JPH08266974A - Primer coating apparatus - Google Patents

Abstract

PURPOSE: To provide a primer coating apparatus capable of uniformly and quantitatively applying a primer to the surface to which a surface material is bonded of a panel core material and certainly drying the coated primer to prevent the adhesion of the primer in the subsequent process. CONSTITUTION: Primer coating rollers 30A, 30B applying a primer to the surfaces (both side surfaces in a feed direction) to which a surface material is bonded to a panel core material 1 are provided and an air spray means 41 spraying air on the surfaces coated with the primer of the panel core material 1 is provided in front of the coating rollers. Air is sprayed to fly the excessively coated primer not only to eliminate coating irregularily but also to make a coating amt. constant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a frame body by framing a panel core material, and attaching a face material to at least one surface of the frame body to manufacture a panel material. The present invention relates to a primer applying device that applies a primer to a surface to which a material is attached.

[0002]

BACKGROUND ART A panel construction method is known in which a panel material is manufactured in advance in a factory or the like and then combined at a construction site to build a building or the like. As shown in FIG. 1, the panel material used in the panel construction method is a frame body 3 in which a panel core material 1 (long core material 1A, short core material 1B, etc.) made of wooden square wood is framed into a rectangular frame shape. Is formed, and the heat insulating material 5 is filled into the frame body 3 as needed, and face materials 4, 4 such as plywood are attached to the surface (at least one surface).

Conventionally, the manufacturing of the panel material 6 shown in FIG. 1 has been performed in the process shown in FIG. Planar processing step: The surface (3 to 4 surfaces) of the core material 1 is hooked with a board 11. Primer application process: core material 1 is applied to primer application roller 12
While passing the gap, a primer is applied to the surface of the core material 1 to which the face materials 4, 4 are attached. Primer drying step: The primer is dried while passing the core material 1 between the heating plates 13. Core material vertical raising process: The core material 1 flowing horizontally is raised vertically for the next groove processing. Grooving process: Groove 2 in core 1 by rotary saw 15
Process a. Frame process: A plurality of core materials 1 are framed into a rectangular frame shape, and then nailed to manufacture a frame body 3. At this time,
The short core material 1B is centered by the groove processing machine 16,
The grooves 2b, 2c, 2d are formed on both end sides and then framed. Face material pasting step: After applying an adhesive to the surface of the framework 3 (the surface where the primer is applied), the face materials 4 and 4 such as plywood are pasted to manufacture the panel material 6. At this time, the frame 3 is filled with the heat insulating material 5. Sizer processing step: The size of the panel material 6 is cut by the sizer processing machine 18 for dimensioning. Unloading step: The panel material 6 is unloaded to the next step (for example, a step of combining a plurality of panel materials) while changing the direction of the panel material 6 by the panel material transporting device 19.

[0004]

By the way, conventionally, in the above-mentioned primer coating step, while passing the core material 1 between the primer coating rollers 12, the surface material of the core material 1 on which the face materials 4, 4 are adhered is adhered. Although the primer is applied, the primer applying roller 12 cannot apply a constant amount of primer each time to the surface of the core material 1 to which the face materials 4 and 4 are adhered, and the primer applying roller 12 There is a problem that unevenness of the coating film occurs depending on the position in contact with. If the amount of primer applied is increased in order to avoid such uneven coating, the primer flows to the subsequent steps without being completely dried in the next primer drying step. The problem of adhesion occurs.

An object of the present invention is to solve such a conventional problem and to apply a primer uniformly and quantitatively and stably to the surface of the panel core material to which the face material is attached. Another object of the present invention is to provide a primer coating device capable of efficiently drying the primer and preventing the adhesion of the primer in the subsequent steps.

[0006]

SUMMARY OF THE INVENTION A primer coating apparatus of the present invention comprises a panel core material as a frame to form a framework, and a panel material is attached to at least one surface of the framework to manufacture a panel material. A primer applying device for applying a primer to the panel core material, wherein a primer applying means for applying a primer to a surface of the panel core material to which the face material is attached,
Air spraying means for spraying air onto the surface of the panel core material to which the primer is applied by the primer applying means is provided.

