APPARATUS FOR REDUCING THE VOLUME OF SYNTHETIC RESIN

摘要

An apparatus for reducing the volume of synthetic resin comprises a cylinder having a volume reducing cylinder section and a pushing cylinder section, a driving shaft having a tapered shaft and a screw shaft, and a motor for driving the driving shaft. The volume reducing cylinder section has a tapered heat generating and volume reducing opening portion with its sectional area gradually increasing toward its open end. The tapered heat generating and volume reducing opening portion contains therein a tapered shaft having a tapered shape gradually extending in the synthetic resin delivery direction. The screw shaft is mounted so as to be movable in the axial direction, and moving the screw shaft in the axial direction, the space between the heat generating and volume reducing opening portion is controlled. The screw shaft feeds synthetic resin into the volume reducing cylinder section, and the volume reducing cylinder section and the tapered shaft reduce the volume of the synthetic resin and discharge the same.