Pelletizing equipment for PET (Polyethylene Terephthalate) bottle flake particles

Abstract

The invention discloses PET bottle flake particle granulation equipment, and relates to the technical field of PET bottle flake crushing granulation, the equipment comprises a high temperature water washing box, one side of the upper end of the high temperature water washing box is provided with a crushing box, the center position of the upper end of the crushing box is provided with a first opening, the crushing box is internally provided with two crushing rollers, and the first opening is provided with a second opening; the first opening is formed between the two crushing rollers, a PET bottle pretreatment mechanism is arranged at the upper end of the first opening, a fixing frame is installed on the side, opposite to the crushing box, of the upper end of the high-temperature water washing box, and a drying box is installed at the ends, away from the crushing box, of the fixing frame and the high-temperature water washing box. And a second gear can be meshed with a first gear, so that a rotating roller and a friction convex block convey the flattened PET bottles to a crushing roller, the crushing efficiency of the PET bottles is effectively improved, PET bottle flake particles can be cleaned through reciprocating movement of a leak hole cleaning plate, and the cleaning and conveying efficiency of the PET bottle flake particles is improved.

Description

Technical Field

[0001] The invention relates to the technical field of PET bottle flake crushing and granulation, in particular to a PET bottle flake particle granulation device. Background Art

[0002] PET plastic bottles are the most widely used beverage packaging today. When these materials are discarded, they face the problem of how to deal with them. Currently, PET bottles are mostly recycled and crushed for reuse. After recycling PET bottles, they need to be crushed into PET bottle flakes, then the PET bottle flakes are washed with high-temperature water, and then the washed PET bottle flakes are dried.

[0003] When crushing PET bottles, since most PET bottles are cylindrical, it is not easy for the crushing teeth of the crusher to hook the PET bottles for crushing, which reduces the crushing efficiency of the PET bottles. For example, a crushing device for recycling PET bottles is disclosed with announcement number CN218776928U.

[0004] At the same time, when washing PET bottle flakes, most of the time the PET bottle flakes are immersed and stirred in high-temperature water, and then the machine is stopped and the PET bottle flakes are removed, so that the PET bottle flakes cannot be continuously washed, thereby reducing the washing efficiency of the PET bottle flakes.

[0005] In view of the above problems, an improved PET bottle flake granulation equipment is now designed. Summary of the invention

[0006] The object of the present invention is to provide a PET bottle flake granulation device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions: A PET bottle flake granulation equipment, comprising a high-temperature water washing box, a crushing box is installed on one side of the upper end of the high-temperature water washing box, a feed port is opened at the upper end of the high-temperature water washing box inside the crushing box, a first opening is opened at the center position of the upper end of the crushing box, two crushing rollers that cooperate with each other to crush the PET bottle are arranged inside the crushing box, the first opening is arranged between the two crushing rollers, a first rotating shaft is installed at the center position of the crushing roller, one end of the first rotating shaft passes through the crushing box and a driver for rotating the two crushing rollers toward the first opening is installed, the driver is installed on the side wall of the crushing box, a controller is installed at the upper end of the high-temperature water washing box, a PET bottle pretreatment mechanism for flattening the PET bottle to facilitate crushing the PET bottle is arranged at the upper end of the first opening, and a cleaning mechanism for cleaning the PET bottle flake particles is arranged inside the high-temperature water washing box.

[0008] A fixed frame is installed on the side of the upper end of the high-temperature water washing box opposite to the crushing box, a discharge port is opened on the upper end of the high-temperature water washing box inside the fixed frame, a drying box is installed on the end of the fixed frame and the high-temperature water washing box away from the crushing box, the drying box and the fixed frame are connected to each other, a bracket for supporting the drying box is installed at the lower end of the drying box, a conveying mechanism for conveying the cleaned PET bottle flakes to the inside of the drying box is arranged inside the high-temperature water washing box below the fixed frame, a driving mechanism for driving the conveying mechanism of the cleaning mechanism is arranged on the upper end of the high-temperature water washing box, and a drying mechanism for drying the cleaned PET bottle flakes is arranged inside the drying box.

[0009] As a further solution of the present invention: the PET bottle pretreatment mechanism includes an extrusion frame, the width of the first opening is smaller than the width of the PET bottle that has not been flattened, and larger than the width of the PET bottle that has been flattened, the extrusion frame is installed at the upper end of the crushing box, the inner wall of the extrusion frame opposite to the open end and the inner wall of the first opening are on the same vertical plane, a hopper for placing PET bottles is installed at the upper end of the extrusion frame, the width of the output end of the hopper is larger than the width of the PET bottles, an extrusion box for extruding PET bottles is slidably connected to the inner wall of the extrusion frame, the width of the extrusion box is larger than the width of the output end of the hopper, a first reciprocating push rod for reciprocatingly pushing the extrusion box to move is installed at the end of the extrusion box away from the extrusion frame, the first reciprocating push rod is installed at the upper end of the high-temperature water washing box through a connecting block, and a moving component for conveying the PET bottles to the crushing roller after the PET bottles are flattened is arranged inside the extrusion box.

[0010] As a further solution of the present invention: the moving component includes a rotating roller, a limiting groove is horizontally opened on the side wall of the extrusion frame away from the driver, a second opening is opened on the lower end of the side wall of the extrusion box close to the extrusion frame, the second opening and the center point of the limiting groove are on the same plane, the rotating roller is horizontally arranged inside the extrusion box close to the second opening, a friction protrusion for conveying the flattened PET bottle is installed on the side wall of the rotating roller, the friction protrusion protrudes through the second opening, a third rotating shaft is installed at the center position of the rotating roller, both ends of the third rotating shaft are rotatably connected to the inner wall of the extrusion box, one end of the third rotating shaft close to the limiting groove passes through the extrusion box and the limiting groove and is installed with a second gear, and the first rotating shaft away from the fixed frame side passes through the side wall of the crushing box and is installed with a first gear used in conjunction with the second gear.

