A plastic film recycling and crushing device

Abstract

The present invention provides a plastic film recycling and crushing device, comprising a frame, a crusher mounted on the frame, and a guiding mechanism for feeding the plastic film into the crusher, wherein the crusher comprises a crushing box and two groups of crushing rollers arranged in the crushing box, wherein the guiding mechanism comprises a guiding platform, a pushing assembly arranged on the guiding platform for pulling the plastic film to move, and a material guide box for guiding the plastic film into the crushing box is provided on one side of the guiding platform. A guiding mechanism is installed on one side of the crusher, and the guiding mechanism pulls the plastic film forward through a push hook on a conveyor belt, and a downward pressure cylinder can control the pressing platform to descend, so that the plastic film is attached to the guiding platform, so that the push hook can hook the plastic film. Driving rollers are also provided on both sides of the guiding platform, and the driving rollers are respectively arranged in cooperation with a first pressing roller and a second pressing roller to increase the conveying thrust of the plastic film, so that the plastic film can be introduced into the crusher through the material guide box, and the plastic film is introduced into the crusher in an orderly manner.

Description

Technical Field

[0001] The invention relates to the technical field of film recovery equipment, in particular to a plastic film recovery and crushing device. Background Art

[0002] Plastic films are widely used in industry, agriculture, logistics, warehousing, daily necessities and other industries. As the consumption of film products continues to increase, waste films are also increasing. If the application and post-processing of waste films are not appropriate, it will inevitably damage the environment and endanger people's health. Therefore, it is necessary to recycle and reuse waste films to achieve the purpose of turning waste into treasure.

[0003] Existing films need to be crushed after recycling, so as to facilitate subsequent cleaning, draining, drying and re-granulation; most of the existing crushing processes are to pile the film on the crusher, and use the two sets of knife rollers in the crusher to rotate towards each other to pull the film into the groove between the two sets of knife rollers for crushing. However, due to the light texture and good flexibility of the film, it is easy to stretch, and the unfolded volume of the film is large, which is easy to block the feed port during crushing. After the film is introduced into the crusher, it is also easy to be pulled and broken during the crushing process, resulting in the inability of subsequent films to follow up, and there is a greater risk of manually feeding it into the crusher, which in turn affects the crushing efficiency.

[0004] In view of this, in order to overcome the above technical problems, the present invention proposes a plastic film recycling and crushing device to solve the above technical problems. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a plastic film recycling and crushing device to solve the problems raised in the above background technology.

[0006] The technical problem solved by the present invention is achieved by the following technical scheme: a plastic film recycling and crushing device, comprising a frame, a crusher installed on the frame, and a guiding mechanism for feeding the plastic film into the crusher, the crusher comprising a crushing box and two groups of crushing rollers arranged in the crushing box, the guiding mechanism comprising a guiding platform, a pushing assembly arranged on the guiding platform for pulling the plastic film to move, a material guide box for guiding the plastic film into the crushing box is provided on one side of the guiding platform, the lower end of the material guide box is inserted into the crushing box and is located in the groove between the two groups of crushing rollers, so that the plastic film is pushed into the groove in an orderly manner for crushing; the pushing assembly comprises conveyor belts arranged in parallel on both sides of the guiding platform and a driving member for driving the conveyor belts to circulate, and push hooks are arranged at intervals on the conveyor belt to hook the plastic film, thereby pulling the plastic film forward and feeding it into the material guide box.

[0007] As a further solution of the present invention: the driving member in the pushing assembly is built-in and installed in the guide platform, and the driving member includes a driving shaft arranged on both sides of the guide platform, and both ends of the driving shaft are rotatably installed on the bearing seats and fixed to the inner cavity wall of the guide platform through the bearing seats, and first pulleys are arranged on both sides of the driving shaft corresponding to the conveyor belt, and both ends of the conveyor belt are respectively sleeved on the first pulleys, and the upper end of the guide platform is provided with a slot corresponding to the first pulley, and the upper end of the first pulley extends out of the slot, so that the upper end of the conveyor belt passes through the slot and is placed on the guide platform surface, and is slidably arranged on the upper end of the guide platform; the upper end of the guide platform is provided with a limit plate on both sides corresponding to the conveyor belt, and the outer end of the limit plate is an arc-shaped structure;

[0008] A second pulley is fixedly provided on one side of the driving shaft, a driving motor is provided at a corresponding position in the guide platform, a third pulley is provided on the output shaft of the driving motor, and the third pulley is connected to the second pulley through a synchronous belt to control the rotation of the driving shaft through the driving motor.

[0009] As a further solution of the present invention: the push hook is an arc-shaped structure, the push hook on the upper end of the guide platform is arc-shaped and inclined toward the moving direction of the conveyor belt, and hook grooves are respectively provided on both sides of the guide platform corresponding to the push hooks, and the hook grooves are connected with the slots so that the push hooks can smoothly enter the inner cavity of the guide platform;

[0010] A penetrating cutting groove is opened in the middle of the push hook, and a plastic cutting piece is installed at the end of the guide platform corresponding to the push hook. The plastic cutting piece includes a pasting plate installed on the guide platform and a cutting blade arranged on one side of the pasting plate. The cutting blade is arranged at the hook groove and located in the middle of the hook groove, so that the moving push hook passes through the cutting blade through the cutting groove to cut off the plastic film wrapped on the push hook.

