Plastic particle screening device
By installing a dispersing rod and dispersing blade inside the feed pipe, and a scraper on the filter screen, combined with a motor drive system, the problems of plastic particle adhesion and filter screen clogging during screening are solved, achieving efficient screening and convenient cleaning.
Patent Information
- Application Number
- CN202423171572.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing screening devices are not convenient for breaking up plastic particles before screening, which leads to adhesion, and particles are easily stuck on the filter screen, affecting screening efficiency.
A feed pipe with a dispersing rod and dispersing blades was designed, along with a filter screen structure with scrapers. Combined with a motor drive system, this achieves particle dispersal and filter screen cleaning.
It effectively prevents plastic particles from sticking together during screening, improves screening efficiency, facilitates filter cleaning, and ensures the continuity and efficiency of the screening process.
Smart Images
Figure CN223507481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a screening device, and more specifically to a plastic particle screening device. Background Technology
[0002] In the production of plastic granules, a granulator is required. The granulation process is as follows: after being melted at high temperature in an extruder, the plastic strip is extruded to form a plastic bar. After being cooled, the plastic bar enters the granulator and is cut into plastic granules. Since some of the finished granules are not the size required for use during the granulation process, a screening machine is needed to screen the plastic granules.
[0003] Screening devices are required for screening. However, some current screening devices are not convenient for breaking up plastic particles before screening, which may cause the plastic particles to stick together during screening. After screening for a period of time, the plastic particles may get stuck on the filter screen. Some screening devices are inconvenient for cleaning the plastic particles on the filter screen, which affects the screening efficiency. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, the present invention provides a plastic particle screening device, which has the effect of facilitating the dispersing of plastic particles before screening and facilitating the cleaning of the filter screen.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic granule screening device, comprising a screening box, characterized in that: a feed inlet is provided on the screening box; a feed pipe is provided at the feed inlet; a dispersing rod and a dispersing blade are provided inside the feed pipe; a first filter screen and a second filter screen are provided inside the screening box; scrapers are provided on the first filter screen and the second filter screen; the scrapers are connected to the telescopic shaft of a first motor; a base is provided on the outside of the screening box; rollers are provided at the bottom of the screening box; and a second motor is provided on the base.
[0006] The present invention is further configured as follows: a third motor is provided above the feed pipe; the output shaft of the third motor is connected to the dispersing rod; an upper block and a lower block are provided inside the feed pipe; a pull-out plate is provided between the upper block and the lower block; the pull-out plate passes through one side of the feed pipe; a vacuum cleaner is provided on one side of the feed pipe; the vacuum cleaner is connected to a suction pipe; the suction pipe is located inside the screening box.
[0007] The present invention is further configured such that: a placement plate is provided on the outside of the screening box; the first motor is located on the placement plate; the placement plate and the first motor are inclined; the mesh opening of the first filter screen is larger than that of the second filter screen; an upper discharge pipe is provided on one side of the first filter screen; a lower discharge pipe is provided on one side of the second filter screen; and a tube plate is provided on both the upper discharge pipe and the lower discharge pipe.
[0008] The present invention is further configured such that: the screening box has a flip plate; the flip plate is connected to the screening box via a hinge; the flip plate has a first limiting block; the screening box has a second limiting block; the first limiting block has a groove; the second limiting block has a through hole; and a middle block is provided on the through hole and the groove.
[0009] The present invention is further configured such that: a receiving groove is provided below the second filter screen; a handle is provided on the receiving groove; the telescopic shaft of the second motor is fixedly connected to the side plate; and the side plate is fixedly connected to the outside of the screening box.
[0010] The present invention is further configured such that: an observation port is provided on the screening box; and a transparent plate is provided at the observation port.
[0011] In summary, this utility model has the following beneficial effects: the dispersing rod and dispersing blade installed in the feed pipe disperse the plastic particles that are about to enter the screening box, thereby preventing the plastic particles from sticking together during screening; after the first motor starts, it drives the scraper to move on the first and second filter screens through the telescopic shaft, thereby cleaning the plastic particles stuck on the first and second filter screens, thus facilitating the cleaning of the filter screens. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this embodiment;
[0013] Figure 2 yes Figure 1 Enlarged view of part A;
[0014] Figure 3 This is a schematic diagram of the flip plate, the first limiting block, and the second limiting block in this embodiment.
