JPH09276719A - Controller for husking separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lessen the skin rubbing of unpolished rice and to improve husking performance by correcting the standard value of a roll gap to a slightly narrow value as compared with the case of an oscillating separator when a mixed rice separating section is decided to be a rotary separating cylinder type, thereby enabling husking at a slightly high hulling rate. SOLUTION: The husking section 1 of the husking separator has a husking chamber 8 internally equipped with an unhulled rice hopper 6, husking rolls 7, etc. When the initial gap set control of the husking rolls 7 is started, the roll gap is first adjusted to open. The gap is decided to be open when a load current detecting sensor detects a no-load current value. The gap is then adjusted to close. Decision as to whether a rotary separating cylinder type or shaking separator type in the mixed rice separating section is executed in accordance with the output of a type discriminating switch when the load current value to exceed 125% increased load current value with respect to the no-load current value is detected by the sensor. When the shaking separator type is separated, the roll gas is adjusted to be slightly wide. On the other hand, in the case of the rotary sepn. cylinder type, the roll gap is set to be slightly narrow.

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 hulling sorter.

[0002]

2. Description of the Related Art A hulling section, a mixed rice sorting section capable of selecting a rocking sorting apparatus type or a rotary sorting cylinder type mixed rice sorting apparatus, and a motor for driving a hulling roll of the hulling section. , Hulling roll
A roll gap adjusting means for adjusting the roll gap of the roll, and a roll gap automatic control for automatically adjusting the roll gap while detecting a load current value of the motor and comparing it with a control reference value. A hulling / sorting machine comprising a means is known.

[0003]

In the prior art, when the mixed rice sorting unit of the swing sorting device type is mounted,
Alternatively, even when the rotary selection cylinder type is installed, the same control reference value is used as the control reference value for controlling the roll clearance of the roll clearance automatic control means, and the difference is caused by the difference in the model. I didn't.

In the rotary sorting cylinder type mixed rice sorting apparatus, all of the sorted grains which have been fed from the starting end side of the rotary sorting barrel and have reached the end portion while being sorted are returned to the hull portion. The grain is returned to the hull portion from the end of the rotary sorting cylinder to prevent the brown rice from being reduced, because the brown rice will rub against the skin. Proportion was required.

On the other hand, in the rocking / sorting device type mixed rice sorting device, a paddy partition plate is provided on the swinging side of the swinging / sorting plate of the swinging / sorting device, and the rice hull portion is provided. Since the amount of grains to be reduced can be adjusted and the amount of brown rice can be reduced, a particularly high depulling rate was not required. In view of this, the present invention provides a mixed rice sorter of the rocking sorter type and a mixed rice sorter of the rotary sorter type having a control unit of an automatic roll gap control unit which is commonly used for both mixed rice sorters. It is intended to improve the hulling performance by making it possible to set the control reference value of the roll gap according to the above.

[0006]

The present invention has taken the following technical means in order to solve the problems of the prior art. That is, the present invention provides a pair of hulling rolls 7,
A hulling section 1 composed of 7; a mixed rice sorting section capable of selecting a swing sorting device type or a rotary sorting cylinder type; a motor for driving the hulling rolls 7 and 7; Roll 7,7
And a roll gap adjusting means for opening and closing the gap of the
Automatic load control means for automatically adjusting the roll gap while detecting the load current value of the machine and comparing it with the control reference value, and whether the mixed rice sorter is an oscillating sorter type or a rotary sorter cylinder type. When the mixed rice sorting unit type determining unit determines that the mixed rice sorting unit type determining unit determines that the mixed rice sorting unit type determining unit determines that the mixed rice sorting unit type determining unit is the rotary sorting cylinder type, it is compared with the swing sorting device type and the roll gap automatic control unit rolls. The control device for a hull sorting machine comprises a roll gap control reference value correcting means for correcting the roll gap control reference value to be narrower.

[0007]

When the roll clearance of the hulling rolls 7 and 7 is automatically controlled, the load current value of the hulling rolls 7 and 7 driving motor is detected and compared with the control reference value. When the detected load current value is higher (or lower) than the control reference value, the roll gap is adjusted to open (or closed) so that the detected load current value returns to within the control reference value range. Then, it is hulled while maintaining a predetermined removal rate.

At the time of controlling the roll clearance, it is determined whether the mixed rice sorting section of the hull sorting machine is a rotary sorting cylinder type or an oscillating sorting device type, and rotation is performed. If it is determined to be the sorting cylinder type, the control reference value of the roll gap is corrected to be narrower than that of the swing sorting device type, and hulling is performed with a high removal rate.

