Plastic crushing recycling device

Abstract

The application belongs to the technical field of plastic recycling, and particularly relates to a plastic crushing and recycling device, which comprises a body, the inner part of the upper surface of the body is symmetrically provided with rotating rods, the surfaces of the two rotating rods are fixedly connected with crushing teeth, the crushing teeth are arranged in interlocking mode, the inner part of the rotating rod is fixedly connected with a fixing frame, the inner part of the fixing frame is slidably connected with a stop block, one side of the stop block is provided with a through hole, one side of the rotating rod is provided with a supporting plate, the supporting plate is fixedly connected in the inner part of the body, the surface of the supporting plate is fixedly connected with a filter plate, one side of the filter plate is provided with a discharging frame, the discharging frame and the supporting plate are fixedly connected, one side of the discharging frame is fixedly connected with a circulating box, the device can put the incompletely crushed plastics into the device again, the design realizes full-automatic circulating treatment, the stop block and the crushing teeth are combined and rotated, the unqualified plastics retained on the filter plate can be cleaned in real time, and the plastics can be prevented from being accumulated and clogging the screen holes.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of plastic recycling, and particularly relates to a plastic crushing and recycling device. BACKGROUND

[0002] Plastics are difficult to degrade in the natural environment, and crushing and recycling can reduce the occupation of landfills, and the crushed plastic particles are easier to transport and store, or the recycling efficiency is improved, and the pollution of plastic waste to the environment is reduced.

[0003] When the existing double-roller plastic crusher is used to crush plastics, part of the crushed plastics is not fully crushed and is discharged together with fully crushed waste, and the discharge is simultaneously subjected to screening operation by a filter plate, and after the screening is completed, the substandard waste needs to be manually poured into the crushing device for repeated crushing until the waste is fully crushed to a proper size.

[0004] The above-mentioned existing plastic crushing and recycling machine does not have a circulating crushing structure, and the manual pouring of substandard waste into the crushing device for repeated crushing operation is relatively cumbersome, which leads to an increase in crushing time and thus causes a decrease in crushing efficiency.

[0005] Therefore, the application provides a plastic crushing and recycling device. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical scheme adopted by the application to solve the technical problems is that the plastic crushing and recycling device comprises a body, the upper surface of the body is symmetrically provided with rotating rods inside, the surfaces of the two rotating rods are fixedly connected with crushing teeth, the crushing teeth are arranged in an interlocking manner, the rotating rods are fixedly connected with fixing frames inside, the fixing frames are slidingly connected with stop blocks inside, the stop blocks are provided with through holes on one side, the rotating rods are provided with supporting plates on one side, the supporting plates are fixedly connected inside the body, the surfaces of the supporting plates are fixedly connected with filter plates, the filter plates are provided with discharge racks on one side, the discharge racks and the supporting plates are fixedly connected, the discharge racks are fixedly connected with circulating boxes on one side, the circulating boxes are fixedly connected to the lower surface of the body, the circulating boxes are fixedly connected with circulating pipes between one side and the feeding port of the body, and one side of the body is provided with a feeding assembly.

[0008] Preferably, the body is fixedly connected with a motor on one side, the output end of the motor and one end of the rotating rod are fixedly connected with pulleys, the two pulleys are drivingly connected through a belt, one end of the rotating rod is fixedly connected with a driving gear, and the two driving gears are in mesh with each other.

[0009] Preferably, the feeding assembly comprises a Roots blower assembly, and the output end of the Roots blower assembly is fixedly connected with a first exhaust pipe.

[0010] Preferably, one end of the stopper is fixedly connected with a magnetic rod, a first spring is fixedly connected between the magnetic rod and the fixed frame, and one end of the magnetic rod is rotatably connected with a second roller.

[0011] Preferably, the inner side of the rotating rod is provided with a fixed rod, the fixed rod is fixedly connected with the outer wall of the body, the surface of the fixed rod is fixedly connected with a fixed disc, the inner side of the fixed disc is provided with a positioning groove, and the inner wall of the positioning groove is slidably connected with the surface of the second roller.

