KR20150017248A - Device for removal of media and method the same - Google Patents

Abstract

The present invention relates to a device for removing media and a method thereof. The device includes a mixture chamber; a gas supply unit which supplies a gas for purging the mixture chamber; a liquid supply unit which connects to the mixture chamber and injects a cleaning solution in the mixture chamber; an exhaust unit which is installed in lower end of the mixture chamber and discharges liquid and gas; and an injection unit connected to the exhaust unit and removing media remaining inside a metal container which is abrasive flow machining processed by injecting the fluid. According to the present invention, the problem of a conventional media removing method that generates scratches due to a vortex phenomenon can be solved by injecting the cleaning solution and nitrogen in a proper pressure when removing the media from the mirror-finished surface processed by an abrasive flow machine, mirror-finished polishing state can be maintained by blocking air and water in media removal process, additional polishing processes are unnecessary, process efficiency is improved, and manufacturing costs are reduced.

Description

[0001] The present invention relates to a device for removing media,

The present invention relates to an apparatus and method for removing media, and more particularly, to an apparatus and a method for removing media remaining on the inner surface of a mirror-polished container using a particle flow processor.

Particle flow machining has been applied to inner diameter grinding of containers with geometric shapes that are difficult to machine or chemically polish, engine injectors, nozzles, molds, high pressure gas sensing, and advanced die casting modules.

Generally, after the particle flow machining, compressor air is blown away to remove the media, which in turn contacts the media to form a vortex to provide a secondary scratch cause on the finished mirror. In addition, the water and high-pressure water contained in the compressor air oxidizes the surfaces of aluminum, copper, gold cup, beryllium copper, titanium, tantalum, niobium and molybdenum metal.

Media is a mixture of viscoelastic polymer and abrasive particles and is a substance used in the inner diameter polishing of a geometrically shaped container which is difficult to machine or mechanically polish.

The chemical method can be applied to remove the scratches and surface oxide layer generated in the blowing process. However, there is a limit to remove the scratches generated in the second step. When the chemical process is added, such surface material changes and productivity decrease .

Korean Registered Utility Model No. 20-0442736

SUMMARY OF THE INVENTION An object of the present invention is to provide a device for preventing a scratch due to a swirling phenomenon by applying a uniform pressure or a lower pressure at the time of media removal to a mirror container processed by a particle flow processor.

It is still another object of the present invention to provide an apparatus capable of maintaining the polished state of the mirror by intercepting surrounding oxygen and moisture during the media removal process.

The present invention relates to a mixing chamber, a gas supply unit for supplying a gas for purging the mixture chamber, a liquid supply unit connected to the mixture chamber and injecting a cleaning liquid into the mixture chamber, And a jetting part connected to the exhaust part and jetting the liquid and the gas to remove the remaining media on the inner surface of the metal container processed by the particle flow process.

Nitrogen can be injected into the mixture chamber by the gas supply unit, and the cleaning solvent can be selectively injected into the mixture chamber by the liquid supply unit.

The apparatus may further include a first valve disposed in the liquid supply unit to adjust an amount of liquid injected into the mixture chamber, and a second valve provided in the gas supply unit to adjust an amount of gas injected into the mixture chamber, .

A third valve provided between the exhaust part and the jet part and capable of adjusting the amount of liquid and gas discharged to the jet part; a second valve provided in the jet part to adjust the amount and intensity of jetting of liquid and gas; Fourth and fifth valves may be further included.

And the first valve to the five valves may be independently controlled.

Further, at both ends of the gas supply part, there is provided a connection part for supplying a gas to be introduced into the mixture chamber or an external gas to be introduced into the mixture chamber, and a gauge for measuring a gas to be supplied to the gas supply part, Can be confirmed.

In addition, a connection portion through which the liquid and the gas are introduced through the exhaust portion and the bellows is provided at one end of the injection portion, and an injection port through which liquid and gas can be injected to the outside is provided at the other end, And an injection gauge is provided to measure the amount of liquid to be injected.

And a frame installed below the mixture chamber and supporting the mixture chamber.

