JPH04314503A - Concrete manufacturing and force feeding device - Google Patents

Abstract

PURPOSE:To maintain a quality of placing concrete and contrive an improvement in yield of concrete. CONSTITUTION:At least a coarse aggregate pin 13, fine aggregate pin 14, cement pin 15 and water pin 16 are mounted on a rest 10 where a concrete pump 1 is installed and respective materials are discharged through those pins while measuring the respective, materials. The concrete pump is constituted so that a mixer 11 is mounted on a hopper 2 of the above-mentioned concrete pump 1 and the inside of the mixer 11 and the inside of the hopper 2 are either communicated with each other or intercepted. The materials through the above- mentioned pins 13, 14, 15, 16 each are fed within the above-mentioned mixer 11 and kneaded, the obtained concrete is transferred to the hopper 2 through the mixer 11 and fed immediately with pressure by the concrete pump 1.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete manufacturing and pumping apparatus used for carrying out a series of operations from mixing materials to pumping fresh concrete at a concrete pouring site.

0002

[Prior Art] When a concrete pump is used to pump concrete to a place where concrete is to be placed, generally the concrete is supplied to coarse aggregate bins, fine aggregate bins, cement bins, water bins, etc. in a batch plant. Coarse aggregate, fine aggregate, cement, water, and other chemical admixtures, if necessary, are discharged while being measured, and then these multiple materials are collected in a collection chute and then fed to a mixer. Concrete is manufactured by mixing the concrete, and the concrete manufactured at the batch plant is loaded into a concrete mixer truck and transported by the concrete mixer truck to a concrete placement site, where the concrete is mixed from the concrete mixer truck. Concrete is received into the hopper of the pump and the concrete is pumped out by the concrete pump.

0003

[Problem to be solved by the invention] However, from the perspective of the quality of concrete, concrete is
It is said that it is preferable for concrete to be poured within 0 minutes, and for this reason it is necessary to shorten the transportation time of concrete as much as possible, but due to recent traffic conditions, the remoteness of concrete pouring work sites, etc. In many cases, it is not possible to shorten the transportation time of concrete, and there is a risk that the quality of concrete cannot be maintained. In addition, among the concrete transported to the concrete pouring site, any remaining concrete after the concrete pouring work cannot be used and is discarded on the spot, resulting in a low concrete yield. There is.

SUMMARY OF THE INVENTION Therefore, the present invention aims to eliminate the problem of concrete transportation, thereby making it possible to control the quality of concrete, and also to improve the yield of concrete.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a platform on which a concrete pump is mounted.
A coarse aggregate bin, a fine aggregate bin, a cement bin, and a water bin are each installed so that the load can be measured using a load cell, and a mixer is placed on the hopper of the concrete pump, and the mixer is Install the input gate at the bottom,
Further, on the table, a device for feeding coarse aggregate from the coarse aggregate bin and fine aggregate from the fine aggregate bin into the mixer;
A device for supplying cement from the cement bin to the mixer, and a device for supplying water from the water bottle to the mixer, so that the concrete mixed by the mixer can be pumped by a concrete pump. composition.

[0006]

[Operation] Materials necessary for concrete production such as coarse aggregate, fine aggregate, cement, and water are measured and supplied to the mixer at the concrete placement site, and the concrete obtained by mixing with the mixer is placed at the bottom of the mixer. By putting the concrete into the hopper of the concrete pump through the input gate, it can be immediately pumped to the pouring site by the concrete pump. In addition, it is possible to control the supply of materials for producing concrete while monitoring the concrete placement status, making it possible to produce the required amount of concrete and eliminating waste, improving concrete yield. can be achieved.

[0007]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show an embodiment of the present invention, in which a swinging tube 3 bent in an S-shape is placed in a hopper 2 having two suction and discharge ports at the lower part of the front side in the left-right direction. The concrete cylinders 4a and 4b are arranged in parallel on the front side of the hopper 2, and each concrete cylinder One end of 4a, 4b is attached to the hopper 2
The two concrete cylinders 4a, 4b are connected to the front surface of the hopper 2 so as to communicate with the two suction/discharge ports, and the two main hydraulic cylinders 6a, 6a, 6b are connected to the other ends of the two concrete cylinders 4a, 4b via the cleaning chamber 5.
6b, and the two concrete cylinders 4a,
Each concrete piston 7 in 4b and each main hydraulic piston 8 in the two main hydraulic cylinders 6a, 6b are attached to both ends of two piston rods 9 extending through the cleaning chamber 5, The concrete in the hopper 2 is retreated by alternately moving the main hydraulic pistons 8 in the main hydraulic cylinders 6a and 6b forward and backward, and simultaneously moving the concrete pistons 7 in the two concrete cylinders 4a and 4b alternately forward and backward. Concrete cylinder 4
A concrete pump 1 is installed on a stand 10, which is designed to suck concrete into concrete cylinders 4b or 4b, which has already sucked concrete, through the swinging pipe 3. do. A biaxial kneading mixer 11 is installed above the hopper 2 of the concrete pump 1, and a charging gate 12 is provided at the bottom of the mixer 11 to input the concrete obtained by mixing into the hopper 2 below. Further, on the table 10, there are a coarse aggregate bin 13, a fine aggregate bin 14, and a cement bin 15.
A water bottle 16 is installed respectively, and a load cell 17 is installed in each.
At the same time, discharge gates 18, 19, 20, 21 are attached to the lower ends of each bin 13, 14, 15, 16, and the coarse aggregate (
gravel) and fine aggregate (sand) released from the fine aggregate bin 14
A belt conveyor 22 conveys the cement and feeds it into the mixer 11 by being sandwiched between it and another belt conveyor 23 at the rising part, and a pump (not shown) discharges the cement from the cement bin 15. Each bottle 13,
Materials necessary for concrete production are discharged from discharge gates 18 to 21 while being measured from 14, 15, and 16, and guided to a mixer 11, where they are kneaded to obtain concrete. Although not shown, a drive device for the swing tube 3 of the concrete pump 1 and a drive device for the stirring blades 11a of the two-screw mixer 11 are naturally provided.

