Machine vision based off-tracking belt conveyor

Abstract

The application discloses a machine vision-based deviation-preventing belt conveyor and relates to the technical field of conveying equipment.The deviation-preventing belt conveyor comprises a fixing frame, a supporting plate and a baffle fixed to the upper surface of the fixing frame, one end of the baffle is fixed to the inside of the baffle, the lower surface of the baffle is fixed with a supporting rod, the side surface of the supporting rod is provided with an adjusting assembly, the side surface of the fixing frame is provided with a transmission assembly, and the transmission assembly is movably arranged on the side surface of the fixing frame through the adjusting assembly.The visual detection assembly is used for monitoring the conveying belt in real time, the deviation direction and distance are accurately calculated, the deviation is corrected in time, the electric push rod in the deviation-correcting roller drives the push rod to move, the push rod moves in the inclined groove to push the jack rod to move upwards, the jack rod pushes the guide block fixed to the upper end of the jack rod to synchronously move, the deviation is corrected in time through the inwardly-inclined guide block, and the drum, the supporting roller and other components are prevented from being excessively abraded and damaged.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, specifically to a machine vision-based anti-deviation belt conveyor. Background Technology

[0002] Belt conveyors are widely used in the coal mining industry due to their unique advantages. However, belt misalignment is a common problem during operation. Belt misalignment increases the axial force on the drums and idlers, causing drum shaft misalignment and idler bearing damage. Furthermore, belt misalignment causes material to spill onto the return belt, leading to abnormal wear between the belt and drums and shortening their service life. Additionally, abnormal friction between the misaligned belt and the support during operation causes edge wear, affecting its lifespan. Severe belt misalignment can cause material to roll up on the belt, resulting in the force on one side exceeding the belt's longitudinal breaking strength, leading to safety hazards such as transverse belt tearing. Material spillage and cleanup often cause coal dust, polluting the environment. Simultaneously, material spillage also affects the quality of the conveyed goods.

[0003] Therefore, it is evident that in actual operation, belt misalignment not only causes significant damage to the conveyor itself, but also poses safety hazards, affects production efficiency, and impacts the quality of transported goods. Consequently, we propose a machine vision-based anti-misalignment belt conveyor to address these issues. Summary of the Invention

[0004] This invention aims to overcome the shortcomings of existing technologies by proposing a machine vision-based anti-deviation belt conveyor, which solves the problem of conveyor damage caused by belt deviation, affecting production efficiency and the quality of transported goods.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a machine vision-based anti-deviation belt conveyor, comprising a fixed frame, a support plate, and a baffle fixed to the upper surface of the fixed frame, the other end of the baffle being fixed inside the baffle, a support rod being fixed to the lower surface of the baffle, an adjustment component being provided on the side of the support rod, a transmission component being provided on the side of the fixed frame, and the transmission component being movable on the side of the fixed frame through the adjustment component; The transmission assembly includes a correction roller and a moving roller. Two correction rollers are symmetrically arranged, and the ends of the two correction rollers that are close to each other are fixed. Inclined guide blocks for guidance are movably arranged on the surface of the correction roller. A conveyor belt is arranged on the side of the fixed frame. The correction roller and the moving roller are connected by the conveyor belt.

[0006] Furthermore, the correction roller has a movable chamber inside, an electric push rod is fixed to the inner wall of the movable chamber, a push rod is fixed to the output end of the electric push rod, a support frame is also fixed to the inner wall of the movable chamber, a top rod passes through the surface of the support frame, the upper end of the top rod is fixed to the lower surface of the guide block, the push rod has an inclined groove corresponding to the top rod on its surface, the lower end of the top rod passes through the support frame and overlaps the inner wall of the inclined groove.

[0007] Furthermore, the surface of the correction roller is provided with a through groove corresponding to the guide block, the guide block passes through the through groove, and a first spring is sleeved on the outer periphery of the top rod. The upper end of the first spring is fixed to the inner wall of the movable chamber, and the lower end of the first spring is fixed to the upper surface of the support frame. There are multiple guide blocks, top rods, and support frames, and they are evenly arranged inside the movable chamber.

[0008] Furthermore, the adjustment assembly includes a first motor fixed to the side of the support rod, a first threaded rod fixed to the output end of the first motor, the other end of the first threaded rod being rotatably connected to the side of the fixing frame, a threaded cap being threadedly connected to the surface of the first threaded rod, a first movable block being fixedly connected to the upper end of the threaded cap via a fixing rod, a first movable groove being provided on the side of the fixing frame, a through hole being provided on the surface of the first movable block, and the first movable block being engaged with the first movable groove through the through hole.

[0009] Furthermore, a connecting rod is hinged to the lower surface of the first movable block, and a second movable block is hinged to the other end of the connecting rod. A second movable groove is opened on the surface of the support plate, and the second movable block moves inside the second movable groove. One end of the correction roller rotates through the first movable block. A second motor is fixedly installed on the surface of the first movable block, and the output end of the second motor is fixed to one end of the correction roller. One end of the moving roller is rotatably connected to the side of the second movable block.

[0010] Furthermore, a placement frame is fixed to the upper surface of the fixed frame, and a visual inspection component is fixed to the lower surface of the placement frame. The visual inspection component includes an image acquisition module, an image analysis module, and a processing module.

[0011] Furthermore, it also includes a mounting plate disposed on the side of the support plate, a support roller rotatably connected to the other side of the mounting plate, a fixing assembly disposed inside the mounting plate, the mounting plate being fixed to the side of the support plate by the fixing assembly, the fixing assembly including a knob disposed on one side of the mounting plate, a second threaded rod fixed to the side of the knob, a transmission chamber being opened inside the mounting plate, one end of the second threaded rod being rotatably inserted into the transmission chamber, a threaded tube being threadedly connected to the surface of the second threaded rod, and a push block being fixed to the end face of the threaded tube.

[0012] Furthermore, the fixing component also includes a fixing block fixed to the side of the mounting plate. The surface of the fixing block is provided with a telescopic groove, which is connected to the transmission chamber. One end of the pushing block passes through the telescopic groove. A limiting rod also passes through the telescopic groove. The limiting rod is perpendicular to the pushing block, and the contact surfaces of the limiting rod and the pushing block are both inclined surfaces. A second spring is sleeved on the surface of the limiting rod.

[0013] Furthermore, the support plate has a fixing groove on its surface, the fixing block is engaged inside the fixing groove, the inner wall of the fixing groove has a limiting groove corresponding to the limiting rod, one end of the limiting rod is engaged inside the limiting groove by a pushing block, there are two sets of the limiting rod and the spring, and they are symmetrically arranged inside the telescopic groove; a slider is fixed on the side of the threaded tube, the inner wall of the transmission chamber has a sliding groove corresponding to the slider, the slider moves inside the sliding groove, there are two sliders and two sliding grooves, and they are symmetrically arranged on both sides of the threaded tube.

[0014] The machine vision-based anti-deviation belt conveyor is used as follows: First, it is placed in a designated position, and the correction roller and the moving roller are connected by the conveyor belt. Then, the first motor is controlled to drive the first threaded rod to rotate. The first threaded rod drives the threaded cap to move. The threaded cap drives the first movable block fixed at its upper end to move through the fixed rod, thereby driving the correction roller that rotates through one side of the first movable block to move synchronously. At the same time, the first movable block moves and drives the connecting rod to move, thereby driving the second movable block and the moving roller that rotates through one side of the second movable block to move synchronously. While adjusting the wrap angle of the conveyor belt, the conveyor belt is kept taut. Then, the second motor controls the correction roller to rotate, thereby driving the conveyor belt to move. During the material transport process, the conveyor belt is monitored in real time by a vision inspection component. When the vision inspection component detects a deviation in the conveyor belt, it calculates the direction and distance of the deviation by comparing images at both ends of the conveyor belt, and controls the operation of the corresponding electric push rod. The electric push rod drives the push rod to move. During the movement of the push rod, the push rod pushes the top rod to move upward through the inclined groove. The top rod pushes the guide block fixed at its upper end to move synchronously. The inwardly inclined guide block corrects the deviation of the conveyor belt.

[0015] Furthermore, the guide block has an inclination angle of 5°-15°, and the two end faces of the correction roller are fixed together and both are inclination inward by 1°-2°.

[0016] Furthermore, it also includes a main control device, and the vision detection component, the first motor, and the second motor are all electrically connected to the main control device.

[0017] Compared with existing technologies, this machine vision-based anti-deviation belt conveyor has the following advantages: I. This invention uses a visual inspection component to monitor the conveyor belt in real time, enabling accurate calculation of the direction and distance of deviation, ensuring timely correction of deviations. Simultaneously, an electric push rod inside the correction roller drives a push rod to move. During the movement of the push rod, a top rod is pushed upward through an inclined groove. The top rod pushes a guide block fixed at its upper end to move synchronously. The inwardly inclined guide block corrects deviations in a timely manner, preventing excessive wear and damage to components such as rollers and idlers. At the same time, the inclined setting of the guide block can provide continuous guiding force, ensuring that the conveyor belt is stably guided when deviating, avoiding problems such as conveyor belt deviation leading to conveyor damage, affecting production efficiency and the quality of conveyed goods.

