The division of labor of sewing machine turners includes flat car, thousand birds, three copies, date punching and copying.
Jujube is very common in clothing, especially in jeans and tooling, which mainly plays a reinforcing role.
Also known as knotting, the English expression is BAR-TACK. Generally, in order to strengthen the firmness of use, a special machine is used to sew back and forth several times at the mouth of the bag or at the end of the zipper or at the cuffs of trousers.
There is a special jujube beating machine in industry, and the post of operating this machine is also called jujube beating.
Extended data:
Kaoke means sewing the edge of cloth. After the cloth is cut, many seams of Mao Mao beard will be produced. You can finish those Mao Mao cloths by sewing the patched edges with a Corker locomotive, and turn out the lower edges of the clothes. If there is a white sewing machine on the side, it is Kaoke's mark.
Double needle flat car is a common sewing machine, which has two stitches, two synchronizations, three synchronizations and corner sewing. The effect is that the two lines are parallel and parallel to each other. But it is also essential. Although the flat car can sometimes replace the double needle, considering the efficiency, the flat car is used to do the double needle work in mass production. Unless it is produced in small quantities, the double needle efficiency is high, the double lines are parallel, neat and beautiful.
Baidu Encyclopedia-Jujube