A plastic film recycling and impurity separation device
By designing a plastic film recycling and impurity separation device, and using a soft liquid spray and flexible scraper assembly, the tearing problem caused by hard soil during the plastic film recycling process was solved, achieving non-destructive recycling and clean separation of the plastic film.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DRYLAND AGRI INST GANSU ACADEMY OF AGRI SCI
- Filing Date
- 2024-08-05
- Publication Date
- 2026-04-17
AI Technical Summary
In existing technologies, during the recycling process, the plastic film is prone to tearing due to direct contact between hard soil and the scraper, resulting in damage and pollution.
A plastic film recycling and impurity separation device was designed, which adopts a softening liquid spray and a flexible scraper assembly. When the scraper comes into contact with hard soil, the water pump supply system automatically sprays liquid to soften the soil, which is then scraped off by the scraper, avoiding hard contact. Combined with a winding mechanism and guide rollers, the plastic film can be recycled without damage.
It effectively avoids tearing of the mulch film, reduces residual film pollution, and achieves non-destructive recycling and clean separation of the mulch film.
Smart Images

Figure CN118874908B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of plastic film recycling technology, and specifically relates to a plastic film recycling impurity separation device. Background Technology
[0002] Mulching is a mature agricultural cultivation technique that conserves water and fertilizer, maintains humidity, effectively increases and extends the crop growing season, and ensures increased crop yields. With the continuous development of agricultural modernization, the use of mulch in rural areas has become an important means to ensure high and stable agricultural yields. Currently, agricultural mulch is widely used through manual and mechanical laying. For mulch used only for seedling cultivation, where the mulch is not damaged, existing technologies use external power vehicles to drive a winding machine to wind up the mulch, and a scraper is installed to separate the soil and impurities adhering to the surface of the mulch. However, some mulch has some dry soil with strong adhesion. If a hard scraper comes into direct contact with it, it can easily tear the mulch, causing damage. Summary of the Invention
[0003] The purpose of this invention is to provide a plastic film recycling and impurity separation device to solve the problems mentioned in the background art.
[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:
[0005] A plastic film recycling and impurity separation device includes a housing, a winding mechanism inside the housing, a mounting frame fixed on the left side of the housing, and two mounting plates slidably mounted on the mounting frame, each mounting plate being equipped with a scraping component.
[0006] The scraping assembly includes a strip plate fixed to the mounting plate. The strip plate has several linearly distributed grooves. A sliding plate is slidably disposed in the groove. A first spring is disposed between the sliding plate and the inner wall of the groove. The sliding plate is connected to a sliding rod. The sliding rod extends out of the groove and is connected to an abutment block. The abutment block has a beveled surface on its lower side. A water pipe located on the upper side of the strip plate is mounted on the mounting plate. Several water outlet assemblies corresponding to the grooves are mounted on the upper side of the water pipe.
[0007] A rectangular plate is fixed to the upper side of the mounting plate. The water outlet assembly includes a rectangular shell fixed to the upper side of the rectangular plate. The rectangular shell has a water outlet channel communicating with the water pipe inside. A nozzle is installed at the end of the water outlet channel. A sealing plate is slidably provided inside the rectangular shell. A linkage component is provided between the sealing plate and the sliding plate.
[0008] A scraper is mounted on the upper side of the mounting plate.
[0009] The winding mechanism includes a motor mounted on the rear side of the housing, and the output shaft of the motor extends out of the housing and is connected to a winding frame.
[0010] A bracket is installed on the left side of the housing, located on the upper side of the mounting frame, and a guide roller is rotatably mounted on the bracket.
[0011] A water tank is installed on the rear side of the mounting bracket, and a water pump is installed inside the water tank. The output end of the water pump is connected to the water pipe through a flexible hose.
[0012] The linkage component includes a through groove on the lower side of the rectangular plate, a movable shaft that slides in the through groove, the upper end of the movable shaft being connected to the sealing plate, a second spring being provided between the lower side of the sealing plate and the bottom wall of the through groove, a trapezoidal block being connected to the lower end of the movable shaft, and a top block that abuts against the trapezoidal block being fixed to the upper end of the sliding plate.
