White rice grading and screening device with damping structure

By introducing a shock-absorbing structure into the white rice grading and screening equipment, including components such as support legs, shock-absorbing seats, and buffer rings, the problem of high vibration and noise has been solved, achieving the effects of noise reduction and easy screen plate replacement, thereby improving the operational stability of the equipment and environmental quality.

CN223996566UActive Publication Date: 2026-03-17JIANGXI PENGHUI HIGH TECH FOOD IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing rice grading and screening equipment generates excessive noise during vibration processing, affecting the processing environment.

Method used

The design incorporates a shock-absorbing structure, including components such as support legs, shock-absorbing seats, shock-absorbing rods, buffer rings, and shock-absorbing springs, to reduce noise during equipment vibration. The connection design between the screen plate and the mounting base facilitates the disassembly and replacement of the screen plate.

Benefits of technology

This reduces noise, improves the vibration damping effect of the equipment, and facilitates the disassembly and replacement of the screen plate, ensuring stable operation of the screening process.

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Abstract

The utility model relates to the technical field of rice processing, and discloses a white rice grading and screening device with a damping structure, which comprises a screening machine, damping seats are fixedly connected to two sides of the bottom end of the screening machine, supporting legs are arranged below the damping seats, damping rods are fixedly connected to the top ends of the supporting legs, and the damping rods are fixedly connected to the bottom end of the screening machine. The damping rod is embedded in the damping seat, a damping assembly is fixedly connected between the damping seat and the damping rod, a buffer ring is installed outside the damping rod, a feeding port is formed in the top end of the screening machine, and a material distributing plate is installed at the bottom end of the feeding port. According to the white rice grading screening device with the damping structure, the damping efficiency can be achieved through the damping bases and the damping assemblies, damping can be achieved through buffer rings outside damping rods in the vibration process of the screening machine, collision noise can be reduced, and meanwhile the noise generated when a first screening plate, a second screening plate and a third screening plate directly collide with the mounting bases is reduced through damping of damping springs; therefore, the functions of damping and noise reduction are achieved, and the problem of loud vibration noise is solved.
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Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, specifically to a white rice grading and screening device with a shock-absorbing structure. Background Technology

[0002] Rice grading and screening is a key piece of equipment on the rice processing production line. It can grade and screen rice to make the rice grains the same size, remove foreign objects, and improve the quality and appearance of the rice. The rice grading and screening equipment achieves screening through vibration.

[0003] During the vibration processing of common white rice grading and screening equipment, the internal plates and the supporting structure at the bottom of the equipment will collide and make noise. Because the white rice is heavy during grading and screening, the collision cannot be effectively damped, and the excessive collision noise affects the processing environment.

[0004] There is an urgent need for a rice grading and screening device with a shock-absorbing structure to solve the technical defects mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a rice grading and screening device with a shock-absorbing structure to solve the problem of excessive vibration and noise mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a white rice grading and screening device with a shock-absorbing structure, comprising a screening machine, shock-absorbing seats fixedly connected to both sides of the bottom end of the screening machine, support legs provided below the shock-absorbing seats, shock-absorbing rods fixedly connected to the top ends of the support legs, the shock-absorbing rods being embedded inside the shock-absorbing seats, a shock-absorbing assembly fixedly connected between the shock-absorbing seats and the shock-absorbing rods, a buffer ring installed on the outside of the shock-absorbing rods, a feed inlet installed at the top end of the screening machine, and a... Equipped with a material distribution plate, the screening machine has six sets of discharge ports on both sides and a discharge port at the middle of the bottom. Inside the screening machine, there are six sets of mounting seats on both sides. Inside the screening machine, from top to bottom, there are a first screen plate, a second screen plate, and a third screen plate. The bottom of the first screen plate, the second screen plate, and the third screen plate are all fixedly connected to a bracket. The two sides of the bracket are fixedly connected to mounting blocks. Shock-absorbing springs are installed on the outside of the mounting blocks. Protective pads are installed at the bottom of the support legs.

