CN117623013A - Thread end tightening device, thread tightening mechanism, winding system and thread end tightening method - Google Patents

Abstract

The utility model discloses a thread end screwing device, a thread screwing mechanism, a winding system and a thread end screwing method, wherein the thread end screwing device comprises a thread picking assembly, a first moving mechanism for driving the thread picking assembly to move, a thread breaking mechanism and a first translation mechanism for driving the thread breaking mechanism to translate along a first direction. The first guide wheel is arranged at the wire twisting mechanism and can be effectively matched with the wire breaking mechanism, so that the action of the wire twisting mechanism cannot be influenced by wires between the wire paying-off guide wheel and the wire breaking mechanism, and stable wire twisting is fully ensured.

Description

Thread end tightening device, thread tightening mechanism, winding system and thread end tightening method

Technical Field

The utility model relates to the field of intelligent equipment, in particular to a thread end tightening device, a thread tightening mechanism, a winding system and a thread end tightening method.

Background

The winding machine is used for winding silk thread on the spool, after the silk thread on one spool is fully wound, the silk thread between the paying-off machine and the full spool is cut off or fused, and then the thread end on the full spool is fixed to avoid loosening the silk thread wound on the spool.

In order to realize automatic and effective fixation of the wire ends, a wire end binding simulation robot is disclosed in Chinese patent application number 201921497319.4, and the structure can effectively realize the binding of the wire ends.

But when the thread ends on the full thread wheel are fixed in a binding mode, the thread knots still can be untwisted in the processes of subsequent processing, carrying, transporting and the like, and the stability is required to be improved.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide a thread end tightening device, a thread tightening mechanism, a winding system and a thread end tightening method.

The aim of the utility model is achieved by the following technical scheme:

the thread end tightening device comprises a thread taking-up assembly, a first moving mechanism for driving the thread taking-up assembly to move, a thread breaking mechanism and a first translation mechanism for driving the thread breaking mechanism to translate, wherein the thread twisting mechanism positioned at the front side of the thread breaking mechanism is further arranged at the first translation mechanism, the thread twisting mechanism comprises a frame and a frame moving assembly for driving the frame to translate along a first direction and longitudinally lift, a rotating shaft with an axis extending longitudinally is rotatably arranged on the frame, the rotating shaft is connected with a rotation driving mechanism for driving the rotating shaft to rotate, and the lower end of the rotating shaft is connected with a thread twisting clamping jaw; the frame is further provided with a second translation mechanism, the second translation mechanism is connected with a first guide wheel driven by the second translation mechanism to move along a first direction, the axis of the first guide wheel extends along the first direction, the top of the first guide wheel is not lower than the top of the wire twisting clamping jaw, the first guide wheel can move to the outside of a first side of the wire twisting mechanism, and the first side is the side, close to a wire breaker of the wire breaking mechanism, of the wire twisting mechanism.

Preferably, the frame moving assembly is configured to steplessly raise the frame.

Preferably, the rotating shaft is coaxial with the rotating shaft through a connecting piece, and the upper part of the rotating joint is fixed on the frame.

Preferably, the rotating shaft is provided with a central hole extending along the axial direction of the rotating shaft, a through hole communicated with the central hole is formed on the side wall of the rotating shaft, and a connecting disc is arranged at the lower end of the rotating shaft.

Preferably, the wire twisting clamp claw comprises two C-shaped claw bodies and an opening and closing driving device for driving the two C-shaped claw bodies to open and close.

Preferably, the axis of the rotating shaft passes through the center of the top of the opening and closing driving device, and the frame moving assembly can drive the rotating shaft to move to be opposite to the guide plate of the wire breaking mechanism in the first direction.

Preferably, the first guiding wheel is movable and corresponds to the position of a wire inlet of a wire breaker at the wire breaking mechanism in a first direction, and the top of the first guiding wheel is not lower than the top of the rotary joint.

Preferably, the inner side of the clamping part of one of the two claw bodies is provided with a boss, the inner side of the clamping part of the other claw body is provided with two convex ribs in a clearance way, the distance between the two convex ribs is equal to the width of the boss, and when the two claw bodies are closed, the boss is embedded between the two convex ribs.

Preferably, the thread take-up assembly is arranged at the side part of the thread take-up clamping jaw, and the thread take-up clamping jaw is connected with the first moving mechanism.

Preferably, the first moving mechanism and the first translation mechanism are arranged on the moving trolley.

The wire twisting mechanism comprises a frame and a frame moving assembly for driving the frame to translate along a first direction and longitudinally lift, a rotating shaft with an axis extending longitudinally is rotatably arranged on the frame, the rotating shaft is connected with a rotary driving mechanism for driving the rotating shaft to rotate, and the lower end of the rotating shaft is connected with a wire twisting clamping jaw; the frame is also provided with a second translation mechanism, the second translation mechanism is connected with a first guide wheel driven by the second translation mechanism to move along a first direction, the axis of the first guide wheel extends along the first direction, the top of the first guide wheel is not lower than the top of the wire twisting clamping jaw, and the first guide wheel can move out of the first side of the wire twisting mechanism.

The winding system comprises any one of the thread end tightening devices.

The thread end tightening method based on the thread end tightening device comprises the following steps:

s1, after a wire reel with an axis extending along a first direction on a wire winding machine finishes winding, a first translation mechanism starts a wire breaking mechanism and a wire twisting mechanism to move to a designated position above the wire reel;

s2, starting and driving the thread take-up assembly by the first moving mechanism to take up the thread between the full thread wheel and the paying-off guide wheel onto the first guide wheel, the second guide wheel and the third guide wheel of the thread breaking mechanism in sequence;

s3, the first moving mechanism starts and drives the thread taking-up assembly to rotate around the periphery of the full thread wheel so that the thread between the full thread wheel and the third guide wheel forms a coil and then stops above the thread wheel;

s4, after the frame moving assembly starts to drive the wire twisting clamp claw to move to a wire grabbing position, two claw bodies of the wire twisting clamp claw are closed, and clamping parts of the two claw bodies clamp the coil, the third guide wheel and the wire between the wire picking assembly;

s5, a wire clamping claw of the wire breaking mechanism is started to clamp the wire between the second guide wheel and the wire breaker, and the wire breaker breaks the wire below the wire clamping claw;

s6, the first moving mechanism starts to drive the thread take-up assembly to be pulled out of the coil;

and S7, the rotary driving mechanism starts to drive the wire twisting clamp to rotate for a preset number of times so as to twist the coil and the wire clamped by the wire twisting clamp together.

Preferably, in the step S6, the first moving mechanism drives the thread take-up assembly to move down for a certain stroke and then withdraw from the coil.

Preferably, the thread end tightening method further includes:

s8, the first moving mechanism starts a driving wire wheel clamping jaw to clamp a full wire wheel on the winding machine and take the full wire wheel off the winding machine to be placed at a blanking position;

s9, the first moving mechanism starts to drive the wire wheel clamping jaw to clamp an empty wire wheel and is mounted on a winding shaft of the winding machine;

and S10, starting the first moving mechanism to enable the thread taking-up assembly to move to the thread breaking mechanism to clamp the thread end and wind the thread end on the idle thread wheel.

The technical scheme of the utility model has the advantages that:

the utility model adds the thread twisting mechanism on the basis of the existing thread taking-up structure, thread breaking structure and other structures, and can effectively cooperate with the existing structure through the thread twisting mechanism so as to realize the twisting of the thread ends and the coil, and compared with a knotting mode, the thread ends are twisted in a twist mode, so that the thread ends can be twisted into dead knots, thereby effectively avoiding the problem of loosening the thread ends caused by vibration, having higher stability, and the time for twisting the thread ends on one full thread wheel is about 10 seconds less than the time for knotting the thread ends, and having higher efficiency. Meanwhile, the first guide wheel is arranged at the wire twisting mechanism and can be effectively matched with the wire breaking mechanism, so that the action of the wire twisting mechanism cannot be influenced by wires between the wire paying-off guide wheel and the wire breaking mechanism, and stable wire twisting is fully ensured.

The frame moving assembly can drive the frame to be heightened steplessly, and can effectively meet the wire twisting requirements of the spool with the wheel disc size of 170-255 mm, and the applicability is good.

The rotating shaft adopts the structure of the central hole and the side perforation, is more convenient for wiring or connecting pipes, can effectively protect pipelines and the like, avoids the swinging of the pipelines in the rotating process, and is more convenient for the stable installation of the twisting clamping jaw due to the arrangement of the connecting disc. Meanwhile, the axis of the rotating shaft passes through the center of the top of the opening and closing driving device, so that the thread end and the coil clamped can be prevented from being greatly swung in the thread twisting process, and the thread twisting stability is effectively ensured.

The claw body is designed into a C shape, so that a thread picking component can be effectively avoided in the action process, the connection reliability with the opening and closing driving mechanism is conveniently ensured, the matched structure of the convex edges and the convex plates on the claw body can effectively ensure the stability of taking the thread clamp, the thread can be effectively driven to be screwed together when the thread is screwed, and the problem that the thread is not screwed effectively due to unstable clamping is avoided.

According to the utility model, after the wire clamp claw is used for grabbing the wire head and the coil, the wire picking assembly is downwards moved and then is pulled out of the coil, so that the wire picking assembly can be effectively prevented from pulling the coil.

The structure and the method of the utility model are not only suitable for the thread end screwing of the monofilament winding on one thread wheel, but also suitable for the thread end screwing of the double thread winding and the triple thread winding on one thread wheel, and have good application flexibility.

The structure and the method can realize the thread end screwing, the automatic blanking of the full thread wheel, the automatic feeding of the empty thread wheel and the automatic winding of the thread end on the empty thread wheel, can effectively realize the automatic realization of the whole thread winding process, and have high automation degree.

Drawings

Fig. 1 is a first perspective view of the thread end tightening device of the present utility model;

fig. 2 is a second perspective view of the thread end tightening device of the present utility model;

FIG. 3 is an enlarged view of area A of FIG. 1;

fig. 4 is a perspective view of a thread tightening mechanism in the thread end tightening device of the present utility model;

FIG. 5 is an enlarged view of area B of FIG. 2;

FIG. 6 is a perspective view of the spindle in the threading mechanism of the present utility model;

fig. 7 is a perspective view of the threading jaw of the present utility model;

FIG. 8 is a schematic view of the take-up assembly of the present utility model starting take-up;

FIG. 9 is a schematic view of the take-up assembly of the present utility model taking up the wire between the payout guide and the take-up wheel to the upper right of the first guide;

FIG. 10 is a schematic view of the take-up assembly of the present utility model taking up the wire between the payout guide wheel and the take-up wheel to the upper right of the second guide wheel;

FIG. 11 is a schematic view of the position of the take-up assembly of the present utility model beginning to pick up the wire between the third guide wheel and the full wire wheel to form a loop;

FIG. 12 is a schematic view of the take-up assembly of the present utility model having the wire between the third guide wheel and the take-up wheel form a loop;

FIG. 13 is a schematic view of the present utility model with the twisting claw initially ready to descend;

fig. 14 is a schematic view of the present utility model with the twisting claw lowered into position ready for crimping.

Detailed Description

The objects, advantages and features of the present utility model are illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of the technical scheme of the utility model, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the scope of the utility model.

In the description of the embodiments, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the scheme, the direction approaching the operator is the near end, and the direction separating from the operator is the far end, with reference to the operator.

Example 1

The thread end tightening device disclosed by the utility model is described below with reference to the accompanying drawings, as shown in fig. 1 and fig. 2, the thread end tightening device comprises a thread taking-up assembly 100, a first moving mechanism 200 for driving the thread taking-up assembly 100 to move, a thread breaking mechanism 300 and a first translation mechanism 400 for driving the thread breaking mechanism 300 to translate along a first direction X, a thread tightening mechanism 500 is arranged beside the thread breaking mechanism 300, the thread tightening mechanism 500 comprises a frame 501 and a frame moving assembly 502 for driving the frame 501 to translate along the first direction X and lift along a longitudinal direction Z, a rotary joint 503 and a rotary shaft 504 are arranged on the frame 501, the axis of the rotary joint 503 is coaxial with the rotary shaft 504 and connected through a connecting piece 505, the rotary shaft 504 is rotatably arranged on the frame 501 and connected with a rotary driving mechanism for driving the rotary shaft 504 to rotate, and the lower end of the rotary shaft 504 is connected with a thread tightening clamp claw 506; the frame 501 is further provided with a second translation mechanism 507, the second translation mechanism 507 is connected with a first guide wheel 508 driven by the second translation mechanism to move along a first direction X, the axis of the first guide wheel 508 extends along the first direction X, the top of the first guide wheel 508 is not lower than the top of the wire twisting claw 506, the first guide wheel 508 can move to the outside of a first side of the wire twisting mechanism 500, and the first side is the side of the wire twisting mechanism 500 close to the wire breaker 301 of the wire breaking mechanism 300.

The specific structures of the thread take-up assembly 100, the first moving mechanism 200, the thread breaking mechanism 300 and the first translation mechanism 400 are known technologies, and they may be structures disclosed in the chinese patent application No. 201921497319.4. Of course, the thread take-up assembly 100 may also adopt the structure disclosed in the chinese patent with the grant publication number CN 212197937U.

The structure of the wire breaking mechanism 300 in this embodiment is slightly different from that of the guiding fusing device in the prior art, in that: as shown in fig. 3, in this embodiment, the upper partition column is replaced by a second guide wheel 302 and the lower partition column is replaced by a third guide wheel 303, the second guide wheel 302 is rotatably arranged on a first cylinder 304 driving the second guide wheel to move along a first direction X, the third guide wheel 303 is rotatably arranged on a second cylinder 305 driving the third guide wheel to move along the first direction X, and the second guide wheel 302 and the third guide wheel 303 can better utilize the wheel grooves of the second guide wheel and the third guide wheel to limit the wire at the wire breaking mechanism 300, so that the wire is prevented from being offset along the first direction X to influence the subsequent operation.

When the cylinder shafts of the first cylinder 304 and the second cylinder 305 extend, the wheel grooves of the second guide wheel 302 and the third guide wheel 303 are opposite to the wire inlet 307 of the wire breaker 301 in the first direction X; when the cylinder shafts of the first and second cylinders 304, 305 are retracted, the second and third guide wheels 302, 303 are located at the side of the wire inlet 307 of the fuse.

As shown in fig. 3, with respect to the guiding fusing device of the prior art, the wire breaking mechanism of the present utility model further includes a diameter measuring sensor 306, the diameter measuring sensor 306 for measuring the diameter of the wire, by which the wire can be conveniently classified, and the specific structure of the diameter measuring sensor 306 is a known technology and is not limited herein. The diameter measuring sensor 306 is located below or above the wire breaker of the wire breaking mechanism, preferably, the diameter measuring sensor 306 is located below the wire breaker, so that the structure can be more compact.

As shown in fig. 3 to 5, the thread twisting mechanism 500 may be disposed on the thread breaking mechanism 300, or may be disposed on the first translation mechanism 400, and in this embodiment, the thread twisting mechanism 500 is disposed on the thread breaking mechanism 300 as an example. Specifically, the wire twisting mechanism 500 is disposed on the front surface of a vertical mounting plate 600, and the vertical mounting plate 600 is disposed in front of the wire breaking mechanism 300 and outside of the two guide plates 309 of the wire breaking mechanism.

As shown in fig. 3-5, the frame moving assembly 502 of the threading mechanism 500 includes a translation driving cylinder 509 disposed on the vertical mounting plate 600, a cylinder shaft of the translation driving cylinder 509 is connected to a sliding plate 511 through an adapter 510, the sliding plate 511 is slidably disposed on a transverse rail 512, the transverse rail 512 extends along a first direction X, and a lifting cylinder 513 is disposed on the sliding plate 511, where, of course, in a preferred embodiment, the lifting cylinder 513 may be replaced by a servo linear module, so that the frame moving assembly 502 can adjust the frame 501 to be infinitely high, thereby effectively adapting to threading requirements of wire wheels with different sizes. The cylinder shaft of the lifting cylinder 513 is connected with a mounting frame 514, the mounting frame 514 is arranged on a vertical rail 515 in a lifting manner, the vertical rail 515 is arranged on the sliding plate 511, and the frame 501 is arranged on the mounting frame 514.

As shown in fig. 4 and 5, the rotary joint 503 may be a known cyclone adapter or an electrical slip ring, which is used to avoid interference between a line or pipe and rotation of the wire twisting claw 506 when the wire twisting claw 506 is powered or supplied with air or oil. The upper end of the rotary joint 503 is connected with the frame 501 through a fixing member 516, and the lower end of the rotary joint 503 is connected with the rotating shaft 504 through a C-shaped connecting member 505. The rotating shaft 504 is rotatably arranged on the frame 501 through a bearing (not shown in the figure), meanwhile, a driven wheel 516 is coaxially sleeved on the rotating shaft 504, the connecting piece 505 is specifically connected to the top of the driven wheel 516, the driven wheel 516 is connected with a driving wheel 518 through a belt 517, the driving wheel 518 is arranged on a motor shaft of a motor 519, the motor 519 is fixed on the frame 501, and the motor 519, the driving wheel 518, the belt 517 and the driven wheel 516 form the rotary driving mechanism. When the motor 519 works, the rotating shaft 504 is driven to rotate, so that the wire twisting clamping jaw 506 below the rotating shaft 504 is driven to rotate to twist wires.

As shown in fig. 6, in order to avoid scattering of wires and pipes, to reduce the exposure of wires and pipes and to avoid the occurrence of large-amplitude swinging of wires and pipes during rotation, the rotating shaft 504 is provided with a central hole 520 extending along the axial direction of the rotating shaft, a through hole 521 communicated with the central hole 520 is formed on the side wall of the rotating shaft 504, a connecting disc 522 is arranged at the lower end of the rotating shaft 504, and wires and pipes pass through the central hole 520 and the through hole 521 to be connected with the twisting clamp 506.

As shown in fig. 3 and fig. 4, the second translation mechanism 507 is disposed in front of the frame 501, the second translation mechanism 507 may be a device capable of generating linear movement, such as a cylinder or a servo linear module, and the top of the slot of the first guide wheel 508 is not lower than the top of the rotary joint 503. The second translation mechanism 507 is exemplified by a cylinder, and when the cylinder shaft of the cylinder extends, the first guide wheel can be driven to move to correspond to the position of the wire inlet 307 of the wire breaker 301 at the wire breaking mechanism 300 in the first direction X. When the cylinder shaft of the cylinder is retracted, the first guide wheel 508 moves to the side of the incoming line.

Through setting up first guide wheel 508, can with second guide wheel 302 and third guide wheel 303 cooperation to avoid effectively that the silk thread between unwrapping wire guide wheel 701 and the broken string mechanism of coiling machine 700 department produces the interference to the action of twisting the line mechanism 500, guarantee to twist the line action stable realization of line mechanism.

As shown in fig. 7, the wire twisting claw 506 includes two C-shaped claw bodies 522 and an opening and closing driving device 523 for driving them to open and close, the axis of the rotating shaft 504 passes through the center of the top of the opening and closing driving device 523, and at the same time, the claw bodies 522 are C-shaped and symmetrically distributed on two radial sides of the rotating shaft 504, so that the wire clamped by the wire twisting claw 506 can be effectively prevented from being swung greatly during wire twisting. Of course, the twisting clamp jaw 506 may also be a motorized servo jaw.

As shown in fig. 7, a boss 525 is disposed at an inner side surface of the clamping portion 524 of one of the two claw bodies 522, two ribs 526 are disposed at an inner side surface of the clamping portion 524 of the other claw body, the space between the two ribs 526 is equal to the width of the boss 525, and when the two claw bodies 522 are closed, the boss 525 is embedded between the two ribs 526, so that in clamping, the clearance fit between the boss 525 and the ribs 526 can effectively improve the clamping stability of the wire, thereby ensuring effective threading.

Although in the present embodiment, the first translation mechanism drives the wire breaking mechanism and the wire twisting mechanism to move to the wire-full wheel along the first direction X for processing, in other embodiments, the first translation mechanism may also drive the wire breaking mechanism and the wire twisting mechanism to move along the second direction Y, which is perpendicular to the first direction X and the longitudinal direction Z.

The thread end tightening device may only tighten thread ends for a thread wheel on the winding machine 700, and at this time, the first moving mechanism 200 and the first translation mechanism 400 may be disposed axially outside a winding shaft of the winding machine. Of course, if the first translation mechanism 400 drives the wire breaking mechanism and the wire twisting mechanism to move in the second direction Y, the first translation mechanism 400 may be disposed at one side in the radial direction of the spool, and the first translation mechanism may still be disposed at the outer side in the axial direction of the spool.

In a use scenario of multi-station synchronous winding, it is preferable that one thread end tightening device is used to tighten thread ends for full thread wheels a at a plurality of winding machines 700, so, as shown in fig. 1 and fig. 2, the first moving mechanism 200 and the first translation mechanism 400 of the thread end tightening device are arranged on a moving trolley 800, the moving trolley 800 is arranged at the outer side of the winding shaft of the winding machine in the axial direction, at this time, the first moving mechanism 200 can more conveniently control the movement of the thread picking assembly, and the moving trolley 800 can be a known AGV trolley or an RGV trolley or a powered trolley moving along a ground rail, etc., and the specific structure is a known technology and is not limited herein.

The thread end tightening device can only have the function of tightening thread ends and does not have the function of feeding and discharging thread wheels. Of course, more preferably, the thread end tightening device also has a function of feeding and discharging thread on a thread wheel, as shown in fig. 1 and fig. 2, the thread take-up assembly 100 is disposed at a side portion of the thread wheel clamping jaw 900, the thread wheel clamping jaw 900 is connected to the first moving mechanism 200, and a specific structure of the thread wheel clamping jaw 900 may be a structure disclosed in a chinese patent application No. 201921497319.4 or a structure disclosed in a chinese patent with an issued publication No. CN 212197937U.

The whole thread end tightening device can adopt known control equipment and control technology to control the automatic action of each part, and the specific control equipment and control technology are known technology and are not repeated here.

The above-mentioned thread end tightening method will be described with emphasis, comprising the steps of:

s1, after the wire reel extending along the axis line of the winding machine 700 along the first direction X completes winding to obtain the full wire reel a, the first translation mechanism 400 starts to move the wire breaking mechanism 300 and the wire twisting mechanism 500 to the designated position above the wire reel, at this time, the wire breaking mechanism 300 is located at one radial side of the full wire reel a, the wire inlet 307 of the wire breaker 301 of the wire breaking mechanism 300 faces the full wire reel and is opposite to the wire position between the wire releasing guide wheel 701 and the full wire reel a, meanwhile, the wire twisting mechanism 500 is located directly above the full wire reel a and is biased to one side of the wire between the wire releasing guide wheel 701 and the full wire reel a, and the two jaws 522 of the wire twisting mechanism in the open state are symmetrically distributed at two axial sides of the full wire reel a, although the two jaws 522 may not be symmetrically arranged at two axial sides of the full wire reel a.

S2, the first moving mechanism 200 starts to drive the thread taking-up assembly 100 to take up the thread between the full thread wheel a and the paying-off guide wheel 701 onto the first guide wheel 508, the second guide wheel 302 and the third guide wheel 303 of the thread breaking mechanism 300 in sequence;

in a specific operation, the thread take-up assembly 100 moves below the first thread segment b1 between the full thread wheel a and the thread take-up guide wheel 701 in a state that the axis is parallel to the first direction X, as shown in fig. 8. Then, the thread take-up assembly 100 moves upward to pick up the first thread segment b1 to the right upward of the first guide wheel 508 as shown in fig. 9. Subsequently, the second translation mechanism 507 drives the first guide wheel 508 to move towards the first translation mechanism 400 until the wire groove of the first guide wheel 508 corresponds to the position of the first wire segment b 1; then, the take-up assembly 100 moves to the upper right of the second guide wheel 302 (rightward) until the thread between the take-up assembly and the take-up guide wheel is positioned at the upper right of the second guide wheel 302, and at this time, as shown in fig. 10, the thread between the take-up assembly 100 and the full-thread wheel enters the Y-shaped guide grooves 310 at the two guide plates 309 of the breaking mechanism 300 and the take-up assembly 100 moves to the upper right corner of the second guide wheel and moves the third thread segment b3 between the take-up assembly and the full-thread wheel a to the right of the second guide wheel 302 and the third guide wheel 303 when the take-up assembly 100 drives the thread to move rightward. Then, the cylinder shaft of the first cylinder 304 connected to the second guide wheel 302 is extended to make the wire groove of the second guide wheel 302 correspond to the position of the second wire segment b2 between the take-up assembly 100 and the first guide wheel 508, the cylinder shaft of the second cylinder 305 is extended to make the third guide wheel 303 correspond to the third wire segment b3 between the take-up assembly 100 and the full-line wheel a, and the take-up assembly 100 makes the lifted wire sleeve on the second guide wheel and the third guide wheel.

When the thread take-up assembly 100 is used for sleeving the thread between the full thread wheel a and the paying-off guide wheel on the first guide wheel, the second guide wheel and the third guide wheel, the paying-off mechanism is matched with the action of the thread take-up assembly 100 to take up and pay off, and/or the thread winding machine 700 is used for driving the full thread wheel a to rotate and matched with the action of the thread take-up assembly 100 to take up and pay off.

S3, after the first moving mechanism 200 starts to drive the thread take-up assembly 100 to rotate around the periphery of the full thread wheel a to form a loop b5 by the thread between the full thread wheel a and the third guiding wheel 303 driven by the thread take-up assembly 100, the thread take-up assembly 100 is stopped above the full thread wheel.

Specifically, the thread take-up assembly 100 moves to the right of the fourth thread segment b4 between the third guide wheel 303 and the full-thread wheel a in a state that the axis is parallel to the first direction X, as shown in fig. 11. Then, the thread take-up assembly 100 rotates counterclockwise to contact with the fourth thread segment b4 and drive the fourth thread segment b4 to rotate, the thread between the third guiding wheel and the full thread wheel forms a loop b5 under the action of the thread take-up assembly 100, and finally the thread take-up assembly 100 stays right above the full thread wheel a, as shown in fig. 12.

In the process of forming the thread into the loop b5 by the thread take-up assembly 100, the thread take-up mechanism is engaged with the action of the thread take-up assembly 100 to take up and pay-off the thread, and/or the thread winding machine 700 drives the full-thread wheel a to rotate and engaged with the action of the thread take-up assembly 100 to take up and pay-off the thread.

S4, after the frame moving assembly 502 starts to drive the threading clamp 506 to move to the thread grabbing position, the two claws 522 of the threading clamp 506 are closed, and the clamping portions 524 of the two claws 522 clamp the coil b5 and the thread b6 between the third guide wheel and the thread picking assembly.

Specifically, the cylinder shaft of the translation driving cylinder 509 of the frame moving assembly 502 is extended to move the sliding plate 511 toward the outer end of the full wire wheel, and then the cylinder shaft of the elevating cylinder 513 is extended to drive the frame 501 to move downward as a whole. When the frame moving assembly 502 is started, the two claw bodies 522 of the twisting clamping jaw 506 are in an open state, and the extending direction of the clamping parts 524 of the two claw bodies are parallel to the axial direction of the full wire wheel a. When the cylinder shaft of the translation driving cylinder 509 extends, the rotating shaft 504 is moved to be opposite to the guide plate 309 of the thread breaking mechanism in the first direction X, so that the axis of the rotating shaft 504 is located at the thread b6 between the third guide wheel 303 and the thread take-up assembly, and thus the thread throwing problem during thread twisting can be reduced to the greatest extent.

The threading jaws 506 will press the thread b6 and the coil b5 between the second guiding wheel and the full-line wheel during the downward movement, and finally, the two clamping portions 524 move under the take-up assembly 100 and are located at two sides of the take-up assembly 100, and the take-up assembly 100 is located between the clamping portions 524 and the connecting portions 527 of the jaws, as shown in fig. 13 and 14. Then, the opening and closing driving device 523 of the threading jaw 506 is started to drive the two claw bodies 522 to close so as to clamp the coil b5 and the thread b6 between the third guide wheel 303 and the thread take-up assembly.

S5, the wire clamping claw of the wire breaking mechanism 300 is activated to clamp the wire between the second guide wheel 302 and the wire breaker 301, and then the wire breaker 301 breaks the wire under the wire clamping claw.

S6, then, the first moving mechanism 200 starts to drive the thread take-up assembly 100 to be pulled out from the coil b 5.

S7, the rotary driving mechanism starts to drive the threading clamping jaw 506 to rotate a preset number of times so as to thread the clamped coil b5 and the thread b6 together.

After the wire twisting is completed, the wire twisting clamp claw reversely rotates to restore to an initial state, and in the initial state, the extending direction of the clamping part of the claw body is parallel to the axial direction of the full wire wheel.

Further, in the step S6, the first moving mechanism 200 drives the thread take-up assembly 100 to move down for a certain stroke and then withdraw from the coil b5, so that the action sequence can effectively avoid the problem that the thread is pulled out due to the thread pulling in the process of withdrawing the thread take-up assembly 100.

When the thread end tightening device further comprises a thread wheel clamping jaw 900, the thread end tightening method further comprises the step of feeding and discharging the thread wheel, and the specific steps are as follows:

s9, the first moving mechanism 200 starts the driving wire wheel clamping jaw 900 to clamp the full wire wheel a on the winding machine 700 and take the full wire wheel a off the winding machine 700 to be placed at a discharging position, and the discharging position can be located beside the winding machine 700 or can be arranged on the moving trolley 800.

S10, the first moving mechanism 200 is then started to drive the wire wheel clamping jaw 900 to clamp an empty wire wheel c and install the empty wire wheel c on the winding shaft of the winding machine 700, where the empty wire wheel c may be placed beside the winding machine 700 or on the moving trolley 800.

And S11, finally, the first moving mechanism 200 is started to enable the thread picking assembly 100 to move to the thread clamping end of the thread breaking mechanism 300 and wind the thread end on the idle thread wheel c, when the thread is specifically grabbed, the strip-shaped assembly grabs the thread between the second guide wheel 302 and the first guide wheel 508, after the thread picking assembly 100 winds the grabbed thread end on the idle thread wheel c, the thread picking assembly 100 releases the thread end, and the thread winding machine can perform thread winding.

Example 2

The present embodiment discloses a winding system, which includes the thread end tightening device of the above embodiment, and of course, further includes a structure of a known winding system, for example, may include one or more rows of winding machines and a pay-off machine matched with each winding machine or a plurality of winding machines, and the corresponding structure is a known technology and will not be repeated herein.

The utility model has various embodiments, and all technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims (12)

1. The thread end tightening device comprises a thread picking assembly, a first moving mechanism for driving the thread picking assembly to move, a thread breaking mechanism and a first translation mechanism for driving the thread breaking mechanism to translate, and is characterized in that: the first translation mechanism is also provided with a wire twisting mechanism positioned at the front side of the wire breaking mechanism, the wire twisting mechanism comprises a frame and a frame moving assembly for driving the frame to translate along a first direction and longitudinally lift, a rotating shaft with an axis extending longitudinally is arranged on the frame in a autorotation manner, the rotating shaft is connected with a rotary driving mechanism for driving the rotating shaft to rotate, and the lower end of the rotating shaft is connected with a wire twisting clamping jaw; the frame is further provided with a second translation mechanism, the second translation mechanism is connected with a first guide wheel driven by the second translation mechanism to move along a first direction, the axis of the first guide wheel extends along the first direction, the top of the first guide wheel is not lower than the top of the wire twisting clamping jaw, the first guide wheel can move to the outside of a first side of the wire twisting mechanism, and the first side is the side, close to a wire breaker of the wire breaking mechanism, of the wire twisting mechanism.

2. The thread end tightening device according to claim 1, wherein: the frame moving assembly is configured to steplessly raise the frame.

3. The thread end tightening device according to claim 1, wherein: the rotating shaft is coaxial with the rotating shaft through a connecting piece, and the upper part of the rotating joint is fixed on the frame.

4. The thread end tightening device according to claim 1, wherein: the rotating shaft is provided with a central hole extending along the axial direction of the rotating shaft, a through hole communicated with the central hole is formed in the side wall of the rotating shaft, and a connecting disc is arranged at the lower end of the rotating shaft.

5. The thread end tightening device according to claim 1, wherein: the wire twisting clamp claw comprises two C-shaped claw bodies and an opening and closing driving device for driving the two C-shaped claw bodies to open and close.

6. The thread end tightening device according to claim 1, wherein: the axis of the rotating shaft passes through the top center of the opening and closing driving device of the twisting clamping jaw, and the frame moving assembly can drive the rotating shaft to move to be opposite to the guide plate of the wire breaking mechanism in the first direction.

7. The thread end tightening device according to any one of claims 1 to 6, wherein: the first guide wheel can move to correspond to the position of a wire inlet of a wire breaker at the wire breaking mechanism in a first direction, and the top of the first guide wheel is not lower than the top of the rotary joint.

8. Twisting mechanism, its characterized in that: the wire twisting clamping jaw comprises a frame and a frame moving assembly for driving the frame to translate along a first direction and longitudinally lift, wherein a rotating shaft with an axis extending longitudinally is arranged on the frame in a autorotation manner, the rotating shaft is connected with a rotary driving mechanism for driving the rotating shaft to rotate, and the lower end of the rotating shaft is connected with a wire twisting clamping jaw; the frame is also provided with a second translation mechanism, the second translation mechanism is connected with a first guide wheel driven by the second translation mechanism to move along a first direction, the axis of the first guide wheel extends along the first direction, the top of the first guide wheel is not lower than the top of the wire twisting clamping jaw, and the first guide wheel can move out of the first side of the wire twisting mechanism.

9. The winding system is characterized in that: comprising a thread end tightening device according to any one of claims 1 to 7.

10. The thread end screwing method is characterized in that: the thread end tightening device according to any one of claims 1 to 7, wherein the thread end tightening method comprises at least the following steps:

s1, after a wire reel with an axis extending along a first direction on a wire winding machine finishes winding, a first translation mechanism starts a wire breaking mechanism and a wire twisting mechanism to move to a designated position above the wire reel;

s2, starting and driving the thread take-up assembly by the first moving mechanism to take up the thread between the full thread wheel and the paying-off guide wheel onto the first guide wheel, the second guide wheel and the third guide wheel of the thread breaking mechanism in sequence;

s3, the first moving mechanism starts and drives the thread taking-up assembly to rotate around the periphery of the full thread wheel so that the thread between the full thread wheel and the third guide wheel forms a coil and then stops above the full thread wheel;

s4, after the frame moving assembly starts to drive the wire twisting clamp claw to move to a wire grabbing position, two claw bodies of the wire twisting clamp claw are closed, and clamping parts of the two claw bodies clamp the coil, the third guide wheel and the wire between the wire picking assembly;

s5, a wire clamping claw of the wire breaking mechanism is started to clamp the wire between the second guide wheel and the wire breaker, and the wire breaker breaks the wire below the wire clamping claw;

s6, the first moving mechanism starts to drive the thread take-up assembly to be pulled out of the coil;

and S7, the rotary driving mechanism starts to drive the wire twisting clamp to rotate for a preset number of times so as to twist the coil and the wire clamped by the wire twisting clamp together.

11. The thread end tightening method according to claim 10, characterized in that: in the step S6, the first moving mechanism drives the thread take-up assembly to move down for a certain stroke and then withdraw from the coil.

12. The thread end tightening method according to claim 10, characterized in that: further comprises:

s8, the first moving mechanism starts a driving wire wheel clamping jaw to clamp a full wire wheel on the winding machine and take the full wire wheel off the winding machine to be placed at a blanking position;

s9, the first moving mechanism starts to drive the wire wheel clamping jaw to clamp an empty wire wheel and is mounted on a winding shaft of the winding machine;

and S10, starting the first moving mechanism to enable the thread taking-up assembly to move to the thread breaking mechanism to clamp the thread end and wind the thread end on the idle thread wheel.