The design of the looper thread take-up cam is different from the factory, and some of the size and shape may be different from the actual need. If the gap is too large, it will easily cause jumpers and increase the difficulty of maintenance. The function of the looper thread take-up cam is: when the looper moves to the left, it will provide the looper with the amount of sewing thread needed for its movement and knitting stitches, and when the looper moves to the right, it will take back the excess sewing thread in a timely manner. .
Special attention is needed: in order to facilitate the needle to enter the triangle thread loop on the back of the looper, the looper thread needs to be tensioned when the needle enters the triangle loop with the aid of the looper thread take-up cam. However, excessive tension will cause the looper thread to break and the looper thread appears to be too tight on the back of the sewing material.
The correct adjustment standard of the looper thread take-up cam is: when the needle is down and the left needle tip reaches the lower edge of the looper, that is, when it enters the triangular thread ring securely, the looper thread on the looper thread take-up cam is located on the thread take-up cam. The highest point.
The speed of the looper thread take-up cam can be slightly adjusted on the basis of the above standards. If the speed of the looper thread is adjusted faster according to its own rotation direction, the stitch on the back of the sewing material will appear to have a loose looper thread tension, otherwise it will appear to be a tighter looper thread tension.
