JPH0691210A - Coating booth - Google Patents

Abstract

PURPOSE:To provide a coating booth safe in the meaning of health, free from any adverse effect due to coating mist and organic solvent vapor on an operator. CONSTITUTION:This coating booth 1 is designed so that clean air is supplied to the interior and is exhausted to the exterior together with coating mist and organic solvent vapor through an exhaust fan. Inside the coating booth 1, a box-type operating chamber 2 through which the operator can enter and get out freely is provided, and into the operating chamber 2, clean air is supplied and an opening 21 for coating operation is provided at an appropriate place. The clean air supplied into the operating chamber 2 is exhausted into the coating booth 1 through the opening 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating booth used when coating a material to be coated.

[0002]

2. Description of the Related Art A conventional coating booth is disclosed in, for example, Japanese Patent Laid-Open No. 62-62.
As disclosed in Japanese Patent Laid-Open No. -68566, at the time of coating work, the fire is prevented from being caused by ignition due to the paint mist or the evaporating organic solvent being filled in the paint booth, and the health of workers is maintained. The clean air is supplied from the top of the coating booth, and the clean air is exhausted from the bottom together with the coating mist and the evaporated organic solvent by an exhaust fan.

[0003]

However, in the above-mentioned conventional coating booth, although clean air is supplied into the coating booth and is exhausted from the bottom together with the coating mist and the vaporized organic solvent, the paint mist and the vaporized organic solvent are exhausted during the coating operation. It is difficult to instantly exhaust the solvent and the like, and as a result, some paint mist, evaporated organic solvent, and the like remain in the coating booth. For this reason, the worker in the coating booth inhales the paint mist, the organic solvent vapor, etc., which is unfavorable for health.

Further, the painting work is a so-called typical 3K which is dangerous, severe and dirty, and the worker has to wear a dust mask to work, which results in a very harsh working environment especially in summer. .

[0005]

The coating booth of the present invention comprises:
In a coating booth configured to supply clean air to the inside and to exhaust the clean air to the outside together with a coating mist and an evaporated organic solvent by an exhaust fan, a box into which a worker can freely move in and out of the coating booth. -Shaped work chamber is provided, and clean air is supplied to the work chamber and an opening for painting work is formed at an appropriate place, and the clean air supplied to the work chamber is painted through the opening. It is configured to be exhausted into the booth.

Further, the working chamber is constructed so as to be horizontally movable, vertically movable, or rotatable within the coating booth.

Further, the temperature of the clean air supplied to the working chamber is adjusted by a temperature adjusting device.

[0008]

[Function] Clean air is supplied to the inside of the coating booth and exhausted to the outside, and clean air is also supplied to the working chamber provided in the coating booth to enter the inside of the coating booth from the opening for painting work in the working chamber. Since it is exhausted, paint mist and evaporated organic solvent, etc. do not enter the work room where the worker is in, and the worker's health is not damaged by these paint mist and evaporated organic solvent, etc. Becomes unnecessary

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic structure of a coating booth according to the present invention.

In FIG. 1, 1 is a coating booth,
A clean air supply chamber 11 is formed at the top of the coating booth 1, and an exhaust chamber 15 is formed at the bottom of the coating booth 1.

A supply duct 12a connected to a blower fan 12 is connected to the upper portion of the clean air supply chamber 11. The blower fan 12 supplies clean air to the clean air supply chamber 11 via the supply duct 12a. Supply. Further, a plurality of through holes 13 communicating with the coating booth 1 are formed at the bottom of the clean air supply chamber 11, and the clean air supplied to the clean air supply chamber 11 is supplied from the through holes 13 to the coating booth. Supplied within 1.

An exhaust duct 16a connected to an exhaust fan 16 is continuously provided in the exhaust chamber 15, and a plurality of exhaust ducts 15a communicating with the coating booth 1 are provided at an upper portion of the exhaust chamber 15 (a bottom portion of the coating booth 1). Through holes 17 are formed, and the air in the coating booth 1 is sucked into the exhaust chamber 15 through the through holes 17 by the exhaust fan and is exhausted to the outside through the exhaust duct 16a.

A working room 2 is installed in the coating booth 1.

The work chamber 2 is formed in a box shape that allows workers to move in and out, and an opening 21 for painting work is formed on the front surface thereof.

The working chamber 2 has a space 22 inside.
It has a double wall structure having a space 22
A clean air is supplied from a blower 23 provided outside the coating booth 1 through a blow duct 24.

On the inner wall of the working chamber 2, there is formed a clean air pressure-feeding portion 25 comprising a plurality of through holes, and the space portion 22 is provided.
The clean air supplied to the work chamber 2 is discharged into the working chamber 2 through the clean air pressure feeding unit 25.

The amount of clean air discharged from the clean air pumping unit 25 is set so that the atmospheric pressure in the working chamber 2 is higher than the atmospheric pressure in the coating booth 1, and thereby the clean air is supplied into the working chamber 2. The generated clean air is exhausted into the coating booth 1 through the opening 21, and the air does not enter the working chamber 2 from the coating booth 1 side.

The blower duct 24 has a working chamber 2 which will be described later.
In order to be able to follow the movement of the work chamber 2, the work chamber 2 and the wall portion of the coating booth 1 are rotatably connected to each other while being configured in a bellows shape having flexibility.

Further, in the working chamber 2, a paint spray gun 43 connected to a paint tank 41 installed outside the paint booth 1 via a hose 42 is installed.

