JPH067739A - Method for coating roofing tile - Google Patents

Abstract

PURPOSE:To form easily a mosaic pattern with an antique tone by changing continuously a color pattern at a stage where roofing tiles are coated and arranging them as they are on the spot. CONSTITUTION:A plurality of roofing tiles 1 are arranged at right angle in the forwarding direction of a conveyer 2 and an undercoating thereof is performed in the first coating booth 4 and then, they are introduced into the second coating booth 6 wherein a spray gun 13 moving reciprocally at right angle to the forwarding direction of the conveyer 2 is fixed and the spray gun 13 is connected with a coating pump 15 through a hose 14. A branched suction pipe 16 is connected therewith and each suction pipe 16 is inserted into coating tanks 18a and 18b wherein coatings each with a different color are stored and the coatings 17a and 17b are sucked and mixed in the coating pump 15 by switching valves 19a and 19b at every specified time and topcoating is performed on the upper face of the undercoated roofing tile from the spray gun 13 while the color is continuously changed with time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for coating colored roof tiles used for roofing a tile roof having a mosaic pattern.

[0002]

2. Description of the Related Art In general, tiled roofs are often constructed by only roofing single-colored tiles, but in recent years, tiled roofs having a mosaic pattern in which tiles of a large number of colors are randomly roofed have come to be constructed. This tiled roof with a mosaic pattern is becoming popular because it can create a calm atmosphere by being formed in a heavy antique style.

When roofing this mosaic pattern roof, conventionally, several kinds of roof tiles that have been painted in a single color in advance at the factory are prepared.
Workers were lining up on the roof while arranging them in different colors.
However, in this construction method, for example, a predetermined number of yellow roof tiles, orange roof tiles, green roof tiles, and other three colored roof tiles are ordered, and they are stacked on the roof of the site and stacked one by one. Since they are lined up in different colors one by one and thatched, the workability is extremely poor. In addition, the tiled roof of thatched roof pattern has a limited color tone, and since the tiles of a single color are combined in different colors, it looks like a tile pattern when you look up close and you can get a calm antique feeling. There was a problem that can not be.

[0004]

DISCLOSURE OF THE INVENTION The present invention eliminates the above-mentioned drawbacks and makes it possible to easily form an antique-like mosaic pattern by continuously changing the color pattern at the stage of painting roof tiles and arranging them as they are at the site. A roof tile coating method with improved workability is provided.

[0005]

The apparatus of the present invention will be described. As shown in FIG. 1, from a loading side of a conveyor 2 for transporting roof tiles 1, a preheating chamber 3, a first coating booth 4, a baking chamber 5, and a first coating booth 4. The second coating booth 6, the baking chamber 7, and the cooling unit 9 to which the cooling fan 8 is attached are arranged in this order. The preheating chamber 3 and the baking chambers 5 and 7 are configured to inject and heat hot air from a burner (not shown) from above the roof tile 1 conveyed by the conveyor 1 from the hot air chamber 10.

In the first coating booth 4, the spray gun 13 is reciprocated by the guide rail 12 provided on the ceiling side in a direction orthogonal to the traveling direction of the conveyor 2. The spray gun 13 is connected to a paint pump 15 via a hose 14, and the tip of a suction pipe 16 connected to this is a paint pump.
It is inserted in a paint tank 18 containing 17.

As shown in FIG. 2, the second coating booth 6 has a spray gun 1 by means of a guide rail 12 provided on the ceiling side.
3 and 13 reciprocate perpendicularly to the traveling direction of the conveyor 2. The spray guns 13 and 13 are connected to the paint pump 15 via a hose 14, which is further connected to a suction pipe.
16 are connected, and the suction pipe 16 is branched into two and valves 19a and 19b are attached thereto, respectively, and the tips of the suction pipes 16 and 16 are respectively coated with paints 17a and 17 of different colors.
It is inserted in the paint tanks 18a and 18b containing b.

Explaining a method of coating the roof tile 1 with the above apparatus, first, a plurality of roof tiles 1 ... Are arranged side by side in the traveling direction of the conveyor 2 from the carry-in side of the conveyor 2 as shown in FIG. The tiles 1 ... Are conveyed to the conveyor 2 and guided to the preheating chamber 3 as shown in FIG. 1, where the surface of the tiles 1 is heated and preheated to a predetermined temperature, and then the first coating booth 4
Be led to. Here, the paint 17 in the paint tank 18 is the painting pump.
Sucked up through suction pipe 16 by 15, hose
Spray gun 13 supported by guide rail 12 through 14
The paint 17 is sprayed onto the upper surface of the roof tile 1 to prime the surface. It is desirable to use a light-colored paint 17 for the undercoat.

The roof tiles 1 thus undercoated are further conveyed by the conveyor 2 and guided to the second coating booth 6. In this second coating booth 6, as shown in FIG.
The light color paint 17a is put in the paint tank 18a, and the dark color paint 17b is put in the paint tank 18b. First, one valve 19a of the branched suction pipe 16 is opened and the other valve 19a is opened.
In the state where b is closed, the light-colored paint 17a in the paint tank 18a is sucked up by the paint pump 15 through the suction pipe 16, and from there, through the hose 14 and the spray gun 13.
Is sprayed on the upper surface of the roof tile 1 ...

