Automatic sewing machine

Automatic sewing machine comprising

• a sewing head (2) having an upper arm (20) and a needle (31) which is movable up and down relative to the upper arm (20);
• a feeding device (39, 40) for first and second workpieces (37, 38) which are arranged on one another and are to be sewn together and the second workpiece (38) of which is a pocket piece which is to be sewn to the first workpiece (37) whith an approximately U-shaped seam (60);
• a workpiece holder (52, 53) being a part of the feeding device (39, 40) and having a U-shaped slot (57) adapted to the path of the seam (60) to be sewn and comprising two longitudinal slots (57a, 57b) approximately parallel to one another and comprising a transverse slot (57c) which connects these longitudinal slots at one end;
• means for transferring the workpieces (37, 38) from a transfer position (58) some distance from the sewing head (2) to a sewing position (59) at the sewing head (2) in a feeding direction (x-direction) which runs perpendicular to the direction (y-direction) of the longitudinal slots (57a, 57b);
• means for moving the sewing head (2) and the workpiece holder (52, 53) relative to one another in the sewing position (59) in a sewing plane (x-y plane) running perpendicular to the needle (31) and following a preset path of the seam (60);
• a folding device (64) for folding the pocket piece (second workpiece 38) being arranged ahead of the transfer position (58) and having a sword (80);
• means for moving the sword (80) in the direction (y-direction) of the longitudinal slots (57a, 57b);
• and
• a common stand (1) on which the folding device (64), the feeding device (39, 40) and the sewing head (2) are arranged;
• wherein
• means are provided for displacing the folding device (64) on the stand (1) in the feeding direction (x-direction) relative to the sewing head (2);
• and
• means are provided for locking the folding device (64) relative to the stand (1).