A granulating device for agricultural plastic recycling

Abstract

This invention belongs to the field of agricultural plastic recycling technology and discloses a granulation device for agricultural plastic recycling, including a base, an extrusion mechanism on the top of the base, and a ventilation support fixedly mounted on the top of the base. This invention achieves rapid cooling and solidification of the plastic granules. Simultaneously, the continuously falling plastic granules, under the action of a continuously rotating sponge bushing, cause the falling plastic granules to quickly rotate and flip upwards, avoiding large-scale collisions and contact between the plastic granules during their fall, thus reducing adhesion problems. Through the combined action of the rotating processing component and the inner liner component, this invention optimizes the agricultural plastic recycling granulation process from multiple angles, including reducing the collision pressure of the extruded and granulated plastic granules, increasing the contact effect between the plastic granules and the airflow, and reducing the accumulation of falling plastic granules. This improves the cooling rate of the extruded and granulated plastic granules, prevents adhesion and deformation, improves molding quality, and results in good performance.

Description

Technical Field

[0001] This invention belongs to the field of agricultural plastic recycling technology, specifically a granulation device for agricultural plastic recycling. Background Technology

[0002] Agricultural plastic recycling pelletizing equipment is a device used to recycle and reuse waste agricultural plastics (such as agricultural films, drip irrigation tapes, etc.). This equipment transforms waste plastics into reusable plastic pellets through processes such as washing, crushing, melting, extrusion, and pelletizing.

[0003] Existing agricultural plastic recycling pelletizing devices typically employ a pelletizing blade and rapid cooling and solidification process. A power mechanism drives the pelletizing blade to reciprocate, cutting the extruded plastic into pellets. A lower inclined guide plate guides the plastic pellets as they roll and fall, completing the discharge process. However, this process suffers from several drawbacks. Firstly, the falling plastic pellets undergo compression and deformation upon impact. Secondly, this compression and deformation increases the contact area with the surrounding surface, reducing the sliding speed. The continuous accumulation of pellets leads to adhesion. In current pelletizing processes, severe deformation and adhesion significantly reduce pellet quality and result in poor performance. Summary of the Invention

[0004] The purpose of this invention is to provide a granulation device for agricultural plastic recycling to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a granulation device for agricultural plastic recycling, comprising a base, an extrusion mechanism on the top of the base, a ventilated support fixedly mounted on the top of the base, a rotating processing component rotatably sleeved inside the ventilated support, a power unit fixedly mounted on the top of the base, the power unit meshing with the rotating processing component, an inner liner fixedly sleeved inside the rotating processing component, the front end of the rotating processing component aligned with the front end of the extrusion mechanism, and a pelletizing component fixedly mounted on the front end of the rotating processing component.

[0006] The rotating processing assembly includes a frustum cylinder, a connecting rod, a gear, an internal cavity, a vent, and an outer annular groove. The frustum cylinder is rotatably sleeved in the vent support part. The connecting rod is fixed on the outer surface of the frustum cylinder, and the outer end of the connecting rod is fixedly connected to the gear. The frustum cylinder is frustum-shaped, and the diameter of the end of the frustum cylinder near the extrusion mechanism is smaller than the diameter of the end of the frustum cylinder away from the extrusion mechanism.

[0007] The inner lining assembly includes a sponge bushing and a reserved groove. The sponge bushing is fixedly fitted into the frustum cylinder and adapts to the structural shape of the frustum cylinder. The reserved groove is formed around the inner wall of the sponge bushing and is located near one end of the extrusion mechanism. The reserved groove is wedge-shaped.

[0008] Preferably, the extrusion mechanism includes an extruder, an extrusion tube, and a baffle. The extruder is fixed above the base, the extrusion tube is fixedly connected to the outlet end of the extruder, and the baffle is fixedly sleeved on the outside of the extrusion tube. The extruder also includes a top feed hopper, an internal spiral extrusion feeding section, and a power motor.

[0009] Preferably, the ventilation support includes a support base, a support ring, an inner ring cavity, and an air pump. The support base is fixed to the top surface of the base, the support ring is fixed to the top of the support base, the inner ring cavity is opened on the inner surface of the support ring, and the air pump is fixed to the base and its air outlet is connected to the inner ring cavity.

