JPH0726438A - Yarn interlacing device with washing mechanism and method for automatic washing of the same in yarn production process - Google Patents

Abstract

PURPOSE:To enable stains of a yarn interlacing device incorporated in yarn production process to be washed away in a short time without needing any man power, and to enable the yarn interlacing device to be automatically washed while continuously producing yarns in an automatically switching winder. CONSTITUTION:The objective yarn interlacing device 3 is so designed that the inside of boxes 11, 12 provided at the top and bottom with slits 13, 14 for passing yarns respectively is fitted with an upper guide 15, interlacing nozzle 16 and lower guide 17 in succession in the yarn passing direction, and washing fluid jet nozzles 18, 18', 19, 19', 20, 20' are arranged against said upper guide, interlacing nozzle and lower guide respectively. In yarn production process, washing operation using these washing fluid jet nozzles is conducted when yarn switching operation is made in an automatically switching winder 9.

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 device incorporating a device cleaning mechanism, and a entanglement device for activating the device cleaning mechanism in a yarn manufacturing process provided with the yarn entanglement processing device. The present invention relates to a method of cleaning.

[0002]

2. Description of the Related Art When synthetic fibers such as polyamide fibers and polyester fibers are produced by melt spinning, high speed spinning is becoming the mainstream.

In this high-speed spinning process, usually, melt-spun spun yarn is cooled, a water emulsion oil agent or the like is applied thereto, and then is drawn at high speed by a godet roll, and is drawn without or after drawing. The method of winding at high speed with a machine is adopted. In order to reduce troubles such as yarn breakage, it is widely practiced to provide the running yarn with entanglement at a stage after the application of the oil agent.

Since the entanglement treatment is often performed immediately after the application of the oil agent, most of the oil moisture adhering to the yarn is scattered around by the fluid (air) for the entanglement treatment. For this reason, the amount of oil / water adhering to the winding package is considerably smaller than the amount of oil / water applied. Therefore, since a large amount of oil moisture is applied to the yarn by the oil agent applying device in order to compensate for the oil moisture scattering during the entanglement process, the amount of oil moisture scattered during the entanglement process is even greater.

When the amount of scattered oil and water is large, the atmosphere around the oil and water is contaminated by the scattered mist of oil and water, and the mist adheres to contaminate the surrounding devices.

Therefore, in order to prevent the scattered mist of oil and moisture from diffusing into the surrounding environment, it has been practiced to cover the confounding apparatus with a box-like body to limit the contaminated area. However, the inside of the box-shaped body that covers the confounding apparatus is still contaminated with a high-concentration oil-moisture mist, and the apparatus is contaminated.

By the way, when a water emulsion type oil agent is used for refueling, the scattered mist is a mixture of oil and water, and the mixed mist adheres to the device as it is. The oil-moisture mixed deposits are gradually dried by the atmospheric release of air, which is a medium during the entanglement process, and the moisture is evaporated and removed, and the oil and fat components of the oil agent remain to become deposits.

[0008] The deposits are particularly large in the guide and the tip of the entanglement nozzle among the box-shaped bodies covering the entanglement treatment device. This is because the guides are arranged in a space in which a large amount of oil / water mist scattered at the time of air entanglement floats. In addition, comparing the amount of deposits on the upstream side and the downstream side of the confounding, the upstream side is remarkably large. This is because the shape of the entanglement treatment nozzle is usually formed with a passage having a length of about 5 to 20 mm in the traveling yarn direction. The amount of oil and water adhered to the yarn gradually decreases as the yarn advances in the nozzle, and the amount of oil sprayed at the time when air is blown to the downstream side at the lower end of the confounding nozzle is Because there will be less.

[0009]

The deposits on these yarn paths cause guide obstacles in the yarn making process,
Induces thread breakage and oil-moisture adhesion spots. Therefore, in order to prevent deterioration of the spinnability and product quality over time, these deposits must be regularly washed and removed. Manual cleaning work was performed by washing the guides with a stream of water.

