Regenerated plastic particle manufacturing device

Abstract

The invention belongs to the technical field of pelletizers, and particularly relates to a regenerated plastic particle manufacturing device which comprises a rack and a hot melting assembly, the hot melting assembly is arranged at the top of the rack, an extrusion assembly is arranged at the bottom of the rack, and the hot melting assembly communicates with the extrusion assembly through a connecting cylinder; a pelletizing assembly is arranged at one end of the extrusion assembly and comprises a shell cover fixedly connected to one end of the extrusion assembly, a driver is arranged in the shell cover, and pelletizing assemblies distributed around the axis of the extrusion assembly at equal intervals are rotationally connected to the side wall of the driver; and the end part of the extrusion assembly is fixedly connected with a driving shaft for driving a driver to rotate. According to the plastic extrusion device, recycled plastic is primarily heated through the hot melting assembly and then melted again through the extrusion assembly to be extruded, the hot melting assembly and the extrusion assembly are designed in an up-down layered mode, the length of the second heating cylinder can be reduced, and therefore the space occupied by the device in the horizontal direction is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of granulators, and in particular relates to a device for manufacturing recycled plastic particles. Background Art

[0002] Recycled plastic refers to plastic raw materials obtained by recycling, processing and reusing waste plastic products. The production process of this material usually includes steps such as collecting waste plastics, sorting, cleaning, crushing, melting and molding. Recycled plastics can be used to manufacture various new plastic products, thereby reducing dependence on fossil fuels, reducing greenhouse gas emissions, and reducing landfill volume. When recycled plastics are recycled, they need to be granulated for easy storage and use. A granulator is required for granulating recycled plastics.

[0003] The commonly used granulator has an integrated extruder barrel. Crushed recycled plastic is added into the extruder barrel, and the screw in the barrel drives the plastic forward. To ensure that the plastic is fully heated, the extruder barrel needs to have a certain length. The integrated extruder barrel is longer and occupies more plant area. A large torque motor is required to drive the extruder barrel to operate. In addition, the pelletizing structure of the existing granulator generally drives the cutter to work by installing a motor at the tail of the machine body. This driving method requires additional driving components, which increases manufacturing costs and energy consumption. Summary of the invention

[0004] The object of the present invention is to provide a device for producing recycled plastic particles, which can improve the working efficiency of power elements and save electric energy, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a recycled plastic granule manufacturing device, comprising a frame and a hot melt component, wherein the hot melt component is arranged on the top of the frame, an extrusion component is arranged at the bottom of the frame, the hot melt component and the extrusion component are connected through a connecting tube, and a pelletizing component is arranged at one end of the extrusion component; The pelletizing assembly includes a shell cover fixedly connected to one end of the extrusion assembly, a driver is arranged inside the shell cover, the side wall of the driver is rotatably connected to the pelletizing assembly equidistantly distributed around the axis of the extrusion assembly, and the end of the extrusion assembly is fixedly connected to a driving shaft for driving the driver to rotate, and the driving shaft passes through the driver.

[0006] Furthermore, the rack includes an upper rack and a lower rack which are correspondingly distributed up and down, and support columns distributed in a rectangular array are fixedly connected between the lower rack and the upper rack.

[0007] Furthermore, the hot melt assembly includes a first heating cylinder fixedly installed on the top of the upper frame, the first heating cylinder is rotatably connected to the inside of the first heating cylinder, one end of the top of the first heating cylinder is fixedly connected to a feed hopper, the top of the upper frame is fixedly connected to a first coupling, a first reduction box and a first motor, one end of the first spiral rod is fixedly connected to one end of the first reduction box through a first coupling, the output shaft of the first motor and the input shaft of the first reduction box are fixedly sleeved with a first pulley, and the two first pulleys are connected by a belt drive.

[0008] Furthermore, the extrusion assembly includes a second heating cylinder fixedly connected to the top of the bottom frame, the second heating cylinder and the first heating cylinder are connected through a connecting cylinder, the second heating cylinder is rotatably connected to the inside of the second heating cylinder, an extrusion mold is installed at one end of the inside of the second heating cylinder, one end of the second screw rod passes through the middle of the extrusion mold, a second coupling, a second reduction box and a second motor are fixedly connected to the top of the bottom frame, the other end of the second screw rod is fixedly connected to the second reduction box through a second coupling, the output shaft of the second motor and the input end of the second reduction box are fixedly sleeved with a second pulley, and the two second pulleys are connected by belt transmission.

