JPH07100392A - Controller for husking separator - Google Patents

Abstract

PURPOSE:To reset a motor to adequate load while continuing a husking separation operation by discriminating the heavy load and light load of a motor for driving hulling rolls and adjusting the supply rate of unhulled rice to the hulling rollers to a decrease side in the case of the light load. CONSTITUTION:This controller has an automatic spacing adjusting means for adjusting the spacing between a pair of the hulling rolls 3 and 3 and an unhulled rice supply adjusting means 43 for adjusting the supply rate of the unhulled rice to the hulling rolls 3, 3. Such husking separator is provided with the motor for driving the husking separator or the hulling rolls 3, 3, a load current sensor for detecting the load current value of this motor and a means for adjusting the decrease of the supply rate of the unhulled rice to adjust the unhulled rice supply adjusting means 43 to the decrease side in association with the light and overload detection of this load current sensor. Namely, the unhulled rice supply adjusting means is adjusted to the decrease side in association with the light load when the load current of the motor attains the light load during the husking separation operation. The normal operation state is thus reset while the load decreases and, therefore, the husking separation operation is performed by automatic run while the interruption of the operation is lessened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a hull sorter.

[0002]

2. Description of the Related Art In a hulling / sorting machine for working while automatically adjusting the gap between a pair of removing rolls and automatically adjusting the amount of paddy supplied to the removing rolls. When the driving motor of the sorting machine is overloaded, there are some which stop the driving.

[0003]

In such a conventional apparatus, the motor is stopped regardless of the heavy load or the light load of the motor, so that the work is frequently interrupted. There was a problem to do. Therefore, this invention is
Discriminating between heavy and light load, and if the load is light,
The amount of paddy supplied to the removing roll is adjusted to a decreasing side so as to restore the motor to an appropriate load while continuing the paddy sorting operation.

[0004]

The present invention has taken the following technical means in order to solve the problems of the prior art. That is, the present invention relates to a pair of removing rolls 3,
In the paddy sorting machine having an automatic gap adjusting means for adjusting the gap of No. 3 and a paddy supply adjusting means for adjusting the amount of paddy supply to the removing rolls 3, 3, a paddy sorting machine or a removing roll For driving the motor, a load current sensor for detecting a load current value of the motor, and a paddy for adjusting the paddy supply adjusting means to a decreasing side in association with detection of a light overload of the load current sensor. It is configured as a control device of a hulling and sorting machine having a supply amount reduction adjusting means.

[0005]

The gap between the pair of removing rolls 3 and 3 is adjusted by the automatic gap adjusting means on the basis of the load current value of the motor or the removing rate, and the padding to the removing rolls 3 and 3 is performed. The hull is sorted while the amount is adjusted. During work, the load current value of the motor for driving the hull sorter or the removal roll is detected by the load current sensor. For example, the reference overload current value of 12
When a light load current value of 0% is detected, the paddy supply adjusting means is adjusted to the decreasing side in connection with this. Then, until the load current is reduced to, for example, 95% of the overload reference value, the paddy supply amount is adjusted to be reduced, and when it becomes 95% or less of the overload reference value, the paddy supply adjusting means is adjusted to the increasing side. Is restarted,
The hulling and sorting work continues.

[0006]

Embodiments of the present invention shown in the drawings will be described below. First, the overall configuration of a hulling / sorting machine will be described with reference to FIGS. 1 to 3. Reference numeral 1 denotes a removing unit, which is composed of a paddy hopper 2, a pair of removing rolls 3 and the like. Reference numeral 4 is a slid-down rice wind selection path, in which the slid-down rice from the removing unit 1 is wind-selected by the sorting wind generated by the suction fan 5 in front, and the rice husks are passed from the suction fan 5 through the dust pipe 6 to the machine. The mixed rice of brown rice and paddy discharged to the outside is dropped and supplied to the sliding-down rice receiving gutter 7 below. The mixed rice dropped on the scraped rice receiving gutter 7 is fried in the mixed rice hopper 9 by the mixed rice fried machine 8 and conveyed to the start end of the supply gutter 14 on the rotary selection cylinder 11 side. .

[0007] 10 is a sorting case, this sorting case 1
In FIG. 0, the supply side end (right side in FIG. 1) and the discharge side end (in FIG. 1) are arranged so that the rotary selection cylinder 11 having a large number of pot holes on its inner peripheral surface can rotate in a substantially horizontal state. The left side) is rotatably supported by drive rollers 12, 12. In the rotary selection cylinder 11, a supply gutter 1 having a supply spiral 13 is provided.
4. A finished rice gutter 16 with a finished rice spiral 15 is laid horizontally.

When arranging the supply gutter 14 and the finished rice gutter 16 in the rotary selection cylinder 11, the supply gutter 14 is rotated upward from below the rotary selection cylinder 11 as shown in FIG. Side, and the finishing rice gutter 16 is arranged on the side that rotates from the upper side to the lower side of the rotary selection cylinder 11, and the mixed rice scraped up by the pot hole of the rotary selection cylinder 11 is supplied to the supply gutter 14
It is configured to be dropped to the end of the supply gutter 14 by the supply spiral 13 and the supply gutter 14 also has a function of a mixed rice receiving gutter.

The discharge side end of the finished rice gutter 16 is communicated with the finished rice gutter 19 through the finished rice drip cylinder 17 and the finished rice grate plate 18, and the brown rice is the finished rice grit 17 and the finished rice grate. The brown rice, which has been wind-selected after falling through the grain board 18 into the finished rice trough 19, flows down to the finished rice trough 19, and the finished rice lifting machine 2
When it is 0, it is taken out of the machine. A paddy gutter 21 is arranged below the discharge side end of the rotary sorting cylinder 11. 22
Is a grain hulling machine, and the upper end of the grain hulling machine 22 is connected to the reduced paddy hopper 23 of the removing unit 1, and the grain mainly composed of the sorted paddy rice dropped into the paddy trough 21. Grains are paddy grain fried machine 2
It is configured to be returned to the removing unit 1 through the reducing paddy hopper 23 by the unit 2.

Reference numeral 24 denotes a reduction shelf, which is slanted below the supply gutter 14 and the finished rice gutter 16 in the rotary selection cylinder 11 and scraped up by the rotation selection cylinder 11. Among the grains, the upper finishing rice gutter 16 and mixed rice gutter 1
The rotating sorting cylinder 11 receives the grains that do not reach the number 4, that is, the grains that have been scraped up relatively high and mixed with a lot of brown rice.
Of the rotation of the rotary sorting cylinder 11 from the rotation side of the rotation to the rotation side of the lower side of the fluidized bed of the grains to be sorted is further reduced in the rotation direction to the lower side of the direction of rotation, and the brown rice It has the function of increasing the chances of inserting a relatively large amount of grains into the pot hole and increasing the recovery efficiency of brown rice to the finished rice gutter 16.

Numeral 25 is a finished rice gutter 16 in the rotary selection cylinder 11.
The brown rice amount detector 25 is capable of detecting the amount of brown rice received by the brown rice amount detector 25. The brown rice amount detector 25 is provided at the take-out port 20a of the finished rice fried machine 20. In addition, this brown rice amount detector 25
May be arranged in the finished rice gutter 16 or in the take-out flow path from the finished rice gutter 16 to the outside of the machine. 26 is a rotary sorting cylinder 1
1 is a reduced grain amount detector that can detect the amount of grain that is taken out from the sorting end side of No. 1 and is reduced to the depulling unit 1.

On the operation panel 27, as shown in FIG.
Start switch S1, stop switch S2, buzzer-stop switch S3, manual / automatic changeover switch S4, mochi / whip changeover switch S5, paddy rice mixture switch S6, damaged rice switch S7, efficiency lowering switch S8, efficiency increasing switch S9,
An efficiency setting dial 28 and a removal rate setting dial 29 are provided. Further, as a display device, a manual / automatic LEDLA that lights up during automatic operation, a glutinous rice cake / glutinous LEDLB that lights up when sticky rice, a paddy mixed LEDLC that lights up during paddy mixing adjustment, and a damaged rice that lights up during damaged rice adjustment LEDLD, efficiency reduction LEDLE that lights up during efficiency adjustment, efficiency increase LEDLF that lights up during efficiency adjustment, paddy hopper abnormality LEDLG that lights up when there is no paddy, paddy supply control valve abnormality LEDLH that lights up when the paddy supply control valve is abnormal, Abnormal de-roll roll LEDLI that lights up while developing the de-pull roll, abnormal depletion rate LEDLJ that lights up when the desorption rate detector is abnormal, abnormal rotation selection tube abnormal LEDLK that lights up when the rotation selection tube control is abnormal, and finish rice Finished rice clogging abnormality LEDLL that lights up when jammed, reduced grain abnormality LEDLM that lights up when abnormalities of reduced grain, and point when the position of the finishing valve lever is abnormal To finish valve lever abnormal LEDLN, the main mode - turns on after motor overload abnormal overload L
An EDLO, a tilt adjustment LEDLP for displaying that the tilt of the rotary selection tube is being adjusted, and a liquid crystal display device (hereinafter, referred to as LCD display device) 30 are provided. Reference numeral 31 is a paddy supply amount detector, 32 is a supply side grain scattering detector, 33 is an intermediate grain scattering detector, 34 is a shedding rate detector,
Reference numeral 35 is a cylindrical rotation number detector, 36 is a paddy hopper grain detector for detecting the presence or absence of grains in the paddy hopper 2, and 37 is a pulling roll 3 or 3 in which the gap is widened to remove the grain. De-roll for inoperable state De-roll for detecting whether or not in expanded state
38 is a deployment detector, 38 is a finish rice valve opening detector, 39
Is a layer thickness detector, and 40 is a load current detector. These detectors and switches are input to the arithmetic control unit 41 via an input interface.

