Lens cleaning device

Abstract

The utility model discloses an embodiment of a lens cleaning device, including conveying mechanism, first blowing mechanism and second blowing mechanism. First blowing mechanism and second blowing mechanism are respectively movably located above and below conveying mechanism, and both oppositely set. Conveying mechanism is used for conveying a plurality of lens tray, and each lens tray is equipped with the positioning through -hole of positioning lens body. First blowing mechanism is equipped with the first air outlet of air port downward and first suction port, and second blowing mechanism is equipped with the second air outlet of air port upward and second suction port. After conveying mechanism sends lens tray into between first blowing mechanism and second blowing mechanism, both reciprocate along the predetermined direction, and the lens body is swept and sucked, and the blowing and sucking system cooperation positioning through -hole on lens tray can form directional strong air current, ensure that air current fully covers the upper and lower surfaces and the circumferential side of lens, realize efficient, all -round cleaning.

Description

Technical Field

[0001] This utility model relates to the technical field of camera module processing equipment, specifically to a lens cleaning device. Background Technology

[0002] During the manufacturing of precision components such as optical lenses and camera modules, their surfaces readily attract micron-sized contaminants such as dust and fibers. If these contaminants are not removed, they directly impact the product's imaging quality and yield. Currently, conventional cleaning methods primarily employ unilateral air blowing or electrostatic dust removal. While simple air blowing can remove some of the deposits, it easily causes contaminants to float within the cleaning chamber, settle again, or even fall into the gaps in the lens structure, creating cleaning dead zones. Furthermore, for lenses requiring double-sided cleaning or lens modules with complex structures, unilateral airflow is insufficient to effectively cover the back and side edges, resulting in uneven cleaning. In addition, traditional cleaning equipment uses a single airflow path, leading to low efficiency in removing tightly adhered particles. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a lens cleaning device that can achieve efficient and comprehensive cleaning of the lens.

[0004] This utility model embodiment provides a lens cleaning device, which includes: The conveying mechanism carries multiple lens trays arranged sequentially along a predetermined direction. Each lens tray carries at least one lens body, and the lens tray is provided with at least one positioning through hole for positioning the lens body. The first blowing mechanism moves in a predetermined direction and is located above the conveying mechanism. The first blowing mechanism is provided with at least one first blowing port with the air port facing downward, and at least one first suction port with the air port facing downward is provided next to each first blowing port. The second blowing mechanism moves along a predetermined direction and is located below the conveying mechanism and opposite to the first blowing mechanism. The second blowing mechanism includes at least one second blowing port with the air inlet facing upward, and at least one second suction port with the air inlet facing upward is provided next to each second blowing port. The conveying mechanism is configured to move the lens tray between the first air blowing mechanism and the second air blowing mechanism, and the first air blowing mechanism and the second air blowing mechanism reciprocate in a predetermined direction to blow air to clean the lens body.

[0005] Optionally, each positioning through hole is surrounded by at least one air outlet, which extends through the lens tray in the vertical direction and is laterally connected to the positioning through hole.

[0006] Optionally, the air outlets are arranged symmetrically along the radial direction of the positioning through holes.

[0007] Optionally, the air outlet is a circular through hole, a semi-circular through hole, or an elliptical through hole.

[0008] Optionally, each positioning through hole includes a limiting groove and an avoidance through hole that are connected vertically, wherein the size of the limiting groove is larger than the size of the avoidance through hole.

[0009] Optionally, a clearance groove is provided around the limiting groove, and the clearance groove is laterally connected to the limiting groove.

[0010] Optionally, the upper surface of the lens tray is provided with at least one positioning post.

[0011] Optionally, the lens tray has grips on both sides.

[0012] Optionally, the surface of the lens tray may also have an identification code containing information about the lens itself.

[0013] Optionally, the lens cleaning device also includes: The pressure plate is located between the conveying mechanism and the first air blowing mechanism along the height direction; A lifting mechanism is located below the conveying mechanism. The lifting mechanism includes a drive unit and a carrier plate. The drive unit is configured to drive the carrier plate to move along the height direction. The conveying mechanism moves the lens tray between the first and second air blowing mechanisms, and the driving component drives the carrier plate to move upward and moves the lens tray to abut against the pressure plate.

