JPH07119510B2 - Architectural panel manufacturing method - Google Patents

Description

The present invention relates to a method for manufacturing a building panel.

In particular, it relates to a method of manufacturing a building panel having a sanded decorative surface.

(Prior Art) Conventionally, a large number of buildings having a sand-containing decorative surface in which sand is sprayed are known.

For example, an outer wall in which a mixture of sand and paint is sprayed on the outer wall surface is well known as a ricin outer wall.

Also, the inner wall of the Japanese-style room where the sand-filled Juraku soil is attached to the inner wall surface is known as the Juraku wall.

Further, it is also known that a decorative sheet produced by spraying sand and paint onto the surface of a sheet such as a vinyl chloride resin sheet is attached to the inner wall to form an inner wall having the same appearance as the Juraku wall.

Further, an asphalt single roofing material in which colored sand is sprayed on the surface of the asphalt sheet is also well known.

It is also known that the inner wall or ceiling of a Western-style room is sprayed with sand.

In this way, because the sanded decorative surface is suitable for buildings,
It is widely used for inner walls, outer walls, roofing materials, ceilings, etc. and is well known.

On the other hand, as a construction method of such a building, like a ricin outer wall and a Juraku inner wall, a wet method in which sand, soil, or lime is mixed with water is applied to a wall or the like, and this is dried or cured,
There is a dry method in which a building panel such as a wall panel is created in a factory in advance and is attached to a building. However, since the dry construction method has a short construction period and can produce good dimensional accuracy, it is being used more and more and is described in Japanese Patent Publication No. 49-46814, Japanese Utility Model Publication No. 49-31702, Japanese Utility Model Publication No. 50-1525. As such, numerous architectural panels have been invented and devised.

(Problems to be Solved by the Invention) Therefore, the inventor defines the surface of a building panel as a sand-containing decorative surface, and attempts to obtain a sand-containing decorative surface suitable for a building only by attaching it to the building. I made a plan, applied paint to the hard surface of the building panel, sprinkled sand on it, and pressed it with a roll from above so that this sand would not fall, but there was variation in the size of the sand, and this sand Could not be pressed uniformly, and the sand was pushed backward by this roll, and the sand moved on the uncured paint surface, so that a good building panel could not be manufactured.

It is an object of the present invention to provide a method for manufacturing a building panel having a sand-filled decorative surface without the above-mentioned drawbacks.

(Means for Solving the Problems) The present invention has been made to solve the above problems and achieve the above objects, and a paint is applied to the surface of a building panel while moving the building panel with its surface facing upward. After coating and providing a paint layer, sand is spread evenly on this paint layer to provide a sanding surface, and then this sanding surface is pressed by an elastic surface that moves at about the same speed as the operating speed of the building panel. .

In the present invention, the paint is applied to the surface of the building panel or sand is sprinkled while moving the building panel, but this moving method of the building panel is to move the building panel by placing it on a rotating roller. There are various methods, such as moving the building panel on a belt conveyor and moving it. All of these methods can be used in the present invention.

Various paints are used as the paint to be applied,
Acrylic paint with good weather resistance is the best. In particular, the emulsion type acrylic paint is most suitable because it does not use a solvent, has a low viscosity and is easy to handle.

There are various methods for applying the paint, such as an air spray method, an airless spray method, a roll method, a reverse roll method, and a flow coater method, and an optimum method is adopted depending on the kind of the paint. For example, when an emulsion type acrylic paint is used, an air spray method and a flow coater method are suitable.

In the present invention, sand is sprinkled on a building panel coated with this paint, and the sand used at this time is generally silica sand because it is the most readily available. The size of this sand is usually 0.5 to 3 mm in diameter, although it depends on the preference of the decorative surface.
Most of the sand is used.

