Waste plastic recovery device for plastic processing

Abstract

The invention discloses a waste plastic recovery device for plastic processing, and particularly relates to the technical field of waste plastic recovery, the waste plastic recovery device comprises a first crushing frame, a second crushing frame is arranged at the bottom end of the first crushing frame, a third crushing frame is arranged at the bottom end of the second crushing frame, and a melting frame is arranged at the bottom end of the third crushing frame. A first rotating rod, a second crushing frame and a third crushing frame are driven to rotate through a power transmission assembly, and then a first crushing cutter, a second crushing cutter and a third crushing cutter are driven to rotate, so that waste plastic passes through the first crushing frame, the second crushing frame and the third crushing frame; the first smashing cutter, the second smashing cutter and the third smashing cutter can cut and crush waste plastic for three times, so that cutting and crushing of the waste plastic are complete and thorough, the situation that large plastic blocks are not completely cut and crushed is avoided, the subsequent plastic particle melting processing efficiency is effectively improved, and the smashing and melting effect is good.

Description

Technical Field

[0001] The present invention relates to the technical field of waste plastic recycling, and particularly relates to a waste plastic recycling device for plastic processing. Background Art

[0002] The recycling of waste plastics for plastic processing is an important environmental protection action, which can effectively reduce plastic pollution and provide reusable resources. The collected plastic waste usually needs to be sent to special equipment for crushing or shredding. This step physically decomposes the waste plastics into smaller particles or chunks for subsequent processing and treatment. The shredded plastics are fed into a melting device, where the plastics are converted into plastic liquid by heating and melting for subsequent reuse in molding.

[0003] Currently, when recycling waste plastics for plastic processing, a crusher is usually used to crush the plastics. However, when using a crusher for crushing, most of them only undergo one-time crushing, so there will be some large plastics that are not completely crushed, which will affect the overall melting efficiency during subsequent melting processing, and the effect of crushing and melting is not good enough. Summary of the Invention

[0004] The purpose of the present invention is to provide a waste plastic recycling device for plastic processing to solve the above deficiencies in the technology.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A waste plastic recycling device for plastic processing, comprising: A first crushing frame, a second crushing frame is provided at the bottom end of the first crushing frame, a third crushing frame is provided at the bottom end of the second crushing frame, and a melting frame is provided at the bottom end of the third crushing frame; A first rotating rod, the first rotating rod is arranged inside the first crushing frame, the top end of the first rotating rod passes through the top end of the first crushing frame and is rotatably connected to the top end of the first crushing frame through a bearing, a power transmission component is connected to the top end of the first rotating rod, and a plurality of first crushing knives are fixedly arranged at the outer end of the first rotating rod; A first fixed disk, the first fixed disk is fixedly arranged inside the second crushing frame, a plurality of second crushing knives are fixedly arranged at the top end of the first fixed disk, the outlet at the bottom end of the first crushing frame is located between the plurality of second crushing knives, and a plurality of first material leakage openings are formed at the top end of the first fixed disk, and the plurality of first material leakage openings are arranged outside the plurality of second crushing knives; A second fixed disk, the second fixed disk is fixed inside the third crushing frame, the top end of the second fixed disk is an inclined surface from the outside to the inside, a plurality of third crushing knives are fixedly arranged at the top end of the second fixed disk, the plurality of third crushing knives are arranged at the bottom of the plurality of first material leakage openings, and a second material leakage opening is formed in the second fixed disk.

[0006] Preferably, a first annular chute is provided on the inner wall of the top end of the second pulverizing frame, and a first annular slider is fixedly provided on the outer side of the bottom end of the first pulverizing frame. The first annular slider is arranged inside the first annular chute, which facilitates the rotational connection between the first pulverizing frame and the second pulverizing frame; Both the bottom end of the second pulverizing frame and the top end of the melting frame are provided with second annular chutes, and second annular sliders are fixedly provided on both the top end and the bottom end of the third pulverizing frame. The two second annular sliders are respectively arranged inside the two second annular chutes, which facilitates the rotational connection between the second pulverizing frame and the third pulverizing frame.

[0007] Preferably, a support frame is provided on one side of the first pulverizing frame and the melting frame, and the first pulverizing frame and the melting frame are respectively fixedly arranged at the top end and the bottom end of the support frame, which facilitates the fixed support of the first pulverizing frame and the melting frame.

