JPH08323295A - Brown rice discriminating plate adjusting apparatus for swinging sorting apparatus - Google Patents

Abstract

PURPOSE: To correct the adjustment position of brown rice discriminating plate based on a standard with a boundary detected position by a paddy-brown rice discriminating sensor while considering the taste of an operator and easily carry out the adjustment correspondingly to the taste in relation to the operation in the case when a manual adjustment operation by the operator is carried out during automatic adjustment of the brown rice discriminating plate. CONSTITUTION: When a swinging sorting plate 1 starts sorting, brown rice in mixed rice and paddies are deflected and distributed to a swinging upper side 1c and a swinging lower side 1d, respectively, while the mixed rice is moving from a supply side 1a to a discharge side 1b and unsorted mixed rice is sorted in the middle part while being deflectedly distributed. A paddy-brown rice discriminating sensor 2 is therefore moved reciprocally to detect the boundary position of the brown rice distributed area and mixed rich distributed area and, based on the detected result, the brown rice discriminating plate 5 is moved and adjusted. In the case when an operator manually adjusts a discriminating plate adjusting motor 8 during such an automatic operation at the discriminating position, the shift distance of the brown rice discriminating plate movement adjusting means is corrected and the automatic adjustment of the discriminating plate is carried out based on the corrected shift distance as a standard.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a brown rice partition plate adjusting device of a swing selecting device.

[0002]

2. Description of the Related Art An oscillating sorting plate for oscillating and sorting mixed rice is provided with a brown rice partition plate facing the discharge side thereof so as to be reciprocally movable from the swaying side to the swaying side. The discharge side of the plate is equipped with a paddy / brown rice discrimination sensor that discriminates between paddy and brown rice while moving back and forth from the rocking side to the rocking side, to detect the paddy / brown rice boundary position of the paddy / brown rice discrimination sensor. In association with,
There is a brown rice partition plate adjusting device that is a swing sorting device that moves and adjusts the brown rice partition plate.

[0003]

SUMMARY OF THE INVENTION In the prior art,
The paddy / brown rice discrimination sensor detects the boundary position between brown rice and mixed rice in the grains that are in the selected state, and based on this boundary detection position, the position shifted to the upper side for a predetermined distance is the adjustment position of the brown rice partition plate. As such, the shift distance was fixedly set.

However, in the actual work, if the operator prefers to further adjust to the upside and work with emphasis on the sorting accuracy, or conversely with this, focus on sorting efficiency. You may want to work. In view of the above, the present invention solves such a problem by responding to such a demand, while allowing the brown rice partition plate to be automatically adjusted while allowing the operator's taste to be automatically adjusted. It is what

[0005]

The present invention has taken the following technical means in order to solve the problems of the prior art. That is, according to the present invention, the rocking sorting plate 1 that sorts the mixed rice while rocking is arranged, and the rocking sorting plate 1 is disposed so as to face the discharge side, and the movement is adjusted from the rocking side to the rocking side. The unpolished rice partition plate 5, a partition plate adjusting motor 8 for moving and adjusting the unpolished rice partition plate 5 to the rocking side and rocking side, and from the rocking side to the rocking side on the discharge side of the rocking sorting plate 1. A paddy / brown rice discrimination sensor 2 that discriminates between paddy / brown rice while reciprocating between them, a sensor adjustment motor 4 that adjusts the paddy / brown rice discrimination sensor 2 to move up and down, and the paddy / brown rice. A brown rice partition plate movement adjusting means for moving and adjusting a position shifted upward by a predetermined distance from the paddy / brown rice boundary detection position of the brown rice discrimination sensor 2 as an automatic adjustment setting position of the brown rice partition plate 5, and the brown rice partition plate movement adjustment The automatic adjustment setting position of the brown rice partition plate 5 in the means is the sensor adjustment motor 4. Swing selection including a shift distance correcting unit that operates in association with the upward or downward swinging operation performed by the dynamic adjusting operation and that corrects the shift distance of the brown rice partition plate movement adjusting unit. This is the configuration of the brown rice partition plate adjusting device of the device.

[0006]

When the oscillating sorting plate 1 starts sorting, the mixed rice flows from the supply side 1a in the vertical direction to the discharge side 1b while being reciprocally oscillated up and down in the horizontal direction and the rice is shaken. Upper one
Unevenly distributed mixed rice is distributed to the c side, and unhulled rice is unevenly distributed to the swaying side 1d side. Then, the paddy / brown rice discrimination sensor 2 swings the sorting plate 1
While moving back and forth from the rocking side to the rocking side,
The boundary position between the brown rice distribution basin and the mixed rice distribution basin is detected while distinguishing whether or not the brown rice is present.

