JP2001106292A - Hopper device and weight metering method for hopper device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hopper device for securely and quickly discharging a stored material in a hopper. SOLUTION: A first opening and closing plate 7 is totally opened and totally closed repeatedly until the integrated value of the small amount distribution weight metering by a metering hopper 14 is metered close to the target total gross weight. On the other hand, when the integrated value is metered close to the target total gross weight, the first opening and closing plate 7 is totally opened, and then opened and held on a middle position and then totally opened. For instance, the 30 kg small amount distribution is metered in the first to third metering operations. At that time, the first opening and losing plate 7 is totally opened and totally closed repeatedly for metering, and the metering rate can be accelerated. In the fourth metering, the first opening and closing plate 7 is totally opened and metering is carried out, and then when the preset small amount feed (metered) set target value is reached, the opening degree of the first opening and closing plate 7 is set smaller, and also the discharge amount per unit time is set smaller to adjust the discharge.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hopper device for storing cereals and the like and a method for weighing the hopper device.

[0002]

Conventionally, as this kind, there is provided a base provided with a weight measuring means for placing an object to be weighed, and a display means for displaying the weight measured by the weight measuring means. Platform balances are known. When measuring, for example, 1 ton of paddy on such a platform scale, paddy is previously accumulated in an accumulation hopper, while a storage container such as a bag is placed on the platform, and the accumulation hopper is Is opened and the paddy is dropped and put into the container, and when the weight measurement reaches 1 ton, the lower drop opening is closed to finish the measurement.

[0003] However, in such a platform scale for 1 ton or the like, it was not possible to measure the weight by subdividing paddy or the like into, for example, 30 kg.

On the other hand, for example, when measuring 1 ton using a measuring instrument having a maximum scale (full scale) of 30 kg,
You must weigh 30 kg 33 times and 10 kg once.

[0005] As described above, it is difficult to measure 30 kg of a conventional measuring device, for example, for 1 ton, or 1 ton with a measuring device having a maximum scale of 30 kg.

[0006] Therefore, an object of the present invention is to provide a hopper device that can measure accurately. Still another object of the present invention is to provide a hopper device capable of measuring miniaturization. It is another object of the present invention to provide a method of measuring a hopper device which can measure not only a large weight but also a light weight, and can discharge an object accurately and quickly when the weight is large.

[0007]

According to a first aspect of the present invention, there is provided a hopper device provided with an opening / closing device for opening and closing a drop port provided at a lower portion of a hopper. And a drive device for opening and holding the drop opening at an intermediate position thereof in addition to fully closing and fully opening the drop port.

[0010] According to the configuration of the first aspect, in addition to fully closing and fully opening the opening of the falling port, and adjusting the intermediate position between them, it is possible to accurately discharge the object in the hopper.

According to a second aspect of the present invention, the opening / closing member is provided at the drop opening so as to swing and open and close, and the driving device includes a first opening / closing driving device for fully opening or closing the opening / closing member. ,
2. The hopper device according to claim 1, further comprising a second opening / closing drive device opening / closing member that opens and holds the opening / closing member at an intermediate position. 3.

According to the second aspect of the present invention, the first and second opening / closing driving devices can adjust the opening degree of the opening / closing body to discharge the contents in the hopper.

According to a third aspect of the present invention, there is provided the first hopper for accumulation.
A first opening / closing body which is opened and held at an intermediate position between them is provided in addition to a fully open / closed state, a weighing hopper is provided below the first dropping port, and a weighing means and A second drop port and fully open at the second drop port;
A second opening / closing body that is fully closed is provided, the first opening / closing body is opened, and the objects contained in the collecting hopper are accommodated in the weighing hopper, and the weight of the accommodated objects is measured by the weight measuring means. After reaching the subdivision weight target value, the first
And the second opening / closing body is fully opened and discharged from the second dropping port, and weighing is performed until the integrated value of the divided weighing by the weighing hopper reaches the target gross weight. A method for repeatedly weighing a hopper device, wherein the divided weighing by the weighing hopper is such that the first opening / closing body repeatedly opens and closes fully until the integrated value approaches the target total weight, while the integrated value is A weight measuring method for a hopper device, characterized in that the first opening / closing body is fully opened and held at an intermediate position after approaching the target total weight, and then fully closed for weighing.

