JPH1110013A - Controller for husking separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly execute unpolished rice partition plate control and husking roll gap control. SOLUTION: A paddy/unpolished rice sensor 30 detects the boundary position between the paddy and the unpolished rice while moving the discharge side of an oscillation separating plate 15 in a transverse direction and executes the partition control of the unpolished rice partition plate 18 and the roll gap control of husking rolls in accordance with the boundary detection position. If the paddy/unpolished rice sensor 30 fails to detect the boundary position between the paddy and the unpolished rice in spite of its movement in the entire movement range in the transverse direction, the sensor sets the prescribed position in the transverse direction of the oscillation separating plate 15 after lapse of the prescribed time from the working start time of the husking rolls at the reference value of the boundary position between the paddy and the unpolished rice and executes the partition position control of the unpolished rice partition plate 18 and the roll gap control of the husking rolls 7, 7. Then, even if the paddy/unpolished rice sensor 30 cannot detect the boundary position between the paddy and the unpolished rice, the sensor partition control of the unpolished rice partition plate and the roll gap control may be executed by setting the second reference of the boundary position between the paddy and the unpolished rice. The smooth conduction of the automatic control operation is thus ensured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for controlling a partitioning position of a brown rice partition plate of a hulling sorter and a hulling roll gap control device.

[0002]

2. Description of the Related Art A paddy / brown rice discrimination sensor detects a grain / brown rice distribution boundary position of a selected grain of a rocking sorter, and controls and adjusts a brown rice partition plate to a partitioning position. By controlling the roll gap of the hulling roll by using the detected data of the hulling roll, stabilization of the hulling rate in the hulling roll is stabilized, and There is a technique for stabilizing the boundary between rice and brown rice at a fixed position.

[0003]

With respect to the above technology,
If the boundary position between the rice and brown rice can be detected by the rice / brown rice discrimination sensor from the sorted grains of the swinging separation plate, the partition position control of the brown rice partition plate and the roll gap control of the hulling roll are performed. Although it is possible, there is a problem that even if the paddy / brown rice discrimination sensor moves in the entire movement range from the swinging side to the swinging side, when the boundary position of the paddy / brown rice cannot be detected, these controls cannot be performed.

[0004] Therefore, the present invention provides a method for controlling the partitioning of the brown rice partition plate and the hulling roll even when the boundary position between the rice and brown rice of the rocking sorting plate cannot be detected by the rice / brown rice discrimination sensor.
The purpose of the present invention is to solve such a problem by making it possible to control the roll gap.

[0005]

The present invention employs the following technical means in order to solve the problems of the prior art. That is, the present invention provides a pair of hulling rollers 7, 7 for hulling, a swing sorting plate 15, a brown rice partition plate 18, and a brown rice partition plate moving adjusting means for moving and adjusting the brown rice partition plate 18. Oscillating sorting unit having the oscillating sorting plate 1
And a rice / brown rice discrimination sensor 30 that is provided on the discharge side of No. 5 and detects a boundary position between rice and brown rice.
A rice hulling roll gap automatic control means for automatically adjusting the roll gap of the rolls 7, 7; and a brown rice partition plate 18 at a partition position related to the rice / brown rice boundary detection position of the rice / brown rice discrimination sensor 30. Brown rice partition plate automatic control means to adjust the movement, and rocking sorting plate after a predetermined time has passed from the start of the hulling operation when the boundary position of the rice / brown rice cannot be detected even when moving through the entire range of the rice / brown rice discriminating and sorting 30 15 rice / brown rice discrimination sensors 3 at predetermined positions in the horizontal direction
A control device for a hulling sorter, comprising: a paddy / brown rice boundary reference value determining means that uses 0 detection data as a paddy / brown rice boundary reference value.

[0006]

[Function] During the sorting of the oscillating sorting plate 15, brown rice is unevenly distributed on the shaking side, paddy is unevenly distributed on the shaking side, and mixed rice of paddy and brown rice is sorted while being unevenly distributed in an intermediate region. Where
The paddy / brown rice discrimination sensor 30 detects the boundary position of the paddy / brown rice while moving the discharge side of the swinging sorting plate 15 from the swinging side to the swinging side, and moves the brown rice partitioning plate 18 to the partitioning position related to the boundary detection position. Adjust the movement, or put the brown rice partition plate 18
Brown rice partition plate 1 that moves integrally with brown rice discrimination sensor 30
8 is controlled.

If the boundary position between the rice and brown rice cannot be detected even when the rice / brown rice discrimination sensor 30 moves in the entire range of movement from the rocking side to the rocking side, the hulling rolls 7, 7 are used. The detection data of the rice / brown rice discrimination sensor 30 at a predetermined position in the lateral direction of the rocking sorting plate 15 after a predetermined time has elapsed since the start of the work is set to the boundary reference value of the rice / brown rice, and the partitioning position of the brown rice partition plate 18 The control and the roll clearance control of the hulling rolls 7, 7 are executed.

[0008]

As described above, the present invention can be applied to the case where the rice / brown rice discrimination sensor 30 cannot detect the boundary position between the rice / brown rice and the second rice / brown rice. By setting the boundary position reference, it is possible to execute the partitioning control of the brown rice partitioning plate 18 and the roll gap control of the hulling rolls 7 and 7, and the automatic control operation can be smoothly performed. .

