Pelletizing device used for preparing functional polyester chips and facilitating replacement of cutting net

The utility model relates to the field of polyester chip granulation, in particular to a functional polyester chip preparation granulation device with a cutting net convenient to replace, which comprises a granulator shell, an annular groove is arranged on the right side of the inner wall of the granulator shell, a conical guide sleeve is slidably connected in the annular groove, a support ring is lapped at the right end of the granulator shell, and a cutting net is arranged in the support ring. And the right end of the conical guide sleeve is movably inserted into the supporting ring. According to the utility model, the adjusting ring is pulled to drive the positioning block to release the limit with the clamping plate, and then the supporting ring is rotated to drive the clamping plate to rotate, so that the U-shaped groove in the clamping plate is released from the clamping connection with the positioning rod, and the supporting ring and the cutting mesh can be detached from the granulator shell, so that t