Rice huller for rice processing
By using a guide pipe and multi-layer guide plate design, combined with an air supply assembly and a motor-driven pulley system, the problems of uneven feeding and incomplete removal of rice husks in rice processing are solved, achieving efficient separation and removal of rice husks in rice processing.
Patent Information
- Application Number
- CN202423278771.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In existing rice hulling machines for rice processing, uneven feeding in the feed chute leads to incomplete separation of rice husks and rice grains, especially making it difficult to remove rice husks trapped in the rice grains.
The rice is evenly conveyed to the rubber roller through the guide pipe. Combined with the design of scraper and multi-layer guide plate, the rice husk is blown away by the air blowing component. The rice is evenly spread and the separation time between rice husk and rice is extended by the motor-driven pulley and reciprocating screw system.
It achieves uniform feeding of rice, improves the separation efficiency of rice husks and rice, ensures complete removal of rice husks, and reduces damage to rice grains.
Smart Images

Figure CN223788560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice hulling machine technology, and in particular to a rice hulling machine for rice processing. Background Technology
[0002] A rice huller is a grain processing machine that removes the husk from paddy rice to produce brown rice. It removes the outer shell of the paddy rice, reducing grain breakage and surface damage, and preserving the brown rice as much as possible. It mainly consists of a hopper feeding device, a machine head, a husk separation chamber, a gearbox, and a frame. Common rice hulling equipment includes rubber roller rice hullers, sand disc rice hullers, and centrifugal rice hullers.
[0003] A rice huller for rice processing, with Chinese patent application number CN202322033168.X, includes a hopper. The top of the hopper is connected to a feed hopper. The inner wall of the hopper is provided with a discharge plate. The interior of the hopper is provided with a shell removal mechanism. The bottom of the hopper is provided with a discharge assembly. The left side of the hopper is provided with a feeding mechanism that extends through and into the interior, enabling uniform feeding of multiple channels. The feeding mechanism includes a fixed plate, a distribution plate, a guide slide, a rotating shaft, a servo motor, gears, and rubber rollers. The fixed plate is located at the upper end of the inner wall of the hopper. The distribution plate is located at the bottom of the fixed plate. The other end of the distribution plate extends through and into the inner top wall of the hopper. The guide slide is located at the bottom of the distribution plate and communicates with the feed hopper.
[0004] The above-mentioned device also has the problem that even if the rice is evenly conveyed from the inside of the feed hopper to the rubber rollers through several sets of guide slides, the rice will not fall evenly onto the rubber rollers inside the guide slides and will gather in one place, resulting in uneven feeding. At the same time, after the separated rice husks and rice fall from the discharge plate, due to the lack of obstruction in the middle, the rice husks and rice will fall quickly, making it impossible for the dehulling mechanism to completely remove some of the rice husks stuck in the rice.
[0005] Therefore, it is necessary to provide a rice huller for rice processing to solve the above-mentioned technical problems. Utility Model Content
[0006] This utility model provides a rice huller for rice processing, which solves the problems of uneven feeding in the guide slide and the inability of the dehulling mechanism to completely remove some rice husks stuck in the rice.
[0007] To solve the above-mentioned technical problems, the rice huller for rice processing provided by this utility model includes: a box body, a feeding hopper installed at the top inlet of the box body, several sets of guide pipes evenly installed at the top of the box body, the guide pipes communicating with the feeding hopper, several sets of rotating shafts evenly installed between the inner walls of the front and rear sides of the upper end of the box body, rubber rollers installed on the outer walls of the several sets of rotating shafts, the rear ends of the several sets of rotating shafts extending through to the outer wall of the box body, and gears installed at the rear ends of the rotating shafts, the several sets of gears meshing with each other, a mounting plate installed on the outer wall of the rear end of the box body, a motor installed on the top of the mounting plate, the output end of the motor being fixedly connected to the outer wall of a set of gears, a second pulley installed on the outer wall of the output end of the motor, and the front and rear sides of the left end of the box body... A reciprocating lead screw is rotatably connected between the inner walls of both sides. A transmission rod is installed at the rear end of the reciprocating lead screw, which extends to the outside of the housing. A pulley is installed at the outer end of the transmission rod, and a belt is installed between the pulley and the second pulley. A threaded block is threadedly connected to the reciprocating lead screw. A guide rod is installed between the inner walls of the front and rear sides of the right end of the housing. A rectangular block is slidably connected to the outer wall of the guide rod. A scraper is installed between the outer wall of the rectangular block and the threaded block. A guide plate is installed on the inner walls of both the left and right sides of the housing. Several sets of guide plates are installed alternately between the inner walls of the front and rear ends of the housing. A discharge pipe is installed at the bottom of the housing. An air supply assembly is installed on the outer wall of the right end of the housing. A rectangular cover is installed on the outer wall of the left end of the housing.
