An integrated automatic inspection system for grain quality

Abstract

The present invention belongs to the technical field of grain detection equipment, and particularly refers to an integrated automatic inspection system for grain quality, comprising a frame, a fine filter device being provided on the frame, the discharge end of the fine filter device being connected to a screening component, the screening end of the screening component being connected to a grain weighing component, the filtering end of the screening component being connected to a recovery container, the discharge end of the grain weighing component being connected to a moisture detector, the discharge end of the moisture detector being connected to a bifurcated component, the bifurcated component having two discharge ends and being respectively connected to a rice hulling component and a detection hopper, the rice hulling component having two discharge ends and being connected to a feed end of a whitening machine and a detection hopper, the discharge ends of the whitening machine and the detection hopper being both connected to a feed end of an imperfection rate detector, and the discharge end of the imperfection rate detector being connected to the outside world. The present invention integrates a plurality of existing detection devices, does not require manual weighing sampling and various detection operations, is convenient to use, and has efficient detection.

Description

Technical field:

[0001] The present invention belongs to the technical field of grain detection equipment, and in particular relates to an integrated automatic grain quality detection system. Background technology:

[0002] Currently, when determining the grade of grains like rice, wheat, and corn, it's necessary to perform separate tests, such as moisture, impurity rate, and bulk density, to obtain key quality indicators for evaluating the grains and determine their grade and quality. However, to perform these various tests, inspectors must manually collect samples and use specialized testing equipment, which is labor-intensive, time-consuming, and inefficient. Summary of the invention:

[0003] The purpose of the present invention is to provide an integrated automatic inspection system for grain quality, which integrates multiple existing detection equipment and has a high degree of automation. It does not require manual weighing, sampling and various detection operations, is easy to use and has efficient detection.

[0004] The present invention is achieved in that:

[0005] A grain quality integrated automatic inspection system includes a frame, on which a fine filter device, a screening component, a grain weighing component, a moisture detector, a bifurcated component, a rice hulling component, a whitening machine, a detection hopper, and an imperfection rate detector are arranged. The feed end of the fine filter device is used to receive grains, the discharge end of the fine filter device is connected to the feed end of the screening component, the screening end of the screening component is connected to the feed end of the grain weighing component, the filtering end of the screening component is connected to the recovery container, and the discharge end of the grain weighing component is connected to the recovery container. It is connected to the feed end of the moisture detector, the discharge end of the moisture detector is connected to the feed end of the bifurcated component, the bifurcated component has two discharge ends and are respectively connected to the feed end of the rice husking component and the feed end of the detection hopper, the rice husking component has two discharge ends and one of the discharge ends is connected to the feed end of the whitening machine, and the other discharge end is connected to the feed end of the detection hopper, the discharge end of the whitening machine and the discharge end of the detection hopper are both connected to the feed end of the imperfection rate detector, and the discharge end of the imperfection rate detector is connected to the outside world.

[0006] In the above-mentioned integrated automatic inspection system for grain quality, the fine filter device includes a fine filter box, which has a fine filter cavity, and a fine filter feed port and a fine filter discharge port respectively arranged at the upper and lower parts of the fine filter cavity, and the fine filter discharge port is connected with the feed end of the screening component, and a negative pressure filter channel whose end is connected with the fine filter cavity is provided in the fine filter box, the exhaust port of the exhaust fan is connected with the head end of the negative pressure filter channel, and the air outlet port is connected with the outside world, and a filter screen plate which can separate the negative pressure filter channel from head to tail is provided in the negative pressure filter channel, and a waste discharge port is provided on the negative pressure filter channel located on the side of the filter screen plate away from the exhaust fan.

[0007] In the above-mentioned integrated automatic inspection system for grain quality, the screening component includes a screening slide connected to the frame through a shock-absorbing spring, and a screening vibration motor for driving the screening slide to vibrate and transport the grains forward. The feed end of the screening slide is connected to the discharge end of the fine filtration device. Large-pore filter baffles and small-pore filter baffles are arranged in sequence from top to bottom in the screening slide. The large-pore filter baffles and the small-pore filter baffles divide the screening slide into a large-particle filter chamber, a screening chamber and a small-particle filter chamber, and the discharge end of the screening chamber is connected to the feed end of the grain weighing component, and the discharge ends of the large-particle filter chamber and the small-particle filter chamber are connected to the recovery container.

