JPH05287622A - Double twister - Google Patents

Abstract

PURPOSE:To provide a double twister not causing the generation of a yarn wound up and left on a rotation disk in the time of the breakage of the yarn. CONSTITUTION:In the double twister equipped with a stopping disk 9 pivotally supported on a rotation disk 7, capable of being stopped by the attraction of a magnet 10 and used for loading fiber-feeding packages P1, P2 and with a case 11 placed on the outer circumferences of the rotation disk 7 and the stopping disk 9 and having a magnet 12 therein, a projection 41 is disposed on the inner surface 11a of the case 11, whereby a yarn Y3 liable to be wound up and left on the rotation disk 7 is beaten with the projection 11 with the rotation of the rotation disk 7, converted into flying wastes and scattered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mounts a yarn feeding package on a stationary plate which is rotatably supported above a rotary disc and is stationary by magnet attraction, and has magnets built in on the outer circumferences of the rotary disc and the stationary plate. The present invention relates to a double twisting machine including a case.

[0002]

2. Description of the Related Art First, the equipment arrangement of one spindle of a double twisting machine will be described with reference to FIG. In the double twisting machine, a winding device 52 is arranged above a spindle device 51, the two weights are arranged back to back, and 80 to 304 weights are arranged in parallel as a whole. The spindle device 51 includes a rotating disk (not shown) that rotates at a high speed by the drive belt 55, a stationary platen (not shown) on which the yarn feeding packages P1 and P2 are placed, a balloon guide 58, and the like. The yarns Y1 and Y2 unwound from the upper and lower two-stage yarn feeding packages P1 and P2 enter the yarn feeding support base 57 to be combined, and are twisted twice by a rotating disk rotating at a high speed to form an upper balloon guide 58.
Leading to. Next, the winding device 52 includes guide rollers 59 and 60 for adjusting the winding tension, a feed roller 61, a traverse guide 62 for traversing, a winding drum 63 that is driven to rotate, and a winding package 64. It consists of a cradle 65 for supporting the. The combined and twisted yarn Y3 is made to have a predetermined winding tension by the guide rollers 59 and 60, traversed by the traverse guide 62 via the feed roller 61, and wound on the winding drum 63 while being wound.
Becomes The cradle 65 has a substantially L-shaped cradle arm 66, a U-shaped bobbin holder 67 is attached to one end of the cradle arm 66, and the other end is pivotably supported by a frame (not shown). Further, a drop wire 53 is arranged between the spindle device 51 and the winding device 52. When the yarn Y3 is cut, the drop wire 53 turns in the direction a, and the bar 53a at the tip of the yarn Y1
Y2 is pressed to stop the unwinding from the yarn supply packages P1 and P2. This is because, even if the yarn Y3 is broken, the rotating disk (not shown) is still rotating at high speed, and the yarns Y1 and Y2 continue to be released by centrifugal force.

Further, details of the spindle device 51 are shown in FIG.
Will be explained. In FIG. 4, the support tube 1 is a frame 2
A spindle 4 is rotatably supported on the support tube 1 via a bearing 3. Further, the spindle 4 has a warb 5, a yarn storage board 6, and a rotating disk 7.
Are fixed together. Belt 16 on this warb 5
Are in contact with each other, and the rotating disk 7 and the like rotate at high speed.
Further, a stationary platen 9 is supported on the spindle 4 via bearings 8, and the magnet 1 fixed to the stationary platen 9 is
0 and the attraction action of the magnet 12 fixed to the magnet case 11 keeps the stationary board 9 stationary. Next, the yarn feeding cover 13 is fixed to the stationary platen 9, and the outer balloon limiting cylinder 14 is fixed to the frame 2. A tension device 15 is erected on the stationary board 9. That is, the lower tubular body 21 is fitted into the central tubular portion 9 a of the stationary platen 9, and the tension device 15 is attached to the lower tubular body 21.
Has been inserted. Put on this tension device 15,
The yarn feeding support base 57 placed on the stationary platen 9 is located.
The yarn feeding support base 57 is a first holding device for holding the yarn feeding package P1.
A second tubular body 57a and a second tubular body 57a which is fitted into the first tubular body 57a and has a fryer 57b at the lower end to hold the yarn feeding package P2.
It is composed of a tubular body 57c and a thread guide 57d. Reference numeral 58 is a balloon guide.

By the way, when threading at the beginning of operation,
Although it is necessary to pass the thread through the tension device 15, the threading through the tension device 15 can be automated. When an air flow is jetted from the compressed air jet nozzle 20,
The air flow passes through the air passage 19 and flows out of the yarn storage board 6 through the yarn outlet hole 18. Due to the air flow, the yarn passage 17 has a negative pressure, and an air flow is also generated in the yarn passage 17. The air flow acts on the inside of the room 38 to reduce the pressure inside the room 38. Due to the reduced pressure state, the lower receiving member 26 slides downward against the force of the compression spring 36. Capsule tensor 32 by the sliding
Becomes free and is attracted by the magnet 33 to move laterally to form a thread passage for threading. Then, the yarn end that has exited to the guide 57d is carried by the air flow to the yarn outlet hole 18, and is threaded through between the yarn supply cover 13, the magnet case 11 and the outer balloon limiting cylinder 14.

