Pretreatment device and method for plastic recycling

Abstract

The present invention discloses a pretreatment device and method for plastic recycling, which relates to the field of plastic recycling technology. The device comprises an L-shaped frame, a bottle cap locking member installed on one side of a threaded sleeve, a bottle body rotating member provided on the top of a movable frame, and a dumping unit provided on the bottom of the L-shaped frame. The present invention provides the bottle cap locking member and the bottle body rotating member, and the second transmission spur gear and the second rack are engaged by the movement of the movable frame, thereby moving the first T-shaped clamping plate toward the center of the circle of the placement plate. In this way, the bottle cap can be clamped and limited by the first T-shaped clamping plate, and the side plate is moved upward, and the second T-shaped clamping plate is fitted and supported on the plastic bottle body. When the first transmission spur gear and the first rack are engaged, the second T-shaped clamping plate can rotate the bottle body, thereby separating the bottle cap from the bottle body, thereby pouring out the solution in the plastic bottle, thereby preventing it from affecting the subsequent recycling of the plastic.

Description

Technical Field

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

[0002] Plastic waste is one of the main sources of white pollution. It takes a long time to degrade and causes serious environmental pollution. For example, it is produced in the process of producing unqualified products or waste. However, due to the reusability of plastic, plastic waste can be processed and re-manufactured, which generally includes cleaning, crushing and drying steps.

[0003] However, since sealed plastic bottles appear during plastic recycling, the solution inside the plastic bottles cannot be poured out. If they are processed directly, the solutions in different plastic bottles will be mixed in the processing bin, which will affect the subsequent processing and recycling of the plastics. At this time, if the bottle caps are removed manually, a lot of time will be wasted, and the labor intensity of the staff will be increased, which will also affect the efficiency of subsequent plastic recycling processing. Summary of the Invention

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

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A pretreatment device for plastic recycling, comprising an L-shaped frame, a first motor being installed on one side of the L-shaped frame, an output end of the first motor being connected to a threaded screw, a guide rod being installed on both sides of the threaded screw, a threaded sleeve being movably sleeved on the threaded screw, a movable frame being installed on the outer side of the threaded sleeve, a bottle cap locking member being installed on one side of the threaded sleeve, a bottle body rotating member being provided on the top of the movable frame, a dumping unit being provided at the bottom of the L-shaped frame, and a clamping ring being installed on one side of the threaded sleeve.

[0006] As a further solution of the present invention: the bottle cap locking member includes a plurality of guide connecting plates installed at the bottom of the clamping ring, and the plurality of guide connecting plates are equidistantly distributed along the center of the clamping ring, the bottom of the guide connecting plate is installed with a placing plate, and the guide connecting plate is inserted with a first T-shaped clamp that passes through the guide connecting plate, one end of the first T-shaped clamp is rotatably connected to the first oblique connecting rod through a rotating shaft, and the bottom end of the first oblique connecting rod is rotatably connected to the shift ring located below the placing plate through a rotating shaft, and the bottom of the shift ring is fixedly connected to the first frame, and the interior of the first frame is slidably connected to the second frame, and the top of the second frame is provided with a first telescopic spring connected to the inner wall of the first frame, and the bottom of the movable frame is rotatably connected to a reciprocating screw located on the inner side of the second frame through a rotating shaft, and the bottom end of the reciprocating screw is installed with a second transmission spur gear located below the movable frame, and 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 screw is provided at the bottom of the second frame, and the top of the second frame contacts the inner wall of the first frame.

