Pretreatment device and method for plastic recycling

Abstract

The invention discloses a pretreatment device and method for plastic recycling, and relates to the technical field of plastic recycling, the pretreatment device comprises an L-shaped frame, a bottle cap locking piece is mounted on one side of a threaded sleeve block, a bottle body rotating piece is arranged at the top of a movable frame, and a dumping unit is arranged at the bottom of the L-shaped frame. By arranging a bottle cap locking piece and a bottle body rotating piece, a second transmission straight gear is meshed with a second rack through movement of a moving frame, so that a first T-shaped clamping plate moves towards the circle center of a placing plate, bottle caps can be clamped and limited through the first T-shaped clamping plate, meanwhile, a side plate moves upwards, and the bottle caps can be clamped and limited through the side plate. A second T-shaped clamping plate fits and supports a bottle body of a plastic bottle, when a first transmission straight gear is meshed with a first rack, the second T-shaped clamping plate can enable the bottle body to rotate, so that a bottle cap is separated from the bottle body, a solution in the plastic bottle can be poured out, and the influence of the solution on subsequent plastic recovery is prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic recycling, and specifically to a pretreatment device and method for plastic recycling. Background Art

[0002] Plastic waste is one of the main sources of white pollution. It has a long degradation time and seriously pollutes the environment. For example, defective products or waste generated during the production of plastic products. However, due to the recyclable properties of plastics, plastic waste can be processed and remanufactured, generally including steps of cleaning, crushing, and drying.

[0003] When recycling plastics, there may be plastic bottles with caps. At this time, the solution inside the plastic bottle cannot be poured out. If it is directly processed, the solutions in different plastic bottles will be mixed in the processing bin, which will affect the subsequent plastic recycling and processing effect. At this time, if the caps are removed manually, it will waste a lot of time, increase the labor intensity of the staff, and also affect the subsequent plastic recycling and processing efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a pretreatment device and method for plastic recycling to solve the problem of inconvenient pretreatment of plastic bottles.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A pretreatment device for plastic recycling includes an L-shaped frame. A first motor is installed on one side of the L-shaped frame. The output end of the first motor is connected to a threaded lead screw. Guide rods are installed on the L-shaped frame on both sides of the threaded lead screw. A threaded sleeve block is movably sleeved on the threaded lead screw. A moving frame is installed on the outside of the threaded sleeve block. A cap locking member is installed on one side of the threaded sleeve block. A bottle body rotating member is arranged on the top of the moving frame. A tipping unit is arranged at the bottom of the L-shaped frame. A clamping ring is installed on one side of the threaded sleeve block.

[0006] As a further solution of the present invention: The bottle cap locking member includes a plurality of guiding connecting plates installed at the bottom of the clamping ring. The plurality of guiding connecting plates are equidistantly distributed along the center of the clamping ring. A placing plate is installed at the bottom of the guiding connecting plate. A first T-shaped clamping plate penetrating through the guiding connecting plate is inserted into the guiding connecting plate. One end of the first T-shaped clamping plate is rotatably connected by a rotating shaft to a first inclined connecting rod. The bottom end of the first inclined connecting rod is rotatably connected by a rotating shaft to a shifting ring located below the placing plate. The bottom of the shifting ring is fixedly connected to a first frame. A second frame is slidably connected inside the first frame. A first telescopic spring connected to the inner wall of the first frame is arranged at the top of the second frame. The bottom of the moving frame is rotatably connected by a rotating shaft to a reciprocating lead screw located inside the second frame. The bottom end of the reciprocating lead screw is installed with a second driving spur gear located below the moving frame. A second rack is installed on one side of the bottom of the L-shaped frame.

[0007] As a further solution of the present invention: A crescent pin matching the reciprocating lead screw is arranged at the bottom of the second frame. The top of the second frame is in contact with the inner wall of the first frame.

[0008] As a further solution of the present invention: A chute matching the first inclined connecting rod is opened on the placing plate. The center of the placing plate, the center of the clamping ring, and the center of the shifting ring are coaxial.

