Machine for contact winding a plurality of individual yarns simultaneously.

摘要

- The subject of the invention is a machine for the simultaneous winding/laying-down-in-contact (contact winding) of a plurality of filaments (yarns) (F), comprising a portal frame (1) supporting a stage (7) carrying a winding/laying-down-in-contact head, which can move in X, Y, Z, at least one winding/laying-down head (T) mounted so as to move rotationally on the stage (7) about at least one vertical axis (8) and including a small winding/laying-down wheel (9), means for presenting, on the said small wheel, the filaments in at least two tangent sheets (plies) (F1, F2), means (48, 51; 55) for selectively entraining and cutting each filament, and bobbins (B) supplying the filaments (F), characterised in that the bobbins (B) are mounted on a fixed creel (C) and the filaments (F) are guided between the creel (C) and the head (T) by sets of guide pulleys (14, 15, 17, 19) arranged so as to limit the surface area swept by the filaments and to reduce jerks in the speed at which the filaments are paid out. - Application to the production of structures made of composite material.