[0009] Furthermore, one end of the shell cover is provided with observation grooves equidistantly distributed around the axis of the shell cover, and the bottom of the side wall of the shell cover is provided with a leakage groove.

[0010] Furthermore, the driving shaft is a hollow structure, the side wall of the driving shaft is provided with equally spaced sliding grooves, the interior of the screw rod is rotatably connected to a screw rod, and one end of the screw rod is fixedly connected to a hexagonal head.

[0011] Furthermore, the driver includes a center gear and an internal gear, the driving shaft passes through the center gear, a center hole is provided in the middle of the center gear, a threaded barrel is provided inside the center hole, the threaded barrel is threadedly connected to the screw rod, the side wall of the threaded barrel is fixedly connected with equidistantly distributed slides, a number of the slides are respectively slidably connected inside a number of the slide grooves, symmetrically distributed transmission gears are provided between the center gear and the internal gear, the center gear is meshed and transmitted with the internal gear through the two transmission gears, and the transmission gear is rotationally connected to one end of the shell cover through a rotating shaft.

[0012] Furthermore, a base cylinder is rotatably connected to the middle part of the extrusion die, the drive shaft is rotatably connected to the base cylinder through a bearing, a disc is fixedly connected to one end of the base cylinder, connecting rods distributed evenly are fixedly connected between the internal gear and the base cylinder, protrusions distributed evenly are fixedly connected to one end of the disc, and a groove matching the protrusion is provided on the surface of the center gear.

[0013] Furthermore, an annular groove is provided at the edge of one end of the disc, and through holes distributed at equal intervals are provided at one end of the annular groove. A diverter is provided inside the annular groove, and the diverter includes a circular ring, and ejector pins distributed at equal intervals are fixedly connected to one end of the circular ring. Several ejector pins respectively pass through several through holes, and a spring is fixedly connected inside the through hole. The spring is sleeved on the side wall of the corresponding ejector pin, and one end of the spring is fixedly connected to the side wall of the ejector pin.

[0014] Furthermore, the pelletizing assembly includes a pelletizing knife, one end of which is fixedly connected to a shaft rod and a swivel, the shaft rod and the swivel are concentrically arranged, the side wall of the base cylinder is provided with a mounting groove corresponding to the shaft rod, the periphery of the mounting groove is provided with an annular groove, the swivel is rotatably connected to the inside of the annular groove, the shaft rod is rotatably connected to the inside of the mounting groove through a bearing, the side wall of the shaft rod is sleeved with a torsion spring, one end of the torsion spring is fixedly connected to the side wall of the shaft rod, and the other end of the torsion spring is fixedly connected to the side wall of the mounting groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the recycled plastic is firstly heated by the hot melt component, and then melted again by the extrusion component and extruded. The hot melt component and the extrusion component adopt an upper and lower layered design, which can reduce the length of the second heating cylinder, thereby saving the space occupied by the device in the horizontal direction; the second screw rod drives the drive shaft to rotate while extruding the plastic, thereby driving the driver to rotate. After the driver rotates, it drives the pelletizing component on the side wall of the driver to rotate, and pelletizes the extruded plastic. The use of power parts can be reduced during production. When in use, it is driven by a power system, which can improve the working efficiency of the power components and save electric energy; during operation, the position of the center gear can be adjusted to produce plastic particles of different specifications, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a front cross-sectional view of the present invention; Figure 4 An exploded view of the pelletizing assembly of the present invention; Figure 5 It is an exploded view of the driver of the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Frame; 11. Bottom frame; 12. Upper frame; 13. Support column; 2. Hot melt assembly; 21. First heating cylinder; 22. Feed hopper; 23. First screw rod; 24. First coupling; 25. First reduction box; 26. First motor; 27. First pulley; 3. Extrusion assembly; 31. Second heating cylinder; 32. Second screw rod; 33. Extrusion die; 34. Second coupling; 35. Second reduction box; 36. Second pulley; 37. Second motor; 4. Connecting cylinder; 5. Pelletizing assembly; 6. Shell cover; 61. Observation slot; 62. Leakage slot; 7. Driver; 71. Center gear; 711. Slot; 712. Center hole; 713. Threaded cylinder; 714. Slide; 72. Internal gear; 73. Transmission gear; 74. Base cylinder; 741. Mounting groove; 742. Annular groove; 75. Disc; 751. Annular groove; 752. Through hole; 76. Connecting rod; 77. Protrusion; 78. Diverter; 781. Ring; 782. Ejector pin; 783. Spring; 8. Pelletizing assembly; 81. Pelletizing knife; 82. Shaft; 83. Swivel; 84. Torsion spring; 9. Drive shaft; 91. Screw; 92. Hexagon socket head; 93. Slide. DETAILED DESCRIPTION

