Plastic film residue recycling and granulating all-in-one machine

Abstract

The invention discloses a plastic film residue recycling and granulating all-in-one machine, and relates to the technical field of agricultural machinery. Comprising a rack, a film lifting mechanism arranged at the bottom of one side of the rack, a film picking mechanism obliquely arranged on the rack and matched with the film lifting mechanism, and a film removing mechanism arranged on the rack and matched with the top of the film picking mechanism. The array electric dust removal system is arranged on the rack and is matched with the demolding mechanism; the granulation mechanism is arranged on the rack and is matched with the array electric dust removal system; a transverse laser cutting mechanism for cutting the residual film into transverse long strips is arranged at the conversion position of the film picking mechanism and the film removing mechanism, and a longitudinal laser cutting mechanism for longitudinally cutting the residual film into small blocks is arranged on the portion, located above the film removing mechanism, of the rack. According to the invention, through the interaction of the residual film diaphragm and the laser cutting mechanism, a large mulching film is cut into diaphragms with proper sizes, and the preparation work before granulation is completed.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and more specifically to the field of an integrated machine for recycling and granulating residual film. Background Technology

[0002] Mulching technology offers benefits such as water and fertilizer retention, pest and disease control, and increased crop yield. However, if the mulch is not promptly recycled after crop maturity, harmful substances can accumulate in the soil, leading to a series of negative consequences, including reduced crop yield and harm to human health. Currently, the most effective way to address this issue is through post-harvest film recycling machines. The recycled film is then transported to a plastics factory where it is melted down into plastic granules for reuse. Existing patents disclose the following technologies: The patent with publication number CN117656300A, entitled "A Residual Film Anhydrous Cleaning and Granulation Device," discloses the following: A residual film anhydrous cleaning and granulation device includes a residual film crushing device, a crushed residual film screening device, a film conveying device, and a residual film granulation device installed sequentially. A rotating shaft drives the moving blades to rotate. Residual film fragments enter the granulation cylinder through the feed inlet. The residual film fragments are crushed by the cooperation of the moving blades and the fixed blades. When the moving blades rotate, the residual film fragments fill the gaps between the moving blades and the fixed blades, as well as between the moving blades and the limiting grinding block. When the moving blades rotate, the residual film fragments generate high temperatures through continuous friction between the limiting grinding block and the fixed blades, causing the residual film fragments to form granules after heating, thus completing the residual film fragment granulation operation. This solution reduces the unit power consumption of the residual film granulation equipment by omitting the design of heating equipment. At the same time, the moving blades perform secondary cutting processing on the residual film fragments recovered from the previous stage, making the particle size of the residual film fragments smaller. Therefore, after friction-generated heat granulation, the quality of the recovered residual film granules is improved compared to the previous stage.

[0003] Patent publication number CN104494000A, entitled "A Method for Treating Waste Agricultural Mulch Film," discloses the following: A method for treating waste agricultural mulch film. The method mainly includes: 1. Using a film-raking machine or machinery equipped with film-raking teeth to recycle residual film, selecting 1-2 types of film-raking machines or film-raking teeth suitable for local use to achieve a film recycling rate of over 90%; 2. Processing and granulating the recycled film, thus finding a technology for recycling waste agricultural mulch film. The method provided by this invention solves the problems of low recycling rates of agricultural chemical waste and serious "white pollution," realizing resource recycling and sustainable development, effectively improving the agricultural ecological environment, increasing crop yields, protecting arable land, and achieving clean agricultural production, with excellent results.

[0004] Current residual film recycling processes suffer from problems such as long recycling times and high transportation costs. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned technical problems by providing an integrated machine for residual film recycling and granulation. It has the function of slicing and granulating residual film during the residual film recycling process.

[0006] To achieve the above objectives, the present invention specifically adopts the following technical solution: The present invention provides an integrated machine for recycling and granulating residual film, including a frame, a film-raising mechanism disposed at the bottom of one side of the frame, a film-picking mechanism disposed at an incline on the frame and cooperating with the film-raising mechanism, a film-removing mechanism disposed on the frame and cooperating with the top of the film-picking mechanism, an array electrostatic precipitator system disposed on the frame and cooperating with the film-removing mechanism, and a granulation mechanism disposed on the frame and cooperating with the array electrostatic precipitator system. The transition point between the film picking mechanism and the film stripping mechanism is equipped with a transverse laser cutting mechanism that cuts the residual film into transverse strips, and a longitudinal laser cutting mechanism that cuts the residual film into small pieces is installed on the frame above the film stripping mechanism.

