JPS62286552A - Dehulling control unit of huller - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention "Field of Industrial Application" The present invention is directed to a dehulling control for a huller that separates and takes out rice into brown rice and rice husks using a pair of dehulling wheels. Regarding equipment.

``Prior art'' Conventionally, the removal rate in a huller is controlled by detecting the load of the huller motor and the amount of paddy supplied, that is, the opening degree of the supply valve (for example, Japanese Patent Laid-Open No. 17845/1984). be.

``Problems to be solved by the invention'' However, depending on various factors such as the variety of paddy, moisture content, and the amount of scraped rice and returned mixed rice returned to the supply hopper, even if the opening degree of the supply valve is constant. However, there was a problem in that the dehulling rate could not be maintained constant because the amount of paddy supplied based on the valve opening and the amount of paddy actually supplied to the dehulling rolls were significantly different.

"Means for Solving the Problems" However, the present invention provides a flow rate sensor that detects the flow rate of paddy supplied to the huller, and determines the dehulling rate based on the output of this flow rate sensor and the output of the load sensor of the hulling motor. It is configured to control the adjustment member.

``Function'' According to the present invention, even if the amount of paddy supplied changes, the de4 removal rate is 3.
Properly operate the Af'i parts and remove the 110-ru ¥7
It is possible to maintain a constant rate and perform stable escape +7m18 with higher accuracy than conventional methods.

"Example" Embodiments of the present invention will be described in detail below based on the drawings.

Figure 1 is a rice huller control circuit diagram, Figure 2 is an overall view of the rice huller, and Figure 3 is a cross-sectional view of the same.
2) is a supply hopper into which paddy is input, (3) and (4) are a pair of removal 40-holes installed opposite to each other at the bottom of the hopper (2), (5)
is a shell for opening and closing the lower part of the hopper (2); (8)
(7) is a deployment lever for manually opening each of the rolls (11) and (4) in an emergency manner;
This is a wall removal rate motor, which is a wall removal adjustment member that adjusts the approach and separation of the wall.

In the figure, (8) is a winnowing section on which the hulling section (1) is placed, which removes small rice from the brown rice falling into the brown rice take-out gutter (3) and the brown rice conveyor (10) and the gutter (3). Karakin (II)
) and the rice removal gutter (12) that carries the rice out of the machine.
and receives the rice (brown rice and paddy) that has been scraped off by facing downwards from the dehulling rolls (3) and (4) through the grain scattering plate (14) and grain flow plate (15). A scraped rice take-out IIJJ (1B), a scraped rice conveyor (17), and a rice pick-up gutter (1) that receives rice separated from the scraped rice.
8), a stub conveyor (19), and a dust suction/exhaust fan (20) for discharging the chaff separated from the scraped rice to the outside of the machine.

In the figure, (21) shows the hulling section (1) placed on the wind sorting section (8).
), and as shown in Fig. 4, there are upper and lower sorting tubes (22) and (23) that rotate continuously in one direction to separate brown rice and paddy, and each part (22) ( Support rolls (24) that rotatably support the respective rollers (23)...(
25) ..., a mixed rice supply tank (28) provided outside one end of the upper sorting tube (22), a supply conveyor (27) and a re-sorting grain conveyor (2) inserted into the upper sorting tube (22).
8), brown rice receiving conveyor (29), and lower sorting tube (23)
), a rice sorter m (31) installed between the upper and lower brown rice receiver conveyors (29 and 30) and connected in series, and a paddy discharger in the upper sorting tube (22). (32) whose end communicates with the hopper (2);
A shoe (33) that connects the re-sorting grain conveyor (28) to the lower sorting tube (23), and a chute (34) that slides down the mixed rice discharge end of the lower sorting tube (23) and connects it to the rice removal gutter (16). and a chute (35) that communicates the brown rice receiving conveyor (30) with the brown rice take-out gutter (9).

