JPH0616945Y2 - Warp supply device for three-dimensional loom - Google Patents
Warp supply device for three-dimensional loomInfo
- Publication number
- JPH0616945Y2 JPH0616945Y2 JP13391588U JP13391588U JPH0616945Y2 JP H0616945 Y2 JPH0616945 Y2 JP H0616945Y2 JP 13391588 U JP13391588 U JP 13391588U JP 13391588 U JP13391588 U JP 13391588U JP H0616945 Y2 JPH0616945 Y2 JP H0616945Y2
- Authority
- JP
- Japan
- Prior art keywords
- warp
- take
- amount
- dimensional
- dimensional fabric
- 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 - Lifetime
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Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は多数の経糸ｚを複数行、複数列に張設した経糸
ｚ群の行及び列間に経糸ｚの開閉口を伴なう状態で第１
緯糸及び第２緯糸をそれぞれ経糸ｚと直交する状態に織
り込む三次元織機の経糸供給装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a state in which a large number of warp yarns z are stretched in a plurality of rows and a plurality of columns, and a group of warp yarns z is provided between the rows and columns of the warp yarns z. And first
The present invention relates to a warp supply device for a three-dimensional loom that weaves a weft and a second weft in a state orthogonal to the warp z.
［従来の技術］ 経糸ｚ、第１緯糸及第２緯糸の三成分の糸により立体的
に組織される三次元織物は、製織時に供給される経糸ｚ
に張力の変動があると織物組織中に不良部分が生じるた
め、三次元織物の製織時には経糸ｚの張力変動を無くし
て経糸ｚを連続して供給する必要がある。従来、例えば
特公昭５７−１７９９０号公報には第６図に示す三次元
織機が開示されている。この装置では機枠１の上部にモ
ータ２により同期回転駆動されるねじ軸３が垂直に配設
され、両ねじ軸３間に多数の経糸ｚを垂下させる糸取付
け孔（図示せず）を備えた経糸支持板４の取付枠５がナ
ット部５ａを介して取付けられ、三次元織物の製織の進
行に伴ない三次元織物を間欠的に引取る引取装置６が構
成されている。引取装置６の下方には綜絖装置７が配設
され、経糸ｚは綜絖８の糸挿通孔８ａに挿通されるとと
もに下端に重錘が固定された状態で垂直方向に張設され
ている。[Prior Art] A three-dimensional woven fabric which is three-dimensionally organized by three component yarns of a warp z, a first weft and a second weft is a warp z supplied at the time of weaving.
When the three-dimensional woven fabric is woven, it is necessary to eliminate the tension variation of the warp z and continuously supply the warp z because the variation of the tension causes a defective portion in the fabric structure. Conventionally, for example, Japanese Patent Publication No. 57-17990 discloses a three-dimensional loom shown in FIG. In this device, a screw shaft 3 which is synchronously driven by a motor 2 is vertically arranged on an upper part of a machine frame 1, and a thread attachment hole (not shown) for hanging a large number of warp threads z is provided between both screw shafts 3. The attachment frame 5 of the warp support plate 4 is attached via the nut portion 5a, and a take-up device 6 that intermittently takes up the three-dimensional fabric as the weaving of the three-dimensional fabric progresses is configured. A heald device 7 is disposed below the take-up device 6, and the warp yarn z is vertically stretched in a state in which a thread insertion hole 8a of the heddle 8 is inserted and a weight is fixed to the lower end.
又、特開昭６３−８５１３８号公報に開示された三次元
織機は第７図に示すように、機枠１の下部に経糸ｚを供
給する一対の経糸ボビン１０を配設するとともに、経糸
ボビン１０から送り出された経糸ｚが張力探知ローラ１
１及びガイドローラ１２を経て織成部１３に供給される
ようになっている。又、引取装置６は一端が図示しない
巻取りドラムに止着されるとともに機枠１の上方に配設
されたスプロケット１４を経て案内されるチェーン１５
と、その他端に連結されて巻取りドラムの作動に伴ない
支柱１６に沿って移動される支持プレート１７とから構
成され、支持プレート１７に固定された固定部材１８に
経糸ｚの端部が固定保持されるようになっている。Further, in the three-dimensional loom disclosed in Japanese Patent Laid-Open No. 63-85138, as shown in FIG. 7, a pair of warp bobbins 10 for supplying the warp z are arranged at the lower part of the machine frame 1 and the warp bobbin. The warp z sent out from the tension detecting roller 1
1 and the guide roller 12, and is supplied to the woven portion 13. Further, the take-up device 6 has one end fixed to a take-up drum (not shown) and a chain 15 guided through a sprocket 14 arranged above the machine frame 1.
