JPH10235762A - Honeycomb panel and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To join a honeycomb core and acrylic resin face plates without spoiling color and transparency by pressing and fixing upper and lower edges of an aluminum honeycomb core against acrylic resin face plates. SOLUTION: A honeycomb core 2 of a honeycomb panel 1 is formed of aluminum foil or aluminum sheet. Face plates 3 provided on both sides of the honeycomb core 2 are composed of acrylic resin plates. The honeycomb core 2 and the face plates 3 are fixed by pressing and fixing the upper and lower edges of the aluminum honeycomb core against the acrylic resin face plates. Since the honeycomb core is composed of multiple cells 4, the acrylic resin face plates can be joined strongly against the honeycomb core without using an adhesive by the pressing and fixing structure. Since the honeycomb core reinforces the acrylic resin face plates, the honeycomb panel of excellent stiffness can be obtained for enabling use of a big honeycomb panel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a honeycomb panel,
In particular, the present invention relates to a honeycomb panel in which acrylic resin face plates are provided on both surfaces of a honeycomb core made of aluminum (including an aluminum alloy; the same applies hereinafter) and a method for manufacturing the same.

[0002]

2. Description of the Related Art As shown in FIG.
For example, a honeycomb core 2 made of an aluminum foil having a thickness of 50 to 100 μm is formed by bonding face plates 3 to both sides, and has excellent performance such as light weight, high rigidity, and sound absorbing properties. , Partitions, doors, and other construction applications.

[0003] In general, a honeycomb panel is formed by applying an adhesive to a strip-shaped aluminum foil at predetermined intervals,
The honeycomb core is formed by laminating the parts with the adhesive applied in a staggered pattern and partially expanding them in a hexagonal shape, or by bonding parallel parts of aluminum foil that has been corrugated in advance to form a honeycomb core. Is applied and the core is adhered.

As the face plate 3, a metal plate such as an aluminum alloy plate is often used, but when a synthetic resin plate, particularly an acrylic resin plate, is used, the interior material is made using color and transparency. A design effect can be expected in applications such as ceiling materials, wall materials, and partitions.

Conventionally, when an acrylic resin face plate is integrated with an aluminum honeycomb core, a composite is formed by interposing an adhesive or the like between the honeycomb core and the acrylic resin plate. In the case of using a transparent acrylic resin plate, the transparency is impaired when using the transparency of the acrylic resin face plate to achieve a design effect, and in the case of a colored acrylic resin plate, the color tone changes. There is.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems in a honeycomb panel having an acrylic resin plate as a face plate. An object of the present invention is to provide a honeycomb panel in which a honeycomb core and an acrylic resin face plate are joined without impairing the properties of the acrylic resin face plate, and a method for manufacturing the honeycomb panel.

[0007]

Means for Solving the Problems A honeycomb panel according to the present invention for achieving the above object is formed of an aluminum honeycomb core and acrylic resin face plates provided on both sides of the honeycomb core. On the other hand, the configuration is characterized in that the upper and lower ends of the honeycomb core are press-fitted and fixed.

In a method for manufacturing a honeycomb panel according to the present invention, an acrylic resin face plate is disposed on both sides of an aluminum honeycomb core, and the acrylic resin face plate is heated and pressed against the aluminum honeycomb core in a molten state. The first feature is that the upper and lower ends of the honeycomb core are press-fitted into an acrylic resin face plate, cooled in a pressurized state, and the acrylic resin face plates are bonded to both surfaces of the honeycomb core.

Further, the second and third features of the method for manufacturing a honeycomb panel according to the present invention are that an aluminum honeycomb core and an acrylic resin face plate are provided between upper and lower pressure plates provided with heating means. The acrylic resin face plate is placed on the honeycomb core, and the face plate is pressed and pressed into the honeycomb core while heating the acrylic resin face plate with the upper and lower pressing plates. A spacer for restricting the approach of the object.

In the present invention, in the honeycomb panel 1 shown in FIG. 1, the honeycomb core 2 is formed of an aluminum foil or an aluminum thin plate, and the face plates 3 provided on both sides of the honeycomb core 2 are formed of an acrylic resin plate. 2 and the face plate 3 are fixed by press-fitting the upper and lower ends of an aluminum honeycomb core to an acrylic resin face plate, as shown in FIG.

