초록

A telescoped assembly of sleeves for supporting, sealing and insulating a floating manifold between mold plates or other abutments in an injection molding machine.

대표청구항 ▼

In a pressure molding machine having a floating manifold disposed between two spaced abutments, said manifold having at least one conduit communicating with and contacting a nozzle set in one of said abutments, means for sealing the manifold relative to said nozzle comprising: thermal expansion mani

In a pressure molding machine having a floating manifold disposed between two spaced abutments, said manifold having at least one conduit communicating with and contacting a nozzle set in one of said abutments, means for sealing the manifold relative to said nozzle comprising: thermal expansion manifold support assemblies disposed between the manifold and mating abutments, each thermal expansion assembly having a first expansion element in contact with said manifold and spaced from an adjacent abutment, and a second thermal expansion element in contact with a mating abutment, and spaced from said manifold, said second expansion element being a tubular body having a first flange extending radially outwardly from one end thereof and a second flange extending radially inwardly from an opposite end thereof, said first flange contacting said adjacent abutment at a first region of contact, said first expansion element having a pair of opposite ends and being seated in the second expansion element with one end of the first element contacting the second flange at a second region of contact, and an opposite end of the first element being free of contact with said second expansion element, said opposite end of the first element being in contact with the manifold, whereby compressive stress in said elements resulting from thermal expansion is distributed to both elements thereby precluding the tendency of said elements to buckle or collapse under stress while minimizing the transfer of heat to said abutments.