JPH07241835A - Plant for manufacture of secondary product of concrete - Google Patents

Abstract

PURPOSE:To automatically manufacture a secondary product of concrete so as to save labor by controlling operations of a ready-mixed concrete conveying device and ready-mixed concrete supply systems based on a data signal, a manufacturing item setting signal and a ready-mixed concrete request signal. CONSTITUTION:A plurality of ready-mixed concrete supply systems 68 and 69 are constituted by providing a group of feeders 44 consisting of a plurality of ready-mixed concrete feeders 43a-43c and a non-normal service ready-mixed concrete feeders 45 and connecting each of the feeders 43a-43c to product formworks 65a-65c, 70a, 70b in which the ready-mixed concrete is to be placed through first and second passage switching valves 46a-46c and 50a-50c. A data memory device 71 outputs a placing quantity of the ready-mixed concrete and a placing speed for each manufacturing formwork to be used for manufacturing various kinds of secondary products as a data signal. A product item setting device 72 outputs a product item setting signal based on the number of the secondary products to be manufactured and the arrangement of the formworks. Ready-mixed concrete requesting devices 73 and 77 are provided. Based on the outputs from these devices, a ready-mixed concrete conveying device 2 and the ready-mixed concrete supply systems 68 and 69 are controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete secondary product manufacturing plant.

[0002]

2. Description of the Related Art Secondary concrete products such as tunnel segments are manufactured by filling a product form with fresh concrete obtained by kneading aggregates such as cement, water, sand and gravel, and an admixture in a predetermined composition. .

When filling the product form with fresh concrete, the product form is vibrated by a vibrating device such as a table vibrator so that the interior of the product form is uniformly filled with compaction. Work is being carried out.

If this compaction operation is not carried out, fresh concrete is not uniformly filled inside the product form, and voids are formed in the concrete secondary product, so that the strength and external appearance of the concrete secondary product are improved. Will decrease.

On the other hand, when the product form is vibrated by a vibrating device such as a table vibrator, a large vibration sound is generated and fine particles of concrete adhered to the outside of the product form may be scattered around.

Therefore, it has been considered to apply highly fluidized concrete, which has been researched and developed in recent years, to the raw material of the secondary concrete product, and to omit the compacting work for the fresh concrete filled in the product form. There is.

[0007]

However, when superfluidized concrete is applied to the raw material of the secondary concrete product, the raw concrete to be kneaded in the raw concrete manufacturing apparatus such as batcher plant is intermittently applied to the product form. When it is delivered, the properties of highly fluidized concrete may change.

Therefore, when applying the superfluidized concrete to the raw material of the secondary concrete product, the raw concrete to be kneaded in the raw concrete manufacturing apparatus is continuously fed to the product form. There is a need.

[0009] Further, when the fresh concrete is fed to the product formwork by the sending machine, the blockage due to the arch formation of the gravel or the like in the transport pipe, or the aggregate in the fresh concrete flow inside the product formwork There is a case where the flow path of the ready-mixed concrete inside the product form is closed due to the interference between the reinforcing member such as a reinforcing bar arranged inside the product form.

As described above, when the flow path of the raw concrete is blocked or the formwork is broken in the transport pipe or inside the product formwork, the secondary concrete product cannot be efficiently mass-produced. At the same time, if it takes time to clean the transport pipe that has clogged the flow path and replace the product form that has caused the blockage damage with another one, the raw concrete that has been kneaded as the raw material for the concrete secondary product will solidify over time. I may end up doing it.

The present invention has been made in view of the above situation, and an object thereof is to enable efficient mass production of secondary concrete products.

[0012]