[0008] In the above-mentioned integrated automatic inspection system for grain quality, the grain weighing component includes a weighing vibration motor and a grain weight sensor element arranged on a frame, a grain weighing and conveying slide is arranged on the vibration end of the weighing vibration motor, a grain weighing container is arranged on the sensing end of the grain weight sensor element, the feed end of the grain weighing and conveying slide is connected to the screening end of the screening component, the discharge end of the grain weighing and conveying slide is connected to the feed end of the grain weighing container, the discharge end of the grain weighing container is connected to the feed end of the moisture detector, and the grain weighing container is connected to a grain weighing valve plate driven by a corresponding power source and capable of blocking or conducting the discharge end of the grain weighing container.

[0009] In the above-mentioned integrated automatic inspection system for grain quality, the moisture detector includes a resistive moisture meter and a near-infrared moisture meter. The frame is provided with a moisture detection bifurcation channel whose feed end is connected to the discharge end of the grain weighing component. The moisture detection bifurcation channel has two discharge ends and is respectively connected to the feed end of the resistive moisture meter and the feed end of the near-infrared moisture meter. The bifurcation between the two discharge ends of the moisture detection bifurcation channel is connected to a moisture detection bifurcation valve plate driven by a corresponding power source and capable of blocking one of the discharge ends. The discharge end of the near-infrared moisture meter is connected to the feed end of the bifurcation component through a cyclone loader, and the discharge end of the resistive moisture meter is connected to a recovery container.

[0010] In the above-mentioned integrated automatic inspection system for grain quality, the frame is provided with an upper weight sensor element and an upper weighing container arranged on the sensing end of the upper weight sensor element, the feed end of the upper weighing container is connected with the discharge end of the moisture detector, the discharge end of the upper weighing container is connected with the feed end of the bifurcation assembly, and the upper weighing container is connected with an upper weighing valve plate driven by a corresponding power source and capable of blocking or conducting the discharge end of the upper weighing container.

[0011] In the above-mentioned integrated automatic inspection system for grain quality, the bifurcation component includes a conveying bifurcation channel arranged on the frame, the conveying bifurcation channel has two discharge ends, and one of the discharge ends is connected to the feed end of the rice husking component, and the other discharge end is connected to the feed end of the detection hopper through the rough channel outside the rice. The bifurcation between the two discharge ends of the conveying bifurcation channel is connected to a conveying bifurcation valve plate driven by a corresponding power source and capable of blocking one of the discharge ends.

[0012] In the above-mentioned integrated automatic inspection system for grain quality, the rice hulling component includes a rice hulling chute connected to the feed end and the corresponding discharge end of the bifurcated component. The rice hulling chute is provided with more than one rice hulling cavity distributed up and down. Two relatively rotating rice hulling rubber rollers are arranged side by side in each rice hulling cavity. The lower end of each rice hulling cavity is connected to the lower end of the negative pressure filter branch. The upper end of the negative pressure filter branch is connected to the rice husk collection funnel through a negative pressure power source and a pipeline. The negative pressure power source generates negative pressure to absorb and transport the impurities generated by the hulling to the husk collection funnel. The lower port of the husk collection funnel is provided with a husk recovery container, and the upper port of the husk collection funnel is covered with a breathable cover. The hulling chute has two discharge ends, which are respectively connected to the feed end of the whitening machine and the feed end of the detection hopper. The bifurcation between the two discharge ends of the hulling chute is connected to a hulling fork valve plate driven by the corresponding power source and capable of blocking one of the discharge ends.

[0013] In the above-mentioned integrated automatic inspection system for grain quality, the waste discharge end of the whitening machine is connected to the husk recovery container arranged on the frame.

