JPH07138909A - Mechanical casting method and device for concrete structure - Google Patents

Abstract

PURPOSE:To improve workability by making a form board vertically and laterally movable and making it replaceable when concrete is cast while a mechanical casting device mounted to a car is being moved. CONSTITUTION:A mechanical casting device comprising a form unit, a conveyor for deliverying ready mixed-concrete and a hopper etc., is mounted on a moving car to continuously cast a concrete structure such as a side wall of road. For changing the height of a concrete structure 15, an adjustable screw 18 is rotated to vertically move a crest form 11F, and the screw 18 is fixed at a predetermined height to cast concrete. Next, for changing the width of the structure 15, an adjustable screw 17 is rotated to move boards of a molding form 11C and a trowel finish form 11D in the width direction thereof. Further for casting a concrete structure 15 having various sectional configurations, forms 11C, 11D having desired sectional configurations are employed. By this method, one kind of device can be commonly applied to various kinds of structures, thereby reducing costs.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for sequentially and continuously placing concrete structures such as side walls of roads, guard fences, median strips, gutters, retaining walls, etc. by a mechanical placing device mounted on a vehicle. More specifically, the present invention relates to a method and an apparatus for making it possible to machine concrete structures having different heights, widths and shapes by using the same machine placing machine as it is.

[0002]

2. Description of the Related Art Conventionally, road side walls, guard fences, median strips, gutters, retaining walls, etc. (hereinafter collectively referred to as concrete structures) are usually placed by placing concrete on site. This is the construction method used in. For the method of placing concrete on site, the formwork is artificially assembled and installed, and the concrete is placed in this, so-called artificial work method, and the vehicle is moved sequentially by the machine placing device attached to the vehicle. It can be divided into a so-called mechanical pouring method in which pouring is performed continuously.

FIG. 5 shows an example of the above-mentioned conventionally known mechanical placing system.
8 to FIG. 8, it is as follows. With reference to FIGS. 5 and 6, the mechanical driving vehicle 2 towed by the motor vehicle 1 is supported by a movable support 3 such as a wheel or an endless track. The mechanical pouring vehicle 2 is provided with a belt conveyor 4, and at the end of the belt conveyor 4, a hopper 6 for pouring fresh concrete into the mechanical pouring device 5 is provided. The green concrete placed on the belt conveyor 4 is fed into the hopper 6, and the hopper 6
Is put into the machine placing device 5.

Referring to FIG. 7, the machine placing device 5 includes an outer frame 7
And a mold part 8 held inside the outer frame 7. The outer frame 7 is a vertical gate-shaped material 7A provided on the left and right, a connecting material 7B for connecting the left and right gate-shaped materials 7A, and a gate-shaped material 7
It has a gate shape composed of A and a horizontally placed reinforcing agent 7C that reinforces the connecting material 7B, and a mold frame portion 8 is held therein. The outer frame 7 is fixed to the mechanical driving vehicle 2 by a support member (not shown).

The mold frame 8 has the following mold frame components. That is, referring to FIG. 8, those mold component parts are arranged in order of the leading mold part 8A, the introduction mold part 8B, the molding mold part 8C, and the iron finishing mold part 8D from the front side in the traveling direction of the vehicle. It is composed of.

The operation of the above-mentioned known mechanical placing device is as follows. Reinforcing bars 9 are preassembled on the road, and the formwork portion 8 of the machine placing device 5 is provided so as to cover the reinforcing bars 9. The green concrete is conveyed to the hopper 6 by the belt conveyor 4, and is dropped from the hopper 6 to the introduction form part 8B of the mechanical placing device 5. Some of the ready-mixed concrete dropped onto the introduction form part 8B spills onto the leading form part 8A, but is compacted to a predetermined hardness by vibrating the introduction form part 8B. When the vehicle advances, the ready-mixed concrete that has been compacted in advance by the introduction form part 8B is transferred to the forming form part 8C, where it is formed into a predetermined shape. Then, the molded product molded by the molding frame 8C is surface-finished by the iron finishing mold 8D, and the concrete structure 10 having a predetermined shape is obtained.

The leading mold part 8B, the molding mold part 8C, and the iron finishing mold part 8D are all formed by a mold composed of a gate-shaped plate as shown in FIG. The formwork cannot be easily separated. Therefore, when changing the height and width of the concrete structure 10 to be molded, it is the actual situation that the entire mold frame 8 is replaced and changed.

[0008]

According to the conventionally known machine placing method and apparatus as described above, there are the following problems. First, when the same machine placing device 5 is used, the leading mold part 8A, the introduction mold part 8B, the molding mold part 8
C, since the height, width and shape of the molds forming the iron finishing mold part 8D are the same, it is possible to directly use them to machine concrete structures of different heights, widths or shapes. could not. Therefore, when a concrete structure 10 having a different height, width or shape is mechanically placed by using the conventional machine placing device 5, the entire formwork 8 is once removed and replaced with another formwork 8. However, it takes time and labor to shorten the construction period, and various formwork parts 10 must be prepared, which increases the construction cost.

