In Bag sewing machines equipped with a looper (Most of them Expect the Newlong Industrial DD5), the take-up mechanism is responsible for controlling the tension of the looper thread, which interacts with the upper thread to form the looped stitches
Newlong Industrial Japan 203111 Thread Take-up, for Looper
Newlong Industrial Japan 203111 Thread Take-up, for Looper thread for the NLI NP3II double thread Geo Textile Stitcher. For looper thread, the take-up mechanism plays an important role in achieving consistent and reliable stitching.
The take-up lever plays a crucial role in maintaining proper looper thread tension. As the needle rises and falls during the sewing process, the take-up lever engages and disengages, adjusting the tension of the looper thread to accommodate the movement of the fabric and the formation of the looped stitches.