Rovings and how you can get

 

(57) Abstract:

The invention can be used in spinning textile industry and provide optimum conditions for pulling rescrutiny rovings for spinning machine when getting thin linen yarn. According to the method of coming out of the exhaust device Micco subjected to false twisting, and then moisten with the passage through the tubular channel with a diameter of 3-5 mm, in which water is fed tangentially to the surface of the channel with an excess pressure of not more than 20 kPa. The moisture content in 1 m product is 1 to 2 mg/Tex that you want to create a product strength due to the surface tension forces. 2 S. p. f-crystals, 2 Il.

The invention relates to spinning textile industry and related untwisted rovings of flax fiber and its preparation.

In the process of yarn production from natural fibers is formed of a fibrous product (tape) with 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 a particular hardware system spinning (TRUEVAL N. And. and other Technology and equipment for textile industry, Moscow, Light industry, 1975).

The Rove formation in this way is accompanied by rotation of the flyers, whose speed limit the speed of the production 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.

Rovings, the strength of which is provided by torsion, does not provide equal conditions for pulling fibers located inside and at the periphery. This increases nerovnosti yarns formed from such rovings.

This disadvantage is eliminated in the rovings, the strength of which is provided by obuvki untwisted fibrous core integrated thin thread (EN 2124080 C1, 27.12.1998).

However, such rovings requires high production costs because it includes a complex yarn with a linear density of 2-10 Tex with a high cost made the th linear density (DE 737706 A, 21.07.1943).

There is also known a method of forming rovings, which consists in wetting coming out of the exhaust device sliver and its false twisting (DE 737706 AND 21.07.1943).

A disadvantage of the known solutions is uncontrolled moisture content Rove and increased consumption of water, which can greatly exceed the amount necessary to ensure strength Rove due to surface tension. Possible runoff from bobbin after winding it Rove.

The task of the group of inventions is the creation of rescrutiny Rove and how it is received, ensuring the achievement of the technical result consists in providing optimal conditions for the extraction of rovings for spinning machine when getting thin linen yarn.

This technical result in the rovings, representing soaked untwisted fibrous product of a linear density, is achieved by the fact that the product is moistened with water, while at the time of formation of the product, the moisture content in one meter of product is 1 to 2 mg per Tex.

Introduced in Micco a certain amount of water needed to create the strength of the formed product due to siliceuses in wetting coming out of the exhaust device sliver and its false twisting, is achieved by the fact that the false twist sliver is carried out before the wetting and wetting with water is carried out in a tubular channel with a diameter of 3-5 mm, in which water is fed tangentially to the surface of the channel with an excess pressure of not more than 20 kPa.

In Fig. 1 presents a diagram illustrating the implementation of the proposed method of Rove formation; Fig.2 - section a-A.

In Fig.1 mark: sliver 1, feeding a pair of 2 exhaust device, the reel 3, the wetting device 4, the exhaust steam 5 exhaust device, the valve 6, a storage tank 7.

An example implementation of the method.

Sliver 1 emerging from the supply 2 pairs of exhaust device is subjected to a false twist by means of mechanical reel 3 with its seal and the formation of the product is rounded. After the clip reel, sliver loses twist, however, maintains round shape. In this form it arrives in the wetting device 4, through the Central channel, which is the product, and through the side water. The diameter of the Central channel for forming rovings with a linear density of from 200 to 2000 Tex should be from 3 to 5 mm With increase in the diameter of the channel above these values, the efficiency of Simachev the anal in the wetting device should enter into the Central channel at a tangent. The water flow is regulated by valve 6, and the water pressure in the forming device is determined by the position of the storage tank 7. The amount of water required to form rovings, is determined by its linear density. It was established experimentally that 1 m product should contain from 1 to 2 mg per Tex. By reducing the moisture content Rove its strength decreases. And when exceeding the specified form excess water dripping from the coils during stocking, which leads to the deterioration of working conditions and to unnecessary water consumption. Excessive water pressure in forming the device must be no more than 20 kPa. At a higher pressure jet is formed, which turns on the reel that interferes with the normal flow of the process of formation of Rove.

Offer rovings, does not contain folded double fiber, as immediately at the outlet of the supply couples all fibers are fixed in the product using the twist given by the reel. The twist is removed from the product after it is wet, when the fibers are already fixed by the surface tension.

Invention help to improve the quality Rove, used for generation of her thin linen yarn.

1. Rovings, predstavljauwego moistened with water, while at the time of formation of the product, the moisture content in 1 m product is 1 to 2 mg per 1 Tex.

2. The method of formation of rovings, which consists in wetting coming out of the exhaust device sliver and its false twisting, wherein the false twist sliver is carried out before the wetting and wetting with water is carried out in a tubular channel with a diameter of 3 to 5 mm, in which water is fed tangentially to the surface of the channel with an excess pressure of not more than 20 kPa.

 

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FIELD: textile industry, in particular, non-circular weaving equipment, for example, weaving units.

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.

6 cl, 7 dwg

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