A corn sorting device based on machine vision

Abstract

The application discloses a kind of corn sorting device based on machine vision, it is related to corn sorting technical field.The present application includes main frame and storage component, storage component includes support, the top of support is equipped with storage bin, the inside of support is provided with the vibration dispersion posture adjustment component for adjusting corn posture;The inside of main frame is provided with conveying assembly, sorting component and discharge bin, the top of main frame is provided with image recognition component, the inside of main frame is equipped with general control box, image recognition component includes the mounting bracket fixedly connected to the top of main frame, the inside of mounting bracket is fixedly connected with lower cross bar and upper cross bar, the bottom of lower cross bar is equipped with multiple photoelectric sensors, and multiple identification cameras are installed on the outside of upper cross bar.The posture of corn is adjusted by vibration dispersion posture adjustment component, image recognition component realizes quality identification, and then automatic separation is realized by sorting component, which reduces the time-consuming of manual intervention, while ensuring the accurate sorting of different grades of corn, improves the efficiency of automatic sorting.

Description

Technical Field

[0001] This invention belongs to the field of corn sorting technology, and in particular relates to a corn sorting device based on machine vision. Background Technology

[0002] Corn is an important food crop, feed ingredient, and basic material for industrial processing in my country. Its quality directly affects the value and safety of the final product. From field harvesting to end consumption, by distinguishing the plumpness and integrity of corn kernels and picking out discolored, moldy kernels and impurities, we can not only ensure the taste and nutrition of edible corn and help control safety hazards such as aflatoxin in feed corn, but also provide standardized raw materials for industrial processing.

[0003] Currently, manual sorting is still the most common method in corn sorting, which mainly relies on visual observation and experience. Under this method, the sorting standards are easily affected by subjective factors of personnel, and the same batch of corn often has grading deviations, making it difficult to meet standardized production requirements. At the same time, manual sorting is labor-intensive, and operators are prone to visual fatigue after working for a long time, which leads to an increase in the missed sorting rate of moldy kernels, broken kernels and other defective kernels. In addition, the processing efficiency of manual sorting is low.

[0004] To address these issues, we provide a machine vision-based corn sorting device. Summary of the Invention

[0005] The purpose of this invention is to provide a corn sorting device based on machine vision. The device achieves uniform dispersion and regular posture of corn through a vibration dispersion and posture adjustment component. It is combined with an image recognition component to accurately capture the appearance features of corn and complete the quality judgment. Then, the sorting component drives a double-stroke electric cylinder to achieve graded dropping into the bin based on the recognition results. This solves the problems of low sorting accuracy, poor efficiency and difficulty in adapting to large-scale sorting needs of existing corn sorting devices.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] The present invention is a corn sorting device based on machine vision, including a main frame and a storage component. The storage component includes a support, a storage bin is installed on the top of the support, and a vibration dispersion and attitude adjustment component for adjusting the posture of corn is provided inside the support.

[0008] The main frame is equipped with a conveying assembly for transporting corn, a sorting assembly for screening corn, and a discharge bin for discharging corn. The top of the main frame is equipped with an image recognition assembly for identifying corn. The main frame is equipped with a central control box.

[0009] The vibration evacuation and attitude adjustment assembly includes a first base frame located inside the support frame. A mounting frame is fixed to the top of the first base frame. A vibration groove is installed on the top of the mounting frame. A sieve plate is fixed inside the vibration groove. A plurality of parallel attitude adjustment plates are fixed to the top of the sieve plate. The end of the attitude adjustment plate facing the storage bin is wedge-shaped. Vibration motors are installed on both sides of the mounting frame.

[0010] The image recognition component includes a mounting bracket fixed to the top of the main frame. A lower crossbar and an upper crossbar are fixed inside the mounting bracket. Multiple photoelectric sensors are installed at the bottom of the lower crossbar, and multiple recognition cameras are installed on the outside of the upper crossbar.

[0011] The sorting assembly includes third fixed seats fixed to both sides of the second base frame, a first fixed shaft fixed between the two third fixed seats, a plurality of sorting slot plates rotatably connected to the outside of the first fixed shaft, a horizontal plate fixed inside the second base frame, two fourth fixed seats fixed to the bottom of the horizontal plate, a second fixed shaft fixed between the two fourth fixed seats, and a double-stroke electric cylinder installed between the second fixed shaft and the bottom of the corresponding sorting slot plate.

