JPH06320079A - painting booth - Google Patents

Abstract

(57) [Summary] [Purpose] Only the air-conditioning area in the coating room is air-conditioned.
Reduce air conditioning energy. [Structure] The side wall 31 of the coating booth 21 is attached to the coating booth 3
1 is formed of an outer wall portion 32 facing the outside and an inner wall portion 33 facing the coating chamber 21, and the inner wall portion 33 is divided into a plurality of parts.
Each of the divided inner wall portions 33 is provided with a moving means 36 that allows the inner wall portion 33 to move back and forth with respect to the outer wall portion 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating booth structure in which a coating chamber is air-conditioned, and more particularly to a coating booth structure capable of saving air conditioning energy.

[0002]

2. Description of the Related Art The quality of a painted surface of an automobile body has a great influence on aesthetics. The quality of the painted surface is
It has a great relationship with the coating conditions, and in order to improve the coating quality of the body, it is necessary to sufficiently air-condition the coating chamber and keep the temperature and humidity inside the coating chamber constant.

FIG. 15 shows an example of a coating booth in a conventional coating line for coating a vehicle body. The coating booth 1 is provided with 14 processes, and the coating work using the automatic coating machines 2 to 7 or the like is performed in a specific process. Further, in the coating booth 1, the worker M also checks the coating quality of the vehicle body 9. The total length of the coating booth 1 is L, and the overall width is W.

In the coating booth 1, the temperature,
The supply air whose humidity has been adjusted is supplied into the coating chamber 8 from the entire surface of the ceiling, and the supply air supplied into the coating chamber 8 is discharged to the outside through the floor surface of the coating chamber 8. Thus, in the conventional coating booth 1, the entire volume of the coating chamber is air-conditioned.

16 and 17 show the arrangement of an automatic coating machine and the like in a conventional coating booth. 16 and 1
In 7, the numeral 10 indicates the coating room of the coating booth,
The coating chamber 10 is separated from the outside by a side wall 11.
As shown in FIG. 16, in a coating chamber 10, automatic coating machines 12 and 13 for coating the upper surface side of an automobile body and an automatic coating machine (reciprocator) 1 for coating the side surface of the body 1
4, 15 are arranged. In the coating room 11 of FIG. 17,
Automatic coating machines 14 and 15 for painting the sides of automobile bodies
Besides, a painting robot 16 is arranged.

[0006]

However, as shown in FIG.
In addition, there is a region in the painting chamber of FIG. 17 that does not substantially require air conditioning, and there is a problem that air conditioning energy increases correspondingly. That is, the area requiring air conditioning is only around the body of the automobile, which is the object to be coated, and the areas S ₁ and S ₂ located between the side wall of the coating booth and the back surface of each automatic coating machine are not air-conditioned. Both have almost no effect on the coating quality of the car body.

Techniques for saving energy in the coating booth by recovering the exhaust heat from the coating booth and reusing this exhaust heat are disclosed, for example, in Japanese Patent Laid-Open Nos. 61-242663 and 63-54972. Although known, they do not provide an essential solution for energy saving because they require energy for waste heat recovery.

In view of the above problems, the present invention has an object to provide a coating booth capable of air-conditioning only an area in the coating chamber where air-conditioning is required and capable of significantly reducing air-conditioning energy. To do.

[0009]

A coating booth according to the present invention which meets the above object has a side wall of a coating booth whose interior is air-conditioned, an outer wall portion facing the outside of the coating booth and an inner wall facing the coating chamber. The inner wall portion is divided into a plurality of parts, and each of the divided inner wall portions is provided with a moving means that allows the inner wall portion to move back and forth with respect to the outer wall portion.

[0010]

[Function] In the coating booth configured as described above,
The side wall of the coating booth is composed of an outer wall and an inner wall, and the inner wall is divided into multiple parts, and each divided inner wall can be moved with respect to the outer wall. Accordingly, the position of the inner wall portion can be changed.
That is, the inner wall portion can be moved to a region in the coating chamber where air conditioning is unnecessary, and the width of the coating chamber can be made narrower than in the conventional case. Therefore, the volume in the coating chamber can be reduced, and the air conditioning energy can be reduced accordingly.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a coating booth according to the present invention will be described below with reference to the drawings.

First Embodiment FIGS. 1 to 8 show a first embodiment of the present invention.
Especially, it shows the case where it is applied to the painting of automobile body. In FIGS. 1 and 2, reference numeral 21 indicates a coating booth. As shown in FIG. 2, the coating booth 21 has a coating chamber 22 formed by a ceiling portion 30 and side walls 31.

