JPH0667486B2 - Hulling machine sorting device - Google Patents

Description

Description: “Industrial field of use” The present invention relates to a sorting device for a grain huller that separates and sorts brown rice from mixed rice that has been detreated by derolling.

"Prior Art" Conventionally, as shown in Japanese Utility Model Laid-Open No. 58-186848, the amount of mixed rice supplied to the sorting unit is detected, and the direction of extracting brown rice from the sorting unit is automatically switched to the machine outside or the circulation side. There was technology.

[Problems to be Solved by the Invention] In the conventional technology, even when the supply of mixed rice is reduced at the end of the work, the operation is automatically switched to the operation of extracting the brown rice to the circulation side, and the brown rice is extracted to the outside of the machine. It can prevent the paddy from getting mixed in,
Although the handling operation at the end of the work was simplified, when the work was started, the operator was provided with a setter to manually set the reference de-rate ratio value necessary for the de-rolling ratio automatic control of the derolling for hulling. After checking the hulling condition visually and operating the setting device, it is necessary to check the hulling condition again and repeat the setting device operation after a lapse of a predetermined time, which makes manual setting at the start of automatic control extremely troublesome. However, there is a problem that the operation at the start of work cannot be easily simplified.

"Means for Solving the Problem" Therefore, the present invention is provided with a removal rate sensor that detects the removal rate of the mixed rice that has been removed by the derolling, and automatically sets the derolling gap based on the detection value of the sensor. In the structure which comprises a rotary sorting cylinder which is continuously rotated in one direction while controlling the removal rate and rotating the sorting cylinder to take out the brown rice in the barrel to a brown rice receiving trough, the automatic control of the clearance of the derolling roll. Provided with a control operation switch to start or interrupt
A controller that stores a release rate sensor value when the switch is turned on as a reference release rate value and automatically performs clearance control of the release rate roll by comparing the reference release rate value and the release rate sensor detection value. And a brown rice switching valve that appropriately switches the sending direction of the brown rice taken out to the receiving gutter to the take-out side on the outside of the machine or the circulation side to be returned to the sorting cylinder, and the mixed rice sorting amount in the sorting barrel is sensed. A sorting amount sensor is provided, and when the mixed rice in the sorting cylinder detected by the sorting amount sensor decreases below a predetermined value, the switching valve is automatically switched to the circulation side.

"Working" Therefore, it is possible to simplify the structure and work by omitting the conventional manual reference rate setting device. Also, the manual setting of the standard reference rate setting is unnecessary, and the Manual setting at the start of control such as removal rate setting operation becomes extremely easy, and the operation at the start of work can be easily simplified, improving the operability of the entire control from the start to the end of the hulling work and the paddy. It is possible to easily maintain proper control of the sliding selection.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. First
The figure is an overall cross-sectional view of the grain huller showing essential parts, and FIG. 2 is an overall view of the same appearance. In the figure, (1) is a huller, (2) is a hopper for throwing in paddy, (3) and (4) are a pair of derollers that are provided under the hopper (2), and (5) is the hopper. (2) A shutter for opening and closing the lower part, (6) a deployment lever for urgently opening each of the rolls (3), (4) by manual operation, and (7) for adjusting the clearance rate for adjusting the gaps of (3) and (4). It is a step drive type de-motor which is a motor.

In the figure, (8) is a wind selecting section on which the hulling section (1) is mounted, and removes small rice from brown rice taking out gutter (9) and brown rice conveyor (10) and brown rice falling into the gutter (9). Karato (11)
And the derolling rolls (3) (4) through the small rice pick-up gutter (12) and the small rice conveyor (13) that carry the small rice out of the machine, and the grain scattering plate (14) and the flow grain plate (15). ) Sliding down rice pick-up gutter (16) and sliding down rice conveyer (17) facing down and receiving scraped rice (brown rice and paddy), and puddle picking down gutter (18) that receives the peat separated from said sliding down rice. And a dust conveyor (19) and a dust suction fan (20) for discharging the rice husks separated from the scraped rice to the outside of the machine.

In the figure, (21) is placed on the wind selecting section (8) and the hulling section (1)
As shown in FIG. 3, there are sorting cylinders (22) and (23) which are upper and lower sorting cylinders which continuously rotate in one direction to separate brown rice and paddy, and each of the above-mentioned cylinders. (22) (23)
Supporting rolls (24)… (25) that rotatably support each
..., a mixed rice supply tank (26) provided outside one end of the sorting cylinder (22), a supply conveyor (27), a re-graining conveyor (28), and a brown rice receiving conveyor (which are inserted in the upper sorting cylinder (22). 29), a brown rice receiving conveyor (30) which is inserted into the lower sorting cylinder (23), and a rice selecting machine (31) which is provided between the upper and lower brown rice receiving conveyors (29) (30) to connect them in series. The chute (32) for communicating the paddy discharge end of the upper sorting cylinder (22) with the hopper (2) and the re-graining conveyor (28) are connected to the lower sorting cylinder (23).
To the rice picking gutter (16) by sliding down the mixed rice discharge end of the lower selection tube (23) to the chute (33) to communicate with the rice picking gutter (16), and the brown rice receiving conveyor (30) to the brown rice picking gutter (9). ) Is connected to the chute (35).

Then, a brown rice lifting conveyor (36) for communicating the lower end side with the brown rice conveyor (10), and the scraped rice conveyor (17)
And a sorting rice lifting conveyor (37) that communicates the lower end side to the machine. The sorting rice lifting conveyor (37) is connected to the upper end of the selection rice lifting conveyor (37) in the supply tank (26). ), The bypass pipe (39) is a bypass path that divides the scraped rice from the hulling section (1) and the return mixed rice from the sorting section (21) to join and reach the sorting section (21). ) The upper end is connected to the connection pipe (38), and the lower end of the bypass pipe (39) is connected to the joint portion (40) between the brown rice conveyor (17) and the lifting conveyor (37). ) As in (37), install the bypass pipe (39) along the outside of the machine.

4 to 5 are enlarged cross-sectional views of the bypass pipe (39), in which the container (41) which is a hopper for measuring the weight of the flow-down is installed in the bypass pipe (39), and the bypass pipe (39) is provided on both sides of the container (41). The overflow gutter (42) (42) is integrally configured, and the container (41) is formed.
While keeping the mixed rice constantly filled in, the excess mixed rice is allowed to leak into the overflow gutter (42) from the upper edge of the container (41), and the grain outlet ( 43) is opened and a certain amount of mixed rice is continuously dropped.

In addition, a sensor arm (46) that rotatably supports a sensing shaft (45) through an bracket (44) in the Y-pass pipe (39) below the container (41) and fixes one end in the middle of the shaft (45). The receiving plate (47) is fixed to the other end, and the receiving plate (47) is supported so that it can be raised and lowered about the shaft (45) as a fulcrum. And the receiving plate (47) is positioned substantially directly below the outlet (43). One end of the sensing shaft (45) is interlockingly connected to a potentiometer (49) fixedly supported by a bracket (48), and a weight arm (50) horizontally provided in a direction opposite to the sensor arm (46) and vertically downward. The weight arms (51) that hang down are fixed to the ends of the sensing shaft (45). Further, a weight (52), which is a balance member that gives a balance force in a direction opposite to the acting force of the receiving plate (47), is attached to at least one of the weight arms (50) (51),
The mixed rice falling from the outlet (43) is brought into contact with the receiving plate (47), and the removal rate sensor (53) is formed by each member including the receiving plate (47) and the potentiometer (49). The sensor arm (46) and the sensing shaft (45) according to the relative weight change between the weight of rice flowing down and the weight (52).
Is rotated and the weight of the mixed rice falling from the outlet (43) is detected via a potentiometer (49). Further, an overflow sensor (54) is installed outside the container (41), and when the container (41) is filled with a certain amount of mixed rice and is in an overflow state, this is detected by turning on a switch (55). Configured to do so.

As shown in FIG. 6, the derolling rolls (3) and (4) are interlocked with each other via transmission gears (56) (57) (58) (59), and the sub-rolling roll (4) is connected to a gap adjusting link ( 60).
Slider (61). Gap adjustment shaft (62) and gear (6
3) Connect to the de-motor (7) via (64),
Derolling (3) by forward / reverse driving of the motor (7)
The hull gap (C) of (4) is provided so that the opening / closing control is appropriately performed. Also, the screw part (62a) at the other end of the shaft (62)
The mover (65) is screwed onto the
A roll maximum opening limit switch (66) which is a roll position switch operated by is fixed to the machine frame (67), and when the rolls (3) and (4) are opened to the maximum by the drive of the motor (7), The switch (66) is provided so as to detect this. Furthermore, the roll (3)
(4) and the roll transmission gears (56) (57) (58) (59) built-in case removal (67), derolling (3) (4)
The microphone (68), which is a microphone sensor that detects the change in the driving sound when the rotating machine rotates, is equipped with a transmission gear (56) (57) (58) that changes depending on the contact during rotation of the derolling (3) (4). ) (59) is detected by the microphone (8), and the zero state of the paddy gap (C) is detected via the microphone (68).

As shown in FIG. 3, a sorting amount sensor (69) for detecting a change in the sorting amount, which is the supply amount of the mixed rice supplied to this barrel (23), is detected in the lower sorting barrel (23) by a potentiometer (69). 70).

FIG. 7 is a control circuit diagram of the removal motor (7). The removal control circuit ((71a) configured by the microcomputer (71) is connected to the power supply (73) via the main switch (72).
Is connected to the control circuit (71a), and the potentiometer (49) of the removal rate sensor (53) is connected to the control circuit (71a) via the detection value adjustment circuit (75). The potentiometer (49) is connected to the control circuit (71a), and the detection value of the potentiometer (49) on the production line is adjusted by the adjusting circuit (75).

Further, the gears (56) (57) at the time of contact with the derolling (3) (4)
(58) The microphone (68) for detecting the driving sound of (59) is connected to the control circuit (71a) via a bandpass filter (76), and the shutter (5) below the hopper (2) is connected. A shutter switch (77) for detecting the opening operation when the opening operation is performed, the roll position switch (66) for detecting the maximum opening operation of the rolls (3) and (4),
Derolling (3) by operating the deployment lever (6)
A deployment lever operation detection switch (78) for detecting the emergency opening of (4), an overflow switch (55) of the removal rate sensor (53), and a control operation switch for performing this removal control and automatic start cancellation. A switch (79) is connected to the control circuit (71a).

Further, a sorting amount sensor (70) for detecting the amount of mixed rice in the sorting cylinder (22), and a removal rate setting device (8) for adjusting the clearance (C) of the derolling rolls (3), (4) by dial operation.
0) is connected to the control circuit (71a), the de-motor (7) is connected to the drive circuit (81), and the de-rolls (3) and (4) are opened and closed manually by manual operation. The open / close switch (82) is connected to the control circuit (71
Connect to a) respectively.

Further, each of the lamps (83) (84) (85), which is an alarm device for notifying the proper, high, or low rate of removal detected by the removal rate sensor (53), is provided with a removal rate display circuit (86).
And a selection amount indicator (87), which is a monitor for displaying the selection amount detected by the selection amount sensor (70) in a bar graph manner, is connected to the control circuit (71a), respectively, and the immature grain display is performed. Device (88) and automatic indicator (89)
A manual indicator (90) and a buzzer (91) as an alarm are connected to the control circuit (71a).

The switches (74) (77) described above are provided in the manual interrupt circuit (71b) provided in the microcomputer (71).
(78) (79) (82) and OK counter switch (92) are connected respectively.

On the other hand, a brown rice switching valve (93) is provided at the upper end of the chute (35) for appropriately switching the sending direction of the brown rice taken out to the brown rice receiving trough (30a) of the lower brown rice receiving conveyor (30).
The switching solenoid (94) of the switching valve (93) is connected to the control circuit (71a) via the switching circuit (95), and the selection amount sensor (70) causes the mixed rice supply amount in the lower selection tube (23). When detecting a predetermined amount or less, the solenoid (94) is operated to scrape off the brown rice from the receiving gutter (30a) to remove the rice (1).
6) That is, while the switching valve (93) is switched so as to send it to the circulation side, when the sensor (70) detects a predetermined amount of the mixed rice supply amount in the lower sorting cylinder (23), the solenoid (9)
By operating 4), the switching valve (93) is switched so as to send the brown rice in the receiving gutter (30a) to the brown rice taking-out gutter (9), that is, the taking-out side of the machine.

That is, when the amount of mixed rice supplied in the lower sorting cylinder (23) is less than or equal to a predetermined amount, the brown rice cannot be taken out of the machine. As is clear from the above, the derolling rate sensor (53) for detecting the rate of demixing of the mixed rice dehulled by the derolling (3) and (4) is provided, and the derolling (3) is performed based on the detection value of the sensor (53). (4) The clearance (C) of (4) is automatically adjusted to control the removal rate, and a sorting cylinder (23) that is a rotary sorting cylinder that continuously rotates in one direction is provided.
3) Rotate the brown rice in the barrel (23) to receive the brown rice (3)
In the structure taken out to 0a), the derolling (3)
A control operation switch (79) for starting or interrupting the automatic control of the gap (C) of (4) is provided, and the value of the withdrawal rate sensor (53) when the switch (79) is turned on is used as a reference withdrawal rate value. A microcomputer (71), which is a controller for storing and comparing the reference rate value with the detection value of the rate sensor (53) to automatically perform the clearance control of the rate roller, is provided with the receiving gutter (30a ), The brown rice switching valve (93) that appropriately switches the delivery direction of the brown rice to the unloading side or the circulation side that returns to the sorting cylinder (23), and the mixed rice sorting amount in the sorting cylinder (23) The sorting amount sensor (70) for detecting the
The switching valve (93) is automatically switched to the circulation side when the amount of mixed rice in the sorting cylinder (23) detected by the above is reduced below a predetermined level.

By the way, as for the support rolls (24) ... (25), which rotate the selection cylinders (22) (23), the one on the right side shown in FIG. 1 is driven by the drive rolls (24a) (25a) and the one on the left side is idled. Provided on the rolls (24b) (25b), the drive rolls (24a) (25b)
A rubber member (95) for slip prevention is wound around the outer peripheral contact surfaces of the sorting cylinders (22) (23) which are in contact with each other.

The present embodiment is configured as described above, and the removal rate control operation will be described below with reference to the flowcharts shown in FIGS.

1. When opening and closing the roll gap (C) manually (see Fig. 8 and Fig. 10) (1) Switch the selector switch (74) to manual.

(2) Close the deployment lever (6) and shutter (5).

(3) Close the manual open / close switch (82).

(4) When the rolls (3) and (4) come into contact with each other and the contact sound is confirmed, the switch (82) is turned off, and the zero point of the roll gap adjusting knob (not shown) is adjusted.

(5) Open the manual open / close switch (82) to open the rolls (3) and (4) to the specified gap.

All of these operations are performed by the operator.

2. When operating the roll gap (C) by automatic control 2-1 At the start of automatic control (see FIG. 8) (1) The initial gap x ₁ is set by the removal rate setting device (80).

(2) Close the deployment lever (6). When the shutter (5) is closed, the roll gap (C) is set to the reference value x ₁ position.

(3) Deployment lever (6) closed. When the shutter (5) is opened, the operation of the timer for setting the set time T ₁ required for starting the self control is started, and when the overflow sensor (54) is on, the automatic control is possible.

(4) The roll clearance (C) reference is reset to a reference release rate by observing the release state during work, and the reference value x is stored.

(5) Turn on the OK switch (79).

(6) After the set time T _{1 has} elapsed, automatic control starts and the automatic display (89) lights up.

Setting to the roll gap reference position (see Fig. 11) (1) Rolls (3) and (4) open to set the roll gap (C).
Open x ₃ only.

(2) The microphone level L, which is the noise level at this time, is sensed by the microphone (68) and k times the level L is the contact sound level L ₀ (L ₀ = L ×) of the rolls (3) and (4).
Remember as k).

(3) After the set time T _{3 has} passed, the rolls (3) and (4) are closed by 1 step.

(4) When the rolls (3) and (4) come into contact with each other and the microphone (68) senses the level L ₀ , the rolls (3) and (4) are opened by the set reference value x ₁ .

Roll gap reference resetting (see Fig. 12) When automatic controllable post-display release rate setting device (80) or manual open / close switch (82) is operated, roll gap (C) is adjusted according to the instruction, and after that adjustment The gap is stored as the reference value x, and when the OK switch (79) is operated, the removal rate reference value b corresponding to this reference value x is used as the reference removal rate, and control is performed thereafter. If it is not reset, automatic opening / closing control of x = x ₁ 2-2 roll gap (C) (when normal hulling work is performed) (Fig. 8, Fig. 9, Fig. 15 to Fig. 19) (1) The average loss rate a of the sample is larger than the unripe rice loss rate a _0, and the difference between the average loss rate a and the loss rate reference value b corresponding to the roll gap reference value x during the current operation is the reference loss rate. When the allowable range from the rate, that is, the allowable deviation c is smaller (a> a ₀ and | a−b | ≦
c) In other words, when the amount of unripe rice (polished rice) is small and the deviation from the standard removal rate is below a certain level.

a> b …… Rolls (3) and (4) are opened n steps a <b …… Rolls (3) and (4) are closed n steps a = b …… Rolls (3) and (4) are kept open / closed (2 ) When the roll gap (C) is within the constant adjustment range x ₄ (x ± x ₄ ) with the reference value x as the median value, the measurement of the removal rate a is repeated after the set time T ₂ .

(3) During this period, the fixed value Δx is corrected with respect to the reference value x corresponding to the roll wear amount every time the set time T ₄ elapses from the start of the time T ₁ .

(4) When the roll gap (C) exceeds the constant adjustment range x ₄ (x ± x ₄ or more (below)), the automatic control is interrupted and the roll gap alarm I is activated.

(5) Then, the operation of the alarm I is stopped by turning on the OK switch (79), and the roll gap (C) standard is reset and reset.

2-3 Control safety check (See Fig. 8) (1) Check microphone level every cycle during control,
(2) The roll position switch (66) is checked (roll position alarm), (3) the overflow sensor (54) is on-checked, and the removal rate sensor (53) is level checked (hopper clogging alarm).

(1) When the micro level is too large, set the roll gap to x ₂
Open to.

(2) Roll position alarm (See Fig. 14) When the roll position switch (66) is on, the roll position alarm is activated and the automatic control is interrupted. In this state, if the shutter (5) is closed and the OK switch (79) is turned on, the alarm operation is stopped. Then, after this, the main switch (72) is turned off once and the automatic control is performed again from the preparation.

(3) Hopper clogging alarm (see FIG. 19) When the overflow sensor (54) is turned off or the level of the removal rate sensor (53) is too low, the hopper clogging alarm is activated and the automatic control is interrupted.

In this case, by turning on the OK switch (79), the operation of the alarm is stopped, the clogging is removed within the time T ₅ after the switch (79) is turned on, and both the sensors (53) (54) are returned to their original states. At this time, the roll gap (C) standard is reset and reset.

2-4 Automatic opening / closing control of roll gap (C) (when deviation from reference value is large) (See Fig. 8, Fig. 9, Fig. 15 and Fig. 18) (1) Average desorption rate a of sample a Is greater than the immature rice removal rate a _0, and the difference between the removal rate reference value b corresponding to the roll gap reference value x during the current operation and the average removal rate a is greater than the allowable deviation c from the reference removal rate ( a> a and | a-b |> c) That is, when the deviation from the standard removal rate is large but the amount of unripe rice (glutinous rice) is small, the number of consecutive passes through the route with a> b m inland paddy alarm I ₀
And the n-step rolls (3) and (4) are opened. At this time, if the gap (C) is within x + x _{4, the} sample loss rate is repeatedly detected after time T ₂ . When x + x ₄ or more, the automatic control is interrupted and the roll gap warning information I is activated. The paddy alarm I ₀ is automatically canceled when the alarm condition is resolved.

When the route is a> b, the route is repeated m times and the automatic control is interrupted to activate the paddy alarm Im. At this time, the OK switch (79) is turned on to stop the operation of the paddy alarm Im, and the roll gap (C) standard is reset and reset.

(2) When a <b, the control is performed according to the above (1).

