JP3612111B2 - Concrete slurry supply apparatus and method - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a concrete slurry supply device and a supply method, and can be used for manufacturing a building material made of lightweight cellular concrete to be cured by an autoclave.
[0002]
[Background]
In recent years, a unit type building which is a so-called industrialized building in which a building unit manufactured in advance at a factory is assembled at a construction site has been built. In this unit type building, a lightweight cellular concrete panel cured by an autoclave is used as an outer wall material.
Such lightweight cellular concrete panels are made of, for example, cement and silica sand as main raw materials, and agitation and mixing of concrete slurry mixed with bubbles in a mixer, and using a ladle, the slurry is formed into a panel formwork. After being placed inside and temporarily cured, the molded panel is cured in a high temperature, high pressure autoclave.
[0003]
[Problems to be solved by the invention]
By the way, as the lightweight cellular concrete panel used for the outer wall material of the unit type building described above, it is required to prepare not only those with the same area but also those with different sizes of large area and small area. There is a case. When manufacturing such panels with different areas at the factory, prepare a plurality of molds with different sizes corresponding to the panels with different areas. It is necessary to provide a plurality of ladles for carrying the slurry to different molding molds.
[0004]
However, when manufacturing panels with different areas at the factory, if the slurry is poured into a plurality of ladles sequentially from one mixer, and the slurry is transported to each mold, it is transferred from the mixer to each ladle. There is a problem that the total time of pouring becomes longer and the production efficiency is deteriorated.
Further, if a plurality of mixers are provided corresponding to the number of ladles, there is a problem that the equipment cost increases and a large installation space is required in the factory.
[0005]
And such a problem is not only when manufacturing lightweight cellular concrete panels used for exterior wall materials of unit type buildings, but also when trying to manufacture multiple types of concrete products with different sizes in one factory It is a problem that occurs widely and generally.
[0006]
The objective of this invention is providing the concrete slurry supply apparatus and supply method which can aim at the effective utilization of the space in a factory while being able to manufacture a concrete product efficiently.
[0007]
[Means for Solving the Problems]
The present invention aims to achieve the above object by providing a large ladle and a small ladle, and allowing the ladle to be housed inside the large ladle.
Specifically, the present invention provides a concrete slurry supply apparatus for supplying concrete slurry that has been stirred and mixed in a mixer to a mold for molding a concrete product and supplying the concrete slurry from a position below the mixer in a state where the concrete slurry is stored. A large ladle that is moved to an upper position of a large-capacity mold, and is stored in the large ladle at least under the mixer and stored in the large ladle from the lower position of the mixer. Between a small ladle that is moved to an upper position of a small-capacity molding mold, and a state in which the ladle is housed inside the large ladle and a state that is located outside the large ladle Elevating means for elevating and lowering is provided.
[0008]
Here, it is preferable that a plurality of small ladles are accommodated in the large ladle.
[0009]
Moreover, as a suitable application example of the present invention, there is a case where the concrete slurry is used for a building material made of lightweight cellular concrete to be cured by an autoclave.
[0010]
Furthermore, the present invention provides a concrete slurry supply method for supplying concrete slurry stirred and mixed in a mixer to a mold for molding concrete products, and a ladle is housed inside the large ladle. The concrete slurry is poured simultaneously from the mixer into the ladle and into the ladle, and then the ladle is taken out of the ladle by lifting means, and then the ladle and the ladle. When the ladle is moved separately and the ladle is moved to a position above the large-capacity molding mold, the concrete slurry is poured into the large-capacity molding mold from the ladle. On the other hand, when the ladle is moved to a position above the small-capacity molding mold, the ladle is inserted into the small-capacity molding mold from the ladle. Wherein the pouring cleat slurry.
[0011]
[Action]
In the present invention, a large ladle and a small ladle are prepared as ladles for transporting the concrete slurry from the mixer to the molding form for the concrete product. First, a small ladle is stored inside the large ladle, and in this state, concrete slurry is poured simultaneously into the large ladle and into the ladle from one mixer. Therefore, the slurry having exactly the same composition is poured into the large ladle and the small ladle.
[0012]
Next, after the ladle is taken out of the large ladle by the elevating means, the ladle and the ladle are separately moved in a state where the concrete slurry is stored.
