A waste plastic recycling device for plastic processing

Abstract

This invention provides a waste plastic recycling device for plastic processing, comprising a shell, a crushing component, a conveying component, and a cleaning mechanism. After being crushed by the crushing component, the waste plastic is conveyed by the conveying component to the bottom of the cleaning chamber, thus immersing the plastic in the cleaning liquid. At this time, under the buoyancy of the cleaning liquid, the plastic enters the baffle channel through the through-holes. Simultaneously, a first motor drives the cleaning frame to rotate via a shaft, causing the plastic to enter different baffle channels, ensuring cleaning efficiency and enabling the brush plates to move and rub the plastic horizontally. At the same time, a first transmission component drives the cleaning frame to reciprocate, which not only rubs the plastic vertically but also agitates it, preventing blockage of the through-holes. By extending the time the plastic is immersed in the cleaning liquid and by rubbing it horizontally and vertically, it ensures that all surfaces of the plastic can fully contact the brush plates, eliminating cleaning dead zones and effectively improving the cleaning effect on the plastic.

Description

Technical Field

[0001] This invention relates to the field of plastic processing technology, and more specifically to a waste plastic recycling device for plastic processing. Background Technology

[0002] The plastics processing industry generates a large amount of waste plastics (such as processing scraps and substandard products). Directly discarding this waste plastic not only leads to serious resource waste but also pollutes the environment. Therefore, recycling and reusing waste plastics has become a crucial aspect of the sustainable development of the plastics processing industry, necessitating the use of waste plastic recycling equipment.

[0003] Existing waste plastic recycling devices typically involve crushing waste plastic before washing it. However, the washing structure in these devices is relatively simple, usually involving pouring the crushed plastic into a washing tank containing washing liquid and then agitating it. This method is simplistic, and because the plastic floats on the surface, simple agitation doesn't allow for sufficient contact between the plastic and the washing liquid, creating blind spots and reducing the overall cleaning effectiveness. Therefore, to address these technical problems, a waste plastic recycling device for plastic processing is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes a waste plastic recycling device for plastic processing, which improves the cleaning effect.

[0005] A waste plastic recycling device for plastic processing includes: The housing has a crushing chamber inside, a conveying chamber whose top end is connected to the bottom end of the crushing chamber, and a cleaning chamber whose bottom end is connected to the bottom end of the conveying chamber. A crushing assembly, disposed within the crushing chamber, is used to crush plastic; A conveying assembly, disposed within the conveying chamber, is used to convey the pulverized plastic to the bottom of the cleaning chamber; and The cleaning mechanism includes a rotating shaft, a first motor, a cleaning frame, and a first transmission assembly. The rotating shaft is coaxially and rotatably disposed within the cleaning chamber. The first motor is disposed at the bottom end of the housing, and its output end is coaxially connected to the rotating shaft. The cleaning frame is slidably sleeved on the rotating shaft, and has multiple sets of cleaning channels that cooperate with the inner wall of the cleaning chamber along its circumferential direction. Each of the multiple sets of cleaning channels has multiple sets of brush plates spaced apart along the axial direction of the cleaning chamber. Each of the multiple sets of brush plates has through holes along its thickness direction, and the through holes on adjacent sets of brush plates are staggered to form a baffle channel. The first transmission assembly connects the cleaning frame and the cleaning chamber and is used to drive the cleaning frame to reciprocate when the cleaning frame rotates.

[0006] In one embodiment, the crushing assembly includes a crushing roller, a first gear, and a second motor; two sets of meshing crushing rollers are rotatably arranged opposite each other in the crushing chamber, and the first gear is coaxially arranged at one end of each set of crushing rollers, the two sets of first gears meshing, and the second motor is arranged on one side of the housing, and its output end is coaxially connected to one of the sets of first gears.

[0007] In one embodiment, the material conveying assembly includes a drive roller, a conveyor belt, a feeding plate, and a third motor; the drive roller is rotatably mounted at both ends of the material conveying chamber, the conveyor belt is sleeved on two sets of drive rollers, multiple sets of feeding plates are spaced apart on the outer periphery of the conveyor belt, and the third motor is mounted on the housing, with its output end coaxially connected to one set of drive rollers.

