JP2007039824A - Apparatus for drawing out yarn without twisting - Google Patents

Apparatus for drawing out yarn without twisting Download PDF

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JP2007039824A
JP2007039824A JP2005223048A JP2005223048A JP2007039824A JP 2007039824 A JP2007039824 A JP 2007039824A JP 2005223048 A JP2005223048 A JP 2005223048A JP 2005223048 A JP2005223048 A JP 2005223048A JP 2007039824 A JP2007039824 A JP 2007039824A
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yarn
unwinding
bobbin
wound body
wound
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Kazuyoshi Kida
一吉 木田
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for drawing out a yarn from a bobbin or another yarn wound body in the winding axis direction, with which a yarn such as tape yarn, flat string, a multifilament yarn having a flat cross section, etc., in the winding axis direction of the bobbin without twisting (torsion). <P>SOLUTION: The apparatus positively rotates the bobbin 5 by a variable speed motor 2 so that an unwinding position 14 in the circumference direction in unwinding a yarn 13 from the bobbin 5 is not changed and the drawing out speed of the yarn 13 is coincident with the circumferential speed of the bobbin 5. The apparatus is equipped with a detector 9 for detecting deviation in the circumference direction of the unwinding position 14 of the yarn from the bobbin 5, detects the displacement of the detector by a sensor 10 and controls the rotation of the motor 2 for driving the bobbin to cancel the displacement so as to deal with the diameter change of the bobbin 5 and the change of the drawing out speed of the unwinding yarn 13a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、ボビンその他の糸条の巻装体から巻軸方向に糸条を引出す装置に関するもので、例えばテープヤーン、平紐、偏平断面のマルチフィラメント糸などの糸条を撚り（捻じれ）を生じさせないで巻装体の巻軸方向に引出す装置に関するものである。   The present invention relates to an apparatus for drawing a yarn from a bobbin or other yarn winding body in a winding axis direction. For example, a yarn such as a tape yarn, a flat cord, a multifilament yarn having a flat cross section is twisted (twisted). The present invention relates to a device that pulls out in the winding axis direction of the wound body without causing it.

平紐や炭素繊維の偏平なマルチフィラメント糸などを製織する際には、糸条の平らな面を織布の面方向にして経糸や緯糸を織機に供給する必要がある。糸条はボビンなどの巻装体として流通しているので、撚りを生じさせないで糸条を供給するためには、巻装体から無撚状態で糸条を引出す必要がある。   When weaving flat cords or flat multifilament yarns of carbon fibers, it is necessary to supply warp and weft yarns to the loom with the flat surface of the yarn in the direction of the woven fabric. Since the yarn is distributed as a wound body such as a bobbin, in order to supply the yarn without causing twisting, it is necessary to draw the yarn from the wound body in a non-twisted state.

巻装体からの糸条の引出し方法としては、巻軸方向に引出す方法と接線方向に引出す方法とがある。巻装体から巻軸方向に糸条を引出すと、引出される糸条（解舒糸）に一巻き長さ当り１回の撚りが発生する。撚糸機は糸条を巻軸方向に引出しつつ更に巻装体を巻軸回りに積極的に回転させることにより、解舒糸に所望の撚りを与えるものである。これに対して糸条を巻装体の接線方向に引出してやれば、糸条に撚りを生じさせないで解舒することができる。従って、糸条が無撚状態で巻装されていれば、これを接線方向に引出すことによって、織機などに撚りのない糸を供給することができる。   As a method for drawing the yarn from the wound body, there are a method for drawing in the winding axis direction and a method for drawing in the tangential direction. When the yarn is pulled out from the wound body in the winding axis direction, the drawn yarn (unwinding yarn) is twisted once per winding length. The twisting machine gives a desired twist to the unwinding yarn by actively rotating the wound body around the winding axis while drawing the yarn in the winding axis direction. On the other hand, if the yarn is pulled out in the tangential direction of the wound body, the yarn can be unwound without causing twisting of the yarn. Therefore, if the yarn is wound in a non-twisted state, the yarn without twisting can be supplied to a loom or the like by drawing it in the tangential direction.

すなわち、偏平糸を無撚状態で引出したいときは、偏平糸が無撚状態で巻かれた巻装体から糸条を接線方向に引出してやればよく、従来織機などへの偏平糸の供給は、このような方法で行われていた。
特開平６‐１１６８３７号公報 特開２００１‐１３１８４６号公報 That is, when it is desired to draw the flat yarn in a non-twisted state, it is only necessary to draw the yarn in a tangential direction from the wound body in which the flat yarn is wound in a non-twisted state. It was done in this way.
JP-A-6-116837 JP 2001-131844 A

糸条を接線方向に引出すと、その引出し速度と周速が一致するように巻装体は回転する。このとき、糸の引出し速度に脈動があったり、糸が伸縮したりすると、巻装体は慣性により一定速度で回転しようとするので、解舒糸に緩みや波打ち現象が生じ、円滑な糸の供給の妨げとなり、製織する糸条に張力むらや測長むらが発生する。   When the yarn is pulled out in the tangential direction, the wound body rotates so that the drawing speed and the peripheral speed coincide with each other. At this time, if there is a pulsation in the drawing speed of the yarn or if the yarn expands or contracts, the wound body tries to rotate at a constant speed due to inertia. This hinders the supply and causes uneven tension and uneven length in the weaving yarn.

