Plastic waste recycling device

Abstract

The invention belongs to the technical field of plastic recycling, and particularly relates to a plastic waste recycling device which comprises a crushing barrel, a transmission assembly mounted at the top of the crushing barrel and a discharging pipe mounted at the bottom of the crushing barrel. The transmission assembly, the first motor, the second motor and the air cylinder are arranged, the first motor and the second motor drive the first crushing assembly and the second crushing assembly to rotate correspondingly, the air cylinder is connected with the second crushing assembly through a connecting plate, and the second crushing assembly and the filter plate cleaning assembly rotate coaxially. A lifting ring moves upwards to drive a connecting rod and a double-layer cloth net to recycle, a second crushing blade on a rotating shaft gradually gets close to a first crushing blade, and when a sliding block moves into a small ring groove, the distance between the second crushing blade and the first crushing blade is closest on the premise that the second crushing blade and the first crushing blade do not make contact; the second crushing blade and the first crushing blade rotate to smash the plastic film wrapping the second crushing blade and the first crushing blade, and the situation that the plastic film wraps the second crushing blade and the first crushing blade, and consequently the plastic crushing efficiency of the cutter is reduced is avoided.

Description

Technical Field

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

[0002] Plastic recycling is a complex, multi-step process, encompassing collection, sorting, crushing, cleaning, drying, and recycling. Together, these steps comprise the complete plastic recycling process, aiming to transform waste plastic into a reusable resource, reducing environmental pollution and resource waste.

[0003] Existing plastic recycling crushers have the following problems when in use: First, during the plastic crushing process, a filter plate is usually installed at the bottom of the crusher. Its main purpose is to separate plastic flakes that meet production requirements. During the plastic crushing process, the filter plate is prone to clogging. There are two reasons for the filter plate clogging. The first is that because a lot of plastic is put into the crusher, the crushed plastic flakes increase accordingly, causing the plastic flakes to accumulate at the bottom of the crusher and cause clogging; the second is that there are many large plastic flakes inside the crusher that do not meet the filtering specifications of the filter plate, causing the plastic flakes to clog the filter holes of the filter plate, which requires stopping the machine for cleaning; second, if soft plastic is accidentally put into the crusher, the soft plastic can easily wrap around the cutter or entangle the cutter's rotating shaft, affecting the crusher's working efficiency, and more seriously, causing damage to the crusher. Soft plastics include plastic films, plastic bags, etc. Summary of the Invention

[0004] The purpose of the present invention is to provide a plastic waste recycling device to address the shortcomings of the existing technology and solve the technical problems in the existing technology.

[0005] The object of the present invention can be achieved by the following technical solution: A plastic waste recycling device, which includes a crushing drum and a transmission assembly installed on the top of the crushing drum and a discharge pipe at the bottom; The transmission assembly includes motor 1, motor 2 and a cylinder. Motor 1 drives the first crushing assembly to rotate, and motor 2 drives the second crushing assembly to rotate. Motor 2 is in sliding cooperation with the long fixed plate, which is fixedly installed on the top of the crushing barrel. The cylinder is connected to the second crushing assembly through a connecting plate. The filter plate cleaning assembly is installed at the bottom of the crushing barrel. The second crushing assembly rotates coaxially with the filter plate cleaning assembly. The first crushing assembly includes a rotating sleeve and a crushing blade 1 installed on the rotating sleeve. The second crushing assembly includes a rotating shaft and a crushing blade 2 installed on the rotating shaft. The rotating shaft is rotatably installed in the rotating sleeve. The rotating shaft is driven vertically by the cylinder to make the crushing blade 2 on the rotating shaft gradually approach the crushing blade 1 on the rotating sleeve.

[0006] As a further optimization or improvement of this solution, the first crushing assembly also includes a compression chamber, a compression chamber is opened in the rotating sleeve, and a compressed gas assembly is installed in the compression chamber.

[0007] As a further optimization or improvement of this solution, the compressed gas assembly includes a plug ring and an air pipe. The plug ring is fixedly installed on the rotating shaft, and the air pipe is installed inside the compression chamber. The outlet of the air pipe is respectively directed toward the upper and lower ends of the crushing blade, and the inlet of the air pipe is installed in the compression chamber, and the air pipe is away from the plug ring.

