An optical lens film pasting device

Abstract

The application discloses an optical lens film pasting device, relates to the technical field of lens film pasting, and comprises an operation box, the top surface of the operation box is fixedly connected with an observation box in a penetrating mode, an auxiliary mechanism for scraping and cutting an antireflection film is arranged in the observation box, the auxiliary mechanism comprises a rubber ball for pressing the antireflection film to make the antireflection film closely adhere to an optical lens, an electric push rod two is rotationally connected to the inside of the observation box, the output end of the electric push rod two is fixedly connected with an auxiliary box, and a cutting blade for cutting the antireflection film is slidably connected to the inside of the auxiliary box. The rubber ball is used for extruding at the film pasting center of the optical lens, and when extruding, a driving arc-shaped scraper is driven to spread and expand the contact surface of the antireflection film and the optical lens along the center of the optical lens in a radial mode, thus achieving active scraping of the antireflection film before cutting, air is directed to discharge from the center of the optical lens to the edge, and the physical bubble-removing mode is more thorough than the passive bubble-removing mode in the prior art which depends on vacuum negative pressure.

Description

Technical Field

[0001] This application relates to the field of lens coating technology, and in particular to an optical lens coating device. Background Technology

[0002] Optical lenses are lenses made from optical glass. They have specific requirements for optical properties such as refractive index, dispersion, transmittance, spectral transmittance, and light absorption. They are also made of glass with uniform optical properties, capable of changing the direction of light propagation and altering the relative spectral distribution of ultraviolet, visible, or infrared light. During the manufacturing process, optical lenses need to be coated to prevent wear and tear during transportation. The blue coating applied to them acts as an anti-reflective coating, significantly improving the optical performance of the lens through interference effects. Its core function is to reduce reflection and enhance light transmittance, while also providing protection and anti-fouling functions. It is widely used in everyday optics, industrial manufacturing, and scientific research.

[0003] Traditional optical lens coating technology, when using vertical lamination process to process optical lenses, is prone to generating residual air bubbles between the film and the optical lens. The presence of these air bubbles can cause light to form a total internal reflection barrier (abrupt change in refractive index) at the interface between the film and the lens, resulting in the loss of incident light scattering. Utility Model Content

[0004] To improve the problem of residual air bubbles easily generated between the film and the optical lens, this application provides an optical lens film application device.

[0005] The optical lens coating device provided in this application adopts the following technical solution:

[0006] An optical lens coating device includes an operation box, an observation box fixedly connected to the top surface of the operation box, an auxiliary mechanism for scraping and cutting anti-reflective coating inside the observation box, the auxiliary mechanism including a rubber ball for pressing the anti-reflective coating to make it adhere tightly to the optical lens, an electric push rod two rotatably connected inside the observation box, the output end of the electric push rod two being fixedly connected to the auxiliary box, and a cutting blade for cutting the anti-reflective coating being slidably connected inside the auxiliary box.

[0007] By adopting the above technical solution, the operation box serves as the main frame of the device, providing structural support and installation foundation. The observation box is a transparent structure, which facilitates real-time monitoring of the film application process while protecting the internal mechanism. The auxiliary mechanism integrates core components with scraping and cutting functions to ensure that the film material is applied without air bubbles. The rubber ball flexibly presses the anti-reflective film, applying pressure evenly from the center outward to drive out the air under the film and eliminate air bubbles. The electric push rod two provides precise vertical displacement to control the overall lifting and lowering of the auxiliary box. The cutting blade is used to complete the precise cutting of the film material edge.

[0008] Preferably, the auxiliary mechanism further includes a connecting plate fixedly connected to the bottom surface of the auxiliary box, a cylinder rotatably connected to the side of the connecting plate away from the auxiliary box, a threaded groove being provided inside the cylinder, a connecting circular plate being slidably connected inside the cylinder, and a protrusion being fixedly connected to the outer surface of the connecting circular plate to slide and adapt to the threaded groove.

