JPH04330975A - Controlling device for rocking sorting device - Google Patents

Abstract

PURPOSE:To rapidly take out sorted grain by regulating the number of rocking revolutions of a rocking sorting plate at a time for starting or finishing sorting to low or high number of revolutions suitable for work thereof in a rocking sorting device for sorting paddy and unpolished rice. CONSTITUTION:A rocking sorting plate 5 on which unevennesses for sorting are formed is constituted so that a supply side 6 of one side is raised and a discharge side 7 of the opposite side is lowered to tilt the rocking and sorting plate in the lateral direction. Moreover, a rocking up side 8 being one hand of the longitudinal direction orthogonal to the lateral direction is raised and a rocking down side 9 of the opposite side thereof is lowered to tilt two faces in the longitudinal and lateral directions. In the case of reciprocating this rocking sorting plate 5 to the oblique upper and lower parts in the longitudinal direction and sorting grains, the rocking sorting plate 5 is reciprocated at the number of revolutions lower than the number of rocking revolutions at a time of work in the case of starting work. The same is reciprocated at the number of revolutions higher than the number of revolutions at a time of work in the case of finishing work.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a swing sorting device for sorting mixed grains such as paddy and brown rice.

0002

[Prior Art] A board surface is formed with unevenness for sorting, and mixed grains such as paddy and brown rice are fed by slanting horizontally from a high supply side on one side to a low discharge side on the opposite side. In the process of flowing from the side to the discharge side, while making diagonal up and down reciprocation in the vertical direction perpendicular to the horizontal direction, brown rice grains with high specific gravity are placed on the high shaking side, and paddy grains with low specific gravity are placed on the low shaking side. In the middle of these, there is a swing sorting device that distributes and sorts the mixed grains.

0003

[Problem to be solved by the invention] In the case of such a swinging sorting device, since the swinging sorting plate is rotated at the same number of rotations from the start of work to the end of work, it is difficult to remove unsorted items at the start of work. The mixed grains are distributed in the distribution area of brown rice grains with high specific gravity, and it takes time to take out the brown rice grains from the brown rice area outside the machine. There was a problem in that the movement to the swinging side was slow and it took time to complete the work. Therefore,
This invention attempts to eliminate the drawbacks of conventional devices by setting the oscillating rotational speed of the oscillating sorting device to a low or high rotational speed suitable for the work at the start of sorting and at the end of sorting. be.

0004

[Means for Solving the Problems] In order to solve the problems of the prior art, the present invention takes the following technical measures. That is, in the present invention, the swinging sorting plate 5 on which the unevenness for sorting is formed is horizontally inclined with one side of the supply side 6 being high and the opposite side of the discharge side 7 being low. The swinging side 8, which is one of the orthogonal vertical directions, is made higher and the swinging side 9, which is the opposite side, is lowered, and the two vertical and horizontal directions are
Both surfaces are inclined, and when grains are sorted by vertically reciprocating the oscillating sorting plate 5 diagonally up and down, the reciprocating motion is performed at a rotational speed lower than the oscillating rotational speed during work at the start of work. The present invention is a control device for an oscillating sorting device, which is characterized in that it reciprocates at a higher rotational speed than the rotational speed during the work at the end of the work.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention shown in the drawings will be described below. First, to explain the configuration of the embodiment, this hulling and sorting machine consists of a hulling section 1 that removes the hulls, a wind selection section 2 that wind-selects the rice that has been removed from the hulling section 1, and a wind-selection section 2 in the wind-selection section 2. It is composed of a swinging sorting device 3 and a grain lifting section 4 that sort out the rice that has fallen off after wind sorting. The huller 1 is placed above the winnowing section 2, the grain lifting section 4 is placed in the middle of the machine, and the swing sorting device 3 is placed at the rear of the machine.

Reference numeral 5 denotes a swinging sorting plate of the swinging sorting device 3, and its plate surface is formed with unevenness for sorting, with one side being a high supply side 6 and the other side being a low discharge side 7. Then,
The swinging sorting plate 5 is moved in the vertical direction, with one high side in the vertical direction perpendicular to the horizontal direction connecting the supply side 6 and the discharge side 7 being the swinging side 8 and the opposite low side as the swinging side 9. Both the two horizontal surfaces are inclined. 10 is a swinging side plate, 11 is a swinging side plate, and 121 is a supply side plate.