[0009]

As described above, according to the present invention, when the mixed rice sorting unit is determined to be the rotary sorting cylinder type, the roll clearance control criterion is compared with the swing sorting device type. Since the value is corrected narrowly and hulling is performed with a high removal rate, less brown rice is returned to the hulling section 1 from the rotating sorting cylinder type mixed rice sorting section, and the brown rice is rubbed against the skin. It can be reduced and the hulling performance can be improved.

[0010]

Embodiments of the present invention shown in the drawings will be described below. First, the overall configuration of a hulling sorter will be described with reference to FIG. The rice hulling sorter is a rice hulling unit that performs hulling 1, a rice hulling rice selection unit that wind-selects rice hulled from the rice hulling unit 1, and a mixing after wind selection in a rice hulling rice selection unit 2. It comprises a rocking sorting device 3 for separating and sorting rice, a mixed rice frying machine 4, a brown rice frying machine 5, and the like.

The rice hulling unit 1 comprises a rice hopper 6, a hulling roll 7,
The hulling room 8 is provided with an interior such as 7. The sliding rice style selection unit 2 includes a sliding rice style selection box 9, a sliding rice style selection path 10 that is obliquely arranged from the lower rear to the upper front in the sliding rice style selection box 9, pity reception It comprises a gutter 11, a sliding rice receiving gutter 12, a suction fan 13, a dust tube 14, and the like. Next, the swing selecting device 3 will be described. Multi-stage swing sorting plate 15,
15,... Have irregularities for sorting formed on the plate surface,
One side in the vertical direction is a high supply side 15a, the other side is a low discharge side 15b, and one side in the horizontal direction is a high swing side 15a.
c, the other side is a lower swinging side 15d, and the swing sorting plate 1
5 is tilted in both the vertical and horizontal directions, and the swing selection plate 15 is reciprocally swinged up and down in the horizontal direction by a swing arm, a swing device, or the like.

A distribution supply gutter 16 and a distribution case 17 are provided at a supply port formed on the supply side 15a in the vertical direction of the oscillating sorter plate 15 and closer to the upper side 15c in the horizontal direction.
After that, mixed rice is supplied. Swing sorting plate 1
In the mixed rice supplied in No. 5, small brown rice with a heavy specific gravity is distributed in a non-uniform flow on the upper side 15c in the horizontal direction due to the relationship between the size of the grain shape, the magnitude of the specific gravity, and the magnitude of the friction coefficient. The paddy with a large specific gravity is unevenly distributed on the lower side 15d in the horizontal direction, and unmixed mixed rice of unmixed rice and brown rice is unevenly distributed in the middle part thereof. Brown rice partition plate 18 provided corresponding to the discharge side 15b of the plate 15
And the paddy partition plate 19.

The brown rice separated by the brown rice partitioning plate 18 is taken out of the machine through a brown rice extraction gutter 20, a brown rice flow path 21, and a brown rice milling machine 5, and the mixed rice is mixed rice extraction gutter 22, a mixed rice Via the flow path 23, the sliding rice receiving gutter 12, the mixed rice frying machine 4, the mixed rice hopper 24, the distribution supply gutter 16, and the distribution case 17, it is again supplied to the rocking sorter 3 and re-sorted. The paddy is lifted and returned to the hulling unit 1 through the hulling discharge gutter 25, the hulling channel 26, and the hulling machine 27, and the hulling is performed again.

At the lower end of the brown rice partition plate 18, the upper ends of the rotation switching plates 18a and 18b are rotatably supported in the left and right direction. As shown in FIG.
Is moved to the swinging side, the lower end of the rotation switching plate 18a is rotated in a state of contact with the downflow opening of the brown rice extraction gutter 20, and the grains partitioned on the swinging upper side of the brown rice partition plate 18 are brown rice. Extraction gutter 2
0, the brown rice flow path 21, the brown rice lifting machine 5 and then taken out of the machine, and when the brown rice partition plate 18 is moved upward from the state shown in the drawing, the rotation switching plate 18b is a stopper (not shown). By the rotation switching plate 18b, the grain which is rotated in the same direction and rotated in the same direction and is partitioned on the swaying side of the brown rice partition plate 18 is guided to the mixed rice flow path 23 side and taken out. (Note that when the brown rice partition plate 18 moves to the uppermost rocking side, it moves further to the upper rocking side than the uppermost rocking upper end of the rocking sorting plate 15, and in that state, the rotation switching plate 18b of FIG. Rotate like a phantom line to guide the grain separated on the rocking side of the brown rice partition plate 18 to the mixed rice flow path 23 side, and the grain distributed on the rocking side of the rocking sorter plate 15 inside the machine. In addition, the brown rice partition plate 18 is replaced with the rotation switching plates 18a and 18b instead of the brown rice partition plate 18. A configuration may be adopted in which a brown rice switching valve 37 for switching grains to the outside extraction state or the in-machine circulation state is provided at the downflow port of the rice extraction trough 20, and the grains are switched by rotating the brown rice switching valve control motor 38 forward or backward.

Further, the mixed rice flow path 23 is provided with a mixed rice switching valve 39 which is switched by forward / reverse rotation of the mixed rice switching valve control motor 40, and the extracted grain is on the circulation side in the machine or The configuration is such that it can be switched to the return side to the hulling section 1. Further, a reduced grain sensor 65 is provided on the rocking side 15d of the paddy partition plate 19 to detect the presence or absence of grains that are partitioned by the paddy partition plate 19.

Although illustration is omitted, the mixed rice hopper 2
4 and the paddy supply control valve of the paddy hull part 1 are interlockingly connected via an interlocking member such as a link, and when the mixed rice hopper 24 moves downward or upward due to an increase or decrease in the grain amount, the paddy supply control valve is related. The configuration is adjusted to decrease or increase side.
The brown rice partition plate 18 has a structure in which the brown rice partition plate movement adjusting means 28 can reciprocate and adjust from the rocking upper side 15c to the rocking side 15d. When the brown rice partition plate adjusting motor 29 is rotated in the normal direction or the reverse direction, the rocking upward side 15c or The movement is adjusted to the rocking side 15d. Then, when the brown rice partition plate 18 moves to the most swinging upper side, it is detected by the partition plate origin switch (swinging upper side) 33, and
The brown rice partition plate 18 is detected by the partition plate origin switch (swing side) 34 that moves to the lowermost swing side 15d, and the movement of the brown rice partition plate 18 is stopped accordingly.

Above the discharge side 15b of the swing sorting plate 15,
A rice / brown rice discrimination sensor 30 is provided. The paddy / brown rice discrimination sensor 30 is movably supported in a lateral direction by a sensor moving means 31 constituted by a screw bar,
When the sensor adjusting motor 32 is rotated forward or backward, the sensor adjusting motor 32 is reciprocated in the lateral direction. When the paddy / brown rice discrimination sensor 30 moves to the uppermost swinging upper side 15c, it is detected by the sensor origin switch (swinging upper side) 35, and when the paddy / brown rice discrimination sensor 30 moves to the lowermost swinging side 15d, the sensor origin switch (swinging). (Lower side) 36, and each is stopped.

The rice / brown rice discrimination sensor 30 is constructed as follows in this embodiment. The light emitting unit irradiates the grain with an electromagnetic wave having a moisture absorption wavelength and a reference wavelength not absorbed by moisture, and receives an amount of reflected light (or an amount of transmitted light) from the grain by an optical filter unit, and the moisture absorption wavelength light passes through the optical filter unit. The light is input to the light receiving unit (moisture absorption wavelength light) via the
The reference wavelength light reflected by the optical filter unit is sent to the control unit 41 with a built-in U, and is sent to the light receiving unit (reference wavelength light), converted into a voltage value, and sent to the control unit 41. Thus, the configuration is such that the ratio between the two detected voltage values is calculated by the control unit 41, and is compared with a predetermined determination threshold value to determine the type of rice or brown rice. Note that the detection wavelength range is not limited to the above wavelength range.

Next, an input configuration of sensors and switches to a control microcomputer (hereinafter referred to as a control unit) 41 and a connection configuration to an actuator will be described.
The controller 41 includes a digital sensor input unit and a digital input circuit via a partition plate origin switch (upward swing) 33,
Partition plate origin switch (swinging side) 34, sensor origin switch (swinging side) 35, sensor origin switch (swinging side) 3
6, a roll deployment sensor 42 (which detects a state in which the gap between the hulling rolls 7, 7 is opened) is connected. A grain sensor 43 for detecting the presence or absence of grains in the paddy hopper 6 is connected via a comparison circuit.
6, the display changeover switch 47 and the reduced grain sensor 65,
Each is connected via a digital input circuit.

