Arrangement for air-layer fibre bodies on a moving air-permeable conveyor path
US5885623A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | May 1, 2017 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/72
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An arrangement for fibre-laying on a moving air-permeable conveyor path (2) fibre bodies which are comprised of at least two different layers. The arrangement includes for each fibre layer a succession of air-laying units disposed sequentially in the direction of movement of the conveyor path, wherein each of the units includes elements (6, 7) for passing a stream of air-borne fibres to a region above the moving conveyor path (2), elements (3, 4) for generating a subpressure beneath the air-permeable conveyor path in the proximity of the region in which the stream of air-borne fibres is delivered, and elements (6, 7) for shielding the stream of air-borne fibres from ambient air. According to the invention a transition region (1) into which ambient air can freely enter is provided between each of pair elements (6, 7) arranged sequentially in the direction of movement, such as to delimit a stream of air-borne fibres, and the elements (3, 4) which generate a subpressure beneath the air-permeable conveyor path extend beyond the fibre stream limiting elements and into the transition region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.