[0008] As a further optimization or improvement of this solution, the filter plate cleaning assembly includes a base shaft, a transmission sleeve is installed at the bottom of the rotating shaft, the transmission sleeve is coaxially connected to the base shaft, a small ring groove and a large ring groove are respectively installed at the bottom of the crushing barrel, the small ring groove and the large ring groove are connected through a straight groove, a vertical groove is opened in the base shaft, a lifting ring is provided on the base shaft, the lifting ring is connected to the transmission sleeve, the lifting ring is connected to the slider through a connecting rod, the slider slides with the large ring groove, the small ring groove and the straight groove respectively, and a double-layer cloth net is installed on the connecting rod.

[0009] As a further optimization or improvement of this solution, a tightening motor is installed in the base shaft, a tightening roller is connected to the output shaft of the tightening motor, the double-layer cloth net is connected to the tightening roller, a force storage plate is fixedly installed on the tightening roller, and an arc plate is rotatably installed on the inner wall of the base shaft. One end of the arc plate is in contact with the double-layer cloth net, and the other end is connected to the inner wall of the base shaft through a compression spring. The force storage plate abuts the inner wall of the arc plate, and an electromagnetic suction roller is installed inside the base shaft.

[0010] As a further optimization or improvement of this solution, the bottom of the base shaft is connected to the discharge pipe.

[0011] As a further optimization or improvement of this solution, the mesh sizes of the double-layer cloth mesh are different. The mesh size of the first layer of cloth mesh is large, and both plastic sheets that meet the specifications and plastic sheets that do not meet the specifications can pass through the large mesh size; the mesh size of the other layer of cloth mesh is small, and only plastic sheets that meet the specifications can pass through the small mesh size.

[0012] As a further optimization or improvement of this solution, a short fixed plate is installed on the top of the crushing barrel, and motor 1 is fixedly installed on the short fixed plate. Motor 1 drives the first crushing assembly through a transmission gear. A slide groove is provided on the long fixed plate, and motor 2 slides with the slide groove through a lifting block.

[0013] Beneficial effects of the present invention: (1) The present invention drives the rotating shaft upward through the cylinder, and the rotating shaft drives the lifting ring upward through the transmission sleeve. The upward movement of the lifting ring drives the connecting rod and the double-layer cloth net to be recovered, so that the slider slides through the straight groove toward the small ring groove. As the rotating shaft moves upward, the crushing blade 2 on the rotating shaft gradually approaches the crushing blade 1. When the slider moves to the inside of the small ring groove, the distance between the crushing blade 2 and the crushing blade 1 is the shortest, provided that the crushing blade 2 and the crushing blade 1 do not touch each other. The cylinder is closed, and the motor 2 is started. The rotation of the crushing blade 2 and the crushing blade 1 will crush the plastic film wrapped on them, thereby preventing the plastic film from wrapping around the crushing blade 2 and the crushing blade 1, which will reduce the efficiency of the cutter in crushing the plastic.

[0014] Specifically, as the second crushing blade gradually approaches the first crushing blade, the rotating shaft drives the plug ring to move upward along the compression chamber. The plug ring compresses the gas inside the compression chamber and discharges it to the upper and lower sides of the first crushing blade through the air pipe, washing away the plastic film wrapped around the first crushing blade. As the second crushing blade approaches, the plastic film is crushed to prevent it from wrapping around the tool again.

[0015] (2) The present invention uses a cylinder to drive the rotating shaft and the transmission sleeve to move downward synchronously. The transmission sleeve drives the lifting ring downward. During the downward movement of the lifting ring, the connecting rod is driven to expand, so that the slider slides through the straight groove toward the large ring groove. At the same time, the double-layer cloth net gradually expands. When the slider reaches the large ring groove, the double-layer cloth net is completely expanded, the cylinder is turned off, and the second motor is started. The second motor drives the base shaft to rotate through the rotating shaft and the second crushing blade. At the same time, the base shaft drives the slider to slide along the large ring groove. At this time, the double-layer cloth net rotates accordingly. The double-layer cloth net stirs the bottom of the crushing cylinder, accelerating the crushed plastic pieces to pass through the filter plate at the bottom of the crushing cylinder, avoiding clogging of the filter plate.

