Fixing jig for ultra-thin tiny lens screen printing processing

Abstract

The utility model discloses a fixing jig for screen printing processing of an ultrathin tiny lens, the fixing jig is detachably connected with the lens in a positioning mode, the surface of the side, to be subjected to screen printing processing, of the lens is exposed, and the fixing jig further comprises an adsorption mechanism for driving the lens to be subjected to screen printing processing to be separated from a screen printing processing device after screen printing processing. According to the fixing jig, the placing groove matched with the ultrathin tiny lens is formed in the fixing block, so that the lens can be placed simply and conveniently, positioning is accurate, and the problem of lens displacement can be solved during screen printing machining. The operation grooves are formed in the two sides of the containing groove, the two ends of the lens are exposed, and therefore the lens can be smoothly taken out after silk-screen machining is completed, and the problem that at present, the lens is difficult to be smoothly taken out due to the fact that a universal jig is used for the ultra-thin tiny lens is solved. And through the adsorption acting force on the lens, the lens can be smoothly separated from the silk screen, so that the problem that the existing ultrathin tiny lens is light and small, so that the ultrathin tiny lens is easily adhered to the silk screen and is difficult to take off is solved.

Description

Technical Field

[0001] The present application relates to the technical field of screen printing processing of ultra-thin micro lenses, and in particular to a fixing fixture for screen printing processing of ultra-thin micro lenses. Background Art

[0002] In order to avoid and eliminate the influence of stray light on optical imaging in optical systems and improve the clarity of imaging, a common method is to evenly paint the optical components in the system with black paint. Silk screen printing, as one of the commonly used surface blackening treatment methods, is a technology that prints specific patterns or text on the surface of the lens. The silk screen printing process for blackening lenses is based on the principle of screen printing. This technology uses a silk screen plate as a printing medium to print ink on the lens surface. The ink is firmly adhered to the lens through high-temperature baking, forming a clear and lasting pattern or text.

[0003] Currently, when screen printing ultra-thin micro lenses, due to their small overall specifications and thin thickness, they are easily displaced when fixed on a universal jig, resulting in errors in the screen printing position and size, and thus making it impossible to smoothly fix them on the universal jig for screen printing. In addition, after screen printing, the ultra-thin micro lenses are very easy to stick to the screen printing mesh due to their light weight. After screen printing, they are difficult to remove from the jig smoothly and quickly, resulting in certain difficulties in screen printing the lenses, a high scrap rate, low processing efficiency, and increased processing costs. Summary of the Invention

[0004] In response to the above-mentioned problems, the present application aims to provide a fixing jig for screen printing processing of ultra-thin micro lenses, which makes the placement operation of the lenses simple and convenient, and the positioning is precise. It can solve the problem of lens displacement during screen printing processing, and facilitate the smooth removal of the lenses after the screen printing processing is completed, and solve the current problem that ultra-thin micro lenses are easy to stick to the screen printing network due to their light weight and small size.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is as follows: a fixing jig for screen printing processing of ultra-thin micro lenses, characterized in that: the fixing jig is detachably connected to the lens, and the surface of the lens to be screen-printed is exposed, and the fixing jig also includes an adsorption mechanism that drives the lens to be separated from the screen printing device after screen printing.

[0006] Preferably, the fixing fixture comprises a fixing block, on which a placement groove adapted for embedding the lens is provided, and the depth of the placement groove is less than the thickness of the lens.

[0007] Preferably, operating grooves penetrating the placement groove are symmetrically provided on the fixing blocks located on both sides of the placement groove.

[0008] Preferably, the adsorption mechanism is a vacuum suction hole provided on the bottom surface of the placement groove for adsorbing and attaching the lens to the placement groove.

[0009] The beneficial effect of the present application is that the fixing fixture provides a placement groove adapted to the ultra-thin tiny lens in the fixing block, so that the placement operation of the lens is simple and convenient, and the positioning is precise, which can solve the problem of lens displacement during silk screen processing.

[0010] By opening operating grooves on both sides of the placement groove, the two ends of the lens are exposed, making it easier to remove the lens after the silk-screen processing is completed, solving the problem that it is difficult to remove ultra-thin tiny lenses smoothly using general fixtures.