[0007] Specifically, through the interaction between the residual film sheet and the laser cutting mechanism, a large amount of mulch film is cut into film sheets of appropriate size, completing the preparation work before granulation.

[0008] In one embodiment, the frame includes two support plates arranged side by side, a connecting rod that fixes the two support plates together, and a transverse support plate for placing accessories; The film-forming mechanism is located between the bottom rear ends of the two support plates. The film-forming mechanism includes a transverse film-forming rod fixedly connected between the bottom rear ends of the two support plates and a number of film-forming nails evenly spaced along the axial direction on the transverse film-forming rod. Each film-forming nail is a wedge-shaped tooth, and each wedge-shaped tooth faces forward.

[0009] In one embodiment, the film pickup mechanism includes a film pickup roller and several film pickup chains that are laterally movable between the bottoms of two support plates. Several annular lower film pickup grooves are provided at equal intervals along the axial direction on the outer surface of the film pickup roller. The demolding mechanism is laterally movable between the tops of the two support plates. The outer surface of the demolding roller is provided with several sets of annular demolding spikes at equal intervals along the axial direction, and several annular upper film-forming grooves are provided at equal intervals along the axial direction. The several sets of annular demolding spikes and several annular upper film-forming grooves are arranged alternately along the axial direction of the demolding roller. The number of annular lower film-forming grooves, annular upper film-forming grooves, and film-picking chains are the same, and the positions of the annular lower film-forming grooves, annular upper film-forming grooves, and film-picking chains in the same group correspond to each other; one end of the film-picking chain in the same group is wrapped inside the annular lower film-forming groove, and the other end of the film-picking chain is wrapped inside the annular upper film-forming groove. Each film-picking chain has several film-lifting pin teeth evenly distributed on its outer surface. The highest height of the film-lifting pin teeth is lower than the lowest height of the annular demolding pin tooth assembly.

[0010] Specifically, the film-collecting chain is wound around the film-collecting roller and the film-removing roller, and is driven by the rotation of the film-collecting roller. The film-collecting roller and the film-removing roller are arranged vertically on the frame, and both can rotate.

[0011] During operation, because the demolding pins of the demolding roller are higher than the picking pins of the film-picking chain, when the mulch is conveyed to the demolding roller, it will be stretched and lifted, detaching from the picking pins of the film-picking chain and being picked up by the demolding pins on the demolding roller. During this lifting process, the mulch sweeps across the laser emitted by the transverse laser emitter and is cut into strips. After cutting, the stretched mulch is relaxed, and the above process is repeated. When the film strip, which has been cut by the laser emitted by the transverse laser emitter, passes the top of the demolding roller, it will sweep across the longitudinal laser cutting bar, cutting the strip into appropriate sizes.

[0012] In one embodiment, the transverse laser cutting mechanism includes two laser cutting units symmetrically arranged on two support plates; Each laser cutting unit includes a power supply installed on the outside of the corresponding support plate and a rotating conductive assembly installed on the outside of the support plate that periodically conducts to the power supply. The rotating conductive assembly includes a transverse laser emitter, and each transverse laser emitter is positioned above the film pickup chain.

[0013] In one embodiment, the longitudinal laser cutting mechanism includes a longitudinal laser cutting rod fixedly disposed between two support plates and longitudinal laser emitters spaced apart on the longitudinal laser cutting rod; the longitudinal laser cutting rod is located above the demolding roller.

[0014] In one embodiment, the array electrostatic precipitator system includes a dust removal trough that is horizontally fixed between two support plates. The dust removal trough is located below the demolding roller. A demolding scraper is inclinedly arranged at the top of the dust removal trough near the demolding roller. The top of the demolding scraper is spaced by multiple demolding gaps that cooperate with multiple sets of annular demolding nail tooth assemblies. Multiple fans are horizontally spaced at the bottom of the dust removal trough near the demolding roller. Multiple electrostatic precipitators are horizontally spaced on the side of the dust removal trough away from the demolding roller.

