by the Invention An object of the present invention is to eliminate the above-mentioned drawbacks and to provide a thread winding claw device that can reliably control contact pressure.
問題点を解決するための手段
本発明はフリクションローラとボビンまたはパッケージ
との接圧を所定圧に維持する第1の流体シリンダと、上
記接圧を切替制御する第2の流体シリンダとを上記糸巻
爪装置に具えるものとした。Means for Solving the Problems The present invention provides a first fluid cylinder that maintains the contact pressure between the friction roller and the bobbin or package at a predetermined pressure, and a second fluid cylinder that switches and controls the contact pressure. It is intended to be included in the claw device.
作用
糸をボビン上に巻取るに際し、上記第1の流体シリンダ
がフリクションローラの重量の大部分を所定の力で支持
し、上記接圧を所定圧に維持する。第2の流体シリンダ
はフリクションローラの重量の一部分のみを支持し、パ
ッケージ径の増大に伴ってその作用力を切替えられる。When winding the working yarn onto the bobbin, the first fluid cylinder supports most of the weight of the friction roller with a predetermined force and maintains the contact pressure at a predetermined pressure. The second fluid cylinder supports only a portion of the weight of the friction roller, and its acting force can be switched as the package diameter increases.
第2の流体シリンダは最小の場合上記接圧の変動分に相
当する作用力を及ぼすのみで足り。In the minimum case, the second fluid cylinder only needs to exert an acting force corresponding to the variation in the contact pressure.
その容量を小とすることができる結果、作用力を比較的
正確に切替制御することができ、@記した接圧のハンチ
ングを小さく抑えて良好なパッケージを得ることができ
る。As a result of being able to make the capacity small, it is possible to switch and control the acting force relatively accurately, and it is possible to suppress the contact pressure hunting mentioned in @ to a small extent and obtain a good package.
実施例
第1図は溶融紡出されて連続的に供給されるフィラメン
ト糸(ト)をボビン(]3)上に巻取るためのテイクア
ヴプ装置を示している。本体(1)の上部には図示しな
いガイドロッドに沿って昇降自在なスライドボックス(
2)が設けられ、該ボックス(2)には図示しない駆動
装置によって矢印(3)方向に回転駆動されるフリクシ
ョンローラ(4)ト、トラバースガイド(5)を紙面と
直交する方向に往復動させるトラバース装置(6)とが
設けられている。Embodiment FIG. 1 shows a take-up device for winding melt-spun and continuously supplied filament yarn onto a bobbin (3). At the top of the main body (1) there is a slide box (
2), and the box (2) is provided with a friction roller (4) that is rotationally driven in the direction of arrow (3) by a drive device (not shown), and a traverse guide (5) that reciprocates in a direction perpendicular to the plane of the paper. A traverse device (6) is provided.
(Sl)(S2)はスライドボックス(2)と本体(1
)との間にそれぞれ設けられたエアーシリンダであり。(Sl) (S2) consists of slide box (2) and main body (1).
) is an air cylinder installed between each.
その作用力によってスライドボックス(2)の重量を支
えている。(力は本体(1)に回転自在に支持されたボ
ビン支持筒で、その外周に前記ボビン(B)を着脱可能
に装着する。フリクションローラ(4)は該ローラ(4
)およびトラバース装置(6)等を含むスライドボック
ス(2)の重量から上記シリンダ(Sl)(32)の作
用力を差引いた力でボビン(B)の外周に圧接し、該ボ
ビン(B)を矢印(8)方向に従動回転させる。(9)
はトラバースガイド(5)から糸(ト)の係合を解くた
めのバンチレバー、1(10)は該レバ’−(9)によ
って外された糸(1)をボビン(ハ)上に形成された図
示しないスリット位置に導くバンチガ11・
イドである。(11)は本体(1)に回動自在に設けら
れたスネルガイドである。The weight of the slide box (2) is supported by the acting force. (The force is a bobbin support cylinder rotatably supported by the main body (1), on the outer periphery of which the bobbin (B) is removably attached. The friction roller (4) is
) and the traverse device (6), etc., by subtracting the acting force of the cylinder (Sl) (32) from the weight of the slide box (2), and press the bobbin (B) against the outer periphery of the bobbin (B). Rotate in the direction of arrow (8). (9)
1 (10) is a bunch lever for disengaging the thread (G) from the traverse guide (5), and 1 (10) is a bunch lever for disengaging the thread (1) from the traverse guide (5). This is a bunch guide 11 that leads to a slit position (not shown). (11) is a Snell guide rotatably provided on the main body (1).
