Flour mill for plastic processing

Abstract

The invention discloses a pulverizer for plastic processing, and relates to the technical field of plastic processing, the pulverizer comprises a pulverizing cylinder, and further comprises two supporting frames, the supporting frames are fixed to the outer surface of the pulverizing cylinder, a feeding channel is fixed to the top surface of the pulverizing cylinder, and a U-shaped guide plate is elastically arranged on one side of the feeding channel; a vibration motor is fixedly mounted on one side of the bottom surface of the U-shaped guide plate; according to the plastic part grinding device, through cooperation of the crushing assembly and the pre-crushing assembly, the function of crushing plastic parts is achieved, before crushing, through cooperation of the crushing assembly and the cleaning mechanism, the function of cleaning impurities attached to the surfaces of the plastic parts is achieved, the impurities entering the barrel are greatly reduced, and therefore the subsequent plastic grinding quality is guaranteed; and meanwhile, the operation steps of workers are reduced, the plastic machining efficiency is improved, through arrangement of an anti-blocking mechanism, the arc-shaped filter plate swings below the barrel, falling of ground plastic is facilitated, falling of large-particle plastic is blocked, and the grinding effect is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of plastic processing technology, specifically to a grinding mill for plastic processing. Background Technology

[0002] With the widespread use of plastic products, the harm of waste plastics to the environment and human health has become a serious problem that people have to face. Plastic recycling technology has become a major technical means to reduce the harm caused by waste plastics. Most plastics need to be crushed and ground during the recycling process, that is, crushed into powder to achieve plastic recycling.

[0003] In existing technologies, grinding devices are commonly used to crush plastics. A typical grinding device includes a cylinder, a motor, and a crushing rod. The plastic is then fed into the cylinder for crushing. However, the surface of the recycled plastic is prone to adhering to a lot of impurities. If it is crushed without cleaning, the crushed plastic will contain a lot of impurities, which will affect the processing quality of the plastic. Manual cleaning by workers increases the processing steps, increases the workload, and reduces the efficiency of plastic processing. Therefore, we propose a grinding mill for plastic processing. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding mill for plastic processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a grinding mill for plastic processing, comprising a grinding cylinder, and further comprising: The support frame has two supports and is fixed to the outer surface of the crushing cylinder. The top surface of the crushing cylinder is fixed with a feeding channel. A U-shaped guide plate is elastically provided on one side of the feeding channel. A vibration motor is fixedly installed on one side of the bottom surface of the U-shaped guide plate. A crushing assembly, located inside a crushing cylinder, is used for crushing plastics. A pre-crushing component is installed inside the feed channel and is used for pre-crushing of plastics; An anti-blocking mechanism is located below the crushing cylinder and is used to prevent blockage during powder feeding. The cleaning mechanism is located above the U-shaped guide plate and is used for cleaning before plastic crushing.

[0006] Preferably, the crushing assembly includes a rotating shaft rotatably connected to the inner wall of the crushing cylinder, a plurality of crushing blades are uniformly fixed on the outer surface of the rotating shaft, and a drive motor coaxially connected to the rotating shaft is fixedly installed on one side of the crushing cylinder.

[0007] Preferably, the pre-crushing component includes two drive shafts rotatably connected to the inner wall of the feed channel. A cutter is fixedly sleeved on the outer surface of the drive shaft. A first connecting shaft coaxially connected to one of the drive shafts is rotatably connected to the outer surface of the feed channel. A sprocket is fixed to one end of both the first connecting shaft and the rotating shaft. A chain is meshed with the outer surfaces of the two sprockets. A first gear is fixed to the outer surface of the first connecting shaft and the end of the other drive shaft. The two first gears mesh and drive each other.

