JP2638742B2 - Quantitative material supply method and device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to foodstuffs such as rice for serving on a lunch box, a bowl, etc.
Alternatively, the present invention relates to a method and an apparatus for supplying fixed amounts of various materials such as fertilizer and humus.

[0002]

2. Description of the Related Art Conventionally, rice chunks and the like for processing into rice, seaweed rolls and the like have been cut from continuously supplied rice and supplied as rice chunks. Conventionally, there is an apparatus shown in FIG. The apparatus supplies the rice 21 in the hopper 20 with the supply roller 2
2, 22 ′, the rice is fed to the rice discharge conveyor 23 below the rollers at a constant thickness, and the rice conveyed by the conveyor 23 is cut at regular intervals by a cutter 24 into rice chunks 25,
In a subsequent process, ingredients are put into the rice chunk 25 to make rice-grinding and the like.

[0003]

However, in the above-mentioned conventional apparatus, rice is not weighed, and the feed amount of the conveyor 23 is set in advance by an operator. However, it was difficult to supply a certain amount of rice chunks. In addition, food materials such as rice evaporate over time and become harder and more sticky, and their physical properties change every moment. The weight of the rice chunk changes with the lapse of time, and the weight of the rice chunk changes, resulting in defective products. Further, when a defective product appears in several pieces during production due to a sudden trouble of the machine and the like, and then recovers, there is a defect that the worker does not notice and the defective product is flushed as it is. . In addition, in the above-described conventional apparatus, the weight of the rice chunk (the feed amount of the conveyor 23) is set in consideration of the above-described various drawbacks. And the production efficiency is not good.

In view of the above-mentioned drawbacks of the conventional apparatus, the present invention controls the measurement of materials such as food and other fertilizers, and can perform quick and accurate correction even if the physical properties of the same material change, thereby achieving high precision. To provide a fixed amount material supply method and apparatus capable of performing high-speed and high-speed metering control.

[0005]

In order to solve the above-mentioned problems, the present invention firstly supplies a belt-like material from a material supply port to an unloading conveyor, and intermittently transfers the material continuously conveyed by the conveyor. A method in which a mass of material is cut by an operating cutter, and then the mass of material is continuously weighed one by one by a weighing conveyor. Are sequentially measured, and the difference between the target value of the material block and the above average value is obtained, and it is determined whether or not the difference is within the allowable range of the target value on the plus side or the minus side. Only when the difference is greater than or equal to the plus or minus deviation a predetermined number of times, the feed amount of the carry-out conveyor is decreased or increased, and Of the material mass to measure the value The deviation of the measured value, the target value, the average value on the plus side and the minus side, and the number of times the state in which the difference is equal to or larger than the plus side or the minus side deviation can be preset can be set. 3. The method for supplying a fixed amount of material according to item 1, and thirdly, instead of decreasing or increasing the feed amount of the unloading conveyor, reducing or increasing the feeding amount of the band-shaped material supplied from the material supply port to the unloading conveyor. The method for supplying a fixed quantity material according to the first aspect,
A feeder for a continuous feed material that feeds a material from a material feed port to an unloading conveyor, an intermittent operation cutter that cuts the material continuously transported by the unloading conveyor at a predetermined interval into a material lump, A weighing conveyor for continuously weighing the lumps one by one, comprising: an average value measuring means for sequentially measuring an average value of the weighing values based on a plurality of weighing values of the material lumps; And an information processing device for obtaining a difference between the target value of the material mass and the average value, and controlling a feed amount of the continuous material based on the difference, and feeding the unloading conveyor by a correction command signal from the information processing device. And an unloading conveyor feed amount control means for controlling the amount, wherein the information processing device is configured to determine whether the difference is greater than or equal to a deviation allowed on the plus side or the minus side with respect to the target value. Judgment means and A number discriminating means for discriminating whether or not a state in which the difference is equal to or more than a deviation on the plus side or a minus side has continued for a predetermined number of times; And a signal sending means for sending the correction command signal of the above. 5. A fourth aspect of the present invention, wherein the feeding device is formed by a material feeding roller. Sixth, a material supply roller rotation amount control means is provided instead of the unloading conveyor feed amount control means, and the rotation amount of the material supply roller is decreased or increased based on the correction command signal. The quantitative material supply device according to the fifth aspect, characterized in that the material is a food material. 7. The quantitative material according to any one of claims 1 to 6, wherein the material is a food material. The method or apparatus for feeding, eighth, the material is rice, and the method or apparatus for feeding fixed quantity material according to any one of claims 1 to 6, ninth, wherein the material is fertilizer. The method or apparatus according to any one of claims 1 to 6, wherein the material is humus. (7) The method according to any one of (1) to (6), wherein the material is humus. It is composed of a method and an apparatus.

