| 摘要 |
The yarn-feeder comprises a reel (R) having loops of yam wound thereon and driven by a permanent-magnet, synchronous brushless motor to draw the yarn from a spool (RO) and to feed it to a textile machine arranged downstream (MF). The motor (M, M') comprises a stator (STA, STA') consisting of a substantially cylindrical, hollow housing having at least three elongated pole shoes (E1-E3, E1'-E3') having respective excitation coils wound thereon (A, B, C, A', B', C'), and a rotor comprising a magnetic member having a circular profile with alternating poles, which is coaxially supported on the driving shaft (AM, AM') near the coils. |
