JP2589398Y2 - Material input device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a material input device, which automatically measures only a predetermined amount of a material such as a mixer while measuring a material such as a special additive or a recycled material (recycled material) in an asphalt plant or the like. And a device for charging the material into the material charging section.

[0002]

2. Description of the Related Art Conventionally, when a special additive for bagging in an asphalt plant is charged into a mixer in which asphalt is pre-filled, the method is performed manually by hand, or the bagging is performed by a normal belt conveyor. A method of transporting and adding a special additive to a mixer has been performed.

[0003] In the production process of recycled composite material,
Injection of recycled materials is done while measuring using a surge bin.

[0004]

However, the above-mentioned conventional material charging methods have the following problems, respectively. In the asphalt plant, the method of manually inputting the bagged special additives by hand or the method of transporting and feeding the bagged special additives to the mixer using a normal belt conveyor are the Since the method of confirming the number of charged materials is performed by itself, there are many cases where the amount and timing of charged materials are not appropriate, resulting in a poorly reliable charging operation.

[0005] Further, since no device for measuring the input amount is used, it is not possible to issue a print record of weight indication for proving the input amount, and the input amount is poorly manageable. Further, when the special additive for bagging is manually input, the input operation is performed on a mixer, so that workability is poor and safety is poor.
In the production process of the recycled composite material, in the method in which the bulk recycled material is charged using the surge bin, clogging of the recycled material in the surge bin poses a problem.

In view of the above-mentioned conventional problems, the present invention employs a configuration in which the weighing and feeding of materials are automatically performed instead of the conventional configuration in which manual feeding and manual feeding are performed. In addition to improving the timing of injection, it will ensure high reliability and smooth operation.
An object of the present invention is to provide a charging device which improves the controllability of the charging amount and is excellent in workability and safety.

[0007]

For this purpose, the material input device of the present invention is provided with a conveying means for conveying and supplying the input material from the ground to a predetermined height position, and is provided at the predetermined height position. stocks undergoing material conveyed supplied by the transport means, supply means for supplying a predetermined position, the feed hand
Provided integrally on the stage and transported to the supply means by the transport means
The weight of the supplied material is determined during stocking by the supply means.
Measuring means for measuring the number of materials conveyed to the supplying means by the conveying means, counting means for counting the number of materials in the middle of the stock by the supplying means, provided below the supply part of the supplying means, A material feeding section into which the material supplied by the means is fed, and when the count of a predetermined number is completed based on a count signal output from the counting means, the transporting / feeding operation of the transporting means is stopped and after the completion of the counting. The predetermined weight and
Error from actual weight measured by weighing means
If the value does not exceed, the supply operation of the supply means is started,
And control means for emergency-stopping the supply operation of the supply means when exceeding .

In addition, the charged material is placed at a predetermined height from the ground.
Transport means for transporting the paper to the position, and
Receiving the material conveyed and supplied by the conveying means.
Supply means for stocking and supplying to a predetermined position;
Means, and is carried by the conveying means to the supply means.
The weight of the fed material is stored by the feeding means.
Weighing means for weighing inside, and a supply part of the supply means
And the material supplied by the supply means is
Material input section to be input and output from the measuring means
When the weighing of the specified material weight is completed based on the weighing signal
Then, the feeding operation of the feeding means is stopped and the weighing is completed.
Control means for starting the supply operation of the supply means after the
It was composed.

[0009]

In the above construction, the conveying means is driven, and a material, for example, a special additive packed in a bag is charged into the carry-in portion of the conveying means. The bagged special additives are sequentially conveyed by the conveying means, sequentially supplied from the unloading section to the supply means, and stocked. The counting means counts the number of stocked special additives in the bag, and when a predetermined count is reached, the control means outputs a signal to stop the driving of the conveying means to the conveying means. Accordingly, the driving of the transporting means is stopped, the transporting of the bagged special additive by the transporting means is stopped, and the supply of the bagged special additive to the supply means is stopped.

