Automatic Weft Package Change Systems
topic
Automatic weft package change systems detect approaching package exhaustion by monitoring feeder drum coil count reduction, automatically splicing or knotting the tail of the exhausting package to the start of a pre-positioned replacement package before the feeder drum empties, maintaining continuous weft supply without loom stop, with reserve package magazines on the loom creel holding pre-positioned replacement packages for each colour that enable multiple automatic changes before manual magazine reloading is required.
Role
Eliminates the loom stop time associated with manual weft package change by automatically splicing the new package to the exhausting yarn before the feeder empties, providing significant efficiency improvement in high-speed air-jet weaving where manual package changes every 30 to 60 minutes at maximum speed would represent a material fraction of potential production time, with automatic change reducing this downtime to near zero and reducing operator workload for weft management.