[0012] Preferably, the positioning groove comprises a crushing section, one side of the crushing section is provided with a filtering section, one side of the filtering section is provided with a cleaning section, one side of the cleaning section is provided with a discharging section, one side of the discharging section is provided with a resetting section, the inner side of the fixed disc is fixedly connected with an electromagnet, and the magnetism of the electromagnet after being electrified and the magnetism of the magnetic rod repel each other.

[0013] Preferably, a convex block is arranged between the filtering plate and the discharging frame, and the convex block is fixedly connected with the upper surface of the supporting plate.

[0014] Preferably, the inner side of the fixed frame is slidably connected with a moving plate, a first spring is fixedly connected between the moving plate and the fixed frame, the inner side of the moving plate is provided with a limiting groove, the inner side of the stopper is rotatably connected with a first roller, the surface of the first roller is slidably connected with the inner wall of the limiting groove, and the limiting groove comprises a vertical section and an inclined section.

[0015] Preferably, the inner side of the moving plate is slidably connected with a first rack, the inner side of the stopper is rotatably connected with a first gear, the inner side of the stopper is slidably connected with a second rack, the second rack and the first rack are meshed with the first gear, one end of the second rack is fixedly connected with a pressing rod, and the size of the pressing rod is matched with that of the through hole.

[0016] Preferably, the surface of the fixed rod is provided with a plurality of exhaust openings, one end of the fixed rod is fixedly connected with an exhaust frame, and one end of the exhaust frame is fixedly connected with one end of the first exhaust pipe.

[0017] The present application has the following beneficial effects:

[0018] 1. The plastic crushing and recycling device, by setting the block and crushing teeth, when the plastic is meshed and crushed by the two rotating rods driving the crushing teeth, the crushed plastic falls on the supporting plate, the plastic products with qualified crushing size fall into the collecting box through the filter plate, and the plastic products with unqualified crushing size fall on the filter plate, then the block slides by driving the block, the upper surface of the block and the filter plate is attached, and the two sides of the crushing teeth are attached at the same time, so that the block and the crushing teeth form a push plate, and the rotating rod drives the block and the crushing teeth to rotate, so that the plastic pieces on the filter plate that are not completely crushed can be pushed to the discharge rack and fall into the circulating box, then the Roots blower assembly is opened, and the plastic in the circulating box can be sent to the feed inlet of the body again for recycling crushing, the device can re-feed the plastic that is not completely crushed, the design realizes automatic recycling processing, the block and the crushing teeth are attached and rotated, the unqualified plastic retained on the filter plate can be cleaned in real time, and the filter hole is prevented from being blocked by the accumulation.

[0019] 2. The plastic crushing and recycling device, by setting the through hole, when the inner upper surface of the block and the supporting plate is attached, the block inside can be air supplied, the through hole can exhaust the airflow and blow the plastic on the filter plate, the through hole is inclined, so as to form a combined airflow of inclined downward pressure and horizontal pushing, the airflow blows the plastic between the baffle and the crushing teeth, so that the plastic can be turned over, the completely crushed plastic can be blown to the filter plate and filtered through the filter plate, the device sprays the combined airflow of inclined downward pressure + horizontal pushing through the through hole, the qualified particles that are pressed on the bottom layer and cannot contact the filter hole are instantly turned up, so that they pass through the filter plate again, the plastic that is not completely crushed covers the filter hole, so that the completely crushed plastic is difficult to pass through the filter hole, and the problem of low plastic crushing efficiency is avoided.

[0020] 3. The plastic crushing and recycling device, by setting the extrusion rod and the protrusion, when the block moves to the protrusion, the protrusion extrudes the block, so that the block drives the first roller to slide, the first roller slides in the inclined section of the limiting groove, so that the moving plate drives the first rack to slide, the first rack and the first gear are engaged, the first gear and the second rack are engaged, so that the second rack slides, the second rack drives the extrusion rod to slide synchronously, and the extrusion rod moves to the inside of the through hole, so as to clean the plastic blocked in the inner wall of the through hole. The device can automatically clean the through hole, avoid the plastic entering the through hole and blocking the through hole, cause difficulty in turning over, so that the completely crushed plastic is covered and difficult to pass through the filter hole for collection, and the problem of low plastic crushing efficiency is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application will be further described below with reference to the drawings.

