Slewing device for recycling defective material of injection molding piece

By designing automated flexible opening and closing components and triggering mechanisms, the problem of cumbersome manual operation in the rotary device for recycling defective injection molded parts was solved, realizing the automated recycling and conveying of defective injection molded parts and improving work efficiency.

CN223493650UActive Publication Date: 2025-10-31INPLAST PLASTIC & ELECTRONICS SUZHOU CO LTD +1
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Patent Information

Application Number
CN202422779627.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-10-31
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

Existing rotary devices for recycling defective injection molded parts require manual or complex mechanical equipment to open the recycling bins, resulting in cumbersome operation and increased workload.

Method used

A recycling bin comprising an elastic opening and closing component and a triggering mechanism was designed. When the weight of the defective product exceeds the elastic force of the elastic opening and closing component, the blockage is automatically released, realizing the automatic opening and closing of the recycling bin and ensuring that the defective product automatically falls to the conveying mechanism when the maximum capacity is reached.

Benefits of technology

It has enabled the automated recycling and conveying of defective injection molded parts, reducing manual intervention and improving work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the related technical field of injection molding piece defective product recycling, in particular to an injection molding piece defective product material recycling rotating device which comprises a working table and a conveying mechanism arranged on the working table and further comprises a supporting frame fixedly installed on the working table, and a recycling box is arranged on the supporting frame. Elastic opening and closing assemblies are symmetrically arranged in the recycling box; according to the device, when the weight of defective products in the recycling box exceeds the elastic force stored by the elastic opening and closing assembly, the elastic opening and closing assembly moves downwards relative to the recycling box and extrudes the trigger mechanisms, and when the recycling amount of the defective products in the recycling box reaches the maximum value, the elastic opening and closing assembly can move downwards relative to the recycling box and extrudes the trigger mechanisms. The trigger mechanism exerts instant acting force, under the action of the adjustable transmission part, the elastic opening and closing assembly is controlled to release the blocking state of the bottom of the recycling box, and therefore it is guaranteed that when the recycling amount of defective products in the recycling box reaches the maximum value, the blocking state of the bottom of the recycling box can be automatically released.
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Description

Technical Field

[0001] This utility model relates to the technical field of recycling defective injection molded parts, specifically a rotary device for reusing defective injection molded parts. Background Technology

[0002] Injection molded parts have a wide range of applications, from buttons to automotive parts and specialized products such as medical devices. In industrial production, injection molded parts hold a significant market share due to their advantages. After production, injection molded parts generally require testing. Only those that pass the test can be released to the market, while those that fail are returned to the hot-melt mechanism for reuse in production.

[0003] Most existing rotary devices for recycling defective injection molded parts use conveyor mechanisms to transport the defective parts. Considering that the inspection of defective parts takes time, and in order to save energy for driving the conveyor mechanism, a recycling bin is set at the top of the conveyor mechanism. Defective parts are put into the recycling bin and then put onto the conveyor mechanism for rotation. However, when the recycling bin is full of defective parts, the bottom of the recycling bin is usually opened manually. This method requires constant manual observation, which increases the workload of the operators. Alternatively, an automated device can be used, where the bottom of the recycling bin is opened manually and mechanically after the defective parts are full, making the defective parts rotation work cumbersome. Utility Model Content

[0004] The purpose of this invention is to provide a rotary device for reusing defective injection molded parts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rotary device for recycling defective injection molded parts includes a worktable and a conveying mechanism disposed on the worktable, and a support frame fixedly installed on the worktable. A recycling bin is disposed on the support frame and the recycling bin is located at the upper end of the conveying mechanism.

[0007] The recycling bin is symmetrically provided with elastic opening and closing components that control the opening and closing of the recycling bin, and the elastic opening and closing components can slide relative to the inner wall of the recycling bin.

[0008] A symmetrically arranged triggering mechanism is installed on the outer wall of the recycling bin. When the amount of recycling in the recycling bin reaches its maximum value, the triggering mechanism controls the elastic opening and closing component to release the seal of the recycling bin through an adjustable transmission component.

[0009] The rotary device for recycling defective injection molded parts as described above: the conveying mechanism includes conveyor frames symmetrically arranged on the worktable, and a conveying unit is provided between the two conveyor frames.

[0010] The rotary device for recycling defective injection molded parts as described above: at least one set of through slots are symmetrically arranged on the recycling bin.

