Machine head device of cabling machine

The utility model discloses a machine head device of a cabling machine. The machine head device comprises a central line cylinder, a line nozzle, a first adjusting disc, a second adjusting disc and an expansion piece, the center line cylinder is a hollow cylinder, a sliding groove is formed in the center line cylinder, a cone-shaped line nozzle is detachably arranged at the front end of the center line cylinder, a first adjusting disc and a second adjusting disc are arranged in the sliding groove in a sliding connection mode, and the first adjusting disc and the second adjusting disc are of a disc structure. Sliding blocks matched with the sliding grooves are arranged on the inner ring of the first adjusting disc and the inner ring of the second adjusting disc, the sliding blocks are connected into the sliding grooves in a sliding mode, and an expansion piece is arranged between the first adjusting disc and the second adjusting disc. The problem that the position of a pay-off point of a machine head of an exi