A waste separation and collection device for plastic watchband injection molding

Abstract

This utility model relates to the field of watch strap manufacturing technology, specifically a waste separation and collection device for injection molding of plastic watch straps. It includes a workbench with two sets of mounting covers fixedly connected to the top. Each mounting cover has several placement slots matching the shape of the watch strap. A cutting assembly for separating the watch strap from the waste is mounted on the workbench. A collection assembly for quickly collecting the watch strap is also mounted on the workbench. A drive assembly for operating the cutting and collection assemblies is also mounted on the workbench. The drive assembly drives the cutting blade in the cutting assembly to precisely separate the watch strap from the waste. After cutting, a moving and rotating mechanism drives a rotating plate to rotate, causing the watch strap to fall through the gap between the two rotating plates and enter the watch strap collection box through the discharge port. This achieves efficient collection of watch straps, reduces the labor intensity of operators, and improves overall work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of watch strap production technology, specifically to a waste separation and collection device for injection molding of plastic watch straps. Background Technology

[0002] In the manufacturing process of plastic watch straps, injection molding is a widely used and crucial process. Because injection molds require runners to ensure the molten plastic smoothly fills the cavity, after injection molding, waste material formed from residual plastic in the runners often remains attached to the watch strap body. If this waste material is not separated and removed promptly, it will directly affect subsequent processing of the watch strap and product quality.

[0003] Traditional waste separation methods mainly rely on manual cutting, where operators use scissors or knives to cut the waste attached to the watch strap piece by piece. This method is not only labor-intensive and inefficient, making it difficult to meet the needs of large-scale production, but also prone to damage to the watch strap itself due to improper force control or operational deviations during manual operation, leading to a higher product scrap rate and increased production costs.

[0004] To address the accuracy issues associated with manual cutting, some automated or semi-automated equipment has emerged that can achieve precise cutting. This equipment uses mechanical structures or laser cutting to separate waste material from the watch strap with relatively high precision, effectively reducing the risk of damage. However, even after the cutting process, existing precision cutting equipment still requires manual removal and collection of the separated watch straps one by one. This step not only perpetuates the tediousness of manual operation but also limits the improvement of overall production efficiency due to the need for frequent intervention in equipment operation.

[0005] In order to quickly and efficiently collect watch straps after separating waste materials and watch straps, reduce the labor intensity of operators, and improve overall work efficiency, we propose a waste separation and collection device for plastic watch strap injection molding. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a waste separation and collection device for plastic watch strap injection molding. After separating the waste and the watch strap, it can quickly and efficiently collect the watch strap, reducing the labor intensity of operators and improving overall work efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A waste separation and collection device for injection molding of plastic watch straps includes a workbench, two sets of mounting covers are fixedly connected to the top of the workbench, the mounting covers are provided with a number of placement slots that match the shape of the watch straps, a cutting component for separating the watch straps from the waste is installed on the workbench, a collection component for quickly collecting the watch straps is installed on the workbench, and a driving component for driving the cutting component and the collection component to operate is installed on the workbench. The collection assembly includes a watch strap collection box, which is slidably mounted on a workbench. Two sets of discharge ports communicating with mounting covers are provided on the fixed plate. The watch strap collection box is connected to the discharge ports. A slide is fixedly mounted between the two sets of mounting covers, and a first inclined surface is provided on the slide. A waste collection box matching the slide is provided on the rear side of the workbench. Two sets of partitions are fixedly connected to the inner wall of the mounting cover. Two sets of rotating plates are rotatably mounted between the two sets of partitions. The top of the rotating plate abuts against the top of the inner cavity of the mounting cover. A rotating mechanism for driving the rotating plate to rotate is mounted on the rotating plate.

