Flexible watch band automatic threading device

Abstract

The present invention discloses an automatic threading device for a flexible watchband, comprising a frame, a turntable provided in the middle of the frame, a loading and unloading mechanism, a first threading mechanism, a first ultrasonic welding mechanism, a second threading mechanism, and a second ultrasonic welding mechanism arranged around the turntable. The loading and unloading mechanism is used to deliver the watchband to be processed to the turntable, the first threading mechanism and the first ultrasonic welding mechanism are used to thread and weld the threading hole on the left side of the watchband, and the second threading mechanism and the second ultrasonic welding mechanism are used to thread and weld the threading hole on the right side of the watchband. The present invention can realize automatic threading and welding of the watchband, solve the problem of time-consuming, labor-intensive and inefficient manual threading, greatly improve the processing efficiency of the watchband, and is suitable for large-scale production operations. The welding effect is good and the production quality of the product can be guaranteed. The entire device has differentiated actions, which reduces the debugging accuracy requirements. The various mechanisms have simple and compact structures and are convenient for installation and adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of watch strap processing, and in particular to an automatic threading device for a flexible watch strap. Background Art

[0002] The initial structure of the existing watch strap a is as follows Figure 1 As shown, the final product is Figure 2 As shown, during processing, it is necessary to thread the wires through the threading holes a0 on both sides and weld the wire ends. Currently, manual threading is usually used. There is no automated threading equipment, and automated welding cannot be achieved. Manual operation is time-consuming and labor-intensive, with low efficiency, making it unsuitable for large-scale production operations. The welding effect is poor, the wire ends are easily loosened, and the production quality of the product cannot be guaranteed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an automatic threading device for flexible watch straps, aiming to solve the technical problems in the prior art that there is currently no automatic threading device, manual operation is time-consuming, labor-intensive and inefficient, not suitable for large-scale production operations, welding effect is poor, thread ends are easily loosened, and product production quality cannot be guaranteed.

[0004] The technical solution of the present invention is: an automatic threading device for a flexible watchband, comprising a frame, a turntable is provided in the middle of the frame, and a loading and unloading mechanism, a first threading mechanism, a first ultrasonic welding mechanism, a second threading mechanism, and a second ultrasonic welding mechanism are arranged around the turntable;

[0005] The turntable includes a turntable body and a plurality of watch strap placement seats provided on the turntable body, each of the watch strap placement seats is elastically mounted with a watch strap fixing clip, and the outer end of each watch strap placement seat is provided with a wire clip;

[0006] The loading and unloading mechanism includes a material tray, a suction nozzle, a positioning turntable, and a clamping assembly. The watch strap to be processed is placed in the material tray for loading. The suction nozzle is used to suck the watch strap and place it on the positioning turntable for secondary positioning. The clamping assembly is used to open the watch strap fixing clamp so that the suction nozzle can suck the positioned watch strap again for placement.

[0007] The first threading mechanism includes a first flattening mechanism, a first wire feeding machine, a first gripper robot, and a first threading machine. The first flattening mechanism is used to press the watch strap. The first wire feeding machine is used to provide wire for the first gripper robot to pull. The first threading machine is used to cooperate with the first gripper robot to thread the wire into the threading hole on the left side of the watch strap. After threading, the first wire feeding machine cuts the wire. The wire ends at both ends are grasped by the first gripper robot and clamped on the wire clamps of the watch strap placement seat respectively.

[0008] The first ultrasonic welding mechanism includes a first winding machine, a first welding head assembly, and a first ultrasonic welder. The first winding machine is used to clamp the two wire ends from the wire clamp, rotate and wind them, and straighten the two wires. The first welding head assembly is used to press the watch strap during winding. The first ultrasonic welder is used to cut off the excess wire ends outside the wire clamp during the process of clamping the wire ends and weld the wound wire ends.