And a supporting plate 17 that is connected to the other end and is moved along the column 16 along with the operation of the winding drum. The end of the warp z is fixed to the fixing member 18 fixed to the supporting plate 17. It is supposed to be retained.
［考案が解決しようとする課題］ ところが、前者の装置のように各経糸ｚの端部にそれぞ
れ重錘を取り付けることにより経糸ｚに一定の張力を与
えるように張設する方法では、一回の製織に必要な長さ
分の経糸ｚしか張設できず、しかも経糸ｚの本数分の重
錘が必要なため、製織の準備のために経糸ｚを張設する
際の作業性が悪く、結果として生産性が低下するという
問題がある。一方、後者の装置のように経糸ボビンから
経糸ｚを供給する構成の場合には、経糸ボビンに複数回
の製織に必要な長さの経糸ｚを準備することができる
が、この従来装置では経糸ｚを常に緊張状態に保持しつ
つ経糸ｚを供給する構成となっており、経糸ｚを低張力
で織成部１３に供給することが難しい。経糸ｚの開口を
伴う三次元織物の製織の場合には、経糸ｚが高張力に保
持されていると開口動作が困難になるばかりでなく、開
口装置の駆動力も大きくなるという問題がある。[Problems to be Solved by the Invention] However, in the method of stretching the warp z so as to give a constant tension by attaching a weight to each end of each warp z like the former device, Since only the warp z of the length necessary for weaving can be stretched and the weight corresponding to the number of the warp z is required, the workability in stretching the warp z in preparation for weaving is poor, resulting in As a result, there is a problem that productivity decreases. On the other hand, in the case of the structure in which the warp bobbin supplies the warp z from the warp bobbin as in the latter device, the warp bobbin can be prepared with the warp z having a length necessary for multiple times of weaving. It is configured to supply the warp z while always maintaining z in a tension state, and it is difficult to supply the warp z to the weaving portion 13 with low tension. In the case of weaving a three-dimensional woven fabric with openings of the warp threads z, if the warp threads z are held at high tension, not only the opening operation becomes difficult, but also the driving force of the opening device becomes large.
本考案は前記の問題点に鑑みてなされたものであって、
その目的は低張力の経糸ｚを連続して一定張力で供給す
ることができる三次元織機の経糸供給装置を提供するこ
とにある。The present invention has been made in view of the above problems,
It is an object of the present invention to provide a warp supply device for a three-dimensional loom that can continuously supply low tension warp z with a constant tension.
［課題を解決するための手段］ 前記の目的を達成するため本考案においては、経糸ｚが
巻かれるとともに回転自在に配設された糸巻管と、糸巻
管を回転移動する駆動装置と、三次元織物の製織の進行
に伴い三次元織物を間欠的に引取る引取装置の動作に同
期して引取装置による引取量にほぼ等しい量の経糸ｚを
前記糸巻管から送り出すように前記駆動装置を駆動制御
する制御装置と、前記糸巻管から三次元織物に連なる経
糸ｚの糸長の変動を経糸ｚを屈曲状態で一時貯留するこ
とにより吸収する吸収機構と、該吸収機構に貯留された
経糸ｚの貯留量が予め設定した上限及び下限値に達した
ことを検知する検知装置と、該検知装置の検知信号に基
づき前記駆動装置を経糸ｚの貯留量が減少又は増大する
ように駆動制御する制御装置とを設けた。[Means for Solving the Problems] In order to achieve the above object, in the present invention, a bobbin tube in which a warp z is wound and is rotatably disposed, a drive device for rotationally moving the bobbin tube, and a three-dimensional device. As the weaving of the woven fabric progresses, the drive device is driven and controlled so as to deliver the warp z from the bobbin tube in an amount substantially equal to the take-up amount of the take-up device in synchronization with the operation of the take-up device that intermittently takes up the three-dimensional fabric. Control device, an absorption mechanism that absorbs fluctuations in the yarn length of the warp z continuous from the bobbin tube to the three-dimensional fabric by temporarily storing the warp z in a bent state, and storage of the warp z stored in the absorption mechanism. A detection device for detecting that the amount has reached a preset upper and lower limit value, and a control device for driving and controlling the drive device based on a detection signal of the detection device so as to decrease or increase the storage amount of the warp z. Was set up.
