Knowledge

The specific inspection method is: while pressing the cam follower (group) in the B direction, slowly reverse the handwheel. When the cam driving roll

In the sewing work, it sometimes appears that the clothing material does not move forward, but instead moves in the direction of the operator, that is

When sewing clothes, the clothes often move back and forth, that is, one step forward and one step backward. This is caused by the fact that the feedi

The movement of the cloth is all transported by the teeth. When it appears that the clothing does not move at all, the only way to find faults on the

In the process of using sewing machines to sew clothing, sometimes the clothing material moves at an uneven speed and the stitch length is short and i

The bobbin case is not installed correctly. Put the notched part upwards, put it into the slot and turn it by hand to see if the needle is in this neu

1. There is a problem, the needle is rough and bent. The hole is not smooth, try changing the needle. 2. The needle is thin and thick, and the thread

The needle breakage of the electric sewing machine may be caused by improper operation in many cases. You can adjust it according to the following met

1. About skipping stitches: 1. The backlash and height position of the needle and the rotary hook are wrong and the direction is wrong (check the stan

One is that the hook itself is less oily, and the other is that the clearance fit between the hook guides is too tight The third is the roughness of t

The accurate feeding action of the interlock sewing machine can reduce the probability of stitch skipping. The main aspects of the machine that affect

For some types of machines, the timing of tensioning needles and needles can be adjusted. The swing amplitude of the stretched needle must be ensured: