Centrifugal plastic powder classifying and screening device
By designing a centrifugal plastic powder grading and screening device with a support plate, a fixed frame, and a drive assembly, the device utilizes the centrifugal force of the motor-driven tilting of the screen cylinder and the inner and outer screens to solve the problem of increased labor intensity caused by manual material removal. This achieves automated material discharge and grading screening, improving screening efficiency and equipment convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU LANDON PLASTIC POWDER CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-12
AI Technical Summary
Existing centrifugal plastic powder grading and screening equipment requires manual removal of materials during operation, which increases the labor intensity of workers and easily leads to material residue, affecting the screening effect and the next use of the equipment.
A centrifugal plastic powder grading and screening device was designed, which includes a support plate, a fixed frame, a screening component and a drive component. The screen cylinder is tilted by a motor, and the centrifugal force of the inner and outer screens is combined to achieve automated material discharge and grading screening.
It achieves automated material discharge and grading screening, reduces manual operation, and improves screening efficiency and ease of use of the equipment.
Smart Images
Figure CN224346316U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of screening equipment technology, and more specifically, to a centrifugal plastic powder grading and screening device. Background Technology
[0002] In the plastics processing industry, the grading and screening of plastic powder is a crucial process. Centrifugal plastic powder grading and screening equipment is widely used in the industry due to its high efficiency and precision screening capabilities. However, existing centrifugal plastic powder grading and screening equipment still has some shortcomings in actual operation.
[0003] Traditional screening equipment typically uses horizontally positioned screening cylinders. After screening, the material needs to be manually removed from the screening cylinders. This not only increases the labor intensity of workers, but also makes it easy for material residue to remain during manual operation, affecting the screening effect and the next use of the equipment.
[0004] To address the aforementioned problems, this application provides a centrifugal plastic powder grading and screening device. Utility Model Content
[0005] One objective of this application is to provide a centrifugal plastic powder grading and screening device, comprising a support plate, with support rods fixedly connected to the four corners of the bottom end face of the support plate, upright plates symmetrically fixedly connected to the top left side of the support plate, a fixed frame rotatably connected between the two upright plates, a screening component rotatably connected to the fixed frame, a first motor for driving the screening component to rotate fixedly connected to the outside of the fixed frame, connecting blocks symmetrically fixedly connected to the outside of the fixed frame, incomplete annular sleeves symmetrically fixedly connected to the top right side of the support plate, an incomplete annular plate rotatably connected inside the incomplete annular sleeves, rotating grooves being provided on opposite sides of the two incomplete annular sleeves, sliding grooves and limiting grooves being provided on the inner and outer walls of the incomplete annular sleeves respectively, a matching rotating plate being provided inside the rotating grooves, a matching rack plate and limiting plate being provided inside the sliding grooves and limiting grooves respectively, a limiting frame being fixedly connected to the outside of the incomplete annular sleeves, a rotating shaft being rotatably connected inside the limiting frame, and a first gear and a second gear being fixedly connected to the outside of the rotating shaft, and a driving component being provided on the top of the support plate.
[0006] Furthermore, the drive assembly includes a toothed block and two support blocks. The top of the support plate is fixedly connected to two support blocks, and a lead screw is rotatably connected between the two support blocks. A second motor for driving the lead screw to rotate is fixedly connected to the outer side of one of the support blocks. A movable plate is threaded onto the outer side of the lead screw, and the movable plate is slidably connected to the top surface of the support plate. The top of the support plate is symmetrically slidably connected to toothed blocks, and the two ends of the movable plate are fixedly connected to the two toothed blocks respectively.
[0007] Furthermore, sliding grooves are symmetrically formed at the top of the support plate. A sliding plate adapted thereto is slidably connected inside the sliding groove, and the sliding plate is arranged in a "convex" shape structure. The tooth block is fixedly connected to the top of the sliding plate.
[0008] Furthermore, the first gear and the tooth block are meshed and drivingly connected, and the rack plate and the second gear are meshed and drivingly connected.
[0009] Furthermore, the connecting block is fixedly connected to the inner surface of the rotating plate, and the rotating plate, the incomplete annular plate, the limiting plate and the rack plate are integrally formed.
[0010] Furthermore, two fixing blocks are fixedly connected to the top of the fixing frame, and a fixing ring is fixedly connected to the inner wall of the fixing block. An annular sliding groove is formed in the inner wall of the fixing ring, and an annular sliding block is rotatably connected inside the annular sliding groove.
[0011] Furthermore, the screening assembly includes a screening cylinder fixedly connected to the inner walls of the two annular sliding blocks. An inner screen and an outer screen are respectively fixedly connected inside the screening cylinder from the inside to the outside. The output end of the first motor is fixedly connected to the screening cylinder. A circular plate, a first annular plate and a second annular plate are arranged at the left end of the screening cylinder.
[0012] The beneficial effects of this application are as follows:
[0013] Control the second motor to work to drive the rotation of the screw rod. The rotation of the screw rod drives the movement of the moving plate. The movement of the moving plate带动 the movement of the two tooth blocks. The movement of the tooth blocks drives the rotation of the first gear. The rotation of the first gear带动 the rotation of the rotating shaft and the second gear. The rotation of the second gear drives the rotation of the rack plate. The rotation of the rack plate带动 the rotation of the incomplete annular plate inside the incomplete annular sleeve. The rotation of the incomplete annular plate带动 the rotation of the limiting plate and the rotating plate respectively inside the limiting groove and the rotating groove. The rotation of the rotating plate带动 the rotation of the connecting block. The rotation of the connecting block带动 the rotation of the fixing frame, so that the screening cylinder is in an inclined state, which is convenient for the plastic powder to directly slide and discharge. When discharging the plastic powder, unscrew the circular plate, the first annular plate and the second annular plate one by one. After pouring out the plastic powder inside the inner screen, pour out the plastic powder inside the outer screen, and finally pour out the plastic powder inside the screening cylinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings are used to provide a further understanding of this application, and constitute a part of the specification. Together with the embodiments of this application, they are used to explain this application and do not constitute a limitation to this application.
[0015] In the drawings:
[0016] Figure 1 is the overall structural schematic diagram of this application;
[0017] Figure 2For the purposes of this application Figure 1 Another perspective structural diagram;
[0018] Figure 3 This is a cross-sectional view of this application.
[0019] Explanation of the labels in the diagram:
[0020] 1. Support plate; 2. Sliding groove; 3. Incomplete annular sleeve; 4. Fixing frame; 5. First motor; 6. Second motor; 7. Limiting plate; 8. Incomplete annular plate; 9. Rack plate; 10. Limiting groove; 11. Limiting frame; 12. Tooth block; 13. Moving plate; 14. Support rod; 15. Fixing ring; 16. Screen cylinder; 17. Support block; 18. Vertical plate; 19. Rotating plate; 20. First gear; 21. Second gear; 22. Rotating shaft; 23. Rotating groove; 24. Connecting block; 25. Sliding groove; 26. Outer screen; 27. Inner screen; 28. Lead screw. Detailed Implementation
[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0022] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0024] Example:
[0025] Please see Figure 1 , Figure 2 and Figure 3 This application discloses a centrifugal plastic powder grading and screening device, including a support plate 1. Support rods 14 are fixedly connected to the four corners of the bottom surface of the support plate 1. Vertical plates 18 are symmetrically fixedly connected to the top left side of the support plate 1. Through holes are opened on the vertical plates 18, and round rods are rotatably inserted into the through holes. A fixing frame 4 is fixedly connected between the two round rods. Limiting round blocks are provided on the surface of the vertical plates 18 and fixedly connected to the round rods. A fixing frame 4 is rotatably connected between the two vertical plates 18. A screening component is rotatably connected to the fixing frame 4. A first motor 5 for driving the screening component to rotate is fixedly connected to the outside of the fixing frame 4. Connecting blocks 24 are symmetrically fixedly connected to the outside of the fixing frame 4. Incomplete annular sleeves 3 are symmetrically fixedly connected to the top right side of the support plate 1. The center of the incomplete annular sleeve 3 is on the same horizontal line as the center of the round rod. Incomplete annular plates 8 are rotatably connected inside the incomplete annular sleeves 3. The opposite sides of the two incomplete annular sleeves 3 are... The incomplete annular sleeve 3 has a rotating groove 23. The inner and outer walls of the sleeve 3 are respectively provided with a sliding groove 25 and a limiting groove 10. A matching rotating plate 19 is provided inside the rotating groove 23. A matching rack plate 9 and a limiting plate 7 are respectively provided inside the sliding groove 25 and the limiting groove 10. A limiting frame 11 is fixedly connected to the outer side of the incomplete annular sleeve 3. A rotating shaft 22 is rotatably connected inside the limiting frame 11. A first gear 20 and a second gear 21 are fixedly connected to the outer side of the rotating shaft 22. A driving assembly is provided on the top of the support plate 1. The rack plate 9 rotates to drive the incomplete annular plate 8 to rotate inside the incomplete annular sleeve 3. The rotation of the incomplete annular plate 8 drives the limiting plate 7 and the rotating plate 19 to rotate inside the limiting groove 10 and the rotating groove 23, respectively. The rotation of the rotating plate 19 drives the connecting block 24 to rotate. The rotation of the connecting block 24 drives the fixing frame 4 to rotate, thereby making the screen cylinder 16 tilted, which facilitates the direct pouring of plastic powder.
