JPH1015406A - Roll gap controller for husking roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the excess closing adjustment of a roll gap controller. SOLUTION: The load current value of a main motor for driving the husking rolls is detected by a load current detecting sensor and the opening degree of a paddy control valve is detected by a paddy supply control valve potentiometer. The detected load current value and a control reference value are compared and the roll gap is so adjusted that the detected load current value is reset at the control reference value. The adjustment of the roll gap is suspended when the detected load current value is smaller than the control reference value and the increase of the opening degree of the paddy supply control valve and the decrease of the load current value are detected with respect to the previous measured value. The correction of the control reference value to regulate the detected valve opening of the paddy supply control valve and the detected load current of this time to the control reference value is then executed. As a result, the dealing with a change in the amt. of the grains to be supplied by variety, etc., is made possible, the closing adjustment excess of the roll gap is prevented and the damage of unpolished rice is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a roll clearance control device for a hulling roll.

[0002]

2. Description of the Related Art A load current value of a motor for driving a hulling roll is detected, and the detected load current value is compared with a control reference value.
A roll gap automatic control device that adjusts the gap between a pair of hulling rolls, and uses a detected load current value of a motor as a control reference value to maintain a predetermined escape rate is known. .

[0003]

[Problems to be Solved by the Invention] When rice is hulled with a hulling roll, the amount supplied to the hulling roll depends on the variety of the hulling, the number of branches and stems, the amount of water, etc. Even if the paddy supply control valve for adjusting the grain size is adjusted to a predetermined opening degree, the amount of grains supplied to the hulling roll may change in a large or small amount, and the operating rate is intended by the operator. There is a problem that hulling is not done.

In a conventional roll clearance control device, for example,
When controlling the roll gap based on the load current value according to the opening of the paddy supply control valve, the detected load current value is smaller than the control reference value and the paddy supply is When the opening of the control valve is detected to increase and the load current value is detected to decrease, the roll gap is closed and adjusted, so that the roll gap is closed too much and brown rice is damaged. Had occurred.

Therefore, in such a case, the present invention can cope with a change in the amount of supplied grains depending on the variety by stopping the opening and closing adjustment of the roll gap and correcting the control reference value. Thus, the above-mentioned troubles are to be solved.

[0006]

Means for Solving the Problems The technical means of the present invention for solving such a technical problem includes a pair of hulling rolls 7, 7 for hulling the paddy supplied from the paddy hopper 6. A paddy supply control valve for controlling the amount of grain supplied to the paddy rolls 7, 7; a paddy supply control valve potentiometer 52 for detecting the opening degree of the paddy supply control valve; Roll gap adjusting means for adjusting the roll gap between the rolls 7, 7, a main motor 55 for driving the hulling rolls 7, 7, and a load current value of the main motor 55 are detected. A load current detection sensor 48,
In comparison between the previous detection value and the current detection value of the detection values of the paddy supply control valve potentiometer 52 and the load current detection sensor 48, the detected load current value is smaller than the control reference value and the previous measurement When the increase in the opening of the paddy supply control valve and the decrease in the load current value are detected, the adjustment of the roll gap is stopped, and the detection valve opening and the detected load current of the paddy supply control valve at this time are detected. A roll gap control device for a hulling roll, comprising a roll gap automatic control for correcting the value to a control reference value and a reference correction means.

[0007]

When the paddy is supplied from the paddy hopper 6 to the pair of padding rolls 7, 7 and the padding operation is started, the padding rolls 7, 7 are started.
The load current value of the main motor 55 for driving the paddle is detected by the load current detection sensor 48, and the opening of the paddy supply control valve is detected by the paddle supply control valve potentiometer 52. The detected load current value is compared with the control reference value. If the detected load current value is high, the roll gap is adjusted to be open, and if the detected load current value is low, the roll gap is adjusted to adjust the roll gap based on the load current value. The gap control is performed, and the detected load current value returns to the control reference value.

Thus, during such control, the detected load current value is smaller than the control reference value, and the increase in the opening of the paddy supply control valve is detected with respect to the previous measured value. When the decrease in the current value is detected, the adjustment of the roll gap is stopped, and the detection valve opening and the detected load current value of the paddy supply control valve at this time are used as the control reference value to correct the reference value. Is made. Therefore, excessive closing adjustment of the roll gap can be prevented.