A load current detection sensor 48 is connected to the control unit 41 via a comparison circuit, and the movement of the rice partitioning plate 19 is moved via an analog input circuit and an A / D conversion circuit. The rice paddle potentiometer 49 for detecting the position, the brown rice partition plate potentiometer 50 for detecting the moving position of the brown rice partition plate 18, the rice / brown rice discrimination sensor 30, and the horizontal inclination angle of the swing sorting plate 15 are detected. The position of the selection plate inclination potentiometer 51, the opening of the hulling supply control valve of the hulling unit 1, the hulling supply control valve potentiometer 52, and the position of the adjustment lever for adjusting the hulling supply adjustment valve are detected. Paddy supply control lever
A potentiometer 53 and a paddy / brown rice discrimination sensor potentiometer 54 are connected to each other.

Further, the main motor 55 for driving the hulling / sorting machine, the brown rice partition plate adjusting motor 29, the sensor adjusting motor 32, and the brown rice switching valve adjusting motor are output from the control section 41 via the output circuit. -Motor 38, mixed rice switching valve adjusting motor 40, and sorting plate tilt adjusting motor 5 for adjusting the lateral tilt angle of the rocking sorting plate 15.
6. A paddy supply control valve control motor 57 and a roll gap control motor 58 for controlling the opening of the paddy supply control valve are connected to each other.

The control section 41 is connected to a monitor display section 59 via a display output circuit, and is connected to a swing rotation adjusting motor 60 via a rotation command output circuit. In this configuration, the rotation information of the swing rotation adjustment motor 60 is input to the control unit 41 via a rotation pulse input circuit. A serial data receiving circuit 61 and a serial data transmitting circuit 62 are connected to the control unit 41, and a non-volatile memory 63 is connected to the memory unit of the control unit 41.

FIG. 3 shows an operation panel 64 of the control unit 41. The control unit 41 includes a serial communication interface,
The card checker 66 is connected to the card checker 66 via a communication line, and the card checker 66 includes a display unit and a plurality of switches. Then, when the IC card 67 for system setting is inserted, the card checker 66 is activated.

Next, the control contents of the control unit 41 will be described. When the paddy / brown rice boundary position detection control of the paddy / brown rice discrimination sensor 30 is started, it is determined whether or not the paddy voltage value of a predetermined number of grains is detected within a predetermined time from the detected voltage value of the paddy / brown rice discrimination sensor 30. It is measured and the detected data is compared with a control reference value. Then, when the number of grains of the paddy detection voltage value is large (or small), the paddy / brown rice discrimination sensor 30 is swung upward 15
The detection work is continued while moving to c (or the swinging side 15d) for a predetermined distance, and the position where the number of grains of the paddy detection voltage value falls within the control reference value range is determined as the border position of the paddy / brown rice. Then, the partition position of the brown rice partition plate 4 is calculated based on the boundary detection position of the paddy / brown rice, a movement command of the brown rice partition plate 18 is issued, and the brown rice partition plate 18 moves to the partition position.

Next, work start control and work end control of the rocking / sorting device 3 will be described. As shown in the flow chart of FIG. 7, when the work start control starts, the reduced grain sensor 6
5 starts detection, and the presence or absence of grains on the lowermost swing side 15d of the swing selection plate 15 is detected. When the reduced grain sensor 65 detects a certain number of grains at a certain time and determines that there is a grain, the flag is turned ON when the flag is OFF in the initial work,
The initial position of the brown rice partition plate 18 on the swaying side for a predetermined distance from the uppermost position 15c (the partitioning position where grains are not mixed with brown rice in a normal sorting state in which grains are distributed over the entire width of the plate surface) Position), the rotation switching plates 18a and 18b of the brown rice partition plate 18 are switched to the outboard side, and the grains distributed on the upside of the rocking sorting plate 15 are taken out of the machine. Be done. Next, similarly to the above control, the paddy / brown rice boundary position of the paddy / brown rice discrimination sensor 30 is detected, and the movement control of the brown rice partition plate 18 to the partition position is performed accordingly.

As shown in the flow chart of FIG. 7, the swing selection plate 1
When the reduced grain sensor 65 detects that there is no grain during the work of No. 5, it is determined that the work is completed, and the paddy / brown rice discrimination sensor 30
The boundary detection work is stopped, and the partition control of the brown rice partition plate 18 accompanying the boundary detection of the paddy / brown rice discrimination sensor 30 is stopped.
Next, the brown rice partition plate 18 is moved to the uppermost swing side 15c, and the swing selection plate 1 is moved by the rotation switching plate 18b of the brown rice partition plate 18.
The grain on the upper side of No. 5 is switched from the out-of-machine state to the in-machine circulation state, and the mixed rice switching valve 39 is switched to the reducing state to the hulling section 1.

