A plastic particle preparation and sorting device

Abstract

The present application relates to the technical field of plastic particle processing, and specifically to a plastic particle preparation and sorting device, including a base, a material trough is provided on the top surface of the base, a conveying mechanism is provided at the front of the material trough, the conveying mechanism transports the plastic particles to the upper rear side, and the conveying mechanism includes a cylinder, a plurality of first discharge ports are provided on the cylinder, a filter plate is fixed in the first discharge port, and the aperture sizes of the plurality of filter plates increase from front to back in sequence, and a re-screening mechanism is provided at the position of the cylinder outside relative to the first discharge port, and the re-screening mechanism is used to verify the particle size of the plastic particles. The present application is provided with an inclined conveying mechanism and a plurality of filter plates with different apertures, and the plastic particles can be sorted more finely by conveying the plastic particles with the filter plates with different apertures in cooperation with the conveying mechanism, and at the same time, the conveying mechanism is a structure with a low front and a high back, so that the plastic particles will not easily miss the corresponding filter plates due to the influence of gravity, thereby enhancing the screening accuracy of the plastic particles.

Description

Technical Field

[0001] The present application relates to the technical field of plastic particle processing, and in particular to a plastic particle preparation and sorting device. Background Art

[0002] During the production process of plastic particles, workers will choose the purpose of the plastic particles based on the particle size of the output.

[0003] After searching, the patent with publication number CN109397573A discloses a plastic particle screening device. When the device is screening plastic, the plastic blocked in the filter hole is shaken off by the shaking effect produced by the filter layer when screening the plastic through the shaking device; the filter layer can be easily removed from the box body through the detachable connection of the filter layer; when the filter layer is damaged or seriously blocked, the filter layer can be easily removed to replace and clear the filter.

[0004] The existing device can only screen out plastic particles below the specified particle size during use. As a result, the particle sizes of the screened plastic particles are uneven and the subdivision effect cannot be achieved. Although the blockage of the filter holes can be avoided by shaking, it will still greatly affect the screening efficiency when screening a large number of plastic particles. Summary of the invention

[0005] Technical issues solved

[0006] In view of the above-mentioned shortcomings of the prior art, the present application provides a plastic particle preparation and sorting device, which can effectively solve the problems in the prior art.

[0007] Technical Solution

[0008] To achieve the above objectives, this application is implemented through the following technical solutions:

[0009] The present application provides a plastic particle preparation and sorting device, comprising a base, wherein a material trough is provided on the top surface of the base, and the characteristics are: a conveying mechanism is provided on one side of the material trough, and the conveying mechanism transports the plastic particles upward;

[0010] The conveying mechanism includes a cylinder with multiple first discharge ports formed on the cylinder. A filter plate is fixed in the first discharge port, and the apertures of the multiple filter plates increase sequentially from bottom to top. A re-screening mechanism is provided on the outside of the cylinder relative to the first discharge ports, and the re-screening mechanism is used to re-screen the plastic particles filtered through the filter plate.

[0011] Preferably, the re-screening mechanism includes a rotating ring, which is symmetrically rotatably connected to two fixed plates on both sides, and the cylinder passes through the upper parts of the two fixed plates in sequence and is connected and fixed to both of them. A plurality of leakage holes are evenly opened on the rotating ring, and the leakage holes are truncated cone-shaped structures with larger inside and smaller outside. The diameter of the inner opening end of the leakage hole is equal to the size of the hole in the filter plate adjacent to it.

[0012] Preferably, a screening box is provided on one side of the interior of the rotating ring, one side wall of the screening box is an open structure and is in sliding contact with the inner wall of the rotating ring, the front wall of the screening box is connected and fixed to the inner wall of the fixed plate adjacent to its front side, the rear end of the screening box is a closed structure, the bottom surface of the inner side of the screening box is an inclined structure with low front and high rear, a cleaning port is provided at the lower part of the fixed plate behind the screening box, a rotating plate is hinged on the top surface of the cleaning port, a plurality of circular holes are evenly provided on the side wall of the rotating plate, a card block is elastically connected to the inside of the circular hole through a reset spring, and a card groove which is engaged with the card block is provided on the inner wall of the cleaning port.

