A high-efficiency automated inspection device for watch glass

Abstract

This invention relates to the field of watch glass inspection, specifically to a high-efficiency automated inspection device for watch glass. It includes a cleanroom enclosure, a conveyor belt inside the enclosure, a fixture on the conveyor belt for positioning the glass, an atomizing tube above the conveyor belt, and a wiping mechanism and two cameras located beside the conveyor belt. The device pre-treats the glass surface with moisture through the atomizing tube, then removes surface contaminants through the wiping mechanism, and finally uses the dual cameras to visually inspect the glass from different angles, effectively distinguishing between genuine scratches and false defects. The wiping mechanism uses reusable cleaning cloths, which can be washed and dried in real time during the wiping process to ensure consistent cleaning results. This device simulates the interference elimination and comprehensive evaluation process of manual inspection, offering advantages such as high inspection accuracy, high automation, and excellent cleaning effect. It can significantly improve the inspection efficiency and quality of watch glass and reduce production costs.

Description

Technical Field

[0001] This invention relates to the field of watch glass inspection, specifically to a high-efficiency automated inspection device for watch glass. Background Technology

[0002] As a precision optical component, the surface quality of watch glass directly affects the appearance and performance of a watch. Traditional watch glass inspection mainly relies on manual visual inspection or single-function mechanical testing equipment, which has many technical limitations.

[0003] While manual inspection can distinguish false defects through multi-angle observation and wiping, it has significant limitations: First, manual inspection is inefficient and cannot meet the needs of large-scale assembly line production. Moreover, long hours of work can easily lead to visual fatigue, resulting in missed detections. Second, manual inspection is greatly affected by subjective factors. Different inspectors may have different judgment standards for the same defect, resulting in inconsistent and unreliable inspection results.

[0004] While mechanical inspection equipment can automate inspections, it falls short in terms of defect identification accuracy. Existing machine vision systems typically use fixed-angle light sources and cameras, making it difficult to effectively distinguish between genuine scratches on glass surfaces and false defects such as water stains and fingerprints. For example, when water stains or dirt are present on the glass surface, the reflection of light at a fixed angle may produce image features similar to scratches, leading to misjudgments. To reduce misjudgments, manual inspection often involves wiping the watch glass with a soft cloth to identify genuine and false defects. However, existing inspection equipment cannot simulate the wiping and cleaning process with a soft cloth. Therefore, it often uses air blowing devices to perform a simple treatment on the glass to be inspected. However, air blowing can only remove surface dust and is ineffective at cleaning stubborn fingerprints and water stains, and the cleaning process may introduce new contamination.

[0005] In addition, traditional assembly line inspection equipment cannot perform multi-angle inspection. Due to the high reflectivity of watch glass surfaces, a light source at a single angle can easily create glare or overexposure areas on the glass surface, obscuring defect details. Furthermore, some minute defects are only visible at specific angles, and fixed-angle inspection methods cannot capture these defects, increasing the risk of missed detections. Summary of the Invention

[0006] Therefore, it is necessary to provide a high-efficiency automated inspection device for watch glass to address the problems of existing technologies.

[0007] To address the problems in the existing technology, the technical solution adopted by this invention is as follows:

[0008] A high-efficiency automated inspection device for watch glass, comprising:

[0009] The cleanroom enclosure has an internal conveyor belt. The conveyor belt is slidably connected to a fixture for positioning the glass. An atomizing tube is located above the conveyor belt, and a mounting bracket is located on the side of the conveyor belt that is fixedly connected to the cleanroom enclosure.

[0010] A wiping mechanism is provided on the side of the card holder. The wiping mechanism includes a platform fixedly connected to the card holder. A reciprocating base is provided on the upper part of the platform. Four side frames are provided on the upper part of the base. A rectangular cleaning cloth is rotatably provided on one side of the four side frames near the middle of the base.

[0011] The cleaning cloth has a brush in the middle, a nozzle at the top of the brush to spray water onto the brush, a nozzle on one side of the brush to spray cleaning liquid onto the cleaning cloth, and a hot air nozzle on the other side to dry the cleaning cloth.

[0012] The end of the card slot is equipped with a turntable, and two cameras are located on the side of the turntable closest to the conveyor belt.

