Special material granulator for PE modification and regeneration

Abstract

The invention discloses a special PE modified regeneration material granulator, and relates to the technical field of granulators, the special PE modified regeneration material granulator comprises a case, supporting legs are mounted at four corners of the lower end of the case, feeding ports are formed in two sides of the upper end of the case, a material cavity is formed in the upper end of the interior of the case, and a plurality of exhaust holes are formed in the position, below the material cavity, of the case; the lower end of the material cavity is connected with an extrusion cylinder, and the outer surface of the extrusion cylinder is fixedly connected with a fixing frame. According to the present invention, the action assembly can drive the cutter to move during working, the cutter is subjected to pelletizing when the cutter is close to the mold cylinder, and the cutter is cooled when the cutter is far away from the mold cylinder, such that the situation that the cutter is in the high temperature state during the working process so as to cause the adhesion of the cut particles on the cutter is avoided, and the cutter rotates at the high speed so as to achieve the cutting effect. In the rotating process, large centrifugal force can be generated, and under the centrifugal force and the cooling effect, cut particles can be effectively prevented from being attached to the cutter.

Description

Technical Field

[0001] The invention relates to the technical field of granulators, in particular to a granulator for PE modified recycled materials. Background Art

[0002] PE material refers to polyethylene, which is a thermoplastic resin obtained by polymerization of ethylene. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance, good chemical stability, and can withstand corrosion from most acids and alkalis. It is insoluble in general solvents at room temperature, has low water absorption, and has excellent electrical insulation. In industry, it also includes copolymers of ethylene and a small amount of α-olefins.

[0003] When PE is modified and regenerated, a granulator is needed to make the modified material into granules. For example, a modified plastic granulator proposed in the prior art CN111531843B includes a power box, a barrel installed on one side of the power box, and a motor installed on the other side of the power box. The output shaft of the motor is fixedly connected to a driving rod, and a spiral blade is sleeved on the outer side of the driving rod. The machine uses a rotating spiral blade to extrude the material, melt it, extrude it from the discharge port and cut it, so as to achieve granulation.

[0004] However, the above-mentioned equipment still has certain defects in application. When the prior art is used, since the material needs to be melted before extrusion, the material still has a certain degree of adhesion after extrusion. The tool used to cut the particles in the prior art is coaxial with the spiral rod, and the spiral rod often rotates at a relatively slow speed to ensure that the material is fully melted and to control the extrusion speed. This causes the tool used to cut the material to loosen relatively slowly. During the pelletizing process, it is continuously baked by heat, and it itself has a high heat. At the same time, the rotation speed is relatively slow, which will cause the cut particles to adhere to the tool, forming particle adhesion, which seriously affects the granulation quality. At the same time, the prior art also needs to be equipped with cooling equipment for cooling after the particles are extruded, and integrated production cannot be achieved. In response to the above problems, we provide a granulator for PE modified recycled materials to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a granulator for PE modified recycled materials to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A granulator for special materials for PE modification and recycling, comprising a chassis, wherein four corners of the lower end of the chassis are equipped with support legs, both sides of the upper end of the chassis are equipped with feeding ports, a material cavity is provided at the upper end of the chassis, a plurality of exhaust holes are provided at the position below the material cavity, an extrusion cylinder is connected to the lower end of the material cavity, a fixing frame is fixedly connected to the outer surface of the extrusion cylinder, an end of the fixing frame away from the extrusion cylinder is fixedly connected to the inner wall of the chassis, a heating component is provided in the extrusion cylinder, a die cylinder is installed at the lower end of the extrusion cylinder, a plurality of die holes are provided on the die cylinder, and an extrusion component for extruding materials into the die cylinder is provided inside the extrusion cylinder and the material cavity; The lower end of the chassis is provided with a pelletizing assembly for cutting the material extruded from the die hole into pellets, and the lower end surface of the chassis is provided with a cold plate assembly; A discharge port is arranged on one side of the lower end of the chassis, and a conveying assembly for cooling and conveying particles is arranged below the discharge port.

[0007] As a further solution of the present invention: the heating component includes an annular heater, the annular heater is embedded in the inner wall of the extrusion cylinder, and the outer surface of the extrusion cylinder is wrapped with an insulating sleeve.

