JPH0377662A - Wet type coating booth - Google Patents

Abstract

PURPOSE:To decrease the vertical width of a coating material recovering chamber by providing a pair of right and left flow regulating plates, respectively, in the wind path parts of both right and left sides of a conveyor when viewed in the transporting direction of articles to be coated and disposing the respective flow regulating plates in such a manner that the discharge ports are deviated to a conveyor side. CONSTITUTION:The coating material mists in a coating chamber 1 are fed into the coating material recovering chamber 2 by the air flow generated by the ventilation effect which is generated by a blasting means S and a discharging means H. In the point recovering chamber 2, the respective flow regulating plates 7 have a pair of the right and left inclined guide parts A when viewed in the transporting direction of the articles T to be coated. The discharge ports 8 are formed between the lower parts of these inclined guide parts A. In addition, trough parts B for running the washing water supplied to the inclined guide parts A are provided on the top end side of the respective inclined guide parts A. The booth is so constituted that the coating material mists are captured in the washing water at the time when the air passes the discharge ports 8 of the flow regulating plates 7. The need for running the air contg. the coating material mists below the conveyor is, therefore, eliminated and the vertical width of the coating material recovering chamber is decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention provides a coating means for spraying liquid paint onto articles to be coated in a painting workroom equipped with a conveyor device for placing and conveying articles to be coated on the floor side. is provided, a blowing means for blowing air from the ceiling side to the floor side of the painting work room is provided, an exhaust means is provided for suctioning a paint recovery room located below the painting work room, and the The present invention relates to a wet-type painting booth in which a paint recovery chamber is provided with a paint recovery rectifier plate that causes cleaning water to capture paint mist.

[Conventional technology]

This type of wet painting booth is used when painting objects to be painted, such as automobile bodies, and the paint mist generated in the painting work room is captured by cleaning water in the paint recovery room. ing.

By the way, conventionally, as shown in Fig. 4, the article to be coated (
When viewed in the transport direction of T), one rectifying plate (30) was provided. In other words, the current plate (30) is connected to the conveyor device (31
) side is provided with a pair of left and right inclined guide parts (30A) which become lower and enter below the conveyor device (31), and a discharge port (32
), and a wash water flow gutter section (30B) for supplying wash water to the inclined guide section (30A) was provided on the upper end side of each inclined guide section (30A).

[Problem to be solved by the invention]

Conventionally, one baffle plate is disposed so as to bypass the conveyor device, which has the disadvantage of increasing the vertical width of the paint recovery chamber.

To explain further, the outlet of the baffle plate is located below the conveyor device, and the air containing paint mist flowing toward the outlet flows between the conveyor device and each inclined guide part of the baffle plate. It will pass through the space between. Therefore,
For the flow of the air, it is necessary to make the distance between the conveyor device and each inclined guide part of the baffle plate sufficiently large;
As a result, the rectifying plate has to be disposed at a large distance below the conveyor device, which inconveniently increases the vertical width of the paint recovery chamber.

Incidentally, in order to form a paint booth, it is common to form a pit and use the inside of the pit as a paint recovery chamber. However, there is also a type where the entire painting booth is installed on the ground side. As mentioned above, when the vertical width of the paint recovery chamber increases, a deep pit must be formed, and when the entire paint booth is installed on the ground side, it becomes necessary to form a deep pit. The height of the painting booth from the ground is increased, and in either type, if the vertical width of the paint recovery chamber becomes large, the construction of the painting booth is disadvantageous.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to reduce the vertical width of the paint recovery chamber while allowing proper paint recovery and proper painting. It is in.

[Means to solve the problem]

The wet coating booth according to the present invention includes a coating work room equipped with a conveyor device for placing and conveying articles to be coated on the floor side, and a coating means for spraying liquid paint onto the articles to be coated,
A blowing means for blowing air from the ceiling side to the floor side of the painting work room is provided, and an exhaust means is provided for suctioning a paint collection chamber located below the painting work room, , a rectifying plate for paint recovery that captures paint mist in the cleaning water is provided, and the first characteristic configuration thereof is that, when viewed in the conveying direction of the article to be coated, the rectifying plate A pair of left and right baffle plates are provided so as to act separately on the left and right air passage portions of the conveyor, and each baffle plate is provided with a discharge port positioned biased toward the conveyor device side. There is.