［作用］ この考案の装置では製織の進行に伴い三次元織物を引取
る引取装置が間欠的に動作する際に、引取装置の動作に
同期して糸巻管が回転駆動されて引取装置による引取量
にほぼ等しい量の経糸ｚが糸巻管から送り出される。
又、糸巻管から三次元織物に連なる経糸ｚの糸長の変動
は吸収機構において経糸ｚを屈曲状態で一時貯留するこ
とにより吸収される。吸収機構に一時貯留される経糸ｚ
の量が所定の範囲内となるように駆動装置が駆動制御さ
れて経糸ｚの張力がほぼ一定に保持される。[Operation] In the device of the present invention, when the take-up device for taking up the three-dimensional fabric operates intermittently as weaving progresses, the bobbin tube is rotationally driven in synchronization with the operation of the take-up device and the take-up amount by the take-up device. A quantity of warp z approximately equal to is delivered from the bobbin.
Further, the fluctuation of the yarn length of the warp z continuous from the bobbin to the three-dimensional fabric is absorbed by temporarily storing the warp z in a bent state in the absorbing mechanism. Warp z temporarily stored in the absorption mechanism
The drive device is drive-controlled so that the amount of the warp is within a predetermined range, and the tension of the warp z is maintained substantially constant.
［実施例１］ 以下本考案を具体化した第１の実施例を第１〜３図に従
って説明する。経糸ｚが巻かれた糸巻管としてのビーム
１９は図示しないフレーム間に回転自在に配設されると
ともに、駆動装置２０により正逆回転駆動されるように
なっている。ビーム１９の近傍にはビーム１９から三次
元織物（図示せず）に連なる経糸ｚの糸長の変動を、経
糸ｚを屈曲状態で一時貯留することにより吸収する吸収
機構２１が配設されている。吸収機構２１は経糸ｚと直
交する状態で互いに平行に配置された一対のガイドロー
ラ２２と、経糸ｚが挿通された状態で両ガイドローラ２
２間に垂下されるウエスト２３とから構成され、ビーム
１９から三次元織物に連なる経糸ｚの糸長に変動が生じ
た際、ウエイト２３が昇降動することにより糸長の変動
が吸収されるようになっている。ウエイト２３の移動軌
跡と対応する上下両位置には、吸収機構２１に貯留され
た経糸ｚの貯留量が予め設定した上限及び下限値に達し
たことを検知する検知装置としての検知センサＳ１，Ｓ
２が配設されている。両検知センサＳ１，Ｓ２はウエイ
ト２３を検知するとその検知信号が制御装置２４に出力
され、制御装置２４はその検知信号に基づき前記駆動装
置２０を経糸ｚの貯留量が減少又は増大するように駆動
制御するようになっている。[First Embodiment] A first embodiment of the present invention will be described below with reference to FIGS. The beam 19, which is a thread winding tube around which the warp z is wound, is rotatably arranged between frames (not shown), and is driven by the drive device 20 to rotate forward and backward. In the vicinity of the beam 19, an absorption mechanism 21 is arranged to absorb fluctuations in the yarn length of the warp z continuous from the beam 19 to a three-dimensional fabric (not shown) by temporarily storing the warp z in a bent state. . The absorbing mechanism 21 includes a pair of guide rollers 22 arranged in parallel with each other in a state of being orthogonal to the warp yarns z, and both guide rollers 2 in a state of inserting the warp yarns z.
