JP3314159B2 - Yarn entanglement processing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn entanglement processing apparatus for imparting entanglement to a multifilament yarn by the action of a compressed fluid.

[0002]

2. Description of the Related Art In the manufacturing process of synthetic fibers, etc., a compressed fluid is jetted onto a yarn composed of multifilaments to perform an entanglement treatment, and an entangled portion and an opening portion opened in a spindle shape alternately and continuously. Such entangled yarns have been formed, and various yarn entanglement processing devices for forming the entangled yarns have been proposed.

For example, a yarn entanglement processing device 31 shown in FIGS. 11 (a) and 11 (b) is composed of a block body 32 having a circular through-hole 33 which forms a yarn processing area S and has a circular cross section. 33 has a slit 34 for guiding the yarn W,
Injection hole 3 for injecting compressed fluid into through hole 33
5 are each opened. And the slit 3
4, the compressed fluid is ejected from the injection holes 35 to the yarn W composed of multifilaments guided to the yarn processing area S in the through-hole 33, so that the yarn W running in the yarn processing area S is entangled. Was to be provided.

However, in the yarn entanglement processing device 31 shown in FIGS. 11A and 11B, when the compressed fluid ejected from the injection hole 35 collides with the inner wall surface of the through hole 33, the through hole 3
3 and the inner wall surface of the through hole 33 is formed of a curved surface, so that the flow diverted to the left and right tends to be non-uniform, and turbulence is generated to rotate the yarn W. As a result, the yarn W
However, there is a problem that sufficient confounding cannot be provided, and that confounding cannot be provided efficiently even when the consumption of the compressed fluid is large. Moreover, the yarn W may jump out of the yarn processing area S through the slit 34, and in this case,
There is also a problem that confounding processing cannot be performed.

On the other hand, as an alternative to the yarn entanglement processing apparatus shown in FIGS. 11A and 11B, a yarn entanglement processing apparatus 21 shown in FIGS. 10A and 10B has been proposed.

The yarn entanglement processing device 21 includes a mounting bracket 28 having yarn guides 29a and 29b at both ends, respectively.
Nozzle plate 22 having a horizontally fixed plane 24
And a cover plate 25 having a plane 26 disposed in parallel with the plane 24 of the nozzle plate 22 with a spacer 27 interposed therebetween. The plane 24 of the nozzle plate 22 and the plane 26 of the cover plate 25 Is a yarn processing area S, an opening 30 for guiding the yarn W to the yarn processing area S is provided at a position opposite to the spacer 27, and the plane 24 of the nozzle plate 22 has a yarn processing area. There is a type provided with two injection holes 23a and 23b which are opened so as to jet the compressed fluid to the yarn W running on the S.

[0007] In order to impart entanglement to the multifilament yarn W by the yarn entanglement processing device 21, the yarn W is guided from the opening 30 to the gap between the cover plate 25 and the nozzle plate 22, and the yarn W at both ends is provided. Thread guide 29
a, 29b regulates the yarn W to travel in the yarn processing area S, and imparts confounding to the traveling yarn W by ejecting a compressed fluid from the injection holes 23 to the traveling yarn W. It is possible to reduce the consumption of the compressed fluid as compared with the yarn entanglement processing device 31 shown in FIGS. 11A and 11B, and to improve the number of entanglements and the entanglement rate with the yarn W. There were advantages (US Pat. No. 3,1
15, 691, JP-A-61-194243, JP-A-59-66532, and JP-A-6-136632.
Reference).

[0008]

However, FIG.
In the yarn entanglement processing device 21 shown in (a) and (b), while the opening 30 between the cover plate 25 and the nozzle plate 22 is open in the horizontal direction, the yarn guides 29a, 29
Since the thread W is applied to b from above,
When trying to thread the yarn W traveling at a high speed through the opening 30, the yarn W must be largely bent, and it takes a long time to perform the yarn hooking operation.
Has protruded from the opening 30, there is a problem that the yarn W cannot be automatically returned to the yarn processing area S.

[0009] The processing speed of such a yarn W is 300 to 1000 m / min in the drawing step and 300 in the spinning step.
The processing speed is as fast as 0 to 5000 m / min, and the processing speed has been further increased in recent years. Then, the yarn W traveling in the yarn processing area S moves at such a high speed and vibrates in the vertical direction while being regulated by the yarn guides 29a and 29b provided at the entrance and exit, respectively. Since the plane S of the cover plate 25 and the plane 24 of the nozzle plate 22 constituting the region S frequently slide, respectively, the yarn W has fluffs, loops, and the like, and has a problem that damage is large.

[0010]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a yarn entanglement which consumes a small amount of compressed fluid, can stably provide an excellent entanglement treatment, has little damage to the yarn, and can be easily threaded. An object of the present invention is to provide a processing device.

[0011]

SUMMARY OF THE INVENTION In view of the above problems, the present invention comprises a cover plate having a flat surface, and a nozzle plate having a flat surface in which fluid ejection holes are opened.
The plane of the cover plate and the plane of the nozzle plate are spaced apart from each other and arranged in parallel to face each other to form a yarn processing area, and the yarn guides provided on the inlet side and the outlet side respectively form a multifilament yarn. In a yarn entanglement processing device that regulates running in the yarn processing area and imparts entanglement to the yarn by ejecting compressed fluid from the injection hole, the plane of the nozzle plate is aligned with the axis of a mounting bracket. On the other hand, the yarn entanglement treatment device is configured to be inclined in the range of 10 ° to 60 °.

Further, according to the present invention, the distance between the plane of the cover plate and the plane of the nozzle plate is 0.5 to 4.
0 mm, and the horizontal distance from a line drawn from the yarn guide on the inlet side to the yarn guide on the outlet side to the opening between the cover plate and the nozzle plate is 1.0 to 5.0 mm.

Further, in the present invention, a concave portion is provided on a plane of the cover plate and / or a plane of the nozzle plate which constitutes the yarn processing area.

[0014]

Embodiments of the present invention will be described below.

FIG. 1 is a view showing a yarn entanglement processing apparatus according to the present invention, in which (a) is a perspective view, and (b) is a sectional view taken along line XX of (a).

The yarn entanglement processing apparatus 1 comprises a nozzle plate 2 having a flat surface 4 and a cover plate 5 having a flat surface 6. The nozzle plate 2 is fixed to a mounting bracket 10 in an inclined state. The plane 6 of the cover plate 5 and the plane 4 of the nozzle plate 2 are arranged in parallel and opposed to each other with a spacer 8 interposed therebetween, so that the plane 4 of the nozzle plate 2 and the cover plate 5
A space formed by the flat surface 6 is used as a yarn processing area S, and an opening 7 for guiding the yarn W to the yarn processing area S is opened at a position opposite to the spacer 8. The nozzle plate 2 has two injection holes 3 that are inclined at a predetermined angle with respect to each other and open on a plane 4 in order to jet compressed fluid from a direction orthogonal to the yarn W traveling in the yarn processing area S. It has. The width N of the cover plate 5
Is shorter than the nozzle plate 2 in a range that covers the injection hole 3 so that the thread can be hooked on the opening 7 easily.

A guide plate 13 which is longer than the nozzle plate 2 is attached to the mounting member 10. The guide plate 13 has an inlet-side thread guide 9a and an outlet-side thread guide 9b at both ends. The running and tension of the yarn W are controlled by these yarn guides 9a and 9b. The position of the guide plate 13 can be adjusted so that the guide surfaces of the yarn guides 9a and 9b are at the same height as the yarn processing area S.

In order to entangle the yarn W with the yarn entanglement processing apparatus 1, first, the yarn is hung on the yarn guide 9a on the inlet side and the yarn guide 9b on the outlet side, and the yarn is wound in the opening 7. W is guided to the yarn processing area S. In this state, the yarn W is run, and the compressed fluid is ejected from the two ejection holes 3 provided in the nozzle plate 2 so that the yarn W is entangled.

According to the present invention, the yarn processing area S
Since the flat surface 4 of the nozzle plate 2 is inclined with respect to the mounting bracket 10 having an axis in the vertical direction, the yarn hooking is easy, and the yarn W Even if the yarn W is deviated from the processing region S and jumps out of the opening 7, the yarn plate W is regulated under a certain tension by the yarn guide 9a on the inlet side and the yarn guide 9b on the outlet side. 2 inclined planes 4
Then, the yarn is returned to the yarn processing area S, and the yarn detachment can be effectively prevented.

