| 摘要 |
<p>A feeding and cutting device in which a continuous web of sheet material provided with spaced transverse central slits is step advanced by feeding means along a web path to cutting means comprising a movable blade and a stationary blade arranged on opposite sides of said web path on a fixed cutting plane substantially at right angles to said web path, said feeding means advancing the web so that, at the end of each advancing step, one slit is located a short distance downstream from said cutting plane; reciprocating pushing means being operable, at the end of each advancing step, in a direction towards said stationary blade and parallel to said cutting plane to engage the web downstream from said one slit so as to depress the leading edge thereof; and return feeding means being operable, in a direction opposite to said feeding means and before operation of said movable blade, to displace said web backwards until said depressed leading edge engages a lateral downstream edge of said stationary blade.</p> |
