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AssigneeLindauer Dornier Gessellschaft Mbh
InventorMarkus Gielen
Estimating the term…
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 (9). 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).
Method for clamping a weft thread in a jet weaving machine, especially air-jet weaving machine, in which a weft thread is blown into a loom shed by means of a transport fluid by at least one main blow nozzle with mixing tube, and on its path through main blow nozzle and mixing tube is temporarily clamped by a movable clamping element, whereby the movable clamping element, by activation of an actuator arranged outside of the mixing tube, is selectively brought into a clamping position 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 force of the movable clamping element (7) in its clamping position is magnetically strengthened.
3-22. (canceled)
Clamping device on a jet weaving machine, especially air-jet weaving machine, which comprises at least one main blow nozzle with mixing tube for the insertion of a weft thread into a loom shed by means of a transport fluid ejected from the main blow nozzle, with 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 main blow tube and 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 device (5) comprises at least one holding magnet (11), and the clamping element (7) is at least area-wise embodied ferromagnetically, and namely in such an arrangement that the clamping force of the clamping element (7) in its clamping position is magnetically strengthened by the influence of the holding magnet (11).
Dependencies are inferred from the claim text.