Further, the main motor 42 and the removing unit 1 are connected from the arithmetic and control unit 41 through an output interface and a drive circuit.
Paddy feed control valve control motor 44 for adjusting the paddy feed control valve 43, a rotation speed control motor 45 for adjusting the rotation speed of the rotary selection cylinder 11, and a roll for adjusting the clearance between the removing rolls 3 and 3. Is connected to the clearance control motor 46. Then, when the detection information from these detectors is input to the arithmetic control unit 41, the following control is performed. [Initial check] Operation panel 27 when power is turned on
This is to check the display of. When the power is turned on, all the LEDs are turned on for a predetermined time, the buzzer 57 sounds, and the LCD display device 30 displays "A message to the operator."
Is displayed. During this initial check, input is prohibited even if other switches are operated, and after this initial check is completed,
This is a configuration in which the start switch S1 can be turned on. [Rotation Selection Cylinder Rotation Speed Setting Operation Mode] In this operation mode, the operator sets and operates the rotation selection cylinder 11 at its own desired rotation speed before starting work. . Each time the efficiency lowering switch S8 is turned on once before the start switch S1 is pushed, the rpm decreases by 1 rpm from the initial setting rotational speed described later, and the efficiency raising switch S9 is turned on by one.
Each time it is turned on, the number of revolutions is increased by 1 rpm from the initially set number of revolutions. This number of revolutions can be set from the end of the initial check until the start switch S1 is turned on. When this speed is set, LC
The D display device 30 is configured to display the current set rotational speed, and the set rotational speed can be set within a predetermined rotational speed range (for example, 45 to 56 rpm). [Overload processing] This control is used during the hull sorting operation.
The load current of the main motor 42 increases due to factors such as excessive closing of the gap between the rulers 3 and 3 and clogging of the transfer device, thereby preventing work interruption due to the breaker dropping.

The signal voltage from the load current detector 40 is measured every predetermined time a predetermined number of times, and this average value is measured as the current main mode.
The load current value of the switch 42. This current value is used as a minute overload (for example, 95% to less than 120% of breaker capacity), a light overload (for example, 120% to less than 150% of breaker capacity), and a heavy overload (for example, breaker capacity). (150% or more of the capacity) and the following control is performed. FIG. 6 shows the time chart. In the case of heavy overload: When the time is less than a predetermined time (for example, 2 seconds), the buzzer 57 and the overload abnormality LEDLO notify the same, and the LCD display device 30 displays that fact. The motor 42 is stopped. In case of light overload or micro overload a. In the automatic operation mode, if there is a slight overload during each control, a close command signal is output to the paddy supply control valve control motor 44 until the load current reaches 95% of the breaker capacity, and the load is removed. The opening degree of the paddy supply control valve 43 of the pump section 1 is adjusted to the closed side. Further, the case of various automatic controls will be specifically described. b. The following control is performed during the load current control.

When a light overload is detected, a close command signal is output to the paddy supply control valve control motor 44 to adjust the opening of the paddy supply control valve 43 of the removing unit 1 to the closing side, so that the load current is reduced. Blur
Reduce the load until it reaches 95% of the capacity. After the load is reduced in this way, the load current is measured every predetermined time, and when it becomes 95% or less of the breaker capacity, an open command signal is output to the paddy supply control valve control motor 44, Removing part 1
The opening degree of the paddy supply control valve 43 is adjusted to the open side. In addition,
At this time, the overload abnormality LEDLO and the LCD display device 30 inform or display that there is an overload. FIG. 7 shows this time chart. c. In the case of the removal rate control, the following control is performed.

When the light overload is measured, the same control as the b-load current control described above is performed by the paddy supply control valve control motor 44 ,.
The paddy supply control valve 43, the overload abnormality LEDLO, and the LCD display device 30 are provided. However, the closing control output of the paddy supply control valve 43 is stopped when the paddle supply control valve initial opening set value, which will be described later, is reached, and the paddy supply control valve 43 is closed.
Even if the opening degree of is less than or equal to the initial opening set value of the paddy supply control valve, if the overload is still present, the set removal rate is a predetermined percentage (for example, 3%).
A command signal to lower the output is output, and then the removal rate control is continued. Note that FIG. 8 shows a time chart of this control. d. In the case of setting the initial opening degree of the paddy supply control valve described later, the same control as the b load current control described above is performed.

The overload process starts when the main motor 42 is started and ends when the main motor 42 is stopped. During the overload process, the overload abnormality LEDLO and the LCD display device 30 display that fact at the time of heavy overload and light overload, but do not show these at the time of slight overload.

In the manual operation mode, this overload control is not performed and the load current value is displayed on the LCD display device 30. [Overloading process due to paddy roll clogging] When the main motor 42 is started in a state where residual grains are blocked on the deroll rolls 3, 3, the dep rolls 3, 3 Grain is bitten in and becomes an overload. In this case, it is necessary to operate the de-rolling roll developing lever 54 to open the gap between the de-rolling rolls 3 and 3 to clear the grain clogging, and then restart the main motor 42. There is.

In this process, when the unplugging of the derolling rolls 3 and 3 is detected, the unpacking abnormality LED LQ and the LCD display device 30 are lit or the characters are displayed. If it is a predetermined time (for example, 4 seconds) after the start switch S1 is turned on and the heavy overload continues for 2 seconds, the heavy overload process is performed and the main motor 42 is stopped.

In this embodiment, the padding of the removing rolls 3 and 3 is detected by detecting the overload current. However, the light emitting element and the light receiving element are provided in the vicinity of the removing rolls 3 and 3. Alternatively, an optical detector (not shown) configured in (1) may be arranged to perform detection. Next, FIGS. 9 to 10 will be described. The arithmetic and control unit 41 includes a deroll roll expansion detector 37,
The load current detector 40, the start switch S1 and the stop switch S2 are connected via an input interface (not shown), and the arithmetic control unit 41 is connected via an output interface (not shown). Rice paddy abnormality LED LQ,
The LCD display device 30 and the main motor 42 are connected and the following control is performed. Note that FIG. 10 shows a flowchart. When the start switch S1 is turned on, the main motor 42 is activated, and the load current detector 40 measures the load current of the main motor 42. The measured load current value is compared with the set reference current value, and if it is equal to or less than the set reference current value, the process proceeds to the initial setting of the clearance of the derolling roll in the next process, or the set reference current value or more. If it is, it is determined that the dew rolls 3 and 3 are clogged with rice,
The main motor 42 is stopped, the paddy LED LQ is informed that the paddy is abnormal, and the LCD display device 30 displays "Please unfold the roll" to start. The input of the switch S1 is prohibited. Next, when the detection result is input from the derolling roll development detector 37 and the derolling rolls 3 and 3 are developed, the display of the abnormal paddy LED LQ and the LCD display device 30 is stopped and started. The input prohibition measure of the switch S1 is released.

With this structure, the removal process
It is possible to prevent the removal operation of the tools 3 and 3 in a paddy state and prevent the machine from being damaged or the breaker from falling. In this configuration, when the load current detector 40 detects the clogging of the derolling rolls 3, 3 by the load current detector 40, an opening signal of the derolling rolls 3, 3 is output to the roll gap control motor 46 for a predetermined time. And output
Alternatively, the derolling rolls 3 may be automatically expanded. [Overload processing during open-phase operation] This overload processing is performed by the main mode.
This prevents the open phase operation of the main motor 42 due to a poor connection of the motor 42.
During the second ON, the load current value is a predetermined reference value (for example,
The main motor 42 is stopped when a predetermined time (for example, 2 seconds) continues for 2.5 amperes or less. If the arithmetic control unit 41 determines that the phase is missing, the overload abnormality L
The EDLO lights up, the buzzer 57 intermittently sounds, and the LCD display device 30 indicates that the phase is open and connection check is required.

Next, a more specific description will be given with reference to FIGS. 11 and 12. A load current detector 40, a start switch S1 and a stop switch S2 are connected to the arithmetic control unit 41 via an input interface (not shown), and the arithmetic control unit 41 has an output interface (illustration). (Not shown), the roll clearance control motor 46, the overload abnormality LED LO, the LCD display device 30, and the main motor 42.
Is connected and the following control is performed. When the start switch S1 is turned on, the main motor 42 is activated, and the load current detector 40 measures the load current of the main motor 42. The measured load current value is compared with the set reference current value, and if it is equal to or larger than the set reference current value, the process proceeds to the initial setting of the clearance of the removal roll, which will be described later in the next step, and the set reference current value. When the value is less than the predetermined value for a predetermined time, it is determined that the main motor 42 is out of phase, the main motor 42 is stopped, and the overload abnormality LED
The LO is notified that there is an abnormality in the main motor 42, and the LCD display device 30 is displayed with the message "Check the main motor for a missing phase and the connection of the main motor." The input of the switch S1 is prohibited.

If a phase failure occurs due to a poor connection of the main motor 42, the load current will drop, so if the load current is controlled based on the gap between the derolling rolls 3 and 3, the gap will be closed. Continuously, the breaker drops or the fuse breaks. However, such a problem can be prevented by configuring as described above. Incidentally, FIG. 12 shows a flowchart of this processing. [Contact prevention treatment of depulling roll] During the hulling operation, the paddy supply control valve 43 of the deplacing section 1 is closed, and the paddy supply to the depulling rolls 3 is lost. If it is under control, the load on the derolling rolls 3, 3 will decrease, and the derolling rolls 3, 3 will come into contact and wear. In order to prevent such a problem, when the paddy supply control valve 43 is fully closed, the gap between the derolling rolls 3 and 3 is opened to some extent. Is opened until the no-load current value is reached. The gap between the derolling rolls 3 and 3 that can be opened is the same as the initial gap setting for the derolling rolls 3 and 3 described later.