[0008] As a further solution of the present invention: a sliding groove matching the first oblique connecting rod is provided on the placement plate, and the center of the placement plate, the center of the clamping ring and the center of the shift 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 mobile frame, the inner side of the first fixed ring is rotatably connected to the first rotating ring through a bearing, the top of the first rotating ring is installed with a bevel gear ring, the top of the mobile frame is rotatably connected to a rotating shaft through a bearing, one end of the rotating shaft is installed with a bevel gear meshing with the bevel gear ring, the end of the rotating shaft away from the bevel gear is installed with a first transmission spur gear, the bottom of the first rotating ring is plugged with a plurality of second T-shaped splints, and the plurality of second T-shaped splints are connected along the first rotating ring The centers of the circles are equidistantly distributed, the second T-shaped splint is rotatably connected to a second oblique link via a rotating shaft, the bottom end of the second oblique link is rotatably connected to a second rotating ring via a rotating shaft, the inner wall of the second rotating ring is rotatably connected to a second fixed ring via a rotating shaft, a lifting rod is installed at the bottom of the second fixed ring, side plates are provided on both sides of the second frame, a pushing rod is provided on the top of the side plate, a sleeve connected to the bottom of the lifting rod is sleeved on the pushing rod, a second telescopic spring connected to the inner wall of the sleeve is installed on the top of the pushing rod, and a first rack is installed on the top of the L-shaped frame.

[0010] As a further solution of the present invention: there are two second racks, and the two second racks are symmetrically arranged along the vertical center axis of the first rack, and 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 farthest distance between the second transmission spur gear and the center of the bevel gear ring is greater than the inner wall diameter of the bevel 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 block located on the inner side of the mounting seat is installed on the top of the base, a second motor is installed on the inner side of the mounting seat, an extension rod is connected to the output end of the second motor, and a worm meshing with the worm gear is installed at one end of the extension rod.

[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, which uses the above-mentioned pretreatment device for plastic recycling and includes the following steps:

[0015] S1: First, a plastic bottle with a bottle cap is placed upside down on the inner side of the clamping ring, and then the first motor is started. The first motor drives the screw rod to rotate, so that the threaded sleeve block, which is limited by the guide rod, moves horizontally along the screw rod;

[0016] S2: During this process, the bottle cap is clamped and fixed by the bottle cap locking member, and then the threaded sleeve drives the moving frame 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;

[0017] S3: When the moving frame moves from one end of the L-shaped frame to the other end, the bottle body and the bottle cap of the plastic bottle are released from their restraints through the cooperation between the bottle body rotating member and the bottle cap locking member. Then, the tipping unit is activated, and the operation of the tipping unit causes the L-shaped frame to tilt, thereby causing the separated bottle cap and bottle body to fall off.

[0018] S4: The L-shaped frame is then reset by the dumping unit, and the first motor is operated to move the movable frame to the initial position, and the next plastic bottle is turned upside down on the inner side of the clamping ring.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By arranging a bottle cap locking member and a bottle body rotating member, the second transmission spur gear is engaged with the second rack through the movement of the movable frame, so that the first T-shaped clamping plate is moved toward the center of the circle of the placement plate, so that the bottle cap can be clamped and limited by the first T-shaped clamping plate, and 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 applicability of the equipment. 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 transmission spur gear is engaged with the first rack, the second T-shaped clamping plate can rotate the bottle body to achieve separation of the bottle cap from the bottle body, so that the solution in the plastic bottle can be poured out, thereby preventing it from affecting the subsequent plastic recycling;

[0021] 2. By setting up a dumping unit, when the mobile frame moves from one end of the L-shaped frame to the other end, the bottle body and the bottle cap of the plastic bottle are separated. At this time, the second motor is started, and the operation of the second motor causes the worm to drive the worm wheel to rotate, thereby causing the L-shaped frame to rotate relative to the mounting seat, thereby causing the L-shaped frame to rotate 180 degrees, thereby causing the bottle cap in the clamping ring and the bottle body in the first rotating ring to fall down, and then the operation of the second motor causes the L-shaped frame to recover, thereby achieving continuity in the pre-treatment of the plastic bottles. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0023] Figure 2 is a side view of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection between the mobile frame and the placement plate of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the bottle rotating member of the present invention;

[0026] Figure 5 Schematic diagram of the connection between the first rotating ring and the second rotating ring of the present invention;

[0027] Figure 6 This is a schematic diagram of the connection between the mobile frame and the first fixed ring of the present invention;

[0028] Figure 7 This is a schematic diagram of the connection between the L-shaped frame and the mounting base of the present invention;

[0029] Figure 8 It is a structural schematic diagram of the L-shaped frame of the present invention.