In order to achieve the above object, in the concrete secondary product manufacturing plant of the present invention, a plurality of green concrete delivery machines 43a, 43b, 43 are used.
c, a group of transmitters 44 composed of c, an emergency green concrete feeder 45 provided for the group 44, and an inlet port provided for each of the green concrete feeders 43a, 43b, 43c. Is connected to the outlet of the ready-mixed concrete feeders 43a, 43b, 43c and has two outlet ports capable of selectively communicating with the inlet ports, the first flow path switching valves 46a, 46b, 46c.
And the ready-mixed concrete feeders 43a, 43b, 43
tube cleaners 53a, 53b provided for the respective c,
53c and the ready-mixed concrete feeders 43a, 43
One inlet port provided for each of b and 43c is connected to one outlet port of the first flow path switching valves 46a, 46b and 46c, and the other inlet port is connected to the pipe cleaners 53a, 53b and 53c. Second flow path switching valves 50a, 50b, 50c having outlet ports connected to the outlets of the two and selectively communicating with the two inlet ports.
And a product form 65 in which ready-mixed concrete MC should be placed at the outlet ports of the second flow path switching valves 50a, 50b, 50c.
a, 65b, 65c, 70a, 70b, ready-mixed concrete delivery pipes 62a, 62b, 62c, the other outlet port of the first flow path switching valves 46a, 46b, 46c, and an emergency ready-mixed concrete delivery machine. A bypass pipe 48 for connecting the inlet of 45, the outlet of the emergency ready concrete delivery machine 45 and the ready delivery concrete 43a,
Product formwork 65a, 65b, 65c, which is provided with a plurality of ready-mixed concrete supply equipment 68, 69 consisting of a bypass pipe 52 connecting the inlets of 43b, 43c, and is used for manufacturing various concrete secondary products stored in advance , 70a,
70b of the fresh concrete pouring amount and pouring speed per unit, the mixing ratio of the raw concrete MC as the raw material, and the second flow path switching valves 50a, 50b, 50c of the fresh concrete supply equipment 68, 69. A data storage unit 71 for outputting the downstream line capacity as a data signal 78.
And a production item setting device 72 for outputting a production item setting signal 79 based on the number of manually input concrete secondary products to be produced and the formwork arrangement, and the above-mentioned ready-mixed concrete supply facilities 68, 69. The concrete concrete requesting device 73, 77 which outputs the concrete demanding signal 80, 81 by manual or automatic operation, and the cement C, sand S, aggregates G ₁ , G ₂ based on the kneading command signal 26 inputted from the outside. , Water W, an admixture AD and a device for producing ready-mixed concrete capable of outputting a kneading completion signal 33 to the outside when the mixing is completed and discharging the ready-mixed concrete MC when a discharge command signal 34 is inputted from the outside. 1 and a kneading completion signal 33 output from the ready-mixed concrete manufacturing apparatus 1.
And the ready-mixed concrete M discharged from the ready-mixed concrete manufacturing apparatus 1 based on the transfer command signal 41 input from the outside.
Fresh concrete conveying device 2 for supplying C to fresh concrete feeders 43a, 43b, 43c constituting the fresh concrete supply equipment 68, 69, and fresh concrete feed for constructing the fresh concrete supply equipment 68, 69 Load detectors 67a, 67b for detecting the weight of the ready-mixed concrete MC filled in the machines 43a, 43b, 43c,
67c and the product molds 65a, 65b, 65c, 7
0a, 70b, a placing detector 66 for determining whether or not a predetermined amount of ready-mixed concrete MC has been placed, the data signal 78, the manufacturing item setting signal 79, and the ready-mixed concrete request signals 80, 81. Based on this, a kneading command signal 26 is output to the ready-mixed concrete manufacturing apparatus 1, and when a kneading completion signal 33 is input from the ready-mixed concrete manufacturing apparatus 1, a discharge command signal 34 is output to the ready-mixed concrete manufacturing apparatus 1. A kneading calculator 74, a convey calculator 75 that outputs a convey command signal 41 based on the data signal 78 and the manufacturing item setting signal 79 to the ready-mixed concrete conveyer 2, and the load detectors 67a, From the load detection signals 82a, 82b, 82c output from 67b and 67c, the placement detection signal 83 output from each placement detector 66, and the data storage unit 71 The first flow path switching valves 46a, 46b, 46c, the second flow path switching valves 50a, 50b, 50c, and the raw materials which constitute the fresh concrete supply equipment 68, 69 based on the input data signal 78. The present invention is characterized in that it is provided with a concrete delivery machine 43a, 43b, 43c, an emergency fresh concrete delivery machine 45, and a placement computing unit 76 capable of operating each of the pipe cleaners 53a, 53b, 53c.

[0013]

In the concrete secondary product manufacturing plant of the present invention, the data signal 78 output from the data storage 71 is output.
Based on the manufacturing item setting signal 79 output from the manufacturing item setting device 72 and the fresh concrete request signals 80 and 81 output from the fresh concrete requesting devices 73 and 77, the kneading calculator 74 causes the fresh concrete manufacturing device 1 to operate. And the transfer calculator 75 causes the ready-mixed concrete transfer device 2 to operate.
To supply the ready-mixed concrete MC to the ready-mixed concrete feeders 43a to 43c of the ready-mixed concrete supply equipment 68, 69.

Further, the placing calculator 76 operates each of the ready-mixed concrete feeders 43a to 43c, and the ready-mixed concrete feeders 43a to 43c are connected to the product molds 65a to 65c, respectively.
Since the ready-mixed concrete MC is automatically placed on the 70a and 70b, the manufacturing of the concrete secondary product can be saved.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show an embodiment of a concrete secondary product manufacturing plant of the present invention. 1 is a fresh concrete manufacturing device (batcher plant), 2 is a fresh concrete conveying device (trolley hopper), 68, Reference numeral 69 is a ready-mixed concrete supply equipment, 71 is a data storage device, 72 is a manufacturing item setting device, 73 is a ready-mixed concrete request device, 74 is a kneading calculator, 75 is a transfer calculator, and 76 is a pouring calculator.

The construction of the ready-mixed concrete manufacturing apparatus 1 will be described below.

Each of the ready-mixed concrete manufacturing apparatuses 1 has
Fixed amount of cement C, sand S, fine aggregate G ₁, Coarse aggregate G₂,water
W, a mixer (biaxial mixer) 3 for kneading the admixture AD,
Cement storage tank 4 for storing cement C and sand S
Sand storage tank 5 and fine aggregate G₁Fine aggregate storage tank
6 and coarse aggregate G₂Coarse aggregate storage tank 7 for storing water and water W
Water storage tank 8 for storing and admixture storage for storing admixture W
It has a tank 9.

Below the cement storage tank 4, a cement measuring device 10 for measuring the cement C cut out from the cement storage tank 4 is provided via a cement conveying device (screw conveyor) 11.

Below the sand storage tank 5, a sand meter 12 for measuring the sand S cut out from the sand storage tank 5 is provided, and a fine aggregate storage tank 6 and a coarse aggregate storage tank 7 are provided. Below, the aggregate G ₁ , which is cut out from both aggregate storage tanks 6 and 7,
An aggregate measuring device 13 for measuring G ₂ is provided.

Further, below the respective measuring instruments 10, 12, 13 are cement C, sand S, fine aggregate G ₁ and coarse aggregate G ₂ cut out from these measuring instruments 10, 12, 13. A raw material chute 14 for charging the kneading tank of the mixer 3 is provided.

