Method for twisting steel wire rope for 12-phi 3.2 mm special mechanical spring

A method for twisting a steel wire rope for a 1 * 2-phi 3.2 mm special mechanical spring is characterized in that a horizontal group straightener and a vertical group straightener are mounted behind a tilting fillet in twisting equipment, each of the horizontal group straightener and the vertical group straightener comprises 23 bending rollers, the roller diameter is 6.25 +/-10% of the rope diameter, the roller end distance is 1.8-2.0 times of the roller diameter, the diameter of a bending arc groove in each roller is 1.55 +/-10% of the rope diameter, the bending depth is 0.5-0.8 time of the rope diameter, and the torsion of the steel wire rope is-45 degrees to + 45 degrees; a horizontal group straightener and seven bending rollers are mounted in front of the winding displacement device, the horizontal group straightener and the seven bending rollers synchronously run with the winding displacement device, the roller diameter is 6.25 +/-10% of the rope diameter, the roller end distance is 1.8-2.0 times of the