The method of forming rove and device for its implementation

 

The method and apparatus can be used to form untwisted rovings of flax fiber in spinning textile industry and allow us to provide the optimal conditions for extrusion spinning machine when getting thin linen yarn. According to the method of coming out of the exhaust device Micco in the area between the exhaust device and clip reel rotating mechanical torsional body of the false twist is subjected to pre-hydration with simultaneous implementation of its seal in the wet state false twist created by this reel. Then formed the rovings doublenaut in a confined space partially filled with liquid, at the site of removal of the false twist between the rotating liquid and creates fine liquid medium clip reel and outlet pair of torsion-forming device and is fed to the winding. The device for implementing the method contains made in the form of a rotating mechanical torsion device reel, rotating the clamp which is enclosed in a stationary glass, accumulating wetting liquid flowing through the channel reel of pre-wetting. NEPAD the limiter axial outlet, the diameter of which is associated with a linear density produced Rove ratio d=0,003 T+2 mm, where d is the diameter of the axial openings, a fixed Cup, T - linear density produced by Rove. 2 S. p. f-crystals, 1 Il.

The invention relates to spinning textile industry and relates to a method and device for forming an untwisted rovings from flax fiber.

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 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. M: 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 wool rovings even limit the rotation frequency of rest or motion of a significant mass during the formation of wool rovings reduces the performance of retail 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 of manufacture.

All these disadvantages are eliminated in the method of producing rovings, which is that untwisted fibrous core, sliver, moistened on the drum, a portion of which is immersed in the water bath, repeatedly bending around it. After each dive, sliver is pulled through the seal for a spin and give it a round shape (EN 2148113 C1, 27.04.2000).

A disadvantage of the known solution is excessively high, uncontrolled moisture content Rove and its lack of seal. In addition, the tips of the fibers located on the surface of the rovings, when dragging through the seal from the air traffic management such rovings in the exhaust device of the spinning machine. Insufficient compaction Rove leads to its delamination in Romashkovo the exhaust device of the spinning machine, which also leads to an increase in roughness and increase in the number of yarn defects.

In addition, the presence of areas on-line refueling, where the strength of the sliver is small. In particular, between the final pair and a perforated drum wetting device sliver does not condensed and its strength is determined only by the tenacity contact between the fibers. Low strength sliver on the site, where she is in water in an uncontrolled condition. There are no surface tension, providing durability wet rovings in the air. Therefore, these areas occurs hidden hood or breakage, especially when forming the Rove low linear density. This makes this method of formation is unsuitable for formation of a fine rovings. Another disadvantage of the known method of forming Rove is the increased consumption of water, which greatly exceeds the amount necessary to ensure strength Rove due to surface tension. After winding rovings in the bobbin of the excess water within a few hours off the reel, worsening conditions Reichenau Rove from flax fibers whereby opening of the exhaust device Micco wet seal false twist and served on the winding (DE 737706 A, 21.07.1943).

The closest analogue of the claimed device is a known device for forming an untwisted rovings from flax fibers, containing reel to seal Rove (DE 737706 A, 21.07.1943).

In these known solutions is not resolved to the full extent the deficiencies noted.

A task group of the invention is to provide a method of forming untwisted rovings of flax fiber and device for its implementation, providing technical result consists in the provision of optimal conditions of extrusion spinning machine when getting thin linen yarn.

This technical result in the formation method untwisted rovings from flax fibers, according to which, coming out of the exhaust device Micco wet seal false twist and served on the winding, is achieved by the fact that coming out of the exhaust device Micco in the area between the exhaust device and clip reel rotating mechanical torsional body of the false twist is subjected to pre-hydration with simultaneous sushestvovanie doublenaut in a confined space, partially filled with liquid at the site of removal of the false twist between the rotating liquid and sozdavaemym fine liquid medium clip reel and outlet pair of torsion-forming device.

