A shock absorber, including: a first cylindrical body; a second cylindrical body surrounding an outer peripheral surface of the first cylindrical body and provided movably in a direction of an axis of the first cylindrical body with respect to the first cylindrical body; a spring provided between the outer peripheral surface of the first cylindrical body and an inner peripheral surface of the second cylindrical body and applying a force in a direction of separating the first cylindrical body and the second cylindrical body; and a spring seat portion that is a cylindrical body provided between the outer peripheral surface of the first cylindrical body and the inner peripheral surface of the second cylindrical body and supporting an end portion of the spring in the axis direction, the spring seat portion being made of resin and being arranged movably in a direction intersecting the axis direction.

A shock absorber, including: a first cylindrical body; a second cylindrical body surrounding an outer peripheral surface of the first cylindrical body and provided movably in a direction of an axis of the first cylindrical body with respect to the first cylindrical body; a spring provided between the outer peripheral surface of the first cylindrical body and an inner peripheral surface of the second cylindrical body and applying a force in a direction of separating the first cylindrical body and the second cylindrical body; and a spring seat portion that is a cylindrical body provided between the outer peripheral surface of the first cylindrical body and the inner peripheral surface of the second cylindrical body and supporting an end portion of the spring in the axis direction, the spring seat portion being made of resin and being arranged movably in a direction intersecting the axis direction.

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 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 insert molding apparatus includes: a lower mold including a seating part on which an insert member including a through-hole is seated; an upper mold mounted on the lower mold to receive the insert member seated on the seating part; and a first fixing part including a first head provided in the lower mold and inserted into the through-hole of the insert member when the insert member is seated, and a first drive unit that moves the first head. The first drive unit is moved to adjust a length by which the first head is inserted into the through-hole.

An injection molding system including an injection nozzle that injects resin into a mold and a conveying device that conveys the injection nozzle between a first position where the injection nozzle injects resin into a first mold and a second position where the injection nozzle injects resin into a second mold.

An injection molding system including an injection nozzle that injects resin into a mold and a conveying device that conveys the injection nozzle between a first position where the injection nozzle injects resin into a first mold and a second position where the injection nozzle injects resin into a second mold.

Provided is a magnetic clamp device that can be easily made into a state where a fall prevention function can be exerted when attaching adsorption objects.

A support member (20) is protruded horizontally from an upper part of a magnetic plate (7) of the magnetic clamp device. A protruding member (28) is protruded upward from a mold as an adsorption object that is adsorbed and fixed to an adsorption surface (8) of the magnetic plate (7). The mold (9) is arranged so that the engagement portion (32) faces the locking portion (27) with a predetermined gap above the locking portion (27) in a state where the mold (9) is adsorbed and fixed at a predetermined position on the adsorption surface (8).

Provided is a magnetic clamp device that can be easily made into a state where a fall prevention function can be exerted when attaching adsorption objects.

A support member (20) is protruded horizontally from an upper part of a magnetic plate (7) of the magnetic clamp device. A protruding member (28) is protruded upward from a mold as an adsorption object that is adsorbed and fixed to an adsorption surface (8) of the magnetic plate (7). The mold (9) is arranged so that the engagement portion (32) faces the locking portion (27) with a predetermined gap above the locking portion (27) in a state where the mold (9) is adsorbed and fixed at a predetermined position on the adsorption surface (8).

An in-mold lid closing apparatus comprises a frame, a first actuation assembly configured to linearly position a lid engagement member between a first and second linear position relative to an in-mold lid, and a second actuation assembly configured to rotatably position the lid engagement member between a first and second rotational position relative to the in-mold lid. The first actuation assembly comprises a first support moveably coupled to the frame and a first actuator coupled to a frame support of the frame and a first actuator drive element coupled to the first support. The second actuation assembly comprises a second support moveably coupled to the frame and disposed between the frame support and the first support and a second actuator coupled to the second support and a second actuator drive element coupled to the first support.