Method for restarting the operation of an air jet loom, after defective weft removal
US5487413A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Oct 18, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D51/002
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A loom is slowly operated in reverse rotation to move the loom to a position where a cutter is able to easily cut an improper weft when there occurs an error in the picking motion. Then, the loom is operated in normal rotation to move it to a position where the improper weft remaining in the shedding motion can be easily removed. A pick finding device is then operated to temporarily separate a main shaft and the shedding motion, and a harness frame is reversely rotated for 360.degree.. A new weft is then inserted after the improper weft is removed from the shedding motion. In the course of the operation, a cloth fell is held at a fixed position to protect the cloth fell from being beaten by a reed. The take-up motion is then operated in normal rotation, and at the same time the let-off motion is rotated in the reverse direction at a fixed rotational ratio to provide a warp with proper tension. Thereafter, the loom, take-up motion and let-off motion are simultaneously started for restarting the weaving operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.