JP2909830B2 - Kernel sorting control method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for selecting a grain which separates and removes small-sized debris mixed in a grain to be sorted. The present invention relates to a grain sorting control method for maintaining the rate and a suitable apparatus for carrying out the method.

[Prior Art] Conventionally, there is provided a grain sorter for separating and removing small-sized debris mixed in selected grains, and small-sized debris mixed in selected grains. Japanese Patent Publication No. Sho-63 is equipped with a sorting unit consisting of a sorting net that discharges the grains and a spiral rotating body that moves the selected grains along the surface of the sorting net.
No. -4469.

[Problems to be Solved by the Invention] In the selection of grains for separating and removing small-sized debris mixed in the selected grains, the separation of fine grains and debris in the selected grains is performed. The ratio, that is, it is necessary to keep the selection rate at a predetermined value, but conventionally, the operator visually judges the sorting status based on experience, and supplies the sorted kernel to the sorting unit per unit time, the sorting net tube. The number of rotations, the effective length of the sorting net, and the like are adjusted to make adjustments.

There is also known a means for detecting the supply amount of the sorted kernels to the sorting unit per unit time and controlling the rotation speed of the sorting net by an inverter circuit.

By the way, it is difficult to always maintain a constant selection rate by adjustment based on the experience of the worker. In addition, it is difficult, directly and indirectly, to accurately detect the supply amount of kernels to be sorted to the sorting unit per unit time.
Not only the supply of grain, but also various factors, such as temperature,
Since it is also affected by humidity, the type of grain, the water content, the mixing ratio of debris, and the like, the current situation is that the conventional inverter control cannot keep the selection rate constant at the desired accuracy.

The present invention has been made in view of the above-mentioned problems in the prior art, and directly detects the fine selection rate from the ratio between the amount of the sorted kernels sent from the sorting unit and the amount of the waste particles discharged. ,
Thereby, by means of controlling the number of revolutions of the spiral rotator of the sorting unit, it is possible to keep the selection rate of the selected kernels to be a predetermined selection rate, and optionally the selection rate, Moreover, it is an object of the present invention to provide a method and apparatus for controlling the selection of grains that can be selected over a wide range.

[Means for Solving the Problems] The present invention employs the following method and apparatus to achieve the object. That is, the first is a sorting net that discharges small-sized debris mixed in the selected grains, and a spiral rotator that moves the sorted grains along the surface of the sorting net. The fine selection rate is detected from the ratio of the amount of the sorted kernels sent from the sorting unit composed of and the amount of the waste particles discharged, so that the detected fine selection rate becomes the pre-selected fine selection rate. A grain sorting control method for increasing or decreasing the number of revolutions of the spiral rotator, and a method for sorting grains that discharges small dust particles mixed in grains to be sorted, And a spiral rotator that moves the kernels to be sorted along the surface of the kernel. The fine selection rate detecting means for detecting the fine selection rate based on the weight ratio of the refuse particles, A grain sorting control device comprising a sorting rate control means for controlling a sorting rate detected by the sorting rate detecting means to be a previously selected sorting rate, the third being mixed in the sorted grains. In a grain sorter comprising a sorting unit that discharges small-sized debris and a spiral rotating body that moves the selected grain along the surface of the sorting net, A rotating induction wing is provided on the sorting grain supply side of the sorting unit to guide and guide the sorted grain to be supplied into the sorting unit, and the weight and discharge of the sorted kernel sent out from the sorting unit. A fine selection rate detecting means for detecting the fine selection rate from the weight ratio of the waste particles, and controlling the fine selection rate detected by the fine selection rate detection means by increasing or decreasing the rotation speed of the spiral rotator so as to be a preselected fine selection rate. And a sorting rate control device.

In the above second or third configuration, the selection rate control means controls the inverter circuit for increasing or decreasing the number of revolutions of the helical rotator and the fine selection rate detected by the fine selection rate detection means to be a preselected selection rate. And an inverter control means for controlling the inverter circuit, and the selection rate control means further includes a dial provided with a scale as a guide of a selection rate to be selected.

[Operation] In the first method according to the present invention, since the fine selection rate is directly detected from the ratio of the amount of the sorted kernels sent from the sorting unit to the amount of the waste particles discharged, the sorting is performed. The selected grain selection rate is always detected with high accuracy without being affected by other factors. Then, by controlling the moving speed of the selected kernels by increasing or decreasing the rotation speed of the spiral rotator so as to maintain the preselected selection rate by the detected high selection rate, the required selection rate is always required. The selected grain is obtained.

