Electronically controlled system for making a multiply effect yarn
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United States of America Patent
Stats
-
Jul 7, 1981
Grant Date -
N/A
app pub date -
Nov 14, 1979
filing date -
Nov 15, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multiply effect yarn is wound up from a plurality of strands on a yarn-winding body that is rotated at a variable predetermined speed. Each of the strands is fed via a respective strand-feed element to the yarn-winding body. The feed rate of each of these strand-feed elements can be individually varied, and is established as a function of the rotation rate of the yarn-winding body to maintain a predetermined proportionality between the various speeds. The drive for each strand-feed element comprises a separate pair of variable-speed motors set to operate at different speeds and operated by forward and backward counters so that either the one motor or the other motor of each drive is connected to the respective feed element which can also be connected to a brake, if desired. The various speed rates can rapidly be adjusted, in accordance with the overall drive rate for the yarn-winding body, even during production of the multiply effect yarn.
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