When the yarn length of the warp yarn z formed from the beam 19 and connected to the three-dimensional fabric from the beam 19 varies, the weight 23 moves up and down to absorb the variation of the yarn length. It has become. At both upper and lower positions corresponding to the movement trajectory of the weight 23, detection sensors S1 and S as detection devices for detecting that the storage amount of the warp z stored in the absorption mechanism 21 has reached a preset upper and lower limit value.
2 are provided. When both weight sensors S1 and S2 detect the weight 23, the detection signal is output to the control device 24, and the control device 24 drives the drive device 20 based on the detection signal so as to decrease or increase the storage amount of the warp z. It is designed to be controlled.
ビーム１９の近傍には経糸ｚが巻かれている部分の外径
を測定する測定装置２５が配設されている。測定装置２
５は先端に係合ローラ２６ａを備えるとともに、係合ロ
ーラ２６ａが常にビーム１９に巻かれた経糸ｚと当接す
る状態で揺動可能に配設された揺動レバー２６と、揺動
レバー２６にピストンロッド２７ａが連結されたシリン
ダ２７と、ピストンロッド２７ａの位置を検知するポテ
ンショメータ２８とから構成され、ポテンショメータ２
８の出力信号が制御装置２４に入力される。制御装置２
４は前記ポテンショメータ２８からの信号に基づき経糸
ｚが巻かれている部分のビーム径を演算するとともに、
そのビーム径を基準として三次元織物の製織に伴い三次
元織物を間欠的に引き取る引取装置の引取量に等しい量
の経糸ｚを送り出すために必要なビーム１９の回動量を
算出し、その値に対応した分ビーム１９を駆動するよう
に駆動装置２０に対して駆動制御信号を送る。又、制御
装置２４には引取装置（図示せず）を駆動制御する引取
コントローラ２９から引取開始を指示するパルス信号が
出力されるようになっている。A measuring device 25 for measuring the outer diameter of the portion around which the warp z is wound is disposed near the beam 19. Measuring device 2
No. 5 is provided with an engaging roller 26a at its tip, and is provided with an oscillating lever 26 that is oscillatably provided so that the engaging roller 26a is always in contact with the warp z wound around the beam 19. The potentiometer 2 includes a cylinder 27 to which a piston rod 27a is connected and a potentiometer 28 that detects the position of the piston rod 27a.
8 output signals are input to the controller 24. Control device 2
4 calculates the beam diameter of the portion around which the warp z is wound based on the signal from the potentiometer 28, and
Based on the beam diameter, the amount of rotation of the beam 19 required to send out the warp z of an amount equal to the take-up amount of the take-up device for intermittently taking up the three-dimensional fabric along with the weaving of the three-dimensional fabric is calculated, and the value is calculated as the value. A drive control signal is sent to the drive device 20 to drive the corresponding beam 19. Further, a pulse signal for instructing the start of take-up is output to the control device 24 from a take-up controller 29 that drives and controls a take-up device (not shown).