[0026] Please see Figure 1 , Figure 2 and Figure 3The drive assembly includes a toothed block 12 and two support blocks 17. A fixing frame 4 is set on the top of the two support blocks 17. Two support blocks 17 are fixedly connected to the top of the support plate 1. A lead screw 28 is rotatably connected between the two support blocks 17. A second motor 6 for driving the lead screw 28 to rotate is fixedly connected to the outside of one of the support blocks 17. A moving plate 13 is threaded onto the outside of the lead screw 28 and is slidably connected to the top surface of the support plate 1. The toothed blocks 12 are symmetrically slidably connected to the top of the support plate 1. The two ends of the moving plate 13 are fixedly connected to the two toothed blocks 12 respectively. The first gear 20 and the toothed blocks 12 are meshed and connected. The rack plate 9 and the second gear 21 are meshed and connected. The second motor 6 is controlled to drive the lead screw 28 to rotate. The rotation of the lead screw 28 drives the moving plate 13 to move. The movement of the moving plate 13 drives the two toothed blocks 12 to move. The movement of the toothed blocks 12 drives the first gear 20 to rotate. The rotation of the first gear 20 drives the rotating shaft 22 and the second gear 21 to rotate. The rotation of the second gear 21 drives the rack plate 9 to rotate.
[0027] Please see Figure 1 and Figure 2 The top of the support plate 1 is symmetrically provided with sliding grooves 2. The sliding grooves 2 are slidably connected to a matching sliding plate, and the sliding plate is set in a "convex" shape. The length of the sliding plate is equal to the length of the toothed block 12. The cooperation between the sliding plate and the sliding groove 2 limits the toothed block 12 and improves the stability of the toothed block 12 when it moves. The toothed block 12 is fixedly connected to the top of the sliding plate. The connecting block 24 is fixedly connected to the inner surface of the rotating plate 19. The rotating plate 19, the incomplete annular plate 8, the limiting plate 7 and the toothed plate 9 are integrally formed and pass through the support plate 1 and extend to the bottom of the support plate 1.
[0028] Please see Figure 1 and Figure 2 The top of the fixed frame 4 is fixedly connected to two fixed blocks, and the inner wall of the fixed blocks is fixedly connected to a fixed ring 15. The inner wall of the fixed ring 15 is provided with an annular groove, and an annular slider is rotatably connected inside the annular groove. The screen cylinder 16 is rotatably installed inside the fixed ring 15 through the cooperation of the annular slider and the annular groove.
[0029] Please see Figure 1 , Figure 2 and Figure 3The screening assembly includes a screen cylinder 16 fixedly connected to the inner walls of two annular sliders. An inner screen 27 and an outer screen 26 are fixedly connected to the inside of the screen cylinder 16 from the inside out. The first motor 5 is controlled to rotate the screen cylinder 16, which in turn rotates the inner and outer screens 27. This causes the plastic powder inside the inner screen 27 to be screened under centrifugal force. Larger particles of plastic powder are retained inside the inner screen 27, while medium and smaller particles fall through the mesh of the inner screen 27 into the outer screen 26. Medium-sized particles are retained. Inside the outer screen 26, smaller plastic powder particles fall into the screen cylinder 16 through the mesh of the outer screen 26, thereby achieving the grading and screening of the plastic powder. The output end of the first motor 5 is fixedly connected to the screen cylinder 16. The left end of the screen cylinder 16 is provided with a circular plate, a first ring plate and a second ring plate. The circular plate, the first ring plate and the second ring plate are arranged sequentially from the inside to the outside. The circular plate, the first ring plate and the second ring plate are all threadedly connected to the left end of the screen cylinder 16. The surface of the circular plate and the surface of the first ring plate and the second ring plate are all fixedly connected with handles, which can be used to easily screw the circular plate, the first ring plate and the second ring plate.
[0030] The implementation principle of this application embodiment is as follows: the circular plate is unscrewed using the handle, and the plastic powder to be screened is placed into the inner screen 27. Then the circular plate is screwed onto the screen cylinder 16, and the first motor 5 is controlled to work to drive the screen cylinder 16 to rotate. The rotation of the screen cylinder 16 drives the inner screen 27 and the outer screen 26 to rotate, thereby causing the plastic powder located inside the inner screen 27 to be screened under centrifugal force. At this time, the larger plastic powder particles are screened and retained inside the inner screen 27, while the medium and smaller plastic powder particles fall into the outer screen 26 through the mesh of the inner screen 27. The medium plastic powder particles are screened and retained inside the outer screen 26, while the smaller plastic powder particles fall into the screen cylinder 16 through the mesh of the outer screen 26, thereby realizing the grading and screening of the plastic powder.
