Abstract: A valve device includes a control device adapted to control a valve without being supplied with electricity. The control device includes at least one rotatable control cam having an outer periphery with a concave and convex shape, and a driving device adapted to rotate the control cam only in a first rotational direction, out of the first rotational direction and a second rotational direction opposite from the first rotational direction, by being supplied with a pressurized medium. The valve is placed such that a switch portion comes in contact with the outer peripheral portion of the control cam, in order that the valve is opened and closed by the control cam being rotated.

Abstract: A valve device includes a control device adapted to control a valve without being supplied with electricity. The control device includes at least one rotatable control cam having an outer periphery with a concave and convex shape, and a driving device adapted to rotate the control cam only in a first rotational direction, out of the first rotational direction and a second rotational direction opposite from the first rotational direction, by being supplied with a pressurized medium. The valve is placed such that a switch portion comes in contact with the outer peripheral portion of the control cam, in order that the valve is opened and closed by the control cam being rotated.

Abstract: A seal device includes a medium passage that sends a heating medium to a sealing units, the medium passage includes a heating medium passage portion for sending a heating medium to said communication part so as to heat the pressing part, a cooling medium passage portion for sending a cooling medium to the communication part so as to cool the pressing part, and a passage switch unit that switches between a state in which the heating medium passage portion and the communication part are connected, and a state in which the cooling medium passage portion and the communication part are connected.

Abstract: A sealing device is provided which is capable of a two-step holding operation with the use of a linear solenoid. The sealing device includes a stopping mechanism for stopping a movement of a movable part that forms the linear solenoid when the linear solenoid is driven at a predetermined midway point between a start point and an end point after the nozzle part has been moved from the waiting position to the stop position, and for releasing the movable part from a stop to allow the movable part to move again and reach the end point after the nozzle part has been returned from the stop position to the waiting position.

Abstract: A seal device includes a medium passage that sends a heating medium to a sealing units, the medium passage includes a heating medium passage portion for sending a heating medium to said communication part so as to heat the pressing part, a cooling medium passage portion for sending a cooling medium to the communication part so as to cool the pressing part, and a passage switch unit that switches between a state in which the heating medium passage portion and the communication part are connected, and a state in which the cooling medium passage portion and the communication part are connected.

Abstract: The present invention provides sealing device which is capable of a two-step holding operation with the use of a linear solenoid. The sealing device includes a stopping mechanism for stopping a movement of a movable part that forms the linear solenoid when the linear solenoid is driven at a predetermined midway point between a start point and an end point after the nozzle part has been moved from the waiting position to the stop position, and for releasing the movable part from a stop to allow the movable part to move again and reach the end point after the nozzle part has been returned from the stop position to the waiting position.