Automatic cleaning device and method for a belt longitudinal tear detection apparatus

Abstract

This invention discloses an automatic cleaning device and method for a belt longitudinal tear detection equipment, relating to the technical field of belt conveyor equipment. The belt longitudinal tear detection equipment includes optical instruments. The automatic cleaning device comprises a dust removal component and a water supply component. The dust removal component includes a cover plate, a scraper, and a drive structure. The cover plate has a light-transmitting part corresponding to the light-transmitting working area of ​​the optical instrument. The scraper is disposed on the surface of the light-transmitting part facing away from the optical instrument. The drive structure is connected to the scraper and drives it to reciprocate across the surface of the light-transmitting part. When the drive structure stops working, the scraper stops at a preset stopping position, which is outside the light-transmitting working area. This invention facilitates the automatic cleaning of the optical working surface of the belt longitudinal tear detection equipment, improves equipment performance and environmental adaptability, and avoids the problem of the scraper remaining on the working surface affecting the detection.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor equipment technology, and in particular to an automatic cleaning device and method for a belt longitudinal tear detection device. Background Technology

[0002] As a continuous transport device, belt conveyors typically use optical instruments to monitor the longitudinal condition of the belt in real time. These optical instruments generally have a light-transmitting working surface. Prolonged exposure to dusty environments can easily lead to dust accumulation on this surface, affecting the imaging clarity and detection accuracy of the optical instruments. This can result in missed or false detections, shortening the equipment's lifespan, and even causing safety accidents and production losses due to undetected tears. In existing technologies, the optical working surface of belt longitudinal tear detection equipment is usually cleaned manually by periodic wiping. However, the frequency of manual cleaning is limited by personnel allocation and management capabilities, making it difficult to meet the real-time cleaning requirements under dusty conditions. Furthermore, the optical working surface is often scattered and inaccessible on long conveyor lines, resulting in high labor intensity and low efficiency for manual cleaning. Summary of the Invention

[0003] This invention provides an automatic cleaning device and method for a belt longitudinal tear detection equipment, which can automatically clean the optical working surface of the belt longitudinal tear detection equipment, improve equipment performance and environmental adaptability, and avoid the problem of detection being affected by scraping parts remaining on the working surface.

[0004] In a first aspect, embodiments of the present invention provide an automatic cleaning device for a belt longitudinal tear detection equipment. The belt longitudinal tear detection equipment includes optical instruments, and the automatic cleaning device includes a dust removal component and a water supply component. The dust removal component includes a cover plate, a scraper, and a drive structure. The cover plate has a light-transmitting part corresponding to the light-transmitting working area of ​​the optical instrument, and the water supply component is used to provide cleaning fluid to the surface of the light-transmitting part. The scraper is disposed on the surface of the light-transmitting part away from the optical instrument, and the drive structure is drivenly connected to the scraper to drive the scraper to reciprocate and scrape the surface of the light-transmitting part. When the drive structure stops working, the scraper stops at a preset stopping position, which is located outside the light-transmitting working area.

[0005] This invention provides a dust removal component and a water supply component. The dust removal component includes a cover plate, a scraper, and a drive structure. The drive structure is connected to the scraper and drives it to reciprocate across the surface of the light-transmitting part. When the drive structure stops, the scraper stops at a preset position outside the light-transmitting working area. By driving the scraper to reciprocate across the light-transmitting surface and coordinating with the water supply component to spray cleaning fluid onto the light-transmitting part, the optical working surface of the belt longitudinal tear detection equipment can be automatically cleaned without manual intervention. This significantly improves the real-time performance and consistency of cleaning and reduces maintenance labor intensity. Furthermore, by setting the preset stopping position of the scraper outside the light-transmitting working area when the machine is stopped, the scraper does not obstruct the optical path of the optical instrument during non-cleaning phases. This avoids the problem of conventional motorized wipers affecting detection due to the scraper blade remaining on the working surface, ensuring that the optical instrument can operate normally even during non-cleaning phases.

[0006] According to the aforementioned embodiment of the first aspect of the present invention, the driving structure includes a driving unit and a transmission structure. The transmission structure includes: a driving eccentric wheel, a rotating shaft, a driven eccentric wheel, and a transmission link. The driving eccentric wheel is drive-connected to the output shaft of the driving unit. The rotating shaft is rotatably mounted on the cover plate, a scraping component is mounted on the rotating shaft, and the driven eccentric wheel is mounted on the rotating shaft. The first end of the transmission link is drive-connected to the driving eccentric wheel, and the second end of the transmission link is drive-connected to the driven eccentric wheel. The rotational motion of the output shaft of the driving unit is converted into the reciprocating oscillation of the rotating shaft via the driving eccentric wheel, the transmission link, and the driven eccentric wheel. The technical solution of the present invention, by setting a transmission structure, converts the rotational motion of the output shaft of the driving unit into the reciprocating oscillation of the rotating shaft via the driving eccentric wheel, the transmission link, and the driven eccentric wheel. This results in a compact structure, smooth movement, high transmission efficiency, and the oscillation amplitude can be adjusted by the eccentricity of the two eccentric wheels, facilitating adaptation to light-transmitting parts of different sizes.

[0007] According to the aforementioned embodiment of the first aspect of the present invention, the rotating shaft passes through the cover plate, and a waterproof structure is provided between the rotating shaft and the cover plate. The technical solution of the present invention, by providing a waterproof structure between the rotating shaft and the cover plate, helps to prevent cleaning fluid from seeping into the equipment compartment below the cover plate through the gap between the rotating shaft and the cover plate, thus protecting optical instruments from liquid damage.

