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Carding machine dust removal knife height and angle

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

When the distance between the card feeding plate and the small drainage bottom plate is certain, the height of the card dust collector affects the distribution of the lengths of the first dripping zone and the second dripping zone. Special equipment for the textile industry on the winder. As the last process of spinning and the first process of weaving, winding is the link between the past and the next.“bridge”Therefore, it occupies an important position in the textile field.

Carding machines are used to process cotton fibers and chemical fibers and belong to textile machinery. According to the spinning process, carding is an important process. The front process of the carding machine is the opening and cleaning machine, and the latter process is the drawing frame (carding process) or the sliver coiler (combing process).

During the spinning process of the spinning frame, the semi-finished roving or sliver is drafted, twisted, and wound into a spinning machine. The combed sliver and the needle-carding machine combine the sliver, the needle row is drafted to improve the sliver structure, and the roving is further spun into spun yarn on the ring spinning frame, which is the main spinning machine. Because broken seeds, sterile seeds, feces and other large and easy-to-fall impurities mostly fall in the first falling area, reducing the dust removal knife means increasing the length of the first falling area, so that larger impurities will fall more. At the same time, the adhesion layer of the airflow driven by the um thickens with the increase of the length of the drop zone, the fibers and impurities floating in the boundary layer are more blocked by the dust-removing knife, and the amount of cotton falling in the second drop zone decreases, however, the car The overall rate of cotton fall on the back of the abdomen still increased. On the contrary, when the dust removal knife of the carding machine is raised, the first crumb area of ​​the cotton is reduced, the length of the second crumb area is increased, and the falling speed of the cotton at the back is still reduced.

Therefore, the grade of the dust removal knife should be determined according to the percentage of cotton lap and its impurity content. The height adjustment range of the dust removal knife of the 186 card is 6 mm from the frame soil (about % soil). The installation angle of the dust removal knife will affect the airflow on the back of the knife.

When the angle is small, the airflow in the direction of the back flow of the blade can easily generate vortex combs at the back flow of the blade, which interferes with the normal flow of the back flow of the blade and weakens the backflow effect of the back flow of the blade on the small leakage bottom air inlet. 186 card dust removal knife installation angle adjustment range 75-90.


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