Wheat drenching, elutriating and magnetic separating device based on machine vision

Abstract

The application discloses a wheat immersion elutriation magnetic separation device based on machine vision and belongs to the field of screening devices, which is used for screening ferrous impurities and comprises a rack, a frame body bearing seat, a supporting roller, a conveying belt with limiting convex strips, a distributing cylinder with a stirring shaft and distributing blades arranged at one end of the conveying belt, a shaft body transmission wheel arranged on the stirring shaft, and an external power device connected with the stirring shaft through the shaft body transmission wheel; a gap for the wheat to pass through is left between the bottom end of the distributing cylinder and the top end of the conveying belt; the distributing cylinder is arranged on a cylinder adjusting frame which is arranged on the rack; at least two magnetic separation adjusting frames are further arranged on the rack, magnetic blocks are arranged on the magnetic separation adjusting frames, and the magnetic blocks are located above the conveying belt; toothed plate bodies are arranged between the cylinder adjusting frame and the magnetic separation adjusting frames and between adjacent magnetic separation adjusting frames; and image acquisition devices are further arranged on the magnetic separation adjusting frames.

Description

Technical Field

[0001] This application belongs to the field of screening devices, and more specifically, relates to a machine vision-based wheat soaking, washing, and magnetic separation device. Background Technology

[0002] Before flour processing, impurities in the wheat need to be removed, such as iron impurities. After removing iron and other impurities, the wheat is soaked and washed to remove lighter impurities such as bran. For removing iron impurities before soaking and washing, manual cleaning is commonly used. However, manual sensory screening of impurities in wheat has several drawbacks, including susceptibility to external environmental factors and the individual's experience, a lack of standardized objective measurements, low efficiency, and a large workload. To address this issue, Chinese patent publication CN108465644A discloses an artificial intelligence wheat quality inspection robot and its inspection method, specifically outlining the following technical solution: The robot includes an AI wheat quality inspection robot body and a system server. The robot body comprises a housing with an inlet and an outlet. Inside the housing are a feeding mechanism, a conveying mechanism, a double-sided machine vision mechanism, and a sorting mechanism. The inlet is connected to the feeding mechanism, which is also connected to the conveying mechanism. The conveying mechanism passes through the double-sided machine vision mechanism and is connected to the outlet. The sorting mechanism is located behind the double-sided machine vision mechanism and is connected to the system server. The feeding mechanism employs a sensor-based intelligent control system. Utilizing this existing technology, the detection of imperfect wheat grains and impurities can be achieved, solving the global challenge of rapid detection of imperfect wheat grains.

[0003] In other words, in the existing technology, it is possible to detect imperfect grains and impurities in wheat through image acquisition and machine vision solutions, and then remotely determine the screening effect of wheat impurities. However, the above screening effect is only the judgment result, and it still requires the cooperation of the iron impurity screening structure in the early stage. The structure and working process of iron impurities have a great influence on the screening result. Summary of the Invention

[0004] The purpose of this application is to provide a machine vision-based wheat soaking and washing magnetic separation device, which can achieve magnetic separation of iron impurities in wheat raw materials, improve magnetic separation efficiency and quality, and enable remote monitoring when combined with an image acquisition device.

[0005] To achieve the above objectives, this application employs the following technical solution:

[0006] The machine vision-based wheat soaking, washing, and magnetic separation device described in this application includes a frame, a frame bearing seat on the frame, support rollers on the frame bearing seat, a conveyor belt on the support rollers, limit strips on the edge of the conveyor belt, a feeding cylinder at one end of the conveyor belt, a stirring shaft coaxially arranged inside the feeding cylinder, a plurality of feeding blades distributed circumferentially on the stirring shaft, a shaft drive wheel at the top of the stirring shaft, and the stirring shaft connected to an external power device through the shaft drive wheel; a gap is left between the bottom end of the feeding cylinder and the top end of the conveyor belt for wheat to pass through; the feeding cylinder is arranged on a cylinder adjustment frame, which is located on the frame; at least two magnetic separation adjustment frames are also arranged on the frame, each magnetic separation adjustment frame is equipped with a magnetic block located above the conveyor belt; toothed plates are arranged between the cylinder adjustment frame and the magnetic separation adjustment frames, and between adjacent magnetic separation adjustment frames; an image acquisition device is also arranged on the magnetic separation adjustment frame.

