Pre-pressing device for rock wool felt production

The utility model discloses a prepressing device for rock wool felt production, which relates to the technical field of rock wool felt production and comprises an erecting frame, a controller body is fixedly mounted on the front side of the erecting frame, a prepressure fine-tuning mechanism is arranged on the inner wall of the erecting frame, and a drying processing mechanism is arranged on the left side of the erecting frame. The pre-pressure fine adjustment mechanism comprises a fixed pressing roller and a sliding groove plate, and the fixed pressing roller is rotationally connected between the front face and the back face of the inner wall of the erecting frame. By controlling the electric heating wire to work, air in the through groove can be heated, meanwhile, the fan body is controlled to work, air can be conveyed into an inner cavity of the inner supporting frame, hot air is conveyed into an inner cavity of the first drying frame and an inner cavity of the second drying frame through an external heat