Even when the paddy hopper 2 of the stripping unit 1 is no longer paddy, the stripping rolls 3 and 3 may also come into contact with each other. In this case, the rotation selection cylinder 11 just before the end of the work
There is a case where the residual grains are discharged, and the reduced grains from the rotary selection cylinder 11 may be supplied to the derolling rolls 3 and 3. Therefore, this process is not performed immediately and When the paddy hopper grain detector 36 of the hopper 2 continues to detect no grain for a predetermined time (for example, 20 seconds), the derolling roll 3,
3 is a configuration in which the gap is widened until there is no load. [De-roll roll gap initial setting control] In this control, the gap between the de-roll rolls 3 and 3 is set to a predetermined gap (for example, 0.8 m) at the initial stage of the hulling operation by a known de-roll roll gap adjusting means.
m), the load current value of the main motor 42 is detected by the load current detector 40, and the contact of the removing rolls 3 and 3 is detected to remove the removing rolls 3 and 3. Remove for a specified time after contact
The gap is widened to adjust to a predetermined gap. In addition,
FIG. 13 is a cut side view showing a known dep roll clearance adjusting means. Next, the control content will be specifically described. The load current value of the main motor 42 is measured by the load current detector 40 at predetermined time intervals while the roll clearance control motor 46 outputs the roll clearance to open the roll clearance control motor 46. When the difference is less than or equal to a predetermined value, it is determined that there is no load,
Stop the open roll output. Then, the roll gap control motor 46 is subjected to a de-rolling closing output, the load current value is measured at every predetermined time, and when the no-load current value × K (K is a constant) exceeds the predetermined value, the de-rolling is performed. -It is judged that the roll is slightly touching, and the removal roll closing output is stopped. Then, the derolling roll opening output is output for a predetermined time to form a predetermined derolling roll gap. The output of the drive command signal to the open side of the paddy supply regulating valve 43 is calculated from the arithmetic control unit 41 from a predetermined time (for example, 1 second) before the end of the removal roll opening output.
To the paddy supply control valve control motor 44.

In this embodiment, the main motor 42 drives all the drive parts of the hulling and sorting machine.
May be driven by a dedicated motor. [Operation mode] The operation modes include automatic operation mode, manual operation mode and emergency operation mode (the cable from the power supply to the control box is removed and the main motor 42 is connected to the cable). The operation is switched to complete manual operation.) And can be switched to automatic or manual by operating the manual / automatic switch S4. When the automatic operation is switched to the manual operation, various automatic control outputs from the arithmetic and control unit 41 are stopped, and the manual LED of the automatic / manual LED LA is
The side lights up. When the automatic operation is switched to during the manual operation, the paddy supply control valve 43 of the removing unit 1 is completely closed, as shown in FIG.
According to the sequence table shown in FIG. 2, initial setting of the depulling roll gap, initial setting of the rotational speed of the rotary selection cylinder 11, etc. are started.
When the automatic operation is restarted after the automatic operation is interrupted, the data of the previous detectors may be stored and the work may be restarted based on the previous data.

During the automatic operation, the paddy supply control valve 4 of the removing unit 1
When 3 is fully closed, the arithmetic and control unit 41 determines that the work is interrupted, and the next control, that is, the paddy supply control valve control, the fully closed state of the paddy supply control valve 43 is held, and the operator operates the paddy. When the paddy supply adjusting valve 43 is opened by a predetermined opening (for example, 5 mm) or more by operating the supply adjusting lever, it can be opened up to the opening during the previous work. Rotating sorting cylinder control Continue automatic control. Depulling Roll Control By fully closing the paddy supply control valve 43, contact prevention processing of the depulling rolls 3 and 3 described later is performed, and then the clearance between the depulling rolls 3 and 3 from the arithmetic control unit 41. When the regulation output is stopped and the paddy supply regulating valve 43 is opened again to the predetermined opening, the dep roll gap at the previous work is opened to continue the paddy sorting operation. [Initial Rotation Speed Setting Control of Rotation Sorting Cylinder] This is the rotation speed control of the rotation sorting cylinder 11 in the initial stage of the hulling sorting operation, and the main motor 42 is not in the initial setting control of the removal roll gap. After the load current value is measured, the rotation of the rotary sorting cylinder 11 is continued for a certain period of time, that is, until the paddy supply control valve 43 of the removing unit 1 is opened and the mixed rice is supplied to the rotary sorting cylinder 11 to be sorted. The number is maintained at the set speed.

As shown in FIG. 14A, the sorting case 1
From the end on the side of the removing unit 1 of 0, the shaft end 15a of the finished rice helix 15 and the shaft end 13a of the supply helix 13 and the shaft end 59a of the drive roller shaft 59, 59 for driving the drive rollers 12, 12. , 59a to the removing section 1 side and extend it,
Attaching pulleys 60, 60, ... To the shaft end portions 13a, 15a, 59a, 59a, respectively, these pulleys 6
A transmission belt 61 is wound around 0, 60, .... Of the pulleys 60, 60, ..., the pulley 60 attached to the shaft end portion 15a of the finishing rice spiral 15 is configured as a continuously variable transmission pulley 60a that expands and contracts by a spring, and the positive rotation speed of the rotation speed control motor 45 is increased. As shown in FIG. 14A, from the end on the side of the removing unit 1 of the sorting case 10, the shaft end 15a of the finishing rice spiral 15 and the shaft end 13a of the supply spiral 13 and the drive rollers 12, 12 are provided. Shaft ends 59a, 59a of drive roller shafts 59, 59 for driving the shafts are extended to the side of the removing unit 1 so that the shaft end parts 13a, 15a, 59
The pulleys 60, 60, ... Are attached to a and 59a, and the transmission belt 61 is wound around these pulleys 60, 60 ,. Of the pulleys 60, 60, ..., the pulley 60 attached to the shaft end portion 15a of the finishing rice spiral 15 is configured as a continuously variable transmission pulley 60a that expands and contracts by a spring, and the positive rotation speed of the rotation speed control motor 45 is increased. By rotating or reversing, the tension pulley 6 of the tension arm 62
3 moves in the direction of the arrow, the effective diameter of the continuously variable transmission pulley 60a is expanded / contracted, and the rotation speed of the transmission belt 61 is changed / adjusted. As a result, the rotation speed of the rotation selection cylinder 11 is increased / decreased. It

Next, the control content will be specifically described. When the start switch S1 is turned on, the main motor 42 is started, and this control is started after a predetermined time (for example, 4 seconds) has elapsed after the main motor 42 was started. The rotation speed for one minute is calculated from the time required for the predetermined rotation speed (for example, 2 rotations) of the rotation selection cylinder 11 and is compared with the set rotation speed, and the measured rotation speed is larger than the predetermined rotation speed (for example, the predetermined rotation speed). When it is higher than 2 times, a command signal for reducing one rotation (rpm) at a short predetermined time interval (for example, 2 seconds) is output, and the measured rotation speed is higher than the set rotation speed by a predetermined rotation speed (for example, once). In this case, a command signal for reducing one rotation (rpm) at a long predetermined time (for example, 4 seconds) is output, and when the measured rotation speed is lower than a predetermined rotation speed (for example, two times) higher than the set rotation speed, , A command signal to increase one rotation (rpm) at short predetermined time intervals (for example, 2 seconds) is output, and one rotation (rpm) is increased at predetermined rotation speeds (for example, 4 seconds) at which the measured rotation speed is smaller than the set rotation speed. A command signal is output. Every time the rotation selection cylinder 11 rotates twice during that time, the rotation speed is measured and calculated, and when the rotation speed reaches the set rotation speed, the output of the rotation speed change command signal is stopped.

A predetermined time (for example, 30 seconds) after the paddy supply control valve 43 is opened to start the work (usually, after the start of hulling, the rotary sorting cylinder 11 starts the sorting work, and the grain scattering detector on the feeding side is started. 32 or the time until the intermediate grain scattering detector 33 starts detecting the grain) or after the supply side grain scattering detector 32 or the intermediate grain scattering detector 33 detects the grain. Once started, this rotation speed initialization control ends.

During this control, the rotation speed of the rotation selection cylinder 11 is equal to or higher than the maximum rotation speed, is equal to or lower than the minimum rotation speed, or is the rotation speed after a predetermined time despite the output of the rotation speed adjustment command. If is not changed, it is determined to be abnormal, and the rotation speed initialization control is stopped. Further, when it is determined that there is an abnormality, the fact is displayed on the rotation selection tube abnormality LED / LK or the LCD display device 30. [Adjustment of Rotational Speed of Rotating Sorting Cylinder] When the efficiency lowering switch S8 is pressed, the rotational speed of the rotating sorting cylinder 11 is lowered from the standard rotational speed or the initially set rotational speed by a predetermined rotational speed (for example, 1 rpm) to rotate, Alternatively, when the efficiency raising switch S9 is pressed, the rotation speed of the rotation selection cylinder 11 is changed from the standard rotation speed or the initial setting rotation speed to a predetermined rotation speed (for example, 1 rpm).
Rotate high.

