JP3683698B2 - Manufacturing method of residual formwork concrete products - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the present invention, when a concrete retaining wall, a sabo dam, a pier, etc. are constructed, the concrete remains for the remaining formwork which remains as a wall plate on the surface of the concrete after pouring the concrete. In particular, it is formed into a plate with a constant area by using concrete, and a mesh body is embedded in it, and a rectangular framed channel is fixed to the mesh body and a cross-sectional coating is made. It is related with the manufacturing method of the concrete product for residual formwork in which about half of the character-shape was exposed and protruded from the back surface.
[0002]
[Prior art]
Conventionally, when constructing concrete retaining walls, because of the ease of construction, the beauty of the surface finish, and the harmony with the environment, etc., as a wall material to be attached to the surface side of the retaining walls, Product is often used. As shown in FIG. 5, the manufacturing process of the remaining formwork concrete product is performed by first attaching a side plate to the four surrounding surfaces of the bottom plate with a number of fasteners and assembling it. In addition, an embedding fitting mounting step in which the embedding fitting in which the mesh body and the groove member are integrated is floated from the bottom plate and held by a number of fixing fittings in the mold. Next, a mold having a number of fasteners, fixing metal fittings and embedded metal fittings mounted thereon is placed on the table vibrator. D) Material filling step to add vibration to the concrete. After filling, take out the formwork with a number of fastening brackets and fixing brackets attached from the top of the table vibrator.) After carrying out the unloading process and solidifying the concrete, remove the many fastening brackets and fixing brackets. The product is completed by performing a mold disassembling process that releases and disassembles the side plate and the bottom plate.
[0003]
[Problems to be solved by the invention]
However, the side plate of the mold has a large thickness because a large number of fasteners and fixtures are attached so that the concrete does not flow out of the fastening part when vibration is applied to the fluid concrete. Strongly made of a metal material, the weight of the entire formwork is large, and the work of the formwork assembly process, the formwork placement process, and the unloading process is time consuming and the formwork production cost is high. In addition, the formwork dismantling after pouring the concrete takes time to solidify the concrete, and generally it can only be performed once or twice a day, requiring a large number of molds of the same model. However, it is difficult to prepare many products of the same model in terms of profitability, and it is difficult to improve productivity. In the above-mentioned mold assembly process, there is nothing that can be separated into an inner mold frame and a manufacturing mold body that houses the inner mold frame and whose surroundings are reinforced during the material filling process. There has been no method of using a large number of inner molds in the production mold body.
[0004]
In the present invention, an inner mold can be taken out from one production mold body. By preparing a large number of inner molds, the weight of the inner mold to be actually worked on is reduced, and each process is easy. It is an object of the present invention to provide a method for producing a concrete product for a remaining mold, which can reduce the cost of manufacturing a mold and reduce the cost of the product by improving the productivity.
[0005]
[Means for Solving the Problems]
The present invention has been made in order to solve the above problems, that is, the assembled inner mold frame is stored in the manufacturing mold body, the inner mold frame is fixed to the manufacturing mold body, and the embedded bracket Is floated and held inside the inner formwork, and then the concrete is poured into the inner formwork. After the concrete is vibrated, the inner formwork is immediately taken out from the manufacturing formwork body, This is a manufacturing method in which the inner formwork is disassembled after the product is solidified to complete the product. At this time, it is preferable to push it out from below the inner mold and carry it out.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a diagram showing the main structure of a mold according to an embodiment used in the manufacturing method of the present invention, and this figure number will be described. (1) is a manufacturing formwork body attached to the upper surface of the table vibrator (5), and the manufacturing formwork body (1) is formed in a box body having an opening extending upward. (2) is an inner mold frame comprising a detachable bottom plate (2a) and four side plates (2b) which are housed and fixed in the production mold body (1) and assembled, and the bottom plate (2a It is preferable to use a member provided with a grid-like reinforcing rib at the lower part of (). The inner mold (2) is lightened and a large number are prepared. (3) is a side plate retainer for pressing and fixing the side plate (2b) of the inner mold (2) from above, and the side plate retainer (3) is attached to the manufacturing mold body (1). . (4) is a grooved material support for holding the embedded metal fitting (8) floating from the bottom plate (2a) in the inner mold (2), and the grooved material support (4) is a manufacturing mold. It is attached to the frame body (1). This structure is inserted and supported in the opening of the channel member (82). (6) is an extruding device provided below the table vibrator (5), and the extruding device (6) is used when the inner mold (2) is unloaded from the production mold main body (1). The bottom plate (2a) of the mold (2) is pushed up.
[0007]
(7) is a concrete product in the form of a plate that has been solidified with a constant thickness and area, and the surface of the concrete product (7) has a decorative finish (7a) And a groove (7b) for sealing with a caking agent or the like is formed on the side surface (see FIG. 3). (8) is an embedded bracket embedded in the concrete product (7), and the embedded bracket (8) is formed by integrating a metal net (81) and a channel member (82). The net-like body (81) is entirely embedded, and a groove member (82) in which four light groove steels having a U-shaped cross section are arranged in a square shape and is framed by welding, About half of the U-shaped cross section is embedded. As the remaining mold form concrete product (7) in which the embedded metal fitting (8) is embedded, the present inventors have proposed in Japanese Patent Application Nos. 9-26083, 26084, 114311, and 237667. Is preferable (see FIGS. 3 and 4).
