JPH0829538B2 - Equipment for manufacturing concrete stone blocks - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete pseudo stone block manufacturing apparatus having a surface texture similar to that of natural stone.

[0002]

2. Description of the Related Art
It has been carried out to construct river and coastal revetment structures by combining concrete blocks, but rivers and coastal revetments using such concrete blocks are not suitable for the surrounding environment because the artificial feeling is exposed. There were many things. Therefore, recently, a so-called pseudo stone block in which the surface of a concrete block is processed into a natural stone is used to make a harmony with the surrounding environment as much as possible.

By the way, in this type of pseudo-stone block, for example, the outer surface of the block body made of concrete is processed into a natural stone by hand, or the outer surface of the natural stone is transferred to the bottom of a formwork. It is manufactured by pouring concrete into a bowl-shaped formwork device with an open upper part and molding it.However, the former requires a lot of time and labor for the processing work, while the latter costs more. Work is often dangerous because the hardened concrete block must be tumbled when it is taken out of the formwork.Furthermore, in this method, the weight of the concrete block is supported by the formwork. It was pointed out that the problems to be solved were limited to the manufacturing of

[0004]

According to the present invention, therefore, a pseudo-stone block molding form device is provided with an elastic female form frame in which an outer surface of natural stone is transferred to a form body in which a side form is erected on a bottom form. This elastic female form is formed by arranging a top end form made of synthetic resin form, and an air vent hole for concrete press-fitting is opened in a part of the top end form to form one side form. A shutter valve is placed at the concrete pressure inlet that is installed in, and by using the manufacturing device configured by connecting this shutter valve to the concrete pumping mechanism through a flexible pipe, it is cheap, safe, convenient, and of high quality. It is intended to be able to manufacture a pseudo stone block.

In this case, if a flexible pipe connected to the concrete pumping mechanism is branched and a pseudo stone block molding form device in which a shutter valve is arranged is connected to each branch pipe, a plurality of pseudo stone blocks can be opened and closed by opening and closing the shutter valve. Can be manufactured efficiently at the same time.

[0006]

In the pseudo stone block manufacturing apparatus according to the present invention,
The concrete fed from the concrete pumping mechanism through the flexible pipe is pressed into the pseudo stone block molding formwork device by opening the shutter valve, and a part of the concrete is pressed from the air vent hole of the top end formwork. When it overflows, the feeding of concrete is stopped, the shutter valve is closed, and further cured for a predetermined period of time to manufacture a pseudo stone block.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of a pseudo stone block manufacturing apparatus according to the present invention will be described below in detail with reference to the accompanying drawings.

Referring to FIG. 1, in a pseudo stone block manufacturing apparatus 10 according to the present invention, a side formwork 14 made of the same material is erected on a bottom formwork 12 appropriately divided from a steel plate or the like. And the elastic female mold 18 made of rubber or the like having the outer surface of a desired natural stone transferred to the inner surface 18a thereof and the elastic female mold 18
And a top end form 22 composed of a covered form 20 made of FRP and divided into a plurality of substantially the same shape, and a pseudo stone block forming form device 24 is provided. The elastic female mold 1
A plurality of air vent holes 26 are formed in the cover 8 and the covered mold 20, preferably at appropriate places near the top.

Also, these elastic female molds 18 and FR
The covered mold 20 made of P is an elastic female mold disclosed in “Method for manufacturing concrete pseudo-stone block” (Japanese Patent Application No. 5-152642) filed by the applicant of the present invention on May 31, 1993. It is preferable to use a structure similar to the frame and the holding mold.

A concrete pressure inlet 28 is provided at a predetermined position of the side mold 14 of the thus constructed pseudo stone block molding mold device 24, and the concrete pressure inlet 28 is provided with a stopper 30. The shutter valve 32 is detachably connected. In addition, the shutter valve 32
Similarly, a flexible pipe 34 is connected to the other end of the flexible pipe 34 by a stopper 30 and the flexible pipe 34 is connected to the concrete pumping mechanism 3
Connect to 6.

Next, a procedure for manufacturing a pseudolithic block by the manufacturing apparatus 10 having the above-described structure will be described. First, the side formwork 14 is mounted on the bottom formwork 12 installed in a production yard, and the elastic female formwork 18 and the FRP covered formwork 20 are covered on the side formwork 14, and each of them is bolted or the like. The formwork device 24 is assembled by connecting with the stoppers.

