JPS616335A - Apparatus for ultra-high speed manufacture of fancy twisted yarn - Google Patents

Abstract

PURPOSE:To enable high-speed manufacture of arbitrary fancy twisted yarn, by shifting the comb regulating the joint position of a wadding and a float yarn by an encoder, a differential operator, a pulse motor, etc. CONSTITUTION:The float yarn 2 is joined to the wadding 1 just below the comb 5, and both yarns are passed through the false twisting spindle 6. The fixing yarn 3 reeled out of the bobbin rotating at the same speed as the hollow spindle 7 is attached to the above yarns, and passed through the second false twisting spindle 8 to obtain a fancy twisted yarn. In the above apparatus, the comb 5 is shifted by moving the supporting arm 27 of the comb 5 with the pulse motor 25, the gear 26 and the circular rack 29. The driving of the pulse motor 25 is carried out by using a rotary encoder 21 rotating synchronously with the twisting frame, counting the pulses outputted from the rotary encoder with the differential operator 22, and outputting a command based on the design of the fancy yarn synchronously with the counted signals.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention enables the production of other types of decorative yarns consisting of a core yarn, floating yarn, and presser yarn, such as 7-piece yarn, slub yarn, ring yarn, etc. The reciprocating movement necessary for forming the designed yarn and its movement speed control are carried out by selecting one of the many types of cams that correspond to the design of the designed yarn and installing it on the rotating part of the main body of the twisting machine. There is a limit to the transmission speed of the reciprocating movement to the comb, and if this limit is ignored, it will cause irreparable disturbances in the shaping of the design yarn. Therefore, when using fine-count core yarn, etc., production within the above limit is prohibited. The use of a cam, which was economically disadvantageous due to the small quantity, was abolished, and the cam, which had to be replaced every time the design yarn to be manufactured was changed, was abolished. A rotary encoder that sends out a number of pulse signals proportional to the number of rotations, and a pulse motor that counts the pulse signals from the encoder based on the design of each of the various decorative threads. a differential command device that sends a rotation command signal to the differential command device; a pulse motor that rotates in positive and negative directions according to the rotation command signal of the differential command device; By equipping it with a conversion device that adjusts the size and pitch of the floating yarn wrapped around the core yarn, it achieves ultra-high-speed production with 20 to 3 times more design production than conventional methods. It made it possible.

An embodiment of the present invention will be described.

In the figure, (1) is a core yarn, (2) is a floating yarn, and (3) is a presser yarn.

The core yarn (1) is connected to the tension roller (4) and the comb (5)
) through the false twisting spindle (6), the hollow spindle (7), the second false twisting spindle (8), and the designed yarn delivery roller (9), and the rotational speed of the roller (9). Pull it out, hang it on the adjustment rod (10), and place it on the traversing drum (
11) and then wound onto a core tube (12).

The core yarn (1) is transferred from the tension roller 4 to the second false twist spindle (8) according to the speed of the design yarn delivery roller (9).
Driving at the opening of the road. The feed roller (9) described in Iid is slower than the floating yarn roller (13) described later, but its rotational speed is determined by the speed of the yarn twisting machine body, and it is free to rotate at an extremely high speed.

The floating yarn (2) is forced to pay out at the unique speed of the floating yarn rotary 13), supercharging the core yarn (1) and creating an id (
14), passes through the other side of the comb metal (5), meets the core thread (1) with the lower edge of the comb metal (5) as a meeting point x, and winds up depending on the degree of supercharging.

The presser thread (3) is unwound from a bobbin that rotates at the same speed as the hollow spindle (7), and the core thread (1) passes through the spindle (7).
) and wrap it around the float (2).

The present invention provides the above-described designed yarn twisting device, including a rotary encoder (21) that rotates according to the operating speed of the yarn twisting machine main body and sends out a pulse signal proportional to the rotation speed of the main body;
The pulse signals from the encoder (21) are counted based on the respective designs of cut yarns, ring yarns, and other decorative yarns, and the pulse signals are sent to the pulse motor (25) in forward and reverse directions at time intervals according to the design of each individual decorative yarn. A differential command device (22) is provided to send out a rotation command signal for rotation speed conversion. Although not shown in the drawing, the differential command device (22) includes:
It is equipped with push buttons or numeric keys to select and press numbers that correspond to the designs of many types of decorative threads, and since there are multiple designs of the same type of decorative threads, even in this case, each design is Enable to output rotation command signal. (23) is a power supply device for the sub-controller (24), and the sub-controller (24) is a differential command device (22).
), the pulse motor (25) is rotated by the power of the power supply device (23). Pulse motor (
25) causes a small angle rotation in the positive or negative direction at the commanded speed according to the command signal from the differential command device (22), and because it has excellent signal response, the rotation direction and speed can be changed freely. Therefore, even if the speed of the main body of the yarn twisting machine is increased to about 20 times the current speed, the above-mentioned responsiveness will not be disturbed.

The pulse motor (25) controls the movement of the comb bar (5) that reciprocates in the direction of the running force of the core yarn. In this embodiment, the comb bar (5) is attached and the shaft (28 ) supported by a lever (27) as an example of a converting device, a circular arc-shaped array of racks (29) at the rear end of the lever (27)
) is meshed with the pinion (26) attached to the output shaft of the pulse motor (25).

