KR940006246B1 - Spray nozzel for treatment of fabrics and regulating method for heat-air - Google Patents

Abstract

The method and apparatus is arranged that a rectifying plate having nozzle holes is inserted into respective nozzles to which high-temperature air is supplied, and an induction chamber and stagnation chamber are defined into three parts to uniformly blowing high-temperature air regardless of the position of nozzles.

Description

Spraying direction of high temperature air and wind pressure control method on the nozzle of tenter and dryer and its device

1 is a configuration diagram schematically showing a conventional tenter.

2 is a side view of FIG.

3 is a reference block diagram showing a state in which the apparatus of the present invention is applied.

4 is a reference perspective view showing an embodiment to which the apparatus of the present invention is applied.

5 is a reference perspective view of the excerpts of FIG.

6 is an embodiment of the present invention.

7 is a graph showing a state in which wind pressure measured on a nozzle is measured in a conventional tenter.

* Explanation of symbols for main parts of the drawings

1: casing 2: motor

3: ventilator 4: heat exchanger

5: guide duct 11: nozzle

9,20: nozzle hole 22: rectification plate

80: opening and closing door

The present invention is used to perform a heat setting process, a drying process, or a shrinkage process by heat treatment in a tenter, which is a kind of a textile machine, to supply high temperature hot air to a fiber fabric. The present invention relates to a method and apparatus for controlling the spraying direction of high temperature air and a wind pressure on a nozzle of a tenter.

In general, in the pore treatment of textile fabrics, a device for performing a heat setting process performed as a pre-dyeing process, a drying process performed as a post-dyeing process, and a shrinkage process by heat treatment, mainly a tenter group Will be used.

During the processing of the fiber fabric, the internal temperature of the tenter has been maintained at 180 to 220 degrees, and high-speed and high-temperature hot air is supplied to the fiber fabric through the nozzle to process the fiber fabric as desired. .

Thus, a nozzle apparatus for supplying hot wind of high speed and high temperature to a fiber fabric is conventionally as shown in FIGS. 1 and 2 of the accompanying drawings.

That is, the heat exchanger 4 connected to the ventilation apparatus 3 driven by the driving of the motor 2 is installed in the casing 1 partitioned into a constant size, and the guide is integrally formed with the ventilation apparatus 3. The nozzle holes 9 of the inclined or rectangular body in which the nozzle holes 9 are formed at the bottom surface 6 'or the upper surface 7' at one end of the duct 5 are respectively opposed to each other. The installed tenter was provided.

However, the conventional tenter of such a configuration has each of the nozzles 11 through the guide duct 5 in a state in which hot hot air heat exchanged from the heat exchanger 4 is accelerated by the driving of the ventilator 3. ) Is supplied to the fiber fabric T, which passes through the nozzle hole 9 and passes between the nozzles 11 at a constant constant velocity by a Kenvey system, etc. come.

However, according to this conventional method, when hot air passes through the nozzle hole 9, the hot air is moved by the forced blowing force of the ventilator 3 to reach the nozzle 11, that is, Because the hot air is pushed in one direction by the direction of blowing, that is, sprayed toward the right direction, the fabric T is oriented in the direction of moving the hot air due to the blowing force of the hot air. There was a disadvantage that can not expect a drying effect.

In addition, since the nozzle hole 9 is formed only on the bottom surface 6 'or the top surface 7' of the conventional nozzle 11, the tenter may be driven by sudden failure of the tenter or interruption of power supply. When the motor 2 is temporarily stopped or the power supply is stopped when the motor is temporarily stopped, the ventilator 3 is continuously operated by the rotational inertia force, so that the high temperature air supplied from the heat exchanger 4 is operated at high speed. It has been supplied to the nozzle 11 as it is, respectively.

For this reason, high temperature and high speed air is transferred to the fabric of the fabric paused through the nozzle hole 9 as it is, and the fabric is burned to a size similar to that of the nozzle hole 9, or at least, the surface of the fabric is burned by heat. Because of the formation, in the end there was a drawback to extract the above portion.

Due to this disadvantage, conventionally, as shown in FIG. 1, an outlet port Y is formed so as to select a point of the guide duct 5 so that high-temperature and high-speed air can be discharged as it is. It was intended to solve the above problems.

However, since the discharge port Y is formed on the guide duct 5, although it is possible to discharge the high speed and high temperature air generated immediately after the driving of the tenter, the nozzle 11 is supplied with the nozzle hole ( 9) it was not possible to discharge the high temperature, high-speed air just before supplying to the fiber fabric (T), but was intended to rule out the above disadvantages, but only to reduce the disadvantages of the above disadvantages.

In addition, since the conventional nozzle 11 is installed in a guide duct 5 composed of a plurality of separate and relatively large through body, the high-speed air by the ventilator (3) through the guide duct (5) When supplied to the nozzle 11, not only different from each other depending on the position in which the nozzle 11 is installed in the guide duct 5, but also different in the longitudinal direction of the nozzle 11 installed at a predetermined position. It is impossible to supply high-speed, high-temperature air with a uniform wind velocity to the fiber fabric (T), resulting in uneven drying of the fiber fabric (T) or tissue treatment of the fiber fabric (T) by heat treatment. There was a disadvantage that the quality of the product is not uniform.

This example could be specifically recognized by the experiment conducted by the inventor.

For example, each nozzle 11 described above is indicated by AF as shown in FIG. 2 according to the position installed in the guide duct 5, and A'-F 'is indicated on the lower nozzle 11. Again, as shown in FIG. 1, the section in which each nozzle 11 is indicated by af in the longitudinal direction is selected, but the aforesaid indicated section is selected as a'-f 'for the lower nozzle 11. The wind pressure of the air was carried out a number of times under the same conditions, and the average value thereof was measured. As a result, it was found that the attached drawing 7 (a) was also the same as the drawing 7 (b).

As a result, it was found that the above-mentioned "a" display in the longitudinal direction of each nozzle 11 gradually increased from the "a" display to the "f" display. It was found that the two parts located on both sides, "A" and "F", were high while the centers "C" and "D" were low.

Similarly, although there is some difference, the lower nozzle 11 is also gradually increased from the "a" display set in the longitudinal direction to the "f" display, and both sides of each lower nozzle 11 are located "A". And "F" were high, while "C" and "D" at the center were low.

For this reason, there was a disadvantage in that the hot air on the fiber fabric (T) is different from each other and not uniformly dried or carried out as desired.

In addition, since the hot air heat exchanged while passing through the heat exchanger (4) is supplied to the nozzle 11 together with the foreign matter in the casing (1) or the foreign matter generated while passing through the nozzle (11) above the fiber fabric (T). Accordingly, when it is necessary to clean the inside of the nozzle 11, there is a disadvantage that it must be separated from the nozzle 11 on the guide duct 5.

The present invention was created in order to eliminate the above-mentioned conventional problems, and in particular, it is possible to inject each nozzle and hot air having a uniform wind pressure / wind velocity from the nozzle hole regardless of the position of the nozzle. It prevents the fiber fabric from being oriented in one direction by injecting it in the straight direction from the device.In addition, the device is stopped by the device itself or the power supply is interrupted, and the hot air can be bypassed from the nozzle. It is characterized by the fact that it makes it easy to clean the nozzle.

In order to solve this problem, in the present invention, by inserting a rectifying plate formed with a nozzle hole in the upper inclined surface with a constant inclination inside the nozzle, it takes a means to capture the induction chamber and the stagnation chamber by blowing the direction and wind pressure of the hot air. Adjustment is possible.

The means of the method according to the present invention is the hot air is supplied through the guide duct through the rectifying plate and the nozzle hole formed therein in the induction chamber, the direction of the hot air, that is, the hot air forcedly supplied from the guide duct is induced The direction of the high-temperature air, which is trying to move backward from the inlet of the chamber, is supplied to the stagnation chamber in a controlled state through the nozzle hole of the rectifying plate and then sprayed from the nozzle hole of the nozzle so that it can be sprayed vertically on the fiber fabric. In addition, the wind pressure generated in the longitudinal direction of the nozzle is distributed through the guide duct from the inlet of the nozzle to each of the nozzles as the rising wind pressure is moved to the rear of the nozzle, that is, the rear of the distribution chamber, the flow pressure gradually downwards. As it moves toward the rear by the slope of It is possible to maintain it.

