Efficient assembly line detection device for watch glass

Abstract

The invention relates to the field of watch glass detection, in particular to an efficient assembly line detection device for watch glass. Comprising a dust-free machine box, a conveying belt arranged in the dust-free machine box, a clamp loaded on the conveying belt and used for positioning glass, an atomizing pipe is arranged above the conveying belt, and a wiping mechanism and two cameras are arranged beside the conveying belt. According to the device, the atomization pipe is used for carrying out wetting pretreatment on the surface of glass, then the wiping mechanism is used for removing surface stains, finally, the double cameras are used for carrying out visual inspection on the glass from different angles, and real scratches and pseudo defects are effectively distinguished. And the wiping mechanism adopts cleaning cloth capable of being recycled, the cleaning cloth can be cleaned and dried in real time in the wiping process, and the stability of the cleaning effect is ensured. The device simulates the interference elimination and comprehensive evaluation process of manual detection, has the advantages of high detection precision, high automation degree, good cleaning effect and the like, can remarkably improve the detection efficiency and quality of watch glass, and reduces the production cost.

Description

Technical Field

[0001] The present invention relates to the field of watch glass detection, and in particular to a high-efficiency assembly line detection device for watch glass. Background Art

[0002] As a precision optical component, the surface quality of watch glass directly impacts the appearance and performance of a watch. Traditional watch glass inspection relies primarily on manual visual inspection or single-function mechanical testing equipment, which presents numerous technical bottlenecks.

[0003] Although manual inspection can distinguish false defects through multi-angle observation and wiping judgment, it has significant limitations: first, manual inspection is inefficient and cannot meet the needs of large-scale assembly line production. Long-term work can easily lead to visual fatigue, which in turn leads to missed detections. Second, manual inspection is greatly influenced by subjective factors. Different inspectors may have different judgment standards for the same defect, resulting in a lack of consistency and reliability in the inspection results.

[0004] Although mechanical inspection equipment can achieve automated inspection, it is insufficient in terms of defect recognition accuracy. Existing mechanical vision systems usually use fixed-angle light sources and cameras, which make it difficult to effectively distinguish between real scratches on the glass surface and false defects such as water stains and fingerprints. For example, when there are water stains or stains on the glass surface, the reflection of light at a fixed angle may produce image features similar to scratches, leading to misjudgment. To reduce misjudgment, manual inspections are often equipped with soft cloths to wipe the watch glass and then identify true defects and false defects. However, because existing inspection equipment cannot simulate the wiping and cleaning of soft cloths, they often use air blowing equipment to perform simple treatment on the glass to be inspected. However, air blowing can only remove dust on the glass surface and is not effective for cleaning stubborn fingerprints and water stains. In addition, the cleaning process may introduce new contamination.

[0005] Furthermore, traditional production line inspection equipment cannot perform multi-angle inspection. Because watch glass surfaces are highly reflective, a single-angle light source can easily create glare or overexposed areas on the glass surface, obscuring defect details. Furthermore, some minor defects are only visible at specific angles, making them undetectable with fixed-angle inspection methods, increasing the risk of missed detection. Summary of the Invention

[0006] Based on this, it is necessary to provide a high-efficiency assembly line detection device for watch glass to address the existing technical problems.

[0007] In order to solve the problems of the prior art, the technical solution adopted by the present invention is: An efficient assembly line inspection device for watch glass, comprising: A dust-free chassis with a conveyor belt inside, a fixture for positioning the glass is slidably connected to the conveyor belt, an atomizing pipe is provided above the conveyor belt, and a card seat fixed to the dust-free chassis is provided on the side of the conveyor belt; A wiping mechanism is provided on the side of the card seat, which includes a carrier fixedly connected to the card seat, a reciprocating base is provided on the upper end of the carrier, and four side frames are provided on the upper end of the base. A rectangular cleaning cloth is rotated on one side of the four side frames near the middle of the base; A scrubbing brush is provided in the middle of the cleaning cloth, a nozzle for spraying clean water onto the scrubbing brush is provided at the upper end of the brush plate, a nozzle for spraying cleaning liquid onto the cleaning cloth is provided on one side of the scrubbing brush, and a hot air head for drying the cleaning cloth is provided on the other side; A turntable is provided at the end of the card seat, and two cameras are provided on the side of the turntable close to the conveyor belt.