The second characteristic configuration and the third characteristic configuration specify a preferable configuration when implementing the first characteristic configuration.

That is, the second characteristic configuration is that each of the current plates is provided with a pair of left and right inclined guide parts, and the discharge port is formed between the lower portions of the inclined guide parts, when viewed in the conveying direction of the article to be coated. and is configured to include a washing water flow angle gutter section on the upper end side of each inclined guide section for supplying washing water to the inclined guide section, and a bottom portion of the washing water flow angle gutter section on the conveyor device side of the rectifier plate. is characterized in that it is provided with a receiving frame that is positioned at the same height as the lower end of the conveyor device and receives and supports the lower end of the conveyor device and the bottom of the washing water flow angle gutter section. .

Further, a third characteristic configuration is that each of the baffle plates is provided with one inclined guide part which becomes lower toward the conveyor device, and the lower part of the inclined guide part and the mouth forming member disposed opposite thereto. It is characterized in that the outlet is formed between the outlet and the outlet.

[For production]

The effects of the first characteristic configuration described above are as follows.

Paint mist is captured in the cleaning water by a pair of left and right baffle plates that act separately on the air passages on both the left and right sides of the conveyor device and have separate discharge ports.
This eliminates the need for air containing paint mist to flow down the conveyor system.

By locating the discharge ports provided on each baffle plate toward the conveyor device side, the air flows as much as possible toward the conveyor device side, that is, toward the object to be painted, thereby preventing paint from adhering to the object to be painted. This makes it possible to improve the adhesion efficiency of the paint to the article to be coated.

To explain, it is a good idea to form the discharge ports provided on each baffle plate so that they are not biased toward the conveyor device, such as by locating them at the center of the width of the baffle plate or on the side farther away from the conveyor device. However, in this case, the amount of paint that is discharged without adhering to the article to be coated is likely to increase due to the flow of air. In comparison, if the air is made to flow as much as possible toward the conveyor device side, that is, toward the object to be coated, the paint will easily adhere to the object to be coated, and the efficiency of adhesion of the paint to the object to be coated can be improved. becomes.

According to the second characteristic configuration described above, in addition to the effects provided by the first characteristic configuration, there is the following effect.

Each rectifying plate guides air and cleaning water toward the discharge port using the left and right inclined guide portions, and causes paint mist to be captured in the cleaning water.

In this characteristic configuration, the lower end of the conveyor device;
The bottom of the cleaning water flow angle gutter on the conveyor side of the baffle plate is positioned at the same height and is received and supported by the receiving frame, so that the support structure between the conveyor device and the baffle plate is This is advantageous for simplification.

To explain further, if the receiving frame receives and supports the lower end of the conveyor device and the bottom of the washing water flow angle gutter section, if they are positioned at different heights, the receiving frame has a receiving portion for the conveyor device and a supporting portion for the conveyor device. The bottom of the washing water flow angle gutter section and the receiving part are provided at different heights, which has the disadvantage that the receiving frame has to be formed into a complicated shape. If the bottom of the flow angle gutter section is located at the same height, the receiving frame can have a simple shape, which is advantageous for simplifying the support structure for the conveyor device and the current plate. Incidentally, it is also possible to attach the cleaning water flow angle gutter to the case part of the conveyor device and have the receiving frame receive and support only the conveyor device, but in this case, the strength of the case part of the conveyor device may be increased more than necessary. There are disadvantages that must be increased, making it difficult to put it into practical use.

According to the third characteristic configuration described above, in addition to the effects provided by the first characteristic configuration, there is the following effect.

Each baffle plate guides the air and cleaning water toward the discharge port using one inclined guide section that is lower toward the conveyor device and traps the paint mist in the cleaning water.

Since each current plate is provided with one inclined guide portion in this way, the configuration of the current plate can be simplified.

〔Effect of the invention〕

The effects of the first feature configuration are as follows.