Next, based on the detection of the boundary position of the paddy / brown rice discrimination sensor 2, the position further shifted by a predetermined distance is determined as the adjustment position of the brown rice partition plate 5, and the brown rice partition plate 5 is moved and adjusted. . In this way, during the automatic operation at the partition position, the operator manually adjusts the partition plate adjusting motor 8 to perform the adjusting operation to the upside or downside. Then, in connection with this manual adjustment, the shift distance of the brown rice partition plate movement adjusting means is corrected, and thereafter, the brown rice partition plate 5 is automatically adjusted based on the corrected shift distance.

[0008]

Embodiments of the present invention shown in the drawings will be described below. FIG. 1 shows a known swing selection device. The supply side 1a on one side in the vertical direction of the swing selection plate 1 is set to a high position,
The discharge side 1b on the other side is inclined so as to be lower, the higher side on one side in the horizontal direction is the swinging side 1c, and the lower side on the other side is the swinging side 1d, which is closer to the supply side 1a in the vertical direction. The mixed rice is supplied from a supply port provided at a position closer to the rocking side 1c to select the rice.

The mixed rice fed to the swing sorting plate 1 is swung back and forth in the horizontal direction while being flowed from the supply side 1a in the vertical direction to the discharge side 1b, and is sorted. Heavy brown rice is unevenly distributed on the rocking side 1c side, and large, light-weight paddy is unevenly distributed on the rocking side 1d side, and unsorted mixed rice is distributed in the middle of these. Sorted while being distributed. Then, facing the discharge side 1b of the swing selection plate 1,
A brown rice partition plate 5 and a paddy partition plate 6 are provided movably from the rocking side 1c to the rocking side 1d, and these selected grains are taken out of the machine through a brown rice lifting machine (not shown). . In addition, on the side of this rocking / sorting device, a hulling part (not shown) consisting of a pair of hulling rolls, and a slidable rice wind selecting part (not shown) for wind-selecting sludge-free rice of the hulling part. ) Has been placed.

The paddy / brown rice discrimination sensor 2 is fitted and supported by a screw rod of the sensor moving means 3, and by rotating the sensor adjusting motor 4 in the forward and reverse directions, the discharge side 1 of the swing selection plate 1 is detected.
It is configured to reciprocate from the most swinging upper side 1c to the most swinging lower side 1d in b. The brown rice partition plate 5 is screw-fitted and supported by the screw rod of the partition plate moving means 7, and is similarly configured to be reciprocally movable by the partition plate adjusting motor 8 rotating in the forward and reverse directions.

The paddy / brown rice discrimination sensor 2 includes a light source for irradiating near-infrared light including a wavelength range absorbed by moisture, and a reflection of the near-infrared light irradiated on a single grain or a group of grains. The optical filter is configured to pass only a wavelength range of light that is absorbed by the moisture, and a photovoltaic element that converts the voltage into a large voltage and a small voltage according to the degree of the wavelength range that has passed through the optical filter. When the converted voltage of the electromotive force element is input to the control unit 9, the discrimination unit inside discriminates between paddy and brown rice based on the magnitude of the converted voltage value. The paddy / brown rice discrimination sensor 2 may include a light emitting element and a light receiving element, and the reflected light amount or the transmitted light amount of the grain may be converted to a voltage by the light receiving element to detect whether the grain is rice or brown rice. .

As shown in FIG. 2, the paddy / brown rice discrimination sensor 2, the paddy hopper of the paddy section, the full sensor 9, the paddy sensor 10 for detecting the absence of grains, and the brown rice partition plate 5 are most shaken. Brown rice partition plate most sway upper movement sensor 1 that detects upward movement
2, brown rice partition plate most swinging lower side movement sensor 13 that detects the most swinging lower side movement of the brown rice partition plate, paddy-sensor that detects the most swinging upper side movement of the brown rice partitioning sensor 2, most swinging upper side movement sensor 14, paddy
Sensor for detecting the most swaying lower side movement of the brown rice discrimination sensor 2. The most swaying lower side movement sensor 15, the clutch on / off detection sensor 16 and the paddy supply opening / closing sensor for detecting the opening / closing of the paddy supply control valve (not shown) of the paddy hull part. Reference numeral 18 is connected to each of the control units 11 with a built-in CPU via an input interface (not shown). Further, the sensor adjusting motor 4 and the partition plate adjusting motor are output from the control section 11 via the output interface.
A control command signal is output to the paddle 8, the swing clutch on / off motor 17, and the paddy supply adjusting motor 19 for opening and closing the paddy supply adjusting valve (not shown).

