Method for operating a textile machine producing cross-wound bobbins
US7690181B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2008 |
| Grant date | Apr 6, 2010 |
| Priority date | — |
| Expiry date | Apr 24, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01H13/24
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for operating a spinning machine with plural spinning stations (1), each case having a take-off roller device (6, 10, 14) for drawing a yarn (9) from a spinning device (2) and a sensor mechanism (26) for checking piecings. When starting a piecing, the theoretical conveying length of the yarn is determined based on the surface speed of the rollers (10, 14), until the piecing reaches the sensor mechanism (26). The deviation of the theoretical conveying length from a desired yarn length, corresponding to the spacing between the spinning device (2) and the sensor mechanism (26), is detected. The deviation is compared with a preadjustable limit value of the permissible deviation. If the limit value is passed, this indicates intolerable wear of the pressure roller (14) and produces a signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.