[0009]

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 is composed of an oscillating sorter 3, a mixed rice fryer 4, a brown rice fryer 5, and the like for separating and sorting rice into paddy and brown rice.

The hulling unit 1 includes a hulling 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, a pity trough 11, a sliding rice trough 12, a suction fan 13, and a dust tube 1.
4 and so on. Next, the swing sorting unit 3 will be described with reference to FIG. Multi-stage swing sorting plates 15, 15,
, The plate surface is formed with unevenness for sorting, 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 swinging side 15c. The opposite side is a lower swinging side 15d, and the swing sorting plate 15 is configured to be slanted both vertically and horizontally, and is swingably reciprocated up and down in the horizontal direction by a swinging arm and a swinging device.

The supply side 15a of the swing sorting plate 15
The mixed rice is supplied to the supply port through the mixed rice hopper 24, the distribution supply gutter 16, and the distribution case 17. In the mixed rice, small brown rice with a large specific gravity is distributed in a non-uniform flow on the rocking side 15c in the horizontal direction due to the relationship between the size of the granules, the magnitude of the specific gravity, the magnitude of the friction coefficient, and the like. The unhulled rice is distributed unevenly on the lower side 15d in the horizontal direction, and the unmixed unmixed rice of unmilled rice and brown rice is sorted while being unsteadyly distributed in the middle part thereof, and the sorted grains are the unpolished rice partition plate 18 and the undivided rice partition plate Partitioned at 19 and taken out.

The separated brown rice is taken out of the machine through a brown rice extraction gutter 20, a brown rice channel 21, and a brown rice milling machine 5, and mixed rice is mixed rice extraction gutter 22, a mixed rice channel 23, and a sliding rice. The falling rice trough 12, the mixed rice fryer 4, the mixed rice hopper 24, the distribution supply gutter 16, and the distribution case 17 are supplied to the rocking sorting plate 15 for re-sorting. The rice is returned to the rice hulling unit 1 through the rice hulling passage 26 and the rice hulling machine 27, and is then hulled again.

Although the drawings are omitted, the mixed rice hopper 2
4 and the paddy supply control valve 37 of the rice hulling unit 1 are interlockingly connected via a linking member such as a link, and when the mixed rice hopper 24 moves down or up due to an increase or decrease in the amount of grain, the paddy supply control valve 37. Is adjusted to the decreasing side or the increasing side, and the supply amount to the hulling rolls 7, 7 is adjusted. As shown in FIG. 2, the brown rice partition plate 18 can be reciprocated from the upper swinging side 15c to the lower swinging side 15d by the brown rice partitioning plate movement adjusting means 28. When the brown rice partitioning plate adjusting motor 29 is rotated forward and backward, The movement is adjusted to the swinging side 15c or the swinging side 15d. When the brown rice partition plate 18 moves to the end of the swinging upper side 15c, it is detected by the partition plate origin switch (swinging upper side) 33. When the brown rice partition plate 18 moves to the end of the lowering side 15d, the partition plate origin switch switches. (Swinging side) is detected at 34, and the movement of the brown rice partition plate 18 is stopped individually.

Above the discharge side 15b of the swinging sorting plate 15,
A rice / brown rice discrimination sensor 30 is provided. The rice / brown rice discrimination sensor 30 is configured to be movable in the horizontal direction by a sensor moving means 31 formed of a screw bar, and is configured to reciprocate in the horizontal direction when the sensor adjustment motor 32 is rotated forward and backward. Then, the rice / brown rice discrimination sensor 30 is moved upward 15
When it moves to the origin position c, it is detected by the sensor origin switch (upward swinging) 35, and when it moves to the originating position 15d on the swinging down side, it is detected by the sensor origin switch (falling down) 36, and each stops. It is a configuration to do.

The rice / brown rice discrimination sensor 30 is constructed as follows in this embodiment. The light emitting unit irradiates electromagnetic waves including light of a wavelength of water absorption and light of a reference wavelength not absorbed by water, and the amount of light reflected (or transmitted) from the kernel is received by an optical filter unit. The light is input to the light receiving section (moisture absorption wavelength light) via the
The reference wavelength light input to the built-in control unit 41 and reflected by the optical filter unit is sent to a light receiving unit (reference wavelength light), converted into a voltage value, and input to the control unit 41. Thus, the ratio of 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.

FIG. 3 shows a known arrangement for adjusting the roll gap between the hulling rolls 7, 7. When the roll gap adjusting motor 58 is rotated forward or backward, the roll gap adjusting means 5 is rotated.
The opening and closing of the roll gap is adjusted via 8a. Next, an input configuration of sensors and switches to a control microcomputer 41 (hereinafter, referred to as a control unit), and an actuator
The connection configuration to the data will be described.

The controller 41 includes, via a digital input circuit, a partition plate origin switch (upward swing) 33, a partition plate origin switch (lower swing side) 34, a sensor origin switch (upward swing) 35, and a sensor origin switch. (Swinging side) 36 and a roll deployment sensor 42 (detecting a state where the gap between the hulling rolls 7, 7 is widely opened so as not to hulling) are connected.
A grain sensor 43 for detecting the presence or absence of a grain in the paddy hopper 6 is connected via a comparison circuit, and includes an automatic / manual switch 44, a switch for raising the rate, a switch for lowering the rate, and display switching. The switches 47 are connected to each other via a digital input circuit.