[0011] By opening vacuum suction holes on the fixed block and using a vacuum pump, the lens can be adsorbed in the placement groove during silk-screen processing, further improving the stability of the lens placement. At the same time, after silk-screen printing is completed, the adsorption force can smoothly separate the lens from the silk-screen mesh, solving the current problem of ultra-thin and tiny lenses being easily adhered to the silk-screen mesh due to their lightness and smallness, making them difficult to remove. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a diagram of the planar structure of the fixed block of this application.

[0013] Figure 2 This is a diagram illustrating the process of positioning and embedding the ultra-thin micro lens in the placement groove of the fixed block and removing the ultra-thin micro lens after silk screen processing.

[0014] Figure 3 This is a diagram showing a structure in which a vacuum hole is opened in the placement groove of the fixed block for this application.

[0015] Figure 4 This is a planar structural diagram of the clamping block used to clamp the fixed block in this application.

[0016] Figure 5 This is a diagram showing the assembly of the fixing block and the clamping block and the adsorption of the placed ultra-thin micro lens.

[0017] Figure 6 For this application Figure 5 After the silk-screen processing is completed, the ultra-thin tiny lens will be removed.

[0018] In the figure: 2-clamping block; 2a-L-shaped perforation; 3-ultra-thin micro lens. DETAILED DESCRIPTION

[0019] In order to enable ordinary technicians in this field to better understand the technical solution of the present application, the technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Refer to the attached Figures 1 to 6 The illustrated fixture for screen printing of ultra-thin micro-lenses is removably connected to the lens and exposes the side of the lens to be screen-printed. This fixture allows for targeted support and fastening of ultra-thin micro-lenses. Furthermore, even with thin lenses, the surface to be screen-printed is exposed, allowing smooth screen printing operations. This solves the problem of processing displacement caused by the inability of current general-purpose fixtures to adapt to ultra-thin micro-lenses.

[0021] In order to solve the problem that the ultra-thin micro lenses stick to the screen after the screen printing process and are difficult to remove smoothly, Figure 3 As shown, the fixture also includes a suction mechanism that drives the lens to separate from the screen printing device after screen printing. This suction mechanism adsorbs the lens to the fixture after screen printing is completed, so that when the screen printing screen is driven off the fixture, the lens is simultaneously and smoothly separated. This solves the problem of ultra-thin micro lenses being stuck to the screen printing screen and difficult to remove. This allows for smooth clamping and removal of ultra-thin micro lenses after screen printing, improving the quality and efficiency of screen printing processing of ultra-thin micro lenses.

[0022] Specifically, such as Figure 1-2 As shown, the fixing jig includes a fixing block 1, on which a placement groove 1a for fitting the lens is provided (the fixing block 1 can preferably be an aluminum block, on which a placement groove 1a of the same size as the tiny ultra-thin lens is processed by CNC technology), and the depth of the placement groove 1a is less than the thickness of the lens. The placement groove 1a adapted to the lens can be used to position the ultra-thin tiny lens immediately after placement, solving the problem that it is difficult to position the lens with a general jig and that the lens is easily displaced during the silk-screen printing process. At the same time, the depth of the placement groove 1a is less than the thickness of the lens, that is, the surface of the lens that needs to be silk-screened is higher than the surface of the fixing block 1, thereby avoiding the problem of incomplete silk-screening caused by the silk-screen screen contacting the surface of the fixing block 1 and separating from the lens surface during the silk-screen printing process.

[0023] In order to facilitate the smooth removal of the lens from the fixing block 1 (placement groove 1a) after the silk screen printing process is completed, Figure 1-2 As shown, the fixing blocks 1 on both sides of the placement groove 1a are symmetrically provided with operation grooves 1b that penetrate the placement groove 1a. Figure 2 As shown, the operator can hold the lens in the operating grooves 1b on both sides, and the two ends of the lens extend into the operating grooves 1b, so that the operator can directly contact the two ends of the lens in the operating grooves 1b ( Figure 2 The ultra-thin micro lens can be smoothly removed from the placement groove 1a.

[0024] In order to solve the problem that the ultra-thin micro lenses are light in weight and stick to the screen and are difficult to remove, Figure 3 As shown, the adsorption mechanism is a vacuum suction hole 1c opened on the bottom surface of the placement groove 1a for adsorbing and adhering the lens to the placement groove 1a. The vacuum suction hole 1c is preferably connected to a vacuum pump (not shown in the figure). When the screen printing process is performed, after the lens is placed in the placement groove 1a of the fixed block 1, it is extracted by the vacuum pump to achieve adsorption of the lens in the placement groove 1b, which can further improve the stability of the lens during the screen printing process; at the same time, after the screen printing process is completed, in the process of separating the screen printing screen from the fixed block 1, the lens is adsorbed in the placement groove 1a, and the lens and the screen printing screen can be smoothly separated. Then, the vacuum pump is turned off, and the lens that has been screen-printed can be smoothly removed from the fixed block 1 through the operating groove 1b, and the next lens can be continuously screen-printed.

