A smart screening device for plastic particles
By incorporating brushes and waste removal holes into the plastic particle screening equipment, and utilizing an adjustable inner cylinder and motor drive, the problems of easy clogging and difficult dust removal in plastic particle screening equipment are solved, achieving a highly efficient screening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU KERR NEW MATERIAL CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-07-31
AI Technical Summary
Existing plastic particle screening equipment is prone to clogging and has difficulty effectively screening dust and other impurities, resulting in low production efficiency and poor screening effect.
The design incorporates a brush section and a waste discharge hole inside the inner cylinder, combined with an adjustable inner cylinder and a motor-driven threaded column, to achieve rolling screening of plastic particles and dust removal, preventing clogging.
It effectively solves the problem of screening dust and impurities, avoids equipment blockage, and improves screening efficiency and effect.
Smart Images

Figure CN224575964U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic particle processing technology, and more specifically to an intelligent screening device for plastic particles. Background Technology
[0002] In the production process of plastic raw materials, the granular raw materials produced by the extrusion granulation unit need to be screened and impurity removed before entering the next process. In the existing technology, the vibrating screen has a simple structure, and plastic particles are prone to clogging the screen holes, resulting in low production efficiency and poor screening effect.
[0003] The prior art discloses a plastic particle screening and impurity removal device with the publication number CNN213321122U. This device uses a motor to drive a crank to rotate, which in turn causes a rack to slide back and forth in a sliding rail. This causes a curved screen plate to oscillate, screening the plastic particles that fall onto the curved screen plate. Impurities slide down the curved plate and are discharged, thus achieving the function of screening impurities. However, this invention also has the following problems: the curved screen plate is inclined, causing plastic particles to fall quickly. A large number of plastic particles tend to accumulate at the lower end, leading to outlet blockage. Furthermore, most impurities are dust that adheres to the surface of the plastic particles, making it difficult to screen them using simple rolling. Therefore, this invention proposes an intelligent plastic particle screening device. Utility Model Content
[0004] The purpose of this invention is to provide an intelligent screening device for plastic particles, which can effectively solve the problem of difficult screening of impurities and is less prone to clogging during the screening process.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A smart screening device for plastic particles includes a base and a support leg at the lower end of the base. A box is fixedly provided at the upper end of the base. An inner cylinder that can be tilted and adjusted by an adjustment part is provided inside the box. The inner cylinder is provided with a plurality of impurity discharge holes. Brush parts are provided on both sides of the inner cylinder. The brush parts include a central column driven by a motor and brushes fixed around it. A recycling box is provided at the lower end of the box.
[0006] Furthermore, the adjustment part includes side plates fixedly disposed at the upper and lower ends of both sides of the housing, and a threaded column is rotatably connected between the side plates. The threaded column passes through the adjustment block and is threadedly connected to the adjustment block. A second motor is fixedly disposed on the upper side plate, and the second motor drives the threaded column to rotate.
[0007] Furthermore, an inner column is provided through the side of the adjusting block away from the threaded column, and auxiliary plates are provided on both sides of the adjusting block. The two ends of the inner column are respectively engaged in the side grooves of the corresponding auxiliary plates and are slidably connected with the side grooves. The auxiliary plates are respectively fixedly connected to the motor box and the fixing plate.
[0008] Furthermore, the motor box and the fixing plate are respectively located on both sides of the inner cylinder and are rotatably connected to the inner cylinder via a rotating shaft. A motor three is fixedly installed inside the motor box, and the motor three drives the rotating shaft to rotate.
[0009] Furthermore, the inner cylinder is rotatably connected to an opening door via a hinge. The opening door is fixed to the inner cylinder via a latch. The latch includes a locking plate rotatably connected to the opening door. The locking plate has a vertical groove. A locking block is rotatably connected to the inner cylinder. The locking block passes through the vertical groove and is fixed to the locking plate.
[0010] Furthermore, the central column is rotatably connected to both sides of the inner cylinder, and a motor is fixedly installed on the outer side of the inner cylinder corresponding to the position of the central column, and the motor drives the central column to rotate.
[0011] Furthermore, the recycling bin is slidably connected to the corresponding box body by sliding blocks fixed on both sides, and the recycling bin has inclined surfaces on all four sides, and a handle is fixed on one side of the recycling bin.
[0012] Furthermore, a viewing window is fixedly provided on one side of the box at the top of the recycling bin.
[0013] Furthermore, the upper part of the box is provided with a top cover.
[0014] Beneficial effects: This utility model uses a brush inside the inner cylinder to brush off dust from the surface of plastic particles. Combined with the sieving of the impurity discharge hole, it effectively solves the problem that traditional sieving cannot remove dust and other impurities. In addition, with the setting of the adjustment part, the inner cylinder can be driven to tilt alternately, so that the plastic particles roll left and right inside the inner cylinder, preventing the accumulation of plastic particles and making the sieving more thorough. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a front view cross-sectional structural diagram of the present invention; Figure 3 This is a frontal view of the inclined cross-sectional structure of the inner cylinder of this utility model; Figure 4 This is a schematic diagram of the right-side cross-sectional structure of the inner cylinder of this utility model; Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle; Figure 6 This is a top view cross-sectional diagram of the adjusting block and the auxiliary plate of this utility model; Figure 7 This utility model Figure 1Enlarged structural diagram at point B.