According to the third aspect of the present invention, the subdivided weight weighing by the weighing hopper fully opens and closes the first opening / closing body until the integrated value approaches the target total weight. When approaching the target gross weight, the opening degree of the first opening / closing body can be adjusted so that the integrated value exactly matches the target gross weight.

According to a fourth aspect of the present invention, when the integrated value approaches the target gross weight, the first opening / closing body is opened and held at an intermediate position after being fully opened. 4. The method for weighing a hopper device according to claim 3, wherein the method is a step.

According to the configuration of the fourth aspect, the opening degree of the first opening / closing body can be adjusted only at the time of the final subdivision weight measurement.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings. A stacking hopper 2 is provided on an upper part of a pillar 1 standing on all sides. This accumulation hopper 2
It comprises an inverted quadrangular pyramid-shaped hopper main body 3 and a rectangular cylinder 4 disposed on the upper part thereof. A first drop port 5 is formed in a lower portion of the hopper body 3. The first drop port 5 is provided with an opening / closing device 6 for opening and closing the first drop port 5. The opening / closing device 6 includes a first opening / closing plate 7 serving as a first opening / closing body that swings so as to close the first drop opening 5 and a first opening / closing plate for rotating the opening / closing plate 7. The first electromagnet device 8 as a driving device and the second electromagnet device 9 as a second opening / closing driving device, and the first and second reciprocating operation shafts 10 of these first and second electromagnet devices 8 and 9 There are provided first and second connecting rods 12 and 13 connecting the opening and closing plate 7 to the opening and closing plate 7. The first connecting rod 12 connected to the reciprocating operation shaft 10 of the first electromagnet device 8 is rotatably connected to one side plate 7B of the opening / closing plate 7, and is a moving direction of the first connecting rod 12. A long hole 12A is formed in the longitudinal direction, and a protrusion 7C protruding from one side plate 7B is inserted into the long hole 12A. On the other hand, the second connecting rod 13 connected to the forward / backward operation shaft 11 of the second electromagnet device 9 is rotatably connected to the other side plate 7D. Therefore, as shown in FIG. 4, when the first electromagnet device 8 and the second electromagnet device 9 are energized, the first and second connecting rods 12 and 13 are pulled and the opening / closing plate 7 can be fully opened. In this case, the projection 7C has a long hole 12
A is locked to the tip side. On the other hand, as shown in FIG.
Energizing the first electromagnet device 8 to pull the first connecting rod 12,
When the second electromagnet device 9 is de-energized, the second connecting rod 13 is pushed by a return spring (not shown).
C is pulled by the return hole (not shown) by the return spring (not shown) in a locked state at the front end side of the long hole 12A, and the opening / closing plate 7 is set to an intermediate position between the fully open state and the fully closed state by the balance of this force. it can. The setting of the intermediate position may be performed by other means. When the first electromagnet device 8 and the second electromagnet device 9 are de-energized as shown in FIG.
The second connecting rods 12 and 13 are pushed and the opening / closing plate 7 can be fully closed by the second connecting rod 13.

