Waste plastic product recycling and processing device

Abstract

The invention belongs to the technical field of nonmetal waste and scrap processing, and particularly relates to a waste plastic product recycling and processing device which comprises a recycling mechanism, a crushing box is arranged on one side of the recycling mechanism, two sets of mutually meshed crushing rollers are rotationally installed in the crushing box, gears are installed at one ends of the crushing rollers, and the two sets of gears are mutually meshed. The recycling mechanism comprises a rack, the crushing box is fixedly connected with the rack, two sets of transmission shafts are rotationally installed in the rack, chain wheels are installed at the two ends of each transmission shaft, chains are meshed with the two sets of chain wheels, and a plurality of sets of recycling boxes are distributed between the two sets of chains in a surrounding mode; according to the device, coarse crushed materials are recycled into the crushing box without shutdown, the machining efficiency of waste plastic products is improved, then the coarse crushed materials are automatically conveyed to the upper end opening of the crushing box by driving the multiple sets of recycling boxes to do circular motion, the automation rate of the device is increased, and meanwhile workers can recycle the coarse crushed materials more conveniently in a labor-saving mode.

Description

Technical Field

[0001] The present invention belongs to the technical field of processing and treatment of non-metallic waste and debris, and specifically relates to a recycling and processing device for waste plastic products. Background Art

[0002] The plastic recycling industry can reduce environmental pollution caused by landfill and incineration of garbage and protect the diversity of the ecosystem. It itself is a huge industrial chain, including multiple links such as collection, classification, transportation, and processing of plastics. Plastic processing includes crushing, pulverizing, cleaning, and pelletizing. Plastic crushing processing usually uses a crushing device. Therefore, the crushing device is an essential equipment in the plastic recycling industry.

[0003] The patent with publication number CN220903843U discloses a plastic product recycling and processing device, which includes a pulverizing box. There is a feeding port at the upper end of the pulverizing box. A baffle is arranged inside the pulverizing box. A recycling component is arranged below the baffle. Two groups of pulverizing rods are rotatably installed above the baffle. The pulverizing rods are driven by a first rotary motor. The recycling component includes a coarse material recycling frame, a mounting frame, a vibration motor, and a fine material recycling frame. Through the feeding port arranged at one end of the upper surface of the pulverizing box, when pouring plastic products for processing, the feeding speed can be slowed down through the buffer plate arranged inside the feeding port to avoid blockage caused by excessive feeding at one time. Through the recycling component detachably installed at one end of the pulverizing box, the pulverized plastic products can be classified and recycled during recycling, improving the speed during work and facilitating the progress of subsequent work. Through the baffle slidably connected inside the pulverizing box, it is convenient to collect and screen the materials falling into the recycling component when pulverizing plastic products.

[0004] In the above solution, as the recycling component screens the pulverized plastic, the amount of coarsely crushed materials accumulated in the coarse material recycling frame will be more and more. When the amount of coarsely crushed materials collected in the coarse material recycling frame is excessive, it is necessary to pause the device for pulverizing plastic products, and it is also necessary to pour the coarsely crushed materials in the coarse material recycling frame back into the feeding port. The automation rate of this operation process is low. Secondly, it is necessary to stop the machine, resulting in relatively low efficiency of plastic product pulverizing and processing. Therefore, the present invention provides a recycling and processing device for waste plastic products. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A waste plastic product recycling and processing device described in the present invention includes a recycling mechanism. A crushing box is arranged on one side of the recycling mechanism. Two mutually meshing crushing rollers are rotatably installed in the crushing box. A gear is installed at one end of the crushing roller, and the two gears mesh with each other. A guide plate is arranged below the crushing roller, and a screen plate is arranged below the guide plate. The recycling mechanism includes a frame. The crushing box is fixedly connected to the frame. Two transmission shafts rotatably installed in the frame, with sprockets installed at both ends of the transmission shafts. Chains mesh with the two sprockets. A number of recycling boxes distributed around the two chains. The recycling boxes are fixedly installed on the receiving frame. The two ends of the receiving frame are respectively fixedly connected to the two chains. An inlet is opened at the lower end of the crushing box near the screen plate, and an outlet is opened at the lower end of the crushing box. One of the crushing rollers is driven by a first motor. A second motor for driving one of the transmission shafts is fixedly installed on one side of the upper end of the frame; When recycling the coarsely crushed materials into the crushing box, there is no need to stop the machine, which improves the processing efficiency of waste plastic products. Secondly, by driving a number of recycling boxes to move in a circular motion, the coarsely crushed materials are automatically conveyed to the upper port of the crushing box, which not only improves the automation rate of the device, but also makes it more convenient and labor-saving for workers to recycle the coarsely crushed materials.

