JPH0716478A - Controller for rice hulling roll - Google Patents

Abstract

PURPOSE:To improve the husking ratio of hulled rice by outputting a control command signal to increase a circumferential speed from an arithmetic control section to a circumferential speed control motor, thereby controlling the circumferential speed of rice hulling rolls so as to increase the speed when both of a detected moisture value and a detected valve opening degree exceed a control reference moisture value and a control reference valve opening degree. CONSTITUTION:The rice hulling device for controlling the spacing between the rice hulling rolls 9 and 9 with a husking rate reference and load current value reference is provided with a moisture meter for detecting the moisture of rough rice suplied to the rice hulling rolls 9, 9, a rough rice supply valve opening degree sensor 31 for detecting the opening degree of a rough rice supply control valve 30 to the rice hulling rolls 9, 9 and a circumferential speed control means 44 for controlling the circumferential speed of the rice hulling rolls 9, 9. The control of the spacing between the rice hulling rolls 9, 9 by the husking rate reference and load current value reference is suspended and is shifted to the circumferential speed control to increase the circumferential speed of the rice hulling rolls 9, 9 when the detected moisture value is larger than the control reference moisture value and the detected valve opening degree of the rough rice supply control valve 30 is larger than the control reference valve opening degree.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hulling device for hulling with a pair of hulling rolls, in which the peripheral speed of the hulling roll is adjusted in relation to the water content and supply amount of the hull, The purpose is to optimize the hulling work.

[0002]

2. Description of the Related Art A hulling device for hulling work by rotating a pair of hulling rolls in mutually opposite directions, wherein the husking rate of hulled down rice or hulling roll is used. There is a hulling device for hulling while automatically adjusting the gap of the hulling roll according to the load current value of the driving motor.

In such a hulling device, the removal rate decreases as the moisture content of the paddy increases, and the removal rate decreases even when the amount of the paddy supplied to the hulling roll increases. Tend. So, in such a case, as a method to increase the removal rate,
Japanese Patent Laid-Open No. 61-450 discloses a technique for adjusting the clearance of the hulling roll to increase the rate of removal, and adjusts the amount of supply to the hulling roll in relation to the water content of the hull. Japanese Patent Application Laid-Open No. 56-159139 discloses a conventional technique.

[0004]

[Problems to be Solved by the Invention] In relation to the above-mentioned water content, the gap of the hulling roll is adjusted to increase the rate of removal of the grain.
In Japanese Patent Publication No. 1-450, when the gap between the hulling rolls is narrowed when the water content is high, there is a drawback that the brown rice is rubbed, and the supply to the hulling rolls is related to the water content. Japanese Utility Model Laid-Open No. 56-159139, which regulates the amount, has a drawback in that although the dewatering rate is maintained even with high water content, the feed rate decreases and the efficiency does not increase. Therefore, the present invention seeks to overcome such drawbacks of the prior art.

[0005]

The technical means of the present invention for solving such a technical problem is the removal rate sensor 2
Main dehumidification rate of 4 or main motor 2 for driving hulling rolls
A hulling device for automatically adjusting the gap between hulling rolls 9 and 9 by comparing the detected load current value of No. 6 with the set reference depletion rate or the set reference load current value. Moisture meter 29 for detecting the moisture content of the paddy supplied to 9, 9, or a moisture setting switch for setting the moisture value, and a hulling roll 9, 9
To the paddy supply control valve 30 for detecting the opening of the paddy supply control valve 30, the paddy supply control motor 35 for opening and closing the paddy supply control valve 30, and the paddy roll 9. The peripheral speed adjusting means 44 for adjusting the peripheral speed of the water content meter 9 and the hulling roller in relation to the water content information from the water content meter 29 or the water content setting switch.
That is, the hulling roll adjusting device is constituted by a peripheral speed adjusting command signal output means for adjusting the peripheral peripheral speeds of the rollers 9, 9 in a related manner.

