JPH07157933A - Special conjugate false twister and production of conjugate false twisted yarn - Google Patents

Abstract

PURPOSE:To provide a conjugate false twister capable of optionally enabling a change in the length, size and positions for forming slubs, etc., and obtain conjugate false twisted yarn, produced by the apparatus and having the three- to sevenfold wound slubs. CONSTITUTION:This conjugate false twister is provided by installing a guide position controlling mechanism in which an effective yarn guide 8 is arranged parallel to a core yarn running passage in a core yarn twisting zone so as to enable the reciprocation and the distance and speed of movement of the guide are controlled by a pulse signal, an effective yarn feed controlling mechanism for controlling the amount of the fed effective yarn by an output signal of the guide position and a spindle controlling mechanism for controlling the rotational frequency of a twisting spindle in a conjugate false twister in which the effective yarn 6 fed through the effective yarn guide 8 is pped around core yarn 1 between a core yarn feeder 2 and a heater 3. This conjugate false twisted yarn is obtained by forming a three- to sevenfold winding structure by the apparatus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a special composite false twisting device and a method for producing a composite false twisting yarn.

[0002]

2. Description of the Related Art Conventionally, a composite false twisting device has a second feeding roller or a third feeding device which feeds an effect yarn, which is also called a flower yarn or a sheath yarn, to a twisting region of a core yarn in addition to an ordinary false twist crimping device. Rollers are provided. The length, size, and formation position of the wound structure such as a slab or nep formed by winding the core yarn are fixed by the effect yarn supply guide position set at the start of processing. Therefore, the effect yarn supply guide position is made to give randomness to the winding structure by changing the distance from the core yarn during the false false twisting process or by moving it in the direction opposite to the running direction of the core yarn. Devices have also been proposed. However, in such a device, since the change is made only on the effect yarn supply side, its randomness is also limited.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to arbitrarily or irregularly change the length, size and forming position of a winding structure such as a slab or a nep during composite false twisting. An object of the present invention is to provide a compound false-twisting device that enables the compound false-twisting yarn having a triple to seven-fold winding structure having a regular or irregular length, size, and formation position.

[0004]

According to the present invention, a heater and a false twist spindle are arranged between a core yarn supplying device and a take-up roller, and an effect yarn guide is arranged between the core yarn supplying device and the heater. In a composite false twisting device in which the effect yarn supplied from the effect yarn supply roller via the effect yarn guide is wound around the core yarn, the effect yarn guide can reciprocate in parallel with the core yarn traveling path in the core yarn twisting region. And a guide position control mechanism for controlling the distance and speed of movement of the guide by pulse signals,
A special composite false twisting device equipped with a effect yarn supply control mechanism for controlling the amount of effect yarn supply and a spindle control mechanism for controlling the rotation speed of the false twisting spindle by a guide position output signal, and the addition of a core yarn in false twisting processing. When the effect yarn is supplied to the twist area and wound around the core yarn, the effect yarn is moved from the effect yarn supply roller whose rotation speed can be varied in parallel with the core yarn traveling path. A method for producing a composite false-twisted yarn, characterized in that the core yarn is twisted by a false-twisting spindle whose rotation speed can be varied and is twisted to form a triple-to-seven-fold wound structure made of effect yarn on the core yarn. is there.

The device of the present invention will be described with reference to FIG.
Is an explanatory view of the device of the present invention, in which a heater (3) is provided between a take-up roller (5) and a core yarn supplying device (2) such as a nip roller for supplying the core yarn (1) to a twisting region and a magnet tensor. ) And the false twist spindle (4) are sequentially arranged, and the effect yarn guide (8) is arranged in the core yarn twisting region between the core yarn supplying device (1) and the heater (3), and the effect yarn supplying roller ( A composite false twisting device having a mechanism in which an effect yarn (6) supplied from 7) through an effect yarn guide (8) is wound around a core yarn (1), wherein the effect yarn guide (8) is a core. It is arranged so as to be movable in the forward and reverse directions parallel to the yarn traveling direction.

The effect yarn guide (8) is a guide mount (1) which is linearly reciprocally movable by a servomotor (9).
It is attached to 0). The servo motor (9) controls the rotation angle of the motor by the number of pulses in the pulse train of the pulse signal generated by the pulse generator of the guide position control device (11) of the guide position control mechanism, and the rotation speed by the frequency of the pulse. The rotation angle corresponds to the movement distance of the guide (8), and the rotation speed corresponds to the movement speed of the guide (8). The moving speed of the guide (8) is set to a constant speed or a variable speed from a speed lower than the traveling speed of the core yarn to a speed higher than the traveling speed of the core yarn. Therefore, the effect yarn can have extremely various variations in the overfeed state at the time of supply and the winding start point, and the effect yarn (6) is wound around the core yarn by the moving distance and speed of the guide (8). The state can be changed.

