Patent ID: 7963761
Filing Date: 2011-06-21
Classification: B29C,B29K

Abstract:
1. An injection molding apparatus for high-gloss products comprising: a first mold supported on a first fixed plate; a second mold assembled to the first mold to form a cavity and having a guide portion; a third mold installed so as to move up and down with respect to the second mold and assembled to and disassembled from the first and second molds; and a heating and cooling portion heating or cooling the second mold during injection molding of a product using the first and second molds, wherein the heating and cooling portion comprises a cooling unit and a heating unit, the cooling unit formed by the second and third molds at a side corresponding to the cavity formed by the first and second molds to absorb and exhaust a heat exchange fluid for cooling, and the cooling unit comprising a pumping portion including a cylinder portion formed on a rear surface of the second mold and a piston portion installed at the third mold and coupled to the cylinder portion, and a reservoir tank connected to the cylinder portion by a supply pipe and exhaust pipe and supplying and exhausting the heat exchange fluid to and from the cylinder portion.