JP2008002032A - Method for feeding weft yarn in loom - Google Patents

Method for feeding weft yarn in loom Download PDF

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JP2008002032A
JP2008002032A JP2006174186A JP2006174186A JP2008002032A JP 2008002032 A JP2008002032 A JP 2008002032A JP 2006174186 A JP2006174186 A JP 2006174186A JP 2006174186 A JP2006174186 A JP 2006174186A JP 2008002032 A JP2008002032 A JP 2008002032A
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loom
weft
yarn
weft yarn
bobbin
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Yoshinobu Hirata
好信 平田
Katsuhiko Sugita
克彦 杉田
Toyokazu Arita
豊和 有田
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AVR KK
TAGAWA KIKAI KK
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AVR KK
TAGAWA KIKAI KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a high performance and inexpensive method for feeding weft yarn without having release twists on drawing out the weft yarn from a bobbin in winding shaft direction in weaving a fabric by using a tape-formed weft yarn by a high speed loom such as a jet loom. <P>SOLUTION: This method for feeding the weft yarn is provided by setting winding diameter information such as a wound form of a bobbin on which the tape-formed weft yarn is wound, wound length, drum diameter, etc., a weft yarn length information of one pick decided by the weaving width of the loom and the information of the number of rotation of the loom on a regulating tool in advance. From these information, a speed controlling signal is generated by calculation. The signal is output by synchronizing with the operation signal of the loom, and rotates a servomotor in a counter direction to the rotating direction of a balloon generated in releasing the weft yarn from the bobbin. By the above action, the releasing point of the weft yarn moves in its stopping direction to cancel the release twists from the bobbin. Further, by detecting the rotating direction and speed of the balloon with a photoelectric sensor, the speed of the motor is corrected to perform the correction for surely stopping the rotation of the balloon. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、ボビンやリールなどの給糸体に巻かれたテープ状の糸を、解除撚りが出ないように当該給糸体の巻き軸方向に解除して、織機のよこ糸として供給する方法に関するものである。   The present invention relates to a method of releasing a tape-like yarn wound around a yarn supplying body such as a bobbin or a reel in the winding axis direction of the yarn supplying body so as not to release the twist and supplying it as a weft yarn of a loom. Is.

テープ状のよこ糸を解除撚りを生じさせないで織機に供給する方法としては、よこ糸が巻かれているボビンやリールを糸の引出し速度に対応する周速で回転させて、糸を接線方向に引出し、ダンサーロール部分に貯留して織機に供給する、よこ取りと呼ばれる方法が用いられている。しかしこの方法では、ダンサーロールの動きが遅く、高速織機へのよこ糸の供給には利用できなかった。また、よこ糸をボビンやリールの巻き軸方向に引出すたて取りと呼ばれる方法においては、給糸体を横置きにしてその給糸体に糸の解除方向と反対の方向の回転を与えて解除撚りを巻き戻す方法（例えば特許文献１）が提案されている。
特開２００５−２００１７９号公報 As a method of supplying the tape-shaped weft yarn to the loom without causing the release twist, the bobbin or reel around which the weft yarn is wound is rotated at a peripheral speed corresponding to the drawing speed of the yarn, and the yarn is drawn in the tangential direction. A method called weft removal, which is stored in the dancer roll and supplied to the loom, is used. However, with this method, the dancer roll moves slowly and cannot be used to supply the weft yarn to the high-speed loom. Also, in a method called warp taking out the weft yarn in the bobbin or reel winding axis direction, the yarn supply body is placed horizontally, and the yarn supply body is rotated in the direction opposite to the yarn release direction to release twist. There has been proposed a method for rewinding (for example, Patent Document 1).
JP 2005-200990 A

従来主流のよこ取りの方法では、高速給糸（例えば解除速度が１分間に６００メートル以上）は困難であつた。また、特許文献１で提案されているたて取りの方法では、糸が給糸体から解除されるときに生ずるバルーンを検出し、その検出信号に基づいて給糸体を駆動するモータの回転数を制御しているが、バルーンが１回転しなければこれを検出できないので、引出した糸に解除撚りが残ってしまうことになり、１ピックのよこ糸に半回転の撚りが残っても製織不良となる高速織機のよこ糸の供給には利用できない。   Conventionally, with the mainstream weft removal method, high-speed yarn feeding (for example, a release speed of 600 meters or more per minute) has been difficult. Further, in the warping method proposed in Patent Document 1, a balloon generated when the yarn is released from the yarn feeder is detected, and the number of rotations of a motor that drives the yarn feeder based on the detection signal is detected. However, since this cannot be detected unless the balloon rotates once, the untwisted yarn remains in the drawn yarn, and even if a half-ply twist remains in one pick weft, the weaving is poor. It cannot be used to supply weft yarns for high-speed looms.

また、解除される糸の速度を検出して給糸体の回転数を制御する方法も提案されているが、この方法では糸の引出しに伴って給糸体の径が変化すると解除撚りが発生する。このように、従来のたて取りの方法では解除撚りを完全に無くすことができなかった。   In addition, a method for detecting the speed of the yarn to be released and controlling the rotation speed of the yarn feeder has also been proposed. However, in this method, when the diameter of the yarn feeder changes as the yarn is pulled out, a release twist occurs. To do. As described above, the conventional warping method cannot completely eliminate the release twist.

この発明の課題は、高速織機のよこ糸にテープ状のよこ糸を使用するときに用いる、解除撚りを入れないで高速給糸が可能な方法を得ることである。   An object of the present invention is to obtain a method capable of high-speed yarn feeding without using a release twist, which is used when a tape-like weft is used as a weft of a high-speed loom.

本発明は、給糸体から織機のよこ糸を高速で解除するたて取りにおいて、解除撚りを無くす方法を提案するものである。この出願の請求項１の発明に係る織機用のよこ糸供給方法は、織機に供給するよこ糸１を巻き軸ａ方向に引き出すよこ糸供給装置において、よこ糸を巻いた給糸体３の巻き径に係るデータと、製織しようとする織布の織り幅に対応する１ピックに必要なよこ糸長さのデータと、織機の回転数に係るデータとを予め制御器７に設定し、織機の運転信号に応じて、前記データに基づいて制御器７が演算した回転数で駆動されるモータ４により、給糸体３を当該給糸体から解除されるよこ糸１のバルーニング方向と逆方向に回転駆動して、給糸体３からよこ糸１を解除撚りを発生させることなく解除することを特徴とする織機用のよこ糸供給方法である。   The present invention proposes a method of eliminating the release twist in the take-up of the weft of the loom from the yarn feeder at a high speed. The weft supply method for a loom according to claim 1 of the present application is a data relating to the winding diameter of the yarn feeder 3 wound with the weft yarn in the weft supply device for pulling out the weft 1 supplied to the loom in the direction of the winding axis a. The weft length data required for one pick corresponding to the weaving width of the woven fabric to be woven and the data relating to the loom speed are set in the controller 7 in advance, and according to the loom operating signal. The yarn feed body 3 is rotationally driven in the direction opposite to the ballooning direction of the weft 1 released from the yarn supply body by the motor 4 driven at the number of revolutions calculated by the controller 7 based on the data. A weft supply method for a loom, wherein the weft 1 is released from the yarn body 3 without generating a release twist.

すなわち、制御器７で回転数を制御されるサーボモータ４で、たて取りの給糸体３をその巻き軸ａ回りに回転できるようにしておく。そして、予め設定されたデータに基づいて演算した回転数で、織機の運転と同期して、よこ糸１を給糸体３から解除するときに発生するバルーン（解除に伴う糸の巻き軸回りの旋回）の回転方向と逆方向にサーボモータ４を駆動する。このサーボモータ４の駆動回転数を、１ピックに必要なよこ糸長さに織機回転数を乗じた単位時間当りの給糸長さをそのときの給糸体３の周長で除した回転数とすることにより、解除撚りがでないように制御する。各時点での給糸体３の周長は、当該給糸体に巻かれていた糸の全長と、給糸体の初期径及び終期径と、そのときまでに引出した糸の全長とから演算できる。この動作によりほぼ解除撚りは無くなる。   In other words, the warp yarn feeder 3 can be rotated around the winding axis a by the servo motor 4 whose rotational speed is controlled by the controller 7. A balloon generated when the weft 1 is released from the yarn feeder 3 at the number of revolutions calculated based on preset data in synchronism with the operation of the loom (turning around the winding axis of the yarn accompanying the release). The servo motor 4 is driven in the direction opposite to the rotation direction of). The number of rotations of the servo motor 4 is obtained by dividing the yarn feed length per unit time obtained by multiplying the weft yarn length necessary for one pick by the loom rotation speed by the circumference of the yarn feeder 3 at that time. By doing so, control is performed so as not to release twist. The circumference of the yarn feeder 3 at each time point is calculated from the total length of the yarn wound around the yarn feeder, the initial and final diameters of the yarn feeder, and the total length of the yarn drawn up to that time. it can. By this operation, almost no release twist is eliminated.