[0012] The present invention is further configured such that the conveying assembly includes a second base frame fixed inside the main frame, a conveyor is mounted on the top of the second base frame, two first fixed seats are fixed to the top of the second base frame, a guide for guiding corn is fixed between the two first fixed seats, and the guide is located above the conveyor.

[0013] The present invention is further configured such that the discharge bin includes an outer bin body fixed inside the main frame, and a first partition, a second partition and a third partition are sequentially fixed inside the outer bin body, and the heights of the first partition, the second partition and the third partition decrease sequentially, and the heights of the first partition, the second partition and the third partition respectively correspond to the stroke of the double-stroke electric cylinder.

[0014] The present invention is further configured such that the portion of the screen plate located below the discharge port of the storage silo is a flat material distribution area, the portion of the screen plate with screen holes is a straight groove area, and the attitude adjustment plate is installed in the straight groove area.

[0015] The present invention is further configured such that a slag discharge hopper communicating with the vibration trough is fixedly connected to the bottom of the vibration trough, and a slag receiving box is fixedly connected inside the first base frame, and the slag receiving box is located below the outlet of the slag discharge hopper.

[0016] The present invention is further configured such that the flow guide includes a plurality of parallel flow guide plates, and the channel formed by the plurality of flow guide plates corresponds to the channel formed by the plurality of attitude adjustment plates and the plurality of sorting slot plates, and the bottom of the plurality of flow guide plates is fixedly connected to a base plate.

[0017] The present invention is further configured such that two second fixing seats are fixedly connected to the top of the second base frame, a comb-shaped baffle is fixedly connected between the two second fixing seats, and a guide plate is fixedly connected to the top of the baffle.

[0018] The present invention is further configured such that a protective cover is fixedly connected to the outside of the mounting bracket, an inspection port is provided on the top of the protective cover, and an inspection cover for sealing the inspection port is installed on the top of the protective cover.

[0019] The present invention is further configured such that the number of photoelectric sensors is consistent with the number of sorting slot plates, and the photoelectric sensors correspond to the channels composed of multiple guide plates; the number of recognition cameras is one-third of the number of sorting slot plates, and the recognition range of the recognition cameras covers the corresponding channels composed of three guide plates.

[0020] The present invention has the following beneficial effects:

[0021] 1. This invention, through the coordinated design of the vibration motor and the wedge-shaped attitude adjustment plate in the vibration dispersion and attitude adjustment component, can not only achieve uniform dispersion and regular posture of corn on the screen plate, avoiding stacking problems during the conveying and recognition process, but also complete the preliminary filtration of fine impurities with the cooperation of the screen plate and the slag discharge hopper, providing a basic guarantee for the accuracy of subsequent image recognition and the smoothness of the sorting process, effectively improving the overall sorting efficiency.

[0022] 2. This invention achieves fully automated sorting of corn from conveying and positioning, quality identification, to grading and silo discharge by using a photoelectric sensor, an identification camera, and a dual-stroke electric cylinder in a highly efficient linkage, along with the corresponding structure of the guide and the discharge bin partition. The photoelectric sensor triggers the identification camera to quickly complete the quality judgment, and the dual-stroke electric cylinder drives the sorting trough to flip in real time to achieve grading, reducing the time-consuming manual intervention. While ensuring accurate sorting of corn of different grades, it also improves the efficiency of automatic sorting. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of the vibration evacuation and attitude adjustment component of the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of the vibration groove, sieve plate and attitude adjustment plate of the present invention.

[0027] Figure 4 This is a schematic diagram of the conveying assembly of the present invention.

[0028] Figure 5 This is a schematic diagram of the bottom structure of the conveying assembly of the present invention.

[0029] Figure 6 This is a schematic diagram of the discharge bin of the present invention.

[0030] Figure 7 This is a schematic diagram of the flow guide of the present invention.

[0031] Figure 8 This is a schematic diagram of the image recognition component of the present invention.

