提出了一种生产后簧座的工艺方法：拉深—多步缩口—成形。
A kind of new forming technique to manufacture the back spring seat was proposed, called drawing-multi-step sinking with the cylindrical-forming process.
本发明公开了一种振动式螺旋送料机，它是在螺旋送料机的进料端安装有弹 簧座和高频振动电机。
The invention discloses a vibrating screw feeder. A feed end of the screw feeder is provided with a spring seat and a dither motor.
该二系簧安装座上还设置有第二筋板。
The secondary spring mounting holders are further provided with second rib plates.
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