Patent ID: 7972127
Filing Date: 2011-07-05
Classification: B29C

Abstract:
1. A wedge lock system for injection molds comprising a mating core block and cavity block which move between an open position and closed position, each said block including a face, and in said closed position molten plastic may be injected between the faces of said core and cavity blocks to form a plastic injection mold product, said wedge lock system comprising: a forward protrusion in the core block which mates with a corresponding opening in the cavity block, said protrusion having a first lateral side and an opposite angled lateral side; a first cavity wedge, secured to the cavity block, situated opposite said first lateral side; a core wedge assembly including a core wedge piece positioned adjacent the first side of the protrusion and being connected by compressible attachment means which extends laterally through said protrusion to at least one floating puck, said at least one puck extending laterally outwardly from said angled side of the protrusion; a second cavity wedge secured to the cavity block having a mating angled surface to the angled side of the protrusion, which in said closed position, engages the angled side of said protrusion and urges said laterally outwardly extending at least one floating puck inwardly to compress said compressible attachment means and thereby urge said core wedge piece into firm contact with said first cavity wedge.