[0006]

During the hulling / sorting operation, the removal rate calculated by the removal rate sensor 24 or the main motor 26 for driving the hulling rolls 9 and 9 is used.
While comparing the detected load current value with the set reference depletion rate or the set reference load current value, the gap between the hulling rolls 9 and 9 is automatically adjusted, and the hulling is performed while maintaining a predetermined dewetting rate. Sorting work is performed. During such work, the moisture content of the paddy supplied to the paddy rolls 9 and 9 is detected by the moisture meter 29, and the paddy feed amount of the paddy feed valve to the paddy rolls 9 and 9 is opened. Detected by the degree sensor 31, and input to the arithmetic control unit 33. When the detected water content and the detected valve opening are both the control reference water content and the control reference valve opening,
The peripheral speed increase adjustment command signal output from the arithmetic and control unit 33 is output to the peripheral speed adjustment motor 43, the peripheral speeds of the hulling rolls 9 and 9 are increased and adjusted, and the removal rate of the falling rice is increased. improves.

[0007]

Embodiments of the present invention shown in FIGS. 1 to 4 will be described below. First, the overall configuration of a hulling and sorting machine will be described with reference to FIG. This hulling / sorting machine is used after hulling in hulling part 1 for hulling, sloping rice wind selecting part 2 for wind-selecting spilled rice from hulling part 1, and sloping rice wind selecting part 2. It is composed of a rocking / sorting device 3 for sorting the slid-down rice into paddy / brown rice and a fried grain conveying section 4. Then, the hulled portion 1 is arranged in the upper front part of the machine body, and the slid rice-rice selection part 2 is arranged in the lower front part of the machine body. Arranging the mixed rice fried machine 5 and the paddy fried machine 6 in the grain transport unit 4, and arranging the swing selection device 3 behind the mixed rice fried machine 5 and the paddy fried machine 6.
This is a configuration in which the brown rice fried machine 7 of the fried grain transport unit 4 is arranged behind the swinging and sorting apparatus 3.

The paddy hull 1 comprises a paddy hopper 8, a paddy roll 9,
9 is the interior of the hulling chamber 10 and the like, and the hulled rice that has been hulled by the hulling section 1 is the downhill rice wind selection path section 2 below.
It is a structure that flows into. The sliding rice wind selection unit 2 includes a sliding rice wind selection box 11, a sliding rice wind selection box 11, and a sliding rice wind selection path 12, which is slanted from the lower rear to the upper front. Gutter 13,
It is composed of a scraped-down rice gutter 14, a suction dust collector 15, a dust barrel 16, and the like.

Next, the swing selecting device 3 will be described.
The flat rectangular swinging sorting plates 17, 17, ... Are each provided with an uneven portion for sorting, and one side in the vertical direction (the front-back direction orthogonal to the paper surface of FIG. 1) has a higher supply side, and the opposite side. The other side is the lower discharge side, and the horizontal direction (Fig.
The left and right direction (orthogonal to the plane of the paper of FIG. 1) is defined as a high upside, and the opposite low side is a downside.
.. are inclined both in the vertical and horizontal directions.

The rocking selection plates 17, 17, ... Are supported by a rocking arm (not shown) so as to be capable of reciprocating rocking up and down in the horizontal direction, and one rocking arm (not shown) is supported. It is configured to be rocked by a rocking device (not shown). Swing selection plate 17,1
A supply port is provided on the vertical supply side of 7, ..., and slid rice fried by a mixed rice fried machine passes through a distribution supply gutter 20 and a distribution case 21, and a swing selection plate 17, 1
7, ... Then, the mixed rice has a large grain size, a large specific gravity, a large friction coefficient, and so on. Due to the large specific gravity, the small brown rice has a nonuniform distribution in the brown rice distribution basin on the upper side in the lateral direction, which is the sorting direction. The paddy, which has a larger and lighter specific gravity than the unpolished rice, is unevenly distributed in the paddy distribution basin on the lateral swaying side.
In the mixed rice distribution basin in the middle part, unmixed mixed rice of unhulled rice and brown rice is unevenly distributed.

The brown rice partition plate 22 and the paddy partition plate 23 are arranged so as to face the discharge side of the rocking sorting plates 17, 17.
The brown rice that is arranged so that it can be moved and adjusted in the lateral direction of the swinging rice and is distributed unevenly in the brown rice distribution basin of the rocking sorting plate 17 is separated by the brown rice partition plate 22 and taken out, and then passes through the brown rice lifting machine 7 and out of the machine. Taken out. In addition, the mixed rice that has drifted to the mixed rice distribution basin of the rocking selection plate 17 is separated by the brown rice partition plate 22 and the paddy partition plate 23 and taken out, and then the mixed rice is mixed rice flow path and the mixed rice fried machine. After being fried, the grains are circulated and fed to the swing sorting device 3 for re-sorting. Also, the swing selection plate 1
Unevenly distributed paddy in the paddy distribution basin 7 is separated by the paddy partition plate 23 and taken out, and the paddy is fried through the paddy flow path and the paddy grain elevator 6 to be reduced to the paddy section 1 and again padded. To be done.

Next, FIGS. 2 to 4 will be described. Two
Reference numeral 4 is a light-emitting element and a light-receiving element, and is a removal rate sensor that detects the removal rate of the removed rice after the removal of rice and the selection of the rice. The scraped rice, which has been wind-selected,
The removal rate sensor 24 is sampled and supplied. The load current value of the main motor 26 for driving the hulling rolls 9 and 9 is
It is detected by the load current sensor 25. The removal rate setting switch 27 has a function of setting the removal rate of the paddy rice of the hulling rolls 9, 9. The supply amount setting switch 28 has a function of setting the amount of paddy supplied to the hulling rolls 9, 9 to large, medium, or small. The moisture meter 29 has a function of detecting the moisture content of the paddy that is hulled.

The removal rate sensor 24, the load current sensor 25, the removal rate setting switch 27, the paddy supply valve opening sensor 31 for detecting the opening of the paddy supply control valve 30 of the paddy hull 1, and the work efficiency. The supply amount setting switch 28, the operation switch 32, and the moisture meter 29 to be set are connected to a CPU having a calculation unit and a register unit built therein, and a calculation control unit 33 including a program memory and a calculation memory.

The gap between the hulling rolls 9 and 9 can be opened and closed by a roll gap adjusting means 34. The roll gap adjusting means 34 is adjusted by a roll gap adjusting motor 35. The paddy shutter 36 is configured to be opened and closed by a shutter open / close adjusting means 37, and is adjusted and driven by a shutter open / close adjusting motor 38. The paddy supply control valve 30 is the paddy supply adjusting means 3.
The paddy supply adjusting motor 40 adjusts the paddy supply adjusting means 39 in such a manner that the opening and closing can be adjusted by 9. Power is transmitted to the main shaft pulley 41 and the sub shaft pulley 45 of the hulling portion 1 from the main motor 26 via the transmission belt 42, and the hulling rolls 9 and 9 have a peripheral speed difference. It is also configured to be rotationally driven. The auxiliary shaft pulley 45 is configured as a split pulley that can be adjusted to be wide and narrow, and the pulley width adjusting means 44 can be operated by rotating the pulley adjusting motor 43 forward or backward. The peripheral speed of the hulling rolls 9 and 9 is adjusted by widening the hulling rolls 9 and 9 (note that the hulling rolls 9 and 9 are supported by an inverter motor not shown). The number of rotations may be adjusted as a structure in which each rotation is driven).