[0009] The second threading mechanism includes a second flattening mechanism, a second wire feeding machine, a second gripper robot, and a second threading machine. The second flattening mechanism is used to press the watch strap. The second wire feeding machine is used to provide wire for the second gripper robot to pull. The second threading machine is used to cooperate with the second gripper robot to thread the wire into the threading hole on the right side of the watch strap. After threading, the second wire feeding machine cuts the wire. The thread ends at both ends are grasped by the second gripper robot and clamped on the wire clamps of the watch strap placement seat respectively.

[0010] The second ultrasonic welding mechanism includes a second winding machine, a second welding pressure head assembly, and a second ultrasonic welding machine. The second winding machine is used to clamp the two wire ends from the wire clamp respectively, rotate and wind them, and straighten the two strands of wire. The second welding pressure head assembly is used to press the watch strap during winding. The second ultrasonic welding machine is used to cut off the excess length of the wire end outside the wire clamp during the process of clamping the wire end, and to weld the wound wire end.

[0011] Furthermore, the turntable body of the present invention is driven to rotate by a turntable motor, and a plurality of the strap placement seats are distributed at equal angles around the center of the turntable body; the strap fixing clamp is installed in the strap placement seat by a spring, and the push rod at one end of the strap fixing clamp extends out of one side of the strap placement seat, and the two vertical positioning blocks at the other end extend out of the upper surface of the strap placement seat; the upper end of the wire clamp is provided with two wire clamping parts arranged at intervals.

[0012] Furthermore, the material tray in the present invention is driven to move by the Y-axis module A, and the suction nozzle is driven to rise and fall by the Z-axis module A, and the Z-axis module A is connected to the X-axis module A; a positioning column is provided on the positioning turntable, and the positioning column is used to abut against the end of the watch strap to achieve the positioning of the watch strap; the clamping assembly includes an clamping lifting cylinder, and a top head connected to the clamping lifting cylinder and driven to extend and retract by the clamping telescopic cylinder, and the top head can push the push rod to open the watch strap fixing clamp.

[0013] Furthermore, in the present invention, the first flattening mechanism includes an X-axis module B, a Z-axis module B connected to the X-axis module B, and a pressure rod connected to the Z-axis module B; the first wire feeding machine includes a wire feeding device, a first threading seat, a wire clamping seat, a second threading seat, and a threading and cutting scissors arranged in sequence, the wire clamping seat includes a wire clamping claw driven by a wire clamping cylinder, and the threading and cutting scissors can be lifted and installed at the front end of the second threading seat; the first clamping robot includes a robot body, a robot clamping assembly connected to the robot body and driven by a robot rotating cylinder; the first threading machine includes a crochet hook driven by a threading three-axis module, a threading lifting cylinder movable in the XY axis direction connected to the threading three-axis module, and a wire clamping claw assembly connected to the threading lifting cylinder, and the top of the crochet hook is provided with a thread hook opening.

[0014] Furthermore, the first winding machine in the present invention includes a winding clamp assembly driven by a winding three-axis module, the winding clamp assembly includes a rotating seat driven by a winding rotating cylinder, a first clamp and a second clamp spaced apart at the bottom of the rotating seat, and a telescopic block arranged between the first clamp and the second clamp; the first welding pressure head assembly includes an X-axis module C, a Y-axis module C connected to the X-axis module C, and a pressure head connected to the Y-axis module C; the first ultrasonic welding machine includes a Y-axis module D, an ultrasonic welding head connected to the Y-axis module D, and a welding wire cutting scissors connected to the Y-axis module D and driven to extend and retract by a welding telescopic cylinder.

[0015] Furthermore, in the present invention, the second threading mechanism has the same structure as the first threading mechanism, and the hooks of the second threading machine and the first threading machine are respectively arranged on both sides of the strap placement seat.

[0016] Furthermore, in the present invention, the second ultrasonic welding mechanism has the same structure as the first ultrasonic welding mechanism, and the second ultrasonic welding machine of the second ultrasonic welding mechanism is also installed on the X-axis module E.

