| 摘要 |
A stacking device includes a drive mechanism coupled to a movable band. The movable band is configured to move along an orbital path, and a twin roller with first and second portions engages the movable band and folds the movable band into at least two portions. In some cases, the drive mechanism can also include, or be attached to, two additional rollers that are inside the band and move along the orbital path. A stacking device may also include a roller set with first and second portions that press against a band. A mechanism may cause the band to orbit along a path such that it causes the band to receive a stackable item and move it to a predetermined location. At the predetermined location, the band releases the stackable item while continuing to orbit along the path, but while having zero total velocity. |