[0007] As one of the preferred technical solutions of this application, the fabric cylinder is fixedly provided with adjustment blocks on both sides facing the cylinder adjustment frame. The adjustment blocks slide inside the cylinder adjustment frame, and a cylinder lifting device is provided at the position between the adjustment blocks and the frame. The bottom end of the cylinder lifting device is fixed on the frame, and the telescopic end of the cylinder lifting device is connected to the adjustment blocks.

[0008] As one of the preferred technical solutions of this application, the cylindrical adjustment frame is provided with guide grooves extending along the height direction on both sides. A guide shaft even slides in the guide groove. One end of the guide shaft is connected to the adjustment block, and the other end of the guide shaft is provided with a synchronous rack. The synchronous rack meshes with a synchronous gear. The synchronous gears on both sides of the cylindrical adjustment frame are connected by a synchronous rod.

[0009] As one of the preferred technical solutions of this application, the cylinder adjustment frame is provided with a frame limiting plate on the side of the synchronous rack away from the synchronous gear.

[0010] As one of the preferred technical solutions of this application, the toothed plate is rotatably connected to the motor fixing frame A at both ends via the toothed plate connecting shaft. The two ends of the motor fixing frame A are respectively connected to the cylinder adjustment frame and the magnetic separation adjustment frame. An adjustment motor is provided on the motor fixing frame A, and the output shaft of the adjustment motor is connected to the toothed plate connecting shaft via a coupling. The toothed position of the toothed plate is located above the end face of the conveyor belt.

[0011] As one of the preferred technical solutions of this application, the magnetic separation adjustment frame is provided with a magnetic block lifting driver inside. The magnetic block lifting driver is located on both sides of the conveyor belt. The telescopic end of the magnetic block lifting driver is connected to a magnetic block mounting plate. One end of the magnetic block mounting rod is provided on the magnetic block mounting plate. The other end of the magnetic block mounting rod is connected to a magnetic block. The magnetic block is located above the conveyor belt, and the length of the magnetic block is the same as the width of the conveyor belt.

[0012] As one of the preferred technical solutions of this application, a motor fixing frame B is provided between adjacent magnetic separation adjustment frames. A toothed plate connecting shaft is rotatably mounted on the motor fixing frame B. The toothed plate connecting shaft is connected to the toothed plate body. The toothed position of the toothed plate body is located above the end face of the conveyor belt. An adjustment motor is provided on the motor fixing frame B and connected to the toothed plate connecting shaft through a coupling.

[0013] Compared with the prior art, the beneficial effects of this application are:

[0014] This application involves spreading wheat on a conveyor belt, followed by screening using toothed plates and coordination with subsequent magnetic separation devices to adsorb iron impurities. Multiple magnetic separation devices are used for multi-stage screening to ensure quality. Furthermore, an image acquisition device is employed for remote image acquisition, enabling remote quality monitoring of the magnetically separated wheat on the conveyor belt. Attached Figure Description

[0015] Figure 1 This is the three-dimensional representation of the present application. Figure 1 .

[0016] Figure 2 yes Figure 1 A magnified view of part I in the middle.

[0017] Figure 3 yes Figure 1 A magnified view of part II.

[0018] Figure 4 This is the three-dimensional representation of the present application. Figure 2 .

