JPH0659414B2 - Dehulling control device for huller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION “Industrial Application Field” The present invention includes a de-rate sensor for detecting a de-rate of a mixed rice de-rolled, and a de-roll gap based on a detection value of the sensor. The present invention relates to a deregulation device for adjusting the deceleration and controlling the desorption rate.

"Prior Art" Conventionally, as shown in Japanese Utility Model Laid-Open No. 58-161641, there has been a removal rate automatic control technology for automatically adjusting a removal roll gap based on a detection result of a removal rate sensor.

"Problems to be solved by the invention" In the prior art, since the setting device for manually setting the reference rate of the rate of automatic control was provided, when performing the rate of automatic control, the operator refers to the scale or the like. Operate the setting device sensuously, visually check the hulling state after a lapse of a predetermined time, operate the setting device again, and then perform the work such as checking the hulling state again after the lapse of a predetermined time. , It is necessary to start the automatic control unmanned operation after repeating the operation of the setting device every predetermined time until the hulled state becomes appropriate, and it is extremely troublesome to manually set the standard removal rate value for automatic removal rate control. However, there is a problem in that the manual operation of setting the standard removal rate cannot be simplified and the initial setting time required for automatic control cannot be shortened easily.

"Means for Solving the Problem" Therefore, the present invention is provided with a removal rate sensor that detects the removal rate of derolled mixed rice, and adjusts the derolling gap based on the detection value of the sensor. In the structure designed to control the removal rate constant, a control operation switch for starting or interrupting the automatic control of the clearance of the removal roll is provided, and the removal rate sensor value when the switch is operated from OFF to ON is read. A controller is provided that automatically writes and stores as a reference desorption rate value, and thereafter, based on this reference deduction rate value, automatically performs gap control of the desorption rate roll by comparing with the desorption rate sensor detection value. The controller is provided with a manual adjustment means for stopping the automatic gap control to manually adjust the reference gap value and, after the manual adjustment, to set a reference removal rate value corresponding to the reference gap value. Characterize.

[Operation] Therefore, the hulling work is started by manual adjustment, and when the hulling at the proper removal rate is confirmed, the control operation switch is automatically controlled to start the removal rate sensor value at the time of switching on the switch. Is automatically input and set as the standard de-rate value, the conventional manual standard de-rate setting device can be omitted, the structure and work can be simplified, and the manufacturing cost can be reduced easily. Eliminates the need to manually set the rate value, makes it easier to simplify the standard de-rate value setting operation and shortens the initial setting time required for automatic control, etc., and corrects the standard de-rate value to an appropriate value. It is possible to eliminate problems such as forgetting to operate the conventional setting device, improve the automatic removal rate control function, and improve the handling operability easily.In addition, operate the manual adjustment means to interrupt the automatic control and set the standard. Establish again Therefore, the work can be safely performed by easily dealing with the trouble that occurs during the automatic control.

[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 hulling machine, (2) is a hopper for throwing in the paddy, (3) and (4) are a pair of derollers that are placed opposite to the lower part of the hopper (2), and (5) is the hopper. (2) A shutter that opens and closes the lower part, (6) a deployment lever that opens the rolls (3) and (4) in an emergency by manual operation, and (7) a release rate that adjusts the gap between the rolls (3) and (4). It is a step drive type de-motor which is an adjustment motor.

(8) in the figure is a wind-selecting section on which the hulling machine (1) is mounted, and removes brown rice from brown rice taking out gutter (9) and brown rice conveyor (10), and brown rice falling into the gutter (9). Karatomi (11), a small rice pick-up gutter (12) and a small rice conveyor (13) that carry the small rice out of the machine,
The derolling is performed through the grain scattering plate (14) and the flow grain plate (15).
(3) (4) Sliding rice pick-up gutter (16) that receives slid rice (brown rice and paddy) facing downward and a sliding rice conveyor (17), and rice grains that are separated from the slid rice. It is provided with a take-out gutter (18) and a rice porridge conveyor (19), and an intake / exhaust dust fan (20) for discharging the rice husks separated from the sliding down to the outside of the machine.

