Automatic cleaning device for optical cover plate

Abstract

The application discloses an automatic cleaning device for optical cover plates, which comprises an ultrasonic cleaning tank, a conveying mechanism, a clamping mechanism and an automatic material taking mechanism. The conveying mechanism comprises a plurality of rotating rollers and a conveying belt wound around the rotating rollers. The conveying belt extends at least partially into a cleaning groove of the ultrasonic cleaning tank and at least partially to a position outside the cleaning groove. Any rotating roller is driven to rotate directionally by a rotating element. The clamping mechanism comprises a guide rail and two sliding frames movably and symmetrically arranged on the guide rail. The guide rail is uniformly and vertically arranged on the surface of the conveying belt. The inner side ends of the sliding frames are symmetrically provided with limiting parts suitable for vertically inserting and fixing the optical cover plates. The automatic material taking mechanism comprises a monitoring element, a material taking element and an electric control cabinet. The monitoring element and the material taking element are electrically connected with the rotating element through the electric control cabinet. After a predetermined number of rotations or a predetermined time of the rotating element is monitored, the material taking element is controlled by the electric control cabinet to automatically take down the optical cover plates in sequence, so that the working efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic cleaning equipment, in particular to an optical cover plate automatic cleaning device. BACKGROUND

[0002] In the processing of optical cover plates, the optical cover plates need to be cleaned multiple times. Due to various factors such as the specific types of optical cover plates based on use and the common dirt conditions on the surface of each type of optical cover plate, the cleaning degree required for each type of optical cover plate produced may not be consistent. How to efficiently clean each type of optical cover plate as needed under the premise of ensuring cleaning quality and controlling cleaning cost is a major problem at present. SUMMARY

[0003] An advantage of the present application is to provide an optical cover plate automatic cleaning device, wherein the number of rotations or the rotation time of the rotating element is calculated in advance for optical cover plates of a specific use or type. After the optical cover plate is cleaned in the cleaning tank by directional rotating movement of the sliding frame, the optical cover plate is automatically removed by the taking element, thereby effectively improving the automatic cleaning efficiency of the optical cover plate under the premise of ensuring the cleaning quality of the optical cover plate, and automatically unloading the equipment. The overall design of the device is ingenious and the cost is low.

[0004] An advantage of the present application is to provide an optical cover plate automatic cleaning device, wherein the distance between the two sliding frames on the same guide rail can be adjusted synchronously based on the cooperation of the bidirectional screw rod, the chain wheel and the chain belt, so that the automatic cleaning device is suitable for cleaning optical cover plates of different sizes, and has a wide range of applications.

[0005] An advantage of the present application is to provide an optical cover plate automatic cleaning device, wherein the one-way rotating roller not only facilitates the quick and stable insertion and fixation of the optical cover plate, but also avoids the optical cover plate from moving in the opposite direction and separating from the limiting portion during the cleaning process, thereby ensuring the stability and reliability of the automatic cleaning device.

[0006] An advantage of the present application is to provide an optical cover plate automatic cleaning device, wherein when the taking plate is driven to the corresponding horizontal portions between the two adjacent guide rails, the taking plate overcomes the elasticity of the elastic element through the wider middle position, thereby straining the two sliding frames apart by a certain distance, so that the optical cover plate can automatically fall away from the limiting portion under the action of gravity, the automatic unloading of the cleaned optical cover plate is completed, and the working efficiency of the automatic cleaning device can be improved.