[0008] In one embodiment, the first transmission component includes levers; multiple sets of levers are evenly spaced along the circumference of the cleaning frame, and a wave guide groove connected end to end is formed along the circumference of the cleaning chamber, with the multiple sets of levers slidably disposed within the wave guide groove.

[0009] In one embodiment, the cleaning mechanism further includes a stirring mechanism, which includes a stirring shaft, stirring rods, and a second transmission assembly. The stirring shafts are provided in multiple sets of cleaning channels, and the stirring shafts are rotatably mounted on multiple sets of brush plates in the same cleaning channel. Multiple sets of stirring rods located in the baffle channel are provided on the periphery of the multiple sets of stirring shafts along their axial and circumferential directions. The second transmission assembly connects the cleaning chamber and the multiple sets of stirring shafts, and is used to convert the rotation of the cleaning frame into the rotation of the multiple sets of stirring shafts.

[0010] In one embodiment, the second transmission assembly includes a second gear, a gear ring, and a connecting shaft; multiple sets of the second gears are rotatably arranged around the circumference of the rotating shaft, the gear ring is coaxially arranged on the bottom surface of the cleaning chamber, the gear ring meshes with the multiple sets of the second gears, the top ends of the multiple sets of the second gears are coaxially arranged with the connecting shaft, and the bottom ends of the multiple sets of the stirring shafts are respectively coaxially slidably inserted into the multiple sets of the connecting shafts.

[0011] In one embodiment, the cleaning mechanism further includes a discharge mechanism, which includes a filter plate, a third transmission assembly, and a single-pass assembly. The filter plate is arranged at an inclination and is slidably disposed within the cleaning chamber along the axial direction of the cleaning chamber, and is located above the cleaning frame. A discharge port communicating with the cleaning chamber is provided on one side of the housing. The third transmission assembly connects the rotating shaft and the filter plate, and is used to convert the rotation of the rotating shaft into the reciprocating movement of the filter plate, so that the filter plate is located below or above the water surface. When the filter plate is located above the water surface, the lower end of the filter plate can be higher than the bottom surface of the discharge port. Multiple sets of through discharge holes are provided on the filter plate along the thickness direction. The single-pass assembly is disposed on the filter plate and is provided with multiple sets corresponding to the multiple sets of discharge holes, for opening or covering the discharge holes when the filter plate is located below or above the water surface.

[0012] In one embodiment, the third transmission assembly includes a reciprocating lead screw; the reciprocating lead screw is coaxially disposed at the top end of the rotating shaft and is helically connected to the filter plate.

[0013] In one embodiment, the single-pass assembly includes a buoyancy cover plate; the buoyancy cover plate is arranged parallel to the filter plate and covers the discharge hole, and the upper end of the buoyancy cover plate is hinged to the filter plate.

[0014] The aforementioned waste plastic recycling device for plastic processing has at least the following beneficial effects: After being crushed by the crushing component, the waste plastic is conveyed to the bottom of the cleaning chamber by the conveying component, thus immersing the plastic in the cleaning solution. At this time, the plastic moves upward under the buoyancy of the cleaning solution and enters the baffle channel through the through holes. The baffle channel can extend the time that the plastic is immersed in the cleaning solution. At the same time, the first motor drives the rotating shaft to rotate the cleaning frame. The rotation of the cleaning frame facilitates the plastic to enter different baffle channels, ensuring cleaning efficiency and enabling the brush plate to move to rub the plastic horizontally. Meanwhile, the first transmission component drives the cleaning frame to move back and forth when the cleaning frame rotates. The reciprocating movement of the cleaning frame not only rubs the plastic vertically but also taps and agitates the plastic to avoid clogging of the through holes. By extending the time that the plastic is immersed in the cleaning solution and rubbing it horizontally and vertically, it is ensured that all surfaces of the plastic can fully contact the brush plate, eliminating cleaning dead corners and effectively improving the cleaning effect of the plastic. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1This is a three-dimensional structural schematic diagram of a waste plastic recycling device for plastic processing provided in an embodiment of the present invention; Figure 2 for Figure 1 The image shows a front view of a waste plastic recycling device for plastic processing after sectional cutting. Figure 3 for Figure 1 The diagram shows a three-dimensional structural schematic of the cleaning mechanism in a waste plastic recycling device for plastic processing. Figure 4 for Figure 1 An exploded view of the cleaning mechanism in a waste plastic recycling device for plastic processing is shown. Figure 5 for Figure 1 The diagram shows a partial structural diagram of the shell of a waste plastic recycling device for plastic processing after it has been cut open. Figure 6 for Figure 1 An exploded view of the stirring mechanism in a waste plastic recycling device for plastic processing is shown. Figure 7 for Figure 1 An exploded view of the discharge mechanism in a waste plastic recycling device for plastic processing is shown. Figure 8 for Figure 1 A three-dimensional structural diagram of a crushing component in a waste plastic recycling device for plastic processing is shown. Figure 9 for Figure 1 The diagram shows a three-dimensional structural schematic of a material conveying component in a waste plastic recycling device for plastic processing.

