| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection molding machine with a purge shutter device which is inexpensive, can be easily applied to an existing injection molding machine, and prevents contamination caused by a purge resin on the side of a sprue bush and a cavity.SOLUTION: A purge shutter device 30 is provided between a stationary board 11 and a fixed side die 14 of a mold fastening unit 10. The purge shutter device is formed of a purge plate 31 and a purge shutter 32. When the purge plate 31 is mounted on a mounting surface 12 of the die 14 of the stationary board, the purge shutter 32 is guided by a guide groove 38 of the purge plate 31 and the mold mounting surface 12, and is driven so as to take an operation position for closing a small diameter part 21 of an injection nozzle insertion hole 20 communicated with a sprue 24 and a non-operation position for releasing the small diameter part 21.SELECTED DRAWING: Figure 1 |
