Waste plastic recovery device and circulation system

Abstract

The invention discloses a waste plastic recovery device and circulation system, and relates to the technical field of waste plastic recovery devices.The waste plastic recovery device comprises a recovery box, a crushing chamber and a compression chamber are arranged in the recovery box, the crushing chamber is located on one side of the top of the recovery box, and waste plastic is crushed into fragments in the crushing chamber; a compression box used for compressing fragments is arranged in the compression cavity and located on the side, away from the crushing cavity, of the recycling box. A material guide plate is arranged below the crushing cavity and fixedly connected to the inner wall of the recycling box, and a rotating plate is hinged to the end, close to the compression box, of the material guide plate. According to the waste plastic recovery device, by arranging the material guide plate, the rotating plate and other structures, crushing and compression are integrated, packaging is convenient, meanwhile, the compression box moves up and down so that fragments can be filled more tightly, the end, away from the material guide plate, of the rotating plate slides back and forth on the top of the compression box, the discharging position is adjusted, and accumulation is avoided; and the use efficiency of the waste plastic recovery device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of waste plastic recycling devices, and in particular to a waste plastic recycling device and a circulation system. Background Art

[0002] As the consumption of plastic products continues to increase, the amount of waste plastics is also increasing. my country's waste plastics mainly include plastic films, plastic threads and woven products, foam plastics, plastic packaging boxes and containers, daily plastic products, plastic bags and agricultural mulch films.

[0003] In the process of recycling waste plastics, crushing and compression are required to compress the plastic into blocks for subsequent storage and transportation. However, in the existing technology, crushing and compression require two devices to be performed separately, which is cumbersome to operate, affects the recycling efficiency, and increases the cost of equipment use.

[0004] Therefore, it is necessary to propose a waste plastic recycling device and a circulation system to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a waste plastic recycling device and a circulation system to solve the problem that in the process of waste plastic recycling, crushing and compression processing are required to compress the plastic into blocks for subsequent storage and transportation. In the prior art, crushing and compression require two devices to be performed separately, which is cumbersome to operate, affects the recycling efficiency, and increases the cost of equipment use.

[0006] To achieve the above object, the present invention provides the following technical solution: a waste plastic recycling device, comprising a recycling box, wherein a crushing chamber and a compression chamber are arranged inside the recycling box, wherein the crushing chamber is located on one side of the top of the recycling box, and the waste plastic is crushed into fragments inside the crushing chamber;

[0007] A compression box for compressing the crushed pieces is arranged inside the compression chamber, and the compression box is located on a side of the recovery box away from the crushing chamber;

[0008] A material guide plate is provided below the crushing chamber, the material guide plate is fixedly connected to the inner wall of the recovery box, a rotating plate is hingedly connected to one end of the material guide plate close to the compression box, and the rotating plate is slidably arranged on the top of the compression box at one end away from the material guide plate;

[0009] When the compression box slides up and down, the end of the rotating plate away from the guide plate slides back and forth on the top of the compression box, and the broken pieces evenly enter the interior of the compression box. During compression, the rotating plate closes the top of the compression box.

[0010] Preferably, first sliding grooves are provided on both inner walls of the compression box, and round blocks are slidably provided inside the first sliding grooves, and the round blocks are fixedly connected to the side walls of the rotating plate.

[0011] Preferably, a round rod is provided inside the compression chamber, and round holes for the round rod to slide through are provided on both sides of the rotating plate. A corrugated bar is fixedly connected to the round rod, and the corrugated bar is attached to the upper surface of the rotating plate. The corrugated bars are provided in plurality and are evenly distributed.

[0012] Preferably, arc grooves are provided on the inner walls on both sides of the recycling box, wherein an arc plate is fixedly connected to the upper half of one of the arc grooves, a protrusion is fixedly connected to the arc plate, and a round rod abuts against the protrusion, and a circular plate is provided inside the other arc groove, and the circular plate is fixedly connected to the round rod, and a first spring is sleeved on the outside of the round rod, one end of the first spring is fixedly connected to the outer wall of the rotating plate, and the other end of the first spring is fixedly connected to the circular plate.

[0013] Preferably, the number of the protrusions is multiple, and the distance between two adjacent protrusions gradually decreases from bottom to top.

