阅读说明：本技术 锁纱装置、自动绕纱机以及自动绕纱方法 (Yarn locking device, automatic yarn winding machine and automatic yarn winding method ) 是由 孔垂信 王国强 佘惠 杨刚 胡广文 于 2019-09-26 设计创作，主要内容包括：本发明公开了一种锁纱装置、自动绕纱机以及自动绕纱方法。该锁纱装置包括锁纱固定机构以及锁纱活动机构,所述锁纱固定机构包括锁纱底座以及呈环形的配合环,所述锁纱底座用于固定安装在自动绕纱机的纱框轴的轴端,所述配合环固定安装在所述锁纱底座上,所述配合环朝外的端面具有相对的两个上纱豁口；所述锁纱活动机构包括活动底座以及磁环,所述磁环连接在所述活动底座上,所述锁纱活动机构能够嵌设于所述配合环内,所述锁纱活动机构通过所述磁环与所述配合环磁性相吸以固定纱线的纱头。该锁纱装置在绕纱过程一直锁住纱线头在纱框轴端处,避免纱线头悬空导致纱线头过长而混乱缠绕在纱框的其他连接部位出现挂纱而无法正常卸纱。(The invention discloses a yarn locking device, an automatic yarn winding machine and an automatic yarn winding method. The yarn locking device comprises a yarn locking fixing mechanism and a yarn locking moving mechanism, wherein the yarn locking fixing mechanism comprises a yarn locking base and an annular matching ring, the yarn locking base is fixedly arranged at the shaft end of a yarn frame shaft of the automatic yarn winding machine, the matching ring is fixedly arranged on the yarn locking base, and the outward end surface of the matching ring is provided with two opposite yarn feeding openings; the yarn locking moving mechanism comprises a moving base and a magnetic ring, the magnetic ring is connected to the moving base, the yarn locking moving mechanism can be embedded in the matching ring, and the yarn locking moving mechanism is magnetically attracted with the matching ring through the magnetic ring to fix yarn ends. This lock yarn device pins the yarn end in yarn frame axle head department all the time at the winding yarn process, avoids the yarn end unsettled to lead to the yarn end overlength and the chaotic winding to appear hanging the yarn and unable normal unloading yarn in other connection positions of yarn frame.)

1. A yarn locking device is characterized by comprising a yarn locking fixing mechanism and a yarn locking moving mechanism, wherein the yarn locking fixing mechanism comprises a yarn locking base and an annular matching ring with magnetism or magnetic conductivity, the yarn locking base is fixedly arranged at the shaft end of a yarn frame shaft of an automatic yarn winding machine, the matching ring is fixedly arranged on the yarn locking base, and the outward end face of the matching ring is provided with at least two opposite yarn feeding openings; the yarn locking moving mechanism comprises a moving base and a magnetic ring, the magnetic ring is connected to the moving base, the yarn locking moving mechanism can be embedded in the matching ring, and the yarn locking moving mechanism is magnetically attracted with the matching ring through the magnetic ring to fix yarn ends.

2. The yarn locking device of claim 1, wherein the end face of the movable base for engaging with the engaging ring is provided with a circular groove, the engaging ring is embedded in the circular groove, and the radial dimension of the movable base is adapted to the engaging ring.

3. The yarn locking device of claim 1, further comprising a yarn locking driving member and a pick-and-place member; the yarn locking driving part is used for being installed on the operating platform, the grabbing and releasing part is installed on the yarn locking driving part and connected with the movable base, and the yarn locking driving part is used for driving the grabbing and releasing part and the yarn locking movable mechanism to move.

4. The yarn locking device of claim 3, wherein the pick-and-place component comprises a pick-and-place air gripper and an air gripper driving member; the pneumatic claw driving piece is installed on the yarn locking driving part and connected with the grabbing and releasing pneumatic claw, the other end face of the movable base is sunken to be provided with a grabbing groove, when the grabbing and releasing pneumatic claw extends into the grabbing groove and the pneumatic claw driving piece drives the grabbing and releasing pneumatic claw to be opened, the grabbing and releasing pneumatic claw tightly grasps the movable base, and when the grabbing and releasing pneumatic claw is folded, the grabbing and releasing pneumatic claw releases the movable base.

5. The yarn locking device of claim 3, wherein the yarn locking driving part is a telescopic cylinder and is arranged on the operating platform and is as high as the reel shaft.

6. The yarn locking device according to any one of claims 1 to 5, wherein a through hole penetrates through the movable base in the axial direction, and the magnetic ring and the movable base are fastened through a fastener penetrating through the magnetic ring and the through hole.

7. The yarn locking device of any one of claims 1 to 5, wherein the mating ring is detachably connected with the yarn locking base, the yarn locking base is provided with an annular groove with an inward concave surface at the end face for connecting the mating ring, and the mating ring is embedded in the annular groove.

8. An automatic yarn winding machine, characterized by comprising an operating platform, a yarn feeding device, a yarn winding device and a yarn locking device according to any one of claims 1 to 7; the yarn feeding device comprises a yarn feeding pneumatic clamp, a pneumatic clamp driving part, a yarn feeding swing rod and a swing rod driving part, the swing rod driving part is installed on the operating platform and connected to the yarn feeding swing rod, and the pneumatic clamp driving part is installed on the yarn feeding swing rod and connected with the yarn feeding pneumatic clamp; the winding device comprises a winding frame, a frame shaft and a winding driving part, the winding driving part is arranged on the operating platform, and the winding frame is connected with the winding driving part through the frame shaft; the yarn locking base of the yarn locking device is fixedly arranged at the shaft end of the yarn frame shaft, and the yarn locking movable mechanism of the yarn locking device is used for being embedded in the matching ring to fix the yarn head of the yarn.

9. An automatic yarn winding method using the automatic yarn winding machine according to claim 8, characterized by comprising the steps of:

the pneumatic clamp driving part drives the upper yarn pneumatic clamp to clamp the yarn head of the yarn, the swing rod driving part drives the upper yarn swing rod to swing so that the upper yarn pneumatic clamp drives the yarn head to move to the end part of the yarn frame shaft, and the yarn locking movable mechanism is embedded in the matching ring to fix the yarn head of the yarn;

a yarn winding driving part of the winding device drives a yarn winding frame shaft to rotate so as to drive the yarn winding frame to rotate for yarn winding;

after the yarn winding is finished, the yarn locking movable mechanism is separated from the matching ring to release the yarn head of the yarn.

10. The automatic winding method according to claim 9, further comprising the steps of: when the yarn locking movable mechanism is embedded in the matching ring, the yarn locking movable mechanism extends into a grabbing groove of a movable base of the yarn locking movable mechanism through a grabbing and releasing air claw of the grabbing and releasing part, an air claw driving part drives the grabbing and releasing air claw to open so as to grab the movable base, the grabbing and releasing part and the yarn locking movable mechanism are driven to move into the matching ring through a yarn locking driving part, and the grabbing and releasing air claw is folded to release the movable base;

when the yarn locking moving mechanism is separated from the matching ring, the grabbing and releasing claw of the grabbing and releasing part extends into the grabbing groove of the moving base of the yarn locking moving mechanism, the air claw driving part drives the grabbing and releasing claw to open to realize grabbing and holding the moving base, and the grabbing and releasing part and the yarn locking moving mechanism are driven by the yarn locking driving part to be far away from the matching ring.

Technical Field

The invention relates to the field of spinning, in particular to a yarn locking device, an automatic yarn winding machine and an automatic yarn winding method.

Background

The existing automatic yarn winding machine adopts an integral yarn locking mechanism in the automatic yarn feeding process, an upper yarn air clamp clamps a yarn end and draws the yarn end to the left front of a yarn winding frame along with the swing of an upper yarn swing rod so that the yarn is just positioned in front of the shaft end of a yarn winding frame, then the integral yarn locking mechanism extends forwards under the action of a telescopic cylinder, a rotatable plastic block arranged on the telescopic cylinder pushes the yarn to move forwards and lock the yarn at the shaft end of the yarn winding frame, then the yarn winding frame starts to rotate to realize the automatic yarn feeding on the yarn winding frame, the yarn locking plastic block is driven by a yarn frame shaft to rotate passively and cannot rotate synchronously with the yarn winding frame shaft, the yarn pressing plastic block is locked at the shaft end for too long time to easily cause the yarn to be torn off, so the integral yarn locking mechanism automatically resets under the action of the telescopic cylinder after the yarn feeding is finished, the yarn pressing plastic block is separated from the shaft end of the yarn winding frame shaft, and the yarn end, the yarn end often appears in the reel rotation process and gets rid of more under the effect of centrifugal force longer and the confusion twines the center pin of reel or other connection positions and leads to can't normally unload the yarn and cause the warning shut down after the yarn winding is ended, influences equipment normal operating, reduces equipment availability factor.

Disclosure of Invention

Therefore, the yarn locking device, the automatic yarn winding machine and the automatic yarn winding method are needed to be provided, wherein the yarn end is always locked at the shaft end of the yarn frame in the yarn winding process, and the problem that the yarn end is overlong due to suspension and is disorderly wound at other connecting parts of the yarn frame to cause yarn hanging and yarn unloading failure is avoided.

A yarn locking device comprises a yarn locking fixing mechanism and a yarn locking moving mechanism, wherein the yarn locking fixing mechanism comprises a yarn locking base and an annular matching ring with magnetism or magnetic conductivity, the yarn locking base is fixedly arranged at the shaft end of a yarn frame shaft of an automatic yarn winding machine, the matching ring is fixedly arranged on the yarn locking base, and the outward end face of the matching ring is provided with at least two opposite yarn feeding openings; the yarn locking moving mechanism comprises a moving base and a magnetic ring, the magnetic ring is connected to the moving base, the yarn locking moving mechanism can be embedded in the matching ring, and the yarn locking moving mechanism is magnetically attracted with the matching ring through the magnetic ring to fix yarn ends.

In one embodiment, the end face of the movable base for matching with the matching ring is provided with a circular groove, the matching ring is embedded in the circular groove, and the radial dimension of the movable base is matched with the matching ring.

In one embodiment, the yarn locking device further comprises a yarn locking driving part and a grabbing and releasing part, the yarn locking driving part is used for being installed on the operating platform, the grabbing and releasing part is installed on the yarn locking driving part and connected with the movable base, and the yarn locking driving part is used for driving the grabbing and releasing part and the yarn locking movable mechanism to move.

In one embodiment, the yarn locking driving part is arranged on the yarn locking driving part, the yarn locking driving part is connected with the yarn locking driving part, the other end face of the movable base is provided with a concave grabbing groove, when the yarn locking driving part extends into the grabbing groove and the air claw driving part drives the yarn locking driving part to open, the yarn locking driving part clamps the movable base through the yarn locking driving part, and when the yarn locking driving part is folded, the yarn locking driving part releases the movable base through the yarn locking driving part.

In one embodiment, the yarn locking driving part is a telescopic cylinder and is used for being installed on the operating platform and is arranged at the same height as the reel shaft.

In one embodiment, a through hole penetrates through the movable base along the axial direction, and the magnetic ring and the movable base are fastened through a fastener penetrating through the magnetic ring and the through hole.

In one embodiment, the axial length of the yarn locking moving mechanism is greater than or equal to the axial length of the mating ring.

In one embodiment, the matching ring is detachably connected with the yarn locking base, the yarn locking base is used for connecting an annular groove with an inward concave surface on the end face of the matching ring, and the matching ring is embedded in the annular groove.

An automatic yarn winding machine comprises an operation platform, a yarn feeding device, a winding device and a yarn locking device, wherein the yarn feeding device comprises a yarn feeding air clamp, an air clamp driving part, a yarn feeding swing rod and a swing rod driving part; the winding device comprises a winding frame, a frame shaft and a winding driving part, the winding driving part is arranged on the operating platform, and the winding frame is connected with the winding driving part through the frame shaft; the yarn locking base of the yarn locking device is fixedly arranged at the shaft end of the yarn frame shaft, and the yarn locking movable mechanism of the yarn locking device is used for being embedded in the matching ring to fix the yarn head of the yarn.

An automatic yarn winding method comprises the following steps:

the pneumatic clamp driving part drives the upper yarn pneumatic clamp to clamp the yarn head of the yarn, the swing rod driving part drives the upper yarn swing rod to swing so that the upper yarn pneumatic clamp drives the yarn head to move to the end part of the yarn frame shaft, and the yarn locking movable mechanism is embedded in the matching ring to fix the yarn head of the yarn;

a yarn winding driving part of the winding device drives a yarn winding frame shaft to rotate so as to drive the yarn winding frame to rotate for yarn winding;

after the yarn winding is finished, the yarn locking movable mechanism is separated from the matching ring to release the yarn head of the yarn.

In one embodiment, the method further comprises the following steps: when the yarn locking movable mechanism is embedded in the matching ring, the yarn locking movable mechanism extends into a grabbing groove of a movable base of the yarn locking movable mechanism through a grabbing and releasing air claw of the grabbing and releasing part, an air claw driving part drives the grabbing and releasing air claw to open so as to grab the movable base, the grabbing and releasing part and the yarn locking movable mechanism are driven to move into the matching ring through a yarn locking driving part, and the grabbing and releasing air claw is folded to release the movable base;

when the yarn locking moving mechanism is separated from the matching ring, the grabbing and releasing claw of the grabbing and releasing part extends into the grabbing groove of the moving base of the yarn locking moving mechanism, the air claw driving part drives the grabbing and releasing claw to open to realize grabbing and holding the moving base, and the grabbing and releasing part and the yarn locking moving mechanism are driven by the yarn locking driving part to be far away from the matching ring.

The yarn locking device can always lock the yarn end at the shaft end of the yarn frame in the yarn winding process, and the problem that the yarn end is too long due to suspension and is disorderly wound on other connecting parts of the yarn frame to hang yarn, so that yarn cannot be normally unloaded is avoided. The matching ring is installed and fixed at the front end of the yarn locking base, and the yarn locking fixing mechanism consisting of the iron matching ring and the aluminum yarn locking base can ensure that enough magnetic force is attracted between the yarn locking moving mechanism and the yarn locking fixing mechanism and cannot be separated and reset due to too large magnetic force.

The yarn locking device provided by the invention has the advantages that the yarn locking movable mechanism is guided and protected by arranging the matching ring, and potential safety hazards caused by accidental falling and flying of the yarn locking movable mechanism in the high-speed rotation process of the yarn winding frame are avoided.

According to the yarn locking device, the yarn feeding openings which are oppositely arranged are formed in the matching ring at the front end of the yarn locking base, so that yarn breakage caused by shearing acting force generated at the edge of the matching ring when the yarn locking movable mechanism pushes yarns to move towards the direction of the yarn locking fixing mechanism in the yarn feeding process is avoided.

The matching ring of the yarn locking device is detachably connected with the yarn locking base, the end face of the yarn locking base, which is used for connecting the matching ring, is provided with an annular groove with an inward concave surface, the matching ring is embedded in the annular groove, and the annular groove is used for installing and fixing the matching ring.

One end face of a movable base of the yarn locking device is provided with a grabbing groove used for grabbing a gas releasing claw, the other end face of the movable base is provided with a circular groove used for installing a magnetic ring, and a through hole is formed in the center of the movable base and can be used for inserting a fastener screw to lock and fix the magnetic ring.

The yarn locking device provided by the invention realizes the improvement of the automation degree of yarn locking by arranging the yarn locking driving part and the grabbing and releasing part.

The automatic yarn winding machine disclosed by the invention realizes the automation of yarn winding and always locks the yarn end at the shaft end of the yarn frame in the yarn winding process, so that the problem that the yarn end is too long due to suspension and is disorderly wound on other connecting parts of the yarn frame to hang yarn, and the yarn cannot be normally discharged is avoided. Specifically, the upper yarn air clamp clamps a yarn end and pulls the yarn end to the front of a winding frame along with the swinging of an upper yarn swing rod so that the yarn is just positioned in front of a shaft end of the yarn frame shaft, then the yarn locking device extends forwards under the action of a yarn locking driving part, a yarn grabbing and releasing air clamp grabbing and locking movable mechanism arranged on the yarn locking driving part moves forwards to push the yarn to move forwards and be attached to a yarn locking fixing mechanism arranged at the shaft end of the yarn frame shaft, the yarn locking movable mechanism and the yarn locking fixing mechanism attract and lock the yarn end at the shaft end of the central shaft of the winding frame under the action of magnetic force, then two claws of the grabbing and releasing air claws simultaneously draw together towards the center to separate from the yarn locking movable mechanism, the grabbing and releasing air claw resets under the action of the yarn locking driving part, and then the winding frame rotates to realize the automatic yarn feeding onto the yarn frame. Because in the winding process, the movable yarn locking block is always attracted on the yarn locking fixing mechanism, and the yarn end is always fixed, the yarn cannot be wound on other connecting parts of the yarn frame in a disordered manner, yarn hanging is avoided, the yarn can be normally unloaded, the alarm stop caused by yarn hanging is avoided, the normal operation of equipment is ensured, and the use efficiency of the equipment is improved.

Drawings

Fig. 1 is a schematic view of an automatic yarn winding machine according to an embodiment of the present invention;

FIG. 2 is a schematic view of a part of the mechanism of the automatic winder shown in FIG. 1;

FIG. 3 is a schematic view of a yarn locking fixing mechanism of the yarn locking device in the automatic yarn winding machine shown in FIG. 1;

FIG. 4 is a front view of a yarn locking moving mechanism of the yarn locking device in the automatic yarn winding machine shown in FIG. 1;

FIG. 5 is a rear view of the yarn locking activating mechanism shown in FIG. 3;

fig. 6 is a schematic view showing a state where the yarn end of the yarn is locked when the automatic yarn winding machine shown in fig. 1 winds the yarn.

Description of the reference numerals

10: an automatic yarn winding machine; 100: an operating platform; 200: a yarn feeding device; 210: yarn feeding air clamping; 220: an air clamp driving part; 230: a yarn feeding swing rod; 240: a swing link driving part; 300: a winding device; 310: a yarn winding frame; 320: a reel shaft; 400: a yarn locking device; 410: a yarn locking and fixing mechanism; 411: a yarn locking base; 412: matching rings; 4121: opening the upper yarn; 420: a yarn locking moving mechanism; 421: a movable base; 4211: grabbing the groove; 4212: a through hole; 422: a magnetic ring; 430: a yarn locking driving member; 440: a pick-and-place component; 441: a gas releasing claw is grabbed; 442: a pneumatic claw driving member; 450: a yarn locking bracket; 500: a control device; 20: a yarn.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, an embodiment of the present invention provides an automatic yarn winding machine 10, which includes an operation platform 100, a yarn feeding device 200, a yarn winding device 300, a yarn locking device 400, and a control device 500.

Referring to fig. 1, the yarn feeding device 200 includes a yarn feeding air clamp 210, an air clamp driving part 220, a yarn feeding swing link 230, and a swing link driving part 240. The swing link driving part 240 is installed on the operation platform 100 and connected to the upper yarn swing link 230, and the air clamp driving part 220 is installed on the upper yarn swing link 230 and connected to the upper yarn air clamp 210. The air clamp driving part 220 and the swing rod driving part 240 are electrically connected with the control device 500.

Referring to fig. 1 and 2, the winding device 300 includes a winding frame 310, a frame shaft 320, and a winding driving part. The yarn winding driving part is installed on the operation platform 100, and the yarn winding frame 310 is connected with the yarn winding driving part through a frame shaft 320. The yarn winding driving part is electrically connected to the control device 500.

Referring to fig. 3 and 4, the yarn locking device 400 includes a yarn locking fixing mechanism 410 and a yarn locking moving mechanism 420.

The yarn locking fixing mechanism 410 includes a yarn locking base 411 and a mating ring 412 having a ring shape and magnetic or magnetic permeability. The yarn locking base 411 is fixedly installed at the shaft end of the yarn frame shaft 320 of the automatic yarn winding machine 10, the matching ring 412 is fixedly installed on the yarn locking base 411, the outward end surface of the matching ring 412 is provided with at least two opposite yarn feeding notches 4121, and as shown in fig. 3, the number of the yarn feeding notches 4121 is two. The yarn locking device 400 of the invention prevents the yarn from being broken due to the shearing acting force generated at the edge of the matching ring 412 when the yarn locking moving mechanism 420 pushes the yarn 20 to move towards the yarn locking fixing mechanism 410 in the yarn locking process by arranging the yarn locking notch 4121 which is oppositely arranged on the matching ring 412 at the front end of the yarn locking base 411.

The yarn locking moving mechanism 420 includes a moving base 421 and a magnetic ring 422. The magnetic ring 422 is connected to the movable base 421 as shown in fig. 4. The yarn locking moving mechanism 420 can be embedded in the matching ring 412, and the yarn locking moving mechanism 420 is magnetically attracted with the matching ring 412 through the magnetic ring 422 to fix the yarn end of the yarn 20. The yarn locking device 400 of the invention realizes the guiding and protecting functions of the yarn locking movable mechanism 420 by arranging the matching ring 412, and avoids the potential safety hazard caused by the accidental falling and flying off of the yarn locking movable mechanism 420 in the high-speed rotation process of the yarn winding frame 310.

Further, the end surface of the movable base 421 for matching with the matching ring 412 has a circular groove, the matching ring 412 is embedded in the circular groove, and the radial dimension of the movable base 421 is matched with the matching ring 412.

Further, the yarn locking device 400 further comprises a yarn locking driving part 430 and a grabbing and releasing part 440. The yarn locking driving component 430 is used for being installed on the operation platform 100, the grabbing and releasing component 440 is installed on the yarn locking driving component 430 and connected with the movable base 421, and the yarn locking driving component 430 is used for driving the grabbing and releasing component 440 and the yarn locking movable mechanism 420 to move. The yarn locking driving part 430 is electrically connected with the control device 500. The yarn locking device 400 of the invention realizes the improvement of the automation degree of yarn locking by arranging the yarn locking driving part 430 and the grabbing and releasing part 440.

Further, pick and place unit 440 includes a pick and place gas claw 441 and a gas claw driving member 442. Pneumatic claw drive 442 is mounted on yarn lock drive 430 and is connected to gripper and releaser claw 441. Referring to fig. 5, a grabbing groove 4211 is recessed in the other end surface of the movable base 421, when the gas releasing claw 441 extends into the grabbing groove 4211 and the gas claw driving element 442 drives the gas releasing claw 441 to open, the gas releasing claw 441 grabs the movable base 421, and when the gas releasing claw 441 is closed, the gas releasing claw 441 releases the movable base 421. Is electrically connected with the control device 500 and is electrically connected with the control device 500. One end face of the movable base 421 of the yarn locking device 400 is provided with a grabbing groove 4211 for grabbing the air releasing claw 441, the other end face of the movable base 421 is provided with a circular groove for installing the magnetic ring 422, the center of the movable base 421 is provided with a through hole 4212, and a fastener screw can be inserted to lock and fix the magnetic ring 422.

Further, the yarn locking driving part 430 is a telescopic cylinder. The yarn locking driving member 430 is installed on the operation platform 100 and is disposed at the same height as the reel shaft 320.

Preferably, the yarn locking device 400 further comprises a yarn locking bracket 450, the yarn locking bracket 450 is mounted on the operation platform 100, and the yarn locking driving part 430 is arranged on the yarn locking bracket 450.

Further, a through hole 4212 is perforated in the movable base 421 in the axial direction. The magnetic ring 422 and the movable base 421 are fastened by the fasteners penetrating through the magnetic ring 422 and the through holes 4212.

Further, the axial length of the locking yarn moving mechanism 420 is greater than or equal to the axial length of the mating ring 412.

Further, the fitting ring 412 is detachably connected to the yarn locking base 411. Specifically, the end face of the yarn locking base 411 for connecting the mating ring 412 has an annular groove with an inward concave surface, and the mating ring 412 is fitted in the annular groove. The matching ring 412 of the yarn locking device 400 is detachably connected with the yarn locking base 411, the end face of the yarn locking base 411, which is used for connecting the matching ring 412, is provided with an annular groove with an inward concave surface, the matching ring 412 is embedded in the annular groove, and the annular groove is used for installing and fixing the matching ring 412.

The yarn locking device 400 can lock the 20 ends of the yarns at the end of the yarn frame shaft 320 all the time in the yarn winding process, and avoid the problem that the 20 ends of the yarns are suspended to cause overlong yarn 20 ends and disordered yarn winding at other connecting parts of the yarn frame to cause yarn hanging and abnormal yarn unloading. The matching ring 412 of the invention is installed and fixed at the front end of the yarn locking base 411, and the yarn locking fixing mechanism 410 consisting of the iron matching ring 412 and the aluminum yarn locking base 411 can ensure that enough magnetic force is attracted between the yarn locking moving mechanism 420 and the yarn locking fixing mechanism 410 and the yarn locking moving mechanism cannot be separated and reset due to too large magnetic force.

An embodiment of the present invention further provides an automatic yarn winding method, including the steps of:

referring to fig. 1, the pneumatic clamp driving part 220 drives the upper yarn pneumatic clamp 210 to clamp the yarn end of the yarn 20, the swing link driving part 240 drives the upper yarn swing link 230 to swing so that the upper yarn pneumatic clamp 210 drives the yarn end to move to the end of the yarn frame shaft 320, and the yarn locking movable mechanism 420 is embedded in the mating ring 412 to fix the yarn end of the yarn 20, as shown in fig. 6.

The winding driving part of the winding device 300 drives the yarn frame shaft 320 to rotate so as to drive the yarn frame 310 to rotate for winding yarn.

After the yarn winding is finished, the yarn locking movable mechanism 420 is separated from the fitting ring 412 to release the end of the yarn 20.

Further, referring to fig. 2, when the yarn locking movable mechanism 420 is embedded in the mating ring 412, the air claw driving member 442 drives the air claw 441 to open to grip the movable base 421 by the air claw 441 of the gripping and releasing member 440 extending into the gripping groove 4211 of the movable base 421 of the yarn locking movable mechanism 420, and the gripping and releasing member 440 and the yarn locking movable mechanism 420 are driven by the yarn locking driving member 430 to move into the mating ring 412, so that the gripping and releasing air claw 441 is closed to release the movable base 421;

when the yarn locking movable mechanism 420 is separated from the matching ring 412, the air claw driving piece 442 drives the air claw 441 to open to realize the clamping of the movable base 421 through the air claw 441 of the clamping part 440 extending into the clamping groove 4211 of the movable base 421 of the yarn locking movable mechanism 420, and the clamping part 440 and the yarn locking movable mechanism 420 are driven to move away from the matching ring 412 through the yarn locking driving piece 430.

The automatic winding machine 10 realizes the automation of winding yarn and always locks the 20 ends of the yarn at the end of the yarn frame shaft 320 in the winding process, thereby avoiding the problem that the 20 ends of the yarn are suspended to cause the overlong of the 20 ends of the yarn and the yarn is disorderly wound at other connecting parts of the yarn frame to hang and the yarn can not be normally unloaded. Specifically, the upper yarn clamp 210 clamps the yarn 20 head, pulls the yarn 20 head to the front of the winding frame 310 along with the swing of the upper yarn swing rod 230 so that the yarn 20 is just in front of the shaft end of the frame shaft 320, then the yarn locking device 400 is extended forwards under the action of the yarn locking driving part 430, the yarn locking and releasing clamp yarn grabbing and locking movable mechanism 420 arranged on the yarn locking driving part 430 moves forwards to push the yarn 20 to move forwards to be attached to the yarn locking fixing mechanism 410 arranged at the axial end of the yarn frame shaft 320, under the action of magnetic force, the yarn locking moving mechanism 420 and the yarn locking fixing mechanism 410 attract and lock the end of the yarn 20 at the shaft end position of the central shaft of the yarn winding frame 310, then the two claws of the air release claw 441 are simultaneously closed to the center to separate from the yarn locking moving mechanism 420, under the action of the yarn locking driving component 430, the air-releasing claw 441 is in a reciprocating position, and then the yarn frame 310 is rotated to automatically load the yarn 20 onto the yarn frame. Because in the winding process, the movable yarn locking block is always attracted on the yarn locking fixing mechanism 410, and the 20 ends of the yarns are always fixed, the yarns cannot be wound on other connecting parts of the yarn frame in a disordered manner, yarn hanging is avoided, the yarns 20 can be normally unloaded, the alarm stop caused by yarn hanging is avoided, the normal operation of the equipment is ensured, and the use efficiency of the equipment is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.