When implementing the apparatus of the present invention having the above configuration, the apparatus of the present invention is installed at a concrete placement site, a concrete transport pipe is connected to the swing pipe 3, and concrete to be pumped is placed at a concrete placement site. Allow yourself to be guided to the location.

In the above state, the coarse aggregate, fine aggregate, cement, and water necessary for concrete production are transported to the concrete casting site by respective dedicated transport vehicles, and the coarse aggregate is transported to the coarse aggregate on the platform 10. In addition to supplying fine aggregate to the aggregate bin 13, similarly, fine aggregate is supplied to the fine aggregate bin 14, and cement is supplied to the cement bin 15.
Then, water is supplied to the water bottles 16 and the load cells 17
By measuring the load on each bin 13, 14, 15, 16, the amount of each material discharged from each bin is determined. Release aggregate, cement and water. The coarse aggregate discharged from the coarse aggregate bin 13 and the fine aggregate discharged from the fine aggregate bin 14 are transferred to the mixer 11 by a belt conveyor 22.
The cement discharged from the cement bottle 15 is supplied into the mixer 11 through the pipe 24, and the water is supplied into the mixer 11 from the water bottle 16 through the pipe 25. The above-mentioned multiple materials are mixed, and the concrete obtained by this mixing is transferred from the input gate 12 to the hopper 2 of the concrete pump 1, and the concrete transferred to the hopper 2 is poured by the concrete pump 1. It is pumped to the location. While kneading is being carried out in the mixer 11, the required amount of the corresponding material is supplied to each of the bins 13, 14, 15, and 16, respectively. Also, mixer 11
When the concrete obtained by mixing is transferred to the hopper 3, the input gate 12 is closed and each bin 13, 1
Materials are discharged from the discharge gates 18, 19, 20, 21 of 4, 15, 16 and supplied to the mixer 11 to produce concrete.

[0011] As mentioned above, concrete is manufactured by having the series of operations of kneading the materials necessary for concrete production, manufacturing concrete, and then pumping the concrete to the concrete pouring site performed at the concrete pouring site. It is possible to achieve the process from pouring to pouring in a short time, and there is no risk of degrading the quality of the concrete. In addition, the amount of concrete to be produced can be controlled by adjusting the amount of material supplied to the mixer 11 from each bin 13, 14, 15, 16, so the required amount of concrete can be controlled while monitoring the concrete placement situation. This eliminates the problem of a large amount of concrete remaining at the end of concrete pouring work, making it possible to eliminate waste and improve yield.

It should be noted that the present invention is not limited to the above-mentioned embodiments; for example, although a stationary type is illustrated in the drawings, wheels may be attached to the platform 10 to make it a trolley type.
This cart may be towed and moved, or it may be mounted on a vehicle and used as a pump truck with raw material bins and a mixer. Further, the mixer 11 may be provided with a chute for taking out the concrete to the outside, so that when the concrete is not being pumped by the concrete pump, the concrete can be fed from the mixer into a concrete mixer vehicle or the like through the chute. or,
The mixer 11 may be of a type other than the two-screw kneading type. Although the concrete pump is shown as a swinging pipe type, it may also be a penetrating type or other types. It may also be equipped with a mixer 11 for mixing the materials.
A device other than the one shown in the drawings may be used as the device for supplying the water.

[0013]

As described above, according to the concrete production pumping apparatus of the present invention, a concrete pump is installed on a table, a mixer is placed on the hopper of the concrete pump, and the concrete pump is placed on the bottom of the mixer. A charging gate is provided for charging concrete into the hopper, and on the above platform,
At least a coarse aggregate bin, a fine aggregate bin, a cement bin, and a water bin are installed so that materials are discharged from each bin while being measured, and the materials discharged from each of the bins are supplied to the mixer. Therefore, by placing the device of the present invention at a concrete pouring site and implementing it, a series of operations from measuring and discharging the materials necessary for concrete production from a bottle and kneading to pumping concrete can be carried out. Concrete can be placed consistently at the site, and the time from concrete production to placement can be significantly shortened compared to the conventional transportation method using concrete mixer trucks. The quality of concrete can be maintained constant at all times, and the amount of concrete produced can be controlled according to the concrete placement situation, so the required amount of concrete can be produced near the end of concrete pouring work. By doing so, waste of concrete can be eliminated and the yield of concrete can also be improved.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of the present invention.

FIG. 2 is a view taken along arrow A in FIG. 1;

[Explanation of symbols]

1 Concrete pump 2 Hopper 10 units 11 Twin screw kneading mixer 12 Input gate 13 Coarse aggregate bin 14 Fine aggregate bin 15 Cement bin 16 Water bottle 17 Load cell 22 Belt conveyor (supply device) 24, 25 Pipe line (supply device)

Claims (1)

[Claims] Claim 1: At least a coarse aggregate bin, a fine aggregate bin, a cement bin, and a water bottle are mounted on a platform on which a concrete pump is installed, so that the load of each is measured by a load cell, and A mixer is placed on the hopper of the pump, and a feed gate is provided at the bottom of the mixer to allow concrete to be fed into the hopper.Furthermore, coarse aggregate and fine aggregate from the coarse aggregate bin are placed on the stand. 1. A concrete production pumping device, characterized in that it has a configuration comprising devices for supplying fine aggregate from a bottle, cement from a cement bottle, and water from a water bottle to the mixer.