Method and apparatus for heat-setting carpet yarn using variable yarn laying mechanism
US5467513A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1994 |
| Grant date | Nov 21, 1995 |
| Priority date | — |
| Expiry date | Jul 8, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02J13/001
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus is disclosed for heat-setting carpet yarn by conveying continuously running yarn through a heat-setting chamber. To facilitate production of variable texture yarn, a controllable oscillating yarn supply tube assembly is provided for laying down various yarn patterns on a conveyor belt which travels through the heat-setting chamber. The oscillating yarn supply tube assembly is configured to facilitate switch of production between straight-set and various highly crimped textured yarn patterns via simple adjustment of the drive motor which oscillates the yarn supply tube. The apparatus can be used for a new machine as well as for conversion kits for existing carpet heat-setting machines having stuffer boxes supplying highly crimped yarn to a conveyor belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.