The conversion device exemplified by the lever (27) above controls the amount of movement of the core yarn (1) of the comb (5) in the running direction or the counter-running direction, the moving speed, etc. The comb wire (5) can control the size, pitch, etc. of the winding of the floating thread (2) around the core thread (1) by moving the lower edge, which is the meeting point of the core thread (1) and the floating thread (2). For example, in order to create an overlapping winding end a of floating yarn (2) around core yarn (1) as shown in Figure 3, comb metal (5) can be converted to core yarn (1). After that, the moving speed of S-kai (5) in the same direction is increased, and the meeting point with floating thread (2) shown enlarged in Fig. 2
This is caused by controlling the movement so that the object remains relatively stationary. In addition, in order to form a slab-like winding C of the floating yarn (2) as shown in Figure 4, the comb (5) is moved around the core yarn (1) at a slightly slower speed than the overlapping winding end a in Figure 3. Move in the direction of travel. After applying the overlapping winding a shown in Fig. 3 or the slab-like winding end C shown in Fig. 4, the meeting point is used to apply the normal twisted yarn winding pitch or the ring-like winding end with a sparse pitch. By setting × to the amount of supercharging of the float (2), the movement length of the core thread (1) and the supply length of the float (2) will be the same, or the supply length of the float (2) will be slightly This is done by controlling the meeting point X to move back in the direction opposite to the running direction of the core yarn (1) at an increasing speed.

Figures 5 to 8 show examples of products based on the designs of other decorative yarns shown in Figure 3.4. This makes it possible to create a wide variety of designs. However, these various design threads are
Based on the design, this is carried out by simply converting the rotation command signal of the pulse motor (25) in the positive and negative directions of the differential command device (22).

To explain the specific operation of the device of the present invention shown in FIG.
The core yarn (1) is transferred from the tension roller (4) to the negative side of the comb (5) to the false twist spindle at a speed that is 20 to 3 times the current normal operation depending on the rotation speed of the design yarn delivery roller (9). (7) → is drawn out without pause through the second false-twisting spindle (8).

The core yarn (2) rotates at a speed based on the design of the design yarn (
2) is pulled out by a floating roller (13) that supercharges the comb (5), passes from the guide (14) to the other side of the comb (5), and
) merges with the meeting point X of the lower edge. Core yarn (1) and floating yarn (2
) produces the above-mentioned entanglement due to the twist applied at the upper part of the false-twisting spindle (6), and the second false-twisting spindle (
8), the yarn is twisted to the r-side outlet of the false twisting spindle (6), and in this twisted state, it passes through the hollow spindle (7) without untwisting the twisted yarn, and the presser yarn (3) passes through the hollow spindle (7) at its entrance. The twist is fixed by winding.

The second false twisting spindle (8) and the yarn feeding roller (
The invention twist returns between 9), but the core yarn (1) of the floating yarn (2)
Since the winding around the design thread is already fixed by the presser thread (3), the design thread is wound onto the core tube (12) without losing its thread form.

As detailed above, the device of the present invention includes a rotary enhoog (21) that sends out a number of pulse signals proportional to the operating speed of the winding machine body, and a pulse signal sent out from the enchork (21). A differential command device (22) converts into different pulse signals depending on the design of various kinds of design threads and commands the rotation of the pulse motor (25), and a lever (27) rotates in positive and negative directions based on the command signal. ) etc., the high performance of the motor (25) allows the motor (25) to perform reciprocating operations at extremely high speeds and frequently, and in accordance with command signals while freely converting the speed, which was previously impossible. The comb yarn is produced at high speed, and the production efficiency is excellent even when using fine-count core yarn or floating yarn.
This ends with making the production unit price calculated from (equipment cost: production volume) advantageous.

[Brief explanation of drawings]

1.2 shows one embodiment of the present invention, FIG. 1 is a front view showing the arrangement, and FIG. 2 is an enlarged side view of a part of FIG. 1. 3 to 8 are front views showing several examples of products manufactured at high speed by the apparatus of the present invention.

Claims (1)

[Claims] Consisting of a core yarn, a floating yarn forced to be fed by a floating yarn roller, and a presser yarn, the core yarn and floating yarn are brought together at the lower edge of the comb metal, and the hollow spindle and yarn feeding roller are sequentially moved. In the design twisting device, the floating yarn is passed through the core yarn and wound around the core yarn at the lower edge of the comb, the pressing yarn is supplied from around the hollow spindle, and the decorative yarn is pulled out by the yarn sending roller at a speed lower than the floating yarn roller. , a rotary encoder that rotates according to the operating speed of the twisting machine body and sends out a number of pulse signals proportional to the number of rotations of the main body, and a rotary encoder that counts the pulse signals from the encoder based on the respective designs of the various designed yarns. A differential command device that sends a rotation command signal to a pulse motor at time intervals according to the design of each design yarn, a pulse motor that rotates in positive and negative directions according to the rotation command signal of the differential command device, and the pulse motor and a conversion device that displaces the comb bar in the running direction of the yarn by rotation of the comb to adjust the size, pitch, etc. of winding and tangling of the floating yarn around the core yarn. Ultra-high speed design yarn twisting device that produces design yarn set by a command device