2-5 Automatic opening / closing control of roll gap (C) (when a large amount of unripe rice is mixed) (see Fig. 8, Fig. 9, Fig. 15 and Fig. 18) _The removal rate reference value b which is less than ₀ and corresponds to the roll gap reference value x during the current operation.
When the difference between and is larger than the allowable deviation c from the standard removal rate (a
≤a ₀ and | a-b |> c), that is, when the mixture of immature rice (glutinous rice) is large (actually, a <b is the most common case, so only this case will be described.) (1) Immature rice display The container (88) lights up.

(2) When the number of consecutive passes through the route is u or less, the paddy alarm IIm is activated, and the rolls (3) and (4) are not closed and the process proceeds to the next step.

(3) After the u-th time, the paddy alarm IIm is activated, and
Rolls (3) and (4) are closed n steps, and if the clearance (C) is within x-x ₄ , the route is repeated after time T ₂ x
When it becomes -x ₄ or less, the automatic control is interrupted and the roll gap alarm II is activated. In other words, if a ≤ a ₀ , roll (3) after the uth consecutive time until x-x ₄ is reached.
(4) closes. In this case also, roll gap alarm II
Is stopped by turning on the OK switch (79), and the roll gap (C) standard is reset and reset.

2-6 Pouring work (see Fig. 8, Fig. 9, Fig. 16 and Fig. 18) When the gap setting value by the removal rate setting device (80) during the current work is smaller than the setting value x _0. It is determined that the rice is porridged, and the average loss rate a of the sample is corrected by a certain amount of unripe rice (a value is agitated), and thereafter, the same control as the normal hulling work is performed.

That a> a ₀ and | a-b | When ≦ c similar to the previously described 2-2 a> a ₀ and | a-b |> when c when the same a ≦ a ₀ and above 2-4 above 2- The same control as 5 is performed.

It should be noted that the microphone level check is not performed every cycle during the koji work.

3. When manipulating the roll gap (C) by manual interruption (see Fig. 9) (1) Before automatic control start (OK counter switch (92) off) (OK counter switch (92) is at automatic control start This is provided to detect whether or not the OK switch (79) is pressed. When the OK switch (79) is pressed once, the OK counter switch (92) is kept on and then the OK switch (79) is turned on. In this case, the OK counter switch (92) is kept on.) Manual switching of the changeover switch (74) is performed to open and close manually.

(2) When automatic control is started (OK counter switch (92) is on) Open the deployment lever (6). Shutter (5) closed. The automatic control is interrupted by either the operation of the manual open / close switch (82) or the ON operation of the OK switch (79), and after restarting, the route starts from the roll gap reference reset. The manual open / close switch (82) can be freely operated before or after automatic control (manual priority).

In the flowchart, F ₁ (automatic start flag) is a determination as to whether or not a set time T _{1 has} elapsed from the start (0 until elapse, 1 after elapse), and F 2 (abrasive flag) is a removal rate setting device. set gap by uses to (time 0 exceeds 1, x ₀ when x ₀ below) to or smaller than the current Shiinasuri gap setting value x ₀ determination.

In addition, the alarm operates as follows.

(1) Open the deployment lever (6) before automatic start. When the shutter (5) is open, the buzzer (91) is continuously operated. (2) Paddy alarm I ₀ ... High rate lamp (84) lights up (3) Paddy alarm Im ... High rate lamp (84) blinks. Buzzer (91)
Intermittent (4) Paddy alarm II ₀ … Low rate lamp (85) lights up (5) Paddy alarm IIm… Low rate lamp (85) blinks. Buzzer (9
1) Intermittent (6) Roll gap alarm I.II ... Proper lamp (83) blinks. Buzzer (91) Intermittent (7) Hopper clogging alarm report ... Each lamp (83) (84) (8
5) Flashing. Buzzer (91) Intermittent (8) Roll position alarm ... Buzzer (91) continuous Further, the average removal rate a is the sum of detection values Z detected by the removal rate sensor (53) Y times in a predetermined time period, that is, at regular time intervals. The average value (a = Z / Y) is used, and manual interruption is possible even between pulses within this predetermined time.

