Rice bran removing machine for fine rice processing

The rice bran removal machine, which uses wind separation and filter plate filtration, solves the problems of high noise and severe dust in traditional rice bran removal methods, achieving efficient rice bran removal and environmental improvement.

CN224486752UActive Publication Date: 2026-07-14ZHIJIANG JINMU RICE IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHIJIANG JINMU RICE IND CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional rice bran removal methods are noisy, generate significant dust, and are incomplete, affecting rice quality and the health of the operating environment.

Method used

The rice bran removal machine, driven by a blower and a motor, uses wind power to separate rice bran and rice, filters dust with a filter plate, improves separation efficiency through the design of guide plates and distribution plates, and adjusts the feeding rate through a control mechanism.

Benefits of technology

It effectively reduced airborne dust content, improved rice bran removal, improved the operating environment, and ensured rice quality and the health of staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to rice finishing technology field, specifically speaking is a kind of rice bran removal machine for rice processing, including placing table, wind bucket and motor, the wind bucket fixed mounting is placed on placing table, the motor fixed mounting is on the surface of wind bucket, the output shaft of motor is connected rotationally through wind bucket side wall, and surface fixedly connected has fan blade, the surface of wind bucket is provided with discharge box, discharge gate, the discharge box is provided with control mechanism, and the side of wind bucket is connected with air outlet through, the surface fixedly connected with connecting pipe of air outlet, through wind bucket cooperation storage bag, can carry out screening in rice rice bran in rice, dust in rice bran is controlled in wind bucket simultaneously, is uniformly discharged through air outlet, cooperation filter plate can also filter the wind that blows first, effectively reduce the content of dust in air, to improve the operating environment of staff, ensure the physical and mental health of staff.
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Description

Technical Field

[0001] This utility model relates to the field of rice refining technology, specifically a rice bran removal machine for refining rice. Background Technology

[0002] Rice contains about 75% carbohydrates, 7% to 8% protein, 1.3% to 1.8% fat, and is rich in B vitamins, making it one of the staple foods in people's lives. The process of turning paddy rice into polished rice involves hulling, milling, polishing, and sorting. Among these processes, bran removal technology is a crucial step in the ultra-refining of rice. It removes residual bran from the rice, thereby improving the quality of the rice and facilitating subsequent processing.

[0003] Traditional rice bran removal methods involve using a vibrating screen to remove the bran. However, this method is not only noisy but also generates dust that can easily affect the health of workers. Furthermore, the vibrating screen method has the problem of incomplete bran removal, with some bran adhering to the surface of the rice grains, affecting the appearance and quality of the rice. Therefore, a rice bran removal machine for fine rice processing is proposed to address these issues. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology and solve at least one technical problem in the background technology, this utility model proposes a rice bran removal machine for rice processing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: the rice bran removal machine for rice processing described in this utility model includes a placement platform, a blower and a motor, wherein the blower is fixedly installed on the placement platform and the motor is fixedly installed on the surface of the blower.

[0006] The output shaft of the motor is rotatably connected through the side wall of the ventilation barrel, and fan blades are fixedly connected to its surface;

[0007] The surface of the air duct is provided with a feeding box and a discharge port, and the feeding box is provided with a quantity control mechanism;

[0008] An air outlet is connected through one side of the air duct, and a connecting pipe is fixedly connected to the surface of the air outlet. A storage bag is provided on the connecting pipe.

[0009] A support rod, one end of which is fixedly installed on the surface of the feeding box, and the other end is fixedly connected to the surface of the material cylinder.

[0010] Preferably, the quantity control mechanism includes an adjusting plate that is slidably connected through the feeding box, and a threaded rod is rotatably connected to the surface of the adjusting plate, the threaded rod passing through the support rod and being connected by threads.

[0011] Preferably, the surface of the feeding box is provided with a slot, the adjusting plate is slidably connected in the slot, and the side wall of the slot is provided with an angle.

