A device for crushing and separating agricultural waste plastic film and its separation method

Abstract

This invention provides a crushing and separating device and method for agricultural waste plastic film, belonging to the field of agricultural production technology. It solves the technical problem that existing methods of simply screening plastic film through vibration still leave it with a significant amount of soil and other contaminants, requiring further processing for recycling. The device and method include a support frame and a mounting frame. Support columns are fixed to the bottom of both the support frame and the mounting frame. A linear motor is bolted between the support frame and the mounting frame. Two connecting plates are fixed to the output end of the linear motor. A top plate is integrally formed on the top of the two connecting plates, with a clamping mechanism on the top plate and a drying mechanism on the side. A cleaning mechanism is located below the linear motor on the right side. This invention has advantages such as increasing the service life of the crusher body, improving crushing efficiency, and producing cleaner raw materials for secondary use after crushing the waste plastic film.

Description

Technical Field

[0001] This invention belongs to the field of agricultural production technology and relates to a waste plastic film crushing and separation device, particularly a waste agricultural plastic film crushing and separation device and its separation method. Background Technology

[0002] Plastic mulch is difficult to degrade naturally, and its residue in fields causes "white pollution." Waste plastic mulch residue in the soil damages soil structure, reduces soil moisture absorption and permeability, and affects crop emergence and root growth. Recycling waste plastic mulch can reduce plastic residue in the soil, protect the soil ecosystem, and after recycling, waste plastic mulch can be processed into new plastic products or raw materials, realizing the recycling of resources. However, after use, waste plastic mulch will be contaminated with soil, straw, etc. If it is not effectively separated, it will be difficult to utilize the materials in the recycling and secondary production process.

[0003] A search revealed a Chinese patent document disclosing an agricultural straw processing and reuse device with a plastic film separation function [Application No.: 202210991614.5; Publication No.: CN115351034B]. This device uses a screening and filtering device to remove residual plastic film from the raw straw, separates the residual film from the straw fragments using a filter plate, and then sends the filtered plastic film waste to a waste recycling device for further processing via a triangular conveyor plate. Simultaneously, a vibrating impact wheel continuously strikes the filter plate, allowing the waste on the filter plate to be fed into the waste recycling device more quickly, ensuring that no plastic film waste remains in the crushed straw.

[0004] Although the agricultural straw processing and reuse device with mulch film separation function disclosed in this patent achieves the separation of mulch film and straw, the core technology of this agricultural straw processing and reuse device with mulch film separation function is to achieve separation through screening, filtration and vibration. Mulch film has a certain degree of slight stickiness, and straw fragments adhere to the mulch film through electrostatic and other means, making it difficult to completely pass through the filter. Moreover, the mulch film screened by vibration alone is still in a state with a lot of soil and other dirt, and further processing is still required for subsequent recycling. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an agricultural waste mulch film crushing and separation device and its separation method. The technical problem to be solved by this invention is: how to improve the service life of the crusher body, increase the crushing efficiency, and make the waste mulch film into cleaner secondary raw materials.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] An agricultural waste plastic film crushing and separation device and its separation method include a support frame and a mounting frame. The bottom of the support frame and the mounting frame are fixed with a support column. A linear motor is fixed between the support frame and the mounting frame by bolts. A connecting plate is fixed to the output end of the linear motor. There are two connecting plates. The top of the two connecting plates is integrally formed with a top plate. A clamping mechanism is provided on the top plate. A drying mechanism is provided on the side of the top plate. A cleaning mechanism is provided on the right side below the linear motor. A crusher body is placed on the left side below the linear motor. A cutting mechanism is provided on the crusher body.

[0008] The clamping mechanism includes a second electric telescopic rod, a mounting frame is fixed at the bottom of the second electric telescopic rod, a second motor is fixed inside the mounting frame, and the output end of the second motor is connected to the bottom of the mounting frame. The output end of the second motor is key-connected to the clamping frame. Slide grooves are provided on both the left and right sides of the clamping frame, and clamping strips are inserted in the slide grooves. Springs are fixed to the top of the inner wall of the clamping frame for the clamping strips.

[0009] The cutting mechanism includes a fixed plate positioned at the upper front of the crusher body. A third motor is fixed to the front end of the fixed plate, and the output end of the third motor is connected to the rear end of the fixed plate. A circular plate is keyed to the output end of the third motor. The front end of the circular plate, away from the center, is keyed to the output end of the third motor. A single-hole rotating plate is fixedly connected to the rear end of the circular plate, away from the center. A first double-hole rotating plate is rotatably connected to the end of the single-hole rotating plate away from the circular plate. A three-hole rotating plate is rotatably connected to the end of the first double-hole rotating plate away from the single-hole rotating plate. A three-hole rotating plate has a central hole. A short rod is fixed to a fixed plate. A three-hole rotating plate rotates around the short rod. A second two-hole rotating plate is rotatably connected to the end of the three-hole rotating plate away from the first two-hole rotating plate. A mounting sliding block is rotatably connected to the end of the second two-hole rotating plate away from the three-hole rotating plate. A limit groove plate is fitted into the bottom of the mounting sliding block in a trapezoidal shape. A connecting trapezoidal block is fixed to the bottom of the limit groove plate. The connecting trapezoidal block is slidably connected to the trapezoidal groove opened at the rear end of the fixed plate. A movable ring is fixed to the bottom of the connecting trapezoidal block. The movable ring is sleeved on the circular plate. An electric heating cutting wire is fixed to the top of the mounting sliding block.

[0010] The working principle of this invention is as follows: A linear motor drives the waste plastic film to move to different positions for cleaning, drying, and crushing. A clamping mechanism clamps the waste plastic film, a cleaning mechanism cleans the clamped film, a drying mechanism dries the film after cleaning, and a cutting mechanism pre-cuts the film before it enters the crusher body. After pre-cutting, the film enters the crusher body clean and free of debris, eliminating the need for manual transfer, saving labor, preventing wear and damage to the internal structure of the crusher body, extending its service life, and ensuring the crushed film is clean and uncontaminated for easy use. Pre-cutting also improves the cutting efficiency of the crusher body and avoids... Excessive length of the plastic film causes entanglement in the internal parts of the crusher. The clamping bar is moved upwards to compress the spring, allowing one end of the waste plastic film to pass between the clamping bar and the clamping frame. The clamping bar is then released, and the spring's restoring force moves it downwards, securing the waste plastic film between the clamping bar and the clamping frame. When the linear motor moves the machine body above the cleaning mechanism, the second electric telescopic rod extends, allowing the waste plastic film to enter the cleaning mechanism. The second motor drives the clamping frame to rotate, and the waste plastic film rotates with the clamping frame in clean water. Simultaneously, the second electric telescopic rod repeatedly extends and retracts, causing the waste plastic film to rotate up and down in the water for thorough cleaning and removal of impurities. The third motor and the electrothermal cutting wire are existing technologies. After being washed and dried, the waste plastic film is moved to the top of the crusher body by a linear motor. A third motor drives a circular plate to rotate, with the center of rotation different from the center of the circular plate, thus expanding the rotation range of the circular plate. The movable ring, limited by the trapezoidal block and the trapezoidal groove, can only move linearly up and down. The movable ring moves linearly up and down with the circular plate. The single-hole rotating plate rotates with the circular plate, the first double-hole rotating plate rotates with the single-hole rotating plate, and the three-hole rotating plate rotates with the first double-hole rotating plate. The three-hole rotating plate rotates around the short rod on the fixed plate as its center. The second double-hole rotating plate rotates with the three-hole rotating plate. The bottom of the mounting sliding block is trapezoidal, which fits into the trapezoidal groove at the top of the limiting groove plate. The fitting relationship determines the movement trajectory of the mounting sliding block. The limiting and mounting sliding block moves linearly left and right with the second double-hole rotating plate, while the limiting groove plate moves up and down with the connecting trapezoidal block. This causes the mounting sliding block to repeatedly move up, down, left, and right with the limiting groove plate. The electrothermal cutting wire also repeatedly moves up, down, left, and right with the mounting sliding block. During the movement of the electrothermal cutting wire, it cuts the waste plastic film. After cutting, the plastic film falls into the crusher body. The third motor and multiple rotating plates form a linkage motion, which complicates the trajectory of the electrothermal cutting wire and increases the cutting frequency. This results in smaller sizes of the waste plastic film after the initial cut, which reduces the crushing work of the crusher body and prevents excessively long waste plastic film from wrapping around the internal parts of the crusher body, thus extending the service life of the crusher body.

[0011] The bottom of the connecting plate mentioned above is fixed with a sliding protrusion. The bottom of the sliding protrusion has an installation groove. A roller is rotatably connected in the installation groove. A slide rail is fixed between the bracket and the mounting frame. Both the sliding protrusion and the roller move within the slide rail.