[0019] In the diagram: 1. Frame; 2. Drive sprocket; 3. Support roller; 4. Limiting convex strip; 5. Conveyor belt; 6. Motor mounting base; 7. Fabric cylinder; 8. Fabric blades; 9. Agitator shaft; 10. Shaft drive wheel; 11. Cylinder adjustment frame; 12. Synchronizing rod; 13. Synchronizing gear; 14. Synchronizing rack; 15. Guide shaft; 16. Guide groove; 17. Adjusting block; 18. Motor mounting bracket A; 19. Adjusting motor; 20. Toothed plate; 21. Toothed plate connecting shaft; 22. Magnetic separation adjustment frame; 23. Magnetic block mounting plate; 24. Magnetic block mounting rod; 25. Magnetic block; 26. Magnetic block lifting driver; 27. Image acquisition device; 28. Frame bearing seat; 29. ​​Frame limiting plate; 30. Motor mounting bracket B. Detailed Implementation

[0020] The technical solutions described in this application will be further described below with reference to the accompanying drawings and embodiments.

[0021] See Figures 1 to 4 A machine vision-based wheat soaking, washing, and magnetic separation device includes a frame 1. The frame 1 is connected to a support roller 3 via a frame bearing seat 28. The support roller 3 is connected to a conveyor belt 5. Limiting protrusions 4 are provided on both sides of the conveyor belt 5. A cylinder adjustment frame 11 is also provided on the frame 1. The cylinder adjustment frame 11 is an inverted U-shaped frame. A feeding cylinder 7 is provided in the space formed by the cylinder adjustment frame 11. A stirring shaft 9 is also coaxially provided on the feeding cylinder 7. Feeding blades 8 are provided on the stirring shaft 9 at a position inside the feeding cylinder 7. The feeding blades 8 are distributed around the central axis of the stirring shaft 9. The stirring shaft 9 is connected to the feeding cylinder 7 via a support frame. A shaft drive wheel 10 is provided at the position of the stirring shaft 9 extending out of the top of the feeding cylinder 7. The stirring shaft 9 is connected to an external power device via the shaft drive wheel 10. The external power device is located on a motor mounting seat 6. The motor mounting seat 6 is connected to the cylinder adjustment frame 11.

[0022] Adjusting blocks 17 are fixedly installed at both ends of the fabric cylinder 7. The adjusting blocks 17 extend into the interior of the cylinder adjustment frame 11 and slide along the vertical position of the cylinder adjustment frame 11. A guide shaft 15 is provided at the end of the adjusting block 17. The guide shaft 15 extends into the guide groove 16. The guide groove 16 extends along the length direction of the vertical position of the cylinder adjustment frame 11. A synchronous rack 14 is provided at the end of the guide shaft 15 that extends out of the cylinder adjustment frame 11. The synchronous rack 14 meshes with the synchronous gear 13 for transmission. A synchronous rod 12 is provided between adjacent synchronous gears 13 on the cylinder adjustment frame 11. A cylinder lifting device is provided at the position between the adjusting block 17 and the frame 1. The bottom end of the cylinder lifting device is fixed to the frame 1. The telescopic end of the cylinder lifting device is connected to the adjusting block 17.

[0023] Sufficient clearance is provided between the bottom end of the cloth cylinder 7 and the top end of the conveyor belt 5 for the wheat to pass through after spreading. The bottom end of the cloth cylinder 7 is lower than the top ends of the limiting protrusions 4 on both sides of the conveyor belt 5. The frame 1 is also equipped with one or more magnetic separation adjustment frames 22. The magnetic separation adjustment frames 22 are the same as the cylinder adjustment frame 11, also being inverted U-shaped structures. A magnetic block mounting plate 23 is provided inside the magnetic separation adjustment frame 22. The magnetic block mounting plate 23 is arranged parallel to the conveyor belt 5. A magnetic block mounting rod 24 is provided on the magnetic block mounting plate 23. One end of the magnetic block mounting rod 24 is connected to a magnetic block 25. The length of the magnetic block 25 is the same as the width direction of the conveyor belt 5. The two ends of the magnetic block mounting plate 23 are located inside the vertical position of the magnetic separation adjustment frame 22 and slide relative to the magnetic separation adjustment frame 22; a magnetic block lifting driver 26 is provided between the magnetic block mounting plate 23 and the frame 1, the bottom end of the magnetic block lifting driver 26 is connected to the frame 1, and the top end of the magnetic block lifting driver 26 is connected to the magnetic block mounting plate 23.

