JPS6151058B2 - - Google Patents
Info
- Publication number
- JPS6151058B2 JPS6151058B2 JP54044770A JP4477079A JPS6151058B2 JP S6151058 B2 JPS6151058 B2 JP S6151058B2 JP 54044770 A JP54044770 A JP 54044770A JP 4477079 A JP4477079 A JP 4477079A JP S6151058 B2 JPS6151058 B2 JP S6151058B2
- Authority
- JP
- Japan
- Prior art keywords
- weft
- detection device
- light
- detection
- thread
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 52
- 238000003780 insertion Methods 0.000 claims description 35
- 230000037431 insertion Effects 0.000 claims description 35
- 230000000630 rising effect Effects 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 235000014676 Phragmites communis Nutrition 0.000 claims description 6
- 238000010009 beating Methods 0.000 claims description 5
- 230000007257 malfunction Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Looms (AREA)
Description
【発明の詳細な説明】
この発明は無杼織機における緯糸検知方法と装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a weft detection method and device in a shuttleless loom.
従来の流体噴射式織機における緯糸検知装置と
しては、一対の発光素子と受光素子を緯糸噴射ノ
ズルの反対側に設け、正常に飛走された緯糸によ
つて前記両素子間を走る光が遮断される事又は反
射される事を検出して、緯糸挿入の成否を判定す
るものが知らている。この様な緯糸検知装置にあ
つては、従来緯糸検知装置を作動させるための作
動開始信号を緯入が完了する直前に発生させて緯
糸検知装置を作動状態にせしめ、更に緯入れが完
了して筬打ちが開始される直前に緯糸検知装置を
不作動状態にするための作動終了信号を発生させ
ていた。そしてこの作動開始信号が発生されてか
ら作動終了信号が発生されるまでに前記緯糸検知
装置の両素子間に緯糸が挿入されることにより、
前記した様に光の遮断を検出しこれによつて正常
に緯糸が挿入されたことを意味する緯糸検知信号
の立上りを形成し、更に前記作動終了信号により
緯糸検知信号の立下りを形成していた。そしてこ
の緯糸検知信号の有無によつて緯入れが正常に行
なわれたか否かを判定して、正常に行なわれない
場合には織機の運転を停止させていた。 A conventional weft detection device for a fluid jet loom has a pair of light emitting element and light receiving element installed on the opposite side of a weft jet nozzle, and the light traveling between the two elements is blocked by the normally flying weft. There is a known device that detects the presence or reflection of the weft yarn and determines whether or not the weft insertion is successful. In the case of such a weft thread detection device, conventionally, an operation start signal for activating the weft thread detection device is generated immediately before weft insertion is completed to put the weft thread detection device into the operating state, and then further after weft insertion is completed. Immediately before beating starts, an operation end signal is generated to put the weft yarn detection device into an inoperable state. By inserting the weft between both elements of the weft detection device between the generation of this operation start signal and the generation of the operation end signal,
As described above, the interruption of the light is detected, thereby forming a rising edge of the weft detection signal indicating that the weft has been inserted normally, and further forming a falling edge of the weft detection signal by the operation end signal. Ta. Based on the presence or absence of this weft detection signal, it is determined whether or not the weft insertion has been performed normally, and if the weft insertion has not been performed normally, the operation of the loom is stopped.
しかし上記した様な緯糸検知装置は次の様な欠
点を有している。即ち、緯入れ完了直後は緯糸の
先端が安定せずふらついているため、前記緯糸検
知装置の両素子間を緯糸が何度も横切つてしまう
事態が生じやすい。このため緯入れが正常に行な
われたか否か判定するための緯糸検知信号の立上
りの形成が不確実なものになり、緯入れが正常な
のに織機が停台してしまう所謂空止り、緯入れが
不完全なのに織機の運転が止まらない所謂空織り
といつた誤動作が発生し易かつた。 However, the weft yarn detection device as described above has the following drawbacks. That is, immediately after weft insertion is completed, the tip of the weft yarn is unstable and wobbles, so that it is likely that the weft yarn will cross over and over again between both elements of the weft yarn detection device. For this reason, the formation of the rising edge of the weft detection signal, which is used to determine whether or not weft insertion has been carried out normally, becomes uncertain, and the loom stops even though weft insertion is normal. Malfunctions such as so-called blank weaving, in which the loom did not stop operating even though it was incomplete, were likely to occur.