In addition, the method of spraying this sand on the building panel is to spray the sand from the tip of the nozzle or to provide a slit at the bottom of the sand container, and drop the sand over the entire width of the building panel to spray it. There is a method, such as a method of moving sand from one side to the other in a pipe provided with a slit and dropping the sand evenly in the width direction of the building panel from the slit while the sand is moving. The method of dropping sand is preferable because it can be spread uniformly. In particular, the bottom of the container containing sand is provided with a slit having a length corresponding to the width of the building panel, and a rotary brush is provided so as to block the exit of this slit. Then,
It is preferable that a certain amount of sand is ejected from the slit so that the sand is dropped on the building panel because the sand can be evenly spread.

In the present invention, after the paint layer and the sand sprinkling surface are provided on the building panel as described above, the sand sprinkling surface is pressed by the elastic surface that moves at substantially the same speed as the moving speed of the building panel.

As the elastic body used for this elastic surface, a soft synthetic resin foam such as polyurethane foam or polyethylene foam, a soft rubber foam such as natural rubber foam, an elastic body such as soft rubber, or the like is used. Further, the above-mentioned foamed product whose front and back surfaces are covered with a cloth or a sheet is also used.

This elastic body is used as a roll or a belt. In particular, it is preferable that a soft synthetic resin foam such as a natural rubber foam, a polyethylene foam, or a polyurethane foam is attached to the surface of the roll or the belt to form an elastic surface.

When the soft foam is used as a belt, the foam may be used in the form of a belt. However, since the foam generally has a low tensile strength, a cloth, a sheet or other reinforcing material is provided on the back surface of the belt-shaped soft foam. It is good to stick.

This elastic surface presses the sanding surface of the building panel, but in the case of a roll, the roll surface speed is made the same as the moving speed of the building panel, the rotation axis is brought close to the building panel surface, and the sanding surface is pressed. Good.

In the case of a belt, a belt whose surface is elastic is hung between two pulleys to run the belt at the same speed as the moving speed of the building panel. You should hold down the surface of the panel.

Furthermore, as a good method, in place of the method of pressing with this pressing roll, a rod body is provided in a direction perpendicular to the moving direction of the building panel, and a plurality of roll pieces having a central hole larger than the rod outer diameter are provided on this rod body. There is a method in which the roll pieces are individually passed through so that each roll piece can move in the vertical direction, and the sanding surface is pressed through the belt by the weight of the roll pieces.

In this way, if you press the belt with a large number of roll pieces, even if the building panel is curved or the building panel surface is uneven due to the size of the sand, each roll piece follows this curvature and unevenness. It can move up and down and press down the panel surface evenly.

(Operation) In the present invention, a paint layer is formed by applying a paint to the surface of a building panel that is moving with its surface facing upward, and then sand is spread evenly on the paint layer to form a sanding surface. Is provided, and the sanding surface is pressed by an elastic surface to manufacture a building panel in which sand adheres to the surface, so that the building panel is simple and
It can be manufactured continuously.

In addition, since the sand-filled surface is pressed by the elastic surface that moves at the same speed as the building panel's operating speed, the sand sprinkled on the building panel can be pressed without moving on the building panel surface, creating a beautiful sand. Can be attached.

Also, since the sanding surface is pressed by the elastic surface, even if the diameter of the sand is large or the building panel is bent, this elastic surface absorbs the difference in the size of the sand and the bending of the building panel,
Can hold almost all sand.

In addition, the rod is installed in the direction perpendicular to the moving direction of the building panel,
A plurality of roll pieces having a central hole larger than that of the rod are passed through the rod body so that each roll piece can freely move in the vertical direction. By pressing the sand spraying surface through the, even if the sand is large or small or the building panel is bent, it can be pressed almost uniformly.

In addition, if you use a belt or roll that is a soft foam with an elastic surface, the sand sprinkling surface will be pressed softly, so the sand sprinkled on the building panel will not move, and it will be affected by the size of the sand. It is possible to hold the entire sand almost uniformly.

(Example) Next, the Example of this invention is described, referring drawings.

