The upper thread may be blurred when the automatic sewing machine is sewing. If this happens, we need to check several places first, such as the sewing thread, thread clamp, thread passer, machine needle, etc. If there are problems in these places, it will lead to this situation.
Sewing machine: Sewing threads can be divided into thick and thin, as well as good or bad. We can choose better sewing threads, so that the embroidered stitches will be beautiful.
Thread clamp: The contents of the thread clamp should be cleaned up. If there are other items that cause the thread clamp to operate abnormally, the stitches will also be blurred.
Wire guide: Check whether the installation position of the wire guide is accurate, and whether the wire hole is smooth. If it is not smooth, grind or polish the wire hole to make it smooth.
Machine needle: Check the installation of the machine needle, check whether the machine needle is bent, etc. If the machine needle is bent, you need to change a machine needle.
If there is no problem after checking these places, you need to find a professional to repair it..Professional automatic sewing machine manufacturer in China, with years of manufacturing and export experience, contact us!