A raw grain cleaning device

Abstract

This utility model relates to the field of flour processing technology, specifically to a raw grain cleaning device. It includes a main body with a feed hopper and a discharge outlet. A first filter plate is installed inside the main body. A waste bin is fixedly connected to the side of the main body near the discharge outlet. The feed hopper is rotatably connected to a dispersing component near the first filter plate. A driving mechanism rotates the dispersing component, breaking up agglomerates into individual particles. Simultaneously, a vibration mechanism drives the first filter plate to move up and down reciprocally, causing it to vibrate during raw material filtration. This prevents slow sieving caused by static particles and solves the technical problem of impurities easily becoming trapped inside the particle layer and unable to be exposed to the screen surface, resulting in some raw grain moving with the accumulation layer without being fully sieved, thus reducing the impurity separation efficiency of the raw grain cleaning device.

Description

Technical Field

[0001] This utility model relates to the field of flour processing technology, specifically to a raw grain cleaning device. Background Technology

[0002] The main raw material for flour is wheat, but there are other types of flour made from different grains. In the flour production process, the removal of impurities is very important. These impurities not only affect the quality of the flour, but may also affect the taste and safety of the final food. The raw grain cleaning device is mainly used to remove impurities from the flour raw materials to ensure that the raw materials entering the flour production line are pure and meet quality standards.

[0003] Chinese Patent Publication No. CN211303783U discloses a fine grain cleaning device for flour processing, comprising a shell, a fixed block fixedly connected to the left side of the bottom of the inner wall of the shell, a rotating plate movably connected to the front of the fixed block, a transmission rod fixedly connected to the right side of the front of the rotating plate, a motor fixedly connected to the back of the inner wall of the shell, a disc fixedly connected to the output end of the motor, a connecting plate movably connected to the top of the front of the disc, and the top of the back of the connecting plate movably connected to the front of the rotating plate. Sliding rods are laterally fixedly connected to the front and rear sides of the interior of the shell, and sliding rings are slidably connected to the surfaces of the sliding rods. A movable frame cooperating with the transmission rod is fixedly connected to the right side of the bottom of the sliding ring. This invention solves the problem of low working efficiency in existing grain cleaning devices. This fine grain cleaning device for flour processing has the advantage of high working efficiency, saving users a lot of time and shortening the flour processing cycle.

[0004] The aforementioned patent mentions that the raw grain cleaning device mainly separates and cleans the raw grain by driving the screen to move, thereby improving the efficiency of raw grain separation and cleaning. Although the device improves the efficiency of raw grain separation and cleaning by driving the screen to move back and forth with the cleaning box, the raw grain, as a granular material, is prone to localized accumulation due to differences in fluidity when falling from the hopper under the action of gravity. Especially when the feeding speed is fast or the moisture content of the raw grain is slightly high, adsorption and agglomeration are easily generated between the particles, and impurities are easily wrapped inside the particle layer and cannot be exposed to the screen surface. As a result, some raw grain moves with the accumulation layer without being fully screened, which reduces the efficiency of impurity separation. Therefore, we propose a raw grain cleaning device. Utility Model Content

[0005] To address the aforementioned issues, a raw grain cleaning device is provided. A driving mechanism rotates a dispersing component, breaking up agglomerates into individual particles. Simultaneously, a vibration mechanism drives a first filter plate to move up and down reciprocally, causing the filter plate to vibrate during raw material filtration. This prevents slow sieving caused by static particles and solves the technical problem of impurities easily becoming trapped inside the particle layer and unable to be exposed to the screen surface, resulting in some raw grain moving with the accumulation layer without being fully sieved, thus reducing the impurity separation efficiency of the raw grain cleaning device.

[0006] To address the problems of existing technologies, this utility model provides a grain cleaning device, comprising a main body with a feed hopper and a discharge outlet. A first filter plate is disposed within the main body. A waste bin is fixedly connected to the side of the main body near the discharge outlet. The feed hopper is rotatably connected to a dispersing component near the first filter plate. A first connecting pad and a second connecting pad are sequentially fixedly connected to the outer side of the first filter plate, and both are fixedly connected to the main body. A driving mechanism for rotating the dispersing component is provided between the main body and the dispersing component. A vibration mechanism for reciprocating the first filter plate is provided between the first filter plate and the driving mechanism. A flow guiding mechanism for driving airflow within the main body to remove impurities is provided between the main body and the waste bin.