It should be noted that instead of the structure in which the grain / brown rice discrimination sensor 2 is moved from the upper side of the rocking side to the lower side of the rocking grain to detect the grain that is being sorted by the swinging sorting board 1, As a configuration in which the grain discharged from the discharge side 1b is received by a sample detection tool (not shown) capable of reciprocating between the position of the highest rocking side 1c and the position of the lowest rocking side 1d, and detected by the paddy / brown rice discrimination sensor Good.

Next, the control contents of the control unit 11 will be described. First, when the main motor (not shown) is driven, the rotating parts of the hulling / sorting machine are driven, and the full sensor 9 detects whether or not the hull hopper is being pulled into the hull hopper. Then, the paddy supply control valve is adjusted to open, the rocking clutch is engaged and the paddy sorting operation is started. Then, the light amount of the paddy / brown rice discrimination sensor 2 is adjusted, and the paddy and brown rice are adjusted to have a predetermined detection voltage. That is, when the swing sorting plate 1 enters a stable sorting state (grains are distributed over the entire width from the rocking side 1c to the rocking side 1d), the light amount adjustment control is started, and the control unit 11 sets the initial reference light amount adjustment voltage. Then, the paddy / brown rice discrimination sensor 2 starts to move from the most swaying upper side 1c to the most swaying lower side 1d, the grain voltage is read, and as shown in FIG. To the side, the detection voltage of brown rice, mixed rice, and paddy is detected and detected (there is a lot of water on the surface of brown rice,
The voltage difference is detected because the water content on the paddy surface is low. ), A comparison is made as to whether the brown rice voltage value on the swaying side and the paddy voltage value on the swaying side are within the predetermined reference voltage values. When the light amount is adjusted to the decreasing side or the increasing side and falls within the range of the reference voltage value, the light amount adjustment ends. Then, the voltage value at the boundary between the brown rice voltage value and the mixed rice voltage value in the voltage distribution chart of FIG. 4 is set as the boundary reference voltage value (horizontal dotted line in FIG. 4 (2)). When the light amount adjustment control is completed, the process shifts to the control of detecting the boundary position between the brown rice and the mixed rice on the brown rice partition plate 5 by the paddy / brown rice discrimination sensor 2.

Then, a movement command is issued to the uppermost sway of the paddy / brown rice discrimination sensor 2 to move, and the sensor swayest upper movement sensor 14 detects the movement of the paddy / brown rice discrimination sensor 2 to the uppermost sway and moves. Is completed. Then, a command to move the paddy / brown rice discrimination sensor 2 to the swaying side is issued and moved, and the detection voltage value V of the paddy / brown rice discrimination sensor 2 is sequentially read. Then, as shown in the flow chart of FIG. 4, when the detected voltage value V is compared with the boundary reference voltage value and the detected voltage value V is smaller than the boundary reference voltage value, the sensor adjustment motor 4 is further moved downward by one step. When the detected voltage value V is greater than the boundary reference voltage value, the sensor adjustment motor 4 is instructed to move upward by one step, and the paddy / brown rice is discriminated. The sensor 2 is moved up and down one step, and, in this way, is moved and adjusted to the boundary position between the brown rice and the mixed rice. In this way, when the movement adjustment of the paddy / brown rice discrimination sensor 2 to the boundary position is completed, the movement distance from the uppermost sway of the paddy / brown rice discrimination sensor 2 to the boundary position is, for example, that of the sensor adjustment motor 4. It is calculated from the normal and reverse rotation speeds. Then, the control unit 11 instructs the partition plate adjusting motor 8 to subtract the reference shift distance of the predetermined distance from the calculated sensor moving distance to calculate the moving distance of the brown rice partition plate 5, and to command the movement of the brown rice partition plate 5. Is issued and movement is adjusted. Then, brown rice partition plate 5
The brown rice is separated at a position where paddy is not mixed, and the brown rice is taken out. The reference shift distance of a predetermined distance for determining the moving position of the brown rice partition plate 5 from the boundary detection position of the paddy / brown rice discrimination sensor 2 is stored in the EEPROM. By adding the following contents to the adjustment control of the brown rice partition plate 5 described above, the brown rice partition plate control suitable for the operator can be performed. That is, after the partition position of the brown rice partition plate 5 is automatically adjusted and set, the partition plate adjustment motor 8 is manually adjusted further according to the operator's preference to move it to the upper side or the lower side by a predetermined distance. The work may be continued while making adjustments to improve the sorting accuracy and the sorting efficiency.

