Sorting structure for plastic film recycling

Abstract

The invention relates to the technical field of plastic film recovery, and discloses a sorting structure for plastic film recovery, which comprises a recovery box, and further comprises a discharge chute arranged on one side of the recovery box and used for discharging impurities in the crushed plastic film in the recovery box; the winnowing assembly is arranged in the recycling box and is used for adsorbing the crushed plastic films in the recycling box under negative pressure; the discharging groove is formed in the other side of the recycling box and used for discharging materials into the recycling box. According to the plastic film screening device, multiple sections of inclined positions are formed in the screening plate, and impurities in plastic films can be effectively separated. Impurities slide into the discharging groove through the discharging inclined plate, centralized collection is achieved, the impurity separation efficiency is improved, plastic films on the screening plate are adsorbed through negative pressure through the negative pressure draught fan and the adsorption cover, it is ensured that the plastic films are effectively recycled, meanwhile, the impurities are separated, and the recycling quality is improved.

Description

Technical Field

[0001] This invention relates to the field of plastic film recycling technology, specifically to a sorting structure for plastic film recycling. Background Technology

[0002] Plastic film, due to its lightweight, durability, and low cost, is widely used in packaging, agriculture, construction, and other fields. However, the large volume and short lifespan of plastic film usage make waste plastic film disposal a serious environmental problem. Traditional plastic film recycling methods mainly rely on manual sorting and simple mechanical processing, which suffer from low efficiency, high labor intensity, and unstable recycling quality. Therefore, to address the shortcomings of existing technologies, a sorting structure for plastic film recycling is proposed to solve the aforementioned problems. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a sorting structure for recycling plastic film, which addresses the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a sorting structure for recycling plastic film, including a recycling bin, and further comprising: A discharge chute is located on one side of the recycling bin and is used to discharge impurities from the crushed plastic film inside the recycling bin. An air separation component is installed inside the recycling bin to use negative pressure to adsorb the pulverized plastic film inside the recycling bin; A feeding chute is located on the other side of the recycling bin and is used to feed materials into the recycling bin. A pushing unit, located inside the recycling bin, is used to move the shredded plastic film. The pushing unit includes: A screening plate is installed inside the recycling bin to screen out impurities in the crushed plastic film; A reciprocating lead screw is installed inside the recycling bin; A limiting slide bar is installed inside the recycling bin and is symmetrical to the reciprocating lead screw. A pusher plate is installed on the outer wall of the reciprocating lead screw and is movably sleeved on the outer wall of the limiting slide bar. The bottom of the pusher plate is in contact with the top of the screening plate to push the crushed plastic film and impurities to move.

[0005] A shaking unit is installed inside the recycling bin to shake the screening plate; The jitter unit includes: Multiple fixing sleeves are fixedly connected to the bottom of the inner wall of the recycling bin; Multiple connecting rods are movably connected to the inner wall of the fixed sleeve, and the top of the connecting rods is fixedly connected to the bottom of the screening plate; Multiple springs are disposed on the inner wall of the fixed sleeve to push the connecting rod upward.

[0006] Preferably, the screening plate has multiple inclined sections, and the inner wall of the recycling bin is fixedly connected to the front and rear sides with wave-shaped limiting plates. Multiple push plates are provided and slide at the inclined part of the top of the screening plate; Each of the push plates is provided with two L-shaped abutment rods at the top, and the other side of the L-shaped abutment rods abuts against the inner wall of the recycling bin and fits against the corrugated limiting plate to push the screening plate down; Each of the push plates is equipped with a flipping component for flipping the plastic film on the screening plate.

[0007] Preferably, the flipping component includes: The movable plate is movably connected within the movable groove of the push plate; Two movable rods are connected to the movable plate and move on the push plate; Spring 1 is movably connected to the inner wall of the movable rod and connected to the push plate, and is used to push the movable rod upward; Multiple flexible levers are fixedly connected to both sides of the movable plate and move through the through holes on both sides of the push plate; Two U-shaped levers are fixedly connected to the outer sides of the push plate and are in contact with the elastic lever.

