The deformation of the Polyester DTY Yarn rollers is mostly caused by cast iron rollers.2 Reasonable process configuration .1 The balance state of the cylinder roller When the dynamic balance of the cylinder is poor, the gap between the cylinder and the cover plate is always in dynamic state, when the gap point changes When it is large, the fibers on the cylinder needle surface will free the dry cylinder needle surface under the action of centrifugal force and the elastic recovery ability of the fiber, and the floating fiber will be produced. At the same time, process implementers and process formulators must communicate more and fully understand and understand the connotation of the process to achieve the process. 3. The distance between the cylinder and the cover plate has a great influence on the neps impurities.3 Evaluation method Check the sharpness of the clothing by two-thirds of the width of the clothing. The direction of cylinder operation is forwardThe thickness of the cotton sheet is not uniform (see Figure 9), which causes the convex roller to continuously generate a displacement signal, which causes periodic fluctuations in the draft multiple and generates periodic mechanical Comparison of the mechanical wave positions of the two spectrograms (2)The ruler method is used to analyze the relationship between the channels of the 'chimneys' on the spectrogram It can be seen that there is a corresponding relationship between the main wave and the harmonics, and both have even harmonics and odd harmonics. According to the JWF1312 draw frame The transmission diagram and the process parameters of the machine (6 combined, total draft multiple 6. 04 Conclusion Online monitoring spectrograms and offline monitoring spectrograms have their own advantages.9m, with even harmonics and odd harmonics, so it can be determined that the fault form is non-sinusoidal Asymmetric periodic defects