[0008] According to the foregoing embodiments of the first aspect of the present invention, the automatic cleaning device for a belt longitudinal tear detection equipment further includes: a position detection structure and a control unit. The position detection structure includes a position sensor and a trigger. The position sensor is fixedly disposed relative to the cover plate, and the trigger moves synchronously with the scraping component. The trigger is configured to trigger the position sensor when the scraping component moves to a preset stopping position. The control unit is electrically connected to the drive structure and the position sensor. When the trigger moves to the detection position of the position sensor, the position sensor outputs a detection signal, and the control unit controls the drive structure to stop according to the detection signal, causing the scraping component to stop at the preset stopping position. The technical solution of the present invention, by setting a position detection structure and a control unit, wherein the position detection structure includes a position sensor and a trigger, the trigger moves synchronously with the scraping component, and when the trigger moves to the detection position of the position sensor, the position sensor outputs a detection signal, and the control unit controls the drive structure to stop according to the detection signal, causing the scraping component to stop at the preset stopping position. The position sensor, in conjunction with the trigger, can accurately detect whether the scraper has moved to the preset stopping position. The control unit controls the drive structure to stop based on the detection signal, so that the scraper can reliably stop outside the light-transmitting working area each time it stops, improving the positioning accuracy and repeatability of the stopping position.

[0009] According to the aforementioned embodiment of the first aspect of the present invention, the water supply assembly has one inlet and two outlets. The water supply assembly further includes a water pump, a valve, and a three-way connector. The dust removal assembly also includes nozzles. The control unit is electrically connected to the water pump. The outlet of the water pump is connected to the three-way connector via the valve. The two outlets of the three-way connector are respectively connected to the two outlets. Each outlet is connected to a nozzle via a pipeline, and the nozzle is positioned facing the light-transmitting portion. The technical solution of the present invention, by providing one inlet and two outlets on the water supply assembly, allows one set of water supply assembly to simultaneously supply water to two work surfaces to be cleaned. It has a compact structure, occupies little space, and has a low cost. Through the cooperation of the valve and the three-way connector, unified control of the two water supply lines can be achieved.

[0010] According to the aforementioned embodiment of the first aspect of the present invention, the water supply assembly further includes a liquid flow detection structure disposed in the flow path of the water pump. The liquid flow detection structure is electrically connected to the control unit and is configured to output a water shortage warning signal when no liquid flow is detected in the flow path. The control unit controls the water pump to stop based on the water shortage warning signal. The technical solution of the present invention, by setting a liquid flow detection structure to output a water shortage warning signal when no liquid flow is detected in the flow path, and the control unit controls the water pump to stop based on the water shortage warning signal, avoids the water pump running dry and burning out, and prompts the operator to replenish the cleaning fluid in a timely manner, thereby improving the operational safety of the device.

[0011] According to the aforementioned embodiments of the first aspect of the present invention, the automatic cleaning device for a belt longitudinal tear detection equipment further includes a water storage component. The water storage component includes a first housing, a water tank, and a mounting column. The water tank is disposed within the first housing, which is mounted above the water supply component via the mounting column. The outlet of the water tank is connected to the inlet of a water pump, allowing the cleaning fluid in the water tank to flow to the water pump under gravity. In this invention, the first housing is mounted above the water supply component via the mounting column, thus the water tank is positioned above the water supply component, allowing the cleaning fluid in the water tank to flow to the water pump under gravity. This eliminates the need for an additional assist device at the water pump inlet, ensuring continuous and reliable water supply. The structure is simple and the operation is reliable. Furthermore, the water tank can be located away from the water supply component, facilitating on-site maintenance and fluid replenishment.

[0012] According to any of the foregoing embodiments of the first aspect of the present invention, the water supply assembly further includes a second housing and a waterproof connector, the water pump is disposed within the second housing, and the cable exits the second housing through the waterproof connector. In the technical solution of the present invention, by providing a second housing and a waterproof connector, the water pump and other electrical components are sealed within the second housing, and the cable exits the second housing through the waterproof connector, which can prevent dust, moisture, and cleaning fluids from entering the second housing, thereby improving the electrical reliability of the device under harsh operating conditions.

[0013] Secondly, embodiments of the present invention provide an automatic cleaning method for a belt longitudinal tear detection device. The automatic cleaning device for the belt longitudinal tear detection device is cleaned using an automatic cleaning device according to any of the foregoing embodiments of the first aspect of the present invention. The automatic cleaning method for the belt longitudinal tear detection device includes: controlling a water supply component to provide cleaning fluid, and spraying the cleaning fluid onto the surface of the light-transmitting part; controlling a drive structure to operate, driving a scraper to reciprocate and scrape the surface of the light-transmitting part; and after cleaning, controlling the drive structure to stop operating, so that the scraper stops at a preset stopping position outside the light-transmitting working area.

[0014] The automatic cleaning method in this invention includes: controlling a water supply component to provide cleaning fluid, which is sprayed onto the surface of the light-transmitting part; controlling a drive structure to operate, driving a scraper to reciprocate across the surface of the light-transmitting part; and after cleaning, controlling the drive structure to stop, causing the scraper to stop at a preset stopping position outside the light-transmitting working area. By configuring a cover plate, a scraper, a drive structure, and a water supply component in the automatic cleaning device, the drive structure is connected to the scraper for reciprocating scraping on the surface of the light-transmitting part. When the drive structure stops, the scraper stops at the preset stopping position, which is located outside the light-transmitting working area. By driving the scraper to reciprocate across the surface of the light-transmitting part and coordinating with the water supply component to spray cleaning fluid onto the light-transmitting part, the cleaning of the optical working surface of the belt longitudinal tear detection equipment can be automatically completed without manual intervention, significantly improving the real-time performance and consistency of cleaning, and reducing maintenance labor intensity. Meanwhile, by setting the preset stopping position of the squeegee outside the light-transmitting working area when the machine stops, the squeegee does not obstruct the optical path of the optical instrument during the non-cleaning phase. This avoids the problem of conventional motorized wipers affecting detection due to the squeegee blade remaining on the working surface, ensuring that the optical instrument can work normally even during the non-cleaning phase. By first spraying cleaning fluid and then driving the squeegee to scrape back and forth, and controlling the squeegee to stop outside the light-transmitting working area after cleaning, the optical working surface can be cleaned in a controllable and repeatable process.