[0008] Preferably, a reset component is provided on one side of the shaking unit for delaying upward reset to push the screening plate to shake upward; The reset component includes: A push rod is located on one side of the connecting rod and is connected to the bottom of the inner wall of the recycling bin via a spring and a fixing sleeve. The top of the push rod is in contact with the bottom of the screening plate; A wedge-shaped pusher is fixedly connected to the outer wall of the connecting rod; A sliding column is mounted on the push rod, and one side of the sliding column is in contact with one side of the wedge-shaped push block; A round rod is movably connected to the other side of the sliding column; A cylindrical limiting rod is fixedly connected to the inner wall of the recycling bin and contacts the round rod.

[0009] Preferably, the inner wall of the sliding column is provided with a spring three, and the spring three is used to push the round rod to move towards the cylindrical limiting rod; The outer wall of the slide column is fixedly fitted with a ring, and the outer wall of the slide column is fitted with a spring four, which is used to reset the slide column to contact the wedge-shaped push block.

[0010] Preferably, the wind separator component includes: A negative pressure fan is installed on top of the recycling bin; An adsorption hood, installed on one side of the negative pressure fan, is used to adsorb broken plastic film located on the screening plate inside the recycling box; The discharge pipe is fixedly connected to the negative pressure fan and is used to discharge the broken plastic film adsorbed by the negative pressure fan.

[0011] Preferably, the feeding trough includes: The feed hopper is located at the through hole on the left side of the recycling box; Two pins are fixedly connected to the outer wall of the feed hopper and rotate at the left through hole of the recycling box; Two abutting rods are fixedly connected to the bottom of the feed hopper and movably connected to the outer wall of the corrugated limiting plate, and abut against the L-shaped abutting rod.

[0012] Preferably, the inner wall of the recycling bin is fixedly connected to a feeding ramp, which is inclined and the inclined part of the feeding ramp is located at the discharge chute. A cleaning groove is provided on the left side of the outer wall of the recycling bin for cleaning impurities on the left side of the screening plate.

[0013] The present invention, by adopting the above technical solution, can bring the following beneficial effects: 1. This sorting structure for plastic film recycling features multiple inclined sections on the screening plate, effectively separating impurities from the plastic film. Impurities slide into the discharge chute via the feeding inclined plate for centralized collection, improving impurity separation efficiency. A negative pressure fan and adsorption hood utilize negative pressure to adsorb the plastic film on the screening plate, ensuring effective recycling of the plastic film while simultaneously separating impurities, thus improving recycling quality.

[0014] 2. This plastic film recycling sorting structure uses a pusher unit that, through the coordinated operation of a reciprocating screw and a pusher plate, automatically pushes the plastic film onto the screening plate. Guided by a limiting slide bar, the pusher plate moves left and right, preventing plastic film accumulation and improving screening efficiency. Each pusher plate is equipped with a flipping component; through the up-and-down movement of a movable plate, movable rod, and elastic lever, the plastic film is flipped, further promoting the adsorption effect of the air separation component and ensuring uniform processing of the plastic film.

[0015] 3. The sorting structure for recycling plastic film uses a shaking unit that, through the cooperation of a fixed sleeve, connecting rod, and spring 2, enables the screen plate to shake up and down, promoting the shedding of impurities and improving the impurity separation effect. The reset component, through the coordinated work of a push rod, wedge-shaped push block, sliding column, and round rod, enables the screen plate to reset and vibrate in a delayed manner, further promoting the shedding of impurities and ensuring the cleanliness and efficient operation of the screen plate.

[0016] 4. In this plastic film recycling sorting structure, the feed hopper in the feeding trough is connected to the recycling bin via a pin and can deflect around the hinge. The L-shaped abutment rod slides on the corrugated limit plate, pushing the feed hopper to deflect, preventing the plastic film from clogging and ensuring that the plastic film falls smoothly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the exploded structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the exploded structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the jitter unit structure of the present invention; Figure 6 This is a schematic diagram of the reset component structure of the present invention; Figure 7 This is a schematic diagram of the driving unit structure of the present invention; Figure 8 This is a schematic diagram of the flipping component structure of the present invention.

