Optical lens thickness laser detection device and method thereof

Abstract

The invention relates to the technical field of optical lens thickness laser detection, in particular to an optical lens thickness laser detection device and a method thereof.The optical lens thickness laser detection device comprises an equipment outer shell and a laser detection assembly, the laser detection assembly is installed in the equipment outer shell, and a lens track frame is installed in the equipment outer shell; the front face and the back face of the lens track frame are of a groove-shaped structure communicating with the interior, the upper end of the lens track frame extends out of the equipment outer shell, sponge cleaning assemblies are arranged on the inner side of the equipment outer shell and located on the front side and the rear side of the lens track frame, and a material control assembly is installed on the portion, located on the lower sides of the sponge cleaning assemblies, of the lens track frame. The waste water tank is located below the lens track frame and the sponge cleaning assembly. Before the lens moves to a measurement area, the sponge cleaning assembly is controlled by the twisting control assembly to extend into the inner side of the lens track frame, the to-be-detected lens on the inner side is contacted and wiped, and the cleanliness of the lens during detection is guaranteed.

Description

Technical Field

[0001] This invention relates to the technical field of laser thickness detection of optical lenses, and in particular to a laser thickness detection device and method for optical lenses. Background Technology

[0002] With the development of society and economy and the improvement of industrialization, people are using optical lenses more and more. Optical lens testing technology has become a hot topic of social research. Optical lenses are transparent materials with one or more curved surfaces, made of optical materials such as glass or resin. After polishing, they are often used in conjunction with frames to correct the user's vision, obtain a clear field of vision, or for purposes such as blue light protection and zoom. To ensure the accuracy of optical lenses, their thickness needs to be tested at the factory.

[0003] Chinese patent CN117537727A discloses a multi-thickness detection device for optical lenses, comprising: a frame; a conveyor belt disposed on the frame; the conveyor belts being arranged side by side on the frame; a detection table fixedly connected to the frame; optical lenses being transported to the detection table via the conveyor belt; and upper and lower limit detection devices disposed on the detection table. This invention arranges optical lenses in a row and places a laser beam above the row of optical lenses. The distance between the laser beam and the optical lenses is the standard tolerance value of the optical lenses. Therefore, when the optical lens being tested blocks the laser beam, it indicates that the thickness of the optical lens being tested exceeds the upper limit of the tolerance. At the same time, a support block pushes the optical glass upward to move the tolerance distance to detect whether the thickness of the optical lens is lower than the lower limit of the tolerance value. Therefore, this invention can detect the thickness of multiple optical glasses simultaneously.

[0004] In the aforementioned and existing technologies, lens inspection is generally conducted in an open environment. During storage and transfer, dust inevitably adheres to the surface of the lens. During laser inspection, the dust adhering to the lens surface will change the refraction trajectory of the laser, affecting the accuracy of the measurement. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides an optical lens thickness laser detection device and method thereof.

[0006] The present invention provides an optical lens thickness laser detection device, which adopts the following technical solution: it includes a device housing and a laser detection component. The laser detection component is installed inside the device housing. A lens trajectory frame is installed inside the device housing. The front and back of the lens trajectory frame have a groove-shaped structure that communicates with the interior. The upper end of the lens trajectory frame extends out of the device housing. Sponge cleaning components are provided inside the device housing and on both the front and back sides of the lens trajectory frame. A material control component is installed below the sponge cleaning components on the lens trajectory frame.

[0007] The device housing contains a wastewater tank located below the lens track frame and the sponge cleaning component. A three-way water supply pipe is installed inside the device housing, penetrating the inner wall of the housing. A water control component capable of relative rotation is connected to one end of the sponge cleaning component away from the lens track frame. The other end of the water control component is connected to the three-way water supply pipe, allowing the water control component to slide relative to the three-way water supply pipe.

[0008] The outer casing of the equipment is equipped with a dual-output power mechanism, which controls the movement of the material control component. The dual-output power mechanism controls the sponge cleaning component to swing half a revolution while moving in the lateral direction of the vertical lens trajectory frame through the torsion control component. The wastewater tank is equipped with two pressure-bearing components, and the two sponge cleaning components are located between the two pressure-bearing components.

[0009] Optionally, the upper end of the lens trajectory frame is vertically arranged, the lower end of the lens trajectory frame is horizontally arranged, the lens trajectory frame is inclined, and the sponge cleaning component and the material control component are both located in the inclined part of the lens trajectory frame.

[0010] Optionally, the material control assembly includes two parallel stop bars and a movable frame. The movable frame is slidably connected to the lens trajectory frame and can move in a direction perpendicular to the side of the lens trajectory frame. The moving direction of the movable frame is parallel to the stop bars.