これを防止する一般的な方法は、巻装体の回転にブレーキをかけ、糸がある程度の張力を保持した状態で解舒されるようにすることである。しかし、巻装体は解舒されるにつれて直径が小さくなって行くので、ブレーキ力を一定にすると、巻装体の径が小さくなるにつれて、解舒糸の張力が大きくなるという問題が生ずる。そこで、巻装体の外周にブレーキローラを接触回転させて、巻装体の径が変化しても解舒糸の張力が略一定に保持されるようにするなどの技術手段が採用されている。   A common way to prevent this is to brake the rotation of the wound body so that the yarn is unwound while maintaining some tension. However, since the diameter of the wound body becomes smaller as the winding body is unwound, if the brake force is made constant, there arises a problem that the tension of the unwinding yarn increases as the diameter of the wound body decreases. Therefore, technical means such as rotating the brake roller in contact with the outer periphery of the wound body so that the tension of the unwinding yarn is maintained substantially constant even when the diameter of the wound body changes is adopted. .

接線方向の解舒に比べて巻軸方向の解舒は、糸の張力変動が少なく、引出し速度の脈動や糸の伸縮が巻装体からの糸の解舒位置が円周方向にずれることによって吸収されるので、より安定した状態で糸条の供給ができるという長所がある。しかし、前述したように、巻軸方向の解舒は、引出し長さ一周当り１回の撚りがかかり、巻装体の径が小さくなるに従って撚り数も増大してくる。   Compared to tangential unwinding, unwinding in the winding axis direction is less affected by fluctuations in the tension of the yarn, and the pulsation of the drawing speed and the expansion and contraction of the thread are caused by the unwinding position of the thread from the wound body being shifted in the circumferential direction Since it is absorbed, the yarn can be supplied in a more stable state. However, as described above, in the unwinding in the winding axis direction, one twist per turn of the drawing length is applied, and the number of twists increases as the diameter of the wound body decreases.

この発明は、偏平糸が巻装された巻装体から糸条を無撚状態で巻軸方向に引出す技術手段を提供することを課題としている。   An object of the present invention is to provide technical means for drawing a yarn in a winding direction in a non-twisted state from a wound body around which a flat yarn is wound.

この発明は、巻装体５から糸条１３を解舒するときの円周方向の解舒位置１４が変化しないように糸条１３の引出し速度と巻装体５の周速が一致するように可変速モータ２で巻装体５を積極的に回転させることにより、上記課題を解決したものである。   In the present invention, the drawing speed of the yarn 13 and the circumferential speed of the wound body 5 are matched so that the unwinding position 14 in the circumferential direction when the yarn 13 is unwound from the wound body 5 does not change. The above-mentioned problem is solved by positively rotating the wound body 5 with the variable speed motor 2.

巻装体５は糸条１３が引き出されるにつれて径が小さくなるので、引出し速度が一定であっても巻装体５の回転は逓増させてゆく必要がある。また、糸条の引出し速度の細かい脈動は、解舒位置１４が円周方向に振れることによって吸収されるが、糸条１３ａの引出し速度が変化したときは、巻装体５の回転数を変えてやらねばならない。そのため、この発明の装置では、巻装体５からの糸条の解舒位置１４の円周方向の偏倚を検出する検出体９、２５を設け、この検出体の変位をセンサ１０、３０で検出して、その変位を打ち消すように巻装体駆動モータ２の回転を制御することにより、巻装体５の径の変化や解舒糸１３ａの引出し速度の変化に対応するようにしている。   Since the diameter of the wound body 5 decreases as the yarn 13 is pulled out, it is necessary to increase the rotation of the wound body 5 even if the drawing speed is constant. Further, the fine pulsation of the yarn drawing speed is absorbed by the unwinding position 14 being swung in the circumferential direction, but when the drawing speed of the yarn 13a is changed, the number of rotations of the wound body 5 is changed. I have to do it. Therefore, in the apparatus of the present invention, detection bodies 9 and 25 for detecting the circumferential deviation of the unwinding position 14 of the yarn from the wound body 5 are provided, and the displacement of the detection body is detected by the sensors 10 and 30. Then, by controlling the rotation of the winding body drive motor 2 so as to cancel the displacement, it is possible to cope with a change in the diameter of the winding body 5 and a change in the drawing speed of the unwinding yarn 13a.

検出体としては、巻装体５の軸方向に昇降する昇降筒９や巻装体５の軸回りに回動するフライヤー２５を用いるのが便利であるが、複数の光電センサを用いて糸条の解舒位置１４を検出する方法を用いることもできる。   As the detection body, it is convenient to use a lifting cylinder 9 that moves up and down in the axial direction of the wound body 5 and a flyer 25 that rotates around the axis of the wound body 5, but a plurality of photoelectric sensors are used for the yarn. It is also possible to use a method of detecting the unwinding position 14.

