CN2591054Y

CN2591054Y - Air deformation spray nozzle

Info

Publication number: CN2591054Y
Application number: CN 02292921
Authority: CN
Inventors: 陈家寿; 任曾
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-19
Filing date: 2002-12-19
Publication date: 2003-12-10
Anticipated expiration: 2012-12-19

Abstract

The utility model discloses a novel air deforming nozzle which is provided with a body, wherein a nozzle core is arranged on the body, and an inner passage is arranged in the nozzle core and communicated with air inlet ports. A pipe joint on the body is connected with a compressed air pipe which is communicated with the air inlet ports in the nozzle core. The near side of an outlet of the nozzle core is provided with a blocking body. The inner passage of the nozzle core comprises a thread feeding passage which is connected with a contracted cone zone, and the contracted cone zone is connected with a throat part which is connected with a round table-shaped diffusing pipe. The inside diameter of the thread feeding passage is smaller than the inside diameter of the throat part, only two air inlet ports which can be provided are communicated with the contracted cone zone. The utility model with reasonable structure can effectively enhance the deformation processing efficiency of air.

Description

The novel air texturing jet

Technical field

The air-texturing jet that the utility model relates to (Air-jet or Nozzle) is a kind of textile chemical fiber engineering goods, is the core component of Air texturing machines.

Background technology:

Air-texturing jet is converted into the asymmetric high turbulence level nozzle air current of high speed with the compressed and supplied air, it is that monofilament and displacement mix that the different endless tows such as synthetic fiber of 2-3 bundle overfeeding length that feed its inlet are drawn also shredding, spray from jet expansion, mostly exporting the nearly an angle of 90 degrees of turnover under the block body cooperation of opposite, becoming has the air deformation yarn of the wire ring structure of entwining (ATY) to derive, and separates with nozzle air current.With after after later process is handled on the Air texturing machines, become the ATY finished product.So just economized and long filament is cut into staple fibre carried out combing, circle bar, twist into rove and draw twisting and become the many manufacturing procedures by long filament system staple fibre yarn such as spun yarn.ATY is the wide like staple fiber yam of a kind of purposes wide in variety, is an important kind in the weaving processing industry.Structure of nozzle and formed nozzle air current feature are directly connected to process velocity, energy consumption and the ATY quality and the occupation rate of market of air-texturing technology.

Since last century the seventies, the various Air texturing machines that developed country makes mostly assembles Du Pont's type and He Ma type air-texturing jet, below the introduction: 1, Du Pont's type nozzle such as Fig. 1 show, this nozzle arrangements of Fig. 1 and the XIV of the Du Pont type nozzle that occurred in 1973 are basic identical, difference is in Yu Yuanzhu or the square column block body is not positioned at the outlet opposite, and is positioned at outlet top.The assembling of chamber body one end contains the convergent-divergent pipe of anemostat and the throat's internal channel and the contraction conical surface among Fig. 1, and other end assembling contains the seal wire pin of hello the silk passage and the air admission hole of setovering, and seal wire pin front end face forms turbulence chamber with the contraction conical surface.This Nozzle Flow Field test illustrates, air-flow from the ejection of biasing air admission hole, through A length ring set diffusion, enter the long filament that turbulence chamber comes out with the seal wire pin and begin effect, nozzle air current through throat and anemostat speedup has tangible high speed and asymmetry again, referring to Melliand Textiberichte 1987, No.9,627-633.Stream turbulence height in the turbulence chamber is referring to Textil praxis international 1984, No7,551-558.Problem be for the air-flow that obtains the air admission hole ejection that the air-flow asymmetry setovers enter in A length ring set, do not touch before the turbulence chamber feeding endless tow just diffusion slow down, be unfavorable for bringing into play and supply with the potential working ability of air-flow; The annular gap distance is controlled the nozzle air current flow and not to property degree and processing effect, it is very little again that this debugs optimum range with shrinking between the conical surface will to regulate seal wire pin front end face in addition.