Below the water storage tank 8, a temporary water storage tank 16 and a water storage tank 8 for temporarily storing water (primary water) W ₁ flowing out from the water storage tank 8 via the flow rate adjusting valve 15. A secondary water storage tank 18 is provided for temporarily storing water (secondary water) W ₂ flowing out through the flow rate adjusting valve 17.

Below the storage tanks 16 and 18, a raw material chute 19 for introducing water W ₁ and W ₂ flowing out from the storage tanks 16 and 18 into the kneading tank of the mixer 3 is provided.
Is provided.

The admixture storage tank 9 temporarily stores the admixture AD flowing out of the admixture storage tank 9 through the opening / closing valve 20, the pump 21, the flow meter 22, and the flow rate adjusting valve 23. The tank 24 is connected.

Further, from the outflow admixture storage tank 24, the on-off valve 2
The admixture AD flowing out through 0 is introduced into the kneading tank of the mixer 3.

The ready-mixed concrete manufacturing apparatus 1 having the above-mentioned structure is provided with a kneading controller 25.

When the kneading command signal 26 is inputted from the outside, the kneading controller 25 is provided with a cement conveying device 11 attached to the cement storage tank 4 and a cutting device 2 for cutting out the sand storage tank 5.
7, a cutting device 28 for the fine aggregate storage tank 6, a cutting device 29 for the coarse aggregate storage tank 7, a flow rate adjusting valve 15 attached to the water storage tank 8,
17, the flow rate adjusting valve 23 and the like incidental to the admixture storage tank 9 is operated, and the detection values of the load detection signals output from the load detectors (load cells) 30, 31, 32 of each of the measuring instruments 10, 12, 13 , A predetermined amount of cement C, sand S, fine aggregate G ₁ so that the kneading amount and the mixing ratio corresponding to the kneading command signal 26 are obtained based on the detection value of the flow meter 22 and the like.
The coarse aggregate G ₂ , water W, and admixture AD are introduced into the kneading tank of the mixer 3.

The kneading controller 25 operates the mixer 3, and at the same time the torque value of the drive system of the mixer 3, the timer function and the memory function provided in the kneading controller, provides a concrete concrete MC having a predetermined property. The above-mentioned cement C, sand S, fine aggregate G ₁ , coarse aggregate G ₂ , water W, and admixture AD are kneaded so that the above is obtained, and when the kneading of these raw materials is completed, a kneading completion signal 33 is output to the outside. It is designed to output to.

Further, when the discharge command signal 34 is input from the outside, the kneading controller 25 actuates an actuator (cylinder) 35 that opens the bottom of the kneading tank of the mixer 3,
Fresh concrete MC is allowed to flow out from the bottom of the mixer 3 (opening and closing of the bottom of the mixer 3 by the actuator 35 may be controlled by a timer).

The construction of the ready-mixed concrete conveying device 2 will be described below.

The ready-mixed concrete conveying device 2 has a pair of rails 36 extending substantially horizontally below the ready-mixed concrete manufacturing device 1 and a trolley 3 which moves along the rails 36.
7 and a hopper 38 installed on the carriage 37.

A part of the rail 36 is constructed so as to be located directly below the mixer 3 of the ready-mixed concrete manufacturing apparatus 1 described above, and in a state in which the carriage 37 is moved so as to be located directly below the mixer 3, the mixer 3 moves. When you open the bottom,
The ready-mixed concrete mixed by the mixer 3 is the hopper 3.
It is supposed to be thrown into 8.

The hopper 38 is provided with a load detector (load cell) 39, and it is possible to determine whether or not the fresh concrete MC is mounted on the hopper 38 based on the detection value of the load detector 39. ing.

The ready-mixed concrete carrying device 2 having the above-mentioned structure has a carrying controller 40.

The transport controller 40 moves the carriage 37 to a predetermined position on the basis of the kneading completion signal 33 output from the kneading controller 25 and the transport command signal 41 input from the outside, and at the same time, the hopper. An actuator (cylinder) (not shown) that opens and closes the gate 42 provided at the bottom of 38 is operated.

Hereinafter, one of the ready-mixed concrete supply equipment 68
The configuration of will be described.

Reference numerals 43a to 43c are ready-concrete feeders (concrete placers). Each of the ready-concrete feeders 43a to 43c is supplied with ready-mixed concrete MC from a hopper 38 directly below the rail 36 of the ready-concrete transport device 2. It is installed so that these 3
The ready-mixed concrete feeders 43a to 43c constitute a feeder group 44.

The ready-mixed concrete feeders 43a to 43c
A fluid pressure imparting device (air reservoir) (not shown) is connected to the flow rate adjusting valves 60a to 60c.

In addition, these ready-mixed concrete feeders 43
The inlets (green concrete inlet) from a to 43c are mechanically opened and closed by an actuator (cylinder) not shown.

Furthermore, the ready-mixed concrete feeding machines 43a to 43
c is provided with load detectors (load cells) 67a to 67c, and the remaining amount of the ready-mixed concrete MC inside each of the ready-mixed concrete transmitters 43a to 43c is grasped by the detection values of these load detectors 67a to 67c. Moreover, the delivery speed of the ready-mixed concrete MC can be grasped by the change with time of the detection values of the load detectors 67a to 67c.

Reference numeral 45 denotes an emergency ready concrete delivery machine, and one emergency ready concrete delivery machine 45 is installed for the delivery machine group 44.

A fluid pressure applying device (air reservoir) (not shown) is connected to the emergency ready-mixed concrete feeder 45 via a flow rate adjusting valve 61.

The entrance (fresh concrete input port) of the emergency fresh concrete feeder 45 is mechanically opened and closed by an actuator (cylinder) not shown.

