然后他关上安全挡板,压下一对按钮,自动上料装置进行摆动,将八个连杆转动90°,送到第一工位上,上下输送杆的夹爪在那里把连杆抓起。

Then he closes a safety gate, depresses a pair of pushbuttons, and the loader swings the eight linking rods up 90 deg. lnto station No. 1, where they are trapped and picked up by grippers on the upper and lower transfer bars.