And a brown rice lifting conveyor (36) whose lower end side communicates with the brown rice conveyor (10), and a brown rice lifting conveyor (36) that communicates with the brown rice conveyor (10);
Sorting rice lifting conveyor (37) whose lower end side communicates with 17)
) are set up along the outside of the machine, and the upper end of the sorting rice lifting conveyor (37) is communicated with the supply tank (26) through a connecting pipe (38), and the hulling part (
1) The scraped rice from 1) and the sorting mentioned above? '? It is configured so that the returned mixed rice from I (23) is combined and charged into the supply tank (26).

Further, an overflow gutter (39) is provided, the upper end of which communicates with the supply tank (2B) and which faces the upper surface of the supply hopper (2), and excess mixed rice in the supply tank (26) is drained from the overflow. It is arranged to return to the supply hopper (2) via the gutter (39).

Furthermore, the hulling section (1), wind sorting section (8) and sorting section (2)
1);
The wheels (3) and (4) are configured to be driven by a huller motor (40).

FIG. 5 is an explanatory diagram of the rice huller (1), and the support shaft (41) (
42) respectively, the floating rolls (3) and (4) are installed internally facing the hulling case (43), and each support shaft (41)
Transmission gears (44) and (45) are pivotally supported by (42), and a gear case (46) is provided in the rice hulling case (43), and the gears (44) and (45) are mounted in the case (4B).
be installed internally. Further, drive gears (49) and (50) are pivotally supported in the case (4G) via power shafts (47) and (48), and each gear (44), (45) and (49) and (50) are always in mesh. at the same time, the support shaft (42) of one of the wall removal rolls (4) is pivotally supported in the middle of the gap adjustment link (51),
One end of the link (52) is supported coaxially with one of the power shafts (48). and the removal rate motor (7)
a gap adjustment shaft (54) interlockingly connected to the other end of the link (51) via a bearing member (55), and a threaded portion (54a) at one end of the shaft (54). ) are screwed together, and the hulling gap (5B) of each roll (3) and (4) into which paddy is introduced is automatically adjusted to enlarge or reduce by the forward/reverse control of the motor (7), and the shirt) ( 54) At the other end, adjust the de-4 rate/＼ndle (5
7) is installed, and the hulling gap (56) can be manually enlarged or reduced by rotating the handle (57).

In addition, a shutter (5) is installed above the deburring rolls (3) and (4).
The paddy from the supply hopper (2) is placed below each roll (
3) It is equipped with a feed roll (58) that is dropped between (4) and a supply valve (59) that adjusts the amount of paddy that is dropped from the feed roll (58), and a motor (8) is installed on the bottom surface of the valve (59).
A slider (62) screwed onto the rotating screw shaft (81) of 0)
are brought into contact with each other, and the opening degree of the supply valve (59) is adjusted as appropriate by forward and reverse driving of the motor (GO).

As shown in FIG. 1, a current sensor (63) is a load sensor that detects the driving load of the hulling motor (40), and the dehulling roll (3) is a reference value of this sensor (83).
(4) De-17 rate setting device (64
) between the shutter (5) and the supply valve (59) inside the hulling case (43) in which the dehulling rolls (3) and (4) are installed.

Def% Flow rate (flow rate) of paddy supplied to O-ru (3) (4)
A flow rate sensor (65) that detects a change, and a flow rate sensor (65) that detects a change.
Equipped with an efficiency setting device (6B) for setting the efficiency reference value of the above-mentioned theory 40-rules (3) and (4), which is the reference value of 5), and a demolition control circuit (67) configured by a microcomputer is connected to each of the sensors. (83) (85) and each setting device (eg (
At the same time, the control circuit (87) is connected to the control circuit (87) through the drive circuits (88) and (89) to the evaporation rate motor (
7) and the supply valve motor (80), and based on the output of the current sensor (63) and flow sensor (65), the excitation rate motor (7) is controlled to drive in forward and reverse directions, and the demolition roll (3) is (
4) automatically adjusts the demolition rate, and also adjusts the flow rate sensor (6).
Based on the output of step 5), the supply amount motor (60) is controlled to drive in forward and reverse directions, and the amount of paddy supplied to the dehulling rolls (3) and (4) is automatically adjusted.

