A polymer material recycling device

Abstract

This invention relates to the field of material recycling technology, specifically to a polymer material recycling device, comprising a screening and recycling box with a crushing chamber on its top surface; a screening assembly disposed inside the screening and recycling box for screening the polymer material crushed inside the crushing chamber; and a vibration assembly including a drive module and a follow-up module. The drive module is disposed on one side of the screening and recycling box, and the follow-up module is disposed inside the screening assembly for vibration sorting following the screening assembly. The drive module drives the follow-up module. Compared to existing technologies, this application, by incorporating a follow-up module, ensures that polymer materials of different particle sizes pass smoothly through the corresponding sieve openings, improving grading accuracy and making the screening process more efficient and stable.

Description

Technical Field

[0001] This invention relates to the field of material recycling technology, and in particular to a polymer material recycling device. Background Technology

[0002] With the widespread application of polymer materials in industrial production and daily life, the issue of waste disposal has become increasingly prominent, posing a significant challenge to environmental protection and resource recycling. Polymer materials, such as plastics, rubber, and composite materials, due to their high stability and long degradation cycles, can cause severe environmental pollution and waste substantial amounts of renewable resources if not properly handled. To improve resource utilization and reduce environmental burden, polymer material recycling equipment has emerged. This type of equipment is mainly used to recycle and process various waste plastics, rubber, and other polymer materials. Through crushing, screening, washing, and sorting processes, waste materials are reprocessed and reused, and are widely used in industries such as plastic recycling, rubber regeneration, and chemical waste treatment. With technological advancements, modern polymer material recycling equipment is continuously being optimized and upgraded, achieving breakthroughs in automation, intelligence, and refined sorting, providing strong support for sustainable development.

[0003] In the prior art, Chinese patent document CN220113782U, a polymer material recycling device, proposes a device that uses a gearbox to drive two external cams on the upper side to rotate, thereby moving a swinging connecting rod. At this time, the swinging connecting rod is restricted by a fixed sleeve, and the swinging connecting rod reciprocates inside the fixed sleeve, causing the parts restricted in the fixed extrusion plate to be crushed. Then, the parts are fed into the collection bucket through the feeding rack for recycling. The overall structure is simple and convenient. However, like the traditional method, the gap between the screen plates in the traditional device is fixed and cannot be dynamically adjusted. This causes the material (especially viscous polymers or micro powders) to easily clog the screen holes, requiring frequent shutdowns for cleaning. In addition, the screen plate vibrates in a single direction (such as only vertical or horizontal vibration), resulting in poor material dispersion, easy accumulation or local overload, and reduced screening rate. Therefore, this application discloses a polymer material recycling device. Summary of the Invention

[0004] The purpose of this invention is to provide a polymer material recycling device to solve the problems of fixed sieve plate gaps in traditional devices, which cannot be dynamically adjusted, leading to easy material clogging of sieve holes and unidirectional sieve plate vibration.

[0005] To achieve the above objectives, the present invention provides a polymer material recycling device, including a screening and recycling box, a crushing box on the top surface of the screening and recycling box, a crushing inlet above the crushing box, two rotating rods rotatably mounted inside the crushing box, one side of the rotating rod penetrating the crushing box, and a pulley sleeved on the rotating rod penetrating the crushing box and connected to an external drive source, and the outer surfaces of the two rotating rods located inside the crushing box are each sleeved with intermeshing crushing rollers;

[0006] The sieving assembly is disposed inside the sieving and recycling box and is used to screen the polymer materials crushed inside the crushing box.

[0007] The vibration assembly includes a drive module and a follow-vibration module. The drive module is located on one side of the screening and recycling box, and the follow-vibration module is located inside the screening assembly. The follow-vibration module is used to follow the screening assembly in vibration sorting, and the drive module is used to drive the follow-vibration module.

[0008] Preferably, the screening assembly includes three sets of mounting slots opened from top to bottom on both sides of the interior of the screening and recycling box. Each set of mounting slots is provided with a screen plate body. A screening inlet is opened on the top surface of one side of the screening and recycling box and is connected to the bottom surface of the crushing box. A first outlet and several second outlets are provided on one side of the screening and recycling box. The first outlet is connected to one side of the screen plate body at the top of the interior of the screening and recycling box. The several second outlets are respectively connected to one side of several screen plate bodies at the bottom of the interior of the screening and recycling box.

