JPH09103746A - Controller for oscillator selector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To judge whether a hulling work stage is an early one or a continuous one on a work start by driving an oscillating selection plate with respect to work start detection or work finish detection and moving a unhulled/unpolished rice discrimination sensor to a position on the utmost oscillation lower side and installing a sensor for an unpolished rice partition plate to the utmost oscillation upper side to perform movement control. SOLUTION: A unhulled/unpolished rice discrimination sensor 6 detects if there are grains on the utmost oscillation lower side 2d of an oscillating selection plate 2. In the case there are reduced grains, determination that work should be resumed from where left out is made, and boundary detection of the unhulled/unpolished rice discrimination sensor 6 is made to perform movement control to a partition position of a unpolished rice partition plate 4. In the case there are not reduced grains, determination that grains are not distributed on the utmost oscillation lower side 2d of the oscillation selecting plate 2 is made, and prior to the boundary position detection of the unhulled/unpolished rice discrimination sensor 6, movement control to the utmost oscillation upper side 2c of the unpolished rice partition plate 4 is performed. In this way, the movement control of the unhulled/unpolished rice discrimination sensor and the unpolished rice partition plate on a work start is speeded up.

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 swing sorting device.

[0002]

2. Description of the Related Art While swinging a mixed rice from a high supply side to a low discharge side in a vertical direction of an oscillating sorting plate, the rice is oscillated up and down horizontally in a slanting direction to a high side in a horizontal direction. In the rocking sorting device that selects brown rice, unhulled rice on the lower shaking side, and unsorted mixed rice in the middle part of these with a non-uniform distribution, the selected grains on the discharge side of the rocking sorting plate are sorted. While the paddy / brown rice discrimination sensor moves back and forth between the rocking side and the rocking side,
There is one that detects the distribution boundary position between brown rice and mixed rice and moves the brown rice partition plate near the boundary position of the paddy / brown rice discrimination sensor.

[0003]

SUMMARY OF THE INVENTION The present invention effectively utilizes a paddy / brown rice discrimination sensor that reciprocates between the rocking side and the rocking side of the rocking sorting plate of the prior art described above, and at the start of work. At the time, judge whether the hulling work is an initial work or a continuous work,
It is intended to facilitate the grain processing at the start of the work of the rocking sorting plate.

[0004]

The present invention has taken the following technical means in order to solve the problems of the prior art. That is, the present invention is a hulling device for hulling,
While swinging the mixed rice from the higher supply side 2a in the vertical direction of the swing selection plate 2 to the lower discharge side 2b, it horizontally oscillates up and down and reciprocally swings up and down to the upper side 2c of the higher swing in the horizontal direction. Is disposed on the discharge side 2b of the rocking sorting plate 2 and the rocking sorting device that sorts the unhulled rice on the lower rocking side 2d and the unsorted mixed rice in the middle portion of the rice. In addition, the paddy / brown rice discrimination sensor 6 capable of reciprocating between the brown rice and the paddy distribution basin in the lateral direction, and lateral movement adjustment to the downflow discharge portion of the sorted grain on the discharge side 2b of the rocking sorting plate 2 can be adjusted. Related to the brown rice partition plate 4, a sensor moving means for moving and adjusting the paddy / brown rice discrimination sensor 6 in the lateral direction of the rocking / sorting plate 2, and the detection of the boundary position between the brown rice and the mixed rice of the paddy / brown rice discrimination sensor 6. A partition plate control means for moving and adjusting the brown rice partition plate 4, the hulling device, and the shaker. A sensor which is driven in connection with the work start detection or the work end detection of the sorting plate 2 and which moves the paddy / brown rice discrimination sensor 6 to the most oscillating lower side 2d position and the brown rice partition plate 4 to the most oscillating upper side 2c. The control device of the rocking and sorting device is composed of a brown rice partition plate movement control means.