[0022] Figure 1is a schematic diagram of the overall structure of the present application;

[0023] Figure 2 is a schematic diagram of the overall structure of the present application from another perspective;

[0024] Figure 3 is a sectional view of the overall structure of the present application;

[0025] Figure 4 is a schematic diagram of the structure of the support frame and the rotating rod of the present application;

[0026] Figure 5 is a schematic diagram of the structure of the crushing tooth and the stopper of the present application;

[0027] Figure 6 is a schematic diagram of the structure of the fixed disc, the fixed frame and the moving plate of the present application;

[0028] Figure 7 is a front view of the structure of the fixed disc, the fixed frame and the moving plate of the present application;

[0029] Figure 8 is a schematic diagram of the structure of the fixed frame and the moving plate of the present application;

[0030] Figure 9 is a sectional view of the structure of the fixed frame and the moving plate of the present application;

[0031] Figure 10 is a schematic diagram of the structure of the moving plate, the first gear, the first rack and the second rack of the present application;

[0032] In the figure: 1, the body; 2, the rotating rod; 21, the fixed frame; 22, the moving plate; 221, the first spring; 23, the limiting groove; 231, the vertical section; 232, the inclined section; 24, the stopper; 241, the first rack; 242, the first gear; 243, the second rack; 244, the extrusion rod; 245, the through hole; 246, the first roller; 247, the magnetic rod; 248, the second spring; 249, the second roller; 25, the crushing tooth; 26, the driving gear; 3, the fixed rod; 31, the fixed disc; 32, the positioning groove; 321, the crushing section; 322, the filtering section; 323, the cleaning section; 324, the discharging section; 325, the resetting section; 33, the electromagnet; 34, the air outlet; 4, the support plate; 41, the filter plate; 42, the protrusion; 43, the discharging frame; 5, the Roots blower assembly; 51, the first air outlet pipe; 52, the air outlet frame; 53, the circulating tank; 54, the circulating pipe; 6, the driving motor; 61, the pulley; 7, the collection tank. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0034] Example 1: As Figures 1 to 10 As shown in the figure, a plastic crushing and recycling device according to an embodiment of the present invention includes a body 1. Rotating rods 2 are symmetrically arranged inside the upper surface of the body 1. Crushing teeth 25 are fixedly connected to the surfaces of both rotating rods 2, and the crushing teeth 25 are staggered and meshing. A fixing frame 21 is fixedly connected inside the rotating rod 2. A stop block 24 is slidably connected inside the fixing frame 21. A through hole 245 is provided on one side of the stop block 24. A support plate 4 is provided on one side of the rotating rod 2. The support plate 4 is fixedly connected inside the body 1. A filter plate 41 is fixedly connected to the surface of the support plate 4. A discharge rack 43 is provided on one side of the filter plate 41. The discharge rack 43 and the support plate 4 are fixedly connected. A circulation box 53 is fixedly connected to one side of the discharge rack 43. The circulation box 53 is fixedly connected to the lower surface of the body 1. A circulation pipe 54 is fixedly connected between one side of the circulation box 53 and the feed inlet of the body 1. A feeding assembly is provided on one side of the body 1.

[0035] Specifically, in existing double-roll plastic crushers, some of the insufficiently crushed plastic is discharged along with the fully crushed waste. At the same time, a filter plate 41 is used for screening. After screening, the substandard waste needs to be manually poured back into the crushing device for repeated crushing until all the waste is crushed to the appropriate size. The above operation is cumbersome, which increases the crushing time and causes a decrease in crushing efficiency.