[0011] Movable slots are installed on both the front and back sides of the lens track frame and on the lower side of the groove structure. Each stop bar can slide inside the two movable slots. The two stop bars are located on the front and back sides of the lens track frame, respectively. The ends of the two stop bars that are far apart from each other are detachably installed to the movable frame by nuts.

[0012] The dual-output power mechanism provides power for the movement of the movable frame.

[0013] Optionally, the sponge cleaning assembly includes a curved tube, an end plate, and a sponge cleaning disc. The sponge cleaning disc is located between the lens track frame and the end plate. The sponge cleaning disc is installed on the end face of the end plate. The other end of the end plate is coaxially installed on one end of the curved tube. The end plate can rotate and slide relative to the curved tube. The end plate and the curved tube are elastically connected by a spring. The interior of the end plate is connected to the interior of the curved tube. A hole for water to flow out is opened on the side of the end plate near the sponge cleaning disc.

[0014] Optionally, a spiral groove is formed on the circumferential surface of the end plate away from the sponge cleaning plate, and a sliding upright is inserted into the spiral groove. The upright is fixed to the outer surface of the bent tube, and the end of the bent tube away from the end plate is set perpendicular to the axis of the end plate.

[0015] Optionally, the torsion control assembly includes an active frame, a gear, and a toothed plate. The active frame is rotatably sleeved on the end of the bend tube away from the end plate, and the gear is fixedly sleeved on the end of the bend tube away from the end plate. A square frame is provided on the upper side of the active frame, and the toothed plate meshes with the lower side of the gear. The bottom surface of the toothed plate is fixed to the inner ring surface of the square frame.

[0016] The side of the frame is slidably pierced by a support rib parallel to the axis of the end plate. The support rib is fixedly installed inside the outer shell of the equipment, and the toothed plate is parallel to the support rib.

[0017] The lower side of the supporting rib is provided with a damping tooth groove, and a toothed damping block is engaged on the lower side of the damping tooth groove. The toothed damping block is connected to the frame through a vertically set elastic telescopic rod.

[0018] The gear and the bent tube are located on the inner ring side of the frame.

[0019] The dual-output power mechanism controls the active frame to move along the axis of the supporting rib, and the active frames on both sides of the lens trajectory frame move in opposite directions.

[0020] Optionally, the water control assembly includes a water pipe, a raw water pan, and a misaligned water pan. The active frame is fixed to the water pipe. The end of the bend away from the end plate is coaxially installed with the misaligned water pan. The inside of the bend is connected to the inside of the misaligned water pan. The raw water pan is coaxially rotatably sleeved on the outer surface of the misaligned water pan. The misaligned water pan and the raw water pan are both provided with round holes on their sides that are close to each other. The raw water pan is connected to the water pipe. The other end of the water pipe is slidably sleeved on one end of the three-way water supply pipe.

[0021] The water pipe is equipped with a vertically arranged side box, the inside of which is connected to the inside of the water pipe. The side box is arranged parallel to the supporting rib, and baffles are provided on both sides of the side box. The lower end of the baffles is fixed to the bottom wall of the equipment shell.

[0022] The inner side of the side box is provided with a strip block. The side of the strip block near the raw water pan has a through-slot. The two ends of the strip block are coaxially installed with a bar rod. The bar rod slides through the inner wall of the side box and is arranged parallel to the support rib rod.

[0023] Optionally, the pressure-bearing component includes a water tank and a permeable plate. The permeable plate is vertically installed inside the water tank, and a gap is formed between the side of the permeable plate away from the lens track frame and the inner wall of the water tank. The range of motion of the two sponge cleaning discs is located in the space between the two permeable plates. The water tank is installed inside the wastewater tank.

[0024] Optionally, a stabilizing block is installed at the end of the bend away from the end plate, and a bracket is provided on both sides of the stabilizing block. The lower end of the bracket is fixed to the wastewater tank, and the upper end of the bracket near the stabilizing block is provided with a matching rectangular opening.

[0025] The method of using the laser thickness detection device for optical lenses includes the following steps: S1. Place the lens to be tested into the inside from the top of the lens trajectory frame, and the lens slides downward under gravity.

[0026] S2. The dual-output power mechanism controls the lens to stop between the two sponge cleaning components through the material control component.

[0027] S3. The dual-output power mechanism controls the sponge cleaning component to pass through the groove on the side of the lens track frame and contact the inner lens to wipe the dust on the lens surface through the torsion control component.

