Printing device for aluminum ingot continuous-casting machine

The utility model discloses a printing device for aluminum ingot continuous-casting machine, which relates to an attachment of continuous-casting equipment for non-ferrous metals. A printing arm (4) is driven to rotate by a cylinder (11), and the printing arm (4) is arranged on a bearing seat (8) through a rotation axis (7), and the cylinder (11) is connected with the printing arm (4) through a printing rocker (5) and a rotation axis (6). Taking the rotation axis (7) as the center of a circle, the length of arc, which is from the maximum travel position (RH) of the midline of the printing arm (4) in the cylinder (11) to the printing position (HH) of the minimum travel of the cylinder, equals to the distance between the central lines of two neighbouring casting molds (1). A printing head is kept completely vertical to the surface of a cast ingot transiently while printing, and the printing head can rotate together with the cast ingot and the casting mold after printing. The ambiguity and deformation of characters caused by the nonsynchronous movements of the casting mold and the printing head can be avoided effectively.