Since the honeycomb core is composed of a large number of cells 4, the press-fitting and fixing structure of the present invention allows the acrylic resin face plate to be firmly joined to the honeycomb core, and the honeycomb core has the strength of the acrylic resin face plate. Therefore, a honeycomb panel having excellent rigidity can be obtained, and a large-sized honeycomb panel can be used. Since no adhesive is used, it is possible to obtain a honeycomb panel excellent in design without impairing the transparency and color tone of the acrylic resin plate.

When the honeycomb core made of aluminum is press-fitted into the face plate of the acrylic resin, the press-fit portion 5 is deformed as shown in FIG. In the case of a honeycomb panel having a transparent acrylic resin face plate bonded thereto, as shown in FIG. 2, when the cell size c is large and the press-fit depth d is small, the face plate back surface 6 between the press-fit portions 4 is not deformed. When the honeycomb panel is viewed from the front, the entire panel has a glass-like shape, and light transmitted through the honeycomb core is diffused, so that a honeycomb panel having a function of adjusting or producing light is obtained. Can be

On the other hand, when the cell size c is small and the press-fit depth d is large, as shown in FIG.
Since the rear face 6 between the face plates has a lens shape, when the honeycomb panel is viewed from the front, a unique design property is given to the panel.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS To manufacture a honeycomb panel of the present invention, an acrylic resin face plate is disposed on both sides of an aluminum honeycomb core, and the acrylic resin face plate is heated.
In the molten state, pressure is applied to the aluminum honeycomb core, the upper and lower ends of the honeycomb core are pressed into a face plate of an acrylic resin, and the honeycomb core is cooled while being pressed.

The acrylic resin plate preferably has a thickness of 3 to 5 mm and is transparent or colored in various colors. The aluminum honeycomb core has a cell size of 3/8 to 1 Inch, thickness h is 10
~ 60mm, vertical and horizontal dimensions are 1500mm ~ 6000m
m, the thickness of the aluminum material constituting the honeycomb core is 50 to 100 μm, preferably 50 to 76 mm. If the thickness is less than 50 mm, it tends to buckle when pressed.

As a specific example of the pressing means, as shown in FIG. 4, between the upper pressing plate 7 having the heater 10 embedded therein and the lower pressing plate 8 having the heater 11 embedded therein, the aluminum honeycomb core 2 and the acrylic The resin face plates 3 and 3 are disposed in a state where the acrylic resin face plates 3 and 3 are located on the upper and lower surfaces of the aluminum honeycomb core 2, and the acrylic resin face plates 3 and 3 are arranged by the upper pressing plate 7 and the lower pressing plate 8. Is heated and melted. Reference numerals 12 and 13 denote alternating current power supplies for energizing the heaters 10 and 11 embedded in the upper pressure plate 7 and the lower pressure plate 8, respectively.

The melting temperature of the acrylic resin does not exceed 200 ° C., and the heating is performed at a temperature of 80 to 180 ° C. When the temperature is lower than 80 ° C., the acrylic resin is not sufficiently melted, and the press-fitting and fixing of the honeycomb core to the face plate of the acrylic resin is likely to be unstable. Easier to do. By using the pressure plates 7 and 8 in which the heaters 10 and 11 are embedded, the heating and melting of the face plates 3 and 3 are uniformly performed. , 3 in the direction of arrow P in FIG.
As shown in FIGS. 2 and 3, the upper and lower ends of the honeycomb core 2 are press-fitted into face plates 3 of acrylic resin. Pressurization is, for example, 1
The pressing is performed at a pressure in a range from kgf / cm ² to the pressure resistance of the honeycomb panel.