[0010] Thereafter, the supply means is driven at a predetermined timing, for example, and the special additive in a bag is sequentially supplied from the supply means to the material charging section. In this case, the predetermined weight
Error between the actual weight measured by the weighing means and
Supply operation of the supply means starts only when the specified value is not exceeded
If it exceeds, the supply operation of the supply means will be stopped
It is. Alternatively, the transporting means is driven, and a material, for example, a regenerated material of loose materials is loaded into the loading section of the transporting means. The recycled material is sequentially conveyed by the conveying means, sequentially supplied from the unloading section to the supply means, and stocked. The weight of the stocked recycled material is weighed by the weighing means, and the material weight detection signal output by the weighing means is input to the control means. The control means, based on the material weight detection signal, when the weight of the recycled material reaches a predetermined weight,
A signal for stopping the driving of the transport unit is output to the transport unit. Accordingly, the driving of the transporting means is stopped, the transport of the recycled material by the transporting means is stopped, and the supply of the recycled material to the supply means is stopped.

Thereafter, the supply means is driven, for example, at a predetermined timing, and the recycled material is dropped and supplied from the supply means to the material input section in sequence.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings. In FIG. 1, a material feeding device is provided with a supply belt conveyor 1 as a conveying means for conveying and supplying the supplied material from the ground to a predetermined height position, and the supply belt conveyor 1 is disposed at the predetermined height position. The conveyor belt is provided integrally with the weighing belt conveyor 2 as supply means for receiving and stocking the material conveyed and supplied by the weighing belt conveyor, and is supplied to the weighing belt conveyor 2 by the supply belt conveyor 1. A floor scale 3 having a built-in load cell (not shown) as a weighing means for measuring the weight of the conveyed material in the middle of the stock by the weighing belt conveyor 2, and the material conveyed and supplied to the weighing belt conveyor 2 by the supply belt conveyor 1. Counting the number of pieces in the middle of stocking by the weighing belt conveyor 2 A step, a mixer 4 disposed below the unloading section of the weighing belt conveyor 2, and a material input section into which the material conveyed and supplied by the weighing belt conveyor 2 is input, and an output from the load cell of the floor scale 3. When the measurement of a predetermined material weight is completed based on the measured weighing signal, or when the predetermined number of counts is completed based on the count signal output from the counting means, the conveyance and supply operation of the supply belt conveyor 1 is performed. Control means for stopping and starting the supply operation of the weighing belt conveyor 2 after completion of the weighing or counting.

The supply belt conveyor 1 comprises a horizontal portion 1A installed on the ground surface and an inclined portion 1B extending obliquely upward from the tip of the horizontal portion 1A to a predetermined height from the ground surface. Is done. The base end of the horizontal portion 1A serves as a material carrying-in portion 1a, and the upper end of the inclined portion 1B serves as a material carrying-out portion 1b. A drive motor 5 for the supply belt conveyor 1 is provided on a support 1C provided at the upper end of the supply belt conveyor 1 body. The drive shaft 5a of the drive motor 5 and the drive shaft 1c at the upper end of the supply belt conveyor 1
The power supply belt conveyor 1 is driven by the drive of the drive motor 5.

A hopper 7 with a feeder for charging a powder material is disposed immediately above the carry-in section 1a of the supply belt conveyor 1, and a manual operation box 8 is provided near the hopper 7.
Are arranged. The weighing belt conveyor 2 is disposed such that the carry-in section 2a is located below the carry-out section 1b of the supply belt conveyor 1. This weighing belt conveyor 2
The drive motor 9 of the weighing belt conveyor 2 is provided at the end of the main body.
Are arranged. The drive shaft 9a of the drive motor 9 and the drive shaft 2c at the upper end of the weighing belt conveyor 2 are
0 and the like.
Drives the measuring belt conveyor 2.

The main body of the weighing belt conveyor 2 is supported by the floor scale 3 via supporting legs 11, and the weight of the material placed on the weighing belt conveyor 2 is measured by the load cells of the floor scale 3. . The counting means comprises a counter for counting the number of material detection signals output by the photoelectric sensor 12 for detecting that the material has passed. The photoelectric sensor 12 is installed in the loading section 2a of the weighing belt conveyor 2, and a function as a counter is provided as software on a computer control panel 13 including a microcomputer or the like.

