Method for operating an automatic sewing device with a sewing he

Details Method for operating an automatic sewing device with a sewing he Method for operating an automatic sewing device with a sewing he

1987-09-03

1988-11-29

Nerbun, Peter

Sewing

Elements

Frames

11212112, 11212114, 112259, D05B 2100

Patent

active

047873264

ABSTRACT:
A method for operating a sewing automat with a sewing head with a rotary housing provides a compensation signal for a drive motor, in particular for the x- and y-drive motors of the workpiece holder, respectively, in order to correct errors of stitch length resulting from the superposition of the motion of the rotary housing relative to its drive motions. In order to accomplish this, the method provides the detection of the angular position of the rotary housing from one stitch to the next and the generation of a compensation signal depending on this angle difference.

REFERENCES:
patent: 3742878 (1973-07-01), Byrne et al.
patent: 4503788 (1985-03-01), Giannuzzi et al.
patent: 4512269 (1985-04-01), Bowditch
patent: 4574718 (1986-03-01), Scholl et al.

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