JPS5815425B2 - Shijiyou Maki Torikini Okel Traverse Souch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a traverse device that traverses yarns running in the width direction of the endless yarns by means of yarn guides provided on two sets of endless yarns running in opposite directions.

Conventional yarn traverse devices include a cam traverse device in which a follower with a traverse guide attached to a scroll cam is fitted to perform traversing, or a cam traverse device in which two thread guiding grooves in opposite directions are installed on the outer periphery of a cylinder. Although there are split drum devices and other devices that directly engage and traverse the web, these devices are not suitable for the high-speed operation required to streamline the winding process. There are some difficulties.

In other words, with a cam traverse device, as the winding speed increases, the impact and noise are severe and the wear rate of the cam increases, so there is a limit to how high the speed can be increased, and with a split drum device, it is necessary to ensure that the yarn is engaged in the yarn guiding groove. Therefore, as the speed increases, it is necessary to increase the thread tension, which causes fuzzing, cutting, etc. of the thread, and naturally there is a limit to this.

For this reason, a belt traverse device has been proposed in which traverse guides attached to an endless strip are run at high speed in mutually opposite directions, and threads are alternately engaged with the guides to reciprocate over a predetermined section.

Although this device is effective in increasing the winding speed, as the speed increases, the delivery of the yarn between the traverse guides inevitably becomes inaccurate.

The purpose of the present invention is to solve this problem by holding the yarn at the traverse folding part, removing the yarn from the yarn guide running in one direction without damaging it, and reliably transferring it to the yarn guide running in the opposite direction. The traverse is performed at high speed to prevent damage to the yarn quality as much as possible to obtain a good winding package.When transferring the yarn between the yarn guides at both ends of the traverse, the yarn is removed from the yarn guide on the light wave side. A thread removing cam that rotates in the running direction of the thread guide reliably removes the thread without damaging it, and a thread removing cam that engages the thread that has been released by the thread guide until the traverse end. In order to stop the thread, the thread is restrained in the opposite direction to the withdrawal direction by the thread removal cam, and when the thread reaches the traverse end, the restraint is released to complete the action of the thread removal cam and remove the thread from the thread guide. The fixed traverse regulating piece and the thread removing cam restrain the thread in the opposite direction to the disengaging direction in order to ensure that the thread moved in the disengaging direction relative to the thread guide is engaged with the receiving thread guide at the traverse end. The present invention is characterized in that thread guide pieces are provided at both ends of the traverse to release the thread from being restrained.

Specific embodiments of the present invention will be described with reference to the drawings.

The present invention uses two sets of endless threads 3, 3' with thread guides attached so as to stop at the positions shown in FIGS. 1 to 9. A drive pulley 1 is fixed to the tip of one shaft 8 with a key 11 as shown in the third figure, and an idler 2 is connected to the rear of the drive pulley 1 via a ball bearing 12. The bevel gear 13 was keyed to the other end.

The other shaft 8' has an idler 2 at its tip as shown in the fourth figure.
, a drive pulley 1' is attached to the rear of each, and a bevel gear gear is attached to the other end.The drive pulleys 1, 1' and idler 2.2 have the same diameter, and the working circumference of each is equal to the traverse length L. was made equal to

Tension pulleys 7 and 7' are attached to the shaft 5 attached to the lower part of the frame 4 through bearings 6°6', and the drive pulley 1 on the shaft 8, the idler 2' on the shaft 8' and the shaft 5
The endless strip 3 is suspended across the upper tension pulley 7,
An endless thread 3' is suspended between the idler 2 on the shaft 8, the drive pulley 1' on the shaft 8' and the tension pulley 7' on the shaft 5, and thread guides 16, 17 are provided on both endless threads 3, 3', respectively. .1
Traverse length of 6' and 17' = twice pitch of L - 2L
Both ends A of the traverse formed between the shafts 8° and 8' according to the running of the endless strips 3 and 3' in opposite directions,
At point B, both endless threads 3 and 3' are placed in a parallel state so that the thread guides 16 and 17 slide against 16' and 17', respectively, as shown in Fig. 2 P and P'.
The bevel gear 1 on the driving shaft 15 is moved in the direction shown by
4, 14' were engaged with bevel gears 13, 13' on shafts 8, 8'.

A traverse guide 22 is fixed along the traverse direction on the front side of the traveling path of both yarn guides 16, 17, 16', and 17', and a roller bail 23 is fixed on the rear side, and the contact pressure with the roller bail 23 A package 25 was formed.

Thread guides 16.1 are installed at both ends A and B of the traverse section, respectively.
Thread removal cams 19 and 19' are located within the interval between the running loci of 7, 16' and 17', and are fixed to the drive pulley 1.1' with bolts 20.2σ, so that the thread on the A side The removing cam 19 moves counterclockwise in the first illustration, and the thread removing cam 19' on the B side moves clockwise, respectively, to the thread guides 16, 17, 16.
', 17', and the circumference of each drive pulley 1.1' is the same length as the traverse length.
The thread removal cam 19, which rotates together with the drive pulley 1 on the traverse A side, is attached to a set of thread guides 18.
The thread removing cam 19' on the traverse B side similarly meets the thread guide 16' on the endless thread 3'.

The number of thread removing cams rotatably provided at the end of the traverse are provided in an appropriate number in proportion to the circumference of the drive pulley 1.1' and the length of the traverse. The endless yarn guide may be rotated synchronously so as to meet the timing of changing the traverse direction.

