| 摘要 |
<p>Device, method and sewing machine (10) adopting the device, for the simultaneous tensioning on four sides of a textile material (11) fed continuously. The sewing machine (10) includes sewing members (12, 15) and drawing means (13) able to unwind the textile material (11) from feed means (14). The method provides that pre-tensioning means (19) and tensioning/drawing means (20-20a), mounted substantially at inlet to the sewing machine (10), act on the sides of the textile material (11) to provide a constant tensioning of the textile material (11), which unwinds continuously from the feed means (14) to be sent to the sewing members (12, 15).</p> |
