Rice huller for rice processing

By designing a diversion plate and vibrating screen assembly, the problems of paddy blockage and rice mixing were solved, enabling smooth paddy feeding and efficient hulling, thus improving the purity and processing efficiency of the rice.

CN223915464UActive Publication Date: 2026-02-17ZHONGXIANG YANGZI CEREALS & OIL FOOD CO LTD
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Patent Information

Application Number
CN202520047836.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2026-02-17
Estimated Expiration
2035-01-09

AI Technical Summary

Technical Problem

Rice grains are prone to clogging at the feed inlet, and the hulled rice is easily mixed with rice bran and fine rice husks, affecting processing efficiency and quality.

Method used

The design incorporates components such as a flow divider, pusher, vibrating motor, servo motor, hot air box, and screen. Through flow division, vibrating screening, and heating treatment, it avoids clogging and improves dehulling efficiency and purity.

Benefits of technology

It effectively prevents rice clogging, improves the smoothness of feeding, ensures the separation of rice and rice husks, and improves processing efficiency and rice quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rice processing, in particular to a rice processing rice huller which comprises a box body, a feeding port is formed in the top of the box body, a splitter plate is fixedly installed at one end of an inner cavity of the box body, two installation grooves are formed in the wall of the inner cavity of the box body, and small motors are arranged in inner cavities of the two installation grooves. A rotating roller is arranged at the output end of the small motor, a plurality of push plates are fixedly connected to the outer wall of the rotating roller, two inclined plates are symmetrically arranged on the cavity wall of the inner cavity of the box body, a splitter plate arranged on the equipment is matched with the push plates, rice can flow along the two sides of the splitter plate fixedly installed at one end of the inner cavity of the box body, and the splitting effect is achieved; the problem that rice is prone to being blocked when being discharged at a feeding port is avoided, high-frequency vibration generated after a vibration motor arranged on the equipment is started drives a screening plate to resonate, and then rice and crushed rice hulls are vibrated and separated through a screen arranged on the inner wall of the screening plate; and the problem that the hulled rice is easily mixed with rice bran and fine rice husks is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a rice hulling machine. Background Technology

[0002] Rice, also known as paddy rice, is a food made from paddy through cleaning, hulling, milling, and finishing processes. Rice is a staple food for people in most parts of China. A hulling machine is a grain processing machine that removes the husk from paddy to make brown rice. It can remove the outer husk of paddy, reduce the cracking of rice grains and damage to the outer skin, and keep the brown rice as intact as possible.

[0003] The working principle of a rice huller is that when rice is fed between two rotating rollers, the outer shell of the rice is squeezed and torn due to the rotation and mutual friction of the rollers, thus gradually cracking and separating from the rice grains. The rice hulls are removed and then separated from the brown rice by a screen or suction separation device. Hulling is a very important step in the rice processing process and has a significant impact on the subsequent processing results.

[0004] When adding paddy rice to the feed inlet of existing rice hullers, the paddy rice easily causes blockage, resulting in slow feeding or even stopping feeding due to blockage. This requires frequent unloading by the staff, which affects the processing efficiency of the rice huller. In addition, the hulled rice is easily mixed with rice bran and fine rice husks, affecting the quality of the rice. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] It solves the problem of rice paddies easily getting clogged when fed into the inlet, and also solves the problem of rice bran and fine rice husks easily mixing into the hulled rice.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a rice hulling machine, including a box body, a feed inlet at the top of the box body, a diverter plate fixedly installed at one end of the inner cavity of the box body, two mounting slots opened in the inner wall of the box body, a small motor installed in the inner cavity of each of the two mounting slots, a rotating roller installed at the output end of the small motor, several push plates fixedly connected to the outer wall of the rotating roller, two inclined plates symmetrically arranged in the inner wall of the box body, a mounting frame installed in the inner wall of the box body, a vibration motor installed at the top of the mounting frame, several spring connecting seats installed at the top of the mounting frame, a screening plate installed at the top of the spring connecting seats, and a screen installed on the inner wall of the screening plate.

