JP2620325B2 - Method and apparatus for automatically switching elastic yarn winding and method of manufacturing elastic yarn wound body - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to automatic winding of elastic yarn.

More specifically, it relates to automatic winding switching that automatically switches from a full bobbin to an empty bobbin after winding a specified amount when spinning and winding an elastic yarn, in order to eliminate failure during automatic winding switching. The present invention relates to an automatic winding method and apparatus.

[Conventional technology]

Conventionally, as a technology for automatically switching the winding of elastic yarn, Japanese Patent Application Laid-Open
The technique described in Japanese Patent Application No. -56779 is known.

In this prior art, two bobbin shafts and the bobbin shafts are
In an automatic switching winding machine composed of a rotating drum rotatably supported at an interval of °, a friction roll that drives a bobbin shaft in contact, and a traverse device that performs traversing, a yarn position regulating plate is provided upstream of the traverse device. Is provided, the shape of the threading portion of the thread position regulating plate is constituted by two inclined surfaces that are opposite to each other, and the opening of the inclined surface is wider than the traverse width,
And the inclination angle is 20 ° or more, and at the intersection of the inclined surfaces opposite to the position at the time of automatic switching of the yarn position regulating plate, the yarn position regulating plate operates while releasing the yarn from the traverse device while regulating the yarn position. It is an automatic switching winder for polyurethane fibers.

 Next, the prior art will be described with reference to the drawings.

FIG. 7 is a perspective view showing the prior art of the automatic switching winding device, FIG. 8 is a front view of the same, and FIGS. 9 (a) to 9 (e) are operation explanatory views as viewed from the front.

As shown in FIGS. 7 and 8, the automatic switching take-up device shown in these figures comprises a take-up device main body 10, an elevating seat plate 9 attached thereto, a traverse box 2, and a yarn position regulating device. A device 7, a traverse device 3 arranged corresponding to the number of supply yarns, a friction roll 1, a rotating body 4,
In this example, bobbin shafts 5 and 6 mounted on the circumference of the bobbin at intervals of 180 °, and bobbins 8 mounted on the bobbin shafts 5 and 6 in accordance with the number of supply yarns, are provided. In addition, it has a godet roll (see reference numeral 12 in FIG. 5) and the like.

7, the bobbin 8 is formed with a blade cut 8 ". This blade cut 8" is formed.
Is cut for the purpose of gripping the supply yarn.

The supply yarn is an elastic yarn, which is a yarn supplied to the bobbin 8 and wound. The elastic yarn includes a polyurethane elastic yarn, a polyester elastic yarn, a polyamide elastic yarn, a polycarbonate elastic yarn, a composite or mixed elastic yarn thereof, and a composite or a composite with another polymer mainly composed of the elastic polymer. There are mixed elastic yarns and the like. In particular, polyurethane-based elastic yarn is suitable. Polyurethane elastic yarns include polyether, polyester, polyamide,
There are elastic yarns obtained from polyurethane having a soft segment of polycarbonate, polycaprolactone, polyether polyester and the like and a mixed component thereof.

 In FIGS. 7 to 9, reference numeral 8 'denotes a rolled ball.

In this conventional technique, the supply yarn Y is wound around the bobbin 8 which is mounted on the bobbin shaft 5 and is rotating while being in contact with the friction roll 1 in the state shown in FIG.

Meanwhile, an empty bobbin 8 is mounted on another bobbin shaft 6 that has moved to a position off the friction roll 1,
I'm waiting.

When the supply yarn Y reaches a full tube by winding the supply yarn Y onto the bobbin 8 mounted on the bobbin shaft 5, the rotating body 4 is rotated clockwise in this example as shown in FIG.
Rotate 180 °, move the bobbin shaft 6 on which the empty bobbin 8 is mounted to a position where the bobbin 8 comes into contact with the friction roll 1 as shown in FIG. The bobbin shaft 5 is moved to a position where the bobbin shaft 5 does not contact the friction roll 1.

Next, as shown in FIG.
Is operated, and the supply yarn Y is wound around the full bobbin while being released from the traverse device 3 by traveling at the intersection of the inclined surfaces of the yarn position regulating device 7 (see FIG. 4).

Next, the supply yarn Y running between the empty bobbin 8 and the full bobbin is cut into a circumferential surface of the empty bobbin 8 for the purpose of gripping the supply yarn Y, that is, a so-called blade cut 8. ″
And wound around the empty bobbin 8.

