CN118893740A - Automatic sorting device for plastic granule processing - Google Patents

Abstract

The invention relates to the technical field of plastic particle pretreatment, in particular to an automatic sorting device for plastic particle processing, which comprises a sorting barrel, wherein the lower end of the outer part of the sorting barrel is fixedly connected with a fan, a separation groove is formed in the outer part of the sorting barrel, a blanking component is arranged above the outer part of the sorting barrel, an upper screen plate and a lower screen plate are arranged in the sorting barrel, a splitting component for taking out the lower screen plate is arranged below the outer part of the sorting barrel, a synchronous kinetic energy component is arranged below the outer part of the upper screen plate, and a shielding component for limiting plastic particles is arranged above the outer part of the upper screen plate.

Description

Automatic sorting device for plastic granule processing

Technical Field

The invention relates to the technical field of plastic particle pretreatment, in particular to an automatic sorting device for plastic particle processing.

Background Art

Plastic particles are usually used in the production and processing of various plastic products. Since the particle size of plastic particles required for the production of different plastic products is different, in order to facilitate the use of manufacturers, screening machines are usually used to grade and screen the plastic particles according to the particle size requirements. At present, the most commonly used screening is to place the screen plate on a vibrating machine and use vibration to screen and sort the plastic particles on the screen plate. When the plastic particles are screened by vibration, the filtered plastic particles fall only by gravity. At the same time, since the plastic particles only fall by gravity, the plastic particles will be stuck in the screen of the screen plate, causing the screen plate to be blocked, thereby affecting the rapid screening and sorting of the plastic particles.

Summary of the invention

In order to overcome the deficiencies of the prior art, the present invention provides an automatic sorting device for processing plastic particles.

In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic sorting device for processing plastic particles, comprising a sorting barrel, a feeding funnel for feeding is fixedly connected to the upper end of the sorting barrel, a supporting base for supporting is fixedly connected to the lower end of the outer part of the sorting barrel, a fan for providing suction is fixedly connected to the lower end of the outer part of the sorting barrel, a separation groove is provided on the outer part of the sorting barrel, the separation groove is communicated with the inner part of the sorting barrel, a storage partition for receiving materials is fixedly connected to the outer part of the sorting barrel, the storage partition is located below the outer part of the separation groove, a connecting hanging plate is fixedly connected to the outer part of the sorting barrel, two ends of the connecting hanging plate are respectively arranged on the upper and lower sides of the outer part of the separation groove, the connecting hanging plate connects the sorting barrels on the upper and lower sides, a discharging assembly for discharging plastic particles is arranged above the outer part of the sorting barrel, an upper screen plate and a lower screen plate for screening plastic particles are arranged inside the sorting barrel, a limiting ring is arranged at the lower end of the lower screen plate, the limiting ring is fixedly connected to the inner part of the sorting barrel and supports the lower screen plate, the sorting barrel A disassembly component for taking out the lower screen plate is arranged below the outside, a synchronous kinetic energy component for assisting in screening plastic particles is arranged below the outside of the upper screen plate, the synchronous kinetic energy component includes a rotating fan blade for providing power, a transmission shaft is fixedly connected inside the rotating fan blade, a side bearing is fixedly connected outside the transmission shaft, the side bearing is fixedly connected to the inner wall of the sorting cylinder, a convex disk is fixedly connected to the side of the transmission shaft away from the side bearing, the convex disk is driven by the transmission shaft to rotate inside the sorting cylinder and contact with the lower surface of the upper screen plate, the synchronous kinetic energy component also includes a sleeve plate, the sleeve plate is fixedly connected to the inner wall of the sorting cylinder, and the sleeve plate is located below the upper screen plate, the interior of the sleeve plate is hollow and located in the middle of the screen of the upper screen plate, air duct slots for placing two rotating fan blades are opened on both sides of the outside of the sleeve plate, the two rotating fan blades rotate inside the two air duct slots respectively, and the two rotating fan blades are located above the fan, and a shielding component for limiting the plastic particles is arranged above the outside of the upper screen plate.