[0015] In one embodiment, the electrostatic precipitator cylinder includes a dust collection roller and a filter screen sleeved outside the dust collection roller. The filter screen is cylindrical and connected to the negative terminal of the power supply. The dust collection roller is located on the axis of the filter screen and connected to the positive terminal of the power supply. The filter screen has small holes with a pore size smaller than the size of the residual film after cutting.

[0016] Specifically, after the diaphragm is carried by the stripping roller past the stripping scraper, it falls in front of the blower. The blower blows the diaphragm through the electrostatic precipitator array, which consists of a series of horizontally arranged electrostatic precipitator cylinders. Each cylinder consists of a filter screen and a dust collection roller. The filter screen is cylindrical and connected to the negative terminal of the power supply, carrying a negative charge. The dust collection roller is located at the center of the filter screen and connected to the positive terminal of the power supply, carrying a positive charge. When dust passes through the filter screen, it becomes polarized and carries a negative charge, gathering towards the dust collection roller under the influence of the electric field. Meanwhile, the diaphragm continues to advance into the granulation mechanism under the action of the blower. The filter screen has small holes, allowing dust to pass through but not enough to allow the diaphragm to pass through.

[0017] In one embodiment, the granulation mechanism includes a hot melt box fixed on a frame, an extrusion roller pair disposed at the outlet of the hot melt box, a collection trough disposed below the outlet of the hot melt box, an electric motor disposed on the outer wall of the hot melt box or on the frame for driving the extrusion roller pair to rotate, and a power supply for supplying power to the electric motor.

[0018] Specifically, the hot melt box is mounted on the frame, the extrusion rollers are located at the outlet below the hot melt box, the power supply is mounted on the frame, the motor is mounted on the frame, and the collection tank is mounted on the frame, located directly below the extrusion rollers. The collection tank can be a box or other container.

[0019] In one embodiment, the extrusion roller pair includes two extrusion rollers rotating in opposite directions, each extrusion roller having extrusion forming grooves evenly distributed around its circumference.

[0020] During operation, after the cut film is removed from the teeth on the stripping roller by the stripping scraper, it is powered by a fan and passes through the array electrostatic precipitator to remove dust before falling into the hot melt box. Under the heating of the hot melt box connected to the power supply, it melts into a liquid state and falls into the extrusion rollers. It is then squeezed into plastic granules by the grooves on the extrusion rollers and falls into the collection tank.

[0021] In one embodiment, a traveling mechanism is provided at the bottom of the frame. The traveling mechanism includes a ground wheel assembly located at the rear end of the bottom of the frame and a depth-limiting wheel assembly located at the front end of the bottom of the frame. The ground wheel assembly is coaxially connected to the film pickup roller.

[0022] Specifically, the film pickup roller rotates along with the ground wheel assembly, thereby driving the film pickup chain transmission.

[0023] The beneficial effects of this invention are as follows: 1. This invention utilizes the interaction between residual film sheets and a laser cutting mechanism to cut large-format plastic film into appropriately sized sheets, thus completing the preparatory work before granulation.

[0024] 2. In this invention, after the plastic film is separated from the ground by a film-lifting shovel, the film-lifting nails pick up the film, and under the action of the film-lifting roller, the film is turned over, completing the cleaning work before plastic granulation. When the film moves to the film-removing roller with the film-lifting nails, because the outer edge of the film-removing roller is higher than the tips of the film-lifting nails, the film will detach from the film-lifting nails and be picked up by the nails on the film-removing roller. During this process, the film is swept across the laser emitted by the transverse laser emitter, and the large film is cut into long strips. When the film-removing roller transports the film to the top, the film is swept across the longitudinal laser cutting bar, and the long strips are cut into film pieces of appropriate size. This method completes the preparation work before granulation.

[0025] 3. In this invention, a fan is installed below the residual membrane recycling section. When the membrane falls, it is blown by the fan towards the array electrostatic precipitator system. The array electrostatic precipitator system consists of multiple horizontally arranged electrostatic precipitators. The structure of the electrostatic precipitator is as follows: the electrostatic precipitator consists of a dust collection roller and a filter screen. The filter screen has small holes, which allow dust to pass through but not enough for the membrane to pass through. The dust collection roller is positively charged, and the filter screen is negatively charged. When the dust passes through the filter screen, it is polarized and becomes negatively charged. Under the action of the electric field, it gathers towards the dust collection roller, while the membrane continues to move forward under the action of the fan and enters the granulation mechanism. In this way, the preparation work before granulation is completed.

