| 摘要 |
PURPOSE: A sewing machine is provided to prevent having wrinkles on the sewing connected part by ultrasonic cutting and welding at the same time. CONSTITUTION: A sewing machine comprises the base(10), the pressing part(50), the heating part(30), and the transferring part(58). The pressing part continuously presses the work piece transferred along the base with designed shape. The pressing part provides friction heat energy on the work piece pressed by the pressing part, and cuts and fuses the work piece. The transferring part transports the pressing part to change the pressed part of the work piece. |
