JPS5921894Y2 - spray painting equipment - Google Patents

Description

[Detailed description of the invention] This invention relates to spray painting equipment that sprays paint onto objects to be painted that are brought in one after another.The purpose of this invention is to efficiently capture excess paint particles generated during painting operations. The purpose of this invention is to provide a facility with a simple structure.

An embodiment of the present invention will be explained below with reference to the drawings.
FIG. 1 shows a spray coating equipment 10 in which the present invention is implemented.

This spray painting equipment 10 sprays paint onto an object W to be painted such as a car body, and includes a painting equipment main body 11 configured airtightly and an air supply device 12 installed on the ceiling of this painting equipment main body 11. and air exhaust towers 13.13 arranged on the left and right sides of the coating equipment main body 11.

The coating equipment main body 11 has a slatted floor 14 provided approximately in the center thereof and a plurality of (three in this embodiment) water tanks 20 to 20 arranged horizontally below the floor 14 for painting purposes. It is separated into a passage 15 and a chamber 16, and the lower part of the coating equipment main body 11 is closed off by an inclined floor 17.

An air supply device 12 provided in the main body 11 of the painting equipment uniformly supplies outside air into the painting passage 15 at a predetermined pressure, and is provided along the painting passage 15.

The floor 14 is a frame 1 fixed horizontally within the coating equipment main body 11.
4a, and is divided into a certain shape so that it can be partially opened.

The painting passage 15 is into which the objects W to be painted are sequentially carried, and the painting passage 15 is equipped with spray guns 15a, 15a for spraying paint onto the objects W to be painted.

The chamber 16 communicates with the painting passage 15 through the floor 14 and each slit 26 described later, and each air exhaust tower 1 connected airtightly by each connecting pipe 13a at the bottom thereof.
It communicates within 3.

Each air discharge tower 13 discharges the air supplied into the painting equipment main body 11 by the air supply device 12 into the atmosphere from its upper end by an air supply fan (not shown), and inside each air discharge tower 13 there is a A plurality of baffle plates 13b to 13b
is fixed.

The inclined floor 17 is inclined downwardly from each air discharge tower 13, and a drainage channel 18 is provided at each lower end thereof, and a water supply pipe 19 is provided at the top 17a along the painting passage 15. It is provided.

Note that each drainage channel 18 is connected to a purification device (not shown).

Each water tank 20 arranged horizontally below the floor 14 forms an overflow portion 21, 21 along the painting passage 15 with a predetermined width.

Furthermore, water supply pipes 23 are arranged horizontally on the bottom plate 22 of each water tank 20, and each of these water supply pipes 23 is connected to a purification device (not shown) connected to each of the drainage channels 18.

The side plates 24 to 24 of each water tank 20 are configured such that their heights can be adjusted, and a horizontal plate 25 is attached along the painting passage 15 at the center of each outer side.

Each horizontal plate 25 has a predetermined width and is replaceable, and when each horizontal plate 25 is attached to each side plate 24, a slit (26.26) of a desired width along the painting passage 15 is formed in each overflow part 21. Formed below.

Thereby, the painting passage 15 and the chamber 16 located below each water tank 20 are communicated only through each slit 26.

To operate the spray coating equipment 10 configured as described above, first, one volume of fresh water is supplied per unit time from the water supply pipe 23 into each water tank 20, and this fresh water is poured from the upper end of each side plate 24 to the overflow part 21. A water film is formed on the sloped floor 17 by constantly overflowing with water towards the sloped floor 17, and by constantly flowing fresh water from the water supply pipe 19 provided at the top 17a of the sloped floor 17.

Furthermore, the air supply device 12 is operated to supply outside air from the painting passage 15 to the room 16 through the floor 14 and each slit 26.
feed within.

As a result, the fresh water that forms a water film in each overflowing part 21 and overflows becomes a mist from each slit 26 due to the ejector effect of the air passing through each slit 26 and steadily flows downward to each water tank 20. .

At this time, the height of each side plate 24 and the width of each slit 26 are adjusted to appropriate amounts, and the fresh water overflowing from each side plate 24 is disturbed on each horizontal plate 25 due to the drop, and the fresh water overflowing from each side plate 24 is disturbed on each horizontal plate 25. The mixing of fresh water and air is done more effectively.

When the object W to be painted is brought into the painting passage 15 in such a state and the paint is sprayed onto the object W from each spray gun 15a, the surplus that did not adhere to the object W will be removed. The paint is forced down the floor 14 along with the air.