1 to 4 show one embodiment of the present invention, FIG. 1 is an explanatory view showing the order of steps, FIG. 2 is an explanatory view showing a construction panel, and FIG. 3 is a sectional view showing a holding device, FIG. 4 is a sectional view taken along line XX of FIG.

In FIG. 1, (a) shows a coating process, (b) shows a sand spraying process, (c) shows a pressing process, and (d) shows a drying process.

In FIGS. 1 to 4, reference numeral 1 denotes a building panel. As shown in FIG. 2, the building panel 1 is constructed by integrally fixing a wood chip cement plate 11 having a thickness of 12 mm to a frame 12 made of steel prisms with screws. It is the one.

2 is a moving roll, which is rotated by a drive device (not shown), on which the building panel 1 is
When placed, the building panel 1 moves from left to right in the figure.

Reference numeral 3 denotes an air spray type paint coating device, in which paint is vigorously ejected together with air from a nozzle 31.
This nozzle 31 reciprocates in the width direction of the building panel 1,
It is adapted to be applied uniformly in the width direction of the building panel 1.

Reference numeral 4 denotes a sand spraying device. In this sand spraying device 4, a slit 43 is opened in the bottom wall in the width direction of the building panel by a length equal to the width of the building panel, and a brush 44 is provided in the slit 43. Are provided so as to close the slit 43. Then, when the sand 42 is contained in the sand container 41 and the rotary brush 44 is stopped, the sand 42 does not drop, but when the rotary brush 44 rotates at a constant speed, the sand 42 drops by a fixed amount and becomes constant. It is spread evenly on the surface of the building panel 1 moving at a speed.

A pressing device 5 has a belt 54 wound between two pulleys 51, 51 as shown in FIG. The belt 54 has a flexible and elastic rubber surface,
The back side is reinforced with cloth.

Reference numeral 53 denotes a rod, which is provided in a direction perpendicular to the traveling direction of the building panel 1.

52 is a roll piece, and the roll piece 52 is provided with a central hole 55 larger than the outer diameter of the rod body 53, and the rod body 53 penetrates substantially the center of the central hole 55. In addition, stoppers 58 are provided at both ends so that the roll piece 52 does not shift from both sides. Therefore, the roll piece 52 can move freely in the vertical direction, but in the horizontal direction, the adjacent roll piece 52 and the stopper 52 can move freely.
58 is getting in the way and is not able to move freely.

Since the roll piece 52 is attached in this way, the sand 42 sprinkled on the building panel 1 is pressed by the weight of the roll piece 52 via the belt 54.

The building panel 1 is not necessarily a horizontal surface, and may have an uneven surface as shown in FIG. 4, for example.
A large number of roll pieces 52 lined up in the width direction move up and down according to the unevenness of the building panel 1, and the sand 42 side is rolled into pieces.
It is designed to be held down by its own weight of 52.

6 is a drying device, and this drying device 6 is a device for drying the paint applied on the continuous panel 1 by infrared rays emitted from a large number of infrared heaters.

Next, a method for manufacturing a building panel having a sand-filled decorative surface using this apparatus will be described.

The wood chip cement board 11 was placed on the frame 12, and screws were screwed into the wood chip cement board 11 to attach the wood chip cement board 11 to the frame 12 to manufacture the building panel 1.

The building panel 1 manufactured in this way is moved to the moving roll 2
And move from left to right as shown in FIG.

During this movement, paint is applied from the paint application device 3 to the construction panel 1
A coating layer 13 is provided by being applied on the above. Next, sand is sprinkled on the paint layer 13 by the sand sprinkling device 4, and the sand sprinkling surface 14 is provided.

Next, the sanding surface is pressed by the pressing device 5, the paint is dried and hardened by the drying device 6, and the sand is firmly adhered to the paint layer 13, whereby a building panel having a sand decorative surface can be manufactured. .

Next, the embodiment shown in FIG. 5 will be described.