[0011] The rotary device for recycling defective injection molded parts as described above: the elastic opening and closing assembly includes a load-bearing plate that is slidably connected to the inner wall of the recycling bin. The load-bearing plate is arranged in an L-shaped structure. A rotating shaft is rotatably mounted on one end of the load-bearing plate. Both ends of the rotating shaft pass through the through groove and extend out of the through groove. A baffle is fixedly connected to the rotating shaft. Both sides of the baffle abut against the inner wall of the recycling bin. An elastic extrusion member is provided at the other end of the load-bearing plate.

[0012] The rotary device for recycling defective injection molded parts as described above: the elastic extrusion part includes an extrusion plate fixedly installed on the outer wall of the recycling bin, a guide rod slidably arranged on the extrusion plate, one end of the guide rod being fixedly connected to the load-bearing plate, and a first push block and a second push block being fixedly connected to the other end;

[0013] It also includes a first spring, which is sleeved on the guide rod, with one end of the first spring abutting against the extrusion plate and the other end abutting against the load-bearing plate.

[0014] The rotary device for recycling defective injection molded parts as described above: the triggering mechanism includes a connecting frame fixedly connected to the outer wall of the recycling bin, a deflection shaft symmetrically rotatably mounted on the connecting frame, the deflection shaft being rotatably connected to the connecting shaft rotatably mounted on the connecting frame, and a deflection block fixedly connected to the deflection shaft;

[0015] It also includes a second spring, one end of which is rotatably connected to the connecting frame and the other end of which is rotatably connected to the deflection block.

[0016] The rotary device for recycling defective injection molded parts as described above: one end of the deflection shaft has a cylindrical cavity, a groove is formed inside the cylindrical cavity, and both ends of the connecting shaft are respectively inserted into the cylindrical cavity and form sliders that rotate with the groove.

[0017] The rotary device for recycling defective injection molded parts as described above: the adjustable transmission component includes a round shaft, on which a first connecting rod and a second connecting rod are rotatably mounted respectively. The end of the first connecting rod away from the round shaft is rotatably connected to a transmission shaft rotatably mounted on the outer wall of the recycling bin. The end of the second connecting rod away from the round shaft is rotatably connected to the rotating shaft. The round shaft is rotatably connected to the transmission shaft and the rotating shaft respectively through a second belt and a third belt.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] When the weight of defective injection molded parts in the recycling bin exceeds the elastic force stored in the flexible opening and closing component, the component moves downward relative to the recycling bin, increasing the storage space inside. As the component moves downward, it exerts pressure on the triggering mechanism. When the amount of defective parts recycled in the bin reaches its maximum value, the triggering mechanism exerts an instantaneous force. Under the action of the adjustable transmission component, it controls the flexible opening and closing component to release the seal on the bottom of the recycling bin, ensuring that the bottom of the recycling bin automatically releases the seal when the amount of defective parts recycled reaches its maximum value. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a rotary device for reusing defective injection molded parts.

[0021] Figure 2 This is a schematic diagram of the recycling bin in a rotary device for reusing defective injection molded parts.

[0022] Figure 3 This is a schematic diagram of the recycling bin and the flexible opening and closing component in a rotary device for recycling defective injection molded parts.

[0023] Figure 4 This is a schematic diagram of the trigger mechanism and adjustable transmission component in a rotary device for recycling defective injection molded parts.

[0024] Figure 5 This is a schematic diagram of the deflection shaft and connecting shaft in a rotary device for the reuse of defective injection molded parts.

[0025] Figure 6 This is a schematic diagram of the adjustable transmission component and baffle in a rotary device for recycling defective injection molded parts.

[0026] In the diagram: 1. Workbench; 2. Conveyor frame; 3. Conveyor unit; 4. Support frame; 5. Recycling bin; 501. Through groove; 6. Load-bearing plate; 7. Baffle; 8. Rotating shaft; 9. Guide rod; 901. First pushing block; 902. Second pushing block; 10. First spring; 11. Extrusion plate; 12. Connecting frame; 13. Deflection block; 14. Deflection shaft; 1401. Slide groove; 15. Connecting shaft; 1501. Slider; 16. Second spring; 17. First belt; 18. Round shaft; 19. Second belt; 20. Third belt; 21. First connecting rod; 22. Second connecting rod; 23. Drive shaft; 24. Limiting plate. Detailed Implementation

[0027] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0028] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0029] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0030] Please see Figures 1-6 In this embodiment of the utility model, a rotary device for recycling defective injection molded parts includes a workbench 1, a support frame 4, a recycling bin 5, a conveying mechanism, an elastic opening and closing assembly, a triggering mechanism, and an adjustable transmission component.

