Patent ID: 6915978

Claim:
The method of rod coil forming including continuous rod feeding through a wire-rod guide, forming of waps with a variable diameter by means of variation of speed of wire-rod guide rotation and stacking of waps by horizontal layers throughout the height of a coil, distinguished by the fact that the rod is fed at a speed of 35-300 m/s, forming of waps with a variable diameter is realized under the influence of dynamic forces by means of rod declination at the wire-rod guide outlet at an angle of 15-80° with the axis of rotation and its following feeding in a curved concave path with rotation at an angle of 80-90° with the axis of wire-rod guide rotation, in this case speed of wire-rod guide rotation is varied with respect to the following ratio: ω 〉 ⁢ 0.465 × σ T , where: ω—angular speed of wire-rod guide rotation, σ T —yield point of rod material, and waps in the form of a flat spiral are fed by conveyer for stacking in a separately located stack.