JPH09103691A - Controller of unhulled-rice hulling and selecting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stabilize efficiency in hulling-selection of unhulled rice by a method wherein a roller for the hulling and a rotation selecting cylinder are kept at respective specific number of rotations without being influenced from a feed amount to the roller for hulling and a rotation load of the rotation selecting cylinder. SOLUTION: In a hulling-selecting apparatus wherein a pair of rollers for hulling are driven with a main motor 44 capable of being controlled by an inverter 25a, and mixed rice is selected with a rotation selecting cylinder rotating around a horizontal axis, a grain feed amount to the roller for hulling is adjusted in relation to a grain amount to be selected of the rotation selecting cylinder, a frequency of the inverter 25a is corrected based on detection information of a shutter sensor 39 detecting the feed amount to the roller for hulling rice and information for detected rotation number of a rotary sensor 40, and the number of rotations of the main motor 44 is corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a control device for a hull sorting machine having a hull rolling roll and a rotary sorting cylinder.

[0002]

2. Description of the Related Art In a hulling / sorting machine having a hulling portion having a pair of hulling rolls and a rotary sorting cylinder rotating around a horizontal axis for sorting mixed rice, the grain size of the rotary sorting cylinder is increased or decreased. Relatedly, it is known that the grain is sorted while controlling the grain supply amount to the grain portion in a related manner.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the above-mentioned paddy hull sorting machine, the rotation speed of the main motor changes due to load fluctuations due to the grain feeding amount to the hulling portion and the grain amount of the rotary sorting cylinder, There is a problem that the work performance changes and the predetermined work efficiency cannot be exhibited. Therefore, the present invention solves the above problems,
Even if there is a change in the amount of grains in the hulling section and the mixed rice sorting section, the number of rotations of these working sections is kept at a predetermined number of rotations, and the hulling work efficiency is to be stably exhibited. .

[0004]

The technical means of the present invention for solving such a technical problem is a pair of hulling rolls.
The main motors 44, 3 and 3, which are controlled by the inverter 25a and drive the hulling rolls 3, 3, and the hulling roll.
Paddy supply control valve 39a for adjusting the grain supply amount to the
A shutter sensor 39 for detecting the open / closed state of the paddy supply control valve 39a, a load current sensor 32 for detecting the load current value of the main motor 44, and a gap between the paddy rolls 3 and 3 for the load current. Roll gap control means for opening / closing control on a value basis or a removal rate basis, a rotary sorting cylinder 11 for rotating around a horizontal axis to sort paddy / brown rice, and a rotation for detecting the number of rotations of the rotary sorting cylinder 11. Based on the sensor 40, the paddy supply amount control means for adjusting the paddy supply adjusting valve 39a in relation to the grain amount of the rotary selection cylinder 11, the detection information of the shutter sensor 39 and the rotational speed information of the rotation sensor 40. The control device of the grain sorting machine is composed of a frequency correction means for correcting the frequency of the inverter 25a.

[0005]

When paddy is supplied to the paddy rolls 3 and the paddying operation is started, the paddy feed control valve 39a is associated with the increase / decrease in the grain amount of the rotary selection cylinder 11. While being adjusted, it is supplied to the hulling rolls 3 and 3 to perform hulling work. During such hulling work, the shutter supply sensor 39 controls the paddy supply control valve 3
Opening / closing information of 9a, and the rotation sensor 40 with the rotation sensor 40
The rotational frequency information of 1 is detected, the correction frequency of the inverter 25a is determined based on these detected information, and the main motor 4
The number of rotations is adjusted to adjust 4 to a predetermined number of rotations, and the hull sorting operation is performed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below. First, the configuration of the embodiment will be described. First, the overall configuration of a hulling and sorting machine will be described with reference to FIG. Reference numeral 1 denotes a hulling unit. The hulling unit 1 includes a hulling hopper 2, a pair of hulling rolls 3, 3, and the like. Reference numeral 4 is a sludge removal unit, in which the sludge from the rice hull portion 1 is wind-selected by the sorting wind generated by the suction dust collector 5 in front, and the light rice husk is sucked by the suction dust collector 5, dust removal. The heavy brown rice and the mixed rice of paddy discharged through the tube 6 to the outside of the machine, and the mixed rice of the heavy brown rice and the paddy rice 7 below
To be sorted. The mixed rice dropped and sorted into the slide-down rice receiving gutter 7 is fried by the mixed rice fried machine 8 and is supplied to the conveyance start end portion of the supply gutter 14 on the rotary selection cylinder 11 side through the mixed rice hopper 9. It is a configuration.