[0030] In the figure: 1. L-shaped frame; 2. First motor; 3. Guide rod; 4. Screw rod; 5. Moving frame; 6. First rack; 7. First transmission spur gear; 8. Rotating coupling; 9. Bevel gear; 10. Mounting base; 11. Counterweight; 12. Base; 13. Second rack; 14. Extension frame; 15. Movable shaft; 16. Second motor; 17. Side plate; 18. Lifting rod; 19. First fixed ring; 20. Snap ring; 21. Placement plate; 22. Guide connecting plate; 23. First frame 24. First T-shaped clamp; 25. Second frame; 26. Threaded sleeve; 27. Second transmission spur gear; 28. Reciprocating screw; 29. ​​First telescopic spring; 30. Shift ring; 31. Push rod; 32. Sleeve; 33. First oblique link; 34. Bevel gear ring; 35. First rotating ring; 36. Second rotating ring; 37. Second T-shaped clamp; 38. Second oblique link; 39. Second fixed ring; 40. Second telescopic spring; 41. Extension rod; 42. Worm; 43. Worm wheel. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not 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 "installed", "connected", "connected", and "set" 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 a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. 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 circumstances. The following describes an embodiment of the present invention based on its overall structure.

[0033] See also Figures 1 to 8In 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, an output end of the first motor 2 is connected to a threaded screw 4, a guide rod 3 is installed on both sides of the threaded screw 4 on the L-shaped frame 1, a threaded sleeve 26 is movably sleeved on the threaded screw 4, a movable frame 5 is installed on the outer side of the threaded sleeve 26, a bottle cap locking member is installed on one side of the threaded sleeve 26, a bottle body rotating member is provided on the top of the movable frame 5, a dumping unit is provided at the bottom of the L-shaped frame 1, and a clamping ring 20 is installed on one side of the threaded sleeve 26.

[0034] In this embodiment, first, the plastic bottle with the bottle cap is buckled on the inner side of the clamping ring 20, and then the first motor 2 is started. The first motor 2 drives the screw rod 4 to rotate to make the screw block 26 limited by the guide rod 3 move horizontally along the screw rod 4. During this process, the bottle cap is clamped and fixed by the bottle cap locking piece. Then, as the screw block 26 drives the moving frame 5 to move, the bottle body rotating piece clamps and rotates the plastic bottle body, so that the bottle cap is separated from the bottle body. When the moving frame 5 moves from the L-shaped When one end of the frame 1 moves to the other end, the bottle body and the bottle cap of the plastic bottle lose their limit through the cooperation between the bottle body rotating part and the bottle cap locking part, and then the dumping unit is started. The operation of the dumping unit causes the L-shaped frame 1 to tilt, so that the separated bottle cap and bottle body fall off, and then the dumping unit is used to reset the L-shaped frame 1, and the operation of the first motor 2 causes the movable frame 5 to move to the initial position, and the next plastic bottle is turned upside down on the inner side of the clamping ring 20. This process is repeated to pre-treat the plastic bottles.

[0035] Please refer to Figure 1 、 Figure 3 、 Figure 6 The bottle cap locking member includes a plurality of guide connecting plates 22 installed at the bottom of the clamping ring 20, and the plurality of guide 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 guide connecting plate 22, and a first T-shaped clamping plate 24 that passes through the guide connecting plate 22 is inserted on the guide connecting plate 22. One end of the first T-shaped clamping plate 24 is rotatably connected to a first oblique connecting rod 33 through a rotating shaft. The bottom end of the first oblique connecting rod 33 is rotatably connected to a shift ring 30 located below the placing plate 21 through a rotating shaft. The bottom of the shift ring 30 is fixedly connected to the first frame 23, and the interior of the first frame 23 is slidably connected to the 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 28 located inside the second frame 25 through a rotating shaft. The bottom end of the reciprocating screw 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.

