Equipment for molding and shaping glass capable of guilding nitre material to center

Abstract

This invention provides a glass molding and shaping device for centrial-piloted glass materials, which can mold the glass materials into glass lenses. The device is composed of a lower mold unit that is composed of a cylinder, an inner pore, asset of lower mold core fixed in the inner pore and at least two piloting blocks, and a set of upper mold core that is close to the inner pore. The cylinder is fixed with at least two piloting holes whose interval is equiangular on the circumference. The piloting block is placed in the piloting holes and can shift in the radial direction. The piloting block has a piloting surface facing the outer circumferential surface of the glass materials. When the piloting block shifts to the retracted position, it can push the outer circumferential surface of the glass materials to make the center of the glass materials is exactly opposite to the axial line of the cylinder. The upper mold core can shift between the first and the second positions, and when it shifts to the second position, it can pushes the piloting block outward to the expanded position, which is faraway from the outer circumferential surface of the glass materials.

Description

technical field [0001] The invention relates to a forming device, in particular to a glass molding device capable of guiding the center position of the glass material and centering the glass material. Background technique [0002] Such as figure 1 , 2 As shown, it is an existing mold for forming optical glass lenses, which includes a sleeve 1, a lower mold core 2 that must be located in the sleeve 1 and can accommodate a glass material 4, and a removable sleeve. The upper die core 3 located in the sleeve 1. Generally speaking, after the glass nitrate material 4 is placed on the lower mold core 2 , the upper mold core 3 can be moved down to press the glass nitrate material 4 into a glass lens 5 during the high temperature molding process. However, if image 3 , 4 As shown, in fact, the center position of the glass nitrate material 4 may deviate from the center axis position of the sleeve 1 during the placing process or during the mold transfer process (for example, the p...

AI Technical Summary

Problems solved by technology

However, if image 3 , 4 As shown, in fact, the center position of the glass nitrate material 4 may deviate from the central axis position of the sleeve 1 during the placing process or during the mold transfer process (such as the production process of the continuous mold). Therefore, This glass material 4 tends to be shaped into a partial meat lens 6 and becomes a defective product

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