Method and apparatus for the insertion of weft threads
AssigneeITEMA (Switzerland) Ltd.
InventorChristoph Jenne
Life of this patent
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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).
Claims11
An apparatus for the insertion of weft threads in a weaving machine, said apparatus including a nozzle holder and, secured thereto, a plurality of nozzles, with a mixing tube for the insertion of a weft thread, at least one clamping device and at least one control valve being provided for each of the nozzles, wherein the clamping device is able to be charged with a medium, is arranged in the region of the nozzle and includes a clamping part and a rest for pressing the weft thread with the clamping part against the rest in order to firmly clamp a weft thread which is introduced into the nozzle, and wherein the at least one control valve provided for each of the nozzles is arranged at or in the nozzle holder or nozzle or clamping device and which is in connection with the clamping device of the respective nozzle in order to control the charging of the clamping device with the medium.
A method for the insertion of well threads in a weaving machine by an apparatus, with the apparatus including a nozzle holder and, secured thereto, a plurality of nozzles, comprising:
- threading a well thread into one of the nozzles, the nozzle being charged with a medium;
- clamping the well thread firmly in the nozzle using a mechanical clamping device of the apparatus and charging the clamping device with the medium;
- inserting the well thread into the weaving machine after releasing the well thread in the nozzle;
- and
- wherein the charging of the nozzle for the threading and/or of the clamping device for the firm clamping is controlled by at least one control valve which is arranged at or in the nozzle holder or nozzle or clamping device.
Dependencies are inferred from the claim text.