[0026] 4. This invention utilizes the interaction between the demolding spikes on the demolding roller and the demolding plate to detach the film from the demolding roller and allow it to fall into the hot melt box. The film liquefies under the high temperature of the hot melt box and is then extruded into granules by a pair of extrusion rollers, falling into a collection tank. Granulation is thus completed in this manner. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a residual film recycling and granulation integrated machine according to the present invention; Figure 2 This is a cross-sectional view of a residual film recycling and granulation integrated machine according to the present invention; Figure 3 This is a schematic diagram of the structure of an array electrostatic precipitator system; Figure 4 for Figure 3 Another view; Figure 5 This is a schematic diagram of the internal structure of the granulation mechanism; Reference numerals: 1. Frame; 2. Film lifting mechanism; 3. Film picking chain; 4. Film picking roller; 5. Film removal roller; 6. Longitudinal laser cutting rod; 7. Transverse laser emitter; 8. Film removal scraper; 9. Fan; 10. Array electrostatic precipitator system; 11. Granulation mechanism; 12. Depth limiting wheel; 13. Ground wheel; 14. Filter screen; 15. Dust collection roller; 16. Hot melt box; 17. Extrusion roller pair; 18. Collection tank; 19. Power supply; 20. Electric motor. Detailed Implementation

[0029] To make the technical problems, technical solutions, and technical effects of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0031] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0033] Example 1 like Figures 1 to 5 As shown, this embodiment provides an integrated machine for recycling and granulating residual film, including a frame 1, a film-raising mechanism 2 disposed at the bottom of one side of the frame 1, a film-picking mechanism disposed at an incline on the frame 1 and cooperating with the film-raising mechanism 2, a film-removing mechanism disposed on the frame 1 and cooperating with the top of the film-picking mechanism, an array electrostatic precipitator system 10 disposed on the frame 1 and cooperating with the film-removing mechanism, and a granulation mechanism 11 disposed on the frame 1 and cooperating with the array electrostatic precipitator system 10. The transition point between the film picking mechanism and the film stripping mechanism is equipped with a transverse laser cutting mechanism that cuts the residual film into transverse strips, and the film stripping mechanism and the frame 1 are equipped with a longitudinal laser cutting mechanism that cuts the residual film into small pieces.

[0034] Specifically, through the interaction between the residual film sheet and the laser cutting mechanism, a large amount of mulch film is cut into film sheets of appropriate size, completing the preparation work before granulation.

[0035] Example 2 like Figures 1 to 5 As shown, this embodiment provides an integrated machine for recycling and granulating residual film, including a frame 1, a film-raising mechanism 2 disposed at the bottom of one side of the frame 1, a film-picking mechanism disposed at an incline on the frame 1 and cooperating with the film-raising mechanism 2, a film-removing mechanism disposed on the frame 1 and cooperating with the top of the film-picking mechanism, an array electrostatic precipitator system 10 disposed on the frame 1 and cooperating with the film-removing mechanism, and a granulation mechanism 11 disposed on the frame 1 and cooperating with the array electrostatic precipitator system 10. A transverse laser cutting mechanism is provided at the transition point between the film picking mechanism and the film stripping mechanism to cut the residual film into transverse strips, and a longitudinal laser cutting mechanism is provided on the frame 1 above the film stripping mechanism to cut the residual film into small pieces longitudinally.

[0036] The frame 1 includes two support plates arranged side by side, a connecting rod that fixes the two support plates together, and a horizontal support plate for placing accessories (such as power supply and motor). The film-forming mechanism 2 is located between the bottom rear ends of the two support plates. The film-forming mechanism 2 includes a transverse film-forming rod fixedly connected between the bottom rear ends of the two support plates and a number of film-forming nail teeth evenly spaced along the axial direction on the transverse film-forming rod. Each film-forming nail tooth is a wedge-shaped tooth, and each wedge-shaped tooth faces forward.

