JPH0494739A - Controlling device for rice husking sorting machine - Google Patents

Abstract

PURPOSE:To stably perform rice husking sorting operation by changing over a load controlling means for adjusting the load of a husking roller driving means into a controlling means for controlling a husking ratio when the husking ratio being the ratio of paddy and unpolished rice of returned grain reaches the prescribed ratio or more. CONSTITUTION:When a starting switch is turned ON, the gap of husking rollers 32, 32 is set to the initial gap. A paddy supply controlling valve 53 is opened in prescribed aperture and rice husking operation is started. When prescribed grain is stored in a mixing hopper 18a, a stop valve 38 is opened in the prescribed rate and sorting operation is started. When grain of prescribed amount or more is supplied to the rocking-up side or the rocking-down side of a rocking sorting plate and an ordinary sorting state is obtained, the ratio of paddy and unpolished rice of grain discharged from a paddy sorting region in the rocking-down side of the rocking sorting plate is detected by a husking ratio detector 42. This detected ratio is compared with the reference husking ratio of returned grain. When the detected ratio is proper, load control is changed over into husking ratio control. When load control is changed over into husking ratio control, it is compared by the detection information of a detector 56 for the amount of returned grain whether the supply amount of a paddy supply controlling valve 53 is proper. This paddy supply controlling valve 53 is opened and closed by the command sent to a paddy supply controlling motor 54.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a hulling sorter equipped with a swinging sorting device that sorts mixed rice of paddy and brown rice using a swinging sorting plate having a dehulling part and sorting unevenness. This is related to the machine, and more specifically, it is based on the load current control based on the load current value of the motor that drives the dehulling roll to determine the gap between the dehulling rolls, and the removal rate of the scraped rice that has been rubbed off by the dehulling roll. The present invention relates to a control device for a rice hulling sorter equipped with a swing sorting device, which attempts to appropriately switch to dehulling rate control.

[Problems to be solved by the prior art and the invention] A devolatilization section that removes the hulls, a wind selection section that can wind-select the fallen rice from the husking section, and a wind-selection section that converts the mixed rice after wind-selection into paddy and brown rice. In a hulling sorter equipped with a mixed rice sorting device such as an oscillating sorting device and a grain conveying device, the gap between the dehulling rolls in the dehulling section is adjusted by the load on the driving means that drives the dehulling rolls. Some machines have a load control means that adjusts in relation to fluctuations and a dehulling rate control means that controls in relation to the dehulling rate of the scraped rice scraped off by the dehulling rolls.

This invention attempts to smoothly perform the switched devolatilization rate control by performing the switching from load control to devolatilization rate control in a timely manner at an early stage when the hulling and sorting work is stable.

[Means to solve the problem]

The technical means of the present invention for solving such technical problems is to provide a dehulling section 1 for removing the rice hulls. The wind selection section 2 can wind-select the fallen rice from the culm section 1, and the mixed rice after wind selection is processed into paddy.
In a hulling sorter equipped with a mixed rice sorting device 3 for sorting into brown rice and a grain conveying device, the spacing adjustment 31 of the dehulling rolls in the dehulling section 2 is controlled by the load on the driving means for driving the dehulling rolls 32, 32. It has a load control means that adjusts in relation to fluctuations, and a devolatilization rate control means that controls in relation to the dehulling rate of the washed rice that has been made into paste by the dehulling roll 32.32, and from this load control means Switching to the devolatilization rate control means is performed using the swinging sorting device 3.
Paddy characterized in that the dehulling rate, which is the ratio of paddy to brown rice of the reduced grains flowing out of the unhulled rice sorting section and returned to the dehulling section 1, reaches a predetermined specific weight. This is the configuration of the control device for the sliding sorter.

[Function and effect of the invention]

The gap control of the dehulling rolls is switched from load control to dehulling rate control in relation to the fact that the dehulling rate of the grains flowing out of the fine sorting area of the oscillating sorting plate 4 has reached the appropriate dehulling rate. In other words, the process is carried out after confirming that the paddy/brown rice ratio in the fine sorting area of the oscillating sorting plate 4 has reached a predetermined ratio and the sorting condition has stabilized, so that the gap & [Ii between the subsequent dehulling rolls can be reduced. ,
This enables stable hulling and sorting work.

〔Example〕

Embodiments of the invention shown in the drawings will be described below.

First, the configuration of the embodiment will be explained.

This hulling and sorting machine consists of a dehulling section 1 that performs the hulling work;
It is composed of a wind sorting section 2 that wind-sorts the rice that has been washed away from the rice, and a swinging sorting device 3 that sorts the mixed rice after wind selection in the wind sorting section 2. Further, the structure is such that a sculling part 1 is placed on the front upper side of the wind selection part 2, and a swing sorting device 3 is placed on the rear upper side of the wind selection part 2.

Reference numeral 4 denotes a swinging sorting plate of the swinging sorting device 3, which has unevenness for sorting formed on its surface, and the supply side 5 where the negative side is higher.
．． The opposite side is the low discharge side 6, one high side in the vertical direction perpendicular to the horizontal direction connecting the supply side 5 and the discharge side 6 is shaken, and the opposite low side is shaken. Lowering side 8
As such, the swing sorting plate 4 is configured to be inclined in both the vertical and horizontal directions. 9 is a rocking side plate, 10 is,
The swinging side plate 11 is a supply side plate.

An intermediate part of an inclination adjustment rod 13 is pivotally supported on the upper part of the support body 12 of the wind selection section 2, and one end of this inclination adjustment rod 13 is supported by an extensible and retractable inclination adjustment means 14 so as to be vertically movable. There is. The lower end of a swinging arm 15.15 is pivotally supported at the other end of the inclination adjustment rod 13, and the lower end of the other swinging arm 15.15 supporting the swinging side of the swinging sorting plate 4 is pivotally supported. The upper ends of the swinging arms 15°15, . . . of the swinging sorting plates 4, 4.・・・
- Connected to the side frame via a pin. Swing arm 1
When one end of the rod 16 is connected to the 5° 15 and the crankshaft 17 is connected to the other end of the rod 16, and the crankshaft 17 is rotated simultaneously by a drive source such as a motor, the swinging arm 15.15 reciprocates. The oscillating sorting plate 4.4. is attached to the upper end of the oscillating arm 15.15. ... is a configuration that swings back and forth in the W direction.

The mixed rice that has been hulled in the dehulling section 1 and wind-selected in the wind sorting section 2 is placed on the supply side 5 of the swinging sorting plate 4 and near the shaking side 7. Grain frying machine18. The mixed rice is fed through the hopper 18a9 and the distribution gutter 19. Then, the mixed rice has different grain sizes.

Depending on the specific gravity, friction coefficient, etc., heavy brown rice drifts toward the shaking side 7, while unhulled rice, which is larger and lighter than brown rice, drifts toward the shaking side 8 and is not separated in the middle. The rice is a mixture of unhulled rice and brown rice. Therefore, the brown rice partition plate 20 is placed on the discharge side 6 of the swing sorting plate 4. Paddy rice partition plate 2
By arranging 1, brown rice can be extracted from the brown rice outlet 22.
Mixed rice comes from the mixed rice outlet 23, and unhulled rice comes from the unhulled rice outlet 24.
These are the configurations taken out respectively from .

The brown rice taken out in this way is transferred to the brown rice removal gutter 25.
The brown rice is taken out of the machine through the unhulled rice aisle 26, and the unhulled rice goes through the unhulled rice aisle 27. The mixed rice is returned to the dehulling section 1 through the unhulled rice lifting machine 28 and subjected to the dehulling action again, and the mixed rice flows through the mixed rice passage 29 to the scraped rice amount @@30 of the wind sorting section 2. The mixed rice is supplied to the shaking sorting device 3 again at the mixed rice frying machine]-8 and is re-sorted.

