Abstract:

To confirm the actual air pressures of the main nozzles and vice-nozzles for air jet loom, this paper develops an air pressure formula by using the least square method and taking JAT 710 air-jet loom as an example. Based on the allocation principle of the air-jet loom’s nozzle air pressure, 76 reasonable pieces of statistics of its actual air pressure allocations were selected from 512 ones. According to the theoretic and data analysis, the formula of the nozzle air pressure was deduced. The stepwise regression method was applied to figuring out the regression equation of the main nozzles’ air pressure, based on the weaving parameters of the woven fabrics. The deviations between the predicted and the actual air pressures of 94.67% main nozzles are within ±15%. Then another 18 allocation of reasonable nozzle air pressure are used to verify the regression equation. It turned out that their deviations are all within ±15%. The experimental results demonstrate that the regression equation can predict the allocation of nozzles air pressure reasonably and accurately so that production efficiency is improved.

Key words: air-fet loom, jet nozzle pressure, stepwise regression method, production efficiency