[0017] Compared with the prior art, the present invention has the following advantages: the present invention can realize the automatic threading and welding of the watch strap, solving the problem of time-consuming, labor-intensive and inefficient manual threading. The watch strap is automatically loaded through the loading and unloading mechanism, and is driven by the turntable to be processed in sequence. Through the cooperation of two sets of threading mechanisms and ultrasonic welding mechanisms, the threading holes on both sides of the watch strap can be threaded and welded respectively, which greatly improves the processing efficiency of the watch strap, is suitable for large-scale production operations, has good welding effect, and can ensure the production quality of the product; the entire equipment has differentiated actions, which reduces the debugging accuracy requirements, and the structure of each mechanism is simple and compact, which is convenient for installation and adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1Schematic diagram of the initial structure of a watch strap in the prior art;

[0019] Figure 2 This is a schematic diagram of the finished structure of a watch strap in the prior art;

[0020] Figure 3 It is a schematic diagram of the structure of the whole machine of the present invention;

[0021] Figure 4 Schematic diagram of the layout of each mechanism in the present invention;

[0022] Figure 5 Schematic diagram of the specific structure of the turntable in the present invention;

[0023] Figure 6 Schematic diagram of the specific structure of the watchband fixing clip and the wire clip of the present invention;

[0024] Figure 7 Schematic diagram of the specific structure of the loading and unloading mechanism of the present invention;

[0025] Figure 8 Schematic diagram of the specific structure of the positioning turntable and the clamping assembly of the present invention;

[0026] Figure 9 Schematic diagram of the specific structure of the first threading mechanism in the present invention;

[0027] Figure 10 Schematic diagram of the specific structure of the first stringing machine in the present invention;

[0028] Figure 11 Schematic diagram of the specific structure of the crochet hook of the present invention;

[0029] Figure 12 Schematic diagram of the specific structure of the first ultrasonic welding mechanism in the present invention;

[0030] Figure 13 Schematic diagram of the specific arrangement of the first clamping jaw, the second clamping jaw and the telescopic block in the present invention;

[0031] Figure 14 Schematic diagram of the specific structure of the second threading mechanism in the present invention;

[0032] Figure 15 Schematic diagram of the specific layout of the second stringing machine in the present invention;

[0033] Figure 16 Schematic diagram of the specific structure of the second ultrasonic welding mechanism in the present invention.

[0034] in:

[0035] 1. Frame;

[0036] 2. Turntable; 201. Turntable body; 202. Watchband holder; 203. Watchband clamp; 203a. Push rod; 203b. Vertical positioning block; 204. Wire clamp; 204a. Wire clamp; 205. Turntable motor;

[0037] 3. Loading and unloading mechanism; 301. Material tray; 302. Suction nozzle; 303. Positioning turntable; 303a. Positioning column; 304. Clamping assembly; 304a. Clamping lifting cylinder; 304b. Clamping telescopic cylinder; 304c. Ejector head; 305. Y-axis module A; 306. Z-axis module A; 307. X-axis module A;

[0038] 4. First threading mechanism; 401. First flattening mechanism; 401a. X-axis module B; 401b. Z-axis module B; 401c. Press rod; 402. First thread feeding machine; 402a. Thread feeding device; 402b. First threading seat; 402c. Thread clamping seat; 402d. Second threading seat; 402e. Threading and thread cutting scissors; 403. First gripper robot; 403a. Robot body; 403b. Robot rotary cylinder; 403c. Robot gripper assembly; 404. First threading machine; 404a. Threading three-axis module; 404b. Hook; 404c. Threading lifting cylinder; 404d. Thread clamping jaw assembly;