[0007] Preferably, the receiving frame includes a bracket. Two chains are respectively fixedly connected to both sides of the bracket. Two movable seats symmetrically and movably installed on the bracket. A support shaft rotatably installed in the movable seat. One end of the support shaft is fixedly connected to the recycling box. Two springs symmetrically arranged on the bracket. One end of the guiding frame is fixedly connected to the bracket. One end of the spring is fixedly connected to the upper end of the movable seat, and the other end of the spring is fixedly connected to the bracket. Two chutes are symmetrically opened on the bracket. The two movable seats are respectively slidably connected to the two chutes. An L-shaped counterweight plate is arranged at the tail end of the recycling box. A pulley is rotatably installed at the lower end of the L-shaped counterweight plate. The guiding frame is used to guide the pulley. The guiding frame is composed of a first support surface, a limiting plate, an inclined surface, and a second support surface. A roller is rotatably installed at the other end of the support shaft. Two annular strips are symmetrically sleeved on the frame. A convex portion for pushing the roller is arranged on the annular strip; First, the pulley rolls along the first support surface and gets out of the limit of the limiting plate on the pulley until the pulley is pushed by the inclined surface, causing the L-shaped counterweight plate and the recycling box to rotate towards the crushing box, so that the coarsely crushed materials in the recycling box are poured into the crushing box, realizing the automatic recycling of the coarsely crushed materials into the crushing box. This not only further improves the automation rate of the device, but also makes it more convenient and safe for workers to recycle the coarsely crushed materials.

[0008] Preferably, linkage mechanisms are symmetrically arranged on both sides of the crushing box. The linkage mechanism includes a first pulley, which is installed at the end of the other set of crushing rollers. A second pulley is rotatably installed on the side of the crushing box. The second pulley and the first pulley are both rotatably connected to a synchronous belt. The upper end of the connecting rod is hinged to the second pulley. The screen plate includes a main frame, which is fixedly installed in the crushing box, and a wire mesh movably arranged in the main frame. Two sets of rectangular grooves are formed on both sides of the main frame. Guide columns are fixedly installed in the rectangular grooves. The guide columns are slidably connected to sliders. The sliders are fixedly connected to the sides of the wire mesh. The lower end of the connecting rod is hinged to a set of sliders; During the process of crushing plastic products by the crushing rollers, the crushed plastic products are screened by the wire mesh. At the same time, one set of crushing rollers drives the two first pulleys at both ends to rotate. The first pulley drives the second pulley to rotate through the synchronous belt. The second pulley drives the connecting rod, and the connecting rod drives the corresponding slider to move up and down along the guide column. Then the slider drives the wire mesh to shake up and down in the main frame, causing the crushed plastic products on the wire mesh to vibrate. This not only speeds up the screening of the crushed plastic products by the screen plate but also prevents the mesh holes on the wire mesh from being blocked.

[0009] The beneficial effects of the present invention are as follows: 1. When recycling the coarse crushed materials into the crushing box, there is no need to stop the machine, which improves the processing efficiency of waste plastic products. Secondly, by driving several sets of recycling boxes to move in a circular motion, the coarse crushed materials are automatically conveyed to the upper port of the crushing box, which not only improves the automation rate of the device but also makes it more convenient and labor-saving for workers to recycle the coarse crushed materials.

