| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an injection molding machine capable of adjusting a gate opening at a low price. Ž<P>SOLUTION: The machine is equipped with molds 14, 15 made up of plurality of resin supply ports 17, a fork road 19 for supplying a synthetic resin injected from an injection device 100 to each resin supply port 17 and a plurality of switches 20 for individually opening and closing gates 25 provided on each fork road 19 provided that the switch 20 is composed of a switch pin 22, a cylinder unit 23 for driving a piston rod 27 back and forth between two positions and a switch pin drive unit 24 for moving the switch pin 22 in between open position and close position in response to displacement of a piston rod 27 with movement of the piston rod 27 converted into smaller momentum by the switch pin drive unit 24 and transferred to the switch pin 22 while enabling gate opening adjustment of each gate 25 by a stopper member 42 for stopping the piston rod 27 in the intermediate position between two positions and a position changing device 50 for changing this position. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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