Patent ID: 8870564

Claim:
A hot runner valve apparatus for an injection-molding machine comprising: a manifold provided with a resin path; a nozzle connected to one side of the manifold to receive a resin and guide the received resin to a cavity side of a mold, the nozzle having an exterior peripheral surface around which a heater is wound; and a driving means including an elevating element elevated by using at least one of hydraulic pressure, pneumatic pressure and a motor, wherein the nozzle includes a body provided with an installation cylindrical aperture passing through a center thereof, and an exit aperture having a decreased diameter compared to the installation cylindrical aperture at a lower side thereof, and the hot runner valve apparatus further comprises an elevating pin of said elevating element, one end of which is slidingly received within the installation cylindrical aperture and one side of which is connected to an elevating element, so that a lower end portion of the elevating pin is positioned inside the nozzle when the elevating pin is raised, and a lower surface of the elevating pin is in contact with the mold, and an upper end portion of the elevating pin is connected to the resin path so as to receive the resin and a lower end portion of the elevating pin is provided with a flow control tip while passing through an exit hole so that the received resin is injected to the cavity of the mold.