JP2652838B2 - Exhaust method of paint drying room - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for exhausting a coating and drying chamber for applying a correction coating or the like to an object such as a vehicle and performing a drying process after the coating.

[0002]

2. Description of the Related Art In a repair shop of a vehicle, etc., in order to correct the damage of the painting due to an accident, a modified painting or a whole painting is performed, and after this painting, a part of the factory is dried. Often equipped with equipment with a paint drying room. Conventionally, various types of such paint drying chambers have been proposed. One of them is to connect an air supply duct to a ceiling air supply chamber portion of the paint drying chamber, and to provide a coating under the floor of the drying chamber. An exhaust duct is communicated with the portion, and at the time of painting, a desired paint is sprayed on a vehicle (object) carried into the room to apply the paint, while at the time of drying, the vehicle is supplied from the air supply duct to the inside of the paint drying chamber. 2. Description of the Related Art There is provided a paint drying chamber that sends hot air to a ceiling portion and exhausts air from an exhaust duct below the floor to dry a painted surface of a vehicle.

[0003] The supply of hot air to the coating and drying chamber is as follows.
A hot air generator (apparatus) ignites a combustion burner and burns fuel (oil, gas, etc.) to obtain fuel.
The air volume at the time of painting is reduced to about 1/2 to 1/3 to reduce the temperature, and the room temperature is raised in a short time.

[0004]

However, in the method of sending hot air from the ceiling air supply chamber portion of the paint drying room connected to the air supply duct and exhausting the hot air from the exhaust duct below the floor, the method described above is not effective. It is extremely difficult to uniformly heat and dry each part of the vehicle carried in and installed in the factory. For example,
In the case of a vehicle, there is a considerable height in the vertical direction,
Some components are horizontal and some are vertical. For example, the outer surfaces of the roof, bonnet, trunk cover, etc. are high and horizontal, so they are easily heated by hot air,
Although these parts rise to the drying temperature in a relatively short time, the sides and doors of the body are low and vertical or inclined, so even with the same amount of hot air,
This is because it is difficult to heat and a temperature difference occurs. In particular, at the lower part of the door side, the temperature is hard to rise due to the increase in heat capacity due to the inner lining and various accessories and the heat insulation effect due to the presence of these members, and the temperature difference with other parts is large. It was easy to become.

In a state where such a temperature difference occurs,
It takes time to raise the temperature of the lower part of the side of the door where the temperature is difficult to rise to the drying temperature, and there is a problem that workability is deteriorated. In this case, there is a problem that not only the workability is deteriorated but also the roof portion, which is a portion where the temperature is easily increased, is excessively heated. For this reason,
Various methods have been proposed to eliminate the above-mentioned temperature difference, but all of them have been insufficient.

The present invention has been made in view of such conventional circumstances, and appropriately controls the exhaust mode on the floor side of an exhaust duct to cover the entire surface of an object carried into and installed in a coating and drying chamber. The purpose of the present invention is to provide a method of exhausting the paint drying chamber which aims to make the temperature rise uniform and shorten the time.

[0007]

According to a first aspect of the present invention, there is provided:
The method of exhausting the paint drying chamber is such that an air supply duct is communicated with a ceiling air supply chamber portion of the paint drying chamber, and an exhaust duct is communicated with an underfloor portion of the paint drying chamber, and installed on the floor of the paint drying chamber. With respect to the target object, a coating is performed in which hot air is sent from the air supply duct to a ceiling portion in the coating drying chamber and exhausted from the exhaust duct under the floor to dry the coated surface of the target object. in the drying chamber, the object to be
At the opening of the pit below the floor where the object is installed,
A top plate with a floor suction port formed and slidably assembled to the top plate
And the opening corresponding to the floor suction port is shaped
A large number of open / close floor blocks consisting of slide plates
Laying and sliding the slide plate, the floor of the top plate
Open and close the floor suction port to freely open the entire floor or a part of the floor.
The method is characterized in that the user is allowed to speak.