[0009]

As described above, according to the present invention, in such a case, the opening / closing adjustment of the roll gap is stopped and the control reference value is corrected. It is possible to cope with the change, and it is possible to prevent the roll gap from being closed excessively and prevent the brown rice from being damaged.

[0010]

Embodiments of the present invention shown in the drawings will be described below. First, based on FIGS. 1 and 2,
The overall configuration of the hulling sorter will be described. 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,
The hulling room 8 is provided with an interior such as 7. The sliding rice style selection unit 2 includes a sliding rice style selection box 9, a sliding rice style selection path 10 that is obliquely arranged from the lower rear to the upper front in the sliding rice style selection box 9, pity reception It comprises a gutter 11, a sliding rice receiving gutter 12, a suction fan 13, a dust tube 14, and the like. Next, the swing sorting device 3 will be described. Multi-stage swing sorting plate 15,
15,... Have irregularities for sorting formed on the plate surface,
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 15a.
c, the other side is a lower swinging side 15d, and the swing sorting plate 1
5 is tilted in both the vertical and horizontal directions, and the swing selection plate 15 is reciprocally swinged up and down in the horizontal direction by a swing arm, a swing device, or the like.

A distribution supply gutter 16 and a distribution case 17 are provided at a supply port formed on the supply side 15a in the vertical direction of the oscillating sorter plate 15 and closer to the upper side 15c in the horizontal direction.
After that, mixed rice is supplied. Swing sorting plate 1
In the mixed rice supplied in No. 5, small brown rice with a heavy specific gravity is distributed in a non-uniform flow on the upper side 15c in the horizontal direction due to the relationship between the size of the grain shape, the magnitude of the specific gravity, and the magnitude of the friction coefficient. The paddy with a large specific gravity is unevenly distributed on the lower side 15d in the horizontal direction, and unmixed mixed rice of unmixed rice and brown rice is unevenly distributed in the middle part thereof. Brown rice partition plate 18 provided corresponding to the discharge side 15b of the plate 15
And the paddy partition plate 19.

The brown rice separated by the brown rice partitioning plate 18 is taken out of the machine through a brown rice extraction gutter 20, a brown rice flow path 21, and a brown rice milling machine 5, and the mixed rice is mixed rice extraction gutter 22, a mixed rice Via the flow path 23, the sliding rice receiving gutter 12, the mixed rice frying machine 4, the mixed rice hopper 24, the distribution supply gutter 16, and the distribution case 17, it is again supplied to the rocking sorter 3 and re-sorted. The paddy is lifted and returned to the hulling unit 1 through the hulling discharge gutter 25, the hulling channel 26, and the hulling machine 27, and the hulling is performed again.

At the lower end of the brown rice partition plate 18, the upper ends of the rotation switching plates 18a and 18b are rotatably supported in the left and right direction. As shown in FIG.
Is moved to the swinging side, the lower end of the rotation switching plate 18a is rotated in a state of contact with the downflow opening of the brown rice extraction gutter 20, and the grains partitioned on the swinging upper side of the brown rice partition plate 18 are brown rice. Extraction gutter 2
When the brown rice partition plate 18 is taken out of the machine via the brown rice flouring machine 5 and the brown rice partitioning plate 18 from the state shown in FIG. As a result, the grains which are rotated in the same direction while being rotated in the clockwise direction and are separated on the swinging side of the brown rice partition plate 18 are guided by the rotation switching plate 18b to the mixed rice channel 23 side and are taken out. (Note that when the brown rice partition plate 18 moves to the uppermost swinging position, it moves further upward than the uppermost swinging end of the swinging sorting plate 15, and in that state, the rotation switching plate 18b is By turning clockwise from the state, the grains partitioned on the lower side of the brown rice partition plate 18 are guided to the mixed rice flow path 23 side, and the grains distributed on the upper side of the swing sorting plate 15 are removed from the inside of the machine. (It is a configuration in which the rice is circulated.) In addition, instead of the rotation switching plates 18a and 18b of the brown rice partition plate 18, It is also possible to provide a brown rice switching valve 37 at the downflow opening of the brown rice discharge gutter 20 to switch the grains to the outside extraction state or the in-machine circulation state, and to switch the grain by rotating the brown rice switching valve adjusting motor 38 forward or reverse. .

