CN104630941A

CN104630941A - Device capable of improving quality of ring-spun yarn and application thereof

Info

Publication number: CN104630941A
Application number: CN201310559997.XA
Authority: CN
Inventors: 邱华
Original assignee: Jiangnan University
Current assignee: Jiangnan University
Priority date: 2013-11-11
Filing date: 2013-11-11
Publication date: 2015-05-20

Abstract

The invention discloses a device for improving the quality of ring-spun yarn by means of a swirl nozzle and belongs to the technical field of textile engineering. The device is called swirl nozzle for short. The swirl nozzle is mainly composed of a yarn path and an air path and is installed on a ring spinning frame and located between a front roller and a yarn guide wire. Airflow enters the yarn path through the air path after being injected in, so that rotational flow is formed to conduct untwisting and re-twisting on hairy yarn, and then hairiness is effectively reduced and the yarn evenness and strength of spun yarn are improved. The device is simple in structure, low in transformation cost, convenient to install and high in development and application value.

Description

A kind of device and application that can improve ring spindle yarn quality

Technical field

Utilize eddy current to improve a device for ring spindle yarn quality, be called vortex spray pipe, the invention belongs to field of textile machinery, it relates to a kind of device of novel improvement yarn quality.

Background technology

RING SPINNING is the spinning method that in current Spinning process, proportion is maximum, and possess skills maturation, stable yarn quality and the good advantage of varietal adaptation.But, on ring spinning frame, spinning triangular zone is there is in yarn in twisting forming process, in the yarn of spinning triangular zone, fiber can not be completely controlled, part free-fiber head end is the formation filoplume that is exposed because not being involved in yarn body, on the other hand under the effect of yarn tension, the centripetal force that fiber is subject to varies in size and in the radial direction of sliver, transfer repeatedly occurs, the fiber head end of squeezed yarn body in transfer process, owing to being no longer subject to the effect of centripetal force and staying yam surface and define filoplume.

Weaving, starching, dyeing etc. many textile manufacturing operations in, filoplume is an inevitable problem, research shows, the length quantity of Yarn filoplume and distribution thereof are to later process, production efficiency, end product quality important, too much filoplume brings many problems, as tangled between yarn in weaving process, what yarn can not lead to smoothly crosses warp stop sheet, harness eye and dent, causes the phenomenons such as opening is unclear, broken end increase; Affect the starching of yarn, cause the cloth cover dyeing depth uneven, form aberration; Easily make the long-living pilling of fabric face present, affect the feel of fabric, style, wearability.Filoplume phenomenon has become the current general focal issue by people's concern and has been paid attention to as the important indicator evaluating yarn, reduce filoplume and also just become a current important research contents, therefore, ring throstle is studied the novel plumage technology that subtracts to be of great immediate significance.

Traditional subtract plumage technology as appropriate amount improve the twist factor that spins, the appropriateness increase of twist factor can reduce yam surface filoplume; Select suitable rings and steel traveler and change in time, steel traveler is overweight or kick the beam Yarn filoplume all can be made to increase; Suitable control spinning ingot speed.Spinning ingot speed can make the centrifugal force suffered by yarn increase time excessive, and the fiber causing oneself to be twisted into yarn body or the fiber of twisting are thrown out of yarn surface and form filoplume; Strengthen the control of workshop moisture temperature.The temperature of spinning workshop is below 30 DEG C, and relative humidity is between 46% ~ 86%; Adopt rational Sizing Technology, the staple fibre of removing single thread protrusion of surface; Secondary comb and parallel cotton fibers prior to spinning improves yarn qualities, can remove flyings, short flannel etc.

Novel technology has compact spinning, Seluofle spins, SEILE textile etc., their at minimizing filoplume, to improve effect in yarn qualities fine, but its equipment investment is large, maintenance cost is high; Utilize double-stage nozzle also can reach the effect reducing filoplume, but double-stage nozzle complex structure, design cost is high.The method that ring throstle installs additional swirl nozzle is the special construction utilizing cyclone, and produce High Rotation Speed air-flow, effectively can reduce Yarn filoplume, this nozzle subtracts plumage Be very effective, and scrap build expense is low, has good development and application values.