[0012] With the above structure, when the linear motor drives the front connecting plate to move, the top plate moves with the front connecting plate, and the rear connecting plate moves with the top plate. The sliding protrusion moves behind the rear connecting plate in the slide rail. The sliding protrusion moves by rotating the bottom roller on the bottom of the inner wall of the slide rail. The roller reduces the friction between the sliding protrusion and the slide rail, supporting the machine body while making the connecting plate move more smoothly and flexibly.

[0013] The drying mechanism includes a first blower fixed to the top of the mounting frame by bolts, and sloping bottom air ducts symmetrically fixed on both sides of the top plate. The output end of the first blower is connected to the two sloping bottom air ducts through a double outlet air duct.

[0014] With the above structure, the air outlets of the two sloping bottom air ducts are aligned with the vertical horizontal line where the clamping frame is located. After the first blower runs, the air is discharged through the double outlet air duct and the sloping bottom air duct in sequence, drying the waste film on the water surface after cleaning. This prevents residual water from entering the crusher body and causing damage to the easily rusted metals and electronic components inside, thus extending the service life of the crusher body.

[0015] The cleaning mechanism includes a water-holding frame with a water outlet on the right side of the inner wall of the water-holding frame. A metal mesh is fixed inside the water outlet. The water inlet of a butterfly valve is connected to the right side of the water outlet. The flange of the butterfly valve is connected to the lower part of the outer wall of the water-holding frame. A drain pipe is connected to the flange of the outlet of the butterfly valve. A sedimentation mechanism is provided at the bottom of the water-holding frame.

[0016] With the above structure, and provided that the butterfly valve is closed and the sedimentation bottom frame is tightly sealed at the bottom of the water-holding frame, clean water is added to the water-holding frame for cleaning waste plastic film. After cleaning, the second electric telescopic rod retracts, causing the waste plastic film to leave the water-holding frame. At this time, wait for the impurities in the water to settle to the sedimentation bottom frame. The water outlet is located above the sedimentation bottom frame. After sedimentation, connect the external sewage pipe to the drain pipe, open the butterfly valve, and the sewage will be discharged after passing through the metal mesh, butterfly valve, and drain pipe in sequence, without the need for manual water emptying.

[0017] The sedimentation mechanism includes a base, a first electric telescopic rod fixed to the top of the base, an installation component fixed to the top of the first electric telescopic rod, a first motor fixed to the front end of the installation component, a rotating connecting rod fixed to the output end of the first motor, a sedimentation bottom frame fixed to the top of the rotating connecting rod, the sedimentation bottom frame can slide at the bottom of the inner wall of the water-holding frame, and a sealing layer is provided between the sedimentation bottom frame and the water-holding frame, and the sealing layer is fixedly connected to the sedimentation bottom frame.

[0018] With the above structure, when the filter frame is located to the lower right of the sedimentation bottom frame, the first electric telescopic rod retracts, causing the sedimentation bottom frame to detach from the bottom of the water-holding frame. The first motor drives the rotating connecting rod to rotate, and the water-holding frame rotates clockwise with the rotating connecting rod, pouring the sedimented debris into the filter frame. The sedimentation mechanism and the cleaning mechanism achieve solid-liquid separation of sewage, realizing the preliminary treatment of sewage and avoiding blockage of the sewage drainage system of the waste film crushing workshop.

[0019] The sedimentation bottom frame has sliding grooves on the front and rear sides of its inner wall, and push plates are slidably connected in the sliding grooves. The push plates are slidably connected to the sedimentation bottom frame through a rotating wheel.

[0020] With the above structure, when the sedimentation bottom frame is tilted, the push plate slides to the lower right inside the sedimentation bottom frame. During the sliding process, the roller rotates in the chute, reducing friction and accelerating the movement of the push plate. The push plate pushes the debris in the sedimentation bottom frame into the filter frame more quickly, making the debris dumped more thoroughly.

[0021] A transmission mechanism is located on the right side below the sedimentation bottom frame. The transmission mechanism includes a fourth motor, and a lead screw is fixed to the output end of the fourth motor. A slider is threaded onto the lead screw. There are two sliders, which are distributed front and back. A sliding rod is inserted into the slider behind the lead screw. Positioning plates are fixed at the corresponding positions on the left and right ends of the sliding rod and the lead screw. A filter frame is fixed to the top of the two sliders. A limit strip is fixed inside the filter frame. A filter screen is placed on the limit strip. Magnetic blocks are fixed to the left and right sides of the top of the filter screen.

[0022] With the above structure, when the filter frame is located on the left and right positioning plates, it corresponds to the lower right of the sedimentation bottom frame and the lower right of the fixed cover, respectively. The fourth motor drives the lead screw to rotate, and the slide bar limits the front slide through the rear slide and the filter frame to prevent it from rotating with the lead screw. This allows the front slide and the lead screw to achieve threaded transmission, and the slide moves linearly left and right. The filter frame moves left and right with the slide to different processing step areas. The filter screen is placed on the limiting strip to filter out excess mud and water, and the filter screen can be removed from the filter frame, avoiding manual transfer, saving manpower, time and effort, and also avoiding the situation where water and debris are difficult to clean during the transfer process.

[0023] A feeding mechanism is located above the transmission mechanism. The feeding mechanism includes a fixed cover, a rotating door rotatably connected to the right side of the fixed cover, a fourth electric telescopic rod fixed to the top of the inner wall of the fixed cover, a connecting horizontal plate fixed to the bottom of the fourth electric telescopic rod by bolts, electromagnets fixed at both ends of the bottom of the connecting horizontal plate, the electromagnets being magnetically connected to the magnetic blocks, the filter screen being able to contact the fixed cover and the rotating door from all sides, and an air supply mechanism is located at the top of the fixed cover. The air supply mechanism includes a connecting frame fixed between the fixed cover and the mounting frame, a second blower fixed inside the connecting frame by bolts, a single outlet air duct connected to the output end of the second blower, the end of the single outlet air duct away from the second blower being fixed to the left side of the fixed cover, a baffle fixed between the single outlet air duct and the fixed cover, and a diversion mechanism between the second blower and the single outlet air duct.

[0024] With the above structure, when the filter frame is directly below the fixed cover, the fourth electric telescopic rod extends, bringing the electromagnet closer to the magnetic block. Once the bottom of the electromagnet aligns with the top of the magnetic block, the electromagnet operates, magnetically connecting with the magnetic block. The fourth electric telescopic rod retracts, the connecting plate moves upward with the fourth electric telescopic rod, the electromagnet moves upward with the connecting plate, the magnetic block moves upward with the electromagnet, and the filter screen moves upward with the magnetic block into the fixed cover. With the second blower connected to the inside of the fixed cover, the second blower enters the fixed cover sequentially through the through holes on the right and bottom of the three-way box and the round hole at the top of the fixed cover, blowing... Solid debris on the surface of the dry filter screen is removed, and the screen prevents lighter debris such as straw fragments from entering the single-outlet air duct. After the debris is dried, the air outlet of the second blower is connected to the single-outlet air duct and the rotary door opening through the diversion mechanism. The external collection bag is attached to the rotary door opening, and the second blower blows lighter debris (mostly straw and other plant matter) into the external collection bag for subsequent secondary utilization. Heavier debris such as gravel remains on the filter screen and is thrown into the soil or reused. The debris adhering to the waste is treated by wind screening to extract value, avoiding the waste from occupying the workshop's waste disposal space, which is environmentally friendly.

[0025] The diversion mechanism includes a three-way box with through holes on its left, right, and bottom sides. The left through hole connects to a single-outlet duct, the right through hole connects to the output end of a second blower, and the bottom through hole connects to a circular hole on the top of a fixed cover. A fifth motor is fixed at the lower left corner of the front end of the three-way box, and a first rotating shaft is fixed at the output end of the fifth motor. A baffle is fixed at the position of the first rotating shaft inside the three-way box. A first synchronous pulley is keyed to the position of the first rotating shaft extending to the rear end of the three-way box. A neck shaft is rotatably connected at the upper right corner of the rear end of the fixed cover. A second synchronous pulley is keyed to the neck shaft. A synchronous belt is fitted on the first and second synchronous pulleys. A first gear is keyed to the position of the neck shaft at the rear end of the second synchronous pulley. The fixed cover and the rotating door are rotatably connected via a second rotating shaft. The second rotating shaft is fixedly connected to the rotating door. A second gear is keyed to the rear end of the second rotating shaft, and the first gear meshes with the second gear.