[0010] 2. When the recycling box moves to the upper end of the crushing box, the roller rolls to the convex part. As the recycling box continues to move upward, the roller will be squeezed by the convex part, causing the roller to drive the support shaft and the recycling box to move towards the crushing box. At the same time, the support shaft drives the movable seat to slide along the chute, and the movable seat stretches the spring. The moving recycling box drives the L-shaped counterweight plate and the pulley to move together. The pulley first rolls along the first support surface and gets out of the limit of the limiting plate on the pulley until the pulley is pushed by the inclined surface, causing the L-shaped counterweight plate and the recycling box to rotate towards the crushing box, so that the coarse crushed materials in the recycling box are poured into the crushing box, realizing the automatic recycling of the coarse crushed materials into the crushing box. This not only further improves the automation rate of the device but also makes it more convenient and safe for workers to recycle the coarse crushed materials.

[0011] 3. During the process of crushing plastic products by the crushing roller, the crushed plastic products are screened through a wire mesh. At the same time, a set of crushing rollers drives two groups of first pulleys at both ends to rotate. The first pulleys drive the second pulleys to rotate through a synchronous belt. The second pulleys drive the connecting rods, and the connecting rods drive the corresponding sliders to move up and down along the guide posts. Then, the sliders drive the wire mesh to shake up and down within the main frame, causing the crushed plastic products located on the wire mesh to vibrate. This not only speeds up the screening of the crushed plastic products by the screen plate but also prevents the mesh holes on the wire mesh from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic front sectional view of the structure of the present invention.

[0015] Figure 3 It is a schematic diagram of the crushing box, crushing roller, screen plate, discharge port, and gear combination of the present invention.

[0016] Figure 4 It is a schematic diagram of the chain, receiving frame, and recycling box combination of the present invention.

[0017] Figure 5 It is a schematic front sectional view of the combination of the receiving frame and the recycling box of the present invention.

[0018] Figure 6 It is a schematic diagram of the combination of the frame, receiving frame, recycling box, and crushing box of the present invention.

[0019] Figure 7 It is a schematic diagram of the combination of the crushing box, crushing roller, and linkage mechanism of the present invention.

[0020] Figure 8 It is a schematic diagram of the combination of the crushing box, crushing roller, discharge port, screen plate, and linkage mechanism of the present invention.

[0021] Figure 9 It is a schematic diagram of the combination of the second pulley, connecting rod, and screen plate of the present invention.

[0022] In the figure: 1. Recycling mechanism; 2. Crushing box; 3. Crushing roller; 4. Feeding guide plate; 5. Screen plate; 6. Feeding port; 7. Discharge port; 8. First motor; 9. Linkage mechanism; 10. Gear; 101. Frame; 1011. Ring strip; 11. Protrusion; 102. Transmission shaft; 103. Sprocket; 104. Chain; 105. Support frame; 106. Recycling box; 1061. L-shaped counterweight plate; 1062. Pulley; 107. Second motor; 1051. Bracket; 511. Chute; 1052. Movable seat; 521. Roller; 1053. Spring; 1054. Support shaft; 1055. Guide frame; 551. First support surface; 552. Limiting plate; 553. Inclined surface; 554. Second support surface; 501. Main frame; 502. Wire mesh; 503. Rectangular groove; 504. Guide post; 505. Slide block; 901. First pulley; 902. Synchronous belt; 903. Second pulley; 904. Connecting rod. Detailed implementation manners

[0023] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0024] Example 1: As Figures 1 to 3 shown, a waste plastic product recycling and processing device according to an embodiment of the present invention includes a recycling mechanism 1. A crushing box 2 is arranged on one side of the recycling mechanism 1. Two groups of mutually meshing crushing rollers 3 are rotatably installed in the crushing box 2. A gear 10 is installed at one end of the crushing roller 3. The two groups of gears 10 are mutually meshing. A feeding guide plate 4 is arranged below the crushing roller 3. A screen plate 5 is arranged below the feeding guide plate 4. The recycling mechanism 1 includes a frame 101. The crushing box 2 is fixedly connected to the frame 101. Two groups of transmission shafts 102 rotatably installed in the frame 101. Sprockets 103 are installed at both ends of the transmission shaft 102. A chain 104 meshes with the two groups of sprockets 103. A number of recycling boxes 106 distributed around the two groups of chains 104. The recycling box 106 is fixedly installed on the support frame 105. Both ends of the support frame 105 are respectively fixedly connected to the two groups of chains 104. A feeding port 6 is opened at the lower end of the crushing box 2 near the screen plate 5. A discharge port 7 is opened at the lower end of the crushing box 2. One group of crushing rollers 3 is driven by a first motor 8. A second motor 107 for driving one group of transmission shafts 102 is fixedly installed on one side of the upper end of the frame 101.

