JP2588872B2 - Manufacturing method and apparatus for secondary concrete product with exterior material pre-attached - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an arc-shaped concrete secondary product to which decorative exterior materials such as granite, marble, tile, brick, etc. are attached, and a circular concrete using the concrete secondary product manufactured by this method. The present invention relates to an apparatus for manufacturing a structure and an arc-shaped concrete secondary product.

[0002]

2. Description of the Related Art The work of applying tiles and stones as decorative exterior materials on the surface as the exterior of buildings, and the work of applying tiles and stones as decorative exterior materials to civil engineering concrete products such as parks and roads are increasing year by year. In addition, the number of products that drive tiles and stones into concrete products is increasing year by year.

In recent years, in building construction in the construction industry, as a building material for an exterior building as described above, a product in which a concrete PC board or curtain wall board is pre-attached with an exterior material such as a tile or a stone material is produced in a factory. Fastening to steel frames is becoming common in the construction industry. Also, in park construction, general houses, etc., construction is carried out with emphasis on aesthetics, such as sticking stones and non-slip tiles. In the civil engineering industry, concrete L is used for earth retaining works such as residential land development and road construction.
A mold block is used, but there is a problem in aesthetics since the surface is concrete, and in order to make this L-shaped block washed out and a matrix-processed product, and to make it even more luxurious, it is generally necessary to stack building stones. Is being done.

Conventionally, as a method of driving an exterior material into these concrete products at a factory, a surface side of an exterior material such as a tile is stuck and arranged on a double-sided adhesive sheet, and polyethylene is placed between the exterior materials. A tile sheet pack is made by putting jointing material made of sponge, and this is stuck on a concrete formwork with a double-sided adhesive sheet and lined, and then concrete is poured. In the meantime, a method was generally used in which an operator manually pushed a putty material or a sealing material and then poured concrete.

[0005]

By the way, in the above-mentioned tile sheet pack, the sponge joint material made of polyethylene has poor adhesion to the exterior material, and the dimensional error of the exterior material causes the joint material between the exterior material and the joint material to be poor. There is a gap between them, and when placing concrete, it is not possible to completely prevent concrete milk from infiltrating the surface, and for this reason, after finishing the concrete product, wash the surface of the exterior material with water, etc.
It takes a lot of work time, the production process cannot be streamlined,
In addition, it was very difficult to produce concrete products other than those in which the shape of the exterior material was uniform, for example, by sticking stones.

[0006] In recent years, in some cases, tiles having an uneven surface and not having a smooth surface are used for secondary concrete products. In this case, concrete milk infiltrates the surface anyway. Therefore, it has been difficult to produce a secondary concrete product using the concrete. In particular, it has been very difficult to manufacture a concrete secondary product for a stone having a cracked surface. Further, the conventional manufacturing method can only produce a product in which an exterior material is pre-applied to a flat surface, and it is difficult to obtain a product in which an exterior material is pre-applied to a curved surface.

The present invention solves the above-mentioned problems. In other words, we succeeded in a construction method that can easily and inexpensively complete joint sealing of almost any exterior material with any shape or exterior material on any surface. It aims to provide a method and an apparatus for manufacturing a product.

[0008]

According to a first aspect of the present invention, an arc-shaped form is supported so as to be movable in an arc-shaped direction, and exterior members are arranged in the form. Then, melted paraffin is poured into the joints between the exterior materials located at the bottom of the formwork, and when the paraffins are cooled naturally or forcibly and solidified, the formwork is moved and the next joints are refined. It is located at the lower part, performs injection and solidification of paraffin into this joint, and fills the joint between each exterior material with solidified paraffin by repeating this process.
After integrating each exterior material and solidified paraffin, concrete is poured on the exterior material in the formwork, and after solidification of the concrete, the paraffin is heated and melted and removed in the formwork or in a demolded state, and concrete is removed. The method adopts a method of forming a precast concrete in which an exterior material is driven into a curved surface of the above. In the present invention, adjacent portions of each exterior material may be partially fixed with an adhesive by arranging them in a mold.