Reference numeral 10 denotes a sorting case.
In 0, a rotary selection cylinder 11 having a large number of jar holes on its inner peripheral surface is arranged so that it rotates around the horizontal axis and its selection start side (right side in FIG. 1 (1)) and selection end side. (Fig. 1 (1)
The left side) is rotatably supported by drive rollers 12, 12, .... A supply gutter 14 supported by a supply spiral 13 and a brown rice gutter 16 supported by a brown rice helix 15 are horizontally suspended in the rotary sorting cylinder 11.

When arranging the supply gutter 14 and the brown rice gutter 16 in the rotary selection tube 11, as shown in FIG. 1 (2), the supply gutter 14 is placed on the scraping side of the rotary selection tube 11 and again. The brown rice gutter 16 is disposed on the side of the rotary selection cylinder 11 that rotates downward from above. In this supply gutter 14, the mixed rice of paddy and a part of brown rice scooped up low in the pot hole of the rotary selection cylinder 11 is dropped and sorted, and is further transferred by the supply spiral 13 to the conveying end side of the supply gutter 14. Rotating sorting cylinder 11
The supply gutter 14 also has a function of receiving mixed rice.

[0009] The brown rice gutter 16 is provided with a brown rice falling tube 1 at the end of the conveyance.
7. It is connected to brown rice gutter 19 through brown rice grain plate 18. The brown rice received by the brown rice gutter 16 is the brown rice falling tube 1
7. The brown rice is passed through the brown rice grain plate 18 and dropped into the brown rice gutter 19 to be selected by air, and is further taken out from the brown rice gutter 19 via the brown rice grain cultivator 20. Rotating sorting cylinder 1
Below the sorting end side of No. 1, a paddy gutter 21 is arranged. A paddy grain hopper 22 is connected to the paddy receiving trough 21, and an upper end of the paddy grain hopper 22 is connected to the paddy reducing hopper 23 of the paddy hull 1. Then, the grain mainly composed of the sorted paddy rice that has flowed to the sorting end side of the rotary sorting cylinder 11 is the paddy receiving gutter 21.
In addition, the grain is dropped to the grain hulling machine 1, the grain-reducing hopper 23, the grain is reduced to the grain-sliding unit 1, and the grain is again grained. It should be noted that the mixed rice sorting unit may be replaced with a rotary grain sorting device, and a swing sorting device type or other system may be used.

FIG. 2 shows a known roll gap control device for adjusting the gap between the hulling rolls 3 and 3. The hulling rolls 3 and 3 are a hulling roll 3 which rotates at a fixed position on the left side, and a right hulling roll 3 which is rotatably supported by a swing arm to be adjusted. It is composed of. Roll clearance control motor 45
Is rotated normally or reversely, the gap between the hulling rolls 3 is adjusted to be opened and closed by the roll gap adjusting means composed of a gear group, an adjusting screw rod, a swing arm, and the like. is there.

Next, FIGS. 3 to 5 will be described. C
The control unit 25 having a built-in PU is connected to the inverter 25a (a main circuit including a forward conversion device unit that converts alternating current to direct current, a reverse conversion device unit that converts direct current to alternating current, and a forward and reverse conversion device unit. Which is composed of a control circuit section that is built in), and the frequency and torque of the main motor 44 and various control motors are changed to increase or decrease the number of revolutions during operation. The main motor is held at a predetermined rotation speed.