[0009] As a further solution of the present invention: The bottle body rotating member includes a first fixed ring installed on the top of the moving frame. The inner side of the first fixed ring is rotatably connected by a bearing to a first rotating ring. A bevel gear ring is installed on the top of the first rotating ring. The top of the moving frame is rotatably connected by a bearing to a rotating connecting shaft. One end of the rotating connecting shaft is installed with a bevel gear meshing with the bevel gear ring. The end of the rotating connecting shaft far from the bevel gear is installed with a first driving spur gear. A plurality of second T-shaped clamping plates are inserted into the bottom of the first rotating ring. The plurality of second T-shaped clamping plates are equidistantly distributed along the center of the first rotating ring. A second inclined connecting rod is rotatably connected to the second T-shaped clamping plate by a rotating shaft. The bottom end of the second inclined connecting rod is rotatably connected by a rotating shaft to a second rotating ring. The inner wall of the second rotating ring is rotatably connected by a rotating shaft to a second fixed ring. A jacking rod is installed at the bottom of the second fixed ring. Side plates are arranged on both sides of the second frame. A pushing rod is arranged at the top of the side plate. A sleeve connected to the bottom of the jacking rod is sleeved on the pushing rod. A second telescopic spring connected to the inner wall of the sleeve is installed at the top of the pushing rod. A first rack is installed on the top of the L-shaped frame.

[0010] As a further solution of the present invention: The number of the second racks is two, and the two second racks are symmetrically arranged along the vertical central axis of the first rack. The length of the first rack is equal to the distance between the two second racks.

[0011] As a further solution of the present invention: The maximum distance of the second driving spur gear from the center of the conical gear ring is greater than the inner wall diameter of the conical gear ring.

[0012] As a further solution of the present invention: The tipping unit includes a movable shaft installed at the bottom of the L-shaped frame. A worm gear is installed on the movable shaft. Extension frames are connected to both sides of the movable shaft. A mounting seat is installed at the end of the extension frame away from the L-shaped frame. A base is provided at the bottom of the mounting seat. A counterweight is installed on the top of the base inside the mounting seat. A second motor is installed inside the mounting seat. The output end of the second motor is connected to an extension rod. One end of the extension rod is installed with a worm that meshes with the worm gear.

[0013] As a further solution of the present invention: The length of the extension frame is greater than the bottom width of the L-shaped frame.

[0014] The present invention also discloses a pretreatment method for plastic recycling. Using the above-mentioned pretreatment device for plastic recycling, it includes the following steps: S1: First, invert the plastic bottle with a cap inside the clamping ring, and then start the first motor. Drive the rotation of the threaded lead screw through the first motor to make the threaded sleeve block limited by the guide rod move horizontally along the threaded lead screw. S2: During this process, clamp and fix the cap with the cap locking member. Then, as the threaded sleeve block drives the movement of the moving frame, the bottle body rotating member clamps and rotates the plastic bottle body to separate the cap from the bottle body. S3: When the moving frame moves from one end of the L-shaped frame to the other end, through the cooperation of the bottle body rotating member and the cap locking member, the limits of both the bottle body and the cap of the plastic bottle are lost. Then start the tipping unit, and make the L-shaped frame tilt through the operation of the tipping unit, so that the separated cap and bottle body fall off. S4: Then, make the L-shaped frame reset through the tipping unit, and move the moving frame to the initial position through the operation of the first motor. Invert the next plastic bottle inside the clamping ring.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting a bottle cap locking member and a bottle body rotating member, the movement of the moving frame causes the second driving spur gear to mesh with the second rack, thereby moving the first T-shaped clamping plate towards the center of the placement plate. In this way, the bottle cap can be clamped and limited by the first T-shaped clamping plate. At the same time, the contraction elasticity of the first telescopic spring enables the first T-shaped clamping plate to clamp and limit bottle caps of different sizes, thereby increasing the scope of application of the device. At the same time, the side plate moves upward, and the second T-shaped clamping plate fits and supports the plastic bottle body. When the first driving spur gear meshes with the first rack, the second T-shaped clamping plate can rotate the bottle body, thereby separating the bottle cap from the bottle body. In this way, the solution in the plastic bottle can be poured out, preventing it from affecting the subsequent recycling of plastics. 2. By setting a pouring unit, when the moving frame moves from one end of the L-shaped frame to the other end, the bottle body of the plastic bottle is separated from the bottle cap. At this time, the second motor is started, and the operation of the second motor drives the worm to drive the worm wheel to rotate, thereby rotating the L-shaped frame relative to the mounting seat, so that the L-shaped frame rotates 180 degrees, thereby dropping the bottle cap in the clamping ring and the bottle body in the first rotating ring. Then, the operation of the second motor is used to restore the L-shaped frame, thereby realizing the continuity of the pretreatment of the plastic bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the whole of the present invention; Figure 2 is a side view of the present invention; Figure 3 is a schematic connection diagram of the moving frame and the placement plate of the present invention; Figure 4 is a schematic structural diagram of the bottle body rotating member of the present invention; Figure 5 is a schematic connection diagram of the first rotating ring and the second rotating ring of the present invention; Figure 6 is a schematic connection diagram of the moving frame and the first fixed ring of the present invention; Figure 7 is a schematic connection diagram of the L-shaped frame and the mounting seat of the present invention; Figure 8 is a schematic structural diagram of the L-shaped frame of the present invention.