[0012] Preferably, a distribution plate is fixedly connected to the inner wall of the air duct, and the surface of the distribution plate is provided with through holes. The distribution plate is in the shape of an inverted "V", and the diameter of the through holes on the surface of the distribution plate gradually increases from the highest point to both sides.

[0013] Preferably, a pair of guide plates are fixedly connected at the connection between the air duct and the material box, and the guide plates are arc-shaped.

[0014] Preferably, a filter plate is fixedly connected inside the air outlet, a connecting rod is rotatably connected to the surface of the filter plate, a scraper is fixedly connected to one end of the connecting rod and the scraper is attached to the surface of the filter plate, and the other end passes through the air outlet and is rotatably connected.

[0015] Preferably, the outer wall of the connecting pipe is provided with a stepped groove, a retaining ring is slidably sleeved on the surface of the connecting pipe, a fixed shaft is fixedly connected to the surface of the retaining ring, and a positioning hole is provided on the surface of the storage bag relative to the fixed shaft.

[0016] Preferably, at least two fixed shafts are provided, and they are symmetrically distributed about the central axis of the connecting pipe.

[0017] Preferably, the surface of the placement platform is connected to an adjustment seat via a thread, and an anti-slip pad is fixedly connected to the surface of the adjustment seat.

[0018] The advantages of this utility model are:

[0019] 1. This utility model uses a blower combined with a storage bag to sieve out rice bran and control the dust in the rice bran inside the blower, which is then discharged through the air outlet. With the help of a filter plate, the blown air can also be filtered first, effectively reducing the dust content in the air, thereby improving the working environment for workers and ensuring their physical and mental health.

[0020] 2. This utility model uses a guide plate to guide the rice in the feeding box to the distributing plate, and then the distributing plate separates the rice to both sides, so that the rice falls more loosely and over a wider area. In conjunction with the fan, it can achieve a better effect in removing rice bran. The gradually increasing aperture design allows the rice to be distributed to both sides more quickly when it is in the middle, thus avoiding the situation where all of it leaks out from the middle. Furthermore, the impact generated during the fall can also separate the rice grains from the rice bran, indirectly improving the removal effect of rice bran from the rice. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0022] Figure 1 This is a schematic diagram of the placement platform structure in Example 1;

[0023] Figure 2 This is a schematic diagram of the component plate structure in Example 1;

[0024] Figure 3 Example 1 Figure 2 Schematic diagram of the structure at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the air outlet in Embodiment 1;

[0026] Figure 5 Example 1 Figure 4 Schematic diagram of the structure at point B;

[0027] Figure 6 This is a schematic diagram of the adjustment seat structure in Example 2.

[0028] In the diagram: 1. Placement platform; 2. Motor; 3. Air duct; 5. Support rod; 6. Feed box; 7. Air outlet; 8. Storage bag; 9. Discharge port; 10. Slot; 11. Fan blade; 12. Weight plate; 13. Adjustment plate; 15. Threaded rod; 17. Filter plate; 18. Scraper; 19. Connecting rod; 21. Connecting pipe; 22. Fixed shaft; 23. Snap ring; 25. Adjustment seat. Detailed Implementation

[0029] 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.

[0030] Example 1

[0031] Please see Figure 1-5 As shown, a rice bran removal machine for rice processing includes a placement platform 1, a blower 3, and a motor 2. The blower 3 is fixedly installed on the placement platform 1, and the motor 2 is fixedly installed on the surface of the blower 3.

[0032] The output shaft of motor 2 is rotatably connected to the side wall of ventilation barrel 3, and fan blades 11 are fixedly connected to its surface;

[0033] The surface of the air duct 3 is provided with a feeding box 6 and a discharge port 9, and the feeding box 6 is provided with a quantity control mechanism;

[0034] An air outlet 7 is connected to one side of the air duct 3. A connecting pipe 21 is fixedly connected to the surface of the air outlet 7. A storage bag 8 is provided on the connecting pipe 21.

