Casting device

A casting device including a fixed die and a movable die that approaches or separates from the fixed die and forming a cavity to obtain a cylinder block with the fixed die and the movable die, the casting device comprising:

• a bore formation core configured to form a cylinder bore in the cylinder block;
• a water jacket formation core surrounding the bore formation core from an outer peripheral side and configured to form a water jacket around the cylinder bore;
• an actuator configured to displace the bore formation core and the water jacket formation core integrally in a direction of getting close to or being separated from the cavity;
• a seal member disposed in a space between the bore formation core and the water jacket formation core, and configured to section the space into a close side part that is close to the cavity and a separation side part that is apart from the cavity;
• and
• a suctioning device configured to suction gas in the close side part through a flow path formed in the bore formation core,
• wherein the bore formation core includes a near part that faces the close side part and is always exposed from molten metal in the cavity, a far part that faces the separation side part, and a bore formation part that protrudes from the near part toward the cavity and is embedded in the molten metal in the cavity;
• and
• the flow path includes a first opening formed on an outer surface of the near part and a second opening formed on an outer surface of the far part and connected to the suctioning device, and the flow path exists above a virtual axial line that passes a center of the bore formation core and extends along a longitudinal direction of the bore formation core when the bore formation core is viewed from a side.