JPH0978407A - Device for detecting abnormality of yarn feeding of loom - Google Patents

Device for detecting abnormality of yarn feeding of loom

Info

Publication number
JPH0978407A
JPH0978407A JP25568695A JP25568695A JPH0978407A JP H0978407 A JPH0978407 A JP H0978407A JP 25568695 A JP25568695 A JP 25568695A JP 25568695 A JP25568695 A JP 25568695A JP H0978407 A JPH0978407 A JP H0978407A
Authority
JP
Japan
Prior art keywords
weft
yarn
yarn feeding
drum
loom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP25568695A
Other languages
Japanese (ja)
Inventor
Masanori Miyamoto
正徳 宮本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Texsys Co Ltd
Original Assignee
Nissan Texsys Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Texsys Co Ltd filed Critical Nissan Texsys Co Ltd
Priority to JP25568695A priority Critical patent/JPH0978407A/en
Publication of JPH0978407A publication Critical patent/JPH0978407A/en
Pending legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34Handling the weft between bulk storage and weft-inserting means
    • D03D47/36Measuring and cutting the weft
    • D03D47/361Drum-type weft feeding devices
    • D03D47/367Monitoring yarn quantity on the drum

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a device for detecting abnormality of yarn feeding of a loom by preventing weft from a yarn feeding material from taking weft ended to a preliminary yarn feeding material onto a drum and keeping the taken weft from being inserted. SOLUTION: In a system in which an end part Y1 of a yarn feeding material 6 is ended to a starting end part Y2 of a preliminary yarn feeding material 13, both the yarn feeding materials are held on a supporting part 19, a weft Y is drawn out from the yarn feeding material 6, wound on a drum 9 of a storage device 7 for measuring the length of the weft, stored and inserted and when the weft Y from the yarn feeding material 6 is completely drawn out, the weft Y2 from the preliminary yarn feeding material 13 is successively drawn out, this device for detecting abnormality of yarn feeding of a loom is equipped with a sensor 17 for an amount of yarn wound as a means for detecting an amount of weft stored and a control device 14 as a judging means which judges abnormality of yarn feeding and outputs an abnormality stopping signal when a detected value by the sensor 17 for an amount of yarn wound exceeds a preset fixed limit value. The device detects an amount of the yarn stored by the sensor 17 for an amount of yarn wound when the angle of the main shaft of a weaving machine reaches a fixed angle (e.g. 0 degree) is discovered by an angle sensor 15. The device compares the detected value in the detection with a fixed limit value by the control device 14 and judges the abnormality.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、流体噴射式織機の給糸
異常検出装置に関し、具体的には給糸体の終端部と予備
給糸体の始端部とを継ぐことにより、前記給糸体からの
緯糸が全て引き出されたとき、予備給糸体からの緯糸が
継続して引き出されて緯入れされるようにしたものにお
いて、前記緯糸給糸体から引き出される緯糸が予備給糸
体に継がれた緯糸を連れ込んで引き出し、両給糸体から
の緯糸が同時に引き出されて緯入れされるのを防止する
装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn feeding abnormality detecting device for a fluid jet loom, and more specifically, by connecting the end portion of a yarn feeding body and the starting end portion of a preliminary yarn feeding body, When all the weft yarns from the body are drawn out, the weft yarns from the preliminary yarn feeding body are continuously drawn out and weft-inserted, and the weft yarns drawn from the weft yarn feeding body become the preliminary yarn feeding body. The present invention relates to a device that takes in and pulls out spliced weft yarns, and prevents the weft yarns from both yarn feeders from being simultaneously pulled out and wefted.

【0002】[0002]

【従来の技術】従来、実開昭62−191880に開示
されているように、緯入れ中の給糸体の緯糸終端部と予
備給糸体の緯糸始端部を継いでおき、給糸体の緯糸が全
て引き出されたときに、予備給糸体からの緯糸が継続し
て引き出されて緯入れされるようにしたものが知られて
いる。 これを図7で説明すると、給糸体6の緯糸終端
部Y1と予備給糸体13の緯糸始端部Y2を継いで設置
する。そして給糸体6の緯糸Yが引き出されて図外の緯
糸測長貯留装置のドラムに貯留された後緯入れされ、こ
の緯糸Yが全て引き出されたときに予備給糸体13の緯
糸Y2が連続して引き出されて緯入れを継続する。そし
て予備給糸体13の緯糸Y2が引き出されて緯入れされ
るようになると、前記全て緯糸Yが引き出された給糸体
6を新たな給糸体(予備給糸体)に交換し、前記と同様
に緯糸の終端部と始端部を継いでおく。なお、給糸体6
と予備給糸体13は接近させて配置され、予備給糸体1
3からの緯糸Y2が引き出されて緯入れされるときに、
給糸体6からの緯糸Yが引き出されたときの糸路とさほ
ど変化がないようにして、緯糸測長貯留装置のドラムに
巻き付けられる際の緯糸の張力変化、ひいては緯糸がド
ラムから解舒されるときの抵抗変化が少なくなるように
し、安定して緯入れを行うようにしている。
2. Description of the Related Art Conventionally, as disclosed in Japanese Utility Model Laid-Open No. 62-191880, a weft yarn end portion of a yarn feeding body during weft insertion and a weft yarn starting end portion of a preliminary yarn feeding body are spliced to each other. It is known that when all the wefts have been drawn out, the wefts from the preliminary yarn feeder are continuously drawn out and inserted. This will be described with reference to FIG. 7. The weft yarn end portion Y1 of the yarn feeder 6 and the weft yarn start end portion Y2 of the preliminary yarn feeder 13 are installed so as to be joined. Then, the weft Y of the yarn supplying body 6 is drawn out and stored in a drum of a weft length measuring and storing device (not shown), and then weft-inserted. When all the weft Y is drawn out, the weft Y2 of the preliminary yarn supplying body 13 is It is pulled out continuously and weft insertion is continued. When the weft Y2 of the preliminary yarn feeder 13 is pulled out and weft-inserted, the yarn feeder 6 from which all the weft yarns Y have been pulled out is replaced with a new yarn feeder (preliminary yarn feeder), In the same manner as above, the weft yarn end part and the start part are spliced together. The yarn feeder 6
And the preliminary yarn feeder 13 are arranged close to each other, and the preliminary yarn feeder 1
When the weft Y2 from No. 3 is pulled out and weft-inserted,
The weft yarn Y from the yarn feeder 6 should not change so much as the yarn path when it is pulled out, and the weft yarn tension change when it is wound around the drum of the weft measuring and storing device, and thus the weft yarn is unwound from the drum. The change in resistance at the time of cutting is reduced, and weft insertion is performed stably.

