A raw material adding device

Abstract

A novel raw material addition device provided by the invention includes a processing tank and a feeding device. The feeding device comprises a material storage chamber and an infusion tube. on end of the infusion tube is connected to the raw material storage chamber; the middle is provided with a regulator; and the other end is connected to the processing tank. For material transfer which can be achieved by gravity potential energy, a pump can be omitted. For difficulty in putting the raw material storage chamber in high position, a pump can be added to help material transfer. For different material consumption of each component in the production process, a plurality of feeding devices can be arranged. The invention has the following beneficial effects: the novel material addition device provided by the invention can be used in continuous production; slow feeding is regulated by the regulator, so that concentration, proportion and temperature of the raw liquid in the processing groove do no fluctuate severely, thereby ensuring the stability of production. The invention also fully takes into account of volatile and largely-consumed components in the raw liquid, and the additional feeding devices are connected to ensure the stability of production.

Description

technical field [0001] The invention belongs to the field of spectacle lens processing, and in particular relates to a raw material adding device of a resin hardening device. Background technique [0002] Since the previous spectacle lenses were made of glass, but they were easy to break, they were gradually replaced by resin lenses. In the production process of resin eyeglass lenses, hardening the resin material is the most important step besides the film in the lens. The original processing mode is to mix the strengthening liquid and methanol in a certain proportion to form a hardening liquid, which is added to the work In the tank, after soaking and hardening the lens, the hardening liquid in the working tank will gradually decrease with the progress of processing and production, and methanol is easy to volatilize, and it will also slowly volatilize during the processing, resulting in The concentration of methanol is reduced, which in turn will affect the hardness differ...

AI Technical Summary

Problems solved by technology

[0002] Since the previous spectacle lenses were made of glass, but they were easy to break, they were gradually replaced by resin lenses.

In the production process of resin eyeglass lenses, hardening the resin material is the most important step besides the film in the lens. The original processing mode is to mix the strengthening liquid and methanol in a certain proportion to form a hardening liquid, which is added to the work In the tank, after soaking and hardening the lens, the hardening liquid in the working tank will gradually decrease with the progress of processing and production, and methanol is easy to volatilize, and it will also slowly volatilize during the processing, resulting in The concentration of methanol is reduced, which will affect the hardness of the lens before and after, and the production process is intermittent, so the efficiency is not high

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