[0007] As a further technical solution of this utility model, the mesh size of the first sieve plate, the second sieve plate and the third sieve plate are successively increased.

[0008] As a further technical solution of this utility model, the inner diameter of the shock absorber seat is larger than the outer diameter of the shock absorber rod, and the shock absorber seat can be fitted onto the outside of the shock absorber rod.

[0009] As a further technical solution of this utility model, the shock absorption component includes a limiting telescopic frame and a spring, with the bottom end of the shock absorption spring fitting against the top end of the mounting base.

[0010] As a further technical solution of this utility model, the mounting base is provided with a mounting slot inside, the mounting block is "L" shaped, and the front end of the mounting base is movably connected to a limit baffle.

[0011] As a further technical solution of this utility model, the mounting block is embedded inside the mounting slot, and the limiting baffle is disposed at the front end of the mounting block.

[0012] As a further technical solution of this utility model, the first sieve plate, the second sieve plate and the third sieve plate are arc-shaped, and a handle is installed at the front end of the bracket.

[0013] As a further technical solution of this utility model, the material distribution plate is arc-shaped, and the bottom end of the material distribution plate is uniformly provided with material distribution holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the white rice grading and screening device with shock absorption structure not only realizes the function of shock absorption and noise reduction, and the function of easy disassembly and replacement, but also the function of easy uniform screening.

[0015] (1) By setting up support legs, shock absorbers, shock absorbers, shock absorbers, shock absorbers, buffer rings and shock absorbers, the shock absorbers on the support legs can achieve shock absorption efficiency during the vibration screening process of the screening machine. During the vibration of the screening machine, the shock absorbers move outside the shock absorbers, and the buffer ring outside the shock absorbers can reduce the impact noise. At the same time, the areas where the first screen plate, the second screen plate and the third screen plate are installed with the mounting base are damped by the shock absorbers. The shock absorbers reduce the possibility of the first screen plate, the second screen plate and the third screen plate directly colliding with the mounting base, thereby achieving the function of shock absorption and noise reduction.

[0016] (2) By setting up a mounting base, bracket, handle, limit baffle, mounting slot and mounting block, the first sieve plate, the second sieve plate and the third sieve plate can be used to classify and screen white rice. The first sieve plate, the second sieve plate and the third sieve plate can be removed, replaced and cleaned. When replacing, first rotate and move the limit baffle, then hold the handle and pull the bracket forward to move the sieve plate. The mounting block on the bracket can be completely removed from the mounting slot. This structure realizes the function of easy disassembly and replacement.

[0017] (3) By setting up a material distribution plate, a feed inlet and a material distribution hole, white rice can enter the interior of the screening machine from the feed inlet. The white rice enters the interior of the material distribution plate along the feed inlet. The material distribution holes evenly distributed at the bottom of the material distribution plate facilitate the uniform feeding of white rice. After being screened by the first screen plate, the second screen plate and the third screen plate, the white rice can be discharged in categories. This structure realizes the function of facilitating uniform sieving. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a front view cross-sectional structural diagram of the support leg of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a bottom view of the material distribution plate structure of this utility model.

