Conveying belt tearing detection device and method

Abstract

The invention belongs to the technical field of conveyor belt detection, and particularly relates to a conveyor belt tearing detection device and method, and the conveyor belt tearing detection device comprises a detection assembly and a mark dyeing assembly; the detection assembly comprises a visual camera, an image processing unit, a control unit and an alarm unit; the marking and dyeing assembly is used for marking the crack position of the conveying belt; the mark dyeing assembly comprises a storage box and an electric control spray head; a coloring agent is added into the storage box; the electric control spray head is communicated with the storage box through a guide pipe; the detection assembly is used for monitoring the tearing condition of the conveying belt, and when the visual camera finds that cracks appear at the local position of the conveying belt, the control unit sends an alarm signal to the outside through the alarm unit and controls the electric control spray head to spray a coloring agent at the corresponding tearing part, so that the crack position of the conveying belt is dyed and marked; and then related personnel can quickly find the cracks through the marked point positions during maintenance, so that the conveying belt can be conveniently repaired.

Description

Technical Field

[0001] The invention belongs to the technical field of conveyor belt detection, and in particular relates to a conveyor belt tear detection device and method. Background Art

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

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

[0004] However, the above technology often has the following defects: when it uses visual technology to detect the tearing of the conveyor belt, it can only find local cracks or fissures in the conveyor belt and give corresponding alarm feedback. However, the cracks on the surface of the conveyor belt may sometimes be quite small. Even after the alarm, it is difficult for relevant personnel to accurately find the tearing position with the naked eye, which is not conducive to subsequent observation and repair work.

[0005] To this end, the present invention provides a conveyor belt tear detection device and method. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a conveyor belt tear detection device described in the present invention comprises a detection component and a marking and dyeing component;

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

[0009] The marking and dyeing component is used to mark the crack position of the conveyor belt; the marking and dyeing component includes a storage box and an electric-controlled nozzle; a dye is added inside the storage box; the electric-controlled nozzle and the storage box are connected through a conduit;

[0010] The visual camera and the electric-controlled nozzle are both arranged below the conveyor belt; a plurality of the visual cameras and the electric-controlled nozzle are arranged along the width direction 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 dye sprayed on the surface of the conveyor belt;

[0012] The roller coating assembly comprises a cleaning tank arranged below the conveyor belt; clean water is added inside the cleaning tank; 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; a water-absorbing layer is fixedly connected to the surface of the linkage roller, and the water-absorbing layer is in contact with the surface of the coating roller.

[0014] Preferably, a group of elastic diaphragms are evenly distributed inside the water-absorbing 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 through a first pulley, a belt, and a second pulley; a group of protrusions are evenly distributed on the surface of the turntable;

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

[0016] Preferably, an arc-shaped plate is fixedly connected to the interior of the cleaning tank at a 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 group of flexible protrusions are evenly distributed on the upper side of the flexible layer; water-permeable holes are arranged between adjacent flexible protrusions, and the water-permeable holes penetrate the arc-shaped plate.

[0018] Preferably, a group 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; and the magnetic blocks and the movable ring attract each other when they are close to each other.

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

[0020] A conveyor belt tear detection method, the method adopts the above conveyor belt tear detection device, comprising the following steps:

[0021] S1: During the normal operation of the conveyor, the detection component is used to monitor the tearing condition of the conveyor belt. When the visual camera finds cracks at a local position 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 tearing position for marking;

[0022] S2: The dust on the conveyor belt surface is absorbed by the water film on the coating roller surface, 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 dye or dust adhering to the surface of the coating roller can be quickly removed by the coordinated cleaning effect of the flexible layer and the water;

[0024] S4: After the coating roller leaves the water, the water-absorbing layer rolls on the surface of the coating roller and continuously absorbs water, thereby 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 the pulley 1, the belt, and the pulley 2, so that the guide wheel intermittently turns over the raised part and cooperates with the spring telescopic rod to enable the pressure plate to reciprocate left and right;

[0026] S6: The water absorbing layer is continuously squeezed by the pressing plate to squeeze out the water inside it, so as to ensure that the water absorbing layer can absorb water efficiently for the coating roller.

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

[0028] 1. The present invention discloses a conveyor belt tear detection device and method. During the normal operation of the conveyor, the detection component is used to monitor the tearing condition of the conveyor belt. When the visual camera finds cracks in a local position 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 a dye on the corresponding tearing position, thereby marking the crack position of the conveyor belt. After that, relevant personnel can quickly find the cracks through the marked points during maintenance, so as to repair the conveyor belt.

