KR101768871B1 - Dilution apparayus of cutting oil - Google Patents

Abstract

Wherein a first inlet through which the first fluid can flow and a second inlet through which the second fluid can flow are formed and a discharge port through which the first fluid and the second fluid are discharged is formed Mixing portion; A first fluid supply part having one side connected to the first inlet formed in the mixing part and the other side connected to the first fluid supply part;
A second fluid supply part having one side connected to the second inlet formed in the mixing part and the other side connected to the second fluid storage part; And a discharge pipe connected to the discharge port formed in the mixing portion, wherein the discharge fluid is mixed with the first fluid and the second fluid to be discharged therefrom.

Description

[0001] DILUTION APPARATUS OF CUTTING OIL [0002]

The present invention relates to a coolant diluting device.

Generally, cutting oil can be divided into water-soluble cutting oil and non-water-soluble cutting oil. The cutting oil functions to lower the temperature of the heated cutting tool or to reduce the wear of the cutting tool during cutting. The cutting oil can be used by mixing the fluid such as water and the undiluted solution at a predetermined ratio depending on the desired function. In case of water-soluble cutting oil, if it is not diluted at a certain ratio, the durability of the cutting oil is lowered and the acid component (PH 7 or less) becomes stronger, resulting in bad smell, corruption and corrosion of the processed product. In addition, when a pump or the like is used to adjust the dilution ratio of the cutting oil, the volume of the apparatus becomes large and installation becomes troublesome, and it is difficult to control the constant dilution ratio desired by the user.

Korean Patent Publication No. 2010-0102433 (2010. 09. 24)

An embodiment of the present invention aims at providing a coolant diluting device for diluting a first fluid and a second fluid at a constant ratio.

It is another object of the present invention to provide a diluting device which is portable and can be easily installed.

It is also an object of the present invention to provide a coolant diluting device for enhancing the mixing ratio and efficiency in the mixing of the first fluid and the second fluid.

According to an embodiment of the present invention, a space is formed inside, a space communicated with the space, a first inlet through which the first fluid can flow and a second inlet through which the second fluid can flow are formed, A mixing portion in which a discharge port through which fluid is discharged is formed; A first fluid supply part having one side connected to a first inlet formed in the mixing part and the other side connected to the first fluid supply part; A second fluid supply part having one side connected to a second inlet formed in the mixing part and the other side connected to the second fluid storage part; And a discharge pipe connected to the discharge port formed in the mixing portion, wherein the first fluid and the second fluid are mixed and discharged.

And a flow rate adjusting device installed in the first fluid supply part and capable of opening and closing the flow path according to a predetermined fluid pressure.

Also, the flow rate regulating device may include a first inlet plate having a first inlet hole and a second inlet plate having a second inlet hole, and the flow rate of the first fluid may be adjusted according to the diameter of the second inlet hole have.

The first fluid supply unit may include a timer valve that includes a first conduit for forming a conduit and is installed on the first conduit to open and close the conduit; And a timer which is electrically connected to the timer valve and can transmit the opening / closing signal.

The first fluid supply unit may further include a first fluid supply valve provided on the first conduit and capable of manually opening and closing the fluid path, the first fluid supply unit including a first conduit forming the fluid path.

Further, the mixing section further includes a nozzle member on the discharge port side, and the nozzle member includes a first region in which the first fluid and the second fluid can be mixed, and an extended flow path provided on the discharge side of the first region, And a second region capable of forming turbulence.

Further, the first region may have a reduced cross-sectional area of the flow path in the flow direction of the fluid to be mixed, and the inner surface may be formed of an inclined surface or a curved surface.

In addition, the second region may be formed by extending the flow path from the end of the first region and decreasing the cross-sectional area in the flow direction of the fluid.

The second region forms a turbulent flow generating portion, and the turbulent flow generating portion may be formed in the inner wall surface side space in which the flow path extends from a point where the second region ends the first region.

The second fluid supply unit may further include a second flow path forming a flow path, and a reverse flow prevention valve installed on the second flow path so as to flow only in one direction.

The second fluid supply unit may further include a second conduit for forming a conduit, and a concentration control valve disposed on the second conduit and capable of regulating an inner diameter of the conduit formed by the second conduit.

In the apparatus for diluting a cutting oil according to the present invention, in the case of a cutting oil, the raw oil of the cutting oil and the first fluid are mixed at a predetermined ratio and the raw oil of the cutting oil can be efficiently diluted.

The apparatus for diluting the coolant according to the present invention is portable and can be easily installed.

Further, the apparatus for diluting the cutting oil according to the present invention can improve the mixing ratio of the cutting oil and the efficiency of the process of mixing the cutting oil.

1 is a perspective view for explaining an embodiment of the present invention;
2 is a view for explaining the first fluid supply unit of the embodiment of the present invention;
3A and 3B are cross-sectional views for explaining the flow rate control apparatus of the embodiment of the present invention
4 is a front view of a first inflow plate of an embodiment of the present invention
5 is an enlarged cross-sectional view for explaining an assembled portion of the first fluid supply portion and the mixing portion in the embodiment of the present invention
6 is a view for explaining the second fluid supply unit of the embodiment of the present invention
7 is a cross-sectional view for explaining the mixing portion of the embodiment of the present invention
8 is a cross-sectional view of a nozzle member for explaining a turbulent flow in the embodiment of the present invention

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following detailed description is provided to provide a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, this is merely an example and the present invention is not limited thereto.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. The following terms are defined in consideration of the functions of the present invention, and may be changed according to the intention or custom of the user, the operator, and the like. Therefore, the definition should be based on the contents throughout this specification. The terms used in the detailed description are intended only to describe embodiments of the invention and should in no way be limiting. Unless specifically stated otherwise, the singular form of a term includes plural forms of meaning. In this description, the expressions "comprising" or "comprising" are intended to indicate certain features, numbers, steps, operations, elements, parts or combinations thereof, Should not be construed to preclude the presence or possibility of other features, numbers, steps, operations, elements, portions or combinations thereof.

In the following description, the first fluid 10 and the second fluid 20, which are described as an embodiment of the present invention, may be water and a raw coolant for water-soluble cutting oil, but are not limited thereto But may mean two or more fluids each requiring mixing.

1 is a perspective view for explaining a coolant diluting device according to an embodiment of the present invention.

The other end of the first fluid supply part 100 connected to the first fluid storage part 1 may be connected to the first inlet 310 of the mixing part 300 (FIG. 7). The second fluid storage part 2 is connected to one side of the second fluid supply part 200 and the other side of the second fluid supply part 200 is connected to the second inlet part 320 of the mixing part 300 .

The first fluid supply unit 100 includes a timer 140, a timer 140 electrically connected to the timer valve 130 through a timer connection unit 141, a first fluid supply valve 160, and a first conduit 102 ). Here, the first conduit 102 is a tube that forms a flow path in the second fluid supply part 100, and the respective structures can be positioned in various arrangements on the first conduit 102 of the first fluid supply part 100.

The second fluid supply part 200 may include the backflow prevention valve 210 and the concentration control valve 220 in the second conduit 202. 7) is mixed with the second fluid (20 in FIG. 7), and the second fluid (20 in FIG. 7) is mixed with the second fluid The backflow prevention valve 210 may be located on the side of the mixing part 300 rather than the concentration control valve 220 on the second conduit 202 in order to quickly prevent the reintroduction of the backflow prevention valve 210 into the storage part 2.

7) and the second fluid (20 of FIG. 7) introduced into the mixing portion 300 are mixed in the mixing portion 300 and then discharged through the discharge pipe 400. The mixture of the first fluid

Here, the first fluid reservoir 1 may include a device capable of providing a fluid, such as a first fluid (10 in FIG. 7), to the first fluid supply 100. For example, if the first fluid (10 in Figure 7) is water, it may include water lines, water tanks, etc. that can provide water.

2 is a view for explaining a first fluid supply unit 100 according to an embodiment of the present invention.

The first fluid supply 100 may include a timer valve 130, a timer 140, and a first fluid supply valve 160 on the first conduit 102 as described above. According to the embodiment shown in FIG. 2, when the first fluid (10 of FIG. 7) supplied from the first fluid storage part 1 flows into the first fluid supply part 100, And can be led to the timer valve 130 side by the flow path. The timer valve 130 may be electrically connected to the timer 140 through a timer connection 141. The timer 140 may be electrically connected to the timer 140. The timer 140 may be electrically connected to the timer 140, Can be controlled. For example, it may be closed after a time set by the user for one operation.

Accordingly, the supply of the first fluid (10 of FIG. 7) is interrupted by the timer 140, so that the operation of the apparatus is automatically terminated after a predetermined time according to an embodiment of the present invention, 10) and the second fluid (20 of FIG. 7) are mixed and discharged.

The first fluid (10 in Fig. 7) is introduced into the mixing portion 300 (Fig. 1) via the first fluid supply valve 160 along the flow path formed in the first conduit 102 by the opened timer valve 130, Lt; / RTI > The first fluid supply valve 160 is a valve for manually opening or closing the first pipeline 102 by a user and a handle of the first fluid supply valve 160 is connected to the outer surface of the first pipeline 102 And can be opened and closed by rotation of the handle at right angles and return of the handle.

3A and 3B are cross-sectional views illustrating a flow rate control device 110 according to an embodiment of the present invention. Hereinafter, description will be made with reference to FIGS. 3A and 3B.

The flow control device 110 includes a first inflow plate 111 in which the first inflow hole 112 is formed, a second inflow plate 113 in which the second inflow hole 114 is formed, an opening and closing ball 115, Member 116 and an insert 117. In the embodiment shown in FIG.

The flow regulator 110 can be opened or closed according to the pressure applied in the direction in which the first fluid (10 of FIG. 7) supplied from the first fluid reservoir 1 is guided by the first conduit 102, The opening and closing can be determined depending on the pressure range of the predetermined fluid. The first fluid 10 may be supplied at various pressures when supplied and the second fluid 20 may be supplied to the mixing portion 300 via the flow rate regulator 110. [ Can be introduced into the mixing portion 300 via the inside of the second conduit 202 by the venturi principle according to the pressure difference.

Accordingly, when the supply amount of the first fluid 10 increases to increase the supply amount of the second fluid 20, the second fluid 20 flows into the mixing portion 300 Can also be increased. Conversely, if the supply rate of the first fluid 10 decreases and the supply amount decreases, the supply amount of the second fluid 20 into the mixing portion 300 can also be reduced. Therefore, even if the supply amount of the first fluid 10 is changed, a certain mixing ratio of the first fluid 10 and the second fluid 20 can be maintained in the mixing portion 300.

However, when the pressure of the first fluid 10 exceeds the predetermined pressure, the flow regulator 110 may be closed if the predetermined pressure is exceeded, which will be described later.

The insertion portion 117 of the flow rate regulator 110 may be formed, for example, in a hollow cylindrical shape. A discharge hole 118 may be formed at one end of the first inflow plate 111 and a second inflow plate 111 may be integrally formed with the first inflow plate 111 by welding or the like. Inside the insertion part 117, a disk-shaped second inflow plate 113 formed with a diameter capable of sliding friction can be positioned. That is, the second inflow plate 113 can be guided and moved along the inner surface of the insertion portion 117.

Further, the first inflow hole 112, the second inflow plate 113, and the discharge hole 118 may be coaxially positioned. The elastic member 116 can be positioned in the inner space formed by the insertion portion 117 and the elastic member 116 is positioned between the discharge hole 118 and the second inflow plate 113, So that the inflow plate 113 can be elastically supported. At the center of the second inflow plate 113, an opening / closing ball 115 having a predetermined shape such as a sphere shape or a rugby ball shape may be provided in the direction of the discharge hole 118. Thus, the opening / closing ball 115 is engaged with or separated from the inner circumference of the discharge hole 118 in accordance with the pressure of the first fluid (10 in FIG. 7) acting on the second inlet plate 113, Can be opened or closed.

3A is a cross-sectional view of the flow rate regulator 110 when no fluid pressure is applied. 7) flows into the insertion portion 117 and the pressure of the first fluid (10 of FIG. 7) is applied to the second inflow plate 113, the discharge hole 118 and the second The elastic member 116 positioned between the inlet plate 113 is contracted. Thus, the opening / closing ball 115 can reduce or block the amount of flow of the first fluid 10 by reducing or closing the cross-sectional area of the discharge hole 118 through which the first fluid (10 of FIG. 7) flows.

And FIG. 3B is a cross-sectional view of the state in which the discharge hole 118 is closed due to an increase in fluid pressure. When the pressure applied to the second inflow plate 113 by the first fluid 10 exceeds a preset pressure, the elastic member 116 contracts and the opening and closing ball 115 closes the discharge hole 118. [ Here, the elastic modulus of the elastic member 116 can be determined so that the discharge hole 118 is closed at the time when the excessive pressure as described above occurs. Here, the excess pressure is an example for explaining Fig. 3B. The pressure of the first fluid (10 in Fig. 7) is not limited, and can be selectively determined. On the other hand, when the elastic member 116 is a spring, the elastic modulus can be determined according to the determination of the spring constant.

The opening and closing ball 115 may be adhered and fixed to the second inflow plate 113 by welding or the like, and may be formed in a spherical shape, a rugby bowl shape, or a cylindrical shape. However, in order to minimize the occurrence of turbulence in the course of inducing the flow of the first fluid (10 of FIG. 7) to the discharge hole 118, a rugby ball-shaped opening / closing ball 115 close to the streamline can be selected. And the portion of the discharge hole 118 that is brought into contact when the opening and closing ball 115 closes the discharge hole 118 can be formed to be in surface contact or line contact with the outer surface of the opening and closing ball 115. For example, when the diameter of the discharge hole 118 on the outer side of the insertion portion 117 is smaller than the diameter of the discharge hole 118 on the inner side of the insertion portion 117, the opening and closing ball 115 is in contact with the discharge hole 118 can do.

4 is a front view of a first inflow plate 111 according to an embodiment of the present invention.

The second inflow plate 113 of the flow control device (110 of FIG. 3A) is elastically deformed by the elasticity of the elastic member (116 in FIG. 3A) when the pressure of the first fluid The diameter of the first inflow hole 112 may be smaller than the diameter of the second inflow plate 113. The diameter of the first inflow hole 112 may be smaller than the diameter of the second inflow plate 113. [ The number and the size of the second inflow hole 114 are not limited. However, as the number of the second inflow holes 114 increases, the area of the second inflow plate 113 receiving the pressure from the first fluid (10 of FIG. 7) The number and size of the second inlet plate 113 can be determined in consideration of the design value of the pressure applied to the second inlet plate 113.

5 is a partially enlarged sectional view of the first fluid supply part 100 and the mixing part 300 according to the embodiment of the present invention.

The first fluid supply part 100 is coupled to the first inlet 310 and the outer surface of the insertion part 117 is coupled through the sliding contact with the inner surface of the first fluid guide tube 350 formed in the mixing part 300 . The first fluid induction pipe 350 extends from the first inlet 310 in the inner space of the mixing part 300 by a predetermined length in the direction of the discharge port 330 in FIG. 7, May be formed. And may extend parallel to the direction of the discharge port (330 in FIG. 7) from the end of the inclined surface 351. The first fluid induction pipe 350 may be installed at a predetermined interval from the inner wall surface of the mixing portion 300.

6 is a view of a second fluid supply 200 according to an embodiment of the present invention.

The second fluid 20 may flow into the mixing portion 300 due to a pressure difference generated according to the speed at which the first fluid (10 of FIG. 7) is conveyed in the mixing portion 300. Here, the second fluid 20 may flow into the mixing portion 300 through the second conduit 202 and the second conduit 202 may include the concentration control valve 220 and the check valve 210 . The second fluid 20 supplied to the second fluid supply part 200 may be guided from the second fluid storage part 2 in FIG. 1 to the concentration control valve 220 through the second channel 202. The concentration control valve 220 controls the amount of the second fluid (20 in FIG. 7) mixed with the first fluid (10 in FIG. 7) in the mixing part 300, The cross-sectional area inside the second channel 202 can be increased or decreased through the control valve 220.

