Mechanical hand for watchband production

Abstract

The utility model belongs to watchband production technical field, concretely is a kind of watchband production and uses mechanical hand, including watchband injection molding machine, the upper portion of watchband injection molding machine is provided with mounting bracket, the utility model realizes the flexible clamping to plastic watchband by air bag clamping mechanism, air bag in clamping block can be closely attached watchband surface after inflating through air inlet pipe, utilize the elastic property of air bag buffer clamping force, avoid the extrusion deformation or surface damage caused by rigid contact to plastic watchband, simultaneously, the antiskid strip of air bag outer surface strengthens the stability of clamping, prevent watchband from sliding in the process of transfer, ensure the soundness of product in the process of taking material and transfer, and clamping spacing adjusting mechanism is driven by drive motor and drives bidirectional screw rod, the spacing of multiple sets of clamping blocks can be adjusted synchronously, and fixed plate two can slide along the plugboard and be locked by fixed mechanism, different sizes of watchband can be quickly adapted.

Description

Technical Field

[0001] This utility model relates to the field of watch strap production technology, specifically to a robotic arm for watch strap production. Background Technology

[0002] Injection molding of watch straps involves heating and melting thermoplastic materials in a precision mold and then injecting them into the mold to form the final product. This multi-injection molding technique allows for the creation of single-color, two-color, or three-color integrated structures. Its advantages lie in achieving complex shapes and multi-material combinations through one or more injection stages, while also providing high elasticity, wear resistance, environmental friendliness, and seamless color blending, significantly improving production efficiency and yield. Robotic arms in injection-molded watch strap production automate part handling and assembly, further enhancing efficiency, reducing costs, and ensuring product quality stability.

[0003] Existing robotic arms used in watch strap production mostly employ rigid clamping structures. Improper control of clamping force can easily lead to scratches, deformation, and other damage to the surface of plastic watch straps, affecting the product's appearance and structural integrity. On the other hand, existing robotic arms do not offer flexible adjustment of clamping spacing for watch straps of different sizes and specifications, making it difficult to quickly adapt to diverse production needs. Therefore, we propose a robotic arm for watch strap production. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a robotic arm for watch strap production. It achieves flexible clamping of plastic watch straps through an airbag clamping mechanism. The clamping spacing adjustment mechanism, driven by a drive motor, uses a bidirectional screw to simultaneously adjust the spacing of multiple clamping blocks. Furthermore, the fixing plate can slide along the insert plate and be locked by a fixing mechanism, enabling rapid adaptation to watch straps of different sizes and solving the problems mentioned earlier.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a robotic arm for watch strap production, comprising a watch strap injection molding machine, a mounting frame above the watch strap injection molding machine, a front-to-back moving module mounted on the top left side of the mounting frame, a sliding plate 1 slidably mounted on the top of the front-to-back moving module, a slide rail 1 fixedly connected to the top right side of the mounting frame, a sliding plate 3 slidably connected to the slide rail 1, a left-to-right moving module between the left and right sides of the mounting frame, the bottom left and right sides of the left-to-right moving module respectively fixedly mounted on the sliding plate 1 and the sliding plate 3, a sliding plate 2 slidably mounted on the top of the left-to-right moving module, a lifting module mounted on the top front side of the sliding plate 2, a connecting plate fixedly connected to the bottom output end of the lifting module, a rotating cylinder mounted on the bottom of the connecting plate, a side-tilting cylinder mounted on the bottom output end of the rotating cylinder, a U-shaped connecting frame fixedly connected to the bottom output end of the side-tilting cylinder, and a clamping component for clamping the watch strap mounted on the bottom of the U-shaped connecting frame.