次に前記のように構成された装置の作用を説明する。第
１，２図に示すようにウエイト２３が両検知センサＳ
１，Ｓ２の間に配置された状態から三次元織物の製織が
開始される。三次元織物の織成動作の１サイクル毎に引
取コントローラ２９の指令信号により引取装置が一定量
三次元織物を引き取る動作を行う。引取コントローラ２
９は引取装置に引取信号を送ると同時に制御装置２４に
も引取信号を送る。制御装置２４はこの引取信号を入力
すると、測定装置２５からの出力信号に基づき演算した
ビーム１９に巻かれた経糸ｚの外径を基準に、引取装置
による引取量と等しい量の経糸ｚを送り出すために必要
な回動量を演算して駆動装置２０に駆動制御信号を出力
し、引取装置の動作と同期して経糸ｚの送り出しを行
う。経糸ｚの開口動作に伴うビーム１９から三次元織物
端部に至る経糸ｚの経路の変動、あるいはビーム１９に
巻かれている経糸ｚの外径の測定誤差及び引取装置と駆
動装置２０の起動、停止時のずれ等により経糸ｚに糸長
の変動が生じた場合には、その変動は吸収機構２１に貯
留される経糸ｚの貯留量が変化することにより吸収され
て経糸ｚは常にほぼ一定の張力が付与された状態に保持
される。経糸ｚの弛み量が少なくなってウエイト２３が
一方の検知センサＳ１に検知されると、その検知信号に
基づき制御装置２４は吸収機構２１に貯留される経糸ｚ
の貯留量を増大させる方向すなわち経糸ｚを送り出す方
向に駆動装置２０を作動させる制御信号を所定時間出力
する。一方経糸ｚの弛み量が増加して他方のセンサＳ２
がウエイト２３を検知するとその検知信号に基づき制御
装置２４は吸収機構２１における経糸ｚの貯留量を減少
させる方向すなわちビーム１９が経糸ｚを巻取る方向に
駆動装置２０を駆動させる制御信号を出力する。すなわ
ち、制御装置２４は両検知センサＳ１，Ｓ２の検知信号
に基づき駆動装置２０を駆動制御して吸収機構２１に貯
留される経糸ｚの量を一定の範囲に保持する。Next, the operation of the device configured as described above will be described. As shown in FIGS. 1 and 2, the weight 23 has both detection sensors S.
Weaving of the three-dimensional woven fabric is started from the state of being arranged between 1 and S2. In each cycle of the weaving operation of the three-dimensional fabric, the take-up device takes up a fixed amount of the three-dimensional fabric in response to a command signal from the take-up controller 29. Collection controller 2
9 sends a take-back signal to the take-up device and at the same time sends a take-up signal to the control device 24. When the control device 24 receives the take-up signal, the control device 24 sends out the warp yarn z in an amount equal to the take-up amount by the take-up device, based on the outer diameter of the warp yarn z wound around the beam 19 calculated based on the output signal from the measuring device 25. In order to calculate the necessary rotation amount, a drive control signal is output to the drive device 20, and the warp z is sent out in synchronization with the operation of the take-up device. Fluctuation of the path of the warp z from the beam 19 to the end of the three-dimensional fabric due to the opening operation of the warp z, or the measurement error of the outer diameter of the warp z wound around the beam 19 and the activation of the take-up device and the drive device 20, When a variation in the yarn length occurs in the warp z due to a shift at the time of stop, the variation is absorbed by a change in the storage amount of the warp z stored in the absorbing mechanism 21, and the warp z is always substantially constant. The tension is maintained. When the amount of slack in the warp yarn z is reduced and the weight 23 is detected by the one detection sensor S1, the control device 24 causes the control device 24 to store the warp yarn z in the absorbing mechanism 21 based on the detection signal.
A control signal for operating the drive device 20 in the direction of increasing the stored amount of the warp yarn, that is, in the direction of sending out the warp z is output for a predetermined time. On the other hand, the amount of slack of the warp z increases and the other sensor S2
When the weight 23 detects the weight 23, the control device 24 outputs a control signal for driving the drive device 20 in the direction in which the storage amount of the warp z in the absorbing mechanism 21 is reduced, that is, in the direction in which the beam 19 winds the warp z, based on the detection signal. . That is, the control device 24 drives and controls the drive device 20 based on the detection signals of both the detection sensors S1 and S2 to keep the amount of the warp yarn z stored in the absorbing mechanism 21 within a certain range.
ビーム１９に巻かれた経糸ｚの外径は６００〜８００mm
で、経糸ｚの直径はほぼ１mmでしかも引取装置により１
回毎に引取られる経糸ｚの長さは短いので、ビーム１９
に巻かれている経糸ｚの外径の測定は三次元織機の動作
の１サイクル毎に行う必要なく、１００サイクルに１
回、５００サイクルに１回あるいは三次元織物の長さの
短い製品の場合には１製品ごとに１回というように必要
に応じて行えばよい。このようにビーム１９に巻かれた
経糸ｚの外径の測定を織機の動作の１サイクル毎に行わ
ずに、一度測定した値を基準として各サイクル毎のビー
ム１９の駆動量を設定してもその誤差は吸収機構２１に
より補正されるため何ら支障はない。The outer diameter of the warp z wound around the beam 19 is 600 to 800 mm.