When the large ladle is moved to an upper position of the large-capacity forming mold, concrete slurry is poured into the large-capacity forming mold from the large ladle to mold a large concrete product.
On the other hand, when the ladle is moved to the upper position of the small-capacity molding mold, concrete slurry is poured into the small-capacity molding mold from the ladle to mold a small concrete product.
[0013]
For this reason, since the slurry is poured simultaneously into the large ladle and the small ladle from one mixer, the time required for pouring is shortened compared to the case where the slurry is poured into a plurality of ladles sequentially, and the production efficiency is reduced. Is improved.
In addition, since it is not necessary to provide a plurality of mixers corresponding to a plurality of ladles, the equipment cost can be reduced and the space in the factory can be effectively used, thereby achieving the object.
[0014]
Further, when a plurality of small ladles are accommodated inside the large ladle, the production efficiency can be improved, the equipment cost can be reduced, and the space in the factory can be effectively utilized.
[0015]
In addition, when the present invention is applied to a concrete slurry used for a lightweight cellular concrete building material that is cured by an autoclave, such a lightweight cellular concrete building material is intended to shorten the construction period or reduce the construction cost. In addition, since it is often used in so-called industrial buildings, the effects of the present invention such as improvement in production efficiency and reduction in equipment costs become even more remarkable.
[0016]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 show an overall configuration diagram of the concrete slurry supply apparatus 1 of the present embodiment. FIG. 1 is an elevational layout diagram in the factory, and FIG. 2 is a planar layout diagram.
The concrete slurry supply apparatus 1 is provided in a factory that manufactures a building unit that constitutes a unit type building, and constitutes a production line for a lightweight cellular concrete panel that is autoclaved and used as an outer wall material.
[0017]
On the floor surface 10 corresponding to the first floor in the factory, a plurality of carts 12 on which a large-capacity molding form 11 for molding a large-area lightweight cellular concrete panel is placed side by side. A reinforcing bar 13 is installed inside each mold 11.
A small area for forming lightweight lightweight concrete panels of small area at two locations on the floor surface 20 corresponding to the second floor in the factory (two locations in the direction orthogonal to the plane of the paper in FIG. 1, two locations on the left and right in FIG. 2). A plurality of carriages 22 on which a molding mold 21 having a volume is placed are arranged side by side. A reinforcing bar 23 is installed inside each mold 21.
[0018]
A mixer 30 for stirring and mixing the concrete slurry is installed at the right position in FIG. 1 in the factory. Below the mixer 30, the slurry is transferred from the mixer 30 to the large-capacity molding mold 11 and from the mixer 30 to the small-capacity molding mold 21 disposed at two locations. Two small ladles 50 are provided. At the lower position of the mixer 30, the two small ladles 50 are housed inside the large ladle 40.
[0019]
The mixer 30 mixes air bubbles with, for example, cement and silica sand, which are main raw materials, and stirs and mixes them with the stirring blades 31 provided inside, and from the inlet 32 provided at the bottom, The slurry 2 that is stirred and mixed at the same time is poured into the ladle 40 and the two small ladles 50. Therefore, the injection port 32 is provided so as to straddle the large ladle 40 and the two small ladles 50, as indicated by a one-dot chain line in FIG.
[0020]
As shown by a two-dot chain line in the figure, the large ladle 40 is guided by a guide rail 60 provided on the lower side, and is self-propelled from a position below the mixer 30 to a position above the large-capacity mold 11. It is like that.
[0021]
Each ladle 50 is housed in the ladle 40 and moves from the lower position of the mixer 30 to the intermediate position K together with the ladle 40, and then moves away from the ladle 40 in two directions. A self-propelled movement is made from the intermediate position K to the upper positions of the two small-capacity forming molds 21 along the ceiling rail 61 extending in the direction.
[0022]
FIG. 3 is a perspective view showing a state where the small ladle 50 is taken out from the inside of the large ladle 40 at the intermediate position K.
Two support rods 51 are fixed to the upper end portion of the ladle 50, and both end portions of these support rods 51 are in a state where the ladle 50 is stored inside the ladle 40. The small ladle 50 is supported by being hooked to the upper end portion of 40.