Further, the outlet portion (green concrete outlet) of the emergency fresh concrete delivery machine 45 is connected to the flow rate adjusting valves 51a to 51c communicating with the respective inlet portions of the green concrete delivery machines 43a to 43c, and the bypass pipe 52. Connected through.

Reference numerals 46a to 46c are first flow path switching valves capable of selectively communicating either one of the two outlet ports with one inlet port, and the first flow path switching valve 4
6a to 46c are the ready-mixed concrete feeders 43a to 43a.
One is installed for each of 43c.

The inlet ports of the first flow path switching valves 46a to 46c are connected to the outlets (green concrete outlets) of the fresh concrete feeders 43a to 43c.

One end of the connecting short pipes 47a to 47c is connected to one of the outlet ports of the first flow path switching valves 46a to 46c, and the other of the outlet ports is connected to the emergency fresh concrete delivery machine. Bypass pipe 4 communicating with the inlet of 45
8 is connected, and on-off valves 92a and 92b are provided between the first flow path switching valves 46a and 46b of the bypass pipe 48 and between the first flow path switching valves 46b and 46c. Has been.

These first flow path switching valves 46a to 46c
The flow path switching is performed by the actuator (cylinder) 49a to 4a.
9c is performed mechanically.

Reference numerals 50a to 50c are second flow path switching valves capable of selectively communicating one of the two outlet ports with one of the outlet ports, and the second flow path switching valve 5
0a to 50c are the first flow path switching valves 46a to 46 described above.
One is installed for each of c.

The other ends of the connecting short pipes 47a to 47c are connected to one inlet ports of the second flow path switching valves 50a to 50c.

These second flow path switching valves 50a-50c
The flow path switching is performed by the actuator (cylinder) 59a-5
9c is performed mechanically.

Reference numerals 53a to 53c are pipe cleaning devices, and the outlet portions (injection ports) of the pipe cleaning devices 53a to 53c are the second ones described above.
Is connected to the other inlet port of the flow path switching valves 50a to 50c.

The pipe cleaners 53a to 53c are substantially cylindrical injection bodies 54a to 54c and the injection bodies 54a to 5c.
4c, flexible members 55a, 56a to 55c, 56c such as sponges inserted at a predetermined interval, and a cleaning liquid such as water filled between the flexible members 55a, 56a to 55c, 56c. 57a to 57c.

Flow rate adjusting valves 58a to 58 are provided at the inlets (pressure applying ports) of the respective ejectors 54a to 54c.
Fluid pressure applying device (pump) not shown via c
Are connected.

Reference numerals 62a to 62c are ready-mixed concrete delivery pipes, and the ready-mixed concrete delivery pipes 62a to 62c are connected to respective outlet ports of the second flow path switching valves 50a to 50c.

Reference numerals 63a to 63c denote form moving devices (conveyors). The form moving devices 63a to 63c respectively have load detectors (load cells) 90a to 90c at their lower portions and the fresh concrete delivery pipe 62a. To 62c are installed corresponding to each of them, and a secondary product manufacturing stage 64 is constituted by these three frame moving devices 63a to 63c.

65a to 65c are a plurality of product forms,
The product molds 65a to 65c are the mold mold moving device 63 described above.
It is configured so that it can be conveyed by a-63c.

A casting detector (float switch) 66 is provided on each of the product molds 65a to 65c, and when the ready-mixed concrete MC supplied to the inside of the product molds 65a to 65c reaches a predetermined amount. , The placement detector 6 described above
It is possible to determine whether or not 6 has been actuated and the placement of ready-mixed concrete MC has been completed.

The above is one of the ready-mixed concrete supply equipment 68.
However, the other ready-mixed concrete supply equipment 69 has substantially the same configuration.

The other ready-mixed concrete supply equipment 69
The mold moving devices 63a and 63b of
Product form 70a, 70b different in shape from 5a to 65c
Is placed.

The product molds 70a and 70b also have the placement detector 66 similar to the product molds 65a to 65c described above.

Hereinafter, the data storage unit 71, the manufacturing item setting unit 72, the ready-mixed concrete requesting units 73 and 77, and the kneading calculator 7
4, each configuration of the transport computing unit 75 and the placement computing unit 76 will be described.

The data storage 71 is a product form 65 used for manufacturing various concrete secondary products stored in advance,
70, the amount of fresh concrete placed per unit and the casting speed, and the mixing ratio of raw concrete MC as a raw material,
It is configured to output the pipeline capacity on the downstream side of the second flow path switching valves 50a to 50c in each of the ready-mixed concrete supply equipment 68, 69 as a data signal 78.

The manufacturing item setting device 72 is configured to output a manufacturing item setting signal 79 based on the number of the secondary concrete products to be manufactured and the mold arrangement which are manually input.

The ready-mixed concrete requesting device 73 is provided for one of the ready-mixed concrete supplying equipment 68, and the ready-mixed concrete requesting device 77 is provided for the other ready-mixed concrete supplying equipment 69. The concrete requesters 73 and 77 are configured to output ready-mixed concrete request signals 80 and 81 by manual or automatic operation, respectively.

The kneading calculator 74 is the data storage device 7 described above.
1 output data signal 78 and manufacturing item setting device 72
To the kneading controller 25 of the ready-mixed concrete manufacturing apparatus 1 with the kneading command signal 26 based on the manufacturing item setting signal 79 output from the fresh concrete requesting devices 73 and 77 and the fresh concrete request signals 80 and 81 output from the fresh concrete requesting devices 73 and 77. Output
Further, when the kneading completion signal 33 is input from the kneading controller 25, the discharge command signal 34 is output to the kneading controller 25.