この出願の請求項１の発明に係る糸条の無撚引出し装置は、ボビンその他の糸の巻装体から糸条を当該巻装体の軸方向に引出す解舒装置において、巻装体５を軸回りに回転駆動する可変速モータ２と、巻装体から解舒された解舒糸１３ａを案内する固定の糸ガイド１１、２８と、この糸ガイドと巻装体５との間に設けられて当該巻装体からの糸条の円周方向の解舒位置１４の変化により変位する検出体９、２５と、この検出体の変位を検出する変位センサ１０、３０と、当該変位センサの検出信号を受けて当該変位を打ち消す方向に前記可変速モータを速度制御する制御器１２とを備えていることを特徴とするものである。   The untwisted drawing apparatus for a yarn according to the invention of claim 1 of the present application is an unwinding device for drawing a yarn from a bobbin or other wound body of a yarn in the axial direction of the wound body. A variable speed motor 2 that rotates around the shaft, a fixed yarn guide 11 and 28 that guides the unwinding yarn 13a unwound from the wound body, and the yarn guide and the wound body 5 are provided. Detecting bodies 9 and 25 that are displaced by a change in the unwinding position 14 in the circumferential direction of the yarn from the wound body, displacement sensors 10 and 30 that detect the displacement of the detecting body, and detection of the displacement sensor And a controller 12 for controlling the speed of the variable speed motor in a direction to cancel the displacement in response to the signal.

この出願の請求項２の発明に係る糸条の無撚引出し装置は、糸条を巻装したボビンその他の巻装体から糸条を当該巻装体の軸方向に引出す解舒装置において、巻装体５を軸回りに回転駆動する可変速モータ２と、糸条引き出し側の巻装体５の軸方向延長線上に設けられて回転かつ自由昇降可能な昇降筒９と、この昇降筒の下流側で解舒糸１３ａを案内する固定の糸ガイド１１と、前記昇降筒の昇降を検出するセンサ１０と、当該センサの検出信号を受けて前記昇降筒の上昇を抑制するように前記可変速モータを速度制御する制御器１２とを備えていることを特徴とするものである。   The untwisted drawing apparatus for a yarn according to the invention of claim 2 of the present application is an unwinding device that draws the yarn in the axial direction of the wound body from a bobbin or other wound body around which the thread is wound. A variable speed motor 2 that rotationally drives the body 5 about its axis, a lifting cylinder 9 that is provided on an extension line in the axial direction of the winding body 5 on the yarn pull-out side and that can rotate and freely move up and down, and downstream of this lifting cylinder A fixed yarn guide 11 that guides the unwinding yarn 13a on the side, a sensor 10 that detects the raising and lowering of the lifting cylinder, and the variable speed motor that receives the detection signal of the sensor and suppresses the lifting of the lifting cylinder. And a controller 12 for controlling the speed of the vehicle.

また、この出願の請求項３の発明に係る糸条の無撚引出し装置は、糸条を巻装した巻装体から糸条を当該巻装体の軸方向に引出す解舒装置において、巻装体５を軸回りに回転駆動する可変速モータ２と、先端に解舒糸１３ａを案内する糸目１７を備え、前記巻装体の糸引出し端に当該巻装体の軸回りに自由回転可能かつ前記巻装体の回転方向に付勢して設けられたたフライヤー２５と、このフライヤーの下流側で解舒糸１３ａを案内する固定の糸ガイド２８と、前記フライヤーの回動を検出するセンサ１０、３０と、当該センサの検出信号を受けて前記フライヤーの回動を抑制するように前記可変速モータを速度制御する制御器１２とを備えていることを特徴とするものである。   In addition, the untwisted drawing apparatus for a yarn according to the invention of claim 3 of the present application is the unwinding apparatus for drawing the yarn in the axial direction of the wound body from the wound body wound with the yarn. A variable speed motor 2 for rotationally driving the body 5 about an axis, and a thread 17 for guiding the unwinding yarn 13a at the tip, and can freely rotate around the axis of the wound body at the thread withdrawal end of the wound body; A flyer 25 that is urged in the rotational direction of the wound body, a fixed yarn guide 28 that guides the unwinding yarn 13a on the downstream side of the flyer, and a sensor 10 that detects the rotation of the flyer. 30 and a controller 12 for controlling the speed of the variable speed motor so as to suppress the rotation of the fryer upon receiving a detection signal of the sensor.

この発明の解舒装置によれば、ボビンその他の糸の巻装体５からマルチフィラメント糸などの偏平糸を無撚状態で巻軸方向に引出すことができる。糸条の引出し方向が巻軸方向であるため、引出し速度の脈動や張力の脈動が解舒位置１４が円周方向に振れ動くことで吸収され、安定した糸条の供給が可能であるという特徴がある。そして、解舒された糸条の撚りを皆無とすることができるので、無撚状態で巻装された炭素繊維のマルチフィラメント糸などの偏平糸を無撚状態で織機などに供給する際の糸解舒装置として好適であるという効果がある。   According to the unwinding device of the present invention, a flat yarn such as a multifilament yarn can be pulled out in the winding axis direction from the bobbin or other yarn winding body 5 in a non-twisted state. Since the drawing direction of the yarn is the winding axis direction, the pulsation of the drawing speed and the pulsation of the tension are absorbed by the unwinding position 14 swinging in the circumferential direction, and a stable supply of the yarn is possible. There is. And since the untwisted yarn can be completely twisted, the yarn used when supplying a flat yarn such as a carbon fiber multifilament yarn wound in an untwisted state to a loom or the like in an untwisted state There is an effect that it is suitable as an unwinding device.

