KR20160031477A

KR20160031477A - No-power spray apparatus

Info

Publication number: KR20160031477A
Application number: KR1020160025242A
Authority: KR
Inventors: 김병준
Original assignee: (주)세양메카트로닉스
Priority date: 2016-03-02
Filing date: 2016-03-02
Publication date: 2016-03-22
Also published as: KR101639398B1

Abstract

The present invention relates to a non-powered spray apparatus. The non-powered spray apparatus reduces work time and extends the service life of a tool during a cutting process, which is a generic term for drilling, milling, cutting, tapping, etc., by simultaneously injecting cutting oil and cold air for cooling the surface of a material to be processed and protecting a tip, and does not require an additional power source as the spray of the cutting oil and cold air is performed by a free-fall. The non-powered spray apparatus comprises: a cutting oil storage container; a venturi-type cold air supply unit which has an injection port, a cold and hot air separating room connected to the injection port, and a cold air supply room connected to the bottom of the cold and hot air separating room; a moving pipe which is connected to the cutting oil storage container and the bottom of the cold air supply room; and a spray nozzle which is connected to the bottom of the moving pipe.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a NO-POWER SPRAY APPARATUS,

The present invention relates to a method and apparatus for simultaneously spraying coolant and cool air for cooling and tip protection of a workpiece surface to provide a spraying operation that reduces work time and prolongs tool life when cutting (drilling, milling, cutting, &Lt; / RTI >

And more particularly, to a non-power-source spraying apparatus which is formed by free fall of coolant and cool air, and which does not require any additional power.

During the cutting process, frictional heat is generated in the cutting working area due to the friction between the tool (tip) and the working surface.

Such frictional heat softens the workpiece to cause the work surface to become non-smooth or to heat and soften the tool, resulting in a reduction in tool life due to an increase in wear.

Conventionally, in order to solve the problem of reduction in cutting quality and tool life due to such frictional heat, cutting oil is supplied to the machined surface to reduce frictional heat generation and to cool the generated frictional heat.

However, cutting oil is not preferable from the environmental point of view, and in particular, a kind such as methanol used in mobile phone liquid crystal processing is harmful to human body, and it is necessary to suppress or minimize the use of cutting oil.

As a conventional technique for minimizing the use of the cutting oil, there is a cryogenic compressed air injection device (hereinafter referred to as " cryogenic compressed air injection device ") And the use of cutting oil is replaced.

However, in the prior art, fans, heat exchangers and the like are used to cool the air, and power must be supplied to cool the air and to transfer the cooled air.

Therefore, since it is difficult to apply the conventional technology to an explosion-proof area or a chemical plant in an environment where electricity can not be used or in which electric use must be minimized, the necessity of a coolant and a cooler spraying device Come on.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

And it is an object of the present invention to provide a non-power-source spray device which is formed by free falling of cutting oil and cool air and does not require any additional power.

Also, it is an object of the present invention to prevent the movement of cutting oil from being frozen (including a decrease in flow rate due to some freezing) due to cold air during the process of moving the cutting oil through the moving pipe by separately applying the cutting oil moving pipe and the cold moving pipe.

It is another object of the present invention to enable mixing of coolant and cool air directly after spraying through a unique spray nozzle structure.

Further, it is an object of the present invention to provide injection efficiency and durability through a unique injection nozzle structure.

The present invention having the above object

A venturi cool air supply means including a coolant supply reservoir connected to the lower side of the coolant supply chamber and a coolant supply chamber connected to the lower side of the coolant re-chamber; And a spray nozzle connected to a lower side of the moving pipe, wherein the coolant and cool air are injected into the machine table without any separate power source.

The moving tube is divided into a cutting oil moving tube connected to the lower portion of the cutting oil storage container and a cold air moving tube connected to the cold air supply chamber. The spray nozzle includes a first insertion portion into which the cold air movement tube is inserted, And a second insert part through which the cutting oil moving pipe is inserted.

The second insertion portion of the injection nozzle includes a bent portion, and the second injection hole through which the coolant is injected forms an angle of 30 degrees with respect to the first injection hole through which cool air is injected.

The distance between the center of the first insertion portion and the center of the second insertion portion may be a radius of the first insertion portion and a radius of the second insertion portion, The sum of the radiuses of the first and second inserts is smaller than the sum of the radii of the first and second inserts.

According to the present invention,

It is possible to apply to an environment in which electricity can not be used or electric use must be minimized because no separate power is required through the injection of coolant and coolant by free fall.

In addition, it is possible to prevent the movement of the cutting oil from being restricted due to freezing (including a decrease in the flow velocity due to some freezing) by the cold air during the movement of the cutting oil through the moving pipe.

In addition, since the mixing of the coolant and the coolant is performed immediately after the injection, the injection accuracy of the coolant and the coolant to be injected can be improved.

And further, sufficient supply of cutting oil and fine spraying are possible.

1 is a use state diagram of the present invention.
2 is a structural view (cross-sectional view) of the present invention.
3 is a detailed view of the injection nozzle;
4 is a first modification of the present invention;
5 is a second modification of the present invention.

While the present invention has been described in connection with certain exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

The present invention provides a reduction in working time and an extension of the tool life when cutting (drilling, milling, cutting, cutting, tapping, etc.) is performed by simultaneously spraying coolant and cool air for cooling the workpiece surface and protecting the tip, And more particularly, to a non-power-source spraying device in which a coolant and a coolant are sprayed by a free fall so that a separate power is not required.

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

1 is a diagram showing a use state of the present invention.

1, the present injection apparatus S includes a storage container 1, a cold air supply means 2, a moving pipe 3, and an injection nozzle 4.

The main injection apparatus S having the above structure is attached to one side of a tool table provided with a tool table below. The tool table is limited to a tool provided at the bottom, Free fall feature.

Fig. 2 is a configuration diagram (cross-sectional view) showing each configuration of the present invention in detail.

Referring to FIG. 2, the structure of the spray device S will be described in detail. First, as shown in FIG. 2, the storage container 1 is disposed at the top of the spray device S.

Further, as shown in the figure, the storage container 1 has a discharge valve 11 and a discharge port 13 at a lower portion thereof.

Accordingly, the cutting oil is received and stored in the storage container 1, and the discharge port 13 is opened according to the operation of the discharge valve 11 to discharge the cutting oil to the moving pipe 3.

Here, the point that the storage container 1 is provided at the upper part of the movement and the upper part is to spray the cutting oil by the free fall of the spray device S.

2, the cool air supply means 2 includes a coolant supply chamber 23 connected to the inlet 21 for injecting air, a coolant and air diffusion chamber 23 connected to the inlet 21, The cold air supply means 2 is a venturi type and is characterized in that cold air and warm air are separated and supplied without a separate power source.

The specific constitution and principle of the cold air supply means 2 are already well known and can be confirmed by the applicant's prior art No. 10-1505574 (Mar. 18, 2015) [local cooling apparatus] , The detailed description will be omitted and only the brief function will be referred to.

The cool air supply chamber 25 is configured to separate the compressed air into cool air and warm air, and the cool air supply chamber 25 is connected to the cool air supply chamber 25, Is configured to discharge the separated cool air to the moving tube (3). In addition, the warm air separated from the cold / hot decomposition chamber (23) is discharged to the outside with appropriate discharge means.

Next, as shown in FIG. 2, the moving pipe 3 is connected to the lower side of the coolant supply storage chamber 1 and the cool air supply chamber 25, and has a passage for allowing the coolant and cool air to move to the injection nozzle 4 to provide.

Next, as shown in Fig. 2, the injection nozzle 4 is connected to the lower side of the moving pipe 3, and simultaneously discharges the coolant and the coolant moved through the moving pipe 3. As shown in Fig.

The present injection apparatus S having such configuration and characteristics can simultaneously cool the cool air and the coolant to the work table to reduce the friction between the tool tip and the work surface and reduce the heat of friction generated thereby to provide a smooth machined surface In addition, the processing efficiency can be increased.

Further, by reducing the friction and frictional heat between the tool tip and the machining surface, the present invention can reduce the use of cutting oil which also functions as a machining surface cooling function. Particularly, a cutting fluid, such as methanol, which is not suitable for the human body, is used for polishing the liquid crystal of a mobile phone. The use of the present invention has an advantage of minimizing the use of methanol. Of course, the savings in cutting costs are obvious.

In addition, as mentioned above, since the cutting oil and the cold air are sprayed on the work table without any separate power source, it is possible to use an environment such as an explosion-proof area or a chemical factory where electricity can not be used, Saving business sites, low-power-driven business sites, etc.).

Fig. 3 is a detailed view showing the specific structure of the injection nozzle 4, which is a constitution of the present invention.

Additional features of the present invention will now be described with reference to Figures 2 and 3 below.

In another aspect of the present invention, the spray device (S) is characterized in that the moving pipe (3) is divided into a cutting oil moving pipe (32) and a cold air moving pipe (31).

