JPH0372553B2 - - Google Patents
Info
- Publication number
- JPH0372553B2 JPH0372553B2 JP3256184A JP3256184A JPH0372553B2 JP H0372553 B2 JPH0372553 B2 JP H0372553B2 JP 3256184 A JP3256184 A JP 3256184A JP 3256184 A JP3256184 A JP 3256184A JP H0372553 B2 JPH0372553 B2 JP H0372553B2
- Authority
- JP
- Japan
- Prior art keywords
- thread
- speed
- control device
- resistor
- circuit
- 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
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
- B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Landscapes
- Tension Adjustment In Filamentary Materials (AREA)
Description
【発明の詳細な説明】
本発明はボビンに巻かれた糸を一定張力を保ち
ながら解じよする装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for unwinding a thread wound around a bobbin while maintaining a constant tension.
従来のこの種の装置は、高価で、しかも強度の
弱い糸の張力を微細に制御することが困難である
等の不都合があつた。 Conventional devices of this type are expensive and have disadvantages such as difficulty in finely controlling the tension of the weak thread.
本発明はかかる不都合を無くすことをその目的
としたもので、スピンドルに装着されたボビンに
巻かれた糸をダンサーロールを解して解じよし、
ダンサーアームに揺動より検出した糸の張力に応
じてスピンドル駆動用モータの速度を速度制御装
置により制御して糸の張力が一定になるようにし
たものにおいて、前記モータに連結された交流速
度発電機を前記速度制御装置の負帰還回路に接続
する回路に、直流端子にコンデンサと抵抗の並列
回路を接続した整流回路を介入すると共に、前記
ダンサーアームにその揺動に応じて抵抗値が変化
する磁気抵抗効果素子からなる速度設定抵抗器を
連結し、該抵抗器を速度制御装置に接続したこと
を特徴とする。 The purpose of the present invention is to eliminate such inconveniences, and it is possible to unravel the thread wound around the bobbin attached to the spindle through a dancer roll.
A speed control device controls the speed of a spindle driving motor according to the tension of the thread detected by swinging the dancer arm so that the tension of the thread is constant, and an AC speed generator connected to the motor. A rectifier circuit in which a parallel circuit of a capacitor and a resistor is connected to a DC terminal is inserted into the circuit that connects the machine to the negative feedback circuit of the speed control device, and the resistance value of the dancer arm changes according to its swing. The present invention is characterized in that a speed setting resistor made of a magnetoresistive element is connected, and the resistor is connected to a speed control device.
以下本発明の実施例を図面につき説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図Ａ及びＢは、本発明の一実施例の糸解じ
よ装置の一部截断正面図及び側面図である。 1A and 1B are a partially cutaway front view and a side view of a thread untying device according to an embodiment of the present invention.
同図において、１は解じよすべき糸２が巻かれ
たボビン３を装置するスピンドルで、該スピンド
ル１はベルト４を介して例えば可変速型誘導モー
タ５で駆動されるようにした。６は速度制御装置
７を取付けた張力検出器で、糸２は該張力検出器
６の上下動するダンサーローラ８及び案内ローラ
９、更には図示しないがフイードローラを介して
巻取機により一定速度で解じよされるようにし
た。 In the figure, reference numeral 1 denotes a spindle for mounting a bobbin 3 on which a thread 2 to be unraveled is wound, and the spindle 1 is driven by, for example, a variable speed induction motor 5 via a belt 4. Reference numeral 6 denotes a tension detector to which a speed control device 7 is attached, and the yarn 2 is passed through a dancer roller 8 and a guide roller 9 that move up and down of the tension detector 6, and a feed roller (not shown), and is then moved at a constant speed by a winding machine. I tried to make it easier to understand.
第２図Ａ及びＢは前記張力検出器６のカバーを
除去した正面図及び截断平面図を示す。 2A and 2B show a front view and a cutaway plan view of the tension detector 6 with the cover removed.
同図において、１０は中間部がボス１１により
支軸１２に回転自在に軸支されたダンターアーム
で、その一端にはダンサーローラ８を回転自在に
取付け、他端にはバランスウエイト１３を取付け
て該アーム１０のバランスをとり、前記ボス１１
に巻かれた紐１４の他端に重鐘１５を垂下し、糸
２に適度の張力を付与するようにし、更に必要に
応じてウエイト１６をつけて張力を更に増加する
ようにした。また前記ボス１１の一端に形成され
た歯車１７と螺合するピニオン１８によりダンサ
ーアーム１０の揺動と連動する速度設定抵抗器１
９を設け、該設定器１９は前記速度制御装置７に
接続した。該速度設定抵抗器１９は公知の磁気抵
抗効果素子からなり、例えば磁石をピニオン１８
に固着した軸２０に固着し、該軸２０が回動した
時の磁石の移動により抵抗値が変化するようにし
た。 In the figure, reference numeral 10 denotes a dancer arm whose intermediate portion is rotatably supported on a support shaft 12 by a boss 11. A dancer roller 8 is rotatably attached to one end of the dancer arm, and a balance weight 13 is attached to the other end of the dancer arm. Balance the arm 10 and
A heavy bell 15 is suspended from the other end of the string 14 wound around the string 14 to give an appropriate tension to the string 2, and a weight 16 is attached as necessary to further increase the tension. Also, a speed setting resistor 1 is linked to the swinging movement of the dancer arm 10 by a pinion 18 that is threadedly engaged with a gear 17 formed at one end of the boss 11.
