Dispositif pour le formage en continu de corps creux en matières thermoplastiques

摘要

Hollow bodies such as bottles are blow molded from tubular plastic material produced along an axis defined in an extruder therefor. A plurality of molds supported on a mold carrier are driven by that carrier successively through a closed path which intersects that axis. As each mold is carried to the position where it intersects the axis of the extruder, the mold closes on a section of the plastic material to permit blowing thereof to the shape defined by the mold. At this time moreover that mold engages against an abutment fixed with respect to the extruder and imposes a relative motion on the extruder and mold carrier which holds that mold coaxial with the extruder axis until the next mold comes into coaxiality with that axis.