[0013] Preferably, a through hole is provided at the opening end of the side wall of the screening box relative to the leakage hole, the longitudinal length of the through hole is equal to the diameter of the corresponding leakage hole, the lateral length of the through hole is equal to the radius of the corresponding leakage hole, a connecting groove is provided on a fixed plate connected and fixed to the screening box relative to the front opening end of the screening box, a supporting plate is fixed to the front wall of the fixed plate connected and fixed to the screening box, the supporting plate is a U-shaped structure, a collecting box is connected to the end of the supporting plate away from the cylinder, a partition is fixed between the top surface of the supporting plate and the top surface of the collecting box, the partition is an L-shaped structure, and the top surface of the partition is higher than the top surface of the connecting groove.

[0014] Preferably, a guide plate is provided between the lower sides of the plurality of rotating rings, the guide plate is arranged in an inclined shape with the front lower and the rear higher, the middle part of the guide plate has an obtuse angle bend, the guide plate is a U-shaped structure, the guide plate and the collection box are connected and fixed to the top surface of the base through a plurality of vertical rods, the lower part of the cylinder passes through the front end of the guide plate and extends to the upper side, the front opening end of the guide plate is hinged with a movable door through a hinge shaft, and two torsion springs are symmetrically sleeved on the hinge shaft.

[0015] Preferably, the rear end of the inner wall of the rotating ring is provided with a plurality of tooth columns in an annular equidistant structure, the top surface of the cylinder is provided with a through groove relative to the position of the tooth column, the inner wall of the cylinder is provided with an annular groove relative to the position of the through groove, the tooth column extends through the through groove to the upper part of the annular groove, a rack is slidably arranged inside the annular groove and meshed with the tooth column, and the rack is an arc-shaped structure.

[0016] Preferably, the rear wall of the annular groove is provided with a plurality of plate grooves at equal intervals in a ring shape, a baffle is elastically connected to the inside of the plate groove via a compression spring, a slot is provided on the front wall of the annular groove for plugging into and mating with the front end of the baffle, the front end of the baffle is a right-angled triangular prism structure with an inclined surface facing inward, an extrusion groove is provided on the outer wall on one side of the baffle, and the end of the rack is extruded and mated with the extrusion groove.

[0017] Preferably, the material trough is an L-shaped structure, the bottom surface of the material trough is a sloped structure, the cylinder is arranged in an inclined structure with a lower front and a higher rear, and the conveying mechanism also includes a rotating shaft coaxially connected to the inside of the cylinder, the lower end of the rotating shaft is rotatably connected to the bottom surface of the material trough, and the upper end of the rotating shaft passes through the inner top surface of the cylinder and extends to the outside and is coaxially fixedly connected to a motor.

[0018] Preferably, an auger blade is sleeved on the outer wall of the rotating shaft, and the outer wall of the auger blade is in sliding contact with the inner wall of the cylinder. A second discharge port is provided on the bottom surface of the cylinder relative to the rear side of the auger blade, and the second discharge port corresponds to the upper opening end of the guide plate. The top surface of the rack is connected and fixed to the side wall of the auger blade, and an inlet is provided at the lower end of the front wall of the cylinder.

[0019] Beneficial Effects

[0020] Compared with the known public technologies, the technical solution provided by this application has the following beneficial effects:

[0021] 1. The present application is provided with an inclined conveying mechanism and a plurality of filter plates with different apertures. By conveying the plastic particles by the filter plates with different apertures in cooperation with the conveying mechanism, the plastic particles can be sorted more finely. At the same time, the conveying mechanism is a structure with a low front and a high back, so that the plastic particles will not easily miss the corresponding filter plate due to the influence of gravity, thereby enhancing the screening accuracy of the plastic particles.