[0013] Furthermore, a reciprocating cylinder is fixedly connected to the upper part of the platform, and the output end of the reciprocating cylinder is fixedly connected to the base.

[0014] Furthermore, two bearing cylinders are fixedly connected to the upper end of the base, and a support is provided on the top of the base. The output ends of the two bearing cylinders are fixedly connected to the lower end of the support, respectively.

[0015] Furthermore, the upper end of the support is provided with two pneumatic slides, and the two sides of each pneumatic slide are fixedly connected to the lower ends of the two side frames respectively.

[0016] Each pneumatic slide is equipped with a cover on top, and the two ends of the cover are fixedly connected to the upper ends of the two side frames. A tensioner is provided on the side of the cover near the cleaning cloth to keep the cleaning cloth taut.

[0017] Furthermore, two servo motors are provided on one side of the support. The two servo motors are fixedly connected to the adjacent side frame through the motor frame. Two main rollers that abut against the inner side of the cleaning cloth are rotatably provided above each pneumatic slide. A secondary roller that abuts against the outer side of the cleaning cloth is rotatably provided on the side of each main roller.

[0018] Each main roller shaft has a main pulley at both ends that is rotatably connected to the side frame. The main pulleys located on the same side frame are connected by belt drive. The main pulley near the servo motor is fixedly connected to the output end of the servo motor on the same axis.

[0019] Each main pulley is fixedly connected to a main gear on the same axis. A secondary gear that meshes with the main gear is rotatably provided on the side of the main gear. The secondary gear is fixedly connected to the end of the secondary roller shaft.

[0020] Furthermore, a brush holder is fixedly connected to one side of the platform, and four limiting rods are slidably connected to the upper end of the brush holder. The lower ends of the four limiting rods are fixedly connected to the upper end of the brush, respectively.

[0021] Each limiting rod is fitted with a limiting spring. The upper end of the limiting spring is fixedly connected to the brush holder, and the lower end is fixedly connected to the limiting rod.

[0022] Furthermore, each limiting rod is fixedly connected to a limiting ring at its upper end, and the limiting ring presses against the upper end of the brush holder when the cleaning cloth is not in contact with the brush.

[0023] Furthermore, the upper end of the brush has perforations that are interlaced with the bristles, and the lower end of the cleaning cloth, away from the brush, has a liquid collection hopper that is fixedly connected to the support. The nozzle is fixedly connected to the brush holder and its output end passes through the brush holder and is set downwards.

[0024] Furthermore, two squeezing seats are provided below the hot air head. The two squeezing seats are respectively located on both sides of the cleaning cloth, and the two ends of the squeezing seats are respectively fixedly connected to the corresponding two side frames.

[0025] Each squeezing seat has a guide seat on the side near the cleaning cloth. A squeezing roller is rotatably mounted on the side of the guide seat near the cleaning cloth. The squeezing roller is covered with a rubber sleeve that abuts against the cleaning cloth.

[0026] Two guide shafts are fixedly connected to the side of the guide seat away from the cleaning cloth. The guide shafts are slidably connected to the squeezing seat. Each guide shaft is fitted with a squeezing spring. One end of the squeezing spring is fixedly connected to the squeezing seat, and the other end is fixedly connected to the guide seat.

[0027] Furthermore, the rubber sleeve is formed with grooves arranged at equal angles along the circumference.

[0028] The beneficial effects of this invention compared to the prior art are:

[0029] Firstly, this device uses dual-camera multi-angle imaging technology, combined with different angle supplementary lighting methods, to effectively distinguish between real scratches on the watch glass surface and false defects such as water stains and fingerprints. Compared with traditional single-angle detection equipment and manual inspection, the false judgment rate is reduced, and the detection accuracy is significantly improved.

[0030] Secondly, this device automatically wipes the glass surface before testing, effectively removing water stains, fingerprints and other contaminants to avoid interference with the test results. The wiping mechanism uses a reusable cleaning cloth, combined with an integrated cleaning process of cleaning liquid spraying, brush cleaning and hot air drying, ensuring that the cleaning cloth always maintains good cleaning ability. Compared with traditional cleaning devices, the cleaning effect is improved and no manual intervention is required, realizing the automation and continuity of the cleaning process.

