JP2002143776A - Controller for brown rice partition panel of shaking separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the structure of the brown rice partition panel of a shaking separator and the contents of control and to reduce costs. SOLUTION: When the control of the partition position of the brown rice partition panel 18 is started, a timer is set, the measurement of a standard detection time is started, and the detection of distributed grains by a paddy- brown rice discrimination sensor 30 is started. During the standard detection time, when an interruption signal which detected paddy-brown rice is input from the sensor 30 to a control part 41, a detected voltage is compared with a standard paddy voltage to judge whether grains are paddy or not. When paddy is detected, +1 is added to a paddy detection counter. When the standard detection time is finished, the partition position of the partition panel 18 is determined from the number of detected grains of the paddy detection counter and a predetermined standard paddy distribution graph, and the partition panel 18 is moved to the partition position. A means for moving the sensor is obviated, the structure and the contents of control are simplified, and costs can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brown rice partition plate control device for a swing sorting device.

[0002]

2. Description of the Related Art A conventional apparatus is provided with a paddy / brown rice discriminating sensor which reciprocates in a horizontal direction above a mixed rice distribution area on an oscillating sorting plate, and scans the paddy / brown rice discriminating sensor to determine the distribution state of grains. Detecting, for example, the falling position of a predetermined number of rice grains in a predetermined time is a boundary position of the rice / brown rice, and a predetermined length swinging upper position from this boundary position is determined as a partition position of the brown rice partition plate,
It controls the movement of the brown rice partition plate to the partition position.

[0003]

Problems to be solved by the present invention
Since the grain distribution is detected while reciprocating the brown rice discriminating sensor in the horizontal direction, a sensor moving motor and a moving means for moving the rice / brown rice discriminating sensor are required, and the configuration and control contents become complicated, and cost increases. It was a factor.

Therefore, in the present invention, the flow state of the paddy / brown rice is detected by a paddy / brown rice discriminating sensor fixedly provided at a predetermined position on the rocking side of the rocking sorting plate, and the detected value is compared with the plate surface. Based on the reference grain distribution graph created based on the experimental data, the grain distribution over the entire width in the horizontal direction is estimated to estimate the grain distribution and determine the partitioning position of the brown rice partition plate 18 to simplify the configuration and control contents. And cost reduction.

[0005]

Means for Solving the Problems The technical means of the present invention for solving such a technical problem includes an oscillating sorting plate 15 for separating and sorting paddy and brown rice, and an oscillating sorting plate 15 for separating and sorting. A brown rice partition plate 18 that can move in the horizontal direction to partition the brown rice, a paddy / brown rice discriminating sensor 30 that is fixedly provided at a position 15 d on the discharge side 15 b of the rocking sorter plate 15 on the discharge side 15 b, Partition position determination for estimating the distribution state of the grains based on the detection value of the paddy / brown rice discrimination sensor 30 and the reference grain distribution graph based on the experimental data in the overall width of the plate surface to determine the partition position of the brown rice partition plate 18 Means, and brown rice partition plate control means for moving the brown rice partition plate 18 to the partition position determined by the partition position determining means.

[0006]

According to the present invention, when the partitioning position control of the brown rice partitioning plate 18 is started, a timer is set to start measuring the reference detection time, and the detection by the rice / brown rice discrimination sensor 30 is started. During the reference detection time, when an interrupt signal for detecting rice / brown rice is input from the rice / brown rice discrimination sensor 30 to the control unit 41, the detected voltage value is compared with the reference rice voltage value to determine whether or not the rice is brown. In the case of paddy detection, +1 is added to the paddy detection counter.

[0007] When the reference detection time is over, the partition position of the brown rice partition plate 18 is determined from the detected rice grain count of the rice detection counter and the reference rice distribution graph determined in advance by experimental data. Is operated to move the brown rice partition plate 18 to the partition position.

