Sliver preparation
US12258685B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2023 |
| Grant date | Mar 25, 2025 |
| Priority date | — |
| Expiry date | Nov 28, 2043 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H15/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A drafting system for conveying a sliver to an inlet opening of a vortex chamber of an air-jet spinning device, for a drafting system having an exit roller pair and at least one additional drafting system roller pair and/or apron roller pair. A sliver is supplied at a spinning station of an air-jet spinning machine for the production of a thread to the vortex chamber. The exit roller pair can be driven decoupled from the at least one additional pair of drafting system rollers and/or apron rollers. In the method, the roller pair is driven for combing the sliver end after a spinning interruption at a predetermined combing speed and the at least one stretching mill roller and/or belt roller pair upstream of the starting roller pair is stopped or operated at a holding speed associated with the combing speed, which is at most 10% of the combing speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.