Broken rice grading device for rice processing
By designing a vibration screening mechanism and material separating components, the problems of broken rice accumulation and crushing were solved, achieving efficient grading and cleaning, and improving the grading efficiency and service life of the rice processing equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANGYANG DAFA RICE IND CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-28
AI Technical Summary
During the rice grading process, broken rice is prone to accumulating, breaking, sticking together, and clumping, resulting in low grading efficiency and difficulty in cleaning the equipment, which affects the quality of broken rice and the lifespan of the equipment.
The vibrating screening mechanism includes a uniform material distribution component and a material distribution component. The screen is cleaned by scrapers and brushes. The design of the vibrating component and the material distribution plate ensures that the broken rice is evenly distributed and avoids accumulation. The eccentric roller drives the box to vibrate to accelerate the grading.
It effectively avoids broken and sticky rice, improves grading efficiency, ensures clean screens, extends equipment lifespan, and enhances the quality and utilization rate of broken rice.
Smart Images

Figure CN224167966U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rice processing broken rice grading technology, specifically a rice processing broken rice grading device. Background Technology
[0002] Different consumers and food processing companies have different requirements for the quality and uses of rice. Graded broken rice can meet different market demands based on grain size and integrity. Smaller broken rice grains can be used to make rice noodles, rice milk, rice wine, etc., while larger grains can be used as raw materials for foods where grain integrity is less critical, such as puffed foods and breakfast cereals. This improves the overall utilization rate of broken rice and meets diverse market demands. Grading allows broken rice to be classified according to uniform standards, ensuring high consistency in grain size and appearance within the same grade.
[0003] When grading broken rice, the rice tends to pile up as it enters through the feed inlet. Under the influence of gravity, the broken rice at the bottom layer experiences greater pressure, which can easily lead to further breakage or cracking. Moreover, during subsequent handling and conveying, these pressure-damaged broken rice grains are more likely to break again, reducing their quality and utilization value. At the same time, the piled-up broken rice may stick together and clump in the grading equipment, adhering to the screen, increasing the difficulty and frequency of equipment cleaning. If not cleaned in time, the remaining broken rice will deteriorate, affecting the normal operation of subsequent grading work, and may also cause corrosion and damage to the equipment. Therefore, this application proposes a rice processing broken rice grading device. Utility Model Content
[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a rice processing broken rice grading device, which effectively solves the problem of broken rice accumulating together in the rice processing broken rice grading device.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a rice processing broken rice grading device, comprising a box and a vibrating screening mechanism. An inlet is fixedly installed at the upper end of the box, penetrating the box. The vibrating screening mechanism includes two sieve plates fixedly installed inside the box, the two sieve plates being arranged vertically opposite each other. A first motor is fixedly installed inside the box, a rotating rod is fixedly installed at the output end of the first motor, and a material leveling component is fixedly installed at the bottom of the rotating rod. The rotating rod passes through one of the sieve plates and is rotatably connected to it. Multiple fixed columns are fixedly installed at the bottom of the box, and mounting frames are slidably connected to the fixed columns. The fixed columns slide against the inner wall of the mounting frames. Mounting components are fixedly connected to the multiple fixed columns. Vibrating components that abut against the mounting components are fixedly installed on the mounting frames. A fixed frame, opposite to the inlet, is fixedly installed inside the box, and a material separating component is fixedly installed inside the fixed frame. Multiple sliding doors, cooperating with the sieve plates, are hinged to the box.
[0006] Preferably, the material leveling component includes a fixed block sleeved on a rotating rod, a speed reducer fixedly installed on the rotating rod, the fixed block being fixedly connected to the rotating rod, a plurality of scrapers fixedly installed on the fixed block, and a plurality of brush bristles abutting against the screen plate fixedly installed at the bottom of the scrapers.
[0007] Preferably, the mounting component includes a movable plate and two connecting columns. The connecting columns are fixedly connected to the fixed columns and located between the two fixed columns. The movable plate is fixedly connected to the connecting columns and located between the two connecting columns. The movable plate can slide against the vibrating component.
[0008] Preferably, the vibrating element includes two upright plates fixedly installed on the upper end of the mounting frame, one of which is fixedly installed with a second motor, and the output end of the second motor is fixedly installed with a transmission rod.
