Improvement Analysis Of Semi Worsted Blowing Carding Equipment

< p > > a href= "http://www.91se91.com/news/index_c.asp" > semi worsted < /a > is a new spinning technology that has arisen in recent years. It is also the fastest growing a a target= _blank href= http://www.91se91.com/ in the last 10 years.

From the technical point of view, semi worsted overcomes the disadvantages of the long worsted spinning process, which greatly saves production costs.

From the market perspective, semi worsted products meet the current trend of fabric functional diversification and achieve the blending of different fibers.

However, semi worsted yarns still have some defects that cannot be overcome, especially yarn evenness, anti fuzzing and sphericity.

Through years of production practice, we found that controlling the quality of semi worsted blowing carding process plays a vital role in the quality of the whole worsted yarn.

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The two is the cotton box. After the raw material enters the cotton trunk, the main function of the cotton case and its matching self levelling is to control the cotton roller's speed according to the change of the thickness of the cotton feeder when the raw material enters the cotton box, so as to ensure the quality requirements of the technological requirements. Three, the carding machine is used as a professional carding equipment, and the carding machine loosening and combing and removing the cotton layer provided by the cotton box, so that all the curled and lump raw material groups become a basically stretched single fiber state, and in the process, the impurities and short liners left by the flower cleaning process are removed, and then a certain specification of cotton sliver is stored in the cotton sliver cylinder for use in the drawing process. < p > semi worsted blowing carding equipment is generally made up of 3 parts: one is feeding the hair bucket, which mainly plays the role of loosening, and also has the effect of mixing and removing impurities.

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< p > in many a href= "http://www.91se91.com/news/" > spinning process > /a > route, the biggest feature of semi worsted technology is strong adaptability to processing materials, it can blend cotton, wool, hemp, silk and various chemical fibers in any proportion.

In view of the characteristics of semi worsted spinning process, the semi worsted spinning equipment should have special performance requirements: < /p >

< p > first, there must be a strong and lasting mixing effect.

The mixing of different raw materials and the spinning of single materials show great differences in spinnability. This requires that the semi worsted blowing carding equipment, especially the carding machine, must have large technological adjustment space. Moreover, because of the density difference of different raw materials and the high speed operation of blowing carding equipment, raw materials are easily separated after carding. In order to avoid the above phenomena, the blowing and carding equipment must have a strong and lasting mixing effect.

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< p > second must have precise feed to the system.

It is also based on the reasons of different raw materials blended spinning. Semi worsted products tend to produce uneven quality problems. We must strictly control the traction process of each process, find problems from the source, strictly control the production quality of blowing carding, and ensure the accuracy of feeding and self leveling process control.

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< p > third must have reliable carding system.

The blowing carding equipment is directly related to a series of quality problems such as wool, pilling and product sliver of semi worsted yarns.

It is easy to damage fibers by heavier or lighter carding. In order to avoid these problems, it is necessary to take into account the technological configuration requirements of different raw materials in the carding selection and carding process configuration of carding machines, and comb and mix the fibers of different raw materials reasonably and effectively.

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< p > for the semi worsted "a href=" http://www.91se91.com "blowing carding equipment < /a > must have the above functions and characteristics, during the use of the blowing carding equipment made necessary improvements.

Feeding the wool bucket is the first process after raw material and wool. The feeding device has simple structure, so it only plays a role of initial loosening. The biggest function of feeding the wool is to feed raw materials.

It has been proved by practice that when feeding the wool hopper at the same time supplying 4 cotton bins, it is often caused by a series of influencing factors such as air volume, speed, distance and so on, resulting in uneven feeding of cotton box raw materials. After a lot of experiments, a series of two connection modes are selected to reduce the power of the combing fan to reduce the air volume, thus ensuring continuous feeding of raw materials.

The air pressure switch in the cotton box is replaced by the pressure sensor, and the pressure stability in the cotton box is greatly improved by changing the pressure control system. In addition, the follower in the cotton box is pformed to cotton roller, and the center axis of the roller is thickened to prevent the material mass in the cotton layer caused by the extrusion deformation of the roller.

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< p > all kinds of card clothing to control the self levelling system and combing effect of raw materials are selected. According to the reliable carding effect of the blowing carding unit, the cylinder knitted fabric with higher tooth density, lower tooth height and larger tooth angle is selected.

The doffer, whose pfer function is to be selected, should choose higher doffer clothing.

In addition, the role of fixed cover is fully emphasized.

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