Fiber-disintegrating unit for a spinning machine
US4067181A · kind A · utility
Inventor
Key dates
| Filing date | Nov 26, 1976 |
| Grant date | Jan 10, 1978 |
| Priority date | — |
| Expiry date | Nov 26, 1996 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H4/32
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A unit for disintegrating a sliver into spinnable fibers fed to a spinning machine comprises a fiber-disintegrating drum with serrations generating a cylinder on rotation of the drum. A first smooth feed roller guides the sliver to the cylinder and defines therewith a first and second wedge-shaped space on the sides of which the serrations approach and depart from the first feed roller during a rotation, and this feed roller may be adjustably spaced from the cylinder. A second clamping and smoothing feed roller is disposed in the first wedge-shaped space and defines a nip with the first feed roller, the feed rollers being operable to feed the sliver through the nip to the serrations. A cover extends into the second wedge-shaped space and is closely spaced from the first feed roller and as closely as possible from the cylinder. A first pair of pinch rollers feed the sliver to the nip and a second pair of pinch rollers feed the sliver to the first pair of pinch rollers, the first pair of pinch rollers being driven at a higher speed than the second pair of pinch rollers, and the feed rollers being driven at a higher speed than the first pair of pinch rollers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.