Novel shaft sleeve of curved sewing machine

The novel curved sewing machine shaft sleeve comprises a shaft sleeve body, a first inner ring groove, a second inner ring groove and a communication groove are formed in the inner wall of the shaft sleeve body, an injection hole is formed in one end of the shaft sleeve body, the inner wall of the injection hole is communicated with one end of a transfer hole channel, and the opening of the injection hole is connected with the tail end of an injection pipe. The outer wall of the other end of the shaft sleeve body is attached to the inner side face of a heat dissipation plate, a positioning mechanism is arranged on the heat dissipation plate and connected with the shaft sleeve body, a ventilation window is formed in the heat dissipation plate, and a side plate is fixedly installed on one side of the heat dissipation plate. According to the novel shaft sleeve of the curved sewing machine, the novel structural design is adopted, heat generated in the rapid sliding process of a transmission shaft in the shaft sle