[0036] In this embodiment, when the mobile frame 5 moves horizontally along with the clamping ring 20, the second transmission spur gear 27 is meshed with the second rack 13 through the movement of the mobile frame 5, so that the second transmission spur gear 27 drives the reciprocating screw 28 to rotate, so that the second frame 25 moves vertically along the reciprocating screw 28. When the second frame 25 moves upward, the first frame 23 is driven upward by the first telescopic spring 29, so that the shift ring 30 moves upward relative to the placement plate 21. When the shift ring 30 moves upward, the first oblique connecting rod 33 is used to rotate the second frame 25. The first T-shaped clamping plate 24 is squeezed to move the first T-shaped clamping plate 24 toward the center of the placement plate 21, so that the bottle cap can be clamped and limited by the first T-shaped clamping plate 24. 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, thereby increasing the applicability of the equipment. When the second transmission spur gear 27 is engaged with the other second rack 13, the second frame 25 will move downward with the rotation of the reciprocating screw 28, thereby causing the first T-shaped clamping plate 24 to lose its fixation on the bottle cap.

[0037] Please refer to Figure 3 、 Figure 6 The bottom of the second frame 25 is provided with a crescent pin that matches the reciprocating screw rod 28, and the top of the second frame 25 contacts the inner wall of the first frame 23.

[0038] In this embodiment, by providing this structure, the second frame 25 is vertically moved along the first frame 23 when the reciprocating screw 28 rotates, thereby applying a thrust in the vertical direction to the shift ring 30 .

[0039] Please refer to Figure 3 、 Figure 6 A sliding groove matching the first oblique link 33 is provided on the placement plate 21 , and the center of the placement plate 21 , the center of the clamping ring 20 and the center of the shift ring 30 are coaxial.

[0040] In this embodiment, this structure is provided to prevent the placement plate 21 from obstructing the first oblique connecting rod 33 , while also enabling the first T-shaped clamping plate 24 to centrally clamp the bottle cap.

[0041] Please refer to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6The bottle body rotating member includes a first fixed ring 19 installed on the top of the mobile frame 5. The inner side of the first fixed ring 19 is rotatably connected to the 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 mobile frame 5 is rotatably connected to the rotating coupling 8 through a bearing. One end of the rotating coupling 8 is installed with a bevel gear 9 meshing with the bevel gear ring 34. The end of the rotating coupling 8 away from the bevel gear 9 is installed with a first transmission spur gear 7. A plurality of second T-shaped clamps 37 are plugged into the bottom of the first rotating ring 35. The plurality of second T-shaped clamps 37 are distributed at equal distances along the center of the first rotating ring 35. The second T-shaped clamping plate 37 is rotatably connected to the second oblique link 38 via a rotating shaft. The bottom end of the second oblique link 38 is rotatably connected to the second rotating ring 36 via a rotating shaft. The inner wall of the second rotating ring 36 is rotatably connected to the second fixed ring 39 via a rotating shaft. The bottom of the second fixed ring 39 is installed with a lifting rod 18. Side plates 17 are provided on both sides of the second frame 25. A pushing rod 31 is provided on the top of the side plate 17. A sleeve 32 connected to the bottom of the lifting rod 18 is sleeved on the pushing rod 31. A second telescopic spring 40 connected to the inner wall of the sleeve 32 is installed on the top of the pushing rod 31. The first rack 6 is installed on the top of the L-shaped frame 1.

[0042] In this embodiment, when the second frame 25 moves upward relative to the movable frame 5, the side plate 17 is driven to move upward. At this time, the side plate 17 drives the sleeve 32 to move upward through the second telescopic spring 40, so that the lifting rod 18 pushes the second fixed ring 39. At this time, the second fixed ring 39 drives the second rotating ring 36 to move synchronously. When the second rotating ring 36 moves upward, it squeezes the second oblique connecting rod 38 to move the second T-shaped clamping plate 37 toward the center of the first rotating ring 35, so that the second T-shaped clamping plate 37 fits and supports the plastic bottle body. When the second transmission spur gear 27 separates from the second rack 13 as the mobile frame 5 moves, the first transmission spur gear 7 engages with the first rack 6, so that the bevel gear 9 drives 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 separate the bottle cap from the bottle body. At the same time, the plastic bottle body will move in the vertical direction relative to the second T-shaped clamping plate 37, so that the solution in the plastic bottle can be poured out, thereby preventing it from affecting the subsequent plastic recycling.

