JP2812146B2 - Paper decorative formwork - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for forming an uneven pattern on the surface of a concrete wall surface or a lightweight foam concrete plate .
It relates to paper decorative mold frame that is used in order.

[0002]

2. Description of the Related Art Conventionally, in order to form a concrete wall or the like with a concavo-convex pattern, first, as shown in FIG. 7, a resin, rubber, cement After the molding material 22 is filled and cured, the mold is removed from the mold, and as shown in FIG. 8, a decorative mold frame 23 having an uneven pattern formed on the surface is formed. Next, as shown in FIG. 9, the decorative form 23 is placed on a substrate 24 made of plywood or the like.
Are aligned and fixed from the back side to form a mold 25. This formwork 25 is used as the wall surface 26 of the target concrete structure.
Then, after assembling them in parallel with a predetermined spacing, closing the gaps between the side and bottom surfaces, pouring the concrete material 27 into its internal space and curing it, and then removing the formwork 25, , An uneven pattern can be formed. The removed formwork 25 is contaminated around by the protruding concrete material 27,
Because it is damaged when removed, it is disposed of without being reused.

[0003]

However, among the discarded molds 25, since the substrate 24 is made of plywood or the like, it can be easily incinerated, but it is made of resin or rubber. The makeup mold 23 may generate toxic gas or harmful by-products by incineration, and its treatment is a serious problem from the viewpoint of environmental protection. In view of this, various methods for repeatedly using the decorative formwork 23 have been studied. However, it is a fact that an effective method cannot be obtained due to the time required for the construction and the high cost. .

[0004] The present invention has been made in view of such circumstances, without causing environmental pollution after use, superior to provide paper decorative mold and its purpose.

[0005]

In order to achieve the above object, the present invention provides a paper material having a substantially uniform thickness of 1 to 10 mm.
Are compression molded to a constant has been uneven pattern paper in a recess in the back surface of the uneven pattern transfer surface, which complement <br/> strength member which may be burned without pollution is filled back surface is flattened Made decorative formwork
It is referred to as Abstract.

[0006]

In other words, the present inventor has sought to use a paper-made mold instead of a resin or rubber mold that has been conventionally used as a mold for providing an uneven pattern on the concrete surface. After using it for producing a concrete product with a textured pattern, he recalled that the paper mold could be incinerated without causing environmental pollution, which would be more efficient. However, there has been no practical method for making a decorative formwork from paper, so the research was repeated. As a result, the raw material obtained by dissolving pulp, waste paper, etc. is pressure-injected into a mold made of a porous elastic body with continuous pores, and is suction-dehydrated. It was found that the obtained paper molded product could be easily obtained. However, according to the above manufacturing method,
The product cannot be made too thick, 1-10mm
When the above-mentioned molded article made of paper is used as it is as a mold frame, the irregularities made of paper may be deformed by concrete pressure when concrete is poured . There
Then, if the back side of the molded article made of paper is filled with a reinforcing member such as a granular paper material or a piece of wood to flatten the back side, sufficient strength as a mold can be obtained, and at the time of construction Have been found to be easier to handle, and have reached the present invention.

Next, the present invention will be described in detail based on embodiments.

[0008]

FIG. 1 shows a partial cross section of an embodiment of a decorative paper frame used in the present invention. This paper decorative form 2
Reference numeral 0 denotes a molded product 20a obtained by compression-molding a paper material into a concavo-convex pattern having a substantially uniform thickness. The inside of the concave portion on the back side of the molded product 20a is filled with a reinforcing material 20b for reinforcing the unevenness of the molded product 20a, and the back surface 31 is flattened.

The molded article 20a made of the above-mentioned paper material is obtained, for example, as follows. First, a mold as shown in FIG. 1 is prepared. This mold is provided with side plates 3 around the bottom plate 2.
Seal frame 1 for lower mold, which is provided with
And an upper mold seal frame 10 having a similar configuration.
A lower mold 5 made of a rubber elastic sponge with continuous pores and a similar upper mold 5 'are fitted inside each of them. However, the lower mold 5 and the upper mold 5 'are held in a state where they are lifted by the bars 7 so as to maintain a constant gap 6 with the seal frames 1 and 10, respectively. The upper and lower molds 5 ′ and 5 are formed with concave and convex portions which are engaged with each other with a predetermined gap therebetween to form a molding space 8 with a concave and convex pattern.

Reference numeral 11 denotes a molding material tank,
The papermaking raw material 13 which is a molding material is pressure-cast into the molding space 8 through the pressurized material 2. Reference numeral 14 denotes a suction / discharge pipe provided with a three-way valve 16. By switching the three-way valve 16, at the time of molding, as shown by an arrow A, the space 6 in both the seal frames 1 and 10 is suction-dehydrated to form the two molds 5. ,
The raw material 13 in the molding space 8 is sucked and dehydrated through the 5 ′ continuous pores, and conversely, pressurized air is discharged into the molding space 8 at the time of demolding as shown by an arrow B. Reference numeral 15 denotes a packing which is attached to a boundary surface between the upper and lower seal frames 1 and 10 and has a function of sealing the inside of both seal frames 1 and 10.