[0013] The mounting bracket has a sliding groove on its rear side, and two sliders that slide in the sliding groove are fixed on the rear side of the two mounting plates. A rotating shaft is rotatably assembled in the sliding groove. Two threaded segments with opposite directions are machined on the left and right sides of the rotating shaft. The two sliders are threadedly connected to the two threaded segments respectively. A handle is connected to the left end of the rotating shaft.
[0014] A gear is rotatably mounted on the lower side of the mounting bracket, and a guide frame is installed at the center of the gear. A rack that meshes with the gear is fixed on the lower side of the mounting plate on the right side.
[0015] When the contact block encounters hard soil, the present invention can automatically spray out liquid to soften it. Then, when the mulch film passes over the scraper on the upper side, the scraper can scrape off the hard soil, avoiding the scraper from making hard contact with the hard soil and causing the mulch film to tear, thus preventing the torn mulch film from falling into the soil and causing pollution. Attached Figure Description
[0016] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the plastic film recycling and impurity separation device of the present invention. Figure 1 ;
[0018] Figure 2 This is a schematic diagram of the structure of an embodiment of the plastic film recycling and impurity separation device of the present invention. Figure 2 ;
[0019] Figure 3 This is a cross-sectional structural schematic diagram of an embodiment of a plastic film recycling and impurity separation device according to the present invention;
[0020] Figure 4 for Figure 3 Enlarged structural diagram at point A;
[0021] Figure 5 for Figure 4 Enlarged structural diagram at point B;
[0022] Figure 6 This is a schematic diagram of the scraping component of the present invention.
[0023] The symbols for the main components are explained below:
[0024] 1. Housing 1, Motor 11, Rewinding rack 12, Bracket 13, Guide roller 14, Mounting rack 2, Slide 201, Rotating shaft 202, Threaded section 203, Handle 204, Mounting plate 21, Scraper 211, Strip plate 22, Slide 23, Slide plate 24, First spring 25, Slide rod 251, Abutting block 26, Water pipe 3, Water tank 301, Rectangular plate 31, Rectangular shell 32, Water outlet channel 33, Nozzle 34, Sealing plate 35, Through groove 351, Movable shaft 352, Second spring 353, Trapezoidal block 354, Top block 355, Gear 4, Guide frame 41, Rack 42. Detailed Implementation
[0025] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0026] like Figure 1-6 As shown, a plastic film recycling impurity separation device of the present invention includes a housing 1, a winding mechanism is provided inside the housing 1, an installation frame 2 is fixed on the left side of the housing 1, and two left and right distributed installation plates 21 are slidably assembled inside the installation frame 2, and both installation plates 21 are provided with scraping components.
[0027] The scraping assembly includes a strip plate 22 fixed by a mounting plate 21. The strip plate 22 is provided with several linearly distributed grooves 23. A sliding plate 24 is slidably arranged in the grooves 23. A first spring 25 is provided between the sliding plate 24 and the inner wall of the groove 23. The sliding plate 24 is connected to a sliding rod 251. The sliding rod 251 extends out of the groove 23 and is connected to an abutment block 26. The abutment block 26 has a beveled surface on its lower side. A water pipe 3 located on the upper side of the strip plate 22 is installed on the mounting plate 21. Several water outlet components corresponding to the grooves 23 are installed on the upper side of the water pipe 3.
[0028] A rectangular plate 31 is fixed on the upper side of the mounting plate 21. The water outlet assembly includes a rectangular shell 32 fixed on the upper side of the rectangular plate 31. The rectangular shell 32 has a water outlet channel 33 that communicates with the water pipe 3 inside. A nozzle 34 is installed at the end of the water outlet channel 33. A sealing plate 35 is slidably provided inside the rectangular shell 32. A linkage component is provided between the sealing plate 35 and the sliding plate 24.
[0029] A scraper 211 is installed on the upper side of the mounting plate 21.
[0030] A water tank 301 is installed on the rear side of the mounting bracket 2. A water pump is installed inside the water tank 301. The output end of the water pump is connected to the water pipe 3 through a flexible hose.
[0031] The water pump can transport the liquid inside the water tank 301 to the water pipe, so that the water pipe maintains a certain water pressure. When the water outlet channel 33 is opened, the liquid inside the water pipe will be sprayed out from the nozzle 34.
