Causes of thread breakage in the sewing machine

  1. Problems with sewing thread

    (1) check if the quality of the sewing thread is rated. Moldy, damaged, or noxious sutures are more likely to break.

    (2) check if the selected sewing thread matches the needle. The sewing thread is too thin due to insufficient tenacity.A fine machine needle with sewing thread too thick will cause the sewing thread to be unable to pass smoothly through the needle hole and be cut.

    (3) check if the upper thread tension is too strong. If the tension is too strong, the thread will break easily.

    (4) check if the needle hole in the machine has accumulated residue, which causes the sewing thread to transport smoothly and break.

    Problem with the needle

    (1) check if the sutures melt due to the heat of the needle, especially when using chemical fiber sutures, due to the high-speed operation of the sewing machine, the needle repeatedly pierces the fabric and generates heat, which causes chemical fiber sutures with fewer melting points to melt.

    (2) check if the hook position of the hook is correct.If the hook is too close to the needle hole, it is easy to break the suture when taking the yarn.

    Other issues

    (1) check if the needle and needle plate are firmly installed. A loose needle or needle plate will cause the needle and needle plate to touch each other and the thread will break.

    (2) check all places where the top thread passes (including loops, needle holes, hooks, needle plate holes, clamp holes, etc.) for folds and defects to prevent the sewing thread from breaking.

    (3) check whether the spool of the coil is too full or unevenly wound. The coil of the coil thread is too full or the coil thread is not wound evenly and the coil thread is not carried smoothly, which can cause the coil thread to break.

    In addition, the bad gestures of the operator or the lack of rhythm in the speed of the vehicle will pull the fabric and cause the upper thread to be cut by the pulling teeth, or the pulling hook to move unevenly and tear the upper part. Yarn.