[0022] 2. The present application is provided with a re-screening mechanism, which can further identify the screened plastic particles after the first screening. In addition to improving the screening accuracy, such a design can also screen out plastic particles whose sizes are much smaller than the required particle size, and can also exclude a very small amount of plastic particles that have missed the filter plate due to squeezing by other plastic particles, so that the screening accuracy of the device is further improved.

[0023] 3. The present application is provided with a guide plate and a movable door. The screened plastic particles will be concentrated on the guide plate and eventually moved to the movable door. Finally, when the screened plastic particles are concentrated to a certain amount, they will be uniformly discharged into the material trough for re-screening. In this way, the screening accuracy of the present device can be improved again, ensuring that there will be no problem of missed screening and reducing the waste of plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of the plastic particle preparation and sorting device disclosed in the embodiment of the present application;

[0026] Figure 2 It is a schematic diagram of the side cross-section structure of the plastic particle preparation and sorting device disclosed in the embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the internal structure of the cylinder of the plastic particle preparation and sorting device disclosed in the embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the internal structure of the annular groove of the plastic particle preparation and sorting device disclosed in the embodiment of the present application;

[0029] Figure 5 This is a schematic diagram of the fixed plate and rotating ring structure of the plastic particle preparation and sorting device disclosed in the embodiment of the present application;

[0030] Figure 6 For this application Figure 5 The enlarged structural diagram at A in the middle;

[0031] Figure 7 This is a schematic diagram of the structure of a screening box of a plastic particle preparation and sorting device disclosed in an embodiment of the present application;

[0032] Figure 8 Schematic diagram of the support plate and collection box structure of the plastic particle preparation and sorting device disclosed in the embodiment of the present application

[0033] Fig. 9 This is a schematic diagram of the front end structure of the guide plate of the plastic particle preparation and sorting device disclosed in the embodiment of the present application;

[0034] Fig.10 This is a schematic diagram of the cylinder structure of the plastic particle preparation and sorting device disclosed in the embodiment of the present application;

[0035] Fig.11 This is a schematic diagram of the baffle structure of the plastic particle preparation and sorting device disclosed in the embodiment of the present application;

[0036] The numbers in the figure represent: 1, base; 2, material trough; 3, conveying mechanism; 4, cylinder; 5, first discharge port; 6, filter plate; 7, re-screening mechanism; 8, rotating ring; 9, fixed plate; 10, leakage hole; 11, screening box; 12, through-hole; 13, connecting groove; 14, supporting plate; 15, collecting box; 16, guide plate; 17, vertical rod; 18, movable door; 19, tooth column; 20, through-groove; 21, Annular groove; 22, rack; 23, plate groove; 24, compression spring; 25, baffle; 26, slot; 27, extrusion groove; 28, rotating shaft; 29, motor; 30, auger blade; 31, second discharge port; 32, feed port; 33, hinge shaft; 34, torsion spring; 35, cleaning port; 36, rotating plate; 37, round hole; 38, block; 39, slot; 40, partition; 41, reset spring. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] A plastic particle preparation and sorting device, such as Figure 1 As shown, it includes a base 1, a material trough 2 is provided on the top surface of the base 1, a conveying mechanism 3 is provided at the front of the material trough 2, and the conveying mechanism 3 transports the plastic particles to the upper rear side. The material trough 2 is an L-shaped structure, the bottom surface of the material trough 2 is an inclined structure, and the cylinder 4 is arranged in an inclined structure with a low front and a high rear. Figure 2 and Figure 3 As shown, the conveying mechanism 3 also includes a rotating shaft 28 coaxially rotatably connected inside the cylinder 4, the lower end of the rotating shaft 28 is rotatably connected to the bottom surface of the material trough 2, the upper end of the rotating shaft 28 passes through the inner top surface of the cylinder 4 and extends to the outside and is coaxially fixedly connected to the motor 29, the outer wall of the rotating shaft 28 is sleeved with an auger blade 30, the outer wall of the auger blade 30 is in sliding contact with the inner wall of the cylinder 4, the bottom surface of the cylinder 4 relative to the rear side of the auger blade 30 is provided with a second discharge port 31, the second discharge port 31 corresponds to the upper opening end of the guide plate 16, and the lower end of the front wall of the cylinder 4 is provided with a feed port 32;