[0031] Thirdly, the turntable in this device drives two cameras to take pictures around the glass from multiple angles, simulating the multi-angle observation method during manual inspection. Through the preset multi-angle shooting program, the system can capture defect information from various angles on the glass surface, significantly improving the success rate of defect detection and providing data support for subsequent defect classification and analysis. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of an embodiment;

[0033] Figure 2 This is a three-dimensional exploded view of the embodiment from another angle;

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

[0035] Figure 4 This is a partial structural diagram of an embodiment;

[0036] Figure 5 This is a three-dimensional structural diagram of the card holder, platform, and base in the embodiment;

[0037] Figure 6 yes Figure 5 Enlarged view of the structure at point B in the middle;

[0038] Figure 7 This is a three-dimensional structural schematic diagram of the main roller shaft, main gear, auxiliary roller shaft, and auxiliary gear in the embodiment;

[0039] Figure 8 This is a front view of the card holder, platform, and base in the embodiment;

[0040] Figure 9 This is a half-sectional view of the card holder, platform, and base in the embodiment;

[0041] Figure 10 yes Figure 9 Enlarged view of the structure at point C;

[0042] Figure 11 yes Figure 9 Enlarged view of the structure at point D.

[0043] The numbers on the map are:

[0044] 1. Cleanroom enclosure; 2. Conveyor belt; 3. Fixture; 4. Glass; 5. Atomizing tube; 6. Holder; 8. Platform; 9. Reciprocating cylinder; 10. Base; 11. Pneumatic slide; 12. Tensioner; 13. Cover; 14. Bearing cylinder; 15. Support; 17. Side frame; 18. Nozzle; 19. Hot air head; 20. Extrusion roller; 21. Rubber sleeve; 22. Groove; 23. Guide shaft; 24. 25. Compression spring; 26. Compression seat; 27. Guide seat; 28. Main roller shaft; 29. ​​Main gear; 20. Secondary gear; 31. Secondary roller shaft; 32. Cleaning cloth; 33. Servo motor; 34. Main pulley; 35. Plate brush; 36. Nozzle; 37. Perforation; 38. Liquid collection hopper; 39. Brush seat; 40. Limiting rod; 41. Limiting ring; 42. Limiting spring; 43. Turntable; 44. Camera. Detailed Implementation

[0045] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0046] refer to Figures 1 to 11 A high-efficiency automated inspection device for watch glass, comprising:

[0047] The cleanroom housing 1 has a conveyor belt 2 inside. The conveyor belt 2 is slidably connected to a clamp 3 for positioning the glass 4. An atomizing tube 5 for wetting the upper surface of the glass 4 is set above the conveyor belt 2. A card seat 6 is fixedly connected to the cleanroom housing 1 on the side of the conveyor belt 2.

[0048] A wiping mechanism for cleaning the upper surface of glass 4 is provided on the side of the card holder 6. The wiping mechanism includes a platform 8 fixedly connected to the card holder 6. A reciprocating base 10 is provided on the upper end of the platform 8. Four side frames 17 are provided on the upper end of the base 10. A rectangular cleaning cloth 31 is rotatably provided on one side of the four side frames 17 near the middle of the base 10.

[0049] A brush 34 is provided in the middle of the cleaning cloth 31. A nozzle 35 for spraying clean water onto the brush 34 is provided at the upper end of the brush 34. A nozzle 18 for spraying cleaning liquid onto the cleaning cloth 31 is provided on one side of the brush 34, and a hot air head 19 for drying the cleaning cloth 31 is provided on the other side.

[0050] The end of the card holder 6 is provided with a turntable 42, and two cameras 43 are provided on the side of the turntable 42 near the conveyor belt 2.

[0051] When this device is in operation, the conveyor belt 2 moves the glass 4, and the fixture 3 positions the glass 4 during the inspection and cleaning process. Each group of glass 4 is inspected in batches in the cleanroom 1. During the inspection process, the atomizing tube 5 first sprays water mist onto the upper surface of the glass 4 to wet the upper surface of the glass 4. After being wetted, the glass 4 is wiped clean by the wiping mechanism and finally moved to the bottom of the turntable 42. The two cameras 43, which are fixedly connected to the turntable 42, will perform visual inspection on the glass 4. The two cameras 43 can take pictures of the glass 4 from different angles. On the one hand, it is convenient to distinguish false defects (such as stains that are visible from one angle but not from other angles). On the other hand, the surface of the glass 4 has high reflectivity, and a single angle light source may produce glare or overexposure. The two cameras 43, with supplementary light from different angles (such as one equipped with a coaxial light and the other with an oblique light), can eliminate reflective interference through brightness comparison of multi-view images to ensure that defect details are clearly visible.

