The purge device null in the hot runner

摘要

PURPOSE:To perform purging of hot runner molds provided with two gates or more efficiently and accurately. CONSTITUTION:Valve stems 16 and 17 are installed on respective gates 14 and 15 of runners 12 and 13 of hot runner molds 1 and 2 so as to open and close the gates, and are opened alternately one by one by means of a working means for working together with the valve stems to perform purging.