A load current detection sensor 48 is connected to the control unit 41 via a comparison circuit. The control unit 41 controls the paddy partition plate 19 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 tilt potentiometer 51, the position of the rice supply control valve potentiometer 52 for detecting the opening of the rice supply control valve 37 of the rice hulling unit 1, and the position of the adjustment lever for adjusting the rice supply control valve 37 are determined. Paddy supply adjusting lever potentiometer 53 to be detected, paddy / brown rice discrimination sensor 3
A paddle / brown rice discrimination sensor movement (position) potentiometer 54 for detecting the 0 movement position is connected to each other.

The control unit 41 has a main motor 55 for driving the hulling sorter, a brown rice partition plate adjusting motor 29, a sensor adjusting motor 32, and a swing sorting plate via an output circuit. Fifteen
Sorting plate inclination adjusting motor 56 for adjusting the horizontal inclination angle of rice, and rice supply adjusting valve adjusting motor for adjusting the opening of rice supply adjusting valve 37
The motor 57, the roll gap adjusting motor 58, the brown rice switching valve adjusting motor 38, and the mixed rice switching valve adjusting motor 40 are connected to each other.

A monitor display 59 is connected to the controller 41 via a display output circuit, and a swing rotation adjusting motor 60 is connected to the controller 41 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. Further, a serial data receiving circuit 61 and a serial data transmitting circuit 62 are connected to the control section 41, and a nonvolatile memory 63 is connected to a memory section of the control section 41.

Next, the control contents of the control unit 41 will be described. First, the automatic / manual switch 44 is switched to the automatic side, the operation / stop switch (not shown) is operated to the operation side, and the main motor 55 is driven. The process proceeds to roll gap initial setting control for setting the initial gap. Then, first, the roll gap of the hulling rolls 7, 7 is opened and adjusted, and when the load current value detected by the load current detection sensor 48 does not change, the hulling rolls 7, 7 are brought into non-contact. The state is determined to be in a state, the opening adjustment is stopped, and then the roll gap is adjusted to close. When the load current detection sensor 48 detects an increase in the load current value, it is determined that the hulling rolls 7 are in slight contact. Then, the closing adjustment is stopped, and then the roll gap is opened and adjusted for a predetermined time to adjust and set a predetermined initial gap (for example, 1 mm).

Next, the rice supply control valve 37 of the rice hopper 6
The control is shifted to the shutter opening adjustment for adjusting the opening degree, an opening command corresponding to the detected opening degree of the paddy supply control valve lever potentiometer 53 is issued, and the control for adjusting the paddy supply control valve 37 to the set opening degree is performed. Done. Then, the paddy is supplied from the paddy hopper 6 to the paddy rolls 7, 7, and the padding operation is started. Next, the process proceeds to roll gap control of the hulling rolls 7, 7 based on the load current value.

Then, the paddy supply control valve potentiometer 5
2, the opening degree of the paddy supply control valve 37 is detected, and the load current value of the main motor 55 is detected by the load current detection sensor 48, and sent to the control unit 41, respectively. A reference load current value corresponding to the opening degree of the paddy supply control valve 37 is calculated (or selected from a table) by a predetermined calculation formula.

Next, the detected load current value is compared with the reference load current value. If the detected load current value is higher (or lower) than the reference load current value, the roll gap adjusting motor 5 is used.
8 is adjusted to the open side (or closed side), and the hulling work is performed while controlling the related roll gap so as to return the detected load current value to the reference load current value. If the detected load current value is within the range of the reference load current value, no control command is issued,
Continue the hulling work while maintaining the roll gap as it is.

When the partitioning control of the brown rice partitioning plate 18 is started, the light quantity control of the rice / brown rice discrimination sensor 30 is performed to adjust the brown rice to a predetermined detection voltage value. To the boundary position detection control. When the detected peak voltage value is detected by the paddy / brown rice discrimination sensor 30, the number of times of detection of the paddy detection peak voltage value within a predetermined time is compared with the control reference value, and the paddy detection peak voltage value is detected. When the number of detections is large (or small), the detection operation is continued while moving the paddy / brown rice discrimination sensor 30 to the upside 15c (or downside 15d) by a predetermined distance, and the paddy detection peak is detected.
The position at which the number of times of detection of the black voltage value falls within the range of the control reference value is defined as the boundary detection position of paddy / brown rice. Next, based on this boundary detection position, the partition position of the brown rice partition plate 4 is calculated,
The brown rice partition plate 18 is moved to the partition position.

Next, the embodiment shown in FIG. 5 will be described. In this embodiment, the rice and brown rice
The present invention relates to an improvement of a device for controlling the partitioning of the brown rice partition plate 18 in relation to the detection of a brown rice boundary position.
5 is detected, the brown rice partition plate 18 is detected.
Is adjusted to a predetermined distance to the upper side to prevent paddy mixing into brown rice.

The control will be described with reference to FIG. When this control is started, the paddy / brown rice discriminating sensor 30 detects the boundary position of the paddy / brown rice of the selected grain of the rocking sorting plate 15 and the brown rice partition plate 18 at a partition position related to the boundary detection position.
To control the adjustment. During such control, the load current detection sensor 48 detects the load current value I1 of the main motor 55, compares it with the reference overload current value imax, and obtains I1 <im.
In the case of ax, since it is not overload, the brown rice partition plate control is continued as it is, and in the case of I1> imax, it is determined that the husking rate is reduced by the hulling in the overload state, and the brown rice partition plate is determined. 18 is moved upward by one step, and the brown rice partition plate 18 is moved.
To narrow the partition width.

When the main motor 55 is overloaded, control is performed to reduce the load by opening the roll gap of the hulling rolls 7, 7 to reduce the shedding rate, and the brown rice partition plate 18 If the partitioning position was continued as it was, there was a risk that rice would enter the brown rice. However, as described above, the width of the mixed rice is increased by circulating the mixed rice hopper 24 by controlling the narrowing of the partition width of the brown rice partition plate 18 to expand the mixed rice distribution region and increase the amount of mixed rice. As the amount of rice increases, the paddy supply control valve 37 of the rice hulling unit 1 is adjusted to the decreasing side to recover the sludge rate, and without decreasing the sludge rate, the main motor 55 Overload can be reduced.

Next, the embodiment shown in FIG. 6 will be described. In this embodiment, the gap between the hulling rolls is automatically controlled by using the detection data of the hulling / brown rice discriminating sensor 30 for detecting the boundary position of the hulling / brown rice on the swing sorting plate 15. Things. When this control is started, the boundary position between the rice and brown rice is detected by the rice / brown rice discrimination sensor 30, and the boundary detection position is compared with a reference value to determine whether the boundary detection position is higher than the reference value position. Is determined. When the boundary detection position is located on the upper side and the brown rice partition width at the brown rice partition plate 18 is narrow, a roll gap closing adjustment command is issued, and the roll gap adjustment motor 58 is activated. It rotates forward and the roll gap between the hulling rolls 7, 7 is closed and adjusted. When the boundary detection position is on the lower side than the reference position, the hulling operation is continued while maintaining the roll gap.

Next, the embodiment shown in FIG. 7 will be described. In this embodiment, the paddy / brown rice distribution boundary position of the sorted grains of the rocking sorting plate 15 is detected by the paddy / brown rice discriminating and sorting 30 and the brown rice partition plate 18 is adjusted and controlled to the partitioning position, and the paddy / brown rice is controlled. The present invention relates to an improvement of a control device for controlling the roll gap of the hulling rolls 7 by using the detection data of the discriminating and sorting 30 so as to maintain the rice-brown rice boundary distribution position at a constant position. In the state where the partition position of the brown rice partition plate 18 does not move upward, the valve opening of the paddy supply control valve 37 does not change to the closed side, and the load of the main motor 55 is increased. If the current value is significantly reduced (for example, the load current value at the time of no-load operation + 1 amp), it is determined that the paddy hopper 6 is out of paddy and the roll gap control based on the load current value or the loss rate reference. Is stopped, and the process shifts to a work end process.

The control flow will be described with reference to FIG. When this control is started, the load current value of the main motor 55 is detected by the load current detection sensor 48, and the detected load current value I1 is compared with the reference lower limit load current value I0. Then I1
In the case of ≧ I0, it is determined that the appropriate hulling is performed by the hulling rolls 7,7,
The process proceeds to control of the roll gap of the hulling rolls 7, 7 based on the detection of the brown rice boundary position.

When I1 <I0, it is determined that the supply of the rice to the hulling roll has been reduced to an inappropriate hulling state, and it is determined whether or not the brown rice partition plate 18 has moved upward. I do. When the brown rice partition plate potentiometer 50 detects the movement of the brown rice partition plate 18 to the swinging side, the grain distribution width decreases while the distribution width of the grain is narrowing and moves to the swinging side. Then, it is determined that the control of the brown rice partition plate 18 is following, and the roll gap control based on the detection data of the rice / brown rice discrimination sensor 30 is continued.

When the brown rice partition plate 18 does not move upward, the rice feed control valve potentiometer 52 detects that the opening of the rice feed control valve 37 has changed to the closed side. It is determined whether or not the roll gap control corresponding to the decreasing change of the paddy supply control valve 37 is performed if the change to the closing side is detected. The paddy
The execution of the roll gap control based on the detection data of the brown rice discrimination sensor 30 is continued.

The paddy supply control valve potentiometer 52
When the detection data of the hulling rolls 7 and 7 does not change to the closing side, the supply amount to the hulling rolls 7 and 7 is reduced.
It is determined that proper detection has not been performed, and the brown rice partition plate 18 is not detected.
To the movement based on the work end processing, and the brown rice partition plate 1
8 is moved to the rocking side, which is the work end processing position. In addition,
The work end process is to move the brown rice partition plate 18 further upward than the uppermost rocking position of the rocking sorting plate 15 to partition the whole amount of the plate surface distribution grain on the lower side of the brown rice partition plate 18 and to remove the grain. The whole amount is returned to the hulling unit 1 and the hulling in the hulling unit 1 is repeated several times to hull the entire amount of the reduced grains. Next, the brown rice partition plate 18 is moved to the swinging side to take out the grains separated on the swinging side of the brown rice partition plate 18 from the brown rice fryer 5 and the brown rice switching valve (not shown) inside the machine. Switching to the circulation side, the grains dropped from the swinging side of the swinging sorting plate 15 are returned to the hulling unit 1 and the hulling is repeated several times, and then the brown rice switching valve (not shown) is taken out of the machine. And a known method of taking it out of the brown rice fryer 5 outside the machine.

