JPH0791711B2 - Abnormal untwisted yarn processing method - Google Patents
Abnormal untwisted yarn processing methodInfo
- Publication number
- JPH0791711B2 JPH0791711B2 JP61254351A JP25435186A JPH0791711B2 JP H0791711 B2 JPH0791711 B2 JP H0791711B2 JP 61254351 A JP61254351 A JP 61254351A JP 25435186 A JP25435186 A JP 25435186A JP H0791711 B2 JPH0791711 B2 JP H0791711B2
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- abnormal
- deviation signal
- untwisted
- detected
- 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
Links
Landscapes
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は，熱可塑性合成繊維マルチフイラメント糸を延
伸と同時に摩擦仮撚加工を施す際の異常未解撚糸を検出
処理する方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method for detecting abnormal untwisted yarns when a thermoplastic false fiber multifilament yarn is subjected to friction false twisting simultaneously with drawing. .
（従来の技術） 従来，延伸仮撚加工率において，多数の錘から製造され
た多数のチーズの外側に巻かれた一部の加工糸を検査し
て，このチーズの加工糸の良否を判断して選別してい
た。しかし，異常未解撚糸のような突発的に発生する異
常糸をチエツクするのは，実際には困難であった。(Prior Art) Conventionally, at the draw false twist processing rate, a part of the processed yarn wound on the outside of a large number of cheeses manufactured from a large number of weights is inspected to judge the quality of the processed yarn of this cheese. I was selecting. However, it was actually difficult to check abnormal yarns such as abnormally untwisted yarns that suddenly occurred.
そこで，延伸仮撚加工において，異常糸を検出する方法
としては，例えば特公昭59−3573号公報に記載されてい
るように，解撚張力の斑を張力計で検出する方法が提案
されている。しかし，この方法は糸条の張力変動により
異常糸を検出するものであって，加工中に張力検出部に
直接糸条を接触させるので，検出部に白粉が蓄積した
り，糸条斑以外の要因による異常を検出してしまい，異
常張力と異常糸との関係が明確化しにくいという問題点
がある。Therefore, as a method of detecting an abnormal yarn in the drawn false twisting process, a method of detecting unevenness of the untwisting tension with a tensiometer has been proposed, as described in, for example, Japanese Patent Publication No. 59-3573. . However, this method detects abnormal yarns by fluctuations in the tension of the yarns, and since the yarns are brought into direct contact with the tension detection unit during processing, white powder accumulates on the detection unit and other than yarn irregularities. There is a problem that the abnormalities due to the factors are detected, and it is difficult to clarify the relationship between the abnormal tension and the abnormal thread.
（発明が解決しようとする問題点） 本発明は，上述のような従来の延伸仮撚加工における異
常糸の検出方法の問題点を解消するものであって，その
目的とするところは，延伸仮撚加撚中の糸条に直接検出
装置を接触することなく，正確に異常未解撚糸を検出す
る方法を提供することにある。(Problems to be Solved by the Invention) The present invention solves the problems of the conventional method for detecting an abnormal yarn in the drawn false twisting process described above. An object of the present invention is to provide a method for accurately detecting an abnormal untwisted yarn without directly touching the yarn being twisted and twisted with the detection device.