[0014] In the above-mentioned integrated automatic inspection system for grain quality, a lower weight sensor element and a lower weighing container arranged on the sensing end of the lower weight sensor element are provided on the frame, the discharge end of the lower weighing container is connected with the feed end of the imperfection rate detector, the feed end of the lower weighing container is connected with the discharge end of the whitening machine and the detection hopper, and the lower weighing container is connected with a lower weighing valve plate driven by a corresponding power source and capable of blocking or conducting the discharge end of the lower weighing container.

[0015] The advantages of the present invention compared to the prior art are:

[0016] The present invention integrates multiple existing detection equipment, occupies a small space, has a compact structure, and has a high degree of automation. The rice can be tested automatically by simply putting it into the fine filtration device. There is no need for manual weighing, sampling, and various detection operations. It is easy to use and has efficient detection. Description of the drawings:

[0017] Figure 1 It is the overall front view of the present invention;

[0018] Figure 2 It is an overall cross-sectional view of the present invention;

[0019] Figure 3 is a perspective view of the fine filtration device of the present invention;

[0020] Figure 4 is a cross-sectional view of the fine filtration device of the present invention;

[0021] Figure 5 It is a whole machine working flow diagram of the present invention.

[0022] In the figure: 1. Rack; 2. Fine filter device; 3. Screening assembly; 4. Grain weighing assembly; 5. Rice hulling assembly; 6. Whitening machine; 7. Detection hopper; 8. Imperfection rate detector; 9. Recovery container; 10. Screening chute; 11. Screening vibration motor; 12. Large-pore filter baffle; 13. Small-pore filter baffle; 14. Weighing vibration motor; 15. Grain weighing and conveying chute; 16. Grain weighing container; 17. Resistance moisture meter; 18. Near-infrared moisture meter; 19. Moisture detection branch channel; 20. Conveyor branch channel; 21. Grain Outer rough channel; 22. Husking chute; 23. Negative pressure filtration branch; 24. Husk collection funnel; 25. Husk recovery container; 26. Lower weighing container; 27. Fine filter box; 28. Fine filter cavity; 29. ​​Fine filter feed port; 30. Fine filter discharge port; 31. Negative pressure filtration channel; 32. Exhaust fan; 33. Filter screen; 34. Waste discharge port; 35. Filter roller; 36. Blades; 37. Fine filter servo motor; 38. Waste recovery container; 39. Fixed frame; 40. Adsorption part; 41. Backflow prevention part; 42. Separation part. Specific implementation method:

[0023] The present invention will be further described below with reference to specific embodiments. Figure 1 —5:

[0024] A grain quality integrated automatic inspection system includes a frame 1, on which a fine filter device 2, a screening component 3, a grain weighing component 4, a moisture detector, a bifurcated component, a rice hulling component 5, a whitening machine 6, a detection hopper 7, and an imperfection rate detector 8 are arranged. The feed end of the fine filter device 2 is used to receive grains, the discharge end of the fine filter device 2 is connected to the feed end of the screening component 3, the screening end of the screening component 3 is connected to the feed end of the grain weighing component 4, the filtering end of the screening component 3 is connected to the recovery container 9, and the grain weighing component 4 is connected to the recovery container 9. The discharge end is connected with the feed end of the moisture detector, the discharge end of the moisture detector is connected with the feed end of the bifurcated component, the bifurcated component has two discharge ends and are respectively connected with the feed end of the rice hulling component 5 and the feed end of the detection hopper 7, the rice hulling component 5 has two discharge ends and one of the discharge ends is connected with the feed end of the whitening machine 6, and the other discharge end is connected with the feed end of the detection hopper 7, the discharge end of the whitening machine 6 and the discharge end of the detection hopper 7 are both connected with the feed end of the imperfection rate detector 8, and the discharge end of the imperfection rate detector 8 is connected with the outside world.

[0025] The present invention integrates multiple existing detection equipment, takes up little space, has a compact structure, and has a high degree of automation. The rice can be tested automatically by simply putting it into the fine filtration device 2. There is no need for manual weighing, sampling, and various detection operations. It is easy to use and has efficient detection.