As a preferred technical solution of the present invention, the shielding assembly includes an upper ring groove and an inner ring groove, the upper ring groove is arranged on the upper surface of the upper screen plate, the upper ring groove is movably connected with an inner sealing ring plate inside, the inner ring groove is arranged on the upper and lower sides of the inner wall of the dividing groove, the inner ring groove is movably connected with an outer sealing ring plate inside, the outer sealing ring plate and the inner sealing ring plate are arranged on one side close to the outside of the sorting cylinder in an inclined ring edge shape, two connecting plates for connection are fixedly connected to the side facing each other of the outer sealing ring plate and the inner sealing ring plate, connecting slots are arranged on both sides of the joint between the dividing groove and the upper screen plate, the two connecting plates are respectively slidably connected to the inside of the two connecting slots, each connecting plate is movably connected with a round roller inside, the outer movably sleeved with a sleeve spring, and the two ends of the sleeve spring are respectively fixedly connected to the side facing each other of the connecting plate and the inner wall of the connecting slot.

As a preferred technical solution of the present invention, the unloading component includes a push plate for squeezing and pushing plastic particles out, the outside of the push plate is fixedly connected to a vertical shaft, the vertical shaft is rotatably connected to the inside of the connecting hanging plate, one end of the vertical shaft movably passes through the inside of the connecting hanging plate and extends downward to the outside of the connecting hanging plate, the outside of the connecting hanging plate is fixedly connected to a motor for providing power, the output shaft of the motor is connected to the vertical shaft through a belt, the push plate is driven to rotate outside the connecting hanging plate by the motor and the vertical shaft, the outside of the connecting hanging plate is provided with a push plate for limiting the guide table, the push plate is fixedly connected to the outside of the sorting barrel, and the upper surface of the guide table is in contact with the push plate.

As a preferred technical solution of the present invention, the splitting component includes a sealing door and a sealing slot. The outside of the sealing door is fixedly connected with a handle for easy grasping. The sealing slot is opened on the outside of the sorting cylinder and is connected to the inside of the sorting cylinder. The lower screen plate is arranged at a height within the sealing slot. The outside of the sealing door is provided with a rotating seat and a rotating abutment plate for assisting rotation. The rotating seat is fixedly connected to the lower side of the outside of the sorting cylinder, and the inside of the rotating seat is rotatably connected with a rotating abutment plate. The end of the rotating abutment plate away from the inside of the rotating seat is fixedly connected to the outside of the sealing door. The sealing door rotates inside the sealing slot through the rotating seat and the rotating abutment plate. The outside of the sealing door is provided with a clamping component for fixing. The clamping component includes a sleeve, a slot, a side plate and an insertion roller. The sleeve is fixedly connected to the outside of the sorting cylinder, the insertion roller is movably connected to the inside of the sleeve, the side plate is fixedly connected to the outside of the sealing door, the slot is opened on the side of the side plate close to the sleeve, and the lower end of the insertion roller is movably connected to the inside of the slot and fixes the position of the side plate.

Compared with the prior art, the present invention can achieve the following beneficial effects:

1. By pouring the plastic particles from the feed funnel into the interior of the sorting cylinder, the plastic particles accumulate above the upper screen plate, and the fan is turned on to generate negative pressure suction inside the sorting cylinder. The suction generated by the fan adsorbs the screened plastic particles downward, and the fan provides downward suction for the plastic particles. At the same time, the suction generated by the fan will drive the convex plate in the synchronous kinetic energy component to contact the lower surface of the upper screen plate, driving the upper screen plate to reciprocate up and down in the sorting cylinder, so that the upper screen plate vibrates while the fan provides suction to the plastic particles, so that the plastic particles are in a vibrated state. At the same time, the adsorption force provided by the fan to the plastic particles is increased, and the plastic particles are prevented from being blocked in the upper screen plate, so that the plastic particles can be quickly screened and sorted.

2. By setting the sleeve plate and two air duct slots, when the plastic particles are screened and fall downward from the outside of the upper screen plate, the sleeve plate assists the plastic particles to fall stably into the outside of the lower screen plate. At the same time, when the fan starts to generate suction to the inside of the sorting cylinder, the air duct slots on both sides assist and guide the negative pressure suction generated by the fan to directly contact the rotating blades, so that the suction generated by the fan drives the rotating blades to make the convex plate stably rotate on the outside of the upper screen plate, thereby improving the stable reciprocating squeezing and pushing workmanship of the upper screen plate.

3. After screening the plastic particles on the outside of the upper screen plate, start the motor to drive the vertical axis to rotate and make the push plate rotate synchronously. The push plate rotates outside the guide table with the vertical axis as the axis toward the inside of the separation groove. The push plate rotates and causes the shielding component to shrink inside the separation groove. The push plate pushes the plastic particles on the surface of the upper screen plate and pushes them into the inside of the storage partition for collection, thereby achieving the effect of quickly discharging and collecting the plastic particles.

