Optical lens coating device

Abstract

The utility model discloses an optical lens coating device which comprises a vacuum bin, a fixing frame is rotatably connected in the vacuum bin, a first rotating mechanism is arranged on one side, located on the fixing frame, of the vacuum bin, a bin door is installed on the other side, located on the fixing frame, of the vacuum bin, and lens frames are evenly placed in the fixing frame. Lens grooves are uniformly formed in the lens frame, elastic bodies are fixed to the inner walls of the lens grooves, coating openings are formed in the positions, located over and under the lens frame, of the vacuum bin, annular guide rails are arranged on the positions, located on the outer sides of the two coating openings, of the outer wall of the vacuum bin, and an annular frame is rotationally connected into the annular guide rails; and a film coating mechanism is installed on the ring frame, a base is fixed to the bottom of the vacuum bin, a second rotating mechanism is arranged between the base and the ring frame, positioning grooves are evenly formed in the fixing frame, and the positioning grooves are matched with the lens frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating equipment, and particularly relates to an optical lens coating device. Background Art

[0002] As an important part of modern technology, the performance of optical lenses is directly related to the accuracy and effect of various optical devices. However, the performance of optical lenses is often affected by various factors such as light reflection, refraction, transmission, and scattering. These factors not only reduce the imaging quality of optical lenses but may also have a negative impact on the service life of the devices. To improve the performance of optical lenses, the optical lens surface coating technology has emerged. Currently, in the processing process of optical lenses, the demand for double-sided coating is increasing. However, there are mainly two forms of current coating equipment. One is a single-sided coating equipment, which can only coat one side of the lens. If the other side needs to be coated, the lens needs to be manually flipped. This process is not only complex in operation but also low in efficiency. The other is a double-sided coating equipment, which mostly relies on the structural design of the double coating mechanism. Since the coating mechanism is the core component of the coating machine, its manufacturing cost is relatively high, which in turn leads to a high purchase cost of the overall equipment. In addition, in the lens replacement link, since the lens holder is designed as a fixed structure, each lens replacement requires cumbersome loading and unloading operations, which undoubtedly increases the time consumption of the coating process and reduces the production efficiency.

[0003] In view of this, the utility model proposes a new optical lens coating device. The device adopts a single coating mechanism structure, which can achieve double-sided coating of optical lenses, greatly simplifying the operation process. At the same time, the device also designs a lens holder structure that is convenient for quick replacement, effectively shortening the loading and unloading time and significantly improving the efficiency of lens coating.

[0004] For the problems in the related technology, no effective solution has been proposed yet. Content of the Utility Model

[0005] To achieve the above object, the utility model provides the following technical solution: an optical lens coating device, including a vacuum chamber, a fixed frame is rotatably connected inside the vacuum chamber, a first rotation mechanism is arranged on one side of the vacuum chamber where the fixed frame is located, a chamber door is installed on the other side of the vacuum chamber where the fixed frame is located, lens holders are evenly placed inside the fixed frame, lens slots are evenly opened inside the lens holders, elastic bodies are fixed on the inner walls of the lens slots, coating openings are opened above and below the lens holders in the vacuum chamber, annular guide rails are arranged outside the vacuum chamber at the positions of the two coating openings, a ring frame is rotatably connected inside the annular guide rails, a coating mechanism is installed on the ring frame, a base is fixed at the bottom of the vacuum chamber, and a second rotation mechanism is arranged between the base and the ring frame.

[0006] As a preferred technical solution of the present utility model, positioning grooves are uniformly arranged inside the fixing frame, and the positioning grooves are adapted to the lens frames.

[0007] As a preferred technical solution of the present utility model, the first rotation mechanism includes a driving motor and a first gear ring. The first gear ring is fixed to the bottom of the fixing frame, and a first gear is fixed to the output end of the driving motor. The first gear is meshed with the first gear ring.

[0008] As a preferred technical solution of the present utility model, the second rotation mechanism includes a servo motor and a second gear ring. The second gear ring is fixed to the ring frame, and a second gear is fixed to the output end of the servo motor. The second gear is meshed with the second gear ring.

[0009] As a preferred technical solution of the present utility model, one side of the warehouse door is movably connected to the vacuum chamber through a hinge, and a safety lock is installed between the other side of the warehouse door and the vacuum chamber.

[0010] As a preferred technical solution of the present utility model, a transparent observation window is arranged at the center of the warehouse door, and a sealing gasket is fixed at the contact position between the inner side of the warehouse door and the vacuum chamber.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By setting a detachable lens frame design, the present utility model realizes the convenient installation of lenses on another lens frame outside the chamber during the coating process. After the coating operation of the lens frame inside the chamber is completed, it can be quickly taken out, which effectively reduces the time consumption of loading and unloading, and thus significantly improves the overall efficiency of lens coating; by stably arranging an elastomer inside the lens groove of the lens frame, we can utilize the physical properties of the elastomer to effectively enhance the friction between the lens and the lens groove, ensuring their close fit. During this process, the elastomer presses the lens in the reverse direction, so that there are no obstacles on the upper and lower surfaces of the lens, ensuring a clear and unobstructed field of view. At the same time, through the extrusion of the elastomer, the lens is stably held in the lens groove, so as to maintain its stability during the lens coating process and ensure the coating quality; by adopting a single coating mechanism structure for rotation operation, the double-sided coating of optical lenses can be effectively realized, and thus the overall cost of equipment manufacturing can be significantly reduced; a rotation mechanism is set to drive the lens to rotate horizontally to ensure the uniformity of lens coating. Description of the Drawings

[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1Side view of the present utility model;

[0015] Figure 2 Side sectional view of the vacuum chamber in the present utility model (the chamber door is closed);

[0016] Figure 3 Side sectional view of the vacuum chamber in the present utility model (the chamber door is open);

[0017] Figure 4 Top view of the lens holder in the present utility model;

[0018] Figure 5 Structural schematic diagram of the fixing frame in the present utility model;

[0019] In the figure: 1, vacuum chamber; 2, fixing frame; 3, chamber door; 4, lens holder; 5, lens groove; 6, elastic body; 7, coating opening; 8, annular guide rail; 9, ring frame; 10, coating mechanism; 11, base; 12, positioning groove; 13, drive motor; 14, first gear ring; 15, first gear; 16, servo motor; 17, second gear ring; 18, second gear; 19, safety lock; 20, sealing gasket; 21, transparent observation window. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Embodiment

[0022] Please refer to Figures 1-5, the present utility model provides the following technical solutions: A precise optical lens coating device, including a vacuum chamber 1, whose exterior and interior are both designed as spherical structures to ensure the stability of temperature and pressure. Inside the vacuum chamber 1, there is a fixed frame 2, which presents an annular structure, and its outer wall is rotatably connected to the inner wall of the vacuum chamber 1. One side of the vacuum chamber 1 is equipped with a first rotating mechanism, whose main function is to drive the fixed frame 2 to rotate, so as to facilitate the uniformity of the lens during the coating process. To facilitate the replacement and installation of the lens, a chamber door 3 is installed on the other side of the vacuum chamber 1. Inside the fixed frame 2, there are multiple lens holders 4, which are evenly distributed. Each lens holder 4 is internally provided with a lens groove 5 for placing the lens. An elastic body 6 is installed on the inner wall of the lens groove 5, whose function is to firmly fix the lens, increase the friction between the lens groove 5 and the lens side wall, and prevent it from falling during the coating process. In addition, the vacuum chamber 1 is provided with coating openings 7 directly above and below the lens holder 4, so as to facilitate the coating operation of the coating mechanism 10. On the outer wall of the vacuum chamber 1, outside the two coating openings 7, an annular guide rail 8 is installed. Inside the annular guide rail 8, a ring frame 9 is rotatably connected, which is used to drive the coating mechanism 10 to change its orientation for double-layer coating of the lens. The coating mechanism 10 is installed on the ring frame 9 for coating the lens. To ensure the stability of the entire device, a base 11 is fixed at the bottom of the vacuum chamber 1. A second rotating mechanism is provided between the base 11 and the ring frame 9, which is used to drive the rotation of the ring frame 9 and the coating mechanism 10 to achieve all-round coating operation of the lens.

[0023] In order to facilitate the accurate placement of the lens holder 4, in this embodiment, as a preferred technical solution of the present utility model, positioning grooves 12 are evenly arranged inside the fixed frame 2, and the positioning grooves 12 are adapted to the lens holder 4.

[0024] In order to facilitate the rotation of the fixed frame 2 to make the lens coating more uniform, in this embodiment, as a preferred technical solution of the present utility model, the first rotating mechanism includes a driving motor 13 and a first gear ring 14. The first gear ring 14 is fixed to the bottom of the fixed frame 2, and the output end of the driving motor 13 is fixed with a first gear 15, and the first gear 15 is meshed with the first gear ring 14.

[0025] In order to facilitate the adjustment of the coating direction of the coating mechanism 10, in this embodiment, as a preferred technical solution of the present utility model, the second rotating mechanism includes a servo motor 16 and a second gear ring 17. The second gear ring 17 is fixed to the ring frame 9, and the output end of the servo motor 16 is fixed with a second gear 18, and the second gear 18 is meshed with the second gear ring 17.

[0026] In order to facilitate the opening and closing of the chamber door 3, in this embodiment, as a preferred technical solution of the present utility model, one side of the chamber door 3 is movably connected to the vacuum chamber 1 through a hinge, and a safety lock 19 is installed between the other side of the chamber door 3 and the vacuum chamber 1.