[0008] Furthermore, a reciprocating cylinder is fixedly connected to the upper end of the carrier, and an output end of the reciprocating cylinder is fixedly connected to the base.

[0009] Furthermore, the upper end of the base is fixedly connected to two bearing cylinders, a bracket is provided above the base, and the output ends of the two bearing cylinders are fixedly connected to the lower ends of the brackets respectively.

[0010] Furthermore, two pneumatic slides are provided at the upper end of the bracket, and the two sides of each pneumatic slide are respectively fixedly connected to the lower ends of the two side frames; A buckle cover is provided above each pneumatic slide, and both ends of the buckle cover are respectively fixedly connected to the upper ends of the two side frames. A tensioner for keeping the cleaning cloth taut is provided on the side of the buckle cover close to the cleaning cloth.

[0011] Furthermore, two servo motors are provided on one side of the bracket, and the two servo motors are respectively connected to the adjacent side frames through the motor frame. Two main rollers are rotatably provided above each pneumatic slide to abut against the inner side of the cleaning cloth, and auxiliary rollers are rotatably provided on the side of each main roller to abut against the outer side of the cleaning cloth. Each main roller shaft is provided with a main pulley at both ends thereof which is connected to the side frame for rotation. The main pulleys located at the same side frame are connected via a belt drive. The main pulley close to the servo motor is fixedly connected to the output end of the servo motor coaxially. Each main pulley is coaxially fixedly connected with a main gear, and a sub-gear meshing with the main gear is rotatably provided beside the main gear, and the sub-gear is fixedly connected to the end of the sub-roller shaft.

[0012] Furthermore, a brush holder is fixedly connected to one side of the carrier, and the upper end of the brush holder is slidably connected to four limit rods, and the lower ends of the four limit rods are respectively fixedly connected to the upper ends of the scrubbing brushes; A limiting spring is sleeved on the outside of each limiting rod. The upper end of the limiting spring is fixedly connected to the brush seat, and the lower end is fixedly connected to the limiting rod.

[0013] Furthermore, the upper end of each limiting rod is respectively fixedly connected to a limiting clamp ring, and the limiting clamp ring is pressed against the upper end of the brush holder when the cleaning cloth is not in contact with the scrub brush.

[0014] Furthermore, the upper end of the scrub brush is formed with perforations arranged in an alternating manner with the bristles, and the lower end of the cleaning cloth is provided with a liquid collecting hopper fixedly connected to the bracket on the side away from the scrub brush. The nozzle is fixedly connected to the brush bracket and the output end is arranged downward through the brush bracket.

[0015] Furthermore, two extrusion seats are provided below the hot air head. The two extrusion seats are respectively provided on both sides of the cleaning cloth, and the two ends of the extrusion seats are respectively fixedly connected to the corresponding two side frames. Each squeezing seat is provided with a guide seat on the side close to the cleaning cloth, and a squeezing roller is rotatably provided on the side of the guide seat close to the cleaning cloth. The outer sleeve of the squeezing roller is provided with a rubber sleeve that abuts against the cleaning cloth. 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 extrusion seat. An extrusion spring is sleeved on the outside of each guide shaft. One end of the extrusion spring is fixedly connected to the extrusion seat, and the other end is fixedly connected to the guide seat.

[0016] Furthermore, the rubber sleeve is formed with grooves in an array at equal angles along the circumferential direction.

