Feed arrangement for an open-end friction spinning machine
US4607485A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Jan 25, 1985 |
| Grant date | Aug 26, 1986 |
| Priority date | — |
| Expiry date | Jan 25, 2005 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In the case of a device for open-end friction spinning having two friction rollers that are arranged next to one another to form a wedge-shaped gap and are drivable in the same rotational direction, an arrangement is provided for the feeding and opening of a sliver which contains an opening roller from which a fiber feeding duct leads to the wedge-shaped gap. A compressed air duct that is led past the opening roller is connected to the fiber feeding duct for supporting the fiber transport. A dirt discharge opening assigned to the circumference of the opening roller is arranged at a distance to the compressed air duct in such a way that the effect of the excess pressure does not reach back into the area of the dirt discharge opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.