A MULTI-AXIAL YARN STRUCTURE FORMING MACHINE

摘要

PCT No. PCT/GB96/00238 Sec. 371 Date Feb. 9, 1999 Sec. 102(e) Date Feb. 9, 1998 PCT Filed Feb. 5, 1996 PCT Pub. No. WO96/24713 PCT Pub. Date Aug. 15, 1996In a loop holding mechanism (31), loop engaging pins (39) which are carried by pin blocks (38) are arranged successively to engage at a feed end (310) of the mechanism loop portions of yarns formed at opposite side edges of a multi-axial yarn structure being formed. The pin blocks (38) at each side of the mechanism (31) advance in abutting relationship along an advancement track (32) to a delivery end (311) of the mechanism (31) where they are returned along a return track (34) and again engaged in the successively formed loop portions. The pin blocks (38) are biased by biasing devices (48, 53) into abutting engagement with each other in the advancement track (32) to provide accurate control of the spacing between the pins (39) engaging the loop portions and are advanced along the advancement track (32) by a drive pinion which engages in turn each pin block (38) advanced to it to move the engaged pin block (38) an all the pin blocks (38) in the advancement track (32) in the direction of the delivery end (311) of the mechanism.