Self-cleaning belt tearing detection device

Abstract

The invention discloses a self-cleaning type belt tearing detection device, belongs to the technical field of belt tearing detection, and aims to solve the problems that in order to ensure the cleanliness of a detection lens, a mechanical scraper is often adopted to directly contact with the lens, so that a lens coating film is possibly scratched to cause reduction of optical performance, or an air blowing mode is directly adopted to remove dust; the device comprises a conveying frame and conveying rollers installed at the two ends of the upper portion of the conveying frame, dynamic replacement is achieved through a replacement mechanism, the imaging quality of visual detection is guaranteed, the recognition precision of a detection head on the tearing gap of the conveying belt is guaranteed, and the detection efficiency is improved. The problems of lens coating film scratching, surface abrasion and optical performance reduction caused by direct contact of a mechanical scraping piece with a detection head lens are avoided, and meanwhile, the cleanliness of the detection lens can be ensured after cleaning and replacement even if dust with moisture and certain adhesive force in the air is encountered.

Description

Technical Field

[0001] This invention relates to the field of belt tear detection technology, specifically a self-cleaning belt tear detection device. Background Technology

[0002] Belt scratches and tears are a common type of belt damage on belt conveyors. Many factors can cause these damages, such as impacts from large materials, scratches from sharp objects, or scratches from embedded metal objects. If a belt tear is not repaired promptly, the crack will widen and may even lead to belt failure. Therefore, timely monitoring and assessment of belt tear conditions are crucial.

[0003] Current belt tear detection devices often use mechanical scrapers to directly contact the lens to ensure its cleanliness. This can cause scratches on the lens coating and surface wear, leading to a decline in optical performance over time. Additionally, the scraper's movement can obstruct the lens, affecting detection. Alternatively, air blowing can be used to remove dust from the lens, which can prevent the removal of moist and sticky dust. Furthermore, if dirt or impurities adhere to the belt surface and cause bulges, the dirt can block the tear cracks, resulting in inaccurate tear detection.

[0004] To address the above issues, a self-cleaning belt tear detection device is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a self-cleaning belt tear detection device. By using this device, the problems mentioned above are solved: in order to ensure the cleanliness of the detection lens, mechanical scrapers are often used to directly contact the lens, which may cause scratches on the lens coating and reduce optical performance; the scraper movement may obstruct the lens and affect the detection; or air blowing is used to remove dust, which makes it difficult to effectively blow off moist and sticky dust.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a self-cleaning belt tear detection device, comprising a conveyor frame and conveyor rollers installed at both ends above the conveyor frame, wherein a conveyor belt is connected to the surface of the conveyor rollers, and tension rollers are installed on both sides of the bottom of the conveyor belt, characterized in that: a mounting frame is fixed on the upper surface of the conveyor frame, and a detection head is fixed on the upper end of the mounting frame, and a replacement mechanism is installed on the upper outer end of the detection head; A fixing frame is fixed in the middle of the surface of the conveyor frame, and a water-passing mechanism is fixed in the middle of the front side of the fixing frame. A cleaning mechanism is installed on the inner side of the water-passing mechanism, and a drying mechanism is provided on the outer side of the water-passing mechanism. A contact mechanism is fixed above one side of the water-passing mechanism, and the upper surface of the contact mechanism is in contact with the surface of the conveyor belt. A cleaning mechanism is installed on one side of the cleaning mechanism.

[0007] Furthermore, the replacement mechanism includes a mounting cover installed above the outside of the detection head. Two sets of mounting covers are symmetrically arranged about the detection head, and a fixing wire is installed on the front side of the mounting cover. A conveying roller is rotatably installed in the middle of the inner side of both sets of mounting covers. A mounting base is fixed on the outer surface of one set of mounting covers, and a micro motor is fixed on the surface of the mounting base. The output end of the micro motor is rotatably connected to one set of conveying rollers.

[0008] Furthermore, a support roller 1 is rotatably mounted on one side of the inner upper part of both sets of mounting covers, and a support roller 2 is mounted on the other side of the inner upper part of the mounting cover. A conveying film is provided on the outer surface of the conveying roller.

[0009] Furthermore, a wiping roller is provided on the lower side of a set of conveying rollers, and the wiping roller is rotatably connected to the mounting cover, and the outer surface of the wiping roller is in close contact with the surface of the conveying film; The wiping roller is provided with wiper baffles on both sides, and the wiper baffles are fixedly connected to the mounting cover. A water guide pipe is connected to one side of a set of mounting covers, and the front end of the water guide pipe is connected to a water distribution pipe. Several water spray heads are installed on the front surface of the water distribution pipe, and a water outlet pipe is connected to the bottom of a set of mounting covers. One set of mounting covers has a wiping seat fixed inside one side, and the front surface of the wiping seat is in contact with the conveying film. Both sets of mounting covers have a partition plate fixed inside the upper side. Both sets of mounting covers have an air guide pipe connected to the upper rear side. Both sets of mounting covers have an air outlet on the upper inner side.

[0010] Furthermore, the water supply mechanism includes a water collection hood fixed on a fixed frame, and a water supply pipe is provided on one side below the water collection hood, and several solenoid valve pipes are connected in parallel above the water supply pipe. A sewage pipe is connected to one side below the water collection hood.

[0011] Furthermore, the cleaning mechanism includes several fixed cylinders respectively connected above the solenoid valve pipe, and the fixed cylinders are fixed inside the water collection hood. Each set of fixed cylinders has a sliding fitting seat in the middle of its inner side, and the outer surface of the fitting seat is in contact with the inner surface of the fixed cylinder. A scraper is fixed above the fitting seat, and several sets of water passages are provided through the middle of the inner side of the scraper, and a water spray nozzle is provided at the top of each set of water passages.

[0012] Furthermore, the contact mechanism includes a support frame fixed to one side of the water collection hood, and a pressure sensor is installed at the upper end of the support frame, and a contact roller is installed at the upper end of the pressure sensor.

[0013] Furthermore, spring 1 is fixed on both sides of the upper part of the fitting seat, and two sets of movable discs are provided on both sides of the lower surface of the fitting seat. Spring 2 is fixed on the upper part of each set of movable discs, and the movable discs are elastically connected to the fitting seat through spring 2. Lifting rod is fixed in the middle of the upper part of each set of movable discs, and the lifting rod is slidably connected to the scraper. Inclined plate is fixed on the top of each set of lifting rods, and a push rod is provided on one side of the upper part of each set of inclined plates. A reduced diameter half tube is fixed at one end of each set of push rods.

[0014] Furthermore, the cleaning mechanism includes a sliding rod fixed above one side of the fitting seat, the sliding rod being slidably connected to the fixed cylinder, and a brush plate being fixed to the top of the sliding rod.

[0015] Furthermore, the drying mechanism includes a vent pipe fixed to one side of the water collection hood, the vent pipe being connected to the air guide pipe, and an air distribution pipe being connected above the vent pipe, with several air jets installed at the top of the air distribution pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The dynamic replacement achieved by the replacement mechanism in this invention helps to ensure the imaging quality of visual inspection and ensure the accuracy of the inspection head in identifying conveyor belt tear gaps. Moreover, the dynamic replacement achieved by the replacement mechanism avoids the problem that mechanical scrapers may directly contact the inspection head lens, which could cause scratches on the lens coating, surface wear, and long-term use would lead to a decline in optical performance. At the same time, the dynamic replacement and automatic cleaning of the replacement mechanism can ensure the cleanliness of the inspection lens even when it encounters humid dust with a certain degree of adhesion in the air, after cleaning and replacement.

[0017] 2. This invention can perform zoned inspection of the conveyor belt and achieve zoned rinsing of the conveyor belt surface to ensure the cleanliness of the conveyor belt surface. This helps to ensure the service life of the conveyor belt and also improves the effect of the detection head on conveyor belt tear detection. At the same time, zoned rinsing can reduce the waste of water used by simultaneous rinsing.

[0018] 3. This invention improves the scouring effect of the scraper and water spray nozzle on the surface of the conveyor belt and cracks, thereby improving the removal effect of attached protruding dirt and impurities. It avoids the problem that thick dirt is difficult to clean or that dirt can clog cracks, affecting the detection head's inaccurate identification of conveyor belt tears. At the same time, the upward movement of the scraper to fit with the conveyor belt is only achieved by enhanced water flow when encountering thick dirt. This reduces the need for separate driving power and also avoids the problem of the scraper continuously fitting with the conveyor belt, which can easily cause wear on the conveyor belt surface. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the external three-dimensional structure of the detection head of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the mounting cover of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 For the present invention Figure 2 Enlarged structural diagram at point B; Figure 6 This is a schematic diagram of the three-dimensional structure of the water collection cover of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the three-dimensional structure viewed from below; Figure 8 This is a schematic diagram of the three-dimensional structure of the contact roller of the present invention; Figure 9 This is a cross-sectional three-dimensional structural diagram of the fixed cylinder of the present invention; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point C.