[0022] In the diagram: 1. Support leg; 2. Shock absorber rod; 3. Shock absorber seat; 4. Screening machine; 5. Discharge port; 6. Mounting seat; 7. First screen plate; 8. Dividing plate; 9. Feed inlet; 10. Bracket; 11. Handle; 12. Second screen plate; 13. Third screen plate; 14. Discharge port; 15. Shock absorber assembly; 16. Protective pad; 17. Dividing hole; 18. Buffer ring; 19. Limiting baffle; 20. Mounting slot; 21. Mounting block; 22. Shock absorber spring. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4This utility model provides an embodiment of a white rice grading and screening device with a shock-absorbing structure, comprising a screening machine 4, shock-absorbing seats 3 fixedly connected to both sides of the bottom end of the screening machine 4, support legs 1 provided below the shock-absorbing seats 3, shock-absorbing rods 2 fixedly connected to the top of the support legs 1, the shock-absorbing rods 2 being embedded inside the shock-absorbing seats 3, a shock-absorbing assembly 15 fixedly connected between the shock-absorbing seats 3 and the shock-absorbing rods 2, a buffer ring 18 installed on the outside of the shock-absorbing rods 2, a feed inlet 9 installed at the top of the screening machine 4, and a separating plate 8 installed at the bottom end of the feed inlet 9. Six sets of discharge ports 5 are installed on both sides of the screen 4. A discharge port 14 is installed at the middle position of the bottom of the screen 4. Six sets of mounting seats 6 are installed on both sides inside the screen 4. The first screen plate 7, the second screen plate 12 and the third screen plate 13 are installed in the screen 4 from top to bottom. The bottom of the first screen plate 7, the second screen plate 12 and the third screen plate 13 are all fixedly connected to the bracket 10. Mounting blocks 21 are fixedly connected on both sides of the bracket 10. Shock-absorbing springs 22 are installed on the outside of the mounting blocks 21. Protective pads 16 are installed at the bottom of the support leg 1.

[0025] The mesh size of the first screen plate 7, the second screen plate 12 and the third screen plate 13 increases sequentially. The inner diameter of the shock absorber 3 is larger than the outer diameter of the shock absorber rod 2. The shock absorber 3 can be fitted onto the outside of the shock absorber rod 2. The shock absorber assembly 15 includes a limiting telescopic frame and a spring. The bottom end of the shock absorber spring 22 is in contact with the top end of the mounting base 6.

[0026] Specifically, such as Figure 1 and Figure 2 As shown, during the vibration screening process of the screening machine 4, the shock-absorbing seat 3 and the shock-absorbing component 15 on the support leg 1 can achieve shock absorption efficiency. During the vibration of the screening machine 4, the shock-absorbing seat 3 moves outside the shock-absorbing rod 2. The buffer ring 18 outside the shock-absorbing rod 2 can achieve shock absorption and reduce collision noise. At the same time, the area where the first screen plate 7, the second screen plate 12 and the third screen plate 13 are installed with the mounting base 6 is damped by the shock-absorbing spring 22. The shock-absorbing spring 22 reduces the noise of the collision between the first screen plate 7, the second screen plate 12 and the third screen plate 13.

[0027] The mounting base 6 has an internal mounting slot 20, and the mounting block 21 is L-shaped. The front end of the mounting base 6 is movably connected to a limit baffle 19. The mounting block 21 is embedded in the mounting slot 20, and the limit baffle 19 is located at the front end of the mounting block 21.

[0028] Specifically, such as Figure 1 and Figure 3 As shown, the first screen plate 7, the second screen plate 12 and the third screen plate 13 can be removed for replacement and cleaning. When replacing, first rotate and move the limiting baffle 19, then hold the handle 11 and pull the bracket 10 forward to move the screen plate. The mounting block 21 on the bracket 10 can be completely removed from the mounting slot 20.

[0029] The first screen plate 7, the second screen plate 12 and the third screen plate 13 are arc-shaped. The front end of the support 10 is equipped with a handle 11. The material distribution plate 8 is arc-shaped. The bottom end of the material distribution plate 8 is evenly provided with material distribution holes 17.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, white rice can enter the interior of the screening machine 4 through the feed inlet 9. The white rice enters the interior of the dividing plate 8 through the feed inlet 9. The dividing holes 17 evenly distributed at the bottom of the dividing plate 8 facilitate the uniform feeding of white rice. After being screened by the first screen plate 7, the second screen plate 12 and the third screen plate 13, the white rice can be discharged in categories.