[0010] Preferably, the internal cavity is formed inside the frustum-shaped cylinder, the outer annular groove is formed on the outer surface of the frustum-shaped cylinder, the outer annular groove is located between the internal cavity and the inner annular cavity, and the internal cavity is connected to the inner annular cavity through the outer annular groove.

[0011] Preferably, one end of the vent is connected to the internal cavity, the vent is opened on the inner wall of the frustum cylinder, and the vents are distributed around it.

[0012] Preferably, the power unit includes a rotary motor and a second gear, the rotary motor drives the second gear to rotate, and the second gear meshes with the first gear.

[0013] Preferably, the pelletizing assembly includes a cutting blade, a mounting ring, and a blocking ring. The cutting blade is fixed to the end face of the frustum cylinder and close to the extrusion mechanism. The mounting ring is fixedly connected to the front face of the cutting blade. The blocking ring is an arc-shaped ring and is fixedly connected to the end face of the mounting ring. The blocking ring and the cutting blade are distributed vertically.

[0014] Preferably, the cutting blade is located in a semi-circle, and the mounting ring is rotatably sleeved on the outside of the extrusion tube and the baffle.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. This invention utilizes a frustum-shaped cylinder directly connected to the discharge end of the extrusion mechanism, along with a built-in, adaptably shaped inner liner assembly. The sponge bushing within the inner liner assembly catches the falling, pelletized plastic granules, buffering their falling potential energy and preventing flattening due to impact pressure. Simultaneously, surrounding wedge-shaped pre-drilled grooves separate and store some of the falling plastic granules, allowing for a secondary impact during rotation. The breathable sponge bushing further decelerates the incoming airflow, slowing it down and filling the interior of the bushing, thus circling the secondary impacted plastic granules. Air cooling allows the plastic pellets to cool and solidify rapidly. Simultaneously, the continuously falling pellets, combined with the rotating sponge bushing, cause the pellets at the bottom to quickly rotate and flip upwards, preventing extensive collisions and contact between the pellets as they fall, thus reducing adhesion. Through the combined action of the rotating processing components and the inner liner components, this process optimizes the agricultural plastic recycling pelletizing process from multiple angles: reducing the impact pressure on the extruded pellets, increasing the contact effect between the pellets and the airflow, and minimizing the accumulation of falling pellets. This improves the cooling rate of the extruded pellets, prevents adhesion and deformation, enhances molding quality, and results in superior performance.

[0017] 2. This invention assembles the pelletizing component onto the end face of the rotating processing component. While the pelletizing component surrounds the extrusion outlet, it simultaneously cuts the extruded plastic during the rotation process. Utilizing the rotational effect of a single power unit, the rotating processing component and the pelletizing component rotate synchronously. This mutual cooperation reduces material spillage at the pelletizing end, directly collecting the formed plastic pellets. While preventing material spillage at the outlet, the rotation also enhances the curing effect while cutting the plastic pellets. This significantly reduces equipment power input, reduces structural components while achieving dual-effect operation, saves assembly costs, and reduces the need for multiple power units. The actual device has high integration, good synchronous processing effect, and significant material spillage prevention.

[0018] 3. By utilizing the ventilation function of the ventilation support, the present invention, in conjunction with the power unit driving the rotating processing component and the inner liner component to rotate idling, now uniformly and effectively introduces gas into the interior of the inner liner component. With the help of the self-rotating sponge bushing, dynamic blowing and cleaning is completed under dynamic rotation, blowing out internal dust and impurities along both ends. This prevents the cut plastic particles from sticking to dust when dust accumulates inside, thus improving the final molding quality. Moreover, the self-cleaning operation is simple, the cleaning efficiency is high, no separate cleaning equipment is required, and the use effect is good. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the ventilation support part of the present invention;

[0022] Figure 4 This is an exploded view of the pelletizing assembly and the rotating processing assembly of the present invention;

[0023] Figure 5 This is a schematic diagram of the pelletizing assembly of the present invention;

[0024] Figure 6 This is a cross-sectional schematic diagram of the rotation processing component of the present invention;

[0025] Figure 7 This is a schematic diagram of the bushing assembly of the present invention;

[0026] Figure 8 This is a schematic diagram of the extrusion mechanism of the present invention.