Further, since the flat surface 4 of the nozzle plate 2 constituting the yarn processing area S is inclined with respect to the mounting bracket 10, the entanglement with the yarn W is achieved despite the low consumption of the compressed fluid. The number and the entanglement rate can be improved, the convergence of the entangled yarn can be improved, and the damage such as fluff and loops caused by the collision with the nozzle plate 2 or the cover plate 5 can be significantly reduced. The yarn quality can be improved.

That is, the yarn W and the nozzle plate 22 when the conventional yarn entanglement processing device 21 shown in FIG.
As shown in the schematic diagram for explaining the sliding state with the above, in the conventional yarn entanglement processing device 21, since the plane 24 of the nozzle plate 22 constituting the yarn processing region S is installed horizontally, The yarn W vibrates vertically with respect to the plane 24 of the nozzle plate 22 while being regulated by the yarn guide 29a on the inlet side and the yarn guide 29b on the outlet side. At this time, assuming that the magnitude of the force acting on the plane 24 of the nozzle plate 22 due to the collision with the yarn W is F,
The yarn W is subjected to a reaction of the size of F, and the force of this reaction causes damage to the yarn W such as fluff and loops.

On the other hand, FIG. 2 is a schematic view for explaining a sliding state between the yarn W and the nozzle plate 2 when the yarn entanglement processing apparatus 1 of the present invention is used. Since the yarn entanglement processing device 1 is arranged so that the plane 4 of the nozzle plate 2 is inclined, if the yarn W collides with the plane 4 of the nozzle plate 2 with the force of F, the yarn W Component force f in the direction perpendicular to plane 4 of plate 2 causing damage
The size of 1 is Fsinθ, and the damage at the time of collision can be reduced as compared with the conventional yarn entanglement processing device 21, so that the damage of the yarn W can be suppressed.
Moreover, in the direction parallel to the plane 4 of the nozzle plate 2,
A component force f2 having a magnitude of Fcos θ acts. Since the component force f2 acts as a force to effectively increase the vibration motion of the yarn W, the number of entanglements and the The confounding rate can be improved.

By the way, in order to obtain these effects,
The plane 4 of the nozzle plate 2 constituting the yarn processing area S is
It is important to install the mounting bracket 10 at an inclination angle θ of 10 ° to 60 ° with respect to the axis of the mounting bracket 10.

That is, when the inclination angle θ is larger than 60 °, the effect of suppressing the damage to the yarn W is reduced, and the component force f2 in the direction parallel to the plane 4 is reduced. If the inclination angle θ is smaller than 10 °, the component force f2 in the direction parallel to the plane 4 becomes too large, and the vibration of the yarn W is increased. This is because the movement becomes unstable and adversely affects the confounding processing.

In the range where the inclination angle θ is smaller than 20 °, there is a possibility that the yarn may come off. Therefore, it is preferable to set the inclination angle θ to 20 ° to 60 °.

The width R of the opening 7 between the nozzle plate 2 and the cover plate 5 depends on the thickness of the thread W, but if it is not particularly thick, it may be 0.05 mm or more. 0.15 mm or more, and more preferably 0.35 mm or more, more preferably 0.5 mm or more, from the viewpoint of effectively preventing yarn clogging of the yarn W in order to perform yarn hooking smoothly without any problem. . However,
When the width R of the opening 7 between the nozzle plate 2 and the cover plate 5 is larger than 4.0 mm, the consumption of the compressed fluid ejected from the ejection holes 3 becomes too large. Therefore, 4.
By setting the upper limit to 0 mm and making the opening within this range, the thread hooking operation can be easily performed. Furthermore, if the horizontal distance L from the line drawn from the yarn guide 9a on the inlet side to the yarn guide 9b on the outlet side to the opening 7 between the cover plate 5 and the nozzle plate 2 is shorter than 1.0 mm, the ejection holes 3
The compressed fluid ejected from the nozzle escapes from the opening 7 and cannot be entangled. Conversely, the horizontal distance L is 5.0 m.
If the length is longer than m, threading becomes difficult.

Therefore, the horizontal distance L from the line drawn between the two thread guides 9a and 9b to the opening 7 is 1.0 to 5.0.
mm, preferably in the range of 1.0 to 4.0 mm.

Incidentally, at least the planes 4 and 4 of the nozzle plate 2 and the cover plate 5 constituting the yarn processing area S
6 is preferably made of ceramics mainly composed of alumina, zirconia, silicon nitride, silicon carbide, and aluminum nitride, which are excellent in wear resistance because they slide with the yarn W at a high speed. 5 may be formed entirely of the above ceramics.