First, using the above-mentioned mold, in the closed state as shown in the drawing, the same raw material 13 as used for ordinary papermaking is formed while pressing from above and below as shown by arrow C, and forming space 8.
It is poured at a predetermined pressure into the inside. Next, the suction / discharge pipe 1
From 4, vacuum suction is performed as indicated by an arrow A, and the state is maintained for a predetermined time to suck and dehydrate the raw material 13 in the molding space 8. At this time, even if suction dehydration is performed at a considerable degree of vacuum, the suction force is appropriately alleviated through the continuous pores of the porous elastic body having continuous pores of the upper mold 5 ′ and the lower mold 5, so that the inside of the molding space 8 is reduced. Conveyed to. Therefore, the suction force in the suction dehydration does not adversely affect the molding of the raw material 13.
Then, after the suction dehydration, the three-way valve 16 is switched to blow compressed air into the molding space 8, and the upper mold sealing frame 1 is opened.
The upper mold 5 'is opened by removing 0, and the molded product is taken out. Then, the molded product is sufficiently dried to obtain a molded product 20a as shown in FIG. This molded product 20a
Has an uneven pattern with a substantially uniform thickness as a whole.

On the other hand, as a reinforcing material 20b (returning to FIG. 1) to be filled on the back side of the molded product 20a, for example, a paper material formed into a granular shape is prepared. The filling of the recess is performed as follows. That is, first, the molded product 20a
Turn over. Also, the reinforcing material 20b to be filled
Is mixed with a paste such as polyvinyl alcohol in a wet state to make it sticky. Next, the reinforcing material with glue 20
b is filled in the concave portion of the molded article 20a, and the surface (back side as a mold) 31 of the reinforcing material 20b layer is leveled and flattened, and then left for a predetermined time to dry the reinforcing material 20b layer.
Reinforcing members 20b and between reinforcing members 20b and molded article 2 made of paper
0a. In this way, a paper decorative formwork 20 as shown in FIG. 1 can be obtained.

The paper decorative form 20 thus obtained
In the same manner as in the past, parallelly assembling to the wall surface of the target concrete structure at a predetermined interval, closing the gap between the side surface and the bottom surface, then pouring the concrete material into the internal space and curing. . This state is shown in FIG. 4 (26 is a concrete wall surface, 40 is an uneven pattern portion obtained by curing). Then, by removing the decorative paper frame 20, the concrete wall surface 40a having a concavo-convex pattern can be obtained as shown in FIG.

Then, the removed paper decorative form 20 is
All are made of paper which is harmless to the environment, and the paste used for fixing the reinforcing material 20b is also harmless, so that it can be incinerated as it is without causing environmental pollution.

However, the paper material on the surface of the molded product 20a is partially adhered to the concrete and easily remains on the concrete wall surface 40a from which the decorative paper frame 20 is removed.
The obtained concrete wall surface 40a is desirably washed and finished with water or the like injected at a high pressure.

Incidentally, the molded product 20a of the paper decorative mold 20 is
Is not limited to the mold shown in FIG. 2 and may be formed by any mold. However, the thickness of the molded product 20a is set to 1 to 10 mm.

Further, as the reinforcing material 20b for reinforcing the molded article 20a from the back side, a granular paper material is used in the above embodiment, but the present invention is not limited to this.
Anything that burns without pollution can be used. The use of resin fat particles, rubber particles and the like is unsuitable for the purpose of the present invention because they cause environmental pollution during incineration.

Further, in the above-described embodiment, the molded article 2 made of paper is used.
0a and the reinforcing material 20b were used as they were as a paper decorative formwork 20 for on-site construction. For example, as shown in FIG. 6, in a frame body 50 combined with a veneer plate or the like,
First, the reinforcing material 20b is filled in a scattered state, and a paper molded product 20a is pressed thereon and attached thereto, and the molded product 2 is formed.
The outer peripheral portion of Oa may be fixed to the frame body 50 to obtain the decorative paper frame 20 with the frame body 50. According to this method, it is possible to save the trouble of fixing the reinforcing members 20b to each other and the reinforcing member 20b and the molded product 20a with glue or the like.

In the above embodiment, the decorative form 20 made of paper is used.
Was used for on-site construction, but it can also be used in the case of mass-producing a lightweight foamed concrete plate with a concavo-convex pattern in a factory or the like.

[0020]

As described above, the present inventionPaper decorative formwork
IsThe paper material is recessed with a substantially uniform thickness of 1 to 10 mm.
Compression molded into a convex pattern, and the non-polluting, non-polluting
The back surface is flattened by filling with a sinterable reinforcing member.
AndLightweight and handlingNot only is it easy to
Has moderate strength. Therefore, the paper decorative form
According to the production of concrete products with uneven patterns
Workability is good and quick work can be performed. Only
Also,the aboveAfter manufacturing concrete products with uneven patterns,
The used paper-made formwork may cause environmental pollution as it is.
It has the advantage that it can be harmlessly incinerated.
I do.

[Brief description of the drawings]

FIG. 1 is a partial sectional view of one embodiment of a paper decorative formwork used in the present invention.

FIG. 2 is an explanatory diagram of an example of a molding die used for manufacturing the paper decorative mold.

FIG. 3 is an explanatory diagram of a molded product molded by the molding die.

FIG. 4 is an explanatory diagram of a usage mode of the paper decorative mold.

FIG. 5 is an explanatory view of a concrete wall surface with a concavo-convex pattern obtained by using the paper decorative form.

FIG. 6 is an explanatory view of another embodiment of a paper decorative mold used in the present invention.

FIG. 7 is an explanatory diagram of how to make a conventional decorative mold frame.

FIG. 8 is an explanatory view of a conventional decorative mold frame.

FIG. 9 is an explanatory diagram of a use mode of the decorative mold.

[Explanation of symbols]

 20 Paper decorative formwork 20a Molded product 20b Reinforcing material

Claims (1)

(57) [Claims] 1. A paper material having a substantially uniform thickness of 1 to 10 mm.
Are compression molded to a constant has been uneven pattern, in a recess in the rear side of the surface to be uneven pattern transfer surface, the back surface complement <br/> strength member which can be burned in pollution-free is filled is flattened A paper decorative formwork characterized by the following.