Supporting rod changing device

The utility model relates to the technical field of die equipment, in particular to a die-pin conversion device, which is arranged between an equipment machine table and a die and comprises an upper fixing plate, a lower fixing plate and a telescopic component, and the upper fixing plate and the lower fixing plate are respectively connected with the die and the equipment machine table. The telescopic assembly comprises a fixed outer frame, a telescopic plate, a reinforcing plate and a guide block, the telescopic plate, the reinforcing plate and the guide block are located in the fixed outer frame, a plurality of upper supporting rods matched with die supporting rod holes in number and distance are arranged on the upper fixed plate in a penetrating mode, and a plurality of lower supporting rods matched with equipment machine supporting rod holes in number and distance are arranged on the lower fixed plate in a penetrating mode. The lower end of the upper supporting rod and the upper end of the lower supporting