[0016] Specifically, since the double-layer cloth net is a double-layer net setting, plastic sheets that meet the specifications can pass through two layers of nets, while plastic sheets that do not meet the specifications can only pass through one layer of net. Therefore, plastic sheets that do not meet the specifications will be clamped between the double-layer cloth nets as the base shaft rotates, thereby collecting large plastic sheets and avoiding the situation where large plastic sheets clog the filter plate at the bottom of the crushing cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the overall structure of the transmission component.

[0021] Figure 4 Schematic diagram of the internal structure of the crushing cylinder.

[0022] Figure 5 for Figure 4 A magnified view of the structure of part A.

[0023] Figure 6 for Figure 5 A magnified view of the structure of part B.

[0024] Figure 7 This is a schematic diagram of the connection structure between the second crushing component and the filter plate cleaning component.

[0025] Figure 8 Schematic diagram of the connection between the second crushing component and the filter plate cleaning component.

[0026] Figure 9 Schematic diagram of the internal structure of the base shaft.

[0027] Figure 10 for Figure 9 Schematic diagram of the C section.

[0028] The following are marked in the figure: 1. Crushing cylinder; 2. Short fixed plate; 3. Long fixed plate; 4. Transmission assembly; 401. Motor 1; 402. Transmission gear; 403. Motor 2; 404. Lifting block; 405. Connecting plate; 406. Cylinder; 407. Slide; 5. First crushing assembly; 501. Rotating sleeve; 502. Crushing blade 1; 503. Compression chamber; 6. Second crushing assembly; 601. Rotating shaft; 602. Crushing blade 2; 603. Transmission sleeve; 7. , filter plate cleaning assembly; 701, large ring groove; 702, small ring groove; 703, base shaft; 704, vertical groove; 705, lifting ring; 706, connecting rod; 707, straight groove; 708, slider; 709, double-layer cloth net; 710, tightening motor; 711, tightening roller; 712, power storage plate; 713, arc plate; 714, compression spring; 715, electromagnetic suction roller; 8, discharge pipe; 9, compressed gas assembly; 901, plug ring; 902, air pipe. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] See also Figures 1-8A plastic waste recycling device includes a crushing drum 1 and a transmission assembly 4 and a discharge pipe 8 at the bottom thereof, respectively mounted on the top of the crushing drum 1; the transmission assembly 4 includes a motor 1 401, a motor 2 403 and a cylinder 406; the motor 1 401 drives the first crushing assembly 5 to rotate, the motor 2 403 drives the second crushing assembly 6 to rotate, the motor 2 403 slides with the long fixed plate 3, the long fixed plate 3 is fixedly mounted on the top of the crushing drum 1, the cylinder 406 is connected to the second crushing assembly 6 through a connecting plate 405, and the bottom of the crushing drum 1 The filter plate cleaning assembly 7 is installed at the top, and the second crushing assembly 6 rotates coaxially with the filter plate cleaning assembly 7; the first crushing assembly 5 includes a rotating sleeve 501 and a crushing blade 1 502 installed on the rotating sleeve 501, and the second crushing assembly 6 includes a rotating shaft 601 and a crushing blade 2 602 installed on the rotating shaft 601, and the rotating shaft 601 is rotatably installed in the rotating sleeve 501; the rotating shaft 601 is driven by the cylinder 406 to move vertically, so that the crushing blade 2 602 on the rotating shaft 601 gradually approaches the crushing blade 1 502 on the rotating sleeve 501.

[0031] Specifically, the first crushing assembly 5 further includes a compression chamber 503 . The compression chamber 503 is opened in the rotating sleeve 501 , and the compressed gas assembly 9 is installed in the compression chamber 503 .