[0008] As a further scheme of the present invention: the extrusion assembly includes a central shaft, which is rotatably connected to the upper end of the material chamber, and a plurality of stirring frames are fixedly connected to the lower end of the central shaft. A planetary reducer is provided below the central shaft, and a plurality of inner support frames are fixedly connected to the outer shell of the planetary reducer, and the lower end of the inner support frame is fixedly connected to the lower end of the material chamber, the input shaft of the planetary reducer is fixedly connected to the lower end of the central shaft, and a spiral feeding rod is installed at the output end of the planetary reducer, and the spiral feeding rod is arranged inside the extrusion barrel, a driving shaft is installed on one side of the chassis using a bearing seat, and a first belt transmission mechanism for transmission is installed between the upper end of the driving shaft and the upper end of the central shaft, and a driving motor is also installed on the chassis on one side of the driving shaft, and a second belt transmission mechanism for transmission is installed between the output end of the driving motor and the driving shaft.

[0009] As a further scheme of the present invention: the pelletizing assembly includes a sleeve shaft, the sleeve shaft is rotatably connected to the middle position of the bottom of the chassis, and both sides of the end of the sleeve shaft that penetrates into the chassis are fixedly connected with an L-shaped frame, the sleeve shaft is rotatably connected with a hollow rotating shaft, the upper end of the hollow rotating shaft is fixedly connected with a disc, limited sliding grooves are provided on both sides of the disc, and a cross slider is slidably connected inside the limited sliding groove, and the upper end of the cross slider is fixedly connected with a cutting knife, and vertical sliding grooves are provided on both sides of the upper end of the hollow rotating shaft, and the upper end of the double-ear slider is slidably connected with a double-ear slider, and connecting rods are rotatably connected to the two sides of the double-ear slider, and one end of the connecting rod away from the double-ear slider is rotatably connected to the lower end of the cross slider, a tension spring is installed between the upper end surface of the hollow rotating shaft and the upper end of the double-ear slider, and the middle of the lower end of the double-ear slider is fixedly connected with an inner top shaft, the lower end surface of the chassis is provided with an action component for driving the double-ear slider to move downward, and the bottom of the chassis is also provided with a transmission component for driving the sleeve shaft and the hollow rotating shaft to rotate in the opposite direction.

[0010] As a further solution of the present invention: the action component includes an L-shaped plate, the L-shaped plate is fixedly connected to the positions on both sides of the lower end surface of the chassis, and electromagnets are installed on the L-shaped plate. The lower end surface of the chassis is also fixedly connected to the positions on both sides of the hollow rotating shaft, and a U-shaped plate is slidably connected between the two limit sliding bars. Iron blocks cooperating with the electromagnets are installed at both ends of the U-shaped plate, and the lower end of the inner top shaft is rotatably connected to the U-shaped plate.

[0011] As a further solution of the present invention: the transmission assembly includes a transmission shaft, which is rotatably connected to a position on one side of the lower end surface of the chassis by a support, and a first bevel gear is installed at the end of the transmission shaft away from the hollow rotating shaft and the lower end of the driving shaft, and the two first bevel gears are meshed with each other, and a second bevel gear is installed at the lower end of the hollow rotating shaft and the sleeve shaft, and a third bevel gear is installed at the end of the transmission shaft close to the hollow rotating shaft, and the two second bevel gears are respectively meshed with the two sides of the third bevel gear.

[0012] As a further solution of the present invention: the cold plate assembly includes a heat conducting plate, which is embedded in the lower end surface of the chassis, and a cooling coil is embedded in the heat conducting plate. Two first interfaces for communicating with both ends of the cooling coil are provided on the outside of the chassis.

[0013] As a further solution of the present invention: the conveying assembly includes a plurality of connecting cylinders, the connecting cylinders are evenly fixed at the lower end of the outer surface of the chassis, the connecting cylinders are slidably connected with connecting rods, the upper ends of the connecting rods are fixedly connected with inner sliders, the inner sliders are slidably connected to the inside of the connecting cylinders, a spring is connected between the upper end of the inner slider and the upper end surface of the connecting cylinder, a spiral flow channel is fixedly connected between the lower ends of the connecting rods, the feed port and the discharge port of the spiral flow channel are slidably connected, a shaking assembly for driving the spiral flow channel to shake is provided at the bottom of the chassis, a bottom coil is also embedded in the bottom of the spiral flow channel, and one side of the spiral flow channel is provided with two second interfaces connected to the two ports of the bottom coil.

