JP2000140723A - Method and apparatus for coating of building material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve an inconvenience of field coating, make a protective tape useless and raise efficiency of production of multiple kinds in each small amount by providing a group of a plurality of nozzles wherein multiple kinds of coating agents are simultaneously ejected while reciprocated in a direction different from a conveying direction toward a material to be coated which is continuously transferred by a conveying means. SOLUTION: Materials 1, 11 to be coated are successively bonded, placed on a conveying apparatus 7, and continuously sent in a coating room 20. A group of nozzles 21 provided in the coating room 20 has a plurality of nozzles 211, 212< reciprocating at a specific speed in synchronism with a transfer speed of the conveying apparatus 7 in a direction normal to a transfer direction of the materials 1, 11 by a nozzle supporting tool transfer mechanism 26. Coating material is fed to respective nozzles 211, 212... from a pump 221... via a conduit 231.... Transfer of the nozzle and feed of the coating material are controlled by a variable adjuster 28 of a controller 27. Coating materials having colors which are different from each other are fed to adjacent nozzles in a transfer direction of the nozzle support tool.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called interior / exterior panel (hereinafter simply referred to as "material") which is advantageous for forming an interior / exterior horizontal wall and a vertical wall in a building structure. The present invention relates to a method and an apparatus for coating a material including a board, a concrete panel or a gypsum board.

[0002]

2. Description of the Related Art As this kind of material conventionally used, there is one disclosed in Japanese Patent Publication No. 5-58106. These materials are generally formed by bending aluminum, iron, and stainless steel, and in some cases, have a back surface laminated with insulating material such as polyurethane foam,
In addition, there is also a case where a surface of a core material such as a gypsum board is subjected to a decorative finish in advance. There are joints at both ends in the longitudinal direction of this material, for example, a joint portion is provided on one side and a joint groove is provided on the other side, and the joint groove and the joint groove of each material are sequentially joined. Used as wall material for houses and the like. However, in the conventional product, a relatively thin coating is applied to the surface of the material, and a desired material is selected and used depending on the coloration of the coating agent (paint). In some cases, a material provided with irregularities by sheet metal processing on the surface of the material is also provided. In addition, there are some which have been particularly subjected to a surface treatment as described above. Thus, these materials are used at a construction site while being appropriately cut and adhered to a wall surface of a house or the like.
By the way, recently, the diversification of buildings has progressed, and the design characteristics of the wall surface have been required, and painting using aggregates (mixing sand or granular materials into the coating agent to create a three-dimensional appearance, Textured (indicating a unique surface) has been sought after. If the material coated with this aggregate is applied to the entire surface of the material, the fitting of the joints between the materials will be poor and it will cause rainwater to enter. Protective measures must be taken before aggregate coating to prevent this from happening. Alternatively, at the construction site, aggregate coating may be performed after completing the assembly of the material.

[0003]

As described above, the conventional material must be thinly rust-proof painted and assembled on site, and then spray-painted. In this case, the joints are already overlapped. Therefore, there is no need for protection, but it is necessary to protect the surrounding buildings, such as windows and pillars, which are made of laminated materials, from the coating agent, which requires a great deal of labor and cost. Becomes Further, there is a concern that the coating agent may be scattered to nearby buildings and automobiles, which is a factor of pollution. In addition, since spray coating is performed on site, a skilled worker must be involved in performing uniform spray coating, which is a factor that causes inconvenience. On the other hand, it is conceivable to provide a material which has already been subjected to an aggregate coating to the site without performing on-site painting, and provide a material which can be processed simply by cutting. In this case, although the above-mentioned drawbacks related to the painting performed at the site can be solved, at the time of coating the material, it is necessary to take measures to protect the application of the aggregate paint at the joint portion of each material. A tape or the like is stuck on the sleeve or the joint groove of the material that is the joint part to protect it, and then the aggregate paint is applied one by one and dried, and the protective tape is peeled off, which is inefficient. Not only that, the tape to which the paint has adhered must be treated, and simply burning it causes air pollution, which is a factor causing pollution. Furthermore, when applying various designs and patterns when painting the material, when using a single color coating agent, it is necessary to prepare a large amount of various types of coating agents, and inventory management becomes complicated, It causes high cost.
In addition, in order to produce a large variety of products in small quantities, it is necessary to replace the coating agent every time the color or pattern is changed, and the work and the loss of the material occur.

[0004]

According to a first aspect of the present invention, there is provided an apparatus for coating a building material, comprising: transport means for continuously transporting a material to be coated; and a coating agent for transporting the material by the transport means. Coating means comprising a plurality of nozzle groups for ejecting the nozzles, wherein the nozzle groups reciprocate in a direction different from the transport direction of the transport means, and a means for simultaneously supplying a different type of coating agent to each nozzle. It is what you have.

[0005] The building material coating apparatus according to the second invention is
In the first invention, the nozzle group is supported by a nozzle support device that reciprocates at a predetermined speed in synchronization with the transfer speed of the transfer unit.

[0006] The coating device for building materials according to the third invention is:
In the first and second aspects of the present invention, the nozzles are arranged vertically and horizontally on the nozzle support device so that different colors of coating agent are supplied to adjacent nozzles in the nozzle movement direction.

According to a fourth aspect of the present invention, there is provided an apparatus for coating a building material.
In the first to third inventions, the coating agent is a mixture of a granular material including an aggregate.

According to a fifth aspect of the present invention, there is provided a building material coating apparatus.
In the first to third inventions, when each material is transferred by the transfer device, the connecting portion provided on one side in the longitudinal direction of the first material is connected to the connecting portion provided on the other side of the second material. Are transported in a state where they are combined in advance, and have means for separating after coating.

According to a sixth aspect of the present invention, there is provided an apparatus for coating a building material,
In the fifth invention, the material has means for applying a finishing agent after the coating material is dried and then unbonded.

According to a seventh aspect of the present invention, there is provided a building material coating apparatus,
In the first and second inventions, a transport device driving mechanism, a nozzle support device moving mechanism, and a coating material supply mechanism to each nozzle are provided, and a control device that controls these mechanisms includes:
A variable adjusting device is provided.

[0011] The method for coating a building material according to the eighth invention is characterized in that:
A nozzle group for placing the material to be coated on the transfer device for continuous transfer and ejecting the coating agent toward the transferred material is reciprocated in a direction different from the transfer direction of the transfer device. At the same time, different types of coating agents are simultaneously supplied to each nozzle.

According to a ninth aspect of the present invention, there is provided a method for coating a building material,
In the eighth invention, the nozzle group reciprocates at a predetermined speed in synchronization with the transfer speed of the transfer device.

[0013] A method for coating a building material according to a tenth aspect of the present invention comprises:
In the eighth and ninth inventions, the coating agent supplied to each of the nozzles supplies a different color coating agent to nozzles adjacent to each other in the moving direction of the nozzle.

According to an eleventh aspect of the present invention, in the method for coating a building material according to the eighth to tenth aspects, a granular material including an aggregate is mixed in the coating agent.

According to a twelfth aspect of the present invention, in the construction material coating apparatus according to the eighth to eleventh aspects, each material transferred by the transport device is provided on one side in the longitudinal direction of the first material. The sleeve provided on the other side of the second material is transferred to the connecting portion in a state where the sleeve is previously connected, and is separated after coating.

According to a thirteenth aspect of the present invention, in the method for coating a building material according to the twelfth aspect, the material is unbonded after the coating material is dried, and a finishing agent is further applied.

[0017]