[0017] Compared with the prior art, the present invention has the following beneficial effects: First, this device uses dual-camera multi-angle imaging technology, combined with fill-in lighting at different angles, 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 positive rate is reduced, significantly improving detection accuracy. Second, the device automatically wipes the glass surface before testing, effectively removing contaminants such as water stains and fingerprints, preventing them from interfering with test results. The wiping mechanism uses a reusable cleaning cloth, and an integrated cleaning process that combines liquid spraying, scrubbing with a brush, and hot air drying ensures the cloth maintains excellent cleaning performance. Compared to traditional cleaning devices, this device offers improved cleaning results and eliminates the need for manual intervention, achieving an automated and continuous cleaning process. Third: The turntable in this device drives the dual cameras to shoot multi-angle shots around the glass, simulating the multi-angle observation method during manual inspection. Through the preset multi-angle shooting program, the system can capture defect information at all angles on the glass surface, significantly improving the success rate of defect detection and providing data support for subsequent defect classification and analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the embodiment; Figure 2 is a schematic diagram of a three-dimensional structure decomposition from another angle of the embodiment; Figure 3 yes Figure 2 A magnified view of the structure at center A; Figure 4 It is a partial structural diagram of an embodiment; Figure 5 Schematic diagram of the three-dimensional structure of the card holder, the carrier and the base in the embodiment; Figure 6 yes Figure 5 A magnified view of the structure at point B in the middle; Figure 7 Schematic diagram of the three-dimensional structure of the main roller shaft, main gear, auxiliary roller shaft and auxiliary gear in the embodiment; Figure 8 1 is a front view of the card holder, the carrier and the base in the embodiment; Figure 9 is a half-section view of the card holder, the carrier and the base in the embodiment; Figure 10 yes Figure 9 A magnified view of the structure at point C in the middle; Figure 11 yes Figure 9 Enlarged view of the structure at point D in the middle.

[0019] The numbers in the figure are: 1. Dust-free chassis; 2. Conveyor belt; 3. Clamp; 4. Glass; 5. Atomizing tube; 6. Card holder; 8. Carrier; 9. Reciprocating cylinder; 10. Base; 11. Pneumatic slide; 12. Tensioner; 13. Snap cover; 14. Carrier cylinder; 15. Support; 17. Side frame; 18. Nozzle; 19. Hot air head; 20. Extrusion roller; 21. Rubber sleeve; 22. Groove; 23. Guide shaft; 24. Extrusion spring; 25. Extrusion seat; 26. Guide seat; 27. Main roller; 28. Main gear; 29. ​​Sub-gear; 30. Sub-roller; 31. Cleaning cloth; 32. Servo motor; 33. Main pulley; 34. Scrub brush; 35. Nozzle; 36. Perforation; 37. Liquid collecting hopper; 38. Brush seat; 39. Limit rod; 40. Limit snap ring; 41. Limit spring; 42. Turntable; 43. Camera. DETAILED DESCRIPTION

[0020] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] refer to Figures 1 to 11 , an efficient assembly line inspection device for watch glass, comprising: A dust-free chassis 1 is provided with a conveyor belt 2 inside. A fixture 3 for positioning a glass 4 is slidably connected to the conveyor belt 2. An atomizing tube 5 for moistening the upper surface of the glass 4 is provided above the conveyor belt 2. A card holder 6 fixedly connected to the dust-free chassis 1 is provided beside the conveyor belt 2. A wiping mechanism for cleaning the upper surface of the glass 4 is provided next to the base 6. The wiping mechanism includes a carrier 8 fixedly connected to the base 6. A reciprocating base 10 is provided on the upper end of the carrier 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 scrubbing brush 34 is provided in the middle of the cleaning cloth 31, and a nozzle 35 is provided at the upper end of the brush plate to spray clean water onto the scrubbing brush 34. A nozzle 18 is provided on one side of the scrubbing brush 34 to spray cleaning liquid onto the cleaning cloth 31, and a hot air head 19 is provided on the other side to dry the cleaning cloth 31. A turntable 42 is provided at the end of the card holder 6 , and two cameras 43 are provided on a side of the turntable 42 close to the conveyor belt 2 .

[0022] When the device is in operation, the conveyor belt 2 drives the glass 4 to move, and the clamp 3 positions the glass 4 during the inspection and cleaning process. Each group of glass 4 is inspected in batches in the dust-free chassis 1. During the inspection process, the atomizing tube 5 first sprays water mist onto the upper surface of the glass 4 to moisten the upper surface of the glass 4. The moistened glass 4 is wiped clean by the wiping mechanism and finally moves to the bottom of the turntable 42. The two cameras 43 fixed to the turntable 42 will perform visual inspection on the glass 4. The two cameras 43 can shoot the glass 4 from different angles. On the one hand, it is convenient to distinguish pseudo defects (such as stains that are visible at a certain angle but not at other angles). On the other hand, the surface of the glass 4 is highly reflective, and a single-angle light source may produce glare or overexposure. The two cameras 43 are combined with fill lights at different angles (such as one equipped with coaxial light and the other equipped with oblique light). The brightness contrast of multi-angle images can eliminate reflection interference to ensure that the details of the defects are clearly visible.