The transport calculator 75 is the data storage device 7 described above.
1 output data signal 78 and manufacturing item setting device 72
The conveyance command signal 41 based on the manufacturing item setting signal 79 output from the above is output to the conveyance controller 40 of the ready-mixed concrete conveying device 2.

The placing calculator 76 is the load detector 6 described above.
Load detection signals 82a to 82 output from 7a to 67c
c and the placement detection signal 83 output from each placement detector 66
And a data signal 78 output from the data memory 71,
Based on the load detection signals 91a to 91c output from the load detectors 90a to 90c, the first flow path switching valves 46a to 4a constituting the green concrete supplying equipments 68 and 69.
Command signals 84a to 84c for activating actuators 49a to 49c of 6c, and second flow path switching valves 50a to 50c
command signals 85a to 85c for operating the actuators 59a to 59c of c and the ready-mixed concrete feeders 43a to 43c.
Command signals 86a to 86c for operating the flow rate adjusting valves 60a to 60c attached to 43c, a command signal 87 to operate the flow rate adjusting valve 61 attached to the emergency fresh concrete delivery machine 45, and the fresh concrete sending machines 43a to 43c. Command signals 88a to 88c for operating the flow rate adjusting valves 51a to 51c attached to the pipes and a command signal 89a for operating the flow rate adjusting valves 58a to 58c attached to the pipe cleaners 53a to 53c.
.About.89c and command signals 93a, 93b for operating the opening / closing valves 92a, 92b are output.

The operation of this embodiment will be described below.

When mass-producing secondary concrete products,
Each form moving device 6 of one of the ready-mixed concrete supply equipment 68
3a to 63c on which the product molds 65a to 65c corresponding to the concrete secondary products to be manufactured are placed respectively,
The ready-mixed concrete delivery pipes 62a to 62c are connected to each product form 65
a to 65c.

The other ready-mixed concrete supply equipment 69
On the respective mold moving devices 63a and 63b, the product molds 70a and 70b that match other secondary concrete products to be manufactured are placed, and the ready-mixed concrete delivery pipes 62a to
62c is connected to each product form 70a, 70b.

Further, each of the first flow path switching valves 46a to 46c.
Is set so that the inlet port and one outlet port communicate with each other (that is, so that the ready-mixed concrete feeders 43a to 43c communicate with the second flow path switching valves 50a to 50c), and Each second flow path switching valve 50a-50c
Is set so that one of the inlet ports and the outlet port are in communication with each other (that is, the first flow path switching valves 46a to 46c are in communication with the ready-mixed concrete delivery pipes 62a to 62c).

Next, one of the ready-mixed concrete supply equipment 6
8, the product forms 65a to 65c are installed, and the other product concrete forms 70a and 70b are installed in the ready-mixed concrete supply equipment 69, and the product forms 65a to 65c and 7 are installed.
0a, 70b are used to input the quantity of the concrete secondary product to be manufactured into the manufacturing item setting device 72.

In this state, for example, when a fresh concrete request signal 80 is output from the fresh concrete requesting device 73 installed in one of the ready-mixed concrete supply equipment 68, the fresh concrete request signal 80 and the above-mentioned manufacturing item setting. The kneading command signal 26 based on the manufacturing item setting signal 79 output from the vessel 72 and the data signal 78 output from the data storage 71 is transmitted from the kneading calculator 74 to the kneading controller 25 of the ready-mixed concrete manufacturing apparatus 1. Is output.

In the ready-mixed concrete manufacturing apparatus 1, a predetermined amount of cement C, sand S, fine aggregate G ₁ , coarse aggregate G ₂ , water W, admixture A are respectively supplied based on the above-mentioned kneading command signal 26.
D is kneaded by the kneading mixer 3, and when the kneading is completed, the kneading controller 25 outputs a kneading completion signal 33 to the kneading calculator 74 and the transfer controller 40 of the ready-mixed concrete transfer device 2. .

In the ready-mixed concrete conveying device 2, the trolley 37 moves below the ready-mixed concrete manufacturing device 1 based on the kneading completion signal 33, and the kneading completion signal 33
In response to this, the kneading calculator 74 outputs the discharge command signal 34 to the kneading controller 25, so that the fresh concrete MC is put into the hopper 38 from the fresh concrete manufacturing apparatus 1.

Further, on the basis of the transport command signal 41 output from the transport computing unit 75, the trolley 37 is used by each of the ready-mixed concrete feeders 43a to 43a of one of the ready-mixed concrete supply facilities 68.
The green concrete MC is sequentially stopped immediately above 3c, and the green concrete MC is supplied from the hopper 38 to the green concrete feeders 43a to 43c.

In this way, the ready-mixed concrete feeder 4
When the fresh concrete MC is supplied to the 3a to 43c, the load detection signals 82a to 82c output from the load detectors 67a to 67c incidental to the fresh concrete sending machines 43a to 43c.
82c changes, and based on the load detection signals 82a to 82c, the pouring calculator 76 causes the ready-mixed concrete feeders 43a to
Command signals 86a to 86c for operating the flow rate adjusting valves 60a to 60c incidental to 43c are load detection signals 82a to 82.
The change with time of c is output so as to have a predetermined value, and the fluid pressure is applied to the ready-concrete delivery machines 43a to 43c so that the pouring speed of the fresh concrete MC becomes a predetermined value.

At this time, the emergency fresh concrete feeder 4
The flow rate adjusting valves 51a to 51c and the flow rate adjusting valve 61 incidental to 5 are in a closed state.