As a result, relatively large paint particles fall and accumulate in each water tank 20, and some of the fine paint particles are captured on the water surface of each water tank 20 and flow to each overflow part 21 together with the water.

Further, as shown in FIG. 2, the remaining fine paint particles are sent together with air toward each slit 26, and are attached to the water flowing down from the slit 26 in the form of a mist, downwards of each water tank 20. flows down to

At this time, the fine paint particles can come into sufficient contact with the mist-like water droplets in the chamber 16 formed between each water tank 20 and the inclined floor 17, and are completely captured by each water droplet.

The paint particles captured in this way are transferred to the inclined floor 17 along with water.
The water falls upward, is further captured by the water film on the inclined floor 17, and is sent to the purification device through each drainage channel 18.

On the other hand, the air flowing downward into each water tank 20 is sucked into each air discharge tower 13 and discharged to the outside with residual water droplets removed by each baffle plate 13b.

Note that the water used at this time is purified by the purifier and then supplied to the water supply pipes 23 in each water tank 20 again.

Further, when excess paint accumulates in each water tank 20 due to this painting operation, the floor 14 is opened and the inside of each water tank 20 is cleaned.

At this time, each water tank 20 is located directly below the opening in the floor 14, making it easy to clean it.

In the above embodiment, the slits 26 were formed by a pair of horizontal plates 25 and 25 attached below each overflow part 21, but instead of this, a large number of openings were bored at predetermined intervals. One plate may be installed horizontally between each side plate 24.

Although FIG. 1 shows a sloped floor 17 with a top 17a formed in the center, for example, if the air exhaust tower 13 cannot be installed on the right side of the coating equipment main body 11, the virtual floor 17 shown in FIG. As shown by the lines, the top of the sloped floor 17 may be formed to be located at the right end of the chamber 16, and a water supply pipe may be provided at the top.

In short, in the present invention, as exemplified in the above embodiment, a plurality of water tanks 20 to 20 are horizontally arranged below the floor 14 of the painting equipment main body 11 along the painting passage 15, and each of these water tanks is A chamber 16 is formed below 20, and a water supply pipe 23 is provided in each water tank 20, and a pair of left and right horizontal plates 25. A slit 26 is formed at the bottom of each water tank 20, and the slanted floor 17 is sloped toward 13 so that air flows out at the bottom of each water tank 20, and a water pipe 19 is provided at the top 17a.
are arranged along each slit 26 and the inclined floor 17
The structure is characterized by the provision of water passageways 18, 18 at the lower end, and despite its relatively simple structure, it is capable of absorbing excess paint particles generated during the painting industry in a stable manner. We can provide spray painting equipment that can capture efficiently.

[Brief explanation of the drawing]

Figure 1 shows a longitudinal section of the spray coating equipment in which the present invention was implemented;
The figure is an enlarged longitudinal section I showing the state in which surplus mold particles are captured by this spray coating equipment. Explanation of symbols 10... Spray coating equipment, 12... Air supply device, 13... Air wandering tower, 14... Floor, 15... Painting passage, 16... Room, 17... Inclined floor, 17a ...top,
18... Drainage channel, 19... Water supply pipe, 20... Water tank, 23
...Water supply pipe, 25...Horizontal plate, 26...Slit, W...
...Object to be painted.

Claims (1)

[Scope of utility model registration request] An air supply device is installed on the ceiling of the painting passageway where the objects to be painted are sequentially brought in and spraying is carried out, and the air supplied from this air supply device is discharged through the floor of the painting passageway. In the spray painting equipment in which exhaust air is guided to an air exhaust tower provided on at least one side of the painting passage, a plurality of water tanks are arranged horizontally below the floor of the painting passage along the painting passage. A water supply pipe is provided in each of these water tanks, and a pair of left and right horizontal plates is provided between each of the water tanks, a longitudinal slit is formed between these horizontal plates, and a water supply pipe is provided in the lower part of the water tank. A sloped floor that slopes toward the air discharge tower and has a water supply pipe at the top thereof is arranged along the slit, and a drainage channel is provided at the lower end of the sloped bed so that each water tank is connected to the horizontal plate. The overflowing water forms a water film in each of the slits, and this water film becomes atomized by the air from above and flows down into the room between each of the water tanks and the sloped floor, and the mist-like water droplets that flow down form a water film in each slit. The spray coating equipment is configured to be captured by a water film formed by water flowing from a water supply pipe provided at the top of the sloping floor, and to flow into the drainage channel.