[0015] Reference numerals: 1. Screening box; 2. Feed inlet; 3. Feed pipe; 4. Dispersing rod; 5. Dispersing leaf; 6. First filter screen; 7. Second filter screen; 8. Scraper; 9. First motor; 10. Base; 11. Roller; 12. Second motor; 13. Third motor; 14. Upper block; 15. Lower block; 16. Pull-out plate; 17. Vacuum cleaner; 18. Suction pipe; 19. Placement plate; 20. Upper discharge pipe; 21. Lower discharge pipe; 22. Tube plate; 23. Flip plate; 24. Hinge; 25. First limiting block; 26. Second limiting block; 27. Groove; 28. Through hole; 29. Middle block; 30. Receiving trough; 31. Handle; 32. Side plate; 33. Observation port; 34. Transparent plate. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings.
[0017] This embodiment discloses a plastic particle screening device, such as... Figures 1 to 3 As shown, this utility model facilitates the dispersing of plastic particles before screening and the cleaning of the filter screen. It includes a screening box 1, characterized in that: a feed inlet 2 is provided on the screening box 1; a feed pipe 3 is provided at the feed inlet 2; a dispersing rod 4 and a dispersing blade 5 are provided inside the feed pipe 3; a first filter screen 6 and a second filter screen 7 are provided inside the screening box 1; scrapers 8 are provided on the first filter screen 6 and the second filter screen 7; the scrapers 8 are connected to the telescopic shaft of a first motor 9; a base 10 is provided on the outside of the screening box 1; rollers 11 are provided at the bottom of the screening box 1; and a second motor 12 is provided on the base 10.
[0018] By adopting the above technical solution: the feed pipe 3 facilitates the feeding of plastic granules to be screened into the screening box 1 through the feed port 2; the dispersing rod 4 and the dispersing blade 5 disperse the plastic granules to prevent them from sticking together during screening, thus facilitating the dispersing of the plastic granules before screening; after the first motor 9 starts, it drives the scraper 8 to move on the first filter screen 6 and the second filter screen 7 through the telescopic shaft, thereby cleaning the plastic granules stuck on the first filter screen 6 and the second filter screen 7, thus facilitating the cleaning of the filter screens. During screening, before screening, and after screening, the plastic granules on the first filter screen 6 and the second filter screen 7 can be cleaned by the scraper 8, thus facilitating the cleaning of the filter screens; the screening box 1 is moved by the roller 11, and the telescopic shaft of the second motor 12 extends and retracts, driving the screening box 1 to move back and forth, thereby making the plastic granules on the first filter screen 6 and the second filter screen 7 move back and forth, thus facilitating screening.
[0019] like Figure 1 As shown, a third motor 13 is installed above the feed pipe 3; the output shaft of the third motor 13 is connected to the dispersing rod 4; an upper block 14 and a lower block 15 are installed inside the feed pipe 3; a pull-out plate 16 is installed between the upper block 14 and the lower block 15; the pull-out plate 16 passes through one side of the feed pipe 3; a vacuum cleaner 17 is installed on one side of the feed pipe 3; the vacuum cleaner 17 is connected to a suction pipe 18; the suction pipe 18 is located inside the screening box 1.
[0020] By adopting the above technical solution: the third motor 13 drives the dispersing rod 4 and the dispersing blade 5 to rotate, thereby dispersing the plastic particles; the pull plate 16 can control the degree of withdrawal on the feed pipe 3, thereby controlling the speed at which the plastic particles in the feed pipe 3 enter the screening box 1, preventing too many plastic particles on the first filter screen 6 during screening, thus facilitating screening; the vacuum cleaner 17 is started during screening, and the dust and other impurities generated during screening are absorbed into the vacuum cleaner 17 through the suction pipe 18, thereby preventing dust from flying.
[0021] like Figure 1As shown, a placement plate 19 is provided on the outside of the screening box 1; the first motor 9 is located on the placement plate 19; the placement plate 19 and the first motor 9 are inclined; the mesh opening of the first filter screen 6 is larger than the mesh opening of the second filter screen 7; an upper discharge pipe 20 is provided on one side of the first filter screen 6; a lower discharge pipe 21 is provided on one side of the second filter screen 7; and tube plates 22 are provided on both the upper discharge pipe 20 and the lower discharge pipe 21.
[0022] By adopting the above technical solution: the placement plate 19 ensures the stable setting of the first motor 9; during screening, larger plastic particles remain on the first filter screen 6; medium and smaller plastic particles fall through the first filter screen 6 onto the second filter screen 7, with the medium-sized plastic particles remaining on the second filter screen 7; the smallest plastic particles fall through the second filter screen 7; during screening, the tube plate 22 is respectively set on the upper discharge pipe 20 and the lower discharge pipe 21 to prevent plastic particles from detaching from the screening box 1; after screening, the larger plastic particles on the first filter screen 6 are discharged through the upper discharge pipe 20, and the medium-sized plastic particles on the second filter screen 7 are discharged through the lower discharge pipe 21.
