Filtering device for rice processing

Abstract

The application relates to the technical field of rice processing, in particular to a filtering device for rice processing, which comprises a box body, a hopper is fixedly connected to the middle position of the upper end of the box body, dredging mechanism, shunting mechanism and filtering mechanism are arranged in the box body, the dredging mechanism is located at the upper end of the shunting mechanism, and the dredging mechanism is used for dredging rice in the hopper; the filtering mechanism is provided with two groups and is located on the left and right sides of the shunting mechanism, the shunting mechanism is located directly below the hopper, and the shunting mechanism is used for shunting the rice falling from the hopper so as to facilitate the rice to enter the left filtering mechanism or the right filtering mechanism; fixing assemblies are arranged on the front and back sides of the box body, the fixing assemblies are used for fixing the shunting mechanism so as to facilitate the shunting mechanism to keep shunting operation. The application realizes the alternate maintenance of the two groups of filtering mechanisms through the shunting mechanism and the fixing assemblies, and the continuous operation capacity of the equipment is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of rice processing technology, and in particular to a filtration device for rice processing. Background Technology

[0002] Rice, also known as paddy rice, is a food made from paddy rice through processes such as cleaning, hulling, milling, and finishing. Rice is a staple food for people in most parts of China. Rice processing requires the use of filtration devices to remove impurities and sieve out qualified, plump rice grains.

[0003] Currently, rice processing filtration devices require regular replacement or cleaning of the filter screen after prolonged use to maintain filtration efficiency. However, this requires stopping the equipment to facilitate maintenance work. This shutdown affects rice filtration and thus processing efficiency. Therefore, a new filtration device for rice processing needs to be designed. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a filtration device for rice processing.

[0005] The technical solution adopted in this invention is as follows: a filtering device for rice processing, comprising a housing, a hopper fixedly connected to the middle of the upper end of the housing, a clearing mechanism, a diversion mechanism, and a filtering mechanism disposed inside the housing, the clearing mechanism being located above the diversion mechanism and used to clear the rice inside the hopper; two sets of filtering mechanisms are disposed on the left and right sides of the diversion mechanism, the diversion mechanism being located directly below the hopper, the diversion mechanism being used to divert the rice falling from the hopper to facilitate the rice entering the left or right filtering mechanism; fixing components are disposed on both the front and rear sides of the housing, the fixing components being used to fix the diversion mechanism to facilitate the diversion operation.

[0006] As a further description of the above technical solution: The diversion mechanism includes a deflector plate, a connecting shaft, and a diversion plate. A diversion plate is provided at the lower end of the hopper. Connecting shafts are fixedly connected to both the front and rear sides of the diversion plate. The connecting shafts pass through the box body and are rotatably connected to the box body. A deflector plate is fixedly connected to the end of the connecting shaft away from the diversion plate.

[0007] As a further description of the above technical solution: The fixing component includes a fixing frame, a first sliding hole, a threaded rod, and a locking nut. The fixing frame is fixedly connected to both the front and rear sides of the housing. The fixing frame has a first sliding hole on its surface. The first sliding hole is arc-shaped. A threaded rod is slidably connected inside the first sliding hole. The threaded rod is fixedly connected to the actuating plate. A locking nut is threaded onto the threaded rod.

[0008] As a further description of the above technical solution: The filtration mechanism includes a filter frame, a filter screen, a mounting bracket, a vibration motor, a first fixing plate, a first spring, and a second fixing plate. The first fixing plate is fixedly connected to the inner wall of the box. The first spring is fixedly connected to the upper end of the first fixing plate. The second fixing plate is fixedly connected to the upper end of the first spring. The filter frame is fixedly connected to the end of the second fixing plate away from the inner wall of the box. The filter screen is fixedly connected to the bottom of the filter frame. The mounting bracket is fixedly connected to the bottom of the filter frame. The vibration motor is fixedly connected to the lower end of the mounting bracket. Discharge ports are opened on both the left and right sides of the box, and the filter frame passes through the discharge ports.

[0009] As a further description of the above technical solution: The box body is fixedly connected to the first material guide trough on both the left and right sides. The first material guide trough corresponds to the discharge port and is set at an angle.

[0010] As a further description of the above technical solution: A material guide frame is fixedly connected inside the housing. The material guide frame is arranged in an inverted V shape and is located between the filtration mechanism and the diversion mechanism.

