| 摘要 |
<p>The drawing assembly (1) is preferably positioned in intermediate position between a first assembly of straighteníng members, lying on a substantially horizontal piane, and a second assembly of straightening members, lyìng s on a substantìally vertical piane, and comprises a set of drawing wheels (2a, 2b) suitably motorized and a set of contrasting wheels (3a, 3b, 3c), fit to determine between them a curved progress pathway (P) for the meta) sections to be fed. One at least of saìd contrasting wheels (3a, 3b) is fitted rotating on an axis displaced in longitudinal direction to the progress io pathway (P) with regard to the vertical lying piane of the axis of an opposing drawing wheel (2a, 2b) it co-operates with, to define said progress pathway (P) for the sections.</p> |
