JOURNAL OF TEXTILE RESEARCH ›› 2016, Vol. 37 ›› Issue (10): 130-134.

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Design on yarn selection mechanism of broche jacquard wrap knitted machine

  

  • Received:2015-06-26 Revised:2016-07-11 Online:2016-10-15 Published:2016-10-31

Abstract:

In order to develop the products of warp knitted broche jacquard, the paper studies the design problem of the correspinding selection hook-needle motion mechanism. The mechanism os the key structure in the machine. The motion of the selection hook-needle requires reciprocating mowements with dwells. According to the requirements of the requirements of variation, stroke, long distance transmission in the expecting motion, the correspinding selection hook-needle mechanism is type synthesized a planar linkage-cam combined mechanism which is connected in series by an eight-bar linkage and a cam mechanism. Then the graphical inversion method is adopted to figure out the dimensions of the two groups of planar four-barmechanisms. And the dimensions of slide mechanism and curve of can are built by using analytical method. For the selection hook-needle in RJWB3/2, the stroke is 19 mm. And the cam nagles for rise, outer dwell, return, inner dwell are 150°,30°,80° and 100°, respectively. Based on these parameters the corresponding dimensions of linkages and curve of the cam are designed.

Key words: warp knitted machine, jacquard, broche, linkage mechanism, cam mechanism

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