Abstract: A gripper for capping machines intended for screwing a cap onto a container adapted to being capped, in particular has a threaded neck for being capped. The gripper has a body capable of revolving on the axis of rotation, and at least two levers adapted to taking at least two different positions. The first position in which it is possible to insert a cap between the gripper levers and the second position in which the cap is locked between the gripper levers at least rotationally. At least one moving guiding shackle hinge-is mounted to the body and at least one lever which is slidingly mounted to the gripper body by means of a guide enabling movement of the lever in a horizontal direction, perpendicular to the axis of the gripper, and the end of the guiding shackle is slidingly and rotatably mounted to the at least one lever.

Abstract: A gripper for capping machines intended for screwing a cap onto a container adapted to being capped, in particular has a threaded neck for being capped. The gripper has a body capable of revolving on the axis of rotation, and at least two levers adapted to taking at least two different positions. The first position in which it is possible to insert a cap between the gripper levers and the second position in which the cap is locked between the gripper levers at least rotationally. At least one moving guiding shackle hinge-is mounted to the body and at least one lever which is slidingly mounted to the gripper body by means of a guide enabling movement of the lever in a horizontal direction, perpendicular to the axis of the gripper, and the end of the guiding shackle is slidingly and rotatably mounted to the at least one lever.