In the above-mentioned conventional double twisting machine, when the yarn Y3 is cut, the bar 53a of the drop wire is swung to the position shown by the chain double-dashed line in the figure to stop the release of the yarns Y1 and Y2. However, the yarn Y3 ahead of the yarn lead-out hole 18 remains to some extent. The remaining yarn Y3 is normally swung by centrifugal force and scattered as fly cotton.

[0006]

However, with some types of yarn, there is a case where the yarn remains as a residual yarn in a state of being wound around the yarn storage board 6 instead of being a cotton wool. In this case, when the threading is performed again, there is a problem that the wound residual thread is hooked and taken to the winding package, which causes a defective package. Further, there is a possibility that the threading of the tension device 15 may fail due to the wound residual thread.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a double twisting machine in which no residual yarn is wound around the rotating disk when the yarn is broken. Is about to provide.

[0008]

A double twisting machine of the present invention which achieves the above object, mounts a yarn feeding package on a stationary plate which is axially supported above a rotating disk and which is stationary by magnet attraction. A double twisting machine, which is provided on the outer periphery of a stationary plate and has a case containing a magnet, wherein a convex portion is provided on the inner surface of the case.

[0009]

The thread wound around the rotating disk and trying to remain is hit by the convex portion as the rotating disk rotates and scatters as cotton wool.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of the double twisting machine of the present invention, and FIG. 2 is a sectional view taken along the line AA of FIG. 4 differs from that of FIG. 4 described in the related art in that a convex portion is provided on the inner circumference of the magnet case 11, and other portions are the same as those described in FIG.

In FIG. 1, the inner surface 11 a of the magnet case 11 is located around the rotary disk 7. In the case of a casting case, the convex portion 41 is integrally provided on the inner surface 11a. Although the upper part of the convex portion 41 is low and the lower part is high, the convex portion 41 approaches the outer periphery of the yarn storage board 6, but the height of the convex portion 41 is such that it does not hit the yarn Y3 of the normal locus. As clearly shown in FIG. 2, the convex portion 41 is provided on a very small portion of the inner circumference 11a. The shape of the convex portion 41 is not limited to the mountain shape shown in the figure, and may be a plate embedded, but the width of the convex portion 41 is formed smaller than the opening width of the yarn lead-out hole 18.

The operation of the convex portion 41 will be described below. In FIG. 1, the yarn Y3 having the normal locus of the two-dot chain line does not hit the convex portion 41. Then, when the yarn Y3 is cut, the bar 53a of the drop wire pivots to the position shown in the drawing, and the yarns Y1 and Y2
Stop releasing any more. At this time, the yarn end Y4 remains, but the yarn end Y4 bulges outward as shown in the figure and the convex portion 41
Will be hit by. Rotating disk 7 is 9000 rp
It rotates at a high speed of about m, and the yarn end Y4 becomes a cotton wool and scatters before being wound around the yarn storage board 6. Therefore, the yarn end Y
4 will not be wound around the yarn storage board 6 and remain.

Next, at the time of threading, the thread is ejected from the thread outlet hole 18 along with the air flow. As shown in FIG.
The convex portion 41 of a very small portion of does not obstruct the air flow, and threading is normally performed. Therefore, the yarn end Y4 is not wound around the yarn storage board 6 and remains, and troubles due to the wound residual yarn are prevented.

Although the above-mentioned double twisting machine has been described as a type in which the compounding yarn and the twisting yarn are simultaneously performed, the double twisting machine of the type in which one yarn feeding package is mounted only for the normal twisting yarn is described. Of course, the present invention can be applied.

[0015]

The double twisting machine of the present invention has a case in which a convex portion is provided on the inner surface of the case, and the yarn which is wound around the rotating disk and is about to remain is scattered as a cotton wool by the convex portion. It is possible to prevent generation of a defective package in which the residual yarn is wound around the rotary disc when the yarn is broken, and a defective package in which the residual yarn is wound during the yarn splicing and a failure in threading.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a double twisting machine of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view showing the entire double twisting machine.

FIG. 4 is a cross-sectional view of a conventional double twisting machine.

[Explanation of symbols]

 7 Rotating Disc 9 Stationary Plate 10 Magnet 11 Magnet Case 12 Magnet 41 Projection

Claims (1)

[Claims] 1. A yarn feeding package is mounted on a stationary plate which is rotatably supported above a rotating disc and is stationary by magnet attraction, and a case which is located on the outer periphery of the rotating disc and the stationary plate and contains a magnet is provided. A double twisting machine, wherein a convex portion is provided on the inner surface of the case.