At the center of the coating chamber 22, a transfer conveyor 25
Is located. Body 20 of the car that is the object to be coated
Are continuously conveyed by the conveyor 25. An automatic coating machine (reciprocator) 1 similar to that shown in FIG. 17 is provided on both sides of the conveyor 25 in the coating chamber 22.
4, 15 and the painting robot 16 are arranged respectively.

Air supply A is supplied from the ceiling portion 30 of the coating chamber 22. The supply air A supplied to the coating chamber 22 is exhausted to the outside via the floor surface F of the coating chamber 22. Air supply A supplied to the coating room 22
Can be blown out from the entire surface of the ceiling portion 30. In the coating room 22, air supply A blown from the ceiling 30
Is fully air-conditioned by.

The side wall 31 of the coating booth 21 has an outer wall portion 32.
And an inner wall portion 33. The outer wall portion 32 is arranged so as to face the outside of the coating booth 21,
The upper end is fixed to the ceiling 30 and the lower end is fixed to the floor surface F. The inner wall portion 33 is divided into a plurality of pieces in the carrying direction of the body 20. Each inner wall portion 33 has a frame 33a.
And a side panel 33b.

Immediately below the ceiling 30 of the coating booth 21,
A rail 41 extending in the horizontal direction is provided. The end portion of the rail 41 is joined to the frame 30a of the ceiling portion 30. Each inner wall portion 33 is suspended on a rail 41 via wheels 36 as a moving means rotatably attached to a bracket 35. Thereby, each inner wall portion 33
Can be moved back and forth individually with respect to the outer wall portion 32.

A filter 23 is provided on the ceiling portion 30. The supply air A is supplied into the coating chamber 22 via the filter 23. A plurality of shutters 51 are arranged immediately below the filter 23 on the ceiling 30. The shutter 51 is arranged between the reinforcing members 30b of the ceiling portion 30. Each shutter 51 is opened and closed by the movement of the inner wall portion 33.

As shown in FIG. 4, the shutter 51 includes an idle cam 52, an opening / closing lever 53, an arm 54, a shaft 55, a blade 56, a joining plate 57, and a holding member 58.
It consists of The holding member 58 is joined to the reinforcing member 30b of the ceiling portion 21. The shaft 55 is rotatably held by a holding member 58. A blade 56 is attached to the shaft 55 via a joint plate 57. An arm 54 is attached to the end of the shaft 55.

An ebay cam 52 fixed to the holding member 58 side is provided near the arm 54. The arm 54 is formed with a long hole 54a. The Evaid cam 52 is formed with a substantially U-shaped guide groove 52a. An opening / closing lever 53 is coated on the Evaido cam 52. The opening / closing lever 53 has two holding pins 53a, and the two holding pins 53a are movably fitted in the guide grooves 52a of the ebay cam 52. A connecting pin 53b is fixed to the opening / closing lever 53, and the connecting pin 53b is movably fitted in the elongated hole 54a of the arm 54.

5 and 6 show the lower portion of the inner wall portion 33. A clamp 61 as a fixing means is provided below the inner wall portion 33. In the clamp 61, the shaft portion 61b is moved in the axial direction by the swing of the lever 61a. A holding member 62 extending in the horizontal direction is attached to the shaft portion 61b of the clamp 61 via a connecting member 64. A seal member 63 made of urethane rubber or the like is joined to the lower surface of the holding member 62.

The floor surface F of the coating chamber 22 is composed of a saw blade 25 through which the supply air A can pass. Clamp 61
When the lever 61a is swung, the holding member 62 descends and the seal member 63 comes into close contact with the surface of the sludge 25. The inner wall portion 33 is substantially fixed to the floor surface F when the seal member 63 is in close contact with the drainboard 25.

Next, the operation of the first embodiment will be described. When the automatic coating machines 14 and 15 and the coating robot 16 are newly arranged in the coating chamber 22, the inner wall portions 33 are moved based on the arrangement of these devices.
Since each inner wall portion 33 can be moved individually with respect to the outer wall portion 32, each inner wall portion 33 is automatically moved to the automatic coating machine 14, 15.
Also, the rear surface of the painting robot 16 can be approached.

