Automatic sewing machine installation comprising: a sewing machine having no feed grip for the workpiece, with its table and a motive device for driving its shaft, an advance device adapted to conduct each workpiece that is to be stitched onto the entry edge of the table, a feeder device adapted to take over the workpiece and cause it to advance into the machine under the presser-foot and the needle a driving device for the presserfoot, a thread-cutter and its driving device, a driving device for discharging the stitched workpieces, and means for control of the advance device, feeder device, driving device for the shaft of the machine and for drive of the presser-foot, the threadcutter and the discharging device, adapted to bring about the actuation of the said devices in accordance with the appropriate sequence.