JPH11193183A - Spinning winding machine for elastic yarn and elastic yarn package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elastic yarn package and a spinning winding machine for an elastic yarn for forming this package whereby the end of a yarn ending winding can be easily found out. SOLUTION: In this spinning winding machine provided with a yarn switching means switching a yarn Y from a fully wound bobbin FB to an empty bobbin EB, a yarn guide 14 for a winding ending yarn end positioning a yarn introduced to the fully wound bobbin FB in an axial direction one end part side of a bobbin dislocating a yarn layer forming part Pa and a yarn guide 15 for a winding start yarn end positioning a yarn introduced to the empty bobbin EB in a position different from a yarn way introduced to the fully wound bobbin FB are provided. And in an elastic package, a winding ending yarn end is wound to a bobbin end part out of a yarn layer forming part of the bobbin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a package comprising two bobbin holders, a contact roller, a traverse device including a traverse guide, and a position exchange means for exchanging the position of the bobbin holder between a winding position and a standby position. Is fully wound, the bobbin holder provided with an empty bobbin and the bobbin holder on the full package side are switched to switch the yarn to the empty bobbin, and the elastic yarn spinning winder. The present invention relates to an elastic yarn package wound and formed by a take-up machine.

[0002]

2. Description of the Related Art An ordinary spinning winder for elastic yarn rotates a turret plate having two bobbin holders to exchange the positions of bobbin holders, and when the package is fully wound, switches yarns to empty bobbins. A turret type take-up winder for continuously winding a yarn is generally used. In this spinning winder, the turret plate is operated counterclockwise to rotate and stop the full bobbin from the winding position to the intermediate position and the empty bobbin from the standby position to the intermediate position. Thereafter, the yarn winding guide, which is a yarn winding means, is moved so that the elastic yarn makes one turn around the empty bobbin, the full bobbin is suddenly braked to loosen the elastic yarn, and the yarn portion is stretched on the surface of the empty bobbin. Let it stick. The yarn part is wound around the surface of the empty bobbin, and the yarn tension generated when the yarn part on the full bobbin side is wound causes the yarn to break between the empty bobbin and the full bobbin. The next elastic yarn is wound from above and starts winding, fixing the yarn end. After returning the thread winding guide, the empty bobbin is returned to the winding position, and the traverse device shifts to the main winding.

[0003]

As is well known, packages wound by a take-up winder are not limited to elastic yarns, and even in the case of synthetic fibers such as nylon and polyester, the end of the winding ends. It is located on the yarn layer. In a package wound with a normal synthetic fiber, even if the end of winding is located on the yarn layer, this does not cause a big problem, but in the case of a package wound with an elastic yarn, the elastic yarn has adhesiveness. Therefore, there is a problem that it is difficult to find out the end of the wound yarn in the next step or the like.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-mentioned problems in the prior art, and provides an elastic yarn package that can easily find the end of the yarn at the end of winding. Another object of the present invention is to provide an elastic yarn spinning winder capable of forming such a package.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention specifically provides a spinning winder provided with a yarn switching means for switching a yarn from a full bobbin to an empty bobbin. A yarn guide for a winding end yarn end for positioning the yarn to be introduced into the bobbin at the bobbin end outside the yarn layer forming portion of the full bobbin, and a yarn for introducing the yarn to be introduced into the empty bobbin into the full bobbin An elastic yarn spinning winder comprising a winding start yarn end yarn guide positioned at a position different from the road.

Further, according to the present invention, an elastic yarn spinning winder is provided in which the yarn guide for the winding end yarn end is a movable guide member movable along the axial direction of the bobbin.

Further, according to the present invention, an elastic yarn spinning winder in which the winding start yarn end yarn guide is movable along the axial direction of the bobbin.

On the other hand, in the present invention, the second invention
The winding end yarn end constitutes an elastic yarn package wound around the bobbin end outside the yarn layer forming portion of the bobbin.

Further, according to the present invention, the winding start yarn end is
This constitutes an elastic yarn package wound around the yarn layer forming portion of the bobbin.

Still further, according to the present invention, an elastic yarn package in which a winding start yarn end is wound around a bobbin end which is separated from a yarn layer forming portion of the bobbin on a side opposite to the winding end yarn end. .

