TWIN NEEDLE , NEEDLE FEED SPLIT NEEDLE BAR LOCKSTITCH MACHINE AND SMART CORNER-STITCH DEVICE.
Setting the number of A is "2", Angle is 90.
Setting the number of B is "1", Angle is 127.
Setting the number of C is "4", Angle is 53.
Setting the number of D is "3", Angle is 67.
|The traditional way to sew a corner When a operator starts to operate, he must|
turn the stop lever shaft assembly to left or right and then count the stitches
number very carefully. After finish first step of sewing , the lift the
presser foot and angle the fabric as with. In order to start second-step. operator
has to count the number of stitch very carefully as well as action in the
first step. And then push the stop lever shaft assembly again to finish sewing.
But there are a lot of shortcomings sewing a corner by traditional way.