Reference numeral 31 is a removal roll gap adjustment device that can adjust the gap between the removal rolls 32 and 32, and 33 is a removal roll gap adjustment motor that adjusts and drives the removal roll gap adjustment device 31. 34 is a load current detector that can detect the load current value of the main motor 35 that drives the dehulling rolls 31. 37 is a mixed rice amount detector that can detect the mixed rice hopper 18a.
A mixed rice hopper opening/closing motor opens and closes the opening/closing valve 38, 39 is a mixed rice hopper opening/closing detector that detects the opening/closing degree of the opening/closing valve 38, and 40 is a motor on the swinging side of the swinging sorting plate 4. A shaking-side grain detector 41 is capable of detecting whether there are more than a predetermined amount of grains on the shaking side of the shaking sorting plate 4. This is a swing-side grain detector that can detect grains. Reference numeral 42 denotes a drop-off rate detector. The unhulled rice sample path 45 can sample grains in the sorting basin on the shaking side that have been sorted, and the grains in the brown rice sorting basin on the shaking side that have been sorted by the shaking sorting plate 4 can be sampled. A brown rice sample path 46 is connected to each sample path 44, 45, 46.
The switching valves 47, 47. ... by switching means 48, 48, such as a solenoid. ... is appropriately switched, sample grains flow into the dehulling rate detector 42 from one of the sample paths, the dehulling rate is detected, and the grains after detection are returned to the mixed rice lifting machine 18. It is configured to do this. 49 is a brown rice switching valve provided in the brown rice passage 26, and 50 is a brown rice switching valve provided in the brown rice passage 2.
By switching the brown rice switching valve 49 with the brown rice switching means 51 in the communicating path 50 that communicates from the brown rice channel 6 to the mixed rice channel 29, the brown rice flows down from the brown rice channel 26 to the brown rice frying machine 52, or,
=7 The brown rice flows from the brown rice passage 26 to the mixed rice passage 29 via the communication passage 5o.

53 is a paddy supply control valve of the dehulling section 1, 54 is a paddy supply control motor that controls the paddy supply control valve 53, and 55 is
This is a paddy supply control valve opening degree detector that detects the opening degree of the paddy supply control valve 53. 56 is a reduced grain amount detector provided in the unhulled rice passage 27; 14 is an inclination adjustment means for adjusting the vertical inclination angle of the swing sorting plate 4; and 58 is an inclination adjustment means 14. There is a tilt adjustment motor that drives the adjustment,
59 is an inclination angle detector capable of detecting the inclination angle of the swinging sorting plate 4.

These load current detectors 34. Mixed rice amount detector 36, mixed rice hopper opening/closing detector 39. Shaking side grain detector 40.
Shaking side grain detector 41. Demolition rate detector 42. Paddy supply control valve opening degree detector 55. The reduced grain amount detector 56 and the inclination angle detector 59 are connected via an input interface 60 to an arithmetic control section 61 that includes a CPU having a register section, an arithmetic section, and a control section. Control unit 61
is first connected via the output interface 62 to the dewinning roll gap adjustment motor 33. Mixed rice hopper opening/closing 7-tater37. The configuration is such that a control command signal is output to the paddy supply adjustment motor 54 and the inclination adjustment motor 58.

Next, the control contents of the arithmetic control section 61 will be explained.

■When the start switch (not shown) is turned on, a control command signal for setting the initial gap of the demolition rolls 32 and 32 is output from the calculation control unit 61 to the demolition roll gap adjustment motor 33, and the demolition roll gap is adjusted. The device 31 is driven to adjust and set the gap between the dehulling rolls 32 and 32 to an initial gap of, for example, 1 mm, and an initial opening degree setting command signal is output to the paddy supply adjustment motor 54, so that the paddy supply control valve 53 is set to a predetermined value. It is opened to its fullest extent and the hulling work begins.

■Next, when the detection information of the mixed rice hopper opening detector 39 is detected and it is confirmed that the predetermined grains have accumulated in the mixed rice hopper 18a, a control command signal is output to the mixed rice hopper opening/closing motor 37. , the on-off valve 38 of the mixed rice hopper 18a is opened by a predetermined amount, grains are supplied to the oscillating sorting plate 4, and the sorting operation is started.

