JPS5917929B2 - Vehicles for transporting and mixing concrete materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle for transporting and cross-tracking concrete materials, and more particularly to a vehicle that transports concrete materials to a pouring site and generates a required amount of fresh concrete there.

In a conventional concrete mixer vehicle, a mixer drum is rotatably mounted on the chassis frame, concrete materials such as coarse aggregate, sand, cement, etc. and water are put into the mixer drum, and the concrete is mixed by the rotation of the mixer drum. Some are known in which the material and water are kneaded, and others are known in which a concrete container is mounted on the chassis frame and the concrete material and water put into the container are kneaded by a stirring device. Although it is
In conventional systems of this type, the concrete material placed in the mixer drum or concrete container is mixed with water and kneaded all at once to produce ready-mixed concrete.
In order to completely eliminate the mixing and obtain high-quality ready-mixed concrete, it is necessary to set the mixing time within a predetermined time. It is fine if all mixed fresh concrete is used within a predetermined time, but if the fresh concrete is dispensed in small quantities over a long period of time, it may result in insufficient mixing of the fresh concrete or Over-kneading may occur and the product may become unusable.
Furthermore, after use, the large-capacity mixer drum and concrete container had to be cleaned to ensure that no fresh concrete remained.

Also, recently, fast-setting cement is used as needed.

For example, for road repair, it is necessary to use concrete that hardens quickly and has a certain strength.

Concrete using such fast-setting cement is
If it is transported by a conventional so-called concrete mixer truck that mixes all at once to produce ready-mixed concrete at a location away from the pouring site, it is difficult to transport the ready-mixed concrete during the journey from the ready-mixed concrete plant to the destination, that is, the pouring site. There are some inconvenient problems such as the product becoming stuck.

Therefore, various proposals have recently been made in which the constituent materials of concrete are transported to the concrete placement site and mixed with water to produce the required amount of ready-mixed concrete. has been done.

On the other hand, especially when such fast-setting cement is used, its properties, such as hardening speed and strength, vary slightly depending on the proportion of each concrete material mixed, and therefore the proportion of these concrete materials mixed must be strictly controlled. There is a need.

However, in all of the conventionally proposed methods, operators use their skill to determine the mixing ratio of each concrete material necessary to obtain the desired hardening speed and strength.
The amount of each concrete material is manually controlled and mixed.

In such cases, the mixing proportions of concrete materials, which should be strictly controlled, are not always constant, and the operations for adjusting them to a constant level are extremely troublesome.

At the same time, what has been proposed so far is 1. There were problems in that the concrete was not mixed sufficiently and the equipment became large and heavy.

Therefore, the main purpose of this invention is to provide a concrete that has a simple structure and can be mixed with high precision in a system where concrete materials are transported to a pouring site and mixed and produced in the required amount. The purpose is to provide vehicles for transporting materials and cross-tracking.

Another object of the invention is to provide a vehicle for transporting and cross-tracking concrete materials that is smaller and less expensive.

In summary, this invention calculates the mixing ratio of each concrete material and therefore the amount and time to be fed in a certain period of time by setting the concrete mix number and the required amount of concrete, and This is a vehicle for transporting and mixing concrete materials.

The above objects and other objects and features of the invention will become more apparent from the following detailed description with reference to the drawings.

1 to 5 are configuration diagrams showing an example of a vehicle in which the present invention can be implemented.

Although the present invention achieves great effects when used in vehicles such as those shown in FIGS. It is clear that the present invention is not limited to the examples of vehicles shown in FIGS.

The configuration of the necessary parts will be explained below in relation to the present invention.

A subframe 3 is attached to a main frame 2 of a vehicle 1.

A box-shaped vessel 4, a water tank 5, and a drug tank 8 are further installed on the subframe 3.

The vessel 4 is mounted so that it can be tilted rearward by a lift cylinder 11 (FIG. 5), as shown by the two-dot chain line in FIG. 1, about an axis 10.

The water tank 5 stores water necessary for mixing ready-mixed concrete, and this water is supplied by a metering discharge pump 6 via a conduit 7 to a crosstalk device 53, which will be described later.

Similarly, an admixture is stored in the drug tank 8, and is supplied to the crosstalk device 53 by the metered discharge pump 9.

Furthermore, an outrigger 59 is extendably attached to the rear lower end of the main frame 2 in order to stably support the vessel 4 when it is tilted rearward.

As can be seen from FIG. 4, the intermediate portions of the left and right side walls of the vessel 4 are each inclined inward.

At the center of the vessel 4, a vertical partition wall 14 is provided on its longitudinal axis.

The front end of this vertical partition wall 14 is fixed to the front side wall of the vessel 4, and its rear end is fixed at its upper part to a horizontal partition wall 15 provided across the rear inside the vessel 4, and its lower part is fixed to the front side wall of the vessel 4. It is connected to side walls defining channels 21 and 22.

In this way, the inside of this vessel 4 is divided into three chambers, ie, chamber A, by the vertical partition wall 14 and the horizontal partition wall 15.

It is divided into a rear chamber B and a rear chamber C.

In this embodiment, coarse aggregate (gravel) is stored in the left chamber A, sand is stored in the right chamber B, and cement is stored in the rear chamber C.

Walls 16 and 17 (FIG. 3), which are open at the bottom, are provided above and in front of the loading paths 21 and 22.

The upper portions of these chambers A and B are open, and the upper portion of the rear chamber C is covered by a lid 20 having a manhole 19.

The left ventricle A is further provided with partition walls 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18; ..., the smaller chamber AI, A2. A3. It is divided into...

A space is formed below the partition walls 18.1B, .

And these rooms AI, A2. A3. Coarse aggregate, ie gravel, is stored in each of the...

The reason why the chamber for storing coarse aggregate is further divided into smaller sections is that if there were no partition wall 18, the larger gravel stored here would normally slide down first due to the difference in the angle of repose. As a result, the size of the gravel is not uniform.

However, since the partition wall 18 is provided in this embodiment, the gravel in the chamber A1 is first sent out, and when the amount of gravel in the chamber A1 decreases and the small-sized gravel remaining in the chamber A1 slides down, the gravel in the chamber A1 is sent out. Gravel of average size within is fed through the space below the bulkhead 18.

Since the gravel is supplied sequentially in this manner, there is almost no variation in the size of the gravel and it is possible to supply gravel with a substantially constant density.

Therefore, it will be understood that the greater the number of partition walls 18, the more uniform the density of the supplied gravel can be.

Also, the floorboard 12 of chamber B in the vessel 4 is the same as the floorboard 1 of chamber A.
2, the vessel 4 is tilted by about 5 degrees in the direction of inclination from its base end toward its tip (Fig. 1,
Figure 3).

A friction reducing plate 13 made of, for example, synthetic resin is laid on the inclined floor plate 12.

This is because the angle of repose of sand is larger than the angle of repose of gravel, so sand and gravel will not slide down at the same time on the same slope. To prevent this, the floor plate 12 is sloped and the friction reducing plate 13 is installed. It was established.

Immediately below the rear chamber C, loading paths 21 and 22 (FIG. 2) are provided symmetrically to the left and right along the longitudinal direction of the vessel 4.

The floor plate of the carry-in path 21 is configured to be lower than the floor plate of the carry-in path 22.

These carry-in paths 21 and 22 connect chambers A and B, respectively, to a conveying and mixing device 33, which will be described later.

A metering rotary feeder 26, which constitutes metering and feeding means, is rotatably provided in the carry-in path 21.

This feeder 26 is connected to a hydraulic motor 27 and is forcibly driven to rotate.

In front of the feeder 26 in this carry-in path 21,
A roller 23 is rotatably supported.

The outer periphery of the roller 23 is made of an elastic material such as rubber.

The shaft of this roller 23 is attached to a sliding body 24 provided in a space below the floorboard 12 so as to be slidable in the front-back direction.

The longitudinal position of the sliding body 24 is adjusted by, for example, a known screw 25.

By adjusting this screw 25, the distance between the outer periphery of the roller 23 and the feeder 26 is adjusted.

This is used in order to prevent gravel from getting stuck in the feeder 26 and to achieve accurate metered feeding depending on the size of the gravel.

As shown in FIG. 3 in more detail, inside the loading path 23,
A stirring wheel 28 serving as a stirring device is rotatably supported.

This stirring wheel 28 is connected to a hydraulic motor 31 via a known power transmission means, and is forced to rotate thereby.

In this carry-in path 22, a quantitative rotary feeder 2 similar to the previous feeder 26 is provided behind the stirring wheel 28.
9 is rotatably supported.

This feeder 29 is also connected to a hydraulic motor 31 and is forcibly rotated thereby.

In addition, each blade of the feeder 26 is inclined forward in the advancing direction (that is, has a rake angle) with respect to the radial direction,
Further, the outer edge thereof is also inclined with respect to the direction of the rotation axis, and each blade is formed in a spiral shape.

By doing so, it is possible to equalize the load applied to the blades of the feeder 26 by the coarse aggregate, and also to eliminate the clogging phenomenon caused by the coarse aggregate.

An elastic body 30 made of, for example, a steel plate is attached near the rotary feeder 29, with its tip facing between the blades of the feeder 29.

This is because when the feeder 29 rotates, the tip of the elastic body 30 is flicked by its blades, and the sand in the valleys between the blades is struck, so that accurate metering and feeding can be performed without sand sticking to the valleys. It is something.

In this way, when the hydraulic motors 27 and 31 are rotated, and the feeders 26 and 29 and the stirring wheel 28 are rotated accordingly, the coarse aggregate stored in the chamber A is passed through the carry-in path 21 and into the chamber B. After the stored sand is stirred by the stirring wheel 28, it passes through the carry-in path 22 and is sent in fixed amounts to transport chambers 50 and 51 of a transport mixer 33, which will be described later.

Furthermore, transfer chambers 50 and 51 are formed in the lower part of the rear chamber C.

Both transfer chambers 50 and 51 are configured in a cylindrical shape.

The transfer chamber 50 is in contact with the floor plate of the carry-in passage 21 and extends from the left end of the carry-in passage 21 to approximately the center of the vessel 4 .

The front thereof is cut out and communicates with the rear opening of the carry-in path 21.

The right end of the transfer chamber 50 is opened to form a transfer port.

A screw conveyor 48 is provided surrounded by this transfer chamber 50.

This screw conveyor 48 is connected to a hydraulic motor 46 and is forcibly driven to rotate.

Further, the transfer chamber 51 is formed in contact with the floor plate of the carry-in path 22 and slightly in front of the transfer chamber 50 .

The transfer chamber 51 extends from the right end of the vessel 4 to approximately halfway between the left and right ends of the transfer chamber 50.

In the width of the transfer chamber 51 that is in contact with the carry-in path 22, the front thereof is cut out and communicated with the rear opening of the carry-in path 22.

The left end of the transfer chamber 51 is open.

A screw conveyor 49 is provided surrounded by the transfer chamber 51.

This screw conveyor 49 is connected to a hydraulic motor 47 and is forcibly driven to rotate.

Therefore, when the hydraulic motors 46 and 47 rotate,
The coarse aggregate (gravel) that has passed through the carry-in path 21 and the sand that has passed through the carry-in path 22 are transferred to screw conveyors 48 and 49, respectively.
The materials are conveyed in the radial direction by the conveyor belt, and are discharged from the respective conveyance ports or conveyance ends.

Further, in the lower part of this rear chamber C, transport vehicles 34, 36 and stirring wheels 35 as transport stirring devices are rotatably provided by a common shaft.

A common shaft of the transport vehicles 34, 36 and the stirring wheel 35 is connected to a hydraulic motor 45, and is forced to rotate.

Furthermore, a quantitative feeding device, that is, a quantitative rotary feeder 37 is rotatably provided below and rearward of the stirring wheel 35.

This quantitative rotary feeder 37 is connected to a hydraulic motor 45 via a one-way clutch (not shown) by known means (not shown), and is forced to rotate thereby.

The metering rotary feeder 37 is provided at the rear of the chamber C in a discharge section formed by its wall, and at the open end of this discharge section,
A flexible chute 32 (FIGS. 1 and 3) is connected and extended.

When this hydraulic motor 45 is rotated, the rear chamber C
The cement stored inside is transferred to the left and right transport vehicles 34 and 3.
6 to the center of the chamber C, and there, while being stirred by an agitation wheel 35, a fixed amount is sent by a quantitative rotary feeder 37 to a kneading device 53, which will be described later, via a discharge port and therefore a flexible chute 32.

It should be noted that the feeder 37 also has, like the previous feeder 29,
In order to prevent cement from sticking to the valleys of the blades, an elastic body made of, for example, a steel plate may be attached.

Next, the crosstalk device 5 disposed behind the conveyance mixing device 33
3 will be explained.

A bracket 60 is provided at the rear of the vessel 4, and a shaft 58 is provided on this bracket 60, whereby the kneading container 54 is pivotally supported so as to be able to rise and fall freely.

This shaft 58 is positioned forward and upward relative to the shaft 10 when the vessel 4 is horizontal (the state shown by the solid line in FIG. 1).

More precisely, when the vessel 4 is tilted (the state shown by the solid line in FIG. 5), the shaft 58 is set so that it is almost at the top of its rotation.

A wire locking piece 39 is provided on the container 54 so as to protrude from the side thereof.

One end of the wire 44 is locked to this locking piece 39 .

This wire 44 is connected to the hydraulic pressure provided on the same axis as the shaft 10 via a free rotation pulley 42 rotatably supported by a shaft 41 provided on a bracket 40 provided on the rear wall of the vessel 4. It is wound so as to reach the drive winch 43.

By operating the winch 43 in this way,
The wire 44 is pulled, so that the crosstalk device 53 can be rotated, for example, as indicated by the dash-dot line in FIG.

A conveyance path is formed inside the kneading container 54 in the front-rear direction.

A raw material inlet 55 is formed at the base end of this container 54, and an outlet for kneaded and produced ready-mixed concrete is formed at the other end.

In the container 54, a shaft for cross-talking is provided in the width direction thereof, and these shafts or cross-talking means are driven by hydraulic motors 56 and 57 and the like.

The operation of the vehicle 1 configured as described above when mixing and producing ready-mixed concrete at a pouring site such as a construction site will be briefly described.

After the vehicle 1 has stopped, the outriggers 59 are first extended to the state shown in FIG.

Next, the lift cylinder 11 is extended to rotate or tilt the vessel 4 about the shaft 10 to the position shown by the solid line in FIG.

In this case, when the winch 43 is operated and the wire 44 is let out, the kneading device 53 is tilted around the shaft 58 due to its own weight, and is tilted slightly downward toward the rear as shown by the solid line in FIG.

Due to the above-mentioned tilting of the vessel 4, the raw materials and sand stored in the chambers A and B move toward the rear of the vessel 4 due to their own weight, and are moved to the left and right carry-in paths 21 and 22.
leading to.

Here, the feeder 2 is driven by the hydraulic motor 27.
6 is also driven by a hydraulic motor 31 and a stirring wheel 28
Assuming that the sand and feeder 29 are rotated in the directions shown by the arrows in FIG. Sent within 51.

In addition, the gravel is delivered in fixed quantities to the carry-in path 21 by the feeder 26.
It is sent into the transfer chamber 50 from the rear end.

The raw materials and sand carried into the transfer chambers 50 and 51 from the carry-in paths 21 and 22 in this way are transported to a screw conveyor 48 driven by a hydraulic motor 46 and a screw conveyor 49 driven by a hydraulic motor 47.
, they are each gradually moved toward the center (the center in the width direction of the vessel 4).

By the way, when the vessel 4 is tilted, as can be seen from FIG.
8, the sand conveyed by this conveyor 49 is conveyed by the conveyor 48 from the conveying end of the conveying chamber and falls onto the rough substrate material, so that this raw aggregate and sand are mixed. At the same time, they are mixed and further transported by the conveyor 48.

Then, it falls into the entrance 55 of the container 54 of the kneading device 53.