[0015] According to the foregoing embodiments of the second aspect of the present invention, the water supply assembly further includes a liquid flow detection structure, and the automatic cleaning method for the belt longitudinal tear detection equipment further includes: when the liquid flow detection structure detects no liquid flow in the water supply path, issuing a water shortage warning signal and controlling the water pump of the water supply assembly to stop working. In the technical solution of the present invention, when the liquid flow detection structure detects no liquid flow in the water supply path, issuing a water shortage warning signal and controlling the water pump of the water supply assembly to stop working further improves the operational safety of the water pump and enables timely issuance of a water shortage warning. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an embodiment of the automatic cleaning device of the present invention applied to a belt longitudinal tear detection device;

[0018] Figure 2This is a schematic diagram of the structure of a dust removal component in an embodiment of the automatic cleaning device for a belt longitudinal tear detection equipment of the present invention; Figure 3 This is a schematic diagram of the cover plate structure in one embodiment of the automatic cleaning device for a belt longitudinal tear detection equipment of the present invention; Figure 4 This is a front view of the cover plate structure in one embodiment of the automatic cleaning device for a belt longitudinal tear detection equipment according to the present invention; Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure; Figure 6 This is a bottom view of the cover plate structure in one embodiment of the automatic cleaning device for a belt longitudinal tear detection equipment according to the present invention; Figure 7 This is a schematic diagram of the water supply component in one embodiment of the automatic cleaning device for a belt longitudinal tear detection equipment of the present invention; Figure 8 for Figure 1 Enlarged structural diagram at point A; Figure 9 This is a schematic flowchart of an embodiment of the automatic cleaning method for a belt longitudinal tear detection device of the present invention.

[0019] Explanation of icon numbers: Dust removal component - 100, water supply component - 200, water storage component - 300, belt conveyor - 400, connecting pipe - 500; Cover plate-110, scraper-120, drive structure-130, nozzle-140, third housing-150, upper base plate-160, lower base plate-170, support column-180, water inlet-210, water outlet-220, water pump-230, valve-240, tee connector-250, elbow-260, straight connector-270, liquid flow detection structure-280, second housing-290, waterproof connector-2100, control module-2110, first housing-310, water storage tank-320, mounting column-330; Light-transmitting part-111, drive part-131, active eccentric wheel-132, rotating shaft-133, driven eccentric wheel-134, transmission link-135, waterproof structure-136, position sensor-137, trigger element-138; Output shaft -1311.

[0020] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0024] This invention provides an automatic cleaning device and method for a belt longitudinal tear detection equipment, which can automatically clean the optical working surface of the belt longitudinal tear detection equipment, improve equipment performance and environmental adaptability, and avoid the problem of detection being affected by scraping parts remaining on the working surface.

[0025] like Figures 1 to 7 As shown, this embodiment of the invention provides an automatic cleaning device for a belt longitudinal tear detection device. The belt longitudinal tear detection device has optical instruments, and the automatic cleaning device includes a dust removal component 100 and a water supply component 200.

[0026] The dust removal assembly 100 includes a cover plate 110, a scraper 120, and a drive structure 130.

[0027] The dust removal assembly 100 includes a third housing 150 and a cover plate 110 disposed on the third housing 150. The cover plate 110 is a generally plate-shaped structural component that can isolate the equipment compartment inside the third housing 150 from the external dust environment.

[0028] A light-transmitting window is provided on the cover plate 110, and a light-transmitting part 111 is embedded in the light-transmitting window. The light-transmitting part 111 is set to correspond to the light-transmitting working area of ​​the optical instrument, allowing the detection light path of the optical instrument to pass smoothly while sealing and isolating the equipment compartment inside the third housing 150 from the external environment. The water supply assembly 200 is used to provide cleaning fluid to the surface of the light-transmitting part 111.

[0029] In this embodiment, the light-transmitting portion 111 is preferably transparent glass. In other embodiments, the light-transmitting portion 111 may also be made of other rigid materials with high light transmittance, and this application does not impose any restrictions on this.

[0030] The scraper 120 is disposed on the surface of the light-transmitting part 111 away from the optical instrument, that is, disposed on the side of the light-transmitting part 111 away from the equipment compartment inside the third housing 150.

[0031] In this embodiment, the scraper 120 is preferably a rubber scraper 120, which includes a scraper body and a support that cooperates with the scraper body. In other embodiments, the scraper 120 may also be made of elastic materials such as silicone or thermoplastic elastomers. By providing the rubber scraper 120 in the technical solution of this invention, the rubber scraper 120 can elastically press against the surface of the light-transmitting part 111, closely adhering to the light-transmitting part 111, resulting in good scraping effect, and also exhibiting good wear resistance and environmental adaptability.

[0032] The scraper 120 is fixed to the rotating shaft 133 by fasteners. The fasteners are preferably chamfered flathead screws, whose heads are flush with the support surface of the scraper 120 to prevent the screw head from scratching the light-transmitting portion 111. In other embodiments, the fasteners may also be countersunk screws, rivets, or clips.

