| 摘要 |
<p>An extruder that can be cleaned more easily. An extruder in which a material is supplied from a supply opening (21) of a circular tube section (20), the material is sent to a conveyance passage while the material on the surface of a feed roller (4)is scraped by a scraper (5) through rotation of a screw (3) and the feed roller (4), the material sent to the conveyance passage is conveyed to the discharge opening side of the circular tube section (20) while being kneaded by rotation of the screw (3), and the kneaded material is extruded from the discharge opening of the circular tube section (20). The extruder has a feed roller support portion (23) rotatably supporting the feed roller (4) and installed so that the feed roller (4) can open and close the circular tube section (20) in such a way that the feed roller (4) separates from the screw (3) to open the inner space of the circular tube section (20). The scraper (5) is fixed to the feed roller support portion (23) such that the boundary between a guide surface (52) and the inner peripheral surface (20a) of the circular tube section (20) is opened when the feed roller support portion (23) is opened.</p> |
