A plastic recycling particle screening device

Abstract

The utility model relates to the technical field of plastic recycling, specifically disclose a kind of plastic recycling granule screening device, comprising: mount, the mount is provided with mounting frame on by rotating component, rotating plate is equipped in the mounting frame inside, the mounting frame frame mouth is provided with baffle by connecting component, rotating plate and baffle between are equipped with first cylinder, second cylinder and third cylinder, first cylinder, second cylinder and third cylinder are all cylindrical tubular and concentric nested arrangement;The utility model is through the cooperation of first motor, first shaft, first gear and second gear, drive rotating seat and rotating plate to rotate at low speed, under the cooperation of spud and spigot, so that first cylinder, second cylinder and third cylinder rotate, screen material, so that material tumble moves in cylinder, to make material and screen hole on cylinder contact sufficiently, improve material screening efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of plastic recycling technology, specifically relating to a plastic recycling particle screening device. Background Technology

[0002] Plastic recycling pellets refer to rice-grain-shaped recycled plastic raw materials made from waste plastic products (such as beverage bottles, films, appliance casings, pipes, etc.) through processes such as crushing, washing, drying, melt extrusion, and pelletizing. They retain the main chemical structure of the original plastic and can be classified according to material and color, and reused in processes such as injection molding, fiber drawing, and blown film, realizing the recycling of waste plastic into new plastic.

[0003] Existing plastic recycling pellet screening devices generally use multi-stage vibrating screens to screen pellets. In actual use, the material pellets fall onto the screen plate through the feed port in the hopper for screening. However, the material falling onto the screen plate tends to accumulate and is not easy to spread evenly on the screen plate, making it difficult for the material to fully contact the screen plate, thus reducing the screening efficiency and affecting the use. Utility Model Content

[0004] The purpose of this invention is to provide a plastic recycling granule screening device that allows the material to come into full contact with the screen, thereby improving the material screening efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A plastic recycling granule screening device includes: a mounting base, a mounting frame mounted on the mounting base via a rotating assembly, a rotating plate inside the mounting frame, a baffle mounted at the opening of the mounting frame via a connecting assembly, a first roller, a second roller, and a third roller between the rotating plate and the baffle, the first roller, the second roller, and the third roller being all cylindrical tubes and concentrically nested, each of the first roller, the second roller, and the third roller having screen holes with the diameter of the screen holes decreasing sequentially from the inside to the outside, a rotating mechanism mounted on the rotating plate, and a rolling assembly between the first roller, the second roller, the third roller, and the baffle.

[0007] The rotating mechanism includes multiple insert rods fixedly mounted on the outer walls of the first, second, and third rollers. The multiple insert rods are arranged in a circular and equidistant manner on the first, second, and third rollers. The outer wall of the rotating plate has an insertion port adapted to the insert rods. The insert rods pass through the insertion port and extend outward. The mounting frame is provided with a rotating assembly.

[0008] Preferably, the rotating assembly includes a rotating seat fixedly disposed on the outer side wall of the rotating plate, the outer side wall of the rotating seat being rotatably disposed on the inner side wall of the mounting frame, and a first gear being fixedly sleeved on the outer side wall of the rotating seat.

[0009] Preferably, a first motor is fixedly mounted on the outer wall of the mounting frame, a first rotating shaft is fixedly mounted on the output end of the first motor, and a second gear is fixedly mounted on the end of the first rotating shaft through the mounting frame, with the first gear and the second gear meshing with each other.

[0010] Preferably, the rolling assembly includes an annular block fixedly disposed on the outer side wall of the first roller, the second roller and the third roller. The outer side wall of the baffle is provided with an annular groove adapted to the annular block. The annular block is inserted into the annular groove. A plurality of balls are embedded in the outer side wall of the annular block. The balls are rotatably disposed on the annular block and contact the inner side wall of the annular groove.

