| 摘要 |
PROBLEM TO BE SOLVED: To increase the accuracy of an injection amount of a thermosetting molding material and stabilize it without using a backflow preventing device for an in-line screw. SOLUTION: This injection-controlling system has a heating cylinder 11, the screw 12 which is equipped with a screw head at the front end, a first driving section to rotate the screw 12, a second driving section to advance/ retract the screw 12, and a screw rotation-controlling means. In this case, the screw rotation-controlling means rotates the screw 12 in the same direction as a measuring process by driving the first driving section in an injection process. Since the first driving section is driven, and the screw 12 is rotated in the same direction as the measuring process in the injection process, the molding material is prevented from trying to flow backward in the grooves of the screw 12. Therefore, the molding material does not flow-back in the injection process.
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