[0011] As a further solution of the present invention: the cleaning mechanism includes a leak hole support plate, the interior of the high-temperature water washing box is filled with cleaning liquid, the leak hole support plate is horizontally installed in the high-temperature water washing box, the leak hole support plate is installed with a leak hole inclined plate at one end close to the crushing box, the leak hole inclined plate is installed on the inner wall of the high-temperature water washing box at one end away from the leak hole support plate, the leak hole inclined plate is arranged below the feed inlet of the high-temperature water washing box, the conveying mechanism is arranged on the side of the leak hole support plate away from the leak hole inclined plate, the lower end of the leak hole support plate is installed with a heater for heating the cleaning liquid inside the high-temperature water washing box, two second rotating shafts are rotatably connected to the inner wall of the high-temperature water washing box above the leak hole support plate, the two second rotating shafts are on the same horizontal plane, conveying rollers are installed on the side walls of the second rotating shafts, a conveying belt is sleeved on the conveying rollers, and a number of leak hole cleaning plates for reciprocatingly moving PET bottle flakes for cleaning are installed on the side walls of the conveyor belt, and the end of the leak hole cleaning plate away from the conveyor belt is close to the upper end of the leak hole support plate.

[0012] As a further scheme of the present invention: the conveying mechanism includes a leak hole moving frame, a limiting plate is vertically installed on the side of the lower end of the leak hole support plate away from the leak hole inclined plate, the two ends of the leak hole moving frame are close to the limiting plate and the inner wall of the high-temperature water washing box, and a leak hole baffle is vertically installed on the side of the lower end of the leak hole moving frame close to the limiting plate for preventing PET bottle flakes from entering the bottom of the high-temperature water washing box when the leak hole moving frame rises; after the leak hole moving frame descends, the lower end of the leak hole baffle contacts the bottom of the high-temperature water washing box, the leak hole moving frame can pass through the discharge port of the high-temperature water washing box inside the fixed frame, a sliding rod is vertically installed on the upper end of the leak hole moving frame, the upper end of the sliding rod passes through the fixed frame and is equipped with a moving plate, and a blowing component for blowing the PET bottles inside the leak hole moving frame into the drying box is provided on the fixed frame.

[0013] As a further solution of the present invention: the blowing assembly includes a dehumidifier, which is installed at the upper end of the drying box, an air outlet pipe is installed at the output end of the dehumidifier, an air outlet frame is installed at the end of the air outlet pipe away from the dehumidifier, the air outlet frame is installed on the side wall of the fixed frame close to the crushing box, the air outlet frame is communicated with the interior of the fixed frame, an air inlet pipe is installed at the input end of the dehumidifier, an air intake frame is installed at the end of the air inlet pipe away from the dehumidifier, the air intake frame is installed at the upper end of the drying box, and the air intake frame is communicated with the interior of the drying box.

[0014] As a further solution of the present invention: the driving mechanism includes a second reciprocating push rod, the second reciprocating push rod is vertically installed at the upper end of the high-temperature water washing box, the output end of the second reciprocating push rod is installed at the lower end of the movable plate, and the two ends of the second rotating shaft close to the drying box side pass through the side wall of the high-temperature water washing box and are respectively installed with a third gear and a fourth gear through an internal meshing gear ratchet mechanism. The internal meshing gear ratchet mechanism is a prior art and is not elaborated in detail. The lower end of the movable plate directly above the third gear and the fourth gear is respectively installed with a first rack and a second rack, the third gear cooperates with the first rack, and the fourth gear cooperates with the second rack, the length of the third gear is greater than the length of the second rack, and under the action of the internal meshing gear ratchet mechanism, when the movable plate moves downward, the third gear can drive the second rotating shaft to rotate, while the fourth gear cannot drive the second rotating shaft to rotate, and when the movable plate moves upward, the third gear cannot drive the second rotating shaft to rotate, but the fourth gear can drive the second rotating shaft to rotate.

[0015] As a further solution of the present invention: the drying mechanism includes a belt conveyor, which is installed inside the drying box, and a guide plate is horizontally installed on the inner wall of the drying box at the lower end of the fixing frame and the drying box connection port, the input end of the belt conveyor is close to the lower end of the guide plate, and a heating coil for heating the inside of the drying box is horizontally installed inside the drying box above the belt conveyor, and an outlet pipe is installed at the output end of the heating coil, and the end of the outlet pipe away from the heating coil is installed at the bottom of the high-temperature water washing box, and a water inlet pipe is installed at the output end of the heating coil, and a pump water tank is installed at the end of the water inlet pipe away from the heating coil through the side wall of the high-temperature water washing box, and the pump water tank is installed at the bottom of the high-temperature water washing box, and a power component for pumping hot water inside the high-temperature water washing box into the water inlet pipe, the heating coil and the outlet pipe is provided on the pump water tank.

[0016] As a further solution of the present invention: a heat insulating layer for heat insulation and heat preservation is installed on the inner wall of the drying box.

[0017] As a further solution of the present invention: the power assembly includes a piston, which is slidably connected to the inner wall of the pump water box, a sliding plate is installed at the end of the piston close to the leakage baffle, and the end of the sliding plate away from the piston passes through the pump water box and is connected to a swing plate by a hinge rotation, and the end of the swing plate away from the sliding plate is connected to the lower end of the side wall of the leakage baffle by a hinge rotation, a suction pipe is installed on the side wall of the pump water box opposite to the output end of the water inlet pipe, the input end of the suction pipe and the output end of the water inlet pipe are both arranged on the side of the piston away from the leakage baffle, a second one-way valve is installed on the suction pipe, which only allows hot water inside the high-temperature water washing box to enter the pump water box, and a first one-way valve is installed on the water inlet pipe, which only allows hot water inside the pump water tank to be output to the water inlet pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention uses a first reciprocating push rod to reciprocate the squeezing box so that the squeezing box flattens the PET bottle. After flattening, the second gear meshes with the first gear so that the rotating roller and the friction convex block convey the flattened PET bottle to the crushing roller, thereby effectively improving the crushing efficiency of the PET bottle.

