Method and device for joining textile threads by splicing with the aid of compressed air

Method of joining textile threads, respectively, formed of a plurality of twisted-together filaments by splicing the threads with the aid of compressed air, the threads being inserted into a splicing chamber having a compressed-air channel communicating therewith, the threads being fed from two sides of the splicing chamber and being held by respective thread holding members, which comprises, prior to splicing the threads, freeing the threads of the twist formed therein in a region thereof at which the splicing connection is to be formed, and removing excessive lengths of ends of the threads by plucking.

Compressed-air splicing device for textile threads, respectively formed of a plurality of twisted-together filaments having a splicing chamber with which a compressed-air channel communicates, and thread holding members for holding respective textile threads inserted into the splicing chamber from two sides thereof, comprising a controllable thread-twist changing device disposed in a respective region of the threads extending from the splicing chamber to the respective thread holding members, said thread-twist changing device comprising a rotatable thread holding member.

Compressed-air splicing device for textile threads, respectively formed of a plurality of twisted-together filaments having a splicing chamber with which a compressed-air channel communicates, and thread holding members for holding respective textile threads inserted into the splicing chamber from two sides thereof, comprising a controllable thread-twist changing device disposed in a respective region of the threads extending from the splicing chamber to the respective thread holding members, and including a shifting device connected to said rotatable thread holding member of said thread-twist changing device for shifting said rotatable thread holding member along the axis of the respective thread.

Compressed-air splicing device for textile threads, respectively formed of a plurality of twisted-together filaments having a splicing chamber with which a compressed-air channel communicates, and thread holding members for holding respective textile threads inserted into the splicing chamber from two sides thereof, comprising a controllable thread-twist changing device disposed in a respective region of the threads extending from the splicing chamber to the respective thread holding members, each of said rotatable thread holding members of said thread-twist changing devices, respectively, comprising a gear having teeth meshing with the teeth of a ring gear common to said rotatable thread holding members.

Compressed-air splicing device for textile threads, respectively formed of a plurality of twisted-together filaments having a splicing chamber with which a compressed-air channel communicates, and thread holding members for holding respective textile threads inserted into the splicing chamber from two sides thereof, comprising a controllable thread-twist changing device disposed in a respective region of the threads extending from the splicing chamber to the respective thread holding members, said thread-twist changing device having at least one friction surface bringable into contact with the respective thread and displaceable transversely to the longitudinal direction of the respective thread.

Compressed-air splicing device for textile threads, respectively formed of a plurality of twisted-together filaments having a splicing chamber with which a compressed-air channel communicates, and thread holding members for holding respective textile threads inserted into the splicing chamber from two sides thereof, comprising a controllable thread-twist changing device disposed in a respective region of the threads extending from the splicing chamber to the respective thread holding members, said thread-twist changing device having at least two friction surfaces bringable from opposite sides into contact with the respective thread and displaceable away and returnable in opposite directions.

Compressed-air splicing device for textile threads, respectively formed of a plurality of twisted-together filaments having a splicing chamber with which a compressed-air channel communicates, and thread holding members for holding respective textile threads inserted into the splicing chamber from two sides thereof, comprising a controllable thread-twist changing device disposed in a respective region of the threads extending from the splicing chamber to the respective thread holding members, said thread-twist changing device having a plurality of rollers rotatable in the same direction and spaced from one another a distance less than the diameter of the respective thread.

Compressed-air splicing device for textile threads, respectively formed of a plurality of twisted-together filaments having a splicing chamber with which a compressed-air channel communicates, and thread holding members for holding respective textile threads inserted into the splicing chamber from two sides thereof, comprising a controllable thread-twist changing device disposed in a respective region of the threads extending from the splicing chamber to the respective thread holding members, the splicing chamber having an adjustable sliding cover, and including respective thread severing members for the threads as well as a common actuating device for said thread-twist changing device, said sliding cover and said thread severing members.

Compressed-air splicing device for textile threads, respectively formed of a plurality of twisted-together filaments having a splicing chamber with which a compressed-air channel communicates, and thread holding members for holding respective textile threads inserted into the splicing chamber from two sides thereof, comprising a controllable thread-twist changing device disposed in a respective region of the threads extending from the splicing chamber to the respective thread holding members, and including thread severing means for removing the ends of the threads, said thread severing means comprising plucking devices for the respective threads.