[0052] As the glass 4 moves to the middle of the cleaning cloth 31, the four side frames 17 move downward until the cleaning cloth 31 is close to the upper surface of the glass 4. Then, as the base 10 moves back and forth, the cleaning cloth 31 wipes the upper surface of the glass 4. After wiping, the four side frames 17 move upward to ensure that the cleaning cloth 31 is separated from the upper part of the glass 4. The above process is repeated until all the glass 4 in a group has been wiped.

[0053] During repeated wiping, stains will adhere to the side of the cleaning cloth 31 that contacts the upper surface of the glass 4. At this time, the cleaning cloth 31 rotates, and as it passes the nozzle 18, the nozzle 18 sprays cleaning fluid onto the cleaning cloth 31. Subsequently, the cleaning cloth 31 continues to move to the lower end of the brush 34, while the reciprocating movement of the base 10 causes the stationary brush 34 to clean the moving cleaning cloth 31. The spray nozzle 35 sprays clean water onto the brush 34 to improve the cleaning quality. After cleaning, the cleaning cloth 31 is finally moved to the hot air head 19 for drying, in preparation for the next wiping operation.

[0054] In order to enable the reciprocating movement of the base 10, and thus ensure that the cleaning cloth 31 can be wiped through the reciprocating movement, the following features are specifically provided:

[0055] like Figure 5As shown, a reciprocating cylinder 9 is fixedly connected to the upper end of the platform 8, and the output end of the reciprocating cylinder 9 is fixedly connected to the base 10. During the operation of the device, the output end of the reciprocating cylinder 9 performs linear reciprocating motion, driving the base 10, which is fixedly connected to it, to slide horizontally back and forth along the surface of the platform 8. By precisely controlling the stroke and frequency of the reciprocating cylinder 9, the wiping speed of the cleaning cloth 31 on the surface of the glass 4 can be adjusted to ensure uniform and efficient wiping effect. When the conveyor belt 2 transports the glass 4 to the wiping station, the reciprocating cylinder 9 drives the base 10 to move synchronously with the cleaning cloth 31, achieving full coverage wiping of the surface of the glass 4.

[0056] To enable the side frame 17 to be vertically adjustable so that when wiping the glass 4, the cleaning cloth 31 moves downward, so that the upper end of the cleaning cloth 31 is taut on the upper surface of the glass 4, and when cleaning, the cleaning cloth 31 moves upward, so that the lower end of the cleaning cloth 31 is taut on the lower end of the brush 34, the following features are specifically provided:

[0057] like Figure 5 As shown, two bearing cylinders 14 are fixedly connected to the upper end of the base 10, and a support 15 is provided above the base 10. The output ends of the two bearing cylinders 14 are fixedly connected to the lower end of the support 15 respectively.

[0058] During wiping operations, the piston rod of the supporting cylinder 14 extends, pushing the support 15, the side frame 17 mounted on it, and the cleaning cloth 31 downwards as a whole, so that the cleaning cloth 31 fits tightly against the upper surface of the glass 4. At this time, the cleaning cloth 31 is in a taut state, which can effectively remove stains and water stains from the surface of the glass 4. When the cleaning cloth 31 needs cleaning, the supporting cylinder 14 retracts, the support 15 rises, aligning the lower end of the cleaning cloth 31 with the brush 34 and tightening it, creating conditions for the self-cleaning process of the cleaning cloth 31. Through this vertical position adjustment, the optimal contact state of the cleaning cloth 31 in different working modes is achieved.

[0059] To ensure the cleaning cloth 31 is taut and to prevent it from being too loose and affecting the wiping effect on the glass 4, as well as its subsequent cleaning effect, the following features are specifically designed:

[0060] like Figure 5 As shown, the upper end of the support 15 is provided with two pneumatic slides 11, and the two sides of each pneumatic slide 11 are fixedly connected to the lower ends of the two side frames 17 respectively.