[0008] Preferably, the rotating mechanism includes several sets of connecting bars, which are fixedly connected to the bottom of the rotating plate. Each end of the connecting bar is fixedly connected to a connecting block. The partition plate has two sets of guide grooves that match the connecting blocks. The guide grooves are inclined. The connecting blocks are movably connected to the guide grooves. Two sets of sliding plates are slidably connected to the side of the partition plate away from the rotating plate. The sliding plates have moving grooves that match the connecting blocks. The connecting blocks are movably connected to the moving grooves. The mounting cover is equipped with a sliding mechanism that drives the sliding plates to slide.

[0009] Preferably, the sliding mechanism includes several sets of moving blocks, which slide through the mounting cover. A limit block is fixedly connected to the top of the moving block, and two sets of connecting rods are rotatably connected to the top of the limit block. The end of the connecting rod away from the limit block is hinged to the sliding plate.

[0010] Preferably, the cutting assembly includes several sets of support rods, which are fixedly connected to the top of the workbench. A lifting plate is slidably sleeved on the support rods, and an installation plate is fixedly installed at the bottom of the lifting plate. Two sets of cutting blades are fixedly connected to the bottom of the installation plate, and the cutting blades correspond to the installation cover. A fixing mechanism for fixing the position of the watch strap is installed on the installation plate.

[0011] Preferably, the fixing mechanism includes two sets of connecting covers. The connecting covers are fixedly connected to the bottom of the mounting plate. A sliding cover is slidably sleeved on the outside of the connecting covers. A limiting plate is fixedly connected to the bottom of the sliding cover. The limiting plate matches the mounting cover. A buffer spring is fixedly connected to the top of the limiting plate. The top of the buffer spring is fixedly connected to the bottom of the mounting plate. The connecting cover is sleeved on the outside of the buffer spring.

[0012] Preferably, a number of connecting rods are fixedly connected to the top of the limiting plate, the connecting rods slide through the mounting plate, and a rubber gasket is provided at the bottom of the limiting plate.

[0013] Preferably, the drive assembly includes a top plate, which is fixedly connected to the top of the support rod. A cylinder is fixedly installed on the top of the top plate, and the output end of the cylinder is fixedly connected to the lifting plate. A moving mechanism for driving the moving block to move is installed on the mounting plate.

[0014] Preferably, the moving mechanism includes several sets of pressure plates, the pressure plates are fixedly connected to the bottom of the mounting plate, the pressure plates are matched with the moving blocks, the moving blocks are provided with a second inclined surface, and a return spring is fixedly connected to the side of the moving blocks near the partition, and the end of the return spring away from the pressure plate is fixedly connected to the partition.

[0015] Preferably, a pressure rod is provided between the two sets of pressure plates on the front side, and several sets of spring pieces are fixedly connected to the front side of the slide table.

[0016] Preferably, a guide plate is fixedly connected to the top of the workbench, the front side of the guide plate abuts against the rear side of the fixed plate, and the guide plate is configured as a triangular plate.

[0017] Beneficial effects This invention provides a waste separation and collection device for injection molding of plastic watch straps. Compared with the prior art, it has the following advantages: This waste separation and collection device for plastic watch strap injection molding uses a drive component to drive a cutting blade in the cutting component to precisely separate the watch strap from the waste, reducing product scrap rate, improving production efficiency, and meeting the needs of large-scale production. After cutting, a moving mechanism and a rotating mechanism drive a rotating plate to rotate, causing the watch strap to fall through the gap between the two rotating plates and enter the watch strap collection box through the discharge port. This achieves efficient collection of watch straps, avoiding the tedious process of manually removing and collecting them one by one, reducing frequent intervention in equipment operation, further reducing the labor intensity of operators, and significantly improving overall work efficiency. Attached Figure Description