[0009] Preferably, each of the three sieve plate bodies has a plurality of sieve openings, and the diameter of the sieve openings on the three sieve plate bodies gradually decreases from top to bottom.

[0010] Preferably, all three screen plate bodies are configured with a double-layer structure. Each screen plate body includes an upper screen plate and a lower screen plate. Mounting plates are provided on both sides of the lower screen plate. Each set of mounting slots consists of two slots. The two mounting plates are respectively embedded in the two mounting slots. The top surface of each mounting plate is provided with several return springs that are connected to the top surface of the mounting slot.

[0011] Preferably, the vibration-following module includes a plurality of reverse actuators fixedly installed between the upper screen plate and the lower screen plate. Each reverse actuator includes a connecting sleeve fixedly installed on one side of the lower screen plate. A movable sleeve is slidably fitted on one side of the connecting sleeve. A positioning cylinder is provided in the middle of the movable sleeve. A reverse drive rod is movably installed inside the positioning cylinder. A reverse connecting plate is provided at one end of the reverse drive rod. The reverse connecting plate is fixedly connected to one side of the upper screen plate. A thrust spring is provided at the other end of the reverse drive rod. The other end of the thrust spring is fixedly connected to one side of the reverse drive rod.

[0012] Preferably, a through groove is provided on one side of the positioning cylinder, and a drive groove is provided on one side of the reverse drive rod. The length of the through groove is set to be twice that of the drive groove. A moving rod is slidably installed inside the drive groove. One side of the moving rod is inclined. A first trigger block is provided on both sides of the moving rod. Two second trigger blocks that are adapted to the first trigger blocks are provided on the inner side of the connecting sleeve. The contact surfaces of the first trigger block and the second trigger block are both set as inclined surfaces.

[0013] Preferably, the inclined surfaces of the two moving rods are set in opposite directions, and the inclined surfaces of the two second trigger blocks are also set in opposite directions.

[0014] Preferably, the drive module includes a drive box fixedly installed on one side of the screening and recycling box. Several sets of sliding grooves are also provided through the interior of the screening and recycling box on both sides. Slide plates are slidably installed in each of the sliding grooves. Extension plates are provided on both sides of each slide plate. A connecting plate connected to one end of each of the slide plates is provided on one side of the drive box. A lead screw is rotatably installed at the bottom of the drive box. A forward and reverse motor is fixedly installed on one side of the bottom of the drive box. The output end of the forward and reverse motor is fixedly connected to one end of the lead screw. The connecting plate is threadedly connected to the lead screw. Several first impact blocks are provided on the top surface of the extension plates. Several second impact blocks adapted to the first impact blocks are provided on the bottom of the mounting plate.

[0015] Preferably, both the first impact block and the second impact block are trapezoidal in shape, and the first impact block and the second impact block are arranged opposite to each other.

[0016] Preferably, each of the slide plates is provided with a cleaning curtain at its bottom, the bottom of the cleaning curtain being toothed, and the cleaning curtain being used to sweep away polymer materials that have not been screened downwards.

[0017] The beneficial effects of this invention are:

[0018] 1. This polymer material recycling device, equipped with a follow-up module, uses the impact of the first and second impact blocks to move the lower screen plate upwards. Simultaneously, it triggers the connecting sleeve to slide towards the movable sleeve, compressing the thrust spring and causing the reverse drive rod to move downwards. This, in turn, moves the upper screen plate downwards towards the lower screen plate, creating bidirectional synchronous vibration. This design allows for continuous adjustment of the screen plate gap during screening, keeping the screen holes clear, preventing material blockage, and improving screening accuracy and stability. Because the thrust spring provides cushioning, the screen plate does not experience severe impact when subjected to collisions, effectively reducing equipment wear and extending the screen plate's service life. It also avoids material accumulation due to excessive vibration. Precise control of the reverse drive rod ensures the screen plate remains stable during approach and release, guaranteeing uniform material distribution and improving screening quality. Furthermore, the coordinated action of the moving rod and the trigger block allows the screen plate to automatically adjust its amplitude and frequency according to the material flow state, ensuring that polymer materials of different particle sizes pass smoothly through the corresponding screen holes, improving grading accuracy, and making the screening process more efficient and stable.