[0031] Working Principle: In use, the rice to be sieved is fed into the sieve 4 through the inlet 9. The rice enters the distribution plate 8 through the inlet 9. The evenly distributed distribution holes 17 at the bottom of the distribution plate 8 facilitate uniform feeding of the rice. After being sieved through the first sieve plate 7, the second sieve plate 12, and the third sieve plate 13, the rice is discharged in categories. During the vibration sieve process, the shock-absorbing seats 3 and shock-absorbing components 15 on the support legs 1 achieve vibration reduction efficiency. During the vibration of the sieve 4, the shock-absorbing seats 3 move outside the shock-absorbing rod 2, and the buffer ring 18 outside the shock-absorbing rod 2 can... The structure achieves shock absorption and reduces collision noise. At the same time, the areas where the first screen plate 7, the second screen plate 12, and the third screen plate 13 are installed with the mounting base 6 are damped by shock-absorbing springs 22. The shock-absorbing springs 22 lower the first screen plate 7, the second screen plate 12, and the third screen plate 13. The first screen plate 7, the second screen plate 12, and the third screen plate 13 can be removed for replacement and cleaning. When replacing, first rotate and move the limiting baffle 19, then hold the handle 11 and pull the bracket 10 forward to move the screen plate. The mounting block 21 on the bracket 10 can be completely removed from the mounting slot 20. This structure realizes the functions of easy shock absorption and screening.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A white rice grading and screening device with a shock absorbing structure, comprising a screening machine (4), characterized in that: The bottom end of the screen separator (4) is fixedly connected with damping seats (3), the lower part of the damping seat (3) is provided with supporting legs (1), the top end of the supporting leg (1) is fixedly connected with damping rods (2), the damping rod (2) is embedded in the inside of the damping seat (3), the damping seat (3) and the damping rod (2) are fixedly connected with damping assemblies (15), the outside of the damping rod (2) is provided with a buffer ring (18), the top end of the screen separator (4) is provided with a feeding port (9), the bottom end of the feeding port (9) is provided with a distribution plate (8), the two sides of the screen separator (4) are provided with six groups of discharge ports (5), the middle position of the bottom end of the screen separator (4) is provided with a discharge port (14), the two sides of the inside of the screen separator (4) are provided with six groups of mounting seats (6), the inside of the screen separator (4) is sequentially provided from top to bottom with a first screen plate (7), a second screen plate (12) and a third screen plate (13), the bottom end of the first screen plate (7), the second screen plate (12) and the third screen plate (13) are fixedly connected with supports (10), the two sides of the support (10) are fixedly connected with mounting clamping blocks (21), the outside of the mounting clamping block (21) is provided with damping springs (22), and the bottom end of the supporting leg (1) is provided with a protective pad (16).

2. The white rice grading and screening device with a damping structure according to claim 1, characterized in that: The mesh of the first screen plate (7), the second screen plate (12) and the third screen plate (13) increases in turn.

3. The white rice grading and sorting apparatus having a damping structure according to claim 1, wherein: The diameter of the inside of the damping seat (3) is greater than the diameter of the outside of the damping rod (2), and the damping seat (3) can be sleeved on the outside of the damping rod (2).

4. The white rice grading and sorting apparatus having a damping structure according to claim 1, wherein: The damping assembly (15) comprises a limiting telescopic support and a spring, and the bottom end of the damping spring (22) is attached to the top end of the mounting seat (6).

5. The white rice grading and sorting apparatus having a damping structure according to claim 1, wherein: The inside of the mounting seat (6) is provided with a mounting clamping groove (20), the mounting clamping block (21) is in the shape of "L", and the front end of the mounting seat (6) is movably connected with a limiting baffle (19).

6. The white rice grading and sorting apparatus having a damping structure according to claim 5, wherein: The mounting clamping block (21) is embedded in the inside of the mounting clamping groove (20), and the limiting baffle (19) is arranged at the front end of the mounting clamping block (21).

7. The white rice grading and sorting apparatus having a damping structure according to claim 1, wherein: The first screen plate (7), the second screen plate (12) and the third screen plate (13) are in the shape of a circular arc, and the front end of the support (10) is provided with a handle (11).

8. The white rice grading and sorting apparatus having a damping structure according to claim 1, wherein: The distribution plate (8) is in the shape of a circular arc, and the bottom end of the distribution plate (8) is uniformly provided with distribution holes (17).