上記方法で給糸体３を回転駆動したとき、制御器７で演算された回転数と解除撚りをゼロにするのに必要な実際の回転数との間に誤差があると、よこ糸の解除点が給糸体の円周上を移動する。本願の請求項２の発明は、上記のこの発明のよこ糸供給方法において、給糸体３からのよこ糸引出し位置に引出したよこ糸１にバルーンが発生したときにその回転方向と回転速度とを検出する検出器Ａ、Ｂ、Ｃを設け、当該検出器の検出信号を制御器７に入力して、バルーンの回転を停止させる方向に前記演算した回転数を補正することにより、制御器７が演算した回転数と実際に必要な回転数との間の誤差を補正して、演算誤差があっても解除撚りが生じないようにしたものである。   When the yarn feeder 3 is driven to rotate by the above method, if there is an error between the rotational speed calculated by the controller 7 and the actual rotational speed necessary to make the release twist zero, the weft thread release point Moves on the circumference of the yarn feeder. According to the second aspect of the present invention, in the above-described weft supply method of the present invention, when a balloon is generated in the weft 1 drawn to the weft draw-out position from the yarn supplying body 3, the rotation direction and the rotation speed are detected. Detectors A, B, and C are provided, and the controller 7 calculates by inputting the detection signal of the detectors to the controller 7 and correcting the calculated rotational speed in a direction to stop the rotation of the balloon. The error between the rotational speed and the actually required rotational speed is corrected so that the release twist does not occur even if there is a calculation error.

すなわち、制御器７が演算した回転数と実際に必要な回転数との間に誤差があったときの糸の巻き軸回りの旋回方向と旋回速度とを検出して、設定データ自体又は設定データに基づいて演算された演算値に補正を加え、バルーンの回転が完全に停止するようにサーボモータ４の回転数を制御する。バルーンが停止すると、給糸体３から糸が解除されるときに解除撚りは入らなくなる。   That is, the setting data itself or the setting data is detected by detecting the turning direction and the turning speed around the winding axis of the yarn when there is an error between the rotation speed calculated by the controller 7 and the actually required rotation speed. The rotation speed of the servo motor 4 is controlled so that the rotation of the balloon is completely stopped. When the balloon stops, the release twist does not enter when the yarn is released from the yarn feeder 3.

給糸体３の回転数の演算は、よこ糸のピック長さ、織機の回転数及びその時点での給糸体の径を元にして計算される。従って、予期しない原因で織機の回転数が変わると、演算値に誤差が生ずる。また、演算時点での給糸体３の径には、演算値と実際の値との間に誤差が入り込む余地が大きい。   The calculation of the rotational speed of the yarn feeder 3 is calculated based on the pick length of the weft yarn, the rotational speed of the loom and the diameter of the yarn feeder at that time. Accordingly, if the rotational speed of the loom changes due to an unexpected cause, an error occurs in the calculated value. Further, the diameter of the yarn feeder 3 at the time of calculation has a large room for an error to enter between the calculated value and the actual value.

本願の請求項３に示すように、給糸体３を駆動するモータ４の回転数を演算する際の、織機の回転数に係るデータの設定に代えて、運転中の織機から検出した織機回転数を逐次制御器７に入力して当該入力値に基づいてモータ４の回転数を演算する方法を採用すれば、予期しない原因によって織機の回転数が設定回転数からずれたときでも、そのずれによって生ずる解除撚りを生じさせないようにすることができる。   As shown in claim 3 of the present application, instead of setting the data relating to the rotational speed of the loom when calculating the rotational speed of the motor 4 that drives the yarn feeder 3, the loom rotation detected from the operating loom If a method is employed in which the number is sequentially input to the controller 7 and the rotational speed of the motor 4 is calculated based on the input value, even if the rotational speed of the loom deviates from the set rotational speed due to an unexpected cause, the shift It is possible to prevent the untwisting caused by.

また、本願の請求項４に示すように、給糸体を駆動するモータ４の回転数を演算する際の、給糸体３の巻き径に係るデータの設定に代えて、給糸体３の直径を検出する光電検出器９、１１を設け、当該検出器から制御器７に逐次入力されるその時点における実際の給糸体３の径のデータに基づいてモータ４の回転数を演算することにより、給糸体３の径の設定値やよこ糸の引出し長さから演算される各時点での給糸体径の演算値の誤差による解除撚りの発生を防止できる。   Further, as shown in claim 4 of the present application, instead of setting data relating to the winding diameter of the yarn supplying body 3 when calculating the rotation speed of the motor 4 that drives the yarn supplying body, Photoelectric detectors 9 and 11 for detecting the diameter are provided, and the number of rotations of the motor 4 is calculated based on the actual diameter data of the yarn feeder 3 that is sequentially input from the detector to the controller 7. Thus, it is possible to prevent the occurrence of the release twist due to the error of the calculated value of the yarn feeder diameter at each time point calculated from the set value of the diameter of the yarn feeder 3 and the drawing length of the weft yarn.