[0008] Preferably, the power transmission assembly includes a motor fixedly arranged at the top end of the support frame. The output shaft of the motor is connected with a second rotating rod. The bottom end of the second rotating rod passes through the top end of the support frame and extends to one side of the first pulverizing frame, the second pulverizing frame and the third pulverizing frame. The second rotating rod is rotationally connected with the support frame through a bearing. A synchronous wheel is fixedly provided on the outer side of the top end of both the second rotating rod and the first rotating rod. The two synchronous wheels are connected by a synchronous belt, which facilitates driving the first rotating rod and a plurality of first pulverizing knives to rotate; A first gear and a third gear are fixedly arranged at the outer end of the second rotating rod. The third gear is arranged at the bottom of the first gear. A second gear is fixedly arranged at the outer end of the second pulverizing frame. The first gear and the second gear are meshed with each other. A third rotating rod is arranged on one side of the second rotating rod close to the third pulverizing frame. A fourth gear is fixedly arranged at the outer end of the third rotating rod. A fifth gear is fixedly arranged at the outer end of the third pulverizing frame. The fourth gear is arranged between the third gear and the fifth gear and is meshed with the third gear and the fifth gear respectively, which facilitates driving the second pulverizing frame and the third pulverizing frame to rotate relatively.

[0009] Preferably, a feeding frame communicated with the inside thereof is fixedly arranged at the top end of the first pulverizing frame, and a discharging frame communicated with the inside thereof is fixedly arranged at the bottom of the outer end of the melting frame. A valve is arranged on the discharging frame, which facilitates adding raw materials into the first pulverizing frame and simultaneously facilitates discharging the melted plastic liquid from the inside of the melting frame.

[0010] Preferably, an inclined heating plate is fixedly arranged inside the melting frame, and an inclined heat conducting plate is arranged at the top end of the inclined heating plate. The inclined heat conducting plate is arranged at one end where the discharging frame extends into the melting frame, which facilitates heating and melting the plastic after being pulverized three times.

[0011] Preferably, a collection box is fixedly provided at the discharge end of the discharge frame. A partition plate is fixedly provided inside the collection box. The partition plate divides the interior of the collection box into a plastic liquid collection cavity and an impurity collection cavity. A filter plate is fixedly provided inside the plastic liquid collection cavity. A cleaning assembly is provided on top of the filter plate, facilitating the filtration and collection of the melted plastic liquid.

[0012] Preferably, the cleaning assembly includes a movable cleaning plate provided on top of the filter plate. A scraping plate is fixedly provided at the bottom end of the movable cleaning plate. One fixed vertical plate is fixedly provided on one side of the top end of the collection box and the top end of the discharge frame respectively. A reciprocating lead screw is provided between the two fixed vertical plates. One end of the reciprocating lead screw passes through the movable cleaning plate and is threadedly connected to the movable cleaning plate. A movable block is provided on one side of the fixed vertical plate located on the discharge frame. A fourth rotating rod is rotatably connected to the movable block through a bearing. The bottom end of the fourth rotating rod extends to the bottom of the movable block and is fixedly provided with a first bevel gear. A second bevel gear is fixedly provided on the outer part of one end of the reciprocating lead screw. The first bevel gear is provided on top of the second bevel gear and meshes with the second bevel gear. T-shaped grooves are respectively opened on the opposite sides of the two fixed vertical plates. T-shaped blocks are provided inside the T-shaped grooves. Both ends of the reciprocating lead screw are rotatably connected to the two T-shaped blocks respectively. The movable block is fixedly connected to one of the T-shaped blocks. A guide rod is fixedly provided between one end of the movable block away from the T-shaped block and one side of the fixed vertical plate on the collection box. One end of the guide rod penetrates through the movable cleaning plate. The guide rod is provided on top of the reciprocating lead screw, facilitating the scraping of impurities on the top end of the filter plate.

[0013] Preferably, a fixed cross plate is fixedly provided at the top end of the fixed vertical plate on the discharge frame. The bottom end of the third rotating rod is rotatably connected to the top end of the fixed cross plate through a bearing. The bottom end of the second rotating rod passes through the fixed cross plate and is rotatably connected to the fixed cross plate. A connecting square rod is fixedly provided at the top end of the fourth rotating rod. A connecting square groove is opened at the bottom end of the second rotating rod. The connecting square rod is provided inside the connecting square groove. An electric telescopic rod is fixedly provided on the fixed cross plate. The electric telescopic rod is provided between the third rotating rod and the second rotating rod. The bottom end of the electric telescopic rod is fixedly connected to the top end of the movable block, facilitating the up and down movement of the scraping structure.