[0006] Preferably, the clamping assembly includes a first fixing plate, which is fixedly connected to the bottom side of the U-shaped connecting frame. Insert plates are fixedly connected to the front and rear sides of the first fixing plate. A second fixing plate is slidably sleeved on each of the two sets of insert plates. Sliding grooves are provided on the left and right sides of the first fixing plate and the two sets of second fixing plates. Clamping blocks are slidably connected inside each of the six sets of first sliding grooves. An airbag clamping mechanism is provided inside the clamping block. A clamping distance adjustment mechanism is installed inside the U-shaped connecting frame. A fixing mechanism is also provided between the insert plates and the second fixing plates.

[0007] Preferably, the airbag clamping mechanism includes a placement groove, which is formed on the clamping block. An airbag is disposed inside the placement groove. An air intake channel is also formed inside the clamping block. The bottom end of the air intake channel is fixedly connected to the airbag, and the top end of the air intake channel is fixedly connected to an air intake pipe. Several anti-slip strips are fixedly connected to the outer surface of the airbag.

[0008] Preferably, the clamping spacing adjustment mechanism includes a drive motor, which is fixedly installed on the left side of the U-shaped connecting frame. A bidirectional screw is rotatably passed between the left and right sides of the U-shaped connecting frame. The output shaft end of the drive motor is fixedly connected to the left end of the bidirectional screw. Sliding blocks are threaded on both the left and right sides of the bidirectional screw. Fixed rods are fixedly connected to the front and rear sides of the clamping block located in the middle. The clamping blocks located on the front and rear sides are slidably sleeved on the fixed rods, and the bottom of the sliding block is slidably sleeved on the fixed rod.

[0009] Preferably, the fixing mechanism includes a plurality of hexagon socket head cap screws, and a plurality of threaded holes are provided through the fixing plate 2. The hexagon socket head cap screws are threaded into the threaded holes, and the bottom end of the hexagon socket head cap screws abuts against the outer surface of the insert plate.

[0010] Preferably, an air outlet is provided through the middle of both the first fixing plate and the two sets of second fixing plates, and the input end of the air outlet is fixedly connected to an air inlet pipe.

[0011] Preferably, the inner wall of the sliding groove one is fixedly connected to the front and rear sides of the sliding rail two, and the clamping block is provided with the sliding groove two on the front and rear sides of the sliding groove two, and the sliding rail two is slidably connected to the sliding groove two.

[0012] Preferably, image recognition sensors are installed on both the front and rear sides of the bottom of the fixing plate.

[0013] Preferably, a controller is installed on the front side of the watch strap injection molding machine.

[0014] Preferably, a collection box is provided at the bottom front side of the mounting bracket.

[0015] This utility model provides a robotic arm for watch strap production. Compared with the prior art, it has the following advantages: 1. This robotic arm for watch strap production achieves flexible clamping of plastic watch straps through an airbag clamping mechanism. The airbag inside the clamping block is inflated through the air inlet pipe and can fit tightly against the surface of the watch strap. The elasticity of the airbag buffers the clamping force, avoiding squeezing deformation or surface damage to the plastic watch strap caused by hard contact. At the same time, the anti-slip strip on the outer surface of the airbag enhances the stability of the clamping and prevents the watch strap from slipping during the transfer process, ensuring the integrity of the product during material handling and transfer.

