Patent ID: 8288676

Claim:
A nut supply apparatus to a bonding machine comprising a nut send-out port provided at a terminal end of a supply chute inclined downward so that a plurality of nuts may be supplied continuously in parallel in a same direction, and a holding pin for piercing and holding through the nuts protruded at a front end of a guide rod disposed movably back and forth in an oblique downward direction while intersecting with the nut send-out port, by penetrating through screw holes of the nuts supported at the nut send-out port, wherein when the guide rod moves forward in an oblique downward direction, and the leading end of the holding pin approaches and moves to a bonding position of the bonding machine, the nuts held on the holding pin are supplied by fitting with a positioning pin provided at the bonding position, the supply chute is composed of an inclined chute inclined obliquely downward, having a nut send-in port at its upper end for sending in the bonding side of the nuts in an upward position, and a curved chute coupled to the lower end of the inclined chute and curved like an arc obliquely downward, a nut support mechanism is disposed at the nut send-out port disposed at a terminal end of the curved chute, for supporting the nuts being forwarded so that their bonding side may be in an oblique downward position nearly orthogonal to the axial line of the guide rod, and the inclined chute, the curved chute, the guide rod, and driving means for moving the guide rod back and forth in an oblique downward direction are mounted on a stand installed rotatably on a support member by way of a horizontal support shaft, the support member is coupled and fixed to the bonding machine, and when the guide rod moves forward obliquely downward, the holding pin penetrates through the screw holes of the nuts supported on the support mechanism, and pieces through and holds the nuts, the leading end of the holding pin approaches and moves to the leading end of the positioning pin, and the screw holes of the nuts held on the holding pin are supplied in fitting with the positioning pin.