[0024] The cylinder adjustment frame 11 is also provided with a frame limiting plate 29 for limiting the synchronous rack 14. The frame limiting plate 29 is located on the side of the synchronous rack 14 away from the synchronous gear 13.

[0025] A motor mounting bracket A18 is provided between the cylinder adjustment frame 11 and the magnetic separation adjustment frame 22. A toothed plate connecting shaft 21 is rotatably connected between the motor mounting brackets A18. A toothed plate body 20 is provided on the toothed plate connecting shaft 21. The toothed plate body 20 is located at the end face of the conveyor belt 5 in contact with or with the conveyor belt 5, leaving a gap for the wheat to pass through after spreading. The toothed plate connecting shaft 21 is connected to the adjustment motor 19 through a coupling. The adjustment motor 19 is located on the motor mounting bracket A18.

[0026] The magnetic separation adjustment frame 22 is also equipped with an image acquisition device 27, which is used to acquire images of the wheat after magnetic separation on the conveyor belt 5 so as to remotely monitor the quality of wheat magnetic separation.

[0027] A motor fixing frame B30 is provided between adjacent magnetic separation adjustment frames 22. A toothed plate connecting shaft 21 is rotatably mounted on the motor fixing frame B30. A toothed plate body 20 is provided on the toothed plate connecting shaft 21. The toothed part of the toothed plate body 20 contacts the conveyor belt 5 or leaves a gap between it and the conveyor belt 5 for the wheat to pass through after spreading.

[0028] Based on the above embodiments, the following paragraphs will continue to describe in detail the technical features involved and the functions and roles of these technical features in this technical solution, so as to help those skilled in the art to fully understand the technical solution and reproduce it.

[0029] In this application, the frame 1 is used to support and connect the transmission sprocket 2, and to connect with the cylinder adjustment frame 11 and the magnetic separation adjustment frame 22, serving as an overall support frame.

[0030] In this application, the frame bearing seat 28 is mounted on the frame 1. The frame bearing seats 28 are arranged in pairs, and a support roller 3 is rotatably arranged between the pairs of frame bearing seats 28. The support roller 3 is distributed along the length direction of the frame 1.

[0031] In this application, the support rollers 3 are distributed along the length of the frame 1 and are used to support and move the conveyor belt 5.

[0032] In this application, the limiting protrusion 4 is a strip-shaped protrusion disposed on the edge of the conveyor belt 5 and protruding from the end face of the conveyor belt 5, and the limiting protrusion 4 is distributed along the movement path of the conveyor belt 5.

[0033] In this application, the conveyor belt 5 is used to transport and magnetically separate the wheat after it has been spread.

[0034] In this application, the motor mounting base 6 is used to install the drive motor, and the output shaft of the drive motor is provided with a drive wheel. The drive wheel is connected to the shaft transmission wheel 10 through a transmission structure, which is a transmission belt.

[0035] In this application, the cloth cylinder 7 is located above the conveyor belt 5. The cloth cylinder 7 is a hollow cylinder. The bottom opening of the cloth cylinder 7 is located above the end face of the conveyor belt 5, with a sufficient gap between them for spreading wheat. The bottom opening of the cloth cylinder 7 is located below the top of the limiting protrusion 4 and should not be higher than the top of the limiting protrusion 4.

[0036] In this application, the cloth blades 8 are coaxially arranged with the cloth cylinder 7, and the cloth blades 8 are used to spread the wheat in the cloth cylinder 7 by following the movement of the stirring shaft 9.

[0037] In this application, the stirring shaft 9 is coaxially arranged with the cloth cylinder 7, the top end of the stirring shaft 9 is connected to the shaft transmission wheel 10, the stirring shaft 9 is connected to the cloth cylinder 7 through a support frame, and a bearing structure is provided at the connection position between the stirring shaft 9 and the support frame.

