Mirror frame made of different materials and preparation method thereof

Abstract

The invention relates to the technical field of glasses, in particular to a glasses frame made of different materials and a preparation method thereof. An assembly-lacking half mold and a sealing half mold are closed to form a mold; the assembly-lacking half mold is opened after first-time injection molding and cooling are conducted; a formed injection molding body is left in the sealing half mold; then the complete half mold and the sealing half mold are closed to form the mold; second-time injection molding is conducted; the material of the first-time injection molding is different from the material of the second-time injection molding; and after the second-time injection molding is cooled, injection molding of different materials is completed. According to the method, the deformation resistance is high, and deformation is suitable for the face shape, so that a structure formed by the glasses frame and nose pads cannot be damaged when the glasses are impacted, a good buffering effect can be provided, and a wearer can be protected; and meanwhile, friction force between the soft nose pads and the nose is large, so that the glasses frame can be prevented from moving up and down and left and right on the face, the wearer can be protected, the optical center of a lens can be ensured to be stable, and the degree of eyes of the wearer is prevented from being accelerated and deepened.

Description

technical field [0001] The invention relates to the technical field of spectacles, in particular to a spectacle frame made of different materials and a preparation method thereof. Background technique [0002] Spectacle frames are an important component of glasses. There are many options for the material and shape of spectacle frames. However, with the development of the glasses industry, more and more composite materials are used. For example, the materials of spectacle frames and nose pads or temples are Not the same, the processing of this spectacle frame is very complicated. The method used in the prior art is to make separate injection molding and then connect them. The adhesive sticks to the frame. This method not only takes a long time to process and is slow in efficiency, but also has inaccurate positioning and a relatively low yield. However, the nose pads in the prior art are relatively hard, and the wearer often causes the frame to vibrate and vibrate due to acti...

AI Technical Summary

Problems solved by technology

[0005] This setting uses the injection molding method of secondary molding to solve the problem of combining different materials. Compared with the existing technology, the production of the spectacle frame is completed directly by continuous injection molding. The actual production process is different from the previous multi-part production. Carry out assembly again, to the secondary injection molding of the present application, greatly improved production efficiency, improved yield, because the train of thought that the present invention adopts is not to change half mold, carries out secondary injection molding, one injection molding forms a part, the second time Directly using injection molding of different materials, the assembly of two parts and the injection molding of another part can be solved with one injection, which is equivalent to composite assembly at the same time of injection molding, so it not only improves production efficiency, but also greatly improves the yield

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