METHOD FOR CLAMPING A WEFT THREAD IN A JET WEAVING MACHINE, IN PARTICULAR AIR-JET WEAVING MACHINE, CLAMPING DEVICE AND JET WEAVING MACHINE

摘要

ABSTRACT A method and a clamping device for clamping a weft thread in a jet weaving machine are proposed. The weft thread wire or strand runs through the beginning section (2,1) and The end section ("2.2) of a mixing tube. The two sections between themselves form an engagement opening (8) and are connected with a first holding magnet (11) by a counter support (3). An actuator (6) in the form of an elastomeric bellows, which comprises a chamber (10), is located on the beginning section (2.1) of the mixing tube. The chamber (10) is connected to a valve (16) via a supply line (20) and is acted on variably with compressed air. By deformation of the actuator (6), a clamping element (7) connected thereto carries out a tilting movement between the counter support (9) and a contact stop part (19), which contains a second holding magnet (12). The holding magnets (11, 12) lead to an exact and reliable clamping of the weft thread (3).