At the end of the work in which the paddy has been cut, the distribution width of the grains gradually narrows, and the distributed grains move upwards while sorting continues. In the one that performs the control of the roll gap of the hulling roll by detecting in the above, the erroneous control of sequentially opening the roll gap may be executed. In addition, it is possible to accurately determine whether the paddy has run out at the end of the operation, and prevent erroneous control of the roll gap control. Next, FIG. 8 will be described.

In this embodiment, the rice / brown rice distribution boundary position of the sorted grains of the rocking / sorting plate 15 is detected by the rice / brown rice discriminating / sorting 30, and the brown rice partition plate 18 is adjusted and controlled to the partition position. Using the detection data of the rice / brown rice discrimination sensor 30, a control device that controls the roll gap of the rice hulling rolls 7 and keeps the rice / brown rice boundary distribution position at a fixed position. If the rice / brown rice discrimination sensor 30 is abnormal, the control is switched to the roll gap control based on the load current value control to continue the roll gap control of the hulling roll. is there.

Hereinafter, the control flow shown in FIG. 8 will be described. When this control is started, it is determined whether or not the abnormality of the rice / brown rice discrimination sensor 30 has occurred. This abnormality determination is determined to be abnormal, for example, when the data input from the sensor is interrupted or when the data input value deviates from a predetermined appropriate reference range. When the rice / brown rice discrimination sensor 30 is normal, the boundary position between the rice / brown rice discrimination sensor 30 is detected by the rice / brown rice discrimination sensor 30 and the rice is detected by the rice / brown rice discrimination sensor movement (position) potentiometer 54.・ Detect the boundary position (K1) of brown rice.

If the boundary position cannot be detected after a lapse of a predetermined time (for example, two minutes) even if the operation shifts to the operation of detecting the boundary position, a predetermined length from the lowermost position of the rocking selection plate 15 is determined. The position of K0 is temporarily determined as the boundary reference value (K
0). Then, based on the detection value of the rice / brown rice discrimination sensor 30 and the detection value of the rice / brown rice discrimination sensor movement (position) potentiometer 54, the movement position (K1) of the rice / brown rice discrimination sensor 30 and the boundary reference value (K0) are obtained. And K0 <K1
In the case of swinging above the reference position, the roll gap is closed and adjusted, and in the relationship of K0> K1 and swinging below the reference position, the roll gap is adjusted. .

When the rice / brown rice discrimination sensor 30 is abnormal, the control is switched to the roll gap control based on the load current value in connection with the abnormality occurrence judgment. Then, the load current value (I1) is detected by the load current detection sensor 48, and the valve opening degree (B1) of the rice supply control valve 37 is detected by the rice supply control valve potentiometer 52. Value (I
1) The control reference value H1 is set from the ratio of the detection valve opening (B1).

Next, from the detection values of the load current detection sensor 48 and the paddy supply control valve potentiometer 52, the ratio value (H
1 = I1 / B1) is calculated and compared with the reference load current value H0. When H0 <H1, the roll gap is adjusted, and when H0> H1, the roll gap is adjusted. Adjust the closing of. In this embodiment, since the structure is as described above,
Even if the brown rice discrimination sensor 30 is out of order, the roll gap control of the hulling rolls 7, 7 can be continued, and the loss rate of the hulling rolls 7, 7 is prevented from lowering.籾 The hulling work can be continued while maintaining the rate.

Next, FIG. 9 will be described. In this embodiment, the rice / brown rice discrimination sensor 30 detects the boundary between the rice / brown rice distribution of the selected grains of the swinging / sorting plate 15 and the brown rice partition plate 18.
Is adjusted to the partition position, and the detection data of the rice / brown rice discrimination sensor 30 is used to control the hulling rolls 7,7.
This is related to the improvement of the control to control the roll gap of the paddy so that the boundary position of the paddy / brown rice is maintained at a fixed position.
If the boundary detection position of the brown rice discrimination sensor 30 is significantly lower than the swinging selection plate 15, it is determined that the excessively high loss rate has been reached, and the roll gap is opened by a predetermined amount and adjusted for a predetermined time. The subsequent roll gap control is performed using the later detected boundary position of the rice / brown rice discrimination sensor 30 as a control reference boundary position.

Next, the control flow will be described with reference to FIG. When this control is started, the boundary position (K1) between the rice and the brown rice is detected by the rice / brown rice discrimination sensor 30. Next, the detected boundary position (K1) is compared with the lower limit position (KMIN). Therefore, if K1 <KMIN (the boundary detection position is located further on the lower side than the lower limit position), it is determined that the excessively high loss rate is present, and the hulling roll 7, If the roll gap of No. 7 is adjusted by a predetermined amount, and the paddy / brown rice discrimination sensor 30 cannot detect the boundary position of the paddy / brown rice even after moving the entire range of movement, the process proceeds to the next step.

Next, the boundary position between the rice and brown rice is detected by the rice / brown rice discrimination sensor 30, and the presence or absence of the boundary position is determined.
If the brown rice discrimination sensor 30 can detect the boundary position,
Roll gap control is started by comparing the detected boundary position with the original reference boundary position. If the boundary position cannot be detected by the paddy / brown rice discrimination sensor 30, the position above the lowermost position by a predetermined distance is set as a temporary reference boundary position (K0), and the roll gap control is performed. Transition. Thus, the boundary position is detected by the rice / brown rice discrimination sensor 30, and the boundary detection position (K1) is compared with the reference boundary position (K0). The gap is closed by one step, and the detection position is K0>
In the case of K1, the roll gap is adjusted by one step.

