An injection molding machine is equipped with a screw having a spline shaft formed with a spline on an outer circumferential surface, a bush having a spline hole formed with a spline on an inner circumferential surface, a linear motion motor for moving the bush in an axial direction of the screw, a rotational motion motor for rotating the bush about an axis of the screw, and a motor control unit which, in the case of fitting the spline shaft in the spline hole, controls the linear motion motor to advance the bush in a direction approaching the screw in a state that the bush and the screw are separated, and which controls the rotational motion motor to rotate the bush when the acquired output torque becomes equal to or larger than a first predetermined torque.

A method of estimating a normal vector to an attachment mounted to an approach frame of an apparatus for taking out a molded product and a normal vector to a die mounted to a molding machine is provided. A normal vector to a take-out head is estimated through computation using a coordinate/depth determination section and a normal vector computation section on the basis of depth data or coordinate data on three mounting members. Three or more extending portions are specified from the image, the extending portions being each a part of a fixed die or a movable die or a part of a surrounding component and extending in a direction that coincides with the open direction for the dies. A normal vector to the die is estimated through computation on the basis of the depth data or coordinate data on the specified extending portions.

An injection molding machine includes, on a machine base, a mold having a stationary platen, an injection unit having a nozzle for injecting a molten material into the mold, a nozzle touch mechanism for pressing the nozzle against the mold, and a connecting member for connecting the nozzle touch mechanism and the stationary platen. The connecting member has a support base and an arm part, and also has a first connecting part to be connected to the nozzle touch mechanism on the support base, and a second connecting part to be connected to the stationary platen on an upper part of the arm part. The injection molding machine is configured so that a nozzle touch force is transmitted to the nozzle touch mechanism via the stationary platen and the connecting member. The second connecting part of the connecting member is disposed to be rotatable in a direction along a moving direction of the injection unit.

A liquid injection molding apparatus is provided. The liquid injection molding apparatus comprises a mold assembly; a clamping unit; an injector including a barrel; a feed screw concentrically located in the barrel; and a motor having a drive shaft removably coupled to the feed screw via a bayonet connector.

An apparatus includes a first flow path member configured to define a first section of a flow path, a second flow path member configured to define a second section of the flow path, and a valve unit configured to suppress backflow in the flow path. The first section and the second section are connected via the valve unit. The valve unit comprises a displaceable valve body and a first valve seat portion. The first valve seat portion is configured to close the flow path in a case where the valve body abuts. The first valve seat portion is configured to abut on the first flow path member and is made of a material having higher hardness than that of a material constituting the first flow path member.

A mold for an injection molding system including an injection molding machine, a conveying apparatus configured to convey a mold to a molding operation position in the injection molding machine, and a driving unit configured to provide power for moving the mold, the mold including a fixed mold, a movable mold, and a clamping plate fixed to the fixed mold, wherein the improvement to the mold includes a first attachment area for transmitting the power from the driving unit to the mold is provided on the clamping plate and in an extending portion that extends downward from the fixed mold or on the clamping plate and in a protruding portion that protrudes from the fixed mold in a conveyance direction of the mold and located lower than a middle of the clamping plate.

A shut-off nozzle of a vertical injection molding machine includes: a nozzle portion attached to a lower portion of a vertical injection device and having an injection flow path and a needle hole; a needle valve movably insertable into the needle hole; a cylinder component driving the needle valve; a bracket supporting the cylinder component at a rear end; a fixing device fixing the bracket to a fixing member fixed to the injection device; and a slide position adjustment mechanism adjusting a slide position of the bracket with respect to the fixing member. In a state where the fixing device is released, the bracket is allowed to slide by a predetermined width with respect to the fixing member, allowing the slide position of the bracket to be adjusted by the slide position adjustment mechanism.

An improved water union may include a fixed portion and a rotating portion. The fixed portion of the water union may be physically coupled to a stationary portion of a machine or other stationary object and the rotating portion may be physically coupled to a rotating portion of a machine or other rotating object. For example, a rotating table may include a stationary base to which the fixed portion of the water union may be physically attached, while the rotating portion of the water union may be physically attached to a rotating surface. In doing so, the rotating portion of the water union may be capable of freely rotating with the rotating surface, while maintaining a constant physical orientation to objects on the rotating surface within a rotating frame of reference.

An improved water union may include a fixed portion and a rotating portion. The fixed portion of the water union may be physically coupled to a stationary portion of a machine or other stationary object and the rotating portion may be physically coupled to a rotating portion of a machine or other rotating object. For example, a rotating table may include a stationary base to which the fixed portion of the water union may be physically attached, while the rotating portion of the water union may be physically attached to a rotating surface. In doing so, the rotating portion of the water union may be capable of freely rotating with the rotating surface, while maintaining a constant physical orientation to objects on the rotating surface within a rotating frame of reference.

An injection molding apparatus comprising a valve comprised of: an actuator having a rotor interconnected to a distal end of an elongated shaft adapted to drivably transmit rotational motion of the rotor to rotational motion of the shaft, the shaft being interconnected at a proximal end to a converter adapted to transmit rotational motion of the shaft directly to driven linear motion of a valve pin, the shaft having a length or configuration selected such that the actuator is mountable on the apparatus in a position or disposition that is isolated or insulated from significant or substantial exposure to or transmission of heat from a heated manifold.