9, and the setting device 19 was connected to the speed control device 7. The speed setting resistor 19 is made of a known magnetoresistive element, and for example, a magnet is connected to the pinion 18.
The magnet is fixed to a shaft 20 which is fixed to a shaft 20, and the resistance value is changed by the movement of the magnet when the shaft 20 is rotated.
第３図は本発明の装置の電気回路図を示す。 FIG. 3 shows an electrical circuit diagram of the device of the invention.
２１はスピンドル駆動用モータ５と連結された
交流速度発電機で、該発電機２１は速度制御装置
７の負帰還回路に接続し、その接続する回路中に
は直流端子に抵抗２２とコンデンサ２３の並列回
路を接続した整流回路２４を介入した。 Reference numeral 21 denotes an AC speed generator connected to the spindle drive motor 5. The generator 21 is connected to the negative feedback circuit of the speed control device 7, and the connected circuit includes a resistor 22 and a capacitor 23 at the DC terminal. A rectifier circuit 24 connected in parallel was intervened.
速度制御装置７は公知のもので、例えば、交流
電源２５とスピンドル駆動用モータ５との接続回
路に介入したサイリスタ通の電流制御素子と、一
端が該素子のゲート等の制御端子に接続され、他
端が速度設定抵抗器１９に接続されて該速度設定
抵抗器１９の抵抗値が糸２の張力の増加又は減少
に応じて変化したとき該素子の抵抗値が低下又は
増大するように作用させるための制御回路と、整
流器を含み、交流速度発電機２１に接続されてそ
の出力を前記制御端子に負帰還する負帰還回路等
とを具備する。 The speed control device 7 is a known one, and includes, for example, a current control element such as a thyristor inserted in the connection circuit between the AC power source 25 and the spindle drive motor 5, and one end of which is connected to a control terminal such as a gate of the element. The other end is connected to a speed setting resistor 19 so that when the resistance value of the speed setting resistor 19 changes in accordance with an increase or decrease in the tension of the thread 2, the resistance value of the element decreases or increases. and a negative feedback circuit that includes a rectifier, is connected to the AC speed generator 21, and feeds its output back to the control terminal.
次に、その作動について説明する。 Next, its operation will be explained.
スピンドル１に装着したボビン３から糸端を取
り打してダンサーローラ８及び案内ローラ９に糸
２をかけ、フイードローラを介して巻取機に糸掛
けする。次いでスピンドル駆動用モータ５及び巻
取機を駆動する。巻取機の作動による糸２の走行
に伴つてダンサーローラ８は上方に引き上げら
れ、モータ５の回動によりスピンドル１は巻糸を
解じよする方向に回転する。解じよの進行に伴つ
て巻糸量は小さくなつていき、徐々にダンサーア
ーム１０が右方に回動すると、速度設定抵抗器１
９の磁気抵抗効果素子は摩擦抵抗がないため極め
て低いトルクにて抵抗値が変化し、速度制御装置
７は該抵抗器１９の変化に応じてモータ５の回転
速度を速める。かくて糸は一定の張力の下で常に
解じよされる。ダンサーアーム１０が急激に揺動
すると、速度制御装置７はそれに応じてモータ５
の回転速度を急速に変化させようとするが、一
方、交流速度発電機２１の出力をコンデンサ２３
を介して負帰還させて糸の急激な速度を抑えるよ
うに作動するから、この場合にも糸２は一定張力
の下に安定して解じよされる。 A thread end is taken from a bobbin 3 mounted on a spindle 1, the thread 2 is threaded onto a dancer roller 8 and a guide roller 9, and threaded onto a winding machine via a feed roller. Next, the spindle drive motor 5 and the winder are driven. The dancer roller 8 is pulled upward as the thread 2 travels due to the operation of the winder, and the rotation of the motor 5 rotates the spindle 1 in a direction to unwind the thread. As the unraveling progresses, the winding amount becomes smaller, and as the dancer arm 10 gradually rotates to the right, the speed setting resistor 1
Since the magnetoresistive element 9 has no frictional resistance, its resistance value changes with extremely low torque, and the speed control device 7 increases the rotational speed of the motor 5 in accordance with the change in the resistor 19. The thread is thus constantly unraveled under constant tension. When the dancer arm 10 suddenly swings, the speed control device 7 controls the motor 5 accordingly.
On the other hand, the output of the AC speed generator 21 is connected to the capacitor 23.