[0018] Second, this invention adjusts the spacing between the two end correction rollers and the vertical position of the moving roller by adjusting the components, so that the belt is forcibly stretched during installation to form a uniform pretension. This makes the tension distribution more concentrated on the center line of the belt, reduces the tension difference between the two sides, and avoids asymmetrical stretching caused by single roller drive. At the same time, the moving roller, as the only support point of the belt return section, indirectly suppresses the tendency of the working section to deviate when the belt deviates laterally due to external interference. Furthermore, the correction roller and the moving roller are in the shape of an inverted triangle, and the contact wrap angle between the belt and the correction roller can reach 270°-300°, which greatly increases the effective friction and reduces the deviation caused by slippage.

[0019] Third, this invention tilts the correction roller inward by 1°-2°. After the roller surface is tilted, an asymmetrical pressure distribution is formed in the contact area between the conveyor belt and the roller surface. When the conveyor belt deviates to one side, the contact area on that side increases, resulting in a significant increase in lateral friction. The resultant force generated by the tilt angle always points towards the center line of the conveyor belt, forcing the conveyor belt to return to the center and suppressing random deviation. Furthermore, the 1°-2° tilt ensures sufficient correction force while avoiding excessive wear or jamming of the belt edge due to an excessively large angle. At the same time, when the material deviates to one side of the belt, the guide block on that side intervenes first to correct the deviation, and at the same time, the friction force on the tilted surface of the driven roller increases, forming a load-correction linkage response. The rigid limit of the guide block absorbs high-frequency vibration, and the tilt of the driven roller maintains low-frequency stability, thereby reducing deviation caused by resonance.

[0020] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the anti-deviation belt conveyor based on machine vision provided in Embodiment 1 of the present invention; Figure 2 This is a connection diagram of a partially disassembled structure provided in Embodiment 1 of the present invention; Figure 3 For the present invention Figure 2 Detailed diagram of the left end structure; Figure 4 For the present invention Figure 2 Detailed diagram of the right end structure; Figure 5 This is a side cross-sectional view of the straightening roller provided in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the top rod and push rod provided in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram showing the structural connection of the correction roller, the moving roller, and the conveyor belt provided in Embodiment 1 of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A; Figure 9 This is a connection diagram of a partially disassembled structure provided in Embodiment 2 of the present invention; Figure 10 This is a schematic diagram showing the structural connection of the correction roller, the moving roller, and the conveyor belt provided in Embodiment 2 of the present invention; Figure 11 This is a schematic diagram of the structure of the baffle and support plate provided in Embodiment 2 of the present invention; Figure 12 This is a cross-sectional view of the fixing component provided in Embodiment 2 of the present invention; Figure 13 For the present invention Figure 12 Enlarged structural diagram at point B; Figure 14 This is a control system diagram of the present invention.

[0022] In the picture: 1. Fixed frame; 101. First movable slot; 2. Baffle; 201. Support rod; 3. Support plate; 301. Second movable groove; 302. Fixed groove; 303. Limiting groove; 4. Adjustment components; 401. First motor; 402. First threaded rod; 403. Threaded cap; 404. First movable block; 405. Connecting rod; 406. Second movable block; 407. Through hole; 5. Transmission assembly; 501. Second motor; 502. Correcting roller; 5021. Movable chamber; 5022. Electric actuator; 5023. Push rod; 5024. Inclined groove; 5025. Support frame; 5026. Top rod; 5027. Guide block; 5028. First spring; 5029. Through groove; 503. Moving roller; 6. Placement rack; 7. Vision inspection assembly; 8. Conveyor belt; 9. Support rollers; 10. Mounting plate; 1001. Transmission compartment; 11. Fixing component; 1101. Knob; 1102. Second threaded rod; 1103. Threaded tube; 1104. Push block; 1105. Fixing block; 1106. Telescopic groove; 1107. Limiting rod; 1108. Second spring; 1109. Slider. Detailed Implementation