The exhaust of the paint drying chamber according to claim 2 of the present invention.
The method is to connect an air supply duct to the ceiling air supply room of the paint drying room.
And the exhaust duct is placed under the floor of the paint drying room.
And placed on the floor in the paint drying room.
From the air supply duct to the object, the paint drying room
The hot air is sent out to the ceiling inside and the exhaust
Exhaust air from the container to dry the painted surface of the object.
In the painted drying room, the object is installed.
Center of the pit opening under the floor
Laying a normally open floor block consisting of a top plate with a suction port
Of the pit around the normally open floor block
A top plate having a plurality of floor suction ports formed in the opening,
It is slidably built into the top plate and fits into the floor suction port.
A large number of slide plates with corresponding openings
The opening and closing floor block is laid, and the center of the floor is
The lock is always open while the floor is normally open.
Around the rack, the sliding of the slide plate causes the ceiling
Open and close the floor suction port on the
There is a method to make it open.

The exhaust of the paint drying chamber according to claim 3 of the present invention.
The method comprises the step of opening and closing the floor block or the opening and closing floor block.
A contractor provided with a grid-like cover on the upper surface of the normally open floor block
A method according to claim 1 or 2.

The exhaust of the paint drying chamber according to claim 4 of the present invention.
The method is to connect an air supply duct to the ceiling air supply room of the paint drying room.
And the exhaust duct is placed under the floor of the paint drying room.
And placed on the floor in the paint drying room.
From the air supply duct to the object, the paint drying room
The hot air is sent out to the ceiling inside and the exhaust
Exhaust air from the container to dry the painted surface of the object.
In the painted drying room, the exhaust duct under the floor is
Divide into at least two systems, one of which has a wide floor
Connect the floor suction port of the area with
Only a part of the floor is connected to the floor suction port.
Of the floor can be freely opened
There is a way to make it talk.

[0011]

According to the method for exhausting a paint drying chamber according to claim 1,
Then, slide the slide plates of many open / close floor blocks.
Can open and close the floor suction port on the top plate.
The whole or part of the floor can be freely opened
You. According to the method for exhausting a paint drying chamber according to claim 2.
And the center part of the floor is normally opened by a normally open floor block.
Around the normally open floor block
Slide the slide plate of a large number of open / close floor blocks.
If you can open and close the floor suction port on the top plate,
The entire surface or a part thereof can be freely opened.
According to the method for exhausting a paint drying chamber according to the third aspect,
Opening / closing floor block or opening and closing
Place the upper surfaces of the floor block and the normally open floor block on
It is possible to protect the elephant from the impact when the elephant moves forward and backward. Up
According to the method for exhausting a paint drying chamber according to claim 4, the underfloor is used.
Is divided into at least two systems,
By controlling the exhaust of both systems, all or part of the floor
Can be freely opened.

Therefore, in any case, for example, at the time of painting, the floor suction port can be opened over the entire surface of the floor to spray the paint on the object, and at the time of drying, the object can be painted. Can be opened only at a part such as the central bottom surface. Thereby, near the floor of the coating and drying room, that is, near the bottom of the object, the flow velocity of the hot air is increased, the amount of heat supplied to the object is increased, and a rapid temperature rise is achieved. That is, at the same time as the temperature of each part of the object quickly reaches the drying temperature, the temperature difference in each part of the object is eliminated, and the drying temperature is made uniform.

[0013]

1 to 3 show one embodiment of a coating and drying apparatus system for carrying out a method for exhausting a coating and drying chamber according to the present invention. In these figures, R is a paint drying room for performing a correction painting or a full painting of an object 100 such as a vehicle (hereinafter abbreviated as a vehicle) or a drying treatment after these paintings. Although the outer plate (side plate) has a closed structure formed of a single panel such as a normal steel plate, the opening and closing doors (not shown) around the room can be opened and closed when the vehicle 100 is taken in and out.

