Injection mold and injection molding method for integrally-formed gradient color lens

Abstract

The invention belongs to the technical field of lens injection molding, and discloses an injection mold and an injection molding method for an integrally-formed gradient color lens. The injection molding method for the integrally-formed gradient color lens comprises the following steps that PA plastic and a pigment are selected, and the PA plastic is pretreated; the mold is prepared; the PA plastic is melted, the PA plastic in the molten state is poured into the mold, and curing, demolding and cleaning are carried out; meanwhile, the lens is subjected to post-curing; and the lens is ground and polished, and the lens is detected. According to the injection mold and the injection molding method for the integrally-formed gradient color lens, the lens and a lens frame are integrated, carrying is convenient, colors are synchronously and gradually changed and consistent, the appearance is exquisite, colors and materials are combined, the lens is high-end and elegant, and the mold lens has the functions of high contrast, blue light prevention, dazzle prevention, reflection reduction, fog prevention and color change, is suitable for people of all ages, and is excellent in effect. The PA plastic is resin for fibers to replace metal to meet the requirements for light weight and cost reduction of downstream industrial products.

Description

technical field [0001] The invention belongs to the technical field of lens injection molding, and in particular relates to an injection mold and method for integrally forming a gradient color lens. Background technique [0002] At present, in the injection mold of the color-changing lens in the prior art, the color-changing liquid is usually attached to the lens by soaking to realize the combination of the color-changing substance (such as silver halide, etc.) and the lens. However, the method of attaching discoloration substances on both sides of the lens by soaking is prone to problems such as lens hanging liquid and uneven adhesion of discoloration substances, thereby reducing the quality of the lens, and most of the lenses and frames are separated, but in the future When the lens is put into the environment, it is easy to wear the lens or when the lens is not installed in place, the lens in the frame is easy to fall off, causing unnecessary losses. In order to solve th...

AI Technical Summary

Problems solved by technology

But this kind of operation is only limited to the production of lenses, it is not one-piece, it will be inconvenient to carry the case, and in terms of color, the fly in the ointment is that the color is the same, the effect is not good, and the materials used are not current. The best materials, which do not achieve the advantageous effects described in this application

[0003] Through the above analysis, the problems and defects of the existing technology are: the existing technology has the same color, does not have the advantage of visual effects, and is not integrated, so it is not convenient to carry

At the same time, the selected material is not the best lens development material at present, and the lens cannot achieve the expected effect.

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