[0061] Each pneumatic slide 11 is provided with a cover 13 above it. The two ends of the cover 13 are fixedly connected to the upper ends of the two side frames 17 respectively. The side of the cover 13 near the cleaning cloth 31 is provided with a tensioner 12 to keep the cleaning cloth 31 taut.

[0062] After the cleaning cloth 31 is installed, the pneumatic slide 11 drives the two corresponding side frames 17 to move in opposite directions or back to back in the horizontal direction, thereby adjusting the tension of the cleaning cloth 31. The tensioner 12 on the cover 13 ensures that the cleaning cloth 31 remains taut during movement. When the cleaning cloth 31 becomes loose due to prolonged use, the tensioner 12 can automatically compensate for the tension, preventing the cleaning cloth 31 from wrinkling or slipping during wiping or cleaning, thus ensuring the stability of the wiping and cleaning effect.

[0063] In order to drive the cleaning cloth 31 to rotate and simultaneously limit its movement, the following features are specifically provided:

[0064] like Figure 7 and Figure 9 As shown, two servo motors 32 are provided on one side of the support 15. The two servo motors 32 are fixedly connected to the adjacent side frame 17 through the motor frame. Two main roller shafts 27 that abut against the inner side of the cleaning cloth 31 are rotatably provided above each pneumatic slide 11. A secondary roller shaft 30 that abuts against the outer side of the cleaning cloth 31 is rotatably provided on the side of each main roller shaft 27.

[0065] Each main roller shaft 27 has a main pulley 33 at both ends that is rotatably connected to the side frame 17. The main pulleys 33 located on the same side frame 17 are connected by belt drive. The main pulley 33 near the servo motor 32 is fixedly connected to the output end of the servo motor 32 on the same axis.

[0066] Each main pulley 33 is coaxially fixedly connected to a main gear 28, and a secondary gear 29 is rotatably provided on the side of the main gear 28 to mesh with the main gear 28. The secondary gear 29 is fixedly connected to the end of the secondary roller shaft 30.

[0067] During the rotation of the cleaning cloth 31, the servo motor 32 drives the main pulley 33, which is fixedly connected to its output end, to rotate. The two main pulleys 33, through belt transmission, then drive the corresponding main roller shaft 27 to rotate synchronously. The inner side of the main roller shaft 27 contacts the inner surface of the cleaning cloth 31, providing rotational driving force. Simultaneously, the main gear 28 rotates with the main pulleys 33, driving the meshing auxiliary gear 29 and auxiliary roller shaft 30 to rotate in the opposite direction. The outer side of the auxiliary roller shaft 30 contacts the outer surface of the cleaning cloth 31, forming a clamping and guiding effect on the cleaning cloth 31. Through the coordinated work of the main roller shaft 27 and the auxiliary roller shaft 30, the smooth rotation of the cleaning cloth 31 is achieved.

[0068] To achieve elastic contact between the brush 34 and the lower end of the cleaning cloth 31, the following features are specifically provided:

[0069] like Figure 5 and Figure 11As shown, a brush holder 38 is fixedly connected to one side of the platform 8, and four limiting rods 39 are slidably connected to the upper end of the brush holder 38. The lower ends of the four limiting rods 39 are fixedly connected to the upper end of the brush 34 respectively.

[0070] Each limiting rod 39 is fitted with a limiting spring 41. The upper end of the limiting spring 41 is fixedly connected to the brush seat 38, and the lower end is fixedly connected to the limiting rod 39.

[0071] When the brush 34 contacts the cleaning cloth 31, the preload of the limiting spring 41 causes the brush 34 to press against the surface of the cleaning cloth 31 with appropriate pressure. When there are stubborn stains on the surface of the cleaning cloth 31, the brush 34 can elastically displace due to the unevenness of the surface of the cleaning cloth 31, ensuring that the bristles are in full contact with the cleaning cloth 31 and improving the cleaning effect. The sliding engagement between the limiting rod 39 and the brush holder 38 ensures the stable movement of the brush 34 in the vertical direction and prevents the brush 34 from shifting or shaking during the cleaning process.

