JP2001315113A - Apparatus and method for manufacturing patterned panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a crack from being generated in a panel when the patterned panel formed inside a form body is taken out. SOLUTION: An apparatus for manufacturing a patterned panel 1 is provided wherein a plurality of irregular engaging parts 31 provided around a shuttering 12 comprising the form body and a plurality of irregular engaging parts 32 provided around fitting frame 21 allowed to fit to the shuttering 12 of a mold- releasing apparatus 20 can be engaged with or released from each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for producing a patterned panel suitable for use as a building material such as a wall panel.

[0002]

2. Description of the Related Art Conventionally, as an apparatus for manufacturing a patterned panel,
As shown in Japanese Patent Application No. 10-220628, in order to take out the patterned panel formed inside the cavity of the mold, a pull-out member detachably provided on the lower surface of the lid plate of the demolding device that covers the cavity of the mold is used. Some are embedded inside the panel.

[0003]

However, in the prior art, when the cover plate is raised to remove the patterned panel by the removal device, the four corners of the cover plate can be raised evenly with respect to the mold. In addition, not only tensile stress but also shear stress is generated between the decorative portion of the mold body that can be elastically deformed and the patterned panel, and the patterned panel is cracked.

[0004] It is an object of the present invention to prevent a crack from being formed in a patterned panel formed in a mold body when the panel is taken out.

[0005]

According to a first aspect of the present invention, there is provided an electronic apparatus comprising a substrate, a mold disposed on the substrate, and a decorative portion surrounded by the mold and placed on the substrate. In the apparatus for manufacturing a patterned panel, comprising: a molded body formed from the above, and a demolding device for taking out the patterned panel formed in the mold of the molded body, a plurality of irregularities provided around the mold constituting the molded body. The engaging portion and a plurality of concave and convex engaging portions provided around a fitting frame fitted to the mold of the demolding device can be engaged and disengaged from each other.

According to a second aspect of the present invention, in the first aspect of the present invention, a reinforcing bar is bridged inside a fitting frame of the demolding device.

[0007] The invention according to claim 3 is the invention according to claim 1 or 2.
Further, in the invention described in the above, the mold body, while fixing the substrate made of a metal plate on the back surface of the decorative portion, a push-up device for promoting the release of the patterned panel around the decorative portion It is arranged on the substrate.

According to a fourth aspect of the present invention, there is provided a method for producing a patterned panel using the apparatus for producing a patterned panel according to the third aspect, wherein the curable substrate is poured into a mold and filled. When the substrate is cured and the patterned panel is taken out using the demolding device, the peripheral portion of the cured substrate is pushed up using a pushing device, and the substrate is peeled from the decorative portion. It was done.

[0009]

According to the first aspect of the present invention, the following operations are provided. When removing the patterned panel by the removal device, slide the plurality of uneven engagement portions provided around the fitting frame of the removal device against the plurality of uneven engagement portions provided around the mold frame of the mold. By doing so, the four corners of the demolding device can be raised evenly with respect to the die, and the patterned panel is not cracked.

According to the second aspect of the present invention, the following effects are obtained. By providing a reinforcing bar in the fitting frame of the demolding device, the patterned panel at the time of demolding is prevented from warping in the removal direction, and thus the bending stress of the patterned panel due to this warpage is prevented, and The occurrence of cracks in the panel can be more reliably prevented.

According to the third aspect of the invention, the following operations are provided. By fixing the substrate made of a metal plate to the back surface of the decorative portion, when the patterned panel is separated, the decorative portion can be reinforced to prevent its damage and to improve its durability.

By arranging the lifting device around the decorating section, the patterned panel can be easily released from the decorating section.

According to the fourth aspect of the invention, the following effects are obtained. At the time of manufacturing a patterned panel,
, And a patterned panel without cracks can be stably produced for a long period of time.

[0014]

FIG. 1 is a sectional view showing a manufacturing apparatus according to an embodiment of the present invention, FIG. 2 is a sectional view showing a main part of a mold,
FIG. 3 is a perspective view showing a mold frame of a mold and a fitting frame of the removal device, and FIG. 4 is a perspective view showing a removal device of a comparative example.

(I) Mold 10 (FIGS. 1 and 2) As shown in FIGS. 1 and 2, the mold 10 includes (1) a substrate 11 and (2)
Formwork 12 placed on substrate 11, (3) Decorating part 13 surrounded by formwork 12 and placed on each substrate 11, (4) Inorganic foam around decorating part 13 Patterned panel 1
And a plurality of push-up devices 14 placed on the substrate 11 in order to promote the mold release.

(Substrate 11 and Formwork 12) The substrate 11 and the formwork 12 are arranged on a work table 15 made of wood or metal (FIG. 2). The board | substrate 11 adds the rigidity to the elastic material which comprises the decoration part 13, and keeps the shape of the decoration part 13, and is metal, such as iron, iron and steel, stainless steel, copper, aluminum, and brass. It is composed of a metal plate made of an alloy or the like. The formwork 12 is made of wooden or metal or the like,
A cavity for forming the patterned panel 1 is formed.

(Decoration part 13) The decoration part 13 is arranged on the substrate 11 inside the formwork 12, and has a concavo-convex pattern on the front side.
The pattern is transferred to the surface of the base material filled in the cavity of the mold frame 12 to form the patterned panel 1. The decorating part 13 is made of an elastic material that is easy to peel off the patterned panel 1 and has excellent durability. The decorative portion 13 is, specifically, urethane rubber, silicon rubber, acrylic rubber, butyl rubber, fluoride rubber, polysulfide rubber, graft rubber, butadiene rubber, isoprene rubber, chloroprene rubber, polyisobutylene rubber, polybutene rubber. Synthetic rubber such as rubber, isobutene-isoprene rubber, acrylate-butadiene rubber, styrene-butadiene rubber, styrene-isoprene rubber, acrylonitrile-chloroprene rubber, styrene-chloroprene rubber, or styrene-butadiene-styrene polymer, styrene-hydrogenated poly Examples include elastomers of block copolymers such as styrene-rubber intermediate blocks-styrene copolymers such as olefinene-styrene polymers. The above materials are preferably one kind or a mixture of two or more kinds, and may be an inorganic filler such as calcium carbonate or alumina, or an organic material such as starch added thereto.

(Pushing device 14) Pushing device 14
Is to return the reduced pressure of the gap between the elastically deformable decorating portion 13 and the base material to the atmospheric pressure so as to release the patterned panel from the elastically deformable decorating portion 13. Part 13
Is provided with a cylinder 14A and a push-up pin 14B on the periphery of the cylinder. The cylinder 14A has a pushing force of 2
に す る 10 kg / cm ² , which promotes demolding. Two
If it is less than kg / cm ² , the pushing-up force is insufficient, and the initial purpose cannot be achieved. If it is 10 kg / cm ² or more,
It will damage the cured substrate. The push-up device 14 is not particularly limited, but may be a device that directly blows air, or the like, in addition to a device using a cylinder using hydraulic pressure and air pressure. The number of arrangements of the push-up devices 14 is not particularly limited.

(II) Demolding device 20 (FIGS. 1 and 3) As shown in FIGS. 1 and 3, the demolding device 20 includes a fitting frame 21 fitted to the mold frame 12 of the mold 10; The mold 1 includes a reduced-pressure suction section 22 provided on an upper portion of the fitting frame 21.
The patterned panel 1 formed inside 2 is suctioned under reduced pressure and then lifted from the mold 10 to take out the patterned panel 1.

The suction pressure of the reduced pressure suction unit 22 is 400 to 700 mm
Hg is preferable. When the pressure is 400 mmHg or less, suction cannot be performed. When the pressure is 700 mmHg or more, a large bending stress is generated in the patterned panel 1.

A reinforcing bar 21A is provided inside the fitting frame 21 to prevent generation of bending stress due to warpage of the patterned panel 1 at the time of suction. The planar shape of the patterned panel 1 is 1000 × 3000
mm, pitch of about 500 to 800mm, width of 5 to 20m
m, a prism having a thickness of about 5 to 20 mm can be used as the reinforcing bar 21A. When the pitch of the reinforcing bars 21A is 500 mm or less, the shape of the demolding device 20 becomes complicated, and when it is 800 mm or more, reinforcement against generation of bending stress of the patterned panel 1 is not sufficient.

(III) Concavo-convex engagement structure between the mold body 10 and the mold removing device 20 (FIGS. 1 and 3). The plurality of concave and convex engaging portions 31 provided in
And the plurality of concave / convex engaging portions 32 provided around the fitting frame 21 of the releasing device 20 can be engaged and disengaged from each other.