以下、図面を参照して、この発明の実施形態を説明する。図１はこの発明の第１実施形態を示す図で、１ａ、１ｂは部分的に示す機械フレーム（不動部材）、２は機械フレーム１ａに装着された可変速モータ、３は可変速モータ２の出力軸２ａに固定されたボビン軸、４はボビン軸３と一体の回転枠、５はボビン軸３に相対回転不能に嵌着されたボビン、６はボビン５をボビン軸３に固定しているキャップ、７は回転枠４の上端円周に内側稍上方を向けて植立されたブラシ、８は上端を機械フレーム１ｂに固着されてボビン軸３と同一軸線上に位置するガイド軸、９はガイド軸８に昇降自在かつ回転自在に装着された昇降筒、１０は昇降筒９の昇降を検出する可変抵抗器、１１は機械フレーム１ｂに固定された糸ガイド、１２は可変速モータ２の速度制御器である。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a first embodiment of the present invention. 1a and 1b are partially shown machine frames (non-moving members), 2 is a variable speed motor mounted on the machine frame 1a, and 3 is a variable speed motor 2. A bobbin shaft fixed to the output shaft 2 a, 4 is a rotating frame integrated with the bobbin shaft 3, 5 is a bobbin fitted to the bobbin shaft 3 so as not to be relatively rotatable, and 6 is fixing the bobbin 5 to the bobbin shaft 3. A cap, 7 is a brush planted on the circumference of the upper end of the rotating frame 4 with the upper side of the inner frame facing upward, 8 is a guide shaft whose upper end is fixed to the machine frame 1b and located on the same axis as the bobbin shaft 3, and 9 A lifting cylinder mounted on the guide shaft 8 so as to be movable up and down and rotatable 10 is a variable resistor for detecting the elevation of the lifting cylinder 9, 11 is a thread guide fixed to the machine frame 1 b, and 12 is a speed of the variable speed motor 2. It is a controller.

可変速モータ２は、好ましくはインバータモータ、より好ましくは直流サーボモータであり、出力軸２ａを垂直方向上向きにして装着されている。ボビン軸３は、この出力軸２ａに嵌着して固定されており、回転枠４はボビン軸３の根元部に固定されて一体化されている。ボビン軸３には、偏平糸１３を巻装したボビン５が嵌装され、ボビン軸３の先端に嵌合したキャップ６によりボビン軸３と共に回転するように固定されている。回転枠４は、リング状の上縁リング４ａを備えており、この上縁リングに基端を固定したブラシ７がボビン５の外周と上縁リング４ａとの間に形成されるリング状の糸引出口をさえぎるように先端を内側稍上方に向けて植立されている。   The variable speed motor 2 is preferably an inverter motor, more preferably a DC servo motor, and is mounted with the output shaft 2a facing upward in the vertical direction. The bobbin shaft 3 is fitted and fixed to the output shaft 2a, and the rotating frame 4 is fixed to and integrated with the root portion of the bobbin shaft 3. A bobbin 5 around which a flat thread 13 is wound is fitted on the bobbin shaft 3, and is fixed so as to rotate together with the bobbin shaft 3 by a cap 6 fitted to the tip of the bobbin shaft 3. The rotary frame 4 includes a ring-shaped upper edge ring 4a, and a brush 7 having a base end fixed to the upper edge ring is formed between the outer periphery of the bobbin 5 and the upper edge ring 4a. It is planted with its tip facing the upper side of the ridge so as to block the exit.

キャップ６は、上面が開口した中空の部材で、機械フレーム１ｂに上端を固定したガイド軸８の下端がその中空部６ａ内に延びている。ガイド軸８には、上下端に設けた軸受材１５ａ、１５ｂでガイド軸８に沿って自由昇降かつ自由回転自在に昇降筒９が装着されている。定常状態では、昇降筒９はガイド軸８の下端に固定したストッパ板１６で支持されて下降端に位置している。昇降筒９の上端の軸受部材１５ａは、円周１箇所に突出部が設けられ、この突出部に糸目１７が設けられている。また、昇降筒９には、可変抵抗器１０の操作軸１０ｂに基端を固定したアーム１０ａの先端が係止されている。   The cap 6 is a hollow member whose upper surface is open, and the lower end of the guide shaft 8 whose upper end is fixed to the machine frame 1b extends into the hollow portion 6a. An elevating cylinder 9 is mounted on the guide shaft 8 so as to freely move up and down and freely rotate along the guide shaft 8 by bearing materials 15a and 15b provided at the upper and lower ends. In the steady state, the lifting cylinder 9 is supported by a stopper plate 16 fixed to the lower end of the guide shaft 8 and is located at the lower end. The bearing member 15a at the upper end of the lifting cylinder 9 is provided with a protruding portion at one place on the circumference, and a thread 17 is provided on this protruding portion. In addition, the tip of an arm 10 a whose base end is fixed to the operation shaft 10 b of the variable resistor 10 is locked to the lifting cylinder 9.