[0037] The film picking mechanism includes a film picking roller 4 that is laterally movable between the bottoms of two support plates and several film picking chains 3. Several annular lower film picking grooves are evenly spaced along the axial direction on the outer surface of the film picking roller 4. The demolding mechanism is laterally movable between the tops of the two support plates. The outer surface of the demolding roller 5 is provided with several sets of annular demolding spikes at equal intervals along the axial direction. The outer surface of the demolding roller 5 is provided with several annular upper film-forming grooves at equal intervals along the axial direction. The several sets of annular demolding spikes and the several annular upper film-forming grooves are arranged alternately along the axial direction of the demolding roller 5. The number of annular lower film-forming grooves, annular upper film-forming grooves, and film-collecting chains 3 are the same, and the positions of the annular lower film-forming grooves, annular upper film-forming grooves, and film-collecting chains 3 in the same group correspond to each other; one end of the film-collecting chain 3 in the same group is wrapped inside the annular lower film-forming groove, and the other end of the film-collecting chain 3 is wrapped inside the annular upper film-forming groove. Each film-picking chain 3 has several film-lifting pin teeth evenly distributed on its outer surface. The highest height of the film-lifting pin teeth is lower than the lowest height of the annular demolding pin tooth assembly.

[0038] Specifically, the film-collecting chain 3 is wound around the film-collecting roller 4 and the film-removing roller 5, and is driven by the rotation of the film-collecting roller 4. The film-collecting roller 4 and the film-removing roller 5 are arranged vertically on the frame 1, and both can rotate.

[0039] During operation, because the demolding pins of the demolding roller 5 are higher than the picking pins of the film-picking chain 3, when the film is conveyed to the demolding roller 5, it will be stretched and lifted, detaching from the picking pins of the film-picking chain 3 and being picked up by the demolding pins on the demolding roller 5. During this lifting process, the film sweeps across the laser emitted by the transverse laser emitter 7 and is cut into strips of film. After cutting, the stretched film is relaxed, and the above process is repeated. When the film strip, which has been cut by the laser emitted by the transverse laser emitter 7, passes the top of the demolding roller 5, the film strip will sweep across the longitudinal laser cutting rod 6, cutting the strip of film into appropriate sizes.

[0040] Example 3 This embodiment is a further optimization based on embodiment 2, specifically: The transverse laser cutting mechanism includes two laser cutting units symmetrically arranged on two support plates; Each laser cutting unit includes a power supply 19 installed on the outside of the corresponding support plate and a rotating conduction assembly installed on the outside of the support plate that periodically conducts to the power supply 19. The rotating conduction assembly includes a transverse laser emitter 7, and each transverse laser emitter 7 is positioned above the film pickup chain 3.

[0041] The longitudinal laser cutting mechanism includes a longitudinal laser cutting rod 6 fixedly disposed between two support plates and longitudinal laser emitters spaced apart on the longitudinal laser cutting rod 6; the longitudinal laser cutting rod 6 is located above the demolding roller 5.

[0042] Example 4 This embodiment is a further optimization based on embodiment 3, specifically: The array electrostatic precipitator system 10 includes a dust removal trough that is horizontally fixed between two support plates. The dust removal trough is located below the demolding roller 5. A demolding scraper 8 is inclinedly arranged on the top of the dust removal trough near the demolding roller 5. The top of the demolding scraper 8 is spaced by multiple demolding gaps that cooperate with multiple sets of annular demolding nail tooth assemblies. Multiple fans 9 are horizontally spaced at the bottom of the dust removal trough near the demolding roller 5. Multiple electrostatic precipitators are arranged at horizontal intervals on the side of the dust removal tank away from the demolding roller 5.

[0043] The electrostatic precipitator cylinder includes a dust collection roller 15 and a filter screen 14 sleeved on the outside of the dust collection roller 15. The filter screen 14 is cylindrical and connected to the negative terminal of the power supply 19. The dust collection roller 15 is located on the axis of the filter screen 14 and connected to the positive terminal of the power supply 19. The filter screen 14 has small holes with a diameter smaller than the size of the residual film after cutting.