[0011] As a further description of the above technical solution: The lower end of the box is fixedly connected to both the front and rear sides of the box, and a second guide trough is fixedly connected to the lower end of the box. The second guide trough is inclined.

[0012] As a further description of the above technical solution: The unblocking mechanism includes an unblocking motor, a rotating shaft, a bearing seat, a cam, a connecting block, a guide rod, a moving rod, a second spring, and an unblocking rod. Connecting blocks are fixedly connected to both the front and rear sides of the box. A guide rod is fixedly connected between the connecting blocks and the top of the box. The unblocking rod is fixedly connected to the upper end of the guide rod and is located inside the hopper. A second spring is installed on the guide rod, with one end fixedly connected to the top of the box and the other end fixedly connected to the moving rod. A bearing seat is fixedly connected to the top of the box, and a rotating shaft is rotatably connected inside the bearing seat. A cam is fixedly connected to the end of the rotating shaft near the moving rod, and the cam cooperates with the moving rod. An unblocking motor is fixedly connected to the left end of the box, and the output end of the unblocking motor is fixedly connected to the rotating shaft.

[0013] As a further description of the above technical solution: The lower end of the box is fixedly connected to the front and rear sides with four support legs.

[0014] As a further description of the above technical solution: The box has access ports on both the front and rear sides. The access ports are connected to access doors via hinges, and the access doors are fixedly connected to handles.

[0015] The present invention has the following beneficial effects: 1. By setting up a diversion mechanism and a fixing component, this invention enables the alternating maintenance of two sets of filtration mechanisms. During this process, the equipment does not need to be stopped and can still continuously filter rice through the other set of filtration mechanisms. This effectively avoids the production interruption problem caused by the maintenance of a single set of filtration mechanisms in traditional equipment and greatly improves the overall efficiency of rice processing.

[0016] 2. This invention comprises a cleaning motor, a rotating shaft, a bearing seat, a cam, a connecting block, a guide rod, a moving rod, a second spring, and a cleaning rod. In use, turning on the cleaning motor, in conjunction with the rotating shaft, drives the cam to rotate. As the cam rotates, it causes the moving rod to slide on the guide rod, simultaneously compressing the second spring. The elastic restoring action of the second spring allows the moving rod to reciprocate stably up and down on the guide rod, thereby causing the cleaning rod inside the hopper to move up and down synchronously. The cleaning rod continuously agitates and loosens the accumulated rice inside the hopper, effectively preventing rice from clogging the hopper outlet, ensuring smooth rice flow, guaranteeing the continuity and stability of the entire filtration process, and avoiding processing interruptions due to blockages. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention from a first-view perspective; Figure 2 This is a schematic diagram of the overall structure of the invention from a second perspective; Figure 3 For the present invention Figure 2 Enlarged view of section A in the middle; Figure 4 This is a schematic diagram of the internal structure of the present invention from the right-side cross-section. Figure 5 For the present invention Figure 4 Enlarged view of section B; Figure 6 This is a schematic diagram of the internal structure of the present invention after a frontal cross-section. Figure 7 For the present invention Figure 6 Enlarged view of section C; Figure 8 For the present invention Figure 6 Enlarged view of section D in the middle.

[0018] Legend: 1. Housing; 2. Filtering mechanism; 201. Filter frame; 202. Filter screen; 203. Mounting bracket; 204. Vibration motor; 205. First fixing plate; 206. First spring; 207. Second fixing plate; 3. Discharge port; 4. First guide chute; 5. Hopper; 6. Unblocking mechanism; 601. Unblocking motor; 602. Rotating shaft; 603. Bearing seat; 604. Cam; 605. Connecting block; 606. 607. Guide rod; 608. Moving rod; 609. Second spring; 600. Unblocking rod; 7. Diverting mechanism; 701. Actuating plate; 702. Connecting shaft; 703. Diverting plate; 8. Fixing assembly; 801. Fixing frame; 802. First sliding hole; 803. Threaded rod; 804. Locking nut; 9. Inspection door; 10. Handle; 11. Second guide chute; 12. Support leg; 13. Guide frame; 14. Guide plate. Detailed Implementation

[0019] Reference Figure 1-8 The present invention provides a rice processing filtration device, comprising a housing 1, a hopper 5 fixedly connected to the middle of the upper end of the housing 1, and a dredging mechanism 6, a diversion mechanism 7, and a filtration mechanism 2 disposed inside the housing 1. The dredging mechanism 6 is located above the diversion mechanism 7 and is used to dredge the rice inside the hopper 5. Two sets of filtration mechanisms 2 are disposed on the left and right sides of the diversion mechanism 7, which is located directly below the hopper 5. The diversion mechanism 7 is used to divert the rice falling from the hopper 5 so that the rice can enter the left or right filtration mechanism 2. Fixing components 8 are provided on both the front and rear sides of the housing 1 to fix the diversion mechanism 7 so that the diversion mechanism 7 can maintain the diversion operation.

