Conductive device for lead frame production line

The utility model discloses a conductive device for a lead frame production line, which is provided with a conductive support, two vertically through annular grooves are arranged at intervals along the length direction of the conductive support, a connecting sheet is erected at the upper part of each annular groove, and a rotating shaft which extends upwards and penetrates through one end of the connecting sheet is inserted in each annular groove in a sliding manner. The bottom of the rotating shaft is sleeved with a rotating shaft sleeve, the middle of the rotating shaft is sleeved with a torsion spring, the top of the rotating shaft is provided with a torsion spring torsion block used for controlling torsion of the torsion spring, the other end of the connecting piece is provided with a mercury slip ring extending downwards, and the bottom of the mercury slip ring is provided with a conductive wheel. A material belt product can pass through the space between the two conductive wheels, and the two long edges