Patent ID: 6318988
Filing Date: 2001-11-20
Classification: B29C,B29L,Y10S

Abstract:
A tool for producing molded parts with contours from a parison of deformable material, comprising:a female die; anda male die;said male die and said female die to be respectively moved toward each other in an axial direction and between which is placed a parison of deformable material to be molded;said female die having a cavity formed therein and a double-stepped mold region, said double-stepped mold region having a first female die edge, an antechamber region disposed from said first female die edge in said axial direction and in a direction toward said cavity, and a second female die edge bounding said antechamber region and disposed below said first female die edge in said axial direction, said double-stepped mold region forming an antechamber between said first female die edge and said second female die edge;said male die having a first male die edge, a second male die edge, a male die pressure area bounded by said first male die edge and said second male die edge and corresponding to said antechamber region, and a double-stepped region engaging said double-stepped mold region for:forming a first squish edge with said first female die edge and said first male die edge to fix the deformable material and to form at least one of a pressure-tight and vacuum-tight cavity in the deformable material when said female die and said male die are initially moved toward each other in said axial direction;subsequently forming a second squish edge with said second female die edge and said second male die edge when said female die and said male die are moved further together; andsecurely holding the deformable material between said antechamber region and said male die pressure area upon closing said female die and said male die.