The invention discloses a blow molding machine for bottle production, which comprises a frame, an extruder, a mold clamping mechanism, an air blowing mechanism, a cutting mechanism and a neck trimming mechanism. The mold clamping mechanism comprises a base, a first movable mold, a second movable mold, a double-head cylinder and a driving cylinder, and the first movable mold and the second movable mold are butted to form a mold cavity and a clamping cavity. The neck trimming mechanism comprises a first neck trimming cylinder, a second neck trimming cylinder, a mounting seat, a rotating sleeve rotatably connected to the mounting seat, a driving component for driving the rotating sleeve to rotate circumferentially, a connecting plate fixed at the bottom of the rotating sleeve, a fixed shaft fixed at one end of the connecting plate away from the rotating sleeve, and a circular knife fixed at the bottom of the fixed shaft. A fixed sleeve fixed with the mounting seat passes through the rotating sleeve, one end of the fixed sleeve close to the circular knife is through, the other end is closed, the through end of the fixed sleeve is hermetically connected with an inflatable bag folded in the fixed sleeve, the fixed sleeve is connected with a first air pump through a first air pipe, and the inflatable bag is inflated to form a cylindrical body with an annular groove formed on the side wall of the cylindrical body. The invention effectively improves the quality of bottles.
Area Code: CN
Application Number: CN201811604714.8
