JPH1015497A - Brown rice partition plate control device of rocking sorting device - Google Patents

Abstract

(57) [Abstract] [Problem] To speed up control of brown rice partition plate of a swing sorting device. A swing sorting operation is started, and a swing sorting plate (1) is provided.
When the grains are distributed over the entire width of No. 5, the rice / brown rice discrimination sensor 30
Detects the grain data while moving a long distance each time, and when a predetermined total number of grains is reached, calculates a discrimination threshold value of paddy / brown rice by a predetermined formula. Next, the paddy / brown rice discrimination sensor 30 detects data while moving a short distance each time, and compares the measured number of grains of the paddy voltage value in a predetermined time with the control reference value to determine the boundary of the paddy / brown rice. Detect the position. When the boundary position is detected, the partition position of the brown rice partition plate 4 is calculated, and the brown rice partition plate 18 moves to the partition position. [Effect] The calculation of the reference value for discriminating between rice and brown rice performed at the start of work can be performed in a short time, and control of the brown rice partition plate can be started quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in brown rice partition plate control of a swing sorting apparatus.

[0002]

2. Description of the Related Art A brown rice partition plate of a swing sorting device is provided with a brown rice partition plate for adjusting the reciprocating movement in the horizontal direction on a vertical discharge side of the swing sorting plate. While moving the sensor, data is detected at predetermined time intervals to set a reference value for discriminating between rice and brown rice, and then the grain / distribution state of the rocking sorting plate is detected by the rice / brown rice discrimination sensor, and brown rice is detected. In some cases, the partition plate is automatically adjusted to the partition position.

[0003]

In the above-mentioned conventional apparatus, the step of setting a reference value for discriminating rice and brown rice at the start of work, and the step of controlling the rice and brown rice at the time of controlling the brown rice partition plate performed after setting the discrimination reference value. Since the movement distance of the brown rice discriminating sensor per operation is the same and the distance is relatively short, there is a problem that it takes a long time from the start of the operation to the start of the control of the brown rice partition plate.

Accordingly, the present invention relates to a paddy / brown rice discrimination sensor for setting a reference value for discriminating between paddy and brown rice at the start of work.
By increasing the moving distance per turn, the swing sorting plate can be moved from the swinging upper side to the lowering side quickly, and the control at the start of work can be completed in a short time, and the brown rice partitioning plate can be controlled quickly. Is about to get started.

[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 brown rice partition plate 18 which is disposed opposite to the vertical discharge side of the swing sorting plate 15 and can adjust the reciprocating movement in the horizontal direction, and a partition plate movement adjusting device which moves and adjusts the brown rice partition plate 18. A rocking / sorting device having means 28; a rice / brown rice discriminating sensor 30 provided on the discharge side of the rocking / sorting plate 15 and capable of adjusting the lateral movement and detecting a boundary position between the rice and brown rice; Work initial reference value setting means to be executed at the start of work for detecting data at predetermined time intervals while moving the brown rice discrimination sensor 30 and setting a reference value for discriminating between rice and brown rice, and the work initial reference value setting means Rice discrimination sensor 30 which is executed after setting of the reference value for discriminating between rice and brown rice
The brown rice partition plate control means for moving the brown rice partition plate 18 to a position related to the rice paddle / brown rice boundary detection position, and the moving distance per one time of the rice / brown rice discrimination sensor 30 in the work initial reference value setting means. This is a configuration of a brown rice partition plate control device of an oscillating sorting device, which comprises a sensor travel distance correction unit that makes the rice / brown rice discrimination sensor 30 longer than a single travel distance in the brown rice partition plate control unit.

[0006]

[Operation] When the hulling sorting operation is started and the grains are distributed from the rocking side to the rocking side of the rocking sorter plate 15, the rice / brown rice discrimination sensor 30 moves a long distance for each time, and the grain data is removed. When a predetermined total number of grains is detected, a paddy reference voltage value is calculated from the average value of the predetermined number of grains on the high side of the detected voltage value, and the average of the predetermined number of grains on the low side is detected. The brown rice reference voltage value is calculated from the value, and then the discrimination threshold value of the rice / brown rice is calculated by a predetermined formula.

[0007] Next, the process shifts to brown rice partition plate control based on the detection of the boundary between the rice and brown rice by the rice / brown rice discrimination sensor 30, and the rice / brown rice discrimination sensor 30 moves the data once a normal short distance. Is detected, and the number of detected grains of the paddy voltage value at a predetermined time is compared with the control reference value. When the number of detected grains of the paddy is large (or small), the rice / brown rice discrimination sensor 30 is swung upward 15c (or swung down). The boundary detection operation is continued while moving a normal short distance to 15d), and the position where the number of detected rice grains falls within the range of the control reference value is set as the boundary detection position of rice / brown rice.