[0016] 2. This robotic arm for watch strap production features a clamping spacing adjustment mechanism that uses a drive motor to drive a bidirectional screw, allowing for simultaneous adjustment of the spacing between multiple clamping blocks. The second fixing plate can slide along the insert plate and be locked by a fixing mechanism, enabling rapid adaptation to watch straps of different sizes. Furthermore, the forward and backward movement module, left and right movement module, and lifting module, combined with a rotating cylinder and a side-tilting cylinder, enable multi-directional movement and posture adjustment of the robotic arm within space. This allows for precise transfer from the injection molding machine to a designated location, reducing manual operation and improving the level of production automation and the overall process continuity. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the top structure of the mounting bracket of this utility model; Figure 3 This is a schematic diagram of the clamping component structure of this utility model; Figure 4 A top view of the clamping assembly of this utility model without the U-shaped connecting frame; Figure 5 This is a schematic cross-sectional view of the airbag clamping mechanism of this utility model; Figure 6 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Watchband injection molding machine; 2. Mounting bracket; 3. Collection box; 4. Controller; 5. Front and rear moving module; 6. Sliding plate one; 7. Left and right moving module; 8. Sliding plate two; 9. Lifting module; 10. Slide rail one; 11. Sliding plate three; 12. U-shaped connecting frame; 13. Fixing plate one; 14. Insert plate; 15. Fixing plate two; 16. Drive motor; 17. Bidirectional screw; 18. Sliding block; 19. Clamping block; 20. Fixing rod; 21. Sliding groove one; 22. Air inlet pipe; 23. Threaded hole; 24. Hex socket head cap screw; 25. Image recognition sensor; 26. Air outlet; 27. Sliding rail two; 28. Sliding groove two; 29. ​​Air inlet channel; 30. Air inlet pipe; 31. Placement slot; 32. Airbag; 33. Anti-slip strip; 34. Connecting plate; 35. Rotating cylinder; 36. Side tilting cylinder. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-6 This utility model provides a technical solution: a robotic arm for watch strap production, including a watch strap injection molding machine 1, a mounting frame 2 above the watch strap injection molding machine 1, a front-back moving module 5 mounted on the top left side of the mounting frame 2, a sliding plate 6 slidably mounted on the top of the front-back moving module 5, a slide rail 10 fixedly connected to the top right side of the mounting frame 2, a sliding plate 11 slidably connected on the slide rail 10, a left-right moving module 7 between the left and right sides of the mounting frame 2, and left and right sides of the bottom of the left-right moving module 7 respectively fixedly mounted... On sliding plate 1 6 and sliding plate 3 11, sliding plate 2 8 is slidably mounted on the top of sliding plate 7. Lifting module 9 is mounted on the front top of sliding plate 2 8. Connecting plate 34 is fixedly connected to the bottom output end of lifting module 9. Rotating cylinder 35 is mounted on the bottom of connecting plate 34. Side tilting cylinder 36 is mounted on the bottom output end of rotating cylinder 35. U-shaped connecting frame 12 is fixedly connected to the bottom output end of side tilting cylinder 36. Clamping component for clamping watch strap is mounted on the bottom of U-shaped connecting frame 12.

[0021] In the watch strap production process, the mounting frame 2 provides support for the overall structure. The forward and backward moving module 5 can drive the sliding plate 6 to slide back and forth. Since the bottom left and right sides of the left and right moving module 7 are fixed on the sliding plate 6 and the sliding plate 11 respectively, and the sliding plate 11 is slidably connected to the slide rail 10, the forward and backward moving module 5 can drive the left and right moving module 7 to move back and forth as a whole when it is working. The left and right moving module 7 can drive the sliding plate 8 to slide left and right, thereby driving the lifting module 9 to move left and right. The lifting module 9 can drive the rotating cylinder 35, the side-position flipping cylinder 36, the U-shaped connecting frame 12 and the clamping assembly to perform lifting and lowering movements through the connecting plate 34 at its bottom output end. The rotating cylinder 35 can drive the side-position flipping cylinder 36, the U-shaped connecting frame 12 and the clamping assembly to rotate. The side-position flipping cylinder 36 can drive the U-shaped connecting frame 12 and the clamping assembly to perform side-position flipping. Finally, the clamping assembly realizes the clamping and transfer operation of the watch strap.

[0022] The clamping assembly includes a first fixing plate 13, which is fixedly connected to the bottom side of the U-shaped connecting frame 12. Insert plates 14 are fixedly connected to the front and rear sides of the first fixing plate 13. The second fixing plate 15 is slidably sleeved on both sets of insert plates 14. Sliding grooves 21 are opened on the left and right sides of the first fixing plate 13 and the two sets of second fixing plates 15. Clamping blocks 19 are slidably connected inside the six sets of sliding grooves 21. An airbag clamping mechanism is provided inside the clamping block 19. A clamping distance adjustment mechanism is installed inside the U-shaped connecting frame 12. A fixing mechanism is also provided between the insert plates 14 and the second fixing plates 15.

