JP2742838B2 - Asphalt mix silo dispensing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for dispensing asphalt mixture from a silo for temporarily storing asphalt mixture.

[0002]

2. Description of the Related Art In some cases, an asphalt mix production plant is provided with a mix silo for temporarily storing manufactured asphalt mix (hereinafter referred to as "mixture"). When the mix is shipped from the silo, the operator in the operation room instructs the driver of the cart to stop at the payout position of the silo, and as the loading of the mix proceeds, the operator moves the cart. And loading the material carefully, taking care not to spill the mixture from the carrier.

[0003]

However, the operator must visually monitor the dispensing condition of the mixture every time the product is shipped from the silo, and give an appropriate instruction to the driver. Also had to wait in the car for loading and unloading.

SUMMARY OF THE INVENTION In view of the above, the present invention provides a method for dispensing a mixture from an asphalt mixture silo that can efficiently load the mixture from a mixture silo to a transport vehicle and load the mixture efficiently. With the goal.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a method of loading a mixture hopper, which is disposed below a mixture silo for storing asphalt mixture, along a moving direction of a transport vehicle. In addition to the movable structure, a position detection sensor for appropriately detecting the position of the transport vehicle that has entered the mixed material loading area below the mixed material silo is provided, and the transportation stops at the mixed material loading area when the mixed material is dispensed. Operate the position detection sensor for the car to detect the stop position of the transport vehicle and the size of the loading platform, and optimal payout based on the payout pattern stored in advance based on the position, size and loading amount of the loading platform. The pattern is determined, and the movement of the hopper for loading the mixture is controlled based on the payout pattern, so that the mixture is automatically and sequentially paid out to the open space of the carrier.

[0006]

According to the present invention, when the transport vehicle enters and stops at the material loading area below the material silo, a position detection sensor appropriately disposed near the material loading area, for example, an ultrasonic And measures the distance relationship between each sensor and the carrier to detect the stop position of the carrier and the size of the carrier. In addition, how to pay out the mixture to the empty space of the carrier based on the position, size, and the loading amount reserved for shipment of the carrier in advance, for example, the mixture is separated by a predetermined distance from the rear end of the carrier. The payout is started from there, and when a predetermined amount is paid out, a payout pattern such as shifting the payout position by a predetermined pitch toward the driver's cab direction is stored in the control unit. Then, the optimum dispensing pattern is determined based on the measured position and size of the truck carrier and the loading amount reserved for shipment, and the dispensing position of the composite material loading hopper is appropriately moved based on the dispensing pattern. In the meantime, the mixture is automatically paid out to the empty space on the loading platform.

[0007]

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

Reference numeral 1 denotes a known material silo for storing various materials, and a payout gate 2 for discharging the material is provided below the silo. Measuring tank 3 below silo 1
A predetermined amount of the mixture discharged from the mixture silo 1 is measured by the load cell 4, the discharge gate 5 is opened, and the mixture is discharged to the lower mixture hopper 6.

The material loading hopper 6 is mounted on a traveling rail 7 provided below the material silo 1 via wheels 8 so as to be freely movable. The traveling rail 7 is a transport vehicle 9 for transporting the mixture.
The hopper 6 for loading the mixture moves forward and backward on the traveling rail 7 by forward and reverse rotation of a drive motor (not shown), and is discharged from the silo 1 for the mixture. The mixed material can be loaded at an arbitrary position on the carrier of the transport vehicle 9.

[0010] The mixture loading area 1 below the mixture silo 1
1, a position detection sensor 10 for detecting the position of the stopped transport vehicle 9 is disposed. This position detection sensor 10
Adopts a sensor capable of detecting the stop position of the transport vehicle 9 that has come to pick up the mixture and the size of the carrier (the size of the transport vehicle, that is, the type of vehicle), etc., and is disposed at an appropriate position that can be detected. Is done. The position detection sensor 10 employs, for example, a type of sensor that detects the distance from the sensor to the target by measuring the reflection time of infrared rays or ultrasonic waves radiated to the target, and is located at a position as shown in FIG. Detection sensors 10a, 1
0b are respectively arranged. The sensor 10a irradiates an irradiation wave to the back A of the cab from the rear part of the transport vehicle 9 and the sensor 10b irradiates the irradiation wave to the back B of the rear part of the loading platform 12. The position and size of the carrier can be determined.

The position detection sensors 10a, 10b are connected to a loading controller 13 for controlling the loading hopper 6, and the sensors 10a, 10b
Of the loading platform 12 and loading platform 1 based on the reflection time taken from
2 is calculated in the longitudinal direction. Also, the loading controller 13
The storage unit stores in advance the material dispensing pattern from the loading hopper 6 based on the position, size, and loading amount of the loading platform 12, and based on the actually measured data and the loading amount reserved for shipment, Determine the payout pattern. Then, while appropriately moving the loading hopper 6 to the payout position based on the payout pattern,
The mixture is automatically paid out to the empty space.