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a spinning winder for an elastic yarn and an elastic yarn package according to the present invention will be described in detail based on specific embodiments shown in the drawings. FIG. 1 is a schematic front view showing a specific embodiment of an elastic yarn spinning winder according to the present invention, showing a state in which a yarn has been wound around a bobbin through a yarn winding process. FIG. 2 is a schematic front view showing a procedure of yarn switching in the elastic yarn spinning winder, and FIG. 3 is a schematic enlarged front view for explaining details at the time of yarn switching. FIG. 4 is a schematic plan view seen in the direction of arrow XX in FIG.

FIG. 5 shows a different example of the elastic yarn package according to the present invention. FIG. 5A shows a case where the winding end yarn end is wound around the bobbin end portion which is outside the yarn layer forming portion of the bobbin. FIG. 5B is a schematic plan view illustrating a configuration example in which a winding start yarn end is wound around a yarn layer forming portion of a bobbin.
The winding end yarn end is wound around the bobbin end that has deviated from the bobbin yarn layer forming portion, and the winding start yarn end is at the bobbin end that has deviated from the bobbin yarn layer forming portion on the side opposite to the winding end yarn end. It is a schematic plan view which shows the example of a wound structure.

First, the basic structure of the elastic yarn spinning winder M according to the present invention will be described with reference to FIG. In FIG. 1, the elastic yarn spinning winder M includes a body frame 7, and the body frame 7 is provided with a vertically movable box 1, a rotatable turret plate 2, and a front end. A fixed frame 8 having a panel 9 is provided.

The elevating box 1 supports a contact roller 3 and a traverse device 4, respectively. The contact roller 3 is pressed against the yarn surface layer of the bobbin B at the winding position P _1, in order to counter-clockwise rotation of FIG. 1 the bobbin B in the winding, by a drive source (not shown) Drive rotationally.

The traverse device 4 is provided with a traverse guide 5, and the traverse guide 5 engages with the elastic yarn Y and travels in the traverse range to traverse the elastic yarn Y.

The turret plate 2 is rotatable about a rotating shaft 6 by a rotation drive device (not shown), and two bobbin holders 11 and 12 are rotatably projectingly supported by the turret plate 2, respectively. Bobbin holder 11, 1
2, a plurality of bobbins B are respectively mounted, one bobbin holder 11 is located at a winding position P ₁ , and the other bobbin holder 1 is
2 is located in the standby position P _2. In FIG. 4, only one bobbin B is shown as a representative for simplification.

[0017] The winding position P ₁ the elastic yarn Y was wound onto the bobbin B of the bobbin holder 11 located, the turret plate 2 is rotated each time the bobbin B becomes a full bobbin FB,
The full bobbin FB at the winding position P ₁ to the standby position P ₂ from the winding position P _1, the empty bobbin E that has been prepared at the standby position P ₂
B are moved from the standby position P ₂ to the winding position P _1, and winding the elastic yarn Y from the full bobbin FB and continuously switches the empty bobbin EB by the yarn switching guide means 13 during the movement.

In the present invention, the yarn switching guide means 13 comprises a yarn guide 14 for a winding end yarn end and a yarn guide 15 for a winding start yarn end. The end-of-winding yarn end yarn guide 14 is for positioning the yarn Y introduced into the full bobbin FB at one end Ba of the bobbin B outside the yarn layer forming portion Pa of the full bobbin FB. For example, it comprises a pole-shaped moving guide member 16 assembled in a comb shape, and is configured to be movable along the axial direction of the bobbin B. The end-of-winding yarn end thread guide 14 is attached to the turret plate 2 so that the pawl-shaped moving guide member 16 extends over the center of rotation of the turret plate 2 by dividing the bobbin holder at the winding position and the bobbin holder at the standby position. Have been. However, in order to increase the maximum winding diameter of the full bobbin FB, the full bobbin FB is mounted not on the turret plate 2 but on the body frame 7 side when necessary.
It is preferable to advance between the empty bobbin EB. In this embodiment, the pole-shaped moving guide member 1
6 moves from the standby position on the other end Bb side of the bobbin B shown by the two-dot chain line in FIG. 4 to the position on the one end Ba side of the bobbin B shown by the solid line in FIG.