The second fluid (20 in FIG. 7) can be guided by the second conduit 202 to flow into the check valve 210 when the concentration control valve 220 is opened. Since the check valve 210 allows only one direction of fluid flow, it can be opened only for the flow of the fluid flowing in the direction of the mixing part 300 along the second channel 202. Therefore, when the start of the second fluid (20 in FIG. 7) is being transferred to the mixing part 300 during operation of the coolant diluting device, the pressure difference is lost, so that the mixed fluid flows from the mixing part 300 to the second channel 202 in the direction of the second fluid reservoir (2 in FIG. 1). The check valve 210 may block the flow of mixed fluid that flows back from this fluid flow to the second fluid reservoir (2 of FIG. 1).

Accordingly, although the concentration control valve 220 and the check valve 210 can be installed on the second fluid supply part 200 in any order, the concentration control valve 220 is relatively closer to the mixing part 300 Can be installed.

7 is a cross-sectional view illustrating a mixing unit 300 according to an embodiment of the present invention. The first inlet 310, the second inlet 320, and the outlet 330 may be formed in the mixing portion 300. A predetermined space is formed in the mixing portion 300 and a first region 341 in which a first fluid (10 in FIG. 7) and a second fluid (20 in FIG. 7) And the second region 342 may be positioned. A first fluid induction pipe 350 may be formed on the first inlet 310 through a sliding contact with an outer diameter of the insertion portion 117 of the first fluid supply portion 100. The first fluid induction pipe 350 may be positioned at a predetermined distance from the inner wall surface of the predetermined mixing portion 300. The space formed by the predetermined distance may be a second fluid suction passage 360 through which the second fluid 20 flows into the mixing portion 300 and flows to be mixed with the first fluid 10. The second fluid intake passage 360 is connected to the first region 341 through which the second fluid 20 flows into the mixing portion 300 and is primarily mixed with the first fluid 10 by the venturi principle. Can be an euros.

The nozzle member 340 may be positioned in the first region 341 in a direction from the first region 341 to the second region 342 in order to induce a smooth flow when the fluid mixed in the first region 341 is moved to the second region 342. [ An inclined surface may be formed so as to narrow the channel gradually, and the inclined surface may be formed as a flat surface or a curved surface.

8 is a cross-sectional view of a nozzle member 340 to illustrate turbulent flow formation according to an embodiment of the present invention. The nozzle member 340 may be hollow to provide an interior space, with one hollow side adjacent the outlet (330 in FIG. 7) and the other side toward the first fluid guide (350 in FIG. 7). The nozzle member 340 forms a first region 341 and a second region 342 in a hollow interior where the first region 341 has a shape in which the cross-sectional area of the flow path is reduced in the flow direction of the mixed fluid May be formed to extend by a predetermined length. At this time, the inner surface of the first region 341 may be formed as a flat surface or a curved surface.

The second region 342 is a space formed inside the nozzle member 340 from the end of the first region 341 on the side of the discharge port 330 in FIG. 7 to the vicinity of the discharge port 330, A shape in which the cross-sectional area of the flow path in the flow direction of the fluid is reduced after the flow path is expanded by forming the flow path expanding step portion 345 at the point where the flow path extending portion 342 starts is extended by a predetermined length. At this time, the inner surface of the second region 342 may be formed as a flat surface or a curved surface.

The second region 342 may include the turbulent flow generating portion 342a according to the structure of the second region 342 described above. The turbulent flow generating portion 342a is formed adjacent to or in proximity to the flow path expanding step portion 345 whose diameter increases radially from the end of the first region 341 and the mixed fluid is discharged from the first region 341 2 region 342 and is discharged to the discharge port 330. [0051] As shown in FIG.

7) and the second fluid (20 in Fig. 7) mixed in the first region 341 by the turbulent flow generated in the turbulent flow generating portion 342a, The mixing effect of the first fluid (10 in FIG. 7) and the second fluid (20 in FIG. 7) of the cutting oil diluting device can be maximized by inducing mixing.

Specifically, in the first region 341, the first fluid (10 in Fig. 7) and the second fluid (20 in Fig. 7) are partially mixed and the cross-sectional area of the flow path is reduced, ).

When the first mixed fluid 10 and the second fluid 20 enter the second region 342, the flow path expands at a point where the radial diameter of the second region 342 increases, As the flow becomes unstable, a rotating current of the fluid, specifically, a return current, can be generated in the second region 342. Thus, turbulence or turbulence may occur in the turbulence generating portion 342a, which further enhances the mixing of the first fluid 10 and the second fluid 20. [

As described above, according to the embodiment of the present invention, the turbulent flow generating portion 342a for mixing the first fluid (10 in FIG. 7) and the second fluid (20 in FIG. 7) But it is needless to say that it can be formed in various shapes as long as it can generate a vortex. In the embodiment of the present invention, only the two regions described as the first region 341 and the second region 342 have been described. However, the present invention is not limited thereto and three or more regions may be formed, ) And the second fluid 20 can be further promoted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, . Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by equivalents to the appended claims, as well as the appended claims.

100: first fluid supply part
102: first conduit
110: Flow control device
111: first inlet plate
112: first inflow hole
113: second inlet plate
114: second inflow hole
115: opening and closing ball
116: elastic member
117:
118: Discharge ball
130: Timer valve
140: Timer
141: Timer connection
160: first fluid supply valve
200: second fluid supply part
202: second channel
210: Backflow prevention valve
220: Concentration control valve
300: mixing part
310: first inlet
320: second inlet
330: Outlet
340: nozzle member
341: First area
342:
342a:
345: Euro expanding step jaw
350: first fluid guide tube
351:
360: second fluid suction channel
400: discharge pipe
1: a first fluid storage portion
2: the second fluid reservoir
10: First fluid
20: second fluid

Claims (11)

Wherein a space is formed in the space and a first inlet through which the first fluid can flow, a second inlet through which the second fluid can flow, and an outlet through which the first fluid and the second fluid are discharged, part;
A first fluid supply part having one side connected to the first inlet formed in the mixing part and the other side connected to the first fluid storage part;
A second fluid supply part having one side connected to the second inlet formed in the mixing part and the other side connected to the second fluid storage part;
A flow rate adjusting device installed in the first fluid supply part and capable of opening and closing the flow path according to a predetermined fluid pressure; And
And a discharge pipe connected to the discharge port formed in the mixing section, wherein the first fluid and the second fluid are mixed and discharged,
The first fluid supply part including a first conduit for forming a conduit and a timer valve installed on the first conduit for opening and closing the conduit; A timer electrically connected to the timer valve to transmit an open / close signal; And a first fluid supply valve installed on the first conduit and capable of manually opening and closing the flow path,
The second fluid supply unit includes a second flow path forming a flow path, and a reverse flow prevention valve installed on the second flow path so as to flow only in one direction. And a concentration control valve disposed on the second conduit and capable of adjusting an inner diameter of a flow path formed by the second conduit,
Wherein the flow rate regulating device includes a first inflow plate in which a first inflow hole is formed and a second inflow plate in which four second inflow holes are formed in a radial direction and the flow rate of the first fluid is changed according to the diameter of the second inflow hole Lt; / RTI >
Wherein the mixing portion further comprises a nozzle member formed with three or more regions including a first region and a second region that are formed in a hollow shape on the discharge port side,
Wherein the first region includes a curved surface in which the cross-sectional area of the flow path is reduced in the flow direction of the fluid to be mixed and at least a part of the inner surface is curved inward of the first region, and the first fluid and the second fluid are mixed Lt; / RTI >
The second region may include a flow path expanding step portion that is formed so as to be perpendicular to the central axis of the second region so that the flow path is rapidly expanded at the end of the first region and a turbulent flow generating portion formed in the outer circumferential side space of the flow path expanding step portion. And a portion of the inner surface of the second region includes a curved surface curved inward of the second region to generate a vortex,
Wherein mixing of the first fluid and the second fluid is promoted by the three or more regions.
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