【0003】[0003]

【発明が解決しようとする課題】緯糸Yが給糸体6から
緯糸測長貯留装置側に引き出される際には、給糸体6に
巻き付けられた緯糸Yが給糸体6周囲に螺旋を描くよう
に巻解かれながら引き出され、いわゆるバルーニングが
生じている。その際に、図7の点線に示すように給糸体
6からの緯糸Yは、給糸体6に接近配置された予備給糸
体13から引き出され、給糸体6の終端部Y1に継がれ
ている始端部Y2に接触して絡み合い、緯糸Yと共に予
備給糸体13の始端部Y2が引っ張られ、さらに終端部
Y1がその張力により切断してしまい、予備給糸体13
から巻解いて緯糸測長貯留装置側まで連れ込んでしまう
ことがあり、特に緯糸に毛羽の多いスパン糸等を用いた
時には毛羽どうしが絡み合うので、絡み合いが大きくな
り、こうした現象が発生し易い。このように緯糸Yの連
れ込みが発生すると、給糸体6と予備給糸体13の両緯
糸Y、Y2が緯糸測長貯留装置側に引き出されて緯入れ
され(図7の実線)、そのまま長時間作業者が気づかず
にいると、長い範囲に亘って不良反が発生し、その後織
機を停止させて何度も逆転させながら多量に緯入れされ
た不良緯糸を除去して行くといった面倒な作業が必要に
なる。また、糸種によっては、緯糸を除去しても経糸が
伸びたり、こすれたり、緯糸とのこすれにより、織布に
段などの織疵が発生するものもあり、そのような場合に
は不良反になってしまうことになる。これを解決するた
め、給糸体6と予備給糸体13との距離を大きくするこ
とも考えられるが、前記緯糸張力変化が大きくなってし
まったり、設置スペースが拡大することから、採用でき
ない。
When the weft Y is drawn from the yarn feeder 6 toward the weft measuring and storing device, the weft Y wound around the yarn feeder 6 draws a spiral around the yarn feeder 6. As it is unwound, it is pulled out, and so-called ballooning is occurring. At that time, as shown by the dotted line in FIG. 7, the weft yarn Y from the yarn supplying body 6 is pulled out from the preliminary yarn supplying body 13 arranged close to the yarn supplying body 6 and is joined to the terminal end portion Y1 of the yarn supplying body 6. The starting end portion Y2 of the preliminary yarn supplying body 13 is pulled together with the weft yarn Y by coming into contact with the starting end portion Y2 which is formed, and the end portion Y1 is cut by the tension, so that the preliminary yarn supplying body 13 is cut.
There is a case where it is unwound from the side and taken into the weft measuring and storing device side. Especially when a spun yarn having a lot of fluff is used for the weft, the fluffs are entangled with each other, so that the entanglement becomes large and such a phenomenon is likely to occur. When the weft yarn Y is thus brought in, both the weft yarns Y and Y2 of the yarn feeder 6 and the preliminary yarn feeder 13 are drawn out to the weft measuring and storing device side and weft-inserted (solid line in FIG. 7), and the length is kept as it is. If the worker does not notice for a long time, defective warpage occurs over a long range, and then the loom is stopped and the weft is reversed many times to remove a large amount of defective wefts, which is a troublesome work. Will be required. In addition, depending on the yarn type, the warp may be stretched, rubbed, or rubbed with the weft even if the weft is removed, resulting in woven defects such as steps on the woven fabric. Will be. In order to solve this, it is conceivable to increase the distance between the yarn supplying body 6 and the preliminary yarn supplying body 13, but this cannot be adopted because the change in the weft tension becomes large and the installation space expands.

【0004】本発明はこのような従来の問題点に着目し
てなされたものであり、給糸体からの緯糸が予備給糸体
に継がれた緯糸を連れ込んで、そのまま緯入れを継続す
るのを防止するようにした給糸異常検出装置を提供する
ことを目的とする。
The present invention has been made by paying attention to such a conventional problem, and the weft from the yarn supplying body is brought in with the weft connected to the preliminary yarn supplying body and the weft insertion is continued as it is. It is an object of the present invention to provide a yarn feeding abnormality detecting device for preventing the above-mentioned problem.

【0005】[0005]

【課題を解決するための手段】このため、本発明は緯入
れ中の給糸体の終端部と予備給糸体の始端部とを継いで
支持部に設置し、前記給糸体からの緯糸を引き出して該
緯糸測長貯留装置のドラムに巻き付け貯留した後緯入れ
を行い、前記給糸体からの緯糸が全て引き出されたとき
に前記予備給糸体からの緯糸が継続して引き出されて緯
入れされるようにした織機において、前記緯糸測長貯留
装置のドラムに貯留される緯糸の貯留量検出手段と、該
貯留量検出手段にて検出された値が予め定めた所定の限
度値を越えたとき、給糸異常と判断して異常停止信号を
出力する判断手段を備えたことを特徴とする。また、判
断手段は、織機の主軸角度が所定角度になったときに貯
留量検出手段で検出した検出値と、所定の限度値とを比
較判断するものであることを特徴とする。
Therefore, according to the present invention, the weft yarn from the yarn supplying body is installed by continuously connecting the terminal end portion of the yarn supplying body during weft insertion and the starting end portion of the preliminary yarn supplying body to the supporting portion. Is pulled out and wound around the drum of the weft measuring and storing device and stored, and then weft insertion is performed, and when all the wefts from the yarn supplying body are drawn out, the wefts from the preliminary yarn supplying body are continuously drawn out. In a weaving machine in which weft insertion is performed, a storage amount detecting means of the weft stored in the drum of the weft measuring and storing device, and a value detected by the storage amount detecting means have a predetermined predetermined limit value. When it exceeds, it is characterized in that it is provided with a judging means for judging a yarn supply abnormality and outputting an abnormal stop signal. Further, the judging means is characterized by making a judgment by comparing the detection value detected by the storage amount detecting means when the main shaft angle of the loom reaches a predetermined angle with a predetermined limit value.