[0026] In order to effectively filter and detect impurities in rice, the specific structure adopted by the screening component 3 in this embodiment is: the screening component 3 includes a screening chute 10 connected to the frame 1 through a shock-absorbing spring, and a screening vibration motor 11 for driving the screening chute 10 to vibrate and transport the grains forward. The feed end of the screening chute 10 is connected to the discharge end of the fine filtration device 2. A large-pore filter partition 12 and a small-pore filter partition 13 are arranged in the screening chute 10 from top to bottom. The large-pore filter partition 12 and the small-pore filter partition 13 divide the screening chute 10 into a large-particle filter chamber, a screening chamber and a small-particle filter chamber. The discharge end of the screening chamber is connected to the feed end of the grain weighing component 4, and the discharge ends of the large-particle filter chamber and the small-particle filter chamber are connected to the recovery container 9. That is, the grains in the fine filtration device 2 enter the screening chute 10, and the grains are moved forward in the screening chute 10 by means of the vibration of the screening vibration motor 11. During the vibration process, the grains are filtered by the large-pore filter partition 12 and the small-pore filter partition 13, and the grains are filtered one after another and enter the screening cavity. Finally, the grains in the screening cavity enter the grain weighing component 4 for weighing.

[0027] The fine filter device 2 is used to filter lighter impurities and dust from the rice, which is a fine filtration process, while the screening component 3 is used to filter heavier impurities from the rice, which is a coarse filtration process. In addition, in the design of the present invention, the rice is first finely filtered by the fine filter device 2 and then coarsely filtered by the screening component 3. This can effectively prevent lighter impurities and dust from flying outward due to vibration in the screening component 3, affecting the detection accuracy. At the same time, in actual detection operations, a fixed amount of test rice should be poured into the feed end of the fine filter device 2. After the fine filtration and coarse filtration processes of the fine filter device 2 and the screening component 3, the impurity rate can be calculated based on the weight of the grain weighing component 4; and the filtered impurities can be directly put into the recovery container 9.

[0028] Furthermore, the specific structure adopted by the grain weighing component 4 is as follows: the grain weighing component 4 includes a weighing vibration motor 14 and a grain weight sensor element arranged on the frame 1, a grain weighing and conveying slide 15 is arranged on the vibration end of the weighing vibration motor 14, and a grain weighing container 16 is arranged on the sensing end of the grain weight sensor element. The feed end of the grain weighing and conveying slide 15 is connected to the screening end of the screening component 3, the discharge end of the grain weighing and conveying slide 15 is connected to the feed end of the grain weighing container 16, the discharge end of the grain weighing container 16 is connected to the feed end of the moisture detector, and the grain weighing container 16 is connected to a grain weighing valve plate driven by a corresponding power source and capable of blocking or conducting the discharge end of the grain weighing container 16.

[0029] At the same time, in this embodiment, in order to meet the detection requirements of national standards, the moisture detector adopts a resistive moisture meter 17, but in order to improve the detection accuracy and ensure the detection results, this embodiment adopts a combined application of dual moisture detection, that is, the moisture detector includes a resistive moisture meter 17 and a near-infrared moisture meter 18, and the frame 1 is provided with a moisture detection bifurcation channel 19 whose feed end is connected to the discharge end of the grain weighing component 4. The moisture detection bifurcation channel 19 has two discharge ends and is respectively connected to the feed end of the resistive moisture meter 17 and the feed end of the near-infrared moisture meter 18. The bifurcation between the two discharge ends of the moisture detection bifurcation channel 19 is connected to a moisture detection bifurcation valve plate driven by a corresponding power source and capable of blocking one of the discharge ends. The discharge end of the near-infrared moisture meter 18 is connected to the feed end of the bifurcation component through a cyclone feeder, and the discharge end of the resistive moisture meter 17 is connected to the recovery container 9.

[0030] In order to be able to weigh a certain weight of grains for subsequent testing, the frame 1 is provided with an upper weight sensor element and an upper weighing container arranged on the sensing end of the upper weight sensor element. The feed end of the upper weighing container is connected to the discharge end of the moisture detector, and the discharge end of the upper weighing container is connected to the feed end of the bifurcation assembly. The upper weighing container is connected to an upper weighing valve plate driven by a corresponding power source and capable of blocking or opening the discharge end of the upper weighing container.

