| 摘要 |
An article unstacking system includes an infeed conveyor which delivers stacks of articles to an unstacker which has an inclined support wall and a carriage reciprocatively movable parallel to the support wall and carrying a platform disposed in a plane perpendicular to the support wall for cooperation therewith to define a generally V-shaped trough into which the stack is received. The carriage is moved upwardly until the top article is engaged by a discharge roller which lifts it from and peels it off the stack. To facilitate separation of the top article, the stack is retracted a short distance as soon as the top article is engaged by the discharge rollers, so that the carriage undergoes repeated up and down movements until the stack is depleted. Carriage drive is effected by short-stroke and long-stroke air cylinders, with the former being carried by the movable element of the latter.
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