[0023] When 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, during the reciprocating movement of the base 10, the cleaning cloth 31 wipes the upper surface of the glass 4. After wiping is completed, the four side frames 17 move upward to ensure that the cleaning cloth 31 is separated from the upper end of the glass 4. The above process is repeated until all the glasses 4 in a group are wiped.

[0024] During repeated wiping, stains may accumulate on the side of the cleaning cloth 31 that contacts the upper surface of the glass 4. At this point, the cleaning cloth 31 rotates and, as it passes the nozzle 18, sprays cleaning liquid onto the cleaning cloth 31. The cleaning cloth 31 then continues to move to the lower end of the scrubbing brush 34. The reciprocating motion of the base 10 causes the stationary scrubbing brush 34 to clean the moving cleaning cloth 31. The nozzle 35 sprays clean water onto the scrubbing brush 34 to improve 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.

[0025] In order to achieve the reciprocating movement of the base 10 and thereby ensure that the cleaning cloth 31 can wipe the cleaning cloth 31 through the reciprocating movement, the following features are specifically provided: like Figure 5 As shown, a reciprocating cylinder 9 is fixedly connected to the upper end of the carrier 8, and the output end of the reciprocating cylinder 9 is fixedly connected to the base 10. During operation, the output end of the reciprocating cylinder 9 performs linear reciprocating motion, driving the base 10, to which it is fixed, to slide horizontally back and forth along the surface of the carrier 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, ensuring uniform and efficient wiping. 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 of the surface of the glass 4.

[0026] In order to achieve the vertical position adjustment of the side frame 17, so that when wiping the glass 4, the cleaning cloth 31 moves downward so that the upper end of the cleaning cloth 31 is tightened against the upper surface of the glass 4, and when cleaning with the cleaning cloth 31, the cleaning cloth 31 moves upward so that the lower end of the cleaning cloth 31 is tightened against the lower end of the scrubbing brush 34, the following features are specifically provided: like Figure 5 As shown, two bearing cylinders 14 are fixedly connected to the upper end of the base 10 , a bracket 15 is provided above the base 10 , and the output ends of the two bearing cylinders 14 are fixedly connected to the lower ends of the bracket 15 respectively.

[0027] During the wiping operation, the piston rod of the support cylinder 14 extends, pushing the bracket 15, the side frame 17 mounted thereon, and the cleaning cloth 31 downward as a whole, allowing the cleaning cloth 31 to closely contact the upper surface of the glass 4. At this point, the cleaning cloth 31 is in a tensioned state, effectively removing dirt and water stains from the surface of the glass 4. When the cleaning cloth 31 needs to be cleaned, the support cylinder 14 retracts, and the bracket 15 rises, aligning the lower end of the cleaning cloth 31 with the scrubbing brush 34 and tightening it, creating conditions for the self-cleaning process of the cleaning cloth 31. This vertical position adjustment ensures optimal contact of the cleaning cloth 31 in different operating modes.

[0028] In order to keep the cleaning cloth 31 tight and prevent the cleaning cloth 31 from being loosened and affecting the wiping effect on the glass 4 and the subsequent cleaning effect thereof, the following features are specifically provided: like Figure 5 As shown, two pneumatic slides 11 are provided at the upper end of the bracket 15, and both sides of each pneumatic slide 11 are respectively fixedly connected to the lower ends of the two side frames 17; A buckle cover 13 is provided above each pneumatic slide 11. The two ends of the buckle cover 13 are fixedly connected to the upper ends of the two side frames 17. A tensioner 12 is provided on the side of the buckle cover 13 close to the cleaning cloth 31 to keep the cleaning cloth 31 taut.