[0031] Among them, the rice can directly enter the imperfection rate detector 8 for detection in the bifurcated assembly. At the same time, it can also first enter the rice husking assembly 5 for husking to form brown rice, and the brown rice can directly enter the imperfection rate detector 8 for detection. In addition, it can also enter the whitening machine 6 for whitening to form polished rice, and finally the polished rice enters the imperfection rate detector 8 for detection. Therefore, in this embodiment, the specific structure adopted by the bifurcated assembly is as follows: the bifurcated assembly includes a conveying bifurcated channel 20 arranged on the frame 1, and the conveying bifurcated channel 20 has two discharge ends, and one of the discharge ends is connected to the feed end of the rice husking assembly 5, and the other discharge end is connected to the feed end of the detection hopper 7 through the rice outer rough channel 21. The bifurcation between the two discharge ends of the conveying bifurcated channel 20 is connected to a conveying bifurcated valve plate driven by a corresponding power source and capable of blocking one of the discharge ends. That is, the conveying bifurcated valve plate is turned over and blocked, so that the rice grains can enter the rice husking assembly 5 or the detection hopper 7.

[0032] Furthermore, the rice hulling component 5 can directly adopt the existing rice hulling machine on the market. In this embodiment, in order to ensure the rice hulling process to obtain brown rice and filter out the husks produced by the rice hulling, the rice hulling component 5 includes a rice hulling chute 22 having a feed end connected to the corresponding discharge end of the bifurcated component. The rice hulling chute 22 has more than one rice hulling cavity distributed up and down. Two relatively rotating rice hulling rubber rollers are arranged side by side in each rice hulling cavity. The lower port of each rice hulling cavity is connected to the lower end of the negative pressure filter branch 23. The upper end of the negative pressure filter branch 23 is connected to the rice hulling funnel through a negative pressure power source and a pipeline. The hulling chute 22 is connected to the hulling machine 6 and the inspection hopper 7. A negative pressure source generates negative pressure to absorb and transport husks, rice ash, and other impurities produced by hulling into the husk collection hopper 24. A husk recovery container 25 is provided at the lower end of the husk collection hopper 24, and a breathable cover is covered at the upper end of the husk collection hopper 24 to prevent the husks, rice ash, and other impurities from hulling from hulling. The hulling chute 22 has two discharge ends, which are respectively connected to the feed end of the whitening machine 6 and the feed end of the inspection hopper 7. A hulling bifurcated valve plate, driven by a corresponding power source and capable of sealing one of the discharge ends, is connected to the bifurcation between the two discharge ends of the hulling chute 22. Furthermore, in this embodiment, the negative pressure source is a cyclone dust collector.

[0033] In addition, the waste discharge end of the whitening machine 6 is communicated with the chaff recovery container 25 provided on the frame 1.

[0034] In order to carry out weighing sampling in front of the imperfection rate detector 8, the frame 1 is provided with a lower weight sensor element and a lower weighing container 26 arranged on the sensing end of the lower weight sensor element. The discharge end of the lower weighing container 26 is connected with the feed end of the imperfection rate detector 8, and the feed end of the lower weighing container 26 is connected with the whitening machine 6 and the discharge end of the detection hopper 7. The lower weighing container 26 is connected with a lower weighing valve plate driven by a corresponding power source and capable of blocking or conducting the discharge end of the lower weighing container 26.

[0035] The grains can first be transformed into rough rice by the rice husking assembly 5, and then enter the detection hopper 7, and after being weighed, enter the imperfection rate detector 8 for roughness detection;

[0036] The grains can also be first formed into brown rice by the rice husking component 5, and then formed into polished rice by the polishing machine 6. After being weighed, they enter the imperfection rate detector 8 for whole polished rice rate, yellow rice rate, and mutual mixing rate detection;

[0037] The grains can also directly enter the detection hopper 7 through the grain outer roughness channel 21, and after being weighed, enter the imperfection rate detector 8 for detection of grain outer roughness and side-by-side impurities.

