Patent ID: 7140862
Filing Date: 2006-11-28
Classification: B29C

Abstract:
1. A removable degating insert adapted from use within an injection molding system in communication with a source of pressurized molten plastic to form molded plastic parts having a pair of die halves cooperating to define a mold cavity and a runner to direct molten plastic from the source to the mold cavity, said removable degating insert comprising: a base including mounting ears adapted to facilitate removable attachment to a die half of a mold system where wherein the uppermost surface of the base is flush with the surface of the die half to which said base is removably attached; a body fixed to said base including a pair of opposed surfaces that define predetermined relief angles relative to said base and a gate flow passage extending therethrough, said gate flow passage including an inlet defined within one of said opposed surfaces and adapted to receive molten plastic from a runner of a mold system and an outlet defined within the other of said opposed surfaces adapted to distribute molten plastic to a mold cavity of a mold system, said outlet including an edge surface extending in a direction generally opposite that of a molded part upon ejection from a mold cavity, wherein said gate flow passage tapers inwardly from said inlet to said outlet and said edge surface forms an acute angle relative to said gate flow passage to define a shearing edge point adapted to separate the finished molded part within a mold cavity from the cooled excess material within said gate flow passage.