[0044] Specifically, after the membrane is driven by the demolding roller 5 and passes through the demolding scraper 8, it falls in front of the blower 9. The blower 9 blows the membrane through the electrostatic precipitator array, which consists of a series of horizontally arranged electrostatic precipitator cylinders. Each cylinder consists of a filter screen 14 and a dust collection roller 15. The filter screen 14 is cylindrical and connected to the negative terminal of the power supply 19, carrying a negative charge. The dust collection roller 15 is located at the center of the filter screen 14 and connected to the positive terminal of the power supply 19, carrying a positive charge. When dust passes through the filter screen 14, it becomes polarized and carries a negative charge, gathering towards the dust collection roller 15 under the influence of the electric field. Meanwhile, the membrane continues to advance under the action of the blower 9 into the granulation mechanism 11. The filter screen 14 has small holes, allowing dust to pass through but not enough for the membrane to pass through.

[0045] Example 5 This embodiment is a further optimization based on embodiment 4, specifically: The granulation mechanism 11 includes a hot melt box 16 fixed on the frame 1, an extrusion roller pair 17 disposed at the outlet of the hot melt box 16, a collection trough 18 disposed below the outlet of the hot melt box 16, a motor 20 disposed on the outer wall of the hot melt box 16 or on the frame 1 for driving the rotation of the extrusion roller pair 17, and a power supply 19 for supplying power to the motor 20. The extrusion roller pair 17 includes two extrusion rollers rotating in opposite directions, and each extrusion roller has extrusion forming grooves evenly distributed around its circumference.

[0046] Specifically, the hot melt box 16 is mounted on the frame 1, the extrusion roller pair 17 is located at the outlet below the hot melt box 16, the power supply 19 is mounted on the frame 1, the electric motor 20 is mounted on the frame 1, and the collection tank 18 is mounted on the frame 1, located directly below the extrusion roller pair 17. The collection tank 18 can be a box or other container.

[0047] During operation, after the cut film is removed from the teeth on the stripping roller 5 by the stripping scraper 8, it is powered by the fan 9 and passes through the array electrostatic precipitator 10 to be dusted before falling into the hot melt box 16. Under the heating of the hot melt box 16 connected to the power supply 19, it melts into a liquid state and falls into the extrusion roller pair 17. It is then squeezed into plastic granules by the grooves on the extrusion roller pair 17 and falls into the collection tank 18.

[0048] Example 6 This embodiment is a further optimization based on embodiment 5, specifically: The bottom of the frame 1 is provided with a traveling mechanism, which includes a ground wheel 13 assembly located at the rear end of the bottom of the frame 1 and a depth limiting wheel 12 assembly located at the front end of the bottom of the frame 1. The ground wheel 13 assembly is coaxially connected to the film pickup roller 4.

[0049] Specifically, the film pickup roller 4 rotates along with the rotation of the ground wheel 13 assembly, thereby driving the film pickup chain 3.

Claims

1. A residual film recycling and granulation integrated machine, characterized in that, It includes a frame (1), a film-forming mechanism (2) disposed at the bottom of one side of the frame (1), a film-picking mechanism disposed at an incline on the frame (1) and cooperating with the film-forming mechanism (2), a film-removing mechanism disposed on the frame (1) and cooperating with the top of the film-picking mechanism, an array electrostatic precipitator system (10) disposed on the frame (1) and cooperating with the film-removing mechanism, and a granulation mechanism (11) disposed on the frame (1) and cooperating with the array electrostatic precipitator system (10). The transition point between the film picking mechanism and the film stripping mechanism is provided with a transverse laser cutting mechanism for cutting the residual film into transverse strips, and the frame (1) above the film stripping mechanism is provided with a longitudinal laser cutting mechanism for cutting the residual film into small pieces.

2. The residual film recycling and granulation integrated machine according to claim 1, characterized in that, The frame (1) includes two support plates arranged side by side, a connecting rod that fixes the two support plates together, and a transverse support plate for placing accessories; The film-forming mechanism (2) is disposed between the bottom rear ends of the two support plates. The film-forming mechanism (2) includes a transverse film-forming rod fixedly connected between the bottom rear ends of the two support plates and a plurality of film-forming nail teeth equally spaced along the axial direction on the transverse film-forming rod. Each film-forming nail tooth is a wedge-shaped tooth, and each wedge-shaped tooth faces forward.