Then, the operating yarn position regulating device 7 is returned to the original position as shown in FIG. 9 (e), and the supply yarn Y released from the traverse device 3 is returned to the original traverse device 3.
The automatic switching of the winding of the elastic yarn is completed.

[Problems to be solved by the invention]

By the way, the elastic yarn has a function of high elasticity as compared with other general-purpose synthetic fibers. Usually, the elastic yarn is wound up compared with other general-purpose synthetic fibers in order to maintain the function even when wound on the wound ball 8 '. The part is wound with extremely low tension. here,
The tension of the winding section is the tension between the godet roll 12 and the traverse device 3 in FIG.

Therefore, in the prior art, when shifting from the state of FIG. 9 (d) to the state of FIG. 9 (e), if the yarn position regulating device 7 is to be returned to the original position, the tension of the winding portion instantaneously approaches zero. For,
The supply yarn Y is provided at the traverse device 3 corresponding to the supply yarn.
Does not return and returns to the adjacent traverse device 3 (hereinafter, this phenomenon is referred to as “end movement”) in many cases. In particular, as shown in FIG.
12 rotates at a high speed and is above the height of the worker's face, so it is often shorter than the bobbin axis for safety reasons.In this case, the supply yarns Y at the left and right ends are This problem is even more pronounced because it lies outside the vertical.

Further, in the prior art, the bobbin 8 has a blade cut 8 ″.
Is disadvantageous in terms of manufacturing cost and strength of the bobbin 8 as compared with a bobbin without a blade cut. Further, even after the supply yarn Y is wound around the empty bobbin 8, the innermost elastic yarn of the wound ball 8 'bites into the blade cut 8 "many times, making it difficult to release the innermost elastic yarn. There are also problems.

A first object of the present invention is to provide a method for automatically switching the winding of an elastic yarn, which can increase the success rate of automatic winding switching by preventing the end movement, and can switch the bobbin without cutting the blade. A second object of the present invention is to provide an elastic yarn winding automatic switching device capable of appropriately executing the method of the present invention. A third object of the present invention is to
An object of the present invention is to provide a method of manufacturing an elastic yarn winding yarn body, wherein the elastic yarn is wound by the winding automatic switching method of the present invention using the device of the present invention.

[Means for solving the problem]

In order to achieve the first object, in the method of the present invention, the full bobbin on which the supply yarn has been wound up by a predetermined amount is moved to a position where the full bobbin does not come into contact with the friction roll via the bobbin shaft, and is simultaneously moved to another bobbin shaft. The empty bobbin mounted and waiting is moved to a position where it comes into contact with the friction roll, the supply yarn is released from the corresponding traverse device, and the supply yarn is wound around the empty bobbin that has been moved to the position where it comes into contact with the friction roll. In automatic take-up switching, the full bobbin is stopped suddenly at a position where it does not come into contact with the friction roll, and then, automatic take-up switching is performed where the supply yarn is taken up on an empty bobbin moved to a position where it comes into contact with the friction roll. In the above, the rotation of the full bobbin is suddenly stopped at a position where the bobbin is not in contact with the friction roll, and a supply yarn is attached to the empty bobbin and wound. Traverse between the full bobbin and the empty bobbin and then starting to guide the supply yarn to the traverse device corresponding to the supply yarn until the supply yarn is captured by the traverse device corresponding to the supply yarn. Insert a partition between adjacent supply yarns in the arrangement direction of the device,
After each supply yarn is captured by the traverse device corresponding to the supply yarn, the partition is removed, and the supply yarn wound around the empty bobbin is continuously wound.

Further, in order to achieve the second object, in the apparatus of the present invention, the full bobbin on which the supply yarn has been wound up by a predetermined amount is moved to a position not in contact with the friction roll via the bobbin shaft, and the other bobbin shaft is simultaneously moved. Means for moving the empty bobbin, which is mounted in advance and waiting, to a position in contact with the friction roll, and then suddenly stopping the rotation of the full bobbin at a position not in contact with the friction roll; and A partition member inserted and removed between adjacent supply yarns and a partition member that is installed between the supply yarn and a traverse device corresponding to the supply yarn from when the supply yarn is started to when the supply yarn is captured by the traverse device corresponding to the supply yarn. After inserting the partition member between the adjacent supply yarns, and after the supply yarns are captured by the traverse device corresponding to the supply yarns, the space between the adjacent supply yarns is It is provided with operating means for removing the partition member.