[0032] Figure 9 for Figure 5 A magnified structural diagram of point A in the middle.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 100. Storage assembly; 101. Support frame; 102. Storage silo; 200. Vibration evacuation and attitude adjustment assembly; 201. First base frame; 202. Mounting frame; 203. Vibration motor; 204. Vibration trough; 205. Screen plate; 206. Attitude adjustment plate; 207. Slag discharge hopper; 208. Slag receiving box; 300. Conveying assembly; 301. Second base frame; 302. Conveyor; 303. First fixed seat; 304. Flow guide; 304a. Base plate; 304b. Flow guide plate; 305. Second fixed seat; 306. Baffle; 400. Image recognition assembly; 401. Safety device. Mounting frame; 402, lower crossbar; 403, photoelectric sensor; 404, upper crossbar; 407, identification camera; 408, protective cover; 408a, inspection port; 408b, inspection cover; 500, sorting assembly; 501, third fixed seat; 502, first fixed shaft; 503, sorting trough plate; 504, cross plate; 505, fourth fixed seat; 506, second fixed shaft; 507, double-stroke electric cylinder; 600, discharge bin; 601, outer bin body; 602, first partition; 603, second partition; 604, third partition; 700, main control box; 800, main frame. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] Please see Figures 1 to 3 This invention relates to a machine vision-based corn sorting device, comprising a main frame 800 and a storage component 100. The storage component 100 includes a support 101, with a storage bin 102 mounted on the top of the support 101. The support 101 is internally equipped with a vibration dispersion and attitude adjustment component 200 for adjusting the posture of the corn. The storage bin 102 enables centralized storage of corn, meeting the feeding requirements for continuous sorting. The support 101 provides stable support for the storage bin 102 and the vibration dispersion and attitude adjustment component 200. The vibration dispersion and attitude adjustment component 200 can pre-regulate the posture of the corn, avoiding stacking during subsequent conveying and identification processes, and improving sorting efficiency.

[0038] The main frame 800 is equipped with a conveying component 300 for conveying corn, a sorting component 500 for screening corn, and a discharge bin 600 for discharging corn. The top of the main frame 800 is equipped with an image recognition component 400 for identifying corn. The main frame 800 is equipped with a central control box 700, which can coordinate and control the collaborative work of each component to ensure the automated operation of the sorting process.

[0039] The vibration evacuation and attitude adjustment component 200 includes a first base frame 201 located inside the support 101. A mounting frame 202 is fixedly connected to the top of the first base frame 201. A vibration groove 204 is installed on the top of the mounting frame 202. A sieve plate 205 is fixedly connected inside the vibration groove 204. Multiple parallel attitude adjustment plates 206 are fixedly connected to the top of the sieve plate 205. The end of the attitude adjustment plate 206 facing the storage bin 102 is wedge-shaped. Vibration motors 203 are installed on both sides of the mounting frame 202. The vibration motors 203 can drive the vibration groove 204 to generate stable vibration, so that the corn is evenly dispersed on the sieve plate 205. The wedge-shaped attitude adjustment plate 206 can guide the corn into the subsequent channel in a uniform posture, avoiding the corn from being stacked laterally or tilted, thus ensuring the accurate recognition of the image recognition component 400. The sieve plate 205 can also initially filter out small impurities in the corn.

[0040] Specifically, the portion of the sieve plate 205 located below the discharge port of the storage silo 102 is a flattening and loose material area, and the portion of the sieve plate 205 with sieve holes is a straight groove area. The posture adjustment plate 206 is installed in the straight groove area. The flattening and loose material area allows the corn discharged from the storage silo 102 to be initially flattened, avoiding poor dispersion caused by concentrated accumulation. The sieve holes in the straight groove area can separate impurities such as broken grains and dust from the corn. The cooperation between the posture adjustment plate 206 and the straight groove area can adjust the posture of the corn while removing impurities.

[0041] Furthermore, a slag discharge hopper 207 connected to the bottom of the vibrating trough 204 is fixedly connected to the bottom of the vibrating trough 204, and a slag receiving box 208 is fixedly connected inside the first base frame 201. The slag receiving box 208 is located below the output port of the slag discharge hopper 207, and the impurities separated by the screen plate 205 can be introduced into the slag receiving box 208 through the slag discharge hopper 207.