The effect yarn supply roller (7) and the false twist spindle (4) are driven by independent drive motors (12) and (13) such as servo motors so that the number of rotations can be changed. The effect yarn supply roller (7) controls the number of revolutions of the drive motor (12) by the guide position control device (11) by the guide position output signal generated at least at the start point and the end point of the movement of the guide (8), The supply amount of the effect yarn is controlled. Therefore, the effect yarn can change the winding state around the core yarn due to the fluctuation of the overfeed state during the supply. The false twist spindle (4) controls the rotational speed of the false twist spindle (4) by controlling the rotational speed of its drive motor (13) according to the guide position output signal generated by the guide position control device (11). . Therefore, the core yarn also changes the winding state of the effect yarn due to the change in the twisting state of the false twist spindle.

The control of the effect yarn guide position movement, the effect yarn supply amount, and the false twist spindle rotation in the apparatus of the present invention is performed by the guide position control device, and the guide position output is set in advance so as to be generated in response to the effect yarn guide movement. The signal is received as a shift signal of each drive motor, and the effect yarn supply amount and the false twist spindle rotation are controlled by a command set according to the shift signal.

[0009]

EXAMPLE An example of the operation of the device of the present invention is as follows. The running speed of the core yarn is 40 m / min, the false twist spindle rotation speed is the false twist number, and the effect yarn guide is located from the upstream position to the downstream position in the twisting region. Up to 1250 T / M, while moving from the downstream position to the upstream position is 3000 T / M, and the effect yarn supply amount is 125% while the effect yarn guide moves from the upstream position to the downstream position in the twisting area. %, While moving from the downstream position to the upstream position, the overfeed rate is 25%,
With the effect yarn guide distance to the core yarn being 200 mm, the effect yarn guide is moved at a speed of 30 m / min in the same direction as the core yarn running direction from the upstream position of the twisting area of the core yarn having a length of 500 mm,
It was programmed to shift the speed to 60 m / min at the intermediate position and move it from the downstream position to the original upstream position at 8 m / min. 75d / polyester fiber as core yarn
36f, triacetate fiber 55d / 15 as effect yarn
When composite false twisting was performed under the above program conditions using f, a composite false twisted yarn having a triple, five-fold, and seven-fold winding structure mixed was obtained.

[0010]

According to the use of the device of the present invention, the distance and speed of movement of the effect yarn guide, the supply amount of the effect yarn, and the rotation speed of the false twist spindle can be set in advance in any desired combination with the guide position control mechanism. If programmed so as to generate as a pulse signal or a guide position output signal, the effect yarn will run parallel to the core yarn running path in the core yarn twisting region from the effect yarn supply roller with variable rotation speed. It is supplied through an effect yarn guide that is movably arranged at a speed before and after, and the core yarn is twisted by a false twist spindle of which the number of rotations is variable, and the effect yarn is formed on the core yarn in three to seven layers. An extremely large number of combinations, such as the formation of a turn structure, are possible, and various slabs and neps with regularity to extremely random slabs and neps can be produced in one device or in one composite false twisted yarn. Various winding structures It can form.

[Brief description of drawings]

FIG. 1 is an explanatory view of a special composite false twisting device of the present invention.

[Explanation of symbols]

 1 core yarn 2 core yarn supplying device 3 heater 4 false twisting spindle 5 take-off roller 6 effect yarn 7 effect yarn supplying roller 8 effect yarn supplying guide 9 servo motor 10 guide fixture 11 guide position control device 12 effect yarn supplying roller drive motor 13 False twist spindle drive motor

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Araki 1103 Yanagibashi-cho, Mitsuke City, Niigata Prefecture 1 Kondo Shoten Co., Ltd. (72) Inventor Shigenobu Hara 1103 1 Yanagibashi-cho, Mitsuke City, Niigata Prefecture Kondo Shoten Co., Ltd. ( 72) Inventor Hidemasa Kondo 1103 Yanagibashi-cho, Mitsuke City, Niigata Prefecture 1 Kondo Shoten Co., Ltd.

Claims (3)

[Claims] 1. A heater and a false twist spindle are arranged between a core yarn supplying device and a take-up roller, and a effect yarn guide is arranged between the core yarn supplying device and the heater. In the composite false twisting device in which the effect yarn supplied via the core yarn is wound around the core yarn, the effect yarn guide is arranged so as to be able to reciprocate in parallel with the core yarn traveling path in the core yarn twisting region, and Specially equipped with a guide position control mechanism that controls the distance and speed with pulse signals, a effect yarn supply control mechanism that controls the amount of effect yarn supply by the guide position output signal, and a spindle control mechanism that controls the rotation speed of the false twist spindle. Compound false twisting device. 2. The special compound false twisting device according to claim 1, wherein the effect yarn guide is attached to a linearly movable portion by a servomotor controlled by a pulse signal of a guide position control mechanism. 3. When the effect yarn is supplied to the twisting area of the core yarn in the false twisting process and wound around the core yarn, the effect yarn is fed from the effect yarn supply roller whose rotation speed is variable. It is supplied through an effect yarn guide that moves parallel to the traveling path, and the core yarn is twisted by a false twisting spindle whose rotation speed can be varied to form a triple to seven-fold winding structure of the effect yarn on the core yarn. A method for producing a composite false-twisted yarn, which comprises: