| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an injection device for a molding machine, in which a motor-driven fluid pressure supply unit can be effectively utilized. <P>SOLUTION: The injection device 1 for a die casting machine DC1 performs low-speed injection by supplying a working fluid to an injection head side chamber 17h from a supply cylinder tube 39 by driving by an electric motor 25 and subsequently performs high-speed injection by supplying the working fluid to the injection head side chamber 17h from an accumulator 11, in an injection step. After a molten metal is solidified, the injection device 1 supplies the working fluid to an injection rod side chamber 17r from the supply cylinder tube 39 by driving by the electric motor 25 to retreat a plunger 5 and supplies the working fluid to the accumulator 11 from the supply cylinder tube 39 by driving by the electric motor 25 to pressure-accumulate the working fluid in the accumulator 11. <P>COPYRIGHT: (C)2012,JPO&INPIT |
