Integrated automatic inspection system for grain quality

Abstract

The invention belongs to the technical field of grain detection equipment, and particularly relates to a grain quality integrated automatic inspection system which comprises a rack, a fine filtering device is arranged on the rack, the discharging end of the fine filtering device is communicated with a screening assembly, the screening end of the screening assembly is communicated with a grain weighing assembly, and the filtering end of the screening assembly is communicated with a recycling container. The discharging end of the grain weighing assembly communicates with the moisture detector, the discharging end of the moisture detector communicates with the forking assembly, the forking assembly is provided with two discharging ends and communicates with the rice hulling assembly and the detection hopper correspondingly, and the rice hulling assembly is provided with two discharging ends and communicates with the feeding end of the whitening machine and the detection hopper. The discharging end of the whitening machine and the discharging end of the detection hopper are both communicated with the feeding end of the imperfection rate detector, and the discharging end of the imperfection rate detector is communicated with the outside. A plurality of existing detection devices are integrated, manual weighing, sampling and various detection operations are not needed, use is convenient, and detection is efficient.

Description

Technical field:

[0001] The 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] At present, in order to obtain important indicators for evaluating the quality of grains and determine the grade and quality of grains such as rice, wheat, and corn, it is necessary to conduct moisture testing, impurity rate testing, bulk density testing, and other testing items on the grains. Correspondingly, in order to be able to carry out the above-mentioned different testing items, the current testing personnel need to manually take samples and conduct them in corresponding special testing instruments and equipment, which is laborious and laborious, and has low testing efficiency. 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, has a high degree of automation, 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] The invention discloses an integrated automatic inspection system for grain quality, comprising a frame, on which a fine filter device, a screening component, a grain weighing component, a moisture detector, a bifurcated component, a rice husking 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 with the feed end of the screening component, the screening end of the screening component is connected with the feed end of the grain weighing component, the filtering end of the screening component is connected with a recovery container, and the discharge end of the grain weighing component is connected with a 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, the fine filter box has a fine filter cavity, and a fine filter feed port and a fine filter discharge port are 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, a negative pressure filter channel whose end is connected with the fine filter cavity is arranged 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, and a filter screen plate which can separate the negative pressure filter channel from head to tail is arranged in the negative pressure filter channel, and a waste discharge port is arranged 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 a frame through a shock-absorbing spring, and a screening vibration motor for driving the screening slide to vibrate and transport 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 the screening slide from top to bottom. 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 from top to bottom, 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 chute 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 chute is connected with the screening end of the screening component, the discharge end of the grain weighing and conveying chute is connected with the feed end of the grain weighing container, the discharge end of the grain weighing container is connected with the feed end of the moisture detector, and the grain weighing container is connected with a grain weighing valve plate which is driven by a corresponding power source and can block or conduct 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, an upper weight sensor element and an upper weighing container arranged on the sensing end of the upper weight sensor element are arranged on the frame, 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 which is driven by a corresponding power source and can block or conduct 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 a 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, and 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 husking component includes a rice husking chute whose feeding end is connected to the corresponding discharging end of the bifurcated component, and the rice husking chute has more than one rice husking cavity distributed up and down, and two relatively rotating rice husking rubber rollers are arranged side by side in each rice husking cavity, and the lower port of each rice husking cavity is connected to the lower end of the negative pressure filter branch, and the upper end of the negative pressure filter branch is connected to the rice husk collecting 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 rice 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 rice hulling chute has two discharge ends, which are respectively connected with the feed end of the whitening machine and the feed end of the detection hopper. The bifurcation between the two discharge ends of the rice hulling chute is connected with a rice 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 arranged 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 which is driven by a corresponding power source and can block or conduct the discharge end of the lower weighing container.

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

[0016] The present invention integrates a plurality of existing detection devices, occupies a small space, has a compact structure, and has a high degree of automation. The rice can be automatically tested by only putting the rice into the fine filtering device, without the need for manual weighing, sampling, and various detection operations. The invention is convenient 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 is an overall cross-sectional view of the present invention;

[0019] Figure 3 is a three-dimensional diagram of the fine filter device of the present invention;

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

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

[0022] In the figure: 1. frame; 2. fine filter device; 3. screening component; 4. grain weighing component; 5. rice husking component; 6. whitening machine; 7. detection hopper; 8. imperfection rate detector; 9. recovery container; 10. screening slide; 11. screening vibration motor; 12. large-pore filter baffle; 13. small-pore filter baffle; 14. weighing vibration motor; 15. grain weighing and conveying slide; 16. grain weighing container; 17. resistance moisture meter; 18. near-infrared moisture meter; 19. moisture detection bifurcation channel; 20. conveying bifurcation channel; 21. Outer rough channel; 22, rice hulling slide; 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 inlet; 30, fine filter outlet; 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 is further described below with reference to specific embodiments. Figure 1 —5:

