| 摘要 |
The present invention comprises: a cylinder (1) provided with an outlet member (5) on the front-end injection side, a stopper part (6) on the rear side, and a pellet supply opening (11a) for supplying plastic pellets (p); a melting device (2) having the same diameter as the inner diameter of the cylinder (1) and having formed therein a plurality of melting holes (22) that communicate in the longitudinal direction of the device main body (21) from an inflow-side large opening (22a) to an outflow-side small opening (22b); a heating means (4) for heating the same; and a drive means (3) for causing the melting device (2) to move in a reciprocating manner; the invention being configured with: a melting step for placing the outflow-side small opening (22b) of the melting device (2) opposite the outlet member (5), causing the melting device (2) to act as a plunger inside the cylinder (1), and melting the plastic pellets during the return travel of the drive means (3); and an injection step for injecting the melted resin (q) during the outward travel. |
