The influence of the main components of the equipment on the output and quality of velvet stripping. The relative speed of the saw blade roller and the plectrum roller
There is a relative speed between the saw blade and the plectrum roller during rotation. The greater the relative speed between the two, the more times the saw teeth scrape and peel off the lint per unit time. When the relative speed is too high, the position of the cotton seeds does not move enough, which can easily lead to uneven peeling, and may even peel off the skin of the cotton seeds together with the short lint, affecting product quality; conversely, if the relative speed between the two is too small, Although it is beneficial to improve product quality, it will significantly reduce the effect of sawtooth stripping. Therefore, the relative speed of the saw blade and plectrum roller is an important parameter in the stripping process.
When stripping the first down, the long fibers belonging to the lint on the cotton are mainly peeled off. The quality standard is mainly based on the length of the fiber. According to the principle of stripping the first down, the first down should be peeled less, and the first down should be peeled off less. The processing capacity is large and the long fibers are small, which is characterized by “getting less out of more” (the cotton seeds contain more velvet and less long fibers are stripped out). For this reason, the process principle of “small vs. less” should be adopted. That is, the relative speed of the saw blade and the plectrum roller should be small to increase the displacement of the cotton and fully strip the fibers.
When peeling off the second down, the long fibers on the cotton have been basically peeled off, and the pile layer remaining on the cotton is thick, numerous, and requires a high lint yield, which is characterized by “getting more out of more” (Cotton contains a lot of velvet, so it requires more stripping). The process principle of “two fasts and one big” should be adopted. That is, the leisure speed of the saw blade and plectrum roller should be accelerated, and the relative speed should be increased to increase the number of times the saw teeth scrape the cotton.
When peeling three layers of velvet, the velvet content on the cotton seeds is significantly reduced, the velvet is short, the velvet layer is thin, and the force is strong. It is required to peel off the entire amount, which is characterized by “less and more” (cotton seeds contain velvet) (small quantity, strive for more peeling), the process principle of “two fast and one big” should be adopted, that is, the speed of the saw blade and plectrum roller should be appropriately accelerated, and the relative speed of the cotton and the sawtooth roller should be appropriately reduced to increase the displacement of the cotton. , which is conducive to even scraping and peeling of the saw teeth.
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