すなわち、本願の請求項３又は４の発明により、給糸体３からテープ糸をより確実に無撚で解除することが可能になる。   That is, according to the invention of claim 3 or 4 of the present application, the tape yarn can be more reliably released from the yarn feeder 3 without twisting.

この発明により、テープヤーンなどの扁平なよこ糸を給糸体から解除撚り無しで織機に高速で供給することが可能となった。これにより、テープヤーンをよこ糸とする織布をジェットルームでの製織することが可能となり、生産コストのかかる従来のレピア織機からの置き換えが可能となり、生産コストの引き下げができた。また、品質においても、ダンサロールによる張力の上昇やよこ糸の疵付きが無くなり、より高品質の織布が得られるようになった。また、この発明の方法を実施するための装置も非常にシンプルな構成で安価に生産できる。   According to the present invention, flat weft yarn such as tape yarn can be supplied from the yarn feeder to the loom at high speed without releasing twist. As a result, it is possible to weave the weaving fabric with the weft yarn of the tape yarn in the jet loom, and it is possible to replace the conventional rapier weaving machine, which requires a high production cost, and to reduce the production cost. Also, in terms of quality, there was no increase in tension due to dancer rolls and weft wrinkles, and higher quality woven fabrics could be obtained. Also, an apparatus for carrying out the method of the present invention can be produced at a low cost with a very simple configuration.

以下、実施形態を示す図面を参照して、本発明を具体例を説明する。図１及び図２を参照すると、テープ状のよこ糸１はボビン３に巻かれている。よこ糸１はボビン３の巻き軸ａ方向に引出され、巻き軸ａの軸線上に位置する固定のガイド２を通って、図示していない織機のよこ糸測長貯留装置へ引き込まれる。ボビン３を相対回転不能に嵌装したボビン軸１２は、サーボモータ４と機械的に連結されている。図１の例では、サーボモータ４とボビン軸１２は直結されているが、サーボモータの標準的な最大回転数は３０００ｒｐｍ程度であり、ボビン３をこれ以上の速度で回転させるときは、機械的に増速する必要がある。   Hereinafter, specific examples of the present invention will be described with reference to the drawings illustrating embodiments. Referring to FIGS. 1 and 2, the tape-like weft 1 is wound around a bobbin 3. The weft thread 1 is pulled out in the direction of the winding axis a of the bobbin 3, and is pulled through a fixed guide 2 positioned on the axis of the winding axis a into a weft length measuring and storing device of a loom not shown. The bobbin shaft 12 on which the bobbin 3 is fitted so as not to be relatively rotatable is mechanically connected to the servo motor 4. In the example of FIG. 1, the servo motor 4 and the bobbin shaft 12 are directly connected, but the standard maximum rotation speed of the servo motor is about 3000 rpm, and when the bobbin 3 is rotated at a speed higher than that, It is necessary to increase the speed.

サーボモータ４にはサーボモータ用エンコーダ５が連結されていて、サーボモータ４の回転方向と回転数を検出している。ボビン３とガイド２との間に巻き軸ａに向けて配置した投受光器Ａ、投受光器Ｂ及び投受光器Ｃに付いては後述する。   A servo motor encoder 5 is connected to the servo motor 4 to detect the rotation direction and the rotation speed of the servo motor 4. The projector / receiver A, the projector / receiver B, and the projector / receiver C arranged between the bobbin 3 and the guide 2 toward the winding axis a will be described later.

図２を参照して、サーボモータ４を制御する制御器７のタッチパネル６から、ボビン３の巻き径の初期値、巻き形状（巻き方、巻き方向及び外形が円筒形か円錐形かなどのデータ）、巻かれている糸の全長さ、巻き胴径（巻き径の終期値）を入力して、制御器７のメモリに設定する。さらに織機の織り幅から１ピックに必要なよこ糸長さを入力し、織機の回転数も入力して、これらのデータを制御器７のメモリに設定する。   Referring to FIG. 2, from the touch panel 6 of the controller 7 that controls the servo motor 4, the initial value of the winding diameter of the bobbin 3, the winding shape (winding method, winding direction, and whether the outer shape is cylindrical or conical, etc.) ), The total length of the wound yarn and the winding drum diameter (final value of the winding diameter) are input and set in the memory of the controller 7. Further, the weft length necessary for one pick is input from the weaving width of the loom, the rotational speed of the loom is also input, and these data are set in the memory of the controller 7.