[0017] In the figure: 1. L-shaped frame; 2. First motor; 3. Guide rod; 4. Threaded lead screw; 5. Moving frame; 6. First rack; 7. First driving spur gear; 8. Rotating coupling; 9. Bevel gear; 10. Mounting seat; 11. Counterweight; 12. Base; 13. Second rack; 14. Extension frame; 15. Movable shaft; 16. Second motor; 17. Side plate; 18. Jacking rod; 19. First fixed ring; 20. Clamping ring; 21. Placing plate; 22. Guide connecting plate; 23. First frame; 24. First T-shaped clamping plate; 25. Second frame; 26. Threaded sleeve block; 27. Second driving spur gear; 28. Reciprocating lead screw; 29. First telescopic spring; 30. Shifting ring; 31. Pushing rod; 32. Sleeve; 33. First inclined connecting rod; 34. Conical gear ring; 35. First rotating ring; 36. Second rotating ring; 37. Second T-shaped clamping plate; 38. Second inclined connecting rod; 39. Second fixed ring; 40. Second telescopic spring; 41. Extension rod; 42. Worm; 43. Worm gear. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", and "setting" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The embodiments of the present invention will be described below according to the overall structure of the present invention.

[0020] Please refer to Figures 1 to 8, in an embodiment of the present invention, a pretreatment device for plastic recycling includes an L-shaped frame 1. A first motor 2 is installed on one side of the L-shaped frame 1. The output end of the first motor 2 is connected to a threaded lead screw 4. Guide rods 3 are installed on the L-shaped frame 1 on both sides of the threaded lead screw 4. A threaded sleeve block 26 is movably sleeved on the threaded lead screw 4. A moving frame 5 is installed on the outer side of the threaded sleeve block 26. A bottle cap locking member is installed on one side of the threaded sleeve block 26. A bottle body rotating member is arranged on the top of the moving frame 5. A tipping unit is arranged at the bottom of the L-shaped frame 1. A clamping ring 20 is installed on one side of the threaded sleeve block 26.