Then, the whole grains discharged from the rocking / sorting plate 15 are returned to the hulling unit 1 for a predetermined time and hulled. Then, hulling is performed several times over a predetermined time, and when all the grains are hulled, the brown rice partition plate 18 is moved to the swaying side, the grains distributed on the swaying side are taken out of the machine, and the flag is set. Turn it off. Next, the correction control of the initial partition position in the work start control will be described with reference to FIGS. 5 and 6.

When the IC card 67 is inserted into the card checker 66 shown in FIG. 5, the system setting for correcting the control reference value is started. Next, when the system selection switch of the card checker 66 is pressed to select correction of the initial partition position of the brown rice partition plate 18 from a plurality of reference value correction items, and then the start switch is pressed, this control is started. Then, as shown in the flow chart of FIG.
The distance L1 of the initial partition position stored in the ROM 41a
(For example, 15 cm from the uppermost swing position) is read and displayed on the display unit of the card checker 66, and then,
A control command is issued from the control unit 41 to the initial partition position of the brown rice partition plate 18, the partition plate adjusting motor 29 is driven for a predetermined time, the brown rice partition plate 18 moves to the initial partition position, and then the brown rice partition plate. Plate Potentiometer 50 to Brown Rice Partition Plate 1
The distance L2 of the initial partition position of 8 is detected and displayed on the display unit. Next, the reference value L1 of the initial partition position and the detected initial partition position L2 are compared, and when L1 and L2 are equal, the reference value correction control ends.

If L1 is longer than L2, pressing the switch on the reference value of the card checker 66 once drives the brown rice partition plate adjusting motor 29 downward by one step,
Move the brown rice partition plate 18 down one step (for example, 5
mm) and turn on the reference price increase switch until L1 and L2 are equal, and when L1 is shorter than L2, similarly perform a correction operation to push the reference value lower switch,
The operation is continued until 1 becomes equal to L2.

However, the distance of the reference initial partition position is increased / decreased according to the number of times of operation of the reference value up / down switch, and the EEP is turned on by turning on the correction end switch.
The corrected reference value is stored in the ROM 41a, the correction operation is completed, and the reference value correction control is completed by removing the IC card 67. Then, when shifting to the partition control of the brown rice partition plate during the hulling / sorting operation, the corrected standard value of the initial partition distance is read from the EEPROM 41a, and the brown rice partition plate 18 moves to the initial partition position. Partition control is performed to move and adjust the brown rice partition plate 18 to a relevant partition position based on the detection of the boundary position of the paddy / brown rice by the paddy / brown rice discrimination sensor 30.

The control reference value may be left unchanged and the number of driving steps of the brown rice partition plate adjusting motor 29 may be modified in accordance with the increase or decrease. Further, in the same manner, the reference value can be corrected by increasing or decreasing the number of the predetermined number of grains in the predetermined time, which is the reference value with the grain of the reduced grain sensor 65. Further, in the same manner, it is possible to increase / decrease the predetermined number of grains of the paddy voltage value in a predetermined time which is a reference value of the boundary detection of the paddy / brown rice discrimination sensor 30, or increase / decrease the range of the predetermined number of grains.

Next, the control of calculating the discriminating voltage value for paddy / brown rice will be described with reference to FIG. When the control of calculating the paddy / brown rice discrimination voltage value is started, the paddy voltage value range upper limit value (M1), the paddy voltage value range lower limit value (M2),
The brown rice voltage value range upper limit value (K1), the brown rice voltage value range lower limit value (K2), and the calculation rate (α) are read.

Next, data is detected while moving the paddy / brown rice discrimination sensor 30 from the upper side to the lower side, and the detected voltage values are the paddy voltage value range (M1 to M2) and the brown rice voltage value range (K1 to M1).
K2), count the number of grains detected by the paddy grain counter (NM), integrate the reading voltage value (MS), and count the number of brown rice grains detected by the brown rice grain counter (N)
K), and integrates the read voltage value (KS).

Next, it is judged whether or not the total of the count numbers NK and NM has reached a certain number of grains (for example, 400 grains), and when it reaches the certain number of grains, then the brown rice count number of grains NK is 0 or not. If it is 0, it is determined that the sensor is abnormal. If the brown rice count grain number NK is not 0, then it is determined whether the paddy count grain number NM is 0. If NM is 0, The paddy / brown rice discrimination sensor 30 is moved downward by one step, and the data is detected again.