2 and 3, the moving pipe 3 is divided into a cutting oil moving pipe 32 connected to the lower portion of the cutting oil storage container 1 and a cold air moving pipe 31 connected to the cold air supply chamber 25. As shown in FIGS. The injection nozzle 4 includes a first insertion portion 41 into which the cold air moving pipe 31 is inserted and a second insertion portion formed in the side of the first insertion portion 41 and into which the cutting oil moving pipe 32 is inserted 42).

With this feature, since the cutting oil and the cold air are not mixed with each other but are independently moved to the injection nozzle 4 and mixed with each other instantaneously through the injection nozzle 4, Clogging phenomenon can be prevented.

The cutting oil is frozen in the cutting oil moving pipe 32 in view of the fact that the diameter of the cutting oil moving pipe 32 is not so large especially for the proper supply of the cutting oil and the compact construction of the main injection device S, The moving tube 32 can be clogged, and the above-described characteristic provides an effect that this problem can be solved.

Further, as described above, since the moving pipe 3 is divided into the cutting oil moving pipe 32 and the cold air moving pipe 31, the jetting nozzle 4 is provided with two jetting ports (the first jetting port 51 and the second jetting port 51) (52)). Accordingly, the present invention proposes a unique structure for mixing cool air and cutting oil immediately after jetting.

3, the injection device S includes a second insertion portion 42 of the injection nozzle 4 including a bending portion 421 and a second injection hole 52 through which the cutting oil is injected And the cool air is formed at an angle of 30 degrees with respect to the first jetting port 51 through which cool air is jetted.

According to the above structure, the cool air is injected into the vertical lower portion through the first injection port 51. In addition, the coolant is also sprayed downwards, but at an angle of 30 [deg.] From the side of the vertically injected cool air. Accordingly, the coolant is mixed with the coolant immediately after the spraying and the coolant is cooled, and the coolant is also mixed with the cool air and injected into the vertical lower part by the jetting force of the cool air.

The reason why the angle formed by the first jetting port 51 and the second jetting port 52 is limited to 30 것은 is that if the angle is less than 30 문제점, the jetting of the coolant may not be properly sprayed due to free fall And the spraying force of the cutting oil affects the spraying force of the cool air, so that the cool air can not be injected properly into the vertical lower part.

Or when the angle exceeds 30 ㅀ, the mixing time of the cutting oil and the cool air is delayed, the mixing is not performed immediately after the spraying, and the separation distance between the work table and the spray nozzle 4 is sufficiently secured . Such a restriction of the separation distance causes the accuracy of the coolant and the cool air to be sprayed on the machining area to be lowered, which causes a decrease in the working efficiency.

3, the injection apparatus S includes a first insertion portion 41 and a second insertion portion 42 formed in a circular hole, and the first insertion portion 41 And the second insertion portion 42 are partially overlapped with each other.

The distance d0 between the center of the first insertion portion 41 and the center of the second insertion portion 42 is equal to the distance d0 between the center of the first insertion portion 41 and the center of the second insertion portion 42 (r1 + r2) of the first insertion portion (r1) and the radius (r2) of the second insertion portion (42).

With the above feature, it is possible to provide a sufficient supply of cutting oil in a trade-off relationship and a size limitation and durability issue of the spray nozzle 4 while separating the coolant transfer pipe 32 and the cool- It can be solved at once.

More specifically, in order to solve the problem of supply of the cutting oil sufficiently, the cutting oil moving pipe 32 must have a sufficient diameter. To this end, the second insert portion 42 into which the cutting oil moving pipe 32 is inserted has a sufficiently large diameter Should be secured.

In addition, in view of size limitation and durability issues of the injection nozzle 4, it is preferable that the size of the injection nozzle 4 is minimized in order to finely and precisely spray the cool air and the cutting oil to the processing position. In addition, It is preferable that the wall surface of the injection nozzle 4 is made as thick as possible.

The present invention can sufficiently secure the diameter of the second inserting portion 42 through the partial overlapping property of the first inserting portion 41 and the second inserting portion 42 for solving the two issues at once, The wall surface of the nozzle 4 is sufficiently thickened, and the size of the injection nozzle 4 can be made sufficiently small.

3, the injection apparatus S is configured such that the injection nozzle 4 is disposed at a boundary between the first insertion section 41 and the second insertion section 42 And the diameter d41 of the first insertion portion 41 is larger than the diameter d51 of the first injection port 51. [

The diameter d51 of the first insertion portion 41 and the first injection hole 51 through the step 411 facilitates the formation of the bending portion 421 of the second insertion portion 42, And further allows the chilled air to be injected to have stronger jetting power at the first jetting port (51).

Therefore, the structure of the first insertion portion 41 and the first injection opening 51 provides the effect of maximizing the cold air injection efficiency.