可変速モータ２には速度制御器１２が連結されており、この速度制御器１２は、可変抵抗器のアーム１０ａが上方に揺動したときに可変速モータ２を増速し、アーム１０ａが下方に揺動したときに可変速モータ２を減速する方向に制御している。   A speed controller 12 is connected to the variable speed motor 2, and the speed controller 12 increases the speed of the variable speed motor 2 when the arm 10a of the variable resistor swings upward, and the arm 10a moves downward. The variable speed motor 2 is controlled so as to decelerate when it is swung.

ボビン５から解舒された解舒糸１３ａは、ブラシ７の間を通って昇降筒の糸目１７を通り、固定糸ガイド１１に案内されて、図示しないたとえば織機の緯糸貯留装置へと供給されている。解舒糸１３ａの引出し力は、緯糸貯留装置のドラムの回転力により与えられている。解舒糸１３ａには、ブラシ７を通過するときの抵抗により張力が付与されている。   The unwinding yarn 13a unwound from the bobbin 5 passes between the brushes 7, passes through the thread 17 of the lifting cylinder, is guided by the fixed yarn guide 11, and is supplied to a weft storage device of a loom (not shown), for example. Yes. The drawing force of the unwinding yarn 13a is given by the rotational force of the drum of the weft storage device. Tension is applied to the unwinding yarn 13 a by resistance when passing through the brush 7.

解舒糸１３ａの引出しと同時に可変速モータ２を予想される同期回転数より若干低く設定した回転数で回転を開始させる。解舒糸１３ａの引出し速度と可変速モータ２の回転が同期していれば、ボビン５から解舒された糸条１３ａは、昇降筒９に巻きつくことなく糸目１７及び固定糸ガイド１１を通って引出される。可変速モータ２の回転数が解舒糸１３ａの引出し速度より遅いと、ボビン５からの解舒糸１３ａの解舒位置１４がボビン５の外周上を移動して、その結果、解舒糸１３ａがボビン５と糸ガイド１１との間で昇降筒９にスパイラル状に巻きつけられる。   Simultaneously with the withdrawal of the unwinding yarn 13a, the rotation of the variable speed motor 2 is started at a rotational speed set slightly lower than the expected synchronous rotational speed. If the drawing speed of the unwinding yarn 13a and the rotation of the variable speed motor 2 are synchronized, the yarn 13a unwound from the bobbin 5 passes through the thread 17 and the fixed yarn guide 11 without being wound around the lifting cylinder 9. Pulled out. When the rotational speed of the variable speed motor 2 is slower than the drawing speed of the unwinding yarn 13a, the unwinding position 14 of the unwinding yarn 13a from the bobbin 5 moves on the outer periphery of the bobbin 5, and as a result, the unwinding yarn 13a. Is wound around the lifting cylinder 9 between the bobbin 5 and the thread guide 11 in a spiral shape.

この巻きつけ角θが解舒糸１３ａと昇降筒９の外周面との摩擦係数によって定まる一定の限度を超えると、昇降筒９は上方へ移動する解舒糸１３ａの摩擦力により、ガイド軸８に沿って上方へ移動する。この上昇移動は、可変抵抗器のアーム１０ａを上昇させ、速度制御器１２は可変速モータ２を設定された微小量だけ増速する。この増速により、昇降筒９に巻回されていた解舒糸１３ａが若干巻き戻され、解舒糸１３ａから昇降筒９に付与されていた上方への摩擦力が減少するので、昇降筒９は下降し、可変抵抗器のアーム１０ａが下降して、可変速モータ２を減速させる。   When the winding angle θ exceeds a certain limit determined by the coefficient of friction between the unwinding yarn 13a and the outer peripheral surface of the lifting cylinder 9, the lifting cylinder 9 is guided by the frictional force of the unwinding yarn 13a moving upward. Move upward along This upward movement raises the arm 10a of the variable resistor, and the speed controller 12 increases the speed of the variable speed motor 2 by a set minute amount. By this speed increase, the unwinding yarn 13a wound around the lifting cylinder 9 is slightly unwound, and the upward frictional force applied to the lifting cylinder 9 from the unwinding thread 13a is reduced. Is lowered, the arm 10a of the variable resistor is lowered, and the variable speed motor 2 is decelerated.

解舒糸１３ａが引出されるに従って、ボビン５の径が小さくなるので、解舒糸１３ａの引出し速度に対する可変速モータ２の回転数には遅れが生じてくる。この遅れが生ずると、昇降筒９への解舒糸１３ａの巻きつけ角が大きくなり、昇降筒９が上昇して可変抵抗器のアーム１０ａが上昇し、可変速モータ２を増速する。そして、この増速により、可変速モータ２の回転が糸の引出し速度に追いつき、可変速モータ２は定速回転に移る。   As the unwinding yarn 13a is pulled out, the diameter of the bobbin 5 is reduced, so that the rotational speed of the variable speed motor 2 is delayed with respect to the drawing speed of the unwinding yarn 13a. When this delay occurs, the winding angle of the unwinding yarn 13a around the lifting cylinder 9 is increased, the lifting cylinder 9 is raised, the arm 10a of the variable resistor is raised, and the variable speed motor 2 is accelerated. As a result of this speed increase, the rotation of the variable speed motor 2 catches up with the yarn drawing speed, and the variable speed motor 2 moves to a constant speed rotation.