In the figure, (21) is a sorting section that is placed on the wind selecting section (8) and is installed in parallel with the hulling section (1). As shown in Fig. 3, the brown rice and the paddy are continuously rotated in one direction. Upper and lower sorting tubes to separate (22) (23)
A support roll (24) for supporting the tubes (22) and (23) rotatably respectively, and a mixed rice supply tank (26) provided outside one end of the upper selection tube (22), Supply conveyor (27) and re-graining conveyor (28) and brown rice receiving conveyor (29) to be inserted in the upper sorting cylinder (22), and brown rice receiving conveyor (30) to be inserted in the lower sorting cylinder (23), up and down A rice selector (31) provided between the brown rice receiving conveyors (29) (30) and connected in series, and a chute (32) for communicating the paddy discharge end of the upper sorting cylinder (22) with the hopper (2). ,
A chute (33) for connecting the re-graining conveyor (28) to the lower sorting cylinder (23), and a chute (34) for sliding down the mixed rice discharge end of the lower sorting cylinder (23) to communicate with the rice picking gutter (16). A chute (35) that connects the brown rice receiving conveyor (30) to the brown rice removing gutter (9)
With.

And the brown rice lifting conveyor (36) that communicates the lower end side to the brown rice conveyor (10), and the sorted rice lifting conveyor (37) that communicates the lower end side to the scraped-down rice conveyor (17) outside the machine. Along with standing alongside, the supply tank (26) is connected to the upper end of the selection rice lifting conveyor (37) by a connection pipe (38), and the scraped rice of the huller (1) and the selection section (twenty one)
By connecting the return mixed rice of the bypass pipe (39) for diverting to join the sorting rice (21) to the connecting pipe (38),
Further, 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), and the bypass pipe (39) is similar to the conveyors (36) (37). Install along the outside of the machine.

4 to 6 are enlarged cross-sectional views of the bypass pipe (39), in which the container (41) which is a hopper for measuring the weight of downflow is installed in the bypass pipe (39), and both sides of the container (41) are provided. The overflow gutters (42) (42) are integrally configured to keep the mixed rice in the container (41) constantly, and the excess mixed rice leaks into the overflow gutter (42) from the upper edge of the container (41). Along with lowering, a grain outlet (43) is opened in the center of the lower part of the container (41) so that a fixed amount of mixed rice is continuously dropped.

The bracket (4) is attached to the bypass pipe (39) below the container (41).
The sensing shaft (45) is rotatably supported via (4), and the receiving plate (47) is fixed to the other end of the sensor arm (46) whose one end is fixed to the middle of the shaft (45). ) As a fulcrum to support the receiving plate (47) so as to be able to move up and down, and the receiving plate (47) is tilted in the left-right direction substantially orthogonal to the vertical swing direction so that the receiving plate (47) is received substantially directly below the outlet (43). Position the board (47). And one end of the sensing shaft (45) is interlockingly connected to a potentiometer (49) fixedly supported by a bracket (48), a weight arm (50) horizontally provided in the opposite direction to the sensor arm (46), and a vertically downward direction. 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), and the weight (52) is attached from the outlet (43). Falling mixed rice plate (47)
To form a desorption rate sensor (53) by each member including the receiving plate (47) and potentiometer (49), and the sensor is determined by the relative weight change between the weight of the mixed rice and the weight (52). The arm (46) and the sensing shaft (45) are rotated, and the weight of the mixed rice falling from the outlet (43) is detected via a potentiometer (49). Further, an overflow sensor is provided outside the container (41).
(54) is installed, and when the container (41) is filled with a certain amount of mixed rice and is in an overflow state, switch this (55).
It is configured to be detected by the ON operation of.

As shown in FIG. 6, the unrolling rolls (3) and (4) are
6) (57) (58) (59) interlocking connection, the auxiliary derolling (4) the gap adjusting link (60), slider (61), gap adjusting shaft (62) and gear (63) (64) through the demotoring
It is connected to (7) so that the hull gap (C) of the derolling rolls (3) and (4) can be controlled to be appropriately opened and closed by the forward and reverse driving of the motor (7). Further, the screw portion (6
The moving element (65) is screwed to 2a), and the moving element (65) is also attached.
The 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. Further, the rolls (3) and (4) and roll transmission gears
(56) (57) (58) (59) built-in case removal (67) has a microphone (68), which is a microphone sensor that detects the change of this driving sound when the removal roll (3) (4) rotates. The gear (56) (57) (58) (59) that changes depending on the contact during rotation of the derolling (3) (4) is provided with the microphone (68).
The zero state of the paddy gap (C) is detected via the microphone (68).

As shown in FIG. 3, in the upper sorting cylinder (22), a sorting quantity sensor (69) for detecting a change in the sorting quantity, which is the supply quantity of the mixed rice supplied to the barrel (22), is detected by a potentiometer (69). 7
0).