In a second aspect of the present invention, the lower part of the exterior material is placed in a paraffin molding die, and molten paraffin is poured into the molding die and solidified by natural or forced cooling.
The exterior material and the solidified paraffin are integrated, the solidified paraffin is released from the molding die, and the solidified paraffin integrated with the exterior material is inserted into an arc-shaped concrete casting mold so that the solidified paraffin comes in contact with the solidified paraffin. This method adopts a method of arranging them side by side and casting concrete on an exterior material in a concrete casting mold.

[0010] In the second aspect of the present invention, the exterior material is put into a mold for forming paraffin, and a liquid not mixed with paraffin is injected into the mold at a lower portion of the exterior material. The molten paraffin is poured into the upper part of the form, cooled naturally or forcibly and solidified, and the exterior material and the solidified paraffin are integrated, and the solidified paraffin is released from the molding mold and integrated with the exterior material. A plurality of solidified paraffins are arranged side by side in an arc-shaped concrete casting mold so that the solidified paraffins are in contact with each other, and concrete is cast on the exterior material in the concrete casting mold. Is also good. In this case, the cladding between the exterior material integrated and solidified paraffin arranged in the concrete casting form is filled by injecting and solidifying the melted paraffin, or the exterior material arranged in the concrete casting form. The contact portion of the integrated solidified paraffin can be welded by heating.

The curved precast concrete secondary products manufactured according to the above-mentioned inventions are connected to each other to be assembled into a cylindrical shape, or are connected to each other to be mounted around a percussion column, or assembled into a cylindrical shape. Reinforcing bars and steel cages can be inserted into the inside, and concrete can be cast inside.

According to a third aspect of the present invention, there is provided a concrete casting mold formed in an arc shape, and a plurality of rotary support members for supporting a lower outer surface of the mold movably in an arc direction. A feed dog such as a chain or a rack is fixed to the lower outer surface along the arc direction, and the mold is moved in the arc direction by a rotating body meshing with the feed dog.

[0013]

[First invention] An exterior material is arranged side by side in an arc-shaped formwork, and molten paraffin is poured into joints between the exterior materials at the lowest position of the formwork, and when the paraffin solidifies, the formwork is formed. Is moved to position the next joint at the bottom, pouring and solidifying paraffin into this joint, and repeating this process for each joint, thereby solidifying the joint between each exterior material with paraffin. Fill and integrate each exterior material with paraffin. Next, concrete is cast on the exterior material in the formwork, and the paraffin is heated and melted after solidification of the concrete, whereby a concrete secondary product in which the exterior material is driven into the curved surface of the concrete is completed.

[Second invention] A molten paraffin is poured into a mold for paraffin molding in which a lower part of an exterior material is placed and solidified, and the exterior material removed from the mold is solidified in an arc-shaped concrete casting mold. Put the concrete on this exterior material, put concrete on this exterior material, melt the paraffin after solidification of the concrete, and remove the paraffin and the paraffin molding form, then the exterior material will be driven into the curved surface The finished concrete secondary product is completed.

[Third Embodiment] An exterior material is arranged in an arc-shaped mold frame supported by a plurality of rotary support members, and paraffin is poured into a joint located at the lowermost portion of the mold frame and solidified. The mold is moved in the arc direction by the rotating body that meshes with, the next joint is located at the lowest position, the paraffin is poured and solidified, and the mold is moved, and the joint is repeated for each joint. If concrete is cast on the top, and the paraffin is heated and melted after solidification of the concrete and removed, a secondary concrete product in which an exterior material is attached to the curved surface can be manufactured.

[0016]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 (A) shows a formwork apparatus used for manufacturing a concrete secondary product in which an exterior material is pre-attached to a curved surface. A concrete formwork form 1 is formed in an arc shape, and its lower part is formed. The outer surface is supported by a plurality of support members 2 so as to be movable in an arcuate direction. A feed dog 3 such as a chain or a rack is fixed on the outer surface of the form 1 along an arc direction, and the form 1 is rotated in an arc direction by a rotating body 4 such as a sprocket or a pinion with which the feed dog 3 meshes. It is designed to be moved. In a first method of manufacturing a secondary concrete product using the above-described formwork apparatus, first, exterior materials A such as granite, marble, tile, and brick are arranged in a formwork 1. At this time, the exterior materials A are arranged such that the surface to be finished faces downward, and joints B are formed between the adjacent exterior materials A. Exterior materials A arranged in form 1
May be left as it is, but the upper surfaces of the adjacent exterior materials are partially fixed with an epoxy-based adhesive C so that the joint spacing is kept constant.

After arranging the exterior materials A in the mold 1, FIG.
As shown in (B), heated and melted paraffin D is poured into the joint B located at the lowermost part of the mold 1, and the paraffin D is solidified by natural cooling or forced cooling by cold air or the like. When the paraffin D is solidified, the mold 1 is slightly moved in the arc direction, the next joint B is positioned at the lowermost part of the mold 1, and the molten paraffin D is poured into the joint B and solidified. The joint B between the exterior materials A is filled with the paraffin D by this repetition process, and the exterior material A and the paraffin D are fixedly integrated. In this way, by repeating the fixation of pouring and solidifying the paraffin D into the joint B located at the lowermost part of the form 1, it is possible to prevent the paraffin D from flowing into the joint B and flowing out to other parts. , Joint B
Can be reliably filled with paraffin D.

When each cladding material A and paraffin D are integrated, concrete E is cast on each cladding material A in the mold 1, and the upper surface of the concrete E is finished in an arc shape along the mold 1, or Finish flat. At this time, a reinforcing bar F for reinforcement is buried in the concrete E, and a connection fitting G is attached around the reinforcing bar F. After the concrete E is solidified and the paraffin D is removed by heating and melting in the mold 1 or after the mold is removed, as shown in FIG. 3, the precast concrete secondary product H having the exterior material A injected into the curved surface is obtained. Complete. As described above, since the melted paraffin is used as the joint material for filling the joint between the exterior materials, the joint is completely sealed regardless of the shape and size of the exterior material A, and the joint depth is also reduced. It can be adjusted freely. Moreover, since the concrete E poured in is gradually clumped and the paste of the concrete E does not flow out to the completely sealed form (1) surface, the surface of the exterior material A has any cracking shape. Even if it does, there is no problem that concrete flows to the surface.

Next, FIGS. 4 to 6 show a second method for producing a secondary concrete product using the formwork apparatus. The paraffin molding die 5 used in the second manufacturing method is formed in a top-opening container having a planar size and depth in which the lower part of the exterior material A is accommodated.

First, the lower part of the exterior material A with its surface facing down is put into the molding die 5, and the melted paraffin D is poured into the interior space of the molding die 5, and solidified by forced cooling such as by natural or ambient water cooling. Cladding material A and paraffin D
And the die 5 are integrated. After removing the paraffin D from the die 5 of the exterior material A, as shown in FIG. 5, a plurality of the paraffins D are arranged in the arc-shaped formwork 1 for placing concrete so that the paraffins D are in contact with each other.

Next, concrete E is poured into the mold 1 and the upper surface thereof is finished in an arc shape or a flat surface with the reinforcing bar F embedded therein. Since the lower part of each cladding material A is covered with solidified paraffin D, and paraffin D is closely arranged, it is possible to prevent concrete E from adhering to the lower surface of cladding material A and flowing between paraffin D. it can. When the concrete E solidifies, the paraffin D is heated and melted in the mold 1 or after demolding, and the paraffin D is
If you remove from the lower part of the seam, the joint is finished with paraffin D,
A precast concrete secondary product H in which the exterior material A is driven into the curved surface of the concrete E is obtained.

In the second manufacturing method, when the paraffins D are sequentially arranged in the mold 1 so as to be in close contact with each other, the paraffins D are slightly heated to melt the adjacent portions, or to melt the gaps between the adjacent portions. It is also possible to produce a concrete secondary product H similar to that shown in FIG. 6 by pouring in paraffin and then casting concrete, and then casting concrete.

FIGS. 7 to 10 show a third method for producing a secondary concrete product using the formwork apparatus. The punch 6 for molding paraffin used in the third manufacturing method is formed in a container having an open top surface having a planar size and depth in which the entire exterior material A is accommodated.