このようにしてボビン５からの糸条１３の円周方向の解舒位置１４がほぼ定位置に保たれ、解舒糸１３ａは撚りを生ずることなくボビン５からその巻軸方向に引出される。なお、上記の実施例では、昇降筒９の昇降を可変抵抗器１０で検出する例を示したが、近接センサで検出する構造とすることもできる。   In this way, the unwinding position 14 in the circumferential direction of the yarn 13 from the bobbin 5 is maintained at a substantially fixed position, and the unwinding thread 13a is pulled out from the bobbin 5 in the winding axis direction without causing twisting. In the above-described embodiment, an example in which the raising / lowering of the lifting cylinder 9 is detected by the variable resistor 10 has been described, but a structure in which it is detected by a proximity sensor may be used.

図２はこの発明の第２実施形態を示した図である。図中、１ａ、１ｂは機械フレーム、２は可変速モータ、３はボビン軸、５はボビンであり、これらは第１実施形態のものと異なるところはない。第２実施形態のボビン軸３には、第１実施形態のような回転枠４は設けられておらず、基端に鍔２１のみを備えている。ボビン５を固定するキャップ２２は、偏平な形状でその上面が鉄板の円板面となっている。   FIG. 2 is a view showing a second embodiment of the present invention. In the figure, 1a and 1b are machine frames, 2 is a variable speed motor, 3 is a bobbin shaft, and 5 is a bobbin, which are not different from those of the first embodiment. The bobbin shaft 3 of the second embodiment is not provided with the rotating frame 4 as in the first embodiment, and is provided with only the flange 21 at the base end. The cap 22 for fixing the bobbin 5 has a flat shape and an upper surface thereof is a disk surface of an iron plate.

ボビン軸３の軸芯延長上には、上端を機械フレーム１ｂに固定して、キャップ２２の直上まで延びる軸受パイプ２３が固定されている。この軸受パイプ２３にはセンサ軸２４が回転自在に挿通され、このセンサ軸の下端にフライヤー２５が固定されている。フライヤー２５はボビン５の上端外周近くにまで延びる腕２５ａを備えており、その先端には解舒糸１３ａを挿通する糸目１７が設けられている。フライヤー２５の基端には、キャップ２２の上面を向く磁石２５ｂが設けられており、ボビン５が回転したときに、フライヤー２５はボビン５の回転方向に弱い力で付勢される。   A bearing pipe 23 is fixed on the extension of the axis of the bobbin shaft 3, and the upper end of the bobbin shaft 3 is fixed to the machine frame 1 b so as to extend right above the cap 22. A sensor shaft 24 is rotatably inserted into the bearing pipe 23, and a fryer 25 is fixed to the lower end of the sensor shaft. The flyer 25 is provided with an arm 25a extending to the vicinity of the outer periphery of the upper end of the bobbin 5, and a thread line 17 through which the unwinding thread 13a is inserted is provided at the tip. A magnet 25b facing the upper surface of the cap 22 is provided at the base end of the flyer 25. When the bobbin 5 rotates, the flyer 25 is biased with a weak force in the rotation direction of the bobbin 5.

センサ軸２４の上端は、歯車２６ａ、２６ｂを介して可変抵抗器１０の操作軸１０ｂに連結されている。可変速モータ２に接続された速度制御器１２は、可変抵抗器１０の抵抗変化に対応して、可変速モータ２を増減速させる。   The upper end of the sensor shaft 24 is connected to the operation shaft 10b of the variable resistor 10 through gears 26a and 26b. The speed controller 12 connected to the variable speed motor 2 increases or decreases the speed of the variable speed motor 2 in accordance with the resistance change of the variable resistor 10.

ボビン５から解舒された解舒糸１３ａは、フライヤーの糸目１７を通って機械フレーム１ｂに固定した糸ガイド２８を経て、たとえば前述したような緯糸貯留装置に供給されている。   The unwinding yarn 13a unwound from the bobbin 5 is supplied to, for example, the weft storage device as described above through the yarn guide 28 fixed to the machine frame 1b through the yarn 17 of the flyer.

解舒糸１３ａの引出しが開始されると同時に、可変速モータ２を予想される設定回転数で回転を開始する。解舒糸１３ａの引出し速度に比べて可変速モータ２の回転数が遅いときは、ボビン５からの解舒糸１３ａの解舒位置がボビン円周の遅れ方向（解舒される糸が巻きついている方向）に移動する。この移動がフライヤー２５を同方向に回転させ、この回転が可変抵抗器の操作軸１０ｂに伝達されて、可変抵抗器１０の抵抗値が変化する。この変化を受けて速度制御器１２は可変速モータ２を増速させる。   At the same time that the unwinding of the unwinding yarn 13a is started, the variable speed motor 2 is started to rotate at a set rotational speed that is expected. When the rotational speed of the variable speed motor 2 is slower than the unwinding speed of the unwinding yarn 13a, the unwinding position of the unwinding yarn 13a from the bobbin 5 is in the delay direction of the bobbin circumference (the yarn to be unwound is wound. Direction). This movement rotates the fryer 25 in the same direction, and this rotation is transmitted to the operating shaft 10b of the variable resistor, so that the resistance value of the variable resistor 10 changes. In response to this change, the speed controller 12 increases the speed of the variable speed motor 2.