[0008] Preferably, the anti-blocking mechanism includes: An arc-shaped support frame is fixed to the lower end of the outer surface of the crushing cylinder. An arc-shaped filter plate is slidably connected inside the arc-shaped support frame. The arc-shaped filter plate is in contact with the outer surface of the crushing cylinder and corresponds to the discharge end of the crushing cylinder. A discharge pipe is fixed to the bottom surface of the arc-shaped support frame. The device includes two movable rings that are rotatably fitted onto the outer surface of the crushing cylinder. Connecting rods are fixed on both sides of the arc-shaped filter plate, and the ends of the two connecting rods are respectively fixed to the surface of the movable rings. Movable areas are provided on both sides of the arc-shaped support frame corresponding to the connecting rods. One side of the movable ring is in contact with the outer side of the movable area. A transmission assembly is provided on the outer surface of the feeding channel.

[0009] Preferably, the driving component includes: The second connecting shaft is rotatably connected to the outer surface of the feeding channel and coaxially connected to the other end of one of the drive shafts. A connecting plate is fixed to the end of the second connecting shaft, and a rotating block is fixed to the surface of the connecting plate. A rectangular ring is movably sleeved on the outer surface of the rotating block. A limit frame is fixed to the outer surface of the feeding channel, and an L-shaped limit rod is slidably connected to the outer surface of the limit frame. The end of the L-shaped limit rod is fixed to the top surface of the rectangular ring. The external teeth are provided in multiple and are evenly fixed on the outer surface of one of the movable rings. A first rack is fixed on the outer surface of the rectangular ring, and the first rack meshes with the external teeth for transmission.

[0010] Preferably, the cleaning mechanism includes: The support block has two symmetrically distributed support blocks fixed to the top surface of the U-shaped guide plate. The top surfaces of the two support blocks are rotatably connected to a roller brush, and the top surfaces of the support blocks are fixed to a connecting block by bolts. The movable cavity is located inside the U-shaped guide plate. A brush is slidably connected to the inner wall of the movable cavity. A moving rod is fixed to one side of the brush. An adapter is fixed to the end of the moving rod. A push rod is rotatably connected between the adapter and the L-shaped limiting rod.

[0011] Preferably, the cleaning mechanism further includes: The second rack rod is fixed to one side of the adapter seat. A second gear coaxially connected to the roller brush is rotatably connected to one side of the U-shaped guide plate. The second gear meshes with the second rack rod for transmission.

[0012] Preferably, the top surface of the U-shaped guide plate is evenly provided with a plurality of material leakage holes, the bottom surface of the U-shaped guide plate is fixed with a material collection hopper corresponding to the material leakage holes, the bottom surface of the U-shaped guide plate is fixed with a material guide frame corresponding to the movable cavity, the material guide frame is connected to the material collection hopper, and the top surface of the U-shaped guide plate is fixed with a plurality of protrusions.

[0013] Preferably, a discharge pipe is fixed to the bottom surface of the hopper, and a corrugated telescopic pipe is fixed to the end of the discharge pipe.

[0014] Preferably, a baffle frame is fixed on the top surface of the feeding channel.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention achieves the function of crushing plastic parts by combining the crushing component and the pre-crushing component. Before crushing, the invention works with the cleaning mechanism to remove impurities adhering to the surface of the plastic parts, greatly reducing the amount of impurities entering the cylinder and thus ensuring the quality of subsequent plastic grinding. It also reduces the number of steps for operators and improves the processing efficiency of plastic. Furthermore, the anti-clogging mechanism allows the arc-shaped filter plate to swing below the cylinder, facilitating the fall of the ground plastic and preventing larger plastic particles from falling, thus ensuring the grinding effect.

[0016] 2. The debris and impurities cleaned up by this invention fall into the collection hopper through the leakage hole and are discharged through the discharge pipe. The discharge position can be easily adjusted by the corrugated telescopic pipe, which facilitates the discharge of impurities. During the falling process, the plastic parts are "flipped" by the protrusions, which makes it easier to remove the impurities adhering to the plastic parts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is an exploded view of a partial structure of the anti-blocking mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the present invention from another perspective; Figure 5 for Figure 4 Enlarged structural diagram at point A; Figure 6 This is a partial structural diagram of the driving component of the present invention; Figure 7 This is an exploded view of the cleaning mechanism structure of the present invention; Figure 8 for Figure 7 A magnified structural diagram at point B in the middle.