Meanwhile, at the same time, the hydraulic motor 45 is rotated and driven by the hydraulic motor 45, the transport cars 34 and 36 and the stirring wheel 35 are rotated.
and the rotary feeder 37 are rotationally driven in the direction shown by the arrow in FIG.

Therefore, the cement at the inner bottom of this rear chamber C is
4 and 36, stirred by the stirring wheel 35, fed out in fixed quantities by the feeder 37, and dropped into the front entrance 55 of the kneading device 53 via the flexible chute 32.

If the transport vehicles 34 and 36 and the stirring wheel 35 become clogged, simply turn the motor 45 in reverse to loosen them.
At this time, the feeder 37 is connected to a one-way clutch (not shown).
It does not rotate due to the operation of.

In this way, a mixture of raw aggregate and sand and cement for mixed production of fresh concrete are carried into or fed into the container 54 of the kneading device 53.

At the same time, the pumps 6 and 9 are driven, and the water tank 5
0 through a conduit 7, and medicine from a medicine tank 8 is fed into the container 54 of this kneading device 53, respectively.

Then, the hydraulic motors 56 and 57 are driven to mix the above-mentioned raw aggregate, sand, cement, water, and chemicals in the container 54 of the kneading device 53 to produce ready-mixed concrete.

The produced fresh concrete can be discharged from the rear end of the container 54.

In this embodiment, the amount of discharge of the raw aggregate, sand and cement can be arbitrarily adjusted by controlling the rotational speeds of the hydraulic motors 27, 31 and 45.

Furthermore, by controlling the pumps 6 and 9, the amount of water and medicine can be adjusted as desired.

The configuration and operation of an example of a vehicle in which the present invention can be implemented have been described above.

An embodiment of the present invention implemented in such a vehicle will be described below.

FIG. 6 is an illustrative view showing an operation panel provided, for example, in the driver's seat of the vehicle 1.

This operation panel has 1 numeric keypad for entering numerical values.
01 and a digital display 102 for displaying data input using the numeric keypad 101 or the like or data calculated as described below.

Further, this operation panel 100 includes a setting switch 103 that indicates that the numerical value or data input from the numeric keypad 101 is the required amount of ready-mixed concrete, and a setting switch 103 that indicates that the numerical value or data input from the numeric keypad 101 is a mixture number. 104, a setting switch 105 indicating that the data input from the numeric keypad 101 is the amount of admixture mixed in, a setting switch 106 indicating that the data input from the numeric keypad 101 is the amount of admixture mixed in, and a setting switch 106 indicating that the data input from the numeric keypad 101 is the amount of water content of sand. A setting switch 107 indicating the rate is provided.

Furthermore, the operation panel 100 includes a data input switch 108 for instructing to store data set by the numeric keypad 101 and the above-mentioned setting switches 103 to 107 in a storage device, which will be described later, and a control device, a storage device, or a controlled device, which will be described later. A reset switch 109 for resetting the device and the like to an initial state, and a start switch 110 for starting crosstalk in the crosstalk device 53 are provided.

FIG. 7 is a schematic block diagram showing one embodiment of the present invention.

In this embodiment, a central processing unit CPU200 is provided for calculation or control.

Along with this, there is also a read-only memory ROM 300 for setting the operation program of the CPU 200 or storing the recipe table (Fig. 8) in advance;
A random access memory RAM 400 is provided for storing data calculated by U 200.

These CPU200, ROM300, RAM400
is connected to the data bus 500 together with the operation panel 100.

The data bus 500 is further connected to a drive circuit for controlling the discharge amount of the base material, sand, cement, water, and admixture.

The drive circuit 600a is for controlling, for example, the amount of feed of the material, that is, the amount of discharge per certain period of time.

Further, the drive circuits 600b and 600c each have
For example, it is for controlling the discharge amount of sand and cement.

Here, only the circuit 600a is typically shown in more detail.

Other circuits 600b and 600c also have a similar configuration.

The circuit 600a is provided with a register 601a for storing data stored in the RAM 400, and this register 601a further includes a servo amplifier 6.
02a are connected.

