Device for direct insertion of yarn in automatic winder
US6755366B2 · kind B2 · utility
0Cited by
19References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2002 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Sep 30, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2701/31
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An insertion mechanism brings an insert yarn into association with a base yarn in an automatic winder. The insertion mechanism comprises an insertion guide for delivering the insert yarn to a predetermined location on the winder, and a tensioning device for maintaining tension on the insert yarn. In another aspect, an automatic winder is configured or modified for direct insertion. In contrast to conventional creel frame insertion, the direct insertion technique of the invention avoids the need for a separate step of back-winding, and allows the automatic doffing feature on the winder to be enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.