JPH06184807A - Cleaning of filament conveyer roll and apparatus therefor - Google Patents

Abstract

PURPOSE:To provide a filament conveyer roll cleaner capable of inhibiting growth of dirt such as a lubricant adhering to the roll surface in a spinning process, of extending the cleaning period up to a period equal to the cleaning period of a spinning nozzle and of using regardless of the size of the roll, composed of a small number of constituting components, excellent in easiness of the cleaning operation and workability and capable of safe operation and to provide its cleaning method. CONSTITUTION:One invention is a filament conveyer roll cleaner equipped with filament conveyer rolls 8a and 8b for winding and drawing a filament (T) around them and capable of preventing adhesion of dirt to the filament conveyer rolls and the other invention is its cleaning method. Each filament conveyer roll is equipped with a sprayer unit 20 having a spray nozzle 21 for spraying liquid or steam in the neighborhood of the position where a filament comes first into contact with the filament conveyor roll. While spraying liquid or steam through the spray nozzles to the filament conveyor rolls the filament conveyor rolls are cleaned.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a thermoplastic polymer melted by a melter, discharged from a spinneret, cooled, oiled, and then coated with a roll made of metal or a roll coated with metal or ceramic. The present invention relates to a cleaning device and a cleaning method for a yarn transfer roll used in a yarn manufacturing process in which a yarn is drawn and drawn at a speed of 2 and wound by a winder.

[0002]

2. Description of the Related Art Normally, in the yarn making process, as shown in FIG.
The extruder M to remove the thermoplastic polymer.
After melting and extruding, the yarn T is discharged from the spinneret K
To spin. Then, the yarn T is cooled in the space below the mouthpiece K.
In order to improve the thread passing property of these yarns T,
O_SRoll R after refueling with_TAnd a pair of rolls R_E1, R
_E2After winding, stretching and heat treatment between
It is not wound by a winder.

In another spinning process, as shown in FIG. 11, a yarn T is wound around a roll R _E for a half circumference, stretched and heat treated, and then wound up by a winding machine (not shown), or As shown in FIG. 12, the yarn T is drawn by a roll R _E at a desired speed, or is drawn and then transferred by a roll R _T , and similarly wound by a winder. There is.

In the rolls for transporting the yarn T, the yarn T is stretched immediately before the roll R _E , so that the white powder generated on the yarn T adheres to the roll R _E. That is,
The roll R _E located immediately before stretching is most likely to be soiled, and the yarn T
The oil agent or the like applied to the surface of the yarn T in order to improve the yarn passing property in the original yarn process and the higher-order processing process adheres to the portion of the roll R _E that comes into contact with the yarn T and its surroundings as dirt. Further, when the roll R _E is a heat treatment roll, more stubborn dirt adheres to the surface of the roll R _E.

Therefore, the yarn T passing through the roll R _E has fluff, the shrinkage of the yarn T is deteriorated, and the yarn-forming property is adversely affected. Therefore, the surface of the roll R _E is Depending on the transport speed of the strip T, the fineness, the type of the oil agent, etc., it is usually 1 in the yarn making device using the rolls shown in FIGS.
It was necessary to perform periodical cleaning every day or every several days, and in the yarn making apparatus using the roll shown in FIG.

Similarly, in the spinneret K, stains such as monomers, oligomers and polymers adhere to the surface of the spinneret and grow with time. This stain adversely affects the spinnability, such as the occurrence of yarn breakage and uneven fineness. Therefore, the spinneret K
The surface of is cleaned of stains (hereinafter referred to as "correction of the mouthpiece") according to the fineness, the type of polymer, the mouthpiece type, and the like. The spinneret correction cycle is generally longer than the roll cleaning cycle and is performed every several tens of days.

In the spinneret washing process, the spinneret can be easily washed by cutting the yarn, and the spinneret can be replaced in place of the washing. On the other hand, in the hot roll cleaning work, water for cooling the hot roll and water, a cleaning solution containing an activator such as sodium hydroxide, a saucer for water and the cleaning solution, a workbench, and rubber gloves for workers And prepare a cotton cloth.

After the yarn is cut, first, the cotton cloth is moistened with water and wound around a hot hot roll to lower the temperature. Then, another cotton cloth is impregnated with a cleaning liquid to wipe off stains such as oil on the surface of the hot roll. Then
Wipe the surface of the hot roll with another cotton cloth soaked with water, wipe off the cleaning liquid remaining when the dirt is wiped off, and finally wipe the hot roll surface with a dry cloth to clean the hot roll. Ends.

In such a manual roll cleaning operation, there is a high risk of burns due to hot hot rolls or steam, and the heat source of the hot rolls and the periphery of the machine stand of the spinning machine are contaminated with water or cleaning liquid. However, there is a problem that the life of the yarn making device is shortened and that it takes a long working time. For this reason, various cleaning devices for mechanically cleaning the hot roll are provided. For example, the first and second cleaning devices disclosed in Japanese Patent Laid-Open No. 61-231233 and Japanese Utility Model Laid-Open No. 2-78585. Is proposed.

The first cleaning device disclosed in Japanese Patent Laid-Open No. 61-231233 discloses a hot roll supported in a cantilevered manner on a shaft, a box having a U-shaped cross section, and an outer peripheral surface of the hot roll. The cleaning unit is integrally formed with a brush that abuts against the nozzle, a cleaning liquid injection nozzle, a motor that rotates the brush, a rubber pad, and the like. In this cleaning device, the rubber pad is brought into contact with an end surface of a hot roll, the cleaning portion is fixed to the hot roll by a negative pressure, and then a cleaning liquid is jetted from the nozzle while rotating the brush by the motor, thereby the surface of the hot roll. Clean the dirt attached to the.

The second cleaning device disclosed in Japanese Utility Model Laid-Open No. 2-78585 discloses a hot roll supported in a cantilevered manner on a shaft, a casing having a through hole in the center, and a casing for supporting the casing. Guide roller, a seal member that adheres to the outer peripheral surface of the hot roll, a bearing that is interposed between the seal member and the casing to rotate the hot roll with respect to the casing, and a cleaning liquid injection nozzle It is equipped with a configured cleaning unit. In this cleaning device, the hot roll is rotated by a motor (not shown), the cleaning liquid is ejected from the injection nozzle, and the casing is manually moved in the rotation axis direction of the hot roll, thereby the surface of the hot roll. To wash.

[0012] Further, in addition to these cleaning devices, as a device from the viewpoint of making the surface of the hot roll less likely to be contaminated, for example, a third cleaning device disclosed in JP-A-1-52494 is disclosed. Are known. This cleaning device has a box that covers the entire device, the entire surface is closed by a front plate, and the rear surface is an inner cover that is closely attached to the box via packing or the like (not shown). A hot roll arranged in a space formed by the cover and a hot-roller provided near the center of the hot-roll in the axial direction are provided with a T-shaped blowing nozzle. An object of the present invention is to make it difficult for dirt to adhere to the hot roll by jetting heated steam toward the hot roll and covering the entire hot roll with the atmosphere of the heated steam.

[0013]

The first cleaning device (Japanese Patent Laid-Open No. 61-231233) is structurally
Can be used only for cantilever type hot rolls,
The length of hot rolls that can be used is fixed, and it cannot be applied to hot rolls of different lengths. Also, it is difficult to select a brush material that has a high cleaning effect and can maintain the cleaning effect for a long period of time. Furthermore, the structure is complicated and the total weight of the device is as heavy as 10 kg, which makes cleaning work difficult,
There are problems such as not being able to work safely.

Further, a second cleaning device (actual Kaihei 2-785)
No. 85) requires a cleaning device to be prepared for each hot roll having a different outer diameter in order to bring the seal member into close contact with the outer peripheral surface of the hot roll. Also, it is difficult to select the material of the guide roll that supports the casing without damaging the surface of the hot roll and can move in the axial direction. Furthermore, since the cleaning work is performed with the hot roll exposed,
There are problems such as being caught in a hot roll and being accompanied by the risk of burns.

Further, a third cleaning device (Japanese Patent Publication 1-524)
No. 94), since the blowing nozzle is provided near the center of the hot roll in the axial direction, the cleaning treatment near the base end side of the hot roll, which is the most contaminated by the yarn, becomes insufficient,
The purpose of making dirt less likely to adhere cannot be achieved.
Also, because the hot roll is arranged in the space formed by the box and the inner cover, it is very difficult to thread the yarn.

Moreover, in the above-mentioned washing of the spinneret and the hot roll, it is necessary to cut the yarn in consideration of the safety and easiness of the work, but the spinneret and the hot roll are used. The washing cycle does not always match. In this case, as described above, the hot roll cleaning operation is much more complicated and time-consuming than the cleaning of the die. Moreover, in cleaning the hot rolls, as in the case of cleaning the spinneret, the yarns must be cut, which causes problems such as a decrease in the productivity of the yarns and an increase in the number of man-hours for the yarn making operation. Therefore, it is desirable to extend the cleaning cycle of the hot roll to the cleaning cycle of the die so that the hot roll can be cleaned together with the cleaning of the die.

The present invention has been made in view of the above points, and in the spinning process, the washing cycle can be extended to the washing cycle of the spinneret by suppressing the growth of dirt on the oil agent or the like adhering to the roll surface. It is possible to provide a cleaning device for a yarn transfer roll that can be used regardless of the size of the roll, has a small number of components, is easy to clean, has excellent workability, and can be safely operated, and a cleaning method therefor. To aim.

[0018]

In order to achieve the above object, the inventor of the present invention has made extensive studies on the contamination of rolls with an oil agent or the like in the spinning process. As a result, stains on the roll due to the oil agent applied to the yarn tend to adhere to the portion where the yarn comes into contact with the roll for the first time, and this stain causes water, warm water, or steam at the portion where the yarn comes into contact with the roll for the first time. The present invention has been completed by finding the fact that the spraying significantly reduces the cleaning cycle, which extends the cleaning cycle of the roll to the cleaning cycle of the spinneret.

According to the first aspect of the present invention, in the cleaning device for a yarn transfer roll, the yarn transfer roll is provided with a yarn transfer roll for winding and pulling the yarn around and suppressing adhesion of dirt to the yarn transfer roll. The yarn transfer roll is provided with a spraying device having a spray nozzle for spraying a liquid or water vapor in the vicinity of the yarn transfer roll that comes into contact with the yarn transfer roll for the first time.

Preferably, the yarn transfer roll has an injection nozzle for injecting a pressurized cleaning liquid, and a cleaning means for reciprocating the injection nozzle in the roll axis direction of the yarn transfer roll is provided. Further, preferably, the spray nozzle and the spray nozzle are integrally provided. Moreover, more preferably,
The yarn transfer roll is a hot roll having a heating means.

According to a second aspect of the present invention, there is provided a method for cleaning a yarn transfer roll, which comprises a yarn transfer roll for winding and winding the yarn, and suppressing dirt from adhering to the yarn transfer roll. Then, in the yarn transfer roll, a spraying means having a spraying nozzle for spraying liquid or water vapor is arranged in the vicinity of the yarn contacting the yarn transfer roll for the first time, and the liquid or water vapor is sprayed from the spraying nozzle. The yarn transfer roll is configured to be washed while being sprayed onto the yarn transfer roll.

Preferably, the spray liquid is water or warm water.

[0023]

[Operation] In the yarn transfer roll cleaning device and the cleaning method in the yarn making process, the yarn is first applied to the roll from the spraying means arranged in the vicinity where the yarn first contacts the yarn transfer roll. When sprayed on the contacting portion, the adhesion of the oil agent applied to the yarn wound around the roll to the roll is significantly reduced.

Water, warm water or steam suppresses the adhesion of the oil agent from the yarn to the roll, and extends the roll cleaning cycle to the spinning spinneret cleaning cycle. In particular, in the yarn transfer roll cleaning device, the cleaning means provided on the roll is moved to a position where it does not interfere with the roll during spinning, and during cleaning, the roll surface is applied while reciprocating along the roll portion. Wash with pressure wash solution.

Here, if the spray nozzles of the spraying means and the spray nozzles of the cleaning means are individually provided, the respective nozzles can be appropriately arranged at intended positions, but if they are integrally provided, the number of constituent parts can be reduced. .

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.
It will be described in detail based on. FIG. 1 is a schematic configuration view of a yarn transfer roll cleaning device of the present invention as seen from above. The yarn transfer roll cleaning device includes a housing 1 and a spraying means 2.
It has 0 and 20.

The housing 1 has a handle 2 at the front of the main body 1a.
Doors 2 and 3 having a and 3a are attached by hinges 2b and 3b so as to be openable and closable, and a seal member 4 made of an elastic material is used for liquid between the main body 1a and the doors 2 and 3 and between the doors 2 and 3. The cylindrical body 8, which is tightly sealed and described later, also serves as heat retention when it is a hot roll, for example. Further, a thread guide port 1b is provided on an upper portion of the main body 1a, and a thread guide port 1c is provided on a side portion of the main body 1a. Rails 1d, 1d and rails 1e, 1e are provided in the vicinity of the thread guide openings 1b, 1c,
Covers 5 and 5 for preventing liquid leakage are attached. on the other hand,
The bottom wall of the main body 1a is slightly inclined so that the center becomes low, and the discharge port 1f is provided at the center. As shown in FIG. 2, the discharge port 1f discharges liquid and water vapor sprayed from a spraying means 20 described later from a discharge pipe 6 to a discharge pit 7.
To discharge. Further, in the housing 1, there are provided cylindrical bodies 8, for example, hot rolls 8a and 8b around which the yarn T is wound and subjected to a heat drawing process.

Cylindrical body 8, that is, hot rolls 8a, 8b
Is a drive motor attached to the machine stand (not shown)
The yarn T is rotated at a preset speed, wound around the hot roll 8a arranged on the upstream side and the hot roll 8b arranged on the downstream side a plurality of times, and is drawn at a predetermined speed. While carrying. As shown in FIG. 2, the yarn T is introduced into the housing 1 from a yarn outlet 1b provided on the upper portion of the main body 1a, stretched by hot rolls 8a and 8b, and then provided on a side portion of the main body 1a. It is led out of the housing 1 from the thread guide port 1c.

In the spraying mechanism 20, the yarn T has the hot roll 8
They are arranged in the vicinity of first contact with a and 8b, respectively. Therefore, in the following description, the spray mechanism 20 arranged on one of the hot rolls 8a will be described, and the spray mechanism 20 arranged on the other of the hot rolls 8b will be designated by the same reference numerals in the drawings. The detailed description will be omitted.

The spraying mechanism 20 comprises a spraying nozzle 21, a water pipe 22 and an air pipe 23, and sprays water, hot water or steam on the surface of the hot roll 8a. Water pipe 2
As shown in FIG. 3, 2 is connected to a pipe P _W for supplying water, hot water or steam via a solenoid valve V _W , and an air pipe 23 connects a pipe P _{A for} pressurized air and a solenoid valve V _A. Connected through. Here, the solenoid valves V _W and V _A are
It is electrically connected to the control panel 30 and its operation is controlled by a control signal output from the control panel 30.

Therefore, in the spray mechanism 20, as shown in FIG. 4, the water or hot water supplied from the pipe P _{W is} supplied from the pipe P _A by the ejector effect in the gap portion 21a of the spray nozzle 21. It is mixed with the compressed air in the mixing area A _M and is atomized on the surface of the hot roll 8a. When spraying steam, the steam is supplied to the pipe P _W and sprayed.

In the yarn transfer roll cleaning device constructed as described above, the yarn T conveyed in the yarn making process is hot-stretched by the hot rolls 8a and 8b and carried out to the outside of the housing 1. To be done. In the meantime, in each of the spraying means 20, water, warm water, or steam is sprayed from the spray nozzle 21 to the vicinity of the yarn T for the first contact with the hot roll 8a or the hot roll 8b.

By spraying this water, warm water or steam, the adhesion of dirt such as an oil agent to the hot rolls 8a, 8b is significantly reduced, and the cleaning cycle of the hot rolls 8a, 8b extends close to the cleaning cycle of the spinneret. In the yarn transfer roll cleaning device having the above-described configuration, 180 cc / h of water or warm water is supplied from the water pipe 22 by each spraying means 20.
r, pressured air of 1.5 kg / cm ² from the air pipe 23 was pressure-fed to the spray nozzle 21 and sprayed on the surfaces of the hot rolls 8a and 8b.
No dirt adhered to the surfaces of the hot rolls 8a and 8b even after the lapse of days.

From the water pipe 22, pressure 1.5 kg /
also cm ² · G, 240 ℃ steam was sprayed at a flow rate of 2 kg / hr, the same results were obtained. Next, a second embodiment of the present invention will be described below. In the following description, the same components as those in the first embodiment will be designated by the same reference numerals. FIG. 5 is a schematic configuration view of the yarn transfer roll cleaning device of the present invention as seen from above. The yarn transfer roll cleaning device includes a housing 1, cleaning means 10, 10 and spraying means 20, 20. There is.

The housing 1 has a handle 2 at the front of the main body 1a.
Doors 2 and 3 having a and 3a are attached by hinges 2b and 3b so as to be openable and closable, and a seal member 4 made of an elastic material is used for liquid between the main body 1a and the doors 2 and 3 and between the doors 2 and 3. The cylindrical body 8, which is tightly sealed and described later, also serves as heat retention when it is a hot roll, for example. Further, a thread guide port 1b is provided on an upper portion of the main body 1a, and a thread guide port 1c is provided on a side portion of the main body 1a. Rails 1d, 1d and rails 1e, 1e are provided in the vicinity of the thread guide openings 1b, 1c,
Covers 5 and 5 for preventing liquid leakage are attached. on the other hand,
The bottom wall of the main body 1a is slightly inclined so that the center becomes low, and the discharge port 1f is provided at the center. The discharge port 1f collects the pressurized cleaning liquid sprayed from the cleaning mechanism 10 described later, the liquid sprayed from the spraying means 20, and the steam, as shown in FIG.
As shown in, the discharge pipe 6 discharges to the discharge pit 7.
Then, in the housing 1, a cylindrical body 8, for example,
Hot rolls 8a, 8 around which a yarn T is wound and subjected to a heat drawing treatment
b is provided.

Cylindrical body 8, that is, hot rolls 8a, 8b
Is a drive motor attached to the machine stand (not shown)
The yarn T is rotated at a preset speed, wound around the hot roll 8a arranged on the upstream side and the hot roll 8b arranged on the downstream side a plurality of times, and is drawn at a predetermined speed. While carrying. As shown in FIG. 6, the yarn T is introduced into the housing 1 from the yarn outlet 1b provided on the upper portion of the main body 1a, stretched by the hot rolls 8a and 8b, and then provided on the side portion of the main body 1a. It is led out of the housing 1 from the thread guide port 1c.

The cleaning mechanism 10 cleans the oil agent adhering to the surfaces of the hot rolls 8a and 8b that convey the yarn T with a high-pressure liquid, and is provided in each of the hot rolls 8a and 8b. Therefore, one cleaning mechanism 10 provided on the hot roll 8a will be described, and the other cleaning mechanism 10 provided on the hot roll 8b will be given the same reference numerals in the drawings and will not be described in detail. To do.

The cleaning mechanism 10 includes an injection nozzle 11, an air cylinder 12 for moving the injection nozzle 11 along the hot roll 8a, position detection switches S ₁ and S _2, controllers C ₁ and C _{2, and the} like. The injection nozzle 11 is attached to the tip of the hollow rod 13 and arranged on the side of the hot roll 8a, and injects a high-pressure pressurized cleaning liquid onto the surface of the hot roll 8a. The jet nozzle 11 stands by at the position shown in FIG. 5 while the yarn T is wound on the hot rolls 8a and 8b and the yarn making operation is performed. As the pressurized cleaning liquid, water is sufficient, but for example, an aqueous solution containing an activator such as sodium hydroxide or mixed water mixed with abrasive grains may be used and is not particularly limited. As shown in FIGS. 6 and 7, the injection nozzle 11 includes an air cylinder 12
Hollow rod 13 that penetrates into the housing 1 and is retractable into the housing 1
The flexible pipe 14 connected to the high pressure pipe 15 is connected to the storage tank 16 for the cleaning liquid via the high pressure pipe 15, and the cleaning liquid pressurized by the high pressure pump 17 provided in the high pressure pipe 15 is fed under pressure. The injection nozzle 11 generally has a diameter of 0.5 to 3.0 mm and a number of cylinders, although the diameter and number of the nozzles vary depending on the yarn T to be cleaned by the cylindrical body 8, the type of oil agent used, the cleaning cycle, and the like. There should be at least one per body 8. Then, the cylindrical body 8 made of the pressurized cleaning liquid jetted from the jet nozzle 11
In order to enhance the cleaning effect on the surface, the gap G between the injection nozzle 11 and the cylindrical body 8 (see FIG. 5) is set so that the transition region having a large destruction effect by the injection flow is located on the surface of the cylindrical body 8.
Decide. In this case, the injection nozzle 11 and the cylindrical body 8 are determined from the diameter of the injection nozzle 11 and the pressure of the pressurized cleaning liquid, which will be described later.
It is desirable to set the interval G between and to about 10 to 100 mm.

Here, the storage tank 16 is provided with a valve 16a for liquid level detection, and the liquid level of the cleaning liquid is held at a preset position by this valve 16a. Further, the pressurized cleaning liquid ejected from the ejection nozzle 11 is controlled to be ejected by switching the solenoid valve V provided on the high-pressure pipe 15 on and off by a switch 30a provided on the control panel 30. It is desirable that the high-pressure pump 17 can pressurize the pressurized cleaning liquid ejected from the injection nozzle 11 to 50 kg / cm ² · G or more, more preferably 200 kg / cm ² · G or more. For example, a plunger pump or a gear pump. Etc. can be used.

The control panel 30 also includes a position detection switch S
₁ , S ₂ , the controllers C ₁ , C ₂ , the high-pressure pump 17 provided in the high-pressure pipe 15, the solenoid valve V, and the solenoid valves V _W , _{VA of} the spray mechanism 20 described later are electrically connected, and the position detection switch S _1, the high-pressure pump 17 by a signal from S _2, the electromagnetic valve V and the solenoid valve V _W, a controller for controlling the operation of the V _a is built.

The air cylinder 12 has a hollow rod 13
5 to one which infested operated into the housing 2 as shown by the two-dot chain line, as shown in FIG. 7, the pressurized air pipe P _A
Is connected via the switching valve 18 and the controllers C ₁ and C ₂ , and the operation of the switching valve 18 is switched between normal and reverse in response to signals from the position detection switches S ₁ and S ₂ . Position detection switch S
_1, S ₂ detects the reciprocation position of the hollow rod 13 that is infested actuated by an air cylinder 12, as shown in FIG. 5, the washing stroke L _a and pressurized to be cleaned hot roll 8a surface due to the injection nozzle 11 The position of the switch can be adjusted so that the arrangement interval L _B can be set equal to the cleaning stroke L _a with a switch that determines the injection timing of the pressure cleaning liquid.