There is no particular limitation on the size of the uneven shape around the mold frame 12 and the fitting frame 21, and it depends on the shape of the patterned panel 1 to be formed. × 2799 mm, the concave and convex engaging portion 31 of the mold 12 has a pitch of 500 to 800 mm and a width of 10 to
It is preferable to provide a convex shape having a thickness of 80 mm and a thickness of 3 to 20 mm. Also in the concave / convex engaging portion 32 of the demolding device 20, the fitting gap with the concave / convex engaging portion 31 is set to 0.5 to 2 mm, and 500 to 8
It is preferable to provide a concave shape with a width of 10 to 80 mm and a thickness of 3 to 20 mm at a pitch of 00 mm. When the thickness is more than the above range, when the cured patterned panel 1 is demolded by suction, it cannot be raised uniformly and generates bending stress, which causes cracks. In addition, if it is less than the above range, the shape of the mold frame and the shape of the demolding device become complicated in production.

(IV) Curable Substrate The curable substrate for forming the patterned panel 1 is (A)
It contains a reactive inorganic powder, (B) an alkali metal silicate, and (C) water as main components. (A) Reactive inorganic powder As reactive inorganic powder (A), SiO ₂ , 5 to 85% by weight and A
1 ₂ O _3, those 90 to 10 wt% is preferably used. As such a powder, fly ash, metakaolin, kaolin, mullite, corundum, dust for producing an alumina-based abrasive, pulverized and fired bauxite, and the like can be used, but are not limited thereto if the composition and particle size are appropriate. Not something. Further, these powders may be used as they are, but thermal spraying treatment, pulverization classification, and mechanical energy may be applied for activation.

As a method of thermal spraying, a thermal spraying technique applied to ceramic coating is applied. The thermal spraying technique is preferably such that the material powder is melted at a temperature of 2000 to 16000 ° C. and sprayed at a speed of 30 to 800 m / sec, and a plasma spraying method, a high energy gas spraying method, an arc spraying method and the like are used. It is possible. The specific surface area of the obtained powder is 0.
It is preferably from 1 to 100 m ² / g.

As a method of classification and pulverization, any conventionally known method is employed, and examples include classification by a sieve, specific gravity, wind force, wet sedimentation, etc., and pulverization by a jet mill, a roll mill, a ball mill, and the like. These means may be used in combination. As a method of applying mechanical energy, a ball contact mill, a medium stirring type mill, a roller mill, or the like is used. The mechanical energy to be applied is 0.5 kWh /
kg to 30 kwh / kg is preferred. If the mechanical energy is small, it is difficult to activate the powder, and the load on a large device is large.

When fly ash is used as the reactive inorganic powder (A), the fly ash may be fired if necessary. If the calcination temperature is low, the unburned carbon of fly ash remains, which makes coloring difficult. If the calcination temperature is high, the reactivity with the alkali metal silicate (B) becomes low.

(B) Alkali metal silicate The alkali metal silicate (B) is M ₂ O · nSiO ₂ (M = K, N
a, one or more metals selected from Li), and when the value of n is small, a dense foam cannot be obtained, and when the value of n is large, the water-soluble viscosity increases and mixing is difficult. Therefore, it is preferably 0.05 to 8, more preferably 0.5 to 2.
5

The alkali metal silicate (B) is preferably added in the form of an aqueous solution. The concentration of the aqueous solution is not particularly limited, but the reactivity with the fly ash powder decreases as the concentration decreases, and solids easily occur as the concentration increases. Therefore, 10 to 60 parts by weight is preferable.

[0030] The alkali metal silicate solution is an alkali metal silicate (B) as it is pressurized, may be dissolved in water with heating, but silica in alkali metal hydroxide aqueous solution, silica content such as SiO ₂ of The components may be dissolved under pressure and heat so that n becomes a predetermined amount.

On the other hand, if the amount of the alkali metal silicate (B) is too small, the curing is not sufficiently performed, and if the amount is too large, the durability of the obtained foam is reduced.
(A) The amount is limited to 0.2 to 450 parts by weight, preferably 10 to 350 parts by weight, more preferably 20 to 250 parts by weight per 100 parts by weight.