Further, the ceiling portion of the paint drying chamber R with each other provided with a ceiling supply air chamber portion R _1, air supply duct 1 in the ceiling supply air chamber portion R ₁ is Yes communicated, also, that the underfloor portion R _2, exhaust duct 3 through the pits 2 are communicated. The aforementioned air supply duct 1 from the side incorporating the external air, the primary filter 4, the blower fan 5, the air volume switch damper 6, the combustion burner 8 with a hot-air generator 7, 2 of the ceiling supply air chamber portion R ₁ the following filter 9 is incorporated, the communicated ceiling supply air chamber portion R ₁ of the air supply duct 1, the vehicle 100 is carrying installation for painting drying chamber R, so the outside air or hot air is fed ing.

On the other hand, on the indoor floor side of the exhaust duct 3, a plurality of opening / closing floor blocks 210 each having a floor suction port 211 which can be opened and closed, and a floor suction port 221 are always open. In addition, an exhaust filter 10 and an exhaust fan 11 are incorporated in a portion extending from the pit 2 portion of the floor, and air or hot air in the room is sucked and exhausted. It is becoming.

The opening / closing floor block 210 is, for example, shown in FIG.
As shown in FIG. 5, a plurality of floor suction ports 211 are formed, a top plate 212 installed on a block frame, and slidably incorporated below the top plate 212, and And a slide plate 214 having an opening 213 corresponding to the opening 211.
The erecting operation part 215 is connected to the long hole 21 of the top plate 212.
6 and slides along the elongated hole 216 of the upright operation section 215 to cause the floor suction port 211 to slide on the slide plate 214.
The opening degree can be adjusted to coincide with or not coincide with the opening 213. The opening / closing floor block 210 is laid in all parts except the center on the floor of the pit 2.

The normally open floor block 220 is, for example, shown in FIG.
As shown in (1), one floor suction port 221 is formed in the center, and a top plate 222 is provided on the block frame. The floor suction port 221 of the top plate 222 is always open. Has remained. The normally open floor block 220 is laid at the center of the pit 2 on the floor. In addition, it is preferable to fit a grid-like cover body 230 on each of the upper surfaces of the normally-open floor block 220 and the opening and closing floor block 210.

In order to carry out the method of the present invention with such an apparatus system, the following is carried out. Prior to the drying method according to the present invention, the vehicle 100 is generally subjected to a coating process such as a correction coating or a full-surface coating. At the time of this coating, first, the above-mentioned slide plate 214 is slid in the opening direction to open all the open / close floor blocks 210. Thereby, the floor suction port 2 of the normally open floor block 220
Since 21 is always open, the entire surface of the floor above the pit 2 of the coating and drying chamber R is opened. The vehicle 100 to be processed has the center bottom surface that is just the normally open floor block 22.
It is carried in and placed so as to be located on the floor suction port 221 of the “0”.

In this state, the blower fan 5 is driven to
Leads to external air in the ceiling supply air chamber portion R ₁ of the paint drying chamber R through the air supply duct 1 is blown into the room. At this time, the hot air generator 7 is stopped, or when it is necessary to heat the coating and drying room R in winter or the like, the combustion burner 8 is ignited to drive the hot air generator 7 to set the appropriate temperature. Blow hot air. Such air or hot air is 1
Since dust and the like are removed by the secondary filter 4 and the secondary filter 9, the dust is introduced into the room in a clean state. Also,
The supply amount can be appropriately adjusted by adjusting the air volume switching damper 6.

The air or hot air supplied in this manner is suction-driven by the exhaust fan 11 on the exhaust duct 3 side, and as shown in FIG. and through the floor suction opening 221 of TsuneHirakiyuka block 220, is guided to the pits 2 of the underfloor portion R _2, it is exhausted to the outside. At this time, paint mitos and the like are removed by the exhaust filter 10, and clean air or hot air is exhausted to the outside.