[0007] Preferably, the drive mechanism includes a first power component and a transmission assembly; the first power component is fixedly connected to the main body of the device, and the first power component is used to provide power for the rotation of the dispersing component and the reciprocating movement of the first filter plate; the transmission assembly is disposed between the first power component and the dispersing component, and the transmission assembly is used to transmit the power of the first power component to the dispersing component.

[0008] Preferably, the transmission assembly includes a gear ring, a gear disc, and a synchronization assembly; the gear ring is rotatably mounted on the main body of the device and is fixedly connected to the dispersion component; the gear disc is rotatably mounted on the main body of the device and meshes with the gear ring; the synchronization assembly is rotatably mounted on the main body of the device, the working end of the synchronization assembly is fixedly connected to the gear disc, and the working end of the synchronization assembly on one side of the gear ring away from the gear disc is fixedly connected to the output end of the first power component.

[0009] Preferably, the vibration mechanism includes a connecting rod, a dust cover, a first toothed plate, and a second toothed plate; the connecting rod is fixedly connected to the working end of the synchronization component away from the toothed disc, one end of the connecting rod passes through the first connecting pad, and the connecting rod is rotatably connected to the first connecting pad; the first toothed plate is fixedly connected to the lower end of the connecting rod; the second toothed plate is mated with the first toothed plate, and the second toothed plate is fixedly connected to the first filter plate.

[0010] Preferably, the vibration mechanism further includes a guide assembly for assisting the first filter plate in vertical displacement. The guide assembly includes a slider, a groove, and an elastic reset member. The slider is fixedly connected to the second toothed plate. The groove is opened on the side of the device body near the slider, and the groove slides in cooperation with the slider. The elastic reset member is disposed in the groove, and its two ends are fixedly connected to the groove and the slider, respectively.

[0011] Preferably, the flow guiding mechanism includes a material guiding component and a flow guiding component; the material guiding component is disposed between the impurity outlet and the impurity box, and is used to guide the movement direction of impurities in the raw material; the flow guiding component is disposed on the impurity box, and is used to drive the air in the main body of the device to flow.

[0012] Preferably, the material guiding assembly includes a connecting cover, a magnetic ring, and a magnetic suction component; one side of the connecting cover is fixedly connected to the waste outlet; the magnetic ring is fixedly connected to the side of the connecting cover away from the waste outlet; and the magnetic suction component is fixedly installed on the side of the waste bin near the magnetic ring.

[0013] Preferably, the flow diversion assembly includes a second power component and a second filter plate; the second power component is fixedly connected to the main body of the device, and the air inlet of the second power component is fixedly connected to the miscellaneous material box; the second filter plate is fixedly connected to the side of the miscellaneous material box near the air inlet of the second power component.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. The dispersing component is rotated by the driving mechanism, which breaks up the agglomerates into individual particles. At the same time, the first filter plate is driven to move up and down by the vibration mechanism, which makes the first filter plate vibrate when filtering the raw material. This avoids slow screening caused by the particles being stationary. It solves the technical problem that impurities are easily wrapped inside the particle layer and cannot be exposed to the screen surface, which causes some raw grains to move with the accumulation layer without being fully screened, thus reducing the impurity separation efficiency of the raw grain cleaning device.

[0016] 2. The air inside the main body of the device is directed to flow through the guiding mechanism. The traction force generated by the air flow can only overcome light impurities. When light impurities adhere to the surface of the raw grain, the continuous impact generated by the airflow can also blow the adhered light impurities away from the surface of the raw grain and then carry them into the impurity box. This solves the technical problem that the raw grain cleaning device has poor separation effect on light and easily adhered impurities, and that the light impurities adhere more tightly and the removal difficulty increases due to the moisture content of the raw grain. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the main body of a grain cleaning device, the feed hopper, and its connecting structure.

[0018] Figure 2This is a three-dimensional schematic diagram of the dispersion component and the first connecting pad of a grain cleaning device and their connection structure.

[0019] Figure 3 This is a three-dimensional schematic diagram of the toothed ring and toothed disc and their connection structure of a grain cleaning device.

[0020] Figure 4 A raw grain cleaning device Figure 2 Enlarged diagram of point A in the middle.

[0021] Figure 5 A raw grain cleaning device Figure 2 Enlarged diagram of point B in the middle.

[0022] Figure 6 A raw grain cleaning device Figure 2 Enlarged diagram of point C in the middle.