[0043] Please refer to Figure 7 、 Figure 8 There are two second racks 13 , 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 .

[0044] In this embodiment, by providing this structure, the first transmission spur gear 7 is meshed with the first rack 6 when the second transmission spur gear 27 is separated from the second rack 13, thereby achieving orderly operation of the second T-shaped clamping plate 37 to support and rotate the bottle body.

[0045] Please refer to Figure 4 、 Figure 5 、 Figure 6 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 .

[0046] In this embodiment, this structure is provided to prevent the plastic bottle from being blocked by the second T-shaped clamping plate 37 when being inserted into the inner side of the first rotating ring 35 , thereby improving the smoothness of the plastic bottle placement.

[0047] Please refer to Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 The tipping 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, and extension frames 14 are connected to both sides of the movable shaft 15. A mounting seat 10 is installed at one end of the extension frame 14 away from the L-shaped frame 1, and a base 12 is provided at the bottom of the mounting seat 10. A counterweight block 11 located on the inner side of the mounting seat 10 is installed on the top of the base 12. A second motor 16 is installed on the inner side of the mounting seat 10, and an extension rod 41 is connected to the output end of the second motor 16. A worm 42 meshing with the worm gear 43 is installed at one end of the extension rod 41.

[0048] In this embodiment, when the movable 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 operation of the second motor 16 causes the worm 42 to drive the worm gear 43 to rotate, thereby rotating the L-shaped frame 1 relative to the mounting base 10, thereby causing the L-shaped frame 1 to rotate 180 degrees, thereby dropping the bottle cap in the clamping ring 20 and the bottle body in the first rotating ring 35. Afterwards, the operation of the second motor 16 restores the L-shaped frame 1, thereby achieving continuity in the pre-processing of the plastic bottles.

[0049] Please refer to Figure 7 , the length of the extension frame 14 is greater than the bottom width of the L-shaped frame 1.

[0050] In this embodiment, this structure is provided to prevent the L-shaped frame 1 from being blocked by the mounting seat 10 when the L-shaped frame 1 rotates 180 degrees, thereby improving the smoothness of the rotation of the L-shaped frame 1.

[0051] In combination with the above-mentioned plastic recycling pretreatment device, a plastic recycling pretreatment method is provided, which specifically includes the following steps:

[0052] S1: First, put the plastic bottle with the bottle cap upside down on the inner side of the clamping ring 20, and then start the first motor 2. The first motor 2 drives the screw rod 4 to rotate, so that the screw sleeve 26 limited by the guide rod 3 moves horizontally along the screw rod 4; S2: When the moving frame 5 moves horizontally with the clamping ring 20, the second transmission spur gear 27 is engaged with the second rack 13 through the movement of the moving frame 5, so that the second transmission spur gear 27 drives the reciprocating screw rod 28 to rotate, so that the second frame 25 moves along the reciprocating screw rod 28. When the second frame 25 moves upward in the vertical direction, the first frame 23 is driven upward by the first telescopic spring 29, so that the shift ring 30 moves upward relative to the placement plate 21. When the shift ring 30 moves upward, the first oblique connecting rod 33 squeezes the first T-shaped clamping plate 24 to move the first T-shaped clamping plate 24 toward the center of the placement plate 21, so that the bottle cap can be clamped and limited by the first T-shaped clamping plate 24. At the same time, the contraction elasticity of the first telescopic spring 29 enables the first T-shaped clamping plate 24 to clamp bottle caps of different sizes. When the second frame 25 moves upward relative to the movable frame 5, the side plate 17 is driven to move upward. At this time, the side plate 17 drives the sleeve 32 to move upward through the second telescopic spring 40, so that the lifting rod 18 pushes the second fixed ring 39. At this time, the second fixed ring 39 drives the second rotating ring 36 to move synchronously. When the second rotating ring 36 moves upward, it squeezes the second oblique link 38 to move the second T-shaped clamp 37 toward the center of the first rotating ring 35, so that the second T-shaped clamp 37 The plastic bottle body is fitted and supported. 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 engages with the first rack 6, so that the bevel gear 9 drives 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, thereby realizing 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;