[0023] 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. Example 1

[0024] Please see Figures 1 to 14 The present invention provides the following implementation scheme: a machine vision-based anti-deviation belt conveyor, including a fixed frame 1, a support plate 3, and a baffle 2 fixed to the upper surface of the fixed frame 1. The other end of the baffle 2 is fixed inside the baffle 2. A support rod 201 is fixed to the lower surface of the baffle 2. An adjustment component 4 is provided on the side of the support rod 201. A transmission component 5 is provided on the side of the fixed frame 1, and the transmission component 5 moves along the side of the fixed frame 1 via the adjustment component 4. A placement frame 6 is fixed to the upper surface of the fixed frame 1, and a vision detection component 7 is fixed to the lower surface of the placement frame 6. The vision detection component 7 includes an image acquisition module, an image analysis module, and a processing module. The present invention monitors the conveyor belt 8 in real time through the vision detection component 7 to achieve the detection of deviation. Accurate calculation of direction and distance ensures timely correction of deviations. Simultaneously, the electric actuator 5022 inside the correction roller 502 drives the push rod 5023 to move. During the movement of the push rod 5023, it pushes the top rod 5026 upward through the inclined groove 5024. The top rod 5026 pushes the guide block 5027 fixed at its upper end to move synchronously. The inwardly inclined guide block 5027 corrects deviations in time, avoiding excessive wear and damage to components such as rollers and idlers. At the same time, the inclined setting of the guide block 5027 can provide continuous guiding force to ensure that the conveyor belt 8 is stably guided when it deviates, avoiding problems such as damage to the conveyor due to the conveyor belt 8 running off-track, which would affect production efficiency and the quality of conveyed goods.

[0025] Please refer to this carefully. Figures 2-6The transmission assembly 5 includes a correction roller 502 and a moving roller 503. Two correction rollers 502 are symmetrically arranged, with their ends fixed close to each other. Inclined guide blocks 5027 are movably arranged on the surface of each correction roller 502 for guidance. A conveyor belt 8 is provided on the side of the fixed frame 1. The correction roller 502 and the moving roller 503 are connected by the conveyor belt 8. A movable chamber 5021 is opened inside the correction roller 502. An electric push rod 5022 is fixed to the inner wall of the movable chamber 5021. A push rod 5023 is fixed to the output end of the electric push rod 5022. A support frame 5025 is also fixed to the inner wall of the movable chamber 5021. A top rod 5026 passes through the surface of the support frame 5025. The upper end of the top rod 5026... Fixed to the lower surface of the guide block 5027, the push rod 5023 has a groove 5024 corresponding to the top rod 5026 on its surface. The lower end of the top rod 5026 passes through the support frame 5025 and overlaps the inner wall of the groove 5024. The straightening roller 502 has a through groove 5029 corresponding to the guide block 5027 on its surface. The guide block 5027 passes through the through groove 5029. A first spring 5028 is sleeved on the outer periphery of the top rod 5026. The upper end of the first spring 5028 is fixed to the inner wall of the movable chamber 5021, and the lower end of the first spring 5028 is fixed to the upper surface of the support frame 5025. There are multiple guide blocks 5027, top rods 5026, and support frames 5025, which are evenly arranged inside the movable chamber 5021.

[0026] Please refer to this carefully. Figures 2-8The adjustment assembly 4 includes a first motor 401 fixed to the side of the support rod 201. A first threaded rod 402 is fixed to the output end of the first motor 401. The other end of the first threaded rod 402 is rotatably connected to the side of the fixed frame 1. A threaded cap 403 is threaded onto the surface of the first threaded rod 402. A first movable block 404 is fixedly connected to the upper end of the threaded cap 403 via a fixed rod. A first movable groove 101 is provided on the side of the fixed frame 1. A through hole 407 is provided on the surface of the first movable block 404, and the first movable block 404 is engaged with the first movable groove 101 through the through hole 407. A connecting rod 405 is hinged to the lower surface of the first movable block 404, and a second movable block 406 is hinged to the other end of the connecting rod 405. A second movable groove 301 is provided on the surface of the support plate 3, and the second movable block 406 moves within the second movable groove 301. One end of the correction roller 502 rotatably passes through the first movable block 404. A second motor 501 is fixedly mounted on the surface of the 404. The output end of the second motor 501 is fixed to one end of the correction roller 502, and one end of the moving roller 503 is rotatably connected to the side of the second movable block 406. This invention adjusts the distance between the two correction rollers 502 and the vertical position of the moving roller 503 by adjusting the component 4, so that the belt is forcibly stretched during installation to form a uniform pretension, thereby making the tension distribution more concentrated on the center line of the belt, reducing the tension difference on both sides, and avoiding asymmetrical stretching caused by single roller drive. At the same time, the moving roller 503 serves as the only support point for the belt return section. When the belt shifts laterally due to external interference, the lower roller indirectly suppresses the tendency of the working section to deviate by restricting the degree of freedom of the return section. Furthermore, the correction roller 502 and the moving roller 503 are in the shape of an inverted triangle, and the contact wrap angle between the belt and the correction roller 502 can reach 270°-300°, which greatly increases the effective friction and reduces the deviation caused by slippage.