[0014] Preferably, a pressure plate is slidingly provided inside the compression box, a first electric push rod is fixedly connected to the lower surface of the bottom of the compression box, and a through groove is provided at the bottom of the compression box for the telescopic end of the first electric push rod to pass through, the pressure plate is fixedly connected to the telescopic end of the first electric push rod, a second electric push rod is fixedly connected to the lower surface of the bottom of the recovery box, the compression box is fixedly connected to the telescopic end of the second electric push rod, second sliding grooves are provided on the inner walls on both sides of the recovery box, a slide plate is slidingly provided inside the second slide plate, and the slide plate is fixedly connected to the outer wall of the compression box.

[0015] Preferably, a vertical box is slidably provided inside the compression box, a square plate is slidably provided inside the vertical box, and the square plate abuts against the upper surface of the pressure plate, a second spring is provided inside the vertical box, one end of the second spring is fixedly connected to the lower surface of the top of the vertical box, and the other end of the second spring is fixedly connected to the top of the square plate, a third electric push rod is fixedly connected to the side wall of the compression box, and the third electric push rod is located below the material guide plate, the vertical box is fixedly connected to the telescopic end of the third electric push rod, a square groove is provided on the side of the compression box away from the third electric push rod, a sealing plate is provided in the square groove, and a material taking groove is provided on the side of the recovery box close to the square groove.

[0016] Preferably, the material guide plate is arranged obliquely, and one end close to the rotating plate is inclined downward.

[0017] Preferably, a crushing device for crushing waste plastics is provided at the crushing chamber, and a feeding hopper cooperating with the crushing chamber is provided at the top of the recycling box.

[0018] The present invention also discloses a waste plastic recycling system, which uses the waste plastic recycling device and also includes the following operating steps:

[0019] S1. Classification: Classify waste plastics according to their materials;

[0020] S2, cleaning: remove pollutants from waste plastics;

[0021] S3. Crushing: the waste plastic is crushed into pieces and laid flat, and the flattened pieces are directly compressed;

[0022] S4, Melting and Reshaping: After being melted at high temperature, it is reshaped into new products.

[0023] Technical effects and advantages of the present invention:

[0024] 1. The present invention integrates crushing and compression by arranging guide plates, rotating plates and other structures, and is convenient for packaging. At the same time, the compression box moves up and down to make the broken pieces filled more tightly, and the end of the rotating plate away from the guide plate slides back and forth on the top of the compression box to adjust the unloading position, avoid accumulation, and improve the use efficiency of the waste plastic recycling device;

[0025] 2. A rotating plate is provided to facilitate the feeding of crushed materials into the compression box. At the same time, the top of the compression box is slid back and forth to adjust the feeding position. During compression, the top of the compression box is closed to play a role of limiting.

[0026] 3. Since the guide plate is tilted and the end close to the rotating plate is tilted downward, the broken pieces slide along the guide plate and the rotating plate into the inside of the compression box, so that the waste plastics are automatically discharged into the compression box after being crushed, without the need for transfer operations, which is convenient for subsequent direct compression;

[0027] 4. The coordination of round rods, corrugated strips and convex blocks enables the rotating plate to discharge materials evenly during the swinging process, and the up and down movement of the compression box can also cause the fragments to shake, so that the waste plastic fragments are spread flat inside the compression box, improving the compression quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the waste plastic recycling device of the present invention.

[0029] Figure 2 It is a schematic diagram of the internal structure of the waste plastic recycling device of the present invention.

[0030] Figure 3 It is a schematic cross-sectional structure diagram of the waste plastic recycling device of the present invention.

[0031] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure in the middle.

[0032] Figure 5 It is a schematic diagram of the structure of the guide plate and the rotating plate of the present invention.

[0033] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0034] Figure 7 It is a schematic diagram of the arc plate and the convex block structure of the present invention.

[0035] Figure 8 It is a schematic diagram of the rotating plate and the corrugated strip structure of the present invention.

[0036] Fig. 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point C in the middle.

[0037] Fig.10 For the present invention Figure 8 Enlarged schematic diagram of the structure at point D in the middle.

