product description

1. Innovative practical patent: a step differential adjustment device for a flat sewing machine that integrates differential segmented programming (can be set to 9 segments) and whole machine drive electronic control. 2. Equipped with upper and lower differential feeding function, multiple processes are combined into one, effectively reducing labor intensity; Widely used in processes such as pleating, upper sleeve tuck, upper collar, pressing placket line, rolling edge, stitching, rolling hem, etc., with functions of upper pleating and lower pleating, upper flat and lower pleating, and upper and lower pleating. 3. The ribbon zipper is integrated into one production process, revolutionizing the traditional zipper technology. After the zipper is sewn, the clothing body is evenly positioned. Easy feeding during sleeve insertion, even gaps, and no creases in the clothes. 4. Intelligent programming: Lower differential electronic adjustment: - key switch between differential and synchronous feeding modes. When the length of the ribbon zipper and fabric is not equal, the lower differential capacity feeding mode can be quickly adjusted and switched to achieve equal length sewing without twisting; When the length of the ribbon zipper and fabric is the same, one click switch can be used to synchronize the up and down feeding mode, so that the upper and lower materials are not layered and flat.