Rice husking machine capable of adjusting brown rice and polished rice

By designing a rice milling machine that can produce both brown and polished rice, and by combining a hulling mechanism with a rotating shaft and a rotating plate, along with a directional mechanism and a polishing machine, the problem that existing rice milling machines can only produce brown rice has been solved. This allows paddy rice to be flexibly converted into polished or brown rice, improving processing efficiency and adaptability.

CN223818727UActive Publication Date: 2026-01-23PINGYANG KAISEN IND CO LTD
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Patent Information

Application Number
CN202520185987.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-01-23
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

Existing rice milling machines cannot effectively produce polished rice; they can only produce brown rice, which retains most of the bran and germ.

Method used

A rice milling machine with adjustable output for brown rice and polished rice was designed. By combining the hulling mechanism with a temporary storage bin, discharge port, rotating shaft and rotating plate, the output of paddy rice can be adjusted. Combined with the orientation mechanism and polishing machine, the paddy rice is transported to different discharge ends for processing, ensuring that the paddy rice can be converted into polished rice or brown rice according to the demand.

Benefits of technology

This technology enables the efficient conversion of paddy rice into polished or brown rice, improving the flexibility and efficiency of grain processing and meeting diverse production requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rice husking machines, and discloses a brown rice and polished rice adjustable rice husking machine which comprises a husking mechanism, one end of the husking mechanism is communicated with a temporary storage bin, the lower end of the temporary storage bin is communicated with a discharging port, the left side of the discharging port is communicated with a second discharging end, and the right side of the discharging port is communicated with a first discharging end. The bottom of the discharging port is rotationally connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a rotating plate, one end of the rotating shaft is fixedly connected with an adjusting handle, a second hopper is arranged below the second discharging end, and a first hopper is arranged below the first discharging end. According to the rice hulling device, the rotating shaft and the rotating plate are driven to rotate by rotating the adjusting handle, so that the top end of the rotating plate is attached to the inner wall of the left side of the discharging port, hulled rice is discharged from the first discharging end, reaches the first hopper and then enters the polishing machine from the first hopper to be polished, and polished rice is discharged.
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Description

Technical Field

[0001] This utility model relates to the field of rice milling machine technology, and in particular to a rice milling machine that can adjust the brown rice and polished rice. Background Technology

[0002] In the process of social development, rice milling machines have played a crucial role. During the transition from an agricultural to an industrial society, the rapid growth of the population and the pace of urbanization placed higher demands on the scale and speed of grain processing. Traditional small-scale and inefficient rice milling methods could not meet the grain needs of a large population. The emergence and continuous improvement of rice milling machines enabled rice processing to be carried out in a factory-like and large-scale environment, which not only improved the efficiency of grain processing and ensured a stable supply of grain in the market, but also freed up a large amount of manpower.

[0003] A search revealed Chinese Patent Publication No. CN212791081U, which discloses a double-layer rice milling machine, comprising a housing and a rice milling drum. The housing has a feed inlet at its top, and the rice milling drum is fixedly mounted on the top of the housing, with its top end connected to the feed inlet. A first motor is fixedly mounted on one side of the top of the inner wall of the housing. A first connecting shaft is rotatably inserted inside the rice milling drum, with one end fixedly connected to the output shaft of the first motor. A grinding wheel is fixedly mounted on the first connecting shaft, and a first... The solenoid valve has a funnel located in the middle of the inner wall of the housing via two sieving mechanisms. The advantages of this invention are: the feed inlet facilitates feeding; the first motor works in conjunction with the grinding wheel to perform the first milling of the material to be whitened; and the sieving mechanism works in conjunction with the funnel and screen to remove larger rice grains or particles, improving production quality and facilitating secondary milling. However, the above structure only removes the outer husk of the rice, retaining most of the bran and germ, producing brown rice, not polished rice. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a rice milling machine that can produce both brown rice and polished rice, aiming to improve the problem in the existing technology that only removes the outer husk of the paddy rice, retaining most of the bran and germ, and produces brown rice but cannot produce polished rice.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rice milling machine with adjustable brown and polished rice, comprising a hulling mechanism, one end of which is connected to a temporary storage bin, the lower end of which is connected to a discharge port, a second discharge end connected to the left side of the discharge port, a first discharge end connected to the right side of the discharge port, a rotating shaft rotatably connected to the bottom of the discharge port, a rotating plate fixedly connected to the outer wall of the rotating shaft, an adjusting handle fixedly connected to one end of the rotating shaft, a second hopper provided below the second discharge end, a first hopper provided below the first discharge end, a polishing machine connected below the first hopper, and a directional mechanism provided on the outer wall of the rotating shaft for limiting the rotation direction of the adjusting handle.