The arithmetic control unit 33 is provided with a roll gap adjusting motor 35, a shutter opening / closing adjusting motor 38, and a paddy supply adjusting mode via an output interface and a driving circuit.
It is connected to the motor 43 and the pulley adjustment motor 43, and a control command signal is output to each of them.
Next, the control content of the arithmetic control unit 33 will be described. First, the removal rate setting switch 27 and the supply amount setting switch 28 are operated to set a desired removal rate and work efficiency, and the operation switch 32 is operated. Then, each rotating portion of the hulling / sorting machine is driven, and the initial gap setting control of the hulling rolls 9 is started.

That is, a gap opening command signal from the arithmetic and control unit 33 is sent to the roll gap adjusting motor 35, the roll gap adjusting means 34 operates in the opening direction, and the gap between the hulling rolls 9, 9 is opened for a predetermined time. The non-contact state of the hulling rolls 9 and 9 whose load current value detected by the load current sensor 25 does not change is detected. Next, a gap closing command signal for the hulling rolls 9, 9 is output to close the hulling roll gap, and the load current sensor 25 detects a predetermined increase in the load current value, and the hulling rolls 9, 9 When a slight contact is detected, the gap closing command signal is stopped and the hulling rolls 9 and 9 are stopped from moving in the closing direction. Then, a gap opening command signal for setting an initial gap is output from the arithmetic control unit 33 to adjust the gap opening of the hulling rolls 9 to set an appropriate initial gap (for example, 1 mm). . When the initial clearance setting adjustment control of the hulling roll is completed, an open command signal from the arithmetic control unit 33 is then output to the hull supply adjusting motor 40 for a predetermined time, and the hull supply adjusting valve 30 of the hulling unit 1 is output. The opening degree is set to a predetermined opening degree (for example, 10 mm), and the hulling operation is started.

Next, a control command signal based on the large / medium / small supply amount setting of the supply amount setting switch 28 is sent to the paddy supply adjusting motor 40, and the paddy supply adjusting valve 30 is set to the set efficiency opening. The amount of paddy is adjusted and the amount of paddy corresponding to the setting of the amount of supply is supplied. Next, the clearance control of the hulling rolls 9, 9 based on the removal rate is started. First, the light amount of the removal rate sensor 24 is adjusted,
The light emitting element is adjusted to an appropriate amount of light to discriminate between paddy and brown rice. Next, the voltage signal of the grain that has passed through the removal rate sensor 24 is input to the arithmetic control unit 33 via the sample hold circuit and the A / D conversion circuit, and the voltage signal is directly divided to the arithmetic control unit 33. When the input voltage is input and the voltage signal of a predetermined number of sample particles is read, the removal rate is calculated.

Next, the control reference removal rate set by the removal rate setting switch 27 in the arithmetic and control unit 33 is compared with the calculated removal rate, and the calculated removal rate is higher than the control reference removal rate (or , Low), a gap opening command signal (or a gap closing command signal) is output to the roll gap adjusting motor 35 to adjust the gap of the hulling roll to a predetermined amount on the opening side (or the closing side), and the setting reference If the calculated removal rate is within the range of the set reference removal rate, the control command signal is not output, and the hull roll gap is maintained as it is. Hulling work is performed. Instead of this removal rate control, the load current value of the main motor 26 for driving the hull rolling roll is detected by the load current sensor 25, and compared with the control reference load current value. The load current value control may be performed to adjust the clearance between the two. Next, the peripheral speed control of the hulling roll based on the paddy moisture and the supply amount will be described. The water content of the paddy is detected by the moisture meter 29, and the opening of the paddy supply control valve 30 is detected by the paddy supply valve opening sensor 31. Next, the detected water content value α is compared with the control reference water content value α1, and the detected valve opening degree β of the paddy supply regulating valve 30 is compared with the control reference valve every β1. When both the detected moisture value α and the detected valve opening β are equal to or lower than the control reference value, the dehulling rate reference or the load current value reference described above is performed without adjusting the peripheral speed of the hulling roll. The hulling work is performed under the clearance adjustment control of the hulling rolls 9, 9.

