JPH06321429A - Yarn switching method and device thereof in yarn line winding device - Google Patents

Abstract

PURPOSE:To provide a yarn switching method and device thereof in a yarn line winding device which can conduct yarn switching easily without feeling a fear of a traveling yarn line being cut off or mixed, during its operation, without making surroundings dirty, and requiring worker's much labor and time. CONSTITUTION:For yarn switching of a winding tube T around, which a fixed amount of yarn line Y is wound to a new winding T by making it come off winding cradles 23L, 23R, the traveling yarn line Y is moved to one end side of the winding cradles 23L, 23R, and is delivered positively by a delivery roller 35 mounted on this side of one end side of the winding cradles 23L, 23R to suck the traveling yarn line Y by means of an air sucking device 53. After cutting off the yarn line Y between the winding cradles 23L, 23R and the air sucking device 53, the sucked traveling yarn line Y is engaged with the flange 25R of the winding cradle 23R by a yarn engagement bar 31 to wind the yarn line Y around the new winding tube T.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn switching method and device in a yarn winding device for switching yarns when the number of yarns wound on a winding tube reaches a certain amount.

[0002]

2. Description of the Related Art Conventionally, for example, a temporary twisted yarn which has been crimped by a temporary twisting machine is wound around a winding tube of a yarn winding device. In this yarn winding device, the winding tube is gripped by a winding flange rotatably supported by a winding cradle, and the winding tube is brought into contact with a rotating take-up roller. Is designed to be rotated. The provisional twisted yarn is wound around the winding tube by winding the yarn end of the running provisional twisted yarn around the rotating winding tube.

When the temporary twist yarn wound on the winding tube is wound by a certain amount, it is replaced with the next empty winding tube. At this time, the yarn is switched by cutting the running yarn end wound on the winding tube and winding it around a waist roller provided in the vicinity of the winding cradle. Then, while being wound on the waist roller, remove the winding tube wound a certain amount from the winding flange, hold a new empty winding tube on the winding flange, and then, for example, with a thread hook bar, Thread switching is performed by hooking a running temporary twisted yarn wound around a roller on a winding flange to cut the yarn end of the temporary twisted yarn and winding it around a new winding tube.

[0004]

By the way, during the conventional thread switching described above, the running temporary twisting thread is once wound around the waist roller. For this reason, the temporary twisted yarn wound around the waist roller is removed by a worker who cuts the yarn every day using a cutter after switching the yarn. As a result, when the wound thread (discarded thread) wound around the waist roller is cut with a cutter or the like, the cut yarns come apart and become entangled in the running temporary twisting thread, cutting the running temporary twisting thread and cutting the thread. There is a risk that it may break or be wound together with the temporary twisting yarn that is running.

Further, although the cut yarns are collected by the operator, there is a problem that the loosened yarns fall onto parts of the temporary twisting machine, the floor or the like to stain the surroundings. Further, since the worker cuts the cut yarn with a cutter or the like, there is a problem that it takes time and a considerable amount of time to completely remove it from the waist roller.

In order to solve the above problems, an object of the present invention is to eliminate the risk of cutting or mixing a running yarn, not to pollute the surroundings, and to take labor and time for an operator. It is an object of the present invention to provide a yarn switching method and its device in a yarn winding device that can easily perform yarn switching.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a running method when a winding tube wound with a certain amount of yarn is removed from a winding cradle and a thread is switched to a new winding tube. The yarn is moved closer to one end of the take-up cradle, and is positively fed by a feed roller provided on the front side of the take-up cradle at one end, and the traveling yarn is sucked by an air suction device, and then the take-up cradle is used. After cutting the yarn between the air suction devices, the drawn traveling yarn is hooked on the flange of the winding cradle by a yarn hooking bar to wind the yarn on a new winding tube. It is a yarn switching method in a winding device.

Further, the present invention relates to a yarn winding device for winding a running yarn by bringing a winding tube held by a winding cradle into contact with a rotatable takeup roller, the takeup roller comprising: Provided between the take-up roller and the yarn guide guide, which is provided on the front side of the take-up tube to guide the running yarn wound on the take-up tube and is movable in the left-right direction when the yarn is switched, and An air suction device provided on one end side of the winding cradle for sucking the traveling yarn when the yarn is switched, and a yarn pulling unit provided on the yarn guide guide for bringing the traveling yarn to the one end side of the winding cradle when the yarn is switched. A member, a cutting device that is provided in the yarn guide, and that cuts the yarn between the air suction device and the winding tube when the yarn is switched, A feeding roller that positively feeds the traveling yarn when the traveling yarn is brought close to one end of the winding tube by a member, and the traveling yarn that is sucked by the air suction device is wound around the winding tube. The yarn switching device of the yarn winding device is provided with a yarn hooking bar which is hooked on one end of the flange of the take-up cradle and wound around the take-up tube.

[0009]

By adopting the yarn switching method and device in the yarn winding device of the present invention, the running yarn is wound by the winding tube held by the flange of the winding cradle and guided by the yarn guide. To be Then, when a certain amount of yarn is wound around the winding tube, the yarn guide guide moves in one direction in the left-right direction, and the traveling yarn is wound at one end of the winding cradle by the yarn pulling member provided on the yarn guide guide. When it is moved to the side, the sending roller rotates to send out the running yarn, and at the same time, the air suction device is operated to suck the running yarn. Then, the yarn between the take-up tube and the air suction device is cut by the cutting device provided in the yarn guide. Further, the running yarn that is sucked by the air suction device is hooked on one end side of the flange of the winding cradle that holds the new winding tube by the yarn hooking cover, so that the running yarn is wound around the new winding tube. Thread switching is performed.

When the yarn is switched, the traveling yarn is automatically sucked by the air suction device and the yarn is switched. Therefore, since the conventional waist roller is not used, the traveling yarn may be cut. , The cut yarn will not be mixed with the traveling yarn. Further, since the cut yarn is sucked by the air suction device, the cut yarn does not stain the surroundings and the work of the operator is further facilitated.

[0011]

Embodiments of the present invention will be described in detail below with reference to the drawings.

Referring to FIGS. 1 and 2, the yarn winding device 1 is provided with a plurality of upright frames 3 (only part of which is shown in FIG. 1). A plurality of stages (only one stage is shown in FIG. 1) of horizontal frames 5 are attached between them with a plurality of bolts.

On the front side (right side in FIG. 1) of the horizontal frame 5, a support frame 7 extending in the left-right direction (direction orthogonal to the paper surface in FIG. 1) is attached. A rotatable take-up roller shaft 11 extending in the left-right direction is supported by the support frame 7 via a bracket 9. A plurality of take-up rollers 13 are fitted on the take-up roller shaft 11 in the left-right direction at appropriate intervals.

A bracket 15 is attached by a plurality of bolts at a position corresponding to each take-up roller 13 on the front side (right side in FIG. 1) of the support frame 7. A traverse device 17 is provided on the bracket 15. The traverse device 17 traverses the running yarn in the left-right direction and traverses the yarn. The specific configuration is already known, and therefore a detailed description thereof will be omitted.

A bracket 19 extending in the left-right direction is integrated on the horizontal frame 5, and a rotatable cradle rotating shaft 21 extending in the left-right direction is supported on an upper portion of the bracket 19. The rear portion of each pair of take-up cradle 23L (23R) is fitted in a position corresponding to the take-up roller 13 on the rotary shaft 21 for cradle, and the take-up cradle 23L, 23L.
On the front side of R, flanges 25L and 25R for detachably sandwiching the take-up tube T are rotatably and detachably fitted.

A bracket arm 27 is attached to the front end of the bracket 15 (right side in FIG. 1) on the right end side of each take-up roller 13 by a plurality of bolts. On the rear side (left side in FIG. 1) of the bracket arm 27, a rotatable rotary shaft 2 extending in the left-right direction is provided.
9 are supported. The thread hook bar 3 is attached to the rotary shaft 29.
The rear part of 1 is fitted.

A rotatable rotary shaft 33 extending in the left-right direction is supported by the bracket arm 27, and a feed roller 35 is fitted on the right end side of the rotary shaft 33 and on the feed roller 35. A rubber roller 39 is mounted on this via a bracket 37 supported by the bracket arm 27.

A rotatable yarn guide guide 41 extending in the left-right direction is supported at the front end of the bracket arm 27, and the traveling yarn is brought close to the right end at the left end side of the yarn guide guide 41 when the yarn is switched. A thread pulling member 43 is provided, and a rear portion of the arm member 45 is integrally provided on the left end side of the thread guide guide 41, and a front portion of the arm member 45 serves as a cutting device. A thread cutting member 47 is provided. On the other hand, the bracket arm 27 is provided with the other thread pressing member 49 as a cutting device.

A support bracket 51 is attached to the lower portion of the bracket arm 27, and an air suction device 53 is provided on the support bracket 51. That is, the blower pipe 55 of the air suction device 53 extends in the left-right direction and is provided on the support bracket 51. The air suction pipe 57 is connected to the blower pipe 55, and the tip of the air suction pipe 57 (upper end). ) Is opened. Moreover, the air suction pipe 57 is provided on the winding cradle 23R side, and is provided between the yarn pressing member 49 and the feeding roller 35.

With the above structure, the winding cradle 23R,
The take-up tube T is rotated at a desired number of revolutions by gripping the take-up tube T between the flanges 25R and 25L attached to the tip of the 23L and bringing it into contact with the rotating take-up roller 13. To be done. For example, a yarn Y that is temporarily twisted on the rotating winding tube T
Will be guided by the guide guide 41, and will be taken up by the take-up tube T via the traverse device 17.

When the yarn Y wound on the winding tube T reaches a constant winding amount (size), the yarn guiding guide 41 is moved to the right in FIG.
Is moved from the position indicated by the solid line to the position indicated by the chain double-dashed line, the running yarn Y is moved to the position indicated by the chain double-dashed line. When the yarn Y is brought close to this state, the feeding roller 35 is rotated, the yarn Y is nipped between the rubber roller 37 and the yarn Y runs, and at the same time, the air suction device 5
3 is operated and the yarn Y is sucked into the suction pipe 55. Further, the arm member 45 moves to the right and the thread breaking member 47 is pressed by the thread pressing member 49 to cut the yarn Y.

The running yarn Y is nipped by the feeding roller 35 and the rubber roller 37 and fed while being sucked by the suction pipe 57.
Take-up cradle 23R, 23L flange 25R, 2
After removing from 5L, a new empty take-up tube T is clamped between the flanges 25R and 25L of the take-up cradle 23R, 23L. Next, the thread hook bar 31 is attached to the rotary shaft 29.
When it is rotated counterclockwise in FIG. 1 with the fulcrum as a fulcrum, the traveling yarn Y on the front side of the feed roller 39 is provided on the tip of the yarn hooking bar 31.
As shown in FIG. 3 by A, the yarn is switched counterclockwise to enter the thread cutting groove of the flange 25R, the traveling yarn Y is wound on a new empty winding tube T, and the yarn switching is performed. Will be done.

As described above, when the yarn Y wound on the take-up tube T is to be switched, the air is sucked by the air suction device 53 instead of being wound around the waist roller as in the conventional case. The yarn can be easily switched. Therefore, there is no possibility of cutting the running yarn Y, mixing of the cut loose yarn Y into the running yarn Y, and contamination of the surroundings. Moreover, it is also possible to eliminate the troublesome work of the operator.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes. In this embodiment, the yarn cutting member 47 and the yarn pressing member 49 are used as the cutting device, but the yarn Y may be cut by thermal cutting with a cutter. The air suction device 53 has been described as an example of sucking air to suck the yarn Y, but it is also possible to eject air to suck the yarn Y.

[0025]

As can be understood from the above description of the embodiments, according to the present invention, since the construction is as described in the claims, when switching yarns, there is a conventional case. By using an air suction device without using a waist roller, it is possible to easily and automatically perform thread switching. Therefore, there is no risk of cutting the running yarn or mixing of the cut yarn into the running yarn, and there is no risk of soiling the surroundings. Moreover, it is eliminated from the troublesome work of the operator.

[Brief description of drawings]

FIG. 1 is a side view of a yarn winding device according to an embodiment of the present invention.

FIG. 2 is a front view with a part omitted in FIG.

FIG. 3 is an explanatory view for explaining a yarn switching operation according to the present invention.

[Explanation of symbols]

 1 thread winding device 13 take-up rollers 23L, 23R winding cradle 25L, 25R flange 31 thread hooking bar 35 delivery roller 37 rubber roller 41 thread guide guide 43 thread pulling member 47 thread cutting member (thread cutting device) 49 thread pressing member 53 Air suction device Y Yarn T Winding tube

Claims (2)

[Claims] 1. When removing a take-up tube wound with a fixed amount of yarn from the take-up cradle and switching the yarn to a new take-up tube, the running yarn is moved toward one end of the take-up cradle and the take-up cradle is used. The feeding roller provided on the front side at one end side of the machine makes the traveling yarn to be sucked by the air suction device, and then the yarn between the winding cradle and the air suction device is cut and then sucked. A yarn switching method in a yarn winding device, wherein the running yarn is hooked on the flange of the winding cradle by a yarn hooking bar and the yarn is wound on a new winding tube. 2. A yarn winding device for winding a traveling yarn by bringing a winding tube held by a winding cradle into contact with a rotatable takeup roller, the yarn winding device being provided in front of the takeup roller. The winding cradle is provided between the take-up roller and the yarn guide, which guides the running yarn to be wound around the take-up tube and is movable in the left-right direction when changing the yarn. An air suction device which is provided at one end side of the yarn suction device for sucking the traveling yarn when the yarn is switched, a yarn pulling member which is provided in the yarn guide and which brings the traveling yarn to the one end side of the winding cradle when the yarn is switched, A cutting device that is provided in the guide and cuts the yarn between the air suction device and the winding tube when the yarn is switched, and the winding tube by the yarn pulling member. Of the flange of the take-up cradle that grips the take-up tube, and the feed roller that positively sends the take-up yarn when the run-on yarn is moved to one end of the A yarn switching device in a yarn winding device, comprising a yarn hooking bar hooked at one end and wound around a winding tube.