CONTINUOUS KNITTING MACHINE OF SHAPED MATERIAL COMPRISING COMPOSITE MATERIAL BY THREE-DIMENSIONAL KNITTING

摘要

The machine is of the type comprising rods defining the volume of the section element and extending in the longitudinal direction of the latter and a knitting head depositing threads around the rods in a direction perpendicular to the latter. The rods are thin hollow rods (12). A die (9) maintains the hollow rods in a fixed position parallel to each other in a configuration which corresponds to the cross-sectional shape of the desired section element. Feed devices (7, 8) feed the longitudinal threads of the section element through the hollow rods (12). A device (15) is provided for retaining one end (12a) of the threads issuing from the rods in an identical configuration. Two knitting heads (16, 17) of known type deposit threads in two planes which are orthogonal and perpendicular to the rods (12) in the vicinity of the ends of the latter. Devices (15, 5) are provided for continuously displacing the threads issuing from the rods as the threads are deposited by the knitting heads. A device (5) is provided for conveying the knitted section element to a resin-impregnating station (21) and to a device (22) for hardening the resin and to a severing device for severing the section element at the desired length.