Next, after a predetermined time has passed, one valve
Close 19a and open the other valve 19b, this time the paint tank
Dark paint 17b in 18b is sucked up by the painting pump 15 and remains bright inside.
17a gradually mixes and changes to an intermediate color, which passes through the hose 14 and is sprayed from the spray gun 13 on the roof tile 1.
It is sprayed on the upper surface of. After this, the paint 17b sucked up from the suction pipe 16 to the paint pump 15 is all dark in color, so the roof tile 1 undercoated from the spray gun 13 ...
The paint 17b sprayed on the upper surface of the above is all overcoated with a dark color tone. Looking at this state, open one valve 19a again,
The other valve 19b is closed, and the valves 19a and 19b are alternately alternated.
To switch.

Two spray guns 13 are mounted at a front and back with a space therebetween. The spray guns 13 reciprocate left and right by the guide rails 12 as shown by the arrows in FIG. 3, and the roof tiles 1 are carried by the conveyor 2. Therefore, when the color tone of the sprayed paints 17a, 17b changes with the passage of time, the adjacent roof tile 1 ... is overcoated with a color tone that is continuously changed from a light color tone to a dark color tone on top of a light color undercoat. It Therefore, if the roof tiles 1 are arranged in 6 rows on the conveyor 2 and the valves 19a and 19b are switched every 5 stages, the color tone is repeated every 30 sheets. In other words, each of the 30 roof tiles 1 ...
It will be formed in the ratio of one sheet.

As shown in FIG. 1, the roof tiles 1 ... In which the color tone is continuously changed in this manner are guided to the baking chamber 7 and baked there, and then the cooling fan 8 of the cooling unit 9 is further added. It is cooled by and is packed in several sheets at the take-out section. After that, it is stored in a warehouse, transported to the site according to the order, and becomes even more random when stacked on the roof at the site. In this way, the roof tiles are piled on the roof, and the roof tiles are piled up one by one. Therefore, as compared with the conventional method of roofing several types of roof tiles painted in a single color while considering the color arrangement, the roof tiles can be taken one by one in order from the top and the workability can be improved. . In addition, since the color tone of one roof tile 1 is different on the left and right of the surface, the border is not linear like the conventional tile pattern and becomes unclear even when viewed closely, and it has an antique-like solid feeling. You can give the atmosphere you had.

In the above description, the case where the two-color paints 17a and 17b are used is shown, but it is also possible to combine the colors of the same color system such as light blue and dark blue, or to use three or more colors. It may be combined. Further, as the valve, a valve which is automatically switched at a predetermined time by a timer may be used. In addition, the roof tile 1 to be painted is not limited to the roof tile,
It can be applied to the coating of any roof tiles such as flat roof tiles and colonial roof tiles.

[0014]

EXAMPLES In the apparatus shown in FIG. 1, six sheets were arranged in a row on the conveyor 2 which traveled 50 cm per minute, and were conveyed into the apparatus from the carry-in section. At this time, the first paint booth 4 undercoats the light orange paint 17 and prints it in the baking chamber 5, and then the second paint booth 6 uses the light orange paint 17a and the dark green paint 17b. , Valves 19a and 19b are alternately switched every 3 minutes to change the coating pump 15
While mixing inside, the color was continuously changed from orange to green to apply a top coat, and then baked and cooled to complete the product. When the roof tiles were painted in this way, the working time was reduced by 30% or more compared to the conventional one, and the tiled roof pattern was randomly blurred with unclear borders. A calm atmosphere with a profound feeling was obtained.

[0015]

As described above, according to the roof tile coating method of the present invention, a plurality of roof tiles are arranged orthogonally to the traveling direction of the conveyor, and after undercoating is performed in the first coating booth, While mixing paints of different colors with a painting pump, spraying from multiple spray guns that reciprocate orthogonally to the traveling direction of the conveyor and applying top coating, roof tiles with continuously changing colors can be obtained. By roofing this on a roof, it is possible to easily form an antique-like, tiled roof with a calm atmosphere and improve workability.

[Brief description of drawings]

FIG. 1 is a sectional view showing a schematic configuration of a coating apparatus of the present invention.

FIG. 2 is an enlarged sectional view showing a second coating booth in FIG.

FIG. 3 is a plan view showing a state where roof tiles arranged on a conveyor in the second coating booth shown in FIG. 2 are being overcoated.

[Explanation of sign]

 1 roof tile 2 conveyor 3 preheating chamber 4 first coating booth 5 baking chamber 6 second coating booth 7 baking chamber 9 cooling unit 13 spray gun 15 coating pump 16 suction pipe 17a paint 17b paint 18a paint tank 18b paint tank 19a valve 19b valve

Claims (2)

[Claims] 1. A plurality of roof tiles are arranged orthogonally to the traveling direction of the conveyor, preheated to perform undercoating in the first coating booth, and after baking the roof tiles, the roof tiles are moved in the traveling direction of the conveyor. A spray gun that reciprocates in a direction orthogonal to the guide gun was guided to a second coating booth mounted above the conveyor, the spray gun was connected to a coating pump via a hose, and a suction pipe was inserted at the lower end into a coating tank. Connect to a painting pump, branch the suction pipe into multiple branches, and install valves here.In addition, insert each suction pipe into a paint tank containing paint of a different color, and switch the valve every predetermined time to paint. Is sucked into the coating pump, mixed here, and overcoated on the upper surface of the primed roof tile that is transported from the spray gun in the second booth while continuously changing the color over time. A method of painting roof tiles that is characterized by: 2. The method for coating roof tile according to claim 1, wherein a paint having a lighter color tone than the paint for applying the undercoat is used as the paint for applying the undercoat.