JPH0614801Y2 - painting booth - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a painting booth for painting a vehicle body.

<Prior Art> When painting a car body, the car body is continuously transported in a paint booth for painting.

Figures 4 and 5 show conventional coating booths. The coating booth 1 is a preparation room 2, a spray room 3, a setting room 4, a baking furnace 5
The vehicle body 6 is conveyed from the preparation chamber 2 to the spray chamber 3, the setting chamber 4, and the baking furnace 5 by a belt conveyor (not shown) or the like. An air supply fan 7 is provided above the coating booth 1, and the air supply fan 7 is connected to the ceilings of the preparation room 2, the spray room 3 and the setting room 4 by a communication passage 8. In addition, reference numeral 9 in the drawing denotes an air volume adjusting damper. Exhaust fans 10 are provided below the preparation chamber 2, the spray chamber 3, and the setting chamber 4, respectively, and each exhaust fan 10 communicates with the floor of the preparation chamber 2, the spray chamber 3, and the setting chamber 4 through a communication passage 11. There is.

As shown in FIG. 5, the air from the air supply fan 7 is sent to each room through the rectification room 12 and the ceiling filter 13.
The exhaust fan 10 discharges the air from the floor to the lower side, forming a downward laminar flow (downflow).

In the coating booth 1, a downward laminar flow is formed in each room for effective ventilation, and paint mist and the like are discharged downward, and the paint mist and the like adhere to the continuously conveyed car body 6. Never.

<Problems to be solved by the invention> In recent years, the demand for one-box cars (van type) has increased, but since one-box cars have a wide roof and a large passenger compartment, there are many painting points in the passenger compartment. . When a one-box car is painted in the conventional painting booth 1, the air from the air supply fan 7 is not sufficiently introduced into the vehicle compartment because the roof is wide, and the paint mist remains in the vehicle compartment. If paint mist is accumulated in the passenger compartment, a place in the painting booth where the ceiling air supply cannot be taken in, a place with a small amount of air supply / exhaust, a place with a poor air supply / exhaust balance (where there is a lateral flow), a place between vehicle bodies, a conveyor speed In places such as late in the year, mist of paint mist after painting inside the vehicle was discharged from the window openings and floated. When the paint mist floats, the paint mist that floats on the front and rear cars adheres to it.If the front and rear cars are of different colors, color skipping defects occur.If the front and rear cars have the same color, the condition of the painted surface is poor. It was

In order to eliminate this drawback, it is conceivable to widen the vehicle body interval and increase the total length of the coating booth 1 or increase the amount of air from the air supply fan 7, but this is disadvantageous in terms of energy saving and space saving. I will end up.

The present invention has been made in view of the above situation, and provides a coating booth capable of removing paint mist accumulated in a vehicle body, thereby preventing the paint mist from floating and adhering color mist or paint mist to other vehicle bodies. It is an object of the present invention to minimize the vehicle body conveyance interval and increase the conveyance speed.

<Means for Solving the Problems> The structure of the present invention for achieving the above-mentioned object is provided on one side of the vehicle body passing portion and at a position facing a window opening opened on one side surface of the vehicle body. A side air supply device that supplies air to the inside of the vehicle body through the window opening on one side of the vehicle body that is provided and conveyed, and a side air supply device that faces the side air supply device and is provided on the other side portion of the vehicle body passage portion. And a side exhaust device for sucking the floating paint mist in the vehicle body discharged from the vehicle body through a window opening opened to the other side surface of the vehicle body and exhausting it to the outside of the coating booth. .

<Operation> During transportation of the vehicle body, air is blown into the vehicle body from the side air supply device toward the window opening on one side surface of the vehicle body, and the paint mist trapped in the vehicle body is discharged from the window opening on the other side surface of the vehicle body. It is forcibly discharged, and the discharged floating paint mist is sucked by the side exhaust device and discharged to the outside of the coating booth.

<Embodiment> FIG. 1 shows a schematic side view of a coating booth according to an embodiment of the present invention, FIG. 2 shows its front surface, and FIG. 3 shows a side surface showing the position of its side air supply / exhaust device. There is. It should be noted that the same members as those of the related art will be denoted by the same reference numerals and redundant description will be omitted.

An air supply chamber 21 for supplying air in the width direction of the conveyed vehicle body 6 is provided on one side of the blowing chamber 3 and the setting chamber 4 which are the vehicle body passing portions. It communicates with the fan 22. The air supply chamber 21 and the air supply fan 22 form a side air supply device. An exhaust chamber 23 is provided on the other side of the blowing chamber 3 and the setting chamber 4 at a position corresponding to the air supply chamber 21 with the transportation line of the vehicle body 6 interposed therebetween, and the exhaust chamber 23 communicates with an exhaust fan 24. . As shown in FIGS. 2 and 3, the position of the air supply chamber 21 is a position corresponding to the window opening 6a opened on one side surface of the vehicle body 6, and the position of the exhaust chamber 23 is the position of the vehicle body 6. It is located at a position corresponding to the window opening 6b opened on the other side surface.

In the coating booth 31 described above, the air from the air supply fan 7 is sent into each room as in the conventional coating booth 1, and is exhausted downward from the floor surface by the exhaust fan 10.

The air from the air supply fan 22 is passed through the air supply chamber 21 to the vehicle body 6
The paint mist 32 that has been sent toward the window opening 6a of the vehicle and is trapped inside the vehicle body 6 is forcibly discharged from the window opening 6b on the exhaust chamber 23 side. The discharged paint mist 32 (floating paint mist) is sucked into the exhaust chamber 23 by the exhaust fan 24 and exhausted to the outside, and the paint mist 32 does not remain in the vehicle body 6.

Therefore, the coating booth 31 described above forms a lateral laminar flow by the air supply fan 22 and the exhaust fan 24, and the vehicle body 6
The paint mist 32 inside can be exhausted, and the paint mist 32 does not stay inside the vehicle body 6.

<Effect of the Invention> The coating booth of the present invention is provided with the side air supply device and the side exhaust device, so that a lateral laminar flow is formed and the paint mist in the vehicle body can be exhausted. As a result, the paint mist will not be trapped inside the vehicle body, and the paint mist will be prevented from being scattered and the paint mist can be prevented from adhering to other vehicle bodies, and the vehicle body transportation interval can be minimized and the transportation speed can be increased. .

[Brief description of drawings]

1 is a schematic side view of a coating booth according to an embodiment of the present invention, FIG. 2 is a front view thereof, FIG. 3 is a side view showing the position of a side air supply / exhaust device thereof, and FIG. FIG. 5 is a schematic side view of the coating booth, and FIG. 5 is a front view thereof. In the drawing, 2 is a preparation room, 3 is a spray room, 4 is a setting room, 6 is a vehicle body, 21 is an air supply room, 22 is an air supply fan, 23 is an exhaust room, 24 is an exhaust fan, 31 is a paint booth, 32 Is a paint mist.

Claims (1)

[Scope of utility model registration request] 1. A coating booth for continuously painting a vehicle body, which is provided on one side of a vehicle body passing portion and at a position facing a window opening formed on one side surface of the vehicle body. A side air supply device that supplies air into the vehicle body from the window opening on one side of the vehicle body that is conveyed and conveyed; and a side air supply device that faces the side air supply device and is provided on the other side portion of the vehicle body passage portion. A coating provided with a side exhaust device for sucking the floating paint mist in the vehicle body discharged from the vehicle body through a window opening opened on the other side surface of the vehicle body and exhausting it to the outside of the coating booth. booth.