[0017] Figure label: 10. Shell; 101. Crushing chamber; 102. Conveying chamber; 103. Cleaning chamber; 104. Discharge port; 20. Rotating shaft; 201. First motor; 202. Cleaning rack; 2021. Cleaning channel; 203. Brush plate; 2031. Through hole; 2032. Baffle channel; 204. Toggle lever; 205. Wave guide groove; 30. Crushing roller; 301. First gear; 302. Second motor; 40. Drive roller; 401. Conveyor belt; 402. Feeding plate; 403. Third motor; 50. Stirring shaft; 501. Stirring rod; 502. Second gear; 503. Gear ring; 504. Connecting shaft; 60. Filter plate; 601. Discharge hole; 602. Reciprocating screw; 603. Buoyancy cover plate. Detailed Implementation

[0018] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0019] Please see Figures 1 to 4 One embodiment of a waste plastic recycling device for plastic processing includes a housing 10, a crushing assembly, a conveying assembly, and a cleaning mechanism. The housing 10 contains a crushing chamber 101, a conveying chamber 102 whose top end communicates with the bottom end of the crushing chamber 101, and a cleaning chamber 103 whose bottom end communicates with the bottom end of the conveying chamber 102. The crushing assembly is disposed within the crushing chamber 101 and is used to crush the plastic. The conveying assembly is disposed within the conveying chamber 102 and is used to transport the crushed plastic to the bottom end of the cleaning chamber 103. The cleaning mechanism includes a rotating shaft 20, a first motor 201, a cleaning frame 202, and a first transmission assembly. The rotating shaft 20 is rotatably and coaxially disposed within the cleaning chamber 103. The first motor 201 is disposed at the bottom of the housing 10, and its output end is coaxially connected to the rotating shaft 20. The cleaning frame 202 is slidably sleeved on the rotating shaft 20, and multiple sets of cleaning channels 2021 that cooperate with the inner wall of the cleaning chamber 103 are opened circumferentially on its periphery. Multiple sets of brush plates 203 are arranged at intervals along the axial direction of the cleaning chamber 103 within the multiple sets of cleaning channels 2021. Each set of brush plates 203 has through holes 2031 in the thickness direction, and the through holes 2031 on adjacent sets of brush plates 203 are staggered to form a baffle channel 2032. The first transmission assembly connects the cleaning frame 202 and the cleaning chamber 103 and is used to drive the cleaning frame 202 to reciprocate when the cleaning frame 202 rotates.

[0020] In the above embodiment, after the waste plastic is crushed by the crushing component, it is then conveyed to the bottom of the cleaning chamber 103 by the conveying component, thereby immersing the plastic in the cleaning liquid. At this time, the plastic can move upward under the buoyancy of the cleaning liquid and enter the baffle channel 2032 through the through hole 2031. The baffle channel 2032 can prolong the time that the plastic is immersed in the cleaning liquid. At the same time, the first motor 201 drives the rotating shaft 20 to rotate, causing the cleaning rack 202 to rotate. The rotation of the cleaning rack 202 facilitates the entry of the plastic into different baffle channels 2032, ensuring cleaning efficiency. Furthermore, the brush plate 203 can move to rub the plastic horizontally. At the same time, the first transmission component drives the cleaning frame 202 to reciprocate when the cleaning frame 202 rotates. The reciprocating movement of the cleaning frame 202 not only rubs the plastic vertically but also taps and agitates the plastic, preventing the through hole 2031 from becoming blocked. By extending the time the plastic is immersed in the cleaning solution and rubbing the plastic horizontally and vertically, it is ensured that all surfaces of the plastic can fully contact the brush plate 203, eliminating cleaning dead corners and effectively improving the cleaning effect on the plastic.