[0028] S4. After the dual-output power mechanism drives the sponge cleaning component away from the lens trajectory frame, it rotates towards the pressure component. The three-way water supply pipe flushes water into the sponge cleaning component through the water control component, washing away the dust attached to the surface of the sponge cleaning component.

[0029] S5. After the sponge cleaning component moves, it applies pressure to the pressure-bearing component. The sponge component of the sponge cleaning component is compressed by the force, squeezing out the excess water inside the sponge and keeping the sponge in a moist state. When the sponge cleaning component moves to the inside of the lens track frame again, the sponge cleaning component is in a clean state.

[0030] In summary, the present invention has the following beneficial technical effects: This invention, through the combination of components such as a sponge cleaning assembly, a three-way water supply pipe, and a twist control assembly, allows the sponge cleaning assembly to extend into the inside of the lens trajectory frame before the lens moves to the measurement area, thereby contacting and wiping the lens to be tested on the inside and ensuring the cleanliness of the lens during testing.

[0031] This invention, through the coordination of components such as a three-way water supply pipe and a water control component, controls the sponge cleaning component to rotate half a turn away from the lens and face the pressure component. Then, the water control component controls the three-way water supply pipe to supply water into the sponge cleaning component. The water flow forms an outward impact flow on the sponge cleaning component from the inside. The dust attached to the sponge part of the sponge cleaning component is removed under the impact, so as not to contaminate the lens for the next inspection.

[0032] This invention, by setting up a permeable plate and a water tank, allows the sponge cleaning disc, after being impacted by the water flow, to apply pressure to the permeable plate under the push of the active frame, squeezing out the water from the sponge cleaning disc. This keeps the sponge cleaning disc moist but not containing excessive water, preventing water droplets from remaining on the lens surface during lens wiping and affecting the accuracy of subsequent laser measurements. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the device housing in an embodiment of the present invention; Figure 3 This is a schematic diagram of the lower axial structure of a portion of the structure in an embodiment of the present invention; Figure 4 This is a side view schematic diagram of some structures in an embodiment of the present invention; Figure 5 This is a schematic diagram of the material control component in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the torsion control component in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure connecting the supporting rib and the square frame in an embodiment of the present invention; Figure 8 This is a schematic diagram of the connection between the misaligned water pan and the original water pan in an embodiment of the present invention.

[0034] Reference numerals: 1. Equipment housing; 2. Laser detection assembly; 3. Pressure-bearing assembly; 31. Water tank; 32. Permeable plate; 4. Sponge cleaning assembly; 41. Bend; 42. End plate; 43. Sponge cleaning tray; 44. Spiral groove; 45. Upright pole; 46. Stabilizing block; 47. Clip; 5. Material control assembly; 51. Stop bar; 52. Movable frame; 53. Movable groove; 6. Wastewater tank; 7. T-joint water supply pipe; 8. Water control components; 81. Water pipe; 82. Raw water tray; 83. Offset water tray; 84. Round hole; 85. Side box; 86. Strip block; 87. Strip rod; 88. Long groove; 89. Baffle; 9. Torsion control components; 91. Active frame; 92. Gear; 93. Tooth plate; 94. Square frame; 95. Support rib; 96. Damping tooth groove; 97. Tooth damping block; 10. Lens trajectory frame; 11. Dual output power mechanism. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-8 The present invention will be described in further detail below.

[0036] This invention discloses a laser detection device for optical lens thickness. For example... Figures 1-8As shown, the device includes a housing 1 and a laser detection component 2. The housing 1 can be disassembled by bolts, and the upper surface of the housing 1 is provided with a flip-open top cover for easy inspection and maintenance of the internal structure. The laser detection component 2 is installed inside the housing 1. A lens track frame 10 is installed inside the housing 1. The front and back of the lens track frame 10 are groove-shaped structures that communicate with the interior. The upper end of the lens track frame 10 extends out of the housing 1. The upper end of the lens track frame 10 is vertically set, the lower end of the lens track frame 10 is horizontally set, and the lens track frame 10 is inclined. The sponge cleaning component 4 and the material control component 5 are both located on the inclined part of the lens track frame 10. After the lens is placed from the upper end of the lens track frame 10, the lens rolls down along the inner side of the lens track frame 10 under gravity. The lens can pass through the laser detection component 2 while rolling through the lens track frame 10. The laser detection component 2 detects the lens that passes through, and then the detected lens rolls out from the other end of the lens track frame 10.

[0037] Sponge cleaning components 4 are provided on the inner side of the equipment housing 1 and on both the front and rear sides of the lens track frame 10. A material control component 5 is installed on the lower side of the lens track frame 10 below the sponge cleaning components 4.