一方、可変速モータ２の回転速度が解舒糸１３ａの引出し速度に比べて速いときは、解舒糸１３ａの解舒位置が進み方向（遅れ方向と反対の方向）に移動する。この移動は、フライヤー２５を前記と逆方向に回動させ、可変抵抗器の操作軸１０ｂを同様に逆方向に回動する。そのため、速度制御器１２は可変速モータ２を減速する方向に制御する。   On the other hand, when the rotational speed of the variable speed motor 2 is higher than the drawing speed of the unwinding yarn 13a, the unwinding position of the unwinding yarn 13a moves in the advance direction (the direction opposite to the delay direction). This movement causes the flyer 25 to rotate in the opposite direction, and the operation shaft 10b of the variable resistor to rotate in the opposite direction as well. Therefore, the speed controller 12 controls the variable speed motor 2 in the direction of decelerating.

糸条１３の引出しに伴ってボビン５の直径が小さくなると、フライヤー２５は遅れ方向に揺動する傾向となるので、可変速モータ２はボビン５の径が小さくなるに従って増速することとなる。   When the diameter of the bobbin 5 decreases as the yarn 13 is pulled out, the flyer 25 tends to swing in the delay direction, so that the variable speed motor 2 increases as the diameter of the bobbin 5 decreases.

以上の制御により、フライヤー２５の腕２５ａの方向がほぼ一定の方向となるように、換言すればボビン５からの糸条の円周方向の解舒位置１４がほぼ定位置となるように、可変速モータ２の回転数が制御され、その結果、解舒糸１３ａは撚りを生じないでボビン５の巻軸方向に引出されることになる。   By the above control, the direction of the arm 25a of the flyer 25 can be set to a substantially constant direction, in other words, the unwinding position 14 in the circumferential direction of the yarn from the bobbin 5 can be set to a substantially fixed position. The number of rotations of the transmission motor 2 is controlled, and as a result, the unwinding yarn 13a is drawn in the winding axis direction of the bobbin 5 without causing twisting.

図３は第２実施形態におけるフライヤー２５の揺動角を検出する他の手段を示した概略図で、フライヤー２５の腕２５ａの反対側に検出針２９を設け、検出針２９の揺動を円弧状に配置した反射型光電センサ群３０によって検出する構造である。どのセンサが検出針２９を検出したかによって、フライヤー２５の定常位置からのずれが検出されるので、そのずれ量に応じて速度制御器１２が可変速モータ２を加減速するのである。   FIG. 3 is a schematic view showing another means for detecting the swing angle of the flyer 25 in the second embodiment. A detection needle 29 is provided on the opposite side of the arm 25a of the flyer 25, and the swing of the detection needle 29 is made circular. This structure is detected by the reflective photoelectric sensor group 30 arranged in an arc. Since the deviation from the steady position of the fryer 25 is detected depending on which sensor has detected the detection needle 29, the speed controller 12 accelerates or decelerates the variable speed motor 2 according to the deviation amount.

この発明の装置は、糸条を巻装したボビンその他の巻装体から当該糸条を撚り（捻じれ）を生ずることなく巻軸方向に引出すことができるので、たとえば炭素繊維のマルチフィラメント糸その他の偏平糸を織機の緯入れ装置に供給する場合のように、巻装体から糸条を僅かなねじれも生じさせないで、かつ脈動等に起因する緩みを生じさせないで安定に引出したいときに、特に有効に利用することができる。   The apparatus of the present invention can draw the yarn from the bobbin or other wound body around which the yarn is wound without causing twisting (twisting), so that, for example, a carbon fiber multifilament yarn or the like When supplying a flat yarn of a weaving machine to a weft insertion device of a loom, when it is desired to stably pull out the yarn from the wound body without causing slight twisting and without causing slack due to pulsation or the like, It can be used particularly effectively.

第１実施形態の断面側面図Cross-sectional side view of the first embodiment 第２実施形態の断面側面図Cross-sectional side view of the second embodiment 第２実施形態の変形例の要部の模式的な斜視図The typical perspective view of the principal part of the modification of 2nd Embodiment.

符号の説明Explanation of symbols

２ 可変速モータ
５ ボビン
９ 昇降筒
10 可変抵抗器
11 糸ガイド
12 速度制御器
13a 解舒糸
14 解舒位置
25 フライヤー
25b 磁石
28 糸ガイド
30 光電センサ群 2 Variable speed motor 5 Bobbin 9 Lifting cylinder
10 Variable resistor
11 Thread guide
12 Speed controller
13a Unwinding yarn
14 Unwinding position
25 Flyer
25b magnet
28 Thread guide
30 Photoelectric sensor group

Claims (3)