[0018] In the diagram: 1. Recycling bin; 2. Discharge chute; 3. Air separation assembly; 31. Negative pressure fan; 32. Adsorption hood; 33. Discharge pipe; 4. Feed chute; 41. Feed hopper; 42. Abutment rod; 43. Pin; 5. Cleaning chute; 6. Pushing unit; 61. Screening plate; 62. Corrugated limit plate; 63. Reciprocating screw; 64. Limiting slide bar; 65. Push plate; 66. L-shaped abutment rod; 67. Tilting assembly; 671. 672. Movable plate; 673. Movable rod; 674. Spring 1; 675. Elastic lever; 676. U-shaped stop bar; 7. Vibration unit; 777. Fixed sleeve; 78. Connecting rod; 79. Spring 2; 70. Reset assembly; 71. Push rod; 72. Wedge-shaped push block; 73. Sliding column; 744. Columnar limit rod; 75. Round rod; 76. Spring 3; 77. Spring 4; 78. Ring; 8. Feeding inclined plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-8 One embodiment of the present invention is: a sorting structure for recycling plastic film, including a recycling bin 1, and further comprising: Discharge chute 2 is located on one side of recycling bin 1 and is used to discharge impurities from the crushed plastic film inside recycling bin 1. The air separation component 3 is installed inside the recycling bin 1 and is used to adsorb the crushed plastic film inside the recycling bin 1 under negative pressure. The feeding chute 4 is located on the other side of the recycling bin 1 and is used to feed materials into the recycling bin 1; The pushing unit 6 is located inside the recycling bin 1 and is used to push the shredded plastic film to move. Among them, the driving unit 6 includes: A screening plate 61 is installed inside the recycling bin 1 to screen out impurities in the crushed plastic film. The reciprocating lead screw 63 is installed inside the recycling bin 1; The limiting slide bar 64 is installed inside the recycling bin 1 and is symmetrical to the reciprocating lead screw 63; Push plate 65 is installed on the outer wall of reciprocating screw 63 and is movably sleeved on the outer wall of limiting slide bar 64. The bottom of push plate 65 is attached to the top of screening plate 61 to push the crushed plastic film and impurities to move.

[0021] The shaking unit 7 is located inside the recycling bin 1 and is used to shake the screening plate 61; The jitter unit 7 includes: Multiple fixing sleeves 71 are fixedly connected to the bottom of the inner wall of the recycling bin 1; Multiple connecting rods 72 are movably connected to the inner wall of the fixed sleeve 71, and the top of the connecting rods 72 is fixedly connected to the bottom of the screening plate 61. Multiple springs 73 are disposed on the inner wall of the fixed sleeve 71 to push the connecting rod 72 to move upward.

[0022] The screening plate 61 has multiple inclined sections, and the inner wall of the recycling bin 1 is fixedly connected to the front and rear sides with wave-shaped limiting plates 62. Multiple push plates 65 are provided and slide at the top of the screen plate 61 at an inclined position; Each push plate 65 is provided with two L-shaped abutment rods 66 at its top, and the other side of the L-shaped abutment rods 66 abuts against the inner wall of the recycling bin 1 and is in contact with the corrugated limiting plate 62 for pushing the screening plate 61 to move down. Each push plate 65 is equipped with a flipping component 67 for flipping the plastic film on the screening plate 61.

[0023] The flipping component 67 includes: The movable plate 671 is movably connected to the movable slot of the push plate 65; Two movable rods 672 are connected to the movable plate 671 and move on the push plate 65; Spring 673 is movably connected to the inner wall of movable rod 672 and connected to push plate 65, and is used to push movable rod 672 upward; Multiple flexible levers 674 are fixedly connected to both sides of the movable plate 671 and move through the through holes on both sides of the push plate 65. Two U-shaped levers 675 are fixedly connected to the outer sides of the push plate 65 and are in contact with the elastic lever 674.