[0035] Support rod 5, one end of support rod 5 is fixedly installed on the surface of feeding box 6, and the other end is fixedly connected to the surface of material cylinder. The outer wall of connecting pipe 21 is provided with stepped groove. A retaining ring 23 is slidably sleeved on the surface of connecting pipe 21. A fixed shaft 22 is fixedly connected to the surface of retaining ring 23. A positioning hole is provided on the surface of storage bag 8 relative to the fixed shaft 22. At least two fixed shafts 22 are provided and are symmetrically distributed about the central axis of connecting pipe 21.

[0036] A filter plate 17 is fixedly connected inside the air outlet 7. A connecting rod 19 is rotatably connected to the surface of the filter plate 17. A scraper 18 is fixedly connected to one end of the connecting rod 19. The scraper 18 is attached to the surface of the filter plate 17, and the other end passes through the air outlet 7 and is rotatably connected.

[0037] During operation, first move the retaining ring 23 upwards, then flip the storage bag 8 down after passing through the stepped groove, so that the positioning hole on the surface of the storage bag 8 is engaged with the fixed shaft 22. Then, under the gravity of the storage bag 8, the retaining ring 23 is engaged with the surface of the stepped groove, thus realizing the installation of the storage bag 8. At this time, start the motor 2, so that the motor 2 drives the fan to rotate. Then, the rice to be screened is poured into the feeding box 6. The feeding amount of rice is controlled by the adjustment mechanism. Because the mass of rice is greater than the mass of rice bran, the falling rice and rice bran are driven by the airflow. The rice bran is blown towards the air outlet 7. At this time, the filter plate 17 in the air outlet 7 filters the rice bran and then falls into the storage bag 8. After removing rice bran from the rice, the rice is collected or transported to the next process through the discharge port 9. The rice bran can be screened out by the air blower 3 in conjunction with the storage bag 8, and the dust in the rice bran is controlled in the air blower 3 and discharged uniformly through the air outlet 7. The air blown out can also be filtered by the filter plate 17 to effectively reduce the dust content in the air, thereby improving the working environment of the staff and ensuring their physical and mental health. When the filter screen becomes clogged after a long period of use, the connecting rod 19 is rotated, which drives the scraper 18 to scrape and clean the surface of the filter plate 17, ensuring the ventilation effect of the filter plate 17.

[0038] The quantity control mechanism includes an adjusting plate 13, which is slidably connected through the feeding box 6. A threaded rod 15 is rotatably connected to the surface of the adjusting plate 13. The threaded rod 15 passes through the support rod 5 and is connected by threads. A slot 10 is provided on the surface of the feeding box 6. The adjusting plate 13 is slidably connected in the slot 10. An angle is provided on the side wall of the slot 10.

[0039] During operation, rotating the threaded rod 15 clockwise moves it closer to the feeding box 6, while rotating it counterclockwise moves it away. By turning the threaded rod 15, the size of the feeding port at the bottom of the feeding box 6 is adjusted by driving the adjusting plate 13, thereby adjusting the falling speed of the rice. The falling rate can be adjusted for rice with different gluten content, effectively ensuring that the screening efficiency is always maximized. The bevel on the surface of the slot 10 can prevent rice grains from remaining in the slot 10, which would affect the closing of the adjusting plate 13 and prevent the feeding port from closing completely.

[0040] A weight plate 12 is fixedly connected to the inner wall of the air duct 3. The surface of the weight plate 12 has through holes. The weight plate 12 is inverted "V" shape. The diameter of the through holes on the surface of the weight plate 12 gradually increases from the highest point to both sides. A pair of guide plates are fixedly connected at the connection between the air duct 3 and the feeding box 6. The guide plates are arc-shaped.

[0041] During operation, the rice in the feeding box 6 is guided by the guide plate to the distributing plate, which then distributes the rice to both sides, making the rice fall more scattered over a wider area. This, combined with the fan, can achieve a better effect in removing rice bran. The gradually increasing aperture design allows the rice to be distributed to both sides more quickly when it is in the middle, thus preventing it from all leaking out from the middle. Furthermore, the impact generated during the fall can also separate the rice grains from the rice bran, indirectly improving the removal effect of rice bran from the rice.

