| 摘要 |
A process for cutting film-like material as a result of a shearing action performed by a blade and a counterblade provided with respective cutting edges acting in a given cutting plane. The blade has a first end and a second end, and movement of the blade is controlled in a differentiated way and along paths that are substantially parallel to one another in positions corresponding to the first end and the second end between: a position of divarication, in which the respective cutting edges define a space for advance of the film-like material, and in which the cutting edge of the blade is located, with respect to the cutting edge of the counterblade, at a distance greater than the homologous distance measured at a point corresponding to the second end; and a closed position, in which the blade and the counterblade are closed on one another after performing the cutting of the film-like material with a movement of co-operation of the cutting edges which is performed in a gradual way starting from the second end in the direction of the first end of the blade.
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