[0021] Specifically, in the above embodiment, the cleaning rack 202 has a connecting hole, which is fitted onto the rotating shaft 20. Two sets of first sliders are arranged opposite each other around the connecting hole, and two sets of first sliding grooves are arranged opposite each other around the rotating shaft 20. The two sets of first sliders are slidably disposed within the two sets of first sliding grooves. This ensures the stability of the sliding of the cleaning rack 202 and facilitates the rotating shaft 20 to drive the cleaning rack 202 to rotate.

[0022] Please see Figure 2 and Figure 8 In one embodiment, the crushing assembly includes a crushing roller 30, a first gear 301, and a second motor 302. Two sets of meshing crushing rollers 30 are rotatably arranged opposite each other in the crushing chamber 101. One end of each set of crushing rollers 30 is coaxially provided with a first gear 301, and the two sets of first gears 301 mesh. The second motor 302 is located on one side of the housing 10, and its output end is coaxially connected to one of the sets of first gears 301.

[0023] In the above embodiment, by starting the second motor 302, the two sets of crushing rollers 30 can be driven to rotate through the meshing transmission of the two sets of first gears 301. The meshing rotation of the two sets of crushing rollers 30 can crush the plastic, making the crushing of plastic convenient.

[0024] Please see Figure 2 and Figure 9 In one embodiment, the material conveying assembly includes a drive roller 40, a conveyor belt 401, a feeding plate 402, and a third motor 403. The material conveying chamber 102 is rotatably provided with drive rollers 40 at both ends, and the conveyor belt 401 is sleeved on the two sets of drive rollers 40. Multiple sets of feeding plates 402 are spaced apart on the outer periphery of the conveyor belt 401. The third motor 403 is provided on the housing 10, and its output end is coaxially connected to one of the sets of drive rollers 40.

[0025] In the above embodiment, after the plastic is crushed, it falls onto the conveyor belt 401 of the feeding chamber 102. The third motor 403 is started, and the third motor 403 drives a set of transmission rollers 40 connected to it to rotate. Since the two sets of transmission rollers 40 are fitted with the conveyor belt 401, the rotating transmission rollers 40 will drive the conveyor belt 401 to move. The movement of the conveyor belt 401 causes multiple sets of feeding plates 402 to move together with the conveyor belt 401, thereby forcibly pushing the plastic on the conveyor belt 401, so as to facilitate the immersion of the plastic into the cleaning solution.

[0026] Please see Figure 2 , Figure 3 and Figure 5 In one embodiment, the first transmission component includes levers 204; multiple sets of levers 204 are evenly spaced along the circumference of the cleaning rack 202, and a wave guide groove 205 connected end to end is opened along the circumference of the cleaning chamber 103, and the multiple sets of levers 204 are slidably disposed in the wave guide groove 205.

[0027] In the above embodiment, when the cleaning rack 202 rotates, multiple sets of levers 204 on the periphery of the cleaning rack 202 rotate together with the cleaning rack 202. Since the levers 204 are slidably disposed in the wave guide groove 205 on the periphery of the cleaning chamber 103, when the levers 204 slide along the wave guide groove 205, the undulating structure of the wave guide groove 205 will generate an axial force on the levers 204, thereby driving the cleaning rack 202 to move back and forth along the rotating shaft 20. Its structure is simple and it is convenient to drive the cleaning rack 202 to move back and forth axially. At the same time, the levers 204 are evenly spaced along the periphery of the cleaning rack 202 and are all slidably disposed in the wave guide groove 205, ensuring that the cleaning rack 202 is subjected to uniform force and moves smoothly when it moves back and forth, avoiding jamming or deviation.