[0020] In the diagram: 1. Conveyor frame; 2. Conveyor roller; 3. Conveyor belt; 4. Tensioner roller; 5. Mounting frame; 6. Detection head; 7. Replacement mechanism; 71. Mounting cover; 72. Fixing wire; 73. Transmission roller; 74. Micro motor; 75. Conveyor membrane; 76. Support roller one; 77. Support roller two; 78. Mounting seat; 79. Wiping roller; 710. Squeegee baffle; 711. Water guide pipe; 712. Water distribution pipe; 713. Spray head; 714. Water outlet pipe; 715. Wiping seat; 716. Divider plate; 717. Air guide pipe; 718. Air outlet; 8. Fixing frame; 9. Water supply mechanism; 91. Water collection cover; 92. Water supply pipe; 93. Solenoid valve pipe; 94. Sewage pipe; 10. Contact mechanism; 101. Support frame; 102. Contact roller; 103. Pressure sensor; 20. Cleaning mechanism; 201. Fixed cylinder; 202. Adhesive seat; 203. Scraper; 204. Water passage; 205. Spring one; 206. Movable disc; 207. Spring two; 208. Lifting rod; 209. Inclined plate; 2010. Push rod; 2011. Reduced diameter half-pipe; 2012. Spray nozzle; 30. Cleaning mechanism; 301. Sliding rod; 302. Brush plate; 40. Drying mechanism; 401. Air pipe; 402. Air distribution pipe; 403. Jet nozzle. Detailed Implementation

[0021] 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.

[0022] To ensure the cleanliness of the inspection lens, mechanical scrapers are often used in direct contact with the lens. This can scratch the lens coating, leading to a decrease in optical performance. Furthermore, the movement of the scraper can obstruct the lens, affecting inspection. Alternatively, air blowing can be used for dust removal, but this presents a technical problem: moist and sticky dust cannot be effectively blown off. Figures 1-5 As shown, the following preferred technical solutions are provided: A self-cleaning belt tear detection device includes a conveyor frame 1 and conveyor rollers 2 installed at both ends above the conveyor frame 1. A conveyor belt 3 is driven to the surface of the conveyor rollers 2, and tension rollers 4 are installed on both sides of the bottom of the conveyor belt 3. The tension rollers 4 can support the conveyor belt 3 to maintain the tension of the conveyor belt 3. A power motor installed on the conveyor frame 1 is provided at the input end of the conveyor rollers 2. Thus, the conveyor frame 1, conveyor rollers 2 and conveyor belt 3 constitute an existing conveying device based on a belt. The specific conveying principle and structure will not be described in detail in this case. A mounting frame 5 is fixed on the upper surface of the conveyor frame 1, and a detection head 6 is fixed at the upper end of the mounting frame 5. The detection head 6 is perpendicular to the surface of the conveyor belt 3. The detection head 6 is an existing optical vision inspection camera. With the existing controller, it can detect and identify tears and cracks on the surface of the conveyor belt 3. A set of mounting frames 5 and detection heads 6 are set at the front, middle and rear sections of the bottom of the conveyor belt 3, so that the conveyor belt 3 can be inspected three times to ensure the accuracy of the inspection.

[0023] A replacement mechanism 7 is installed on the upper outer part of the detection head 6. The middle part of the replacement mechanism 7 is transparent and fits against the upper outer side of the detection lens of the detection head 6, creating an isolation effect between the detection lens and the external environment. Furthermore, the transparent middle part of the replacement mechanism 7 can be dynamically moved and adjusted on the upper part of the detection lens of the detection head 6. During this movement and adjustment, the internal parts of the replacement mechanism 7 undergo automatic cleaning, ensuring that a new transparent part is always present on the outside of the lens of the detection head 6. This prevents contaminants from directly adhering to the surface of the detection lens, thus avoiding problems such as abnormal light scattering and refraction. The dynamic adjustment achieved by the replacement mechanism 7... Replacement helps ensure the imaging quality of visual inspection and guarantees the recognition accuracy of the tear gap of the conveyor belt 3 by the inspection head 6. The dynamic replacement achieved by the replacement mechanism 7 avoids the problem of mechanical scrapers directly contacting the lens of the inspection head 6, which may cause scratches on the lens coating, surface wear, and long-term use leading to a decline in optical performance. At the same time, the dynamic replacement and automatic cleaning of the replacement mechanism 7 can ensure the cleanliness of the lens of the inspection head 6 even when encountering humid and sticky dust in the air. This avoids the problem of directly using air blowing to remove dust from the inspection head 6, which makes it difficult to effectively blow off humid and sticky dust.