In the concrete coating, for example, an operator enters the coating drying chamber R and applies a coating to a part or the entire surface of the vehicle 100 by using a coating spray gun or a coating device (coating robot). Spray and do.

After the completion of the coating process, a drying process of the coated surface is performed. In the drying process, first, the slide plate 214 described above is slid in the closing direction to close all the open / close floor blocks 210, and as shown in FIG. Block 22
0 floor surface suction port 221 only. That is, only the center on the pit 2 of the paint drying chamber R is opened.

In this state, the above-described blower fan 5
To drive the hot air generator 7 by igniting the combustion burner 8 to drive the hot air through the air supply duct 1 to the ceiling air supply chamber portion R ₁ of the coating and drying chamber R, thereby Blow into At this time, in order to reduce fuel consumption by reducing the amount of supplied air, the air volume switching damper 6 is adjusted.
Compared with the above-mentioned painting, the air volume is reduced to 1/2 to 1/3.
To the extent. As a result, the wind speed of hot air is
/ 2 to 1/3. Of course, also at this time, the hot air is introduced into the room in a clean state because dust and the like are removed by the primary filter 4 and the secondary filter 9.

As described above, the hot air blown into the paint drying chamber R at a low speed tends to descend at a slow speed in the direction of the floor of the room. Since only the center portion below the surface is open, a part of the center, as shown in FIG.
In other words, the exhaust is concentrated from the floor suction port 221 of the normally open floor block 220.

Of course, since the concentrated exhaust air is sucked by the suction action of the exhaust fan 11 on the exhaust duct 3 side, the speed of the indoor hot air increases as it approaches the floor suction port 221. . Therefore, in a vertical portion such as a door portion of the vehicle 100 (a portion requiring a long time to be heated to the drying temperature), particularly in a lower portion of the door, the amount of heat supply is greatly increased, and the temperature is quickly increased to the drying temperature. Will be able to do it. However, the hot air that comes into contact with a horizontal portion such as the roof portion of the vehicle 100 has a slow flow velocity and is thus heated slowly. As a result, the horizontal portion of the vehicle 100 that is likely to be heated is slowly heated, and the vertical portion that is not easily heated is quickly heated.
In this case, the heating temperature in each part can be made uniform and quick.

Incidentally, according to an experiment conducted by the present inventors who carried out the method of the present invention, although the temperature rise time of the ceiling portion of the vehicle 100 is almost the same as the conventional one and there is no significant change, the door portion, especially the lower portion of the door, etc. The heating time of the part where the temperature rise is difficult is 3 times longer than when the entire floor is opened.
It was confirmed that a reduction of about 40% could be achieved.

If the inside of the coating and drying chamber R has a negative pressure at the time of the exhaust, the dust and the like from the outside can easily enter.
In the method of the present invention, it is preferable to control the inside of the paint drying chamber R to have a positive pressure by adjusting the exhaust fan 11.

FIGS. 4 to 7 show another embodiment of a paint drying apparatus system for carrying out the method for exhausting a paint drying chamber according to the present invention. This device system also has basically the same structure as the device system shown in FIGS. 1 to 3 except that the exhaust duct 3 under the floor is divided into at least two systems 310 and 320, and one of the divided exhaust ducts 310 and 320 is provided. Is connected to a wide range of floor suction ports 311 of the floor, and only the floor suction ports 321 of a part of the floor are connected to the other divided exhaust duct 320.

The divided exhaust duct 310 is, for example, as shown in FIG.
As shown in FIG. 7, a plurality of floor suction ports 311 are formed and a top plate 312 is set on the block frame, and is laid on all parts of the pit 2 except for the center on the floor. It is communicated with the open floor block 313, and in the middle,
For example, an opening / closing damper 315 including a large number of swinging open / close fins 314 is provided, and the divided exhaust duct 310 itself is opened / closed by opening / closing the swingable open / close fins 314 manually or by an air cylinder or the like. The opening / closing damper 315 is preferably configured to be removable so that adhesion of paint mist and the like and dirt can be cleaned.