[0039] 5. First ultrasonic welding mechanism; 501. First winding machine; 501a. Winding three-axis module; 501b. Winding rotary cylinder; 501c. Rotating seat; 501d. First clamping jaw; 501e. Second clamping jaw; 501f. Telescopic block; 502. First welding pressure head assembly; 502a. X-axis module C; 502b. Y-axis module C; 502c. Pressure head; 503. First ultrasonic welding machine; 503a. Y-axis module D; 503b. Ultrasonic welding head; 503c. Welding telescopic cylinder; 503d. Welding wire-cutting shears;

[0040] 6. Second threading mechanism; 601. Second flattening mechanism; 602. Second thread feeding machine; 603. Second gripper robot; 604. Second threading machine;

[0041] 7. Second ultrasonic welding mechanism; 701. Second winding machine; 702. Second welding head assembly; 703. Second ultrasonic welding machine;

[0042] 8. Hook and line mouth;

[0043] a. Watch strap; a0. Threading hole; b. Wire. DETAILED DESCRIPTION

[0044] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0045] Example:

[0046] Combine Figures 3 to 16 The figure shows a specific embodiment of the flexible watch strap automatic threading device of the present invention, referring to Figure 3 、 Figure 4 The device mainly comprises a frame 1, a turntable 2 is provided in the middle of the frame 1, and a loading and unloading mechanism 3, a first threading mechanism 4, a first ultrasonic welding mechanism 5, a second threading mechanism 6, and a second ultrasonic welding mechanism 7 are arranged around the turntable 2. The device of the present invention is used for unmanned automatic threading of flexible watch straps. The main processes include loading, threading through the left threading hole a0, ultrasonic welding of the left thread end, threading through the right threading hole a0, ultrasonic welding of the right thread end, and unloading. Since the watch strap needs to be threaded on both sides, two sets of threading mechanisms and ultrasonic welding mechanisms are required.

[0047] Reference Figure 4 、 Figure 5 The turntable 2 includes a turntable body 201 driven by a turntable motor 205. The turntable body 201 is provided with a plurality of watch strap placement seats 202. The plurality of watch strap placement seats 202 are distributed at equal angles around the center of the turntable body 201. A watch strap fixing clip 203 is installed in each watch strap placement seat 202 through a spring. Figure 6 The push rod 203a at one end of the strap fixing clamp 203 extends out of one side of the strap placement seat 202, and two vertical positioning blocks 203b at the other end extend out of the upper surface of the strap placement seat 202. Each strap placement seat 202 is provided with a wire clamp 204 at the outer end, and the upper end of the wire clamp 204 has two wire clamping portions 204a spaced apart.

[0048] Reference Figure 4 、 Figure 7 The loading and unloading mechanism 3 includes a material tray 301, a suction nozzle 302, a positioning turntable 303, and a clamping assembly 304. The watch strap a to be processed is placed in the material tray 301, and the material tray 301 is driven to move by the Y-axis module A 305. The suction nozzle 302 is driven to rise and fall by the Z-axis module A 306, and the Z-axis module A 306 is connected to the X-axis module A 307. The suction nozzle 302 is used to suck the watch strap a in the material tray 301 and place it on the positioning turntable 303 for secondary positioning. Figure 8The positioning turntable 303 is provided with a positioning post 303a. The suction nozzle 302 places the watchband a on the positioning turntable 303 and moves until the end of the watchband a contacts the positioning post 303a and stops. The watchband a is then positioned. The suction nozzle 302 then re-sucks the watchband a and places it on the watchband placement seat 202. Before placing the watchband a, the watchband fixing clamp 203 on the watchband placement seat 202 is first opened by the clamp opening assembly 304. The clamp opening assembly 304 includes a clamp opening lifting cylinder 304a and a push head 304c connected to the clamp opening lifting cylinder 304a and driven by a clamp opening telescopic cylinder 304b. The push head 304c can push the push rod 203a to open the watchband fixing clamp 203, allowing the suction nozzle 302 to place the watchband a on the watchband placement seat 202. After the watchband a is lowered, the clamp opening assembly 304 is reset, and the watchband fixing clamp 203 clamps and fixes the watchband a under the action of the spring.