この空止り、空機りといつた誤動作をなくすた
めの様な装置が提案されている。即ち、筬の前方
に位置して筬と共にスレーに固定されたエアガイ
ドに前記一対の発光素子及び受光素子よりなるフ
イーラ装置を設けることにより、筬打につれてエ
アガイドの経糸開口部から緯糸が抜けて行く時に
上記発光素子が発生する光を緯糸が遮断する事に
なる。これによつて発光素子が発生する光を正常
に挿入された緯糸によつて遮断し緯糸検知信号を
発生させ、緯入れが正常に行なわれたか否かを判
定する装置がある。しかしこの様な装置において
も、緯入噴射ノズルより飛走した緯糸が途中から
切れてしまうような場合、所謂胴切れが生じた場
合など、これを検知することは不可能であつた。 Devices have been proposed to eliminate these malfunctions such as dead stop and dry start. That is, by providing a feeler device consisting of the pair of light-emitting elements and light-receiving elements on the air guide located in front of the reed and fixed to the sled together with the reed, the weft threads are pulled out from the warp openings of the air guide as the reed is beaten. The weft yarns will block the light generated by the light emitting elements as they move. There is a device that blocks the light generated by the light emitting element by the normally inserted weft, generates a weft detection signal, and determines whether weft insertion has been performed normally. However, even with such a device, it has been impossible to detect cases where the weft yarn that has flown from the weft injection nozzle is broken midway, or when so-called body breakage occurs.
この発明は従来の緯糸効知方式のかゝる諸欠点
に鑑みなされたもので、空止りや空織りといつた
誤動作がなく、しかも胴切れが検知できる流体噴
射式織機における緯糸検知方法と装置を提供する
ことを目的としている。 The present invention was made in view of the various drawbacks of the conventional weft thread effect system, and it provides a weft thread detection method and device for a fluid injection type loom that is free from malfunctions such as dead stop and empty weaving, and can detect body breakage. is intended to provide.
この発明は緯糸検知装置を緯糸噴射ノズルと反
対側に設けた流体噴射式織機に関するもので、そ
の緯糸検知方法は、緯糸挿入完了後の緯糸検知装
置（例えば一対の発光素子と受光素子）を作動状
態にして緯糸検知信号の立上り部分を確実に形成
し、更に作動状態中に緯糸を緯入方向と逆方向に
牽引する事によつて緯糸検知信号の立上り部分を
形成し、緯糸挿入の成否を判定するものである。 The present invention relates to a fluid injection type loom in which a weft detection device is provided on the opposite side of a weft injection nozzle, and the weft detection method is to activate the weft detection device (for example, a pair of light emitting element and light receiving element) after weft insertion is completed. In this state, the rising part of the weft detection signal is reliably formed, and the rising part of the weft detection signal is formed by pulling the weft in the opposite direction to the weft insertion direction during the operating state, and the success or failure of weft insertion is determined. It is something to judge.
更にこの発明の方法を実施する流体噴射式織機
における緯糸検知装置にあつては、一対の発光素
子と受光素子とが、正常に挿入された緯糸によつ
て生じる光量の変化を検出して緯糸挿入の成否を
判定する如く設けられている。この光量の変化を
検出する態様としては、正常に挿入された緯糸に
よる光の遮断を検出するものと正常に挿入された
緯糸による光の反射を検出するものがある。ま
た、この発明の緯糸検知装置では、緯糸を緯入れ
方向とは反対の方向に適宜の長さだけ牽引する牽
引装置が設けられている。更に、この発明の緯糸
検知装置にあつては、緯入れ完了後に前記作動開
始信号が発生させ、この作動開始信号を発生した
後筬打ちが開始される前までの適宜の間に前記作
動終了信号が発生される様に構成されている。 Further, in a weft yarn detection device for a fluid jet loom that implements the method of the present invention, a pair of light emitting elements and a light receiving element detect changes in the amount of light caused by a normally inserted weft yarn, and detect the weft insertion. It is provided to judge the success or failure of the process. As methods for detecting changes in the amount of light, there are two methods: one that detects the interruption of light by a normally inserted weft, and the other that detects the reflection of light by a normally inserted weft. Further, the weft detection device of the present invention is provided with a pulling device that pulls the weft by an appropriate length in a direction opposite to the weft insertion direction. Furthermore, in the weft detection device of the present invention, the operation start signal is generated after weft insertion is completed, and the operation end signal is generated at an appropriate time after the operation start signal is generated and before the beating starts. is configured so that it is generated.