【0006】[0006]

【作用】この構成によれば、給糸体からの緯糸が引き出
される際、予備給糸体に連なる緯糸を連れ込んで両給糸
体からの緯糸が引き出されて緯糸測長貯留装置のドラム
上に巻き付けられると、ドラムに巻かれる緯糸は一巻き
につき2本分貯留される。すると、緯糸の貯留量検出手
段の検出値が予め定めた限度値を越えるので、これを判
断手段により給糸異常と判断して異常停止信号を出力
し、織機を直ちに停止させる。また、判断手段は、織機
の主軸角度が所定角度になったときに貯留量検出手段で
検出した検出値と、所定の限度値とを比較判断するよう
にすれば、ドラムに測長爪が突入して緯糸が解舒されて
いない非緯入れ時期等の検出値と比較できるので、解舒
される緯糸を誤検出して貯留量が限度値を越えたものと
判断することなく、給糸異常の判断がより確実となる。
According to this structure, when the weft yarn is drawn out from the yarn supplying body, the weft yarns connected to the preliminary yarn supplying body are taken in and the weft yarns from both the yarn supplying bodies are drawn out and placed on the drum of the weft measuring and storing device. When wound, two wefts wound on the drum are stored for each winding. Then, the value detected by the weft yarn storage amount detecting means exceeds the predetermined limit value, and the determining means determines that the yarn supply is abnormal and outputs an abnormal stop signal to immediately stop the loom. Further, if the judgment means compares the detection value detected by the storage amount detection means when the main shaft angle of the loom reaches a predetermined angle with a predetermined limit value, the measuring claw plunges into the drum. Therefore, it is possible to compare with the detected value such as the non-weft insertion time when the weft is not unwound, so it is possible to detect abnormal weft without misdetecting the unwound weft and determining that the storage amount exceeds the limit value. Will be more certain.

【0007】[0007]

【実施例】以下、本発明を図面に基づいて説明する。な
お、図7にて従来技術として説明した部材と同様の部材
には同一の符号を付与して説明する。本発明は図1のブ
ロック図に示すように、緯糸測長貯留装置のドラムに貯
留される緯糸の貯留量検出手段Aと、貯留量検出手段A
にて検出された値が限度値設定手段Bで設定された所定
の限度値を越えたとき、給糸異常と判断して異常停止信
号を出力する判断手段Cを備えており、また判断手段C
は点線で示す主軸角度検出手段Dが所定角度を検出した
とき貯留量検出手段Aで検出した検出値と所定の限度値
とを比較判断するようにしている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. It should be noted that the same members as those described as the related art in FIG. As shown in the block diagram of FIG. 1, the present invention relates to a weft storage amount detection means A and a storage amount detection means A stored in a drum of a weft measurement storage device.
When the value detected by the above exceeds the predetermined limit value set by the limit value setting means B, there is provided a judging means C which judges that the yarn feeding is abnormal and outputs an abnormal stop signal.
When the spindle angle detecting means D indicated by a dotted line detects a predetermined angle, the detection value detected by the storage amount detecting means A and a predetermined limit value are compared and judged.

【0008】図2〜図6は本発明の一実施例を示す図で
ある。まず図2を参照し、支持部19には給糸体6とそ
の近傍に予備給糸体13が支持され、この予備給糸体1
3の糸の始端部Y2を給糸体6の糸の終端部Y1に継い
である。そして給糸体6の緯糸を引き出して緯糸測長貯
留装置7に貯留し、緯入れノズルである主ノズル1にて
緯入れを行う。なお、この例では始端部Y2と終端部Y
1を結ぶようにしているが、これ以外に例えば接着材に
より接着するようにしてもよい。ここで、主ノズル1
は、空気噴射により緯糸Yを緯入れするもので、圧力空
気供給源2から電磁流量制御弁3,サージタンク4及び
電磁開閉弁5を介して、空気が供給される。従って、電
磁流量制御弁3のサージタンク4側に設けられた図外の
圧力センサの検出値により、サージタンク4が予め設定
された圧力となるよう電圧制御によりその空気流量が制
御され、主ノズル1の空気圧力が制御される。また、主
ノズル1の噴射タイミングは電磁開閉弁5にて制御され
る。緯糸Yは、支持部19に支持された給糸体6から引
き出されて緯糸測長貯留装置7のドラム9に貯留された
後、主ノズル1に導かれている。
2 to 6 are views showing an embodiment of the present invention. First, referring to FIG. 2, the supporting portion 19 supports the yarn supplying body 6 and the preliminary yarn supplying body 13 in the vicinity thereof.
The starting end portion Y2 of the yarn No. 3 is joined to the ending end portion Y1 of the yarn of the yarn feeder 6. Then, the weft of the yarn supplying body 6 is pulled out and stored in the weft measuring and storing device 7, and the main nozzle 1 which is a weft inserting nozzle performs weft insertion. In this example, the start end Y2 and the end Y
Although 1 is tied, other than this, for example, an adhesive may be used for bonding. Here, the main nozzle 1
Is for weft-inserting the weft Y by air injection, and air is supplied from the pressure air supply source 2 through the electromagnetic flow control valve 3, surge tank 4 and electromagnetic opening / closing valve 5. Therefore, the air flow rate is controlled by voltage control so that the surge tank 4 reaches a preset pressure by the detection value of the pressure sensor (not shown) provided on the surge tank 4 side of the electromagnetic flow control valve 3, and the main nozzle An air pressure of 1 is controlled. The injection timing of the main nozzle 1 is controlled by the electromagnetic opening / closing valve 5. The weft Y is pulled out from the yarn supplying body 6 supported by the support portion 19, stored in the drum 9 of the weft measuring and storing device 7, and then guided to the main nozzle 1.