[0042] The operation process of this embodiment is as follows: When it is necessary to adjust the posture of the corn, the corn to be sorted is first poured into the storage bin 102 in batches. The corn falls naturally from the outlet of the storage bin 102 to the flat material area of ​​the screen plate 205. At this time, the vibration motor 203 is started through the main control box 700. The vibration motor 203 drives the mounting frame 202 and the top vibration groove 204 to generate stable vibration. The vibration force makes the corn in the flat material area quickly flatten and move towards the straight groove area. After entering the straight groove area, the corn is continuously rolled under the action of vibration. The mixed particles, dust and other fine impurities fall into the bottom of the vibration groove 204 through the screen holes of the screen plate 205, and then fall into the slag collection box 208 after being collected by the slag discharge hopper 207 to complete the impurity removal. At the same time, the posture adjustment plate 206 in the straight groove area guides the corn into the channel formed by the adjacent posture adjustment plate 206 through the wedge-shaped end. During the vibration process, the corn is gradually regulated to a uniform orientation and finally discharged from the end of the vibration groove 204 in an orderly posture and enters the subsequent conveying component 300.

[0043] Example 2

[0044] Please see Figures 1 to 9 Based on the first specific embodiment, the conveying assembly 300 includes a second base frame 301 fixed inside the main frame 800. A conveyor 302 is installed on the top of the second base frame 301. Two first fixed seats 303 are fixedly connected to the top of the second base frame 301. A guide 304 for guiding corn is fixed between the two first fixed seats 303. The guide 304 is located above the conveyor 302. The conveyor 302 realizes the continuous conveying of corn. The guide 304 can guide the corn in a direction, so that the corn enters the subsequent sorting stage along a fixed channel, avoiding the corn from shifting or mixing during the conveying process and ensuring the orderly sorting.

[0045] The image recognition component 400 includes a mounting frame 401 fixed to the top of the main frame 800. A lower crossbar 402 and an upper crossbar 404 are fixed inside the mounting frame 401. Multiple photoelectric sensors 403 are installed at the bottom of the lower crossbar 402, and multiple recognition cameras 407 are installed on the outside of the upper crossbar 404. The photoelectric sensors 403 can detect the conveying position of the corn and trigger the recognition cameras 407 to work. The recognition cameras 407 can quickly capture the appearance features of the corn, providing image data support for subsequent sorting and achieving efficient identification of corn quality.

[0046] The sorting assembly 500 includes third fixed seats 501 fixed to both sides of the second base frame 301, a first fixed shaft 502 fixed between the two third fixed seats 501, and multiple sorting troughs 503 rotatably connected to the outside of the first fixed shaft 502. A horizontal plate 504 is fixed inside the second base frame 301, and two fourth fixed seats 505 are fixed to the bottom of the horizontal plate 504. A second fixed shaft 506 is fixed between the two fourth fixed seats 505. A double-stroke electric cylinder 507 is installed between the second fixed shaft 506 and the bottom of the corresponding sorting trough 503. The double-stroke electric cylinder 507 can drive the sorting trough 503 to rotate at different angles, thereby adapting to the sorting requirements of different grades of corn. The arrangement of multiple sorting troughs 503 allows the sorting process to be carried out in parallel, improving sorting efficiency.

[0047] The discharge bin 600 includes an outer bin 601 fixed inside the main frame 800. Inside the outer bin 601, a first partition 602, a second partition 603, and a third partition 604 are fixed in sequence, with the heights of the first partition 602, the second partition 603, and the third partition 604 decreasing sequentially. The heights of the first partition 602, the second partition 603, and the third partition 604 correspond to the stroke of the double-stroke electric cylinder 507. The first partition 602, the second partition 603, and the third partition 604 divide the outer bin 601 into multiple independent discharge areas. The design of their heights corresponding to the stroke of the double-stroke electric cylinder 507 can ensure that corn of different grades falls accurately into the corresponding areas, avoid corn mixing after sorting, and improve sorting accuracy.

[0048] Specifically, the flow guide 304 includes multiple parallel flow guide plates 304b, and the channel formed by the multiple flow guide plates 304b corresponds to the channel formed by the multiple attitude adjustment plates 206 and the multiple sorting trough plates 503. The bottom of the multiple flow guide plates 304b is fixedly connected to a base plate 304a. The corresponding design of the channel formed by the flow guide plates 304b, the channel of the attitude adjustment plate 206, and the sorting trough plate 503 forms a continuous path for corn conveying, ensuring that the corn will not deviate or get stuck during the process from attitude adjustment to conveying and then to sorting.

