NOZZLE GATE OPENING AND CLOSING TIMING ADJUSTMENT MECHANISM IN MULTI-POINT GATE INJECTION MOLDING MACHINE

摘要

[aim] ; not change the flow of the molten resin is supplied to each nozzle nozzle opening and closing the gate provides a timing adjustment mechanism in multi-point gate injection molding machine capable of changing the resin that is emitted from each nozzle gate without charge. ; [Configuration] ; The resin injection and is provided with a plurality of nozzles, the respective nozzle, there is a gate which performs the opening and closing of the nozzle gate pin is arranged, the nozzle gate by a gate pin when the resin pressure exceeds a predetermined value during the charging of the resin is opened, In the resin pressure is a predetermined value in the adjustment mechanism of the opening and closing timing of the nozzle gate nozzle gate is used for the multi-point gate injection molding machine having a configuration that is closed by a gate pin when lower than, ; Each of the nozzle gate Some or all of the surface of the injection mold that faces towards the nozzle and is provided with a gate timing pins to the back and forth motion, the nozzle gate is indirectly opened and closed through a direct, or by the timing gate-pin-pin, a plurality of nozzle gate The configuration of the opening and closing timing adjustment is made.