4. By setting up a split component, the inside of the sorting cylinder is opened by the split component. At this time, the lower screen plate inside the sorting cylinder can be taken out, and the plastic particles placed outside the lower screen plate after sorting can be collected, so as to achieve the rapid sorting and collection of plastic particles.

5. By setting up a shielding component, the shielding component performs a circular block on the upper part of the upper screen plate to prevent the plastic particles from escaping from the center above the upper screen plate when subjected to up and down vibrations, thereby ensuring stable sorting workmanship of the plastic particles.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the present invention;

FIG2 is a schematic diagram of the structure of the connecting hanging plate of the present invention;

FIG3 is a schematic structural diagram of a limit ring of the present invention;

FIG4 is a schematic structural diagram of the lower screen plate of the present invention;

FIG5 is a schematic structural diagram of an upper screen plate of the present invention;

FIG6 is a schematic structural diagram of the inner ring groove of the present invention;

FIG7 is a schematic structural diagram of the inner sealing ring plate of the present invention;

FIG. 8 is a schematic structural diagram of the convex disk of the present invention.

Among them: 10, sorting cylinder; 11, feeding funnel; 12, storage partition; 13, separation slot; 14, connecting hanging plate; 15, upper screen plate; 16, lower screen plate; 17, limit ring; 18, fan; 19, supporting base; 20, push plate; 21, guide plate; 22, vertical shaft; 23, motor; 30, sleeve plate; 31, air duct notch; 32, side bearing; 33, Rotating blades; 34, convex disc; 35, transmission shaft; 40, upper ring groove; 41, connecting notch; 42, outer sealing ring plate; 43, sleeve spring; 44, connecting plate; 45, round roller; 46, inner sealing ring plate; 47, inner ring groove; 50, sealing door; 51, sealing notch; 52, handle; 53, rotating seat; 54, rotating abutment plate; 55, sleeve; 56, slot; 57, side plate; 58, inserting roller.

DETAILED DESCRIPTION

In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

Embodiment: As shown in Figures 1, 2, 5, 6 and 8, an automatic sorting device for processing plastic particles includes a sorting barrel 10, the upper end of the sorting barrel 10 is fixedly connected to a feeding funnel 11 for feeding, the lower end of the outer part of the sorting barrel 10 is fixedly connected to a support base 19 for support, the lower end of the outer part of the sorting barrel 10 is fixedly connected to a fan 18 for providing suction, the outer part of the sorting barrel 10 is provided with a separation groove 13, the separation groove 13 is connected to the inner part of the sorting barrel 10, the outer part of the sorting barrel 10 is fixedly connected to a storage partition 12 for receiving materials, and the storage partition 12 is located in the separation groove 1 3, the outside of the sorting cylinder 10 is fixedly connected with a connecting hanging plate 14, and the two ends of the connecting hanging plate 14 are respectively arranged on the upper and lower sides of the outside of the separation groove 13, and the connecting hanging plate 14 connects the sorting cylinders 10 on the upper and lower sides. A material discharge assembly for discharging plastic particles is arranged above the outside of the sorting cylinder 10, and an upper screen plate 15 and a lower screen plate 16 for screening plastic particles are arranged inside the sorting cylinder 10. A limiting ring 17 is arranged at the lower end of the lower screen plate 16, and the limiting ring 17 is fixedly connected to the inside of the sorting cylinder 10 and supports the lower screen plate 16. The sorting cylinder 10 A disassembly component for taking out the lower screen plate 16 is arranged below the outside, and a synchronous kinetic energy component for assisting the screening of plastic particles is arranged below the outside of the upper screen plate 15. The synchronous kinetic energy component includes a rotating fan blade 33 for providing power, and a transmission shaft 35 is fixedly connected to the inside of the rotating fan blade 33, and a side bearing 32 is fixedly connected to the outside of the transmission shaft 35. The side bearing 32 is fixedly connected to the inner wall of the sorting drum 10, and a convex plate 34 is fixedly connected to the side of the transmission shaft 35 away from the side bearing 32. The convex plate 34 is driven by the transmission shaft 35 to rotate inside the sorting drum 10 and to rotate with the upper screen The lower surface of the mesh plate 15 is in contact, and the synchronous kinetic energy component also includes a sleeve plate 30, which is fixedly connected to the inner wall of the sorting cylinder 10, and the sleeve plate 30 is located below the upper screen plate 15. The interior of the sleeve plate 30 is hollow and is located in the middle of the screen of the upper screen plate 15. Both sides of the outside of the sleeve plate 30 are provided with air duct slots 31 for placing two rotating blades 33. The two rotating blades 33 rotate inside the two air duct slots 31 respectively, and the two rotating blades 33 are located above the fan 18. A shielding component for limiting the plastic particles is provided above the outside of the upper screen plate 15.