[0019] 2. This polymer material recycling device, equipped with a drive module, uses a forward and reverse motor to drive a lead screw to rotate, causing a sliding plate to reciprocate within a chute. This causes the first impact block to collide with the second impact block, thereby achieving dynamic vibration of the screen plate, improving screening efficiency and stability. The reciprocating motion of the sliding plate not only ensures continuous vibration of the screen plate but also drives a cleaning curtain to sweep away unscreened materials, preventing screen blockage and improving screening accuracy. Furthermore, the impact action of the drive module, combined with the follow-up vibration module, allows the screen plate to move in both directions, enhancing material dispersion and screening rate during the screening process, ensuring efficient grading of materials of different particle sizes. The adjustability of the forward and reverse motors allows the vibration amplitude and frequency of the screen plate to be optimized according to material characteristics, reducing uneven screening or blockage problems, improving the adaptability and stability of the equipment, while also reducing mechanical impact and extending the service life of the equipment. Attached Figure Description

[0020] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the second-view three-dimensional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of the crushing chamber of the present invention;

[0023] Figure 4 This is a schematic diagram of the planar structure of the screening and recycling box of the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of the screening and recycling box of the present invention;

[0025] Figure 6This is a schematic diagram of the sieve plate body driving module structure of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0027] Figure 8 This is a schematic diagram of the sieve plate body structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the reverse driver structure of the present invention;

[0029] Figure 10 This is a schematic diagram of the internal structure of the reverse driver of the present invention;

[0030] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point B;

[0031] Figure 12 This is a schematic diagram of the planar structure of the reverse driver of the present invention.

[0032] The diagram is marked as follows:

[0033] 1. Screening and recycling box; 2. Crushing box; 3. Crushing feed inlet; 4. Rotating rod; 5. Crushing roller; 6. Drive box; 7. Screening feed inlet; 8. Mounting groove; 9. Screen plate body; 10. Screening port; 11. Mounting plate; 12. Return spring; 13. Slide groove; 14. Slide plate; 15. Cleaning curtain; 16. Lead screw; 17. Connecting plate; 18. Forward and reverse motor; 19. Extension plate; 20. First impact block; 21. Second impact block; 22. Upper screen plate; 23. Lower screen plate; 24. Reverse drive; 25. Connecting sleeve; 26. Movable sleeve; 27. Positioning cylinder; 28. Reverse drive rod; 29. ​​Thrust spring; 30. Through groove; 31. Moving rod; 32. First trigger block; 33. Second trigger block; 34. Reverse connecting plate; 35. First discharge port; 36. Second discharge port. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0035] like Figures 1 to 12As shown, the polymer material recycling device includes a screening and recycling box 1, a crushing box 2 on the top surface of the screening and recycling box 1, a crushing inlet 3 above the crushing box 2, two rotating rods 4 rotatably mounted inside the crushing box 2, one side of the rotating rod 4 penetrating the crushing box 2, and a pulley sleeved on the rotating rod 4 penetrating the crushing box 2 and connected to an external drive source, and the outer surfaces of the two rotating rods 4 inside the crushing box 2 are each sleeved with intermeshing crushing rollers 5; a screening assembly, which is set inside the screening and recycling box 1, is used to screen the polymer material crushed inside the crushing box 2; and a vibration assembly, which includes a drive module and a follow-vibration module, the drive module being set on one side of the screening and recycling box 1, and the follow-vibration module being set inside the screening assembly, the follow-vibration module being used to follow the screening assembly for vibration sorting, and the drive module being used to drive the follow-vibration module;

[0036] When the equipment is started, the polymer material is fed into the crushing box 2 through the crushing inlet 3. The external drive source drives the rotating rod 4 to rotate, causing the crushing roller 5 on it to rotate at high speed. The intermeshing crushing rollers 5 shear, tear and squeeze the material, crushing large pieces of material into small particles. The crushed polymer material falls into the screening and recycling box 1 by gravity and enters the screening assembly. At this time, the drive module in the vibration assembly is started, driving the follow-vibration module to vibrate, causing the screening assembly to generate high-frequency vibration. The crushed polymer material is screened under the action of vibration force, and particles of different sizes are separated on the screening screen. Particles that meet the specifications fall into the recycling area through the screen, while larger particles that do not meet the size requirements are intercepted. Throughout the process, the vibration assembly works continuously to prevent material accumulation or blockage, improve screening efficiency, and make the entire recycling process more efficient and stable, ultimately achieving the precise recycling and reuse of polymer materials.