[0042] Example 2

[0043] Please see Figure 6 As shown in the first embodiment, as another implementation of this utility model, the surface of the placement platform 1 is connected to an adjustment seat 25 by a thread, and an anti-slip pad is fixedly connected to the surface of the adjustment seat 25. During operation, the horizontality of the placement of the air duct 3 can be adjusted by the adjustment seat 25, thereby ensuring the stability of the placement platform 1 and avoiding shaking and noise. At the same time, long-term twisting will also affect the rotation of the fan. After a long period of use, the fan will deform, thereby reducing its service life.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A rice bran removal machine for polished rice processing, characterized in that: It includes a placement platform (1), a blower (3) and a motor (2), wherein the blower (3) is fixedly installed on the placement platform (1) and the motor (2) is fixedly installed on the surface of the blower (3); The output shaft of the motor (2) is rotatably connected to the side wall of the ventilation barrel (3), and a fan blade (11) is fixedly connected to its surface. The surface of the air duct (3) is provided with a feeding box (6) and a discharge port (9), and the feeding box (6) is provided with a quantity control mechanism; An air outlet (7) is connected through one side of the air duct (3), and a connecting pipe (21) is fixedly connected to the surface of the air outlet (7). A storage bag (8) is provided on the connecting pipe (21). Support rod (5), one end of which is fixedly installed on the surface of the feeding box (6), and the other end is fixedly connected to the surface of the material cylinder.

2. The rice bran removal machine for polished rice processing according to claim 1, characterized in that: The quantity control mechanism includes an adjusting plate (13), which is slidably connected through the feeding box (6). A threaded rod (15) is rotatably connected to the surface of the adjusting plate (13), and the threaded rod (15) passes through the support rod (5) and is connected by a thread.

3. The rice bran removal machine for polished rice processing according to claim 2, characterized in that: The surface of the feeding box (6) is provided with a slot (10), the adjusting plate (13) is slidably connected in the slot (10), and the side wall of the slot (10) is provided with an angle.

4. The rice bran removal machine for polished rice processing according to claim 3, characterized in that: The inner wall of the air duct (3) is fixedly connected to a component plate (12). The surface of the component plate (12) is provided with through holes. The component plate (12) is in the shape of an inverted "V". The diameter of the through holes on the surface of the component plate (12) gradually increases from the highest point to both sides.

5. A rice bran removal machine for polished rice processing according to claim 4, characterized in that: A pair of guide plates are fixedly connected at the connection between the air duct (3) and the material box (6), and the guide plates are arc-shaped.

6. A rice bran removal machine for polished rice processing according to claim 5, characterized in that: A filter plate (17) is fixedly connected inside the air outlet (7). A connecting rod (19) is rotatably connected to the surface of the filter plate (17). A scraper (18) is fixedly connected to one end of the connecting rod (19). The scraper (18) is attached to the surface of the filter plate (17), and the other end is rotatably connected through the air outlet (7).

7. A rice bran removal machine for polished rice processing according to claim 6, characterized in that: The outer wall of the connecting pipe (21) is provided with a stepped groove, and a retaining ring (23) is slidably sleeved on the surface of the connecting pipe (21). A fixed shaft (22) is fixedly connected to the surface of the retaining ring (23), and a positioning hole is provided on the surface of the storage bag (8) relative to the fixed shaft (22).

8. A rice bran removal machine for polished rice processing according to claim 7, characterized in that: At least two fixed shafts (22) are provided, and they are symmetrically distributed around the central axis of the connecting pipe (21).

9. A rice bran removal machine for polished rice processing according to claim 8, characterized in that: The surface of the placement platform (1) is connected to an adjustment seat (25) by a thread, and the surface of the adjustment seat (25) is fixedly connected to an anti-slip pad.