As described above, according to the present invention, the reference grain based on the detection value of the paddy / brown rice discrimination sensor 30 provided at a predetermined position on the rocking side 15d of the rocking sorting plate 15 in a fixed state and the experimental data. Since the distribution position of the brown rice partition plate 18 is determined by estimating the distribution state of the grain on the plate surface using the particle distribution graph, there is no need to move the sensor, and the configuration and control contents are simplified and the cost is reduced. Can be.

[Detailed Description of the Invention]

[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 FIGS. The hulling sorting machine is composed of a hulling unit 1, a sifted rice wind sifting unit that air-selects smashed rice, a rocking sifting unit that separates and sorts mixed rice after the air selection into paddy and brown rice, and a mixed rice fry Machine 4, brown rice fryer 5, etc.

The rice hulling unit 1 comprises a rice hopper 6, a hulling roll 7,
7 comprises a rice hulling room 8 and the like, and the rice hulling rice style selection unit 2 comprises a rice hulling rice style selection box 9, a rice hulling rice style selection path 10, a pity trough 1
1, a sliding rice receiving gutter 12, a suction fan 13, a dust discharge tube 14, and the like. FIG. 2 shows a well-known configuration for opening and closing the roll gap of the hulling rolls 7, 7 by rotating the roll gap adjusting motor 46 forward / reversely so that the hulling roll is passed through a roll gap adjusting means 47. The roll gap of 7, 7 is adjusted to open and close.

Next, the swing sorting section 3 will be described. .. Are formed on the plate surfaces of the swing sorting plates 15, 15,... So that one side in the vertical direction is a high supply side 15a, the other side is a low discharge side 15b, and one side in the horizontal direction is a high swing side. The upper and lower sides 15c and 15d are lower and lower sides 15d, respectively.
Both directions are inclined, and the swing sorting plate 15 is reciprocated up and down in the horizontal direction by a swing device.

The mixed rice dropped and sorted into the sloping rice receiving trough 12 is mixed rice frying machine 4, mixed rice hopper 24, distribution supply gutter 1
6 and the distribution case 17, and are supplied to the supply side 15 a of the swinging sorting plate 15. The mixed rice supplied to the oscillating sorting plate 15 is sorted according to the size of granules, the size of specific gravity, the size of friction coefficient, and the like. The paddy having a large specific gravity is distributed in a drifting direction on the lower side 15d, and a mixed rice of unmixed rice and brown rice which is not separated is distributed in the middle portion and sorted. The grains thus sorted are separated and taken out by a brown rice partitioning plate 18 and a paddy partitioning plate 19 provided opposite the discharge side 15b of the swinging sorting plate 15.

The extracted brown rice is taken out of the machine via 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 pad. Oscillating sorting plate 1 via rice receiving trough 12, mixed rice frying machine 4, mixed rice hopper 24, distribution supply gutter 16 and distribution case 17
5 and re-sorted. In addition, paddy is paddy take-out gutter 25,
The structure is such that the hulling is returned to the hulling unit 1 via the hulling channel 26 and the hulling machine 27, and the hulling is performed again.

The brown rice partition plate 18 is configured to be movable in the horizontal direction by a partition plate movement adjusting means 28 composed of a screw rod disposed opposite to the discharge side 15b of the swing sorting plate 15, thereby adjusting the partition plate. The structure is such that the motor 29 is rotated forward and backward to reciprocate the brown rice partition plate 18 in the horizontal direction. Brown rice divider 1
A partition plate origin switch (swinging upper side) 33 and a partition plate originating switch (swinging side) 34 are provided at the uppermost swinging position and the lowermost swinging position 8 to stop the movement of the brown rice partitioning plate 18. Configuration. The paddy / brown rice discrimination sensor 30 is disposed in a fixed state at a position 15 d on the lower side of the discharge side 15 b of the swing sorting plate 15.

