The present disclosure is directed to an injection nozzle for an injection molding device comprising a drive train for at least one closure element arranged movable in a nozzle head in a first direction. The drive train comprises a cam mechanism with a cam head comprising a wedge and at least one side plate. The wedge and the side plate are together arranged moveable in a second direction. Per closure element the wedge comprises at least one first drive surface which interacts with a second drive surface arranged at the closure element at least during closing of the closure element. The at least one side plate comprises a third drive surface which interacts with a fourth drive surface arranged at the closure element at least during opening of the closure element.

The present disclosure is directed to an injection nozzle with a nozzle head including at least one discharge opening for injecting molding material into a mold cavity of a thereto interconnected injection mold and forming therein a molded body. At least one positively controlled closure element movably supported in the nozzle head for closing a communication opening in the connected injection mold. An actuator cylinder comprises a first piston which is interconnected to the closure element. The first piston is arranged movable between a first position, in which the closure element is fully closed, and a second position in which the closure element is fully open. A second piston is interconnected to the closure element, and is arranged movable between a third position in which the second piston is not interconnected to the closure element and a fourth position in which the closure element is limited in an intermediate position.

An apparatus for driving a valve pin in an injection molding system, comprising: an actuator having a piston disposed within a master chamber, the piston being slidable upstream and downstream within the master chamber having a seal that forms a seal surface with a complementary interior surface of the master chamber, the seal surface forming opposing upstream and downstream fluid drive chambers, a bleed port extending through the interior surface of the master chamber at a position on the interior surface of the master chamber where the bleed port is: either disposed immediately downstream of the complementary interior surface of the master chamber that forms a seal with the seal surface of the piston and communicates with a downstream fluid drive chamber when the piston is in a fully upstream position, or is disposed immediately upstream of the complementary interior surface of the master chamber that forms a seal with the circumferential seal surface of the piston and communicates with an upstream fluid drive chamber when the piston is in a fully downstream position.

A two-stages hydraulic booster device for mold functional components includes a first hydraulic control one-way valve serially connected between the solenoid directional control valve and the pumping chamber of the supercharger via a first oil passage; a second hydraulic control one-way valve serially connected between the solenoid directional control valve and the pressure accumulating chamber of the supercharger via a second oil passage. The solenoid directional control valve simultaneously supplying oil to the first and second hydraulic control one-way valves via the first and second oil passages, respectively, and the pressure for opening the second hydraulic control one-way valve is larger than that of the first hydraulic control one-way valve, thereby moving the back pressure formed in the first oil passage to open the second hydraulic control one-way valve to drive the piston to transform the low pressure oil into high pressure oil to move the mold functional components.

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.

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.

An apparatus for controlling the rate of flow of fluid mold material comprising: a manifold, a valve pin having a pin axis, a pin connector and a stem, the valve pin being drivable into and out of open and closed positions relative to the gate, an electric actuator comprising an electric motor comprised of a motor housing that houses a drive shaft having a drive gear and a drive axis, a transmission comprised of a transmission gear having a gear axis, the drive gear, the transmission gear and the valve pin being drivably interconnected and arranged such that the drive axis and the gear axis are non-coaxially mounted or disposed relative to each other and the valve pin is drivable linearly along the pin axis, wherein one or the other of the motor housing or the transmission housing are removably attached to a top clamping or mounting plate that is mounted upstream of the manifold and fixedly interconnected to a mold.

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.

A compound represented by formula (4) is produced by a step A of reacting a compound represented by formula (2): ##STR00001##
wherein R.sup.1 represents an ethyl group or the like, R represents a halogen atom or the like, n represents 0, 1, 2, or 3, and M represents potassium or the like, with thionyl chloride to obtain a compound represented by formula (1): ##STR00002##
a step B of reacting the compound represented by formula (1) with a compound represented by formula (5): ##STR00003##
wherein A.sup.1 represents a nitrogen atom or CH, R.sup.5 represents a trifluoromethyl group or the like, and m represents 1 or 2, to produce a compound represented by formula (3): ##STR00004##
or an acid salt thereof; and a step C of reacting the compound represented by formula (3) or an acid salt thereof in the presence of acid at 100 C. to 180 C. to obtain the compound represented by formula (4): ##STR00005##

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.