[0006] The above technical solution involves the following: one end of the hulling mechanism is connected to a temporary storage bin, which temporarily stores the hulled rice. A discharge port is located at the lower end of the temporary storage bin to transport the rice to the next processing stage. A second discharge end is connected to the left side of the discharge port, while a first discharge end is connected to the right side. Rice can be transported to two different discharge ends according to different needs. A rotatable shaft is designed at the bottom of the discharge port, with a rotating plate fixedly connected to its outer wall. The rotating plate guides the rice flow to the corresponding discharge end. An adjustment handle is fixedly connected to one end of the shaft, allowing adjustment of the rice flow direction for adjustable output. A second hopper is located below the second discharge end to collect the rice output from it. A first hopper is located below the first discharge end to collect the rice output from it. A polishing machine is also connected below the first hopper to polish the rice, turning it into refined rice.

[0007] As a further description of the above technical solution:

[0008] The orientation mechanism includes a bidirectional ratchet, the middle of which is fixedly connected to the outer wall of the rotating shaft. A bidirectional pawl is engaged with the outer wall of the bidirectional ratchet, and a fixed post is rotatably connected to the middle of the bidirectional pawl. A control rod is fixedly connected to the outer wall of the bidirectional pawl. A protective shell is fixedly connected to the outer wall of the discharge port, and a spring is fixedly connected to the inner wall of the protective shell. A locking post is fixedly connected to the other end of the spring.

[0009] Through the above technical solution: the middle part of the bidirectional ratchet is tightly connected to the outer wall of the rotating shaft by a fixed connection. A bidirectional pawl is engaged with the outer wall of the bidirectional ratchet, and the middle part of the bidirectional pawl is rotatably connected to a fixed post. A control rod is fixedly connected to the outer wall of the bidirectional pawl, and the control rod is used to control the movement of the bidirectional ratchet. A protective shell is fixedly connected to the outer wall of the discharge port, and a spring is fixedly connected to the inner wall of this protective shell. The other end of the spring is fixedly connected to a locking post. The function of the locking post is to ensure that the bidirectional pawl remains stable in a specific position. When the bidirectional ratchet rotates... When the shaft rotates under its drive, the bidirectional pawl engages with it, thereby achieving precise control of the bidirectional ratchet. The control lever, connected to the bidirectional pawl, controls the rotation direction of the bidirectional ratchet, causing it to rotate in a predetermined direction. The protective shell protects the internal mechanical structure from external environmental influences and ensures the stable operation of the entire orientation mechanism. The spring provides the necessary elasticity to the locking pin, enabling the bidirectional ratchet to be securely locked in a specific position, preventing accidental movement. When the bidirectional pawl reaches the predetermined position, the locking pin locks it in place by the elasticity of the spring, ensuring the stability and reliability of the entire mechanism.

[0010] As a further description of the above technical solution:

[0011] A triangular head is fixedly connected to the top of the rotating plate, and a matching groove is provided on the inner wall of the discharge port.

[0012] The above technical solution involves mating grooves on both sides of the inner wall of the discharge port. The shape, size, and position of the mating grooves are designed according to the characteristics of the triangular head on the rotating plate. The two work together to complete the orderly conveying of materials in the discharge process.

[0013] As a further description of the above technical solution:

[0014] An observation window is fixedly connected to the outer wall of the temporary storage compartment, and a fixed ball is fixedly connected to the top of the adjustment handle.