[0021] In this embodiment: First, place the plastic bottle with a bottle cap upside down inside the clamping ring 20. Then start the first motor 2. Drive the rotation of the threaded lead screw 4 through the first motor 2 to make the threaded sleeve block 26 limited by the guide rods 3 move horizontally along the threaded lead screw 4. During this process, clamp and fix the bottle cap through the bottle cap locking member. Then, as the threaded sleeve block 26 drives the movement of the moving frame 5, the bottle body rotating member clamps and rotates the plastic bottle body to separate the bottle cap from the bottle body. When the moving frame 5 moves from one end of the L-shaped frame 1 to the other end, through the cooperation of the bottle body rotating member and the bottle cap locking member, both the bottle body and the bottle cap of the plastic bottle lose their limits. Then start the tipping unit. Make the L-shaped frame 1 tilt through the operation of the tipping unit, so that the separated bottle cap and bottle body fall off. Then, through the tipping unit, the L-shaped frame 1 is reset, and through the operation of the first motor 2, the moving frame 5 is moved to the initial position. Place the next plastic bottle upside down inside the clamping ring 20. Repeating like this can preprocess the plastic bottles.

[0022] Please refer specifically to Figure 1 , Figure 3 , Figure 6 , the bottle cap locking member includes a plurality of guiding connecting plates 22 installed at the bottom of the clamping ring 20. The plurality of guiding connecting plates 22 are equidistantly distributed along the center of the clamping ring 20. A placing plate 21 is installed at the bottom of the guiding connecting plate 22. A first T-shaped clamping plate 24 penetrating through the guiding connecting plate 22 is inserted on the guiding connecting plate 22. One end of the first T-shaped clamping plate 24 is rotatably connected to a first inclined connecting rod 33 through a rotating shaft. The bottom end of the first inclined connecting rod 33 is rotatably connected to a shifting ring 30 located below the placing plate 21 through a rotating shaft. The bottom of the shifting ring 30 is fixedly connected to a first frame 23. A second frame 25 is slidably connected inside the first frame 23. A first telescopic spring 29 connected to the inner wall of the first frame 23 is arranged at the top of the second frame 25. The bottom of the moving frame 5 is rotatably connected to a reciprocating lead screw 28 located inside the second frame 25 through a rotating shaft. The bottom end of the reciprocating lead screw 28 is installed with a second driving spur gear 27 located below the moving frame 5. A second rack 13 is installed on one side at the bottom of the L-shaped frame 1.

[0023] In this embodiment: When the moving frame 5 moves horizontally along with the clamping ring 20, the movement of the moving frame 5 causes the second driving spur gear 27 to mesh with the second rack 13, so as to drive the reciprocating lead screw 28 to rotate by the second driving spur gear 27, thereby enabling the second frame 25 to move vertically along the reciprocating lead screw 28. When the second frame 25 moves upward, the first telescopic spring 29 drives the first frame 23 to move upward, so as to move the shifting ring 30 upward relative to the placing plate 21. When the shifting ring 30 moves upward, the first T-shaped clamping plate 24 is pushed by the first inclined connecting rod 33 to move towards the center of the placing plate 21. In this way, the first T-shaped clamping plate 24 can be used to clamp and limit the bottle cap. At the same time, the contraction elasticity of the first telescopic spring 29 enables the first T-shaped clamping plate 24 to clamp and limit bottle caps of different sizes, so as to increase the application range of the device. When the second driving spur gear 27 meshes with another second rack 13, the second frame 25 will move downward along with the rotation of the reciprocating lead screw 28, so as to make the first T-shaped clamping plate 24 lose the fixation of the bottle cap.

[0024] Please refer specifically to Figure 3 、 Figure 6 , a crescent pin matching the reciprocating lead screw 28 is provided at the bottom of the second frame 25, and the top of the second frame 25 is in contact with the inner wall of the first frame 23.

[0025] In this embodiment: By setting this structure, when the reciprocating lead screw 28 rotates, the second frame 25 moves vertically along the first frame 23, so as to apply a vertical thrust to the shifting ring 30.

[0026] Please refer specifically to Figure 3 、 Figure 6 , a chute matching the first inclined connecting rod 33 is provided on the placing plate 21, and the centers of the placing plate 21, the clamping ring 20, and the shifting ring 30 are coaxial.

