JPH02243476A - Automatic transfer winding method - Google Patents

Abstract

PURPOSE:To prevent any damage to a yarn filament in the innermost part of a package by installing a yarn keeping guide at the downstream side of a traverse motion and at the upstream side of a touch roller to the running yarn filament, and operating it at the specified timing. CONSTITUTION:A yarn keeping guide 5 is set up between a traverse motion 3 and a touch roller 6 to a running yarn filament 1. When a package 10 rolled on a bobbin 7a on a bobbin holder 13a becomes fullness, a turrent plate 11 is rotated and an empty bobbin 7b is moved to a winding position, while the yarn filament 1 is caught by a yarn handler guide 2, making it separate, and it is led into a yarn groove of the empty bobbin 7b for holding. Next, the yarn filament 1 is cut and, as restoring the yarn handler guide 2 to its original position, the yarn keeping guide 5 is operated, taking over the yarn filament 1, and if the yarn handler guide 2 is restored, the yarn keeping guide 5 is separated, thus traverse is started by a traverse guide 4. Thus, eve if winding speed is increased, any damage to the yarn filament in the package innermost part can be prevented.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is directed to a turret-type automatic switching winding machine that prevents the generation of yarn in the innermost layer of the package when switching the yarn from a fully wound bobbin to an empty bobbin. The present invention relates to a winding method that can prevent damage and obtain a good package.

(Prior Art) In recent years, in the production of synthetic fibers, turret-type automatic switching winders have come to be widely used as spinning speeds and drawing speeds have increased.

A conventional yarn switching method in a turret type automatic switching winding machine will be described with reference to FIGS. 3 to 5. Figure 3~
In FIG. 4, (A) is a schematic front view of the turret type automatic switching winder, and (B) is a side view thereof.

Is there a bobbin on the turret board 11? Bobbin holders 13a and 13b are provided with bobbin holders 13a and 7b attached thereto.

The thread 1 is captured by the traverse guide 4 of the traverse device 3 and wound around the bobbin 7a attached to the bobbin holder 13a while being swung, thereby forming the package 10. The puff cage 10 being wound up becomes larger as the yarn 1 is wound up, and the peripheral speed of the package increases. Therefore, in order to keep the winding speed constant, the rotational speed of the bobbin holder 13a is controlled, and the traverse speed of the traverse guide 4 is also controlled according to the rotational speed of the bobbin holder 132.

Note that 6 in Figure 5 is a touch roller.

When a predetermined amount of yarn 1 has been wound onto the bobbin 7a and the yarn has been fully wound, the turret plate 11 is moved in the direction of rotation of the bobbin holder 132 in order to switch to the empty bobbin 7b waiting on the opposite side of the turret plate 11. The full bobbin 7a is rotated in the opposite direction to move the fully wound bobbin 7a to the standby side, and at the same time, the empty bobbin 7b is switched to the empty bobbin 7b waiting on the opposite side, and the empty bobbin 7b is moved to the winding position.

At this time, in order to guide the traveling yarn l caught by the traverse guide 4 and traversing to the yarn catching groove 12b of the empty bobbin 7b, the yarn shifting guide 2 is operated as shown in FIG. The yarn 1 is captured by the thread shifting guide 2, removed from the traverse guide 4, moved outside the traversing range, and guided to the thread capturing groove 12b of the empty bobbin 7b. It is wrapped around the capture groove 12b and held.

Note that guide guides 9a and 9b are provided to prevent the yarn 1 from coming off the winding surface of the full package when the running yarn 1 is outside the traversing range.

When the yarn 1 is gripped by the yarn catching groove 12b, the yarn is cut by a cutting device (not shown) between the gripping part and the full package 10, and the yarn supply to the full package is cut off. The thread shifting guide 2 returns to its original position, and the thread l moves toward the center of the bobbin due to its own tension, and when it enters the traversing range of the traverse guide 4, it is caught by the traverse guide 4 and starts traversing. Then, it is wound onto the empty bobbin 7b.