[0072] To limit the position of the brush 34 and prevent it from displacing excessively downward under the action of the clamping spring, the following features are specifically provided:

[0073] like Figure 11 As shown, each limiting rod 39 is fixedly connected to a limiting ring 40 at its upper end. The limiting ring 40 presses against the upper end of the brush holder 38 when the cleaning cloth 31 is not in contact with the brush 34.

[0074] When the cleaning cloth 31 is not in contact with the brush 34, the engagement of the retaining ring 40 with the brush holder 38 restricts the downward displacement of the retaining rod 39, thereby preventing excessive compression of the retaining spring 41 that could cause the brush 34 to be positioned too low. This structure ensures that, in standby mode, a proper initial gap is maintained between the brush 34 and the cleaning cloth 31, preventing friction between the cleaning cloth 31 and the brush 34 during rotation and extending the service life of both the cleaning cloth 31 and the brush 34. Simultaneously, the retaining ring 40 also facilitates the installation and removal of the brush 34.

[0075] To facilitate the flow of clean water sprayed from the nozzle 35 through the brush 34 onto the cleaning cloth 31, the following features are specifically provided:

[0076] like Figure 6 As shown, the upper end of the brush 34 has perforations 36 that are interlaced with the bristles. The lower end of the cleaning cloth 31, away from the brush 34, is provided with a liquid collection hopper 37 that is fixedly connected to the support 15. The nozzle 35 is fixedly connected to the brush holder 38 and its output end passes through the brush holder 38 and is set downwards.

[0077] During the water spraying process of nozzle 35, clean water enters the brush 34 through the through holes on brush holder 38 and directly acts on the surface of cleaning cloth 31 through perforations 36. The staggered arrangement of perforations 36 allows clean water to be evenly distributed among the bristles of brush 34, improving the rinsing effect on cleaning cloth 31. The collection hopper 37 collects the wastewater generated during the cleaning process, ensuring the cleanliness of the testing environment.

[0078] To improve the drying speed of the hot air head 19, the following features are specifically designed:

[0079] like Figure 7 and Figure 10 As shown, two squeezing seats 25 are provided below the hot air head 19. The two squeezing seats 25 are respectively located on both sides of the cleaning cloth 31, and the two ends of the squeezing seats 25 are respectively fixedly connected to the corresponding two side frames 17.

[0080] Each squeezing seat 25 is provided with a guide seat 26 on the side near the cleaning cloth 31. A squeezing roller 20 is rotatably provided on the side of the guide seat 26 near the cleaning cloth 31. A rubber sleeve 21 that abuts against the cleaning cloth 31 is provided on the outside of the squeezing roller 20.

[0081] Two guide shafts 23 are fixedly connected to the side of the guide seat 26 away from the cleaning cloth 31. The guide shafts 23 are slidably connected to the squeezing seat 25. Each guide shaft 23 is fitted with a squeezing spring 24. One end of the squeezing spring 24 is fixedly connected to the squeezing seat 25, and the other end is fixedly connected to the guide seat 26.

[0082] Before the cleaning cloth 31 passes through the hot air head 19, the squeeze roller 20, under the action of the squeeze spring 24, applies a certain pressure to the cleaning cloth 31, squeezing out most of the water. The sliding fit between the guide seat 26 and the guide shaft 23 ensures that the squeeze roller 20 can automatically adjust its position according to the thickness of the cleaning cloth 31, maintaining a stable squeezing pressure. The elastic deformation capability of the rubber sleeve 21 further improves the water squeezing effect while avoiding damage to the cleaning cloth 31. After the squeezing pretreatment, the moisture content of the cleaning cloth 31 is significantly reduced, thereby shortening the drying time of the hot air head 19 and improving the overall work efficiency.

[0083] To improve the drainage capacity of the rubber sleeve 21, the following features are specifically designed:

[0084] like Figure 10 As shown, the rubber sleeve 21 has grooves 22 arranged in an equal angle along the circumferential direction.

[0085] When the squeeze roller 20 squeezes the cleaning cloth 31, the grooves 22 on the surface of the rubber sleeve 21 provide drainage channels for water, allowing the squeezed water to flow quickly along the grooves 22 to both ends of the squeeze roller 20, preventing water from accumulating in the squeezing area and reducing the squeezing effect. The equiangular array design of the grooves 22 ensures the uniformity of the squeezing process and further improves the drainage capacity of the rubber sleeve 21. At the same time, the presence of the grooves 22 also increases the friction between the rubber sleeve 21 and the cleaning cloth 31, which helps to ensure the smooth transport of the cleaning cloth 31.