[0028] Please see Figure 2 , Figure 3 and Figure 6 In one embodiment, the cleaning mechanism further includes a stirring mechanism, which includes a stirring shaft 50, a stirring rod 501, and a second transmission assembly. A stirring shaft 50 is provided in each of the multiple sets of cleaning channels 2021, and the stirring shaft 50 is rotatably mounted on multiple sets of brush plates 203 in the same cleaning channel 2021. Multiple sets of stirring rods 501 located in the baffle channel 2032 are provided along the axial and circumferential directions of the multiple sets of stirring shafts 50. The second transmission assembly connects the cleaning chamber 103 and the multiple sets of stirring shafts 50, and is used to convert the rotation of the cleaning frame 202 into the rotation of the multiple sets of stirring shafts 50.

[0029] In the above embodiment, when the cleaning rack 202 rotates, the second transmission component converts the rotation of the cleaning rack 202 into the rotation of multiple sets of stirring shafts 50. The rotation of the stirring shafts 50 can drive multiple sets of stirring rods 501 to rotate in the baffle channel 2032. By stirring the plastic in the baffle channel 2032, the contact effect between the plastic and the brush plate 203 can be further improved, thereby further improving the cleaning effect. It can also play a pushing role on the plastic to prevent the plastic from getting stuck in the baffle channel 2032.

[0030] Please see Figure 2 , Figure 3 and Figure 6 In one embodiment, the second transmission assembly includes a second gear 502, a gear ring 503, and a connecting shaft 504; multiple sets of second gears 502 are rotatably arranged around the circumference of the rotating shaft 20, a gear ring 503 is coaxially arranged on the bottom surface of the cleaning chamber 103, the gear ring 503 meshes with the multiple sets of second gears 502, the top ends of the multiple sets of second gears 502 are coaxially arranged with connecting shafts 504, and the bottom ends of the multiple sets of stirring shafts 50 are respectively coaxially slidably inserted into the multiple sets of connecting shafts 504.

[0031] In the above embodiment, when the rotating shaft 20 rotates, it will drive multiple sets of second gears 502 around the rotating shaft 20 to revolve. Since the bottom surface of the cleaning chamber 103 is coaxially provided with a toothed ring 503, and the second gear 502 meshes with the toothed ring 503, the second gear 502 will be subjected to the meshing force of the toothed ring 503 during the revolution, thereby causing the second gear 502 to rotate. It will then drive the stirring shaft 50 to rotate through the connecting shaft 504. Driving the stirring shaft 50 to rotate is convenient and does not require additional power equipment. At the same time, the stirring shaft 50 can slide along the axial direction of the connecting shaft 504 with the cleaning frame 202, without affecting the reciprocating movement of the cleaning frame 202.

[0032] Specifically, in the above embodiment, two sets of second sliders are arranged opposite each other in the inner hole of the connecting shaft 504, and two sets of second sliding grooves are opened opposite each other on the periphery of the stirring shaft 50. The two sets of second sliding grooves are slidably fitted onto the two sets of second sliders. This ensures the stability of the sliding of the stirring shaft 50 and facilitates the connecting shaft 504 to drive the stirring shaft 50 to rotate.

[0033] Please see Figure 2 and Figure 7 In one embodiment, the cleaning mechanism further includes a discharge mechanism, which includes a filter plate 60, a third transmission component, and a single-pass component. The filter plate 60 is arranged at an inclination and is slidably disposed in the cleaning chamber 103 along the axial direction of the cleaning chamber 103 and located above the cleaning frame 202. A discharge port 104 communicating with the cleaning chamber 103 is provided on one side of the housing 10. The third transmission component connects the rotating shaft 20 and the filter plate 60 and is used to convert the rotation of the rotating shaft 20 into the reciprocating movement of the filter plate 60 so that the filter plate 60 is located below or above the water surface. When the filter plate 60 is located above the water surface, the lower end of the filter plate 60 can be higher than the bottom surface of the discharge port 104. Multiple sets of through discharge holes 601 are provided on the filter plate 60 along the thickness direction. The single-pass component is disposed on the filter plate 60 and multiple sets are provided corresponding to the multiple sets of discharge holes 601. It is used to open or cover the discharge holes 601 when the filter plate 60 is located below or above the water surface.

