Adjusting the height of the sealing needle of the beading sewing machine, the author suggests to adjust the height position of the sealing pin after replacing the new sealing needle and the normal working wear, that is, when the needle is at the top dead center, the sealing needle should be closed. The opening of the needle is such that it exceeds 0.8 mm to 1.2 mm at the opening of the needle.

Specific adjustment method: When the needle is at the top dead center, we open the valve cover of the gas lift cylinder, use a 2 mm Allen key (random tool) to extend from the fastening screw, and loosen the fastening screw inside. Turn the adjusting nut to adjust the height of the sealing pin. We turn clockwise, the needle is raised, counterclockwise, and the needle is lowered. When adjusting the position of the sealing needle, we should pay attention to make the sealing needle of the beading machine exceed the opening of the needle by 0.8 mm to 1.2 mm. In addition, after the adjustment, we must tighten the fastening screws.