A conveyor belt tear detection device and method

Abstract

This invention belongs to the field of conveyor belt inspection technology, specifically a conveyor belt tear detection device and method, including a detection component and a marking and dyeing component. The detection component includes a vision camera, an image processing unit, a control unit, and an alarm unit. The marking and dyeing component is used to mark the location of cracks in the conveyor belt. The marking and dyeing component includes a storage box and an electrically controlled nozzle. The storage box contains dye. The electrically controlled nozzle is connected to the storage box via a conduit. The detection component monitors the tearing condition of the conveyor belt. When the vision camera detects a crack in a local area of ​​the conveyor belt, the control unit sends an alarm signal to the outside through the alarm unit and controls the electrically controlled nozzle to spray dye on the corresponding tear area, thereby marking the location of the crack in the conveyor belt. Afterwards, relevant personnel can quickly locate the crack through the marked points during maintenance, facilitating the repair of the conveyor belt.

Description

Technical Field

[0001] This invention belongs to the field of conveyor belt detection technology, specifically a conveyor belt tear detection device and method. Background Technology

[0002] Conveyor belts are widely used in various industrial production processes, especially in mining, metallurgy, chemical, and food processing industries, for the continuous transport of materials. The operational stability and safety of conveyor belts directly affect production efficiency and equipment reliability. However, during long-term use, conveyor belts may tear or break due to various reasons, such as material impact, friction, mechanical fatigue, and environmental factors. If initial cracks appear on the conveyor belt and are not repaired or replaced, it is very easy for it to break, which will not only lead to material leakage and transportation interruption, but may also cause equipment damage and safety accidents, resulting in huge economic losses and safety hazards for enterprises.

[0003] Chinese patent application CN111661590B discloses a method for detecting tear damage on a mining belt conveyor. The key technical points include the following steps: 1. Video acquisition: A visual sensor acquires real-time video images of the conveyor belt surface area covered by multiple linear lights while it is in motion; 2. Single-frame image processing and analysis: The visual sensor performs single-frame image processing and analysis on each acquired video image; 3. Multi-frame image fusion processing and analysis: The visual sensor performs multi-frame image fusion processing and analysis on each single-frame image after the second step of processing and analysis, combined with the conveyor belt speed input from an external device, to obtain complete information on the conveyor belt tear damage and output it. This technology can accurately detect whether the conveyor belt is torn and can calculate and output the length, width, depth, and contour features of the damage.

[0004] However, the above-mentioned technologies often have the following drawbacks: when using visual technology to detect the tearing of the conveyor belt, they can only detect local cracks or fissures in the conveyor belt and provide corresponding alarm feedback. However, the cracks on the surface of the conveyor belt may sometimes be quite small, and even after the alarm is triggered, it is difficult for relevant personnel to accurately locate the tear with the naked eye, which is not conducive to subsequent observation and repair work.

[0005] Therefore, the present invention provides a conveyor belt tear detection device and method. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a conveyor belt tear detection device according to the present invention, comprising a detection component and a marking and dyeing component;

[0008] The detection component is used to observe cracks in the conveyor belt in real time; the detection component includes a vision camera, an image processing unit, a control unit, and an alarm unit.

[0009] The marking and dyeing assembly is used to mark the location of cracks in the conveyor belt; the marking and dyeing assembly includes a storage box and an electrically controlled nozzle; the storage box contains dye; the electrically controlled nozzle and the storage box are connected by a conduit;

[0010] Both the vision camera and the electronically controlled nozzle are located below the conveyor belt; multiple vision cameras and electronically controlled nozzles are arranged along the width of the conveyor belt and correspond to each other.

[0011] Preferably, it also includes a roller coating assembly; the roller coating assembly is used to evenly coat the dyeing agent sprayed onto the surface of the conveyor belt.

[0012] The roller coating assembly includes a cleaning tank located below the conveyor belt; the cleaning tank is filled with clean water; a coating roller is rotatably connected inside the cleaning tank, and the coating roller is in contact with the surface of the conveyor belt.

[0013] Preferably, a linkage roller is rotatably connected inside the cleaning tank; an absorbent layer is fixedly connected to the surface of the linkage roller, and the absorbent layer is in contact with the surface of the coating roller.

[0014] Preferably, a set of elastic diaphragms are evenly distributed inside the absorbent layer; a pressure plate and a turntable are provided on one side of the linkage roller, and the turntable is rotatably connected to the inner wall of the cleaning tank; the coating roller and the turntable are connected by a drive through a pulley, a belt, and a second pulley; a set of protrusions are evenly distributed on the surface of the turntable.

[0015] A spring telescopic rod is fixedly connected between the pressure plate and the inner wall of the cleaning tank; a guide wheel is rotatably connected to the surface of the pressure plate at a corresponding position on the turntable.

[0016] Preferably, an arc-shaped plate is fixedly connected inside the cleaning tank at the position below the coating roller; a flexible layer is fixedly connected to the upper side of the arc-shaped plate, and the flexible layer is in contact with the surface of the coating roller.

[0017] Preferably, a set of flexible protrusions are evenly distributed on the upper side of the flexible layer; water-permeable holes are provided between adjacent flexible protrusions, and the water-permeable holes penetrate the arc-shaped plate.

[0018] Preferably, a set of magnetic blocks are evenly distributed at the inner edge of the coating roller; a movable ring is slidably connected inside the water-permeable hole; a spring is fixedly connected between the movable ring and the water-permeable hole; the magnetic blocks and the movable ring attract each other when they are close together.

[0019] Preferably, an elastic hollow block is fixedly connected to the inner wall surface of the permeable hole; a guide hole is provided between the top of the flexible protrusion and the elastic hollow block; and a filter screen is provided at the top of the guide hole.

[0020] A method for detecting conveyor belt tearing, the method employing the aforementioned conveyor belt tearing detection device, includes the following steps:

[0021] S1: During normal operation of the conveyor, the detection component monitors the tearing of the conveyor belt. When the vision camera detects a crack in a local area of ​​the conveyor belt, the control unit sends an alarm signal to the outside through the alarm unit and controls the electronically controlled nozzle to spray dye on the corresponding tear area for marking.

[0022] S2: The water film on the surface of the coating roller adsorbs the dust on the surface of the conveyor belt, and after the dye is sprayed, the coating roller can evenly apply the dye to the cracks.

[0023] S3: When the coating roller rotates into the water, the combined cleaning action of the flexible layer and water can promote the rapid removal of dyes or dust adhering to the surface of the coating roller.

[0024] S4: After the coating roller leaves the water, the absorbent layer rolls on the surface of the coating roller and continuously absorbs water, reducing the residual water on the surface of the coating roller.

[0025] S5: During the rotation of the coating roller, the turntable is driven to rotate synchronously through pulley one, belt and pulley two, so that the guide wheel flips over the protrusion intermittently, and cooperates with the spring telescopic rod to make the pressure plate move back and forth.

[0026] S6: The pressure plate continuously squeezes the absorbent layer to expel the water inside, ensuring that the absorbent layer can efficiently absorb water from the coating roller.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. The conveyor belt tear detection device and method of the present invention monitors the tearing condition of the conveyor belt using detection components during normal operation of the conveyor. When the vision camera detects a crack in a local area of ​​the conveyor belt, the control unit sends an alarm signal to the outside through the alarm unit according to a pre-set program, and controls the electronically controlled nozzle to spray dye on the corresponding tear area, thereby marking the crack location of the conveyor belt. Afterwards, relevant personnel can quickly find the crack through the marked points during maintenance, so as to facilitate the repair of the conveyor belt.

[0029] 2. The conveyor belt tear detection device and method of the present invention can drive the coating roller to rotate inside the cleaning tank during the movement of the conveyor belt. After the electronically controlled nozzle sprays the dye onto the surface of the conveyor belt, the coating roller can roll on the surface of the conveyor belt and evenly apply the dye to the crack, improving the adhesion and coloring degree of the dye, while reducing the distribution thickness of the dye on the surface of the conveyor belt, so that the dye will not accumulate in large quantities at the crack, making it easier to observe the tear area later. In addition, after the coating roller applies the dye, it can also prevent the dye droplets from dripping downwards and causing pollution to other equipment.

[0030] 3. The conveyor belt tear detection device and method of the present invention utilizes the fact that the coating roller comes into contact with water when it rotates, so that a certain amount of water can remain on the surface of the coating roller and form a water film. When the coating roller comes into contact with the conveyor belt, under the action of the viscosity and tension of the water, dust and other impurities on the surface of the conveyor belt can be adsorbed onto the surface of the coating roller. When the coating roller rotates to the bottom, the dust can be dispersed in the water. Thus, the daily cleaning of the conveyor belt is carried out by this rotation cycle. Attached Figure Description

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] Figure 1 This is a perspective view of the present invention;

[0033] Figure 2 This is a schematic diagram of the coating roller in this invention;

[0034] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0035] Figure 4 This is a cross-sectional view of the present invention;

[0036] Figure 5 yes Figure 4 Enlarged view of a section at point B in the middle;

[0037] Figure 6 yes Figure 4 Enlarged view of a section at point C;

[0038] Figure 7 This is a schematic diagram of the method flow of the present invention.

[0039] In the diagram: 1. Conveyor belt; 2. Vision camera; 3. Storage box; 4. Electrically controlled nozzle; 5. Conduit; 6. Cleaning tank; 7. Coating roller; 8. Linkage roller; 9. Water-absorbing layer; 10. Elastic diaphragm; 11. Pressure plate; 12. Turntable; 13. Belt; 14. Belt; 15. Belt; 16. Protrusion; 17. Spring telescopic rod; 18. Guide wheel; 19. Arc plate; 20. Flexible layer; 21. Flexible protrusion; 22. Water-permeable hole; 23. Magnetic block; 24. Movable ring; 25. Spring; 26. Elastic hollow block; 27. Guide hole; 28. Filter screen. Detailed Implementation

[0040] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0041] like Figures 1 to 6 As shown, the conveyor belt tear detection device of the present invention includes a detection component and a marking and dyeing component;

[0042] The detection component is used to observe the cracks in the conveyor belt 1 in real time; the detection component includes a vision camera 2, an image processing unit, a control unit, and an alarm unit.

[0043] The marking and dyeing assembly is used to mark the location of cracks in the conveyor belt 1; the marking and dyeing assembly includes a storage box 3 and an electrically controlled nozzle 4; the storage box 3 contains dye; the electrically controlled nozzle 4 and the storage box 3 are connected by a conduit 5;

[0044] The vision camera 2 and the electronically controlled nozzle 4 are both located below the conveyor belt 1; multiple vision cameras 2 and electronically controlled nozzles 4 are arranged along the width direction of the conveyor belt 1 and correspond to each other.

[0045] When existing detection devices use visual technology to detect the tearing of conveyor belt 1, they can only detect local cracks or fissures in conveyor belt 1 and provide corresponding alarm feedback. However, the cracks on the surface of conveyor belt 1 may sometimes be quite small, and even after the alarm is triggered, it is difficult for relevant personnel to accurately locate the tear with the naked eye, which is not conducive to subsequent observation and repair work.

[0046] This invention is installed below the conveyor. During normal operation of the conveyor, the detection component monitors the tearing condition of the conveyor belt 1. When the vision camera 2 detects a crack in a local area of ​​the conveyor belt 1, the control unit sends an alarm signal to the outside through the alarm unit according to the preset program, and controls the electronically controlled nozzle 4 to spray dye on the corresponding tear area, thereby marking the crack location of the conveyor belt 1. Afterwards, relevant personnel can quickly find the crack through the marked points during maintenance, so as to facilitate the repair of the conveyor belt 1.

[0047] It is worth noting that there is a certain distance between the vision camera 2 and the electronically controlled nozzle 4 in the direction of movement of the conveyor belt 1. Therefore, it takes a certain amount of time from when the vision camera 2 detects a crack to when the crack moves to the electronically controlled nozzle 4. Thus, the control component should control the electronically controlled nozzle 4 to delay spraying the dye for a certain period of time. The specific delay time needs to be combined with the distance between the vision camera 2 and the electronically controlled nozzle 4 and the real-time movement speed of the conveyor belt 1, and can be controlled by a pre-set program.

[0048] In a preferred embodiment of the present invention, a roller coating assembly is also included; the roller coating assembly is used to uniformly coat the dyeing agent sprayed onto the surface of the conveyor belt 1.

[0049] The roller coating assembly includes a cleaning tank 6 located below the conveyor belt 1; the cleaning tank 6 is filled with clean water; a coating roller 7 is rotatably connected inside the cleaning tank 6, and the coating roller 7 is in contact with the surface of the conveyor belt 1.

[0050] During the movement of the conveyor belt 1, the coating roller 7 can rotate inside the cleaning tank 6. When the electronically controlled nozzle 4 sprays the dye onto the surface of the conveyor belt 1, the coating roller 7 can roll on the surface of the conveyor belt 1 and evenly apply the dye to the cracks, improving the adhesion and coloring degree of the dye. At the same time, it reduces the distribution thickness of the dye on the surface of the conveyor belt 1, so that the dye will not accumulate in large quantities at the cracks, making it easier to observe the torn parts later. In addition, after the coating roller 7 applies the dye, it can also prevent the dye droplets from dripping down and causing pollution to other equipment.

[0051] The clean water inside the cleaning tank 6 covers the bottom of the coating roller 7. Therefore, when the coating roller 7 applies the dye, the dye adhering to its surface moves to the bottom and is cleaned by the water, reducing the residue of dye on the surface of the coating roller 7 and preventing the dye from staining other parts of the conveyor belt 1. It is advisable to use water-soluble paint, which is not only conducive to the cleaning effect of water, but also easy to wipe off after subsequent repairs to the conveyor belt 1, so as not to affect the use of the conveyor belt 1.

[0052] In addition, during the normal operation of the conveyor belt 1, some dust or other debris often remains on its surface due to the transport of materials. This invention utilizes the fact that the coating roller 7 comes into contact with water when it rotates, which allows a certain amount of moisture to remain on the surface of the coating roller 7 and form a water film. When the coating roller 7 comes into contact with the conveyor belt 1, under the action of the viscosity and tension of the water, the dust and other debris on the surface of the conveyor belt 1 can be adsorbed onto the surface of the coating roller 7. When the coating roller 7 rotates to the bottom, it can disperse the dust in the water. Thus, the daily cleaning of the conveyor belt 1 is carried out by utilizing this rotation cycle.

[0053] The cleaning tank 6 is rotatably connected to a linkage roller 8. A water-absorbing layer 9 is fixedly connected to the surface of the linkage roller 8, and the water-absorbing layer 9 adheres to the surface of the coating roller 7. The material of the water-absorbing layer 9 can be sponge, absorbent cloth, porous material, etc. During the rotation of the coating roller 7, it drives the water-absorbing layer 9 and the linkage roller 8 to rotate synchronously. Then, when the coating roller 7 leaves the water, the water-absorbing layer 9 rolls on the surface of the coating roller 7 and continuously absorbs moisture, thereby reducing the moisture content on the surface of the coating roller 7 and preventing a large amount of moisture from being transferred to the surface of the conveyor belt 1, thus affecting its transport operation.

[0054] In a preferred embodiment of the present invention, a set of elastic diaphragms 10 are evenly distributed inside the absorbent layer 9; a pressure plate 11 and a turntable 12 are provided on one side of the linkage roller 8, and the turntable 12 is rotatably connected to the inner wall of the cleaning tank 6; the coating roller 7 and the turntable 12 are connected by a pulley 13, a belt 14, and a pulley 15; a set of protrusions 16 are evenly distributed on the surface of the turntable 12.

[0055] A spring telescopic rod 17 is fixedly connected between the pressure plate 11 and the inner wall of the cleaning tank 6; a guide wheel 18 is rotatably connected to the surface of the pressure plate 11 at a corresponding position on the turntable 12.

[0056] The specific structure of the spring telescopic rod 17 can be a fixed cylinder, a telescopic rod slidably connected inside the fixed cylinder, and a spring 25.

[0057] During the rotation of the coating roller 7, the turntable 12 can be driven to rotate synchronously through pulley 13, belt 14, and pulley 15. The guide wheel 18 is attached to the surface of the turntable 12 under the tightening force of the spring telescopic rod 17. Therefore, as the turntable 12 rotates, the guide wheel 18 intermittently flips over the protrusion 16 and cooperates with the spring telescopic rod 17 to make the pressure plate 11 move back and forth, thereby continuously squeezing the water-absorbing layer 9 and squeezing out the water inside, ensuring that it can efficiently absorb water from the coating roller 7. Multiple elastic diaphragms 10 are used to divide the water-absorbing layer 9 into multiple units, so that when the water-absorbing layer 9 is squeezed by the pressure plate 11, the water between different units will not flow to each other, thereby improving the efficiency of squeezing out water.

[0058] In a preferred embodiment of the present invention, an arc-shaped plate 19 is fixedly connected inside the cleaning tank 6 at the lower side of the coating roller 7; a flexible layer 20 is fixedly connected to the upper side of the arc-shaped plate 19, and the flexible layer 20 is in contact with the surface of the coating roller 7. Both the arc-shaped plate 19 and the flexible layer 20 are submerged in water. As the coating roller 7 rotates continuously, the flexible layer 20 rubs and brushes against the surface of the coating roller 7, which can improve the cleaning efficiency of the dye or dust on its surface.

[0059] A set of flexible protrusions 21 are evenly distributed on the upper side of the flexible layer 20; water-permeable holes 22 are provided between adjacent flexible protrusions 21, and the water-permeable holes 22 penetrate the arc-shaped plate 19. By setting multiple flexible protrusions 21, a bumpy rough structure is formed on the surface of the flexible layer 20, thereby increasing the scrubbing force on the coating roller 7. During scrubbing, impurities falling off the surface of the coating roller 7 can fall downward through the water-permeable holes 22. The wastewater generated during scrubbing can also be exchanged with the clean water inside the cleaning tank 6 through the water-permeable holes 22, ensuring a good cleaning effect on the coating roller 7.

[0060] In a preferred embodiment of the present invention, a set of magnetic blocks 23 are evenly distributed at the inner edge of the coating roller 7; a movable ring 24 is slidably connected inside the water-permeable hole 22; a spring 25 is fixedly connected between the movable ring 24 and the water-permeable hole 22; the magnetic blocks 23 and the movable ring 24 attract each other when they are close together. When the magnetic block 23 rotates to the bottom with the coating roller 7, it attracts the movable ring 24 and drives the movable ring 24 to slide upward inside the water-permeable hole 22. When the magnetic block 23 gradually moves away, the spring 25 pulls the movable ring 24 downward to reset, causing the movable ring 24 to continuously reciprocate inside the water-permeable hole 22. On the one hand, this can unclog the water-permeable hole 22 and prevent it from being blocked by impurities. On the other hand, the movement of the movable ring 24 can drive the water inside the water-permeable hole 22 to flow quickly, accelerating the exchange between impurities and sewage generated during washing and the clean water below, so that clean water continuously comes into contact with the coating roller 7.