[0018] In the diagram: 1. Crushing cylinder; 2. Support frame; 3. Feed channel; 4. U-shaped guide plate; 5. Rotating shaft; 6. Crushing blade; 7. Drive shaft; 8. Cutter; 9. Sprocket; 10. Chain; 11. Arc-shaped support frame; 12. Arc-shaped filter plate; 13. Discharge pipe; 14. Movable ring; 15. Connecting rod; 16. First connecting shaft; 17. Connecting disc; 18. Rotating block; 19. Rectangular ring; 20. Limiting frame; 21. L-shaped limiting rod; 22. External tooth; 23. 24. First rack and pinion; 25. Support block; 26. Roller brush; 27. Assembly block; 28. Movable cavity; 29. ​​Plate brush; 30. Moving rod; 31. Adapter seat; 32. Push rod; 33. Second rack and pinion; 34. First gear; 35. Second gear; 36. Material leakage hole; 37. Collection hopper; 38. Guide frame; 39. Protrusion; 40. Discharge pipe; 41. Corrugated telescopic pipe; 42. Drive motor; 43. Baffle frame; 44. Second connecting shaft; 45. Vibration motor. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-8 This invention provides a technical solution: a grinding mill for plastic processing, including a grinding cylinder 1 and a support frame 2. Two support frames 2 are provided and fixed to the outer surface of the grinding cylinder 1. A feeding channel 3 is fixed on the top surface of the grinding cylinder 1. A U-shaped guide plate 4 is elastically provided on one side of the feeding channel 3. A vibration motor 44 is fixedly installed on the bottom side of the U-shaped guide plate 4. It should be noted that the U-shaped guide plate 4 is installed on one side of the feeding channel 3 by spring and bracket, and the U-shaped guide plate 4 is inclined to facilitate the falling of materials. Then, with the cooperation of the vibration motor 44, the plastic to be crushed falls in an orderly manner, so that the plastic enters the grinding cylinder 1 from the feeding channel 3 for crushing.

[0021] In this embodiment, as Figures 1-4The crushing assembly is located inside the crushing cylinder 1 and is used for crushing plastic. The crushing assembly includes a rotating shaft 5 rotatably connected to the inner wall of the crushing cylinder 1. Multiple crushing blades 6 are uniformly fixed on the outer surface of the rotating shaft 5. A drive motor 41 coaxially connected to the rotating shaft 5 is fixedly installed on one side of the crushing cylinder 1. The drive motor 41 drives the rotating shaft 5 to rotate inside the crushing cylinder 1, thereby driving the crushing blades 6 to rotate inside the cylinder, and then crushing the falling plastic, so that the device can perform grinding processing on the plastic. Furthermore, a pre-crushing assembly is disposed inside the feeding channel 3 and is used for pre-crushing treatment of plastics; the pre-crushing assembly includes two drive shafts 7 rotatably connected to the inner wall of the feeding channel 3, a cutter 8 is fixedly sleeved on the outer surface of the drive shaft 7, a first connecting shaft 16 rotatably connected to the outer surface of the feeding channel 3 and coaxially connected to one of the drive shafts 7, a sprocket 9 is fixed to one end of the first connecting shaft 16 and the rotating shaft 5, a chain 10 is connected to the outer surface of the two sprockets 9 in common meshing, and a first gear 33 is fixed to the outer surface of the first connecting shaft 16 and the end of the other drive shaft 7, and the two first gears 33 mesh for transmission; When the rotating shaft 5 rotates, it drives one of the sprockets 9 to rotate, which in turn drives another sprocket 9 to rotate via the chain 10, which in turn drives the first connecting shaft 16 to rotate, and then drives one of the drive shafts 7 to rotate within the feeding channel 3. When the first connecting shaft 16 rotates, it drives another first gear 33 to rotate via the first gear 33, which in turn drives another drive shaft 7 to rotate, and then drives the cutter 8 to rotate within the feeding channel 3. This facilitates the pre-crushing of plastic parts falling into the feeding channel 3 and improves the plastic crushing effect within the crushing cylinder 1. It should be noted that the two first gears 33, the chain 10 and the sprocket 9 are surrounded by protective frames to protect the transmission components.