[0009] Preferably, one end of the transmission rod is rotatably connected to another vertical plate, and an eccentric roller fixedly connected to the transmission rod is sleeved on the transmission rod, with the eccentric roller sliding against the moving plate.
[0010] Preferably, the material distribution component includes multiple connecting blocks fixedly installed in a fixed frame, and a material distribution plate that slides and abuts against the connecting blocks. The material distribution plate is provided with two material distribution grooves that are opposite to the inlet.
[0011] Preferably, a movable rod is fixedly installed at one end of the material distribution plate, which passes through the fixed frame. The movable rod passes through the fixed frame, and a sliding groove is provided on the box body. An I-shaped groove is provided in the sliding groove to cooperate with it. An I-shaped block is fixedly installed at one end of the movable rod, which slides against the inner wall of the I-shaped groove. A lever is fixedly installed on one side of the I-shaped block.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a vibrating screening mechanism, the cooperation between the material distribution component and the material equalization component can disperse the rice entering from the feed inlet to various positions of the screen plate, avoiding the accumulation of broken rice on the screen plate and ensuring that the broken rice will not be broken again. The material equalization component can clean out the broken rice remaining on the screen, preventing the broken rice from accumulating and deteriorating inside the screen and ensuring the normal use of the screen. At the same time, the vibrating component can quickly grade the broken rice, improving the efficiency of broken rice grading. Attached Figure Description
[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0014] In the attached diagram:
[0015] Figure 1 This is a schematic diagram of the structure of the rice processing broken rice grading device of this utility model;
[0016] Figure 2 This is a cross-sectional view of the rice processing and broken rice grading device of this utility model;
[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0018] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;
[0019] In the diagram: 1. Box body; 2. Mounting frame; 3. Feed inlet; 4. Sliding door; 5. Vertical plate; 6. Second motor; 7. Eccentric roller; 8. Transmission rod; 9. Fixed column; 10. Mounting component; 11. First motor; 12. Screen plate; 13. Fixed block; 14. Rotating rod; 15. Scraper; 16. Brush bristles; 17. Reducer; 18. Slide groove; 19. Toggle lever; 20. Moving rod; 21. Material distribution plate; 22. Fixed frame; 23. Connecting block; 24. Material distribution trough; 25. I-shaped trough; 26. I-shaped block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] Depend on Figures 1-4The present invention includes a housing 1 and a vibrating screening mechanism. An inlet 3 is fixedly installed at the upper end of the housing 1, penetrating the housing 1. A fixed frame 22 is fixedly installed inside the housing 1, opposite to the inlet 3. A material distribution component is fixedly installed inside the fixed frame 22. The material distribution component includes multiple connecting blocks 23 fixedly installed inside the fixed frame 22. A material distribution plate 21 is slidably connected to the connecting blocks 23 and slides against them. The material distribution plate 21 is provided with two material distribution grooves 24 opposite to the inlet 3. A moving rod 20 is fixedly installed at one end of the material distribution plate 21, penetrating the fixed frame 22. The moving rod 20 is provided through the fixed frame 22. A sliding groove 18 is provided on the housing 1. An I-shaped groove 25 is provided in the sliding groove 18 and cooperates with it. An I-shaped block 26 is fixedly installed at one end of the moving rod 20, sliding against the inner wall of the I-shaped groove 25. A lever 19 is fixedly installed on one side of the I-shaped block 26.
[0022] During operation, the lever 19 is moved, which drives the I-shaped block 26 to move along the I-shaped groove 25. The I-shaped block 26 drives the moving rod 20 to move, which in turn drives the material distribution plate 21 to move. The material distribution plate 21 moves so that one of the material distribution grooves 24 is positioned opposite the inlet 3, allowing rice to enter the box 1 from the material distribution groove 24. The rice will fall to different positions on the sieve plate 12 depending on the position of the material distribution groove 24, ensuring that the rice does not fall in one place, which would cause screening difficulties and rice breakage. At the same time, when there is too much rice in the box 1, the material distribution plate 21 can be moved, and the material distribution groove 24 moves to be opposite the connecting block 23, preventing rice from falling into the box 1 and ensuring that too much rice does not accumulate in the box 1.