[0027] The machine vision-based anti-deviation belt conveyor is used as follows: First, it is placed in a designated position, and the correction roller 502 and the moving roller 503 are connected by the conveyor belt 8. Then, the first motor 401 is controlled to drive the first threaded rod 402 to rotate. The first threaded rod 402 drives the threaded cap 403 to move. The threaded cap 403 drives the first movable block 404 fixed at its upper end to move through the fixed rod, thereby driving the correction roller 502, which rotates through one side of the first movable block 404, to move synchronously. At the same time, the first movable block 404 moves and drives the connecting rod 405 to move, thereby driving the second movable block 406 and the moving roller 503, which rotates through one side of the second movable block 406, to move synchronously. While adjusting the wrap angle of the conveyor belt 8, the conveyor belt 8 is kept taut. Then, the second motor 501 controls the correction roller 502 to rotate, thereby driving the conveyor belt 8 to move. During the material transport process, the visual inspection component 7 monitors the conveyor belt 8 in real time. When the visual inspection component 7 detects that the conveyor belt 8 is deviating, it calculates the direction and distance of the deviation by comparing the images at both ends of the conveyor belt 8, and controls the operation of the corresponding electric push rod 5022. The electric push rod 5022 drives the push rod 5023 to move. During the movement of the push rod 5023, the push rod 5026 is pushed upward by the inclined groove 5024. The push rod 5026 pushes the guide block 5027 fixed on its upper end to move synchronously. The inwardly inclined guide block 5027 corrects the deviation of the conveyor belt 8.

[0028] The guide block 5027 has an inclination angle of 5°-15°, and the two end faces of the correction roller 502 are both tilted inward by 1°-2°. By tilting the correction roller 502 inward by 1°-2°, the contact area between the conveyor belt 8 and the roller surface forms an asymmetrical pressure distribution. When the conveyor belt 8 deviates to one side, the contact area on that side increases, resulting in a significant increase in lateral friction. The resultant force generated by the tilt angle always points towards the center line of the conveyor belt 8, forcing the conveyor belt 8 to return to the center and suppressing random deviation. The 1°-2° tilt ensures sufficient correction force while avoiding excessive wear or jamming of the belt edge due to an excessive angle. At the same time, when the material deviates to one side of the belt, the guide block 5027 on that side intervenes first to correct the deviation, and at the same time, the friction on the tilted surface of the corresponding driven roller increases, forming a load-correction linkage response. The rigid limit of the guide block 5027 absorbs high-frequency vibration, and the tilt of the driven roller maintains low-frequency stability, thereby reducing deviation caused by resonance.

[0029] It also includes the main control equipment, and the vision inspection component 7, the first motor 401 and the second motor 501 are all electrically connected to the main control equipment.

[0030] The present invention also provides a method for detecting conveyor belt offset using a vision inspection component, comprising the following steps: Step 1, Multimodal Image Acquisition: Deploy image acquisition modules at the input and output ends of conveyor belt 8 to simultaneously acquire RGB images for detecting the edge position of conveyor belt 8, 3D point cloud data for calculating the cross-sectional deformation of conveyor belt 8, and laser contour lines for accurately measuring the lateral displacement of conveyor belt 8; at the same time, start the multispectral imaging system and automatically switch to infrared mode in dusty environments to ensure image clarity; Step 2, Dynamic calibration of conveyor belt 8 edge: The improved YOLO-PB model is used to detect the pixel coordinates of the left and right edges of the belt in real time. Semantic segmentation is performed on the RGB image to extract the region of conveyor belt 8. Combined with the laser contour data, the actual physical edge of conveyor belt 8 is fitted. At the same time, a dynamic reference center line is generated by the RANSAC algorithm. Step 3, Offset Calculation and Feature Fusion: Calculate the input offset Xr and the output offset Xc, and compensate for the lateral displacement, longitudinal fluctuation and load distribution with environmental parameters to output the final deviation coefficient; where the lateral displacement is the distance difference between the left and right edges and the baseline, the longitudinal fluctuation is the frequency of the conveyor belt 8 snake movement obtained by FFT analysis, and the load distribution is the asymmetry coefficient of the material projection area.