[0011] Preferably, the connecting assembly includes multiple connecting plates fixedly disposed on the outer wall of the baffle, and multiple fixing blocks adapted to the connecting plates are fixedly disposed on the outer wall of the mounting frame, and the connecting plates and fixing blocks are fixedly connected by bolts.

[0012] Preferably, the rotating assembly includes two rotating rods fixedly mounted on the outer wall of the mounting frame. The ends of the two rotating rods are rotatably connected to the inner wall of the mounting base. A second motor is fixedly mounted on the outer wall of the mounting base. A second rotating shaft is fixedly mounted on the output end of the second motor. The end of the second rotating shaft and the end of the rotating rod at the corresponding position are fixedly mounted.

[0013] Preferably, the outer side wall of the baffle is provided with a discharge port adapted to the first roller, the second roller and the third roller, and a cover plate is provided at the discharge port.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The first motor, first shaft, first gear, and second gear work together to drive the rotating seat and rotating plate to rotate at a low speed. With the cooperation of the insert rod and the insert, the first, second, and third rollers rotate to screen the material. The material tumbles and moves inside the rollers, ensuring that the material fully contacts the screen holes on the rollers, preventing material from accumulating on the screen plate and improving material screening efficiency. At the same time, the baffle is set up, and the rollers can be disassembled after the baffle is removed, which facilitates the maintenance and replacement of the rollers and makes them convenient to use. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between the mounting base and the mounting frame in this utility model;

[0018] Figure 3 This is a cross-sectional view of the mounting frame in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the insertion rod and the socket in this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the annular block and the ball bearing in this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the baffle in this utility model;

[0022] Figure 7 for Figure 3 Enlarged view of the structure at point A in the middle;

[0023] In the diagram: 1. Mounting base; 2. Mounting frame; 3. Rotating plate; 4. Baffle; 5. First roller; 6. Second roller; 7. Third roller; 8. Insert rod; 9. Rotating seat; 10. First gear; 11. First motor; 12. First rotating shaft; 13. Second gear; 14. Annular block; 15. Annular groove; 16. Ball bearing; 17. Connecting plate; 18. Fixing frame; 19. Cover plate; 20. Rotating rod; 21. Second motor; 22. Second rotating shaft. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Please see Figure 1 - Figure 7 As shown, a plastic recycling granule screening device includes: a mounting base 1, a mounting frame 2 mounted on the mounting base 1 via a rotating assembly, a rotating plate 3 inside the mounting frame 2, a baffle 4 at the opening of the mounting frame 2 via a connecting assembly, a first roller 5, a second roller 6, and a third roller 7 between the rotating plate 3 and the baffle 4, the first roller 5, the second roller 6, and the third roller 7 are all cylindrical tubes and concentrically nested, each of the first roller 5, the second roller 6, and the third roller 7 has a screen hole, the diameter of the screen hole decreasing sequentially from the inside to the outside, a rotating mechanism on the rotating plate 3, and a rolling assembly between the first roller 5, the second roller 6, and the third roller 7 and the baffle 4;

[0027] The rotating mechanism includes multiple insert rods 8 fixedly mounted on the outer walls of the first roller 5, the second roller 6, and the third roller 7. The multiple insert rods 8 are arranged in a circular and equidistant manner on the first roller 5, the second roller 6, and the third roller 7. The outer wall of the rotating plate 3 has an insertion port that is adapted to the insert rods 8. The insert rods 8 pass through the insertion port and extend outward. The mounting frame 2 is provided with a rotating component.

[0028] As can be seen from the above, when the plastic granules enter the innermost first roller 5, the rotating assembly drives the rotating plate 3 to rotate. The rotating plate 3, through the cooperation of the insert rod 8 and the socket, drives the first roller 5, the second roller 6, and the third roller 7 to rotate synchronously at a low speed. At the same time, the use of the insert rod 8 and the socket also facilitates the connection and disassembly of the first roller 5, the second roller 6, the third roller 7, and the rotating plate 3. The granules roll forward along the cylinder wall, and materials smaller than the screen holes pass through the three layers of rollers in sequence to complete the coarse, medium, and fine particle size classification, avoiding the dead corners of traditional vibrating screens and improving the material screening efficiency.

[0029] Specifically, regarding the aforementioned rotating component, please refer to... Figure 1 , Figure 3 , Figure 4 and Figure 7 As shown, the rotating assembly includes a rotating seat 9 fixedly mounted on the outer side wall of the rotating plate 3, the outer side wall of the rotating seat 9 being rotatably mounted on the inner side wall of the mounting frame 2, and a first gear 10 fixedly sleeved on the outer side wall of the rotating seat 9.

[0030] A first motor 11 is fixedly mounted on the outer wall of the mounting frame 2. A first rotating shaft 12 is fixedly mounted on the output end of the first motor 11. The end of the first rotating shaft 12 passes through the mounting frame 2 and is fixedly mounted on a second gear 13. The first gear 10 and the second gear 13 are meshed together.

[0031] As can be seen from the above, the first motor 11 drives the second gear 13 to rotate through the first rotating shaft 12. The second gear 13 meshes with the first gear 10, causing the rotating seat 9 and the rotating plate 3 to rotate at a low and uniform speed.

[0032] Specifically, regarding the scrolling component and the connecting component mentioned above, please refer to... Figure 2 , Figure 5 and Figure 6 As shown, the rolling assembly includes an annular block 14 fixedly disposed on the outer side wall of the first roller 5, the second roller 6 and the third roller 7. The outer side wall of the baffle 4 is provided with an annular groove 15 adapted to the annular block 14. The annular block 14 is inserted into the annular groove 15. A plurality of balls 16 are embedded in the outer side wall of the annular block 14. The balls 16 are rotatably disposed on the annular block 14 and contact the inner side wall of the annular groove 15.

[0033] The connecting assembly includes multiple connecting plates 17 fixedly mounted on the outer side wall of the baffle 4, and multiple fixing blocks 18 adapted to the connecting plates 17 fixedly mounted on the outer side wall of the mounting frame 2. The connecting plates 17 and the fixing blocks 18 are fixedly connected by bolts.

[0034] As can be seen from the above, the use of the annular block 14, the annular groove 15 and the ball bearing 16 reduces the frictional resistance between the first roller 5, the second roller 6 and the third roller 7 and the baffle 4 when they rotate, and also reduces the wear on the ends of the first roller 5, the second roller 6 and the third roller 7, extending their service life. The use of the connecting components makes it easy to fix and remove the baffle 4, thereby facilitating the disassembly, maintenance and replacement of the first roller 5, the second roller 6 and the third roller 7. By removing the bolts, the connecting plate 17 and the fixing block 18 are separated, the baffle 4 is removed from the mounting frame 2, and the first roller 5, the second roller 6 and the third roller 7 can be disassembled by pulling out the rollers, making it convenient to use.

[0035] Example 2:

[0036] The rotating assembly includes two rotating rods 20 fixedly mounted on the outer wall of the mounting frame 2. The ends of the two rotating rods 20 are rotatably connected to the inner wall of the mounting base 1. A second motor 21 is fixedly mounted on the outer wall of the mounting base 1. A second rotating shaft 22 is fixedly mounted on the output end of the second motor 21. The end of the second rotating shaft 22 and the end of the rotating rod 20 at the corresponding position are fixedly mounted.

[0037] As can be seen from the above, the second motor 21 directly drives the rotating rod 20 through the second rotating shaft 22, which in turn drives the mounting frame 2 to rotate. When feeding, one end of the baffle 4 is tilted upward, and when discharging, one end of the baffle 4 is tilted or vertically downward, which facilitates feeding and discharging. During screening, the mounting frame 2 can also be rotated to allow the material to move inside the first drum 5, the second drum 6, and the third drum 7, so that the material can fully contact the screen holes and improve screening efficiency.