[0038] The material control assembly 5 includes two parallel stop bars 51 and a movable frame 52. The movable frame 52 is slidably connected to the lens track frame 10. The movable frame 52 can move in a direction perpendicular to the side of the lens track frame 10. The moving direction of the movable frame 52 is parallel to the stop bars 51.

[0039] Movable slots 53 are installed on both the front and back of the lens track frame 10 and on the lower side of the groove structure. Each stop bar 51 can slide inside the two movable slots 53. The two stop bars 51 are located on the front and back sides of the lens track frame 10 respectively. The two stop bars 51 are detachably installed to the movable frame 52 by nuts at one end away from each other. The distance between the two stop bars 51 is adapted to the size of the lens.

[0040] The two stop levers 51 overlap at one end. As the two stop levers 51 move with the movable frame 52, the upper stop lever 51 blocks the upper lens, allowing the two sponge cleaning components 4 to wipe the lens blocked by the upper stop lever 51. Then, as the movable frame 52 drives the upper stop lever 51 to gradually disengage from the lens track frame 10, the lower stop lever 51 gradually inserts into the inside of the lens track frame 10. After the upper stop lever 51 is completely disengaged from the upper lens, the lens falls downwards onto the upper side of the lower stop lever 51. When the upper stop bar 51 is reinserted into the lens track frame 10, the upper stop bar 51 is inserted between the two circular gaps formed by the adjacent lens and the second lens located above the lower stop bar 51. Thus, the upper stop bar 51 wipes the new lens support. After the lower stop bar 51 is disengaged from the lens track frame 10, the wiped lens between the two stop bars 51 falls downward. Thus, the movable frame 52 drives the two stop bars 51 to reciprocate in the lens track frame 10, causing the upper lens to fall downward one by one in sequence.

[0041] A wastewater tank 6 is installed inside the outer casing 1 of the equipment. The wastewater tank 6 is located below the lens track frame 10 and the sponge cleaning component 4. The wastewater tank 6 penetrates the outside of the outer casing 1 and can drain the water inside the wastewater tank 6. A three-way water supply pipe 7 is installed inside the outer casing 1. The three-way water supply pipe 7 penetrates the inner wall of the outer casing 1. One end of the three-way water supply pipe 7 is connected to the water supply equipment outside the outer casing 1. A water control component 8 that can rotate relative to the lens track frame 10 is connected to the end of the sponge cleaning component 4. The other end of the water control component 8 is connected to the three-way water supply pipe 7. The water control component 8 can slide relative to the three-way water supply pipe 7 and can control whether the three-way water supply pipe 7 supplies water to the sponge cleaning component 4.

[0042] The sponge cleaning assembly 4 includes a curved tube 41, an end plate 42, and a sponge cleaning disc 43. The curved tube 41 is bent at a right angle. The sponge cleaning disc 43 is located between the lens track frame 10 and the end plate 42. The sponge cleaning disc 43 is installed on the end face of the end plate 42. The other end of the end plate 42 is coaxially installed on one end of the curved tube 41. The end plate 42 can rotate and slide relative to the curved tube 41. The end plate 42 and the curved tube 41 are elastically connected by a spring, which has the tendency to push the end plate 42 away from the curved tube 41. The interior of the end plate 42 is connected to the interior of the curved tube 41. The side of the end plate 42 near the sponge cleaning disc 43 has a hole for water to flow out. After water is filled into the curved tube 41, the water flows through the hole on the end face of the end plate 42 to form an impact water flow from the inside to the outside of the connected sponge cleaning disc 43. The flowing water carries away the dust attached to the outside of the sponge cleaning disc 43, preventing contamination of the next lens that needs to be wiped.

[0043] A spiral groove 44 is formed on the circumferential surface of the end plate 42 away from the sponge cleaning disc 43. A sliding upright rod 45 is inserted into the spiral groove 44. The upright rod 45 is fixed to the outer surface of the curved tube 41. The end of the curved tube 41 away from the end plate 42 is set perpendicular to the axis of the end plate 42. After the sponge cleaning disc 43 is blocked and retracted by the lens, it drives the end plate 42 to slide on the surface of the curved tube 41. The upright rod 45 slides in the spiral groove 44, pushing the end plate 42 and the sponge cleaning disc 43 to rotate relative to the curved tube 41. The spiral direction of the spiral groove 44 on both sides of the lens trajectory frame 10 is satisfied, causing the two sponge cleaning discs 43 to rotate in opposite directions. The twisting of the sponge cleaning discs 43 improves the wiping effect on the lens surface.

[0044] The outer casing 1 of the equipment is equipped with a dual-output power mechanism 11, which controls the movement of the material control assembly 5.

