Die-cutting machine convenient to adjust

The utility model discloses a die-cutting machine convenient to adjust, which comprises a first roller type conveying belt, a shell is mounted on the top surface of the first roller type conveying belt through screws, a U-shaped groove is formed in the outer wall of the shell, and a U-shaped sliding plate connected with the U-shaped groove in an up-down sliding manner is arranged on the U-shaped groove; the anti-clamping die cutting device has the beneficial effects that the arranged anti-clamping die cutting assembly can stably cut a paperboard in a corresponding shape from a paperboard, the cut paperboard cannot be clamped in the die cutting die and cannot stay on the residual paperboard, when a paperboard of another specification needs to be cut, only the die cutting die needs to be replaced, other parts can be repeatedly used, and the die cutting device is convenient to use and high in practicability. The top face of the first roller type conveying belt is provided with an opening, the opening is matched