[0023] like Figure 1 , Figure 3 As shown, the screening box 1 has a flip plate 23; the flip plate 23 is connected to the screening box 1 via a hinge 24; the flip plate 23 has a first limiting block 25; the screening box 1 has a second limiting block 26; the first limiting block 25 has a groove 27; the second limiting block 26 has a through hole 28; and a middle block 29 is provided on the through hole 28 and the groove 27.
[0024] like Figure 1 As shown, a receiving trough 30 is provided below the second filter screen 7; a handle 31 is provided on the receiving trough 30; the telescopic shaft of the second motor 12 is fixedly connected to the side plate 32; the side plate 32 is fixedly connected to the outside of the screening box 1.
[0025] By adopting the above technical solution: the smallest plastic particles falling through the second filter screen 7 fall into the receiving trough 30. During screening, the flip plate 23 is in a closed state. The flip plate 23 flips on the screening box 1 through the hinge 24. When the middle block 29 passes through the through hole 28 and one end is set in the groove 27, the middle block 29 restricts the flip plate 23 to prevent the flip plate 23 from flipping randomly during screening. The handle 31 facilitates the picking up and putting down of the receiving trough 30. The side plate 32 can increase the contact area between the telescopic shaft of the second motor 12 and the screening box 1, thereby better controlling the reciprocating movement of the screening box 1.
[0026] like Figure 1 As shown, the screening box 1 is provided with an observation port 33; a transparent plate 34 is provided at the observation port 33.
[0027] By adopting the above technical solution, the observation port 33 and the transparent plate 34 make it easier for people to see the condition inside the screening box 1, so that adjustments can be made in a timely manner during screening.
[0028] In summary, this utility model has the following beneficial effects: the dispersing rod 4 and dispersing blade 5 installed in the feed pipe 3 disperse the plastic particles that are about to enter the screening box 1, thereby preventing the plastic particles from sticking together during screening; after the first motor 9 starts, it drives the scraper 8 to move on the first filter screen 6 and the second filter screen 7 through the telescopic shaft, thereby cleaning the plastic particles stuck on the first filter screen 6 and the second filter screen 7, thus facilitating the cleaning of the filter screens.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A plastic granule screening device, comprising a screening box (1), characterized in that: The screening box (1) is provided with a feed inlet (2); a feed pipe (3) is provided at the feed inlet (2); a dispersing rod (4) and a dispersing leaf (5) are provided inside the feed pipe (3); a first filter screen (6) and a second filter screen (7) are provided inside the screening box (1); a scraper (8) is provided on the first filter screen (6) and the second filter screen (7); the scraper (8) is connected to the telescopic shaft of the first motor (9); a base (10) is provided on the outside of the screening box (1); a roller (11) is provided at the bottom of the screening box (1); a second motor (12) is provided on the base (10).
2. The plastic granule screening device according to claim 1, characterized in that: A third motor (13) is provided above the feed pipe (3); the output shaft of the third motor (13) is connected to the dispersing rod (4); an upper block (14) and a lower block (15) are provided inside the feed pipe (3); a pull plate (16) is provided between the upper block (14) and the lower block (15); the pull plate (16) passes through one side of the feed pipe (3); a vacuum cleaner (17) is provided on one side of the feed pipe (3); the vacuum cleaner (17) is connected to the suction pipe (18); the suction pipe (18) is located inside the screening box (1).
3. The plastic granule screening device according to claim 2, characterized in that: A placement plate (19) is provided on the outside of the screening box (1); the first motor (9) is located on the placement plate (19); the placement plate (19) and the first motor (9) are inclined; the mesh holes of the first filter screen (6) are larger than the mesh holes of the second filter screen (7); an upper discharge pipe (20) is provided on one side of the first filter screen (6); a lower discharge pipe (21) is provided on one side of the second filter screen (7); and tube plates (22) are provided on both the upper discharge pipe (20) and the lower discharge pipe (21).
4. The plastic granule screening device according to claim 3, characterized in that: The screening box (1) has a flip plate (23); the flip plate (23) is connected to the screening box (1) by a hinge (24); the flip plate (23) has a first limiting block (25); the screening box (1) has a second limiting block (26); the first limiting block (25) has a groove (27); the second limiting block (26) has a through hole (28); and a middle block (29) is provided on the through hole (28) and the groove (27).
5. The plastic granule screening device according to claim 4, characterized in that: A receiving trough (30) is provided below the second filter screen (7); a handle (31) is provided on the receiving trough (30); the telescopic shaft of the second motor (12) is fixedly connected to the side plate (32); the side plate (32) is fixedly connected to the outside of the screening box (1).
6. The plastic granule screening device according to claim 5, characterized in that: The screening box (1) is provided with an observation port (33); a transparent plate (34) is provided at the observation port (33).