Annular cutting machine for PVC (polyvinyl chloride) pipes

The utility model discloses an annular cutting machine for PVC (polyvinyl chloride) pipes, which belongs to the technical field of annular cutting machines and comprises a fixed platform, a plurality of mounting seats are fixedly connected to the upper end of the fixed platform, annular seats are fixedly connected to the upper ends of the mounting seats, and multidirectional clamping mechanisms are arranged in the annular seats. A double-sample cutting mechanism is arranged on the front side of the annular base located on the foremost side, an annular moving assembly is arranged between the double-sample cutting mechanism and the annular bases, and a collecting box is placed at the upper end of the fixed platform and located on the lower side of the double-sample cutting mechanism. According to the PVC pipe cutting device, the multiple linearly-distributed annular bases are matched with the multi-direction clamping mechanism, so that the PVC pipes with different lengths can be effectively clamped and fixed, t