KR102555928B1 - Appratus for generating mist - Google Patents

Abstract

The present invention relates to a mist generating device, and more particularly, to a mist generating device for atomizing a liquid to be supplied to a cutting portion. Mist generating device according to an embodiment of the present invention is formed with an inner space for storing a liquid, a tank portion in which a discharge port is formed in communication with the inner space, disposed higher than the surface of the liquid in the inner space, and the bottom is opened A venturi-shaped inner space is formed, and a mist generator that mixes compressed air injected from the outside and a liquid sucked from the inner space in the inner space to generate mist and spray it downward, located below the mist generator, It is characterized in that it includes a filtering unit for filtering the mist sprayed from the mist generating unit according to the particle size.

Description

Mist generating device {APPRATUS FOR GENERATING MIST}

The present invention relates to a mist generating device, and more particularly, to a mist generating device for atomizing a liquid to be supplied to a cutting portion.

In general, a machine tool for cutting increases the durability of the machine and supplies cutting oil to a cutting part of a workpiece to improve processing speed and proceeds with cutting.

In the past, cutting was performed by supplying a large amount of cutting oil so that the cutting part was sufficiently moistened, but during the operation of the machine tool, the cutting oil was scattered to the outside, contaminating the working environment and shortening the lifespan of the machine tool. .

Accordingly, a mist generating device was developed that converts cutting oil into a mist like fog and supplies it to the cutting part.

A conventional mist generating device is located in the inner space of a housing where oil is stored and includes a mist generating unit that mixes air and oil supplied through an air transfer pipe and an oil transfer pipe to generate mist and spray it into the inner space. The mist-state oil sprayed into the inner space may be supplied to the machine tool through the outlet.

However, in the conventional mist generating device, since the width of the empty space in the inner space where the mist is located also changes according to the change in the level of the liquid stored in the inner space, in order to discharge an appropriate amount of mist, the discharge valve is adjusted according to the change in the level of the liquid. Or there is a problem that the air supply valve must be adjusted.

Therefore, there is a need for a mist generating device capable of discharging an appropriate amount of mist without adjusting the valve.

Korean Patent Registration No. 10-1200384

A technical problem to be achieved by the present invention is to provide a mist generating device capable of discharging an appropriate amount of mist without adjusting a valve.

The technical problem to be achieved by the present invention is not limited to the above-mentioned technical problem, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

In order to achieve the above technical problem, one embodiment of the present invention is formed with an inner space for storing liquid, a tank portion in which a discharge port is formed in communication with the inner space, and disposed higher than the water surface of the liquid in the inner space, the bottom An open venturi-shaped inner space is formed, and a mist generator that mixes compressed air injected from the outside and liquid sucked from the inner space in the inner space to generate mist and spray it downward, and a mist generator on the lower side of the mist generator. Positioned, it provides a mist generating device including a filtering unit for filtering the mist sprayed from the mist generating unit according to the particle size.

In one embodiment of the present invention, the filtering unit includes an upright bar installed upright in the inner space, a base fixedly coupled to the upright bar so as to be located between the water surface of the liquid and the mist generating unit, and a first spaced apart from the upper surface of the base. It may include a mesh and a spacer coupled to the base to support the first mesh.

In one embodiment of the present invention, the filtering unit includes an upright bar installed upright in the inner space, a base that floats on a liquid in the inner space and has a through hole through which the upright bar passes, and is movable up and down along the upright bar. It may include a first mesh disposed spaced apart from the upper surface, and a spacer coupled to the base to support the first mesh.

In one embodiment of the present invention, the filtering unit may further include an elastic body that surrounds an upper circumference and a lower circumference of the upstanding bar, respectively.

In one embodiment of the present invention, the spacer is disposed spaced apart from the lower member coupled to the upper surface of the base, the upper side of the lower member, and surrounds the upper member and the spaced apart space between the upper member and the lower member in which a hollow is formed It includes a second mesh, and the first mesh may be seated in the hollow.

In one embodiment of the present invention, the base may be formed through one or more outlet holes.

In one embodiment of the present invention, a grinding network may be coupled to the bottom of the mist generating unit.

According to one embodiment of the present invention, according to the change in the size of the mist floating space due to the change in water level, the number of mists filtered by the filtering unit is adjusted so that the ratio of mist to the mist floating space is maintained within a constant range. , an appropriate amount of mist can be discharged through the discharge port without a separate control means.

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a cross-sectional view showing the inside of a mist generating device according to a first embodiment of the present invention.
2 is a cross-sectional view showing the inside of a mist generating device according to a second embodiment of the present invention.
Figure 3 is a plan view showing a part of the filtering unit of the mist generating device according to an embodiment of the present invention.
4 is a perspective view showing a first mesh and a spacer of the mist generating device according to an embodiment of the present invention.
5 is a cross-sectional view showing a first mesh and a spacer of the mist generating device according to an embodiment of the present invention.
6 is an example of use of the mist generating device according to the second embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and, therefore, is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

In the entire specification, when a part is said to be "connected (connected, contacted, combined)" with another part, this is not only "directly connected", but also "indirectly connected" with another member in between. Including cases where In addition, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "include" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing the inside of a mist generating device 1 according to a first embodiment of the present invention.

The mist generating device 1 may include a tank part 10 , a mist generating part 20 and a filtering part 30 .

The tank unit 10 is a component for accommodating liquid, and an internal space 11 may be formed therein, and an outlet 12 may be formed to communicate with the internal space 11 at an upper portion thereof.

The inner space 11 may be partially occupied by the liquid L, and the remaining part of the inner space 11 not occupied by the liquid may become the mist floating space 111. That is, the empty space above the surface of the liquid in the inner space 11 may be the mist floating space 111 .

The mist generating unit 20 is a component that generates and sprays mist by mixing compressed air and liquid, and may be placed higher than the water surface of the liquid in the inner space 11, and the lower end where the compressed air and liquid are mixed is opened. The inner space 21 may be formed. At this time, the lower end of the mist generator 20 may be located lower than the discharge port 12 .

Compressed air may be injected into the inner space 21 from the outside through the air transfer pipe 40 connected to the compressor C, and liquid may be injected into the inner space 21 through the liquid transfer pipe 50 connected to the lower part of the inner space 11. It can be sucked into the inner space 21 from the space 11 .

The inner space 21 is formed in a venturi shape, and a Venturi effect may occur by compressed air injected into the inner space 21 . Accordingly, the liquid in the inner space 11 is sucked into the inner space 21 through the liquid transfer pipe 50 and mixed with compressed air to form a mist. The mist located in the inner space 21 may be sprayed into the inner space 11 through the lower end of the inner space 21, and at least some of them may move toward the filtering unit 30.

The mist generating unit 20 may have a crushing net 23 coupled to the lower end, and a diaphragm 22 may be formed along the circumference of the outer surface. At this time, the mist sprayed toward the inner space 11 may collide with the grinding network 23 and be pulverized.

The filtering unit 30 is a component that filters mist according to particle size, and may be located below the mist generating unit 20 . Among the mist moved toward the filtering unit 30, the mist having a predetermined size or less may pass through the filtering unit 30 and float in the mist floating space 111, and the mist exceeding a predetermined size may pass through the filtering unit 30 and float in the mist floating space 111. It can be formed and fall toward the lower part of the filtering unit 30 .

The filtering unit 30 may be fixedly installed at a certain height within the inner space 11 .

Referring to FIG. 3, the filtering unit 30 includes one or more upright bars 31 installed upright in the inner space, a base 32 fixedly coupled to the upright bar 31, and spaced apart from the upper surface of the base 32. A spacer 34 coupled to the disposed first mesh 33 and the base 32 to support the first mesh 33 may be included.

The upright bar 31 may be formed in the form of a long circular or polygonal column, and may be fixedly installed to stand upright on the lower surface of the inner space 11 . At this time, the lower end of the upright bar 31 may be coupled to the lower surface of the inner space 11, and the upper end may be coupled to the lower portion of the base 32.

The base 32 may be formed in a circular or polygonal plate shape, and may be positioned between the water surface of the liquid L in the inner space and the mist generator 20 . In addition, one or more outlet holes 322 may be formed through the base 32 so that the liquid condensed on the upper surface may move to the inner space.

The first mesh 33 may be formed in a sieve shape having a constant eye size.

The spacer 34 may be coupled to the upper surface of the base 32 to support the first mesh 33 and may be formed in a form that does not hinder the movement of mist passing through the first mesh 33 .

The air transfer pipe 40 is a component that guides the transfer of compressed air from the outside to the inner space 21, one end of which may be connected to the inner space 21 of the mist generator 20, and the other end of the compressed air pipe 40 It can be connected to the compressor (C) that supplies.

In addition, the air transfer pipe 40 may pass through the tank unit 10 so that at least one area including the other end is located outside the tank unit 10, and a flow control valve (V1) is located outside the tank unit 10. ), a pressure regulator (A) and a moisture remover (B) may be formed.

The liquid transfer pipe 50 is a component that guides the transfer of liquid from the inner space 11 to the inner space 21, and one end may be connected to the inner space 21 of the mist generator 20, and the other end may be connected to the lower part of the inner space 11

In addition, the liquid transfer pipe 50 may pass through the tank unit 10 so that at least one area located between one end and the other end is located outside the tank unit 10, and the flow rate is controlled in one area located outside. A valve V2 may be formed.

A discharge pipe 60 may be connected to the discharge port 12 to guide the transport of mist to the cutting part.

2 is a cross-sectional view showing the inside of a mist generating device 1 according to a second embodiment of the present invention. In FIG. 2, detailed descriptions of the same components as those of the first embodiment are omitted.

The filtering unit 30 is formed to float on the surface of the liquid L in the inner space 11, and the separation distance from the mist generating unit 20 can be adjusted according to the change in the level of the liquid.

Referring to FIG. 3, the filtering unit 30 includes one or more upright bars 31 installed upright in the inner space, a base 32 floating on the liquid in the inner space 11, and a base 32 from the upper surface of the base 32. A spacer 34 coupled to the spaced apart first mesh 33 and the base 32 to support the first mesh 33 may be included.

The base 32 may be formed in a circular or polygonal plate shape, and a through hole 321 through which the upright bar 31 passes may be formed, and according to the change in the level of the liquid L in the inner space 11 It may be movable up and down along the upright bar 31 . In addition, one or more outlet holes 322 may be formed through the base 32 so that the liquid condensed on the upper surface may move to the inner space.

In addition, the filtering unit 30 may further include an elastic body 35 that is disposed to surround the upper and lower circumferences of the upright bar 31 and resists compressive force. The elastic body 35 can prevent damage to the base 32 and the first mesh 33 by absorbing the shock caused by the sudden rise of the base 32, and at this time, to wrap around the upper circumference of the upright bar 31. The height of the elastic body 35a in a fully contracted state may be higher than the height from the upper surface of the base 32 to the first mesh 33 .

Due to the filtering unit 30 floating on the liquid L, the separation distance between the mist generating unit 20 and the filtering unit 30 increases when the liquid level decreases, and does not move toward the filtering unit 30. The number of mist moving to the mist floating space 111 may increase through the gap between the mist generating unit 20 and the filtering unit 30 . That is, as the mist floating space 111 widens, the ratio of the number of mists that have not passed through the filtering unit 30 among the mist filling the mist floating space 111 may increase.

When the liquid level rises, the separation distance between the mist generating unit 20 and the filtering unit 30 becomes closer, and the gap between the mist generating unit 20 and the filtering unit 30 is reduced without moving toward the filtering unit 30. Through this, the number of mist moving to the mist floating space 111 may be reduced. That is, as the mist floating space 111 narrows, the ratio of the number of mists that have passed through the filtering unit 30 among the mist filling the mist floating space 111 may increase.

In other words, according to the present invention, the number of mist filtered by the filtering unit 30 is adjusted according to the size change of the mist floating space 111 due to the change in water level, and the ratio of mist to the mist floating space 111 is constant. By maintaining the range, an appropriate amount of mist can be discharged through the discharge port 12 without a separate control means.

4 is a perspective view showing a first mesh 33 and a spacer 34 of the mist generating device 1 according to an embodiment of the present invention.

The first mesh 33 may be seated on the spacer 34 and may be separated from the spacer 34 if necessary.

The spacer 34 is a lower member 341 coupled to the upper surface of the base 32, an upper member 342 disposed spaced apart from the upper side of the lower member 341, and between the lower member 341 and the upper member 342. A second mesh 343 may be included to support the upper member 342 while surrounding the separation space.

The lower member 341 may be formed in the form of a circular or polygonal plate having a certain thickness, and its lower surface may be coupled to the upper surface of the base 32 .

The upper member 342 may be formed in the shape of a circular or polygonal plate having a certain thickness, and a hollow 3422 in which the first mesh 33 is seated may be formed therethrough.

The second mesh 343 may be formed in a sieve shape having a constant eye size, and the eye size may be smaller than that of the first mesh 33 .

Due to this, the mist moved toward the filtering unit 30 may be primarily filtered by the first mesh 33 and secondarily filtered by the second mesh 343 .

5 is a cross-sectional view showing the first mesh 33 and the spacer 34 of the mist generating device 1 according to an embodiment of the present invention.

A step 3423 supporting the first mesh 33 may be protruded along the inner periphery of the hollow 3422 at the center of the upper member 342 .

In the lower member 341, an upper and lower narrow water collection groove 3412 may be recessed at the center of the upper surface, and a moving hole 3413 may be formed to penetrate in the vertical direction at the center of the water collection groove 3412. At this time, at least one of the plurality of outlet holes 322 formed in the base 32 may be formed at a position corresponding to the moving hole 3413 .

As a result, the liquid that falls toward the lower member 341 after forming on the first mesh 33 and the second mesh 343 moves to the moving hole 3413 along the collecting groove 3412 and passes through the outlet hole to the inside. It can merge with the liquid in the space 11 .

Meanwhile, on the upper surface of the lower member 341, a first insertion groove 3411 into which the lower end of the second mesh 343 can be inserted may be recessed. A second insertion groove 3421 into which an upper end portion can be inserted may be recessed. That is, the position of the second mesh 343 can be fixed by being inserted into the first insertion groove 3411 and the second insertion groove 3421, and if necessary, from the lower member 341 and the upper member 342. separation may be possible.

6 is a view illustrating the use of the mist generating device 1 according to the second embodiment of the present invention.

When compressed air is supplied to the mist generator 20 for a certain period of time in the state (a) of FIG. 6, the water level of the liquid (L) is lowered and the mist floating space 111 is wide, as shown in the state (b) of FIG. and the number of relatively large particles moved to the mist floating space 111 through the gap between the mist generating unit 20 and the filtering unit 30 may increase. At this time, the mist that has moved to the mist floating space 111 may be discharged to the outside of the tank unit 10 through the outlet 12 .

On the other hand, when the diaphragm 22 is formed in the mist generating unit 20, the mist that has moved to the mist floating space 111 passes through the space between the inner wall surface of the tank 10 and the outer edge of the diaphragm 22 Then, it may be discharged to the outside of the tank unit 10 through the discharge port 12 .

The above description of the present invention is for illustrative purposes, and those skilled in the art can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be interpreted as being included in the scope of the present invention.

1: Mist generating device
10: tank part
20: mist generating unit
30: filtering unit

Claims (7)

A tank portion having an inner space for storing liquid and having a discharge port communicated with the inner space;
In the inner space, a venturi-shaped inner space disposed higher than the water surface of the liquid and having an open bottom is formed, and compressed air injected from the outside and a liquid sucked from the inner space are mixed in the inner space to generate mist. A mist generating unit that sprays toward the bottom of the sea;
It is located below the mist generating unit and includes a filtering unit for filtering the mist sprayed from the mist generating unit according to the particle size,
The filtering unit,
An upright bar installed upright in the inner space;
a base that floats on a liquid within the inner space and has a through hole through which the upright bar passes, and is movable up and down along the upright bar;
A first mesh disposed spaced apart from the upper surface of the base;
A spacer coupled to the base to support the first mesh;
Mist generating device characterized in that it comprises an elastic body surrounding the upper circumference and the lower circumference of the upright bar, respectively.
delete delete delete According to claim 1,
The spacer is
A lower member coupled to the upper surface of the base;
An upper member spaced apart from the upper side of the lower member and having a hollow formed therein;
Including a second mesh surrounding the separation space between the upper member and the lower member,
The first mesh, characterized in that seated in the hollow, mist generating device.
According to claim 1,
The base is characterized in that one or more outlet holes are formed through, mist generating device.
According to claim 1,
The mist generating unit, characterized in that the grinding network is coupled to the lower end, the mist generating device.

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