JP2923714B2 - painting booth - Google Patents

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 for coating a material to be coated.

[0002]

2. Description of the Related Art A conventional painting booth is disclosed in
As can be seen in Japanese Patent Application Laid-Open No. 68566/1989, during the painting work, it is necessary to prevent the occurrence of fire due to the ignition caused by the paint mist or the evaporating organic solvent being filled in the painting booth, and to maintain the health of workers. Then, 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 exhausted from the bottom together with the coating mist and the evaporated organic solvent, etc. It is difficult to immediately exhaust the solvent and the like, and as a result, some paint mist, an organic solvent and the like are present in the coating booth. For this reason, the worker in the painting booth sucks paint mist, evaporated organic solvent, and the like, which is not preferable for health.

[0004] Further, the painting operation is so-called typical 3K, which is dangerous, severe, and dirty, and the operator must work with a dust-proof mask, which results in a very harsh working environment especially in summer. .

[0005]

The coating booth according to the first aspect of the present invention is configured so that clean air is supplied to the inside, and the clean air is exhausted to the outside together with the coating mist, the organic solvent and the like by an exhaust fan. In the painting booth,
Inside the painting booth, there is provided a box-shaped working room in which workers can enter and leave, and the working room has a double wall structure having a peripheral wall with a space therein, and a painting work in place. An opening is formed, and clean air supplied to the space through a supply duct from outside the coating booth is
After being supplied into the work chamber through a clean air pumping section formed on the inner wall of the work chamber, the exhaust gas is exhausted into the painting booth through the opening, and together with the clean air supplied into the painting booth, It is configured to be exhausted to the outside.

According to a second aspect of the present invention, there is provided a coating booth configured to supply clean air to the inside and exhaust the clean air to the outside together with a coating mist and an evaporated organic solvent by an exhaust fan. Inside the painting booth, a box-shaped working room in which workers can enter and leave is provided so as to be able to move horizontally or vertically, or to pivot freely.
While the clean air is supplied, an opening for a painting operation is formed in an appropriate place, and the clean air supplied to the work chamber is exhausted into the painting booth through the opening. .

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

[0008]

[Function] In addition to supplying clean air to the inside of the painting booth and exhausting it to the outside, clean air is also supplied to the work room provided in the painting booth and the inside of the painting booth from the opening for painting work in the work room. Since the exhaust air is exhausted, paint mist and evaporated organic solvent do not enter the work room where the worker enters, and the paint mist and evaporated organic solvent do not impair the worker's health. Also becomes unnecessary

[0009]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of a painting booth according to the present invention.

In FIG. 1, reference numeral 1 denotes a painting booth,
A clean air supply chamber 11 is formed at the top of the painting booth 1, and an exhaust chamber 15 is formed at the bottom of the painting 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, and clean air is supplied to the clean air supply chamber 11 through the supply duct 12a by the blower fan 12. Supply. Further, a plurality of through holes 13 communicating with the painting 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 passes through the painting booth 13 through the through holes 13. 1 is supplied.

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

A work room 2 is provided in the painting booth 1.

The work chamber 2 is formed in a box shape to which a worker can enter and exit, and has an opening 21 for painting work formed on a front surface thereof.

The working chamber 2 has a space 22 inside.
Is formed in a double wall structure having
, Clean air is supplied via a blower duct 24 by a blower 23 provided outside the coating booth 1.

On the inner wall of the working chamber 2, there is formed a clean air pumping section 25 comprising a plurality of through holes.
Is discharged into the working chamber 2 through the clean air pumping section 25.

The discharge amount of the clean air from the clean air pressurizing section 25 is set so that the air pressure in the work room 2 is higher than the air pressure in the painting booth 1, whereby the clean air is supplied into the work room 2. The cleaned clean air is exhausted from the opening 21 into the coating booth 1, and no air enters the working room 2 from the coating booth 1 side.

The air duct 24 is provided in a work chamber 2 to be described later.
Is configured to have a bellows shape having flexibility, for example, so as to be able to follow the movement of the work room 2, and a connection portion between the work chamber 2 and the wall surface of the painting booth 1 is rotatably connected.

Further, a paint spray gun 43 connected via a hose 42 to a paint tank 41 provided outside the paint booth 1 is provided in the work room 2.

Here, the working chamber 2 constructed as described above is used.
Is provided movably on a rail 52 laid on the bottom surface of the painting booth 1. The inside of the painting booth 1 is moved along the rail 52 by the drive of a driving motor 51 provided at the bottom of the work chamber 2. Can move horizontally.

A movable hanger 6 is provided in front of the work chamber 2 for carrying the workpiece A into and out of the coating booth 1 while suspending the workpiece A. Accordingly, the workpiece A is carried into the painting booth 1 by the movable hanger 6 and arranged at a position facing the opening 21 of the work room 2, and is carried out of the painting booth 1 when painting is completed.

The reference numeral 53 in FIG.
The operation panel is provided in the inside and operates the horizontal movement and the like of the work room 2.

Next, a case where a painting operation is performed by the painting booth 1 configured as described above will be described.

