The way bezkoncowego spinning and a device for its implementation

 

(57) Abstract:

Usage: textile industry, spinning production. The invention is: to improve the physical-mechanical properties of the yarn exercise hydration of the fibers at the time of sampling of the fibrous product. A device for implementing the method comprises a channel for supplying moistening of the working environment, the input of which has the shape of a confuser, and the output cone. Cross section output side of the channel is represented by an ellipsoid shape, the major axis of which is located so that provided a uniform dampening of the working environment across the width of the barb fibers. 2 C and 2 C.p. f-crystals, 1 tab., 4 Il.

The invention relates to the textile industry and can be used in spinning to produce yarn of cellulose fibers and mixtures of them.

The known method bezkoncowego spinning, which consists in sealing tapes, sharing her teeth discretizing drum to separate fibers, applying discrete flow to the torsion-forming body, thickening them in the ribbon and twist in the yarn.

The known device for the implementation of this ways is once, placed on the feed table to the feed cylinder and discretizing drum, and the node sorochintsi consisting of an air channel and catching channel connecting with a team of camera torsion-forming body.

A disadvantage of the known method and device is that in the process of diskretizatsii rupture of fibers (decrease in average length), damage to the fibers (loss of strength), the gap between the small ends (2 5 mm) fibers and increase their crackaveli, which leads to the reduction of quality of the obtained yarn: reduced strength, increased hairiness, and, consequently, increases the breakage of the yarn decreases the performance of the equipment. In addition, as technological process reduces the moisture content of the processed fibers, leading to increased friction of the fibers, the growth of static electricity, and therefore increase breakage.

Closest to the proposed method is a method bezkoncowego spinning, which consists in sealing the fibrous product, its sample rate, the wetting of the fibers by steam, thickening fibers and twisting them into yarn.

Closest to the proposed device allenou funnel, feed table with the feed cylinder, discretetime drum, the node sorochintsi and Borodulina torsion-forming body and a conduit for supply moisturizing working environment.

Hydration of the fibers after a discretization allows to increase the frictional forces between them, thereby increasing the strength generated from them yarn.

Change other qualitative and structural characteristics of the yarn cannot be achieved by hydration in this area as the most critical for fiber processes the processes of sampling occur without improvement of physical and mechanical properties of the fibers. Namely, in the process of sampling the strength of the fibers is crucial, as the fibres are exposed to intensive mechanical stress discretizing drum, and at their low strength, they break up, there is separation of the small ends, increases their kruckewitt and due to the insufficient length of the fiber for mutual coupling by twisting increases the hairiness of the yarn.

The objective of the invention is to provide a method bezkoncowego spinning and device for its implementation, providing technical result consists in the improvement of f is allcauses in compaction of the fibrous product, its sample rate, the hydration of the fibers, thickening fibers and twisting them into yarn, is achieved by the fact that the wetting of the fibers is carried out in the time discretization of the product.

This technical result in the device for bezkoncowego spinning, containing accommodated in the housing site sampling o funnel feeding table with the feed cylinder, discretetime drum, the node sorochintsi and Borodulina torsion-forming body and a channel for supplying moistening the working environment is achieved in that the inlet channel for feeding moisturizing working environment has the form of a confuser, and the output part has the shape of a cone and is made in the cross section of the ellipsoid when this channel for supplying onlineusa working environment is made in the case of node sampling with the location of the major axis ellipsoid cross section output side of the channel, supplying the working fluid for the entire width of the barb fibers.

The inlet channel for feeding moisturizing working environment is made adjustable depending on the form of fibers.

The ratio of the lengths of the confuser and diffuser channel for supplying moistening the working environment varies from 2 is the duty to regulate the penetration of water vapor into fibers, what contributes to the improvement of the conditions of formation of the yarn. Thus it is possible to reduce the modules longitudinal and transverse elasticity of the fibers and, therefore, increase their flexibility, which is accompanied by a decrease in the number of breaks increases the adhesion between the fibers. In the area of intensively sampling processes of electrification of the fiber due to the increase of the friction forces. Hydration of the fibers in this zone can reduce their electrified, resulting in improved process of transportation of the fibers, therefore, the process of forming yarn. In addition, increasing the strength of the fibers, reducing their stiffness and electrified as the result of doublegene fibers in the process of sampling is accompanied by a reduction in the percentage of output short fibers, which also affects the structure and properties of the resulting yarn. Improving physico-chemical properties of fibers at the initial stage of its processing on a spinning machine can improve predmosti short fibers, since it increases the degree of their raspalennoe and mutual coupling by twisting will remove them together with weed impurities. Increased output of yarn by saving raw materials.