The controllers C ₁ and C ₂ are the air cylinder 1
The speed of the hollow rod 13 driven by 2 is adjusted, that is, the moving speed of the injection nozzle 11 is adjusted based on a signal output from the speed detector S _V provided near the air cylinder 12 to the control panel 30. Then, the moving speed of the injection nozzle 11 is adjusted by the control signal output from the control board 30.

In the spraying mechanism 20, the yarn T is the hot roll 8
Since they are arranged in the vicinity of the first contact with a and 8b, respectively, like the cleaning mechanism 10, the hot roll 8a
Only the spraying mechanism 20 arranged on the other side will be described, and regarding the cleaning mechanism 20 arranged on the other hot roll 8b, the same reference numerals are given to the same constituent elements in the drawings and the description thereof will be omitted.

The spray mechanism 20 comprises a spray nozzle 21, a water pipe 22 and an air pipe 23, and sprays water, warm water or steam on the surface of the hot roll 8a. Water pipe 2
As shown in FIG. 7, 2 is connected to a pipe P _W for supplying water, hot water or steam via a solenoid valve V _W , and an air pipe 23 connects a pipe P _{A for} pressurized air and a solenoid valve V _A. Connected through. Here, the operation of the solenoid valves V _W and V _A is controlled by a control signal output from the control panel 30.

Therefore, in the spray mechanism 20, as shown in FIG. 4, water or hot water supplied from the pipe P _{W is} supplied from the pipe P _A due to the ejector effect in the gap 21 a of the spray nozzle 21. The mixture is mixed with the pressurized air in the mixing area A _M , and is sprayed in the form of mist on the surface of the hot roll 8a. When spraying steam, the steam is supplied to the pipe P _W and sprayed.

In the yarn transfer roll cleaning device configured as described above, the yarn T conveyed in the yarn making process is hot-stretched by the hot rolls 8a and 8b and carried out to the outside of the housing 1. To be done. In the meantime, in each of the spraying means 20, water, warm water, or steam is sprayed from the spray nozzle 21 to the vicinity of the yarn T for the first contact with the hot roll 8a or the hot roll 8b.

By spraying this water, warm water or steam, the adhesion of dirt such as an oil agent to the hot rolls 8a, 8b is significantly reduced, and the cleaning cycle of the hot rolls 8a, 8b is extended to near the cleaning cycle of the spinneret. When the hot rolls 8a and 8b reach the cleaning cycle, the yarn T is cut and the hot rolls 8a and 8b are cleaned as follows.

First, the operator operates the drive motor (not shown) to rotate the hot rolls 8a and 8b.
Next, when the switch 30a of the control panel 30 is turned on, the air cylinders 12 and 12 advance the hollow rods 13 and 13 at a speed set by the controllers C ₁ and C ₂ . As a result, first, the position detection switch S ₂ is activated, and then the position detection switch S ₁ is activated until the injection nozzle 1
1, 11 are hot rolls 8 from the standby position shown in FIG.
The cleaning stroke L _{a is} advanced along a and 8 b.

When the position detecting switch S ₁ is operated, a signal is output to the control board 30, and the control board 30 causes the air cylinders 12 and 12 to retract the hollow rods 13 and 13, and opens the solenoid valve V to increase the pressure. Operate the pump 17. As a result, from the storage tank 16 to the high-pressure pipe 15,
The pressure cleaning liquid is pressure-fed to the injection nozzle 11 through the flexible tube 14 and the hollow rod 13, and the pressure cleaning liquid is sprayed on the surfaces of the hot rolls 8a and 8b. At this time, hot roll 8
The pressurized cleaning liquid sprayed on the surfaces of a and 8b is collected in the housing 1 and guided to the discharge pit 7 through the discharge port 1f.

In this way, when the hollow rods 13 and 13 retreat to the position of the position detection switch S ₂ while injecting the pressurized cleaning liquid from the injection nozzle 11 to the hot rolls 8a and 8b, the control panel 30 is the same as above. Then, the hollow rods 13, 13 are advanced by the air cylinders 12, 12 and the cleaning operation is repeated. The number of times of this repetition can be input in the control panel 30 in advance, and the cleaning time can be set arbitrarily.

Then, the cleaning is completed, and the air cylinder 1
When the injection rods 11, 12 retreat the hollow rods 13, 13 and the injection nozzles 11, 11 retreat to the standby position, the control panel 30 stops the operation of the high-pressure pump 17 by a signal from the position detection switch S _2. The solenoid valve V is closed at the same time as the pressure feed of the pressure cleaning liquid is stopped. Such hot roll 8
In the cleaning of a and 8b, the cleaning may be performed while rotating the hot rolls 8a and 8b at a predetermined speed, or cleaning is performed by using inertial rotation when the power supply to the drive motor that is rotationally driven is stopped. You may go.

