Coating process of optical glass

Abstract

The invention relates to a coating process of optical glass in the field of optical glass coating. The coating process comprises the following steps: S1, carrying out clamping and restraining treatment on the optical glass to be cleaned by utilizing an adjusting unit and a restraining block; s2, performing targeted surface cleaning operation on the to-be-cleaned optical glass by using a cleaning unit; s3, the cleaned optical glass is subjected to surface drying treatment, and whether water marks exist on the surface of the dried optical glass or not is detected; s4, carrying out film coating treatment on the dried optical glass without water marks on the surface; s5, whether the surface coating reference value of the optical glass after coating treatment reaches the standard or not is detected, and differentiated and targeted cleaning treatment can be conducted on the optical glass of a plane plate-shaped structure or an arc plate-shaped structure or the optical glass with an arc recess and a certain thickness by installing a cleaning unit; therefore, the double-sided cleaning of the optical glass and the expansion of the cleaning range are ensured.

Description

Technical Field

[0001] The present invention relates to an optical glass coating process, in particular to an optical glass coating process applied to the field of optical glass coating. Background Art

[0002] Optical glass is a glass material used to manufacture lenses, prisms, reflectors, windows, etc. of optical instruments or mechanical systems. Coating on the surface of optical glass means using physical or chemical methods to coat the surface of the material with a layer of transparent electrolyte film or a layer of metal film in order to change the reflection and transmission properties of the surface of the material. In the prior art, the coating procedure is generally cleaning - drying - coating - testing, but cleaning is usually single-sided, which limits the operating efficiency.

[0003] In order to solve the problem of limited efficiency caused by single-sided cleaning, a certain coating cleaning device on the market adopts a double-sided cleaning design and has a certain market share.

[0004] The specification of Chinese invention patent CN115285696B discloses a double-sided cleaning line for insulating glass, which can clean both sides of a single glass sheet before the insulating glass is assembled, thereby ensuring the product quality of the insulating glass after assembly.

[0005] The above cleaning device can realize double-sided cleaning during cleaning, but cannot effectively clean optical glasses of different shapes and sizes, so that the use scope of the cleaning device is limited. Summary of the invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to expand the cleaning range on the basis of achieving double-sided cleaning.

[0007] In order to solve the above problems, the present invention provides a coating process for optical glass, comprising the following steps:

[0008] S1. Using an adjustment unit and a restraining block to clamp and restrain the optical glass to be cleaned;

[0009] S2, using a cleaning unit to perform targeted surface cleaning operations on the optical glass to be cleaned;

[0010] S3, drying the surface of the cleaned optical glass, and detecting whether there are water marks on the surface of the optical glass after drying;

[0011] S4, coating the optical glass without water marks on the surface after drying;

[0012] S5. Check whether the coating reference value of the optical glass surface after coating treatment meets the standard;

[0013] The cleaning unit comprises an outer cylinder with a hollow interior, an inner rotating rod is installed inside the outer cylinder, a suspension bracket is installed above the inner rotating rod, a servo motor is installed on the top of the suspension bracket, the output end of the servo motor is connected to the top end of the inner rotating rod, a magnetic rod is slidably connected to the inside of the inner rotating rod, a slot matching the magnetic rod is arranged one by one on the inner wall of the outer cylinder near the top end, an electromagnetic block is installed inside the slot, a plurality of lower bevel gears arranged equidistantly and located below the magnetic rod are sleeved on the surface of the inner rotating rod, a plurality of small electric telescopic rods are installed inside the outer cylinder, an upper bevel gear and an electromagnetic disk located inside the upper bevel gear are sleeved on the surface of one end of the small electric telescopic rod, and the upper bevel gear and the lower bevel gear are meshingly connected, and the other end of the small electric telescopic rod extends to the outside of the outer cylinder and is connected to an outer cleaning cover;

[0014] A liquid storage tank with built-in cleaning liquid is installed on the top of the suspension bracket, and the bottom of the liquid storage tank is connected to multiple branch hoses with solenoid valves installed on the surface through a rotating joint, and the tail end of each branch hose extends to the inner side of the outer cleaning cover.

