JPH07290433A - Manufacture of large-sized imitation rock block - Google Patents

Abstract

PURPOSE:To effectively prevent a mold from deforming and breaking by a method wherein an imitation rock mold consisting of a flexible inner mold, which assumes the shape of a natural rock, and a rigid outer mold is put into a steel plate box-like from so as to fill the outside of the outer mold with sand and the inside of the inner mold with color concrete. CONSTITUTION:An inner mold 2 is formed by applying a liquid green rubber on the surface of a natural rock, for example, laying a reinforcing loose fabric on the green rubber and further applying the green rubber by the proper thickness and, after the rubber solidifies, stripping from the natural rock. An outer mold 3 is formed by blowing a fiber reinforced plastic by the proper thickness against the surface of the inner mold 2. Further, a box-like form 4 is made of a steel plate and formed by decomposably assembling a large number of unit steel plates 7. Outside an imitation rock mold 1 consisting of the inner mold 2 and the outer mold 3, the box-like form 4 is assembled so as to extensively support the outside of the outer mold with the box- -like form 4 through sand under the condition that the imitation rock mold 1 is put in the box-like form 4 in order to fill the inside of the inner mold 2 with color concrete through a filling port 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a large pseudo rock block.

[0002]

[Object of the Invention] Pseudo-rock blocks (concrete blocks whose appearance resembles natural rock) are, for example, Mitsuihei 5-162.
Applying the technology disclosed in No. 14, coloring inside the inner mold of a mold composed of an inner mold rich in flexibility that takes the shape of the surface of natural rock and an outer mold rich in rigidity to receive it It can be manufactured by filling with concrete.

By the way, in the case of manufacturing the pseudo rock block as described above, if the pseudo rock block is large, the large pressure of the concrete filled inside the inner mold acts outward on the mold, so that the mold is deformed or deformed. There is a risk of damage.

It is an object of the present invention to provide a method for manufacturing a large pseudo rock block provided with means for effectively preventing the deformation and breakage of the mold described above.

[0005]

DETAILED DESCRIPTION OF THE INVENTION The structural feature of the method for producing a large pseudo-rock block of the present invention is that the pseudo-rock is composed of an inner mold having a high flexibility and an outer mold having a high rigidity for receiving the surface shape of natural rock. The molding die is placed in a box-shaped frame made of an iron plate, the outer mold is filled with sand, and in this state, the inner mold is filled with colored concrete.

When carrying out the present invention, it is preferable to use a box-shaped frame formed by assembling a large number of unit iron plates so as to be disassembled.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings showing one embodiment of the present invention, 1 is a pseudo rock forming mold, 2 is an inner mold, 3 is an outer mold, 4 is a box-shaped frame, 5 is sand, and 6 is a concrete filling port. ing.

For the inner mold 2, for example, a liquid raw rubber is applied to the surface of natural rock, a rough cloth for reinforcement is laid thereon, and then the raw rubber is applied to an appropriate thickness. It is made by waiting for the rubber to set and peeling it from the natural rock.

The outer mold 3 is made by spraying a fiber-reinforced plastic on the surface of the inner mold 2 to an appropriate thickness. The fiber-reinforced plastic may be sprayed either before or after the inner mold 2 is peeled from the natural rock. Good.

The inner mold 2 and the outer mold 3 are divided into a plurality of pieces so that they can be easily removed from the mold.

The box-shaped frame 4 is made of an iron plate, and the one shown in the figure is formed by assembling a number of unit iron plates 7 in a disassembleable manner.

The unit iron plate 7 is similar to a steel form panel for concrete construction, and is reinforced by an edge member 8 and an intermediate rib member 9, and the edge member 8 is provided with a connecting bolt insertion hole 10. There is.

When carrying out the present invention, the inner mold 2 and the outer mold 3 are
Assembling the box-shaped frame 4 on the outside of the pseudo-rock forming die 1 consisting of
With the pseudo-rock forming die 1 placed in the box-shaped frame 4, the outer die 3
The outer side of the inner mold 2 is filled with sand 5, and the outer mold 3 is entirely supported by the box-shaped frame 4 with the sand 5 interposed therebetween. Fill with concrete.

[0014]

According to the method for producing a large pseudo-rock forming block of the present invention, the outer mold of the pseudo-rock forming mold is entirely supported on the outer side of the outer mold by the iron-made box-shaped frame through sand, and the inner mold of the pseudo-rock forming mold is Since the concrete is filled inside, the outer pressure of the pseudo rock forming mold and the sand and the box-shaped frame work together to resist the large pressure of the concrete, and the pseudo rock forming mold is not deformed or damaged. The effect that there is no need to strengthen the connection portion of the formed pseudo rock forming die can be expected.

When using a box-shaped frame formed by assembling a large number of unit iron plates so as to be disassembled, it is convenient to manufacture pseudo rock blocks having different sizes by changing the size of the box-shaped frame. It is also advantageous in that the unit iron plate can be repeatedly used.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing an embodiment of the present invention.

[Explanation of symbols]

1: Pseudo-rock forming die, 2: Inner die, 3: Outer die, 4: Box frame,
5: Sand, 6: Concrete filling port, 7: Unit iron plate, 8:
Edge material, 9: intermediate rib material, 10: connecting bolt insertion hole.

Claims (2)

[Claims] 1. A pseudo-rock forming die composed of an inner die having a high flexibility and an outer die having a high rigidity for receiving the surface shape of natural rock is placed in a box-shaped frame made of an iron plate, A method for producing a large pseudo-rock block, characterized in that the outer mold is filled with sand, and in this state, the inner mold is filled with colored concrete. 2. The method for manufacturing a large pseudo rock block according to claim 1, wherein a box-shaped frame formed by disassembling a large number of unit iron plates is used.