In the method and apparatus for coating a building material according to the first and ninth aspects of the present invention, in order to provide a low-cost building material having a thick decorative coating applied to its surface except for the joints of the material, Each material is continuously supplied to the transport device in a state where the materials are combined in advance, and the material is coated toward the integrated material and uniformly applied to the entire material. Since different kinds of paints, for example, of different colors are simultaneously ejected from the nozzle group, the paint is applied to a predetermined pattern while mixing the colors or changing the pattern. After drying, the materials are uncoupled again, and the materials are separated and shipped for delivery. Therefore, at the construction site, the materials are simply combined and used, and the surface of the materials does not need to be separately spray-painted. Further, at the time of production of the raw materials, there is no need to attach a protective tape or the like for protecting the joint portion of each raw material from the coating agent, so that the efficiency is improved. In the method and apparatus for coating a building material according to the second and tenth aspects, the pattern applied to the material can be set to a predetermined pattern for coating. In the method and apparatus for coating a building material according to the third and eleventh aspects of the invention, a plurality of nozzles are prepared, and these are simultaneously supplied with paints of different colors in the moving direction. Can be applied uniformly according to By changing the amount of paint supplied to each nozzle, the pattern (pattern) to be applied can be changed, and the inconvenience of having to extract all the paint to change the design can be eliminated. Since the nozzle group reciprocates in the longitudinal direction of the material, the paint is applied with a certain thickness and pattern in combination with the moving speed of the material transfer device, so that a certain quality can be maintained. Further, coating unevenness does not occur as compared with hand coating. Furthermore, since it is applied from the upper part of the conveying device toward the upper surface of the material, a relatively heavy aggregate paint is used.
There is no sagging of the paint as compared with the case where the material is applied vertically. In the method and apparatus for coating a building material according to the fourth and eleventh aspects of the present invention, a granular material including an aggregate is mixed into a coating agent, so that the surface of the material can be roughly expressed, and the house can look luxurious. In addition, when the raw materials are used on site, there is no such aggregate at the joint between the raw materials, so that the raw materials can be easily attached to a house or the like. In the method and apparatus for coating a building material according to the fifth and twelfth inventions, at the time of placing on a transfer device, a connecting portion on one side in the longitudinal direction of the material is connected to a sleeve on the other side of the next material. Is continuously supplied while being bonded, and separated after coating, so that a thick paint does not adhere to the bonding portion, which is convenient for handling at a construction site.
In addition, since the paint is continuously supplied, the painted surface is wide, and even if the paint scatters, the paint adheres to the material again, so that the loss of the paint as a whole is small. In the method and apparatus for coating a building material according to the sixth and thirteenth inventions, after applying the coating including the aggregate, the materials are separated from each other, and the finishing agent is applied. And can withstand environmental changes. In the seventh invention, a transport device driving device,
A variable adjustment device is provided in the nozzle support device drive mechanism and the control device for the paint supply mechanism (pump) to each nozzle. These drive capabilities are adjusted to adjust the adhesion state of paint, the design of the pattern, or the color. Can be performed.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 3 and 4, reference numeral 1 denotes a material used as a building wall material, which is formed by, for example, bending a metal plate such as aluminum, iron, or a stainless steel plate, and connected to one side in the longitudinal direction. A groove 2 having a sleeve 3 on the other side, and a back surface filled with foamed polyurethane 4 if necessary, and the outer surface thereof is made by sticking an aluminum foil 5 to make up the material. This is a so-called siding board that is used by fitting the sleeve 1 to the connecting groove 22 of the other material 11 and connecting them in order. The surface of the material 1 is subjected to an appropriate surface treatment. The raw material 1 is also non-metallic, for example, a gypsum plate that has been subjected to a surface treatment, and is provided with coupling grooves 2 and sleeves 3. The surface is colored if necessary. An uneven pattern (not shown) is provided on the surface of the material. FIG. 1 shows a method and an apparatus for coating a building material according to the present invention. The apparatus has a conveyor device 7 made of, for example, a conveyor belt or a chain which is conveyed at a constant speed. 11