[0014] Preferably, a first discharge port is fixedly provided at the bottom end of the plastic liquid collection cavity, and a second discharge port is fixedly provided at the bottom end of the impurity collection cavity, facilitating the discharge of the materials inside the plastic liquid collection cavity and the impurity collection cavity.

[0015] In the above technical solution, the technical effects and advantages provided by the present invention are: 1. The first rotating rod, the second crushing frame, and the third crushing frame are driven to rotate by the power transmission assembly, and then the first crushing knife, the second crushing knife, and the third crushing knife are driven to rotate. In this way, when the waste plastic passes through the inside of the first crushing frame, the second crushing frame, and the third crushing frame, the first crushing knife, the second crushing knife, and the third crushing knife will cut and crush the waste plastic three times, making the cutting and crushing of the waste plastic relatively complete and thorough, avoiding the situation of incomplete cutting and crushing of large pieces of plastic, effectively improving the efficiency of subsequent plastic particle melting and processing, and achieving better crushing and melting effects. 2. The melted plastic liquid is filtered by the filter plate, and the impurities in the plastic liquid can be filtered at the top of the filter plate. Then, the movable cleaning plate and the scraper that can be adjusted up and down are used to scrape the impurities at the top of the filter plate, and the impurities in the plastic liquid can be scraped into the impurity collection cavity. Moreover, the movable cleaning plate and the scraper can be adjusted up and down during the reciprocating movement, avoiding the situation of impurities being brought back, and having strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a three-dimensional sectional view structure diagram of the first crushing frame, the second crushing frame, the third crushing frame, and the melting frame of the present invention; Figure 3 It is a three-dimensional sectional view structure diagram of the first crushing frame of the present invention; Figure 4 It is a three-dimensional sectional view structure diagram of the second crushing frame of the present invention; Figure 5 It is a three-dimensional structure diagram of the first fixed disk and the second crushing knife of the present invention; Figure 6 It is a three-dimensional sectional view structure diagram of the third crushing frame of the present invention; Figure 7 It is a three-dimensional structure diagram of the second fixed disk and the third crushing knife of the present invention; Figure 8 It is a three-dimensional sectional view structure diagram of the melting frame of the present invention; Figure 9 It is a three-dimensional structure diagram of the power transmission assembly of the present invention; Figure 10 It is a partial three-dimensional sectional view structure diagram of the second rotating rod of the present invention; Figure 11 Schematic diagram of the three-dimensional sectional structure of the collection box of the present invention; Figure 12 of the present invention Figure 11 Schematic diagram of the enlarged structure of A in

[0018] Explanation of reference numerals: 1. First crushing box; 2. Second crushing box; 3. Third crushing box; 4. Melting box; 5. First rotating rod; 6. First crushing knife; 7. First fixed disk; 8. Second crushing knife; 9. First material leakage port; 10. Second fixed disk; 11. Third crushing knife; 12. Second material leakage port; 13. First annular sliding groove; 14. First annular sliding block; 15. Second annular sliding groove; 16. Second annular sliding block; 17. Support frame; 18. Motor; 19. Second rotating rod; 20. Synchronous pulley; 21. Synchronous belt; 22. First gear; 23. Second gear; 24. Third gear; 25. Third rotating rod; 26. Fourth gear; 27. Fifth gear; 28. Feeding box; 29. Discharge box; 30. Inclined heating plate; 31. Inclined heat conducting plate; 32. Collection box; 33. Partition plate; 34. Plastic liquid collection cavity; 35. Impurity collection cavity; 36. Filter plate; 37. Movable cleaning plate; 38. Scraper; 39. Fixed vertical plate; 40. Reciprocating lead screw; 41. Movable block; 42. Fourth rotating rod; 43. First bevel gear; 44. Second bevel gear; 45. T-shaped groove; 46. T-shaped block; 47. Guide rod; 48. Fixed horizontal plate; 49. Connecting square rod; 50. Connecting square groove; 51. Electric telescopic rod; 52. First discharge port; 53. Second discharge port. Detailed implementation manners

[0019] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further introduced in detail below with reference to the accompanying drawings.