[0032] In the initial state, several abutting blocks 26 on the same side are in contact with each other to form the first impurity and soil scraping plate, which corresponds to the scraper 211 above. The scraper 211 above the abutting blocks 26 is the second impurity and soil scraping plate.
[0033] In use, the housing 1 is fixed on an external power vehicle, and the end of the mulch film to be recycled is pulled to the winding mechanism inside the housing 1. Then the external power vehicle moves along the mulch film laying direction, and at the same time the winding mechanism works to roll the mulch film into the housing 1 for recycling.
[0034] When the plastic film is rolled up, it passes through the scraping components on two mounting plates 21. The two mounting plates 21 are brought close together, so that the abutment blocks 26 on both sides and the scraper 211 are also close together, which can scrape off the impurities and soil attached to the plastic film. That is, the first impurity and soil scraping plate formed by several abutment blocks 26 on the lower side abuts against both sides of the plastic film. Some loose soil attached to the surface of the plastic film can be scraped off directly by the abutment blocks 26. If some hard soil is attached to the surface of the plastic film, the lower side of the corresponding abutment block 26 will contact it and push the abutment block 26 to slide away from the plastic film. Then the slide plate 24 will... The sliding within the chute 23 compresses the first spring 25. When the slide plate 24 slides, the linkage component drives the sealing plate 35 to move, opening the corresponding water outlet channel 33. The liquid in the water pipe 3 is sprayed onto the surface of the mulch film through the nozzle 34 and comes into contact with the hard soil, softening it. Thus, whenever the contact block 26 encounters hard soil, it can automatically spray out liquid to soften it. Subsequently, when the mulch film passes over the scraper 211 on the upper side, the scraper 211 can scrape off the hard soil, avoiding the scraper 211 from making hard contact with the hard soil and causing the mulch film to tear, thus preventing the torn film residue from falling into the soil and causing pollution.
[0035] The winding mechanism includes a motor 11 mounted on the rear side of the housing 1. The output shaft of the motor 11 extends out of the housing 1 and is connected to a winding frame 12. In use, the end of the mulch film is first fixed on the winding frame 12, and the motor 11 drives the winding frame 12 to rotate, thereby realizing the recycling of the mulch film.
[0036] A bracket 13 is installed on the left side of the housing 1, located on the upper side of the mounting frame 2. A guide roller 14 is rotatably mounted on the bracket 3. The guide roller 14 can guide the mulch film and reduce the pulling on the mulch film.
[0037] The linkage component includes a through groove 351 on the lower side of a rectangular plate 31, a movable shaft 352 that slides within the through groove 351, an upper end of the movable shaft 352 that is connected to a sealing plate 35, a second spring 353 that is provided between the lower side of the sealing plate 35 and the bottom wall of the through groove 351, a trapezoidal block 354 that is connected to the lower end of the movable shaft 352, and a top block 355 that abuts against the trapezoidal block 354 that is fixed to the upper end of the sliding plate 24.
[0038] The elastic force of the first spring 25 is greater than that of the second spring 353. In the initial state, the sealing plate 35 completely blocks the water outlet channel 33. When the abutment block 26 comes into contact with a hard object, it can push the object away from the mulch film, thereby causing the top block 355 to slide. The trapezoidal block 354 is pushed downward by the elastic force of the second spring 353, causing the sealing plate 35 to move downward and opening the water outlet channel 33. When the abutment block 36 leaves the hard object, the first spring 25 can push the abutment block 26 to reset, thereby causing the top block 355 to reset and pushing the trapezoidal block 354 to move upward and reset, causing the sealing plate 35 to move upward and block the water outlet channel 33. This achieves automatic spraying of liquid into hard soil, reducing its adhesion to the mulch film and achieving the separation of impurities from the mulch film.
[0039] The mounting bracket 2 has a slide groove 201 on the rear side. Both mounting plates 21 have sliders that slide in the slide groove 201 on the rear side. A rotating shaft 202 is rotatably assembled in the slide groove 201. Two threaded segments 203 with opposite thread directions are machined on the left and right sides of the rotating shaft 202. The two sliders are threadedly connected to the two threaded segments 203 respectively. A handle 204 is connected to the left end of the rotating shaft 202.