In Fig. 1 shows the device in section; fizazi device for bezkoncowego spinning installed discretetime drum 2, to which by means of a feed table 3 and the feeding cylinder 4 through the sealing funnel 5 is fed fibrous tape 6. In the housing 1 has a channel 7 for supplying moistening of the working environment, for example in the form of steam, air channel 8 node sorochintsi and catching channel 9, connected with the team of the camera 10 for removal of trash, and channel 11 for transporting the fibers in the spinning rotor 12.

Channel 7 for submission is at an angle to the front of the frontal plane 13 of the device equal to 35 45othat allows you to bring the working medium (steam, liquid) directly to the bit 14 of the fibrous tape 6 throughout its width.

Channel 7 consists of 2 parts: input part 15 made in the form of confuser, from the end of which is fitted with a removable fitting 16 that allows you to change the section of the inlet openings of the inlet part 15, and an output part 17 made in the form of a cone, the outlet of which is elliptical in shape (Fig.3). Major axis of the elliptical cross section output side is along the width of the barb 14 fibers.

Experimentally it is established that the ratio of the lengths of the confuser and diffuser are made in the range of 2oC1 to 3oC1. This in the e process parameters: speed, pressure, spontaneous absorption of the working environment in the area of sampling.

The device operates as follows.

Fibrous tape 6 passes through the sealing funnel 5, then between the feed table 3 and the feed cylinder 4. The rotation of the feed cylinder 4 tape 6 in the form of a barb 14 is supplied to diskretiziruetsya the drum 2, which with the help of tooth headset (not shown) separates the fibers. Channel 7 directly in the area of the sampling fiber receives steam from a steam generator (Fig. not shown), which is processed beard fibrous tape 14. Pairs in the channel 7 is absorbed spontaneously in the generated differential pressure in the area of sampling, and the amount of pressure supplied to the pair increases due to the design of channel 7 (Fig. 2), the input part 15 which has the form of a confuser, and the output portion 17 through which the handle barb fibrous tape 14 made in the form of a cone. Due to this variable cross-section channel pressure facing pair increases, and it also avoids reducing the rate of pressure due to aerodynamic losses. At inlet 15 channel 7 has a removable hand the type of the processed fiber material.

Ellipsoid outlet 17 channel 7 as close as possible to the beard of fibers 14 and its major axis is located so that allows more evenly to handle the bit 14 of the fibrous tape 6 along its entire width.

Disconnected and steamed fibers are introduced into the channel 11 and through him in the spinning rotor 12. The dirt and impurities selected in the process of separation of fibers disposed on a capture channel 9 which communicates with the air channel 8 which communicates with the atmosphere. Catching channel 9 is included in the expansion chamber 10 at a tangent.

An example of the method.

The yarn linear density of 29 Teks were obtained from cotton fibers in open-end spinning machine MRP-120 MS in spinning the camera made it a channel through which through a flexible hose from the steam generator was fed saturated water vapor (t 95 100oC). The channel is located in the camera body so that the outlet as close as possible to the beard of the processed fibers. Pairs of channel absorbed spontaneously as the result of the resulting pressure drop in the zone of the sample; processed fibrous material was condensed, and separated into the individual at whom the twist in the yarn.

Yarn vyrabatyvaete without doublegene material (industrial method A), and pre-steaming of the material with the help of locking the camera which is placed on the spinning chamber before sealing the funnel (the known method B) and governanee fiber at the time of sampling according to the claimed method Century.

The table shows the physical and mechanical properties of the yarn, including yarn breakage during the spinning process at different treatment options.

According to the data given in the table, the yarn produced by the proposed method has a 4% high breaking load and a reduced proveto than yarn produced by a known method. Also by 17.1% decrease breakage of the yarn obtained by the proposed method.

1. The way bezkoncowego spinning, which consists in sealing the fibrous product, its sample rate, the wetting of the fibers, thickening fibers and twisting them into yarn, characterized in that the wetting of the fibers is carried out in the time discretization of the fibrous product.

2. Device for bezkoncowego spinning, containing accommodated in the housing site sampling o vorotilin-forming body and a conduit for supply moisturizing working environment, characterized in that the inlet channel for feeding moisturizing working environment has the form of a confuser, and the output portion of the channel shape of the cone and is made in the cross section of the ellipsoid, and the channel for supplying moistening the working environment is made in the case of node sampling with the location of the major axis ellipsoid cross section output side of the channel, providing a working environment for the entire width of the barb fibers.

3. The device according to p. 2, characterized in that the inlet channel for feeding moisturizing working environment is made adjustable depending on the form of fibers.

4. The device according to p. 2, characterized in that the ratio of the lengths of the confuser and diffuser channel for supplying moistening the working environment varies 2 3 1.

 

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