Drawing frame spring hanging leather roller integral lifting device and drawing frame

The utility model provides a drawing frame spring hanging leather roller integral rising and falling device and a drawing frame, the drawing frame spring hanging leather roller integral rising and falling device comprises a leather roller horizontally connected with a left cradle and a right cradle, pressurizing grooves are arranged in the left cradle and the right cradle, and pressing devices are arranged in the pressurizing grooves; the left hanging plate is of an integrated L-shaped structure, the upper end face of the left hanging plate is horizontally arranged and fixedly connected with the lower end face of the left cradle, the lower end of the left hanging plate is vertically arranged and provided with a vertical first kidney-shaped groove, and the left end of the leather roller is movably arranged in the first kidney-shaped groove. The right hanging plate comprises a horizontal plate and a vertical plate which are hinged to each other, a spring is installed at the hinged position, the horizontal plate