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.

A modular barrel and screw assembly for use in injection molding including a barrel having a barrel body, a separate barrel injection portion and a separate barrel end cap, with the barrel end cap being removably connected to the barrel injection portion and the barrel injection portion being removably connected to the barrel body, and a screw assembly having a screw tip assembly removably connected to a screw portion, wherein an injection chamber having a shot volume is defined by the barrel injection portion, the barrel end cap and the screw tip assembly. The modular barrel and screw assembly enables servicing of the barrel injection portion, barrel end cap and/or screw tip assembly without requiring removal of the barrel body, and enables use of a plurality of alternative corresponding separate barrel injection portions, separate barrel end caps and tip assemblies that provide a plurality of different shot volumes.

A modular barrel and screw assembly for use in injection molding including a barrel having a barrel body, a separate barrel injection portion and a separate barrel end cap, with the barrel end cap being removably connected to the barrel injection portion and the barrel injection portion being removably connected to the barrel body, and a screw assembly having a screw tip assembly removably connected to a screw portion, wherein an injection chamber having a shot volume is defined by the barrel injection portion, the barrel end cap and the screw tip assembly. The modular barrel and screw assembly enables servicing of the barrel injection portion, barrel end cap and/or screw tip assembly without requiring removal of the barrel body, and enables use of a plurality of alternative corresponding separate barrel injection portions, separate barrel end caps and tip assemblies that provide a plurality of different shot volumes.

An apparatus for producing a foam-molded product, including a plasticizing cylinder which has a plasticization zone for plasticizing and melting a thermoplastic resin into a molten resin and a starvation zone for allowing the molten resin to be in a starved state and which is formed with an introducing port for introducing a physical foaming agent into the starvation zone; and a physical foaming agent supply mechanism which supplies the physical foaming agent to the plasticizing cylinder via the introducing port, wherein the introducing port is open at all times, and the physical foaming agent having a fixed pressure is continuously introduced into the starvation zone from the physical foaming agent supply mechanism via the introducing port during the producing of the foam-molded product.

An apparatus for producing a foam-molded product, including a plasticizing cylinder which has a plasticization zone for plasticizing and melting a thermoplastic resin into a molten resin and a starvation zone for allowing the molten resin to be in a starved state and which is formed with an introducing port for introducing a physical foaming agent into the starvation zone; and a physical foaming agent supply mechanism which supplies the physical foaming agent to the plasticizing cylinder via the introducing port, wherein the introducing port is open at all times, and the physical foaming agent having a fixed pressure is continuously introduced into the starvation zone from the physical foaming agent supply mechanism via the introducing port during the producing of the foam-molded product.

A method for detachably attaching a linking unit, including an end with a hole and a slit, to a mold, the method comprising inserting a first attachment member connected to the mold through the hole; and inserting a second attachment member connected to the mold through the slit, wherein the linking unit is detached from the mold by moving the linking unit in a direction opposite to a direction in which the slit is formed in a state where the first attachment member is disconnected from the mold and the second attachment member remains connected to the mold.

A method for detachably attaching a linking unit, including an end with a hole and a slit, to a mold, the method comprising inserting a first attachment member connected to the mold through the hole; and inserting a second attachment member connected to the mold through the slit, wherein the linking unit is detached from the mold by moving the linking unit in a direction opposite to a direction in which the slit is formed in a state where the first attachment member is disconnected from the mold and the second attachment member remains connected to the mold.

An injection molding system includes an injection molding apparatus, an actuator that moves a mold between a first position and a second position, wherein the second position is different from the first position and injection processing is performed at the second position, a linking unit that links the actuator and the mold, wherein the improvement to the linking unit includes a rotation unit that rotates around a predetermined axis based on a change in a position of the mold along a first direction that is different from a second direction that is based on the first position and the second position.

An injection molding module for performing a series of injection molding actions, includes a robotic system. The molding module in addition includes a series of anchoring members for fixing at least a portion of the robotic system at each location where an injection molding action takes place.

An injection molding module for performing a series of injection molding actions, includes a robotic system. The molding module in addition includes a series of anchoring members for fixing at least a portion of the robotic system at each location where an injection molding action takes place.