Since each inner wall portion 33 is hung on the rail 41 via the wheels 36, the inner wall portion 33 can be moved by simply pressing the inner wall portion 33 horizontally. Further, when the inner wall portion 33 moves, the wheel 36 and the opening / closing lever 53 of the shutter 51 come into contact with each other, so that the opening / closing lever 53 can be moved. When the opening / closing lever 53 moves, the arm 54 swings around the shaft 55, and the angle of the blade 56 attached to the shaft 55 changes.

When the opening / closing lever 53 moves to the other side of the guide groove 52a, one of the holding pins 53a of the opening / closing lever 53 enters the rising portion of the guide groove 52a by the pressing force of the wheel 36, and the opening / closing lever 53 moves to the wheel. It swings in the moving direction of 36. That is, the rising portion of the guide groove 52a allows the lever portion 53c of the opening / closing lever 53 to escape upward. When the wheel 36 further advances, the open / close lever 53 returns to its original posture by its own weight, and the contact between the wheel 36 and the open / close lever 53 is completed. In this state, the blade 56 of the shutter 51 is horizontal, and the supply of the supply air A into the coating chamber 22 at this portion is blocked.

When the shutter 51 is opened, the inner wall portion 3
By moving 3 towards the outer wall 32, the wheels 3
6 and the opening / closing lever 53 can be brought into contact with each other again, and the shaft 55 can be rotated in the opposite direction by swinging the arm 54. Therefore, the angle of the blade 56 attached to the shaft 55 changes, and the coating chamber 22 for the air supply A changes.
It becomes possible to supply the inside.

When the inner wall 33 moves to a predetermined position,
The lever 61a of the clamp 61 is pushed up, and the holding member 62 is pressed against the floor surface F of the coating chamber 22. Since the seal member 63 is joined to the lower surface of the holding member 62, the inner wall portion 33 can be brought into close contact with the floor surface F. As a result, the inner wall portion 33 becomes immovable with respect to the outer wall portion 32 and is securely fixed to the floor surface F. In addition, the inner wall portion 33
Leakage of the supply air A from the lower part of is also prevented.

FIG. 7 shows a case where the automatic coating machines 12, 13, 14, and 15 shown in FIG. 16 are arranged in the coating chamber 22. As shown in FIG. 7, since the inner wall portion 33 can be moved with respect to the outer wall portion 32, each inner wall portion 33 can be moved to a portion where air conditioning is unnecessary. Therefore, the volume in the coating chamber 21 is reduced by the amount of movement of each inner wall portion 33, and the air conditioning energy can be reduced.

FIG. 8 shows a case where the present invention is applied to the conventional vehicle body painting line shown in FIG. Figure 8
As shown in FIG. 5, since the inner wall portion 33 is aligned with the arrangement of the automatic coating machine or the like, the width of the coating chamber 22 can be reduced to W ₁ in a specific area. As described above, only the area excluding the area B where the air conditioning is unnecessary can be air-conditioned, and the air-conditioning energy can be significantly reduced compared to the conventional case.

Second Embodiment FIGS. 9 and 10 show a second embodiment of the present invention. The second embodiment is different from the first embodiment only in the structure for shutting off the air supply into the coating chamber, and the other parts are the first.
Since this embodiment is similar to the embodiment, the corresponding parts are denoted by the same reference numerals as those in the first embodiment, and the description of the corresponding parts is omitted. Only different parts will be described. The same applies to other embodiments described later.

Above the rail 41, a box-shaped storage section 71 is provided.
Are formed. A large number of shielding plates 7 are provided in the storage section 71.
2 is stored. Each shield plate 72 is foldably connected by a hinge 73. The storage portion 71 located at the outlet of the storage portion 71 is connected to the bracket 35 that suspends the inner wall portion 33. The shield plate 72 of the storage portion 71 is drawn out from the storage portion 71 by moving the inner wall portion 33 in the arrow E direction. When the inner wall portion 33 is moved in the direction opposite to the arrow E, the shield plate 7
2 is automatically stored in the storage portion 71.

In the second embodiment thus constructed, the inner wall portion 33 is formed based on the arrangement of each device in the coating chamber 22.
When is moved, each shield plate 72 stored in the storage portion 71 is pulled out from the storage portion 71. Therefore, the portion right below the filter 23 is shielded by the shield plate 72, and the supply of the supply air A into the coating chamber 22 is blocked. Therefore, the air supply A is not supplied to unnecessary portions in the coating chamber 22, and the air conditioning energy can be reduced.