[0027] In the diagram: 1. Base; 2. Extrusion mechanism; 21. Extruder; 22. Extrusion tube; 23. Baffle; 3. Ventilation support; 31. Support seat; 32. Support ring; 33. Inner ring cavity; 34. Air pump; 4. Rotation processing assembly; 41. Frustum cylinder; 42. Connecting rod; 43. Gear 1; 44. Internal cavity; 45. Vent; 46. Outer ring groove; 5. Liner assembly; 51. Sponge bushing; 52. Reserved groove; 6. Power unit; 7. Pelletizing assembly; 71. Cutting blade; 72. Mounting ring; 73. Blocking ring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1 to 8 As shown, this embodiment of the invention provides a pelletizing device for agricultural plastic recycling, including a base 1, an extrusion mechanism 2 on the top of the base 1, a ventilated support 3 fixedly mounted on the top of the base 1, a rotating processing assembly 4 rotatably sleeved inside the ventilated support 3, a power unit 6 fixedly mounted on the top of the base 1, the power unit 6 meshing with the rotating processing assembly 4, an inner liner assembly 5 fixedly sleeved inside the rotating processing assembly 4, the front end of the rotating processing assembly 4 aligned with the front end of the extrusion mechanism 2, and a pelletizing assembly 7 fixedly mounted on the front end of the rotating processing assembly 4.

[0030] The rotating processing assembly 4 includes a frustum cylinder 41, a connecting rod 42, a gear 43, an internal cavity 44, a vent 45, and an outer annular groove 46. The frustum cylinder 41 is rotatably sleeved in the vent support part 3. The connecting rod 42 is fixed on the outer surface of the frustum cylinder 41, and the outer end of the connecting rod 42 is fixedly connected to the gear 43. The frustum cylinder 41 is frustum-shaped, and the diameter of the end of the frustum cylinder 41 near the extrusion mechanism 2 is smaller than the diameter of the end of the frustum cylinder 41 away from the extrusion mechanism 2.

[0031] The inner liner assembly 5 includes a sponge bushing 51 and a reserved groove 52. The sponge bushing 51 is fixedly sleeved in the frustum cylinder 41 and is adapted to the structural shape of the frustum cylinder 41. The reserved groove 52 is opened around the inner wall of the sponge bushing 51. The reserved groove 52 is located near one end of the extrusion mechanism 2 and is wedge-shaped.

[0032] The extrusion mechanism 2 includes an extruder 21, an extrusion tube 22, and a baffle 23. The extruder is fixed above the base 1, the extrusion tube 22 is fixedly connected to the outlet end of the extruder 21, and the baffle 23 is fixedly sleeved on the outside of the extrusion tube 22. The extruder 21 also includes a top feed hopper, an internal spiral extrusion feeding section, and a power motor.

[0033] The extrusion mechanism 2, in conjunction with the built-in spiral extrusion feeder, completes rapid extrusion. It also works with multiple sets of extrusion tubes 22 to achieve multiple sets of extrusion and quickly complete multiple sets of pelletizing operations. The power motor provides the extrusion rotation power.

[0034] The ventilation support 3 includes a support base 31, a support ring 32, an inner ring cavity 33, and an air pump 34. The support base 31 is fixed on the top surface of the base 1, the support ring 32 is fixed on the top of the support base 31, the inner ring cavity 33 is opened on the inner surface of the support ring 32, and the air pump 34 is fixed on the base 1 and its air outlet is connected to the inner ring cavity 33.

[0035] By using the ventilation support 3 to support the rotating processing component 4 on one hand, and using the air pump 34 to maintain the continuous input of gas under rotation on the other hand, the airflow is input into the rotating processing component 4 to achieve subsequent dynamic blowing, drying and cooling curing.

[0036] The inner cavity 44 is located inside the frustum cylinder 41, and the outer annular groove 46 is located on the outer surface of the frustum cylinder 41. The outer annular groove 46 is located between the inner cavity 44 and the inner annular cavity 33. The inner cavity 44 is connected to the inner annular cavity 33 through the outer annular groove 46. One end of the vent 45 is connected to the inner cavity 44. The vent 45 is located on the inner wall of the frustum cylinder 41 and is distributed around it.