3. The residual film recycling and granulation integrated machine according to claim 2, characterized in that, The film picking mechanism includes a film picking roller (4) that is laterally movable between the bottoms of the two support plates and several film picking chains (3). Several annular lower film picking grooves are provided at equal intervals along the axial direction on the outer surface of the film picking roller (4). The demolding mechanism is laterally movable between the tops of the two support plates. The outer surface of the demolding roller (5) is provided with several sets of annular demolding spikes at equal intervals along the axial direction. The outer surface of the demolding roller (5) is provided with several annular upper film-forming grooves at equal intervals along the axial direction. The several sets of annular demolding spikes and the several annular upper film-forming grooves are arranged alternately along the axial direction of the demolding roller (5). The number of the lower annular film-forming groove, the upper annular film-forming groove, and the film-collecting chain (3) are the same, and the positions of the lower annular film-forming groove, the upper annular film-forming groove, and the film-collecting chain (3) in the same group correspond to each other; one end of the film-collecting chain (3) in the same group is wrapped in the lower annular film-forming groove, and the other end of the film-collecting chain (3) is wrapped in the upper annular film-forming groove; The outer surface of each of the film-picking chains (3) is evenly distributed with a number of film-raising nail teeth, and the highest height of the film-raising nail teeth is lower than the lowest height of the annular demolding nail tooth assembly.

4. A residual film recycling and granulation integrated machine according to claim 2 or 3, characterized in that, The transverse laser cutting mechanism includes two laser cutting units symmetrically arranged on the two support plates; Each of the laser cutting units includes a power supply (19) installed on the outside of the corresponding support plate and a rotating conductive assembly installed on the outside of the support plate that periodically conducts to the power supply (19). The rotating conductive assembly includes a transverse laser emitter (7), and each transverse laser emitter (7) is disposed above the film pickup chain (3).

5. A residual film recycling and granulation integrated machine according to claim 2 or 3, characterized in that, The longitudinal laser cutting mechanism includes a longitudinal laser cutting rod (6) fixedly disposed between the two support plates and longitudinal laser emitters spaced apart on the longitudinal laser cutting rod (6); the longitudinal laser cutting rod (6) is located above the demolding roller (5).

6. The residual film recycling and granulation integrated machine according to claim 3, characterized in that, The array electrostatic precipitator (10) includes a dust removal trough that is horizontally fixed between two support plates. The dust removal trough is located below the demolding roller (5). A demolding scraper (8) is inclinedly arranged on the top of the dust removal trough near the demolding roller (5). The top of the demolding scraper (8) is spaced by multiple demolding gaps that cooperate with multiple sets of annular demolding nail tooth assemblies. Multiple fans (9) are horizontally spaced at the bottom of the dust removal trough near the demolding roller (5). Multiple electrostatic precipitators are arranged at horizontal intervals on the side of the dust removal tank away from the demolding roller (5).

7. The residual film recycling and granulation integrated machine according to claim 6, characterized in that, The electrostatic precipitator cylinder includes a dust collection roller (15) and a filter screen (14) sleeved on the outside of the dust collection roller (15). The filter screen (14) is cylindrical and connected to the negative terminal of the power supply (19). The dust collection roller (15) is located on the axis of the filter screen (14) and connected to the positive terminal of the power supply (19). The filter screen (14) has small holes with a diameter smaller than the size of the residual film after cutting.

8. The residual film recycling and granulation integrated machine according to claim 7, characterized in that, The granulation mechanism (11) includes a hot melt box (16) fixed on the frame (1), an extrusion wheel pair (17) provided at the outlet of the hot melt box (16), a collection trough (18) provided below the outlet of the hot melt box (16), an electric motor (20) provided on the outer wall of the hot melt box (16) or on the frame (1) for driving the extrusion wheel pair (17) to rotate, and a power supply (19) for supplying power to the electric motor (20).

9. The residual film recycling and granulation integrated machine according to claim 8, characterized in that, The extrusion roller pair (17) includes two extrusion rollers rotating in opposite directions, and each extrusion roller has extrusion forming grooves evenly distributed around its circumference.

10. The residual film recycling and granulation integrated machine according to claim 8, characterized in that, The frame (1) is provided with a walking mechanism at the bottom. The walking mechanism includes a ground wheel (13) assembly located at the rear end of the bottom of the frame (1) and a depth limiting wheel (12) assembly located at the front end of the bottom of the frame (1). The ground wheel (13) assembly is coaxially connected to the film picking roller (4).

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