When the roll gap is extremely narrow, and the degassing rate is high,
A large amount of brown rice is mixed in the reduced grain from the swinging sorting plate 15 to the hulling unit 1 and the quality of brown rice is reduced due to the increase of broken rice and width-sliding rice, or the roll gap is narrower than necessary. There is a problem that the hulling rolls 7 and 7 are abraded at an early stage, but the above control can prevent such a problem.

Next, the embodiment shown in FIG. 10 will be described. In this embodiment, the paddy / brown rice distribution boundary position of the sorted grains of the rocking sorting plate 15 is detected by the paddy / brown rice discrimination sensor 30,
The brown rice partition plate 18 is adjusted and controlled to a partition position, and the detection data of the rice / brown rice discrimination sensor 30 is used to control the roll gap of the rice hulling rolls 7, 7 to thereby control the rice / hull. It relates to improvement of control to keep the brown rice boundary position at a fixed position of the swing sorting plate 15, and even if the rice / brown rice discrimination sensor 30 is moved over the entire range of movement, the rice / brown rice boundary position cannot be detected. In this case, a predetermined distance (or 5 minutes) has passed since the start of the hulling operation, and the rocking sorting position of the rocking sorting plate 15 from the lowest rocking (or rocking) position by a predetermined distance is set to the paddy rice.
The subsequent roll gap control is performed as the reference boundary position of brown rice.

The control contents will be described based on the flow of FIG. When this control is started, it is determined whether or not a predetermined time for stabilizing the sorting state on the rocking sorting plate 15 has elapsed from the start of the operation of the hulling rolls 7, 7 and when the predetermined time has elapsed. Rice / brown rice discrimination sensor 30
To detect the boundary position (K1) between the paddy and brown rice.

Next, the presence or absence of a boundary reference value (K0) is determined. If there is a boundary detection position, the boundary detection position is compared with the reference boundary value (K0), and the roll gap opening / closing control is performed. Execute. When there is no boundary reference value between the rice and brown rice in the data detected by the rice / brown rice discrimination sensor 30, the rice is shaken a predetermined distance from the lowermost (or upper) position of the rocking sorting plate 15. The position (K
The detection value (K0) in 1) is set to a provisional reference value.

Thus, the boundary position is detected by the rice / brown rice discrimination sensor 30, and the boundary detection position (K1) is compared with the reference boundary position (K0). In the case of K1, the roll gap is closed and adjusted by one step, and the detection position is shifted to the lower side. K0> K1
In the case of, the roll gap is adjusted by one step, and K0 =
In the case of K1, opening / closing control for maintaining the roll gap as it is is performed.

By performing such control, even when the detection position of the boundary between rice and brown rice cannot be detected within a predetermined reference range depending on the type of grain, the rolling of the rice hulling rolls 7, 7 can be performed. Gap control can be performed. Next, an embodiment shown in FIG. 11 will be described. In this embodiment, the paddy / brown rice distribution boundary position of the sorted grains of the rocking sorting plate 15 is detected by the paddy / brown rice discrimination sensor 30, and the brown rice partition plate 18 is adjusted and controlled to the partition position, and the paddy / brown rice is controlled. Using the detection data of the discrimination sensor 30 to control the roll gap of the hulling rolls 7, 7 to improve the control to keep the hulling / brown rice boundary position at a fixed position. It is.

During the hulling operation, if the husking rate upper switch 45 or the husking rate lower switch 46 is operated to adjust the husking rate, in relation to this, the hulls, which are the reference of the roll gap control, are controlled. Since the boundary position of brown rice changes, the previous control reference value is deleted, and the boundary position of rice / brown rice after a lapse of a fixed time (for example, 5 minutes) after adjustment is set as a new boundary reference position. To control the gap between the wheels.

The control flow will be described with reference to FIG. When this control is started, it is determined whether or not the escape rate upper switch 45 and the escape rate lower switch 46 have been adjusted by the operator. The roll gap is closed and adjusted by one step, the previous reference value is erased, and when the lock-down switch 46 is adjusted, the roll gap is adjusted by one step and adjusted to the previous control standard. Clear the value. If the switch 45 and the switch 46 are not adjusted, the roll gap is controlled based on the set reference value (K0).

When the screw release rate upper switch 45 or the screw release rate lower switch 46 is adjusted, the crushed rice crushed by the rice crushing rolls 7, 7 after the roll gap control is swung. Sorting plate 15
It is determined whether or not a predetermined time (for example, 5 minutes) has passed until the sorting state is stabilized. After a certain period of time, the paddy / brown rice discrimination sensor 30 moves in the entire moving range to detect the boundary position of the paddy / brown rice (K1), and determines the presence or absence of the boundary detection position of the paddy / brown rice. If there is a boundary detection position, the opening / closing control of the roll gap is executed by comparing the boundary detection position with the boundary reference value (K0).

If the paddy / brown rice discrimination sensor 30 cannot detect the boundary position even after moving over the entire range, the paddle / brown rice discrimination sensor 30 moves up and down a predetermined distance from the lowermost (or upper) position of the oscillating sorting plate 15. Alternatively, the position deviated to the lower side is set as a provisional boundary reference value (K0 = K1). Next, the boundary position of the rice / brown rice is detected from the detection data of the rice / brown rice discrimination sensor 30 and the rice / brown rice discrimination sensor movement (position) potentiometer 54, and the provisional boundary is detected with the boundary detection position (K1). The detected position is compared with the reference value (K0), and if K0 <K1 where the detected position is deviated upward, the roll gap is adjusted by one step, and the detected position is deviated downward. K0> K
In the case of 1, the roll gap is adjusted by one step, and K0
In the case of = K1, opening and closing control is performed to maintain the roll gap as it is.

