CN1079264A

CN1079264A - The device of intermingling yarns

Info

Publication number: CN1079264A
Application number: CN93103506A
Authority: CN
Inventors: H·里特
Original assignee: Heberlein Maschinenfabrik AG
Current assignee: Heberlein AG; Heberlein and Co AG
Priority date: 1992-04-03
Filing date: 1993-04-02
Publication date: 1993-12-08
Anticipated expiration: 2013-04-02
Also published as: EP0564400A1; KR930021842A; JPH0617359A; EP0564400B1; RU2095496C1; CN1039730C; DE59301070D1; JP2751947B2; KR100200408B1

Abstract

A kind of device of multifilament textile of handing over comprises fuselage (1,2), and this fuselage has the path of a continuous yarn path as multifilament textile (M).This yarn path determines to have at least a nozzle (9) side direction to terminate in this yarn path by first wall (7) and second wall (8) in first wall, second wall is positioned at the opposite of nozzle (9) outlet.At least one is along the buckling of yarn path in two walls.Therefore, the distance between two walls increases towards the two ends, yarn path gradually from the minimum of a value in nozzle (9) exit.This moving gaseouse medium speed that causes flowing into and flow to the two ends, yarn path from nozzle (9) outlet reduces gradually.

Description

The device of intermingling yarns

The present invention relates to a kind of device of intermingling yarns.

The objective of the invention is to, this device is designed to such structure, with the device of routine by comparison, it can make multifilament textile produce more uniform entwining, especially front and back link to each other entwine a little between distance more even, and the higher density of entwining is arranged, and this density is entwined to count with every meter and is measured.In addition, can also be as requested in every meter, form many well-regulated entwining by force a little, perhaps in every meter, form and manyly entwine a little a little less than well-regulated.

Reached this purpose according to device of the present invention, by making a bending in symmetrical plane in two walls at least, thereby the distance between two walls measuring in this symmetrical plane increases to the two ends of yarn path gradually from the minimum of a value at the nozzle mouth.

In the interlacing apparatus of routine, the energy of fluid, (in most applications is air, send into and the discharge of warp yarn passage by nozzle), jet expanded yarn there is adverse influence, for example its can a little reopen weak entwining, thereby make and entwine irregularly, also reduce the density entwine simultaneously.Also have by the line tension in the yarn line segment of nozzle mouth, because fluid is to the flowing of two ends, yarn path, and extra increasing, this makes the difficulty more of entwining.

In device of the present invention, if the width of yarn path keeps constant substantially in the mode of optimizing, then increase by the terminal direction of the distance between wall to the yarn path, make the cross section of yarn path towards the corresponding increase of terminal.Interlacing apparatus is usually designed to like this, makes near the pressure ratio device of nozzle mouth atmospheric pressure on every side only higher slightly.The energy ladder that only in this way just can effectively utilize in the device becomes.Therefore in device of the present invention, because the cross section of yarn path increases towards the terminal direction, fall so in fact no longer have pressure, according to the Bernoulli continuity equation, the speed of discharging medium must reduce; This is because the cross section of yarn path increases gradually towards the terminal direction, thereby air-flow can not break away from the wall of yarn path.At energy theorem E=1/2 mv ²In, square being directly proportional of speed with energy.When the speed that flows out from the yarn path when fluid reduces, for example drop to half, so You Hai energy just drops to 1/4th.

As mentioned above, at the yarn path width that measures perpendicular to symmetrical plane, be preferably in the whole length of yarn path and remain unchanged substantially.In order to improve the quality of entwining,, should keep optimum yarn path width especially for the high density of entwining.The air-flow that is blown into is divided into two approximately equalised fibre bundles in the moment that impacts second wall with fibre bundle, and this two bundle fiber only with a certain distance from the place of nozzle, just can merge into the knot of entwining that forms in nozzle mouth both sides again.One can the yarn path of degree of broadening towards each terminal in, the further expansion of two bundle fibers can make the formation of the knot of entwining further from nozzle.This will reduce the density of entwining, and increases the distance between entwining a little.

Describe each embodiment according to apparatus of the present invention below with reference to the accompanying drawings in more detail, accompanying drawing has:

Fig. 1 is the top view of the interlacing apparatus fuselage signal of part excision;

Fig. 2 is the vertical cross section along B-B line among Fig. 1;

Fig. 3 is the vertical cross section along A-A tangent plane among Fig. 2;

Fig. 4 is the vertical cross section that is similar to Fig. 3, shows a modified embodiment of interlacing apparatus;

Fig. 5 is the part side view of display unit among Fig. 1-3;

Fig. 6 is the part side view of device shown in Figure 4;

Fig. 7 and Fig. 8 show the part side view of two modified embodiment, and be similar with Fig. 5.

According to Fig. 1-3 and Fig. 5, the multifilament textile interlacing apparatus comprises bipartite fuselage, this fuselage has nozzle part 1 and baffle part 2, this baffle plate is installed on the nozzle part 1 replaceably by a bolt 3 and two center latches, article one, continuous yarn path is through two-

part fuselage

1,2, and this passage is made of first wall 7 and the second hollow wall 8, first wall 7 is formed by the groove in the nozzle part 1, and its section is spill; Second wall is formed by the groove in the baffle part 2.Two walls 7 all become symmetry to a symmetrical plane with 8, and this symmetrical plane is identical with tangent plane A-A among Fig. 2.Nozzle part 1 has nozzle 9, roughly is positioned at the centre of yarn path 6 length, and the nozzle side direction stops in the yarn path 6.The opening of nozzle 9 is arranged in first wall 7.Second wall 8 is positioned at the opposite of nozzle 9 openings.The axle of nozzle 9 should be arranged in symmetrical plane A-A.