[0024] A reset component 74 is provided on one side of the shaking unit 7, which is used to delay the upward reset and push the screening plate 61 to shake upward; Reset component 74 includes: Push rod 741 is located on one side of connecting rod 72 and is connected to the bottom of the inner wall of recycling box 1 by a spring 73 and a fixing sleeve 71; The top of push rod 741 is in contact with the bottom of screening plate 61; The wedge-shaped pusher 742 is fixedly connected to the outer wall of the connecting rod 72; A sliding column 743 is mounted on a push rod 741, and one side of the sliding column 743 is in contact with one side of the wedge-shaped push block 742. The round rod 745 is movably connected to the other side of the sliding column 743; The cylindrical limiting rod 744 is fixedly connected to the inner wall of the recycling bin 1 and is in contact with the round rod 745.

[0025] The inner wall of the sliding column 743 is provided with a spring 746, and the spring 746 is used to push the round rod 745 to move towards the cylindrical limiting rod 744; A ring 748 is fixedly sleeved on the outer wall of the slide column 743, and a spring 747 is sleeved on the outer wall of the slide column 743 for resetting the slide column 743 to contact the wedge-shaped push block 742.

[0026] Wind separator component 3 includes: Negative pressure fan 31 is installed on top of recycling bin 1; The adsorption hood 32 is installed on one side of the negative pressure fan 31 and is used to adsorb the broken plastic film located on the screening plate 61 in the recovery box 1. The discharge pipe 33 is fixedly connected to the negative pressure fan 31 and is used to discharge the broken plastic film adsorbed by the negative pressure fan 31.

[0027] The feeding trough 4 includes: The feed hopper 41 is located at the through hole on the left side of the recycling bin 1; Two pins 43 are fixedly connected to the outer wall of the feed hopper 41 and rotate at the left through hole of the recycling box 1; Two abutting rods 42 are fixedly connected to the bottom of the feed hopper 41 and movably connected to the outer wall of the corrugated limiting plate 62, and abut against the L-shaped abutting rod 66.

[0028] The inner wall of the recycling bin 1 is fixedly connected to a feeding ramp 8, which is set at an angle. The lower part of the feeding ramp 8 is located at the discharge chute 2. A cleaning groove 5 is provided on the left side of the outer wall of the recycling bin 1, which is used to clean impurities on the left side of the screening plate 61.

[0029] Working principle: First, the plastic film is centrally crushed by the crushing equipment to achieve a suitable size for recycling. Then, the crushed film is placed into the feed hopper 41, where it slides onto the screening plate 61 for sieving. Impurities within the plastic film are separated by the screening plate 61. Simultaneously, the negative pressure fan 31 is activated to adsorb impurities, and the adsorption hood 32 adsorbs the plastic film located on the screening plate 61, which is then collected centrally through the discharge pipe 33. Meanwhile, to prevent plastic film from accumulating on the screening plate 61, the motor installed on the outer wall of the recycling bin 1 is started, and the reciprocating screw 63 is rotated by the motor. At this time, under the action of the limiting slide bar 64, the push plate 65 is driven to move left and right inside the recycling bin 1, thereby pushing the accumulated plastic film on the screening plate 61 and pushing it to the right along the top of the screening plate 61. At the same time, during the process of the push plate 65 moving to the right, it will abut against the wavy limiting plate 62 through the L-shaped abutment rod 66. At this time, when the L-shaped abutment rod 66 contacts the wavy limiting plate 62, the L-shaped abutment rod 66 will abut against the wavy limiting plate 62. The plate 62 slides on the crests and troughs, and with the action of the spring 673, it pushes the movable plate 671 up and down. The movable rod 672 moves up and down at the push plate 65 to expand the area when pushing the plastic film. At the same time, during the up and down movement of the movable plate 671, it will drive the elastic lever 674 on its outer wall to move up and down, which will cause the plastic film on the screening plate 61 to turn over. At the same time, after the elastic lever 671 touches the U-shaped stop bar 675, it will generate elastic movement, thereby promoting the turning of the plastic film, so as to facilitate the negative pressure fan 31 to adsorb the plastic film.