Therefore, an object of the present invention is to remedy the above-mentioned drawbacks and to make it possible to machine concrete structures having different heights, widths or shapes by using the same machine driving device. Saves time and labor,
It is an object of the present invention to provide a machine placing method and a device for reducing the cost.

[0010]

The features of the present invention are as follows. A machine placing device having a molding form part is installed in a movable vehicle, and the molding form part is a gate-type leading form part, an introduction form part, and a forming form part. It is a trowel finishing form part, and the concrete is continuously fed to the introduction form part by a conveyor, and the vehicle is run to continuously form a concrete form part and a trowel finishing form part. In the machine-placing method, the introduction form part has a box shape, and the width regulating members separated left and right are detachably provided below the introduction form part. Slits are formed on the front and rear surfaces of the parts, and the leading mold parts face each other 2
An L-shaped first top end mold part that is made of a single plate and covers the upper open part of the leading mold part and the slit formed on the front surface of the introduction mold part, The molding mold part and the iron finishing mold part are composed of two opposing plate bodies that are detachably provided, and the upper open part of the molding mold part and the iron finishing mold part and the introduction mold part. An L-shaped second top end mold part that covers the slit formed on the rear surface is detachably provided, and one or both of the plate bodies that form the molding mold part and the iron finishing mold part. Is provided so as to be movable in the width direction by a first moving mechanism, and the top end form part is provided so as to be movable in the vertical direction by a second moving mechanism, and when changing the width of the concrete structure to be molded, There is one of the plates forming the molding frame part and the iron finishing frame part by operating the moving mechanism of 1. Move both of them in the width direction, further replace the top end form part with a wider one, and when changing the height of the concrete structure to be molded, operate the second moving mechanism to operate the second top. When changing the side shape of the concrete structure to be molded by moving the end part in the vertical direction, one or both of the plates forming the molding form part and the iron finishing form part are exchanged, and the machine is placed. A method for placing a concrete structure into a machine, which comprises continuously placing various types of concrete structures without replacing the entire apparatus.

Further, another feature of the present invention is as follows. A machine placing device having a molding form part is installed in a movable vehicle, and the molding form part is a gate-type leading form part, an introduction form part, and a forming form part. It is a trowel finishing form part, and the concrete is continuously fed to the introduction form part by a conveyor, and the vehicle is run to continuously form a concrete form part and a trowel finishing form part. In the machine-placing device that was molded into, the introduction formwork part is box-shaped,
Width-separating members that are separated left and right are detachably provided below the introduction form part, slits are formed on the front and rear surfaces of the introduction form part, and two leading form parts are opposed to each other. An L-shaped first top end mold part which is made of a plate and covers the upper open part of the leading mold part and the slit formed on the front surface of the introduction mold part is provided. The frame portion and the iron finishing mold portion are composed of two opposing plate bodies which are detachably provided, and the upper open portion of the molding frame portion and the iron finishing mold portion and the introduction mold portion rear An L-shaped second top end form part that covers the slit formed on the side surface is detachably provided,
A first moving mechanism is provided for moving one or both of the plates forming the molding frame part and the iron finishing frame part in the width direction by the first moving mechanism, and the top end frame part is moved up and down. A second moving mechanism that enables movement in any direction is provided, so that a large number of types of concrete structures can be continuously placed without exchanging the entire machine placing device. apparatus.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an example of a machine placing device according to an embodiment of the present invention, FIG. 2 is a perspective view and an exploded view of parts showing an example of a mold part of the machine placing device, and FIG. Figure 1
4 is a sectional view taken along line AA of FIG. 4, and FIG. 4 is a sectional view showing an example of a concrete structure.

First, referring to FIGS. 1 to 3, a machine placing method and apparatus according to an embodiment of the present invention will be described. The machine placing apparatus of the present invention is shown in FIGS. Like a mechanical placing device, it is installed in a movable vehicle, has a conveyor and a hopper for feeding fresh concrete, is installed over a preinstalled rebar, and is a continuous concrete structure. Is molded.

As shown in FIG. 1, it comprises an outer frame 12 and a mold part 11 held by the outer frame 12. The outer frame 12 is a vertical portal material 12A provided on the left and right, a connecting material 12B for connecting the left and right portal materials 12A, and a horizontal reinforcing material 1 for reinforcing the portal material 12A and the connecting material 12B.
It is a gate type consisting of 2C and a mold part 1 inside it.
1 is held. The outer frame 12 is fixed to the mechanical driving vehicle by a support member (not shown).

The mold part 11 is composed of the following components. That is, from the front side in the traveling direction of the vehicle, the leading mold part 11
A, the introduction mold part 11B, the molding mold part 11C, and the iron finishing mold part 11D are arranged in this order.

The above-mentioned structure is the same as that of the conventionally known mechanical driving device, but the characteristic components of the present invention will be described in more detail with reference to FIGS. 2 and 3.

The introduction form part 11B has a box shape, an upper part thereof is open, and a width regulating member 13 is detachably provided on the lower part. The width regulating member 13 is the introduction form part 11B.
The width of the ready-mixed concrete thrown into is regulated to the same width as the concrete structure 15 to be automatically placed, and it is separated into left and right sides, and is composed of a slope 13A and a width regulating plate 13B. Slits 14A and 14B are provided on the front surface and the rear surface of the introduction form part 11B. The slit 14A formed on the front surface is for the rebar 16 installed in advance to pass through, and the slit 14B on the rear side is the raw concrete poured into the introduction form part 11B to the forming form part 11C. It is for shifting.

The molding frame parts 11C are installed facing each other 2
It is composed of a single plate-shaped body, and is arranged at the same intervals as the width of the concrete structure 15 to be molded (the width may be the same as or smaller than the width of the slit 14B).

The trowel finishing mold part 11D is composed of two plate-like members which are installed so as to face each other, and are arranged with the same width as that of the molding mold part 11C.

The leading mold parts 11A are installed facing each other 2
It consists of one plate. This leading mold part 11A is
The raw concrete spilled from the introduction form part 11B to the front side is accommodated so as not to be scattered, and at the same time, the pre-installed rebar 16 is positioned therein.

The top mold part 11E covers and closes the upper open part of the leading mold part 11A and the slit 14A, and the top mold part 11F forms the molding mold part 11C and the iron finishing mold part 11D. The upper open part and the slit 14B are covered and closed, and both form a gate-shaped form. Top end form part 11E and top end form part 11F are L
It is a plate that is bent in a letter shape.

Molding mold part 11C and iron finishing mold part 11
D, and the top end mold part 11E and the top end mold part 11F are detachably fixed so that they can be replaced as needed.

With particular reference to FIG. 3, one plate of the molding form part 11C and the trowel finishing form part 11D has a variable adjusting screw 1
It is held by 7 so as to be movable in the width direction of the concrete structure 15. Further, the top end frame portion 11F is also a plate body bent in an L shape, and is held by the variable adjustment screw 18 so as to be movable in the vertical direction.

The leading mold part 11A may have a structure which can be moved in the width direction of the concrete structure by a variable adjusting screw as in the molding mold part 11C and the iron finishing mold part 11D. Further, the top end mold part 11E may be movable in the vertical direction by a variable adjustment screw like the top end mold part 11F.

A method for automatically constructing a concrete structure using the mechanical placing device of the present invention configured as described above will be described below. First, when changing only the height of the concrete structure, the variable adjustment screw 18 is rotated to move the top end mold part 11F (the top end mold part 11E may be changed similarly) up and down. Move in the direction and change the height. When the predetermined height is reached, the variable adjusting screw 18 is stopped and concrete is poured.

Next, when changing the width of the concrete structure, the variable adjusting screw 17 is rotated to form the molding frame 1
1C, one plate of the iron finishing mold part 11D is moved in the width direction. (For the leading portion 11A, one plate body may be similarly moved in the width direction.) Then, when the predetermined width is reached, the variable adjustment screw 17 is stopped. in this case,
The top end portion 11F (including the top end formwork portion 11E if necessary) has a different width, and is therefore replaced.

The machine placing method and apparatus described above are only one embodiment of the present invention, and the present invention is not limited to the above embodiment. For example, instead of the variable adjustment screw mechanism, a hydraulic cylinder mechanism may be used.
That is, it is also possible to adopt a structure in which one plate of the molding frame is moved by a predetermined stroke by the hydraulic cylinder mechanism.

Further, according to the present invention, it is possible to mold the concrete structure 15 having various shapes as shown in FIG. 4 by exchanging the molding mold part 11C and the iron finishing mold part 11D. Become.

[0029]

According to the present invention described above, there are the following technical effects. First, it becomes possible to machine-cast concrete structures having different heights, widths, and shapes using the same machine-casting device. In this case, when changing to a concrete structure with a different width, it is necessary to replace the top mold part, but the replacement work is easier than the one that replaces the entire mold as in the conventional mechanical placing device. Therefore, the construction period can be shortened, and the construction cost can be reduced because it is not necessary to prepare various whole formwork. Also, concrete structures with different shapes can be automatically placed by simply exchanging the molding form part and the iron finishing form part without replacing the entire form frame. In addition to shortening
A reduction in construction cost can be obtained.