[0020] The present invention provides a waste plastic recycling device for plastic processing as shown in Figures 1 to 9 and includes: A first crushing box 1, a second crushing box 2 is provided at the bottom end of the first crushing box 1, a third crushing box 3 is provided at the bottom end of the second crushing box 2, and a melting box 4 is provided at the bottom end of the third crushing box 3; A first rotating rod 5, the first rotating rod 5 is arranged inside the first crushing box 1, the top end of the first rotating rod 5 passes through the top end of the first crushing box 1 and is rotatably connected to the top end of the first crushing box 1 through a bearing, the top end of the first rotating rod 5 is connected with a power transmission component, and a plurality of first crushing knives 6 are fixedly arranged at the outer end of the first rotating rod 5; The first fixed disk 7 is fixedly arranged inside the second crushing frame 2. A plurality of second crushing blades 8 are fixedly arranged at the top end of the first fixed disk 7. The bottom outlet of the first crushing frame 1 is located between the plurality of second crushing blades 8. A plurality of first material leakage openings 9 are formed at the top end of the first fixed disk 7, and the plurality of first material leakage openings 9 are arranged outside the plurality of second crushing blades 8; The second fixed disk 10 is fixed inside the third crushing frame 3. The top end of the second fixed disk 10 is an inclined surface from the outside to the inside. A plurality of third crushing blades 11 are fixedly arranged at the top end of the second fixed disk 10. The plurality of third crushing blades 11 are arranged at the bottom of the plurality of first material leakage openings 9. A second material leakage opening 12 is formed in the second fixed disk 10.

[0021] A first annular sliding groove 13 is formed in the inner wall of the top end of the second crushing frame 2. A first annular sliding block 14 is fixedly arranged on the outer side of the bottom end of the first crushing frame 1, and the first annular sliding block 14 is arranged inside the first annular sliding groove 13; Second annular sliding grooves 15 are formed at the bottom end of the second crushing frame 2 and the top end of the melting frame 4. Second annular sliding blocks 16 are fixedly arranged at the top end and the bottom end of the third crushing frame 3, and the two second annular sliding blocks 16 are respectively arranged inside the two second annular sliding grooves 15.

[0022] A support frame 17 is arranged on one side of the first crushing frame 1 and the melting frame 4. The first crushing frame 1 and the melting frame 4 are respectively fixedly arranged at the top end and the bottom end of the support frame 17. The power transmission assembly includes a motor 18 fixedly arranged at the top end of the support frame 17. The output shaft of the motor 18 is connected with a second rotating rod 19. The bottom end of the second rotating rod 19 passes through the top end of the support frame 17 and extends to one side of the first crushing frame 1, the second crushing frame 2 and the third crushing frame 3. The second rotating rod 19 is rotationally connected with the support frame 17 through a bearing. A synchronous pulley 20 is fixedly arranged on the outer side of the top end of the second rotating rod 19 and the outer side of the top end of the first rotating rod 5, and the two synchronous pulleys 20 are connected by a synchronous belt 21; A first gear 22 and a third gear 24 are fixedly arranged at the outer end of the second rotating rod 19. The third gear 24 is arranged at the bottom of the first gear 22. A second gear 23 is fixedly arranged at the outer end of the second crushing frame 2. The first gear 22 and the second gear 23 are meshed with each other. A third rotating rod 25 is arranged on one side of the second rotating rod 19 close to the third crushing frame 3. A fourth gear 26 is fixedly arranged at the outer end of the third rotating rod 25. A fifth gear 27 is fixedly arranged at the outer end of the third crushing frame 3. The fourth gear 26 is arranged between the third gear 24 and the fifth gear 27 and is meshed with the third gear 24 and the fifth gear 27 respectively.

[0023] At the top of the first crushing frame 1, a feeding frame 28 is fixedly arranged and is in communication with its interior. At the bottom of the outer end of the melting frame 4, a discharge frame 29 is fixedly arranged and is in communication with its interior. A valve is provided on the discharge frame 29. Inside the melting frame 4, an inclined heating plate 30 is fixedly arranged. At the top of the inclined heating plate 30, an inclined heat conducting plate 31 is provided. The inclined heat conducting plate 31 is arranged at one end where the discharge frame 29 extends into the interior of the melting frame 4.

[0024] Add the waste plastic into the interior of the first crushing frame 1 from the feeding frame 28. Start the motor 18. The output shaft of the motor 18 drives the second rotating rod 19 to rotate. The second rotating rod 19 drives the first rotating rod 5 to rotate through two synchronous wheels 20 and a synchronous belt 21. The first rotating rod 5 drives a plurality of first crushing knives 6 to rotate. The plurality of rotating first crushing knives 6 will perform a primary cutting and crushing on the waste plastic entering the interior of the first crushing frame 1. The waste plastic after the primary cutting and crushing will fall to the middle of the first fixed disk 7 inside the second crushing frame 2. When the second rotating rod 19 rotates, it will simultaneously drive the first gear 22 to rotate. The first gear 22 drives the second gear 23 to rotate. The second gear 23 drives the second crushing frame 2 to rotate. The second crushing frame 2 drives the first fixed disk 7 inside it to rotate. When the first fixed disk 7 rotates, a centrifugal force will be generated. The waste plastic on the first fixed disk 7 will be thrown towards its edge under the action of the centrifugal force. During the process of the waste plastic quickly moving from the middle to the edge, a plurality of second crushing knives 8 will perform a secondary cutting and crushing on the plastic. The plastic after the secondary cutting and crushing will fall into the interior of the third crushing frame 3 through a plurality of first material leakage openings 9. When the second rotating rod 19 rotates, it will simultaneously drive the third gear 24 to rotate. The third gear 24 drives the fourth gear 26 to rotate. The fourth gear 26 drives the fifth gear 27 to rotate. The fifth gear 27 drives the third crushing frame 3 to rotate. The rotation direction of the third crushing frame 3 is opposite to that of the second crushing frame 2. The third crushing frame 3 drives the second fixed disk 10 inside it to rotate. The second fixed disk 10 drives a plurality of third crushing knives 11 to rotate. The waste plastic after the secondary cutting and crushing will fall between the plurality of third crushing knives 11 through the first material leakage openings 9. The plurality of third crushing knives 11 will perform a tertiary cutting and crushing on the waste plastic. The waste plastic after the tertiary cutting and crushing will fall into the interior of the melting frame 4 through the second material leakage opening 12 for heating and melting. The waste plastic falling into the interior of the melting frame 4 will be cut and crushed relatively completely and thoroughly.

[0025] In the present invention, the power transmission assembly drives the first rotating rod 5, the second crushing frame 2, and the third crushing frame 3 to rotate, thereby driving the first crushing knife 6, the second crushing knife 8, and the third crushing knife 11 to rotate. In this way, when the waste plastic passes through the interiors of the first crushing frame 1, the second crushing frame 2, and the third crushing frame 3, the first crushing knife 6, the second crushing knife 8, and the third crushing knife 11 will cut and crush the waste plastic three times, making the cutting and crushing of the waste plastic relatively complete and thorough, avoiding the situation where large pieces of plastic are not completely cut and crushed, effectively improving the efficiency of subsequent melting and processing of plastic particles, and having a better effect of crushing and melting. This embodiment specifically solves the problem existing in the prior art that when recycling waste plastic for plastic processing, a crusher is usually used to crush the plastic. However, when using a crusher for crushing, most of them only go through one crushing, so there will be some large pieces of plastic that are not completely crushed, which will affect the overall melting efficiency during subsequent melting and processing, and the effect of crushing and melting is not good enough.

[0026] The present invention provides a waste plastic recycling device for plastic processing as shown in Figure 1 and Figures 10 to 12 The discharging end of the discharging frame 29 is fixedly provided with a collecting frame 32. Inside the collecting frame 32, a partition plate 33 is fixedly provided. The partition plate 33 divides the interior of the collecting frame 32 into a plastic liquid collecting cavity 34 and an impurity collecting cavity 35. The bottom end of the plastic liquid collecting cavity 34 is fixedly provided with a first discharging port 52, and the bottom end of the impurity collecting cavity 35 is fixedly provided with a second discharging port 53. A filter plate 36 is fixedly provided inside the plastic liquid collecting cavity 34, and a cleaning assembly is provided on the top of the filter plate 36.

