| 主权项 |
1. Continuous extrusion apparatus comprising:
a shaft supported for rotation in a bearing, the shaft having first and second ends; a rotary extrusion wheel fixed to the first end of the shaft so as to rotate therewith about a rotary axis, the wheel having at least one peripheral groove; a shoe extending around at least part of the wheel and co-operating with the at least one peripheral groove so as to define a passageway between the wheel and the shoe, the passageway having an inlet for receipt of material to be extruded, the wheel being rotatable relative to the shoe; an abutment member blocking the passageway so as to obstruct the passage of material; an extrusion die disposed for receipt of material from the passageway; a mounting arrangement disposed between the wheel and shaft, the arrangement comprising a mounting member having a first inner tapered surface in abutment with a second inner tapered surface defined by the shaft or a component of the mounting arrangement intermediate the shaft and the wheel; the wheel having a first outer tapered surface in abutment with a second outer tapered surface defined by the shaft or a component of the mounting arrangement that is fixed to the shaft. |