[0033] The drive structure 130 is connected to the scraper 120 for driving the scraper 120 to reciprocate on the surface of the light-transmitting part 111. When the drive structure 130 stops working, the scraper 120 stops at a preset stopping position, which is located outside the light-transmitting working area.

[0034] The technical solution of this invention, by setting up a dust removal component 100 and a water supply component 200, wherein the dust removal component 100 includes a cover plate 110, a scraper 120, and a drive structure 130, the drive structure 130 being driven to drive the scraper 120 to reciprocate and scrape the surface of the light-transmitting part 111, and the scraper 120 stopping at a preset stopping position when the drive structure 130 stops working, the preset stopping position being located outside the light-transmitting working area. By driving the scraper 120 to reciprocate and scrape the surface of the light-transmitting part 111 through the drive structure 130, and cooperating with the water supply component 200 to spray cleaning liquid onto the light-transmitting part 111, the optical working surface of the belt longitudinal tear detection equipment can be automatically cleaned without manual intervention, significantly improving the real-time performance and consistency of cleaning, and reducing maintenance labor intensity. Meanwhile, by setting the preset stopping position of the swiping component 120 outside the light-transmitting working area when the machine is stopped, the swiping component 120 does not block the light path of the optical instrument during the non-cleaning stage, avoiding the problem of conventional motorized wipers affecting detection due to the swiping blade remaining on the working surface, and ensuring that the optical instrument can work normally during the non-cleaning stage.

[0035] like Figures 3 to 6 As shown, the drive structure 130 includes a drive unit 131 and a transmission structure.

[0036] The drive unit 131 is mounted below the cover plate 110. The drive unit 131 is preferably a geared motor. A geared motor can output a large torque at a low speed, facilitating the driving of the scraping component 120 for low-speed reciprocating scraping. In other embodiments, the drive unit 131 may also be a combination of a servo motor and a reducer, a combination of a stepper motor and a reducer, or other power sources capable of outputting controllable rotational motion; this application does not impose any limitations on these aspects.

[0037] The transmission mechanism is used to convert the rotational motion of the output shaft 1311 of the drive unit 131 into the reciprocating scraping motion of the scraper 120. Specifically, the dust removal assembly 100 also includes an upper base plate 160, a lower base plate 170, and support columns 180. The transmission structure is clamped and fixed between the upper base plate 160 and the lower base plate 170, and the upper base plate 160 and the lower base plate 170 are connected by a number of support columns 180.

[0038] In this embodiment, as Figures 3 to 6 As shown, the transmission structure includes: a driving eccentric wheel 132, a rotating shaft 133, a driven eccentric wheel 134, and a transmission connecting rod 135.

[0039] The active eccentric wheel 132 is connected to the output shaft 1311 of the drive unit 131 (for example, fixed to the end of the output shaft 1311 by a key, pin, or set screw) and rotates synchronously with the output shaft 1311. The active eccentric wheel 132 is provided with a mounting point offset from the axis of the output shaft 1311, and a shaft pin of the active eccentric wheel 132 is provided at the mounting point. The axis of the shaft pin of the active eccentric wheel 132 has a first eccentricity relative to the axis of the output shaft 1311.

[0040] The rotating shaft 133 is rotatably disposed on the cover plate 110. One end of the rotating shaft 133 is located above the cover plate 110 (i.e., on the side of the light-transmitting part 111) and is fixedly connected to the scraper 120. The other end of the rotating shaft 133 is located below the cover plate 110 (i.e., on the side of the drive part 131) and is fixedly connected to the driven eccentric wheel 134.

[0041] The driven eccentric wheel 134 is provided with a mounting point that is offset from the axis of the rotating shaft 133. The mounting point is provided with a shaft pin of the driven eccentric wheel 134. The axis of the shaft pin of the driven eccentric wheel 134 has a second eccentricity relative to the axis of the rotating shaft 133.

[0042] In some embodiments, the first end of the transmission link 135 is connected to the driving eccentric wheel 132 via a shaft pin of the driving eccentric wheel 132, and the second end of the transmission link 135 is connected to the driven eccentric wheel 134 via a shaft pin of the driven eccentric wheel 134.

[0043] Therefore, when the output shaft 1311 of the drive unit 131 rotates in one direction, the driving eccentric wheel 132 rotates accordingly, and the shaft pin of the driving eccentric wheel 132 moves in a circle around the axis of the output shaft 1311. This circular motion is transmitted to the driven eccentric wheel 134 shaft pin via the transmission link 135. The driven eccentric wheel 134 shaft pin reciprocates in an arc-shaped trajectory around the axis of the rotating shaft 133, thereby driving the driven eccentric wheel 134 and the rotating shaft 133 to reciprocate. The scraping member 120 above the rotating shaft 133 performs a reciprocating scraping motion on the surface of the light-transmitting part 111 as the rotating shaft 133 reciprocates.

[0044] The technical solution of the present invention, by setting up a transmission structure, converts the rotational motion of the output shaft 1311 of the drive unit 131 into the reciprocating oscillation of the rotating shaft 133 through the active eccentric wheel 132, the transmission link 135 and the driven eccentric wheel 134. The structure is compact, the motion is smooth and the transmission efficiency is high.

[0045] By setting the eccentricity of the active eccentric wheel 132 and the driven eccentric wheel 134, as well as the length of the transmission link 135, the swing amplitude of the scraper 120 can be easily adjusted to cover the entire light-transmitting working area.

[0046] In other embodiments, the transmission mechanism may also employ other mechanisms capable of converting rotational motion into reciprocating oscillation, such as a single crank and rocker mechanism, a crank-slider mechanism, or a cam-rocker mechanism; this application does not impose any limitations on these.