[0014] As a further solution of the present invention: the shaking assembly includes a bottom shaft, the bottom shaft is rotatably connected between the lower ends of the supporting legs on both sides, a third belt transmission mechanism for transmission is provided between the bottom shaft and the transmission shaft, eccentric wheels are fixedly connected at both ends of the bottom shaft, wheel frames cooperating with the eccentric wheels are provided at the lower ends of both sides of the spiral flow channel, and rollers are provided at the lower ends of the wheel frames.

[0015] As a further solution of the present invention: the chassis is also provided with a controller and a timing module.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention can drive the cutter to move through the action component set during operation. When the cutter is close to the mold barrel, it cuts particles. When the cutter is away from the mold barrel, it cools the cutter to avoid the cutter being in a high temperature state during operation, causing the cut particles to adhere to the cutter. At the same time, the cutter rotates at a high speed, and a large centrifugal force will be generated during the rotation. Under the action of centrifugal force and cooling, the cut particles can be effectively prevented from adhering to the cutter. At the same time, when the cutter rotates, the blades will also be driven to rotate, driving the air flow inside the chassis to circulate. At the same time, in conjunction with the cold plate component and the reverse rotating L-shaped frame, the particles can be initially cold-cut while being stirred at a high speed to prevent the particles from sticking and clumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the other side of the present invention.

[0019] Figure 3 It is a schematic diagram of the bottom structure of the present invention.

[0020] Figure 4 It is a schematic diagram of the internal structure of the chassis in the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the action component in the present invention.

[0022] Figure 6 It is a schematic diagram of the structure of the heating component in the present invention.

[0023] Figure 7 It is a structural schematic diagram of the cold plate assembly in the present invention.

[0024] Figure 8 It is a schematic diagram of the local structure in the present invention.

[0025] Fig. 9 It is a schematic structural diagram of the bottom of the disc in the present invention.

[0026] Fig.10 It is a schematic diagram of the cross-sectional structure of the spiral flow channel in the present invention.

[0027] Fig.11 It is a schematic diagram of the internal structure of the hollow rotating shaft in the present invention.

[0028] Fig.12 It is a schematic diagram of the internal structure of the connecting tube in the present invention.

[0029] Fig.13 It is a schematic diagram of the partial cross-sectional structure of the disc in the present invention.

[0030] Among them: 1. Chassis; 2. Connecting tube; 3. Connecting rod; 4. Limiting slide; 5. First belt transmission mechanism; 6. Feeding port; 7. Support leg; 8. Spiral flow channel; 10. Drive shaft; 11. Drive motor; 12. Vertical slide; 13. Second belt transmission mechanism; 14. First bevel gear; 15. Discharge port; 16. Wheel frame; 17. Eccentric wheel; 18. L-shaped plate; 19. Cross slide; 20. Bottom shaft; 21. Third belt transmission mechanism; 22. Drive shaft; 23. Electromagnet; 24. Limiting slide; 25. Second bevel gear; 26. Third bevel gear; 27. U shaped plate; 28, iron block; 29, inner top shaft; 30, central shaft; 31, stirring frame; 32, planetary reducer; 33, extrusion cylinder; 34, fixed frame; 35, material cavity; 36, cutter; 37, mold cylinder; 38, disc; 39, sleeve shaft; 40, hollow shaft; 41, mold hole; 42, blade; 43, L-shaped frame; 44, spiral feeding rod; 45, inner support frame; 46, connecting rod; 47, double-ear slider; 48, tension spring; 49, heat conduction plate; 50, cooling coil; 51, first interface; 52, spring; 53, inner slider; 54, bottom coil; 55, second interface; 331. Ring heater; 332. Thermal insulation sleeve. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-Figure 13 In the embodiment of the present invention, a granulator for PE modified recycled materials includes a chassis 1, four corners of the lower end of the chassis 1 are installed with support legs 7, both sides of the upper end of the chassis 1 are provided with feeding ports 6, a material chamber 35 is opened at the upper end of the chassis 1, a plurality of exhaust holes are opened at the position below the material chamber 35, an extrusion cylinder 33 is connected to the lower end of the material chamber 35, a fixing frame 34 is fixedly connected to the outer surface of the extrusion cylinder 33, and an end of the fixing frame 34 away from the extrusion cylinder 33 is connected to the chassis 1 is fixedly connected to the inner wall of the extrusion cylinder 33, a heating component is arranged in the extrusion cylinder 33, a die cylinder 37 is installed at the lower end of the extrusion cylinder 33, a plurality of die holes 41 are opened on the die cylinder 37, and an extrusion component for extruding the material into the die cylinder 37 is arranged inside the extrusion cylinder 33 and the material cavity 35; when working, the heating component heats the inside of the extrusion cylinder 33 to fully melt the material, and then the material is transported through the extrusion component and extruded from the die holes 41 on the die cylinder 37. The two feeding ports 6 are arranged to facilitate the feeding of materials when in use.

