circular knitting machine with a device for repeating the needle selection in at least one fadenlieferungsstelle

摘要

The present machine (1) has a device for repeating the selection of the needles at least at one thread feed, which includes a memory element (12) arranged proximate to the lower end of the selectors (5), which can oscillate in a plane radial to the needle cylinder (2) by virtue of the action of selection levers arranged upstream of a thread feed of the machine (1), according to the direction of the rotation imparted to the needle cylinder (2) about its own axis (2a). The selectors (5) can individually oscillate in a radial plane with respect to the needle cylinder (2) from an extraction position, whereat they protrude from the needle cylinder (2) with a main heel (5a) so as to engage actuation cams (7) arranged about the needle cylinder (2), to a sunk position, whereat they do not engage the cams. The memory element (12) is controllably movable from an inoperative position, whereat it does not interfere with the oscillation of the selectors (5), to an operative position whereat, between two feeds of the machine (1), it maintains the position of the selectors (5) imparted by the selection levers upstream of the first feed so that the performed selection is maintained at the second feed as well without requiring a new selection.