FIG. 7 is a control circuit diagram of the de-motor (7), showing a de-control circuit (7) constituted by a microcomputer (71).
The power switch (73) is applied to the 1a) via the main switch (72), and the changeover switch (74) for switching between automatic and manual adjustment is connected to the control circuit (71a), and at the same time, the release rate sensor (53) The potentiometer (49) is connected to the control circuit (71a) via the detection value adjusting circuit (75), so that the adjustment circuit (75) adjusts the detection value on the production line of the potentiometer (49). Constitute.

Further, the microphone (68) for detecting the drive sound of the gears (56) (57) (58) (59) at the time of contact with the derolling (3) (4) is controlled by the control circuit (via a bandpass film (76). 71a), the shutter switch (77) for detecting the shutter (5) at the bottom of the hopper (2) when it is opened, and the maximum opening operation of the rolls (3), (4). Roll position switch (66) and derolling (3) by operating the expansion 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 an OK control operation switch for performing this removal control and automatic start release. The switch (79) and the control circuit (7
Connect to 1a).

As is clear from the above configuration and FIG. 8, a derolling rate sensor (53) for detecting the derolling rate of the derolled (3) (4) deblended mixed rice is provided, and the detection value of the sensor (53) Based on the structure that adjusts the clearance (C) of the derolling (3) (4) and constantly controls the removal rate, starts automatic control of the clearance (C) of the derolling (3) (4) Alternatively, an OK switch (79) for interruption is provided, and the value of the loss rate sensor (53) when the switch (79) is operated from OFF to ON is read and automatically written and stored as the reference loss rate value. A microcomputer (71), which is a controller for automatically performing clearance control of the removal roll by comparing with the detection value of the removal sensor (53) based on the reference removal rate, is provided with the removal rolls (3) (4). ) Gap (C)
(C) manually adjust the reference value, and after the manual adjustment, the clearance (C) is a manual adjustment means for setting a reference removal rate value corresponding to the reference value. A removal rate setting device (80) and a manual opening / closing switch (82). Is provided in the microcomputer (71). Then, when the hulling work is performed by manual adjustment and the hulling at the proper removal rate is confirmed, the removal rate sensor (53) when the switch (79) is turned on is activated by the automatic control start operation of the OK switch (79). ) Value is automatically input and set as the standard removal rate value, and thereafter, based on the reference removal rate value and the detection value of the removal rate sensor (53), the automatic roll clearance (3) (4) clearance control is performed, Rate setter
When the (80) or manual open / close switch (82) is operated, the roll gap (C) is adjusted, the adjusted gap reference value is stored, and the corresponding release rate reference value is released as a reference by operating the OK switch (79). The rate is controlled so that it can be controlled thereafter.

Furthermore, a sorting amount sensor (70) for detecting the amount of mixed rice in the sorting cylinder (22), and a removal rate setting device (80) for adjusting the clearance (C) of the derolling rolls (3), (4) by dial operation. And the control circuit
(71a), the de-motor (7) through the drive circuit (81), and the de-rolling (3) (4) manually open and close the manual opening and closing switch (82) to manually Connect to the control circuit (71a).

Still further, each of the lamps (83) (84) (85) which is an alarm device for notifying the proper or high rate or low rate of the removal rate detected by the removal rate sensor (53) is provided with a removal rate display circuit (86). And a sorting amount indicator which is a monitor for displaying the sorting amount detected by the sorting amount sensor (70) in a bar graph manner.
(87) is connected to the control circuit (71a) respectively, and the immature grain indicator (88), automatic indicator (89) and manual indicator (9
0) and an alarm buzzer (91) are connected to the control circuit (71a).

On the other hand, the switches (55) (74) (77) (78) (7) described above in the manual interrupt circuit (71b) provided in the microcomputer (71).
9) and the OK counter switch (92) are connected respectively.

This embodiment is configured as described above, and the control operation will be described below with reference to the flow charts shown in FIGS.

1. When opening and closing the roll gap (C) manually (see FIGS. 8 and 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) When the deployment lever (6) is closed and the shutter (5) is closed, the roll gap (C) is set to the reference value x ₁ position.

(3) expansion lever (6) closed, the shutter (5) the operation of the tire starts to set the set time T ₁ required for the automatic control is started when the open, the automatic control state when the overflow sensor (54) on .

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

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

(6) After the set time T ₁ , the automatic control starts and the automatic display (89) lights up.

Opening set to nip the reference position (see Fig. 11) (1) Roll (3) (4) of the opening motion and the roll gap (C) only x _3.