A large number of switch groups are connected to the control unit 25, and a large number of sensor groups are connected via a signal conversion circuit 36 which is an interface. To 25, a large number of actuator groups and a display device group are connected via an output interface. Next, these connection relationships will be specifically described.

Pull-off rate upper switch 26, pull-off rate lower switch 27, cylindrical rotation high switch 28, cylindrical rotation low switch 2
9, automatic / manual switch 3 to switch to automatic or manual
0, a load of detecting the load current value of the main motor 44, and a switch group of the display changeover switch 31 for switching and displaying the rotation speed of the rotation selection cylinder 11 and the detected load current value on the cylindrical rotation speed display device 50. Current sensor 32, power supply voltage sensor 33,
A power supply frequency sensor (R-T) 34, a sensor group of a power supply frequency sensor (S-T) 35, a grain sensor 37 for detecting the presence or absence of grains in the paddy hopper 2, and a hulling roll 3, 3
, A roll deployment sensor 38 for detecting a deployment state in which the roll gap is widely opened, a shutter sensor 39 for detecting a fully closed state of the paddy supply control valve 39a, a rotation sensor 40 for detecting the number of rotations of the rotary selection cylinder 11, A valve opening sensor 41 comprising a potentiometer for detecting the opening of the paddy supply control valve 39a,
A sensor group of a transistor-open collector type scattering sensor 42 for detecting the picked-up state of the grain in the rotary selection cylinder 11,
The run / stop switch 43 is connected to each of the control units 25 via the signal conversion circuit 36.

Further, a roll for adjusting the roll gap between the main motor 44 and the hull rolls 3 and 3 for driving the hull sorting machine from the control section 25 via the signal conversion circuit 36. Gap adjustment mode
The motor 45, a shutter opening adjustment motor 46 for adjusting the opening of the paddy supply adjusting valve 39a, a cylindrical rotation adjusting motor 47 for adjusting the rotation speed of the rotary selection cylinder 11, and a communication device 48 are provided. It is connected. Further, the control unit 25 includes a display tube 49 for displaying characters, numbers, etc., a cylindrical rotation speed display device 50 for displaying the rotation speed of the rotation selection cylinder 11, current display LEDs 51, L.
The ED display device 52 and the buzzer 53 are connected to each other.

Next, the control panel 54 shown in FIG.
Will be described. The control panel 54 includes, for example, a fluorescent display tube type display tube 49 and a cylindrical rotation speed display device 5.
0, current display LED 51, display unit for displaying the presence or absence of paddy in the paddy hopper 2, shutter open / close display unit, roll expansion display unit, LED display unit 52a for displaying the presence or absence of abnormality, whether automatic operation or manual operation LED display section 52b for displaying
LED display 52c for displaying roll expansion, automatic / manual switch 30, take-off rate lower switch 27, take-off rate upper switch 26, cylindrical rotation low switch 29 for lowering and adjusting the number of rotations of the rotary selection cylinder 11, rotation Cylindrical rotation height switch 28 and display changeover switch 31 for increasing and adjusting the rotation speed of the selection cylinder 11.
However, it is provided for each husband and wife.

Next, the control contents of the CPU 25 will be described. First, the automatic / manual switch 30 is selected on the automatic side, and the run / stop switch 43 is operated on the run side. Then, the main motor 44 is turned on to drive the rotating parts of the paddy hull sorting machine. Next, the initial gap setting control for setting the initial gap between the hulling rolls 3 and 3 is performed. A roll gap opening command signal from the CPU 25 is output to the roll gap adjusting motor 45, and the roll gap adjusting means 24 is driven to open for a predetermined time.
When the clearance between the hulling rolls 3 is adjusted and the load current sensor 31 detects the non-contact state of the hulling roll in which the detected load current value does not change, the opening adjustment is stopped. Then,
A close command signal for the roll gap is output, the roll gap is closed and adjusted, and the load current sensor 32 detects an increase in the load current value.
When the slight contact between the hulling rolls 3 and 3 is confirmed, the closing adjustment is stopped. Then, an opening command signal for the roll gap is output, and the roll gap adjusting motor 45 is opened for a predetermined time.
The adjustment setting is made to a predetermined initial gap (for example, 1 mm).