[0023] The vibrating screening mechanism includes two screen plates 12 fixedly installed inside the housing 1, which are arranged vertically opposite each other. A first motor 11 is fixedly installed inside the housing 1. A rotating rod 14 is fixedly installed at the output end of the first motor 11. A material leveling component is fixedly installed at the bottom of the rotating rod 14. The rotating rod 14 passes through one of the screen plates 12 and is rotatably connected to it. The material leveling component includes a fixing block 13 sleeved on the rotating rod 14. A reducer 17 is fixedly installed on the rotating rod 14. The fixing block 13 is fixedly connected to the rotating rod 14. Multiple scrapers 15 are fixedly installed on the fixing block 13. Multiple brush bristles 16 that abut against the screen plate 12 are fixedly installed at the bottom of the scrapers 15. When using the brush bristles 16 and scrapers 15 to move the rice, a high rotation speed is not required and can be adjusted by the reducer 17.
[0024] During operation, when the first motor 11 is turned on, the output end of the first motor 11 will drive the rotating rod 14 to rotate, the rotating rod 14 will drive the fixed block 13 to rotate, and the fixed block 13 will drive the scraper 15 to rotate. The rotation of the scraper 15 can disperse the rice, which can prevent the rice from piling up. It takes a long time to sieve the rice from bottom to top, while the rotation of the scraper 15 can make the rice spread evenly on the sieve plate 12, which improves the sieve efficiency. At the same time, the rotation of the scraper 15 can drive the brush 16 to rotate, which can brush out the rice remaining in the sieve plate 12, preventing the rice from remaining in the sieve plate 12 and deteriorating, thus affecting the operation of the sieve plate 12.
[0025] Multiple fixed columns 9 are fixedly installed at the bottom of the housing 1. The fixed columns 9 are slidably connected to the mounting frame 2. The fixed columns 9 slide against the inner wall of the mounting frame 2. Mounting components 10 are fixedly connected to the multiple fixed columns 9. The mounting components 10 include a movable plate and two connecting columns. The connecting columns are fixedly connected to the fixed columns 9 and located between the two fixed columns 9. The movable plate is fixedly connected to the connecting columns and located between the two connecting columns. The movable plate can slide against the vibrating component.
[0026] The mounting frame 2 is fixedly mounted with a vibrating component that abuts against the mounting part 10. The vibrating component includes two upright plates 5 fixedly mounted on the upper end of the mounting frame 2. A second motor 6 is fixedly mounted on one of the upright plates 5. A transmission rod 8 is fixedly mounted on the output end of the second motor 6. One end of the transmission rod 8 is rotatably connected to the other upright plate 5. An eccentric roller 7 is sleeved on the transmission rod 8 and fixedly connected to it. The eccentric roller 7 slides against the moving plate. Multiple sliding doors 4 are hinged to the box body 1 and are configured to cooperate with the sieve plate 12. The sieve plate 12 divides the inside of the box body 1 into three parts. The three sliding doors 4 are arranged opposite to the three parts. After screening, pulling the sliding doors 4 can open the sliding doors 4, and the staff can collect the rice.
[0027] When the second motor 6 is turned on, its output will drive the transmission rod 8 to rotate. The transmission rod 8 will drive the eccentric roller 7, which is fixedly connected to it, to rotate. The rotation of the eccentric roller 7 will drive the mounting part 10 to move up and down. The mounting part 10 will drive the fixed column 9 to move up and down. The fixed column 9 will slide against the inner wall of the mounting frame 2. The fixed column 9 will drive the box 1 to move up and down along the direction of the mounting frame 2, thereby vibrating the box 1. The vibration of the box 1 can speed up the screening of rice by the sieve plate 12 and improve the grading efficiency of broken rice.
[0028] Working principle: When working, turn on the second motor 6 and the first motor 11 and move the lever 19. The lever 19 can drive the I-shaped block 26 to move along the I-shaped groove 25. The I-shaped block 26 will drive the moving rod 20 to move. The moving rod 20 will drive the material distribution plate 21 to move. The material distribution plate 21 will move so that one of the material distribution grooves 24 is positioned opposite to the inlet 3. Rice can enter the box 1 from the material distribution groove 24. The rice will fall to different positions on the screen plate 12 depending on the position of the material distribution groove 24.