A detailed description will be given below. When the efficiency lowering switch S8 is turned on, the arithmetic control unit 41
Outputs a command signal to decrease the rotation speed for a predetermined time from the rotation speed control motor 45, the rotation speed decreases by a predetermined rotation speed (for example, 1 rpm), and L of the operation panel 27 is adjusted while the rotation speed is being adjusted.
Characters are displayed to that effect on the CD display device 30 or the efficiency reducing LED LE is turned on to inform that the low sorting efficiency and the good sorting finish are being adjusted.

When the efficiency increasing switch S9 is turned on, the arithmetic control unit 41 outputs a command signal for decreasing the rotational speed for a predetermined time to the rotational speed control motor 45 to adjust the rotational speed to a predetermined rotational speed (for example, 1 rpm) to be high. While adjusting the number of revolutions, a message is displayed to that effect on the LCD display device 30 of the operation panel 27, or the efficiency raising LEDLF is turned on to inform that the high sorting efficiency and rough sorting finish are being adjusted. To do.

On the operation panel 27, an efficiency lowering switch S8 and an efficiency raising switch S9 are arranged in parallel,
When the efficiency lowering switch S8 is pressed again while the rotational speed is being reduced and adjusted,
The second switch ON is invalidated, and the arithmetic control unit 41
In order to prevent the erroneous operation of the operator by the configuration in which the rotation speed reduction command signal is not output, and when the efficiency increase switch S9 is pressed during the decrease adjustment of the rotation speed by pressing the efficiency decrease switch S8, When the efficiency increasing switch S9 is turned on, the arithmetic control unit 41 stops the rotation speed reduction command signal and immediately outputs the rotation speed increase command signal.

Further, even if the efficiency increasing switch S9 is pressed again during the adjustment of the rotational speed increase, the second operation is invalidated as described above, but the efficiency decreasing switch S8 is pressed during the adjustment of the rotational speed increase. If so, the rotational speed increase adjustment is stopped and the rotational speed decrease adjustment is performed. In addition,
FIG. 14B shows this flowchart.

As shown in FIG. 4, the operation panel 27 is provided with an automatic / manual switch S4. When the automatic / manual switch S4 is pressed, an automatic / manual LEDLA for displaying automatic operation or manual operation is displayed. Can be switched instantly, and the LCD display device 30 of the operation panel 27 can instantly display "switch to manual" during automatic operation or "switch to automatic" during manual operation. If the automatic / manual switch S4 is not operated by the operator's intention for a few seconds after starting, it is considered that the input of the automatic / manual switch S4 is confirmed, and the automatic operation or the manual operation is started. I am trying. If the opposite operation is performed during that time,
The automatic / manual selector switch S4 is switched to the side operated later. Therefore, when the automatic / manual changeover switch S4 is operated by mistake, there is a blank time of several seconds until the actual changeover, so that the operator can correct the error during that time.

During this control, if the grain-scattering detector 32 on the supply side or the grain-scattering detector 33 on the intermediate portion detects a grain, this control is interrupted, and the rotary sorting cylinder explained next. When the follow-up prevention control of 11 is prioritized and the follow-up prevention control is completed, the process proceeds to the instruction stroke of the finish valve adjusting lever for operating the finish rice adjusting valve 16a described later. Next,
The following prevention control will be described. The number of rotations of the rotary selection cylinder 11 is increased, the grain is scraped up more, and the supply side grain scattering detector 31 or the intermediate portion grain scattering detector 32 is provided.
Detects a grain and the detection information is input to the arithmetic control unit 41, the output of the rotation speed increase command signal is stopped, and the rotation speed decrease command signal is output from the arithmetic control unit 41 for a predetermined time to rotate the rotation speed. The number is reduced by a predetermined number of revolutions (for example, 1 rpm), and if the supply side grain scattering detector 31 or the intermediate grain scattering detector 32 detects grains even after the rotation number reduction adjustment, the same The reduction adjustment is continued, and when the supply side / intermediate portion grain scattering detectors 31, 32 are no longer detected, the reduction adjustment is stopped. [Instruction of Finishing Valve Adjusting Lever] Next, an instruction process of the finishing valve adjusting lever 48 will be described. When the supply side / intermediate part grain scattering detectors 31 and 32 still detect the grains even when the number of rotations of the rotation selection cylinder 11 reaches the minimum number of rotations, the number of rotations from the arithmetic control unit 41. When the output of the reduction command signal is stopped and the efficiency reduction switch LE is pressed, the LCD panel 3 displays a message on the operation panel 27 indicating that the finish valve adjusting lever 48 is received and the area is reduced.
Display at 0. Instead of displaying this message, a command signal from the arithmetic control unit 41 may be output to the finishing valve control motor (not shown) to automatically adjust the finishing rice control valve 16a. [Scattering Position Adjustment Control of Rotating Sorting Cylinder] This adjusting control determines the scattering position of brown rice to the finishing rice gutter 16 based on the rotation speed initial setting control of the rotating sorting cylinder described above, near the upper end of the finishing rice gutter 16 (for example, The number of revolutions is adjusted so that the position is about 30 mm lower than the upper end), and an appropriate number of revolutions is obtained.

A supply side grain scattering detector 31 is arranged near the upper end of the finished rice gutter 16 and a middle side grain scattering detector is provided at a portion corresponding to the reduction rack 24 in the middle portion. 32 are arranged. The supply side grain scattering detector 31 and the intermediate grain scattering detector 32 are capable of detecting the presence or absence of scattering and the number of grains, and the presence or absence of scattering is determined by a predetermined number of grains at a predetermined time (for example, 5 seconds) ( For example, when 10 or more grains are detected, it is determined that the grains are scattered, and when it is detected that the number of grains is equal to or less than a predetermined number in a predetermined time, it is determined that the grains are not scattered.

When the number of revolutions of the rotation selection cylinder is initialized and the grain scattering detector 31 on the supply side and / or the grain scattering detector 32 at the intermediate portion has no grain scattering,
A command signal for increasing the number of revolutions by one revolution (rpm) is output from the arithmetic and control unit 41 to increase the number of revolutions, and the supply side grain scattering detector 31 and / or the intermediate grain scattering detector 32 When detecting the scattering of grains, the arithmetic control unit 41 outputs a command signal for lowering the rotation speed by one rotation (rpm),
The adjustment control ends with a predetermined number of rotations (for example, one rotation) lowered.

With the initial setting of the rotational speed described above,
When the supply-side grain scattering detector 31 and / or the intermediate grain scattering detector 32 has grain scattering, the arithmetic control unit 41
From this, a command signal for decreasing the number of revolutions by one revolution (rpm) is output, and the number of revolutions is sequentially decreased, and the supply side grain scattering detector 31 and / or the intermediate grain scattering detector 32,
When the non-scattering of the grain is detected, the output of the command signal for decreasing the rotation speed from the operation control unit 41 by one rotation (rpm) is stopped, and the rotation speed control ends.

The scattering position adjusting control is started immediately after the rotation speed initializing control of the rotary sorting cylinder 11 is completed or after a predetermined time has elapsed, and the supply side grain scattering detector 31 and the intermediate grain are detected. In the normal state where both the scattering detectors 32 do not scatter the grains, and in the state where this state is maintained, the rotation speed of the rotation selection cylinder 11 can be adjusted by another rotation speed adjustment control, and the stop switch. When 2 is turned on, this control ends. [Attachment Prevention Control of Rotating Sorting Cylinder] This control controls the number of rotations of the rotating sorting cylinder 11 so that the grains adhere to the inner peripheral surface of the rotating sorting cylinder 11 so that brown rice does not fall onto the finished rice gutter 16. It is intended to prevent the above and improve the sorting efficiency.

This control is carried out by the grain detection by the grain scattering detector 31 on the supply side and / or the grain scattering detector 32 in the middle portion. This is the same as the adjustment control, and is started after the rotation speed initialization control of the rotation selection cylinder 11 is completed, and the stop switch S2 is turned on.
This is carried out until the main motor 42 is stopped after being turned off. However, if the mode is switched to the manual operation mode during this control, the output of the rotation speed adjustment command signal from the arithmetic and control unit 41 is stopped, and this control is stopped.

When the supply-side grain scattering detector 31 and / or the intermediate grain scattering detector 32 detect the scattering of the grains, the arithmetic control unit 41 sends a command signal for lowering the rotation speed by 1 rpm every predetermined time. When the output-side grain scattering detector 31 and / or the intermediate grain scattering detector 32 stop detecting the scattering of the grains, the output of the rotation speed adjustment command signal is stopped,
This rotation speed is held.

The signals of the supply side grain scattering detector 31 and the intermediate grain scattering detector 32 are read every predetermined time (for example, 5 seconds), and when the grain scattering is detected,
Control is performed to reduce the rotation speed by 1 rpm. Further, at the lower limit rotation speed of the rotation selection cylinder 11, the supply side grain scattering detector 31
And / or when the intermediate grain scattering detector 32 detects the scattering of the grains, it is determined to be abnormal, this control is stopped, and the rotation selection cylinder abnormality LEDLK is lit on the operation panel 27, and the LCD is displayed.
An error is displayed on the display device 30.

When the grain scattering detector 32 on the supply side or the grain scattering detector 33 at the intermediate portion detects grain scattering and the arithmetic control unit 41 adjusts the number of revolutions, the scattering is performed at the upper limit number of revolutions. When the number of particles is equal to or less than the predetermined number of particles, it is determined to be abnormal, the number of revolutions is returned to the initial number of revolutions set, and the scattering position adjustment control is ended. In a normal state, the supply-side grain scattering detector 32 and / or the intermediate grain scattering detector 33 detect a predetermined number or more of grains, but the predetermined number of grains is detected despite the upper limit number of revolutions. Detecting less than the number of grains is an abnormality of the detector. In this state, the rotation speed is too high, and if the selection is continued as it is, paddy rice will be mixed with brown rice. However, as described above, the number of revolutions is reduced to the initial number of revolutions, so that such a problem can be prevented. It should be noted that instead of returning to the initial setting rotation speed, the configuration may be such that the standard rotation speed is returned.

