Ultrasonic welding mechanism for watchband production

Abstract

The invention discloses an ultrasonic welding mechanism for watchband production, which comprises a turntable, a fixed seat for placing a watchband is arranged on the turntable, and a wire clamp for clamping two wire ends respectively is arranged on the fixed seat; a winding machine, a welding pressure head assembly and an ultrasonic welding machine are arranged on one side of the rotating disc, the winding machine comprises a winding clamping jaw assembly installed on a three-axis module, and the winding clamping jaw assembly is used for clamping two wire ends from a wire clamp respectively, winding is implemented through rotation, and two strands of wires are stretched straight; the welding pressure head assembly is used for pressing the watchband to prevent the watchband from moving during winding; the ultrasonic welding machine comprises an ultrasonic welding assembly and a scissor assembly, the scissor assembly is used for cutting off the redundant wire end on the outer side of the wire clamp in the process that the wire end is clamped by the winding clamping jaw assembly, and the ultrasonic welding assembly is used for welding the wire end. The watchband wire end welding device can automatically weld the watchband wire end, saves time and labor, is good in welding effect and firm in welding, and greatly improves the product quality.

Description

Technical Field

[0001] The invention relates to the technical field of watch strap processing, and in particular to an ultrasonic welding mechanism used for watch strap production. Background Art

[0002] The initial structure of the existing strap a is as follows Figure 1 As shown, the final product is Figure 2 As shown, during the processing, it is necessary to first thread the wire in the threading hole a0, and then weld the wire ends. Currently, there is no automated welding equipment, manual operation is time-consuming, labor-intensive, inefficient, poor welding effect, and the wire ends are easy to loosen, which cannot guarantee the production quality of the product. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an ultrasonic welding mechanism for watch strap production, aiming to solve the technical problems existing in the prior art that there is currently no automated welding equipment, manual operation is time-consuming, labor-intensive and inefficient, the welding effect is poor, the thread ends are easily loosened, and the product production quality cannot be guaranteed.

[0004] The technical solution of the present invention is: an ultrasonic welding mechanism for watch strap production, comprising a turntable, a fixed seat for placing the watch strap is provided on the turntable, and a wire clamp for clamping two wire ends respectively is provided on the fixed seat; a winding machine, a welding pressure head assembly, and an ultrasonic welding machine are provided on one side of the turntable, the winding machine comprises a winding jaw assembly installed on a three-axis module, the winding jaw assembly is used to clamp two wire ends respectively from the wire clamp, implement winding by rotation and straighten the two strands of wire; the welding pressure head assembly is used to press the watch strap to prevent it from moving during winding; the ultrasonic welding machine comprises an ultrasonic welding assembly and a scissors assembly, the scissors assembly is used to cut off the excess length of the wire end outside the wire clamp during the process of the winding jaw assembly clamping the wire end, and the ultrasonic welding assembly is used to weld the wire end.

[0005] Furthermore, the fixing seat in the present invention includes a fixing seat body, a fixing clip installed on the fixing seat body through a spring for clamping the watch strap, the wire clamp is installed at the end of the fixing seat body, and the upper end of the wire clamp is provided with two spaced-apart wire clamping parts.

[0006] Furthermore, the three-axis module in the present invention includes a first X-axis module, a Z-axis module connected to the first X-axis module, and a first Y-axis module connected to the Z-axis module, and the winding clamp assembly is connected to the first Y-axis module; the winding clamp assembly includes a rotating seat driven by a rotating cylinder, a first clamp and a second clamp arranged at intervals at the bottom of the rotating seat, and a telescopic block arranged between the first clamp and the second clamp and driven by a first telescopic cylinder.

[0007] Furthermore, the welding pressure head assembly in the present invention includes a second X-axis module, a second Y-axis module connected to the second X-axis module, and a pressure plate connected to the second Y-axis module, and the length of the pressure plate extends in a direction perpendicular to the fixing seat.

[0008] Furthermore, the ultrasonic welding assembly in the present invention includes a third Y-axis module and an ultrasonic welding head connected to the third Y-axis module, and the length of the ultrasonic welding head extends in a direction perpendicular to the fixing seat.

[0009] Furthermore, the scissors assembly in the present invention is connected to the third Y-axis module, and the scissors assembly includes scissors driven by a second telescopic cylinder, and the scissors are located on one side of the ultrasonic welding head and are arranged parallel to the ultrasonic welding head.

[0010] Compared with the prior art, the present invention has the following advantages: the ultrasonic welding mechanism of the present invention can automatically weld the thread ends of the watch strap, and in the process of using the winding machine to clamp the two thread ends respectively, the scissor assembly of the ultrasonic welding machine can synchronously cut off the thread ends of excess length, and then after the welding pressure head assembly is used to press the watch strap, the winding machine starts to rotate and wind the wire, and after the winding is completed, the middle telescopic block extends downward and rests between the two strands of wire to make the wire taut, and finally the ultrasonic welding head is used to weld the thread ends to weld the two strands of wire together. Compared with manual operation, the present invention can save time and effort to complete the thread end welding, the welding effect is good, the welding is firm, and the product quality is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the initial structure of a watch strap in the prior art;

[0012] Figure 2 It is a schematic diagram of the finished product structure of a watch strap in the prior art;

[0013] Figure 3 It is a structural schematic diagram of the present invention;

[0014] Figure 4 It is a schematic diagram of the specific structure of the fixing seat described in the present invention;

[0015] Figure 5 It is a schematic diagram of the specific structure of the winding machine described in the present invention;

[0016] Figure 6 It is a schematic diagram of the specific structure of the winding clamp assembly described in the present invention;

[0017] Figure 7 It is a schematic diagram of the specific structure of the welding pressure head assembly described in the present invention;

[0018] Figure 8It is a schematic diagram of the specific structure of the ultrasonic welding machine described in the present invention.

