An optical lens cleaning apparatus
By designing automated optical lens cleaning equipment, the problems of low efficiency and easy damage to lenses in existing equipment have been solved, realizing the automation and high-efficiency production of the lens cleaning process.
Patent Information
- Application Number
- CN202410137563.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2044-01-31
AI Technical Summary
Existing optical lens cleaning equipment requires a lot of manual operation, is inefficient, and the lenses are easily damaged during transportation.
An automated optical lens cleaning device was designed, which includes feeding, cleaning and discharging devices. The device achieves automated lens transfer and ultrasonic cleaning through conveyor belt and loading assembly, reducing manual operation, improving efficiency and protecting the lenses.
It automates the lens cleaning process, saves manpower, improves production efficiency, reduces the risk of lens damage, and increases the yield rate.
Smart Images
Figure CN117816646B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of optical lens processing, in particular to an optical lens cleaning equipment. BACKGROUND
[0002] The optical lens is a transparent material made of glass or resin and other optical materials, which is polished on different devices or apparatuses to achieve the purpose of protection or improvement of optical effect. The optical lens will be contaminated by dirt marks formed by difficult-to-wipe substances during the manufacturing process, so it needs to be cleaned. Generally, the optical lens needs to be cleaned twice after polishing and before coating in the production process. The main pollutants after polishing are grinding powder and asphalt, and a small number of enterprises appear paint chips during processing. The main pollutants before coating are edge grinding oil, fingerprints and dust.
[0003] The common cleaning method at present is ultrasonic cleaning. Ultrasonic cleaning is to use the cavitation effect, acceleration effect and direct flow effect of ultrasonic waves in liquid to directly or indirectly act on liquid and dirt, so that the dirt layer is dispersed, emulsified and peeled off to achieve the purpose of cleaning. However, since the optical lens is a precision component, it must be clamped by a clamp and then carefully cleaned in the chemical solution, otherwise it will cause edge collapse or incomplete cleaning.
[0004] At present, the optical lens is placed on the lens placing rack one by one to play the role of clamping and fixing, and then the lens placing rack is put into the ultrasonic cleaning equipment as a whole to clean the lens with ultrasonic waves and chemical solution. After cleaning, the lens placing rack is taken out, and finally the lenses are taken out one by one. This method needs to use the lens placing rack as an adapter to put the optical lens in and take it out after cleaning, which increases the amount of manual labor and working time, and reduces the efficiency. Therefore, a higher degree of automation of the optical lens cleaning equipment is needed. SUMMARY
[0005] In view of the deficiencies in the prior art, the present application provides an optical lens cleaning equipment which solves the problems of long cleaning time and low working efficiency in the prior art.
[0006] According to an embodiment of the present application, an optical lens cleaning equipment comprises, which are connected in sequence:
[0007] The feeding device comprises a horizontal feeding conveyor belt, the feeding conveyor belt is provided with placing grooves adjacent to each other on the surface, the placing grooves are groove structures, both ends of the placing grooves penetrate through the side surface of the feeding conveyor belt and are communicated to the outside, the extension direction of the placing grooves is perpendicular to the transportation direction of the feeding conveyor belt, and the end of the feeding conveyor belt is provided with a push rod feeder;
[0008] A cleaning device includes a closed cylindrical cleaning tank and a transport mechanism installed inside the cleaning tank. The cleaning tank has an inlet and an outlet on its side. The transport mechanism includes a rotating frame coaxially mounted on the top of the cleaning tank and a loading component installed at the bottom of the rotating frame. A fixed shaft is coaxially connected to the middle of the rotating frame. The loading component is fixedly installed at the bottom of the outer edge of the rotating frame and can move vertically. A push rod ejector is provided at the outlet. An ultrasonic cleaning component is also provided at the bottom of the cleaning tank.
[0009] The discharge device includes a horizontally arranged discharge conveyor belt, the surface of which is provided with placement grooves identical to those on the surface of the feed conveyor belt.
