| 摘要 |
PURPOSE:To prevent mixing of resin and easily clean a leaked resin. CONSTITUTION:A sliding section S is provided in between a passage hole 1c which makes an injection device 4 communicate with a passage chamber C1 and a passage hole 2d which makes an injection device 5 communicate with a passage chamber C2. A resin-rich area J is provided at the sliding section S and a discharge hole 1e and a cleaning hole 1f are provided at an outer nozzle 1. A resin which flows due to pressure difference to the sliding section S of the outer nozzle 1 and an inner nozzle 2 enters the resin-rich area J, and stays in the cleaning hole 1f by passing through the discharge hole 1e. Accordingly, mixture of the resin is prevented, and the cleaning hole can be cleaned periodically. |