[0023] The airbag clamping mechanism includes a placement groove 31, which is formed on the clamping block 19. An airbag 32 is disposed inside the placement groove 31. An air intake channel 29 is also formed inside the clamping block 19. The bottom end of the air intake channel 29 is fixedly connected to the airbag 32, and the top end of the air intake channel 29 is fixedly connected to an air intake pipe 30. Several anti-slip strips 33 are fixedly connected to the outer surface of the airbag 32.

[0024] The clamping spacing adjustment mechanism includes a drive motor 16, which is fixedly installed on the left side of the U-shaped connecting frame 12. A bidirectional screw 17 is rotatably passed between the left and right sides of the U-shaped connecting frame 12. The output shaft end of the drive motor 16 is fixedly connected to the left end of the bidirectional screw 17. Sliding blocks 18 are threaded on both the left and right sides of the bidirectional screw 17. Fixed rods 20 are fixedly connected to the front and rear sides of the clamping block 19 located in the middle. The clamping blocks 19 located on the front and rear sides are slidably sleeved on the fixed rods 20, and the bottom of the sliding block 18 is slidably sleeved on the fixed rods 20.

[0025] The fixing mechanism includes several hexagon socket head cap screws 24. Several threaded holes 23 are provided through the fixing plate 2 15. The hexagon socket head cap screws 24 are threaded into the threaded holes 23, and the bottom end of the hexagon socket head cap screws 24 abuts against the outer surface of the insert plate 14.

[0026] An air outlet 26 is provided through the middle of the fixed plate 13 and the two sets of fixed plates 15, and the input end of the air outlet 26 is fixedly connected to the air inlet pipe 22.

[0027] The inner wall of the sliding groove 21 is fixedly connected to the front and rear sides of the sliding rail 27, and the clamping block 19 is provided with the sliding groove 28 on the front and rear sides. The sliding rail 27 is slidably connected to the sliding groove 28.

[0028] Image recognition sensors 25 are installed on the front and rear sides of the bottom of the fixed plate 13.

[0029] When the clamping assembly is in operation, the first fixing plate 13 is fixed by the U-shaped connecting frame 12, and the second fixing plate 15 is slidably sleeved on the front and rear sides of the first fixing plate 13 by the insert plate 14. The second fixing plate 15 is fixed in the corresponding position of the insert plate 14 by the insertion of the threaded hole 23 and the internal hex bolt 24. The clamping block 19 is slidably connected to the left and right sides of the first fixing plate 13 and the two sets of second fixing plates 15 by the sliding groove 21, and maintains stable sliding under the cooperation of the slide rail 27 and the sliding groove 28. When adjusting the clamping distance, the drive motor 16 drives the bidirectional screw 17 to rotate, causing the sliding block 19, which is threaded onto the bidirectional screw 17, to rotate. The sliding block 18 moves left and right, and its bottom slides along the fixed rod 20, thereby driving the clamping blocks 19 on the front and rear sides to slide along the fixed rod 20, so as to adjust the left and right distance of the clamping blocks 19. When clamping the watch strap, gas enters the airbag 32 in the placement slot 31 through the air inlet pipe 30 and the air inlet channel 29, causing the airbag 32 to expand to clamp the watch strap. Several anti-slip strips 33 on the outer surface of the airbag 32 ensure stable clamping. The air outlet 26 in the middle of the fixed plate 13 and the two sets of fixed plates 15 introduces gas through the air inlet pipe 22 and blows it onto the watch strap to achieve rapid cooling. The image recognition sensors 25 on the front and rear sides of the bottom of the fixed plate 13 are used to identify relevant position information.

