Patent ID: 7338626
Filing Date: 2008-03-04
Classification: B29C

Abstract:
1. A rubber injection molding apparatus for simultaneously molding a plurality of work parts in separate molds using a single press machine, said apparatus comprising: a rubber injection press machine including a press bed and a vertically oriented press ram supported for reciprocating movement in a generally vertical path toward and away from said press bed; a plurality of separate and distinct injection molds positioned between said press bed and said press ram, each of said molds having two mold halves joining one another along a parting line interface with a mold cavity defined between each of said mold halves; a supply of molten rubber communicating with said press ram; a clamping mechanism directly responsive to the vertical motion of said press ram for compressing said plurality of molds in a direction normal to each of said parting lines; and each of said molds being horizontally arrayed relative to one another such that each of said parting lines are disposed generally parallel to the movement of the press ram, whereby the generally vertical motion of said press ram is converted into a generally horizontal clamping force by said clamping mechanism and thereby simultaneously compressing all of said molds together.