An operation display panel 14 and a patrol light (alarm lamp) 15 are arranged above the main body of the weighing belt conveyor 2. The mixer 4 is provided at a lower front portion of the unloading section 2b of the weighing belt conveyor 2. Between the unloading section 2b of the weighing belt conveyor 2 and the input port 4a of the mixer 4, introduction sections 16 and 17 for vertically introducing the material unloaded and supplied from the unloading section 2b into the mixer 4 are provided. Have been. An opening / closing gate 1 is provided between the upper and lower introduction portions 16 and 17.
8 are provided. The opening / closing gate 18 is connected to an operating rod 19a of an air cylinder device 19, and is opened / closed by the expansion / contraction operation of the operating rod 19a driven by the air cylinder device 19.

The drive motor 5, the manual operation box 8, the drive motor 9 of the weighing belt conveyor 2 and the computer control panel 13 of the supply belt conveyor 1
0 is electrically connected. The computer control panel 13 includes the floor scale 3, the photoelectric sensor 12, the operation display panel 14, the patrol light 15, and the air cylinder device 1.
Nine air switching control valves 19b are connected via signal lines, respectively. The computer control panel 13 counts a predetermined number of times when the weighing of a predetermined material is completed based on the weighing signal output from the load cell of the floor scale 3 or based on the count signal output from the counting means. When the operation is completed, a software function is provided as control means for stopping the conveyance and supply operation of the supply belt conveyor 1 and starting the supply operation of the measurement belt conveyor 2 after completion of weighing or counting.

Next, the operation of the material charging apparatus having the above-described structure will be described. First, a case will be described in which a special additive for bagging in an asphalt plant is charged into a mixer 4 previously filled with asphalt. The supply belt conveyor 1 is driven at a constant speed, and the bagged special additive X is fed into the carry-in section 1a of the conveyor 1. The bagged special additives X are successively conveyed by the supply belt conveyor 1 and the weighing belt conveyor 2
Are sequentially supplied to the carry-in section 2a. The photoelectric sensor 12 provided in the carry-in section 2a detects the passage of the supplied special additive X in the bag, and the material detection signal output by the photoelectric sensor 12 is input to the computer control panel 13.

The counter function of the computer control panel 13 counts the number of the material detection signals.
When a predetermined count is reached, a signal to stop driving the supply belt conveyor 1 is output to the supply belt conveyor 1. Accordingly, the driving of the supply belt conveyor 1 is stopped, the conveyance of the bagged special additive X by the supply belt conveyor 1 is stopped, and the supply of the bagged special additive X to the measuring belt conveyor 2 is stopped. You.

The operation of the weighing belt conveyor 2 at the time of weighing as described above is as follows. That is, in order to place the bagged special additive X uniformly on the weighing belt conveyor 2, the weighing belt conveyor 2 is conveyed by a certain distance every time the number reaches a certain number. For example, as shown in FIG. 2, when nine bagged special additives X are weighed,
When three pieces are weighed, the weighing belt conveyor 2 is driven to move the belt. When three pieces are weighed, the weighing belt conveyor 2 is driven to move the belt.
The measuring belt conveyor 2 is driven to move the belt, and three special additive materials X packed in bags are placed at three places on the belt conveyor 2 as shown in FIG.

Here, after the number of the special additives X packed in the bag is confirmed to be the set number as described above, the weight is measured by the load cell of the floor scale 3, and if the weight is inappropriate, That is, when the error between the predetermined weight and the actual weight exceeds a predetermined value, the driving of the weighing belt conveyor 2 is stopped in an emergency. In this case, the operation of manually removing the special additive X in the bag from the weighing belt conveyor 2 is performed.

When the weight is measured by the load cell of the floor scale 3 and it is confirmed that the weight is appropriate, the driving of the measuring belt conveyor 2 is continued. As described above, after it is confirmed that the special additive X in the bag is the set number and the weight is the set weight, the measuring belt conveyor 2 is driven at the predetermined timing at the same time as the air is supplied. When the cylinder device 19 is contracted and the opening / closing gate 18 is opened, the special additive X packed in the bag on the belt conveyor 2 is sequentially dropped and supplied to the mixer 4 through the introduction sections 16 and 17.

