H - Electricity – 01 – F
Patent
H - Electricity
01
F
26/119
H01F 41/08 (2006.01)
Patent
CA 1236274
METHOD AND APPARATUS FOR WINDING TOROIDAL CORES ABSTRACT First and second wire strands are successively wound into turns about different angular sectors of a toroidal core, the turns of the wires being wound in different directions. An oval-shaped wire guiding channel is provided with a gap into which a core is positioned by a core feeding mechanism. A gap crosser thereafter extends through the central opening of the core to complete the wire feeding channel. A first strand of wire from a continuous source is fed into the channel through the core opening and is positively driven around the channel by a drum and endless belt combination. A coil of the first wire is thus formed consisting of a plurality of vertically stacked loops, each of which circulates through the central opening of the core. The first wire is fed into the channel from a location outside the channel on one side of the plane of the coil. The trailing end of the first wire strand is then braked, causing loops of the wire to successively peel out of the channel and to be shrunk into turns which are tightened about the core as the core is rotated. The trailing and leading ends of the first wire are cut. The second wire strand is fed into the channel through the core opening from a location inside the channel on the other side of the plane of the coil. A coil of the second wire is thus formed consisting of a plurality of vertically stacked loops which circulate through the core opening. The trailing end of the second wire strand is then braked, and the core is rotated in an opposite direction. Loops of the second wire successively peel out of the channel and are shrunk into turns about the core, the turns of the second wire being wound in a direction opposite to the turns of the first wire. The trailing and leading ends of the second wire are cut, and the completed wound core is ejected.
481528
Marzec Willy
Tallis Allen
Pulse Engineering Inc.
R. William Wray & Associates
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