第1のシリンダ(Sl)には図外の圧空源から2本の分
岐された管路を介して、第2のシリンダ(S2)には上
記圧空源から3本の分岐された管路を介してそれぞれエ
アーが供給される。上記各管路にはそれぞれ減圧弁(P
vl)〜(pv5 )とソレノイドバルブ(SVI)〜
(SV5 )が設けられ、各減圧弁には圧力計(PMI
)〜(、PM5)が取付けられている。The first cylinder (Sl) is connected to the compressed air source (not shown) through two branched pipe lines, and the second cylinder (S2) is connected to the compressed air source through three branched pipe lines. Air is supplied to each. Each of the above pipelines has a pressure reducing valve (P
vl) ~ (pv5) and solenoid valve (SVI) ~
(SV5) is provided, and each pressure reducing valve is equipped with a pressure gauge (PMI).
) to (, PM5) are attached.
スライドボックス(2)の全重量Wを100 kgと仮
定すると、第1のシリンダ(Sl)は該重量尚を支持し
持上げるに充分な容量を有するものとし、そのシリンダ
内径(rl)を仮りに80πmとする。Assuming that the total weight W of the slide box (2) is 100 kg, the first cylinder (Sl) has sufficient capacity to support and lift the weight, and the inner diameter of the cylinder (rl) is assumed to be It is assumed to be 80πm.
第2のシリンダ(S2)は後述する接圧制御を行い得る
程度の小さなものであれば良く、その内径(r2)を2
0朋とする。第1の減圧弁(PVI)は第1のソレノイ
ドバルブ(SVI)のみが開いたとき第1のシリンダ(
Sl)の作用力(SPI)が上記重量Wより少し小さな
値例えば80に9となるよう設定される。第2の減圧弁
(PV2)は第1および第2のソレノイドバルブ(SV
I ) (SV2)が開いたとき第1のシリンダ(Sl
)の作用力が上記重量Wより大きく、スライドボックス
(2)を上方にスライドできる程度の圧力に設定される
。第3ないし第5のソレノイドバルブ(SV3)〜(S
V5)はこれらのうちの1つのみが開き他は閉じた状態
となるよう交互に開閉制御され、第3の減圧弁(PV3
)は第3のソレノイドバルブ(SV3)が開いたとき第
2のシリンダ(S2)の作用力(SF3)が5k(jと
なるよう、第4の減圧弁(PV4)は第4のソレノイド
バルブ(SV4 )が開いたとき上記作用力(SF3)
が15kqとなるよう、第5の減圧弁(PV5)は第5
のソレノイドバルブ(,5V5)が開いたとき上記作用
力(SF3)が10kgとなるよう、それぞれ設定され
る。The second cylinder (S2) may be small enough to perform contact pressure control, which will be described later, and its inner diameter (r2) should be 2.
Let it be 0. The first pressure reducing valve (PVI) is connected to the first cylinder (
The acting force (SPI) of S1 is set to a value slightly smaller than the weight W, for example, 80 to 9. The second pressure reducing valve (PV2) is connected to the first and second solenoid valves (SV
I) When the (SV2) opens, the first cylinder (Sl
) is greater than the weight W, and is set to a pressure that is sufficient to slide the slide box (2) upward. Third to fifth solenoid valves (SV3) to (S
V5) is controlled to open and close alternately so that only one of them is open and the other is closed, and the third pressure reducing valve (PV3
) is such that when the third solenoid valve (SV3) opens, the acting force (SF3) of the second cylinder (S2) is 5k (j), and the fourth pressure reducing valve (PV4) is connected to the fourth solenoid valve ( When SV4) is opened, the above acting force (SF3)
The fifth pressure reducing valve (PV5)
Each solenoid valve (5V5) is set so that the acting force (SF3) is 10 kg when the solenoid valve (5V5) is opened.