[0033] The heating component includes an annular heater 331, which is embedded in the inner wall of the extrusion cylinder 33. The outer surface of the extrusion cylinder 33 is wrapped with an insulating sleeve 332. When heating, the annular heater 331 generates heat, and the heat is conducted to the material through the annular heater 331 to melt the material. The insulating sleeve 332 can play a role in insulation and reduce heat overflow.

[0034] The extrusion assembly includes a central shaft 30, which is rotatably connected to the upper end of a material chamber 35, and a plurality of stirring frames 31 are fixedly connected to the lower end of the central shaft 30. A planetary reducer 32 is provided below the central shaft 30, and a plurality of inner support frames 45 are fixedly connected to the outer shell of the planetary reducer 32. The lower end of the inner support frame 45 is fixedly connected to the lower end of the material chamber 35. The input shaft of the planetary reducer 32 is fixedly connected to the lower end of the central shaft 30, and a spiral feeding rod 44 is installed at the output end of the planetary reducer 32. The spiral feeding rod 44 is arranged inside the extrusion cylinder 33. A drive shaft 10 is installed on one side of the chassis 1 using a bearing seat, and a first belt transmission mechanism 5 for transmission is installed between the upper end of the drive shaft 10 and the upper end of the central shaft 30. The chassis 1 is located on one side of the drive shaft 10. A driving motor 11 is installed, and a second belt transmission mechanism 13 for transmission is installed between the output end of the driving motor 11 and the driving shaft 10; when working, the driving motor 11 drives the second belt transmission mechanism 13 to operate, and the operation of the second belt transmission mechanism 13 drives the driving shaft 10 to rotate, and the rotation of the driving shaft 10 drives the first belt transmission mechanism 5 to operate, and the operation of the first belt transmission mechanism 5 drives the central shaft 30 to rotate, and the rotation of the central shaft 30 drives the stirring frame 31. The rotation of the stirring frame 31 can mix the input materials, and the rotation of the central shaft 30 can also drive the internal transmission parts of the planetary reducer 32 to rotate, and after deceleration by the planetary reducer 32, the power is transmitted to the spiral feeding rod 44, and the rotation of the spiral feeding rod 44 drives the material to be squeezed downward and squeezed into the inside of the mold barrel 37.