[0037] like Figures 4 to 6 As shown, the screening assembly includes three sets of mounting slots 8 opened from top to bottom on both sides of the inside of the screening and recycling box 1. Each set of mounting slots 8 is configured with two slots, and each set of mounting slots 8 is provided with a screen plate body 9. A screening feed inlet 7 is opened on the top surface of one side of the screening and recycling box 1 and is connected to the bottom surface of the crushing box 2. A first discharge port 35 and several second discharge ports 36 are provided on one side of the screening and recycling box 1. The first discharge port 35 is connected to one side of the screen plate body 9 at the top inside the screening and recycling box 1. Several second discharge ports 36 are respectively connected to one side of several screen plate bodies 9 at the bottom inside the screening and recycling box 1. Several screening openings 10 are opened on the three screen plate bodies 9, and the diameter of the screening openings 10 on the three screen plate bodies 9 gradually decreases from top to bottom.

[0038] When the equipment is started, the crushing roller 5 in the crushing box 2 crushes the polymer material and then enters the screening and recovery box 1 through the screening inlet 7. The crushed material falls onto the uppermost screen plate body 9. Large particles cannot pass through the screen holes due to their size and slide along the inclined surface of the screen plate to the first discharge port 35, where they are collected and enter the crushing box 2 for secondary crushing. Smaller particles fall through the screening port 10 of the first screen plate to the subsequent screen plates. Particles of different diameters will be discharged through different second discharge ports 36. Throughout the process, the material is classified sequentially during screening to ensure that polymer materials of different particle sizes are classified according to size, improve screening accuracy and recovery efficiency, and at the same time avoid screen plate blockage, ensuring stable and efficient operation of the screening process.

[0039] like Figures 5 to 9 As shown, the drive module includes a drive box 6 fixedly installed on one side of the screening and recycling box 1. Several sets of sliding grooves 13 are also provided through both sides of the interior of the screening and recycling box 1. Slide plates 14 are slidably installed in each of the sliding grooves 13. Extension plates 19 are provided on both sides of each slide plate 14. A connecting plate 17 is provided on one side of the drive box 6, connected to one end of each slide plate 14. A lead screw 16 is rotatably installed at the bottom of the drive box 6. A forward and reverse motor 18 is fixedly installed on one side of the bottom of the drive box 6. The output end of the forward and reverse motor 18 is connected to one end of the lead screw 16. The connection is fixed, the connecting plate 17 is threaded to the lead screw 16, the top surface of the extension plate 19 is provided with a number of first impact blocks 20, the bottom of the mounting plate 11 is provided with a number of second impact blocks 21 that are adapted to the first impact blocks 20, the first impact blocks 20 and the second impact blocks 21 are both trapezoidal in shape and are arranged opposite to each other, the bottom of a number of sliding plates 14 is provided with a cleaning curtain 15, the bottom of the cleaning curtain 15 is toothed, and the cleaning curtain 15 is used to sweep the polymer materials that have not been screened downwards;

[0040] When the equipment is started, the forward and reverse motors 18 drive the lead screw 16 to rotate, causing the connecting plate 17 to move axially along the lead screw 16. This causes the sliding plate 14 to slide back and forth in the chute 13. At this time, the sliding plate 14 moves, and the cleaning curtain 15 moves with the sliding plate 14 to clean the surface of the screen plate, preventing material accumulation and reducing the risk of screen hole blockage. At the same time, the movement of the sliding plate 14 also drives the extension plate 19, causing the first impact block 20 and the second impact block 21 to make periodic impacts, providing continuous vibration to the screen plate, thereby enhancing the screening effect and improving the classification efficiency of polymer materials. The screened materials fall into the corresponding discharge ports according to particle size, achieving accurate classification and efficient recycling, and improving the stability and service life of the overall screening device.

