Device for manufacturing a composite yarn
US6109066A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1998 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Jun 17, 2018 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02J1/227
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The subject of the invention is a device for manufacturing a composite yarn formed by the combination of continuous glass filaments and continuous filaments of a thermoplastic organic substance, comprising, on the one hand, at least one bushing which is fed with glass, the lower face of which is provided with a multiplicity of orifices from which a multiplicity of glass filaments is drawn, and is associated with a coating device and, on the other hand, at least one extrusion head fed with a molten thermoplastic organic substance, the lower face of which is provided with a multiplicity of orifices from which a multiplicity of organic filaments is drawn, the said head being associated with a drawing device comprising at least two drums and with a venturi device which projects the organic filaments into the sheet formed by the glass filaments, and means, common to the bushing and to the extrusion head, which enable the composite yarn to be assembled and drawn, for example by a winding device such as a bobbin winder provided with spindles, in which an optical device for detecting the sheet of thermoplastic filaments running through a defined region is arranged between the drum-type dra…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.