The lower ends of the swinging arms 13, 13 are pivotally supported on the machine body, and the upper ends of the swinging arms 13, 13 are connected to the swinging sorting plates 5,
The rod 14 is connected to the frame body on the side 5, .
When the crankshaft 15 is fitted to the other end and the crankshaft 15 is rotated by a drive source such as a motor, the swinging arms 13,1
3 swings back and forth, and the swinging sorting plates 5, 5, . . . swing back and forth in the W direction.

Mixed rice that has been hulled in the hulling section 1 and wind-selected in the wind-selecting section 2 is placed on the supply side 6 of the swinging sorting plate 5 and near the shaking-up side 8. , the mixed rice lifting machine of the grain lifting section 4, the mixed rice hopper 16, and the distribution gutter 17. Then, depending on the grain size, specific gravity, friction coefficient, etc. of the mixed rice, heavy brown rice drifts to the shaking side 8, and unhulled rice, which is larger and lighter than brown rice, flows to the shaking side 9. The mixed rice of unseparated paddy rice and brown rice flows in the middle part. Therefore, by arranging the brown rice partition plate 18 and the unhulled rice partition plate 21 on the discharge side 7 of the oscillating sorting plate 5, brown rice can be removed from the brown rice outlet, mixed rice from the mixed rice outlet, and hulled rice from the unhulled rice outlet. The brown rice taken out in this way is taken out of the machine by a brown rice lifting machine 20, and the unhulled rice is returned to the hulling unit 1 by the hulling machine of the grain lifting unit 4, where it is hulled again. The mixed rice is again fried by the mixed rice frying machine of the grain lifting section 4 and is re-sorted by the oscillating sorting device 4.

Reference numeral 21 denotes a swinging rotation speed adjusting device for adjusting the swinging speed of the swinging sorting plate 5 in the vertical direction, and reference numeral 22 denotes a swinging rotation speed adjusting motor for adjusting the swinging speed adjusting device 21 to increase or decrease. 23 is a vertical inclination adjusting means for adjusting the vertical inclination angle of the oscillating sorting plate 5, 24 is a vertical inclination adjusting motor, and 25 is a vertical inclination adjustment motor for detecting the vertical inclination of the oscillating sorting plate 5. It is a tilt detector, and 26 is a grain distribution detector that detects the distribution state of grains to be sorted on the oscillating sorting plate 5. These vertical inclination detector 25, grain distribution detector 26, operation switch 27, stop switch 28, husking rate sensor 29, hulling rolls 30, 3
A load current detector 32 detects the load current value of the main motor 31 that drives the main motor 31, and a shutter opening detector 34 detects the opening of the paddy supply control valve 33. The shutter opening adjustment motor 36 and the roll gap adjustment motor 37 are connected to each other from the arithmetic control section 35 through an output interface and a drive circuit.
, a control command signal is output to the oscillating rotation speed adjusting motor 22.

Next, the control contents of the arithmetic control section 35 will be explained. ■When the power switch (not shown) is turned on and the operation switch 27 is turned on, the main motor 31 drives each rotating part of the hulling and sorting machine, and the hulling rolls 30, 30
A control command signal is output to the gap adjustment means (not shown), the hulling rolls 30, 30 are adjusted to the initial gap, and the initial gap adjustment of the hulling rolls 30, 30 is started. After a predetermined period of time, a low rotation speed adjustment command signal is output to the swing rotation speed adjustment motor 22, and the swing sorting plate 5 starts swinging at a low rotation speed, and then the shutter of the hulling section 1 is opened. An opening adjustment motor initial opening adjustment command signal is output, and the paddy supply control valve 33 is adjusted to the initial opening. ■Next, after a predetermined period of time after the initial opening adjustment of the paddy supply control valve 33 is completed, an adjustment command signal to the working standard rotation speed is sent to the swing rotation speed adjustment motor 22.
The oscillating rotational speed adjusting device 21 is adjusted to the working standard rotational speed, and the oscillating sorting plates 5, 5, . . . perform sorting work while maintaining the standard distribution of grains. ■Next, when the stop switch 28 is turned on, the hulling rolls 30, 30
It stops when the gap is opened by a predetermined amount, and the paddy supply control valve 3
3 is closed and the supply of paddy to the hulling rolls 30, 30 is stopped, and at the same time, a high-speed rotation adjustment command signal is output to the swing rotation speed adjustment motor 22, and the swing rotation speed adjustment device 21 is set to high speed. The rotating selection plates 5, 5, . . . swing at high speed for a predetermined period of time, and the main motor 31 stops.

