Injection molding machine

Claim 1

In an injection molding machine having a rotary indexing table for supporting a plurality of mold parts thereabout and in which a vertical standard extends through the table defining an axis about which the table turns and forms a support structure for the molding machine, the improvement in a rotary fluid manifold for applying heating and cooling fluids to the die parts supported on such table, comprising means defining an outer sleeve having an inside cylindrical opening extending axially therethrough, means mounting said outer sleeve on said table for rotation therewith with said standard extending through said opening, means in said outer sleeve at said cylindrical opening forming first and second axially spaced annular grooves, means in said outer sleeve defining passages leading into said grooves and providing connection means by which heating and cooling fluids may be connected to such mold parts for flow therethrough, a tubular inner sleeve having an inside surface mounted on and fixed to said standard and having an outer cylindrical surface in mating engagement with the said inside cylindrical surface of said outer sleeve and closing said annular grooves thereby defining corresponding first and second annular flow passages between said sleeves, means in said sleeves sealing said passages one from the other, and means in said inner sleeve defining an inlet passage leading into one of said annular passages and an outlet passage leading into the other of said annular passages by means of which such fluid may be applied to the die parts.