[0011] As a further solution of the present invention: guide guard plates are respectively provided on both sides of the guide platform, one side of the guide guard plate is connected to the material guide box, and the side of the guide guard plate away from the material guide box is an outwardly expanded arc structure so that the plastic film can be smoothly moved to the guide platform, and one side of the material guide box is provided with a bevel plate for facilitating the introduction of the plastic film, and the bevel plate extends to the inner side of the material guide box.

[0012] As a further solution of the present invention: a pressing assembly for pressing the film is also provided at the corresponding position of the upper end of the guide platform, and the pressing assembly includes a pressing platform rotatably mounted on the guide platform and a pressing cylinder for driving the pressing platform to rotate. The pressing platform is arranged between the conveyor belts on both sides of the guide platform to press the plastic film in the middle of the guide platform. Table shafts are respectively provided on both sides of one end of the pressing platform, and are rotatably mounted on the support corresponding to the guide platform through the table shaft. The pressing platform is located on one side of the table shaft and has a certain gap with the guide platform to facilitate the transportation of the plastic film. A table plate is provided on the back of the pressing platform, and a pressing shaft is fixedly mounted on the outer end of the table plate. Both sides of the pressing shaft are rotatably connected with the output rod of the pressing cylinder respectively. The outer end of the output rod of the pressing cylinder is provided with a sleeve sleeved on the pressing shaft to realize the rotatable connection with the pressing shaft, and the cylinder body of the pressing cylinder is rotatably mounted on the guide platform through a cylinder seat.

[0013] As a further solution of the present invention: driving rollers are respectively arranged on the driving shafts on both sides of the guide platform, and corresponding roller grooves are opened on the guide platform corresponding to the driving rollers, so that the upper ends of the driving rollers protrude from the guide platform surface; the front end of the press platform is provided with a first pressing roller matched with the driving roller at the front end of the guide platform, and the press platform is pressed down so that the first pressing roller presses on the upper end of the driving roller to clamp the plastic film, thereby pulling the plastic film to move; the first pressing roller is installed on the roller plate through the first roller shaft, and is fixedly installed on both sides of the front end of the press platform through the roller plate;

[0014] The guide box is provided with a second pressing roller corresponding to the rear end driving roller of the guide platform, and the second pressing roller is rotatably mounted on the slope block. A rotation groove is provided in the middle of the slope block corresponding to the second pressing roller, and both sides of the second pressing roller are rotatably mounted in the rotation groove of the slope block through the second roller shaft; the slope block is arranged on one side of the bevel plate, and a downwardly inclined slope is provided on the side of the slope block close to the bevel plate to guide the plastic film to the lower end of the second pressing roller;

[0015] The material guide box is provided with an adjusting cylinder for controlling the lifting and lowering adjustment of the ramp block. The output rod of the adjusting cylinder passes through the upper end of the material guide box and is fixedly connected to the ramp block. Guide rods are also provided on both sides of the upper end of the ramp block and pass through the corresponding sliding sleeves of the material guide box to improve the stability of the lifting and lowering of the ramp block. The adjusting cylinder controls the descent of the second pressure roller to cooperate with the driving roller.

[0016] As a further solution of the present invention: the two groups of crushing rollers in the crushing box are arranged in parallel, and the two groups of crushing rollers are provided with transverse cutters at intervals, the transverse cutters on the two groups of crushing rollers are staggered, and the crushing rollers are provided with transverse knife grooves corresponding to the transverse cutters, one group of crushing rollers is provided with circular cutters, and the corresponding circular cutters on the matched crushing rollers are provided with circular knife grooves to cut the plastic film horizontally and vertically; crushing shafts are provided on both sides of the two groups of crushing rollers, and are installed in the corresponding bearing seats of the crushing box through the crushing shafts, synchronous gears are provided on one side of the two groups of crushing rollers, and the two groups of crushing rollers rotate synchronously towards each other through the meshing transmission of the synchronous gears, and a crushing motor for driving the crushing rollers to rotate is provided outside the crushing box, a fourth pulley is fixedly provided outside the output shaft of the crushing motor, and a fifth pulley is fixedly provided on the side of a group of crushing rollers away from the synchronous gears, and the fourth pulley is connected to the fifth pulley through a transmission belt to control the rotation of the crushing rollers.

[0017] As a further solution of the present invention: the crushing roller is a hollow structure, and the crushing shafts on both sides of the crushing roller are provided with ventilation holes connected to the internal cavity of the crushing roller, and air flows into the internal cavity of the crushing roller through the ventilation holes to dissipate the heat of the crushing roller.