Furthermore, in order to achieve the third object, the method for manufacturing an elastic wound thread body according to the present invention includes the steps of: attaching a plurality of bobbin shafts at intervals on the circumference of the rotating body; An empty bobbin is attached in accordance with a certain number of supply yarns, the empty bobbin or the wound ball is brought into contact with a friction roll and driven to rotate, each supply yarn is traversed, and the supply yarn is wound around the bobbin corresponding to the supply yarn. The full bobbin on which the supply yarn has been wound up by a predetermined amount is moved to a position where the full bobbin does not come into contact with the friction roll via the bobbin shaft, and at the same time, the empty bobbin which is previously mounted on another bobbin shaft and is on standby is defined as the friction roll. An elastic bobbin that moves the supply yarn to the empty bobbin moved to a position where the supply yarn is released from the corresponding traverse device and moved to a position where the supply yarn comes into contact with the friction roll; In the method of manufacturing a body, the rotation of the full bobbin is suddenly stopped at a position where the full bobbin is not in contact with the friction roll, a supply yarn is attached to the empty bobbin and wound, and the bobbin is torn between the full bobbin and the empty bobbin, and then supplied. From the time when the supply yarn is started to be guided to the traverse device corresponding to the yarn to the time when the supply yarn is captured by the traverse device corresponding to the supply yarn, a partition is inserted between the supply yarns adjacent to each other in the arrangement direction of the traverse device to supply the yarn. After each supply yarn is captured by the traverse device corresponding to the yarn, the partition is removed, and the supply yarn wound around the empty bobbin is continuously wound.

[Action]

In the method of the present invention, the full bobbin on which the supply yarn has been wound up by the specified amount is moved to a position where the full bobbin does not come into contact with the friction roll via the bobbin shaft, and at the same time, the empty bobbin which is previously mounted on another bobbin shaft and is on standby. After being moved to a position where it contacts the friction roll, rotation of the full bobbin is suddenly stopped at a position where it does not contact the friction roll. As a result, the supply yarn slackens between the empty bobbin and the full bobbin,
A supply yarn as an elastic yarn is wound around an empty bobbin without a blade cut. The reason is that the empty bobbin rotates in contact with the friction roll, the full bobbin stops rotating,
In addition, since the elastic yarn has a much higher coefficient of friction than general synthetic fibers such as general nylon and polyester, when the full bobbin is suddenly stopped, the supply yarn as the elastic yarn does not go to the full bobbin, and the friction roll This is because it is immediately attached to the empty bobbin that is rotating in contact with the bobbin.

When the supply yarn is wound around the empty bobbin, the full bobbin does not rotate and the empty bobbin rotates, so that the supply yarn is torn between the empty bobbin and the full bobbin, and the supply yarn is wound around the empty bobbin. Can be switched to

After the supply yarn is wound around the empty bobbin, the traverse device is moved from when the supply yarn starts to be guided to the traverse device corresponding to the supply yarn until the supply yarn is captured by the traverse device corresponding to the supply yarn. A partition is inserted between the supply yarns adjacent in the arrangement direction. Thereby, since each supply yarn in a floating state between the godet roll and the traverse device is partitioned so as not to go to the traverse device side adjacent to the traverse device corresponding to the supply yarn, end movement does not occur, and Each supply yarn is reliably captured by the corresponding traverse device.

After each supply yarn is captured by the traverse device corresponding to the supply yarn, the partition is removed.

Next, the supply yarn is continuously wound around the empty bobbin in contact with the friction roll until the supply yarn reaches a specified amount.

Next, in the apparatus of the present invention, the full bobbin on which the supply yarn has been wound up by a predetermined amount is moved to a position where the full bobbin does not come into contact with the friction roll via the bobbin shaft, and at the same time, the idle bobbin which is previously mounted on another bobbin shaft and is on standby After the bobbin is moved to a position where the bobbin comes into contact with the friction roll, the rotation stop means is activated to suddenly stop the rotation of the full bobbin.

When the rotation of the full bobbin is suddenly stopped, the empty bobbin rotates in contact with the friction roll, and the supply bobbin becomes full due to the fact that the full bobbin has stopped rotating and the characteristic characteristic of the elastic yarn as described above. Instead of going to the tube bobbin, it immediately adheres and wraps around the empty bobbin rotating in contact with the friction roll.