[0027] In this embodiment: By setting this structure, it is possible to prevent the placing plate 21 from obstructing the first inclined connecting rod 33, and at the same time, the first T-shaped clamping plate 24 can clamp the bottle cap in the center.

[0028] Please refer specifically to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6, the bottle body rotating part includes a first fixed ring 19 installed on the top of the moving frame 5. The inner side of the first fixed ring 19 is rotatably connected to a first rotating ring 35 through a bearing. The top of the first rotating ring 35 is installed with a bevel gear ring 34. The top of the moving frame 5 is rotatably connected to a rotating coupling shaft 8 through a bearing. One end of the rotating coupling shaft 8 is installed with a bevel gear 9 meshing with the bevel gear ring 34. The end of the rotating coupling shaft 8 away from the bevel gear 9 is installed with a first transmission spur gear 7. The bottom of the first rotating ring 35 is inserted with a plurality of second T-shaped clamping plates 37. The plurality of second T-shaped clamping plates 37 are equidistantly distributed along the center of the first rotating ring 35. A second inclined connecting rod 38 is rotatably connected to the second T-shaped clamping plate 37 through a rotating shaft. The bottom end of the second inclined connecting rod 38 is rotatably connected to a second rotating ring 36 through a rotating shaft. The inner wall of the second rotating ring 36 is rotatably connected to a second fixed ring 39 through a rotating shaft. The bottom of the second fixed ring 39 is installed with a jacking rod 18. Side plates 17 are arranged on both sides of the second frame 25. A pushing rod 31 is arranged on the top of the side plate 17. A sleeve 32 connected to the bottom of the jacking rod 18 is sleeved on the pushing rod 31. The top of the pushing rod 31 is installed with a second telescopic spring 40 connected to the inner wall of the sleeve 32. The top of the L-shaped frame 1 is installed with a first rack 6.

[0029] In this embodiment: When the second frame 25 moves upward relative to the moving frame 5, it will drive the side plate 17 to move upward. At this time, the side plate 17 drives the sleeve 32 to move upward through the second telescopic spring 40, so as to make the jacking rod 18 push the second fixed ring 39. At this time, the second fixed ring 39 will drive the second rotating ring 36 to move synchronously. When the second rotating ring 36 moves upward, it will move the second T-shaped clamping plate 37 toward the center of the first rotating ring 35 by squeezing the second inclined connecting rod 38, so as to make the second T-shaped clamping plate 37 fit and support the plastic bottle body. When the second transmission spur gear 27 separates from the second rack 13 as the moving frame 5 moves, the first transmission spur gear 7 meshes with the first rack 6, so as to make the bevel gear 9 drive the first rotating ring 35 to rotate through the bevel gear ring 34. When the first rotating ring 35 rotates, the bottle body can be rotated through the second T-shaped clamping plate 37, so as to realize the separation of the bottle cap and the bottle body. At the same time, the plastic bottle body will move vertically relative to the second T-shaped clamping plate 37, so that the solution in the plastic bottle can be poured out, thus preventing it from affecting the subsequent recycling of plastics.

[0030] Please refer specifically to Figure 7 , Figure 8 , the number of the second racks 13 is set to two, and the two second racks 13 are symmetrically arranged along the vertical central axis of the first rack 6. The length of the first rack 6 is equal to the distance between the two second racks 13.

[0031] In this embodiment: By setting this structure, when the second driving spur gear 27 is separated from the second rack 13, the first driving spur gear 7 meshes with the first rack 6, so as to realize the orderly operation of the second T-shaped splint 37 for supporting and rotating the bottle body.

[0032] Please refer specifically to Figure 4 , Figure 5 , Figure 6 , the farthest distance of the second driving spur gear 27 from the center of the conical gear ring 34 is greater than the inner wall diameter of the conical gear ring 34.

[0033] In this embodiment: By setting this structure, it is possible to prevent the second T-shaped splint 37 from blocking when placing the plastic bottle inside the first rotating ring 35, so as to improve the smoothness of placing the plastic bottle.