[0031] For details, please refer to the following: Figure 1 , Figure 3 and Figure 4 ,include;

[0032] The workbench 1 and the conveying mechanism disposed on the workbench 1 also include a support frame 4 fixedly installed on the workbench 1, a recycling box 5 disposed on the support frame 4, and the recycling box 5 being located at the upper end of the conveying mechanism;

[0033] The recycling bin 5 is symmetrically provided with elastic opening and closing components for controlling the opening and closing of the recycling bin 5, and the elastic opening and closing components can slide relative to the inner wall of the recycling bin 5.

[0034] A symmetrically arranged triggering mechanism is installed on the outer wall of the recycling bin 5. When the amount of recycling in the recycling bin 5 reaches its maximum value, the triggering mechanism controls the elastic opening and closing component to release the seal of the recycling bin 5 through an adjustable transmission component.

[0035] In detail, in this embodiment, the rotary device for recycling defective injection molded parts described in this utility model is used. When the injection molded parts are found to be defective, they are placed into the recycling bin 5. When the weight of the defective injection molded parts in the recycling bin 5 exceeds the elastic force stored in the elastic opening and closing component, the elastic opening and closing component moves downward relative to the recycling bin 5, increasing the storage space inside the recycling bin 5. When the elastic opening and closing component moves downward, it squeezes the triggering mechanism. When the amount of defective parts recycled in the recycling bin 5 reaches its maximum value, the triggering mechanism exerts an instantaneous force. Under the action of the adjustable transmission component, it controls the elastic opening and closing component to release the seal on the bottom of the recycling bin 5, ensuring that when the amount of defective parts recycled in the recycling bin 5 reaches its maximum value, the bottom of the recycling bin 5 can automatically open, allowing the defective parts in the recycling bin 5 to fall onto the conveying mechanism and be rotated and transported to the hot melt mechanism for further processing.

[0036] The conveying mechanism includes conveying frames 2 symmetrically arranged on the workbench 1, and a conveying unit 3 is arranged between the two conveying frames 2.

[0037] Preferably, at least one set of through slots 501 are symmetrically arranged on the recycling bin 5.

[0038] For a further solution to this utility model, please refer to [link / reference]. Figure 3 The elastic opening and closing assembly includes a load-bearing plate 6 that is slidably connected to the inner wall of the recycling bin 5. The load-bearing plate 6 is arranged in an L-shaped structure. A rotating shaft 8 is rotatably mounted on one end of the load-bearing plate 6. Both ends of the rotating shaft 8 pass through the through groove 501 and extend out of the through groove 501. A baffle 7 is fixedly connected to the rotating shaft 8. Both sides of the baffle 7 abut against the inner wall of the recycling bin 5. An elastic pressing member is provided at the other end of the load-bearing plate 6.

[0039] The elastic extrusion member includes an extrusion plate 11 fixedly installed on the outer wall of the recycling bin 5. A guide rod 9 is slidably arranged on the extrusion plate 11. One end of the guide rod 9 is fixedly connected to the load-bearing plate 6, and a first push block 901 and a second push block 902 are fixedly connected to the other end.

[0040] It also includes a first spring 10, which is sleeved on the guide rod 9. One end of the first spring 10 abuts against the extrusion plate 11, and the other end abuts against the load-bearing plate 6.

[0041] In the initial state, the first spring 10 is in a compressed state. Under the restriction of the through groove 501, the squeezing force generated by the first spring 10 on the load-bearing plate 6 cannot push the load-bearing plate 6 upward relative to the recycling box 5. On the contrary, when the defective products are put into the recycling box 5, under the action of the first spring 10, the load-bearing plate 6 cannot move downward relative to the recycling box 5. Only when the pressure of the defective products in the recycling box 5 on the load-bearing plate 6 is greater than the elastic force stored in the first spring 10 will the load-bearing plate 6 move downward relative to the inner wall of the recycling box 5. At the same time, when the load-bearing plate 6 moves downward, it drives the baffle 7 and the guide rod 9 to move downward synchronously, so that the storage space in the recycling box 5 changes and can store more recycled defective products.

