| 摘要 |
<p>A yarn cutting head for a tufting machine, including a discoid, rigid cutting plate (20) having a central bore (24) for the free passage therethrough of a first element (10) of the machine, means (28) for rigid attachment of the plate to a driving shaft (10) of the machine, and at least one cutting hole (30) eccentrically situated relative to said central bore and substantially concentric with a yarn-feeding duct (4). The yarn cutting head further includes a revolving cutting knife (22) made of a relatively thin, elastically flexible material, to be driven by a motor of the tufting machine via a drive shaft (10). The elastically flexible cutting knife (22) is present in such a way that, when upon assembly, the rear face of the hub portion and the cutting edge are pressed against the cutting plate. </p> |