[0027] In order to facilitate the observation of the coating situation inside the chamber and ensure the sealing of the chamber, in this embodiment, as a preferred technical solution of the present utility model, a transparent observation window 21 is provided at the center of the chamber door 3, and a sealing gasket 20 is fixed at the contact position between the inner side of the chamber door 3 and the vacuum chamber 1.

[0028] In summary, by means of the above technical solution of the present utility model, during the operation process, it is necessary to ensure that the lens is installed outside the vacuum chamber 1. Specifically, the lens should be sequentially placed in the lens groove 5 of the lens holder 4, and the elastic body 6 attached to the inner wall of the lens groove 5 is squeezed by the lens, so that the elastic body 6 exerts an appropriate pressure at the edge of the lens to achieve the effect of firmly fixing the lens. Subsequently, the chamber door 3 is opened, and the lens holders 4 with the lenses installed are placed one by one in the positioning grooves 12 provided by the fixing rack 2, and after ensuring that the installation is secure, the chamber door 3 is closed.

[0029] In the driving link, it is necessary to use the power output of the driving motor 13 to drive the first gear 15 to rotate, and through the transmission mechanism of the first gear 15 and the first toothed ring 14, the fixing rack 2 is made to perform a circular motion inside the vacuum chamber 1. At the same time, the servo motor 16 also needs to output power to drive the second gear 18 to rotate, and with the linkage effect of the second gear 18 and the second toothed ring 17, the ring frame 9 is driven to rotate.

[0030] During the coating process, first, through the control of the servo motor 16, the coating mechanism 10 on the ring frame 9 is moved to the coating opening 7 directly above the vacuum chamber 1, and the coating mechanism 10 uniformly applies the coating material to the upper surface of the lens inside the lens holder 4 through the coating opening 7. Subsequently, the servo motor 16 is started again, so that the ring frame 9 rotates to the coating opening 7 directly below the vacuum chamber 1, and the lower surface of the lens inside the lens holder 4 is coated through the coating mechanism 10, thus completing the double-sided coating process of the lens.

[0031] After the coating is completed, the chamber door 3 needs to be opened again, the lens holders 4 that have completed the coating are taken out from the positioning grooves 12 of the fixing rack 2, and replaced with new uncoated lens holders 4 for the next round of coating operation.

[0032] Finally, it should be noted that in the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "rotary connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] The foregoing is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An optical lens coating device, comprising a vacuum chamber (1), characterized in that: Inside the vacuum chamber (1), there is a fixed frame (2) rotatably connected. On one side of the fixed frame (2) in the vacuum chamber (1), there is a first rotating mechanism. On the other side of the fixed frame (2) in the vacuum chamber (1), a chamber door (3) is installed. Inside the fixed frame (2), lens holders (4) are evenly placed. Inside the lens holders (4), lens slots (5) are evenly opened. An elastic body (6) is fixed to the inner wall of the lens slots (5). Coating openings (7) are opened directly above and below the lens holders (4) in the vacuum chamber (1). On the outer side of the vacuum chamber (1) at the positions of the two coating openings (7), an annular guide rail (8) is provided. Inside the annular guide rail (8), a ring frame (9) is rotatably connected. A coating mechanism (10) is installed on the ring frame (9). A base (11) is fixed to the bottom of the vacuum chamber (1). A second rotating mechanism is provided between the base (11) and the ring frame (9).

2. An optical lens coating device according to claim 1, characterized in that: Positioning grooves (12) are evenly arranged inside the fixed frame (2), and the positioning grooves (12) are adapted to the lens holders (4).

3. An optical lens coating device according to claim 1, characterized in that: The first rotating mechanism includes a driving motor (13) and a first gear ring (14). The first gear ring (14) is fixed to the bottom of the fixed frame (2). The output end of the driving motor (13) is fixed with a first gear (15), and the first gear (15) is meshed with the first gear ring (14).

4. An optical lens coating device according to claim 1, characterized in that: The second rotating mechanism includes a servo motor (16) and a second gear ring (17). The second gear ring (17) is fixed to the ring frame (9). The output end of the servo motor (16) is fixed with a second gear (18), and the second gear (18) is meshed with the second gear ring (17).

5. An optical lens coating device according to claim 1, characterized in that: One side of the chamber door (3) is movably connected to the vacuum chamber (1) through a hinge, and a safety lock (19) is installed between the other side of the chamber door (3) and the vacuum chamber (1).

6. An optical lens coating device according to claim 1, characterized in that: A transparent observation window (21) is provided at the center of the chamber door (3), and a sealing gasket (20) is fixed at the contact position between the inner side of the chamber door (3) and the vacuum chamber (1).

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