Plastic particle reprocessing device

Abstract

The utility model discloses a reprocessing device for plastic particles, and particularly relates to the technical field of reprocessed plastics, which comprises a support plate fixedly mounted on a mounting frame, a screening cylinder rotatably mounted at the top of the support plate, and a feeding cylinder fixedly communicated with the top of the screening cylinder. A first annular screen, a second annular screen and a third annular screen are sequentially and fixedly mounted in an inner cavity of the screening cylinder from inside to outside, a discharging port is formed in the bottom of the screening cylinder, a covering plate is rotatably mounted at the bottom of the peripheral wall of the screening cylinder, a discharging port matched with the discharging port fixedly communicates with the bottom of the covering plate, and a disturbance assembly is mounted on the inner side of the first annular screen. A plurality of stirring rods are rotationally mounted on the screening cylinder in a penetrating manner; according to the plastic particle screening device, the first annular screen, the second annular screen and the third annular screen are driven to screen plastic particles through the screening cylinder rotating in a reciprocating mode within a certain autorotation angle, a vibrator does not need to be installed on each layer of screening net, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of recycled plastics, in particular to a reprocessing device for plastic particles. Background Art

[0002] Patent publication number CN220593725U discloses a vibrating multi-stage screening device for plastic particles, including a box body, with a feed port provided at the top of the box body near the front. Materials are added through the feed port, and the first, second and third screen plates are driven to vibrate by starting the vibration motor, and the materials are screened in increasing order from top to bottom. A connecting cloth is provided to prevent the materials from falling through the gaps between the screen plates. A slider is provided to slide on the inner wall of the rectangular frame through the tension of the spring as a support, so that the elasticity of the spring can increase the vibration amplitude of the screen plate to improve the screening effect.

[0003] In the existing technology, the multi-stage screening method for plastic particles mostly requires the installation of multiple layers of screening nets, and a vibrator must be installed on each layer of the screening net to vibrate and screen the plastic particles. This method will make the cost too high, and it is difficult to ensure that the mixed plastic particles of different sizes are fully screened by vibration alone, thereby reducing the screening efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a device for reprocessing plastic particles.

[0005] The technical problem solved by the utility model is that the multi-stage screening of plastic particles by means of vibration screening has high cost, poor screening effect and low screening efficiency.

[0006] The utility model can be realized through the following technical scheme: it includes a support plate fixedly mounted on a mounting frame, a screening cylinder capable of reciprocatingly rotating within a certain rotation range is mounted on the top of the support plate, a feed cylinder is fixedly connected to the top of the screening cylinder, an annular screen 1, an annular screen 2, and an annular screen 3 are fixedly mounted on the inner cavity of the screening cylinder from the inside to the outside, a discharge port is provided at the bottom of the screening cylinder, a cover plate is rotatably mounted on the bottom of the outer peripheral wall of the screening cylinder, a discharge port adapted to the discharge port is fixedly connected to the bottom of the cover plate, a disturbance component for stirring the plastic particles as the screening cylinder rotates is mounted on the inner side of the annular screen 1, and a plurality of stirring rods which rotate as the screening cylinder rotates are rotatably mounted on the screening cylinder.

[0007] A further technical improvement of the present invention is that the aperture sizes of the annular screen 1, the annular screen 2 and the annular screen 3 decrease in sequence.

[0008] Furthermore, the structure that causes the screening cylinder to rotate back and forth includes a support frame fixedly installed on the top of the mounting frame, a rotating plate rotatably installed on the bottom of the top plate of the support frame, a slide plate fixedly installed on the outer peripheral wall of the feed cylinder near the rotating plate, and the end of the rotating plate away from the rotating shaft is slidably connected to the slide plate.

[0009] Furthermore, the cover plate has a certain damping when rotating.

[0010] Furthermore, the disturbance component includes a vertical pole that is rotatably installed at the center position between the screening cylinder and the cover plate, the bottom end of the vertical pole is fixedly connected to the bottom plate of the mounting frame, and several disturbance rods are evenly fixedly installed on the outer peripheral wall of the vertical pole.

[0011] Furthermore, the structure that causes the several stirring rods to rotate with the rotation of the screening cylinder includes a gear fixedly installed on the top of the stirring rod, and gear rings are fixedly installed at the positions corresponding to the annular screen 1, annular screen 2 and annular screen 3 on the bottom of the mounting frame top plate, and the gears are meshed with the corresponding gear rings.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present application uses a screening cylinder that reciprocates within a certain rotation angle to drive annular screens 1, 2 and 3 to screen plastic particles. There is no need to install a vibrator on each layer of the screening net, thereby reducing the cost.