糸(ト)の巻取りを始めるに当り、まず作業者は図示し
ないスイッチを操作して第1および第3のソレノイドバ
ルブ(SVI)(SV3)のみを開き、同時にバンチレ
バー(9)を進出させて糸(ト)とトラバースガイド(
5)との係合を解くと共にパンチガイド(10)を移動
させて糸(ト)を空のボビン0の前記スリット位置に導
き、更にサクションガン(12)によって糸(イ)の先
端を吸引しつつ該糸(ト)をスネルガイド(11)と係
合させる。このときのフリクションローラ(4)と空の
ボビン(B)との接E(Pl)は
Pl−W−(SPl+5P2)−100−(8o+5)
−15(#)となり、空のボビン(I3)は第2図に示
す如く比較的高い接圧(Pl)で充分な回転力を与えら
れる。この状態でスネルガイド(11)が矢印(13)
方向に回動されることにより、2点鎖線で示される糸(
ト)の一部が上記スリットと係合すると共にボビン(B
)とサクションガン(12)との間で糸切断がなされ、
ボビン(B)上へのパンチ巻が行われる。この間におい
て上記接圧(Pl)を比較的高く保つことにより、スリ
ットへの糸掛けが確実に行われる。To start winding the thread (G), the operator first operates a switch (not shown) to open only the first and third solenoid valves (SVI) (SV3), and at the same time advances the bunch lever (9). Thread (g) and traverse guide (
5), move the punch guide (10) to guide the thread (G) to the slit position of the empty bobbin 0, and then suction the tip of the thread (A) with the suction gun (12). At the same time, the thread (T) is engaged with the Snell guide (11). At this time, the contact E (Pl) between the friction roller (4) and the empty bobbin (B) is Pl-W-(SPl+5P2)-100-(8o+5)
-15 (#), and the empty bobbin (I3) is given sufficient rotational force with relatively high contact pressure (Pl) as shown in FIG. In this state, the snell guide (11) is indicated by the arrow (13)
By being rotated in the direction, the thread shown by the two-dot chain line (
A part of the bobbin (B) engages with the slit and a part of the bobbin (B
) and the suction gun (12), the thread is cut,
Punch winding onto the bobbin (B) is performed. By keeping the contact pressure (Pl) relatively high during this time, threading to the slit is reliably performed.
スネルガイド(11)の上記回動は図示しないリミット
スイッチによって検出され、これによりバンチレバー(
9)およびパンチガイド(10)が復帰すると共に、第
3のソレノイドバルブ(SV3)が閉じて第1および第
4のソレノイドバルブ(SVI ) (SV4 )のみ
が開き、糸(ト)はトラバースガイド(5)によって綾
振りされながらボビンの)上に巻取られ、通常の巻取り
が開始される。このときの接圧(P2)は
P2=W −(SP1+5P2)=100−(80+1
5)−5に9となり、比較的低い接圧(P2)で巻取り
が行われる。The rotation of the Snell guide (11) is detected by a limit switch (not shown), and the bunch lever (
9) and the punch guide (10) return, the third solenoid valve (SV3) closes and only the first and fourth solenoid valves (SVI) (SV4) open, and the thread (T) moves through the traverse guide ( 5) on the bobbin while being traversed, and normal winding begins. The contact pressure (P2) at this time is P2=W - (SP1+5P2)=100-(80+1
5) -5 becomes 9, and winding is performed with a relatively low contact pressure (P2).
巻取り開始後所定の時間が経過してボビン(B)上のパ
ッケージが所定の径に達すると、図示しないタイマの働
きによって第4のソレノイドバルブ(SV4)が閉じて
第1および第5のソレノイドバルブ(SVI ) (S
V5 )のみが開き。When the package on the bobbin (B) reaches a predetermined diameter after a predetermined period of time has passed after the start of winding, the fourth solenoid valve (SV4) is closed by the action of a timer (not shown), and the first and fifth solenoid valves are closed. Valve (SVI) (S
Only V5) opens.
P3=W−(SP1+5P2)−100−(80+10
)−10(#)となる接圧(P3)での巻取りが行われ
る。P3=W-(SP1+5P2)-100-(80+10
Winding is performed at a contact pressure (P3) of -10 (#).
巻取り終了がタイマによって検出されるとランプまたは
ブザー等の表示手段が働き、これにより作業者はフイ“
”を操作し7第2(7)’/L// 、。When the timer detects the end of winding, an indicator such as a lamp or buzzer is activated, allowing the operator to
” and operate 7th 2nd (7)'/L//,.
