| 摘要 |
<p>A method and an apparatus (1) for cutting a ribbon (2) of rubber-coated fabric including a plurality of reinforcing cords (3), intended in particular for manufacturing semi-finished reinforcing products of a green tire, are described. The method of the invention comprises the steps of forming at a working position (W) a notch (24) of predetermined length extending between two adjacent cords (3) along a cutting direction (C-C) by means of a punching device (4) cooperating with an abutting counter-blade (7); inserting at least one cutting blade (19) through the notch (24) causing the same to pass at least partly over the lying plane of the ribbon (2); and carrying out a first and a second cut of the ribbon (2) by shifting the blade (19) along the cutting direction (C-C) for a first portion extending between the notch (24) and a first lateral edge (25) of the ribbon (2) and, respectively, for a second portion extending between the notch (24) and an opposite lateral edge (26) of the ribbon (2). Advantageously, the risk of damaging or cutting the reinforcing cords (3) is minimized, thereby minimizing both the amount of production scraps and the risk of jamming the automatic machines for manufacturing green tires.</p> |