[0024] A grain quality integrated automatic inspection system comprises 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 husking component 5, a whitening machine 6, a detection hopper 7 and an imperfection rate detector 8 are arranged, a feed end of the fine filter device 2 is used to receive grains, a discharge end of the fine filter device 2 is connected with a feed end of the screening component 3, a screening end of the screening component 3 is connected with a feed end of the grain weighing component 4, a filtering end of the screening component 3 is connected with a recovery container 9, and the grain weighing component 4 is connected with a filter. 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 husking component 5 and the feed end of the detection hopper 7, the rice husking 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 a plurality of existing detection devices, occupies a small space, has a compact structure, and has a high degree of automation. The rice can be automatically tested by only putting the rice into the fine filtering device 2, without the need for manual weighing, sampling, and various detection operations. The invention is convenient 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, and the screening chute 10 is sequentially provided with a large-pore filter partition 12 and a small-pore filter partition 13 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, and 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, and in the vibration process, the grains are filtered through the large-pore filter baffle 12 and the small-pore filter baffle 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 in the rice, which belongs to fine filtration treatment, and the screening component 3 is used to filter heavier impurities in the rice, which belongs to coarse filtration treatment. 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, which can effectively prevent the lighter impurities and dust from flying outward due to vibration in the screening component 3, affecting the detection accuracy. At the same time, in the actual detection operation, a certain amount of test rice should be poured into the feed end of the fine filter device 2. After the fine filtration and coarse filtration treatment by the fine filter device 2 and the screening component 3, the impurity rate can be calculated in combination with the weighing weight of the grain weighing component 4; and the filtered impurity part can directly enter 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 chute 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 sensor element, the feed end of the grain weighing and conveying chute 15 is connected with the screening end of the screening component 3, the discharge end of the grain weighing and conveying chute 15 is connected with the feed end of the grain weighing container 16, the discharge end of the grain weighing container 16 is connected with the feed end of the moisture detector, and the grain weighing container 16 is connected with a grain weighing valve plate which is driven by a corresponding power source and can block or conduct 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 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 which is driven by a corresponding power source and can block or conduct 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 component, and at the same time, it can also enter the rice husking component 5 for rice husking to form brown rice, and the brown rice can directly enter the imperfection rate detector 8 for detection, and 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 component is: the bifurcated component 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 component 5, and the other discharge end is connected to the feed end of the detection hopper 7 through the outer rough channel 21 of the rice, and the bifurcated part 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 grains can enter the rice husking component 5 or the detection hopper 7.

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

[0033] In addition, the waste discharge end of the whitening machine 6 is communicated with the husk recovery container 25 arranged 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, 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, and 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 may first be transformed into brown 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 rate detection;

[0036] The grains can also be firstly processed into brown rice by the rice husking assembly 5, and then processed into polished rice by the polishing machine 6, and then, after being weighed, enter the imperfection rate detector 8 to detect the polished rice rate, yellow rice rate, and intermixing rate;

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

[0038] Furthermore, in the present 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 at the upper and lower parts of the fine filter cavity 28, and the fine filter discharge port 30 is connected with the feed end of the screening component 3, a negative pressure filter channel 31 whose end is connected with the fine filter cavity 28 is arranged in the fine filter box 27, an exhaust port of the exhaust fan 32 is connected with the head end of the negative pressure filter channel 31, and an air outlet port is connected with the outside, and a filter screen plate 33 capable of separating the negative pressure filter channel 31 from head to tail is arranged in the negative pressure filter channel 31, and a waste discharge port 34 is arranged on the negative pressure filter channel 31 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 surface of the fine filter box 27 , or the exhaust fan 32 is built into the fine filter box 27 , and the air outlet port 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 outlet 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 plurality 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 surface 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 mesh plate 33, the waste discharge port 34 is located below the filter mesh plate 33, and a waste recovery container 38 is detachably connected to the fine filter box 27 located outside the waste discharge port 34, and the waste recovery container 38 is used to receive the waste falling from the filter mesh plate 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 is horizontally slidably fitted 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 portion 40, an anti-backflow portion 41 and a separation portion 42 which are connected in sequence. The outer end of the adsorption portion 40 is arranged downward and connected to the fine filter chamber 28. The anti-backflow 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, filter screen 33 and waste discharge port 34 of the exhaust fan 32 are all arranged on the separation portion 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 protection scope of the present invention.