However, the sleeve 3 and the coupling groove 2 are sequentially coupled and placed. Thus, the materials 1 and 11 are continuously fed into the coating room 20 by the transport device 7. In the coating chamber 20, there is a group of coating nozzles 21 arranged on the transporting device 7 and facing the material. The nozzle group 21 has a plurality of nozzles and is supported by the nozzle support 8. . The nozzle support 8 is reciprocated by the moving mechanism 31 at a predetermined speed in a direction perpendicular to the moving direction of the material on the conveying device 7 in synchronization with the moving speed of the conveying device. 221, 2
22, 223 and 224 are nozzles 211, 212 and 2 respectively.
13 shows a pump which is a coating agent supply mechanism for feeding paint to the substrates 13 and 214. 231, 232, 233, 2
Numeral 34 is a conduit made of a flexible material for transferring paint. Reference numeral 25 denotes a transport device driving mechanism. Then, the transport drive mechanism 25, the nozzle support moving mechanism 26, and the coating material supply mechanisms 221, 222, 223, 22
The variable controller 28 is provided in the controller 27 for controlling the control unit 4. FIG. 5 shows that each nozzle 2
This figure shows an arrangement state for mounting 11, 212, 213, 214. For example, two pieces are provided vertically and horizontally in the moving direction of the nozzle support member 8 and two pieces in the traveling direction of the transfer device. The supply of the coating agent to this nozzle is the same color on the diagonal line. In the coating room 20, the nozzles 211, 212,
From 213 and 214, paint is spray-painted, respectively. At this time, the paint is protected from entering the sleeve 3 and the connecting groove 2 which are the connecting portions of the respective materials 1 and 11 by the mutual connection. Further, the uneven pattern on the surface of the material 1 is also uniformly coated on the entire surface. As the paint to be sprayed at this time, sand, a granular plastic material, or an aggregate paint containing an aggregate corresponding thereto is used. Thus, in supplying the coating agent (paint) to each nozzle, paints of different colors are supplied to adjacent nozzles in the moving direction of the nozzle support. For example, the nozzle 211
Is white and the nozzle 212 is gray. The color adjustment is performed by adjusting the amount of paint supplied to the nozzle and the amount of compressed air that ejects the paint. Further, the pattern (pattern) to be applied can be changed depending on the transfer speed of the transfer device and the drive speed of the nozzle support mechanism. Material 1
Nozzles 211, 212, 213, 21 located above
Even if the viscosity of the paint sprayed from 4 is weakened, the paint applied to the material does not flow on the material because the materials are arranged horizontally, so that the production speed can be increased. next,
The raw materials 1 and 11 conveyed from the coating room 20 are
And the surfaces of the materials 1 and 11 are dried by hot air to harden the paint. The materials 1 and 11 conveyed and delivered from the drying chamber 23 are separated from their joints, and then subjected to finish painting and delivered to the market. This finish coating protects the aggregate paint and makes it more firmly adhered to the material. In the method and apparatus for coating a building material of the present invention, in the drying step in the drying chamber, the materials 1, 1
In order to protect the heat insulating material, such as polyurethane foam, which is focused on the back surface of 1 from a high temperature, the temperature of the drying air is set relatively low, the amount of air is increased, and the drying time is shortened. 24
Indicates a blowing fan. The heat source is not shown. FIG.
1 shows a process diagram of a method and an apparatus for coating a building material according to the present invention. In a first step, each of the materials 1 and 11 is separately loaded and subjected to undercoating. This is performed in order to increase the adhesion between the paint and the fabric in the next step. The second step is the drying of the undercoat. In some cases, the first and second steps may be omitted. Either the material has already been primed or the material is non-metallic. Next, in the third step, the materials are joined at the joints and the aggregate is painted, and the materials in the coating room are placed on the transport device in advance so that they are in a state like a single sheet as a whole. To the painting room. Although the coating is performed in the coating room, as described above, since the joints overlap each other, the entire material is uniformly coated without being subjected to the aggregate coating. The color of this aggregate is adjusted by the amount of paint or compressed air discharged from each nozzle, and the pattern is adjusted by adjusting the moving speed of the nozzle support or the conveying speed of the conveying device. The adjustment of the color and the pattern is performed in advance by the variable adjusting device of the control device described above, and how much and what color or pattern (pattern) is obtained is managed by data. The fourth step is the drying of the aggregate coating,
The drying takes longer than in the previous second step.
After this fourth step, the raw materials are cut off from the joints, and the fifth step is again applied with a finish coat. This finish coating enhances weather resistance and stain resistance, and prevents the peeling action of the aggregate, and is almost transparent. In the sixth step, drying is performed to cure the finish. Each material is packed and shipped after drying. In the above step,
In the first step, several kinds of paints are switched, and in the third step, several kinds of aggregates are also switched. In the fifth step, a specific finish is used.