[0018] 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 rear view of the main body structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the fixing mechanism of this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the moving mechanism of this utility model; Figure 5 This is a schematic diagram of the internal structure of the mounting cover of this utility model; Figure 6For the present utility model Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Workbench; 2. Fixed plate; 3. Mounting cover; 4. Support rod; 5. Lifting plate; 6. Top plate; 7. Cylinder; 8. Waste collection box; 9. Watch strap collection box; 10. Guide plate; 11. Pressure plate; 12. Mounting plate; 13. Connecting rod; 14. Connecting cover; 15. Buffer spring; 16. Sliding cover; 17. Rotating plate; 18. Connecting strip; 19. Slide table; 20. Cutting blade; 21. Limiting plate; 22. Pressure rod; 23. Moving block; 24. Spring; 25. Return spring; 26. Partition plate; 27. Discharge port; 28. Sliding plate; 29. ​​Connecting block; 30. Guide groove; 31. Connecting rod; 32. Moving groove; 33. Limiting block. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-6 This utility model provides a technical solution: a waste separation and collection device for plastic watch strap injection molding, including a workbench 1, two sets of mounting covers 3 are fixedly connected to the top of the workbench 1, the mounting covers 3 are provided with several sets of placement slots that match the shape of the watch strap, a cutting component for separating the watch strap from the waste is installed on the workbench 1, a collection component for quickly collecting the watch strap is installed on the workbench 1, and a driving component for driving the cutting component and the collection component to operate is installed on the workbench 1. The collection assembly includes a watch strap collection box 9, which is slidably mounted on the workbench 1. The fixed plate 2 has two sets of discharge ports 27 that are connected to the mounting cover 3. The watch strap collection box 9 is connected to the discharge ports 27. A slide table 19 is fixedly mounted between the two sets of mounting covers 3. A first inclined surface is provided on the slide table 19. A waste collection box 8 that matches the slide table 19 is provided on the rear side of the workbench 1. Two sets of partitions 26 are fixedly connected to the inner wall of the mounting cover 3. Two sets of rotating plates 17 are rotatably mounted between the two sets of partitions 26. The top of the rotating plate 17 abuts against the top of the inner cavity of the mounting cover 3. A rotating mechanism that drives the rotating plate 17 to rotate is installed on the rotating plate 17.

[0022] In use, the watch strap with the waste material attached is first placed in the placement slot on the mounting cover 3. At this time, the waste material is located between the two sets of mounting covers 3. Under the support of the rotating plate 17, the watch strap will not fall. After placement, the waste material is cut by the cutting component to separate the watch strap from the waste material. The cut waste material falls onto the slide table 19 and slides down the first inclined surface into the waste collection box 8 for collection. Then, the rotating mechanism drives the rotating plate 17 to rotate, so that the gap between the two sets of rotating plates 17 gradually increases. After it increases to a certain extent, the watch strap falls through the gap under the action of gravity, passes through the discharge port 27 and falls into the watch strap collection box 9 for collection. This achieves fast and efficient collection of the watch strap after separating the waste material and the watch strap, reduces the labor intensity of the operator and improves the overall work efficiency.

[0023] The rotating mechanism includes several sets of connecting bars 18, which are fixedly connected to the bottom of the rotating plate 17. Connecting blocks 29 are fixedly connected to both ends of the connecting bars 18. Two sets of guide grooves 30 matching the connecting blocks 29 are provided on the partition plate 26. The guide grooves 30 are inclined. The connecting blocks 29 are movably connected to the guide grooves 30. Two sets of sliding plates 28 are slidably connected to the side of the partition plate 26 away from the rotating plate 17. Moving grooves 32 matching the connecting blocks 29 are provided on the sliding plates 28. The connecting blocks 29 are movably connected to the moving grooves 32. A sliding mechanism that drives the sliding plates 28 to slide is installed on the mounting cover 3.

[0024] The sliding mechanism includes several sets of moving blocks 23, which slide through the mounting cover 3. A limit block 33 is fixedly connected to the top of the moving block 23, and two sets of connecting rods 31 are rotatably connected to the top of the limit block 33. The end of the connecting rod 31 away from the limit block 33 is hinged to the sliding plate 28.