Next, the shutter opening initial setting control for adjusting the initial opening of the paddy supply adjusting valve 39a is performed. CP
An opening command signal is output from U25 to the shutter opening adjustment motor 46 to set an initial opening for opening the paddy supply adjusting valve 39a to a predetermined valve opening (for example, 10 mm), and the paddying operation is started. It Next, a paddy supply control lever (not shown)
The valve opening adjustment command signal for adjusting to the supply amount adjustment setting position is output, and the paddy supply adjusting valve 39a is changed and adjusted to the position corresponding to the set efficiency valve opening.

Then, the control shifts to the roll clearance control based on the load current value. Then, the detected load current value of the load current sensor 32 is sent to the control unit 25, and the control reference value and the detected load current value are compared. When the detected load current value is higher than the control reference value, the controller 25 outputs an open command signal to the roll gap adjusting motor 45 to adjust the gap between the hulling rolls 3 and 3 to the open side by a predetermined amount. If the detected load current value is lower than the control reference value, a closing command signal is output, the gap between the hulling rolls 3, 3 is closed by a predetermined amount, and the control returns to the control reference value. If the detected load current value is within the control reference value range, the control command signal is not issued,
Hulling work is performed while maintaining the roll gap as it is. Instead of the roll clearance adjustment control based on the load current value reference, the clearance control of the hulling roll based on the removal rate reference may be performed. Next, the slip control of the main motor 44 will be described with reference to FIG. During the hulling operation, the load current sensor 32 and the power supply voltage sensor 33 detect the current value and the power supply voltage of the main motor 44, and then, based on the detection results, a test based on the characteristics of the main motor 44 is performed. The slip ratio is calculated from a bull or a predetermined calculation formula (for example, when the load current value is 7.63 amps and the power supply voltage is 200 V, the slip ratio is 6.2%). Next, a correction frequency corresponding to the slip ratio is calculated (in the above case, for example, 4.3 Hz is increased), then a command to increase the correction frequency is issued, and the main motor 44 adds the correction frequency. It rotates at an increasing number of revolutions.

Therefore, during hulling work, the main shaft can be rotated at a set rotational speed without lowering the rotational speed, and the hulling rolls 3 and 3 can hull according to the set efficiency, thereby improving work efficiency. improves. As shown in FIG. 7, the following control may be added prior to or at the time of control. Power frequency sensor (R-T) 34, power frequency sensor (S
-T) detects the power supply frequency, and in the case of the 50 Hz power supply, the torque is corrected by multiplying by a predetermined value or adding the predetermined ON time to the ON time of the unit frequency, as compared with the case of the 60 Hz power supply. After that, the torque correction and the correction frequency may be corrected. The graph of FIG. 7 (1) (the vertical axis represents the rotation speed of the main motor 44, the horizontal axis represents the motor current value, and the motor rotation speed and the motor current value at 50 Hz and 60 Hz are shown. From the relationship, the slip of the motor is shown.) At the same torque, 50 Hz causes a larger slip during belt transmission than 60 Hz, and it is necessary to consider such a slip ratio. There is. With the above structure, the rotation speed of the main motor 44 during operation can be kept constant and stable hulling operation can be performed regardless of the power supply frequency of 50 Hz and 60 Hz.