Referring to FIGS. 4, 5, 6 and 7, the shielding assembly includes an upper annular groove 40 and an inner annular groove 47. The upper annular groove 40 is provided on the upper surface of the upper screen plate 15. An inner sealing ring plate 46 is movably connected to the inner annular groove 40. The inner annular groove 47 is provided on the upper and lower sides of the inner wall of the separation groove 13. An outer sealing ring plate 42 is movably connected to the inner annular groove 47. The outer sealing ring plate 42 and the inner sealing ring plate 46 are both provided on one side close to the outer side of the separation cylinder 10. The outer sealing ring plate 42 and the inner sealing ring plate 46 are both provided in an inclined ring shape. Two connecting plates 44 for connection are fixedly connected to the opposite side of the sealing ring plate 46, and connecting slots 41 are provided on both sides of the joint between the dividing slot 13 and the upper screen plate 15. The two connecting plates 44 are respectively slidably connected to the inside of the two connecting slots 41, and a round roller 45 is movably connected to the inside of each connecting plate 44. A sleeve spring 43 is movably sleeved on the outside of the round roller 45, and the two ends of the sleeve spring 43 are respectively fixedly connected to the side of the connecting plate 44 facing the inner wall of the connecting slot 41.

Referring to Figures 1 and 2, the unloading assembly includes a push plate 20 for squeezing and discharging plastic particles. The outside of the push plate 20 is fixedly connected to a vertical shaft 22, which is rotatably connected to the inside of the connecting hanging plate 14. One end of the vertical shaft 22 movably passes through the inside of the connecting hanging plate 14 and extends downward to the outside of the connecting hanging plate 14. The outside of the connecting hanging plate 14 is fixedly connected to a motor 23 for providing power. The output shaft of the motor 23 is transmission-connected to the vertical shaft 22 through a belt. The push plate 20 is driven to rotate outside the connecting hanging plate 14 by the motor 23 and the vertical shaft 22. The outside of the connecting hanging plate 14 is provided with a push plate 20 for limiting the guide plate 21. The push plate 20 is fixedly connected to the outside of the sorting barrel 10, and the upper surface of the guide plate 21 is in contact with the push plate 20.

Referring to FIG. 3 , the disassembly assembly includes a sealing door 50 and a sealing notch 51. The outside of the sealing door 50 is fixedly connected with a handle 52 for easy grasping. The sealing notch 51 is opened on the outside of the sorting cylinder 10 and communicates with the inside of the sorting cylinder 10. The lower screen plate 16 is arranged at a height within the sealing notch 51. The outside of the sealing door 50 is provided with a rotating seat 53 and a rotating abutment plate 54 for auxiliary rotation. The rotating seat 53 is fixedly connected to the lower side of the outside of the sorting cylinder 10. The inside of the rotating seat 53 is rotatably connected with the rotating abutment plate 54. The end of the rotating abutment plate 54 away from the inside of the rotating seat 53 is fixedly connected to the On the outside of the sealing door 50, the sealing door 50 rotates inside the sealing groove 51 through the rotating seat 53 and the rotating abutment plate 54. A clamping assembly for fixing is arranged on the outside of the sealing door 50. The clamping assembly includes a sleeve 55, a slot 56, a side plate 57 and an insertion roller 58. The sleeve 55 is fixedly connected to the outside of the sorting drum 10, the insertion roller 58 is movably connected to the inside of the sleeve 55, the side plate 57 is fixedly connected to the outside of the sealing door 50, the slot 56 is opened on the side of the side plate 57 close to the sleeve 55, and the lower end of the insertion roller 58 is movably connected to the inside of the slot 56 and fixes the position of the side plate 57.