[0019] The present invention makes the length of the third gear greater than the length of the second rack, thereby making the distance conveyed toward the leak hole moving frame greater than the distance conveyed in the direction away from the leak hole moving frame, thereby realizing the conveyance of PET bottle flake particles, and the reciprocating movement of the leak hole cleaning plate can clean the PET bottle flake particles, thereby improving the efficiency of cleaning and conveying the PET bottle flake particles.

[0020] The present invention utilizes the up and down movement of the leak baffle as power, and under the action of the second one-way valve and the first one-way valve, transports the hot water inside the high-temperature water washing box to the inside of the heating coil, so that the heating coil dries the PET bottle flake particles on the belt conveyor inside the drying box, thereby improving the utilization efficiency of the hot water inside the high-temperature water washing box.

[0021] At the same time, the hot and humid air inside the drying box is dehumidified by the dehumidifier, and the dry hot air is transported to the fixed frame. After the leak hole moving frame is lifted into the fixed frame, the PET bottle flakes inside the leak hole moving frame are blown into the drying box, thereby improving the transportation efficiency of the PET bottle flakes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front structural schematic diagram of the present invention.

[0023] Figure 2 It is a rear structural schematic diagram of the present invention.

[0024] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the mobile component in the present invention.

[0026] Figure 5 It is a structural schematic diagram of the driving mechanism in the present invention.

[0027] Figure 6 It is a schematic structural diagram of the blowing assembly in the present invention.

[0028] Figure 7 It is a structural schematic diagram of the drying mechanism in the present invention.

[0029] Figure 8 It is a schematic diagram of the structure of the high temperature water washing box in the present invention.

[0030] Fig. 9It is a schematic diagram of the structure of the extrusion frame in the present invention.

[0031] Fig.10 It is a schematic diagram of the structure of the third gear and the fourth gear in the present invention.

[0032] Among them: 1. High-temperature water washing box; 2. First rotating shaft; 3. Crushing roller; 4. First opening; 5. Crushing box; 6. Extrusion frame; 7. Hopper; 8. Extrusion box; 9. First reciprocating push rod; 10. Controller; 11. Second reciprocating push rod; 12. Moving plate; 13. Fixed frame; 14. Sliding rod; 15. Guide plate; 16. Dehumidifier; 17. Suction frame; 18. Heating coil; 19. Drying box; 20. Belt conveyor; 21. Bracket; 22. Water outlet pipe; 23. Leakage hole moving frame; 24. Leakage hole baffle; 25. Limiting plate; 26. Swinging plate; 27. Sliding plate; 28. Conveyor belt; 29 , water inlet pipe; 30, pump water tank; 31, leak hole support plate; 32, second rotating shaft; 33, heater; 34, conveying roller; 35, leak hole inclined plate; 36, leak hole cleaning plate; 37, first gear; 38, third rotating shaft; 39, second gear; 40, limit groove; 41, air outlet pipe; 42, air inlet pipe; 43, third gear; 44, first rack; 45, driver; 46, fourth gear; 47, second rack; 48, rotating roller; 49, friction bump; 50, second opening; 51, air outlet frame; 52, first one-way valve; 53, piston; 54, second one-way valve; 55, water suction pipe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 10In an embodiment of the present invention, a PET bottle flake granulation device comprises a high-temperature water washing box 1, a crushing box 5 is installed on one side of the upper end of the high-temperature water washing box 1, a feed port is opened at the upper end of the high-temperature water washing box 1 inside the crushing box 5, a first opening 4 is opened at the center position of the upper end of the crushing box 5, two crushing rollers 3 that cooperate with each other to crush the PET bottle are arranged inside the crushing box 5, the first opening 4 is arranged between the two crushing rollers 3, a first rotating shaft 2 is installed at the center position of the crushing roller 3, one end of the first rotating shaft 2 passes through the crushing box 5 and is installed with a driver 45 for rotating the two crushing rollers 3 toward the first opening 4, the driver 45 is installed on the side wall of the crushing box 5, a controller 10 is installed at the upper end of the high-temperature water washing box 1, a PET bottle pretreatment mechanism for flattening the PET bottle to facilitate crushing the PET bottle is arranged at the upper end of the first opening 4, and a cleaning mechanism for cleaning the PET bottle flake particles is arranged inside the high-temperature water washing box 1.

[0035] A fixing frame 13 is installed on the side of the upper end of the high-temperature water washing box 1 opposite to the crushing box 5, and a discharge port is opened at the upper end of the high-temperature water washing box 1 inside the fixing frame 13. A drying box 19 is installed on the fixed frame 13 and the end of the high-temperature water washing box 1 away from the crushing box 5. The drying box 19 is connected to the fixing frame 13, and a bracket 21 for supporting the drying box 19 is installed at the lower end of the drying box 19. A conveying mechanism for conveying the cleaned PET bottle flakes to the drying box 19 is arranged inside the high-temperature water washing box 1 below the fixing frame 13, and a driving mechanism for driving the conveying mechanism of the cleaning mechanism is arranged at the upper end of the high-temperature water washing box 1, and a drying mechanism for drying the cleaned PET bottle flakes is arranged inside the drying box 19.

[0036] The PET bottle pretreatment mechanism includes an extrusion frame 6, the width of the first opening 4 is smaller than the width of the PET bottle that has not been flattened, and larger than the width of the PET bottle that has been flattened, the extrusion frame 6 is installed at the upper end of the crushing box 5, the inner wall of the extrusion frame 6 opposite to the open end is on the same vertical plane as the inner wall of the first opening 4, a hopper 7 for placing PET bottles is installed at the upper end of the extrusion frame 6, the width of the output end of the hopper 7 is larger than the width of the PET bottles, an extrusion box 8 for extruding the PET bottles is slidably connected to the inner wall of the extrusion frame 6, the width of the extrusion box 8 is larger than the width of the output end of the hopper 7, a first reciprocating push rod 9 for reciprocatingly pushing the extrusion box 8 to move is installed at one end of the extrusion box 8 away from the extrusion frame 6, the first reciprocating push rod 9 is installed at the upper end of the high-temperature water washing box 1 through a connecting block, and a moving component for conveying the PET bottles to the crushing roller 3 after the PET bottles are flattened is arranged inside the extrusion box 8.

