Marking device and glass production line

The invention belongs to the technical field of glass production, and particularly relates to a mark printing device and a glass production line, which are used for printing graphic marks on objects to be marked. The marking device comprises a printing tool used for making contact with the object to be marked and a driving structure used for driving the printing tool to move towards the object to be marked in the first direction. The buffer structure is located between the driving structure and the printing tool, the moving structure is used for driving the driving structure and the printing tool to synchronously move to a preset position, and the preset position and the object to be marked are arranged at intervals in the first direction; the buffering structure is used for buffering vibration generated by the object to be marked on the printing tool when the object to be marked makes contact with the printing tool. According to the invention, the problems of how to improve the marking efficiency and how to