| 摘要 |
An unstacker device for unstacking flat objects comprises a motor-driven feed magazine controlled so as to move flat objects in a stack and on edge facing an unstacking head provided with a motor-driven drive having a perforated belt and a suction chamber, which motor driven drive is actuated so as to separate a current first object from the stack and so as to eject it in a direction that is transverse to the direction in which the stack of flat objects is moved, in which device the motor-driven drive is actuated and stopped each time a current object is unstacked, and the stack of flat objects is straightened up in the magazine in response to detection of signals delivered by a plurality of sensors disposed in the unstacking head. The sensors are disposed in the unstacking head in a manner such as to deliver signals indicating that the current object is presented appropriately relative to the unstacking head, and the drive of the unstacking head is actuated if the signals indicate that the current object is presented appropriately.
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