FIG. 15 shows this flow chart. In addition, in the state in which the initial setting rotation speed of the rotation selection cylinder 11 is set as described above, the number of grains corresponding to the supply side grain scattering detector 32 and / or the intermediate grain scattering detector 33 is 0 in a predetermined time. In some cases, the arithmetic control unit 41 determines that the detector is abnormal, and does not shift to the scattered position adjustment control of the rotary selection cylinder 11. When there is no abnormality in the supply side grain scattering detector 32 and / or the intermediate grain scattering detector 33, the grain is usually detected, but the grain is not detected by the detector. The cause is an abnormality. In this state, if the number of rotations of the rotary selection cylinder 11 is adjusted based on the supply side / intermediate part grain scattering detectors 32 and 33, the number of rotations becomes high, and there is a problem that paddy rice is mixed with brown rice. It is possible to prevent such problems. The flow chart is as shown in FIG.

Next, FIGS. 17 and 18 will be described. The number of grains in the detector is detected by detecting the number of grains in the supply side grain scattering detector 32 and / or the intermediate portion grain scattering detector 33 and adjusting and controlling the rotation number of the rotary selection cylinder 11. This will be described in detail below. In manufacturing the rotary selection tube 11, a flat metal plate is pressed into a pot hole, which is then rounded into a cylindrical shape and spot-welded at the joint end of the metal plate. For this reason, since the spot welded portion at the end is a flat plate portion without a pothole, the grain scratching action is weak, and the detection state by the detector is 5 to 7 grains as shown in FIG. It was found that while a large number of detection signals continue a plurality of times, a detection signal with a small number of particles, such as about 3 particles, is detected once, and these detection signals are regularly repeated. So even in this situation,
This is intended to improve the detection accuracy of the supply-side grain scattering detector 32 and / or the intermediate grain scattering detector 33, and for this purpose, the following technical measures are taken.

That is, the detection information of the supply side grain scattering detector 32 and / or the intermediate portion grain scattering detector 33 is compared with the reference information, and it is found that it changes at a constant cycle within a predetermined time. , Detection information of a large number of grains, that is, only detection signals of 5 to 7 grains and a large number of grains are added once to plural times for averaging, or detection information with a small number of grains is excluded, and a detector The detection information is used to stabilize the detection result.

The hunting phenomenon of the detection result is
It also occurs when the rotary selection cylinder 11 is not a perfect circle or when the shape of the pot hole is partially deformed. Therefore, such a pattern is used as reference information in the arithmetic control unit 41. If so, the detection result can be stabilized in the same manner as described above. Moreover, when detecting the number of grains of the grain by the supply side grain scattering detector 32 and / or the intermediate grain scattering detector 33, the detection time is at least the time required for the rotary sorting cylinder 11 to rotate at least once. It is also possible to sample and add the number of grains to stabilize the sampling data and improve the detection accuracy.

In adjusting the rotation speed of the rotation selection cylinder 11, even though the rotation speed of the rotation selection cylinder 11 reaches the adjustment lower limit rotation range, the supply side grain scattering detectors 32 and / Alternatively, when the intermediate grain scattering detector 33 detects a certain number or more of grains, the supply side grain scattering detector 32 and / or the intermediate grain scattering detector 3 from the arithmetic control unit 41.
The follow-up control output based on 3 is stopped, and then the detector abnormality check is automatically performed. The arithmetic control unit 41 sends a check signal as shown in FIG. 18 (A) to the supply side grain scattering detector 32 and the intermediate grain scattering detector 33, and a return signal as shown in FIG. 18 (B) is sent. When it is detected, it is determined that there is no abnormality in the detector, and FIG.
When different return signals as shown in (C) are detected, it is determined that the detector is abnormal. As a result, when there is no abnormality in the detector, the follow-up control is restarted, and the detector is abnormal. In this case, the rotation selection tube abnormality LEDLK of the operation panel 27 is turned on to notify the abnormality of the detector, and at the same time, the arithmetic control unit 41 outputs a command signal for setting the above-described initial rotation speed of the rotation selection tube 11. ,
The rotation speed of the rotation selection cylinder 11 is set to the default rotation speed.

By performing such control, although the number of rotations of the rotation selection cylinder 11 is reduced to the lower limit region of the number of rotations, the grain scattering detector 32 on the supply side and / or the grain scattering detection of the intermediate portion is detected. When the container 33 has a detection input of a certain number or more of grains, it is considered that the inside of the detector is some failure and the input of the number of grains is amplified. If such a state is continued, the rotation speed of the rotary selection cylinder 11 is lowered to the lower limit region, the scratching of the grain in the rotary selection cylinder 11 is extremely reduced, and the clogging of the grain in the rotary selection cylinder 11 is reduced. appear.

However, since the rotation speed adjustment by the supply side grain scattering detector 32 and / or the intermediate portion grain scattering detector 33 is stopped and the rotation number is returned to the initial setting rotation number higher than the lower limit rotation, rotation selection is performed. It is possible to improve the selection efficiency of the cylinder 11 and prevent the grain clogging phenomenon. In addition, FIG. 19 shows a flow chart.
It shows the During such control, when the command signal for increasing the rotation speed is output to the rotation speed control motor 45, the rotation speed of the rotation selection cylinder 11 becomes low or does not change after a predetermined time. First, a closing command signal is output to the paddy supply control valve control motor 44 to fully close the paddy supply control valve 43 of the removing unit 1.

When the amount of grains to be sorted in the rotary sorting cylinder 11 increases, the rotary sorting cylinder 11 slips, and the rotation speed decreases or does not change. In the conventional device, in order to prevent such a defect, the layer thickness detector 39 is provided in the rotary selection cylinder 11, and the paddy supply control valve 43 of the removing unit 1 is based on the detection result of the layer thickness detector 39. The amount of supply in the rotary selection cylinder 11 is controlled by adjusting the opening degree of the. However, when the layer thickness detector 39 malfunctions, the amount of grains in the rotary selection cylinder 11 increases, and there is a problem that the main motor 42 is stopped due to overload due to grain clogging. However, such a defect can be eliminated by the configuration described above. Note that FIG. 20 shows a flow chart. [Layer Thickness Control of Rotating Sorting Cylinder] This control is performed by the rotating sorting cylinder 11
In order to secure an appropriate amount of the selected grain in the inside, the fluidized bed thickness of the selected grain in the rotary selection cylinder 11 is detected by the layer thickness detector 39, and the upper limit and the lower limit of the amount of the selected grain are selected. Is set to adjust the opening degree of the paddy supply control valve 43 of the removing unit 1, and
It is intended to optimize the amount of grains to be selected to be supplied to No. 1.

Reference numeral 39 is a layer thickness detector attached to the above-mentioned layer thickness detection shaft 49 and rotated in accordance with the rotation of the layer thickness detection plate 50. Reference numeral 31 is a paddy supply control valve of the removing unit 1. The pad thickness detector 39 and the paddy supply amount detector 31 detect the opening of the pad 43, and the layer thickness detector 39 and the paddy supply amount detector 31 are connected to the arithmetic controller 41 via an input interface. A paddy supply control valve control motor 44 is connected to 41 via an output interface (not shown), and the following control is performed. When the detection information of the layer thickness detector 39 is input to the arithmetic control unit 41 by an electric signal at predetermined time intervals, it is compared with reference information that can be manually adjusted or automatically adjusted, and exceeds the upper limit reference information. The opening reduction signal is output from the arithmetic and control unit 41 via the output interface, the paddy feed control valve control motor 44 rotates to the decrease side, and the paddy feed control valve 43 is closed. Quantitatively adjusted. When the detection information of the layer thickness detector 39 is input to the arithmetic control unit 41 by an electric signal at predetermined time intervals, it is compared with the reference information in the arithmetic control unit 41. An opening degree increase signal is output from the control unit 41 via the output interface, the paddy supply control valve control motor 44 rotates to the increase side, and the paddy supply control valve 43 is adjusted to the increase side by a predetermined amount. . The detection information of the layer thickness detector 39 is input to the arithmetic control unit 41 by an electric signal at predetermined time intervals, compared with the reference information in the arithmetic control unit 41, and in the appropriate reference range,
No change command signal is output from the arithmetic and control unit 41, and the paddy supply control valve 43 maintains the same opening.

This control is carried out by the paddy supply control valve 4 described above.
Starting from the end of the initial opening setting of No. 3, stop switch S2
If the layer thickness detector 39 is abnormal, the control is stopped and the rotation selection tube abnormality LEDLK is turned on, and at the same time, the LCD display device 30 displays "Layer thickness detector check". To do. Further, when the detection information rapidly increases during the detection by the layer thickness detector 39, it is often because the rotation is slipped due to the excessive amount of the grains to be sorted in the rotation sorting cylinder 11, In such a case, the arithmetic control unit 41
A command signal for decreasing the paddy supply control valve 43 of the removing unit 1 by a predetermined amount is output from the removing unit 1 so that the supply amount to the removing unit 1 is adjusted to be reduced, or the layer thickness detector 39 is detecting. In addition, when the detection information sharply decreases, the rotation speed of the rotation selection cylinder 11 increases, and there is a risk that the finished rice gutter 16 may be mixed with the unhulled rice. A command signal for decreasing the rotation speed of the number control motor 45 by a predetermined rotation speed may be output, and the rotation speed of the rotation selection cylinder 11 may be adjusted to be decreased. Note that FIG. 22 shows this flow
A chart is shown.

