Abstract: An apparatus (1) for the insertion of weft threads in a weaving machine is presented. The apparatus includes a nozzle holder (9) and, secured thereto, at least one nozzle (3) with a mixing tube (6) for the insertion of a weft thread (2) as well as a clamping device (7) which can be charged with a medium in order to firmly clamp a weft thread which is introduced into the nozzle. In addition the apparatus (1) contains at least one control valve (8) which is arranged at or in the nozzle holder (9) or nozzle (3) in order to control the clamping device (7).

Abstract: A method for the pressure regulation in a weaving machine (1) is presented, in particular in an air jet weaving machine having a pressure regulating system (10) and a weft insertion system for the insertion of a plurality of different weft threads (2, 2?). In the weft insertion system a thread store (2a, 2b, 2a?, 2b?) and a main nozzle (3, 3?) is provided for each different weft thread, with the main nozzle drawing off the respective weft thread from the thread store and accelerating it during the insertion. In addition, there is provided in the pressure regulating system, for a group of main nozzles together, a pressure regulator (20) with a pressure sensor (21), a multi-way valve (22) and a regulator (23) arranged separate from it, with the regulator being connected to the pressure sensor and to the multi-way valve, and the pressure regulator (20) is coupled for the insertion of a weft thread to the main nozzle (3, 3?) of the group corresponding to it.

Abstract: An apparatus (1) for the insertion of weft threads in a weaving machine is presented. The apparatus includes a nozzle holder (9) and, secured thereto, at least one nozzle (3) with a mixing tube (6) for the insertion of a weft thread (2) as well as a clamping device (7) which can be charged with a medium in order to firmly clamp a weft thread which is introduced into the nozzle. In addition the apparatus (1) contains at least one control valve (8) which is arranged at or in the nozzle holder (9) or nozzle (3) in order to control the clamping device (7).