[0029] After the cleaning cloth 31 is installed, the pneumatic slide 11 drives the corresponding side frames 17 to move horizontally toward or away from each other, thereby adjusting the tension of the cleaning cloth 31. The tensioner 12 on the buckle cover 13 ensures that the cleaning cloth 31 remains taut during movement. If the cleaning cloth 31 becomes loose due to prolonged use, the tensioner 12 automatically compensates for the tension, preventing the cleaning cloth 31 from wrinkling or slipping during wiping or cleaning, ensuring consistent wiping and cleaning results.

[0030] In order to drive the cleaning cloth 31 to rotate and limit the cleaning cloth 31, the following features are also provided: like Figure 7 and Figure 9 As shown, two servo motors 32 are provided on one side of the bracket 15. The two servo motors 32 are respectively fixedly connected to the adjacent side frames 17 through motor frames. Two main rollers 27 are rotatably provided above each pneumatic slide 11 to abut against the inner side of the cleaning cloth 31. A secondary roller 30 is rotatably provided on the side of each main roller 27 to abut against the outer side of the cleaning cloth 31. Each of the two ends of the main roller shaft 27 is provided with a main pulley 33 rotatably connected to the side frame 17. The main pulleys 33 located on the same side frame 17 are connected via a belt drive. The main pulley 33 near the servo motor 32 is coaxially fixed to the output end of the servo motor 32. Each main pulley 33 is coaxially fixedly connected to a main gear 28 . A secondary gear 29 is rotatably provided beside the main gear 28 and meshes with the main gear 28 . The secondary gear 29 is fixedly connected to the end of the secondary roller shaft 30 .

[0031] During the rotation of the cleaning cloth 31, the servo motor 32 drives the primary pulley 33, which is fixed to its output end. The two primary pulleys 33, through a belt transmission, then drive the corresponding primary rollers 27 to rotate synchronously. The inner side of the primary roller 27 contacts the inner surface of the cleaning cloth 31, providing the rotational driving force. Simultaneously, the main gear 28 rotates with the primary pulley 33, driving the meshing secondary gear 29 and secondary roller 30 to rotate in the opposite direction. The outer side of the secondary roller 30 contacts the outer surface of the cleaning cloth 31, clamping and guiding the cleaning cloth 31. The coordinated operation of the primary roller 27 and secondary roller 30 ensures smooth rotation of the cleaning cloth 31.

[0032] In order to achieve elastic contact between the scrubbing brush 34 and the lower end of the cleaning cloth 31, the following features are specifically provided: like Figure 5 and Figure 11 As shown, a brush holder 38 is fixedly connected to one side of the carrier 8, and four limiting rods 39 are slidably connected to the upper end of the brush holder 38, and the lower ends of the four limiting rods 39 are respectively fixedly connected to the upper ends of the scrubbing brush 34; A limiting spring 41 is sleeved on the outside of each limiting rod 39 . The upper end of the limiting spring 41 is fixedly connected to the brush holder 38 , and the lower end is fixedly connected to the limiting rod 39 .

[0033] When the scrubbing brush 34 contacts the cleaning cloth 31, the preload of the limit spring 41 ensures that the scrubbing brush 34 presses against the surface of the cleaning cloth 31 with appropriate pressure. If stubborn stains are found on the surface of the cleaning cloth 31, the scrubbing brush 34 elastically adjusts to the surface irregularities, ensuring full contact between the bristles and the cleaning cloth 31 and enhancing cleaning effectiveness. The sliding engagement of the limit rod 39 and the brush holder 38 ensures stable vertical movement of the scrubbing brush 34, preventing it from shifting or shaking during the cleaning process.

[0034] In order to limit the position of the scrubbing brush 34 and prevent the scrubbing brush 34 from excessively moving downward under the action of the holding spring, the following features are specifically provided: like Figure 11 As shown, the upper end of each limiting rod 39 is fixedly connected to a limiting snap ring 40 , and the limiting snap ring 40 is pressed against the upper end of the brush holder 38 when the cleaning cloth 31 is not in contact with the scrubbing brush 34 .

