Thank you very much for your support last time. The problem about the spindle card mandrel has not happened once after adjustment, and the effect is very good.I now have a problem that has not been resolved in mass production and I need your supportIn the M8 assembly position (mainly the third threaded hole, the tail needle has been broken, and the left and right parts are not detected). The proportion of the tail needles that cannot be sensed from the rework belt is very large. There are about 50 pieces per day, and the ratio is 10 %.I have tried to replace the new sensor, but the effect is not good, there is no change, I have no other better way.