The present invention relates to fiber winding machine, and is especially the swinging mechanism of fiber winding machine. The present invention includes a yarn arranging roller assembly set on the yarn discharging end on the frame, an upper yarn pressing roller set inside the yarn feeding end of the frame, a yarn separating roller assembly set between the upper yarn pressing roller and the yarn arranging roller assembly, and a lower yarn pressing roller set between the yarn separating roller assembly and the yarn arranging roller assembly. The yarn arranging roller assembly consists of a yarn arranging roller and a yarn arranging roller sleeve set on the yarn arranging roller and rotation fitting with the yarn arranging roller, and the yarn arranging roller has ends fixed to the frame. The present invention has excellent yarn expanding effect, and can meet the requirement of making composite material member in aeronautical and astronautical industry. |