The method of forming untwisted rovings from flax fiber

 

(57) Abstract:

The invention relates to spinning textile industry and relates to a method of forming untwisted rovings from flax fiber. According to the method of coming out of the exhaust device Micco soaked in water in the drum, by means of its sealing form the rovings and wound rovings formed on bobbins with cross coils. Spinning sliver is carried out by pulling her through the seals. Formed the roving is wound on bobbins with cross coils with the angle of gradient coil 10 to 15oand, without drying, is directed to a chemical treatment. The invention allows to obtain a technical result consists in improving the conditions of extrusion Rove, creating the possibility of forming bobbins from roving, convenient for further processing in spinning without additional coil, eliminating the rotating flyers and reciprocating moving great masses in the formation Rove and simplify the design of the machine. 1 Il.

The invention relates to spinning textile industry and relates to a method of forming untwisted rovings from flax ox is (a), having a constant weight (linear density). To produce yarn this semi-finished product goes through several stages of drawing, with its linear density decreases. The product of the linear density of 0.25 - 2 ktex (rovings) has low strength and fixing exposed weak curl (19-35 cu/m) or suchevane in the processing of wool on the hardware system spinning (TRUEVAL N. And. and other Technology and equipment for the textile industry, Moscow, "Light industry", 1975).

The Rove formation in this way is accompanied by rotation of the flyers, the speed which limits the rate of release of roving equipment; the same occurs with the formation of rovings of fibers due to the reciprocating motion Twister sleeves. The speed limit issue by limiting the frequency of rotation of rest or motion of a significant mass during the formation of wool rovings reduces performance roving equipment.

Not inherent in the above mentioned disadvantage of the known method of forming untwisted rovings, namely, that the roving is formed from a slurry composed of a mixture of fibers with water for several naltie strips through consolidation and removable rollers, several Wenaas, served in the drying zone, where the fibrous strips are dried and gradually ufonauts, then fall into the receiving mechanism, where a roving, which is placed in a container or wrapped in a tangle (CS 182361 And 15.03.1980).

However, this solution does not create a convenient package with rovings for further processing without additional cost rewinding, as well as roving is formed on the trays, it has an uneven structure, so it rovings badly drawn through further processing and drying Rove associated with large energy costs; in addition, this method is complex in terms of technical implementation.

The closest analogue of the claimed method is a method of forming untwisted rovings from flax fibers, according to which, coming out of the exhaust device Micco soaked through her seal form the rovings and wound rovings formed on bobbins with cross Hanks (DE 737706 AND 21.07.1943).

In this way eliminated the above-mentioned disadvantages.

The objective of the invention is to provide a method of forming untwisted rovings from flax fibers is Denmark the possibility of forming bobbins from roving, convenient for further processing in spinning without additional coil, eliminating the rotating flyers and reciprocating moving great masses in the formation Rove and simplify the design of the machine.

This technical result in the formation method untwisted rovings from flax fibers, according to which, coming out of the exhaust device Micco soaked through her seal form the rovings and wound rovings formed on bobbins with cross Hanks, is achieved by the fact that micko soaked in water on the drum, and its extraction is carried out by pulling the sliver through the seals, thus formed the roving is wound on bobbins with cross coils with the angle of gradient coil 10 to 15oand, without drying, is directed to a chemical treatment.

This method is intended solely for the formation of flax rovings, which must be subjected to chemical treatment in a wet condition. Therefore, the need of drying thus formed Rove disappears.

The drawing shows a scheme illustrating the proposed method of forming untwisted rovings.

