JPH0667429U - Material input device - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to optimize the amount and timing of material input. [Structure] A supply belt conveyor 1, a measuring belt conveyor 2, and a mixer 4 are provided, while the weight of the material conveyed and supplied to the measuring belt conveyor 2 is measured.
In addition to providing a measuring means for measuring in the middle of stocking by means of or a counting means for counting the number of materials
When the measurement of a predetermined material weight is completed based on the measurement signal output from the measurement means, or when a predetermined number of counts are completed based on the count signal output from the counting means, the feeding and feeding of the supply belt conveyor 1 is performed. A control means for stopping the operation and starting the feeding operation of the measuring belt conveyor 2 after the completion of counting or the completion of weighing is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a material feeding device, which measures a material such as a special additive material or a recycled material (recycled material) in an asphalt plant or the like, and automatically feeds only a predetermined amount to a material feeding portion such as a mixer. Regarding the device.

[0002]

[Prior art]

 Conventionally, when adding special bagging additives in an asphalt plant to a mixer that has been pre-filled with asphalt, it can be done manually by hand, or by a conventional belt conveyor. There are methods such as conveying the material to the mixer and inputting it.

Further, in the process of manufacturing a recycled composite material, conventionally, a recycled material of a bulk material is charged while being measured using a surge bin.

[0004]

[Problems to be solved by the device]

 However, each of the above-mentioned conventional material charging methods has the following problems. In an asphalt plant, when the method of manually loading the bag-filled special additive material or the method of transporting the baggage special additive material to the mixer by a normal belt conveyor and loading it Since it is a method of checking the number of materials input by itself, the material input amount and timing are often not appropriate, and the input work is inferior in reliability.

Further, since a device for measuring the input amount is not used, it is not possible to issue a print record of a weight display certifying the input amount, and the controllability of the input amount is poor. Further, when the bagging of the special additive material is manually carried out, the charging work is carried out on the mixer, resulting in poor workability and poor safety. In the process of manufacturing recycled composite material, in the method in which the recycled material of bulk material is charged using the surge bin, clogging of the recycled material in the surge bin becomes a problem.

In view of the conventional problems as described above, the present invention is configured such that the material is weighed and charged automatically instead of the conventional manual operation. Providing an input device with excellent reliability and smooth injection work by optimizing the injection timing, improving the controllability of the injection amount, and excellent in workability and safety To do.

[0007]

[Means for Solving the Problems]

 For this reason, the material feeding device of the present invention is provided with a feeding means for feeding the fed material from the ground to a predetermined height position, and a feeding means arranged at the predetermined height position and fed by the feeding means. A stocking means for receiving the stocked material and supplying it to a predetermined position; a counting means for counting the number of the materials carried and supplied to the supplying means by the carrying means during the stocking by the supplying means; The material feeding portion, which is disposed below the feeding portion, into which the material fed by the feeding means is fed, and the carrying means when a predetermined number of counts are completed based on the count signal output from the counting means. And a control means for stopping the transport and supply operation and starting the supply operation of the supply means after completion of the counting.

Further, instead of the counting means and the control means, a weighing means which is provided integrally with the feeding means and weighs the weight of the material conveyed and fed to the feeding means by the feeding means during the stocking by the feeding means. And a control means for stopping the feeding and feeding operation of the feeding means when the weighing of a predetermined material weight is completed based on the weighing signal output from the weighing means, and for starting the feeding operation of the feeding means after the weighing is completed. And so on.

[0009]

[Action]

 In such a structure, the transporting means is driven and a material, for example, a special additive material for bagging is loaded into the carry-in part of the transporting means. The special additive material in the bag is sequentially transported by the transporting means, sequentially fed from the unloading section to the feeding means, and stocked. The counting means counts the number of stocked special additive materials in the bag, and when the predetermined count number is reached, the control means outputs a signal for stopping the driving of the carrying means to the carrying means. Therefore, the driving of the carrying means is stopped, the carrying of the special additive material for bagging by the carrying means is stopped, and the supply of the special additive material for bagging to the feeding means is stopped.

After that, for example, the supply means is driven at a predetermined timing, and the bag-added special additive material is sequentially supplied from the supply means to the material feeding section. Alternatively, the transport means is driven to load a material, for example, a recycled material of a bulk, into the carry-in part of the transport means. Recycled material is sequentially transported by the transport means, and is 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. Based on the material weight detection signal, the control means outputs a signal for stopping the driving of the carrying means to the carrying means when the weight of the recycled material reaches a predetermined weight. Therefore, the driving of the conveying means is stopped, the conveying of the recycled material by the conveying means is stopped, and the supply of the recycled material to the supplying means is stopped.