[0018] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0019] like Figure 1 and 4 As shown, a recycled plastic granule manufacturing device includes a frame 1 and a hot melt component 2, the hot melt component 2 is arranged on the top of the frame 1, and an extrusion component 3 is arranged at the bottom of the frame 1. The hot melt component 2 and the extrusion component 3 are connected through a connecting tube 4, and a pelletizing component 5 is arranged at one end of the extrusion component 3. The pelletizing component 5 includes a shell cover 6 fixedly connected to one end of the extrusion component 3, and a driver 7 is arranged inside the shell cover 6. The side wall of the driver 7 is rotatably connected to the pelletizing components 8 equidistantly distributed around the axis of the extrusion component 3, and the end of the extrusion component 3 is fixedly connected to a drive shaft 9 for driving the driver 7 to rotate, and the drive shaft 9 passes through the driver 7.

[0020] According to the above structure, when in use, the crushed recycled plastic is put into the interior of the hot melt component 2, and the recycled plastic is first melted by the preliminary heating of the hot melt component 2. The initially melted plastic is put into the interior of the extrusion component 3 through the connecting tube 4, and then melted again by the extrusion component 3 and extruded. The extrusion component 3 drives the drive shaft 9 to rotate while extruding the plastic, thereby driving the driver 7 to rotate. After the driver 7 rotates, it drives the pelletizing component 8 on the side wall of the driver 7 to rotate to pelletize the extruded plastic. The driver 7 is driven by the extrusion component 3, which can reduce the use of power parts during production. When in use, it is driven by a power system, which can improve the working efficiency of the power components and save electric energy.

[0021] like Figure 2 and 3 As shown, the frame 1 includes an upper frame 12 and a bottom frame 11 correspondingly distributed up and down, and support columns 13 distributed in a rectangular array are fixedly connected between the bottom frame 11 and the upper frame 12. The hot melt component 2 includes a first heating cylinder 21 fixedly installed on the top of the upper frame 12, and the first heating cylinder 21 is internally rotatably connected to a first spiral rod 23. One end of the top of the first heating cylinder 21 is fixedly connected to a feed hopper 22. The top of the upper frame 12 is fixedly connected to a first coupling 24, a first reduction box 25 and a first motor 26. One end of the first spiral rod 23 is fixedly connected to one end of the first reduction box 25 through the first coupling 24. The output shaft of the first motor 26 and the input shaft of the first reduction box 25 are fixedly sleeved with a first pulley 27. Between the two first pulleys 27 Through belt transmission connection, the extrusion assembly 3 includes a second heating cylinder 31 fixedly connected to the top of the bottom frame 11, the second heating cylinder 31 and the first heating cylinder 21 are connected through the connecting cylinder 4, the second heating cylinder 31 is internally rotatably connected with a second screw rod 32, one end of the second heating cylinder 31 is installed with an extrusion mold 33, one end of the second screw rod 32 passes through the middle of the extrusion mold 33, the top of the bottom frame 11 is fixedly connected with a second coupling 34, a second reduction box 35 and a second motor 37, the other end of the second screw rod 32 is fixedly connected to the second reduction box 35 through the second coupling 34, the output shaft of the second motor 37 and the input end of the second reduction box 35 are fixedly sleeved with a second pulley 36, and the two second pulleys 36 are connected through belt transmission.

[0022] According to the above structure, when in use, the crushed recycled plastic is put into the interior of the first heating cylinder 21 through the feed hopper 22, and driven by the first motor 26, the first screw rod 23 rotates to drive the plastic to move forward. After the first heating cylinder 21 works, it heats the plastic to melt it. The plastic that is initially heated and melted by the first heating cylinder 21 enters the end of the second heating cylinder 31 through the connecting cylinder 4. Driven by the second motor 37, the second screw rod 32 rotates to drive the plastic to move forward. When the plastic moves to the extrusion mold 33, the plastic is extruded along the through holes on the surface of the extrusion mold 33. The device adopts an upper and lower layered design, which can reduce the length of the second heating cylinder 31, thereby saving the space occupied by the device in the horizontal direction.

[0023] like Figure 4 As shown, one end of the shell cover 6 is provided with observation grooves 61 equidistantly distributed around the axis of the shell cover 6 , and the bottom of the side wall of the shell cover 6 is provided with a leakage groove 62 .

[0024] According to the above structure, after being pelletized, the extruded plastic falls along the leakage groove 62 into the matching cooling device for cooling.

[0025] like Figure 4 and 5 As shown, the drive shaft 9 is a hollow structure, and the side wall of the drive shaft 9 is provided with equally spaced slide grooves 93, the screw rod 91 is rotatably connected to the inside of the screw rod 91, and one end of the screw rod 91 is fixedly connected to the inner hexagon head 92, the driver 7 includes a central gear 71 and an inner gear 72, the drive shaft 9 passes through the central gear 71, and the middle of the central gear 71 is provided with a central hole 712, and the inside of the central hole 712 is provided with a threaded barrel 713, the threaded barrel 713 is threadedly connected to the screw rod 91, and the side wall of the threaded barrel 713 is fixedly connected with equally spaced slides 714, and a plurality of slides 714 are respectively slidably connected to the inside of a plurality of slide grooves 93, and the central gear 71 is provided with a central hole 712. Symmetrically distributed transmission gears 73 are arranged between the gear 71 and the internal gear 72. The center gear 71 is connected to the internal gear 72 through two transmission gears 73 for transmission. The transmission gear 73 is rotatably connected to one end of the shell cover 6 through a rotating shaft. The middle part of the extrusion mold 33 is rotatably connected to the base cylinder 74. The drive shaft 9 is rotatably connected to the base cylinder 74 through a bearing. A disc 75 is fixedly connected to one end of the base cylinder 74. Equidistantly distributed connecting rods 76 are fixedly connected between the internal gear 72 and the base cylinder 74. Equidistantly distributed protrusions 77 are fixedly connected to one end of the disc 75. A groove 711 matching the protrusion 77 is provided on the surface of the center gear 71.

[0026] According to the above structure, the second screw rod 32 drives the driving shaft 9 to rotate synchronously after rotating. After the driving shaft 9 rotates, the central gear 71 is driven to rotate through the transmission of the slide 714. The transmission central gear 71 through the transmission gear 73 drives the internal gear 72 to rotate. After the transmission of the connecting rod 76, the base cylinder 74 rotates with the internal gear 72. The pelletizing assembly 8 on the base cylinder 74 rotates with the base cylinder 74 to pelletize the extruded plastic strips. At this time, the rotation direction of the internal gear 72 and the base cylinder 74 is opposite to the rotation direction of the driving shaft 9, and the rotation speed is less than the rotation speed of the driving shaft 9. In this state, the size of the pellet is L1. When the size of the pellet needs to be adjusted, the hexagonal head 92 is rotated by the hexagonal screwdriver to drive the screw rod 91 to rotate. After the screw rod 91 rotates, the threaded cylinder is driven 713 moves along the axial direction of the screw rod 91, thereby driving the center gear 71 to move. When the center gear 71 moves to the side close to the disc 75, the protrusion 77 can be inserted into the corresponding slot 711. During the insertion process, the docking can be observed through the observation slot 61. If there is a deviation between the slot 711 and the protrusion 77, the internal gear 72 can be rotated through the leakage slot 62 to change the position of the protrusion 77 so that it can be plugged into the slot 711. When the slot 711 is matched with the protrusion 77, the center gear 71 rotates, directly driving the disc 75 and the base cylinder 74 to rotate. At this time, the rotation speed and rotation direction of the disc 75 and the base cylinder 74 are the same as those of the drive shaft 9. In this state, the pellet size is L2, and L2 is smaller than L1, thereby playing a role in adjusting the pellet size.

