High-speed and high quality nail-making system

A high-speed and high-quality nail-making system comprising:

• an inner wheel, which is rotated in one direction by means of a motor and a power transmission unit and which clamps and transfers steel wire pieces, which are sequentially introduced thereinto;
• an outer wheel having an inside diameter greater than the outside diameter of the inner wheel, which is passively rotated and which is eccentrically disposed so as to press the steel wire pieces at a punching portion at which the outer wheel is positioned closest to the inner wheel;
• inner and outer wheel dies, which are mounted on an outer circumferential surface of the inner wheel and an inner circumferential surface of the outer wheel and which are positioned closest to each other at the punching portion so as to grip the steel wire pieces;
• a punching unit, which is rotated together with the inner wheel and which is configured such that punches thereof are linearly reciprocated by means of a cylindrical cam so as to punch front ends of the steel wire pieces gripped between the inner and outer wheel dies to thus form nail heads;
• and
• an ejector, which is disposed in a discharge space defined between the inner wheel and the outer wheel and which releases a clamp to unclamp and discharge the finished nail;
• and wherein the steel wire piece (6) is clamped between a lateral side surface (46b) of a support plate (46) fixed to the inner wheel (4) and an elastic portion (39) of each of the clamps (7), which is biased in a clockwise direction.