[0086] The detailed working principle of this device is as follows: The watch glass 4 to be tested is precisely placed on the conveyor belt 2 by the feeding mechanism, and the clamp 3 ensures that the glass 4 remains stable during the testing and cleaning process. The conveyor belt 2 is driven by the drive unit and transports the glass 4 to each workstation according to the preset rhythm. The entire process is carried out in the cleanroom 1 to avoid interference from external impurities during testing.

[0087] When the glass 4 is brought to the bottom of the atomizing tube 5, the atomizing tube 5 will spray water mist onto the upper surface of the glass 4, so that a uniform water film is formed on the upper surface of the glass 4. The water film helps to present the surface condition of the glass 4 more clearly in the future, and also helps the cleaning cloth 31 to wipe and clean the surface of the glass 4.

[0088] Subsequently, glass 4 is delivered to the wiping mechanism. The support cylinder 14 drives the bracket 15 to descend, causing the cleaning cloth 31 to adhere to the upper surface of glass 4. The reciprocating cylinder 9 drives the base 10 to move back and forth, and the cleaning cloth 31 wipes the surface of glass 4 accordingly. The wiping stroke is set according to the size of glass 4 to ensure full coverage. For stubborn stains, the servo motor 32 rotates the cleaning cloth 31, aligning unused areas with the stains and increasing the number of wipes to enhance the cleaning effect.

[0089] After wiping, glass 4 is conveyed to the dual-camera 43 inspection station. A turntable 42 moves the two cameras 43 to adjust their angles, simulating manual multi-angle inspection. One camera 43 is equipped with a coaxial light source for detecting minor scratches, while the other is equipped with an oblique light source to highlight surface irregularities. Images captured by the cameras 43 are transmitted in real-time to the processing system, which analyzes the images using algorithms to distinguish between real and false defects. For suspected defects, the turntable 42 moves the cameras 43 to scan from multiple angles, combining features from different angles to determine the nature of the defect.

[0090] After the cleaning cloth 31 finishes wiping, it enters the self-cleaning process. The servo motor 32 drives the cleaning cloth 31 to rotate, first passing it through the nozzle 18, where the nozzle 18 sprays cleaning liquid onto it; then it moves to the brush 34, and the base 10 moves back and forth to make the brush 34 clean the cleaning cloth 31, while the nozzle 35 sprays clean water onto the brush 34 to assist in cleaning; the wastewater after cleaning is collected by the collection hopper 37. Afterwards, the cleaning cloth 31 moves to the hot air head 19, where the squeeze roller 20 squeezes out the water under the action of the squeeze spring 24, and then dries it through the hot air head 19 for the next use.

[0091] After inspection, the system categorizes the glass into four classes based on the results. Qualified products proceed to the next process, while unqualified products are sorted to a specific area. Simultaneously, relevant defect information is recorded to provide a basis for production optimization. The coordinated operation of each stage achieves an automated process from glass loading and inspection to unloading.