Next, the partition position of the brown rice partition plate 4 is calculated based on the detection position of the boundary between rice and brown rice, and the brown rice partition plate 18 is moved to the partition position.

[0009]

As described above, according to the present invention, the moving distance per one time of the rice / brown rice discrimination sensor 30 in the brown rice partition plate control is set to a long distance at the start of the work for calculating the rice / brown rice discrimination threshold value. Can quickly detect data of a predetermined number of grains, can calculate the criteria for discriminating between rice and brown rice in a short time, can start brown rice partition plate control quickly, and At the time of controlling the brown rice partition plate 18, the detection of the boundary position between the rice and the brown rice becomes accurate, and the accuracy of the brown rice partition plate control can be improved.

[0010]

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

The rice hulling unit 1 comprises a rice hopper 6, a hulling roll 7,
7 comprises a hulling room 8 and the like. The rice-slide selection unit 2 includes a rice-slice selection box 9, a rice-slice selection path 10 slanted in the rice-slice selection box 9, a pity trough 11, and a rice-strip trough 12. , A suction fan 13, a dust discharge tube 14, and the like. Next, the swing sorting device 3 will be described.

The plate surfaces of the swing sorting plates 15, 15,... Are formed with sorting unevenness, and one side in the vertical direction is a high supply side 15.
a, the other side opposite thereto is the lower discharge side 15b, and one side in the horizontal direction orthogonal to the vertical direction is the upper side 15c,
The opposite side is set as a lower swinging side 15d, and the swing sorting plate 15
In both the vertical and horizontal directions,
The swing selection plate 15 is configured to be reciprocally swung up and down in the horizontal direction by a swing arm and a swing device.

Mixed rice is supplied to the supply port on the supply side 15a of the oscillating sorting plate 15 via a distribution supply gutter 16 and a distribution case 17. The mixed rice supplied to the oscillating sorting plate 15 has a small brown rice with a high specific gravity due to the size of the granules, the specific gravity, the coefficient of friction, and the like. Rice with a large specific gravity
Unevenly distributed on the lower side 15d, and unseparated mixed rice of paddy / brown rice is distributed in the middle, and these grains are
The rice is separated and taken out by a brown rice partition plate 18 and a paddy partition plate 19 provided to face the discharge side 15b of the swing sorting plate 15.

The extracted brown rice is extracted outside 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 rice is supplied to the rocking sorting device 3 via the falling rice receiving trough 12, the mixed rice fryer 4, the mixed rice hopper 24, the distribution supply gutter 16 and the distribution case 17, and is re-sorted. Further, the paddy is configured such that the paddy is returned to the paddy unit 1 through the paddy discharge gutter 25, the paddy channel 26, and the paddy mill 27, and is padded again.

The brown rice partition plate 18 is pivoted upward from the intermediate portion in the horizontal direction of the pivoting sorting plate 15 further upward than the end portion 15c.
c can be adjusted and moved.
A switching plate 18a that pivots in the upward and downward directions in the lower part of
18b are attached, and the switching plates 18a, 18
The b is rotated by a stopper (not shown), and when the brown rice partition plate 18 moves to the uppermost swinging position, the switching plate 18b closes the downflow opening of the brown rice extraction gutter 20 and the swinging sorting plate 15 from the swinging upper side. The flowed grain is guided to the mixed rice channel 23 side,
When the brown rice partition plate 18 moves to the partition position shown in FIG. 1, the grains partitioned on the upper side of the brown rice partition plate 18 are removed from the brown rice extraction gutter 2.
This is a configuration for guiding to the 0 outlet.

A brown rice switching valve 37 is provided at the downflow opening of the brown rice discharge gutter 20 to switch the flow of the grains to the brown rice flow path 21 so as to switch to an in-machine circulation state or an external machine removal state. The switching may be performed by the forward / reverse rotation of the valve motor 38. The mixed rice flow path 23 is provided with a mixed rice switching valve 39 for switching the taken-out grains to an in-machine circulating state or a returning state to the hulling unit 1, and forward / reverse rotation of the mixed rice switching valve motor 40. Thereby, the mixed rice switching valve 39 is switched.

The brown rice partition plate 18 can be reciprocated from the swinging side 15c to the swinging side 15d by the partitioning plate movement adjusting means 28. When the partitioning plate adjusting motor 29 is rotated in the normal or reverse direction, the swinging side 15c or The movement is adjusted to the swinging side 15d. Reference numeral 33 denotes a partition plate origin switch (upward) for detecting the movement of the brown rice partition plate 18 to the uppermost position.
Is a partition plate origin switch (lowering side) for detecting the movement of the brown rice partition plate 18 to the lowest swinging side.

Above the discharge side 15b of the swing sorting plate 15,
A rice / brown rice discrimination sensor 30 is provided. The rice / brown rice discrimination sensor 30 is supported movably in the horizontal direction by a sensor moving means 31 composed of a screw bar, and reciprocates in the horizontal direction by rotating the sensor adjusting motor 32 forward and reverse. It is a configuration to do. Reference numeral 35 denotes a sensor origin switch (upward) for detecting the movement of the paddy / brown rice discrimination sensor 30 to the uppermost rocking side 15c, and 36 denotes the movement of the paddy / brown rice discrimination sensor 30 to the lowermost rocking side 15d. Sensor origin switch (falling side) for detection.

The rice / brown rice discrimination sensor 30 has the following configuration in this embodiment. The light emitting unit irradiates the kernel with electromagnetic waves in a moisture absorption wavelength band and a reference wavelength band not absorbed by moisture, and receives reflected light (or transmitted light) from the kernel with an optical filter unit. The light is received by the light receiving section (for the water absorption wavelength band) via the section, and is converted into a large or small voltage value depending on the amount of light received by the light receiving section.
It is sent to the control unit 12 in the PU. The reference wavelength band reflected by the optical filter unit is sent to the light receiving unit (for the reference wavelength band), converted into a voltage value, and sent 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 be determined as rice or brown rice. Note that the detection wavelength band is not limited to the wavelength band.

A control unit 41 having a built-in CPU includes a paddy / brown rice discrimination sensor 30, a partition plate origin switch (upward) 3
3. Partition plate origin switch (swinging side) 34, sensor origin switch (swinging side) 35, sensor origin switch (swinging side)
36, a reduced grain sensor 43, a load current sensor 44 for detecting a load current value of the main motor 42, and an operation switch 45
Are connected via an input interface.

The control unit 41 also includes an output interface (not shown), a drive circuit, and a partition plate adjusting motor 29, a sensor adjusting motor 32, and a brown rice switching valve motor 3.
8. The mixed rice switching valve motor 40 and the main motor 42 are connected to each other. Next, control contents of the control unit 41 will be described. Based on FIG. 4, the rice / brown rice discrimination sensor 30 at the start of the operation
Of rice / brown rice boundary detection control will be described.

When this control is started, it is determined whether or not kernels are distributed from the upper side to the lower side of the swinging sorting plate 15. This determination is made, for example, as follows. Only the brown rice is normally distributed in a state where the grain is distributed over the entire width of the plate surface at the position where the rice / brown rice discrimination sensor 30 is moved to the swinging origin position (a predetermined distance from the uppermost swinging position to the lower side). From the position) to the swinging side to detect the distribution state, and detect the rice detection voltage value, the brown rice detection voltage value or the plate surface detection voltage value (the voltage value is significantly higher than the voltage values of the rice and brown rice.)
Alternatively, it is determined whether or not the grains are distributed over the entire width of the plate surface, based on whether or not a predetermined time has elapsed since the start of the hulling operation.

When the grains are spread on the plate surface, a command to move the rice to the lowering side is issued to the paddy / brown rice discriminating sensor 30 (located at the above-mentioned initial position of the upper side of the rocking). Is a long distance, that is, the moving amount at the time of controlling the brown rice partition plate described later is d.
Then, after moving the moving distance of a × d (where a> 1) at predetermined time intervals, the operation is stopped, and grain data is detected.

Next, the presence or absence of an interrupt input for grain detection is determined. If there is an interrupt input, the detected data is subjected to A / D conversion processing, and based on a predetermined criterion, either the paddy data or the brown rice data.
Is determined. If it is not paddy data, it is stored as brown rice data at a predetermined address in the storage device, and then the brown rice counter increments the brown rice data by +1.
In the case of the paddy data, the paddy data is stored and stored at a predetermined address as the paddy data, and then the paddy counter adds up the paddy data by +1.

Next, it is determined whether or not the total number of detected grains has reached a certain value. If the total number of grains has reached a certain value, it is determined whether or not the number of rice grains is equal to or more than a certain value. With the above, the discrimination voltage value of the rice / brown rice is calculated. That is, when the total number of detected grains reaches a predetermined number of grains (for example, 400 grains), the average value of the predetermined number of grains (for example, 20 grains) on the higher side of the detected voltage value is calculated and used as a rice seed reference voltage value; Then, the average value of the predetermined number of grains on the lower side (for example, 20 grains) is calculated and used as the brown rice reference voltage value, and then the discrimination threshold value for discriminating between rice and brown rice is calculated using a predetermined formula.