Next, a description will be given of a case in which a bulk recycled material as a powder material is supplied to the mixer 4 in the process of manufacturing the recycled mixture. By driving the supply belt conveyor 1,
In the hopper 7 arranged in the carry-in part 1a of the conveyor 1,
Add recycled materials. The recycled material in the hopper 7 is dropped and supplied to the carry-in section 1a of the supply belt conveyor 1, is sequentially conveyed by the belt conveyor 1, and is sequentially supplied from the carry-out section 1b to the carry-in section 2a of the measuring belt conveyor 2. The weight of the recycled material on the weighing belt conveyor 2 is measured by a load cell of the floor scale 3 in the weighing belt conveyor 2, and a material weight detection signal output from the load cell is input to the computer control panel 13. When the weight of the recycled material reaches a predetermined weight based on the material weight detection signal, the computer control panel 13 outputs a signal to stop the driving of the supply belt conveyor 1 to the supply belt conveyor 1. Accordingly, the driving of the supply belt conveyor 1 is stopped, the conveyance of the recycled material by the supply belt conveyor 1 is stopped, and the supply of the recycled material to the measuring belt conveyor 2 is stopped.

Also in the case of this recycled material, the measuring belt conveyor 2 is conveyed by a certain distance every time the weight becomes constant in order to uniformly place the recycled material on the measuring belt conveyor 2. Thereafter, when the weighing belt conveyor 2 is driven at a predetermined timing and the opening / closing gate 18 is opened at the same time, the recycled materials on the belt conveyor 2 are sequentially dropped and supplied to the mixer 4.

According to the charging device having such a configuration, the additive material or the regenerated material discharged from the ground by the supply belt conveyor 1 is temporarily stocked and weighed in the weighing belt conveyor 2 equipped with a load cell as the weighing means and the counting means. When the number of bags or the weight of the recycled material reaches a predetermined number or a predetermined weight, the driving of the supply belt conveyor 1 is stopped, and the supply of the bagged special additives or the recycled material to the measuring belt conveyor 2 is performed. Is stopped, and then the special additive or reclaimed material packed in the bag stored in the measuring belt conveyor 2 is automatically charged into the mixer 4 at a preset timing. It is an appropriate and reliable input operation.

Furthermore, since the special additive for bagging is not manually charged, the workability is good and the safety is excellent. In particular, in the present embodiment, after detecting that the number of bagged special additives is a predetermined number, the weight is weighed, and the amount of the bagged special additives to be supplied is an appropriate amount. If the weight of each special additive in the bag is different and the total number is incorrect but the total weight is incorrect, prevent the addition of the special additive. Therefore, there is an advantage that an appropriate amount of the special additive can always be introduced.

[0027] In the method of manufacturing a recycled composite material, a method of using a surge bin to input a regenerated bulk material is as follows.
The clogging of the recycled material in the surge bin poses a problem, but in the above configuration, there is no such concern at all. In the above-described charging device, for example, the timing of charging the special additive into the mixer 4 and the time until the mixture is discharged can be set arbitrarily, and these can be input to the computer control panel 13 in advance.

Further, it is preferable to provide a mechanism for issuing a measurement slip using the number count value and the weight value of the special additive added in the bag. Thereby, there is an advantage that the controllability of the input amount is improved. Further, in the above embodiment, when the weight is measured by the load cell and the weight is inappropriate, that is, when the error between the predetermined weight and the actual weight exceeds a predetermined value, the weighing belt is used. Although the emergency stop of the driving of the conveyor 2 has been described above, the input weight of the additive and the error range thereof can be set in advance.

In the above-described embodiment, the measuring belt is provided as a supply unit which is disposed at a predetermined height, receives and conveys the material conveyed and supplied by the conveyance unit (supply belt conveyor 1), and supplies the material to the predetermined position. Although the conveyor 2 is applied, the invention is not limited to this, and a hopper equipped with a weighing unit and a counting unit is applied, and the hopper receives the material transported and supplied by the transporting unit (the supply belt conveyor 1) and stocks it. May be.