Here, the air blowing means has a flexible air conduit having a tip facing the surface of the panel core material, and an air source for supplying air to the air conduit. Is preferred. Further, it is preferable that the primer applying means includes a pair of primer applying rollers which are rotatably provided on both side surfaces of the panel core member and whose rotation axes are vertical.

[0008]

According to the primer application device of the present invention, the primer is applied to the surface of the panel core material to which the face material is attached by the primer applying means, and then the surface to which the primer is applied is blown by the air blowing means. Is sprayed. Then, the blown air blows off excess primer and corrects uneven coating. Therefore, the primer can be uniformly and stably applied in a fixed amount to the surface of the panel core material to which the face material is attached.

Here, if the air spraying means is composed of a flexible air conduit with its tip facing the surface of the panel core material and an air source for supplying air to this air conduit, the air conduit By utilizing the flexibility of, the tip of the air conduit can be easily made to face the desired position on the surface of the panel core material. Further, if the primer applying means is configured to include a pair of primer applying rollers which are rotatably provided on both side surfaces of the panel core material and have a rotation axis vertical, the primer is applied to the vertical surface of the panel core material. As a result, the excess applied primer flows down due to gravity along with the air blowing effect, and even if there are recesses on the vertical surface of the panel core material, it does not accumulate, so the primer is stabilized uniformly and quantitatively. Can be applied.

[0010]

EXAMPLE An example in which the present invention is applied to the primer coating step in FIG. 2 will be described in detail below with reference to the drawings. FIG. 3 is a plan view showing the primer applying apparatus of this embodiment, and FIG. 4 is a perspective view showing the main part thereof. The primer applying device includes a primer applying means 21 for applying a primer to the surface of the panel core material 1 to which the face material 4 is attached, and an air applied to the surface of the panel core material 1 to which the primer is applied by the primer applying means 21. Air spraying means 41 for spraying
With.

The primer coating means 21 comprises a carry-in roller conveyor 22, a carry-out roller conveyor 23, and a box-shaped frame 24 arranged between them. In the frame 24, guide pieces 25A and 25B for guiding the widthwise position of the panel core material 1 carried in by the carry-in roller conveyor 22 are provided in a “C” shape, and a fixed arm is provided in front of the guide pieces 25A and 25B. 26A and a swing arm 26B are provided respectively. Swing arm 26B
Is supported swingably in a direction in which it approaches and separates from the fixed arm 26A with the base end as a fulcrum.

Each of the arms 26A, 26B is provided with a motor 28A, 28B having a pulley 27A, 27B at the base end thereof, and a rotary shaft 29 at the tip thereof.
A and 29B are vertically and rotatably supported. A primer coating roller 30 is attached to each of the rotating shafts 29A and 29B.
A, 30B and pulleys 31A, 31B are provided, respectively. Each pulley 31A, 31B and the pulley 27
Belts 32A and 32B are wound around A and 27B. Therefore, when the motors 28A, 28B rotate, the pulleys 27A, 27B, 31A, 31B, the belt 3
The primer coating rollers 30A and 30B are adapted to rotate via 2A and 32B and the rotary shafts 29A and 29B. Further, a spring 33 is stretched between the arms 26A and 26B, whereby the primer applying roller 3
0B is constantly urged in the direction of approaching the primer applying roller 30A.

The air spraying means 41 has an air distributor 42 fixed on the frame 24. The air distributor 42 has one air inlet 43 and two air distributors 44A and 44B. Air inlet 43
A compressor 46, which serves as an air source, is connected to the via a air supply pipe 45. Each air distribution port 44
Air conduits 47A and 47B made of a flexible copper tube or the like are connected to A and 44B, respectively. The tips of the air conduits 47A and 47B are respectively connected to the nozzle 48.
A and 48B having primer coating rollers 30A and 30B
The core material 1 on which the primer has been applied is exposed to both side surfaces with a gap. Incidentally, 49A and 49B are cocks for adjusting the supply amount of air to the air conduits 47A and 47B.