When the number Num of grain of paddy NM is not 0, the equation for calculating the voltage value for discriminating paddy / brown rice, that is, [VS = (M
The threshold value is calculated and determined by (S / NM-KS / NK) × α- (KS / NK)], and the boundary detection of the paddy / brown rice discrimination sensor 30 is started. In addition, in the same manner as described above,
The brown rice reference voltage value and the paddy reference voltage value of the brown rice discrimination sensor 30 and the calculation rate α can be corrected. Next, FIG.
~ FIG. 11 will be described.

This is a rotary sorting cylinder type hulled sorting machine, which is a type in which the mixed rice is sorted by a rotary sorting cylinder instead of the swing sorting device 3 shown in FIG. The mixed rice sorting unit will be described below.
Reference numeral 70 denotes a sorting case. In the sorting case 70, a rotary sorting cylinder 71 having a large number of jar holes on its inner peripheral surface is provided.
It is provided so as to rotate around the horizontal axis, and the sorting start end side (right side in FIG. 9) and sorting end side (left side in FIG. 9) thereof.
Are rotatably supported by drive rollers 72, 72, .... A supply gutter 74 on which a supply helix 73 is supported and a brown rice gutter 76 on which a brown rice helix 75 is supported are horizontally installed in the rotary selection cylinder 71.

When arranging the supply gutter 74 and the brown rice gutter 76 in the rotary selection tube 71, the supply gutter 74 is placed on the scraping side of the rotary selection tube 71 and the brown rice gutter as shown in FIG. 76 is disposed on the side that rotates downward from above the rotary selection cylinder 71. In this supply gutter 74, the mixed rice of paddy and a part of brown rice scooped low in the pot hole of the rotary selection cylinder 71 is dropped and sorted, and is further transferred by the supply spiral 73 to the conveyance end side of the supply gutter 74. The supply gutter 74 is also supplied to the selection start end side of the rotary selection cylinder 71, and also has a function of receiving mixed rice.

The brown rice gutter 76 is provided with a brown rice falling tube 7 on the end side of the conveyance.
7. It is connected to a brown rice gutter 79 through the brown rice grain plate 78. The brown rice received by the brown rice gutter 76 is the brown rice flow down cylinder 7.
7. The brown rice is passed through the brown rice grain plate 78 and dropped into the brown rice gutter 79, and is selected by wind, and is further taken out from the brown rice gutter 79 via the brown rice grain fried machine 80. Rotating sorting cylinder 7
Below the sorting end side of No. 1, a paddy gutter 81 is arranged. A paddy grain hopper 82 is connected to the paddy trough 81, and an upper end of the paddy grain hopper 82 is connected to the paddy reducing hopper 83 of the paddy hull 1. Then, the grain mainly composed of the sorted paddy rice that has flowed to the sorting end side of the rotary sorting cylinder 71 is the paddy receiving gutter 81.
In addition, the grain is dropped to the grain hulling machine 82 and the paddy reduction hopper 83, and then returned to the grain hulling section 1 to be grained again.

FIG. 10 shows a well-known roll gap adjusting device. Further, a layer thickness sensor 84 for detecting the amount of grains to be sorted is provided on the supply side in the rotary sorting cylinder 71, and the layer thickness sensor plate 84 feeds the paddy of the hulling section 1 via an interlocking member. It is linked to the control valve 85. Then
When the layer thickness sensor plate 84 moves up and down while contacting the upper surface of the grain to be selected and detects an increase or decrease in the grain layer thickness, the paddy supply control valve 85 is adjusted in relation to the decreasing side or the increasing side. The configuration is such that control is performed to maintain the amount of grains to be sorted in the rotary sorting cylinder 71 at an appropriate amount.

Although not shown in the figure, the control section 41 has switches, sensors, and actuators unique to the rotary sorting cylindrical type hull sorting machine replaced by those unique to the swing sorting apparatus 3 of the above-described embodiment. Or additionally configured. That is, a switch group (cylindrical rotation high switch, cylinder rotation low switch), a sensor group (rotation sensor for detecting the rotation speed of the rotation selection cylinder 71, a layer thickness potentiometer which rotates integrally with the layer thickness sensor plate 84. , A scattering sensor for detecting the state of picking up the grains of the rotary selection cylinder 71) and a display unit (cylindrical rotation speed display device) are connected to the respective control units 41, and
The control unit 41 includes an actuator group (a roll gap adjusting motor for adjusting the roll gap of the hulling rolls 7, 7) and a cylindrical rotation adjusting motor for adjusting the rotation speed of the rotary selection cylinder 71. 9)
Connected to each other.