In the second apparatus according to the present invention, the fine selection rate is detected by the fine selection rate detecting means from the weight ratio of the sorted kernels sent out from the sorting section to the discharged dust particles, and the fine selection rate control means is provided. Thus, the number of rotations of the spiral rotator is increased or decreased, and the fine selection rate detected by the fine selection rate detecting means is controlled so as to be a fine selection rate selected in advance, so that the fine selection rate of the sorted kernels is directly increased. Detected with high accuracy without being affected by other factors, the number of rotations of the spiral rotator is increased or decreased to control the moving speed of the selected kernels, and to obtain the selected kernels with the required fine selection rate at all times. Can be

In the three devices according to the present invention, since the rotary induction wings for guiding the selected kernels to be supplied into the sorting unit are provided on the selected kernel supply side of the sorting unit, Since the sorted kernels to be supplied are taken into the sorting unit in a uniform flow without being delayed on the supply side, the ratio of the sorted kernels sent out from the sorting unit and the waste particles discharged from the sorting unit is determined. Even if the value is obtained at the time, an appropriate value is always detected. For this reason, more precise control of the selection rate is performed.

In the devices 2 and 3 according to the present invention, the selection rate control means is an inverter circuit for increasing or decreasing the number of revolutions of the spiral rotator, and the fine selection rate detected by the fine selection rate detection means is a preselected selection rate. With the inverter control means for controlling the inverter circuit as described above, high-precision automatic control can be performed by continuously controlling the rotation speed of the spiral rotator.

Further, when the selection rate control means is provided with a dial provided with a scale as a guide for the selection rate to be selected, the selection rate can be selected easily and accurately.

Embodiment An embodiment of a preferred apparatus for carrying out the method according to the present invention will be described with reference to the drawings.

The drawing illustrates an example of a grain sorter having an automatic weighing function.

1 to 3, reference numeral 1 denotes a sorting unit,
The sorting unit 1 is provided with a sorting net 3 provided in an exterior body 2 and a spiral rotator 4 provided inside the sorting net 3, and the spiral rotator 4 is connected to an electric motor via a lower speed reduction mechanism 5. 6 and is rotationally driven by the electric motor 6. The sorting net cylinder 3 is also rotatably supported, is interlocked with the electric motor 6 via the speed reduction mechanism 7, and is driven to rotate at a lower speed and in the opposite direction than the spiral rotating body 4. A supply chamber 8 for sorted kernels is formed at a lower position of the spiral rotator 4, and a supply hopper 9 is connected to the supply chamber 8. In the supply chamber 8, there is located a supply cylinder 10 which is engaged with the sorting screen cylinder 3 and rotates integrally therewith, and an introduction port 11 for a grain to be sorted is formed at a lower portion of the supply cylinder 10. ing. And
Guide wings 12 are formed on the outer periphery of the supply cylinder 10, and the supply hopper 9 is formed by the rotating supply cylinder 10 and the guide wings 12.
A rotary induction wing body 13 for guiding and guiding the selected kernels supplied from the inside from the inlet 11 is formed. The rotating guide wing body 13 is rotated integrally with the sorting mesh cylinder 3 to rotate the guide wing body 13.
The guide 12 guides the selected kernels down. Reference numeral 14 denotes a tank for sorted kernels, and a delivery port 15 provided with an automatic shutter is formed below the tank 14. 16 is the upper grain discharge blade, 17 is the dust gutter, 18
Is a particle discharge blade, and 19 is a particle discharge gutter. Reference numeral 20 denotes a weighing scale, and the weighing scale 20 has a built-in load cell for converting weight into an electric signal. The weighing scale 20 is used below the outlet 15 of the tank 14. 21 is a storage bag for grain.

Reference numeral 22 denotes a control unit. As shown in FIG. 4, the control unit 22 includes an inverter circuit 23 for controlling the rotation speed of the electric motor 6, an inverter control means 24 for controlling the inverter circuit 23, The fine selection rate detecting means 25 for detecting the fine selection rate from the weight ratio of the sorted grains measured by the total 20 and the weight ratio of the fine particles discharged from the fine particle discharge gutter 19, and the fine selection rate detected by the fine selection rate detecting means 25 A circuit device 26 for controlling the inverter control means 24 and the like are incorporated. The weight of the debris discharged from the debris discharge gutter 19 is measured by an appropriate weighing means 27 and input to the fine selection rate detecting means 25.