[0023] The following are the labels in the diagram: 1. Main body of the device; 11. Feed hopper; 12. Waste outlet; 13. First filter plate; 14. Waste bin; 2. Dispersing component; 21. First connecting pad; 22. Second connecting pad; 23. First power component; 24. Gear ring; 25. Gear disc; 26. Synchronization component; 27. Connecting rod; 28. First toothed plate; 29. ​​Second toothed plate; 210. Slider; 211. Slide groove; 212. Elastic reset component; 213. Connecting cover; 214. Magnetic ring; 215. Magnetic suction component; 216. Second power component; 217. Second filter plate. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] See Figure 1 and Figure 2 As shown, a grain cleaning device includes a main body 1, on which a feed hopper 11 and a waste outlet 12 are respectively provided. A first filter plate 13 is provided inside the main body 1. A waste bin 14 is fixedly connected to the side of the main body 1 near the waste outlet 12. The side of the feed hopper 11 near the first filter plate 13 is rotatably connected to a dispersing component 2. A first connecting pad 21 and a second connecting pad 22 are fixedly connected to the outer side of the first filter plate 13 in sequence. The first connecting pad 21 and the second connecting pad 22 are fixedly connected to the main body 1. A driving mechanism for driving the dispersing component 2 to rotate is provided between the main body 1 and the dispersing component 2. A vibration mechanism for driving the first filter plate 13 to move up and down reciprocally is provided between the first filter plate 13 and the driving mechanism. A flow guiding mechanism for driving airflow inside the main body 1 to remove impurities is provided between the main body 1 and the waste bin 14.

[0026] Specifically, the first connecting pad 21 and the second connecting pad 22 are preferably made of deformable rubber.

[0027] When the raw grain cleaning device is put into use, the raw grain is fed into the main body 1 of the device through the feed hopper 11. During the fall of the raw grain, it needs to pass through the dispersing component 2. The drive mechanism is started, and the drive mechanism drives the dispersing component 2 to rotate. The dispersing component 2 breaks down the agglomerates in the raw grain into individual particles through the impact and shearing action of the blades, avoiding large agglomerates from falling directly onto the surface of the first filter plate 13 and forming local accumulation. At the same time, the rotation trajectory and blade angle of the dispersing component 2 can be preset, which can guide the falling raw grain to different areas of the first filter plate 13, avoiding the problem of the raw grain falling into the center or local area of ​​the first filter plate 13 due to gravity. This achieves uniform distribution of the raw grain on the surface of the first filter plate 13, preventing the phenomenon of excessively thick local accumulation of raw grain on the surface of the first filter plate 13 and the absence of material at the edges, thus laying a uniform material foundation for the subsequent vibrating screening process.

[0028] While the dispersing component 2 rotates, the vibration mechanism is activated, driving the first filter plate 13 to move up and down reciprocally, causing the first filter plate 13 to vibrate and screen the raw grain. The vibration of the first filter plate 13 causes the raw grain particles on its surface to jump and tumble: on the one hand, it reduces the probability of raw grain particles clogging the filter holes of the first filter plate 13; on the other hand, it accelerates the passage of raw grain that meets the particle size requirements through the sieve holes, avoiding a decrease in screening efficiency due to the particles remaining stationary. For impurities wrapped inside the raw grain particle layer, the vibration can loosen and reorganize the particle layer, exposing the internal impurities to the surface of the first filter plate 13, preventing impurities from being moved with the accumulated layer without being separated; at the same time, the inertial force generated by the vibration can shake the impurities out from the gaps between the raw grain particles, ensuring that the impurities are fully separated from the raw grain and improving the impurity separation efficiency.

[0029] The raw grain is first evenly dispersed by the dispersing component 2, and the first filter plate 13 can directly vibrate and screen the evenly distributed raw grain, greatly shortening the single screening cycle. Especially in batch feeding scenarios, it can increase the raw grain processing capacity per unit time, avoid the problem of raw grain moving with the accumulation layer without being fully screened, and ensure the stability of impurity separation efficiency.

[0030] Furthermore, when the raw grain is screened by the first filter plate 13, the guiding mechanism is activated, which drives the airflow inside the main body 1 of the device to flow in a specific direction. The traction force generated by the airflow can only overcome the gravity of light impurities, such as dust and lint, causing them to move directionally with the airflow to the waste bin 14; while the raw grain, due to its larger mass, is less affected by the airflow and still falls along the preset trajectory to the subsequent processing stage. This can significantly improve the separation effect of light impurities such as dust and lint mixed in the raw grain, and improve the purity of the raw grain; at the same time, it reduces the total amount of light impurities entering the subsequent screening system, avoiding the blockage of the screen holes by light impurities. Even if light impurities adhere to the surface of the raw grain, the continuous impact generated by the airflow can blow the adhered light impurities away from the surface of the raw grain and then carry them into the waste bin 14, effectively avoiding the problem of reduced impurity removal effect caused by the moisture content of the raw grain.