However, since this cleaning work is performed by manually cleaning the guides of the confounding processing device by hand, all positions in the multi-fiber yarn forming device such as 4 to 8 yarns are completely cleaned. Therefore, it took a considerable time such as 30 minutes to 1 hour. During this washing time, the loss time is the time when the product yarn cannot be wound, and the yarn during that time is a waste yarn.

Therefore, the present invention eliminates the above-mentioned drawbacks of the prior art and improves productivity, so that the time loss required for this guide cleaning can be shortened, and further, automatic cleaning without manual labor can be realized. The main purpose is to provide a possible device and method.

[0012]

In order to achieve this object, a yarn entanglement treatment device of the present invention has an upper guide, an entanglement treatment nozzle, and a box-like body inside a box having upper and lower yarn passage slit holes. In a yarn entanglement treatment device in which lower guides are sequentially provided in a yarn passage direction, a cleaning fluid is jetted into the box-shaped body toward the upper guide, the entanglement treatment nozzle, and the lower guide, respectively. A cleaning fluid ejection nozzle is provided.

Further, in the automatic cleaning method for the yarn entanglement treatment device of the present invention, the automatic yarn change-up winding machine for producing synthetic fibers while performing the yarn entanglement treatment by the yarn entanglement treatment device of claim 1 in the yarn making step. The method for obtaining a synthetic fiber package according to claim 1, wherein the cleaning fluid is ejected from the cleaning fluid ejecting nozzle at the time of thread switching operation in the automatic thread switching winding machine.

1 to 7 showing one embodiment of the apparatus according to the present invention, and FIGS. 8 to 9 showing one embodiment of the apparatus for the apparatus cleaning method according to the present invention.

1 and 2 are overall views of an embodiment of a yarn entanglement treatment device 3 of the present invention, each of which is a vertical cross-sectional view taken from the right side surface direction (I-I arrow in FIG. 2). 2) and a vertical cross-sectional view from the back side (cross-sectional view taken along the line II-II in FIG. 1).

FIGS. 3 (a) and 3 (b) are views showing a cleaning fluid piping system (cleaning fluid block 21) in which the cleaning fluid ejection nozzles 18 and 18 'are incorporated in the yarn entanglement treatment apparatus. The vertical cross-sectional view from the right side direction (see FIG. 3).
(b) A sectional view taken along the line AA) and a longitudinal sectional view from the back direction (a sectional view taken along the line BB in FIG. 3A).
Is.

4 (a) and 4 (b) are a rear view and a top view showing a state in which the cleaning fluid blocks 21, 21 'and 21 "are attached to the lid-like door body 12 in the yarn entanglement treatment apparatus. Is.

5 (a) and 5 (b) show a cleaning fluid jet nozzle 1
8 is a vertical cross-sectional view showing one embodiment (A- in FIG. 5 (b)).
It is a sectional view taken along the arrow A) and a rear view.

6 (a) and 6 (b) show the cleaning fluid jet nozzle 1
8 is a longitudinal sectional view showing another embodiment of No. 8 (A in FIG. 6 (b)).
FIG. 4A is a cross-sectional view taken along arrow A) and a rear view.

FIG. 7 is a schematic diagram of piping illustrating the supply path of the cleaning fluid in the present invention.

FIG. 8 is a front view and a side view showing an embodiment of a four-thread take-up yarn making process in which a yarn entanglement treatment device is provided.

9A and 9B are a top view and a front view illustrating the positional relationship among the upper guide 15, the lower guide 17 and the entanglement processing nozzle 16 in the yarn entanglement processing apparatus in the yarn making process of FIG.

As shown in FIG. 8, the yarn entanglement treatment device 3 for imparting entanglement to the traveling yarns is covered with box-like bodies 11 and 12 on the outside as shown in FIG. The box-shaped body is composed of a fixed box 11 fixed at a fixed position and a lid-shaped door body 12 that can be opened and closed. The lid-shaped door body 12 is attached by a hinge 44 so as to be openable and closable.

The yarn Y enters through the yarn passing slit holes 13 provided on the upper portions of the box-shaped bodies 11 and 12, and the upper guide 1
5, the yarn passage slit hole 1 provided in the lower part of the box-shaped bodies 11 and 12 through the entanglement treatment nozzle 16 and the lower guide 17.
Get out of 4.

On the side of the fixed box 11, the confounding processing nozzle 16,
Upstream and downstream guides (upper guide 15, lower guide 17) are arranged for each yarn. Then, the cleaning fluid block 2 is provided on the lid-like door body 12 side facing the upper guide 15, the entanglement treatment nozzle 16, and the lower guide 17.
1, 21 ', 21 "are arranged respectively.

Upper and lower thread passing slit holes 13, 14
May be formed as slit-like gaps on the upper and lower surfaces where the fixed box 11 and the lid-like door body 12 are joined, and the slit width may be such that the yarn Y can travel.

Each washing fluid block has a structure as shown in FIGS. 3 (a) and 3 (b). That is, the cleaning fluid ejection nozzles 18 and 18 'are arranged vertically, and the upper cleaning nozzle 18 has a cleaning fluid ejection hole 25 for ejecting the cleaning fluid toward the upper surface of the upper guide 15 and the lower cleaning nozzle. A cleaning fluid ejection hole 25 'for ejecting the cleaning fluid toward the lower surface of the upper guide 15 is formed in 18'.

Further, the block 21 has a cleaning nozzle 1
As a flow path for supplying the cleaning fluid to 8, 18 ', FIG.
(b) A common flow path hole 30 for air that extends horizontally in the left and right directions,
30 ', and connecting flow passage holes 29, 29' extending in a horizontal direction at a right angle from the common flow passage hole for air are bored,
Cleaning nozzles 18 and 18 'are fitted to the ends of the connection flow passage holes 29 and 29', respectively, and fluid-sealed by O-rings 27 and 27 '. Further, below the common flow passage holes 30 and 30 'for air, similarly, common flow passage holes 31 and 31' for water extending horizontally in FIG. 3B are drilled, and a small diameter is formed upward from this. The channel water guiding holes 32, 32 'extend to reach the lower portions of the connecting flow path holes 29, 29'. Therefore,
Compressed air and compressed water are mixed in the connection flow passage holes 29, 29 ', and the mixed fluid is washed nozzles 18, 18'.
Is supplied to.

As shown in FIGS. 5 and 6, the cleaning nozzle 18 has a cylindrical shape having an outer diameter slightly smaller than that of the connecting flow path hole 29, and has a passage (not extending to the tip) at its center. There is a cleaning fluid guide hole 24), at the tip of which there is a jetting hole 25 which is angled up or down with a passage of smaller diameter. An O-ring groove 26 is provided in the nozzle outer cylinder portion near the inlet of the cleaning fluid guide hole 24, and an O-ring 27 is provided in this groove. The ejection hole 25 may be one as shown in FIG. 5 or plural as shown in FIG.

The mounting positions of the cleaning nozzles 18 and 18 'are
The jetting direction of the washing fluid jetted toward the upper guide 15 obliquely from above or from diagonally below is adjusted to be appropriate, but the adjustment is performed by individually moving the washing nozzles in and out,
It is carried out by further rotating, and is fixed by set screws 28, 28 'as shown in FIG. 3 (a).

As shown in FIG. 8, the yarn Y melted and spun from the spinneret 1 and cooled is applied with an oil agent to each yarn Y by the oil agent applying device 2 and reaches the yarn entanglement processing device 3. The oil agent supplied to the yarn Y may be a water emulsion type or a non-hydrated type.

After being entangled by the yarn entanglement processing device 3, the godet inlet regulating guide 4, the first and second godet rollers 5 and 6, and the godet outlet regulating guide 7 are taken in this order, and the swing fulcrum guide 8 While being traversed with the fulcrum as a fulcrum, the bobbin 10 is wound up by the automatic yarn switching winding machine 9. In this yarn making process, usually, the first godet roller is drawn at a high speed such as 3000 m / min or more, drawn between the first and second godet rollers as needed, and further heat-treated by the second godet roller as needed. It The yarn entanglement processing device 3 may be provided between the godet exit regulation guide 7 and the swing fulcrum guide 8.

By the way, in recent high-speed yarn making, since a yarn path regulating member such as a guide is arranged so that the bending of the yarn path is reduced as much as possible, as shown in FIG.
The yarn Y spun from is spread in a horizontal row by the oil agent applying device 2 and then takes a yarn path that is converged toward the first godet roller 5. Therefore, the entanglement nozzles and the guide group in the yarn entanglement treatment device 3 arranged in the middle thereof, that is, the upper guide 15 (the position of the circle), the entanglement nozzle 16 and the lower guide 1
As shown in FIG. 9, 7 (positions of X) are arranged in a straight line, and this straight line is aligned with the yarn running direction before and after the straight line.

Therefore, the cleaning fluid blocks 21, 21 ′ and 21 ″ facing the upper and lower guides and the confounding nozzles are attached to the guides and the confounding nozzles at positions matching the lateral angles of the guides and the confounding nozzles. .. are provided at positions facing the cleaning nozzles 1 and 2.
8, ... will be attached.

Blocks 21, 21 'and 21 "are shown in FIG.
As shown in (a), the base plate 2 attached to match the heights of the upper and lower guides and the confounding nozzle, respectively.
It is fixed to 2, 22 ', 22 "by bolts 46 according to the angle of each guide.
2'and 22 "are height-adjusted, and are supported and attached by a support shaft 43 by stoppers 23, 23 'and 23", and are further connected and fixed by a back plate 48 and bolts 47 on the back side thereof. . Further, the support shaft 43 is supported by the bracket 45.

In this way, the blocks 21, 21 ', 21 "are
Is integrated into the support shaft 43 as shown in FIG.
Is provided on the side of the lid-like door 12 and stoppers 50 and 51 are provided on the side of the block 21 ... on the opposite side of the support shaft 43. Therefore, the block 21 is closed when the block 21 is closed.・ ・ Is always fixed in the same position. Moreover, if the blocks 21 ... And the lid-shaped door body 12 are opened, the yarn can be hooked on the upper and lower guides 15 and 17 and the interlacing nozzle 16 very easily.

On the side of the support shaft 43 of the block, the fixed box 1
A hinge 44 that engages and supports 1 and the lid-shaped door body 12 is provided, and the block 21 ... And the lid-shaped door body 12 can be individually opened and closed in the same direction. Fixing when the lid-shaped door body 12 is closed is performed by engaging a stopper 53 provided on the lid-shaped door body 12 and a stopper 52 provided on the fixed box 11.

[0038]

Operation: The cleaning mechanism attached to the yarn entanglement processing device operates as follows.

When the product yarn is constantly wound,
The cleaning fluid is not supplied to the cleaning fluid blocks 22, 22 ′, 22 ″ and the cleaning nozzles 18, ..., Therefore, the adhering oil agent is scattered from the yarn Y when passing through the entanglement nozzle 16.
It adheres to the upper guide 15, the entanglement nozzle 16, the lower guide 17 and the like, and accumulates with time to become a sticky solid of oil and fat.

In the case of the yarn making process in which the automatic yarn change-up winding machine winds the bobbin 10 that has been wound up, the bobbin to be wound is switched to the next empty bobbin, and then the bobbin is wound to the next empty bobbin. The winding bobbin is removed. While the yarn switching operation is performed, the yarn continues to be supplied to the winder, but the yarn during this period is wound as waste yarn on the outside of the full-winding bobbin or on the end outside the steady winding range. , It does not become the final product yarn. Therefore, during the yarn switching operation, even if the yarn gets wet with the cleaning liquid, the product quality is not adversely affected. Therefore, the cleaning of the confounding processing device is performed during the yarn switching operation. During the thread switching work here is the time from the full winding signal instructing the start of the thread switching operation until the thread is hooked on the blade cut of the next empty bobbin and the bunch winding of the bobbin end is completed, It takes about 10 to 30 seconds in a normal revolving type automatic yarn switching winder.

A normal revolving type automatic yarn change-up winding machine may be used as the automatic yarn change-up winding machine.

Further, in the case of a yarn making process using a winding machine other than the automatic yarn change-up winding machine, after the winding bobbin is fully wound and before the thread is wound on the next bobbin, that is, It is sufficient to perform the cleaning work of the yarn entanglement treatment device during the don-doff work from the full bobbin to the next empty bobbin.

First, as shown in FIGS. 7 and 3,
By the full winding signal output for each winding weight, the compressed air valve 34 corresponding to the winding weight opens, and the compressed air supply pipe 33
From which compressed air (which may be about 1 to ² kg / cm ² G) is supplied to the air common channel hole 30 of the block 21,
It is ejected from the ejection hole 25 through the connection flow path hole 29 and the cleaning fluid ejection nozzle 18. Following that, some (0.5 ~
The compressed water valve 36 opens with a delay (about 1 second), and compressed water (which may be about 1.5 to 2.5 kg / cm ² G) from the compressed water supply pipe 35 is supplied to the common water flow passage hole 31 of the block 21. To the connection flow path hole 29 through the small-diameter passage guide hole 32. The pressure of the water at this time must be higher than the pneumatic pressure for stable supply of the compressed water. Specifically, the differential pressure is preferably 0.5 kg / cm ² G or more.

In this way, the water / air mixed fluid for cleaning is supplied to each cleaning nozzle 18 through the connection flow path hole 29 and is ejected from the ejection hole 25 at the tip thereof.

In particular, as shown in FIG. 6, a plurality of ejection holes 25
Are placed close to each other (if the distance between the ejection holes is about 1.0 to 3.0 mm) and ejected in the same direction, the mutual water flows are attracted at the time of ejection and join on the extension line of the arrangement center of the ejection holes. However, the direction of the fluid is stable, and the water droplets collide with each other at the merging point to form finer water droplets, which forms a water stream that spreads to the surroundings, and it is possible to remove stains on parts around the guide. That is, not only the dirt on the extension line of the confluence center (deposited sticky solid matter) is washed off, but also the dirt around it is washed off, that is, a diffusion cleaning effect is exhibited. When three ejection holes 25 are provided as shown in FIG. 6, it is preferable to arrange them so as to form an equilateral triangle or an equilateral triangle.

The wash water (dirty water) mist containing the dirt that has been washed off here is not scattered to the outside by the box-shaped bodies 11 and 12, but drops along the inner wall of the box-shaped body, as shown in FIG. As described above, the gas is discharged to the outside from the discharge holes 37 and 38 that are continuously provided therebelow. Here, the discharge hole 37 is directly connected to the discharge pipe 39, and the discharge hole 38 includes the auxiliary tray 40 ', its outlet hole 38', and the tray 4 below it.
It is connected to the discharge pipe 39 through 0.

The sewage mist near the thread passage slit hole 14 in the lower portion of the box-like body flows down along the lower surface of the inclined hole end portion 41 inclined upward toward the end of the slit hole. At the lowest point, water drops drop and are collected by the tray 40 and discharged. It is preferable that the wastewater mist in the box-shaped body has a device structure that does not leak outside as much as possible.
For that purpose, for example, as shown in FIG. 1, the saucer may have a two-stage saucer structure.

When the cleaning is stopped, first, the pressure water valve 36 is closed, and only the compressed air is continuously supplied for a while to blow the inside of the connection flow path hole 29 and the cleaning nozzle 18 so that water droplets do not leak from the cleaning nozzle. After that, the air pressure valve 34 is finally closed to complete the cleaning process.

