Rice husking machine for rice processing

Abstract

The utility model discloses a rice mill for rice processing, which belongs to the field of rice processing and comprises a shell, a movable milling block is rotatably arranged on the top wall of the shell, a feed hopper is fixedly arranged above the movable milling block, a fixed milling block is fixedly arranged below the movable milling block, and the fixed milling block comprises a filter screen plate and a bottom funnel. Supporting columns are fixedly arranged on the bottom wall of the filter screen plate, a circulating groove is fixedly formed in the bottom end of the bottom funnel and penetrates through the vibrating screen, the vibrating screen is obliquely arranged, a flow guide hopper is fixedly arranged below the vibrating screen, and a waste opening is formed in the bottom end of the flow guide hopper. In the milling process, rice slowly flows into the vibrating screen below along the milling gap, and part of rice hulls fall into the bottom funnel through the filter screen plate in the milling process, pass through the circulating groove and are finally discharged into the collecting box together with the rice hulls screened out by the vibrating screen from the waste opening. The effect of filtering the rice hulls in the milling process and after milling is completed can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of rice processing, specifically to a rice milling machine for rice processing. Background Technology

[0002] A rice milling machine is a mechanical device used to process paddy rice into rice. It is widely used in homes, farms, and rice processing plants. The main function of a rice milling machine is to physically remove the outer husk and bran of the paddy rice, retaining the edible part inside, which is the rice we eat daily. Rice milling machines not only improve work efficiency and reduce manual labor intensity, but also, to a certain extent, ensure the quality and nutritional value of the rice.

[0003] Traditional rice milling machines remove the husks and bran by placing rice inside a milling drum and having it rotated by the milling rollers, creating friction between the rice grains and between the rice and the milling rollers. However, as the milling process continues, the amount of husks inside the milling drum gradually increases. If not cleaned in time, this can affect the milling process and cause husks and rice to accumulate in the milling gaps, reducing the efficiency of rice husk removal. Therefore, we provide a rice milling machine that can filter out some of the husks during the rice husk removal process and filter out the husks again after the milling is complete. Utility Model Content

[0004] To address the technical problem that as rice milling progresses, the amount of rice husks inside the milling cylinder gradually increases, and if not cleaned in time, it will affect the rice milling process to some extent, easily leading to the accumulation of rice husks and rice in the milling gap, reducing the efficiency of rice dehulling, this utility model provides a rice milling machine for rice processing.

[0005] A rice milling machine for rice processing includes a shell. A movable grinding block is rotatably mounted on the top wall of the shell. A feed hopper is fixedly mounted above the movable grinding block. A fixed grinding block is fixedly mounted below the movable grinding block. The fixed grinding block includes a filter screen and a bottom funnel. A support column is fixedly mounted on the bottom wall of the filter screen. A flow channel is fixedly mounted at the bottom end of the bottom funnel. The flow channel passes through a vibrating screen. The vibrating screen is inclined. A guide hopper is fixedly mounted below the vibrating screen. A waste outlet is provided at the bottom end of the guide hopper.

[0006] Furthermore, the movable grinding block includes a hollow tube that penetrates the top wall of the housing and is rotatably mounted. An arc-shaped grinding block with a high center and low periphery is fixedly mounted on the bottom wall of the hollow tube. A limit ring is fixedly mounted on the side wall of the housing, and a limit groove is fixedly mounted on the side wall of the limit ring. A slider is mounted at a corresponding position on the outer wall of the arc-shaped grinding block, and the slider can slide and rotate inside the limit groove.

[0007] Furthermore, a gear ring is fixedly installed on the outer wall of the hollow tube, and a drive gear is rotatably installed on the top wall of the housing. The drive gear is located on the output end of the servo motor, and the gear ring and the drive gear are movably connected by a gear belt.

[0008] Furthermore, a support frame is fixedly installed on the top wall of the shell, the feed hopper is fixedly installed on the support frame, and the outer diameter of its bottom outlet is smaller than the inner diameter of the hollow tube. Support legs are fixedly installed on the bottom wall of the shell, and collection boxes are movably placed below the waste outlet and below the inclined lower end of the vibrating screen.

