| 摘要 |
<p>In order to feed two or more yarns having elastic properties in a hosiery knitting machine, so as to constantly secure the same feeding conditions for all yarns, and precisely the same speed and tension, a common feeder roll (10) is provided, with which the yarns are in tangential contact on different peripheral positions, pressed against the roll by an equal number of pressure rolls (11) rolling around the periphery of the feeder roll (10). The revolution speed of the roll, and therefore the yarn feed speed, can be varied by driving the feeder roll (10) by means of a rotary disk (24), the flat surface of which is in revolutionary engagement with a drive wheel (35) which is axially-shiftable, but integral in rotation with the feeder roll (10), in such a way that, by varying the position of the drivewheel (35) in the radial direction of the disk (24), a different revolution speed of the drive wheel (35), and consequently of the feeder roll (10), is obtained.</p> |
