Secondary stamping die for lower sealing head of fire extinguisher

The utility model relates to a secondary stamping die for a lower sealing head of a fire extinguisher and belongs to the technical field of dies. The stamping die is composed of an upper die and a lower die, the upper die comprises an upper connecting base and an upper die block, a die groove is formed in the center of the bottom of the upper die block, and supporting point stamping grooves are annularly and evenly distributed in the bottom of the die groove; the lower die comprises a lower connecting base and a punch, and a punching block corresponding to the supporting point punching groove is arranged on the top end face of the punch. According to the stamping die, the quincunx-shaped lower end socket can be stamped through cooperation of the punch and the die groove, the supporting point stamping groove is matched with the stamping block to stamp the supporting point on the lower end socket, and therefore the lower end socket can support a fire extinguisher bottle body through the stamped supporting point