Preparation method of scratch-resistant spectacle lens

Abstract

The invention discloses a preparation method of a scratch-resistant spectacle lens, which comprises the following steps of: pouring plastic into an injection molding feeding unit, heating and melting, feeding into an injection molding unit by the injection molding feeding unit, maintaining pressure, cooling, completing injection molding of an injection molding side product, pouring a special injection molding material and a replaceable spraying material into a spraying feeding unit, and carrying out injection molding on the injection molding side product. Heating and fusing to obtain a spraying side injection molding material; a sliding unit I slides to open an injection front mold and an injection rear mold in the injection unit, so that the injection rear mold carries an injection product, and the injection product is rotated to one side of a spraying unit through a rotating unit; and then the second sliding unit slides, the spraying front mold of the spraying unit and the injection molding rear mold of the injection molding unit are combined, and finally the product is taken out. The spectacle lens prepared by the invention has a good scratch self-repairing function.

Description

Technical field [0001] The present invention relates to the technical field of spectacle lens preparation method, specifically a scratch-resistant spectacle lens preparation method. Background [0002] The existing glasses lenses are mainly made through the injection molding process, using PMMA plastic materials, the glasses lenses are changed from glass materials to plastic PMMA materials, which reduces the weight of the product to a certain extent, improves the problem of fragile lenses, improves the feeling of belting, but it is still not good enough, the use of working conditions determines that the glasses will need to be frequently rubbed, for myopic people, when exercising, the user has to wear glasses, but the movement itself may inevitably scratch the lenses, fall, Collisions can also cause the lens to break. Suddenly, the lens is rubbed and broken, which can seriously affect the current movement of the glasses wearer. [0003] Existing spectacle lenses cannot be repaire...

AI Technical Summary

Problems solved by technology

[0002] Existing spectacle lenses are mainly made of PMMA plastic material through injection molding process. Spectacle lenses are changed from glass material to plastic PMMA material, which reduces product weight to a certain extent, improves the problem of lens fragility, and improves the quality of the lens. It has a feeling, but it is not good enough. The working conditions determine that the glasses will need to be wiped frequently. For the myopic people, the user has to wear glasses when exercising, but the exercise itself may be scratched inevitably. Lens, drop, collision may also cause the breakage of the lens

Sudden scratches and breakage of the lens will seriously affect the current actions of the glasses wearer

[0003] Existing spectacle lenses cannot be repaired after being scratched or the repair cost is high, and it is also impossible to avoid the problem of fracture caused by falling and collision

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