Next, FIG. 4 will be explained. Each of the multistage swinging sorting plates 5, 5, ... has a swinging side 8 in the vertical direction.
, Shaking side grain detectors 38, 38, ..., Shaking side grain detectors 39, 39 capable of detecting the grain layer thickness on the shaking side 9
,... are provided, and the shaking side grain detectors 38, 38
, ... or if the grain layer thickness of any one of the swinging side grain detectors 39, 39, ... exceeds the standard layer thickness,
An adjustment command signal is output from the calculation control unit (not shown) to the inclination adjustment motor 24, and the inclination adjustment means 23 is adjusted to the steep angle side or the gentle slope side, and the vertical direction of the swinging sorting plate 5 is adjusted to the layer thickness decreasing side. The tilt adjustment is controlled and it is possible to sort while maintaining the sorting accuracy. In addition, the shaking side grain detectors 38, 38
, ... and the shaking-side grain detectors 39, 39, ..., when an excess of the standard layer thickness is detected by both the shaking-side grain detectors 39, 39, ..., the It is a regulated configuration.

Next, FIG. 5 will be explained. The supply amount adjustment valve 40 of the mixed rice hopper 16 is configured to be able to be opened and closed by a supply amount adjustment motor 41, and multi-stage swinging sorting plates 5, 5, . . .
The shaking side grain detectors 38, 38, . . . and the shaking side grain detectors 39, 39, . Particle detector 38,3
8, ... or when the grain layer thickness of any one of the shaking side grain detectors 38, 38, ... grain detectors 39, 39, ... is thicker or thinner than the standard layer thickness, An adjustment command signal is output from the arithmetic control unit (not shown) to the supply amount adjustment motor 41, and the supply amount is adjusted to decrease or increase so that the supply amount adjustment valve 40 returns to the standard layer thickness, thereby maintaining the sorting accuracy. It is something that can be sorted out. In addition, the shaking side grain detectors 38, 38, ... or the shaking side grain detector 3
If thicker and thinner detection results are simultaneously detected with respect to the standard layer thickness from 9, 39,..., the thinner layer thickness will affect the sorting accuracy as paddy grains will be mixed into the brown rice. Since the degree of the layer thickness is large, the adjustment control is performed with priority given to the detection result of a thinner layer thickness.
9, . . . are both out of the control reference value, the detection results of the shaking-side grain detectors 38, 38, . Next, FIGS. 6 and 7 will be explained. The sorting state of the oscillating sorting plate 5 is detected, or the boundary between the brown rice basin and the mixed rice basin is detected by the sorting detector 42, and based on the detection result of the sorting detector 42, an arithmetic control unit (not shown) ) outputs a control command signal to a brown rice partition plate adjustment motor (not shown) to adjust the movement of the brown rice partition plate 18 to the shaking side 8 or the shaking side 9, and the brown rice partition plate 18 is partitioned by the brown rice partition plate 18. When removing brown rice from the machine, if the brown rice partition plate 18 does not move within a predetermined time, or if it moves less than a predetermined number of times within a predetermined time, it is determined that the sorting is in a stable state, and the switching valve 43 The switching adjustment motor 44 rotates the brown rice out of the machine, and until the sorting is stabilized, the brown rice partitioned by the brown rice partition plate 18 is switched to the side where it joins the mixed rice by the switching valve 43. If the structure is such that the rice is returned to the oscillating sorting plate 5 and then re-sorted by the oscillating sorting plate 5, the sorting accuracy of brown rice is improved.

Next, FIG. 8 will be explained. 45 is a detector for detecting the sorting state of the swinging sorting plate 5, and this detector 45 includes a transmission type or reflection type optical detector 46 provided on the upper side of the grain passing position, and a high frequency It consists of a detector 47, and an optical detector 46 detects paddy grains, brown rice,
The high-frequency detector 47 distinguishes between green rice and rice grains.
This detector 46 determines brown rice and green rice.
By calculating and processing the detection results of 47 by an arithmetic control unit (not shown), each grain of paddy grain, brown rice, and green rice is detected. Based on the detection results of such a detector, when the green rice ratio is high, the horizontal inclination angle of the oscillating sorting plate 5 is automatically adjusted to be steeper, or the vertical inclination of the oscillating sorting plate 5 is automatically adjusted to be steeper. If the configuration is such that the angle is automatically adjusted to be tighter, or the separation plate 18 is automatically adjusted to the shaking side 8, or the feed amount is automatically adjusted to increase, the sorting work can be done while increasing the sorting efficiency. can do.

Next, FIGS. 9 and 10 will be explained. The swinging plate 11 of the swinging sorting board 5 is provided with an optical or piezoelectric rice grain detector 48 and a piezoelectric rice husk detector 49. will be distributed on the shaking side 9 from the rice grains, and when rice husks are distributed, the piezoelectric rice husk detector 49 will not turn on because the specific gravity of the rice husks is light, and there will be no rice husks mixed in. Swinging side 9
When rice grains are distributed in the rice husks, the grains have a higher specific gravity than the rice husks, so the grains are shaken down by the rocking motion, so that the rice husk detector 49 is turned on at regular intervals. It can be determined whether or not rice husks are mixed in the mixed rice. In this way, when the rice husk detector 49 detects the presence of rice husks, the sorting air adjustment device 51 of the fallen rice wind sorter 50 is adjusted to increase the sorting air volume by the air volume adjustment motor 52, and the rice husks are removed from the fallen rice. It is intended to remove.

Next, FIGS. 11 to 13 will be explained. The green rice distribution area of the oscillating sorting plate 5, that is, the green rice distribution area between the brown rice distribution area and the mixed rice distribution area, has a blue rice distribution area that has a color detection function that can detect the presence or absence of green rice and/or the distribution width. A rice detector 53 is provided, and when this green rice detector 53 detects green rice at a predetermined ratio or more or a predetermined width or more, a solenoid 54 is activated by a command signal from an arithmetic and control unit (not shown), and the green rice distribution area is The on-off valve 55 of the take-out gutter is switched to the out-of-machine take-out side for a predetermined period of time, green rice is taken out of the machine, and the on-off valve 55 is closed after a predetermined time to set the grain circulation state. Decrease in sorting efficiency due to circulation can be prevented. Note that the on-off valve 55 may be configured to be opened and closed manually.

Next, the operation of the embodiment will be explained. When carrying out the hulling work, raw rice is supplied to the rice hopper 56 of the hulling section 1, and the power switch (not shown) and operation switch 27 are turned on to drive each rotating part of the hulling and sorting machine. Then, the hulling rolls 30, 30 of the hulling section 1 are removed from the rice hopper 56.
The rice supplied to the machine is hulled, the rice that has been washed away is washed in the wind sorting section 2, the rice husks are discharged outside the machine from the dust exhaust pipe, and the mixed rice of brown rice and paddy after sorting is sent to the grain lifting section 4. The rice is fed to the oscillating sorting plates 5, 5, . . . through a mixed rice frying machine.

When the swinging arms 13, 13 swing, the swinging sorting plates 5, 5,... swing back and forth in the W direction, and when the mixed rice is supplied to the swinging sorting plates 5, the mixed rice is Depending on the grain size, specific gravity, and friction coefficient, heavy brown rice drifts toward the shaking side 8, while unhulled rice, which is larger and lighter than brown rice, drifts toward the shaking side 9. In the middle, a mixture of unseparated paddy rice and brown rice drifts. The discharge side 7 of the swinging sorting plates 5, 5, ... is a brown rice partition plate 18 and an unhulled rice partition plate 1.
9, brown rice is taken out from the brown rice outlet, mixed rice is taken out from the mixed rice outlet, and unhulled rice is taken out and sorted from the unhulled rice outlet.