[0038] In this application, the cylindrical adjustment frame 11 is an inverted U-shaped frame. The bottom two ends of the cylindrical adjustment frame 11 are respectively connected to the frame 1 at the corresponding positions. It includes a horizontal position spanning above the conveyor belt 5 and a vertical position located on both sides of the conveyor belt 5.

[0039] In this application, the synchronizing rod 12 is located at the horizontal position at the top of the cylinder adjustment frame 11, and its two ends are used to connect with the synchronizing gear 13 on the cylinder adjustment frame 11.

[0040] In this application, the synchronous gear 13 is used to realize the meshing transmission with the synchronous racks 14 on both sides of the cylinder adjustment frame 11. The synchronous gear 13 cooperates with the synchronous rod 12 to realize the synchronous movement of the synchronous racks 14 on both sides of the cylinder adjustment frame 11.

[0041] In this application, the bottom end of the synchronous rack 14 is connected to the guide shaft 15, and a tooth structure is provided on one side of the top end of the synchronous rack 14. The synchronous rack 14 slides against the frame limiting plate 29 on the end face away from the synchronous gear 13. That is, under the limiting action of the synchronous gear 13 and the frame limiting plate 29, the synchronous rack 14 can move stably relative to the vertical position of the cylinder adjustment frame 11.

[0042] In this application, the guide shaft 15 is located in the guide groove 16 and can move together with the adjustment block 17. The function of the guide shaft 15 is to drive the synchronous rack 14 and to limit the adjustment block 17 by sliding relative to the guide groove 16.

[0043] In this application, the guide groove 16 is located in the vertical position of the cylinder adjustment frame 11 and extends along the length direction of the vertical position of the guide groove 16. The guide groove 16 is a strip-shaped through hole.

[0044] In this application, the adjustment block 17 is a guide and support block connected to the outer wall of the fabric cylinder 7. The adjustment block 17 extends into the interior of the cylinder adjustment frame 11 in the vertical position. The cross-section of the cylinder adjustment frame 11 in the vertical position is a U-shaped structure.

[0045] In this application, a cylinder lifting device is provided at the position between the adjusting block 17 and the frame 1. The cylinder lifting device is an electric push rod, a pneumatic cylinder, or a hydraulic cylinder, which has a telescopic end and a bottom end. The bottom end of the cylinder lifting device is connected to the frame 1, and the telescopic end of the cylinder lifting device is connected to the adjusting block 17, so as to realize the lifting and lowering of the adjusting block 17 relative to the frame 1, thereby realizing the height adjustment of the cloth cylinder 7 relative to the end face of the conveyor belt 5.

[0046] In this application, the motor fixing frame A18 is connected to the cylinder adjustment frame 11 and the magnetic separation adjustment frame 22 at both ends, respectively. The motor fixing frames A18 on both sides of the conveyor belt 5 are rotatably connected to the toothed plate connecting shaft 21. The toothed plate connecting shaft 21 is provided with a toothed plate body 20. The bottom end of the toothed plate body 20 can overlap with the end face of the conveyor belt 5 under initial conditions, or leave a gap between it and the end face of the conveyor belt 5 smaller than the gap between the bottom surface of the cloth cylinder 7 and the top surface of the conveyor belt 5.

[0047] In this application, the end of the toothed plate connecting shaft 21 is connected to an adjusting motor 19 via a coupling. The adjusting motor 19 is fixed on the motor mounting bracket A18. The adjusting motor 19 can drive the toothed plate connecting shaft 21 to rotate, thereby temporarily separating the bottom toothed part of the toothed plate body 20 from the conveyor belt 5, and also ensuring the fit between the bottom of the toothed plate body 20 and the conveyor belt 5.

[0048] In this application, the magnetic separation adjustment frame 22 is an inverted U-shaped structure frame, and its structure is the same as that of the cylinder adjustment frame 11.

[0049] In this application, the magnetic separation adjustment frame 22 is provided with a magnetic block 25 inside. The magnetic block 25 is arranged parallel to the conveyor belt 5, and the length of the magnetic block 25 is the same as the width of the conveyor belt 5. There is a sufficient distance between the magnetic block 25 and the conveyor belt 5, and this distance is sufficient for the magnetic field of the magnetic block 25 to adsorb iron impurities.

