The invention relates to a stacking device (10) for placing sheet-shaped elements (P) in stacks in a forming machine (1), said stacking device (10) comprising: a movable stacking surface (11), and an actuating device (12) for moving stacking surface (11): between a retracted position and a vertical forward position in a reciprocating back-and-forth motion for stacking sheets, and between the retracted position and a stowed position to open an access to the stack of sheet-shaped elements (P), characterized in that the actuator (12) comprises cam means configured to move the stacking surface (11) upwardly in the retracted position, in a raised position to be located above the top of the sheet stack. The invention also relates to a machine forming sheet-shaped elements comprising at least one such stacking device.

The invention relates to a stacking device (10) for placing sheet-shaped elements (P) in stacks in a forming machine (1), said stacking device (10) comprising: a movable stacking surface (11), and an actuating device (12) for moving stacking surface (11): between a retracted position and a vertical forward position in a reciprocating back-and-forth motion for stacking sheets, and between the retracted position and a stowed position to open an access to the stack of sheet-shaped elements (P), characterized in that the actuator (12) comprises cam means configured to move the stacking surface (11) upwardly in the retracted position, in a raised position to be located above the top of the sheet stack.

The invention also relates to a machine forming sheet-shaped elements comprising at least one such stacking device.

An image reading apparatus according to an embodiment includes a first sensor, a roller, a correction unit, a second sensor, a control unit, and a scanner. Upstream to downstream positions with regard to a transportation direction of the sheet are determined in the following order: the first position, a second position, a third position. The first sensor detects the presence or absence of a fold of the sheet in the first position. If it is detected in the first position that the fold is present, the roller transports a sheet in a reverse transportation direction. The correction unit corrects the fold in the first position. The second sensor detects the presence or absence of the fold in the second position. If it is detected in the second position that the fold is present, the control unit controls drive of the roller in such a manner that the sheet is transported up to the first position in the reverse transportation direction. The scanner reads an image on the sheet of which the fold is corrected in the first position.

The present specification relates to an embodiment of an electrode material winding apparatus, in which an electrode material is processed so that an electrode tab is not disposed in an impregnation region into which an electrolyte can be injected, and the electrode material is wound so that the electrode tab is arranged only in a specific region excluding the impregnation region, thereby winding the electrode material such that the electrolyte is injected through the impregnation region.