[0030] Meanwhile, as the L-shaped abutment rod 66 moves up and down, it will contact the L-shaped abutment rod 66 when sliding on the wave-shaped limiting plate 62. At the same time, under the action of gravity, it will continuously push the feed hopper 41 to deflect around its hinge, thereby promoting the plastic film in the feed hopper 41 to fall and preventing the plastic film from clogging the feed hopper 41. Meanwhile, when the push plate 65 moves, it comes into contact with the screening plate 61 and pushes the screening plate 61 downward, which in turn pushes the connecting rod 72 and the push rod 741 downward at the same time. At this time, the spring 73 below the connecting rod 72 and the push rod 741 is squeezed synchronously. At this time, the sliding column 743 and the round rod 745 will move downward synchronously. The round rod 745 comes into contact with the cylindrical limiting rod 744 and is compressed. After sliding below the cylindrical limiting rod 744, the round rod 745 is reset under the push of the spring 746, so that the round rod 745 comes into contact with the cylindrical limiting rod 744 to achieve the limit. When the screening plate 61 moves upward, the contact between the connecting rod 72 and the push rod 741 will be released, which will drive the connecting rod 72 to move upward. At the same time, the connecting rod 72 will synchronously drive the wedge-shaped push block 742 to move upward, and release the resistance to the sliding column 743, causing the screening plate 61 to move upward a certain distance. During the process of the sliding column 743 sliding on the outer wall of the wedge-shaped push block 742, under the action of the third spring 746, the sliding column 743 is pushed to move towards the side of the wedge-shaped push block 742, thereby synchronously driving the round rod 745 to move, and causing the round rod 745 to disengage from the contact with the cylindrical limit rod 744. At this time, under the action of the second spring 73 at the bottom of the push rod 741, the reset push rod 741 moves upward and hits the screening plate 61, causing the screening plate 61 to vibrate, thereby promoting the impurities on the screening plate 61 to fall off. At the same time, the second spring 73 under the push rod 741, in conjunction with the second spring 73 under the connecting rod 72, pushes the screening plate 61, so that the screening plate 61 completes the upward reset.

Claims

1. A sorting structure for recycling plastic film, comprising a recycling bin (1), characterized in that, Also includes: The discharge chute (2) is located on one side of the recycling box (1) and is used to discharge impurities from the crushed plastic film inside the recycling box (1). The air separation component (3) is installed inside the recycling box (1) and is used to adsorb the crushed plastic film inside the recycling box (1) under negative pressure. A feeding trough (4) is located on the other side of the recycling bin (1) and is used to feed materials into the recycling bin (1); A pushing unit (6) is disposed inside the recycling bin (1) and is used to push the crushed plastic film to move. The pushing unit (6) includes: A screening plate (61) is installed inside the recycling bin (1) to screen impurities in the crushed plastic film; A reciprocating lead screw (63) is installed inside the recycling bin (1); A limiting slide bar (64) is installed inside the recycling bin (1) and is symmetrical to the reciprocating lead screw (63); Push plate (65) is installed on the outer wall of the reciprocating screw (63) and is movably sleeved on the outer wall of the limiting slide bar (64). The bottom of the push plate (65) is attached to the top of the screening plate (61) to push the crushed plastic film and impurities to move. A shaking unit (7) is disposed inside the recycling bin (1) for shaking the screening plate (61). The jitter unit (7) includes: Multiple fixing sleeves (71) are fixedly connected to the bottom of the inner wall of the recycling bin (1); Multiple connecting rods (72) are movably connected to the inner wall of the fixed sleeve (71), and the top of the connecting rods (72) is fixedly connected to the bottom of the screening plate (61); Multiple springs (73) are disposed on the inner wall of the fixed sleeve (71) to push the connecting rod (72) upward.

