Polyphase loom
The multi-phase loom is a loom that forms multiple sheds at the same time and introduces multiple weft yarns respectively. It is a stepped weft insertion loom that forms multiple continuous sheds. Because within the unit weft insertion time, the weft yarn is pulled by multiple heads and enters multiple weaving openings, the weft insertion rate is higher than that of the single-phase loom, the weft insertion is stable and reliable, and the weft insertion rate of the loom is high. Its biggest feature is that it is suitable for the production of large quantities of single fabrics. At present, the polyphase looms available include drum-type multi-phase rapier looms, chain-belt yarn-clamping type multi-phase looms, multi-shed multi-phase air-jet looms and multi-shuttle circular looms. At the ITMA in Paris in 1999, the Swiss Sultex Group (formerly Sulzer Fabrics Group) launched the M8300 multi-phase air-jet loom in 1999, which can introduce 4 weft yarns at the same time. Compared with the single-phase air-jet loom’s weft insertion speed of 2000m/min, its weft insertion speed exceeds 5000m/min (Figure 5-1). It is a relatively mature multi-phase loom in the world and has formed industrial sales. The following is a brief introduction to the M8300 multi-phase air-jet loom.
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