| 摘要 |
A sheet material de-stacking machine for removing a partial stack from a stack of sheet material includes a table top horizontally movably mounted on a frame, a drivable separating roller adjacent a front edge of the table top which is to be inserted into the stack of sheet material, and, in addition, a gripping device horizontally mounted on said frame for gripping and holding an edge of said partial stack at least during a final stage of the introduction of the table top between the partial stack and the remaining stack of sheet material. The gripping device comprises upper and lower gripping jaws which are both vertically slidably mounted in a carrier or support that is in turn movably mounted on the machine frame. A hydraulic drive means may be provided for moving the jaws towards one another, or the jaws may be set at a fixed predetermined distance. The gripping device may be arranged to move towards the stack behind the separating roller so that the latter initiates and completes the separation of the partial stack from the remaining stack. In another embodiment the roller moves behind the gripping jaws so that the separation of the partial stack is initiated by the lower gripping jaw which is introduced into the stack a predetermined distance below the upper side thereof.
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