An optical lens coating device

Abstract

The application discloses an optical lens coating device, which comprises a vacuum box, a transition unit for mixing and integrating coating liquid, an execution unit for detecting concentration and a shunt unit; a vertical cylinder is arranged at the lower end of the vacuum box, a motor is arranged at the upper end of the vertical cylinder, a polygonal cylinder is connected with the output shaft of the motor, a clamping mechanism is arranged on the polygonal cylinder, and a liquid supply mechanism is arranged on one side of the vacuum box; the transition unit comprises a taper cylinder arranged on the vertical cylinder, a small-diameter end of the taper cylinder is provided with a fixed column strip, and an inclined column is rotatably connected to the fixed column strip; in the application, the atomized coating liquid applies force to the second threaded plate and the first threaded plate, the two are rotated, the connecting strip mixes the atomized coating liquid, the atomized coating liquid is integrated and uniformed, when the high-concentration atomized coating liquid is input, the pitch of the second threaded plate is reduced, the amount of the high-concentration atomized coating liquid flowing is reduced, the stability of the concentration after integration is ensured, the uniformity of the optical lens coating is ensured, and the coating effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical lens coating device, and particularly relates to an optical lens coating device. BACKGROUND

[0002] An optical lens is an optical element used in optical instruments such as cameras, telescopes and microscopes, and its main function is to focus light onto an image sensor or target. It is composed of multiple transparent optical glass elements that are combined in a certain way to form an optical system that can control the passage of light. The coating of an optical lens refers to the process of covering a special coating on the surface of the optical lens, and the main purpose is to reduce reflection and improve transmittance, durability and anti-pollution ability. The basic principle of coating is to use the reflection and refraction of light in different media, and to form a multi-layer coating structure on the surface of the optical lens by using a specific multi-layer coating technology, so that the light passing through the lens is reflected as little as possible, and as much as possible passes through the lens into the body to improve the optical transmission efficiency.

[0003] The patent with the publication number CN113245097A discloses an efficient coating device and method for optical lens production, which mainly sprays the coating liquid in the form of mist onto the optical lens by using an atomizer in a vacuum tank to complete the coating.

[0004] Through comparison of the file and the prior art, it is found that in the field of optical lens coating device, the coating liquid is mostly atomized and sprayed onto the optical lens to complete the coating during coating, but the uniformity of the atomized coating liquid is not the same, and the amount of the coating liquid per unit area sprayed onto the optical lens is different, which is easy to cause uneven coating thickness and poor coating effect. SUMMARY

[0005] The purpose of the present application is to provide an optical lens coating device to solve the above problems.

[0006] The present application achieves the above-mentioned purpose by the following technical solutions:

[0007] An optical lens coating device, comprising a vacuum box body, a transition unit for mixing and integrating the coating liquid, an execution unit for detecting the concentration, and a shunt unit.

[0008] Vacuum box: the inner lower end is provided with a vertical cylinder, the upper end of the vertical cylinder is provided with a motor, the output shaft of the motor is connected with a polygonal cylinder, the polygonal cylinder is provided with a clamping mechanism, one side of the vacuum box is provided with a liquid supply mechanism; the vacuum pump on the other side of the vacuum box works, the vacuum box after being closed can be pumped, the clamping mechanism works, the optical lens to be plated can be positioned at the specified position, the liquid supply mechanism works, the plating liquid can be heated and atomized to flow into the vertical cylinder, when the motor works with the polygonal cylinder rotating, the plating of the multiple optical lenses positioned on the polygonal cylinder can be carried out.

[0009] Transition unit: contains a taper cylinder arranged on the vertical cylinder, the small diameter end of the taper cylinder is provided with a fixed column strip, the inclined column is rotatably connected to the fixed column strip, the lower end of the inclined column is provided with an execution unit, two groups of sliding rings are slidably connected to the inclined column, the sliding rings are connected with connecting strips, one group of the connecting strips is connected with the first threaded plate, the other group of the connecting strips is connected with the second threaded plate; the heated and atomized plating liquid in the vertical cylinder enters the taper cylinder during continuous conveying, and the plating liquid flowing from the large diameter end to the small diameter end of the taper cylinder applies force to the second threaded plate and the first threaded plate, and the two rotate, the connecting strips can mix the atomized plating liquid, and the atomized plating liquid rotates and flows with the taper cylinder, and the diameter gradually decreases.