[Brief description of drawings]

FIG. 1 is a front view showing a machine placing device according to an embodiment of the present invention.

FIG. 2 is an overall perspective view and an exploded view of a mold part of the mechanical placing device in FIG.

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is a cross-sectional view of various concrete structures obtained according to the present invention.

FIG. 5 is a front view for explaining a conventionally known mechanical placing device.

6 is a plan view of the mechanical placing device of FIG. 5. FIG.

FIG. 7 is a schematic layout view of a conventionally known mechanical placing device.

FIG. 8 is a schematic perspective view of a mold part of a conventionally known mechanical placing device.

[Explanation of symbols]

 11 Formwork Part 11A Leading Part 11B Introduction Formwork Part 11C Molding Formwork Part 11D Iron Finishing Formwork Part 11E Top End Formwork Part 11F Topend Formwork Part 12 Outer Frame 13 Width Control Member 14A, 14B Slit 15 Concrete Structure 16 Rebar 17 Variable adjusting screw mechanism 18 Variable adjusting screw mechanism

Claims (6)

[Claims] 1. A machine placing device having a molding form part is installed in a movable vehicle, and the molding form part is a gate type leading form part and an introduction form part, in the order of the traveling direction of the vehicle. It has a molding form part and a trowel finishing form part.The concrete is continuously fed into the introducing form part by a conveyor and the vehicle is run by the forming form part and the trowel finishing form part. In a machine-placing method in which a structure is continuously molded, the introduction form part has a box-like shape, and a width-regulating member separated left and right is detachably provided below the introduction form part. , A slit is formed on the front and rear surfaces of the introduction mold part, and the leading mold part is composed of two plate members facing each other. The upper open part of the leading mold part and the introduction mold part L-shaped first ceiling mold part that covers the slit formed on the front surface of the part The molding mold part and the iron finishing mold part are composed of two opposing plate bodies in which the molding mold part and the iron finishing mold part are detachably provided. An L-shaped second top end mold part that covers the slit formed on the rear surface of the mold part is detachably provided, and a plate body that constitutes the molding mold part and the iron finishing mold part is provided. One or both of them is provided so as to be movable in the width direction by the first moving mechanism, and the top end form part is provided so as to be movable in the vertical direction by the second moving mechanism to change the width of the concrete structure to be molded. Occasionally, the first moving mechanism is operated to move one or both of the plates forming the molding die part and the iron finishing die part in the width direction, and the top end die part is replaced with a wider one. However, when changing the height of the concrete structure to be molded, When operating the moving mechanism to move the second top end portion in the vertical direction to change the side shape of the concrete structure to be molded, one of the plate bodies forming the molding frame part and the iron finishing frame part. Alternatively, a method for placing a concrete structure in a machine is characterized in that both types are exchanged, and thus various types of concrete structures are continuously placed without exchanging the entire machine placing device. 2. The method for mechanically placing a concrete structure according to claim 1, wherein the first moving mechanism and the second moving mechanism are screw mechanisms. 3. The method for placing a concrete structure in a machine according to claim 1, wherein the first moving mechanism and the second moving mechanism are cylinder mechanisms. 4. A machine placing device having a molding form part is installed in a movable vehicle, and the molding form part is a gate-type leading form part and an introduction form part, in the order of the traveling direction of the vehicle. It has a molding form part and a trowel finishing form part.The concrete is continuously fed into the introducing form part by a conveyor and the vehicle is run by the forming form part and the trowel finishing form part. In a machine-placing device that continuously molds a structure, the introduction form part has a box shape, and width-separating members separated left and right are detachably provided below the introduction form part. , A slit is formed on the front and rear surfaces of the introduction mold part, and the leading mold part is composed of two plate members facing each other. The upper open part of the leading mold part and the introduction mold part L-shaped first ceiling mold part that covers the slit formed on the front surface of the part The molding mold part and the iron finishing mold part are composed of two opposing plate bodies in which the molding mold part and the iron finishing mold part are detachably provided. An L-shaped second top end mold part that covers the slit formed on the rear surface of the mold part is detachably provided, and a plate body that constitutes the molding mold part and the iron finishing mold part is provided. A first moving mechanism that allows one or both of them to be moved in the width direction by the first moving mechanism, and a second moving mechanism that allows the top end form part to move in the vertical direction are provided. A mechanical placing device for concrete structures, which is capable of continuously placing various types of concrete structures without exchanging the entire setting device. 5. The machine for placing concrete structures according to claim 4, wherein the moving mechanism is a screw mechanism. 6. The mechanical placing device for a concrete structure according to claim 4, wherein the moving mechanism is a cylinder mechanism. [0001]