[0005]

[Function] A mixed rice of unhulled rice and brown rice is supplied to the rocking sorting plate 2 and is flowed from the higher supply side 2a in the vertical direction to the lower discharge side 2b, while moving in the horizontal direction from the upper side 2c to the lower side 2d. When it is sorted by reciprocally swinging up and down diagonally, brown rice is unevenly distributed on the rocking upper side 2c of the rocking sorting plate 2, and paddy is unevenly distributed on the rocking lower side 2d. Mixed rice is sorted with uneven distribution. In this way, in the stable sorting state in which the entire width of the plate surface is distributed, the paddy / brown rice discrimination sensor 6 is reciprocally moved between the rocking side 2c and the rocking side 2d on the discharge side 2b of the rocking sorting plate 2, A boundary area between brown rice and mixed rice is detected, and a sorting operation is performed while moving and adjusting the brown rice partition plate 4 in relation to the detected boundary area.

At the start of the hulling / sorting operation, the presence / absence of reducing grains to the hulling device on the swaying side 2d of the swing / sorting plate 2 is detected by the paddy / brown rice discrimination sensor 6 in association with the detection of the start of the work. During the initial work in which there is no reduced grain detected, the rice / brown rice discrimination sensor 6 waits until it becomes a full width distribution state in which reduced grain is detected, and then starts moving to the swaying side 2c and partitions the brown rice by detecting the boundary position. The automatic control of the plate 4 is started. Also, when the paddy / brown rice discrimination sensor 6 starts to work on the swaying side 2d,
During the continuous work of detecting the reduced grains to the hulling device, the paddy / brown rice discrimination sensor 6 immediately starts moving to the upper side 2c and the control of the brown rice partition plate 4 is started.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below. As shown in FIG. 1, the swing sorting plate 2 of the swing sorting device 1 is inclined such that the supply side 2a on one side in the vertical direction is at a high position and the discharge side 2b on the other side in the vertical direction is at a low position, and The upper side of one side in the horizontal direction is the upper side 2c, and the lower side of the other side in the horizontal direction is the lower side 2d. The swinging device (not shown) reciprocally swings up and down in the horizontal direction, and the supply hopper 3 Mixed rice is supplied from. A brown rice partition plate 4 and a paddy partition plate 5 for partitioning the sorted grains are arranged so as to face the discharge side 2b of the swing sorting plate 2.

Thus, the mixed rice fed to the rocking / sorting plate 2 is subjected to horizontal reciprocal rocking up and down and sorted while flowing from the vertical supply side 2a to the discharge side 2b. The small brown rice with a high specific gravity is unevenly distributed on the rocking side 2c, and the large rice with a low specific gravity is unevenly distributed on the rocking side 2d.
Unsorted mixed rice is sorted while being distributed unevenly in these intermediate portions, and the sorted grains are separated by the brown rice partition plate 4 and the paddy partition plate 5 and taken out.

A paddy / brown rice discrimination sensor 6 is arranged so as to face the discharge side 2b of the rocking / sorting plate 2, and a sensor support portion 6a of the paddy / brown rice discrimination sensor 6 is constituted by a screw rod. It is reciprocally supported by the moving means 7 from the upside 2c to the downside 2d, and can be reciprocated by the forward and reverse rotations of the sensor adjustment motor 8. In addition,
Reference numeral 9 is a sensor guide rod for guiding and supporting the sensor support portion 6a.

Below the sensor moving means 7, there is provided a partition plate moving means 10 composed of a screw rod, and the brown rice partition plate 4 is movably supported by the partition plate moving means 10. By the normal and reverse rotation of the partition plate adjustment motor 11, the swinging selection plate 2 moves from the uppermost position 2c to the lowering side 2d.
It is configured to be able to reciprocate to a position approaching the paddy partition plate 5.

The paddy / brown rice discrimination sensor 6 is constructed as follows in this embodiment. When the kernel is irradiated with near-infrared light including a wavelength range absorbed by the light from the light emitting section, the optical filter section receives the reflected light from the kernel, and only the wavelength range absorbed by the water is the optical filter section. After passing through, is sent to the light receiving section which is an infrared detecting element section, and converted into a large and small voltage by the infrared detecting element section according to the amount of near infrared light in the wavelength range, and the converted large and small voltage values are It is sent to the discriminating unit of the control unit 12 with a built-in CPU and discriminates between paddy and brown rice at a predetermined discriminating threshold. Note that the detection wavelength range is not limited to the infrared light described above, and light including the wavelength range absorbed by moisture, or the amount of transmitted light or reflected light in other wavelength ranges of infrared light may cause the paddy.・ You may judge brown rice.

