KR100604338B1 - Device for removing bubble - Google Patents

Abstract

The bubble removing device according to the present invention is used in a device in which bubbles are unnecessarily generated in a liquid (7) flowing in a tank (8) following a pipe (2) by the power of the pump (1) and then flowing in a specific direction. And mounted on the inner wall of the tank 8, wherein the wirebrush 9, 11 including a plurality of protrusions is at least near the surface of the liquid 7 inside the tank 8 and inside the liquid 7 respectively. Characterized in that one provided.

According to the bubble removing apparatus according to the present invention, by installing a wire brush or a liquid dropping device that receives mechanical energy by a wire brush or an electric motor on the liquid surface, the bubbles generated on the liquid surface are selectively removed or suppressed. By installing a wire brush that receives mechanical energy by an electric motor in the liquid, bubbles generated in the liquid may be selectively removed or suppressed.

Description

Bubble removing device {DEVICE FOR REMOVING BUBBLE}

1 is a schematic cross-sectional view showing a problem of a device in which bubbles are generated in a conventional PCB development process.

Figure 2 is a schematic cross-sectional view showing a configuration for removing bubbles 1 on the developer surface with a second wire brush of the bubble removing apparatus according to the present invention.

Figure 3 is a schematic cross-sectional view showing a configuration for removing the bubble 1 on the surface of the developer with a dropping container of the bubble removing apparatus according to the present invention.

Figure 4 is a schematic cross-sectional view showing a configuration of removing the bubble 2 in the developer by rotating the first wire brush with an electric motor of the bubble removing apparatus according to the present invention.

Figure 5 is a schematic cross-sectional view showing a device for removing the bubble 1 on the surface of the developer by linearly reciprocating the second wire brush with the electric motor of the bubble removing apparatus according to the present invention.

Figure 6 is a detailed view showing the configuration of the front and side of the first wire brush of the bubble removing apparatus according to the present invention.

Figure 7 is a detailed view showing the configuration of the front and side of the second wire brush is formed with projections in all directions in the bubble removing apparatus according to the present invention.

Figure 8 is a detailed view showing the configuration of the front and side of the second wire brush is a projection formed in one direction in the bubble removing apparatus according to the present invention.

9 is a plan view illustrating a state in which the second wire brush of the bubble removing device according to the present invention is assembled to the second wire brush fixing frame.

10 is a schematic cross-sectional view showing an apparatus for removing bubbles 1 and bubbles 2 on the surface of the developer and in the developer with a first wire brush of the bubble removing device according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: pump 9: 1st wire brush

2: piping 11: 2nd wire brush

3: nozzle 12: electric motor

4: PCB 13: Dropping Can

5: air bubble 1 14: roller

6: bubble 2 15: valve

7: developer 19: wire brush fixing frame

8: tank

The present invention relates to an air bubble removing device, and more particularly, to eliminate the air bubbles only by a purely mechanical manner without using the antifoaming agent commonly used to remove air bubbles, and to solve the disadvantages of using the antifoaming agent and to easily eliminate unnecessary air bubbles. Relates to a device with the ability to remove it.

The bubble removing device is a device that can be used for removing bubbles that may be unnecessarily generated in a limited space such as a tank in a printed circuit board manufacturing process, a sewage treatment process, a food manufacturing process, and the like.

Among these, if the technical field related to the circuit development process and the post-corrosion peeling process in the manufacturing process of the printed circuit board (PCB) is described as an example, Bubbles are generated when the developer or the stripping solution is injected. The generated bubbles flood out of the liquid tank and degrade the developability of the printed circuit board.

Figure 1 illustrates a problem of the existing technology that bubbles are generated during the development process of the PCB. As shown in FIG. 1, the developing solution 7 in the tank 8 during the developing process is sprayed onto the PCB 4 on the roller 14 while passing the nozzle 3 through the pipe 2 using the pump 1. In this case, bubbles 1 (5) and bubbles 2 (6) are generated. At this time, if the pump 1 is continuously operated, the bubbles 1 (5) and the bubbles 2 (6) are increased and flooded out of the tank (8). In addition, bubbles 2 (6) present in the developing solution (7) are ejected to reduce the circuit phenomenon of the PCB (4).

Therefore, in order to overcome these problems, conventionally, an antifoaming agent, which is a chemical that removes air bubbles, has been used. However, the chemical solution causes cost increase of PCB, odor generation, contamination of developer tank, and deterioration of circuit developability of printed circuit board.

In addition, in the process of manufacturing food, such as a baking process using a foam material, it can not be overlooked that such antifoaming agent may cause odor or harmful to the human body. Therefore, there is a need to propose an alternative to the antifoaming agent that generates and suppresses bubbles in a chemical principle having existing problems by removing and suppressing bubble generation using a bubble removing device by a mechanical method.

SUMMARY OF THE INVENTION The present invention has been made to overcome the problems of the above technology, and inevitably generates unnecessary bubbles in a specific process such as a circuit development process and a peeling process after circuit corrosion during the manufacturing process of a printed circuit board (PCB). The main object is to provide a new mechanical means for removing bubbles by a mechanical method rather than a chemical method.

It is an object of the present invention to provide a wire brush that removes or suppresses bubbles generated on a liquid surface by installing a wire brush on a surface of a fluid, especially a liquid, or receives mechanical energy from an electric motor inside a liquid. It can be achieved by installing or removing or suppressing bubbles inside the liquid.

In order to achieve the above object, the bubble removing device according to the present invention is a bubble in the liquid (7) flowing along the pipe (2) by the power of the pump (1) flowing into the tank (8) and then flows in a specific direction Used in an unnecessarily generated device, it is mounted on the inner wall of the tank 8, the wirebrush 9, 11 including a plurality of projections is near the surface of the liquid 7 and the liquid inside the tank 8 (7) It is characterized in that each provided with at least one.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale, and like reference numerals in each of the drawings refer to like elements.

In addition, the embodiment described in detail below is made around the bubble removing apparatus used in the PCB manufacturing process, but is not limited to this in the tank for storing and flowing the fluid included in the technical spirit pursued by the present invention It is obvious that the apparatus according to the present invention is not limited to the PCB manufacturing as well as the same function and idea can be exhibited even in the defoamer device for sewage treatment and food manufacturing process that is likely to generate unnecessary bubbles in the fluid. Do.

In addition, of course, the developer 7 expressed in the present invention does not depart from the spirit of the present invention even when the term "liquid" is used as a generic term.

2 is a schematic view showing the basic configuration of the bubble removing apparatus according to the present invention. Specifically, since the developer 7 in the tank 8 flows toward the pump 1, the bubble 1 (5) of the developer is pumped ( 1 shows a device in which the second wire brush 11 is installed near the pump to prevent flow toward the 1) side. The second wire brush 11 is mounted on the wall in the tank 8 by known fixing means, more preferably at least one around the surface of the developer 7, and at least one inside the developer 7. do. 2 shows an example in which the second wire brush 11 is located around the surface of the developer 7, and the second wire brush 11 is a bubble 1 present on the surface of the developer 7. (5) occurs and thereby prevents the developing solution 7 from overflowing the tank 8.

It can be selected differently according to the direction of the brush of the second wire brush (11).

FIG. 7 illustrates a shape in which hairs or protrusions of the wire brush are formed in all directions, that is, around the brush body 360 degrees, and in FIG. 8, the direction of the brush is in one direction, that is, the flow of the developer 7. The shape formed toward the direction opposite to the direction was shown. The device according to the invention can have a variety of arrangements depending on the choice of the second wirebrush 11. Of the various arrangements of such wire brushes, FIG. 2 shows that three different second wire brushes 11, which are one of the preferred embodiments, are arranged as three. 2 has been described for the preferred embodiment of the present invention, it will be understood by those skilled in the art that changes may be made without departing from the spirit and scope of the present invention.

FIG. 3 is a view showing a state in which a dropping container 13 is additionally installed in the bubble removing device according to the present invention. Specifically, the developing solution 7 in the tank 8 flows toward the pump 1. In order to prevent the bubble 1 (5) of the flow toward the pump (1) is shown a device in which the drop container 13 is installed so that the drop developing solution 10 falls near the pump.

When the drop developer 10 falls on the developer 7 surface through the pipe 2, the kinetic energy of the drop developer 10 is transferred to the developer 7 surface. The kinetic energy transmitted to the developer 7 surface is transferred to the bubble 1 (5) on the surface of the developer to remove the bubbles generated. In addition, the kinetic energy transmitted to the developer 7 surface suppresses the generation of bubbles. As a result, the bubble 1 (5) can be prevented from overflowing out of the tank (8). By applying the valve 15 to the drop container 13 according to the present invention which eliminates and suppresses the generation of the bubbles 1 (5) using the drop developer 10, the drop container 13 is controlled by lever adjustment of the valve 15. The amount of the developer 7 introduced into the can be adjusted.

If the amount of the drop developer 10 increases, the amount of kinetic energy transmitted to the developer 7 surface can be increased to eliminate and suppress the generation of the bubbles 1 (5), but due to the increase of the developer 7 Bubble 1 (5) also increases. On the other hand, if the amount of the drop developer 10 is reduced, the amount of kinetic energy transmitted to the developer 7 surface decreases, thereby reducing the effect of removing and suppressing the generation of bubbles 1 (5), but reducing the developer 7. Due to the bubble 1 (5) is reduced. Therefore, the amount of the drop developing solution 10 should be made to be optimal by controlling the amount of the developing solution 7 flowing into the dropping container 13 into the developing solution 7 surface by the valve 15. The dropping container 13 is removed while bubbles 2 (6) existing in the developing solution 7 flow down the dropping container 13 together with the developing solution 7 so that only the developing solution 7 is dropped in the absence of bubbles. Function.

Figure 4 relates to a further embodiment of the bubble removing apparatus according to the present invention, specifically, since the developer 7 in the tank 8 flows toward the pump 1, bubbles 2 (5) of the developer are pumped ( In order to prevent the flow toward 1), the electric motor 12 is applied to the device having the first wire brush 9 installed near the pump and the first wire brush 9 provided with the electric motor 12 to the first wire brush 9 Shows a device that applies mechanical energy to the

As a result, by effectively delivering mechanical energy to the bubbles 2 (6) in the developer (7), it is possible to remove the bubbles (2) 6 and to suppress the production. That is, the number of bubbles 2 (6) is reduced to minimize the bubbles 2 (6) finally sucked into the pump (1) and suppress the deterioration of developability of the PCB (4). As a side effect of applying the present invention, the number of bubbles 1 (5) is reduced to prevent the bubbles 1 (5) from overflowing out of the tank (8).

FIG. 5 is a variation of the mounting structure of the second wire brush 11 according to the present invention, in which the bubbles 2 (5) of the developing solution 7 are formed because the developing solution 7 in the tank 8 flows toward the pump 1. In order to prevent flow toward the pump 1, the motor 18 is mounted near the pump 1, and the structure which installed in the 2nd wire brush fixing frame 19 connected with this motor 18 is shown.

At least one second wire brush 18 is fixed to the second wire brush fixing frame 19 in a direction perpendicular to the direction in which the developer 7 flows, and is preferably located near the surface of the developer 7 so as to be placed on the surface thereof. Contributes to eliminating bubbles.

In addition, between the electric motor 18 and the second wire brush fixing frame 19, a crank shaft for converting the rotational motion of the electric motor 18 into a linear reciprocating motion is connected.

Through this configuration, the rotational energy of the electric motor 18 is changed into a linear reciprocating kinetic energy to linearly reciprocate the second wire brush fixing frame 19, thereby finally operating characteristics in which the second wire brush 11 is linearly reciprocated. Have As a result, compared to simply fixing the second wire brush 11 to the inner wall of the tank 8, the bubble 1 (5) is efficiently removed and suppressed the generation.

9 illustrates the shape of fixing the second wire brush 11 to the second wire brush fixing frame 19 in detail.

FIG. 10 shows that the developer 7 in the tank 8 flows toward the pump 1 so that the bubbles 1 (5) and 2 (6) of the developer are prevented from flowing toward the pump 1 in the first place. The apparatus which installed the wire brush 9 is shown. The first wire brush 9 prevents the generation of the bubbles 1 5 present on the developer 7 surface and the overflow of the tank 8. In addition, the number of bubbles 2 (6) is reduced to minimize the bubbles 2 (6) finally sucked into the pump (1) and at the same time to suppress the developability of the PCB (4).

As described so far, the configuration and operation of the bubble removing apparatus according to the present invention have been expressed in the above description and the drawings, but this is merely an example, and the spirit of the present invention is not limited to the above description and the drawings. Of course, various changes and modifications can be made without departing from the technical spirit.

As described above, the bubble removing device according to the present invention selectively removes or generates bubbles generated on the liquid surface by installing a wire brush or a liquid dropping device that receives mechanical energy by a wire brush or an electric motor on the liquid surface. In addition to suppressing the above, by installing a wire brush in which mechanical energy is transmitted by the electric motor in the liquid, bubbles generated in the liquid may be selectively removed or suppressed.

Due to this, it is possible to prevent the liquid from overflowing the liquid tank, and furthermore, it is possible to remove the air bubbles only by a mechanical device rather than a chemical method, thereby resulting in cost reduction, odor prevention of the antifoaming agent, and environmental pollution prevention effect.

Claims (6)

In an apparatus in which bubbles are unnecessarily generated in the liquid 7 which flows in the tank 8 and then flows in a specific direction following the pipe 2 by the power of the pump 1, it is mounted on the inner wall of the tank 8. In the bubble removing device is provided with at least one wire brush (9, 11) comprising a plurality of protrusions, respectively, in the vicinity of the surface of the liquid (7) and inside the liquid (7), A drop container (13) circulated downwardly from one side of the pipe (2) to drop the liquid (7) introduced through the pipe (2) into the tank (8) and into the drop container; The upper one side of the pipe connected between the (13) and the pipe (2), characterized in that the valve (15) that can adjust the amount of falling of the liquid (7), bubble removing device. In an apparatus in which bubbles are unnecessarily generated in the liquid 7 which flows in the tank 8 and then flows in a specific direction following the pipe 2 by the power of the pump 1, it is mounted on the inner wall of the tank 8. In the bubble removing device is provided with at least one wire brush (9, 11) comprising a plurality of protrusions, respectively, in the vicinity of the surface of the liquid (7) and inside the liquid (7), The wire brushes 9 and 11 are connected to the electric motors 12 and 18 mounted around the tank 8 so as to rotate or linearly reciprocate. The wire brush is connected by a crank shaft for converting the rotational movement of the electric motor 18 into a linear reciprocating motion, taking a frame shape consisting of an internal hollow structure, and including at least one of the wire brushes 9 and 11 therein. A bubble removing device, characterized in that a fixing frame (19) is provided near the surface of the liquid. delete delete delete delete

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