[0050] In this application, magnetic block 25 is provided with magnetic block mounting rods 24 at both ends, and the magnetic block mounting rods 24 are also connected to the magnetic block mounting plate 23. The magnetic block mounting rods 24 are provided with threaded fastening nuts, and the magnetic block mounting rods 24 are connected to the magnetic block mounting plate 23 through the fastening nuts.

[0051] In this application, the two sides of the magnetic block mounting plate 23 extend into the interior of the vertical position of the magnetic separation adjustment frame 22, and the cross-section of the vertical position of the magnetic separation adjustment frame 22 is a U-shaped structure.

[0052] In this application, a magnetic block lifting driver 26 is also provided at the position between the two ends of the magnetic block mounting plate 23 and the frame 1. The magnetic block lifting driver 26 is an electric push rod, a pneumatic cylinder, or a hydraulic cylinder.

[0053] In this application, the magnetic block mounting plate 23 is provided with protrusions at both ends for connecting with the vertical strip-shaped through holes of the magnetic separation adjustment frame 22.

[0054] In this application, there are multiple magnetic separation adjustment frames 22, and a motor fixing frame B30 is provided between adjacent magnetic separation adjustment frames 22. The two ends of the motor fixing frame B30 are respectively connected to the magnetic separation adjustment frame 22 at corresponding positions. A toothed plate connecting shaft 21 is rotatably connected to the motor fixing frame B30. A toothed plate body 20 is provided on the toothed plate connecting shaft 21. An adjusting motor 19 is connected to the toothed plate connecting shaft 21 through a coupling. The adjusting motor 19 is located on the motor fixing frame B30.

[0055] In this application, the magnetic separation adjustment frame 22 is also provided with an image acquisition device 27 for image or video acquisition.

[0056] In the process of using this application, the wheat to be screened is placed in the cloth cylinder 7. Under the action of the external power device, the power is transmitted to the shaft drive wheel 10. The shaft drive wheel 10 can drive the stirring shaft 9 to rotate. The stirring shaft 9 drives the cloth blades 8 to start rotating. The cloth blades 8 can spread the wheat in the cloth cylinder 7 between the conveyor belt 5 and the bottom surface of the cloth cylinder 7. Since the conveyor belt 5 is conveyed forward, the spread wheat can follow the conveyor belt 5 to move in the direction of the magnetic separation adjustment frame 22.

[0057] As the spread wheat moves towards the magnetic separation adjustment frame 22, it first passes through the toothed portion of the toothed plate 20, which creates grooves on the spread wheat. After passing through the toothed plate 20, the wheat passes through the magnetic block 25, which is a neodymium magnet and has a strong attraction to ferrous materials. The wheat, after the initial magnetic separation, passes through the toothed plate 20 again to redistribute the grooves, and then is conveyed to the secondary magnetic separation device by the conveyor belt 5. The secondary magnetic separation device can screen and adsorb most of the ferrous impurities in the wheat. Furthermore, an image acquisition device 27 is installed at each stage of the magnetic separation adjustment frame 22 or at the final stage of the magnetic separation adjustment frame 22. The image acquisition device 27 can acquire images of the wheat on the conveyor belt 5, so as to perform quality inspection on the wheat after screening for ferrous impurities using existing artificial intelligence wheat quality inspection robots and quality inspection methods.