When fluid pressure is applied to the ready-mixed concrete dispensers 43a-43c, the ready-mixed concrete dispensers 43a-43c
43c to the first flow path switching valves 46a to 46c, the second flow path switching valves 50a to 50c, and the ready-mixed concrete delivery pipe 62a.
Through 62c, fresh concrete MC is supplied to each of the product molds 65a to 65c at a predetermined pouring speed. For example, a predetermined amount of fresh concrete MC is supplied to the product mold 65a mounted on the mold moving device 63a. When placed, the placement detector 6
6 works.

When the placing of the ready-mixed concrete MC on the product form 65a is completed as described above, the form moving device 63a is operated to move the finished product form 65a, and at the same time the ready-mixed concrete MC is placed. The next product form 65a to be placed is placed on the form moving device 63a to connect the ready-mixed concrete delivery pipe 62a and the product form 65a, and the inside of the ready-mixed concrete delivery machine 43a and the ready-mixed concrete delivery The remaining amount of the green concrete MC existing in the first flow path switching valve 46a connected to the machine 43a and the connecting short pipe 47a becomes a predetermined amount (amount less than the amount cast into the product form 65a). Up to this point, the above procedure is sequentially repeated.

Further, for the product molds 65b and 65c placed on the other mold moving devices 63b and 63c, the above-mentioned work is carried out at the time when the placing of the product molds 65b and 65c is completed. To do.

Further, when it is necessary to manufacture a concrete secondary product using the product forms 65a to 65c,
Fresh concrete MC is newly kneaded by the fresh concrete manufacturing apparatus 1 based on the above-mentioned production item setting signal 79, and the fresh concrete MC is replenished to the fresh concrete sending machines 43a to 43c.

The other ready-mixed concrete supply equipment 69
When the ready-mixed concrete request signal 81 is output from the ready-mixed concrete requesting device 77 installed in, the ready-mixed concrete MC produced in the ready-mixed concrete manufacturing apparatus 1 is ready-mixed concrete as in the case of the ready-mixed concrete supply facility 68 described above. Fresh concrete MC is supplied to each of the ready-mixed concrete delivery machines 43a and 43b through the carrier device 2, and further, ready-mixed concrete MC is supplied from each of the ready-mixed concrete delivery machines 43a and 43b to the product forms 70a and 70b.

In addition, each of the ready-mixed concrete delivery machines 43a-4
When the production of a predetermined number of concrete secondary products is completed by 3c, each of the ready-mixed concrete feeders 43a to 43
c, first flow path switching valves 46a to 46c, connecting short pipe 47a
-47c and the second flow path switching valves 50a-50c do not contain ready-mixed concrete MC.

This is because the data signal 78 output from the data storage unit 71 includes the pipe line capacity on the downstream side of the second flow path switching valves 50a to 50c, and the total impact on the concrete secondary product is obtained. Each second flow path switching valve 50a to
This is because the fresh concrete MC in an amount including the pipeline capacity on the downstream side of 50c is kneaded in the fresh concrete manufacturing apparatus 1.

In this way, the product molds 65a to 65c are formed.
When the load detection signal 82a output from the load detectors 67a to 67c has a predetermined value due to the completion of the pouring work of the ready-mixed concrete MC to the actuator 59a of the second flow path switching valves 50a to 50c. ~ 59c
Command signals 85a-85c for operating the pipe cleaning device 53
Command signals 89a to 89c for operating the flow rate adjusting valves 58a to 58c incidental to a to 53c are output from the setting calculator 76, and the second flow path switching valves 50a to 50c are the other inlet port and outlet port. Are set to communicate with each other, the outlets of the pipe cleaners 53a to 53c communicate with the ready-mixed concrete delivery pipes 62a to 62c, and the inlets of the pipe cleaners 53a to 53c have a predetermined fluid pressure (hydraulic pressure). ) Is given.

When the fluid pressure is applied, the pipe cleaners 53a ...
Flexible members 55a to 55c, 56a to 5 inside 53c
6c and the cleaning liquids 57a to 57 existing between them
c pushes out the fresh concrete MC existing inside the second flow path switching valves 50a to 50c and the fresh concrete delivery pipes 62a to 62c to the outside.

As described above, in the present embodiment, the interior of the ready-mixed concrete delivery pipes 62a-62c can be easily cleaned after the completion of the placement of the ready-mixed concrete MC on the product forms 65a-65c.

For example, when the fresh concrete delivery pipe 62b is closed when the product form 65b placed on the form moving device 63b is placed, the fresh concrete MC is not delivered and the load detector 67b detects the load. Signal 82b
Will not change.

The blockage occurring inside the product form 65b and the damage of the product form 65b are caused by the load detector 67b.
From the load detection signal 91b from the load detector 90b provided on the form moving device 63b.

In this way, the ready-mixed concrete feeder 43b
When the placement computing unit 76 detects that an obstacle such as a flow path blockage or a mold breakage has occurred between the product flow path and the product mold 65b as described above, the actuator 49b of the first flow path switching valve 46b is activated. A command signal 84b for operating, a command signal 85b for operating the actuator 59b of the second flow path switching valve 50b, a command signal 86b for operating the flow rate adjusting valve 60b incidental to each fresh concrete delivery machine 43b, and an emergency production. Flow rate adjusting valve 61 attached to the concrete sending machine 45
Command signal 87 to activate the concrete supply machine 4
Command signal 88b for operating the flow rate adjusting valve 51b attached to 3b and command signal 93a for opening the on-off valve 92a.
And a command signal 93b for closing the on-off valve 92b is output from the setting computing unit 76.