[0009] By adopting the above technical solution, the connecting plate is used to fix the auxiliary box and the cylinder and transmit lifting power. The cylinder has a built-in threaded groove to convert linear motion into rotational motion. The protrusion slides along the threaded groove to drive the connecting plate to rotate.

[0010] Preferably, a return spring is fixedly connected between the connecting plate and the connecting circular plate, the side of the connecting circular plate away from the return spring is fixedly connected to a rubber ball, and a rotating plate is fixedly connected to the outer surface of the cylinder.

[0011] By adopting the above technical solution, the reset spring serves as an elastic element between the connecting plate and the connecting circular plate, and is used to automatically spring back and reset after being scraped flat. The rotating plate is used to constrain the movement trajectory of the sliding column through the arc groove.

[0012] Preferably, the rotating plate has an arc-shaped groove fixedly arranged in the inner circumferential array, and a sliding column is slidably connected inside the arc-shaped groove. The connecting plate is fixedly connected to a fixed plate that abuts against the outer surface of the cylinder and abuts against the rotating plate on the side near the cylinder.

[0013] By adopting the above technical solution, the fixed plate is used to abut against the cylinder and the rotating plate, restricting displacement in non-working directions and ensuring motion stability.

[0014] Preferably, the fixed plate has a rectangular sliding groove arranged in a circular array inside, and an L-shaped movable plate that is fixedly connected to the sliding column is slidably connected inside the rectangular sliding groove.

[0015] By adopting the above technical solution, the rectangular chute is used to guide the L-shaped moving plate to make radial linear motion, and the L-shaped moving plate is used to convert the rotation of the rotating plate into the radial unfolding of the scraper.

[0016] Preferably, an arc-shaped scraper that abuts against the rubber ball is fixedly connected to the side of the L-shaped moving plate away from the sliding column.

[0017] By adopting the above technical solution, the arc-shaped scraper and the rubber ball move synchronously to scrape the film material from the center to the edge. The arc-shaped curved surface fits the convex surface of the lens, eliminating wrinkles and residual air bubbles.

[0018] Preferably, a reciprocating lead screw is rotatably connected through the inside of the auxiliary box, and a nut that is fixedly connected to the cutting blade is symmetrically slidably connected to the outer surface of the reciprocating lead screw. A pointer that is slidably connected to the outer surface of the auxiliary box is fixedly connected to one side of the nut.

[0019] By adopting the above technical solution, the reciprocating screw drives the symmetrical nut to move synchronously in opposite directions, thereby driving the cutting blade to cut precisely along the lens contour. The pointer and scale are used to display the displacement of the cutting blade in real time, realizing the visual adjustment of the cutting size.

[0020] Preferably, the auxiliary box has a scale printed on the side near the pointer, and a locking plate is hinged to one side of the auxiliary box and engages with one side of the reciprocating lead screw. A plug is inserted through the overlap between the reciprocating lead screw and the locking plate.

[0021] By adopting the above technical solution, the snap-fit ​​plate is hinged to lock the reciprocating screw to prevent the reciprocating screw from loosening, and the plug-in column achieves double fixation to ensure no displacement deviation during the cutting process.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By using a rubber ball to squeeze the center of the antireflective coating on the optical lens, and during the squeezing, a curved scraper is driven to spread radially along the center of the optical lens to smooth the contact surface between the antireflective coating and the optical lens. Before cutting, the antireflective coating is actively smoothed, and air is directionally discharged from the center of the optical lens to the edge. This physical defoaming method is more thorough than the passive defoaming that relies on vacuum negative pressure in the existing technology.

[0024] 2. The clamping plate is clamped to one side of the reciprocating lead screw, and the insertion post is inserted through the clamping plate and the inside of the reciprocating lead screw. This fixes the reciprocating lead screw and prevents the cutting blade from shifting position due to long-term operation when cutting the antireflection film, thereby improving the cutting accuracy. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a schematic diagram of the connection structure of the release rollers in this application;

[0027] Figure 3 This is a schematic diagram of the connection structure of cylinder two in this application;

[0028] Figure 4 This is a schematic diagram of the internal structure of the cylinder in this application;

[0029] Figure 5 This is a schematic diagram of the internal structure of the auxiliary box in this application;

[0030] Figure 6 For the purposes of this application Figure 5 Enlarged schematic diagram of the structure at point A in the middle.