A weighing hopper is provided below the first drop port 5.
14 will be provided. The weighing hopper 14 is in the shape of a rectangular tube having a narrow lower portion, and has a second drop port 15 formed in the lower portion thereof. An inverted U-shaped hanging member 16 having downward members on both sides of the horizontal member is provided above the measuring hopper 14.
An L-shaped suspension member 17 suspended from the side surface of the collecting hopper 2 and having a center-facing member provided at the lower end of the downward-facing member.
Hanging member via a load cell 18 as a weight detecting means
Hang 16 The second drop port 15 is provided with an opening / closing device 19 for opening and closing the second drop port 15. The opening / closing device 19 is provided with a second opening / closing unit 15 that rotates so as to close the second drop opening 15.
A second opening / closing plate 20 serving as an opening / closing body, and a third electromagnet device 21 serving as a third driving device for rotationally driving the opening / closing plate 20
And a connecting rod 23 connecting the third reciprocating operation shaft 22 of the third electromagnet device 21 and the opening / closing plate 20. When the third electromagnet device 21 is energized, the third reciprocating operation shaft 22 is The opening / closing plate 20 is retracted to pull the opening / closing plate 20, and the opening / closing plate 20 rotates about the rotation shaft 20A as a center of rotation to completely open the second drop port 15. On the other hand, when the third electromagnet device 21 is de-energized, the third reciprocating operation shaft 22 advances by the third return spring (not shown) and the open / close plate 20 is opened.
And the opening / closing plate 20 rotates about the rotation shaft 20A as a rotation center to completely close the second drop opening 15.

Reference numeral 25 denotes a bag holding stand for holding a bag 24 for accommodating, for example, 30 kg of paddy. This stand 25 is provided with support legs 27 arranged on all sides on an installation plate 26 so as to be narrower than the column 1, and an input hopper 28 is provided above the support legs 27, and a lower The third drop port 29 has a narrow mouth shape and can be inserted into the upper opening of the bag 24.

The control device 30 includes an integrated weight display section 31 disposed on the upper right side of the front and displaying a value obtained by integrating (also referred to as accumulation or totaling) the weighed values at the time of weighing. Measured weight display that shows the weight actually measured per one time (also called one batch) based on 18.
32, from the left to the right of the middle row, a zero button 33 for forcibly setting the currently displayed weight to 0 kg, a weighing / continuation button 34 for starting weighing, and a completion button 35 for completing weighing.
And an operation button 37 of a sampling device 36 to be described later, and a stop / restart button 38 for stopping or restarting the weighing. Furthermore, on the lower left side, the display switching button 39, the weight setting button 40, the weighing method button 41, the power button
Off button 42, breed button that memorizes the varieties of paddy being measured
43, a date button 44 for storing the date of the weighing date, a slip number button 45 for storing the slip number of the measured material, and a transmission button 46 for transmitting various data to a control device such as another computer and a display device. It has. In the center of the lower row, a ten (numerical) key 47 of 0-9 and a clear key 48
And a setting key 49. Further, on the lower right side, a fixed amount button 50 for setting a subdivision weight per one time (weight per badge), a small supply button 51 for switching supply to small supply (dispensing), and a head compensation weight for total weighing are set. Button 52, model button 53, and sample button to set the maximum number of samples per consignment
It has 54.

The sampling device 36 has a through hole (not shown) penetrating the inside and outside of the collecting hopper 2 and a plate-like shutter 55 for opening and closing the through hole. And the shutter 55 is connected to the forward / backward operation shaft of the fourth electromagnet device 56.
57, a through-hole is opened by the operation of the fourth electromagnet device 56, and a part of the paddy accumulated in the accumulation hopper 2 is taken out through the pipe 58, and erected between the pair of pillars 1. The sample container 61 is mounted on a turntable 60 rotatably provided on the horizontal rod 59.

Further, a vertical conveyor 62 such as a bucket conveyor is provided at the rear of the collecting hopper 2. This vertical conveyor 62 has an input port 62A at its lower part,
A discharge port 62B facing the upper opening of the collecting hopper 2
Is provided.

The control device 30 is connected to first and second electromagnet devices 8 and 9, a load cell 18, a third electromagnet device 21, and a fourth electromagnet device 56. And the control device
Numeral 30 is configured to stop the discharge from the collecting hopper 2 when the weight in the divided state is integrated and reaches a predetermined target total weight.

