AUTOMATIC GAS DISCHARGING CONTROL TECHNOLOGY OF INJECTION MOLD USING VENTING CORE SYSTEM

摘要

The present invention relates to an automatic gas discharging control technology of an injection mold by a venting core system, the technology which removes harmful gas by the venting core system so that the harmful gas generated within the mold during injection can be easily discharged to the outside of the mold. The present invention performs a process of controlling removal of gas within the mold by installing the venting core system capable of discharging gas at a product charging end portion of a plastic injection mold, and using a timer device capable of generating a control output by receiving an injection signal from the injection molding machine and delaying the signal in order to operate the venting core system. The venting core system includes a solenoid valve which is connected to a timer, a hydraulic/pneumatic cylinder, and a venting core which opens or closes a gas discharging space. Gases generated in a cavity within the mold are rapidly discharged through a gas outlet connected to an air suction device by using external air flown in through an air inlet. A gas discharging method through the venting core system has excellent gas discharging efficiency and reduces the burden of users through minimization of facilities by simplifying a structure of the venting core system. Further, the gas discharging method through the venting core system also has an energy reduction effect by installing the venting core system such that the venting core system can be operated during a certain operation as well as the entire operation of an injection molding machine.;COPYRIGHT KIPO 2018