[0045] The dual-output power mechanism 11 provides power for the movement of the movable frame 52. The movable frame 52 is threaded with a one-way threaded rod. The dual-output power mechanism 11 outputs rotational power to the one-way threaded rod. The movable frame 52 drives the two stop rods 51 to reciprocate between the lenses in the lens trajectory frame 10 by engaging with the rotating one-way threaded rod.

[0046] The dual-output power mechanism 11 controls the sponge cleaning component 4 to swing half a revolution while moving the vertical lens trajectory frame 10 in the lateral direction through the torsion control component 9.

[0047] The torsion control assembly 9 includes an active frame 91, a gear 92, and a toothed plate 93. The active frame 91 is rotatably sleeved on the end of the bent tube 41 away from the end plate 42. The gear 92 is fixedly sleeved on the end of the bent tube 41 away from the end plate 42. A square frame 94 is provided on the upper side of the active frame 91. The toothed plate 93 meshes with the lower side of the gear 92. The bottom surface of the toothed plate 93 is fixed to the inner ring surface of the square frame 94. The gear 92 and the bent tube 41 are located on the inner ring side of the square frame 94. When the gear 92 moves a distance within the square frame 94 and meshes with the toothed plate 93, it can drive the gear 92 to rotate half a revolution.

[0048] A support rib 95 parallel to the axis of the end plate 42 slides through the side of the frame 94. The support rib 95 is fixedly installed inside the outer shell 1 of the equipment. The toothed plate 93 is parallel to the support rib 95. A damping tooth groove 96 is opened on the lower side of the support rib 95. A toothed damping block 97 is engaged on the lower side of the damping tooth groove 96. The toothed damping block 97 is connected to the frame 94 through a vertically arranged elastic telescopic rod. The elastic telescopic rod has the tendency to push the toothed damping block 97 to engage with the damping tooth groove 96, and the teeth of the toothed damping block 97 are isosceles triangles.

[0049] The dual-output power mechanism 11 is equipped with a double-threaded rod with opposite thread directions at both ends. Two active frames 91 are respectively engaged with the two ends of the double-threaded rod. The dual-output power mechanism 11 controls the active frames 91 to move along the axis of the support rib 95. The active frames 91 on both sides of the lens trajectory frame 10 move in opposite directions.

[0050] A stabilizing block 46 is installed at the end of the bend 41 away from the end plate 42. A bracket 47 is provided on both sides of the stabilizing block 46. The lower end of the bracket 47 is fixed to the wastewater tank 6, and the upper end of the bracket 47 near the stabilizing block 46 is provided with a matching rectangular opening.

[0051] After the sponge cleaning disc 43 cleans the lens, the active frame 91 is moved away from the lens trajectory frame 10. Since the stabilizing block 46 is located inside the upper end of the holder 47, the curved tube 41 cannot rotate. The active frame 91 first drives the square frame 94 and the sponge cleaning disc 43 to move horizontally through the curved tube 41. After the sponge cleaning disc 43 is separated from the lens trajectory frame 10, the stabilizing block 46 is separated from the upper end of the holder 47. As the active frame 91 drives the gear 92 to move through the curved tube 41, the square frame 94 moves with a delay due to the meshing resistance of the tooth damping block 97 and the damping tooth groove 96. First, it pushes the gear 92 to mesh with the tooth plate 93, and drives the sponge cleaning disc 43 to rotate to the other side of the curved tube 41 through the curved tube 41. Then, when it continues to move, the stabilizing block 46 is inserted into the upper end of the holder 47 on the other side.

[0052] The water control assembly 8 includes a water pipe 81, a raw water tray 82, and a misaligned water tray 83. The active frame 91 is fixed to the water pipe 81. The end of the bend 41 away from the end plate 42 is coaxially installed with the misaligned water tray 83. The inside of the bend 41 is connected to the inside of the misaligned water tray 83. The raw water tray 82 is coaxially rotatably sleeved on the outer surface of the misaligned water tray 83. The misaligned water tray 83 and the raw water tray 82 are both provided with round holes 84 on their sides that are close to each other. The raw water tray 82 is connected to the water pipe 81. The other end of the water pipe 81 is slidably sleeved on one end of the three-way water supply pipe 7. When the sponge cleaning tray 43 rotates to the side facing the lens track frame 10, the two round holes 84 on the surface of the raw water tray 82 and the misaligned water tray 83 are in a misaligned state. After the sponge cleaning tray 43 rotates to the other side of the gear 92, the two round holes 84 on the surface of the raw water tray 82 and the misaligned water tray 83 are connected.

