An apparatus for low-pressure casting of metallic products includes at least one forming die which is provided with a cavity which is adapted to receive a molten metallic mass. The forming die includes at least two parts which can move between an open configuration, in which they are mutually spaced apart, and a closed configuration, in which together they define the cavity, the forming die being supported and moved by a manipulator with multiple degrees of freedom, which has movable parts that are actuated by electric motor components driven by a control unit.

An apparatus for low-pressure casting of metallic products includes at least one forming die which is provided with a cavity which is adapted to receive a molten metallic mass. The forming die includes at least two parts which can move between an open configuration, in which they are mutually spaced apart, and a closed configuration, in which together they define the cavity, the forming die being supported and moved by a manipulator with multiple degrees of freedom, which has movable parts that are actuated by electric motor components driven by a control unit.

A flaskless molding machine includes: an upper sand tank storing the mold sand to be supplied to the upper molding space; a first lower sand tank storing the mold sand to be supplied to the lower molding space, and having a first communication port for discharging the stored mold sand; a second lower sand tank having a second communication port capable of communicating with the first communication port of the first lower sand tank, and storing the mold sand supplied from the first lower sand tank and to be supplied to the lower molding space; at least one first guide member extending in a vertical direction, and guiding the upper flask, the lower flask and the second lower sand tank in the vertical direction; and a second guide member extending in the vertical direction, and guiding the first lower sand tank in the vertical direction.

A flaskless molding machine includes: an upper sand tank storing the mold sand to be supplied to the upper molding space; a first lower sand tank storing the mold sand to be supplied to the lower molding space, and having a first communication port for discharging the stored mold sand; a second lower sand tank having a second communication port capable of communicating with the first communication port of the first lower sand tank, and storing the mold sand supplied from the first lower sand tank and to be supplied to the lower molding space; at least one first guide member extending in a vertical direction, and guiding the upper flask, the lower flask and the second lower sand tank in the vertical direction; and a second guide member extending in the vertical direction, and guiding the first lower sand tank in the vertical direction.

A casting device includes a bore formation core and a water jacket formation core. When a cavity is formed, gas existing in a space between both cores is suctioned through a flow path formed in the bore formation core under operation of a suctioning device. When the bore formation core is viewed from a side, this 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.

A method of bonding a mini-core to a surface of a core is provided. The method includes providing the mini-core with an attachment device that includes a protrusion of a surface of the mini-core, dipping the protrusion into a supply of paste to transfer a fixed quantity of paste to the protrusion and affixing the protrusion to the surface of the core with the fixed amount of paste interposed between the surface and the protrusion.

A method of bonding a mini-core to a surface of a core is provided. The method includes providing the mini-core with an attachment device that includes a protrusion of a surface of the mini-core, dipping the protrusion into a supply of paste to transfer a fixed quantity of paste to the protrusion and affixing the protrusion to the surface of the core with the fixed amount of paste interposed between the surface and the protrusion.

A casting apparatus according to the present disclosure includes an upper frame, a lower frame, a main link member, a sub-link member and a lifting/lowering mechanism. The upper mold is attached to the upper frame. The lower frame is disposed in parallel with the upper frame. The lower mold is attached to the lower frame. A top end part of the main link member is rotatably connected to the upper frame and a bottom end part thereof is rotatably connected to the lower frame. The sub-link member is disposed in parallel with the main link member, the top end part thereof is rotatably connected to the upper frame and the bottom end part thereof is rotatably connected to the lower frame. The lifting/lowering mechanism causes the sub-link member to lift or lower with respect to the main link member.

A casting apparatus according to the present disclosure includes an upper frame, a lower frame, a main link member, a sub-link member and a lifting/lowering mechanism. The upper mold is attached to the upper frame. The lower frame is disposed in parallel with the upper frame. The lower mold is attached to the lower frame. A top end part of the main link member is rotatably connected to the upper frame and a bottom end part thereof is rotatably connected to the lower frame. The sub-link member is disposed in parallel with the main link member, the top end part thereof is rotatably connected to the upper frame and the bottom end part thereof is rotatably connected to the lower frame. The lifting/lowering mechanism causes the sub-link member to lift or lower with respect to the main link member.

A casting apparatus includes an upper frame to which an upper mold is attached, a lower frame to which a lower mold is attached, a first hydraulic actuator, a hydraulic unit, a first main link member, a first sub-link member and a rotation actuator, and the upper frame, the lower frame, the first main link member and the first sub-link member constitute a first parallel link mechanism. The hydraulic unit causes the electric motor to operate at a predetermined number of revolutions when performing mold opening or mold closing and causes the electric motor to operate at a limit number of revolutions smaller than the predetermined number of revolutions when not performing mold opening or mold closing.