[0039] Further, such as Figure 3 and Figure 4 As shown, the conveying mechanism 3 includes a cylinder 4, and a plurality of first discharge ports 5 are provided on the cylinder 4. A filter plate 6 is fixed in the first discharge port 5. The apertures of the plurality of filter plates 6 increase from front to back. A re-screening mechanism 7 is provided outside the cylinder 4 at a position relative to the first discharge port 5. The re-screening mechanism 7 is used to re-check the particle size of the plastic particles. Figure 5As shown, the re-screening mechanism 7 includes a rotating ring 8, and two fixed plates 9 are connected to the rotating ring 8 on both sides for symmetrical rotation. The cylinder 4 passes through the upper parts of the two fixed plates 9 in sequence and is connected and fixed to both of them. A plurality of leakage holes 10 are evenly opened on the rotating ring 8. The leakage holes 10 are truncated cone-shaped structures with larger inside and smaller outside. The diameter of the inner opening end of the leakage hole 10 is equal to the size of the hole of the filter plate 6 adjacent to it.

[0040] Furthermore, if Figure 5 and Figure 6 As shown, a screening box 11 is provided on one side of the interior of the swivel 8, and one side wall of the screening box 11 is an open structure and is in sliding contact with the inner wall of the swivel 8, the front wall of the screening box 11 is connected and fixed to the inner wall of the fixed plate 9 adjacent to its front side, and the rear end of the screening box 11 is a closed structure, and the inner bottom surface of the screening box 11 is an inclined structure with a low front and a high back, and a cleaning port 35 is provided at the lower part of the fixed plate 9 located behind the screening box 11, and a rotating plate 36 is hinged on the top surface of the cleaning port 35, and a plurality of circular holes 37 are evenly provided on the side wall of the rotating plate 36, and a card block 38 is elastically connected to the inside of the circular hole 37 through a reset spring 41, and a card groove 39 that is engaged with the card block 38 is provided on the inner wall of the cleaning port 35.

[0041] Furthermore, Figure 5 and Figure 7 As shown, a through hole 12 is provided at the position of the opening end of the side wall of the screening box 11 relative to the leakage hole 10, the longitudinal length of the through hole 12 is equal to the diameter of the corresponding leakage hole 10, and the transverse length of the through hole 12 is equal to the radius of the corresponding leakage hole 10. A connecting groove 13 is provided on the fixing plate 9 connected and fixed to the screening box 11 relative to the front opening end of the screening box 11, and a supporting plate 14 is fixed to the front wall of the fixing plate 9 connected and fixed to the screening box 11. Figure 8 As shown, the support plate 14 is a U-shaped structure, and the end of the support plate 14 away from the cylinder 4 is connected to the collection box 15. A partition 40 is fixed between the top surface of the support plate 14 and the top surface of the collection box 15. The partition 40 is an L-shaped structure, and the top surface position of the partition 40 is higher than the top surface position of the connecting groove 13.

[0042] It is worth mentioning that Figure 2 and Fig. 9 As shown, a guide plate 16 is provided between the lower sides of the plurality of rotating rings 8. The guide plate 16 is arranged in an inclined shape with the front lower and the rear higher. The middle part of the guide plate 16 has an obtuse angle bend. The guide plate 16 is a U-shaped structure. The guide plate 16 and the collecting box 15 are both connected and fixed to the top surface of the base 1 through a plurality of vertical rods 17. The lower part of the cylinder 4 passes through the front end of the guide plate 16 and extends upward. The front open end of the guide plate 16 is hinged with a movable door 18 through a hinge shaft 33. Two torsion springs 34 are symmetrically sleeved on the hinge shaft 33.