Next, the paddy / brown rice discrimination sensor 30
The processing shifts to brown rice partition plate control based on the detection of the boundary position of brown rice. The movement distance (a
A movement command for a normal distance (d, for example, about 4 millimeters) shorter than xd) is issued, and data is detected. Next, the number of grains of the paddy voltage value within a predetermined time is measured,
The measured number of grains is compared with the control reference value, and if the number of detected grains is large (or small), the rice / brown rice discrimination sensor 30
Boundary detection is continued while moving the normal distance (d) to the upper side 15c (or the lower side 15d), and the position where the number of detected rice grains is within the range of the control reference value is detected as the boundary between the rice and brown rice. Position. Next, the partition position of the brown rice partition plate 4 is calculated based on the boundary detection position of the paddy / brown rice, and the brown rice partition plate 1 is calculated.
8 is issued, the brown rice partition plate 18 moves to the partition position.

In this embodiment, the detection of the grain data while moving the rice / brown rice discrimination sensor 30 for a predetermined long distance is the period until the calculation of the rice / brown rice discrimination reference value. However, this may be extended until the boundary position is detected by the rice / brown rice discrimination sensor 30 in the brown rice partition plate control. In the control of the brown rice partitioning plate of the rocking sorter, the rice mixing ratio of brown rice must be set to a partition position of 0.3% or less due to market demands. It is necessary to set the moving distance of the discrimination sensor 30 at one time to 1 cm or less. Then, about 1 / 最 of the distance from the uppermost rocking position to the lowermost rocking position of the rocking sorting plate 15.
Assuming that it is normal to perform the work by moving the brown rice partition plate 18 at the location 2 and to set the brown rice partition plate 1 from the start of the operation.
There is a problem that the time required to move to the partition position 8 becomes longer.

However, in this embodiment, the moving distance per one time of the paddy / brown rice discrimination sensor 30 in the control of the brown rice partition plate is set to be a long distance at the start of the work. The setting of the value can be performed in a short time, the brown rice partition plate control can be started quickly, and the brown rice partition plate 18 can be quickly moved to the partition position.

[Brief description of the drawings]

FIG. 1 is an overall cut side view.

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

FIG. 3 is a block diagram.

FIG. 4 is a flowchart.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rice hulling part, 2 ... Rice sliding rice-style selection part, 3 ... Swing sorter, 4
... Mixed rice fryer, 5 ... Brown rice fryer, 6 ... Rice hopper, 7 ...
Rice hulling roll, 8 ... Rice hulling room, 9: Rice husk rice selection box, 10 ... Rice husk rice selection path, 11 ... Pity gutter, 12 ... Rice ridding gutter, 13 ...
Suction fan, 14 ... Dust cylinder, 15: Swing sorting plate, 16 ...
Distribution supply gutter, 17: distribution case, 18: brown rice partition plate, 1
9: paddy partition plate, 20: brown rice extraction gutter, 21: brown rice channel, 2
2 ... mixed rice extraction gutter, 23 ... mixed rice channel, 24 ... mixed rice hopper, 25 ... paddy extraction gutter, 26 ... paddy channel, 27 ... paddying machine, 28 ... partition plate movement adjusting means, 29 ... partition Board adjustment mode
, 30 ... Rice / brown rice discrimination sensor, 31 ... Sensor moving means, 32 ... Sensor adjustment motor, 33 ... Partition plate origin switch (upward swing), 34 ... Partition plate origin switch (downward swing),
35: Sensor origin switch (upward swing), 36: Sensor origin switch (downward swing), 37 ... Brown rice switching valve, 38 ... Brown rice switching valve motor, 39 ... Mixed rice switching valve, 40 ... Mixed rice switching valve -41, 41 ... Control unit, 42 ... Main motor, 43 ... Reduced grain sensor, 44 ... Load current sensor, 45 ... Operation switch, 46 ... Sensor movement sensor

Claims (1)

[Claims] 1. A brown rice partition plate 1 which is arranged opposite to a vertical discharge side of a swing sorting plate 15 and can be adjusted to reciprocate in a horizontal direction.
8, and a rocking sorting device having a partitioning plate movement adjusting means 28 for moving and adjusting the brown rice partitioning plate 18; Rice / brown rice discrimination sensor 3 that detects the boundary position of brown rice
0, a work initial reference value setting means to be executed at the start of work for detecting data at predetermined time intervals and setting a reference value for discriminating between rice and brown rice while moving the rice / brown rice discrimination sensor 30; Brown rice partition plate control for moving the brown rice partition plate 18 to a position related to the rice / brown rice boundary detection position of the rice / brown rice discrimination sensor 30 which is executed after the setting of the reference value of rice / brown rice by the initial reference value setting means. Means, and a sensor for making the moving distance per one time of the rice / brown rice discrimination sensor 30 in the work initial reference value setting means longer than the moving distance per one time of the rice / brown rice discrimination sensor 30 in the brown rice partition plate control means. A moving-distance correcting means, and a brown rice partition plate control device of the swing sorting device.