Next, the operation of the above configuration will be described. For example, by throwing paddy into the inlet 62, the paddy is raised by the vertical conveyor 61, and is thrown into the collecting hopper 2 from the outlet 62B. Then, the power is turned on by the on / off button 42. Then start weighing. In actual measurement, the target total weight is generally set to 1000 kg. However, in the embodiment, the target total weight is set to 100 kg. As shown in FIG.
When weighing in small portions of 0 kg, first press the weight setting button 14 and then use the numeric keypad 47 to set the target total weight 1
The number 100 corresponding to 00 kg is input, and the setting button 49 is pressed to confirm the input. Then, the user presses the fixed amount button 50, inputs the number 30 corresponding to the subdivision target weight of 30 kg with the ten keys 47, and presses the setting button 49 to confirm the input. Next, the supply is switched to the small supply (dispensing) at the final weighing corresponding to the fourth weighing, that is, the first opening / closing plate 7 can be set at an intermediate position between full open and full close. Set weight at that time, for example, load cell 18
In order to perform such an operation when the vehicle detects 6 kg, the number 6 corresponding to the small supply target weight 6 kg is required.
Is input, and the setting button 49 is pressed to confirm the input.

By such an input operation, the control device 30 repeats subdivision weighing of 30 kg each three times with a target total weight of 100 kg, and in the final fourth weighing, the small supply (dispensing) set target value of 6 kg is set. When the weighing is performed, small supply (dispensing), that is, switching is performed so that the first opening / closing plate 7 is opened to be smaller than the full open state, and it is calculated that the integrated weight weighs 100 kg and ends. Therefore, as shown in FIG. 9, a container (not shown) such as a bag capable of accommodating 100 kg of paddy is installed below the second dropout 15 instead of the bag 24 and the stand 25 in advance, and then the control device is controlled. Activate 30. In FIG. 9, the vertical axis indicates the weighing weight, the horizontal axis indicates the number of weighing steps, the solid line in the table indicates the weighing weight in each weighing step (each badge), and the one-dot chain line indicates the cumulative (cumulative or total). )
Indicates weight. In the first measurement, the second opening / closing plate 20 is closed in advance, and the first opening / closing plate 7 is fully opened, so that the paddy of the collecting hopper 2 is discharged from the first dropping port 5 to the weighing hopper 14. Is dropped and housed. This weighing hopper
The load cell 18 detects the weight to 14, and when 30 kg is detected, the control device 30 puts the first electromagnet device 8 and the second electromagnet device 9 into a non-energized state and brings them into a fully closed state. However, since the time when 30 kg is detected and the time when the first opening / closing plate 7 is fully closed do not match, that is, a time lag occurs between the two, the 30 kg from the first drop 5 to the weighing hopper 14 exceeds 30 kg. For example, 31 kg of paddy is stored. At the same time, the weight is displayed on the integrated weight display section 31 and the measured weight display section 32. Then, the second opening / closing plate 20 is fully opened and 3
1 kg of paddy is stored in the 100 kg container as the first measurement. After a predetermined time, the second opening / closing plate 20 is fully closed, and when the first opening / closing plate 7 is fully opened again, for example, 31 kg of paddy exceeding 30 kg is stored again into the measuring hopper 14 from the first drop port 5. Thus, the first opening / closing plate 7 is fully closed. By the second weighing, that is, for example, 62 kg is displayed on the integrated weight display section 31 and 31 kg is displayed on the measured weight display section 32.

When the second opening / closing plate 20 is fully opened,
g of paddy is stored in the 100 kg container as the second measurement. Similarly, the third measurement is performed, and for example, 93 kg of paddy is accommodated in the 100 kg container. In the fourth weighing of the final weighing, the second
Is closed, and when the first opening / closing plate 7 is fully opened, the paddy of the collecting hopper 2 is dropped and stored in the measuring hopper 14 from the first dropping port 5. The load cell 18 detects the weight of the weighing hopper 14, and upon detecting a preset small supply (dispensing) set target value of 6 kg, the control device 30 turns on the first electromagnet device 8 as described above. While the first connecting rod 12 is pulled, the second electromagnet device 9 is de-energized and the second connecting rod 13 is pushed. As a result, the opening / closing plate 7 is in the middle between the fully open state and the fully closed state. As a result, the amount per unit time of falling and stored in the weighing hopper 14 from the first dropping port 5 is reduced, and a small supply (dispensing) state is achieved. Then, in this small supply (dispensing) state, the load cell 18 is 7 kg.
Is detected, that is, when the integrated weight is detected to be 100 kg, the first opening and closing plate 7 is fully closed by the control device 30 and the second opening and closing plate 20 is fully opened, and the remaining 7 kg is stored in the container. The weighing of 100 kg of the total weight is completed.