[0038] Fig.11 For the present invention Figure 8 Enlarged schematic diagram of the structure at point E in the middle.

[0039] In the figure: 1. recovery box; 2. crushing chamber; 3. compression chamber; 4. guide plate; 5. rotating plate; 6. compression box; 7. first slide groove; 8. round block; 9. pressure plate; 10. round hole; 11. round rod; 12. wave bar; 13. arc plate; 14. convex block; 15. round plate; 16. first spring; 17. second slide groove; 18. slide plate; 19. first electric push rod; 20. second electric push rod; 21. vertical box; 22. square plate; 23. second spring; 24. third electric push rod; 25. square groove; 26. sealing plate; 27. material trough; 28. crushing equipment; 29. ​​feed hopper; 30. arc groove. DETAILED DESCRIPTION

[0040] The present invention provides Figures 1 to 11 The waste plastic recycling device shown includes a recycling box 1, and a crushing chamber 2 and a compression chamber 3 are arranged inside the recycling box 1. The crushing chamber 2 is located on one side of the top of the recycling box 1. A feed hopper 29 that cooperates with the crushing chamber 2 is arranged on the top of the recycling box 1. A crushing device 28 for crushing waste plastics is arranged at the crushing chamber 2. The crushing device 28 includes a crushing roller, a gear, a motor and other structures. The crushing device 28 is an existing common technology and will not be described in detail here. Specifically, the operator pours the waste plastic from the feed hopper 29 into the interior of the crushing chamber 2, and the crushing device 28 crushes the waste plastic, and the waste plastic is crushed into fragments inside the crushing chamber 2.

[0041] Considering that in the prior art, crushing and compression require two devices to be performed separately, the operation is cumbersome, affecting the recovery efficiency and increasing the cost of equipment use, in order to improve the recovery efficiency, a compression box 6 for compressing the broken pieces is provided inside the compression chamber 3, and the compression box 6 is located on the side of the recovery box 1 away from the crushing chamber 2 (refer to Figure 3 , one on the left and one on the right).

[0042] A second slide groove 17 is provided on the inner walls on both sides of the recovery box 1, and a slide plate 18 is slidably provided inside the second slide groove 17, and the slide plate 18 is fixedly connected to the outer wall of the compression box 6. The second slide groove 17 and the slide plate 18 are provided to improve the stability of the compression box 6 sliding up and down.

[0043] A guide plate 4 is provided below the crushing chamber 2. The guide plate 4 is fixedly connected to the inner wall of the recovery box 1. A rotating plate 5 is hingedly connected to one end of the guide plate 4 close to the compression box 6. The guide plate 4 is tilted, and the end close to the rotating plate 5 is tilted downward. First chutes 7 are provided on both sides of the inner wall of the compression box 6. Round blocks 8 are slidably provided inside the first chutes 7. The round blocks 8 are fixedly connected to the side wall of the rotating plate 5, so that the end of the rotating plate 5 away from the guide plate 4 is slidably provided on the top of the compression box 6.

[0044] Since the guide plate 4 is inclined and the end close to the rotating plate 5 is inclined downward, the broken pieces slide along the guide plate 4 and the rotating plate 5 to the inside of the compression box 6, so that the waste plastics are automatically discharged into the compression box 6 after being crushed, without the need for transfer operations, which is convenient for subsequent direct compression.

[0045] A second electric push rod 20 is fixedly connected to the lower surface of the bottom of the recycling box 1, and the compression box 6 is fixedly connected to the telescopic end of the second electric push rod 20. The second electric push rod 20 drives the recycling box 1 to move up and down.

[0046] A pressure plate 9 is slidingly arranged inside the compression box 6, a first electric push rod 19 is fixedly connected to the lower surface of the bottom of the compression box 6, and a through groove is opened at the bottom of the compression box 6 for the telescopic end of the first electric push rod 19 to pass through, and the pressure plate 9 is fixedly connected to the telescopic end of the first electric push rod 19.

