Method for clamping a weft thread in a jet weaving machine, in particular air-jet weaving machine, clamping device and jet weaving machine

Clamping arrangement including two clamping devices on an air-jet weaving machine,

• which comprises respectively for each clamping device at least one main blow nozzle with a mixing tube for the insertion of a weft thread into a loom shed by a transport fluid ejected from the main blow nozzle, and an actuator arranged outside of the mixing tube, and a movable clamping element, which, through activating of the actuator, is selectively brought into a clamping position in which the weft thread is tightly clamped on a path location of the main blow nozzle and the mixing tube or into a release position in which the weft thread is not clamped, and is held in the respective position,
• characterized in that the clamping arrangement further comprises at least one holding magnet (11), and each respective said clamping element (7) is at least area-wise embodied ferromagnetically, and is arranged so that a clamping force of the respective clamping element (7) in the clamping position thereof is magnetically strengthened by an influence of the holding magnet,
• characterized in that the two clamping devices (5) with the two mixing tubes (2) lying directly next to one another are combined together to form thereof a module unit (18), whereby the two mixing tubes (2) lie in one plane in a mirror-symmetrical arrangement with the actuators (6) facing outwardly, and
• characterized said holding magnet is a common holding magnet (11) that is allocated to the two mixing tubes (2) of the module unit (18).