[0006]

[Function] A material is supplied in a belt shape from a material supply port to an unloading conveyor, and the material continuously conveyed by the conveyor is cut into a material mass by an intermittent operation cutter, and then the material mass is transferred to a weighing conveyor. Then, the mass of the material mass is continuously measured for each piece by the same measuring conveyor. The average value A of the measured values is sequentially measured based on a plurality of measured values (for example, two measured values) of the material mass, and the difference (TA, T−A, T) between the target value T of the material mass and the average value A is measured. a-T) to seek, the difference is equal to or a deviation D ₂ than is allowed by the deviation D ₁ or minus side is allowed on the positive side with respect to the target value T. And when the state where the difference is for example a positive deviation D ₁ or a predetermined number of times (e.g., twice) was continuously decreases the feed amount of the carry-out conveyor, a control such that the weight of the mass of material becomes the target value Do. The state where the above difference is equal to or more than the negative side deviation D ₂ is determined a predetermined number of times (for example, 2
Times), the feed amount of the unloading conveyor is increased, and control is performed so that the weight of the material block becomes a target value.

[0007] The number of material blocks to be measured for measuring the average value A (two in the above case), the target value T, the deviation (D ₁ or D ₂ ) on the positive and negative sides of the average value, and the deviation The number of times (in the above case, two times) that the state where the deviation is equal to or more than the deviation on the plus side or the minus side can be previously set to an arbitrary value by the setting means.

[0008] Instead of decreasing or increasing the feed amount of the discharge conveyor, the feed amount of the material supplied from the material supply port to the discharge conveyor is reduced or increased so that the weight of the material becomes the target value. Control can be performed.

A material is supplied from a material supply port to a carry-out conveyor by a supply device, and the material continuously conveyed by the carry-out conveyor is cut at predetermined intervals by an intermittent cutter to form a material lump. Weigh continuously by weighing conveyor every time. The average value of the same weighed value is sequentially measured by the average value measuring means based on the plurality of weighed values of the material lump, and the information processing device determines whether the continuous material A correction command signal for controlling the feed amount is sent to the carry-out conveyor feed amount control means.
The information processing apparatus first determines whether or not the difference is greater than or equal to a deviation allowed on the plus side or the minus side with respect to the target value by deviation determination means. It is determined whether or not the state in which the deviation is equal to or greater than the deviation on the negative side or the negative side has continued for a predetermined number of times. The above-mentioned correction command signal for increasing is sent to the carry-out conveyor feed amount control means.

A material feed roller rotation amount control means is provided in place of the carry-out conveyor feed amount control means, and the material feed roller rotation amount is reduced or increased based on the correction command signal to set the material weighing value to a target value. It can be controlled to be a value.

[0011]

FIG. 1 is a block diagram showing one embodiment of a method and apparatus for supplying a fixed amount of material according to the present invention. In the present embodiment, the case where rice is used as a material will be described.However, the present invention is not limited to the rice, and other ingredients, such as anko, minced kneaded food, fish meal, and the like, as well as fertilizers other than the ingredients, compost, It can be applied to various materials such as mulch and earth for worm culture.

In FIG. 1, reference numeral 1 denotes a hopper provided in a machine frame, into which rice 2 is inserted, and a rice supply port 1a provided below. Reference numeral 3 denotes a rice carry-out conveyor (carry-out conveyor) provided directly below the rice supply port (material supply port) 1a with an interval therebetween, and an upper transition portion 3 'of a conveyor belt is disposed opposite to the supply port 1a. It is driven by the drive motor 4 and is rotationally driven in the direction of arrow A. Reference numeral 3a denotes a conveyor belt guide support plate disposed on the back side of the upper transition portion 3 'of the conveyor belt.