[0031] Reference numerals: 1. Control box; 2. Clamping device; 3. Rotating device; 4. Electric push rod one; 5. Lens body; 6. Release roller; 7. Rewind roller; 8. Observation box;

[0032] 91. Electric actuator 2; 92. Auxiliary box; 93. Connecting plate; 94. Cylinder; 95. Threaded groove; 96. Return spring; 97. Connecting circular plate; 98. Rubber ball; 99. Rotating plate; 910. Fixing plate;

[0033] 911. Arc-shaped groove; 912. Sliding column; 913. Rectangular slide; 914. L-shaped moving plate; 915. Arc-shaped scraper; 916. Protrusion; 917. Reciprocating lead screw; 918. Nut;

[0034] 919. Cutting blade; 920. Pointer; 921. Scale; 922. Connecting plate; 923. Connecting post. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0036] This application discloses an optical lens coating device.

[0037] Reference Figure 1 , Figure 2 An optical lens coating device includes an operation box 1. A clamping device 2 for gripping optical lenses is movably connected inside the operation box 1. A rotating device 3 is rotatably connected to the bottom surface of the inner wall of the operation box 1. Electric push rods 4 for moving the optical lenses are fixedly connected to both sides of the rotating device 3. The output end of the electric push rods 4 is connected to a lens body 5 via a suction cup. A release roller 6 is rotatably connected to one side of the operation box 1 for releasing the anti-reflective coating. A take-up roller 7 is rotatably connected to one side of the operation box 1 for taking up the anti-reflective coating. The release roller 6 and the take-up roller 7 are located on the same horizontal plane. The top surface of the operation box 1 is fixedly connected to an observation box 8, which is made of transparent material for observing the internal structure of the observation box 8. The observation box 8 is equipped with an openable protective door for easy maintenance of its internal structure. A circular hole is provided on the bottom surface of the observation box 8 for the lens body 5 to push the anti-reflective coating and extend it. An auxiliary mechanism for scraping and cutting the anti-reflective coating is provided inside the observation box 8.

[0038] In use, the lens body 5 to be coated is placed on the suction cup of the electric push rod 4 by the clamping device 2. Then, the rotating device 3 is rotated to move the lens body 5 to be coated directly below the anti-reflection film. The output end of the electric push rod 4 pushes the lens body 5 to extend, so that the lens body 5 comes into contact with the anti-reflection film and drives the anti-reflection film to extend into the round hole opened on the bottom surface of the observation box 8. Then, the auxiliary mechanism completes the scraping and cutting of the anti-reflection film.

[0039] Reference Figure 2 , Figure 3 , Figure 4 The center of the top surface of the inner wall of the observation box 8 is rotatably connected to the center of the fixed end of the electric actuator 91. The center of the output end of the electric actuator 91 is fixedly connected to the center of the top surface of the auxiliary box 92. The auxiliary mechanism includes a connecting plate 93 fixedly connected to the center of the bottom surface of the auxiliary box 92, and the center points of the auxiliary box 92 and the connecting plate 93 coincide. The center of one side of the connecting plate 93 is rotatably connected to the center of the cylinder 94. The cylinder 94 is located on the side away from the auxiliary box 92. The inside of the cylinder 94 is hollow, and a threaded groove 95 is provided inside the cylinder 94. The inner wall of the cylinder 94 is slidably connected to the connecting circular plate 97. A protrusion 916 is fixedly connected to the outer surface of the connecting circular plate 97 and slidably connected to the threaded groove 95. When When the connecting plate 97 moves upward, the protrusion 916 drives the threaded groove 95 and the cylinder 94 to rotate clockwise. Conversely, when the connecting plate 97 moves downward, the protrusion 916 drives the threaded groove 95 and the cylinder 94 to rotate counterclockwise. A return spring 96 is fixedly connected to the center of the bottom surface of the connecting plate 93. The side of the return spring 96 away from the connecting plate 93 is fixedly connected to the center of the top surface of the connecting plate 97, and the return spring 96 is located inside the cylinder 94. The center of one side of the connecting plate 97 is fixedly connected to the center of the rubber ball 98. The rubber ball 98 is located on the side away from the return spring 96. The rubber ball 98 is made of high-elasticity silicone material, has a diameter of 50mm, has good resilience, and can evenly distribute pressure.