[0019] in:

[0020] 1. Turntable;

[0021] 2. Fixed seat; 201. Fixed seat body; 202. Fixed clip;

[0022] 3. Wire clamp; 3a. Wire clamping part;

[0023] 4. Winding machine; 401, three-axis module; 401a, first X-axis module; 401b, Z-axis module; 401c, first Y-axis module; 402, winding clamp assembly; 402a, rotating cylinder; 402b, rotating seat; 402c, first clamp; 402d, second clamp; 402e, telescopic block;

[0024] 5. Welding pressure head assembly; 501. Second X-axis module; 502. Second Y-axis module; 503. Pressing plate;

[0025] 6. Ultrasonic welding machine; 601. Ultrasonic welding assembly; 601a. ​​Third Y-axis module; 601b. Ultrasonic welding head; 602. Scissor assembly; 602a. Second telescopic cylinder; 602b. Scissors;

[0026] a, watch strap; a0, threading hole. DETAILED DESCRIPTION

[0027] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0028] Example:

[0029] Combination Figures 3 to 8 FIG. 1 is a specific embodiment of an ultrasonic welding mechanism for watch strap production according to the present invention, referring to FIG. Figure 3 It mainly includes a turntable 1, on which a fixing seat 2 for placing a watch strap a is provided, combined with Figure 4 The fixing seat 2 includes a fixing seat body 201, a fixing clip 202 installed on the fixing seat body 201 through a spring for clamping the watchband a, and the fixing clip 202 can be opened by pushing it inward. After the watchband a is placed on the fixing seat body 201, the fixing clip 202 is released, and the watchband a can be fixed under the action of the spring. A wire clamp 3 is provided at the end of the fixing seat body 201 of the fixing seat 2, and two wire clamping parts 3a arranged at intervals are opened at the upper end of the wire clamp 3, and the two wire ends of the wire threaded in the threading hole a0 of the watchband a are respectively clamped in the two wire clamping parts 3a.

[0030] A winding machine 4, a welding head assembly 5, and an ultrasonic welding machine 6 are provided on one side of the turntable 1. Figure 5The winding machine 4 includes a winding clamp assembly 402 mounted on a three-axis module 401, the three-axis module 401 includes a first X-axis module 401a, a Z-axis module 401b connected to the first X-axis module 401a, and a first Y-axis module 401c connected to the Z-axis module 401b, and the winding clamp assembly 402 is connected to the first Y-axis module 401c. Specifically, in combination Figure 5 , Figure 6 The winding clamp assembly 402 includes a rotating seat 402b driven by a rotating cylinder 402a, a first clamp 402c and a second clamp 402d arranged at intervals at the bottom of the rotating seat 402b, and a telescopic block 402e arranged between the first clamp 402c and the second clamp 402d and driven by a first telescopic cylinder. The first clamp 402c and the second clamp 402d are used to clamp the two wire ends on the wire clamp 3 respectively. The rotating cylinder 402a can drive the rotating seat 402b to rotate, and then drive the first clamp 402c and the second clamp 402d to rotate, so that the two wires are entangled with each other. After the winding is completed, the first telescopic cylinder can drive the telescopic block 402e to descend and rest between the two wires to make the wires tight, which is convenient for welding to be more firm.

[0031] Reference Figure 7 The welding pressure head assembly 5 includes a second X-axis module 501, a second Y-axis module 502 connected to the second X-axis module 501, and a pressing plate 503 connected to the second Y-axis module 502, wherein the length of the pressing plate 503 extends in a direction perpendicular to the fixing seat 2. The second X-axis module 501 and the second Y-axis module 502 can drive the pressing plate 503 to move, and press the strap a to prevent it from moving when winding.

[0032] Reference Figure 8 The ultrasonic welding machine 6 includes an ultrasonic welding assembly 601 and a scissor assembly 602. The ultrasonic welding assembly 601 includes a third Y-axis module 601a and an ultrasonic welding head 601b connected to the third Y-axis module 601a. ​​The length of the ultrasonic welding head 601b extends in a direction perpendicular to the fixing seat 2. The third Y-axis module 601a can drive the ultrasonic welding head 601b to extend to weld the wire head. The scissor assembly 602 is connected to the third Y-axis module 601a. ​​When the ultrasonic welding head 601b extends, the scissor assembly 602 extends synchronously. The scissor assembly 602 includes a scissor 602b driven by a second telescopic cylinder 602a. The scissor 602b is located on one side of the ultrasonic welding head 601b and is arranged parallel to the ultrasonic welding head 601b. The second telescopic cylinder 602a can drive the scissor 602b to extend further, and cut off the excess length of the wire head outside the wire clamp 3 in the process of the winding clamp assembly 402 clamping the wire head.