[0015] The above technical solution involves a viewing window fixedly connected to the outer wall of the temporary storage bin, which allows for convenient and clear observation of the storage status of materials inside the bin, thereby enabling timely understanding of the production progress and material reserves. A fixed ball is fixedly connected to the top of the adjustment handle, providing a better grip and control when operating the adjustment handle.

[0016] As a further description of the above technical solution:

[0017] A fixing plate is fixedly connected to the outer wall of the first hopper, and an insert is slidably connected to the bottom surface of the first hopper.

[0018] Through the above technical solution: the fixing plate is fixed on the outer wall of the first hopper, providing an installation position for subsequent components, and the insert can control the discharge of materials in the first hopper.

[0019] As a further description of the above technical solution:

[0020] A handle is fixedly connected to the outer wall of the insert, and the outer wall of the handle is slidably connected to the outer wall of the fixing plate.

[0021] The above technical solution involves a handle fixedly connected to the outer wall of the insert for controlling its movement and positioning. The outer wall of the handle is slidably connected to the outer wall of the fixed plate, allowing the handle to slide freely on the fixed plate to facilitate adjustment of the insert's position.

[0022] As a further description of the above technical solution:

[0023] The bottom of the polishing machine is fixedly connected to a rice storage bin, and an iron door is rotatably connected to the outer wall of the rice storage bin.

[0024] The above technical solution involves a rice storage bin fixedly connected to the bottom of the polishing machine, with an iron door rotatably connected to the outer wall of the rice storage bin. The iron door can be opened and closed to facilitate the storage and retrieval of materials inside.

[0025] As a further description of the above technical solution:

[0026] The outer wall of the iron gate has a groove, and the outer wall of the rice storage bin is fixedly connected to a pressure regulating mechanism.

[0027] The above technical solution allows for easy opening and closing of the iron door, improving overall operational convenience. The outer wall of the rice storage compartment is fixedly connected to a pressure adjustment mechanism, which can adjust the pressure of the polishing machine as needed to ensure the polishing quality of the rice grains.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, after the rice is dehulled by the dehulling mechanism, it reaches the discharge port through the temporary storage bin. By turning the adjustment handle, the rotating shaft and rotating plate are driven to rotate, so that the top of the rotating plate is attached to the left inner wall of the discharge port. Then the dehulled rice is discharged from the first discharge end into the first hopper, and then enters the polishing machine from the first hopper for polishing to achieve the discharge of refined rice. When the rotating plate is attached to the right inner wall of the discharge port, the dehulled rice is discharged from the second discharge end into the second hopper to achieve the discharge of brown rice.

[0030] 2. In this utility model, when the lower end of the bidirectional pawl engages with the bidirectional ratchet, the locking pin is attached to the upper rear side of the bidirectional pawl, and the rotating shaft can rotate clockwise. The bidirectional pawl prevents the rotating shaft from rotating counterclockwise. When the control lever is moved, the bidirectional pawl rotates, and the upper end of the bidirectional pawl engages with the bidirectional ratchet. The locking pin is attached to the lower rear side of the bidirectional pawl, and the rotating shaft can rotate counterclockwise. The bidirectional pawl prevents the rotating shaft from rotating clockwise, thereby controlling the rotation direction of the rotating shaft and fixing the position of the rotating plate. Attached Figure Description

[0031] Figure 1 This is a front perspective view of a rice milling machine with adjustable brown rice and polished rice specifications proposed in this utility model.

[0032] Figure 2 This is a partial structural diagram of an adjustable rice milling machine insert for brown rice and polished rice, as proposed in this utility model.

[0033] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0034] Figure 4 This is a cross-sectional view of the rotating plate of a rice milling machine with adjustable brown rice and polished rice according to the present invention.

[0035] Figure 5 This is a partial structural schematic diagram of the orientation mechanism of a rice milling machine with adjustable brown rice and polished rice according to the present invention.