Therefore, the actuator 49b allows the first
Is set so that its inlet port and the other outlet port communicate with each other, and the outlet of the ready-mixed concrete feeder 43b and the inlet of the emergency ready-mixed concrete feeder 45 are connected via the bypass pipe 48. The raw concrete MC remaining in the ready-mixed concrete delivery machine 43b is sent to the emergency ready-mixed concrete delivery machine 45.

Further, for example, the ready-mixed concrete feeder 4
The outlet portion of the emergency fresh concrete delivery machine 45 and the inlet portion of the fresh concrete delivery machine 43c communicate with each other via the flow rate control valve 51c and the bypass pipe 52 incidental to 3c, and the emergency fresh concrete delivery machine 45 delivers the fresh concrete. Machine 43
The ready-mixed concrete MC is transferred to c, and the ready-concrete MC is placed on the product form 65c by the ready-concrete feeder 43c.

As described above, in this embodiment, even if the flow path of the ready-mixed concrete MC is closed inside the product form 65b supplied with the ready-mixed concrete MC from the ready-mixed concrete feeder 43b, the ready-mixed concrete feeder 43b is used. The ready-mixed concrete MC remaining in the
Since it is possible to transfer the concrete to the concrete 3c, and to continue placing the concrete concrete MC on the product form 65c by the concrete supply machine 43c, the concrete concrete product can be efficiently mass-produced without wasting the concrete concrete MC. can do.

The concrete secondary product manufacturing plant of the present invention is not limited to the above-mentioned embodiment, but the number of the green concrete feeders 43a to 43c may be changed, and the green concrete may be replaced with the green concrete placer. The application of other ready-mixed concrete placing means such as a squeeze pump to the delivery machines 43a to 43c and the emergency ready-mixed concrete delivery machine 45, the product formwork being a stationary type, and the like, within the scope of the present invention. It goes without saying that various changes can be made in.

[0097]

As described above, according to the concrete secondary product manufacturing plant of the present invention, various excellent working effects as described below can be obtained.

(1) In the concrete secondary product manufacturing plant of the present invention, the data signal 78 output from the data storage unit 71, the manufacturing item setting signal 79 output from the manufacturing item setting unit 72, and the ready-mixed concrete requesting unit. 73,7
Based on the ready-mixed concrete request signals 80 and 81 output from 7, the kneading calculator 74 that operates the ready-mixed concrete manufacturing apparatus 1, the transfer calculator 75 that operates the ready-concrete transfer device 2, and the ready-mixed concrete supply equipment 68. , 6
Since it is equipped with a setting calculator 76 for operating the machine 9, each of the ready-mixed concrete feeders 43a to 43c to the product form 6
The ready-mixed concrete MC is automatically placed on the 5a to 65c, 70a, and 70b at a predetermined placement speed, and labor for manufacturing the concrete secondary product can be saved.

(2) In the concrete secondary product manufacturing plant of the present invention, for example, the casting is continued in the transportation pipe or inside the mold from the fresh concrete feeder 43b to the product mold 65b to which the fresh concrete MC is supplied. When the state becomes impossible, the first flow path switching valve 46b
By switching the
The ready-mixed concrete MC remaining in b is passed through the emergency ready-concrete feeder 45 to another ready-concrete feeder 43.
Since it can be transferred to the c
With c, it is possible to continuously perform the placing work of the ready-mixed concrete MC on the product form 65c.
A secondary concrete product can be efficiently mass-produced without wasting C.

(3) In the concrete secondary product manufacturing plant of the present invention, when the manufacturing of the concrete secondary product is completed, the second flow path switching valves 50a to 50c are switched, and the pipe cleaning device 53a. ~ 53c is actuated, the fresh concrete MC existing inside the second flow path switching valves 50a-50c and the ready-mixed concrete delivery pipes 62a-62c is pushed out to the outside, so that the ready-mixed concrete delivery pipe 62a- The interior of 62c can be cleaned.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing an example of a concrete secondary product manufacturing plant of the present invention.

FIG. 2 is a conceptual diagram showing an example of a ready-mixed concrete manufacturing apparatus incidental to an embodiment of the concrete secondary product manufacturing plant of the present invention.

[Explanation of symbols]

1 Fresh Concrete Manufacturing Device 2 Fresh Concrete Conveying Device 26 Kneading Command Signal 33 Kneading Completion Signal 34 Emission Command Signal 41 Conveyance Command Signal 43a-43c Fresh Concrete Sending Machine 44 Sending Machine Group 45 Emergency Fresh Concrete Sending Machine 46a-46c 1st Flow path switching valve 48,52 Bypass pipe 50a-50c Second flow path switching valve 53a-53b Pipe cleaner 62a-62c Fresh concrete delivery pipe 65a-65c, 70a, 70b Product form 66 Placement detector 67a-67c Load detector 68,69 Fresh concrete supply equipment 71 Data storage device 72 Manufacturing item setting device 73,77 Fresh concrete request device 74 Kneading computing device 75 Transfer computing device 76 Placing computing device 78 Data signal 79 Manufacturing item setting signal 80,81 Ready concrete request signal 82a to 82c Load detection signal 83 Placement detection signal C Cement S Sand G ₁ , G ₂ Aggregate W Water AD Admixture MC Fresh concrete