[0024] A fixing frame 8 is fixed to the center of the surface of the conveyor frame 1, and a water-passing mechanism 9 is fixed to the center of the front side of the fixing frame 8. A cleaning mechanism 20 is installed on one side of the inside of the water-passing mechanism 9, and a drying mechanism 40 is provided on the outside of the water-passing mechanism 9. The cleaning mechanism 20 is connected to the water-passing mechanism 9. The input end of the water-passing mechanism 9 is connected to a water supply pump outside the device, which can spray the incoming water out from the upper surface of the cleaning mechanism 20. The upper surface of the cleaning mechanism 20 faces the surface of the conveyor belt 3, and the water outlet of the cleaning mechanism 20 is embedded in the upper surface of the cleaning mechanism 20. When the conveyor belt 3 is in normal conveying operation, the upper surface of the cleaning mechanism 20 is not in contact with the conveyor belt. When the surface of the conveyor belt 3 is in contact with the water, the water flow mechanism 9 can spray water from the cleaning mechanism 20 to rinse the surface of the conveyor belt 3, so as to ensure the cleanliness of the surface of the conveyor belt 3. This helps to ensure the service life of the conveyor belt 3 and also improves the tear detection effect of the detection head 6 on the conveyor belt 3. The drying mechanism 40 is connected to the hot air blower outside the device, and the upper surface of the drying mechanism 40 faces the surface of the conveyor belt 3. Hot air can be blown onto the surface of the conveyor belt 3. So after the conveyor belt 3 is rinsed, as the conveyor belt 3 is conveyed, the rinsed surface can be dried by the hot air sprayed from the drying mechanism 40, thus ensuring that the conveyor belt 3 is dry and clean.

[0025] A contact mechanism 10 is fixed above one side of the water-passing mechanism 9, and the upper surface of the contact mechanism 10 is in contact with the surface of the conveyor belt 3. A cleaning mechanism 30 is installed on one side of the cleaning mechanism 20. Multiple sets of contact mechanisms 10 are provided at the bottom of the conveyor belt 3. During the working conveying process of the conveyor belt 3, if the surface of the conveyor belt 3 is covered with dirt and impurities, causing a protrusion, the pressure between the conveyor belt 3 and the contact mechanism 10 will increase when the protrusion passes through the contact mechanism 10. At this time, the contact mechanism 10 will identify the increased pressure and, in conjunction with the controller, will increase the power of water supply to the water-passing mechanism 9, thereby increasing the water pressure sprayed from the cleaning mechanism 20 and improving the washing effect of the cleaning mechanism 20 on the conveyor belt 3.

[0026] Simultaneously, under the increased water pressure, the upper end of the cleaning mechanism 20 moves upward, and the upper end of the cleaning mechanism 20 also drives the cleaning mechanism 30 to move upward, allowing the top surfaces of the cleaning mechanism 20 and the cleaning mechanism 30 to adhere to the surface of the conveyor belt 3. During conveying, the adhesion of the cleaning mechanism 20 and the cleaning mechanism 30 can achieve a scraping effect on the surface of the conveyor belt 3. Combined with the water outlet embedded in the top of the cleaning mechanism 20, it can achieve a simultaneous scraping and rinsing effect, thereby improving the removal effect of attached protruding dirt and impurities, and preventing the difficulty in cleaning thick layers of dirt. The blockage caused by soil in the cracks affects the accuracy of the detection head 6 in identifying tears in the conveyor belt 3. At the same time, timely cleaning of thick soil also helps to avoid the problem of soil jamming causing the conveyor belt 3 to be easily torn and damaged, thus helping to ensure the service life of the conveyor belt 3. In addition, the upward movement of the cleaning mechanism 20 and the removal mechanism 30 to fit with the conveyor belt 3 is only achieved by enhanced water flow when encountering thick soil. This reduces the need for separate driving power and also avoids the problem of the cleaning mechanism 20 and the removal mechanism 30 continuously fitting with the conveyor belt 3, which can easily cause wear on the surface of the conveyor belt 3.

[0027] The replacement mechanism 7 includes a mounting cover 71 installed above the outside of the detection head 6. Two sets of mounting covers 71 are symmetrically arranged about the detection head 6, and a fixing wire 72 is installed on the front side of the mounting cover 71. The mounting cover 71 is fixed to the outside of the detection head 6 by the fixing wire 72. A conveyor roller 73 is rotatably installed in the middle of the inner side of each set of mounting covers 71. A mounting base 78 is fixed on the outer surface of one set of mounting covers 71, and a micro motor 74 is fixed on the surface of the mounting base 78. The output end of the micro motor 74 is rotatably connected to one set of conveyor rollers 73. The micro motor 74 can drive one set of conveyor rollers 73 to rotate counterclockwise inside the mounting cover 71.

