一种柔性编织底盘的结构及关键问题.

A program of flexible braided chassis was proposed for the limitation that yarn carriers on the chassis must be moved by whole column or row, and the low degree automation and poor application of current equipments that used to braid preforms for 3‐D braiding composites. Also the precision and structure of important components, drive and control of yarn carrier device were analyzed. In the program the power between drivers and yarn carriers was transferred by spring pin, and whether the yarn carriers device is moved by the driver was controlled by electromagnets. While the driving apparatus was reciprocated in two perpendicular directions, the path of any knitting yarn on this chassis can be controlled by changing the status of electromagnets. The maximum freedom in defining the shape and internal structure of braid textiles was provided by this chassis, getting the control program to be adjusted, then the needs of forming various shapes and variable cross‐section performance would be achieved. In addition, the mechanization and automation of braideding apparatus is improved, and a good foundation is laid on the mass production of pretorms. [ABSTRACT FROM AUTHOR]