ES404486A1 - Shuttleless looms - Google Patents

Abstract

Improvements in knitting machines and, more particularly, in the devices for folding, inside the fabric, the ends of the passes in knitting machines with weft yarn feed extracted from stationary bobbins arranged outside the shed, devices of the type having means for catching and retaining the pass end released by a weft inserter and means for taking said pass end again and reintroducing it in the next shed where it will be adjusted against the piece of fabric with the corresponding pass, said device being mounted on the sill of the loom, at the end of that located on the side where the weft inserter leaves the shed, releasing the end of the pass to which it has just entered, characterized in that the device has means for catch, retain and reintroduce the end of the pass, consisting, respectively, of two nozzles connected to a source of depression n, one (5) of these two nozzles being a retention nozzle that evolves on the outside of the shed in a direction approximately parallel to that of the warp threads (9) and whose opening (10) is brought into immediate proximity the end of the inserter when it releases the pass (4), while the other nozzle (6) is a reintroduction nozzle consisting of the terminal part, in the form of a transverse hook, of a tube (11) which, in turn, it evolves in a direction approximately parallel to that of the warp threads and that can, in addition, pivot around its geometric axis so that the beveled end (12) of said nozzle can penetrate, in one direction of this pivoting movement, into the inside of the shed, through one of the two warp yarn layers, at a certain distance from the edge of this sheath, to exit laterally from the shed and take the part of the pass end included between the marginal warp yarn and a s scissors (7) that section this end between said marginal warp yarn and the retention nozzle, said part of the end of the pass being dragged and reintroduced into the shed by the pivoting movement, in the opposite direction, of the reintroduction nozzle (6), while the waste of thread (18) has been sucked up and eliminated by the retention nozzle. (8). (Machine-translation by Google Translate, not legally binding)