As shown in FIG. 4, a control unit 41 having a built-in CPU includes a rice / brown rice discrimination sensor 30, a partition plate origin switch (upward swinging) 33, and a partition plate origin switch (lower swinging side).
4, a load current sensor 44 for detecting a load current value of the main motor 42, a oscillating clutch sensor 48 for detecting the on / off of an oscillating clutch for oscillating the oscillating selection plate 15, and a paddy supply control valve 4.
3, a paddy supply control valve opening sensor 49 for detecting the degree of opening and closing, a swing rotation sensor 52 for detecting the rotation speed of a swing pulley (not shown), and an operation switch 45 are connected.

The control section 41 is provided with an output interface (not shown), a drive circuit, a partition plate adjusting motor 29, a roll gap adjusting motor 46, a main motor 42, and a display section 50. Are connected. Next, control contents of the control unit 41 will be described.

(1) When the control is started, the presence / absence of ON / OFF input of the operation switch 45 is detected. When the operation switch 45 is ON, the initial gap setting control of the hulling rolls 7, 7 is executed. The initial gap setting control is executed, for example, as follows. First, the roll gap is adjusted, and when the detected load current value of the load current sensor 44 does not change, it is determined that the hulling rolls 7, 7 are in a non-contact state, and the opening adjustment is stopped. When the closing adjustment is performed and the load current sensor 44 detects an increase in the load current value, it is determined that the hulling rolls 7 and 7 are in slight contact, and the closing adjustment is stopped.
The roll gap is opened and adjusted for a predetermined time to adjust and set a predetermined initial gap (for example, 1 mm).

During the initial gap setting control of the hulling rolls 7, 7, the inverter sets the number of revolutions of the main motor 42 to be lower than that during the work operation. It may be configured to return. In this way, during the initial gap setting control of the roll gap, the noise at the time of fine contact between the hulling rolls 7, 7 is reduced,
Wear of the hulling rolls 7, 7 can be reduced.

Further, for example, the swing clutch sensor 4
When the drive of the swing sorting unit 3 is detected by the swing rotation sensor 8 or the swing rotation sensor 52, the initial gap setting control of the roll gap may be executed with the main motor 42 as the number of revolutions during normal operation. This prevents the breaker from dropping due to overload at the time of fine contact between the hulling rolls 7, 7.
The initial gap between the hulling rolls 7, 7 can be set smoothly while preventing the stop of the second.

(2) When the initial setting control of the roll gap is completed, the process proceeds to the control of opening and closing the roll gap based on the load current value. When shifting to this control, the process shifts to a work stabilization waiting process for a predetermined time (for example, 5 minutes). During that time, the opening and closing control of the roll gap is stopped, and the grind work is performed while the roll gap is fixed.

When the predetermined time is over, the opening of the paddy supply control valve 43 is detected by the paddy supply control valve opening sensor 49 and sent to the control unit 41. A corresponding reference load current value is calculated to determine a control reference value. Next, the detected load current value of the load current sensor 44 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 46 is opened for a predetermined time. Side (or closed side) and perform the relevant roll clearance control 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, the control command is not issued and the hulling operation is continued while maintaining the roll gap as it is.

(3) Next, control of the partitioning position of the brown rice partitioning plate 18 will be described with reference to FIGS. In this embodiment, the paddy / brown rice discrimination sensor 30 is fixedly arranged at a predetermined position on the swinging side 15d of the swinging selection plate 15, and the number of paddy grains per unit time (or the number)
Based on the standard paddy distribution graph created based on the experimental data in the horizontal width of the plate surface, the distribution position of the grain in the horizontal direction is estimated to determine the partition position of the brown rice partition plate 18, and the brown rice partition plate 18 is intended to be controlled.

The conventional apparatus scans the paddy / brown rice discriminating sensor 30 over the mixed rice distribution area on the swinging sorting plate 15 and, for example, moves the paddy / brown rice boundary position from a position where a predetermined number of paddy grains flows in a predetermined time. Is detected, and the upper side 15c which is swung up a predetermined distance from the boundary position is determined as the partition position of the brown rice partition plate 18. For this reason, a sensor moving motor for moving the paddy / brown rice discrimination sensor 30 and a moving means for movably supporting the paddy / brown rice discrimination sensor 30 are required, which complicates the configuration and the control contents and causes a cost increase.

