Cutting piece angle adjusting device

The utility model provides a cutting piece angle adjusting device which comprises a supporting body, a limiting assembly, a transmission assembly and a driving assembly, the supporting body is provided with a limiting groove assembly, the limiting assembly comprises a first limiting part and a second limiting part, and the first limiting part and the second limiting part are oppositely arranged in the first direction. The driving assembly is connected with the transmission assembly and drives the transmission assembly to move, the transmission assembly drives the first limiting component and the second limiting component to move in the opposite direction or in the back-to-back direction, and therefore the distance between the first limiting component and the second limiting component can be adjusted, and the first limiting component and the second limiting component can clamp a cut-part. When the first limiting part and the second limiting part clamp the cutting piece, the angle of the cutting piece can be au