[0009] Furthermore, several crossbars are fixedly installed on the inner wall of the waste inlet, and the other end of the crossbars is fixedly connected to the outer wall of the bottom of the support column. The filter screen is an arc-shaped structure with a high center and low periphery, and its inclination arc is consistent with the inclination arc of the arc-shaped grinding block. A grinding gap is formed between the two, which can be used to grind rice. The filter screen and the vibrating screen have the same screen hole diameter, which can be used to filter and screen rice husks.

[0010] Furthermore, the bottom funnel is fixedly installed on the bottom wall of the filter screen plate, and both it and the guide funnel are arc-shaped structures with a low center and high sides. A through hole is provided through the center of the vibrating screen, and a flow port is formed between the inner wall of the flow channel and the outer wall of the support column. The outer wall of the flow channel is slidably connected to the inner wall of the through hole.

[0011] Furthermore, a support block is fixedly installed on the inner wall of the shell, and a discharge chute is provided through the side wall of the shell at the lower inclined end of the vibrating screen. A guide plate is fixedly installed at the lower inclined end of the vibrating screen, and the guide plate is provided through the discharge chute. Elastic elements are fixedly installed on the top wall of the support block and the bottom wall of the discharge chute. The top of the elastic elements is fixedly connected to the bottom wall of the vibrating screen and the bottom wall of the guide plate, respectively. A vibrating motor is fixedly installed on the bottom wall of the vibrating screen.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the rice falls into the hollow tube and flows into the grinding gap. The rotating movable grinding block enables the grinding operation between the movable grinding block and the fixed grinding block. During the grinding process, the rice slowly flows along the grinding gap into the vibrating screen below. Some of the rice husks fall into the bottom funnel through the filter screen during the grinding process, and are finally discharged from the waste port into the collection box along with the rice husks screened out by the vibrating screen through the flow channel. The husks are then guided along the vibrating screen flow guide plate and enter another collection box for collection. This can filter the rice husks during and after the grinding process, which to a certain extent avoids the accumulation of rice husks in the grinding gap and improves the grinding efficiency. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the waste inlet 10 of the present invention.

[0015] Figure 3 This is a schematic diagram of part A of the structure of this utility model;

[0016] Figure 4 This is a schematic diagram of part B of the structure of this utility model;

[0017] Figure 5 This is a schematic diagram of part C of the present invention.

[0018] In the diagram: 1. Shell; 2. Movable grinding block; 3. Fixed grinding block; 4. Filter screen; 5. Bottom funnel; 6. Support column; 7. Flow channel; 8. Vibrating screen; 9. Guide hopper; 10. Waste outlet; 11. Feed hopper; 12. Hollow tube; 13. Arc-shaped grinding block; 14. Limiting ring; 15. Limiting groove; 16. Slider; 17. Gear ring; 18. Drive gear; 19. Servo motor; 20. Gear belt; 21. Support frame; 22. Collection box; 23. Grinding gap; 24. Flow port; 25. Through hole; 26. Support block; 27. Discharge chute; 28. Elastic element; 29. ​​Guide plate; 30. Vibrating motor; 31. Crossbar. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0021] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, some of the aforementioned terms, besides indicating location or positional relationships, may also have other meanings. For example, the term "above" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Additionally, the term "multiple" should mean two or more.

[0023] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The following will refer to the accompanying drawings. Figures 1-5 The present invention will be described in detail with reference to the embodiments.

[0024] A rice milling machine for rice processing includes a housing 1. A support leg is fixedly installed on the bottom wall of the housing 1 to support the entire rice milling machine. A movable grinding block 2 is rotatably installed on the top wall of the housing 1. A feed hopper 11 is fixedly installed above the movable grinding block 2. The movable grinding block 2 includes a hollow tube 12 that penetrates the top wall of the housing 1 and is rotatably installed. Rice grains fall from the feed hopper 11 onto the hollow tube 12 below. A support frame 21 is fixedly installed on the top wall of the housing 1. The feed hopper 11 is fixedly installed on the support frame 21, and its bottom outlet outer diameter is smaller than the inner diameter of the hollow tube 12, which can ensure that the rice grains will not fall out of the hollow tube 12 and that the feed hopper 11 will not affect the rotation of the hollow tube 12.