[0018] As a further solution of the present invention: a fan is installed on one side of the crushing box body, and the air outlet end of the fan is externally connected to a ventilation box, and the ventilation box is fixed on the frame through a box frame. The ventilation box is provided with air guide tubes corresponding to the ventilation holes on one side of the crushing roller. Two groups of air guide tubes are arranged in parallel and are respectively inserted into the corresponding ventilation holes. A certain gap is provided between the air guide tubes and the inner wall of the crushing shaft to avoid friction. The air guide tubes blow wind into the inner cavity of the crushing roller and lead it out from the ventilation holes on the other side to improve the heat dissipation effect of the crushing roller.

[0019] As a further solution of the present invention: the crushing roller is provided with an air distribution hood for dispersing the wind flow introduced into the crushing roller. The air distribution hood is arranged on the side of the crushing roller close to the air guide tube. The air distribution hood is a conical structure to guide the wind blown out of the air guide tube to the inner wall of the crushing roller, thereby enhancing the heat dissipation of the inner wall of the crushing roller. The crushing roller is provided with an air gathering hood on the side away from the air distribution hood. The air gathering tube is arranged outside the air gathering hood to gather and guide the air flow in the inner cavity of the crushing roller. The air distribution hood and the air gathering hood are respectively fixedly mounted on the hood shaft, and the air distribution hood, the air gathering hood and the hood shaft are not in contact with the inner wall of the crushing roller. One side of the hood shaft is mounted on the crushing box through a hood frame, and the other side is inserted into the air guide tube and mounted in the ventilation box.

[0020] Compared with the prior art, the present invention has the following beneficial effects: a guide mechanism is installed on one side of the crusher, and the guide mechanism pulls the plastic film forward through the push hook on the conveyor belt, and the downward pressure cylinder can control the pressing table to descend, so that the plastic film is attached to the guide table, so that the push hook can hook the plastic film. Driving rollers are also provided on both sides of the guide table, and the driving rollers are respectively arranged in cooperation with the first pressing roller and the second pressing roller to increase the conveying thrust of the plastic film, so that the plastic film can be introduced into the crusher through the guide box, and the plastic film is introduced into the crusher in an orderly manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 The partial cross-sectional structure of the present invention is schematically shown. Figure 1 ;

[0025] Figure 5 The partial cross-sectional structure of the present invention is schematically shown. Figure 2 ;

[0026] Figure 6 The partial cross-sectional structure of the present invention is schematically shown. Figure 3 ;

[0027] Figure 7 for Figure 6 The enlarged structural diagram at B in the middle;

[0028] Figure 8 for Figure 6 The enlarged structural diagram at C in the middle;

[0029] Markings in the figure: 1. Crusher; 2. Guide table; 3. Plastic cutting; 4. Pressing table; 5. Driving roller; 6. Fan;

[0030] 11. Frame; 12. Crushing box; 13. Crushing roller; 14. Horizontal cutter; 15. Circular cutter; 16. Crushing shaft; 17. Synchronous gear; 18. Crushing motor; 19. Ventilation hole;

[0031] 20. driving motor; 21. material guide box; 22. conveyor belt; 23. push hook; 24. driving shaft; 25. first pulley; 26. slot; 27. limit plate; 28. second pulley; 29. ​​third pulley;

[0032] 31. Hook groove; 32. Cutting groove; 33. Paste board; 34. Cutting blade;

[0033] 41. Down-pressing cylinder; 42. Table shaft; 43. Support; 44. Table plate; 45. Pressing shaft; 46. Sleeve; 47. Cylinder seat;

[0034] 51. first pressing roller; 52. roller plate; 53. second pressing roller; 54. ramp block; 55. regulating cylinder; 56. guide rod;

[0035] 61. ventilation box; 62. air guide tube; 63. air distribution cover; 64. air collection cover; 65. air collection tube; 66. cover shaft; 67. cover frame;

[0036] 211. Guide guard plate; 212. Bevel plate. DETAILED DESCRIPTION

[0037] In order to make the technical means for realizing the present invention, the creative features, the objectives and effects to be achieved easily understood, the present invention is further described below with reference to specific diagrams.

[0038] like Figures 1 to 8 As shown,

[0039] In view of the problems existing in the prior art, the present embodiment provides a plastic film recycling and crushing device, comprising a frame 11, a crusher 1 installed on the frame 11, and a guiding mechanism for feeding the plastic film into the crusher 1, the crusher 1 comprising a crushing box 12 and two groups of crushing rollers 13 arranged in the crushing box 12, the guiding mechanism comprising a guiding platform 2, a pushing assembly arranged on the guiding platform 2 for pulling the plastic film to move, a guide box 21 for guiding the plastic film into the crushing box 12 is provided on one side of the guiding platform 2, the lower end of the guide box 21 is inserted into the crushing box 12, and is located in the groove between the two groups of crushing rollers 13, so that the plastic film is pushed into the groove in an orderly manner for crushing; the pushing assembly comprises a conveyor belt 22 arranged in parallel on both sides of the guiding platform 2 and a driving member for driving the conveyor belt 22 to circulate, and push hooks 23 are arranged at intervals on the conveyor belt 22 to hook the plastic film, thereby pulling the plastic film forward and feeding it into the guide box 21.

