The utility model discloses a bottom molding block mechanism for an injection blow molding machine, comprising a lower mold plate and an upper mold plate. A lower blowing block is arranged on the lower mold plate, a lower neck block is arranged in the lower blowing block, a horizontally sliding bottom molding block is movably arranged at one end of the lower blowing block away from the lower neck block, a bottom molding block insert is arranged at the bottom end of the bottom molding block, and an inclined hole is arranged in the bottom molding block insert. An upper blowing block is arranged on the upper mold plate, an upper neck block is arranged on the upper blowing block, a drive inclined plate is arranged at the tail end of the upper blowing block, the lower end of the drive inclined plate is inserted into the inclined hole of the bottom molding block insert, and the distance from the bottom of the drive inclined plate to the tail end face of the upper blowing block is greater than the distance from the upper part of the drive inclined plate to the tail end face of the upper blowing block. This structure ensures that the product will not collide with the bottom molding block and has a long service life.

Country Code: CN

Application Number: CN201620991035.0