イドバルブ(SV2)を開き、スライドボックス(2)
を上昇させてフリクションローラ(4)とボビン(B)
とを比1[反させる。この状態で作業者は満巻となった
パッケージをボビン支持筒(7)から抜いて新たな空の
ボビンと交換し、再び上述した手段で糸の巻取りを行う
。Open the idle valve (SV2) and remove the slide box (2).
Raise the friction roller (4) and bobbin (B).
and the ratio 1 [reverse. In this state, the operator pulls out the fully wound package from the bobbin support tube (7), replaces it with a new empty bobbin, and again winds the yarn using the above-described means.
従ってフリクションローラ(4)とボビン(I3)との
間の接圧の変化は第2図に示すようになり、パッケージ
径が小さい間は低い接圧(P2)で、径が大きくなると
高い接圧〔P3)で巻取りが行われ、その結果得られた
パッケージはその内層から外層にかけてほぼ均一な硬さ
となる。上記接圧の各切替時点において、実際の接圧は
■で示すハンチングを生ずるが、これは極めて小さな程
度に留まり、実質的な悪影響を及ぼすことはない。Therefore, the change in the contact pressure between the friction roller (4) and the bobbin (I3) is as shown in Figure 2. When the package diameter is small, the contact pressure is low (P2), and as the diameter increases, the contact pressure increases. Winding is performed in [P3), and the resulting package has approximately uniform hardness from the inner layer to the outer layer. At each point in time when the contact pressure is switched, the actual contact pressure causes hunting shown by (■), but this remains to a very small extent and does not have a substantial adverse effect.
(rl)2:(r2)’(80X80) : (20X
20)=16 :1であるため、第2のシリンダ(S2
)におけるエアー圧の切替に伴うハンチングは極めて小
さく、第2図の実線で示す理想接圧に近いものとな゛る
。(rl)2:(r2)'(80X80): (20X
20) = 16:1, so the second cylinder (S2
) is extremely small, and is close to the ideal contact pressure shown by the solid line in FIG.
実験によれば、第1のシリンダ(Sl)自体の作用力を
切替えたときの最大ハンチングの値が45に9であった
のに対し、本装置ではこれを1.、5 kqまで減少す
ることができた。According to experiments, the maximum hunting value when switching the acting force of the first cylinder (Sl) itself was 45 to 9, but with this device, this was reduced to 1. , could be reduced to 5 kq.
また本装置によれば、第3ないし第5の減圧弁(PV3
)(PV4)(PV5)を上記理想接圧に設定すること
が容易となる。即ち、第2のシリンダ(S2)はその容
量が小さく作用力(SF3)の最大値が15kgに過ぎ
ないものであるため、第3ないし第5の圧力計(PM3
) (PM4 ) (PM5 )を最大指示値15k
qの、小さな圧力変化をも容易に読取り得るものとする
ことができるかむである。Further, according to the present device, the third to fifth pressure reducing valves (PV3
)(PV4)(PV5) can be easily set to the ideal contact pressure. That is, since the second cylinder (S2) has a small capacity and the maximum value of the acting force (SF3) is only 15 kg, the third to fifth pressure gauges (PM3) are
) (PM4) (PM5) to the maximum indicated value of 15k
It is possible to easily read even small pressure changes of q.
上述した本装置において、糸巻取り時の接圧切替はこれ
を3段階以上のものとすることによってパッケージの硬
さをより均一なものとする Lことができる。またシリ
ンダ(Sl)(S2)作動用の弁等は上記例以外の様々
なものを用いることができ、その接続も各種行い得る。In the present apparatus described above, the hardness of the package can be made more uniform by switching the contact pressure in three or more stages during yarn winding. Further, various valves and the like for operating the cylinders (Sl) (S2) can be used other than the above examples, and various connections can be made.
シリンダ(Sl)(S2)もその取付は方や容量等にお
いて設計変更が可能であり、油田シリンダを用いること
もできる。要するに本発明はフリクションローラとボビ
ンとの接圧を切替制御するに際し、これを1つのシリン
ダのみにおいて行うのでなく1作用力をより精密に切替
え得る別箇のシリンダを付設して行うようにしたもので
ある。The design of the cylinders (Sl) (S2) can also be changed in terms of their installation method, capacity, etc., and oil field cylinders can also be used. In short, when controlling the contact pressure between the friction roller and the bobbin by switching, the present invention does not perform this only in one cylinder, but by attaching a separate cylinder that can switch one acting force more precisely. It is.