After that, for example, the supply means is driven at a predetermined timing, and the recycled material is sequentially dropped and supplied from the supply means to the material charging section.

[0012]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In FIG. 1, the material feeding device is 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 is arranged at the predetermined height position. 1. A weighing belt conveyor 2 as a feeding means for receiving the material conveyed and fed by 1 and feeding it to a predetermined position, and a weighing belt conveyor 2 which is integrally provided on the weighing belt conveyor 2 and is fed by the feeding belt conveyor 1. A floor scale 3 incorporating a load cell (not shown) as a weighing means for weighing the weight of the material conveyed and fed to the weighing belt conveyor 2 during the stocking by the weighing belt conveyor 2 and the feeding belt conveyor 1 to the weighing belt conveyor 2. A counter that counts the number of materials transported and supplied during stocking by the weighing belt conveyor 2. From the load cell of the floor scale 3 and the mixer 4 as a material input unit disposed below the unloading unit of the weighing belt conveyor 2 and into which the material conveyed and supplied by the weighing belt conveyor 2 is input. When the measurement of a predetermined material weight is completed based on the output weighing signal, or when a predetermined number of counts are completed based on the count signal output from the counting means, the feeding and feeding operation of the supply belt conveyor 1 And a control means for starting the supply operation of the weighing belt conveyor 2 after the measurement or the counting is completed.

Here, the supply belt conveyor 1 includes 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 position of a predetermined height from the ground surface. Composed of. A base end portion of the horizontal portion 1A serves as a material carrying-in portion 1a, and an upper end portion of the inclined portion 1B serves as a material carrying-out portion 1b. A drive motor 5 of the supply belt conveyor 1 is arranged on a support portion 1C provided at the upper end of the main body of the supply belt conveyor 1. The drive shaft 5a of the drive motor 5 and the drive shaft 1c at the upper end of the supply belt conveyor 1 are interlocked via a power transmission means such as a belt 6, and the supply belt conveyor 1 is driven by the drive of the drive motor 5. To be done.

A hopper 7 with a feeder for loading a powder material is arranged immediately above the carry-in portion 1a of the supply belt conveyor 1, and a manual operation box 8 is arranged near the hopper 7. There is. The weighing belt conveyor 2 is arranged such that the carry-in section 2a is located below the carry-out section 1b of the supply belt conveyor 1. A drive motor 9 for the measuring belt conveyor 2 is arranged at the tip of the main body of the measuring belt conveyor 2. The drive shaft 9a of the drive motor 9 and the drive shaft 2c at the upper end portion of the measuring belt conveyor 2 are interlocked via a power transmission means such as a belt 10, and the measuring belt conveyor 2 is driven by the drive of the drive motor 9. .

The main body of the weighing belt conveyor 2 is supported on the floor scale 3 via support legs 11, and the load cell of the floor scale 3 measures the weight of the material placed on the weighing belt conveyor 2. It The counting means is composed of a counter that counts the number of material detection signals output by the photoelectric sensor 12 that detects that the material has passed. The photoelectric sensor 12 is installed in the carry-in section 2a of the weighing belt conveyor 2, and the function as a counter is provided as software in a computer control panel 13 having a built-in 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 arranged in the lower front portion of the carry-out section 2b of the weighing belt conveyor 2. Between the carry-out section 2b of the weighing belt conveyor 2 and the input port 4a of the mixer 4, there are vertically divided introduction sections 16, 17 for introducing the material carried out and supplied from the carry-out section 2b into the mixer 4. It is provided. An opening / closing gate 18 is provided between the upper and lower introducing portions 16 and 17. The opening / closing gate 18 is connected to the operating rod 19a of the 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 of the supply belt conveyor 1, the manual operation box 8, the drive motor 9 of the measuring belt conveyor 2 and the computer control board 13 are electrically connected to the switchboard 20. Further, the floor scale 3, the photoelectric sensor 12, the operation display panel 14, the patrol light 15 and the air switching control valve 19b of the air cylinder device 19 are connected to the computer control panel 13 via signal lines, respectively. The computer control panel 13 displays a predetermined number of materials when the weight of a predetermined material is completed based on the weight signal output from the load cell of the floor scale 3 or based on the count signal output from the counting means. When the counting is completed, the function as a control means for stopping the carrying and feeding operation of the feeding belt conveyor 1 and starting the feeding operation of the weighing belt conveyor 2 after the completion of weighing or counting is provided by software. .

