Silicon rod bidirectional cutting mechanism

The utility model provides a bidirectional silicon rod cutting mechanism, which is applied to the field of brittle and hard material cutting, and comprises a wheel train panel, a cutting wheel train and an annular diamond fretsaw, the cutting wheel train is arranged on the wheel train panel, the annular diamond fretsaw is wound on a wire groove on the cutting wheel train, and the cutting wheel train is arranged on the cutting wheel train. A first cutting station is arranged on one side of the annular diamond fretsaw, a second cutting station is arranged on the other side of the annular diamond fretsaw, a first cutting groove and a second cutting groove are formed in the positions, close to the first cutting station and the second cutting station, of the gear train panel respectively, and the first cutting station and the second cutting station can alternately cut different silicon rods. And meanwhile, a tensioning device from outside to inside is further arranged for achieving bidirectional cutting, and the p