[0035] The lower end of the chassis 1 is provided with a pelletizing assembly for cutting the material extruded from the die hole 41 into pellets, and the pelletizing assembly includes a sleeve shaft 39, which is rotatably connected to the middle position of the bottom of the chassis 1, and the sleeve shaft 39 is fixedly connected to L-shaped frames 43 on both sides of one end that penetrates into the chassis 1, and a hollow rotating shaft 40 is rotatably connected inside the sleeve shaft 39, and a disc 38 is fixedly connected to the upper end of the hollow rotating shaft 40, and limiting slide grooves 4 are provided on both sides of the disc 38, and a cross slider 19 is slidably connected inside the limiting slide groove 4, and a cutter 36 is fixedly connected to the upper end of the cross slider 19, and the hollow rotating shaft 4 0, vertical slide grooves 12 are provided on both sides of the upper end of the interior, a double-ear slider 47 is slidably connected to the upper end of the hollow shaft 40, and connecting rods 46 are rotatably connected to both sides of the double-ear slider 47. The end of the connecting rod 46 away from the double-ear slider 47 is rotatably connected to the lower end of the cross slider 19. A tension spring 48 is installed between the upper end surface of the interior of the hollow shaft 40 and the upper end of the double-ear slider 47. The middle of the lower end of the double-ear slider 47 is fixedly connected to the inner top shaft 29. The lower end surface of the chassis 1 is provided with an action component for driving the double-ear slider 47 to move downward, and the bottom of the chassis 1 is also provided with a driving sleeve shaft 39 and the hollow shaft 40 for reverse rotation. When working, the transmission assembly transmits power to the sleeve shaft 39 and the hollow shaft 40 to rotate in opposite directions. The rotation of the sleeve shaft 39 can drive the L-shaped frame 43 to rotate. The rotation of the L-shaped frame 43 is used to move the particles so that the particles are discharged from the discharge port 15 under the action of centrifugal force. The rotation of the hollow shaft 40 can drive the disc 38 to rotate. The rotation of the disc 38 can drive the blades 42 to operate. The operation of the blades 42 can generate airflow inside the chassis 1, and the preliminary cooling of the particles can be achieved by cooperating with the cold plate assembly. At the same time, the action assembly set can drive the double-ear slider 47 to perform intermittent action when working. When the double-ear slider 4 When the double-ear slider 47 moves upward under the action of the tension spring 48, the double-ear slider 47 drives the connecting rod 46 to move accordingly. The movement of the connecting rod 46 drives the cross slider 19 and the cutter 36 to approach the die barrel 37 to perform circular cutting on the extruded material to form particles. Since the cutter 36 rotates at a high speed, the cut particles are thrown away under the action of centrifugal force. When the double-ear slider 47 moves upward under the action of the tension spring 48, the double-ear slider 47 drives the connecting rod 46 to move accordingly. The movement of the connecting rod 46 can drive the cutter 36 and the cross slider 19 away from the die barrel 37, and the pelletizing is stopped after they are away. At the same time, the heat is quickly dissipated under high-speed operation to prevent the problem of particle adhesion caused by the over-high temperature of the cutter 36.

[0036] The action component includes an L-shaped plate 18, which is fixedly connected to the positions on both sides of the lower end surface of the chassis 1, and the L-shaped plate 18 is installed with an electromagnet 23. The lower end surface of the chassis 1 is located on both sides of the hollow shaft 40 and is also fixedly connected with a limit slide bar 24. A U-shaped plate 27 is slidably connected between the two limit slide bars 24. Both ends of the U-shaped plate 27 are installed with iron blocks 28 that cooperate with the electromagnet 23, and the lower end of the inner top shaft 29 is rotatably connected to the U-shaped plate 27; the chassis 1 is also provided with a controller and a timing module; the timing module can be set during operation. When the interval time is reached, the electromagnet 23 is energized to attract the iron block 28, so that the U-shaped plate 27 moves downward, and the downward movement of the U-shaped plate 27 drives the inner top shaft 29 to move downward synchronously. When the electromagnet 23 is powered off, the inner top shaft 29 is reset under the action of the tension spring 48, so that the intermittent lifting movement of the inner top shaft 29 can be realized during operation.

[0037] The transmission assembly includes a transmission shaft 22, which is rotatably connected to a position on one side of the lower end surface of the chassis 1 by a support. The first bevel gear 14 is installed at the end of the transmission shaft 22 away from the hollow rotating shaft 40 and the lower end of the driving shaft 10, and the two first bevel gears 14 are meshed with each other. The second bevel gear 25 is installed at the lower ends of the hollow rotating shaft 40 and the sleeve shaft 39, and the third bevel gear 26 is installed at the end of the transmission shaft 22 close to the hollow rotating shaft 40, and the two second bevel gears 25 are respectively meshed with the two sides of the third bevel gear 26; during transmission, the driving shaft 10 drives the first bevel gear 14 to rotate, and the first bevel gear 14 rotates to transmit power to the transmission shaft 22, and the transmission shaft 22 rotates to drive the third bevel gear 26 to rotate, and the third bevel gear 26 rotates to drive the two second bevel gears 25 to rotate. Since the two second bevel gears 25 rotate in opposite directions, the sleeve shaft 39 and the hollow rotating shaft 40 rotate in opposite directions.

[0038] A cold plate assembly is provided at the lower end surface of the chassis 1; the cold plate assembly includes a heat conducting plate 49, which is embedded in the lower end surface of the chassis 1, and a cooling coil 50 is embedded in the heat conducting plate 49. Two first interfaces 51 for communicating with the two ends of the cooling coil 50 are provided on the outside of the chassis 1; when working, the two first interfaces 51 are connected to a cold water source, and when working, the coolant enters the cooling coil 50 from one of the first interfaces 51, so that the heat conducting plate 49 is in a low temperature state, and the coolant flows out from the other first interface 51 after passing through the cooling coil 50.