[0036] To solve the above-mentioned technical problems, this device is used as follows: When it is necessary to crush plastic, the plastic can be poured into the feed port above the main body 1. The plastic falls between the rotating rods 2 through the feed port, and the rotating rods 2 are driven to rotate. The two rotating rods 2 drive the crushing teeth 25 on their surfaces to rotate synchronously. The crushing teeth 25 rotate and mesh with each other, which can crush the plastic. The crushed plastic can fall onto the surface of the support frame and be filtered through the filter plate 41 on the surface of the support frame. The completely crushed waste can fall into the inside of the collection box 7.

[0037] When the plastic is not broken up sufficiently, the plastic will fall onto the inner upper surface of the filter plate 41. At this time, the breaking teeth 25 rotate to the surface of the support plate 4 and fit against the upper surface of the support plate 4. Then, the drive block 24 slides inside the fixed frame 21, so that the block 24 slides from the inner wall of the rotating rod 2 to the outer side and fits against the inner wall of the support plate 4. The sides of the block 24 and the breaking teeth 25 fit together, and multiple blocks 24 and breaking teeth 25 can form a complete push plate.

[0038] The push plate forms a relatively sealed area between the push plate and the filter plate 41, and at the same time, the inside of the block 24 is ventilated, and the airflow is discharged from the through hole 245. Since the through hole 245 is inclined, a composite airflow of oblique downward pressure and horizontal pushing is generated. The airflow of oblique downward pressure can blow to the filter hole and clean the filter hole. At the same time, the airflow of horizontal pushing blows the plastic on the filter plate 41, and the plastic floats under the influence of the wind, so that the push plate pushes the plastic and is blown by the wind to perform the turnover operation. That is, the incompletely broken plastic principle filter hole is blown to make the plastic of qualified size be blown by the airflow to pass through the filter plate 41 for screening operation.

[0039] The push plate slides on the filter plate 41, and the plastic that is not broken completely on the filter plate 41 is pushed into the inside of the discharge rack 43, and falls into the circulating box 53 through the discharge rack 43. Then the feeding assembly is opened, and the plastic in the circulating box 53 is fed into the feeding port of the body 1 again for breaking operation.

[0040] The device can re-feed the plastic that is not completely broken. The design realizes full-automatic circulation processing, and the block 24 and the breaking tooth 25 are attached and rotated, so that the unqualified plastic retained on the filter plate 41 can be cleaned in real time to prevent the plastic from being accumulated and clogging the screen hole.

[0041] The device sprays the composite airflow of oblique downward pressure + horizontal pushing through the through hole 245, which can instantly turn up the qualified particles that are pressed on the bottom layer and cannot contact the screen hole, so that the particles pass through the filter plate 41 again, avoid that the incompletely broken plastic covers the filter hole, and make the completely broken plastic difficult to pass through the filter hole, thereby solving the problem of low plastic breaking efficiency.

[0042] As shown in Figure 1 and Figure 2 , one side of the body 1 is fixedly connected with a motor, and the output end of the motor and one end of the rotating rod 2 are both fixedly connected with a belt wheel 61. The two belt wheels 61 are connected through a belt drive. One end of the rotating rod 2 is fixedly connected with a drive gear 26, and the two drive gears 26 are engaged with each other.

[0043] Specifically, when it is necessary to drive the rotating rod 2 to rotate, the motor can be turned on to drive the belt wheel 61 on the output end to rotate. Through the action of the belt, one of the rotating rods 2 can be synchronously driven to rotate, so that the rotating rod 2 can rotate. Then the rotating rod 2 drives the drive gear 26 to rotate, and the two drive gears 26 are engaged, so that the two rotating rods 2 can be synchronously driven to rotate.

[0044] As shown in Figure 1 and Figure 2As shown, the feeding assembly comprises a Roots blower assembly 5, and the output end of the Roots blower assembly 5 is fixedly connected with a first exhaust pipe 51, one end of the first exhaust pipe 51 is fixedly connected with the inside of a circulating box 53.