Injecting a cleaning liquid into the mixture chamber through a liquid supply portion connected to the mixture chamber; supplying gas into the mixture chamber through a gas supply portion; discharging liquid and gas through an exhaust portion formed at a lower end of the mixture chamber; And discharging the liquid and the gas through the jetting part connected to the exhaust part to remove the medium remaining on the inner surface of the metal container after the particle flow processing.

The method may further include connecting a container requiring removal of median to the injection port at the lower end of the media removal device before the liquid supply part supplies the liquid.

The method may further include the step of supplying gas to the gas supply unit and purging the gas supply unit, and adjusting the supply amount of the gas injected through the second valve at the gauge of the gas supply unit.

In addition, in the step of supplying the gas, the gas may be injected with nitrogen, and in the step of adjusting the gauge of the gas supplying part, the pressure when injecting the gas may be 3 to 5 kg / cm 2.

In addition, in the step of supplying the liquid, the liquid can selectively inject the cleaning solvent, and when the cleaning solvent is injected, a capacity of 10 to 60% of the mixture chamber is injected so that the mixture chamber can be maintained at the dead volume And the like.

Further, the first to fifth valves may be independently controlled.

The details of other embodiments are included in the detailed description and drawings.

According to the median removing apparatus and method according to the present invention, when the median is removed from the specular surface processed by the particle flow processor, the cleaning liquid and nitrogen are sprayed with a proper pressure to solve the problem of the conventional median removing method in which scratches are generated by the swirl phenomenon .

In addition, according to the apparatus and method for removing impurities according to the present invention, it is possible to maintain the internal polished state by intercepting air and moisture during the media removal process, and further polishing process is not necessary, Is expected to be saved.

FIG. 1 shows the differences between the prior art and the present invention when media are removed.
2 is a perspective view of the median removing apparatus according to the present embodiment.
3 is a cross-sectional view of the median eliminating apparatus according to the present embodiment.
4 is a partial cross-sectional view of a mixing chamber according to this embodiment.
FIG. 5 is a cross-sectional view of an additional frame-coupled media removal device according to this embodiment.
6 is a flowchart showing a media removal method according to the present embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus and method for removing media according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the terminology or words of the present disclosure should not be construed as limited to conventional or preliminary, and that the inventor may properly define the concept of a term to describe its invention in its best possible manner And should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a view showing a difference from the prior art in the case of removing media remaining on the inner surface of a metal container subjected to particle flow processing using the median removing device 100 according to the embodiment of the present invention.

As shown in FIG. 1-1, when the air particles are contained in the abrasive media, the media particles move freely inside the container, thereby scratching or impacting the inner wall surface, In this case, alcohol is added to the material to be injected into the cleaning so that the inner surface of the container is protected according to the liquid flow, and the residual mediare is removed. That is, since the alcohol is wrapped around the abrasive, the rough portion of the abrasive does not directly touch the inner surface of the vessel, so that the damage can be minimized and the residual abrasive is discharged to the outside of the vessel at a lower strength than in the prior art. Therefore, unlike the prior art, the present invention does not cause the swirling effect of the media on the inner surface of the container, so that a clean container can be obtained without causing scratches on the surface.

FIG. 2 is a schematic perspective view showing a media removal apparatus 100 according to an embodiment of the present invention, and FIG. 3 is a sectional view of the present invention.

As shown in FIGS. 2 and 3, a jetting unit 170 is disposed below the medicament removing apparatus 100 according to an embodiment of the present invention. And a container (not shown) that requires removal of the medium is connected to the injection port 175.

Media is a mixture of viscoelastic polymer and abrasive particles, which is used for polishing the inside diameter of a geometrically shaped container that is difficult to machine or chemically polish. In order to use the processed container, the media remaining in the container after polishing the container Should be removed. However, the type of the container is not limited to this, and various shapes of containers that have been processed according to the particle flow processor can be cleaned by the media removal device 100.

The median removing apparatus 100 according to the present embodiment includes a mixing chamber 110 for providing a space in which a mixture can be formed, a gas supply unit 120 provided in the mixing chamber 110 for supplying gas, a mixing chamber 110 A liquid supply part 130 provided at an upper end of the mixing chamber 110 for injecting liquid and an exhaust part 150 formed at the lower end of the mixture chamber 110 for discharging liquid and gas and a discharge part 150 formed at the lower end of the discharge part 150, (Not shown). Each component is spatially separated from each other, but through the adjustment of the valve it is possible to exchange the materials between each connection part.

4 is a cross-sectional view showing the lid part 111 and the body part 112 constituting the mixture chamber 110. As shown in Fig.

Hereinafter, this configuration of the median elimination apparatus will be described in more detail with reference to FIG. 2 to FIG.

The mixture chamber 110 serves to connect the gas supply unit 120, the liquid supply unit 130, and the exhaust unit 150, and is provided therebetween. According to FIG. 4, the mixture chamber 110 is largely composed of a lid 111 and a body 112.

The lid part 111 may be provided with a connection port through which the gas supply part 120 and the liquid supply part 130 are connected to allow each gas and liquid to be injected or discharged. In the case where each liquid or gas is injected into the body portion 112 and mixed or separated, the lid portion 111 may serve to seal the liquid to flow to the outside or to prevent the gas from being blown into the air.

The lid portion 111 and the body portion 112 may be formed to have a stepped portion at the joining portion or an O-ring may be disposed to seal the lid portion 111, thereby maintaining the pressure in the mixing chamber 110, It can serve to block the oxygen that is present.

The body portion 112 may be connected to the frame 190 (see FIG. 5) so that the whole device is fixed and can perform a cleaning function without shaking. Therefore, a connection end 115 having a fixing groove can be disposed outside the body portion 112 to be supported by the frame 190, thereby fixing the entire media removal device 100. The body part 112 is connected to the exhaust part 150 so that the liquid injected into the liquid supply part 130 flows to the exhaust part 150 under the body part 112 like the lid part 111, May be provided. The lower end of the body portion 112 forms a curved shape so that the substance introduced into the mixture chamber 110 is naturally guided downward.

The gas supply unit 120 is fixed to the upper lid 111 of the mixture chamber 110. Therefore, the gas is injected into the mixing chamber 110 to remove the mediating gas so that gas does not leak to the connection port of the lid.

Both ends of the gas supply part 120 are constituted by a gas supply part and a gas connection part which is a part connected to the mixture chamber 110 and the gas supply part 120 is capable of measuring an amount of gas entering the mixture chamber 110 A gas gauge 121 may be installed. In addition, a second valve 123, which can adjust the amount of gas to be injected through the gas gauge 121, may be provided.

The pressure of the gas supplied to the gas supply unit 120 is preferably 3 to 5 kg / cm 2, which can be adjusted through the second valve 123 while measuring the pressure of the gas passing through the gas gauge 121.

The gas supply unit 120 may be installed to adjust the length according to the situation where the gas is injected. As the kind of gas, an inert gas is used and preferably nitrogen can be used. This gas may be purged by placing it in the mixture chamber 110 to remove oxygen. In addition, these gases are moisture-free and can prevent other chemical reactions from taking place. Examples of the inert gas entering the gas supply unit 120 include helium, argon, neon, and nitrogen.

Specifically, in the case of such an inert gas injected into the gas supply part 120, since the reactivity is relatively low, it is difficult to cause a chemical reaction with other materials, so that the air can be blocked using the inert gas. In addition, it becomes possible to safely use the mixture in the mixing chamber 110 or in the container for removing the medium, without giving an opportunity for the combustible gas, the vapor, and the oxygen to contact and cause the chemical reaction.

The lid part 111 of the mixture chamber 110 is provided with a liquid supply part 130 capable of injecting liquid into the mixture chamber 110. At both ends of the liquid supply unit 130, the liquid supply unit 130 may include an injection port for injecting liquid and a liquid connection unit connectable to a connection port disposed in the lid part 111 of the mixture chamber 110. Further, it may include a first valve 131 capable of adjusting the amount of liquid.

The liquid supply part 130 serves to inject the cleaning liquid injected for the first time in the media removal step into the mixture chamber 110 and to control the amount of the cleaning liquid.

In the case of the liquid used here, an alcohol may be preferably used as a main component for removing residual media remaining in the interior of the processed vessel through the particle flow processor. In addition, the injected liquid can use various kinds of cleaning solvents that do not contain oxygen. The cleaning solvent refers to a liquid that does not contain dissolved oxygen in the solvent and can be sterilized, and includes, for example, alcohols such as toluene and glycol ethers.

Injecting a volume of 10 to 60% of the mixture chamber 110 to inject the liquid for cleaning into the mixture chamber 110 through the liquid supply part 130 so that the mixture chamber 110 can be maintained at a dead volume desirable. The dead volume is such that it is possible to have a space in which the fluid can stay in the mixture chamber 110, thereby allowing the liquid to flow down through the third valve 151.

In the conventional case, since the mediator is washed by spraying air into the container requiring the removal of the mediator, the mediator wipes the inside of the container and scratches. However, in the present invention, since the medium is removed by blowing the liquid into the container, The swirling effect does not occur depending on the nature of the fluid, so that the occurrence of scratches in the container may hardly occur. That is, since the liquid is sprayed and the container is washed, the interval between the inner surface of the container and the median is formed to prevent the remaining median from directly bumping into the inner surface of the container, so that the inner surface can be prevented from being damaged. At the same time, in the case of a cleaning solvent such as an alcohol, dissolved oxygen is not contained and almost no oxidation reaction occurs. As a result, it is possible to prevent the container from being oxidatively corroded and to maintain the clean surface continuously in the case of the cleaned container.

The exhaust unit 150 is provided below the mixture chamber 110 and serves as a connection passage through which the liquid or gas in the mixture chamber 110 can be discharged to the outside.

The exhaust portion 150 may be configured as an exhaust connection portion to be coupled with a connection port disposed below the body portion 112 of the mixture chamber 110 and may control the amount of liquid or gas that can flow out of the mixture chamber 110 A third valve 151 may be provided. The other part of the exhaust part 150 can be connected to the jet part 170 and can include the bellows 153 to prevent leakage of gas or liquid between them and to avoid severe deformation or force. have.

The jetting unit 170 may be connected to the exhaust unit 150 and may be configured to eject liquid to remove media remaining on the inner surface of the metal container after particle flow processing.

The jetting section 170 includes fourth and fifth valves 171 and 173 so as to be connected to the exhaust section 150 through the bellows 153 and to control the amount of the substance sprayed to the jetting section 170 . Here, the fourth valve 171 may be adjusted to remove the air remaining at the lower end, and then the sprayer 170 may spray pure cleaning liquid. When the jetting portion 170 regulates the amount of the gas or liquid injected through the valve or regulates the intensity of the jet through the fifth valve 173, the jetting pressure is such that the residual medium in the container is washed, The proper intensity should be adjusted so that it can be discharged to the outside.

In addition, the intensity of the jet can be configured to include a gauge (not shown) so that the amount of pressure can be confirmed in real time within the jetting unit 170 as an essential part for removing the residual media.

Accordingly, when the rinse liquid is sprayed to the jetting unit 170, the median is removed by injecting the low-pressure alcohol into the container while the pressure is adjusted to be relatively high through the fifth valve 173 at the lower end of the mixing chamber 110 desirable.

In order to spray the pure cleaning liquid, the air remaining in the inside is adjusted by the fourth valve 171 and is discharged to the outside. In order to discharge the internal water to the outside, ) May be preceded by a step of adjusting the fifth valve 173 so that the cleaning liquid in the second valve 173 may flow out little by little.

Since the first to fifth valves described above can be controlled independently of each other, the amount of each gas or liquid can appropriately be adjusted to the middle, middle, or selectively.

As shown in FIG. 5, it may further comprise a frame 190 capable of stably supporting components for removing media.

The connection end 115 provided on the outer surface of the body portion 112 of the mixture chamber 110 may be coupled to the upper end of the frame 190 after the connection. Thereby supporting the mixture chamber 110 so that the media removal apparatus 100 can clean the inner diameter-polished container in a stable state. In addition, the jetting section 170 may be fixed to the frame 190 to prevent the jetting portion from swinging due to the jetting pressure. The method of fixing the frame 190 is not limited to that described above, and it is also possible to hold the mixture in the mixing chamber 110 and various positions of the respective components.

6 is a flowchart illustrating a method of removing a medium according to the present embodiment.

Hereinafter, the media removal method according to the present embodiment will be described in detail.

First, a step (S10) of connecting the container, which is required to remove the residual medium, to the injection port 175 at the lower end of the media removal device 100 is performed. This is not an essential step to be done first, but it is desirable to fix the container first and perform the following steps. However, the order of connecting the container to the jetting unit 170 according to the contents of performing various steps may be variously modified.

After the container requiring the removal of the mediast residues is fixed to the injection port 175, a step S20 of supplying the rinse liquid from the liquid supply unit 130 may be performed. It is preferable that the process of locking the third valve 151 located at the lower end of the exhaust unit 150 and the upper end of the bellows 153 is performed in advance so that the washing liquid that has entered into the mixture chamber 110 is not discharged immediately, Opening the first valve 131 and injecting the cleaning liquid.

The cleaning liquid to be injected may be a cleaning solvent that does not contain dissolved oxygen. The cleaning solvent refers to a liquid that does not contain dissolved oxygen in the solvent and can be sterilized, and includes, for example, alcohols such as toluene and glycol ethers. And may be selectively injected into the mixture chamber 110 in the injected cleaning solvent. When the liquid is injected as described above, 10 to 60% of the volume of the mixture chamber 110 is injected so that the mixture chamber 110 can be maintained at the dead volume. This is to allow the liquid to flow well into the exhaust part 150.

Then, the process of supplying gas through the gas supply unit 120 into the mixture chamber 110 is performed (S30). At this stage, it is possible to further perform the step of supplying gas to the gas supply unit 120, purifying the gas, and regulating the gas supply amount.

More specifically, the step of opening the second valve 123 of the gas supply unit 120 and injecting and purging the gas proceeds, and then the first valve 131 of the liquid supply unit is closed and the gas gauge of the gas supply unit 120 121 to regulate the supply amount of the gas.

In the step of supplying the gas, the gas may be any one of inert gas, and preferably, nitrogen is used for purging. Since inert gas having little reactivity with other substances can be used to purge the interior of the mixture chamber 110 to prevent moisture or oxygen from being contained in the interior of the mixture chamber 110 and the container requiring media removal, It is mainly used for the purpose of suppressing damage inside the container caused by the generation of oxides.

Then, the liquid and gas injected through the liquid supply unit 130 and the gas supply unit 120 may be discharged through the exhaust unit 150 formed at the lower end of the mixture chamber 110 (S40).

The liquid may flow from the exhaust part 150 to the jet part 170, and then the valve of the jet part 170 may be opened to gradually flow the liquid downward. The liquid flowing down here is the above cleaning solvent and corresponds to a constituent for ultimately washing away residual media in the container.

After confirming that the pure liquid flows down, a step S50 is performed in which the mediator is removed by spraying the cleaning liquid.

The third valve 151 located at the upper end of the exhaust unit 150 and the upper end of the bellows 150 is opened slightly and is disposed on the right side to fill the cleaning liquid into the lower end line of the exhaust unit 150 and the spray unit 170 The third and fourth valves 171 and 173 can be opened. Thereafter, the fourth valve 171 is adjusted to remove air remaining in the lower line. When air is removed from the lower line, the fourth valve 171 may be locked. That is, the fourth valve 171 is mainly used for removing the air at the lower end. In the state where the third valve 151 of the exhaust unit 150 is opened, foreign substances such as moisture remaining in the medicament removal device 100 should be pushed out by the cleaning liquid and flow out to the outside. If it is confirmed that the cleaning liquid slightly flows to the outside, the fifth valve (173) of the jetting section (170) is adjusted to spray the liquid of the low pressure to the inner surface of the metal container after the particle flow processing to remove the remaining media .

In the media removal process, the cleaning liquid and the gas (preferably alcohol and nitrogen) among the cleaning liquid and the gas first push out the median residue due to the specific gravity difference, and then the gas blows and dries the remaining cleaning liquid in the mirror polished container . The cleaning liquid and gas used in this process are advantageous in that they are free from oxygen and dissolved oxygen and thus can prevent oxidation.

According to this preliminary process, one cleaning process is completed by ejecting the cleaning liquid and gas inside the mixture chamber to the outside.

The first to fifth valves described above can be controlled independently of each other, so that the amount of each gas or liquid can be appropriately adjusted.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, . Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Median removing device 110: Mixing chamber
120: gas supply unit 130: liquid supply unit
150: exhaust part 170:
190: frame first valve: 131
Second valve: 123 Third valve: 151
Fourth valve: 171 fifth valve: 173

Claims (13)

A mixture chamber;
A gas supply unit for supplying a gas for purging the mixture chamber;
A liquid supply connected to the mixture chamber and injecting a cleaning liquid into the mixture chamber;
An exhaust unit formed at a lower end of the mixture chamber to discharge liquid and gas; And
And a jetting portion connected to the discharge portion and jetting the liquid and the gas to remove the remaining media on the inner surface of the metal container processed by the particle flow processing. The method according to claim 1,
And nitrogen is injected into the mixture chamber by the gas supply unit. The method according to claim 1,
And selectively injecting the cleaning solvent into the mixing chamber by the liquid supply unit. The method according to claim 1,
A first valve provided in the liquid supply portion to adjust an amount of liquid injected into the mixture chamber; And
Further comprising a second valve disposed in the gas supply unit to adjust an amount of gas injected into the mixture chamber. 5. The method of claim 4,
A third valve disposed between the exhaust part and the jet part to adjust the amount of liquid and gas discharged to the jet part; And
Further comprising fourth and fifth valves provided in the jetting section, the fourth and fifth valves being capable of adjusting the amount and intensity of jetting of liquid and gas,
Wherein the first valve and the five valves are controlled independently of each other. 6. The method of claim 5,
And both ends of the gas supply part are provided with a connection part for supplying a gas into which the external gas flows or which flows into the mixture chamber,
Wherein a gas gauge for measuring a gas to be supplied is provided at the gas supply unit stop, so that the amount of gas injected into the mixture chamber can be confirmed. The method according to claim 6,
A connection portion through which the liquid and the gas are introduced through the exhaust portion and the bellows is provided at one end of the injection portion and an injection port through which liquid and gas are injected to the outside is provided at the other end;
Wherein the jetting unit is provided with a jetting gauge for measuring the amount of liquid to be jetted, so that the amount of jetted liquid can be confirmed. The method according to claim 1,
And a frame installed below the mixture chamber and supporting the mixture chamber. Injecting a cleaning liquid into the mixing chamber through a liquid supply connected to the mixing chamber;
Supplying gas into the mixing chamber through a gas supply;
Discharging liquid and gas through an exhaust part formed at a lower end of the mixture chamber;
And spraying the liquid and the gas through the spraying part connected to the discharge part to remove the media remaining on the inner surface of the metal container after the particle flow processing. 10. The method of claim 9, further comprising:
Further comprising the step of connecting a container requiring removal of the medium to the injection port at the lower end of the median removing device. 9. The method of claim 9, wherein in the step of supplying the gas
Supplying gas to the gas supply unit and purging the gas,
Further comprising the steps of: determining a gauge of the gas supply and adjusting the supply of gas injected into the second valve,
Wherein the gas is capable of injecting nitrogen. 11. The method of claim 11, wherein the step of adjusting the gauge of the gas supply
Wherein the gas injection pressure is 3 to 5 kg / cm < 2 >. 9. The method of claim 9, wherein in the step of supplying the liquid
The liquid may selectively inject a cleaning solvent, and when the cleaning solvent is injected, the mixture chamber may be maintained at a dead volume by injecting a volume of 10-60% in the mixture chamber,
Wherein the first to fifth valves are independently controlled.

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