The diameter of the warp z is about 1 mm, and it is 1 by the take-up device.
Since the length of the warp z taken up each time is short, the beam 19
It is not necessary to measure the outer diameter of the warp z wound around the machine every 1 cycle of operation of the three-dimensional loom
If necessary, it may be performed once every 500 cycles or once for each product in the case of a product having a short three-dimensional fabric length. Thus, even if the outer diameter of the warp z wound around the beam 19 is not measured for each cycle of the operation of the loom, the drive amount of the beam 19 for each cycle is set based on the once measured value. Since the error is corrected by the absorption mechanism 21, there is no problem.
吸収機構２１のみで経糸ｚに一定の張力を付与した状態
で経糸ｚを供給することは難しい。すなわち、引取装置
による１回の引取量以上の経糸ｚを一時貯留した状態か
ら引取装置の作動により経糸ｚが引取られると、経糸ｚ
のなす角度は第３図（ａ），（ｂ）に示すようにθ１か
らθ２まで変化する。ウエイト２３の重さをＷ、経糸ｚ
のなす角度をθとすると、ウエイト２３により経糸ｚに
加わる張力ＴはＴ＝（Ｗ／２）｛１／cos（θ／２）｝
であらわされ、θが変化することにより張力Ｔも変化す
る。両ガイドローラ２２の中点とウエイト２３との距離
（第３図（ａ）のＬ）を十分大きくとれば、経糸ｚの引
出し前の角度θ１と引出し後の角度θ２との差が小さく
なり張力Ｔの変化量も小さくなるが、経糸ｚを一時貯留
するために必要なスペースが大きくなるという不都合が
ある。本考案の装置では引取装置による三次元織物の引
取動作と同期してその引取り量と同量経糸ｚが送り出さ
れ、吸収機構２１は経糸ｚの開口動作に伴う経糸ｚの弛
みの吸収、ビーム１９に巻かれた経糸ｚの外径の測定誤
差等の補正を行うものであるため、１回の織成サイクル
の際に生じるウエイト２３の移動量は小さく、経糸ｚに
加わる張力はほぼ一定となる。It is difficult to supply the warp z with a constant tension applied to the warp z only by the absorbing mechanism 21. That is, when the warp yarn z is taken up by the operation of the take-up device from the state in which the warp yarn z more than one take-up amount by the take-up device is temporarily stored, the warp yarn z
The angle formed by changes from θ1 to θ2 as shown in FIGS. 3 (a) and 3 (b). The weight of the weight 23 is W, the warp z
The tension T applied to the warp z by the weight 23 is T = (W / 2) {1 / cos (θ / 2)}
The change in θ changes the tension T as well. If the distance between the middle point of both guide rollers 22 and the weight 23 (L in FIG. 3 (a)) is made sufficiently large, the difference between the angle θ1 before the warp z is pulled out and the angle θ2 after the warp z is reduced and the tension Although the amount of change in T is also small, there is the inconvenience that the space required for temporarily storing the warp yarn z becomes large. In the device of the present invention, the warp yarn z is sent out in the same amount as the take-up amount in synchronization with the take-up action of the three-dimensional fabric by the take-up device, and the absorbing mechanism 21 absorbs the looseness of the warp yarn z due to the opening action of the warp yarn z and the beam Since the measurement error of the outer diameter of the warp z wound around 19 is corrected, the amount of movement of the weight 23 generated in one weaving cycle is small, and the tension applied to the warp z is almost constant. Become.
