GATE CLOSING CONTROL FOR INJECTION MOLDING SYSTEM

摘要

In an injection molding system, a trigger time at which closing of a gate is to be triggered may be computed based on a determined closing duration for closing the gate. The computing may be performed so as to provide a desired interval between an end of a hold phase of a molding cycle and the gate achieving a fully closed position. The computing may be performed automatically, for example in response to detecting a change in the closing duration for closing the gate. At the computed trigger time, closing of the gate may be triggered. The gate may form part of a hot runner that may be used with a multi-cavity injection mold. The gate may include a valve stem that is movable according to a motion profile that may be dynamically changeable.