[0043] It is worth noting that Fig.10As shown, the rear end of the inner wall of the swivel 8 is in a ring-shaped structure with equal spacing and is fixed with a plurality of tooth columns 19. A through groove 20 is provided on the top surface of the cylinder 4 relative to the position of the tooth column 19. An annular groove 21 is provided on the inner wall of the cylinder 4 relative to the position of the through groove 20. The tooth column 19 passes through the through groove 20 and extends to the upper part of the annular groove 21. A rack 22 meshingly connected with the tooth column 19 is slidably provided inside the annular groove 21. The rack 22 is an arc-shaped structure, and the top surface of the rack 22 is connected and fixed to the side wall of the auger blade 30.

[0044] It is worth mentioning that Figure 4 and Fig.11 As shown, the rear wall of the annular groove 21 is provided with a plurality of plate grooves 23 at equal intervals in a ring shape, and a baffle 25 is elastically connected to the inside of the plate groove 23 through a compression spring 24. A slot 26 is provided on the front wall of the annular groove 21 to be plugged into the front end of the baffle 25. The front end of the baffle 25 is a right-angled triangular prism structure with an inclined surface facing inward, and an extrusion groove 27 is provided on the outer wall on one side of the baffle 25, and the end of the rack 22 is extruded and matched with the extrusion groove 27.

[0045] In summary, during the use of the plastic particle preparation and sorting device recorded in the embodiment of the present application, the staff can fix the device next to the plastic particle preparation machine, and then use the external conveying equipment to transport the prepared plastic particles to the material trough 2, and then these plastic particles will move along the material trough 2 to the lower opening end of the cylinder 4 under the guidance of the inclined surface of the bottom surface of the material trough 2, and then the rotating shaft 28 and the auger blade 30 in the conveying mechanism 3 will form a structure similar to a screw conveyor under the drive of the motor 29 to transport the plastic particles backward and upward along the inside of the cylinder 4. During the transportation, the plastic particles will pass through multiple first discharge ports 5 in sequence. Under the action of multiple filter plates 6, the particle sizes of the plastic particles are gradually screened from small to large into the corresponding re-screening mechanism 7, and finally some plastic particles in the conveying mechanism 3 whose particle sizes are much larger than the required particle sizes will be discharged from the cylinder 4 from the second discharge port 31;

[0046] The plastic particles entering each re-screening mechanism 7 will be driven to rotate by the rotation of the rotating ring 8. The leakage holes 10 provided on the rotating ring 8 are of the same size as the holes on the corresponding filter plate 6, so the plastic particles smaller than the leakage holes 10 that fall into the re-screening mechanism 7 will pass through the leakage holes 10 and fall out of the re-screening mechanism 7, so that the plastic particles with a particle size much smaller than the required size can be discharged from the device, and some small-size plastic particles that miss the front re-screening mechanism 7 can also be discharged. These discharged plastic particles will be uniformly concentrated on the guide plate 16 and moved to the movable door 18 under the guidance of the guide plate 16. After these plastic particles are concentrated to a certain amount, they will push the movable door 18 open under the pressure of their overall weight and slide along the surface of the movable door 18 to the front part of the material trough 2. This design is to avoid the movable door 18 from being constantly open and causing obstruction to the feeding of the cylinder 4, and can also save some space, so that the guide plate 16 does not need to be set too long to be able to introduce the plastic particles into the material trough 2, and then these plastic particles will be re-screened, avoiding the problem of insufficient screening and reducing waste;