[0038] Furthermore, in this embodiment, the specific structure adopted by the fine filter device 2 is as follows: the fine filter device 2 includes a fine filter box 27, the fine filter box 27 has a fine filter cavity 28, and a fine filter feed port 29 and a fine filter discharge port 30 respectively arranged in the upper and lower parts of the fine filter cavity 28, and the fine filter discharge port 30 is connected to the feed end of the screening component 3, and a negative pressure filter channel 31 whose end is connected to the fine filter cavity 28 is provided in the fine filter box 27, the exhaust port of the exhaust fan 32 is connected to the head end of the negative pressure filter channel 31, and the air outlet port is connected to the outside world, and a filter screen plate 33 that can separate the negative pressure filter channel 31 from head to tail is provided in the negative pressure filter channel 31, and a waste discharge port 34 is provided on the negative pressure filter channel 31 located on the side of the filter screen plate 33 away from the exhaust fan 32. The exhaust fan 32 is directly fixed on the outer wall of the fine filter box 27 , or the exhaust fan 32 is built into the fine filter box 27 , and the air outlet of the exhaust fan 32 is opened on the side wall of the fine filter box 27 .

[0039] Among them, in order to enable the negative pressure filtration channel 31 to effectively adsorb and filter the grains, a three-way connection channel is formed between the negative pressure filtration channel 31, the fine filter chamber 28 and the fine filter discharge port 30. The three-way connection channel is rotatably connected to a filter roller shaft 35 near the fine filter chamber 28. The filter roller shaft 35 is evenly distributed circumferentially with a number of blades 36 arranged along its axial direction. That is, the filter roller shaft 35 rotates through the blades 36 to drive the grains in the fine filter chamber 28 into the three-way connection channel, and then the grains can enter the three-way connection channel in batches, so as to ensure that the negative pressure airflow in the negative pressure filtration channel 31 can effectively act on each batch of grains.

[0040] Furthermore, in order to control and adjust the rotation speed of the filter roller shaft 35, a fine filter servo motor 37 is fixed to the outer wall of the fine filter box 27, and the output shaft of the fine filter servo motor 37 is connected to one end of the filter roller shaft 35 through a coupling.

[0041] At the same time, in order to effectively recover impurities and dust blocked at the filter screen 33, the waste discharge port 34 is located below the filter screen 33, and a waste recovery container 38 is detachably connected to the fine filter box 27 located outside the waste discharge port 34. The waste recovery container 38 is used to receive waste falling from the filter screen 33.

[0042] Furthermore, the waste recovery container 38 can be a mesh bag structure with a fixed bag mouth. In the present embodiment, the waste recovery container 38 is a box structure, and the specific connection structure between it and the fine filter box 27 is as follows: a fixed frame 39 is provided on the outer wall surface of the fine filter box 27, and a horizontal sliding groove is formed between the fixed frame 39 and the fine filter box 27, and the waste recovery container 38 slides horizontally in the horizontal sliding groove.

[0043] In addition, in order to prevent impurities and dust from flowing back into the fine filter chamber 28 when there is no negative pressure, the negative pressure filter channel 31 includes an adsorption part 40, an anti-backflow part 41 and a separation part 42 that are connected in sequence. The outer end of the adsorption part 40 is set downward and connected to the fine filter chamber 28. The anti-backflow part 41 has a horizontal height higher than the highest extreme position of the adsorption part 40 and the separation part 42. The exhaust port, filter screen 33 and waste discharge port 34 of the exhaust fan 32 are all arranged on the separation part 42.