【0009】緯糸測長貯留装置7は、図3に示すよう
に、モータ(図示せず)により回転駆動される中空回転
軸8の先端部にベアリング21により相対回転自在にド
ラム支持部材25を支承し、またドラム支持部材25と
本体部26とに永久磁石20,20を設けて吸引力を作
用させ、これによりにドラム支持部材25を静止状態に
保っている。また、ドラム支持部材25には第1支持部
材24が固定されている。そして、6本の線状部材9A
〜9Fを中空回転軸8に対し同心状に配置し、円筒状の
緯糸Yの巻き付け用ドラム9を構成している。また、ド
ラム9を構成する線状部材9A〜9Fの一側がわ端部
は、前記第1支持部材24と第2支持部材23により半
径方向にスライド可能に挟持される。なお、前記第2支
持部材23はねじ30によって第1支持部材24に締め
付け固定される。そして、ねじ30を緩めて線状部材9
A〜9Fを半径方向に移動させ、ドラム9の外周長を変
化できるようになっており、これにより織巾に応じて測
長量を変えることができる。中空回転軸8には、これに
突出しかつ連通する回転ヤーンガイド10が設けてあ
り、この回転ヤーンガイド10の中空回転軸8の対象位
置には、中空回転軸8の回転をなめらかにするバランサ
ウェイト22が設けてある。この回転ヤーンガイド10
によりドラム9上に緯糸Yが巻き付け貯留される。すな
わち、回転ヤーンガイド10から出た緯糸Yはドラム9
のテーパ部9Xに巻き付けられるので、そのテーパ部9
Xを滑り落ち、自身の張力で滑って移動しない貯留部9
内に達する。この作用が連続して行われるので、後から
テーパ部9Xを滑り落ちてくる緯糸Yに押されて貯留部
9上を主ノズル1側に向けて移動する。これにより貯留
部9においては、緯糸Yが螺旋状に整列した状態で待機
する。
As shown in FIG. 3, the weft measuring / storing device 7 supports a drum supporting member 25 by a bearing 21 at the tip of a hollow rotary shaft 8 which is rotationally driven by a motor (not shown). Further, the permanent magnets 20, 20 are provided on the drum supporting member 25 and the main body portion 26 to apply an attractive force, thereby keeping the drum supporting member 25 in a stationary state. The first support member 24 is fixed to the drum support member 25. And the six linear members 9A
9F are arranged concentrically with respect to the hollow rotary shaft 8 to form a cylindrical winding drum 9 for the weft Y. Further, one end of the linear members 9A to 9F forming the drum 9 is sandwiched by the first support member 24 and the second support member 23 so as to be slidable in the radial direction. The second support member 23 is fastened and fixed to the first support member 24 by screws 30. Then, the screw 30 is loosened and the linear member 9
The outer peripheral length of the drum 9 can be changed by moving A to 9F in the radial direction, whereby the length measurement amount can be changed according to the cloth width. The hollow rotary shaft 8 is provided with a rotary yarn guide 10 protruding and communicating with the hollow rotary shaft 8. A balancer weight for smoothing the rotation of the hollow rotary shaft 8 is provided at a target position of the hollow rotary shaft 8 of the rotary yarn guide 10. 22 is provided. This rotating yarn guide 10
As a result, the weft Y is wound and stored on the drum 9. That is, the weft yarn Y that has come out of the rotary yarn guide 10 is the drum 9
The taper portion 9X is wound around the taper portion 9X.
Reservoir 9 that slides down X and does not move due to its own tension
Reach in. Since this action is continuously performed, the weft yarn Y sliding down the taper portion 9X later pushes the storage portion 9 to move it toward the main nozzle 1 side. As a result, the storage section 9 waits in a state where the wefts Y are arranged in a spiral shape.

【0010】ドラム9周囲にあって、本体部26に固定
したブラケット27には、電磁アクチュエータ11が設
けてあり、電磁アクチュエータ11は、ドラム9に突入
・退出する測長爪12を有し、突入状態の測長爪12に
より緯糸Yを係止つつ回転ヤーンガイド10の回転によ
り緯糸Yをドラム9に巻き付けて貯留し、所定の爪抜け
タイミング(緯入れ開始タイミング)で測長爪12を退
出させて主ノズル1の空気噴射により緯糸Yをドラム9
から引き出させて緯入れするようになっている。また、
ブラケット27にはビス33により緯糸解舒センサ16
が取付けられており、更にブラケット27に形成した長
穴31にはビス32により緯糸の貯留量検出手段Aとし
ての巻量センサ17が中空回転軸8の軸方向(図中、左
右方向)に位置調整自在に取り付けられ、この位置調整
により緯糸貯留量の限度値が設定される。なお、この長
穴31とビス32により限度値設定手段Bを構成する。
An electromagnetic actuator 11 is provided on a bracket 27 around the drum 9 and fixed to the main body portion 26. The electromagnetic actuator 11 has a length-measuring claw 12 for entering and leaving the drum 9. While the weft Y is locked by the length measuring pawl 12 in the state, the weft Y is wound around the drum 9 by the rotation of the rotary yarn guide 10 and stored, and the length measuring pawl 12 is retracted at a predetermined nail removal timing (weft insertion start timing). The main nozzle 1 jets the weft Y into the drum 9
It is designed to be pulled out from the machine and weft inserted. Also,
The weft unwinding sensor 16 is attached to the bracket 27 by a screw 33.
Further, the winding amount sensor 17 as the weft storage amount detecting means A is positioned in the slot 31 formed in the bracket 27 by the screw 32 in the axial direction of the hollow rotary shaft 8 (left and right direction in the figure). It is attached so that it can be adjusted, and the limit value of the weft storage amount is set by this position adjustment. The slot 31 and the screw 32 constitute the limit value setting means B.