[0027] The cleaning component includes a movable cleaning plate 37 provided at the top of the filter plate 36. A scraping plate 38 is fixedly provided at the bottom end of the movable cleaning plate 37. A fixed vertical plate 39 is fixedly provided on one side of the top end of the collection box 32 and at the top end of the discharge box 29. A reciprocating lead screw 40 is provided between the two fixed vertical plates 39. One end of the reciprocating lead screw 40 passes through the movable cleaning plate 37 and is threadedly connected to the movable cleaning plate 37. On one side of the fixed vertical plate 39 located on the discharge box 29, there is a movable block 41. A fourth rotating rod 42 is rotatably connected to the movable block 41 through a bearing. The bottom end of the fourth rotating rod 42 extends to the bottom of the movable block 41 and is fixedly provided with a first bevel gear 43. A second bevel gear 44 is fixedly provided on the outer part of one end of the reciprocating lead screw 40. The first bevel gear 43 is provided on the top of the second bevel gear 44 and meshes with the second bevel gear 44. T-shaped grooves 45 are formed on the opposite sides of the two fixed vertical plates 39. T-shaped blocks 46 are arranged inside the T-shaped grooves 45. Both ends of the reciprocating lead screw 40 are rotatably connected to the two T-shaped blocks 46. The movable block 41 is fixedly connected to one of the T-shaped blocks 46. A guide rod 47 is fixedly provided between one end of the movable block 41 away from the T-shaped block 46 and one side of the fixed vertical plate 39 on the collection box 32. One end of the guide rod 47 penetrates through the movable cleaning plate 37. The guide rod 47 is provided on the top of the reciprocating lead screw 40.

[0028] A fixed cross plate 48 is fixedly provided at the top end of the fixed vertical plate 39 on the discharge box 29. The bottom end of the third rotating rod 25 is rotatably connected to the top end of the fixed cross plate 48 through a bearing. The bottom end of the second rotating rod 19 passes through the fixed cross plate 48 and is rotatably connected to the fixed cross plate 48. The top end of the fourth rotating rod 42 is fixedly provided with a connecting square rod 49. A connecting square groove 50 is formed at the bottom end of the second rotating rod 19. The connecting square rod 49 is arranged inside the connecting square groove 50. An electric telescopic rod 51 is fixedly provided on the fixed cross plate 48. The electric telescopic rod 51 is arranged between the third rotating rod 25 and the second rotating rod 19. The bottom end of the electric telescopic rod 51 is fixedly connected to the top end of the movable block 41.

[0029] The waste plastics that fall into the melting frame 4 will be heated and melted. After the plastics are melted, the valve on the discharge frame 29 is opened, and the melted plastic liquid enters the inside of the collection frame 32 through the discharge frame 29. The melted plastic liquid will fall onto the filter plate 36. The filter plate 36 will filter the plastic liquid. The liquid will fall into the plastic liquid collection cavity 34, while the impurities in the plastics will be filtered on the top of the filter plate 36. When the valve on the discharge frame 29 is closed, the electric telescopic rod 51 is started. The electric telescopic rod 51 drives the movable block 41 to move downward. The movable block 41 drives the T-shaped block 46 connected to it to move downward. The T-shaped block 46 drives structures such as the reciprocating lead screw 40 and the guide rod 47 to move downward. At this time, the fourth rotating rod 42 drives the connecting square rod 49 to move out of the connecting square groove 50. The reciprocating lead screw 40 drives the movable cleaning plate 37 and the scraper 38 to move downward. After the scraper 38 reaches the top of the filter plate 36, since the second rotating rod 19 will drive the fourth rotating rod 42 to rotate through the connecting square rod 49, the fourth rotating rod 42 drives the first bevel gear 43 to rotate. The first bevel gear 43 drives the second bevel gear 44 to rotate. The second bevel gear 44 drives the reciprocating lead screw 40 to rotate. Since the reciprocating lead screw 40 is threadedly connected to the movable cleaning plate 37, the movable cleaning plate 37 and the scraper 38 move on the top of the filter plate 36 as the reciprocating lead screw 40 rotates. By controlling the positions of the movable cleaning plate 37 and the scraper 38 when they descend, the movable cleaning plate 37 and the scraper 38 will scrape the impurities on the top of the filter plate 36 into the impurity collection cavity 35. When the movable cleaning plate 37 and the scraper 38 move in the direction close to the discharge frame 29, the electric telescopic rod 51 drives structures such as the movable block 41, the reciprocating lead screw 40, the movable cleaning plate 37 and the scraper 38 to move upward. Then when the movable cleaning plate 37 and the scraper 38 move in the direction of the impurity collection cavity 35, the movable cleaning plate 37 and the scraper 38 are lowered to the top of the filter plate 36 again. In this way, the reciprocating movable cleaning plate 37 and the scraper 38 can scrape the impurities on the top of the filter plate 36 into the impurity collection cavity 35, and it can be avoided that the movable cleaning plate 37 and the scraper 38 push the impurities back to one end of the discharge frame 29. In the present invention, the melted plastic liquid is filtered by the filter plate 36, and the impurities in the plastic liquid can be filtered on the top of the filter plate 36. Then, the impurities on the top of the filter plate 36 are scraped by the movable cleaning plate 37 and the scraper 38 that can be adjusted up and down. The impurities in the plastic liquid can be scraped into the impurity collection cavity 35, and the movable cleaning plate 37 and the scraper 38 can be adjusted up and down during the reciprocating movement, avoiding the situation that the impurities are brought back, and the practicability is relatively strong.