[0040] When the worker pulls the end of the mulch film into the housing 1, the worker can rotate the handle 204 to drive the rotating shaft 202 to rotate, so that the two mounting plates 21 move away from each other, that is, the scraping components move away from each other, leaving space for the mulch film to pass through. After the mulch film is pulled, the worker can rotate it in the opposite direction to drive the two mounting plates 21 to move relative to each other, so that the scraping components come into contact with the mulch film and separate the impurities on the mulch film. This makes it convenient for the worker to pull the mulch film.
[0041] The mounting bracket 2 is rotatably fitted with a gear 4 on its lower side. A guide bracket 41 is installed at the center of the gear 4. A rack 42 that meshes with the gear 31 is fixed on the lower side of the right mounting plate 21.
[0042] When the two mounting plates 21 are far apart, the guide frame 41 is set horizontally and will not obstruct the traction of the mulch film. When the two mounting plates 21 are close to each other, the rack 42 drives the gear 4 to rotate, causing the guide frame 41 to flip to a vertical state. When the mulch film moves upward, its two sides can contact the guide frame 41. If the mulch film curls up on both sides, it can be guided by the guide frame 41 to unfold the mulch film on both sides.
[0043] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.
Claims
1. A mulch film recycling impurity separation apparatus comprising a housing, characterised in that: The housing is equipped with a winding mechanism inside, and a mounting frame is fixed on the left side of the housing. Two mounting plates are slidably assembled inside the mounting frame, and both mounting plates are equipped with scraping components. The scraping assembly includes a strip plate fixed to the mounting plate. The strip plate has several linearly distributed grooves. A sliding plate is slidably disposed in the groove. A first spring is disposed between the sliding plate and the inner wall of the groove. The sliding plate is connected to a sliding rod. The sliding rod extends out of the groove and is connected to an abutment block. The abutment block has a beveled surface on its lower side. A water pipe located on the upper side of the strip plate is mounted on the mounting plate. Several water outlet assemblies corresponding to the grooves are mounted on the upper side of the water pipe. A rectangular plate is fixed to the upper side of the mounting plate. The water outlet assembly includes a rectangular shell fixed to the upper side of the rectangular plate. The rectangular shell has a water outlet channel communicating with the water pipe inside. A nozzle is installed at the end of the water outlet channel. A sealing plate is slidably arranged inside the rectangular shell. A linkage component is provided between the sealing plate and the sliding plate. A scraper is installed on the upper side of the mounting plate; The linkage component includes a through groove on the lower side of the rectangular plate, a movable shaft slidably disposed in the through groove, the upper end of the movable shaft being connected to the sealing plate, a second spring being disposed between the lower side of the sealing plate and the bottom wall of the through groove, a trapezoidal block being connected to the lower end of the movable shaft, and a top block being fixed to the upper end of the sliding plate and abutting against the trapezoidal block. The elastic force of the first spring is greater than that of the second spring.
2. The impurity separation device for plastic film recycling according to claim 1, characterized in that: The winding mechanism includes a motor mounted on the rear side of the housing, and the output shaft of the motor extends out of the housing and is connected to a winding frame.
3. The impurity separation device for plastic film recycling according to claim 1, characterized in that: A bracket is installed on the left side of the housing, located on the upper side of the mounting frame, and a guide roller is rotatably mounted on the bracket.
4. The impurity separation device for plastic film recycling according to claim 1, characterized in that: A water tank is installed on the rear side of the mounting bracket, and a water pump is installed inside the water tank. The output end of the water pump is connected to the water pipe through a flexible hose.
5. The impurity separation device for plastic film recycling according to claim 1, characterized in that: The mounting bracket has a sliding groove on its rear side, and two sliders that slide in the sliding groove are fixed on the rear side of the two mounting plates. A rotating shaft is rotatably assembled in the sliding groove. Two threaded segments with opposite directions are machined on the left and right sides of the rotating shaft. The two sliders are threadedly connected to the two threaded segments respectively. A handle is connected to the left end of the rotating shaft.
6. The impurity separation device for plastic film recycling according to claim 5, characterized in that: A gear is rotatably mounted on the lower side of the mounting bracket, and a guide frame is installed at the center of the gear. A rack that meshes with the gear is fixed on the lower side of the mounting plate on the right side.
Citation Information
Patent Citations
Agricultural mulching film environment-friendly recycling machining equipment
CN113352502A
Impurity removing device of mulching film recycling machine
CN214545402U