JPH09192547A - Coating spray gun apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating spray gun apparatus which can form a natural stone style surface by a method in which a cross section in the plane direction has at least three substantially rectangular tank parts and a jet nozzle part connected directly with the lower part of each tank part, and each jet nozzle part is installed with the focus deviated to spray coating materials in a non- mixing multicolor form. SOLUTION: A spray gun is composed of tank parts 3a-3c with a substantially rectangular cross section in the plane direction, a taper-shaped part of the lower part of each tank part, and jet nozzles 5a-5c located below it. Since each of the tank parts 3a-3c is connected directly with each of the jet nozzles 5a-5c, the precipitation and retention of coating materials 4a-4c are prevented in an intermediate process, the coating material ejected from each tank part is ejected under maintaining uniform components. Especially, when aggregate of large specific gravity, for example ceramic which is burned with pigment and crushed appropriately, is used as the coating material, it is advantageous.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating spray gun device used for surface treatment of buildings.
More specifically, ordinary buildings, blocks, PCs
The present invention relates to a coating spray gun device used for building materials such as plates, ALC plates, and wall plates.

[0002]

2. Description of the Related Art Conventionally, natural stones have been often used for finishing outer walls of buildings because of their beautiful appearance and weather resistance. For example, a method of using granite or marble as it is for a wall or a pillar, or a method of forming it into a thin plate shape and attaching it to an outer wall or the like.

As another method, a building finishing material (coating material)
As a method for coating the outer wall and the like, there have conventionally been a trowel coating method, a roller method, a spraying method and the like. The iron coating method is a method that has been used for a long time to apply finishing materials with a soldering iron. In the roller method, a roller is used instead of a trowel, and the roller can be applied three-dimensionally to some extent by providing unevenness on the roller. The spraying method is a method of spraying from a spray gun using the jetting force of compressed air.

In the conventional spraying method, the finishing material (material) is put in the only tank of the spray gun and sprayed, so that even if the mixed material is adjusted to various colors, it becomes a mixed single color, and granite It was difficult to obtain a color similar to that of natural stone. Of course, double-spraying and the like is a meaningless method to show the aesthetics of natural stones such as granite, because the finishing materials overlap and appear only in the color of the last applied material. Furthermore, the paint and coagulant, etc. are held in separate tanks, and they are sprayed from two nozzles to coagulate where they are applied.
A spray gun that prevents condensation in the tank has also been proposed. However, it was difficult for this spray gun to obtain the beauty of natural stones such as granite.

As still another conventional example, three partition plates are provided in a cylindrical tank and divided into three chambers, a paint and a curing agent are separately put in each of the divided chambers, and the paint and the curing agent are injected from an injection nozzle. There is a proposal to mix the coating material and the curing agent on the coated surface by applying the coating (Act. 55-91).
971).

[0006]

However, the natural stones such as the above-mentioned conventional granites are very few in recent years, and most of them are imported, which is expensive due to transportation costs and the like. Of course, some are domestic, but they are more expensive.

Further, by using a spraying device having a cylindrical tank proposed in Japanese Utility Model Laid-Open No. 55-91971,
Even if the coating materials with different color tones are spray-applied, the coating materials are mixed on the coated surface and become a uniform color, making it difficult to obtain the aesthetics of natural stones such as granite. There is also a problem that a connecting pipe for connecting the internal division chamber and the nozzle is required, and the coating material settles and accumulates there.

Therefore, as an alternative to this, finishing materials for outer walls, floors, columns, inner walls, etc. of various buildings (those attached to the surface or applied) have been proposed and used. Natural stones do not have the unique aesthetics of natural stones, and natural stones are often used as before even if they are expensive. Therefore, in the building industry and the like, there has been a long-felt need for a building which has the same aesthetics as natural stones such as granite, and which can be easily manufactured at low cost, and a manufacturing method thereof.

In order to solve the above-mentioned conventional problems, it is an object of the present invention to provide a spray gun apparatus for coating, which sprays coating materials in a non-mixed multicolor form to form a natural stone-like surface. .

[0010]

In order to achieve the above object, the coating spray gun device of the present invention has a natural stone tone by spraying coating materials of three or more colors containing an aggregate and a synthetic resin separately and simultaneously. A spray gun device for forming a surface, wherein the spray gun device comprises at least three tank parts each having a substantially rectangular cross section in a plane direction, and the spray nozzles are directly connected to a lower portion of each tank part. And each of the spray nozzles is installed with a defocused position in order to spray the coating material in a non-mixed multicolor form.

In the coating spray gun apparatus of the present invention, it is preferable that the lower portion of each tank portion is formed in a tapered shape. Further, in the coating spray gun device of the present invention, it is preferable that the aggregate includes a ceramic that is fired together with the pigment and is appropriately pulverized.

In the coating spray gun device of the present invention, the synthetic resin is preferably an acrylic emulsion. As a result of earnest research, the present inventor has made a plurality of spray gun tanks and spraying nozzles, put materials adjusted to different colors in each tank, and put each material from each nozzle so as not to mix in the tank. The method of coating was invented.

A feature of the present invention is that a plurality of kinds of mixed materials having different colors are prepared by mixing ceramics, which are fired together with pigments and appropriately pulverized, into a synthetic resin, and separate plural kinds in a spray gun. The point is that random mixture materials are applied in non-mixed multicolored form by preparing them in tanks and simultaneously spraying the plural kinds of mixed materials from separate spray openings of a multi-head spray gun having a plurality of spray openings. This will give the appearance of natural stone such as granite.

[0014]

FIG. 1 shows an embodiment of a spray gun used in the method of the present invention. This spray gun has a tank section (3
a), (3b), (3c), a tapered tapered portion at the bottom of each tank portion, and injection nozzles (5a), (5b), (5c) below the portion. With this configuration, the tank portions (3a), (3
b) and (3c) and the injection nozzles (5a) and (5)
Since each of b) and (5c) can be directly connected,
The coating material does not settle and accumulate in the intermediate steps. Also,
Since the injection nozzles are directly connected to the lower portion of each tank portion (without using a pipe or the like), the coating material ejected from each tank portion is ejected while holding a uniform component. It is particularly advantageous when an aggregate having a high specific gravity, for example, a ceramic which is fired together with a pigment and appropriately pulverized is used as a coating material.

In the above apparatus, the tank (3a),
Material A (4a) and material B are added to (3b) and (3c), respectively.
(4b), material C (4c) is put. Those materials are
Injection nozzles (5a), (5b), which are entrained in the compressed air,
It is injected from (5c).

In this case, the angles of the respective injection nozzles are adjusted so that they are concentrated at almost one point. But,
In fact, if you concentrate on exactly one point, the three color materials will be mixed,
Alternatively, the effect is diminished because they are laminated to form one color. Therefore, the respective injection nozzles are installed with their focal points slightly shifted.

Further, since the body portion of the tank portion of the spray gun device is provided with a handle, it is convenient for application work. In this example, a method of using a three-head spray gun is shown, but this is also the same for any number of heads depending on the type of color of the mixed material.

[0018]

EXAMPLES First, a method for producing a mixed material for application using the spray gun device of the present invention will be described. The mixed material is an aggregate made by firing clay mixed with a pigment at a high temperature and crushing it so as to show an appropriate particle size distribution, or mixing variously pulverized materials so as to show an appropriate particle size distribution, This is mixed with a synthetic resin (preferably a synthetic resin emulsion).

This is the content of the admixture used in the present invention, which includes a thickener for improving workability, a pH adjusting agent for protection (rust prevention) of the container during storage, A defoaming agent or the like may be added.

Next, the constituent components of one embodiment of the mixing material used in the apparatus of the present invention will be shown. (1) Ceramics 61.60 parts (2) Acrylic emulsion (solid content 50%) 25.20 parts (3) Thickener (hydroxymethyl cellulose) 11.35 parts (4) pH adjuster (ammonia water) 0.17 Parts (5) antifoaming agent (alcohol-based) 0.03 part (6) film-forming aid (alcohol-based) 0.39 part (7) water 1.26 parts where parts are parts by weight. The film forming aid is for lowering the temperature of the transparent film forming of the emulsion.

The synthetic resin used in the present invention is preferably an emulsion type resin, most preferably an acrylic emulsion. Of course, other emulsion type, epoxy type and urethane type ones can also be used.

In the present embodiment, a thickener, a pH adjuster, a defoaming agent, a film-forming aid and the like are mixed for the sake of workability and convenience of storage. It is not an essential component.

As a method for producing the aggregate in the present invention, clay is mixed with a pigment having an appropriate color, such as iron oxide or zinc oxide, and the mixture is mixed at any temperature, for example, several hundreds of degrees Celsius to 1400.
It is a ceramic that is fired at a temperature of about ℃ and crushed.

Next, regarding the particle size distribution of the aggregate, which can be freely selected depending on the expression of the pattern, the following particle size distribution was adopted in this embodiment due to its strength and aesthetics.

Mesh distribution 3 to 20 30 (wt%) 20 to 200 40 (wt%) 200 to 350 30 (wt%) When such a particle size distribution is adopted, the finish material has high crack strength and weather resistance. Excellent in appearance and has an appearance very similar to natural stones such as granite.

Next, a coating method using the spray gun device of the present invention will be described. In the present invention, a spray gun has a plurality of tanks and spraying nozzles, and materials adjusted to different colors are put in the respective tanks so that the materials do not mix in the tanks, and the respective materials are applied from the respective nozzles. .

