| 摘要 |
The invention relates to a method for production of sheets made from binder, in particular plasterboards with recessed edges. Said method comprises the following steps: 1) generation of a marking (301) on a face (2 or 3) of the pre-form (5); 2) detection of the marking (301) and 3) transmission of an actuation signal to a cutting device (9) for the pre-form (5). The invention further relates to a production line for said sheets, and a unit, particularly for the generation of an impression (12, 12bis) in a pre-form (5). Said unit comprises a frame (101), first (102, 103) and second pulleys(105, 106), two belts (108, 109) around the pulleys (102, 103, 105, 106) and at least one line (111) running between said belts (108, 109), such that the axis thereof is parallel to the axis of the pulleys (102, 103, 105, 106).
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