[0022] In this embodiment, as Figures 1-5 An anti-blocking mechanism is installed below the crushing cylinder 1 and is used to prevent blockage during powder feeding. The anti-blocking mechanism includes an arc-shaped support frame 11, which is fixed to the lower end of the outer surface of the crushing cylinder 1. An arc-shaped filter plate 12 is slidably connected inside the arc-shaped support frame 11. The arc-shaped filter plate 12 is in contact with the outer surface of the crushing cylinder 1 and corresponds to the discharge end of the crushing cylinder 1. A discharge pipe 13 is fixed to the bottom surface of the arc-shaped support frame 11. The arc-shaped support frame 11 has an internal movable groove for the arc-shaped filter plate 12 to slide. The arc-shaped filter plate 12 does not detach from the discharge end of the crushing cylinder 1 during the sliding process inside the arc-shaped support frame 11. Two movable rings 14 are provided and rotatably sleeved on the outer surface of the crushing cylinder 1. Connecting rods 15 are fixed on both sides of the arc-shaped filter plate 12. The ends of the two connecting rods 15 are respectively fixed to the surface of the movable rings 14. The two sides of the arc-shaped support frame 11 are provided with movable areas corresponding to the connecting rods 15. One side of the movable ring 14 is in contact with the outer side of the movable area. A transmission component is provided on the outer surface of the feed channel 3. The purpose of the movable ring 14 fitting against the outside of the movable area is to seal the movable area; after the plastic parts are crushed into powder in the crushing cylinder 1, they fall from the arc-shaped filter plate 12 and are discharged from the discharge pipe 13. When the plastic is crushed into powder, it is blocked by the arc-shaped filter plate 12, so it is still crushed in the cylinder to avoid the plastics being discharged in different sizes. The anti-blocking mechanism cooperates with the drive assembly. The drive assembly includes a second connecting shaft 43, which is rotatably connected to the outer surface of the feed channel 3 and coaxially connected to the other end of one of the drive shafts 7. A connecting plate 17 is fixed to the end of the second connecting shaft 43. A rotating block 18 is fixed to the surface of the connecting plate 17. A rectangular ring 19 is movably sleeved on the outer surface of the rotating block 18. A limit frame 20 is fixed to the outer surface of the feed channel 3. An L-shaped limit rod 21 is slidably connected to the outer surface of the limit frame 20. The end of the L-shaped limit rod 21 is fixed to the top surface of the rectangular ring 19. It should be noted that the L-shaped limiting rod 21 is limited by the limiting frame 20, so that the L-shaped limiting rod 21 can only move horizontally on the limiting frame 20, thereby limiting the rectangular ring 19. External teeth 22, multiple external teeth 22 are provided and evenly fixed on the outer surface of one of the movable rings 14, and a first rack rod 23 is fixed on the outer surface of the rectangular ring 19. The first rack rod 23 meshes with the external teeth 22 for transmission. When one of the drive shafts 7 rotates, it drives the connecting disc 17 to rotate via the second connecting shaft 43, thereby driving the rotating block 18 to rotate. During the rotation of the rotating block 18, it squeezes the rectangular ring 19, thereby driving the rectangular ring 19 to move horizontally back and forth, which in turn drives the first rack rod 23 to slide horizontally back and forth. Then, the first rack rod 23 drives the movable ring 14 to rotate on the surface of the cylinder by meshing with the external teeth 22, thereby driving the arc-shaped filter plate 12 to slide within the arc-shaped support frame 11 via the connecting rod 15, so that the crushed plastic is screened on the arc-shaped filter plate 12, which avoids material blockage and improves the material feeding effect.