[0025] A curved grinding block 13 with a high center and low periphery is fixedly installed on the bottom wall of the hollow tube 12. A limiting ring 14 is fixedly installed on the side wall of the shell 1, and a limiting groove 15 is fixedly installed on the side wall of the limiting ring 14. A slider 16 is installed at a corresponding position on the outer wall of the curved grinding block 13. The slider 16 can slide and rotate inside the limiting groove 15. When the curved grinding block 13 rotates and grinds, it can drive the slider 16 to rotate along the limiting groove 15, which enhances the stability of the rotation of the curved grinding block 13.

[0026] A gear ring 17 is fixedly installed on the outer wall of the hollow tube 12, and a drive gear 18 is rotatably installed on the top wall of the housing 1. The drive gear 18 is located on the output end of the servo motor 19, and the gear ring 17 and the drive gear 18 are movably connected by a gear belt 20. When the servo motor 19 is started, it drives the drive gear 18 to rotate. Under the synchronous action of the gear belt 20, the gear ring 17 is driven to rotate, which in turn drives the hollow tube 12 to rotate synchronously. This further drives the arc-shaped grinding block 13 to rotate relative to the fixed grinding block 3, thus grinding and removing the husks from the rice grains that fall into the grinding gap.

[0027] A fixed grinding block 3 is fixedly installed below the movable grinding block 2. The fixed grinding block 3 includes a filter screen plate 4 and a bottom funnel 5. The filter screen plate 4 has an arc-shaped structure with a high center and low edges, and its inclination arc is consistent with the inclination arc of the arc-shaped grinding block 13. The two form a grinding gap 23, which can be used to grind rice. It can also ensure that the width of the grinding gap 23 is consistent, so that rice can be ground. The filter screen plate 4 and the screen hole diameter of the vibrating screen 8 are the same, which can be used to filter and screen rice husks.

[0028] During the grinding process, some of the rice husks pass through the sieve holes of the filter screen plate 4 and enter the bottom funnel 5 below. Since the bottom wall of the filter screen plate 4 is fixedly equipped with a support column 6, and the bottom end of the bottom funnel 5 is fixedly equipped with a flow channel 7, which passes through the vibrating screen 8, the rice husks slide down the arc direction of the bottom funnel 5 onto the flow channel 7.

[0029] The bottom funnel 5 is fixedly installed on the bottom wall of the filter screen plate 4, and both it and the guide hopper 9 are arc-shaped structures with a low center and high sides. A through hole 25 is provided through the center of the vibrating screen 8. A flow port 24 is formed between the inner wall of the flow channel 7 and the outer wall of the support column 6. The outer wall of the flow channel 7 is slidably connected to the inner wall of the through hole 25, which can ensure that the flow channel 7 will not affect the up and down vibration of the vibrating screen 8. The rice husks fall into the guide hopper 9 below along the flow port 24.

[0030] The vibrating screen 8 is inclined, and a guide bucket 9 is fixedly installed below the vibrating screen 8. A waste port 10 is provided at the bottom of the guide bucket 9. A collection box 22 is movably placed below the waste port 10 and below the inclined lower end of the vibrating screen 8. Several crossbars 31 are fixedly installed on the inner side wall of the waste port 10. The other end of the crossbars 31 is fixedly connected to the outer wall of the bottom end of the support column 6, so that the support column 6 can be fixed.

[0031] The rice husks that fall from the flow outlet 24 onto the guide hopper 9, including those screened by the vibrating screen 8, pass through the waste outlet 10 and fall into the collection box 22 below for unified collection and convenient subsequent processing.

[0032] A support block 26 is fixedly installed on the inner wall of the housing 1. A discharge chute 27 is provided through the side wall of the housing 1 at the lower inclined end of the vibrating screen 8. A guide plate 29 is fixedly installed at the lower inclined end of the vibrating screen 8 and is provided through the discharge chute 27. An elastic element 28 is fixedly installed on the top wall of the support block 26 and the bottom wall of the discharge chute 27. The top of the elastic element 28 is fixedly connected to the bottom wall of the vibrating screen 8 and the bottom wall of the guide plate 29, respectively. A vibration motor 30 is fixedly installed on the bottom wall of the vibrating screen 8.

