The direct sewing of curled edges on a sewing machine is prone to twisting and wrinkling. When equipped with an digital puller wheel and equipped with a micro pressure foot lifting device, the pressure foot is suspended during the sewing process. The puller wheel directly pulls the fabric away, resulting in extremely high sewing effect and quality, without twisting or wrinkling. (Suitable for matching large fabric sewing machines for curtains, home textiles, tents, and furniture)