Fancy yarn spinning device

Abstract

This is a fancy yarn spinning device with the number of counts and twisting varying according to the variation of waveforms, designed with pre-defined waveforms, working with fixed cycles, fixed amplitudes, or random cycles, and random amplitudes, which serve as drafting and twisting parameters for the ring spinning machine. This device involves a servomotor and a inverter, for respective control of the revolutions of front, middle, and rear rollers of the ring spinning machine and the spindle, so the drafting rate and twisting of all areas of the ring spinning machine can change continuously with pre-defined settings, to produce yarns with variable number of counts and twisted conditions. The design of variable waveforms can also achieve different touch and visual feelings. Compared with the conventional models that can only produce slub yarns with drastic change of counts, or twisted yarns with simplified twist changes, this device combines the features of the two, and is capable of producing new yarn types with more variations, better hand touch and better comfort.

What is claimed is:  
     
         1 . A fancy yarn spinning device, with the design of pre-defined waveforms, in combination with fixed cycles, fixed amplitudes, or random variable cycles, random variable amplitudes, serving to control the drafting and twisting parameters of ring spinning machine, to produce fancy yarns with variable number of counts and twisting that change with variable waveforms, this device involving a servomotor and a modulator for respective control of the revolutions of front, middle and rear rollers of the ring spinning machine and the spindle, so the drafting rates and twisted conditions of all regions on the ring spinning machine can vary continuously according to pre-defined settings, to make yarn products with thick and thin places.  
     
     
         2 . The fancy yarn spinning device as claimed in  claim 1 , with its system structure and production flowchart including the following: 
 Waveforms have been planned, designed and programmed into an industrial computer, such industrial computer then converts the waveforms into mathematical functions, while the output terminal is connected to a programmable control unit, for respective control of the ring spinning machine and the steel plate driver, spindle motor driver, front roller driver, middle roller driver, and rear roller driver, so the revolutions of all drivers of the ring spinning machine, such as the drafting rate, twisting of the yarns, and spindle winding can be changed according to the variation of parameters, to produce yarn products with variable waveforms as pre-defined.    
     
     
         3 . The variation yarn spinning device as claimed in claims  1  and  2 , wherein the setting of waveform parameters includes the cycle setting, frequency setting and random setting.