On the other hand, paddy is collected from
In the case of packing in a 0 kg bag, the bag 24 is set on the stand 25 in advance as shown in FIG. Next, the weight setting button 40 of the control device 30 is pressed, and the target weight 30
Enter the number 30 corresponding to kg, and then press the setting button 49
Is pressed to confirm the input. Next, the fixed amount button 50 is pressed, and the numeral 30 corresponding to the target weight
Is input, and the setting button 49 is pressed to confirm the input. Next, the small supply button 51 is pressed to switch the supply to small supply (dispensing) at the time of weighing, that is, the first opening / closing plate 7 can be set at an intermediate position between full open and full close. In order to perform such an operation when the set amount at that time, for example, the load cell 18 detects 28 kg, enter the number 28 corresponding to the small supply target weight 28 kg and press the setting button 49 to Confirm the input.

By such an input operation, the controller 30 sets the target weight to 30 kg once, and opens the first opening / closing plate 7 fully until the load cell 18 detects 28 kg as shown in FIG. The second opening / closing plate 20 is housed in the weighing hopper 14 in a fully closed state, and the load cell 18 is 28 kg.
Is detected, the first opening / closing plate 7 is set at an intermediate position between the fully open state and the fully closed state, and the rice is continuously stored in the measuring hopper 14 in the small supply (dispensing) state. After this, the load cell 18
When 0 is detected, the first opening / closing plate 7 is fully closed. afterwards,
The second opening / closing body 20 is fully opened and the paddy is stored in the bag 24.

As described above, in the above-mentioned embodiment, in the hopper device provided with the opening / closing device 6 for opening / closing the first drop port 5 provided below the collecting hopper 2, the first drop port 5 can be opened / closed. A first opening / closing plate 7 and the first opening / closing plate 7
The first electromagnet device 8 as a drive device and the second electromagnet device 9 as a second drive device for opening and closing the first drop port 5 in addition to the full closing and full opening of the first drop port 5 at an intermediate position between them.
Since the first drop 5 can be fully opened, fully closed and at an intermediate position between them, the amount of paddy discharged per unit time from the first drop 5 can be adjusted. , Can discharge the exact amount.

Further, the first opening / closing plate 7 is provided so as to swing and open and close at the first drop opening 5, and is directly connected to the first opening / closing plate 7 via a second connecting rod 13. Open / close plate 7
A second electromagnet device 9 for fully opening or fully closing the
With the first electromagnet device 8 connected via the first connecting rod 12 having the elongated hole 12A in which C can be locked, the first opening / closing plate 7 can be fully opened, fully closed, and the like. Opening at the intermediate position becomes possible, the amount of paddy discharged per unit time from the first drop 5 can be adjusted, and one first opening / closing plate 7 itself is fully opened, fully closed and its intermediate position. Thus, the area around the first falling port 5 can be formed compactly.

In addition, the first opening / closing plate 7 can be fully opened, fully closed and at an intermediate position by a combination of the first and second electromagnet devices 8, 9, so that the operation can be performed reliably. , And can be manufactured at low cost.

