| 摘要 |
<p>A stretcher roller (60), or tensioning roller, for a take-down and/or collecting group (30) of a circular knitting machine (1) for knitwear of an "open" type, configured to produce fabric (T) and collecting the fabric in an open configuration, i.e. as a single layer. The stretcher roller (60) can be mounted to a frame (33) of the take-down and/or collecting group (30) in an intermediate position between a needle-bearing organ (0) of the knitting machine and a collecting roller (31) for the fabric, and interacts with the fabric (T) advancing towards the collecting roller (31) in such a way that the fabric passes over at least a portion of the stretcher roller, around it and in contact therewith, and is stretched and opened in flat towards two opposite lateral ends (61, 62) of the stretcher roller. The stretcher roller comprises a rod (63), mounted to the frame (33) and exhibiting a longitudinal axis (L), and a plurality of sectors (65) rotatably mounted to the rod (63) so as to be able to rotate on the rod, each sector independently of the other sectors, about a respective rotation axis. Each sector (65) develops on a respective plane of development (66) inclined transversally, and not perpendicularly, with respect to the longitudinal axis (L) of the rod of the stretcher roller, and the respective rotation axis of each sector (65) is perpendicular to the respective development plane (66).</p> |
