Such machinery have been equipped with the split needle bar mechanisms and the single-needle stopping mechanism. After the disengaging of the left and right needle bars, the sewing of any single needle can be realized. Stitches of different corner can be sewn easily and reliably. The synchronous feeding of machine needle and feed dogs can effectively prevent the wrinkle, dislocation and sliding movement of the materials. The sewing materials are adaptable and the stitches are beautiful and tidy. The upper and low shafts have adopted bearings and synchronous tooth-shape band driving, which ensures the stable and low-noise rotation of the machine. The single and flexible knob-type stitch length regulating mechanism makes the regulation is more convenient. From the transparent visual window on the left and right pusher plates, the residual bottom threads in the bobbin can be observed at any moment. They are applicable to the ornamental seam of garments like jeans, skirts, overcoats and uniforms and the edge-pressing sewing.