The surface roughness of the flat surface 4 of the nozzle plate 2 and the flat surface 6 of the cover plate 5 depends on the type of the yarn 4. For example, the surface roughness of the yarn W having a smooth surface such as a flat yarn is determined. On the other hand, it is sufficient to use a satin finish having irregularities of about 0.8 μm in center line average roughness (Ra). 0.2μ in line average roughness (Ra)
It is preferable that the surface has a smooth surface of m or less.

Further, in the yarn entanglement processing apparatus 1 shown in FIG. 1, an example is shown in which the distance between the nozzle plate 2 and the cover plate 5 constituting the yarn processing area S is managed via the spacer 8. The step may be controlled by providing a step of 0.05 to 4.0 mm at the end of the plane 4 of the nozzle plate 2 or the plane 6 of the cover plate 5. FIG.
In (b), the gap between the nozzle plate 2 and the cover plate 5 (the yarn processing area S) and the gap between the openings 7 are the same, but from the viewpoint of preventing the yarn from coming off, the openings 7 are separated from the nozzle plate 2. It may be narrower than the gap between the cover plate 5 and the yarn (the yarn processing area S).

Further, in the nozzle plate 2 and the cover plate 5, the total length of the yarn W in the running direction is about 1
It is sufficient if it is about 0 to 40 mm.
The distance from a, 9b to the end of the nozzle plate 2 is 10
What is necessary is just to provide in the range of 0 mm or less.

Next, another embodiment of the present invention will be described with reference to FIG.
Will be described.

The yarn entanglement processing apparatus 1 has a concave groove 15 having a curved cross section in the plane in which the yarn W runs in the plane 6 of the cover plate 5 and the plane 4 of the nozzle plate 2.
The structure is basically the same as that of FIG.

As described above, by forming the concave groove 15 in the plane constituting the yarn processing area S, the impact of the yarn W can be reduced and the damage of the yarn W can be reduced. In addition,
The width M of the concave groove 15 is 2 which is the distance connecting the outside of the two injection holes 3.
Preferably, the depth D of the concave groove 15 is not more than twice as large as the diameter of the injection hole 3.

The sectional shape of the concave groove 15 is not limited to a curved shape, but may be a V-shaped or U-shaped. Further, FIG. 4 shows an example in which the concave grooves 15 are formed on the plane 4 of the nozzle plate 2 and the plane 6 of the cover plate 5, respectively, but they may be formed on only one of them.

[0036]

(Example 1) Here, a yarn entanglement processing apparatus 1 shown in FIG. 1 in which the inclination angle θ of the nozzle plate 2 was changed was prepared, and entanglement processing of a polyester multifilament was performed to obtain an entanglement characteristic ( Experiments were conducted to examine the number of entanglements, the entanglement rate), the damage to the yarn W, the number of yarn detachments, and the degree of yarn hooking.

The confounding processing condition in this experiment was 150 d
A yarn W made of a / 48f polyester multifilament is caused to travel in the yarn processing area S at a processing speed of 600 m / min, and compressed air of ² kg / cm ² is ejected from the injection holes 3 of the nozzle plate 2 at a rate of 45 l / min. I did it.

Each of the yarn entanglement treatment devices 1 had the following dimensions.

The diameter of the injection hole 3 is 1.1 mm, the number of the injection holes 3 is 2, the intersection angle of the injection holes 3 is 90 °, the distance between the centers of the injection holes 3 is 4.25 mm, the nozzle plate 2 and the cover plate 5 are provided. Distance R: 1.2 mm, length of the yarn processing area S (length of the nozzle plate 2 and the cover plate 5): 20 mm In evaluating the confounding characteristics, the number of confounds was measured after the confounding process. , A reference length is set in a state where a load of 0.1 g (gram) per 1 d (denier) is applied to the yarn W and the yarn W is stretched, and the number of entanglements within the reference length is not properly entangled. The number was measured several times. The number of confounds was determined as the average of the values obtained by converting the number of confounds per m.

The confounding rate is the percentage of the confounding number to the sum of the confounding number and the unsatisfactory confounding number, and the confounding rate is 90% or more. Those were evaluated as good.