As shown in FIG. 7A, a liquid 7 such as water or hot water which does not mix with paraffin is poured into the lower part of the die 6 and the exterior material A is placed in the die 6 with the surface of the product facing upward. So that the lower part of the exterior material A is immersed in the liquid 7. The melted paraffin D is injected into the punch 6, and the paraffin D is cooled naturally or forcibly and solidified, thereby integrating the exterior material A and the paraffin D. Since the paraffin D floats without mixing with the liquid 7, the paraffin D does not wrap around the lower part of the outer packaging material A, and covers only the upper part of the outer packaging material A. When the paraffin D is released from the die 6 after the paraffin D has been solidified, the solidified paraffin D is placed on the upper part of the exterior material A as shown in FIG.
Are integrated, and the block 8 in which the lower part of the exterior material A is exposed is completed. The block 8 thus completed is placed in the concrete casting mold 1 with the solidified paraffin D down and the paraffin D as shown in FIGS.
Are arranged so that they conflict with each other.

Next, some heat is applied to the mold 1 or the block 9 to melt the surface portion of the paraffin D, and the gaps between the adjacent paraffins D are filled with the melted paraffin to be integrated. In order to fill the gap between the paraffins D, heating may be omitted, and molten paraffin may be poured into the gap to fill the gap. In this case, the mold 1 is moved in the arc direction, and the lowermost position of the mold 1 is moved. Then, the pouring and solidification of the paraffin may be repeated. Thereafter, the reinforcing bar F is incorporated into the formwork 1 and the connection fitting G is set around the form. The concrete E is cast into the formwork 1 in this state.

Although the concrete E flows into the joints between the exterior materials A, since the lower part of the exterior material A is covered with the paraffin D, the concrete E does not go around to the lower part of the exterior material A. After solidification of the concrete E, the paraffin D is removed by heating and melting in the mold frame 1 or after the mold is removed, and the joint is finished with the paraffin D, and the precast concrete secondary product H in which the exterior material A is driven into the concrete curved surface is obtained. Will be obtained.

FIGS. 11 and 12 show different examples of a structure formed by using a precast concrete secondary product manufactured by the first to third manufacturing methods.
In the example shown in FIG. 11, a plurality of concrete secondary products H are arranged in a cylindrical shape, and adjacent concrete secondary products H are connected to each other by bolts with connection fittings G, so that the outer material A Is formed into a cylindrical structure.

In the example shown in FIG. 12, a plurality of concrete secondary products H are attached around the perimeter of the on-site post 9 and the outer peripheral surface is finished with the exterior material A to form a column structure. Similarly, in FIG. 12, a plurality of concrete secondary products H are arranged in a cylindrical shape, and adjacent concrete secondary products H are connected to each other by bolting with connection fittings G and assembled into a cylindrical shape. By inserting concrete into the inside after inserting the reinforcing bar or the reinforcing bar cage 10 into the inside, a pillar structure for construction or civil engineering can be formed.

In the example shown in FIG. 13, a plurality of concrete secondary products H having an exterior material A pre-attached to an arcuate surface are connected to the outer periphery of a pillar I manufactured by a conventional method, and the pillar I is decorated. is there.

[0031]

As described above, according to the present invention, it is possible to efficiently and accurately produce a secondary concrete product in which an exterior material is preformed on an arc-shaped outer surface, and joints are formed using paraffin. Therefore, it is possible to obtain a concrete secondary product having a beautiful joint finish. In addition, since joints are formed by paraffin, product washing work is not required, streamlining the process and reducing costs. Alternatively, it is possible to obtain a product that can completely prevent an accident of peeling the exterior material as compared with a post-pasting method such as pressure bonding. Furthermore, it is possible to provide a structure for construction and civil engineering by using a concrete secondary product in which an exterior material is pre-attached to an arc-shaped surface.

[Brief description of the drawings]

FIG. 1A is a front view showing a first manufacturing method using the manufacturing apparatus of the present invention, and FIG. 1B is an enlarged vertical cross-sectional view showing a state where paraffin is poured into joints of the same.

FIG. 2 is a longitudinal sectional front view showing the concrete casting state of the above.

FIG. 3 is a sectional view of a completed concrete secondary product.

FIG. 4 is a cross-sectional view showing a packaging material, paraffin, and a molding die in a second manufacturing method.