In the embodiment shown in FIG. 5, the holding device 5 in FIGS. 1 to 4 is merely replaced with the holding device 5a, and other devices and manufacturing methods are the same as those shown in the first to fourth embodiments. Is the same.

The pressing device 5a is a roll provided with an elastic surface 57 made of a soft polyurethane foam around a rotating shaft 56,
The pressing device 5a is brought closer to the sand spraying surface 14 and the elastic surface 57 is pressed to press the sand spraying surface.

The rotation speed of the roll at this time is such that the surface speed of the roll is the same as the moving speed of the sand spray surface.

(Effect of the invention) In the present invention, the surface of the building panel moving with the surface upward, the paint is applied to provide a paint layer, then,
Sand is spread evenly on this paint layer to provide a sanding surface,
Since it is possible to manufacture a building panel having a sand-filled decorative surface by simply pressing the sanding surface with an elastic surface, the building panel can be manufactured very easily and continuously, which is convenient.

Moreover, since the sand sprinkling surface is pressed by the elastic surface that moves at the same speed as the moving speed of the building panel, the sand sprinkled on the building panel can be pressed without moving on the building panel surface, creating a beautiful sand. A construction panel having a decorative face can be manufactured, which is useful.

Also, since the sanding surface is pressed by the elastic surface, even if the sand is large or small or the building panel is bent, this elastic surface absorbs the difference in the size of the sand and the bending of the building panel, and almost all sand It is useful because it is possible to produce a construction panel having a beautiful decorative surface containing sand.

In addition, a rod is provided in a direction substantially perpendicular to the moving direction of the building panel, and a plurality of roll pieces having a central hole larger than the rod outer diameter are passed through this rod at a speed almost equal to the moving speed of the building panel. It is convenient to press the sand sprinkling surface from the back surface of the moving elastic belt through the elastic belt by the weight of the plurality of roll pieces, because the sand sprinkling surface can be pressed almost uniformly.

Also, if the elastic surface is a belt or roll of soft foam, it gently presses the sanding surface, so there is no movement of the sand sprinkled on the building panel, and it is affected by the size of the sand. It is convenient because the whole sand can be pressed evenly.

The construction panel having a sand-containing makeup manufactured by the method of the present invention can be widely used for inner walls, outer walls, roofing materials, ceiling materials, etc., and is extremely useful.

[Brief description of drawings]

1 to 4 show one embodiment of the present invention, FIG. 1 is an explanatory view showing the order of steps, FIG. 2 is an explanatory view showing a construction panel, and FIG. 3 is a sectional view showing a holding device, FIG. 4 is a sectional view taken along line XX of FIG. FIG. 5 shows another embodiment of the present invention and is a cross-sectional view showing a holding device. 1 …… Building panel 2 …… Movement roll 3 …… Paint coating device 4 …… Sand spraying device 5,5a …… Pressing device 51 …… Pulley 52 …… Roll piece 53 …… Rod 54 …… Belt 55 …… Center hole 56 …… Rotary axis 57 …… Elastic surface

Claims (3)

[Claims] 1. A coating layer is formed by applying a paint to the surface of a building panel while moving the building panel with the surface facing up.
Manufacture of a building panel characterized by spreading sand evenly on this paint layer to provide a sanding surface, and then pressing this sanding surface with an elastic surface that moves at about the same speed as the moving speed of the building panel. Method. 2. A rod body is provided in a direction substantially perpendicular to the moving direction of the building panel, and a plurality of roll pieces having a central hole larger than the rod outer diameter are passed through the rod body, and the moving speed of the building panel is almost the same. 2. The method for manufacturing a building panel according to claim 1, wherein the sand sprinkling surface is pressed from the back surface of the elastic belt that moves at the same speed by the weight of the plurality of roll pieces through the elastic belt. 3. The method for manufacturing a building panel according to claim 1, wherein the elastic surface is a belt or a roll made of soft foam.