[0025] Specifically, in the initial state, the guide plate 4 and the screen plate 5 are both tiltedly installed in the crushing box 2, a group of recycling boxes 106 are opposite to the discharge port 7, and the port of the recycling box 106 is in contact with the side of the crushing box 2. When the waste plastic products need to be crushed, the waste plastic products are thrown into the crushing box 2 from the upper port of the crushing box 2, and at the same time, the first motor 8 drives the corresponding group of crushing rollers 3 to rotate, and the crushing rollers 3 are driven by the meshing transmission of two groups of gears 10 to rotate the other group of crushing rollers 3. The two groups of crushing rollers 3 rotating in opposite directions crush the waste plastic products thrown into the crushing box 2, and the crushed plastic products fall onto the guide plate 4 and pass through The guide plate 4 guides the crushed plastic products to fall to the upper end of the screen plate 5, and the crushed plastic products slide obliquely downward along the screen plate 5. In this process, the screen plate 5 screens the crushed plastic, and the fine crushed materials will pass through the screen plate 5 and be discharged from the discharge port 7, while the coarse crushed materials will slide along the screen plate 5 into the recovery box 106 facing the discharge port 7. When the recovery box 106 is full of coarse crushed materials, the second motor 107 is started, and the second motor 107 drives the corresponding transmission shaft 102 to rotate together with the sprocket 103, and the sprocket 103 drives the chain 104 together with several groups of receiving frames 105 and several groups of recovery boxes 106 to do circular motion. Figure 2 The direction indicated by the middle arrow is the circular motion direction, which causes the recycling box 106 containing the coarse crushed material to move upward, and the recycling box 106 begins to stagger the discharge port 7. In this process, the coarse crushed material that slides out of the discharge port 7 will fall into the next set of recycling box 106 until the next set of recycling box 106 is facing the discharge port 7. When the next set of recycling box 106 is full of coarse crushed material, the next set of recycling box 106 is replaced according to the above operation until the recycling box 106 containing the coarse crushed material moves to the upper end of the crushing box 2, at this time, the staff can directly clean the coarse crushed material in the recycling box 106 into the crushing box 2, realizing the coarse crushed material recycling and reprocessing, and repeating the above operation in a cycle. Compared with the prior art, there is no need to stop the machine when recycling the coarse crushed material into the crushing box 2, thereby improving the processing efficiency of waste plastic products. Secondly, by driving several sets of recycling boxes 106 to do circular motion, the coarse crushed material is automatically transported to the upper end of the crushing box 2, which not only improves the automation rate of the device, but also makes it more convenient and labor-saving for the staff to recycle the coarse crushed material.

[0026] like Figures 4 to 6As shown in the figure, the receiving frame 105 includes a bracket 1051. On both sides of the bracket 1051, two groups of chains 104 are fixedly connected respectively. Two movable seats 1052 are symmetrically and movably installed on the bracket 1051. A support shaft 1054 is rotatably installed in the movable seat 1052. One end of the support shaft 1054 is fixedly connected to the recycling box 106. Two groups of springs 1053 are symmetrically arranged on the bracket 1051. One end of the guiding frame 1055 is fixedly connected to the bracket 1051. One end of the spring 1053 is fixedly connected to the upper end of the movable seat 1052, and the other end of the spring 1053 is fixedly connected to the bracket 1051. Two groups of sliding grooves 511 are symmetrically formed on the bracket 1051. The two movable seats 1052 are respectively slidably connected to the two sliding grooves 511. An L-shaped counterweight plate 1061 is arranged at the tail end of the recycling box 106. A pulley 1062 is rotatably installed at the lower end of the L-shaped counterweight plate 1061. The guiding frame 1055 is used to guide the pulley 1062. The guiding frame 1055 is composed of a first support surface 551, a limiting plate 552, an inclined surface 553, and a second support surface 554. The other end of the support shaft 1054 is rotatably installed with a roller 521. Two groups of annular strips 1011 are symmetrically sleeved on the frame 101. A convex portion 11 for pushing the roller 521 is arranged on the annular strip 1011.