【0011】図2に戻り、判断手段Cとしての制御回路
14はマイクロコンピュータで構成され、詳細説明は省
略するが、基本的に演算処理部としてCPU、記憶部と
してROM、RAM、そして信号を入出力するインター
フェースを備えている。そして、制御装置14は入力器
18が接続されて、緯入れ条件が設定入力され、織機運
転時には前記設定された緯入れ条件により、電磁流量制
御弁3の空気圧力値の指令を行い、また電磁開閉弁5を
織機の主軸角度に応じて所定のタイミングで開閉指令を
行う。
Returning to FIG. 2, the control circuit 14 as the judging means C is composed of a microcomputer, and a detailed description thereof will be omitted. Basically, a CPU as an arithmetic processing unit, a ROM, a RAM as a storage unit, and a signal are input. It has an interface to output. Then, the controller 14 is connected to the input device 18 to set and input the weft inserting conditions, and when the loom is operating, issues a command for the air pressure value of the electromagnetic flow control valve 3 according to the set weft inserting conditions, The opening / closing valve 5 is opened / closed at a predetermined timing according to the main shaft angle of the loom.

【0012】更にまた制御装置14は、アングルセンサ
15、緯糸解舒センサ16、そして緯糸の巻量センサ1
7に接続され、それぞれから信号が入力されるようにな
っている。アングルセンサ15は、織機主軸と連動して
回転すると共に周囲に等間隔で多数、例えば360個の
凸部を有する回転体15Aに相対させてあり、凸部を検
出して織機主軸の回転角度を検出する。なお、この例で
はアングルセンサ15は前記凸部を一個検出する毎に1
度づつカウントアップし、一周分の360個分の凸部を
カウントアップすると、0度としてリセットされる。従
って、このアングルセンサ15と回転体15Aとで主軸
角度検出手段Dを構成する。
Furthermore, the control device 14 includes an angle sensor 15, a weft unwinding sensor 16, and a weft winding amount sensor 1.
7, and signals are input from each. The angle sensor 15 rotates in association with the loom main shaft and is made to face a rotating body 15A having a large number of, for example, 360 convex portions at equal intervals in the periphery, and detects the convex portion to determine the rotation angle of the loom main spindle. To detect. In this example, the angle sensor 15 is set to 1 each time one of the convex portions is detected.
When the number of increments is incremented by one and the number of protrusions for 360 revolutions is counted up, it is reset as 0 degree. Therefore, the angle sensor 15 and the rotating body 15A constitute the spindle angle detecting means D.

【0013】前記の緯糸解舒センサ16は、緯入れ時に
ドラム9回りを解舒される緯糸Yの通過を検出するもの
で発光素子16Eと受光素子16Fを備えた光電センサ
で構成される。ここで、制御装置14は前記アングルセ
ンサ15が所定角度、例えば主軸角度90度を検出した
とき、緯糸測長貯留装置7の電磁アクチュエータ11に
対し測長爪12がドラム9から退出して緯糸Yを解放す
るよう指令を行い、緯糸解舒センサ16からの緯糸Yの
解舒信号が一ピック分の緯糸巻数、例えば4巻分の解舒
を検出して後すぐさま測長爪12がドラム9に突入して
緯糸Yの5巻き目で緯糸Yを係止するよう指令を行う。
The weft yarn unwinding sensor 16 detects the passage of the weft yarn Y unwound around the drum 9 during weft insertion and is composed of a photoelectric sensor having a light emitting element 16E and a light receiving element 16F. Here, when the angle sensor 15 detects a predetermined angle, for example, a main shaft angle of 90 degrees, the control device 14 causes the measuring claw 12 to withdraw from the drum 9 with respect to the electromagnetic actuator 11 of the weft measuring storage device 7 and weft Y. Is issued, and the unwinding signal of the weft Y from the weft unwinding sensor 16 detects the number of weft windings for one pick, for example, the unwinding of four windings, and the measuring claw 12 immediately reaches the drum 9. A command is issued to rush in and lock the weft Y at the fifth winding of the weft Y.

【0014】巻量センサ17は緯糸の貯留量を検出する
もので、これも緯糸解舒センサ16と同様に発光素子1
7Eと受光素子17Fを備えた光電センサで、図6
(A)に示すように、ドラム9の軸線方向の所定位置に
設定し、受光素子17Fが緯糸の反射光を検知したとき
にドラム9への緯糸Yの巻巾が所定値になったことを検
出する反射型となっている。ここで、巻量センサ17の
位置はブラケット27の長穴31によりドラム9の軸線
方向の所定位置に設定され、ビス32により固定される
が、その位置は、通常ドラム9に貯留される最大貯留量
Xと、その2倍の貯留量2X(給糸体6の緯糸Yが予備
給糸体13の緯糸を連れ込んで貯留したときは2本同時
に巻き付けられるから、貯留量が約2倍となる)の間の
任意の位置を貯留量の限度値として設定するようにす
る。なお織機の通常運転中における緯糸貯留量は、緯糸
の解舒量に応じて回転ヤーンガイド10の回転速度が制
御されるが、基本的に例えば単丁の場合は、織機回転数
×1ピック分の緯糸解舒数に設定され、その貯留量は2
〜4ピック分(貯留量が少な過ぎると緯入れ糸が不足
し、貯留量が多過ぎるとドラム9上での糸の絡み,重な
り,張力過大となる)の範囲となる。
The winding amount sensor 17 detects the storage amount of the weft, and like the weft unwinding sensor 16, this is also the light emitting element 1.
The photoelectric sensor including 7E and the light receiving element 17F shown in FIG.
As shown in (A), it is set at a predetermined position in the axial direction of the drum 9, and when the light receiving element 17F detects the reflected light of the weft, the winding width of the weft Y on the drum 9 reaches a predetermined value. It is a reflective type for detecting. Here, the position of the winding amount sensor 17 is set to a predetermined position in the axial direction of the drum 9 by the long hole 31 of the bracket 27 and fixed by the screw 32, but that position is the maximum storage normally stored in the drum 9. Amount X and twice the amount stored 2X (When the weft yarn Y of the yarn feeder 6 is stored together with the weft yarn of the preliminary yarn feeder 13, the two wefts are wound at the same time, so the storage amount is doubled) Set any position between the two as the limit value of the storage amount. The weft storage amount during normal operation of the loom is controlled by the rotational speed of the rotary yarn guide 10 in accordance with the unwinding amount of the weft yarns. The number of weft unwinding is set to 2 and the storage amount is 2
Up to 4 picks (when the storage amount is too small, the weft insertion yarns are insufficient, and when the storage amount is too large, the yarns are entangled and overlapped on the drum 9, and the tension is excessive).

