Nitriding device with controllable gas output

The utility model relates to the technical field of nitriding treatment, in particular to a nitriding device with controllable gas output. According to the technical scheme, the device comprises a rotating motor, a conveying box, a PLC control host, a furnace cover and a nitriding furnace, a nitrogen source pipe is fixedly connected to one side of the conveying box, a flow meter is fixedly connected to the side, away from the nitrogen source pipe, of the conveying box, and the tail end of the flow meter is fixedly connected with the upper surface of the furnace cover through a connecting pipe; a fixed plate is fixedly mounted on the top, close to the flow meter, of the inner wall of the conveying box, a dovetail groove is formed in the inner side of the fixed plate, a dovetail block is slidably mounted in the dovetail groove, a movable plate is fixedly mounted on the inner side of the dovetail block, and a rack is fixedly mounted on the inner side of the movable plate; a half gear is rotationally installed at