Next, the operation of the material charging device having such a configuration will be described. First, description will be made regarding the case where the bagging special additive material in an asphalt plant is charged into the mixer 4 pre-filled with asphalt. The supply belt conveyor 1 is driven at a constant speed, and the bag-filled special additive material X is introduced into the carry-in section 1a of the conveyor 1. The bag-filled special additive material X is sequentially conveyed by the supply 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 photoelectric sensor 12 provided in the carry-in section 2a detects the passage of the supplied special additive material X in the bag, and the material detection signal output from the photoelectric sensor 12 is input to the computer control panel 13. .

The counter function of the computer control board 13 counts the number of the material detection signals, and the control means sends a signal to stop the driving of the supply belt conveyor 1 when a predetermined count number is reached. Output to the supply belt conveyor 1. Therefore, the driving of the supply belt conveyor 1 is stopped, the feeding of the bagging special additive material X by the supply belt conveyor 1 is stopped, and the supply of the bagging special additive material X to the measuring belt conveyor 2 is stopped. To be done.

Here, the operation of the weighing belt conveyor 2 at the time of weighing as described above is as follows. That is, in order to evenly place the special additive material X packed in the bag on the weighing belt conveyor 2, the weighing belt conveyor 2 is moved by a certain distance each time a fixed number of the additive materials X are provided. For example, as shown in FIG. 2, in the case of weighing 9 pieces of the bag-filled special additive material X, if 3 pieces are weighed, the weighing belt conveyor 2 is driven to move the belt, and if 3 pieces are weighed, The weighing belt conveyor 2 is driven to move the belt, and when three pieces are weighed, the weighing belt conveyor 2 is driven to move the belt, and the belt is moved to three locations on the belt conveyor 2 as shown in FIG. Place the special additive materials X packed in groups of three.

In the present embodiment, after it was confirmed that the number of the special additive materials X for bagging was the set number as described above, the weight was measured by the load cell of the floor scale 3, and the weight was unsuitable. In that case, that is, when the difference between the predetermined weight and the actual weight exceeds the predetermined value, the driving of the measuring belt conveyor 2 is stopped. In this case, the operator manually removes the special additive material X packed in the bag from the measuring belt conveyor 2.

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 number of the bag-filled special additive material X is the set number and the weight is the set weight, the weighing belt conveyor 2 is driven at the same time at a predetermined timing. When the air cylinder device 19 is contracted and the opening / closing gate 18 is opened, the bag-filled special additive material X on the belt conveyor 2 is sequentially dropped and supplied to the mixer 4 through the introduction portions 16 and 17.

Next, in the manufacturing process of the recycled composite material, the case where the recycled material of the bulk material as the powder material is put into the mixer 4 will be described. The supply belt conveyor 1 is driven to load recycled material into the hopper 7 arranged in the carry-in section 1a of the conveyor 1. The recycled material in the hopper 7 is dropped and supplied to the carry-in section 1a of the supply belt conveyor 1, sequentially conveyed by the belt conveyor 1, and sequentially supplied from the carry-out section 1b to the carry-in section 2a of the weighing belt conveyor 2. The weight of the recycled material on the weighing belt conveyor 2 is weighed by the load cell of the floor scale 3 on the weighing belt conveyor 2, and the material weight detection signal output by the load cell is input to the computer control panel 13. Based on the material weight detection signal, the computer control board 13 outputs a signal to the supply belt conveyor 1 to stop the drive of the supply belt conveyor 1 when the weight of the recycled material reaches a predetermined weight. . Therefore, 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.

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

According to the charging device having such a configuration, the additive material or the recycled material unloaded from the ground by the supply belt conveyor 1 is temporarily stocked and weighed in the weighing belt conveyor 2 equipped with the load cell and the counting means as the weighing means. When the number of special additives for bagging or the weight of recycled materials reaches a predetermined number or weight, the driving of the supply belt conveyor 1 is stopped, and the special additives or recycled materials for bagging on the measuring belt conveyor 2 are stopped. Is stopped, and after that, the bagging special additive material or recycled material stocked on the measuring belt conveyor 2 is automatically charged to the mixer 4 at a preset timing. The timing will be appropriate and the input work will be highly reliable.

Further, since the bagging special additive material is not manually input, the workability is excellent and the safety is also excellent. In particular, in the present embodiment, after detecting that the number of the special additive materials for bagged is a predetermined number, the weight thereof is weighed, and whether the special additive material for bagged is an appropriate amount. Since the weight of each special additive material in the bag is different and the total weight is incorrect even if the number is proper, it is necessary to prevent the special additive material from being added. The advantage is that the special additive material can always be added in an appropriate amount.