[0008] Preferably, the air supply assembly includes a protective cover, which is fixedly installed on the outer wall of the right end of the housing, and the outer wall of the protective cover is evenly provided with a plurality of round holes.
[0009] Preferably, a rectangular plate is installed between the inner walls of the front and rear sides of the protective cover, and a fan is installed on the left side wall of the rectangular plate.
[0010] Preferably, a side door is installed on the rear outer wall of the housing via a plurality of composite hinges, and a handle is installed on the outer wall of the side door.
[0011] Preferably, the scraper is made of rubber.
[0012] Preferably, several sets of support legs are evenly installed at the bottom of the box.
[0013] Compared with related technologies, the rice huller for rice processing provided by this utility model has the following beneficial effects:
[0014] This utility model provides a rice huller for rice processing. When the output end of the motor rotates, the transmission rod is driven to rotate continuously through the mutual linkage of belt pulley one and belt pulley two. The transmission rod drives the threaded block to move back and forth through the reciprocating screw, so that the scraper moves back and forth along the guide rod, continuously spreading the rice piled on the rubber roller evenly, so as to achieve the purpose of uniform feeding.
[0015] The separated rice husks and rice grains will fall sequentially onto each set of guide plates 2 via guide plate 1. The additional sets of guide plates 2 extend the time for the rice husks and rice grains to fall, making it easier for the air supply component to blow away the rice husks trapped in the rice grains. Attached Figure Description
[0016] Figure 1 A schematic diagram of a preferred embodiment of the rice huller for rice processing provided by this utility model;
[0017] Figure 2 for Figure 1 The diagram shows the internal structure of the side door.
[0018] Figure 3 for Figure 1 The diagram shows the internal structure of the box.
[0019] Figure 4 for Figure 1 The diagram shows the structure of the second type of guide vane.
[0020] Figure 5 for Figure 3 The enlarged schematic diagram of part A shown below;
[0021] Figure 6 for Figure 4 The enlarged schematic diagram of part B is shown.
[0022] The following are the labels in the diagram: 1. Box body, 2. Mounting plate, 3. Air supply assembly, 31. Protective cover, 32. Round hole, 33. Rectangular plate, 34. Fan, 4. Feed hopper, 5. Gear, 6. Transmission rod, 7. Belt pulley one, 8. Motor, 9. Rectangular cover, 10. Side door, 11. Discharge pipe, 12. Hinge, 13. Handle, 14. Rubber roller, 15. Guide pipe, 16. Rotating shaft, 17. Guide plate one, 18. Guide plate two, 19. Reciprocating screw, 20. Scraper, 21. Belt pulley two, 22. Rectangular block, 23. Guide rod, 24. Belt, 25. Threaded block. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic diagram of a preferred embodiment of the rice huller for rice processing provided by this utility model; Figure 2 for Figure 1The diagram shows the internal structure of the side door. Figure 3 for Figure 1 The diagram shows the internal structure of the box.