[0058] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A machine vision-based wheat soaking, washing, and magnetic separation device, comprising a frame (1), wherein a frame bearing seat (28) is provided on the frame (1), and support rollers (3) are respectively provided on the frame bearing seat (28), and a conveyor belt (5) is provided on the support rollers (3), characterized in that, Limiting strips (4) are provided at the edge of the conveyor belt (5). A cloth cylinder (7) is provided at one end of the conveyor belt (5). A stirring shaft (9) is coaxially arranged inside the cloth cylinder (7). Several cloth blades (8) are distributed circumferentially on the stirring shaft (9). A shaft drive wheel (10) is provided at the top of the stirring shaft (9). The stirring shaft (9) is connected to an external power device through the shaft drive wheel (10). A gap is left between the bottom end of the cloth cylinder (7) and the top end of the conveyor belt (5) for wheat to pass through. The cylinder (7) is set on the cylinder adjustment frame (11), which is located on the frame (1); at least two magnetic separation adjustment frames (22) are also set on the frame (1), and magnetic blocks (25) are set on the magnetic separation adjustment frames (22), which are located above the conveyor belt (5); toothed plates (20) are set between the cylinder adjustment frame (11) and the magnetic separation adjustment frames (22) and between adjacent magnetic separation adjustment frames (22); an image acquisition device (27) is also set on the magnetic separation adjustment frame (22).

2. The machine vision-based wheat soaking, washing, and magnetic separation device according to claim 1, characterized in that, Adjustment blocks (17) are fixedly installed on both sides of the fabric cylinder (7) facing the cylinder adjustment frame (11). The adjustment blocks (17) slide inside the cylinder adjustment frame (11). A cylinder lifting device is installed at the position between the adjustment block (17) and the frame (1). The bottom end of the cylinder lifting device is fixed on the frame (1), and the telescopic end of the cylinder lifting device is connected to the adjustment block (17).

3. The machine vision-based wheat soaking, washing, and magnetic separation device according to claim 2, characterized in that, The cylindrical adjustment frame (11) has guide grooves (16) extending along the height direction on both sides. A guide shaft (15) slides in the guide groove (16). One end of the guide shaft (15) is connected to the adjustment block (17), and the other end of the guide shaft (15) is provided with a synchronous rack (14). The synchronous rack (14) meshes with the synchronous gear (13). The synchronous gears (13) on both sides of the cylindrical adjustment frame (11) are connected by a synchronous rod (12).

4. The machine vision-based wheat soaking, washing, and magnetic separation device according to claim 3, characterized in that, The cylinder adjustment frame (11) has a frame limiting plate (29) on the side of the synchronous rack (14) away from the synchronous gear (13).

5. The machine vision-based wheat soaking, washing, and magnetic separation device according to claim 1, characterized in that, The toothed plate (20) is rotatably connected to the motor mounting brackets A (18) at both ends via the toothed plate connecting shaft (21). The two ends of the motor mounting brackets A (18) are respectively connected to the cylinder adjustment bracket (11) and the magnetic separation adjustment bracket (22). An adjustment motor (19) is provided on the motor mounting brackets A (18). The output shaft of the adjustment motor (19) is connected to the toothed plate connecting shaft (21) via a coupling. The toothed position of the toothed plate (20) is located above the end face of the conveyor belt (5).

6. The machine vision-based wheat soaking, washing, and magnetic separation device according to claim 1, characterized in that, The magnetic separation adjustment frame (22) is equipped with a magnetic block lifting driver (26) inside. The magnetic block lifting driver (26) is located on both sides of the conveyor belt (5). The telescopic end of the magnetic block lifting driver (26) is connected to a magnetic block mounting plate (23). One end of the magnetic block mounting rod (24) is provided on the magnetic block mounting plate (23). The other end of the magnetic block mounting rod (24) is connected to a magnetic block (25). The magnetic block (25) is located above the conveyor belt (5). The length of the magnetic block (25) is the same as the width of the conveyor belt (5).

7. The machine vision-based wheat soaking, washing, and magnetic separation device according to claim 1, characterized in that, A motor mounting frame B (30) is provided between adjacent magnetic separation adjustment frames (22). A toothed plate connecting shaft (21) is rotatably mounted on the motor mounting frame B (30). The toothed plate connecting shaft (21) is connected to the toothed plate body (20). The toothed position of the toothed plate body (20) is located above the end face of the conveyor belt (5). An adjustment motor (19) is provided on the motor mounting frame B (30) and connected to the toothed plate connecting shaft (21) through a coupling.

Images