Method and device for forming stacks of flat elements

Details Method and device for forming stacks of flat elements Method and device for forming stacks of flat elements

B - Operations, Transporting

65

H

B65H 31/32 (2006.01) B65H 31/10 (2006.01)

Patent

CA 2591453

A method and a device for forming stacks of flat elements (10), in particular sheets such as for example sheets of paper, in a stacking region (2), the flat elements (10) being guided to the stacking region (2) substantially continuously, wherein flat elements (10) are stacked on a main stack carrier (14), an auxiliary stack carrier (26) is brought into the stacking region (2) after reaching a predeterminable number of flat elements stacked on the main stack carrier (14) above the stack then thereby finished, subsequent flat elements (10) are stacked on the auxiliary stack carrier (26), the finished stack is removed from the main stack carrier (14), the main stack carrier (14) which is then empty is brought below the auxiliary stack carrier (26) and the auxiliary stack carrier (26) is withdrawn from the stacking region (2) in order thus to transfer to the main stack carrier (14) the partial stack (30a) formed on the auxiliary stack carrier (26) up until this point in time. The special element of the invention is that during the transfer of the partial stack (30a) from the auxiliary stack carrier (26) to the main stack carrier (14) at least a portion of the main stack carrier (14) at least partially forming the upper side performs a movement (H) substantially in opposition to the movement of withdrawal (R) of the auxiliary stack carrier (26).

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