| 摘要 |
<p>A press bending apparatus (10) for shaping heat softened glass sheets between an upper press member (30) and a lower press member (32) is provided. The conveyor system (28) for transferring the sheets of glass (12) in the press bending apparatus includes concave shaped rollers (68) such that the glass sheets tend to sag into conformity with the rolls (68) as the sheets are positioned for bending operations between the upper (30) and lower (32) press members. The lower press member is a continuous press bending ring (50) to prevent improper sagging of the glass sheet (12) around the peripheral edges of the sheet (12). The concave shape of the rolls (68) mounted inside of the press ring (50) provides maximum support for the formed glass sheet to prevent sagging of the glass. Additional production benefits can be obtained by forming the conveyor system (28) and lower press member (32) as a modular unit and the upper press member (30) as a modular unit for each model of bent glass to facilitate changing the press members for production model changes.</p> |