As shown in the third figure, the winding yarn Y passes through the guide eye 21, comes into contact with the upper edge of the traverse guide 22, is wound into the package 25, and is moved by the yarn guide 16 to 16 at the right end B of the traverse.
' From the position, move left and traverse towards the A end, this is
As it approaches the end, as shown in FIGS. 6a, b, and c, the thread removal cam 19 on the A side rotates counterclockwise from the rear in the running direction of the thread guide 16 and pushes up the thread Y with its end face 26. The thread is removed from the thread guide 16 at the traverse end A, and the thread Y is completely removed from the thread guide 16 at the traverse end A.
As shown in the figure, the thread Y, which is pushed up by the thread removing cam 19, is suppressed downward to just before the front end of the traverse to ensure engagement with the thread guide 16. A regulating piece 28 having a cam protrusion 28' is fixed to the cam protrusion 2, and a beveled edge 27 that extends upward continuously at the rear of the cam protrusion 2.
As the thread Y moves upward along the oblique edge 27, the thread moves in cooperation with the pushing up of the thread removal cam 19, and the thread moves to the fifth,
As shown by ¥2 in Fig. 9, the thread is completely separated from the thread guide 16. At this time, as shown in Fig. 9, the thread guide 16' of the endless thread 3' moves backwards and slides past the thread guide 16', causing the thread to The guide 16' has a guide piece 29 with a sloped tip 2g fixed on the rear side.
Since the yarn Y2 accompanying the leftward movement of the yarn guide 16 is suppressed downward, the yarn guide 16' reliably captures the core portion Y2 and moves to the right to face the traverse B end, and at the same time, the yarn is The thread removal cam 19 that has been pushed up is separated from the thread and continues to rotate.

In this way, the regulating piece 28 accurately regulates the separation timing of the yarn guide and the yarn at the traverse end without interfering with the yarn traverse, and the guide piece 29 ensures that the yarn is captured by the yarn guide on the receiving side. It is something.

At the traverse B end, the regulating piece 28 and the guiding piece 29 are respectively fixed on the rear side and the front side of the thread guide travel path with respect to the front end, and the operation is completely symmetrical to the operation at the front end, so a description thereof will be omitted. do.

In this way, the present invention transfers and traverses the yarn when the yarn guides running in opposite directions pass each other at both ends of the traverse, and when the yarn is transferred, the thread removal cam is moved against the yarn that is being traversed. The regulation piece and the guide piece act in synchronization with the direction of the yarn to push the yarn in the direction of leaving the yarn guide without damaging the yarn and control the position of the yarn in the core. It is ensured that the release timing coincides with the traverse end, and that the time of catching the yarn by the yarn guide that receives the yarn coincides with the traverse end, thereby ensuring accurate transfer of the yarn between the yarn guides and achieving a constant stroke traverse movement. It has the feature that it is possible to wind up an excellent package without defects such as the height of the edges or the deformation caused by this, and has a combination structure with no reciprocating mass and only rotational motion, Since it uses flexible endless strips, it is suitable for producing large packages at high speed.

[Brief explanation of drawings]

The drawings show an example of the implementation of the present invention, and the first figure is a front view and the second figure is a front view.
The figure is a plan view, and Figures 3 and 4 are 1ll of Figure 1.
-1, IV-IV line sectional view, Figure 5 is a side view showing the relationship between the thread removal cam, traverse regulating piece, guide piece and yarn at the left end of the traverse, Figure 6 a, b and c are thread removal A front view for explaining the operation of the cam, and FIGS. 7 to 9 are a front view and a side view for explaining the operation of the traverse regulating piece and the guide piece. 3.50... Endless strip, 16, 17, 16', 1
7'51.52,53...Thread guide, 19,1
9', 59°60... Thread removal cam, 28, 65
...Traverse regulation piece, 29,66...
・Guide piece, A, B... Traverse end, Y...
... Thread.

Claims (1)

[Scope of Claims] 1. Thread guides provided on two sets of endless strips driven by two sets of pulleys installed coaxially at the traverse end are run in opposite directions to each other in the width direction of the endless strips. In a traverse device that traverses a running thread, two sets of pulleys are installed at both ends of the traverse, and a thread removal cam that rotates in a direction perpendicular to the endless thread in synchronization with the running of the endless thread guide. The thread guides are fixed to pulleys on one side located on opposite sides of the thread guides, respectively, so that when the traversing thread guide reaches the traverse end, the thread removing cam rotates to perform thread removing action in the running direction of the thread guide. A traverse device for a yarn winding machine, which is characterized by: 2. At the traverse end, thread guides provided on two sets of endless threads driven by two sets of pulleys installed on the same axis are made to run in opposite directions, so that the threads running in the width direction of the endless threads are moved in opposite directions. A thread removal cam, which rotates in a direction perpendicular to the endless thread in synchronization with the running of the thread guide, is attached to one pulley located on the opposite side of the two sets of pulleys at both ends of the traverse that performs traversing. The threads are stuck together, and when the traversing thread guide reaches the traverse end, the thread removal cam rotates to remove the thread in the running direction of the thread guide, so that the threads run in opposite directions at the traverse end. In a device that transfers yarn between guides, the guide that transfers the yarn that moves upward from the winding yarn path under the action of removing the yarn by the rotation of the yarn removal cam is restrained downward to the traverse end and the traverse is stopped. A fixed traverse regulating piece that releases the restriction at the end, and a guide piece that forms a slope that moves the upwardly moving thread downward toward the traverse end is provided for the guide that receives the thread. The traverse device in the yarn winding machine is characterized by: