Method and apparatus for minimizing the coil height of wire in a coil forming chamber

A method of minimizing a coil height of a wire coil produced in a coil forming chamber, wherein individual wire windings are supplied on a horizontal conveyor, the wire windings are dropped at the end of the conveyor in an approximately vertical dropping movement, and the wire windings are dropped into the coil forming chamber so as to form a coil, the method comprising:

• dropping the wire windings from a drop line thereof eccentrically relative to an axis of symmetry of the coil forming chamber, and
• adjusting an angle offset Δφ between at least two successive windings in dependence on a number of wire windings Nw which are placed per 360° in the coil forming chamber, wherein Δφ=360°/Nw, wherein the number of wire windings placed in a circumference of the coil forming chamber results from a winding sequence frequency fw f w = rolling ⁢ ⁢ speed ⁢ ⁢ ( V ⁢ roll ) winding ⁢ ⁢ circumference ⁢ ⁢ ( U ⁢ wind ) = V ⁢ roll π * D ⁢ wind
• in relation to a distribution frequency fv=rate of rotation coil forming chamber in N w = f ⁢ W f v = V ⁢ roll f v * π ⁢ ⁢ D wind ,
• wherein the distribution frequency is f v = V ⁢ roll N w · π · D wind ,
• the method further comprising adjusting a winding range of between 11 and 36 windings per 360° of the coil forming chamber in the case of thin wire diameters of <7 mm, and a winding range of between 6 and 35 windings per 360° of the coil forming chamber in the case of thick wire diameters of >7 mm.