Photochromic lens processing equipment

Abstract

The invention discloses photochromic lens processing equipment, which comprises a spraying support, a plurality of lens supporting grooves, a plurality of lenses, a plurality of lenses, a plurality of lenses, a plurality of lenses, a plurality of lenses, a plurality of lenses, a plurality of lenses, a plurality of lenses, a plurality of lenses, a plurality of lenses and a plurality of lenses, the illumination disc is installed on the upper side of the spraying support and corresponds to the spraying support, and the illumination disc is provided with a plurality of light source emitters corresponding to the lens supporting grooves; and the spraying mechanical arm is used for spraying color-changing powder paint on the lens on the lens supporting groove. The spraying support bears the lens, the spraying mechanical arm electrostatically sprays the color-changing powder coating, so that the color-changing film layer is more uniform, meanwhile, the illumination disc is used for infrared curing at the upper end, stress is reduced, the film layer forming efficiency is improved, and in addition, non-uniform casting of the color-changing powder coating can be avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of lenses, and in particular relates to a photochromic lens processing device. Background Art

[0002] Photochromic glasses, also known as sunshades. In life, there are too many light sources that produce harmful light, especially sunlight; the light emitted from sunlight includes: visible light, infrared light, ultraviolet light, etc. People usually have to adjust the size of their pupils to adjust the light flux in the sun. When the light intensity exceeds the adjustment ability of the human eye, it will cause damage to the human eye. Sunglasses can effectively filter out part of the light, prevent our eyes from being burned by strong light, and block ultraviolet rays from damaging the cornea and retina.

[0003] At present, part of the market is dyed sun lenses. This type of lens mainly dyes the absorption of light by particles. The most common process is to soak the resin lens in a liquid containing a dye, heat the liquid, and the molecular gaps on the heated surface of the resin lens expand. The dye particles dissolved in the liquid enter the molecular gaps, and the dyeing is completed after cooling. The dyeing layer on the surface of the lens will absorb different wavelengths of light according to different dye particles. The darker the dyeing, the more dye particles enter the lens, the better the absorption of light. However, this color change effect is weak, and with the passage of time and the gradual increase of light, the color will fade easily.

[0004] At the same time, there are some photochromic lenses on the market that use film layer color change. The main process is to make a layer of photochromic film of about 150μm on the front surface of the normal colorless and transparent substrate. In comparison, the color change depth, fading speed, and color change uniformity of film-changing lenses are better than those of substrates. At the same time, film-changing lenses can be matched with any substrate and are not limited to substrate materials like base-changing lenses. This type of photochromic lens can be used as both sunglasses and normal transparent lenses. However, the current coating is operated in a vacuum coating machine, the film layer has poor adhesion, and the surface of the film layer cannot be controlled to be uniform, which affects the color change effect and makes it uncomfortable to wear.

[0005] Therefore, a new type of photochromic lens processing equipment is in urgent need of research. Summary of the invention

[0006] In view of this, the technical problem to be solved by the present invention is to provide a photochromic lens processing device to avoid the problem that the photochromic lens film layer is uneven and affects the color change effect.

[0007] In order to solve the above technical problems, the present invention discloses a photochromic lens processing device, which comprises: The spraying bracket is in the shape of a disk with the center arched upward, and has a plurality of lens supporting grooves on the surface, and the lens supporting grooves are in the shape of countersunk holes; An illumination disk, which is mounted on the upper side of the spraying bracket and corresponds to each other, and has a plurality of light source emitters corresponding to the lens support grooves; The spraying robot arm is used to spray color-changing powder coating on the lens on the lens support groove.

[0008] According to one embodiment of the present invention, the above-mentioned spraying robot arm includes an electrostatic spray gun, a lift, a powder supply barrel, and a filter screen; the electrostatic spray gun adopts the principle of high voltage generation, and the color-changing powder coating enters the electrostatic spray gun from the powder supply system with the help of compressed air gas. A high voltage generated by a high-voltage electrostatic generator is added to the front end of the electrostatic spray gun. Due to corona discharge, dense electric charges are generated near it. When the powder is sprayed from the gun nozzle, charged coating particles are formed. Under the action of electrostatic force, it is sucked onto the lens with the opposite polarity. As the amount of powder sprayed increases, the charge accumulates more. When the thickness reaches 150-200μm, it will not continue to be adsorbed due to the electrostatic repulsion.

[0009] According to one embodiment of the present invention, the center of the spraying bracket is supported by an adjusting shaft, and a paint surrounding groove is arranged around it.

[0010] According to one embodiment of the present invention, the light source emitter is configured as infrared light.

[0011] According to an embodiment of the present invention, the irradiation disk is driven by a lifting mechanism to move closer to or away from the spraying support.

[0012] According to an embodiment of the present invention, an arc-shaped notch extends from one end of the lens supporting groove.

[0013] Compared with the prior art, the present invention can achieve the following technical effects: The lens is carried by the spray bracket, and the spray robot arm electrostatically sprays the color-changing powder coating, making the color-changing film layer more uniform. At the same time, the upper end is infrared cured by the light disk to reduce stress, improve the film forming efficiency, and also avoid uneven casting of the color-changing powder coating.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 Schematic diagram of a photochromic lens processing device according to an embodiment of the present invention. Figure ID

[0016] Spraying bracket 10, lens supporting groove 20, illumination disk 30, spraying mechanical arm 40, paint surrounding groove 50. DETAILED DESCRIPTION

[0017] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0018] Please refer to Figure 1 , Figure 1 Schematic diagram of a photochromic lens processing device according to an embodiment of the present invention.