Then, the servo valve 6 is controlled by the servo amplifier 602a.
Controls the opening degree of 03a.

The hydraulic motor 27 rotates according to the controlled valve opening, and the quantitative rotary feeder 26 is driven accordingly.

Similarly, in the circuit 600b, the hydraulic motor 31 is driven,
Hydraulic motor 45 is driven in circuit 600c.

Further, the circuit 700a is a drive circuit for controlling the amount of water to be discharged, and the circuit 700b is a drive circuit for controlling the amount of medicine, that is, the admixture to be discharged.

These circuits 700a and 700b are similar to the previous circuit 600.
It is configured almost the same as a and drives pumps 6 and 9.

Then, in order to drive the kneading device 53, the circuit 800
Drives hydraulic motors 56, 57, etc.

This circuit 800 includes a flip-flop circuit 8
01 is connected instead of the register.

Circuit 900 also drives hydraulic motors 46, 47 to drive screw conveyors 48,49.

And this circuit 900 also has a flip-flop circuit 901.
is connected.

Figure 8 shows each combination number/f set in advance in the RAM 300.
61, A2, A3, . . . The mixing ratio of each of the materials water, cement, sand, and gravel required to make 1 meter of ready-mixed concrete is memorized.

Along with this, a system program for operating the CPU 200 is incorporated as described later.

FIG. 9 shows that the command value graph for each material, water, and admixture determined by the CPU 200 is stored in the ROM 300.

In the above configuration, the operation or operation thereof will be explained below.

First, data is input using an operation panel 100 provided on a driver's seat or the like.

That is, first, the mix number setting switch 104 is pressed, and then, using the numeric keypad 101, the numerical value of the mix number corresponding to the specifications of the desired concrete is input.

Then, operate the input capo button 108 and press the numeric keypad 10.
The numerical value input in step 1, that is, the combination number, is stored in the RAM 400.

At the same time, operate the concrete amount setting switch 103, numeric keypad 101, and input capo button 108,
The required amount of fresh concrete (Vm') is written in the RAM 400.

At the same time, by operating the relevant keys or switches, you can check the moisture content of sand (78w% based on the weight of sand), the amount of admixture mixed in (relative to the undiluted solution; MB times), the amount of admixture mixed in (
(MA%) relative to the amount of fresh concrete are input and written into the RAM 400.

Data is input in this way. Next, CPU20
0 calculates the discharge amount of gravel, sand, cement, water, and admixture based on each input data or mixture number.

This discharge amount is determined based on the data previously input from the operation panel 100 and the concrete mixture ratio table preset in the ROM 300 as shown in FIG.

This discharge amount is stored in the RAM 400, and these discharge amounts are obtained by determining how much of each concrete material, water, etc. is required for the required amount of fresh concrete.

The amount of cement to make concrete 1?7+3 is stored as C (K/m), and the amount of sand is S (kv
771″), and the amount of raw aggregate (gravel) is B
(Kim5 is stored, the amount of water is stored as W (Kg/m"), and the amount of admixture is stored as M (kg/m").

After each total discharge amount is stored in the RAM 400 in this manner, the CPU 200 subsequently determines the discharge amount of each material, water, etc. per a certain period of time, for example, per minute.

If the discharge amount of cement per unit time is Co, then this cement discharge amount Co is as follows.

However, Vm indicates how much material can be kneaded per minute with the capacity (fixed value) of the kneading device 53.

Therefore, this is uniquely determined by the vehicle specifications.

The reason why the capacity Vm of the kneading device 53 is used in this way is that it is necessary to control the material supplied to this kneading device so that it does not exceed this capacity.

Next, the amount of sand discharged per unit time, that is, per minute So
It is calculated by .

Then, the discharge amount Bo of the raw aggregate, that is, gravel, per unit time, that is, per minute, is calculated as follows.

Further, the ejection amount Mo of the drug, that is, the admixture per unit time, that is, per minute, is calculated as follows.

Furthermore, the amount of water discharged per unit time, that is, per minute W
o is Wo = Wn - W s - Mo (m'/min
) ... can be found in (5).

Here, Wn indicates the actual water volume, which is is required.