[0015] In the above-mentioned optical glass coating process, by installing a cleaning unit, differentiated and targeted cleaning treatments can be performed on the optical glass with a flat plate structure, an arc-shaped plate structure, or an optical glass with an arc-shaped depression and a certain thickness, thereby ensuring the double-sided cleaning of the optical glass and the expansion of the cleaning range of the present invention.

[0016] As a further improvement of the present application, a magnetic block is installed inside the upper bevel gear, and there is a magnetic attraction between the magnetic block and the electromagnetic disk. An annular groove is provided on the surface of the electromagnetic disk, and a spring is slidably connected inside the annular groove, and the tail end of the spring is connected to the surface of the upper bevel gear.

[0017] As a further improvement of the present application, the outer cleaning cover is composed of an inner and outer double-layer structure, the outer layer is an elastic sponge layer, the inner layer is a waterproof silicone layer, one end of the outer cleaning cover is designed as a spherical ball, and the cross-section of the outer cleaning cover is conical.

[0018] As a further improvement of the present application, a plurality of small electric telescopic rods are electrically connected to each other, and the electromagnetic block and the electromagnetic disk are electrically connected to each other.

[0019] As a further improvement of the present application, the elastic sponge layer of the outer cleaning cover near one end of the outer cylinder surface is in close contact with the outer cylinder surface, and the inner diameter value of the outer cleaning cover near one end of the outer cylinder surface is the same as the gap value between two adjacent outer cleaning covers in the vertical direction.

[0020] As a further improvement of the present application, an adjustment unit is installed between the two cleaning units, a constraint block is slidably fitted on the top surface of the adjustment unit, a constraint screw is installed through the inside of the constraint block, and a rubber pad is laid on the bottom wall of the constraint block.

[0021] As another improvement of the present application, a rotating rod is fixedly connected to the bottom of the constraint block, a through groove is provided inside the adjustment unit, and a symmetrically arranged movable constraint plate is installed inside the through groove through an axial rod, and a plurality of constraint grooves with the same diameter as the rotating rod and anti-slip grooves on the inner wall are provided inside the movable constraint plate.

[0022] As another improvement supplement of the present application, the shaft rod is connected to the inner wall of the through groove through a damping shaft and the end of the shaft rod extends to the outside of one end of the adjustment unit, and the horizontal distance between the two movable constraint plates in the vertical state is greater than the diameter value of the rotating rod.

[0023] To summarize, the present invention is equipped with an adjustment unit and a cleaning unit to start the magnetic attraction mode of the electromagnetic block, so that the magnetic rod is inserted into the slot, and driven by the servo motor, the outer cylinder and the outer cleaning cover on its surface can perform double-sided rolling cleaning on the flat plate-shaped optical glass. In addition, when the electromagnetic block is in the magnetic attraction mode, by adjusting the extension distance of each small electric telescopic rod in the vertical direction or by adjusting the clamping direction of the constraint block to avoid inconsistent extension distances of each small electric telescopic rod in the vertical direction, double-sided cleaning of the arc-shaped plate-shaped optical glass can be achieved. In addition, when the electromagnetic block starts the magnetic repulsion mode, the connection between the outer cylinder and the inner rotating rod is cut off, so that the inner rotating rod can drive the outer cleaning cover to rotate with the cooperation of the upper bevel gear and the lower bevel gear, so as to effectively clean the optical glass with a certain thickness and an arc-shaped depression on one of its surfaces, thereby achieving the differentiated double-sided cleaning purpose of the present invention and expanding the cleaning scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a process flow chart of Example 1 of the present application;

[0025] Figure 2 This is a schematic diagram of the overall structure of Embodiment 1 of the present application;

[0026] Figure 3 This is a schematic diagram of the interior of the outer cylinder of Example 1 of the present application;

[0027] Figure 4 For the first embodiment of this application Figure 3 A is an enlarged schematic diagram;

[0028] Figure 5 This is a schematic diagram of the installation of the outer cylinder, small electric telescopic rod and outer cleaning cover of Example 1 of the present application;

[0029] Figure 6 For the first embodiment of this application Figure 5 The enlarged schematic diagram of point B in FIG.