[0031] The second motor 6 drives the lead screw 28 to rotate. The rotation of the lead screw 28 drives the moving plate 13 to move. The movement of the moving plate 13 drives the two toothed blocks 12 to move. The movement of the toothed blocks 12 drives the first gear 20 to rotate. The rotation of the first gear 20 drives the rotating shaft 22 and the second gear 21 to rotate. The rotation of the second gear 21 drives the rack plate 9 to rotate. The rotation of the rack plate 9 drives the incomplete annular plate 8 to rotate inside the incomplete annular sleeve 3. The rotation of the incomplete annular plate 8 drives the limiting plate 7 and the rotating plate 19 to rotate inside the limiting groove 10 and the rotating groove 23, respectively. The rotation of the rotating plate 19 drives the connecting block 24 to rotate. The rotation of the connecting block 24 drives the fixing frame 4 to rotate, thereby making the screen cylinder 16 tilted, so that the plastic powder can slide directly out. When discharging the plastic powder, the circular plate, the first ring plate and the second ring plate are unscrewed one by one. After pouring out the plastic powder inside the inner screen 27, the plastic powder inside the outer screen 26 is poured out. Finally, the plastic powder inside the screen cylinder 16 is poured out.
[0032] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and application concept of this application, should be included within the scope of protection of this application.
Claims
1. A centrifugal plastic powder grading and screening device, comprising a support plate (1), characterized in that: Support rods (14) are fixedly connected to the four corners of the bottom end face of the support plate (1). Vertical plates (18) are symmetrically fixedly connected to the top left side of the support plate (1). A fixed frame (4) is rotatably connected between the two vertical plates (18). A screening component is rotatably connected to the fixed frame (4). A first motor (5) for driving the screening component to rotate is fixedly connected to the outside of the fixed frame (4). Connecting blocks (24) are symmetrically fixedly connected to the outside of the fixed frame (4). Incomplete annular sleeves (3) are symmetrically fixedly connected to the top right side of the support plate (1). Incomplete annular plates (8) are rotatably connected inside the incomplete annular sleeves (3). The opposite sides of the sleeve (3) are provided with rotating grooves (23). The inner and outer walls of the incomplete annular sleeve (3) are provided with sliding grooves (25) and limiting grooves (10). The rotating groove (23) is provided with a matching rotating plate (19). The sliding groove (25) and the limiting groove (10) are provided with matching rack plates (9) and limiting plates (7). The outer side of the incomplete annular sleeve (3) is fixedly connected to a limiting frame (11). The limiting frame (11) is rotatably connected to a rotating shaft (22). The outer side of the rotating shaft (22) is fixedly connected to a first gear (20) and a second gear (21). The top of the support plate (1) is provided with a driving assembly.
2. The centrifugal plastic powder grading and screening equipment according to claim 1, characterized in that: The drive assembly includes a toothed block (12) and two support blocks (17). The top of the support plate (1) is fixedly connected to two support blocks (17). A lead screw (28) is rotatably connected between the two support blocks (17). A second motor (6) for driving the lead screw (28) to rotate is fixedly connected to the outside of one of the support blocks (17). A movable plate (13) is threaded onto the outside of the lead screw (28), and the movable plate (13) is slidably connected to the top surface of the support plate (1). The top of the support plate (1) is symmetrically slidably connected to the toothed block (12). The two ends of the movable plate (13) are fixedly connected to the two toothed blocks (12) respectively.
3. The centrifugal plastic powder grading and screening equipment according to claim 2, characterized in that: The top of the support plate (1) is symmetrically provided with sliding grooves (2), and a matching sliding plate is slidably connected inside the sliding groove (2). The sliding plate is arranged in a "convex" shape, and the toothed block (12) is fixedly connected to the top of the sliding plate.
4. The centrifugal plastic powder grading and screening equipment according to claim 1, characterized in that: The first gear (20) and the tooth block (12) are meshed and connected, and the rack plate (9) and the second gear (21) are meshed and connected.
5. The centrifugal plastic powder grading and screening equipment according to claim 1, characterized in that: The connecting block (24) is fixedly connected to the inner surface of the rotating plate (19), and the rotating plate (19), the incomplete annular plate (8), the limiting plate (7) and the rack plate (9) are integrally formed.
6. The centrifugal plastic powder grading and screening equipment according to claim 1, characterized in that: The top of the fixed frame (4) is fixedly connected to two fixed blocks, and the inner wall of the fixed blocks is fixedly connected to a fixed ring (15). The inner wall of the fixed ring (15) is provided with an annular groove, and an annular slider is rotatably connected inside the annular groove.
7. The centrifugal plastic powder grading and screening equipment according to claim 1, characterized in that: The screening assembly includes a screen cylinder (16) fixedly connected to the inner wall of two annular sliders. An inner screen (27) and an outer screen (26) are fixedly connected from the inside to the outside of the screen cylinder (16). The output end of the first motor (5) is fixedly connected to the screen cylinder (16). A circular plate, a first annular plate and a second annular plate are provided on the left end of the screen cylinder (16).