KR20220124991A - Appratus for generating mist - Google Patents

Abstract

The present invention relates to a mist generation apparatus and, more specifically, to a mist generation apparatus capable of atomizing liquid to be supplied to a cut part. In accordance with one embodiment of the present invention, the mist generation apparatus includes: a tank part having an internal space formed to store liquid, and having a discharge port formed to be connected to the internal space; a mist generation part placed higher than the water surface of the liquid in the internal space, having an internal space formed into a venturi shape with an open lower end, and mixing compressed air injected from the outside with the liquid suctioned from the internal space, in the internal space to generate and spray mist downward; and a filtering part located below the mist generation part, and filtering the mist sprayed from the mist generation part, by 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 area.

In general, a cutting machine tool increases the durability of the machine and supplies cutting oil to the cutting part of the workpiece to increase the machining speed.

In the past, cutting was carried out by supplying a large amount of cutting oil to sufficiently wet the cutting area, but during the operation of the machine tool, the cutting oil was scattered to the outside, contaminating the working environment and shortening the service life of the machine tool. .

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

The conventional mist generating device is located in the inner space of the housing in which the oil is stored, and includes a mist generating unit that mixes air and oil supplied through an air conveying pipe and an oil conveying pipe to generate mist and sprays it into the internal space, The oil in the mist state 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 is also changed according to the change in the level of the liquid stored in the inner space, in order to discharge an appropriate amount of the mist, the discharge valve according to the change in the liquid level Or there is a problem that the air supply valve must be adjusted.

Accordingly, there has been a demand for a mist generating device in which an appropriate amount of mist is discharged without control of the valve.

Korean Patent No. 10-1200384

An object of the present invention is to provide a mist generating device in which an appropriate amount of mist is discharged without controlling a valve.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

In one embodiment of the present invention, an internal space for storing a liquid is formed, and a tank part in which an outlet is formed to communicate with the internal space, is disposed higher than the water surface of the liquid in the internal space, and the lower This open venturi-shaped inner space is formed, and a mist generating unit that mixes the compressed air injected from the outside and the liquid sucked in from the inner space in the inner space to generate a mist and sprays it downward, and at the lower side of the mist generating unit 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 an 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 to be positioned 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 floating on a liquid in the inner space, a through hole through which the upright bar is formed, and movable up and down along the upright bar; It may include a first mesh 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 respectively surrounding the upper circumference and the lower circumference of the upright bar.

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, the upper member in which a hollow is formed, and surrounding the spaced space between the upper member and the lower member 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, the mist generating unit may be combined with a grinding net at the bottom.

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

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

1 is a cross-sectional view showing the inside of a mist generating apparatus according to a first embodiment of the present invention.
2 is a cross-sectional view showing the inside of the mist generating apparatus according to the second embodiment of the present invention.
3 is a plan view showing a part of the filtering unit of the mist generating apparatus according to an embodiment of the present invention.
4 is a perspective view illustrating a first mesh and a spacer of the mist generating apparatus according to an embodiment of the present invention.
5 is a cross-sectional view illustrating a first mesh and a spacer of the mist generating apparatus according to an embodiment of the present invention.
6 is an exemplary view of the use of the mist generating apparatus 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 several different forms, and thus 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.

Throughout the specification, when a part is said to be “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member interposed therebetween. Including cases where In addition, when a part "includes" a certain component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

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 apparatus 1 according to a first embodiment of the present invention.

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

The tank unit 10 is a component for accommodating a liquid, and an inner space 11 may be formed, and an outlet 12 may be formed in communication with the inner 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 be 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 disposed higher than the water surface of the liquid in the inner space 11, and the lower end where compressed air and liquid are mixed is an opening An inner space 21 may be formed. At this time, the lower end of the mist generating unit 20 may be located lower than the outlet (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 the liquid is internal through the liquid transfer pipe 50 connected to the lower part of the inner space 11 . It may 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 the compressed air injected into the inner space 21 . Accordingly, the liquid in the inner space 11 may be sucked into the inner space 21 through the liquid transfer pipe 50 and mixed with compressed air to become mist. The mist located in the inner space 21 may be sprayed into the inner space 11 through the open 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 grinding net 23 coupled to the lower end, and a diaphragm 22 may be formed along the periphery of the outer surface. At this time, the mist sprayed toward the inner space 11 may collide with the crushing net 23 and be crushed.

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

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

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

The upright bar 31 may be formed in the form of a circular or polygonal pole of an elongated form, and may be fixedly installed on the lower surface of the inner space 11 to stand upright. 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 located between the water surface of the liquid L in the inner space and the mist generating unit 20 . In addition, one or more outlet holes 322 may be formed through the base 32 so that the liquid formed on its upper surface can move into the inner space.

The first mesh 33 may be formed in the form of a sieve having a predetermined 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 shape that does not interfere with the movement of the 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 , and one end may be connected to the inner space 21 of the mist generating unit 20 , and the other end may be compressed air It may 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 region including the other end is located outside the tank unit 10 , and the flow rate control valve V1 is located outside the one region. ), a pressure regulator (A) and a moisture eliminator (B) may be formed.

The liquid transfer pipe 50 is a component for guiding 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 generating unit 20 , and the other end may be connected to the inner space 21 of the mist generating unit 20 . may be connected to the lower part of the inner space 11 .

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

A discharge pipe 60 for guiding the transfer of the mist to the cutting part may be connected to the discharge port 12 .

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

The filtering unit 30 is formed to float on the water surface of the liquid L in the inner space 11 , and the separation distance from the mist generating unit 20 may be adjusted according to a 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 a liquid in the inner space 11 , and an upper surface of the base 32 . A spacer 34 coupled to the first mesh 33 and the base 32 positioned to be spaced apart 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 a 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 formed on its upper surface can move into the inner space.

In addition, the filtering unit 30 may further include an elastic body 35 that is disposed to surround the upper circumference and the lower circumference of the upright bar 31 , and resists compressive force. The elastic body 35 can absorb the shock caused by the sudden rise of the base 32 to prevent damage to the base 32 and the first mesh 33 , and at this time, to surround 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), when the liquid level is lowered, the separation distance between the mist generating unit 20 and the filtering unit 30 increases, and does not move toward the filtering unit 30 . The number of mists moving to the mist floating space 111 through the gap between the mist generating unit 20 and the filtering unit 30 may increase. That is, as the mist floating space 111 is widened, the ratio of the number of mists that have not gone through the filtering unit 30 among the mists 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 . The number of mist moving to the mist floating space 111 through the can 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 mists filling the mist floating space 111 may increase.

In other words, in the present invention, the number of mists filtered by the filtering unit 30 is adjusted according to a change in the size of the mist floating space 111 due to a 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 outlet 12 without a separate control means.

4 is a perspective view showing the first mesh 33 and the spacer 34 of the mist generating apparatus 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 includes a lower member 341 coupled to the upper surface of the base 32 , an upper member 342 spaced apart from the upper side of the lower member 341 , and between the lower member 341 and the upper member 342 . It may include a second mesh 343 surrounding the separation space and supporting the upper member 342 .

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

The upper member 342 is formed in the form 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 the form of a sieve having a predetermined eye size, and the eye size may be smaller than that of the first mesh 33 .

For this reason, the mist moved toward the filtering unit 30 may be primarily filtered by the first mesh 33 , and may be 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 apparatus 1 according to the embodiment of the present invention.

The upper member 342 may have a stepped 3423 supporting the first mesh 33 protruding along the inner periphery of the hollow 3422 in the central portion.

The lower member 341 may have a water collecting groove 3412 in the upper and lower narrow shape in the center of the upper surface, and a moving hole 3413 may be formed through the center of the water collecting groove 3412 in the vertical direction. At this time, at least one outlet hole among the plurality of outlet holes 322 formed in the base 32 may be formed at a position corresponding to the moving hole 3413 .

For this reason, the liquid falling 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 water collecting groove 3412 and passes through the outlet hole. It can merge with the liquid in the space 11 .

On the other hand, the lower member 341 may have a first insertion groove 3411 into which the lower end of the second mesh 343 can be inserted is recessed in the upper surface, and the upper member 342 is formed on the lower surface of the second mesh 343 . A second insertion groove 3421 into which the upper end 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 as necessary, from the lower member 341 and the upper member 342 . Separation may be possible.

6 is an exemplary view of the use of the mist generating apparatus 1 according to the second embodiment of the present invention.

When compressed air is supplied to the mist generating unit 20 for a certain period of time in the state of FIG. The number of mists of relatively large particles moving to the mist floating space 111 through the gap between the mist generating unit 20 and the filtering unit 30 may be increased. At this time, the mist moving to the mist floating space 111 may be discharged to the outside of the tank 10 through the outlet 12 .

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

The foregoing description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains 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, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and likewise components described as distributed may also 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 their equivalents should be construed 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 part having an internal space for storing a liquid and having an outlet in communication with the internal space;
The inner space is disposed higher than the water level of the liquid, and an inner space in the form of a venturi with an open lower end is formed, and the compressed air injected from the outside and the liquid sucked from the inner space are mixed in the inner space to generate a mist. A mist generating unit to spray toward the sea downwards,
Located below the mist generating unit, the mist generating device characterized in that it comprises a filtering unit for filtering the mist sprayed from the mist generating unit according to the particle size.
According to claim 1,
The filtering unit,
an upright bar installed upright in the inner space;
a base fixedly coupled to the upright bar so as to be positioned between the water surface of the liquid and the mist generating unit;
a first mesh disposed to be spaced apart from the upper surface of the base;
It is coupled to the base and characterized in that it comprises a spacer for supporting the first mesh, mist generating device.
According to claim 1,
an upright bar installed upright in the inner space;
a base floating on the liquid in the inner space and having a through hole through which the upright bar is passed and movable up and down along the upright bar;
a first mesh disposed to be spaced apart from the upper surface of the base;
It is coupled to the base and characterized in that it comprises a spacer for supporting the first mesh, mist generating device.
4. The method of claim 3,
The filtering unit, Mist generating device, characterized in that it further comprises an elastic body respectively surrounding the upper circumference and the lower circumference of the upright bar.
4. The method of claim 2 or 3,
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;
and a second mesh surrounding the spaced space between the upper member and the lower member,
The first mesh, characterized in that seated in the hollow, mist generating device.
4. The method of claim 2 or 3,
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, a mist generating device, characterized in that the grinding net is coupled to the bottom.

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