By cooling while maintaining the pressurized state, the honeycomb panel 1 in which the acrylic resin face plates 3 and 3 are joined to both surfaces of the honeycomb core 2 is manufactured. In addition, in order to control the press-fit depth of the honeycomb core to the acrylic resin face plate to a desired depth, and to make the adhesion between the acrylic resin plate and the aluminum honeycomb core uniform, the thickness is the same as the thickness of the honeycomb panel to be obtained. The spacer 9 of the dimensions is
8 can be inserted. Further, a release sheet (not shown) may be interposed between the pressing plate and the face plate to prevent welding of the pressing plate and the honeycomb panel.

In the present invention, since the heat molding temperature of the acrylic resin does not exceed 200 ° C., the softening of the aluminum honeycomb core can be avoided. Therefore, the face plate of the acrylic resin is heated to be in a molten state. Even if the core is pressed in, the honeycomb core can be pressed into the acrylic resin face plate without buckling deformation, and by cooling under pressure, the acrylic resin face plate can be firmly joined to both sides of the honeycomb core It becomes possible.

[0020]

【Example】

Example 1 Honeycomb core (cell size c: 1/2 inch, thickness h: 21 mm, dimension: 1500 mm in height × 20 in width) made of aluminum alloy (A3003) foil (76 μm in thickness)
(00 mm), a transparent acrylic resin plate (thickness: 3 mm) was provided as a face plate, and this was set in a pressing device shown in FIG. The thickness between the upper and lower pressure plates is 25.0 mm.
Spacer was inserted.

The face plate is brought to a temperature of 120.degree.
After heating for minutes, the face plate was pressed into the honeycomb core with a pressure plate, and then cooled over 20 minutes while maintaining the pressurized state. The upper and lower ends of the honeycomb core were pressed into the acrylic resin face plate and fixed. The obtained honeycomb panel having a thickness of 25 mm was obtained. This honeycomb panel had the same transparency as the acrylic resin plate before joining, and had sufficient strength and rigidity.

[0022]

According to the present invention, in a honeycomb panel in which an acrylic resin face plate is joined to a honeycomb core made of an aluminum foil or a plate material, the characteristics of the acrylic resin plate are not impaired, and the same as the acrylic resin plate before joining. Thus, a honeycomb panel having excellent transparency and coloring properties and excellent strength and rigidity can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view in which a part of a honeycomb panel is cut away.

FIG. 2 is a partially enlarged cross-sectional view showing one embodiment of a bonded state of a face plate of a honeycomb panel and an end of a honeycomb core of the present invention.

FIG. 3 is a partially enlarged cross-sectional view showing another embodiment of the joined state of the face plate of the honeycomb panel and the end of the honeycomb core according to the present invention.

FIG. 4 is a partially sectional side view showing an embodiment of an apparatus for producing a honeycomb panel of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Honeycomb panel 2 Honeycomb core 3 Faceplate 4 Cell 5 Press-fitting part 6 Faceplate backside 7 Pressure plate 8 Pressure plate 9 Spacer 10 Heater 11 Heater 12 AC power 13 AC power c Cell size of honeycomb core h Honeycomb core thickness

Claims (4)

[Claims] 1. An aluminum honeycomb core and an acrylic resin face plate provided on both sides of the honeycomb core, and upper and lower ends of the honeycomb core are press-fitted and fixed to the acrylic resin face plate. Honeycomb panel. 2. An acrylic resin face plate is disposed on both sides of an aluminum honeycomb core, and the acrylic resin face plate is heated and pressed against the aluminum honeycomb core in a molten state, so that the upper and lower ends of the honeycomb core are acrylic. A method for manufacturing a honeycomb panel, comprising press-fitting a resin face plate, cooling under pressure, and bonding an acrylic resin face plate to both surfaces of a honeycomb core. 3. A method according to claim 1, wherein the upper and lower pressure plates having heating means are provided between the upper and lower pressure plates.
Aluminum honeycomb core and acrylic resin face plate,
3. The honeycomb core according to claim 2, wherein the face plates are disposed on both sides of the honeycomb core, and the face plate is pressed and pressed into the honeycomb core while heating the acrylic resin face plate with the upper and lower pressing plates. A method for manufacturing a honeycomb panel. 4. The method for manufacturing a honeycomb panel according to claim 3, wherein a spacer is provided between the upper and lower pressing plates to restrict the approach between the pressing plates.