Apparatus for advance edge detection and sewing
First Claim
Patent Images
1. Apparatus for preliminary scanning of an object to be sewn on a computerized sewing apparatus comprising:
- a workholder arranged to hold the object and means for moving the object from said scanning apparatus to a separate sewing apparatus;
a microprocessor;
means for scanning segments of said object on the workholder prior to sewing and arranged to provide an output signal corresponding to the scanned image data to the microprocessor;
means for causing relative movement between the workholder and said scanning means in accordance with a predetermined sewing path during scanning, said means for causing movement being controlled by said microprocessor;
means for determining the true edge locations of the object from said output signal;
comparator means to compare the true edge locations with pre-programmed expected edge locations and to determine any deviation; and
means for determining any necessary modification of the sewing path to compensate for any such deviation.
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Abstract
Method and apparatus for edge location analysis preliminary to sewing on a separate computerized sewing apparatus including scanning an object to be sewn by moving it under a scanning assembly in accordance with a predetermined sewing path to provide true edge location data, comparing the true edge location data with the expected edge locations to determine any deviations, and sewing the object using the predetermined sewing path as modified by the true edge locations data.
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Citations
7 Claims
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1. Apparatus for preliminary scanning of an object to be sewn on a computerized sewing apparatus comprising:
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a workholder arranged to hold the object and means for moving the object from said scanning apparatus to a separate sewing apparatus; a microprocessor; means for scanning segments of said object on the workholder prior to sewing and arranged to provide an output signal corresponding to the scanned image data to the microprocessor; means for causing relative movement between the workholder and said scanning means in accordance with a predetermined sewing path during scanning, said means for causing movement being controlled by said microprocessor; means for determining the true edge locations of the object from said output signal; comparator means to compare the true edge locations with pre-programmed expected edge locations and to determine any deviation; and means for determining any necessary modification of the sewing path to compensate for any such deviation. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for edge location analysis for use in a computerized sewing system comprising:
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scanning edges of an object to be sewn in a preliminary scanning cycle to generate images thereof, said scanning cycle comprising the steps of; causing relative motion of the object relative to a scanning assembly in accordance with a predetermined sewing path; and scanning sequential segments of the object and generating image data corresponding to each scanned frame; generating true edge location data from the scanned images in an image analysis step, said image analysis step comprising the steps of; determining the true edge locations of the object from said image data; and determining necessary modifications of the predetermined sewing path in light of the true edge location data; sewing adjacent the object edge utilizing the predetermined path as modified in accordance with the true edge location data on a sewing machine separate from said scanning assembly; and transferring the object to be sewn from said scanning assembly to said sewing machine before said step of sewing.
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Specification