[0044] The above embodiment is only one of the preferred embodiments of the present invention and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated automatic grain quality inspection system, characterized by: The invention comprises a frame (1), wherein the frame (1) is provided with a fine filter device (2), a screening component (3), a grain weighing component (4), a moisture detector, a bifurcated component, a rice hulling component (5), a whitening machine (6), a detection hopper (7), and an imperfection rate detector (8); the feed end of the fine filter device (2) is used to receive grains; the discharge end of the fine filter device (2) is connected to the feed end of the screening component (3); the screening end of the screening component (3) is connected to the feed end of the grain weighing component (4); the filtering end of the screening component (3) is connected to a recovery container (9); the grain weighing component (4) The discharge end of the rice hulling machine (5) is connected to the feed end of the moisture detector, the discharge end of the moisture detector is connected to the feed end of the bifurcated component, the bifurcated component has two discharge ends and is respectively connected to the feed end of the rice hulling machine (5) and the feed end of the detection hopper (7), the rice hulling machine (5) has two discharge ends and one of the discharge ends is connected to the feed end of the whitening machine (6), and the other discharge end is connected to the feed end of the detection hopper (7), the discharge end of the whitening machine (6) and the discharge end of the detection hopper (7) are both connected to the feed end of the imperfection rate detector (8), and the discharge end of the imperfection rate detector (8) is connected to the outside world; The fine filter device (2) includes a fine filter box (27), the fine filter box (27) has a fine filter cavity (28), and a fine filter feed port (29) and a fine filter discharge port (30) respectively provided at the upper and lower parts of the fine filter cavity (28), and the fine filter discharge port (30) is connected to the feed end of the screening component (3), the fine filter box (27) is provided with a negative pressure filter channel (31) whose end is connected to the fine filter cavity (28), the exhaust port of the exhaust fan (32) is connected to the head end of the negative pressure filter channel (31), and the air outlet port is connected to the outside, and the negative pressure filter channel (31) is provided with a filter screen plate (33) capable of separating the negative pressure filter channel (31) from the head and tail, and a waste discharge port (34) is provided on the negative pressure filter channel (31) on the side of the filter screen plate (33) away from the exhaust fan (32); A three-way connecting channel is formed between the negative pressure filtration channel (31), the fine filter chamber (28), and the fine filter outlet (30). The three-way connecting channel is rotatably connected to a filter roller shaft (35) near the fine filter chamber (28). The filter roller shaft (35) is evenly distributed circumferentially and has a plurality of blades (36) arranged along its axial direction. A fixed frame (39) is provided on the outer wall surface of the fine filter box (27), a horizontal sliding groove is formed between the fixed frame (39) and the fine filter box (27), and the waste recovery container (38) is horizontally slidably fitted in the horizontal sliding groove; The negative pressure filtration channel (31) includes an adsorption portion (40), a backflow prevention portion (41), and a separation portion (42) which are connected in sequence. The outer end of the adsorption portion (40) is arranged downward and is connected to the fine filter cavity (28). The backflow prevention portion (41) has a horizontal height higher than the highest extreme position of the adsorption portion (40) and the separation portion (42). The exhaust port, the filter screen (33), and the waste discharge port (34) of the exhaust fan (32) are all arranged on the separation portion (42).

2. The integrated automatic inspection system for grain quality according to claim 1, characterized in that: The screening assembly (3) includes a screening slide (10) connected to the frame (1) through a vibration-damping spring, and a screening vibration motor (11) for driving the screening slide (10) to vibrate and transport grains forward. The feed end of the screening slide (10) is connected to the discharge end of the fine filtering device (2). A large-pore filter partition (12) and a small-pore filter partition (13) are sequentially arranged in the screening slide (10) from top to bottom. The large-pore filter partition (12) and the small-pore filter partition (13) divide the screening slide (10) into a large-particle filter chamber, a screening chamber, and a small-particle filter chamber in the upper and lower parts. The discharge end of the screening chamber is connected to the feed end of the grain weighing assembly (4), and the discharge ends of the large-particle filter chamber and the small-particle filter chamber are connected to the recovery container (9).

3. The integrated automatic inspection system for grain quality according to claim 1, characterized in that: The grain weighing assembly (4) includes a weighing vibration motor (14) and a grain weight sensing element arranged on a frame (1); a grain weighing conveying slide (15) is arranged on the vibration end of the weighing vibration motor (14); a grain weighing container (16) is arranged on the sensing end of the grain weight sensing element; the feed end of the grain weighing conveying slide (15) is connected to the screening end of the screening assembly (3); the discharge end of the grain weighing conveying slide (15) is connected to the feed end of the grain weighing container (16); the discharge end of the grain weighing container (16) is connected to the feed end of the moisture detector; and the grain weighing container (16) is connected to a grain weighing valve plate driven by a corresponding power source and capable of blocking or conducting the discharge end of the grain weighing container (16).