Reference numerals 5a and 5b denote a pair of rice supply rollers (material supply rollers) provided between the supply port 1a and the upper transition portion 3 ', which are rotationally driven in opposite directions by a drive motor 4'. The rice 2 in the hopper 1 is continuously supplied to the upper transition portion 3 'of the lower conveyor 3 in a belt-like shape with a constant thickness, and the thickness of the continuous rice 2' is regulated by the rollers 5a and 5b. It constitutes a device (supply device). The continuous rice 2 'supplied to the transition section 3' is continuously transferred on the conveyor 3 in the direction of arrow A.

Reference numeral 6 denotes an intermittent operation cutter provided above the end of the conveyor 3 near the end of the upper transition portion 3 '. The continuous rice 2 ′ is cut at predetermined intervals to form rice chunks 2 ″. Specifically, when the rice unloading conveyor 3 is fed by the drive motor 4 in the direction of arrow A and stopped. And the above cutter 6
Is cut in conjunction with the stop to cut the continuous rice 2 ′ to form a rice chunk 2 ″, and when the conveyor 3 is again fed in the same direction by the drive motor 4 in the same direction and stopped, cutting is performed. Is continuously performed, and the rice lump 2 ″ is continuously formed by the operation. Therefore, as described later, the weight of the rice chunk 2 ″ can be controlled to increase or decrease by increasing or decreasing the feed amount of the carry-out conveyor 3.

Reference numeral 7 denotes a weight weighing conveyor provided continuously from the end of the rice carry-out conveyor 3, and a measuring instrument 7 'for measuring the weight of the rice chunk 2 "moving upward on the back of the conveyor belt of the conveyor. Are arranged.

Reference numeral 8 denotes a transport conveyor provided continuously from the end of the weighing conveyor 7, and the weighed rice chunk 2 ″ is transported from the weighing conveyor 7 to the conveyor 8. The rice chunk 2 ″ moving on the conveyor 8 is pushed out in a direction perpendicular to the traveling direction of the conveyor 8, and a discharge unit 10 provided adjacent to the conveyor 8.
Sorting air cylinder 9 capable of discharging rice lumps 2 "
Is provided. The cylinder 9 is provided with the measuring instrument 7 '
Is driven by the cylinder driving unit 9 ′ based on the measurement value of the above, so that only the defective rice block 2 ″ having a weight exceeding the allowable range can be discharged to the discharge unit 10. In the allowable range, The rice block 2 ″ is transported without being discharged by the air cylinder 9, and proceeds to the next step as it is.

Numeral 11 denotes an average value measuring section (mean value measuring means) for sequentially measuring N average values of the weighing data for each piece of rice from the measuring device 7 '. and has an average value of the measured data N ₂ initially input to then enter the measurement data _{N 1 A1 (= (N 1} + N 2) / 2)
The output when measuring the same measurement to the information processing apparatus 13, then the average value _{A2 (= (N 2 + N} 3) / 2) between the measurement data N ₃ which then enter the measured data N ₂ measures the The measurement of the procedure (hereinafter, the average value of N ₃ and N ₄ , the average value of N ₄ and N ₅ ) is sequentially repeated.

Numeral 12 is a means for setting various reference data for performing processing in the information processing apparatus 13. The target value T [g] of the weight of the rice block and the negative value of the average value allowed from the target value are set.
The side deviation D ₁ [g], the + side deviation D ₂ [g] of the average value allowed from the target value, and the number of times V [times] where the data of the deviation D ₁ or D ₂ or more are allowed can be set. ing.

Reference numeral 13 denotes the information processing device constituted by a well-known microcomputer having a CPU and the like, and a carry-out conveyor feed amount control device 14 or a rice feed roller rotation amount control device 15 in accordance with a predetermined procedure shown in FIG. Is controlled to control the feed amount or the rotation amount of the drive motor 4 or 4 ′ so that the measured value of the rice block becomes the target value T set by the setting means 12.

[0020] Specifically, the difference between the target value T and the average value A is - when it becomes the side of the deviation D ₁ or more, i.e., continuous V times the state of the T-A ≧ D ₁ · · · · · when, by controlling the drive motor 4 or 4 'performs the + correction as rice supply amount is increased, when the difference between the target value T and the average value a becomes a positive side of the deviation D ₂ or more, That is, when the state of A−T ≧ D ₂ ... Has been repeated V times, the drive motor 4 or 4 ′ is controlled to make a correction so as to reduce the rice supply amount. I have.

Reference numeral 14 denotes a carry-out conveyor feed amount control device for controlling the feed amount of the drive motor 4 by a pulse encoder or the like based on a correction command signal from the information processing device. Is increased or decreased.

