Glass lens processing equipment and method

Abstract

The invention relates to a method used to process plastic lens, wherein it comprises a shearing tool to shear and separated shaped plastic lens, a carbon dioxide snow ejector for ejecting the snow to clean lens, and a vacuum absorber for absorbing the plastic lens. The invention also provides relative method, which can effectively remove the dust and dirt in shearing process and reduce the cost.

Description

【Technical Field】 [0001] The invention relates to a processing device and method for plastic lenses. 【Background technique】 [0002] With the vigorous development of the optoelectronic industry in recent years, from digital camera lenses to high-precision optical disc reading heads, the application range of plastic lenses is increasing. At the same time, the quality and accuracy requirements of plastic lenses are also increasing. [0003] The advantage of plastic lenses is that they are light in weight, and can be mass-produced and reduced costs by using injection molding. Therefore, the injection molding process technology has been widely used in light-weight and large-volume plastic products, and its manufacturing technology is relatively mature, generally including: injection →Holding pressure→cooling→ demoulding→cutting→finished product→subsequent processing. FIG. 1 shows a schematic diagram of a semi-finished plastic lens 10 formed by injection → holding pressure → cooling →...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, since the plastic lens 12 needs to be separated from the sprue tip 13 and the runner tip 14 through a shearing process, dust is likely to be generated during the shearing process, and the plastic material has a high dielectric constant and is easy to absorb dust in the environment. Dirt, making the surface of the plastic lens dirty, thus affecting the quality of the lens

In order to control the pollution caused by dust and adsorption dirt on the surface of plastic lenses, it is generally necessary to set up a high-grade clean room with a grade of 100 or more in the injection molding process of plastic lenses, which will increase the production cost of plastic lenses

Even so, the dust generated during the shearing process will inevitably remain on the plastic lens, affecting the subsequent production of plastic lenses and increasing cleaning costs, ultimately affecting the quality of plastic lens products

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