GB1442695A - Devices for laying layers of weft threads - Google Patents

Abstract

1442695 Cross-laying threads; knitting- machines WIRKMASCHINENBAU KARLMARX-STADT VEB 25 April 1974 [21 May 1973] 18126/74 Headings D1C and D1R An array of weft threads 5 is laid by laying means 2 between thread transport means 4, 4a which are aligned at an angle. The term threads includes slubbings, fleece webs and film webs. The laying means is characterised in that it allows the threads to be hooked simultaneously at each hooking of the weft array. The laid array is preferably transported to a stitch bonding or warp knitting means. In the embodiment of Fig. 1 laying means 2 comprises a beam pivoted at 3 and containing guide holes 13 for warp threads 5. The beam and the pivot are reciprocated by carriage 1. As the carriage moves from transport means 4 the tension in threads 5 holds the beam against stop 7 so that the beam is parallel to transport means 4a. The embodiment of Fig. 2 (not shown) is similar except that the thread laying beam, is normally held by springs (11) in an orientation bisecting the angle α between the thread transport means. As the carriage approaches a transport means 4, 4a a projection (12) of the laying beam strikes a stop (10, 10a), causing the laying beam to pivot against the action of the spring until it is aligned parallel with the transport means. In the embodiment of Fig. 3 the laying means comprises a plate 2 having thread guide slots 13'. Rails 14, 14a enclosing an angle α are mounted on the underside of the plate. Hence as the carriage travels towards the hooks of transport means 4a the tension in the threads 5 causes the point at which the orientation of each thread changes from vertical to horizontal to lie on a line 8 parallel to transport means 4a.