[0026] With the above structure, the first gear and the second gear have the same number of teeth. When it is necessary to change the air outlet of the second blower on the fixed cover, the fifth motor drives the first rotating shaft and the first synchronous pulley to rotate. The baffle rotates 90° clockwise with the first rotating shaft, which blocks the bottom through hole of the three-way box, realizing air outlet from the left side of the fixed cover. The baffle rotates 90° counterclockwise, which blocks the left through hole of the three-way box, realizing air outlet from the top of the fixed cover. The synchronous belt transmits the rotation of the first synchronous pulley to the second synchronous pulley. The journal shaft rotates with the second synchronous pulley, and the first gear rotates with the journal shaft. The first gear transmits the transmission to the second gear, and the second gear drives the second rotating shaft to rotate. The rotating door rotates with the second rotating shaft to open or close. When the air blows out from the top of the fixed cover, it can blow the liquid in the debris out from the bottom of the filter screen, which speeds up the drying speed. When the air blows out from the left side of the fixed cover, it is directly aimed at the external collection bag, so that lighter objects can enter the collection bag more accurately. The diversion mechanism makes the baffle and the rotating door rotate in opposite directions almost simultaneously, realizing the change of air direction, improving the efficiency of air direction change, and improving the efficiency of wind power utilization.

[0027] A separation method for an agricultural waste plastic film crushing and separating device, wherein the method is a method of using the agricultural waste plastic film crushing and separating device, and the steps are as follows:

[0028] Step 1: Clamping, clamping the waste plastic film between the clamping strip and the clamping frame;

[0029] Step 2: Cleaning. Pour clean water into the water-holding frame until it reaches the upper / lower position. The linear motor drives the machine body to move horizontally until the machine body and the cleaning mechanism are on the same vertical horizontal line. The second electric telescopic rod pulls the clamped waste plastic film into the clean water. The second motor drives the clamping frame to rotate, while the second electric telescopic rod continues to extend and retract, causing the waste plastic film to rotate and be cleaned in the clean water. The rotation speed is 50 rpm, and the cleaning time is 10 minutes.

[0030] Step 3: Remove and dry. The second electric telescopic rod retracts, the waste plastic film is separated from the sewage, the linear motor drives the machine body to move between the crusher body and the water-holding frame, and the first blower blows the wet waste plastic film through the double-outlet air pipe and the inclined bottom air duct until it is dry.

[0031] Step 4: Preliminary crushing and complete crushing. The linear motor drives the machine body to move above the crusher body. The cutting mechanism preliminarily cuts the waste plastic film. After the preliminary cutting, the plastic film enters the crusher body for complete crushing. The completely crushed plastic film is then recycled for secondary use.

[0032] Step 5: Sedimentation. After cleaning the waste plastic film, the wastewater settles in the water-holding frame for 1.5 hours. After sedimentation, the butterfly valve is opened and the wastewater is discharged through the drain pipe. At this time, the fourth motor drives the lead screw to rotate. The threaded transmission between the slider and the lead screw causes the filter frame to move to the position limited by the positioning plate on the left. The first electric telescopic rod retracts, the sedimentation bottom frame moves down, and the first motor indirectly drives the sedimentation bottom frame to rotate clockwise. The push plate is attracted and slides on the sedimentation bottom frame towards the filter frame, pushing the wastewater and debris into the filter frame.

[0033] Step Six: Filtration. Impurities enter the filter frame and are separated into solid and liquid by the filter screen. At the same time, the fourth motor rotates in reverse to move the filter frame to the position defined by the right positioning plate.

[0034] Step 7: Drying. The fourth electric telescopic rod extends, bringing the running electromagnet close to the magnetic block and attracting it. After attraction, the fourth electric telescopic rod retracts, and the filter screen enters the fixed cover from the bottom along with the magnetic block. At this time, the revolving door is in the vertical closed state, and the baffle is in the vertical state, exposing the bottom through hole of the three-way box. The second blower blows air through the bottom through hole of the three-way box and the round hole at the top of the fixed cover to dry the debris until it is completely dry.

[0035] Step 8: Screening. After drying, the fifth motor indirectly drives the baffle to rotate 90° clockwise to block the bottom through hole of the three-way box and expose the left through hole. At the same time, the rotating door opens counterclockwise. The collection bag is pasted on the rotating door opening and the fixed cover. The second blower blows air through the three-way box and the single-outlet air pipe in sequence, blowing the dried straw and other plants into the collection bag, while heavier debris such as gravel remains on the filter screen. The screened straw and other plants can be reused.

[0036] Compared with existing technologies, this agricultural waste plastic film crushing and separation device and its separation method have the following advantages:

[0037] 1. The waste plastic film is fixed at one end by a clamping mechanism, washed in a water-filled frame, dried by a first blower, and initially cut by an electric heating wire moving up, down, left, and right. After a series of processes, the waste plastic film is placed into the crusher body, ensuring that the crushed film is clean and free of debris, improving the quality of the recycled material, simplifying subsequent recycling operations, and preventing soil, straw, gravel, and other debris from entering the crusher, thus avoiding wear and damage to the crusher and extending its service life. At the same time, the waste plastic film is initially crushed before entering the crusher body, improving crushing efficiency and preventing long plastic films from accidentally tangling with parts during the crushing process, further extending the crusher's service life.

[0038] 2. By setting a linear motor to provide the power for left and right linear movement, the waste plastic film is held between the clamping frame and the clamping strip. During this process, the waste plastic film is sequentially moved by the extension and retraction of the second electric telescopic rod, and the second motor rotates the waste plastic film up and down in clean water for washing. The second electric telescopic rod retracts, and the linear motor drives the connecting plate to move to the left, causing the waste plastic film to be removed from the clean water and dried by the first blower. The linear motor continues to drive the connecting plate to move to the left into the range of the electric heating cutting wire, so that the waste plastic film is initially crushed. In this process, apart from fixing the waste plastic film between the clamping frame and the clamping strip, no manual operation is required. This saves manpower and keeps the operators away from the waste plastic film, reducing dust inhalation and keeping them away from the crusher body, thus reducing personal safety risks during the crushing process and improving safety.

[0039] 3. By setting a third motor to drive the circular plate to rotate off its own center, and cooperating with the linkage transmission of the single-hole rotating plate, the first double-hole rotating plate, the three-hole rotating plate, and the second double-hole rotating plate, as well as the engagement of the limiting groove plate with the mounting sliding block and the connecting trapezoidal block with the trapezoidal groove of the fixed plate, the movement trajectory limitation in the left and right linear directions and the up and down linear directions is realized. This enables a single motor to indirectly drive the electrothermal cutting wire to move repeatedly up, down, left and right, making the movement trajectory of the electrothermal cutting wire more complex, the cutting frequency of waste plastic film is faster, the size of the waste plastic film after preliminary crushing is smaller, and the crushing efficiency is improved.

[0040] 4. The sedimentation mechanism allows wastewater to settle and impurities to settle in the sedimentation bottom frame. Wastewater is then discharged through the drain pipe, achieving solid-liquid separation and preliminary wastewater treatment. This avoids clogging of the wastewater discharge system in the waste film treatment workshop. The sedimentation bottom frame, indirectly driven by the first electric telescopic rod and the first motor, allows for the dumping of impurities and subsequent screening, exploring the potential for utilization of impurities and increasing their environmental value. Furthermore, the rotating wheel and push plate slide when the sedimentation bottom frame is tilted, pushing the impurities to move them more thoroughly and quickly onto the filter screen, improving operational efficiency.

[0041] 5. The filter frame and filter screen are conveyed by the transmission mechanism at the positions defined by the left and right positioning plates. The first electric telescopic rod and the first motor control the sedimentation bottom frame to tilt the debris. The fourth electric telescopic rod, electromagnet and magnetic block pull up the filter screen, so that the debris enters the filter frame and the fixed cover respectively for filtration, drying and screening. The debris does not need to be manually transferred in multiple steps, saving manpower and avoiding the situation that the debris is difficult to clean when it gets wet during the transfer process.

[0042] 6. Through the diversion mechanism, the fifth motor can simultaneously and indirectly drive the rotation of the baffle and the rotating door, changing the path of the second blower blowing air into the fixed cover. When the air blows out from the top of the fixed cover, it can blow the liquid in the debris out from the bottom of the filter screen, speeding up the drying speed. When the air blows out from the left side of the fixed cover, it is directly aimed at the external collection bag, so that lighter objects can enter the collection bag more accurately, improving the utilization rate of wind power.

[0043] 7. By adding cleaning, drying and preliminary crushing steps before the waste plastic film enters the crusher body, the waste plastic film becomes cleaner and of better quality as a secondary raw material after crushing. This reduces subsequent secondary utilization steps, improves the quality of the recycled materials, increases crushing efficiency, reduces the amount of debris entering the crusher body, and extends the service life of the crusher body. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the structure of the present invention.

[0045] Figure 2 This is a structural schematic diagram of the crusher body in this invention.

[0046] Figure 3 This is a schematic diagram of the slide rail part in this invention.