[0034] Please refer specifically to Figure 1 , Figure 2 , Figure 7 , Figure 8 , the pouring unit includes a movable shaft 15 installed at the bottom of the L-shaped frame 1, a worm gear 43 is installed on the movable shaft 15, extension frames 14 are connected to both sides of the movable shaft 15, a mounting seat 10 is installed at the end of the extension frame 14 away from the L-shaped frame 1, a base 12 is arranged at the bottom of the mounting seat 10, a counterweight 11 located inside the mounting seat 10 is installed on the top of the base 12, a second motor 16 is installed inside the mounting seat 10, an extension rod 41 is connected to the output end of the second motor 16, and a worm 42 meshing with the worm gear 43 is installed at one end of the extension rod 41.

[0035] In this embodiment: When the moving frame 5 moves from one end of the L-shaped frame 1 to the other end, the bottle body and the bottle cap of the plastic bottle are separated. At this time, the second motor 16 is started, and the worm 42 drives the worm gear 43 to rotate through the operation of the second motor 16, so as to make the L-shaped frame 1 rotate relative to the mounting seat 10, so that the L-shaped frame 1 rotates 180 degrees, so as to drop the bottle cap in the snap ring 20 and the bottle body in the first rotating ring 35. After that, the L-shaped frame 1 is restored through the operation of the second motor 16, so as to realize the continuity of the plastic bottle pretreatment.

[0036] Please refer specifically to Figure 7 , the length of the extension frame 14 is greater than the bottom width of the L-shaped frame 1.

[0037] In this embodiment: By setting this structure, it is possible to prevent the L-shaped frame 1 from being blocked by the mounting seat 10 when rotating 180 degrees, so as to improve the smoothness of the rotation of the L-shaped frame 1.

[0038] The following provides a plastic recycling pretreatment method in combination with the above-mentioned plastic recycling pretreatment device, which specifically includes the following steps: S1: First, place the plastic bottle with the bottle cap upside down inside the clamping ring 20. Then, start the first motor 2. Drive the rotation of the threaded lead screw 4 through the first motor 2 to make the threaded sleeve block 26 restricted by the guide rod 3 move horizontally along the threaded lead screw 4. S2: When the moving frame 5 moves horizontally with the clamping ring 20, the movement of the moving frame 5 causes the second driving spur gear 27 to mesh with the second rack 13, thereby driving the reciprocating lead screw 28 to rotate by the second driving spur gear 27, so that the second frame 25 moves vertically along the reciprocating lead screw 28. When the second frame 25 moves upward, it drives the first frame 23 to move upward through the first telescopic spring 29, so as to make the displacement ring 30 move upward relative to the placement plate 21. When the displacement ring 30 moves upward, it squeezes the first T-shaped clamping plate 24 through the first inclined connecting rod 33 to make the first T-shaped clamping plate 24 move towards the center of the placement plate 21. In this way, the bottle cap can be clamped and limited by the first T-shaped clamping plate 24. At the same time, the first telescopic spring 29 contracts elastically to make the first T-shaped clamping plate 24 clamp and limit bottle caps of different sizes, thereby increasing the application range of the device. When the second frame 25 moves upward relative to the moving frame 5, it drives the side plate 17 to move upward. At this time, the side plate 17 drives the sleeve 32 to move upward through the second telescopic spring 40, so as to make the jacking rod 18 push the second fixed ring 39. At this time, the second fixed ring 39 will drive the second rotating ring 36 to move synchronously. When the second rotating ring 36 moves upward, it squeezes the second inclined connecting rod 38 to make the second T-shaped clamping plate 37 move towards the center of the first rotating ring 35, so as to make the second T-shaped clamping plate 37 fit and support the plastic bottle body. When the second driving spur gear 27 separates from the second rack 13 as the moving frame 5 moves, the first driving spur gear 7 meshes with the first rack 6, thereby driving the bevel gear 9 to drive the first rotating ring 35 to rotate through the bevel gear ring 34. When the first rotating ring 35 rotates, the bottle body can be rotated through the second T-shaped clamping plate 37, so as to realize the separation of the bottle cap and the bottle body. At the same time, the plastic bottle body will move vertically relative to the second T-shaped clamping plate 37, so that the solution in the plastic bottle can be poured out. S3: When the second driving spur gear 27 meshes with another second rack 13, the second frame 25 will move downward as the reciprocating lead screw 28 rotates, so as to make the first T-shaped clamping plate 24 lose the fixation of the bottle cap. Start the second motor 16, and drive the worm gear 43 to rotate through the operation of the second motor 16, so as to make the L-shaped frame 1 rotate relative to the mounting seat 10, so that the L-shaped frame 1 rotates 180 degrees, so as to drop the bottle cap in the clamping ring 20 and the bottle body in the first rotating ring 35. Then, through the operation of the second motor 16, the L-shaped frame 1 is restored, so as to realize the continuity of the plastic bottle pretreatment. S4: Then, the L-shaped frame 1 is reset by the pouring unit, and the moving frame 5 is moved to the initial position by the operation of the first motor 2, and the next plastic bottle is buckled inside the clamping ring 20.