[0061] In a preferred embodiment of the present invention, an elastic hollow block 26 is fixedly connected to the inner wall surface of the water-permeable hole 22; a guide hole 27 is provided between the top of the flexible protrusion 21 and the elastic hollow block 26; a filter screen 28 is provided on the top of the guide hole 27. When the movable ring 24 moves upward, it can squeeze the elastic hollow block 26, squeezing the water inside the elastic hollow block 26 upward through the guide hole 27. The high-pressure small channel water flow is used to rinse the coating roller 7, improving the efficiency of impurities falling off the surface of the coating roller 7. In addition, the water flow rebounds from the surface of the coating roller 7 and acts on the inside of the water-permeable hole 22, which can further unclog the water-permeable hole 22 and promote water flow. When the movable ring 24 moves downward, the elastic hollow block 26 expands and recovers and reabsorbs water. By setting the filter screen 28, the problem of impurities being sucked in can be prevented.

[0062] like Figure 7 As shown, the present invention provides a conveyor belt tear detection method, which uses the aforementioned conveyor belt tear detection device and includes the following steps:

[0063] S1: During normal operation of the conveyor, the detection component monitors the tearing condition of the conveyor belt 1. When the vision camera 2 detects a crack in a local area of ​​the conveyor belt 1, the control unit sends an alarm signal to the outside through the alarm unit and controls the electronically controlled nozzle 4 to spray dye to mark the corresponding tearing area.

[0064] S2: The water film on the surface of the coating roller 7 adsorbs the dust on the surface of the conveyor belt 1, and after the dye is sprayed, the coating roller 7 can evenly apply the dye to the crack.

[0065] S3: When the coating roller 7 rotates into the water, the combined cleaning action of the flexible layer 20 and water can promote the rapid removal of dyes or dust adhering to the surface of the coating roller 7.

[0066] S4: After the coating roller 7 leaves the water, the water-absorbing layer 9 rolls on the surface of the coating roller 7 and continuously absorbs water, reducing the residual water on the surface of the coating roller 7.

[0067] S5: During the rotation of the coating roller 7, the turntable 12 is driven to rotate synchronously through the pulley 13, belt 14, and pulley 2 15, so that the guide wheel 18 intermittently flips over the protrusion 16 and cooperates with the spring telescopic rod 17 to make the pressure plate 11 move back and forth.

[0068] S6: The pressure plate 11 continuously squeezes the absorbent layer 9 to squeeze out the water inside, ensuring that the absorbent layer 9 can efficiently absorb water from the coating roller 7.

[0069] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0070] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A conveyor belt tear detection device, characterized in that: Includes detection components and labeling / staining components; The detection component is used to observe the cracks in the conveyor belt (1) in real time; the detection component includes a vision camera (2), an image processing unit, a control unit and an alarm unit; The marking and dyeing assembly is used to mark the crack location of the conveyor belt (1); the marking and dyeing assembly includes a storage box (3) and an electrically controlled nozzle (4); the storage box (3) contains dye; the electrically controlled nozzle (4) and the storage box (3) are connected by a conduit (5); The visual camera (2) and the electronically controlled nozzle (4) are both located below the conveyor belt (1); multiple visual cameras (2) and electronically controlled nozzles (4) are provided along the width direction of the conveyor belt (1) and correspond to each other; It also includes a roller coating assembly; the roller coating assembly is used to coat the dyeing agent sprayed on the surface of the conveyor belt (1) evenly; The roller coating assembly includes a cleaning tank (6) disposed below the conveyor belt (1); the cleaning tank (6) is filled with clean water; a coating roller (7) is rotatably connected inside the cleaning tank (6), and the coating roller (7) is in contact with the surface of the conveyor belt (1). The cleaning tank (6) is rotatably connected to a linkage roller (8); the linkage roller (8) is fixedly connected to a water-absorbing layer (9), and the water-absorbing layer (9) is in contact with the surface of the coating roller (7); The absorbent layer (9) has a set of elastic diaphragms (10) evenly distributed inside; the linkage roller (8) is provided with a pressure plate (11) and a turntable (12) on one side, and the turntable (12) is rotatably connected to the inner wall of the cleaning tank (6); the coating roller (7) and the turntable (12) are connected by a drive through a pulley (13), a belt (14), and a pulley (15); the surface of the turntable (12) has a set of protrusions (16) evenly distributed. A spring telescopic rod (17) is fixedly connected between the pressure plate (11) and the inner wall of the cleaning tank (6); a guide wheel (18) is rotatably connected to the surface of the pressure plate (11) at the corresponding position of the turntable (12). During the rotation of the coating roller (7), it can drive the water-absorbing layer (9) and the linkage roller (8) to rotate synchronously; During the rotation of the coating roller (7), the turntable (12) is driven to rotate synchronously through the pulley one (13), belt (14), and pulley two (15), so that the guide wheel (18) intermittently flips over the protrusion (16) and cooperates with the spring telescopic rod (17) to make the pressure plate (11) move back and forth. The pressure plate (11) continuously squeezes the water-absorbing layer (9) to squeeze out the water inside.