The damage of the yarn W was evaluated by measuring the tension of the yarn W. That is, the yarn W
Using a tension meter, the tension at two points, a state where the tension is input to the yarn guide 9a on the entrance side and a state where the tension is output from the yarn guide 9b on the exit side, is measured.
(G) and Tout (g). And T compared to Tin
It was considered that when the out became high, the frictional resistance due to sliding on the yarn W was considered to be high, and it was evaluated that the yarn W was damaged.

Further, the number of times of yarn detachment is measured by visually observing the number of times that the yarn W jumps out to the opening 7 during the entanglement process,
It was determined as the average of the values converted per day. Then, if a yarn break occurs, no entanglement treatment is applied to the yarn W. Therefore, when the number of yarn breaks is 0.2 (times / day) or less, it was evaluated as good. FIG. 5 shows the relationship between the inclination angle θ of the nozzle plate 2 and the number of entanglements, FIG. 6 shows the relationship between the inclination angle θ of the nozzle plate 2 and the entanglement ratio, and FIG. 6 shows the relationship between the inclination angle θ of the nozzle plate 2 and the number of thread detachments. This is as shown in FIG.

As a result, as can be seen from FIGS. 5 and 6,
If the inclination angle θ of the nozzle plate 2 is set in the range of 10 ° to 60 °, the number of entanglements and the entanglement rate can be increased as compared with a conventional yarn entanglement processing apparatus (inclination angle θ = 90 °),
The nozzle plate 2 having an inclination angle θ of 20 ° to 60 ° was particularly excellent.

When the inclination angle θ of the nozzle plate 2 is 6
If it is 0 ° or less, it can be seen that the tension Tout of the yarn W does not change so much and damage to the yarn W can be suppressed.

Further, as can be seen from FIG. 7, when the inclination angle θ of the nozzle plate 2 is set to 10 ° or more, the number of times of yarn detachment can be reduced as compared with the conventional yarn entanglement processing apparatus (inclination angle θ = 90 °). I understand.

Comprehensively considering these results, the yarn W is damaged by arranging the plane 4 of the nozzle plate 2 at an angle of 10 ° to 60 ° with respect to the axis of the mounting bracket 10. It can be seen that a good yarn entanglement processing device 1 can be obtained, such that good entanglement characteristics can be obtained without giving the yarn, and the number of times of yarn detachment can be reduced.

(Embodiment 2) Next, the inclination angle θ of the nozzle plate 2 is set to 30 ° and 60 °, and the cover plate 5 and the cover plate 5 are connected with a line drawn from the yarn guide 9a on the inlet side to the yarn guide 9b on the outlet side. The yarn entanglement processing apparatus 1 shown in FIG. 1 in which the horizontal distance L from the nozzle plate 2 to the opening 7 is different, is prepared.
The number of times of yarn detachment and the success rate of yarn threading when the confounding treatment was performed under the same conditions as in Example 1 were measured.

The success rate of the yarn hooking can be measured only by hooking the yarn W on the yarn guides 9a and 9b.
Successful threading is defined as a case where the worker automatically moves to the yarn processing area S along the plane 6 of the cover plate 5 by means of the yarn hooking means that does not actively push the yarn W into the yarn processing area S. This operation was repeated, and the ratio of the number of successful measurements to the number of measurement times was determined as a percentage. Then, a threading success rate of 90% or more was evaluated as good.

The respective results are as shown in FIGS.

As a result, the inclination angle θ of the nozzle plate 2
It can be seen that if the angle is within the range of 10 ° to 60 °, the yarn detachment can be suppressed. However, if the horizontal distance L from the line drawn from the yarn guide 9a on the inlet side to the yarn guide 9b on the outlet side to the opening 7 between the cover plate 5 and the nozzle plate 2 exceeds 5 mm, the threading success rate is 90%. The opening 7 between the cover plate 5 and the nozzle plate 2 is drawn from a line drawn from the yarn guide 9a on the inlet side to the yarn guide 9b on the outlet side.
It can be seen that the horizontal distance L up to 5 mm should be less than 5 mm.

