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Overview Classification and Characteristics of Cotton Ginning Machines



Overview Classification and Characteristics of Cotton Ginning Machines The ginning process is the main process of cotton finishing, so the gin is the main equipment for cotton fini…

Overview Classification and Characteristics of Cotton Ginning Machines

The ginning process is the main process of cotton finishing, so the gin is the main equipment for cotton finishing. According to the ginning principle, the gin can be divided into two categories: top roller gin and sawtooth gin.
1. Top roller gin
Top roller gin has the characteristics of simple structure, low cost, slow ginning action, and difficulty in breaking cotton fibers. Therefore, this kind of gin is suitable for sorting long-staple cotton and fine cotton with poor maturity. Velvet cotton.
The embossing effect of the top roller is relatively gentle, and it is not easy to damage the fibers. There are also fewer defects in the rolling process, but there are yellow roots. It is suitable for finishing long-staple cotton and low-grade cotton. Seed cotton can also be finished with a roller gin. The lint is in the form of sheets.
2. Sawtooth gin
Sawtooth gin uses hundreds of circular saw blades to grab the cotton, and carry the cotton through the ribs embedded in the middle of the saw blades. Since the cotton is larger than the gap between the ribs, it is blocked. Thereby the cotton fibers and cotton seeds are separated.
The sawtooth gin has special impurity removal equipment, so the sawtooth cotton has low impurity content and low lint content. However, due to the intense saw-tooth ginning, it is easy to damage longer fibers and easily produce ginning defects, such as neps and cords, and a high content of fiber scraps. Because the fibers are pulled down by the saw teeth during cotton ginning, the lint is in a loose state. The output of the sawtooth gin is high, and all fine cotton is ginning with sawtooth.
Generally speaking, the yarn strength and evenness of sawtooth cotton are relatively high, but there are many defects in the rolling process, and the yarn has more neps and impurities. Top roller cotton yarn has relatively few neps and impurities.
See Table 8-1 for a comparison of the performance of sawtooth gin and top roller gin.

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