Light curing device

Abstract

The invention relates to a light curing device, comprising a casing with an opening on the front side, a partition plate arranged in the casing, and a movable shelf, an openable door plate is arranged at the opening, and the partition plate is located at the side of the shelf. A first row of UV light pipes and a second row of UV light pipes are arranged above, the first row of UV light pipes includes at least two first UV light pipes, the second row of UV light pipes includes two second UV light pipes, and the second row of UV light pipes includes at least two first UV light pipes. The UV light pipe is lower than the first UV light pipe, and the second UV light pipe is located outside the first UV light pipe. The invention injects nitrogen gas into the curing chamber to drive away the oxygen in the curing chamber, so as to completely isolate the oxygen from contacting the ear mold or the outer shell. At the same time, the side plate or the inner tank is made of mirror stainless steel, which can enhance the light intensity of ultraviolet rays through reflection. , The arrangement of annular nitrogen injection pipe and multiple air injection holes accelerates the diffusion of nitrogen gas and at the same time makes the nitrogen gas distribution uniform. The special arrangement of the first UV light pipe, the second UV light pipe and the third UV light pipe makes the ear mold Or the shell is completely cured, and the curing effect is good.

Description

technical field [0001] The invention relates to a light curing device. Background technique [0002] Due to the different sizes and shapes of people's auricles, concha cavities, and ear canals, various ear molds and shells must be made during the process of wearing hearing aids to restore hearing. The base material used in the preparation of ear molds is a professional material. The professional material is to add a photoinitiator to a specially formulated resin, and the chemical reaction generated by high-intensity ultraviolet radiation splits into active free radicals or ions. These free radicals or ions The cross-linking reaction with the double bond in the prepolymer or unsaturated monomer forms a monomer gene to initiate polymerization, cross-linking and grafting reactions, and the resin is converted from liquid to solid in a few seconds to a few minutes. The application of light curing technology can greatly speed up the curing rate, reduce the amount of solvent disch...

AI Technical Summary

Problems solved by technology

[0003] The irradiation of ultraviolet light plays a vital role, but the location of the existing UV light tube that emits ultraviolet light is not reasonable enough, the curing of the cured product is poor, resulting in sticky surface of the cured product, poor mechanical properties and wear resistance , insufficient hardness and poor brightness

Therefore, in order to eliminate this bad defect when making ear molds and shells, it is necessary to add cleaning, polishing, varnish and other processes to remove the surface layer that is sticky, low in hardness, and poor in brightness, which is labor-intensive, time-consuming, and material-intensive. , energy consumption

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