Since the thread 2 is operated to suppress the rapid speed of the thread by giving negative feedback via the thread 2, the thread 2 is stably unraveled under a constant tension in this case as well.
このように本発明によるときは、スピンドル駆
動用モータに連結された交流速度発電機を速度制
御装置の負帰還回路に接続する回路に、直流端子
にコンデンサと抵抗の並列回路を接続した整流回
路を介入すると共に、ダンサーアームにその揺動
に応じて抵抗値が変化する磁気抵抗効果素子から
なる速度設定抵抗器を連結し、該抵抗器を速度制
御装置に接続したので、糸の張力が一時的に急激
に変化しても安定に一定張力の下で巻糸を解じよ
することができると共に微細な張力の変化に応動
することができるため脆弱の糸を解じよするのに
有利であり、また既存の沿度制御装置を用いるこ
とができるため安価である等の効果を有する。 As described above, according to the present invention, a rectifier circuit having a parallel circuit of a capacitor and a resistor connected to the DC terminal is connected to the circuit that connects the AC speed generator connected to the spindle drive motor to the negative feedback circuit of the speed control device. At the same time, a speed setting resistor consisting of a magnetoresistive element whose resistance value changes according to the swing of the dancer arm was connected to the dancer arm, and the resistor was connected to a speed control device, so that the tension of the thread was temporarily reduced. It is advantageous for unraveling fragile yarn because it can stably unwind the thread under a constant tension even if the tension changes rapidly, and it can also respond to minute changes in tension. Furthermore, since it is possible to use an existing drift control device, it has the advantage of being inexpensive.
第１図Ａ及びＢは本発明の一実施例の糸解じよ
装置の一部を除去した正面図及び側面図、第２図
Ａ及びＢは張力検出器のカバーを除去した正面図
及び截断平面図、第３図は本発明の一実施例の電
気回路図を示す。
１……スピンドル、２……糸、３……ボビン、
５……モータ、６……張力検出器、７……速度制
御装置、８……ダンサーローラ、９……案内ロー
ラ、１０……ダンサーアーム、１５……重鍾、１
９……速度設定抵抗器、２１……交流速度発電
機、２２……抵抗、２３……コンデンサ、２４…
…整流回路。
Figures 1A and B are a front view and a side view with a part removed of a thread untying device according to an embodiment of the present invention, and Figures 2A and B are a front view and a cutaway view with the cover of the tension detector removed. The plan view, FIG. 3, shows an electrical circuit diagram of an embodiment of the present invention. 1...Spindle, 2...Thread, 3...Bobbin,
5... Motor, 6... Tension detector, 7... Speed control device, 8... Dancer roller, 9... Guide roller, 10... Dancer arm, 15... Heavy peg, 1
9... Speed setting resistor, 21... AC speed generator, 22... Resistor, 23... Capacitor, 24...
...rectifier circuit.
Claims (1)
をダンサーロールを介して解じよし、ダンサーア
ームの揺動より検出した糸の張力に応じてスピン
ドル駆動用モータの速度を速度制御装置により制
御して糸の張力が一定になるようにしたものにお
いて、前記モータに連結された交流速度発電機を
前記速度制御装置の負帰還回路に接続する回路
に、直流端子にコンデンサと抵抗の並列回路を接
続した整流回路を介入すると共に、前記ダンサー
アームにその揺動に応じて抵抗値が変化する磁気
抵抗効果素子からなる速度設定抵抗器を連結し、
該抵抗器を速度制御装置に接続したことを特徴と
する糸解じよ装置。1. The thread wound around the bobbin attached to the spindle is unraveled via a dancer roll, and the speed of the spindle drive motor is controlled by a speed control device according to the thread tension detected from the swinging of the dancer arm. In a device in which the tension of the thread is kept constant, a parallel circuit of a capacitor and a resistor is connected to a DC terminal of a circuit that connects an AC speed generator connected to the motor to a negative feedback circuit of the speed control device. intervening a rectifying circuit, and connecting a speed setting resistor made of a magnetoresistive element whose resistance value changes according to the swinging of the dancer arm,
A thread untying device characterized in that the resistor is connected to a speed control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3256184A JPS60178163A (en) | 1984-02-24 | 1984-02-24 | Yarn unwinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3256184A JPS60178163A (en) | 1984-02-24 | 1984-02-24 | Yarn unwinding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60178163A JPS60178163A (en) | 1985-09-12 |
| JPH0372553B2 true JPH0372553B2 (en) | 1991-11-19 |
Family
ID=12362318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3256184A Granted JPS60178163A (en) | 1984-02-24 | 1984-02-24 | Yarn unwinding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60178163A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09322019A (en) * | 1996-05-30 | 1997-12-12 | Matsushita Electric Ind Co Ltd | Noise suppression circuit |
| KR20030075772A (en) * | 2002-03-20 | 2003-09-26 | 금호산업주식회사 | Constant tension control system of Fabric cord |
-
1984
- 1984-02-24 JP JP3256184A patent/JPS60178163A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60178163A (en) | 1985-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |