Waste Plastic Recycling Device and Recycling Method

Abstract

The present invention discloses a waste plastic recycling device and a recycling method, which relates to the technical field of waste plastic recycling devices. The device includes a recycling box, and a crushing chamber and a compression chamber are arranged inside the recycling box. The crushing chamber is located on one side of the top of the recycling box, and waste plastics are crushed into pieces inside the crushing chamber. A compression box for compressing the pieces is arranged inside the compression chamber, and the compression box is located on the side of the recycling box away from the crushing chamber. A guide plate is arranged below the crushing chamber, the guide plate is fixedly connected to the inner wall of the recycling box, and a rotating plate is hinged to one end of the guide plate close to the compression box. In this waste plastic recycling device, through the arrangement of structures such as the guide plate and the rotating plate, it integrates crushing and compression, and is convenient for packing. At the same time, the compression box moves up and down to make the pieces fill more tightly, and one end of the rotating plate away from the guide plate slides back and forth on the top of the compression box to adjust the feeding position, avoiding accumulation and improving the use efficiency of the waste plastic recycling device.

Description

Technical Field

[0001] The present invention relates to the technical field of waste plastic recycling devices, and particularly to waste plastic recycling devices and recycling methods. Background Art

[0002] With the continuous increase in the consumption of plastic products, the amount of waste plastic is also increasing. The main types of waste plastic in China are plastic films, plastic filaments and woven products, foam plastics, plastic packaging boxes and containers, daily-use plastic products, plastic bags, and agricultural mulch films, etc.

[0003] In the process of waste plastic recycling, crushing and compressing treatments are required to compress the plastic into blocks for convenient subsequent storage and transportation. In the prior art, however, crushing and compressing need to be carried out by two separate devices, which is cumbersome in operation, affects the recycling efficiency, and increases the equipment usage cost.

[0004] Therefore, it is necessary to propose a waste plastic recycling device and a recycling method 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 recycling method to solve the problem that in the process of waste plastic recycling, crushing and compressing treatments are required to compress the plastic into blocks for convenient subsequent storage and transportation, while in the prior art, crushing and compressing need to be carried out by two separate devices, which is cumbersome in operation, affects the recycling efficiency, and increases the equipment usage cost.

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

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

[0008] A guide plate is arranged below the crushing chamber. The guide plate is fixedly connected to the inner wall of the recycling box. One end of the guide plate close to the compression box is hinged with a rotating plate, and the end of the rotating plate away from the guide plate is slidably arranged on the top of the compression box;

[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 pieces evenly enter the inside of the compression box. During compression, the rotating plate closes the top end of the compression box.

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

[0011] Preferably, a round rod is arranged inside the compression chamber. Round holes for the round rod to slide through are formed on both sides of the rotating plate. A wavy strip is fixedly connected to the round rod, and the wavy strip is attached to the upper surface of the rotating plate. A plurality of wavy strips are provided, and the plurality of wavy strips are evenly distributed.

[0012] Preferably, arc grooves are formed on the inner walls of both sides of the recycling box. An arc plate is fixedly connected to the upper half of one of the arc grooves. A convex block is fixedly connected to the arc plate. The round rod is in abutting cooperation with the convex block. A round plate is arranged inside the other arc groove. The round plate is fixedly connected to the round rod. A first spring is sleeved on the outer portion 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 round plate.

[0013] Preferably, a plurality of convex blocks are provided, and the distance between two adjacent convex blocks gradually decreases from bottom to top.

[0014] Preferably, a pressing plate is slidably arranged 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 for the telescopic end of the first electric push rod to pass through is formed at the bottom of the compression box. The pressing 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 recycling box. The compression box is fixedly connected to the telescopic end of the second electric push rod. Second sliding grooves are formed on the inner walls of both sides of the recycling box. A sliding plate is slidably arranged inside the second sliding groove, and the sliding plate is fixedly connected to the outer wall of the compression box.

[0015] Preferably, a vertical box is slidably arranged inside the compression box. A square plate is slidably arranged inside the vertical box, and the square plate abuts against the upper surface of the pressing plate. A second spring is arranged 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 guiding plate. The vertical box is fixedly connected to the telescopic end of the third electric push rod. A square groove is formed on one side of the compression box away from the third electric push rod. A sealing plate is fitted inside the square groove. A material taking groove is formed on one side of the recycling box close to the square groove.

[0016] Preferably, the material guiding plate is inclined, and the end close to the rotating plate is inclined downward.

[0017] Preferably, a crushing device for crushing waste plastics is arranged at the crushing chamber. A feed hopper cooperating with the crushing chamber is arranged at the top of the recycling box.

[0018] The present invention also discloses a waste plastic recycling method. Using the above-mentioned waste plastic recycling device, the following operation steps are further included:

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

[0020] S2. Cleaning: Remove contaminants from waste plastics;

[0021] S3. Crushing: Crush waste plastics into pieces and discharge and flatten them, and directly compress the flattened pieces;

[0022] S4. Melting and reshaping: After melting at high temperature, reshape into new products.

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

[0024] 1. By setting structures such as a guide plate and a rotating plate, the present invention integrates crushing and compression, is convenient for packing, and at the same time, the compression box moves up and down to make the pieces fill more tightly. Moreover, 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 discharging position, avoiding accumulation and improving the use efficiency of the waste plastic recycling device;

[0025] 2. Setting the rotating plate facilitates the discharge of crushed materials into the compression box, and at the same time slides back and forth on the top of the compression box to adjust the discharging position, and closes the top end of the compression box during compression to play a limiting role;

[0026] 3. Since the guide plate is inclined and the end close to the rotating plate is inclined downward, the pieces slide along the guide plate and the rotating plate into the compression box, realizing the automatic discharging of waste plastics into the compression box after crushing without operations such as transfer, which is convenient for subsequent direct compression;

[0027] 4. The cooperation of structures such as round rods, wavy strips and bumps enables the rotating plate to discharge materials evenly during the swinging process, and the up and down movement of the compression box can also make the pieces vibrate, so that the waste plastic pieces are laid flat in the compression box, improving the compression quality. 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 internal structural diagram of the waste plastic recycling device of the present invention.

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

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

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

[0033] Figure 6 For the present inventionFigure 5 Schematic enlarged view of the structure at position B in [the figure].

[0034] Figure 7 Schematic view of the arc plate and bump structure of the present invention.

[0035] Figure 8 Schematic view of the rotating plate and wavy strip structure of the present invention.

[0036] Figure 9 Of the present invention Figure 8 Schematic enlarged view of the structure at position C in [the figure].

[0037] Figure 10 Of the present invention Figure 8 Schematic enlarged view of the structure at position D in [the figure].

[0038] Figure 11 Of the present invention Figure 8 Schematic enlarged view of the structure at position E in [the figure].

[0039] In the figure: 1, recycling bin; 2, crushing chamber; 3, compression chamber; 4, guide plate; 5, rotating plate; 6, compression box; 7, first chute; 8, round block; 9, pressing plate; 10, round hole; 11, round rod; 12, wavy strip; 13, arc plate; 14, bump; 15, round plate; 16, first spring; 17, second chute; 18, sliding 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 taking groove; 28, crushing equipment; 29, feed hopper; 30, arc groove. Detailed implementation manners

[0040] The present invention provides a waste plastic recycling device as Figures 1 to 11 shown, which includes a recycling bin 1. Inside the recycling bin 1, there are a crushing chamber 2 and a compression chamber 3. The crushing chamber 2 is located on one side at the top of the recycling bin 1. At the top of the recycling bin 1, there is a feed hopper 29 that cooperates with the crushing chamber 2. At the crushing chamber 2, there is crushing equipment 28 for crushing waste plastic. The crushing equipment 28 includes structures such as crushing rollers, gears, motors, etc. The crushing equipment 28 is a common existing technology and will not be elaborated here. Specifically, the operator pours waste plastic into the inside of the crushing chamber 2 through the feed hopper 29, and the crushing equipment 28 crushes the waste plastic. The waste plastic is crushed into pieces inside the crushing chamber 2.

[0041] Considering that in the prior art, crushing and compression need to be carried out by two separate devices, the operation is cumbersome, affecting the recycling efficiency, and increasing the equipment usage cost. To improve the recycling efficiency, inside the compression chamber 3, there is a compression box 6 for compressing the pieces, and the compression box 6 is located on the side of the recycling bin 1 away from the crushing chamber 2 (refer to Figure 3 , distributed one on the left and one on the right).

[0042] On both inner walls of the recycling bin 1, second sliding grooves 17 are provided. A sliding plate 18 is slidably arranged inside the second sliding grooves 17, and the sliding plate 18 is fixedly connected to the outer wall of the compression box 6. The provision of the second sliding grooves 17 and the sliding plate 18 improves the stability of the up-and-down sliding of the compression box 6.

[0043] A material guiding plate 4 is arranged below the crushing chamber 2. The material guiding plate 4 is fixedly connected to the inner wall of the recycling bin 1. One end of the material guiding plate 4 close to the compression box 6 is hinged with a rotating plate 5. The material guiding plate 4 is inclined, and the end close to the rotating plate 5 is inclined downward. On both inner walls of the compression box 6, first sliding grooves 7 are provided. A round block 8 is slidably arranged inside the first sliding grooves 7, and the round block 8 is fixedly connected to the side wall of the rotating plate 5, so that one end of the rotating plate 5 away from the material guiding plate 4 is slidably arranged on the top of the compression box 6.

[0044] Since the material guiding plate 4 is inclined and the end close to the rotating plate 5 is inclined downward, the broken pieces slide along the material guiding plate 4 and the rotating plate 5 into the inside of the compression box 6, realizing the automatic feeding of the waste plastic into the inside of the compression box 6 after crushing, without operations such as transfer, which is convenient for subsequent direct compression.

[0045] The lower surface of the bottom of the recycling bin 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, and the second electric push rod 20 drives the recycling bin 1 to move up and down.

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

[0047] A vertical box 21 is slidably arranged inside the compression box 6. A square plate 22 is slidably arranged 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 arranged 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 guiding plate 4. 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 retract into the vertical box 21. In the actual operation process, the amount of broken pieces fed into the inside of the compression box 6 is appropriate. After being completely compressed into a ball shape, the overall thickness of the broken piece ball is greater than the height of the vertical box 21.

[0049] On one side of the compression box 6 away from the third electric push rod 24, a square groove 25 is provided. A sealing plate 26 is fitted in the square groove 25. During actual use, structures such as a bolt are arranged 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 usage conditions. On one side of the recycling box 1 close to the square groove 25, a material taking groove 27 is provided. 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, start the second electric push rod 20. When the telescopic end of the second electric push rod 20 extends, it drives the compression box 6 to move upward. The round block 8 slides inside the first chute 7 towards the sealing plate 26, and the end of the rotating plate 5 away from the material guiding plate 4 swings upward adaptively. When controlling the telescopic end of the second electric push rod 20 to retract, it drives the compression box 6 to move downward. The round block 8 slides inside the first chute 7 away from the sealing plate 26, and the end of the rotating plate 5 away from the material guiding plate 4 swings downward adaptively. As the compression box 6 moves up and down, the debris inside it shakes and is filled more tightly, facilitating subsequent compression. At the same time, the end of the rotating plate 5 away from the material guiding plate 4 slides back and forth on the top of the compression box 6 to adjust the material discharging position and avoid accumulation.

[0051] After the waste plastic is completely crushed and falls into the compression box 6, control the telescopic end of the second electric push rod 20 to extend, driving the compression box 6 to move upward. The round block 8 slides inside the first chute 7 towards the sealing plate 26, and the rotating plate 5 swings adaptively. When the rotating plate 5 swings to the horizontal state, the lower surface of the rotating plate 5 abuts against the position on the top of the compression box 6 close to the vertical box 21. At the same time, the sliding plate 18 slides to the top end of the second chute 17. At this time, the rotating plate 5 can no longer swing. And the positions of the sealing plate 26 and the material taking groove 27 correspond.

[0052] Control the telescopic end of the first electric push rod 19 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, playing a limiting role and compressing the debris. And due to the extrusion of the pressing plate 9, the square plate 22 retracts into the vertical box 21.

[0053] The rotating plate 5 is provided to facilitate the feeding of the shredded material into the compression box 6, and at the same time, it slides back and forth on the top of the compression box 6 to adjust the feeding position, and closes the top of the compression box 6 during compression, playing a limiting role.

[0054] After the debris is compressed into a ball shape, the operator opens the sealing plate 26, places the packaging bag at the square groove 25, controls the telescopic end of the third electric push rod 24 to extend, and through the vertical box 21 and the square plate 22, pushes the compressed ball-shaped waste plastic into the packaging bag through the square groove 25, thus 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] Structures such as the round rod 11, the wavy strip 12, and the bump 14 cooperate to enable the rotating plate 5 to discharge materials evenly during the swinging process. Moreover, the up-and-down movement of the compression box 6 can also make the crushed blocks vibrate, so that the waste plastic crushed blocks are laid flat inside the compression box 6, improving the compression quality.

[0063] The present invention also proposes a waste plastic recycling method, which uses the above-mentioned waste plastic recycling device and further includes the following operating steps:

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

[0065] S2. Cleaning: Remove contaminants on waste plastics by means of cleaning, etc., to improve the recycling quality;

[0066] S3. Crushing: Crush waste plastics into crushed blocks and discharge and level them, and directly compress the leveled crushed blocks, integrating crushing and compression, reducing equipment costs, improving recycling efficiency, and being convenient for storage and transportation after compression. When needed, subsequent melting and reshaping are carried out;

[0067] S4. Melting and reshaping: After operations such as high-temperature melting and forming, they are reshaped into new products.

[0068] Working principle: Use the sealing plate 26 to close the square groove 25, control the telescopic end of the first electric push rod 19 to retract, the pressing plate 9 fits to the bottom of the compression box 6, and at the same time control the third electric push rod 24 to retract.