【0015】なお、巻量センサ17は、図6(B)に示
すようにドラム9の外側と内側の一方に発光部17B、
そして他方に受光部17Cを設けて透過型とし、緯糸に
よって透過光量が小さくなるのを受光部17Cで検出す
ることにより検出するようにしてもよい。また、図6
(C)に示すように、発光素子と受光素子を備えた反射
型の光電センサ17Aを通常の緯糸貯留量X内に配置
し、その反射光量の相違により緯糸の有無を検出し、所
定値以上の貯留量になったのを検出してもよい。すなわ
ち、緯糸が2本同時に巻き付けられたときには、ドラム
9上に巻き付けられる緯糸どうしの隙間が狭くなり、反
射光量が変化する。そのため、通常の緯糸貯留量X内に
配置しても緯糸貯留量が検出できるのである。このと
き、巻量センサ17の位置は一定位置で固定してよく、
制御装置14には、受光量(緯糸の反射光量)が所定値
以上となるのを限度値として入力器18に設定する。こ
の場合には、入力器18が限度値設定手段Bとして構成
される。また、光電センサ17Aは、色覚センサ,明度
センサ等により緯糸貯留量(密度)を検出したり、レー
ザ変位センサを用いてドラム9に緯糸Yが貯留される高
さ(2本まとめて貯留されるので、緯糸は重なり合って
いるため、通常よりも高くなる)を検出するようにして
もよい。
As shown in FIG. 6B, the winding amount sensor 17 has a light emitting portion 17B on one of the outer side and the inner side of the drum 9.
Then, the light receiving portion 17C may be provided on the other side to make it a transmission type, and the light receiving portion 17C may detect that the transmitted light amount is reduced by the weft yarn. FIG.
As shown in (C), a reflection type photoelectric sensor 17A including a light emitting element and a light receiving element is arranged in the normal weft storage amount X, and the presence or absence of the weft is detected based on the difference in the reflected light amount, and a predetermined value or more is detected. It may be detected that the storage amount has reached the limit. That is, when two wefts are wound at the same time, the gap between the wefts wound on the drum 9 becomes narrow, and the amount of reflected light changes. Therefore, the weft storage amount can be detected even if the weft storage amount is arranged within the normal weft storage amount X. At this time, the position of the winding amount sensor 17 may be fixed at a fixed position,
In the control device 14, the input device 18 is set with the limit value of the amount of received light (the amount of reflected light of the weft yarn) being a predetermined value or more. In this case, the input device 18 is configured as the limit value setting means B. Further, the photoelectric sensor 17A detects the weft storage amount (density) by a color vision sensor, a lightness sensor, or the like, or the height at which the weft Y is stored on the drum 9 using a laser displacement sensor (two yarns are stored together). Therefore, since the wefts overlap each other, the wefts are higher than usual).

【0016】以上のように構成することにより、緯糸貯
留量検出手段としての巻量センサ17の検出値が、予め
定めた所定の限度値を越えたとき、判断手段としての制
御装置14は給糸異常すなわち給糸体の緯糸が予備給糸
体の緯糸を連れ込んで引き出された状態と判断し、異常
停止信号を出力する。
With the above-mentioned structure, when the detected value of the winding amount sensor 17 as the weft storage amount detecting means exceeds the predetermined limit value, the control device 14 as the judging means supplies the yarn. It is determined that there is an abnormality, that is, the weft of the yarn supplying body is pulled out together with the weft of the preliminary yarn supplying body, and an abnormal stop signal is output.

【0017】その作用を図5を参照して説明すると、ま
ずステップS1にて貯留量限度値の設定として、巻量セ
ンサ17の取付位置をブラケット27の長穴31により
所定位置、すなわち図6(A)に示す最大貯留量Xとそ
の2倍の2Xの間の範囲の所定位置に設定してビス32
により固定する。また、巻量センサ17が検出する角度
を非緯入れ期間の例えば0度を入力器18を介して制御
装置14に入力する。また、測長爪12がドラム9から
退出する主軸角度や、主ノズル1の噴射空気圧力設定
値、或いはノズル1の噴射タイミング等の緯入れ条件を
設定する。
The operation will be described with reference to FIG. 5. First, in step S1, as the storage amount limit value is set, the mounting position of the winding amount sensor 17 is set at a predetermined position by the elongated hole 31 of the bracket 27, that is, FIG. The screw 32 is set at a predetermined position in the range between the maximum storage amount X shown in A) and twice the maximum storage amount X.
Fix with. Further, the angle detected by the winding amount sensor 17 is input to the control device 14 via the input device 18, for example, 0 degree in the non-weft insertion period. In addition, weft insertion conditions such as the main shaft angle at which the length-measuring claw 12 exits from the drum 9, the set value of the injection air pressure of the main nozzle 1, or the injection timing of the nozzle 1 are set.