Further , in the above-described embodiment, the adding device of the additive material and the recycled material in the asphalt plant has been described. However, the charging device of the present invention is also applicable to the charging of the material in a mixing plant such as a patcher plant or a soil plant. Applicable.

Although the present invention has been described with reference to the specific embodiment as described above, the present invention is not limited to this, and is attached to the present invention by a person skilled in the art. It should be noted that various changes and modifications can be made without departing from the scope of the claimed utility model registration claim.

[0032]

As described above, according to the material charging apparatus of the present invention, the conveying means, the supply means for receiving and stocking the material conveyed and supplied by the conveying means, and supplying the material to a predetermined position, while providing a material supply unit supplied material is turned by the feed means, provided integrally with the feed means, stock middle by said supply means the weight of the transported supplied to the supply means material by conveying means Weigh in
Weighing means to be transported and supplied to the supply means by the transport means.
The number of the material
A counting means for counting the weight and a predetermined weight when a predetermined number of counts are completed based on the count signal output from the counting means.
Error from the actual weight measured by the column exceeds the specified value
If not, start the supply operation of the supply means and
Control system for emergency stop of supply operation of supply means
Therefore, the amount and timing of material input are appropriate.
In addition to the highly reliable input work,
It has advantages such as good safety and excellent safety.
In addition, the actual weight measured by the predetermined weight and measuring means
If the error with the weight exceeds a predetermined value, supply of the supply means
Emergency operation stops, not only the number but also weight management
It can be done reliably. Alternatively, a transport unit and the transport
Receiving the material conveyed and supplied by
Supply means for supplying to a fixed position;
And a material input section into which the input material is input.
It is provided integrally with the feeding means, and the feeding means
The weight of the material conveyed and supplied is stored by the supply means.
A weighing means for weighing is provided on the way,
Material weight based on the weighing signal output from the
When the weighing of the amount is completed,
Stop and start feeding operation of feeding means after completion of weighing
Since the control system is used, the input amount and input timing
Is appropriate and reliable input work
In addition, advantages such as good workability and excellent safety
Having.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing one embodiment of a material charging device according to the present invention.

FIG. 2 is a schematic diagram for explaining the operation of the embodiment.

[Explanation of symbols]

 Reference Signs List 1 supply belt conveyor 2 weighing belt conveyor 3 floor scale 4 mixer 12 photoelectric sensor 13 computer control panel

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-53-56591 (JP, A) JP-A-3-148402 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65G 43/08

Claims (2)

(57) [Scope of request for utility model registration] 1. A conveying means for conveying and supplying an input material from the ground to a predetermined height position, and a material disposed at the predetermined height position, receiving the material conveyed and supplied by the conveying means, stocking the material, and Supply means for supplying to a position, and the supply means
Are provided integrally with the supply means by the transfer means.
The weight of the supplied material is changed during the stocking by the supply means.
Weighing means for weighing , a counting means for counting the number of materials conveyed to the supply means by the conveyance means in the middle of the stock by the supply means, and a measurement means provided below the supply section of the supply means; A material supply section into which the material supplied by the supply means is supplied, and when a predetermined number of counts are completed based on a count signal output from the count means, the transport supply operation of the transport means is stopped and the count is completed. Later , the predetermined weight and said
The error from the actual weight measured by the weighing means is the specified value
If not, start the supply operation of the supply means and
And a control means for emergency-stopping the supply operation of the supply means in a case where it is obtained . 2. A conveying means for conveying and supplying the input material from the ground to a predetermined height position, and a material arranged at the predetermined height position, receiving the material conveyed and supplied by the conveying means, stocking the material, and Supply means for supplying to the position, a measuring means which is provided integrally with the supply means and measures the weight of the material conveyed and supplied to the supply means by the conveyance means in the middle of the stock by the supply means, and a supply of the supply means A material input unit, which is disposed below the unit and into which the material supplied by the supply unit is input, and the transfer unit when a predetermined material weight is completed based on a measurement signal output from the measurement unit. And a control means for stopping the feeding operation of the feeding means and starting the feeding operation of the feeding means after the completion of the weighing.