Method for positively feeding an elastic yarn, and circular knitting machine
US5050405A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 4, 1990 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Jan 4, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04B9/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a method for positively feeding an elastic yarn to the knitting system of a circular knitting machine having a yarn feeder apparatus controlled by an electronic control unit, the apparatus of a take-out signal (A) initiates the count of a preselected number of position signals (p) before generating a stop signal (S), or otherwise the take-out signal (A) is disregarded for a preselected space of time at the end of which the stop signal (S) is generated, the number of position signals (p) or the space of time, respectively, being selected in accordance with the yarn quality and/or the distance between the yarn feeder apparatus and the knitting system. In this manner the yarn feeding operation is continued for relaxing the elastic yarn. The electronic control unit (3) of the yarn feeder apparatus (2) in the circular knitting machine (1) includes a delay circuit (19) for controlling the generation of the stop signal (S).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.