On the other hand, the winding start yarn guide 15
Is a swing arm 1 pivotally supported by a lower portion of the body frame 7.
7 and a guide bar 18 attached to the tip of the swing arm 17. The swing arm 17 is provided on the tip side of the bobbin holders 11 and 12, and the guide bar 1 is attached to the root side of the bobbin holders 11 and 12 from this tip side.
8 is cantilevered. Empty bobbin EB is the yarn switching position is swung arm 17 is rotated when in the intermediate position P ₄ shown in phantom in FIG. 1, the guide bar 18
The rotating shaft 19 of the swing arm 17 is provided so that the elastic yarn Y can be wound around the empty bobbin EB. The swing arm 17 normally stands by at a position where the guide bar 18 and the like do not contact the full bobbin FB when the turret plate 2 rotates.

In the present invention, the swing arm 17 of the thread guide 15 for the winding start thread end is configured to swing about a rotation axis 19 by about 180 degrees by driving means such as a rotary actuator (not shown). Have been. The guide bar 18 of the winding start yarn end yarn guide 15 is attached to the tip of the swing arm 17 and has a guide groove 20 into which the elastic yarn Y enters as shown in FIG. The guide groove 20 has curved portions 21 and 21 for guiding the elastic yarn Y along a curved line, and the elastic yarn Y is guided along the curved portions 21 and 21 without fail.
To the bottom 20a.

Further, in the present invention, the winding start thread end thread guide 15 may be configured to be movable along the axial direction of the bobbin B, as indicated by a virtual line in FIG. In this case, the winding start yarn guide 15
Thereby, the winding start yarn end can be wound around the bobbin end Bb, which is separated from the yarn layer forming portion Pa of the bobbin B on the side opposite to the winding end yarn end.

The operation at the time of the yarn switching will be briefly described with reference to FIGS. 2A to 2F. In FIG. 2A, winding of the bobbin B onto the bobbin B is completed and the full bobbin FB
There is in a state of being positioned in the winding position P _1. By rotating the turret plate 2 counterclockwise at this stage, the empty bobbin EB is brought to the winding position side, and abuts on the elastic yarn Y extending from the full bobbin FB (see FIG. 2B).
Further rotating the turret plate 2, the intermediate position P ₃ the full bobbin FB from the winding position P _1, to move the empty bobbin EB from the standby position P ₂ in the intermediate position P _4, the turret plate in that state position 2 Is temporarily stopped (see FIG. 2C).

[0023] In the step shown in FIG. 2C, operating the winding start yarn yarn for the end guide 15, captures the yarn portion Ya of the elastic yarn Y to the empty bobbin EB is located in the intermediate position P _4, in Figure 2C,
The state shown by the virtual line is brought to the state shown by the solid line (the yarn path is changed as shown by FIG. 3), and the yarn part Ya is shifted to the state for bunch winding around the axially intermediate part of the empty bobbin EB. .

On the other hand, in FIG. 2D, the end-of-winding yarn end thread guide 14 is actuated in the forward direction in the drawing to catch the yarn portion Ya of the elastic yarn Y, and from the state shown by the phantom line in FIG. (The yarn path is changed as shown in FIG. 3), that is, the yarn portion Ya is removed from the yarn layer forming portion Pa of the full bobbin FB to one end Ba of the full bobbin FB, and The winding end yarn end is wound around one end Ba of the full bobbin FB.

By removing the yarn portion Ya from the yarn layer forming portion Pa of the full bobbin FB to one end portion Ba, the tension of the yarn portion Ya decreases, and the yarn portion Ya winds around the surface of the empty bobbin EB, and becomes full. The yarn breaks between the empty bobbin EB and the full bobbin FB due to the yarn tension generated when the yarn portion Ya on the winding bobbin FB side is wound, and the next elasticity is applied from above the elastic yarn Y stuck to the empty bobbin EB. The yarn Y is wound and the winding is started to fix the yarn end. After returning the winding end yarn guide 15 to the winding start, as shown in FIGS. 2E and 2F, the empty bobbin EB
Back to the winding position P _1, and procedure proceeds to the winding by the traverse device 4.