[0036] Legend:

[0037] 1. Shelling mechanism; 2. Orientation mechanism; 201. Two-way ratchet; 202. Fixing post; 203. Two-way pawl; 204. Locking post; 205. Spring; 206. Control lever; 207. Protective shell; 3. Temporary storage bin; 4. Discharge port; 5. First discharge end; 6. Second discharge end; 7. Rotating shaft; 8. Rotating plate; 9. Adjusting handle; 10. First hopper; 11. Second hopper; 12. Polishing machine; 13. Rice storage bin; 14. Iron door; 15. Groove; 16. Observation window; 17. Pressure adjustment mechanism; 18. Fixing ball; 19. Triangular head; 20. Mating groove; 21. Fixing plate; 22. Insert plate; 23. Pull handle. Detailed Implementation

[0038] 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.

[0039] Please see the appendix Figure 1 - Appendix Figure 3 An embodiment of this utility model provides: a rice milling machine with adjustable brown rice and polished rice, including a hulling mechanism 1, one end of the hulling mechanism 1 is connected to a temporary storage bin 3, the lower end of the temporary storage bin 3 is connected to a discharge port 4, the left side of the discharge port 4 is connected to a second discharge end 6, the right side of the discharge port 4 is connected to a first discharge end 5, the bottom of the discharge port 4 is rotatably connected to a rotating shaft 7, the outer wall of the rotating shaft 7 is fixedly connected to a rotating plate 8, one end of the rotating shaft 7 is fixedly connected to an adjusting handle 9, a second hopper 11 is provided below the second discharge end 6, a first hopper 10 is provided below the first discharge end 5, a polishing machine 12 is connected below the first hopper 10, and the outer wall of the rotating shaft 7 is provided with an orienting mechanism 2, which is used to limit the rotation direction of the adjusting handle 9;

[0040] Specifically, one end of the hulling mechanism 1 is connected to the temporary storage bin 3, which temporarily stores the hulled rice. The lower end of the temporary storage bin 3 has a discharge port 4 for conveying the rice to the next processing stage. The left side of the discharge port 4 is connected to the second discharge end 6, while the right side is connected to the first discharge end 5. The rice can be conveyed to the two different discharge ends according to different needs. A rotatable shaft 7 is designed at the bottom of the discharge port 4, and a rotating plate 8 is fixedly connected to the outer wall of the shaft 7. The function of the rotating plate 8 is... The rice is guided to the corresponding discharge end. One end of the rotating shaft 7 is fixedly connected to an adjustment handle 9. The flow direction of the rice can be changed by adjusting the handle 9, thereby achieving adjustable output. A second hopper 11 is set below the second discharge end 6 to collect the rice output from the second discharge end 6. A first hopper 10 is set below the first discharge end 5 to collect the rice output from the first discharge end 5. A polishing machine 12 is also connected below the first hopper 10 to polish the rice and turn it into refined rice.

[0041] Please see the appendix Figure 3 - Appendix Figure 5 The orientation mechanism 2 includes a bidirectional ratchet 201, the middle of which is fixedly connected to the outer wall of the rotating shaft 7. A bidirectional pawl 203 is engaged with the outer wall of the bidirectional ratchet 201. A fixed post 202 is rotatably connected to the middle of the bidirectional pawl 203. A control rod 206 is fixedly connected to the outer wall of the bidirectional pawl 203. A protective shell 207 is fixedly connected to the outer wall of the discharge port 4. A spring 205 is fixedly connected to the inner wall of the protective shell 207. A locking post 204 is fixedly connected to the other end of the spring 205.