By the way, as shown in FIG. 20, when the shutter (5) at the start of automatic control is opened and the sorting amount sensor (70) is in the proper sorting amount state after the elapse of a certain time T ₆ , the solenoid (94) is Is switched to the take-out side of the machine, and the brown rice taken out by the brown rice receiving gutter (30a) is sent to the brown rice taking-out gutter (9) and carried out of the machine. As a result, the brown rice can be automatically taken out of the machine only when the sorting condition in which the amount of the sorted rice is constant is stable, so that the quality of the brown rice can be maintained and the working efficiency can be improved.

Also, when the time is T ₁ = T ₆ , it is linked to the automatic control start,
When the removal rate is completely stabilized, automatic control is started and brown rice is taken out, so that brown rice can be taken out efficiently.

"Effects of the Invention" As is clear from the above examples, the present invention is provided with a removal rate sensor (53) for detecting the removal rate of the mixed rice that has been removed by the derolling (3) (4), and the sensor (53). ), The clearance (C) between the derolling rolls (3) and (4) is automatically adjusted to control the removal rate, and a rotary sorting cylinder (23) that continuously rotates in one direction is provided. Control for starting or interrupting the automatic control of the gap (C) of the derolling rolls (3), (4) in a structure in which (23) is rotated to take out the brown rice in the barrel (23) to the brown rice receiving trough (30a) An operation switch (79) is provided, the value of the escape rate sensor (53) when the switch (79) is turned on is stored as a reference escape rate value, and the reference escape rate value and the escape rate sensor (53) detection value are stored. By providing a controller (71) that automatically controls the clearance of the removal roll by comparing with A brown rice switching valve (93) for appropriately switching the delivery direction of the brown rice taken out to the trough (30a) to the take-out side on the outside of the machine or the circulation side for returning to the selection cylinder (23), and the inside of the selection cylinder (23). A sorting amount sensor (70) for sensing the mixed rice sorting amount is provided, and the switching valve (93) is circulated when the mixed rice in the sorting drum (23) detected by the sorting amount sensor (70) falls below a predetermined amount. Since it is configured to automatically switch to the side, the conventional manual reference rate setting device can be omitted and the structure and work can be simplified easily. It becomes unnecessary, and manual setting at the start of control such as setting the standard removal rate value becomes much easier than before, and it is easy to simplify the operation at the start of work, and from the start to the end of hulling work. To improve the operability of the entire control up to and maintain proper hull sorting control. This can be easily achieved.

[Brief description of drawings]

FIG. 1 is a sectional view of an entire main part showing an embodiment of the present invention, FIG. 2 is an external view of the same, FIG. 3 is an enlarged sectional view of the main part, and FIGS. FIG. 6, FIG. 6 is an explanatory view of the hulling portion, FIG. 7 is a de-control circuit diagram, and FIGS. 8 to 20 are flowcharts of the previous figures. (23) …… Sorting cylinder (selection cylinder) (30a) …… Brown rice receiving gutter (70) …… Sorting amount sensor (93) …… Brown rice switching valve

Claims (1)

[Claims] 1. A de-rolling rate sensor (53) for detecting a de-rolling rate of mixed rice de-rolled by the de-rolling (3) (4), and the de-rolling (3) (based on the detection value of the sensor (53). 4) The clearance (C) is automatically adjusted to control the desorption rate.
In the structure provided with a rotary selection cylinder (23) for continuously rotating in one direction, and rotating the selection cylinder (23) to take out the brown rice in the cylinder (23) to a brown rice receiving trough (30a), the derolling (3 ) A control operation switch (79) for starting or interrupting the automatic control of the gap (C) of (4) is provided, and the value of the removal rate sensor (53) when the switch (79) is turned on is the reference removal rate value. And a controller (71) for automatically controlling the clearance of the release roll by comparing the reference release rate value with the detection value of the release rate sensor (53) and taking it out to the receiving gutter (30a). A brown rice switching valve (93) that appropriately switches the sending direction of brown rice to the take-out side or the circulation side that returns to the sorting cylinder (23), and senses the mixed rice sorting amount in the sorting cylinder (23) Sorting amount sensor (70)
And the switching valve (93) is automatically switched to the circulation side when the mixed rice in the sorting cylinder (23) detected by the sorting amount sensor (70) decreases below a predetermined level. Sorting device for paddy huller.