In addition, in the method of manufacturing recycled composite material by using a surge bin for supplying the recycled material of the bulk material, clogging of the recycled material in the surge bin poses a problem. No worries. In the above-mentioned charging device, for example, the time until the special additive material is charged into the mixer 4 and the time until the discharge of the mixture material can be set arbitrarily, and this can be input to the computer control panel 13 in advance.

Further, it is advisable to provide a mechanism for issuing a weighing slip that utilizes the number count value and the weight measurement value of the bag-added special additive material. This has the advantage that the controllability of the input amount is good. Further, in the above embodiment, when the weight is measured by the load cell and the weight is inappropriate, that is, when the difference between the predetermined weight and the actual weight exceeds the predetermined value, the weighing belt is used. Although it has already been explained that the driving of the conveyor 2 is to be stopped, it is possible to preset the weight of the added material and its error range in advance.

In the above-mentioned embodiment, the measuring belt is arranged at a predetermined height position, receives and stocks the material conveyed and supplied by the conveying means (supply belt conveyor 1), and supplies it to the predetermined position. Although the conveyor 2 is applied, the present invention is not limited to this, and a hopper equipped with weighing means and counting means is applied so that the hopper receives and stocks the material conveyed and supplied by the conveying means (supply belt conveyor 1). It's okay.

Further, in the above embodiment, the weighing belt conveyor 2 is equipped with both the load cell as the measuring means and the counting means, but it may be equipped with either one. Further, in the above-mentioned embodiment, the adding material and the recycled material feeding device in the asphalt plant is described, but the feeding device of the present invention can be applied to the feeding of the material in the mixing plant such as the patcher plant or the soil plant.

As described above, the present invention has been described with reference to the specific embodiments, but the present invention is not limited to this, and a person skilled in the art can apply the present invention to the present invention. It should be noted that various changes and modifications can be made without departing from the scope of the attached utility model registration request.

[0032]

[Effect of device]

 As described above, according to the material feeding device of the present invention, the feeding means, the feeding means for receiving and stocking the material fed by the feeding means, and feeding it to the predetermined position, and the feeding means. A material feeding section for feeding the supplied material is provided, and the number of materials fed to the feeding means by the feeding means is integrally provided in the feeding means and is counted during the stocking by the feeding means. The measuring means or the conveying means is provided with a measuring means for measuring the weight of the material conveyed and supplied to the supplying means in the middle of the stocking by the supplying means, and a predetermined amount is determined based on the count signal output from the counting means. When the counting of the number is completed or when the weighing of a predetermined material is completed based on the weighing signal output from the weighing means, A control system that stops the feeding and supplying operation and starts the supplying operation of the supplying means after the completion of the counting or the measurement is completed, so that the material input amount and the input timing are appropriate, and the input operation is highly reliable. In addition, the workability is good, and the safety is also excellent.

[Brief description of drawings]

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

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

[Explanation of symbols]

 1 Supply Belt Conveyor 2 Measuring Belt Conveyor 3 Floor Scale 4 Mixer 12 Photoelectric Sensor 13 Computer Control Panel

Claims (2)

[Scope of utility model registration request] 1. A transporting means for transporting the introduced material from the ground to a predetermined height position, and a material arranged at the predetermined height position for receiving and stocking the material transported and supplied by the transporting means, and predetermined. A supply means for supplying to a position, a counting means for counting the number of materials conveyed and supplied to the supply means by the conveying means in the middle of stocking by the supplying means, and arranged below the supply section of the supplying means, When a predetermined number of counts are completed based on the material input section into which the material supplied by the supply means is supplied and the count signal output from the counting means, the transfer and supply operation of the transfer means is stopped and the count is completed. And a control means for starting the supply operation of the supply means later. 2. Conveying means for conveying the introduced material from the ground to a predetermined height position, and a material arranged at said predetermined height position, receiving and stocking the material conveyed and supplied by said conveying means, and stocking it. Supply means for supplying to a position, measuring means provided integrally with the supplying means for measuring the weight of the material conveyed and supplied to the supplying means by the conveying means in the middle of stocking by the supplying means, and supply of the supplying means A material feeding section which is disposed below the section and into which the material supplied by the supplying means is charged, and the conveying means when the predetermined material weight is measured based on the measurement signal output from the measuring means. And a control means for starting the feeding operation of the feeding means after the completion of the weighing, the material feeding device.