[0009] To solve the above technical problems, the present invention provides the following technical solution: a mounting plate is provided on one side of the housing, a servo motor is provided on the top of the mounting plate, a drive wheel is provided at the output end of the servo motor, a drive rubber roller is provided in the inner cavity of the housing, a rotating shaft is provided on the inner wall of the drive rubber roller, a driven wheel is provided on the side of the rotating shaft away from the drive rubber roller, and a belt is used to drive the driven wheel and the drive wheel.

[0010] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a hot air box is provided on the top of the servo motor, a heating tube is provided in the inner cavity of the hot air box, and a fan is provided on the side of the hot air box away from the box body.

[0011] To solve the above-mentioned technical problems, the present invention provides the following technical solution: the hot air box is connected to a duct on the side near the box body, and an air outlet is provided at the end of the duct away from the hot air box, and a plurality of air outlets are provided on the outer surface of the air outlet.

[0012] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a guide plate is provided on the side of the screening plate away from the vibrating motor, a bottom plate is provided at the bottom of the box, and a partition is provided at the top of the bottom plate.

[0013] To solve the above technical problems, the present invention provides the following technical solution: the inner wall of the box is provided with a driven rubber roller, the inner wall of the driven rubber roller is provided with a fixing rod, the inner wall of the box is provided with a rice outlet on the side near the partition, and the inner wall of the box is provided with a slag outlet on the side near the vibrating motor.

[0014] The beneficial effects of this utility model are:

[0015] 1. The diversion plate and push plate set in this equipment can make the rice flow along both sides of the diversion plate fixed at one end of the inner cavity of the box, which plays a diversion role and avoids the problem of rice being easily blocked when it is fed into the inlet.

[0016] 2. The high-frequency vibration generated by the vibrating motor of the device drives the screening plate to resonate. Then, the rice and crushed rice husks are vibrated and screened through the screen set on the inner wall of the screening plate, which avoids the problem that rice bran and fine rice husks are easily mixed in after hulling. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall side structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the box body of this utility model.

[0021] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Box body; 2. Feed inlet; 3. Rice outlet; 4. Slag outlet; 5. Bottom plate; 6. Mounting plate; 7. Servo motor; 8. Drive wheel; 9. Belt; 10. Driven wheel; 11. Small motor; 12. Rotating roller; 13. Push plate; 14. Air guide pipe; 15. Air outlet pipe; 16. Air outlet; 17. Diverter plate; 18. Inclined plate; 19. Driven rubber roller; 20. Fixed rod; 21. Rotating shaft; 22. Driven rubber roller; 23. Screening plate; 24. Screen; 25. Vibrating motor; 26. Spring connecting seat; 27. Guide plate; 28. Mounting frame; 29. ​​Partition plate; 30. Hot air box; 31. Heating tube; 32. Fan. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Example 1

[0025] Reference Figure 1-2 This is the first embodiment of the present invention, which provides a rice hulling machine, including a housing 1. The top of the housing 1 is provided with a feed inlet 2. A diverter plate 17 is fixedly installed at one end of the inner cavity of the housing 1. Two mounting slots are opened in the inner wall of the housing 1. A small motor 11 is provided in the inner cavity of each mounting slot. A rotating roller 12 is provided at the output end of the small motor 11. Several push plates 13 are fixedly connected to the outer wall of the rotating roller 12. Two inclined plates 18 are symmetrically arranged in the inner wall of the housing 1. A mounting frame 28 is provided in the inner wall of the housing 1. A vibration motor 25 is provided at the top of the mounting frame 28. Several spring connecting seats 26 are provided at the top of the mounting frame 28. A screening plate 23 is provided at the top of the spring connecting seats 26. A screen 24 is provided on the inner wall of the screening plate 23.

[0026] First, the rice is poured in through the feed inlet 2. The rice flows along both sides of the diversion plate 17 fixedly installed at one end of the inner cavity of the box 1. The small motor 11 is started, which drives the rotating roller 12 set at the output end of the small motor 11. When the rotating roller 12 rotates, several push plates 13 fixedly connected to the outer wall of the rotating roller 12 push the rice to the inclined plate 18. Then the rice is guided by the inclined plate 18 to two driven rubber rollers 19. Then the two driven rubber rollers 19 and the active rubber roller 22 rotate and cooperate to dehull the rice. The vibration motor 25 set at the top of the mounting frame 28 is started. The vibration motor 25 will generate high-frequency vibration. The high-frequency vibration will drive the screening plate 23 to resonate. Then the rice and crushed rice husks are vibrated and screened through the screen 24 set on the inner wall of the screening plate 23. The rice is guided along the guide plate 27 to the rice outlet 3, and the crushed rice husks are screened down to the slag outlet 4 for discharge.

[0027] A mounting plate 6 is provided on one side of the housing 1, and a servo motor 7 is provided on the top of the mounting plate 6. A drive wheel 8 is provided at the output end of the servo motor 7. An drive rubber roller 22 is provided in the inner cavity of the housing 1. A rotating shaft 21 is provided on the inner wall of the drive rubber roller 22. A driven wheel 10 is provided on the side of the rotating shaft 21 away from the drive rubber roller 22. A belt 9 is connected between the driven wheel 10 and the drive wheel 8. When the servo motor 7 is started, the drive wheel 8 at the output end of the servo motor 7 is driven. The drive wheel 8 drives the driven wheel 10 through the belt 9, thereby driving the rotating shaft 21 connected to the driven wheel 10, which in turn drives the drive rubber roller 22 to rotate. When the drive rubber roller 22 rotates, it cooperates with the two driven rubber rollers 19 to dehull the rice.

[0028] A hot air box 30 is installed on the top of the servo motor 7. A heating tube 31 is installed inside the hot air box 30. A fan 32 is installed on the side of the hot air box 30 away from the box body 1. When the fan 32 is started, air is introduced into the hot air box 30. The heating tube 31 inside the hot air box 30 heats the introduced air and then it is delivered to the air outlet pipe 15 through the air guide pipe 14. Then it is sprayed out from several air outlets 16 on the outer surface of the air outlet pipe 15 to heat the rice poured into the box body 1, remove the moisture on the surface of the rice, ensure the dryness of the rice, and improve the hulling effect.

[0029] Example 2

[0030] Reference Figure 3-4 This is the second embodiment of the present invention, which differs from the first embodiment in that:

[0031] The hot air box 30 is connected to a duct 14 on the side near the box body 1. The end of the duct 14 away from the hot air box 30 is provided with an air outlet 15. Several air outlets 16 are provided on the outer surface of the air outlet 15. Heated air is sprayed out from the air outlets 16 to heat the rice poured into the box body 1, remove moisture from the surface of the rice, and ensure the dryness of the rice.

[0032] A guide plate 27 is provided on the side of the screening plate 23 away from the vibrating motor 25 to guide the screened rice to the rice outlet 3. A bottom plate 5 is provided at the bottom of the box body 1, and a partition 29 is provided on the top of the bottom plate 5 to separate the screened rice from the crushed rice husks and discharge them separately from the rice outlet 3 and the dregs outlet 4 to prevent them from mixing together.

[0033] The inner wall of the box body 1 is provided with a driven rubber roller 19, and the inner wall of the driven rubber roller 19 is provided with a fixing rod 20, which is used to cooperate with the active rubber roller 22 to dehull the rice. The inner wall of the box body 1 is provided with a rice outlet 3 on the side near the partition 29, and the inner wall of the box body 1 is provided with a slag outlet 4 on the side near the vibrating motor 25, which is used to discharge the crushed rice husks.

[0034] The remaining structure is the same as that in Example 1.