[0030] The front side of the watchband injection molding machine 1 is equipped with a controller 4, which serves as the control core. It can receive relevant instructions and send control signals to regulate the operation of various components such as the robot arm's forward and backward movement module 5, left and right movement module 7, lifting module 9, rotating cylinder 35, side tilting cylinder 36, and clamping assembly, ensuring that each action is carried out in an orderly manner according to the set program.

[0031] A collection box 3 is provided at the bottom front of the mounting frame 2 to receive the watch strap after it has been transferred by the robotic arm gripping component. When the gripping component completes the transfer and releases the watch strap, the watch strap can fall into the collection box 3, thus realizing the centralized collection of watch straps during the production process.

[0032] Working principle: In the process of watch strap production, the mounting frame 2 provides support for the overall structure of this robotic arm. The front-to-back moving module 5 can drive the sliding plate 6 to slide back and forth. Since the bottom left and right sides of the left and right moving module 7 are fixed on the sliding plate 6 and the sliding plate 11 respectively, and the sliding plate 11 is slidably connected to the slide rail 10, the front-to-back moving module 5 can drive the left-to-right moving module 7 to move back and forth as a whole when it is working. The left-to-right moving module 7 can drive the sliding plate 8 to slide left and right, thereby driving the lifting module 9 to move left and right. The lifting module 9 can drive the rotating cylinder 35, the side-tilting cylinder 36, the U-shaped connecting frame 12 and the clamping assembly to perform lifting and lowering movements through the connecting plate 34 at its bottom output end. The rotating cylinder 35 can drive the side-tilting cylinder 36, the U-shaped connecting frame 12 and the clamping assembly to rotate, and the side-tilting cylinder 36 can drive the U-shaped connecting frame 12 and the clamping assembly to perform side-tilting. When the clamping assembly is in operation, the first fixing plate 13 is fixed by the U-shaped connecting frame 12, and the second fixing plate 15 is slidably sleeved on the front and rear sides of the first fixing plate 13 by the insert plate 14. The second fixing plate 15 is fixed in the corresponding position of the insert plate 14 by the insertion of the threaded hole 23 and the internal hex bolt 24. The clamping block 19 is slidably connected to the left and right sides of the first fixing plate 13 and the two sets of second fixing plates 15 by the sliding groove 21, and maintains stable sliding under the cooperation of the slide rail 27 and the sliding groove 28. When adjusting the clamping distance, the drive motor 16 drives the bidirectional screw 17 to rotate, causing the sliding block 18 threaded on the bidirectional screw 17 to move left and right. The bottom of block 18 slides along the fixed rod 20, thereby driving the clamping blocks 19 on the front and rear sides to slide along the fixed rod 20, realizing the adjustment of the left and right distance of the clamping blocks 19; when clamping the watch strap, gas enters the airbag 32 in the placement slot 31 through the air inlet pipe 30 and the air inlet channel 29, causing the airbag 32 to expand to clamp the watch strap, and several anti-slip strips 33 on the outer surface of the airbag 32 ensure stable clamping; the air outlet 26 in the middle of the fixed plate 13 and the two sets of fixed plates 15 introduces gas through the air inlet pipe 22, blowing it onto the watch strap to achieve rapid cooling; the image recognition sensor 25 on the front and rear sides of the bottom of the fixed plate 13 is used to identify relevant position information, and finally realize the clamping and transfer operation of the watch strap.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A robotic arm for watch strap production, comprising a watch strap injection molding machine (1), characterized in that: A mounting frame (2) is provided above the watch strap injection molding machine (1). A front-to-back moving module (5) is installed on the top left side of the mounting frame (2). A sliding plate (6) is slidably installed on the top of the front-to-back moving module (5). A slide rail (10) is fixedly connected to the top right side of the mounting frame (2). A sliding plate (11) is slidably connected to the slide rail (10). A left-to-right moving module (7) is provided between the left and right sides of the mounting frame (2). The bottom left and right sides of the left-to-right moving module (7) are fixedly installed on the sliding plate (6) and the sliding plate (11) respectively. The top of the left and right moving module (7) is slidably mounted with a sliding plate two (8). The top front side of the sliding plate two (8) is mounted with a lifting module (9). The bottom output end of the lifting module (9) is fixedly connected with a connecting plate (34). The bottom of the connecting plate (34) is mounted with a rotating cylinder (35). The bottom output end of the rotating cylinder (35) is mounted with a side-position flipping cylinder (36). The bottom output end of the side-position flipping cylinder (36) is fixedly connected with a U-shaped connecting frame (12). The bottom of the U-shaped connecting frame (12) is mounted with a clamping component for clamping the watch strap.

