| 摘要 |
A method for operating a glass pane bending press, in automatic vehicle glazing mfr., involves: (a) lowering a bent glass pane, held by a vacuum holder below the male mould, by downward motion of the upper press crossbeam onto a shuttle ring held at a constant level above the female mould; (b) controlling the downward motion according to a velocity curve having an initial acceleration portion, a max. velocity section and a subsequent deceleration portion for gently laying the pane on the shuttle ring; and (c) designing the curve such that the first diversion of the curve progresses without singularities. The reduced pressure of the vacuum holder matches the pane wt. and the deceleration of the downward motion is adapted to this reduced pressure so that the vacuum holding force is always greater than the counter-force resulting from deceleration and such that the pane is not released from the male mould during deceleration. After redn. or switch-off of the reduced pressure, the pane is laid on the shuttle ring. <IMAGE> |