[0020] In use, the rice to be filtered is poured into the hopper 5, and then the rice flows into the housing 1 along the hopper 5. At this time, the unblocking mechanism 6 starts to work, which unblocks the rice in the hopper 5 and prevents the rice from clogging the outlet of the hopper 5. The rice that enters the housing 1 falls into the filtering mechanism 2, where it is filtered. When it is necessary to inspect or clean the filtering mechanism 2 on the right side, the fixing component 8 first releases the fixing of the diversion mechanism 7, then adjusts the tilt of the diversion mechanism 7. After the tilt of the diversion mechanism 7 is adjusted, the fixing component 8 is used again to adjust the diversion mechanism 7. When the diversion mechanism 7 is fixed, it can stably maintain its tilted state. The tilted diversion mechanism 7 then guides the falling rice, ensuring that all the rice falls onto the left-side filter mechanism 2. The left-side filter mechanism 2 can then continue filtering the rice, making it easier to maintain the right-side filter mechanism 2. Similarly, when maintenance is needed on the left-side filter mechanism 2, the diversion mechanism 7 is adjusted to tilt to the right, and all the rice enters the right-side filter mechanism 2, making it easier to maintain the left-side filter mechanism 2. This achieves alternating maintenance of the two filter mechanisms without stopping the machine, ensuring continuous rice processing.

[0021] The diversion mechanism 7 includes a deflector plate 701, a connecting shaft 702, and a diversion plate 703. The diversion plate 703 is provided at the lower end of the hopper 5. The connecting shaft 702 is fixedly connected to both the front and rear sides of the diversion plate 703. The connecting shaft 702 passes through the box body 1 and is rotatably connected to the box body 1. The deflector plate 701 is fixedly connected to the end of the connecting shaft 702 away from the diversion plate 703. The fixing component 8 includes a fixing frame 801, a first sliding hole 802, a threaded rod 803, and a locking nut 804. The fixing frame 801 is fixedly connected to both the front and rear sides of the housing 1. The fixing frame 801 has a first sliding hole 802 on its surface. The first sliding hole 802 is arc-shaped. The threaded rod 803 is slidably connected inside the first sliding hole 802. The threaded rod 803 is fixedly connected to the actuating plate 701. The locking nut 804 is threadedly connected to the threaded rod 803. During operation, when it is necessary to adjust the tilt of the diverter plate 703, the locking nut 804 is first loosened so that the threaded rod 803 can slide freely in the first sliding hole 802 of the fixing frame 801. Then, by actuating the actuating plate 701, the connecting shaft 702 is driven to rotate. The connecting shaft 702 then drives the diverter plate 703 to rotate synchronously, thereby changing the tilt angle of the diverter plate 703. After the diverter plate 703 is adjusted to the desired tilt position, tighten the locking nut 804 again to make the actuating plate 701 tightly contact the fixing frame 801, thereby fixing the position of the actuating plate 701 and ensuring that the diverter plate 703 can stably maintain its current tilt state, thus controlling the flow direction of rice. The first sliding hole 802 is designed in an arc shape, and its curvature matches the rotation trajectory of the connecting shaft 702, providing guidance for the sliding of the threaded rod 803 and ensuring the smoothness and accuracy of the tilt angle adjustment of the diverter plate 703.