[0023] In this embodiment, as Figures 4-8 A cleaning mechanism is set above the U-shaped guide plate 4 and is used for cleaning before plastic crushing. The cleaning mechanism includes a support block 24. Two support blocks 24 are provided and symmetrically distributed and fixed on the top surface of the U-shaped guide plate 4. The top surfaces of the two support blocks 24 are rotatably connected to a roller brush 25. The top surfaces of the support blocks 24 are fixed with a connecting block 26 by bolts. It should be noted that the surface of the roller brush 25 is evenly covered with strip brushes, so that the roller brush 25 can be (swung) when rotating, thereby cleaning the impurities and stains attached to the surface of the plastic parts, achieving a better cleaning effect. Then, use tools to remove the bolts on the assembly 26, so that the assembly 26 is separated from the support block 24, thereby removing the roller brush 25 for cleaning. The movable cavity 27 is located inside the U-shaped guide plate 4. A brush 28 is slidably connected to the inner wall of the movable cavity 27. A moving rod 29 is fixed to one side of the brush 28, and an adapter 30 is fixed to the end of the moving rod 29. A push rod 31 is rotatably connected between the adapter 30 and the L-shaped limiting rod 21. A movable hole for the moving rod 29 to slide is opened on one side of the U-shaped guide plate 4. Both ends of the push rod 31 are rotatably set. The advantage of this setting is that, on the one hand, the L-shaped limiting rod 21 can drive the push rod 31 to push the brush 28 to slide in the movable cavity 27, and on the other hand, when the vibration motor 44 drives the U-shaped guide plate 4 to vibrate up and down with a small amplitude, the brush 28 can still be pushed to move. The cleaning mechanism also includes a second rack 32, which is fixed to one side of the adapter 30. A second gear 34, which is coaxially connected to the roller brush 25, is rotatably connected to one side of the U-shaped guide plate 4. The second gear 34 meshes with the second rack 32 for transmission. When the L-shaped limiting rod 21 moves horizontally and reciprocally, it pushes the push rod 31 to move, thereby pushing the moving rod 29 to slide in the movable hole through the adapter seat 30. This, in turn, drives the plate brush 28 to slide in the movable cavity 27. The movement of the plate brush 28 cleans the falling plastic parts. At the same time, the second rack rod 32 drives the second gear 34 to rotate, thereby driving the roller brush 25 to rotate. This allows the plastic parts passing through the plate brush 28 and the roller brush 25 to be cleaned better, improving the quality of subsequent plastic crushing.

[0024] Furthermore, such as Figure 1 , Figure 4 and Figure 7 The top surface of the U-shaped guide plate 4 is evenly provided with multiple material leakage holes 35. The bottom surface of the U-shaped guide plate 4 is fixed with a material collection hopper 36 corresponding to the material leakage holes 35. The bottom surface of the U-shaped guide plate 4 is fixed with a material guide frame 37 corresponding to the movable cavity 27. The material guide frame 37 is connected to the material collection hopper 36. The bottom surface of the material collection hopper 36 is fixed with a discharge pipe 39. The end of the discharge pipe 39 is fixed with a corrugated telescopic pipe 40. The debris and impurities that are cleaned down fall into the material collection hopper 36 through the material leakage holes 35 and are discharged through the discharge pipe 39. The corrugated telescopic pipe 40 can be used to easily adjust the discharge position, which facilitates the discharge of impurities.

[0025] It is worth noting that, such as Figure 1 , Figure 4 and Figure 7The top surface of the U-shaped guide plate 4 is fixed with multiple protrusions 38, and the top surface of the feeding channel 3 is fixed with a baffle 42. During the falling process, the plastic parts are "turned over" by the protrusions 38, which makes it easier to remove impurities adhering to the plastic parts; the baffle 42 provides shielding and protection for the feeding channel 3.