By adopting the above control, the operation
Each time the evacuation rate is adjusted to high or low by adjusting the data, the reference position of the boundary between rice and brown rice can be updated, allowing the operator to work smoothly while maintaining the desired evacuation rate. . Next, an embodiment shown in FIG. 12 will be described. In this embodiment, the paddy / brown rice distribution boundary position of the sorted grains of the oscillating sorting plate 15 is detected by the paddy / brown rice discrimination sensor 30, and the brown rice partition plate 18 is adjusted and controlled to the partitioning position.
Using the detection data of the brown rice discrimination sensor 30, the hulling ro
The present invention relates to an improvement in control for controlling the roll gap between the rolls 7 and 7 so as to maintain the position of the boundary between the paddy and brown rice of the swing sorting plate 15 at a fixed position.

The detection position of the boundary between rice and brown rice as a control reference is stored in a non-volatile memory, and the reference boundary position is stored even after the power is turned off, to facilitate the next work operation. The control contents will be described based on the flow shown in FIG. When this control is started, the boundary reference value (K0) is read from the nonvolatile memory 63 and used as the control reference value.
Next, the boundary position (K1) of the rice / brown rice is detected from the detection data of the rice / brown rice discrimination sensor 30 and the rice (brown rice) discrimination sensor movement (position) potentiometer 54, and the boundary reference value (K0) is determined. The presence or absence is determined, and if there is a boundary reference value (K0), the boundary detection position (K1) and the boundary reference value (K0) are determined.
0), the roll gap opening / closing control is executed.

The detected data includes a boundary reference value (K0).
If there is no, the position (K1) deviated upward (or downward) by a predetermined distance from the lowermost (or upward) position of the swing sorting plate 15 is the boundary reference value (K1 = K0). Tentatively, stored in the non-volatile memory 63, and starts control. Thus, the boundary position (K1) of the rice / brown rice is detected from the detection data of the rice / brown rice discrimination sensor 30 and the rice / brown rice discrimination sensor movement (position) potentiometer 54, and the boundary detection position (K1) is determined. The control reference boundary position (K0) is compared, and if the detection boundary position is deviated upward, K0 <K1, the roll gap is adjusted by one step to close, and the detection boundary position fluctuates. When K0> K1 which is deviated to the lower side, the roll gap is controlled to open by one step, and when K0 = K1, control is performed to maintain the roll gap as it is.

By performing such control, the same loss rate as in the previous time can be obtained during the re-grinding operation, and the operation for adjusting the loss rate every time the operation is started can be omitted and the operation can be simplified. Can be. During the automatic operation at the end of the operation with the rocking sorting plate 15 or at the start of the operation, the automatic movement of the brown rice partition plate 18 cannot keep up with the change in the flow of the grain, and the operator manually adjusts the brown rice partition plate 18. May respond. In this embodiment, the movement of the rice / brown rice discrimination sensor 30 in such a case is to be smoothly and rationalized.

When the operator manually adjusts the brown rice partitioning plate 18 during the work end processing, the manual adjustment distance and adjustment direction from the start of adjustment to the end of adjustment are measured, and the rice is adjusted in the same direction by the measured adjustment distance. The brown rice discrimination sensor 30 is moved to follow. The control flow will be described with reference to FIG. When this control is started, the rice / brown rice discrimination sensor movement (position) potentiometer 54 causes the brown rice partition plate 1 to move.
8 is detected. It is determined whether or not the manual change adjustment of the brown rice partition plate 18 has been completed.

When the manual adjustment of the brown rice partition plate 18 has been completed, the adjustment distance is calculated from the time measured by the timer function and the moving speed of the brown rice partition plate 18.
Based on the change in the movement (position) potentiometer 54 of the brown rice discrimination sensor, it is determined whether the adjustment is upward or downward, and the timer function is reset. Then, brown rice partition plate 1
The moving distance of the rice / brown rice discrimination sensor 30 is calculated from a predetermined calculation formula (or a predetermined table) based on the adjustment distance of No. 8, and the adjustment driving time of the sensor adjustment motor 32 is determined.
Set the movement adjustment direction of the swinging up or down side, and
The movement of the brown rice discrimination sensor 30 is started. When the paddy / brown rice discrimination sensor 30 starts moving, the timer function is started.
The determination of whether or not the time is up is repeated, and when the time is up, the movement of the rice / brown rice discrimination sensor 30 is stopped,
Reset the timer function.

As described above, since the paddy / brown rice discrimination sensor 30 is moved in association with the manual adjustment of the brown rice partition plate 18, the paddy / brown rice detection sensor 30 is moved.
The brown rice discrimination sensor 30 moves quickly to the vicinity of the boundary between the rice and the brown rice, and can control the brown rice partition plate smoothly. Next, an embodiment shown in FIG. 14 will be described.
In this embodiment, the paddy / brown rice distribution boundary position of the sorted grains of the rocking sorter 15 is detected by the paddy / brown rice discrimination sensor 30, and the brown rice partition plate 18 is adjusted and controlled to the partitioning position. The present invention relates to the improvement of control for controlling the roll gap based on the load current value by measuring the load current value of the main motor 55 for driving the rolls 7,7. The roll gap control is intended to be performed while measuring the width of the distribution and correcting the control reference value in relation to the width.