[0042] In detail, when the aforementioned load-bearing plate 6 moves downward, it compresses the rotating shaft 8, causing the rotating shaft 8 to slide relative to each other within the through groove 501. Simultaneously, as the rotating shaft 8 moves, it drives the baffle 7 to move downward in sync. The ends of the two baffles 7 furthest from the rotating shaft 8 abut against each other to seal the recycling box 5. When the load-bearing plate 6 moves downward, it compresses the first spring 10, causing it to be further compressed. When the rotating shaft 8 moves to the bottom of the through groove 501, the compression of the first spring 10 is at its maximum value, and the amount of defective products recycled in the recycling box 5 reaches its maximum value. The instantaneous force generated by the trigger mechanism, under the action of the adjustable transmission component, controls the rotating shaft 8 to rotate. When the rotating shaft 8 rotates, it drives the baffle 7 to rotate synchronously, causing the recycling box 5 to be unsealed. The defective products in the recycling box 5 fall onto the conveying mechanism under the action of gravity and are then transported back to the hot melt mechanism for further processing.

[0043] For a further solution to this utility model, please refer to [link / reference]. Figure 4 and Figure 5 The triggering mechanism includes a connecting frame 12 fixedly connected to the outer wall of the recycling bin 5. A deflection shaft 14 is symmetrically rotatably mounted on the connecting frame 12. The deflection shaft 14 is rotatably connected to a connecting shaft 15 rotatably mounted on the connecting frame 12. A deflection block 13 is fixedly connected to the deflection shaft 14.

[0044] It also includes a second spring 16, one end of which is rotatably connected to the connecting frame 12, and the other end is rotatably connected to the deflection block 13.

[0045] One end of the deflection shaft 14 has a cylindrical cavity, and a groove 1401 is formed inside the cylindrical cavity. Both ends of the connecting shaft 15 are respectively inserted into the cylindrical cavity and form sliders 1501 that rotate with the groove 1401.

[0046] Preferably, the deflection block 13 is provided with limiting plates 24 on both sides, which are fixedly connected to the connecting frame 12.

[0047] In the initial state, the second spring 16 is in a stretched state, which generates a force on the deflection block 13 to rotate toward the connecting frame 12. At this time, the limiting plate 24 and the deflection block 13 are in abutting state. Under the action of the limiting plate 24, the deflection block 13 can be stopped from moving without the action of external force.

[0048] Specifically, when the guide rod 9 moves, it drives the first push block 901 and the second push block 902 to move synchronously. When the first push block 901 moves, it squeezes the deflection block 13, causing the deflection block 13 to drive the deflection shaft 14 to rotate relative to the connecting frame 12. When the deflection block 13 rotates to be perpendicular to the connecting frame 12, the tension of the second spring 16 is at its maximum value, and the deflection block 13 and the connecting frame 12 are in a balanced state. At this time, the amount of recycling in the recycling box 5 is about to reach its maximum value. When the defective product is put back into the recycling box 5, the rotating shaft 8 moves completely to the bottom of the through groove 501. Under the action of the first push block 901, the deflection block 13 drives the deflection shaft 14 to continue to rotate relative to the connecting frame 12. Under the elasticity stored in the second spring 16, the deflection block 13 drives the deflection shaft 14 to rotate instantaneously until the deflection block 13 abuts against the limit plate 24. When the deflection shaft 14 rotates instantaneously, the adjustable transmission component is used to achieve the requirement of rotating shaft 8.

[0049] It should be noted that when the deflection shaft 14 starts to rotate, there is a gap between the end of the slider 1501 and the end of the groove 1401. At this time, the connecting shaft 15 does not rotate when the deflection shaft 14 rotates. When the deflection block 13 rotates to be perpendicular to the connecting frame 12, the end of the groove 1401 abuts against the slider 1501, so that when the deflection shaft 14 continues to rotate, it can drive the connecting shaft 15 to rotate synchronously.

[0050] For a further solution to this utility model, please refer to [link / reference]. Figure 4 and Figure 6 The adjustable transmission component includes a round shaft 18, on which a first connecting rod 21 and a second connecting rod 22 are rotatably mounted respectively. The end of the first connecting rod 21 away from the round shaft 18 is rotatably connected to a transmission shaft 23 rotatably mounted on the outer wall of the recycling bin 5. The end of the second connecting rod 22 away from the round shaft 18 is rotatably connected to a rotating shaft 8. The round shaft 18 is rotatably connected to the transmission shaft 23 and the rotating shaft 8 respectively through a second belt 19 and a third belt 20.

