Method and apparatus for pneumatic insertion of a weft thread in the shuttle of a multi-feed weaving loom
US4410017A · kind A · utility
Inventor
Key dates
| Filing date | Dec 11, 1981 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Dec 11, 2001 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/36
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for the pneumatic insertion of the weft thread (24, 24a) into the shuttles (9) of a multi-feed weaving loom. The weft thread (24, 24a), of a respectively predetermined length, is inserted by means of an air flow in an injector (23) into the weft thread magazine (29) of a shuttle (9) traveling in a continuous movement past the injector (23). In order to be able to supply the shuttles (9) rapidly with the particular weft thread required for the fabric panel width in a multi-feed weaving loom, without thereby causing an impermissible strain on the weft thread or being required to extend the length of the weft thread magazine (29) of the shuttles (9), the injector (23) is moved conjointly with the shuttle, e.g. by a gear coupling (34-38) beginning at a start position (I) but, at a slower speed than the shuttle and over shorter distance during the insertion of the thread (24, 24a) into the weft thread magazine (29). At the end of this distance the injector is rapidly returned to the start position by a spring (42).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.