Reference numeral 15 denotes a rice supply roller rotation amount control device which controls the rotation amount (rotation angle) of the drive motor 4 'based on a correction command signal from the information processing device 13 by a pulse encoder or the like. The amount of the rice supplied to the conveyor 3 is controlled by controlling the rotation amount of the rice supply rollers 5a and 5b.

The present invention is configured as described above. Next, the operation thereof will be described with reference to the flowchart of FIG. First, the setting unit 12 sets necessary setting values before operating the apparatus. In this embodiment, the target value T is set to 9
It is assumed that 5 g, the negative deviation D ₁ is 2 g, the positive deviation D ₂ is 2 g, and the number of times V in which data larger than the deviation is permitted is set to two. Therefore, in this case, if the average value A = 97 g or more is continuous twice or the average value A = 93 g or less is continuous twice, the minus correction or the plus correction is performed.

Thereafter, when a start button (not shown) of the apparatus is pressed, the rice supply rollers 5a and 5b and the rice transport conveyor 3 are driven, and the rice of a constant thickness is supplied from the rice supply port 1a to the rice supply rollers 5a and 5b. Is supplied to the rice transport conveyor 3 below, and the rice is transported on the conveyor 3 in the direction of arrow A. In addition, the intermittent operation cutter 6 is intermittently driven in accordance with the stop of the transport conveyor 3, and cuts the rice at predetermined intervals. Then, the cut rice chunks 2 ″ are conveyed onto the weighing conveyor 7, where they are weighed by the measuring device 7 ′, and the weighed values are sequentially input to the average value measuring section 11 one by one.

The average value measuring section 11 sequentially measures two average values of the currently input measurement value and the immediately preceding measurement value, and sequentially outputs the average value data A to the information processing device 13. . In the information processing apparatus 13 (see FIG. 2), when the average value A (in this case, 96 g within the deviation range) is input (P1), the average value A (96 g) and the target value T
(95 g) and the differences S ₁ and S ₂ are measured (P2, equation,
reference). T−A = S ₁ ( ₋₁ g) AT−S ₂ (+1 g) Then, it is determined whether or not S ₁ is equal to or more than the −side deviation D ₁ (2 g) (P3). ). In this case, S ₁ since there are D ₁ not more than a -1g, then at P8 said S ₂ is +
Determining whether a side deviation D ₂ or more. Again,
Since S ₂ is not greater than D _2, that is, since the average value A is within the allowable range, the process returns to P 1 again and performs the same operation for the next average value. As described above, when the average value is within the allowable range, the rice chunk 2 ″ is sequentially transferred from the weighing conveyor 7 to the transport conveyor 8, and the defective selection air cylinder 9 is not operated, and the rice chunk 2 ″ is It is conveyed from the conveyor 8 to the next processing step.

Next, assuming that the average value A (92 g) outside the allowable range is input to the information processing device 13 (P1), the average value A (92g) and the target value T (95g)
Then, the differences S ₁ and S ₂ are measured (see P2, Equations). T−A = S ₁ (+3 g) AT−S ₂ (−3 g) Then, it is determined whether or not S ₁ is equal to or more than the −side deviation D ₁ (2 g) (P3). ). In this case, S ₁ is a + 3 g - side deviation D ₁ or more, i.e. - so unacceptable side, then at P4 this state V times (2 times) to determine whether the continuous (P4) . At this time, since the above state has not been continued twice yet, the flow returns to P1 again, and the same operation is repeated with the next average value A.

Here, assuming that the next average value A is again 91 g outside the negative side allowable range, S ₁ = + 4 g is obtained from the formula, and the condition of P3 is satisfied. _It is determined whether _one or more states have continued twice. In this case - because the side deviation D ₁ or more is that two consecutive, to satisfy the conditions of P4, so that the P5 + correction.

That is, the information processing device 13 outputs a correction command signal for increasing the conveyor feed amount to the conveyor feed amount control device 14. The control device 14 increases the feed amount of the drive motor 4 based on the input of the command signal, and as a result, the feed amount of the continuous rice 2 'increases. That is,
Since the carry-out conveyor 3 sends out and stops more continuous rice and is cut by the cutter 6, the correction is performed in a direction in which the weight of the rice chunk 2 ″ increases. Thereafter, V is reset at P6, and V is restarted from 0.