[0047] Among them, the rotation of the swivel 8 is the effect of the rack 22 driving the tooth column 19. The rack 22 will intermittently correspond to the through groove 20 during the rotation along the annular groove 21, so that it can produce a driving effect on the tooth column 19 and finally make the swivel 8 continue to rotate. In the rotation of the swivel 8, except for the unqualified plastic particles that will fall out of the re-screening mechanism 7, the remaining plastic particles will be just embedded in the inner side end of the leakage hole 10. Because the leakage hole 10 is a truncated cone structure with a large inside and a small outside, the plastic particles that meet the size will not fall out of the leakage hole 10 but will be embedded in the leakage hole 10 and driven to rotate, and then they will be transferred from the position of the through opening 12 into the screening box 11. The size of the through opening 12 of the screening box 11 is also set to only allow the corresponding particle size to pass through, so particles larger than The plastic particles of the particle size will be blocked by the screening box 11 and squeezed out of the leakage hole 10 and retained in the rotating ring 8, so that the effect of further screening can be achieved. When the plastic particles rotate to the upper side of the screening box 11 with the rotating ring 8, they will fall out of the leakage hole 10 under the action of gravity and then fall into the screening box 11. Under the guidance of the inclined surface of the bottom surface of the screening box 11, these plastic particles that meet the particle size requirements will enter the support plate 14 from the connecting groove 13 and finally slide into the collecting box 15. The ends of the support plate 14 and the collecting box 15 close to the cylinder 4 are higher than the ends of the two far from the cylinder 4. At the same time, there is a barrier 40 to prevent the plastic particles from falling out of the collecting box 15. So far, the screening and collection of plastic particles of the specified particle size are completed.

[0048] Furthermore, a small amount of relatively large-sized plastic particles will remain in the rescreening mechanism 7, and the staff can clean these residues by opening the rotating plate 36. The rotating plate 36 is provided with a card block 38 that engages with the card slot 39. Such a structure can prevent the rotating plate 36 from being pushed open when a large number of plastic particles are rescreened;

[0049] In addition, a plurality of baffles 25 are arranged inside the annular groove 21 of the device. The extrusion groove 27 provided on the baffle 25 can make the baffle 25 be squeezed open by the rack 22 and retracted into the plate groove 23. After the rack 22 is turned away, it will pop out from the plate groove 23 and push the plastic particles stuck in the annular groove 21 out of the annular groove 21 through the triangular prism structure at its front end. Because the rack 22 is connected and fixed to the auger blade 30, when the rack 22 is rotated to the other side, the open end of the annular groove 21 corresponding to the baffle 25 that pops out of the plate groove 23 is not blocked by the auger blade 30, so the plastic particles will easily fall into the annular groove 21. This problem is avoided under such a design, and the design of the annular groove 21 is to allow the rack 22 to have space for movement, so that the rack 22 will not cause a gap between the auger blade 30 and the cylinder 4 to prevent the plastic particles from falling back.

[0050] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A plastic particle preparation and sorting device, comprising a base, wherein a material trough is provided on the top surface of the base, and wherein: A conveying mechanism is provided on one side of the trough, and the conveying mechanism transports the plastic particles upward; The conveying mechanism comprises a cylinder, a plurality of first discharge ports are provided on the cylinder, a filter plate is fixed in the first discharge port, the apertures of the plurality of filter plates increase from bottom to top, and a re-screening mechanism is provided on the outside of the cylinder at a position relative to the first discharge port, and the re-screening mechanism is used to re-screen the plastic particles filtered by the filter plate; The re-screening mechanism comprises a rotating ring, two fixed plates are rotatably connected to the two sides of the rotating ring, the cylinder passes through the upper parts of the two fixed plates in sequence, and the cylinder is fixedly connected to the two fixed plates; The rotating ring is evenly provided with a plurality of leakage holes, each of which is a truncated cone-shaped structure with a larger inner portion and a smaller outer portion, and the diameter of the inner opening end of the leakage hole is adapted to the adjacent filter plate hole; A screening box is provided on one side of the inner part of the rotating ring, one side wall of the screening box is an open structure and is in sliding contact with the inner wall of the rotating ring, one end of the screening box is connected and fixed to the inner wall of the adjacent fixing plate, the other end of the screening box is a closed structure, and the inner bottom surface of the screening box is arranged in an inclined shape; A through hole is provided at the opening end of the side wall of the screening box at a position opposite to the leakage hole, wherein the longitudinal length of the through hole is equal to the diameter of the corresponding leakage hole, and the transverse length of the through hole is equal to the radius of the corresponding leakage hole; Wherein, the conveying mechanism also includes a rotating shaft coaxially connected to the inside of the cylinder, and an auger blade is sleeved on the outer wall of the rotating shaft, and the outer wall of the auger blade is in sliding contact with the inner wall of the cylinder.