Here, the working chamber 2 constructed in this way
Is movably provided on a rail 52 laid on the bottom surface of the coating booth 1, and a drive motor 51 provided at the bottom of the working chamber 2 drives the inside of the coating booth 1 along the rail 52. It can be moved horizontally.

In front of the working chamber 2, there is provided a moving hanger 6 for loading and unloading the material A to be coated into and out of the coating booth 1. Therefore, the material A to be coated is carried into the coating booth 1 by the moving hanger 6 and is arranged at a position facing the opening 21 of the working chamber 2, and is carried out of the coating booth 1 when the coating is completed.

In addition, reference numeral 53 in FIG.
It is an operation panel that is provided inside and that operates the horizontal movement of the working chamber 2.

Next, the case where the coating work is performed by the coating booth 1 configured as described above will be described.

For the painting work, the worker enters the work room 2
This is performed by spraying the paint from the inside of the work chamber 2 through the opening 21 onto the material A to be coated arranged in front by the coating spray gun 43 while moving the work chamber 2 in the horizontal direction as required.

During this coating operation, clean air is supplied into the coating booth 1 by the blower fan 12 through the supply duct 12a and the clean air supply chamber 11, and the exhaust fan 16 exhausts the air in the coating booth 1. Chamber 15,
Since the air is exhausted to the outside through the exhaust duct 16a, the paint mist and the evaporated organic solvent generated by the coating work are exhausted from the inside of the coating booth 1 to the outside through the exhaust chamber 15 and the exhaust duct 16 to fill the inside of the coating booth 1. Never.

Further, clean air is also supplied into the working chamber 2 in which a worker is housed by a blower 23 through a blower duct 24, and the clean air is provided in the opening 21 of the working chamber 2.
Since it is exhausted from the paint booth 1 into the coating booth 1, the paint mist and the organic solvent vapor do not enter the work room 2 where the worker is present, and the health of the worker is impaired by the paint mist and the organic solvent vapor. It is not necessary for the worker to wear a dust mask and can work comfortably.

Although the working chamber 2 is configured to be movable in the horizontal direction in this example, the working chamber 2 may be fixed, and may be vertically moved or swung as required. Is also good.

Further, by connecting a temperature adjusting device to the blower 23 to supply warm air into the work room 2 in the winter season and cool air into the work room 2 in the summer season, the worker further works. You can do it comfortably.

2 to 4 show a connection structure between the work chamber 2 and a blower 23 for supplying clean air into the work chamber 2 when the horizontal movement amount of the work chamber 2 is large (movable distance is long). Shows. In the description of this connection structure, the same members as those in the above-mentioned embodiment are designated by the same reference numerals and the description thereof will be omitted.

2 to 4, reference numeral 7 denotes a box-shaped fixed duct provided along the moving direction of the working chamber 2. The fixed duct 7 is connected to the blower 8 and the blower duct 7 is provided.
It is connected to the space 22 of the working chamber 2 via 1.

An opening 7a is formed on the upper surface of the fixed duct 7, and the base end of the blower duct 71 is arranged in the fixed duct 7 through the opening 7a. At the base end of the air duct 71, there is a flange 72 bent outward in a hook shape.
The flange 72 is provided with a traveling roller 75 which is rollable along rails 73 provided on the left and right in the fixed duct 71.

Further, as shown in FIG. 3, both ends of the closing belt 78 wound around the pulleys 76 and 77 are provided in front of and behind the moving direction of the flange 72 of the blower duct 71.
The closing belt 78 closes the opening 7a formed for the movement of the blower duct 71 from below and prevents the clean air supplied from the blower 8 to the fixed duct 7 from leaking from the opening 7a.

The reference numeral 79 in FIGS. 2 to 4 is
It is a support roller that supports the closing belt 78.

By constructing the fixed duct 7 and the blower duct 71 as described above, when the working chamber 2 is moved, the blower duct 71 is moved along with the movement by the traveling rollers 75 along the opening 7a of the fixed duct 7. While moving, the closing belt 78 also moves following the movement of the blower duct 71. Thus, regardless of the movement of the work chamber 2, the blower 8 can constantly supply clean air to the space 22 of the work chamber 2 through the fixed duct 7 and the blow duct 71.

[0036]

As described above, according to the present invention, the clean air is supplied to the inside of the coating booth and exhausted to the outside, and the clean air is also supplied to the working chamber provided in the coating booth. Since the air is exhausted into the coating booth from the painting work opening in the work room, paint mist and evaporated organic solvent, etc. do not enter the work room where there are workers. The health of the worker is not impaired and the health is safe, and the worker does not need to wear a dust mask, and can work comfortably.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a schematic configuration of a coating booth according to the present invention.

FIG. 2 is an enlarged vertical cross-sectional side view showing another connection structure between a work chamber and a blower that supplies clean air into the work chamber.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a sectional view taken along line BB in FIG.

[Explanation of symbols]

 1 Painting booth 2 Working room 21 Opening

Claims (3)

[Claims] 1. A coating booth configured to supply clean air to the inside and to exhaust the clean air together with a coating mist, an evaporated organic solvent, etc. by an exhaust fan, wherein a worker is provided in the coating booth. Is provided with a box-shaped working chamber that can be freely moved in and out, and the working chamber is supplied with clean air, and an opening for painting work is formed at an appropriate place, and the clean air fed into the working chamber is opened. The coating booth is characterized by being exhausted into the coating booth through the section. 2. The coating booth according to claim 1, wherein the working chamber is configured so as to be horizontally movable, vertically movable, or rotatable within the coating booth. 3. The coating booth according to claim 1 or 2, wherein the temperature of the clean air supplied to the working chamber is adjusted by a temperature adjusting device.