[0030] Figure 7This is a diagram of the upper bevel gear and the lower bevel gear of the first embodiment of the present application being separated;

[0031] Figure 8 This is a schematic diagram of a state in which each small electric telescopic rod has a different extension distance value in the vertical direction according to the first embodiment of the present application;

[0032] Fig. 9 This is a schematic diagram of the rotation cleaning state of the outer cleaning cover when the upper bevel gear and the lower bevel gear are meshed in the first embodiment of the present application;

[0033] Fig.10 This is a schematic diagram of the installation of the adjustment unit and the constraint block of the second embodiment of the present application;

[0034] Fig.11 This is a schematic diagram of the state of the restraining block of the second embodiment of the present application moving laterally in the through groove;

[0035] Fig.12 This is a schematic diagram of the state in which the restraining block of the second embodiment of the present application rotates in the through slot;

[0036] Fig.13 This is a state diagram of the constraint block of the second embodiment of the present application clamping the curved plate-shaped optical glass.

[0037] Description of the numbers in the figure:

[0038] 1. Suspension bracket; 2. Cleaning unit; 21. Outer cylinder; 22. Inner rotating rod; 23. Outer cleaning cover; 24. Slot; 25. Magnetic rod; 26. Small electric telescopic rod; 27. Upper bevel gear; 28. Lower bevel gear; 29. ​​Electromagnetic disk; 3. Servo motor; 4. Adjustment unit; 41. Movable restraining plate; 42. Restraining groove; 5. Restraining block; 51. Restraining screw; 52. Rubber pad; 53. Rotating rod. DETAILED DESCRIPTION

[0039] Two embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0040] The first implementation method:

[0041] Figure 1 A coating process for optical glass is shown, comprising the following steps:

[0042] S1, using the adjustment unit 4 and the restraining block 5 to clamp and restrain the optical glass to be cleaned;

[0043] S2, using the cleaning unit 2 to perform targeted cleaning operations on the surface of the optical glass to be cleaned;

[0044] S3, drying the surface of the cleaned optical glass, and detecting whether there are water marks on the surface of the optical glass after drying;

[0045] S4, coating the optical glass without water marks on the surface after drying;

[0046] S5. Check whether the coating reference value of the optical glass surface after coating treatment meets the standard;

[0047] Figure 2-Figure 10 The cleaning unit 2 is shown to include an outer cylinder 21 with a hollow interior, an inner rotating rod 22 is installed inside the outer cylinder 21, a suspension bracket 1 is installed above the inner rotating rod 22, a servo motor 3 is installed on the top of the suspension bracket 1, the output end of the servo motor 3 is connected to the top of the inner rotating rod 22, a magnetic rod 25 is slidably connected to the inside of the inner rotating rod 22, a slot 24 matching the magnetic rod 25 is provided near the top of the inner wall of the outer cylinder 21, an electromagnetic block is installed inside the slot 24, a plurality of lower bevel gears 28 arranged equidistantly and located below the magnetic rod 25 are sleeved on the surface of the inner rotating rod 22, and the outer cylinder 21 is provided with a plurality of lower bevel gears 28 arranged equidistantly and located below the magnetic rod 25. A plurality of small electric telescopic rods 26 are installed through the interior thereof, an upper bevel gear 27 and an electromagnetic disk 29 located on the inner side of the upper bevel gear 27 are sleeved on the surface of one end of the small electric telescopic rod 26, and the upper bevel gear 27 and the lower bevel gear 28 are meshingly connected, the other end of the small electric telescopic rod 26 extends to the outside of the outer cylinder 21 and is connected to an outer cleaning cover 23, a liquid storage tank with a built-in cleaning liquid is installed on the top of the suspension bracket 1, and a plurality of branch hoses with solenoid valves installed on the surface are connected to the bottom of the liquid storage tank through a rotating joint, and the tail end of each branch hose extends to the inner side of the outer cleaning cover 23.