Therefore, in this embodiment, the swing sorting plate 15
The flow state of the rice / brown rice is detected by the rice / brown rice discriminating sensor 30 fixedly provided at a predetermined position on the lower side 15d of the rice, and the reference grain based on this detected value and the experimental data in the full width in the horizontal direction of the plate surface By estimating the distribution state of the grains by using the distribution graph and determining the partition position of the brown rice partition plate 18, the configuration and control contents are simplified and the cost is reduced.

The control will be described with reference to FIG. The timer is set to start measuring the reference detection time, and the detection is started by the paddy / brown rice discrimination sensor 30. During the reference detection time, it is determined whether or not an interrupt signal for detecting the rice / brown rice has been input from the rice / brown rice discrimination sensor 30 to the control unit 41. When the detection interrupt signal is input, the detection voltage value and the reference rice voltage are detected. The value is compared with the value to determine whether or not it is paddy, and in the case of paddy detection, +1 is added to the paddy detection counter.

When the reference detection time is over, the partitioning position of the brown rice partition plate 18 is determined from the number of detected rice grains of the rice detection counter and a predetermined rice distribution graph based on experimental data, and the rice detection counter is reset. Then, the timer for the reference detection time is reset. Then, a command to move the brown rice partition plate 18 to the determined partition position is issued, and the brown plate partition motor 18 is moved to the partition position by the partition plate adjusting motor 29.

A distribution graph of the number of rice grains in the horizontal direction at the standard inclination angle of the swing sorting plate 15 is prepared in advance based on experimental data as shown in FIG. Thus, for example, assuming that the number of detected rice grains is the number of B grains, the “distance from the distribution position B1 of the number of B grains in the graph to the boundary position A of the rice / brown rice” from the installation position of the rice / brown rice discrimination sensor 30 is assumed. The position deviated only to the swinging upper side 15c is determined as the boundary position of the unpolished rice and brown rice in the selected grain, and the partition position of the brown rice partition plate 18 is determined.

As described above, in this embodiment, the swing sorting plate 1
5 detects the flow state of the paddy with the paddy / brown rice discrimination sensor 30 provided in a fixed position at the predetermined position on the swinging side 15d, and from the detected contents and the distribution graph of the grain of the full width of the plate surface stored in advance. Since the partition position of the brown rice partition plate 18 is determined, no device or motor for moving the sensor is required,
The configuration and the contents of control can be simplified and the cost can be reduced.

In the case where the grain distribution changes from the standard grain distribution by adjusting the varieties of the grains, the level of the moisture value, and the gradual adjustment of the horizontal inclination angle of the oscillating sorter plate 15, the above-mentioned standard rice grain The partition position determined by the number distribution graph may be corrected to the swinging side 15c or the swinging side 15d by a predetermined formula to determine the partition position.

(4) Next, a method of starting the control of the partitioning position of the brown rice partitioning plate 18 will be described. In this embodiment, the partitioning position of the brown rice partitioning plate 18 is determined by the detection value of the rice / brown rice discriminating sensor 30 fixedly provided at the position 15d on the swinging side of the rocking sorting plate 15, and the rice / brown rice distinguishing sensor is determined. 30
Is used to detect the state of the grain distribution on the plate surface and determine the start time of the partition position control of the brown rice partition plate 18.