The mixed rice flow path 23 is provided with a mixed rice switching valve 39 which can be switched by forward / reverse rotation of the mixed rice switching valve adjusting motor 40, and the extracted kernels are circulated in the machine, or , It is configured to be switched to the return side to the hulling unit 1. Although illustration is omitted, the mixed rice hopper 24
The hulling supply control valve of the hulling unit 1 is interlockingly connected via an interlocking member such as a link, and when the mixed rice hopper 24 moves down or up due to an increase or decrease in the amount of grain, the hulling supply control valve is related. This is a configuration that is adjusted to the decreasing side or the increasing side.

The brown rice partition plate 18 can be reciprocated from the swinging side 15c to the swinging side 15d by the brown rice partition plate moving adjusting means 28. When the brown rice partition plate adjusting motor 29 is rotated forward or backward, the brown rice partition plate 18 swings. Upper side 15c or lower side 15d
The movement is adjusted. When the brown rice partitioning plate 18 moves to the uppermost swinging position, it is detected by the partitioning plate origin switch (swinging upside) 33, and the brown rice partitioning plate 18 moves to the lowermost swinging side 15d (swinging side). The movement of the brown rice partition plate 18 is detected at 34 and then stopped.

Above the discharge side 15b of the swing sorting plate 15,
A rice / brown rice discrimination sensor 30 is provided. The paddy / brown rice discrimination sensor 30 is movably supported in a lateral direction by a sensor moving means 31 constituted by a screw bar,
When the sensor adjusting motor 32 is rotated forward or backward, the sensor adjusting motor 32 is reciprocated in the lateral direction. When the paddy / brown rice discrimination sensor 30 moves to the uppermost swinging upper side 15c, it is detected by the sensor origin switch (swinging upper side) 35, and when the paddy / brown rice discrimination sensor 30 moves to the lowermost swinging side 15d, the sensor origin switch (swinging). (Lower side) 36, and each is stopped.

The rice / brown rice discrimination sensor 30 is constructed as follows in this embodiment. The light emitting unit irradiates the grain with an electromagnetic wave having a moisture absorption wavelength and a reference wavelength not absorbed by moisture, and receives an amount of reflected light (or an amount of transmitted light) from the grain by an optical filter unit, and the moisture absorption wavelength light passes through the optical filter unit. The light is input to the light receiving unit (moisture absorption wavelength light) via the
The reference wavelength light reflected by the optical filter unit is sent to the control unit 41 in the U, and is sent to the light receiving unit (reference wavelength light), converted into a voltage value and sent to the control unit 41. Thus, the configuration is such that the ratio between the two detected voltage values is calculated by the control unit 41, and is compared with a predetermined determination threshold value to determine the type of rice or brown rice. Note that the detection wavelength range is not limited to the above wavelength range.

Next, an input configuration of sensors and switches to a control microcomputer (hereinafter referred to as a control unit) 41 and a connection configuration to an actuator will be described.
The controller 41 includes a digital sensor input unit and a digital input circuit via a partition plate origin switch (upward swing) 33,
Partition plate origin switch (swinging side) 34, sensor origin switch (swinging side) 35, sensor origin switch (swinging side) 3
6, a roll deployment sensor 42 (which detects a state in which the gap between the hulling rolls 7, 7 is opened) is connected. A grain sensor 43 for detecting the presence or absence of grains in the paddy hopper 6 is connected via a comparison circuit.
6, display changeover switches 47 are connected to each other via a digital input circuit.

A load current detection sensor 48 is connected to the control unit 41 via a comparison circuit, and the movement of the rice partitioning plate 19 is moved via an analog input circuit and an A / D conversion circuit. The rice paddle potentiometer 49 for detecting the position, the brown rice partition plate potentiometer 50 for detecting the moving position of the brown rice partition plate 18, the rice / brown rice discrimination sensor 30, and the horizontal inclination angle of the swing sorting plate 15 are detected. The position of the selection plate inclination potentiometer 51, the opening of the hulling supply control valve of the hulling unit 1, the hulling supply control valve potentiometer 52, and the position of the adjustment lever for adjusting the hulling supply adjustment valve are detected. Paddy supply control lever
A potentiometer 53 and a rice / brown rice discrimination sensor potentiometer 54 are connected to each other.

