JPS6360134B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a residual yarn processing device for a spindle in a spinning machine such as a spinning machine or a yarn twisting machine.

Prior Art In spinning machines, yarn twisting machines, etc., it is required that the yarn connected to the roller part be connected to a spindle that passes through a ring rail traveler, especially in automatic pipe changing operations. This is because when a full bobbin is removed and an empty bobbin is installed in its place on the spindle and operation is started, thread can be automatically wound around the empty bobbin.

For this reason, conventionally, as shown in FIGS. 1 and 2, after the tube is full, the ring rail 1 is suddenly lowered, and the thread is wound several times around the end winding part 2 at the bottom of the spindle 15. The tail thread winding portion 2 has a rough surface with knurling or the like so that the winding position does not easily change. When pulling out a full bobbin, between the full bobbin and the tail thread winding part 2, in order to cut the thread end a that is connected to the tail thread winding part 2 side particularly short, a claw is provided directly above the tail thread winding part 2. A cutter section 10 having a circular cutter 4 held by a circular cutter 3 is provided, and the thread is pressed against the cutter 4 and cut by the thread tension when pulling out a full bobbin.
After that, when an empty bobbin is installed and operation resumes,
The thread connected between the tail winding part 2 and the traveler 5 forms a crossover thread b between the tail winding part and the bobbin winding part 6 as the ring rail 1 rises.

By the way, if such an operation is repeated every time the pipe is full, the amount of remaining thread in the tail thread winding section 2 increases,
The yarn fluctuation regulating effect on the rough surface is reduced, and many other yarn ends created by cutting yarn end a and crossover yarn b are thrown around, and the tail yarn also tends to be released from the rough surface. As it becomes stronger, the yarn end a becomes longer. For this reason, the second
When the operation is resumed as shown in the figure, spindle 1
5 rotates and the ring rail 1 rises, the yarn end a gets entangled with the newly formed crossover yarn b, causing yarn breakage.

For this reason, various devices have been proposed for processing the remaining threads. A typical example includes a main body that has a cutting blade that cuts the crossover thread and a brush that removes the remaining thread from the end winding section.By running the main body along the spindle row, the cutting blade can There was a device that cut each crossover yarn and then removed the remaining yarn with a subsequent brush. Although this device was able to achieve the desired effect to some extent, it was not completely satisfactory.

That is, according to the operating experience of the spinning machine, before cutting the crossover yarn, the tail yarn is of course wound around a predetermined area of the tail yarn winding part 2 as shown in FIG. Due to the interaction between the wire surface of the brush and the knurling surface of the tail winding section, the residual thread 2' of the tail winding section 2 undergoes a subtle change in the direction of the force applied to it, causing the rough surface of the tail winding section 2 to change. Nevertheless, it has been found that the position of the spindle 15 in the axial direction may vary as shown in FIGS. 3B and 3C. The remaining yarn 2' located at the position shown in FIG. If the residual yarn 2' moves to a position at or near a sharp corner formed in the section, it is difficult to access the position with a brush, and therefore it cannot be processed. Moreover, the remaining yarn had a stronger tendency to move to the position shown in FIG. 3C than to the position shown in FIG. 3B.

OBJECT OF THE INVENTION Accordingly, an object of the present invention is to provide a method to reliably dispose of residual yarn even if it exists at or near the corner formed at the connection between the cutter part and the end winding part. It is an object of the present invention to provide a spindle residual yarn processing device that can be used.

Composition of the Invention For this purpose, the spindle residual yarn processing device of the present invention has a main body that can run along a spindle row, and has cutter sections arranged above or below cutter sections in order from the upstream side with respect to the running direction of the main body. A first cutting member that extends to a position where it can cut the crossover thread from the tail spool, a brush that contacts at least the spool, and a corner between the tail spool and the large-diameter cutter portion or a vicinity thereof. and a second cutting member having elasticity and extending to a position where the yarn from the end winding portion can be rubbed and cut. Therefore, the crossing yarn is cut by the first cutting member, the remaining yarn at the normal position or below is strongly rubbed off by the brush, and the remaining yarn is removed at the corner by the second cutting member. Even if it exists, you can remove it.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, in which like reference numerals indicate like or corresponding parts.