The method is carried out Risovannogo drum 4, installed in the tub with warm water forming device 3. Each coil formed Rove passes through the seal 5, thanks to sliver out and gets a round cross-section, forming a roving 6. Roving is withdrawn from the formation zone of the outlet pair 7 and is wound on a bobbin 8. For uniform distribution of orbits Rove on the surface of the bobbin is moved in the axial direction with the help of marker 9, thus forming the cross of the rolls with the angle of gradient coils 10-15o. The experiments show that when the angle of the lifting coil is less than 10othe coils are arranged practically parallel to the length close to the length of the fiber. In this case, when the unwinding reel is a mixture of fibers from stacked on top of other layers. This leads to the formation of defects on the yarn during processing untwisted rovings. When increasing the angle of elevation of a coil of the effect decreases and at angles greater than 10 degrees disappears altogether. The upper boundary of the angle of elevation of a coil is equal to 15 degrees, due to a condition for the sustainability revolution. When it is exceeded, the coils are drawn to the middle of the reel, which does not allow to develop a quality reel.

When these conditions are formed is opposed to the traditional woven rovings, all fibers are in the same condition, thereby reducing nerovnosti yarn. Roving is formed of flax fiber and is not exposed to drying, as well as in wet condition subjected to chemical treatment. This eliminates substantial extra energy costs inherent in the known method.

The technical result from the use of this invention lies in the substantial increase in the rate of release Rove about 2.5 times due to the limitations caused by rotation of the flyers. In the present invention the rate of production will be limited only by the rate of release of the exhaust device. Pulling untwisted rovings consisting of parallel fibers, reduces proveto from the yarn.

The method of forming untwisted rovings from flax fibers, according to which, coming out of the exhaust device Micco soaked through her seal form the rovings and wound rovings formed on bobbins with cross coils, characterized in that micko soaked in water on the drum, and its extraction is carried out by pulling the sliver through the seals, thus formed rovnost chemical processing.

 

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SUBSTANCE: apparatus has shaft disposed between columns and adapted for carrying of rotary lever with rotating pressure roll, and spiral spring. Shaft is immovably fixed between flat columns attached by means of bolt-type protrusions to vertically arranged base. Spiral spring is mounted on shaft and spring ends are fixed on rotary lever and on one of columns. Shaft is made stepped and is equipped with basic end portions terminating in threaded parts. Flat columns have rectangular portions continued with bolt-type protrusions. Column arranged at the side of spring end has cylindrical opening for accommodation of rectilinear end of spring. Cylindrical recess provided in rotary lever hub aperture on its internal surface at the side of arrangement of spring is adapted for accommodation of rectilinear end of spring.

EFFECT: improved operating characteristics and operating conditions.

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FIELD: textile, paper.

SUBSTANCE: according to the method, broken thread exiting drafting device is soaked in solution, by means of its compaction, rove is formed, and formed rove is wound onto reels of cross winding, which are chemically treated and then processed into yarn. Broken thread is soaked with electrochemically activated aqueous solution with oxidation-reduction potential from minus 1000 mV to plus 1000 mV, acidity of 2-11 pH at the temperature of 16-40C, and produced rove, not earlier than in 30 minutes after the formation, is processed into yarn.

EFFECT: faster process of rove formation and preparation for spinning, reduced power inputs from 4200 kJ/kg to 3 J/kg and water consumption for chemical treatment of rove, rejection of chemical agents, which makes it possible to reduce costs of recycling coming as a result of chemical treatment of rove by solutions, and elimination of bulk and expensive equipment for chemical treatment of rove.

1 tbl

FIELD: textiles, paper.

SUBSTANCE: invention relates to the textile industry, in particular to flax spinning production, where, at the last manufacturing step, to produce flax yarn the semi-finished in the form of roving is used. The method of formation and preparing flax roving for spinning, according to which, broken thread exiting drafting device is soaked in electrochemically activated water solution with an oxidation-reduction potential from minus 1000 mV to plus 1000 mV and the acidity of 2-12 pH at the temperature of 16-40C. And the wetting is carried out directly to the cavity of the chemical reactor designed for obtaining electrochemically activated water solution.

EFFECT: invention enables to reduce the time, to reduce energy and water consumption for chemical treatment of roving, refuse chemicals which can lead to lowering disposal costs resulting from chemical processing of roving, solutions.

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