Closing sewing template with thread gluing teeth on lower portion and sewing thread gluing teeth

The closed sewing template comprises an outer frame plate, an empty discharging area is arranged on the outer frame plate, a replacing device is placed on the discharging area and comprises a bottom plate replacing plate and a belt loop plate, a machine fixing cover plate is arranged at the position adjacent to the bottom plate replacing plate, and a machine fixing plate is arranged on the machine fixing cover plate. The bottom plate replacement plate and the machine fixing cover plate form a closed area, replacement devices with different numbers are designed, thread gluing tooth patterns with different numbers intersect, namely, tangent planes and oblique lines coincide, the oblique lines of the machine fixing cover plate are arranged at the positions of the tangent planes and the oblique lines, and the machine fixing cover plate and the bottom plate replacement plate form the closed area. The thread gluing teeth are sewn in the closed area, displacement of the thread gluing teeth is effectively prevented,