In addition, the main body of the grain sorter is set with the weight value to be weighed.
A control device (not shown) for automatic weighing, such as closing an automatic shutter, is provided with a scale as a guide of a selection rate to be selected as shown in FIG. A dial 28 is provided. Reference numeral 29 denotes a push button switch for automatically or manually switching the control of the selection rate.When the switch is automatically switched, automatic control for maintaining a preselected selection rate by operating the dial 28 is performed, and the mode is switched to manual. In this case, the number of rotations of the rotary spiral 4 is set to match the selection rate selected by the dial 28.

In the apparatus configured as described above, the supply hopper 9
The selected kernels stretched in the supply chamber 8 flow into the supply chamber 8, and the selected kernels in the supply chamber 8 are supplied to the inlet of the supply cylinder 10 of the rotation induction wing body 13 that rotates integrally with the selection mesh cylinder 3. Introduced from 11 and lifted by the rotation of the helical rotator 4, in the course of the movement, dust particles are eliminated from the mesh of the sorting net 3 along the sorting net 3. Then, the sorted kernels are stored in the upper tank 14, and the opening / closing control of the automatic shutter of the outlet 15 is filled with the selected kernels of a preset weight value in the storage bag 21, and the weight of the selected kernels is adjusted. The value is weighed on a weigh scale 20. In the supply chamber 8, the sorted kernels that have flowed in are subjected to the pushing-down action of the induction blades 12 of the rotating induction blades 13, so that the sorted kernels are pushed back due to the rotational centrifugal force of the spiral rotor 4. Thus, the selected kernels are always introduced from the inlet 10 as an even flow.

By the way, the selection rate detecting means 25 detects the selection rate from the weight ratio of the sorted kernels sent out from the sorting section 1 and the weight of the discharged dust particles, and the selection rate by the inverter circuit 23 and the inverter control means 24. The control means increases or decreases the number of revolutions of the helical rotator 4 and controls the selection rate detected by the selection rate detection means 25 to be a selection rate selected in advance, but the selection rate of the selected kernels is controlled. Can be detected with high accuracy without being directly affected by other factors such as temperature, humidity, supply amount of sorted kernels per unit time, moisture content of sorted kernels, and mixture of debris Therefore, the moving speed of the selected kernels is controlled by increasing or decreasing the number of revolutions of the spiral rotator 4, so that the selected kernels having a required fine selection rate are always obtained. As described above, the selection rate is determined based on the ratio of the weight of the sorted kernel to the weight of the refuse kernel, but this may be based on both or one of the two by volume.

The detection of the weight of the sorted kernel and the weight of the refuse kernel for detecting the above-mentioned selection rate is performed by sampling for a certain period of time during weighing. The guided wings 13 are provided, and the sorted kernels are taken into the sorting unit 1 in a uniform flow without stagnation.
Regardless of the ratio of the selected kernels sent from the sorting unit 1 to the ratio of the discharged swarf, an appropriate value is always detected. For this reason, more precise control of the selection rate is performed.

Further, when the selection rate control means is provided with the dial 28 provided with a scale as a guide for the selection rate to be selected, the selection rate can be selected easily and accurately.

If the properties of the grains to be sorted and the supply amount per unit time are substantially equal, even if the control of the sorting rate is selected by the push button switch 29 and the manual control is selected, the sorting rate is set to a required value. It is convenient to choose manual control because it can be kept.

In the case of manual control, the weighing scale
It is also possible to determine the selection rate based on the total of the measured values by 20 and the weight or volume of the waste particles discharged during the period, and adjust the dial 28 based on the selection rate to maintain the required selection rate.

[Effects of the Invention] According to the present invention, the following effects can be obtained.

That is, the first is a sorting net that discharges small-sized debris mixed in the selected grains, and a spiral rotator that moves the sorted grains along the surface of the sorting net. The fine selection rate is detected from the ratio of the amount of the sorted kernels sent from the sorting unit composed of and the amount of the waste particles discharged, so that the detected fine selection rate becomes the pre-selected fine selection rate. A grain sorting control method for increasing or decreasing the number of revolutions of the spiral rotator, and a method for sorting grains that discharges small dust particles mixed in grains to be sorted, And a spiral rotator that moves the kernels to be sorted along the surface of the kernel. The fine selection rate detecting means for detecting the fine selection rate based on the weight ratio of the refuse particles, A grain sorting control device comprising a sorting rate control means for controlling a sorting rate detected by the sorting rate detecting means to be a previously selected sorting rate, the third being mixed in the sorted grains. In a grain sorter comprising a sorting unit that discharges small-sized debris and a spiral rotating body that moves the selected grain along the surface of the sorting net, A rotating induction wing is provided on the sorting grain supply side of the sorting unit to guide and guide the sorted grain to be supplied into the sorting unit, and the weight and discharge of the sorted kernel sent out from the sorting unit. A fine selection rate detecting means for detecting the fine selection rate from the weight ratio of the waste particles, and controlling the fine selection rate detected by the fine selection rate detection means by increasing or decreasing the rotation speed of the spiral rotator so as to be a preselected fine selection rate. Since it is a kernel sorting control device configured by providing a sorting rate control means to
By means of directly detecting the fine selection rate from the ratio of the amount of sorted kernels sent out from the sorting unit to the amount of waste particles discharged, thereby controlling the number of revolutions of the spiral rotator of the sorting unit In addition, the selection rate of the selected grains can be kept constant so as to be a preselected selection rate, and the selection rate can be arbitrarily selected over a wide range.