Nozzle part 1 also can be installed the nozzle more than.In this case, each nozzle can perhaps, also can be arranged on two nozzles the both sides of plane A-A mutually symmetrically to this symmetrical plane A-A symmetry.

As shown in Figure 3, first wall 7 is such bending in the cross section of symmetrical plane A-A, makes that the distance between two walls of measuring in

symmetrical plane A-A

7 and 8 is minimum at nozzle 9 opening parts, increases gradually to the two ends of yarn path 6.Therefore, although in the length range of width in whole yarn path of the yarn path 6 that vertical symmetry plane A-A measures, remain constant, but the cross-sectional area of this yarn path increases to the two ends of yarn path from the minimum of a value of nozzle 9 opening parts, for example can increase to 1.2 times to 4 times of minimum of a value, be preferably its 1.5 times to 2 times.

The sweep of first wall 7 is to extend by this way, makes the air-flow that is blown into and flows to yarn path 6 terminals from nozzle 9 openings can not break away from from wall 7.This just means that first wall 7 extends according to a curve in the section that is cut into symmetrical plane A-A, and this curve representative is a continuous function of variable with the distance with nozzle 9 openings.This curve does not have discontinuous point, and the first derivative that this means above-mentioned function also is a continuous function.In addition, the curvature of this curve is not sudden change preferably, and in other words, represented its second dervative of function of curve preferably also is continuous function (not jumping).

In the represented embodiment of Fig. 1-3 and Fig. 5, continuous Wire channel in building 10 side direction terminate in the yarn path 6 between two walls 7 and 8.This Wire channel in building 10 is between the flat surfaces of nozzle part 1 and baffle part 2.

In nozzle part 1, the two ends of yarn path 6 terminate in respectively in groove 11 and 12.The outside of 6 liang of terminals in the yarn path,

lead pin

13 and 14 are inserted into respectively in the nozzle part 1, and for example the sapphire pin is horizontally through groove 11 and 12.These

lead pins

13 and 14 very accurately guide the multifilament textile M(Fig. 3 that passes through yarn path 6 in operation), this multifilament textile is also jet expanded by the air blowing medium that is blown into the yarn path 6 from nozzle 9.Fig. 5 does not show these lead pins.Second wall 8 stretches out by two terminals of yarn path 6.

According to the present invention Fig. 4 with 6 in embodiment and Fig. 1-3 of device shown and embodiment shown in Figure 5 have only following different, in the section that is cut into symmetrical plane, second wall 8.1 also is crooked, therefore the distance between two walls of in symmetrical plane, measuring 7 and 8.1 will be towards the yarn path 6 terminal direction increase, and bigger than the degree that increases among Fig. 1-3 and Fig. 5.Here the sweep of second wall 8.1 extends continuously in the mode identical with above-mentioned first wall 7, thereby air-flow also will can not break away from second wall 8.1.

In Fig. 1-6, the basic forming V-shape of the cross section of first wall 7, and between two V legs, round-corner transition is arranged, and Fig. 7 shows an embodiment, wherein the cross section of first wall 7.1 is approximately semicircle.

So far in the described embodiment, second wall 8 or 8.1 is a hollow, and its cross section is approximately rectangle.In contrast, in the embodiment of Fig. 8, second wall 8.2 that limits yarn path 6 up is made of a groove in the baffle part 2, but simply by the part of baffle part 2 smooth below constitute.In this layout, below baffle part 2 and between the end face of nozzle part 1, there is not Wire channel in building in addition.

Claims

1, the device of intermingling yarns has fuselage (1,2), and this fuselage comprises by first wall (7; 7.1) definite continuous yarn passage (6), at least one side direction terminates in the nozzle (9) in the yarn path (6), and the cross section of this first surface is spill, is positioned at second wall (8 on nozzle (9) outlet opposite; 8.1; 8.2) also determine this passage, each becomes symmetry to a symmetrical plane (A-A) two walls; It is characterized in that, has a bending by this way in this symmetrical plane (A-A) in these two walls at least, make the distance between two walls measuring in this symmetrical plane (A-A), the two ends of (6) increase towards the yarn path gradually from the minimum of a value in this nozzle (9) exit.

2, device as claimed in claim 1 is characterized in that at least one wall (7; 7.1; 8.1) curved portion stretch by this way, can avoid separating of air-flow and wall.

3, device as claimed in claim 2 is characterized in that this curved portion in symmetrical plane (A-A) is a curve of being represented by continuous function, and its single order and second dervative equally also are continuous functions.

4, device as claimed in claim 1 is characterized in that at least the first wall (7; 7.1) as described mode bending.

5, device as claimed in claim 4 is characterized in that also mode bending as described of second wall (8.1).

6, device as claimed in claim 1 is characterized in that remaining constant perpendicular to the width of the yarn path (6) of this symmetrical plane (A-A) measurement basically in the whole length range in yarn path.

7, device as claimed in claim 1 is characterized in that the cross section of yarn path (6) increases to the two ends of yarn path from the minimum of a value in nozzle (9) exit, is increased to 1.2 to 4 times of this minimum of a value.

8, device as claimed in claim 1 is characterized in that the outside, two ends that also is included in yarn path (6) is inserted into the interior wire element (13,14) of fuselage (1,2).

9, device as claimed in claim 1 is characterized in that this second wall (8; 8.1; 8.2) be the two ends of passing through yarn path (6) continuously.

10, device as claimed in claim 1 is characterized in that also being included in the Wire channel in building (10) that forms in the fuselage (1,2), and this groove side direction terminates in the yarn path (6) between two walls (7,8).