These valve operations may be incorporated in the sequence, and the compressed air valve 34 is first opened by the full winding signal output for each winding weight, and then the pressurized water valve 36 is opened. The cleaning time is set by a timer, and when stopped, the pressure water valve 36 and then the pressure air valve 34 are delayed and the sequence is completed.

As described above, a mixed fluid of compressed water and compressed air is preferable as the cleaning liquid, but water containing a cleaning agent, warm water, steam or the like may be used.

[0051]

【Example】

[Example] A nylon 6 yarn having 40 denier and 10 filaments was produced by an 8 yarn take-up high-speed direct spinning and drawing process according to Fig. 8 using the entanglement treatment device shown in Figs. 1 to 4 and 6. At this time, the take-up speed was 5000 m / min, and the water emulsion oil solution was supplied.

The cleaning of the entanglement treatment device is performed for 1.5 seconds at 1.5 kg / cm ² for 10 seconds while the bobbin is automatically switched.
Of compressed air and 2.0 kg / cm @ 2 of compressed water as a cleaning fluid.

Each time the bobbin was automatically switched to another yarn, the entanglement treatment device was washed and the yarn production was continued for 72 hours. No dirt was found on the guides or the entanglement nozzles in the entanglement treatment device.
It was possible to stably obtain a product yarn having excellent yarn quality and excellent yarn quality.

[Comparative Example] A yarn was produced in the same manner as in the above Example except that the cleaning fluid supply system attached to the entanglement treatment device was removed and the entanglement treatment device was not washed at the time of automatic yarn switching. Also, dirt on the tip of the entanglement nozzle was accumulated over time, and after 12 hours, stable yarn production became difficult due to increased yarn breakage.

Further, when the automatic yarn switching, the box-like body covering the entanglement processing device is opened, and the washing work of spraying the compressed water and the compressed air to the guide and the tip of the entanglement nozzle is manually performed, and all the washing work is completed. It took a long time of 4 minutes.

[0056]

Industrial Applicability According to the present invention, the dirt of the yarn interlacing device incorporated in the yarn making process can be cleaned in a short time and without requiring manpower. Particularly, in the automatic yarn change-up winding machine, it is possible to automatically clean the entanglement device while continuously producing the yarns without causing the quality deterioration of the product yarns and the productivity reduction.

Therefore, since the yarn entanglement device can be cleaned frequently while it is lightly soiled, it becomes easy to maintain the guide of the entanglement treatment device in a clean state, and the product yarn of stable quality can be stably obtained. It is possible to make yarn.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a whole device showing an embodiment of a yarn entanglement processing device 3 of the present invention, as viewed from the right side surface direction.

FIG. 2 is a vertical cross-sectional view from the back side of the entire device showing one embodiment of the yarn entanglement processing device 3 of the present invention.

FIG. 3 is a vertical cross-sectional view from the right side and a back side showing a cleaning fluid block 21 in which a cleaning fluid ejection nozzle 18 is incorporated in the yarn entanglement treatment device of the present invention (FIGS. 1 and 2). FIG.

FIG. 4 is a rear view and a top view showing a state in which the cleaning fluid block 21 is attached to the lid-shaped door body 12 in the yarn entanglement treatment device (FIGS. 1 and 2) of the present invention.

5A and 5B are a vertical sectional view taken along the line AA and a rear view showing an embodiment of the cleaning fluid ejection nozzle 18 used in the present invention.

6A and 6B are a vertical sectional view taken along the line AA and a rear view showing another embodiment of the cleaning fluid ejection nozzle 18 used in the present invention.

FIG. 7 is a schematic piping diagram illustrating a supply path of a cleaning fluid in the present invention.

FIG. 8 is a front view and a side view showing an embodiment of a yarn manufacturing process in which the yarn entanglement treatment device of the present invention is arranged.