[0039] A discharge port 15 is provided on one side of the lower end of the chassis 1, and a conveying assembly for cooling and conveying particles is provided below the discharge port 15; the conveying assembly includes a plurality of connecting tubes 2, the connecting tubes 2 are evenly fixed on the lower end of the outer surface of the chassis 1, and the connecting tubes 2 are slidably connected with connecting rods 3 inside, and the upper ends of the connecting rods 3 are fixedly connected with inner sliders 53, and the inner sliders 53 are slidably connected with the inside of the connecting tube 2, and a spring 52 is connected between the upper ends of the inner sliders 53 and the upper end surface of the connecting tube 2, and a spiral flow channel 8 is fixedly connected between the lower ends of the connecting rods 3, and the feed port of the spiral flow channel 8 is slidably connected with the discharge port 15, and a shaking assembly for driving the spiral flow channel 8 to shake is provided below the chassis 1, and a bottom coil 54 is also embedded in the bottom of the spiral flow channel 8, and one side of the spiral flow channel 8 is provided with two second interfaces 55 connected with two ports of the bottom coil 54; when working, The particles discharged from the discharge port 15 enter the spiral flow channel 8, flow along the spiral flow channel 8 under the action of shaking and are discharged from the port of the spiral flow channel 8. At the same time, the bottom coil 54 can pass coolant to cool the spiral flow channel 8 during operation.

[0040] The shaking assembly includes a bottom shaft 20, which is rotatably connected between the lower ends of the supporting legs 7 on both sides. A third belt transmission mechanism 21 for transmission is provided between the bottom shaft 20 and the transmission shaft 22. Eccentric wheels 17 are fixedly connected at both ends of the bottom shaft 20. Wheel frames 16 cooperating with the eccentric wheels 17 are provided at the lower ends of both sides of the spiral flow channel 8, and rollers are provided at the lower ends of the wheel frames 16. When working, the transmission shaft 22 rotates to drive the third belt transmission mechanism 21 to operate, and the operation of the third belt transmission mechanism 21 drives the bottom shaft 20 to rotate. The rotation of the bottom shaft 20 drives the eccentric wheel 17. The eccentric wheel 17 cooperates with the wheel frame 16, thereby driving the spiral flow channel 8 to shake.

[0041] The working principle of the present invention is as follows: during operation, the driving motor 11 drives the second belt transmission mechanism 13 to operate, the operation of the second belt transmission mechanism 13 drives the driving shaft 10 to rotate, the rotation of the driving shaft 10 drives the first belt transmission mechanism 5 to operate, the operation of the first belt transmission mechanism 5 drives the central shaft 30 to rotate, the rotation of the central shaft 30 drives the stirring frame 31, the stirring frame 31 rotates to mix the input materials, the rotation of the central shaft 30 can also drive the internal transmission components of the planetary reducer 32 to rotate, and the power is reduced after the planetary reducer 32 reduces the speed. The power is transmitted to the spiral feeding rod 44, and the rotation of the spiral feeding rod 44 drives the material to be squeezed downward, squeezed into the interior of the mold cylinder 37, and extruded from the mold hole 41 on the mold cylinder 37. At the same time, the transmission component transmits power to the sleeve shaft 39 and the hollow shaft 40 to rotate in the opposite direction. The rotation of the sleeve shaft 39 can drive the L-shaped frame 43 to rotate. The rotation of the L-shaped frame 43 is used to move the particles so that the particles are discharged from the discharge port 15 under the action of centrifugal force. The rotation of the hollow shaft 40 can drive the disc 38 to rotate. The rotation of the disc 38 can drive the blade 42 to operate. The operation of the blade 42 The drive can generate airflow inside the chassis 1, and the cold plate assembly can achieve preliminary cooling of the particles. At the same time, the action assembly set can drive the double-ear slider 47 to perform intermittent action during operation. When the double-ear slider 47 moves downward, it will drive the connecting rod 46 to move accordingly. After the connecting rod 46 moves, it will drive the cross slider 19 and the cutter 36 to approach the die cylinder 37 to perform circular cutting on the extruded material to form particles. Since the cutter 36 rotates at a high speed, the cut particles are thrown away under the action of centrifugal force. When the double-ear slider 47 moves upward under the action of the tension spring 48, the double-ear slider 47 The movement of the connecting rod 46 can drive the cutter 36 and the cross slider 19 to move away from the die barrel 37. After moving away, the pelletizing is stopped. At the same time, the heat is quickly dissipated under high-speed operation to prevent the cutter 36 from being overheated and causing the particles to stick together. The particles discharged from the discharge port 15 enter the spiral flow channel 8, flow along the spiral flow channel 8 under the action of shaking, and are discharged from the port of the spiral flow channel 8. At the same time, the bottom coil 54 can pass coolant to cool the spiral flow channel 8 during operation, so that the particles can be better cooled when passing through the spiral flow channel 8.