[0031] By employing the fusion analysis of 3D point cloud and laser contour lines, minute offsets can be captured, and parameters such as lateral displacement, longitudinal fluctuation, load distribution, and surface deformation can be monitored simultaneously. This allows for a comprehensive assessment of belt misalignment risks. Furthermore, the absence of physical contact sensors avoids frictional damage to the belt caused by traditional devices such as guide rollers and probes. Multispectral imaging (visible light + infrared) penetrates dust and water mist interference to clearly capture belt edge features. Example 2

[0032] Based on implementation 1, it also includes a mounting plate 10 set on the side of the support plate 3. The other side of the mounting plate 10 is rotatably connected to a support roller 9. A fixing component 11 is set inside the mounting plate 10. The mounting plate 10 is fixed to the side of the support plate 3 by the fixing component 11. The support roller 9 lifts the middle of the conveyor belt 8 upward, dividing the conveyor belt 8 into two shorter spans. According to the catenary principle, the belt sag Δ is proportional to the square of the span. Halving the span can reduce the sag to 1 / 4, thereby improving lateral stability and avoiding the problem of insufficient lateral stiffness and easy deviation due to lateral force interference caused by the slight sag in the middle of the conveyor belt 8 due to long span or heavy load.

[0033] Please refer to this carefully. Figure 9 , Figure 10 , Figure 11 and Figure 13The fixing component 11 includes a knob 1101 disposed on one side of the mounting plate 10. A second threaded rod 1102 is fixed to the side of the knob 1101. A transmission chamber 1001 is formed inside the mounting plate 10. One end of the second threaded rod 1102 is rotatably inserted into the transmission chamber 1001. A threaded tube 1103 is threadedly connected to the surface of the second threaded rod 1102. A push block 1104 is fixed to the end face of the threaded tube 1103. The fixing component 11 also includes a fixing block 1105 fixed to the side of the mounting plate 10. A telescopic groove 1106 is formed on the surface of the fixing block 1105. The telescopic groove 1106 is connected to the transmission chamber 1001. One end of the push block 1104 is inserted into the telescopic groove 1106. A limiting rod 1107 is also inserted into the telescopic groove 1106. The limiting rod 1107 is perpendicular to the push block 1104. The limiting rod 1107 and the pushing block 1104 are both inclined surfaces. A second spring 1108 is sleeved on the surface of the limiting rod 1107. A fixing groove 302 is opened on the surface of the support plate 3. The fixing block 1105 is snapped into the inside of the fixing groove 302. A limiting groove 303 corresponding to the limiting rod 1107 is opened on the inner wall of the fixing groove 302. One end of the limiting rod 1107 is snapped into the inside of the limiting groove 303 through the pushing block 1104. There are two sets of both the limiting rod 1107 and the spring, and they are symmetrically arranged inside the telescopic groove 1106. A slider 1109 is fixed on the side of the threaded tube 1103. A sliding groove corresponding to the slider 1109 is opened on the inner wall of the transmission chamber 1001. The slider 1109 moves inside the sliding groove. There are two sliders 1109 and two sliding grooves, and they are symmetrically arranged on both sides of the threaded tube 1103.

[0034] When the support roller 9 needs to be installed, simply place the support roller 9 in the designated position and engage the fixing block 1105 inside the fixing groove 302. Then, turn the knob 1101 to rotate the second threaded rod 1102. The second threaded rod 1102 moves the threaded tube 1103, which in turn moves the push block 1104 fixed to its end face. Since the push block 1104 and the limiting rod 1107 are perpendicular and their contact surfaces are inclined, the push block... During the movement of 1104, the limiting rod 1107 can be moved synchronously, thus enabling one end of the limiting rod 1107 to be engaged in the limiting groove 303, completing the fixed installation of the support roller 9. By fixing the support roller 9 with the fixing component 11, the support roller 9 can be kept stable during use, preventing it from loosening or shifting, ensuring the safety of the device. Furthermore, the fixing component 11 can also enable the support rod 201 to be quickly installed and disassembled, reducing equipment downtime and improving overall production efficiency and operational flexibility.