On the other hand, the three rice chunks from which the average values of the above-mentioned 92 g and 91 g were calculated, each time the measured value exceeds the minus side deviation, the cylinder driving means 9 ′ is conveyed to the conveyor 8 each time. Thus, it is pushed out by the defective sorting air cylinder 9 driven, and each is discharged to the discharge part 10 of defective rice chunks.

Next, assuming that the average value A (98 g) outside the + side allowable range is input to the information processing apparatus 13 (P1),
The differences S ₁ and S ₂ between the average value A (98 g) and the target value T (95 g) are measured (see P2, equation). T−A = S ₁ (−3 g) AT−S ₂ (+3 g) Then, it is determined whether or not S ₁ is equal to or more than the −side deviation D ₁ (+2 g) (P 3). ). In this case, S ₁ since there are D ₁ not more than a 3 g, then S ₂ determines whether or not the + side deviation above (P8). In this case S ₂ is + 3 g in D such ₂ (2 g) above, this state is determined whether two successive (P9). In this case, the above state is still 2
Since it is not consecutive times, it returns to P1 again and repeats the same operation with the next average value data A.

Here, assuming that the next average value data is again 99 g outside the allowable range, S ₂ = + 4 g is obtained from the equation, which satisfies the condition of P8.
Since the state having the side deviation D ₂ or more has continued twice, P
At 10, a correction will be made.

Specifically, the information processing device 13 outputs a correction command signal to the conveyor feed amount control device 14 to reduce the conveyor feed amount. The control device 14 reduces the feed amount of the drive motor 4 based on the input of the command signal, and as a result, the feed amount of the rice 2 decreases. That is, since the conveyor 3 sends out less continuous rice than before and stops, and then cuts by the cutter 6, the correction is performed in the direction in which the weight of the rice chunk 2 ″ decreases.
After performing the above-mentioned -correction, V is reset at P11, and the operation is started again from 0 times.

On the other hand, the three rice chunks from which the average value of the above 98 g and the above 99 g were calculated, each time the measured value exceeds the + side deviation, the cylinder driving means 9 ′ is set on the conveyor 8 each time. Thus, it is pushed out by the defective sorting air cylinder 9 driven, and each is discharged to the discharge part 10 of defective rice chunks.

When the average value A is out of the allowable range,
That is, if the state of P3 or P8 is only one time and does not continue twice, the process returns from P4 or P9 to P1 again, and the same processing is performed based on the next average value. That is, in this case, the above-described + correction or − correction is not performed.

In the above embodiment, the feed amount of the drive motor 4 of the carry-out conveyor 3 is controlled by the carry-out conveyor feed amount control device 14 according to the correction command signal. The rotation amount (rotation angle) of the rice supply rollers 5a and 5b may be controlled by increasing or decreasing the rotation amount of the drive motor 4 'by using 15. In this case, the weight of the rice chunk 2 ″ can be controlled by increasing / decreasing the rotation amount to increase / decrease the feed amount (supply amount) of the rice to the carry-out conveyor 3.

In the above embodiment, the deviation D ₁ on the minus side is used.
And the deviation D ₂ on the plus side were set to the same value (2 g),
The set value of the deviation between the plus side and the minus side may be different.

As described above, in the present embodiment, since the number of pieces of the rice chunk 2 ″ required for performing the correction can be small, the correction is quickly made in response to the change in the measured value of the rice chunk 2 ″. be able to. When N = 2 and V = 2 are set as in the above-described embodiment, the number of measured rice chunks 2 ″ required for correction is 3
It becomes individual and quick response is possible.

In addition, since the number of measured data is small, even if data (weighing value) greatly deviates from the allowable value, the data is not smoothed by averaging with other data close to the allowable value. Correction can be immediately performed on the defective data.

Further, since the correction is made when the average value equal to or more than the + side or − side deviation is repeated twice, it is possible to detect whether the amount of rice is increasing or decreasing. Correction or correction can be performed appropriately and promptly according to the tendency, and the defectively discharged rice chunk does not appear continuously, and accurate weighing becomes possible. In this embodiment, it is also possible to realize the measurement of the rice chunk 1 [times / second].
In FIG. 1, reference numeral 16 denotes a rice level detector.

Therefore, according to the present invention, very fast and accurate feedback control can be performed, and high-speed and high-precision weighing and sorting can be performed. Further, N,
Since T, D ₁ , D ₂ , and V can be set freely, optimal conditions can be set according to the state of the rice.