2. The sorting structure for recycling plastic film according to claim 1, characterized in that: The screening plate (61) has multiple inclined sections, and the inner wall of the recycling box (1) is fixedly connected with wave-shaped limiting plates (62) on both the front and rear sides. Multiple push plates (65) are provided and slide at the top of the screening plate (61) at an inclined position; Each of the push plates (65) is provided with two L-shaped abutment rods (66) at the top, and the other side of the L-shaped abutment rods (66) abuts against the inner wall of the recycling bin (1) and is in contact with the wave-shaped limiting plate (62) for pushing the screening plate (61) down. Each of the push plates (65) is provided with a flipping assembly (67) for flipping the plastic film on the screening plate (61).

3. The sorting structure for recycling plastic film according to claim 2, characterized in that: The flipping component (67) includes: The movable plate (671) is movably connected within the movable groove of the push plate (65); Two movable rods (672) are connected to the movable plate (671) and move on the push plate (65); Spring 1 (673) is movably connected to the inner wall of the movable rod (672) and connected to the push plate (65) for pushing the movable rod (672) upward; Multiple elastic levers (674) are fixedly connected to both sides of the movable plate (671) and move through the through holes on both sides of the push plate (65); Two U-shaped levers (675) are fixedly connected to the outer sides of the push plate (65) and in contact with the elastic lever (674).

4. The sorting structure for recycling plastic film according to claim 3, characterized in that: A reset component (74) is provided on one side of the shaking unit (7) for delaying the reset and pushing the screening plate (61) to shake upward; The reset component (74) includes: Push rod (741) is located on one side of the connecting rod (72) and is connected to the bottom of the inner wall of the recycling box (1) by a spring (73) and a fixing sleeve (71); The top of the push rod (741) is in contact with the bottom of the screening plate (61); A wedge-shaped pusher (742) is fixedly connected to the outer wall of the connecting rod (72); A sliding column (743) is disposed on the push rod (741), and one side of the sliding column (743) is in contact with one side of the wedge-shaped push block (742); A round rod (745) is movably connected to the other side of the sliding column (743); A cylindrical limiting rod (744) is fixedly connected to the inner wall of the recycling bin (1) and contacts the round rod (745).

5. A sorting structure for recycling plastic film according to claim 4, characterized in that: The inner wall of the sliding column (743) is provided with a spring three (746), and the spring three (746) is used to push the round rod (745) to move towards the cylindrical limiting rod (744); The outer wall of the slide column (743) is fixedly fitted with a ring (748), and the outer wall of the slide column (743) is fitted with a spring (747) for resetting the slide column (743) to contact the wedge-shaped push block (742).

6. A sorting structure for recycling plastic film according to claim 5, characterized in that: The wind separation component (3) includes: A negative pressure fan (31) is installed on top of the recycling bin (1); An adsorption hood (32) is installed on one side of the negative pressure fan (31) to adsorb broken plastic film located on the screening plate (61) in the recovery box (1); The discharge pipe (33) is fixedly connected to the negative pressure fan (31) and is used to discharge the broken plastic film adsorbed by the negative pressure fan (31).

7. A sorting structure for recycling plastic film according to claim 6, characterized in that: The feeding trough (4) includes: The feed hopper (41) is located at the through hole on the left side of the recycling box (1); Two pins (43) are fixedly connected to the outer wall of the feed hopper (41) and rotate at the left through hole of the recycling box (1); Two abutting rods (42) are fixedly connected to the bottom of the feed hopper (41) and movably connected to the outer wall of the wave-shaped limiting plate (62), and abut against the L-shaped abutting rod (66).

8. A sorting structure for recycling plastic film according to claim 7, characterized in that: The inner wall of the recycling bin (1) is fixedly connected to a feeding sloping plate (8) and is set at an inclination. The lower part of the feeding sloping plate (8) is located at the discharge chute (2). The outer wall of the recycling bin (1) is provided with a cleaning groove (5) on the left side, which is used to clean the impurities on the left side of the screening plate (61).

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