Device for producing a book block

A device for producing a book block, which is composed of layers of sheets connected to one another and creased along a crease line forming a crease edge, with a stack forming station (40), which in a stack forming area (48) assembles creased sheets, provided with glue on their first outside, to form a stack for forming a book block and an abutting means (42) delimiting the stack forming area (48) for holding the stack and a pressing device with at least one pressing means (60), which is embodied to generate pressure on the top of the stack in order to press the stack against the abutting means (42), characterized in that during the generation of pressure on the top of the stack, the pressing means (60) can be moved along the top of the stack through the stack forming area (48) at the same time, and the stack forming station (40) has an alignment device (44), which aligns a creased sheet with its first outside provided with adhesive to the abutting means (42) and thus to a sheet or stack already held on the abutting means (42), wherein the pressing device is furthermore embodied such that the pressing means (60) generates pressure on the second outside of each creased sheet after this sheet has been aligned by the alignment device (44) with its first outside provided with adhesive to the abutting means (42) and thus to the stack held on the abutting means (42), in order to press this sheet against the stack.