[0042] Specifically, the middle part of the double-sided ratchet 201 is tightly connected to the outer wall of the rotating shaft 7 by a fixed connection. A double-sided pawl 203 is engaged with the outer wall of the double-sided ratchet 201. The middle part of the double-sided pawl 203 is connected to the fixed post 202 by a rotatable connection. A control rod 206 is fixedly connected to the outer wall of the double-sided pawl 203. The control rod 206 is used to control the movement of the double-sided ratchet 201. A protective shell 207 is fixedly connected to the outer wall of the discharge port 4. A spring 205 is fixedly connected to the inner wall of the protective shell 207. The other end of the spring 205 is fixedly connected to a locking post 204. The function of the locking post 204 is to ensure that the double-sided pawl 203 remains stable in a specific position. When the double-sided ratchet 201... When the rotating shaft 7 is driven to rotate, the bidirectional pawl 203 will engage with it, thereby achieving precise control of the bidirectional ratchet 201. The control lever 206, through its connection with the bidirectional pawl 203, controls the rotation direction of the bidirectional ratchet 201, causing the bidirectional ratchet 201 to rotate in a predetermined direction. The protective shell 207 protects the internal mechanical structure from the influence of the external environment and ensures the stable operation of the entire orientation mechanism 2. The spring 205 provides the necessary elasticity to the locking pin 204, enabling the bidirectional ratchet 201 to be firmly locked in a specific position to prevent accidental movement. When the bidirectional pawl 203 reaches the predetermined position, the locking pin 204 locks it by the elasticity of the spring 205, ensuring the stability and reliability of the entire mechanism.

[0043] Please see the appendix Figure 1 - Appendix Figure 3 A triangular head 19 is fixedly connected to the top of the rotating plate 8, a mating groove 20 is opened on the inner wall of the discharge port 4, an observation window 16 is fixedly connected to the outer wall of the temporary storage bin 3, a fixed ball 18 is fixedly connected to the top of the adjusting handle 9, a fixed plate 21 is fixedly connected to the outer wall of the first hopper 10, and an insert 22 is slidably connected to the bottom surface of the first hopper 10.

[0044] Specifically, mating grooves 20 are provided on both sides of the inner wall of the discharge port 4. The shape, size and position of the mating grooves 20 are based on the characteristics of the triangular head 19 on the rotating plate 8. The two work together to complete the orderly conveying of materials in the discharge stage. An observation window 16 is fixedly connected to the outer wall of the temporary storage bin 3. The storage status of the materials inside the temporary storage bin 3 can be conveniently and clearly viewed through the observation window 16, so as to understand the production process and material balance in a timely manner. A fixed ball 18 is fixedly connected to the top of the adjustment handle 9. The fixed ball 18 provides a better grip and control when operating the adjustment handle 9.

[0045] Please see the appendix Figure 3 - Appendix Figure 5A handle 23 is fixedly connected to the outer wall of the insert 22. The outer wall of the handle 23 is slidably connected to the outer wall of the fixing plate 21. A rice storage bin 13 is fixedly connected to the bottom of the polishing machine 12. An iron door 14 is rotatably connected to the outer wall of the rice storage bin 13. A groove 15 is opened on the outer wall of the iron door 14. A pressure adjustment mechanism 17 is fixedly connected to the outer wall of the rice storage bin 13.

[0046] Specifically, a handle 23 is fixedly connected to the outer wall of the insert 22 for controlling the movement and positioning of the insert 22. The outer wall of the handle 23 is slidably connected to the outer wall of the fixed plate 21, allowing the handle 23 to slide freely on the fixed plate 21 to adjust the position of the insert 22. A rice storage bin 13 is fixedly connected to the bottom of the polishing machine 12. An iron door 14 is rotatably connected to the outer wall of the rice storage bin 13. The iron door 14 can be opened and closed to facilitate the storage and retrieval of internal materials. A groove 15 is provided on the outer wall of the iron door 14 to facilitate opening and closing the door and improve the overall ease of operation. A pressure adjustment mechanism 17 is fixedly connected to the outer wall of the rice storage bin 13 to adjust the pressure of the polishing machine 12 as needed to ensure the polishing quality of the rice grains.

[0047] Working principle: After the rice is dehulled by the dehulling mechanism 1, it reaches the discharge port 4 through the temporary storage bin 3. Turning the adjustment handle 9 drives the rotating shaft 7 and the rotating plate 8 to rotate, so that the top of the rotating plate 8 is in contact with the inner left side of the discharge port 4. Then the dehulled rice is discharged from the first discharge end 5 into the first hopper 10, and then enters the polishing machine 12 from the first hopper 10 for polishing, so as to discharge fine rice. When the rotating plate 8 is in contact with the inner right side of the discharge port 4, the dehulled rice is discharged from the second discharge end 6 into the second hopper 11, so as to discharge brown rice.

