| 摘要 |
PROBLEM TO BE SOLVED: To provide a plunger type injection machine having a resin scraping member which is simple in structure, can be attached to a plunger shaft part, and can scrape off a leaked resin without disturbing sliding. SOLUTION: In a resin extraction hole formed in the rear part of the injection cylinder of a preplasticating injection machine, the member scraping the leaked resin adherent to the plunger shaft part is fitted to the injection cylinder and set. The scraping member is formed by a pair of half bodies which forms a semi-circular recess of the same curved surface as the circumferential surface of the plunger shaft part at an abutting end. The recess is connected settingly/removingly to/from the plunger shaft part, and the half bodies are set on both sides of the plunger shaft part. A scraping hole is formed. The plunger shaft part is inserted/positioned into/at the hole by the half bodies. COPYRIGHT: (C)2007,JPO&INPIT
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