| 摘要 |
In an exemplary embodiment, the apparatus includes a first station, a second station, and a third station. At the first station, raw magnetic material strip (24) is de-reeled from a stock reel (42) and a predetermined amount of the raw magnetic material strip is fed and measured as the magnetic material strip is transported to a winding mechanism (60). In the winding mechanism, the magnetic material strip is continuously wound in and through an opening formed in a bobbin (12, 14) to form a wound transformer core. Preferably, a pair of bobbins are used and the magnetic material strip is continuously wound through openings formed in each of the bobbins. After winding the predetermined amount of magnetic material strip through the bobbins, the magnetic material strip is cut at a predetermined measured location to produce a trailing edge (26) of material. At the second station (34), the trailing edge is secured to the underlying coils by a suitable process, e.g., plasma welding the trailing edge to the underlying coils. At the third station (36), the wound core of magnetic material is coined into a desired shape, such as a generally rectangular shape to form a wound electrical transformer. |
