Multi-curved glass forming method and forming device

Abstract

The invention provides a multi-curved glass forming method. The multi-curved glass forming method comprises the following steps that a forming furnace comprises a conveying mechanism, an interaction area, a heating area, a forming area and a cooling area; a plurality of molds are placed in each functional area, are made of porous materials and are provided with grooves or bosses for profiling theouter surface of multi-curved glass; a glass substrate is fed to the molds in the interaction area through the interaction area; the heating area heats the glass substrate to reach a set temperature;the glass substrate is continuously heated in the forming area; an air exhauster communicates with the forming area to vacuumize the forming area, so that gas penetrates through through holes of the molds to enter the air exhauster; the cooling area cools the glass substrate to obtain multi-curved glass; and the multi-curved glass is taken out of the molds in the cooling area. Gas is exhausted from the through holes of the molds, exhaust is uniform, the through holes are tiny holes, no through hole trace is left when the glass substrate is formed, and thus the surface quality of multi-curved glass forming is improved.

Description

technical field [0001] The invention relates to a glass molding method, in particular to a multi-curved glass molding method, and also relates to a multi-curved glass molding device. Background technique [0002] In recent years, curved glass has been applied to display panels of electronic devices. At present, the industry generally adopts the hot pressing method of convex and concave dies to form. That is to put the glass substrate into the concave mold, and then cover the convex mold and put them into the hot-press furnace and heat them. The glass substrate softens with increasing temperature. Driven by the pressure exerted by the punch, the glass substrate is deformed and attached between the die and the punch, and finally cooled and shaped. Curved glass needs to be in contact with the surface of the mold when it is molded, resulting in greater roughness of the concave and convex surfaces of the curved glass after molding. Moreover, the curved surface forming of glas...

AI Technical Summary

Problems solved by technology

Curved glass needs to be in contact with the surface of the mold when it is formed, resulting in greater roughness of the concave and convex surfaces of the curved glass after molding

Moreover, the curved surface of glass depends on the shape of the mold, and it is difficult for the existing punch and die to form multiple complex curved surfaces.

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