[0010] Furthermore, both the feeding conveyor belt and the discharging conveyor belt are covered with enclosed covers. The cover of the feeding conveyor belt has an opening on the side at the corresponding starting end, and the cover of the discharging conveyor belt has an opening on the side at the corresponding ending end.
[0011] Furthermore, the placement trough includes a first channel and a second channel. The first channel is located above the second channel. The top of the first channel is connected to the space above the feeding conveyor belt or the discharging conveyor belt, and the bottom is connected to the second channel. The bottom of the second channel is located inside the feeding conveyor belt or the discharging conveyor belt. The width of the second channel is smaller than that of the first channel, so that the connection between the first channel and the second channel forms a symmetrical platform on both sides.
[0012] Furthermore, the stage is an inclined structure, tilting downwards from the inner wall of the first channel to the inner wall of the first channel, forming an inclined channel located between the first channel and the second channel.
[0013] Furthermore, the push rod feeder includes a first telescopic rod and a push plate that are perpendicular to each other. The first telescopic rod is horizontally positioned at the same height as the placement groove on the upper surface of the feeding conveyor belt, and the extension direction of the first telescopic rod is parallel to the extension direction of the placement groove. The push plate is a vertically arranged plate structure, and when the push plate moves horizontally, it can pass close to the bottom of the placement groove. The structure of the push rod discharger is the same as that of the push rod feeder, but the push rod discharger is horizontally positioned inside the discharge port of the cleaning tank. The loading assembly passes between the push rod discharger and the discharge port, and the push plate of the push rod discharger passes through the loading assembly when it moves horizontally.
[0014] Furthermore, the rotating frame includes a vertically arranged connecting rod and a support rod radially wound around the outside of the connecting rod. The connecting rod is coaxially and fixedly connected to the fixed shaft. The length of the support rod is matched with the radius of the cleaning tank, so that the loading assembly is close to the side wall of the cleaning tank.
[0015] Furthermore, the loading assembly includes a second telescopic rod, a connecting bracket, and a glass frame. The second telescopic rod is vertically fixed to the bottom of the rotating frame. The connecting bracket is a vertically arranged directional frame structure. The top center of the connecting bracket is connected to the bottom of the second telescopic rod, and the bottom of the connecting bracket is open. The glass frame is a square frame structure. The middle parts of two opposite sides of the glass frame are rotatably connected to the bottom of the two sides of the connecting bracket, so that the glass frame can rotate freely in the vertical direction inside the connecting bracket. Among the two sides of the glass frame that are not connected to the connecting bracket, at least one side is rotatably connected to the adjacent side, and the opening or closing of that side is achieved by rotation.
[0016] Furthermore, the glass frame includes three mutually perpendicular sides, two of which are fixed sides and the other perpendicular side is a movable side. The middle of the fixed side is rotatably connected to the bottom end of the connecting bracket, and the movable side is rotatably connected to any one of the fixed sides, thereby closing or opening the side.
[0017] Furthermore, the inner surfaces of both the fixed side and the movable side are provided with several slots. The length of the slots is much smaller than the length of the fixed side or the movable side. The slots are groove structures with a triangular cross-section, and their width decreases from the outside to the inside.
[0018] Furthermore, a dryer is also installed inside the outer casing of the discharge conveyor belt.
[0019] Compared with the prior art, the present invention has the following beneficial effects:
[0020] The feeding device, cleaning device, and discharging device of this invention form an integrated continuous structure. Once the optical lenses to be cleaned are placed into the feeding conveyor belt of the feeding device, no further manual operation is required. Instead, the equipment automatically transports the lenses through the inlet to the cleaning device, where they are clamped by a carrier component and then immersed in the cleaning solution below the cleaning tank for ultrasonic cleaning. Finally, the lenses are automatically transported out of the cleaning device through the outlet and fall onto the discharging conveyor belt, where they are naturally placed for collection by workers for subsequent processing. This integrated automated cleaning method greatly saves manpower, requiring only one worker to complete the entire operation. Furthermore, it eliminates the need for additional clamps to transfer the optical lenses between different devices, reducing processes, improving production efficiency, reducing potential damage to the optical lenses during transport, and increasing the yield rate. Attached Figure Description
[0021] Figure 1 This is an overall schematic diagram of an embodiment of the present invention.