[0048] A magnetic block is installed inside the upper bevel gear 27, and there is a magnetic attraction between the magnetic block and the electromagnetic disk 29. The surface of the electromagnetic disk 29 is provided with an annular groove, and a spring is slidably connected inside the annular groove, and the tail end of the spring is connected to the surface of the upper bevel gear 27.

[0049] The outer cleaning cover 23 is composed of an inner and outer double-layer structure, the outer layer is an elastic sponge layer, and the inner layer is a waterproof silicone layer. One end of the outer cleaning cover 23 is designed as a spherical ball, and the cross-section of the outer cleaning cover 23 is conical.

[0050] The plurality of small electric telescopic rods 26 are electrically connected to each other, and the electromagnetic block and the electromagnetic disk 29 are electrically connected to each other.

[0051] Specifically, when cleaning the surface of the curved optical glass plate, the small electric telescopic rod 26 is gradually started from top to bottom, so that the extension length of the small electric telescopic rod 26 is sequentially increased or shortened in the vertical direction, so that it can better fit the surface of the curved optical glass;

[0052] The inner tip of the outer cleaning cover 23 is connected to the end of the small electric telescopic rod 26, and the other parts are in contact with the surface of the small electric telescopic rod 26;

[0053] In addition, the electromagnetic block has two working modes, one is a magnetic repulsion mode between the electromagnetic rod 25, and the other is a magnetic attraction mode between the electromagnetic rod 25. When the magnetic repulsion mode is started, the magnetic rod 25 retracts into the gap between the outer cylinder 21 and the inner rotating rod 22. At this time, the outer cylinder 21 no longer rotates with the inner rotating rod 22. At the same time, the electromagnetic disk 29 is started to produce a magnetic attraction effect so that the upper bevel gear 27 is close to the electromagnetic disk 29 and meshes with the lower bevel gear 28. With the rotation of the inner rotating rod 22, the upper bevel gear 27 can be driven to rotate, and then the outer cleaning cover 23 can be driven to rotate. At the same time, a plurality of optical glasswares with certain arc-shaped depressions and thickness in a display constraint state are cleaned (because the optical glass has a certain thickness and the other surface without depressions is relatively flat, another cleaning unit 2 can be used to clean the surface of the optical glass in a flat plate shape or an arc-shaped plate shape. During the cleaning process, the length of the small electric telescopic rod 26 can be adjusted according to the degree of depression to adapt to the cleaning);

[0054] When the electromagnetic disk 29 is not started, the upper bevel gear 27 and the lower bevel gear 28 are separated by the action of the spring, and the electromagnetic block is in the magnetic attraction mode, so that the magnetic rod 25 is moved to the slot 24 by the magnetic attraction, so that the inner rotating rod 22 can drive the outer cylinder 21 to rotate synchronously when rotating, and drive the outer cleaning cover 23 on the surface to rotate, so as to clean the flat plate-shaped optical glass in the middle of the cleaning unit 2.

[0055] After the outer cleaning cover 23 attached to the glass surface leaves the surface of the glass, the small electric telescopic rod 26 is started to drive the outer cleaning cover 23 to retract. During this process, the outer cleaning cover 23 with cleaning liquid inside is squeezed and the dirty water inside is squeezed out. After that, the small electric telescopic rod 26 is extended and reset, and then the solenoid valve is opened to replenish the cleaning liquid to the outer cleaning cover 23 after the dirty water is squeezed out, so as to continue cleaning later. In this way, the outer cleaning cover 23 can effectively clean the glass surface.

[0056] The elastic sponge layer at one end of the outer cleaning cover 23 close to the surface of the outer cylinder 21 is in close contact with the surface of the outer cylinder 21, and the inner diameter value of the outer cleaning cover 23 close to the surface of the outer cylinder 21 is the same as the gap value between two adjacent outer cleaning covers 23 in the vertical direction.