Next, the concrete pressure inlet 2 of the side mold 14
8, the shutter valve 32 is attached by the stopper 30, and the concrete pressure inlet 28 and the concrete pressure feeding mechanism 3 are attached.
6 is connected via a flexible tube 34, the shutter valve 32 is opened, and concrete in which the slump is set to about 18 cm is pressure-fed into the formwork device 24, for example. The concrete cement mortar pumped into the formwork device 24 in this manner causes the elastic female formwork 18 and the covered formwork 2.
When it starts to overflow from the air vent hole 26 at a relatively high position of 0, the concrete pumping mechanism 36 reduces the amount of concrete pumped, and when the concrete mortar overflows from all the air vent holes 26, the concrete pumping mechanism 36 And the shutter valve 30 is closed.

As the concrete is pressed into the formwork device 24, the air in the formwork device 24 is naturally discharged from the air vent holes 26 of the top end formwork 22, so that the placing work is smooth. And the improvement of quality can be achieved.

Then, when the concrete in the formwork device 24 has hardened, the shutter valve 32 is slightly opened to confirm that the concrete does not flow backward, and the shutter valve 32 is removed from the formwork device 24 and cleaned appropriately. In addition,
Needless to say, after closing the shutter valve 32, the flexible tube 34 removed from the shutter valve 32 can be connected to another formwork device to perform a new press-fitting operation of concrete.

On the other hand, the concrete that has been press-fitted into the formwork device 24 is covered with the covered formwork 2 after a predetermined curing period has elapsed.
0, the elastic female mold 18, and the side mold 14 are removed in this order to form a pseudo stone block. Then, the obtained pseudo stone block may be appropriately transposed and waited for installation.
It should be noted that when concrete is press-fitted into the formwork device 24, an appropriate number of female threaded insert members are previously arranged at predetermined positions in the formwork device 24, and the pseudo stone block after the formwork device 24 is removed is transferred or At the time of installation, it is preferable to screw a bolt or the like to the insert member for use because the work can be facilitated.

Further, FIG. 2 shows a concrete pumping mechanism 36.
Forming device 24 for pseudo stone block molding in which the flexible tube 34 connected to the above is branched and the shutter valves 32 are respectively arranged.
Another concrete pseudo-stone block manufacturing apparatus according to the present invention in which each of the branch pipes 38 is connected to the branch pipe 38. In this case, a plurality of concrete pseudo-stone blocks are simply and efficiently molded by opening and closing the shutter valve 32. Is something that can be done.

[0017]

As described above, according to the apparatus for manufacturing a concrete pseudo stone block according to the present invention, since it is not necessary to manually process the pseudo stone block, not only can the pseudo stone block be manufactured at a low cost, but also in the formwork apparatus. Since concrete is placed by press-fitting, it has various advantages such as easy work, reliable air removal can be achieved, and high quality pseudo-stone block can be obtained.

Although the preferred embodiment of the concrete pseudo-stone block manufacturing apparatus according to the present invention has been described above, the present invention is not limited to this embodiment, and is within a range not departing from the spirit of the present invention. Of course, various design changes can be made.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional explanatory view showing a preferred embodiment of a concrete pseudo stone block manufacturing apparatus according to the present invention.

FIG. 2 is a schematic plan view showing another embodiment of the manufacturing apparatus for the concrete pseudo stone block according to the present invention.

[Explanation of symbols]

10 pseudo stone block manufacturing equipment, 12 bottom formwork,
14 side formwork, 16 formwork body, 18
Elastic female formwork, 20 covered formwork, 22 top end formwork,
24 formwork device, 26 air vent hole, 2
8 concrete pressure inlet, 30 stoppers, 3
4 flexible pipe, 32 shutter valve, 36 concrete pumping mechanism, 38 branch pipe,

Claims (2)

[Claims] 1. An elastic female mold in which an outer surface of a natural stone is transferred to a mold main body in which a side mold is vertically arranged on a bottom mold, and a synthetic resin mold covering the elastic female mold. A pseudo stone block molding form device in which the top end form is arranged, and a shutter valve is arranged at the concrete pressure inlet provided in the side mold, and the shutter valve is provided with a concrete pumping mechanism through a flexible pipe. And an air vent hole at the time of concrete press-fitting in the top end formwork. 2. The concrete pseudo stone according to claim 1, further comprising branching a flexible pipe connected to the concrete pumping mechanism, and connecting and arranging a pseudo stone block molding form device in which a shutter valve is arranged on each branch pipe. Block manufacturing equipment.