■Next, when it is detected that a predetermined amount or more of grains have been supplied to the swinging side grain detector 4° and the swinging side grain detector 41 of the swinging sorting plate 4 (the swinging It may be configured to detect the presence or absence of grains in the mixed grain sorting basin of the sorting plate 4.) The grains flowing out from the sorting basin on the swinging side of the swinging sorting plate 4 pass through the paddy/rice sample path 45. The de-hulling rate is sent to the de-hulling rate detector 42, where the de-hulling rate is detected, and compared with the reference reduction de-hulling rate in the arithmetic control unit 61. If the de-hulling rate is appropriate, the de-hulling roll gap control is loaded. Control can be switched to devolatilization rate control.

Note that this switching can also be applied to a system in which mixed rice is sorted using a rotary sorting tube that rotates around the horizontal axis.

■In this way, when the dehulling rate control is switched, the detection information is input from the reduced grain amount detector 56, and it is compared whether the amount supplied from the paddy supply control valve 53 is appropriate or not. If the return amount is less than or greater than the standard return amount, a paddy supply increase command signal or a paddy supply decrease command signal is output to the paddy supply regulation motor 54, and the paddy supply regulation valve 53 is opened by a predetermined amount. Alternatively, it is closed by a predetermined amount and the supply amount is adjusted.

■The above-mentioned controls from ■ to ■ are carried out, and when the grain detector 40 on the shaking side of the brown rice partition plate 20 detects a predetermined amount or more of grains, the unhulling rate detector 4 passes through the brown rice sample path 46.
The sample grains are sent to 2, and the removal rate of the brown rice sorting area of the oscillating sorting plate 4 is detected.

If the amount of paddy mixed in is within the set standard value, the brown rice aisle 26
The brown rice switching valve 49 in the brown rice passage 26 is switched to the brown rice frying machine 52 side, and the sorted brown rice is taken out of the machine. While maintaining the switched state to the communication path 50 side, a command signal is output to the brown rice partition plate adjustment motor 63, and the brown rice partition plate 20 is adjusted and moved to the shaking side by a predetermined amount.

■In addition, the grains flowing out from the sorting basin on the swinging side of the swinging sorting plate 4 are sent to the dehulling rate detector 42 via the paddy rice sample path 45, the dehulling rate is detected, and the standard reduction When the detected dehulling rate is high when compared with the dehulling rate, detection information is further inputted from the reduced grain amount detector 56 and compared with the standard returned amount, so that the detected dehulled amount becomes the standard returned amount. If the amount of reduction detected is greater, an open command signal is output to the paddy supply adjustment motor 54 to open the paddy supply adjustment valve 53 by a predetermined amount, and if the detected reduction amount is large, the inclination angle adjustment motor 58 is When the adjustment command signal is output and the vertical inclination angle of the oscillating sorting plate 4 is loosened, and the detected reduction amount is appropriate, the reference demolition rate of the demolition rate control is corrected to a predetermined amount lower. be done.

■Also. The grains flowing out of the sorting area of the oscillating sorting plate 4 are sent to the dehulling rate detector 42 via the paddy/rice sample path 45, where the dehulling rate is detected and compared with the standard reduction dehulling rate. , If the detected dehulling rate is low, the reduced grain amount detector 56 further detects the amount of dehulled grains.4. The information is input and compared with the standard return amount, and if the detected return amount is greater than the standard return amount, a close command signal is output to the paddy supply regulating motor 54, and the paddy supply regulating valve 53 is adjusted to a predetermined amount. If the detected reduction amount is small, a steep inclination adjustment command signal is output to the inclination angle adjustment motor 54, and the vertical inclination angle of the swinging sorting plate 4 is adjusted to a steep inclination. If the amount is appropriate, the reference ring release rate for the wall removal rate control is corrected to be higher by a predetermined amount.

Next, the operation of the embodiment will be explained. When carrying out the hulling operation, raw rice is supplied to the rice hopper 64 of the hull removal section 1, and each rotating part of the hulling and sorting machine is driven.

