通过对有内螺纹的塑件结构分析，确定采用齿轮齿条机构脱模的模具结构。
Through analyzing the structure of plastics with inner screw, determined mold structure with gear and rack stripping screw mechanism.
模具的特点在于利用注塑机顶出动作，由推板驱动螺杆，经齿轮传动使螺纹型芯旋转，塑件自动脱出。
The injection machine pushed the knockout plate, and then the knockout plate drove the threaded rod, resulting in the rotation of the threaded core and the auto_demoulding of the plastic part.
通过对有内螺纹的塑件结构分析，确定采用齿轮齿条机构脱模的模具结构。
The engagement theory of the gear rack mechanism can be used to study the silent chain mechanism.
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