[0045] Specifically, the Roots feeding assembly is a prior art, when it is needed to re-feed the incompletely crushed plastics into the inside of the body 1 for crushing, the Roots blower assembly 5 can be opened, the Roots blower generates a feeding airflow, the feeding airflow enters the inside of the circulating box 53 through the first exhaust pipe 51, the waste in the inside of the circulating box 53 enters the inside of a circulating pipe 54, and finally enters the inside of the body 1 through the circulating pipe 54 and falls between the crushing teeth 25 again for re-crushing operation.

[0046] As shown in the figure, Figure 6 As shown, one end of the stop block 24 is fixedly connected with a magnetic rod 247, the magnetic rod 247 and the fixed frame 21 are fixedly connected with a first spring 221, and one end of the magnetic rod 247 is rotatably connected with a second roller 249.

[0047] As shown in the figure, Figure 7 As shown, the inside of the rotating rod 2 is provided with a fixed rod 3, the fixed rod 3 and the outer wall of the body 1 are fixedly connected, the surface of the fixed rod 3 is fixedly connected with a fixed disc 31, the inside of the fixed disc 31 is provided with a positioning groove 32, and the inner wall of the positioning groove 32 and the surface of the second roller 249 are slidably connected.

[0048] As shown in the figure, Figure 7 As shown, the positioning groove 32 comprises a crushing section 321, one side of the crushing section 321 is provided with a filtering section 322, one side of the filtering section 322 is provided with a cleaning section 323, one side of the cleaning section 323 is provided with a discharging section 324, one side of the discharging section 324 is provided with a resetting section 325, the inside of the fixed disc 31 is fixedly connected with an electromagnet 33, and the magnetism of the electromagnet 33 after being electrified and the magnetism of the magnetic rod 247 repel each other.

[0049] Specifically, when the rotating rod 2 drives the fixed frame 21 to rotate, the fixed frame 21 drives the stop block 24 to rotate synchronously, in the initial state, the second roller 249 is in the inside of the crushing section 321, when the second roller 249 slides in the crushing section 321, the rotating rod 2 drives the crushing teeth 25 to mesh with each other and crush the plastics;

[0050] When the second roller 249 drives the magnetic rod 247 to move, it informs the electromagnet 33. After being energized, the electromagnet 33 repels the magnetic rod 247, causing the second roller 249 to drive the magnetic rod 247 to move into the discharge section 324. The magnetic rod 247 drives the stop block 24 to slide inside the fixed frame 21, causing the stop block 24 to slide outward of the rotating rod 2 and squeeze the second spring 248. At this time, the stop block 24 and the crushing teeth 25 are both in contact with the upper surface of the filter plate 41, which can form a push plate to push the insufficiently crushed material.

[0051] When the second roller 249 moves to the discharge section 324, the stop block 24 and the crushing tooth 25 push the insufficiently crushed plastic into the interior of the discharge rack 43, and the plastic falls into the discharge rack 43 and enters the interior of the circulation box 53.

[0052] When the second roller 249 moves to the reset section 325, the electromagnet 33 releases the repulsive force on the magnetic rod 247. At this time, the second spring 248 pulls the second roller 249 on the magnetic rod 247 to slide, so that the second roller 249 slides from the reset section 325 to the breaking section 321, and the stop block 24 can be stored inside the rotating rod 2.

[0053] Example 2: Figures 6 to 10 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a protrusion 42 is provided between the filter plate 41 and the discharge rack 43, and the protrusion 42 is fixedly connected to the upper surface of the support plate 4.

[0054] like Figure 9 As shown, a movable plate 22 is slidably connected inside the fixed frame 21, and a first spring 221 is fixedly connected between the movable plate 22 and the fixed frame 21. A limiting groove 23 is provided inside the movable plate 22, and a first roller 246 is rotatably connected inside the stop block 24. The surface of the first roller 246 is slidably connected to the inner wall of the limiting groove 23. The limiting groove 23 includes a vertical section 231, and an inclined section 232 is provided on one side of the vertical section 231.