[0029] 2. The present invention describes a conveyor belt tear detection device and method, which can drive the coating roller to rotate inside the cleaning tank during the movement of the conveyor belt. After the electric-controlled nozzle sprays the dye on 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 cracks, thereby improving the adhesion and coloring of the dye and 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 cracks, facilitating the subsequent observation of the tearing site. 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 described in the present invention utilizes the contact between the coating roller and water during rotation, which can leave a certain amount of moisture on the surface of the coating roller and form a water film. When the coating roller contacts the conveyor belt, the viscosity and tension of the water can adsorb dust and other debris on the surface of the conveyor belt onto the surface of the coating roller. When the coating roller rotates to the bottom, the dust can be dispersed in the water, so that the conveyor belt can be cleaned on a daily basis by utilizing the rotation cycle process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] Figure 1 is a stereogram of the present invention;

[0033] Figure 2 It is a schematic structural diagram of the coating roller in the present invention;

[0034] Figure 3 yes Figure 2 A partial enlarged view of the middle part;

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

[0036] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0037] Figure 6 yes Figure 4 A partial enlarged view of point C in the middle;

[0038] Figure 7 It is a schematic flow chart of the method of the present invention.

[0039] In the figure: conveyor belt 1, visual camera 2, storage box 3, electric control nozzle 4, catheter 5, cleaning tank 6, coating roller 7, linkage roller 8, water absorption layer 9, elastic diaphragm 10, pressure plate 11, turntable 12, pulley 13, belt 14, pulley 2 15, raised part 16, spring telescopic rod 17, guide wheel 18, arc plate 19, flexible layer 20, flexible protrusion 21, water permeable hole 22, magnetic block 23, movable ring 24, spring 25, elastic hollow block 26, guide hole 27, filter screen 28. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

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

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

[0043] The marking and dyeing component is used to mark the crack position of the conveyor belt 1; the marking and dyeing component includes a storage box 3 and an electric-controlled nozzle 4; a dye is added inside the storage box 3; the electric-controlled nozzle 4 is connected to the storage box 3 through a conduit 5;

[0044] The visual camera 2 and the electric-controlled nozzle 4 are both arranged below the conveyor belt 1; a plurality of the visual camera 2 and the electric-controlled nozzle 4 are arranged along the width direction of the conveyor belt 1 and correspond to each other.

[0045] When the existing detection device uses visual technology to detect the tearing condition of the conveyor belt 1, it can only detect local cracks or fissures in the conveyor belt 1 and make corresponding alarm feedback. However, the cracks on the surface of the conveyor belt 1 may sometimes be quite small. Even after the alarm, it is difficult for relevant personnel to accurately find the tearing position with the naked eye, which is not conducive to subsequent observation and repair work.

[0046] The present invention is arranged under the conveyor, and uses the detection component to monitor the tearing condition of the conveyor belt 1 during the normal operation of the conveyor. When the visual camera 2 finds that a crack appears at a local position of the conveyor belt 1, the control unit sends an alarm signal to the outside through the alarm unit according to a pre-set program, and controls the electric control nozzle 4 to spray a dye on the corresponding tearing position, thereby marking the crack position of the conveyor belt 1 with dye. After that, relevant personnel can quickly find the crack through the marked point during maintenance, so as to repair the conveyor belt 1.

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

[0048] As a preferred embodiment of the present invention, it also includes a roller coating assembly; the roller coating assembly is used to evenly coat the dye sprayed on the surface of the conveyor belt 1;

[0049] The roller coating assembly includes a cleaning tank 6 disposed below the conveyor belt 1 ; clean water is added to the cleaning tank 6 ; a coating roller 7 is rotatably connected to 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 be driven to rotate inside the cleaning tank 6. After the electric-controlled nozzle 4 sprays the dye on 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, thereby improving the adhesion and coloring of the dye and reducing 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, facilitating the subsequent observation of the torn parts. After the coating roller 7 applies the dye, it can also prevent the dye droplets from dripping downwards and causing pollution to other equipment.

[0051] The clean water inside the cleaning tank 6 covers the bottom of the coating roller 7. Therefore, after the coating roller 7 is coated with the dye, part of the dye adhered to its surface moves to the bottom and can be cleaned by the water, thereby reducing the residual dye on the surface of the coating roller 7 and preventing the coating roller 7 from carrying the dye on the surface of the conveyor belt 1 and staining and marking other parts. The type of dye should preferably be a water-soluble paint, which is conducive to the cleaning effect of water and can be easily wiped off after the conveyor belt 1 is repaired later, thereby not affecting 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 transportation of materials. The present invention utilizes the contact between the coating roller 7 and water during rotation, which can leave a certain amount of moisture on the surface of the coating roller 7 and form a water film. When the coating roller 7 contacts the conveyor belt 1, the dust and other debris on the surface of the conveyor belt 1 can be adsorbed on the surface of the coating roller 7 under the action of the viscosity and tension of the water. When the coating roller 7 rotates to the bottom, the dust can be dispersed in the water, so that the conveyor belt 1 is cleaned on a daily basis by utilizing the rotation cycle process.

