JP2004036009A - Method for controlling electric delivering apparatus for loom - Google Patents

Method for controlling electric delivering apparatus for loom Download PDF

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Publication number
JP2004036009A
JP2004036009A JP2002191567A JP2002191567A JP2004036009A JP 2004036009 A JP2004036009 A JP 2004036009A JP 2002191567 A JP2002191567 A JP 2002191567A JP 2002191567 A JP2002191567 A JP 2002191567A JP 2004036009 A JP2004036009 A JP 2004036009A
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Japan
Prior art keywords
tension
loom
speed
rotation
winding diameter
Prior art date
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JP2002191567A
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Japanese (ja)
Inventor
Katsuhiko Sugita
杉田 克彦
Keiei Shu
朱敬栄
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AVR KK
TEXTEC KK
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AVR KK
TEXTEC KK
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Priority to JP2002191567A priority Critical patent/JP2004036009A/en
Priority to KR1020020047426A priority patent/KR20040004024A/en
Publication of JP2004036009A publication Critical patent/JP2004036009A/en
Pending legal-status Critical Current

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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04Control of the tension in warp or cloth
    • D03D49/06Warp let-off mechanisms
    • D03D49/10Driving the warp beam to let the warp off
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/40Applications of tension indicators
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03JAUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00Auxiliary apparatus combined with or associated with looms
    • D03J1/02Auxiliary apparatus combined with or associated with looms for treating warp, e.g. cleaning, moistening
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03JAUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J2700/00Auxiliary apparatus associated with looms; Weavening combined with other operations; Shuttles
    • D03J2700/06Auxiliary devices for inspecting, counting or measuring

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To solve such problems that a tension control part of an electric delivering apparatus becomes complicated and high-speed operation is difficult to increase the cost of the apparatus, etc., and the winding diameter of a delivered beam is usually detected by division of an encoder attached to a crank shaft of a loom by a pulse generator on the delivery side to require high-speed complicated computing because timing during one rotation of the loom is detected for a change in tension due to shedding movement of the loom to carry out averaging processing of the tension for a material responding to the delivering tension at a high speed in a control system in the electric delivering apparatus for the loom. <P>SOLUTION: The whole control system is composed of a simple speed control one. The averaging processing of the tension is carried out by judging whether values are above or below the set value and weighting the number of the values above or below the set value during one rotation to provide a speed correction signal. The quantity of the tension is thereby not directly handled. The method for controlling is simplified according to the method for controlling with which the computing of the winding diameter preparing the reference speed is performed by judging that the winding diameter is changed when the speed correction signal from the tension continues. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は織機の送出張力を制御する、制御方法の改良技術に関するものである。
【0002】
【発明が解決しようとする課題】
織機の送出張力を制御する装置として、従来からある機械式の送出方式から、操作性の向上や張力の精度を上げるため、サーボモータを利用した電動送出装置が主流になりつつある。しかしその制御方法は織機の開口運動のため織機の1回転中での張力変化が大きく、糸の延びも加わり複雑な制御を要求される。このため制御方法が複雑で高速な織機に対応するのが難しく、高価な装置になつている。本発明は制御性能を落とさずに、出来るだけシンプルな制御方法で高速な織機に対応でき、しかも安価な装置を提供することにある。
【0003】
【課題を解決する手段、作用】
従来の高度な制御方法として織機の1回転の間に複数回一般には5〜6回、送出張力をロードセルと織機のクランク軸に取付けたエンコーダの組み合わせで張力とタイミングを検出して、張力設定器で設定された張力と比較しそのデータを織機1回転の平均化処理、あるいはさらに複数回転の平均化処理をして、その偏差で送出のモータを制御していた。
【0004】
本発明では従来の数量はとり扱わづ、張力設定値に対してロードセルからの信号が上か下かの判別で制御
するようにした、従い織機が高速になつても信号処理の時間遅れがなく高速な織機に対応できるようになつた。制御精度については1回転中の上下の数に重みづけして対応し制御精度を確保している。
また制御系については織機回転数と織物密度、送出の巻経のデータを入力して送出モータの基準速度をあらかじめ設定できるようにして制御系の安定を保つているので高速運転に対し安定した運転を行うことが出来る。
【0005】
又送出ビームのたて糸消費による巻経変化に対しては直接巻経を検出せず、速度補正信号が連続で長期間補正信号を出したとき巻経が変化したと判断し速度基準信号の巻経に相当する部分に補正を行い制御系をシンプルにしている。送出ビームのたて糸消費による巻経変化は長時間単位の補正、一般的には10分に1回程度の補正でよく、この制御により制御系を不安定にすることはない。
【0006】
【発明の実施の形態】
図1は本発明の電動送出制御装置のブロック図で、これを基に説明する、設定器3から所望のデータを入力出来る、ロードセル1は、図示していない張力検出ロールに機械的に結合され、送出の張力を検出できるようになつている。エンコーダ2は、図示していない織機のクランク軸に1対1の連結比で結合され織機の1回転中のタイミングを検出できる。
【0007】
設定器3から織機の回転数、織物のよこ糸密度、送出ビームの巻経、送出張力を入力する、計算機4は織機の回転数、織物のよこ糸密度、送出ビームの巻経の3つの要素から送出に必要な基準速度を計算する。さらに計算機4にはロードセル1から送出し張力、エンコーダ2から織機の1回転中のタイミングが取り込まれる。計算機4はエンコーダ2からのタイミングで1例として60°、120°、180°240°、300°、の5回のタイミングを使用することにする。0°のタイミングはおさ打ちで張力が安定しないので使用しない方がよい。
【0008】
この5回のタイミングで、設定器3から設定した送出張力と、ロードセル1から取り込んだ張力を比較して、その値が高いか低いかを判断し、その数てあらかじめ決めた数値を先に記した基準速度に速度補正を加えるようにする。その速度補正量は1例として下記の表1のようになる。表1の ○ は設定張力より高いとき、● は設定張力より低いときを表す。この○ はどのタイミングであつても1個は1個と判断する。
【0009】
【表1】

Figure 2004036009
【0010】
設定値より張力が高い、低いの数におおじて加速、減速の速度補正の割合を制御しているので応答速度を落とすことなく、又設定値より高い低いの判断だけで、数量をとり扱わないので、計算が簡単で織機が高速運転されても比較的簡単な計算機で追随できる。ここに示した数値は必要におおじて変えることができるのは、ゆうまでもない
【0011】
計算機4で上記計算を行い速度信号をドライバ5に送り出す、ドライバ5は送出モータMを回転させる。
回転量はパルスゼネレータPGで検出され、ドライバ5にフィードバックされる。又計算機4にもこの信号がフィードバックされているのはキックバックと呼ばれる、織り段対策の回転量を制御するためである。
送出モータMは図示していない送出ビームと機械的に連結され、たて糸が織機に送り出されることになる。
【0012】
計算機4の送出ビームの巻経データの初期値は設定器3から与えられ、その後のデータはエンコーダ2、パルスゼネレータPGの割算からも行うことができるが、ここでは巻経の変化が遅いことに着目して、速度補正信号が連続、分単位で加速信号を出した場合い、送出ビームの巻経が変化したものとして巻経を補正している。補正量は0.1%以内の補正をする。
【発明の効果】
以上説明したように全体の制御システムを速度制御系を基本に、張力の高い低いの判別による速度補正としたので、織機の高速運転に対応でき、精度の高い、安定した送出が行われる。しかも安価な構成にすることができた。送出ビームの巻経計算もエンコーダ2、パルスゼネレータPGの割算から行わないので
計算機の負担が軽くなっている。
【図面の簡単な説明】
【図1】本発明の電動送出制御装置ブロック図
【符号の説明】
1  エンコーダ
2  ロードセル
3  設定器
4  計算機
5  ドライバ
M  送出モータ
PG  パルスゼネレータ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improved control method for controlling a feeding tension of a loom.
[0002]
[Problems to be solved by the invention]
As a device for controlling the sending tension of a loom, an electric sending device using a servomotor is becoming mainstream from a conventional mechanical sending system in order to improve operability and increase the accuracy of the tension. However, the control method requires a complicated control due to a large change in tension during one rotation of the loom due to the shedding motion of the loom, and the extension of the yarn. For this reason, it is difficult to respond to a high-speed loom with a complicated control method, resulting in an expensive device. An object of the present invention is to provide an inexpensive apparatus that can respond to a high-speed loom with a control method that is as simple as possible without deteriorating control performance.
[0003]
[Means for solving the problem, operation]
As a conventional advanced control method, a tension setting device detects a tension and timing by a combination of a load cell and an encoder attached to a crankshaft of a loom, a plurality of times, generally 5 to 6 times, during one rotation of a loom. The data is compared with the tension set in (1), the data is averaged for one rotation of the loom or a plurality of rotations, and the sending motor is controlled based on the deviation.
[0004]
In the present invention, the conventional quantity is not handled, and the tension set value is controlled by determining whether the signal from the load cell is up or down.Therefore, even if the loom speeds up, there is no time delay in signal processing. It is now compatible with high-speed looms. Regarding the control accuracy, the upper and lower numbers in one rotation are weighted to correspond and the control accuracy is ensured.
As for the control system, data on the number of revolutions of the loom, the density of the woven fabric, and the winding length of the delivery are input and the reference speed of the delivery motor can be set in advance to maintain the stability of the control system. Can be performed.
[0005]
Also, for the change in the warp due to the warp consumption of the sending beam, the warp is not directly detected, and when the speed correction signal is continuously output for a long period of time, it is determined that the warp has changed, and the speed reference signal is warped. The control system is simplified by correcting the portion corresponding to. The change in the warp due to the consumption of the warp of the sending beam may be corrected in units of a long time, generally about once every 10 minutes, and this control does not make the control system unstable.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a block diagram of an electric delivery control device according to the present invention. A load cell 1 to which desired data can be input from a setting device 3 will be described based on the block diagram. A load cell 1 is mechanically connected to a tension detecting roll (not shown). , So that the tension of the delivery can be detected. The encoder 2 is coupled to a crankshaft of a loom (not shown) at a one-to-one connection ratio, and can detect timing during one rotation of the loom.
[0007]
The setting device 3 inputs the number of revolutions of the loom, the weft density of the fabric, the winding of the delivery beam, and the delivery tension. Calculate the reference speed required for. Further, the computer 4 receives the tension transmitted from the load cell 1 and the timing during one rotation of the loom from the encoder 2. The computer 4 uses five timings of 60 °, 120 °, 180 °, 240 °, and 300 ° as timings from the encoder 2. It is better not to use the timing of 0 ° because the tension is not stable due to pushing.
[0008]
At these five times, the sending tension set from the setting device 3 is compared with the tension taken in from the load cell 1 to judge whether the value is high or low, and the number determined in advance is written in advance. The speed correction is added to the set reference speed. The speed correction amount is as shown in Table 1 below as an example. In Table 1, ○ indicates when the tension is higher than the set tension, and ● indicates when the tension is lower than the set tension. This は indicates that one is one at any time.
[0009]
[Table 1]
Figure 2004036009
[0010]
The rate of acceleration / deceleration speed control is controlled according to the number of tensions higher and lower than the set value, so the quantity is handled without lowering the response speed and judging whether it is higher or lower than the set value. Since the calculation is simple, even if the loom is operated at high speed, it can be followed by a relatively simple computer. It is needless to say that the numerical values shown here can be changed as needed.
The computer 4 performs the above calculation and sends a speed signal to the driver 5. The driver 5 rotates the sending motor M.
The rotation amount is detected by the pulse generator PG and fed back to the driver 5. The reason why this signal is also fed back to the computer 4 is to control the amount of rotation, which is called kickback, as a measure against the weaving step.
The delivery motor M is mechanically connected to a delivery beam (not shown), and the warp yarn is delivered to the loom.
[0012]
The initial value of the winding data of the transmission beam of the computer 4 is given from the setting unit 3, and the subsequent data can also be obtained by dividing the encoder 2 and the pulse generator PG. Paying attention to the above, when the speed correction signal outputs the acceleration signal continuously and in units of minutes, the warp is corrected on the assumption that the warp of the transmitted beam has changed. The correction amount is corrected within 0.1%.
【The invention's effect】
As described above, since the entire control system is based on the speed control system and the speed is corrected by determining whether the tension is high or low, it is possible to cope with the high-speed operation of the loom, and highly accurate and stable feeding is performed. Moreover, the configuration could be made inexpensive. Since the calculation of the warp of the transmitted beam is not performed from the division of the encoder 2 and the pulse generator PG, the load on the computer is reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram of an electric transmission control device according to the present invention.
1 encoder 2 load cell 3 setting device 4 computer 5 driver M sending motor PG pulse generator