[0040] In use, the extension of the electric actuator 91 causes the auxiliary box 92 and the connecting plate 93 to move down synchronously, so that the rubber ball 98 comes into contact with the center of the top surface of the lens body 5 and is squeezed. The rubber ball 98 is squeezed by the lens body 5 and moves into the inside of the cylinder 94. The movement of the rubber ball 98 causes the connecting circular plate 97 and the protrusion 916, which are fixedly connected to the rubber ball 98, to move together. Since the protrusion 916 is slidably adapted to the threaded groove 95, the movement of the protrusion 916 causes the threaded groove 95 to rotate, which in turn causes the cylinder 94 to rotate.

[0041] Reference Figure 3 , Figure 4The outer surface of the middle part of the cylinder 94 is fixedly connected to the rotating plate 99. Several arc-shaped grooves 911 are fixedly arranged in a circular array inside the rotating plate 99. The inner wall of the arc-shaped grooves 911 is slidably connected to the sliding column 912. One side of the connecting plate 93 is fixedly connected to the fixing plate 910. The fixing plate 910 is located near the cylinder 94 and abuts against the outer surface of the cylinder 94. The fixing plate 910 also abuts against the bottom surface of the rotating plate 99. A rectangular sliding groove 913 is formed in a circular array inside the fixing plate 910. The inner wall of the rectangular sliding groove 913 is slidably connected to the L-shaped moving plate 914, and the top surface of the L-shaped moving plate 914 is fixedly connected to the bottom surface of the sliding column 912. The quantities of the arc-shaped groove 911, sliding column 912, rectangular groove 913, and L-shaped moving plate 914 correspond to each other. When the cylinder 94 rotates clockwise, causing the rotating plate 99 to rotate clockwise, the arc-shaped groove 911 causes the sliding column 912 and L-shaped moving plate 914 to expand outward. Conversely, when the cylinder 94 rotates counterclockwise, causing the rotating plate 99 to rotate counterclockwise, the arc-shaped groove 911 causes the sliding column 912 and L-shaped moving plate 914 to contract inward. One side of the L-shaped moving plate 914 is fixedly connected to the arc-shaped scraper 915. The arc-shaped scraper 915 is located on the side away from the sliding column 912, and the arc-shaped scraper 915 abuts against the outer surface of the rubber ball 98.

[0042] In use, the rotation of the cylinder 94 drives the rotation plate 99, which is fixedly connected to the cylinder 94, to rotate. The rotation of the rotation plate 99 drives the sliding column 912, which is slidably connected inside the arc groove 911, to move. The movement of the sliding column 912 drives the L-shaped moving plate 914, which is fixedly connected to the sliding column 912, to slide inside the rectangular sliding groove 913. This, in turn, drives the arc scraper 915, which is fixedly connected to the L-shaped moving plate 914, to scrape flat on the arc surface of the lens body 5. With the help of the protrusion 916 sliding in the threaded groove 95, the L-shaped moving plate 914 in the circumferential array spreads and moves, so that the arc scraper 915 always moves in close contact with the convex contour of the optical lens, which can dynamically adapt to optical lenses of different specifications.