【0018】その後ステップS2にて織機を始動し、筬
打運動,経糸開口運動と共に、ステップS1にて設定さ
れた緯入れ条件にて緯入れが行われる。すなわち、経糸
開口運動、筬打運動と共に、電磁流量制御弁3によりサ
ージタンク4内は設定された所定の空気圧力となり、ま
たアングルセンサ15により検出される所定の主軸角度
で電磁開閉弁5が開閉されることにより、所定のタイミ
ングで主ノズル1から空気噴射がなされる。また、前記
アングルセンサ15が所定角度を検出したとき、緯糸測
長貯留装置7の電磁アクチュエータ11に対し測長爪1
2がドラム9から退出して緯糸Yを解放し、緯糸解舒セ
ンサ16からの緯糸Yの解舒信号が一ピック分の緯糸巻
数の解舒を検出したときに測長爪12がドラム9に突入
して緯糸Yを係止する。
After that, the loom is started in step S2, and the weft insertion is performed under the weft insertion conditions set in step S1 together with the beating motion and the warp shedding motion. That is, along with the warp shedding motion and the beating motion, the electromagnetic flow control valve 3 causes the surge tank 4 to have a predetermined air pressure that is set, and the solenoid on-off valve 5 opens and closes at a predetermined spindle angle detected by the angle sensor 15. As a result, air is ejected from the main nozzle 1 at a predetermined timing. When the angle sensor 15 detects a predetermined angle, the length measuring claw 1 is moved to the electromagnetic actuator 11 of the weft length measuring and storing device 7.
2 withdraws from the drum 9 to release the weft Y, and when the unwinding signal of the weft Y from the weft unwinding sensor 16 detects the unwinding of the number of weft windings for one pick, the measuring claw 12 moves to the drum 9. It rushes in and locks the weft Y.

【0019】次いで、ステップS3にてアングルセンサ
16により織機主軸角度を検出し、ステップS4で織機
主軸角度0度の設定値になったのを検出すると(YE
S)、その時点で巻量センサ17により緯糸測長貯留装
置7のドラム9に巻き付けられる緯糸Yの貯留量を検出
して制御装置14に入力する(ステップ5)。これによ
り、巻量センサ17が解舒中の緯糸を誤検知して、限度
値を越えたものとし、給糸異常として判断することがな
い。その後ステップS6にて前記巻量センサ17の検出
値が限度値を越えたか否かを制御装置14にて判断し
(この例では緯糸を検出していれば限度値を越えてお
り、検出していなければ限度値を越えていないと判断す
る)、越えていない(NO)ならばステップS3に戻
り、もし越えた(YES)ならばステップS7にて異常
停止信号を出力し、図外の主軸モータの停止と共に制動
装置の作動、電磁開閉弁5の作動停止、測長爪12のド
ラム9への突入動作等により、織機を停止させる(ステ
ップS8)。
Next, in step S3, the angle of the loom spindle angle is detected by the angle sensor 16, and in step S4, it is detected that the set value of the loom spindle angle is 0 degrees (YE
S) At that point, the winding amount sensor 17 detects the storage amount of the weft Y wound around the drum 9 of the weft measuring and storing device 7 and inputs it to the control device 14 (step 5). As a result, the winding amount sensor 17 does not erroneously detect the unwound weft and considers it as exceeding the limit value, and does not determine that the yarn feeding is abnormal. After that, in step S6, the control device 14 determines whether or not the detection value of the winding amount sensor 17 exceeds the limit value (in this example, if the weft yarn is detected, the limit value is exceeded. If it is not exceeded (NO), the process returns to step S3, and if it is exceeded (YES), an abnormal stop signal is output at step S7, and the spindle motor not shown is shown. Stopping the loom is stopped by stopping the operation of the braking device, stopping the operation of the electromagnetic on-off valve 5, and inserting the length measuring claw 12 into the drum 9 (step S8).

【0020】[0020]

【発明の効果】この構成によれば、給糸体からの緯糸が
予備給糸体からの緯糸を連れ込んで、両給糸体からの緯
糸が引き出されて緯糸測長貯留装置のドラム上に巻き付
けられると、ドラムに巻かれる緯糸は一巻きにつき2本
分貯留される。すると、緯糸の貯留量検出手段の検出値
が限度値設定手段により設定された所定の限度値を越え
るので、これを給糸異常判断手段により判断して異常停
止信号を出力し、予備給糸体からの緯糸を連れ込んだま
ま緯入れを継続することがなく、織機は直ちに停止する
ことができる。特に、本発明にあっては、給糸異常が発
生したときの緯糸が緯糸測長貯留装置に貯留された時点
で検出されるので、迅速に検出ができ、緯入れが継続さ
れて不良反を発生することなく、また面倒な緯糸修復の
作業も極めて少ないという効果がある。なお判断手段
は、織機の主軸角度が所定角度になったときの貯留量検
出手段による検出値と、所定の限度値とを比較判断する
ようにすれば、ドラムに測長爪が突入して緯糸が解舒さ
れていない非緯入れ時期等の検出値と比較できるので、
解舒される緯糸を誤検出して貯留量が限度値を越えたも
のと判断することなく、給糸異常の判断がより確実とな
るという効果がある。
According to this structure, the weft yarns from the yarn feeders take in the weft yarns from the preliminary yarn feeders, the weft yarns from both the yarn feeders are pulled out, and wound around the drum of the weft measuring and storing device. Then, two wefts wound on the drum are stored for each winding. Then, the detected value of the weft storage amount detecting means exceeds the predetermined limit value set by the limit value setting means, so this is judged by the yarn supply abnormality judging means, and an abnormal stop signal is outputted, and the preliminary yarn supplying body is supplied. The weaving machine can be stopped immediately without continuing the weft insertion with the weft from In particular, in the present invention, when the weft supply abnormality occurs, the weft is detected at the time when the weft is stored in the weft measuring and storing device. There is an effect that it does not occur and there is very little troublesome weft repair work. If the determination means compares the value detected by the storage amount detection means when the main shaft angle of the loom reaches a predetermined angle with a predetermined limit value, the measuring claw plunges into the drum and the weft Since it can be compared with the detection value such as the non-weft insertion time that is not unwound,
There is an effect that it is possible to more reliably determine the yarn feeding abnormality without erroneously detecting the unwound yarn to determine that the storage amount exceeds the limit value.