（問題点を解決するための手段） すなわち，本発明は，熱可塑性合成繊維マルチフイラメ
ント糸を延伸と同時に摩擦仮撚加工を施すに際して，仮
撚加撚部に糸条の太さ斑あるいは崇高性の斑の変化に応
じて偏差信号を発する静電容量偏差信号発生検知装置を
糸条に非接触状態で設けて，連続して偏差信号を検出
し，検出された偏差信号について，特定の周波数以下の
周波数信号を全波整流し，次いで全波整流した波形を積
分し，積分した波形の電圧が所定の電圧以上に達したと
き，異常未解撚糸として検出すると同時に供給ローラの
直前に配したヤーンカツタを作動させて糸条を切断する
ことを特徴とする異常未解撚糸の処理方法を要旨とする
ものである。(Means for Solving the Problems) That is, according to the present invention, when the thermoplastic synthetic fiber multifilament yarn is subjected to the false false twisting process simultaneously with the drawing, the false twisted yarn twisting portion has unevenness in thickness or sublimation of the yarn. An electrostatic capacitance deviation signal generation detection device that emits a deviation signal in response to changes in the spots is provided in the yarn in a non-contact state to continuously detect the deviation signal, and the deviation signal detected is below a specific frequency. The full-wave rectified frequency signal is integrated, then the full-wave rectified waveform is integrated, and when the voltage of the integrated waveform reaches or exceeds a predetermined voltage, it is detected as an abnormal untwisted yarn and at the same time the yarn cutter placed immediately before the supply roller. The gist is a method for treating an abnormally untwisted yarn, which is characterized in that the yarn is cut by operating the.
以下，本発明を詳細に説明する。Hereinafter, the present invention will be described in detail.
第１図は，本発明方法を実施する装置の一例を示す概略
図であって，図において，パーン１から解舒された未延
伸糸又は高配向未延伸糸Ｙは，ガイド2,ヤーンカツタ３
及び４経て供給ローラ５に至る。次いで，供給ローラ５
と延伸ローラ９との間で糸条Ｙは，延伸されると同時
に，摩擦仮撚装置８によって施撚され，第１ヒータ６に
よって熱固定される。延伸ローラ９の下部の第２ヒータ
10,デリベリローラ11を経て糸条Ｙはフリクシヨンロー
ラ12により回転される紙管13に捲取られる。FIG. 1 is a schematic view showing an example of an apparatus for carrying out the method of the present invention. In the figure, the undrawn yarn or highly oriented undrawn yarn Y unwound from a pan 1 is a guide 2, a yarn cutter 3
And 4 to the supply roller 5. Next, supply roller 5
The yarn Y is drawn between the drawing roller 9 and the drawing roller 9 and simultaneously twisted by the friction false twisting device 8 and heat-fixed by the first heater 6. Second heater below the stretching roller 9
The yarn Y passes through the delivery roller 11 and is wound on the paper tube 13 rotated by the friction roller 12.
この際，摩擦仮撚装置８の入側直上部に静電容量偏差信
号発生検出装置７が設けられていて，この内部を糸条Ｙ
が走行し，糸条Ｙの太さ斑又は崇高性の斑を連続的に静
電容量偏差信号として検出する。この糸条の太さ斑や崇
高性の斑は，張力には現れない糸条の振れ，いわゆるバ
ルーンであったり，加撚中に発生した毛羽やループによ
るものであったりするが，これらの現象は，糸条の張力
を測定するのみでは検出することができない。このバル
ーンの発生や，毛羽やループの発生があると，特に摩擦
仮撚加工においては，糸条とデイスク等の摩擦体との接
触状態が異なってくるため，加撚数の変動が生じ，その
結果，異常未解撚糸が発生する。検出された偏差信号に
ついて，特定の周波数以下の周波数信号を全波整流し，
次いで全波整流した波形を積分する。積分した波形の電
圧が所定の電圧以上に達したとき，異常未解撚糸として
検出すると同時に供給ローラ５の直前に配したヤーンカ
ツタ３を作動させて糸条を切断する。At this time, a capacitance deviation signal generation / detection device 7 is provided immediately above the entrance side of the friction false twisting device 8, and the inside of the device is provided with a yarn Y.
Runs and continuously detects a thickness unevenness or a sublime unevenness of the yarn Y as a capacitance deviation signal. The thickness unevenness and sublime unevenness of the yarn may be a yarn deflection that does not appear in tension, a so-called balloon, or fluff or a loop generated during twisting. Cannot be detected only by measuring the tension of the yarn. When the balloons or fluffs or loops are generated, the contact state between the yarn and the friction body such as the disk is different particularly in the friction false twisting process. As a result, abnormal untwisted yarn occurs. Regarding the detected deviation signal, full-wave rectification of frequency signals below a specific frequency is performed,
Then, the full-wave rectified waveform is integrated. When the voltage of the integrated waveform reaches or exceeds a predetermined voltage, it is detected as an abnormal untwisted yarn, and at the same time, the yarn cutter 3 arranged immediately before the supply roller 5 is operated to cut the yarn.