[0038] Preferably, the outer side wall of the baffle 4 is provided with a discharge port that is adapted to the first roller 5, the second roller 6 and the third roller 7, and a cover plate 19 is provided at the discharge port.

[0039] As can be seen from the above, the cover plate 19 is hinged on the baffle plate 4 to open and close the discharge port, thereby preventing material leakage.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic recycling pellet screening device, characterized in that, include: Mounting base (1), mounting base (1) is provided with mounting frame (2) by rotating component, mounting frame (2) is provided with rotating plate (3) inside, mounting frame (2) is provided with baffle (4) by connecting component at frame opening, first roller (5), second roller (6) and third roller (7) are provided between rotating plate (3) and baffle (4), first roller (5), second roller (6) and third roller (7) are all cylindrical tubes and are concentrically nested, first roller (5), second roller (6) and third roller (7) are all provided with screen holes, the diameter of the screen holes is gradually reduced from the inside to the outside, rotating plate (3) is provided with rotating mechanism, first roller (5), second roller (6) and third roller (7) and baffle (4) are provided with rolling component; The rotating mechanism includes multiple insert rods (8) fixedly installed on the outer walls of the first roller (5), the second roller (6) and the third roller (7). The multiple insert rods (8) are arranged in a circular and equidistant manner on the first roller (5), the second roller (6) and the third roller (7). The outer wall of the rotating plate (3) is provided with a socket that is compatible with the insert rods (8). The insert rods (8) pass through the socket and extend outward. The mounting frame (2) is provided with a rotating component.

2. The plastic recycling granule screening device according to claim 1, characterized in that: The rotating assembly includes a rotating seat (9) fixedly mounted on the outer side wall of the rotating plate (3), the outer side wall of the rotating seat (9) being rotatably mounted on the inner side wall of the mounting frame (2), and a first gear (10) fixedly sleeved on the outer side wall of the rotating seat (9).

3. The plastic recycling granule screening device according to claim 2, characterized in that: A first motor (11) is fixedly installed on the outer wall of the mounting frame (2). A first rotating shaft (12) is fixedly installed at the output end of the first motor (11). The end of the first rotating shaft (12) passes through the mounting frame (2) and is fixedly installed with a second gear (13). The first gear (10) and the second gear (13) are meshed together.

4. The plastic recycling granule screening device according to claim 1, characterized in that: The rolling assembly includes an annular block (14) fixedly disposed on the outer side wall of the first roller (5), the second roller (6) and the third roller (7). The outer side wall of the baffle (4) is provided with an annular groove (15) adapted to the annular block (14). The annular block (14) is inserted into the annular groove (15). A plurality of balls (16) are embedded in the outer side wall of the annular block (14). The balls (16) are rotatably disposed on the annular block (14) and contact the inner side wall of the annular groove (15).

5. The plastic recycling granule screening device according to claim 1, characterized in that: The connecting assembly includes multiple connecting plates (17) fixedly installed on the outer side wall of the baffle (4), and multiple fixing blocks (18) adapted to the connecting plates (17) are fixedly installed on the outer side wall of the mounting frame (2). The connecting plates (17) and the fixing blocks (18) are fixedly connected by bolts.

6. The plastic recycling granule screening device according to claim 1, characterized in that: The rotating assembly includes two rotating rods (20) fixedly mounted on the outer wall of the mounting frame (2). The ends of the two rotating rods (20) are rotatably connected to the inner wall of the mounting base (1). A second motor (21) is fixedly mounted on the outer wall of the mounting base (1). A second rotating shaft (22) is fixedly mounted on the output end of the second motor (21). The end of the second rotating shaft (22) and the end of the rotating rod (20) at the corresponding position are fixedly mounted.

7. The plastic recycling granule screening device according to claim 1, characterized in that: The outer side wall of the baffle (4) is provided with a discharge port that is compatible with the first roller (5), the second roller (6) and the third roller (7), and a cover plate (19) is provided at the discharge port.

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