[0040] Specifically, the personnel place the recycled plastic film on the guiding platform 2, the conveyor belt 22 in the pushing assembly moves, and hooks the plastic film through the push hook 23 to drive the plastic film to move and guide it into the guide box 21. Under the push of the subsequent plastic film, the plastic film in the guide box 21 is pushed out to between the two sets of crushing rollers 13. The crushing rollers 13 also pull the plastic film down while crushing it, so as to realize the orderly introduction of the plastic film into the crusher 1 and complete the crushing.

[0041] In order to enable the pushing component to stably push the plastic film to move without blocking the plastic film, in one embodiment, Figure 5 As shown, the driving member in the pushing assembly is built-in and installed in the guide platform 2, and the driving member includes a driving shaft 24 arranged on both sides of the guide platform 2, and the two ends of the driving shaft 24 are rotatably installed on the bearing seats and fixed on the inner cavity wall of the guide platform 2 through the bearing seats. A first pulley 25 is provided on both sides of the driving shaft 24 corresponding to the conveyor belt 22, and the two ends of the conveyor belt 22 are respectively sleeved on the first pulley 25, and the upper end of the guide platform 2 is provided with a slot 26 corresponding to the first pulley 25, and the upper end of the first pulley 25 extends out of the slot 26, so that the upper end of the conveyor belt 22 passes through the slot 26 and is placed on the surface of the guide platform 2, and is slidably arranged on the upper end of the guide platform 2, and the driving member is hidden, thereby reducing the resistance of the plastic film when moving; in order to prevent the conveyor belt 22 at the upper end of the guide platform 2 from deviating and prevent the plastic film from sliding into the lower end of the conveyor belt 22, the upper end of the guide platform 2 is provided with a limit plate 27 on both sides of the conveyor belt 22, and the outer end of the limit plate 27 is an arc structure;

[0042] A second pulley 28 is fixedly provided on the outside of one side of the driving shaft 24, a driving motor 20 is provided at a corresponding position in the guide platform 2, a third pulley 29 is provided on the outside of the output shaft of the driving motor 20, and the third pulley 29 is connected to the second pulley 28 through a synchronous belt to control the rotation of the driving shaft 24 through the driving motor 20.

[0043] like Figure 3 As shown, the push hook 23 is an arc-shaped structure. The push hook 23 at the upper end of the guide platform 2 is inclined in an arc shape toward the moving direction of the conveyor belt 22 to enhance the stability of hooking the plastic film. The push hooks 23 on both sides of the guide platform 2 are respectively provided with hook grooves 31, and the hook grooves 31 are connected with the slots 26 so that the push hooks 23 can smoothly enter the inner cavity of the guide platform 2.

[0044] When the push hook 23 pulls the plastic film to move to the end, it is difficult for the push hook 23 to detach from the plastic film. During the process of the push hook 23 entering the hook groove 31, it will continue to pull the plastic film in, causing the plastic film to be torn into pieces, hindering the smooth pushing of the plastic film, and bringing the broken plastic film into the guide platform 2 through the slot 26 and the hook groove 31, affecting the normal operation of the equipment.

[0045] In order to solve the above problems, in one implementation, Figure 7As shown, a penetrating cutting groove 32 is opened in the middle of the push hook 23, and a plastic cutting piece 3 is installed at the end of the guide platform 2 corresponding to the push hook 23. The plastic cutting piece 3 includes a pasting plate 33 installed on the guide platform 2 and a cutting blade 34 arranged on one side of the pasting plate 33. The cutting blade 34 is arranged at the hook groove 31 and is located in the middle of the hook groove 31, so that the moving push hook 23 passes through the cutting blade 34 through the cutting groove 32, which is used to cut off the plastic film wrapped on the push hook 23, so that the push hook 23 can smoothly enter the guide platform 2, and the plastic film can be smoothly pushed into the guide box 21.

[0046] When the push hook 23 on the guide platform 2 pulls the plastic film, the plastic film is easy to separate from the guide platform 2 and is not easy to be introduced into the material guide box, so as to improve the smoothness of the movement of the plastic film.

[0047] In order to solve the above problems, in one implementation, Figure 2 As shown, guide guard plates are respectively provided on both sides of the guide platform 2, one side of the guide guard plate 211 is connected to the material guide box 21, and the side of the guide guard plate away from the material guide box 21 is an outwardly expanded arc structure so that the plastic film can be smoothly moved to the guide platform 2, and one side of the material guide box 21 is provided with a bevel plate for facilitating the introduction of the plastic film, and the bevel plate 212 extends to the inner side of the material guide box 21.

[0048] The plastic film is stacked on the guide platform 2, and the plastic film is relatively fluffy when placed, so that the bottom of the plastic film is not easily pulled by the push hook 23, and it is easy to loosen and detach after being pulled. Therefore, it is also necessary to improve the fit between the plastic film and the surface of the guide platform 2 and improve the stability of the push hook 23 pulling the plastic film.

