| 摘要 |
FIELD: mechanical engineering. SUBSTANCE: disadvantage of mechanisms with bins is that when extruding operation is interrupted for cleaning out a bin, operation efficiency is respectively reduced. In given innovation, removable bin incorporates one or more thin membrane bins. Membrane bin which is in direct contact with inner surface of removable bin is taken out from it when it is necessary to perform cleaning-out operation, and this eliminates aforesaid disadvantage. EFFECT: high efficiency. |