When determining the amount of water discharged per unit time, the amount of water contained in the sand must be taken into consideration.

For this purpose, the water content Ws of the sand is determined here.

This water content Ws is is required.

Furthermore, the admixture must also be considered as water and must be taken into consideration.

Therefore, the final amount of water discharged per unit time Wo
must be given by equation (5) above.

In this way, data on the amount of discharge per minute of each material, water, etc. is obtained.

This may be stored in other areas of RAM 400.

After that, the CPU 200 needs to further calculate the supply time of these materials, water, etc.

This is because the discharge amount data is per unit time, and by controlling the operating time, that is, the discharge time, the required amount of fresh concrete (2) is controlled.

Then, the operating time T of the hydraulic motors 27, 31 and 45 and the pumps 6 and 9 is determined by:

The CPU 200 controls the hydraulic motors 27 and 31 based on the discharge amount per unit time of each material, etc. determined in this way.
, 45 and the pump 6.9 must be determined.

Figure 10 shows the command value C for the cement discharge amount Co.
11 is a graph showing the relationship between the command value Sc and the sand discharge amount So per unit time, and FIG. 12 is a graph showing the command value Sc against the gravel discharge amount Bo per unit time. 13 is a graph showing the relationship between the command value Wc and the discharge amount Wo of water per unit time. FIG. 14 is a graph showing the command value Wc against the discharge amount Mo of the admixture per unit time. It is a graph showing the relationship between values Mc.

Such a graph is obtained by actual measurement, converted into coordinates, and stored in the ROM 300 as shown in FIG. 9.

Then, the CPU 200 performs calculations based on these graphs 10 to 14 stored in the form of coordinates in the ROM 300, and obtains each command value CcSc, Bc,
Find Wc and Mc.

These command values are then entered into the respective registers of the drive circuit shown in FIG. 7 above.

On the other hand, the previously determined operating time T is stored in the RAM 400.

Furthermore, the time TM during which the crosstalk device 53 should continue to be operated after this time T is also stored.

In this way, each drive circuit 600a shown in FIG.

Respective command values Bc, Sc, Cc, Wc, and Mc are loaded into 600b, 600c, 700a, and 700b1,
Preparation is complete.

At this time, it is assumed that the crosstalk device 53 is completely empty, but is filled with cement and aggregate up to the respective supply outlets (including the screw conveyors 4B and 49).

Then, while the vehicle is in the state shown in FIG. 5, the operator manually operates the start switch 110.

Then, each circuit 600a to 700b performs a well-known servo operation, and the corresponding hydraulic motor 27,
31,45. The pump 6.9 is driven according to the command value.

Therefore, these hydraulic motors or pumps are driven at rotational speeds or discharge amounts according to respective command values.

Of course, at the same time as this start, the circuit 800 has a CP
In response to the signal from U200, the flip-flop circuit 801 outputs a signal, the hydraulic motors 56 and 57 are started, and the crosstalk device 53 is also activated.

Circuit 900 is also similarly activated, and hydraulic motors 46,4
7. Therefore, the screw conveyor 48°49 also operates.

Therefore, the feeders 26, 29, 37 and the pump 6.9 rotate with the previously set rotations to this operating kneading device 53, and aggregates, cement, water and chemicals are fed in preset amounts. Supplied.

And this feeder 26, 29, 37 and pump 6.
9 Furthermore, the rotation of the screw conveyors 48 and 49 is controlled by the circuits 600a, eoob, 600c, and 700a by a signal from the CPU 200 when the previously set time T has elapsed.
.

It stops when 700b and 900 become inactive.

In this way, the required amount V (m') of ready-mixed concrete having the mix number inputted on the operation panel 100 is obtained, and it is discharged from the outlet of the container 54 of the kneading device 53.

Further, the hydraulic motors 56 and 57 of the kneading device 53 are activated by a signal from the CPU 200 when the time TM has elapsed.
It stops when circuit 800 becomes inactive.

That is, the crosstalk device 53 continues to operate for a period of time TM after the concrete material has stopped being poured, and performs sufficient crosstalk.