2. The conveyor belt tear detection device according to claim 1, characterized in that: An arc-shaped plate (19) is fixedly connected inside the cleaning tank (6) at the lower side of the coating roller (7); a flexible layer (20) is fixedly connected to the upper side of the arc-shaped plate (19), and the flexible layer (20) is in contact with the surface of the coating roller (7).

3. The conveyor belt tear detection device according to claim 2, characterized in that: A set of flexible protrusions (21) are evenly distributed on the upper side of the flexible layer (20); water-permeable holes (22) are provided between adjacent flexible protrusions (21), and the water-permeable holes (22) penetrate the arc plate (19).

4. The conveyor belt tear detection device according to claim 3, characterized in that: A set of magnetic blocks (23) are evenly distributed at the inner edge of the coating roller (7); a movable ring (24) is slidably connected inside the water-permeable hole (22); a spring (25) is fixedly connected between the movable ring (24) and the water-permeable hole (22); the magnetic blocks (23) and the movable ring (24) attract each other when they are close together.

5. The conveyor belt tear detection device according to claim 4, characterized in that: An elastic hollow block (26) is fixedly connected to the inner wall surface of the permeable hole (22); a guide hole (27) is provided between the top of the flexible protrusion (21) and the elastic hollow block (26); a filter screen (28) is provided on the top of the guide hole (27).

6. A method for detecting conveyor belt tearing, the method employing the conveyor belt tearing detection device as described in claim 5, characterized in that: Includes the following steps: S1: During normal operation of the conveyor, the detection component is used to monitor the tearing of the conveyor belt (1). When the vision camera (2) finds a crack in a local part of the conveyor belt (1), the control unit sends an alarm signal to the outside through the alarm unit and controls the electronically controlled nozzle (4) to spray dye on the corresponding tearing part for marking. S2: The water film on the surface of the coating roller (7) adsorbs the dust on the surface of the conveyor belt (1), and after the dye is sprayed, the coating roller (7) can evenly apply the dye to the crack. S3: When the coating roller (7) rotates into the water, the dye or dust adhering to the surface of the coating roller (7) can be quickly removed by the combined cleaning action of the flexible layer (20) and water.

7. The conveyor belt tear detection method according to claim 6, characterized in that: The method also includes the following steps: S4: After the coating roller (7) leaves the water, the water-absorbing layer (9) rolls on the surface of the coating roller (7) and continuously absorbs water, reducing the residual water on the surface of the coating roller (7); S5: During the rotation of the coating roller (7), the turntable (12) is driven to rotate synchronously through the pulley one (13), belt (14), and pulley two (15), so that the guide wheel (18) intermittently flips over the protrusion (16) and cooperates with the spring telescopic rod (17) to make the pressure plate (11) move back and forth. S6: The pressure plate (11) continuously squeezes the water-absorbing layer (9) to squeeze out the water inside, ensuring that the water-absorbing layer (9) can efficiently absorb water from the coating roller (7).

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