2, the conspicuous horse S type air air-texturing jet that comes out in recent years as shown in Figure 2, this nozzle is the improvement model of the conspicuous horse T type of early eighties appearance.The nozzle arrangements of these two kinds of models is basic identical, all is made up of body, nozzle core and spherical block body, and difference is in nozzle core internal channel outlet section shape and function different, shows as Fig. 3 and Fig. 4.Fig. 3 is the conspicuous horse T type nozzle core that contains 3 air admission holes, the internal channel major part of this nozzle core is the garden post straight tube of about φ 2mm, and to change the diverging horn mouth near outlet section, 3 apertures equate, the air admission hole that is about φ 0.9mm joins with internal channel with β=48 a ° angle, radially equal distribution.Conspicuous horse S type nozzle core internal channel has the speedup function then at the passage that changes special tapering near outlet section among Fig. 4, and the high speed of its nozzle air current is obvious, can improve process velocity under certain process conditions.Fig. 3 T type nozzle is fed near the straight tube shape the silk feeder connection, changes on Fig. 4 S type nozzle and disperses shape, in the design of CN86205282U air-texturing jet similar improvement is arranged also.Problem shows as and contains the test of 3 air admission hole T type Nozzle Flow Field and illustrate, and its nozzle air current speed asymmetry is slight, referring to J.Text lnst, and 1986, no.1 28-43; The long filament over feed rate(OFR) that conspicuous horse type nozzle can be processed is starkly lower than Du Pont's type nozzle, and conspicuous horse type nozzle air admission hole is identical with the internal diameter of back segment passage with the leading portion that internal channel intersects, and is unfavorable for limits nozzle air-flow flowing to Way in.

3, block body problem: be positioned at the existing multiple structural design of block body on jet expansion opposite, as the plane block body among Fig. 5, the garden post block body among Fig. 6, half garden post block body among Fig. 7 and spherical block body among Fig. 2 or hemisphere face block body etc.Problem is that garden post or the square column block body among Fig. 1 is positioned at outlet top, and the outlet opposite is similar to does not have block body.This is necessary to look back one section experience in Du Pont's type nozzle evolution, in fact the XIV of Du Pont type nozzle is before 1973 come out, the XI of Du Pont type nozzle (1961) has adopted the structural design of biasing air admission hole and ring set diffuser, and difference is in the outlet opposite does not establish the plane block body.Therefore the block body design that is positioned at the jet expansion opposite remains to continue to inquire into.

Summary of the invention:

It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and can effectively improve the novel air texturing jet of air-texturing processing usefulness.

Technology of the present utility model solves:

A kind of novel air texturing jet, body is arranged, adorn nozzle core on the body, internal channel is set in the nozzle core, internal channel communicates with air admission hole, pipe joint on the body is connected with compressed air hose, compressed air hose is communicated with air admission hole in the nozzle core, and nozzle core outlet nearside is provided with block body, its feature: the nozzle core internal channel comprises feeds a silk passage, feeding the silk passage is connected with the contraction tapered region, shrink tapered region and connect throat, throat connects the truncated cone-shaped anemostat, feeds silk passage internal diameter less than throat's internal diameter, air admission hole has two, is communicated with the contraction tapered region.

Nozzle core is formed by connecting by front and rear sections, feeds the silk passage and is arranged in back segment, and contraction tapered region, throat, truncated cone-shaped anemostat, air admission hole are arranged in leading portion.Two air admission holes are equal distribution radially.Two air admission hole aperture differences, little air admission hole aperture are 0.45～0.66 times of big air admission hole aperture.Air admission hole center line and nozzle core axis angle are 40～50 degree.Nozzle core leading portion exit end face is established asymmetric domatic.Asymmetric domatic be downward from nozzle core leading portion anemostat export center, the angle of gradient be 10～30 the degree domatic.Block body is the hemispherical of hollow or cylindrical.

The utility model makes the air-flow of air admission hole ejection slow down without diffusion and directly acts on the feeding endless tow, form high turbulent airflow in prime area with the endless tow contact, again through throat and diffuser, the channels designs speedup has high speed, the configuration of air admission hole, help the nozzle air current that forms and have significantly asymmetry, and make asymmetry be maintained to outlet, avoid not wield debugging operations, the block body that is positioned at the outlet opposite is proposed a kind of new construction design, can make long filament export nearly 90 ° of angles of stably transferring, can reduce vapour lock again to the outlet nozzle air-flow, avoid the existing international conspicuous horse T of Du Pont's type and some weakness on this class nozzle arrangements of S type like this, improve the usefulness of air-texturing processing.

Description of drawings:

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is a kind of Du Pont (Dupont) type air-texturing jet section in the prior art.

Fig. 2 is conspicuous horse (Hema) S type air-texturing jet fragmentary cross-sectional view in the prior art.

Fig. 3 is the nozzle core profile of conspicuous horse T type air-texturing jet in the prior art.

