PROCESS FOR SPINNING AND/OR TWISTING YARNS, MACHINE FOR SPINNING AND/OR TWISTING YARNS AND METHOD TO TRANSFORM A MACHINE FOR SPINNING AND/OR TWISTING YARNS

摘要

A process of yarn spinning and/or twisting, in which a yarn runs between a yarn feeding means (1) towards a yarn picking means is provided. A driving means rotates the yarn picking means at a predetermined speed, in which a stretch of balloon is generated in a point located between the feeding means (1) and the picking means by the presence of twisting means. A helical path with oscillating spiral diameters exists between the yarn feeding means (1) and the yarn picking means, so that the path of the yarn, by the operation of the twisting means, creates a body of revolution from a diameter generating a balloon that has at least a hyperboloid structure (E) forming at least two stretches of balloons (B) consecutive to each other. A machine for performing the process is also provided.