[0047] Figure 4 This is a schematic diagram of the cleaning mechanism in this invention.

[0048] Figure 5 This is a schematic diagram of the clamping mechanism in this invention.

[0049] Figure 6 This is a schematic diagram of the cutting mechanism in this invention.

[0050] Figure 7 This is a schematic diagram of the sedimentation bottom frame portion in this invention.

[0051] Figure 8 yes Figure 7 Enlarged view of the structure at point A in the middle.

[0052] Figure 9 This is a schematic diagram of the push plate part in this invention.

[0053] Figure 10 Figure 9 Enlarged view of the structure at point B.

[0054] Figure 11 This is a schematic diagram of the transmission mechanism in this invention.

[0055] Figure 12 yes Figure 11 Enlarged view of the structure at point D.

[0056] Figure 13 This is a schematic diagram of the feeding mechanism in this invention.

[0057] Figure 14 This is a schematic diagram of the diversion mechanism in this invention.

[0058] Figure 15 This is a schematic diagram of the synchronous belt portion in this invention.

[0059] Figure 16 This is a schematic diagram of the fifth motor part in this invention.

[0060] Figure 17 yes Figure 16 Enlarged view of the structure at point C.

[0061] Figure 18 This is a flowchart of the separation method of the agricultural waste plastic film crushing and separation device in this invention.

[0062] In the diagram, 1. Sedimentation mechanism; 101. Base; 102. First electric telescopic rod; 103. Mounting component; 104. First motor; 105. Rotating connecting rod; 106. Sedimentation bottom frame; 107. Push plate; 108. Rotating wheel; 2. Cleaning mechanism; 201. Water holding frame; 202. Metal mesh; 203. Drain pipe; 204. Butterfly valve; 3. Body; 301. Connecting plate; 302. Top plate; 4. Clamping mechanism; 401. Second electric telescopic rod; 402. Mounting frame; 403. Second motor; 4. 04. Clamping frame; 405. Clamping strip; 406. Spring; 5. Drying mechanism; 501. First blower; 502. Double-outlet air duct; 503. Sloping bottom air duct; 6. Crusher body; 7. Cutting mechanism; 701. Fixing plate; 702. Third motor; 703. Circular plate; 704. Single-hole rotating plate; 705. First double-hole rotating plate; 706. Three-hole rotating plate; 707. Second double-hole rotating plate; 708. Mounting sliding block; 709. Movable ring; 710. Connecting trapezoidal block; 711. Limiting groove plate; 7 12. Electrothermal cutting wire; 8. Bracket; 9. Support column; 10. Mounting bracket; 11. Transmission mechanism; 1101. Fourth motor; 1102. Lead screw; 1103. Slider; 1104. Filter frame; 1105. Limiting strip; 1106. Filter screen; 1107. Magnetic block; 1108. Slide rod; 1109. Positioning plate; 12. Feeding mechanism; 1201. Fixing cover; 1202. Turning door; 1203. Fourth electric telescopic rod; 1204. Connecting cross plate; 1205. Electromagnet; 13. Blower Structure; 1301, connecting frame; 1302, second blower; 1303, single outlet duct; 1304, baffle; 14, diverting mechanism; 1401, three-way box; 1402, fifth motor; 1403, first rotating shaft; 1404, baffle; 1405, first synchronous pulley; 1406, synchronous belt; 1408, first gear; 1409, second gear; 1410, second rotating shaft; 1407, second synchronous pulley; 15, linear motor; 16, slide rail; 17, sliding protrusion; 18, roller. Detailed Implementation

[0063] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0064] like Figures 1-17 As shown, the agricultural waste plastic film crushing and separation device of this embodiment includes a support 8 and a mounting frame 10. The bottom of both the support 8 and the mounting frame 10 is fixed with a support column 9. A linear motor 15 is fixed between the support 8 and the mounting frame 10 by bolts. A connecting plate 301 is fixed to the output end of the linear motor 15. There are two connecting plates 301. The top of the two connecting plates 301 is integrally formed with a top plate 302. A clamping mechanism 4 is provided on the top plate 302. A drying mechanism 5 is provided on the side of the top plate 302. A cleaning mechanism 2 is provided on the right side below the linear motor 15. A crusher body 6 is placed on the left side below the linear motor 15. A cutting mechanism 7 is provided on the crusher body 6.

[0065] In this embodiment, both the linear motor 15 and the crusher body 6 are existing technologies. The linear motor 15 is used to drive the waste plastic film to move to different positions for cleaning, drying and crushing respectively. The clamping mechanism 4 is used to clamp the waste plastic film, the cleaning mechanism 2 is used to clean the clamped waste plastic film, the drying mechanism 5 is used to dry it after cleaning, and the cutting mechanism 7 preliminarily cuts the plastic film before it enters the crusher body 6. After the preliminary cutting, the plastic film enters the crusher body 6 in a clean and debris-free state, eliminating the need for manual transfer of the plastic film, saving manpower, avoiding wear and damage to the internal structure of the crusher body 6 caused by debris, extending the service life of the crusher body 6, and the crushed plastic film is clean and uncontaminated, making it easy to use. The preliminary cutting improves the cutting efficiency of the crusher body 6 and avoids the plastic film being too long, which would cause the internal parts of the crusher body 6 to become entangled.

[0066] The clamping mechanism 4 includes a second electric telescopic rod 401. A mounting frame 402 is fixed to the bottom of the second electric telescopic rod 401. A second motor 403 is fixed inside the mounting frame 402, and the output end of the second motor 403 is connected to the bottom of the mounting frame 402. A clamping frame 404 is keyed to the output end of the second motor 403. Sliding grooves are provided on both the left and right sides of the clamping frame 404. A clamping strip 405 passes through the sliding groove. A spring 406 is fixed to the top of the inner wall of the clamping frame 404 and the clamping strip 405.

[0067] In this embodiment, the second electric telescopic rod 401 and the second motor 403 are both existing technologies. The clamping bar 405 is moved upward to compress the spring 406, and one end of the waste plastic film is passed between the clamping bar 405 and the clamping frame 404. The clamping bar 405 is released, and the restoring force of the spring 406 causes the clamping bar 405 to move downward, thereby clamping and fixing the waste plastic film between the clamping bar 405 and the clamping frame 404. When the linear motor 15 drives the machine body 3 to move above the cleaning mechanism 2, the second electric telescopic rod 401 extends to allow the waste plastic film to enter the cleaning mechanism 2. The second motor 403 drives the clamping frame 404 to rotate, and the waste plastic film rotates with the clamping frame 404 in the clean water. At the same time, the second electric telescopic rod 401 repeatedly extends and retracts, and the waste plastic film rotates up and down in the water, thoroughly cleaning and removing impurities.

[0068] The cutting mechanism includes a fixed plate 701 fixed at the upper front of the crusher body 6. A third motor 702 is fixed to the front end of the fixed plate 701, and the output end of the third motor 702 is connected to the rear end of the fixed plate 701. A circular plate 703 is keyed to the output end of the third motor 702. The front end of the circular plate 703, away from the center, is keyed to the output end of the third motor 702. A single-hole rotating plate 704 is fixedly connected to the rear end of the circular plate 703, away from the center. A first double-hole rotating plate 705 is rotatably connected to one end of the single-hole rotating plate 704 away from the circular plate 703. A three-hole rotating plate 706 is rotatably connected to one end of the first double-hole rotating plate 705 away from the single-hole rotating plate 704. A fixed plate is inserted through the center of the three-hole rotating plate 706. A short rod on the fixed plate 701, a three-hole rotating plate 706 rotates around the short rod as the center, a second double-hole rotating plate 707 is rotatably connected to the end of the three-hole rotating plate 706 away from the first double-hole rotating plate 705, a mounting sliding block 708 is rotatably connected to the end of the second double-hole rotating plate 707 away from the three-hole rotating plate 706, a limiting groove plate 711 is fitted into the bottom of the mounting sliding block 708 in a trapezoidal shape, a connecting trapezoidal block 710 is fixed to the bottom of the limiting groove plate 711, the connecting trapezoidal block 710 is slidably connected to the trapezoidal groove opened at the rear end of the fixed plate 701, a movable ring 709 is fixed to the bottom of the connecting trapezoidal block 710, the movable ring 709 is sleeved on the circular plate 703, and an electrothermal cutting wire 712 is fixed to the top of the mounting sliding block 708.