The dispensing pattern may be a program of a conventional loading operation procedure performed by an operator instructing a driver. For example, when a large amount of mixed material is loaded on a large truck, the unloading pattern may be changed. Discharging is started at a predetermined distance from the rear end of the loading platform 12, and the number of batches according to the loading amount is dispensed. When the mixture is loaded in a mountain shape, the dispensing position is directed to the cab direction at a predetermined pitch. It is shifted one by one and the pile of the mixture is formed at a constant pitch along the longitudinal direction of the loading platform 12 and loaded. Alternatively, if the loading amount is small with a small transport vehicle, it is paid out to the center of the loading platform 12. An appropriate number of payout patterns are set so that the method of loading and forming the pile of the mixture only at the center of the loading platform or the optimal loading method can be selected according to the size and loading amount of the carrier. . When the piles of the composite material are loaded while forming them at a constant pitch, a procedure for calculating the amount of the composite material to be paid out to one location from the size and the loaded amount of the bed 12 and the moving pitch amount is programmed.

[0013] However, when loading a mixture into a transport vehicle,
The driver enters the transport material loading area 11 below the material silo 1 and stops the transport vehicle 9 at an appropriate position. During this time, the loading controller 13 sequentially takes in the data of the reflection time of the irradiation wave to the carrier 9 detected by the position detection sensors 10a and 10b. Then, the loading controller 13 calculates the data of the reflection time of the sensor 10b to grasp the position of the rear end of the carrier 12 and, based on the distance of the rear end of the carrier 12 of the carrier 9, moves the carrier 9 to the loading area 11 of the composite material. Confirm that it has entered and stopped.

When the stop of the transport vehicle 9 is confirmed, the loading controller 13 calculates the size of the carrier 12 in the longitudinal direction from the difference between the data of the reflection times of the sensors 10a and 10b to obtain the size of the carrier 12. An optimum payout pattern is determined based on the position of the carrier 12, the size of the carrier 12, and the loading amount reserved for shipment. Then, based on the determined payout pattern, the mixture is loaded on the transport vehicle 9 while the movement of the mixture loading hopper 6 is controlled. For example, when loading a large amount of mixture into a large-sized transport vehicle as described above, first, the amount of mixture to be paid out to one location and the amount of payout pitch are obtained from the size and loading amount of the loading platform. Then, the dispensing of the mixture is started at a predetermined distance from the rear end of the loading platform 12, and
When a predetermined amount is paid out and the mixture is loaded in a mountain shape, the payout position is shifted by a predetermined pitch toward the cab direction,
The piles of the mixture are loaded at a constant pitch along the longitudinal direction of the carrier. Thus, the mixture can be automatically loaded on the loading platform 12 without moving the transport vehicle 9.

FIG. 2 shows a composite material loading hopper 14 with a measuring device attached to the lower part of the composite material silo 1 so as to be able to travel along the traveling rail 7, and such a structure may be employed. . In FIG. 2, the same components as those shown in FIG. 1 are denoted by the same reference numerals.

In the embodiment, a sensor for measuring the distance from the sensor is used as the position detecting sensor 10. However, a large number of photoelectric sensors are arranged to detect the position of the transport vehicle 9 and the size of the carrier, and to detect the size of the carrier. It is also possible to determine the size of the carrier by specifying the vehicle type by a method of reading the vehicle number by a sensor or the like by previously storing the vehicle number and the vehicle type of the transporting vehicle entering and exiting in the loading controller 13. good. Further, the vehicle number or the vehicle type may be registered in the main operation panel at the stage of shipping reservation.

Furthermore, in the embodiment, the material loading hopper 6 is movable only in the direction of entry of the transport vehicle 9, but is movable in the XY directions as in the overhead crane system, If the position and width are also detected so that they can be loaded at any position on the loading platform, it is convenient without worrying about the stop position of the carrier, within the scope not departing from the gist of the present invention. Of course, various changes can be made.

[0018]

As described above, according to the present invention, the position detection sensor 10 is operated for the transport vehicle 9 which stops at the mixture loading area 11 at the time of dispensing the composite material, and the stop position of the transport vehicle and the size of the carrier. Detecting the position, determining the optimum dispensing pattern based on the position, size, and loading amount of the loading platform, and controlling the movement of the hopper 6 for loading the mixture based on the pattern, thereby loading the mixture. Mixtures can be automatically and sequentially paid out to the open space of the loading platform 12, so that the burden on the operator and the driver can be reduced, and the loading operation can be performed efficiently.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an embodiment employing a method for dispensing a mixture according to the present invention.

FIG. 2 is a schematic view showing another embodiment of the above.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Silo for material mixture 6 ... Hopper for loading material mixture 9 ... Carriage vehicle 10 ... Position detection sensor 11 ... Area for loading material mixture 12 ... Carrier 13 ... Loading controller

Claims (1)

(57) [Claims] A hopper for loading a mixture, which is disposed below a material silo for storing asphalt mixture, is configured to be movable in the direction of entry of the carrier, and a material is loaded below the material silo. A position detection sensor for detecting the position of the transport vehicle that has entered the area is appropriately disposed, and the position detection sensor is operated for the transport vehicle that stops at the mixture loading area at the time of dispensing the mixture to stop the transport vehicle. And the size of the loading platform, and determines the optimal delivery pattern based on the delivery pattern stored in advance based on the position, size, and loading amount of the loading platform, and based on the delivery pattern, the hopper for loading the composite material. The asphalt mixture silo, wherein the mixture is automatically and sequentially dispensed to the open space of the cargo bed by controlling the movement of the mixture.