[0037] The moving assembly includes a rotating roller 48, a limiting groove 40 is horizontally opened on the side wall of the extrusion frame 6 away from the driver 45, a second opening 50 is opened on the lower end of the side wall of the extrusion box 8 close to the extrusion frame 6, and the second opening 50 is on the same plane as the center point of the limiting groove 40, the rotating roller 48 is horizontally arranged inside the extrusion box 8 close to the second opening 50, and a friction protrusion 49 for conveying the flattened PET bottle is installed on the side wall of the rotating roller 48, and the friction protrusion 49 protrudes through the second opening 50, and a third rotating shaft 38 is installed at the center position of the rotating roller 48, and both ends of the third rotating shaft 38 are rotatably connected to the inner wall of the extrusion box 8, and one end of the third rotating shaft 38 close to the limiting groove 40 passes through the extrusion box 8 and the limiting groove 40 and is installed with a second gear 39, and the first rotating shaft 2 away from the side of the fixed frame 13 passes through the side wall of the crushing box 5 and is installed with a first gear 37 used in conjunction with the second gear 39.

[0038] When in use, the staff puts the PET bottle into the hopper 7, and then the driver 45 drives the first rotating shaft 2 and the crushing roller 3 to rotate, and starts the first reciprocating push rod 9 to reciprocate and extend. When the output end of the first reciprocating push rod 9 drives the extrusion box 8 away from the extrusion frame 6, the PET bottle in the hopper 7 falls into the extrusion frame 6. When the output end of the first reciprocating push rod 9 pushes the extrusion box 8 close to the extrusion frame 6, the extrusion box 8 and the inner wall of the extrusion frame 6 cooperate to extrude the PET bottle. When the extrusion of the PET bottle is completed, the second gear 39 on the extrusion box 8 is meshed with the first gear 37, and the first rotating shaft 2 away from the side of the fixed frame 13 drives the first gear 37 to drive, the first gear 37 drives the second gear 39 to rotate, the second gear 39 drives the third rotating shaft 38 to rotate, the third rotating shaft 38 drives the rotating roller 48 to rotate, and the rotating roller 48 drives the friction protrusion 49 to rotate. The friction protrusion 49 transports the flattened PET bottle to the crushing roller 3, so that the crushing roller 3 crushes the PET bottle, and the crushed PET bottle flakes enter the high-temperature water washing box 1 through the feed inlet.

[0039] The cleaning mechanism includes a leak hole support plate 31, the interior of the high temperature water washing box 1 is filled with cleaning liquid, the leak hole support plate 31 is horizontally installed inside the high temperature water washing box 1, the end of the leak hole support plate 31 close to the crushing box 5 is installed with a leak hole inclined plate 35, the end of the leak hole inclined plate 35 away from the leak hole support plate 31 is installed on the inner wall of the high temperature water washing box 1 obliquely upward, the leak hole inclined plate 35 is arranged below the feed port of the high temperature water washing box 1, the conveying mechanism is arranged on the side of the leak hole support plate 31 away from the leak hole inclined plate 35, and the lower end of the leak hole support plate 31 is installed with a leak hole inclined plate 35 for cleaning. A heater 33 is provided for heating the cleaning liquid inside the high-temperature water washing box 1. Two second rotating shafts 32 are rotatably connected to the inner wall of the high-temperature water washing box 1 above the leak hole support plate 31. The two second rotating shafts 32 are on the same horizontal plane. Conveying rollers 34 are installed on the side walls of the second rotating shafts 32. A conveyor belt 28 is sleeved on the conveyor rollers 34. Several leak hole cleaning plates 36 for reciprocatingly moving PET bottle flakes for cleaning are installed on the side walls of the conveyor belt 28. The end of the leak hole cleaning plate 36 away from the conveyor belt 28 is close to the upper end of the leak hole support plate 31.

[0040] The conveying mechanism includes a leak hole moving frame 23, a limiting plate 25 is vertically installed on the side of the lower end of the leak hole supporting plate 31 away from the leak hole inclined plate 35, and the two ends of the leak hole moving frame 23 are close to the limiting plate 25 and the inner wall of the high-temperature water washing box 1. A leak hole baffle 24 is vertically installed on the side of the lower end of the leak hole moving frame 23 close to the limiting plate 25 for preventing the PET bottle flakes from entering the bottom of the high-temperature water washing box 1 when the leak hole moving frame 23 rises. After the leak hole moving frame 23 descends, the lower end of the leak hole baffle 24 contacts the bottom of the high-temperature water washing box 1, and the leak hole moving frame 23 can pass through the discharge port of the high-temperature water washing box 1 inside the fixed frame 13. A sliding rod 14 is vertically installed on the upper end of the leak hole moving frame 23, and a moving plate 12 is installed on the upper end of the sliding rod 14 through the fixed frame 13. A blowing component for blowing the PET bottles inside the leak hole moving frame 23 into the drying box 19 is provided on the fixed frame 13.

[0041] The blowing assembly includes a dehumidifier 16, which is installed at the upper end of a drying box 19. An outlet pipe 41 is installed at the output end of the dehumidifier 16, and an outlet frame 51 is installed at one end of the outlet pipe 41 away from the dehumidifier 16. The outlet frame 51 is installed on the side wall of the fixed frame 13 close to the crushing box 5, and the outlet frame 51 is interconnected with the inside of the fixed frame 13. An air inlet pipe 42 is installed at the input end of the dehumidifier 16, and an air intake frame 17 is installed at one end of the air inlet pipe 42 away from the dehumidifier 16. The air intake frame 17 is installed at the upper end of the drying box 19, and the air intake frame 17 is interconnected with the inside of the drying box 19.