[0031] See Figures 2-4 As shown, the drive mechanism includes a first power component 23 and a transmission assembly. The first power component 23 is fixedly connected to the main body 1 of the device and provides power for the rotation of the dispersion component 2 and the reciprocating movement of the first filter plate 13. The transmission assembly is disposed between the first power component 23 and the dispersion component 2 and is used to transmit the power of the first power component 23 to the dispersion component 2. The transmission assembly includes a gear ring 24, a gear disk 25, and a synchronization assembly 26. The gear ring 24 is rotatably disposed on the main body 1 of the device and is fixedly connected to the dispersion component 2. The gear disk 25 is rotatably disposed on the main body 1 of the device and meshes with the gear ring 24. The synchronization assembly 26 is rotatably disposed on the main body 1 of the device. The working end of the synchronization assembly 26 is fixedly connected to the gear disk 25, and the working end of the synchronization assembly 26 on one side of the gear ring 24 away from the gear disk 25 is fixedly connected to the output end of the first power component 23.

[0032] Specifically, the first power component 23 is preferably a servo motor. The synchronization assembly 26 consists of a timing belt and a timing pulley that mesh with each other.

[0033] When the raw grain passes the dispersing component 2 during its fall, the first power component 23 is activated. The output end of the first power component 23 drives the working end of the synchronization component 26 to rotate. Since the synchronization component 26 is composed of a meshing synchronous belt and a synchronous pulley, the first power component 23 can transmit power to the gear plate 25 through the synchronization component 26, causing the gear plate 25 to rotate.

[0034] The toothed disc 25 and the toothed ring 24 are engaged and connected. When the toothed disc 25 rotates, it drives the toothed ring 24 to rotate synchronously. The toothed ring 24 and the dispersing component 2 are fixedly connected, so the rotation of the toothed ring 24 can drive the dispersing component 2 to rotate synchronously. During the rotation of the blades of the dispersing component 2, it forms a patting effect on the falling grain, which ultimately breaks up the agglomerates in the grain into individual particles.

[0035] See Figure 2 , Figure 4 and Figure 5 As shown, the vibration mechanism includes a connecting rod 27, a dust cover, a first toothed plate 28, and a second toothed plate 29. The connecting rod 27 is fixedly connected to the working end of the synchronization component 26 away from the toothed disc 25. One end of the connecting rod 27 passes through the first connecting pad 21, and the connecting rod 27 is rotatably connected to the first connecting pad 21. The first toothed plate 28 is fixedly connected to the lower end of the connecting rod 27. The second toothed plate 29 is mated with the first toothed plate 28 and fixedly connected to the first filter plate 13. The vibration mechanism also includes a guide component, which is used to assist the first filter plate 13 in vertical displacement. The guide component includes a slider 210, a groove 211, and an elastic reset member 212. The slider 210 is fixedly connected to the second toothed plate 29. The groove 211 is opened on the side of the device body 1 near the slider 210, and the groove 211 slides with the slider 210. The elastic reset member 212 is disposed in the groove 211, and both ends of the elastic reset member 212 are fixedly connected to the groove 211 and the slider 210, respectively.

[0036] Specifically, the slider 210 and the groove 211 form a sliding guide pair. The elastic reset member 212 is preferably a spring.

[0037] As the dispersing component 2 rotates, the working end of the synchronizing component 26 synchronously drives the connecting rod 27 to rotate. The rotation of the connecting rod 27 drives the first toothed plate 28 to rotate around the axis of the connecting rod 27. As the first toothed plate 28 rotates, its inclined surface presses against the inclined surface of the second toothed plate 29, generating a downward force that pushes the second toothed plate 29 downward in the vertical direction.

[0038] The first connecting pad 21 and the second connecting pad 22 are preferably made of deformable rubber, which can adapt to the downward movement of the second toothed plate 29, avoiding damage to the components caused by rigid deformation. When the second toothed plate 29 moves downward, it simultaneously drives the slider 210 to slide along the slide groove 211; the slider 210 and the slide groove 211 form a sliding guide pair, which restricts the movement trajectory of the first filter plate 13, ensuring that the first filter plate 13 remains in a straight line during the downward movement. At the same time, when the slider 210 slides along the slide groove 211, it compresses the elastic reset member 212, putting the elastic reset member 212 into a compressed energy storage state.