In the layer thickness detector 39, the paddy supply control valve 43 is used.
In controlling the above, as shown in FIG. 23, the layer thickness detector 39 and the paddy supply regulating valve 43 are interlockingly connected by a mechanical interlocking member 55 including an arm and a rod. The rotation of the layer thickness detecting plate 50 can be detected by the layer thickness detector 39 and input to the arithmetic control unit 41 by an electric signal. A command signal from the arithmetic control unit 41 is used to control the paddy supply control valve control motor 44. It is also possible to output an adjustment command signal to the device and electrically adjust and control the paddy supply adjusting valve 43.

With this structure, the interlocking member 55
Control delay due to rattling can be compensated by electrical control to quickly adjust the paddy supply control valve 43, and even if an abnormality occurs in the electrical control portion, the mechanical interlocking member 55 can be used. It can be replenished by control and stable hull sorting work can be performed. Next, FIGS. 24 to 27 will be described.

Reference numeral 58 denotes a discharge side grain amount detector capable of detecting the state of the grain picked up at the discharge side portion of the rotary sorting cylinder 11, and this discharge side grain amount detector 58 is an input interface. Connected to the arithmetic control unit 41 via the face,
A paddy supply control valve control motor 44 is connected to the arithmetic and control unit 41 via an output interface, a forward rotation drive circuit and a reverse rotation drive circuit.

Next, the control contents will be described. If the detection amount of the discharge side grain amount detector 58 is within the range of the set reference value, the adjustment command signal is not output and the paddy supply adjusting valve 4
3 maintains the same position, and when the detection amount of the discharge side grain amount detector 58 is larger than the set reference value, the arithmetic control unit 41 outputs an adjustment command signal to the forward rotation drive circuit, and When the supply control valve control motor 44 is normally rotated for a predetermined time, the paddy supply control valve 43 is adjusted to the decrease side, and the discharge side grain amount detector 58 has a detector amount smaller than the set reference value, the calculation is performed. An adjustment command signal is output from the control unit 41 to the reverse rotation drive circuit, the paddy supply control valve control motor 44 is reversely rotated for a predetermined time, the paddy supply control valve 43 is adjusted to the increasing side, and the inside of the rotary selection cylinder 11 is adjusted. The amount of grains is appropriately maintained. [Supply amount control and load current control] This control is a removal process.
It is performed after the initial clearance setting of the holes 3 and 3 and the initial opening degree setting of the paddy supply control valve 43 is completed and before the removal rate control is entered, and the paddy supply is performed according to the adjustment setting of the efficiency setting dial 28. The control valve 43 is opened, and paddy corresponding to the control setting is supplied. At this time, if the gap between the removing rolls 3 and 3 is left at the initial setting, the load current value increases or decreases. The gap between the removal rolls 3 and 3 is adjusted according to the increase / decrease in the load current value.

This control is started after the light amount adjustment of the removal rate detector 34 is completed and before the removal rate control is started. The load current setting reference value is the breaker capacity. The predetermined reference value (for example, 85%) is set and the setting reference value is adjusted to be large or small in relation to the large or small setting of the efficiency setting dial 28, and the dropout rate is prevented from decreasing. When a large layer thickness of the layer thickness detector 39 is detected during this control and a close adjustment signal is output to the paddy supply control valve 43, the layer thickness control of the rotary selection cylinder 11 is prioritized.

The operation / control section 41 is connected to the mochi / whip switch S5 and the efficiency setting dial 28, and when the mochi / wool switch S5 is switched to the whip, the removal roll 3, The clearance control of 3 is switched from the removal rate control or the adjustment control of the paddy supply control valve 43 of the removal section 1 to the reduction grain amount control, and the removal rate control according to the adjustment amount of the efficiency setting dial 28 is performed. The load reference current value is set, and when the mochi / wool switch 5 is switched to mochi, the clearance control of the removal rolls 3 and 3 is switched to the load current control to set the efficiency. The reference value for load current control is set according to the adjustment amount of the dial 28.

When the depitting rate detector 34 judges unhulled rice and brown rice based on the amount of transmitted light, if it is glutinous rice or milky white rice such as sake rice, the unhulled rice / brown rice determination is not accurate and the unhulled rate is high. There is a drawback that the control becomes inaccurate and the sorting work cannot be performed efficiently. However, with the above-described configuration, such a drawback can be eliminated, and the configuration can be simplified by sharing the adjustment dial. [Remove rate calculating process] This process is performed by the above-described remove rate detector 3
The threshold value of paddy and brown rice is calculated from the grain number and voltage distribution of a prescribed grain number (for example, 2000 grains) of the demixed mixed rice that has been started after the end of the light intensity control of No. 4, and the removal rate is determined by the number of grains. Is calculated.

In this embodiment, as shown in FIG. 28, the following conditions, that is, a predetermined number of grains (for example, 2000 grains) are distributed to a predetermined number of blocks (for example, 64) for each measurement voltage, and brown rice grains are distributed. The calculation processing is performed when the peak distribution of the number falls within a predetermined block (for example, 14 to 23 blocks). (1) Brown Rice Block Calculation In the calculation process, assuming that the distribution of the number of grains and the voltage is as shown in FIG. 28, the brown rice block is the peak of the number of grains of brown rice,
That is, with reference to (1) of FIG. 28, the light quantity integration of a block having a number of particles equal to or larger than the number of particles obtained by subtracting a predetermined number (for example, 25) from the number of particles, that is, (voltage of the block number) × (the block) The added value of the number of particles) is divided by the added value of the number of particles to obtain a voltage value.

If the number of blocks having the number of grains equal to or larger than "the number of peak grains-the predetermined number of grains" is not more than the predetermined block (for example, 10 blocks), the predetermined number of higher blocks (for example, 10 blocks). ) Performs the same calculation as above. (2) Paddy Block Calculation To explain the paddy block calculation, a predetermined number of grains (eg, 5 grains) from the grain side of the total grain number (eg, 2000 grains).
The block obtained by cutting the (grain) is set as the maximum voltage block, and the light amount integration of a predetermined number of higher blocks (for example, 10 blocks), that is, the added value of (voltage of the block number) × (number of grains of the block) The voltage value is divided by the added value of the number of particles. (3) Boundary Block Calculation Next, the calculation of the boundary block will be described. (1)
Based on the average voltage value of the brown rice block obtained in step 1 and the average voltage value of the paddy block obtained in step (2), the boundary block voltage value is calculated by the following formula.

(AB) × K + B = Boundary block voltage value Note A: Average voltage value of paddy block B: Average voltage value of brown rice block K is a constant and the number of upper predetermined blocks for calculating the paddy block average voltage (for example, It is determined as follows by the number of grains of 10 blocks).

Less than 100 grains K = 0.55 100 to 149 grains K = 0.47 150 grains or more K = 0.40 (4) Calculation of removal rate Boundary block voltage value and number of grains obtained in (3) above By using, the removal rate is calculated by the following formula.

C / D × 100 (%) Note C = total grain number of all blocks-total grain number of blocks having a boundary voltage or higher D = total grain number of all blocks [Pudging rate control] Based on the signal voltage of the grain detected by the rate detector 34, the rice removal rate is calculated by discriminating between unhulled rice and brown rice, and the removal rate is set so that the calculated removal rate is the set removal rate. The gap between the removing rolls 3 and 3 of the part 1 is adjusted.

Next, the structure will be described. As shown in FIG. 14, the removal rate detector 34 is connected to the arithmetic control unit 41 via the input interface, and the arithmetic control unit 4 is connected.
1 is an output interface, a removal roll opening drive circuit,
Roll clearance control motor 4 via a de-rolling closed drive circuit
6 is connected. Next, the time chart shown in FIG.
In the following, when the initial clearance of the derolling rolls 3 and 3 is set and the opening of the paddy supply control valve 43 is initially set to a predetermined opening, the above-mentioned deplacing is performed. The light amount adjustment of the rate detector 34 is adjusted. A certain number of grains (for example, 2000 grains) of rice every predetermined time
The brown rice discriminating voltage is calculated, and thereby the take-out rate for each predetermined time is calculated. The detected removal rate and the set removal rate are compared. When the removal rate is lower than the set removal rate, the arithmetic control unit 41 sends a close signal to the roll clearance control motor 46 for a predetermined time. Output
The gap between the removing rolls 3 and 3 is narrowed. The detected removal rate is compared with the set removal rate, and if the detected removal rate is higher than the set removal rate, the arithmetic control unit 41 sends an open signal to the roll clearance control motor 46 for a predetermined time. Is output to widen the gap between the removal rolls 3 and 3. The detected removal rate is compared with the set removal rate, and when the set removal rate and the detected removal rate are equal, the arithmetic control unit 41.
Therefore, no adjustment command signal is output to the roll clearance control motor 46, and the clearance between the derolling rolls 3 and 3 is maintained as it is.

When adjusting the clearance between the derolling rolls 3 and 3 based on the depletion rate, the control output time is set to be long or short depending on the difference between the detected depletion rate and the reference depletion rate. You may. Further, this control starts after the light amount adjustment of the removal rate detector 34 and ends when the stop switch S2 is turned on. Further, when the paddy supply control valve 43 is completely closed, this control is interrupted, the derolling rolls 3, 3 are spread to an unloaded state, and the paddy hopper 2 is depleted of paddy for a predetermined time. If it continues (for example, 20 seconds), the drive of the removal rolls 3 and 3 is stopped, and if the removal rate detector 34 is abnormal, this removal rate control is stopped. , The current removal control of the removal rolls 3 and 3 is performed. At this time, the abnormality of the removal rate detector 34 is displayed on the removal rate abnormality LED LJ and the buzzer 5 is activated.
When the operator recognizes the abnormality and turns on the buzzer stop switch S3, the buzzer 57 and the removal rate abnormality LEDL are notified.
The abnormality notification such as J is stopped, and the removal control output from the arithmetic and control unit 41 based on this control is stopped.