［実施例２］ 次に第２の実施例を第４図に従って説明する。この実施
例の装置では経糸ｚを送り出す際、その送出量を直接測
定するようにした点が前記の実施例と大きく異なってい
る。すなわち、測定装置２５は基端において回動可能に
支持されたレバー３０の先端に測長ローラ３１が装備さ
れるともに、引張りばね３２により測長ローラ３１が常
にビーム１９に巻かれた経糸ｚと当接する状態に保持さ
れている。そして、経糸ｚが送り出される際、測長ロー
ラ３１が経糸ｚの送り出し量に対応して回動され、測長
ローラ３１の回動量に対応した電気信号が制御装置２４
に出力され、制御装置２４は測長ローラ３１からの信号
に基づき経糸ｚの送り出し量を演算し、その値が引取装
置による引取量と同量となるまで駆動装置２０を駆動す
る。この装置の場合には経糸ｚの送り出し量が直接測定
されるため経糸ｚの送り出しが正確になり吸収機構２１
による補正の回数が少なくなり、経糸張力の変動が前記
実施例の装置よりも少なくなる。Second Embodiment Next, a second embodiment will be described with reference to FIG. The apparatus of this embodiment is largely different from the above-mentioned embodiment in that when the warp yarn z is sent out, the sending amount is directly measured. That is, the measuring device 25 is equipped with a length measuring roller 31 at the tip of a lever 30 rotatably supported at the base end, and a warp yarn z in which the length measuring roller 31 is always wound around the beam 19 by a tension spring 32. It is held in abutment. When the warp yarn z is sent out, the length measuring roller 31 is rotated according to the amount of the warp yarn z sent out, and an electric signal corresponding to the amount of rotation of the length measuring roller 31 is sent to the control device 24.
Then, the control device 24 calculates the amount of the warp z sent out based on the signal from the length measuring roller 31, and drives the drive device 20 until the value becomes equal to the amount taken by the take-up device. In the case of this device, since the amount of the warp z fed out is directly measured, the warp z is fed out accurately and the absorbing mechanism 21
As a result, the number of corrections by the method is reduced, and the fluctuation of the warp tension is smaller than that of the device of the above-mentioned embodiment.
なお、本考案は前記両実施例に限定されるものではな
く、例えば、第５図に示すようにビーム１９に巻かれて
いる経糸ｚの外径を測定する測定装置２５としてシリン
ダ２７のピストンロッド２７ａの先端に係合ローラ３３
を直接連結した構成を採用してもよい。又、経糸ｚの張
設方向は垂直方向、水平方向のいずれであってもよい。The present invention is not limited to the above-described embodiments, and for example, as shown in FIG. 5, the piston rod of the cylinder 27 is used as the measuring device 25 for measuring the outer diameter of the warp z wound around the beam 19. The engagement roller 33 is attached to the tip of 27a.
You may employ | adopt the structure which connected directly. The warp yarn z may be stretched in either a vertical direction or a horizontal direction.
［考案の効果］ 以上詳述したように本考案によれば、低張力の経糸ｚを
連続してほぼ一定張力で供給できるため経糸ｚの開口に
必要な力が小さくて済み、経糸開口時に他の糸を蛇行さ
せる等の悪影響を与えることがなく経糸ｚの開口動作を
円滑に行うことができ、高品質の三次元織物の製織が可
能となるとともに、経糸開口装置を駆動するための動力
消費も少なくなる。[Advantages of the Invention] As described in detail above, according to the present invention, the warp z having a low tension can be continuously supplied with a substantially constant tension, so that the force required to open the warp z can be small, and the warp z can be opened at other times. The smoothing operation of the warp z can be performed without any adverse effect such as the meandering of the yarn, and the high-quality three-dimensional fabric can be woven, and the power consumption for driving the warp shedding device is consumed. Also less.