9A and 9B are a top view and a front view illustrating the positional relationship between the upper guide 15, the lower guide 17, and the entanglement processing nozzle 16 in the yarn entanglement processing device in the yarn making process of FIG.

[Explanation of symbols]

2: Lubricant applying device, 3: Thread entanglement processing device, 4: Godet entrance regulation guide, 9: Automatic yarn switching winder, 1
0: bobbin, 11 and 12: box-shaped body (fixed box, lid-shaped door body), 13 and 14: thread passage slit hole, 15:
Upper guide, 16: Entanglement processing nozzle (entanglement nozzle),
17: lower guide, 18 and 18 ': cleaning fluid ejection nozzle (cleaning nozzle) for upper guide, 19 and 19': cleaning fluid ejection nozzle for confounding treatment nozzle, 20 and 20 ': cleaning fluid ejection for lower guide Nozzles, 21, 21 ', 2
1 ": cleaning fluid block, 24: cleaning fluid guide hole,
25, 25 ': Cleaning fluid jetting hole, 33: Pneumatic supply pipe, 35: Compressed water supply pipe

Claims (8)

[Claims] 1. A yarn entanglement treatment device comprising an upper guide, an entanglement treatment nozzle and a lower guide which are sequentially provided in the yarn passage direction inside a box-shaped body having upper and lower yarn passage slit holes. A cleaning fluid ejection nozzle for ejecting a cleaning fluid toward the upper guide, the confounding treatment nozzle, and the lower guide is provided inside the box-like body, and the yarn confounding treatment with a cleaning mechanism is performed. apparatus. 2. A portion of the box-shaped body on the side of the work surface is a lid-like door body that can be opened and closed, and the cleaning fluid jet nozzle is arranged in the lid-like door body. The yarn entanglement treatment device with a cleaning mechanism according to claim 1. 3. The cleaning fluid ejecting nozzle has a cleaning fluid ejecting hole for ejecting a cleaning fluid toward the upper surface and the lower surface of each of the upper guide, the entanglement processing nozzle, and the lower guide. The yarn entanglement treatment device with a cleaning mechanism according to claim 1. 4. The cleaning fluid ejecting nozzle comprises a cylindrical nozzle body having a cleaning fluid guide hole extending substantially horizontally and a cleaning fluid ejecting hole directed obliquely upward or obliquely downward, and the cylindrical nozzle. The yarn entanglement with a cleaning mechanism according to claim 1, wherein the body is connected to the cleaning fluid piping system in a state of being rotatable about the center of the nozzle body and movable in the longitudinal direction of the nozzle body. Processing equipment. 5. A method for producing a synthetic fiber while performing a yarn entanglement treatment by the yarn entanglement treatment device according to claim 1 in a yarn making step, and winding the synthetic fiber by an automatic yarn switching winder to obtain a synthetic fiber package, An automatic cleaning method for a yarn entanglement processing device in a yarn manufacturing process, characterized in that a cleaning fluid is ejected from the cleaning fluid ejecting nozzle during a yarn switching operation in an automatic yarn switching winder. 6. The automatic cleaning method for a yarn entanglement processing apparatus in a yarn manufacturing process according to claim 5, wherein the cleaning fluid ejected from the cleaning fluid ejecting nozzle is a mixed fluid containing water and air. 7. A compressed air supply pipe and a compressed water supply pipe are provided as pipes for supplying the cleaning fluid to the cleaning fluid jet nozzle, and compressed air and compressed water having a pressure higher than the compressed air are mixed during cleaning. 7. The automatic cleaning method for the yarn entanglement processing device in the yarn manufacturing process according to claim 6, wherein the cleaning fluid is ejected from the cleaning fluid ejection hole. 8. When starting the ejection of the cleaning fluid from the cleaning fluid ejection nozzle, starting the supply of compressed air and then compressed water in this order, and when ending the ejection of the cleaning fluid, The method for automatically cleaning a yarn entanglement processing device in a yarn making process according to claim 7, wherein the supply of compressed water and then compressed air are stopped in this order.