[0039] When the inclined surface of the first toothed plate 28 disengages from the inclined surface of the second toothed plate 29 and the compression stops, the elastic reset member 212 releases its stored energy and extends, generating an upward thrust that pushes the slider 210 upward along the slide groove 211. During the upward movement of the slider 210, the first filter plate 13 is moved upward synchronously through the second toothed plate 29. As the first toothed plate 28 continues to rotate, its inclined surface repeatedly compresses and disengages from the inclined surface of the second toothed plate 29, causing the first filter plate 13 to continuously vibrate up and down.

[0040] The continuous vibration can loosen and reorganize the grain particle layer on the surface of the first filter plate 13, exposing the impurities wrapped inside the particle layer to the surface of the first filter plate 13, effectively preventing impurities from being separated as they move with the grain accumulation layer, and ensuring the impurity separation effect.

[0041] See Figure 1 , Figure 2 and Figure 6 As shown, the flow guiding mechanism includes a material guiding component and a flow guiding component. The material guiding component is disposed between the impurity outlet 12 and the impurity box 14, and is used to guide the movement direction of impurities in the raw material. The flow guiding component is disposed on the impurity box 14, and is used to drive the air in the main body 1 of the device to flow. The material guiding component includes a connecting cover 213, a magnetic ring 214, and a magnetic suction component 215. One side of the connecting cover 213 is fixedly connected to the impurity outlet 12. The magnetic ring 214 is fixedly connected to the side of the connecting cover 213 away from the impurity outlet 12. The magnetic suction component 215 is fixedly installed on the side of the impurity box 14 near the magnetic ring 214. The flow guiding component includes a second power component 216 and a second filter plate 217. The second power component 216 is fixedly connected to the main body 1 of the device, and the air inlet of the second power component 216 is fixedly connected to the impurity box 14. The second filter plate 217 is fixedly connected to the side of the impurity box 14 near the air inlet of the second power component 216.

[0042] Specifically, the connecting cover 213 is preferably a deformable folded corrugated tube. The magnetic ring 214 and the magnetic attractor 215 are magnetically attracted. The second power component 216 is preferably an exhaust fan.

[0043] When the dispersing component 2 rotates to evenly disperse the raw grain, the second power component 216 is activated. The second power component 216 draws air to the outside of the device body 1 through the second filter plate 217, creating a negative pressure environment inside the device body 1, driving the internal air to flow along a preset path. The air flows through the waste outlet 12, through the connecting cover 213, and finally enters the waste bin 14.

[0044] The traction force generated during airflow can only overcome the gravity of light impurities, causing them to move directionally with the airflow to the waste bin 14. At the same time, the second filter plate 217 can intercept light impurities in the airflow, achieving centralized storage of light impurities in the waste bin 14. Even if light impurities adhere to the surface of the raw grain, the continuous impact generated by the airflow can blow the adhered light impurities away from the surface of the raw grain and carry them into the waste bin 14 with the airflow, ensuring effective separation of light impurities.

[0045] When workers need to clean light impurities from the waste bin 14, they de-energize the magnetic chuck 215. After de-energization, the magnetic chuck 215 loses its magnetism, causing the magnetic ring 214 to disengage from the magnetic chuck 215. At this time, workers can pull the connecting cover 213 upwards. Since the connecting cover 213 is preferably a deformable folded corrugated tube structure, it deforms with the pulling force and moves away from the top of the waste bin 14, providing ample operating space for workers to clean the impurities inside the waste bin 14, facilitating a quick cleaning operation.

[0046] Working principle: When the raw grain cleaning device is put into use, the raw grain is fed into the main body 1 of the device through the feed hopper 11. During the fall of the raw grain, it needs to pass through the dispersing component 2. The first power component 23 is activated, which makes the blades of the dispersing component rotate to beat the falling raw grain, and finally breaks the agglomerates in the raw grain into individual particles. At the same time, the first filter plate 13 continuously vibrates up and down to ensure the separation effect of impurities. Then the second power component 216 is activated to drive the internal air to flow along the preset path. The air flows through the impurity outlet 12, through the connecting cover 213, and finally enters the impurity box 14. The continuous impact generated by the airflow can also blow the adhering light impurities away from the surface of the raw grain and carry them into the impurity box 14 with the airflow, ensuring the effective separation of light impurities.