Next, the configuration of a novel package product according to the present invention processed by the above-described elastic yarn spinning winder will be described with reference to FIG. In the package P-1 according to the first embodiment shown in FIG. 5A, the winding start yarn end Yc with respect to the bobbin B is located at the axial middle portion of the bobbin B (axial middle portion of the yarn layer forming portion Pa). The bunch is wound, and the winding end yarn end Yd is wound from the yarn layer forming portion Pa of the bobbin B to one end Ba of the bobbin B.

On the other hand, the package P-2 according to the second embodiment shown in FIG.
c is wound from the yarn layer forming portion Pa of the bobbin B to the other end Bb of the bobbin B, and the winding end yarn end Yd is
The bobbin B is wound around one end Ba of the bobbin B from the thread layer forming portion Pa. In any of the above embodiments, since the winding end yarn end is wound around one end Ba of the bobbin B which is off the yarn layer forming portion Pa, it is very easy to find the winding end yarn end. it can. Further, in the second embodiment, the winding start yarn end Y
c is wound around the other end Bb of the bobbin B on the side opposite to the winding end yarn end Yd, so that the winding start yarn end Yc can be easily taken out, and the winding start yarn end Yc and the winding end yarn end Yd And do not overlap.

[0028]

According to the spinning winder for an elastic yarn of the present invention having the above-described structure, the yarn to be introduced into the full bobbin is positioned at the bobbin end outside the yarn layer forming portion of the full bobbin. By winding the end-of-winding yarn end by the yarn end yarn guide, the end-of-winding yarn end can be provided as an elastic yarn package product in which the end of the winding end can be found very easily. It can be said that it works extremely effectively as a spinning winder for elastic yarn.

[Brief description of the drawings]

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic view showing a specific embodiment of an elastic yarn spinning winder according to the present invention, showing a state where a yarn has been wound around a bobbin through a yarn winding step. It is a typical front view.

FIGS. 2A to 2F are schematic front views showing a procedure of yarn switching in the elastic yarn spinning winder.

FIG. 3 is a schematic enlarged front view for explaining details of yarn switching by a winding end yarn end yarn guide and a winding start yarn end yarn guide.

FIG. 4 is a schematic plan view seen in the direction of arrows XX in FIG. 3;

FIG. 5 shows another example of the elastic yarn package according to the present invention, and FIG. 5A shows a case where the winding end yarn end is wound around the bobbin end portion which is outside the yarn layer forming portion of the bobbin. FIG. 5B is a schematic plan view illustrating a configuration example in which the winding start yarn end is wound around the bobbin yarn layer forming section, and FIG. FIG. 5 is a schematic plan view showing a configuration example in which a winding start yarn end is wound around a bobbin end which is separated from a yarn layer forming portion of the bobbin on the side opposite to the winding end yarn end.

[Explanation of symbols]

M elastic yarn for take-up winder Y elastic yarn 2 turret plate 3 contact roller 4 traverse device 5 traverse guide P ₁ winding position P ₂ standby position P _3, P ₄ intermediate position EB empty bobbin FB full bobbins 11, 12 two Bobbin holder 13 Thread switching guide means 14 Thread end thread end guide 15 Thread start thread end thread guide

Claims (6)

[Claims] 1. A bobbin winder equipped with a yarn switching means for switching a yarn from a full bobbin to an empty bobbin, wherein the yarn to be introduced into the full bobbin is removed from the bobbin end outside the yarn layer forming portion of the full bobbin. A thread guide for the end of winding thread to be positioned at
A yarn winding yarn winding machine for an elastic yarn, comprising: a winding start yarn end yarn guide for positioning a yarn introduced into an empty bobbin at a position different from a yarn path introduced into the full bobbin. 2. The elastic yarn spinning winder according to claim 1, wherein the end-of-winding yarn end yarn guide is a movable guide member movable along the axial direction of the bobbin. 3. The winder for elastic yarn according to claim 1, wherein the yarn guide for the winding start yarn end is movable along the axial direction of the bobbin. 4. The elastic yarn package according to claim 1, wherein the winding end yarn end is wound around a bobbin end which is outside a yarn layer forming portion of the bobbin. 5. The elastic yarn package according to claim 4, wherein a winding start yarn end is wound around a yarn layer forming portion of the bobbin. 6. The bobbin end according to claim 4, wherein the winding start yarn end is wound around the bobbin end which is separated from the yarn layer forming portion of the bobbin opposite to the winding end yarn end. Elastic yarn package.