[0047] To reduce frictional resistance in the transmission pair, the transmission mechanism also includes multiple bearings, preferably deep groove ball bearings. The rotating shaft 133 is rotatably mounted in the mounting through hole on the cover plate 110 via the bearings. A bearing is also provided at the connection between the driving eccentric wheel 132 and the transmission connecting rod 135, with the bearing sleeved on the shaft pin of the driving eccentric wheel 132 and located within the first end of the transmission connecting rod 135. A bearing is also provided at the connection between the driven eccentric wheel 134 and the transmission connecting rod 135, with the bearing sleeved on the shaft pin of the driven eccentric wheel 134 and located within the second end of the transmission connecting rod 135.

[0048] Since the scraper 120 is frequently in contact with cleaning fluid during operation, in order to prevent the cleaning fluid from seeping into the equipment compartment below the cover plate 110 through the gap between the rotating shaft 133 and the cover plate 110, the dust removal assembly 100 also provides a waterproof structure 136 between the rotating shaft 133 and the cover plate 110.

[0049] Specifically, the waterproof structure 136 includes a hollow bushing fitted around the rotating shaft 133 and a waterproof oil seal disposed between the rotating shaft 133 and the hollow bushing (or between the rotating shaft 133 and the cover plate 110). The outer periphery of the hollow bushing fits tightly with the inner wall of the mounting through hole on the cover plate 110. The waterproof oil seal is preferably a skeleton oil seal, which helps to prevent cleaning fluid from seeping into the equipment compartment through the rotating shaft 133.

[0050] In other embodiments, the waterproof structure 136 may also employ any sealing element capable of achieving dynamic sealing of the rotating shaft 133, such as an elastic lip seal, mechanical seal, or magnetic fluid seal. This application does not impose any restrictions on this.

[0051] The technical solution of the present invention provides a waterproof structure 136 between the rotating shaft 133 and the cover plate 110, which helps to prevent cleaning liquid from seeping into the equipment compartment below the cover plate 110 through the gap between the rotating shaft 133 and the cover plate 110, thus protecting the optical instruments from liquid damage.

[0052] To ensure that the scraper 120 can accurately stop at the preset stopping position (the preset stopping position is outside the light-transmitting working area) when the drive structure 130 stops working, such as Figures 3 to 4 As shown, the automatic cleaning device for the belt longitudinal tear detection equipment also includes: a position detection structure and a control unit (not shown in the figure).

[0053] The position detection structure includes a position sensor 137 and a trigger 138. The position sensor 137 is fixedly disposed relative to the cover plate 110, for example, by means of a bracket fixed to a position below the cover plate 110 corresponding to a preset stopping position. The trigger 138 moves synchronously with the scraper 120 and is configured to trigger the position sensor 137 when the scraper 120 moves to the preset stopping position. The control unit is electrically connected to the drive structure 130 and the position sensor 137.

[0054] When the trigger 138 moves to the detection position of the position sensor 137, the position sensor 137 outputs a detection signal. The control unit controls the drive structure 130 to stop according to the detection signal, so that the scraper 120 stops at the preset stopping position. When the scraper 120 is outside the preset stopping position, the trigger 138 and the detection position of the position sensor 137 are misaligned.

[0055] The control unit controls the operation and shutdown of the drive unit 131 based on the detection signal output by the position sensor 137. When the control unit receives a cleaning end command, it controls the drive unit 131 to continue operating and monitors the output of the position sensor 137 in real time. When the trigger 138 moves to the detection position of the position sensor 137 and causes the position sensor 137 to output a detection signal, the control unit immediately controls the drive unit 131 to stop, so that the scraper 120 accurately stops at the preset stopping position.

[0056] In this embodiment, the position sensor 137 is preferably a photoelectric switch, and the trigger 138 is preferably a trigger plate. The photoelectric switch has a detection optical path for transmitting and receiving optical signals, and the trigger plate can block the detection optical path when it moves into the detection optical path, thereby triggering the photoelectric switch to output a detection signal.

[0057] In other embodiments, the position sensor 137 can also be any sensor capable of detecting the position of the detected object, such as a proximity switch, a Hall sensor, or a micro switch. The shape and material of the trigger 138 can be adapted to the type of the position sensor 137. For example, when used with a Hall sensor, the trigger 138 can be a permanent magnet; when used with a micro switch, the trigger 138 can be a contact rod. This application does not impose any limitations on this.

[0058] The technical solution of this invention establishes a position detection structure and a control unit. The position detection structure includes a position sensor 137 and a trigger 138. The trigger 138 moves synchronously with the scraping component 120. When the trigger 138 moves to the detection position of the position sensor 137, the position sensor 137 outputs a detection signal. The control unit controls the drive structure 130 to stop based on the detection signal, causing the scraping component 120 to stop at a preset stopping position. The position sensor 137 and the trigger 138 work together to accurately detect whether the scraping component 120 has moved to the preset stopping position. The control unit controls the drive structure 130 to stop based on the detection signal, ensuring that the scraping component 120 reliably stops outside the light-transmitting working area each time it stops, improving the positioning accuracy and repeatability of the stopping position.

[0059] like Figure 7 As shown, the water supply assembly 200 has one inlet 210 and two outlets 220. The water supply assembly 200 also includes a water pump 230, a valve 240, and a three-way connector 250. The dust removal assembly 100 also includes nozzles 140, such as... Figure 8 As shown, the nozzle 140 is positioned towards the light-transmitting portion 111. Specifically, the two outlets 220 of the water supply assembly 200 are connected to the two nozzles 140 via pipelines, and the two nozzles 140 are respectively positioned to correspond to the two working surfaces to be cleaned.