[0023]
Also, lifting chains 52 are attached to the four corners of the upper end of the ladle 50, and these chains 52 are bundled above the ladle 50 by a ring-shaped member 53. A hook 71 of a lifting / lowering means 70 that lifts and lowers the ladle 50 is hooked on the ring-shaped member 53.
[0024]
1 and 3, the elevating means 70 includes a hook 71, a hoisting chain 72 connected to the hook 71, an elevating motor 73 that winds the chain 72 and elevates the ladle 50, and the elevating means 70. And an operation pendant 74 for operating the motor 73.
[0025]
Further, in the vicinity of the elevating motor 73, there is provided a horizontal moving motor 80 for moving the elevating means 70 and the small ladle 50 connected thereto in the horizontal direction along the ceiling rail 61. The horizontal movement motor 80 is operated by an operation pendant 74. The horizontal movement motor 80 and the operation pendant 74 constitute a horizontal movement means.
[0026]
In this embodiment, the slurry 2 is supplied to the molding molds 11 and 21 as follows.
First, each ladle 50 is housed in the ladle 40, and in this state, the concrete slurry 2 is poured into the ladle 40 and the ladle 50 simultaneously from the mixer 30.
[0027]
Next, in a state where the small ladle 50 is housed in the large ladle 40, the slurry 2 stored therein is moved to the intermediate position K.
At the intermediate position K, the operator hooks the hook 71 of the lifting / lowering means 70 on the ring-shaped member 53 attached to each ladle 50 and then operates the operation pendant 74 to move the chain 72 by the lifting / lowering motor 73. The small ladle 50 is wound up and moved upward, and the small ladle 50 is taken out from the inside of the large ladle 40. After removal, the required amount of slurry 2 remains in the large ladle 40 and in each ladle 50 (see FIG. 3).
[0028]
Subsequently, the large ladle 40 and the small ladle 50 in a state where the slurry 2 is stored are moved separately. That is, the large ladle 40 is self-propelled along the guide rail 60, and each small ladle 50 is self-propelled along each ceiling rail 61 by each horizontal movement motor 80.
[0029]
Thereafter, when the large ladle 40 is moved to a position above the large-capacity molding mold 11, the large ladle 40 is inserted into the large-capacity molding mold 11 from the inlet 41 provided at the lower portion of the large ladle 40. Slurry 2 is poured into a large concrete product.
Then, after the slurry 2 is placed, the molding form 11 is sent together with the carriage 12 to the processing position for the next process such as autoclave curing, and the molding form placed on the next carriage 12 in a standby state. 11 is arranged at a predetermined position to prepare for the next slurry 2 placement.
[0030]
On the other hand, when the ladle 50 is moved to a position above the small-volume molding mold 21, the small ladle 50 is inserted into the small-volume molding mold 21 from the injection port 55 provided at the lower portion of the ladle 50. Slurry 2 is poured into a small concrete product.
After the slurry 2 is placed, the molding form 21 is sent to the processing position of the next process such as autoclave curing together with the carriage 22, and the molding form placed on the next carriage 22 in the standby state. 21 is arranged at a predetermined position to prepare for the next placement of the slurry 2.
[0031]
The large ladle 40 and the small ladle 50 after the slurry 2 is poured into the molding molds 11 and 21 are returned to the lower position of the mixer 30. Then, the small ladle 50 is housed in the large ladle 40 again, and the supply of the slurry 2 from the mixer 30 is awaited.
[0032]
According to such a present Example, there exist the following effects.
That is, since the slurry 2 can be simultaneously poured into the large ladle 40 and the small ladle 50 from one mixer 30, the time required for pouring is shortened as compared with the case where the slurry is sequentially poured into a plurality of ladles. The manufacturing efficiency can be improved.
[0033]
Further, since it is not necessary to provide a plurality of mixers corresponding to a plurality of ladles, it is possible to reduce the equipment cost and to effectively use the space in the factory.
[0034]
Furthermore, since two small ladles 50 can be accommodated in the large ladle 40, it is possible to further improve the production efficiency, reduce the equipment cost, and effectively use the space in the factory.
