KR101898139B1 - Fluid Jet Apparatus Having Jet Unit Having Spread-Preventing Flowpath - Google Patents

Fluid Jet Apparatus Having Jet Unit Having Spread-Preventing Flowpath Download PDF

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Publication number
KR101898139B1
KR101898139B1 KR1020160033269A KR20160033269A KR101898139B1 KR 101898139 B1 KR101898139 B1 KR 101898139B1 KR 1020160033269 A KR1020160033269 A KR 1020160033269A KR 20160033269 A KR20160033269 A KR 20160033269A KR 101898139 B1 KR101898139 B1 KR 101898139B1
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KR
South Korea
Prior art keywords
injection
flow path
fluid
cryogenic fluid
inner tube
Prior art date
Application number
KR1020160033269A
Other languages
Korean (ko)
Other versions
KR20170109713A (en
Inventor
박경희
이석우
김태곤
김효영
이동윤
Original Assignee
한국생산기술연구원
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Priority to KR1020160033269A priority Critical patent/KR101898139B1/en
Publication of KR20170109713A publication Critical patent/KR20170109713A/en
Application granted granted Critical
Publication of KR101898139B1 publication Critical patent/KR101898139B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0003—Arrangements for preventing undesired thermal effects on tools or parts of the machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1038—Arrangements for cooling or lubricating tools or work using cutting liquids with special characteristics, e.g. flow rate, quality
    • B23Q11/1053—Arrangements for cooling or lubricating tools or work using cutting liquids with special characteristics, e.g. flow rate, quality using the cutting liquid at specially selected temperatures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/10—Arrangements for cooling or lubricating tools or work
    • B23Q11/1076—Arrangements for cooling or lubricating tools or work with a cutting liquid nozzle specially adaptable to different kinds of machining operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine tools
    • B23Q11/146—Methods or arrangements for maintaining a constant temperature in parts of machine tools by controlling the temperature of a cutting liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits

Abstract

The fluid injection device including the injection unit including the diffusion preventing flow path according to the present invention is characterized in that the fluid injection device includes an accommodation tank in which a cryogenic fluid is stored and an injection path in which a cryogenic fluid accommodated in the accommodation tank is injected, And a spraying unit for spraying cryogenic fluid to a region to be processed by the cutting tool, including a diffusion preventing flow path for spraying air to prevent diffusion of cryogenic fluid sprayed through the flow path.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fluid ejecting apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid ejecting apparatus for ejecting fluid, and more particularly, to a fluid ejecting apparatus capable of preventing the diffusion of a cryogenic fluid ejected by a diffusion preventing channel.

Generally, in the process of processing an object such as a metal, high-temperature heat is generated, which causes a risk of deforming and damaging the workpiece. Therefore, in order to prevent this, when performing the object machining operation, cutting oil or the like for cooling is injected into the machining area.

However, since the above-described fluid injection is performed at a high pressure, the phenomenon that the jetting range is diffused more than the actual predicted range frequently occurs, which causes a drastic decrease in the processing quality.

Therefore, in the related art, there have been many cases where a separate member for preventing the diffusion of the fluid is mounted on the injection target. However, this is not only cumbersome but also causes the worker to be injured because the subsequently mounted member is cooled by the cutting oil .

Therefore, a method for solving such problems is required.

SUMMARY OF THE INVENTION The present invention is conceived to solve the problems of the prior art described above and has as its object to provide a fluid ejection device that can effectively prevent the diffusion of the cooling fluid during the ejection of the cooling fluid.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a fluid injection device including an injection unit including a diffusion preventing channel of the present invention. The fluid injection device includes an accommodation tank in which a cryogenic fluid is stored, a jet channel in which a cryogenic fluid accommodated in the accommodation tank is injected, And a spraying unit for injecting cryogenic fluid to a region to be processed by the cutting tool, the spraying unit including a diffusion preventing flow path for spraying air to prevent diffusion of cryogenic fluid sprayed through the spray path adjacent to the flow path.

The diffusion prevention flow path may be formed to surround the circumference of the injection path.

The injection unit may include an inner tube having the injection path formed therein and an outer tube that surrounds the inner tube and forms the diffusion preventing path between the inner tube and the inner tube.

And the outer tube may include an extension extending forwardly from the length of the inner tube.

Further, a spiral protrusion may be formed on the inner surface of the outer tube so as to spray air in the spiral direction.