[0042] When in use, the dehumidifier 16 is started, and the hot and humid air inside the drying box 19 is transported to the inside of the dehumidifier 16 through the air inlet pipe 42 and the air suction frame 17. The dehumidifier 16 transports the treated dry hot air to the inside of the fixed frame 13 through the air outlet pipe 41 and the air outlet frame 51. Under the action of the airflow, the PET bottle flakes inside the leak hole moving frame 23 are blown into the inside of the drying box 19.

[0043] The driving mechanism includes a second reciprocating push rod 11, which is vertically mounted on the upper end of the high-temperature water washing box 1, and the output end of the second reciprocating push rod 11 is mounted on the lower end of the moving plate 12. The two ends of the second rotating shaft 32 near the drying box 19 pass through the side wall of the high-temperature water washing box 1 and are respectively mounted with a third gear 43 and a fourth gear 46 through an internal meshing tooth ratchet mechanism. The internal meshing tooth ratchet mechanism is a prior art and will not be described in detail. The lower end of the moving plate 12 just above the third gear 43 and the fourth gear 46 is respectively mounted with a first rack 44 and a fourth gear 46. The third gear 43 cooperates with the first rack 44, and the fourth gear 46 cooperates with the second rack 47. The length of the third gear 43 is greater than the length of the second rack 47. Under the action of the internal meshing tooth ratchet mechanism, when the movable plate 12 moves downward, the third gear 43 can drive the second rotating shaft 32 to rotate, while the fourth gear 46 cannot drive the second rotating shaft 32 to rotate. When the movable plate 12 moves upward, the third gear 43 cannot drive the second rotating shaft 32 to rotate, but the fourth gear 46 can drive the second rotating shaft 32 to rotate.

[0044] When in use, the second reciprocating push rod 11 is started to reciprocate and extend, and the output end of the second reciprocating push rod 11 drives the moving plate 12 to move back and forth, and the moving plate 12 drives the sliding rod 14, the first rack 44 and the second rack 47 to move.

[0045] When the moving plate 12 moves downward, the moving plate 12 drives the sliding rod 14 to move downward, and the sliding rod 14 drives the leakage hole moving frame 23 to move downward, so that the leakage hole moving frame 23 moves to the limiting plate 25, and at the same time, the moving plate 12 drives the first rack 44 to move, the first rack 44 drives the third gear 43 to rotate, the third gear 43 drives the second rotating shaft 32 to rotate, the second rotating shaft 32 drives the conveying roller 34 to rotate, the conveying roller 34 drives the conveyor belt 28 to rotate, and the conveyor belt 28 drives the leakage hole cleaning plate 36 to move, so that the leakage hole cleaning plate 36 pushes the PET bottle flakes on the upper end of the leakage hole support plate 31 to the leakage hole moving frame 23.

[0046] When the moving plate 12 moves upward, the moving plate 12 drives the sliding bar 14 to move upward, and the sliding bar 14 drives the leakage hole moving frame 23 to move upward, so that the leakage hole moving frame 23 moves to the inside of the fixed frame 13. At the same time, the moving plate 12 drives the second rack 47 to move upward, and the second rack 47 drives the fourth gear 46 to rotate, and the fourth gear 46 drives the second rotating shaft 32 to rotate, and the second rotating shaft 32 drives the conveying roller 34 to rotate, and the conveying roller 34 drives the conveyor belt 28 to rotate, and the conveyor belt 28 drives the leakage hole cleaning plate 36 to move, so that the leakage hole cleaning plate 36 pushes the PET bottle flakes on the upper end of the leakage hole supporting plate 31 to the side away from the leakage hole moving frame 23. Since the length of the third gear 43 is greater than the length of the second rack 47, the distance conveyed to the leakage hole moving frame 23 is greater than the distance conveyed in the direction away from the leakage hole moving frame 23, so that the PET bottle flakes can be conveyed, and the reciprocating movement of the leakage hole cleaning plate 36 can clean the PET bottle flakes.

[0047] The drying mechanism includes a belt conveyor 20, which is installed inside a drying box 19. A guide plate 15 is horizontally installed on the inner wall of the drying box 19 at the lower end of the connection between the fixed frame 13 and the drying box 19. The input end of the belt conveyor 20 is closely attached to the lower end of the guide plate 15. A heating coil 18 for heating the inside of the drying box 19 is horizontally installed inside the drying box 19 above the belt conveyor 20. A water outlet pipe is installed at the output end of the heating coil 18. 22, the end of the water outlet pipe 22 away from the heating coil 18 is installed at the bottom of the high-temperature water washing box 1, and the output end of the heating coil 18 is installed with a water inlet pipe 29, and the end of the water inlet pipe 29 away from the heating coil 18 passes through the side wall of the high-temperature water washing box 1 and is installed with a pump water tank 30, which is installed at the bottom of the high-temperature water washing box 1. The pump water tank 30 is provided with a power component for pumping hot water inside the high-temperature water washing box 1 into the water inlet pipe 29, the heating coil 18 and the water outlet pipe 22.

[0048] The power assembly includes a piston 53, which is slidably connected to the inner wall of the pump water box 30. A sliding plate 27 is installed at one end of the piston 53 close to the leak baffle 24. The end of the sliding plate 27 away from the piston 53 passes through the pump water box 30 and is connected to a swing plate 26 by a hinge rotation. The end of the swing plate 26 away from the sliding plate 27 is connected to the lower end of the side wall of the leak baffle 24 by a hinge rotation. A suction pipe 55 is installed on the side wall of the pump water box 30 opposite to the output end of the water inlet pipe 29. The input end of the suction pipe 55 and the output end of the water inlet pipe 29 are both arranged on the side of the piston 53 away from the leak baffle 24. A second one-way valve 54 is installed on the suction pipe 55, which only allows hot water inside the high-temperature water washing box 1 to enter the pump water box 30. A first one-way valve 52 is installed on the water inlet pipe 29, which only allows hot water inside the pump water box 30 to be output to the water inlet pipe 29.