FIG. 4 is a side view showing the spindle structure of a ring spinning machine embodying the present invention. Figures 1 and 2
As explained in connection with the figure, the ring rail 1 suddenly descends after the tube is full, and the thread is wound several times around the tail winding part 2 at the lower part of the spindle 15 to form a tail thread. Then, the yarn between the full bobbin and the end winding part 2 is pressed against the cutter 4 and cut by the thread tension when pulling out the full bobbin. After that, when an empty bobbin is inserted and the operation is restarted, the thread connected between the tail bobbin section 2 and the traveler 5 is moved between the tail bobbin section 2 and the pipe bobbin section 6 as the ring rail rises. Form a thread. The situation at this time is as shown in Fig. 2, and from the tail thread remaining thread 2' in the tail thread winding section 2, the thread end a created when the full bobbin was pulled out before inserting the empty bobbin, and the thread end a formed when the empty bobbin was inserted. The crossover thread b, which was created when the ring rail rose after wearing, is extending.

In FIGS. 4 to 6, according to the present invention, in order to reliably dispose of the residual yarn, the main body 9 is provided with:
The first cutting member 17, the brush 8 and the second cutting member 18 are arranged in a special relationship.

That is, the main body 9 has a U-shaped structure that is placed on the flange portion 13 of the mounting rail 11 of the known intermediate peg 12, and the mounting rail 11, that is, the spindle 1
5, and the main body can be easily moved by holding the handle 14 provided on the top surface of the main body. Of course, the main body 9 may be mounted not on the mounting rail 11 but on the bobbin rail 16 or other suitable member as long as it can operate to produce the effects described below. Incidentally, the intermediate peg 12 is of a known type and is used to temporarily insert a full bobbin or an empty bobbin into the intermediate peg 12 in one of the operating steps of the automatic tube changer.

This body 9 runs in the direction of arrow 19 in FIG. In the running direction, the brush 8 is connected to the spindle 1.
Although the direction of rotation of the hemlock part 2 at the position where it contacts the hemlock part 2 of No. 5 is reversed, it is not necessarily necessary. In order from the upstream side regarding the running direction,
The first cutting member 17, brush 8, and second cutting member 18 described above are provided.

The first cutting member 17 is a cross wire b shown in FIG.
The tip is for cutting the crossover thread b.
Extends to a position where it can be cut. In the illustrated embodiment, the first cutting member 17 is constituted by a coil spring like the second cutting member 18, and the arm portion 1 at the upper end thereof
Although the arm 7a is shown as being able to come into contact with the end thread winding part 2, the arm part 17a is for cutting the crossover thread b, so the arm part 17a may extend above the claw part 3. It may be made of a rigid, inelastic material.

The brush 8 is a wire brush and is attached to the top surface of the main body 9 by appropriate means, and its brush surface contacts at least the entire surface of the hemlock portion 2.
The brush 8 is rotatably held by a known mechanism consisting of a pin and an elongated hole, and is constantly biased in the direction of an arrow 21 by a leaf spring 20 to ensure contact between the brush surface and the tail winding portion 2. And it is sufficient.