[0033] Start the vibration motor 30, which drives the vibrating screen 8 to vibrate up and down under the rebound action of the elastic element 28, so that the rice can be thrown up and fall down, making it easier for the rice husks to be screened below the vibrating screen 8, while the rice moves along the guide plate 29 of the vibrating screen 8, and after passing through the discharge chute 27, it falls into the collection box 22 for unified collection.

[0034] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rice milling machine for rice processing, comprising a housing (1), characterized in that: The top wall of the shell (1) is rotatably provided with a movable grinding block (2), a feed hopper (11) is fixedly provided above the movable grinding block (2), and a fixed grinding block (3) is fixedly provided below the movable grinding block (2). The fixed grinding block (3) includes a filter screen plate (4) and a bottom funnel (5). A support column (6) is fixedly provided on the bottom wall of the filter screen plate (4). A flow channel (7) is fixedly provided at the bottom end of the bottom funnel (5). The flow channel (7) passes through the vibrating screen (8). The vibrating screen (8) is inclined. A guide hopper (9) is fixedly provided below the vibrating screen (8). A waste port (10) is provided at the bottom end of the guide hopper (9).

2. The rice milling machine for rice processing according to claim 1, characterized in that: The movable grinding block (2) includes a hollow tube (12) that penetrates the top wall of the shell (1) and is rotatably arranged. An arc-shaped grinding block (13) with a high center and low periphery is fixedly arranged on the bottom wall of the hollow tube (12). A limiting ring (14) is fixedly arranged on the side wall of the shell (1). A limiting groove (15) is fixedly arranged on the side wall of the limiting ring (14). A slider (16) is arranged at a corresponding position on the outer wall of the arc-shaped grinding block (13). The slider (16) can slide and rotate inside the limiting groove (15).

3. A rice milling machine for rice processing according to claim 2, characterized in that: A gear ring (17) is fixedly installed on the outer wall of the hollow tube (12), and a drive gear (18) is rotatably installed on the top wall of the housing (1). The drive gear (18) is installed on the output end of the servo motor (19), and the gear ring (17) and the drive gear (18) are movably connected by a gear belt (20).

4. A rice milling machine for rice processing according to claim 3, characterized in that: A support frame (21) is fixedly installed on the top wall of the shell (1), and the feed hopper (11) is fixedly installed on the support frame (21). The outer diameter of its bottom outlet is smaller than the inner diameter of the hollow tube (12). A support leg is fixedly installed on the bottom wall of the shell (1). A collection box (22) is movably placed below the waste port (10) and below the inclined lower end of the vibrating screen (8).

5. A rice milling machine for rice processing according to claim 4, characterized in that: Several crossbars (31) are fixedly installed on the inner side wall of the waste inlet (10). The other end of the crossbars (31) is fixedly connected to the bottom outer wall of the support column (6). The filter screen (4) is an arc-shaped structure with a high center and low periphery. Its inclination arc is consistent with the inclination arc of the arc-shaped grinding block (13). A grinding gap (23) is formed between the two, which can be used to grind rice. The filter screen (4) and the vibrating screen (8) have the same sieve hole diameter, which can be used to filter and screen rice husks.

6. A rice milling machine for rice processing according to claim 5, characterized in that: The bottom funnel (5) is fixedly installed on the bottom wall of the filter screen plate (4), and both it and the guide funnel (9) are arc-shaped structures with a low center and high sides. A through hole (25) is provided through the center of the vibrating screen (8). A flow port (24) is formed between the inner wall of the flow channel (7) and the outer wall of the support column (6). The outer wall of the flow channel (7) is slidably connected to the inner wall of the through hole (25).

7. A rice milling machine for rice processing according to claim 6, characterized in that: A support block (26) is fixedly installed on the inner wall of the shell (1). A discharge chute (27) is provided through the side wall of the shell (1) at the lower inclined end of the vibrating screen (8). A guide plate (29) is fixedly installed at the lower inclined end of the vibrating screen (8). The guide plate (29) is provided through the discharge chute (27). An elastic element (28) is fixedly installed on the top wall of the support block (26) and the bottom wall of the discharge chute (27). The top of the elastic element (28) is fixedly connected to the bottom wall of the vibrating screen (8) and the bottom wall of the guide plate (29) respectively. A vibrating motor (30) is fixedly installed on the bottom wall of the vibrating screen (8).

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