After the supply yarn is wound around the empty bobbin and then torn off, the winding of the supply yarn is switched to the empty bobbin. The partition member is inserted between the supply yarns adjacent to each other in the arranging direction of the traverse device from the time when the supply yarn is guided to the time when the supply yarn is captured by the traverse device corresponding to the supply yarn.

Thereby, each supply yarn in a floating state between the godet roll and the traverse device does not go to the traverse device adjacent to the traverse device corresponding to the supply yarn, so that the end movement does not occur, and the traverse device corresponding to the supply yarn does not move. Each supply yarn is reliably captured.

Then, after each supply yarn is captured by the traverse device corresponding to the supply yarn, the partition member is operated to retreat by operating means, and the partition member is removed from between adjacent supply yarns.

〔Example〕

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

1 to 6 show an example of an apparatus for carrying out the method of the present invention. FIG. 1 is a perspective view, FIG. 2 is a front view, and FIGS. 3 (a) to 3 (c) are front views, respectively. FIG. 4 is an explanatory view of the operation of the yarn position regulating device, FIG. 6 is a diagram schematically showing a traverse guide constituting the traverse device, and FIG. 5 is an operational state of the partition member. It is a perspective view.

As shown in FIGS. 1, 2 and 5, the automatic winding apparatus for winding elastic yarn of the embodiment shown in these figures has a winding machine main body 10 and a lifting seat plate 9 attached thereto. And the rotator 4, the godet roll 12, the traverse box 2 attached to the elevating seat plate 9, the partition member 11 provided to be inserted into and removable from the traverse box 2, and operating means (not shown) thereof. And a yarn position regulating device 7,
A traverse device 3, a friction roll 1 rotatably supported by the elevating seat plate 9, and bobbin shafts 5, 6 attached to the rotating body 4 in this example at intervals of 180 ° on the circumference. Bobbin 8 mounted on each bobbin shaft 5, 6
A rotation stopping means (not shown) for suddenly stopping the rotation of the full bobbin at a position not in contact with the friction roll 1
It is comprised including.

The godet roll 12 is usually, as shown in FIG.
The bobbin shafts 5 and 6 are shorter than the bobbin shafts, and are installed above the worker's face and rotate at high speed.

The partition member 11 is formed in a rod shape in this embodiment. When the number of supply yarns and the number of traverse devices 3 are n, (n-1) partition members 11 are prepared and arranged at positions corresponding to adjacent traverse devices 3.

In this embodiment, the operation means of the partition member 11 includes an operation plate on which the partition member 11 is mounted, an electromagnet for urging the partition member 11 to advance through the operation plate, and a partition member 11 through the operation plate. And a spring for biasing the spring backward, but these components are omitted in the drawings. Then, this operating means causes the partition member 11 to advance at the time of automatic winding switching, and starts feeding each supply yarn Y to the traverse device 3 corresponding to the supply yarn Y from the time when the supply yarn Y is supplied to the traverse device 3 corresponding to the supply yarn Y. Until is captured, the partition member 11 is inserted between the supply yarns Y adjacent in the arrangement direction of the traverse device 3. The operating means is the supply yarn Y
After the supply yarns Y are captured by the traverse device 3 corresponding to the above, the partition member 11 is retracted, and the partition members 11 are removed from between the supply yarns Y adjacent to each other in the arrangement direction of the traverse device 3.

Note that the partition member inserted between the supply yarns Y is
This is indicated by reference numeral 11 'in FIGS. 3 (a), (b) and FIG.

The yarn position regulating device 7 is formed of metal, ceramic, plastic, or the like, and is particularly finished on its surface with a mirror surface chrome plating, satin finish or the like in order to make the supply yarn Y slippery. As shown in FIG. 1, FIG. 4, and FIG. 5, the yarn position regulating device 7 is provided with a yarn joining portion formed by two inclined surfaces having opposite inclinations. The opening of the inclined surface is formed wider than the traverse width. Also,
The threading portion formed by the inclined surface is provided corresponding to the traverse device 3. Further, the yarn position regulating device 7 is disposed upstream of the traverse device 3 in the flow direction of the supply yarn Y. Then, at the time of automatic winding switching, as shown by reference numeral 7 'in FIG. 3A, the yarn position regulating device 7 is operated to protrude forward from the arrangement surface of the traverse device 3, and as shown in FIG. The supply yarn Y is released from the traverse device 3 for a certain time while regulating the position of the supply yarn Y at the intersection 7 ″ of the two opposite inclined surfaces.

