Wide application of hemming chain stitch sewing machine of industrial sewing machine

The head of the hemming chain stitch sewing machine is composed of an oblique pricking cloth mechanism, a hook shuttle (thread hook) mechanism, a needle bar and a swing rod thread take-up mechanism, and a feeding (differential or non-differential) mechanism. The sewing speed can reach 10,000 stitches per minute. The stitches it sews are composed of 1 to 4 stitches, at least one of which is wrapped around the edge of the sewing material, usually using a three-thread overlock sewing machine. It is mainly used to wrap the edge of reinforced sewing material, or to wrap the reinforced edge while sewing several layers of sewing material. Generally, a cutting knife is also equipped to cut the edge of the material while sewing. Because the stitch has greater elasticity, in addition to being used for edging of knitted materials, it is also used for stitching and edging of knitted underwear that needs expansion and restoration.