Stitching system with real-time steering control
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United States of America Patent
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Nov 1, 2016
Grant Date -
Feb 6, 2014
app pub date -
Aug 1, 2013
filing date -
Aug 2, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A stitching system is configured to stitch through decorative skins with a molded seam recess representing a seam and includes a sewing machine, an image acquisition mechanism, a controller, and a rotation mechanism. The sewing machine is rotatable with respect to a support table, and includes a sewing head to receive a sewing needle and a sewing foot to selectively engage the skin. The image acquisition mechanism produces an image of the seam recess with respect to the sewing head/needle(s). The controller determines the difference between the actual recess location and a predetermined desired recess location. Based on this difference, the controller determines a sewing machine rotation angle and orientation to reduce the difference to zero, and then produces a corresponding adjustment signal that drives the rotation mechanism. A robot can move either the sewing machine or the workpiece, and still use the herein-described real time steering control.
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