| 摘要 |
<p>The device has a movable rotating arm (400) with a horizontal unit (410) connected to a jib crane (300) and a vertical unit (420) rotating around a pallet (P). A driving unit (500) drives a support (430) along a helical path such that a film reel (B) received by the support is unwounded to wrap products stored on the pallet. The driving unit has a rotational driving mechanism (560) driving in translation the support whose movement is controlled with the movement of another rotational driving mechanism (510) which has an anti-return mechanism and rotatively drives the arm.</p> |
