Winding device
US6490762B1 · kind B1 · utility
Inventors
Key dates
| Filing date | May 4, 1998 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | May 4, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01G27/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a lap winding apparatus for producing a batt lap, the batt is wound onto a tube which is rotatable about a fixed axis and is driven by a revolving endless belt. The belt is arranged in a loop, formed between two deflecting rolls and is tensioned by a tensioning device. The tube which is rotatable about a fixed axis, as well as the two deflecting rolls are dimensioned, and positioned relative to each other, in such a manner that the loop at the beginning of the lap winding process embraces the tube over an initial minimum wrapping angle equal to, or larger than, 120° and preferentially equal to, or larger than, 180°. For generating a tensioning force depending on the lap diameter, the tensioning device is associated with a control device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.