Further, in the weighing method, a first opening / closing plate 7 which is opened and held at an intermediate position between the first opening 5 of the stacking hopper 2 and the first opening 5 is provided in addition to the first opening and closing.
A weighing hopper 14 is provided below the falling port 5 of the first embodiment, and the weighing hopper 14 is provided with a load cell 18 and a second dropping port 15, and a second opening / closing plate 20 which is fully opened and fully closed is provided at the second dropping port 15. The first opening / closing plate 7 is opened to store the paddy in the stacking hopper 2 in the weighing hopper 14, and the weight of the stored paddy reaches the target subdivision weight of, for example, 30 kg by the load cell 18. After that, the first opening / closing plate 7
And the second opening / closing plate 20 is fully opened so that the second
Of the weighing hopper 14
Is a weighing method of a hopper device that repeats weighing until the integrated value of the divided weighing by the target gross weight such as 100 kg is obtained. Until it approaches, the first opening / closing plate 7 repeats full opening and full closing. On the other hand, when the integrated value approaches the target total weight, the first opening / closing body 7 is opened and held at an intermediate position after full opening. In the first to third subdivision weighing of, for example, 30 kg, the first opening / closing plate 7 is repeatedly opened and closed to perform weighing. On the other hand, at the time of the fourth weighing, after the first opening / closing plate 7 is fully opened and weighing is performed, when a preset small supply (dispensing) set target value is reached,
The first opening / closing plate 7 is weighed up to the target total weight while adjusting the weighing by reducing the opening degree of the first opening / closing plate 7 to reduce the discharge amount per unit time. Is adjusted at the time of the final measurement, so that there is no time loss associated with the adjustment by the first opening / closing plate 7 except for the final measurement, and the total time required for the measurement can be reduced. In the case where only 30 kg is weighed, for example, the adjustment by the first opening / closing plate 7 can be performed at the time of weighing.
In each measurement, accurate measurement can be performed.

Further, when the integrated value approaches the target total weight of, for example, 100 kg, the first opening / closing plate 7 is fully opened, held open at an intermediate position, and then fully closed. In the process, the small supply (dispensing) only needs to be performed once before the weighing reaches the target total weight. Therefore, the number of times accompanying the adjustment by the first opening / closing plate 7 is determined in the final process. Can be done only once
The total time required for weighing can be minimized.

Further, in the embodiment, in the control device 30,
Since the target total weight, the subdivision weight target value, and the small supply (dispensing) setting target value can be set freely, any weighing can be dealt with. In addition, the operation is performed in the case of total (cumulative or total) weighing and in the case of single (one badge) weighing.
Since the same operation is performed by the small supply button 50 and the small supply button 51, the operability is also excellent.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, although the embodiment uses an electromagnet device, the first and second opening / closing members may be operated by a driving device such as a hydraulic or pneumatic cylinder device or a motor.

[0034]

According to a first aspect of the present invention, there is provided a hopper device provided with an opening / closing device for opening and closing a drop port provided at a lower portion of a hopper, and an opening / closing member capable of opening / closing the drop port, and connecting the opening / closing member to the drop port. And a drive device for opening and holding at an intermediate position between them, in addition to the fully closed and fully opened positions of the hopper. Can be discharged.

According to the second aspect of the present invention, the opening / closing member is swingably provided at the drop opening so as to be freely opened and closed, and the driving device is a first opening / closing driving device for fully opening or closing the opening / closing member. The hopper device according to claim 1, further comprising: a second opening / closing drive device that opens and holds the opening / closing body at an intermediate position, wherein the opening / closing body is operated by the first and second driving devices. By adjusting the degree of opening of the dropper, the contents in the hopper can be accurately discharged, and the size can be reduced.

According to a third aspect of the present invention, there is provided the first hopper for accumulation.
A first opening / closing body which is opened and held at an intermediate position between them is provided in addition to a fully open / closed state, a weighing hopper is provided below the first dropping port, and a weighing means and A second drop port and fully open at the second drop port;
A second opening / closing body that is fully closed is provided, the first opening / closing body is opened, and the objects contained in the collecting hopper are accommodated in the weighing hopper, and the weight of the accommodated objects is measured by the weight measuring means. After reaching the subdivision weight target value, the first
And the second opening / closing body is fully opened and discharged from the second dropping port, and weighing is performed until the integrated value of the divided weighing by the weighing hopper reaches the target gross weight. A method for repeatedly weighing a hopper device, wherein the divided weighing by the weighing hopper is such that the first opening / closing body repeatedly opens and closes fully until the integrated value approaches the target total weight, while the integrated value is When the first opening / closing body approaches the target total weight, the first opening / closing body is opened and held at an intermediate position after being fully opened, and thereafter, is fully closed and weighed. The weight of the contents is weighed, and the first opening / closing body is repeatedly opened and closed until the integrated weight of the divided weight approaches the target total weight, while the integrated weight of the divided weight is the target weight. Gross weight When approaching, the first opening / closing body is opened and held at the intermediate position between the fully opened state and the fully opened state to be in a small supply (dispensing) state, and the discharge per unit time is adjusted to reach the target total weight. Since the first opening / closing body does not reach the intermediate position on the way, the time corresponding to the first opening / closing body is reduced, and as a result, the total time required for weighing can be reduced.