ボビンその他の糸の巻装体から糸条を当該巻装体の軸方向に引出す解舒装置において、巻装体(5)を軸回りに回転駆動する可変速モータ(2)と、巻装体から解舒された解舒糸(13a)を案内する固定の糸ガイド(11,28)と、この糸ガイドと巻装体(5)との間に設けられて当該巻装体からの糸条の円周方向の解舒位置(14)の変化により変位する検出体(9,25)と、この検出体の変位を検出する変位センサ(10,30)と、当該変位センサの検出信号を受けて当該変位を打ち消す方向に前記可変速モータを速度制御する制御器(12)とを備えている、糸条の無撚引出し装置。   A variable speed motor (2) for rotating a winding body (5) around an axis in a unwinding device for pulling a yarn from a bobbin or other thread winding body in the axial direction of the winding body, and the winding body A fixed yarn guide (11, 28) for guiding the unwinding yarn (13a) unwound from the yarn, and a yarn from the winding body provided between the yarn guide and the winding body (5). Detecting body (9, 25) that is displaced by a change in the unwinding position (14) in the circumferential direction of the sensor, a displacement sensor (10, 30) that detects the displacement of the detecting body, and a detection signal of the displacement sensor And a controller (12) for controlling the speed of the variable speed motor in a direction to cancel the displacement. 糸条を巻装したボビンその他の巻装体から糸条を当該巻装体の軸方向に引出す解舒装置において、巻装体(5)を軸回りに回転駆動する可変速モータ(2)と、糸条引き出し側の巻装体(5)の軸方向延長線上に設けられて回転かつ自由昇降可能な昇降筒(9)と、この昇降筒の下流側で解舒糸(13a)を案内する固定の糸ガイド(11)と、前記昇降筒の昇降を検出するセンサ(10)と、当該センサの検出信号を受けて前記昇降筒の上昇を抑制するように前記可変速モータを速度制御する制御器(12)とを備えている、糸条の無撚引出し装置。   A variable speed motor (2) for rotationally driving the wound body (5) around an axis in an unwinding device for drawing the yarn from a bobbin or other wound body around which the thread is wound in the axial direction of the wound body; A hoisting cylinder (9) which is provided on an axially extending line of the wound body (5) on the yarn draw-out side and which can rotate and freely move up and down, and guides the unwinding yarn (13a) on the downstream side of the hoisting cylinder A fixed yarn guide (11), a sensor (10) for detecting the raising and lowering of the lifting cylinder, and a control for controlling the speed of the variable speed motor so as to suppress the lifting of the lifting cylinder in response to a detection signal of the sensor A yarn-free twisting-out device comprising a container (12). 糸条を巻装した巻装体から糸条を当該巻装体の軸方向に引出す解舒装置において、巻装体(5)を軸回りに回転駆動する可変速モータ(2)と、先端に解舒糸(13a)を案内する糸目(17)を備え、前記巻装体の糸引出し端に当該巻装体の軸回りに自由回転可能かつ前記巻装体の回転方向に付勢して設けられたたフライヤー(25)と、このフライヤーの下流側で解舒糸(13a)を案内する固定の糸ガイド(28)と、前記フライヤーの回動を検出するセンサ(10,30)と、当該センサの検出信号を受けて前記フライヤーの回動を抑制するように前記可変速モータを速度制御する制御器(12)とを備えている、糸条の無撚引出し装置。   In the unwinding device that draws the yarn from the wound body around which the yarn is wound in the axial direction of the wound body, the variable speed motor (2) that rotates the wound body (5) around the axis and the tip end A thread line (17) for guiding the unwinding yarn (13a) is provided, and is provided at the yarn withdrawal end of the wound body so as to be freely rotatable about the axis of the wound body and biased in the rotational direction of the wound body. A fryer (25), a fixed yarn guide (28) for guiding the unwinding yarn (13a) downstream of the fryer, a sensor (10, 30) for detecting the rotation of the fryer, A yarn non-twisted drawing device comprising: a controller (12) for controlling the speed of the variable speed motor so as to suppress rotation of the fryer in response to a detection signal of a sensor.
JP2005223048A 2005-08-01 2005-08-01 Apparatus for drawing out yarn without twisting Pending JP2007039824A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20090669A1 (en) * 2009-09-01 2011-03-02 Ergotron Dondi Benelli Dore DEVICE FOR THE CONTROLLED DEVELOPMENT OF A RIBBON OR PLATE ELEMENT ON A ROCK, IN PARTICULAR A FLAT WEAVE
CN102634913A (en) * 2012-04-06 2012-08-15 经纬纺织机械股份有限公司 Weft storage device without twist change
KR20200102204A (en) * 2019-02-21 2020-08-31 (주)위브넥스 Twist Prevent Device Of Thread

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20090669A1 (en) * 2009-09-01 2011-03-02 Ergotron Dondi Benelli Dore DEVICE FOR THE CONTROLLED DEVELOPMENT OF A RIBBON OR PLATE ELEMENT ON A ROCK, IN PARTICULAR A FLAT WEAVE
CN102634913A (en) * 2012-04-06 2012-08-15 经纬纺织机械股份有限公司 Weft storage device without twist change
KR20200102204A (en) * 2019-02-21 2020-08-31 (주)위브넥스 Twist Prevent Device Of Thread
KR102164302B1 (en) 2019-02-21 2020-10-12 (주)위브넥스 Twist Prevent Device Of Thread

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