[0049] Reference Figure 4 、 Figure 9 、 Figure 10 The first threading mechanism 4 includes a first flattening mechanism 401, a first thread feeding machine 402, a first gripper robot 403, and a first threading machine 404.

[0050] The first flattening mechanism 401 includes an X-axis module B 401a, a Z-axis module B 401b connected to the X-axis module B 401a, and a pressure rod 401c connected to the Z-axis module B 402b. The module can drive the pressure rod 401c to move and press the strap a to prevent the strap a from moving.

[0051] The first wire feeder 402 includes a wire feeder 402a, a first threading seat 402b, a clamping seat 402c, a second threading seat 402d, and a threading and cutting shears 402e, which are arranged in a sequential order. The wire b from the wire feeder 402a passes through the first threading seat 402b, the clamping seat 402c, and the second threading seat 402d in sequence. The clamping seat 402c includes a clamping claw driven by a clamping cylinder to clamp the wire b. The threading and cutting shears 402e are mounted at the front end of the second threading seat 402d and can be raised to cut the wire b.

[0052] The first wire feeding machine 402 is used to provide wire b for the first gripper robot 403 to pull. The first gripper robot 403 includes a robot body 403a, a robot gripper assembly 403c connected to the robot body 403a and driven by a robot rotating cylinder 403b. The robot gripper assembly 403c can clamp the wire end and cooperate with the first threading machine 404 to perform the threading action.

[0053] Reference Figure 10The first threading machine 404 includes a hook 404b driven by a threading three-axis module 404a, a threading lifting cylinder 404c connected to the threading three-axis module 404a and movable in the XY axis direction, and a thread clamping claw assembly 404d connected to the threading lifting cylinder 404c. Figure 11 The crochet hook 404b is arranged on the left side of the strap placement seat 202, and a hook thread opening 8 is opened at the top of the crochet hook 404b.

[0054] The implementation action of the first threading mechanism 4 is to first press the watchband a through the first flattening mechanism 401, and the crochet needle 404b of the first threading machine 404 passes through the threading hole a0 on the left side of the watchband a, and the first clamping robot 403 clamps the thread end of the wire b from the first wire feeding machine 402 and passes it around the hook hole 8 of the crochet needle 404b. The module drives the crochet needle 404b and the thread to move downward, pass the thread through the threading hole a0 on the left, and pull the thread end to the bottom of the watchband a. Then the wire clamping claw assembly 404d clamps the wire b, and the threading lifting cylinder 404c drives the wire clamping claw assembly 404d and the thread to move downward, so that a distance is reserved between the wire clamping claw assembly 404d and the watchband placement seat 202, and then the first clamping claw robot 403 extends to between the wire clamping claw assembly 404d and the watchband placement seat 202, pulls the thread end and continues to pass around the crochet needle 404b. After repeating the threading action several times, the threading is completed. At this time, the thread end is clamped by the wire clamping claw assembly 404d, and the first clamping claw robot 403 first clamps the wire b led out by the first wire feeding machine 402. The threading and cutting scissors 402e of the first wire feeding machine 402 rise up to cut the wire b to cut the wire. Then, the first clamping claw robot 403 clamps the thread end at this end into one of the wire clamping parts 204a of the wire clamp 204, and then the first clamping claw robot 403 extends to between the wire clamping claw assembly 404d and the strap placement seat 202, clamps the thread end at the other end and clamps it into the other wire clamping part 204a of the wire clamp 204. At this time, all the threading actions are completed, and the strap a rotates with the turntable 2 to the next workstation for the welding process.

[0055] Reference Figure 4 、 Figure 12 The first ultrasonic welding mechanism 5 includes a first winding machine 501 , a first welding pressure head assembly 502 , and a first ultrasonic welding machine 503 .