In order to understand the means of the method of the present invention in more detail, it will be easily understood with reference to the attached drawings 3 and 4 in detail.

That is, as shown in the rectifying plate 22 in which a plurality of nozzle holes 20 are drilled by making an inclined surface 21 at a predetermined angle with an upper surface inside each nozzle 11 fastened to the guide duct 5. Can be brought into contact with the fiber fabric in the vertical direction from the nozzle hole 9 of the nozzle 11 by means of forming the hot air induction chamber 23 and the high pressure air stagnation chamber 24. It was possible to supply balanced hot air regardless of the installation position of the nozzle 11 or the longitudinal direction of the nozzle 11.

That is, the basic purpose of the present invention is to maintain the constant wind pressure per unit area on the guide duct 5 while supplying the hot air supplied as it is separately supplied to the respective nozzles 11, and the wind pressure rising by the reduction of the unit area. And the installation position of the nozzle 11 and the rear end of each of the nozzles 11 are blocked (see FIG. 2). It was possible to fundamentally eliminate the problem that different wind pressures are set for each position "af" and "a'-f '" set in the longitudinal direction of the nozzle 11 without this.

In other words, in the present invention, the above-described means, once the hot air moving in accordance with the wind speed through the guide duct 5 is supplied to the induction chamber (23).

At this time, the directionality of the high-temperature air in one direction is extremely attenuated by passing through the nozzle hole 20 formed in the rectifying plate 22 in the induction chamber 23. 24).

In this way, since the hot air supplied to the stagnation chamber 24 has already passed through the nozzle hole 20 of the rectifying plate 22, the directivity due to the blowing force is attenuated. According to the perforated direction of the ball (9) is discharged as it is.

This is because the hot air discharged from the stagnation chamber 24 along the nozzle hole 9 bored in the nozzle 11 is supplied in a direction perpendicular to the fiber fabric T, so that the fiber fabric T is The heat treatment and drying process is performed without being scattered.

In addition, since the inclined surface 21 having a constant inclination of the top surface of the rectifying plate 22 is formed to be inclined high along its longitudinal direction at the inlet side of the nozzle 11, each nozzle in the guide duct 5 The hot air after being distributed to (11) is wider than the guide duct (5), although its inlet side is wider, so the wind pressure rising while being distributed to the nozzle (11) is induced to the rear side of the nozzle (11). As the wind pressure gradually descending while moving to the rear of the chamber 23 moves along the induction chamber 23 narrowed by the inclined surface 21, the generated wind pressure is maintained as it is.

Therefore, the wind pressure generated along the longitudinal direction of the nozzle 11 is almost balanced to be supplied to the stagnation chamber 24 through the nozzle hole 20, and then to the fiber fabric T through the nozzle hole 9 again. When supplied, the degree of wind pressure on the fiber fabric (T) is to be subjected to the heat treatment and drying process in a state almost similar.

The degree of inclination of the rectifying plate 22 can be changed depending on the size or length of the nozzle 11 as well as can be adjusted according to the wind power of the supplied hot air.

In addition, in forming the nozzle hole 20 or the nozzle hole 9, as shown in FIGS. 4 and 5, the direction in which hot air passes through the face plate of the rectifying plate 22 or the nozzle 11. By embossing 41 so as to have a plane 40 having a predetermined slope, the nozzle hole 20 or the nozzle hole 9 on the plane 40 is inclined with the moving direction of the hot air. By forming it to face each other, it is possible to firstly remove the directivity of the hot air from the nozzle hole 9 and then control the directivity of the hot air again to the nozzle hole 20.

That is, since the nozzle holes 20 and 9 are formed on the plane 40 formed with a predetermined inclination in the direction of the hot air moving in the induction chamber 23 and the stagnation chamber 20, the high temperature air is eventually formed. The directional control of can achieve a greater effect.

On the other hand, when the driving device is stopped by the failure of the device or the power interruption as described above, when the hot air is supplied to the nozzle 11 by the rotational inertia of the ventilation device 3, it is discharged as it is without passing through the nozzle hole 9. In this case, as shown in FIG. 4 and FIG. 6, the opening and closing door 80 is installed at the rear end portions X and X 'of the nozzle 11, and as shown in FIG. The same purpose can be achieved.