The main motor 55, the brown rice partition plate adjusting motor 29, the sensor adjusting motor 32, and the brown rice switching valve adjusting motor for driving the hulling sorter from the control unit 41 via the output circuit. , A mixed rice switching valve adjusting motor 40, and a selecting plate inclination adjusting motor 5 for adjusting the lateral inclination angle of the swinging selecting plate 15.
6, a rice supply control valve adjustment motor 57 for adjusting the opening of the rice supply control valve, and a roll gap adjustment motor 58 for adjusting the roll gap adjustment means 58a shown in FIG. ing.

The control section 41 is connected to a monitor display section 59 via a display output circuit, and is connected to a swing rotation adjusting motor 60 via a rotation command output circuit. In this configuration, the rotation information of the swing rotation adjustment motor 60 is input to the control unit 41 via a rotation pulse input circuit. Further, a serial data receiving circuit 61 and a serial data transmitting circuit 62 are connected to the control section 41, and a nonvolatile memory 63 is connected to a memory section of the control section 41.

FIG. 3 shows an operation panel 64 of the control unit 41. Next, control contents of the control unit 41 will be described. First, the automatic / manual switch 44 is selected to the automatic side, and the operation / stop switch (not shown) is operated to the operation side. Then, the main motor 55 is turned on, and the rotating parts of the hulling sorter are driven. Next, an initial gap setting control for setting an initial gap between the hulling rolls 7, 7 is performed, and the roll gap is adjusted and set to a predetermined initial gap (for example, 1 mm).

Next, the process proceeds to the shutter opening initial setting control for adjusting the paddy supply control valve of the paddy hopper 6 to the initial opening,
An opening command for a predetermined time is issued to the paddy supply control valve adjusting motor 57, an initial opening setting for opening the paddy supply control valve to a predetermined opening (for example, 10 mm) is performed, and the rice hulling rolls 7, 7 are set. The paddy is supplied, and the hulling operation is started. Next, the process proceeds to roll gap control based on the load current value. Then, the detected load current value of the load current detection sensor 48 is sent to the control unit 41, and the control reference value and the detected load current value are compared. If the detected load current value is higher (or lower) than the control reference value Has a roll gap adjusting motor 5
8 is adjusted to the open side (or closed side) for a predetermined time (for example, 200 mSEC), the detected load current value is returned to the control reference value, and the grind is performed while maintaining the roll gap at the predetermined gap. . If the detected load current value is within the range of the control reference value, no control command is issued, and the hulling operation is performed while maintaining the roll gap as it is.

Instead of the roll gap control based on the load current value, the crushed rice on the hulling rolls 7, 7 is detected by a crushing rate sensor (not shown), and the detected crushing rate is determined. It is good also as composition which compares with a standard escape rate and controls a hulling roll gap according to an escape rate standard. Next, based on FIG. 5, in controlling the roll gap based on the load current value, the paddy supply control valve potentiometer 52 and the load current detection sensor 48 for detecting the opening degree of the rice supply control valve. The control related to the detection information is described.

FIG. 5A shows a control reference line.
The vertical axis indicates the load current value, and the horizontal axis indicates the valve opening of the paddy supply control valve. In this control, the data is measured by the paddy supply control valve potentiometer 52 and the load current detection sensor 48 every predetermined time (for example, 60 seconds). From the trend,
The control command and the control reference value for the gap are corrected.

A. The paddy supply control valve potentiometer 52 which is larger than the control reference value and is
In the case where the increase in the opening degree of the paddy supply control valve is detected and the increase in the load current value is detected by the load current detection sensor 48,
The roll gap opening command is issued in one step (for example, 200 mS
EC), the roll gap adjusting hulling 58 rotates, and the roll gap is opened and adjusted.

B. The paddy feed control valve potentiometer 52 which is smaller than the control reference value and is
In the case where the increase in the opening degree of the paddy supply control valve is detected and the increase in the load current value is detected by the load current detection sensor 48,
The roll gap closing adjustment command is issued for one step, and the roll gap is closed and adjusted. c. It is smaller than the control reference value, and with respect to the previous measured value A, the increase of the opening of the rice supply control valve is detected by the rice supply control valve potentiometer 52, and the load current is detected by the load current detection sensor 48. When the value decrease is detected, the control command for the roll gap is stopped, and the detection opening degree of the paddy supply control valve potentiometer 52 and the load current value detected by the load current detection sensor 48 are changed. The reference value as the control reference value is corrected.

