The composition of the whole machine: the whole machine of the sewing machine is composed of the head, the worktable, the frame, the clutch motor, the pedal control device, the bottom thread winding frame, the thread frame and the motor switch. The height of the frame of the lockstitch sewing machine can be adjusted, which can make the operator in a more comfortable working posture.
Performance: Most of the high-speed lockstitch sewing machines have a flat structure, which is a precision machine composed of hundreds or nearly a thousand parts, and the movement of each structure is extremely accurate. At present, the highest sewing speed of commonly used high-speed lockstitch sewing machines is 5000-6000r/min; the adjustable maximum stitch distance is 4-7mm; the maximum seam thickness is 5-7mm; the operating voltage is 380V. Most of the lockstitch sewing machines with computers have functions such as automatic positioning of sewing needles, fixed number of sewing needles, and automatic thread breaking.
Main mechanism and working principle: The single-needle lockstitch sewing machine has the characteristics of stable operation, good stitch formation, fast speed and easy operation. Its working mechanism is mainly composed of a main shaft transmission mechanism, a rotary hook mechanism, a lead wire mechanism and a cloth feeding mechanism.