The control unit 12 with a built-in CPU has a partition plate position sensor 13 for detecting the moving positions of the paddy / brown rice discrimination sensor 6 and the paddy / brown rice discrimination sensor 6 via an input interface (not shown). The partition plate position sensor 14 that detects the moving position of the brown rice partition plate 4, and the sensor origin position switch that detects the movement of the paddy / brown rice discrimination sensor 6 to the most oscillating lower side 2d position and the most oscillating upper side 2c position. Side) 15a, sensor origin position switch (swing side) 15b, partition plate origin position switch (swing side) 16a for detecting movement of brown rice partition plate 4 to the most swinging upper side 2c position, partition plate origin position switch (swing side) ) 16b are connected to the control unit 12 respectively.
Further, a sensor adjusting motor 8 and a partition plate adjusting motor 9 are connected to the control unit 12 via an output interface (not shown).

Next, the control contents of the control unit 12 will be described. First, the light amount of the paddy / brown rice discrimination sensor 6 is adjusted as follows, and the paddy and brown rice are adjusted to have a predetermined detection voltage. That is, when the swing sorting plate 2 enters a stable sorting state (grains are distributed over the entire width from the swinging side 2c to the swinging side 2d), the light amount adjustment control is started, and the control unit 12 outputs an initial reference light amount adjusting voltage. Then, the paddy / brown rice discrimination sensor 6
Moves from the uppermost rocking side 2c to the lowermost rocking side 2d, the grain voltage is read in sequence, and the detected voltages of brown rice, mixed rice, and paddy from the upper rocking side 2c to the lower rocking side 2d are as shown in FIG. , Is detected. Next, it is compared whether or not the brown rice voltage value of the swaying side 2c and the paddy voltage value of the swaying side 2d are within a predetermined reference voltage value, and when the reference voltage value is high or low, the light amount reference voltage is further increased. Is adjusted to the decrease side or the increase side and enters the range of the reference voltage value, the light amount adjustment ends. Then, as shown in FIG. 3, the boundary reference voltage value VS for determining the boundary portion between the brown rice and the mixed rice is set based on a predetermined calculation formula from the brown rice voltage value VK and the paddy voltage value VM of the voltage distribution chart. To be done. When the light amount adjustment control is completed, the process moves to the control of detecting the boundary position between the paddy and brown rice by the paddy / brown rice discrimination sensor 6. Then, the paddy / brown rice discrimination sensor 6 is moved to the uppermost rocking 2c side, and the sensor origin position switch (upward rocking) 15b is turned on to detect the movement to the uppermost rocking 2c. Next, the paddy / brown rice discrimination sensor 6 moves to the swaying side 2d, and the detection voltage value V of the paddy / brown rice discrimination sensor 6 is sequentially read by the control unit 12. Then, when the detected voltage value V is compared with the boundary reference voltage value VS and the detected voltage value V is smaller than the boundary reference voltage value VS, the sensor adjustment motor 8 is instructed to move to the swing side 2d by one step.
When the detected voltage value V is larger than the boundary reference voltage value VS, the sensor adjustment motor 8 is instructed to move to the upper step 2c and the paddy / brown rice discrimination sensor 6 moves to the upper step 1 step. It is moved and adjusted to the boundary position between paddy and brown rice. In this way, when the adjustment of the paddy / brown rice discrimination sensor 6 to the boundary position is completed, the uppermost 2
The moving distance from the c position to the boundary position between the paddy and brown rice is calculated by the detection data of the sensor position sensor 13. Then, the controller 12 outputs a movement command to the partition plate adjusting motor 8 to move and adjust the brown rice partition plate 4 to the partition position related to the boundary detection position of the paddy / brown rice discrimination sensor 6.
Then, the brown rice partition plate 4 partitions the brown rice at a position where the paddy does not mix, and the brown rice is taken out.