[0027] Specifically, the manual cleaning of the coarse crushed materials in the recycling box 106 into the crushing box 2 requires staff to do it manually. Since the crushing box 2 is in the rotating platform for crushing plastic products, and the recycling box 106 is at a high position, it is not convenient for the staff to clean, and the risk factor is high. During the process of the recycling box 106 moving towards the upper end of the crushing box 2, the two rollers 521 on the receiving frame 105 respectively roll along the outer circles of the two annular strips 1011. When the recycling box 106 moves to the upper end of the crushing box 2, the roller 521 rolls to the convex portion 11. As the recycling box 106 continues to move upward, the roller 521 will be squeezed by the convex portion 11, causing the roller 521 to drive the support shaft 1054 together with the recycling box 106 to move towards the crushing box 2. At the same time, the support shaft 1054 drives the movable seat 1052 to slide along the sliding groove 511, and the movable seat 1052 stretches the spring 1053. The moving recycling box 106 drives the L-shaped counterweight plate 1061 together with the pulley 1062 to move. The pulley 1062 first rolls along the first support surface 551, getting out of the limit of the limiting plate 552 on the pulley 1062. Until the pulley 1062 is pushed by the inclined surface 553, the L-shaped counterweight plate 1061 together with the recycling box 106 rotates towards the crushing box 2, so that the coarse crushed materials in the recycling box 106 are poured into the crushing box 2, realizing the automatic recycling of the coarse crushed materials into the crushing box 2. This not only further improves the automation rate of the device, but also makes it more convenient and safe for the staff to recycle the coarse crushed materials.

[0028] Embodiment 2: As Figures 7 to 9As shown in the figure, compared with the first comparative example, another embodiment of the present invention is as follows: Linkage mechanisms 9 are symmetrically arranged on both sides of the crushing box 2. The linkage mechanism 9 includes a first pulley 901, which is installed at the end of another set of crushing rollers 3. A second pulley 903 is rotatably installed on the side of the crushing box 2. The second pulley 903 and the first pulley 901 are both rotatably connected to a synchronous belt 902. The upper end of a connecting rod 904 is hinged to the second pulley 903. The screen plate 5 includes a main frame 501, which is fixedly installed in the crushing box 2. A wire mesh 502 is movably arranged in the main frame 501. Two sets of rectangular grooves 503 are opened on both sides of the main frame 501. Guide posts 504 are fixedly installed in the rectangular grooves 503. The guide posts 504 are slidably connected to sliders 505. The sliders 505 are fixedly connected to the sides of the wire mesh 502. The lower end of the connecting rod 904 is hinged to a set of sliders 505.

[0029] Specifically, during the process of the crushing roller 3 crushing plastic products, the crushed plastic products are screened by the wire mesh 502. At the same time, a set of crushing rollers 3 drives the two first pulleys 901 at both ends to rotate. The first pulley 901 drives the second pulley 903 to rotate through the synchronous belt 902. The second pulley 903 drives the connecting rod 904, and the connecting rod 904 drives the corresponding slider 505 to move up and down along the guide post 504. Then, the slider 505 drives the wire mesh 502 to shake up and down in the main frame 501, causing the crushed plastic products on the wire mesh 502 to vibrate. This not only speeds up the screening of the crushed plastic products by the screen plate 5 but also prevents the mesh holes on the wire mesh 502 from being blocked.

[0030] Working principle: The waste plastic products are thrown into the crushing box 2 from the upper port of the crushing box 2. At the same time, a first motor 8 is used to drive a corresponding set of crushing rollers 3 to rotate. The crushing rollers 3 drive another set of crushing rollers 3 to rotate through the meshing transmission of two gears 10. The two oppositely rotating crushing rollers 3 crush the waste plastic products thrown into the crushing box 2. The crushed plastic products fall onto the guide plate 4 and are guided by the guide plate 4 to fall onto the upper end of the screen plate 5. The crushed plastic products slide obliquely downward along the screen plate 5. During this process, the screen plate 5 screens the crushed plastic. The fine crushed materials will pass through the screen plate 5 and be discharged from the discharge port 7, while the coarse crushed materials slide along the screen plate 5 and fall into the recycling box 106 directly opposite the discharge port 7. When the recycling box 106 is filled with coarse crushed materials, the second motor 107 is started. The second motor 107 drives the corresponding transmission shaft 102 together with the sprocket 103 to rotate. The sprocket 103 drives the chain 104 together with several sets of receiving frames 105 and several sets of recycling boxes 106 to make a circular motion. Attached Figure 2The direction indicated by the middle arrow is the circular motion direction, which causes the recovery box 106 containing the coarse crushed materials to move upward, and the recovery box 106 begins to stagger the discharge port 7. During this process, the coarse crushed materials that slide out of the discharge port 7 will fall into the next set of recovery boxes 106 until the next set of recovery boxes 106 is facing the discharge port 7. After the next set of recovery boxes 106 is full of coarse crushed materials, the next set of recovery boxes 106 is replaced according to the above operation until the recovery box 106 containing the coarse crushed materials moves to the upper end of the crushing box 2. At this time, the staff can directly clean the coarse crushed materials in the recovery box 106 into the crushing box 2, thereby realizing the recycling and reprocessing of the coarse crushed materials, and repeating the above operation in a cycle. During the movement of the recycling box 106 toward the upper end of the crushing box 2, the two sets of rollers 521 on the receiving frame 105 roll along the outer rings of the two sets of annular strips 1011 respectively. When the recycling box 106 moves to the upper end of the crushing box 2, the rollers 521 roll to the raised portion 11. As the recycling box 106 continues to move upward, the rollers 521 are squeezed by the raised portion 11, causing the rollers 521 to drive the support shaft 1054 together with the recycling box 106 to move toward the crushing box 2. At the same time, the support shaft 1054 drives the movable seat 105 2 slides along the slide groove 511, and the movable seat 1052 stretches the spring 1053, and the moving recovery box 106 drives the L-shaped counterweight plate 1061 and the pulley 1062 to move together. The pulley 1062 first rolls along the first supporting surface 551 and breaks away from the limit of the limit plate 552 on the pulley 1062, until the pulley 1062 is pushed by the inclined surface 553, causing the L-shaped counterweight plate 1061 and the recovery box 106 to rotate toward the crushing box 2, so that the coarse crushed materials in the recovery box 106 are poured into the crushing box 2; During the crushing process of the plastic products, the crushing rollers 3 screen the crushed plastic products through the wire mesh 502. At the same time, a group of crushing rollers 3 drives the two groups of first pulleys 901 at both ends to rotate. The first pulley 901 drives the second pulley 903 to rotate through the synchronous belt 902. The second pulley 903 drives the connecting rod 904. The connecting rod 904 drives the corresponding slider 505 to move up and down along the guide column 504. Then the slider 505 drives the wire mesh 502 to swing up and down in the main frame 501, causing the crushed plastic products on the wire mesh 502 to vibrate.