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroyuki Arai 2-6-21 Yaesu, Chuo-ku, Tokyo Ishikawajima Kenzai Kogyo Co., Ltd. (72) Inventor Tadashi Mito 3174 Showa-cho, Kanazawa-ku, Yokohama-shi, Kanagawa Ishikawajima Construction Machinery Co., Ltd. (72) Inventor Shin Shimizu 1 Shin-Nakahara-cho, Isogo-ku, Yokohama-shi, Kanagawa Ishikawajima-Harima Heavy Industries Co., Ltd. Technical Research Institute (72) Inventor Shigeki Murayama 3-chome, Toyosu, Koto-ku, Tokyo No. 15 Ishikawajima Harima Heavy Industries Co., Ltd. Toni Technical Center (72) Inventor Toshiaki Saito 3-15-1 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Co., Ltd. Toji Technical Center (72) Inventor Fushinobu Taro 3-2-16 Toyosu, Koto-ku, Tokyo Ishikawajima Harima Heavy Industries Ltd. Toyosu General Office (72) Inventor Matsuki Sachi Koto-ku, Tokyo Toyosu Chome No. 2 No. 16 Ishikawajima-Harima Heavy Industries Co., Ltd. Toyosu comprehensive within the office

Claims (1)

[Claims] 1. A plurality of ready-mixed concrete feeders (43a)
The transmitter group (4 composed of (43b) and (43c)
4), an emergency ready concrete delivery machine (45) provided for the delivery machine group (44), and an inlet provided for each of the ready concrete delivery machines (43a) (43b) (43c). The port is a ready-mixed concrete feeder (43
a) A first flow path switching valve (46a) (46b) having two outlet ports connected to the outlets of (43b) (43c) and capable of selectively communicating with the inlet port.
(46c) and the ready-mixed concrete feeder (43a)
(43b) (43c) pipe cleaners (53a) (53b) (53c) provided respectively, and the fresh concrete delivery machine (43a) (43b) (43c) provided respectively to one Of the first flow path switching valve (46a) (46b) (46c) is connected to the outlet port thereof and the other inlet port is connected to the pipe cleaning device (5).
3a) (53b) (53c) second flow path switching valves (50a) (50b) (5) having outlet ports connected to the outlets and capable of selectively communicating with the two inlet ports.
0c) and the second flow path switching valve (50a) (50b)
Product form (65a) (65b) (65c) (7) where the exit port of (50c) should be poured with ready-mixed concrete (MC)
0a) (70b) to communicate with the ready-mixed concrete delivery pipes (62a) (62b) (62c) and the other outlet port of the first flow path switching valve (46a) (46b) (46c) The bypass pipe (48) connecting the inlet of the ready-mixed concrete delivery machine (45), the outlet of the emergency ready-mixed concrete delivery machine (45) and the ready-mixed concrete delivery machine (43a) (43b) (43c) A product form (6) which is provided with a plurality of ready-mixed concrete supply equipment (68) (69) consisting of a bypass pipe (52) connecting with an inlet part and used for manufacturing various concrete secondary products stored in advance.
5a), (65b), (65c), (70a), (70b), the amount and placement speed of fresh concrete per unit, the mixing ratio of ready-mixed concrete MC as a raw material, and each ready-mixed concrete supply facility (68) (69). ) In the second flow path switching valve (50a) (50b) (50c) downstream data line capacity (71) to output as a data signal (78) and the data storage device (71) manually input should be manufactured. A manufacturing item setting device (72) that outputs a manufacturing item setting signal (79) based on the quantity and formwork arrangement of the concrete secondary products, and the above-mentioned ready-mixed concrete supply equipment (68) (69), and Based on a ready concrete requester (73) (77) that outputs a ready concrete request signal (80) (81) by manual or automatic operation, and a kneading command signal (26) input from the outside. It can cement (C), sand (S), the aggregate (G ₁₎ (G _2), water (W), outside the kneading completion signal (33) when the kneading is completed with kneading the admixture (AD) And the completion of kneading output from the ready-mixed concrete manufacturing device (1) that can output ready-mixed concrete (MC) when the discharge command signal (34) is input from the outside. Based on the signal (33) and the transfer command signal (41) input from the outside, the ready-mixed concrete (M
C) each of the above-mentioned ready-mixed concrete supply equipment (68) (6
9) the ready-mixed concrete feeder (43a) (43)
b) (43c) ready-concrete transport device (2) to be supplied to each of the above-mentioned ready-concrete supply facilities (68)
Ready-mixed concrete feeder (43a) constituting (69)
(43b) Load detectors (67a) (67) for detecting the weight of the ready-mixed concrete (MC) filled in (43c)
b) (67c) and the product form (65a) (65)
b) Placement detector (66) for determining whether or not a predetermined amount of ready-mixed concrete (MC) has been placed inside (65c) (70a) (70b), the data signal (78) and manufacturing Item setting signal (79) and ready-mixed concrete request signal (8
0) (81) and the kneading command signal (26) is output to the ready-mixed concrete manufacturing apparatus (1) and the kneading completion signal (33) is input from the ready-mixed concrete manufacturing apparatus (1). A kneading calculator (74) for outputting a discharge command signal (34) to the ready-mixed concrete manufacturing apparatus (1),
The data signal (78) and the manufacturing item setting signal (79) described above.
A transport computing unit (75) that outputs a transport command signal (41) based on and to the ready-mixed concrete transport device (2),
Load detection signals (82a) (82b) (82) output from the load detectors (67a) (67b) (67c) described above.
c), the placement detection signal (83) output from each placement detector (66), and the data signal (78) output from the data storage (71), based on each of the ready-mixed concrete supply equipment (68). ) (69) The first flow path switching valve (4
6a) (46b) (46c), second flow path switching valve (50
a) (50b) (50c), each ready-mixed concrete delivery machine (43a) (43b) (43c), emergency ready-mixed concrete delivery machine (45), pipe cleaner (53a) (53b) (5)
A concrete secondary product manufacturing plant, comprising a placing calculator (76) capable of activating each of 3c).