[0028] Support roller 76 is rotatably mounted on one side of the upper interior of each of the two sets of mounting covers 71, and support roller 77 is mounted on the other side of the upper interior of each mounting cover 71. A conveying film 75 is provided on the outer surface of the conveying roller 73. The conveying film 75 is a flexible and transparent film made of thermoplastic polyurethane, which gives the conveying film 75 flexibility, transparency, and wear resistance. The conveying film 75 is supported by the two sets of support rollers 76 and support roller 77 on both sides of the detection head 6. When the micro motor 74 drives one set of conveying rollers 73 to rotate counterclockwise, the conveying film 75 can be conveyed between the two sets of conveying rollers 73. This achieves the effect of dynamically conveying the conveyor film 75 on the outer surface of the detection head 6. The height of the first support roller 76 is higher than that of the second support roller 77, and the height difference is slightly greater than the thickness of the two layers of conveyor film 75. The lower surface of the conveyor film 75 supported and conveyed by the second support roller 77 is attached to the outer surface of the detection head 6, while the lower surface of the conveyor film 75 supported and conveyed by the first support roller 76 is infinitely close to the upper surface of the conveyor film 75 supported and conveyed by the second support roller 77. This ensures that when the transparent conveyor film 75 is dynamically conveyed on the outer surface of the detection head 6, no dust will enter the detection head 6 and contaminate the detection lens.

[0029] A wiping roller 79 is provided on the lower side of a set of conveyor rollers 73, and the wiping roller 79 is rotatably connected to the mounting cover 71. The outer surface of the wiping roller 79 is in close contact with the surface of the conveying film 75. The outer surface of the wiping roller 79 is provided with sponge. When the conveying film 75 moves counterclockwise, the friction between the conveying film 75 and the wiping roller 79 will enable the conveying film 75 to drive the wiping roller 79 to rotate clockwise. This allows the wiping roller 79 to wipe the conveying film 75 in a rotating manner. At the same time, due to the existence of friction... The wiping roller 79 and the conveyor film 75 will not rotate synchronously, thus ensuring the wiping effect of the wiping roller 79. When the conveyor film 75 is dynamically conveyed on the outer surface of the detection head 6, the wiping roller 79 can wipe away the dust and impurities attached to the surface of the conveyor film 75, ensuring that the outer surface of the detection head 6 always has a clean conveyor film 75. This ensures that the detection head 6 always has a clean irradiation surface for tear detection of the conveyor belt 3. At the same time, the dynamic movement of the conveyor film 75 will not obstruct the detection lens, thus ensuring the continuous and effective detection of the detection head 6.

[0030] Wiping roller 79 is provided with wiper baffles 710 on both sides, and the wiper baffles 710 are fixedly connected to the mounting cover 71. The wiping roller 79 is tightly fitted to one side of the left wiper baffle 710. A water guide pipe 711 is connected to one side of a set of mounting covers 71, and the front end of the water guide pipe 711 is connected to a water distribution pipe 712. Several water spray heads 713 are installed on the front surface of the water distribution pipe 712. A water outlet pipe 714 is connected to the bottom of a set of mounting covers 71. Water flows through the water guide pipe 711 from the outside, and the water can be distributed by the water distribution pipe 712 and sprayed from the water spray heads 713 onto the wiping roller. The surface of the wiping roller 79 is rinsed to remove dust and dust, ensuring a long-lasting and effective cleaning effect on the conveyor film 75. Simultaneously, the tight fit of the squeegee 710 automatically squeezes out mud and excess water adsorbed on the surface of the wiping roller 79 as it rotates clockwise. This ensures a clean finish while preventing excessive moisture from adhering to the surface of the conveyor film 75. The rinsed water is discharged from the outlet pipe 714.

[0031] A wiping seat 715 is fixed to one side of the interior of one set of mounting covers 71, and the front surface of the wiping seat 715 is in contact with the conveying film 75. The front side of the wiping seat 715 is made of sponge material. After the conveying film 75 is wiped by the wiping roller 79, the wiping seat 715 can be used to perform a secondary wiping treatment on the conveying film 75, thereby further ensuring the cleanliness of the conveying film 75 and also helping to remove the moisture adhering to the surface of the conveying film 75 after wiping by the wiping roller 79. A partition plate 716 is fixed to the upper side of the interior of both sets of mounting covers 71. The conveying film 75 passes through the partition plate 716. The partition plate 716 can divide the space of the mounting cover 71 into upper and lower parts. Air guide pipes 717 are connected to the upper rear side of each mounting cover 71, and air outlets 718 are opened on the inner upper side of both sets of mounting covers 71. The air guide pipes 717 are connected to the hot air pipes in the drying mechanism 40, which can introduce hot air into the space above the mounting covers 71 separated by the partition plate 716. When the conveying film 75 passes through the space above the mounting cover 71, it can be dried by using hot air. Finally, the hot air can be blown from the air outlets 718 onto the surface of the conveying film 75, thereby keeping the conveying film 75 dry and preventing moisture from affecting the detection head 6. At the same time, the airflow can also blow away the dust floating on the surface of the conveying film 75 and around it.

