Patent ID: 9533345
Date: 2017-01-03
CPC Classifications: B22C

Claim:
1. A core molding machine comprising: a core box having a pair of laterally separable dies; a sand filling device, having a blow head disposed under the core box, for filling the core box with core sand directed upward from the blow head; a frame member for holding a fixed die as one of the pair of dies; a first actuator for driving a movable die as the other of the pair of dies to move closer to or away from the fixed die; a second actuator for vertically driving the blow head to move closer to or away from the core box; and a rotary drive unit for rotating the movable die moved away from the fixed die by the first actuator; wherein the blow head has a sand blow chamber for guiding the core sand to the core box while being connected to the core box and a sand storage chamber communicating with the sand blow chamber; and wherein the sand filling device has a compressed air supply unit for supplying the sand storage chamber with a compressed air for blowing the core sand into the core box and an aeration air supply unit for supplying an aeration air for floating and fluidizing the core sand within the sand blow chamber.