[0048] When the lower end of the bidirectional pawl 203 engages with the bidirectional ratchet 201, the locking pin 204 is attached to the upper rear side of the bidirectional pawl 203, and the rotating shaft 7 can rotate clockwise. The bidirectional pawl 203 prevents the rotating shaft 7 from rotating counterclockwise. When the control lever 206 is moved, the bidirectional pawl 203 rotates, and the upper end of the bidirectional pawl 203 engages with the bidirectional ratchet 201. The locking pin 204 is attached to the lower rear side of the bidirectional pawl 203, and the rotating shaft 7 can rotate counterclockwise. The bidirectional pawl 203 prevents the rotating shaft 7 from rotating clockwise, thereby controlling the rotation direction of the rotating shaft 7 and fixing the position of the rotating plate 8.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rice milling machine with adjustable brown rice and polished rice, comprising a hulling mechanism (1), characterized in that: One end of the shelling mechanism (1) is connected to a temporary storage chamber (3), the lower end of the temporary storage chamber (3) is connected to a discharge port (4), the left side of the discharge port (4) is connected to a second discharge end (6), the right side of the discharge port (4) is connected to a first discharge end (5), the bottom of the discharge port (4) is rotatably connected to a rotating shaft (7), the outer wall of the rotating shaft (7) is fixedly connected to a rotating plate (8), one end of the rotating shaft (7) is fixedly connected to an adjusting handle (9), a second hopper (11) is provided below the second discharge end (6), a first hopper (10) is provided below the first discharge end (5), a polishing machine (12) is connected below the first hopper (10), and an orientation mechanism (2) is provided on the outer wall of the rotating shaft (7). The orientation mechanism (2) is used to limit the rotation direction of the adjusting handle (9).

2. The rice milling machine with adjustable brown rice and polished rice according to claim 1, characterized in that: The orientation mechanism (2) includes a bidirectional ratchet (201), the middle of which is fixedly connected to the outer wall of the rotating shaft (7), a bidirectional pawl (203) is engaged with the outer wall of the bidirectional ratchet (201), a fixed post (202) is rotatably connected to the middle of the bidirectional pawl (203), a control rod (206) is fixedly connected to the outer wall of the bidirectional pawl (203), a protective shell (207) is fixedly connected to the outer wall of the discharge port (4), a spring (205) is fixedly connected to the inner wall of the protective shell (207), and a locking post (204) is fixedly connected to the other end of the spring (205).

3. The rice milling machine with adjustable brown rice and polished rice according to claim 1, characterized in that: The top of the rotating plate (8) is fixedly connected to a triangular head (19), and the inner wall of the discharge port (4) is provided with a mating groove (20).

4. The rice milling machine with adjustable brown rice and polished rice according to claim 1, characterized in that: The outer wall of the temporary storage compartment (3) is fixedly connected to an observation window (16), and the top of the adjustment handle (9) is fixedly connected to a fixed ball (18).

5. A rice milling machine with adjustable brown rice and polished rice according to claim 1, characterized in that: A fixing plate (21) is fixedly connected to the outer wall of the first hopper (10), and a insert plate (23) is slidably connected to the bottom surface of the first hopper (10).

6. A rice milling machine with adjustable brown rice and polished rice according to claim 5, characterized in that: The outer wall of the insert (23) is fixedly connected to a handle (22), and the outer wall of the handle (22) is slidably connected to the outer wall of the fixing plate (21).

7. A rice milling machine with adjustable brown rice and polished rice according to claim 1, characterized in that: The bottom of the polishing machine (12) is fixedly connected to a rice storage bin (13), and the outer wall of the rice storage bin (13) is rotatably connected to an iron door (14).

8. A rice milling machine with adjustable brown rice and polished rice according to claim 7, characterized in that: The outer wall of the iron gate (14) is provided with a groove (15), and the outer wall of the rice storage bin (13) is fixedly connected with a pressure regulating mechanism (17).

Citation Information

Patent Citations

  • Double-layer rice mill

    CN212791081U