[0017] Attached reference numerals: 1. Base; 101. Support leg; 2. Box body; 201. Slide groove; 3. Motor II; 301. Threaded column; 4. Sub-plate; 401. Side groove; 5. Adjusting block; 501. Inner column; 6. Motor box; 601. Motor III; 7. Inner cylinder; 701. Door; 8. Recycling bin; 801. Inclined surface; 802. Slider; 803. Handle; 9. Locking plate; 901. Vertical groove; 10. Fixed 11. Fixed plate; 12. Side plate; 13. Top cover; 14. Motor 1; 15. Viewing window; 16. Locking block; 17. Drain hole; 18. Hinge; 19. Center column; 10. Brush. Detailed Implementation
[0018] like Figure 1 As shown in this specific embodiment, a smart plastic particle screening device includes a base 1 and a support leg 101 at the lower end of the base 1, which provides stable support; a box 2 is fixedly provided at the upper end of the base 1, and a top cover 12 is provided at the upper end of the box 2. The box 2 and the top cover 12 effectively prevent impurities from splashing; a viewing window 14 is fixedly provided on one side of the box 2 at the upper end of the recycling box 8, which facilitates real-time observation of the screening status.
[0019] like Figure 2 , Figure 3 and Figure 6 As shown, the housing 2 has an inner cylinder 7 that can be tilted and adjusted via an adjustment mechanism. The adjustment mechanism includes side plates 11 fixed to the upper and lower ends of both sides of the housing 2. A threaded post 301 is rotatably connected between the side plates 11. The threaded post 301 passes through the adjustment block 5 and is threadedly connected to the adjustment block 5. A second motor 3 is fixed to the upper side plate 11. The second motor 3 drives the threaded post 301 to rotate. The start of the second motor 3 can drive the threaded post 301 to rotate, thereby adjusting the adjustment block 5 to move up and down. Combined with the adjustment block 5 moving away from the threaded post 301... One side of the inner column 501 is provided with an inner column 501. The two sides of the adjusting block 5 are provided with auxiliary plates 4. The two ends of the inner column 501 are respectively locked in the side grooves 401 of the corresponding auxiliary plates 4 and are slidably connected with the side grooves 401. The auxiliary plates 4 are respectively fixedly connected to the motor box 6 and the fixing plate 10, so that the two sides of the adjusting block 5 move up and down in different directions, which can control the inner cylinder 7 to tilt alternately, thereby driving the plastic particles to roll in the inner cylinder 7. This not only avoids the accumulation of plastic particles, but also allows impurities to fall into the recycling box 8 for recycling impurities through the discharge hole 16, making the screening more thorough.
[0020] like Figure 2 , Figure 3 and Figure 5As shown, the inner cylinder 7 is provided with several impurity discharge holes 16, which are slightly smaller than the diameter of the plastic particles. The inner cylinder 7 has brush sections on both sides, each brush section including a central column 18 driven by a motor 13 and a fixed brush 19. The central column 18 is rotatably connected to both sides of the inner cylinder 7. The motor 13 is fixedly installed on the outer side of the inner cylinder 7 at the position corresponding to the central column 18. The motor 13 drives the central column 18 to rotate. The start of the motor 13 can drive the central column 18 to rotate, thereby driving the brush 19 to rotate. The brush 19 can brush the plastic particles in the inner cylinder 7, thereby brushing off the dust on the surface of the plastic particles. Combined with the screening of the impurity discharge holes 16, the dust can fall into the recycling box 8 for recycling, effectively improving the screening effect of impurities.
[0021] like Figure 1 and Figure 2 As shown, a recycling bin 8 is provided at the lower end of the box body 2. The recycling bin 8 is slidably connected to the corresponding groove 201 of the box body 2 by sliding blocks 802 fixed on both sides. The recycling bin 8 has inclined surfaces 801 on all four sides. A handle 803 is fixed on one side of the recycling bin 8. The recycling bin 8 can be quickly pulled out and disassembled by sliding connection between the slider 802 and the groove 201. After the recycling bin 8 for recycling impurities is completed, it can be quickly replaced with the recycling bin 8 for recycling plastic particles. The inclined surface 801 design prevents material residue and simplifies the cleaning process.
[0022] The motor box 6 and the fixing plate 10 are located on both sides of the inner cylinder 7 and are rotatably connected to the inner cylinder 7 via a rotating shaft. The motor box 6 is fixedly equipped with a motor 601. The motor 601 drives the rotating shaft to rotate. The start of the motor 601 can drive the inner cylinder 7 to rotate, so that the door 701 faces upward, realizing the pouring of plastic particles, and the door 701 faces downward, realizing the dumping of plastic particles.