[0007] To achieve at least one of the advantages of the present application, the present application provides an optical cover plate automatic cleaning device, comprising:

[0008] An ultrasonic cleaning tank, wherein the ultrasonic cleaning tank has a cleaning tank;

[0009] The conveying mechanism comprises a conveying belt and a plurality of rotating rollers, the conveying belt is arranged around the rotating rollers in a manner that can be driven to rotate in a direction, at least a part of the conveying belt extends into the cleaning tank in a manner that can be immersed in the cleaning liquid in the cleaning tank, and at least a part of the conveying belt is located outside the cleaning tank for feeding the optical cover plate, any rotating roller is driven to rotate in a direction by a rotating element;

[0010] The clamping mechanism comprises a guide rail and two sliding frames movably arranged symmetrically on the guide rail, the guide rail is uniformly arranged on the surface of the conveying belt, and the extension direction of the guide rail is perpendicular to the conveying direction of the conveying belt, the inner side end of the sliding frame is symmetrically provided with a limiting part suitable for being vertically inserted and fixed to the optical cover plate;

[0011] The automatic material taking mechanism comprises a monitoring element, a material taking element and an electric control cabinet, the monitoring element, the material taking element and the rotating element are electrically connected through the electric control cabinet, after the monitoring element monitors that the rotating element rotates for a predetermined number of turns or for a predetermined time, the material taking element is controlled by the electric control cabinet to automatically take the optical cover plate inserted in the sliding frame in sequence.

[0012] According to an embodiment of the present application, the longitudinal section of the cleaning tank is an inverted isosceles trapezoid;

[0013] Among the plurality of rotating rollers, two of the rotating rollers are defined as first rotating rollers, and the two first rotating rollers are arranged in parallel in the cleaning tank, two of the rotating rollers are defined as second rotating rollers, and the two second rotating rollers are arranged in parallel above the cleaning tank, and the first rotating rollers and the second rotating rollers surround an inverted isosceles trapezoid matching the shape of the cleaning tank.

[0014] According to an embodiment of the present application, the guide rail is provided with a bidirectional threaded screw rod at the top, and all the bidirectional threaded screw rods are connected at the same end by a sprocket and a chain belt;

[0015] The sliding frame comprises a mounting frame, a limiting frame and an elastic element elastically connecting the mounting frame and the limiting frame, the bottom of the mounting frame is provided with a guide seat, and two guide seats located on the same guide rail are respectively provided with a forward and reverse threaded channel matched with the bidirectional threaded screw rod, the limiting frame is located at the inner side of the mounting frame, and the limiting part is located at the inner side end of the limiting frame.

[0016] According to an embodiment of the present application, the limiting frame is L-shaped, having a vertical portion and a horizontal portion, wherein the limiting portion is arranged at the inner end of the vertical portion, and the horizontal portion extends away from the mounting frame, and the top of the horizontal portion is provided with a supporting portion adapted to support the optical cover plate, so that the optical cover plate can be supported at a certain height away from the horizontal portion when being inserted and fixed between two sliding frames on the same guide rail.

[0017] According to an embodiment of the present application, the vertical portion is provided with a plurality of rollers arranged at the inner end in the extending direction, and a plurality of limiting grooves are arranged at the middle position of the extending direction, and the limiting portion is formed by the cooperation of the limiting grooves.

[0018] According to an embodiment of the present application, the roller is a rubber roller.

[0019] According to an embodiment of the present application, the vertical portion is provided with a mounting groove adapted to mount the roller, and a fixing rod is arranged in the mounting groove, the roller is mounted on the corresponding fixing rod through a bearing sleeve, and the roller is uniformly provided with a ratchet on both sides of the bearing in the circumferential direction, and the fixing rod is provided with a pawl cooperating with the ratchet, so that the roller can only rotate in one direction towards the direction of inserting and fixing the optical cover plate.

[0020] According to an embodiment of the present application, the supporting portion is arc-shaped or semi-circular convex structure, and the top of the supporting portion is provided with a supporting groove cooperating with the gap of the optical cover plate.

[0021] According to an embodiment of the present application, the material taking element comprises a supporting frame, a material taking plate and a telescopic element, the supporting frame is arranged on one side of the ultrasonic cleaning tank, the telescopic element is fixedly arranged on the upper part of the supporting frame, the material taking plate is parallel to the conveying belt on the side inclined portion, the material taking plate is wide in the middle and narrow at both ends in the width direction, the size of the material taking plate in the length direction is smaller than the size between the corresponding horizontal portions on the adjacent two guide rails, and the length direction is opposite to the conveying direction of the conveying belt, the material taking plate is connected to the output end of the telescopic element in a manner that can be driven to relatively approach or move away from the conveying belt, and the telescopic element is electrically connected to the electric control cabinet.