[0032] Specifically, the compressed gas assembly 9 includes a plug ring 901 and an air pipe 902. The plug ring 901 is fixedly installed on the rotating shaft 601, and the air pipe 902 is installed inside the compression chamber 503. The outlets of the air pipe 902 are respectively directed toward the upper and lower ends of the crushing blade 502, and the inlet of the air pipe 902 is installed in the compression chamber 503, and the air pipe 902 is away from the plug ring 901.

[0033] Specifically, a short fixed plate 2 is installed on the top of the crushing cylinder 1, and motor 1 401 is fixedly installed on the short fixed plate 2. Motor 1 401 drives the first crushing assembly 5 through the transmission gear 402. A slide groove 407 is provided on the long fixed plate 3, and motor 2 403 slides with the slide groove 407 through the lifting block 404.

[0034] It should be noted that a filter plate is provided at the bottom of the crushing drum 1. Since the filter plate is a prior art and has been explained in the background art, it is not shown in the accompanying drawings of this solution. This does not affect the integrity of the present invention. The connecting plate 405 is connected to the second crushing assembly 6 via a bearing.

[0035] When in use, the plastic to be crushed is put into the crushing drum 1, and the motor 1 401 and the motor 2 403 are started. The motor 1 401 and the motor 2 403 respectively drive the crushing blade 1 502 on the rotating sleeve 501 and the crushing blade 2 602 on the rotating shaft 601 to rotate, so that the rotating shaft 601 and the rotating sleeve 501 crush the plastic.

[0036] When the plastic bag or plastic film wraps the crushing blade 1 502 or the crushing blade 2 602, the motor 2 403 is turned off and the cylinder 406 is started. The cylinder 406 drives the rotating shaft 601 to move upward, and the rotating shaft 601 drives the lifting ring 705 to move upward through the transmission sleeve 603. The lifting ring 705 moves upward to drive the connecting rod 706 and the double-layer cloth net 709 to be retracted, so that the slider 708 slides toward the small ring groove 702 through the straight groove 707. As the rotating shaft 601 moves upward, the crushing blade 2 602 on the rotating shaft 601 gradually approaches the crushing blade 1 502. When the slider 708 moves to the inside of the small annular groove 702, the crushing blade 2 602 and the crushing blade 1 502 are not in contact with each other and are at the shortest distance from each other. The cylinder 406 is closed and the motor 2 403 is started. The rotation of the crushing blade 2 602 and the crushing blade 1 502 will crush the plastic film wrapped thereon, thereby preventing the plastic film from wrapping around the crushing blade 2 602 and the crushing blade 1 502, which would reduce the efficiency of the cutter in crushing the plastic.

[0037] As the second crushing blade 602 gradually approaches the first crushing blade 502, Figure 5-Figure 6 The rotating shaft 601 drives the plug ring 901 to move upward along the compression chamber 503. The plug ring 901 compresses the gas inside the compression chamber 503 and discharges it to the upper and lower sides of the crushing blade 1 502 through the air pipe 902, washing away the plastic film wrapped around the crushing blade 1 502. As the crushing blade 2 602 approaches, the plastic film is crushed to prevent it from wrapping around the tool again.

[0038] See also Figure 7-10 The filter plate cleaning assembly 7 includes a base shaft 703, a transmission sleeve 603 is installed at the bottom of the rotating shaft 601, and the transmission sleeve 603 is coaxially connected to the base shaft 703. A small annular groove 702 and a large annular groove 701 are respectively installed at the bottom of the crushing drum 1. The small annular groove 702 and the large annular groove 701 are connected through a straight groove 707. A vertical groove 704 is opened in the base shaft 703, and a lifting ring 705 is sleeved on the base shaft 703. The lifting ring 705 is connected to the transmission sleeve 603, and the lifting ring 705 is connected to the slider 708 through a connecting rod 706. The slider 708 slides with the large annular groove 701, the small annular groove 702 and the straight groove 707 respectively, and a double-layer cloth net 709 is installed on the connecting rod 706.