Further, as shown in FIG. 8, the following control may be added before the control or during the control. The power supply voltage sensor 33 detects the power supply voltage, and in the case of a 200 volt power supply,
The torque may be corrected to increase by multiplying a predetermined value or adding a predetermined ON time. FIG.
Graph (1) (the vertical axis represents the rotation speed of the main motor 44, the horizontal axis represents the motor current value, and the power supply voltage is 220, 200, 18).
The relationship between the motor rotation speed and the motor current value when the voltage is 0 V indicates the sliding state of the motor. As shown in (), the slippage during belt transmission is larger as the power supply voltage is lower at the same torque, and it is necessary to consider such a slip ratio. Thus, with the above configuration, the number of rotations of the main motor 44 during operation can be kept constant regardless of the level of the power supply voltage, and stable hulling operation can be performed.

Further, as shown in FIG. 9, the following control may be added prior to the control or during the control. The power supply frequency sensor (R-T) 34 and the power supply frequency sensor (S-T) detect the power supply frequency, and in the case of a 50 hertz power supply, multiplication of a predetermined value or turning on of a unit frequency is performed, as compared with the case of a 60 hertz power supply. The torque may be corrected by adding a predetermined ON time to the time, and then the torque correction and the correction frequency may be corrected.

The graph of FIG. 9A (the vertical axis is the main motor 44)
And the motor current value is shown on the horizontal axis, and the motor slippage is shown from the relationship between the motor rotation speed and the motor current value at 50 hertz and 60 hertz. As shown in (), when the ON time of the unit frequency is the same, 50 Hz causes a larger slip during belt transmission than 60 Hz, and it is necessary to consider such a slip ratio.
Thus, with the above configuration, the number of revolutions of the main motor 44 during operation can be kept constant and stable hulling operation can be performed regardless of the level of the power supply frequency.

Further, as shown in FIG. 10, the following control may be added prior to or at the time of control. The number of power supply phases is detected by the phase number detection sensor (not shown),
In the case of a single-phase power supply, the torque may be corrected by multiplying a predetermined value or adding a predetermined ON time, as compared with the case of a three-phase power supply. The graph of FIG. 10 (1) (the vertical axis represents the rotation speed of the main motor 44, the horizontal axis represents the motor current value,
The slip state of the motor is shown from the relationship between the motor rotation speed and the motor current value in three-phase and single-phase. As shown in), with the same torque, the single phase has a larger slip during belt transmission than the three phases, and it is necessary to consider such a slip ratio. Thus, with the above configuration, the number of rotations of the main motor 44 during operation can be kept constant regardless of the change in the number of phases, and stable hulling operation can be performed.

Next, based on FIG. 11, the rotary selection cylinder 11
The rotation speed control will be described. The hulling work is started, the initial clearance setting of the hulling rolls 3, 3 and the hull supply control valve 39a.
When the opening control of 3 is completed, the shutter sensor 39 detects the open / closed degree of the paddy supply control valve 39a and detects that the paddy supply control valve 39a has settled within a predetermined range. Then, the detection information of the shutter sensor 39, the rotation speed information of the rotation selection cylinder 11 of the rotation sensor 40, the detection information of the load current sensor 32, the power supply voltage sensor 3
The power supply voltage information of No. 3 is sent to the control unit 25. From the detected information, the increase or decrease correction frequency of the inverter 25a is calculated from a predetermined table or a predetermined calculation formula. Then, a command to increase / decrease the correction frequency is issued, and the rotation speed control is performed to increase / decrease the rotation speed of the main motor 44.

Therefore, the hulling rolls 3 and 3 and the rotary sorting cylinder 11 are set to a predetermined rotation speed without being affected by the supply amount to the hulling rolls 3 and 3 and the rotational load of the rotary sorting cylinder 11. It is possible to hold and stabilize the efficiency of hulling and sorting.