[0025] Under the action of the drive component, the moving block 23 moves toward the partition 26, causing the limiting block 33 to move. Under the action of the connecting rod 31, the two adjacent sliding plates 28 move away from each other. Through the cooperation of the guide groove 30 and the moving groove 32, the connecting block 29 moves, causing the rotating plate 17 to rotate.

[0026] The cutting assembly includes several sets of support rods 4, which are fixedly connected to the top of the workbench 1. A lifting plate 5 is slidably sleeved on the outside of the support rods 4. An installation plate 12 is fixedly installed at the bottom of the lifting plate 5. Two sets of cutting blades 20 are fixedly connected to the bottom of the installation plate 12. The cutting blades 20 correspond to the installation cover 3. A fixing mechanism for fixing the position of the watch strap is installed on the installation plate 12.

[0027] Under the action of the drive component, the mounting plate 12 descends, which in turn drives the cutting blade 20 to descend. The cutting blade 20 cuts against the outer wall of the mounting cover 3, separating the watch strap from the waste. During this process, the position of the watch strap is fixed by the fixing mechanism to prevent the watch strap from lifting up during cutting and to ensure cutting accuracy.

[0028] The fixing mechanism includes two sets of connecting covers 14. The connecting covers 14 are fixedly connected to the bottom of the mounting plate 12. A sliding cover 16 is slidably sleeved on the outside of the connecting covers 14. A limiting plate 21 is fixedly connected to the bottom of the sliding cover 16. The limiting plate 21 matches the mounting cover 3. A buffer spring 15 is fixedly connected to the top of the limiting plate 21. The top of the buffer spring 15 is fixedly connected to the bottom of the mounting plate 12. The connecting covers 14 are sleeved on the outside of the buffer spring 15.

[0029] As the mounting plate 12 descends, it also drives the limiting plate 21 to descend, causing the limiting plate 21 to press against the top of the mounting cover 3. This, together with the rotating plate 17, fixes the position of the watch strap. Afterward, the mounting plate 12 continues to drive the cutting blade 20 to descend, and the connecting cover 14 retracts into the sliding cover 16. The fixing effect is ensured by the action of the buffer spring 15.

[0030] Several sets of connecting rods 13 are fixedly connected to the top of the limiting plate 21. The connecting rods 13 slide through the mounting plate 12 to make the lifting and lowering of the limiting plate 21 more stable. A rubber pad is provided at the bottom of the limiting plate 21 to prevent damage to the equipment.

[0031] The drive assembly includes a top plate 6, which is fixedly connected to the top of the support rod 4. A cylinder 7 is fixedly installed on the top of the top plate 6, and the output end of the cylinder 7 is fixedly connected to the lifting plate 5. A moving mechanism that drives the moving block 23 to move is installed on the mounting plate 12.

[0032] The moving mechanism includes several sets of pressure plates 11, which are fixedly connected to the bottom of the mounting plate 12. The pressure plates 11 are matched with the moving block 23. The moving block 23 is provided with a second inclined surface. A return spring 25 is fixedly connected to the side of the moving block 23 near the partition 26. The end of the return spring 25 away from the pressure plate 11 is fixedly connected to the partition 26.

[0033] The control cylinder 7 drives the lifting plate 5 to descend, which in turn drives the mounting plate 12 to descend. The descent of the mounting plate 12 drives the pressure plate 11 to descend, which squeezes the moving block 23. Under the action of the second inclined plane, the moving block 23 moves towards the partition plate 26.

[0034] A pressure rod 22 is provided between the two sets of pressure plates 11 on the front side, and several sets of spring pieces 24 are fixedly connected to the front side of the slide table 19.

[0035] The pressure plate 11 descends, causing the pressure rod 22 to descend, which in turn causes the spring 24 to vibrate, causing the slide table 19 to vibrate slightly, making it easier for the waste material on the slide table 19 to slide down.

