Hooking mechanism The stitching used in the leather sewing machine is much thicker than that of the ordinary sewing machine, so a non-central bobbin shuttle with a large capacity is usually used. Among them, the long shuttle mouth shuttle is one of the more used leather sewing machines. Its characteristic is: when the tip of the shuttle mouth is inserted into the needle thread loop, the loop is kept on the tip of the mouth and does not expand until the needle exits the sewing material. Obviously, when the needle exits the sewing material and then the thread loop is enlarged, the needle thread passes through the sewing material without hindering, and the damage of the sewing thread can be greatly reduced, which is more important for sewing a thick or sticky sewing material.

Feeding mechanisms come in many forms. Generally, the serrated feed tooth for the sewing machine cannot effectively convey the leather with high hardness. In order to achieve better feeding effect and reduce the damage of the leather surface, the leather product sewing machine often uses the feeding roller instead of the feeding tooth. In addition to the roller feeding, there are various forms of upper and lower feeding, upper and lower and needle feeding, which can make the surface of the sewing material not damaged and overcome the multi-layer sewing material. Some types of leather products are equipped with sewing machines. Lubricate the dip tank of the needle thread.