[0014] Optionally, the pressure plate is provided with at least one ventilation hole, and the number and position of the ventilation holes correspond one-to-one with the number and position of the positioning holes.

[0015] This utility model discloses a lens cleaning device, including a conveying mechanism, a first blowing mechanism, and a second blowing mechanism. The first and second blowing mechanisms are movably located above and below the conveying mechanism, respectively, and are arranged opposite to each other. The conveying mechanism is used to convey multiple lens trays, each lens tray having a positioning through hole for positioning the lens body. The first blowing mechanism has a first blowing port and a first suction port facing downwards; the second blowing mechanism has a second blowing port and a second suction port facing upwards. After the conveying mechanism sends the lens tray between the first and second blowing mechanisms, the two move back and forth in a predetermined direction to blow and suction the lens body. This blowing and suction system, in conjunction with the positioning through holes on the lens trays, can form a directional strong airflow, ensuring that the airflow fully covers the upper and lower surfaces and periphery of the lens, achieving efficient and all-round cleaning. Attached Figure Description

[0016] The above and other objects, features, and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which: Figure 1 This is a schematic diagram of the lens tray structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the limiting groove and the avoidance through hole in an embodiment of the present utility model; Figure 3 This is a schematic diagram showing the positional relationship between the lens tray and the air blowing mechanism in an embodiment of this utility model.

[0017] Figure label: 10-Lens tray; 11-Positioning through hole; 111-Limiting groove; 112-Avoidance through hole; 13-Air outlet; 14-Avoidance groove; 15-Positioning post; 16-Holding part; 17-Identification code; 21-First air blowing mechanism; 211-First air blowing port; 212-First air intake port; 22-Second air blowing mechanism; 221-Second air blowing port; 222-Second air intake port; 30-Lens body. Detailed Implementation

[0018] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0019] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0020] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0022] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] This application provides a lens cleaning device, which includes a conveying mechanism, a first air blowing mechanism 21, and a second air blowing mechanism 22. The conveying mechanism carries a plurality of lens trays 10, each lens tray 10 carrying at least one lens body 30. The first air blowing mechanism 21 and the second air blowing mechanism 22 are respectively movably positioned above and below the conveying mechanism. During operation, the conveying mechanism sequentially feeds the lens trays 10 between the first air blowing mechanism 21 and the second air blowing mechanism 22. The first air blowing mechanism 21 and the second air blowing mechanism 22 can reciprocate in a predetermined direction, simultaneously blowing and suctioning the lens body 30 located on the lens tray 10, forming a directional strong airflow to efficiently remove contaminants from the surface of the lens body 30.

[0024] And, refer to Figure 1 In this application, each lens tray 10 is provided with at least one positioning through hole 11, and each positioning through hole 11 can position one lens body 30. The shape and size of the positioning through hole 11 are designed according to the shape and size of the lens body 30 to achieve a small gap fit between the two, which not only ensures that the lens body 30 is stably held during the cleaning process, but also facilitates subsequent handling. Multiple positioning through holes 11 are arranged in a matrix pattern on the lens tray 10, which not only improves the space utilization of the tray, but also facilitates precise alignment with the first air blowing mechanism 21 above and the second air blowing mechanism 22 below, ensuring the consistency and effectiveness of the airflow path. In addition, the positioning through holes 11 also serve as airflow channels, allowing the airflow generated by the upper and lower air blowing mechanisms to pass smoothly through the main surface of the lens body 30 and its surrounding gaps, thereby achieving all-round, dead-angle-free cleaning of its upper and lower surfaces and side walls, significantly improving the overall cleaning efficiency and cleanliness.

[0025] Reference Figure 2 Each positioning through-hole 11 has at least one air outlet 13 surrounding its outer side. This air outlet 13 extends vertically through the lens tray 10 and is laterally connected to the positioning through-hole 11. During cleaning, when airflow blows towards the lens body 30 from the vertical direction, the air outlet 13 acts as an auxiliary exhaust and guide channel, quickly guiding the airflow containing contaminants out of the cleaning area and preventing contaminants from forming eddies or secondary settling around the lens body 30. This design significantly improves airflow management during cleaning, providing a strong guarantee for achieving thorough cleaning.