FIG. 5 is a longitudinal sectional front view showing a state in which the same is set on a concrete casting formwork and concrete is poured.

FIG. 6 is a longitudinal sectional view of a completed concrete secondary product.

FIG. 7A is a cross-sectional view showing a packaging material, paraffin, and a mold in a third manufacturing method, and FIG. 7B is a front view showing the packaging material and paraffin removed from the molding.

FIG. 8 is a front view showing a state where the above is set on a concrete casting formwork.

FIG. 9 is a longitudinal sectional front view showing a state in which concrete is cast on the same.

FIG. 10 is a longitudinal sectional view of a completed concrete secondary product.

FIG. 11 is a plan view of a structure using a concrete secondary product.

FIG. 12 is a cross-sectional plan view of a structure using a secondary concrete product.

FIG. 13 is a cross-sectional plan view of a column structure in which a plurality of concrete secondary products are attached to the outer periphery of a column manufactured by a conventional method, and the outer peripheral surface is finished with an exterior material.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Formwork for concrete casting 2 Support member 3 Feed dog 4 Rotating body 5 Removal mold for paraffin molding 6 Removal mold for paraffin molding 7 Liquid 8 Block A Exterior material B Joint C Adhesive D Paraffin E Concrete F Reinforcing steel G Connection fitting

Claims (7)

(57) [Claims] An arc-shaped form is supported so as to be movable in an arc-shaped direction, and exterior materials are arranged side by side in the form, and joints between the exterior materials located at the lowermost part of the form are provided. When the melted paraffin is poured, the paraffin is cooled naturally or forcibly and solidified, and the mold is moved so that the next joint is located at the bottom, and the paraffin is injected and solidified into the joint, By repeating this process, the joints between the exterior materials are filled with solidified paraffin, and after integrating each exterior material with the solidified paraffin, concrete is poured on the exterior material in the formwork, and after the concrete is solidified, the mold is formed. Heat-melting and removing paraffin in the frame or in a demolded state to form a precast concrete in which the exterior material is driven into the curved surface of the concrete, and the exterior material is pre-cast concrete. Manufacturing method of secondary products. 2. The method according to claim 1, wherein adjacent portions of the exterior materials arranged in the formwork are partially fixed with an adhesive. 3. The lower part of the exterior material is placed in a paraffin molding die, and molten paraffin is poured into the molding die and cooled or solidified naturally or forcibly, and the exterior material and the solidified paraffin are integrated. The solidified paraffin is removed from the molding die by molding, and a plurality of solidified paraffins integrated with this exterior material are arranged side by side in an arc-shaped concrete casting mold so that the solidified paraffin contacts the concrete casting mold. A method for manufacturing a concrete secondary product with an exterior material pre-attached, wherein concrete is cast on an exterior material in a frame. 4. An exterior material is placed in a paraffin forming mold, and a liquid not mixed with paraffin is injected into the mold in such an amount that a lower portion of the exterior material is immersed in the mold. The molten paraffin is poured and solidified by natural or forced cooling and solidified, the exterior material and the solidified paraffin are integrated, the solidified paraffin is released from the mold, and the solidified paraffin integrated with the exterior material is formed into an arc shape. A secondary concrete product with an exterior material pre-attached, comprising arranging a plurality of pieces so that the solidified paraffin is in contact with the concrete casting form, and placing concrete on the exterior material in the concrete casting form. Manufacturing method. 5. The method according to claim 3, wherein gaps between the exterior material-integrated solidified paraffin arranged in the concrete casting mold are filled by injecting and solidifying molten paraffin. A method of manufacturing a concrete secondary product with exterior materials. 6. The secondary concrete product with an exterior material pre-attached according to claim 3, wherein a contact portion of the exterior material integrated solidified paraffin arranged in the concrete casting mold is welded by heating. Production method. 7. A concrete casting mold formed in an arc shape, and a plurality of rotating support members for supporting a lower outer surface of the mold movably in an arc direction, wherein the lower outer surface of the mold has An apparatus for manufacturing a concrete secondary product with an exterior material attached, in which a feed dog such as a chain or a rack is fixed along an arc direction, and a mold is moved in an arc direction by a rotating body meshing with the feed dog.