Apparatus for automatic quality control of textile threads
US4843879A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1987 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Sep 29, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/365
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention concerns a method and an apparatus for quality control of textile threads, and particularly of threads produced by different spinning methods. The apparatus comprises a housing (10) containing two measurement modules. A first module comprises a double condenser (32) and its associated electronic circuit to determine uniformity of linear mass of the thread, a precision scale (31) to determine linear mass and a drive means (33). The second module comprises a device (34) and a device (37) which cooperate to determine twist and elastic recovery of the thread. A manipulator (17) allows automatic positioning of the test pieces of thread (46) admitted into the apparatus through flexible tubes (16). The apparatus offers the advantage of permitting a series of measurements to be taken and computer processed for purposes of statistical compilation and/or memory storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.