Next, the reverse rotation control of the hulling rolls 3 and 3 at the start of hulling will be described with reference to FIG. When a power switch (not shown) is turned on to stand by for hulling work, the phase is detected by a phase detection circuit (not shown) of the control unit of the inverter 25a, and the rotation direction of the main motor 44 is changed. To be judged. Next, when the drive / stop switch 43 is operated to drive the main motor 44, the control unit 25 issues a reverse rotation command to the inverter 25a, and the main motor 44 is driven.
Reversely rotates for a predetermined time, then a forward rotation command is issued,
The main motor 44 rotates in the normal direction, and the hulling rolls 3 and 3 start hulling.

However, at the start of the work, the hulling roll 3,
Even if the paddy is accumulated on top of No. 3, the paddy work is started after the paddy is removed by the reverse rotation, and the operation is stopped due to the overload of the paddy roll. In addition, there is no need to operate the roll expansion lever at the start, and the operation becomes simple. Next, the connection relationship between the control unit 25 and the inverter 25a will be described with reference to FIG.

From the three-phase power source to the breaker 61 and the cable 62
The power is supplied to the inverter box 63 via the inverter box 63, the inverter start switch 64 is connected to the inverter box 63 via the cable, and the inverter box 63 is connected to the inverter box 63 via the cable 65. The main motor 44 is connected.
Further, the detection cable 66 is pulled out from one phase or several phases of the cable 65, and the load current sensor 32 of the control unit 25 is extracted.
It is connected to the.

Therefore, the load current sensor 32 detects the stable load current value after the frequency change through the detection cable 66, and the roll clearance control of the hulling rolls 3 and 3 is performed. Is done. Further, the load current value without variation on the side of the inverter 25a can be detected, and accurate control can be performed while improving work efficiency in a limited power source capacity. Next, the connection relationship of the inverter 25a with the existing type will be described with reference to FIG.

FIG. 14 (1) shows an inverter 25 of a normal type.
By connecting a later, the normal type is changed to the inverter type. Socket for connecting to a three-phase power source,
The first cable 62a having the car 61, the second cable 62b via the connecting portion, and the third cable 62c via the connecting portion are used to supply power to the main motor 44. An inverter cable 62d having a connector 25a, a connecting portion, and an inverter start switch 64, and the second cable 6
The configuration is such that it is connected between 2b and the third cable 62c, and the normal type can be changed to the inverter type.

In FIG. 14 (2), the inverter 25a is connected later to the automatic control type having the control unit 25 to change to the inverter specification. Socket for connecting to three-phase power supply, breaker 61, and detection case for detecting load current value
A first cable 62a having a cable 62e, a connecting cable 62f, a control box having a controller 25,
Control cable 6 connected to various detectors and control motors
2g, a cable 62h connected to the power source side of the breaker 61 of the first cable 62a, and a third cable 62c having the main motor 44, which is a connection cable portion of the control unit. Are configured. Also, an inverter cable 62 having an inverter 25a, a connecting portion, and an inverter start switch 64.
The connection cable on the inverter side is constituted by d.

The inverter on the inverter side,
The cable 62d is connected to each of the connection cable 62f, the third cable and the detection cable 62e. Therefore, the normal type and the control type can be easily changed to the inverter type. Next, based on FIG. 15, a cooling device for the inverter box having the inverter 25a built therein will be described.

An inverter 2 is provided on the rear wall of the hull sorting machine.
An inverter box 70 containing 5a is attached, and a main motor 44 is attached to the lower rear portion of the machine body. A drive shaft 44a of the main motor 44 is provided with a drive pulley 44b on the outside thereof and a cooling fan 44c on the inside thereof. Then, power is transmitted from the driving pulley 44b to a main shaft pulley (not shown) that drives the hulling roll 3 via a transmission belt (not shown), and rotation of the cooling fan 44c is performed. The cooling air generated in the first part flows into the airframe case 71 to cool the main motor 44, and then passes through the opening 71a in the rear wall of the airframe case 71 and the guide passage 72.
Flow into the inverter box 70, flow through the ventilation section of the inverter box 70, and are sent to the inverter box 70.
Cool 5a.

