Sensing apparatus for yarn feeder
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United States of America Patent
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Jun 25, 2019
Grant Date -
Jan 31, 2019
app pub date -
Jul 31, 2017
filing date -
Jul 31, 2017
priority date (Note) -
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Abstract
A sensing apparatus for yarn feeder may comprise a yarn feeder and a tension controller. The tension controller has an elongated sensing block installed therein, and a horizontal extending board is connected to the sensing block. An operating rod is mounted on a middle upper surface of the extending board at one end and upwardly sticks out of the tension controller to pivotally connect to a tension pulley at the other end. A yarn wound on a winding wheel of the yarn feeder is configured to couple with the tension pulley. At least an impedance sensing piece is attached on a surface of the sensing block, and a deformable hole horizontally penetrates through the sensing block. When the sensing block is pressed or pulled, the tension controller can obtain the tension value of the yarn and further calculate the torsion value of the yarn feeder.
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