A casting mold shaping apparatus is provided that includes: a pressing member for pressing charged casting sands in a molding space formed by a molding flask and a carrier plate placed on a squeezing table; a driving mechanism for performing driving so as to bring the pressing member and the squeezing table close to each other or separate that pressing member and the squeezing table from each other, the driving mechanism including an output unit that relatively moves along a direction of pressing the pressing member; an electric motor for driving the driving mechanism; and a pressure adjustment device for adjusting a force of the driving mechanism outputted to the output unit so as to decrease and causing the pressing member to generate a predetermined pressing force necessary for pressing the casting sands, are included.

A casting mold shaping apparatus is provided that includes: a pressing member for pressing charged casting sands in a molding space formed by a molding flask and a carrier plate placed on a squeezing table; a driving mechanism for performing driving so as to bring the pressing member and the squeezing table close to each other or separate that pressing member and the squeezing table from each other, the driving mechanism including an output unit that relatively moves along a direction of pressing the pressing member; an electric motor for driving the driving mechanism; and a pressure adjustment device for adjusting a force of the driving mechanism outputted to the output unit so as to decrease and causing the pressing member to generate a predetermined pressing force necessary for pressing the casting sands, are included.

A casting mold shaping apparatus is provided that includes: a pressing member for pressing charged casting sands in a molding space formed by a molding flask and a carrier plate placed on a squeezing table; a driving mechanism for performing driving so as to bring the pressing member and the squeezing table close to each other or separate that pressing member and the squeezing table from each other, the driving mechanism including an output unit that relatively moves along a direction of pressing the pressing member; an electric motor for driving the driving mechanism; and a pressure adjustment device for adjusting a force of the driving mechanism outputted to the output unit so as to decrease and causing the pressing member to generate a predetermined pressing force necessary for pressing the casting sands, are included.

A casting mold shaping method is provided which enables, in a three-stage squeeze step using an electric motor, quick and smooth switching from a second squeeze step to a third squeeze step. The casting mold shaping method includes: a first squeeze step of moving the pressing member toward a back surface of a pattern to an inside of a molding space; a second squeeze step of regulating an approach of the molding flask toward the pressing member side by the stopper device and moving the pattern and a pattern surface plate to the inside of the molding space; and a third squeeze step of releasing the regulation by the stopper device and moving the pressing member toward the back surface of the pattern to the inside of the molding space in a state where the movement of the output unit in the second squeeze step is continued.

A casting mold shaping method is provided which enables, in a three-stage squeeze step using an electric motor, quick and smooth switching from a second squeeze step to a third squeeze step. The casting mold shaping method includes: a first squeeze step of moving the pressing member toward a back surface of a pattern to an inside of a molding space; a second squeeze step of regulating an approach of the molding flask toward the pressing member side by the stopper device and moving the pattern and a pattern surface plate to the inside of the molding space; and a third squeeze step of releasing the regulation by the stopper device and moving the pressing member toward the back surface of the pattern to the inside of the molding space in a state where the movement of the output unit in the second squeeze step is continued.

A mold device includes a frame that is a vertical wall having a first surface that is a vertical surface to which a holding mechanism is mounted and supported only by the first surface. A fixed mold base supporting a fixed mold, one surface thereof fixed to the first surface of the frame, and a mobile mold base supporting a mobile mold, the mobile mold base held by the holding mechanism so that the mobile mold base moves closer to and away from the fixed mold base. The holding mechanism includes a rail fixed to the first surface, and a guide fit on the rail in such a way that the guide moves on the rail while the guide is fixed to the mobile mold base. The mobile mold base is supported by the holding means without using a tie bar, and cantilevered on the first surface via the holding mechanism.

A valve device (10) having a check valve mechanism (20) having a valve rod (21) and a closing element (22) disposed on one end of the valve rod (21) and intended for the compressed-air supply to a consumer (11), the valve device (10) further having an actuation mechanism (30) having a hydraulic cylinder (31), the piston (32) of the hydraulic cylinder (31) being firmly connected to the valve rod (21) and being hydraulically driven within the cylinder casing (33) of the hydraulic cylinder (31) in order to actuate the check valve mechanism (20). A control mechanism (40) for controlling the piston movement and a measuring mechanism (50) for detecting the piston position is comprised, a proportional-valve mechanism (60), which is controllable by the control mechanism (40) as a function of the piston position, being connected to the hydraulic cylinder (31) in a fluid-conducting manner. A molding machine and method for controlling a valve device are also disclosed.

A valve device (10) having a check valve mechanism (20) having a valve rod (21) and a closing element (22) disposed on one end of the valve rod (21) and intended for the compressed-air supply to a consumer (11), the valve device (10) further having an actuation mechanism (30) having a hydraulic cylinder (31), the piston (32) of the hydraulic cylinder (31) being firmly connected to the valve rod (21) and being hydraulically driven within the cylinder casing (33) of the hydraulic cylinder (31) in order to actuate the check valve mechanism (20). A control mechanism (40) for controlling the piston movement and a measuring mechanism (50) for detecting the piston position is comprised, a proportional-valve mechanism (60), which is controllable by the control mechanism (40) as a function of the piston position, being connected to the hydraulic cylinder (31) in a fluid-conducting manner. A molding machine and method for controlling a valve device are also disclosed.