Method for weaving low flaw cloths by means of the elimination of weft thread sections which have irregularities
US6997215B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 13, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Aug 26, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/34
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The method for weaving low flaw cloths (4) comprises an elimination of weft thread sections which have irregularities (22, 22′). The method is carried out by means of a weaving machine (1) which in the presence of an irregularity on a weft thread (2) to be woven can be controlled in such a manner that at least one weft thread section which comprises the irregularity can be removed from the cloth being formed after an insertion operation. The irregularity is in each case detected by a sensor (23a, 23b, 23c) prior to the feeding in of the weft thread into a thread store (21). After the detection of the irregularity an incorporation of the weft thread into the cloth is prevented in that a shed forming apparatus (100), for example a dobby for the moving of heald frames (10), is controlled in such a manner that that all warp threads (3) of the cloth to be formed are deflected either downwardly or upwardly into positions to the side of a weft thread insertion line (2′). After the insertion operation the non-incorporated weft thread section is removed; or the weft thread sections are removed after two or more insertion operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.