[0060] The inlet of the water pump 230 is connected to the inlet 210, and the outlet of the water pump 230 is connected to the inlet of the tee connector 250 via the valve 240. The two outlets of the tee connector 250 are respectively connected to two outlets 220, and each outlet 220 is connected to a nozzle 140 via a pipeline.

[0061] Valve 240 is preferably a solenoid valve, which offers rapid response and easy control. In other embodiments, valve 240 can also be any valve 240 that can be controlled to open and close by an electrical signal, such as an electric ball valve or a pneumatic valve.

[0062] The tee connector 250 is preferably an equal-diameter tee, which distributes the flow rate evenly between its two outlets. In other embodiments, the tee connector 250 may also be an unequal-diameter tee to accommodate different flow rate requirements of the two outlets 220.

[0063] The technical solution of this invention provides a water supply assembly 200 with one inlet 210 and two outlets 220. One water supply assembly 200 can simultaneously supply water to two work surfaces to be cleaned. It features a compact structure, small footprint, and low cost. Through the cooperation of the valve 240 and the tee connector 250, unified control of the two water supply lines can be achieved.

[0064] In other embodiments, the automatic cleaning device may only supply water and clean one working surface to be cleaned. In this case, the water supply assembly 200 may only have one outlet 220 and one corresponding nozzle 140. When supplying water and cleaning more than two working surfaces to be cleaned, the three-way connector 250 may be replaced with a multi-way connector, with a valve 240 installed on each branch. The control unit is located in the water supply assembly 200 and takes the form of a control module 2110. The control module 2110 controls each valve 240 in a time-sharing or parallel manner to achieve simultaneous or alternating cleaning of multiple surfaces.

[0065] The piping inside the water supply assembly 200 and between it and the nozzle 140 includes a first pipe and a second pipe. In this embodiment, the first pipe is preferably a capillary PU tube, and the second pipe is preferably a PVC pipe. The capillary PU tube has a small inner diameter and good flexibility, making it easy to arrange in a winding manner inside the water supply assembly 200. The PVC pipe is water-resistant and corrosion-resistant, making it suitable for connecting rigid parts of the piping. The piping is connected by elbows 260 and straight connectors 270, which are preferably quick-connect fittings for easy assembly and maintenance. In other embodiments, the pipe fittings can also be threaded fittings, compression fittings, etc., and this application does not limit this.

[0066] To prevent the water pump 230 from being damaged due to dry running in the event of a water shortage, the water supply assembly 200 also includes a flow detection structure 280. The flow detection structure 280 is installed in the flow path of the water pump 230 (e.g., on the outlet pipe of the water pump 230). The control unit within the water supply assembly 200 is implemented as a control module 2110, and the flow detection structure 280 is electrically connected to the control module 2110. The flow detection structure 280 is configured to output a water shortage warning signal when no flow is detected in the flow path. Based on the water shortage warning signal, the control module 2110 issues an alarm (e.g., an audible and visual alarm or a notification from the host computer) and simultaneously controls the water pump 230 to stop. The flow detection structure 280 can be a flow switch, flow meter, conductivity flow sensor, or impeller flow sensor, etc., and this application does not impose any limitations on this.

[0067] The technical solution of this invention sets up a liquid flow detection structure, which outputs a water shortage warning signal when no liquid flow is detected in the flow path. The control module 2110 controls the water pump 230 to stop according to the water shortage warning signal, so as to avoid the water pump 230 running dry and burning out, and prompts the operator to replenish the cleaning fluid in time, thereby improving the operational safety of the device.

[0068] like Figure 1 As shown, the automatic cleaning device for the belt longitudinal tear detection equipment also includes a water storage assembly 300. The water storage assembly 300 includes a first housing 310, a water tank 320, and a mounting column 330.

[0069] The water tank 320 is used to hold cleaning fluid. The water tank 320 is located inside the first housing 310, which protects and supports the water tank 320.

[0070] The first housing 310 is mounted above the water supply assembly 200 via a mounting column 330. Specifically, the lower end of the mounting column 330 is fixed to the bracket of the belt conveyor 400 or the ground, and the upper end of the mounting column 330 is connected to the first housing 310. The outlet of the water storage tank 320 is connected to the inlet 210 of the water supply assembly 200 via a connecting pipe 500.

[0071] Because the water storage tank 320 is positioned higher than the water supply component 200, the cleaning fluid inside the tank can flow through the connecting pipe 500 to the inlet 210 of the water supply component 200 under gravity. This eliminates the need for an additional assist device at the inlet 210 of the water supply component 200, ensuring continuous and reliable water supply. The structure is simple and the operation is reliable. Furthermore, the water storage tank 320 can be positioned away from the water supply component 200, facilitating on-site maintenance and fluid replenishment.

[0072] Preferably, the nozzle 140 is a fan-shaped nozzle 140, with its nozzle orifice facing the light-transmitting portion 111, for spraying a fan-shaped liquid stream onto the surface of the light-transmitting portion 111. The fan-shaped nozzle 140 has a flat, fan-shaped opening, and the sprayed cleaning liquid is distributed in a fan shape in a direction perpendicular to the spray direction, which can cover a larger cleaning area and facilitates uniform wetting of the surface of the light-transmitting portion 111 by the cleaning liquid, thus improving cleaning efficiency and uniformity. In other embodiments, the nozzle 140 may also be a conical nozzle 140, a dotted nozzle 140, or a multi-hole nozzle 140; this application does not impose any limitations on this.

[0073] To protect the water pump 230 and electrical components under harsh operating conditions, such as Figure 7 As shown, the water supply assembly 200 also includes a second housing 290 and a waterproof connector 2100. The water pump 230, valve 240, tee connector 250, and flow detection structure 280 are all housed within the second housing 290. The second housing 290 is a sealed enclosure, preventing dust and moisture from entering. The cable between the control module 2110 and external electrical equipment exits the second housing 290 via the waterproof connector 2100, which provides a seal at the cable exit point.