During this control, if the derolling roll developing lever 54 is operated and the gap between the derolling rolls 3 and 3 is suddenly widened, the arithmetic control unit 41 outputs The adjustment command signal is stopped, and the paddy supply control valve 43 is completely closed by the closing command signal from the arithmetic and control unit 41, the expansion of the removing rolls 3 and 3 is released, and the removing roll is released. Deployment lever 54
When is restored, this control is restarted, and the paddy supply control valve 43 is opened and the work is restarted by setting the initial opening of the paddy supply control valve 43.

Further, in the case where the clearance between the removing rolls 3 and 3 is adjusted based on the removing rate, when the load current value reaches a predetermined overload setting reference value, the paddy supply of the removing section 1 is performed. The opening of the control valve 43 is narrowed to reduce the supply amount. When the hulling work is performed at a predetermined removal rate by adjusting the clearance between the removal rolls 3 and 3 according to the removal rate, the set reference value of the removal rate and the measured removal rate are omitted. The gap between the removing rolls 3 and 3 is adjusted so that they are equal to each other. However, for example, when the set removal rate is high, if the gap between the removal rolls 3 and 3 is narrowed so that the measured removal rate approaches the reference value, the load current value increases and overload occurs. May be.
Even in such a case, when the predetermined overload setting reference value is reached, it is possible to reduce the supply amount by narrowing the opening of the paddy supply control valve 43, prevent overload, and prevent the breaker from falling. It is a thing. Note that FIG. 30 shows this flow chart.
It shows the

Further, when the predetermined overload setting reference value is reached in this way, when the supply amount is reduced by narrowing the opening degree of the paddy supply adjusting valve 43, the adjustment lower limit of the paddy supply adjusting valve 43 is set in advance. And the adverse effect of the supply amount becoming too small, that is, the amount of grains to be sorted in the rotary sorting cylinder 11 is reduced, and the paddy rice is scraped up on the finishing rice gutter 16 at the discharge side portion, and the sorting accuracy is reduced. Can be prevented.

Further, in the case where the clearance between the removal rolls 3 and 3 is adjusted based on the removal rate, when the load current reaches a predetermined overload setting reference value, a command signal from the arithmetic control section 41. Then, the setting removal rate is set to be lower by a predetermined percentage. When the hulling work is performed at a predetermined removal rate by adjusting the clearance between the removal rolls 3 and 3 according to the removal rate, the set reference value of the removal rate and the measured removal rate are omitted. The gap between the removing rolls 3 and 3 is adjusted so that they are equal to each other. However, for example, when the set removal rate is high, the gap between the removal rolls 3 is narrowed so that the measured removal rate approaches the reference value. As a result, the load current value may increase, resulting in overload. Even in such a case, when the predetermined overload setting reference value is reached, the setting removal rate is reduced by a predetermined percentage,
It is possible to prevent overload and prevent breakers from falling off. Incidentally, FIG. 31 shows this flow chart. Instead of lowering the predetermined% set decapsulation rate, the LCD display device 30 displays "Reduce the predetermined% set decapsulation rate" to reduce the set decapsulation rate by an operator. Good.

Further, in the case where the clearance between the removing rolls 3 and 3 is adjusted based on the removing rate, the low removing rate is not more than a predetermined% (for example, 60%) and the load current value is not more than a predetermined value. When the load setting reference value (for example, the load current value at which the skin contact phenomenon at the removing rolls 3 and 3 does not occur) is less than or equal to the load setting reference value, the roll clearance control motor 46 removes the load. It is also possible to output a rule closing signal to narrow the gap between the removing rolls 3 and 3 to the load setting reference value and increase the removing rate.

When the clearance between the derolling rolls 3 is adjusted by the depletion rate and the hulling operation is performed at a predetermined depletion rate, the set depletion rate reference value and the measured depletion rate are used. The gap between the removal rolls 3 and 3 is adjusted so that and are substantially equal. However, when the removal rate is as low as 60%, the number of grains that cannot be scraped in the rotary sorting cylinder 11 increases, and the unpolished rice tends to be mixed with the brown rice of the finished rice gutter 16.

However, as described above, when the predetermined removal rate is low and the measured load current value is lower than the predetermined load reference current value, the removal roll 3 up to the load reference current value is used. By narrowing the gap between No. 3 and No. 3, the removal rate can be increased, and the skin rub phenomenon of brown rice can be prevented while the sorting state in the rotary sorting cylinder 11 is relatively good. . Incidentally, FIG. 32 shows this flow chart. [Reduced Rice Control] When the detection information of the brown rice amount detector 25 and the detection information of the reduced grain amount detector 26 are detected, the ratio of “reduced grain amount / brown rice amount” is a predetermined ratio (for example, 10). % ~ 3
(3%), the opening degree of the paddy supply control valve 43 of the removing unit 1 is adjusted. Detection information of brown rice amount detector 25 and reduced grain amount detector 26
When the detection amount of the reduced grain amount detector 26 detects the grain amount ratio within the set reference with respect to the detection amount of the brown rice amount detector 25, the rotation is performed. Sorting cylinder 11
Is a proper selection state, the control drive signal from the arithmetic and control unit 41 to the paddy supply control valve control motor 44 is not output, and the paddy supply control valve 43 of the stripping unit 1 remains open. Maintain and continue sorting work. When the reduction grain amount detector 26 detects the grain amount of the ratio of the amount of brown rice amount detector 25 larger than the set reference amount, the calculation control unit 41 supplies the amount to the drive circuit. A decrease command signal is output, and the paddy supply control valve control motor 44
Thereby, the paddy supply control valve 43 is adjusted to the predetermined amount decreasing side. Detection information of reduced grain amount detector 26 and brown rice amount detector 25
When the reduction grain amount is compared with the detection information and the reduction grain amount is smaller than the set reference amount, the arithmetic control unit 41 outputs a supply amount increase command signal to the drive circuit.
The paddy supply control valve 43 is controlled by the paddy supply control valve control motor 44.
Is adjusted to the increasing side.

When the detection information of the reduced grain amount detector 26 and the brown rice amount detector 25 are abnormal, the reduced rice control is stopped, and the control output from the arithmetic control unit 41 to the paddy supply control valve 43 is stopped. To be done. In addition, when the paddy supply control valve 43 is manually opened / closed during the reduced rice control, the opening degree before the manual adjustment is returned at a predetermined adjustment speed. In this way, when detecting the amount of grains by the reduced grain amount detector 26 and the brown rice amount detector 25, the number of detected grains of the detector is calculated and calculated within the predetermined time.
When the number of grains is equal to or less than a predetermined number, which is the setting reference in 1, it is determined that the number of grains to be sorted in the rotary sorting cylinder 11 is reduced,
This is a configuration in which the output of the adjustment command signal of the paddy supply adjusting valve 43 of the removing unit 1 is stopped.

It is difficult to maintain a proper sorting state by continuing the control of the paddy supply regulating valve 43 even when the amount fed to the rotary sorting cylinder 11 becomes less than a predetermined amount. Therefore, when the detected amount of the detector becomes equal to or less than the predetermined amount within the predetermined time, the output of the adjustment command signal of the paddy supply adjusting valve 43 is stopped. Therefore, malfunction of the paddy supply control valve 43 due to continuing the control is prevented in advance, and the grain clogging phenomenon of the rotary selection cylinder 11 is prevented.
Alternatively, it is possible to prevent the skin rubbing phenomenon and the like due to the double rubbing in the removing section 1. The reduced grain amount detector 2
6 and the amount detected by the brown rice amount detector 25 become less than or equal to a predetermined amount, other control such as removal rate control, removal roll gap control, and rotation speed adjustment control of the rotation selection cylinder 11 is also performed. It may be configured to stop.

Further, in detecting the grain amount by the reduced grain amount detector 26 and the brown rice amount detector 25, as shown in FIG. 33, the detection results for every predetermined time are averaged by adding a predetermined number of times. It is possible to prevent variations in measurement results and prevent hunting phenomenon in adjustment of the paddy supply control valve 43.
In addition, in detecting the amount of grains with the reduced grain amount detector 26 and the brown rice amount detector 25, the number of rotations of the rotary selection cylinder 11, the number of rotations of the paddy grain mill 22, the number of rotations of the finished rice grain mill 20. When the time that is an integral multiple of is the sampling time, hunting of the detection result can be prevented and the detection result can be made accurate.

