Method for the control of a weft yarn feeding device in a yarn processing system, and yarn processing system
US6976511B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2001 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | Jul 31, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/362
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A yarn processing system includes a weft yarn feeding device with a control unit and a power loom which consumes weft yarn. In operation, a run-signal is generated by the power loom that initializes the start-up of the weaving operation. A start-signal that is derived from the run-signal is transmitted to the feeding device. The start-signal is generated externally of the feeding device. The drive motor of the feeding device is driven at a predetermined speed, after receiving the external start-signal in order to prevent an undesired reduction of the size of a yarn store by the initial consumption demand of the start-up of the weaving operation of the power loom. A signal transmitting connection is provided in the yarn processing system between the power loom and a control unit of the feeding device for transmitting the start-signal. On start-up of the power loom, the drive motor of the feeding device is operated at a predetermined speed by the control device independent from the size of the yarn store in the feeding device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.