[0037] By using the outer ring groove 46 to connect the inner cavity 44 and the inner ring cavity 33, the continuous connection under rotation is maintained, which facilitates the introduction of gas into the inner cavity 44. Then, in conjunction with the vent 45, the airflow is dispersed and input into the interior of the inner liner component 5, which quickly fills the limited space with air volume. With the help of the flipped and tilted plastic granules, the air-cooled curing is completed in all aspects during the multiple throwing process, which greatly improves the cooling and curing efficiency.

[0038] The power unit 6 includes a rotating motor and a second gear. The rotating motor drives the second gear to rotate, and the second gear meshes with the first gear 43.

[0039] The gear 2 in the power unit 6 drives the gear 1 43 to rotate, so that the rotating processing component 4 and the pelletizing component rotate synchronously, completing the pelletizing operation and the discharge processing operation at the same time, reducing power input and optimizing the device structure.

[0040] The pelletizing assembly 7 includes a cutting blade 71, a mounting ring 72, and a blocking ring 73. The cutting blade 71 is fixed on the end face of the frustum cylinder 41 and close to the extrusion mechanism 2. The mounting ring 72 is fixedly connected to the front face of the cutting blade 71. The blocking ring 73 is an arc-shaped ring and is fixedly connected to the end face of the mounting ring 72. The blocking ring 73 and the cutting blade 71 are distributed vertically. The cutting blade 71 is located in a semi-circle. The mounting ring 72 is rotatably sleeved on the outside of the extrusion tube 22 and the baffle 23.

[0041] During the rotation of the semi-circular cutting blade 71, the covered part blocks the extrusion port, and the uncovered part is gradually cut off by the cutting blade 71 for pelleting and discharge. The blocking ring 73 is adapted to the port of the truncated cylinder 41 to block the uncovered part and prevent plastic pellets from falling out. It works together to complete the coating of the discharge port, reduce material falling out, and improve the pelleting effect.

[0042] Example 1: In use, as the extruder 21 of the extrusion mechanism 2 continuously melts plastic and extrudes it along the extrusion tube 22, the power unit 6 is activated, causing the rotating motor to drive the gear two to rotate, and causing the meshing gear one 43 to rotate, causing the rotating processing component 4 to rotate and drive the pelletizing component 7 at one end to rotate, causing the cutting blade 71 to rotate along the end face of multiple sets of extrusion tubes 22. As the semi-circular cutting blade 71 rotates, it cuts off the molten plastic at the outlet end of a portion of the extrusion tube 22, and the cut plastic pellets fall downwards and cool and solidify. The semi-solidified plastic pellets that fall out... The material falls into the sponge bushing 51, and the rotating frustum cylinder 41 drives the inner liner assembly 5 to rotate. The plastic granules flip up in the reserved groove 52 in the sponge bushing 51 and fall down. The air pump 34 is started, so that gas is input into the inner ring cavity 33 of the support ring 32 and input into the inner cavity 44 through the outer ring groove 46. The gas is blown out of the inner cavity 44 through the air vent 45 and blown into the plastic granules through the gap inside the sponge bushing 51. After blowing, the plastic granules inside dry and solidify quickly and roll outward along the inside of the frustum cylinder 41.

[0043] First, the frustum-shaped cylinder 41 is directly connected to the discharge end of the extrusion mechanism 2, and in conjunction with the built-in fitted inner liner assembly 5, the sponge bushing 51 in the inner liner assembly 5 receives the falling granulated plastic granules, buffering the potential energy of the fall and preventing the plastic granules from being flattened due to impact pressure when falling downwards. At the same time, the wedge-shaped pre-reserved grooves 52 distributed around the perimeter separate and store some of the falling plastic granules in the pre-reserved grooves 52, and can achieve a secondary drop upwards during rotation. With the help of the breathable sponge bushing 51, the airflow entering from the perimeter is slowed down and filled into the interior of the sponge bushing 51 after passing through the internal resistance of the sponge bushing 51, and the secondary drop of plastic granules is also affected. The granules are cooled by circulating air, which allows the plastic granules to cool and solidify rapidly. At the same time, the continuously falling plastic granules, under the action of the continuously rotating sponge bushing 51, cause the plastic granules falling from the bottom to rotate and flip to the top quickly, avoiding large-scale collisions and contact between the plastic granules as they fall, thereby reducing adhesion problems. Through the combined action of the rotating processing component and the inner liner component 5, the process optimizes the agricultural plastic recycling granulation process from multiple angles, such as reducing the collision pressure of the extruded granules, increasing the contact effect between the plastic granules and the airflow, and reducing the accumulation of falling plastic granules. This improves the cooling speed of the extruded granules, avoids adhesion and deformation, improves the molding quality, and has good practical effects.