[0041] like Figures 8 to 12As shown, all three screen plate bodies 9 are configured with a double-layer structure. Each screen plate body 9 includes an upper screen plate 22 and a lower screen plate 23. Mounting plates 11 are provided on both sides of the lower screen plate 23. Each set of mounting slots 8 consists of two slots, with the two mounting plates 11 respectively embedded within the two mounting slots 8. Several return springs 12 are provided on the top surface of the mounting plates 11 and connected to the inner top surface of the mounting slots 8. The vibration-following module includes several reverse actuators 24 fixedly installed between the upper screen plate 22 and the lower screen plate 23. Each reverse actuator 24 includes a connecting sleeve 25 fixedly installed on one side of the lower screen plate 23. A movable sleeve 26 is slidably fitted on one side of the connecting sleeve 25. A positioning cylinder 27 is provided in the middle of the movable sleeve 26. A reverse drive rod 28 is movably installed inside the positioning cylinder 27. A reverse connecting plate 34 is provided at one end of the reverse drive rod 28. 34 is fixedly connected to one side of the upper screen plate 22. The other end of the reverse drive rod 28 is provided with a thrust spring 29. The other end of the thrust spring 29 is fixedly connected to one side of the reverse drive rod 28. A through groove 30 is opened through one side of the positioning cylinder 27, and a drive groove is opened through one side of the reverse drive rod 28. The opening length of the through groove 30 is set to twice that of the drive groove. A moving rod 31 is slidably installed inside the drive groove. One side of the moving rod 31 is set in an inclined shape. A first trigger block 32 is provided on both sides of the moving rod 31. Two second trigger blocks 33 that are adapted to the first trigger blocks 32 are provided on the inner side of the connecting sleeve 25. The contact surfaces of the first trigger blocks 32 and the second trigger blocks 33 are both set as inclined surfaces. The inclined surfaces of the two moving rods 31 are set in opposite directions, and the inclined surfaces of the two second trigger blocks 33 are also set in opposite directions.

[0042] When the equipment is started, the crushed polymer material enters the screening assembly, and the vibration assembly starts working. The forward and reverse motors 18 drive the lead screw 16 to rotate, causing the slide plate 14 to reciprocate within the slide groove 13. At the same time, the first impact block 20 impacts the second impact block 21, causing the lower screen plate 23 to move upward. As the lower screen plate 23 moves upward, the fixedly installed connecting sleeve 25 moves towards the movable sleeve 26 and compresses the thrust spring 29, causing the reverse drive rod 28 in the positioning cylinder 27 to move downward. The downward movement of the reverse drive rod 28 drives the reverse connecting plate 34 downward, and simultaneously drives the upper screen plate 22 downward to approach the lower screen plate 23. During this process, the second trigger block 33 pushes the first trigger block 32 through its inclined surface, causing the moving rod 31 to slide in the inclined direction, further driving the reverse drive rod 28 to move. This ensures the screen plates move alternately in both directions, achieving vibration-following and self-cleaning. The vibration of the upper screen plate 22 and the lower screen plate 23 works in coordination, allowing the screen mesh to continuously adjust its gap, effectively preventing screen hole blockage, improving screening accuracy and stability, and ensuring that polymer materials of different particle sizes can pass smoothly through the corresponding screen holes, thus improving screening efficiency and equipment operational stability. The impact of the first impact block 20 and the second impact block 21 drives the screen plates to move in both directions, ensuring uniform material distribution during screening and preventing accumulation. Simultaneously, the vibration-following function reduces blockage, enhances the screen mesh's self-cleaning ability, and improves equipment stability. The use of a thrust spring 29 and a reverse drive rod 28 provides a buffering effect during vibration, reducing the direct impact force on the screen plates, lowering wear, and extending equipment lifespan.