[0027] like Figure 4 and 5 As shown, an annular groove 751 is provided at one end of the disk 75, and through holes 752 are evenly distributed at one end of the annular groove 751. A diverter 78 is provided inside the annular groove 751. The diverter 78 includes a ring 781. One end of the ring 781 is fixedly connected to equidistantly distributed ejector pins 782. The ejector pins 782 respectively penetrate the through holes 752. A spring 783 is fixedly connected inside the through hole 752. The spring 783 is sleeved on the side wall of the corresponding ejector pin 782. One end of the spring 783 is fixedly connected to the side wall of the ejector pin 782. The pelletizing assembly 8 includes The pelletizing knife 81 includes a shaft rod 82 and a swivel 83 which are fixedly connected at one end thereof, the shaft rod 82 and the swivel 83 being concentrically arranged, a side wall of the base cylinder 74 being provided with a mounting groove 741 corresponding to the shaft rod 82, an annular groove 742 being arranged on the periphery of the mounting groove 741, the swivel 83 being rotatably connected inside the annular groove 742, the shaft rod 82 being rotatably connected inside the mounting groove 741 through a bearing, a torsion spring 84 being sleeved on the side wall of the shaft rod 82, one end of the torsion spring 84 being fixedly connected to the side wall of the shaft rod 82, and the other end of the torsion spring 84 being fixedly connected to the side wall of the mounting groove 741.

[0028] According to the above structure, after the slot 711 cooperates with the protrusion 77, the central gear 71 directly drives the base cylinder 74 and the disc 75 to rotate. At this time, the rotation direction of the base cylinder 74 and the disc 75 is the same as the rotation direction of the drive shaft 9. At this time, the rotation direction of the pelletizing assembly 8 on the side wall of the base cylinder 74 is opposite to the rotation direction when the central gear 71 drives the internal gear 72 to rotate through the transmission gear 73. If the inclination direction of the pelletizing knife 81 is not changed, the angle between the blade of the pelletizing knife 81 and the plastic strip is too small, which will cause pelletizing failure. When the central gear 71 approaches the disc 75, one side of the central gear 71 The ring 781 is squeezed, so that one end of the ejector pin 782 extends out. As the central gear 71 continues to move, the ejector pin 782 continues to extend to support the other side of the pelletizer 81, thereby driving the pelletizer 81 to rotate around the axis of the shaft 82, so that the other side of the pelletizer 81 contacts one side of the extrusion die 33, so that the pelletizer 81 can pelletize normally. When the central gear 71 moves away from the disk 75, the ring 781 and the ejector pin 782 move away from the pelletizer 81 under the push of the spring 783. As the ejector pin 782 moves away, the pelletizer 81 rotates in the opposite direction and automatically resets under the torsion of the torsion spring 84.