[0026] Furthermore, the air outlets 13 are arranged radially symmetrically along the positioning through-holes 11. For example, two air outlets 13 (symmetrically arranged at 180°) or four air outlets 13 (symmetrically arranged at 90°) are arranged around one positioning through-hole 11. This symmetrical layout ensures that the airflow discharged laterally from the positioning through-holes 11 is balanced and stable, thereby forming a uniform airflow field around the lens body 30. This design effectively avoids the problem of uneven cleaning force that may be caused by unilateral exhaust, and prevents the lens body 30 from shifting due to asymmetrical lateral aerodynamic pressure, thereby ensuring the consistency of the cleaning process and the stability of the lens body 30 on the lens tray 10.

[0027] Optionally, the air outlet 13 can be a circular through-hole, a semi-circular through-hole, or an elliptical through-hole. Circular through-holes are easy to manufacture and provide balanced airflow characteristics; semi-circular through-holes (composed of a complete circular hole and another structure through a shared wall surface) are suitable for arrangement in compact spaces; elliptical through-holes can provide a larger flow area in a specific direction, which is beneficial for achieving a directional, strong airflow effect. Designers can also choose other different shapes for optimization based on specific clean airflow dynamics requirements, tray material strength, and space layout constraints.

[0028] Reference Figure 2 In this embodiment, the positioning through-hole 11 is generally stepped, including a limiting groove 111 and a clearance through-hole 112 connected vertically. The limiting groove 111 is located above, and the clearance through-hole 112 is located below. The size of the limiting groove 111 is larger than the size of the clearance through-hole 112. Furthermore, the diameter (or profile) of the limiting groove 111 is slightly larger than the outer diameter of the optical part of the lens body 30, serving to receive and radially limit the optical part of the lens body 30. The diameter of the clearance through-hole 112 is smaller than the diameter of the limiting groove 111 but larger than the outer diameter of the lens barrel of the lens body 30, allowing the lens barrel to extend into it. The end face of the optical part of the lens body 30 abuts against the stepped surface of the limiting groove 111, and the clearance through-hole 112 provides an unobstructed passage for the air blowing cleaning or optical inspection of the lower second air blowing mechanism 22.

[0029] Reference Figure 2 The limiting groove 111 is surrounded by a clearance groove 14. This clearance groove 14 is an annular groove or a partial groove recessed into the upper surface of the lens tray 10. The clearance groove 14 is laterally connected to the limiting groove 111, providing necessary operating space for placing and removing the lens body 30 (e.g., using a robotic arm, nozzle, or manual operation), and preventing collisions or friction between tools and the lens tray 10. Furthermore, the clearance groove 14 can collect trace amounts of dust overflowing from the edge of the limiting groove 111 and assist in the diffusion of lateral airflow during blowing, improving the cleaning effect.

[0030] Reference Figure 2In this embodiment, some air outlets 13 overlap with the limiting groove 111, and the upper opening of some air outlets 13 is located at the bottom of the limiting groove 111. This design reduces the number of openings on the lens tray 10, avoiding weakening the structural strength of the lens tray 10 due to excessive hollowing. At the same time, the overlap between the air outlets 13 and the limiting groove 111 also enables functional integration, allowing the air outlets 13 and the limiting groove 111 to work together to promote airflow diffusion and pollutant discharge, improving overall cleaning efficiency and device reliability.

[0031] Reference Figure 1 The upper surface of the lens tray 10 is also provided with at least one positioning post 15, which is used to accurately position and cooperate with other equipment (such as pressure plate) to ensure that each lens body 30 can be accurately moved to the preset cleaning or inspection station.

[0032] Reference Figure 1 The lens tray 10 has gripping parts 16 on both sides, which can be configured as recessed finger grooves, protruding lugs, or standard robot gripping edges. This design facilitates the application of force and transfer during manual operation, while also providing a standardized and reliable gripping interface for automated handling systems (such as the grippers of automated guided vehicles or robotic arms).

[0033] Furthermore, the surface of the lens tray 10 is also equipped with an identification code 17 containing information about the lens body 30, such as a one-dimensional barcode, a QR code, or an RFID tag. This identification code 17 contains information about the tray and the batch, model, and manufacturing process status of the lenses it carries. The production management system can read this information using a barcode scanner to achieve full-process traceability for each lens tray 10, including but not limited to cleaning counts, cleaning times, and flow records. This significantly improves the precision of production management and provides a data foundation for quality traceability and analysis.