[0055] like Figure 9 and Figure 10 As shown, a first rack 241 is slidably connected inside the movable plate 22, a first gear 242 is rotatably connected inside the stop block 24, and a second rack 243 is slidably connected inside the stop block 24. The second rack 243 and the first rack 241 both mesh with the first gear 242. One end of the second rack 243 is fixedly connected to a pressing rod 244, and the size of the pressing rod 244 matches that of the through hole 245.

[0056] like Figure 6As shown, the surface of the fixed rod 3 is provided with several air outlets 34, one end of the fixed rod 3 is fixedly connected with an air exhaust frame 52, one end of the air exhaust frame 52 is fixedly connected with one end of a first air exhaust pipe 51.

[0057] Specifically, the through hole 245 in the above technical solution can exhaust the gas flow for the material turning operation. Due to the inconsistent size of the broken plastic, and the pushing of the blocking block 24 and the crushing teeth 25, the waste is accumulated and separated from the through hole 245, and part of the plastic is embedded in the inside of the through hole 245, which causes the through hole 245 to be blocked, making it difficult for the plastic to be turned, causing part of the fully broken plastic to enter the circulation stage, thereby causing the problem of reduced collection efficiency of the fully broken plastic.

[0058] In order to avoid the above problems, the device is used as follows: when the second roller 249 moves from the crushing section 321 to the filtering section 322, the magnetic rod 247 drives the blocking block 24 to slide in the inside of the fixed frame 21, the blocking block 24 drives the first roller 246 to slide in the limiting groove 23 in the inside of the moving plate 22, in the initial state, the first roller 246 slides in the vertical section 231 of the limiting groove 23.

[0059] When the blocking block 24 and the inner upper surface of the filtering plate 41 are completely attached, the first roller 246 moves from the vertical section 231 to the inclined section 232, so that the first roller 246 extrudes the moving plate 22, so that the moving plate 22 drives the first rack 241 in its inside to slide synchronously through the first spring 221, the first rack 241 and the first gear 242 are engaged, the first gear 242 and the second rack 243 are engaged, the second rack 243 drives the extrusion rod 244 to move, so that the extrusion rod 244 slides to the inside of the blocking block 24, that is, the through hole 245 is opened, at this time the sliding block is away from the fixed frame 21, and the lower surface thereof is in an open state, the first rack 241 and the inside of the blocking block 24 are slidably connected, so that when the blocking block 24 slides to the outside of the rotating rod 2, the first rack 241 in the inside of the moving plate 22 slides synchronously, the gas flow generated by the Roots blower assembly 5 enters the inside of the air exhaust frame 52 through the first air exhaust pipe 51, then enters the inside of the fixed rod 3 through the air exhaust frame 52, and is exhausted to the inside of the rotating rod 2 through the air outlets 34 on the surface of the fixed rod 3, and finally is exhausted through the through hole 245 in the inside of the sliding block, the through hole 245 can exhaust the gas flow for the material turning operation, when the second roller 249 moves to the cleaning section 323, the blocking block 24 moves to the upper surface of the protruding block 42, the blocking block 24 is forced to slide to the inside of the rotating rod 2, so that the first roller 246 slides from the inclined section 232 to the vertical section 231, that is, the extrusion rod 244 is driven to reset to the inside of the through hole 245, so that the plastic blocked in the inside of the through hole 245 can be cleaned, when the blocking block 24 is away from the protruding block 42 and the second roller 249 slides to the discharging section 324, the blocking block 24 continues to be attached to the upper surface of the supporting plate 4, and the through hole 245 is opened and blows the material.

[0060] The device can automatically clean the through hole 245, avoid the inside of the through hole 245 from entering the plastic and plugging the through hole 245, cause difficult to turn over the material, make the completely broken plastic covered and difficult to collect through the filter hole, thereby causing the problem of the plastic breaking efficiency decline.