[0053] A side box 85 is installed vertically on the water pipe 81. The inside of the side box 85 is connected to the inside of the water pipe 81. The side box 85 is set parallel to the support rod 95. A baffle 89 is set on both sides of the side box 85. The lower end of the baffle 89 is fixed to the bottom wall of the inner wall of the equipment shell 1.

[0054] A strip 86 is provided inside the side box 85. A through groove 88 is opened on the side of the strip 86 near the original water tray 82. A bar 87 is coaxially installed at both ends of the strip 86. The bar 87 slides through the inner wall of the side box 85. The bar 87 is set parallel to the support rib 95. When the side box 85 moves away from the lens trajectory frame 10 along with the water pipe 81, after the sponge cleaning tray 43 rotates to the side away from the lens of the gear 92, the bar 87 on the side of the side box 85 away from the lens trajectory frame 10 is blocked by the corresponding side baffle 89 during its movement. Under the obstruction, the bar 87 pushes the strip 86 to move relative to the side box 85. During the movement, the long groove 88 on the surface of the strip 86 first connects with the water pipes 81 on both sides of the side box 85, and then is misaligned, so that the three-way water supply pipe 7 supplies water to the bend pipe 41 through the water pipe 81, the long groove 88 and the two round holes 84 for a period of time, so that the water flow can impact the sponge cleaning tray 43.

[0055] Wastewater tank 6 is equipped with two pressure-bearing components 3, and two sponge cleaning components 4 are located between the two pressure-bearing components 3.

[0056] The pressure-bearing component 3 includes a water tank 31 and a permeable plate 32. The permeable plate 32 is vertically installed inside the water tank 31. A gap is formed between the side of the permeable plate 32 away from the lens track frame 10 and the inner wall of the water tank 31. The movement range of the two sponge cleaning discs 43 is located in the space between the two permeable plates 32. The water tank 31 is installed inside the wastewater tank 6. After the long trough 88 is connected to the water pipe 81 and then misaligned, the water flow impacts the sponge cleaning discs 43. As the sponge cleaning discs 43 continue to move, they come into contact with the permeable plates 32. The continuing to move sponge cleaning discs 43 are blocked and compressed by the permeable plates 32. Excess water is squeezed out, and the squeezed water flows into the wastewater tank 6 through the water tank 31. After the sponge cleaning disc 43 moves away from the water permeable plate 32, the sponge cleaning disc 43 extends. The sponge cleaning disc 43 is wet but does not contain too much water, so that water droplets remain on the surface of the lens when wiping the lens, which may affect the accuracy of subsequent laser measurement. When the sponge cleaning disc 43 contacts the water permeable plate 32, the stabilizing block 46 enters the inner side of the upper end of the corresponding bracket 47, ensuring that the bend 41 will not rotate before the sponge cleaning disc 43 separates from the water permeable plate 32.

[0057] The method of using the laser thickness detection device for optical lenses includes the following steps: S1. Place the lens to be tested into the inside from the top of the lens trajectory frame 10, and the lens slides downward under gravity.

[0058] S2. The dual-output power mechanism 11 controls the lens to stop between the two sponge cleaning components 4 through the material control component 5.

[0059] S3. The dual-output power mechanism 11 controls the sponge cleaning component 4 to pass through the groove on the side of the lens track frame 10 and contact the inner lens to wipe the dust on the lens surface.

[0060] S4. The dual-output power mechanism 11 drives the sponge cleaning component 4 away from the lens track frame 10 and rotates towards the pressure component 3. The three-way water supply pipe 7 flushes water into the sponge cleaning component 4 through the water control component 8, washing off the dust attached to the surface of the sponge cleaning component 4.

[0061] S5. After the sponge cleaning component 4 moves, it applies pressure to the pressure-bearing component 3. The sponge component of the sponge cleaning component 4 is compressed by the force, squeezing out the excess water inside the sponge and keeping the sponge moist. When the sponge cleaning component 4 moves to the inside of the lens track frame 10 again, the sponge cleaning component 4 is in a clean state.

