26. Thread catcher
26.1 General notes
Immediately after thread trimming the needle thread catcher 1 seizes
the needle thread, holds it clamped and places it in the right lip when
sewing the next buttonhole.
This offers the following advantages:
·
Safe seam beginning, even in light, loose fabrics.
·
Tight stitches at the seam beginning.
·
The needle thread is sewn into the buttonhole lip and does not
need trimming.
Function sequence
·
After the sewing cycle is started, the needle thread catcher lowers
on the workpiece with the thread clamped.
·
The sewing operation starts with the right buttonhole lip.
The needle thread end positioned by the thread catcher is stitched
over and sewn in.
·
After a point defined in the control the thread catcher lifts and
moves back to the position “up”.
·
Just before the seam end the clamp of the thread catcher is
opened, and the thread catcher moves down.
·
After the end of the left buttonhole lip the needle stops in the upper
position. The needle thread is cut.
·
The thread catcher moves to the front. The clamp is closed. The
thread is caught.
·
The thread catcher moves backwards.
·
The thread catcher moves upwards.
76
1
To Next Page
Loading...