[0026] Working principle: The plastic parts to be ground are poured into the feed end of the U-shaped guide plate 4. Then, the vibration motor 44 drives the U-shaped guide plate 4 to vibrate, so that the plastic parts fall orderly along the U-shaped guide plate 4 into the feed channel 3. The drive motor 41 drives the rotating shaft 5 to rotate in the crushing cylinder 1, which in turn drives the crushing blade 6 to rotate in the cylinder, thus crushing the plastic parts. When the rotating shaft 5 rotates, it drives one of the sprockets 9 to rotate, which in turn drives another sprocket 9 to rotate via the chain 10, which in turn drives the first connecting shaft 16 to rotate, which in turn drives one of the drive shafts 7 to rotate in the feed channel 3. When the first connecting shaft 16 rotates, it drives another first gear 33 to rotate via the first gear 33, which in turn drives another drive shaft 7 to rotate, which in turn drives the cutter 8 to rotate in the feed channel 3. This facilitates the pre-crushing of the plastic parts falling into the feed channel 3, improving the crushing effect of the plastic in the crushing cylinder 1. When one of the drive shafts 7 rotates, The second connecting shaft 43 drives the connecting disc 17 to rotate, which in turn drives the rotating block 18 to rotate. During the rotation of the rotating block 18, the rectangular ring 19 is squeezed, which causes the rectangular ring 19 to move horizontally back and forth. This, in turn, causes the first rack rod 23 to slide horizontally back and forth. Then, the first rack rod 23, through meshing with the external teeth 22, drives the movable ring 14 to rotate on the surface of the cylinder. This, through the connecting rod 15, drives the arc-shaped filter plate 12 to slide within the arc-shaped support frame 11, so that the crushed plastic is screened on the arc-shaped filter plate 12 to avoid material blockage. During the feeding process of the plastic parts on the U-shaped guide plate 4, the push rod 31 pushes the moving rod 29 to slide within the movable hole through the adapter seat 30, which in turn drives the plate brush 28 to slide within the movable cavity 27. The movement of the plate brush 28 cleans the falling plastic parts. At the same time, the second rack rod 32 drives the second gear 34 to rotate, which in turn drives the roller brush 25 to rotate, so that the plastic parts passing through the plate brush 28 and the roller brush 25 can be better cleaned, improving the quality of subsequent plastic crushing.

[0027] The drive motor 41 and the vibration motor 44 can be commercially available and equipped with separate power supplies. This is a mature technology in the field and has been fully disclosed, so it will not be repeated in the specification.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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 grinding mill for plastic processing, comprising a grinding cylinder (1), characterized in that: Also includes: Support frame (2), the support frame (2) is provided in two and fixed on the outer surface of the crushing cylinder (1), the top surface of the crushing cylinder (1) is fixed with a feeding channel (3), a U-shaped guide plate (4) is elastically provided on one side of the feeding channel (3), and a vibration motor (44) is fixedly installed on one side of the bottom surface of the U-shaped guide plate (4). A crushing assembly is disposed inside the crushing cylinder (1) and is used for crushing plastics; A pre-crushing component is set inside the feed channel (3) and is used for pre-crushing of plastics; An anti-blocking mechanism is installed below the crushing cylinder (1) and is used to prevent blockage when the powder is fed. A cleaning mechanism is located above the U-shaped guide plate (4) and is used for cleaning before plastic crushing.

2. A grinding mill for plastic processing according to claim 1, characterized in that: The crushing assembly includes a rotating shaft (5) rotatably connected to the inner wall of the crushing cylinder (1). Multiple crushing blades (6) are uniformly fixed on the outer surface of the rotating shaft (5). A drive motor (41) coaxially connected to the rotating shaft (5) is fixedly installed on one side of the crushing cylinder (1).

3. A grinding mill for plastic processing according to claim 2, characterized in that: The pre-crushing assembly includes two drive shafts (7) rotatably connected to the inner wall of the feed channel (3). A cutter (8) is fixedly sleeved on the outer surface of the drive shaft (7). A first connecting shaft (16) coaxially connected to one of the drive shafts (7) is rotatably connected to the outer surface of the feed channel (3). A sprocket (9) is fixed at one end of the first connecting shaft (16) and the rotating shaft (5). A chain (10) is meshed on the outer surfaces of the two sprockets (9). A first gear (33) is fixed on the outer surface of the first connecting shaft (16) and the end of the other drive shaft (7). The two first gears (33) mesh and drive each other.