(C) Water The water (C) may be added as the aqueous solution of the alkali metal silicate or may be added independently. If the amount of water (C) is too small, it will not be sufficiently cured, and mixing will be difficult, and if it is too large, the strength of the cured product will be likely to decrease. It is limited to ~ 1500 parts by weight, preferably 45-1000 parts by weight, more preferably 50-500 parts by weight.

(D) Other Components The curable substrate for forming the patterned panel 1 may further include a foaming agent, a foaming aid, an inorganic filler, a reinforcing fiber, and the like, if necessary. .

As the foaming agent, peroxides (hydrogen peroxide,
Sodium peroxide, potassium peroxide, sodium perborate, etc.), metal powder (Mg, Ca, Cr, Mn, Fe, Co, Ni, C
u, Zn, Al, Ga, Sn, ferrosilicon) and the like. If the amount is too large, the foaming gas becomes excessive and the foam breaks. If the amount is too small, the expansion ratio is too small to lose the meaning of the foam. It is preferably in parts by weight. When hydrogen peroxide is used as a foaming agent, the diameter is preferably 200 μm or less in order to obtain safe and stable foaming.

The foaming assistant is not particularly limited as long as it causes foaming uniformly. Examples thereof include fatty acid metal salts such as zinc stearate, calcium stearate, zinc palmitate, silica gel, zeolite, activated carbon, and alumina powder. And porous powder. These may be used alone or in combination of two or more.

When the amount of the foaming aid increases, the viscosity of the composition increases and foam breakage easily occurs. Therefore, the amount is preferably 10 parts by weight or less based on 100 parts by weight of the reactive inorganic powder (A). .

The inorganic filler is not soluble in water and does not inhibit the curing reaction of the foamable inorganic composition. For example, silica sand, river sand, zircon sand, crystalline alumina, rock powder, volcanic ash, silica flower, silica fume, bentonite , Blast-furnace slag, etc., mixed materials for mixed cement, natural favorites such as sepiolite, wollastonite and mica, calcium carbonate, diatomaceous earth and the like. These may be added alone or in combination of two or more.

When the average particle size of the above-mentioned inorganic filler is small, the viscosity of the composition increases, and a high-magnification foam cannot be obtained. When the average particle size is large, foaming becomes unstable.
0.01 to 1000 μm is preferred. When the amount of the inorganic filler increases, the strength of the obtained foam decreases. Therefore, the amount is preferably 70 parts by weight or less based on 100 parts by weight of the reactive inorganic powder (A).

As the reinforcing fiber, any one can be used according to the performance to be imparted to the molded article. For example, vinylon fiber, polyamide fiber, polyester fiber, polypropylene fiber, carbon fiber, aramid fiber, glass fiber, potassium titanate fiber, steel Fibers and the like can be used.

If the fiber diameter of the reinforcing fibers becomes thinner, they reagglomerate during mixing, and entanglement makes it easier to form fiber balls, and the strength of the finally obtained foam is not further improved. In addition, when the reinforcing fiber becomes thicker or shorter, the reinforcing effect such as improvement in tensile strength becomes smaller, and when the reinforcing fiber becomes longer, the dispersibility and orientation of the fiber decrease, so that the fiber diameter is 1 to 500 μm and the fiber length is 1 to 15 mm. preferable.
Since the dispersibility of the fiber decreases as the amount of the reinforcing fiber increases, the amount of the reactive inorganic powder (A) is preferably 100 parts by weight or less.

Further, in order to reduce the weight of the cured product, inorganic foams such as silica balloons, perlite, fly ash balloons, shirasu balloons, glass balloons and foamed clays, and synthetic resins such as phenolic resins, urethane resins, and polyethylene are used. A foam, a vinylidene chloride balloon or the like may be added, or two or more kinds may be used in combination.

If necessary, alumina cement, γ-alumina, sprayed alumina, alkali metal aluminate and aluminum hydroxide may be added.

(V) Method for Manufacturing Patterned Panel 1 The method for manufacturing the patterned panel 1 according to the present invention is as follows.
The above-described curable base material is poured into the mold body 10 and filled using a manufacturing apparatus including the mold release device 20 and then the base material is cured. When the panel 1) is taken out, the peripheral portion of the cured body is pushed up by using the push-up device 14, and the cured body is peeled off from the decorative portion 13.

Hereinafter, examples of the present invention will be described together with comparative examples. In the examples, the effectiveness of the present invention was examined by changing the conditions regarding the decorative part 13 and the thermosetting compound.