On the other hand, as shown in FIG. 6, for example, the divided exhaust duct 320 has a front end 320a of the duct passage.
Is a normally open floor block formed of a top plate 322 having one floor suction port 321 formed in the center of the room and installed on a block frame, and laid at a center portion on the floor of the pit 2. H.323 is directly communicated with the floor suction port 321, and a rear end thereof is communicated with a duct on the exhaust fan 11 side via a partition plate 324. Therefore,
This divided exhaust duct 320 is always kept open. In addition, it is preferable that the lattice-shaped cover body 330 is preferably fitted on the upper surfaces of the normally-open floor block 323 and the normally-open floor block 313.

To carry out the method of the present invention with such an apparatus system, the following is carried out. First, at the time of painting, the above-mentioned opening / closing damper 315 is driven in the opening direction to open the floor suction ports 311 of all the normally-open floor blocks 313 to the divided exhaust duct 310. Thus, since the floor suction port 321 of the normally open floor block 323 of the other divided exhaust duct 320 is always open, the entire floor on the pit 2 of the coating and drying chamber R is opened. The vehicle 100 to be processed has the center bottom surface that is just the normally open floor block 3.
It is carried in and placed so as to be located on the 23 floor suction ports 321.

The operation from this state is the same as in the case of FIGS. 1 to 3 described above, and by driving the blower fan 5, the external air is supplied through the air supply duct 1 to the part of the ceiling air supply chamber of the paint drying chamber R. It led to R _1, blown into the room. At this time, the hot air generator 7 is stopped, or when it is necessary to heat the coating and drying room R in winter or the like, the combustion burner 8 is ignited to drive the hot air generator 7 to set the appropriate temperature. Blow hot air. Such air or hot air is introduced into the room in a clean state because dust and the like are removed by the primary filter 4 and the secondary filter 9. The supply amount can be appropriately adjusted by adjusting the air volume switching damper 6.

The air or hot air supplied in this manner is suction-driven by the exhaust fan 11 on the exhaust duct 3 side, and as shown in FIG. and through the floor suction opening 321 of TsuneHirakiyuka block 320, is guided to the pits 2 of the underfloor portion R _2, it is exhausted to the outside. At this time, paint mitos and the like are removed by the exhaust filter 10, and clean air or hot air is exhausted to the outside.

After the completion of the coating process, a drying process of the coated surface is performed. In this drying process, first, the above-described opening / closing damper 315 is driven in the closing direction to shut off the divided exhaust ducts 310 and close the floor suction ports 311 of all the opening / closing floor blocks 310, as shown in FIG. Only the floor suction port 321 of the normally-open floor block 323 is opened. That is, only the center on the pit 2 of the paint drying chamber R is opened.

From this state, similarly to FIGS. 1 to 3 described above, the blower fan 5 is driven to take in external air, and the combustion burner 8 is ignited to drive the hot air generator 7, through the air supply duct 1 hot air, leading to the ceiling supply air chamber portion R ₁ of the paint drying chamber R, blown into the room. At this time, in order to reduce fuel consumption by reducing the amount of supplied air,
The air volume switching damper 6 is adjusted so that the air volume is suppressed to about ２〜 to 時 に as compared with the time of the above-described painting. Thereby, the wind speed of the hot air is also reduced to about 1/2 to 1/3 of the time of the coating. Of course, also at this time, the hot air is introduced into the room in a clean state because dust and the like are removed by the primary filter 4 and the secondary filter 9.

As described above, the hot air blown into the paint drying chamber R at a low speed tends to descend toward the floor of the room at a slow speed. Since only the center portion below the floor surface is open, as shown in FIG.
That is, the exhaust is concentrated from the floor suction port 321 of the normally open floor block 323. Due to this concentrated exhaust, the above-described FIG.
3 to obtain the same operation and effect as in the case of FIG.