The ready-mixed concrete mixed in the required amount in this way is discharged from the mixing container 54, and after being discharged, the lift cylinder 11 is contracted to return the vessel 4 onto the subframe 3 of the vehicle 1, and the hydraulically driven winch 43 By driving the wire 44 and storing the wire 44, the crosstalk container 54 is rotated upward and stored.

In this way, the conveyance of a series of concrete materials to cross-tracking is accomplished on this vehicle 1.

As described above, according to the present invention, the operator only needs to input the required amount of ready-mixed concrete, the mix number of the ready-mixed concrete, etc., and is freed from the complicated operations required in the past.

At the same time, since the discharge amount is automatically controlled according to the settings of such data, it is possible to mix at a very stable and accurate mixing ratio, especially when using harsh conditions such as when using fast-setting cement. Even when a specific mixing ratio is required, ready-mixed concrete of stable quality without variations in each material can be produced.

In order to control such automatic discharge or kneading, there is no need to particularly increase the size of the device, and the device can be configured to be small and inexpensive.

It should be noted that it would also be possible to stop the metering of the raw pipe material and use only sand as the aggregate to generate cross-circuit mortar.

Furthermore, since all devices requiring maintenance such as stirring, metering, conveying and mixing, and kneading can be installed at the rear of the vessel, their maintenance will be extremely easy.

[Brief explanation of drawings]

1 to 5 are structural diagrams showing an example of a vehicle in which the present invention can be implemented. FIG. 6 is an illustrative view showing an operation panel used in one embodiment of the present invention. FIG. 7 is a schematic block diagram showing one embodiment of the present invention. FIG. 8 shows a recipe number table stored in the ROM 300, and FIG. 9 shows a graph of command values for each material etc. is stored in the ROM 300. 10 to 14 are graphs showing the relationship between the command value and the discharge amount per unit time, respectively.
Figure is cement, Figure 11 is sand, Figure 12 is gravel, Figure 13 is
The figure shows water, and FIG. 14 shows an admixture. In the figure, 1 is a vehicle, 4 is a vessel, 5 is a water tank,
6 is a pump, 8 is a drug tank, 9 is a pump, 26, 29
．． 37 is a quantitative rotary feeder, 27° 31.45, 46,
47, 56, and 57 are hydraulic motors, and 53 is a kneading device.

Claims (1)

[Scope of Claims] 1. A vessel mounted on a frame of a vehicle, a plurality of material storage sections partitioned within the vessel and for storing concrete materials, and a material outlet of each material storage section individually. a water storage section mounted on the frame of the vehicle for storing water; a water pump for quantitatively feeding water from the water storage section; and the vessel. a concrete mixing means mounted at the rear of the vehicle and receiving concrete materials from each of the metering and feeding means and water from the water pump, further comprising means for setting a desired concrete mixture number; means for setting the amount of fresh concrete; means for calculating the amount of each concrete material and water fed per fixed time and the total time based on the set mix number and amount of fresh concrete; A vehicle for transporting and cross-tracking concrete materials, comprising means for controlling each of the metering and feeding means and the water pump based on the calculated feeding amount per fixed time and the total time. 2. The plurality of concrete materials include at least sand, further comprising means for setting a moisture content in the sand, and the calculating means subtracts the moisture content in the sand to determine the rate of water pump operation for a certain period of time. A vehicle for transporting and kneading concrete materials according to claim 1, wherein the conveyance amount is calculated. 3. The vehicle further includes a drug storage section that is mounted on the frame of the vehicle and stores a drug, and a drug pump that quantitatively supplies the drug from the drug storage section to the concrete mixing means, 3. A vehicle for transporting and cross-tracking concrete materials according to claim 1 or 2, wherein the means also calculates the amount of the chemical to be fed per fixed time. 4. The vehicle for transporting and kneading concrete materials according to claim 3, wherein the calculating means calculates the amount of water pump to be fed for a certain period of time by subtracting the discharge amount of the chemical agent. 5. The vehicle for transporting concrete materials and cross-tracking according to any one of claims 1 to 4, further comprising data display means for displaying at least the setting data by the setting means.