[0022] Figure 2 This is a top view schematic diagram of the feeding conveyor belt or the discharging conveyor belt in an embodiment of the present invention.
[0023] Figure 3 This is a side view of the placement slot in an embodiment of the present invention.
[0024] Figure 4 This is a schematic diagram of the axial cross-section of the cleaning device in an embodiment of the present invention.
[0025] Figure 5 This is a schematic diagram of the cargo-carrying component in an embodiment of the present invention.
[0026] Figure 6 This is a schematic diagram of the glass-carrying frame in an embodiment of the present invention.
[0027] In the above figures: 1. Feeding device; 2. Cleaning device; 3. Discharging device; 4. Push rod feeder; 5. Ultrasonic cleaning assembly; 6. Loading assembly; 11. Feeding conveyor belt; 12. Placement tank; 21. Cleaning tank; 22. Fixed shaft; 23. Connecting rod; 24. Support rod; 41. First telescopic rod; 42. Push plate; 61. Second telescopic rod; 62. Connecting bracket; 63. Glass frame; 121. First channel; 122. Second channel; 123. Third channel; 621. Rotary motor; 631. Fixed side; 632. Movable side; 633. Slot; 634. Opening and closing motor. Detailed Implementation
[0028] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.
[0029] like Figure 1 As shown in the figure, an embodiment of the present invention proposes an optical lens cleaning device, including a feeding device 1, a cleaning device 2 and a discharging device 3 connected in sequence.
[0030] like Figure 2 As shown, in this embodiment, the feeding device 1 includes a horizontally arranged feeding conveyor belt 11. The surface of the feeding conveyor belt 11 has adjacent placement grooves 12. Each placement groove 12 has a recessed structure, with both ends extending through the side of the feeding conveyor belt 11 and connecting to the outside. The extension direction of the placement groove 12 is perpendicular to the transport direction of the feeding conveyor belt 11. A pusher feeder 4 is provided at the end of the feeding conveyor belt 11. When the pusher feeder 4 is pushed horizontally, the optical lens placed in the placement groove 12 can slide out from one end of the placement groove 12. Similarly, the discharging device 3 includes a horizontally arranged discharging conveyor belt, the surface of which has the same placement grooves 12 as the surface of the feeding conveyor belt 11.
[0031] In this embodiment, the feeding device 1 and the discharging device 3 also include enclosed covers respectively fitted around the feeding conveyor belt 11 and the discharging conveyor belt. The cover outside the feeding conveyor belt 11 has a side opening at the corresponding starting end, allowing workers to place optical lenses into the placement slot 12 for feeding. The cover outside the discharging conveyor belt has a side opening at the corresponding ending end, also facilitating the removal of optical lenses. The covers can isolate external dust and impurities to a certain extent, preventing contamination of the optical lenses. They also prevent dust from accumulating inside the placement slot 12 during idle periods, thus avoiding wear on subsequently placed optical lenses. In addition, a dryer is installed inside the cover outside the discharging conveyor belt to quickly dry the cleaned optical lenses, reducing drying time and improving work efficiency.
[0032] like Figure 3 As shown, in a preferred embodiment, the placement groove 12 includes a first groove 121 and a second groove 122. The first groove 121 is located above the second groove 122. The top of the first groove 121 connects to the space above the feeding conveyor belt 11 or the discharging conveyor belt, and the bottom connects to the second groove 122. The bottom of the second groove 122 is located inside the feeding conveyor belt 11 or the discharging conveyor belt. The width of the second groove 122 is smaller than that of the first groove 121, so that the connection between the first groove 121 and the second groove 122 forms a symmetrical platform. This symmetrical platform structure allows the optical lens to be placed precisely above the platform, contacting the placement groove 12 only through its two edge portions, thus avoiding excessive damage to the lens itself during horizontal sliding. The width of the first groove 121 is precisely matched to the width of the optical lens, while the width of the second groove 122 is as close as possible to the width of the first groove 121, making the width of the platform as narrow as possible. More preferably, the stage has an inclined structure, tilting downwards from the inner wall of the first channel 121 to the inner wall of the second channel 122, forming an inclined groove. In this way, the optical lens rests precisely on the top of the inclined groove, and the bottom surface of the optical lens does not contact any surface inside the placement groove 12, thus providing better protection for the lens.