4. A grinding mill for plastic processing according to claim 3, characterized in that: The anti-blocking mechanism includes: An arc-shaped support frame (11) is fixed to the lower end of the outer surface of the crushing cylinder (1). An arc-shaped filter plate (12) is slidably connected inside the arc-shaped support frame (11). The arc-shaped filter plate (12) is in contact with the outer surface of the crushing cylinder (1). The arc-shaped filter plate (12) corresponds to the discharge end of the crushing cylinder (1). A discharge pipe (13) is fixed to the bottom surface of the arc-shaped support frame (11). Two movable rings (14) are provided and are rotatably sleeved on the outer surface of the crushing cylinder (1). Connecting rods (15) are fixed on both sides of the arc-shaped filter plate (12). The ends of the two connecting rods (15) are respectively fixed to the surface of the movable ring (14). The two sides of the arc-shaped support frame (11) are provided with movable areas corresponding to the connecting rods (15). One side of the movable ring (14) is attached to the outside of the movable area. A transmission component is provided on the outer surface of the feeding channel (3).

5. A grinding mill for plastic processing according to claim 4, characterized in that: The driving component includes: The second connecting shaft (43) is rotatably connected to the outer surface of the feed channel (3) and coaxially connected to the other end of one of the drive shafts (7). A connecting disc (17) is fixed at the end of the second connecting shaft (43). A rotating block (18) is fixed on the surface of the connecting disc (17). A rectangular ring (19) is movably sleeved on the outer surface of the rotating block (18). A limit frame (20) is fixed on the outer surface of the feed channel (3). An L-shaped limit rod (21) is slidably connected to the outer surface of the limit frame (20). The end of the L-shaped limit rod (21) is fixed to the top surface of the rectangular ring (19). External teeth (22) are provided in multiple and are evenly fixed on the outer surface of one of the movable rings (14). A first rack rod (23) is fixed on the outer surface of the rectangular ring (19). The first rack rod (23) meshes with the external teeth (22) for transmission.

6. A grinding mill for plastic processing according to claim 1, characterized in that: The cleaning facility includes: The support block (24) has two symmetrically distributed support blocks (24) fixed to the top surface of the U-shaped guide plate (4). The top surfaces of the two support blocks (24) are rotatably connected to a roller brush (25). The top surface of the support block (24) is fixed with a connecting block (26) by bolts. The movable cavity (27) is located inside the U-shaped guide plate (4). A brush (28) is slidably connected to the inner wall of the movable cavity (27). A moving rod (29) is fixed to one side of the brush (28). An adapter (30) is fixed to the end of the moving rod (29). A push rod (31) is rotatably connected between the adapter (30) and the L-shaped limiting rod (21).

7. A grinding mill for plastic processing according to claim 6, characterized in that: The cleaning facility also includes: The second rack rod (32) is fixed to one side of the adapter seat (30). The side of the U-shaped guide plate (4) is rotatably connected to the second gear (34) coaxially connected to the roller brush (25). The second gear (34) meshes with the second rack rod (32) for transmission.

8. A grinding mill for plastic processing according to claim 7, characterized in that: The top surface of the U-shaped guide plate (4) is evenly provided with multiple material leakage holes (35). The bottom surface of the U-shaped guide plate (4) is fixed with a material collection hopper (36) corresponding to the material leakage holes (35). The bottom surface of the U-shaped guide plate (4) is fixed with a material guide frame (37) corresponding to the movable cavity (27). The material guide frame (37) is connected to the material collection hopper (36). The top surface of the U-shaped guide plate (4) is fixed with multiple protrusions (38).

9. A grinding mill for plastic processing according to claim 8, characterized in that: The bottom surface of the hopper (36) is fixed with a discharge pipe (39), and the end of the discharge pipe (39) is fixed with a corrugated telescopic pipe (40).

10. A grinding mill for plastic processing according to claim 1, characterized in that: A baffle (42) is fixed on the top surface of the feeding channel (3).

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