D. The paddy feed control valve potentiometer 52 which is smaller than the control reference value and is
In the case where the detection of the decrease in the opening of the paddy supply control valve and the detection of the decrease in the load current value by the load current detection sensor 48 are performed, a command to close the roll gap is issued for one step, and The closing gap is adjusted. e. It is larger than the control reference value, and with respect to the previous measured value A, the detection of the decrease in the opening of the rice supply control valve by the rice supply control valve potentiometer 52, and the load current by the load current detection sensor 48. When a decrease in the value is detected, a command to close the roll gap is issued for one step, and the roll gap is opened and adjusted.

F. The paddy supply control valve potentiometer 52 which is larger than the control reference value and is
When the detection of the decrease in the opening of the paddy supply control valve and the detection of the increase in the load current value by the load current detection sensor 48 are stopped, the control command for the roll gap is stopped and the potential of the paddy supply control valve of this time is set. Detection opening of meter 52 and load current detection sensor 4
The reference value is corrected using the detected load current value of No. 8 as a control reference value.

When the hulling is performed with the hulling rolls 7, 7, depending on the variety of the hulling, the degree of branch stalks, the degree of stalks, and the size of water, etc.
Even if the paddy supply control valve is at a predetermined opening, the amount of grain supplied to the paddy rolls 7, 7 may change in size, and the paddy may not be stopped at the operator's intended removal rate. is there. In the conventional roll gap control device, in the case of the above c, the roll gap is closed and adjusted. Therefore, there is a tendency that the roll gap is closed and adjusted too much. Since the roll gap is adjusted, the roll gap tends to be adjusted too much, causing problems such as damage to the grain and a decrease in the shedding rate.

However, in this embodiment, in the case of the above c and f, the adjustment of the opening and closing of the roll gap is stopped, and the control reference value is corrected. It is possible to solve the above-mentioned troubles. Next, another embodiment of the roll gap control will be described with reference to FIGS. As shown in FIG. 6, the upper switch 45, the lower switch 46, the load current detection sensor 48, the paddle supply control valve potentiometer 52, and the type changeover switch 65 are connected via an input interface. Connected to the control unit 41. In addition, the control unit 41 sends the roll gap adjusting motor 5 via the output interface.
8. A control command is output to the main motor 55. Also, EE
Data is exchanged between the PROM (backup memory) and the control unit 41, and the data of the EEPROM 66 can be rewritten by the data rewriting device 67.

As shown in FIG. 7, the data of the EEPROM 66 are, as shown in FIG.
The control reference value of the parameter n is stored and stored. The control reference value for the variety data is, for example, a hulling roll 7,
7. Roll gap opening adjustment time in the initial setting of the roll gap, control start time for controlling the roll gap based on the load current value, and control of the roll gap based on the load current value And the like.

Next, control contents will be described based on the flow of FIG. When the main motor 55 is turned on, the roll gap is initialized in the following manner. A roll gap opening command is issued from the control unit 41, the roll gap is adjusted, and the no-load current value in the non-contact state of the roll gap where the load current value detected by the load current detection sensor 48 does not change is detected. Then, it is determined that the roll gap is in a non-contact state. Next, when the load current value is detected while the roll gap is closed and the increase in the load current value is detected, it is determined that the hulling rolls 7 are in slight contact. Next, the process proceeds to the type determination, and the type switch 65
Is determined, and when the type 1 is selected, the roll gap opening adjustment time D11 in the initial setting control of the roll gap stored in the EEPROM 66 is read, and the data is read. The roll gap opening command is issued for a predetermined time based on the data, and the roll gap is initialized. When the product type 2 is selected, the roll gap is initialized based on the data D12 of the product type 2 in the same manner.

When the roll gap initial setting control is completed, the process proceeds to the control shown in FIG. 9 and the following control is performed. During the hulling work with the roll gap being the initial gap, the switch 45
Alternatively, it is determined whether the descent rate down switch 46 has been pressed and the operator has been manually adjusted. When 45 is pressed, the roll gap closing adjustment is performed, the roll gap closing adjustment time is integrated, and the accumulated time tc is calculated. Also, when 46 is pressed, similarly,
The accumulated time to is calculated.

Next, it is determined whether or not the load control start time for adjusting the roll gap based on the load current value has ended.
Upon completion, the total output time Rt (to-tc) is calculated. Next, the type selection of the type change switch 65 is determined, and when the type 1 is selected, the opening adjustment time in the roll gap initial setting control is D11 = D11 +
Rt is calculated, and when the type 2 is selected, the opening adjustment time is similarly calculated as D12 = D12 + Rt, and then the data D11 and D12 stored in the EEPROM 66 are respectively added. D11 + Rt, D12
It is corrected to + Rt.