[0069] The operator pours waste plastics into the inside of the crushing chamber 2 from the feed hopper 29, and the crushing device 28 crushes the waste plastics. The crushed blocks 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 crushed blocks slide along the guide plate 4 and the rotating plate 5 into the inside of the compression box 6, realizing the automatic feeding of the crushed waste plastics into the inside of the compression box 6 after crushing, without operations such as transfer, which is convenient for subsequent direct compression.

[0070] At the same time, start the second electric push rod 20. When the telescopic end of the second electric push rod 20 extends, it drives the compression box 6 to move upward. The round block 8 slides in the first chute 7 towards the sealing plate 26, and the end of the rotating plate 5 away from the guide plate 4 swings upward adaptively; when controlling the telescopic end of the second electric push rod 20 to retract, it drives the compression box 6 to move downward. The round block 8 slides in the first chute 7 towards the direction away from the sealing plate 26, 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 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 feeding position and 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. Waste plastic recycling device, including a recycling bin (1), characterized in that: Inside the recycling bin (1), there is a crushing chamber (2) and a compression chamber (3). The crushing chamber (2) is located on one side of the top of the recycling bin (1), and the waste plastic is crushed into pieces inside the crushing chamber (2). Inside the compression chamber (3), there is a compression box (6) for compressing the pieces, and the compression box (6) is located on the side of the recycling bin (1) away from the crushing chamber (2). Below the crushing chamber (2), there is a guide plate (4). The guide plate (4) is fixedly connected to the inner wall of the recycling bin (1). One end of the guide plate (4) close to the compression box (6) is hinged with a rotating plate (5). The end of the rotating plate (5) away from the 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 pieces evenly enter the inside of the compression box (6). During compression, the rotating plate (5) closes the top of the compression box (6).

2. The waste plastic recycling device according to claim 1, wherein: On both inner walls of the compression box (6), there are first sliding grooves (7). Inside the first sliding grooves (7), there are round blocks (8) slidably arranged. The round blocks (8) are fixedly connected to the side wall of the rotating plate (5).

3. The waste plastic recycling device according to claim 1, characterized in that: Inside the compression chamber (3), there is a round rod (11). On both sides of the rotating plate (5), there are round holes (10) for the round rod (11) to slide through. There is a wavy strip (12) fixedly connected to the round rod (11), and the wavy strip (12) is attached to the upper surface of the rotating plate (5). The wavy strips (12) are arranged in multiple numbers, and the multiple wavy strips (12) are evenly distributed.

4. The waste plastic recycling device according to claim 3, wherein: On both inner walls of the recycling bin (1), there are arc grooves (30). On the upper half of one of the arc grooves (30), there is an arc plate (13) fixedly connected. There is a convex block (14) fixedly connected to the arc plate (13). The round rod (11) is in abutting cooperation with the convex block (14). Inside the other arc groove (30), there is a round plate (15). The round plate (15) is fixedly connected to the round rod (11). The outer part 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 round plate (15).

5. The waste plastic recycling device according to claim 4, wherein: The convex blocks (14) are arranged in multiple numbers, 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, wherein: A pressing plate (9) is slidably arranged inside the compression box (6). The lower surface of the bottom of the compression box (6) is fixedly connected with a first electric push rod (19), and a through groove for the telescopic end of the first electric push rod (19) to pass through is formed in the bottom of the compression box (6). The pressing plate (9) is fixedly connected to the telescopic end of the first electric push rod (19). The lower surface of the bottom of the recycling box (1) is fixedly connected with a second electric push rod (20), and the compression box (6) is fixedly connected to the telescopic end of the second electric push rod (20). Second sliding grooves (17) are formed in the inner walls on both sides of the recycling box (1), and a sliding plate (18) is slidably arranged inside the second sliding grooves (17), and the sliding plate (18) is 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 arranged inside the compression box (6). A square plate (22) is slidably arranged 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 arranged 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 guiding 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 formed in one side of the compression box (6) away from the third electric push rod (24), a sealing plate (26) is fitted inside the square groove (25), and a material taking groove (27) is formed in one side of the recycling box (1) close to the square groove (25).

8. The waste plastic recycling device according to claim 1, wherein: The material guiding plate (4) is inclined, and the end close to the rotating plate (5) is inclined downward.

9. The waste plastic recycling device according to claim 1, wherein: A crushing device (28) for crushing waste plastics is arranged at the crushing chamber (2), and a feed hopper (29) matched with the crushing chamber (2) is arranged at the top of the recycling box (1).

10. Waste plastic recycling method, characterized in that: When using the waste plastic recycling device according to any one of claims 1 to 9, the following operation steps are further included: S1. Classification: Classify the waste plastics according to their materials. S2. Cleaning: Remove the pollutants on the waste plastics. S3. Crushing: Crush the waste plastics into pieces and lay them flat, and directly compress the laid pieces. S4. Melting and reshaping: After melting at high temperature, reshape them into new products.

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