BENDING OF GLASS SHEETS Russian patent published in 2021 - IPC C03B23/23 C03B35/14 C03B40/00 

FIELD: glass industry.

SUBSTANCE: group of inventions relates to a device for bending glass sheets and a method of producing bent sheet glass. Device for bending glass sheets comprises upper bending die and bending plate. Upper bending die and/or said bending plate are configured to move laterally relative to each other. Bending plate comprises workpiece for gravity bending of glass sheet and pressure mold, made with possibility of pressing glass sheet to upper die. In form of above one of these two forms of bending plate is surrounded by another, and at least one of these two forms of bending plate is made with possibility to move vertically relative to another. Device comprises an upper retaining die provided with a pneumatic retaining mechanism, in particular a suction means, capable of holding glass sheet opposite to itself. Upper retaining die and/or bending plate are configured to move laterally relative to each other, so that bending plate is made with possibility of alternate location under upper holding die or under upper bending die. Bending plate is made with possibility of back-and-forth movement between position under upper retaining die, to receive sheet on its workpiece, and position under upper bending die to press sheet to upper bending die by means of its clamping mold. Billet mold comprises retainer comprising suction system acting on glass bottom side through holes in its contact path. Suction is sufficiently strong to prevent movement of the glass in the lateral direction on the workpiece during acceleration or deceleration.

EFFECT: technical result consists in stabilization of glass in optimum position on bending plate during its movement.

21 cl, 19 dwg