[0056] Combine Figure 13 The first winding machine 501 includes a winding clamp assembly driven by a winding three-axis module 501a, and the winding clamp assembly includes a rotating base 501c driven by a winding rotating cylinder 501b, a first clamp 501d and a second clamp 501e spaced apart at the bottom of the rotating base 501c, and a telescopic block 501f arranged between the first clamp 501d and the second clamp 501e.

[0057] The first welding pressure head assembly 502 includes an X-axis module C 502a, a Y-axis module C 502b connected to the X-axis module C 502a, and a pressure head 502c connected to the Y-axis module C 502b.

[0058] The first ultrasonic welding machine 503 includes a Y-axis module D 503a, an ultrasonic welding head 503b connected to the Y-axis module D 503a, and a welding wire cutting shear 503d connected to the Y-axis module D 503a and driven by a welding telescopic cylinder 503c. When the Y-axis module D 503a drives the ultrasonic welding head 503b to extend, the welding wire cutting shear 503d also extends. Furthermore, the welding telescopic cylinder 503c can further extend the welding wire cutting shear 503d.

[0059] The first ultrasonic welding mechanism 5 performs the following actions: the first clamping jaw 501d of the first winding machine 501 first clamps one of the wire ends on the wire clamp 204; then the ultrasonic welding head 503b of the first ultrasonic welding machine 503 and the welding wire cutting shears 503d extend synchronously; the welding telescopic cylinder 503c drives the welding wire cutting shears 503d to extend further, and cuts off the excess length of the wire end outside the wire clamp 204; after cutting, the welding wire cutting shears 503d retracts; then the second clamping jaw 501e of the first winding machine 501 clamps the wire clamp 204 The other wire end on the strap a is moved, and then the first welding pressure head assembly 502 is actuated, driving the pressure head 502c to press the strap a, and the winding rotating cylinder 501b of the first winding machine 501 is actuated, and the first clamping jaw 501d and the second clamping jaw 501e rotate synchronously, so that the two wires are entangled with each other. After the winding is completed, the telescopic block 501f in the middle of the clamping jaw drops and rests between the two wires to make the wires taut; finally, the ultrasonic welding head 503b of the first ultrasonic welding machine 503 extends out to weld the wire ends, welding the two wires together to complete the ultrasonic welding operation.

[0060] Reference Figure 4 、 Figure 14 The second threading mechanism 6 includes a second flattening mechanism 601, a second thread feeding machine 602, a second gripper robot 603, and a second threading machine 604. The second threading mechanism 6 has the same structure as the first threading mechanism 4. The hook of the second threading machine 604 is set on the right side of the strap placement seat 202. Figure 15The second threading mechanism 6 operates in the same manner as the first threading mechanism 4 . The second flattening mechanism 601 is used to hold down the watchband a, the second wire feeder 602 is used to provide the wire b for the second gripper robot 603 to pull, and the second threading mechanism 604 is used to cooperate with the second gripper robot 603 to thread the wire through the threading hole a0 on the right side of the watchband a. After threading, the second wire feeder 602 disconnects the wire, and the second gripper robot 603 grabs the wire ends at both ends and clamps them to the wire clamps 204 on the watchband holder 202. After all threading operations are completed, the watchband a rotates with the turntable 2 to the next workstation for welding.

[0061] Reference Figure 4 、 Figure 16 The second ultrasonic welding mechanism 7 comprises a second winding machine 701, a second welding head assembly 702, and a second ultrasonic welder 703. The second ultrasonic welding mechanism 7 shares the same structure as the first ultrasonic welding mechanism 5, with the second ultrasonic welder 703 also mounted on the X-axis module E. The second ultrasonic welding mechanism 7 operates in conjunction with the first ultrasonic welding mechanism 5, with the second ultrasonic welder 703 also moving via the X-axis module E. Specifically, the second ultrasonic welding mechanism 7 operates as follows: the second winding machine 701 clamps two wire ends from the wire clamp 204, rotates and winds them, and straightens the two strands. The second welding head assembly 702 presses against the watchband a during winding. The second ultrasonic welder 703 cuts off any excess wire outside the clamp 204 during the clamping process, and finally welds the wound wire ends. The watchband, having completed all the steps, is unloaded by the loading and unloading mechanism 3.

