Novel cone mechanism

The utility model discloses a novel cone mechanism which is formed by a large sheet, a middle sheet and a small sheet. The large sheet is provided with a first short edge face, a first long edge face and a circular arc face, wherein the first short edge face and the first long edge face are perpendicular to each other, and the first circular arc face is connected with the other end of the first short edge face and the other end of the forst long edge face. The middle sheet is provided with a second long edge face, a second short edge face, a second circular arc face and a third circular arc face, the second long edge face and the second short edge face are parallel, and the second circular arc face and the third circular arc face are connected with the two ends of the second long edge face and the two ends of the second short edge face. The small sheet is provided with a third long edge face, a fourth circular arc face, a fifth circular arc face and a third short edge face, wherein the third long edge face is parallel to the second short edge face, the length of the third long edge face is equal to that of the second long edge face, the radian of the fourth circular arc face is identical with that of the second circular arc face, the radian of the fifth circular arc face is identical with that of the third circular arc face, the length of the third short edge face is identical with that of the first short edge face, the fourth circular arc face and the fifth circular arc face are oppositely arranged, and the third long edge face and the third short edge face are oppositely arranged. The large sheet, the middle sheet and the small sheet are spliced and welded to solve the problem that leftover materials are too many in existing type setting and discharging, and meanwhile a product is attractive after being integrally assembled and welded and meets the product quality requirement.