[0034] In the above embodiment, when the rotating shaft 20 rotates, the third transmission component converts the rotation of the rotating shaft 20 into the reciprocating movement of the filter plate 60. When the filter plate 60 moves downward to below the water surface, the single-pass component opens the discharge hole 601. At this time, the plastic can float on the water surface through the discharge hole 601 and is located above the filter plate 60. When the filter plate 60 moves upward to the water surface, the single-pass component blocks the discharge hole 601. At this time, the filter plate 60 can drive the plastic to move upward and separate from the water. When the lower end of the filter plate 60 is higher than the bottom surface of the discharge port 104, the plastic slides down into the discharge port 104 under the tilting guidance of the filter plate 60, thereby completing the automatic discharge without manual intervention, reducing the labor intensity of workers and improving the continuity of the cleaning operation of the device.

[0035] Specifically, in the above embodiment, two sets of third sliders are arranged opposite each other on the periphery of the filter plate 60, and two sets of third sliding grooves are opened opposite each other on the inner wall of the cleaning chamber 103. The two sets of third sliders are slidably disposed in the two sets of third sliding grooves to ensure the stability of the sliding of the filter plate 60.

[0036] Please see Figure 2 and Figure 7 In one embodiment, the third transmission component includes a reciprocating lead screw 602; the reciprocating lead screw 602 is coaxially disposed at the top end of the rotating shaft 20 and is helically connected to the filter plate 60.

[0037] In the above embodiment, the rotation of the rotating shaft 20 drives the reciprocating screw 602 to rotate. The rotation of the reciprocating screw 602 cooperates with the screw drive of the filter plate 60 to drive the filter plate 60 to move back and forth. Driving the filter plate 60 to move back and forth is convenient and does not require additional power equipment, thus reducing the cost of using the device.

[0038] Please see Figure 2 and Figure 7 In one embodiment, the single-pass component includes a buoyancy cover plate 603; the buoyancy cover plate 603 is arranged parallel to the filter plate 60 and covers the discharge hole 601, and the high end of the buoyancy cover plate 603 is hinged to the filter plate 60.

[0039] In the above embodiment, when the filter plate 60 is below the water surface, the buoyancy cover 603 is buoyed by the cleaning fluid, rotates around the hinge point and opens, opening the discharge hole 601 and ensuring that the plastic passes through the discharge hole 601 and remains above the filter plate 60. When the filter plate 60 rises to the water surface, the buoyancy cover 603 detaches from the cleaning fluid, the buoyancy disappears, and under its own weight, rotates in the opposite direction around the hinge point and closes, blocking the discharge hole 601 and preventing the plastic on the filter plate 60 from falling out of the discharge hole 601. Automatic opening and closing is achieved using buoyancy, requiring no additional driving components, resulting in a simple structure and reduced device operating costs. It is understood that the rotation stroke of the buoyancy cover 603 is limited to prevent excessive rotation, which could prevent the discharge hole 601 from being blocked when the filter plate 60 is above the water surface.

[0040] The specific implementation method of the above-mentioned waste plastic recycling device for plastic processing is as follows: By placing waste plastic into the crushing chamber 101, the second motor 302 is started, which drives two sets of crushing rollers 30 to rotate through the meshing transmission of two sets of first gears 301. The meshing rotation of the two sets of crushing rollers 30 can crush the plastic. The crushed plastic falls onto the conveyor belt 401. Then, the third motor 403 is started, which drives a set of transmission rollers 40 connected to it to rotate, so as to move the conveyor belt 401. The movement of the conveyor belt 401 causes multiple sets of feeding plates 402 to move together with the conveyor belt 401, thereby forcibly pushing the plastic on the conveyor belt 401 into the cleaning chamber 103 and immersing it in the cleaning liquid.

[0041] Once the plastic enters the bottom of the cleaning chamber 103, it moves upward under the buoyancy of the cleaning fluid and enters the baffle channel 2032 through the through hole 2031. The baffle channel 2032 extends the time the plastic is immersed in the cleaning fluid. Simultaneously, the first motor 201 drives the rotating shaft 20 to rotate, causing the cleaning frame 202 to rotate. The rotation of the cleaning frame 202 facilitates the entry of the plastic into different baffle channels 2032, ensuring cleaning efficiency and allowing the brush plate 203 to move and perform horizontal scrubbing on the plastic. At the same time, multiple sets of levers 204 around the cleaning frame 202 rotate together with the cleaning frame 202. Multiple levers 204 rotate and slide along the wave guide groove 205. At this time, the undulating structure of the wave guide groove 205 will generate an axial force on the levers 204, thereby driving the cleaning rack 202 to move back and forth along the rotating shaft 20. The reciprocating movement of the cleaning rack 202 not only rubs the plastic vertically but also pats and agitates the plastic to avoid clogging the through hole 2031. By extending the time the plastic is immersed in the cleaning solution and rubbing the plastic horizontally and vertically, it is ensured that all surfaces of the plastic can fully contact the brush plate 203, eliminating cleaning dead corners and effectively improving the cleaning effect on the plastic.

