Laser cutting machine for cutting multiple profiles

The utility model discloses a laser cutting machine for cutting multiple profiles, which is characterized by comprising a machine tool main body, a portal frame; a laser head; a first support plate; a second support plate; a drum; a conveyor belt; a first motor; a lifting platform; the portal frame comprises a left supporting arm, a right supporting arm and a cross beam; the portal frame is arranged above the machine tool body and is in sliding connection with the machine tool body; the laser head is slidably connected with the beam. The first supporting plate is arranged in the middle of the machine tool body. The outer wall of the roller is provided with an annular groove. The first motor can drive the roller to rotate. The second supporting plate is arranged between the machine tool body and the roller, and a V-shaped groove is formed in the upper portion of the second supporting plate. The conveyor belt is arranged above the machine tool body, and the lifting table is connected with the conveyor belt and