JP2559349B2 - painting booth - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a coating booth. Specifically, it concerns a coating booth suitable for capturing coating mist.

[0002]

2. Description of the Related Art As a conventional coating booth, there is known one in which a central sectional view is shown in FIG. 3 and a partially enlarged perspective view is shown in FIG. That is, 51 is a coating booth. Reference numeral 52 is a sludge, which is installed on the floor surface of the coating booth 51. Reference numeral 53 is a transfer rail, which is installed on the drainboard 52. The transport rail 53 transports an object to be transported 54 such as an automobile body. 55 is a worker, and the board 5
The work to be conveyed 54 is painted on the surface 2. Reference numeral 56 denotes a flow plate, which is installed at least along the coating process of the coating booth 51 so as to face each other so that the lower the center of the two inclined surfaces is, and to be inclined so that a gap is formed at the tip between the two. Let 57 is a water channel. The water channel 57 is the flow plate 5
It is installed on the upper part along the line 6. A water supply pipe 58 is installed at the bottom of the water channel 57 to allow water to flow from the surface of the water channel 57. Reference numeral 59 denotes a drainage channel, which circulates the stored drainage and uses a strainer or the like to circulate the mist in the water supply pipe 58 after collecting the mist. 60 is
It is an exhaust fan.

Then, when the exhaust fan 60 is driven, the gas in the coating booth 51 is sucked between the flow plates 56, 56. At the same time, when the carrier water is supplied from the water supply pipe 58, the carrier water overflows from the water channel 57, falls on the surface of the flow plate 56, and reaches the drainage channel 59, as shown in FIG. At this time, the coating mist 61 falling from the coating booth 51 falls on the water channel 57 or the flow plate 56, is conveyed to the drainage channel 59, and is collected by passing through the strainer.

[0004]

However, the conventional example as shown in FIGS. 3 and 4 has a problem that the volume of the water channel 57 needs to be large due to the overflow method. Further, as shown in FIG. 4, when the aggregated mist 62 in which the coating mist is aggregated is generated, the water film on the surface of the flow plate 56 is cut off and the water film is cut off 63.
Occurs, and the mist 61 adheres to the surface of the flow plate 56, resulting in a problem that the coating mist capturing efficiency decreases. Further, since the aggregated mist 62 may be precipitated in the water channel 57 and the precipitated mist 64 may be generated, there is a problem that cleaning is troublesome. Further, the uniformization of the water film has a problem that adjustment is difficult due to the construction accuracy of the flow plate 56.

[0005]

Means for Solving the Problems

[0006] The sludge installed on the bottom of the coating booth, the flow plate inclined downward as the mutual proximity to the lower part of the saw and having a gap between the tips, and the ceiling surface is hermetically sealed at the base of the flow plate. A water channel that is installed and has a drain port at the bottom to supply carrier water to the flow plate surface by water pressure, a water supply pipe that supplies carrier water to the water channel, and a gas in the coating booth through the gap between the tips of the flow plates. A coating booth, which comprises an exhaust fan for exhausting

[0007] to provide.

[0008]

[Operation] The exhaust fan exhausts the gas in the coating booth. Then, the exhaust containing the exhaust mist is exhausted along the surface of the flow plate through the gap between the tips of the flow plate.

On the surface of the flow plate, the carrier water is supplied from the drainage port at the lower part of the water channel to form a water film, so that the exhaust mist does not adhere to the flow plate, and the water film causes the exhaust mist to be discharged together with the carrier water. It falls and is collected. At this time, the ceiling surface of the water channel is hermetically installed and a drain port is provided in the lower part, and the carrier water is supplied to the flow plate surface by water pressure.Therefore, mist does not mix from the ceiling surface, and mist does not flow into the drain port. It will not adhere and cut the water film on the surface of the flow plate.

[0010]

Embodiment An explanation will be given according to FIG. 1 showing a central sectional view of an embodiment of the present invention and FIG. 2 showing an enlarged view of the same portion.

Reference numeral 11 is a coating booth. Painting booth 1
1 is installed in the coating process on the transfer line. 12 is
It's a snowboard. The drainboard 12 is installed on the bottom surface of the coating booth 11. A conveyor rail 13 is installed on the slats 12, an object to be conveyed 14 such as an automobile body is conveyed, and a worker 15 performs a painting operation.

Reference numeral 16 is a flow plate. The flow plate 16 is composed of two metal plate-like bodies and is installed over the entire length of the coating booth 11 along the coating process. The flow plate 16 is inclined downward as it goes to the central part which is close to the lower parts of the slats 12, and between the tips. Are installed so that there is a gap.

Reference numeral 17 is an exhaust fan. Exhaust fan 1
7 exhausts the gas in the coating booth through the gap between the tips of the two flow plates 16. 18 is a drainage channel. The drainage channel 18 is installed below the gap between the tips of the flow plate 16.

Reference numeral 21 is a water channel. The water channel 21 is composed of a hollow rectangular parallelepiped, is installed at the base of the flow plate along the conveying line direction of the coating booth 11 along the entire length of the coating booth 11, and is provided with a drain port 22 having a height of about 10 mm at the bottom. . The ceiling surface of the water channel 21 is sealed. 23
Is a slide plate that is installed along the lower part of the side surface of the water channel 21 and can be moved up and down. By raising it, the opening height of the drainage port 22 is changed to adjust the opening size, and for convenience of cleaning. Also contribute. 24
Is a water supply pipe. The water supply pipe 24 supplies the carrier water to the water channel 21 from below.

The exhaust fan 17 exhausts the gas in the coating booth 11. Then, the exhaust containing the exhaust mist is
Flow plate 16 along the surface
Exhausted through the gap between the tips.

The water supply pipe 2 is connected to the water channel 21.
4, the carrier water is supplied, and when the water is accumulated, the carrier water is supplied to the surface of the flow plate 16 from the drain port 22 at the lower part of the water channel 21 to form a water film. Due to the water film without adhering, it is dropped together with the carrier water into the drain tank 18 and is collected. The equalization of the discharge amount of the entire water channel is adjusted by the air compression sealed in the upper part of the water channel 21 and the opening size of the discharge port 22. The carrier water containing the coating mist is recovered by the strainer and supplied again to the water supply pipe 24. Since the water pressure is forced out, the size of the water channel 21 can be reduced.

[0017]

EFFECTS OF THE INVENTION According to the present invention, since it is pushed out by water pressure, the aggregated mist does not stay, the water film is not broken in the flow plate, and the coating mist does not stay in the water channel, so cleaning is unnecessary. Becomes Further, since the water channel is small, it is possible to make a large exhaust space in the lower part, and it becomes easy to install a mist separator or the like. Moreover, since the amount of water can be adjusted, the construction of the flow plate becomes easy.

[Brief description of drawings]

FIG. 1 is a central sectional view of an embodiment of the present invention.

FIG. 2 is a partially enlarged sectional view of an embodiment of the present invention.

FIG. 3 is a central sectional view of a conventional example.

FIG. 4 is a partially enlarged perspective view of a conventional example.

[Explanation of symbols]

 11 Painting Booth 12 Drainboard 16 Flow Plate 17 Exhaust Fan 21 Water Channel 22 Discharge Port 24 Water Pipe

Claims (1)

(57) [Claims] 1. A drainboard installed on the bottom of the coating booth,
A flow plate that slopes downward and has a gap between the tips as it approaches each other on the bottom of the slats, and a ceiling surface is installed at the base of the flow plate with the ceiling surface sealed and a drain port is provided at the bottom and the flow plate is hydraulically operated. A water channel that supplies carrier water to the surface, a water supply pipe that supplies carrier water to the water channel, an exhaust fan that exhausts the gas in the coating booth through the gap between the flow plate tips, and a lower part between the flow plate tips. A painting booth, which consists of an installed drainage channel.