Control method for a tufting machine
OwnerTsutomu Fukudainventor
Life of this patent
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Abstract
A method of controlling a tufting machine including preestablishing a selected stitch number and a selected yarn feed length for a predetermined unit feed length of ground fabric, determining stitch number and yarn feed length for the unit feed length of ground fabric by means of measured values respectively obtained from a ground fabric feed detector, a yarn feed detector and a stitch number detector, comparing the measured values with the preestablished stitch number and the preestablished yarn feed length, and automatically controlling the rotation speeds of a spiked roller and a yarn roller respectively to correct the ground fabric feed and the yarn feed to the preestablished values whenever the measured values depart from a predetermined tolerance from the selected values.
Claims1
A method of controlling a tufting machine comprising:
- preestablishing a selected stitch number and a selected yarn feed length for a predetermined unit feed length of ground fabric;
- determining stitch number and yarn feed length for the unit feed length of ground fabric by means of measured values respectively obtained from a ground fabric feed detector, a yarn feed detector and a stitch number detector;
- comparing the measured values with the preestablished stitch number and the preestablished yarn feed length;
- and
- automatically controlling the rotation speeds of a spiked roller or a yarn roller respectively to correct the ground fabric feed and the yarn feed to the preestablished values whenever the measured values depart from a predetermined tolerance from the selected values.
Dependencies are inferred from the claim text.