An injection molding apparatus (5) comprising an injection molding machine (IMM), a heated manifold (60) that receives injection fluid (9) and distributes the injection fluid through a fluid distribution channel (120), a mold (70) having a cavity (80) and one or more valves (50) having a valve pin (100) the one or more valves (50) being comprised of: an electrically driven actuator (200), a controller including an algorithm that controllably limits rotation of a shaft (12) or output rotation device (16, 430, 500) during the course of an entire injection cycle to selectable angular positions that create a moment arm that extends between selected a selected minimum moment arm and a selected maximum moment arm, the selectable angular positions being between 70 degrees above and 70 degrees below an angular position that corresponds to the selected maximum moment arm.

An injection moulding tool for producing at least one injection-moulded part with an outer shape and an inner shape includes at least one cavity and, for every cavity, one hot-runner nozzle connected thereto, which has an annular nozzle mouth for injecting at least one melt into the cavity. The at least one cavity is formed by a cooled die, which forms the outer form for the outer shape of the injection-moulded part to be produced, and by a core, which forms the inner form for the inner shape of the injection-moulded part to be produced. The hot-runner nozzle has a nozzle core and a hollow needle, which can be moved along the nozzle core for opening and closing the annular nozzle mouth. The nozzle core protrudes beyond the annular nozzle mouth of the hot-runner nozzle and the nozzle core forms the core of the cavity of the injection mould.

An injection molding apparatus (5) comprising an electrically driven actuator (200) having a driven rotatable rotor drivably rotatably interconnected to an output shaft (12) or to an output rotation device (16, 430, 500) that is rotatably driven around an output rotation axis (12a, R3a) and a cam device or surface (600) that is eccentrically disposed or mounted off center a selected distance (ED) from the output rotation axis (12a, R3a) in an arrangement such that when the shaft (12) or rotation device (16, 430, 500) is rotatably driven, the cam member or surface (600) is eccentrically rotatably driven around the output rotation axis (12a, R3a).

An injection molding apparatus (5) comprising an injection molding machine (IMM), a heated manifold (60) that receives injection fluid (9) and distributes the injection fluid through a fluid distribution channel (120), a mold (70) having a cavity (80) and one or more valves (50) having a valve pin (100) the one or more valves (50) being comprised of: an electrically driven actuator (200), a controller including an algorithm that controllably limits rotation of a shaft (12) or output rotation device (16, 430, 500) during the course of an entire injection cycle to selectable angular positions that create a moment arm that extends between selected a selected minimum moment arm and a selected maximum moment arm, the selectable angular positions being between 70 degrees above and 70 degrees below an angular position that corresponds to the selected maximum moment arm.

An injection molding apparatus (5) comprising: an actuator (10) comprising a rotor (60) driven by a drive device (174) that consumes electrical energy (187) that generates heat, a thermal conductor (500) comprised of a thermally conductive material, a clamp plate (80) being mounted in thermal communication with the thermal conductor, a conductive surface (500s) of the thermal conductor being urged into contact with the clamp plate (80) under a spring force (SF) exerted between the actuator (10) and the thermal conductor (500), the heat (197) generated by the electrical energy (187) being conducted from the actuator housing (12) to the clamp plate (80).

An injection molding apparatus (5) comprising a clamp plate (80), a heated manifold (20), an actuator (10) interconnected to a valve pin (17) drivable along an axis (A), a mold (300) and a cooling device (500) that cools the actuator, the actuator (10) comprising a thermally conductive housing body (12) that is mounted in direct heat or thermally conductive contact with one or more insulators (60, 50) that are in turn mounted in direct heat conductive contact or communication with the manifold (20), the cooling device (500) comprising a heat transmitter comprised of an arm (502) comprised of a thermally conductive material having a distal end surface (502s) for making thermally conductive contact with the clamp plate (80), the proximal surface (502b) of the arm (502) being slidably engageable against a complementary surface (12ls) of the actuator that is spaced laterally (12ld) from the valve pin axis (A) for transmitting heat from the housing body (12) to the proximal surface (502b) and in turn to the distal end surface (502s) of the arm (502).

An injection molding apparatus (5) comprising a clamp plate (80), a heated manifold (20), an actuator (10) interconnected to a valve pin (17) drivable along an axis (A), a mold (300) and a cooling device (500) that cools the actuator, the actuator (10) comprising a thermally conductive housing body (12) that is mounted in direct heat or thermally conductive contact with one or more insulators (60, 50) that are in turn mounted in direct heat conductive contact or communication with the manifold (20), the cooling device (500) comprising a heat transmitter comprised of an arm (502) comprised of a thermally conductive material having a distal end surface (502s) for making thermally conductive contact with the clamp plate (80), the proximal surface (502b) of the arm (502) being slidably engageable against a complementary surface (12ls) of the actuator that is spaced laterally (12ld) from the valve pin axis (A) for transmitting heat from the housing body (12) to the proximal surface (502b) and in turn to the distal end surface (502s) of the arm (502).

An injection molding apparatus (5) comprising an electrically driven actuator (200) having a driven rotatable rotor drivably rotatably interconnected to an output shaft (12) or to an output rotation device (16, 430, 500) that is rotatably driven around an output rotation axis (12a, R3a) and a cam device or surface (600) that is eccentrically disposed or mounted off center a selected distance (ED) from the output rotation axis (12a, R3a) in an arrangement such that when the shaft (12) or rotation device (16, 430, 500) is rotatably driven, the cam member or surface (600) is eccentrically rotatably driven around the output rotation axis (12a, R3a).

An injection molding apparatus (5) comprising a clamp plate (80), a heated manifold (20), an actuator (10) interconnected to a valve pin (17) drivable along an axis (A), a mold (300) and a cooling device (500) that cools the actuator, the actuator (10) comprising a thermally conductive housing body (12) that is mounted in direct heat or thermally conductive contact with one or more mounts (60, 50, 803) that are in turn mounted in direct heat conductive contact or communication with the manifold (20), the cooling device (500) comprising a heat transmitter comprised of an arm (502) comprised of a thermally conductive material having a distal end surface (502s) for making thermally conductive contact with the clamp plate (80), the proximal surface (502b) of the arm (502) being slidably engageable against a complementary surface (12ls) of the actuator that is spaced laterally (12ld) from the valve pin axis (A) for transmitting heat from the housing body (12) to the proximal surface (502b) and in turn to the distal end surface (502s) of the arm (502).

An injection molding apparatus comprising a clamp plate, a heated manifold, an actuator, a mold and a cooling device, wherein the cooling device comprises: a heat transmitter comprising a distal arm or member and a proximal base or member, the distal arm or member being mounted by a spring loadable interconnection or engagement to or with the proximal base or member, the clamp plate, the mold, the manifold, the actuator and the heat transmitter being assemblable together in an arrangement wherein the spring loadable interconnection is loaded urging the distal end surface of the distal arm or member into compressed engagement with the clamp plate.