[0069] In this embodiment, both the third motor 702 and the electrothermal cutting wire 712 are existing technologies. The cleaned and dried waste plastic film is moved above the crusher body 6 by the linear motor 15. The third motor 702 drives the circular plate 703 to rotate, and the center of rotation is different from the center of the circular plate 703, thus expanding the rotation range of the circular plate 703. The movable ring 709, limited by the trapezoidal block 710 and the trapezoidal groove, can only move linearly up and down. The movable ring 709 moves linearly up and down with the circular plate 703. The single-hole rotating plate 704 rotates with the circular plate 703. The first double-hole rotating plate 705 rotates with the single-hole rotating plate 704. The three-hole rotating plate 706 rotates with the first double-hole rotating plate 705. The three-hole rotating plate 706 rotates around the short rod on the fixed plate 701. The second double-hole rotating plate 707 rotates with the three-hole rotating plate 706. The bottom of the mounting sliding block 708 is trapezoidal, and this trapezoidal shape is aligned with the top of the limiting groove plate 711. The trapezoidal groove fits into the wall, limiting the movement trajectory of the sliding block 708. The sliding block 708 moves linearly left and right with the second double-hole rotating plate 707, while the limiting groove plate 711 moves up and down with the connecting trapezoidal block 710. This causes the sliding block 708 to move repeatedly up, down, left, and right with the limiting groove plate 711. The electrothermal cutting wire 712 moves repeatedly up, down, left, and right with the sliding block 708. During its movement, the electrothermal cutting wire 712 cuts the waste plastic film. After cutting, the plastic film falls into the crusher body 6 for complete crushing. The third motor 702 forms a linkage with multiple rotating plates, which complicates the trajectory of the electrothermal cutting wire 712, increases the cutting frequency of the electrothermal cutting wire 712, and makes the waste plastic film after the initial cut smaller in size. This reduces the crushing work of the crusher body 6, prevents excessively long waste plastic film from entangled in the internal parts of the crusher body 6, and extends the service life of the crusher body 6.

[0070] A sliding protrusion 17 is fixed at the bottom of the rear connecting plate 301. The bottom of the sliding protrusion 17 has an installation groove. A roller 18 is rotatably connected in the installation groove. A slide rail 16 is fixed between the bracket 8 and the mounting bracket 10. Both the sliding protrusion 17 and the roller 18 move within the slide rail 16.

[0071] In this embodiment, when the linear motor 15 drives the front connecting plate 301 to move, the top plate 302 moves with the front connecting plate 301, and the rear connecting plate 301 moves with the top plate 302. The sliding protrusion 17 moves within the slide rail 16 behind the rear connecting plate 301. The sliding protrusion 17 moves by rotating the bottom roller 18 on the bottom of the inner wall of the slide rail 16. The roller 18 reduces the friction between the sliding protrusion 17 and the slide rail 16, supporting the body 3 while making the connecting plate 301 move more smoothly and flexibly.

[0072] The drying mechanism 5 includes a first blower 501 fixed to the top of the mounting frame 10 by bolts. Sloping bottom air ducts 503 are symmetrically fixed on both sides of the top plate 302. The output end of the first blower 501 is connected to the two sloping bottom air ducts 503 through a double outlet air duct 502.

[0073] In this embodiment, the first blower 501 is existing technology, and both outlet air ducts 502 are corrugated air ducts that can deform to adapt to the position changes of the inclined bottom air duct 503. The air outlets of both inclined bottom air ducts 503 are aligned with the vertical horizontal line where the clamping frame 404 is located. After the first blower 501 is running, it blows air out through the double outlet air ducts 502 and the inclined bottom air duct 503 in sequence, drying the waste film on the water surface after cleaning, preventing residual water from entering the crusher body 6 and causing damage to the easily rusted metal and electronic components inside, thus extending the service life of the crusher body 6.

[0074] The cleaning mechanism 2 includes a water-holding frame 201. A water outlet is provided on the right side of the inner wall of the water-holding frame 201. A metal mesh 202 is fixed inside the water outlet. The water inlet of a butterfly valve 204 is connected to the right side of the water outlet. The flange of the butterfly valve 204 is connected to the lower part of the outer wall of the water-holding frame 201. A drain pipe 203 is connected to the flange of the outlet of the butterfly valve 204. A sedimentation mechanism 1 is provided at the bottom of the water-holding frame 201.

[0075] In this embodiment, with the butterfly valve 204 closed and the sedimentation bottom frame 106 tightly sealed at the bottom of the water-holding frame 201, clean water is added to the water-holding frame 201 for cleaning the waste plastic film. After cleaning, the second electric telescopic rod 401 retracts, causing the waste plastic film to leave the water-holding frame 201. At this time, wait for the impurities in the water to settle to the sedimentation bottom frame 106. The water outlet is located above the sedimentation bottom frame 106. After sedimentation, connect the external sewage pipe to the drain pipe 203 and open the butterfly valve 204. The sewage is discharged after passing through the metal mesh 202, the butterfly valve 204, and the drain pipe 203 in sequence, without the need for manual water emptying.

[0076] The sedimentation mechanism 1 includes a base 101, a first electric telescopic rod 102 fixed to the top of the base 101, an installation component 103 fixed to the top of the first electric telescopic rod 102, a first motor 104 fixed to the front end of the installation component 103, a rotating connecting rod 105 fixed to the output end of the first motor 104, a sedimentation bottom frame 106 fixed to the top of the rotating connecting rod 105, the sedimentation bottom frame 106 can slide at the bottom of the inner wall of the water holding frame 201, and a sealing layer is provided between the sedimentation bottom frame 106 and the water holding frame 201, and the sealing layer is fixedly connected to the sedimentation bottom frame 106.

[0077] In this embodiment, the first electric telescopic rod 102 and the first motor 104 are both existing technologies. When the filter frame 1104 is located to the lower right of the sedimentation bottom frame 106, the first electric telescopic rod 102 retracts, causing the sedimentation bottom frame 106 to detach from the bottom of the water-holding frame 201. The first motor 104 drives the rotating connecting rod 105 to rotate, and the water-holding frame 201 rotates clockwise with the rotating connecting rod 105, pouring the sedimented debris into the filter frame 1104. The sedimentation mechanism 1 and the cleaning mechanism 2 achieve solid-liquid separation of sewage, realizing the preliminary treatment of sewage and avoiding blockage of the sewage drainage system of the waste film crushing workshop.

[0078] The sedimentation bottom frame 106 has a sliding groove on the front and rear sides of its inner wall. A push plate 107 is slidably connected in the sliding groove. The push plate 107 and the sedimentation bottom frame 106 are slidably connected by a rotating wheel 108.

[0079] In this embodiment, the push plate 107 is made of solid stainless steel. When the sedimentation bottom frame 106 is tilted, the push plate 107 slides to the lower right inside the sedimentation bottom frame 106. During the sliding process, the wheel 108 rotates in the groove to reduce friction and accelerate the movement of the push plate 107. The push plate 107 pushes the debris in the sedimentation bottom frame 106 to enter the filter frame 1104 more quickly, so that the debris is dumped more thoroughly.

[0080] A transmission mechanism 11 is located on the right side below the sedimentation base frame 106. The transmission mechanism 11 includes a fourth motor 1101. A lead screw 1102 is fixed to the output end of the fourth motor 1101. A slider 1103 is threaded onto the lead screw 1102. There are two sliders 1103, which are distributed front and back. A sliding rod 1108 is inserted inside the rear slider 1103. Positioning plates 1109 are fixed at the corresponding positions on the left and right ends of the sliding rod 1108 and the lead screw 1102. A filter frame 1104 is fixed to the top of the two sliders 1103. A limit strip 1105 is fixed inside the filter frame 1104. A filter screen 1106 is placed on the limit strip 1105. Magnetic blocks 1107 are fixed to the left and right sides of the top of the filter screen 1106.

[0081] In this embodiment, the fourth motor 1101 is existing technology. When the filter frame 1104 is located on the left and right positioning plates 1109, it corresponds to the lower right of the sedimentation bottom frame 106 and directly below the fixed cover 1201, respectively. The fourth motor 1101 drives the lead screw 1102 to rotate. The slide rod 1108 limits the front slide block 1103 through the rear slide block 1103 and the filter frame 1104 to prevent it from rotating with the lead screw 1102, so that the front slide block 1103 and the lead screw 1102 achieve threaded transmission. The slide block 1103 moves left and right in a straight line. The filter frame 1104 moves left and right with the slide block 1103 to different processing step areas. The filter screen 1106 is placed on the limiting strip 1105 to filter out excess mud and water, and the filter screen 1106 can be removed from the filter frame 1104 to avoid manual transfer, save manpower, save time and effort, and at the same time avoid the situation where water and debris are difficult to clean during the transfer process.