Then, the dehulling roll 32 of the dehulling section 1 is released from the paddy hopper 64.
The paddy supplied to 32 is subjected to a dehulling action, the fallen rice is wind-selected in the fallen rice wind selection path (not shown) in the wind sorting section 2 below, and the rice husks are passed through a suction fan (not shown). The mixed rice of brown rice and paddy is discharged from the dust exhaust pipe 65 to the outside of the machine, and is then dropped and supplied to a rice receiving trough (not shown), where it is fed into the mixed rice lifting machine 18. The mixed rice hopper 18a9 passes through the distribution gutter 19 to the swinging sorting plates 4, 4.・・・
・Supplied to

When the swinging arm 15.15 swings, the swinging arm 15.
15 is attached to the upper end of the swing sorting plate 4, 4.・
- is reciprocated in the W direction, and when mixed rice is supplied to this swinging sorting plate 4, heavy brown rice is shaken due to the grain size, specific gravity, and friction coefficient of the mixed rice. In addition, unhulled rice, which is larger and lighter than brown rice, drifts to the shaking side, and a mixed rice of unseparated unseparated rice and brown rice drifts to the middle part. Oscillating sorting plate 4, 4. The discharge side 6 of... is a brown rice partition plate 20. Since they are partitioned by the unhulled rice partition plate 21, brown rice is taken out from the brown rice outlet 22, mixed rice is taken out from the mixed rice outlet 23, and unhulled rice is taken out from the unhulled rice outlet 24 and sorted.

During such hulling sorting work, the load current detector 34, the mixed Jupiter detector 3G, the mixed rice hopper opening/closing detector 39. Shaking side grain detector 40. Shaking side grain detector 4]-9 Deculling rate detector 42. Paddy supply control valve opening degree detector 55. When the detection information from the reduced grain amount detector 56 and the inclination angle detector 59 is input to the arithmetic control section 61, the following control is performed.

■At the start of work, when the start switch (not shown) is turned on, the gap between the demolition rolls 32 and 32 is set to 1 mm, for example.
The paddy supply control valve 53 is opened to a predetermined opening degree, and the hulling operation is started. Next, when a predetermined amount of grains is accumulated in the mixed rice hopper 18a, the mixed rice hopper 18a opening/closing valve 38 is adjusted. is opened by a predetermined amount, and the sorting work of the swinging sorting plate 4 is started.Next, a predetermined amount or more of grains are supplied to the swinging side and the swinging side of the swinging sorting board 4, and the normal In the sorting state, the paddy/brown rice ratio of grains a flowing out from the paddy sorting basin on the swinging side of the swinging sorting plate 4 is detected by the dehulling rate detector 42, and the detected dehulling rate is the standard reduction dehulling rate. If the demolition rate is appropriate, the demolition roll gap control is switched from load control to demolition rate control. That is, after confirming that the paddy/brown rice ratio in the paddy rice sorting area on the swinging side of the swinging sorting plate 4 has reached a predetermined ratio and the sorting state is stable, the gap between the dehulling rolls is adjusted by load control to increase the dehulling rate. Since the control can be switched, the subsequent gap adjustment of the dehulling rolls can be reduced and stable hulling and sorting work can be performed.

Next, the control details of the embodiment shown in FIG. 7 will be explained.

Steps S1 in (2) to Step S4 in (2) are the same as those in FIG. 6, so their explanation will be omitted.

■Next, when a predetermined amount or more of grains are detected by the grain detector 40 on the swinging side of the swinging sorting plate 4, (step S5) the gap adjustment of the dehulling rolls changes from load control to dehulling rate control. It is switched (step S6).

- Next, the grains are detected by the swinging side a'R detector 41 of the swinging sorting plate 4, and when it is detected that more than a predetermined amount of grains have been supplied to the swinging side (step S7), Oscillating sorting plate 4
The grains that flowed from the paddy sorting basin of
is sent to a dehulling rate detector 42 via which the dehulling rate of the reduced grains is detected. Next, the detector side demolition rate is compared with the standard reduction demolition rate, and if it is within the appropriate demolition rate range, the process moves to the next step (step S8).

■Next, the detection information is input from the reduced grain amount detector 56, and it is compared whether the returned J6 grain amount is an appropriate amount with respect to the supply amount from the paddy supply control valve 53 (step S8
), if it is less than or greater than the standard return amount, a paddy supply increase command signal or a paddy supply decrease command signal is output to the paddy supply adjustment motor 54, and the paddy supply adjustment valve 5
3 is opened by a predetermined amount or is opened by a predetermined amount to adjust the supply amount.