[0034]

According to the present invention, the correction frequency of the inverter 25a is calculated based on the opening / closing information of the paddy supply control valve 39a and the rotation information of the rotation selection cylinder 11 as described above.
Since the rotation speed of the main motor 44 is corrected, the hulling rolls 3 and 3 and the rotation thereof are not affected by the supply amount to the hulling rolls 3 and 3 and the rotation load of the rotation selection cylinder 11. The sorting cylinder 11 can be held at a predetermined rotation speed to stabilize the hulling sorting efficiency.

[Brief description of the drawings]

FIG. 1 is a cut side view and a cut back view of a hulling sorter.

FIG. 2 is a cutaway side view of a main part.

FIG. 3 is a block diagram.

FIG. 4 is a block diagram.

[Figure 5] Front view of the panel

FIG. 6 is a flowchart.

FIG. 7: Graph and flow chart

FIG. 8: Graph and flow chart

FIG. 9: Graph and flow chart

FIG. 10: Graph and flow chart

FIG. 11 is a block diagram and flow chart.

FIG. 12 is a flowchart.

[Figure 13] Wiring diagram

[Fig. 14] Wiring diagram

FIG. 15 is a cut rear view and a cut side view.

[Explanation of symbols]

 1 Hulling part 2 Hulling hopper 3 Hulling roll 4 Sliding rice wind selection part 5 Suction dust collector 6 Dust collector 7 Sliding rice gutter 8 Mixed rice grain hopper 9 Mixed rice hopper 10 Sorting case 11 Rotating sorting cylinder 12 Drive roller 13 Supply spiral 14 Supply gutter 15 Brown rice spiral 16 Brown rice gutter 17 Brown rice falling tube 18 Brown rice grain board 19 Brown rice receiving gutter 20 Brown rice grain grazing machine 21 Paddy receiving gutter 22 Paddy grain grinder 23 Reduction hopper 24 Roll clearance adjusting means 25 Control section 25a Inverter 26 Depth rate upper switch 27 Depth rate lower switch 28 Cylindrical rotation high switch 29 Cylindrical rotation low switch 30 Automatic / manual switch 31 Display change switch 32 Load current Sensor 33 Power supply voltage sensor 34 Power supply frequency sensor (R-T) 35 Power supply frequency sensor (S-T) 36 Signal conversion circuit 37 Glen sensor 38 Roll expansion sensor 39 Series Yatta sensor 39a Paddy supply adjusting valve 40 Rotation sensor 41 Valve opening sensor 42 Scattering sensor 43 Run / stop switch 44 Main motor 45 Roll gap adjusting motor 46 Shatter opening adjusting motor 47 Cylindrical rotation adjusting motor 48 Communication equipment 49 Display tube 50 Cylindrical rotation speed display device 51 Current display LED 52 LED display device 53 Buzzer 54 Control panel 57 EEPROM

Claims (1)

[Claims] 1. A pair of hulling rolls 3, 3 and an invertor.
A main motor 44 which is controlled by the rotor 25a and drives the paddy rolls 3 and 3, and a paddy feed control valve 39a which adjusts the grain supply amount to the paddy rolls 3 and 3. A shutter sensor 39 for detecting the open / closed state of the paddy supply control valve 39a and a load current sensor 32 for detecting the load current value of the main motor 44.
And a roll gap control means for controlling opening / closing of the gap between the hulling rolls 3 and 3 on the basis of a load current value or a removal rate.
Rotating sorting cylinder 11 that rotates around the horizontal axis to sort paddy and brown rice
A rotation sensor 40 for detecting the number of rotations of the rotary selection cylinder 11, a paddy supply amount control means for adjusting the paddy supply adjusting valve 39a in relation to the grain amount of the rotary selection cylinder 11, and the shutter sensor 39. And a frequency correction means for correcting the frequency of the inverter 25a based on the detected rotation speed information of the rotation sensor 40, and a control device for a hull sorting machine.