[0022] According to an embodiment of the present application, the supporting frame is provided with a sliding plate below the material taking plate, and the sliding plate extends obliquely, wherein the high end is connected to the top side wall of the ultrasonic cleaning tank, and the bottom end extends away from the ultrasonic cleaning tank.

[0023] These and other objects, features and advantages of the present application will become apparent with reference to the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A perspective view of the optical cover plate automatic cleaning device according to a preferred embodiment of the present application is shown.

[0025] Figure 2 A partial view of the conveying mechanism according to the present application is shown.

[0026] Figure 3 A perspective view of the clamping mechanism according to the present application is shown.

[0027] Figure 4 A perspective view of the roller part according to the present application is shown.

[0028] Figure 5 A perspective view of the automatic material taking mechanism according to the present application is shown.

[0029] The reference signs: 10-ultrasonic cleaning tank, 101-cleaning tank, 20-conveying mechanism, 21-first rotating roller, 22-second rotating roller, 23-conveying belt, 30-clamping mechanism, 301-limiting part, 302-mounting groove, 303-supporting groove, 31-guide rail, 32-sliding frame, 321-mounting frame, 322-limiting frame, 3221-vertical part, 3222-horizontal part, 323-elastic member, 324-guide seat, 325-supporting part, 326-roller, 3261-ratchet, 327-fixing rod, 3271-pawl, 33-bidirectional threaded screw, 34-sprocket, 41-supporting frame, 42-material taking plate, 43-telescopic element, 44-sliding plate. DETAILED DESCRIPTION

[0030] The following description is provided to enable any person skilled in the art to make and use the present application. The preferred embodiments in the following description are only examples of the present application and modifications can be made by those skilled in the art within the spirit and scope of the present application. The basic principles defined in the following description can be applied to other embodiments, modifications, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present application.

[0031] Those skilled in the art should understand that in the disclosure of the specification, the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the above terms cannot be understood as a limitation of the present application.

[0032] It can be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of one element can be one, and in another embodiment, the number of the element can be multiple, and the term "one" cannot be understood as a limitation on the number.

[0033] Reference Figures 1 to 5 According to a preferred embodiment of the present application, an automatic optical cover plate cleaning device will be described in detail below, wherein the automatic optical cover plate cleaning device comprises an ultrasonic cleaning tank 10, a conveying mechanism 20, a clamping mechanism 30 and an automatic material taking mechanism, wherein the ultrasonic cleaning tank 10 has a cleaning tank 101, the conveying mechanism 20 comprises a plurality of rotating rollers and a conveying belt 23 arranged around the plurality of rotating rollers in a manner capable of being driven to rotate in a direction, at least a part of the conveying belt 23 extends into the cleaning tank 101 in a manner capable of being immersed in a cleaning liquid in the cleaning tank 101 for cleaning optical cover plates, and at least a part of the conveying belt 23 is located outside the cleaning tank 101 for feeding optical cover plates, and any rotating roller is driven to rotate in a direction by a rotating element (such as a servo motor), and in addition, a plurality of supporting rollers can be provided as needed for supporting the conveying belt 23; the clamping mechanism 30 comprises guide rails 31 and two sliding frames 32 movably and symmetrically arranged on each guide rail 31, the guide rails 31 are uniformly arranged on the surface of the conveying belt 23, and the extension direction of the guide rails 31 is perpendicular to the conveying direction of the conveying belt 23, the inner side end of the sliding frame 32 is symmetrically provided with a limiting part 301 suitable for being vertically inserted and fixed to the optical cover plate, the sliding frames 32 on each guide rail 31 are not only symmetrical in position, but also symmetrical in moving direction in a manner capable of being synchronously relatively close or relatively far away from each other, the automatic material taking mechanism comprises a monitoring element, a material taking element and an electric control cabinet, the monitoring element, the material taking element and the rotating element are electrically connected through the electric control cabinet, the monitoring element can be an incremental encoder driven to rotate by the conveying belt 23, which converts the rotated unit angle into the displacement amount of the conveying belt 23, and further converts the rotation number or rotation time of the rotating element, or can be a counter arranged on one side of the conveying belt 23, which reads the rotation number of the conveying belt 23 through cooperation with an inductive element on the conveying belt 23, and further converts the rotation number or rotation time of the rotating element. After the monitoring element monitors that the rotating element rotates a predetermined number of times or for a predetermined time, the material taking element is controlled by the electric control cabinet to automatically take out the optical cover plate inserted in the sliding frame 32 in sequence.

[0034] Therefore, the automatic cleaning device provided by the application can automatically clean optical cover plates of different types and for different purposes to different degrees. The cleaning degree is determined by the number of rotations of the conveying belt 23 or the rotation time at a predetermined rotation speed without considering the type of cleaning liquid. In addition, the optical cover plates cleaned are automatically removed by the taking element after cleaning. Therefore, the automatic cleaning efficiency of the optical cover plates can be effectively improved while ensuring the cleaning quality of the optical cover plates, and the device can automatically unload the optical cover plates. The overall device has a clever design and low cost.

[0035] In one embodiment, the longitudinal section of the cleaning tank 101 is an inverted isosceles trapezoid.

[0036] Meanwhile, among the plurality of rotating rollers, two of the rotating rollers are defined as first rotating rollers 21, and the two first rotating rollers 21 are arranged in parallel in the cleaning tank 101, so that the optical cover plate can be automatically cleaned by being immersed in the cleaning liquid when the optical cover plate rotates between the two first rotating rollers 21. Two of the rotating rollers are defined as second rotating rollers 22, and the two second rotating rollers 22 are arranged in parallel above the cleaning tank 101 to facilitate the feeding of the optical cover plate. The first rotating rollers 21 and the second rotating rollers 22 surround an inverted isosceles trapezoid that matches the shape of the cleaning tank 101, thereby facilitating the automatic unloading of the optical cover plate on the basis of facilitating the cleaning and feeding of the optical cover plate. The automatic unloading part will be described in detail later.

[0037] It is worth mentioning that the specifications of the optical cover plates may be inconsistent in different industries or for different purposes, or in the same industry. Therefore, how to make the automatic cleaning device very convenient and fast to clean optical cover plates of different specifications is an important means to save cleaning costs. Therefore, as a preferred embodiment, the guide rail 31 is provided with a bidirectional threaded screw rod 33 at the top, and all the bidirectional threaded screw rods 33 are connected at the same end by a chain wheel 34 and a chain.

[0038] Further, the sliding frame 32 comprises a mounting frame 321, a limiting frame 322 and an elastic member 323 connecting the mounting frame 321 and the limiting frame 322, wherein the bottom of the mounting frame 321 is provided with a guide seat 324, and two guide seats 324 on the same guide rail 31 are respectively provided with a positive and negative threaded channel matched with the bidirectional threaded rod 33, so that when the bidirectional threaded rod 33 rotates, the two guide seats 324 on the same guide rail 31 can be synchronously close or away from each other, wherein the limiting frame 322 is located on the inner side of the mounting frame 321, and the limiting part 301 is located on the inner side end of the limiting frame 322, so that when any bidirectional threaded rod 33 is driven to rotate manually or by an automatic rotating device, all bidirectional threaded rods 33 will rotate synchronously based on the matching relationship between the chain wheel 34 and the chain belt, thereby simultaneously driving two sliding frames 32 on the same guide rail 31 to be close or away from each other, and then the limiting part 301 is suitable for clamping and fixing optical cover plates of different sizes, thereby greatly expanding the application range of the automatic cleaning device.