The lower half of FIG. 5 shows the control flow. In this case, the moving distance to the rocking side or the rocking side is detected by the forward / reverse rotation speed of the partition plate adjusting motor 8, and the reference shift distance of the predetermined distance stored in the EEPROM is: The boundary reference position of the paddy / brown rice discrimination sensor 2 is rewritten to a correction reference shift distance that takes into account the manual adjustment distance to the upside or downside of the operator. From this, the adjustment position of the brown rice partition plate 5 is determined. Thus, the brown rice partition plate can be controlled according to the operator's preference. Next, the work end control of the swing sorting device shown in FIG. 6 will be described.

During the hulling operation, the full sensor 9 and the paddy sensor 10 detect the presence of paddy, and when the full sensor 9 detects the presence of paddy, a paddy supply control valve (not shown) indicates the open control state. It is maintained and work is continued. When the paddy sensor 10 detects the absence of paddy, it is determined that the work is completed, the paddle supply control valve (not shown) is closed and the swing clutch on / off motor 17 is instructed to swing the clutch. The swing clutch is disengaged and the swing selection plate 1 stops swinging. Next, the partition plate adjustment motor 8 is instructed to move to the uppermost rocking position, the brown rice partition plate 5 moves to the uppermost shaking position, and the movement to the upper shaking position is detected by the brown rice partitioning plate uppermost moving sensor 12. When the movement is detected and the movement is completed, the rocking clutch is commanded to enter the rocking clutch, and all the grains discharged from the rocking sorting plate 1 are returned to the hulling portion (not shown) and hulled. When the detection value of the selection state of the paddy / brown rice discrimination sensor 2 becomes higher than the reference value, the brown rice partition plate 5 is moved from the uppermost position to the lower side for a predetermined distance to move the brown rice out of the partitioning machine. The normal work end process of taking out is executed.

In the conventional device, at the end of the work, a rice cutting sensor is provided in the mixed rice hopper of the rocking and sorting device, and the brown rice partition plate is moved to the uppermost position in relation to the detection of the rice cutting by the rice cutting sensor. There is a device for moving to the end of the work of the swing sorting device. However, in the conventional device, the supply of grains to the swing selection plate is stopped quickly, and moreover, since the brown rice partition plate is moved while swinging the swing selection plate, the number of grains to be selected decreases. The movement of the grain distribution to the upper side does not match the movement of the brown rice partition plate to the upper side, and the brown rice partition plate partitions the brown rice mixed with paddy, and the paddy rice mixed with the paddy rice taken out of the machine is mixed. There were dots.

However, in this embodiment, as described above, since the swinging of the swing selecting plate 1 is stopped and the brown rice partition plate 5 is moved to the upper side of the swing, the paddy rice is mixed with the grain. In addition, the partition plate adjusting motor 8 does not need to have a large capacity, and the drawbacks of the conventional device can be solved. In addition, as shown in the flow chart of FIG.
When the absence of paddy is detected, it is determined that the work is completed, and the brown rice partition plate 5 may be moved to the uppermost rocking side without stopping the rocking of the rocking sorting plate 1 while continuing the rocking. . In this embodiment, a hulling sensor 10 for determining the end of work is provided in a hulling section (not shown) which is a front stroke of the swing sorting device. Therefore, in the initial stage of the upward movement of the brown rice partition plate 5, the grains remaining in the slide-down rice wind selecting unit (not shown) and the conveying path (not shown) in the previous process are supplied to the swing selecting plate 1. The grain is continuously supplied, and the uneven movement of the grain to the upper side of the grain is delayed. During that time, the brown rice partition plate 5 can be moved to the uppermost side and the rice is mixed by the brown rice partition plate 5. There is little possibility of partitioning brown rice, and the drawbacks of conventional devices can be eliminated.

Next, FIG. 8 will be described. When arranging the movement adjusting means of the paddy / brown rice discrimination sensor 2 and the movement adjusting means of the brown rice partition plate 5 so as to face the discharge side 1d of the rocking sorting plate 1 of the rocking sorting device, the topmost swing sorting plate is arranged. It is arranged above the plate surface of No. 1. That is, the left and right machine frames 20, 2
At 0, both ends of the sensor moving screw rod 3a and the sensor moving guide rod 3b of the sensor moving means 3 are supported, and the sensor support 2
A screw portion of No. 1 is screwed into and supported by the sensor moving screw rod 3a, and a paddy / brown rice discrimination sensor 2 is attached to a sensor support body 21 so as to extend to the upper surface of the swing selection plate 1.
Then, the sensor adjustment motor 4 is attached to the end of the sensor moving screw rod 3a, and the sensor adjustment motor 4 is rotated normally or reversely to move the paddy / brown rice discrimination sensor 2 to the upper side or the upper side. It is a structure for movement adjustment.