Claims (3)

織機の電動送出装置において、設定張力と送出張力を織機の1回転中の複数回、高いか低いかの判定をしてその数に対応して送出の基準速度に対して補正を行い、送出の張力制御をする方法。In the electric feeding device of the loom, the set tension and the feeding tension are determined a plurality of times during one rotation of the loom, whether they are high or low, and are corrected with respect to the reference sending speed in accordance with the number, and How to control tension. 請求項1において送出の基準速度を織機の回転数と織り密度と送出ビームの巻経から予め計算しておく方法。2. The method according to claim 1, wherein the reference speed of the delivery is calculated in advance from the rotation speed of the loom, the weaving density, and the winding of the delivery beam. 請求項1において織機1回転の補正が連続して回転数を増加させる方向にある場合い、送出ビームの巻経が小さくなったと判断し、送出の基準速度の巻経データを修正するように制御する方法。In claim 1, when the correction of one rotation of the loom is in a direction of continuously increasing the rotation speed, it is determined that the winding of the transmission beam is reduced, and the control is performed so that the winding data of the reference speed of the transmission is corrected. how to.
JP2002191567A 2002-07-01 2002-07-01 Method for controlling electric delivering apparatus for loom Pending JP2004036009A (en)

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JP2002191567A JP2004036009A (en) 2002-07-01 2002-07-01 Method for controlling electric delivering apparatus for loom
KR1020020047426A KR20040004024A (en) 2002-07-01 2002-08-12 Controlling method of dynamo-feeding mechanism of weaving machine

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JP2002191567A JP2004036009A (en) 2002-07-01 2002-07-01 Method for controlling electric delivering apparatus for loom

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59129889U (en) * 1983-02-16 1984-08-31 津田駒工業株式会社 Electric feed control device
JP2894709B2 (en) * 1988-12-28 1999-05-24 株式会社豊田中央研究所 Warp speed controller
JPH0418151A (en) * 1990-05-11 1992-01-22 Tsudakoma Corp Control device of warp tension
JP3406823B2 (en) * 1997-12-05 2003-05-19 津田駒工業株式会社 Loom delivery control device

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