Baling band printing device

The utility model provides a curved offset machine, comprising a cup feed member, a printing device, an arranging for the printing device, a dividing box and a cup retracting member, wherein the printing device comprises a transfer cylinder, a plate cylinder and a color class unit, characterized in that the mounting for the printing device comprises a bottom plate and two wall plates which are arranged on the bottom plate and parallel to each other, and the transfer cylinder, a plate cylinder and a color class unit are arranged on the inner side of the two wall plates. For the arranging for the printing device in the utility model, the printing device is supported by the two wall plates, thereby providing good overall structural rigidity, high-speed and stable operation, significantly higher printing speed and quality than the traditional curved offset machine and better production efficiency and product quality.