[0057] Specifically, when the outer cylinder 21 rotates, the elastic sponge soaked with cleaning liquid on the inside of the surface is subjected to the centrifugal force and thus breaks away from the original bonding state with the surface of the outer cylinder 21, and accumulates to form a round cake-shaped structure that fits the surface of the glass. Since the maximum diameter of the outer cleaning cover 23 is the same as the vertical distance between the two outer cleaning covers 23, in the vertical direction, there is no cleaning gap between the outer cleaning covers 23 that were originally in a conical design, and the arc-shaped plate-shaped optical glass surface located between the two cleaning units 2 can be fully cleaned.

[0058] An adjustment unit 4 is installed between the two cleaning units 2 , a constraint block 5 is slidably fitted on the top surface of the adjustment unit 4 , a constraint screw 51 is installed through the inside of the constraint block 5 , and a rubber pad 52 is laid on the bottom wall of the constraint block 5 .

[0059] Specifically, when the optical glass needs to be clamped and constrained, the optical glass is stuffed into the gap in the constraint block 5, and then the constraint screw 51 is rotated to clamp the surface of the optical glass stuffed in the gap, and the rubber pad 52 is used to achieve flexible support for the load-bearing bottom surface of the optical glass to protect the optical glass. The clamped and constrained optical glass is then moved along the surface of the adjustment unit 4 to achieve corresponding double-sided targeted cleaning.

[0060] In summary, by installing the cleaning unit 2, differentiated and targeted cleaning treatments can be performed on optical glass with a flat plate structure, an arc-shaped plate structure, or optical glass with an arc-shaped depression and a certain thickness, thereby ensuring the expansion of the double-sided cleaning of the optical glass and the cleaning range of the present invention.

[0061] The second implementation method:

[0062] Figure 10-13 It is shown that a rotating rod 53 is fixedly connected to the bottom of the constraint block 5, a through groove is provided inside the adjustment unit 4, and a symmetrically arranged movable constraint plate 41 is installed inside the through groove through an axial rod, and a plurality of constraint grooves 42 with the same diameter as the rotating rod 53 and anti-slip grooves on the inner wall are provided inside the movable constraint plate 41.

[0063] The shaft is connected to the inner wall of the through slot via a damping shaft and the end of the shaft extends to the outside of one end of the adjustment unit 4 . The horizontal distance between the two movable restraining plates 41 in the vertical state is greater than the diameter of the rotating rod 53 .

[0064] Specifically, when clamping the curved plate-shaped optical glass, it is necessary to first rotate the movable constraint plate 41 by 90 degrees so that it can be placed vertically, and then adjust the distance between the two constraint blocks 5 in the through groove according to the horizontal span of the optical glass, and rotate the rotating rod 53 appropriately according to the value of the curvature of the optical glass surface, so that the gap in the constraint block 5 can be better fitted to the surface of the optical glass, and then rotate the constraint screw 51 until the optical glass is clamped, and then reset the movable constraint plate 41 so that the constraint groove 42 at the corresponding position can be sleeved on the surface of the rotating rod 53 to play a corresponding constraint and limit effect on the rotating rod 53;

[0065] In this way, when cleaning the curved plate-shaped optical glass, the small electric telescopic rod 26 in the vertical direction can be synchronously extended and retracted, thereby expanding the cleaning range of the present invention.

