Injection mold for multi-color spectacle frame

Abstract

The invention discloses an injection mold of a multi-color spectacle frame, and relates to the technical field of injection molds. According to the technical scheme, the injection mold comprises an upper mold and a lower mold, a hot runner and a positioning cavity for containing spectacle legs are arranged between the upper mold and the lower mold, the upper mold and the lower mold are provided with cavities for forming different-color parts of a non-slip section and a bending section, and the hot runner communicates with the cavities. The upper mold is provided with an injection port for injection molding of an injection molding machine, the injection port is in communication with the hot runner, and the length direction of the hot runner in the upper mold is in the vertical direction. The lower mold is provided with a first spring, and clamping portions are slidably arranged on the two sides of the positioning cavity. Compared with the paint spraying coloring method, the shape and the position of different-color layers formed by injection molding are accurate, irrelevant parts are not prone to being sprayed, manual spraying is not required, and the manual workload is reduced; andthe positioning accuracy of the spectacle legs in the lower mold is high, the stability is high, and the plastic molding quality can be ensured. The quality of the spectacle frame produced by the injection mold is better.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to an injection mold for multi-color spectacle frames. Background technique [0002] Glasses are common wearing articles in life. Glasses include frames and lenses, and frames include frames and temples. At present, the materials of mirror frames are mostly polymer materials such as plastics and resins, which are generally produced by injection molds. [0003] refer to figure 1 , is an existing mirror leg, including a main body 5, and the two ends of the main body 5 are respectively provided with an anti-skid section 51 and a bending section 52, wherein the anti-skid section 51 is used for people to hold the temple to wear the glasses, and bend them The segment 52 is used to contact the back of the ear so as to prevent the glasses from falling off. The anti-slip segment 51 and the bending segment 52 of the mirror leg are different in color from the main body 5 . [0004] ...

AI Technical Summary

Problems solved by technology

However, the method of spraying paint is easy to contaminate irrelevant parts, and manual spraying is required, which requires a lot of work

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