[0049] The top of the second base frame 301 is fixed with two second fixing seats 305, and a comb-shaped baffle 306 is fixed between the two second fixing seats 305, and the guide plate 304b is fixed to the top of the baffle 306.

[0050] Furthermore, a protective cover 408 is fixedly connected to the outside of the mounting bracket 401. The top of the protective cover 408 has an inspection port 408a. An inspection cover 408b is installed on the top of the protective cover 408 to block the inspection port 408a. The protective cover 408 can effectively protect the internal precision components such as the photoelectric sensor 403 and the identification camera 407, preventing damage from dust, moisture or external impact, and extending the service life of the components. The cooperation between the inspection port 408a and the inspection cover 408b provides a convenient channel for the daily maintenance, calibration and fault repair of the components, reducing the difficulty of maintenance.

[0051] The number of photoelectric sensors 403 is consistent with that of sorting trough plates 503, and the photoelectric sensors 403 correspond to the channels formed by multiple guide plates 304b. The number of recognition cameras 407 is one-third of the number of sorting trough plates 503, and the recognition range of the recognition cameras 407 covers the corresponding channels formed by the three guide plates 304b. The corresponding design of photoelectric sensors 403, sorting trough plates 503, and guide channels can realize accurate positioning and detection of corn conveying, ensuring that each sorting unit can be triggered to work independently. The configuration of the number of recognition cameras 407 effectively controls the equipment cost while ensuring the recognition coverage. Its design covering three channels not only meets the recognition accuracy requirements, but also avoids the control complexity caused by too many cameras.

[0052] The operation process of this embodiment is as follows: When corn needs to be sorted, after being adjusted in orientation, the corn is discharged from the vibrating trough 204 and enters the channel formed by the guide plates 304b of the guide 304. The corn falls smoothly onto the conveying surface of the conveyor 302 along the guide channel and moves towards the sorting component 500 with the conveyor 302. When the corn moves to the corresponding channel, the photoelectric sensor 403 first detects the corn signal and transmits it to the main control box 700. The main control box 700 triggers the recognition camera 407 corresponding to that channel to work. The recognition camera 407 quickly captures an image of the corn's appearance and transmits the data back. The analysis system built into the main control box 700 processes the image, completes the judgment of the corn's quality grade, and generates a sorting instruction. The main control box 700 then moves the corn to the sorting trough. The dual-stroke electric cylinder 507 at the bottom of plate 503 sends a command. The dual-stroke electric cylinder 507 adjusts its stroke according to the recognition result, pushing the sorting trough plate 503 to rotate around the first fixed axis 502 to the corresponding angle. The highest grade corn triggers the small stroke action of the dual-stroke electric cylinder 507, the sorting trough plate 503 rotates at a small angle, and the corn crosses the third partition 604 and falls into the innermost area of ​​the outer chamber 601; the medium grade corn triggers the medium stroke action of the dual-stroke electric cylinder 507, the sorting trough plate 503 rotates at a moderate angle, and the corn crosses the second partition 603 and falls into the middle area; the lowest grade corn triggers the maximum stroke action of the dual-stroke electric cylinder 507, the sorting trough plate 503 rotates at the maximum angle, and the corn crosses the first partition 602 and falls into the outermost area, completing the automated sorting.