This embodiment is constructed as described above, and as shown in the flowchart of FIG.
Detects the flow rate of paddy supplied to the paddy hopper (2) by
Compare the output value of this sensor (65) with the efficiency reference value,
The flow rate (flow rate) of paddy changes depending on the variety of paddy, water content, amount of scraped rice and returned mixed rice returned to the supply hopper (26), etc., and the output value of Senna (65) changes with respect to the efficiency base value. When the output value of the sensor (65) becomes smaller than the efficiency reference value, the supply amount motor (60) is operated to control the closing of the supply valve (58). ) is operated to control the opening of the supply valve (59), thereby maintaining a substantially constant flow rate of paddy supplied to the dehulling rolls (3) and (4).

Then, the rice hulling remoter (40) is controlled by the current sensor (63).
) is detected and the flow rate sensor (
When the output value of 65) is maintained constant, the output value of the Ti1t flow sensor (63) is compared with the excitation rate reference value, and the reference value is determined due to wear of the de-wall removal rolls (, 11) (4), etc. On the other hand, when the load current value becomes small, the removal rate motor (7)
is activated to control the reduction of the hulling gap (56) to prevent a decrease in the dehulling rate.However, the load current value becomes larger than the standard value due to an increase in brown rice returned to the dehulling rolls (3) and (4). When this happens, the motor (7) is operated to close the hulling gap (5).
B) is magnified and controlled to prevent the generation of scrap rice due to misaligned rice or cracked rice. Furthermore, by adjusting the opening degree of the supply valve (58), erroneous detection by the current sensor (63) due to an increase or decrease in the amount of paddy supplied to the dehulling rolls (3) and (4) can be prevented, and proper dehulling rolls (3 ) (4) The gap control can be performed stably during the hulling operation.

"Effects of the Invention" As is clear from the above examples, the present invention has a demolition roll (
3) Provide a load sensor such as a current sensor (S3) that detects the load on the huller motor (40) that drives (4), and adjust the shearing ratio motor (7) etc. based on the output of this sensor (83). ■-In the device for controlling the rate adjusting member,
A flow rate sensor (S5) that detects the flow rate of paddy supplied to the 70-rules (3) and (4) is installed, and the removal rate adjustment member is adjusted based on the output of this flow rate sensor (65) and the output of the load sensor (63). (7), and even if the amount of paddy supplied changes, the dehulling rate adjusting member (7) is operated appropriately, and the dehulling rate of the dehulling rolls (3) and (4) is kept constant. This method has remarkable effects such as being able to maintain stable deburring control with higher precision than conventional methods.

[Brief explanation of the drawing]

Fig. 1 is a rice huller control circuit diagram showing one embodiment of the present invention;
The figure is an overall view of the W4 rice huller, Figure 3 is a front cross-sectional view of the same, Figure 4 is a side view of the same cross-section, Figure 5 is an enlarged cross-sectional view of the hulling section, and Figure 6 is a flowchart of the 4-way removal control circuit. be. (3) (4)... De-culling f10-le (7)... De-culling rate motor (de-culling rate adjustment member) (
40)... Husking motor (63)... Current sensor (load sensor) (65
)... Flow rate Sensing applicant
Seirei Industries Co., Ltd. Figure 4 Figure S?

Claims (1)

[Claims] In a device that is provided with a load sensor that detects the load of a hulling motor that drives a dehulling roll and controls a dehulling rate adjusting member based on the sensor output, a flow rate sensor that detects the flow rate of paddy supplied to the dehulling roll is provided. 1. A dehulling control device for a rice huller, characterized in that the dehulling control device is configured to control a dehulling rate adjusting member based on the output of the flow rate sensor and the output of the load sensor.