[0049] When the leak baffle 24 moves upward, the leak baffle 24 drives the swing plate 26 to move, the swing plate 26 drives the sliding plate 27 to move, and the sliding plate 27 drives the piston 53 to move toward the leak baffle 24. Under the action of pressure, the hot water inside the high-temperature water washing box 1 enters the pump water box 30 through the suction pipe 55. When the leak baffle 24 moves downward, the leak baffle 24 drives the swing plate 26 to move, the swing plate 26 drives the sliding plate 27 to move, and the sliding plate 27 drives the piston 53 to move to the side away from the leak baffle 24. Under the action of pressure, the hot water inside the pump water box 30 flows to the inside of the heating coil 18 through the water inlet pipe 29. The heating coil 18 re-transports water to the inside of the high-temperature water washing box 1 through the water outlet pipe 22. At the same time, the heating coil 18 heats the inside of the drying box 19 to achieve drying of the PET bottle flakes on the belt conveyor 20.

[0050] Working principle of a PET bottle flake granulation equipment: When in use, the staff puts the PET bottle into the hopper 7, and then the driver 45 drives the first rotating shaft 2 and the crushing roller 3 to rotate, and starts the first reciprocating push rod 9 to reciprocate and extend. When the output end of the first reciprocating push rod 9 drives the extrusion box 8 away from the extrusion frame 6, the PET bottle in the hopper 7 falls into the extrusion frame 6. When the output end of the first reciprocating push rod 9 pushes the extrusion box 8 close to the extrusion frame 6, the extrusion box 8 and the inner wall of the extrusion frame 6 cooperate to extrude the PET bottle. When the extrusion of the PET bottle is completed, the second gear 39 on the extrusion box 8 is meshed with the first gear 37, and the first rotating shaft 2 away from the side of the fixed frame 13 drives the first gear 37 to drive, the first gear 37 drives the second gear 39 to rotate, the second gear 39 drives the third rotating shaft 38 to rotate, the third rotating shaft 38 drives the rotating roller 48 to rotate, and the rotating roller 48 drives the friction protrusion 49 to rotate. The friction protrusion 49 transports the flattened PET bottle to the crushing roller 3, so that the crushing roller 3 crushes the PET bottle, and the crushed PET bottle flakes enter the high-temperature water washing box 1 through the feed inlet.

[0051] Then the second reciprocating push rod 11 is started to reciprocate and extend, and the output end of the second reciprocating push rod 11 drives the moving plate 12 to move back and forth, and the moving plate 12 drives the sliding rod 14, the first rack 44 and the second rack 47 to move.

[0052] When the moving plate 12 moves downward, the moving plate 12 drives the sliding rod 14 to move downward, and the sliding rod 14 drives the leakage hole moving frame 23 to move downward, so that the leakage hole moving frame 23 moves to the limiting plate 25, and at the same time, the moving plate 12 drives the first rack 44 to move, the first rack 44 drives the third gear 43 to rotate, the third gear 43 drives the second rotating shaft 32 to rotate, the second rotating shaft 32 drives the conveying roller 34 to rotate, the conveying roller 34 drives the conveyor belt 28 to rotate, and the conveyor belt 28 drives the leakage hole cleaning plate 36 to move, so that the leakage hole cleaning plate 36 pushes the PET bottle flakes on the upper end of the leakage hole support plate 31 to the leakage hole moving frame 23.

[0053] When the moving plate 12 moves upward, the moving plate 12 drives the sliding bar 14 to move upward, and the sliding bar 14 drives the leakage hole moving frame 23 to move upward, so that the leakage hole moving frame 23 moves to the inside of the fixed frame 13. At the same time, the moving plate 12 drives the second rack 47 to move upward, and the second rack 47 drives the fourth gear 46 to rotate, and the fourth gear 46 drives the second rotating shaft 32 to rotate, and the second rotating shaft 32 drives the conveying roller 34 to rotate, and the conveying roller 34 drives the conveyor belt 28 to rotate, and the conveyor belt 28 drives the leakage hole cleaning plate 36 to move, so that the leakage hole cleaning plate 36 pushes the PET bottle flakes on the upper end of the leakage hole supporting plate 31 to the side away from the leakage hole moving frame 23. Since the length of the third gear 43 is greater than the length of the second rack 47, the distance conveyed to the leakage hole moving frame 23 is greater than the distance conveyed in the direction away from the leakage hole moving frame 23, so that the PET bottle flakes can be conveyed, and the reciprocating movement of the leakage hole cleaning plate 36 can clean the PET bottle flakes.

[0054] At the same time, the dehumidifier 16 is started, and the hot and humid air inside the drying box 19 is transported to the inside of the dehumidifier 16 through the air inlet pipe 42 and the air suction frame 17. The dehumidifier 16 transports the treated dry hot air to the inside of the fixed frame 13 through the air outlet pipe 41 and the air outlet frame 51. Under the action of the airflow, the PET bottle flakes inside the leak hole moving frame 23 are blown into the inside of the drying box 19.

[0055] When the leak baffle 24 moves upward, the leak baffle 24 drives the swing plate 26 to move, the swing plate 26 drives the sliding plate 27 to move, and the sliding plate 27 drives the piston 53 to move toward the leak baffle 24. Under the action of pressure, the hot water inside the high-temperature water washing box 1 enters the pump water box 30 through the suction pipe 55. When the leak baffle 24 moves downward, the leak baffle 24 drives the swing plate 26 to move, the swing plate 26 drives the sliding plate 27 to move, and the sliding plate 27 drives the piston 53 to move to the side away from the leak baffle 24. Under the action of pressure, the hot water inside the pump water box 30 flows to the inside of the heating coil 18 through the water inlet pipe 29. The heating coil 18 re-transports water to the inside of the high-temperature water washing box 1 through the water outlet pipe 22. At the same time, the heating coil 18 heats the inside of the drying box 19 to achieve drying of the PET bottle flakes on the belt conveyor 20.

[0056] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A PET bottle flake granulation device, comprising a high-temperature water washing box (1), a crushing box (5) is installed on one side of the upper end of the high-temperature water washing box (1), a feed port is opened at the upper end of the high-temperature water washing box (1) inside the crushing box (5), a first opening (4) is opened at the center position of the upper end of the crushing box (5), two crushing rollers (3) that cooperate with each other to crush PET bottles are arranged inside the crushing box (5), the first opening (4) is arranged between the two crushing rollers (3), a first rotating shaft (2) is installed at the center position of the crushing roller (3), one end of the first rotating shaft (2) passes through the crushing box (5) and is installed with a driver (45) for rotating the two crushing rollers (3) toward the first opening (4), the driver (45) is installed on the side wall of the crushing box (5), and a controller (10) is installed at the upper end of the high-temperature water washing box (1), characterized in that: The upper end of the first opening (4) is provided with a PET bottle pretreatment mechanism for flattening the PET bottle to facilitate crushing the PET bottle, and the interior of the high-temperature water washing box (1) is provided with a cleaning mechanism for cleaning PET bottle flake particles; A fixing frame (13) is installed on the side of the upper end of the high-temperature water washing box (1) opposite to the crushing box (5); a discharge port is provided at the upper end of the high-temperature water washing box (1) inside the fixing frame (13); a drying box (19) is installed at the end of the fixing frame (13) and the high-temperature water washing box (1) away from the crushing box (5); the drying box (19) and the fixing frame (13) are in communication with each other; a bracket (21) for supporting the drying box (19) is installed at the lower end of the drying box (19); a conveying mechanism for conveying cleaned PET bottle flakes to the drying box (19) is provided inside the high-temperature water washing box (1) below the fixing frame (13); a driving mechanism for driving a conveying mechanism of a cleaning mechanism is provided at the upper end of the high-temperature water washing box (1); and a drying mechanism for drying the cleaned PET bottle flakes is provided inside the drying box (19).

2. A PET bottle flake granulation equipment according to claim 1, characterized in that: The PET bottle pretreatment mechanism comprises a squeezing frame (6), the width of the first opening (4) is smaller than the width of the PET bottle that has not been squashed, and larger than the width of the PET bottle that has been squashed, the squeezing frame (6) is mounted on the upper end of the crushing box (5), the inner wall of the squeezing frame (6) opposite to the open end is on the same vertical plane as the inner wall of the first opening (4), a hopper (7) for placing PET bottles is mounted on the upper end of the squeezing frame (6), the width of the output end of the hopper (7) is larger than the width of the PET bottle, and the squeezing frame (6) An extrusion box (8) for extruding PET bottles is slidably connected to the inner wall of the hopper (7); the width of the extrusion box (8) is greater than the width of the output end of the hopper (7); a first reciprocating push rod (9) for reciprocatingly pushing the extrusion box (8) is installed at one end of the extrusion box (8) away from the extrusion frame (6); the first reciprocating push rod (9) is installed at the upper end of the high-temperature water washing box (1) through a connecting block; and a moving component for conveying the PET bottles to the crushing roller (3) after the PET bottles are flattened is arranged inside the extrusion box (8).

3. A PET bottle flake granulation equipment according to claim 2, characterized in that: The moving assembly comprises a rotating roller (48); a limiting groove (40) is horizontally provided on a side wall of the extrusion frame (6) away from the driver (45); a second opening (50) is provided at a lower end of a side wall of the extrusion box (8) close to the extrusion frame (6); the second opening (50) and a center point of the limiting groove (40) are on the same plane; the rotating roller (48) is horizontally arranged inside the extrusion box (8) close to the second opening (50); and a friction convex block (49) for conveying the flattened PET bottle is installed on the side wall of the rotating roller (48). The friction protrusion (49) protrudes through the second opening (50); a third rotating shaft (38) is installed at the center of the rotating roller (48); both ends of the third rotating shaft (38) are rotatably connected to the inner wall of the extrusion box (8); one end of the third rotating shaft (38) close to the limiting groove (40) passes through the extrusion box (8) and the limiting groove (40) and is installed with a second gear (39); and the first rotating shaft (2) on the side away from the fixed frame (13) passes through the side wall of the crushing box (5) and is installed with a first gear (37) used in conjunction with the second gear (39).

4. The PET bottle flake granulation equipment according to claim 1, characterized in that: The cleaning mechanism comprises a leak hole support plate (31), the interior of the high-temperature water washing box (1) is filled with cleaning liquid, the leak hole support plate (31) is horizontally installed inside the high-temperature water washing box (1), the end of the leak hole support plate (31) close to the crushing box (5) is installed with a leak hole inclined plate (35), the end of the leak hole inclined plate (35) away from the leak hole support plate (31) is installed on the inner wall of the high-temperature water washing box (1) in an inclined manner, the leak hole inclined plate (35) is arranged below the feed port of the high-temperature water washing box (1), the conveying mechanism is arranged on the side of the leak hole support plate (31) away from the leak hole inclined plate (35), and the lower end of the leak hole support plate (31) is installed with a A heater (33) is provided for heating the cleaning liquid inside the high-temperature water washing box (1); two second rotating shafts (32) are rotatably connected to the inner wall of the high-temperature water washing box (1) above the leak hole support plate (31); the two second rotating shafts (32) are on the same horizontal plane; a conveying roller (34) is installed on the side wall of the second rotating shaft (32); a conveying belt (28) is sleeved on the conveying roller (34); a plurality of leak hole cleaning plates (36) for reciprocatingly moving PET bottle flake particles for cleaning are installed on the side wall of the conveying belt (28); the leak hole cleaning plates (36) are located at one end away from the conveying belt (28) and close to the upper end of the leak hole support plate (31).

