What does an opener do? How to judge whether an opener is good or bad?

What does an opener do? Openers are mainly used for loosening materials such as fibers, cotton, and textiles. By tearing, large pieces of fibers are loosened into small pieces or bundles of small fibers, and mixed and removed during the opening process. Usually, an opener consists of a pair of feed rollers or rollers and an opening cylinder. The opening cylinder is equipped with corner nails, combing needles or needle clothing to make the opening effect better. Some rollers are also equipped with different rollers, such as working rollers and stripping rollers. Different structures make the opening effect, mixing effect, and impurity removal effect of the opening equipment significantly different, and different production lines should use different forms of opening equipment. At the same time, we can also choose an opener according to the processed raw materials, and the opened fibers will enter the carding machine for processing. When the old quilt needs to be reprocessed, an opener will be used, which is the source product of home textile production. With an opener, the old quilt can be torn apart in minutes, and the combed new cotton batt can be made into a fluffy new quilt again. How to judge the quality of an opener? In fact, it is reflected in the various quality standards and falling conditions of the semi-finished products (fiber rolls or fiber layers) after opening. This includes: 1. The types and total number of residues and defects in semi-finished products. 2. The structure and symmetry of semi-finished products. 3. The composition of short fibers in semi-finished products. 4. The opening of fiber blocks is expressed by the average net weight of fiber blocks (G/block), enterprise bulk density (KG/m3) or the sedimentation rate of fiber blocks in the air. 5. The total number of spinnable fibers in the litter. In order to further improve the opening quality and yarn quality of fiber raw materials, the development prospects of opening machine processing technology are: improving the mode and structure of opening components, generally using combing components such as licker-in rollers, combing needles to find beaters or combing needles to cylinders, improving the opening degree of fiber blocks, and improving the structure and symmetry of semi-finished products; in the entire process of pre-opening of fiber materials, random and violent blows are often used to avoid grabbing-type violent blows as much as possible; using cyclones and other cotton opening and cleaning methods to prevent fiber damage and residual cotton breakage, thereby reducing yarn defects.