Since the air containing paint mist does not need to flow below the conveyor device, the outlet of the baffle plate is located below the conveyor device to form an air flow path between the conveyor device and the baffle plate. Compared to the conventional art, the amount of downward protrusion of the current plate relative to the conveyor device can be reduced, and the vertical width of the paint recovery chamber can be reduced. Therefore, when forming a paint booth by forming a pit, the depth of the pit can be reduced, and when the entire paint booth is installed on the ground side, the ground clearance of the paint booth can be reduced. Become something.

Moreover, while obtaining such advantages, the discharge ports provided in each rectifying plate are located biased towards the conveyor device side,
Since the adhesion efficiency of paint to the object to be painted is improved, efficient painting work can be carried out.

As a result, we have achieved a wet-type painting booth that is advantageous in terms of construction of the painting booth as a whole and allows for efficient painting work.

The effect of the second feature configuration has the following effect in addition to the effect of the first feature configuration.

In the case where each current plate is configured to include a cleaning water flow gutter section on the upper end side of the pair of left and right inclined guide parts, it is possible to simplify the receiving and supporting structure for the conveyor device and the current plate, This is even more advantageous in terms of construction of the paint booth.

The effect of the third feature configuration has the following effect in addition to the effect of the first feature configuration.

each current plate is formed with one inclined guide part,
Since the configuration of the current plate can be simplified, this case is also more advantageous in terms of construction of the coating booth.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in Figure 1, a wet painting booth consists of a painting work room (
1) and a paint recovery chamber (2) located below it. The paint recovery chamber (2) is formed by forming a pit.Furthermore, the floor (F) of the painting work chamber (1) is formed with porous holes for ventilation.

A conveyor device (D) for conveying objects to be painted (T) such as automobile bodies is installed on the floor side of the painting work room (1), and objects to be painted such as automobile bodies conveyed by the conveyor device (D) A painting means (W) for spraying a liquid paint onto an article (T) is provided in a painting work room (1).

A blowing means (S) is provided for blowing air from the ceiling side to the floor side of the painting work room (1). This air blowing means (S
) consists of an air chamber (3) provided in the upper part of the painting work room (1) and a blower fan (4) that supplies ventilation air to the air chamber (3).

Further, an exhaust means (H) is provided which acts by suction on the paint recovery chamber (2).This exhaust means (H)
An exhaust fan (6) is connected to exhaust ports (5) formed on both sides of the paint recovery chamber (2).

Accordingly, the paint mist in the painting work chamber (1) is sent into the paint recovery chamber (2) by the air flow due to the ventilation effect of the blower means (S) and the exhaust means (H).

In the paint recovery chamber (2), there are rectifying plates (7) that allow cleaning water to capture paint mist, on both left and right sides of the conveyor device (D) when viewed in the conveying direction of the article to be coated (T). A pair of left and right units are provided so as to act on each air passage portion separately.

Each rectifier plate (7) is provided with a discharge port (8) positioned biased towards the conveyor device side. To be more specific, each current plate (7) is provided with a pair of left and right inclined guide parts (A), and there is a gap between the lower portions of the inclined guide parts (A) when viewed in the conveyance direction of the article to be coated (T). A washing water flow angle gutter part (B) forming the discharge port (8) and supplying washing water to the inclined guide part (A) is provided on the upper end side of each inclined guide part (A). When the air passes through the outlet (8) of the baffle plate (7), the paint mist is captured by the cleaning water.

As shown in FIG. 2, the conveyor device (D) includes an endless chain (9) and receiving stands (lO) conveyed by the endless chain (9) at appropriate intervals in the longitudinal direction of the chain.
The main part is

Incidentally, the lower end portion of the conveyor device (D) and the bottom portion (b) of the cleaning water flow angle gutter portion (B) on the conveyor device side are located at the same height. The lower end of the conveyor device (D) and the washing water flow angle gutter (B) are located at the same height.
The bottom part (b) of the article to be coated (T) is received and supported by a linear receiving frame (12) when viewed in the transport direction of the article to be coated (T).

