An actuator system for an injection molding system includes a double acting pressurized fluid actuator having a piston drive movable in a cylinder space, a flow control valve for regulating a flow rate of pressurized fluid to and/or from the cylinder space, a flow sensor for detecting the flow rate of pressurized fluid to and/or from the cylinder space, and an electronic controller for controlling the flow control valve to regulate the flow rate of pressurized fluid to and/or from the cylinder space depending on the flow rate detected by the flow sensor.

Injection molding apparatus (1) comprising: an actuator (14, 940, 941, 942) comprising a rotor (940r, 941r, 942r) controllably rotatable by electric power, the actuator (14, 940, 941, 942) being interconnected to a controller (16) that generates drive signals (DC), an electrical drive device (940d, 941d, 942d) comprising an interface that receives the drive signals (DC) and controllably distributes electrical energy or power in controllably varied amounts according to the drive signals (DC) to a driver (940dr, 941dr, 942dr) that drives the rotor (940r, 941r, 942r), a valve pin (1040, 1041, 1042) having an axis (X) and a control surface (43, 45, 102m) drivable upstream and downstream through a downstream feed channel (17, 19, 160, 940c, 941c, 942c) the downstream feed channel having a complementary surface (47, 103s) adapted to interface with the control surface (43, 45, 102m) upstream and away from the gate.

An apparatus (10) for improving the flow properties of injection moulding material has a flow chamber (18) that is formed in an injection moulding assembly. The flow chamber includes an ultrasonic vibration device (22), and an outlet (20) through which injection moulding material can pass from the flow chamber towards a mould tool (14, 16). The ultrasonic vibration device is arranged in the flow chamber such that injection moulding material flows along an outer wall (41) of the ultrasonic vibration device, in use.

An injection-molding method includes providing an extruding system configured to produce a mixture, a first discharging channel including a first outlet, a second discharging channel including a second outlet, and a molding device including a space and first and second feeding ports communicable with the space and respectively engageable with the first and second outlets; engaging the first outlet with the first feeding port; engaging the second outlet with the second feeding port; injecting the mixture through the first outlet and the first feeding port; and injecting the mixture through the second outlet and the second feeding port.

An injection-molding method includes providing an extruding system configured to produce a mixture, a first discharging channel including a first outlet, a second discharging channel including a second outlet, and a molding device including a space and first and second feeding ports communicable with the space and respectively engageable with the first and second outlets; engaging the first outlet with the first feeding port; engaging the second outlet with the second feeding port; injecting the mixture through the first outlet and the first feeding port; and injecting the mixture through the second outlet and the second feeding port.

An injection-molding system includes an extruding system configured to produce a mixture; discharging channels communicable with the extruding system, wherein each of the discharging channels includes an outlet; and a molding device configured to receive the mixture from the outlets and including a space and feeding ports correspondingly engageable with the outlets. An injection-molding method includes providing an extruding system configured to produce a mixture, a first discharging channel including a first outlet, a second discharging channel including a second outlet, and a molding device including a space and first and second feeding ports communicable with the space and respectively engageable with the first and second outlets; engaging the first outlet with the first feeding port; engaging the second outlet with the second feeding port; injecting the mixture through the first outlet and the first feeding port; and injecting the mixture through the second outlet and the second feeding port.

An injection-molding system includes an extruding system configured to produce a mixture; discharging channels communicable with the extruding system, wherein each of the discharging channels includes an outlet; and a molding device configured to receive the mixture from the outlets and including a space and feeding ports correspondingly engageable with the outlets. An injection-molding method includes providing an extruding system configured to produce a mixture, a first discharging channel including a first outlet, a second discharging channel including a second outlet, and a molding device including a space and first and second feeding ports communicable with the space and respectively engageable with the first and second outlets; engaging the first outlet with the first feeding port; engaging the second outlet with the second feeding port; injecting the mixture through the first outlet and the first feeding port; and injecting the mixture through the second outlet and the second feeding port.

The present invention refers to an injection molding nozzle for introducing a molten plastic to a mold cavity (15) of an injection molding tool via a slot gate (2, 2, 3). The injection molding nozzle includes a nozzle core (2, 3, 3) having an elongate edge (3B) and is received in an opening (1A, 1) in a housing (1, 1). A portion of the nozzle core (2, 3, 3) is spaced apart from the housing (1, 1) so as to define a nozzle flow channel that is in fluid communication between a source of the molten plastic and the slot gate (2, 2, 3), and at least a downstream portion of the nozzle flow channel that is between the housing (1, 1) and the nozzle core (2, 3, 3) surrounds the nozzle core (2, 3, 3) on all sides.

The present invention refers to an injection molding nozzle for introducing a molten plastic to a mold cavity (15) of an injection molding tool via a slot gate (2, 2, 3). The injection molding nozzle includes a nozzle core (2, 3, 3) having an elongate edge (3B) and is received in an opening (1A, 1) in a housing (1, 1). A portion of the nozzle core (2, 3, 3) is spaced apart from the housing (1, 1) so as to define a nozzle flow channel that is in fluid communication between a source of the molten plastic and the slot gate (2, 2, 3), and at least a downstream portion of the nozzle flow channel that is between the housing (1, 1) and the nozzle core (2, 3, 3) surrounds the nozzle core (2, 3, 3) on all sides.

A hot runner nozzle includes a nozzle body, an annular outlet channel in the nozzle body, a source channel upstream of the annular outlet channel in the nozzle body, and a flow transition channel in the nozzle body. The flow transition channel interconnects the source channel with a part-annular segment of the annular outlet channel. The flow transition channel widens in a downstream direction and has a non-uniform cross-sectional channel thickness in either or both of the longitudinal (downstream) and transverse directions. The geometry of the flow transition channel may promote at least one of a uniform velocity profile and a uniform temperature profile in a generated annular or part-annular melt flow.