A mold replacement method that can contribute to simplification of unloading a fixed mold and a movable mold when the fixed mold and the movable mold are replaced. A mold replacement method includes coupling a fixed mold to a movable mold in a vertically divided molding machine, releasing a coupled state between the movable mold and a movable mold equipment base, rotating the fixed mold and the movable mold by a rotating mechanism for rotating a fixed mold equipment base, and disposing the movable mold above the fixed mold, releasing the coupled state between the fixed mold and the fixed mold equipment base, and unloading the fixed mold and movable mold from a fixed mold equipment base while a protrusion protruding outward from the movable mold is being supported by a fork of a lifting and lowering device.

A conveyance apparatus for conveying a mold into an injection molding machine includes a frame configured to form a supporting plane for supporting the mold, and an actuator configured to move the mold along the supporting plane between a first position inside the injection molding machine and a second position different from the first position, wherein the improvement to the conveyance apparatus includes the actuator being located below the supporting plane in a vertical direction; and a linking unit configured to link the mold and the actuator, wherein the linking unit is connectable to a side surface of the mold, wherein, in a state where the mold is at the second position, at least a part of the actuator is closer to the injection molding machine than the side surface of the mold in a conveying direction where the actuator moves the mold.

An injection molding system including an injection molding apparatus and a conveying apparatus for conveying a mold with respect to the injection molding machine, the conveying apparatus including a support member for supporting a bottom of the mold, and a guide member located on a side of the mold for guiding the mold conveyed by the conveying apparatus, wherein the improvement to the conveying apparatus includes an adjustment member for adjusting a position of the guide member in a direction intersecting a direction of conveyance of the mold by the conveying apparatus independently from a position of the supporting member.

An injection molding unit includes a main unit and an optional unit, the main unit accommodating a first injection molding machine that molds an integrated product by injecting a first molding material into a cavity which is defined by a lower die and an upper die and in which an insert member is disposed. The optional unit includes at least one of a member molding unit that accommodates a second injection molding machine that molds the insert member by injecting a second molding material or a press molding machine that molds the insert member in press molding, and a robot unit that accommodates a robot that performs placement operation of placing the insert member in the cavity or transport operation of transporting the integrated product molded by the first injection molding machine. The main unit is so configured that the optional unit is attachable thereto and detachable therefrom.

An injection molding apparatus includes: a first fixed mold attachment and detachment unit configured to attach and detach a first fixed mold; a second fixed mold attachment and detachment unit configured to attach and detach a second fixed mold; a first movable mold attachment and detachment unit configured to attach and detach a first movable mold; a first injection unit configured to inject a first molding material through a first gate opening of the first fixed mold; a second injection unit configured to inject a second molding material through a second gate opening of the second fixed mold; and a position changing unit configured to change a position of the first movable mold attachment and detachment unit such that the first movable mold is located at a position facing the first fixed mold or the second fixed mold. The position changing unit includes: a driving unit, a rotation shaft member configured to rotate by the driving unit, and a rotation disk coupled to the rotation shaft member and provided with the first movable mold attachment and detachment unit. The rotation disk is configured to rotate about a rotation axis of the rotation shaft member, and a flow path that communicates with the first movable mold and through which a medium flows is formed in the rotation shaft member.

A refrigerator door includes an outer plate that is made of metal and defines a front surface of the refrigerator door, a door liner that is coupled to the outer plate and defines a rear surface of the refrigerator door, an insulator disposed in a space defined between the outer plate and the door liner and made of polyurethane, and a foam cushion disposed at a rear surface of the outer plate and configured to expand or contract based on a change of a volume of the insulator.

An injection molding system and method that injects resin into a mold and conveys at least one mold, wherein the improvement to the injection molding system and method includes driving a support member that supports the mold, wherein the mold is conveyed based on a movement of the support member between a first position where the injection nozzle injects the resin into the mold and second position different from the first position.

In the present invention, constructed is a highly reliable system that does not allow unforeseen conditions to occur in the remote diagnosis of a clamp device. All combinations of status of a state detection switch mounted on a clamp device are anticipated in advance by a recursive method, and the states are defined with no omissions. A control unit 9 includes: a main body memory 9c that stores the ON/OFF state of a state switch together with the status of an injection molding machine main body, the clamp status and time information; and a main body communication unit 9d which is capable of short-range wireless communication. A message diagnosing a failure is stored in a smartphone 12 for all combinations of the ON/OFF state of the state detection switch for each of the following cases: whether in mold replacement mode or not; and whether a clamp device is in a clamped state or an unclamped state, or in a state other than the forgoing. The history of the ON/OFF state of the state detection switch with respect to the status of the main body and the clamp status is read from the main body memory 9c by wireless communication, and a corresponding message is displayed.

A refrigerator door includes an outer plate that is made of metal and defines a front surface of the refrigerator door, a door liner that is coupled to the outer plate and defines a rear surface of the refrigerator door, an insulator disposed in a space defined between the outer plate and the door liner and made of polyurethane, and a foam cushion disposed at a rear surface of the outer plate and configured to expand or contract based on a change of a volume of the insulator.

A mould lifting device is suitable for use in lifting and rotating a middle mould. At each of two lateral surfaces of the middle mould is provided a pivot portion. The mould lifting device includes: a platform, two longitudinal guide assemblies, two transmissions, a power assembly, two lifting members, two push members, two pivot arms, and two covers. When the pivot arms lift and rotate the middle mould, the lifted portion of the covers will not be pushed by the lifting portions of the lifting members anymore, and the covers will naturally pivot downward by gravity to make the cover portions cover the openings of the restricting grooves, which prevents the disengagement of the pivot portions of the middle mould from the restricting grooves, and thus improving the stability and security of the middle mould during the course of lifting and rotation.