| 摘要 |
<p>The invention concerns a method for making a tapered yarn bobbin obtained by depositing superposed layers (L3) of a yarn on a cylindrical support (20) with a longitudinal axis (X), and comprising a base cone (12) with generatrix (L2), and a winding cone (13) with genratrix (L3) and a main body (11) with generatrix (L1) inclined relative to the axis (X) and linking the two generatrices (L2, L3) of the two cones (12, 13). The method is characterised in that it comprises two lags for displacing a yarn guide, one first lag enabling to form part of the base cone (12), the last yarn layer deposited along said first lag up to the end of the winding cone, and a second lag enabling to terminate said started base cone (12) and to form simultaneously the main body (11) and the winding cone (13), the first yarn layer deposited along the second lag being parallel to the last layer deposited along the first lag.</p> |