[0022] The filtration mechanism 2 includes a filter frame 201, a filter screen 202, a mounting bracket 203, a vibration motor 204, a first fixing plate 205, a first spring 206, and a second fixing plate 207. The first fixing plate 205 is fixedly connected to the inner wall of the housing 1. The first spring 206 is fixedly connected to the upper end of the first fixing plate 205. The second fixing plate 207 is fixedly connected to the upper end of the first spring 206. The filter frame 201 is fixedly connected to the end of the second fixing plate 207 away from the inner wall of the housing 1. The filter screen 202 is fixedly connected to the bottom of the filter frame 201. The mounting bracket 203 is fixedly connected to the bottom of the filter frame 201. The vibration motor 204 is fixedly connected to the lower end of the mounting bracket 203. The housing 1 has discharge ports 3 on both the left and right sides. The filter frame 201 passes through the discharge ports 3. When working, the vibration motor 204 starts and generates high-frequency vibration, which is transmitted to the filter frame 201 through the mounting bracket 203, causing the filter frame 201 to reciprocate in the vertical direction under the elastic support of the first spring 206. At this time, the rice falling onto the filter screen 202 vibrates along with the filter frame 201. During the vibration, relative motion occurs between the rice grains. Smaller impurities, such as broken rice, sand, and bran, pass through the mesh of the filter screen 202 due to gravity and vibration and fall downwards. Meanwhile, plump, appropriately sized rice grains are trapped by the filter screen 202 and, under the tilting action of the filter frame 201, slide along the surface of the filter screen 202 towards the discharge port 3, finally being discharged from the discharge port 3, thus achieving the filtration of the rice.

[0023] The left and right sides of the box 1 are fixedly connected with the first guide trough 4. The first guide trough 4 corresponds to the discharge port 3 and is set at an inclination. During operation, by setting the first guide trough 4, the filtered rice discharged from the discharge port 3 can be collected in a concentrated manner, reducing the spillage of rice outside the box 1.

[0024] Inside the housing 1, a guide frame 13 is fixedly connected. The guide frame 13 is arranged in an inverted V shape and is located between the filter mechanism 2 and the diversion mechanism 7. During operation, by setting the guide frame 13, the falling rice can be guided so that the rice can enter the filter mechanism 2 on both sides respectively.

[0025] Guide plates 14 are fixedly connected to both the front and rear sides of the lower end of the housing 1. A second guide trough 11 is fixedly connected to the lower end of the housing 1. The second guide trough 11 is inclined. During operation, the guide plates 14 can guide the filtered impurities, allowing them to slide smoothly into the second guide trough 11. The second guide trough 11 is also inclined, with its outlet end slightly lower than its inlet end, so that the impurities entering the second guide trough 11 can be discharged from the housing 1 by gravity, making it convenient for operators to clean and process the impurities.

[0026] The unblocking mechanism 6 includes an unblocking motor 601, a rotating shaft 602, a bearing seat 603, a cam 604, a connecting block 605, a guide rod 606, a moving rod 607, a second spring 608, and an unblocking rod 609. Connecting blocks 605 are fixedly connected to both the front and rear sides of the inside of the housing 1. A guide rod 606 is fixedly connected between the connecting block 605 and the top of the housing 1. The unblocking rod 609 is fixedly connected to the upper end of the guide rod 606 and is located inside the hopper 5. A second spring 608 is installed on the guide rod 606. One end of the second spring 608 is fixedly connected to the top of the housing 1, and the other end is fixedly connected to the moving rod 607. A bearing seat 603 is fixedly connected to the top of the inside of the housing 1, and the bearing seat 603 is rotatably connected inside. A rotating shaft 602 is provided, with a cam 604 fixedly connected to one end of the rotating shaft 602 near the moving rod 607. The cam 604 cooperates with the moving rod 607. A cleaning motor 601 is fixedly connected to the left end of the housing 1, and the output end of the cleaning motor 601 is fixedly connected to the rotating shaft 602. During operation, the cleaning motor 601 is turned on, which, with the cooperation of the rotating shaft 602, drives the cam 604 to rotate. As the cam 604 rotates, it drives the moving rod 607 to slide on the guide rod 606, simultaneously compressing the second spring 608. Under the elastic restoring action of the second spring 608, the moving rod 607 can stably move up and down on the guide rod 606, thereby causing the cleaning rod 609 located inside the hopper 5 to move up and down synchronously. The cleaning rod 609 continuously agitates and loosens the accumulated rice inside the hopper 5, effectively preventing rice from clogging the outlet of the hopper 5, ensuring that the rice can fall smoothly, guaranteeing the continuity and stability of the entire filtration process, and avoiding processing interruptions caused by blockage.

[0027] Support legs 12 are fixedly connected to the front and rear sides of the lower end of the box 1, and there are four support legs 12. During operation, the support legs 12 support the box 1, keeping the lower end of the box 1 away from the ground, preventing ground moisture from corroding the bottom of the box 1, and also providing sufficient space for the installation of the second guide chute 11.