[0074] In the technical solution of the present invention, by setting a second housing 290 and a waterproof connector 2100, the water pump 230 and other electrical components are sealed inside the second housing 290, and the cable passes through the waterproof connector 2100 to exit the second housing 290, which can prevent dust, moisture and cleaning liquid in the environment from entering the second housing 290, thereby improving the electrical reliability of the device under harsh working conditions.

[0075] like Figure 9 As shown, this embodiment of the invention also provides an automatic cleaning method for a belt longitudinal tear detection device, wherein the belt longitudinal tear detection device is cleaned by an automatic cleaning device according to any of the foregoing embodiments of the first aspect of the invention.

[0076] like Figures 1 to 7 As shown, the automatic cleaning device includes a dust removal assembly 100 and a water supply assembly 200. The dust removal assembly 100 includes a cover plate 110, a scraper 120, and a drive structure 130. The cover plate 110 has a light-transmitting part 111 corresponding to the light-transmitting working area of ​​the optical instrument, and the water supply assembly 200 is used to provide cleaning fluid to the surface of the light-transmitting part 111. The scraper 120 is disposed on the surface of the light-transmitting part 111 away from the optical instrument, and the drive structure 130 is connected to the scraper 120 for driving the scraper 120 to reciprocate and scrape the surface of the light-transmitting part 111. When the drive structure 130 stops working, the scraper 120 stops at a preset stopping position, which is located outside the light-transmitting working area.

[0077] like Figure 9 As shown, the automatic cleaning method for a belt longitudinal tear detection device includes steps S100 to S300.

[0078] In step S100, the water supply assembly 200 is controlled to provide cleaning fluid, which is then sprayed onto the surface of the light-transmitting part 111. Specifically, the control module 2110 controls the water pump 230 to start and controls the valve 240 to open, allowing the cleaning fluid in the water tank 320 to enter the water pump 230 through the connecting pipe 500. After being pressurized by the water pump 230, the cleaning fluid passes through the valve 240, the tee connector 250, the first pipe and / or the second pipe, and the corresponding connector, and is finally sprayed onto the surface of the light-transmitting part 111 from the nozzle 140.

[0079] In step S200, the control drive structure 130 is activated, driving the scraper 120 to reciprocate and scrape the surface of the light-transmitting part 111. Specifically, the control unit controls the drive unit 131 to start and rotate. The rotational motion of the output shaft 1311 of the drive unit 131 is converted into the reciprocating oscillation of the rotating shaft 133 via the active eccentric wheel 132, the transmission link 135, and the driven eccentric wheel 134, thereby driving the scraper 120 to reciprocate and scrape the surface of the light-transmitting part 111, removing the dust and residual cleaning liquid deposited on the surface of the light-transmitting part 111.

[0080] It should be noted that steps S100 and S200 can be performed simultaneously, or step S100 can be performed first to pre-wet the surface of the light-transmitting part 111 before step S200 is performed for scraping, or steps S100 and S200 can be performed alternately to achieve a wet-scrape-wet-scrape cycle cleaning to adapt to cleaning needs under different working conditions.

[0081] In step S300, after cleaning is completed, the control drive structure 130 stops working, causing the scraper 120 to stop at a preset stopping position outside the light-transmitting working area. Specifically, the control module 2110 first controls the valve 240 to close and the water pump 230 to stop working, causing the water supply assembly 200 to stop spraying cleaning fluid. Then, the control unit controls the drive unit 131 to continue rotating for a period of time to scrape off the remaining cleaning fluid on the surface of the light-transmitting part 111. Afterward, the control unit monitors the output of the position sensor 137 in real time. When the position sensor 137 is triggered by the trigger 138 and outputs a detection signal, the control unit immediately controls the drive unit 131 to stop, causing the scraper 120 to stop at the preset stopping position (outside the light-transmitting working area).

[0082] The automatic cleaning method in the technical solution of the present invention includes: controlling the water supply component 200 to provide cleaning liquid, which is sprayed onto the surface of the light-transmitting part 111; controlling the drive structure 130 to work, driving the scraper 120 to reciprocate and scrape the surface of the light-transmitting part 111; after cleaning, controlling the drive structure 130 to stop working, so that the scraper 120 stops at a preset stopping position outside the light-transmitting working area. By setting the cover plate 110, the scraper 120, the drive structure 130 and the water supply component 200 in the automatic cleaning device, the drive structure 130 is connected to the scraper 120 for driving the scraper 120 to reciprocate and scrape the surface of the light-transmitting part 111. When the drive structure 130 stops working, the scraper 120 stops at the preset stopping position, which is located outside the light-transmitting working area. The drive structure 130 drives the scraper 120 to reciprocate across the surface of the light-transmitting section 111, while the water supply assembly 200 sprays cleaning fluid onto the light-transmitting section 111. This automatically cleans the optical working surface of the belt longitudinal tear detection equipment without manual intervention, significantly improving the real-time performance and consistency of cleaning and reducing maintenance labor intensity. Furthermore, by setting the preset stopping position of the scraper 120 outside the light-transmitting working area during shutdown, the scraper 120 does not obstruct the optical path of the optical instrument during non-cleaning phases. This avoids the problem of conventional motorized wipers affecting detection due to the scraper blade remaining on the working surface, ensuring the optical instrument can operate normally even during non-cleaning phases. By first spraying cleaning fluid and then driving the scraper 120 to reciprocate, and controlling the scraper 120 to stop outside the light-transmitting working area after cleaning, the optical working surface can be cleaned in a controllable and repeatable process.

