JOURNAL OF TEXTILE RESEARCH ›› 2016, Vol. 37 ›› Issue (08): 125-131.

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Influence of folding jet orifice position on air flow characteristics in pure pneumatic tucker

  

  • Received:2015-04-16 Revised:2015-06-30 Online:2016-08-15 Published:2016-08-05

Abstract:

In order to omprove the folding efficiency of a tucker and solve the problem on the analysis of the influence of the folding jet orifice position on air flow characteristics a 3-D model of the pure pneumatic tucker, by changing the geometrical parameter of the folding jet orifice and the numerical simulation of steady flow was used to simulate the folding air flow field. By comparing the results of numerical simulation and the results of test analysed the effect of folding jet orifice geometrical on the efficiency of this device. The rational parameters is obtained as follows: the spacing of the two group of folding jet orifices f = 3 mm, the spacing of the folding jet orifices in esch group e = 3 mm, the spacing of each group of folding jet orifices and the bottom of the Y type yarn guiding port d = 7.5 mm. The results show that: changing the geometrical parameter of the folding jet orifice mainly influences the interplay of the several parallel jet-flows, the rational parameters by decreasing the vortices between the jet-flows and ensuring the stability of the jet-flow to influence the effect of the weft folded into the shed.

Key words: pure pneumatic tucker, folding jet orifice position, air flow field, numerical simulation

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