[0051]

As described above, according to the present invention, there are provided a cover plate having a flat surface, and a nozzle plate having a flat surface in which a fluid ejection hole is opened, wherein the flat surface of the cover plate and the flat surface of the nozzle plate are provided. Are arranged in parallel with each other at an interval to form a yarn processing area, and yarn guides provided on the inlet side and the outlet side respectively regulate the yarn made of multifilaments to travel in the yarn processing area. In addition, in the yarn entanglement treatment device that imparts entanglement to the yarn by ejecting a compressed fluid from the injection hole, the plane of the nozzle plate is set in a range of 10 ° to 60 ° with respect to the axis of the mounting bracket. Since the yarn entanglement processing device is configured with the slanted arrangement, it is easy to hook the yarn, and the yarn jumps out of the yarn opening from the yarn processing area during the entanglement processing. Even so, since the nozzle plate can be returned to the yarn processing area along the inclined plane of the nozzle plate, the yarn can be effectively prevented from coming off.

Moreover, despite the low consumption of the compressed fluid, the number of entanglements and the entanglement ratio can be improved, the convergence of the entangled yarn can be improved, and the collision with the nozzle plate and the cover plate can be improved. This can significantly reduce the damage such as fluffs and loops that occur, thereby improving the yarn quality.

Further, according to the present invention, by providing a concave portion on the plane of the cover plate and / or the plane of the nozzle plate which constitutes the yarn processing area, the impact of the yarn is reduced, and the damage of the yarn is further reduced. can do.

[Brief description of the drawings]

FIG. 1 is a diagram showing a yarn entanglement processing device according to the present invention,
(A) is a perspective view, (b) is XX sectional drawing of (a).

FIG. 2 is a schematic diagram for explaining a sliding state between a yarn and a nozzle plate when the yarn entanglement processing apparatus of the present invention is used.

FIG. 3 is a schematic diagram for explaining a sliding state between a yarn and a nozzle plate when a conventional yarn entanglement processing device is used.

FIG. 4 is a sectional view showing another yarn entanglement processing apparatus of the present invention.

FIG. 5 is a graph showing the relationship between the angle of inclination of the nozzle plate and the number of confounds.

FIG. 6 is a graph showing the relationship between the inclination angle of the nozzle plate and the confounding ratio.

FIG. 7 is a graph showing the relationship between the angle of inclination of the nozzle plate and the number of thread detachments.

FIG. 8 is a graph showing the relationship between the horizontal distance from a line drawn from the yarn guide on the inlet side to the yarn guide on the outlet side to the opening between the cover plate and the nozzle plate and the number of times of yarn detachment.

FIG. 9 is a graph showing the relationship between the horizontal distance from a line drawn from the yarn guide on the inlet side to the yarn guide on the outlet side to the opening between the cover plate and the nozzle plate and the yarn hooking success rate.

FIG. 10 is a view showing a conventional yarn entanglement processing apparatus, and (a).
FIG. 2 is a perspective view, and FIG. 2B is a sectional view taken along line YY in FIG.

FIG. 11 is a view showing another conventional yarn entanglement processing apparatus;
(A) is a perspective view, (b) is a ZZ line sectional view of (a).

[Explanation of symbols]

1 ... yarn entanglement processing device 2 ... nozzle plate
3 ... Injection hole 4 ... Plane of nozzle plate 5 ... Cover plate 6 ... Plane of cover plate 7 ... Opening 8.
..Spacers 9a, 9b: Thread guide 10: Mounting bracket 13: Guide plate S: Thread processing area W
..Thread

Claims (3)

(57) [Claims] 1. A cover plate having a flat surface and a nozzle plate having a flat surface in which fluid ejection holes are opened, wherein the flat surface of the cover plate and the flat surface of the nozzle plate are opposed to each other in parallel with a space therebetween. The yarn processing area is formed, and the yarn guides provided on the inlet side and the outlet side respectively regulate the yarn made of multifilaments to travel in the yarn processing area, and eject the compressed fluid from the injection holes. In the yarn entanglement processing device for imparting entanglement to the yarn by doing so, the plane of the nozzle plate is set to be inclined at a range of 10 ° to 60 ° with respect to the axis of the mounting bracket, and the yarn entanglement is characterized in that: Processing equipment. 2. A distance between the plane of the cover plate and the plane of the nozzle plate is 0.5 to 4.0 mm, and the cover plate and the cover plate are connected by a line drawn from the yarn guide on the inlet side to the yarn guide on the outlet side. The yarn entanglement processing apparatus according to claim 1, wherein a horizontal distance from the nozzle plate to the opening is 1.0 to 5.0 mm. 3. The yarn entanglement processing apparatus according to claim 1, wherein a concave portion is provided in a plane of the cover plate and / or a plane of the nozzle plate that constitutes the yarn processing area.