従つて、この発明によれば、緯糸挿入が完了し
挿入緯糸が安定した時点で緯糸検知装置が作動状
態になるため、緯糸検知信号の立上りを確実に形
成する事ができ、更に作動終了信号が発生される
前に前記牽引装置により挿入緯糸が緯入れ方向と
反対方向に牽引されるため挿入緯糸が前記両素子
間より引き抜かれ、これによつて確実に緯糸検知
信号の立下りを形成することができる。また、胴
切れの場合には牽引装置が働いても、緯糸先端は
検知位置から引き出されないため緯糸検知信号の
立下りが形成されず、この緯糸検知信号の形状の
相異によつて胴切れを検知する事が可能になつ
た。 Therefore, according to the present invention, the weft detection device is activated when the weft insertion is completed and the inserted weft is stabilized, so that the rising of the weft detection signal can be reliably formed, and furthermore, the operation end signal can be generated. Since the inserted weft is pulled in a direction opposite to the weft insertion direction by the pulling device before generation, the inserted weft is pulled out from between the two elements, thereby reliably forming a falling edge of the weft detection signal. I can do it. In addition, in the case of body breakage, even if the traction device works, the weft tip is not pulled out from the detection position, so a falling edge of the weft detection signal is not formed, and the difference in the shape of this weft detection signal causes body breakage. It became possible to detect.
以下添付の図面によつてこの発明について詳細
に説明する。 The present invention will be described in detail below with reference to the accompanying drawings.
第１図はこの発明における緯糸検知方法による
緯糸検知信号の発生時期を示したものである。同
図に於て、緯入れ完時刻t1においては、緯糸に先
端がふらついているため、このふらつきがおさま
つた時刻t2においてフイーラ作動開始信号を発生
させる。そしてその後、フイーラ作動終了信号が
発生される前までの間（時刻t2〜t4の間）の適宜
の時刻t3において緯糸を緯入れとは反対の方向に
牽引する。これによりフイーラ信号の立上り、立
下りを形成する訳である。 FIG. 1 shows the timing at which a weft detection signal is generated by the weft detection method according to the present invention. In the figure, at time t 1 when weft insertion is complete, the tip of the weft thread is wobbling, so at time t 2 when this wobbling has subsided, a filler operation start signal is generated. Then, at an appropriate time t3 before the filler operation end signal is generated (between times t2 and t4 ), the weft is pulled in the opposite direction to the weft insertion. This forms the rise and fall of the feeler signal.
第２図はこの発明に係る緯糸検知装置の一実施
例の要部を示したものである。同図に於て、フイ
ーラ装置２は発光２１、受光器２２を含んで構成
されている。発光器２１は受光器２２へ向つて光
を放射する様に配置されており、受光器２２は発
光器２１から放射された光を受ける様に配置され
ている。さらに図示しない緯糸噴射ノズル側に
は、この発明に係る出願人により昭和54年３月13
日付提出の特許願に開示されているウエフトコン
トローラ（図示せず）が設けられている。このウ
エフトコントローラは緯入完了し前記作動開始信
号が発生された後から作動終了信号が発生される
前の適宜な時刻t3に挿入緯糸を緯入方向を逆の方
向に牽引する機能を有するものである。 FIG. 2 shows a main part of an embodiment of a weft detecting device according to the present invention. In the figure, the feeler device 2 includes a light emitter 21 and a light receiver 22. The light emitter 21 is arranged to emit light toward a light receiver 22, and the light receiver 22 is arranged to receive the light emitted from the light emitter 21. Furthermore, on the side of the weft jetting nozzle (not shown), there is a
A weft controller (not shown) is provided, which is disclosed in the filed patent application no. This weft controller has a function of pulling the inserted weft yarn in a direction opposite to the weft insertion direction at an appropriate time t3 after weft insertion is completed and the operation start signal is generated, but before the operation end signal is generated. It is something.