制御器７は、マイクロコンピュウターで構成され、演算機能と入力、出力のインターフェースを持っている。制御器７には、メモリに設定されたデータからボビン３から解除される糸の解除撚りをゼロにするのに必要なボビン３の回転数を演算する演算式及び必要な演算テーブルを、巻き形状の種類に応じて予め登録しておく。   The controller 7 is composed of a microcomputer and has an arithmetic function and an input / output interface. The controller 7 includes a calculation formula for calculating the number of rotations of the bobbin 3 necessary for making the release twist of the yarn released from the bobbin 3 zero from the data set in the memory, and a necessary calculation table. It is registered in advance according to the type.

例えば糸が円筒形に平行に巻かれているボビンであれば、無撚解除をするのに必要なボビンの回転数ｍは、
ｍ＝Ｗ×ｎ／２πｄ
で与えられる。ここで、Ｗはよこ糸の１ピック長さ、ｎは織機の回転数、πは円周率、ｄはそのときの給糸体の直径（巻き径）である。そのときの給糸体の直径ｄは、
Ｗ×Ｎ／Ｌ＝（Ｄ2−ｄ2）／（Ｄ2−Ｅ2）
で与えられる。ここで、Ｌはそのボビンに当初巻かれていた糸の全長、Ｎはそのボビンの糸を引出し初めてからの織機の総回転数（Ｎ＝ｎ×織機の運転時間）、Ｅはボビンの巻き胴の径である。このような演算式を、ボビンの種々の巻き形状に応じて制御器７に予め登録しておき、入力されたボビンの巻き形状データに基づいて使用する演算式を選択して演算を実行する。 For example, if the bobbin is wound in parallel with a cylindrical shape, the number of rotations m of the bobbin necessary for untwisting is
m = W × n / 2πd
Given in. Here, W is the length of one pick of the weft yarn, n is the number of revolutions of the loom, π is the circumference, and d is the diameter (winding diameter) of the yarn feeder at that time. The diameter d of the yarn feeder at that time is
W × N / L = (D 2 −d 2 ) / (D 2 −E 2 )
Given in. Here, L is the total length of the yarn originally wound around the bobbin, N is the total number of rotations of the loom since the first time when the bobbin was pulled out (N = n × the loom operating time), and E is the bobbin winding drum Of the diameter. Such arithmetic expressions are registered in advance in the controller 7 in accordance with various winding shapes of the bobbin, and an arithmetic expression to be used is selected based on the input bobbin winding shape data to execute the calculation.

演算された回転数は、制御器７に接続されたサーボアンプ８に出力され、サーボアンプ８は指令された回転数でサーボモータ４を回転駆動する。サーボモータ４の回転は、サーボモータ用エンコーダ５で検出され、サーボアンプ８と制御器７にフィードバックされる。   The calculated rotation speed is output to the servo amplifier 8 connected to the controller 7, and the servo amplifier 8 drives the servo motor 4 to rotate at the commanded rotation speed. The rotation of the servo motor 4 is detected by the servo motor encoder 5 and fed back to the servo amplifier 8 and the controller 7.

織機から制御器７に運転信号が来ると、ボビン３の巻き径に係るデータ、緯入れの１ピック長さ、及び織機の回転数データからサーボモータ４の回転数を演算して、サーボアンプ８に回転指令を出す。このときの回転方向は、ボビン３からよこ糸１が解除されるときに発生するバルーンの回転方向の逆方向である。   When an operation signal comes from the loom to the controller 7, the servo amplifier 8 calculates the rotation speed of the servo motor 4 from the data related to the winding diameter of the bobbin 3, the weft insertion 1 pick length, and the loom rotation speed data. A rotation command is issued. The rotation direction at this time is the reverse direction of the rotation direction of the balloon generated when the weft 1 is released from the bobbin 3.

上記の制御によるサーボモータ４の回転数制御により、ボビン３からの解除撚りはほぼ解消できる。さらに精度を向上させる方法としては、織機の回転数の設定値に代えて、織機の回転数ｎを図示しない織機のクランク軸に取付けたエンコーダで検出し、これを制御器７に取込んでボビン回転数を演算する。更に、各時点におけるボビン３の巻き径ｄも、サーボモータ４の回転量から計算する代わりに、図３に示すような光電センサ９、１１で直接外形寸法を計測して制御器７に入力する方法もある。図３については後述する。   The release twist from the bobbin 3 can be almost eliminated by controlling the rotational speed of the servo motor 4 by the above control. As a method for further improving the accuracy, instead of the set value of the loom rotation speed, the loom rotation speed n is detected by an encoder attached to the crankshaft of the loom (not shown), and this is taken into the controller 7 for bobbins. Calculate the rotation speed. Furthermore, the winding diameter d of the bobbin 3 at each time point is also measured directly by photoelectric sensors 9 and 11 as shown in FIG. 3 and input to the controller 7 instead of calculating from the rotation amount of the servo motor 4. There is also a method. FIG. 3 will be described later.

