The depth resolution rotor diameter how to affect the yarn count

Rotor diameter sizethe product numberhas a great association process speed. In rotor spinning machine power consumption, the consumption of spinning cup, the largest power generally accounted for more than 50%. And power consumed by a rotor diameter related, inder to reduce power consumption, after growth can only be rotor diameter decreases.

From the structure of rotor spun yarn yarn, the yarn surface has a lot of winding fiber, article on the yarn strength, dryhairiness. And the longer the fiber length, the diameter of rotor, the smaller is easy to form wrapped fiber. Rotor speed to increase, will reduce the diameter, diameter decreased after not spinning fine count cotton yarn, especially more than 60 fine yarn. This is because the general to more than 60 of the yarn spinning long-staple cotton, cotton fiber body between 3540 mm in length, so the rotor diameter decreases the optimal spinning count will be subject to certain restrictions.

At present, the spinning rotor spinning count is in commonly 145 Tex (ne4) ~ 10 Tex (ne60) range. Due to large power consumption, large diameter rotor spinning tension is also relatively large,because of the small in terms of the quality of yarnthe differences between the diameter of the rotor, spinning fine Tex yarn uneconomic, so used to low spinning yarn performance better, but small diameter rotor can open speedsmall diameter, high condensing tank is relatively narrow, low spinning yarn is difficult,spinning cup economic count is along with the increase of rotor speed, so small rotor is sui for spinning high count.

So, when choosing rotor diameter size, not only to consider how to use the diameter of the rotor, consider the fitness of rotor spinning count economy, otherwise not only hard to spinning, economic benefit is also not ideal. - net friend ni string I think "XiaoFang cup cannot low spinning yarn, the spinning cup cant spinning high count" does not have to set up, various spinning count can actually.

Good twist largehigh count cotton assorting, with big rotor low production ratelow production. If open high-speed spinning cup itself weight, high speed rotating centrifugal force is big also, when spinning, when the yarn tensionstrong close to is easy to break. In addition, the high count cotton feeding amount is small, in the cotton spinning cup setting tankarticlelow effect, dry is poor, so spinning high count to use XiaoFang cup,vice versa.
In general, low spinning yarn is in pursuit of high yield,low number of fibrous root yarn cross section than high countso on craft design twist is relatively lower.

Rotor spinning production is the bottleneck of yarn winding speed, winding speed = / twist rotor speed), for example, equipment winding speed limit is 160 m/min, ne7s yarn spinning system, the design of twist is 400 twist / 10 centimeters, the highest speed, rotor can only open to 160 x 400 = 64000 r/min. Rotor spinning line of coherence relies mainly on the rotor rotating centrifugal force, centrifugal forcerotor is proportional to the diameter, so as the twistthe limitation of the winding speed limit in rotor speed decreases accordingly, the consequences of this is within the cup fibre cohesion is declining, which may lead to a difficult spinningyarn quality decline. So low spinning yarn only through increasing rotor diameter to increase the centrifugal force, so as to ensure the cohesion of required fibre cohesion. This should be low a gauze with big rotor of the key reasons.

Using XiaoFang spinning high count of truth is the same. Due to the design of the high count, noting that the generally high twist to limits must have a high rotor winding speed, high speedbig rotor can lead to excessive centrifugal forcehigh load, in this process, energy consumption is not scientific.

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