[0062] The working principle is as follows: The lens to be tested is placed inside the lens track frame 10 from the top. The lens slides downward under gravity. The dual-output power mechanism 11 controls the lens to stop between the two sponge cleaning components 4 through the material control component 5. At the same time, the material control component 5 controls the lens to stop intermittently between the sponge cleaning components 4 one by one. The two sponge cleaning components 4 wipe the lens in turn as they move closer and closer. The dual-output power mechanism 11 controls the sponge cleaning component 4 to pass through the groove on the side of the lens track frame 10 and contact the inner side of the lens to wipe the dust on the lens surface. After wiping, the dual-output power mechanism 11 drives the sponge cleaning component 4 away from the lens track frame 10 and moves it away from the lens track frame 10. After frame 10 is detached, the sponge part of the sponge cleaning component 4 rotates towards the pressure component 3. The three-way water supply pipe 7 flushes water into the sponge cleaning component 4 through the water control component 8, washing off the dust attached to the surface of the sponge cleaning component 4. As the sponge cleaning component 4 continues to move, it applies pressure to the pressure component 3. The sponge part of the sponge cleaning component 4 is compressed by the force, squeezing out the excess water inside the sponge and keeping the sponge moist. When the sponge cleaning component 4 moves to the inside of the lens trajectory frame 10 again, the sponge cleaning component 4 is in a clean and moist state and wipes the next lens. After being wiped, the lens passes through the laser detection component 2 under gravity and inertia after being detached from the material control component 5, and the thickness of the lens is detected.

[0063] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A laser detection device for optical lens thickness, comprising a housing (1) and a laser detection assembly (2), characterized in that: The laser detection component (2) is installed inside the equipment housing (1). A lens track frame (10) is installed inside the equipment housing (1). The front and back of the lens track frame (10) are groove-shaped structures that communicate with the interior. The upper end of the lens track frame (10) extends out of the equipment housing (1). Sponge cleaning components (4) are provided on the inner side of the equipment housing (1) and on both the front and back sides of the lens track frame (10). A material control component (5) is installed on the lower side of the lens track frame (10) and the sponge cleaning component (4). The wastewater tank (6) is installed inside the outer shell (1) of the equipment. The wastewater tank (6) is located below the lens track frame (10) and the sponge cleaning component (4). A three-way water supply pipe (7) is installed inside the outer shell (1). The three-way water supply pipe (7) passes through the inner wall of the outer shell (1). A water control component (8) that can rotate relative to the sponge cleaning component (4) is connected to one end away from the lens track frame (10). The other end of the water control component (8) is connected to the three-way water supply pipe (7). The water control component (8) can slide relative to the three-way water supply pipe (7). The outer casing (1) of the equipment is equipped with a dual-output power mechanism (11). The dual-output power mechanism (11) controls the movement of the material control component (5). The dual-output power mechanism (11) controls the sponge cleaning component (4) to swing half a circle while moving the vertical lens trajectory frame (10) in the side direction through the torsion control component (9). The wastewater tank (6) is equipped with two pressure components (3). The two sponge cleaning components (4) are located between the two pressure components (3).

2. The laser detection device for optical lens thickness according to claim 1, characterized in that: The upper end of the lens trajectory frame (10) is vertically set, the lower end of the lens trajectory frame (10) is horizontally set, the lens trajectory frame (10) is inclined, and the sponge cleaning component (4) and the material control component (5) are both located in the inclined part of the lens trajectory frame (10).

3. The laser detection device for optical lens thickness according to claim 1 or 2, characterized in that: The material control assembly (5) includes two parallel stop bars (51) and a movable frame (52). The movable frame (52) is slidably connected to the lens track frame (10). The movable frame (52) can move along the direction perpendicular to the side of the lens track frame (10). The moving direction of the movable frame (52) is parallel to the stop bars (51). The lens track frame (10) has movable slots (53) installed on both the front and back sides and on the lower side of the groove structure. Each stop bar (51) can slide inside the two movable slots (53). The two stop bars (51) are located on the front and back sides of the lens track frame (10) respectively. The two stop bars (51) are detachably installed with the movable frame (52) by nuts at one end away from each other. The dual-output power mechanism (11) provides power for the movement of the movable frame (52).

4. The laser detection device for optical lens thickness according to claim 1 or 2, characterized in that: The sponge cleaning assembly (4) includes a bent tube (41), an end plate (42), and a sponge cleaning disc (43). The sponge cleaning disc (43) is located between the lens track frame (10) and the end plate (42). The sponge cleaning disc (43) is installed on the end face of the end plate (42). The other end of the end plate (42) is coaxially installed on one end of the bent tube (41). The end plate (42) can rotate and slide relative to the bent tube (41). The end plate (42) and the bent tube (41) are elastically connected by a spring. The interior of the end plate (42) is connected to the interior of the bent tube (41). The side of the end plate (42) near the sponge cleaning disc (43) has a hole for water to flow out.

5. The laser detection device for optical lens thickness according to claim 4, characterized in that: The end plate (42) away from the sponge cleaning plate (43) has a spiral groove (44) on its circumferential surface. A sliding upright (45) is inserted into the spiral groove (44). The upright (45) is fixed to the outer surface of the bent tube (41). The end of the bent tube (41) away from the end plate (42) is set perpendicular to the axis of the end plate (42).