[0039] Further preferably, the limiting frame 322 is L-shaped, having a vertical part 3221 and a horizontal part 3222, wherein the limiting part 301 is arranged on the inner side end of the vertical part 3221, and the horizontal part 3222 extends away from the mounting frame 321, and the top of the horizontal part 3222 is provided with a supporting part 325 suitable for supporting the optical cover plate, so that when the optical cover plate is inserted and fixed between two sliding frames 32 on the same guide rail 31, it can be supported to a certain height away from the horizontal part, thereby reducing the contact area between the optical cover plate and the sliding frame 32, so that the cleaning liquid can infiltrate the bottom area of the optical cover plate, and the cleaning effect is better.

[0040] Further preferably, a plurality of rollers 326 are arranged at intervals along the extension direction on the inner side end of the vertical part, and a plurality of limiting grooves are arranged at the middle position of the extension direction of the rollers 326, and the limiting part 301 is formed by the cooperation of the limiting grooves, and when the optical cover plate is inserted, the rollers 326 rotate correspondingly, and the elastic member 323 is compressed, which is also convenient for quick installation and fixation of the optical cover plate. In addition, compared with the conventional fixed mode of the through groove, the contact area between the rollers 326 and the optical cover plate can be reduced by more than 50%, so that most positions of the side end of the optical cover plate can also be cleaned, and the cleaning effect can be further improved.

[0041] Preferably, the roller 326 is a rubber roller, which can rotate to facilitate the insertion of the optical cover plate while reducing the probability of damaging the optical cover plate.

[0042] Furthermore, considering that during the rotational cleaning of optical cover plates, the cleaning time or number of rotations may differ for different applications or types of optical cover plates, even though the elastic elements 323 on both sides can provide good holding force based on the rebound effect during long-term rotational cleaning, there is still a risk that the optical cover plate may detach from the limiting part 301. This is because the two sides of the optical cover plate are blocked by the limiting grooves, meaning the only way for the optical cover plate to detach from the limiting part 301 is by moving in the opposite direction through the limiting grooves. To ensure that the optical cover plate does not easily detach from the limiting part 301 even during long-term cleaning, as a preferred embodiment, combined with... Figure 4 The vertical part is provided with a mounting groove 302 suitable for mounting the roller 326, and a fixing rod 327 is provided in the mounting groove 302. At the same time, the roller 326 is mounted on the corresponding fixing rod 327 through a bearing sleeve, and the roller 326 has ratchet teeth 3261 evenly arranged on both sides of the bearing along the circumference. Meanwhile, the fixing rod 327 is provided with a pawl 3271 that cooperates with the ratchet teeth 3261, so that the roller 326 can only rotate in one direction in the direction in which the optical cover plate is inserted and fixed, and cannot rotate in the opposite direction. In this way, based on the rebound force of the elastic members 323 on both sides and the friction between the roller 326 and the optical cover plate, it can be ensured that the optical cover plate is not easily dislodged from the limiting part 301 during continuous cleaning, which further improves the stability and reliability of the automatic cleaning device.

[0043] In one embodiment, the support portion 325 is an arc-shaped or semi-circular protruding structure, and the top of the support portion 325 is provided with a support groove 303 that fits with the optical cover plate. It is only used to support the optical cover plate and does not play a restrictive role when the optical cover plate is separated from the limiting portion 301. In addition, the arc-shaped or semi-circular protruding structure can reduce the contact area between the support portion 325 and the optical cover plate, thereby increasing the washable area of ​​the optical cover plate and improving the cleaning quality.

[0044] More preferably, combined with Figure 5The taking element comprises a support frame 41, a taking plate 42 and a telescopic element 43, wherein the support frame 41 is arranged at one side of the ultrasonic cleaning tank 10, the telescopic element 43 is fixedly arranged at the upper part or top of the support frame 41, the taking plate 42 is parallel to the conveying belt 23 arranged at the side inclined part, the taking plate 42 is in the shape of wide in the middle and narrow at both ends in the width direction, the length of the taking plate 42 is smaller than the distance between the corresponding horizontal parts 3222 of the adjacent two guide rails 31 in the length direction, the length direction is opposite to the conveying direction of the conveying belt 23, the taking plate 42 is connected to the output end of the telescopic element 43 in a manner that the taking plate 42 can be driven to relatively approach or move away from the conveying belt 23, and the telescopic element 43 is electrically connected to the control cabinet, so that when the monitoring element monitors that the optical cover plate has been cleaned for a predetermined number of times or time, the control cabinet can reduce the rotating speed of the rotating element or temporarily stop the rotation, then control the telescopic element 43 such as telescopic cylinder to extend forward by a predetermined distance, so that the taking plate 42 can be inserted between the adjacent two horizontal parts 3222 and opposite to the horizontal parts 3222, and then control the rotating element to rotate again, because the taking plate 42 is wide in the middle and narrow at both ends, when the conveying belt advances, the taking plate 42 will gradually separate the two horizontal parts 3222, and the optical cover plate between the two separated horizontal parts 3222 will automatically fall down under the action of gravity, thereby completing automatic unloading.