[0082] A feeding mechanism 12 is located above the transmission mechanism 11. The feeding mechanism 12 includes a fixed cover 1201. A rotating door 1202 is rotatably connected to the right side of the fixed cover 1201. A fourth electric telescopic rod 1203 is fixed to the top of the inner wall of the fixed cover 1201. A connecting horizontal plate 1204 is fixed to the bottom of the fourth electric telescopic rod 1203 by bolts. Electromagnets 1205 are fixed at both ends of the bottom of the connecting horizontal plate 1204. The electromagnets 1205 are magnetically connected to the magnetic block 1107. The filter screen 1106 can contact the fixed cover 1201 and the rotating door 1202 from all sides. An air supply mechanism 13 is provided on the top of 1201. The air supply mechanism includes a connecting frame 1301 fixed between the fixed cover 1201 and the mounting bracket 10. A second blower 1302 is fixed in the connecting frame 1301 by bolts. The output end of the second blower 1302 is connected to a single outlet air duct 1303. The end of the single outlet air duct 1303 away from the second blower 1302 is fixed to the left side of the fixed cover 1201. A baffle 1304 is fixed between the single outlet air duct 1303 and the fixed cover 1201. A diversion mechanism 14 is provided between the second blower 1302 and the single outlet air duct 1303.

[0083] In this embodiment, the fourth electric telescopic rod 1203, electromagnet 1205, and second blower 1302 are all prior art. A small round hole is provided behind the fixing cover 1201 for connecting the electromagnet 1205 to an external power source. When the filter frame 1104 is directly below the fixing cover 1201, the fourth electric telescopic rod 1203 extends, bringing the electromagnet 1205 closer to the magnetic block 1107. After the bottom of the electromagnet 1205 aligns with the top of the magnetic block 1107, the electromagnet 1205 is activated, and the electromagnet 1205 and magnetic block 1107 are magnetically connected. The fourth electric telescopic rod 1203 retracts, and the connecting horizontal plate 1204 moves upward with the fourth electric telescopic rod 1203. The electromagnet 1205 moves upward with the connecting horizontal plate 1204, and the magnetic block 1107 moves upward with the electromagnet 1205. The filter screen 1106 moves upward with the magnetic block 1107 and enters the fixing cover 1201. The second blower 1302 and the fixing... With the interior of cover 1201 connected, the second blower 1302 enters the fixed cover 1201 through the through holes on the right and bottom of the three-way box 1401 and the round hole on the top of the fixed cover 1201. It blows dry the solid debris on the surface of the filter screen 1106. The baffle 1304 prevents lighter debris such as straw fragments from entering the single-outlet air duct 1303. After the debris is dried, the air outlet of the second blower 1302 is connected to the single-outlet air duct 1303 and the opening of the rotary door 1202 through the diversion mechanism 14. The external collection bag is attached to the opening of the rotary door 1202. The second blower 1302 blows the lighter debris (mostly straw and other plants) into the external collection bag for subsequent secondary use. Heavier debris such as gravel remains on the filter screen 1106 and is thrown into the soil or reused. The debris adhering to the waste is treated by wind screening to extract value, avoiding the waste from occupying the workshop's waste disposal space, which is environmentally friendly.

[0084] The diversion mechanism 14 includes a three-way box 1401. The three-way box 1401 has through holes on its left and right sides and bottom. The left through hole connects to a single-outlet duct 1303, the right through hole connects to the output end of a second blower 1302, and the bottom through hole connects to a circular hole on the top of a fixed cover 1201. A fifth motor 1402 is fixed at the lower left corner of the front end of the three-way box 1401. A first rotating shaft 1403 is fixed at the output end of the fifth motor 1402. A baffle 1404 is fixed to the first rotating shaft 1403 inside the three-way box 1401. A keyed connection is made to the first rotating shaft 1403 extending to the rear end of the three-way box 1401. A synchronous pulley 1405 is rotatably connected to a neck shaft at the upper right corner of the rear end of the fixed cover 1201. A second synchronous pulley 1407 is keyed to the neck shaft. A synchronous belt 1406 is fitted onto the first synchronous pulley 1405 and the second synchronous pulley 1407. A first gear 1408 is keyed to the neck shaft at the rear end of the second synchronous pulley 1407. The fixed cover 1201 and the rotating door 1202 are rotatably connected via a second rotating shaft 1410. The second rotating shaft 1410 is fixedly connected to the rotating door 1202. A second gear 1409 is keyed to the rear end of the second rotating shaft 1410. The first gear 1408 and the second gear 1409 mesh.

[0085] In this embodiment, the fifth motor 1402, the first synchronous pulley 1405, the synchronous belt 1406, and the second synchronous pulley 1407 are all existing technologies and will not be described in detail below. The first gear 1408 and the second gear 1409 have the same number of teeth. When it is necessary to change the air outlet of the second blower 1302 on the fixed cover 1201, the fifth motor 1402 drives the first rotating shaft 1403 and the first synchronous pulley 1405 to rotate. The baffle 1404 rotates 90° clockwise with the first rotating shaft 1403, which blocks the bottom through hole of the three-way box 1401, realizing air outlet on the left side of the fixed cover 1201. The baffle 1404 rotates 90° counterclockwise, which blocks the left through hole of the three-way box 1401, realizing air outlet on the top of the fixed cover 1201. The synchronous belt 1406 pulls the first synchronous pulley 1405. The rotation is transmitted to the second synchronous pulley 1407, the neck shaft rotates with the second synchronous pulley 1407, the first gear 1408 rotates with the neck shaft, and the first gear 1408 transmits to the second gear 1409, the second gear 1409 drives the second rotating shaft 1410 to rotate, the rotating door 1202 rotates with the second rotating shaft 1410 to open or close, when the wind blows out from the top of the fixed cover 1201, it can blow the liquid in the debris out from the bottom of the filter screen 1106, speeding up the drying speed, when the wind blows out from the left side of the fixed cover 1201, it is directly aimed at the external collection bag, so that lighter objects can enter the collection bag more accurately. Through the diversion mechanism 14, the baffle 1404 and the rotating door 1202 rotate in opposite directions almost simultaneously, realizing the change of wind direction, improving the efficiency of wind direction change, and improving the efficiency of wind power utilization.

[0086] like Figure 18As shown in this embodiment, the separation method of the agricultural waste plastic film crushing and separating device is a method of using the agricultural waste plastic film crushing and separating device, and its steps are as follows:

[0087] Step 1: Clamping, clamp the waste plastic film between the clamping strip 405 and the clamping frame 404;

[0088] Step 2: Cleaning. Pour clean water into the water-holding frame 201 until it reaches the upper 2 / 3 of the frame. The linear motor 15 drives the machine body 3 to move horizontally until the machine body 3 and the cleaning mechanism 2 are on the same vertical horizontal line. The second electric telescopic rod 401 pulls the clamped waste plastic film into the clean water. The second motor 403 drives the clamping frame 404 to rotate, while the second electric telescopic rod 401 continues to extend and retract, causing the waste plastic film to rotate and be cleaned in the clean water. The rotation speed is 50 rpm, and the cleaning time is 10 minutes.

[0089] Step 3: Remove and dry. The second electric telescopic rod 401 retracts, the waste plastic film is separated from the sewage, and the linear motor 15 drives the machine body 3 to move between the crusher body 6 and the water-holding frame 201. The first blower 501 blows air through the double-outlet air pipe 502 and the inclined bottom air duct 503 until the wet waste plastic film is dried.

[0090] Step 4: Preliminary crushing and complete crushing. The linear motor 15 drives the machine body 3 to move above the crusher body 6. The cutting mechanism 7 performs preliminary cutting on the waste plastic film. After preliminary cutting, the plastic film enters the crusher body 6 for complete crushing. The completely crushed plastic film is then recycled for secondary use.

[0091] Step 5: Sedimentation. After cleaning the waste plastic film, the wastewater settles in the water-holding frame 201 for 1.5 hours. After sedimentation, the butterfly valve 204 is opened, and the wastewater is discharged through the drain pipe 203. At this time, the fourth motor 1101 drives the lead screw 1102 to rotate. The threaded transmission between the slider 1103 and the lead screw 1102 causes the filter frame 1104 to move to the position limited by the positioning plate 1109 on the left. The first electric telescopic rod 102 retracts, the sedimentation bottom frame 106 moves down, and the first motor 104 indirectly drives the sedimentation bottom frame 106 to rotate clockwise. The push plate 107 is attracted and slides on the sedimentation bottom frame 106 towards the filter frame 1104, pushing the wastewater and debris into the filter frame 1104.

[0092] Step 6: Filtration. Impurities enter the filter frame 1104 and are separated into solid and liquid by the filter screen 1106. At the same time, the fourth motor 1101 rotates in the opposite direction to move the filter frame 1104 to the position defined by the right positioning plate 1109.