[0028] The front and rear sides of the housing 1 are provided with inspection ports. The inspection ports are connected to the inspection doors 9 by hinges. The inspection doors 9 are fixedly connected to the handles 10. When maintenance is required, the handles 10 can be pulled to open the inspection doors 9 and the filter mechanism 2 inside the housing 1 can be maintained or replaced through the inspection ports.

[0029] Working principle: The rice to be filtered is poured into the hopper 5, and then flows into the housing 1 along the hopper 5. At this time, the unblocking mechanism 6 starts working. The unblocking motor 601 starts and drives the rotating shaft 602 to rotate in the bearing seat 603. The cam 604 on the rotating shaft 602 rotates accordingly. When the protruding part of the cam 604 contacts the moving rod 607, it pushes the moving rod 607 to slide along the guide rod 606 and compresses the second spring 608. When the protruding part of the cam 604 moves away from the moving rod 607, the elastic potential energy of the second spring 608 is released, driving the moving rod 607 to reset. This cycle continues, causing the moving rod 607 to drive the unblocking rod 609 to move up and down in the hopper 5. At this time, the unblocking rod 609 continuously agitates the rice in the hopper 5, effectively preventing the rice from clogging the outlet of the hopper 5 due to accumulation, and ensuring that the rice can flow down evenly and smoothly to the diversion mechanism 7. The diversion plate 703 of the diversion mechanism 7 remains vertical in its initial state. Rice falling from the hopper 5 is diverted left and right by the diversion plate 703, and then falls along the guide frame 13 into the filter mechanisms 2 on the left and right sides respectively. After the rice enters the filter frame 201, the vibration motor 204 works to drive the filter frame 201 and the internal filter screen 202 to vibrate through the mounting frame 203. Under the elastic support of the first spring 206, the filter frame 201 generates high-frequency vibration, causing impurities in the rice to fall through the mesh of the filter screen 202, while qualified rice grains are trapped on the filter screen 202. The filtered rice slides out from the discharge port 3 on both sides of the box 1 along the inclined filter frame 201, and is guided to the outside by the first guide chute 4 for convenient centralized collection; while the falling impurities fall onto the guide plate 14, and are finally discharged from the box 1 through the inclined second guide chute 11, realizing the centralized collection of impurities.

[0030] When it is necessary to clean or replace the filter screen 202 of the right-side filter mechanism 2, first loosen the locking nut 804 on the threaded rod 803 in the fixing assembly 8 to release the fixation of the actuating plate 701. Then, move the actuating plate 701 to the left to rotate the connecting shaft 702, which in turn rotates the diverter plate 703, causing the lower end of the diverter plate 703 to tilt to the left and the upper end to tilt to the right. After the tilt angle of the diverter plate 703 is adjusted, tighten the locking nut 804 back onto the threaded rod 803. 03. Fix the actuating plate 701 to the fixing frame 801, ensuring that the diverting plate 703 remains tilted. At this time, all the rice falling from the hopper 5 will land on the inclined surface of the diverting plate 703 and slide down the inclined surface into the filter frame 201 of the left filter mechanism 2. Subsequently, the right filter mechanism 2 stops working. Maintenance personnel can open the maintenance door 9 by pulling the handle 10 on the right maintenance door 9 to replace or clean the filter screen 202 in the right filter frame 201. During this process, the left filter mechanism 2 continues to operate normally, ensuring the continuity of rice filtration. After maintenance is completed, close the maintenance door 9. Similarly, when maintenance of the left filter mechanism 2 is required, simply move the actuating plate 701 to the right to allow all the rice to enter the right filter mechanism 2 for filtration, facilitating maintenance of the left filter mechanism 2.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A filtering device for rice processing, comprising a housing (1), characterized in that: The upper middle position of the box (1) is fixedly connected to the hopper (5). The box (1) is equipped with a dredging mechanism (6), a diversion mechanism (7) and a filtering mechanism (2). The dredging mechanism (6) is located at the upper end of the diversion mechanism (7) and is used to dredge the rice inside the hopper (5). The filtering mechanism (2) is provided in two sets and is located on the left and right sides of the diversion mechanism (7). The diversion mechanism (7) is located directly below the hopper (5) and is used to divert the rice falling from the hopper (5) so that the rice can enter the left or right filtering mechanism (2). The box (1) is equipped with fixing components (8) on both the front and rear sides. The fixing components (8) are used to fix the diversion mechanism (7) so that the diversion mechanism (7) can maintain the diversion operation.

