Device for cutting sheet metal plates out of a sheet metal strip

A device for cutting sheet metal plates out of a sheet metal strip (1), comprising:

• a laser cutting device (2) that can move back and forth in a transport direction (T) of the sheet metal strip (1) as well as in a y-direction running perpendicular to the transport direction,
• a first conveyor belt whose first end (7) can be moved back and forth together with the laser cutting device (2) in the transport direction (T),
• a second conveyor belt having a second end (8), which is opposite the first end (7) and which can be moved back and forth in the transport direction (T),
• wherein the first (7) and the second end (8) are moved in such a way that a laser beam (L) generated by the laser cutting device is directed towards a gap (S) formed between the first (7) and the second end (8) and extending in the y-direction,
• wherein a screen (18) movable back and forth in the y-direction concurrently in alignment with the laser beam (L) is provided in the gap (S),
• wherein a dust discharge shaft (9) extends in a discharge direction (A) pointing away from an underside (U) of the sheet metal strip (1),
• wherein the dust discharge shaft (9) is provided with a ventilation device for ventilating the gap (S), and
• wherein the ventilation device comprises ventilation apertures (14a, 14b), which penetrate the dust discharge shaft (9).