| 摘要 |
<p>The present invention relates to a gate valve operating apparatus which includes a plurality of gate valves (10) on an upper fixated plate of a hot runner injection mold and opens and closes the gate valves (10) with compressed air. The gate valve operating apparatus includes: an operation fluid supply conduit piping groove (9) corresponding to each gate valve (10) on the upper fixated plate (8); an operation fluid supply conduit (20) which is inserted and installed on each operation fluid supply conduit piping groove (9); a solenoid valve installation groove (13) on an upper cover (12) of a cylinder (11); and a solenoid valve (30) installed in the solenoid valve installation groove (13).</p> |