[0042] On the other hand, when the rotating shaft 20 rotates, it will drive multiple sets of second gears 502 around the rotating shaft 20 to revolve. The second gears 502 revolve and mesh with the gear ring 503, causing the second gears 502 to rotate. This rotation, in turn, drives the stirring shaft 50 to rotate via the connecting shaft 504. The rotation of the stirring shaft 50 will drive multiple sets of stirring rods 501 to rotate within the baffle channel 2032. By stirring the plastic within the baffle channel 2032, the contact effect between the plastic and the brush plate 203 can be further improved, thereby further improving the cleaning effect. It can also act as a prying tool for the plastic, preventing the plastic from getting stuck in the baffle channel 2032.

[0043] Finally, when the plastic floats to the surface after washing, the rotating shaft 20 drives the reciprocating screw 602 to rotate. The rotation of the reciprocating screw 602, in conjunction with the screw drive of the filter plate 60, drives the filter plate 60 to move back and forth. When the filter plate 60 moves downward to below the water surface, the buoyancy cover 603, under the buoyancy of the washing liquid, rotates around the hinge point and opens, opening the discharge hole 601. At this time, the plastic can float on the water surface through the discharge hole 601 and is located above the filter plate 60. When the filter plate 60 moves upward to the water surface, the buoyancy cover... When plate 603 is removed from the cleaning fluid, its buoyancy disappears. Under its own gravity, it rotates in the opposite direction around the hinge point and closes, blocking the discharge hole 601 and preventing the plastic on the filter plate 60 from falling out of the discharge hole 601. At this time, the filter plate 60 can move the plastic upward to separate it from the water. When the lower end of the filter plate 60 is higher than the bottom surface of the discharge port 104, the plastic slides down into the discharge port 104 under the tilting guidance of the filter plate 60, thus completing the automatic discharge without manual intervention, reducing the labor intensity of workers and improving the continuity of the cleaning operation of the device.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A waste plastic recycling device for plastic processing, characterized in that, include: The housing (10) has a crushing chamber (101), a conveying chamber (102) whose top end is connected to the bottom end of the crushing chamber (101), and a cleaning chamber (103) whose bottom end is connected to the bottom end of the conveying chamber (102). A crushing assembly, disposed within the crushing chamber (101), is used to crush plastic; A conveying assembly, disposed within the conveying chamber (102), is used to convey the pulverized plastic to the bottom end of the cleaning chamber (103); and The cleaning mechanism includes a rotating shaft (20), a first motor (201), a cleaning frame (202), and a first transmission assembly. The rotating shaft (20) is rotatably and coaxially disposed within the cleaning chamber (103). The first motor (201) is disposed at the bottom end of the housing (10), and its output end is coaxially connected to the rotating shaft (20). The cleaning frame (202) is slidably sleeved on the rotating shaft (20), and has multiple sets of cleaning channels (2021) circumferentially formed along its periphery that cooperate with the inner wall of the cleaning chamber (103). Multiple sets of brush plates (203) are arranged at intervals along the axial direction of the cleaning chamber (103) in the channel (2021). Each set of brush plates (203) has through holes (2031) along the thickness direction. The through holes (2031) on two adjacent sets of brush plates (203) are staggered to form a baffle channel (2032). The first transmission component connects the cleaning frame (202) and the cleaning chamber (103) and is used to drive the cleaning frame (202) to reciprocate when the cleaning frame (202) rotates.

2. The waste plastic recycling device for plastic processing according to claim 1, characterized in that, The crushing assembly includes a crushing roller (30), a first gear (301), and a second motor (302); two sets of meshing crushing rollers (30) are rotatably arranged opposite each other in the crushing chamber (101), and the first gear (301) is coaxially arranged at one end of each set of crushing rollers (30). The two sets of first gears (301) mesh. The second motor (302) is arranged on one side of the housing (10), and its output end is coaxially connected to one of the sets of first gears (301).