Below the sensor moving screw rods 3a and the sensor moving guide rods 4b, similarly, partition plate moving screw rods 7a and partition plate moving guide rods 7b of the partition plate moving means 7 are installed and supported to support brown rice. The thread portion of the partition plate 5 is replaced with the partition plate moving screw rod 7a.
It is configured such that the brown rice partition plate 5 is moved to the upper side or the upper side by swinging the partition plate adjusting motor 8 in the normal direction or in the reverse direction.

As described above, the sensor moving means 3 for moving and adjusting the paddy / brown rice discrimination sensor 2 and the partition plate moving means 7 for moving and adjusting the brown rice partition plate 5 are used as the uppermost swing selection plate 1.
Since it is located above the plate surface of the rocking sorting plate 1, the grain discharged from the rocking sorting plate 1 is not hit and the dust is relatively small, so that the operation can be smoothed. It can be driven by a capacity motor, and the cost can be reduced. Further, a dust suction device (not shown) is provided on the plate surface of the swing selection plate 1.
By adding a structure for communicating with each other and absorbing dust, the operation can be further facilitated.

[0023]

As described above, according to the present invention, when a manual adjustment operation is performed by an operator during the automatic adjustment of the brown rice partition plate 5, the rice / brown rice discrimination sensor is associated with the manual adjustment operation. The adjustment position of the brown rice partition plate 5 based on the boundary detection position of 2 is corrected in consideration of the operator's preference, and automatic adjustment can be performed according to the operator's preference.

[Brief description of drawings]

FIG. 1 is a perspective view.

FIG. 2 is a block diagram.

FIG. 3 is a graph showing a distribution diagram of detected voltage values and a discrimination reference value.

[Fig. 4] Flow chart

[Fig. 5] Flow chart

FIG. 6 is a flowchart.

FIG. 7: Flow chart

FIG. 8 is a perspective view and a side view.

[Explanation of symbols]

 1 Swing Selection Plate 2 Paddy / Brown Rice Discrimination Sensor 3 Sensor Moving Means 3a Sensor Moving Screw Rod 3b Sensor Moving Guide Rod 4 Sensor Adjustment Motor 5 Brown Rice Partition Plate 6 Paddy Partition Plate 7 Partition Plate Moving Means 7a Partition Plate Moving Screw Rod 7b Partition plate movement guide bar 8 Partition plate adjustment motor 9 Full sensor 10 Paddy sensor 11 Control part 12 Brown rice partition plate most swinging upper movement sensor 13 Brown rice partition plate most swinging lower movement sensor 14 Sensor most swinging upper movement sensor 15 Sensor most oscillating lower side movement sensor 16 clutch on / off sensor 17 swinging clutch on / off motor 18 paddy feed valve adjusting motor 20 machine frame 21 sensor support

Claims (1)

[Claims] 1. An oscillating sorting plate 1 for sorting mixed rice while oscillating, and a oscillating sorting plate 1 which is disposed so as to face the discharge side of the oscillating sorting plate 1 and which is moved and adjusted from the upper side to the lower side. A brown rice partition plate 5, a partition plate adjustment motor 8 for moving and adjusting the brown rice partition plate 5 to the rocking side and rocking side, and between the rocking side and the rocking side on the discharge side of the swing selection plate 1. A paddy / brown rice discrimination sensor 2 that discriminates between paddy / brown rice while moving back and forth
A sensor adjustment motor 4 for moving and adjusting the brown rice discrimination sensor 2 to the upper side and the lower side, and a position shifted to the upper side by a predetermined distance from the paddy / brown rice boundary detection position of the paddy / brown rice discrimination sensor 2 The brown rice partition plate movement adjusting means for moving and adjusting as the automatic adjustment setting position of the partition plate 5, and the automatic adjustment setting position of the brown rice partition plate 5 in the brown rice partition plate movement adjusting means is shaken by the manual adjustment operation of the sensor adjustment motor 4. A brown rice partition plate of a rocking / sorting device, which is operated in association with an upward or downward swing adjustment operation, and which comprises shift distance correcting means for correcting the shift distance of the brown rice partition plate movement adjusting means. Adjustment device.