As shown in FIG. 6, a traverse guide 3 'formed substantially in a horseshoe shape is used for the traverse device 3. The traverse devices 3 are arranged corresponding to the number of supply yarns Y. And this traverse device 3
The traverse guide 3 ′ reciprocates in a direction parallel to the friction roll 1 in a state where the supply yarn Y is captured by the traverse guide 3 ′ to traverse the supply yarn Y.

The friction roll 1 comes into contact with an empty bobbin 8 or a roll 8 ′ that has moved via the bobbin shafts 5 and 6, and rotates the bobbin 8 or the roll 8 ′.

The rotating body 4 rotates by 180 ° in this embodiment,
The bobbin 8 mounted on the bobbin shafts 5 and 6 and the bobbin 8
The wound ball 8 ′ wound around the friction roll 1 is selectively moved to a position where it comes into contact with the friction roll 1 and a position where it does not come into contact.

Bobbins 8 are mounted on the bobbin shafts 5 and 6, respectively, in correspondence with the number of supply yarns Y. As can be seen by comparing FIG. 1 showing the embodiment of the present invention with FIG. 7 showing the prior art, the bobbin 8 is not provided with the blade cut 8 ″ in the present invention. The bobbin 8 mounted on the bobbin shafts 5 and 6 rotates by contacting the friction roll 1.

As the rotation stopping means, a mechanical brake, an electromagnetic brake, or a brake combining these is used. The rotation stopping means moves the bobbin shafts 5, 6 when the full bobbin around which the supply yarn Y is wound by the specified amount moves to a position where the full bobbin does not contact the friction roll 1 as shown in FIG. The rotation of the full bobbin is completely stopped instantaneously, for example, for several seconds.

Next, an example of the method of the present invention will be described in relation to the operation of the automatic winding switching device of the above embodiment.

First, for example, an empty bobbin 8 mounted on the bobbin shaft 5
To a position where it comes into contact with the friction roll 1,
The supply yarn Y is wound around the bobbin 8 by a conventional method until a specified amount is obtained.

During that time, an empty bobbin 8 is mounted on another bobbin shaft 6 in advance, and is kept on standby. Note that the bobbin 8 has no blade cut.

After the supply yarn Y is wound around the bobbin 8 mounted on the bobbin shaft 5 by a predetermined amount, the rotating body 4 is rotated by 180 °, and the third
As shown in FIG. 1B, the full bobbin is moved to a position where it does not come into contact with the friction roll 1 via the bobbin shaft 5, and at the same time, the waiting empty bobbin 8 is moved to another bobbin shaft 6
Is moved to a position where it comes into contact with the friction roll 1 via.

Next, as shown in FIG. 3 (a), the yarn position regulating device 7 is operated to release the supply yarn Y from the traverse device 3.

In this state, as shown in FIG. 4, the supply yarn Y has an intersection 7 ″ between two inclined surfaces having opposite inclinations of the yarn position regulating device 7.
, And is wound up on the full bobbin side while being released from the traverse device 3.

Next, the rotation stop means of the bobbin 8 is actuated to stop the rotation of the full bobbin abruptly. Thereby, the supply yarn Y slackens between the empty bobbin 8 of the bobbin shaft 6 and the full bobbin of the bobbin shaft 5. At this time, the empty bobbin 8 of the bobbin shaft 6 is rotating, and the full bobbin of the bobbin shaft 5 stops rotating, and the elastic yarn is markedly compared to general synthetic fibers such as general nylon and polyester. The feed yarn Y, which is an elastic yarn, does not go to the full bobbin side due to a high coefficient of friction and a characteristic that it is easy to wind around the rotating empty bobbin 8.
Immediately adheres to and wraps around the empty bobbin 8. Then, since the empty bobbin 8 contacts the friction roll 1 and rotates, and the full bobbin does not rotate, the supply yarn Y is torn between the empty bobbin 8 and the full bobbin. As a result, even if no blade cut is made, the supply yarn Y
Can be switched.

After switching the winding of the supply yarn Y to the empty bobbin 8 of the bobbin shaft 6, the operation of the partition member 11 causes the third operation to be performed.
As shown in FIG. 5 (a) and FIG. 5, the partition member 11 is advanced, the partition member 11 is inserted between the supply yarns Y adjacent in the arrangement direction of the traverse device 3, and then shown in FIG. 3 (b). Thus, the yarn position regulating device 7 is returned to the original position.