5. The PET bottle flake granulation equipment according to claim 4, characterized in that: The conveying mechanism comprises a leak hole moving frame (23), a limiting plate (25) being vertically mounted on a side of the lower end of the leak hole support plate (31) away from the leak hole inclined plate (35), two ends of the leak hole moving frame (23) being in close contact with the limiting plate (25) and the inner wall of the high-temperature water washing box (1), a leak hole baffle (24) being vertically mounted on a side of the lower end of the leak hole moving frame (23) close to the limiting plate (25) for preventing PET bottle flake particles from entering the bottom of the high-temperature water washing box (1) when the leak hole moving frame (23) rises, After (23) descends, the lower end of the leak hole baffle (24) contacts the bottom of the high-temperature water washing box (1), and the leak hole movable frame (23) can pass through the discharge port of the high-temperature water washing box (1) inside the fixed frame (13). A sliding rod (14) is vertically installed on the upper end of the leak hole movable frame (23), and a movable plate (12) is installed on the upper end of the sliding rod (14) through the fixed frame (13). A blowing component for blowing the PET bottles inside the leak hole movable frame (23) into the drying box (19) is provided on the fixed frame (13).

6. A PET bottle flake granulation equipment according to claim 5, characterized in that: The blowing assembly comprises a dehumidifier (16), the dehumidifier (16) being mounted on the upper end of a drying box (19), an outlet pipe (41) being mounted on the output end of the dehumidifier (16), an outlet frame (51) being mounted on the end of the outlet pipe (41) away from the dehumidifier (16), the outlet frame (51) being mounted on the side wall of the fixed frame (13) close to the crushing box (5), the outlet frame (51) being interconnected with the interior of the fixed frame (13), an inlet pipe (42) being mounted on the input end of the dehumidifier (16), an air intake frame (17) being mounted on the end of the air intake pipe (42) away from the dehumidifier (16), the air intake frame (17) being mounted on the upper end of the drying box (19), the air intake frame (17) being interconnected with the interior of the drying box (19).

7. The PET bottle flake granulation equipment according to claim 5, characterized in that: The driving mechanism comprises a second reciprocating push rod (11), the second reciprocating push rod (11) being vertically mounted on the upper end of the high-temperature water washing box (1), the output end of the second reciprocating push rod (11) being mounted on the lower end of the moving plate (12), the second rotating shaft (32) on the side close to the drying box (19) passing through the side wall of the high-temperature water washing box (1) and being respectively mounted with a third gear (43) and a fourth gear (46) via an internal meshing ratchet mechanism, the lower end of the moving plate (12) directly above the third gear (43) and the fourth gear (46) being respectively mounted with a first rack (44) and a second rack (47), the third gear ( The third gear (43) cooperates with the first rack (44), the fourth gear (46) cooperates with the second rack (47), the length of the third gear (43) is greater than the length of the second rack (47), and under the action of the internal meshing tooth ratchet mechanism, when the movable plate (12) moves downward, the third gear (43) can drive the second rotating shaft (32) to rotate, while the fourth gear (46) cannot drive the second rotating shaft (32) to rotate; when the movable plate (12) moves upward, the third gear (43) cannot drive the second rotating shaft (32) to rotate, but the fourth gear (46) can drive the second rotating shaft (32) to rotate.

8. The PET bottle flake granulation equipment according to claim 1, characterized in that: The drying mechanism comprises a belt conveyor (20), the belt conveyor (20) being installed inside a drying box (19), a guide plate (15) being installed horizontally on the inner wall of the drying box (19) below the connection port between the fixed frame (13) and the drying box (19), the input end of the belt conveyor (20) being closely attached to the lower end of the guide plate (15), a heating coil (18) for heating the inside of the drying box (19) being installed horizontally inside the drying box (19) above the belt conveyor (20), and a water outlet pipe (22) being installed at the output end of the heating coil (18) ), the end of the water outlet pipe (22) away from the heating coil (18) is installed at the bottom of the high-temperature water washing box (1), the output end of the heating coil (18) is installed with a water inlet pipe (29), the end of the water inlet pipe (29) away from the heating coil (18) passes through the side wall of the high-temperature water washing box (1) and is installed with a pump water tank (30), the pump water tank (30) is installed at the bottom of the high-temperature water washing box (1), and a power component for pumping hot water inside the high-temperature water washing box (1) into the water inlet pipe (29), the heating coil (18) and the water outlet pipe (22) is provided on the pump water tank (30).

9. The PET bottle flake granulation equipment according to claim 8, characterized in that: A heat insulating layer for heat insulation and heat preservation is installed on the inner wall of the drying box (19).

10. The PET bottle flake granulation equipment according to claim 8, characterized in that: The power assembly comprises a piston (53), the piston (53) being slidably connected to the inner wall of the pump water box (30), a sliding plate (27) being installed at one end of the piston (53) close to the leak baffle (24), the end of the sliding plate (27) away from the piston (53) passing through the pump water box (30) and being rotatably connected to a swing plate (26) via a hinge, the end of the swing plate (26) away from the sliding plate (27) being rotatably connected to the lower end of the side wall of the leak baffle (24) via a hinge, and the pump water box (30) and the water inlet pipe are connected to each other. A water suction pipe (55) is installed on the side wall opposite to the output end of the water suction pipe (29), the input end of the water suction pipe (55) and the output end of the water inlet pipe (29) are both arranged on the side of the piston (53) away from the leak baffle (24), the water suction pipe (55) is installed with a second one-way valve (54) that only allows hot water inside the high-temperature water washing box (1) to enter the pump water box (30), and the water inlet pipe (29) is installed with a first one-way valve (52) that only allows hot water inside the pump water box (30) to be output to the water inlet pipe (29).

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