[0044] Furthermore, by assembling the pelletizing component 7 on the end face of the rotating processing component 4, the pelletizing component 7 completes the enclosure of the extrusion discharge end while simultaneously cutting the extruded plastic during the rotation process. Utilizing the rotation effect of the single power unit 6, the rotating processing component 4 and the pelletizing component 7 rotate synchronously. On the one hand, by utilizing their cooperative effect, material drop at the pelletizing end is reduced, and the shaped plastic pellets are directly collected. While preventing drop at the discharge end, the rotation also achieves a stronger curing effect while cutting the plastic pellets. This greatly reduces the power input of the equipment, reduces structural components, and achieves dual-effect operation. It saves assembly costs and reduces the operation of installing multiple sets of power equipment. The actual device has a high degree of integration, good synchronous processing effect, and significant anti-material drop effect.

[0045] Example 2: When pre-granulation treatment is required, the power unit 6 drives the rotating processing component 4 to idle, and the air pump 34 in the ventilation support unit 3 is started simultaneously. Keeping the air pump 34 running allows the gas to be quickly introduced into the interior of the sponge bushing 51 through the inner ring cavity 33, outer ring groove 46, inner cavity 44 and vent 45. This allows the gas to be quickly blown into the interior space of the sponge bushing 51, and the internal dust and particles are quickly blown out, completing the self-cleaning before granulation.

[0046] First, by utilizing the ventilation function of the ventilation support 3 again, and in conjunction with the power unit 6 driving the rotating processing component 4 and the inner liner component 5 to rotate idling, gas is now evenly and effectively introduced into the interior of the inner liner component 5. With the self-rotating sponge bushing 51, dynamic blowing and cleaning is completed under dynamic rotation, blowing out internal dust and impurities along both ends. This prevents the cut plastic particles from sticking to dust when dust accumulates inside, improving the final molding quality. Moreover, the self-cleaning operation is simple, the cleaning efficiency is high, no separate cleaning equipment is required, and the use effect is good.

[0047] The working principle and usage process of this invention are as follows: During use, as the extruder 21 of the extrusion mechanism 2 continuously melts plastic and extrudes it along the extrusion tube 22, the power unit 6 is activated, causing the rotating motor to drive the gear 2 to rotate, and causing the meshing gear 43 to rotate, causing the rotating processing component 4 to rotate and drive the pelletizing component 7 at one end to rotate, causing the cutting blade 71 to rotate along the end faces of multiple sets of extrusion tubes 22. As the semi-circular cutting blade 71 rotates, it cuts off the molten plastic at the outlet end of a portion of the extrusion tube 22, and the cut plastic pellets fall downwards and cool and solidify. The semi-solidified plastic falls into the sponge bushing 51, and the rotating frustum cylinder 41 drives the inner liner component 5 to rotate, causing the plastic pellets to flip upwards in the reserved groove 52 in the sponge bushing 51 and fall down. At the same time, the air pump 34 is activated, allowing gas to be input. The gas is fed into the inner annular cavity 33 of the support ring 32 and then into the inner cavity 44 through the outer annular groove 46. The gas is then blown out through the vent 45 in the inner cavity 44 and blown into the plastic granules through the gap inside the sponge bushing 51, completing the blowing. The plastic granules inside are quickly dried and solidified and roll outward along the inside of the frustum cylinder 41. When pre-granulation treatment is required, the power unit 6 drives the rotating processing component 4 to idle and simultaneously starts the air pump 34 in the ventilation support unit 3. Keeping the air pump 34 running allows the gas to be quickly fed into the interior of the sponge bushing 51 through the inner annular cavity 33, the outer annular groove 46, the inner cavity 44, and the vent 45. This allows the gas to be quickly blown into the internal space of the sponge bushing 51, and the internal dust and particles are quickly cleaned and blown out, completing the pre-granulation self-cleaning process.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pelletizing device for agricultural plastic recycling, comprising a base (1), characterized in that: The top of the base (1) is provided with an extrusion mechanism (2), and the top of the base (1) is fixedly provided with a ventilation support part (3). A rotating processing assembly (4) is rotatably sleeved inside the ventilation support part (3). A power part (6) is fixedly installed on the top of the base (1). The power part (6) is meshed with the rotating processing assembly (4). An inner liner assembly (5) is fixedly sleeved inside the rotating processing assembly (4). The front end of the rotating processing assembly (4) is aligned with the front end of the extrusion mechanism (2). A pelletizing assembly (7) is fixedly provided at the front end of the rotating processing assembly (4). The rotating processing assembly (4) includes a frustum cylinder (41), a connecting rod (42), a gear (43), an internal cavity (44), a vent (45), and an outer annular groove (46). The frustum cylinder (41) is rotatably sleeved in the vent support part (3). The connecting rod (42) is fixed on the outer surface of the frustum cylinder (41), and the outer end of the connecting rod (42) is fixedly connected to the gear (43). The frustum cylinder (41) is frustum-shaped, and the diameter of the end of the frustum cylinder (41) near the extrusion mechanism (2) is smaller than the diameter of the end of the frustum cylinder (41) away from the extrusion mechanism (2). The inner lining assembly (5) includes a sponge bushing (51) and a reserved groove (52). The sponge bushing (51) is fixedly fitted into the frustum cylinder (41) and is adapted to the structural shape of the frustum cylinder (41). The reserved groove (52) is opened around the inner wall of the sponge bushing (51). The reserved groove (52) is located near one end of the extrusion mechanism (2) and is wedge-shaped.