Working principle:

When in use: the first step is to pour the plastic particles from the feed hopper 11 into the interior of the sorting drum 10, and the plastic particles are accumulated above the upper screen plate 15, and the fan 18 is turned on to generate negative pressure suction inside the sorting drum 10, and the suction generated by the fan 18 adsorbs the screened plastic particles downward, and the fan 18 provides downward suction for the plastic particles. At the same time, the suction generated by the fan 18 drives the rotating blades 33 to rotate outside the transmission shaft 35, and the rotation of the rotating blades 33 drives the transmission shaft 35 and causes the cam 34 to rotate, and the cam 34 continues to rotate and contacts with the lower surface of the upper screen plate 15, driving the upper screen plate 15 to reciprocate up and down inside the sorting drum 10, so that the upper screen plate 15 vibrates while the fan 18 provides suction to the plastic particles, so that the plastic particles are in a vibrated state and cooperate with the adsorption force provided by the fan 18 to the plastic particles.

By providing the sleeve plate 30 and the two air duct slots 31, when the plastic particles are screened and fall downward from the outside of the upper sieve plate 15, the sleeve plate 30 assists the plastic particles to stably fall into the outside of the lower sieve plate 16. At the same time, when the fan 18 starts to generate suction to the inside of the sorting drum 10, the air duct slots 31 on both sides assist and guide the negative pressure suction generated by the fan 18 to directly contact the rotating blades 33, so that the suction generated by the fan 18 drives the rotating blades 33 to make the convex plate 34 stably rotate on the outside of the upper sieve plate 15.

In the second step, after screening the plastic particles on the outside of the upper screen plate 15, the motor 23 is started to drive the vertical shaft 22 to rotate and the push plate 20 to rotate synchronously. The push plate 20 rotates outside the guide plate 21 with the vertical shaft 22 as the axis toward the inside of the partition groove 13. The push plate 20 rotates and contacts the inclined ring edge on the outside of the outer sealing ring plate 42 and squeezes and contracts the outer sealing ring plate 42 inside the inner ring groove 47. When the outer sealing ring plate 42 contracts, it drives the inner sealing ring plate 46 to contract inside the upper ring groove 40. At the same time, the push plate 20 squeezes the plastic particles on the surface of the upper screen plate 15 and pushes them into the inside of the storage partition 12 for collection.

The third step is to lift the insertion roller 58 upward outside the sleeve 55 and separate it from the inside of the slot 56. At this time, hold the sealing slot 51 to drive the sealing door 50 to rotate outward inside the sleeve 55 with the rotating abutment plate 54 as the center. The sealing door 50 rotates to open the inside of the sealing slot 51. At this time, the lower screen plate 16 located inside the sorting cylinder 10 can be taken out, and the plastic particles placed outside the lower screen plate 16 after sorting can be collected.

The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims (8)

