WINDING MACHINE FOR HELICAL COIL AND WINDING METHOD THEREOF

摘要

PURPOSE:To hold the terminal of a wire rod inserted into the slit of a bobbin, to turn a sleeve as it is and to transfer operation to winding operation by rotating an internal shaft in the winding section of the bobbin under the state in which the bobbin is sustained to the external sleeve having double structure. CONSTITUTION:A shaft 70 is energized in one direction of rotation by a spring 80, and can be resolved in the opposite direction only by an angle within the range of a groove 55 in which a pin 75 can be moved. A protruding section 71 is inserted to a winding section 12 and a bobbin 10 is installed to the shaft 70, and the protrusions 54 of a sleeve 50 are fitted to the slits 16 of the bobbin 10. The shaft 70 is turned at approximately 90 deg. against the spring 80 by forward moving a driver 90 and engaging a pin 91 with the pin 75 and rotating the driver, and the terminal of a wire rod 20 is inserted into the slit 16 and the driver 90 is retreated, thus holding and sustaining the wire rod 20 between the winding section 12 and the protruding section 71 so as not to be slipped off from the bobbin 10 easily. Accordingly, the size and shape of the hooked section of the tip of the wire rod can be molded uniformly, thus automating operation while reducing the dispersion of the electrical characteristics of a helical coil.