Summary of the invention

For the problems referred to above, the invention provides a kind of method and apparatus being improved yarn by eddy current.

Technical scheme of the present invention: a kind of eddy flow that utilizes, to improve the nozzle of yarn quality, is called swirl nozzle.It is characterized in that: swirl nozzle be primarily of yarn road 1. 6., 3. 2. air flue form with air chamber, compressed air is passed into by air inlet, and is stored in air chamber.The outside of swirl nozzle is that the air chamber including cavity is formed, and has an air inlet, is connected to external compression air, as Fig. 1.Swirl nozzle inside is made up of a circular yarn road and four air flues, 4 air flues and yarn road tangent successively, and to be uniformly distributed; The point of contact in air flue and yarn road is positioned at same plane; Four airway diameters are identical, are 0.8-1.4mm; According to the length of institute's processing fiber, the length in yarn road is 18-62mm, L ₁: L ₂=0.5; Four air flues and the yarn road θ that has a certain degree is 25 °-55 °.

Compared with prior art, the advantage had is beneficial effect of the present invention: owing to there being four air admission holes, and provides compressed air simultaneously by air chamber, air pressure is steady, create cyclonic action that is effective, that continue, the stable yarn quality of spun yarn, performance is significantly improved.

Accompanying drawing explanation

Fig. 1. swirl nozzle schematic diagram: yarn is from the inside 1. entering into swirl nozzle, 4. 3. dry compressed air enter air chamber from air inlet, by four air flues 2. compressed air stream in air chamber, forms stable swirling eddy in yarn path uniformly, and exports 6. along axis to yarn road.

Fig. 2. the longitudinal direction figure of swirl nozzle internal structure, illustrates that four air flues are tangent with yarn road in the vertical.

Fig. 3. the transverse view of swirl nozzle internal structure, the angle in air flue and yarn road is θ.

Detailed description of the invention:

Raw material: the textile cotton yarn being quantitatively 5.22g/10m.Spining Robot: CZJF-5 intelligent multifunction spun yarn proof press.Spinning process condition: the pressure (gauge pressure) of swirl nozzle import department is 0.2MPa, cyclone to the distance 9cm of front jaw, swirl nozzle.The Z that twist factor is 360, fineness is 30tex twists with the fingers textile spun yarn, and each sample spins 1200m, and ingot speed is 12000r/min.

The test of yarn property is carried out according to standard GB/T/T7243-1987 " Yarn filoplume assay method projection counting method ", standard GB/T/T3916-1997 " mensuration of textiles package yarn single yarn ultimate strength and elongation at break ", GB/T3292-1997 " yarn evenness textile yarn evenness fault test method capacitance method ".The common ring spinning line of table 1 and installed the Performance comparision of yarn after swirl nozzle additional.

The common ring spinning line of table 1 and installed the Performance comparision of yarn after swirl nozzle additional.

From table, data draw: under 0.2MPa air pressure, compare common spinning, the S3 value (summation of 3mm and more than 3mm hairiness number) of swirl nozzle reduces 75.0%, fracture strength and bar evenness change very little, thickness joint and cotton knot all decrease a bit, and illustrate that swirl nozzle is compared with common RING SPINNING, filoplume significantly reduces, spun yarn fracture strength and bar evenness change improve, and yarn quality significantly improves.

Claims

1. utilize eddy current to reduce a jet pipe for Yarn filoplume, be called vortex spray pipe, it is characterized in that: vortex spray pipe forms primarily of air flue, air chamber and yarn road.

2. the application of nozzle described in claim 1, is characterized in that: four nozzle Jun Yusha roads are tangent, and four air flues are by air chamber air feed simultaneously.

3. air flue according to claim 2 has 4, and their diameter is identical, is 0.8-1.4mm, and 4 air flues and the yarn road θ that has a certain degree is 25 °-55 °.

4. yarn road according to claim 2 length is 18-62mm, L ₁: L ₂=0.5.