[0036] A guide plate 10 is fixedly connected to the top of the workbench 1. The front side of the guide plate 10 abuts against the rear side of the fixed plate 2. The guide plate 10 is set as a triangular plate.

[0037] Working principle: In use, first place the watch strap with the waste material attached into the placement slot on the mounting cover 3. At this time, the waste material is located between the two sets of mounting covers 3, and the watch strap will not fall under the support of the rotating plate 17. Then, control the cylinder 7 in the drive assembly to drive the lifting plate 5 to descend, which in turn drives the mounting plate 12 to descend. The descent of the mounting plate 12 simultaneously drives the limiting plate 21 in the fixing mechanism to descend, so that the limiting plate 21 presses against the top of the mounting cover 3, and fixes the position of the watch strap in conjunction with the rotating plate 17. After that, the mounting plate 12 continues to descend, and the connecting cover 14 retracts into the sliding cover 16. Under the action of the buffer spring 15, the fixing effect is ensured. At the same time, the mounting plate 12 drives the cutting blade 20 in the cutting assembly to descend. The cutting blade 20 cuts against the outer wall of the mounting cover 3, separating the watch strap from the waste material. The cut waste material falls onto the slide table 19. The watch strap slides down the first inclined plane and is collected in the waste collection box 8. Then, the mounting plate 12 continues to descend, causing the pressure plate 11 in the moving mechanism to descend and squeeze the moving block 23. Under the action of the second inclined plane, the moving block 23 moves towards the partition plate 26, causing the limiting block 33 to move. Under the action of the connecting rod 31, the two adjacent sliding plates 28 move away from each other. Through the cooperation of the guide groove 30 and the moving groove 32, the connecting block 29 moves, which in turn drives the rotating plate 17 to rotate, so that the gap between the two sets of rotating plates 17 gradually increases. After the gap increases to a certain extent, the watch strap falls from the gap under the action of gravity, passes through the discharge port 27 and falls into the watch strap collection box 9 for collection. This achieves fast and efficient collection of the watch strap after separating the waste and the watch strap, reducing the labor intensity of the operators and improving the overall work efficiency. After the cutting is completed, the cylinder 7 drives the lifting plate 5 to rise, and the mounting plate 12 rises accordingly. The pressure plate 11 no longer presses the moving block 23. Under the action of the reset spring 25, the moving block 23 moves away from the partition 26, and drives the sliding plate 28 to reset through the connecting rod 31, thereby resetting the rotating plate 17, waiting for the next operation.

[0038] 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.

[0039] 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 waste separation and collection device for injection molding of plastic watch straps, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to two sets of mounting covers (3). The mounting covers (3) are provided with several sets of placement slots that match the shape of the watch strap. The workbench (1) is equipped with a cutting component that separates the watch strap from the waste. The workbench (1) is equipped with a collection component that can quickly collect the watch strap. The workbench (1) is equipped with a driving component that drives the cutting component and the collection component to operate. The collection assembly includes a watch strap collection box (9), which is slidably mounted on the workbench (1). The fixed plate (2) has two sets of discharge ports (27) connected to the mounting cover (3). The watch strap collection box (9) is connected to the discharge port (27). A slide (19) is fixedly mounted between the two sets of mounting covers (3). A first inclined surface is provided on the slide (19). A waste collection box (8) matching the slide (19) is provided on the rear side of the workbench (1). Two sets of partitions (26) are fixedly connected to the inner wall of the mounting cover (3). Two sets of rotating plates (17) are rotatably mounted between the two sets of partitions (26). The top of the rotating plate (17) abuts against the top of the inner cavity of the mounting cover (3). A rotating mechanism that drives the rotating plate (17) to rotate is installed on the rotating plate (17).