The rice hulling sorting work is carried out in this manner. At the start of the work, a low speed rotation adjustment command signal is output from the calculation control unit 35 to the swing rotation speed adjustment motor 22, and the swing rotation is controlled. The number adjusting device 21 is adjusted to the low speed rotation side,
Since the oscillating sorting plate 5 rotates at a low speed, the mixed grains supplied from the oscillating side 9 of the supply side 6 flow into the brown rice distribution area, which is the oscillating side 8, as shown in FIG. 2(1). This prevents paddy grains from getting mixed into the brown rice, and shortens the process of re-sorting the grains distributed in the brown rice area by merging them with the mixed grains. -ta 22
A high-speed rotation adjustment command signal is output from the calculation control unit 35, the oscillating rotation speed adjusting device 21 is adjusted to the high-speed rotation side, and the oscillating sorting plate 5 is oscillating at high speed. As shown in FIG. 2 (2), the mixed grains distributed in a part of the shaking sorting plate 5 quickly flow into the brown rice distribution basin, which is the shaking side 8, and the grains distributed in the brown rice basin are By manually or automatically adjusting the brown rice partition plate 18 from the grains, the brown rice can be separated from the mixed grains and taken out, thereby shortening the processing time for completing the work.

[0019]

Effects of the Invention When performing sorting work using the oscillating sorting plate 5, at the start of the work, the oscillating sorting plate 5 is oscillating at a low speed, so that the mixed grains supplied to the supply side 6 are shaken up. side 8
It is difficult to flow into the brown rice distribution basin, which prevents the contamination of low-density paddy grains into the brown rice, and shortens the process of re-sorting the brown rice distributed in the brown rice distribution basin by combining it with mixed grains. At the end of the work, the swinging sorting plate 5 is swinging while rotating at a high speed, so that the grains distributed on a part of the swinging sorting board 5 supplied to the supply side 6 are on the shaking side 8. By manually or automatically adjusting the brown rice partition plate 18, the grains can be separated from the mixed grains and removed from the grains distributed in the brown rice basin by quickly flowing to the distribution basin of brown rice, which has a high specific gravity. can be shortened.

[Brief explanation of drawings]

[Figure 1] Overall cutaway side view and side view of main parts

[Figure 2] Perspective view of main parts

[Figure 3] Block circuit diagram

[Figure 4] Cutaway side view

[Figure 5] Cutaway side view

[Figure 6] Plan view and front view

[Figure 7] Flowchart

[Figure 8] Perspective view

[Figure 9] Perspective view

[Figure 10] Side view

[Figure 11] Perspective view

[Figure 12] Front view

[Figure 13] Side view

[Explanation of symbols]

1. Husking section 2 Wind selection department 3. Oscillating sorting device 4 Grain frying department 5. Oscillating sorting plate 6 Supply side 7 Discharge side 8 Rocking side 9 Swinging side 10 Rocking side plate 11 Swinging side plate 12 Supply side plate 13 Swing arm 14 Rod 15 Crankshaft 16 Mixed rice hopper 17 Distribution gutter 18 Brown rice partition board 19 Paddy rice partition plate 20　Brown rice grain frying machine 21 Rocking rotation speed adjustment device 22 Swing rotation speed adjustment motor 23 Vertical tilt adjustment means 24 Vertical tilt adjustment motor 25 Vertical tilt adjustment detector 26 Grain distribution detector 27 Operation switch 28 Stop switch 29 Stripping rate sensor 30 Husking roll 31 Main motor 32 Load current detector 33 Paddy supply control valve 34 Shutter opening detector 35 Arithmetic control section 36 Shutter opening adjustment motor 37 Roll gap adjustment motor 38 Shaking side grain detector 39 Swinging side grain detector 40 Supply amount control valve 41 Supply amount adjustment motor 42 Sorting detector 43 Switching valve 44 Switching adjustment motor 45 Detector 46 Optical detector 47 High frequency detector 48 Rice grain detector 49 Rice husk detector 50　Surirakumai style selection department 51　Selective air adjustment device 52 Air volume adjustment motor 53 Green rice detector 54 Solenoid 55 On-off valve 56 Paddy hopper

Claims (1)

[Claims] Claim 1: A swinging sorting plate 5 on which unevenness for sorting is formed is tilted in the horizontal direction with one supply side 6 high and the opposite side discharge side 7 low, and at right angles to the horizontal direction. The swinging side 8, which is one of the vertical sides of the screen, is set high and the swinging side 9, which is the opposite side, is set low, so that both the vertical and horizontal sides are inclined, and the swinging sorting plate 5 is vertically When sorting grains by applying diagonal up-and-down reciprocating motion, at the start of work, the machine reciprocates at a lower rotational speed than the rocking rotational speed during work, and at the end of work, it reciprocates at a higher rotational speed than the working rotational speed. A control device for an oscillating sorting device characterized by moving.