As described above, in the yarn making process, water is sprayed by the spraying means 20 onto the roll around which the yarn T is wound and wound.
By spraying hot water or steam, the cleaning cycle of the roll can be extended to the cleaning cycle of the spinneret, and when cleaning the roll, move the spray nozzle along the surface of the roll,
Rough flow of oil stains, dust, etc. adhering to the roll surface with the pressure washing liquid can provide a sufficient washing effect and at the same time can improve yarn productivity.

In the yarn transfer roll cleaning device having the above-described structure, 180 cc / hr of water or hot water is supplied from the water pipe 22 and 1.5 is supplied from the air pipe 23 by the spraying means 20.
When pressurized air of kg / cm ² · G was sent under pressure to the spray nozzle 21 and sprayed on the surfaces of the hot rolls 8 a, 8 b,
No dirt adhered to the surfaces of the hot rolls 8a and 8b even after the lapse of 20 days, which is the cleaning cycle of the spinneret.

From the water pipe 22, pressure 1.5 kg /
also cm ² · G, 240 ℃ steam was sprayed at a flow rate of 2 kg / hr, the same results were obtained. On the other hand, in the above-described yarn transfer roll cleaning device, an injection nozzle having a diameter of 1.2 mm is used, and the gap G between the hot rolls 8a and 8b is set to 40.
mm, a plunger pump was used as the high-pressure pump 17, the pressure of the pressurized water was set to 100 kg / cm ² · G, and the conventional cleaning device was too long to clean.
A matte roll having a length of 350 mm and an outer diameter of 220 mm was moved at a moving speed of 100 mm / sec, the surface temperature of the roller was set to 100 ° C., and the roller was rotated at 5000 rpm for cleaning treatment. As a result, an excellent effect was obtained as compared with the case of washing with a cotton cloth containing an aqueous sodium hydroxide solution.

When a roll having an outer diameter of 220 mm and a length of 250 mm and having a mirror-finished surface was subjected to cleaning treatment under the same conditions as steam, the same cleaning effect was obtained. Further, in the above-described yarn transfer roll cleaning device, since the cleaning work can be automated, the number of man-hours required per roll to be 3 man-days / day when the conventional manual work is performed is
The number of man-hours per roll can be reduced to 0.8, and the cleaning work can be performed safely. In addition, as described above, even rolls of different diameters or different lengths can be easily cleaned, and a brush is used. Even if it did not exist, a sufficient cleaning effect was obtained.

Here, the injection nozzle 11 and the spray nozzle 21
May be integrated as shown in FIGS. 8 and 9. still,
In the following description, the same components as those of the above-described embodiments will be described with the same reference numerals. That is, as shown in FIG. 8, the hot rolls 8a, 8 arranged in the housing 1 are
The processing nozzles 40, 40 that are movable along the hot rolls 8a, 8b are provided in the vicinity of the yarn T that comes into contact with the hot rolls 8a, 8b for the first time.

As shown in FIG. 9, the processing nozzle 40 is attached to the tip of the hollow rod 14 connected to the high-pressure pipe 15 via the flexible pipe 14, and the high-pressure pipe 15 is located upstream of the flexible pipe 14. Side is connected to a pipe P _W for supplying water, hot water or steam via a solenoid valve V _W, and the upstream side of the hollow rod 14 is connected to a pipe P _{A for} pressurized air via a solenoid valve V _A. There is.

When the yarn T is wound around the hot rolls 8a and 8b and subjected to the heat drawing process in the yarn making process, the solenoid valve V is closed by the signal from the control panel 30 and the solenoid valve V _W ,
Open V _A. As a result, water or warm water is sprayed from the processing nozzle 40 in the vicinity where the yarn T first contacts the hot rolls 8a and 8b. At this time, when the steam is sprayed, the steam is supplied to the pipe P _W and the solenoid valve V _A is closed.

On the other hand, when cleaning the hot rolls 8a and 8b, the air cylinder 12 is operated by the signal from the control panel 30 to reciprocate the hollow rod 13, and the solenoid valves V and V _A are opened. The solenoid valve V _W is closed. As a result, the cleaning liquid in the storage tank 16 pressurized by the high-pressure pump 17 is sprayed from the tip of the processing nozzle 40 onto the surface of the hot roll 8a or the hot roll 8b,
Dirt such as oil is cleaned.

