Glass plate heating/bending device
AssigneeNippon Sheet Glass Co., Ltd.
InventorsMasuhide Kajii, Katsuhiko Kitaya
Life of this patent
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Abstract
A local heating source is provided in a heating furnace in which a glass plate is continuously conveyed. The heating source is position-controlled by numerical data in a direction along the glass surface in accordance with the conveyance of the glass plate, so as to data-control the heating trace. As a result, the heating patterns can be easily altered in units of article types of the glass plates which are to be bent in different shapes, resulting in highly efficient production on a multi article type-small lot base.
Claims10
A glass plate heating/bending device for heating and softening a glass plate and bending the same to have a required shape, comprising:
- a heating furnace in which a glass plate is continuously conveyed, local heating means arranged in said furnace to oppose a glass surface, drive means constructed and arranged for displacing said heating means to move relative to the glass surface as the glass plate is conveyed through the furnace, and control means for supplying displacement control data to said drive means in synchronism with the conveyance of the glass plate inside said furnace, wherein
- said local heating means forms a heating path corresponding to the control data on the glass surface while the glass plate is conveyed.
Dependencies are inferred from the claim text.