[0043] Reference Figure 5 , Figure 6The inner wall of the auxiliary box 92 is rotatably connected to the reciprocating lead screw 917. A baffle plate is fixed in the middle of the reciprocating lead screw 917 to limit the movement of the nut 918. A rotating handle is fixed on one side of the reciprocating lead screw 917 that passes through the auxiliary box 92. The outer surface of the reciprocating lead screw 917 is slidably connected to two nuts 918. The two nuts 918 are symmetrical to each other, and the interior of each nut 918 includes balls and a reversing device. A cutting blade 919 is fixedly connected to the bottom of the arc surface of the nut 918. The cutting blade 919 is slidably connected to the bottom surface of the auxiliary box 92 and is used to cut the anti-reflection film. The cutting blade 919 is made of stainless steel with a thickness of 0.2mm, and the blade edge is specially treated to maintain a relatively high precision. The long-life nut 918 has one side of its arc surface fixedly connected to the pointer 920. The pointer 920 is perpendicular to the cutting blade 919. The pointer 920 is slidably connected to the outer surface of the auxiliary box 92. The auxiliary box 92 has a scale 921 printed on one side. The scale 921 is located on the side close to the pointer 920. The pointer 920 and the scale 921 are used to display the displacement of the cutting blade 919 in real time, realizing the visual adjustment of the cutting size. The side of the auxiliary box 92 close to the rotating handle is hinged to the snap-fit ​​plate 922. The snap-fit ​​plate 922 is snapped to the rotating handle of the reciprocating screw 917. The overlapping part of the reciprocating screw 917 and the snap-fit ​​plate 922 is inserted through the insertion post 923.

[0044] In use, the user rotates the reciprocating screw 917, which causes the two nuts 918 to move on the outer surface of the reciprocating screw 917, thereby adjusting the distance between the two cutting blades 919 to accommodate different sized lens bodies 5. After determining the distance between the cutting blades 919, the snap-fit ​​plate 922 is snapped into the rotating handle fixed to the reciprocating screw 917, and the insertion post 923 is inserted into the space between the snap-fit ​​plate 922 and the rotating handle fixed to the reciprocating screw 917 for fixation.

[0045] In this device, the return spring 96 adopts the calculation formula of alloy spring: F=kx, where F is the external force on the spring, k is the spring constant, N / m, and x is the deformation of the spring, m. The elastic force of the alloy spring is then calculated so that it can be used in this device.

[0046] Both electric actuator 1 (4) and electric actuator 2 (91) are Airtac SC series, and a PLC control system is installed outside the control box 1. When electric actuator 1 (4) and electric actuator 2 (91) extend, the contactor engages, the motor rotates forward, and the telescopic rod extends. When electric actuator 1 (4) and electric actuator 2 (91) retract, the motor reverses, and the telescopic rod retracts.

[0047] The threaded groove 95 and the bump 916 are made of hard alloy or ceramic coating material, which has high wear resistance and reduces wear. Furthermore, molybdenum-based grease is used at the contact point between the threaded groove 95 and the bump 916 to further reduce friction and wear.

[0048] The implementation principle of the optical lens coating device in this application is as follows:

[0049] In use, the lens body 5 to be coated is placed on the suction cup of the electric push rod 4 using the clamping device 2. Then, the rotating device 3 is rotated to move the lens body 5 directly below the antireflective coating. The output end of the electric push rod 4 pushes the lens body 5 to extend, so that the lens body 5 contacts the antireflective coating and causes the antireflective coating to extend into the circular hole on the bottom surface of the observation box 8. Then, the electric push rod 91 extends, causing the auxiliary box 92 and the connecting plate 93 to move down simultaneously, so that the rubber ball 98 contacts the center of the top surface of the lens body 5 and is squeezed. The rubber ball 98 is squeezed by the lens body 5 and moves into the inside of the cylinder 94. The movement of the rubber ball 98 causes the connecting circular plate 97 and the protrusion 916 fixedly connected to the rubber ball 98 to move together. The protrusion 916 is slidably adapted to the threaded groove 95. That is, the movement of the protrusion 916 drives the threaded groove 95 to rotate, which in turn drives the cylinder 94 to rotate. The rotation of the cylinder 94 drives the rotating plate 99, which is fixedly connected to the cylinder 94, to rotate. The rotation of the rotating plate 99 drives the sliding column 912, which is slidably connected to the arc groove 911, to move. The movement of the sliding column 912 drives the L-shaped moving plate 914, which is fixedly connected to the sliding column 912, to slide inside the rectangular sliding groove 913. This drives the arc scraper 915, which is fixedly connected to the L-shaped moving plate 914, to scrape flat on the arc surface of the lens body 5. At this time, the cutting blade 919 contacts the edge of the lens body 5. Then, the electric push rod 91 is driven to rotate by the driving device, which drives the cutting blade 919 to rotate, thereby completing the cutting of the anti-reflective coating.