At this time, if the traverse speed of the traverse guide 4 is faster than the speed at which the thread guide 2 returns to its original position, the thread guide 2 will interfere with the thread reaching the traverse guide 4, as shown in FIG. The threads 1 will be bent significantly, causing damage to the threads in the innermost layer of the package 10.

(Problems to be Solved by the Invention) An object of the present invention is to prevent damage to the yarn in the innermost layer of the package immediately after switching as described above.

The object of the present invention is to provide a winding method in a turret type automatic switching winder that can obtain a good package.

(Means for Solving the Problem) As a result of intensive study on the above-mentioned problem, the present inventors have found that
In a turret-type automatic switching winder, a yarn storage guide is provided downstream of the traverse device and upstream of the touch roller relative to the running yarn, and when activated at an appropriate time, the speed of the traverse guide can be precisely adjusted. However, the present invention was achieved by discovering that the yarn can be wound without damaging the yarn in the innermost layer of the package.

That is, the gist of the present invention is as follows.

In the turret type automatic switching winding machine, a yarn storage guide is installed downstream of the traverse device and upstream of the touch roller with respect to the running yarn, and when the bobbin installed on the bobbin holder reaches full winding. Ba.

The turret is rotated to move the empty bobbin on the standby side to the winding position, and at the same time, the yarn caught by the traverse guide and traversing is caught by the thread shifting guide and released from the traverse guide. The yarn captured by the bobbin holder is guided toward the yarn trapping groove formed in the empty bobbin in the axial direction of the bobbin holder, is wound around the yarn trapping groove, and is held in a countershape. Cut the yarn to cut off the yarn feeding to the fully wound bobbin, return the thread shifting guide to its original position, operate the thread storage guide to inherit and capture the thread, and when the thread shifting guide returns to its original position. This is an automatic switching winding method in which the yarn is separated from the guide, and when the yarn enters the traversing range, it is captured by the traverse guide, traverse is started, and the yarn is wound onto an empty bobbin.

Next, the present invention will be explained in further detail.

As mentioned above, in the turret type automatic switching winding machine (see Figs. 3 to 5), when a predetermined amount of yarn 1 is wound onto the bobbin 7a and the yarn 1 is fully wound, the yarn 1 is wound on the opposite side on the turret board 11. In order to switch to the empty bobbin 7b that is waiting, the turret board 11 is rotated in the opposite direction to the rotational direction of the bobbin holder 133 to move the fully wound bobbin 7a to the standby side, and at the same time, the fully wound bobbin 7a is moved to the standby side. Although the yarn 1 is wound on the empty bobbin 7b by switching to the empty bobbin 7b, the above-mentioned problem occurs at this time.

Therefore, in the method of the present invention, a yarn guide 5 is provided downstream of the traverse device 3 and upstream of the touch roller 6 with respect to the running yarn l, as shown in FIGS. 1 and 2. Then, the running yarn 1 that has been caught and traversed by the traverse guide 4 is caught by the thread shifting guide 2 by operating the thread shifting guide 2, and is also detached from the traverse guide 4.

Move the bobbin holder 13a out of the axial traverse range. Furthermore, when the empty bobbin 7b on the standby side moves to the winding position due to the rotation of the turret board 11, the yarn 1 is caught by the yarn guide 2 on the empty bobbin 7b. 11t2
There, the guide 8 operates to guide the thread to the thread catching groove 12b of the empty bobbin 7b, and the thread catching groove 12b is guided to the thread catching groove 12b.
It is wrapped around and held. Once the yarn l is gripped by the yarn catching groove 12b, the yarn shifting guide 2 returns to its original position (the second
figure). At this time, the guide 5 operates to take over the running yarn 1 from the yarn shifting guide 2 and capture it. Furthermore, when the yarn 1 is gripped by the yarn catching groove 12b, the yarn between the yarn gripper 1 and the full package 10 is cut by a cutting device (not shown).
The yarn is cut, the supply of yarn to the bobbin 7a is cut off, and the yarn is wound onto the bobbin 7b.

On the other hand, when the thread guide 2 returns to its original position, the thread 1, which was caught by the guide 5, is released from the guide 5 and moves to the vicinity of the center of the bobbin due to its own tension. When it encountered the traverse guide 4, it was captured by the traverse guide 4.

The twilling starts and the material is wound onto the bobbin 7b.

Then, the thread hooking guide 8 and the thread storage guide 5 return to positions where they do not affect the winding of the thread. Further, if necessary, the traveling yarn 1 may be released from the guide 8 after winding the yarn 1 necessary for forming the tail punch near the yarn catching groove 12b.

The method for operating the guide 5 for thread storage is to use the bobbin holder 1.
It can be operated back and forth with respect to the axis of 3b, or the turret board 1
There is a method of capturing yarn 1 by tilting the bobbin holder in a direction perpendicular to the bobbin holder axis from the axial direction of the bobbin holder, but li! In fact, it is sufficient if yarn 1 can be maintained.

Thread guide 2. Guide 5. The operation of the guide 8 and the like for threading is performed by mechanical control or electrical control using a limit switch, a timer, or the like.

Note that when the running yarn 1 captured by the traverse guide 4 is removed from the traverse guide 4 by the yarn shifting guide 2 as described above, the traveling yarn 1 is damaged, but the damaged part is damaged by the package. Since it is wound on the outermost layer of the paper, it can be easily removed.

(Function) In a turret type automatic switching winding machine, a yarn storage guide is provided on the downstream side of the traverse device and upstream of the touch roller with respect to the traveling yarn, and the yarn is gripped by the yarn catching groove and the yarn is stored. When the guide returns to its original position, the guide operates to inherit and capture the traveling yarn, eliminating interference from the yarn handling guide and preventing damage to the yarn in the innermost layer of the package that occurs when the first winding starts. It becomes possible to prevent this.

(Effects of the Invention) According to the present invention, in a turret-type automatic switching winder, even if the winding speed is increased when switching the yarn from a fully wound bobbin to an empty bobbin, yarns in the innermost layer of the package are generated. You can prevent damage and get a good package.

[Brief explanation of drawings]

1 to 2 are schematic diagrams showing embodiments of the automatic switching winding method of the present invention in a turret type automatic switching winding machine,
3 and 4 are schematic diagrams showing aspects of a conventional turret type automatic switching winder. FIG. 5 is a schematic front view for explaining the state of interference of the yarn shifting guide with the yarn in a conventional turret type automatic switching winding machine. In addition, in FIGS. 1 to 4, (A) is a front view. (4) is a side view. 1: Yarn, 2: Yarn guide, 3: Traverse device, 4
: Traverse guide, 5: Thread guide.

Claims (1)

[Claims] (1) In a turret type automatic switching winder, a yarn deposit guide is provided downstream of the traverse device and upstream of the touch roller with respect to the traveling yarn, and when the bobbin installed on the bobbin holder reaches full winding. For example, by rotating the turret and moving the empty bobbin on the standby side to the winding position,
The yarn caught by the traverse guide and traversing is caught by the thread shifting guide and released from the traverse guide, and the yarn caught by the thread shifting guide is transferred to the thread catching formed on the empty bobbin in the axial direction of the bobbin holder. Guide the yarn to the groove side, wrap it around the yarn catching groove and grip it, cut the yarn at the joint between the full bobbin and the empty bobbin, cut off the yarn supply to the full bobbin, and return the thread guide to its original position. While returning the thread, operate the thread depositing guide to take over and capture the yarn, and when the thread depositing guide returns to its original position, remove the thread from the thread depositing guide, and from the point where the thread enters the traversing range. An automatic switching winding method that catches the traverse guide, starts traversing, and winds the empty bobbin.