[0062] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the present invention and implement it accordingly. They are not intended to limit the scope of protection of the present invention. Any modifications made within the spirit of the main technical solution of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. An automatic threading device for a flexible watch strap, characterized by: The machine comprises a frame (1), a turntable (2) is provided in the middle of the frame (1), and a loading and unloading mechanism (3), a first threading mechanism (4), a first ultrasonic welding mechanism (5), a second threading mechanism (6), and a second ultrasonic welding mechanism (7) are provided around the turntable (2); The turntable (2) comprises a turntable body (201), a plurality of watchband placement seats (202) arranged on the turntable body (201), each of the watchband placement seats (202) being elastically mounted with a watchband fixing clip (203), and each of the outer ends of the watchband placement seats (202) being provided with a wire clip (204); The loading and unloading mechanism (3) comprises a material tray (301), a suction nozzle (302), a positioning turntable (303), and a clamping assembly (304); the watch strap (a) to be processed is placed in the material tray (301) for loading; the suction nozzle (302) is used to suck the watch strap (a) and place it on the positioning turntable (303) for secondary positioning; the clamping assembly (304) is used to open the watch strap fixing clamp (203) so that the suction nozzle (302) can suck the positioned watch strap (a) again for placement; The first threading mechanism (4) comprises a first flattening mechanism (401), a first wire feeding machine (402), a first gripping robot (403), and a first threading machine (404); the first flattening mechanism (401) is used to press the watchband (a); the first wire feeding machine (402) is used to provide wire (b) for the first gripping robot (403) to pull; the first threading machine (404) is used to cooperate with the first gripping robot (403) to thread the wire in the threading hole (a0) on the left side of the watchband (a); after threading is completed, the first wire feeding machine (402) cuts the wire, and the ends of the wires at both ends are grabbed by the first gripping robot (403) and clamped on the wire clamps (204) of the watchband placement seat (202). The first ultrasonic welding mechanism (5) comprises a first winding machine (501), a first welding pressure head assembly (502), and a first ultrasonic welding machine (503); the first winding machine (501) is used to clamp two wire ends from the wire clamp (204), rotate and wind the wires, and straighten the two wires; the first welding pressure head assembly (502) is used to press the watchband (a) during winding; the first ultrasonic welding machine (503) is used to cut off the excess wire ends outside the wire clamp (204) during the process of clamping the wire ends, and weld the wound wire ends; The second threading mechanism (6) comprises a second flattening mechanism (601), a second wire feeding machine (602), a second gripping robot (603), and a second threading machine (604); the second flattening mechanism (601) is used to press the watchband (a); the second wire feeding machine (602) is used to provide wire (b) for the second gripping robot (603) to pull; the second threading machine (604) is used to cooperate with the second gripping robot (603) to thread the wire in the threading hole (a0) on the right side of the watchband (a); after threading is completed, the second wire feeding machine (602) cuts the wire, and the thread ends at both ends are grabbed by the second gripping robot (603) and clamped on the wire clamps (204) of the watchband placement seat (202) respectively; The second ultrasonic welding mechanism (7) comprises a second winding machine (701), a second welding pressure head assembly (702), and a second ultrasonic welding machine (703); the second winding machine (701) is used to clamp two wire ends from the wire clamp (204) respectively, perform rotational winding, and straighten the two wire strands; the second welding pressure head assembly (702) is used to press the watch strap (a) during winding; and the second ultrasonic welding machine (703) is used to cut off the excess length of the wire ends outside the wire clamp (204) during the process of clamping the wire ends, and to weld the wound wire ends.

