COIL FORMING APPARATUS AND COIL FORMING METHOD

To provide a coil forming apparatus capable of easily forming a band-shaped coil into a precisely wound state.SOLUTION: When a band-shaped coil 100 having side ends 103 at both ends of a plurality of straight portions 102 is formed into a wound state, in a step of pivotally conveying the band-shaped coil 100 along an outer circumference of a coil winding jig 2 by a coil conveying mechanism unit 3, the side ends 103 are sandwiched by reforming portions 42 of a guide member 4 respectively arranged in the vicinity of both ends of the coil winding jig 2 in an axial direction, the band-shaped coil 100 is reformed into an arc shape at a first half portion 313a of pivot conveying, the side ends 103 are guided with reducing a diameter at a second half portion 313b of pivot conveying and the plurality of straight portions 102 is inserted into a plurality of comb-shaped grooves 23, respectively, and, in at least the reforming portion 42, a steady laminated part SLP of the band shaped coil 100, in which a partial difference in a coil lamination number does not arise at a folding portion extending from the straight portion 102 to the side end 103, is pressed while being slid by a projecting-strip pressing portion 4cp so that looseness of a coil conductor does not occur.SELECTED DRAWING: Figure 10 【課題】帯状コイルを精度よく巻回状態に容易に成形することができるコイル成形装置を提供すること。【解決手段】複数の直状部１０２の両端に側端部１０３を有する帯状コイル１００を巻回状態に成形する際に、帯状コイル１００をコイル搬送機構部３によりコイル巻取治具２の外周に沿って旋回搬送する過程で、コイル巻取治具２の軸方向両端近傍に各配置した案内部材４の癖付け部４２により側端部１０３を挟み込み、旋回搬送の前半部分３１３ａで帯状コイル１００を円弧状に癖付けし、旋回搬送の後半部分３１３ｂで側端部１０３を縮径案内して、複数の直状部１０２を複数の櫛歯状溝２３にそれぞれ挿入させ、少なくとも癖付け部４２では、直状部１０２から側端部１０３へと連なる折り曲げ部で部分的にコイル積層数の差が生じない帯状コイル１００の定常積層部位ＳＬＰを、凸条押圧部４ｃｐで摺接しながら押圧してコイル導体のばらけが生じないようにした。【選択図】図１０