制御器７には予備巻信号も取り込み可能となっている。これは織機を起動するときに必要な予備巻きで、織機のよこ入れ装置により異なるが、一般的に１〜１０ピックの範囲である。これも必要長さをタッチパネル６から入力して制御器７に設定しておき、この信号が来たときサーボモータ４の必要回転数を補正する。   The controller 7 can also take a preliminary winding signal. This is a preliminary winding required when starting the loom, and it is generally in the range of 1 to 10 picks, although it depends on the weaving device of the loom. Also, the necessary length is input from the touch panel 6 and set in the controller 7, and when this signal is received, the necessary rotational speed of the servo motor 4 is corrected.

次に、図２、３に示した投受光器Ａ、投受光器Ｂ及び投受光器Ｃについて説明する。投受光器Ａ、投受光器Ｂ、投受光器Ｃは、ボビン３からよこ糸１が解除される領域の外周側に円周方向約１２０°の間隔で配置され、よこ糸１がバルーン状態で回転するのを、各投受光器から発する光が糸で反射して帰ってくる反射信号で検出し、内部で電気信号に変換して制御器７に送り込んでいる。   Next, the projector / receiver A, the projector / receiver B, and the projector / receiver C shown in FIGS. The light emitter / receiver A, the light emitter / receiver B, and the light emitter / receiver C are arranged at an interval of about 120 ° in the circumferential direction on the outer peripheral side of the region where the weft 1 is released from the bobbin 3, and the weft 1 rotates in a balloon state. This is detected by a reflected signal returned from the light emitted from each projector / receiver, and converted into an electrical signal and sent to the controller 7.

バルーンがボビン３の糸の解除方向から見て時計回りで回転すると、投受光器Ａ、投受光器Ｂ、投受光器Ｃ、の順番で信号が入り、反時計回りのときは、投受光器Ａ、投受光器Ｃ、投受光器Ｂの順番で信号が入る。制御器７に送り込まれたこれらの信号は、前述のようにして演算制御されているサーボモータ４の回転速度を投受光器Ａ、Ｂ、Ｃで検出されたバルーンの回転方向と逆方向に補正する。
一例として、サーボモータ４がボビン３のよこ糸解除方向からみて、反時計回りで回転しているときに、投受光器Ａ、投受光器Ｂ、投受光器Ｃの順に信号が来るときは、サーボモータ４を増速する方向に指令回転数を補正する。また、投受光器Ａ、投受光器Ｃ、投受光器Ｂの順に信号が来たときは、サーボモータ４を減速する方向に指令回転数が補正される。これにより、常に解除糸のバルーンの回転が停止するように機能し、ボビン３から解除されるよこ糸の解除撚りが減少する。 When the balloon rotates clockwise as viewed from the thread release direction of the bobbin 3, signals are input in the order of the projector / receiver A, the projector / receiver B, and the projector / receiver C. When the balloon is counterclockwise, the projector / receiver Signals are input in the order of A, projector / receiver C, and projector / receiver B. These signals sent to the controller 7 correct the rotational speed of the servo motor 4 that is arithmetically controlled as described above in the direction opposite to the rotational direction of the balloon detected by the light emitters / receivers A, B, and C. To do.
As an example, when the servo motor 4 rotates counterclockwise when viewed from the weft releasing direction of the bobbin 3, if signals come in the order of the light emitter / receiver A, the light emitter / receiver B, and the light emitter / receiver C, the servo The command rotational speed is corrected in the direction of increasing the speed of the motor 4. When the signals come in the order of the light emitter / receiver A, the light emitter / receiver C, and the light emitter / receiver B, the command rotational speed is corrected in a direction to decelerate the servo motor 4. Thus, the rotation of the balloon of the release yarn always functions to stop, and the release twist of the weft yarn released from the bobbin 3 is reduced.