[0039] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A plastic recycling pretreatment device, comprising an L-shaped frame (1), characterized in that: A first motor (2) is installed on one side of the L-shaped frame (1); an output end of the first motor (2) is connected to a threaded screw (4); guide rods (3) located on both sides of the threaded screw (4) are installed on the L-shaped frame (1); a threaded sleeve (26) is movably sleeved on the threaded screw (4); a moving frame (5) is installed on the outer side of the threaded sleeve (26); a bottle cap locking part is installed on one side of the threaded sleeve (26); a bottle body rotating part is arranged on the top of the moving frame (5); a dumping unit is arranged at the bottom of the L-shaped frame (1); and a clamping ring (20) is installed on one side of the threaded sleeve (26).

2. A plastic recycling pretreatment device according to claim 1, characterized in that: The bottle cap locking member comprises a plurality of guide connecting plates (22) mounted on the bottom of the clamping ring (20), the plurality of guide connecting plates (22) being distributed at equal distances along the center of the clamping ring (20), a placement plate (21) being mounted on the bottom of the guide connecting plate (22), a first T-shaped clamping plate (24) penetrating the guide connecting plate (22) being inserted on the guide connecting plate (22), one end of the first T-shaped clamping plate (24) being rotatably connected to a first oblique connecting rod (33) via a rotating shaft, the bottom end of the first oblique connecting rod (33) being rotatably connected to a displacement ring (30) located below the placement plate (21) via a rotating shaft, The bottom of the shift ring (30) is fixedly connected to a first frame (23), the interior of the first frame (23) is slidably connected to a second frame (25), the top of the second frame (25) is provided with a first telescopic spring (29) connected to the inner wall of the first frame (23), the bottom of the moving frame (5) is rotatably connected to a reciprocating screw rod (28) located inside the second frame (25) via a rotating shaft, the bottom end of the reciprocating screw rod (28) is installed with a second transmission spur gear (27) located below the moving frame (5), and a second rack (13) is installed on one side of the bottom of the L-shaped frame (1).

3. A plastic recycling pretreatment device according to claim 2, characterized in that: A crescent pin matching the reciprocating screw rod (28) is arranged at the bottom of the second frame (25), and the top of the second frame (25) contacts the inner wall of the first frame (23).

4. A plastic recycling pretreatment device according to claim 2, characterized in that: The placement plate (21) is provided with a sliding groove matching the first oblique connecting rod (33), and the center of the placement plate (21), the center of the clamping ring (20) and the center of the displacement ring (30) are coaxial.