And in the said 3rd structure, especially the to-be-selected grain supplied to a sorting part does not stay on the supply side,
Since the flow is evenly taken into the sorting unit, an appropriate value is always detected regardless of the ratio between the sorted kernels sent from the sorting unit and the discharged dust particles at any time. For this reason, more precise control of the selection rate is performed.

In addition, in the second or third configuration, the selection rate control means is adjusted so that the inverter circuit for increasing or decreasing the rotation speed of the spiral rotator and the fine selection rate detected by the fine selection rate detection means become the preselected selection rate. With the inverter control means for controlling the inverter circuit, high-precision automatic control can be performed by continuously controlling the number of revolutions of the helical rotating body. With a dial provided with a scale, the selection rate can be easily and accurately selected.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the apparatus according to the present invention, FIG. 1 is a vertical sectional side view of the whole grain sorter, FIG. 2 is an enlarged vertical sectional side view of a part thereof, and FIG. FIG. 4 is a block diagram showing a configuration of a control unit, and FIG. 5 is a front view of a dial portion. 1 ... sorting section, 3 ... sorting net tube, 4 ... spiral rotating body, 8
...... Supply chamber, 9 ... Supply hopper, 11 ... Inlet for selected kernels, 13 ... Rotating derivative, 14 ... Tank, 15 ... Sending port, 19 ... Small particle discharge gutter, 20 ... Weight scale, 22 ... Control unit,
23 …… Inverter circuit, 24 …… Inverter control means, 25
... Selection rate detection means, 26 ... Waste weighing means, 28 ...
…Dial

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-1-203086 (JP, A) JP-A-61-242677 (JP, A) JP-B 7-110351 (JP, B2) (58) Field (Int.Cl. ⁶ , DB name) B07B 1/00-1/62

Claims (5)

(57) [Claims] 1. A sorting net for discharging small dust particles mixed in a selected grain, a spiral rotating body for moving the selected grain along the surface of the sorting net, and In order to detect the fine selection rate from the ratio of the amount of the sorted kernels sent from the sorting unit configured and the amount of the discharged dust particles, so that the detected fine selection rate becomes a pre-selected fine selection rate A kernel sorting control method for increasing or decreasing the number of revolutions of a spiral rotator. 2. A sorting net for discharging small dust particles mixed in the selected grain, and a spiral rotating body for moving the selected grain along the surface of the sorting net. In a grain sorter comprising a sorting unit composed of, in the selective sorting rate detecting means for detecting the selective rate from the weight ratio of the sorted kernels sent out from the sorting section and the weight ratio of the discharged dust, A grain sorting control device comprising sorting rate control means for increasing or decreasing the number of revolutions of the spiral rotator so as to control the selected rate detected by the selected rate detecting means to a preselected selection rate. 3. A sorting net for discharging small dust particles mixed in the selected grain, and a helical rotating body for moving the selected grain along the surface of the sorting net. In the grain sorter provided with a sorting unit constituted by, in the sorting grain supply side of the sorting unit, a rotary induction wing body for guiding and guiding the supplied sorted grain into the sorting unit is provided. The fine selection rate detecting means for detecting the fine selection rate from the weight ratio of the sorted kernels sent out from the section and the waste particles discharged, and the fine selection rate detection means for increasing or decreasing the rotation speed of the spiral rotating body. And a selection rate control means for controlling the selected selection rate to be a preselected selection rate. 4. The selection rate control means includes an inverter circuit for increasing / decreasing the number of revolutions of the spiral rotator, and an inverter for controlling the inverter circuit so that the selection rate detected by the selection rate detection means becomes a preset selection rate. The selection control device according to claim 2 or 3, wherein the selection control device comprises control means. 5. A method according to claim 2, wherein said selection rate control means includes a dial provided with a scale for indicating a selection rate to be selected.
(3) The grain sorting control device according to (4).