[0045] For the structure of the taking plate 42, the wide middle part and the narrow both ends can be directly inclined to transition or arc transition, in addition, the narrow both ends are symmetric to each other at the middle position, when the taking plate completes automatic unloading and the optical cover plate is separated from the limiting part 301, the horizontal parts 3222 on both sides can be slowly reset based on the same structure on the other side of the taking plate 42, instead of directly and violently rebounding by the elastic member 323, thereby improving the stability and safety of the automatic cleaning device, and the elastic member 323 is not easy to be damaged, thereby improving the service life of the elastic member 323 and reducing the cost.

[0046] In addition, the wide middle part of the taking plate 42 maintains the width size and extends for a predetermined length, so as to ensure that the optical cover plate can be completely unloaded, and avoid that the horizontal parts 3222 are quickly rebounded by the elastic member 323 due to the too small distance between the wide middle part and the optical cover plate, so as to clamp the optical cover plate which is not completely unloaded.

[0047] It should be noted that the special structure of the taking plate 42 with narrow ends and wide middle part can also unload optical cover plates of different sizes based on the narrow ends, as long as the narrow part is smaller than the distance between the two horizontal parts and the wide part is larger than the distance between the two horizontal parts.

[0048] Further preferably, the support frame 41 is provided with a sliding plate 44 below the taking plate 42, and the sliding plate 44 extends obliquely, wherein the high end of the sliding plate 44 is connected to the top side wall of the ultrasonic cleaning tank 10, and the bottom end of the sliding plate 44 extends away from the ultrasonic cleaning tank 10, so that the optical cover plates falling down can slide along the sliding plate 44 to a predetermined position, achieving automatic transfer after automatic unloading, and the materials are not easy to accumulate locally.

[0049] Those skilled in the art should understand that the above description and the embodiments of the present application shown in the drawings are only examples and do not limit the present application. The advantages of the present application have been fully and effectively achieved. The functions and structural principles of the present application have been shown and described in the embodiments, and the embodiments of the present application can be modified or changed in any way without departing from the principles.