[0039] Specifically, a tightening motor 710 is installed in the base shaft 703, a tightening roller 711 is connected to the output shaft of the tightening motor 710, the double-layer cloth net 709 is connected to the tightening roller 711, a force storage plate 712 is fixedly installed on the tightening roller 711, and an arc plate 713 is rotatably installed on the inner wall of the base shaft 703. One end of the arc plate 713 is in contact with the double-layer cloth net 709, and the other end is connected to the inner wall of the base shaft 703 through a compression spring 714. The force storage plate 712 abuts against the inner wall of the arc plate 713, and an electromagnetic suction roller 715 is installed inside the base shaft 703.

[0040] Specifically, the bottom of the base shaft 703 is connected to the discharge pipe 8.

[0041] Specifically, the mesh size of the double-layer cloth net 709 is different. The mesh size of the first layer of cloth net is large, and both plastic sheets that meet the specifications and plastic sheets that do not meet the specifications can pass through the large mesh size; the mesh size of the other layer of cloth net is small, and only plastic sheets that meet the specifications can pass through the small mesh size.

[0042] It should be noted that a telescopic ball head is installed on the force storage plate 712 , and the telescopic ball head abuts against the protrusion on the inner side of the arc plate 713 .

[0043] It should be noted that there are two reasons for the blockage of the filter plate at the bottom of the crushing drum 1. The first is that a lot of plastic is put into the crushing drum 1, and the broken plastic pieces increase accordingly, causing the plastic pieces to accumulate at the bottom of the crushing drum 1 and cause blockage; the second is that there are many large plastic pieces inside the crushing drum 1, and the plastic pieces do not meet the filtering specifications of the filter plate, causing the plastic pieces to block the filter holes of the filter plate. This situation requires shutdown for cleaning.

[0044] If the filter plate at the bottom of the crushing drum 1 is clogged, turn off the motor 2 403, start the cylinder 406, and drive the shaft 601 downward through the cylinder 406. Figure 8 The rotating shaft 601 and the transmission sleeve 603 thereon move downward synchronously. The transmission sleeve 603 drives the lifting ring 705 downward. As the lifting ring 705 moves downward, it drives the connecting rod 706 to expand, causing the slider 708 to slide through the straight groove 707 toward the large annular groove 701. At the same time, the double-layer cloth net 709 gradually expands. When the slider 708 reaches the large annular groove 701, the double-layer cloth net 709 is completely expanded. The cylinder 406 is closed and the second motor 403 is started. The second motor 403 drives the base shaft 703 to rotate through the rotating shaft 601 and the second crushing blade 602. At the same time, the base shaft 703 drives the slider 708 to slide along the large annular groove 701. At this time, the double-layer cloth net 709 rotates accordingly. The double-layer cloth net 709 stirs the bottom of the crushing drum 1, accelerating the crushed plastic pieces to pass through the filter plate at the bottom of the crushing drum 1. Since the double-layer cloth net 709 is a double-layer net setting, plastic sheets that meet the specifications can pass through both layers of the net, while plastic sheets that do not meet the specifications can only pass through one layer of the net. Therefore, the plastic sheets that do not meet the specifications will be clamped between the double-layer cloth net 709 as the base shaft 703 rotates, thereby collecting large plastic sheets and preventing large plastic sheets from clogging the filter plate at the bottom of the crushing cylinder 1.

[0045] The implementation principle of the present invention is as follows: when in use, the plastic to be crushed is put into the crushing drum 1, and the motor 1 401 and the motor 2 403 are started. The motor 1 401 and the motor 2 403 respectively drive the crushing blade 1 502 on the rotating sleeve 501 and the crushing blade 2 602 on the rotating shaft 601 to rotate, so that the rotating shaft 601 and the rotating sleeve 501 crush the plastic.