2. The rice processing filtration device according to claim 1, characterized in that: The diversion mechanism (7) includes a deflector plate (701), a connecting shaft (702) and a diversion plate (703). The diversion plate (703) is provided at the lower end of the hopper (5). The connecting shaft (702) is fixedly connected to both the front and rear sides of the diversion plate (703). The connecting shaft (702) passes through the box body (1) and is rotatably connected to the box body (1). The deflector plate (701) is fixedly connected to the end of the connecting shaft (702) away from the diversion plate (703).

3. The rice processing filtration device according to claim 2, characterized in that: The fixing component (8) includes a fixing frame (801), a first sliding hole (802), a threaded rod (803), and a locking nut (804). The fixing frame (801) is fixedly connected to both the front and rear sides of the housing (1). The fixing frame (801) has a first sliding hole (802) on its surface. The first sliding hole (802) is arc-shaped. The threaded rod (803) is slidably connected inside the first sliding hole (802). The threaded rod (803) is fixedly connected to the actuating plate (701). The locking nut (804) is threaded onto the threaded rod (803).

4. The filtering device for rice processing according to claim 1, characterized in that: The filtration mechanism (2) includes a filter frame (201), a filter screen (202), a mounting bracket (203), a vibration motor (204), a first fixing plate (205), a first spring (206), and a second fixing plate (207). The first fixing plate (205) is fixedly connected to the inner wall of the box (1). The first spring (206) is fixedly connected to the upper end of the first fixing plate (205). The second fixing plate (207) is fixedly connected to the upper end of the first spring (206). The filter frame (201) is fixedly connected to the end of the second fixing plate (207) away from the inner wall of the box (1). The filter screen (202) is fixedly connected to the bottom of the filter frame (201). The mounting bracket (203) is fixedly connected to the bottom of the filter frame (201). The vibration motor (204) is fixedly connected to the lower end of the mounting bracket (203). The box (1) has discharge ports (3) on both the left and right sides. The filter frame (201) passes through the discharge ports (3).

5. A filtering device for rice processing according to claim 4, characterized in that: The box body (1) is fixedly connected to the left and right sides with the first guide groove (4), which corresponds to the discharge port (3) and is set at an inclination.

6. A filtering device for rice processing according to claim 1, characterized in that: The housing (1) is fixedly connected to a guide frame (13), which is arranged in an inverted V shape and is located between the filter mechanism (2) and the diversion mechanism (7).

7. A filtering device for rice processing according to claim 1, characterized in that: The lower end of the box (1) is fixedly connected to both the front and rear sides of the box body (1), and the lower end of the box body (1) is fixedly connected to a second guide groove (11), which is inclined.

8. A filtering device for rice processing according to claim 1, characterized in that: The unblocking mechanism (6) includes an unblocking motor (601), a rotating shaft (602), a bearing seat (603), a cam (604), a connecting block (605), a guide rod (606), a moving rod (607), a second spring (608), and an unblocking rod (609). The connecting blocks (605) are fixedly connected to both the front and rear sides of the inside of the housing (1). The guide rod (606) is fixedly connected between the connecting block (605) and the top of the housing (1). The unblocking rod (609) is fixedly connected to the upper end of the guide rod (606). The unblocking rod (609) is located inside the hopper (5). The second spring is provided on the guide rod (606). (608), one end of the second spring (608) is fixedly connected to the top of the box (1), and the other end of the second spring (608) is fixedly connected to the moving rod (607); a bearing seat (603) is fixedly connected to the top of the inside of the box (1), and a rotating shaft (602) is rotatably connected inside the bearing seat (603). A cam (604) is fixedly connected to one end of the rotating shaft (602) near the moving rod (607), and the cam (604) cooperates with the moving rod (607); a dredging motor (601) is fixedly connected to the left end of the box (1), and the output end of the dredging motor (601) is fixedly connected to the rotating shaft (602).

9. A filtering device for rice processing according to claim 1, characterized in that: The lower end of the box (1) is fixedly connected to the front and rear sides with support legs (12), and there are four support legs (12).

10. A filtering device for rice processing according to claim 1, characterized in that: The box (1) has inspection ports on both the front and rear sides. The inspection ports are connected to an inspection door (9) by a hinge. The inspection door (9) is fixedly connected to a handle (10).

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