[0035] When the cleaning cloth 31 is not in contact with the scrubbing brush 34, the contact between the limiting snap ring 40 and the brush holder 38 limits the downward movement of the limiting rod 39, thereby preventing the limiting spring 41 from being overcompressed and causing the scrubbing brush 34 to be positioned too low. This structure ensures an appropriate initial gap between the scrubbing brush 34 and the cleaning cloth 31 in the standby mode, preventing friction between the cleaning cloth 31 and the scrubbing brush 34 during rotation, thereby extending the service life of the cleaning cloth 31 and the scrubbing brush 34. The limiting snap ring 40 also facilitates installation and removal of the scrubbing brush 34.

[0036] In order to facilitate the clean water sprayed from the nozzle 35 to fall onto the cleaning cloth 31 through the scrubbing brush 34, the following features are also provided: like Figure 6 As shown, the upper end of the scrub brush 34 is formed with perforations 36 arranged in an alternating manner with the bristles, and the lower end of the cleaning cloth 31 is provided with a liquid collecting hopper 37 fixedly connected to the bracket 15 on the side away from the scrub brush 34, and the nozzle 35 is fixedly connected to the brush holder 38 and the output end is arranged downward through the brush holder 38.

[0037] During the spraying process of nozzle 35, clean water enters scrubbing brush 34 through the through-holes in brush holder 38 and directly impacts the surface of cleaning cloth 31 through perforations 36. The staggered arrangement of perforations 36 evenly distributes the clean water between the bristles of scrubbing brush 34, improving the rinsing effect on cleaning cloth 31. A liquid collection hopper 37 collects wastewater generated during the cleaning process, ensuring a clean testing environment.

[0038] In order to increase the drying speed of the hot air head 19, the following features are also provided: like Figure 7 and Figure 10 As shown, two extrusion seats 25 are provided below the hot air head 19. The two extrusion seats 25 are respectively provided on both sides of the cleaning cloth 31. The two ends of the extrusion seats 25 are respectively fixedly connected to the corresponding two side frames 17. Each squeezing seat 25 is provided with a guide seat 26 on one side close to the cleaning cloth 31. A squeezing roller 20 is rotatably provided on the side of the guide seat 26 close to the cleaning cloth 31. The outer surface of the squeezing roller 20 is provided 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 extrusion seat 25. An extrusion spring 24 is respectively sleeved on the outside of each guide shaft 23. One end of the extrusion spring 24 is fixedly connected to the extrusion seat 25, and the other end is fixedly connected to the guide seat 26.

[0039] Before the cleaning cloth 31 passes through the hot air head 19, the squeezing roller 20, driven by the squeezing spring 24, applies a certain amount of pressure to the cleaning cloth 31, squeezing out most of the moisture from the cleaning cloth 31. The sliding fit between the guide seat 26 and the guide shaft 23 ensures that the squeezing roller 20 automatically adjusts its position as the thickness of the cleaning cloth 31 changes, maintaining a stable squeezing force. The elastic deformation capability of the rubber sleeve 21 further enhances the squeezing effect while preventing 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 overall work efficiency.

[0040] In order to improve the drainage capacity of the rubber sleeve 21, the following features are specifically provided: like Figure 10 As shown, the rubber sleeve 21 is formed with grooves 22 in an array at equal angles along the circumferential direction.

[0041] As the squeeze roller 20 squeezes the cleaning cloth 31, the grooves 22 on the surface of the rubber sleeve 21 provide a drainage channel for water, allowing the squeezed water to quickly flow along the grooves 22 to the ends of the squeeze roller 20, preventing water accumulation in the squeeze area and reducing the squeezing effect. The equiangular array design of the grooves 22 ensures uniform squeezing and further improves the drainage capacity of the rubber sleeve 21. Furthermore, the presence of the grooves 22 increases friction between the rubber sleeve 21 and the cleaning cloth 31, facilitating smooth conveyance of the cleaning cloth 31.

