| 摘要 |
<p>In order to eject resin leaked from an injection chamber (13) toward the shaft side of an injection plunger (31) away from an injection cylinder (30), a plunger-type injection molding machine injection device is equipped with an ejection guide (151, 251) at the rear edge of an injection cylinder which is thermally isolated from the injection cylinder main body. A band heater (53), which heats the ejection guide, is controlled independently of the band heater (38) which heats the injection cylinder. One embodiment of this injection guide (151) causes the ejected resin to fall from the ejection opening (151h) while retaining its molten state. In another embodiment, the ejection guide (251) has ejection channels (251f) which cause the resin to harden and be ejected in a fine strand state. <IMAGE></p> |
