| 摘要 |
The invention concerns a plastic material metering system for plastic articles manufacturing device comprising a metering unit (1) forming one block including a material supply conduit (10), a metering cavity (4) capable of communicating with said material supply conduit (10), a material outlet (5) arranged on one wall of said metering cavity (4), a cylindrical rod-shaped valve (3) adapted to slide through and close said material outlet (5). The invention is characterized in that the metering unit (1) further comprises a piston (7) mounted coaxially sliding about the valve (3) so as to allow variation of the metering cavity volume (4) and momentary closure of the material supply conduit (10). The invention also concerns a method for using said system. |