[0032] The dynamic replacement achieved by the transparent conveyor film 75 helps ensure the imaging quality of visual inspection and guarantees the accuracy of the inspection head 6 in identifying the tear gap of the conveyor belt 3. Furthermore, the dynamic replacement achieved by the conveyor film 75 avoids the problem of mechanical scrapers directly contacting the lens of the inspection head 6, which may cause scratches on the lens coating, surface wear, and long-term use leading to a decline in optical performance. At the same time, the dynamic replacement and automatic wiping and cleaning of the conveyor film 75 can keep the lens of the inspection head 6 clean even when encountering humid and sticky dust in the air, avoiding the problem of humid and sticky dust not being effectively blown off when directly using air to remove dust from the inspection head 6.

[0033] To ensure belt cleanliness, continuous scraping or high-powered rinsing is often used, which can easily damage the belt and waste water. Figure 1 as well as Figures 6-9 As shown, the following preferred technical solutions are provided: The water supply mechanism 9 includes a water collection cover 91 fixed on a fixed frame 8, and a water supply pipe 92 is provided on one side below the water collection cover 91. The input end of the water supply pipe 92 is connected to a water pump outside the device, and several solenoid valve pipes 93 are connected in parallel above the water supply pipe 92. A sewage pipe 94 is connected to one side below the water collection cover 91.

[0034] The cleaning mechanism 20 includes several fixed cylinders 201 connected above the solenoid valve pipe 93, and the fixed cylinders 201 are fixed inside the water collection cover 91. A fitting seat 202 is slidably disposed in the middle of the inner side of each fixed cylinder 201, and the outer surface of the fitting seat 202 is in contact with the inner surface of the fixed cylinder 201. A scraper 203 is fixed above the fitting seat 202, and the scraper 203 is disposed through the upper part of the fixed cylinder 201. Several sets of water passages 204 are disposed through the middle of the inner side of the scraper 203, and a water nozzle 2012 is disposed at the top of each set of water passages 204. The 2012 is embedded on the upper surface of the scraper 203. When the conveyor belt 3 is in normal operation, the upper surface of the scraper 203 is not in contact with the surface of the conveyor belt 3. At this time, water can be sprayed from the water nozzle 2012 through the water supply pipe 92 and the solenoid valve pipe 93 to rinse the surface of the conveyor belt 3, so as to ensure the cleanliness of the surface of the conveyor belt 3. This helps to ensure the service life of the conveyor belt 3 and also improves the effect of the detection head 6 on the tear detection of the conveyor belt 3. The rinsing wastewater falls into the water collection hood 91 set at the lower end and is finally discharged through the sewage pipe 94.

[0035] The contact mechanism 10 includes a support frame 101 fixed to one side of the water collection hood 91, and a pressure sensor 103 is installed on the upper end of the support frame 101. A contact roller 102 is installed on the upper end of the pressure sensor 103. During the conveyor belt 3's operation, if dirt or impurities adhere to the surface of the conveyor belt 3, causing protrusions, the pressure between the conveyor belt 3 and the contact roller 102 will increase when the protrusions pass over the contact roller 102. At this time, the pressure sensor 103 will identify the increased pressure and, in conjunction with the controller, will increase the power of the water supply to the water supply pipe 92, thereby increasing the water pressure sprayed from the spray nozzle 2012, thus improving the washing effect on the conveyor belt 3. Simultaneously, the support frame 101, the contact roller 102, and the pressure sensor 102 all work together to achieve the desired effect. Multiple sets of sensors 103 are closely arranged on the water collection cover 91, enabling the multiple sets of contact rollers 102 and pressure sensors 103 to perform zoned detection of the vertical direction of the conveyor belt 3. In conjunction with multiple sets of parallel solenoid valve pipes 93, water flow is individually controlled in multiple sets of fixed cylinders 201. With the cooperation of the controller, when a certain set of contact rollers 102 is pressurized, the corresponding rear solenoid valve pipe 93 can be used to increase the water flow in the fixed cylinder 201, achieving enhanced rinsing only on the surface of the conveyor belt 3 where the pressure is detected. This is beneficial for achieving precise rinsing and reducing the waste of water used by synchronous rinsing. At the same time, when the pressure of the pressure sensor 103 disappears, the controller controls the water pressure entering the water supply pipe 92 to return to normal.