[0042] 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 basic features of the present invention. Although this specification is described in accordance with the implementation modes, not every implementation mode includes only one technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A granulator for PE modified recycled materials, comprising a chassis (1), wherein four corners of the lower end of the chassis (1) are each provided with support legs (7), characterized in that: Both sides of the upper end of the chassis (1) are provided with feeding ports (6); a material cavity (35) is provided at the upper end of the chassis (1); a plurality of exhaust holes are provided at a position below the material cavity (35); an extrusion cylinder (33) is connected to the lower end of the material cavity (35); a fixing frame (34) is fixedly connected to the outer surface of the extrusion cylinder (33); an end of the fixing frame (34) away from the extrusion cylinder (33) is fixedly connected to the inner wall of the chassis (1); a heating component is provided in the extrusion cylinder (33); a die cylinder (37) is installed at the lower end of the extrusion cylinder (33); a plurality of die holes (41) are provided on the die cylinder (37); and an extrusion component for extruding material into the die cylinder (37) is provided inside the extrusion cylinder (33) and the material cavity (35); A pelletizing assembly for cutting the material extruded from the die hole (41) into pellets is provided at the lower end of the interior of the chassis (1), and a cold plate assembly is provided at the lower end surface of the chassis (1); A discharge port (15) is provided on one side of the lower end of the chassis (1), and a conveying assembly for cooling and conveying particles is provided below the discharge port (15).

2. A granulator for PE modified recycled materials according to claim 1, characterized in that: The heating component comprises an annular heater (331), wherein the annular heater (331) is embedded in the inner wall of the extrusion cylinder (33), and the outer surface of the extrusion cylinder (33) is wrapped with a heat insulation sleeve (332).

3. The PE modified recycled material granulator according to claim 1, characterized in that: The extrusion assembly comprises a central shaft (30), the central shaft (30) being rotatably connected to the upper end of a material chamber (35), the lower end of the central shaft (30) being fixedly connected to a plurality of stirring racks (31), a planetary reducer (32) being provided below the central shaft (30), the outer shell of the planetary reducer (32) being fixedly connected to a plurality of inner support racks (45), the lower end of the inner support rack (45) being fixedly connected to the lower end of the material chamber (35), the input shaft of the planetary reducer (32) being fixedly connected to the lower end of the central shaft (30), and the planetary reducer (32) being fixedly connected to the lower end of the material chamber (35). A spiral feed rod (44) is installed at the output end, and the spiral feed rod (44) is arranged inside the extrusion cylinder (33). A drive shaft (10) is installed on one side of the chassis (1) using a bearing seat, and a first belt transmission mechanism (5) for transmission is installed between the upper end of the drive shaft (10) and the upper end of the central shaft (30). A drive motor (11) is also installed on one side of the chassis (1) located on the drive shaft (10), and a second belt transmission mechanism (13) for transmission is installed between the output end of the drive motor (11) and the drive shaft (10).