1. An automatic sorting device for processing plastic particles, comprising a sorting barrel (10), the upper end of the sorting barrel (10) is fixedly connected to a feeding funnel (11) for feeding, the lower end of the outside of the sorting barrel (10) is fixedly connected to a support base (19) for supporting, and the lower end of the outside of the sorting barrel (10) is fixedly connected to a fan (18) for providing suction, characterized in that a separation groove (13) is opened on the outside of the sorting barrel (10), the separation groove (13) is communicated with the inside of the sorting barrel (10), and a storage partition (12) for receiving materials is fixedly connected to the outside of the sorting barrel (10), and the storage partition (12) Located below the outside of the separation groove (13), the outside of the sorting cylinder (10) is fixedly connected to a connecting hanging plate (14), the outside of the sorting cylinder (10) is provided with a discharge assembly for discharging plastic particles above the outside of the sorting cylinder (10), the inside of the sorting cylinder (10) is provided with an upper screen plate (15) and a lower screen plate (16) for screening the plastic particles, a limit ring (17) is provided at the lower end of the lower screen plate (16), the limit ring (17) is fixedly connected to the inside of the sorting cylinder (10) and supports the lower screen plate (16), and a splitting assembly for taking out the lower screen plate (16) is provided below the outside of the sorting cylinder (10); A synchronous kinetic energy component is arranged below the outer portion of the upper screen plate (15) to assist in screening the plastic particles. The synchronous kinetic energy component comprises: A rotating blade (33) for providing power, wherein the interior of the rotating blade (33) is fixedly connected to a transmission shaft (35), the exterior of the transmission shaft (35) is fixedly connected to a side bearing (32), the side bearing (32) is fixedly connected to the inner wall of the sorting drum (10), and a convex plate (34) is fixedly connected to the exterior of the transmission shaft (35) away from the side bearing (32), the convex plate (34) is driven by the transmission shaft (35) to rotate inside the sorting drum (10) and to contact the lower surface of the upper screen plate (15); A shielding component for limiting the position of plastic particles is provided above the exterior of the upper screen plate (15). 2. An automatic sorting device for processing plastic particles according to claim 1, characterized in that the synchronous kinetic energy component also includes a sleeve plate (30), the sleeve plate (30) is fixedly connected to the inner wall of the sorting cylinder (10), and the sleeve plate (30) is located below the upper screen plate (15), and both sides of the outside of the sleeve plate (30) are provided with air duct slots (31) for placing two rotating fan blades (33). 3. An automatic sorting device for processing plastic particles according to claim 1, characterized in that the shielding component includes an upper ring groove (40) and an inner ring groove (47), the upper ring groove (40) is arranged on the upper surface of the upper screen plate (15), the interior of the upper ring groove (40) is movably connected to an inner sealing ring plate (46), the inner ring groove (47) is arranged on the upper and lower sides of the inner wall of the separation groove (13), the interior of the inner ring groove (47) is movably connected to an outer sealing ring plate (42), and the outer sealing ring plate (42) and the inner sealing ring plate (46) are both arranged to be inclined ring edges on one side close to the outside of the sorting cylinder (10). 4. An automatic sorting device for processing plastic particles according to claim 3, characterized in that two connecting plates (44) for connection are fixedly connected to the side facing the outer sealing ring plate (42) and the inner sealing ring plate (46), and connecting slots (41) are provided on both sides of the joint between the partition groove (13) and the upper screen plate (15), and the two connecting plates (44) are respectively slidably connected to the inside of the two connecting slots (41), and each connecting plate (44) is movably connected to a round roller (45) inside, and the outside of the round roller (45) is movably sleeved with a sleeve spring (43), and the two ends of the sleeve spring (43) are respectively fixedly connected to the side of the connecting plate (44) facing the inner wall of the connecting slot (41). 5. An automatic sorting device for processing plastic particles according to claim 1, characterized in that the unloading component includes a push plate (20) for squeezing and pushing the plastic particles out, the push plate (20) is fixedly connected to the outside with a vertical shaft (22), the vertical shaft (22) is rotatably connected to the inside of the connecting hanging plate (14), one end of the vertical shaft (22) movably passes through the inside of the connecting hanging plate (14) and extends downward to the outside of the connecting hanging plate (14), the outside of the connecting hanging plate (14) is fixedly connected to a motor (23) for providing power, the output shaft of the motor (23) is transmission-connected to the vertical shaft (22) by a belt, and the push plate (20) is driven to rotate outside the connecting hanging plate (14) by the motor (23) and the vertical shaft (22). 6. An automatic sorting device for processing plastic particles according to claim 5, characterized in that a push plate (20) for limiting the position of the guide plate (21) is arranged outside the connecting hanging plate (14), and the push plate (20) is fixedly connected to the outside of the sorting cylinder (10), and the upper surface of the guide plate (21) is in contact with the push plate (20). 7. An automatic sorting device for processing plastic particles according to claim 1, characterized in that the splitting component includes a sealing door (50) and a sealing slot (51), the outside of the sealing door (50) is fixedly connected with a handle (52) for easy grasping, the sealing slot (51) is opened on the outside of the sorting cylinder (10) and is connected to the inside of the sorting cylinder (10), and the outside of the sealing door (50) is provided with a rotating seat (53) and a rotating stop plate (54) for auxiliary rotation, the rotating seat (53) is fixedly connected to the lower side of the outside of the sorting cylinder (10), and the inside of the rotating seat (53) is rotatably connected with a rotating stop plate (54), and one end of the rotating stop plate (54) away from the inside of the rotating seat (53) is fixedly connected to the outside of the sealing door (50), and the sealing door (50) rotates inside the sealing slot (51) through the rotating seat (53) and the rotating stop plate (54). 8. An automatic sorting device for processing plastic particles according to claim 7, characterized in that a clamping assembly for fixing is arranged on the outside of the sealing door (50), and the clamping assembly includes a sleeve (55), a slot (56), a side plate (57) and an inserting roller (58), the sleeve (55) is fixedly connected to the outside of the sorting cylinder (10), the inserting roller (58) is movably connected to the inside of the sleeve (55), the side plate (57) is fixedly connected to the outside of the sealing door (50), the slot (56) is opened on the side of the side plate (57) close to the sleeve (55), and the lower end of the inserting roller (58) is movably connected to the inside of the slot (56) and fixes the position of the side plate (57).