[0036] To address the technical issue of inaccurate tear detection caused by dirt and impurities accumulating on the belt surface, which can clog tear cracks, such as bulges, mud can be used to prevent tear identification. Figure 1 as well as Figures 6-10 As shown, the following preferred technical solutions are provided: Springs 205 are fixed to the upper sides of the bonding seat 202, and two sets of movable discs 206 are provided on both sides of the lower surface of the bonding seat 202. Springs 207 are fixed above each set of movable discs 206, and the movable discs 206 are elastically connected to the bonding seat 202 via springs 207. Lifting rods 208 are fixed to the upper center of each set of movable discs 206, and the lifting rods 208 are slidably connected to the scraper 203. Inclined plates 209 are fixed to the top of each set of lifting rods 208, and pushing rods 2010 are provided on one side above each set of inclined plates 209. One end of each 2010 is fixed with a reduced-diameter half-pipe 2011. Under the increased water pressure, the compression spring 205 of the contact seat 202 and scraper 203 will move upward, allowing the top surface of the scraper 203 to contact the surface of the conveyor belt 3. This can achieve the effect of scraping the surface of the conveyor belt 3 when it is being conveyed. With the embedded water spray nozzle 2012, the effect of scraping and rinsing can be achieved at the same time. At the same time, when the pressure of the pressure sensor 103 disappears and the water pressure of the water supply pipe 92 returns to normal, the contact seat 202 and scraper 203 will reset under the push of the spring 205.

[0037] Simultaneously, as the water pressure continuously increases, the pressurized water squeezes the movable disc 206, compressing the spring 207, which in turn drives the lifting rod 208 and the inclined plate 209 to move upward. This causes the inclined plate 209 to squeeze the push rod 2010, resulting in the opposing reduced-diameter half-pipes 2011 engaging. After engagement, the inner diameter of the reduced-diameter half-pipes 2011 is smaller than the inner diameter of the spray nozzle 2012. This reduced inner diameter strengthens the water flow when spraying from the spray nozzle 2012, improving the scouring effect of the spray nozzle 2012 on the surface of the conveyor belt 3 and cracks. This enhances the removal of attached protruding mud and impurities, preventing the accumulation of dirt and impurities. Thick layers of mud are difficult to clean, or mud can clog cracks, affecting the accuracy of the detection head 6 in identifying tears in the conveyor belt 3. Timely cleaning of thick mud also helps to prevent mud from getting stuck and causing the conveyor belt 3 to tear and be damaged, thus helping to ensure the service life of the conveyor belt 3. At the same time, the upward movement of the scraper 203 and its contact with the conveyor belt 3 are only achieved by enhanced water flow when encountering thick mud. This reduces the need for separate driving power and also avoids the scraper 203 continuously contacting the conveyor belt 3, which can easily cause wear on the surface of the conveyor belt 3.

[0038] The cleaning mechanism 30 includes a sliding rod 301 fixed above one side of the bonding seat 202. The sliding rod 301 is slidably connected to the fixed cylinder 201, and a brush plate 302 is fixed to the top of the sliding rod 301. When the bonding seat 202 moves upward, it will simultaneously drive the sliding rod 301 and the brush plate 302 to move upward, so that the brush plate 302 is attached to the surface of the conveyor belt 3, allowing the brush plate 302 to extend into any possible tear gaps, thereby improving the cleaning effect of dirt in the gaps and making the detection head 6 more accurate in identifying tears in the conveyor belt 3.

[0039] The drying mechanism 40 includes a vent pipe 401 fixed to one side of the water collection hood 91. The inlet end of the vent pipe 401 is connected to a hot air blower outside the device, which can vent hot air. The vent pipe 401 is connected to the air guide pipe 717, and the vent pipe 401 can vent hot air into the air guide pipe 717. The top of the vent pipe 401 is connected to an air distribution pipe 402. Several air jets 403 are installed on the top of the air distribution pipe 402. Hot air can be blown onto the surface of the conveyor belt 3 by the air jets 403. After the conveyor belt 3 is washed, the washed surface can be dried by the hot air sprayed from the drying mechanism 40 as the conveyor belt 3 is conveyed, thereby ensuring that the conveyor belt 3 is dry and clean.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning belt tear detection device, comprising a conveyor frame (1) and conveyor rollers (2) mounted on both ends above the conveyor frame (1), wherein a conveyor belt (3) is drively connected to the surface of the conveyor rollers (2), and tension rollers (4) are mounted on both sides of the bottom of the conveyor belt (3), characterized in that: The upper surface of the conveyor (1) is fixed with a mounting frame (5), and the upper end of the mounting frame (5) is fixed with a detection head (6). The upper outer end of the detection head (6) is equipped with a replacement mechanism (7). A fixing frame (8) is fixed in the middle of the surface of the conveyor frame (1), and a water-passing mechanism (9) is fixed in the middle of the front side of the fixing frame (8). A cleaning mechanism (20) is installed on the inner side of the water-passing mechanism (9), and a drying mechanism (40) is provided on the outer side of the water-passing mechanism (9). A contact mechanism (10) is fixed above one side of the water-passing mechanism (9), and the upper surface of the contact mechanism (10) is in contact with the surface of the conveyor belt (3). A cleaning mechanism (30) is installed on one side of the cleaning mechanism (20).