In addition, (12^) in the figure is a rod-shaped support frame of the receiving frame (12).

Incidentally, each of the rectifying plates (7) is connected to the receiving frame (12).
In addition to being received and supported by the government, various other places will be received and supported as appropriate.

[Another example]

In the above embodiment, each current plate (7) is configured with a pair of left and right inclined guide portions (A), but the third
As shown in the figure, the conveyor device (D) side is equipped with one inclined guide part (A) which becomes lower, and the lower part of the inclined guide part (A) and the opening forming member ( 13), the discharge port (8) may be formed between the discharge port (8) and the discharge port (8).

Furthermore, the degree to which the discharge ports (8) provided in each rectifier plate (7) are biased toward the conveyor device can be changed in various ways. By the way, conveyor device (D)
The discharge port is based on the side wall of the paint collection chamber (2) and the side wall of the paint recovery chamber (2).
8), if the outlet (8) is located closer to the conveyor device than the center position between the side wall of the conveyor device (D) and the side wall of the paint recovery chamber (2). Although the effects of the present invention can be produced, it is desirable that the discharge port (8 ) is even better.

In carrying out the present invention, the conveyor device (D) can be of various configurations, such as a slat conveyor type or a trolley type. In addition, painting means (W), air blowing means (
The specific configuration of each part such as S) and exhaust means (H) can be changed in various ways depending on the intended use.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the wet coating booth according to the present invention, in which FIG. 1 is a longitudinal cross-sectional view of the coating booth as seen in the direction of conveyance of articles to be coated, FIG. 2 is a schematic side view of the conveyor device, and FIG. 3 is a separate illustration. FIG. 2 is a longitudinal cross-sectional view of the painting booth of the example as viewed in the transport direction of the article to be painted. FIG. 4 is a longitudinal cross-sectional view of a conventional painting booth as viewed in the conveying direction of articles to be coated. (1)...Painting work room, (2)...Paint recovery room, (7)...Brighter plate, (8>...
...Discharge port, (12)... Receiving frame, (13)...
...... Mouth forming member, (A) ... Inclined guide part, (B) ... Washing water flow angle gutter part, (b) ...
... Bottom, (D) ... Conveyor device, (H)
... Exhaust means, (T) ... Article to be painted, (W) ... Painting means.

Claims (1)

[Claims] 1. Spraying liquid paint onto the article to be painted (T) in a painting work room (1) equipped with a conveyor device (D) for placing and conveying the article to be painted (T) on the floor side. A painting means (W) is provided, and a blowing means (S) for blowing air from the ceiling side to the floor side of the painting work room (1) is provided.
) is provided with an exhaust means (H) that acts as a suction to the paint recovery chamber (2) located below the paint recovery chamber (2).
The wet coating booth is equipped with a rectifier plate (7) for collecting paint that traps paint mist in the cleaning water, and the rectifier plate (7)
) are provided in pairs on the left and right so as to act separately on the air passage portions on both the left and right sides of the conveyor device (D), and each rectifier plate (7) has a discharge port (8) connected to the conveyor device (D). A wet painting booth that is positioned off to the side. 2. The wet coating booth according to claim 1, wherein each of the current plates (7) is provided with a pair of left and right inclined guide portions (A), so that the current plate (7) is provided with a pair of left and right inclined guide portions (A), so that the current plate (7) is inclined. The discharge port (8) is formed between the lower part of the guide part (A), and the upper end side of each inclined guide part (A) is for flowing washing water to supply washing water to the inclined guide part (A). The bottom part (b) of the washing water flow gutter part (B) on the conveyor side of the baffle plate (7) is the same as the lower end of the conveyor apparatus (D). The lower end of the conveyor device (D) and the washing water flow gutter (B) are located at the same height.
A receiving frame (12) is provided for receiving and supporting the bottom part (b) of. 3. The wet coating booth according to claim 1, wherein each of the current plates (7) is provided with one inclined guide part (A) which becomes lower toward the conveyor device, and the inclined guide part (A)
) and the mouth forming member (1
3), and the discharge port (8) is formed between the discharge port (8) and the discharge port (8).