The utility model discloses a
smoke collecting structure of a
plasma cutting machine, and particularly relates to the technical field of
plasma cutting machines, the
smoke collecting structure comprises a
cutting bed, a cutting
machine on a guide rail, a
smoke absorbing box connected with the guide rail and the like, a filter plate is arranged in the smoke absorbing box and used for blocking smoke particles, and the bottom of the smoke absorbing box is provided with a specially-designed sealing plate structure. A plurality of mounting seats are uniformly distributed at the bottom of the inner wall of the smoke suction box, rotating rods in the mounting seats are connected with a moving seat through torsional springs, a sealing plate on the moving seat can be automatically opened and closed, and when the cutting
machine works, an
air pump is started to generate
suction force, smoke is sucked from an input port in the bottom of the smoke suction box, the cutting machine stops working, the
air pump stops, and the torsional springs enable the sealing plate to be automatically closed.
Flue gas is efficiently collected, the health of operators is protected, particulate matter can be effectively filtered, the quality of exhausted air is improved, an input opening in the bottom of the smoke suction box is close to the cutting machine, the
flue gas is timely collected, disintegrating
slag is prevented from entering, the interior can be kept clean due to the automatic sealing function of the sealing plate, and the cleaning and maintaining
workload is reduced.