[0035] Working principle: First, the device is placed in the designated position and connected to a 220V mains power supply. The correcting roller 502 and the moving roller 503 are connected by the conveyor belt 8. Then, the main control equipment controls the first motor 401 to drive the first threaded rod 402 to rotate. The first threaded rod 402 drives the threaded cap 403 to move. The threaded cap 403 drives the first movable block 404 fixed at its upper end to move through the fixed rod, thereby driving the correcting roller 502, which rotates through one side of the first movable block 404, to move synchronously. At the same time, the first movable block 404 moves and drives the connecting rod 405 to move, thereby driving the second movable block 406 and the moving roller 503, which rotates through one side of the second movable block 406, to move synchronously. While adjusting the wrap angle of the conveyor belt 8, the conveyor belt 8 is kept taut. Then, the second motor 501 controls the correcting roller 502 to rotate, thereby driving the conveyor belt 8 to move. During the material transport process, the main control equipment monitors the conveyor belt 8 in real time through the vision detection component 7. When the vision detection component 7 detects that the conveyor belt 8 is deviating, the image analysis module and processing module compare the images at both ends of the conveyor belt 8 and calculate the direction and distance of the deviation. Then, the corresponding data is transmitted to the main control equipment. Subsequently, the main control equipment controls the operation of the corresponding electric push rod 5022. The electric push rod 5022 drives the push rod 5023 to move. During the movement of the push rod 5023, the push rod 5026 is pushed upward through the inclined groove 5024. The push rod 5026 pushes the guide block 5027 fixed on its upper end to move synchronously. The inwardly inclined guide block 5027 corrects the deviation of the conveyor belt 8.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A machine vision-based anti-deviation belt conveyor, comprising a fixed frame (1), a support plate (3), and a baffle (2) fixed to the upper surface of the fixed frame (1), wherein the other end of the baffle (2) is fixed inside the support plate (3), characterized in that: A support rod (201) is fixed on the lower surface of the baffle (2), and an adjustment component (4) is provided on the side of the support rod (201). A transmission component (5) is provided on the side of the fixed frame (1), and the transmission component (5) is slidably connected to the side of the fixed frame (1) through the adjustment component (4). The transmission assembly (5) includes a correction roller (502) and a moving roller (503). Two correction rollers (502) are symmetrically arranged, and the two correction rollers (502) are fixed at one end close to each other. An inclined guide block (5027) for guiding is movably arranged on the surface of the correction roller (502). A conveyor belt (8) is arranged on the side of the fixed frame (1). The correction roller (502) and the moving roller (503) are connected by transmission through the conveyor belt (8). The correction roller (502) has a movable chamber (5021) inside. An electric push rod (5022) is fixed to the inner wall of the movable chamber (5021). A push rod (5023) is fixed to the output end of the electric push rod (5022). A support frame (5025) is also fixed to the inner wall of the movable chamber (5021). A top rod (5026) is passed through the surface of the support frame (5025). The upper end of the top rod (5026) is fixed to the lower surface of the guide block (5027). A groove (5024) corresponding to the top rod (5026) is opened on the surface of the push rod (5023). The lower end of the top rod (5026) passes through the support frame (5025) and overlaps the inner wall of the groove (5024). The surface of the correction roller (502) is provided with a through groove (5029) corresponding to the guide block (5027). The guide block (5027) passes through the through groove (5029). A first spring (5028) is sleeved on the outer periphery of the push rod (5026). The upper end of the first spring (5028) is fixed to the inner wall of the movable chamber (5021), and the lower end of the first spring (5028) is fixed to the upper surface of the support frame (5025). There are multiple guide blocks (5027), push rods (5026), and support frames (5025), which are evenly arranged inside the movable chamber (5021). The upper surface of the fixed frame (1) is fixed with a placement frame (6), and the lower surface of the placement frame (6) is fixed with a visual inspection component (7). The visual inspection component (7) includes an image acquisition module, an image analysis module, and a processing module.

2. The anti-deviation belt conveyor based on machine vision according to claim 1, characterized in that: The adjustment assembly (4) includes a first motor (401) fixed to the side of the support rod (201). The output end of the first motor (401) is fixed with a first threaded rod (402). The other end of the first threaded rod (402) is rotatably connected to the side of the fixing frame (1). A threaded cap (403) is threadedly connected to the surface of the first threaded rod (402). A first movable block (404) is fixedly connected to the upper end of the threaded cap (403) through a fixing rod. A first movable groove (101) is opened on the side of the fixing frame (1). A through hole (407) is opened on the surface of the first movable block (404). The first movable block (404) is engaged in the first movable groove (101) through the through hole (407).