[0046] If the filter plate at the bottom of the crushing drum 1 is clogged, turn off the motor 2 403, start the cylinder 406, and drive the shaft 601 downward through the cylinder 406. Figure 8 The rotating shaft 601 and the transmission sleeve 603 thereon move downward synchronously. The transmission sleeve 603 drives the lifting ring 705 downward. As the lifting ring 705 moves downward, it drives the connecting rod 706 to expand, causing the slider 708 to slide through the straight groove 707 toward the large annular groove 701. At the same time, the double-layer cloth net 709 gradually expands. When the slider 708 reaches the large annular groove 701, the double-layer cloth net 709 is completely expanded. The cylinder 406 is closed and the second motor 403 is started. The second motor 403 drives the base shaft 703 to rotate through the rotating shaft 601 and the second crushing blade 602. At the same time, the base shaft 703 drives the slider 708 to slide along the large annular groove 701. At this time, the double-layer cloth net 709 rotates accordingly. The double-layer cloth net 709 stirs the bottom of the crushing drum 1, accelerating the crushed plastic pieces to pass through the filter plate at the bottom of the crushing drum 1. Since the double-layer cloth net 709 is a double-layer net setting, plastic sheets that meet the specifications can pass through both layers of the net, while plastic sheets that do not meet the specifications can only pass through one layer of the net. Therefore, the plastic sheets that do not meet the specifications will be clamped between the double-layer cloth net 709 as the base shaft 703 rotates, thereby collecting large plastic sheets and preventing large plastic sheets from clogging the filter plate at the bottom of the crushing cylinder 1.

[0047] When the plastic bag or plastic film wraps the crushing blade 1 502 or the crushing blade 2 602, the motor 2 403 is turned off and the cylinder 406 is started. The cylinder 406 drives the rotating shaft 601 to move upward. The rotating shaft 601 drives the lifting ring 705 to move upward through the transmission sleeve 603. The lifting ring 705 moves upward and drives the connecting rod 706 and the double-layer cloth net 709 to retract, so that the slider 708 slides toward the small ring groove 702 through the straight groove 707. Figure 9 and Figure 10 At the same time, the tightening motor 710 is activated, which drives the winding double-layer mesh 709 via the tightening roller 711. As the tightening roller 711 rotates, it rotates synchronously with the force storage plate 712 on it. The rotation of the force storage plate 712 drives the curved plate 713 to rotate synchronously, compressing the compression spring 714. When the compression spring 714 is compressed to its limit, the force storage plate 712 disengages from the curved plate 713. The spring 714 rebounds, driving the curved plate 713 to impact the double-layer mesh 709, freeing large plastic pieces from between the double-layer mesh 709 and causing them to fall off the base shaft 703 into the discharge pipe 8, thus collecting the non-standard large plastic pieces. During this process, the electromagnetic suction roller 715 is energized, attracting any metal wires or metal pieces adhering to the double-layer mesh 709, thereby collecting the metal material.

[0048] As the rotating shaft 601 moves upward, the crushing blade 2 602 on the rotating shaft 601 gradually approaches the crushing blade 1 502. When the slider 708 moves to the inside of the small annular groove 702, the crushing blade 2 602 and the crushing blade 1 502 are not in contact with each other and are at the shortest distance from each other. The cylinder 406 is closed and the motor 2 403 is started. The rotation of the crushing blade 2 602 and the crushing blade 1 502 will crush the plastic film wrapped thereon, thereby preventing the plastic film from wrapping around the crushing blade 2 602 and the crushing blade 1 502, which would reduce the efficiency of the cutter in crushing the plastic.

[0049] See also Figure 5-Figure 6 As the crushing blade 2 602 gradually approaches the crushing blade 1 502, the rotating shaft 601 drives the plug ring 901 to move upward along the compression chamber 503. The plug ring 901 compresses the gas inside the compression chamber 503 and discharges it to the upper and lower sides of the crushing blade 1 502 through the air pipe 902, washing away the plastic film wrapped around the crushing blade 1 502. As the crushing blade 2 602 approaches, the plastic film is crushed to prevent it from wrapping around the tool again.