When the cause of the driving device of the device occurs as described above, by opening the opening and closing door 80 at the same time as the driving device of the device, the hot air itself is formed in the nozzle 11 at a higher wind pressure than atmospheric pressure, so the high temperature air Since it is immediately discharged to the atmosphere it is possible to eliminate the above problems.

Of course, the opening and closing operation of the opening and closing door is possible if the opening and closing operation of the opening and closing door 80 immediately when the driving system of the device, that is, the fiber system (T) transfer is stopped, and such a device is a conventional method. Of course it can be carried out by the use of a detection sensor by any means.

In addition, cleaning of the inside of the nozzle 11 may be easily solved by opening and closing the opening and closing door.

According to the method and apparatus of the present invention, different wind pressures are applied to the respective nozzles 11 provided through the guide duct 5 separately depending on the installation position and the longitudinal direction of each nozzle 11. Through the rectifying plate 22 as described above, through the nozzle hole 9 of each nozzle 11 described above in the stagnation chamber 24, the uniform wind pressure and the directivity of the hot air are controlled. The high temperature air is supplied to the fiber fabric T uniformly through the nozzle hole 9 while maintaining the air of the air. For this reason, the dry state of the desired bar is uniform in the fiber fabric T. And so on.

In addition, if the driving device of the device is stopped by an external or internal cause, if a series of known devices are operated to immediately open and close the door 80 through a sensing sensor that detects it, it is continuously supplied by the rotational inertia of the ventilation device 3. Since the high-temperature air is discharged to the outside as it is bypassed as it is directly bypassed to the opening and closing door 80 through the nozzle 11 in each of the nozzles 11 as described above, the fabric fabric (T) is moved to the nozzle (11) Even if it is stopped in between, damage such as a stop mark due to high temperature air through the nozzle hole 9 can be eliminated, and when the inside of the nozzle 11 is to be cleaned, the opening / closing door 80 ) Can be opened and cleaned so you can work easily.

According to the present invention, the wind pressure applied to the nozzle of the conventional tenter machine is different from each other according to the installation position of each nozzle and the nozzle length direction so as to uniformly supply the hot air to the fiber fabric with its direction controlled. Uniformize according to its purpose such as heat treatment and dry condition, and remove the damage to fiber fabric by discharging the high temperature air to the outside even if the driving device is stopped due to the internal and external causes of the equipment. It is obvious that the invention is a very useful invention that can facilitate.

Claims (5)

In a tenter composed of a heat exchanger, a guide duct, and a nozzle, a rectifying plate having a nozzle hole is inserted into an upper inclined surface with a predetermined slope in each nozzle to be fastened on the guide duct to partition the induction chamber and the stagnation chamber. The blowing direction of the hot air to the nozzle of the tenter is characterized by equalizing the wind pressure of the heat exchanged hot air according to the installation position and length of each nozzle and controlling the spraying direction and supplying it to the fiber fabric through the nozzle hole. Wind pressure control method. The method of claim 1, wherein the nozzle is provided with an opening / closing door that opens and closes according to a driving device and a driving state of the tenter. In a tenter composed of a heat exchanger (4), a guide duct (5), and a nozzle (11) having a nozzle hole (9), inside each nozzle (11) fastened to the guide duct (5). The tenter, wherein the rectifying plate 22 is formed by drilling the plurality of nozzle holes 20 by forming the inclined surface 21 at a predetermined angle to form the induction chamber 23 and the stagnation chamber 24. Injection direction and air pressure regulating device of high temperature air to nozzle of air. The method of claim 3, wherein the nozzle hole 20 of the rectifying plate 22 and the nozzle hole 9 of the nozzle 11 has a plane 40 of a predetermined slope in the direction in which the hot air passes. Embossing (41) the blowing direction of the hot air and the wind pressure control device for the nozzle of the tenter, characterized in that formed on the plane (40) to face the moving direction of the hot air. 4. The apparatus of claim 3, wherein the opening and closing door (80) is provided at the rear end (X) and (X ') of the nozzle (11).