[0033] like Figure 4As shown, in this embodiment, the cleaning device 2 includes a closed cylindrical cleaning tank 21 and a transport mechanism disposed inside the cleaning tank 21. The cleaning tank 21 has an inlet and an outlet on its side. The transport mechanism includes a rotating frame coaxially mounted on the top of the cleaning tank 21 and a loading assembly 6 mounted on the bottom of the rotating frame. A fixed shaft 22 is coaxially connected to the middle of the rotating frame. The loading assembly 6 is fixedly mounted on the bottom of the outer edge of the rotating frame and can move vertically. A push rod ejector is correspondingly provided at the outlet. An ultrasonic cleaning assembly 5 is also provided at the bottom of the cleaning tank 21. In this embodiment, an annular ultrasonic cleaning assembly 5 is provided, which, referring to existing technology, includes an ultrasonic generator and a transducer, thereby uniformly emitting high-frequency oscillations in all directions. To increase the moving distance of the optical lens inside the cleaning tank 21 and improve the utilization rate of the internal space of the cleaning tank 21, the inlet and outlet are spaced 90° apart in this embodiment, giving the loading assembly 6 a 270° movement angle.
[0034] It should be noted that the push rod feeder 4 in this embodiment includes a first telescopic rod 41 and a push plate 42 that are perpendicular to each other. The first telescopic rod 41 is horizontally arranged at the same height as the placement groove 12 on the upper surface of the feeding conveyor belt 11. The extension direction of the first telescopic rod 41 is parallel to the extension direction of the placement groove 12. The push plate 42 is a vertically arranged plate structure, and when the push plate 42 moves horizontally, it can pass through the placement groove 12 close to the bottom. The structure of the push rod discharger is the same as that of the push rod feeder 4, but the push rod discharger is horizontally arranged inside the discharge port of the cleaning tank 21. The loading component 6 passes between the push rod discharger and the discharge port. When the push plate 42 of the push rod discharger moves horizontally, it passes through the loading component 6. The end of the feeding conveyor belt 11 corresponds to the position of the feeding port. The pusher feeder 4 can push the optical lens that has moved to the end of the feeding conveyor belt 11 horizontally into the feeding port and lock it on the carrying component 6. When the carrying component 6 moves to the discharge port, the pusher discharger pushes the optical lens horizontally out of the carrying component 6 and makes it fall onto the discharge conveyor belt.
[0035] In the specific design, the rotating frame includes a vertically arranged connecting rod 23 and a support rod 24 radially wound around the outside of the connecting rod 23. The connecting rod 23 is coaxially and fixedly connected to the fixed shaft 22. The length of the support rod 24 is matched with the radius of the cleaning tank 21, so that the carrying assembly 6 is close to the side wall of the cleaning tank 21. In this embodiment, the fixed shaft 22 is vertically arranged in the middle of the cleaning tank 21, and the bottom end of the fixed shaft 22 extends through the outside of the cleaning tank 21 and is connected to a drive motor. The connecting rod 23 is coaxially arranged at the top of the fixed shaft 22, located at the top of the cleaning tank 21.
