A kind of mold and a kind of manufacturing method of polarizing lens
A technology for polarizing lenses and manufacturing methods, which can be applied to optical elements, household appliances, and other household appliances, etc., and can solve problems such as inability to position and high requirements for reliable positioning of polarizing films, etc.
Active Publication Date: 2017-11-07
XIAMEN JS POLARIZERS TECH
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Problems solved by technology
The main reason is that due to the high requirements for the reliable positioning of the polarizing film in the mold cavity in the film injection molding manufacturing process, it is impossible to reliably position the left and right lenses with large radians in the mold cavity at the same time in the prior art. Positioned to undergo injection molding high-pressure shock for in-membrane injection
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[0032] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0033] refer to Figure 1-Figure 6 As shown, it is a mold for manufacturing a polarizing lens with a semi-enclosed one-piece film injection molding with a large arc and a large radian, including an upper mold 20 and a lower mold 10, and an upper mold 20 and a lower mold 10 together form the entire cavity for injection molding polarized lenses.
[0034] The lower mold 10 has a concave cavity surface structure and is mainly used to form the convex outer surface of the polarizing lens 3 . The concave area of the lower mold 10 includes: a left arcuate concave portion 11 on the left, a right arcuate concave portion 12 on the right and a convex ridge 13 connecting the two, respectively for forming the left lens 31, Right lens 32 and bridge of the nose connecting part 33. In addition, the two wings of the concave area respectively have an edge protecti...
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The invention relates to the field of optical lens manufacturing. The invention provides a die which comprises an upper die and a lower die, wherein the lower die adopts a concave cavity surface structure which comprises a left arc surface concave part, a right arc surface concave part and a raised ridge part for connecting the left arc surface concave part and the right arc surface concave part, and limiting raised parts are respectively arranged at the upper end and the lower end of the raised ridge part; the upper die adopts a convex cavity surface structure which comprises a left arc surface convex part, a right arc surface convex part and a groove part for connecting the left arc surface convex part and the right arc surface convex part; a plurality of external ejector pins and internal ejector pins are arranged at the periphery of a convex region, and the external ejector pins are longer than the internal ejector pins. The invention further comprises a manufacturing method of a polarized lens. The polarized lens is manufactured in virtue of the die and through the following steps: A, providing the die used for manufacturing the polarized lens; B, cutting and bending a polarized membrane; C, placing the polarized membrane; D, closing the die; E, ejecting the melted resin; and F, forming after cooling, and demolding. The die and the manufacturing method, provided by the invention, are used for manufacturing the integrated polarized lens formed through in-membrane ejection.
Description
technical field [0001] The invention relates to the field of optical lens manufacturing, in particular to the manufacture of polarized lenses, in particular to a manufacturing method and mold for a left-right integrated polarized lens. Background technique [0002] The effect of polarized glasses is to use the characteristics of polarized lenses - that is, only light of a certain polarization direction in natural light is allowed to pass through. Polarized lenses are widely used optical lenses suitable for outdoor sports. Wearing polarized lenses can filter the glare of the sun shining on the water, land or snow in equal directions. People generally wear polarized glasses, which is formed by processing the bare polarized lens into a suitable size lens and installing it in the spectacle frame. The currently widely used manufacturing process of polarizing lens bare chips is to use high-temperature molten polymer materials (such as PC, PA, PMMA, etc.) To firmly attach a layer...
Claims
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IPC IPC(8): B29C45/26B29C45/14B29L11/00
CPCB29C45/14B29C45/2602B29L2011/0016
Inventor 李俊男
Owner XIAMEN JS POLARIZERS TECH