Abstract
The paper introduces a development of a new stretch nozzle for air-jet looms by support of numerical and experimental methods.
Highlights
The root of the weaving technologies goes back to the early period of human history
The shuttle moving frequency is one of the production limiters. It represents only a small mass, but due to the necessity of ac/deceleration at the ends of the warp, there is some reasonable physical limit. To overcome it the leading of the shuttle had to be substituted by something “nearly massless”
With the help of numerical simulations several tests of a new stretch nozzle design were performed which had led to a new geometry of the inner channel
Summary
The root of the weaving technologies goes back to the early period of human history. During the centuries the loom designs evolved quite slowly. The shuttle moving frequency is one of the production limiters It represents only a small mass, but due to the necessity of ac/deceleration at the ends of the warp, there is some reasonable physical limit. To overcome it the leading of the shuttle had to be substituted by something “nearly massless”. During the following years the air-jet looms had made a big evolution step Different forces were necessary for different weft materials and sizes so for some applications it is suitable to improve the design to increase the production rate, quality and if possible to lower the compressed air consumption.
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