[0029] The output of the first motor 11 drives the rotating rod 14 to rotate, which in turn drives the fixed block 13 to rotate. The fixed block 13 then drives the scraper 15 to rotate. The rotation of the scraper 15 disperses the rice, preventing it from piling up. The rotation of the scraper 15 also drives the brush 16 to rotate, which brushes out any remaining rice in the sieve plate 12. The output of the second motor 6 drives the transmission rod 8 to rotate, which in turn drives the eccentric roller 7, which is fixedly connected to it, to rotate. The rotation of the eccentric roller 7 causes the mounting part 10 to move up and down, which in turn causes the fixed column 9 to move up and down. The fixed column 9 slides against the inner wall of the mounting frame 2, causing the box 1 to move up and down along the direction of the mounting frame 2, thus vibrating the box 1. This vibration accelerates the sieving of rice by the sieve plate 12, improving the efficiency of breaking rice grading. After sieving, pulling the sliding door 4 opens the door, allowing workers to collect the rice. Repeating the above steps completes the grading of broken rice.
Claims
1. A rice processing broken rice grading device, comprising a housing (1) and a vibrating screening mechanism, characterized in that: The upper end of the box (1) is fixedly installed with an inlet (3) that penetrates the box (1); the vibrating screening mechanism includes two screen plates (12) fixedly installed inside the box (1), the two screen plates (12) are arranged vertically opposite each other, a first motor (11) is fixedly installed on the box (1) and located inside the box (1), a rotating rod (14) is fixedly installed at the output end of the first motor (11), a material leveling component is fixedly installed at the bottom of the rotating rod (14), the rotating rod (14) penetrates one of the screen plates (12) and is rotatably connected to it, the box (1) Multiple fixed columns (9) are fixedly installed at the bottom. The fixed columns (9) are slidably connected to the mounting frame (2). The fixed columns (9) slide against the inner wall of the mounting frame (2). Mounting parts (10) are fixedly connected to the multiple fixed columns (9). Vibrating parts that abut against the mounting parts (10) are fixedly installed on the mounting frame (2). A fixed frame (22) is fixedly installed inside the box (1) opposite to the feed inlet (3). A material distribution part is fixedly installed inside the fixed frame (22). Multiple sliding doors (4) that cooperate with the screen plate (12) are hinged to the box (1).
2. The rice processing broken rice grading device according to claim 1, characterized in that: The material leveling component includes a fixing block (13) sleeved on the rotating rod (14), a reducer (17) fixedly installed on the rotating rod (14), the fixing block (13) is fixedly connected to the rotating rod (14), and multiple scrapers (15) are fixedly installed on the fixing block (13). Multiple brush bristles (16) that abut against the screen plate (12) are fixedly installed at the bottom of the scraper (15).
3. The rice processing broken rice grading device according to claim 1, characterized in that: The mounting component (10) includes a movable plate and two connecting columns. The connecting columns are fixedly connected to the fixed columns (9) and located between the two fixed columns (9). The movable plate is fixedly connected to the connecting columns and located between the two connecting columns. The movable plate can slide against the vibrating component.
4. The rice processing broken rice grading device according to claim 1, characterized in that: The vibrating component includes two upright plates (5) fixedly installed on the upper end of the mounting frame (2), one of which is fixedly installed with a second motor (6), and the output end of the second motor (6) is fixedly installed with a transmission rod (8).
5. The rice processing broken rice grading device according to claim 4, characterized in that: One end of the transmission rod (8) is rotatably connected to another vertical plate (5), and an eccentric roller (7) is fixedly connected to the transmission rod (8). The eccentric roller (7) slides against the moving plate.
6. The rice processing broken rice grading device according to claim 1, characterized in that: The material distribution component includes multiple connecting blocks (23) fixedly installed in the fixed frame (22). A material distribution plate (21) is slidably connected to the connecting block (23) and slides against it. The material distribution plate (21) is provided with two material distribution grooves (24) opposite to the inlet (3).
7. A rice processing broken rice grading device according to claim 6, characterized in that: One end of the material distribution plate (21) is fixedly installed with a movable rod (20) that passes through the fixed frame (22). The movable rod (20) passes through the fixed frame (22). The box body (1) is provided with a sliding groove (18). The sliding groove (18) is provided with an I-shaped groove (25) that cooperates with it. One end of the movable rod (20) is fixedly installed with an I-shaped block (26) that slides against the inner wall of the I-shaped groove (25). A lever (19) is fixedly installed on one side of the I-shaped block (26).