[0042] The detailed operating principle of this device is as follows: a watch glass 4 to be inspected is precisely placed on a conveyor belt 2 by a loading mechanism. A clamp 3 ensures that the glass 4 remains stable during the inspection and cleaning process. Driven by a drive component, the conveyor belt 2 transports the glass 4 to each workstation at a preset rhythm. The entire process takes place within a dust-free chamber 1, preventing external impurities from interfering with the inspection. When the glass 4 is passed under 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. On the one hand, the water film helps to present the surface condition of the glass 4 more clearly in the future, and on the other hand, it is beneficial for the cleaning cloth 31 to wipe and clean the surface of the glass 4. The glass 4 is then delivered to the wiping mechanism. The support cylinder 14 drives the bracket 15 downward, allowing the cleaning cloth 31 to contact the upper surface of the glass 4. The reciprocating cylinder 9 drives the base 10 back and forth, and the cleaning cloth 31 wipes the surface of the glass 4. The wiping stroke is set according to the size of the glass 4 to ensure full surface coverage. For stubborn stains, the servo motor 32 rotates the cleaning cloth 31, aligning the unused area with the stain and increasing the number of wipes to enhance the cleaning effect. After wiping, the glass 4 is transported to the dual-camera 43 inspection station. A turntable 42 drives the two cameras 43 to adjust their angles, simulating manual multi-angle inspection. One camera 43 uses coaxial light to detect minor scratches, while the other uses oblique light to highlight surface defects. The images captured by cameras 43 are transmitted in real time to the processing system, which uses algorithms to analyze the images and distinguish between real defects and false defects. For suspected defects, the turntable 42 drives the cameras 43 to scan from multiple angles, combining features from different angles to determine the nature of the defect. After the cleaning cloth 31 has finished wiping, it enters the self-cleaning process. The servo motor 32 drives the cleaning cloth 31 to rotate, first passing through the nozzle 18, which sprays cleaning fluid onto it. It then moves to the scrubbing brush 34. The base 10 reciprocates, allowing the scrubbing brush 34 to clean the cleaning cloth 31. Simultaneously, the nozzle 35 sprays clean water onto the scrubbing brush 34 to assist in cleaning. The remaining wastewater is collected by the liquid collection hopper 37. The cleaning cloth 31 then moves to the hot air head 19, where the squeezing roller 20, driven by the squeezing spring 24, squeezes and drains the water. The water is then dried by the hot air head 19 for future use. After the inspection, the system classifies the glass 4 according to the results. Qualified products proceed to the next process, while unqualified products are sorted to a specific area. The system also records relevant defect information to provide a basis for production optimization. The coordinated cooperation of all links realizes an automated process from glass 4 loading and testing to unloading.

[0043] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An efficient assembly line inspection device for watch glass, characterized in that: include: A dust-free chassis (1) is provided with a conveyor belt (2) inside, the conveyor belt (2) is slidably connected to a fixture (3) for positioning the glass (4), an atomizing tube (5) is provided above the conveyor belt (2), and a card seat (6) fixedly connected to the dust-free chassis (1) is provided on the side of the conveyor belt (2); A wiping mechanism is provided on the side of the card seat (6), and the wiping mechanism includes a carrier (8) fixedly connected to the card seat (6), a reciprocating base (10) is provided on the upper end of the carrier (8), four side frames (17) are provided on the upper end of the base (10), and a rectangular cleaning cloth (31) is rotatably provided on one side of the four side frames (17) close to the middle of the base (10); A scrubbing brush (34) is provided in the middle of the cleaning cloth (31), a nozzle (35) for spraying clean water toward the scrubbing brush (34) is provided at the upper end of the brush plate, a nozzle (18) for spraying cleaning liquid toward the cleaning cloth (31) is provided on one side of the scrubbing brush (34), and a hot air head (19) for drying the cleaning cloth (31) is provided on the other side; A turntable (42) is provided at the end of the card seat (6), and two cameras (43) are provided on a side of the turntable (42) close to the conveyor belt (2).

2. The high-efficiency assembly line inspection device for watch glass according to claim 1, characterized in that: The upper end of the carrier (8) is fixedly connected to a reciprocating cylinder (9), and the output end of the reciprocating cylinder (9) is fixedly connected to the base (10).

3. The high-efficiency assembly line inspection device for watch glass according to claim 1, characterized in that: Two bearing cylinders (14) are fixedly connected to the upper end of the base (10), a bracket (15) is provided above the base (10), and the output ends of the two bearing cylinders (14) are respectively fixedly connected to the lower ends of the bracket (15).