[0014] 2. In this application, while the reciprocating screening cylinder drives the annular screen 1, annular screen 2 and annular screen 3 to screen the plastic particles, the disturbance rod and several stirring rods are used to stir the plastic particles, preventing a large number of plastic particles from stacking together and being difficult to fully screen, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 This is a cross-sectional view of the connection between the screening cylinder and the cover plate of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection between the gear and the ring gear of the utility model.

[0020] In the figure: 1. Mounting frame; 2. Support plate; 3. Screening cylinder; 4. Annular screen 1; 5. Annular screen 2; 6. Annular screen 3; 7. Feed barrel; 8. Discharge port; 9. Cover plate; 10. Discharge port; 11. Support frame; 12. Turn plate; 13. Slide plate; 14. Vertical pole; 15. Disturbing rod; 16. Ring gear; 17. Stirring rod; 18. Gear. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0022] See also Figure 1-4 As shown, this embodiment provides a plastic granule reprocessing device, including a mounting frame 1, a support plate 2 is fixedly mounted on the mounting frame 1, a screening cylinder 3 is rotatably mounted on the top of the support plate 2, an annular screen 1 4, an annular screen 2 5, and an annular screen 3 6 are fixedly mounted on the inner cavity of the screening cylinder 3 from the inside to the outside, and the aperture sizes of the annular screen 1 4, the annular screen 2 5 and the annular screen 3 6 are reduced in sequence, a feeding cylinder 7 is fixedly connected to the top of the screening cylinder 3, a discharge port 8 is opened at the bottom of the screening cylinder 3, a cover plate 9 is rotatably mounted on the bottom of the outer peripheral wall of the screening cylinder 3, the cover plate 9 has a certain damping when rotating, and a discharge port 10 adapted to the discharge port 8 is fixedly connected to the bottom of the cover plate 9;

[0023] By rotating the shielding plate 9 so that the discharge port 10 on the shielding plate 9 coincides with the discharge port 8, the plastic particles in the screening cylinder 3 can be discharged. When the discharge port 8 and the discharge port 10 are completely staggered, the plastic particles can be prevented from being discharged from the screening cylinder 3. In addition, since the shielding plate 9 has a certain damping when rotating, after the shielding plate 9 stops rotating, when the screening cylinder 3 rotates, the shielding plate 9 will not rotate spontaneously, thereby avoiding affecting the positional relationship between the discharge port 8 and the discharge port 10.

[0024] A support frame 11 is fixedly installed on the top of the mounting frame 1, and a rotating plate 12 is rotatably installed on the bottom of the top plate of the support frame 11. A driving motor for driving the rotating plate 12 is installed on the top of the support frame 11. A chute plate 13 is fixedly installed on the outer peripheral wall of the feed cylinder 7 near the rotating plate 12. The end of the rotating plate 12 away from the rotating shaft is slidably connected to the chute plate 13. A vertical rod 14 is rotatably installed through the center position between the screening cylinder 3 and the cover plate 9. The bottom end of the vertical rod 14 is fixedly connected to the bottom plate of the mounting frame 1, and the outer peripheral wall of the vertical rod 14 is evenly fixed with several interfering actuators 15;

[0025] When the rotating plate 12 rotates, it will prompt the feed cylinder 7 to drive the screening cylinder 3 to rotate back and forth within a certain rotation angle through the chute plate 13, so that the screening cylinder 3 drives the annular screen 1 4, the annular screen 2 5 and the annular screen 3 6 to screen the plastic in the screening cylinder 3. The plastic particles enter the screening cylinder 3 from the feed cylinder 7, and under the reciprocating rotation of the screening cylinder 3, the plastic particles of appropriate size pass through the annular screen 1 4, the annular screen 2 5 and the annular screen 3 6 in turn, so that the plastic particles retained on the annular screen 1 4 are separated. The plastic particles on the inner circumferential walls of the annular screen 5 and the annular screen 3 6 are gradually reduced, and while the screening cylinder 3 rotates back and forth, the vertical rod 14 and the screening cylinder 3 rotate relative to each other, so that the disturbing rod 15 on the vertical rod 14 disturbs the plastic particles introduced from the feed cylinder 7 into the screening cylinder 3, thereby avoiding the stacking of plastic particles of different sizes due to an excessive number of plastic particles, and the mixing of smaller plastic particles with larger plastic particles, thereby avoiding the problems of difficulty in fully screening the plastic particles and low screening efficiency;

[0026] A gear ring 16 is fixedly installed at the bottom of the top plate of the mounting frame 1 at positions corresponding to the annular screen 1 4, the annular screen 2 5 and the annular screen 3 6. A plurality of stirring rods 17 are rotatably installed through the inner cavity of the screening cylinder 3 near the outer peripheral walls of the annular screen 1 4, the annular screen 2 5 and the annular screen 3 6. The tops of the plurality of stirring rods 17 are fixedly mounted with gears 18 that mesh with the corresponding gear rings 16.