Third Embodiment FIGS. 11 and 12 show a third embodiment of the present invention. In the first and second embodiments, the inner wall portion 3
Although the shutter 51 and the shield plate 72 are driven by the movement of the block 34 of No. 3, in this embodiment, the shield plate 72 is simply placed on the upper surface of the rail 41. Also in the case of this embodiment, the first embodiment and the second embodiment
Similar to the embodiment, the shield plate 72 prevents the supply of the air supply A into the coating chamber 22.

Fourth Embodiment FIGS. 13 and 14 show a fourth embodiment of the present invention. In each of the above-described embodiments, the inner wall portion 33 is the rail 4
Although the structure is such that it is suspended at 1, the inner wall portions 81 move on the floor surface F in this embodiment.
Unlike the first embodiment, the inner wall portion 81 is formed in a rectangular parallelepiped shape instead of a plate shape. Wheels 82 are attached to the lower surface of the inner wall portion 81 as moving means. A rail 83 is laid on the floor F of the coating room 22.

The block 81 is mounted on a rail 83 via wheels 82. The rail 83 extends in a direction orthogonal to the outer wall portion 32. The inner wall portion 81 can move back and forth with respect to the outer wall portion 32. A holding member 62, which is pressed against the floor surface F by the clamp 61, is attached to the lower end portion of the inner wall portion 81 as in the first embodiment. The inner wall portion 81 on one side and the inner wall portion 81 adjacent to the inner wall portion 81 on the side surface
They are arranged with a slight gap so that 1b does not interfere.

In the fourth embodiment thus constructed, both the front surface 81a and the side surface 81b can be used as the inner wall portion 81, so that the fixed inner wall portion 34 is provided in addition to the inner wall portion 33 as shown in FIG. Eliminates the need to add an inner wall 8 easily
It is possible to match the position of 1 with the arrangement of each device in the coating chamber 22.

[0036]

According to the present invention, the side wall of the coating booth is
It is composed of an outer wall portion facing the outside of the coating booth and an inner wall portion facing the coating chamber.The inner wall portion is divided into a plurality of parts, and the inner wall portion can be individually moved back and forth with respect to the outer wall portion. Since the moving means is provided, the position of the inner wall portion can be changed according to the arrangement of the coating machine and the like in the coating chamber, and the width of the coating chamber can be narrowed.

Therefore, the volume in the coating chamber can be made smaller than before, and the air conditioning energy can be greatly reduced.

[Brief description of drawings]

FIG. 1 is a partial plan view of a coating booth according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is a partial front view of the vicinity of the ceiling of the coating booth shown in FIG.

FIG. 4 is a front view showing the structure of the shutter in FIG.

5 is a front view of a block lower portion of the inner wall portion in FIG. 1. FIG.

6 is a cross-sectional view taken along the line YY of FIG.

FIG. 7 is a partial plan view showing a modified example of FIG.

FIG. 8 is a schematic plan view of a coating line to which the present invention is applied.

FIG. 9 is a partial front view of the vicinity of the ceiling of the coating booth according to the second embodiment of the present invention.

10 is a front view showing a state where the inner wall portion in FIG. 9 is moved.

FIG. 11 is a partial front view of the vicinity of the ceiling of the coating booth according to the third embodiment of the present invention.

12 is a front view showing a state where the inner wall portion in FIG. 11 is moved.

FIG. 13 is a partial front view of a coating booth according to a fourth embodiment of the present invention.

FIG. 14 is a front view of FIG.

FIG. 15 is a schematic plan view of a conventional vehicle body painting line.

FIG. 16 is a plan view showing an arrangement configuration of an automatic coating machine in a coating chamber in a conventional coating booth.

FIG. 17 is a plan view showing another arrangement configuration of the automatic coating machine in the coating chamber in the conventional coating booth.

[Explanation of symbols] 12 automatic coating machine 13 automatic coating machine 14 automatic coating machine 15 automatic coating machine 16 coating robot 20 object to be coated 21 coating booth 21 coating chamber 31 side wall 32 outer wall portion 33 inner wall portion 36 moving means 51 shutter 61 fixing means 72 Shielding plate 81 Inner wall part 82 Moving means

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadayuki Matsumoto 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Corporation (72) Inventor Keiichi Fujiwara 1, Toyota Town, Aichi Prefecture, Toyota Motor Corporation

Claims (1)

[Claims] 1. A side wall of a coating booth whose interior is air-conditioned comprises an outer wall portion facing the outside of the coating booth and an inner wall portion facing the coating chamber, and the inner wall portion is divided into a plurality of parts. A coating booth, wherein each of the divided inner wall portions is provided with a moving means that allows the inner wall portion to move forward and backward with respect to the outer wall portion.