[0010] Shunt unit: contains a shunt box arranged at the small diameter end of the taper cylinder, the inside of the shunt box is provided with a partition plate, and two groups of symmetrical shunt strips are arranged on both sides of the partition plate. The atomized plating liquid integrated at the small diameter end of the taper cylinder rotates into the shunt box during continuous flow, and the atomized plating liquid contacts the two groups of shunt strips on both sides after entering, is preliminarily divided by the long shunt strip in the middle, and is divided again by the short shunt strips on both sides of the long shunt strip, and can be divided multiple times.

[0011] Further, the execution unit contains a guide cylinder, a T-shaped column is slidably connected in the guide cylinder, a bowl-shaped plate is arranged at one end of the T-shaped column extending out of the guide cylinder, and a push strip is arranged at one end of the T-shaped column extending into the guide cylinder. When the atomized plating liquid is continuously input, the atomized plating liquid applies force to the second threaded plate and the first threaded plate, and also applies force to the bowl-shaped plate. In the natural state, the T-shaped column with the bowl-shaped plate is in the extended position under the action of gravity. When the atomized plating liquid of normal concentration is input, the bowl-shaped plate is forced to retract the T-shaped column to the normal concentration position. When the concentration of the atomized plating liquid increases, the proportion of the number of gas molecules in a unit volume to the total number of gas molecules increases. When the temperature and pressure remain unchanged, the gas pressure is proportional to the number of gas molecules. Therefore, the pressure increases, and the bowl-shaped plate retracts the T-shaped column to the high concentration position again, and the push strip pushes the other group of the lower sliding rings to move synchronously.

[0012] Further, the first threaded plate and the second threaded plate are both conical, the second threaded plate has a certain elasticity, the pitch of the second threaded plate is greater than that of the first threaded plate, and the first threaded plate is connected with the second threaded plate.

[0013] Further, one end of the push bar extending out of the guide cylinder is connected with another group of lower slide rings.

[0014] Further, the inclined column is located in the conical cylinder, and the inside of the guide cylinder is in communication with the outside air.

[0015] Further, the bowl-shaped plate is located at the center of the second threaded plate, and the push bars are all rhombic and have different lengths.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The atomized coating solution is continuously delivered to apply force to the second threaded plate and the first threaded plate, and the two plates rotate, and the connecting rod mixes the atomized coating solution, and the atomized coating solution rotates and flows, and the diameter gradually decreases, and the atomized coating solution is sprayed after being integrated and uniformly distributed, and the coating of the optical lens is more uniform, and the coating effect is better.

[0018] 2. When the high-concentration atomized coating solution is input, the second threaded plate is stressed, the pressure increases, the bowl-shaped plate moves another group of lower slide rings through the T-shaped column and the push bar, the pitch of the second threaded plate decreases, the amount of high-concentration atomized coating solution flowing is reduced, the stability of the concentration of the atomized coating solution integrated to the small-diameter end of the conical cylinder is ensured, and the uniformity of the coating of the optical lens is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings.

[0020] Figure 1 is a schematic diagram of the overall structure of the optical lens coating device;

[0021] Figure 2 is a schematic diagram of the front side cross-sectional structure of the optical lens coating device;

[0022] Figure 3 is a schematic diagram of the side cross-sectional structure of the optical lens coating device;

[0023] Figure 4 is a schematic diagram of the exploded structure of the optical lens coating device;

[0024] Figure 5 is a schematic diagram of the structure of the inclined column portion of the optical lens coating device;

[0025] Figure 6 is a schematic diagram of the structure of the internal portion of the tapered cylinder of the optical lens coating device;

[0026] Figure 7 is a schematic diagram of the internal structure of the guide cylinder of the optical lens coating device;

[0027] Figure 8 is a schematic diagram of the structure of the flow divider box of the optical lens coating device;

[0028] Figure 9 is a schematic diagram of the internal structure of the flow divider box of the optical lens coating device.

[0029] The reference signs are explained as follows:

[0030] 1, vacuum box body; 2, vertical cylinder; 3, motor; 4, polygonal cylinder; 5, clamping mechanism; 6, tapered cylinder; 7, fixed column strip; 8, inclined column; 9, slip ring; 10, connecting strip; 11, first threaded plate; 12, second threaded plate; 13, guide cylinder; 14, T-shaped column; 15, bowl-shaped plate; 16, push strip; 17, flow divider box; 18, partition plate; 19, flow divider strip; 20, liquid supply mechanism; 21, vacuum pump. DETAILED DESCRIPTION

[0031] In the description of the present application, it is to be understood by those skilled in the art that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0032] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] The present application will be further described below in conjunction with the drawings:

[0034] Embodiment

[0035] As Figures 1-9 shown, an optical lens coating device comprises a vacuum box 1, a transition unit for mixing and integrating the coating liquid, an execution unit for detecting the concentration and a shunt unit;

[0036] The vacuum box 1 is provided with a vertical cylinder 2 at the lower end inside, the upper end of the vertical cylinder 2 is provided with a motor 3, the output shaft of the motor 3 is connected with a polygonal cylinder 4, the polygonal cylinder 4 is provided with a clamping mechanism 5, one side of the vacuum box 1 is provided with a liquid supply mechanism 20; as Figure 1 、 Figure 2 and Figure 3 shown, the vacuum pump 21 on the other side of the vacuum box 1 works, which can pump the closed vacuum box 1 to ensure the stability of the coating environment, the clamping mechanism 5 works to position the optical lens to be coated at the specified position, the liquid supply mechanism 20 works to heat and atomize the coating liquid and flow into the vertical cylinder 2, when the motor 3 works with the polygonal cylinder 4 rotates, the plurality of optical lenses positioned on the polygonal cylinder 4 can be coated.

[0037] Transition unit: including the taper cylinder 6 set in the vertical cylinder 2, the small caliber end of the taper cylinder 6 is provided with the fixed column strip 7, the fixed column strip 7 is rotatably connected with the inclined column 8, the lower end of the inclined column 8 is provided with the execution unit, the inclined column 8 is slidably connected with two groups of sliding rings 9, the sliding ring 9 is connected with the connecting strip 10, one group of connecting strips 10 is connected with the first threaded plate 11, the other group of connecting strips 10 is connected with the second threaded plate 12; as shown in Figure 3 、 Figure 5 and Figure 6 The heated and atomized plating solution in the vertical cylinder 2 enters the taper cylinder 6 during continuous conveying, and flows from the large caliber end to the small caliber end of the taper cylinder 6, which will apply force to the second threaded plate 12 and the first threaded plate 11, and the two will rotate. The connecting strip 10 can mix the atomized plating solution, and the atomized plating solution rotates and flows with it, and the caliber gradually decreases, which can realize the integration of the atomized plating solution. After integration, it is dispersed and sprayed, which is more uniform, and the plating effect is better. It prevents uneven plating thickness and poor plating effect caused by uneven atomized plating solution during flow.

[0038] Shunt unit: including the shunt box 17 provided at the small caliber end of the taper cylinder 6, the inside of the shunt box 17 is provided with the partition plate 18, and the two sides of the partition plate 18 are respectively provided with two groups of symmetrical shunt strips 19. As shown in Figure 3 、 Figure 6 、 Figure 8 and Figure 9 The atomized plating solution after integration at the small caliber end of the taper cylinder 6 rotates into the shunt box 17 during continuous flow, and the atomized plating solution contacts the two groups of shunt strips 19 on both sides after entering, and is uniformly divided by the long shunt strip 19 in the middle first, and then is uniformly divided again by the short shunt strips 19 on both sides of the long shunt strip 19. The integrated and uniform atomized plating solution can be uniformly sprayed on the optical lens to be plated in a certain sector, which improves the plating effect.

[0039] The execution unit includes the guide cylinder 13, the T-shaped column 14 is slidably connected inside the guide cylinder 13, the T-shaped column 14 is provided with the bowl-shaped plate 15 at one end extending out of the guide cylinder 13, and the T-shaped column 14 is provided with the push strip 16 at one end extending into the guide cylinder 13. As shown in Figure 3 、 Figure 5 、 Figure 6 and Figure 7As shown, when the atomized plating solution is continuously input, the atomized plating solution exerts force on the second threaded plate 12 and the first threaded plate 11, and at the same time, exerts force on the bowl-shaped plate 15. Under the action of gravity, the T-shaped column 14 with the bowl-shaped plate 15 is in the extended position. When the atomized plating solution of normal concentration is input, the bowl-shaped plate 15 with the T-shaped column 14 is retracted to the normal concentration position. When the concentration of the atomized plating solution increases, the proportion of the number of gas molecules in a unit volume to the total number of gas molecules increases. When the temperature and pressure remain unchanged, the gas pressure is proportional to the number of gas molecules. Therefore, the pressure increases, and the bowl-shaped plate 15 pushes the T-shaped column 14 to retract to the high concentration position again. The push bar 16 pushes the other group of lower sliding rings 9 to move synchronously, thereby providing a basis for changing the pitch of the second threaded plate 12.

[0040] The first threaded plate 11 and the second threaded plate 12 are both conical. The second threaded plate 12 has a certain elasticity, and the pitch of the second threaded plate 12 is greater than that of the first threaded plate 11. The first threaded plate 11 is connected with the second threaded plate 12. As shown in Figure 3 、 Figure 5 、 Figure 6 and Figure 7 shown, when the atomized plating solution of normal concentration is continuously input, the second threaded plate 12 retracts, and the pitch decreases to the normal distance. When the atomized plating solution of high concentration is input, force is exerted on the second threaded plate 12, and the second threaded plate 12 retracts again, and the pitch decreases to the high concentration distance. At this time, the flow-through space between the second threaded plates 12 decreases, which can reduce the flow-through amount of the atomized plating solution of high concentration, thereby ensuring the stability of the concentration of the atomized plating solution at the small-diameter end of the tapered cylinder 6, and thereby ensuring the uniformity of the plating of the optical lens and improving the plating effect.

[0041] One end of the push bar 16 extending out of the guide cylinder 13 is connected with the other group of lower sliding rings 9. As shown in Figure 3 、 Figure 5 、 Figure 6 and Figure 7 shown, when the atomized plating solution of high concentration is input, the pitch of the second threaded plate 12 decreases, and at the same time, the bowl-shaped plate 15 pushes the T-shaped column 14 to retract, and the push bar 16 pushes the other group of lower sliding rings 9 to move upwards, which can further ensure the stability of the pitch decrease of the second threaded plate 12, improve the control of the flow-through amount of the atomized plating solution of high concentration, and ensure the uniformity of the plating.

[0042] The inclined column 8 is located in the tapered cylinder 6, and the inside of the guide cylinder 13 is in communication with the outside air. As shown in Figure 6 and Figure 7 shown, the inside of the guide cylinder 13 is in communication with the outside air, which can ensure the stability of the sliding of the bowl-shaped plate 15 pushing the T-shaped column 14.

[0043] The bowl-shaped plate 15 is located at the center of the second threaded plate 12, and the push bars 16 are all rhombic and have different lengths. As shown in Figure 5 、 Figure 6 ,Figure 8 and Figure 9 As shown, the uniformly atomized coating liquid after rotation and integration flows into the distribution box 17, where it can be evenly distributed by the diamond-shaped pushers 16 of varying lengths, creating a certain fan-shaped surface to ensure the effect of spraying onto the optical lens surface and stabilize the coating effect.

[0044] An optical lens coating apparatus includes the following steps:

[0045] a. such as Figures 1-9 As shown, after opening the vacuum chamber 1 and placing the optical lens to be coated in the designated position, the working lens is fixed by the clamping mechanism 5. Then, the vacuum chamber 1 is closed, and the vacuum pump 21 on the other side works to evacuate the sealed vacuum chamber 1 to ensure the stability of the coating environment. The liquid supply mechanism 20 works to heat and atomize the coating liquid and flow it into the vertical cylinder 2. When the motor 3 works to rotate the polygonal cylinder 4, the multiple optical lenses positioned on the polygonal cylinder 4 can be coated.