発明の効果
本発明によれば、フリクションローラとボビンとの接圧
は第2の流体シリンダによって171替制御され、その
切替時に生ずる上記接圧のハンチングを抑制することが
できる。これにより上記接圧を切替える際の問題点が解
消され、従ってパッケージを一定硬さに巻取ることがで
き該パッケージの染色ムラをなくすことができるものと
なった。Effects of the Invention According to the present invention, the contact pressure between the friction roller and the bobbin is controlled by switching 171 by the second fluid cylinder, and hunting of the contact pressure that occurs at the time of switching can be suppressed. This solves the problem of switching the contact pressure, and it is therefore possible to wind up the package to a constant hardness, thereby eliminating uneven dyeing of the package.
第1図は本発明を適用したティクアップ装置の概略を示
す図、第2図は接圧の変化を示すタイムチャートである
。
(4)・・・・フリクションローラ、 β)・・・・ボ
ビン(PI ) CF2 ) (P3 )・・・・接圧
(Sl )・・・・第1の流体シリンダ(S2)・・・
・第2の流体シリンダ、(ト)・・・・糸。FIG. 1 is a diagram schematically showing a pickup device to which the present invention is applied, and FIG. 2 is a time chart showing changes in contact pressure. (4)...Friction roller, β)...Bobbin (PI) CF2) (P3)...Contact pressure (Sl)...First fluid cylinder (S2)...
-Second fluid cylinder, (g)...thread.
Claims (1)
して該ボビンを従動回転させる糸巻爪装置において、上
記ローラとボビンとの接圧を所定圧に維持する第1の流
体シリンダと、上記接圧を切替制御する第2の流体シリ
ンダとを具えた糸巻爪装置。A thread winding claw device that presses a rotating friction roller against a bobbin for winding yarn to rotate the bobbin in a driven manner, comprising: a first fluid cylinder that maintains a contact pressure between the roller and the bobbin at a predetermined pressure; and a second fluid cylinder for switching control.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11416484A JPS60258070A (en) | 1984-06-04 | 1984-06-04 | Bobbin winder complete |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11416484A JPS60258070A (en) | 1984-06-04 | 1984-06-04 | Bobbin winder complete |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60258070A true JPS60258070A (en) | 1985-12-19 |
Family
ID=14630763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11416484A Pending JPS60258070A (en) | 1984-06-04 | 1984-06-04 | Bobbin winder complete |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60258070A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63208479A (en) * | 1987-02-20 | 1988-08-29 | Teijin Seiki Co Ltd | Winder contact pressure control device |
EP0618165A2 (en) * | 1993-03-15 | 1994-10-05 | Toray Engineering Co., Ltd. | Method for controlling the drive of a yarn winder and the yarn winder thereof |
US5762276A (en) * | 1992-10-05 | 1998-06-09 | Toray Engineering Co., Ltd. | Yarn winding roller drive |
-
1984
- 1984-06-04 JP JP11416484A patent/JPS60258070A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63208479A (en) * | 1987-02-20 | 1988-08-29 | Teijin Seiki Co Ltd | Winder contact pressure control device |
US5762276A (en) * | 1992-10-05 | 1998-06-09 | Toray Engineering Co., Ltd. | Yarn winding roller drive |
EP0618165A2 (en) * | 1993-03-15 | 1994-10-05 | Toray Engineering Co., Ltd. | Method for controlling the drive of a yarn winder and the yarn winder thereof |
EP0618165A3 (en) * | 1993-03-15 | 1995-02-15 | Toray Eng Co Ltd | Method for controlling the drive of a yarn winder and the yarn winder thereof. |
US5605294A (en) * | 1993-03-15 | 1997-02-25 | Toray Engineering Co., Ltd. | Method for controlling the drive of a yarn winder, and the yarn winder thereof |
US5934601A (en) * | 1993-03-15 | 1999-08-10 | Toray Engineering Co., Ltd. | Method for controlling the drive of a yarn winder, and the yarn winder thereof |
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