Next, the process shifts to the reference value measurement control based on the load current value. The type changeover switch 65 determines the type selection, and when the type 1 is selected, the current detection of the load current detection sensor 48 is performed. Using the load current value So as a control reference value, the load current value control reference value D3 of the EEPROM 66 is used.
1 is corrected to So. When the product type 2 is selected, similarly, the load current value control reference value S32 is corrected to So using the detected load current value So as a control reference value. Next, control is transferred to load current value reference control, and the roll clearance is adjusted with the corrected control reference value.

In executing the above control, a configuration may be adopted in which the early rice variety 1 is automatically selected or the late rice variety 2 data is automatically selected according to the date of the hulling operation. In the conventional device, hulling rolls 7, 7
When working while controlling the roll gap automatically,
It is necessary to change the control reference value every time the variety changes, which is complicated. Even a relatively small individual farmer rarely cultivates only a single variety, often cultivates a plurality of varieties, and requires adjustment according to the variety.

In the above-described configuration, for example, the working condition of the early rice is stored in the cultivar 1 and the working condition of the late rice is stored in the cultivar 2. By selecting 1 or type 2, the control reference value corresponding to the type is selected and grinded, so that the operation for adjusting the control reference value is not required and the operation is simplified.

The above embodiment may be modified as shown in FIG. R between the control unit 41 and the personal computer 68
It is configured to be able to communicate with each other via a converter 69 conforming to the S232C specification. A keyboard 68 and a display 71 are connected to the personal computer 68 so that information can be exchanged with the storage device 72. is there.

The operation of the personal computer 68 causes the EEPR
The data of the OM 66 can be stored in the external storage device 72, and the personal computer 68 can be connected to the control unit 41 when the capacity of the EEPROM 66 is insufficient or a failure occurs, and the data of the control unit 41 can be backed up. The operation of the personal computer 68 causes the external storage device 72 to read the EEPROM 6 of the controller 41 from the external storage device 72.
When the configuration is such that the type data of No. 6 is selected, the number of selections of the type change switch 65 is limited to only a small number of main type data, and switching to the type of less frequently used can be performed by a personal computer operation. , The configuration becomes simple.

The data in the EEPROM 66 can be updated from the external storage device 72 by operating the personal computer 68. Next, an embodiment shown in FIGS. 11 to 12 will be described. If the power is turned off while data is being written to the EEPROM 66, the data being written becomes undefined, a normal value cannot be stored, and normal control is not performed. This embodiment is intended to solve such a problem.

One data, for example, the operation time of the hulling sorter is written to three or more different addresses in the EEPROM 66 (data is written by sequentially designating addresses sequentially and writing them). Is.) When data is read from the EEPROM 66 into the control unit 41, the data is compared with the data of the plurality of addresses, and data different from the data values of the other addresses is obtained at two or more other locations. This is a configuration for correcting data values.

A description will be given based on the flow of FIG. When the power is turned on, the data in the EEPROM 66 is read into the control unit 41, and the read operation time data N is compared with a plurality of other data. Next, ON / OFF of the main motor 55 is determined. If the main motor 55 is ON, it is determined whether a predetermined time (for example, 10 minutes) has elapsed.
If the predetermined time has elapsed, the total operation time is N = n
The operation time N is written to the address AAAA, and is sequentially calculated as the address BBB.
B, address CCCC.

Next, the details of the data collation control will be described with reference to FIG. Address AA of EEPROM 66
The data of AA is a, the data of address BBBB is b, the data of address CCCC is c. When the data collation control is started, it is determined whether data a = b = c. Judgment is made,
When the data of a, b, and c are equal, the operating time T =
The subsequent operation time is integrated based on a.

If the data is not a = b = c, the process proceeds to the next step, where it is determined whether or not a = b.
In the case of b, since the operation time T = a, the address C
Data a is written to CCC. Also, data a = b
If not, the process proceeds to the next step, and it is determined whether or not the data a = c.
Since the data is a, the data a is written to the address BBBB.

When data a = c is not satisfied, b =
c, and if b = c, the address A
“T + 10 minutes” is written in AAA, BBBB, and CCCC. If b = c ≠ a, the power is turned off while data a is being written to the address AAAA.
The “last operation time T + 10 minutes (elapsed in the flow of FIG. 11)” is the operation time.