糸条Ｙの太さ斑又は崇高性の班は，第２図Ｉに示すよう
に波形の振幅の大きさによって表れ,aレベルからｂレベ
ルになると異常未解撚糸として検出される。特に異常未
解撚糸として検出される波形は,bのように波形の振幅が
大きくかつ正常糸よりも波形の周波数が小さいものとな
る。これらの異常未解撚糸を確実に検出するため，第１
図Ｉの波形を前波整流し，さらに積分することによりII
のような波形が得られる。この波形から一定電圧以上の
とき異常未解撚糸が発生したことが判明し，容易に異常
未解撚糸が検出される。この略同時に供給ローラの直前
に配したヤーンカツタを作動させることにより，異常未
解撚糸を捲き取らずに，仮撚加工を停止することができ
る。The thickness unevenness or sublimate plaque of the yarn Y appears depending on the amplitude of the waveform as shown in FIG. 2I, and is detected as an abnormal untwisted yarn from the a level to the b level. In particular, the waveform detected as an abnormal untwisted yarn has a large waveform amplitude and a waveform frequency smaller than that of a normal yarn, as in b. In order to reliably detect these abnormal untwisted yarns,
By rectifying the waveform of Figure I by the front wave and further integrating it, II
A waveform like is obtained. From this waveform, it was found that abnormal untwisted yarns occurred when the voltage was above a certain level, and abnormal untwisted yarns were easily detected. By operating the yarn cutter arranged immediately before the supply roller at substantially the same time, the false twisting process can be stopped without winding up the abnormal untwisted yarn.
なお，この検出方法は，摩擦延伸仮撚機に使用すること
が最も有効である。This detection method is most effective when used in a friction drawing false twisting machine.
（実施例） 次に，本発明方法を実施例によって具体的に説明する。(Example) Next, the method of the present invention will be specifically described with reference to Examples.
実施例 デイスク構成１−７−１枚の摩擦延伸仮撚加工機（帝人
精機株式会社製 SDS−８型）に静電容量偏差信号発生
検出装置７（サン電子工業株式会社製GQセンサー）を設
けた装置に，供給糸としてポリエチレンテレフタレート
高配向未延伸糸120d/36fを仕掛け，糸速760m/min,延伸
倍率1.563倍,D/Y（デイスク周速／糸速）1.709,ヒータ
温度205℃で摩擦延伸仮撚加工を行った。この際，上記
静電容量偏差信号発生検出装置にて，連続して糸条Ｙの
斑を静電容量信号としてとらえ,16へルツ以下の周波数
の全波形を整流し，さらにこれを積分し，この波形をチ
ヤートに記録したところ，第２図IIに示す結果が得られ
た。このとき上記チヤートにおいて電圧が3V（第２図II
の点線）以上になったときに，異常未解撚糸としてとら
えるべく，上記検出装置をヤーンカツタに連動させてお
いて，電圧が3V以上になったときに，糸状を切断した。
上記のチヤートにおいて，振幅の小さい部分ａは正常の
加工糸であり，振幅の大きい部分ｂが異常未解撚糸であ
って，振幅と大きい部分ｂと加工された糸条とを対応さ
せると，およそ20m程度の長さの異常未解撚糸と一致し
た。Example Disk configuration 1-7-1 friction drawing false twisting machine (SDS-8 type manufactured by Teijin Seiki Co., Ltd.) is provided with a capacitance deviation signal generation detection device 7 (GQ sensor manufactured by Sun Electronics Co., Ltd.). The machine was equipped with polyethylene terephthalate highly oriented undrawn yarn 120d / 36f as the feeding yarn, and the yarn speed was 760m / min, the draw ratio was 1.563 times, the D / Y (disk peripheral speed / yarn speed) was 1.709, and the heater temperature was 205 ℃ Stretched false twist processing was performed. At this time, the electrostatic capacitance deviation signal generation / detection device continuously captures the unevenness of the yarn Y as an electrostatic capacitance signal, rectifies all waveforms with a frequency of 16 Hertz or less, and further integrates this. When this waveform was recorded on a chart, the results shown in Fig. 2 II were obtained. At this time, the voltage is 3V in the above chart (Fig. 2 II
When the voltage exceeds 3V, the yarn is cut so that the above detection device is linked to the yarn cutter in order to detect it as an abnormal untwisted yarn.