以上の構成を有する緯糸検知装置の動作を説明
する。 The operation of the weft detection device having the above configuration will be explained.
メインノズルにより飛走された緯糸Ｙは筬に設
けられた筬溝部を経由して緯糸検知部２に達す
る。緯入れが正常に行なわれて緯入れが完了する
と緯糸Ｙは第２図に示す点線の位置に達する。緯
入れが完了した直後は緯糸Ｙの先端はふらついて
いるため、緯入れ完了後緯糸Ｙ先端のふらつきが
おさまつた時期を適当に選びこの時に緯糸検知置
２１，２２の作動開始信号が発生される。これに
より一対の発光素子２１と受光素子２１と受光素
子２２とは緯糸Ｙの検出動作を開始し、緯糸検知
信号の立上りが形成される。そして作動開始信号
を出した後、筬打ちが行なわれる前に緯糸噴射ノ
ズル側に設けられたウエフトコントローラの働き
により緯糸Ｙが緯入れとは反対の方向に牽引され
る。 The weft yarn Y flung by the main nozzle reaches the weft yarn detection section 2 via a reed groove provided in the reed. When the weft insertion is completed normally, the weft yarn Y reaches the position indicated by the dotted line in FIG. 2. Immediately after the weft insertion is completed, the tip of the weft Y is wobbly, so the timing when the wobbling of the weft Y tip has subsided after the weft insertion is completed is appropriately selected, and at this time the operation start signal for the weft detection devices 21 and 22 is generated. Ru. As a result, the pair of light-emitting element 21, light-receiving element 21, and light-receiving element 22 start detecting the weft Y, and a rising edge of the weft detection signal is formed. After issuing the operation start signal and before beating is performed, the weft yarn Y is pulled in the opposite direction to the weft insertion by the action of the weft controller provided on the weft injection nozzle side.
これによつて、一対の発光素子２１と受光素子
２２の間から挿入緯糸Ｙが引き抜かれ、第２図に
実線で示す位置まで挿入緯糸が後退する。従つ
て、このとき緯糸検知信号の立下りが形成され
る。これによつて挿入緯糸が検出される。 As a result, the inserted weft Y is pulled out from between the pair of light emitting elements 21 and light receiving elements 22, and the inserted weft Y is retreated to the position shown by the solid line in FIG. Therefore, at this time, a falling edge of the weft detection signal is formed. This allows the inserted weft to be detected.
さらにこの緯糸牽引後筬打ちが行なわれる前に
緯糸検知装置の作動を中止させるための作動終了
信号が出力される。作動終了信号が出力されるこ
とにより緯糸検知装置は緯糸Ｙの検出動作を中止
する。 Further, after the weft is pulled and before beating is performed, an operation end signal is outputted to stop the operation of the weft detecting device. The weft yarn detection device stops detecting the weft yarn Y by outputting the operation end signal.
以上の説明から明らかな様にこの発明によれ
ば、緯入れが正常である限りは緯糸検知信号の立
上り立下りを確実に形成する事ができるため、誤
動作のない緯糸検知動作を行う事が可能になる。
またシヨートピツクやベツトピツクなどの緯糸切
れの場合には緯糸検知信号の立上りがないし、さ
らに胴切れなどの緯糸切れの場合には緯糸検知信
号の立下りがないで、それぞれ緯糸挿入の失敗を
確実に検出しることができる。 As is clear from the above description, according to the present invention, as long as the weft insertion is normal, it is possible to reliably form the rising and falling edges of the weft detection signal, so it is possible to perform the weft detection operation without malfunction. become.
In addition, in the case of weft thread breakage such as shot pick or bed pick, there is no rising of the weft detection signal, and furthermore, in the case of weft thread breakage such as body breakage, there is no fall of the weft detection signal, making it possible to reliably detect failure in weft thread insertion. I can know.
