| 摘要 |
<p>The invention provides that cut and creased sheets of cardboard are blanked into individual square or rectangular sheets (12) by a blanking apparatus which comprise parallel bars (34) for blanking the sheets into strips, and parallel wires (38) lying at right angles to the bars and under the upper blanking edges of the bars so as to blank the strips into individual sub-sheets (12), such action taking place by virtue of displacement of the cut and creased sheets (10) in a direction at right angles to both the bars and the wires. The spacing between the blanking edges of the bars (34) and the wires (38) in the direction of movement of the sheets is sufficient to enable the curving of the strips during the first blanking stage to recover before the blanking by the wires takes place.</p> |
