Method and apparatus for bending glass
AssigneeUniglass Engineering Oy
InventorsJukka Vehmas, Juha Paavola, Antti-Jussi Numminen
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Abstract
A method of bending glass, in which glass (5) is heated in a bending furnace (1). Before the bending, the glass (5) is transferred from the heating point or zone onto a mould (7) located thereafter. While the glass (5) is being transferred onto the mould (7), the mould (7) moves in such a way that the horizontal velocity of at least the front edge of the mould (7) is substantially as high as the horizontal velocity of the glass (5).
Claims21
A method of bending glass, in which method
- glass is heated in a bending furnace,
- the glass is transferred onto a movable mould,
- when the glass is being transferred onto the mould, the mould is moved in such a way that the horizontal velocity of at least the front edge of the mould is substantially as high as the horizontal velocity of the glass,
- while the glass is being transferred onto the mould, the front and rear edges of the mould have different paths of movement and
- the glass bends upon the mould.
An apparatus for bending glass, which apparatus comprises a bending furnace comprising heating means for heating glass;
- a mould for bending glass;
- means for transferring glass onto a mould, whereby the mould is arranged to be moved into a position following a heating point or zone of the glass;
- and a control unit for guiding the movements of the mould and the glass in such a way that when the glass is being transferred onto the mould, the horizontal velocity of at least the front edge of the mould is arranged to be substantially as high as the horizontal velocity of the glass, and while the glass is being transferred onto the mould, the front and rear edges of the mould are arranged to have different paths of movement.
Dependencies are inferred from the claim text.