4 is a view showing a first modification of the present invention.

In the first modified example of FIG. 4, the cool air separated from the cold / hot decomposition chamber 23 is blown down and is used to warm the coolant without discharging the separated warm air to the outside. Will be referred to as cold / hot-air supplying means 20.

As shown in FIG. 4, the present invention according to the first modification further includes a warm supply chamber 27 in which the cooler supply means 20 is connected to the upper portion of the cold / hot decomposition chamber 23.

The present invention according to the first modified example further comprises a heating pipe 6 connected to the warm-gas supply chamber 27 and surrounding the outer surface of the coolant storage container 1. [

The present invention according to the first modified example of FIG. 4 having the above structure and configuration is characterized in that the temperature at the site where the present spraying apparatus S is provided is determined by an environmental factor (winter season) or a special factor (cooling apparatus) The present invention provides a 'coolant keeping effect' that prevents the coolant from being cooled below a predetermined temperature by heating the coolant stored in the storage container 1 by utilizing warmth which is a by-product of cold air supply in a situation where the temperature of the coolant is low .

4, the present invention is characterized in that a heat insulating member 7 surrounding the coolant storage container 1 and the heating pipe 6 is provided outside the heating pipe 6 in order to enhance the ' .

Such a heat insulating member 7 can be manufactured in a shape corresponding to the shape of the storage container 1, and a material excellent in heat insulating effect can be selected.

In addition, it is preferable that the heat insulating member 7 is provided at least in the form of enclosing the side surface and the bottom surface of the storage container 1, and more preferably, the upper surface of the storage container 1, that is, the lid part.

5 is a diagram showing a second modification of the present invention.

As shown in FIG. 5, the present invention according to the second modification is characterized in that the heating tube 6 is a helical heating tube 60 wound around the outer surface of the coolant storage container 1.

The spiral heat pipe 60 can heat the heat exchanged by the warmth moving through the heating pipe 6 uniformly throughout the storage container 1 to improve the efficiency according to the ' Increase.

In the first modification and the second modification described above, in the process of utilizing the cold air separated through the cold / hot-air supplying means 20 for cutting, it is not possible to directly discharge warmth, which is a by- It is possible to reduce cost due to the provision of additional devices for treating waste heat as well as cost advantages of omitting separate cutting oil keeping means.

Also, as shown in Fig. 1, it is also possible to provide a heat insulating material 33 that surrounds the outer surface of the moving pipe 3 for the purpose of keeping the moving pipe 3 warm. In the first and second modified examples, The provision of the heat insulator 33 or the like allows the main injection apparatus S to omit the supply of power for providing a separate warming means even in the extreme field conditions Thereby making it possible to maintain the basic concept of the present invention.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

S; This injection device
1: Storage container
2: cool air supply means 21: inlet
23: Cold tempur Risil 25: Cold supply room
3: moving pipe 31: cold moving pipe
32: Cutting oil flow pipe
4: injection nozzle 41: first insertion portion
42: second insertion portion 421: bent portion
51: first jetting port 52: second jetting port
20: Cold / hot supply means 6: Heating tube
7:

Claims

A non-powered sprayer attached to one side of a tool stand provided with a tool table at a lower portion thereof,
A coolant storage container disposed at an upper portion thereof;
A venturi type cold air supply means including an inlet for injecting air, a cold air diffuser chamber connected to the inlet, and a cold air supply chamber connected to the lower portion of the cold air diffuser;
A moving pipe connected to the lower side of the coolant supply chamber and the coolant storage container; And
A spray nozzle connected to a lower side of the moving pipe;
, &Lt; / RTI >
Wherein the coolant and the coolant are injected into the work table without any separate power source.

The method according to claim 1,
Wherein the moving pipe is divided into a cutting oil moving pipe connected to the lower portion of the cutting oil storage container and a cold moving pipe connected to the cold supply chamber,
Wherein the injection nozzle includes a first insertion portion into which the cool air movement tube is inserted and a second insertion portion formed in a side of the first insertion portion and into which the cutting oil movement tube is inserted.

The method of claim 2,
Wherein the second insertion portion of the injection nozzle includes a bent portion,
Wherein the second injection port through which the coolant is injected forms an angle of 30 degrees with respect to the first injection port through which cool air is injected.

The method of claim 2,
Wherein the first insertion portion and the second insertion portion are circular holes,
[The distance between the center of the first insertion portion and the center of the second insertion portion] is smaller than the sum of the radius of the first insertion portion and the radius of the second insertion portion,
Wherein the first insertion portion and the second insertion portion partially overlap each other.