In the present invention, when the integrated value approaches the target gross weight, the first opening / closing body is opened and held at an intermediate position after being fully opened. 4. The method for weighing a hopper device according to claim 3, wherein the small supply (dispensing) state is performed only once in the final step of the weighing. And the total time of weighing can be minimized.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the present invention.

FIG. 2 is a side view showing one embodiment of the present invention.

FIG. 3 is a perspective view of a main part showing a fully closed state of an opening / closing plate according to an embodiment of the present invention.

FIG. 4 is a perspective view of a main part showing a fully opened state of an opening / closing plate according to an embodiment of the present invention.

FIG. 5 is a perspective view of a main part showing an intermediate state of an opening / closing plate according to an embodiment of the present invention.

FIG. 6 is a front view of a control device showing one embodiment of the present invention.

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

FIG. 8 is a flowchart showing one embodiment of the present invention.

FIG. 9 is a graph at the time of integrated weighing showing one embodiment of the present invention.

FIG. 10 is a graph showing one example of the present invention at the time of single measurement.

[Explanation of symbols]

 2 Stacking hopper 5 First dropping port 7 First opening / closing plate (Opening / closing body) 8 First electromagnet device (First driving device) 9 Second electromagnet device (Second driving device) 14 Weighing hopper 15 Second drop port 17 Load cell (weight measuring means) 20 Second opening / closing plate (opening / closing body)

Claims (4)

[Claims] 1. A hopper device provided with an opening / closing device at a drop port provided at a lower portion of a hopper, and an opening / closing body capable of opening / closing the drop port, and the opening / closing body being not only fully closed and fully opened of the drop port, but also And a drive device for opening and holding at an intermediate position of the hopper. 2. The opening / closing body is swingably mounted on the drop opening so as to be openable and closable, and the driving device includes a first opening / closing driving device for fully opening or closing the opening / closing body, and the opening / closing body. The hopper device according to claim 1, further comprising a second opening / closing drive device that is opened and held at the intermediate position. 3. A full opening at a first drop opening of an accumulation hopper,
In addition to the fully closed state, a first opening / closing body which is opened and held at an intermediate position between them is provided, a weighing hopper is provided below the first dropping port, and the weighing means and the second dropping port are provided in the weighing hopper. A second opening / closing body that is fully opened and fully closed at the second drop opening, and the first opening / closing body is opened to accommodate the object in the stacking hopper in the weighing hopper; After the weight of the stored object reaches the subdivision weight target value by the weight measuring means, the first opening / closing body is closed, and the second opening / closing body is fully opened to be discharged from the second drop port. And a weighing method for a hopper device that repeats weighing until the integrated value of the divided weighing by the weighing hopper reaches the target total weight, wherein the divided weight weighing by the weighing hopper is such that the integrated value is the target total weight. Before approaching weight The first opening / closing body repeats full opening and full closing. On the other hand, when the integrated value approaches the target gross weight, the first opening / closing body is opened and held at an intermediate position after full opening, and thereafter fully closed and weighed. Weighing a hopper device. 4. When the integrated value approaches the target gross weight, the first opening / closing body is fully opened and then held open at an intermediate position, and then the step of fully closing is a final step of weighing. The method for measuring the weight of a hopper device according to claim 3, wherein