Steel seal printing head clamping device

The utility model relates to the technical field of marking information signboards by using a marking machine, in particular to a steel seal printing head clamping device. Comprising a lifting device, a character head clamp and a limiting column, the character head clamp is arranged below the limiting column, the lifting device is arranged around the limiting column, a first positioning ring is arranged above the limiting column, a second positioning ring is arranged on the limiting column in a sleeving mode, pull rods are arranged on the two sides of the first positioning ring, a handle is arranged at one end of each pull rod, and two connecting rods are arranged at the two ends of each pull rod handle and arranged on the two sides of the second positioning ring respectively. A guide rail groove is formed in the anti-loosening ring sleeve. A guide rail is arranged on the outer side of the character head clamp. A hollow circular-truncated-cone-shaped character clamping claw is arranged on one side of the char