4. A granulator for PE modified recycled materials according to claim 3, characterized in that: The pelletizing assembly comprises a sleeve shaft (39), the sleeve shaft (39) being rotatably connected to a middle position at the bottom of the chassis (1), the sleeve shaft (39) having an end that penetrates into the chassis (1) being fixedly connected to L-shaped frames (43) on both sides, the sleeve shaft (39) having a hollow rotating shaft (40) being rotatably connected thereto, the upper end of the hollow rotating shaft (40) being fixedly connected to a disk (38), both sides of the disk (38) being provided with limit slide grooves (4), the inside of the limit slide grooves (4) being slidably connected to a cross slide block (19), the upper end of the cross slide block (19) being fixedly connected to a cutter (36), both sides of the upper end of the hollow rotating shaft (40) being provided with vertical slide grooves (12), The upper end of the hollow rotating shaft (40) is slidably connected to a double-ear slider (47), and both sides of the double-ear slider (47) are rotatably connected to connecting rods (46). One end of the connecting rod (46) away from the double-ear slider (47) is rotatably connected to the lower end of the cross slider (19). A tension spring (48) is installed between the upper end surface of the hollow rotating shaft (40) and the upper end of the double-ear slider (47). The middle of the lower end of the double-ear slider (47) is fixedly connected to an inner top shaft (29). The lower end surface of the chassis (1) is provided with an action component for driving the double-ear slider (47) to move downward. The bottom of the chassis (1) is also provided with a transmission component for driving the sleeve shaft (39) and the hollow rotating shaft (40) to rotate in the opposite direction.

5. A granulator for PE modified recycled materials according to claim 4, characterized in that: The action assembly comprises an L-shaped plate (18), the L-shaped plate (18) being fixedly connected to positions on both sides of the lower end surface of the chassis (1), the L-shaped plate (18) being mounted with electromagnets (23), the lower end surface of the chassis (1) being fixedly connected to positions on both sides of the hollow rotating shaft (40), a limit slide bar (24) being slidably connected between the two limit slide bars (24), the two ends of the U-shaped plate (27) being mounted with iron blocks (28) cooperating with the electromagnets (23), and the lower end of the inner top shaft (29) being rotatably connected to the U-shaped plate (27).

6. A granulator for PE modified recycled materials according to claim 5, characterized in that: The transmission assembly comprises a transmission shaft (22), the transmission shaft (22) being rotatably connected to a position on one side of the lower end surface of the chassis (1) by means of a support, a first bevel gear (14) being installed at an end of the transmission shaft (22) away from the hollow rotating shaft (40) and at a position at a lower end of the drive shaft (10), the two first bevel gears (14) being meshed with each other, a second bevel gear (25) being installed at the lower ends of the hollow rotating shaft (40) and the sleeve shaft (39), a third bevel gear (26) being installed at an end of the transmission shaft (22) close to the hollow rotating shaft (40), the two second bevel gears (25) being meshed with two sides of the third bevel gear (26) respectively.

7. The PE modified recycled special material granulator according to claim 1, characterized in that: The cold plate assembly comprises a heat conducting plate (49), the heat conducting plate (49) being embedded in a lower end surface of the chassis (1), a cooling coil (50) being embedded in the heat conducting plate (49), and two first interfaces (51) for communicating with two ends of the cooling coil (50) being provided on the outside of the chassis (1).

8. The PE modified recycled material granulator according to claim 6, characterized in that: The conveying assembly comprises a plurality of connecting cylinders (2), the connecting cylinders (2) being evenly fixed on the lower ends of the outer surfaces of the chassis (1), the connecting cylinders (2) being slidably connected with connecting rods (3), the upper ends of the connecting rods (3) being fixedly connected with inner sliders (53), the inner sliders (53) being slidably connected with the inside of the connecting cylinders (2), a spring (52) being connected between the upper ends of the inner sliders (53) and the upper end surface of the inside of the connecting cylinders (2), a spiral flow channel (8) being fixedly connected between the lower ends of the connecting rods (3), the feed port and the discharge port (15) of the spiral flow channel (8) being slidably connected, a shaking assembly for driving the spiral flow channel (8) to shake is provided below the chassis (1), a bottom coil (54) is also embedded in the bottom of the spiral flow channel (8), and two second interfaces (55) communicating with two ports of the bottom coil (54) are provided on one side of the spiral flow channel (8).

9. A granulator for PE modified recycled materials according to claim 8, characterized in that: The shaking assembly comprises a bottom shaft (20), the bottom shaft (20) being rotatably connected between the lower ends of the supporting legs (7) on both sides, a third belt transmission mechanism (21) for transmission is provided between the bottom shaft (20) and the transmission shaft (22), both ends of the bottom shaft (20) are fixedly connected with eccentric wheels (17), the lower ends of both sides of the spiral flow channel (8) are provided with wheel frames (16) cooperating with the eccentric wheels (17), and the lower ends of the wheel frames (16) are provided with rollers.

10. The granulator for PE modified recycled materials according to claim 1, characterized in that: The chassis (1) is also provided with a controller and a timing module.

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