[0027] When the screening cylinder 3 rotates, it will drive the several stirring rods 17 to move synchronously around the central axis of the screening cylinder 3, so that the gears 18 at the top of the several stirring rods 17 roll on the corresponding gear rings 16, so as to prompt the several stirring rods 17 to rotate. The rotating stirring rods 17 stir the plastic particles to avoid clogging and stacking of the plastic particles during the screening process.

[0028] When the utility model is in use, first, the cover plate 9 is rotated to completely stagger the discharge port 8 and the discharge port 10, and then the plastic particles are poured into the screening cylinder 3 through the feed cylinder 7, and then the screening cylinder 3 is rotated back and forth within a certain range of rotation, so that the plastic particles are screened by the annular screen 1 4, the annular screen 2 5 and the annular screen 3 6 in sequence, thereby reducing the size of the screened plastic particles step by step, and in the process of the rotation of the screening cylinder 3, the vertical rod 14 rotates relative to it, so that the interference rod 15 on the vertical rod 14 disturbs the plastic particles, and the stirring rods 17 rolls on the corresponding gear ring 16 through the gear 18, prompting the stirring rod 17 to rotate to stir the plastic particles, thereby preventing the smaller-sized plastic particles from being blocked in the larger-sized plastic particles and making it difficult to screen them. When the plastic particles are screened, the screening cylinder 3 stops rotating, and then the cover plate 9 is rotated to make the discharge port 10 coincide with the discharge. A collection tank is set under each of the multiple discharge ports 8, and then the screening cylinder 3 is reciprocated within a certain rotation range, thereby discharging the screened plastic particles of different sizes in the screening cylinder 3 into the corresponding collection tank.

[0029] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A plastic granule reprocessing device, comprising a support plate (2) fixedly mounted on a mounting frame (1), characterized in that: A screening cylinder (3) capable of reciprocating within a certain rotation angle is installed on the top of the support plate (2); a feed cylinder (7) is fixedly connected to the top of the screening cylinder (3); an annular screen 1 (4), an annular screen 2 (5), and an annular screen 3 (6) are fixedly installed in the inner cavity of the screening cylinder (3) from the inside to the outside; a discharge port (8) is provided at the bottom of the screening cylinder (3); a cover plate (9) is rotatably installed at the bottom of the outer peripheral wall of the screening cylinder (3); a discharge port (10) adapted to the discharge port (8) is fixedly connected to the bottom of the cover plate (9); a disturbance component for stirring the plastic particles as the screening cylinder (3) rotates is installed on the inner side of the annular screen 1 (4); and a plurality of stirring rods (17) are rotatably installed on the screening cylinder (3) and rotate as the screening cylinder (3) rotates.

2. The plastic granule reprocessing device according to claim 1, characterized in that: The aperture sizes of the annular screen 1 (4), the annular screen 2 (5) and the annular screen 3 (6) decrease in sequence.

3. The plastic granule reprocessing device according to claim 1, characterized in that: The structure for causing the screening cylinder (3) to reciprocate comprises a support frame (11) fixedly mounted on the top of the mounting frame (1), a rotating plate (12) rotatably mounted on the bottom of the top plate of the support frame (11), a chute plate (13) fixedly mounted on the outer peripheral wall of the feed cylinder (7) adjacent to the rotating plate (12), and an end of the rotating plate (12) away from the rotating shaft is slidably connected to the chute plate (13).

4. The plastic granule reprocessing device according to claim 1, characterized in that: The cover plate (9) has a certain damping when rotating.

5. The plastic granule reprocessing device according to claim 1, characterized in that: The disturbance component comprises a vertical rod (14) which is rotatably installed and passes through the center position between the screening cylinder (3) and the cover plate (9); the bottom end of the vertical rod (14) is fixedly connected to the bottom plate of the mounting frame (1); and a plurality of disturbance rods (15) are evenly fixedly installed on the outer peripheral wall of the vertical rod (14).

6. The plastic granule reprocessing device according to claim 1, characterized in that: The structure for causing the plurality of stirring rods (17) to rotate along with the rotation of the screening cylinder (3) comprises a gear (18) fixedly mounted on the top of the stirring rod (17), and a gear ring (16) fixedly mounted at the bottom of the top plate of the mounting frame (1) at positions corresponding to the annular screen 1 (4), the annular screen 2 (5) and the annular screen 3 (6), and the gear (18) meshes with the corresponding gear ring (16).

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