Patent ID: 6701765
Filing Date: 2004-03-09
Classification: B21F

Abstract:
A spring manufacturing apparatus for manufacturing a spring by feeding a wire to be formed into a spring out of an end portion of a wire guide, and forcibly bending, curving, or winding the wire by using a tool in a spring forming space near an end portion of the wire guide,comprising:a plurality of tools arranged to extend radially with respect to wires fed into the spring forming spaces and to be slidable toward the wires fed into the spring forming spaces; a rotating ring member for supporting the end portion of at least one of said tools to allow the end portion of at least one of said tools to simultaneously swing with respect to the wires fed out from the end portions of the wire guides; and a driving means for rotatably driving said rotating ring member at a predetermined angle around the wire fed out from the end portion of the wire guide.