Fig. 4 is the nozzle core profile of conspicuous horse S type air-texturing jet in the prior art.

Fig. 5 is the XIV of Du Pont type air-texturing jet fitting plane block body figure in the prior art.

Fig. 6 is Du Pont's type air-texturing jet assembling garden post block body figure in the prior art.

Fig. 7 assembles half garden post block body figure for EMAD type air-texturing jet in the prior art.

Fig. 8 is the configuration diagram of an embodiment of the utility model.

The specific embodiment:

A kind of novel air texturing jet, body 3 is arranged, adorn nozzle core on the body 3, internal channel is set in the nozzle core, internal channel communicates with air admission hole 5, pipe joint 4 on the body 3 is connected with compressed air hose 13, compressed air hose 13 is communicated with air admission hole 5 in the nozzle core, nozzle core outlet nearside is provided with block body 10, the nozzle core internal channel comprises feeds silk passage 1, feeds silk passage 1 and is connected with contraction tapered region 12, shrinks tapered region 12 and connects throat 7, throat 7 connects truncated cone-shaped anemostat 8, feeds silk passage 1 internal diameter and is significantly less than throat's 7 internal diameters.

Nozzle core is formed by connecting by front and rear sections 9,2, feeds silk passage 1 and is arranged in back segment 2, and contraction tapered region 12, throat 7, truncated cone-shaped anemostat 8, air admission hole 5 are arranged in leading portion 9.Feed silk passage 1 and shrink formation turbulent region 6, tapered region 12 confluces, two must be established and only be established to air admission hole 5, be communicated with contraction tapered region 12, two air admission holes 5 are equal distribution radially, axially have dislocation slightly, and two air admission hole aperture differences, little air admission hole aperture are 0.45～0.66 times of big air admission hole aperture, and air admission hole 5 center lines and nozzle core axis angle are 40～50 degree.Nozzle core leading portion 9 exit end faces establish asymmetric domatic 11.Asymmetric domatic 11 is downward from nozzle core leading portion anemostat export center, and the angle of gradient is the domatic of 10～30 degree.Block body 10 is the hemispherical (or cylindrical) of hollow.ATY derives orientation and two air admission hole center lines and asymmetric domatic center and is positioned at by nozzle-axis and perpendicular to the plane of body tube joint axis.Be positioned at the outlet hemisphere on opposite or garden post block body 10 is the thin-walled hollow structure, controlling gold etc. with filtering powder has certain mechanical strength to have the gas permeability material to make again.

Claims

1, a kind of novel air texturing jet, body is arranged, adorn nozzle core on the body, internal channel is set in the nozzle core, internal channel communicates with air admission hole, pipe joint on the body is connected with compressed air hose, compressed air hose is communicated with air admission hole in the nozzle core, and nozzle core outlet nearside is provided with block body, it is characterized in that: the nozzle core internal channel comprises feeds a silk passage, feeding the silk passage is connected with the contraction tapered region, shrink tapered region and connect throat, throat connects the truncated cone-shaped anemostat, feeds silk passage internal diameter less than throat's internal diameter, air admission hole has two, is communicated with the contraction tapered region.

2, novel air texturing jet according to claim 1, it is characterized in that: nozzle core is formed by connecting by front and rear sections, feeds the silk passage and is arranged in back segment, and contraction tapered region, throat, truncated cone-shaped anemostat, air admission hole are arranged in leading portion.

3, novel air texturing jet according to claim 1 and 2 is characterized in that: two air admission holes are equal distribution radially.

4, novel air texturing jet according to claim 3 is characterized in that: two air admission hole aperture differences, little air admission hole aperture are 0.45～0.66 times of big air admission hole aperture.

5, novel air texturing jet according to claim 4 is characterized in that: air admission hole center line and nozzle core axis angle are 40～50 degree.

6, novel air texturing jet according to claim 2 is characterized in that: nozzle core leading portion exit end face is established asymmetric domatic.

7, novel air texturing jet according to claim 6 is characterized in that: asymmetric domatic be downward from nozzle core leading portion anemostat export center, the angle of gradient be 10～30 the degree domatic.

8, novel air texturing jet according to claim 1 and 2 is characterized in that: block body is the hemispherical of hollow or cylindrical.

9, novel air texturing jet according to claim 6 is characterized in that: air deformation yarn is derived orientation and two air admission hole center lines and asymmetric domatic center and all is positioned at by nozzle-axis and perpendicular to the plane of body tube joint axis.