Next, the control contents of the control unit 41 will be described. First, when the automatic / manual switch 44 is selected to the automatic side and the run / stop switch is turned on, the main motor 55 is turned on.
Then, the rotating parts of the paddy sorting machine are driven. Next, initial gap setting control for setting the initial gap between the hulling rolls 7 is performed. A roll gap opening command from the control unit 41 is output to the roll gap adjusting motor 58, the roll gap adjusting means is driven to open for a predetermined time, and the gap between the hulling rolls 7 and 7 is increased. Is adjusted to open, and the load current detection sensor 48 detects a non-contact state of the hulling roll that does not detect a change in the detected load current value, the open adjustment is stopped, and then a command to close the roll gap is output. Then, the roll gap is adjusted to be closed, the load current detection sensor 48 detects an increase in the load current value, and the hulling rolls 7 and 7 are detected.
When the slight contact of is confirmed, the closing adjustment is stopped. Then
An initial opening adjustment command for the roll gap is output, the roll gap adjusting motor 58 is open adjusted for a predetermined time, and is set to a predetermined initial gap (for example, 1 mm), and the initial gap setting is completed. To do.

Next, the control shifts to the shutter opening initial setting control for adjusting the paddy supply adjusting valve 85 to the initial opening.
An initial opening adjustment command is output from 1 to the paddy supply control valve adjusting motor 57, and an initial opening degree setting for opening the paddy supply adjusting valve 85 to a predetermined valve opening (for example, 10 mm) is made. Be started. Next, the control shifts to the roll clearance control based on the load current value reference. Then, the detected load current value of the load current detection sensor 48 is sent to the control unit 41, the control reference value and the detected load current value are compared, and when the detected load current value is lower (or higher) than the control reference value, Is a roll gap adjusting motor 58
A closing adjustment command (or an opening adjustment command) is output to the pad, and the gap between the hulling rolls 7, 7 is adjusted to the closing side (or the opening side) by a predetermined amount to return to the control reference value, and the detection is performed. If the load current value is within the range of the control reference value, no control command is issued and the hulling operation is performed while maintaining the roll gap as it is. Next, depending on whether the mixed rice sorting unit is the rotary sorting cylinder type or the swing sorting device type, the control reference value when adjusting the roll gap of the hulling rolls 7, 7 on the basis of the load current value is corrected. The control will be described.

When the initial gap setting control of the hulling roll is started, first, the roll gap is adjusted to be open, and the load current detection sensor 48 detects the no-load current value (IV).
It is determined that the roll gap is open, then the roll gap is closed and adjusted, and the load current detection sensor 48 determines whether or not the 125% increase load current value is detected with respect to the no-load current value (IV). When a load current value that exceeds this is detected, the selection type determination of the rotary selection cylinder type or the rocking selection device type in the mixed rice sorting unit of the hulled sorting machine is performed, and the model determination switch 86 determines the rotation selection cylinder type. A determination is made as to whether it is selected or the rocking sorter type is selected.

However, when the rocking sorter type is selected, the opening adjustment command for the roll gap initial setting control is issued as long as, for example, 6 seconds, and is initially set to a wider roll gap. When the rotary selection cylinder type is selected, a short opening adjustment command of, for example, 5 seconds is issued as compared with the above-mentioned opening adjustment, and a narrower roll gap is set. In addition,
In the initial setting control of the gap, the load current detection sensor 4
8 detects the no-load current value (IV) and determines that the roll gap is opened, and then the roll gap is closed and adjusted so that the load current detection sensor 48 increases with respect to the no-load current value (IV). When determining the presence / absence of load current value detection, the rotary selection cylinder type
By setting the reference value of the increased load current value of 5% and the swing sorting device type to 120%, the rotation sorting cylinder type can be controlled to a roll gap narrower than that of the swing sorting device type.

Further, in relation to the selection of the type determination switch 86, also in the roll clearance control based on the load current value reference, the control reference value is adjusted to be wider when the swing selection device type is used, and In the case of the rotary selection cylinder type, the correction is performed so that it is adjusted narrower. Instead of the type determination switch 86, the type may be automatically determined and automatically switched depending on the sensor signal from the sensor group of the swing sorting device type or the rotation sorting cylinder type.

As described above, in the case of the rocking / sorting device type, since the roll gap is adjusted to be wider and the removal rate is lowered, the work is performed with less scraping of the brown rice in the hulling section 1. At the same time, it is possible to reduce the brown rice reduction from the rocking sorting device 3 to the hull portion 1 to prevent damage to the brown rice. In the case of the rotary sorting cylinder type, the roll gap is adjusted to be narrower to remove the brown rice. Since the work is performed with a high percentage, it is possible to reduce the reduction of brown rice from the rotary selection cylinder 71 to the hull portion 1 and reduce the rubbing of brown rice.