[0029] The working principle of the present invention is as follows: when in use, the crushed recycled plastic is put into the interior of the first heating cylinder 21 through the feed hopper 22, and the first motor 26 drives the first screw rod 23 to rotate and drive the plastic to move forward. After the first heating cylinder 21 works, it heats the plastic to melt it. The plastic that is preliminarily heated and melted by the first heating cylinder 21 enters the end of the second heating cylinder 31 through the connecting cylinder 4. After the second motor 37 drives, the second screw rod 32 rotates and drives the plastic to move forward. When the plastic moves to the extrusion die 33, the plastic is extruded along the through holes on the surface of the extrusion die 33. The device adopts an upper and lower layered design, which can reduce the length of the second heating cylinder 31, thereby saving the space occupied by the device in the horizontal direction. After being pelletized, the extruded plastic falls along the leakage groove 62 into the matching cooling device for cooling. After the second spiral rod 32 rotates, it drives the driving shaft 9 to rotate synchronously. After the driving shaft 9 rotates, it drives the central gear 71 to rotate through the transmission of the slide 714. The transmission central gear 71 of the transmission gear 73 drives the internal gear 72 to rotate. After the transmission of the connecting rod 76, the base cylinder 74 rotates with the internal gear 72. The pelletizing assembly 8 on the base cylinder 74 rotates with the base cylinder 74 to pelletize the extruded plastic strips. At this time, the rotation direction of the internal gear 72 and the base cylinder 74 is opposite to the rotation direction of the driving shaft 9, and the rotation speed is less than the rotation speed of the driving shaft 9. In this state, the size of the pellet is L1. When the size of the pellet needs to be adjusted, the six The angle screwdriver rotates the hexagonal head 92, thereby driving the screw rod 91 to rotate. After the screw rod 91 rotates, the threaded cylinder 713 is driven to move along the axial direction of the screw rod 91, thereby driving the central gear 71 to move. When the central gear 71 moves to the side close to the disk 75, the protrusion 77 can be inserted into the corresponding slot 711. During the insertion process, the docking can be observed through the observation groove 61. If there is a deviation between the slot 711 and the protrusion 77, the internal gear 72 can be rotated through the leakage groove 62 to change the position of the protrusion 77, so that it can be plugged and matched with the slot 711. When the slot 711 cooperates with the protrusion 77, the central gear 71 rotates, directly driving the disk 75 and the base cylinder 74 to rotate. At this time, the rotation speed of the disk 75 and the base cylinder 74 is The degree and rotation direction are the same as those of the driving shaft 9. In this state, the size of the pelletizer is L2, which is smaller than L1, thereby playing a role in adjusting the size of the pelletizer. After the slot 711 cooperates with the protrusion 77, the central gear 71 directly drives the base cylinder 74 and the disc 75 to rotate. At this time, the rotation direction of the base cylinder 74 and the disc 75 is the same as the rotation direction of the driving shaft 9. At this time, the rotation direction of the pelletizer assembly 8 on the side wall of the base cylinder 74 is opposite to the rotation direction when the central gear 71 drives the internal gear 72 to rotate through the transmission gear 73. If the inclination direction of the pelletizer 81 is not changed, the angle between the blade of the pelletizer 81 and the plastic strip is too small, which will cause pelletizing failure. When the central gear 71 approaches the disc 75, one side of the central gear 71 squeezes the ring 781,As a result, one end of the ejector pin 782 extends out and continues to move with the central gear 71, and the ejector pin 782 continues to extend to support the other side of the pelletizer 81, thereby driving the pelletizer 81 to rotate around the axis of the shaft 82, so that the other side of the pelletizer 81 contacts one side of the extrusion die 33, so that the pelletizer 81 can normally cut pellets. When the central gear 71 moves away from the disc 75, the ring 781 and the ejector pin 782 move away from the pelletizer 81 under the push of the spring 783. As the ejector pin 782 moves away, the pelletizer 81 automatically resets due to the torsion of the torsion spring 84.

[0030] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A device for producing recycled plastic particles, comprising a frame (1) and a hot melt assembly (2), characterized in that: The hot melt component (2) is arranged on the top of the frame (1), and an extrusion component (3) is arranged at the bottom of the frame (1); the hot melt component (2) and the extrusion component (3) are connected via a connecting tube (4), and a pelletizing component (5) is arranged at one end of the extrusion component (3); The pelletizing assembly (5) comprises a shell (6) fixedly connected to one end of the extrusion assembly (3), a driver (7) is arranged inside the shell (6), a side wall of the driver (7) is rotatably connected to pelletizing assemblies (8) equidistantly distributed around the axis of the extrusion assembly (3), and a drive shaft (9) for driving the driver (7) to rotate is fixedly connected to the end of the extrusion assembly (3), and the drive shaft (9) passes through the driver (7).

2. A recycled plastic particle manufacturing device according to claim 1, characterized in that: The frame (1) comprises an upper frame (12) and a lower frame (11) which are correspondingly distributed up and down, and support columns (13) distributed in a rectangular array are fixedly connected between the lower frame (11) and the upper frame (12).

3. A recycled plastic particle manufacturing device according to claim 2, characterized in that: The hot melt assembly (2) comprises a first heating cylinder (21) fixedly mounted on the top of the upper frame (12); the first heating cylinder (21) is rotatably connected to a first spiral rod (23); one end of the top of the first heating cylinder (21) is fixedly connected to a feed hopper (22); the top of the upper frame (12) is fixedly connected to a first coupling (24), a first reduction box (25) and a first motor (26); one end of the first spiral rod (23) is fixedly connected to one end of the first reduction box (25) via the first coupling (24); the output shaft of the first motor (26) and the input shaft of the first reduction box (25) are both fixedly sleeved with a first pulley (27); and the two first pulleys (27) are connected via a belt transmission.

