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Characteristics of chemical fiber processing technology of carding machine

Author:Xinjinlong Machinery-Fabric Recycling Machine Manufacturer

The ratio of the rotational speed and the linear speed between the licker-in roller and the licker-in roller of the carding machine should not only make the licker-in roll smoothly transfer from the licker-in roll to the licker-in roll, but also make the fibers properly combed, so as to achieve the purpose of clear cotton web and less sliver. . 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. 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). The structure of the double twisting unit of the double twisting machine mainly includes the spindle braking device, the spindle part of the double twisting machine, the yarn winding device, and the special device of the double twisting unit.

The length of the chemical fiber is greater than the length of the cotton fiber, and the linear speed ratio of Xinjinlong and the licker-in is greater than the linear speed ratio of the cotton fiber, generally 1.4-1.7. In the processing of medium and long chemical fibers, in order to reduce the return of the licker-in, the size of the lancet between the licker-in and the licker-in should be slightly larger than the processing size of cotton-type chemical fibers, generally 1.7-2.2. The adjustment of the line speed ratio is usually to change the speed of the licker-in.

If it is considered that the double-sided cylinder is smoothly stripped from the fibers of the licker-in, the excessively large linear velocity ratio of the thorn-thorn silver speed is reduced, and the treatment effect will affect the series of thorns. The strength of the viscose fiber is lower than that of cotton, and the rotation speed of the cylinder should be appropriately reduced. Pole cover contains a defect rate that depends on the speed of the fiber, not when containing a high defect rate, to save material, use a low speed pull cap, usually spinning cotton (eg, grab the cap at half speed during 78 to 156 mm/min).

Doffer speed can be the same as cotton when spinning. The tandem line between the sum of the large and pressure roll ratios of the two Qs depends on the effect of sliver tension in dry drawing. When dealing with synthetic fibers such as polyester, because the holding force between fibers is small, the retractor with tension sub-sliver increases sheep deterioration.

To do this, the tension control draft should be small without slackening down the fleece. The sliver quantification is directly related to the quality of the sliver. The weight of the sliver is too light, it is easy to make the cotton net float, making it difficult to peel the cotton, and affecting the quantitative passage of the sliver into the room. Due to the good elasticity of the synthetic fiber, the sliver is thick and fluffy, and it is easy to cause a bell mouth and a coiled inclined tube to be blocked. etc. ills.

Therefore, in addition to increasing the pressure of the heavy press, it is also advisable to control the intended weight of the synthetic fiber sliver within the range of 20~25 grams/5 meters (280~350 Merlin/5 yards).


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