Claims

1. An optical cover plate automatic cleaning device, characterized by, The application relates to an ultrasonic cleaning device for optical cover plates. The device comprises: an ultrasonic cleaning tank, wherein the ultrasonic cleaning tank has a cleaning tank; a conveying mechanism, wherein the conveying mechanism comprises a conveying belt and a plurality of rotating rollers, the conveying belt is arranged around the rotating rollers in a manner that can be driven to rotate in a certain direction, at least part of the conveying belt extends into the cleaning tank in a manner that can be immersed in cleaning liquid in the cleaning tank, and at least part of the conveying belt is located outside the cleaning tank for feeding the optical cover plates, any rotating roller is driven to rotate in a certain direction by a rotating element; a clamping mechanism, wherein the clamping mechanism comprises a guide rail and two sliding frames movably arranged on the guide rail in a symmetrical manner, the guide rail is uniformly arranged on the surface of the conveying belt, and the extension direction of the guide rail is perpendicular to the conveying direction of the conveying belt, the inner side end of the sliding frame is symmetrically provided with a limiting part suitable for being vertically inserted and fixed with the optical cover plate; an automatic material taking mechanism, wherein the automatic material taking mechanism comprises a monitoring element, a material taking element and an electric control cabinet, the monitoring element, the material taking element and the rotating element are electrically connected through the electric control cabinet, after the monitoring element monitors that the rotating element rotates for a predetermined number of turns or for a predetermined time, the material taking element is controlled by the electric control cabinet to automatically take the optical cover plate inserted in the sliding frame in sequence; the sliding frame comprises a limiting frame, the limiting frame is L-shaped and has a vertical part and a horizontal part, the limiting part is arranged at the inner side end of the vertical part, the horizontal part extends inwardly at the bottom of the vertical part, the top of the horizontal part is provided with a supporting part suitable for supporting the optical cover plate, so that when the optical cover plate is inserted and fixed between two sliding frames located on the same guide rail, the optical cover plate can be supported to a certain height and be away from the horizontal part; 2. The optical cover plate automatic cleaning device according to claim 1, wherein, the material taking element comprises a supporting frame, a material taking plate and an extension element, the supporting frame is arranged on one side of the ultrasonic cleaning tank, the extension element is fixedly arranged on the upper part of the supporting frame, the material taking plate is parallel to the conveying belt located on the side inclined part, the material taking plate is wide in the middle and narrow at both ends in the width direction, the size of the material taking plate in the length direction is smaller than the size between the corresponding horizontal parts on the adjacent two guide rails, and the length direction is opposite to the conveying direction of the conveying belt, the material taking plate is connected to the output end of the extension element in a manner that can be driven to relatively approach or be away from the conveying belt, and the extension element is electrically connected with the electric control cabinet. the longitudinal section of the cleaning tank is an inverted isosceles trapezoid; 3. The apparatus of claim 2, wherein the cleaning fluid is applied to the optical cover plate by a spray nozzle. in the plurality of rotating rollers, two rotating rollers are defined as first rotating rollers, the two first rotating rollers are arranged in parallel in the cleaning tank, two rotating rollers are defined as second rotating rollers, the two second rotating rollers are arranged in parallel above the cleaning tank, and the first rotating rollers and the second rotating rollers surround an inverted isosceles trapezoid matched with the shape of the cleaning tank. the guide rail is provided with a double-thread screw rod at the top, and all the double-thread screw rods are connected at the same end through a chain wheel and a chain belt. The sliding frame further comprises a mounting frame and an elastic member elastically connecting the mounting frame and the limiting frame, wherein the bottom of the mounting frame is provided with a guide seat, and two guide seats on the same guide rail are respectively provided with positive and negative threaded channels matched with the bidirectional threaded rod, and the limiting frame is located at the inner side of the mounting frame.

4. The optical cover plate automatic cleaning apparatus of claim 3, wherein The vertical part is provided with a plurality of rollers at the inner end and spaced apart along the extension direction, and a plurality of limiting grooves are arranged at the middle position of the extension direction, and the limiting part is formed by the cooperation of the limiting grooves.

5. The apparatus of claim 4, wherein the cleaning fluid is applied to the optical cover plate by a spray nozzle. The rollers are rubber rollers.

6. The apparatus of claim 4, wherein the cleaning solution is a mixture of water and alcohol. The vertical part is provided with a mounting groove suitable for mounting the rollers, and a fixing rod is arranged in the mounting groove, the roller is mounted on the corresponding fixing rod through a bearing, and the roller is uniformly provided with a ratchet on both sides of the bearing along the circumferential direction, and the fixing rod is provided with a pawl matched with the ratchet, so that the roller can only rotate in one direction towards the optical cover plate.

7. The apparatus of claim 6, wherein the cleaning fluid is applied to the optical cover plate by a spray nozzle. The support part is a semicircular convex structure, and the top of the support part is provided with a support groove matched with the gap of the optical cover plate.

8. The optical cover plate automatic cleaning apparatus of claim 1, wherein The support frame is provided with a sliding plate below the material taking plate, and the sliding plate extends obliquely, wherein the high end is connected with the top side wall of the ultrasonic cleaning tank, and the bottom end extends away from the ultrasonic cleaning tank.

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