[0050] 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 above embodiments. The above 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, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A plastic waste recycling device, characterized by: It comprises a crushing cylinder (1), a transmission assembly (4) mounted on the top of the crushing cylinder (1), and a discharge pipe (8) mounted on the bottom thereof; The transmission assembly (4) includes a motor 1 (401), a motor 2 (403) and a cylinder (406), wherein the motor 1 (401) drives the first crushing assembly (5) to rotate, and the motor 2 (403) drives the second crushing assembly (6) to rotate, and the motor 2 (403) is in sliding cooperation with the long fixed plate (3), and the long fixed plate (3) is fixedly mounted on the top of the crushing cylinder (1), and the cylinder (406) is connected to the second crushing assembly (6) through a connecting plate (405), and a filter plate cleaning assembly (7) is mounted on the bottom of the crushing cylinder (1), and the second crushing assembly (6) and the filter plate cleaning assembly (7) rotate coaxially; The first crushing assembly (5) includes a rotating sleeve (501) and a crushing blade (502) mounted on the rotating sleeve (501). The second crushing assembly (6) includes a rotating shaft (601) and a crushing blade (602) mounted on the rotating shaft (601). The rotating shaft (601) is rotatably mounted in the rotating sleeve (501). The rotating shaft (601) is driven by the cylinder (406) to move vertically, so that the crushing blade (602) on the rotating shaft (601) gradually approaches the crushing blade (502) on the rotating sleeve (501).

2. The plastic waste recycling device according to claim 1, characterized in that: The first crushing assembly (5) further comprises a compression chamber (503), the compression chamber (503) being provided in the rotating sleeve (501), and a compressed gas assembly (9) being installed in the compression chamber (503).

3. The plastic waste recycling device according to claim 2, characterized in that: The compressed gas assembly (9) comprises a plug ring (901) and an air pipe (902). The plug ring (901) is fixedly mounted on the rotating shaft (601). The air pipe (902) is mounted inside the compression chamber (503). The outlets of the air pipe (902) are respectively directed toward the upper and lower ends of the crushing blade (502). The inlet of the air pipe (902) is located in the compression chamber (503) and is mounted away from the plug ring (901).

4. The plastic waste recycling device according to claim 1, characterized in that: The filter plate cleaning assembly (7) includes a base shaft (703), a transmission sleeve (603) installed at the bottom of the rotating shaft (601), the transmission sleeve (603) and the base shaft (703) being coaxially connected, a small annular groove (702) and a large annular groove (701) being installed at the bottom of the crushing cylinder (1), the small annular groove (702) and the large annular groove (701) being connected through a straight groove (707), a vertical groove (704) being provided in the base shaft (703), a lifting ring (705) being sleeved on the base shaft (703), the lifting ring (705) being connected to the transmission sleeve (603), the lifting ring (705) being connected to a slider (708) through a connecting rod (706), the slider (708 being slidably matched with the large annular groove (701), the small annular groove (702) and the straight groove (707), and a double-layer cloth net (709) being installed on the connecting rod (706).

5. The plastic waste recycling device according to claim 4, characterized in that: A tightening motor (710) is installed in the base shaft (703), a tightening roller (711) is connected to the output shaft of the tightening motor (710), a double-layer cloth net (709) is connected to the tightening roller (711), a force storage plate (712) is fixedly installed on the tightening roller (711), an arc plate (713) is rotatably installed on the inner wall of the base shaft (703), one end of the arc plate (713) is in contact with the double-layer cloth net (709), and the other end is connected to the inner wall of the base shaft (703) via a compression spring (714), the force storage plate (712) abuts against the inner wall of the arc plate (713), and an electromagnetic suction roller (715) is installed inside the base shaft (703).

6. The plastic waste recycling device according to claim 5, characterized in that: The bottom of the base shaft (703) is connected to the discharge pipe (8).

7. The plastic waste recycling device according to claim 6, characterized in that: The mesh apertures of the double-layer cloth net (709) are different. The mesh apertures of the first layer of cloth net are large, and both plastic sheets that meet the specifications and plastic sheets that do not meet the specifications can pass through the large mesh apertures; the mesh apertures of the other layer of cloth net are small, and only plastic sheets that meet the specifications can pass through the small mesh apertures.

8. The plastic waste recycling device according to claim 1, characterized in that: A short fixed plate (2) is installed on the top of the crushing cylinder (1), and the motor 1 (401) is fixedly installed on the short fixed plate (2). The motor 1 (401) drives the first crushing component (5) through the transmission gear (402). A slide groove (407) is provided on the long fixed plate (3), and the motor 2 (403) is slidably matched with the slide groove (407) through the lifting block (404).

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