【0021】[0021]

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の構成を示すブロック図FIG. 1 is a block diagram showing the configuration of the present invention.

【図2】本発明の一実施例の全体構成を示すブロック図FIG. 2 is a block diagram showing the overall configuration of an embodiment of the present invention.

【図3】図2の要部を説明する正面説明図FIG. 3 is a front explanatory view for explaining a main part of FIG.

【図4】図3の矢視A図FIG. 4 is an arrow A view of FIG.

【図5】本発明の一実施例の作動を示すフローチャートFIG. 5 is a flowchart showing the operation of the embodiment of the present invention.

【図6】本発明の一実施例を示す要部説明図FIG. 6 is an explanatory view of a main part showing an embodiment of the present invention.

【図7】従来技術を説明する説明図FIG. 7 is an explanatory diagram illustrating a conventional technique.

【符号の説明】[Explanation of symbols]

1 主ノズル 6 給糸体 7 緯糸測長貯留装置 9 ドラム 12 測長爪 13 予備給糸体 14 制御装置(判別手段) 15 アングルセンサ (主軸角度検出手段) 15A 回転体 (主軸角度検出手段) 16 緯糸解舒センサ 17 巻量センサ(緯糸貯留量検出手段) 18 入力器 27 ブラケット 31 長穴 32 ビス 1 Main Nozzle 6 Yarn Supply Body 7 Weft Measuring Length Storage Device 9 Drum 12 Length Measuring Claw 13 Preliminary Yarn Supply Body 14 Control Device (Discriminating Means) 15 Angle Sensor (Main Spindle Angle Detecting Means) 15A Rotating Body (Spindle Angle Detecting Means) 16 Weft unwinding sensor 17 Winding amount sensor (weft storage amount detecting means) 18 Input device 27 Bracket 31 Slotted hole 32 Screw

フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 D06H 3/08 D06H 3/08 G01N 21/89 G01N 21/89 C Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI Technical display location D06H 3/08 D06H 3/08 G01N 21/89 G01N 21/89 C

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】給糸体の終端部と予備給糸体の始端部とを
継いで支持部に設置し、前記給糸体からの緯糸を引き出
して緯糸測長貯留装置のドラムに巻き付け貯留した後緯
入れを行い、前記給糸体からの緯糸が全て引き出された
ときに前記予備給糸体からの緯糸が継続して引き出され
て緯入れされるようにした織機において、前記緯糸測長
貯留装置のドラムに貯留される緯糸の貯留量検出手段
と、該貯留量検出手段にて検出された値が予め設定され
た所定の限度値を越えたとき、給糸異常と判断して異常
停止信号を出力する判断手段を備えたことを特徴とする
織機の給糸異常検出装置。
1. An end portion of a yarn supplying body and a starting end portion of a preliminary yarn supplying body are spliced together and installed in a supporting portion, and wefts from the yarn supplying body are drawn out and wound around a drum of a weft measuring and storing device and stored. In the loom in which the back weft insertion is performed, and when all the wefts from the yarn feeder are pulled out, the weft from the preliminary yarn feeder is continuously drawn out and weft-inserted A weft yarn storage amount detecting means stored in the drum of the apparatus, and when the value detected by the storage amount detecting means exceeds a preset predetermined limit value, it is determined that the yarn supply is abnormal and an abnormal stop signal is given. A yarn feeding abnormality detecting device for a loom, comprising: a determining unit that outputs
【請求項2】判断手段は、織機の主軸角度が所定角度に
なったときに貯留量検出手段で検出した検出値と、所定
の限度値とを比較判断するものであることを特徴とする
請求項1に記載の織機の給糸異常検出装置。
2. The determination means compares the detection value detected by the storage amount detection means when the main shaft angle of the loom reaches a predetermined angle with a predetermined limit value. Item 1. A yarn feeding abnormality detecting device for a loom according to Item 1.
JP25568695A 1995-09-07 1995-09-07 Device for detecting abnormality of yarn feeding of loom Pending JPH0978407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25568695A JPH0978407A (en) 1995-09-07 1995-09-07 Device for detecting abnormality of yarn feeding of loom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25568695A JPH0978407A (en) 1995-09-07 1995-09-07 Device for detecting abnormality of yarn feeding of loom

Publications (1)

Publication Number Publication Date
JPH0978407A true JPH0978407A (en) 1997-03-25

Family

ID=17282223

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25568695A Pending JPH0978407A (en) 1995-09-07 1995-09-07 Device for detecting abnormality of yarn feeding of loom

Country Status (1)

Country Link
JP (1) JPH0978407A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1021171B1 (en) * 2012-01-17 2015-05-26 Kabushiki Kaisha Toyota Jidoshokki DEVICE FOR DETECTING FRAME WIRE BREAK IN A FLUID JET WIRE MACHINE IN WHICH MULTIPLE FRAME WIRES ARE SIMULTANEOUSLY INSERTED
CN104790103A (en) * 2015-04-08 2015-07-22 芜湖品度电子科技有限公司 Shell of textile machine control case
JP2020041251A (en) * 2018-09-07 2020-03-19 ロイ エス.アール.エル.Roj S.R.L. Weft thread reflection optical sensor in weft feeder for weaving

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1021171B1 (en) * 2012-01-17 2015-05-26 Kabushiki Kaisha Toyota Jidoshokki DEVICE FOR DETECTING FRAME WIRE BREAK IN A FLUID JET WIRE MACHINE IN WHICH MULTIPLE FRAME WIRES ARE SIMULTANEOUSLY INSERTED
CN104790103A (en) * 2015-04-08 2015-07-22 芜湖品度电子科技有限公司 Shell of textile machine control case
JP2020041251A (en) * 2018-09-07 2020-03-19 ロイ エス.アール.エル.Roj S.R.L. Weft thread reflection optical sensor in weft feeder for weaving

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