[0053] The cleaning tank 6 is internally connected with a linkage roller 8 for rotation; the linkage roller 8 is fixedly connected with a water-absorbing layer 9 on its surface, and the water-absorbing layer 9 is in contact with the surface of the coating roller 7. The material of the water-absorbing layer 9 can be a sponge, a water-absorbing cloth, a porous material, etc. During the rotation of the coating roller 7, the water-absorbing layer 9 and the linkage roller 8 can be driven 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 water, thereby reducing the water content on the surface of the coating roller 7 and preventing a large amount of water from being transmitted to the surface of the conveyor belt 1 and affecting its transportation work.

[0054] As a preferred embodiment of the present invention, a group of elastic diaphragms 10 are evenly distributed inside the water-absorbing 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 is connected to the turntable 12 through a pulley 13, a belt 14, and a pulley 2 15; a group of protrusions 16 are evenly distributed on the surface of the turntable 12;

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

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

[0057] During the rotation of the coating roller 7, the turntable 12 can be driven to rotate synchronously through the pulley 13, the belt 14, and the pulley 2 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 turns over the protrusion 16 and cooperates with the spring telescopic rod 17 to enable the pressure plate 11 to reciprocate left and right, thereby continuously squeezing the water absorption layer 9 to squeeze out the moisture inside it, ensuring its efficient water absorption work for the coating roller 7, and utilizing multiple elastic diaphragms 10 to divide the water absorption layer 9 into multiple units, so that when the water absorption layer 9 is squeezed by the pressure plate 11, the moisture between different units will not flow to each other, thereby improving the efficiency of squeezing out the moisture.

[0058] As a preferred embodiment of the present invention, an arc plate 19 is fixedly connected to the inside of 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 plate 19, and the flexible layer 20 is in contact with the surface of the coating roller 7. The arc plate 19 and the flexible layer 20 are both submerged in water, and as the coating roller 7 rotates continuously, the flexible layer 20 rubs and scrubs on the surface of the coating roller 7, which can improve the cleaning efficiency of the dye or dust on the surface.

[0059] A group of flexible protrusions 21 are evenly distributed on the upper side of the flexible layer 20; water holes 22 are arranged between adjacent flexible protrusions 21, and the water holes 22 penetrate the arc plate 19. By providing a plurality of flexible protrusions 21, a convex point rough structure is formed on the surface of the flexible layer 20, thereby increasing the brushing force on the coating roller 7, and impurities falling off the surface of the coating roller 7 during brushing can fall downward through the water holes 22, and the sewage generated during brushing and the clean water inside the cleaning tank 6 can also be exchanged through the water holes 22, ensuring a good cleaning effect on the coating roller 7.

[0060] As a preferred embodiment of the present invention, a group 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; and the magnetic block 23 and the movable ring 24 attract each other when they are close. When the magnetic block 23 rotates to the bottom with the coating roller 7, it generates attraction to 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, prompting the movable ring 24 to continuously reciprocate inside the water-permeable hole 22. On the one hand, the water-permeable hole 22 can be dredged to 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, speeding up the exchange between the impurities and sewage generated during scrubbing and the clean water below, so that clean water is constantly in contact with the coating roller 7.

[0061] As a preferred embodiment of the present invention, the inner wall surface of the water-permeable hole 22 is fixedly connected with an elastic hollow block 26; a guide hole 27 is provided between the top of the flexible protrusion 21 and the elastic hollow block 26; and a filter screen 28 is provided at the top of the guide hole 27. When the movable ring 24 moves upward, it can squeeze the elastic hollow block 26, squeeze the water inside the elastic hollow block 26 upward through the guide hole 27, and use the high-pressure small channel water flow to wash the coating roller 7, thereby 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 dredge the water-permeable hole 22 and promote the movement of water flow. When the movable ring 24 moves downward, the elastic hollow block 26 expands and recovers and absorbs water again. By providing the filter screen 28, the problem of impurities being sucked in can be prevented.

[0062] like Figure 7 As shown, a conveyor belt tear detection method according to the present invention adopts the above-mentioned conveyor belt tear detection device, and comprises the following steps:

[0063] S1: During the normal operation of the conveyor, the tearing condition of the conveyor belt 1 is monitored by using the detection component. When the visual camera 2 finds cracks at a local position 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 a dye on the corresponding tearing position for marking;

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

[0065] 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 coordinated cleaning effect of the flexible layer 20 and the water;

[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, thereby 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, the belt 14, and the pulley 2 15, so that the guide wheel 18 intermittently turns over the protrusion 16 and cooperates with the spring telescopic rod 17 to enable the pressing plate 11 to reciprocate left and right;

[0068] S6: The water absorbing layer 9 is continuously squeezed by the pressing plate 11 to squeeze out the water inside the water absorbing layer 9 to ensure that the water absorbing layer 9 can absorb water to the coating roller 7 efficiently.

