DEVICE FOR ADJUSTING THE THICKNESS OF A PREFORM IN AN EXTRUSION BLOW-MOULDING MACHINE

摘要

The invention concerns an extrusion blow-moulding machine for producing containers from a tubular preform wherein the variation in the preform thickness is obtained by moving at least a core (7) relatively to a die (6) using a rotating electric motor (25) acting on the means (12) for reducing the motor effort and transforming the rotating movement into a linear movement, which means consist of a bevelled slide.