[0053] S3: When the second transmission spur gear 27 is meshed with the other second rack 13, the second frame 25 will move downward with the rotation of the reciprocating screw 28, thereby causing the first T-shaped clamping plate 24 to lose its fixation on the bottle cap, and the second motor 16 is started. The operation of the second motor 16 causes the worm 42 to drive the worm wheel 43 to rotate, thereby causing the L-shaped frame 1 to rotate relative to the mounting seat 10, thereby causing the L-shaped frame 1 to rotate 180 degrees, thereby causing the bottle cap in the clamping ring 20 and the bottle body in the first rotating ring 35 to fall. Afterwards, the operation of the second motor 16 restores the L-shaped frame 1, thereby achieving continuity in the pre-processing of the plastic bottles;

[0054] S4: The L-shaped frame 1 is then reset by 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 placed upside down on the inner side of the clamping ring 20 .

[0055] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection 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), a guide rod (3) is installed on both sides of the threaded screw (4) on the L-shaped frame (1), a threaded sleeve (26) is movably sleeved on the threaded screw (4), a movable frame (5) is installed on the outer side of the threaded sleeve (26), a bottle cap locking member is installed on one side of the threaded sleeve (26), a bottle body rotating member is provided on the top of the movable frame (5), a dumping unit is provided at the bottom of the L-shaped frame (1), and a clamping ring (20) is installed on one side of the threaded sleeve (26); 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 plugged into 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, and the bottom end of the first oblique connecting rod (33) being rotatably connected to a shift 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 mobile frame (5) is rotatably connected to a reciprocating screw (28) located inside the second frame (25) through a rotating shaft, the bottom end of the reciprocating screw (28) is installed with a second transmission spur gear (27) located below the mobile frame (5), and a second rack (13) is installed on one side of the bottom of the L-shaped frame (1); The bottom of the second frame (25) is provided with a crescent pin that matches the reciprocating screw (28), and the top of the second frame (25) is in contact with the inner wall of the first frame (23); 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 shift ring (30) are coaxial; The bottle body rotating member comprises a first fixed ring (19) mounted on the top of the mobile 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 mobile 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); The tilting 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), and extension frames (14) are connected to both sides of the movable shaft (15). A mounting seat (10) is installed at one end of the extension frame (14) away from the L-shaped frame (1), a base (12) is provided 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), and a second motor (16) is installed inside the mounting seat (10), an output end of the second motor (16) is connected to an extension rod (41), and one end of the extension rod (41) is installed with a worm (42) meshing with the worm gear (43).

2. A plastic recycling pretreatment device according to claim 1, 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).

3. A plastic recycling pretreatment device according to claim 2, characterized in that: The maximum 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).

4. A plastic recycling pretreatment device according to claim 3, characterized in that: The length of the extension frame (14) is greater than the bottom width of the L-shaped frame (1).

5. A pretreatment method for plastic recycling, characterized in that: The plastic recycling pretreatment device according to claim 4 comprises the following steps: S1: First, a plastic bottle with a bottle cap is placed upside down on the inner side of the clamping ring (20), and then the first motor (2) is started. The first motor (2) drives the screw rod (4) to rotate, so that the screw sleeve (26) limited by the guide rod (3) moves horizontally along the screw rod (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 movable 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 by 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 by 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 by 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 placed upside down on the inner side of the clamping ring (20).

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