Here, in FIG. 8, the position detection switches S ₁ and S ₂ , the controllers C ₁ and C ₂ and the speed detector S _{V are shown.}
Is not shown. As a yarn transfer roll to which the cleaning device for a yarn transfer roll and the cleaning method thereof according to the present invention can be applied, as shown in FIGS. Although the embodiment in which the strip T is wound and transferred is shown, the present invention is not limited to this embodiment. For example, the yarn transfer roll may be applied also to a mode in which the yarn T is wound around a single roll for half a round like the yarn transfer roll RE shown in FIGS. 11 and 12 above. The yarn transfer roll having such a configuration is also included in the cleaning device for the yarn transfer roll and the cleaning method thereof according to the present invention. Further, the yarn transfer roll does not have to be a hot roll and may be a normal roll not equipped with a heating means.

[0061]

As is apparent from the above description, according to the cleaning device for a yarn transfer roll and the cleaning method thereof according to the present invention,
In the spinning process, the cleaning cycle can be extended to the cleaning cycle of the spinneret by suppressing the growth of stains on the oil agent adhering to the surface of the roll, and it can be used regardless of the size of the roll. It has excellent effects such as being simple and excellent in workability, and being able to work safely.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the present invention, and is a plan view of a yarn transfer roll cleaning device to which a yarn transfer roll cleaning method is applied.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a schematic configuration diagram showing a piping system and an electrical connection system of a cleaning device for a yarn transfer roll.

FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 2 for explaining the ejector effect of water or hot water and pressurized air in the spray nozzle.

FIG. 5 shows a second embodiment of the present invention and is a plan view of a cleaning device for a yarn transfer roll.

6 is a sectional view taken along line VI-VI of FIG.

FIG. 7 is a schematic configuration diagram showing a piping system and an electrical connection system of a cleaning device for a yarn transfer roll.

FIG. 8 shows a modification of the second embodiment and is a plan view of a cleaning device for a yarn transfer roll.

FIG. 9 is a schematic configuration diagram showing a piping system and an electrical connection system of a yarn transfer roll cleaning device.

FIG. 10 is a schematic view of a yarn transfer roll cleaning device and a yarn manufacturing device to which the cleaning method of the present invention is applied.

FIG. 11 is a schematic view of a yarn making device showing another embodiment to which the yarn transfer roll washing device and the washing method of the present invention are applied.

FIG. 12 is a schematic view of a yarn making device showing still another embodiment to which the yarn transfer roll washing device and the washing method of the present invention are applied.

[Explanation of symbols]

1 Housing 2, 3 Door 4 Sealing Material 6 Discharge Pipe 7 Discharge Pit 8 Cylinder 8a, 8b Hot Roll 10 Cleaning Mechanism 11 Injection Nozzle 12 Air Cylinder 13 Hollow Rod 14 Flexible Pipe 15 High Pressure Pipe 16 Storage Tank 17 High Pressure Pump 18 Switch valve 20 spraying mechanism 21 spray nozzle 22 the water pipe 23 air pipe 30 control panel 40 processing nozzle S _1, S ₂ position detecting switch C _1, C ₂ controllers V solenoid valves V _A, V _W solenoid valves S _V speed detector P _A Piping (water, hot water or steam) P _W piping (pressurized air)

Claims (6)

[Claims] 1. A cleaning device for a yarn transfer roll, comprising a yarn transfer roll for winding and winding a yarn, and suppressing adhesion of dirt to the yarn transfer roll, wherein the yarn transfer roll is provided with the yarn. A cleaning device for a yarn transfer roll, characterized in that a spraying means having a spray nozzle for spraying a liquid or steam is provided in the vicinity of the first contact with the yarn transfer roll. 2. The yarn transfer roll has an injection nozzle for injecting a pressurized cleaning liquid, and a cleaning means is provided for reciprocating the injection nozzle in the roll axis direction of the yarn transfer roll. Item 1. A cleaning device for a yarn transfer roll according to item 1. 3. The yarn transfer roll cleaning device according to claim 1, wherein the spray nozzle and the spray nozzle are integrally provided. 4. The cleaning device for a yarn transfer roll according to claim 1, wherein the yarn transfer roll is a hot roll having a heating means. 5. A cleaning method for a yarn transfer roll, comprising: a yarn transfer roll for winding and winding a yarn around; and a method for cleaning a yarn transfer roll, the method comprising: A spraying means having a spraying nozzle for spraying liquid or water vapor is arranged in the vicinity of the first contact of the yarn with the yarn transfer roll, and the liquid or water vapor is sprayed from the spraying nozzle to the yarn transfer roll. A method for cleaning a yarn transfer roll, which comprises cleaning the yarn transfer roll. 6. The method for cleaning a yarn transfer roll according to claim 5, wherein the spray liquid is water or warm water.