Patent ID: 9682504
Date: 2017-06-20
CPC Classifications: B29C

Claim:
1. An injection molding apparatus comprising: a heated manifold that receives an injection fluid material from an injection molding machine, the heated manifold routing the injection fluid to a fluid delivery channel that extends and delivers the injection fluid material under an injection pressure to a gate of a mold cavity, an actuator comprising an actuator housing containing a drive member interconnected to a valve pin having a drive axis in an arrangement such that the valve pin is drivable along the axis between an upstream fully gate open position and a downstream gate closed position, the actuator housing being mounted on a surface of the heated manifold, the actuator housing being spaced a selectable distance forming a gap between the actuator housing and the heated manifold, the apparatus including one or more heat convectors each heat convector comprised of: a heat conductive leg disposed within the gap, the leg being isolated from direct metal-to-metal contact with the actuator housing and mounted in heat conductive communication with the heated manifold, thus serving to maintain the actuator in a relatively cool condition relative to the heated manifold, and a heat conductive arm extending distally away from the gap such that heat is conducted from the leg to the arm and away from the actuator housing.