4. The integrated automatic inspection system for grain quality according to claim 1, characterized in that: The moisture detector includes a resistive moisture meter (17) and a near-infrared moisture meter (18). The frame (1) is provided with a moisture detection bifurcated channel (19) whose feed end is connected to the discharge end of the grain weighing component (4). The moisture detection bifurcated channel (19) has two discharge ends and is respectively connected to the feed end of the resistive moisture meter (17) and the feed end of the near-infrared moisture meter (18). A moisture detection bifurcated valve plate driven by a corresponding power source and capable of blocking one of the discharge ends is connected to the bifurcation between the two discharge ends of the moisture detection bifurcated channel (19). The discharge end of the near-infrared moisture meter (18) is connected to the feed end of the bifurcated component through a cyclone feeder, and the discharge end of the resistive moisture meter (17) is connected to the recovery container (9).

5. The integrated automatic inspection system for grain quality according to claim 1 or 4, characterized in that: The frame (1) is provided with an upper weight sensing element and an upper weighing container provided on the sensing end of the upper weight sensing element, the feed end of the upper weighing container is connected to the discharge end of the moisture detector, the discharge end of the upper weighing container is connected to the feed end of the bifurcated component, and the upper weighing container is connected to an upper weighing valve plate driven by a corresponding power source and capable of blocking or conducting the discharge end of the upper weighing container.

6. The integrated automatic grain quality inspection system according to claim 1, characterized in that: The bifurcated assembly includes a conveying bifurcated channel (20) arranged on the frame (1), the conveying bifurcated channel (20) having two discharge ends, one of which is connected to the feed end of the rice husking assembly (5), and the other discharge end is connected to the feed end of the detection hopper (7) through the rice outer rough channel (21), and a conveying bifurcated valve plate driven by a corresponding power source and capable of blocking one of the discharge ends is connected to the bifurcation between the two discharge ends of the conveying bifurcated channel (20).

7. The integrated automatic grain quality inspection system according to claim 1, characterized in that: The rice hulling assembly (5) includes a rice hulling chute (22) connected to the feed end and the corresponding discharge end of the bifurcated assembly. The rice hulling chute (22) has more than one rice hulling cavity distributed along the upper and lower sides. Two relatively rotating rice hulling rubber rollers are arranged side by side in each rice hulling cavity. The lower end of each rice hulling cavity is connected to the lower end of the negative pressure filtering branch (23). The upper end of the negative pressure filtering branch (23) is connected to the rice hull collecting funnel (24) through a negative pressure power source and a pipeline. The negative pressure power source generates negative pressure adsorption and Impurities generated by rice hulling are transported to a rice hull collecting hopper (24). A rice hull recovery container (25) is provided at the lower end of the rice hull collecting hopper (24). An upper end of the rice hull collecting hopper (24) is covered with a breathable cover. The rice hulling chute (22) has two discharge ends, which are respectively connected to the feed end of the whitening machine (6) and the feed end of the detection hopper (7). A rice hulling bifurcated valve plate driven by a corresponding power source and capable of blocking one of the discharge ends is connected to the bifurcation between the two discharge ends of the rice hulling chute (22).

8. The integrated automatic grain quality inspection system according to claim 1 or 7, characterized in that: The waste discharge end of the whitening machine (6) is in communication with a husk recovery container (25) provided on the machine frame (1).

9. The integrated automatic inspection system for grain quality according to claim 1, characterized in that: The frame (1) is provided with a lower weight sensor element and a lower weighing container (26) provided on the sensing end of the lower weight sensor element. The discharge end of the lower weighing container (26) is connected to the feed end of the imperfection rate detector (8). The feed end of the lower weighing container (26) is connected to the discharge end of the whitening machine (6) and the detection hopper (7). The lower weighing container (26) is connected to a lower weighing valve plate driven by a corresponding power source and capable of blocking or conducting the discharge end of the lower weighing container (26).

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