[0047] A vertical box 21 is slidably provided inside the compression box 6, a square plate 22 is slidably provided inside the vertical box 21, and the square plate 22 abuts against the upper surface of the pressing plate 9, a second spring 23 is provided inside the vertical box 21, one end of the second spring 23 is fixedly connected to the lower surface of the top of the vertical box 21, and the other end of the second spring 23 is fixedly connected to the top of the square plate 22. A third electric push rod 24 is fixedly connected to the side wall of the compression box 6, and the third electric push rod 24 is located below the material guide plate 4, and the vertical box 21 is fixedly connected to the telescopic end of the third electric push rod 24.

[0048] When the pressing plate 9 slides upward inside the compression box 6, it will drive the square plate 22 to be recovered into the interior of the vertical box 21. During the actual operation, the amount of fragments fed into the compression box 6 is appropriate. After being completely compressed into a ball shape, the overall thickness of the ball of fragments is greater than the height of the vertical box 21.

[0049] A square groove 25 is provided on the side of the compression box 6 away from the third electric push rod 24, and a sealing plate 26 is provided in the square groove 25. In actual use, a latch and other structures are provided between the sealing plate 26 and the compression box 6 to fix the position of the sealing plate 26, which can be adjusted according to specific use conditions. A material taking groove 27 is provided on the side of the recycling box 1 close to the square groove 25. When the compression box 6 moves to the highest position, the material taking groove 27 corresponds to the square groove 25.

[0050] During actual use, the second electric push rod 20 is started. When the telescopic end of the second electric push rod 20 is extended, the compression box 6 is driven to move upward, the round block 8 slides in the direction of the closing plate 26 inside the first slide groove 7, and the end of the rotating plate 5 away from the guide plate 4 swings upward adaptively; when the telescopic end of the second electric push rod 20 is controlled to be retracted, the compression box 6 is driven to move downward, the round block 8 slides in the direction away from the closing plate 26 inside the first slide groove 7, and the end of the rotating plate 5 away from the guide plate 4 swings downward adaptively; as the compression box 6 moves up and down, the fragments inside it shake and are filled more tightly, which is convenient for subsequent compression; at the same time, the end of the rotating plate 5 away from the guide plate 4 slides back and forth on the top of the compression box 6 to adjust the unloading position and avoid accumulation.

[0051] When the waste plastic is completely crushed and falls into the compression box 6, the telescopic end of the second electric push rod 20 is controlled to extend, driving the compression box 6 to move upward, and the round block 8 slides toward the closing plate 26 inside the first slide groove 7, and the rotating plate 5 swings adaptively; when the rotating plate 5 swings to a horizontal state, the lower surface of the rotating plate 5 abuts against the top of the compression box 6 near the vertical box 21, and the slide plate 18 slides to the top of the second slide groove 17. At this time, the rotating plate 5 can no longer swing; and the closing plate 26 corresponds to the position of the material trough 27.

[0052] The telescopic end of the first electric push rod 19 is controlled to extend, driving the pressing plate 9 to slide upward inside the compression box 6. At this time, the rotating plate 5 closes the top of the compression box 6 to play a limiting role and compress the fragments; and the square plate 22 is retracted into the interior of the vertical box 21 by the squeezing effect of the pressing plate 9.

[0053] A rotating plate 5 is provided to facilitate the feeding of crushed materials into the compression box 6. At the same time, the rotating plate 5 slides back and forth on the top of the compression box 6 to adjust the feeding position. During compression, the top of the compression box 6 is closed to play a role of limiting.

[0054] After the pieces are compressed into a ball, the operator opens the sealing plate 26, places the packaging bag in the square groove 25, controls the telescopic end of the third electric push rod 24 to extend, and pushes the compressed ball-shaped waste plastic through the square groove 25 into the interior of the packaging bag through the vertical box 21 and the square plate 22, thereby completing the packaging operation.

[0055] By arranging structures such as the guide plate 4 and the rotating plate 5, crushing and compression are integrated into one, and packaging is convenient. At the same time, the compression box 6 moves up and down to fill the broken pieces more tightly, and the end of the rotating plate 5 away from the guide plate 4 slides back and forth on the top of the compression box 6 to adjust the unloading position, avoid accumulation, and improve the utilization efficiency of the waste plastic recycling device.