[0050] When it is necessary to adjust the distance between the two cutting blades 919, the user rotates the reciprocating screw 917, which drives the two nuts 918 to move on the outer surface of the reciprocating screw 917, thereby adjusting the distance between the two cutting blades 919 to accommodate different sized lens bodies 5. After determining the distance between the cutting blades 919, the snap-fit ​​plate 922 is snapped into the rotating handle fixed to the reciprocating screw 917, and the insertion post 923 is inserted into the snap-fit ​​plate 922 and the rotating handle fixed to the reciprocating screw 917 for fixation.

[0051] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An optical lens coating device, characterized in that: The system includes an operation box (1), with an observation box (8) fixedly connected to the top surface of the operation box (1). The observation box (8) is equipped with an auxiliary mechanism for scraping and cutting the antireflective coating. The auxiliary mechanism includes a rubber ball (98) for pressing the antireflective coating to make it adhere tightly to the optical lens. An electric push rod (91) is rotatably connected inside the observation box (8). The output end of the electric push rod (91) is fixedly connected to the auxiliary box (92). A cutting blade (919) for cutting the antireflective coating is slidably connected inside the auxiliary box (92).

2. The optical lens coating device according to claim 1, characterized in that: The auxiliary mechanism also includes a connecting plate (93) fixedly connected to the bottom surface of the auxiliary box (92). A cylinder (94) is rotatably connected to the side of the connecting plate (93) away from the auxiliary box (92). A threaded groove (95) is provided inside the cylinder (94). A connecting circular plate (97) is slidably connected inside the cylinder (94). A protrusion (916) that is slidably adapted to the threaded groove (95) is fixedly connected to the outer surface of the connecting circular plate (97).

3. The optical lens coating device according to claim 2, characterized in that: A return spring (96) is fixedly connected between the connecting plate (93) and the connecting circular plate (97). The side of the connecting circular plate (97) away from the return spring (96) is fixedly connected to a rubber ball (98). A rotating plate (99) is fixedly connected to the outer surface of the cylinder (94).

4. The optical lens coating device according to claim 3, characterized in that: The rotating plate (99) has an arc-shaped groove (911) fixedly arranged in the inner circumferential array. A sliding column (912) is slidably connected inside the arc-shaped groove (911). A fixed plate (910) is fixedly connected to the side of the connecting plate (93) near the cylinder (94), abutting against the outer surface of the cylinder (94) and abutting against the rotating plate (99).

5. The optical lens coating device according to claim 4, characterized in that: The fixed plate (910) has a rectangular sliding groove (913) arranged in a circular array inside, and an L-shaped moving plate (914) that is fixedly connected to the sliding column (912) is slidably connected inside the rectangular sliding groove (913).

6. The optical lens coating device according to claim 5, characterized in that: An arc-shaped scraper (915) that abuts against the rubber ball (98) is fixedly connected to the side of the L-shaped moving plate (914) away from the sliding column (912).

7. The optical lens coating device according to claim 1, characterized in that: The auxiliary box (92) is rotatably connected to a reciprocating lead screw (917). The outer surface of the reciprocating lead screw (917) is symmetrically slidably connected to a nut (918) that is fixedly connected to a cutting blade (919). A pointer (920) that is slidably connected to the outer surface of the auxiliary box (92) is fixedly connected to one side of the nut (918).

8. The optical lens coating device according to claim 7, characterized in that: The auxiliary box (92) has a scale (921) printed on the side near the pointer (920). A snap-fit ​​plate (922) is hinged to one side of the auxiliary box (92) and snaps into one side of the reciprocating lead screw (917). A plug-in post (923) is inserted through the overlap between the reciprocating lead screw (917) and the snap-fit ​​plate (922).

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