図３について説明すると、投光アレイ９は、ボビン３の最大巻き径より少し幅広い平行光線（面状の光、図の斜線部分。）Ｐを投射している。この光をボビン３のよこ糸１が巻かれた部分１０に照射して、巻き径による受光アレイ１１への平行光線ｐを遮断するように、投光アレイ９及び受光アレイ１１を配置する。このような配置でボビン３の巻き径ｄを受光アレイの未受光部分の長さで検出できる。未受光部分の長さは受光アレイ１１で電気信号に変換され、図２には記載していないが、制御器７に入力してボビン３の巻き径ｄとしてボビン回転数の演算に使用する。   Referring to FIG. 3, the light projecting array 9 projects parallel rays (planar light, shaded portions in the drawing) P slightly wider than the maximum winding diameter of the bobbin 3. The light projecting array 9 and the light receiving array 11 are arranged so as to irradiate the portion 10 of the bobbin 3 around which the weft thread 1 is wound, and to block the parallel light p to the light receiving array 11 due to the winding diameter. With such an arrangement, the winding diameter d of the bobbin 3 can be detected by the length of the non-light receiving portion of the light receiving array. The length of the non-light receiving portion is converted into an electric signal by the light receiving array 11 and is not shown in FIG. 2, but is input to the controller 7 and used as the winding diameter d of the bobbin 3 for calculating the bobbin rotation speed.

以上の説明では、バルーン検出の方法として反射型の投受光器で説明したが、投光と受光を分離した透過型センサを使用することも可能である。この場合、投光器と受光器を３組使用すると、バルーン１回転で６回の検出信号処理が必要となる。またバルーン検出に使用するセンサの数は３個以上が望ましいが、２個使用して時間差を利用する方法もある。数が多いほど、撚りの発生を小さい内に検出できる。本発明は、ボビンに巻いたテープ状の糸に限定されるものでなく、回転可能な状態に巻かれている給糸体のよこ糸が含まれる。   In the above description, the reflection type projector / receiver has been described as the balloon detection method. However, it is also possible to use a transmission type sensor in which projection and reception are separated. In this case, if three sets of light projectors and light receivers are used, six detection signal processes are required for one rotation of the balloon. Also, the number of sensors used for balloon detection is preferably three or more, but there is a method of using two and utilizing the time difference. The larger the number, the smaller the occurrence of twist can be detected. The present invention is not limited to a tape-like thread wound around a bobbin, but includes a weft thread of a yarn feeder that is wound in a rotatable state.

本発明のテープ状の糸を解除撚り無しで送り出す方法は装飾用リボンやチャックテープなどの細幅織物やゴム紐を加工する工程などに利用が可能である。   The method of feeding the tape-like yarn of the present invention without releasing twist can be used for a process of processing a narrow fabric such as a decorative ribbon or a chuck tape or a rubber string.

本発明の方法でよこ糸を解除する装置の一例を示す模式的な斜視図Schematic perspective view showing an example of an apparatus for releasing a weft thread by the method of the present invention 本発明の方法で用いる制御装置の一例を示すブロック図The block diagram which shows an example of the control apparatus used with the method of this invention 光電センサーを用いて巻き径を検出する方法の一例を示す説明図Explanatory drawing which shows an example of the method of detecting a winding diameter using a photoelectric sensor

符号の説明Explanation of symbols

１ よこ糸
２ ガイド
３ ボビン
４ サーボモータ
５ サーボモータ用エンコーダ
６ タッチパネル
７ 制御器
８ サーボアンプ
９ 投光アレイ
10 ボビンの糸巻き部分
11 受光アレイ
ａ 巻き軸
Ａ 投受光器
Ｂ 投受光器
Ｃ 投受光器 1 Weft 2 Guide 3 Bobbin 4 Servo Motor 5 Servo Motor Encoder 6 Touch Panel 7 Controller 8 Servo Amplifier 9 Light Emitting Array
10 Bobbin spool
11 Receiving array a Winding axis A Emitter / receiver B Emitter / receiver C Emitter / receiver

Claims (4)