Next, the initial control of the paddy / brown rice discrimination sensor 6 and the brown rice partition plate 4 performed at the start of the sorting operation will be described. Paddy hopper (not shown) of a hulling device (not shown)
A grain sensor (not shown) provided in the paddle sensor detects the presence of paddy, and then the opening control of the paddy supply control valve (not shown) of the paddy hopper in the paddy hulling device is performed. (Not shown), it is determined that the work has started, and the following work start control is performed. Control unit 12
A command to move the paddy / brown rice discrimination sensor 6 and the brown rice partition plate 4 to the origin position is issued from the paddy pad, the paddy / brown rice discrimination sensor 6 moves to the most downward 2d position, and the brown rice partition plate 4 comes to the most upward 2c position. (The movement to this position may be moved at the end of the previous work.) Next, whether or not the hull / brown rice discrimination sensor 6 has the grain on the lowermost side 2d of the rocking sorting plate 2 (reduced grain that is partitioned by the grain partition plate 5 and returned to the grain hulling device and again grained) If there is a reduced grain, it is determined that the work is being resumed while it is temporarily stopped, and the boundary of the paddy / brown rice discrimination sensor 6 is detected in the same manner as described above, and the border position of the brown rice partition plate 4 is accordingly detected. Movement control is performed.

Further, the paddy / brown rice discrimination sensor 6 detects the presence or absence of reducing grains on the lowermost side 2d of the swinging sorting plate 2, and when there is no reducing grain, the swinging sorting plate 2 swings down. Control to determine that the initial work in which the grains are not distributed on the side 2d has started and to move the brown rice partition plate 4 to the most swaying upper side 2c position prior to the detection of the boundary position of the paddy / brown rice discrimination sensor 6 described above. Then, the hulled rice sorting operation progresses, and when the hull / brown rice discrimination sensor 6 comes to detect the reduced grain at the most downward 2d position,
It is determined that the swing sorting plate 2 is in a proper sorting state in which the grains are distributed over the entire width, and the light amount adjustment control of the paddy / brown rice discrimination sensor 6, the boundary position detection control, and the partition position of the brown rice partition plate 4 are performed. Movement control is performed.

The movement of the paddy / brown rice discrimination sensor 6 to the swaying side 2d and the movement of the brown rice partition plate 4 to the swaying side 2c are moved to the positions at the end of the work instead of this embodiment. It may be configured. When initial control of the paddy / brown rice discrimination sensor 6 and the brown rice partition plate 4 at the start of such work is performed, the paddy / brown rice discrimination sensor 6 waits at the origin position on the lowermost 2d of the swing and the brown rice partition plate. 4 is the most swaying upper side 2c
Since it is standing by at the origin position, the determination of whether it is the initial work or the restart work becomes faster due to the detection of the presence or absence of the reduced grains when the work is restarted, and it is distributed on the upper side 2c at the start of the initial work. Brown rice partition plate 4 when the grains are circulated to the swinging selection plate 2 again
The moving state of No. 1 has already been completed, and the paddy rice is not mixed with the paddy and taken out, and the processing at the start of work can be smoothly performed.

Next, with reference to FIG. 5, an abnormal check performed in connection with the movement control of the paddy / brown rice discrimination sensor 6 and the brown rice partition plate 4 at the start of work will be described.
Sensor origin position switch (lower side) 15a in the control unit 12
Is determined to be ON / OFF, and when it is OFF, the rotation of the sensor adjustment motor 8 moving to the swaying side 2d is continued for a certain period of time, and whether or not there is a rotation pulse input of the sensor adjustment motor 8 during this period. Is determined, and if there is a rotation pulse input, and if there is no rotation pulse input, the process proceeds to the next stroke, and it is determined whether the sensor origin position switch (swing side) 15a is ON or OFF, and OFF. In the case of, the alarm of the sensor origin position switch (swing side) 15a is notified,
When it is ON, the sensor origin position switch (lower side) 15a is regarded as normal and the process proceeds to the next step.