[0036] like Figure 5As shown, the loading assembly 6 includes a second telescopic rod 61, a connecting bracket 62, and a glass frame 63. The second telescopic rod 61 is vertically fixed to the bottom of the outer end of a straight rod. The connecting bracket 62 is a vertically oriented frame structure, with its top center connected to the bottom end of the second telescopic rod 61, and its bottom open. The glass frame 63 is a square frame structure, with the middle portions of two opposite sides of the glass frame 63 rotatably connected to the bottom sides of the connecting bracket 62, allowing the glass frame 63 to rotate freely vertically within the connecting bracket 62. At least one side of the glass frame 63 not connected to the connecting bracket 62 is rotatably connected to an adjacent side, allowing that side to be opened or closed through rotation. The glass frame 63 and the connecting bracket 62 are connected by two rotating shafts, one of which is externally mounted with a miniature rotary motor 621, driving the vertical rotation adjustment of the glass frame 63.
[0037] like Figure 6 As shown, preferably, the glass frame 63 in this embodiment includes three mutually perpendicular sides, two of which are fixed sides 631, and the other perpendicular side is a movable side 632. The middle of the fixed side 631 is rotatably connected to the bottom end of the connecting bracket 62, and the movable side 632 is rotatably connected to any one of the fixed sides 631, thereby closing or opening the side. The movable side 632 is rotatably connected to one of the fixed sides 631 via a hinge, and a miniature opening / closing motor 634 is provided at the hinge's connecting shaft, thereby driving the rotation of the movable side 632 to open or close the side. When the movable side 632 is in the open state, the glass frame 63 forms a through-channel structure at both ends, allowing optical lenses to pass freely.
[0038] Further preferably, both the fixed edge 631 and the movable edge 632 have a plurality of slots 633 on their inner surfaces. The length of each slot 633 is much smaller than the length of either the fixed edge 631 or the movable edge 632. Each slot 633 is a triangular groove structure with a width decreasing from the outside in. The optical lens can be precisely secured within the slots 633. When the movable edge 632 is closed, the optical lens is secured in three directions. During cleaning, when the movable edge 632 is at the bottom, the optical lens is stably secured inside the glass frame 63 under gravity, preventing it from falling off during cleaning or movement. Furthermore, only the innermost linear area of the triangular slot 63 contacts the edge of the optical lens, resulting in a very small contact area and preventing friction between the surface of the optical lens and the surface of the slot 633, further protecting the lens itself.
[0039] The workflow of this invention is as follows:
[0040] The operator places the optical lens on the placement slot 12 on the surface of the feed conveyor belt 11. The optical lens then moves to the end, and the first telescopic rod 41 of the pusher feeder 4 operates, pushing the optical lens through the feed inlet into the cleaning tank 21 via the push plate 42. At this time, a carrying component 6 inside the cleaning tank 21 rotates to the feed inlet position, and the glass frame 63 is in a horizontal state with the movable edge 632 closed. The optical lens then slides into the slot 633 and is fixed. The glass frame 63 then rotates to a vertical position, so that the movable edge 632 is at the bottom for support. The second telescopic rod 61 drives the glass frame 63 to move downwards as a whole, completely immersing it in the liquid below. It then moves along with the rotation of the rotating frame while being cleaned by high-frequency vibration. When the glass frame 63 moves to the position below the discharge port, the second telescopic rod 61 retracts to raise the glass frame 63 to the corresponding height. The glass frame 63 rotates to the horizontal position again, and at the same time, the movable side 632 rotates open. The push rod discharge device works, and the push plate 42 pushes out the optical lens and passes through the discharge port. Finally, the optical lens moves to the placement groove 12 on the surface of the discharge conveyor belt. After being dried by the dryer, it moves to the end and is taken out.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. An optical lens cleaning device, characterized in that, Including those connected sequentially: The feeding device includes a horizontally arranged feeding conveyor belt, the surface of which is provided with adjacent placement grooves, the placement grooves having a groove structure, both ends of which penetrate through the side of the feeding conveyor belt and connect to the outside, the extension direction of the placement grooves being perpendicular to the transport direction of the feeding conveyor belt, and a push rod feeder being provided at the end of the feeding conveyor belt. A cleaning device includes a closed cylindrical cleaning tank and a transport mechanism installed inside the cleaning tank. The cleaning tank has an inlet and an outlet on its side. The transport mechanism includes a rotating