4. The high-efficiency assembly line inspection device for watch glass according to claim 3, characterized in that: Two pneumatic slides (11) are provided at the upper end of the bracket (15), and both sides of each pneumatic slide (11) are respectively fixedly connected to the lower ends of the two side frames (17); A buckle cover (13) is provided above each pneumatic slide (11), and both ends of the buckle cover (13) are fixedly connected to the upper ends of the two side frames (17). A tensioner (12) for keeping the cleaning cloth (31) taut is provided on one side of the buckle cover (13) close to the cleaning cloth (31).

5. The high-efficiency assembly line inspection device for watch glass according to claim 4, characterized in that: Two servo motors (32) are provided on one side of the bracket (15), and the two servo motors (32) are respectively fixedly connected to the adjacent side frames (17) through motor frames. Two main rollers (27) are rotatably provided above each pneumatic slide (11) and are abutted against the inner side of the cleaning cloth (31). A secondary roller (30) is rotatably provided on the side of each main roller (27) and is abutted against the outer side of the cleaning cloth (31). Both ends of each main roller shaft (27) are provided with main pulleys (33) rotatably connected to the side frame (17), the main pulleys (33) located at the same side frame (17) are connected via a belt drive, and the main pulley (33) close to the servo motor (32) is coaxially fixedly connected to the output end of the servo motor (32); Each main pulley (33) is coaxially fixedly connected to a main gear (28), and a secondary gear (29) meshing with the main gear (28) is provided on the side of the main gear (28). The secondary gear (29) is fixedly connected to the end of the secondary roller shaft (30).

6. The high-efficiency assembly line inspection device for watch glass according to claim 1, characterized in that: A brush holder (38) is fixedly connected to one side of the carrier (8), and the upper end of the brush holder (38) is slidably connected to four limit rods (39), and the lower ends of the four limit rods (39) are respectively fixedly connected to the upper ends of the plate brush (34); A limiting spring (41) is sleeved on the outside of each limiting rod (39), 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).

7. The high-efficiency assembly line inspection device for watch glass according to claim 6, characterized in that: The upper end of each limiting rod (39) is respectively fixedly connected to a limiting snap ring (40), and the limiting snap ring (40) is pressed against the upper end of the brush holder (38) when the cleaning cloth (31) is not in contact with the scrubbing brush (34).

8. The high-efficiency assembly line inspection device for watch glass according to claim 7, characterized in that: The upper end of the scrub brush (34) is formed with perforations (36) arranged in an interlaced manner with the bristles, and the lower end of the cleaning cloth (31) is provided with a liquid collecting hopper (37) fixedly connected to the bracket (15) on a side away from the scrub brush (34). The nozzle (35) is fixedly connected to the brush holder (38) and the output end passes through the brush holder (38) and is arranged downward.

9. The high-efficiency assembly line inspection device for watch glass according to claim 1, characterized in that: Two extrusion seats (25) are provided below the hot air head (19), and the two extrusion seats (25) are respectively provided on both sides of the cleaning cloth (31), and the two ends of the extrusion seats (25) are respectively fixedly connected to the corresponding two side frames (17); A guide seat (26) is provided on one side of each squeezing seat (25) close to the cleaning cloth (31), and a squeezing roller (20) is rotatably provided on the side of the guide seat (26) close to the cleaning cloth (31). The outer sleeve of the squeezing roller (20) is provided with a rubber sleeve (21) that abuts against the cleaning cloth (31); Two guide shafts (23) are fixedly connected to one side of the guide seat (26) away from the cleaning cloth (31), and the guide shafts (23) are slidably connected to the extrusion seat (25). An extrusion spring (24) is sleeved on the outside of each guide shaft (23), and one end of the extrusion spring (24) is fixedly connected to the extrusion seat (25), and the other end is fixedly connected to the guide seat (26).

10. The high-efficiency assembly line inspection device for watch glass according to claim 9, characterized in that: The rubber sleeve (21) is formed with grooves (22) in an array at equal angles along the circumferential direction.

Images