As a result, each of the supply yarns Y does not flow to the adjacent traverse device 3 by the action of the partition member 11, and each of the supply yarns Y is reliably captured by the traverse device 3 corresponding to the supply yarn Y. Can be prevented, and the success rate of automatic winding switching can be improved to almost 100%.

After each supply yarn Y is captured by the traverse device 3 corresponding to the supply yarn Y, the partition member 11 is retracted by operating means as shown in FIG. The supply yarn Y is continuously wound on the bobbin 8 of the bobbin shaft 6 until a specified amount is obtained, and a wound body is manufactured.

In the device of the present invention, the partition member 11 is not limited to the rod-shaped member shown in the drawing, but may be a plate-shaped member.

Further, the operation means of the partition member 11 and the rotation stop means of the full bobbin are not limited to those in the above-described embodiment, but may be any as long as they have a desired function.

 Next, specific examples of the present invention will be described.

Example 1 A urethane prepolymer was prepared from 4,4'-cyphenylmethane diisocyanate and polytetramethylene glycol by a conventional method, and a polymer obtained by polymerizing the urethane prepolymer with a coupling agent such as ethylenediamine was dissolved in a solvent. A stock solution of polyurethane having a concentration of about 27% was dry-spun by a conventional method to produce a 40d elastic yarn, and the success rates of automatic switching of the winding of the elastic yarn were compared.
Table 1 shows the conditions for winding and automatic switching, and Table 2 shows the results.

[Effects of the Invention] According to the method of the present invention, the full bobbin on which the supply yarn has been wound up by a predetermined amount is moved to a position where it does not come into contact with the friction roll via the bobbin shaft, and at the same time, the bobbin is previously mounted on another bobbin shaft. Move the waiting empty bobbin to a position where it comes into contact with the friction roll, release the supply yarn from the corresponding traverse device, move it to a position where it comes into contact with the friction roll, and then move it to a position where it does not come into contact with the friction roll The full bobbin is stopped suddenly, the supply yarn is adhered to the empty bobbin and wound, and the empty bobbin is torn off between the full bobbin and the empty bobbin, and the winding is automatically switched, so that there is no blade cut. There is an effect that the automatic winding switching can be surely performed using the bobbin. There is an advantage that it can be reduced and the strength of the bobbin can be improved.

Further, according to the method of the present invention, adjacent to the traverse device corresponding to the supply yarn in the arrangement direction of the traverse device from the time when the supply yarn is started to be guided to the traverse device corresponding to the supply yarn. A partition is inserted between the supply yarns, and after each supply yarn is captured by the traverse device corresponding to the supply yarn, the partition is removed and the supply yarn wound around the empty bobbin is continuously wound. Movement can be completely prevented, so that the success rate of automatic switching of winding of the elastic yarn can be improved to almost 100%.

Further, according to the apparatus of the present invention, the full bobbin on which the supply yarn has been wound up by the specified amount is moved to a position where the full bobbin does not come into contact with the friction roll via the bobbin shaft, and the bobbin is previously mounted on another bobbin shaft and is on standby. Means for moving the empty bobbin to a position where it contacts the friction roll, then suddenly stopping the rotation of the full bobbin at a position where it does not contact the friction roll, and inserting the empty bobbin between the supply yarns adjacent in the arrangement direction of the traverse device. Between the supply yarn adjacent to the partition member installed removably and the time when the supply yarn is started to be guided to the traverse device corresponding to the supply yarn until the supply yarn is captured by the traverse device corresponding to the supply yarn. After the partition member is inserted and each supply yarn is captured by the traverse device corresponding to the supply yarn, the partition member is removed from between adjacent supply yarns. Since it is provided a work unit, an effect that may be performed accurately the present invention method.

[Brief description of the drawings]

1 to 6 show an example of an apparatus for carrying out the method of the present invention. FIG. 1 is a perspective view, FIG. 2 is a front view,
3 (a) to 3 (c) are operation explanatory views as viewed from the front, respectively, FIG. 4 is an operation explanatory view of the yarn position regulating device, FIG. 5 is a perspective view showing an operation state of the partition member, FIG. 6 is a view schematically showing a traverse guide constituting a traverse device, FIG. 7 is a perspective view showing a conventional technique of an automatic switching winder, FIG. 8 is a front view thereof, and FIG. (A)-(e)
It is operation | movement explanatory drawing seen from the front. 1 ... friction roll, 3 ... traverse device, 4
... Rotating body, 5, 6... Bobbin shaft, 7... Thread position regulating device, 8... Bobbin, 8 ′.