[0093] Step 7: Drying. The fourth electric telescopic rod 1203 extends, bringing the running electromagnet 1205 close to the magnetic block 1107 and attracting it. After attraction, the fourth electric telescopic rod 1203 retracts, and the filter screen 1106 enters the fixed cover 1201 from the bottom along with the magnetic block 1107. At this time, the revolving door 1202 is in the vertical closed state, and the baffle 1404 is in the vertical state, exposing the bottom through hole of the three-way box 1401. The second blower 1302 blows air through the bottom through hole of the three-way box 1401 and the top round hole of the fixed cover 1201 to dry the debris until it is completely dry.

[0094] Step 8: Screening. After drying, the fifth motor 1402 indirectly drives the baffle 1404 to rotate 90° clockwise, blocking the bottom through hole of the three-way box 1401 and exposing the left through hole. At the same time, the rotating door 1202 opens counterclockwise. The collection bag is attached to the opening of the rotating door 1202 and the fixed cover 1201. The second blower 1302 blows air through the three-way box 1401 and the single outlet air pipe 1303 in sequence, blowing the dried straw and other lighter impurities into the collection bag, while the heavier impurities such as gravel remain on the surface of the filter screen 1106. The screened straw and other lighter impurities can be reused.

[0095] The working principle of this invention is as follows: A linear motor 15 drives the waste plastic film to move to different positions for cleaning, drying, and crushing. A clamping mechanism 4 clamps the waste plastic film, a cleaning mechanism 2 cleans the clamped waste plastic film, and a drying mechanism 5 dries the film after cleaning. A cutting mechanism 7 performs preliminary cutting before the plastic film enters the crusher body 6. After preliminary cutting, the plastic film enters the crusher body 6 clean and free of debris. The clamping bar 405 moves upward to compress the spring 406, allowing one end of the waste plastic film to pass between the clamping bar 405 and the clamping frame 404. The clamping bar 405 is then released, and the restoring force of the spring 406 causes the clamping bar 405 to move downward, thus clamping and fixing the waste plastic film between the clamping bar 405 and the clamping frame 404. The butterfly valve 204 closes, and sediment settles at the bottom. With frame 106 tightly sealed at the bottom of water-filled frame 201, clean water is added to water-filled frame 201 for cleaning waste plastic film. When linear motor 15 drives machine body 3 to move above cleaning mechanism 2, second electric telescopic rod 401 extends to allow waste plastic film to enter cleaning mechanism 2. Second motor 403 drives clamping frame 404 to rotate, and waste plastic film rotates with clamping frame 404 in clean water. At the same time, second electric telescopic rod 401 repeatedly extends and retracts, and waste plastic film rotates up and down in water for thorough cleaning. When linear motor 15 drives machine body 3 to be positioned between crusher body 6 and water-filled frame 201, the air outlets of two sloping bottom air ducts 503 are aligned with the vertical horizontal line where clamping frame 404 is located. After the first blower 501 starts running, the air passes through the double outlet air ducts 50... 2. Air is discharged from the inclined bottom air duct 503 to dry the waste plastic film that has been washed and discharged from the water surface. The washed and dried waste plastic film is moved by the linear motor 15 to the top of the crusher body 6. The third motor 702 drives the circular plate 703 to rotate, and the center of rotation is different from the center of the circular plate 703, which expands the rotation range of the circular plate 703. The movable ring 709 is limited by the connection between the trapezoidal block 710 and the trapezoidal groove and can only move up and down in a straight line. The movable ring 709 moves up and down in a straight line with the circular plate 703. The single-hole rotating plate 704 rotates with the circular plate 703. The first double-hole rotating plate 705 rotates with the single-hole rotating plate 704. The three-hole rotating plate 706 rotates with the first double-hole rotating plate 705. The three-hole rotating plate 706 rotates around the short rod on the fixed plate 701. The second double-hole rotating plate 707 rotates with the three-hole rotating plate. 706 rotates, and the bottom of the mounting sliding block 708 is trapezoidal. This trapezoidal shape engages with the trapezoidal groove at the top of the limiting groove plate 711. This engagement limits the movement trajectory of the mounting sliding block 708. The mounting sliding block 708 moves linearly left and right with the second double-hole rotating plate 707. Simultaneously, the limiting groove plate 711 moves up and down with the connecting trapezoidal block 710, causing the mounting sliding block 708 to repeatedly move up, down, left, and right with the limiting groove plate 711. The electrothermal cutting wire 712 also repeatedly moves up, down, left, and right with the mounting sliding block 708. During its movement, the electrothermal cutting wire 712 cuts the waste plastic film. After cutting, the plastic film falls into the crusher body 6 for complete crushing. The wastewater in the water holding frame 201 settles to the sedimentation bottom frame 106, and the outlet is located above the sedimentation bottom frame 106.After sedimentation, connect the external sewage pipe to the drain pipe 203 and open the butterfly valve 204. The sewage will pass through the metal mesh 202, the butterfly valve 204, and the drain pipe 203 in sequence before being discharged. When the filter frame 1104 is located to the lower right of the sedimentation bottom frame 106, the first electric telescopic rod 102 retracts, causing the sedimentation bottom frame 106 to detach from the bottom of the water-holding frame 201. The first motor 104 drives the rotating connecting rod 105 to rotate, and the water-holding frame 201 rotates clockwise with the rotating connecting rod 105, pouring the sedimented debris into the filter frame 1104. When the sedimentation bottom frame 106 tilts, the push plate 107 slides to the lower right inside the sedimentation bottom frame 106. During the sliding process, the rotating wheel 108 rotates in the chute, reducing friction and accelerating the movement of the push plate 107. The push plate 107 pushes the sedimentation bottom frame. Debris inside 106 accelerates into the filter frame 1104. When the filter frame 1104 is positioned on the left and right positioning plates 1109, it corresponds to the lower right of the sedimentation bottom frame 106 and directly below the fixed cover 1201, respectively. The fourth motor 1101 drives the lead screw 1102 to rotate. The slide rod 1108 limits the front slide block 1103 through the rear slide block 1103 and the filter frame 1104, preventing it from rotating with the lead screw 1102. This allows the front slide block 1103 to achieve threaded transmission with the lead screw 1102, causing the slide block 1103 to move linearly left and right. The slide block 1103 drives the filter frame 1104 to move directly below the fixed cover 1201. The fourth electric telescopic rod 1203 extends, bringing the electromagnet 1205 close to the magnetic block 1107. The bottom of the electromagnet 1205 is close to the magnetic block 1107. After the top is aligned, electromagnet 1205 is activated, and electromagnet 1205 is magnetically connected to magnetic block 1107. The fourth electric telescopic rod 1203 retracts, and connecting horizontal plate 1204 moves upward with the fourth electric telescopic rod 1203. Electromagnet 1205 moves upward with connecting horizontal plate 1204, and magnetic block 1107 moves upward with electromagnet 1205. Filter screen 1106 moves upward with magnetic block 1107 and enters the fixed cover 1201. With the second blower 1302 connected to the inside of the fixed cover 1201, the second blower 1302 enters the fixed cover 1201 through the through holes on the right and bottom of the three-way box 1401 and the round hole at the top of the fixed cover 1201, drying solid debris on the surface of filter screen 1106. The baffle 1304 prevents lighter debris such as straw fragments from entering. Inside the single-outlet duct 1303, after the debris is dried, the air outlet of the second blower 1302 is connected to the opening of the single-outlet duct 1303 and the rotary door 1202 through the diversion mechanism 14. The fifth motor 1402 drives the first rotating shaft 1403 and the first synchronous pulley 1405 to rotate. The baffle 1404 rotates 90° clockwise with the first rotating shaft 1403, thus blocking the bottom through hole of the three-way box 1401, allowing air to exit from the left side of the fixed cover 1201. The baffle 1404 rotates 90° counterclockwise, thus blocking the left through hole of the three-way box 1401, allowing air to exit from the top of the fixed cover 1201. The synchronous belt 1406 transmits the rotation of the first synchronous pulley 1405 to the second synchronous pulley 1407. The journal shaft rotates with the second synchronous pulley 1407, and the first gear 1408 rotates with the journal shaft.Furthermore, the first gear 1408 drives the second gear 1409, which in turn drives the second rotating shaft 1410 to rotate. The rotating door 1202 rotates with the second rotating shaft 1410, attaching the external collection bag to the opening of the rotating door 1202. The second blower 1302 blows lighter debris (mostly straw and other plant matter) into the external collection bag for further secondary use, while heavier debris such as gravel remains on the filter screen 1106 and is thrown into the soil or reused.

[0096] In summary, by cleaning, drying, and initially crushing waste plastic film before it enters the crusher body, the service life of the crusher body can be improved, the crushing efficiency can be increased, and the waste plastic film can be made into cleaner raw materials for secondary use.