[0031] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste plastic product recycling and processing device, including a recycling mechanism (1), characterized in that: On one side of the recycling mechanism (1), there is a crushing box (2). Inside the crushing box (2), two groups of mutually meshing crushing rollers (3) are rotatably installed. One end of each crushing roller (3) is equipped with a gear (10), and the two groups of gears (10) are mutually meshing. Below the crushing rollers (3), there is a feeding plate (4), and below the feeding plate (4), there is a sieve plate (5). The recycling mechanism (1) includes a frame (101), and the crushing box (2) is fixedly connected to the frame (101). Two groups of transmission shafts (102) rotatably installed inside the frame (101). Sprockets (103) are installed at both ends of the transmission shaft (102). Two groups of chains (104), and the chains (104) mesh with the two groups of sprockets (103). Several groups of recycling boxes (106) distributed around the two groups of chains (104). The recycling box (106) is fixedly installed on a receiving frame (105), and both ends of the receiving frame (105) are respectively fixedly connected to the two groups of chains (104).

2. The recycling and processing device for waste plastic products according to claim 1, wherein: At the lower end of the sieve plate (5) near the crushing box (2), there is a feeding port (6), and at the lower end of the crushing box (2), there is a discharge port (7). One group of crushing rollers (3) is driven by a first motor (8), and on one side of the upper end of the frame (101), a second motor (107) for driving one group of transmission shafts (102) is fixedly installed.

3. The recycling and processing device for waste plastic products according to claim 2, wherein: The receiving frame (105) includes: A bracket (1051), and both sides of the bracket (1051) are respectively fixedly connected to the two groups of chains (104). Two groups of movable seats (1052) symmetrically and movably installed on the bracket (1051). A support shaft (1054) rotatably installed inside the movable seat (1052), and one end of the support shaft (1054) is fixedly connected to the recycling box (106). Two groups of springs (1053) symmetrically arranged on the bracket (1051). A guiding frame (1055), and one end of the guiding frame (1055) is fixedly connected to the bracket (1051).

4. The recycling and processing device for waste plastic products according to claim 3, characterized in that: One end of the spring (1053) is fixedly connected to the upper end of the movable seat (1052), and the other end of the spring (1053) is fixedly connected to the bracket (1051).

5. The recycling and processing device for waste plastic products according to claim 4, characterized in that: Two groups of sliding grooves (511) are symmetrically opened on the bracket (1051), and the two groups of movable seats (1052) are respectively slidably connected to the two groups of sliding grooves (511).

6. The recycling and processing device for waste plastic products according to claim 5, wherein: At the tail end of the recycling box (106), there is an L-shaped counterweight plate (1061). A pulley (1062) is rotatably installed at the lower end of the L-shaped counterweight plate (1061). The guiding frame (1055) is used to guide the pulley (1062), and the guiding frame (1055) is composed of a first support surface (551), a limiting plate (552), an inclined surface (553), and a second support surface (554).

7. The recycling and processing device for waste plastic products according to claim 6, wherein: The other end of the support shaft (1054) is rotatably installed with a roller (521). Two groups of annular strips (1011) are symmetrically sleeved on the frame (101), and on the annular strips (1011), there are protruding parts (11) for pushing against the roller (521).

8. A waste plastic product recycling and processing device according to claim 7, characterized in that: Linkage mechanisms (9) are symmetrically arranged on both sides of the crushing box (2). The linkage mechanism (9) includes a first pulley (901), and the first pulley (901) is installed on the end of the other set of crushing rollers (3); A second pulley (903) is rotatably installed on the side of the crushing box (2), and the second pulley (903) and the first pulley (901) are both rotatably connected to a synchronous belt (902); A connecting rod (904), the upper end of the connecting rod (904) is hinged to the second pulley (903).

9. The recycling and processing device for waste plastic products according to claim 8, wherein: The screen plate (5) includes a main frame (501), and the main frame (501) is fixedly installed in the crushing box (2); A wire mesh (502) is movably arranged in the main frame (501).

10. A waste plastic product recycling and processing device according to claim 9, characterized in that: Two sets of rectangular grooves (503) are formed on both sides of the main frame (501), guide posts (504) are fixedly installed in the rectangular grooves (503), the guide posts (504) are slidably connected to sliders (505), the sliders (505) are fixedly connected to the side edges of the wire mesh (502), and the lower end of the connecting rod (904) is hinged to one set of the sliders (505).

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