Lifting mechanism of cloth cutting machine

The lifting mechanism of the cloth cutting machine comprises a bottom plate, the top of the bottom plate is sequentially and fixedly connected with a working table, a driving box and a compression spring from left to right, the left side of the top of the working table is fixedly connected with a supporting column, the interior of the supporting column is movably connected with a sliding rail, and the right side of the working table is fixedly connected with a supporting plate. An operator treads a pedal downwards with the feet, so that a second toothed plate moves downwards to drive a second gear to rotate, then a first toothed plate is driven to move upwards, and therefore a connecting rod and a first threaded rod are driven to move upwards. The first threaded rod is in threaded connection with a first threaded sleeve, and the first threaded sleeve is fixedly connected with a first sleeve, so that the first sleeve rotates; and then a first gear is driven to rotate through a synchronous belt, then a second s