In the embodiment shown in FIGS. 1 to 3, the normally open floor block 220 is laid at the center of the pit 2 on the floor, but the present invention is not limited to this.
An opening / closing floor block 210 is also laid at a center portion on the floor surface, and at the time of drying, the opening / closing floor block 2 of this center is used.
It is also possible to deal with only 10 open. Further, the target object 100 is a vehicle, but the present invention is not limited to this.

[0038]

As is apparent from the above description, the following excellent effects can be obtained by the method for exhausting a paint drying chamber according to the present invention. (1) First, at the time of painting, the same exhaust control as before is performed, and at the same time, at the time of drying, the air volume (air volume) is suppressed to about １ ／ to ３ of that at the time of painting. During the drying, the floor suction port of the exhaust duct is opened only to a part of the floor, so the flow velocity of the hot air is low near the ceiling of the coating drying room, Therefore, the flow velocity increases. For this reason, it is possible to quickly raise the temperature of an object such as a vehicle, not only in a horizontal portion such as a roof where the temperature easily rises, but also in a vertical portion such as a door where the temperature hardly increases. it can. That is, the temperature difference in each part of the object is effectively eliminated. As a result, in the case of a vehicle or the like, a uniform high-quality coating state can be obtained on the coating surface of each part.

(2) Next, as described above, the flow velocity is increased at the floor of the coating and drying chamber, so that the heating of the entire object to the drying temperature is shortened for a short time. As a result, the drying time is shortened, and a large improvement in workability is achieved.

(3) In connection with the increase in the flow velocity at the floor of the coating and drying room, the detachment of the door lining, equipment, etc., which has conventionally been performed to increase the temperature rising speed of the door and the like, has been performed. Since there is no need to perform this operation or only the minimum necessary operations can be performed, improvement in workability can be expected from this point as well.

(4) From a different point of view, by increasing the flow velocity at the floor of the coating and drying chamber, the same effect as that of the conventional apparatus can be obtained. It may be small, and reduction in equipment cost and running cost can be expected.

(5) Further, since the heating of the object to the required drying temperature is shortened, it is necessary to use a heat insulating panel or the like having a special heat insulating structure as the outer plate (side plate) of the paint drying chamber. Since there is no particular requirement, a single panel such as a normal steel plate can be used, which in turn reduces equipment costs, and in summer, when the temperature is high, the temperature can be quickly reduced to a temperature suitable for the next coating process after drying is completed. Therefore, it is expected that the work cycle can be shortened and the workability can be improved.

(6) Moreover, the floor of the exhaust duct as described above
When opening and closing the surface suction port, multiple floor surface suction ports are formed
Top plate and slidably incorporated into it and floor surface
From the slide plate with the opening corresponding to the suction port
Use multiple open / close floor blocks, or
The floor suction port is formed in the center with the opening and closing floor block
Because a normally open floor block made of
A simple and varied response is possible.

(7) Further, by installing the grid-like cover body,
Opening / closing floor block or opening / closing floor block and normally open floor block
The top surface of the rack, such as the impact of a moving object such as a vehicle
Can be protected from In other words, the lattice-shaped hippo
-Simple and not very strong due to the use of the body
Sufficient support for open / closed floor blocks and normally open floor blocks
To reduce the cost of each block, for example,
Can be.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an operation state at the time of coating according to an embodiment of a coating drying apparatus system for carrying out a method of exhausting a coating drying chamber according to the present invention.

FIG. 2 is a longitudinal sectional view showing an operation state of the coating and drying apparatus system of FIG. 1 during drying.

FIG. 3 is a perspective view with a partially developed view showing an example of an exhaust duct in the coating and drying apparatus system of FIG. 1;

FIG. 4 is a longitudinal sectional view showing an operation state at the time of coating according to another embodiment of the coating drying apparatus system for performing the method of exhausting the coating drying chamber according to the present invention.