[0030] Only certain exemplary embodiments of the present invention have been described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of the claims of the present invention.

Claims

1. An apparatus for recycling waste plastics used in plastic processing, characterized in that, Comprising: A first crushing frame (1), a second crushing frame (2) is provided at the bottom end of the first crushing frame (1), a third crushing frame (3) is provided at the bottom end of the second crushing frame (2), and a melting frame (4) is provided at the bottom end of the third crushing frame (3); A first rotating rod (5), the first rotating rod (5) is arranged inside the first crushing frame (1), the top end of the first rotating rod (5) passes through the top end of the first crushing frame (1) and is rotatably connected to the top end of the first crushing frame (1) through a bearing, a power transmission assembly is connected to the top end of the first rotating rod (5), and a plurality of first crushing knives (6) are fixedly arranged on the outer end of the first rotating rod (5); A first fixed disk (7), the first fixed disk (7) is fixedly arranged inside the second crushing frame (2), a plurality of second crushing knives (8) are fixedly arranged at the top end of the first fixed disk (7), the outlet at the bottom end of the first crushing frame (1) is located between the plurality of second crushing knives (8), a plurality of first material leakage openings (9) are formed at the top end of the first fixed disk (7), and the plurality of first material leakage openings (9) are arranged outside the plurality of second crushing knives (8); A second fixed disk (10), the second fixed disk (10) is fixed inside the third crushing frame (3), the top end of the second fixed disk (10) is an inclined surface from the outside to the inside, a plurality of third crushing knives (11) are fixedly arranged at the top end of the second fixed disk (10), the plurality of third crushing knives (11) are arranged at the bottom of the plurality of first material leakage openings (9), and a second material leakage opening (12) is formed in the second fixed disk (10).

2. The waste plastic recycling device for plastic processing according to claim 1, characterized in that: A first annular sliding groove (13) is formed in the inner wall of the top end of the second crushing frame (2), a first annular sliding block (14) is fixedly arranged on the outer side of the bottom end of the first crushing frame (1), and the first annular sliding block (14) is arranged inside the first annular sliding groove (13); Second annular sliding grooves (15) are formed at the bottom end of the second crushing frame (2) and the top end of the melting frame (4), second annular sliding blocks (16) are fixedly arranged at the top end and the bottom end of the third crushing frame (3), and the two second annular sliding blocks (16) are respectively arranged inside the two second annular sliding grooves (15).

3. The waste plastic recycling device for plastic processing according to claim 1, characterized in that: A support frame (17) is arranged on one side of the first crushing frame (1) and the melting frame (4), and the first crushing frame (1) and the melting frame (4) are respectively fixedly arranged at the top end and the bottom end of the support frame (17).

4. An apparatus for recycling waste plastics used in plastic processing according to claim 3, characterized in that: The power transmission assembly includes a motor (18) fixedly arranged at the top end of the support frame (17), the output shaft of the motor (18) is connected to a second rotating rod (19), the bottom end of the second rotating rod (19) passes through the top end of the support frame (17) and extends to one side of the first crushing frame (1), the second crushing frame (2) and the third crushing frame (3), the second rotating rod (19) is rotatably connected to the support frame (17) through a bearing, a synchronous wheel (20) is fixedly arranged on the outer side of the top end of the second rotating rod (19) and the outer side of the top end of the first rotating rod (5), and the two synchronous wheels (20) are connected by a synchronous belt (21); A first gear (22) and a third gear (24) are fixedly arranged at the outer end of the second rotating rod (19). The third gear (24) is arranged at the bottom of the first gear (22). A second gear (23) is fixedly arranged at the outer end of the second crushing frame (2). The first gear (22) meshes with the second gear (23). A third rotating rod (25) is arranged on one side of the second rotating rod (19) close to the third crushing frame (3). A fourth gear (26) is fixedly arranged at the outer end of the third rotating rod (25). A fifth gear (27) is fixedly arranged at the outer end of the third crushing frame (3). The fourth gear (26) is arranged between the third gear (24) and the fifth gear (27) and meshes with the third gear (24) and the fifth gear (27) respectively.