[0035] During use, rice is first poured into the feed inlet 2, and the blower 32 is started to introduce air into the hot air box 30. The inner cavity of the hot air box 30 is equipped with a heating pipe 31 to heat the introduced air, which is then transported to the air outlet 15 through the air guide pipe 14. Subsequently, the air is sprayed out from several air outlets 16 on the outer surface of the air outlet 15 to heat the rice poured into the box 1 and remove the moisture from the surface of the rice. The rice flows along both sides of the diversion plate 17 fixedly installed at one end of the inner cavity of the box 1. The small motor 11 is started to drive the rotating roller 12 set at the output end of the small motor 11. When the rotating roller 12 rotates, several push plates 13 fixedly connected to the outer wall of the rotating roller 12 push the rice to the inclined plate 18. Then the rice is guided by the inclined plate 18 to the two driven rubber rollers 19.

[0036] During use, the servo motor 7 is started, which drives the drive wheel 8 set at the output end of the servo motor 7. The drive wheel 8 drives the driven wheel 10 through the belt 9, which in turn drives the rotating shaft 21 connected to the driven wheel 10, thereby driving the drive rubber roller 22 to rotate. When the drive rubber roller 22 rotates, it cooperates with the two driven rubber rollers 19 to dehull the rice. The vibration motor 25 set at the top of the mounting frame 28 is started. The vibration motor 25 will generate high-frequency vibration, which will drive the screening plate 23 to resonate. Then, the rice and crushed rice husks are vibrated and screened through the screen 24 set on the inner wall of the screening plate 23. The rice is guided along the guide plate 27 to the rice outlet 3, and the crushed rice husks are screened down to the slag outlet 4 for discharge.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rice hulling machine, comprising a housing (1), wherein a feed inlet (2) is provided on the top of the housing (1), characterized in that: A diverter plate (17) is fixedly installed at one end of the inner cavity of the box (1). Two mounting slots are opened in the inner wall of the box (1). A small motor (11) is installed in the inner cavity of each of the two mounting slots. A rotating roller (12) is installed at the output end of the small motor (11). Several push plates (13) are fixedly connected to the outer wall of the rotating roller (12). Two inclined plates (18) are symmetrically arranged in the inner cavity wall of the box (1). A mounting frame (28) is installed in the inner cavity wall of the box (1). A vibration motor (25) is installed on the top of the mounting frame (28). Several spring connecting seats (26) are installed on the top of the spring connecting seats (26). A screening plate (23) is installed on the top of the spring connecting seats (26). A screen (24) is installed on the inner wall of the screening plate (23).

2. The rice hulling machine according to claim 1, characterized in that: A mounting plate (6) is provided on one side of the housing (1), a servo motor (7) is provided on the top of the mounting plate (6), a drive wheel (8) is provided at the output end of the servo motor (7), a drive roller (22) is provided in the inner cavity of the housing (1), a rotating shaft (21) is provided on the inner wall of the drive roller (22), a driven wheel (10) is provided on the side of the rotating shaft (21) away from the drive roller (22), and a belt (9) is connected between the driven wheel (10) and the drive wheel (8).

3. A rice hulling machine according to claim 2, characterized in that: A hot air box (30) is provided on the top of the servo motor (7), a heating tube (31) is provided in the inner cavity of the hot air box (30), and a fan (32) is provided on the side of the hot air box (30) away from the box body (1).

4. A rice hulling machine according to claim 3, characterized in that: The hot air box (30) is connected to a duct (14) on the side near the box body (1). An air outlet pipe (15) is provided at the end of the duct (14) away from the hot air box (30). Several air outlets (16) are provided on the outer surface of the air outlet pipe (15).

5. A rice hulling machine according to claim 4, characterized in that: A guide plate (27) is provided on the side of the screening plate (23) away from the vibrating motor (25), a bottom plate (5) is provided at the bottom of the box (1), and a partition plate (29) is provided on the top of the bottom plate (5).

6. A rice hulling machine according to claim 1, characterized in that: The inner wall of the box (1) is provided with a driven rubber roller (19), and the inner wall of the driven rubber roller (19) is provided with a fixing rod (20). The inner wall of the box (1) near the partition (29) is provided with a rice outlet (3), and the inner wall of the box (1) near the vibrating motor (25) is provided with a slag outlet (4).