[0083] Preferably, the water supply assembly 200 further includes a liquid flow detection structure, and the automatic cleaning method for the belt longitudinal tear detection device further includes step S400.

[0084] In step S400, when the liquid flow detection structure detects no liquid flow in the water supply path, it issues a water shortage warning signal and controls the water pump 230 of the water supply component 200 to stop working.

[0085] In the technical solution of the present invention, when the liquid flow detection structure detects no liquid flow in the water supply path, it issues a water shortage warning signal and controls the water pump 230 of the water supply component 200 to stop working, which further improves the operational safety of the water pump 230 and can issue a water shortage warning in a timely manner.

[0086] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An automatic cleaning device for a belt longitudinal tear detection equipment, the belt longitudinal tear detection equipment having optical instruments, characterized in that, The automatic cleaning device for the belt longitudinal tear detection equipment includes a dust removal component and a water supply component. The dust removal component includes: A cover plate is provided with a light-transmitting part corresponding to the light-transmitting working area of ​​the optical instrument, and the water supply component is used to provide cleaning liquid to the surface of the light-transmitting part; A scraping element is disposed on the surface of the light-transmitting portion on the side opposite to the optical instrument; A drive structure, connected to the scraping component, is used to drive the scraping component to reciprocate and scrape the surface of the light-transmitting portion. When the drive structure stops working, the scraping component stops at a preset stopping position, which is located outside the light-transmitting working area.

2. The automatic cleaning device for a belt longitudinal tear detection equipment as described in claim 1, characterized in that, The drive structure includes a drive unit and a transmission structure. The transmission structure includes: The active eccentric wheel is connected to the output shaft of the drive unit via a transmission. A rotating shaft is rotatably mounted on the cover plate, and the scraping element is mounted on the rotating shaft; A driven eccentric wheel is disposed on the rotating shaft; and A transmission link, wherein the first end of the transmission link is connected to the driving eccentric wheel, and the second end of the transmission link is connected to the driven eccentric wheel; The rotational motion of the output shaft of the drive unit is converted into the reciprocating oscillation of the shaft via the driving eccentric wheel, the transmission link and the driven eccentric wheel.

3. The automatic cleaning device for a belt longitudinal tear detection equipment as described in claim 2, characterized in that, The rotating shaft passes through the cover plate, and a waterproof structure is provided between the rotating shaft and the cover plate.

4. The automatic cleaning device for a belt longitudinal tear detection device as described in claim 1, characterized in that, The driving structure also includes: A position detection structure includes a position sensor and a trigger. The position sensor is fixedly disposed relative to the cover plate, and the trigger moves synchronously with the scraping component. The trigger is configured to trigger the position sensor when the scraping component moves to the preset stopping position. The automatic cleaning device for the belt longitudinal tear detection equipment also includes a control unit, which is electrically connected to the drive structure and the position sensor. When the trigger moves to the detection position of the position sensor, the position sensor outputs a detection signal, and the control unit controls the drive structure to stop according to the detection signal, so that the scraper stops at the preset stopping position.

5. The automatic cleaning device for a belt longitudinal tear detection device as described in claim 4, characterized in that, The water supply assembly has one inlet and two outlets, and also includes a water pump, valves, and a three-way connector. The dust removal assembly includes nozzles. The control unit is electrically connected to the water pump. The outlet of the water pump is connected to the three-way connector through the valve. The two outlets of the three-way connector are respectively connected to the two water outlets. Each water outlet is connected to a nozzle through a pipeline. The nozzle is positioned facing the light-transmitting part.

6. The automatic cleaning device for a belt longitudinal tear detection device as described in claim 5, characterized in that, The water supply assembly also includes a liquid flow detection structure disposed on the flow path of the water pump. The liquid flow detection structure is electrically connected to the control unit. The liquid flow detection structure is configured to output a water shortage warning signal when it detects no liquid flow in the flow path. The control unit controls the water pump to stop according to the water shortage warning signal.

7. The automatic cleaning device for a belt longitudinal tear detection device as described in claim 5, characterized in that, The automatic cleaning device for the belt longitudinal tear detection equipment further includes a water storage component. The water storage component includes a first housing, a water tank, and a mounting column. The water tank is disposed inside the first housing. The first housing is installed above the water supply component via the mounting column. The outlet of the water tank is connected to the inlet of the water pump, so that the cleaning liquid in the water tank flows to the water pump under the action of gravity.

8. The automatic cleaning device for a belt longitudinal tear detection device as described in any one of claims 5 to 7, characterized in that, The water supply assembly also includes a second housing and a waterproof connector. The water pump is disposed inside the second housing, and the cable passes through the waterproof connector and exits the second housing.

9. An automatic cleaning method for a belt longitudinal tear detection device, characterized in that, The belt longitudinal tear detection device is cleaned using the automatic cleaning device as described in any one of claims 1 to 8, and the automatic cleaning method for the belt longitudinal tear detection device includes: The water supply assembly is controlled to provide cleaning fluid, which is then sprayed onto the surface of the light-transmitting portion. The drive structure is controlled to operate, driving the scraping component to reciprocate and scrape the surface of the light-transmitting part. After cleaning is completed, the drive structure is controlled to stop working, so that the scraper stops at the preset stopping position outside the light-transmitting working area.

10. The automatic cleaning method for a belt longitudinal tear detection device as described in claim 9, characterized in that, The water supply assembly further includes a liquid flow detection structure, and the automatic cleaning method for the belt longitudinal tear detection device further includes: When the liquid flow detection structure detects no liquid flow in the water supply path, it issues a water shortage warning signal and controls the water pump of the water supply component to stop working.

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