Next, the partition control of the brown rice partition plate 18 will be described. When the brown rice partition plate control is started, the control is shifted to the detection of the boundary position between the rice and the brown rice by the rice / brown rice discrimination sensor 30, and the detection of the voltage of the rice and the brown rice within the predetermined time is performed based on the detected voltage value of the rice / brown rice discrimination sensor 30. The number is detected, and the number of detected rice grains is compared with the control reference value. When the number of detected rice grains is large (or small), the detection operation is continued while moving the rice / brown rice discrimination sensor 30 to the swinging side 15c (or swinging side 15d) by a predetermined distance, and the number of detected rice grains is controlled by the control standard. The position that falls within the value range is defined as the boundary detection position of rice / brown rice. Next, based on the boundary detection position, the partition position of the brown rice partition plate 4 is calculated, a movement command for the brown rice partition plate 18 is output, and the brown rice partition plate 18 is 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 front view

FIG. 4 is a block diagram.

FIG. 5 is a graph and table.

FIG. 6 is a block diagram.

FIG. 7 Table

FIG. 8 is a flowchart.

FIG. 9 is a flowchart.

FIG. 10 is a block diagram.

FIG. 11 is a flowchart.

FIG. 12 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 removal gutter, 23 ... mixed rice flow path, 24 ... mixed rice hopper, 25 ... paddy extraction gutter, 26 ... paddy flow path, 27 ... paddying machine, 28 ... brown rice partition plate movement adjusting means, 29 ... Brown rice partition plate adjustment motor, 30 ... Rice / brown rice discrimination sensor, 31 ... Sensor moving means, 32 ... Sensor adjustment motor, 33 ... Partition plate origin switch (upward), 34 ... Partition plate origin switch (downward) Side), 35 ... sensor origin switch (upward swing), 36 ... sensor origin switch (downward swing), 37 ... brown rice switching valve, 38
... Brown rice switching valve adjustment motor, 39 ... Mixed rice switching valve 40 ... Mixed rice switching valve adjustment motor, 41 ... Control unit, 42 ...
Roll deployment sensor, 43 ... Glen sensor, 44 ... automatic /
Manual switch, 45 ... Derating rate upper switch, 46 ... Derating rate lower switch, 47 ... Display changeover switch, 48 ... Load current detection sensor, 49 ... Rice paddle potentiometer, 50 ...
Brown rice partition plate potentiometer, 51 ... sorting plate inclined potentiometer, 52 ... rice feed control valve potentiometer, 5
3 ... Rice supply adjustment lever potentiometer, 54 ... Rice / brown rice discrimination sensor potentiometer, 55 ... Main motor, 56
… Sorting plate inclination adjustment motor, 57… Rice supply adjustment valve adjustment motor
Roller gap adjusting motor, 58: Monitor display unit, 60: Swing rotation adjusting motor, 61: Serial data receiving circuit, 62: Serial data transmitting circuit, 63: Non-volatile memory, 64 ... operation panel, 65 ... type changeover switch, 66 ... EEPROM, 67 ... data rewriting device, 68
... Personal computer 69 ... Converter, 70 ... Keyboard, 71 ... Taste play, 72 ... Storage device

Claims (1)

[Claims] 1. A pair of hulling rolls 7, 7 for hulling the hulling supplied from the hulling hopper 6, and a hulling supply control valve for adjusting the amount of grain supplied to the hulling rolls 7, 7. And a rice supply control valve potentiometer 52 for detecting the opening of the rice supply control valve.
A roll gap adjusting means for adjusting the roll gap between the hulling rolls 7, 7; and a main motor 5 for driving the hulling rolls 7, 7.
5, a load current detection sensor 48 for detecting the load current value of the main motor 55, a control reference value, a previous detection value among the detection values of the paddy supply control valve potentiometer 52 and the load current detection sensor 48. In comparison with the current detection value, the detected load current value is smaller than the control reference value, and the increase in the opening of the paddy supply control valve and the decrease in the load current value are detected with respect to the previous measurement value. Sometimes, the adjustment of the roll gap is stopped, and the roll gap automatic control and reference correction means for correcting the detection valve opening and the detected load current value of the current rice supply control valve to a control reference value are provided. Roll gap control device for sliding roll.