[0049] In order to solve the above problems, in one implementation, Figure 1As shown, a pressing assembly for pressing the film is also provided at a corresponding position on the upper end of the guide platform 2, and the pressing assembly includes a pressing platform 4 rotatably mounted on the guide platform 2 and a pressing cylinder 41 for driving the pressing platform 4 to rotate. The pressing platform 4 is arranged between the conveyor belts 22 on both sides of the guide platform 2 to press the plastic film in the middle of the guide platform 2. The pressing platform 4 is provided with a platform shaft 42 on both sides of one end, and is rotatably mounted on a support 43 corresponding to the guide platform 2 through the platform shaft 42. The pressing platform 4 is located on one side of the platform shaft 42 and has a certain gap with the guide platform 2 to facilitate the transportation of the plastic film. A table plate 44 is provided on the back of the pressing table 4, and a pressing shaft 45 is fixedly installed on the outer end of the table plate 44. Both sides of the pressing shaft 45 are rotatably connected to the output rod of the pressing cylinder 41 respectively. The outer end of the output rod of the pressing cylinder 41 is provided with a sleeve 46 sleeved on the pressing shaft 45 to achieve rotatable connection with the pressing shaft 45. The cylinder body of the pressing cylinder 41 is rotatably installed on the guide platform 2 through a cylinder seat 47; the pressing cylinder 41 drives the table plate 44 to move through the pressing shaft 45, so that the pressing table 4 rotates along the table shaft 42, and presses the film to make it stick to the guide platform 2, so that the plastic film can be hooked by the push hook 23.

[0050] In order to further improve the conveying strength of plastic film, such as Figure 5 and Figure 6 As shown, driving rollers 5 are respectively provided on the driving shafts 24 on both sides of the guide platform 2, and corresponding roller grooves are opened on the guide platform 2 corresponding to the driving rollers 5, so that the upper ends of the driving rollers 5 protrude from the surface of the guide platform 2; the front end of the press platform 4 is corresponding to the front end driving roller 5 of the guide platform 2 and is provided with a first pressing roller 51 which is arranged in cooperation therewith, and the press platform 4 is pressed downward so that the first pressing roller 51 is pressed on the upper end of the driving roller 5 to clamp the plastic film, thereby dragging the plastic film to move; the first pressing roller 51 is installed on the roller plate 52 through the first roller shaft, and is fixedly installed on both sides of the front end of the press platform 4 through the roller plate 52;

[0051] The guide box 21 is provided with a second pressing roller 53 corresponding to the rear end driving roller 5 of the guide platform 2, and the second pressing roller 53 is rotatably mounted on the slope block 54. A rotation groove is provided in the middle of the slope block 54 corresponding to the second pressing roller 53, and both sides of the second pressing roller 53 are rotatably mounted in the rotation groove of the slope block 54 through the second roller shaft; the slope block 54 is arranged on one side of the bevel plate, and a downwardly inclined slope is provided on the side of the slope block 54 close to the bevel plate to guide the plastic film to the lower end of the second pressing roller 53;

[0052] The material guide box 21 is provided with an adjusting cylinder 55 for controlling the lifting and lowering adjustment of the ramp block 54. The output rod of the adjusting cylinder 55 passes through the upper end of the material guide box 21 and is fixedly connected to the ramp block 54. Guide rods 56 are also provided on both sides of the upper end of the ramp block 54, and pass through the corresponding sliding sleeves of the material guide box 21 to improve the stability of the lifting and lowering of the ramp block 54; the adjusting cylinder 55 controls the second pressing roller 53 to descend, so as to cooperate with the driving roller 5, thereby pushing the plastic film forward, so as to gradually push the plastic film in the material guide box 21 downward and export it.

[0053] like Figure 6 and Figure 7 As shown, two groups of crushing rollers 13 in the crushing box 12 are arranged in parallel, and transverse cutters 14 are arranged at intervals on the two groups of crushing rollers 13. The transverse cutters 14 on the two groups of crushing rollers 13 are arranged in a staggered manner, and the crushing rollers 13 are provided with transverse knife grooves corresponding to the transverse cutters 14. One group of crushing rollers 13 is provided with circular cutters 15, and the circular cutters 15 on the matched crushing rollers 13 are provided with circular knife grooves to cut the plastic film horizontally and vertically; crushing shafts 16 are respectively provided on both sides of the two groups of crushing rollers 13, and through The crushing shaft 16 is installed in the bearing seat corresponding to the crushing box 12. Synchronous gears 17 are respectively provided on one side of the two groups of crushing rollers 13, and the two groups of crushing rollers 13 rotate synchronously towards each other through the meshing transmission of the synchronous gears 17. A crushing motor 18 for driving the crushing rollers 13 to rotate is provided outside the crushing box 12. A fourth pulley is fixedly provided outside the output shaft of the crushing motor 18. A fifth pulley is fixedly provided on the side of a group of crushing rollers 13 away from the synchronous gear 17. The fourth pulley is connected to the fifth pulley through a transmission belt to control the rotation of the crushing rollers 13.