(Embodiment) The mold 12 of the mold 10 of the embodiment
Is composed of SS410 of width 1090 × 2999mm, the center (549.5mm) of the form in the short side direction 1099mm and the long side direction 2
50m width at the position (699.75mm) where 999mm is divided into 4
m, a thickness of 50 mm, and a height of 50 mm.
49 mm width and 49 m thickness at the same position on the 0 fitting frame 21
m, a convex / concave engaging portion 32 having a height of 50 mm is provided. The fitting gap of the uneven shape was 1 mm. The mold 10 is a mold 1
2 (width 100 x thickness 100 mm) and substrate 11 (891 x 2799 x 10
mm) and a decorative portion 13 made of silicone rubber (891 × 2799 × 20 mm). 891 × 2799 × 30mm thick to pour the reactive inorganic slurry into the mold 12
There is a cavity. A push-up device 14 consisting of an air cylinder 14A and push-up pins 14B is provided at 15 places with a pitch of 680 mm at the end of the short side of 891 mm and the center at the lower part of the periphery of the silicone rubber constituting the decorative part 13.
Is buried.

With respect to the demolding apparatus 20, 600 blowers were used.
A reduced-pressure suction unit 22 for suctioning under reduced pressure to a pressure of mmHg is provided.
mm at the center and the long side 2999 mm divided into four
A reinforcing bar 21A made of a 0 mm prism is provided.

The base material raw material which was made into a slurry by mixing the reactive inorganic powder into the cavity of the mold frame 12 of the mold 10 was poured and cast. Thereafter, an 80 ° C. heat source was applied to the mold 10 for 8 hours to cure the substrate. Then, the lifting device 1
Air pressure of 5 kg / cm ² is sent to the cylinder 14A of No. 4,
The hardened body was pushed up, and the back surface of the hardened body was sucked by the reduced-pressure suction unit 22 of the demolding device 20 to be demolded. Decorating part 1
3 and the cured product were used 10 times for each of the 16 formulations in Table 1 for a total of 160
The cured product was repeatedly removed from the mold, cracks of the cured product were confirmed, and the removal time (time required to remove one sheet) was measured and averaged, and Table 2 was obtained.

(Comparative Example) The mold of the comparative example has a width of 1099 × 2999.
Formwork (width 60 x thickness 60)
mm) to the substrate (891 x 2799 x 10 mm), silicon rubber (8
(91 x 2799 x 20mm). 891 x 2799 x to pour the reactive inorganic slurry on the top of the mold
There is a cavity with a thickness of 30 mm. Utilizing that a plate 100 × 100 mm × 2 mm thick for mounting a wall is embedded in the back surface of the panel 1, an M10 eye bolt 3 is mounted at four positions on both sides of the plate 2 at a pitch of 2500 mm.

The base material raw material which was made into a slurry by mixing the reactive inorganic powder into the cavity of the mold frame of the mold was poured and cast. Thereafter, an 80 ° C. heat source was added to the mold for 8 hours to cure the substrate. Then use a chain block,
Attach a lifting hook to the eyebolt 3 and remove the cured body from the mold. The cured product was 10
Each time, a total of 160 cured products were repeatedly removed from the mold, cracks in the cured product were confirmed, and the removal time (time required to remove one product) was measured and the average was obtained.

In Examples and Comparative Examples, an inorganic dense body and an inorganic foam were manufactured as a cured body (patterned panel 1). The inorganic dense body refers to a predetermined amount of nSiO ₂ / M ₂ O (n = 1.
5, M = Na, K; molar ratio 1: 1) was dissolved in a predetermined amount of water at 130 ° C. and 0.7 MPa in an autoclave, and wollastonite, vinylon fiber, silica powder, No. 8 silica sand, SiO ₂ -A1 ₂ O ₃
-Based inorganic powder (A) and aluminum hydroxide (particle size 100 μm or less) were mixed with an omni mixer (Chiyoda Giken Kogyo Co., Ltd. 15
(0 liter) to form a uniform paste, which was poured into a mold and cured at 85 ° C. for 6 hours.

