Metal tank waste trimming and cutting device

The trimming and cutting-off device for the waste of the metal tank ensures that the waste is discharged. The shearing die specifically comprises an upper shearing die and a lower shearing die which are arranged up and down, at least two trimming cutting edges are arranged on the face, close to the lower trimming die, of the upper trimming die, the slitting blade between every two adjacent trimming cutting edges is of a cambered surface structure, and each cambered surface structure is in continuous and smooth transition from the low point portion of a certain trimming cutting edge to the highpoint portion of the corresponding adjacent trimming cutting edge. In the above technical scheme, the above technical scheme is adopted, a plurality of notches are cut in the waste material by the edge cutting edge; then, the waste is cut into two, three, four or more pieces by the arcs on the inner sides of the slitting blades; due to the fact that the multiple trimming cutting edges can automatically cut the waste into