In the above-mentioned chart, the part a with a small amplitude is a normal processed yarn, the part b with a large amplitude is an abnormal untwisted yarn, and when the part with a large amplitude and the processed yarn are made to correspond, It coincided with an abnormal untwisted yarn with a length of about 20 m.
（発明の効果） 以上述べたように，本発明の処理方法によれば正常な仮
撚条件で加工中に，ヒータ汚れが多くなってきたり，供
給糸の長さ方向の物性斑やオイル付着斑等があった場合
に，未解撚糸が発生しても，加工糸として捲取らずに検
知装置で未解撚糸の発生を，正確に感知することがで
き，異常未解撚糸のような不良な糸条を除去することが
できる。したがって，このような加工糸を使用した織編
物の品位は問題がなく，正常な製品を得ることができ
る。(Effects of the Invention) As described above, according to the processing method of the present invention, during processing under normal false twisting conditions, the amount of heater stains increases, physical property unevenness and oil adhesion unevenness in the lengthwise direction of the supplied yarn. Even if untwisted yarn occurs, the undetected untwisted yarn can be accurately detected by the detection device without being wound as a processed yarn, and a defect such as an abnormal untwisted yarn can be detected. The yarn can be removed. Therefore, there is no problem in the quality of the woven or knitted fabric using such processed yarn, and a normal product can be obtained.
第１図は，本発明方法を実施する装置の一例を示す側面
図，第２図Ｉは全波整流前の波形のチヤート，第２図II
は全波整流，積分した波形を積分したチヤートである。FIG. 1 is a side view showing an example of an apparatus for carrying out the method of the present invention, FIG. 2I is a waveform chart before full-wave rectification, and FIG.
Is a chart that integrates full-wave rectified and integrated waveforms.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−167968（ＪＰ，Ａ) 特開 昭49−2913（ＪＰ，Ａ) 特開 昭59−94631（ＪＰ，Ａ) 特開 昭61−91566（ＪＰ，Ａ) 特開 昭58−148619（ＪＰ，Ａ) 特開 昭60−21172（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-60-167968 (JP, A) JP-A-49-2913 (JP, A) JP-A-59-94631 (JP, A) JP-A-61- 91566 (JP, A) JP 58-148619 (JP, A) JP 60-21172 (JP, A)
Claims (1)
延伸と同時に摩擦仮撚加工を施すに際して，仮撚加撚部
に糸条の太さ斑あるいは崇高性の斑の変化に応じて偏差
信号を発する静電容量偏差信号発生検知装置を糸条に非
接触状態で設けて，連続して偏差信号を検出し，検出さ
れた偏差信号について，特定の周波数以下の周波数信号
を全波整流し，次いで全波整流した波形を積分し，積分
した波形の電圧が所定の電圧以上に達したとき，異常未
解撚糸として検出すると同時に供給ローラの直前に配し
たヤーンカツタを作動させて糸条を切断することを特徴
とする異常未解撚糸の処理方法。1. When a thermoplastic synthetic fiber multifilament yarn is subjected to friction false twisting at the same time as being drawn, a deviation signal is generated in the false twisting twisting portion in response to variations in yarn thickness unevenness or sublime unevenness. An electrostatic capacitance deviation signal generation detection device is provided on the yarn in a non-contact state, the deviation signal is continuously detected, and the detected deviation signal is subjected to full-wave rectification of frequency signals below a specific frequency, and then full wave rectification. Wave rectified waveform is integrated, and when the voltage of the integrated waveform reaches or exceeds a predetermined voltage, it is detected as an abnormal untwisted yarn and at the same time the yarn cutter arranged immediately before the supply roller is operated to cut the yarn. A method for treating abnormal untwisted yarns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254351A JPH0791711B2 (en) | 1986-10-24 | 1986-10-24 | Abnormal untwisted yarn processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61254351A JPH0791711B2 (en) | 1986-10-24 | 1986-10-24 | Abnormal untwisted yarn processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63112735A JPS63112735A (en) | 1988-05-17 |
| JPH0791711B2 true JPH0791711B2 (en) | 1995-10-04 |
Family
ID=17263785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61254351A Expired - Lifetime JPH0791711B2 (en) | 1986-10-24 | 1986-10-24 | Abnormal untwisted yarn processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0791711B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115058850B (en) * | 2022-07-11 | 2023-08-18 | 绍兴康利德机械有限公司 | Self-adaptive control method and system for untwisting device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5238134B2 (en) * | 1972-04-28 | 1977-09-27 | ||
| JPS58148619A (en) * | 1982-02-26 | 1983-09-03 | 株式会社明電舎 | Transformer protecting relay |
| JPH0227451B2 (en) * | 1982-11-19 | 1990-06-18 | Teijin Ltd | ENSHINKARY ORIKI |
| JPS6021172A (en) * | 1983-07-15 | 1985-02-02 | Hitachi Ltd | Method for controlling cooling body of continuous casting device |
| JPS60167968A (en) * | 1984-02-06 | 1985-08-31 | 帝人株式会社 | Non-untwisted state detection method for warper machine |
| JPS6191566A (en) * | 1984-10-12 | 1986-05-09 | Hitachi Ltd | Roll flaw detector |
-
1986
- 1986-10-24 JP JP61254351A patent/JPH0791711B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63112735A (en) | 1988-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6536087B2 (en) | Method and apparatus for continuously unwinding and processing a yarn | |
| US3404525A (en) | Low-torque multifilament compact yarn | |
| US11597624B2 (en) | Method and device for texturing a synthetic thread | |
| US3968638A (en) | Product and process | |
| JPH0791711B2 (en) | Abnormal untwisted yarn processing method | |
| US6303938B1 (en) | Method and device for detection of untextured yarn sections in textured filament yarns | |
| US3877213A (en) | Draw textured yarn and process | |
| US4063697A (en) | Device for unthreading yarn from a bobbin | |
| US2690047A (en) | Winding elastic thread | |
| EP1024213B1 (en) | Method for managing draw-false twisting | |
| JPH0892828A (en) | Removal of abnormal part in frictional false twisting | |
| EP0912784B1 (en) | Processing textile strands | |
| JPH0791712B2 (en) | Abnormal untwisted yarn processing method | |
| US3401559A (en) | Method and apparatus for determining the degree of cohesion in multifilament yarn strands | |
| US3765068A (en) | Process and apparatus for the stufferbox crimping of yarns | |
| JPS6212328B2 (en) | ||
| JPS6123297B2 (en) | ||
| JP2509903B2 (en) | Method and apparatus for monitoring the quality of yarn packages | |
| US3768245A (en) | Crimping slub filaments of thermoplastic polymers | |
| JPS5994631A (en) | Stretch false twister | |
| JPS5994630A (en) | Detection of untwisted yarn | |
| JPH03185155A (en) | Method for removing knotted ball of weft | |
| EP0907079A1 (en) | Quality control apparatus for textured filament yarn | |
| JP3453319B2 (en) | Drawing false twist management system and apparatus therefor | |
| JPS60167968A (en) | Non-untwisted state detection method for warper machine |