Double-label-head 90-degree corner labeling machine

The utility model relates to the technical field of RFID (radio frequency identification) label production, and particularly discloses a double-label-head 90-degree corner labeling machine which comprises a cabinet, an electrical control box is mounted in the cabinet, two extension adjusting mechanisms are mounted at the top of the cabinet, and a first labeling head and a second labeling head are mounted on the two extension adjusting mechanisms respectively. The vertical and horizontal composite labeling machine has the composite function of horizontal and vertical labeling, is high in labeling precision and speed, can rotate the two labeling heads by 90 degrees at the same time to perform vertical labeling and produce vertical composite labels, and is high in efficiency, convenient to operate and high in production efficiency. Transverse labeling can be carried out without moving the two labeling heads, and a transverse composite label is produced; one label head can be rotated by 90 degrees, one label head