[0025] Figure 4 for Figure 1 The diagram shows the structure of the second type of guide vane. Figure 5 for Figure 3 The enlarged schematic diagram of part A shown below; Figure 6 for Figure 4 The enlarged schematic diagram of part B is shown. A rice huller for rice processing includes: a housing 1, a feed hopper 4 installed at the top inlet of the housing 1, several sets of guide pipes 15 evenly installed inside the top of the housing 1, the guide pipes 15 communicating with the feed hopper 4, several sets of rotating shafts 16 evenly installed between the inner walls of the front and rear sides of the upper end of the housing 1, rubber rollers 14 installed on the outer walls of the several sets of rotating shafts 16, the rubber rollers 14 being directly below the guide pipes 15, the rear ends of the several sets of rotating shafts 16 extending through to the outer wall of the housing 1, and gears 5 installed at the rear ends of the rotating shafts 16, the gears 5 meshing with each other, a mounting plate 2 installed on the outer wall of the rear end of the housing 1, a motor 8 installed on the top of the mounting plate 2, the output end of the motor 8 being fixedly connected to the outer wall of one set of gears 5, a pulley 21 installed on the outer wall of the output end of the motor 8, and a reciprocating screw 19 rotatably connected between the inner walls of the front and rear sides of the left end of the housing 1, the rear end of the reciprocating screw 19... A transmission rod 6 is installed at one end, extending through to the outside of the housing 1. A pulley 7 is installed at the outer end of the transmission rod 6. A belt 24 is installed between the pulley 7 and the pulley 21. A threaded block 25 is threadedly connected to the reciprocating screw 19. A guide rod 23 is installed between the inner walls of the front and rear sides of the right end of the housing 1. A rectangular block 22 is slidably connected to the outer wall of the guide rod 23. A scraper 20 is installed between the outer wall of the rectangular block 22 and the threaded block 25. A guide plate 17 is installed on the inner walls of both the left and right sides of the housing 1. The guide plate 17 is located directly below the rubber roller 14. Several sets of guide plates 18 are installed alternately between the inner walls of the front and rear ends of the housing 1. The several sets of guide plates 18 are all inclined downwards. A discharge pipe 11 is installed at the bottom of the housing 1. An air supply assembly 3 is installed on the outer wall of the right end of the housing 1. A rectangular cover 9 is installed on the outer wall of the left end of the housing 1. The rectangular cover 9 communicates with the inside of the housing 1.
[0026] The air supply assembly 3 includes a protective cover 31, which is fixedly installed on the outer wall of the right end of the housing 1. The outer wall of the protective cover 31 is evenly provided with several sets of round holes 32, which penetrate the outer wall of the housing 1 at the connection between the protective cover 31 and the housing 1.
[0027] A rectangular plate 33 is installed between the inner walls of the front and rear sides of the protective cover 31. A fan 34 is installed on the left side wall of the rectangular plate 33. When it is necessary to separate and discharge the rice husks, the fan 34 is turned on so that when the rice husks and rice fall on several sets of guide plates 18, the lighter rice husks are blown out of the box 1 through the rectangular cover 9, thus completing the separation and discharge of the rice husks.
[0028] The rear outer wall of the housing 1 is fitted with a side door 10 via a number of assembly hinges 12. The outer wall of the side door 10 is fitted with a handle 13. The side door 10 can be opened by pulling the handle 13 outward, which facilitates the maintenance of the internal devices of the housing 1.
[0029] The scraper 20 is made of rubber, which prevents the scraper 20 from damaging the outer wall of the rubber roller 14 during movement.
[0030] Several sets of support legs are evenly installed at the bottom of the box 1.