Brown rice amount detector 25, reduced grain amount detector 26
It is also possible to determine the abnormality of the detector based on the input state of the detection information to the arithmetic control unit 41 of the layer thickness detector 39.
That is, despite the input of detection information from the brown rice amount detector 25 and the reduced grain amount detector 26, the layer thickness detector 3
When the detection information is not input from 9, the layer thickness detector 3
It is judged that the abnormality is No. 9 and is displayed on the LCD display device 30 to prompt the operator to inspect the layer thickness detector 39. In addition, similarly, it is possible to determine the abnormality of the brown rice amount detector 25 from the detection results of the reduced grain amount detector 26 and the layer thickness detector 39, and the detection results of the brown rice amount detector 25 and the layer thickness detector 39. From this, it is possible to determine an abnormality of the reduced grain amount detector 26. [Operation display of finishing valve operation lever of finishing rice gutter] This control is performed in connection with the operation of the efficiency lowering switch S8 or the efficiency raising switch S9, and the operating position of the finishing valve adjusting lever 48 is changed. The LCD display device 30 displays characters. When the cylinder rotation speed detector 35 detects the upper limit rotation speed of the rotation selection cylinder 11 while the efficiency increasing switch S9 is ON, the LCD display device 30 displays "The finishing valve adjusting lever 48 is lowered by one step or a predetermined step. Is displayed, the operator lowers the finishing rice control valve 16a of the finishing rice gutter 16 by one step or a predetermined step to adjust the receiving area of the finishing rice gutter 16 to increase the work efficiency. When the cylinder rotation speed detector 35 detects the lower limit rotation speed of the rotation selection cylinder 11 while the efficiency lowering switch S8 is ON, the LCD display device 30 displays "The finishing valve adjusting lever 48 is raised by one step or a predetermined step. ", The operator raises the finishing rice control valve 16a of the finishing rice gutter 16 by one step or a predetermined step to narrow the receiving area of the finishing rice gutter 16,
Work while increasing the sorting accuracy.

In this embodiment, an efficiency increasing switch S9 and an efficiency decreasing switch S8 for operating the rotation speed control motor 45 are provided.
9. When the efficiency lowering switch S8 is turned on, the rotation speed control motor 45 is adjusted up or down by one revolution (rpm). Further, the efficiency lowering switch S8 or the efficiency raising switch S9 is operated to increase the efficiency lowering switch S again while the rotational speed of the rotary selection cylinder 11 is being adjusted up or down.
8 or when the efficiency increasing switch S9 is operated, it is determined that the switch operation thereafter is an erroneous operation, and the arithmetic control unit 41 outputs a down adjustment signal or an up adjustment signal to the rotation speed control motor 45. If the efficiency increasing switch S9 or the efficiency decreasing switch S9 opposite thereto is operated, the rotation speed increasing command signal or the rotation speed decreasing command signal is interrupted, and the rotation speed decreasing command signal or the rotation speed is changed later. In this configuration, the number-up command signal is output with priority.

In place of this embodiment, when the above-mentioned conditions are satisfied, the finishing rice control valve 16a is automatically controlled by a command signal from the arithmetic control unit 41 via a finishing valve control motor (not shown). The configuration may be adjusted. Next, FIGS. 34 to 36 will be described. Reference numeral 48 is a finishing valve adjusting lever for adjusting the finishing rice control valve 16a of the finishing rice gutter 16, and the receiving area becomes narrower as it is moved upward, the sorting accuracy becomes higher, and the receiving area becomes wider as it is moved downward. Become,
This is a configuration with high selection efficiency. A low rotation switch 52 is provided at the upper end of the guide groove 51 in which the finishing valve adjusting lever 48 moves, and a high rotation switch 53 is provided at the lower end thereof. The rotation low switch 52 and the rotation high switch 53 are connected to the arithmetic control unit 41 via an input interface (not shown), and the arithmetic control unit 41
Is connected to a low rotation speed drive circuit, a high rotation speed drive circuit, and a rotation speed control motor 45 via an output interface (not shown).

During the hulling / sorting operation, the operator operates the finishing valve adjusting lever 48 to move to the upper end of the guide groove 51, and when the rotation low switch 52 is turned on, the arithmetic control unit 41.
Sends a command signal for lowering the predetermined rotation speed (for example, 1 rpm) to the low rotation speed drive circuit, the rotation speed of the rotation selection cylinder 11 decreases by the predetermined rotation speed, and the scraping height of the grain decreases,
The fall of the paddy rice on the finishing rice gutter 16 is reduced, and the operator operates the finishing valve adjusting lever 48 to guide the guide groove 51.
When the rotation height switch 53 is turned on,
A command signal for increasing the predetermined rotation speed (for example, 1 rpm) is sent from the arithmetic and control unit 41 to the high rotation speed drive circuit, the rotation speed of the rotation selection cylinder 11 is increased by the predetermined rotation speed, and the height at which the grain is picked up is increased. As a result, the amount of scratches on the finished rice gutter 16 increases and the sorting efficiency can be increased.

Even if the finishing valve adjusting lever 48 is operated to the uppermost position, if the unpolished rice still enters the finishing rice gutter 16, the finishing valve adjusting lever 48 is operated again and the rotation low switch 52 is pushed. With this, the number of revolutions can be reduced by one more revolution.

[0084]

As described above, according to the present invention, when the load current value of the motor becomes a light load during the hulling and sorting work, the paddy supply adjusting means is adjusted to the decreasing side in association with this, Since the load is reduced and the normal work state is restored, it is possible to perform the hull selection work by the automatic operation while reducing the interruption of the work.

[Brief description of drawings]

[Fig. 1] Cut side view

[Figure 2] Rear view of cutting

FIG. 3 is a perspective view.

FIG. 4 is a front view of the panel.

FIG. 5 is a block circuit diagram.

[Figure 6] Time chart

[Figure 7] Time chart

[Figure 8] Time chart

FIG. 9 is a block circuit diagram.

[Figure 10] Chart

FIG. 11 is a block circuit diagram.

[Figure 12] Chart

FIG. 13 is a cutaway side view of a main part.

FIG. 14 is a cutting front view and a flow chart.

FIG. 15: Flow chart

FIG. 16 is a flowchart

FIG. 17 is a drawing showing a detection signal of a detector.

FIG. 18 is a drawing showing a detection signal of a detector.

FIG. 19: Flow chart

FIG. 20: Flow chart

FIG. 21: Time chart

FIG. 22: Flow chart

FIG. 23 is a perspective view.

FIG. 24 is a cut side view.

FIG. 25: Rear view of cutting

FIG. 26 is a block circuit diagram.

FIG. 27: Chart

FIG. 28 is a graph showing signal frequency / voltage distribution.

FIG. 29: Time chart

FIG. 30: Flow chart

FIG. 31: Flow chart

FIG. 32: Chart

FIG. 33: Time chart

FIG. 34 is a perspective view

FIG. 35 is a side view.

FIG. 36: Flow chart

[Explanation of symbols]

 1 Depulling part 2 Paddy hopper 3 Depuffing roll 4 Sliding rice wind selection path 5 Suction fan 6 Dust collecting cylinder 7 Sliding rice receiving gutter 8 Mixed rice fried machine 9 Mixed rice hopper 10 Sorting case 11 Rotating sorting cylinder 12 Drive Roller 13 Supply helix 14 Supply gutter 15 Finished rice helix 16 Finished rice gutter 16a Finished rice control valve 17 Finished rice flow lower cylinder 18 Finished rice flow lower plate 19 Finished rice gutter 20 Finished rice grain grabbing machine 20a Outlet section 21 Lough gutter 22 Paddy grain machine 23 Reduced paddy hopper 24 Reduced shelf 25 Brown rice amount detector 26 Reduced grain amount detector 27 Operation panel 28 Efficiency setting dial 29 Depletion rate setting dial 30 LCD display device 31 Paddy supply amount detector 32 Supply side grain Grain scattering detector 33 Intermediate grain scattering detector 34 Depletion rate detector 35 Cylindrical rotation speed detector 36 Paddy hopper grain detector 37 Depletion roll development detector 38 Finishing valve opening detection Output device 39 Layer thickness detector 40 Load current detector 41 Arithmetic control unit 42 Main motor 43 Paddy feed control valve 44 Paddy feed control valve control motor 45 Rotation speed control motor 46 Roll gap control motor 47 Feed roll 48 Finishing valve control lever 49 Layer thickness detection shaft 50 Layer thickness detection plate 51 Guide groove 52 Rotation low switch 53 Rotation high switch 54 Unrolling roll deployment lever 55 Interlocking member 56 Paddy feed adjusting lever 57 Buzzer 58 Discharge side grain amount detector 59 Drive roller shaft 60 Pulley 60a Continuously variable pulley 61 Transmission belt 62 Tension arm 63 Tension pulley S1 Start switch S2 Stop switch S3 Buzzer stop switch S4 Automatic / manual switch S5 Mochi / whip switch S6 Rice paddle switch S7 Damaged rice switch S8 Efficiency reduction switch S9 Efficiency increase Switch LA Automatic / manual LED LB Mochi / Uruchi LED LC Paddy mixed LED LD Damaged rice LED LE LED efficiency reduction LED LF LED efficiency increase LED LG Paddy hopper LED LH Paddy supply control valve error LED LI de-roll roll LED LED LJ removal rate error LED LK Rotating sorting tube error LED LL Finishing rice clogging error LED LM Reduction grain error LED LN Finishing valve lever error LED LO Overload error LED LP Inclination adjustment LED LQ Rice paddy error LED

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michihiro Yamamoto No. 1 Hachikura, Tobe Town, Iyo-gun, Ehime Prefecture, Engineering Department, Iseki Agricultural Machinery Co., Ltd. Department

Claims (1)

[Claims] 1. A hulling / sorting machine having an automatic gap adjusting means for adjusting a gap between a pair of depulling rolls 3 and 3 and a paddy feed adjusting means for adjusting a paddy feed amount to the depulling rolls 3, 3. In regard to a motor for driving a hulling / sorting machine or a removing roll, a load current sensor for detecting a load current value of the motor, and a light overload detection of the load current sensor. A control device for a grain sorting machine, comprising: a paddy feed amount reduction adjusting unit for adjusting the paddy feed adjusting unit to a decreasing side.