[0041]

As described above, according to the present invention, materials such as foodstuffs can be measured, and the feed amount of the conveyor can be controlled based on the measured values. Can be supplied.

Further, since the number of measured material chunks necessary for performing the correction can be small, the correction can be quickly performed in response to a change in the measured value of the material chunk.

Further, since the correction is performed when the average value equal to or more than the + side or − side deviation is repeated a plurality of times (at least twice), the measured value of the material tends to increase or decrease. It is possible to capture whether or not there is, and to appropriately and quickly perform the -correction or the + correction according to the tendency.

Therefore, according to the present invention, very fast and accurate feedback control can be performed, high-speed and high-precision weighing control can be performed, and production efficiency can be drastically improved. In addition, since the target value, the deviation, and the like can be set freely, optimum conditions can be set according to the state of the material.

[Brief description of the drawings]

FIG. 1 is a view showing a structure and an electric block of an embodiment of a quantitative material supply method and apparatus according to the present invention.

FIG. 2 is a flowchart showing an operation procedure of the method and the apparatus.

FIG. 3 is a functional block diagram of an information processing apparatus of the method and the apparatus.

FIG. 4 is an explanatory view of a conventional fixed quantity rice supply device.

[Explanation of symbols]

 1a rice supply port 2 "rice block 3 rice carry-out conveyor 5a, 5b rice supply roller 6 intermittent operation cutter 7 weight weighing conveyor 11 average value measuring unit 13 information processing device 14 carry-out conveyor feed amount control device 15 rice supply roller rotation amount control device

Claims (10)

(57) [Claims] 1. A material is supplied in a belt shape from a material supply port to an unloading conveyor, and the material continuously conveyed by the conveyor is cut into a material mass by an intermittent cutter, and thereafter, the material mass is weighed by a weighing conveyor. Is a method of continuously weighing one piece at a time based on a plurality of weighed values of a mass of material, sequentially measuring an average value of the same weighed value, and calculating a difference between a target value of the mass of material and the above average value. Then, it is determined whether or not the difference is within a range of an allowable deviation on the plus side or the minus side with respect to the target value. A quantitative material supply method characterized by decreasing or increasing the feed amount of a carry-out conveyor only when continuous. 2. The number of measurement of the material mass for measuring the average value, the target value, the deviation of the average value on the plus side and the minus side,
2. The quantitative material supply method according to claim 1, wherein the number of times in which the difference is equal to or more than the plus or minus deviation is continuous can be set in advance. 3. The method according to claim 1, wherein, instead of decreasing or increasing the feed amount of the carry-out conveyor, the feed amount of the band-like material supplied from the material supply port to the carry-out conveyor is reduced or increased. Quantitative material supply method. 4. An apparatus for supplying a continuous material to be conveyed from a material supply port to a discharge conveyor, and an intermittent operation cutter for cutting the material continuously conveyed by the discharge conveyor at predetermined intervals to form a material lump. A weighing conveyor for continuously weighing the mass of material one by one, wherein the averaging device sequentially measures an average value of the weighed material based on a plurality of weighed values of the mass of material. Value measuring means, an information processing device for determining a difference between the target value of the material block and the average value, and controlling a feed amount of the continuous material based on the difference, and the unloading by the correction command signal from the information processing device. And an unloading conveyor feed amount control means for controlling the feed amount of the conveyor, wherein the information processing device determines whether or not the difference is greater than or equal to a deviation allowed on the plus side or the minus side with respect to the target value. Judgment bias Difference determining means, number-of-times determining means for determining whether or not a state in which the difference is equal to or more than the plus or minus side deviation has continued for a predetermined number of times, and only when the number of times has continued for a predetermined number of times, A signal sending means for sending the correction command signal for decreasing or increasing the quantity. 5. The fixed-quantity material supply device according to claim 4, wherein the supply device is formed by a material supply roller. 6. In place of the unloading conveyor feed amount control means,
6. The apparatus according to claim 5, further comprising means for controlling a rotation amount of the material supply roller, wherein the rotation amount of the material supply roller is decreased or increased based on the correction command signal.
The quantitative material supply device according to the above. 7. The method or apparatus according to claim 1, wherein the material is a food material. 8. The method or apparatus according to claim 1, wherein the material is rice. 9. The method or apparatus according to claim 1, wherein the material is a fertilizer. 10. The method or apparatus according to claim 1, wherein the material is humus.