In this way, it is possible to apply multiple colors without being mixed in the tank to form one color. Next, an example of the surface of a building treated by using the device of the present invention will be described in detail based on an embodiment shown in the drawings. FIG. 2 is a plan view of the outer wall of the applied building. In this example, a mixed material using ceramics of three colors (black, gray, and white) is applied in an unmixed multicolored state. The term "non-mixed multicolor" as used herein means that mixed materials having different colors are applied so that the colors do not mix with each other. Especially in this example, it is applied at random. In this way, since the coating is done not at regular intervals but at random, the appearance is almost the same as the so-called black shadow and is very beautiful.

Further, since ceramics is mixed with synthetic resin, it is possible to apply the coating a little thickly and flatten the surface with a grinder or the like. FIG. 3 is a partially enlarged view of FIG. Black part (1a), gray part (1b) of finishing material,
The white portion (1c) is composed of black fine particles (2a), gray fine particles (2b), and white fine particles (2c), respectively.
However, the human eyes are hardly aware of the respective fine particles, and the colored portions (1a), (1b), and (1c) are recognized as one body, and therefore, they have the same appearance as natural stones such as granite.

In this example, there are three colors, but two colors or four or more colors are of course possible. Since ceramics are used as the aggregate of the finishing material used in the device of the present invention,
It has excellent weather resistance and is comparable to conventional natural stones.

The aesthetic appearance is a very important factor in the appearance of a building. When used in the apparatus of the present invention, a pigment is mixed before firing the ceramics,
Since they are both fired, it is almost the same as coloring the ceramics themselves, and unlike those that are simply colored on the surface, it is very close to the color of natural stones such as granite and becomes beautiful. Moreover, the pigments can be mixed freely and the ceramics can be mixed freely. Of course, it is easy to reveal artificial beauty that is completely different from natural stones such as granite.

When the above-mentioned materials are applied to blocks, PC boards, wall boards, etc., a building having an appearance similar to natural stones such as granite can be obtained by simply adhering them on site. Further, when it is applied to a building material in this way, the application can be performed in advance in a factory or the like, so the construction period is significantly shortened. Also, the influence of weather such as rain is small.

It is one of the features that a building surface-treated by using the apparatus of the present invention can have an appearance almost similar to that of natural stone such as granite. As shown in FIG. 2, the colored mixed material is
It can be expressed by applying it in a non-mixed multicolor form. In other words, if they are mixed sufficiently, they will become one color after mixing, and if they are applied in layers, they will become the last color. Applying while preventing this is the premise of the building obtained by the present invention.

As described above, the coating method using the spray gun device according to the embodiment of the present invention has the following advantages. Since the coating materials of a plurality of colors are not mixed before spraying and the colors are not uniform, the colors are close to those of natural stone such as granite having a sparse pattern. Since the spraying is performed from the separate spraying ports, the separation of each color is more reliable. Since it can be manufactured from synthetic resin and ceramics, the supply of raw materials is stable and the cost does not fluctuate.

[0034]

As described above, according to the spray gun device of the present invention, since each of the tank portions and each of the injection nozzles are directly connected, the coating material does not settle and accumulate in an intermediate step, The coating material sprayed from each tank portion is sprayed while holding a uniform component. It is particularly advantageous when an aggregate having a high specific gravity, for example, a ceramic which is fired together with a pigment and appropriately pulverized is used as a coating material. In addition, a random mixture can be applied in a non-mixed multicolor form,
This makes it possible to finish the appearance of natural stone such as granite.

[Brief description of the drawings]

FIG. 1 is a perspective view of a spray gun device according to an embodiment of the present invention.

FIG. 2 is a plan view of a surface showing an example of a building surface-treated by a coating method using the spray gun device of the present invention.

FIG. 3 is a partially enlarged view of FIG.

[Explanation of symbols]

 1a Black part 1b Gray part 1c White part 2a Black fine particle 2b Gray fine particle 2c White fine particle 3a, 3b, 3c Tank 4a, 4b, 4c Material 5a, 5b, 5c Injection nozzle

Claims (4)

[Claims] 1. A spray gun device for coating, which sprays coating materials of three colors or more containing an aggregate and a synthetic resin separately and simultaneously to form a natural stone-like surface, wherein the spray gun device is a flat surface. At least three tank parts each having a substantially rectangular cross section in the direction are provided with an injection nozzle part directly connected to a lower portion of each tank part, and each injection nozzle part has a multicolored state in which a coating material is not mixed. A spray gun device for painting, characterized in that it is installed with a defocused position in order to spray onto the surface. 2. The coating spray gun device according to claim 1, wherein the lower portion of each tank portion is formed in a tapered shape. 3. The spray gun apparatus for coating according to claim 1, wherein the aggregate includes ceramics that have been fired together with a pigment and appropriately ground. 4. The coating spray gun device according to claim 1, wherein the synthetic resin is an acrylic emulsion.