Production method of secondary ejection nose pad spectacles and structure thereof

Abstract

The invention discloses a production method of secondary ejection nose pad spectacles and a structure thereof, and discloses a production technological method of spectacles with nose pads and a spectacle structure manufactured by utilizing the technological method. The production method comprises the following steps: 1) carrying out primary injection of spectacle framework with nose pad fixing lugs on spectacle framework raw materials under high-temperature liquid state in a spectacle framework mold, cooling, molding and finishing; 2) putting the nose pad fixing lugs of the molded spectacle framework at corresponding parts of nose pad molds, carrying out secondary injection, injecting the nose pad raw materials at high-temperature liquid state into the nose pad molds, injecting the nose pad raw materials onto the lugs of the spectacle framework, cooling, fixing and molding so as to form nose pads fixed on the lugs; 3) injecting spectacle legs into spectacle leg molds, cooling, molding and demolding; 4) assembling the spectacle frame with the spectacle legs to form a finished product. The invention also discloses a spectacle structure manufactured by the method. According to the invention, secondary injection is adopted, so that the nose pads and the spectacle framework form a favorable fixing effect; moreover, the manual cost is reduced; the efficiency is improved.

Description

technical field

[0001] The invention belongs to the field of spectacles, and mainly relates to a production process and structure of spectacles with nose pads. technical background

[0002] In the prior art, the nose pads of plastic spectacle frames are generally integrally formed on the frame, and the material properties are the same as those of the frame. Since the material properties of the spectacle frames are harder, the hardness of the nose pads will also be higher. That is to say, there will be a sense of pressure on the bridge of the nose when wearing it, which is uncomfortable, and long-term wearing will cause indentations. At present, there are also nose pads that are made of soft materials, which will relieve the pressure on the bridge of the nose when worn, but the nose pads and the frame are formed separately, and must be fixed on the frame by glue or locking screws. The disadvantage is that the installation is complicated and it is very easy to fall off. Con...

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