3. The anti-deviation belt conveyor based on machine vision according to claim 2, characterized in that: A connecting rod (405) is hinged to the lower surface of the first movable block (404), and a second movable block (406) is hinged to the other end of the connecting rod (405). A second movable groove (301) is opened on the surface of the support plate (3). The second movable block (406) moves inside the second movable groove (301). One end of the correction roller (502) rotates through the first movable block (404). A second motor (501) is fixedly installed on the surface of the first movable block (404). The output end of the second motor (501) is fixed to one end of the correction roller (502). One end of the moving roller (503) is rotatably connected to the side of the second movable block (406).

4. The anti-deviation belt conveyor based on machine vision according to claim 1, characterized in that: It also includes a mounting plate (10) disposed on the side of the support plate (3), and a support roller (9) is rotatably connected to the other side of the mounting plate (10). A fixing component (11) is disposed inside the mounting plate (10). The mounting plate (10) is fixed to the side of the support plate (3) by the fixing component (11). The fixing component (11) includes a knob (1101) disposed on one side of the mounting plate (10). A second threaded rod (1102) is fixed to the side of the knob (1101). A transmission chamber (1001) is opened inside the mounting plate (10). One end of the second threaded rod (1102) is rotatably inserted into the transmission chamber (1001). A threaded tube (1103) is threadedly connected to the surface of the second threaded rod (1102). A push block (1104) is fixed to the end face of the threaded tube (1103).

5. The anti-deviation belt conveyor based on machine vision according to claim 4, characterized in that: The fixing component (11) also includes a fixing block (1105) fixed to the side of the mounting plate (10). The fixing block (1105) has a telescopic groove (1106) on its surface. The telescopic groove (1106) is connected to the transmission chamber (1001). One end of the pushing block (1104) passes through the inside of the telescopic groove (1106). A limiting rod (1107) also passes through the inside of the telescopic groove (1106). The limiting rod (1107) is perpendicular to the pushing block (1104), and the contact surfaces of the limiting rod (1107) and the pushing block (1104) are both inclined surfaces. A second spring (1108) is sleeved on the surface of the limiting rod (1107).

6. The anti-deviation belt conveyor based on machine vision according to claim 5, characterized in that: The support plate (3) has a fixing groove (302) on its surface. The fixing block (1105) is engaged inside the fixing groove (302). The inner wall of the fixing groove (302) has a limiting groove (303) corresponding to the limiting rod (1107). One end of the limiting rod (1107) is engaged inside the limiting groove (303) by a pushing block (1104). There are two sets of the limiting rod (1107) and the spring, which are symmetrically arranged inside the telescopic groove (1106). A slider (1109) is fixed on the side of the threaded tube (1103). The inner wall of the transmission chamber (1001) has a sliding groove corresponding to the slider (1109). The slider (1109) moves inside the sliding groove. There are two sliders (1109) and two sliding grooves, which are symmetrically arranged on both sides of the threaded tube (1103).

7. The method of using the machine vision-based anti-deviation belt conveyor according to claim 3, characterized in that: The usage method of this machine vision-based anti-deviation belt conveyor is as follows. First, place it in the designated position, and connect the correction roller (502) and the moving roller (503) via the conveyor belt (8). Then, control the first motor (401) to drive the first threaded rod (402) to rotate. The first threaded rod (402) drives the threaded cap (403) to move. The threaded cap (403) drives the first movable block (404) fixed at its upper end to move via the fixed rod, thereby driving the correction roller (502) rotating through one side of the first movable block (404) to move synchronously. At the same time, the first movable block (404) drives the connecting rod (405) to move during its movement, thereby driving the second movable block (406) and the moving roller (503) rotating through one side of the second movable block (406) to move synchronously. While adjusting the wrap angle of the conveyor belt (8), the conveyor belt (8) is kept taut. Then, the second motor (501) controls the correction roller (502) to rotate, thereby driving the conveyor belt (8) to move. During the transport of goods, the conveyor belt (8) is monitored in real time by the vision detection component (7). When the vision detection component (7) detects that the conveyor belt (8) is deviated, the direction and distance of the deviation of the conveyor belt (8) are calculated by comparing the images at both ends of the conveyor belt (8). The corresponding electric push rod (5022) is controlled to operate. The electric push rod (5022) drives the push rod (5023) to move. During the movement of the push rod (5023), the top rod (5026) is pushed upward by the inclined groove (5024). The top rod (5026) pushes the guide block (5027) fixed on its upper end to move synchronously. The conveyor belt (8) is corrected by the inwardly inclined guide block (5027).

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