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

(3) After the set time T _{3, the} rolls (3) and (4) are closed.

(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 set to the reference value x.
Opening by the equivalent of ₁ .

Roll gap reference resetting (see Fig. 12) Automatically controllable When the release rate setting device (80) or the manual opening / closing switch (82) is operated, the roll gap (C) is adjusted according to the instruction, and after that The gap is stored as a reference value x, and when the OK switch (79) is operated, this reference value x
Then, the control is performed with the escape rate reference value b corresponding to the above as the reference escape rate. If it is not reset, x = x ₁ .

2-2 Automatic opening / closing control of roll gap (C) (when normal hulling work is performed) (See FIGS. 8, 9, and 15 to 19) (1) Average desorption rate of sample a is larger than the immature release rate a _0, and the difference between the release rate reference value b corresponding to the roll gap reference value x during the current work and the average release rate a is smaller than the allowable range from the reference release rate, that is, the allowable deviation c. When (a> a. And | a−b
| ≦ c) That is, when the amount of immature rice (rice) is small and the deviation from the standard removal rate is below a certain level.

a> b …… Roll (3) (4) is opened n steps a <b …… Roll (3) (4) is closed n steps a = b …… Roll (3) (4) is 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, a constant value Δx with respect to the reference value x is made to correspond to the roll wear amount at every set time T ₄ from the start of the time T ₁
Is fixed.

(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) Thereafter, 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, the roll gap x
Open to ₂ .

(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, the shutter
When the (5) is closed and the OK switch (79) is turned on, the alarm operation stops. 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) The overflow sensor (54) is turned off or the removal rate sensor (5
When the level of 3) is too low, the hopper clogging alarm is activated and the automatic control is interrupted.

In this case, the operation of the alarm is stopped by turning on the OK switch (79), the clogging is removed within the time T ₅ from the turning on of the switch (79), and both the sensors (53) and (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) (Figs. 8, 9, 15 to 1)
(See Fig. 8) (1) The average desorption rate a of the sample is larger than the immature desorption rate a _0, and the difference between the desorption rate reference value b corresponding to the roll gap reference value x in the current work and the average desorption rate a is the standard. When the deviation is larger than the allowable deviation c from the removal rate (a> a ₀ and | a−b |> c), that is, when the deviation from the reference removal rate is large, but the unripe rice (glutinous rice) is small, The number of consecutive passes through the route when a> b is m times
_{Operate 0} and open n-step rolls (3) and (4). At this time, if the clearance (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 alarm I is activated. The paddy alarm I ₀ is automatically canceled when the alarm condition is resolved.

When a> b, the number of times the route has passed continuously is m. The automatic control is interrupted and the paddy alarm Im is activated. 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 to Fig. 18) _Less than ₀ ,
When the difference between the roll clearance reference value x and the removal rate reference value b during the current operation is larger than the allowable deviation c from the reference removal rate (a ≦ a ₀ and | a−b |> c), that is, unripe rice (When there is a large amount of mixed rice (actually, a <b is the case in most cases, only this case will be described.) (1) The unripe rice indicator (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 to proceed 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 the gap (C) is x =
If it is within x ₄ , the route is repeated after the time T ₂ and when it becomes x−x ₄ or less, the automatic control is interrupted and the roll gap alarm II is activated. That is, if a ≦ a ₀ , continuous u
Kai subsequent roll (3) (4) to x-x ₄ reach is closing. Also in this case, the 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 Abrasive work (Figs. 8, 9, 16 and 18)
(Refer to the figure) When the gap setting value by the removal rate setting device (80) during the current work is smaller than the porridge setting value x ₀ , it is judged as porridge and the average removal rate a of the sample is corrected by a certain amount of unripe rice (a value After that, the same control as that for the normal porridge work is performed.

That a> _{a 0} and | a-b | When ≦ C similar to the aforementioned 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 polishing work.

3. When operating the roll gap (C) by manual interruption (See Fig. 9) (1) Before automatic control starts (OK counter switch (92) is off (OK counter switch (92) is OK when automatic control starts) It is provided to detect whether or not the 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. Also, 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) Expansion lever (6) open, shutter (5) closed, manual open / close switch (8
2) The automatic control is interrupted by either the operation or the ON operation of the OK switch (79), and after the restart, the route starts from the roll gap reference reset. The manual opening / closing switch (82) can be freely operated either in the automatic control or in the latter case (manual priority).