[0056] Taking into account that the inclination angle will change during the swinging process of the rotating plate 5, affecting the sliding speed of the crushed materials, such as: when the end of the rotating plate 5 away from the guide plate 4 swings upward, the sliding speed of the crushed materials on the rotating plate 5 will gradually decrease due to the gradual decrease in the inclination angle of the rotating plate 5. In order to achieve uniform material discharge, a round rod 11 is arranged inside the compression chamber 3, and round holes 10 are opened on both sides of the rotating plate 5 for the round rod 11 to slide through. A wavy bar 12 is fixedly connected to the round rod 11, and the wavy bar 12 is attached to the upper surface of the rotating plate 5. The wavy bar 12 is arranged in plurality, and the plurality of wavy bars 12 are evenly distributed.

[0057] Arc grooves 30 are provided on the inner walls on both sides of the recycling box 1, wherein the upper half of one of the arc grooves 30 is fixedly connected to an arc plate 13, and the length of the arc plate 13 can be adjusted according to specific usage conditions, a protrusion 14 is fixedly connected to the arc plate 13, and the round rod 11 abuts against the protrusion 14; a circular plate 15 is provided inside the other arc groove 30, and the circular plate 15 is fixedly connected to the round rod 11, and a first spring 16 is sleeved on the outside of the round rod 11, one end of the first spring 16 is fixedly connected to the outer wall of the rotating plate 5, and the other end of the first spring 16 is fixedly connected to the circular plate 15.

[0058] There are multiple bumps 14, and the distance between two adjacent bumps 14 gradually decreases from bottom to top.

[0059] During actual operation, when the round rod 11 corresponds to the lower half of the arc groove 30, the inclination angle of the rotating plate 5 is relatively large, the round rod 11 and the arc plate 13 are staggered, the corrugated bar 12 will not slide, and because the corrugated bar 12 is curved, it has a certain delaying effect to avoid excessive material feeding.

[0060] As the end of the rotating plate 5 continues to swing upward away from the guide plate 4 and the round rod 11 corresponds to the arc plate 13, when the round rod 11 contacts the protrusion 14, the round rod 11 will slide in the direction away from the protrusion 14, and when the round rod 11 is staggered with the protrusion 14, under the action of the restoring elastic force of the first spring 16, the round rod 11 slides and resets, so that the round rod 11 drives the wavy bar 12 to move back and forth, to move the fragments, and to accelerate the sliding of the fragments.

[0061] The distance between two adjacent protrusions 14 gradually decreases from bottom to top. As the inclination angle of the rotating plate 5 gradually decreases, the frequency of the back-and-forth movement of the wave strip 12 gradually increases, and the shifting speed gradually increases, thereby ensuring the uniformity of material feeding.

[0062] The cooperation of the round rods 11, the wavy strips 12 and the protrusions 14 enables the rotating plate 5 to discharge the material evenly during the swinging process, and the up and down movement of the compression box 6 can also cause the fragments to shake, so that the waste plastic fragments are spread flat inside the compression box 6, thereby improving the compression quality.

[0063] The present invention also provides a waste plastic recycling system, using the above waste plastic recycling device, and further comprising the following operating steps:

[0064] S1. Classification: Classify waste plastics according to their materials, such as PET, HDPE, etc.

[0065] S2. Cleaning: Use cleaning and other methods to remove pollutants from waste plastics and improve recycling quality;

[0066] S3. Crushing: The waste plastic is crushed into pieces and laid flat, and the flattened pieces are directly compressed, which integrates crushing and compression, reduces equipment costs, improves recycling efficiency, and is easy to store and transport after compression, and is subsequently melted and reshaped when needed;

[0067] S4, Melting and Reshaping: After high-temperature melting, molding and other operations, it is reshaped into new products.

[0068] Working principle: Use the sealing plate 26 to close the square groove 25, control the retractable end of the first electric push rod 19 to be retracted, and the pressing plate 9 is attached to the bottom of the compression box 6, while controlling the retraction of the third electric push rod 24.

[0069] The operator pours the waste plastic from the feed hopper 29 into the crushing chamber 2, and the crushing equipment 28 crushes the waste plastic, and the crushed pieces fall onto the guide plate 4. Since the guide plate 4 is inclined and the end close to the rotating plate 5 is inclined downward, the pieces slide along the guide plate 4 and the rotating plate 5 to the inside of the compression box 6, so that the waste plastic is automatically discharged into the compression box 6 after being crushed, without the need for transfer operations, which is convenient for subsequent direct compression.