[0053] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A corn sorting device based on machine vision, comprising a main frame (800) and a storage assembly (100), characterized in that: The storage assembly (100) includes a support (101), a storage bin (102) is installed on the top of the support (101), and a vibration evacuation and attitude adjustment assembly (200) for adjusting the attitude of corn is provided inside the support (101). The main frame (800) is equipped with a conveying assembly (300) for conveying corn, a sorting assembly (500) for screening corn, and a discharge bin (600) for discharging corn. The top of the main frame (800) is equipped with an image recognition assembly (400) for identifying corn. The main frame (800) is equipped with a central control box (700). The vibration evacuation and attitude adjustment assembly (200) includes a first base frame (201) located inside the support (101). A mounting frame (202) is fixed to the top of the first base frame (201). A vibration groove (204) is installed on the top of the mounting frame (202). A sieve plate (205) is fixed inside the vibration groove (204). A plurality of parallel attitude adjustment plates (206) are fixed to the top of the sieve plate (205). The end of the attitude adjustment plate (206) facing the storage bin (102) is wedge-shaped. Vibration motors (203) are installed on both sides of the mounting frame (202). The image recognition component (400) includes a mounting bracket (401) fixed to the top of the main frame (800). A lower crossbar (402) and an upper crossbar (404) are fixed inside the mounting bracket (401). Multiple photoelectric sensors (403) are installed at the bottom of the lower crossbar (402), and multiple recognition cameras (407) are installed on the outside of the upper crossbar (404). The sorting assembly (500) includes a third fixed seat (501) fixed to both sides of the second base frame (301), a first fixed shaft (502) fixed between the two third fixed seats (501), a plurality of sorting slot plates (503) rotatably connected to the outside of the first fixed shaft (502), a horizontal plate (504) fixed inside the second base frame (301), two fourth fixed seats (505) fixed to the bottom of the horizontal plate (504), a second fixed shaft (506) fixed between the two fourth fixed seats (505), and a double-stroke electric cylinder (507) installed between the second fixed shaft (506) and the bottom of the corresponding sorting slot plate (503).

2. The corn sorting device based on machine vision according to claim 1, characterized in that, The conveying assembly (300) includes a second base frame (301) fixed inside the main frame (800), a conveyor (302) is mounted on the top of the second base frame (301), two first fixed seats (303) are fixed on the top of the second base frame (301), a guide (304) for guiding corn is fixed between the two first fixed seats (303), and the guide (304) is located above the conveyor (302).

3. The corn sorting device based on machine vision according to claim 1, characterized in that, The discharge bin (600) includes an outer bin body (601) fixed inside the main frame (800). The outer bin body (601) has a first partition (602), a second partition (603) and a third partition (604) fixed inside it in sequence. The heights of the first partition (602), the second partition (603) and the third partition (604) decrease in sequence. The heights of the first partition (602), the second partition (603) and the third partition (604) correspond to the strokes of the double-stroke electric cylinder (507).

4. The corn sorting device based on machine vision according to claim 1, characterized in that, The portion of the sieve plate (205) located below the discharge port of the storage bin (102) is a flat material distribution area, and the portion of the sieve plate (205) with sieve holes is a straight groove area, and the attitude adjustment plate (206) is installed in the straight groove area.

5. A corn sorting device based on machine vision according to claim 1, characterized in that, The bottom of the vibration trough (204) is fixedly connected to a slag discharge hopper (207) that communicates with the vibration trough (204). The inside of the first base frame (201) is fixedly connected to a slag receiving box (208), and the slag receiving box (208) is located below the outlet of the slag discharge hopper (207).

6. A corn sorting device based on machine vision according to claim 2, characterized in that, The flow guide (304) includes multiple parallel flow guide plates (304b), and the channel formed by the multiple flow guide plates (304b) corresponds to the channel formed by the multiple attitude adjustment plates (206) and the multiple sorting slot plates (503). The bottom of the multiple flow guide plates (304b) is fixedly connected to a base plate (304a).

7. The corn sorting device based on machine vision according to claim 1, characterized in that, The top of the second base frame (301) is fixed with two second fixing seats (305), and a comb-shaped baffle (306) is fixed between the two second fixing seats (305), and the guide plate (304b) is fixed to the top of the baffle (306).

8. The corn sorting device based on machine vision according to claim 1, characterized in that, The mounting bracket (401) is fixed to the outside of a protective cover (408), the top of the protective cover (408) is provided with an inspection port (408a), and the top of the protective cover (408) is equipped with an inspection cover (408b) for sealing the inspection port (408a).

9. A corn sorting device based on machine vision according to claim 1, characterized in that, The number of photoelectric sensors (403) is consistent with the number of sorting slot plates (503), and the photoelectric sensors (403) correspond to the channels formed by multiple guide plates (304b). The number of recognition cameras (407) is one-third of the number of sorting slot plates (503), and the recognition range of the recognition cameras (407) covers the channel formed by the corresponding three guide plates (304b).

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