5. The waste plastic recycling device for plastic processing according to claim 4, characterized in that: A feeding frame (28) communicating with the inside thereof is fixedly arranged at the top end of the first crushing frame (1). An outlet frame (29) communicating with the inside thereof is fixedly arranged at the bottom of the outer end of the melting frame (4). A valve is arranged on the outlet frame (29).

6. The waste plastic recycling device for plastic processing according to claim 5, wherein: An inclined heating plate (30) is fixedly arranged inside the melting frame (4). An inclined heat conducting plate (31) is arranged at the top end of the inclined heating plate (30). The inclined heat conducting plate (31) is arranged at one end where the outlet frame (29) extends into the inside of the melting frame (4).

7. An apparatus for recycling waste plastics used in plastic processing according to claim 6, characterized in that: A collecting frame (32) is fixedly arranged at the discharging end of the outlet frame (29). A partition plate (33) is fixedly arranged inside the collecting frame (32). The partition plate (33) divides the inside of the collecting frame (32) into a plastic liquid collecting cavity (34) and an impurity collecting cavity (35). A filter plate (36) is fixedly arranged inside the plastic liquid collecting cavity (34). A cleaning assembly is arranged at the top of the filter plate (36).

8. An apparatus for recycling waste plastics used in plastic processing according to claim 7, wherein: The cleaning component includes a movable cleaning plate (37) provided at the top of the filter plate (36). A scraper (38) is fixedly provided at the bottom end of the movable cleaning plate (37). A fixed vertical plate (39) is fixedly provided on one side of the top end of the collection box (32) and at the top end of the discharge box (29). A reciprocating screw rod (40) is provided between the two fixed vertical plates (39). One end of the reciprocating screw rod (40) passes through the movable cleaning plate (37) and is threadedly connected to the movable cleaning plate (37). On one side of the fixed vertical plate (39) located on the discharge box (29), there is a movable block (41). A fourth rotating rod (42) is rotatably connected to the movable block (41) through a bearing. The bottom end of the fourth rotating rod (42) extends to the bottom of the movable block (41) and is fixedly provided with a first bevel gear (43). A second bevel gear (44) is fixedly provided on the outer part of one end of the reciprocating screw rod (40). The first bevel gear (43) is provided on the top of the second bevel gear (44) and meshes with the second bevel gear (44). T-shaped grooves (45) are formed on the opposite sides of the two fixed vertical plates (39). T-shaped blocks (46) are provided inside the T-shaped grooves (45). Both ends of the reciprocating screw rod (40) are rotatably connected to the two T-shaped blocks (46). The movable block (41) is fixedly connected to one of the T-shaped blocks (46). A guide rod (47) is fixedly provided between one end of the movable block (41) away from the T-shaped block (46) and one side of the fixed vertical plate (39) on the collection box (32). One end of the guide rod (47) penetrates through the movable cleaning plate (37). The guide rod (47) is provided on the top of the reciprocating screw rod (40).

9. The waste plastic recycling device for plastic processing according to claim 8, characterized in that: A fixed horizontal plate (48) is fixedly provided at the top end of the fixed vertical plate (39) on the discharge box (29). The bottom end of the third rotating rod (25) is rotatably connected to the top end of the fixed horizontal plate (48) through a bearing. The bottom end of the second rotating rod (19) passes through the fixed horizontal plate (48) and is rotatably connected to the fixed horizontal plate (48). A connecting square rod (49) is fixedly provided at the top end of the fourth rotating rod (42). A connecting square groove (50) is formed at the bottom end of the second rotating rod (19). The connecting square rod (49) is provided inside the connecting square groove (50). An electric telescopic rod (51) is fixedly provided on the fixed horizontal plate (48). The electric telescopic rod (51) is provided between the third rotating rod (25) and the second rotating rod (19). The bottom end of the electric telescopic rod (51) is fixedly connected to the top end of the movable block (41).

10. An apparatus for recycling waste plastics for plastic processing according to claim 7, characterized in that: A first discharge port (52) is fixedly provided at the bottom end of the plastic liquid collection cavity (34). A second discharge port (53) is fixedly provided at the bottom end of the impurity collection cavity (35).

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