FIG. 5 is a longitudinal sectional view showing an operation state of the coating and drying apparatus system of FIG. 4 during drying.

FIG. 6 is a perspective view with a partially developed view showing an example of an exhaust duct in the coating and drying apparatus system of FIG. 4;

[Explanation of symbols]

R Paint drying room R ₁ Ceiling air supply part R _{2 Under} floor part 1 Air supply duct 2 Pit 3 Exhaust duct 4 Primary filter 5 Blow fan 6 Air volume switching damper 7 Hot air generator 8 Combustion burner 9 Secondary filter 10 Exhaust filter DESCRIPTION OF SYMBOLS 11 Exhaust fan 100 Target object 210 Opening / closing floor block 211 Floor suction port 212 Top plate 213 Opening 214 Slide plate 220 Normally open floor block 221 Floor suction port 222 Top plate 310 Split exhaust duct 311 Floor suction port 320 Split exhaust Duct 321 Floor suction port 230 Lattice cover

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Masanobu Yoshioka 3-5-28 Mita, Minato-ku, Tokyo Nissan Altia Corporation (56) References JP-A-63-104680 (JP, A) JP-A Sho 52-130835 (JP, A) Japanese Utility Model Showa 58-107173 (JP, U) Japanese Utility Model Application Hei 4-61659 (JP, U) Japanese Utility Model Showa 56-28770 (JP, U)

Claims (4)

(57) [Claims] An air supply duct communicates with a ceiling air supply chamber portion of a paint drying chamber, and an exhaust duct communicates with a lower part of the paint drying chamber. For a target object, in a paint drying chamber that sends hot air from the air supply duct to the ceiling portion of the paint drying chamber and exhausts air from the exhaust duct under the floor to dry the painted surface of the target object. , Setting of the object
There are multiple floor suction ports in the pit opening under the floor
Is formed slidably on the top plate formed with
And a slot having an opening corresponding to the floor suction port.
Laying a number of open / close floor blocks consisting of ride boards,
By sliding the slide plate, the floor suction port of the top plate is removed.
A method for exhausting a coating and drying chamber, characterized in that the floor is opened and closed to freely open the entire surface or a part of the floor . 2. An air supply duct is provided in a ceiling air supply chamber of a paint drying room.
At the bottom of the paint drying room.
The air duct communicates and is installed on the floor in the paint drying room
The painted object from the air supply duct
Send hot air to the ceiling in the drying room and
Exhaust from the exhaust duct to dry the painted surface of the object.
In the paint drying room, the object is set up.
The center of the pit opening under the floor where the
Open floor block consisting of a top plate with floor suction holes
And laying the pin around the normally open floor block.
Top plate with multiple floor suction ports formed at the opening of the unit
And slidably mounted on the top plate, and
A slide plate with an opening corresponding to the port
Many open / close floor blocks are laid, and the center of the floor is
The floor is always open while the floor is open
By sliding the slide plate around the floor block,
Open and close the floor suction port of the top plate, and
The exhaust part of the paint drying chamber, characterized in that the part is freely opened 3. The opening / closing floor block or the opening / closing floor block.
A grid-like cover on the top of the
Claim 1 or 2 way exhaust paint drying chamber, wherein the digit. 4. An air supply duct is provided in a ceiling air supply room of a paint drying room.
At the bottom of the paint drying room.
The air duct communicates and is installed on the floor in the paint drying room
The painted object from the air supply duct
Send hot air to the ceiling in the drying room and
Exhaust from the exhaust duct to dry the painted surface of the object.
In the paint drying room, the exhaust duct under the floor is divided into at least two systems, one of which communicates with a wide range of floor suction ports of the floor, and the other system has a part of the floor. The exhaust method of a paint drying chamber, characterized in that only the floor suction port of (1) is communicated with and the whole or part of the floor is freely opened by exhaust control of both systems.