4. A device for producing recycled plastic particles according to claim 3, characterized in that: The extrusion assembly (3) comprises a second heating cylinder (31) fixedly connected to the top of the bottom frame (11); the second heating cylinder (31) and the first heating cylinder (21) are connected via a connecting cylinder (4); a second spiral rod (32) is rotatably connected inside the second heating cylinder (31); an extrusion die (33) is installed at one end inside the second heating cylinder (31); one end of the second spiral rod (32) passes through the middle of the extrusion die (33); a second coupling (34), a second reduction box (35) and a second motor (37) are fixedly connected to the top of the bottom frame (11); the other end of the second spiral rod (32) is fixedly connected to the second reduction box (35) via the second coupling (34); the output shaft of the second motor (37) and the input end of the second reduction box (35) are both fixedly sleeved with a second pulley (36); the two second pulleys (36) are connected via a belt drive.

5. The device for producing recycled plastic particles according to claim 1, characterized in that: One end of the shell cover (6) is provided with observation grooves (61) distributed equidistantly around the axis of the shell cover (6), and the bottom of the side wall of the shell cover (6) is provided with a leakage groove (62).

6. A device for producing recycled plastic particles according to claim 5, characterized in that: The drive shaft (9) is a hollow structure, and the side wall of the drive shaft (9) is provided with equally spaced sliding grooves (93). The interior of the screw rod (91) is rotatably connected to the screw rod (91), and one end of the screw rod (91) is fixedly connected to a hexagon socket head (92).

7. A device for producing recycled plastic particles according to claim 6, characterized in that: The driver (7) comprises a central gear (71) and an internal gear (72); the drive shaft (9) passes through the central gear (71); a central hole (712) is provided in the middle of the central gear (71); a threaded barrel (713) is provided inside the central hole (712); the threaded barrel (713) is threadedly connected to the screw rod (91); a side wall of the threaded barrel (713) is fixedly connected to slides (714) distributed at equal intervals; a plurality of the slides (714) are respectively slidably connected inside a plurality of the slide grooves (93); symmetrically distributed transmission gears (73) are provided between the central gear (71) and the internal gear (72); the central gear (71) is meshedly connected to the internal gear (72) through two of the transmission gears (73); and the transmission gear (73) is rotationally connected to one end of the housing (6) through a rotating shaft.

8. A device for producing recycled plastic particles according to claim 7, characterized in that: The middle part of the extrusion die (33) is rotatably connected to a base cylinder (74), the drive shaft (9) is rotatably connected to the base cylinder (74) via a bearing, one end of the base cylinder (74) is fixedly connected to a disc (75), connecting rods (76) distributed at equal intervals are fixedly connected between the internal gear (72) and the base cylinder (74), one end of the disc (75) is fixedly connected to protrusions (77) distributed at equal intervals, and a surface of the central gear (71) is provided with a slot (711) that matches the protrusion (77).

9. A device for producing recycled plastic particles according to claim 8, characterized in that: An annular groove (751) is provided at the edge of one end of the circular disk (755), and through holes (752) distributed at equal intervals are provided at one end of the annular groove (751). A diverter (78) is provided inside the annular groove (751), and the diverter (78) comprises a circular ring (781), and one end of the circular ring (781) is fixedly connected to ejector pins (782) distributed at equal intervals, and a plurality of ejector pins (782) respectively penetrate a plurality of through holes (752), and a spring (783) is fixedly connected inside the through hole (752), and the spring (783) is sleeved on the side wall of the corresponding ejector pin (782), and one end of the spring (783) is fixedly connected to the side wall of the ejector pin (782).

10. The device for producing recycled plastic particles according to claim 9, characterized in that: The pelletizing assembly (8) comprises a pelletizing knife (81), one end of which is fixedly connected to a shaft (82) and a rotating ring (83), the shaft (82) and the rotating ring (83) being arranged concentrically, the side wall of the base cylinder (74) being provided with a mounting groove (741) corresponding to the shaft (82), the periphery of the mounting groove (741) being provided with an annular groove (742), the rotating ring (83) being rotatably connected inside the annular groove (742), the shaft (82) being rotatably connected inside the mounting groove (741) via a bearing, the side wall of the shaft (82) being sleeved with a torsion spring (84), one end of the torsion spring (84) being fixedly connected to the side wall of the shaft (82), and the other end of the torsion spring (84) being fixedly connected to the side wall of the mounting groove (741).

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