2. The waste separation and collection device for injection molding of plastic watch straps according to claim 1, characterized in that: The rotating mechanism includes several sets of connecting strips (18), which are fixedly connected to the bottom of the rotating plate (17). Both ends of the connecting strips (18) are fixedly connected to connecting blocks (29). The partition plate (26) has two sets of guide grooves (30) that match the connecting blocks (29). The guide grooves (30) are inclined. The connecting blocks (29) are movably connected to the guide grooves (30). Two sets of sliding plates (28) are slidably connected to the side of the partition plate (26) away from the rotating plate (17). The sliding plates (28) have moving grooves (32) that match the connecting blocks (29). The connecting blocks (29) are movably connected to the moving grooves (32). The mounting cover (3) is equipped with a sliding mechanism that drives the sliding plates (28) to slide.

3. The waste separation and collection device for injection molding of plastic watch straps according to claim 2, characterized in that: The sliding mechanism includes several sets of moving blocks (23), which slide through the mounting cover (3). A limit block (33) is fixedly connected to the top of the moving block (23), and two sets of connecting rods (31) are rotatably connected to the top of the limit block (33). The end of the connecting rod (31) away from the limit block (33) is hinged to the sliding plate (28).

4. The waste separation and collection device for injection molding of plastic watch straps according to claim 3, characterized in that: The cutting assembly includes several sets of support rods (4), which are fixedly connected to the top of the workbench (1). A lifting plate (5) is slidably sleeved on the outside of the support rods (4). An installation plate (12) is fixedly installed at the bottom of the lifting plate (5). Two sets of cutting blades (20) are fixedly connected to the bottom of the installation plate (12). The cutting blades (20) correspond to the installation cover (3). A fixing mechanism for fixing the position of the watch strap is installed on the installation plate (12).

5. The waste separation and collection device for injection molding of plastic watch straps according to claim 4, characterized in that: The fixing mechanism includes two sets of connecting covers (14). The connecting covers (14) are fixedly connected to the bottom of the mounting plate (12). A sliding cover (16) is slidably sleeved on the outside of the connecting covers (14). A limiting plate (21) is fixedly connected to the bottom of the sliding cover (16). The limiting plate (21) matches the mounting cover (3). A buffer spring (15) is fixedly connected to the top of the limiting plate (21). The top of the buffer spring (15) is fixedly connected to the bottom of the mounting plate (12). The connecting cover (14) is sleeved on the outside of the buffer spring (15).

6. The waste separation and collection device for injection molding of plastic watch straps according to claim 5, characterized in that: The top of the limiting plate (21) is fixedly connected with several sets of connecting rods (13), the connecting rods (13) slide through the mounting plate (12), and the bottom of the limiting plate (21) is provided with rubber pads.

7. The waste separation and collection device for injection molding of plastic watch straps according to claim 4, characterized in that: The drive assembly includes a top plate (6), which is fixedly connected to the top of the support rod (4). A cylinder (7) is fixedly installed on the top of the top plate (6). The output end of the cylinder (7) is fixedly connected to the lifting plate (5). A moving mechanism that drives the moving block (23) to move is installed on the mounting plate (12).

8. The waste separation and collection device for injection molding of plastic watch straps according to claim 7, characterized in that: The moving mechanism includes several sets of pressure plates (11), the pressure plates (11) are fixedly connected to the bottom of the mounting plate (12), the pressure plates (11) are matched with the moving block (23), the moving block (23) is provided with a second inclined surface, and a return spring (25) is fixedly connected to the side of the moving block (23) near the partition plate (26), and the end of the return spring (25) away from the pressure plate (11) is fixedly connected to the partition plate (26).

9. A waste separation and collection device for injection molding of plastic watch straps according to claim 8, characterized in that: A pressure rod (22) is provided between the two sets of pressure plates (11) on the front side, and several sets of spring pieces (24) are fixedly connected to the front side of the slide (19).

10. A waste separation and collection device for injection molding of plastic watch straps according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to a guide plate (10), the front side of the guide plate (10) abuts against the rear side of the fixed plate (2), and the guide plate (10) is set as a triangular plate.

Images