[0054] Since the two groups of crushing rollers 13 rotate towards each other and cut the plastic film, frictional heat is generated between the two groups of crushing rollers 13 and between the two groups of crushing rollers 13 and the plastic film, resulting in a higher temperature of the crushing rollers 13. When the plastic film contacts the crushing rollers 13 with a higher temperature, it will melt, reducing the pulling force of the crushing rollers 13 on the plastic film, and the plastic sticking to the crushing rollers 13 will affect the subsequent crushing of the plastic film.

[0055] In order to solve the above problems, in one implementation, Figure 4 As shown, the crushing roller 13 is a hollow structure. The crushing shafts 16 on both sides of the crushing roller 13 are provided with ventilation holes 19 connected to the internal cavity of the crushing roller 13. Air flows into the internal cavity of the crushing roller 13 through the ventilation holes 19 to dissipate heat from the crushing roller 13.

[0056] In order to enhance the heat dissipation effect of the crushing roller 13, a fan 6 is installed on one side of the crushing box 12. The air outlet end of the fan 6 is externally connected to a ventilation box 61. The ventilation box 61 is fixed to the frame 11 through a box frame. The ventilation box 61 is provided with an air guide tube 62 corresponding to the ventilation hole 19 on one side of the crushing roller 13. Two groups of air guide tubes 62 are arranged in parallel and are respectively inserted into the corresponding ventilation holes 19. There is a certain gap between the air guide tube 62 and the inner wall of the crushing shaft 16 to avoid friction. The air guide tube 62 blows the wind into the inner cavity of the crushing roller 13 and outputs it from the ventilation hole 19 on the other side, thereby improving the heat dissipation effect of the crushing roller 13.

[0057] After the wind from the fan 6 is blown into the inner cavity of the crushing roller 13, the wind will be quickly discharged from the ventilation hole 19 on the other side. The wind flow rate outside the inner cavity wall of the crushing roller 13 is low, which will reduce the heat dissipation effect. Therefore, in order to enhance the wind flow outside the inner cavity wall of the crushing roller 13, the crushing roller 13 is provided with a wind hood 63 for dispersing the wind flow introduced into the crushing roller 13. The wind hood 63 is arranged on one side of the crushing roller 13 close to the wind guide tube 62. The wind hood 63 is a conical structure to guide the wind blown out of the wind guide tube 62 to the inner wall of the crushing roller 13, thereby enhancing the heat dissipation of the inner wall of the crushing roller 13. A wind collecting hood 64 is provided on the side of the crushing roller 13 away from the wind dividing hood 63, and a wind collecting tube 65 is provided outside the wind collecting hood 64 to collect and guide the airflow in the inner cavity of the crushing roller 13; the wind dividing hood 63 and the wind collecting hood 64 are respectively fixedly mounted on a hood shaft 66, and the wind dividing hood 63, the wind collecting hood 64 and the hood shaft 66 do not contact the inner wall of the crushing roller 13, one side of the hood shaft 66 is installed on the crushing box 12 through a hood frame 67, and the other side is inserted into the air guide tube 62 and installed in the ventilation box 61.

[0058] The beneficial effects of the present invention are as follows: a guide mechanism is installed on one side of the crusher 1, and the guide mechanism pulls the plastic film forward through the push hook 23 on the conveyor belt 22, and the downward pressure cylinder 41 can control the pressing platform 4 to descend, so that the plastic film is attached to the guide platform 2, so that the push hook 23 can hook the plastic film. Driving rollers 5 are also provided on both sides of the guide platform 2, and the driving rollers 5 are respectively arranged in cooperation with the first pressing roller 51 and the second pressing roller 53 to increase the conveying thrust of the plastic film, so that the plastic film can be introduced into the crusher 1 through the guide box 21, and the plastic film is introduced into the crusher 1 in an orderly manner.

