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A rotary blow molding machine includes a rotor mounted on a horizontal driving shaft, a recovery hopper, an ejector mechanism, and mold stations mounted on the outer periphery of the rotor, which mold stations are radially disposed and circumferentially equally spaced, the mold stations each carryin

A rotary blow molding machine includes a rotor mounted on a horizontal driving shaft, a recovery hopper, an ejector mechanism, and mold stations mounted on the outer periphery of the rotor, which mold stations are radially disposed and circumferentially equally spaced, the mold stations each carrying thereon a split mold unit capable of opening and closing in the direction of the width of the outer peripheral surface of the rotor by a mold opening/closing mechanism, a mold clamping mechanism and a flash blow-pipe, the said split mold unit having a mold-release mechanism. It is so constructed as to produce blow moldings successively continuously at high speed and completely automatically during a single rotation of the mold stations on and along the same circular rotation track.

대표청구항 ▼

A rotary blow molding machine comprising a rotor mounted on a horizontal driving shaft; mold stations mounted on the outer periphery of said rotor so as to be radially disposed and circumferentially equally spaced, said mold stations each carrying thereon a split mold unit capable of opening and clo

A rotary blow molding machine comprising a rotor mounted on a horizontal driving shaft; mold stations mounted on the outer periphery of said rotor so as to be radially disposed and circumferentially equally spaced, said mold stations each carrying thereon a split mold unit capable of opening and closing in the direction of the width of the outer periphery surface of said rotor; flash blow-pipes rotatable with said mold stations, a tip end of each of said flash blow-pipes facing between said mold stations, said mold stations moving on a circular rotation track described by the center of each of said split mold units, said flash blow-pipes being adapted to guide and hold a parison extruded from a die head disposed adjacent to said track, said flash blow-pipes also being adapted to blow off a portion of the scrap parison, which is produced when closing and clamping said split mold units, to a position outside said circular rotation track; ejector means mounted in a wedged form between said split mold units within an area on said circular rotation track within which said split mold units are kept open; mold-release means on said split mold units for releasing a molded article from said split mold units and operable adjacent to said ejector means when said split mold units are open, said ejector means receiving a molded article released by said mold-release means from one mold half of said split mold unit in open state and discharging it to a position outside said circular rotation track.