Mold for hot bending 2D (Two-Dimensional) glass lens and hot bending process applying mold

Abstract

The invention discloses a mold for hot bending a 2D (Two-Dimensional) glass lens and a hot bending process applying the mold. The mold comprises an upper die and a lower die, wherein stop blocks are arranged at positions which are in a space, in which the upper die and the lower die are opposite, and are located at two ends; the stop blocks are mutually fixed with the upper die and the lower die; a slide block is arranged at a position which is on the upper die and is located between the two stop blocks; one side, which approaches the upper die, on the lower die is provided with a concave groove; the slide block is matched with the concave groove; the bottom of the concave groove is provided with a plurality of first circular holes; glass beads are arranged in the first circular holes; the surface of one side, which departs from the lower die, on the upper mold is provided with a plurality of equal-spacing slender grooves. According to the mold, through arranging the glass beads in the lower die, when the hot bending process is carried out, the buffer effect on a product is achieved; the 2D glass lens is hot bent more easily; further, the radian and the surface of the processed product are round and smooth; the round and smooth requirements of an edge with a 3D (Three-Dimensional) effect can be met.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a mold for hot bending of 2D glass lenses and a hot bending process using the mold. Background technique [0002] Hot bending glass is formed by heating and softening flat glass in a mold. The heating temperature is about 750 degrees, pressed down, kept for a period of time, then taken out, and then cooled to make curved glass. During work, it is protected by nitrogen to prevent air from entering. Oxidation in the furnace. [0003] At present, when 2D glass lenses are hot-bent into 3D glass lenses, due to the unevenness of the inner cavity of the mold, the product cannot be cushioned during hot-bending molding, making the product surface and radian uneven, and some product surfaces have pits , the processed products are fragile, low yield, and the mold life cycle is short. Contents of the invention [0004] The object of the present invention is to provide a mold f...

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Problems solved by technology

[0003] At present, when 2D glass lenses are hot-bent into 3D glass lenses, due to the unevenness of the inner cavity of the mold, the product cannot be cushioned during hot-bending molding, making the product surface and radian uneven, and some product surfaces have pits , the processed products are fragile, low yield, and the mold life cycle is short

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