Wire winding device
US8844858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2009 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Sep 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K15/0431
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wire winding device which uses a large-sized supply bobbin, which has a large capacity and a large diameter, to highly precisely suppress a variation in tension which variation occurs when a coil is formed by winding a wire material at high speed with the wire material aligned with a winding frame. Rotation (the number of rotation, and timing) of the supply bobbin relative to rotation of the coil is controlled based on the difference between the amount of take-up of the wire material taken up on the winding frame side and the amount of pay-out of the wire material paid out from the supply bobbin, and the control is performed such that the amount of the take-up and the amount of the pay-out agree with each other every moment. This can highly precisely suppress a variation in tension even if there are large differences between inertia of and the diameters of the coil and the supply bobbin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.