Patent ID: 6047453
Filing Date: 2000-04-11
Classification: B21F,H01F,Y10T

Abstract:
A air-core coil forming system comprising:a sheath peeling section including:a rotatable cylindrical cutting head having a through hole provided at a radial center portion thereof into which a sheathed wire is inserted, a blade portion for peeling a sheath of the sheathed wire, and a blade support member for supporting in a manner that the blade is brought into contact with the sheath by means of a centrifugal force produced when the cutting head is rotated;a motor directly connected with the cutting head for rotating the cutting head; anda rotary shaft provided in the motor such that a central axis thereof coincides with the through hole of the cutting head and having a hollowed structure into which the sheathed wire is inserted; anda coil forming section including:a shaft;a base member capable of revolving around the shaft and shifting in a radial direction of the shaft;a fixation member integrally provided on the base member and capable of clipping a peeled wire supplied from the sheath peeling section together with the shaft therebetween;a first urging member for urging the base member such that the fixation member moves toward the shaft;a second urging member for urging the base member opposite to the urging direction of the first urging member; anda rotation mechanism for rotating the shaft to wind the peeled wire therearound.