This technical result in the apparatus for forming an untwisted rovings from flax fibers, containing reel to seal Rove, is achieved by rotating the clamp is made in the form of a rotating mechanical torsion device reel is enclosed in a stationary glass, accumulating wetting liquid flowing through the channel reel of pre-wetting, with fixed glass is located in the area of the rotating clip reel coaxially with it and which has ballinagree axial outlet, the diameter of which is associated with a linear density produced Rove ratio: d=0,003 T+2 mm, where d is the diameter of the axial openings, a fixed Cup, T - linear density produced by Rove.

The drawing shows a General diagram of a device for implementing the method.

The device comprises a reel in the form of mechanical torsional device false twist 3, the clip which rotates in the and doublegene consists of a Cup with a hole at the output, role of balloonies reducing fluctuations in sliver in the area between the rotating clip reel and outlet pair. The diameter d of the hole is determined from the expression: d=0,003 T+2 mm, where T is the linear density of the produced Rove.

The method is as follows.

Sliver 1 coming out of the front pair 2 exhaust device enters the wetting device 4, through the Central channel, which is the product, and served through the side of the wetting liquid. 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 of the above values, the wetting efficiency is reduced. To ensure uniform wetting sliver passing through the Central channel, side channel in the wetting device should enter into the Central channel at a tangent. The fluid flow is regulated by valve 6, and the fluid pressure in the wetting device is determined by the position of the storage tank 7. The amount of liquid required to form rovings, is determined by its linear density. It was established experimentally that 1 m is wound on a reel product must contain moisture from 1 to 2 mg nya liquid dripping from the coils during stocking, which leads to the deterioration of working conditions and to unnecessary consumption of the wetting liquid. Excessive fluid pressure in forming the device must be no more than 20 kPa. When you exit channel of the wetting device sliver is subjected to false twisting by the mechanical reel 3 with its seal and the formation of the product is rounded. Due to the fact that the twist is exposed to moist sliver, the effectiveness of the seal Rove increases significantly with the increase in the strength of the rovings. After the clip reel, sliver loses twist, however, retains the rounded shape and density. Next sliver enters the camera doublegene 8 in the form of a Cup with a hole at the output. The hole diameter is selected depending on the linear density produced by Rove. Camera doublegene is located coaxially with the reel and clamp rotates in this chamber. Due to the rotation of the clamp torsion device in the closed volume, partially filled with liquid flowing from the wetting device through the channel of the reel, is created fine liquid environment, good moisturizing product within it, thereby increasing the efficiency of the teacher, formed roving enters the exhaust clamp 5 pairs of torsion-forming device and next to the wound.

Rovings formed on the proposed method, unlike the prototype does not contain folded double fiber, because immediately after exiting exhaust all pairs of fibers are fixed in the product using the twist given by the reel. The twist imposed on the product in the wet state, in the area between the pair of exhaust and clip reel is removed from it in the area between the clip reel and outlet pair when wet fiber pre-compacted (pressed together) twist and in this state is fixed by the surface tension in the Luggage doublegene.

Thus, the claimed method and device for its implementation enhance Rove, used for generation of her thin linen yarn.

Claims

1. The method of forming untwisted rovings from flax fibers, according to which, coming out of the exhaust device Micco wet seal false twist and served on the winding, characterized in that coming out of the exhaust device Micco in the area between the exhaust device and clip reel in VI is also the implementation of its seal in the wet state by false twist, created this reel, and then formed the rovings doublenaut in a confined space partially filled with liquid, at the site of removal of the false twist between the rotating liquid and creates fine liquid medium clip reel and outlet pair of torsion-forming device.

2. Apparatus for forming an untwisted rovings from flax fibers, containing reel to seal Rove, characterized in that the rotating clamp is made in the form of a rotating mechanical torsion device reel is enclosed in a stationary glass, accumulating wetting liquid flowing through the channel reel of pre-wetting, with fixed glass is located in the area of the rotating clip reel coaxially with it and which has ballinagree axial outlet, the diameter of which is associated with a linear density produced Rove ratio d=0,003 T+2 mm, where d is the diameter of the axial openings, a stationary glass; T - linear density produced by Rove.

 

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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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