[0023] like Figure 1 , Figure 4 and Figure 7 As shown, the inner cylinder 7 is rotatably connected to the door 701 via the hinge 17. The door 701 is fixed to the inner cylinder 7 by a latch. The latch includes a lock plate 9 rotatably connected to the door 701. The lock plate 9 is provided with a vertical groove 901. A lock block 15 is rotatably connected to the inner cylinder 7. The lock block 15 passes through the vertical groove 901 and is fixed to the lock plate 9. The latch design ensures that the door 701 is firmly fixed and easy to open and close.
[0024] Working principle: First, feed the material by opening the top cover 12. The inner cylinder 7's door 701 is at the top. Pour the plastic particles into the inner cylinder 7 through the door 701. Next, screen for impurities. Starting motor 13 drives the central column 18, which in turn rotates the brush 19, brushing off dust adhering to the surface of the plastic particles. The dust falls through the discharge hole 16 into the lower impurity recovery box 8. Then, starting motors 3 on both sides drives the threaded columns 301 on both sides to rotate relative to each other, thus moving one adjusting block 5 up and the other adjusting block 5 down. This allows for adjustment... The linkage between block 5 and sub-plate 4 causes the inner cylinder 7 to tilt to one side. The tilting direction can be changed by the forward and reverse rotation of motor 3, causing the plastic particles to roll repeatedly. Impurities will continuously fall into the recycling box 8 through the discharge hole 16. After the impurities are recovered, the recycling box 8 can be removed for cleaning by pulling handle 803. The inclined surface 801 of the recycling box 8 is designed to ensure that the dust slides off completely without residue. After screening, replace the special recycling box 8 for recycling plastic particles, open the lock, start motor 3 601, drive the inner cylinder 7 to rotate until the door 701 faces downward, and the plastic particles fall into the recycling box 8 by gravity, thus realizing recycling.
[0025] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.
Claims
1. A smart screening device for plastic particles, comprising a base (1) and support legs (101) at the lower end of the base (1), characterized in that, The upper end of the base (1) is fixedly provided with a box (2), and the box (2) is provided with an inner cylinder (7) that can be tilted and adjusted by an adjustment part. The inner cylinder (7) is provided with several drainage holes (16). The inner cylinder (7) is provided with brush parts on both sides. The brush parts include a central column (18) driven by a motor (13) and a brush (19) fixed around it. The lower end of the box (2) is provided with a recycling box (8).
2. The intelligent screening equipment for plastic particles according to claim 1, characterized in that, The adjustment unit includes side plates (11) fixedly installed at the upper and lower ends of the two sides inside the housing (2). A threaded column (301) is rotatably connected between the side plates (11). The threaded column (301) passes through the adjustment block (5) and is threadedly connected to the adjustment block (5). A motor (3) is fixedly installed on the upper side plate (11). The motor (3) drives the threaded column (301) to rotate.
3. The intelligent screening equipment for plastic particles according to claim 2, characterized in that, The adjusting block (5) has an inner column (501) extending through the side away from the threaded column (301). The adjusting block (5) has a sub-plate (4) on both sides. The two ends of the inner column (501) are respectively locked in the side groove (401) of the corresponding sub-plate (4) and are slidably connected to the side groove (401). The sub-plate (4) is fixedly connected to the motor box (6) and the fixing plate (10) respectively.
4. The intelligent screening equipment for plastic particles according to claim 3, characterized in that, The motor box (6) and the fixing plate (10) are located on both sides of the inner cylinder (7) and are rotatably connected to the inner cylinder (7) through a rotating shaft. The motor box (6) is fixedly equipped with a motor three (601), which drives the rotating shaft to rotate.
5. The intelligent screening equipment for plastic particles according to claim 1, characterized in that, The inner cylinder (7) is rotatably connected to an opening door (701) via a hinge (17). The opening door (701) is fixed to the inner cylinder (7) via a latch. The latch includes a locking plate (9) rotatably connected to the opening door (701). The locking plate (9) is provided with a vertical groove (901). The inner cylinder (7) is rotatably connected to a locking block (15). The locking block (15) passes through the vertical groove (901) and is fixed to the locking plate (9).
6. The intelligent screening equipment for plastic particles according to claim 1, characterized in that, The central column (18) is rotatably connected to both sides of the inner cylinder (7). A motor (13) is fixedly installed on the outer side of the inner cylinder (7) corresponding to the position of the central column (18). The motor (13) drives the central column (18) to rotate.
7. The intelligent screening equipment for plastic particles according to claim 1, characterized in that, The recycling bin (8) is slidably connected to the corresponding box body (2) by means of sliders (802) fixed on both sides. The recycling bin (8) has inclined surfaces (801) on all four sides. A handle (803) is fixed on one side of the recycling bin (8).
8. The intelligent screening equipment for plastic particles according to claim 7, characterized in that, A viewing window (14) is fixedly provided on one side of the box (2) at the top of the recycling bin (8).
9. The intelligent screening equipment for plastic particles according to claim 1, characterized in that, The box (2) is provided with a top cover (12) at the upper end.