And a second elongated flow path that is detachably attached to an end of the injection unit and extends through the first elongated flow path extending the injection flow path and the second elongated flow path extending the diffusion prevention flow path.

In addition, the first elongated passage may be formed in such a shape that the cross-sectional area gradually increases from the rear to the front.

According to an aspect of the present invention, there is provided a fluid ejecting apparatus including an ejecting unit including a diffusion preventing channel.

First, there is an advantage that the diffusion of the cryogenic fluid can be effectively prevented by the air pressure injected from the diffusion preventing flow path.

Second, the cryogenic fluid can be precisely sprayed in a desired range, which can greatly improve the quality of work.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a view illustrating a fluid injection device according to a first embodiment of the present invention;
2 is a view illustrating spraying of a cryogenic fluid to a cutting tool side through an injection unit of the fluid injection device according to the first embodiment of the present invention;
FIGS. 3 and 4 are views showing a state of the injection unit in the fluid injection device according to the first embodiment of the present invention; FIG.
5 is a view showing a state of the injection unit in the fluid injection device according to the second embodiment of the present invention;
FIG. 6 and FIG. 7 are views showing a state of the ejection unit in the fluid ejection apparatus according to the third embodiment of the present invention; FIG. And
8 and 9 are views showing a state of the injection unit in the fluid injection device according to the fourth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

1 is a view showing a fluid injecting apparatus according to a first embodiment of the present invention.

1, the fluid ejection apparatus according to the present invention includes a first containing tank 10, a second containing tank 40, a jetting hose 50 and a jetting unit 100. [ In particular, in the case of this embodiment, the mixing unit 30 and the cooling unit 20 may be further included.

A predetermined fluid is received in the first storage tank 10 and the second storage tank 40, respectively. In the case of this embodiment, the first cryogenic fluid is received in the first containing tank and the second cryogenic fluid is received in the second containing tank.

The cooling portion 20 is a component that allows the first cryogenic fluid and the second cryogenic fluid to be cooled to a cryogenic temperature. The mixing portion 30 mixes the first cryogenic fluid and the second cryogenic fluid Lt; / RTI >

The mixed first cryogenic fluid and the second cryogenic fluid thereby flow through the injection hose 50 and are processed by the cutting tool M through the injection unit 100 as shown in Figure 2 And can be sprayed on the machining area T. [

Hereinafter, the injection unit 100 will be described in detail.

3 and 4 are views showing a state of the injection unit 100 in the fluid injection device according to the first embodiment of the present invention.

3 and 4, the injection unit 100 according to the first embodiment of the present invention includes an injection flow path 112 and a diffusion prevention flow path 122. As shown in FIG.

The diffusion preventing flow path 122 prevents the diffusion of the cryogenic fluid that is injected through the injection path 112 adjacent to the injection path 112, And the like.

That is, the diffusion preventing flow path 122 prevents the cryogenic fluid ejected from the injection path 112 from being diffused in the lateral direction through the high pressure air to be injected.

Particularly, in the present embodiment, the injection unit 100 includes an inner tube 110 having the injection path 112 formed therein, and an inner tube 110 surrounding the inner tube 110, And an outer tube 120 that forms the diffusion prevention flow path 122.

Accordingly, the diffusion preventing flow path 122 is formed to surround the injection path 112, thereby effectively preventing diffusion of the cryogenic fluid.

As described above, the present invention can effectively prevent the diffusion of the cryogenic fluid due to the air pressure injected from the diffusion preventing flow path 122, and can precisely inject the cryogenic fluid in a desired range, .

Hereinafter, other embodiments of the present invention will be described.

5 is a view showing a state of the injection unit 100 in the fluid injection device according to the second embodiment of the present invention.

The second embodiment of the present invention shown in Fig. 5 has the same overall components as those of the above-described first embodiment, and the roles are the same. However, in this embodiment, the outer tube 120 further includes an extension 123 extending a predetermined length 1 forward of the length of the inner tube 110.

Since the extended portion 123 is formed in this way, the air injected through the diffusion preventing passage 122 can be guided along the outer tube 120 by a longer distance than the cryogenic fluid injected through the injection path 112 And can more effectively prevent the diffusion of the cryogenic fluid.

In this case, even if the pressure of the air injected through the diffusion preventing passage 122 is somewhat low, a sufficient diffusion preventing effect can be obtained.

6 and 7 are views showing the injection unit 100 in the fluid injection device according to the third embodiment of the present invention.