[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0044] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A polymer material recycling device, characterized in that, include: The top surface of the screening and recycling box (1) is provided with a crushing box (2), and the crushing box (2) is provided with a crushing feed inlet (3) above it. Two rotating rods (4) are rotatably installed inside the crushing box (2). One side of the rotating rod (4) passes through the crushing box (2), and a pulley is sleeved on the rotating rod (4) that passes through the crushing box (2) and connected to an external drive source. The outer surfaces of the two rotating rods (4) inside the crushing box (2) are each sleeved with a meshing crushing roller (5). The sieving component is located inside the sieving and recycling box (1) and is used to screen the polymer materials crushed inside the crushing box (2). The vibration assembly includes a drive module and a follow-vibration module. The drive module is located on one side of the screening and recycling box (1), and the follow-vibration module is located inside the screening assembly. The follow-vibration module is used to follow the screening assembly for vibration sorting, and the drive module is used to drive the follow-vibration module. The sieving assembly includes three sets of mounting slots (8) opened from top to bottom on both sides of the inside of the sieving and recycling box (1). Each set of mounting slots (8) is provided with a screen plate body (9). The screen plate body (9) includes an upper screen plate (22) and a lower screen plate (23). Mounting plates (11) are provided on both sides of the lower screen plate (23). The vibration-following module includes several reverse actuators (24) fixedly installed between the upper screen plate (22) and the lower screen plate (23). Each reverse actuator (24) includes a connecting sleeve (25) fixedly installed on one side of the lower screen plate (23). A movable sleeve (26) is slidably sleeved on one side of the connecting sleeve (25). A positioning cylinder (27) is provided in the middle of the movable sleeve (26). A reverse drive rod (28) is movably installed inside the positioning cylinder (27). A reverse connecting plate (34) is provided at one end of the reverse drive rod (28). The reverse connecting plate (34) is fixedly connected to one side of the upper screen plate (22). A thrust spring (29) is provided at the other end of the reverse drive rod (28). The other end of the thrust spring (29) is fixedly connected to one side of the reverse drive rod (28). The drive module includes a drive box (6) fixedly installed on one side of the screening and recycling box (1). Several sets of sliding grooves (13) are also opened through the inside of the screening and recycling box (1). Slide plates (14) are slidably installed in the several sets of sliding grooves (13). Extension plates (19) are provided on both sides of the slide plates (14). A connecting plate (17) connected to one end of several slide plates (14) is provided on one side of the inside of the drive box (6). A lead screw (16) is rotatably installed at the bottom of the drive box (6). A forward and reverse motor (18) is fixedly installed on one side of the bottom of the drive box (6). The output end of the forward and reverse motor (18) is fixedly connected to one end of the lead screw (16). The connecting plate (17) is threadedly connected to the lead screw (16). Several first impact blocks (20) are provided on the top surface of the extension plate (19). Several second impact blocks (21) adapted to the first impact blocks (20) are provided on the bottom of the mounting plate (11).

2. The polymer material recycling device according to claim 1, characterized in that, The top surface of one side of the screening and recycling box (1) is provided with a screening inlet (7) which is connected to the bottom surface of the crushing box (2). The screening and recycling box (1) is provided with a first outlet (35) and several second outlets (36) on one side. The first outlet (35) is connected to one side of the screen plate body (9) at the top inside the screening and recycling box (1). Several second outlets (36) are respectively connected to one side of several screen plate bodies (9) at the bottom inside the screening and recycling box (1).

3. The polymer material recycling device according to claim 2, characterized in that, Each of the three sieve plate bodies (9) is provided with a number of sieve openings (10), and the diameter of the sieve openings (10) on the three sieve plate bodies (9) gradually decreases from top to bottom.

4. The polymer material recycling device according to claim 3, characterized in that, All three screen plate bodies (9) are configured as double-layer structures. Each set of mounting slots (8) consists of two, and two mounting plates (11) are respectively embedded in the interior of the two mounting slots (8). The top surface of the mounting plate (11) is provided with several reset springs (12) that are connected to the top surface of the interior of the mounting slot (8).

5. The polymer material recycling device according to claim 1, characterized in that, A through groove (30) is provided on one side of the positioning cylinder (27), and a drive groove is provided on one side of the reverse drive rod (28). The length of the through groove (30) is set to twice that of the drive groove. A moving rod (31) is slidably installed inside the drive groove. One side of the moving rod (31) is inclined. A first trigger block (32) is provided on both sides of the moving rod (31). Two second trigger blocks (33) that are adapted to the first trigger block (32) are provided on the inner side of the connecting sleeve (25). The contact surfaces of the first trigger block (32) and the second trigger block (33) are both set as inclined surfaces.

6. The polymer material recycling device according to claim 5, characterized in that, The inclined surfaces of the two moving rods (31) are set in opposite directions, and the inclined surfaces of the two second trigger blocks (33) are also set in opposite directions.

7. The polymer material recycling device according to claim 1, characterized in that, The first impact block (20) and the second impact block (21) are both trapezoidal in shape, and the first impact block (20) and the second impact block (21) are arranged opposite to each other.

8. The polymer material recycling device according to claim 7, characterized in that, Each of the aforementioned slide plates (14) is provided with a cleaning curtain (15) at its bottom. The bottom of the cleaning curtain (15) is toothed and is used to sweep up polymer materials that have not been screened downwards.

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