3. The waste plastic recycling device for plastic processing according to claim 1, characterized in that, The material conveying assembly includes a drive roller (40), a conveyor belt (401), a feeding plate (402), and a third motor (403). The drive roller (40) is rotatably mounted at both ends of the material conveying chamber (102). The conveyor belt (401) is sleeved on two sets of drive rollers (40). Multiple sets of feeding plates (402) are spaced apart on the outer periphery of the conveyor belt (401). The third motor (403) is mounted on the housing (10), and its output end is coaxially connected to one set of drive rollers (40).

4. The waste plastic recycling device for plastic processing according to claim 1, characterized in that, The first transmission component includes levers (204); multiple sets of levers (204) are evenly spaced along the circumference of the cleaning rack (202), and wave guide grooves (205) connected end to end are opened along the circumference of the cleaning chamber (103), and multiple sets of levers (204) are slidably disposed in the wave guide grooves (205).

5. A waste plastic recycling device for plastic processing according to claim 1, characterized in that, The cleaning mechanism also includes a stirring mechanism, which includes a stirring shaft (50), a stirring rod (501), and a second transmission assembly. The stirring shaft (50) is provided in each of the multiple sets of cleaning channels (2021), and the stirring shaft (50) is rotatably arranged on multiple sets of brush plates (203) in the same cleaning channel (2021). Multiple sets of stirring rods (501) located in the baffle channel (2032) are provided on the periphery of the multiple sets of stirring shafts (50) along their axial and circumferential directions. The second transmission assembly connects the cleaning chamber (103) and the multiple sets of stirring shafts (50) to convert the rotation of the cleaning frame (202) into the rotation of the multiple sets of stirring shafts (50).

6. A waste plastic recycling device for plastic processing according to claim 5, characterized in that, The second transmission assembly includes a second gear (502), a gear ring (503), and a connecting shaft (504); multiple sets of the second gears (502) are rotatably arranged around the circumference of the rotating shaft (20), the gear ring (503) is coaxially arranged on the bottom surface of the cleaning chamber (103), the gear ring (503) meshes with the multiple sets of the second gears (502), the top ends of the multiple sets of the second gears (502) are coaxially arranged with the connecting shaft (504), and the bottom ends of the multiple sets of stirring shafts (50) are respectively coaxially slidably inserted into the multiple sets of the connecting shafts (504).

7. A waste plastic recycling device for plastic processing according to claim 1, characterized in that, The cleaning mechanism also includes a discharge mechanism, which includes a filter plate (60), a third transmission assembly, and a single-pass assembly. The filter plate (60) is arranged at an inclination and is slidably disposed in the cleaning chamber (103) along the axial direction and located above the cleaning frame (202). A discharge port (104) communicating with the cleaning chamber (103) is provided on one side of the housing (10). The third transmission assembly connects the rotating shaft (20) and the filter plate (60) and is used to convert the rotation of the rotating shaft (20) into the rotation of the filter plate. The filter plate (60) is moved back and forth so that it is located below or above the water surface. When the filter plate (60) is located above the water surface, the lower end of the filter plate (60) can be higher than the bottom surface of the discharge port (104). Multiple sets of through discharge holes (601) are opened on the filter plate (60) along the thickness direction. The single-pass component is arranged on the filter plate (60) and multiple sets are arranged corresponding to the multiple sets of discharge holes (601) for opening or covering the discharge holes (601) when the filter plate (60) is located below or above the water surface.

8. A waste plastic recycling device for plastic processing according to claim 7, characterized in that, The third transmission component includes a reciprocating lead screw (602); the reciprocating lead screw (602) is coaxially disposed at the top of the rotating shaft (20) and is helically connected to the filter plate (60).

9. A waste plastic recycling device for plastic processing according to claim 7, characterized in that, The single-pass assembly includes a buoyancy cover plate (603); the buoyancy cover plate (603) is arranged parallel to the filter plate (60) and covers the discharge hole (601), and the high end of the buoyancy cover plate (603) is hinged to the filter plate (60).

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