Patent ID: 6139790
Filing Date: 2000-10-31
Classification: B29C,Y10S

Abstract:
Equipment for molding products from a pre-heated parison of thermoplastics material, comprising:at least two mold sections having at least one mold element, said at least two mold sections being positionable to encompass the parison and shape and cool the parison, wherein:each of said at least two mold sections is supported by a reciprocating carrier part,each mold section of said at least two mold sections comprises a cooling circuit for cooling said mold section, an orifice and a network of channels for conducting gas to and from said orifice, andat least one of said at least two mold sections comprises a first plate affixed to said carrier part on one side of said first plate; anda mold plate supported by an other side of said first plate, said mold plate having said at least one mold element mounted thereon, and said first plate and said mold plate having mutually cooperating contact surfaces in contact with each other provided with a sufficient roughness and flatness so as to provide for tightness and heat transfer between said contact surfaces;wherein said cooling circuit of said at least one of said two mold sections provided in said first plate so as to indirectly cool said mold plate and said at least one mold element on said mold plate; andwherein said network of channels for conducting gas to and from said orifice of said at least one of said two mold sections comprises channels in said first plate in communication with channels in said mold plate.