[0097] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An agricultural waste plastic film crushing and separating device, comprising a support frame (8) and a mounting frame (10), characterized in that, The bracket (8) and the mounting frame (10) are both fixed with support columns (9) at the bottom. A linear motor (15) is fixed between the bracket (8) and the mounting frame (10) by bolts. A connecting plate (301) is fixed at the output end of the linear motor (15). There are two connecting plates (301). A top plate (302) is integrally formed on the top of the two connecting plates (301). A clamping mechanism (4) is provided on the top plate (302). A drying mechanism (5) is provided on the side of the top plate (302). A cleaning mechanism (2) is provided on the right side below the linear motor (15). A crusher body (6) is placed on the left side below the linear motor (15). A cutting mechanism (7) is provided on the crusher body (6). The cleaning mechanism (2) includes a water holding frame (201), and a sedimentation mechanism (1) is provided at the bottom of the water holding frame (201). The sedimentation mechanism (1) includes a base (101), a first electric telescopic rod (102) is fixed to the top of the base (101), an installation part (103) is fixed to the top of the first electric telescopic rod (102), a first motor (104) is fixed to the front end of the installation part (103), a rotating connecting rod (105) is fixed to the output end of the first motor (104), a sedimentation bottom frame (106) is fixed to the top of the rotating connecting rod (105), the sedimentation bottom frame (106) can slide at the bottom of the inner wall of the water holding frame (201), and a sealing layer is provided between the sedimentation bottom frame (106) and the water holding frame (201), and the sealing layer is fixedly connected to the sedimentation bottom frame (106); A transmission mechanism (11) is provided on the right side below the sedimentation bottom frame (106). A feeding mechanism (12) is provided above the transmission mechanism (11). The feeding mechanism (12) includes a fixed cover (1201). An air supply mechanism (13) is provided on the top of the fixed cover (1201). The air supply mechanism (13) includes a connecting frame (1301) fixed between the fixed cover (1201) and the mounting frame (10). A second blower (1302) is fixed inside the connecting frame (1301) by bolts. The output end of the second blower (1302) is connected to a single outlet air duct (1303). The end of the single outlet air duct (1303) away from the second blower (1302) is fixed to the left side of the fixed cover (1201). A baffle (1304) is fixed between the single outlet air duct (1303) and the fixed cover (1201). A diversion mechanism (14) is provided between the second blower (1302) and the single outlet air duct (1303). The diversion mechanism (14) includes a three-way box (1401). Through holes are provided on the left and right sides and bottom of the three-way box (1401). The left through hole connects to a single-outlet duct (1303), the right through hole connects to the output end of the second blower (1302), and the bottom through hole connects to a circular hole on the top of the fixed cover (1201). A fifth motor (1402) is fixed at the lower left corner of the front end of the three-way box (1401). A first rotating shaft (1403) is fixed at the output end of the fifth motor (1402). A baffle (1404) is fixed at the position of the first rotating shaft (1403) inside the three-way box (1401). A first rotating shaft (1403) is keyed to the position of the first rotating shaft (1403) extending to the rear end of the three-way box (1401). A diaphragm pulley (1405) is rotatably connected to a neck shaft at the upper right corner of the rear end of the fixed cover (1201). A second diaphragm pulley (1407) is keyed to the neck shaft. A diaphragm belt (1406) is fitted onto the first diaphragm pulley (1405) and the second diaphragm pulley (1407). A first gear (1408) is keyed to the neck shaft at the rear end of the second diaphragm pulley (1407). The fixed cover (1201) and the rotating door (1202) are rotatably connected by a second rotating shaft (1410). The second rotating shaft (1410) is fixedly connected to the rotating door (1202). A second gear (1409) is keyed to the rear end of the second rotating shaft (1410). The first gear (1408) and the second gear (1409) mesh.

2. The agricultural waste plastic film crushing and separation device according to claim 1, characterized in that, The clamping mechanism (4) includes a second electric telescopic rod (401), a mounting frame (402) is fixed at the bottom of the second electric telescopic rod (401), a second motor (403) is fixed inside the mounting frame (402), and the output end of the second motor (403) is connected to the bottom of the mounting frame (402). The output end of the second motor (403) is key-connected to a clamping frame (404). Slide grooves are provided on both the left and right sides of the clamping frame (404), and clamping strips (405) are inserted in the slide grooves. Springs (406) are fixed to the top of the inner wall of the clamping frame (404) and the clamping strips (405). The cutting mechanism (7) includes a fixed plate (701) fixed at the upper front of the crusher body (6). A third motor (702) is fixed at the front end of the fixed plate (701), and the output end of the third motor (702) is connected to the rear end of the fixed plate (701). A circular plate (703) is keyed to the output end of the third motor (702). The front end of the circular plate (703) away from the center is keyed to the output end of the third motor (702). A single-hole rotating plate (704) is fixedly connected to the rear end of the circular plate (703) away from the center. A first double-hole rotating plate (705) is rotatably connected to the end of the single-hole rotating plate (704) away from the circular plate (703). A three-hole rotating plate (706) is rotatably connected to the end of the first double-hole rotating plate (705) away from the single-hole rotating plate (704). A fixed plate is inserted through the center of the three-hole rotating plate (706). A short rod is fixed on a fixed plate (701). A three-hole rotating plate (706) rotates around the short rod. A second double-hole rotating plate (707) is rotatably connected to the end of the three-hole rotating plate (706) away from the first double-hole rotating plate (705). A mounting sliding block (708) is rotatably connected to the end of the second double-hole rotating plate (707) away from the three-hole rotating plate (706). A limit groove plate (711) is fitted into the bottom of the mounting sliding block (708) in a trapezoidal shape. A connecting trapezoidal block (710) is fixed to the bottom of the limit groove plate (711). The connecting trapezoidal block (710) is slidably connected to the trapezoidal groove opened at the rear end of the fixed plate (701). A movable ring (709) is fixed to the bottom of the connecting trapezoidal block (710). The movable ring (709) is sleeved on the circular plate (703). An electric heating cutting wire (712) is fixed to the top of the mounting sliding block (708).

3. The agricultural waste plastic film crushing and separation device according to claim 1, characterized in that, The bottom of the connecting plate (301) is fixed with a sliding protrusion (17). The bottom of the sliding protrusion (17) is provided with an installation groove. A roller (18) is rotatably connected in the installation groove. A slide rail (16) is fixed between the bracket (8) and the mounting bracket (10). The sliding protrusion (17) and the roller (18) both move in the slide rail (16).

4. The agricultural waste plastic film crushing and separation device according to claim 1, characterized in that, The drying mechanism (5) includes a first blower (501) fixed to the top of the mounting frame (10) by bolts, and sloping bottom air ducts (503) symmetrically fixed on both sides of the top plate (302). The output end of the first blower (501) is connected to the two sloping bottom air ducts (503) through a double outlet air pipe (502).

5. The agricultural waste plastic film crushing and separation device according to claim 1, characterized in that, The water-holding frame (201) has an outlet hole on the right side of its inner wall. A metal mesh (202) is fixed inside the outlet hole. The right side of the outlet hole is connected to the inlet end of a butterfly valve (204). The flange of the butterfly valve (204) is connected to the lower part of the outer wall of the water-holding frame (201). The outlet flange of the butterfly valve (204) is connected to a drain pipe (203).

6. The agricultural waste plastic film crushing and separation device according to claim 1, characterized in that, The sedimentation bottom frame (106) has a sliding groove on the front and rear sides of its inner wall. A push plate (107) is slidably connected in the sliding groove. The push plate (107) and the sedimentation bottom frame (106) are slidably connected by a wheel (108).

7. The agricultural waste plastic film crushing and separation device according to claim 1, characterized in that, The transmission mechanism (11) includes a fourth motor (1101), a lead screw (1102) is fixed at the output end of the fourth motor (1101), a slider (1103) is threaded onto the lead screw (1102), there are two sliders (1103) distributed front and back, a slide rod (1108) is inserted inside the rear slider (1103), a positioning plate (1109) is fixed at the corresponding positions on the left and right ends of the slide rod (1108) and the lead screw (1102), a filter frame (1104) is fixed at the top of the two sliders (1103), a limit strip (1105) is fixed inside the filter frame (1104), a filter screen (1106) is placed on the limit strip (1105), and magnetic blocks (1107) are fixed on the left and right sides of the top of the filter screen (1106).

8. The agricultural waste plastic film crushing and separation device according to claim 7, characterized in that, The fixed cover (1201) is rotatably connected to the right side of the rotating door (1202). The top of the inner wall of the fixed cover (1201) is fixed with a fourth electric telescopic rod (1203). The bottom of the fourth electric telescopic rod (1203) is fixed with a connecting horizontal plate (1204) by bolts. Electromagnets (1205) are fixed at both ends of the bottom of the connecting horizontal plate (1204). The electromagnets (1205) are magnetically connected with the magnetic block (1107). The filter screen (1106) can contact the fixed cover (1201) and the rotating door (1202) from all sides.

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