In the painting operation, an operator enters the work room 2,
The work is performed by spraying paint from the inside of the work chamber 2 through the opening 21 onto the work material A disposed in front of the work chamber 2 through the opening 21 while moving the work chamber 2 in the horizontal direction as needed.

At the time of this painting work, clean air is supplied into the painting booth 1 through the supply duct 12a and the clean air supply chamber 11 by the blower fan 12, and the air in the painting booth 1 is exhausted by the exhaust fan 16. Room 15,
Since the exhaust gas is exhausted to the outside through the exhaust duct 16a, paint mist, evaporated organic solvent, and the like generated by the painting work are exhausted from the interior of the painting booth 1 to the outside through the exhaust chamber 15 and the exhaust duct 16, and filled in the painting booth 1. Nothing.

Further, clean air is supplied from a blower 23 through a blower duct 24 into the work room 2 in which the worker is present, and the clean air is supplied to the opening 21 of the work room 2.
From the paint booth 1, the paint mist and the evaporated organic solvent do not enter the work room 2 where the worker is located, and the health of the worker is impaired by the paint mist and the evaporated organic solvent. This eliminates the need for a worker to wear a dust mask and allows the worker to work comfortably.

In this embodiment, the work chamber 2 is described as being movable in the horizontal direction. However, the work chamber 2 may be fixed, and may be moved up and down or pivoted as required. Is also good.

Further, a temperature control device is connected to the blower 23 to supply warm air into the work room 2 in winter and cool air into the work room 2 in summer to further work. It can be done comfortably.

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

In FIGS. 2 to 4, reference numeral 7 denotes a box-shaped fixed duct provided along the moving direction of the work chamber 2. The fixed duct 7 is connected to the blower 8 and the blow duct 7
1 is connected to the space 22 of the work room 2.

An opening 7a is formed in the upper surface of the fixed duct 7, and a base end of the air duct 71 is disposed in the fixed duct 7 through the opening 7a. At the base end of the air duct 71, a flange 72 bent outward in a hook shape is provided.
The flange 72 is provided with a traveling roller 75 that can roll along a rail 73 provided on the left and right in the fixed duct 71.

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

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

By configuring the fixed duct 7 and the air duct 71 as described above, when the work chamber 2 is moved, the air duct 71 is moved by the traveling rollers 75 along the opening 7a of the fixed duct 7 with this movement. As it moves, the closing belt 78 also moves following the movement of the air duct 71. Thereby, regardless of the movement of the work room 2, the clean air can always be supplied to the space 22 of the work room 2 through the fixed duct 7 and the blow duct 71 by the blower 8.

[0036]

As described above, according to the present invention, the clean air is supplied to the inside of the painting booth and exhausted to the outside, and the clean air is also supplied to the work room provided in the painting booth. Since the exhaust air is exhausted into the painting booth from the opening for painting work in the work room and is exhausted to the outside of the painting booth together with the clean air supplied to the interior of the painting booth, the paint in the work room where the worker is present is The mist and evaporated organic solvent do not penetrate, and the paint mist and the evaporated organic solvent do not impair the health of the worker, which is safe for health.The worker does not need to wear a dust mask. Can work comfortably.

[Brief description of the 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 longitudinal sectional side view showing another connection structure between a working room and a blower for supplying clean air into the working room.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a sectional view taken along line BB in FIG. 2;

[Explanation of symbols]

 1 painting booth 2 working room 21 opening

Continuation of front page (56) References JP-A-53-85838 (JP, A) JP-A-4-11964 (JP, A) JP-A-3-16671 (JP, A) JP-A-1-136900 (JP) JP-A-4-126563 (JP, A) JP-A-56-28674 (JP, A) JP-A-61-183163 (JP, U) JP-A-64-51131 (JP, U) (58) Field surveyed (Int.Cl. ⁶ , DB name) B05B 15/12

Claims (3)

(57) [Claims] 1. A coating booth configured to supply clean air to the inside and exhaust the clean air to the outside together with a coating mist and an evaporating organic solvent by an exhaust fan. Is provided with a box-shaped work chamber in which the peripheral wall is formed to have a space inside.
It has a double wall structure with
An industrial opening is formed and supplied from outside the painting booth.
Clean air supplied to the space through the supply duct,
The work is passed through a clean air pumping section formed on the inner wall of the work room.
After being supplied to the work room, the painting booth
Clean air exhausted into the paint booth
And a paint booth characterized by being configured to be exhausted outside the paint booth. (2) supplying clean air to the inside,
Exhaust fan with paint mist and evaporated organic solvent
Paint booth configured to exhaust by
In the painting booth, there is a box-shaped work
The chamber is provided so that it can move horizontally,
The working room is supplied with clean air and
An opening for painting work is formed at the place and supplied to the work room.
Clean air is exhausted into the painting booth through the opening.
A painting booth , characterized in that it is configured to be painted. 3. The coating booth according to claim 1, wherein the temperature of the clean air supplied to the working chamber is adjusted by a temperature adjusting device.