2. The granulation device for agricultural plastic recycling according to claim 1, characterized in that: The extrusion mechanism (2) includes an extruder (21), an extrusion tube (22), and a baffle (23). The extruder is fixed above the base (1). The extrusion tube (22) is fixedly connected to the outlet end of the extruder (21). The baffle (23) is fixedly sleeved on the outside of the extrusion tube (22). The extruder (21) also includes a top feed hopper, an internal spiral extrusion feeding section, and a power motor.

3. The granulation device for agricultural plastic recycling according to claim 2, characterized in that: The ventilation support (3) includes a support base (31), a support ring (32), an inner ring cavity (33), and an air pump (34). The support base (31) is fixed on the top surface of the base (1), the support ring (32) is fixed on the top of the support base (31), the inner ring cavity (33) is opened on the inner surface of the support ring (32), and the air pump (34) is fixed on the base (1) and its air outlet is connected to the inner ring cavity (33).

4. The granulation device for agricultural plastic recycling according to claim 3, characterized in that: The inner cavity (44) is formed inside the frustum cylinder (41), and the outer ring groove (46) is formed on the outer surface of the frustum cylinder (41). The outer ring groove (46) is located between the inner cavity (44) and the inner ring cavity (33). The inner cavity (44) is connected to the inner ring cavity (33) through the outer ring groove (46).

5. The granulation device for agricultural plastic recycling according to claim 4, characterized in that: One end of the vent (45) is connected to the internal cavity (44). The vent (45) is opened on the inner wall of the frustum cylinder (41), and the vents (45) are distributed around it.

6. The granulation device for agricultural plastic recycling according to claim 5, characterized in that: The power unit (6) includes a rotating motor and a second gear. The rotating motor drives the second gear to rotate, and the second gear meshes with the first gear (43).

7. A granulation device for agricultural plastic recycling according to claim 6, characterized in that: The pelletizing assembly (7) includes a cutting blade (71), a mounting ring (72), and a blocking ring (73). The cutting blade (71) is fixed on the end face of the frustum cylinder (41) and close to the extrusion mechanism (2). The mounting ring (72) is fixedly connected to the front side of the cutting blade (71). The blocking ring (73) is an arc-shaped ring and is fixedly connected to the end face of the mounting ring (72). The blocking ring (73) and the cutting blade (71) are distributed vertically.

8. A granulation device for agricultural plastic recycling according to claim 7, characterized in that: The cutting blade (71) is semi-circular, and the mounting ring (72) is rotatably sleeved on the outside of the extrusion tube (22) and the baffle (23).

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