[0070] At the same time, the second electric push rod 20 is started. When the telescopic end of the second electric push rod 20 is extended, the compression box 6 is driven to move upward, the round block 8 slides inside the first slide groove 7 toward the closing plate 26, and the end of the rotating plate 5 away from the material guide plate 4 swings upward adaptively; when the telescopic end of the second electric push rod 20 is controlled to be retracted, the compression box 6 is driven to move downward, the round block 8 slides inside the first slide groove 7 toward the direction away from the closing plate 26, and the end of the rotating plate 5 away from the material guide plate 4 swings downward adaptively; as the compression box 6 moves up and down, the end of the rotating plate 5 away from the material guide plate 4 slides back and forth on the top of the compression box 6 to adjust the unloading position to avoid accumulation.

[0071] When the round rod 11 is in contact with the protrusion 14, the round rod 11 will slide in the direction away from the protrusion 14, and when the round rod 11 is staggered with the protrusion 14, the round rod 11 will slide back and forth under the action of the reset elastic force of the first spring 16, so that the round rod 11 drives the wave bar 12 to move back and forth, and the fragments are moved to accelerate the sliding of the fragments; and the distance between two adjacent protrusions 14 gradually decreases from bottom to top, and as the inclination angle of the rotating plate 5 gradually decreases, the frequency of the wave bar 12 moving back and forth gradually increases, and the moving speed gradually increases, so as to ensure the uniformity of the material feeding.

[0072] The cooperation of the round rods 11, the wavy strips 12 and the protrusions 14 enables the rotating plate 5 to discharge the material evenly during the swinging process, and the up and down movement of the compression box 6 can also cause the fragments to shake, so that the waste plastic fragments are spread flat inside the compression box 6, which is convenient for subsequent compression into blocks.

[0073] When the waste plastic is completely crushed and falls into the compression box 6, the telescopic end of the second electric push rod 20 is controlled to extend, driving the compression box 6 to move upward, and the round block 8 slides toward the closing plate 26 inside the first slide groove 7, and the rotating plate 5 swings adaptively; when the rotating plate 5 swings to a horizontal state, the lower surface of the rotating plate 5 abuts against the top of the compression box 6 near the vertical box 21, and the slide plate 18 slides to the top of the second slide groove 17. At this time, the rotating plate 5 can no longer swing; and the closing plate 26 corresponds to the position of the material trough 27.

[0074] The telescopic end of the first electric push rod 19 is controlled to extend, driving the pressing plate 9 to slide upward inside the compression box 6. At this time, the rotating plate 5 closes the top of the compression box 6 to play a limiting role and compress the fragments; and the square plate 22 is retracted into the interior of the vertical box 21 by the squeezing effect of the pressing plate 9.

[0075] After the pieces are compressed into a ball, the operator opens the sealing plate 26, places the packaging bag in the square groove 25, controls the telescopic end of the third electric push rod 24 to extend, and pushes the compressed ball of waste plastic into the packaging bag through the square groove 25, thereby completing the packaging operation.

Claims

1. A waste plastic recycling device, comprising a recycling box (1), characterized in that: The recycling box (1) is provided with a crushing chamber (2) and a compression chamber (3) inside, the crushing chamber (2) is located on one side of the top of the recycling box (1), and the waste plastic is crushed into fragments inside the crushing chamber (2); A compression box (6) for compressing the crushed pieces is arranged inside the compression chamber (3), and the compression box (6) is located on a side of the recovery box (1) away from the crushing chamber (2); A material guide plate (4) is arranged below the crushing chamber (2), the material guide plate (4) is fixedly connected to the inner wall of the recovery box (1), a rotating plate (5) is hingedly connected to one end of the material guide plate (4) close to the compression box (6), and the end of the rotating plate (5) away from the material guide plate (4) is slidably arranged on the top of the compression box (6); When the compression box (6) slides up and down, the end of the rotating plate (5) away from the guide plate (4) slides back and forth on the top of the compression box (6), and the broken pieces evenly enter the interior of the compression box (6). When compressed, the rotating plate (5) closes the top of the compression box (6).