5. A plastic recycling pretreatment device according to claim 2, characterized in that: The bottle body rotating member comprises a first fixed ring (19) mounted on the top of the moving frame (5); the inner side of the first fixed ring (19) is rotatably connected to a first rotating ring (35) via a bearing; a bevel gear ring (34) is mounted on the top of the first rotating ring (35); a rotating shaft (8) is rotatably connected to the top of the moving frame (5) via a bearing; a bevel gear (9) meshing with the bevel gear ring (34) is mounted on one end of the rotating shaft (8); a first transmission spur gear (7) is mounted on the end of the rotating shaft (8) away from the bevel gear (9); a plurality of second T-shaped clamping plates (37) are plugged into the bottom of the first rotating ring (35); the plurality of second T-shaped clamping plates (37) are equidistantly distributed along the center of the first rotating ring (35); and the second T-shaped clamping plates (37) are equidistantly distributed along the center of the first rotating ring (35). A second oblique link (38) is rotatably connected to the L-shaped splint (37) via a rotating shaft, the bottom end of the second oblique link (38) is rotatably connected to a second rotating ring (36) via a rotating shaft, the inner wall of the second rotating ring (36) is rotatably connected to a second fixed ring (39) via a rotating shaft, a lifting rod (18) is installed at the bottom of the second fixed ring (39), side plates (17) are provided on both sides of the second frame (25), a push rod (31) is provided at the top of the side plate (17), a sleeve (32) connected to the bottom of the lifting rod (18) is sleeved on the push rod (31), a second telescopic spring (40) connected to the inner wall of the sleeve (32) is installed at the top of the push rod (31), and a first rack (6) is installed at the top of the L-shaped frame (1).

6. A plastic recycling pretreatment device according to claim 5, characterized in that: The number of the second racks (13) is two, and the two second racks (13) are symmetrically arranged along the vertical center axis of the first rack (6), and the length of the first rack (6) is equal to the distance between the two second racks (13).

7. A plastic recycling pretreatment device according to claim 5, characterized in that: The farthest distance between the second transmission spur gear (27) and the center of the bevel gear ring (34) is greater than the inner wall diameter of the bevel gear ring (34).

8. A plastic recycling pretreatment device according to claim 5, characterized in that: The tipping unit comprises a movable shaft (15) installed at the bottom of an L-shaped frame (1), a worm gear (43) being installed on the movable shaft (15), extension frames (14) being connected to both sides of the movable shaft (15), a mounting seat (10) being installed at one end of the extension frame (14) away from the L-shaped frame (1), a base (12) being arranged at the bottom of the mounting seat (10), a counterweight (11) being installed at the top of the base (12) and being located inside the mounting seat (10), a second motor (16) being installed inside the mounting seat (10), an extension rod (41) being connected to the output end of the second motor (16), and a worm (42) meshing with the worm gear (43) being installed at one end of the extension rod (41).

9. A plastic recycling pretreatment device according to claim 8, characterized in that: The length of the extension frame (14) is greater than the bottom width of the L-shaped frame (1).

10. A pretreatment method for plastic recycling, characterized in that: The plastic recycling pretreatment device according to any one of claims 1 to 9 comprises the following steps: S1: First, a plastic bottle with a bottle cap is turned upside down on the inner side of the clamping ring (20), and then the first motor (2) is started, and the first motor (2) drives the threaded screw (4) to rotate, so that the threaded sleeve (26) limited by the guide rod (3) moves horizontally along the threaded screw (4); S2: During this process, the bottle cap is clamped and fixed by the bottle cap locking member, and then the threaded sleeve (26) drives the moving frame (5) to move so that the bottle body rotating member clamps and rotates the plastic bottle body, thereby separating the bottle cap from the bottle body; S3: When the moving frame (5) moves from one end of the L-shaped frame (1) to the other end, the bottle body and the bottle cap of the plastic bottle are both freed from their limits through the cooperation between the bottle body rotating member and the bottle cap locking member, and then the tipping unit is activated, and the L-shaped frame (1) is tilted through the operation of the tipping unit, so that the separated bottle cap and bottle body fall off; S4: The L-shaped frame (1) is then reset through the tipping unit, and the first motor (2) is operated to move the movable frame (5) to the initial position, and the next plastic bottle is inverted on the inner side of the clamping ring (20).

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