[0047] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A grain cleaning device, comprising a main body (1), wherein a feed hopper (11) and a waste outlet (12) are respectively provided on the main body (1), a first filter plate (13) is provided inside the main body (1), and a waste bin (14) is fixedly connected to the side of the main body (1) near the waste outlet (12), characterized in that, The side of the feed hopper (11) near the first filter plate (13) can be rotatably connected to the dispersing element (2); The outer side of the first filter plate (13) is fixedly connected with a first connecting pad (21) and a second connecting pad (22), and the first connecting pad (21) and the second connecting pad (22) are fixedly connected to the main body (1) of the device. A drive mechanism for driving the dispersion component (2) to rotate is provided between the main body (1) and the dispersion component (2); A vibration mechanism for driving the first filter plate (13) to move up and down is provided between the first filter plate (13) and the driving mechanism; A flow guide mechanism is provided between the main body (1) of the device and the miscellaneous material box (14) to drive the air flow inside the main body (1) to remove impurities.

2. The grain cleaning device according to claim 1, characterized in that, The drive mechanism includes a first power component (23) and a transmission assembly; The first power component (23) is fixedly connected to the main body (1) of the device. The first power component (23) is used to provide power for the rotation of the dispersion component (2) and the reciprocating movement of the first filter plate (13). The transmission assembly is disposed between the first power member (23) and the dispersion member (2), and the transmission assembly is used to transmit the power of the first power member (23) to the dispersion member (2).

3. The grain cleaning device according to claim 2, characterized in that, The transmission assembly includes a gear ring (24), a gear disc (25), and a synchronization assembly (26); The toothed ring (24) is rotatably mounted on the main body (1) of the device, and the toothed ring (24) is fixedly connected to the dispersing component (2); The toothed disc (25) is rotatably mounted on the main body (1) of the device, and the toothed disc (25) meshes with the toothed ring (24); The synchronization component (26) is rotatably mounted on the main body (1) of the device. The working end of the synchronization component (26) is fixedly connected to the gear disk (25), and the working end of the synchronization component (26) on the side of the gear ring (24) away from the gear disk (25) is fixedly connected to the output end of the first power component (23).

4. The grain cleaning device according to claim 2, characterized in that, The vibration mechanism includes a connecting rod (27), a first toothed plate (28), and a second toothed plate (29); The connecting rod (27) is fixedly connected to the working end of the synchronization component (26) away from the gear plate (25). One end of the connecting rod (27) passes through the first connecting pad (21), and the connecting rod (27) can be rotatably connected to the first connecting pad (21). The first toothed plate (28) is fixedly connected to the lower end of the connecting rod (27); The second toothed plate (29) is connected to the first toothed plate (28), and the second toothed plate (29) is fixedly connected to the first filter plate (13).

5. The grain cleaning device according to claim 1, characterized in that, The vibration mechanism also includes a guide assembly, which is used to assist the first filter plate (13) in vertical displacement. The guide assembly includes a slider (210), a groove (211), and an elastic reset member (212). The slider (210) is fixedly connected to the second toothed plate (29); The slide groove (211) is located on the side of the main body (1) of the device close to the slider (210), and the slide groove (211) and the slider (210) slide in cooperation; The elastic reset member (212) is disposed in the slide groove (211), and the two ends of the elastic reset member (212) are fixedly connected to the slide groove (211) and the slider (210) respectively.

6. The grain cleaning device according to claim 1, characterized in that, The flow guiding mechanism includes a material guiding component and a flow diversion component; The material guiding assembly is located between the impurity outlet (12) and the impurity box (14). The material guiding assembly is used to guide the movement direction of impurities in the raw material. The flow-guiding assembly is located on the miscellaneous material box (14) and is used to drive the air flow in the main body of the device (1).

7. The grain cleaning device according to claim 6, characterized in that, The material guiding assembly includes a connecting cover (213), a magnetic ring (214), and a magnetic suction element (215). One side of the connecting cover (213) is fixedly connected to the outlet (12); The magnetic ring (214) is fixedly connected to the side of the connecting cover (213) away from the outlet (12); The magnetic chuck (215) is fixedly installed on the side of the miscellaneous material box (14) near the magnetic ring (214).

8. A grain cleaning device according to claim 6, characterized in that, The drainage assembly includes a second power component (216) and a second filter plate (217); The second power component (216) is fixedly connected to the main body (1) of the device, and the air inlet of the second power component (216) is fixedly connected to the miscellaneous material box (14); The second filter plate (217) is fixedly connected to the side of the miscellaneous material box (14) near the air inlet of the second power component (216).

Images