2. The waste plastic recycling device according to claim 1, characterized in that: The inner walls on both sides of the compression box (6) are provided with first sliding grooves (7), and a round block (8) is slidably arranged inside the first sliding groove (7), and the round block (8) is fixedly connected to the side wall of the rotating plate (5).

3. The waste plastic recycling device according to claim 1, characterized in that: A round rod (11) is arranged inside the compression chamber (3), and round holes (10) are provided on both sides of the rotating plate (5) for the round rod (11) to slide through. A corrugated strip (12) is fixedly connected to the round rod (11), and the corrugated strip (12) is attached to the upper surface of the rotating plate (5). The corrugated strip (12) is arranged in a plurality, and the plurality of corrugated strips (12) are evenly distributed.

4. The waste plastic recycling device according to claim 3, characterized in that: Arc grooves (30) are provided on the inner walls of both sides of the recycling box (1), wherein the upper half of one of the arc grooves (30) is fixedly connected to an arc plate (13), the arc plate (13) is fixedly connected to a protrusion (14), the round rod (11) abuts against the protrusion (14), and the inside of the other arc groove (30) is provided with a circular plate (15), the circular plate (15) is fixedly connected to the round rod (11), and the outside of the round rod (11) is sleeved with a first spring (16), one end of the first spring (16) is fixedly connected to the outer wall of the rotating plate (5), and the other end of the first spring (16) is fixedly connected to the circular plate (15).

5. The waste plastic recycling device according to claim 4, characterized in that: The convex blocks (14) are arranged in plurality, and the distance between two adjacent convex blocks (14) gradually decreases from bottom to top.

6. The waste plastic recycling device according to claim 1, characterized in that: The compression box (6) is provided with a pressure plate (9) for sliding inside, the lower surface of the bottom of the compression box (6) is fixedly connected with a first electric push rod (19), and the bottom of the compression box (6) is provided with a through groove for the telescopic end of the first electric push rod (19) to pass through, the pressure plate (9) is fixedly connected to the telescopic end of the first electric push rod (19), the lower surface of the bottom of the recovery box (1) is fixedly connected with a second electric push rod (20), the compression box (6) is fixedly connected to the telescopic end of the second electric push rod (20), the inner walls on both sides of the recovery box (1) are provided with second slide grooves (17), the second slide grooves (17) are slidably provided with slide plates (18), and the slide plates (18) are fixedly connected to the outer wall of the compression box (6).

7. The waste plastic recycling device according to claim 1, characterized in that: A vertical box (21) is slidably provided inside the compression box (6), a square plate (22) is slidably provided inside the vertical box (21), and the square plate (22) abuts against the upper surface of the pressure plate (9), a second spring (23) is provided inside the vertical box (21), one end of the second spring (23) is fixedly connected to the lower surface of the top of the vertical box (21), and the other end of the second spring (23) is fixedly connected to the top of the square plate (22), a third electric push rod (24) is fixedly connected to the side wall of the compression box (6), and the third electric push rod (24) is located below the material guide plate (4), the vertical box (21) is fixedly connected to the telescopic end of the third electric push rod (24), a square groove (25) is provided on the side of the compression box (6) away from the third electric push rod (24), a sealing plate (26) is matched in the square groove (25), and a material taking groove (27) is provided on the side of the recovery box (1) close to the square groove (25).

8. The waste plastic recycling device according to claim 1, characterized in that: The material guide plate (4) is arranged at an angle, and one end close to the rotating plate (5) is inclined downward.

9. The waste plastic recycling device according to claim 1, characterized in that: The crushing chamber (2) is provided with a crushing device (28) for crushing waste plastics, and the top of the recovery box (1) is provided with a feeding hopper (29) that cooperates with the crushing chamber (2).

10. Waste plastic recycling system, characterized by: The waste plastic recycling device according to any one of claims 1 to 9 further comprises the following steps: S1. Classification: Classify waste plastics according to their materials; S2, cleaning: remove pollutants from waste plastics; S3. Crushing: the waste plastic is crushed into pieces and laid flat, and the flattened pieces are directly compressed; S4, Melting and Reshaping: After being melted at high temperature, it is reshaped into new products.

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