織機に供給するよこ糸を巻き軸方向に引き出すよこ糸供給装置において、よこ糸を巻いた給糸体の巻き径に係るデータと、製織しようとする織布の織り幅に対応する１ピックに必要なよこ糸長さのデータと、織機の回転数に係るデータとを予め制御器に設定し、織機の運転信号に応じて、前記データに基づいて制御器が演算した回転数で駆動されるモータにより、給糸体を当該給糸体から解除されるよこ糸のバルーニング方向と逆方向に回転駆動して、給糸体からよこ糸を解除撚りを発生させることなく解除することを特徴とする、織機用のよこ糸供給方法。   In the weft supply device that pulls out the weft supplied to the loom in the direction of the winding axis, weft length required for one pick corresponding to the data relating to the winding diameter of the yarn supply body wound with the weft and the weaving width of the woven fabric to be woven And the data relating to the loom speed of the loom are set in the controller in advance, and the yarn is fed by the motor driven at the speed calculated by the controller based on the data according to the operation signal of the loom A weft supply method for a loom, characterized in that the weft is released from the yarn supply body without causing a release twist by rotationally driving the body in a direction opposite to the ballooning direction of the weft yarn released from the yarn supply body. . 請求項１記載のよこ糸供給方法において、給糸体からのよこ糸引出し位置に引出したよこ糸にバルーンが発生したときにその回転方向と回転速度とを検出する検出器を設け、当該検出器の検出信号を前記制御器に入力して、バルーンの回転を停止させる方向に前記演算した回転数を補正することを特徴とする、織機用のよこ糸供給方法。   The weft supply method according to claim 1, further comprising a detector for detecting a rotation direction and a rotation speed when a balloon is generated in the weft drawn from the yarn feeder to the weft drawing position, and a detection signal of the detector. Is input to the controller, and the calculated number of rotations is corrected in a direction to stop the rotation of the balloon. 請求項１又は２記載のよこ糸供給方法における織機の回転数に係るデータの設定に代えて、運転中の織機から検出した織機回転数を逐次制御器に入力して当該入力値に基づいて前記モータの回転数を演算することを特徴とする、織機用のよこ糸供給方法。   3. Instead of setting data relating to the loom rotational speed in the weft supply method according to claim 1 or 2, the loom rotational speed detected from the operating loom is sequentially input to the controller, and the motor is based on the input value. A weft supply method for a loom, characterized in that the number of rotations is calculated. 請求項１、２又は３記載のよこ糸供給方法における給糸体の巻き径に係るデータの設定に代えて、給糸体の直径を検出する光電検出器を設け、当該検出器から前記制御器に逐次入力されるデータに基づいて前記モータの回転数を演算することを特徴とする、織機用のよこ糸供給方法。   Instead of setting data relating to the winding diameter of the yarn feeder in the weft supply method according to claim 1, 2, or 3, a photoelectric detector for detecting the diameter of the yarn feeder is provided, and from the detector to the controller A weft supply method for a loom, characterized in that the number of rotations of the motor is calculated based on sequentially input data.
JP2006174186A 2006-06-23 2006-06-23 Method for feeding weft yarn in loom Pending JP2008002032A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100832302B1 (en) * 2006-12-21 2008-05-26 한국에너지기술연구원 Fabrication method of pd alloy membrane using in-situ dry vacuum process for hydrogen gas separation
JP2013104162A (en) * 2011-11-11 2013-05-30 Btsr Internatl Spa Improved yarn storage feed device
CN104727004A (en) * 2013-12-18 2015-06-24 吴江振宇机电一体化技术研究中心 Electronic weft accumulator
CN105177827A (en) * 2015-09-28 2015-12-23 嵊州市中森电子有限公司 Adjustable yarn winding plate applied to weft accumulator
CN105177833A (en) * 2015-09-28 2015-12-23 嵊州市中森电子有限公司 Weft yarn storage device capable of recognizing broken yarns automatically
CN108754798A (en) * 2018-08-16 2018-11-06 青岛金誉佳纺织机械有限公司 A kind of loom assembly of devices with Weft Detwisting function
KR101960631B1 (en) * 2018-02-06 2019-03-20 영남대학교 산학협력단 Large inner diameter weft package for weaving of textile product and winder for winding the package
KR20200102204A (en) * 2019-02-21 2020-08-31 (주)위브넥스 Twist Prevent Device Of Thread

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100832302B1 (en) * 2006-12-21 2008-05-26 한국에너지기술연구원 Fabrication method of pd alloy membrane using in-situ dry vacuum process for hydrogen gas separation
JP2013104162A (en) * 2011-11-11 2013-05-30 Btsr Internatl Spa Improved yarn storage feed device
CN104727004A (en) * 2013-12-18 2015-06-24 吴江振宇机电一体化技术研究中心 Electronic weft accumulator
CN105177827A (en) * 2015-09-28 2015-12-23 嵊州市中森电子有限公司 Adjustable yarn winding plate applied to weft accumulator
CN105177833A (en) * 2015-09-28 2015-12-23 嵊州市中森电子有限公司 Weft yarn storage device capable of recognizing broken yarns automatically
CN105177827B (en) * 2015-09-28 2018-06-05 嵊州市中森电子有限公司 It is a kind of to be applied to the adjustable around yarn disk of weft accumulator
KR101960631B1 (en) * 2018-02-06 2019-03-20 영남대학교 산학협력단 Large inner diameter weft package for weaving of textile product and winder for winding the package
CN108754798A (en) * 2018-08-16 2018-11-06 青岛金誉佳纺织机械有限公司 A kind of loom assembly of devices with Weft Detwisting function
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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