[0019] As shown in the figure, a photochromic lens processing equipment includes: a spraying bracket 10, the spraying bracket 10 is in the shape of a circular disc with the center arched upward, and has a plurality of lens supporting grooves 20 on the surface, and the lens supporting grooves 20 are in the shape of countersunk holes; an illumination disk 30, the illumination disk 30 is installed on the upper side of the spraying bracket 10 and corresponds to each other, and the illumination disk 30 has a plurality of light source emitters corresponding to the lens supporting grooves 20; a spraying robot arm 40, the spraying robot arm 40 is used to spray color-changing powder coating on the lens on the lens supporting groove 20.

[0020] In one embodiment of the present invention, the spraying bracket 10 is used to carry the cured lens, and the lens supporting grooves 20 are densely distributed on the spraying bracket, and the whole is in the shape of an upwardly arched disc, which has high stability, is convenient for placing the lens, and is easy for workers to operate. The illumination disk 30 is installed at the upper end of the spraying bracket 10, and has a light source emitter corresponding to each lens, which is used to cure the lens color-changing film layer after spraying.

[0021] In addition, a spraying robot arm 40 is installed around the spraying bracket 10 through a circular track. It is operated by a robot arm and an electrostatic spray gun is installed at the end. Compared with manual spraying, the color-changing powder coating is a coating material containing photochromic material.

[0022] Specifically, the spraying robot arm 40 includes an electrostatic spray gun, a lift, a powder supply barrel, and a filter screen; the electrostatic spray gun adopts the principle of high voltage generation, and the color-changing powder coating enters the electrostatic spray gun from the powder supply system with the help of compressed air gas. A high voltage generated by a high-voltage electrostatic generator is applied to the front end of the electrostatic spray gun. Due to corona discharge, dense electric charges are generated near it. When the powder is sprayed from the gun nozzle, charged coating particles are formed. Under the action of electrostatic force, it is sucked onto the lens with the opposite polarity. As the amount of powder sprayed increases, the charge accumulates more. When the thickness reaches 150-200μm, it will stop adsorbing due to the electrostatic repulsion, and finally a photochromic film layer is formed on the surface of the lens.

[0023] The center of the spraying bracket 10 of the present invention is supported by an adjusting shaft, and the height can be adjusted to facilitate assembly. A paint surrounding groove 50 is arranged around it to collect the sprayed color-changing paint.

[0024] In addition, the light source emitter is set to infrared light. The red light can eliminate the stress of the lens film layer and quickly solidify the film layer to avoid coating flow, resulting in uneven color-changing film layer and affecting the color-changing effect.

[0025] The illumination disk 30 is driven by the lifting mechanism to move closer to or away from the spraying bracket 10, so as to facilitate the operation and adjustment of the height of the spraying robot arm 40.

[0026] An arc-shaped notch extends from one end of the lens supporting groove 20 to facilitate taking out the lens.

[0027] In summary, the present invention uses a spray bracket to carry the lens, and a spray robot arm electrostatically sprays the color-changing powder coating, so that the color-changing film layer is more uniform. At the same time, the upper end is infrared cured by a light disk to reduce stress, improve film layer forming efficiency, and also avoid uneven casting of the color-changing powder coating.

[0028] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A photochromic lens processing device, characterized in that: include: A spraying bracket, the spraying bracket is in the shape of a disk with the center arched upward, and has a plurality of lens supporting grooves on the surface, and the lens supporting grooves are in the shape of countersunk holes; An illumination disk, which is mounted on the upper side of the spraying bracket and corresponds to each other, and has a plurality of light source emitters corresponding to the lens supporting grooves; A spraying robot arm is used to spray color-changing powder coating on the lens on the lens supporting groove.

2. The photochromic lens processing equipment according to claim 1, characterized in that: The spraying robot arm includes an electrostatic spray gun, a lift, a powder supply barrel, and a filter screen; the electrostatic spray gun adopts the principle of high voltage generation, and the color-changing powder coating enters the electrostatic spray gun from the powder supply system with the help of compressed air gas. A high voltage generated by a high-voltage electrostatic generator is added to the front end of the electrostatic spray gun. Due to corona discharge, dense electric charges are generated near it. When the powder is sprayed from the gun nozzle, charged coating particles are formed. Under the action of electrostatic force, it is attracted to the lens with the opposite polarity. As the amount of powder sprayed increases, the charge accumulates more. When the thickness reaches 150-200μm, it will stop adsorbing due to the electrostatic repulsion.

3. The photochromic lens processing equipment according to claim 1, characterized in that: The center of the spraying bracket is supported by an adjusting shaft and a paint surrounding groove is arranged around it.

4. The photochromic lens processing equipment according to claim 1, characterized in that: The light source emitter is configured to be infrared light.

5. The photochromic lens processing equipment according to claim 1, characterized in that: The illumination disk is driven to approach or move away from the spraying support by a lifting mechanism.

6. The photochromic lens processing equipment according to claim 1, characterized in that: One end of the lens supporting groove is extended with an arc-shaped groove.

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