Profile pultrusion device capable of producing variable-curvature profile

The invention discloses a profile pultrusion device capable of producing variable-curvature profiles, which comprises a fiber tow supply mechanism, a fiber cloth frame, a preforming mechanism, an impregnator, a motion platform, at least two molds and a traction mechanism, and is characterized in that the fiber tow supply mechanism is used for supplying fiber tows; the fiber cloth frame is used for supporting a fiber cloth roll and unwinding the fiber cloth roll; the pre-forming mechanism is used for pre-forming the fiber tows and fiber cloth unwound by the fiber cloth frame into a whole so as to obtain a pre-formed profile; the impregnator is used for infiltrating the preformed profile through resin in the impregnator; the moving platform is configured to be capable of mounting at least two molds and driving any one mold to move to a working position; and each mold is provided with a curved mold cavity with different curvatures, and the mold located at the working position is used for curing the infiltrated p