Double-cam cloth feeding mechanism of sewing machine

The double-cam cloth feeding mechanism comprises a sewing machine body, a lower shaft mechanism and a cloth feeding assembly are arranged in the sewing machine body, the lower shaft mechanism comprises a transmission shaft, and the cloth feeding assembly comprises a toothed plate installation frame, a first cloth feeding gear, a second cloth feeding gear, a first rotating shaft and a second rotating shaft. The first rotating shaft and the second rotating shaft are arranged in the sewing machine body in parallel in a spaced mode, the second rotating shaft is located below the first rotating shaft, the first cloth feeding gear is provided with a first cam, and the second cloth feeding gear is provided with a second cam. A first mounting hole and a second mounting hole which correspond to the first cam and the second cam respectively are formed in the side direction of the toothed plate mounting frame, a transmission gear rotating along with the transmission shaft is arranged on the transmission shaft, and the t