[0066] In view of current practical needs, the protection scope of the above-mentioned embodiments adopted in this application is not limited thereto. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A coating process for optical glass, characterized in that: The following steps are included: S1, using the adjustment unit (4) and the restraining block (5) to clamp and restrain the optical glass to be cleaned; S2, using the cleaning unit (2) to perform targeted cleaning operations on the surface of the optical glass to be cleaned; S3, drying the surface of the cleaned optical glass, and detecting whether there are water marks on the surface of the optical glass after drying; S4, coating the optical glass without water marks on the surface after drying; S5. Check whether the coating reference value of the optical glass surface after coating treatment meets the standard; The cleaning unit (2) comprises an outer cylinder (21) with a hollow interior, an inner rotating rod (22) is installed inside the outer cylinder (21), a suspension bracket (1) is installed above the inner rotating rod (22), a servo motor (3) is installed on the top of the suspension bracket (1), the output end of the servo motor (3) is connected to the top end of the inner rotating rod (22), a magnetic rod (25) is slidably connected to the inside of the inner rotating rod (22), a slot (24) matching the magnetic rod (25) is provided at a position near the top end of the inner wall of the outer cylinder (21), and a magnetic rod (25) is installed inside the slot (24). An electromagnetic block is provided, the surface of the inner rotating rod (22) is sleeved with a plurality of lower bevel gears (28) which are arranged at equal intervals and are located below the magnetic rod (25), a plurality of small electric telescopic rods (26) are installed through the interior of the outer cylinder (21), an upper bevel gear (27) and an electromagnetic disk (29) located inside the upper bevel gear (27) are sleeved on one end surface of the small electric telescopic rod (26), and the upper bevel gear (27) and the lower bevel gear (28) are meshingly connected, and the other end of the small electric telescopic rod (26) extends to the outside of the outer cylinder (21) and is connected to an outer cleaning cover (23); A liquid storage tank containing a built-in cleaning liquid is installed on the top of the suspension bracket (1), and a plurality of branch hoses with electromagnetic valves installed on the surface are connected to the bottom of the liquid storage tank via a rotating joint, and the tail end of each branch hose extends to the inner side of the outer cleaning cover (23).

2. The optical glass coating process according to claim 1, characterized in that: A magnetic block is installed inside the upper bevel gear (27), and there is a magnetic attraction between the magnetic block and the electromagnetic disk (29). An annular groove is provided on the surface of the electromagnetic disk (29), and a spring is slidably connected inside the annular groove, and the tail end of the spring is connected to the surface of the upper bevel gear (27).

3. The optical glass coating process according to claim 1, characterized in that: The outer cleaning cover (23) is composed of an inner and outer double-layer structure, the outer layer is an elastic sponge layer, and the inner layer is a waterproof silica gel layer. One end of the outer cleaning cover (23) is designed as a spherical ball, and the cross section of the outer cleaning cover (23) is conical.

4. The optical glass coating process according to claim 1, characterized in that: The plurality of small electric telescopic rods (26) are electrically connected to each other, and the electromagnetic block and the electromagnetic disk (29) are electrically connected to each other.

5. The optical glass coating process according to claim 3, characterized in that: The elastic sponge layer at one end of the outer cleaning cover (23) close to the surface of the outer cylinder (21) is in close contact with the surface of the outer cylinder (21), and the inner diameter value of the end of the outer cleaning cover (23) close to the surface of the outer cylinder (21) is the same as the gap value between two adjacent outer cleaning covers (23) in the vertical direction.

6. The optical glass coating process according to claim 1, characterized in that: An adjustment unit (4) is installed between the two cleaning units (2), a restraining block (5) is slidably fitted on the top surface of the adjustment unit (4), a restraining screw (51) is installed through the interior of the restraining block (5), and a rubber pad (52) is laid on the bottom wall of the restraining block (5).

7. The optical glass coating process according to claim 6, characterized in that: The bottom of the restraining block (5) is fixedly connected to a rotating rod (53), the interior of the adjusting unit (4) is provided with a through groove, the interior of the through groove is provided with a symmetrically arranged movable restraining plate (41) via an axle rod, and the interior of the movable restraining plate (41) is provided with a plurality of restraining grooves (42) having the same diameter as the rotating rod (53) and having anti-slip grooves on the inner wall.

8. The optical glass coating process according to claim 7, characterized in that: The shaft is connected to the inner wall of the through slot via a damping shaft and the end of the shaft extends to the outside of one end of the adjustment unit (4). The horizontal distance between the two movable restraining plates (41) in a vertical state is greater than the diameter of the rotating rod (53).

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