[0034] Reference Figure 3 The lens cleaning device of this application is provided with a first air blowing mechanism 21 and a second air blowing mechanism 22 that are opposite each other, and together with the lens tray 10 to support the lens body 30, so as to guide the airflow from top to bottom and from bottom to top to surround the lens body 30 in all directions to clean its optical surface, lens barrel and side wall.

[0035] Specifically, the conveying mechanism is used to perform automated assembly line operations, conveying multiple lens trays 10 arranged sequentially along a predetermined direction to between the first air blowing mechanism 21 and the second air blowing mechanism 22.

[0036] Reference Figure 3A first blowing mechanism 21 moves in a predetermined direction and is positioned above a conveying mechanism (not shown in the figure). The first blowing mechanism 21 has at least one downward-facing first blowing port 211, capable of spraying filtered clean high-pressure gas (such as dry air or nitrogen) downwards. Each first blowing port 211 has at least one downward-facing first suction port 212 beside it, capable of sucking up the blown-up contaminants. A second blowing mechanism 22 moves in a predetermined direction and is positioned below the conveying mechanism, opposite to the first blowing mechanism 21. The second blowing mechanism 22 includes at least one upward-facing second blowing port 221, capable of spraying filtered clean high-pressure gas (such as dry air or nitrogen) upwards. Each second blowing port 221 has at least one upward-facing second suction port 222 beside it, capable of sucking up the blown-up contaminants.

[0037] The first air blowing mechanism 21 and the second air blowing mechanism 22 can reciprocate along a predetermined direction (i.e., the arrangement direction of the lens tray 10) to clean the multiple lens bodies 30 on the lens tray 10 by blowing air. When the two move above one of the lens trays 10, the upward blowing and downward suction airflows act simultaneously on the same column / row of lens bodies 30 on the lens tray 10. The upward airflow cleans the front and upper edge of the lens body 30, while the downward airflow cleans the back, lens barrel, and lower edge of the lens body 30 through the clearance through-holes 112 on the tray. At the same time, the side air outlets 13 of each positioning through-hole 11 become the confluence and discharge channels of the upward and downward airflows, forming a three-dimensional cross airflow field, which significantly enhances the cleaning power.

[0038] Furthermore, the lens cleaning apparatus of this application also includes a pressure plate and a lifting mechanism. The pressure plate is located between the conveying mechanism and the first air blowing mechanism 21 along the height direction. The lifting mechanism is located below the conveying mechanism and includes a drive member and a carrier plate. The drive member is configured to drive the carrier plate to move along the height direction.

[0039] The conveying mechanism stops once the lens tray 10 is positioned precisely between the first air blowing mechanism 21 and the second air blowing mechanism 22. Subsequently, the lifting mechanism's drive unit activates, causing the carrier plate to rise smoothly, lifting one or more lens trays 10 upwards until the lens tray 10 is firmly pressed against the pressure plate above. At this point, the lens body 30 is vertically constrained between the lens tray 10 and the pressure plate, preventing accidental displacement or tipping of the lens tray 10 or lens body 30 under the impact of high-speed airflow.

[0040] In addition, the pressure plate is provided with at least one ventilation hole, and the number and position of the ventilation holes correspond one-to-one with the number and position of the positioning holes 11, so as to ensure that the airflow channel is not affected when the pressure plate is pressed against the lens tray 10.

[0041] Furthermore, the lens tray 10 of this application forms a through-hole structure that runs vertically through the lens body 30 by providing a positioning through-hole 11, an avoidance through-hole 112, and a side air outlet 13 in the area corresponding to the lens body 30. This structure significantly reduces the obstruction of the lens body 30 by the lens tray 10, thereby greatly expanding the application range of the lens tray 10 and making it not limited to air blowing cleaning.

[0042] For example, in the plasma cleaning process, the lens tray 10 can be placed directly in the plasma chamber. The hollow structure ensures that the plasma uniformly coats the entire surface of the lens body 30, achieving efficient and uniform activation and decontamination. In the filter mounting or adhesive curing process, the hollow structure of the lens tray 10 can provide an unobstructed observation path for the vision system below or to the side, supporting high-precision alignment, while providing a pathway for curing energy such as ultraviolet light and hot air, ensuring that the surrounding area is fully cured.

[0043] Therefore, the lens tray of this application is not only an efficient cleaning carrier, but also a universal multi-functional optical component process tray that can be adapted to various processes such as cleaning, testing, coating, mounting, and curing, significantly improving equipment utilization.

[0044] The lens cleaning device of this application utilizes a first and a second air-blowing mechanism that are vertically opposed and synchronously reciprocating to create a directional, strong airflow field on the upper and lower sides of the lens body, simultaneously performing blowing and suction. Furthermore, the device employs a specially designed lens tray to further enhance the cleaning effect. Positioning through-holes on the lens tray precisely guide the airflow, and the air outlet ensures that the airflow fully penetrates the lens gap and surrounds all surfaces of the lens body, including the optical surface, lens barrel, and sidewalls. The coordinated operation of the airflow field and the lens tray achieves comprehensive cleaning of the lens body, significantly enhancing the cleaning intensity and cleanliness.

[0045] The above description is merely a preferred embodiment of this application and is 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. A lens cleaning device, characterized in that, The cleaning device includes: The conveying mechanism carries a plurality of lens trays (10) arranged sequentially along a predetermined direction. Each lens tray (10) carries at least one lens body (30). The lens tray (10) is provided with at least one positioning through hole (11) for positioning the lens body (30). The first blowing mechanism (21) moves along the predetermined direction and is located above the conveying mechanism. The first blowing mechanism (21) is provided with at least one first blowing port (211) with the air port facing downward, and at least one first suction port (212) with the air port facing downward is provided on the side of each first blowing port (211). The second blowing mechanism (22) moves along the predetermined direction and is located below the conveying mechanism and is opposite to the first blowing mechanism (21). The second blowing mechanism (22) includes at least one second blowing port (221) with the air port facing upward, and at least one second suction port (222) with the air port facing upward is provided on the side of each second blowing port (221). The conveying mechanism is configured to move the lens tray (10) between the first air blowing mechanism (21) and the second air blowing mechanism (22), wherein the first air blowing mechanism (21) and the second air blowing mechanism (22) reciprocate along the predetermined direction to blow air to clean the lens body (30).

2. The lens cleaning device according to claim 1, characterized in that, Each of the positioning through holes (11) is surrounded by at least one air outlet (13), which extends through the lens tray (10) in the vertical direction and is laterally connected to the positioning through hole (11).

3. The lens cleaning device according to claim 2, characterized in that, The air outlet (13) is arranged symmetrically along the radial direction of the positioning through hole (11).

4. The lens cleaning device according to claim 2 or 3, characterized in that, The air outlet (13) is a circular through hole, a semi-circular through hole, or an elliptical through hole.

5. The lens cleaning device according to claim 1, characterized in that, Each of the positioning through holes (11) includes a limiting groove (111) and an avoidance through hole (112) that are connected vertically, wherein the size of the limiting groove (111) is larger than the size of the avoidance through hole (112).

6. The lens cleaning device according to claim 5, characterized in that, The periphery of the limiting groove (111) is provided with a relief groove (14), and the relief groove (14) is laterally connected to the limiting groove (111).

7. The lens cleaning device according to claim 1, characterized in that, The upper surface of the lens tray (10) is provided with at least one positioning post (15).

8. The lens cleaning device according to claim 1, characterized in that, The lens tray (10) is provided with a holding part (16) on both sides.

9. The lens cleaning device according to claim 1, characterized in that, The surface of the lens tray (10) is also provided with an identification code (17) containing information about the lens body (30).

10. The lens cleaning device according to claim 1, characterized in that, The lens cleaning device also includes: The pressure plate is located between the conveying mechanism and the first blowing mechanism (21) along the height direction; A lifting mechanism is located below the conveying mechanism. The lifting mechanism includes a drive member and a carrier plate. The drive member is configured to drive the carrier plate to move along the height direction. The conveying mechanism moves the lens tray (10) between the first air blowing mechanism (21) and the second air blowing mechanism (22), and the driving member drives the carrier plate to move upward and moves the lens tray (10) to abut against the pressure plate.

11. The lens cleaning apparatus according to claim 10, characterized in that, The pressure plate is provided with at least one ventilation hole, and the number and position of the ventilation holes correspond one-to-one with the number and position of the positioning holes (11).

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