| 摘要 |
PURPOSE:To constitute a device so that seams of both sides are uniform and symmetrical and a mask of a high quality can be sewn efficiently by fixing a pair of sewing machines operated synchronously onto a work table, starting driving of a carrying driving device at the time when a sewing object supporting member completes its ascent, and stopping the driving at the time when a cloth end part is detected. CONSTITUTION:A pair of sewing machines 1 opposed in the left and the right directions and operated synchronously are fixed onto a work table 2, a sewing object M is mounted on a sewing object supporting member 9 being in a descending state, and the sewing object supporting member 9 is allowed to ascend to a height position conforming to the carrying face 19a an ascent/descent driving device 7. Subsequently, a winder 6 is driven forward by a carrying driving device 5, the sewing object M is carried from a feed-in side X to a feed-out side Y, the sewing object supporting member 9 is allowed to descend, and the next sewing object is mounted. Thereafter, based on a detection signal of a cloth end detecting means S2, driving of the carrying driving device 5 is stopped, the sewing object supporting member 9 is allowed to ascend up to the carrying face 19a, and the sewing object M is carried from the feed-in side X to the feed-out side Y on the carrying face 19a. |