Claims (3)

(57) [Claims] A plurality of bobbin shafts are mounted at intervals on the circumference of a rotating body, and empty bobbins are mounted on each bobbin shaft in accordance with the number of supply yarns as elastic yarns. The ball is brought into contact with the friction rolls and driven to rotate, the supply yarns are traversed, the supply yarns are wound on bobbins corresponding to the supply yarns, and the full bobbins on which the supply yarns are wound by a predetermined amount are passed through the bobbin shaft. At the same time, the empty bobbin mounted on another bobbin shaft and waiting is moved to a position where it comes into contact with the friction roll, and the supply yarn is released from the corresponding traverse device. In the automatic winding switching in which the supply yarn is wound on the empty bobbin moved to the position where the friction roll is brought into contact with the friction roll, the full bobbin is set at a position where it does not come into contact with the friction roll. The rotation of the supply yarn is suddenly stopped, the supply yarn is adhered to the empty bobbin, wound around the bobbin, torn between the full bobbin and the empty bobbin, and then the supply yarn is started to be guided to the traverse device corresponding to the supply yarn. Until the supply yarn is captured by the traverse device corresponding to, the partition is inserted between the supply yarns adjacent in the arrangement direction of the traverse device, and after each supply yarn is captured by the traverse device corresponding to the supply yarn, A method for automatically switching elastic yarn winding, wherein the partition is removed and the supply yarn wound around the empty bobbin is continuously wound. 2. A plurality of bobbin shafts are mounted at intervals on the circumference of the rotating body, and empty bobbins are mounted on each bobbin shaft in accordance with the number of supply yarns as elastic yarns. The ball is brought into contact with the friction rolls and driven to rotate, the supply yarns are traversed, the supply yarns are wound on bobbins corresponding to the supply yarns, and the full bobbins on which the supply yarns are wound by a predetermined amount are passed through the bobbin shaft. At the same time, the empty bobbin mounted on another bobbin shaft and waiting is moved to a position where it comes into contact with the friction roll, and the supply yarn is released from the corresponding traverse device. In the automatic winding switching in which the supply yarn is wound on the empty bobbin moved to the position where the friction roll is brought into contact with the friction roll, the full bobbin is set at a position where it does not come into contact with the friction roll. Rotation stop means for suddenly stopping the rotation of the feeder, a partition member inserted and removed between supply yarns adjacent to each other in the arrangement direction of the traverse device, and starting to guide the supply yarn to the traverse device corresponding to the supply yarn. From the time until the supply yarn is captured by the traverse device corresponding to the supply yarn, the partition member is inserted between the adjacent supply yarns, and after each supply yarn is captured by the traverse device corresponding to the supply yarn. Operating means for removing the partition member from between adjacent supply yarns. 3. A plurality of bobbin shafts are mounted at intervals on the circumference of the rotating body, and empty bobbins are mounted on each bobbin shaft in accordance with the number of supply yarns as elastic yarns. The ball is brought into contact with the friction rolls and driven to rotate, the supply yarns are traversed, the supply yarns are wound on bobbins corresponding to the supply yarns, and the full bobbins on which the supply yarns are wound by a predetermined amount are passed through the bobbin shaft. At the same time, the empty bobbin mounted on another bobbin shaft and waiting is moved to a position where it comes into contact with the friction roll, and the supply yarn is released from the corresponding traverse device. In the method for manufacturing an elastic yarn wound body for winding a supply yarn around an empty bobbin moved to a position where the friction roll is brought into contact with the friction roll, a position where the friction yarn is not in contact with the friction roll. In to suddenly stop the rotation of the full bobbin,
The supply yarn is adhered to the empty bobbin and wound around the bobbin, torn off between the full bobbin and the empty bobbin, and then the supply yarn is supplied to the traverse device corresponding to the supply yarn from the time when the supply yarn is led to the traverse device corresponding to the supply yarn. Until the supply yarns are captured, a partition is inserted between the supply yarns adjacent in the arrangement direction of the traverse device, and after each supply yarn is captured by the traverse device corresponding to the supply yarn, the partition is removed, and the empty space is removed. A method for producing an elastic wound thread body, characterized in that a supply thread wound around a bobbin is continuously wound.