[0031] The working principle of the rice huller for rice processing provided by this utility model is as follows: The motor 8 is started, and the output end of the motor 8 drives several other sets of gears 5 to rotate through a set of gears 5. These gears 5, in turn, drive several sets of rubber rollers 14 to rotate through a rotating shaft 16. The rice to be processed is conveyed through the feed hopper 4 and several sets of guide pipes 15 onto the rubber rollers 14. The rotating rubber rollers 14 dehull the rice, and the separated husks and rice grains fall sequentially onto guide plates 18 through guide plate 17, and are finally discharged from the box through the discharge pipe 11. As rice husks and rice flow between the two sets of guide plates 18, the air supply component 3 continuously blows air into the box 1, blowing the lighter rice husks away from the rice and then discharging them from the box 1 through the rectangular cover 9. While the output end of the motor 8 rotates, the transmission rod 6 is driven to rotate continuously through the interaction of the pulley 7, the pulley 21, and the belt 24. The transmission rod 6 continuously drives the threaded block 25 to move back and forth through the reciprocating screw 19, causing the scraper 20 to move back and forth along the guide rod 23, continuously spreading the rice grains piled on the rubber roller 14 evenly.
[0032] Compared with related technologies, the rice huller for rice processing provided by this utility model has the following beneficial effects:
[0033] While the output end of the motor 8 is rotating, the transmission rod 6 is driven to rotate continuously through the mutual linkage of the pulley 7, the pulley 21 and the belt 24. The transmission rod 6 drives the threaded block 25 to move back and forth through the reciprocating screw 19, so that the scraper 20 moves back and forth along the guide rod 23, continuously spreading the rice piled on the rubber roller 14 evenly, so as to achieve the purpose of uniform feeding.
[0034] The separated rice husks and rice grains will fall sequentially onto the various sets of guide plates 18 via the first guide plate 17. The additional sets of guide plates 18 extend the time for the rice husks and rice grains to fall, making it easier for the air supply component 3 to blow away the rice husks trapped in the rice grains.
[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A rice huller for rice processing, characterized in that, include: The box has a feed hopper installed at the top inlet. Several sets of guide pipes are evenly installed on the top of the box, communicating with the feed hopper. Several sets of rotating shafts are evenly installed between the inner walls of the front and rear sides of the upper end of the box. Each set of rotating shafts has a rubber roller installed on its outer wall. The rear ends of each set of rotating shafts extend through to the outer wall of the box, and gears are installed at the rear ends of each shaft. These gears mesh with each other. A mounting plate is installed on the outer wall of the rear end of the box, and a motor is mounted on the top of the mounting plate. The output end of the motor is fixedly connected to the outer wall of one set of gears. A second pulley is installed on the outer wall of the motor's output end. A reciprocating screw is rotatably connected between the inner walls of the front and rear sides of the left end of the box. The reciprocating screw has a transmission rod installed at its rear end, which extends through to the outside of the housing. A pulley is installed at the outer end of the transmission rod, and a belt is installed between pulley one and pulley two. A threaded block is threadedly connected to the reciprocating screw. A guide rod is installed between the inner walls of the front and rear sides of the right end of the housing. A rectangular block is slidably connected to the outer wall of the guide rod. A scraper is installed between the outer wall of the rectangular block and the threaded block. A guide plate is installed on the inner walls of both the left and right sides of the housing. Several sets of guide plates are installed alternately between the inner walls of the front and rear ends of the housing. A discharge pipe is installed at the bottom of the housing. An air supply assembly is installed on the outer wall of the right end of the housing. A rectangular cover is installed on the outer wall of the left end of the housing.
2. The rice huller for rice processing according to claim 1, characterized in that, The air supply assembly includes a protective cover, which is fixedly installed on the outer wall of the right end of the housing. The outer wall of the protective cover is evenly provided with several sets of round holes.
3. The rice huller for rice processing according to claim 2, characterized in that, A rectangular plate is installed between the inner walls of the front and rear sides of the protective cover, and a fan is installed on the left side wall of the rectangular plate.
4. The rice huller for rice processing according to claim 1, characterized in that, The rear outer wall of the enclosure is fitted with a side door via a series of hinges, and the outer wall of the side door is fitted with a handle.
5. The rice huller for rice processing according to claim 1, characterized in that, The scraper is made of rubber.
6. The rice huller for rice processing according to claim 1, characterized in that, Several sets of support legs are evenly installed at the bottom of the box.
Citation Information
Patent Citations
Rice huller for rice processing
CN220803408U