6. The laser detection device for optical lens thickness according to claim 5, characterized in that: The aforementioned torsion control assembly (9) includes an active frame (91), a gear (92), and a toothed plate (93). The active frame (91) is rotatably sleeved on the end of the bent tube (41) away from the end plate (42). The gear (92) is fixedly sleeved on the end of the bent tube (41) away from the end plate (42). A square frame (94) is provided on the upper side of the active frame (91). The toothed plate (93) meshes with the lower side of the gear (92). The bottom surface of the toothed plate (93) is fixed to the inner ring surface of the square frame (94). The side of the frame (94) has a support rod (95) that is parallel to the axis of the end plate (42). The support rod (95) is fixedly installed inside the outer shell (1) of the equipment. The toothed plate (93) is parallel to the support rod (95). The supporting rib (95) has a damping tooth groove (96) on its lower side, and a toothed damping block (97) meshes with the lower side of the damping tooth groove (96). The toothed damping block (97) is connected to the square frame (94) by a vertically set elastic telescopic rod. The gear (92) and the bend (41) are located on the inner ring side of the frame (94); The dual-output power mechanism (11) controls the active frame (91) to move along the axis of the support rib (95), and the active frames (91) on both sides of the lens trajectory frame (10) move in opposite directions.

7. The laser detection device for optical lens thickness according to claim 6, characterized in that: The water control component (8) includes a water pipe (81), a raw water pan (82), and a misaligned water pan (83). The active frame (91) is fixed to the water pipe (81). The end of the bend (41) away from the end plate (42) is coaxially installed with the misaligned water pan (83). The inside of the bend (41) is connected to the inside of the misaligned water pan (83). The raw water pan (82) is coaxially rotated and sleeved on the outer surface of the misaligned water pan (83). The misaligned water pan (83) and the raw water pan (82) are both provided with round holes (84) on the side close to each other. The raw water pan (82) is connected to the water pipe (81). The other end of the water pipe (81) is slidably sleeved on one end of the three-way water supply pipe (7). The water pipe (81) is equipped with a vertically arranged side box (85), the inside of the side box (85) is connected to the inside of the water pipe (81), the side box (85) is arranged parallel to the supporting rib (95), and a baffle (89) is provided on both sides of the side box (85), the lower end of the baffle (89) is fixed to the bottom wall of the equipment shell (1); The side box (85) is provided with a strip (86) on the inside. The side of the strip (86) near the original water pan (82) has a through groove (88). The two ends of the strip (86) are coaxially mounted with a bar (87). The bar (87) slides through the inner wall of the side box (85). The bar (87) is parallel to the supporting rib (95).

8. The laser detection device for optical lens thickness according to claim 4, characterized in that: The pressure-bearing component (3) includes a water tank (31) and a permeable plate (32). The permeable plate (32) is vertically installed inside the water tank (31). A gap is formed between the side of the permeable plate (32) away from the lens track frame (10) and the inner wall of the water tank (31). The range of motion of the two sponge cleaning discs (43) is located in the space between the two permeable plates (32). The water tank (31) is installed inside the wastewater tank (6).

9. The laser detection device for optical lens thickness according to claim 6, characterized in that: A stabilizing block (46) is installed at the end of the bend (41) away from the end plate (42). A bracket (47) is provided on both sides of the stabilizing block (46). The lower end of the bracket (47) is fixed to the wastewater tank (6). The upper end of the bracket (47) near the stabilizing block (46) is provided with a matching rectangular opening.

10. The method of using the laser detection device for optical lens thickness according to any one of claims 1-9, characterized in that: Includes the following steps: S1. Place the lens to be tested into the inside from the top of the lens trajectory frame (10), and the lens slides down under gravity; S2. The dual-output power mechanism (11) controls the lens to stop between the two sponge cleaning components (4) through the material control component (5); S3. The dual-output power mechanism (11) controls the sponge cleaning component (4) to pass through the groove on the side of the lens track frame (10) and contact the inner lens to wipe the dust on the lens surface through the torsion control component (9). S4. After the dual-output power mechanism (11) drives the sponge cleaning component (4) away from the lens trajectory frame (10), it rotates towards the pressure component (3), and the three-way water supply pipe (7) flushes water into the sponge cleaning component (4) through the water control component (8) to wash off the dust attached to the surface of the sponge cleaning component (4). S5. After the sponge cleaning component (4) moves, it applies pressure to the pressure component (3). The sponge component of the sponge cleaning component (4) is compressed by force, squeezing out the excess water inside the sponge and keeping the sponge moist. When the sponge cleaning component (4) moves to the inside of the lens track frame (10) again, the sponge cleaning component (4) is in a clean state.

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