第１〜３図は本考案を具体化した第１の実施例を示すも
のであって、第１図は概略側面図、第２図は吸収機構の
正面図、第３図（ａ），（ｂ）は経糸ｚを屈曲状態で貯
留する場合の経糸ｚに働く張力と経糸ｚのなす角度との
関係を示す概略図、第４図は第２実施例の概略側面図、
第５図は変更例の側面図、第６図は従来の三次元織機の
概略正面図、第７図は別の従来装置の概略正面図であ
る。 糸巻管としてのビーム１９、駆動装置２０、吸収機構２
１、ガイドローラ２２、ウエイト２３、制御装置２４、
測定装置２５、検知装置としての検知センサＳ１，Ｓ
２、経糸ｚ。1 to 3 show a first embodiment in which the present invention is embodied. FIG. 1 is a schematic side view, FIG. 2 is a front view of an absorption mechanism, and FIG. 3 (a), ( b) is a schematic view showing the relationship between the tension acting on the warp z and the angle formed by the warp z when the warp z is stored in a bent state, and FIG. 4 is a schematic side view of the second embodiment,
FIG. 5 is a side view of the modified example, FIG. 6 is a schematic front view of a conventional three-dimensional loom, and FIG. 7 is a schematic front view of another conventional device. Beam 19 as a bobbin, drive device 20, absorption mechanism 2
1, guide roller 22, weight 23, control device 24,
Measuring device 25, detection sensors S1, S as detection devices
2, warp z.
Claims (1)
した経糸（ｚ）群の行及び列間に、経糸（ｚ）の開口を
伴なう状態で第１緯糸及び第２緯糸をそれぞれ経糸
（ｚ）と直交する状態に織り込む三次元織機において、
経糸（ｚ）が巻かれるとともに回転自在に配設された糸
巻管と、糸巻管を回転駆動する駆動装置と、三次元織物
の製織の進行に伴ない三次元織物を間欠的に引取る引取
装置の動作に同期して引取装置による引取量にほぼ等し
い量の経糸（ｚ）を前記糸巻管から送り出すように前記
駆動装置を駆動制御する制御装置と、前記糸巻管から三
次元織物に連なる経糸（ｚ）の糸長の変動を経糸（ｚ）
を屈曲状態で一時貯留することにより吸収する吸収機構
と、該吸収機構に貯留された経糸（ｚ）の貯留量が予め
設定した上限及び下限値に達したことを検知する検知装
置と、該検知装置の検知信号に基づき前記駆動装置を経
糸（ｚ）の貯留量が減少又は増大するように駆動制御す
る制御装置とを設けた三次元織機の経糸供給装置。1. A first weft yarn and a first weft yarn with a plurality of warp yarns (z) stretched in a plurality of rows and a plurality of columns between the rows and columns of a group of warp yarns (z) with openings of the warp yarns (z). In a three-dimensional loom that weaves two wefts in a state orthogonal to the warp (z),
A bobbin tube in which a warp (z) is wound and arranged rotatably, a drive device for rotationally driving the bobbin tube, and a take-up device for intermittently taking up the three-dimensional fabric as the weaving of the three-dimensional fabric progresses. In synchronization with the operation of the winding device, a control device that drives and controls the drive device so as to send out a warp (z) of an amount substantially equal to the take-up amount by the take-up device, and a warp that connects the bobbin to the three-dimensional fabric ( z) The warp (z)
An absorption mechanism that absorbs by temporarily storing in a bent state, a detection device that detects that the storage amount of the warp (z) stored in the absorption mechanism has reached preset upper and lower limits, and the detection device. A warp supply device for a three-dimensional loom, which is provided with a control device that drives and controls the drive device based on a detection signal of the device so as to reduce or increase the storage amount of the warp (z).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13391588U JPH0616945Y2 (en) | 1988-10-13 | 1988-10-13 | Warp supply device for three-dimensional loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13391588U JPH0616945Y2 (en) | 1988-10-13 | 1988-10-13 | Warp supply device for three-dimensional loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0253984U JPH0253984U (en) | 1990-04-18 |
| JPH0616945Y2 true JPH0616945Y2 (en) | 1994-05-02 |
Family
ID=31392217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13391588U Expired - Lifetime JPH0616945Y2 (en) | 1988-10-13 | 1988-10-13 | Warp supply device for three-dimensional loom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0616945Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220147740A (en) * | 2021-04-27 | 2022-11-04 | 주식회사 대경 | Weaving machine for laver dry screen |
-
1988
- 1988-10-13 JP JP13391588U patent/JPH0616945Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220147740A (en) * | 2021-04-27 | 2022-11-04 | 주식회사 대경 | Weaving machine for laver dry screen |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0253984U (en) | 1990-04-18 |
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