2. The self-cleaning belt tear detection device according to claim 1, characterized in that: The replacement mechanism (7) includes a mounting cover (71) installed above the outside of the detection head (6). Two sets of mounting covers (71) are symmetrically arranged about the detection head (6), and a fixing wire (72) is installed on the front side of the mounting cover (71). A conveying roller (73) is rotatably installed in the middle of the inner side of both sets of mounting covers (71). A mounting seat (78) is fixed on the outer surface of one set of mounting covers (71), and a micro motor (74) is fixed on the surface of the mounting seat (78). The output end of the micro motor (74) is rotatably connected to a set of conveying rollers (73).

3. The self-cleaning belt tear detection device according to claim 2, characterized in that: Both sets of mounting covers (71) have a support roller 1 (76) rotatably mounted on one side of the inner upper part, and a support roller 2 (77) is mounted on the other side of the inner upper part of the mounting cover (71). The outer surface of the conveying roller (73) is provided with a conveying film (75).

4. The self-cleaning belt tear detection device according to claim 3, characterized in that: A wiping roller (79) is provided on the lower side of a set of conveying rollers (73), and the wiping roller (79) is rotatably connected to the mounting cover (71), and the outer surface of the wiping roller (79) is in close contact with the surface of the conveying film (75); The wiping roller (79) is provided with wiper baffles (710) on both sides, and the wiper baffles (710) are fixedly connected to the mounting cover (71). A water guide pipe (711) is connected to one side of a set of mounting covers (71), and the front end of the water guide pipe (711) is connected to a water distribution pipe (712). Several spray nozzles (713) are installed on the front surface of the water distribution pipe (712). A water outlet pipe (714) is connected to the bottom of a set of mounting covers (71). One set of mounting covers (71) has a wiping seat (715) fixed on one side inside, and the front surface of the wiping seat (715) is in contact with the conveying membrane (75). Both sets of mounting covers (71) have a partition plate (716) fixed on the upper inside. Both sets of mounting covers (71) have an air guide pipe (717) connected to the upper rear side. Both sets of mounting covers (71) have an air outlet (718) on the inner upper side.

5. The self-cleaning belt tear detection device according to claim 4, characterized in that: The water supply mechanism (9) includes a water collection cover (91) fixed on a fixed frame (8), and a water supply pipe (92) is provided on one side below the water collection cover (91), and several solenoid valve pipes (93) are connected in parallel above the water supply pipe (92). A sewage pipe (94) is connected to one side below the water collection cover (91).

6. The self-cleaning belt tear detection device according to claim 5, characterized in that: The cleaning mechanism (20) includes several fixed cylinders (201) connected above the solenoid valve pipe (93), and the fixed cylinders (201) are fixed inside the water collection cover (91). Each set of fixed cylinders (201) has a sliding fitting seat (202) in the middle of its inner side, and the outer surface of the fitting seat (202) is in contact with the inner surface of the fixed cylinder (201). A scraper (203) is fixed above the fitting seat (202), and several sets of water passages (204) are provided through the middle of the inner side of the scraper (203), and a water spray nozzle (2012) is provided at the top of each set of water passages (204).

7. The self-cleaning belt tear detection device according to claim 6, characterized in that: The contact mechanism (10) includes a support frame (101) fixed to one side of the water collection cover (91), and a pressure sensor (103) is installed on the upper end of the support frame (101), and a contact roller (102) is installed on the upper end of the pressure sensor (103).

8. The self-cleaning belt tear detection device according to claim 7, characterized in that: Spring 1 (205) is fixed on both sides of the upper part of the bonding seat (202), and two sets of movable discs (206) are provided on both sides of the lower surface of the bonding seat (202). Spring 2 (207) is fixed on the upper part of each set of movable discs (206), and the movable discs (206) are elastically connected to the bonding seat (202) through spring 2 (207). Lifting rod (208) is fixed in the middle of the upper part of each set of movable discs (206), and the lifting rod (208) is slidably connected to the scraper (203). Inclined plate (209) is fixed on the top of each set of lifting rods (208), and a push rod (2010) is provided on one side of the upper part of each set of inclined plates (209). A reduced diameter half tube (2011) is fixed at one end of each set of push rods (2010).

9. The self-cleaning belt tear detection device according to claim 8, characterized in that: The cleaning mechanism (30) includes a sliding rod (301) fixed above one side of the fitting seat (202), the sliding rod (301) is slidably connected to the fixed cylinder (201), and a brush plate (302) is fixed to the top of the sliding rod (301).

10. A self-cleaning belt tear detection device according to claim 9, characterized in that: The drying mechanism (40) includes a vent pipe (401) fixed to one side of the water collection hood (91), the vent pipe (401) is connected to the air guide pipe (717), and an air distribution pipe (402) is connected above the vent pipe (401), and a number of air nozzles (403) are installed on the top of the air distribution pipe (402).

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