In the structure described above, the core material 1 carried in from the carry-in roller conveyor 22 is the primer coating roller 30.
When reaching A and 30B, the primer applying roller 30
By the rotation of A and 30B, the core material 1 is moved to the carry-out roller conveyor 23 through between the primer application rollers 30A and 30B. These primer application rollers 30A, 30B
A primer is applied to both side surfaces of the core material 1 when the core material 1 is moved between them. Subsequently, air from the tip nozzles 48A, 48B of the air conduits 47A, 47B is blown onto the surface coated with the primer. Then, the primer applied to both side surfaces of the core material 1 is made uniform by scattering the excess primer by the air jetted from the tip nozzles 48A and 48B of the air conduits 47A and 47B. Then, the primer is dried while passing between the heating plates 13.

According to this embodiment, the primer application roller 3
Since the air spraying means 41 for spraying air is provided on the surface of the core material 1 to which the primer is applied by 0A and 30B, the excess primer is scattered and made uniform by the spraying of air. It is possible to apply the primer uniformly and stably in a fixed amount on the surface to which is adhered. Therefore, the applied primer can be efficiently dried in the next primer drying step, so that the adhesion of the primer in the subsequent steps can be prevented.

Further, the air blowing means 41 has a flexible air conduit 47 with its tip facing the surface of the core material 1.
Since it is composed of A, 47B and the compressor 46 for supplying air to the air conduits 47A, 47B, the tip nozzles 48A, 48B of the air conduits 47A, 47B are utilized by utilizing the flexibility of the air conduits 47A, 47B. The desired position on the surface of the core material 1 can be easily encountered.

Further, the primer applying means 21 includes roller conveyors 22 and 23 for conveying the core material 1, and a pair of primer coating rollers 30A rotatably provided on both sides of the core material 1 conveyed by the roller conveyor 22. Since it is configured to include 30B, since the primer can be applied to both vertical surfaces of the core material 1, the excessively applied primer can be dropped by gravity together with the effect of blowing the air, and Even if there are recesses or the like on both vertical surfaces, they do not collect, so that the primer can be uniformly and quantitatively applied to the surface of the core material 1 to which the face material 4 is attached.

Although the present invention has been described above with reference to the preferred embodiments, the present invention is not limited to these embodiments, and modifications can be made without departing from the gist of the present invention. For example, in the above embodiment, the primer is applied to both side surfaces of the core material 1 only by the pair of primer applying rollers 30A and 30B.
0A, 30B, an impregnating roller is provided, and the impregnating roller is first impregnated with a primer, and then the primer of the impregnating roller is transferred to the primer applying rollers 30A, 30B. A structure in which a primer is applied to both sides may be used.

In the above embodiment, the pair of primer applying rollers 30A and 30B are fixed and the core 1 is moved between them. However, the core 1 is fixed and the primer is applied along both side surfaces thereof. It can also be applied to a type in which the coating rollers 30A and 30B move while rotating.

[0020]

According to the primer coating apparatus of the present invention, since the air spraying means for blowing air to the surface of the panel core material coated with the primer by the primer coating means is provided, the face material of the panel core material is attached. The primer can be uniformly and stably applied to the surface to be adhered in a fixed amount. Therefore, since the applied primer can be surely dried, the adhesion of the primer in the subsequent steps can be prevented.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a panel material.

FIG. 2 is a diagram showing a manufacturing process of a panel material.

FIG. 3 is a plan view showing an embodiment of the primer coating device of the present invention.

FIG. 4 is a perspective view showing a main part of the embodiment.

[Explanation of symbols]

 1 Panel Core Material 21 Primer Applying Means 29A, 29B Rotating Shafts 30A, 30B Primer Applying Roller 41 Air Spraying Means 46 Compressor (Air Source) 47A, 47B Air Conduit

Claims (3)

[Claims] 1. A primer applicator for applying a primer to a panel core material when a panel core is framed to form a framework and a face material is attached to at least one surface of the framework to manufacture a panel material. A primer applying means for applying a primer to the surface to which the face material of the panel core material is attached, and an air spraying means for applying air to the surface of the panel core material to which the primer has been applied by the primer applying means, A primer coating device comprising: 2. The primer applying apparatus according to claim 1, wherein the air spraying means has a flexible air conduit having a tip facing the surface of the panel core material, and air to the air conduit. A primer coating device having an air source to be supplied. 3. The primer coating device according to claim 1 or 2, wherein the primer coating means is rotatably provided on both side surfaces of the panel core member and has a rotation axis vertical to the pair of primer coating means. A primer application device comprising a roller.