以上の説明から明らかな様に、この発明によれ
ば緯入れ完了後緯糸の先端が位定した時にフイー
ラ作動開始信号を発生させ、その後に緯糸を緯入
れとは反対の方向に牽引することによりフイーラ
信号の立上り立下りを形成しているため誤動作が
なく、しかも胴切れが検知できる無杼織機の緯糸
検知装置を提供することができる。 As is clear from the above description, according to the present invention, a feeler operation start signal is generated when the tip of the weft is positioned after weft insertion is completed, and then the weft is pulled in the opposite direction to the weft insertion. Since the rise and fall of the filler signal is formed, it is possible to provide a weft yarn detection device for a shuttleless loom that does not cause malfunction and can detect body breakage.
第１図はこの発明に係る緯糸検知信号の発生の
タイミングを示す波形図、第２図はこの発明の一
実施例の主要を示す説明図である。
２１……発光器、２２……受光器、２３……経
糸、Ｙ……緯糸。
FIG. 1 is a waveform diagram showing the timing of generation of a weft detection signal according to the present invention, and FIG. 2 is an explanatory diagram showing the main part of an embodiment of the present invention. 21... Emitter, 22... Light receiver, 23... Warp, Y... Weft.
Claims (1)
けられた流体噴射式織機において、 緯糸挿入完了後に緯糸検知装置を作動状態にし
て緯糸検知信号の立上りを形成し、 更に緯糸検知装置の作動状態中に挿入緯糸を緯
入方向と逆方向に牽引することにより緯糸検知位
置から後退せしめ緯糸検知信号の立下りを形成し
て緯糸挿入の成否を判定する。 如き流体噴射式織機の緯糸検知方法。 ２ 緯糸検知装置が緯糸噴射ノズルの反対側に設
けられた流体噴射式織機において、 正常に挿入された緯糸によつて生じる光量の変
化を検出して緯糸挿入の成否を判定する如く設け
られ、かつ緯糸挿入が完了した後作動状態となり
筬打前に不作動になり一対の発光素子と受光素子
と、 上記一対の発光素子と受光素子が作動状態にあ
る適宜のタイミングにおいて挿入緯糸を緯入方向
と逆方向に牽引するウエフトコントローラーと を含んでなる流体噴射式織機の緯糸検知装置。[Scope of Claims] 1. In a fluid jet loom in which a weft detection device is provided on the opposite side of a weft injection nozzle, the weft detection device is activated after weft insertion is completed to form a rising edge of a weft detection signal, and further While the detection device is in operation, the inserted weft is pulled in a direction opposite to the weft insertion direction to retreat from the weft detection position and a falling edge of the weft detection signal is generated to determine whether the weft insertion is successful or not. A weft detection method for fluid jet looms such as 2. A weft thread detection device is installed in a fluid jet loom installed on the opposite side of the weft thread injection nozzle so as to detect a change in the amount of light caused by a normally inserted weft thread to determine whether the weft thread insertion is successful or not, and A pair of light emitting elements and a light receiving element are activated after the weft insertion is completed, and are deactivated before reed beating, and the inserted weft is moved in the weft insertion direction at an appropriate timing when the pair of light emitting elements and light receiving elements are in the operational state. A weft detection device for a fluid jet loom, comprising: a weft controller for pulling in the opposite direction;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4477079A JPS55137247A (en) | 1979-04-11 | 1979-04-11 | Weft yarn detecting method and apparatus in shuttleless loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4477079A JPS55137247A (en) | 1979-04-11 | 1979-04-11 | Weft yarn detecting method and apparatus in shuttleless loom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55137247A JPS55137247A (en) | 1980-10-25 |
| JPS6151058B2 true JPS6151058B2 (en) | 1986-11-07 |
Family
ID=12700646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4477079A Granted JPS55137247A (en) | 1979-04-11 | 1979-04-11 | Weft yarn detecting method and apparatus in shuttleless loom |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55137247A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5427055A (en) * | 1977-07-26 | 1979-03-01 | Kasuga Electric Co | Warp yarn detecting system of weaving machine |
-
1979
- 1979-04-11 JP JP4477079A patent/JPS55137247A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5427055A (en) * | 1977-07-26 | 1979-03-01 | Kasuga Electric Co | Warp yarn detecting system of weaving machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55137247A (en) | 1980-10-25 |
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