Immediately after the start of sorting, the spread of the grain distribution on the oscillating sorter plate 15 varies depending on the variety of the grain, the grain moisture, the lateral inclination angle of the oscillating sorter plate 15, and the like. The time required for the spread to stabilize is also different and the sorting is extremely unstable. Therefore, from the start of sorting, the brown rice partition plate 18
Can't fix the partitioning position and separate the brown rice. In this embodiment, the partitioning position of the brown rice partitioning plate 18 is determined based on the detection value of the paddy / brown rice discrimination sensor 30 which is arranged in a fixed state, and the grain of the plate surface is determined from the detection value of the rice / brown rice discrimination sensor 30. Estimating the spread of grains, brown rice partition plate 1
The start time of the partitioning position control of No. 8 is determined, and a stable partitioning plate control in which unhulled rice is not mixed is attempted.

The control will be described with reference to FIG. When this control is started, a timer is set to start measuring a reference detection time, and detection is started by the paddy / brown rice discrimination sensor 30. Then, during the reference detection time, the interrupt signal indicating that the paddy and brown rice are detected from the paddy / brown rice discrimination sensor 30 is output from the control unit 41.
It is determined whether or not it has been input to, if there is an interrupt signal input of paddy and brown rice, the detection voltage value is compared with the reference grain voltage value to determine whether or not the paddy and brown rice, the rice and brown rice In the case of detection, +1 is added to the grain detection counter.

When the reference detection time is over, it is determined whether or not the number of grains detected by the grain detection counter is equal to or greater than the set number. If the number is equal to or greater than the set number, brown rice partition plate control is started. Is determined, the kernel detection counter and the reference detection time timer are reset, and the partitioning position control of the brown rice partition plate 18 is started.

The start of the partitioning position control of the brown rice partition plate 18 is determined based on whether or not only the number of rice grains or the number of brown rice is equal to or more than the set number of grains instead of the total number of the number of rice grains and the number of brown rice grains. It may be configured. As described above, the brown rice partition plate 18
The use of the rice / brown rice discriminating sensor 30 for detecting the partitioning position of the rice to detect the spread of the grain on the plate surface and determining the start time of the partitioning position control of the brown rice partitioning plate 18 reduces the number of sensors. In spite of this, stable partition plate control can be performed.

If the start of brown rice partition plate control is determined based on the total value of the number of rice grains and the number of brown rice, or whether the number of brown rice grains has exceeded a set value, a re-sorting operation other than a normal sorting operation is performed. In the case of, even when the number of brown rice grains is extremely large relative to the number of rice grains, the distribution state of grains can be accurately determined,
The start time of the brown rice partition plate control can be accurately determined.

(5) Next, the end control of the brown rice partition plate control will be described with reference to FIG. In this embodiment, the partitioning position of the brown rice partitioning plate 18 is determined based on the detection value of the rice / brown rice discriminating sensor 30 fixedly provided at the position 15d on the swinging side of the swinging sorting plate 15, and the rice / brown rice discrimination is performed. Sensor 30
Is used to estimate the distribution area of the grain on the plate surface to determine the end time of the partitioning position control of the brown rice partitioning plate 18.

At the end of the operation, the moving speed of the plate-side grain to the swinging upper side 15c due to the decrease of the grain on the swing sorting plate 15 depends on the grain type, the grain moisture, and the lateral direction of the swing sorting plate 15. It varies depending on the inclination angle or the like. Therefore, after a certain period of time from the time when the hulling supply control valve of the hulling unit 1 is closed and the hulling operation is completed, the partitioning position of the brown rice partition plate 18 is moved from the working position to the end partitioning position to the swing-up 15c. Can not.
Therefore, in this embodiment, the spread of the plate grain near the end of the work is estimated using the paddy / brown rice discrimination sensor 30 which is arranged in a fixed state for determining the partition position of the brown rice partition plate 18, The time to move the brown rice partition plate 18 to the swinging side 15c, which is the partition position at the end, is determined, and the partition position of the brown rice partition plate 18 immediately before the end is controlled while preventing the mixing of unhulled rice into brown rice.