Claims

1. An integrated automatic inspection system for grain quality, characterized in that: The invention comprises a frame (1), on which a fine filter device (2), a screening component (3), a grain weighing component (4), a moisture detector, a bifurcating component, a rice husking component (5), a whitening machine (6), a detection hopper (7) and an imperfection rate detector (8) are arranged; a feed end of the fine filter device (2) is used to receive grains; a discharge end of the fine filter device (2) is connected to a feed end of the screening component (3); a screening end of the screening component (3) is connected to a feed end of the grain weighing component (4); a filtering end of the screening component (3) is connected to a recovery container (9); and the grain weighing component (4) is connected to a recovery container (9). The discharge end of the rice husking 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 are respectively connected to the feed end of the rice husking machine (5) and the feed end of the detection hopper (7), the rice husking machine (5) has two discharge ends, one of which is connected to the feed end of the rice husking machine (6) and the other is connected to the feed end of the detection hopper (7), the discharge end of the rice husking 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.

2. The integrated automatic inspection system for grain quality according to claim 1 is characterized by: The fine filter device (2) comprises a fine filter box (27), wherein 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 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), and 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 to the tail, and a waste discharge port (34) is arranged on the negative pressure filter channel (31) on the side of the filter screen plate (33) far from the exhaust fan (32).

3. The integrated automatic inspection system for grain quality according to claim 1 is characterized by: The screening assembly (3) comprises a screening slide (10) connected to a frame (1) via a damping spring, and a screening vibration motor (11) for driving the screening slide (10) to vibrate and convey 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 arranged in sequence from top to bottom in the screening slide (10). The large-pore filter partition (12) and the small-pore filter partition (13) separate the screening slide (10) into a large-particle filter chamber, a screening chamber and a small-particle filter chamber from top to bottom. 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 a recovery container (9).

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

5. The integrated automatic inspection system for grain quality according to claim 1 is characterized by: The moisture detector comprises 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 feeding end is connected to the discharging end of the grain weighing component (4); the moisture detection bifurcated channel (19) has two discharging ends which are respectively connected to the feeding end of the resistive moisture meter (17) and the feeding end of the near-infrared moisture meter (18); a moisture detection bifurcated valve plate which is driven by a corresponding power source and can block one of the discharging ends is connected to the bifurcation between the two discharging ends of the moisture detection bifurcated channel (19); the discharging end of the near-infrared moisture meter (18) is connected to the feeding end of the bifurcated component via a cyclone feeder; and the discharging end of the resistive moisture meter (17) is connected to a recovery container (9).

6. The integrated automatic inspection system for grain quality according to claim 1 or 5, characterized in that: 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; the discharge end of the upper weighing container is connected to the feed end of the bifurcated component; the upper weighing container is connected to an upper weighing valve plate which is driven by a corresponding power source and can block or conduct the discharge end of the upper weighing container.

7. The integrated automatic inspection system for grain quality according to claim 1 is characterized by: The bifurcated assembly comprises a conveying bifurcated channel (20) arranged on a frame (1), the conveying bifurcated channel (20) having two discharge ends, one of which is connected to a feed end of a rice husking assembly (5), and the other is connected to a feed end of a detection hopper (7) via a 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 a bifurcation between the two discharge ends of the conveying bifurcated channel (20).

8. The integrated automatic inspection system for grain quality according to claim 1 is characterized by: The rice husking assembly (5) comprises a rice husking chute (22) having a feed end connected to a corresponding discharge end of a bifurcated assembly, the rice husking chute (22) having more than one rice husking cavity distributed up and down, each rice husking cavity having two rice husking rubber rollers arranged side by side for relative rotation, the lower end of each rice husking cavity being connected to the lower end of a negative pressure filtering branch (23), the upper end of the negative pressure filtering branch (23) being connected to a rice husk collecting funnel (24) via a negative pressure power source and a pipeline, the negative pressure power source generating negative pressure adsorption and Impurities generated by rice husking are transported to a rice husk collecting hopper (24); a rice husk recovery container (25) is provided at the lower end of the rice husk collecting hopper (24); an upper end of the rice husk collecting hopper (24) is covered with a breathable cover; a rice husking chute (22) has two discharge ends, which are respectively connected to a feed end of a whitening machine (6) and a feed end of a detection hopper (7); a rice husking fork valve plate driven by a corresponding power source and capable of blocking one of the discharge ends is connected to a fork between the two discharge ends of the rice husking chute (22).

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

10. 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) arranged 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 ends 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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