Note that the other details are the same as the control contents shown in FIG. 6, so the explanation will be omitted.

In this embodiment, after the grains are supplied to the shaking side portion of the swinging sorting plate 4 and the state is in a substantially continuous operation state, load control is switched to devolatilization rate control. This allows stable volatile control.

Next, FIGS. 8 and 9 will be explained.

18a is a mixed rice hopper that is attached to the discharging part of the mixed rice frying machine 18 so as to be able to move downward by 1", and the mixed rice hopper 1
An opening/closing valve 38 is provided at the bottom of the opening/closing valve 8a, and a spring 66 acting on the opening/closing valve 38, which always acts on the open side, causes the mixed rice hopper opening/closing motor 37 to rotate forward or backward. This configuration opens and closes the on-off valve 38. 67 is a support attached to one end of the mixed rice lifting machine 18;
At the same time, an adjustment bolt 68 and a spring 69 for supporting the mixed rice hopper 18a are attached. In this way, the on-off valve 38 is equipped with a spring 66 that always acts on the open side.
Since these are linked, the on-off valve 38 is pressed toward the opening side, and the opening/closing operation becomes accurate.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway side view, FIG. 2 is a front view, and FIG. 3 (A,
) and FIG. 3(B) are cutaway side views, FIG. 4 is a perspective view, FIG. 5 is a block circuit diagram, FIGS. 6 and 7 are flowcharts, and FIG. 8 is a side view. FIG. 9 is a cutaway side view. Description of symbols: De-walling section swinging sorting device supply side swinging side 2 wind sorting section 4 swinging sorting plate 6 discharge side 8 swinging side''-3 8a swinging side plate 10 supply side plate 12 inclination adjustment means 14 swinging Arm 16 Crankshaft 18 Mixed rice hopper 19 Brown rice partition plate (partition plate) Paddy rice partition plate 22 Mixed rice outlet 24 Brown rice removal gutter 26 Paddy rice passage 28 Mixed rice passage 3゜De-hulling roll gap adjustment device De-hulling roll De-hulling roll gap Adjustment motor load current detector 35 Mixed rice amount detector Mixed rice hopper opening/closing motor opening/closing valve Mixed rice hopper opening/closing detector Swinging side plate support Inclination adjustment means rod Mixed rice hoisting machine Distribution gutter Brown rice outlet Unhusked rice outlet Brown rice passage Unladed rice Grain lifting machine Sliding fallen rice receiving trough Main motor Swinging side grain detector Swinging side grain detector Dehulling rate detector Sliding rice sample path Brown rice sample path Switching means Communication path Brown rice lifting machine Paddy supply Adjustment motor Paddy supply adjustment Opening degree detector Reductive grain amount detector 58 Inclination angle detector Input interface Arithmetic control unit output interface Brown rice partition plate Adjustment motor Paddy hopper 65 Spring 67 Adjustment pole 1-69 Sliding rice receiving trough Paddy rice sample path Switching valve Brown rice switching valve Brown rice switching means Paddy supply adjustment valve Incline adjustment motor Dust exhaust pipe support spring

Claims (1)

[Claims] (1) Dehulling section 1 that removes the hull, wind sorting section 2 that can wind-select the rice that has been removed from the hulling section 1, and a mixed rice sorting device that sorts the mixed rice after wind selection into paddy and brown rice. 3 and a grain conveying device, a load for adjusting the de-roll gap adjustment 31 of the dehulling section 2 in relation to load fluctuations of a drive means for driving the de-defoliating rolls 32, 32; It has a control means and a removal rate control means for controlling the removal rate of the scraped rice rubbed off by the removal rolls 32, 32, and switches from the load control means to the removal rate control means. This is related to the fact that the dehulling rate, which is the paddy/brown rice ratio of reduced grains flowing out of the paddy/rice sorting section of the oscillating sorting device 3 and returned to the dehulling section 1, has exceeded a predetermined ratio. Characteristic control device for rice huller sorting machine.