Injection molding apparatus

An injection molding apparatus comprising:

• a press equipped with
• a screw for generating molten material for injection into a mold, and
• a signal generator for generating a control signal adapted for a plurality of directional valves so that they can regulate the movement of one or more actuators adapted for controlling the movement of one or more shutters which regulate a flow of molten material to the mold,
• a signal converter connected between the press and the mold for converting the signal emitted by the generator into a signal adapted for activating one or more electric actuators mounted in the mold to operate a shutter capable of regulating the flow of molten material from a nozzle toward the mold, the signal converter is external to the press and the mold,
• wherein the converter comprises a programmable unit configured to send and/or receive data to/from one or each actuator,
• wherein the one or more actuators comprise on board an electronic unit and a memory in which there is stored at least one dynamic profile for the movement of the respective shutter during the opening and closing phase of the nozzle, and
• are configured to autonomously impose on the shutter such profile when they receive a start signal from the converter,
• wherein the converter comprises a data memory, and the programmable unit of the converter is configured for
• sending data into the memory of the electronic unit provided in an or each actuator and/or
• saving data in the memory of the converter by taking them from the memory of the electronic unit provided in an or each actuator.