A system and method for controlling an actuator which actuates an axially displaceable pin valve of an apparatus for injection molding of plastic materials, where the control system includes an electronic control unit of the actuator which adjusts at least one among position, speed and acceleration of the pin valve, and a position sensor which detects a position of a plunger of the actuator and is operatively connected to the electronic control unit. The position sensor indirectly detects the position of the plunger of the actuator.

There is disclosed a method (400) of ejecting a molded article (310, 312) from an injection mold (100). The method (400) comprises: during a second portion of the mold opening cycle of the injection mold (100), the second portion occurring later in time relative to a first portion of the mold opening cycle of the injection mold (100): controlling velocity of at least one of: (i) the moveable mold half (102, 502) relative to the stationary mold half (104, 504), (ii) the ejector (230) relative to the moveable mold half (102, 502); and (iii) an ejector actuator linked to the core insert (112, 114, 512, 514); and (iv) a stripper actuator that is linked to the stripper sleeve (116, 516); the controlling executed such that the molded article (310, 312, 506) is ejected from the molding component with a substantially zero departure-velocity along the first axis of operation.

A system and method for controlling an actuator which actuates an axially displaceable pin valve of an apparatus for injection molding of plastic materials, where the control system includes an electronic control unit of the actuator which adjusts at least one among position, speed and acceleration of the pin valve, and a position sensor which detects a position of a plunger of the actuator and is operatively connected to the electronic control unit. The position sensor indirectly detects the position of the plunger of the actuator.

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) adapted to interface with a complementary surface (47, 103s) in a downstream feed channel to vary rate of injection fluid flow to a cavity of a mold, and, a sensor adapted to sense a property of the injection fluid upstream and away from a gate, the sensed property being used in a program to controllably position the control surface relative to the complementary surface.

Provided is an improved mold structure, including a first mold base, a second mold base and two controllers. The first mold base and the second mold base are operably aligned. When the first mold base and the second mold base are in an aligned state, a mold cavity is jointly framed. Two gas passages, a first mold core and a second mold core are provided. The first mold base is provided with a runner. Two ends thereof are respectively connected to a material tube and a mold cavity of a molding machine. The first and second mold cores are made of porous material. Vent pipelines thereof are connected to the respective gas passages. The two controllers are respectively connected to the gas passages, and control the gas in and out such that the pressure in different areas in the mold cavity reaches a predetermined value, thereby controlling the flow direction of the raw material in the mold cavity.

A system includes a cavity, an injection nozzle configured to inject material into the cavity, and a plurality of sensors at sensor locations. Each of the plurality of sensors is configured to measure parameters at one of the sensor locations. The system lacks a strain gauge. The system further includes a controller configured to control a flow rate of the injection of material into the cavity. The controller is configured to receive the measured parameters and compare the received information to predetermined curves. The controller is configured to control the flow rate when the measured parameters deviate from the predetermined curves.

A system and method for controlling an actuator which actuates an axially displaceable pin valve of an apparatus for injection molding of plastic materials, where the control system includes an electronic control unit of the actuator which adjusts at least one among position, speed and acceleration of the pin valve, and a position sensor which detects a position of a plunger of the actuator and is operatively connected to the electronic control unit. The position sensor indirectly detects the position of the plunger of the actuator.

A system includes a cavity, an injection nozzle configured to inject material into the cavity, and a plurality of sensors at sensor locations. Each of the plurality of sensors is configured to measure parameters at one of the sensor locations. The system lacks a strain gauge. The system further includes a controller configured to control a flow rate of the injection of material into the cavity. The controller is configured to receive the measured parameters and compare the received information to predetermined curves. The controller is configured to control the flow rate when the measured parameters deviate from the predetermined curves.

To provide an injection molding machine which includes: a melting unit including a screw rotating about a rotation axis and having a groove forming surface on which a groove is formed and a barrel provided with a communication hole in a facing surface facing the groove forming surface, and configured to plasticize a material to generate a plasticized material and make the plasticized material flow out of the communication hole; a heating unit configured to heat the melting unit; an injection nozzle in communication with the communication hole and configured to inject the plasticized material into a mold; an injection control unit including a cylinder coupled to the communication hole and a plunger; a pressure detection unit configured to detect a pressure of the plasticized material flowing into the communication hole; and a control unit. The control unit controls the injection control unit to execute, based on a detected value, at least one of a metering operation of metering the plasticized material in the communication hole in the cylinder, and an injecting operation of injecting the plasticized material in the cylinder into the mold via the injection nozzle.

A remote controller can be provided on any apparatus that employs feedback control from a native controller to add functionality to the apparatus where the native controller is not capable of providing such functionality independently.