[0051] When the connecting shaft 15 rotates, it drives the transmission shaft 23 to rotate synchronously under the transmission of the first belt 17. When the transmission shaft 23 rotates, it drives the round shaft 18 to rotate under the transmission of the second belt 19. When the round shaft 18 rotates, it drives the rotating shaft 8 to rotate under the action of the third belt 20, so that the baffle 7 deflects relative to the inner wall of the recycling box 5, so as to ensure that when the amount of defective products recycled in the recycling box 5 reaches the maximum value, the bottom of the recycling box 5 can automatically release the sealing state.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rotary device for recycling defective injection molded parts, comprising a worktable (1) and a conveying mechanism disposed on the worktable (1), and further comprising a support frame (4) fixedly installed on the worktable (1), wherein a recycling bin (5) is disposed on the support frame (4), and the recycling bin (5) is located at the upper end of the conveying mechanism. Its characteristics are: The recycling bin (5) is symmetrically provided with elastic opening and closing components for controlling the opening and closing of the recycling bin (5), and the elastic opening and closing components can slide relative to the inner wall of the recycling bin (5); A symmetrically arranged triggering mechanism is installed on the outer wall of the recycling bin (5). When the amount of recycling in the recycling bin (5) reaches the maximum value, the triggering mechanism controls the elastic opening and closing component to release the blockage of the recycling bin (5) through an adjustable transmission component.

2. The rotary device for recycling defective injection molded parts according to claim 1, characterized in that, The conveying mechanism includes conveyor frames (2) symmetrically arranged on the workbench (1), and a conveying unit (3) is provided between the two conveyor frames (2).

3. The rotary device for recycling defective injection molded parts according to claim 1, characterized in that, At least one set of through slots (501) are symmetrically arranged on the recycling bin (5).

4. The rotary device for recycling defective injection molded parts according to claim 3, characterized in that, The elastic opening and closing assembly includes a load-bearing plate (6) that is slidably connected to the inner wall of the recycling bin (5). The load-bearing plate (6) is arranged in an L-shaped structure. A rotating shaft (8) is rotatably mounted on one end of the load-bearing plate (6). Both ends of the rotating shaft (8) pass through the through groove (501) and extend out of the through groove (501). A baffle (7) is fixedly connected to the rotating shaft (8). Both sides of the baffle (7) abut against the inner wall of the recycling bin (5). An elastic pressing member is provided at the other end of the load-bearing plate (6).

5. A rotary device for recycling defective injection molded parts according to claim 4, characterized in that, The elastic extrusion member includes an extrusion plate (11) fixedly installed on the outer wall of the recycling bin (5). A guide rod (9) is slidably arranged on the extrusion plate (11). One end of the guide rod (9) is fixedly connected to the load-bearing plate (6), and a first push block (901) and a second push block (902) are fixedly connected to the other end. It also includes a first spring (10), which is sleeved on the guide rod (9). One end of the first spring (10) abuts against the extrusion plate (11), and the other end abuts against the load-bearing plate (6).

6. A rotary device for recycling defective injection molded parts according to claim 1, characterized in that, The triggering mechanism includes a connecting frame (12) fixedly connected to the outer wall of the recycling bin (5), a deflection shaft (14) symmetrically rotatably mounted on the connecting frame (12), the deflection shaft (14) being rotatably connected to a connecting shaft (15) rotatably mounted on the connecting frame (12), and a deflection block (13) fixedly connected to the deflection shaft (14). It also includes a second spring (16), one end of which is rotatably connected to the connecting frame (12), and the other end is rotatably connected to the deflection block (13).

7. A rotary device for recycling defective injection molded parts according to claim 6, characterized in that, One end of the deflection shaft (14) has a cylindrical cavity, and a groove (1401) is formed inside the cylindrical cavity. Both ends of the connecting shaft (15) are inserted into the cylindrical cavity and form sliders (1501) that rotate with the groove (1401).

8. A rotary device for recycling defective injection molded parts according to claim 4, characterized in that, The adjustable transmission component includes a round shaft (18), on which a first connecting rod (21) and a second connecting rod (22) are rotatably mounted respectively. The end of the first connecting rod (21) away from the round shaft (18) is rotatably connected to a transmission shaft (23) rotatably mounted on the outer wall of the recycling bin (5). The end of the second connecting rod (22) away from the round shaft (18) is rotatably connected to the rotating shaft (8). The round shaft (18) is rotatably connected to the transmission shaft (23) and the rotating shaft (8) respectively through a second belt (19) and a third belt (20).