On the other hand, the inorganic foam can be obtained by adding aluminum powder in the process of producing the inorganic dense body. That is, the inorganic foam refers to a predetermined amount of nSiO ₂ / M ₂ O
(N = 1.5, M = Na, K; molar ratio 1: 1) was dissolved in a predetermined amount of water at 130 ° C. and 0.7 MPa in an autoclave,
Wollastonite, vinylon fiber, silica powder, No. 8 silica sand, Si
O ₂ -A1 ₂ O ₃ based inorganic powder (A), aluminum hydroxide (particle size
100 μm or less) and zinc stearate mixed with an omni mixer (150 liters manufactured by Chiyoda Giken Kogyo Co., Ltd.) to form a uniform paste, into which a powder having a particle size of 70 μm or less
Aluminum powder containing 100% by weight (Minalco,
350 F) was added, stirred for 40 seconds, poured into a mold, foamed for 3 minutes, and then heated together with the mold in an 85 ° C. oven for 6 hours. The dimensions of the produced inorganic dense body and inorganic foam are 2799 × 891 × 30 (mm) in common.

The above particle diameter was measured by a laser rotary classifier (manufactured by Seishin Co., Ltd., model: PR0700S).
As the reactive inorganic powder (A) for forming the inorganic dense body and the inorganic foam, the following inorganic powders A1, A2,.
It was used.

The inorganic powder A1 was classified by fly ash (manufactured by Kanden Kako Co., Ltd., average particle size: 20 μm; conforming to JIS A 6201) using a classifier (manufactured by Nisshin Engineering Co., Ltd., model: TC-15). It contains 100% by weight of a powder having a size of 10 μm or less.

The inorganic powder A2 is made of kaolin (composition: SiO ₂
Active inorganic powder (composition: 45.7%, A1 ₂ O ₃ 38.3%) obtained by spraying a raw material having an average particle size of 8 μm and a BET specific surface area of 5.8 m ² / g) at a firing temperature of 2500 ° C. and an injection particle speed of 50 m / sec. SiO ₂ 49.7%, A1 ₂ O ₃ 47.0% Average particle size: 49 μm
BET specific surface area is 64.3 m ² / g).

As the inorganic powder A3, fly ash was 3000
It is an inorganic powder that has been melted at a temperature of ° C and sprayed into the atmosphere at a speed of 80 m / s to be recovered. Average particle size of inorganic powder A3 is 5μ
m, specific surface area was 9.5 m ² / g.

The inorganic powder A4 is the same as the inorganic powder A1.
It was obtained by firing at a temperature of 600 ° C. Powder 1 with particle size of 10 μm or less
Fired fly ash containing 00 parts by weight.

The inorganic powder A5 is fly ash (manufactured by Kanden Kako Co., Ltd., average particle size 20 μm, specific surface area 1.8 m ² / g, JIS
A 6201 equivalent) 100 parts by weight and triethanolamine 25
0.5 parts by weight of a mixed solution of 75 parts by weight of ethanol and 75 parts by weight of ethanol is supplied to Ultra Fine Chemical AT-20 (manufactured by Mitsubishi Heavy Industries, zirconia balls 10 mm, ball filling rate 85 vol%), and mechanical energy of 25 kwh / kg is supplied. It was obtained by acting. The applied mechanical energy is represented by the power supplied to the ball mill per unit weight of the treated powder.

The inorganic powder A6 is composed of kaolin (composition: SiO ₂
45.7%, A1 ₂ O ₃ 38.3%, average particle size: 8 μm, BET specific surface area: 5.8 m ² / g) 95 parts by weight, quartz (manufactured by Sumitomo Cement, trade name: soft silica) 5 parts by weight, and triethanolamine 25 0.5 parts by weight of a mixed solution of 75 parts by weight of ethanol and 75 parts by weight of ethanol is supplied to an Ultra Fine Mill AT-20 (manufactured by Mitsubishi Heavy Industries, zirconia balls 10 mm, ball filling rate 85 vol%), and mechanical energy of 25 kwh / kg Are obtained. The applied mechanical energy is represented by the power supplied to the ball mill per unit weight of the treated powder.

The inorganic powder A7 is prepared by mixing the inorganic material 6 with 300
It was obtained by heating at ℃ 3 hours.