[0061] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A plastic breaking recycling device characterized by: The utility model provides a kind of material crushing machine, including body (1), the upper surface inside of the body (1) is symmetrically provided with rotating rod (2), the surface of two rotating rod (2) is fixedly connected with broken tooth (25), and broken tooth (25) is staggered meshing arrangement, the inside of rotating rod (2) is fixedly connected with fixed frame (21), the inside of fixed frame (21) is slidably connected with stop block (24), one side of stop block (24) is provided with through hole (245), one side of rotating rod (2) is provided with support plate (4), support plate (4) is fixedly connected in the inside of body (1), the surface of support plate (4) is fixedly connected with filter plate (41), one side of filter plate (41) is provided with discharge rack (43), discharge rack (43) and support plate (4) are fixedly connected, one side of discharge rack (43) is fixedly connected with circulation tank (53), circulation tank (53) is fixedly connected in the lower surface of body (1), one side of circulation tank (53) and the feed inlet between body (1) are fixedly connected with circulation pipe (54), one side of body (1) is provided with feeding assembly; The inside of rotating rod (2) is provided with fixed rod (3), the outer wall of fixed rod (3) and body (1) is fixedly connected, the surface of fixed rod (3) is fixedly connected with fixed disc (31), the inside of fixed disc (31) is provided with positioning groove (32), the inner wall of positioning groove (32) and the surface of second roller (249) are slidably connected, positioning groove (32) includes broken section (321), one side of broken section (321) is provided with filter section (322), one side of filter section (322) is provided with cleaning section (323), one side of cleaning section (323) is provided with discharge section (324), one side of discharge section (324) is provided with reset section (325), the inside of fixed disc (31) is fixedly connected with electromagnet (33), the magnetism of electromagnet (33) after electrification and the magnetism of magnetic rod (247) repel each other. The inside of the fixed support (21) is slidably connected with a moving plate (22), a first spring (221) is fixedly connected between the moving plate (22) and the fixed support (21), the inside of the moving plate (22) is provided with a limiting groove (23), the inside of the stop block (24) is rotatably connected with a first roller (246), the surface of the first roller (246) is slidably connected with the inner wall of the limiting groove (23), the limiting groove (23) comprises a vertical section (231), one side of the vertical section (231) is provided with an inclined section (232), the inside of the moving plate (22) is slidably connected with a first rack (241), the inside of the stop block (24) is rotatably connected with a first gear (242), the inside of the stop block (24) is slidably connected with a second rack (243), the second rack (243) and the first rack (241) are in mesh with the first gear (242), one end of the second rack (243) is fixedly connected with a pressing rod (244), the pressing rod (244) is matched with the size of the through hole (245).

2. A plastic crushing and recycling device as claimed in claim 1, wherein: The side of the body (1) is fixedly connected with a motor, the output end of the motor and one end of the rotating rod (2) are fixedly connected with a belt wheel (61), the two belt wheels (61) are drivenly connected through a belt, one end of the rotating rod (2) is fixedly connected with a driving gear (26), the two driving gears (26) are in mesh with each other.

3. A plastic crushing and recycling device as claimed in claim 2, wherein: The feeding assembly comprises a Roots blower assembly (5), the output end of the Roots blower assembly (5) is fixedly connected with a first exhaust pipe (51), one end of the first exhaust pipe (51) and the inside of the circulating box (53) are fixedly connected.

4. A plastic crushing and recycling device as claimed in claim 3, wherein: One end of the stop block (24) is fixedly connected with a magnetic rod (247), the magnetic rod (247) and the fixed support (21) are fixedly connected with a first spring (221), one end of the magnetic rod (247) is rotatably connected with a second roller (249).

5. A plastic crushing and recycling device as claimed in claim 1, wherein: The convex block (42) is fixedly connected with the upper surface of the supporting plate (4) between the filter plate (41) and the discharging rack (43).

6. A plastic crushing and recycling device as claimed in claim 1, wherein: The surface of the fixed rod (3) is provided with a plurality of exhaust openings (34), one end of the fixed rod (3) is fixedly connected with an exhaust rack (52), one end of the exhaust rack (52) and one end of the first exhaust pipe (51) are fixedly connected.

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