[0019]

FIG. 6 shows another embodiment of the present invention, which is effective when the conveying device 7 cannot be made too wide for the material. That is, according to the moving direction of the transport device 7,
This is the case where the materials 1 and 11 are arranged in the longitudinal direction.
Several sheets are arranged in a connected state in the width direction of the transport device. By continuously flowing this combined set of materials, the initial purpose is achieved, with each material being free of paint on its respective joint. But,
In this case, for the material located at the end of the transport device,
It becomes necessary to apply a coating treatment to the portion 3 of the sleeve or the coupling groove 2. In this regard, the present embodiment is more effective than the previous embodiment, even though it has a defect, but is covered with a joint portion for each material. In this coating process, a fixed cover (not shown) for preventing the paint from penetrating into the non-painted portion is provided in the coating room, or the material is positioned at the end or covered with the coupling groove and conveyed. Then, means such as peeling must be taken later.

[0020]

As described above, according to the present invention, in order to continuously transfer the material to be coated, the material is placed on the transfer device in a state where the overlapping margins of the materials are superimposed and conveyed. The nozzle group for spraying the coating agent toward the material,
Since the nozzles are reciprocated in a direction different from the transfer direction of the transfer device and simultaneously supply different types of coating agents to the respective nozzles, such as an aggregate paint in a state where the material is attached to a building. Thick coating can be applied,
The installer simply cuts the size of the painted material,
Eliminates the need for on-site painting. In addition, since painting is performed continuously on a flat surface, there is no waste of paint dripping, and high quality is maintained. Further, since different paints are simultaneously supplied to each nozzle, adjustment of colors and patterns for various kinds of designs can be easily performed, the number of kinds of paints can be controlled, productivity can be improved, and cost can be reduced. According to the second and ninth aspects of the present invention, the nozzle group is supported by the nozzle support that reciprocates at a predetermined speed in synchronization with the transfer speed of the transfer device. The amount of paint supplied to the material can be stably and uniformly applied to the material, and high quality and high efficiency can be maintained.

In the third and tenth inventions, each nozzle is
Distribute paints of different colors to adjacent nozzles in the direction of movement of the nozzle support. This makes it possible to prevent uneven coating and insufficient coating. It is also easy to apply the aggregate paint to the desired thickness by changing the amount of paint discharged from the nozzle and the amount of jet air, or changing the moving speed of the nozzle support and the transfer speed of the transfer device. Becomes
Furthermore, by switching the paint supplied from the nozzle, it is possible to quickly respond to market demands, which has a great industrial effect. In the fourth and eleventh inventions, since a so-called aggregate paint in which an aggregate is included in the paint is used, a design effect having many irregularities on the surface of the material can be exhibited, and the type of the aggregate can be expressed. It is possible to easily respond according to the order by appropriately adjusting the blending amount and the mixing amount, and to make the moving speed of the transfer device and the moving speed of the nozzle and the discharge amount of the paint or the discharge amount of these and the compressed air stable, and stable A large quantity of quality material can be supplied in a short time. According to the fifth and eleventh aspects, each material is in a state in which a joint provided on one side in the longitudinal direction of the first material is previously polymerized with a sleeve provided on the other side of the second material. Because it is phased and separated after painting, paint does not enter the polymerized part of each material, it is easy to assemble at the building site, and it is also possible to apply a sufficiently thick pattern at the time of painting It has a great design effect. Further, the coating area of the material is large, and the applied coating material can be economically finished without waste. According to the sixth and twelfth inventions, after applying the aggregate paint, after uncoupling the respective materials, by finishing each material, only to prevent the aggregate paint from peeling off. In addition, it is possible to increase the gloss of the material, and to apply this finish, it is possible to reduce the viscosity of the aggregate paint when performing the aggregate coating, and to improve the flowability of the paint in the conduit and nozzle. Raising the value can contribute to a production efficiency factory.

According to the seventh aspect, the transport device driving mechanism,
A control device that includes a nozzle support moving mechanism and a coating material supply mechanism to the nozzle, and controls these mechanisms includes:
Since the variable adjustment device is provided, by setting and adjusting the operation speed of each of these mechanisms in advance, it is possible to carry out stable coating and high quality coating, and to adjust various types of patterns and products with different colors. It can be provided over a wide variety of products, the number of types of materials can be reduced, and it is easy to manage and excellent in productivity.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a method and an apparatus for coating a building material according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a coating process of a building material coating method and apparatus according to the present invention.