Next, the control contents will be described with reference to FIG. When this control is started, a timer is set to start measuring the reference detection time, and the paddy / brown rice discrimination sensor 30 starts detection. Then, during the reference detection time, it is determined whether or not the interruption detection signal of the rice from the rice / brown rice discrimination sensor 30 has been input to the control unit 41.
The detection voltage value is compared with the reference paddy voltage value to determine whether or not the paddy is a paddy. Thus, when the reference detection time is over, it is determined whether or not the number of detected rice grains of the rice detection counter is equal to or less than the set number of grains. Is determined, the paddy detection counter and the reference detection time timer are reset, and the brown rice partition plate 18 is moved to a predetermined position on the swinging side 15c.

It is to be noted that, instead of the above-mentioned number of rice grains, only the total value of the number of rice grains and the number of brown rice grains and the number of brown rice grains are detected, and the brown rice partition plate is determined based on whether or not the number of detected grains has become equal to or less than the set number of grains. The partitioning position control of No. 18 may be ended, and the partitioning position may be moved to the end-time partitioning position of the swinging side 15c.

As described above, the spread of grains is detected by using the paddy / brown rice discrimination sensor 30 for detecting the partition position of the brown rice partition plate 18, and the end time of the control of the partition position of the brown rice partition plate 18 is determined. Therefore, while the number of sensors is reduced, the moving time of the brown rice partition plate 18 from the partition position at the time of operation to the partition position at the end of work is optimized, and the brown rice partition plate 18 is prevented from being mixed with unpolished rice. Partition control can be performed.

[Brief description of the drawings]

FIG. 1 is an overall cut side view.

FIG. 2 is a cutaway side view of a main part.

FIG. 3 is a perspective view of a main part.

FIG. 4 is a block diagram.

FIG. 5 is a flowchart.

FIG. 6 is a graph showing the number of grains of paddy in a standard sorting state from the upper side to the lower side.

FIG. 7 is a flowchart.

FIG. 8 is a flowchart.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Hulling part 2 ... Sliding rice wind selection part 3 ... Swing sorting part 4 ... Mixed rice frying machine 5 ... Brown rice frying machine 6 ... Hull hopper 7 ... Hulling roll 8 ... Hulling room 9 ... Sliding down Rice-style selection box 10 ... Sliding rice-style selection path 11 ... Pity receiving trough 12 ... Sliding rice receiving 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 flow channel 22 ... Mixed rice extraction gutter 23 ... Mixed rice flow channel 24 ... Mixed rice hopper 25 ... Rice extraction gutter 26 ... Rough flow channel 27 ... Rice unmilling Machine 28 ... Partition plate movement adjusting means 29 ... Partition plate adjustment motor 30 ... Rice / brown rice discrimination sensor 31 ... Sensor movement means 32 ... Sensor adjustment motor 33 ... Partition plate origin switch (floating side) 34 ... Partition plate origin Switch (falling side) 41 ... Control unit 42 ... Main motor 43 ... Rice supply control valve 44 ... Load current sensor 5 ... operation switch 46 ... roll gap adjustment motor 47 ... roller gap adjusting means 48 ... swinging clutch sensor 49 ... rice supply regulation valve opening sensor 50 ... display unit 52 ... swinging rotation sensor

Claims (1)

[Claims] 1. A swing sorting plate 1 for separating and sorting rice and brown rice.
5, a horizontally movable brown rice partition plate 18 for separating the brown rice separated and sorted by the swing sorting plate 15, and a fixedly provided position 15d on a swinging side 15d on the discharge side 15b of the swing sorting plate 15. Paddy / brown rice discrimination sensor 30
A partitioning position for determining a partitioning position of the brown rice partitioning plate 18 by estimating a distribution state of grains by using a detection value of the paddy / brown rice discriminating sensor 30 and a reference kernel distribution graph based on experimental data in the entire width of the plate surface in the horizontal direction. A brown rice partition plate control device of an oscillating sorter, comprising: a determination unit; and a brown rice partition plate control unit that moves the brown rice partition plate 18 to the partition position determined by the partition position determination unit.