Weft thread supplying device with rotary throttle valve in airjet weaving machines
US5086812A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 1991 |
| Grant date | Feb 11, 1992 |
| Priority date | — |
| Expiry date | Feb 14, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/3053
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for supplying weft threads in airjet weaving machines includes at least one nozzle connected to a compressed air source, a buffer tank, a cutoff valve placed in a funnel between the compressed air source and the nozzle, and a controlled throttling device. The throttling device is mounted downstream from the buffer tank and in the immediate surroundings of the cutoff valve, and includes the funnel, a rotary throttling element, and a motor for rotating the throttling element. The funnel is divided into an inlet funnel and an outlet funnel connected to the inlet funnel. The rotary throttling element fits within the inlet funnel and rotates to selectively block an entry to the outlet funnel according to the degree of rotation of the throttling device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.