Filament winding apparatus
US8955787B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 22, 2011 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Jan 24, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2053/8025
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A filament winding apparatus that prevents excessive unraveling of a fiber bundle due to variations in the speed at which the fiber bundle is wound includes a hoop winding device having a wrapping table, a bobbin support unit, a braking unit, a slack removal unit, a detector, and a controller. The slack removal unit absorbs slack caused by the difference between winding and unraveling speeds of the fiber bundle. The detector detects whether the amount of slack absorbed is equal to or greater than or is less than, a predetermined amount. When the amount of slack is equal to or greater than the predetermined amount, the controller increases the braking force of the braking unit for braking rotation of a bobbin. When the amount of slack is less than the predetermined amount, the controller reduces the braking force of the braking unit for braking rotation of the bobbin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.