[0046] b, such as Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9 As shown, the heated and atomized coating liquid in the vertical cylinder 2 enters the conical cylinder 6 during continuous conveying. As it flows from the large-diameter end to the small-diameter end of the conical cylinder 6, it applies force to the second threaded plate 12 and the first threaded plate 11, causing them to rotate. The connecting bar 10 can mix the atomized coating liquid evenly, while the atomized coating liquid rotates and flows. As the diameter gradually decreases, the atomized coating liquid can be integrated. The integrated and uniform atomized coating liquid flows into the distribution box 17, where it is evenly distributed by the diamond-shaped push bars 16 of varying lengths, creating a certain fan-shaped surface. This ensures that the liquid is sprayed onto the optical lens surface more evenly, resulting in a better coating effect. This effectively prevents uneven coating thickness and poor coating effect caused by the uneven flow of the atomized coating liquid.

[0047] c. For example Figure 3 , Figure 5 , Figure 6 and Figure 7When the normal concentration of atomized coating solution is continuously input, the second threaded plate 12 is contracted, the pitch is reduced to the normal distance, the bowl-shaped plate 15 is forced to contract with the T-shaped column 14 to the normal concentration position, when the high concentration of atomized coating solution is input, the second threaded plate 12 is forced, the second threaded plate 12 will contract again, at the same time, the proportion of the number of gas molecules in unit volume to the total number of gas molecules is increased, when the temperature and pressure are unchanged, the gas pressure is proportional to the number of gas molecules, so the pressure is increased, the bowl-shaped plate 15 will push the T-shaped column 14 to contract to the high concentration position again, the push strip 16 pushes the other group of lower side sliding rings 9 to move synchronously, the pitch of the second threaded plate 12 is reduced more stably, the pitch is reduced to the high concentration distance, the flow-through space between the second threaded plate 12 is reduced, the amount of high concentration atomized coating solution flow-through can be reduced, so as to ensure the stability of the concentration of atomized coating solution integrated to the small caliber end of the cone cylinder 6, so as to ensure the uniformity of coating of the optical lens, and improve the effect of coating.

[0048] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above-mentioned embodiments, the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. An optical lens coating device, characterized in that: It includes a vacuum box (1), a transition unit for mixing and integrating plating solution, an execution unit for detecting concentration and a shunt unit. The vacuum box (1) is internally provided with a vertical cylinder (2), the upper end of the vertical cylinder (2) is provided with a motor (3), the output shaft of the motor (3) is connected with a polygonal cylinder (4), the polygonal cylinder (4) is provided with a clamping mechanism (5), one side of the vacuum box (1) is provided with a liquid supply mechanism (20). The transition unit includes a taper cylinder (6) arranged on the vertical cylinder (2), the small-diameter end of the taper cylinder (6) is provided with a fixed column strip (7), the fixed column strip (7) is rotatably connected with an inclined column (8), the lower end of the inclined column (8) is provided with an execution unit, the inclined column (8) is slidably connected with two groups of sliding rings (9), the sliding rings (9) are both connected with connecting strips (10), one group of the connecting strips (10) is connected with a first threaded plate (11), the other group of the connecting strips (10) is connected with a second threaded plate (12). The shunt unit includes a shunt box (17) arranged at the small-diameter end of the taper cylinder (6), the inside of the shunt box (17) is provided with a partition plate (18), both sides of the partition plate (18) are respectively provided with two groups of symmetrical shunt strips (19); the execution unit includes a guide cylinder (13), the inside of the guide cylinder (13) is slidably connected with a T-shaped column (14), the end of the T-shaped column (14) extending out of the guide cylinder (13) is provided with a bowl-shaped plate (15), the end of the T-shaped column (14) extending into the guide cylinder (13) is provided with a push strip (16); the first threaded plate (11) and the second threaded plate (12) are both conical, the second threaded plate (12) has a certain elasticity, the pitch of the second threaded plate (12) is greater than that of the first threaded plate (11), the first threaded plate (11) is connected with the second threaded plate (12); the end of the push strip (16) extending out of the guide cylinder (13) is connected with the other group of lower sliding rings (9). 2.The optical lens coating device of claim 1, wherein: The inclined column (8) is located in the taper cylinder (6), the inside of the guide cylinder (13) is in communication with the outside air. 3.The optical lens coating device of claim 1, wherein: The bowl-shaped plate (15) is located at the center of the second threaded plate (12), the push strips (16) are all rhombic and have different lengths.

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