KR20100106750A - Coating booth - Google Patents

Abstract

The coating booth according to the embodiment of the present invention, the main body having a painting chamber and an exhaust chamber to spray the paint on the object to be painted, an automatic coating unit for spraying the paint on the object to be painted in the painting chamber, and air flow in the painting chamber and the exhaust chamber Ventilation unit to form a, and an air curtain formed around the object to be painted so that the paint sprayed from the automatic coating unit flows toward the object to be coated along the air flow can improve the collection efficiency of the over spray paint.

Description

Painting Booth {COATING BOOTH}

      BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a painting booth, and more particularly, to a painting booth which improves the collection efficiency of an overspray paint by improving the flow of air passing around a painting object in a painting chamber by a simple structure.

Spray coating is widely used as a coating method for automobiles and home appliances. The spray coating simply uses compressed air, or electrostatic spray coating using compressed air and charging. Moreover, as a coating material used by spray coating, there exist an organic solvent type coating material, powder coating material, etc.

In such spray painting, coating is performed in a painting booth to prevent the paint (hereinafter referred to as "over spray coating") which is not attached to the painting object from being scattered in the air.

The painting booth may be provided with a water curtain on one side of the painting chamber. The water curtain causes an aqueous fluid such as water to flow down from the upper side along one side of the coating chamber. Such a water curtain is formed to capture a part of the overspray paint. In addition, the overspray paint not collected in the water curtain may be collected in a paint recovery unit installed behind the water curtain and disposed of or recycled.

However, in such a paint booth, air and paint particles passing around the object to be painted inside the paint chamber flow back to the opposite side of the water curtain and adhere to the inside of the paint chamber, thereby increasing contamination of the paint chamber and at the same time collecting efficiency of the over spray paint. This had a problem of being reduced.

One aspect of the present invention is to provide a coating booth to improve the flow of air passing around the object to be painted inside the painting chamber by a simple structure to prevent contamination of the painting chamber and increase the collection efficiency of the over spray paint. have.

The coating booth according to an embodiment of the present invention, a main body having a painting chamber and an exhaust chamber for spraying paint on the painting object, an automatic coating unit for injecting the coating material to the painting object in the painting chamber, and the painting chamber and the exhaust gas. And an air curtain formed around the object to be coated so that the ventilation unit forming an air stream in the seal and the paint sprayed from the automatic coating unit flow toward the object to be coated along the air flow.

In addition, the painting chamber is divided into a first region in which the automatic coating unit is installed, a second region in which the painting object is seated and painted, and a third region in which the paint chamber is partitioned from the exhaust chamber. The inlet side adjacent to the first chamber of the painting chamber is formed to be wide and the outlet side adjacent to the third chamber of the painting chamber is formed to be narrow so that the air passing therebetween is at least one. .

In addition, a water curtain for collecting the overspray paint not attached to the object to be painted is provided in the third chamber of the painting chamber, and the water curtain is disposed at a side of the third chamber of the painting chamber that distinguishes the exhaust chamber from the first water. And a curtain plate and second and third water curtain plates disposed on a bottom surface of the third region of the painting chamber.

In addition, the ventilation unit may include an intake unit having an intake fan to suck outside air into the first chamber of the painting chamber, and an exhaust unit having an exhaust fan to discharge air from the third chamber of the painting chamber to the outside.

The apparatus may further include a paint storage unit for supplying paint to the automatic coating unit, wherein the paint storage unit is integrally formed with the painting chamber.

In addition, the body is characterized in that at least one of the ion gun or air gun for removing the foreign matter present on the surface of the coating object is installed.

In addition, the automatic coating unit is characterized in that it comprises a robot for painting, and a conveying unit passing through the upper portion of the rail attached to the painting chamber first region and the painting chamber second region.

In addition, the painting robot includes a robot arm part of the articulated joint, a driving motor part for driving the robot arm part, a spray nozzle part mounted on the tip of the robot arm part, and a paint supply part for supplying paint to the spray nozzle part. It is characterized by.

Therefore, the paint booth according to the embodiment of the present invention can improve the flow of air in the paint chamber to prevent contamination of the paint chamber and improve the collection efficiency of the over spray paint.

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

1 is a perspective view showing a painting booth according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the painting booth shown in FIG.

As shown in FIG. 1 and FIG. 2, the paint booth 10 according to an exemplary embodiment of the present invention may include a main body 20 having a paint chamber 30 and an exhaust chamber 40, and a main body 20. It has a wheel portion 50 to enable movement.

The main body 20 includes an automatic coating unit 100 for spray painting the object to be painted in the painting chamber 30, and a ventilation unit for forming air flow in the painting chamber 30 and the exhaust chamber 40. The paint recovery unit 300 provided in the exhaust chamber 40 and the coating chamber 30 so as to take out the over-spray paint floating in the painting chamber 30 outside the painting chamber 30. It is formed and comprises a paint storage unit 600 for supplying paint to the automatic coating unit (100).

The painting chamber 30 according to the embodiment of the present invention has a painting chamber first region 31 in which the automatic painting unit 100 is installed, and a painting chamber second region in which spray painting is performed by mounting a painting object. 32) and the coating chamber 3rd area 33 which consists of the exhaust chamber 40 and a compartment.

The main body 20 is formed with a door 21 that opens and closes the main body 20 so that an object to be painted is supplied to the first chamber 31 through the supply unit, not shown. In the lower portion of the), an ion gun 22 and an air gun 23 may be formed to remove foreign substances present on the surface of the object to be painted.

An automatic coating unit 100 is installed in the painting chamber first region 31 to spray paint into the painting chamber second region 32 on which the object to be painted is placed. The automatic painting unit 100 is a conveying unit 120 passing through the upper portion of the coating robot 110, the rail 124 attached to the painting chamber first region 31 and the painting chamber second region (32). It may include.

The robot 110 for painting includes a multi-joint robot arm 111, a drive motor 112 for driving the robot arm 111, a spray nozzle part 113 mounted at the tip of the robot arm 111, and , A paint supply unit (not shown) for supplying paint to the spray nozzle unit 113, an air supply unit (not shown) for supplying air for spraying the paint to the spray nozzle unit 113, and a robot arm unit 111. It may be configured to include a control unit (not shown) for operating in accordance with the operation program to be set in advance.

The paint supply unit (not shown) of the painting robot 110 is connected to the paint storage unit 600 formed integrally with the paint chamber 30 to receive paint. Therefore, the painting system using the painting booth 10 according to the embodiment of the present invention is designed to occupy a minimum space, thereby realizing the compactness of the painting system.

The conveying unit 120 receives the object to be painted from the supply unit (not shown) to the painting chamber first region 31 and then moves along the rail 124 to the painting chamber second region 32. The conveying unit 120 includes a holding part 121 for holding an object to be painted, a support part 122 for supporting the holding part 121, and a driving part 123 connected to the lower end of the support part 122. can do.

The ventilation unit 200 includes an intake unit 210 connected to an upper surface of the first chamber 31 of the painting chamber, and an exhaust unit provided at an upper portion of the exhaust chamber 40 formed on the rear surface of the third chamber 33 of the painting chamber. And a filter 230 installed on the lower surfaces of the intake unit 210 and the exhaust unit 220, respectively.

An intake fan 211 is provided in the intake portion 210 as an intake means, and the outside air can be sucked into the first chamber 31 of the painting chamber from above. In addition, an exhaust fan 221 is provided in the exhaust unit 220 as an exhaust means, and the air in the exhaust chamber 40 may be discharged to the outside. The outside air sucked into the intake unit 210 by the blowing action of the intake fan 211 and the exhaust fan 221 is the paint chamber first region 31, the paint chamber second region 32, and the paint chamber third It can be discharged to the exhaust unit 220 via the region 33 and the exhaust chamber 40. Therefore, a certain air flow is formed from the spray nozzle part 113 of the painting robot 110 toward the object to be painted, so that the paint particles can be easily attached to the object to be painted.

An exhaust chamber 40 is formed on the rear surface of the painting chamber third region 33. The exhaust chamber 40 is provided with a paint recovery unit 300 for recovering overspray paint. The paint recovery unit 300 includes an eliminator 310 for capturing over spray paint and releasing only air upward, and a storage tank 320 for storing the recovered paint.

The eliminator 310 is provided with several inclined plates 311 arranged in the vertical direction. The paint flowing into the eliminator 310 is captured by the inclined plate 311, and the captured paint flows in the lower storage tank 320 along with the water and falls along with the flowing water flowing through the inclined plate 311.

3 is an enlarged plan view of the second area of the coating room according to the exemplary embodiment of the present invention.

As shown in FIG. 2 and FIG. 3, the painting chamber second region 32 is a region where the painting object is painted by the automatic painting unit 100. An air curtain 400 is installed in the painting chamber second area 32 to prevent backflow of air passing between the objects to be painted. As shown in FIG. 3, the air curtain 400 is formed to have a wider opening at the entrance 32a of the paint chamber second region 32 adjacent to the paint chamber first region 31 along the flow of air. The side of the exit 32b of the adjacent coating room second region 32 may be provided with a guide plate 410 disposed to be narrowly formed.

Therefore, the air passing through the coating chamber first region 31 by the guide plates 410 provided on both sides with the object to be painted passes through the inlet 32a of the painting chamber second region 32 at a high speed. Since the second chamber 32 exits from the second chamber 32 and enters the third chamber 33, the air in the second chamber 32 is transferred to the first chamber 31 in view of the overall air flow. It can prevent the backflow. As a result, the paint particles flow from the spray nozzle part 113 of the painting robot 110 toward the painting chamber second region 32 and the exhaust chamber 40 on which the painting object is seated along a predetermined air flow. The collection efficiency of the spray paint can be improved.

4 is an enlarged perspective view of the coating room third region according to the exemplary embodiment of the present invention.

As shown in FIG. 2 and FIG. 4, the painting chamber third region 33 is a region where the painting chamber 30 and the exhaust chamber 40 are partitioned, and a plurality of water curtains 500 are provided.

In the painting chamber third region 33, a first water curtain plate 510 is formed on the side surface 33a of the painting chamber third region 33 to distinguish the painting chamber 30 and the exhaust chamber 40. Second and third water curtain plates 520 and 530 may be provided on the bottom surface 33b of the coating chamber third region 33.

The first water curtain plate 510 may be arranged to form a flow of water from above the side surface 33a of the third chamber 33 to the paint chamber. In addition, the second water curtain plate 520 may be disposed to be inclined to form a flow of water along the reverse direction of the air flow on the bottom surface 33b of the third chamber 33 of the painting chamber. In addition, the third water curtain plate 530 may be inclined so as to form a flow of water along the air flow at the bottom surface 33b of the third region 33 of the painting chamber.

Therefore, the overspray paint in the painting chamber 30 generated during the painting process can be collected through the water flowing in the multiple water curtains 500, thereby preventing overspraying the interior of the painting chamber 30 and at the same time. The collection efficiency of the paint can be further increased.

Next, the operation of the coating booth according to an embodiment of the present invention will be described.

First, the ventilation unit 200 and the paint recovery unit 300 of the painting booth 10 are started to form a flow of air in the painting chamber 30. Then, the door 21 in front of the painting chamber 30 is opened, and a painting unit is conveyed to transfer the painting object.

Next, the paint is sprayed from the spray nozzle part 113 of the painting robot 110 toward the painting object to paint the painting object. At this time, a part of the paint sprayed from the spray nozzle part 113 of the painting robot 110 is oversprayed to float in the painting chamber 30. In the painting chamber 30, air is supplied from the intake unit 210 at a predetermined flow rate, and air is forcibly formed by a method in which air is exhausted from the exhaust unit 220 at a predetermined flow rate.

The overspray paint is conveyed in the eliminator 310 of the exhaust chamber 40 along this air flow. The over-spray paint flowing into the eliminator 310 becomes water droplets at the same time as the water flowing along the inclined plate 311 and flows down into the lower reservoir, and the air passes through the eliminator 310 to the upper exhaust portion 220. ) Flows toward the outside and is exhausted to the outside of the painting chamber 30.

1 is a perspective view showing a paint booth according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the paint booth shown in FIG. 1.

3 is an enlarged plan view of the second area of the coating room according to the exemplary embodiment of the present invention.

4 is an enlarged perspective view of the coating room third region according to the exemplary embodiment of the present invention.

Description of the Related Art [0002]

10 ... Painting booth 20 ... Main body

30.Paint Room 40 ... Exhaust Room

100 ... Automatic coating unit 200 ... Ventilation unit

300 ... Paint recovery unit 400 ... Air curtain

500 Water curtain 600 Paint storage unit

Claims (8)

A main body having a painting chamber and an exhaust chamber for spraying paint on the painting object, An automatic coating unit for spraying paint on the object to be painted in the painting chamber; A ventilation unit for forming an air flow in the painting chamber and the exhaust chamber; And an air curtain formed around the coating object such that the paint sprayed from the automatic coating unit flows toward the painting object along the air flow. The method of claim 1, The painting chamber is divided into a first region in which the automatic coating unit is installed, a second region in which the object to be painted is painted, and a third region in which the painting chamber is partitioned from the exhaust chamber. The air curtain may include at least one guide plate disposed so that the inlet side adjacent to the first chamber of the painting chamber is wide and the outlet side adjacent to the third chamber of the painting chamber is narrowly formed so that air passing between the objects to be painted is not flowed back. Paint booth, characterized in that it comprises. 3. The method of claim 2, The paint chamber third area is provided with a water curtain for collecting the over-spray paint that is not attached to the painting object, The water curtain may include a first water curtain plate disposed on a side surface of the third chamber of the painting chamber that is separated from the exhaust chamber, and a second and third water curtain plate disposed on a bottom surface of the third chamber of the painting chamber. Paint booth characterized by the above. 3. The method of claim 2, And the ventilation unit includes an intake unit having an intake fan to suck outside air into the first chamber of the painting chamber, and an exhaust unit having an exhaust fan to discharge air from the third chamber of the painting chamber to the outside. The method of claim 1, Further comprising a paint storage unit for supplying paint to the automatic coating unit, The paint storage unit is a coating booth, characterized in that formed integrally with the painting chamber. The method of claim 1, The booth of claim 1, wherein the main body is provided with at least one of an ion gun or an air gun for removing the foreign matter present on the surface of the coating object. 3. The method of claim 2, The automatic coating unit is a painting booth, characterized in that it comprises a robot for painting, and a conveying unit passing through the upper portion of the rail attached to the painting chamber first region and the painting chamber second region. The method of claim 7, wherein The painting robot includes a robot arm part of the articulated joint, a driving motor part for driving the robot arm part, a spray nozzle part mounted at the tip of the robot arm part, and a paint supply part supplying paint to the spray nozzle part. Paint booth characterized by the above.

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