[0069] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, 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 the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A conveyor belt tear detection device, characterized in that: It includes a detection component and a labeling and staining component; The detection component is used to observe cracks in the conveyor belt (1) in real time; the detection component comprises a visual camera (2), an image processing unit, a control unit and an alarm unit; The marking and dyeing component is used to mark the crack position of the conveyor belt (1); the marking and dyeing component comprises a storage box (3) and an electric-controlled nozzle (4); a dye is added inside the storage box (3); the electric-controlled nozzle (4) and the storage box (3) are connected via a conduit (5); The visual camera (2) and the electric-controlled nozzle (4) are both arranged below the conveyor belt (1); a plurality of the visual camera (2) and the electric-controlled nozzle (4) are arranged along the width direction of the conveyor belt (1) and correspond to each other.

2. A conveyor belt tear detection device according to claim 1, characterized in that: It also includes a roller coating assembly; the roller coating assembly is used to evenly coat the dye sprayed on the surface of the conveyor belt (1); The roller coating assembly comprises a cleaning tank (6) arranged below the conveyor belt (1); clean water is added inside the cleaning tank (6); 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).

3. A conveyor belt tear detection device according to claim 2, characterized in that: A linkage roller (8) is rotatably connected inside the cleaning tank (6); a water absorbing layer (9) is fixedly connected to the surface of the linkage roller (8), and the water absorbing layer (9) is in contact with the surface of the coating roller (7).

4. A conveyor belt tear detection device according to claim 3, characterized in that: A group of elastic diaphragms (10) are evenly distributed inside the water-absorbing 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 to each other through a pulley 1 (13), a belt (14), and a pulley 2 (15); a group of protrusions (16) are evenly distributed on the surface of the turntable (12); A spring telescopic rod (17) is fixedly connected between the pressing plate (11) and the inner wall of the cleaning tank (6); a guide wheel (18) is rotatably connected to the surface of the pressing plate (11) at a corresponding position of the rotating disk (12).

5. A conveyor belt tear detection device according to claim 4, characterized in that: An arc-shaped plate (19) is fixedly connected inside the cleaning tank (6) at a position below 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).

6. A conveyor belt tear detection device according to claim 5, characterized in that: A group of flexible protrusions (21) are evenly distributed on the upper side of the flexible layer (20); water-permeable holes (22) are arranged between adjacent flexible protrusions (21), and the water-permeable holes (22) penetrate the arc-shaped plate (19).

7. A conveyor belt tear detection device according to claim 6, characterized in that: A group 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); and the magnetic blocks (23) and the movable ring (24) attract each other when they are close to each other.

8. A conveyor belt tear detection device according to claim 7, characterized in that: 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); and a filter screen (28) is provided at the top of the guide hole (27).

9. A conveyor belt tear detection method, the method using the conveyor belt tear detection device according to claim 8, characterized in that: The following steps are involved: S1: During the normal operation of the conveyor, the tearing condition of the conveyor belt (1) is monitored by using the detection component. When the visual camera (2) finds cracks at a local position of the conveyor belt (1), the control unit sends an alarm signal to the outside through the alarm unit, and controls the electronically controlled spray head (4) to spray a dye on the corresponding tearing position for marking; S2: The dust on the surface of the conveyor belt (1) is absorbed by the water film on the surface of the coating roller (7), and after the dye is sprayed, the coating roller (7) can evenly apply the dye to the cracks; S3: When the coating roller (7) rotates into the water, the coordinated cleaning action of the flexible layer (20) and the water can promote the rapid shedding of the dye or dust adhering to the surface of the coating roller (7).

10. A conveyor belt tear detection method according to claim 9, characterized in that: The method further comprises 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, thereby reducing the residual water on the surface of the coating roller (7); S5: During the rotation of the coating roller (7), the rotating disc (12) is driven to rotate synchronously through the pulley 1 (13), the belt (14) and the pulley 2 (15), so that the guide wheel (18) intermittently turns over the protrusion (16) and cooperates with the spring telescopic rod (17), so that the pressing plate (11) can reciprocate left and right; S6: The water absorbing layer (9) is continuously pressed by the pressing plate (11) to squeeze out the water inside the layer, thereby ensuring that the water absorbing layer (9) can efficiently absorb water from the coating roller (7).

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