Sewing machine and method for controlling the motion of a workholder
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United States of America Patent
Stats
-
Jul 21, 1987
Grant Date -
N/A
app pub date -
Mar 13, 1986
filing date -
Mar 16, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Sewing machine with a control for the movement of a workholder. For the formation of edge parallel seams when sewing on labels with seam sections extending parallel to the movement axes of a cross slide system carrying the work holder, there are arranged at uniform distance from the stitch hole four transmitted light sensors, of which always only the one which can recognize the crosswise extending following edge of a seam section is switchable into readiness for operation. After a signal has been given by a sensor, the respective drive motor of the cross slide system is controlled by means of a microcomputer in such a way that the respective seam section ends exactly in the intended corner. Because of the work related feed control, a sewing program is not needed. Besides, the control automatically adapts itself to different label dimensions.
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Cited Art Landscape
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