[0092] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A high-efficiency automated inspection device for watch glass, characterized in that, include: The cleanroom housing (1) is equipped with a conveyor belt (2) inside. The conveyor belt (2) is slidably connected to a clamp (3) for positioning the glass (4). An atomizing tube (5) is provided above the conveyor belt (2). A card seat (6) is fixedly connected to the cleanroom housing (1) on the side of the conveyor belt (2). A wiping mechanism is provided on the side of the card holder (6). The wiping mechanism includes a platform (8) fixedly connected to the card holder (6). A reciprocating base (10) is provided on the upper end of the platform (8). Four side frames (17) are provided on the upper end of the base (10). A rectangular cleaning cloth (31) is rotatably provided on one side of the four side frames (17) near the middle of the base (10). A brush (34) is provided in the middle of the cleaning cloth (31). A nozzle (35) for spraying clean water onto the brush (34) is provided at the upper end of the brush (34). A nozzle (18) for spraying cleaning liquid onto the cleaning cloth (31) is provided on one side of the brush (34), and a hot air nozzle (19) for drying the cleaning cloth (31) is provided on the other side. The end of the card holder (6) is provided with a turntable (42), and two cameras (43) are provided on the side of the turntable (42) near the conveyor belt (2). A reciprocating cylinder (9) is fixedly connected to the upper end of the platform (8), and the output end of the reciprocating cylinder (9) is fixedly connected to the base (10); Two bearing cylinders (14) are fixedly connected to the upper end of the base (10), and a support (15) is provided above the base (10). The output ends of the two bearing cylinders (14) are fixedly connected to the lower end of the support (15). The upper end of the support (15) is provided with two pneumatic slides (11), and the two sides of each pneumatic slide (11) are fixedly connected to the lower ends of two side frames (17); Each pneumatic slide (11) is provided with a cover (13) above it. The two ends of the cover (13) are fixedly connected to the upper ends of the two side frames (17). The cover (13) is provided with a tensioner (12) on the side near the cleaning cloth (31) to keep the cleaning cloth (31) taut. Two servo motors (32) are provided on one side of the support (15). The two servo motors (32) are fixedly connected to the adjacent side frame (17) through the motor frame. Two main rollers (27) that abut against the inner side of the cleaning cloth (31) are rotatably provided above each pneumatic slide (11). A secondary roller (30) that abuts against the outer side of the cleaning cloth (31) is rotatably provided on the side of each main roller (27). Each main roller shaft (27) has a main pulley (33) at both ends that is rotatably connected to the side frame (17). The main pulleys (33) located on the same side frame (17) are connected by belt drive. The main pulley (33) close to the servo motor (32) is fixedly connected to the output end of the servo motor (32) on the same axis. Each main pulley (33) is coaxially fixedly connected to a main gear (28), and a secondary gear (29) is rotatably provided on the side of the main gear (28) to mesh with the main gear (28). The secondary gear (29) is fixedly connected to the end of the secondary roller shaft (30).

2. The high-efficiency automated inspection device for watch glass according to claim 1, characterized in that, A brush holder (38) is fixedly connected to one side of the platform (8). Four limiting rods (39) are slidably connected to the upper end of the brush holder (38). The lower ends of the four limiting rods (39) are fixedly connected to the upper end of the plate brush (34). Each limiting rod (39) is fitted with a limiting spring (41) on its outside. The upper end of the limiting spring (41) is fixedly connected to the brush seat (38), and the lower end is fixedly connected to the limiting rod (39).

3. The high-efficiency automated inspection device for watch glass according to claim 2, characterized in that, Each limiting rod (39) is fixedly connected to a limiting ring (40) at its upper end. The limiting ring (40) is pressed against the upper end of the brush holder (38) when the cleaning cloth (31) is not in contact with the brush (34).

4. The high-efficiency automated inspection device for watch glass according to claim 3, characterized in that, The upper end of the brush (34) is formed with perforations (36) that are interlaced with the bristles. The lower end of the cleaning cloth (31) away from the brush (34) is provided with a liquid collection hopper (37) that is fixedly connected to the support (15). The nozzle (35) is fixedly connected to the brush holder (38) and the output end passes through the brush holder (38) and is set downward.

5. The high-efficiency automated inspection device for watch glass according to claim 1, characterized in that, Two squeezing seats (25) are provided below the hot air head (19). The two squeezing seats (25) are respectively located on both sides of the cleaning cloth (31). The two ends of the squeezing seats (25) are respectively fixedly connected to the corresponding two side frames (17). Each squeezing seat (25) has a guide seat (26) on the side near the cleaning cloth (31). The guide seat (26) has a squeezing roller (20) rotatably mounted on the side near the cleaning cloth (31). The squeezing roller (20) is fitted with a rubber sleeve (21) that abuts against the cleaning cloth (31). Two guide shafts (23) are fixedly connected to the side of the guide seat (26) away from the cleaning cloth (31). The guide shafts (23) are slidably connected to the squeezing seat (25). Each guide shaft (23) is fitted with a squeezing spring (24). One end of the squeezing spring (24) is fixedly connected to the squeezing seat (25), and the other end is fixedly connected to the guide seat (26).

6. The high-efficiency automated inspection device for watch glass according to claim 5, characterized in that, The rubber sleeve (21) is formed with grooves (22) arranged at equal angles along the circumference.

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