[0025] In order to adapt to the screen printing processing of ultra-thin micro lenses of different specifications, such as Figure 4 As shown, a rear clamping block 2 is also assembled at the bottom of the fixed block 1. The clamping block can preferably be fixed to the bottom side of the silk screen of the silk screen printing equipment (a porous structure is provided on the clamping block to facilitate its clamping with the silk screen printing equipment). By detachably clamping the fixed block 1 (such as bolt connection) on the clamping block, the fixed block 1 with placement slots 1a of different specifications can be replaced to adapt to the silk screen processing operation of ultra-thin lenses of different specifications. An L-shaped through-hole 2a can be opened in the clamping block. The top end of the L-shaped through-hole is connected to the vacuum suction hole 1c of the fixed block 1, and the side end is passed through the side wall of the clamping block to facilitate the connection of the vacuum tube. Therefore, the clamping block can be used to replace the fixed block 1 with placement slots 1a of different specifications, realize the silk screen processing operation of ultra-thin lenses of different specifications, and improve the applicability of the fixing fixture.

[0026] The principle of this application is: according to the specifications of the ultra-thin tiny lens, a placement groove 1a with the same specifications as the lens is opened on the fixing block 1, and the depth of the placement groove 1a is less than the thickness of the adapted lens. At the same time, operating grooves 1b that pass through the placement groove 1a are opened on both sides of the placement groove 1a, and vacuum suction holes 1c are opened in the placement groove 1a. At the same time, a clamping block clamped with the fixing block 1 is also provided, and an L-shaped through-hole is opened on the clamping block.

[0027] When performing the silk-screen processing operation of ultra-thin tiny lenses, the clamping block is fixed to the bottom side of the silk-screen screen of the silk-screen printing equipment. According to the specifications of the current silk-screened lens, the fixing block 1 that is suitable for the placement groove 1a is selected and clamped on the clamping block. Then the lens to be silk-screened is embedded in the placement groove 1a. At the same time, the lens is adsorbed in the placement groove 1a through a vacuum pump connected to the L-shaped perforation and connected to the vacuum suction hole 1c, and then the silk-screen screen is lowered and attached to the lens surface for silk-screen printing. When the silk-screen printing is completed and the silk-screen screen is lifted, the vacuum pump adsorbs the lens so that the lens and the silk-screen screen are smoothly separated. After separation, the vacuum pump is turned off to release the adsorption effect on the lens. The operating grooves 1b on both sides of the fixing block 1 can be contacted with both ends of the lens, so that the lens after silk-screen printing is smoothly removed from the fixing block 1, and then the lens is put in again for silk-screen processing of the next lens.

[0028] When the specifications of the lens are changed, the fixing block 1 adapted to the placement groove 1a is clamped, and the same silk-screen processing operation is performed on the lenses of different specifications in the same silk-screen processing method.

[0029] The above shows and describes the basic principles, main features and advantages of this application. Without departing from the spirit and scope of this application, this application will also have various changes and improvements, which fall within the scope of this application.

Claims

1. A fixture for screen printing of ultra-thin micro lenses, characterized by: The fixing fixture is detachably connected to the lens and exposes the surface of the lens to be screen-printed. The fixing fixture also includes an adsorption mechanism that drives the lens to separate from the screen-printing device after screen-printing.

2. The fixing fixture according to claim 1, characterized in that: The fixing jig comprises a fixing block (1), on which a placement groove (1a) adapted for embedding a lens is provided, and the depth of the placement groove (1a) is less than the thickness of the lens.

3. The fixing fixture according to claim 2, characterized in that: Operating grooves (1b) that penetrate the placement groove (1a) are symmetrically provided on the fixing blocks (1) located on both sides of the placement groove (1a).

4. The fixing fixture according to claim 3, characterized in that: The adsorption mechanism is a vacuum suction hole (1c) provided on the bottom surface of the placement groove (1a) for adsorbing and attaching the lens to the placement groove (1a).

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