2. The robotic arm for watch strap production according to claim 1, characterized in that: The clamping assembly includes a first fixing plate (13), which is fixedly connected to the bottom side of the U-shaped connecting frame (12). The front and rear sides of the first fixing plate (13) are fixedly connected to insert plates (14). The two sets of insert plates (14) are slidably fitted with second fixing plates (15). The first fixing plate (13) and the two sets of second fixing plates (15) are provided with sliding grooves (21) on the left and right sides. The six sets of sliding grooves (21) are slidably connected with clamping blocks (19). The clamping blocks (19) are provided with airbag clamping mechanisms. The U-shaped connecting frame (12) is installed with clamping distance adjustment mechanisms. A fixing mechanism is also provided between the insert plates (14) and the second fixing plates (15).

3. The robotic arm for watch strap production according to claim 2, characterized in that: The airbag clamping mechanism includes a placement groove (31), which is opened on the clamping block (19). An airbag (32) is provided inside the placement groove (31). An air intake channel (29) is also opened inside the clamping block (19). The bottom end of the air intake channel (29) is fixedly connected to the airbag (32). An air intake pipe (30) is fixedly connected to the top end of the air intake channel (29). Several anti-slip strips (33) are fixedly connected to the outer surface of the airbag (32).

4. The robotic arm for watch strap production according to claim 2, characterized in that: The clamping spacing adjustment mechanism includes a drive motor (16), which is fixedly installed on the left side of the U-shaped connecting frame (12). A bidirectional screw (17) is rotatably passed between the left and right sides of the U-shaped connecting frame (12). The output shaft end of the drive motor (16) is fixedly connected to the left end of the bidirectional screw (17). Sliding blocks (18) are threaded on both the left and right sides of the bidirectional screw (17). Fixed rods (20) are fixedly connected to the front and rear sides of the clamping block (19) located in the middle. The clamping blocks (19) located on the front and rear sides are slidably sleeved on the fixed rods (20), and the bottom of the sliding block (18) is slidably sleeved on the fixed rods (20).

5. A robotic arm for watch strap production according to claim 2, characterized in that: The fixing mechanism includes several hexagon socket bolts (24), and several threaded holes (23) are provided through the fixing plate (15). The hexagon socket bolts (24) are threaded into the threaded holes (23), and the bottom end of the hexagon socket bolts (24) abuts against the outer surface of the insert plate (14).

6. The robotic arm for watch strap production according to claim 2, characterized in that: The middle of the first fixed plate (13) and the two sets of second fixed plates (15) are provided with air outlets (26), and the input end of the air outlets (26) is fixedly connected to the air inlet pipe (22).

7. A robotic arm for watch strap production according to claim 2, characterized in that: The inner wall of the sliding groove (21) is fixedly connected to the sliding rail (27) on both the front and rear sides. The clamping block (19) is provided with the sliding groove (28) on both the front and rear sides. The sliding rail (27) is slidably connected to the sliding groove (28).

8. A robotic arm for watch strap production according to claim 2, characterized in that: Image recognition sensors (25) are installed on the front and rear sides of the bottom of the fixed plate (13).

9. A robotic arm for watch strap production according to claim 1, characterized in that: A controller (4) is installed on the front side of the watchband injection molding machine (1).

10. A robotic arm for watch strap production according to claim 1, characterized in that: A collection box (3) is provided at the bottom front side of the mounting bracket (2).

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