Thermoforming method, thermoforming mold and thermoforming device for glass product
US10913676B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2018 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Dec 14, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a thermoforming method, a thermoforming mold, and a thermoforming device. The method comprises: providing a glass sheet to be processed at a softening point temperature and above; providing a thermoforming mold which comprises a male mold, a female mold arranged above the male mold and matched therewith, and a limiting block for limiting the female mold from deviate from the male mold, wherein the female mold comprises a central body module and a female mold frame surrounding the central body module and matched therewith; a first pressurizing process, wherein the central body module and the male mold are matched to press a central plane portion of the glass sheet; and a second pressurizing process, wherein the female mold frame and the male mold are matched to press a peripheral portion of the glass sheet so that the peripheral portion is bent and molded relative to the central plane portion; wherein the central plane portion is always pressed by the central body module in the second pressurizing process. The method improves the quality of a molded glass product and enhances the manufacturing yield of the glass product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.