Further, the detected water content value α is the control reference water content value α1.
Below, and when the detected valve opening β is larger than the control reference valve resolution β1, the hulling based on the depletion rate reference or the load current value reference described above without adjusting the peripheral speed of the hulling roll. Low
The hulling operation is performed under the gap adjustment control of the rule 9, 9.
Further, the detected water content value α is larger than the control reference water content value α1,
In addition, when the detected valve opening β is smaller than the control reference valve resolution β1, the hulling roll based on the above-mentioned depletion rate reference or load current value reference is adjusted without adjusting the peripheral speed of the hulling roll. 9, 9
Hulling work is performed under the gap adjustment control.

When the detected water content value α is larger than the control reference water content value α1 and the detected valve opening β is larger than the control reference valve resolution β1, the hulling roller based on the above-mentioned depletion rate reference or load current value reference is used. -The control of adjusting the clearance of the roll gap is stopped, and the peripheral speed control for increasing the peripheral speed of the hulling roll is performed, and the peripheral speed increase command signal is output from the arithmetic control unit 33 to the pulley adjusting motor 43. Then, the main shaft pulley 41 is expanded and adjusted through the pulley width adjusting means 44, the number of rotations of the main shaft pulley 41 increases, and the peripheral speed of the hulling rolls 9, 9 increases. It is adjusted to improve the removal rate of scraped rice.

In this embodiment, the moisture meter 29 is provided to automatically detect the moisture of the paddy, but a moisture setting switch (not shown) is provided so that the operator can handle the moisture of the paddy. As a configuration that can set the specified moisture, by comparing the large, medium and small moisture set by the moisture setting switch (not shown) with the control reference moisture value, the above-mentioned peripheral speed control of the hulling roll is performed. It may be configured to.

Next, the operation of the above-mentioned embodiment will be described. When performing the hulling work, the hull is supplied to the hull hopper 8 of the hulling section 1 and the operation switch 32 is turned on. Then, the paddy is hulled by the hulling rolls 9 and 9, the slidable rice flows down to the lower slidable rice wind selecting section 2, and the hull having a light specific gravity is sucked and dusted by the suction duster 1.
5, the mixed rice having a large specific gravity is discharged to the outside of the machine through the dust discharge pipe 16, and is dropped and sorted by the sliding rice receiving trough 14, and then the mixed rice is fried by the mixed rice fried machine 5, It is supplied to the swing selection plates 17, 17, ... Through the distribution supply gutter 20 and the distribution case 21. The mixed rice fed to the swing selection plate 17 is separated and sorted according to the size of the grain shape, the magnitude of the specific gravity, the magnitude of the friction coefficient, etc. by the reciprocal swinging in the horizontal oblique direction, and the small size of the heavy weight is used. Brown rice is unevenly distributed in the brown rice distribution basin on the upper side of the horizontal direction, and unhulled rice, which has a larger and lighter specific gravity than the unpolished rice, is unevenly distributed in the hull distribution basin on the lower side of the horizontal shaking and separated in the middle part. The mixed rice of unhulled rice and brown rice is distributed unevenly and separated and sorted. The grains thus separated and sorted are separated by the brown rice partition plate 22 and the paddy partition plate 23 and taken out.

During such a hulling / sorting operation, the hulling / sorting is performed while the gap between the hulling rolls 9 is adjusted according to the removal rate standard or the load current value standard. The moisture of the paddy is detected by a total of 29, and the paddy supply valve opening sensor 3
At 1, the opening degree of the paddy supply amount control valve 30 is detected, and the following peripheral speed control of the paddy roll is performed. That is, when both the detected water content value α and the detected valve opening degree β are below the control reference value, or when the detected water content value α is below the control reference water content value α1 and the detected valve opening degree β is the control reference valve resolution. When it is larger than β1, or the detected moisture value α is the control reference moisture value α1
And the detection valve opening β is larger than the control reference valve resolution β1.
If it is smaller than the above, the hulling work is performed by adjusting the hulling roll clearance based on the above-mentioned removal rate reference or load current value reference without adjusting the peripheral speed of the hulling roll. I,
The detected water content value α is larger than the control reference water content value α1, and
When the detected valve opening β is larger than the control reference valve resolution β1, the gap adjustment control of the hulling rolls 9 and 9 based on the depletion rate reference or the load current value reference is stopped, and the hulling roll is released.
The peripheral speed control is increased to increase the peripheral speed of the rice roll, and the peripheral speed of the hulling roll is adjusted to be increased to reduce the skin loss of the brown rice and improve the removal rate of the scraped rice. .