[0059] The above shows and describes the basic principle and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents. It should be noted that, in this article, if there are relational terms such as first and second, it is only used to distinguish one entity or operation from another entity or operation, and does not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "includes", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A plastic film recycling and crushing device, characterized in that: The invention comprises a frame (11), a crusher (1) mounted on the frame (11), and a guide mechanism for feeding a plastic film into the crusher (1); the crusher (1) comprises a crushing box (12) and two groups of crushing rollers (13) arranged in the crushing box (12); the guide mechanism comprises a guide platform (2), a pushing component arranged on the guide platform (2) for pulling the plastic film to move; a guide box (23) for guiding the plastic film into the crushing box (12) is provided on one side of the guide platform (2). 1), the lower end of the guide box (21) is inserted into the crushing box (12) and is located at the groove between the two groups of crushing rollers (13), so that the plastic film is pushed into the groove in an orderly manner for crushing; the pushing component includes a conveyor belt (22) arranged in parallel on both sides of the guide platform (2) and a driving member for driving the conveyor belt (22) to move cyclically, and push hooks (23) are arranged on the conveyor belt (22) at intervals to hook the plastic film, thereby pulling the plastic film forward and sending it into the guide box (21); The push hook (23) is an arc-shaped structure. The push hook (23) at the upper end of the guide platform (2) is inclined in an arc shape toward one side of the moving direction of the conveyor belt (22). The push hooks (23) on both sides of the guide platform (2) are respectively provided with hook grooves (31). The hook grooves (31) are connected with the slots (26) so that the push hook (23) can smoothly enter the inner cavity of the guide platform (2). A penetrating cutting groove (32) is provided in the middle of the push hook (23). ) is provided with a plastic cutting piece (3) at the end thereof corresponding to the push hook (23), the plastic cutting piece (3) comprising a pasting plate (33) installed on the guide platform (2) and a cutting blade (34) arranged on one side of the pasting plate (33), the cutting blade (34) being arranged at the hook groove (31) and located in the middle of the hook groove (31), so that the moving push hook (23) passes through the cutting groove (32) and the cutting blade (34), so as to cut off the plastic film wound on the push hook (23).

2. A plastic film recycling and crushing device according to claim 1, characterized in that: The driving member in the pushing assembly is built-in and installed in the guide platform (2), and the driving member includes a driving shaft (24) arranged on both sides of the guide platform (2), and the two ends of the driving shaft (24) are rotatably installed on the bearing seat and fixed on the inner cavity wall of the guide platform (2) through the bearing seat. A first pulley (25) is provided on both sides of the driving shaft (24) corresponding to the conveyor belt (22), and the two ends of the conveyor belt (22) are respectively sleeved on the first pulley (25), and the upper end of the guide platform (2) is provided with a groove (26) corresponding to the first pulley (25), and the upper end of the first pulley (25) extends out of the groove (26) so that the upper end of the conveyor belt (22) passes through the groove (26) and is placed on the surface of the guide platform (2), and is slidably arranged on the upper end of the guide platform (2); a limit plate (27) is provided on both sides of the upper end of the guide platform (2) corresponding to the conveyor belt (22), and the outer end of the limit plate (27) is an arc-shaped structure; A second pulley (28) is fixedly provided on one side of the driving shaft (24), a driving motor (20) is provided at a corresponding position in the guide platform (2), a third pulley (29) is provided on the output shaft of the driving motor (20), and the third pulley (29) is connected to the second pulley (28) through a synchronous belt so as to control the rotation of the driving shaft (24) through the driving motor (20).

3. The plastic film recycling and crushing device according to claim 1, characterized in that: Guide guard plates (211) are respectively provided on both sides of the guide platform (2), one side of the guide guard plate (211) is connected to the material guide box (21), and the side of the guide guard plate away from the material guide box (21) is an outwardly expanded arc structure so that the plastic film can be smoothly moved onto the guide platform (2), and one side of the material guide box (21) is provided with a bevel plate for facilitating the introduction of the plastic film, and the bevel plate (212) extends to the inner side of the material guide box (21).

4. The plastic film recycling and crushing device according to claim 1, characterized in that: A pressing assembly for pressing the film is also provided at a corresponding position on the upper end of the guide platform (2), and the pressing assembly comprises a pressing platform (4) rotatably mounted on the guide platform (2) and a pressing cylinder (41) for driving the pressing platform (4) to rotate. The pressing platform (4) is arranged between the conveyor belts (22) on both sides of the guide platform (2) to press the plastic film in the middle of the guide platform (2). The pressing platform (4) is provided with a platform shaft (42) on both sides of one end, and is rotatably mounted on a support (43) corresponding to the guide platform (2) through the platform shaft (42). (4) is located on one side of the table shaft (42) and has a certain gap with the guide platform (2). The back of the press platform (4) is provided with a table plate (44), and a press shaft (45) is fixedly installed on the outer end of the table plate (44). The two sides of the press shaft (45) are respectively rotatably connected to the output rod of the downward pressure cylinder (41). The outer end of the output rod of the downward pressure cylinder (41) is provided with a sleeve (46) sleeved on the press shaft (45) to achieve rotational connection with the press shaft (45). The cylinder body of the downward pressure cylinder (41) is rotatably installed on the guide platform (2) through a cylinder seat (47).