The control contents will be described based on the flow of FIG. When this control is started, the rice / brown rice discrimination sensor 30
While moving to the lower side or upper side, the distribution data of the paddy / brown rice is measured, the boundary position of the paddy / brown rice is measured, and the movement of the brown rice partition plate 18 to the related partition position is controlled. Next, a load current value of the main motor 55 is measured by the load current detection sensor 48. Next, the spread of the mixed rice layer is measured from the measurement data of the paddy / brown rice discrimination sensor 30, and the spread measurement width of the mixed rice layer is compared with a reference value to determine whether the measured spread width is narrow. If the measurement spread width is narrow, the control reference value is corrected to the predetermined amount on the open side. Thus, the roll gap control is performed by comparing the measured load current value of the main motor 55 with the corrected reference value.

If the spread width of the measured mixed rice layer is not narrower than the reference value, it is determined whether the spread width of the measured mixed rice layer is wider than the reference value. Performs the roll gap control by correcting the control reference value by a predetermined amount toward the closed side of the roll gap, comparing the measured load current value with the corrected reference value. If the measured mixed rice layer is not large, the roll gap control is performed by comparing the measured load current value with the reference value without correcting the control reference value.

By performing the above-described control, it is possible to efficiently perform the hulling sorting operation while preventing the mixing of the hulling into the brown rice and the rubbing of the brown rice.

[Brief description of the drawings]

FIG. 1 is an overall cut side view.

FIG. 2 is a perspective view

FIG. 3 is a cut front view.

FIG. 4 is a block diagram.

FIG. 5 is a flowchart.

FIG. 6 is a flowchart.

FIG. 7 is a flowchart.

FIG. 8 is a flowchart.

FIG. 9 is a flowchart.

FIG. 10 is a flowchart.

FIG. 11 is a flowchart.

FIG. 12 is a flowchart.

FIG. 13 is a flowchart.

FIG. 14 is a flowchart.

[Explanation of symbols]

1 ... rice hulling part, 2 ... rice falling rice style selection part, 3 ... rocking sorting part, 4 ...
Mixed rice fryer, 5 ... Brown rice fryer, 6 ... Rice hopper, 7 ... Rice hulling roll, 8 ... Rice hulling room, 9 ... Rice crushed rice selection box, 10 ... Rice crushed rice selection path, 11 ... Pity trough, 12: sliding rice trough, 13: suction fan, 14: dust cylinder, 15: swing sorting plate, 16: distribution supply gutter, 17: distribution case, 18: brown rice partition plate, 19
... Rice partition plate, 20 ... Brown rice extraction gutter, 21 ... Brown rice channel, 22
... mixed rice extraction gutter, 23 ... mixed rice channel, 24 ... mixed rice hopper 25 ... paddy extraction gutter, 26 ... paddy channel, 27 ... paddying machine, 2
8: 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 (swinging side) 35
... Sensor origin switch (upward), 36 ... Sensor origin switch (downward) 37 ... Rice supply control valve, 38 ... Brown rice switching valve adjustment motor, 40 ... Mixed rice switching valve adjustment motor, 41 ...
Control unit, 42: Roll deployment sensor, 43: Glen sensor, 44: Automatic / manual switch, 45: High rate switch, 46: Low rate switch, 47: Display changeover switch, 48: Load current detection Sensor 49: Rice partition plate potentiometer, 50: Brown rice partition plate potentiometer, 51 ...
Sorting plate tilt potentiometer, 52 ... Rice supply control valve potentiometer, 53 ... Rice supply control lever potentiometer
, 54: Rice / brown rice discrimination sensor movement (position) potentiometer, 55: Main motor, 56: Sorting plate inclination adjustment mode
, 57 ... Rice supply control valve adjustment motor, 58 ... Roll gap adjustment motor, 59 ... Monitor display unit, 60 ... Swing rotation adjustment motor 61 ... Serial data receiving circuit, 62 ... Serial data -Data transmission circuit, 63 ... nonvolatile memory.

Claims (1)

[Claims] 1. A pair of hulling rolls 7, 7 for hulling, a swing sorting plate 15, a brown rice partition plate 18, and a brown rice partition plate movement adjusting means 28 for moving and adjusting the brown rice partition plate 18. And a rice / brown rice discriminating sensor 30 provided on the discharge side of the rocking / sorting plate 15 for detecting the boundary position between the rice and brown rice, and the rice / brown rice of the rice / brown rice discrimination sensor 30 Hulling roll gap automatic control means for automatically adjusting the roll gap of the hulling rolls 7, 7 based on the boundary detection position of hulling, and the hulling / brown rice boundary detection position of the hulling / brown rice discrimination sensor 30 Automatic control means for moving and adjusting the brown rice partition plate 18 to the partition position related to the above, and the hulling operation when the boundary position of the rice and brown rice cannot be detected even when the whole range of the rice / brown rice discriminating and sorting 30 is moved. After the elapse of a predetermined time from the start, the paddy rice Detection de US discrimination sensor 30 - and paddy-rice boundary reference value constant means to the boundary reference value of paddy-rice a motor control device for hulling sorter consisting of.