[0035]
Further, since the large ladle 40 and the small ladle 50 are self-propelled from the position of the mixer 30 to the positions where the slurry 2 is placed on the molding molds 11 and 21, the burden on the operator is reduced and the manufacturing time is reduced. Can be shortened and manufacturing efficiency can be improved.
And since the taking-out operation | work from the large ladle 40 of each ladle 50 is performed by the raising / lowering means 70 provided with the motor 73 for raising / lowering, this also reduces a burden of an operator, shortening of manufacturing time, and manufacturing efficiency. Can be improved.
[0036]
In addition, this invention is not limited to the said Example, The deformation | transformation etc. in the range which can achieve the objective of this invention are included in this invention.
That is, in the embodiment, the concrete slurry supply apparatus 1 is provided with two small ladles 50, but the concrete slurry supply apparatus of the present invention has one or more than three small ladles. It may be provided.
[0037]
Further, the arrangement of the guide rails 60 and the ceiling rails 61 is not limited to the arrangement shown in FIG. 2 of the above embodiment, and the large ladle 40 and the small ladle 50 are guided to the molding molds 11 and 21. It is optional if possible.
[0038]
【The invention's effect】
As described above, according to the present invention, a small ladle is stored inside the large ladle, and in this state, slurry is poured simultaneously into the large ladle and into the ladle. Compared with the case where the slurry is poured into a plurality of ladles sequentially, the time required for pouring can be shortened, the production efficiency can be improved, and it is not necessary to provide a plurality of mixers corresponding to the plurality of ladles. There is an effect that the equipment cost can be reduced and the space in the factory can be effectively used.
[0039]
In addition, when a configuration is adopted in which a plurality of ladles are housed inside the large ladle, the effects of improving manufacturing efficiency, reducing equipment costs, and effectively using space in the factory can be achieved. There is.
[0040]
Furthermore, when the present invention is applied to a concrete slurry used for a lightweight cellular concrete building material cured by an autoclave, such a lightweight cellular concrete building material is aimed at shortening the construction period or reducing the construction cost. Since it is often used in so-called industrial buildings, the effects of the present invention such as improvement in production efficiency and reduction in equipment costs can be exhibited more remarkably.
[Brief description of the drawings]
FIG. 1 is an elevational arrangement diagram in a factory showing the overall configuration of a concrete slurry supply apparatus according to an embodiment of the present invention.
FIG. 2 is a plan layout view in a factory showing the overall configuration of the concrete slurry supply apparatus of the embodiment.
FIG. 3 is a perspective view showing a state in which a small ladle is taken out from the inside of the large ladle according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Concrete slurry supply apparatus 2 Concrete slurry 11 Large-capacity molding mold 21 Small-capacity molding mold 30 Mixer 40 Large ladle 50 Ladle 70 Lifting means

Claims (4)

In a concrete slurry supply apparatus for supplying concrete slurry agitated and mixed in a mixer to a molding form for a concrete product, the concrete slurry is stored in a state where the concrete slurry is stored above a large volume forming form. A large ladle that is moved to a position, and at least a position below the mixer, stored in the ladle and storing the concrete slurry, and from above the mixer above the small volume forming mold A ladle that is moved to a position, and elevating means that elevates and lowers the ladle between a state where the ladle is housed inside the ladle and a state where the ladle is located outside the ladle A concrete slurry feeder characterized by the above. The concrete slurry supply apparatus according to claim 1, wherein a plurality of the small ladle are accommodated inside the large ladle. 3. The concrete slurry supply apparatus according to claim 1 or 2, wherein the concrete slurry is used for a lightweight cellular concrete building material that is cured by an autoclave. In the concrete slurry supply method, in which the concrete slurry agitated and mixed in the mixer is transported to the mold for forming the concrete product and supplied, a small ladle is accommodated in the large ladle, and in this state, the large ladle is removed from the mixer. The concrete slurry is poured into the ladle and into the ladle at the same time, and then the ladle is taken out of the ladle by lifting means, and then the ladle and the ladle are separated. The concrete slurry is poured from the large ladle into the large-capacity molding mold when the large ladle is moved to a position above the large-capacity molding mold. The concrete slurry is moved from the ladle into the small volume molding mold when the ladle is moved to an upper position of the small volume molding mold. Concrete slurry supply wherein the pouring.

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