[Brief description of drawings]

FIG. 1 is an overall cut side view.

FIG. 2 is a perspective view and a front view.

FIG. 3 is a front view

FIG. 4 is a block diagram.

FIG. 5 is a block diagram.

FIG. 6 is a flowchart.

FIG. 7 is a flowchart.

FIG. 8 is a flowchart.

FIG. 9 is a side view and a rear view.

FIG. 10 is a side sectional view.

FIG. 11 is a flowchart.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rice hulling part, 2 ... Rice sliding rice-style selection part, 3 ... Swing sorter, 4
... Mixed rice fryer, 5 ... Brown rice fryer, 6 ... Rice hopper, 7 ...
Hulling roll, 8 ... Hulling chamber, 9 ... Sliding rice wind selection box, 70 ... Sliding rice wind selection path, 11 ... Rice bran trough, 12 ... Sludge rice trough, 13 ...
Suction fan, 14 ... Dust cylinder, 15: Swing sorting plate, 16 ...
Distribution supply gutter, 17: distribution case, 18: brown rice partition plate, 1
9: paddy partition plate, 20: brown rice extraction gutter, 21: brown rice channel, 2
2 ... mixed rice removal gutter, 23 ... mixed rice flow path, 24 ... mixed rice hopper, 25 ... paddy extraction gutter, 26 ... paddy flow path, 27 ... paddying machine, 28 ... brown rice partition plate movement adjusting means, 29 ... Brown rice partition plate adjustment motor, 30 ... Rice / brown rice discrimination sensor, 31 ... Sensor moving means, 32 ... Sensor adjustment motor, 33 ... Partition plate origin switch (upward), 34 ... Partition plate origin switch (downward) Side), 35 ... sensor origin switch (upward swing), 36 ... sensor origin switch (downward swing), 37 ... brown rice switching valve, 38
... Brown rice switching valve adjustment motor, 39 ... Mixed rice switching valve 40 ... Mixed rice switching valve adjustment motor, 41 ... Control unit, 42 ...
Roll deployment sensor, 43 ... Glen sensor, 44 ... automatic /
Manual switch, 45 ... Derating rate upper switch, 46 ... Derating rate lower switch, 47 ... Display changeover switch, 48 ... Load current detection sensor, 49 ... Rice paddle potentiometer, 50 ...
Brown rice partition plate potentiometer, 51 ... sorting plate inclined potentiometer, 52 ... rice feed control valve potentiometer, 5
3 ... Rice supply adjustment lever potentiometer, 54 ... Rice / brown rice discrimination sensor potentiometer, 55 ... Main motor, 56
… Sorting plate inclination adjustment motor, 57… Rice supply adjustment valve adjustment motor
58, roll gap adjusting motor, 59 ... monitor display unit, 60 ... rocking / rotating adjustment motor, 61 ... serial data receiving circuit, 62 ... serial data transmitting circuit, 63 ... non-volatile memory, 64 ... Operation panel, 65 ... Reduction grain sensor,
66 ... Card checker, 67 ... IC card, 70 ... Sorting case, 71 ... Rotating sorting cylinder, 72 ... Drive roller, 73 ...
Supply spiral, 74 ... Supply trough, 75 ... Brown rice spiral, 76 ...
Brown rice gutter, 77 ... Brown rice flow down cylinder, 78 ... Brown rice flow grain plate, 79 ...
Brown rice receiving gutter, 80 ... Brown rice lifting grate, 81 ... Paddy receiving gutter, 82 ... Paddy lifting grate, 83 ... Paddy reducing hopper, 84 ... Layer thickness sensor plate, 8
5 ... Paddy supply control valve, 86 ... Model judgment switch

Claims (1)

[Claims] 1. A hulling section 1 composed of a pair of hulling rolls 7, a mixed rice sorting section capable of selecting a rocking sorting device type or a rotary sorting cylinder type, and a hulling roll. Motors for driving the motors 7, 7, roll gap adjusting means for opening and closing the gap between the hulling rolls 7, 7, and a control reference value by detecting a load current value of the motors. While comparing, a roll gap automatic control means for automatically adjusting a roll gap, a mixed rice sorting section type determining means for determining whether the mixed rice sorting section is an oscillating sorting device type or a rotary sorting cylinder type, and When the mixed rice sorting unit type discriminating means determines that it is a rotary sorting cylinder type, it is a roll for narrowing the roll gap control reference value of the roll gap automatic control means as compared with the swing sorting device type. Gap control reference value correction means,
The control device of the paddy hull sorting machine.