| 摘要 |
The machine comprises a frame (30,31,33) for holding a stack of preforms (10), a gripping arm (36) and cams (32) for opening the preforms. The arm has a push rod able to move between two positions. When retracted, suction pads (37) carried by the arm are put into contact with a preform and when extended the push rod passes across the preform face nearest the arm to push back the preform furthest away from the arm in order to prevent risks of jamming. |