[0033] When the ultrasonic welding mechanism of the present invention is working, the winding clamp assembly 402 of the winding machine 4 moves to the wire clamp 3, and the first clamp 402c first clamps one of the wire ends on the wire clamp 3, then the ultrasonic welding head 601b of the ultrasonic welding machine 6 and the scissors assembly 602 are synchronously extended to one side of the fixed seat 2 and the wire clamp 3, and the second telescopic cylinder 602a drives the scissors 602b to extend further to cut off the excess length of the wire end on the outside of the wire clamp 3, and the scissors 602b retract after cutting; then the winding clamp assembly 402 of the winding machine 4 rotates, and the second telescopic cylinder 602a drives the scissors 602b to extend further to cut off the excess length of the wire end on the outside of the wire clamp 3. After cutting, the scissors 602b retracts; then the winding clamp assembly 402 of the winding machine 4 rotates, and the second The clamp 402d clamps the other wire end on the wire clamp 3, and then the welding pressure head assembly 5 is activated, and the pressure plate 503 is moved to press the strap a. Then the rotating cylinder 402a of the winding machine 4 is activated, and the first clamp 402c and the second clamp 402d rotate synchronously, so that the two strands of wire are entangled with each other. After the winding is completed, the first telescopic cylinder drives the telescopic block 402e to descend and rest between the two strands of wire to make the wire taut; finally, the ultrasonic welding head 601b of the ultrasonic welding machine 6 extends out to weld the wire end, welding the two strands of wire together to complete the ultrasonic welding operation.

[0034] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any modifications made according to the spirit of the main technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrasonic welding mechanism for watch strap production, characterized in that: The invention comprises a turntable (1), wherein a fixing seat (2) for placing a watch strap (a) is provided on the turntable (1), and a wire clamp (3) for clamping two wire ends respectively is provided on the fixing seat (2); a winding machine (4), a welding pressure head assembly (5), and an ultrasonic welding machine (6) are provided on one side of the turntable (1), wherein the winding machine (4) comprises a winding clamping claw assembly (402) mounted on a three-axis module (401), and the winding clamping claw assembly (402) is used to clamp two wire ends respectively from the wire clamp (3) and the welding pressure head assembly (5). The two wire ends are wound by rotating and the two wire strands are straightened; the welding pressure head assembly (5) is used to press the strap (a) to prevent it from moving during winding; the ultrasonic welding machine (6) comprises an ultrasonic welding assembly (601) and a scissors assembly (602); the scissors assembly (602) is used to cut off the excess length of the wire end outside the wire clamp (3) when the winding clamp jaw assembly (402) clamps the wire end; and the ultrasonic welding assembly (601) is used to weld the wire end.

2. The ultrasonic welding mechanism for watch strap production according to claim 1, characterized in that: The fixing seat (2) comprises a fixing seat body (201), a fixing clip (202) mounted on the fixing seat body (201) via a spring and used for clamping a watch band (a), the wire clip (3) being mounted at the end of the fixing seat body (201), and the upper end of the wire clip (3) being provided with two wire clamping portions (3a) arranged at intervals.

3. The ultrasonic welding mechanism for watch strap production according to claim 1, characterized in that: The three-axis module (401) includes a first X-axis module (401a), a Z-axis module (401b) connected to the first X-axis module (401a), and a first Y-axis module (401c) connected to the Z-axis module (401b); the winding clamp assembly (402) is connected to the first Y-axis module (401c); the winding clamp assembly (402) includes a rotating seat (402b) driven by a rotating cylinder (402a), a first clamp (402c) and a second clamp (402d) arranged at intervals at the bottom of the rotating seat (402b), and a telescopic block (402e) arranged between the first clamp (402c) and the second clamp (402d) and driven by a first telescopic cylinder.

4. The ultrasonic welding mechanism for watch strap production according to claim 1, characterized in that: The welding pressure head assembly (5) comprises a second X-axis module (501), a second Y-axis module (502) connected to the second X-axis module (501), and a pressure plate (503) connected to the second Y-axis module (502), wherein the length of the pressure plate (503) extends in a direction perpendicular to the fixing seat (2).

5. The ultrasonic welding mechanism for watch strap production according to claim 1, characterized in that: The ultrasonic welding assembly (601) comprises a third Y-axis module (601a) and an ultrasonic welding head (601b) connected to the third Y-axis module (601a), wherein the length of the ultrasonic welding head (601b) extends in a direction perpendicular to the fixing seat (2).

6. The ultrasonic welding mechanism for watch strap production according to claim 5, characterized in that: The scissor assembly (602) is connected to the third Y-axis module (601a), and the scissor assembly (602) includes a scissor (602b) driven by a second telescopic cylinder (602a), and the scissor (602b) is located on one side of the ultrasonic welding head (601b) and is arranged parallel to the ultrasonic welding head (601b).

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