In the flow chart, F ₁ (automatic start flag) is used to determine whether or not a set time T _{1 has} elapsed from the start (0 until elapse, 1 after elapse), and F ₂ (price flag) is set as a removal rate setting. setting by vessels gap used 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) Continuous opening of the buzzer (91) when the expansion lever (6) is opened and the shutter (5) is opened before automatic start (2) Paddy alarm I ₀ ... High rate lamp (84) lit (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 Im ... Low rate lamp (85) flashes, buzzer (91) intermittent (6 ) Roll gap alarm I, II ... Proper lamp (83) blinking, buzzer (91) intermittent (7) Hopper clogging alarm ... Each lamp (83) (84) (85) blinking and buzzer (91) intermittent (8) Roll position Alarm ... Continuous buzzer (91) Further, the average escape rate a is the average value (a = Z / Y) of the detection value sum Z detected by the escape rate sensor (53) Y times in a pulsed manner every predetermined time, that is, every constant time. In this case, the manual interruption is possible even between the pulses within this predetermined time.

By the way, as shown in FIG. 20, the removal rate setting device (80)
Is a dustproof and splashproof structure.The dustproof member (96) is provided between the knob (94) for opening and closing the variable resistor (93) and the operation panel (95), and the variable resistor is (93) and operating axis
The zero link (99) is provided between the (97) and the zero link presser (98).

"Effects of the Invention" As is clear from the above examples, the present invention provides a deroll
(3) (4) Equipped with a removal rate sensor (53) for detecting the removal rate of the removed mixed rice, and the gap (C) between the removal rolls (3) and (4) based on the detection value of the sensor (53). In the structure to adjust the desorption rate by constant control, the control operation switch (79) for starting or interrupting the automatic control of the clearance (C) of the derolling (3) (4) is provided, and the switch ( (79) is operated from OFF to ON, the value of the escape rate sensor (53) is read and automatically written and stored as the reference escape rate value, and then the escape rate sensor (53) detected value is based on this reference escape rate value. In addition to the controller (71) that automatically controls the clearance of the derolling roll by comparing with the above, the clearance of the derolling rolls (3) and (4) is
(C) Manual adjustment means for stopping the automatic control to manually adjust the gap (C) reference value, and after the manual adjustment, the reference de-rate value corresponding to the gap (C) reference value is set (80) ( 82) is provided in the controller (71), and the hulling work is started by manual adjustment, and when the hulling at an appropriate removal rate is confirmed, the control operation switch (79) is automatically started. so,
Since the value of the loss rate sensor (53) when the switch (79) is switched on is automatically input and set as the reference loss rate value, the conventional manual reference loss rate setting device is omitted and the structure and work are simplified and manufactured. The cost can be reduced easily, and
It eliminates the need for the manual setting of the standard removal rate value, making it easier to set the reference removal rate value and shortening the initial setting time required for automatic control. It is possible to eliminate problems such as forgetting to operate the conventional setting device that corrects the removal rate value to an appropriate value, and it is possible to easily improve the removal rate automatic control function and handling operability, and further, to manually adjust the means. By operating, the automatic control can be interrupted and the standard removal rate can be set again.
This makes it possible to easily deal with problems that occur during automatic control and to perform work safely.

[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 a hulling section, FIG. 7 is a de-control circuit diagram, FIGS. 8 to 19 are flowcharts of the previous figure, and FIG. 20 is an explanatory diagram of a de-rate setting device. . (3) (4) …… Roll removal (53) …… Desorption rate sensor (71) …… Microcomputer (controller) (79) …… OK switch (control operation switch) (C) …… Deroll clearance

Claims (1)

[Claims] 1. A derolling roll (3) (4) comprising a debending rate sensor (53) for detecting the debating rate of the demixed mixed rice, and the derolling (3) (based on the detected value of the sensor (53). In a structure in which the clearance (C) of (4) is adjusted to control the removal rate constant, a control operation switch (79) for starting or interrupting the automatic control of the clearance (C) of the derolling (3) (4). ), The switch
When the (79) is operated from off to on, the removal rate sensor (5
3) The value is read and automatically written and stored as the standard deceleration value.After that, the desorption rate sensor (5
3) A controller (71) that automatically controls the clearance of the derolling roll by comparison with the detected value is provided, and the automatic clearance (C) control of the derolling (3) and (4) is stopped and the clearance ( C)
Manual adjustment means for manually adjusting the reference value, and after the manual adjustment, a reference removal rate value corresponding to the gap (C) reference value is set (8
(0) (82) The controller (71) is provided with the de-control device for a huller.