The second cutting member 18 extends to the corner 7 between the tail spool 2 and the large diameter cutter 10, as best shown in FIG. Although a coil spring is used in the illustrated embodiment, a leaf spring or the like may also be used. To support the second cutting member 18, the body 9
A bracket 22 is attached to the spindle side of the bracket 22, and a hollow cylinder 23 with the second cutting member 18 wound thereon is placed on the bracket 22 and fixed to the bracket 22 with a washer 24 and a bolt 25. Although not shown, the second cutting member 18 is fixed at its lower end to a bracket 22 or a hollow cylinder 23 to prevent it from rotating. Furthermore, in order to adjust the position of the tip end of the arm portion 18a of the second cutting member 18 with respect to the tail end winding portion 2, the inclination angle of the arm portion 18a with respect to the tail end winding portion 2 may be configured to be variable.
Although not shown, this can be easily done by providing several engaging portions on the washer 24 and selecting the engaging portion of the arm portion 18a to be engaged depending on the desired inclination angle. .

Next, residual yarn processing using the residual yarn processing device of the present invention will be explained.

As shown in Figure 2, place the empty bobbin on spindle 1.
5, as the spindle rotates and the ring rail 1 rises, a crossover thread b is formed between the tail thread winding section 2 and the pipe thread winding section 6. Then, at an appropriate point after the ring rail 1 has further risen and reached a position where there is no problem with the running of the remaining yarn processing device, for example at the state shown in FIG. The device is placed on the flange portion 13 of the mounting rail 11 and moved in the direction of arrow 19 shown in FIG.

First, the tip of the first cutting member 17 is connected to the crossover thread b.
(FIG. 2), this is cut, and then the wire brush 8 scrapes off the remaining yarn from the cut end yarn. As mentioned above, due to the subtle movement of the wire, which is thought to be due to the interaction between the wire surface and the peripheral surface of the knurled tail thread winding part 2, the remaining thread 2'
may move to the positions shown in Figure 3 B and C. If the brush moves to the position shown in FIG.
Once it reaches the position shown in Figure C, it is difficult to remove it with the brush 8. The trailing end of the second cutting member 18 scrapes and cuts such a remaining tail thread.

In the present invention, a soft brush device is provided downstream of the second cutting member 18 in the running direction of the residual yarn processing device, and the soft brush device contacts the lower part of the bobbin and the end bobbin winding portion 2, so that the second cutting member 18 can cut the thread by rubbing. The remaining threads may be removed more reliably.

Effects of the Invention As described above, according to the present invention, the first cutting member 17 and the brush 8 are arranged in order from the upstream side in the running direction.
and a second cutting member 18 are disposed on the main body 9, and in particular, the second cutting member extends to or near the corner 7 between the tail spool portion 2 and the large-diameter cutter portion 10, and the second cutting member 18 It has elasticity and extends to a position where it can be cut by rubbing the thread from the part.
It is possible to reliably dispose of the remaining tail threads that have moved to the corner portion 7, and the above-mentioned troubles due to the presence of the remaining threads can be completely prevented.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional side view showing how the migratory line is cut during doffing, Fig. 2 is a partially sectional side view showing how the migratory line is formed when restarting operation, and Fig. 3 A to C are FIG. 4 is an enlarged side view of the vicinity of the tail end winding section to explain the movement of the remaining thread after brushing, FIG. 4 is a side view of the spindle row with the remaining thread processing device of the present invention installed, and FIG. FIG. 6 is an enlarged sectional view taken along the line ``-'' in FIG. 5, excluding the brush. In the figure, 2 is a tail winding part, 7 is a corner part, 8 is a brush,
9 is a main body, 10 is a cutter portion, 15 is a spindle, 17 is a first cutting member, and 18 is a second cutting member.

Claims (1)

[Claims] 1. A residual yarn processing device for a spindle in a spinning machine including a row of spindles, each spindle having a tail end winding section at the lower part thereof and a cutter section having a larger diameter than the end winding section, which can run along the spindle row. a first cutting member arranged in order from the upstream side in the running direction of the main body and extending to a position above or below the cutter part to cut the crossover thread from the tail winding part; The brush that contacts the tail end winding portion extends to or near a corner between the end winding portion and the large diameter cutter portion, and extends to a position where the thread from the tail end winding portion can be rubbed and cut. and a second cutting member having elasticity.