Next, the upper side 2c of the sensor adjusting motor 8
Is issued to the sensor adjustment motor 8 for a fixed time (tA), and during that period, it is determined whether or not there is a pulse input for upward rotation of the sensor adjustment motor 8. If not, the oscillation of the sensor adjustment motor 8 is detected. If the abnormality of the upper rotation is notified, and if it is present, it is determined that the upper rotation of the sensor adjustment motor 8 is normal, and the process proceeds to the next step. After the command for the upward swing rotation of the sensor adjustment motor 8, it is determined whether the sensor origin position switch (upward swing) 15b is ON or OFF. If the sensor origin position switch (upward) 15b is OFF, the sensor origin position switch (upward) 15b is determined to be normal, and the process proceeds to the next step. Then, the upward swinging rotation of the sensor adjustment motor 8 is kept for a fixed time (tB, where tB ≧ t.
A) ON output is made, and then it is determined whether or not there is a pulse input for upward swinging rotation of the sensor adjustment motor 8, and when there is no pulse notification of abnormality of upward swinging rotation of the sensor adjustment motor 8, If yes, it is regarded as normal and the process proceeds to the next step. Next, after completion of the upward swing rotation for the fixed time (tB), the sensor origin position switch (upward swing) 15b is turned on.
When it is determined to be OFF, the sensor origin position switch (upward) 15b is informed of an abnormality when it is OFF, and when it is ON, it is regarded as normal and the check control is terminated.

The partition plate adjusting motor 11 is also controlled in the same manner as described above, and the partition plate adjusting motor 11 swings upward and downward, and swings down and moves, and the partition plate origin position switch (upward). 16a, partition plate origin position switch (lower side) 16b
The presence or absence of abnormalities is checked.

[0020]

As described above, according to the present invention, the grain / brown rice discrimination sensor 6 which moves from the rocking side 2a to the rocking side 2d of the rocking / sorting plate 2 detects the boundary area of the paddy / brown rice to detect the brown rice. While performing the adjustment control related to the partition plate 4,
By effectively using this paddy / brown rice discrimination sensor 6, it is determined whether the work is initial work or resuming work at the start of hulling work, and the movement control of the paddy / brown rice discrimination sensor 6 and the brown rice partition plate 4 at the start of work is promptly performed. The work start process can be smoothed.

[Brief description of the drawings]

FIG. 1 is a perspective view

FIG. 2 is a block diagram.

FIG. 3 is a graph showing the detection values of the paddy / brown rice discrimination sensor.

FIG. 4 is a flowchart.

[Fig. 5] Flow chart

[Explanation of symbols]

 1 Swing sorting device 2 Swing sorting plate 2a Supply side 2b Discharge side 2c Swing upper side 2d Swing lower side 3 Supply hopper 4 Brown rice partition plate 5 Paddy partition plate 6 Paddy / brown rice discrimination sensor 7 Sensor moving means 8 Sensor adjustment motor 9 sensor guide bar 10 partition plate moving means 11 partition plate adjusting motor 12 control unit 13 sensor position sensor 14 partition plate position sensor 15a sensor origin position switch (swing side) 15b sensor origin position switch (swing side) 16a partition plate Origin position switch (upward) 16b Partition plate origin position switch (downward)

Claims (1)

[Claims] 1. A hulling device for hulling, and a horizontal slanting vertical reciprocal swing while flowing mixed rice from a high-level supply side 2a in the vertical direction of a rocking sorting plate 2 to a low-side discharge side 2b. And a swinging sorting device that sorts brown rice on the upper side 2c of the high side in the lateral direction, rice on the lower side 2d of the lower side, and the unsorted mixed rice in the middle of these with a nonuniform distribution distribution. A paddy / brown rice discrimination sensor 6 which is arranged on the discharge side 2b of the rocking / sorting plate 2 and is capable of reciprocating between a horizontal brown rice and a paddy distribution basin,
A brown rice partition plate 4 that can be moved laterally to the downflow discharge portion of the sorted grains on the discharge side 2b of the swing sorting plate 2 and the paddy / brown rice discrimination sensor 6 are moved in the horizontal direction of the swing sorting plate 2. A sensor moving unit for adjusting, a partition plate control unit for moving and adjusting the brown rice partition plate 4 in connection with the detection of the boundary position between the brown rice and the mixed rice by the paddy / brown rice discrimination sensor 6, the hulling device and the swinging motion. A sensor which is driven in connection with the work start detection or the work end detection of the sorting plate 2 and which moves the paddy / brown rice discrimination sensor 6 to the most oscillating lower side 2d position and the brown rice partition plate 4 to the most oscillating upper side 2c. A control device for a rocking / sorting device comprising a brown rice partition plate movement control means.