5. A plastic film recycling and crushing device according to claim 4, characterized in that: The driving shafts (24) on both sides of the guide platform (2) are respectively provided with driving rollers (5), and the guide platform (2) is provided with corresponding roller grooves corresponding to the driving rollers (5) so that the upper ends of the driving rollers (5) protrude from the surface of the guide platform (2); the front end of the pressing platform (4) is provided with a first pressing roller (51) matched with the driving roller (5) at the front end of the guide platform (2), and the pressing platform (4) is pressed downward so that the first pressing roller (51) is pressed on the upper end of the driving roller (5), clamping the plastic film, thereby pulling the plastic film to move; the first pressing roller (51) is installed on the roller plate (52) through the first roller shaft, and is fixedly installed on both sides of the front end of the pressing platform (4) through the roller plate (52); The guide box (21) is provided with a second pressing roller (53) corresponding to the rear end driving roller (5) of the guide platform (2), and the second pressing roller (53) is rotatably mounted on the slope block (54). A rotation groove is provided in the middle of the slope block (54) corresponding to the second pressing roller (53), and both sides of the second pressing roller (53) are rotatably mounted in the rotation groove of the slope block (54) through a second roller shaft; the slope block (54) is arranged on one side of the bevel plate, and a slope inclined downward is provided on the side of the slope block (54) close to the bevel plate, so as to guide the plastic film to the lower end of the second pressing roller (53); The material guide box (21) is provided with an adjusting cylinder (55) for controlling the lifting and lowering of the ramp block (54); an output rod of the adjusting cylinder (55) passes through the upper end of the material guide box (21) and is fixedly connected to the ramp block (54); guide rods (56) are respectively provided on both sides of the upper end of the ramp block (54) and pass through corresponding sliding sleeves of the material guide box (21) to improve the lifting and lowering stability of the ramp block (54); the adjusting cylinder (55) controls the second pressing roller (53) to descend so as to be arranged in coordination with the driving roller (5).

6. The plastic film recycling and crushing device according to claim 1, characterized in that: Two groups of crushing rollers (13) in the crushing box (12) are arranged in parallel, and transverse cutters (14) are arranged at intervals on the two groups of crushing rollers (13). The transverse cutters (14) on the two groups of crushing rollers (13) are arranged in a staggered manner, and the crushing rollers (13) are provided with transverse cutter grooves corresponding to the transverse cutters (14). One group of crushing rollers (13) is provided with circular cutters (15), and the circular cutters (15) are provided with circular cutter grooves on the crushing rollers (13) arranged in cooperation with the circular cutters (15), so as to cut the plastic film transversely and vertically. Crushing shafts (16) are respectively arranged on both sides of the two groups of crushing rollers (13), and are connected to the crushing rollers (13) by a plurality of crushing shafts (16). A crushing shaft (16) is installed in a bearing seat corresponding to the crushing box (12). Synchronous gears (17) are respectively provided on one side of the two groups of crushing rollers (13). The two groups of crushing rollers (13) are synchronously rotated in opposite directions through meshing transmission of the synchronous gears (17). A crushing motor (18) for driving the crushing rollers (13) to rotate is provided outside the crushing box (12). A fourth pulley is fixedly provided outside the output shaft of the crushing motor (18). A fifth pulley is fixedly provided on one side of a group of crushing rollers (13) away from the synchronous gear (17). The fourth pulley is connected to the fifth pulley through a transmission belt to control the rotation of the crushing rollers (13).

7. A plastic film recycling and crushing device according to claim 6, characterized in that: The crushing roller (13) is a hollow structure. The crushing shafts (16) on both sides of the crushing roller (13) are provided with ventilation holes (19) connected to the internal cavity of the crushing roller (13). Air flows into the internal cavity of the crushing roller (13) through the ventilation holes (19) to dissipate heat from the crushing roller (13).

8. The plastic film recycling and crushing device according to claim 7, characterized in that: A fan (6) is installed on one side of the crushing box (12). The air outlet end of the fan (6) is externally connected to a ventilation box (61). The ventilation box (61) is fixed to the frame (11) through a box frame. The ventilation box (61) is provided with an air guide tube (62) corresponding to the ventilation hole (19) on one side of the crushing roller (13). Two groups of air guide tubes (62) are arranged in parallel and are respectively inserted into the corresponding ventilation holes (19). There is a certain gap between the air guide tube (62) and the inner wall of the crushing shaft (16). The air guide tube (62) blows air into the inner cavity of the crushing roller (13) and guides it out from the ventilation hole (19) on the other side.

9. The plastic film recycling and crushing device according to claim 8, characterized in that: The crushing roller (13) is provided with an air distribution hood (63) for dispersing the wind flow introduced into the crushing roller (13). The air distribution hood (63) is arranged on a side of the crushing roller (13) close to the wind guide tube (62). The air distribution hood (63) is a conical structure so as to guide the wind blown out of the wind guide tube (62) to the inner wall of the crushing roller (13). The crushing roller (13) is provided with an air gathering hood (64) on a side away from the air distribution hood (63). The air gathering hood (64) is provided with an air gathering hood (64) on the outside. The wind tube (65) is used to collect and guide the airflow in the inner cavity of the crushing roller (13); the wind separation hood (63) and the wind collection hood (64) are respectively fixedly mounted on the hood shaft (66), and the wind separation hood (63), the wind collection hood (64) and the hood shaft (66) do not contact the inner wall of the crushing roller (13); one side of the hood shaft (66) is mounted on the crushing box (12) through a hood frame (67), and the other side is inserted into the wind guide tube (62) and mounted in the ventilation box (61).

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