The third embodiment of the present invention shown in Figs. 6 and 7 also has the same components as those of the above-described embodiments. However, in the case of the present embodiment, a spiral protrusion 124 is formed on the inner surface of the outer tube 120, so that the air is sprayed in the spiral direction.

In this case, since the air flows along the depression formed between the protrusions 124 and is spirally blown, the diffusion of the cryogenic fluid can be prevented more effectively.

8 and 9 are views showing the injection unit 100 in the fluid injection device according to the fourth embodiment of the present invention.

The third embodiment of the present invention shown in Figs. 8 and 9 also has substantially the same components as those of the above-described embodiments. However, the present embodiment is different in that the extension member 130 is further provided.

The extension member 130 is detachably provided at an end of the injection unit 100 and includes a first extension path 132a extending the injection path 112 and a second extension path 132b extending from the diffusion prevention path 122 And a second extension passage 132b. That is, the extension member 130 has a shape including an extended inner pipe 131a extending the inner pipe 110 and an extended outer pipe 131b extending the outer pipe 120.

At this time, the extension member 130 has various forms of the first extension passage 132a and the second extension passage 132b, so that various effects can be obtained.

In the present embodiment, the extension pipe 131a is formed to be inclined by a predetermined angle?, And the first extension passage 132a is formed in such a shape that the cross-sectional area thereof gradually increases as it goes from the rear to the front, The flow path 132b is formed in such a shape that the sectional area gradually decreases from the rear toward the front. The extension member 130 may be used when the injection range is to be widened.

That is, in this embodiment, the injection range can be controlled in various ways according to the inner shape of the extension member 130, and various effects can be obtained by combining the various extension members 130 with the injection unit 100.

It will be apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is obvious to them. Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

100: injection unit 110: inner pipe
112: jet flow path 120: appearance
122: diffusion preventing channel 123: extension part
124: protrusion 130: extension member
131a: extension inner tube 131b: extension outer appearance
132a: first extension passage 132b: second extension passage

Claims (7)

An accommodation tank in which a cryogenic fluid is stored;
And a diffusion preventing flow path formed to surround the circumference of the injection path and spraying air to prevent diffusion of the cryogenic fluid sprayed through the injection path, A spray unit for spraying a cryogenic fluid to an area to be processed by the cutting tool; And
An outer diameter of which is the same as the outer diameter of the injection unit and which is detachably provided at an end of the injection unit and which includes a first extension flow path extending the injection flow path and a second extension flow path extending the diffusion prevention flow path absence;
/ RTI >
Wherein the injection unit comprises:
An inner tube having the injection passage formed therein; And
An outer tube which is formed to surround the inner tube and forms the diffusion preventing channel between the outer tube and the inner tube;
/ RTI >
And a protrusion formed on the inner surface of the outer tube so as to be spaced apart from the outer surface of the inner tube so that air flowing between the outer tube and the inner tube is sprayed in a spiral direction as the depression is formed between the adjacent protrusions Lt; / RTI &
Wherein the first elongate flow passage is formed such that the cross-sectional area gradually increases from the rear to the front, and the second elongate flow passage is formed such that the cross-sectional area gradually decreases from the rear to the front. delete delete The method according to claim 1,
Wherein the outer tube includes an extension extending longer than a length of the inner tube. delete delete delete
KR1020160033269A 2016-03-21 2016-03-21 Fluid Jet Apparatus Having Jet Unit Having Spread-Preventing Flowpath KR101898139B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160033269A KR101898139B1 (en) 2016-03-21 2016-03-21 Fluid Jet Apparatus Having Jet Unit Having Spread-Preventing Flowpath

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Application Number Priority Date Filing Date Title
KR1020160033269A KR101898139B1 (en) 2016-03-21 2016-03-21 Fluid Jet Apparatus Having Jet Unit Having Spread-Preventing Flowpath

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KR101898139B1 true KR101898139B1 (en) 2018-10-30

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000189852A (en) * 1998-12-25 2000-07-11 Denki Kagaku Kogyo Kk Spraying nozzle and spraying method using the same
JP2011194304A (en) * 2010-03-18 2011-10-06 Olympus Corp Adhesive coating apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000189852A (en) * 1998-12-25 2000-07-11 Denki Kagaku Kogyo Kk Spraying nozzle and spraying method using the same
JP2011194304A (en) * 2010-03-18 2011-10-06 Olympus Corp Adhesive coating apparatus

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KR20170109713A (en) 2017-10-10

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