| 摘要 |
A worm of extruder contains a shaft with in-series located a shank, a section with a screw comb, a section with pins, and with a tip. The section with pins is made in the form of a bushing, the shaft in the section with pins is made with a screw thread, in the case the pins are located in the wall of bushing and are installed with possibility of contact with the screw thread of shaft and reciprocating displacement. The bushing is installed on the shaft with possibility of turning and fixing in the assigned position. |