FIG. 3 is a partial cross-sectional perspective view of a material that is a building material of the present invention.

FIG. 4 is a partially cutaway perspective view showing a method and an apparatus for coating a building material according to the present invention, and is a view showing a connected state between materials.

FIG. 5 is a partially cutaway perspective view showing a method and an apparatus for coating a building material according to an embodiment of the present invention.

FIG. 6 is a partially cutaway perspective view showing a method and an apparatus for coating a building material according to another embodiment of the present invention, showing a state of connection between the materials placed on the transport device.

[Explanation of symbols]

1, 11 ... material 2, 22 ... coupling groove 3 ... ... sleeve 4 ... polyurethane foam 5 ... ····· Aluminum foil 6 ································ Transfer device 8 ······· Nozzle support 20 ······ Coating room 21 ··· ... Nozzle groups 211, 212, 213, 214 ... Nozzles 221, 222, 223, 224 ... Pumps 231, 232, 233, 234・ ・ ・ ・ ・ Conduit 24 ・ ・ ・ ・ ・ ・ ・ ・ ・· Fan 25 ······ Transfer device driving mechanism 26 ····· Nozzle support moving mechanism 27 ···························· Variable adjustment device

Claims (13)

[Claims] 1. A conveying means for continuously transferring a material to be coated, and a coating means comprising a plurality of nozzle groups for ejecting a coating agent toward the material conveyed by the conveying means, wherein the nozzle A building material coating apparatus comprising: a group of means for reciprocating in a direction different from the transport direction of the transport means; and means for simultaneously supplying different types of paint to each nozzle. 2. The building material according to claim 1, wherein the nozzle group is supported by a nozzle support that reciprocates at a predetermined speed in synchronization with the transfer speed of the transfer unit. Painting equipment. 3. The nozzle support device according to claim 1, wherein each of the nozzles is arranged vertically and horizontally on a nozzle supporting device so that a different color of the coating material is supplied to adjacent nozzles in the nozzle movement direction. A coating device for building materials according to 1 or 2. 4. The coating apparatus for building materials according to claim 1, wherein said coating agent is a mixture of a granular material including an aggregate. 5. Each material transferred by the transfer device,
It is characterized in that it has a means to be transferred in a state in which a sleeve provided on the other side of the second material is previously connected to a connecting portion provided on one side in the longitudinal direction of the first material, and to separate after painting. An apparatus for coating a building material according to claim 1. 6. The coating apparatus for building materials according to claim 5, wherein the material is unbonded after the coating material is dried, and a finishing agent is further applied. 7. A control device for controlling each of these mechanisms including a transport device driving mechanism, a nozzle support moving mechanism, and a coating material supply mechanism for each nozzle, wherein a variable adjusting device is provided. An apparatus for coating a building material according to claim 1. 8. A group of nozzles mounted on a transport device for continuously transporting a material to be coated and ejecting a coating agent toward the material to be transported, the nozzle group being arranged in the transport direction of the transport device. A coating method for a building material, characterized by reciprocating in different directions and simultaneously supplying different types of coating agents to each nozzle. 9. The method according to claim 8, wherein the nozzle group reciprocates at a predetermined speed in synchronization with the transfer speed of the transfer device. 10. The coating method for building materials according to claim 8, wherein each of the nozzles supplies a different color coating agent to nozzles adjacent to each other in the direction of movement of the nozzle. 11. The coating agent according to claim 8, wherein the coating agent is a mixture of a granular material including an aggregate.
How to paint building materials. 12. The material transferred by the transfer device,
9. The method according to claim 8, wherein a sleeve provided on the other side of the second material is transferred to a connecting portion provided on one side in the longitudinal direction of the first material in a state where the sleeve is previously connected and separated after painting. To 11 of the method of painting a building material. 13. The method for coating a building material according to claim 8, wherein the material is unbonded after the coating material is dried, and a finishing agent is further applied.