[0008]
FIG. 2 is a diagram showing the steps of the production method of the present invention, and will be described based on this. One manufacturing formwork body (1) is previously attached to the upper surface of the table vibrator (5). The side plate presser (3) and the channel member support (4) are attached to the production mold body (1). First, four side plates (2b) are attached to the four surfaces around the bottom plate (2a) to assemble the inner mold frame (2). The assembled inner mold (2) is housed in the manufacturing mold body (1), and the side plate (2b) of the inner mold (2) is pressed from above with the side plate retainer (3). B) is fixed to the manufacturing formwork body (1). Then, an embedded metal fitting (8) is inserted into the inner mold (2), inserted into the opening of the groove member (82) and supported by the groove member support (4), and a mesh shape. The body (81) is floated and held from the bottom plate (2a). Next, a concrete is poured into the inner mold (2) and a vibration is added to the concrete. At this time, it is homogenized by applying vibration so that no nest is formed inside the inner mold (2). Immediately after filling the material, the extrusion device (6) provided below the table vibrator (5) is actuated to push up the bottom plate (2a) of the inner mold (2) to produce the inner mold (2). When it is lifted higher than the upper surface of the mold body (1), the inner mold frame unloading step is carried out for unloading the inner mold frame (2) to a predetermined place with a forklift. After the concrete inside the inner mold (2) is solidified, the inner mold (2) is disassembled) The inner mold disassembling process is completed and the product is completed.
[0009]
At this time, the side plate presser (3) and the channel member support (4) are not required for the inner mold (2) in the inner mold assembling process, so that the inner mold assembling work can be simplified. In addition, unlike the conventional heavy one, the inner mold (2) is reduced in weight. When the inner mold (2) is lightened, the inner mold (2) can be easily and quickly removed in a short time (b) storage and fixing process, e) unloading process, and f) disassembly process. In addition, since the production cost of the inner mold (2) can be reduced and many can be prepared, the material filling process from the next to the inner mold (2) can be performed, and the conventional table vibrator can be used. The operating rate is far higher than the operation rate of (5), products can be manufactured continuously, and workability is extremely improved. In addition, since each type of concrete product (7) can be manufactured by simply replacing the inner mold (2), the capital investment of the mold can be greatly reduced.
[0010]
【The invention's effect】
The present invention is configured as described above and has the effects described below.
[0011]
As in claim 1, first, an inner mold frame (2) composed of an assembled detachable bottom plate (2a) and a plurality of side plates (2b) is housed in a production mold body (1). 2) is fixed to the manufacturing formwork body (1), and the embedded metal fitting (8) in which the net (81) and the groove member (82) are integrated in the inner formwork (2) is attached to the bottom plate (2a). Then, the concrete is poured into the inner formwork (2), and after the concrete is vibrated, the inner formwork (2) is immediately taken out from the manufacturing formwork body (1). The inner formwork (2) can be taken out from one manufacturing formwork body (1) by disassembling the inner formwork (2) after the concrete is solidified to obtain a finished product. By preparing a large number of the inner molds (2), the productivity can be improved and the cost of the product can be reduced. In addition, since the inner mold (2) to be actually worked is not attached with many fastening brackets and fixing brackets as in the prior art, and it is not necessary to manufacture the inner mold (2) as hard as the conventional one. The weight has been reduced, and the assembly, installation, unloading, and disassembly work of the inner mold (2) can be performed easily and quickly, and the production cost of the inner mold (2) has been reduced, and many can be manufactured. Furthermore, when switching the product model, it is possible to cope with the change by changing only the inner mold (2), so that the switching can be performed smoothly and the capital investment of the mold can be greatly reduced.
[0012]
When the inner formwork (2) is unloaded from the manufacturing formwork body (1) as in claim 2, it is pushed up from below the bottom plate (2a) of the inner formwork (2) to produce the manufacturing formwork body (1 ) By lifting the inner mold (2) higher than the upper surface, the forklift can be used to carry out, so that the carryout can be done quickly and easily, and the production efficiency of the product is easily improved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing the main structure of a mold used in the present embodiment.
FIG. 2 is an explanatory view showing the steps of the production method of the present invention.
FIG. 3 is a cross-sectional view showing the main structure of the concrete product of the present embodiment.
FIG. 4 is a perspective view showing an embedded bracket of the concrete product of the present embodiment.
FIG. 5 is an explanatory view showing the steps of a conventional manufacturing method.
[Explanation of symbols]
1 Manufacturing formwork body 2 Inside formwork
2a Bottom plate
2b Side plate 8 Embedded bracket
81 mesh
82 Channel material

Claims (2)

An inner mold (2) composed of a detachable bottom plate (2a) and a plurality of side plates (2b) assembled in the production mold body (1) is housed, and the inner mold frame (2) is stored in the production mold body. (1) is fixed, and the embedded metal fitting (8) in which the mesh body (81) and the groove member (82) are integrated in the inner mold (2) is floated and held from the bottom plate (2a). Next, after pouring a flowable concrete into the inner mold (2) and applying vibration to the concrete, the inner mold (2) is immediately taken out from the manufacturing mold body (1). Then, after the concrete is solidified, the inner mold (2) is disassembled, and the manufacturing method of the remaining mold form concrete product. The residual mold according to claim 1, wherein when the inner mold (2) is unloaded from the manufacturing mold body (1), the inner mold (2) is pushed out from below the bottom plate (2a) of the inner mold (2) and unloaded. Manufacturing method for concrete products for frames.

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