2. The flexible watchband automatic threading device according to claim 1, characterized in that: The turntable body (201) is driven to rotate by a turntable motor (205), and a plurality of the watchband placement seats (202) are distributed at equal angles around the center of the turntable body (201); the watchband fixing clamp (203) is installed in the watchband placement seat (202) through a spring, a push rod (203a) at one end of the watchband fixing clamp (203) extends out of one side of the watchband placement seat (202), and two vertical positioning blocks (203b) arranged at intervals at the other end extend out of the upper surface of the watchband placement seat (202); and the upper end of the wire clamp (204) is provided with two wire clamping portions (204a) arranged at intervals.

3. The flexible watchband automatic threading device according to claim 2, characterized in that: The material tray (301) is driven to move by the Y-axis module A (305), and the suction nozzle (302) is driven to rise and fall by the Z-axis module A (306), and the Z-axis module A (306) is connected to the X-axis module A (307); a positioning column (303a) is provided on the positioning turntable (303), and the positioning column (303a) is used to abut against the end of the watchband (a) to achieve positioning of the watchband (a); the clamping assembly (304) includes a clamping lifting cylinder (304a), and a plug (304c) connected to the clamping lifting cylinder (304a) and driven to extend and retract by the clamping telescopic cylinder (304b), and the plug (304c) can push the push rod (203a) to open the watchband fixing clamp (203).

4. The flexible watchband automatic threading device according to claim 1, characterized in that: The first flattening mechanism (401) includes an X-axis module B (401a), a Z-axis module B (401b) connected to the X-axis module B (401a), and a pressure rod (401c) connected to the Z-axis module B (402b); the first thread feeding machine (402) includes a thread feeding device (402a), a first threading seat (402b), a thread clamping seat (402c), a second threading seat (402d), and a threading and thread cutting scissors (402e) arranged in sequence, wherein the thread clamping seat (402c) includes a thread clamping claw driven by a thread clamping cylinder, and the threading and thread cutting scissors (402e) can be lifted and lowered on the second threading seat (402b). 02d); the first gripper robot (403) comprises a robot body (403a), a robot gripper assembly (403c) connected to the robot body (403a) and driven by a robot rotary cylinder (403b); the first threading machine (404) comprises a hook needle (404b) driven by a threading three-axis module (404a), a threading lifting cylinder (404c) connected to the threading three-axis module (404a) and movable in the XY axis direction, and a thread clamping gripper assembly (404d) connected to the threading lifting cylinder (404c), wherein a thread hooking opening (8) is provided at the top end of the hook needle (404b).

5. The flexible watchband automatic threading device according to claim 1, characterized in that: The first winding machine (501) comprises a winding clamping jaw assembly driven by a winding three-axis module (501a), the winding clamping jaw assembly comprises a rotating seat (501c) driven by a winding rotating cylinder (501b), a first clamping jaw (501d) and a second clamping jaw (501e) spaced apart at the bottom of the rotating seat (501c), and a telescopic block (501f) arranged between the first clamping jaw (501d) and the second clamping jaw (501e); the first welding pressure head assembly (502) comprises an X-axis module The first ultrasonic welding machine (503) comprises a Y-axis module D (503a), an ultrasonic welding head (503b) connected to the Y-axis module D (503a), and a welding wire-breaking scissors (503d) connected to the Y-axis module D (503a) and driven by a welding telescopic cylinder (503c).

6. The flexible watchband automatic threading device according to claim 4, characterized in that: The second threading mechanism (6) has the same structure as the first threading mechanism (4), and the hooks of the second threading machine (604) and the first threading machine (404) are respectively arranged on both sides of the watchband placement seat (202).

7. The flexible watchband automatic threading device according to claim 5, characterized in that: The second ultrasonic welding mechanism (7) has the same structure as the first ultrasonic welding mechanism (5), and the second ultrasonic welding machine (703) of the second ultrasonic welding mechanism (7) is also installed on the X-axis module E.

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