[0024]

As described above, according to the present invention, the moisture content detected by the moisture meter 29 is larger than the control reference moisture content, and
When the detected valve opening of the paddy supply valve opening sensor 31 is larger than the control reference valve resolution, the clearance adjustment of the paddy roll based on the removal rate reference or the load current value reference is stopped, and the padding roll is closed.
The peripheral speed of the hulling rolls 9 and 9 is increased by shifting to the peripheral speed control for increasing the peripheral speed of the hull, and the hulling efficiency is maintained while maintaining the removal rate and preventing the brown rice from becoming rough. Therefore, the hulling and sorting work can be smoothly performed.

[Brief description of drawings]

[Figure 1] Whole cut side view

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

FIG. 3 is a block diagram.

[Fig. 4] Flow chart

[Explanation of symbols]

 1 Rice hull part 2 Sliding rice wind selection part 3 Swing sorting device 4 Lifting grain transport part 5 Mixed rice grain hulling machine 6 Hull grain hulling machine 7 Brown rice grain hulling machine 8 hull hopper 9 hulling roll 10 hulling room 11 Sliding rice wind selection box 12 Sliding rice wind selection path 13 Pile receiving gutter 14 Sliding rice receiving gutter 15 Suction dust collector 16 Dust collecting cylinder 17 Swiveling sorting plate 20 Distribution supply gutter 21 Distribution case 22 Brown rice partition plate 23 Paddy partition plate 24 Depletion rate sensor 25 Load current sensor 26 Main motor 27 Depletion rate setting switch 28 Supply amount setting switch 29 Moisture meter 30 Paddy feed control valve 31 Paddy feed valve opening sensor 32 Operation switch 33 Computational control Part 34 Roll gap adjusting means 35 Roll gap adjusting motor 36 Paddy shutter 37 Shutter open / close adjusting means 38 Shutter open / close adjusting motor 39 Paddy supply adjusting means 40 Paddy supply adjusting motor 41 Spindle pulley 42 Conduction belt 4 Flop - Li adjusting motor - motor (peripheral speed adjusting motor - motor) 44-flop - Li adjusting means (peripheral speed adjusting unit) 45 Fukujikupu - Li

Claims (1)

[Claims] 1. A depletion rate calculated by a depletion rate sensor 24 or a detected load current value of a main motor 26 for driving a hulling roll is compared with a set reference depletion rate or a set reference load current value. A hulling device for automatically adjusting the gap between the hulling rolls 9 and 9, comprising a moisture meter 29 for detecting the moisture of the hulls supplied to the hulling rolls 9, 9 or a moisture for setting a moisture value. The setting switch, the paddy supply valve opening sensor 31 for detecting the opening of the paddy supply adjusting valve 30 supplied to the paddy rolls 9, 9, and the paddy supply adjusting module for adjusting the opening / closing of the paddy supply adjusting valve 30. -Ta 35
And a peripheral speed adjusting means 44 for adjusting the peripheral speed of the hulling rolls 9 and 9, and a rotation speed of the hulling rolls 9 and 9 in relation to the moisture information in the moisture meter 29 or the moisture setting switch. An adjusting device for a hulling roll, which comprises a peripheral speed adjusting command signal output means for adjusting the speed in a related manner.