frame coaxially mounted on the top of the cleaning tank and a loading component installed at the bottom of the rotating frame. A fixed shaft is coaxially connected to the middle of the rotating frame. The loading component is fixedly installed at the bottom of the outer edge of the rotating frame and can move vertically. A push rod ejector is provided at the outlet. An ultrasonic cleaning component is also provided at the bottom of the cleaning tank. The discharge device includes a horizontally arranged discharge conveyor belt, the surface of which is provided with a placement groove that is the same as the surface of the infeed conveyor belt. The push rod feeder includes a first telescopic rod and a push plate that are perpendicular to each other. The first telescopic rod is horizontally positioned at the same height as the placement groove on the upper surface of the feeding conveyor belt. The extension direction of the first telescopic rod is parallel to the extension direction of the placement groove. The push plate is a vertically arranged plate structure, and when the push plate moves horizontally, it can pass through the placement groove close to the bottom. The push rod discharger has the same structure as the push rod feeder, but the push rod discharger is horizontally positioned inside the discharge port of the cleaning tank. The loading assembly passes between the push rod discharger and the discharge port, and the push plate of the push rod discharger passes through the loading assembly when it moves horizontally. The loading assembly includes a second telescopic rod, a connecting bracket, and a glass frame. The second telescopic rod is vertically fixed to the bottom of the rotating frame. The connecting bracket is a vertically oriented frame structure. The top center of the connecting bracket is connected to the bottom of the second telescopic rod, and the bottom of the connecting bracket is open. The glass frame is a square frame structure. The middle parts of two opposite sides of the glass frame are rotatably connected to the bottom of the two sides of the connecting bracket, so that the glass frame can rotate freely in the vertical direction inside the connecting bracket. Among the two sides of the glass frame that are not connected to the connecting bracket, at least one side is rotatably connected to the adjacent side, and the opening or closing of that side is achieved by rotation.
2. The optical lens cleaning equipment as described in claim 1, characterized in that: Both the feeding conveyor belt and the discharging conveyor belt are covered with enclosed covers. The cover of the feeding conveyor belt has an opening on the side at the corresponding starting end, and the cover of the discharging conveyor belt has an opening on the side at the corresponding ending end.
3. The optical lens cleaning equipment as described in claim 1, characterized in that: The placement trough includes a first trough and a second trough. The first trough is located above the second trough. The top of the first trough is connected to the space above the feeding conveyor belt or the discharging conveyor belt, and the bottom is connected to the second trough. The bottom of the second trough is located inside the feeding conveyor belt or the discharging conveyor belt. The width of the second trough is smaller than that of the first trough, so that the connection between the first trough and the second trough forms a symmetrical platform on both sides.
4. The optical lens cleaning equipment as described in claim 3, characterized in that: The stage is an inclined structure, tilting downwards from the inner wall of the first channel to the inner wall of the first channel, forming an inclined channel located between the first channel and the second channel.
5. The optical lens cleaning equipment as described in claim 1, characterized in that: The rotating frame includes a vertically arranged connecting rod and a support rod radially wound around the outside of the connecting rod. The connecting rod is coaxially and fixedly connected to the fixed shaft. The length of the support rod is matched with the radius of the cleaning tank, so that the loading assembly is close to the side wall of the cleaning tank.
6. The optical lens cleaning equipment as described in claim 1, characterized in that: The glass frame includes three mutually perpendicular sides, two of which are fixed sides and the other perpendicular side is a movable side. The middle of the fixed side is rotatably connected to the bottom of the connecting bracket, and the movable side is rotatably connected to any one of the fixed sides, thereby closing or opening the side.
7. The optical lens cleaning equipment as described in claim 6, characterized in that: The inner surfaces of both the fixed and movable sides are provided with several slots. The length of the slots is much smaller than the length of the fixed or movable side. The slots are triangular groove structures with their width decreasing from the outside to the inside.
8. The optical lens cleaning equipment as described in claim 2, characterized in that: A dryer is also installed inside the outer casing of the discharge conveyor belt.
Citation Information
Patent Citations
Automatic cleaning equipment for optical lens
CN212041661U