2. The plastic particle preparation and sorting device according to claim 1, characterized in that: A cleaning port is provided at the lower part of the fixed plate located on the higher side of the screening box, a rotating plate is hinged on the top surface of the cleaning port, a plurality of circular holes are evenly provided on the side wall of the rotating plate, a card block is elastically connected to the inside of the circular hole through a reset spring, and a card groove which is engaged with the card block is provided on the inner wall of the cleaning port.

3. A plastic particle preparation and sorting device according to claim 2, characterized in that: A connection groove is provided on a fixed plate connected and fixed to the screening box at a position relative to the front opening end of the screening box, and a support plate is fixed on one side of the fixed plate connected and fixed to the screening box, and the support plate is in a U-shaped structure; The end of the support plate away from the cylinder is connected to a collection box, and a partition is fixedly arranged between the top surface of the support plate and the top surface of the collection box, and the partition is in an L-shaped structure.

4. A plastic particle preparation and sorting device according to claim 3, characterized in that: A guide plate is provided between the lower sides of the plurality of rotating rings, the guide plate is arranged in an inclined shape, the middle part of the guide plate has an obtuse angle bend, the guide plate has a U-shaped structure, the guide plate and the collection box are connected and fixed to the top surface of the base through a plurality of vertical rods, the lower part of the cylinder passes through the front end of the guide plate and extends upwards, the open end on one side of the guide plate is hinged with a movable door through a hinge shaft, and a torsion spring is sleeved on the hinge shaft.

5. The plastic particle preparation and sorting device according to claim 1, characterized in that: A plurality of tooth columns are fixedly arranged at the rear end of the inner wall of the rotating ring, a through groove is provided on the top surface of the cylinder relative to the position of the tooth column, and an annular groove is provided on the inner wall of the cylinder relative to the position of the through groove. The tooth column extends through the through groove to the upper part of the annular groove, and a rack meshing with the tooth column is slidably arranged inside the annular groove, and the rack is an arc-shaped structure.

6. A plastic particle preparation and sorting device according to claim 5, characterized in that: The rear wall of the annular groove is provided with a plurality of plate grooves, the inside of the plate groove is elastically connected with a baffle via a compression spring, the front wall of the annular groove is provided with a slot which is plugged into and matched with the front end of the baffle, an outer wall on one side of the baffle is provided with an extrusion groove, and the end of the rack is extruded and matched with the extrusion groove.

7. The plastic particle preparation and sorting device according to claim 1, characterized in that: The material trough is in an L-shaped structure, the bottom surface of the material trough is in an inclined structure, the cylinder is arranged in an inclined structure, the lower end of the rotating shaft is rotatably connected to the bottom surface of the material trough, the upper end of the rotating shaft passes through the inner top surface of the cylinder and extends to the outside and is coaxially fixedly connected with a motor.

8. The plastic particle preparation and sorting device according to claim 5, characterized in that: The bottom surface of the cylinder is provided with a second discharge port relative to the upper end of the auger blade, the second discharge port corresponds to the upper opening end of the guide plate, the top surface of the rack is connected and fixed to the side wall of the auger blade, and the lower end of the front wall of the cylinder is provided with an inlet.

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