The inorganic powder A8 was composed of 100 parts by weight of metakaolin (SATINONE SP33 manufactured by Engelhard Co., average particle size 3.3 μm, specific surface area 13.9 m ² / g), 25 parts by weight of triethanolamine and 75 parts by weight of ethanol. Is supplied to an Ultrafine Mill AT-20 (manufactured by Mitsubishi Heavy Industries, using 10 mm zirconia balls, ball filling rate: 85% by volume), and a mechanical energy of 25 kwh / kg is applied. . The applied mechanical energy is represented by the electric power supplied to the ball mill per processing powder unit.

When the dense inorganic body and the inorganic foam obtained by the above-mentioned inorganic powders A1, A2... A8 are referred to as inorganic confidential bodies 1, 2,. Is as shown in Table 1.

[0062]

[Table 1]

However, according to Table 2, according to the present invention,
It is recognized that the patterned panel 1 can be instantaneously removed from the mold body 10 without damaging the quality.

[0064]

[Table 2]

Therefore, according to the present embodiment, the following operations are provided. When the patterned panel 1 is taken out by the release device 20,
The plurality of concave / convex engaging portions 32 provided around the fitting frame 21 of the demolding device 20 are slid with respect to the plurality of concave / convex engaging portions 31 provided around the mold 12 of the mold 10 to remove the mold. The four corners of the mold device 20 can be raised evenly with respect to the mold body 10, and the patterned panel 1 does not crack.

The reinforcing bar 21 is attached to the fitting frame 21 of the removing device 20.
By providing A, the patterned panel 1 at the time of demolding is prevented from warping in the take-out direction, and thus the bending stress of the patterned panel 1 due to this warpage is prevented.
Cracks can be more reliably prevented.

By fixing the substrate 11 made of a metal plate to the back surface of the decorative portion 13, the decorative portion 13 is reinforced and damaged when the decorative portion 13 is bent to separate the patterned panel 1. Can be prevented and its durability can be improved.

By arranging the lifting device 14 around the decorative part 13, the patterned panel 1 can be easily released from the decorative part 13.

During the production of the patterned panel 1,
Can be obtained, and the patterned panel 1 without cracks can be stably produced for a long period of time.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design may be changed without departing from the scope of the present invention. The present invention is also included in the present invention. For example, in the practice of the present invention, the demolding device is not limited to the one using the reduced pressure suction system.

[0071]

As described above, according to the present invention, when taking out a patterned panel formed inside a mold, it is possible to prevent the panel from cracking.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view showing a main part of a mold.

FIG. 3 is a perspective view showing a mold frame of the mold and a fitting frame of the release device.

FIG. 4 is a perspective view showing a demolding device of a comparative example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Patterned panel 10 type body 11 board | substrate 12 mold | frame 13 Decorating part 14 Push-up apparatus 20 Demolding apparatus 21 Fitting frame 21A Reinforcement bar 22 Decompression suction part 31, 32 Unevenness engagement part

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (Reference) B28B 1/52 B28B 1/52 F term (Reference) 4G012 PA03 4G052 FA08 FB13 FB14 FB38 GA05 GA11 GA25 GB01 4G053 AA07 AA11 AA15 AA19 BB11 BD16 BE05 BE10 BE11 CA03 CA23 EA03 EA33 EA34 EB06 4G055 AA02 AA03 AA05 AC01 CB01 CB05

Claims (4)

[Claims] 1. A mold comprising a substrate, a mold disposed on the substrate, a decorative portion surrounded by the mold and placed on the substrate, and An apparatus for manufacturing a patterned panel, comprising: a mold release device for removing a molded patterned panel; a plurality of concave / convex engaging portions provided around a mold forming a mold; An apparatus for manufacturing a patterned panel, wherein a plurality of concave / convex engaging portions provided around a fitting frame to be fitted can be engaged and disengaged from each other. 2. The patterned panel manufacturing apparatus according to claim 1, wherein a reinforcing bar is bridged inside a fitting frame of the demolding device. 3. The method according to claim 1, wherein the mold is configured to fix the substrate made of a metal plate on a back surface of the decorative portion, and to push up a device for promoting release of the patterned panel around the decorative portion. The apparatus for producing a patterned panel according to claim 1, wherein 4. A method for producing a patterned panel using the apparatus for producing a patterned panel according to claim 3, wherein a curable base material is poured into a mold, filled, and then cured. And a method of manufacturing a patterned panel in which, when the patterned panel is taken out by using the demolding device, a peripheral portion of the cured base material is pushed up using a lifting device, and the base material is peeled from the decorative portion.