JPH0724782B2 - Automatic supply control device for huller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an automatic supply control device in a huller.

(Prior Art) Conventionally known, Japanese Patent Laid-Open No. 53-130157, rear and Japanese Utility Model Publication 57-10
Japanese Patent No. 758 discloses that a paddy rice feeding elevator provided with a pulling shutter S1 in a feeding hopper and an upper level switch L1 and a lower level switch L2 to which the paddy rice is fed from the feeding elevator.
From a supply tank for a hulling section having, a hulling section having a main roll and a sub-roll provided at the bottom of the supply tank, and a roll upper shutter S2 provided between the supply tank and the hulling section. The roll shutter S1 is opened when the upper limit level switch L1 is off and closed when the upper limit level switch L1 is on, and the roll upper shutter S2 is the lower limit level switch L2.
This document describes the technology of opening on and closing off.

Further, in JP-A-59-109250, in an automatic rice polishing apparatus, supply to a supply tank is started when a lower limit level switch S1 of the supply tank is turned off, and supply to a supply tank is performed when an upper limit level switch S2 of the supply tank is turned on. It describes the technology to stop.

(Problems to be Solved by the Invention) Among the above-mentioned known examples, JP-A-53-130157 and JP
In the one disclosed in Japanese Patent Laid-Open No. 57-10758, the stretch shutter S1 is opened when the upper limit level switch L1 is turned off and is closed when the upper limit level switch L1 is turned on. Further, the roll upper shutter S2 of the known example is configured to be opened by turning on the lower limit level switch L2, but since the position of the lower limit level switch L2 is usually low, the roll upper shutter S2 is not fully stored in the supply tank. There is a problem that the tank will be opened and the supply tank may be empty. Further, since the roll upper shutter S2 is closed by turning on the lower limit level switch L2, there is a problem that residual rice occurs between the lower limit level switch L2 and the roll upper shutter S2.

Further, the one described in JP-A-59-109250 is an automatic rice polishing apparatus, in which supply to the supply tank is started when the lower limit level switch S1 of the supply tank is turned off, and supply is performed when the upper limit level switch S2 of the supply tank is turned on. Only the technique of stopping the supply to the tank is described, but it is not a hulling device. Therefore, the problems associated with roll contact, which is a problem of the hulling device, have not been solved.

(Means for Solving the Problem) Therefore, according to the present invention, the tension hopper 3 and the tension shutter 4 are provided.
A paddy rice supply elevator 1 provided with a paddy rice supply tank 9 having an upper limit level switch 17 and a lower limit level switch 18 to which paddy rice is supplied from the elevator 1 for supply, and a lower part of the supply tank 9 A hull portion 25 having a main roll 21 and a sub roll 22, a roll upper shutter 12 and a paddy sensing plate 24 provided between the supply tank 9 and the hull portion 25, and the sub roll 22 as the main roll 21. The extension shutter 4 is opened when the lower limit level switch 18 is turned off and closed when the upper limit level switch 17 is turned on, and the roll upper shutter 12 is turned on when the upper limit level switch 17 is turned on. It is an automatic supply control device in a grain huller which is connected so that it opens when the paddy sensing plate 24 is off and closes when the paddy sensing plate 24 is on, and the auxiliary roll 22 is closed when the paddy sensing plate 24 is on.

(Embodiment) An embodiment of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 1 is a supply elevator, and a bucket conveyor 2 is wound inside. 3 is the supply elevator 1
The retractable hopper 3 is attached to the retractable hopper 3, and the retractable retractable shutter 4 is attached to the retractable hopper 3. Reference numeral 5 denotes a rack formed on the tension shutter 4 to engage a pinion 8 attached to a shaft 7 of a motor 6.

A supply tank 9 is provided at the upper discharge portion of the supply elevator 1. Reference numeral 10 is an overflow pipe provided in the supply tank 9, and the lower end portion of the overflow pipe 10 is connected to the tension hopper 3. A roll upper shutter 12 is attached to the flow-down port 11 at the lower end of the supply tank 9. Reference numeral 13 denotes a rack 13 formed on the lower surface of the roll upper shutter 12, and a pinion 16 attached to a shaft 14 of a motor 14 is meshed with the rack.

17 is an upper limit level switch provided in the supply tank 9,
18 is a lower limit level switch provided in the supply tank, 19
Is a paddy sensing switch provided below the roll upper shutter 12 of the downflow port 11, 20 is a feed roll, 21 is a main roll, 22 is a sub roll, and 23 is a sub roll 22 that is brought into contact with or separated from the main roll 21. The motor, 24 is the paddy sensing plate of the paddy sensing switch 19,
25 is a hulling part.

Therefore, the upper limit level switch 17, the lower limit level switch 18, the tension shutter 4, the roll upper shutter 12 and the auxiliary roll 22 are opened when the tension shutter 4 is turned off. When the level switch 17 is turned on, the shutter is closed and the upper shutter 12
Is opened by turning on the upper limit level switch 17, and the paddy sensing plate
When the paddy sensing plate 24 is turned on, the sub-rolls 22 are closed so that they are close to each other, and when the paddy sensing plate 24 is turned off, they are separated from each other.

Next, the embodiment of FIG. 3 will be described. 26 is a supply conveyor, and 27 is a motor for rotating the supply conveyor 26, which is the same as the motor 6 of FIG. 28 is a paddy sorting section,
29 is a suction blower, 30 is an exhaust port, 31 is a mixed rice outlet, 32 is an elevator, 33 is a switching valve, and 34 is a return tank.

(Operation) Next, the operation will be described.

(Operation of FIG. 1) Referring to the flow chart of FIG. 2, since the lower limit level switch 18 is in a state of not detecting paddy before work, the motor 6 is energized and the pinion 8 is turned counterclockwise. Rotate to open the tension shutter 4, and the paddy sensing plate 24
Since the paddy does not detect paddy, the motor 14 is energized to rotate the pinion 8 counterclockwise, and the roll upper shutter 12 is closed.

When paddy rice is supplied to the tension shutter 3, the elevator 1 for supply 1
When the grain is fried by the bucket conveyor 2 and stored in the supply tank 9, and the paddy rice reaches the upper limit level switch 17 and is turned on, the motor 6 is energized by the upper limit level switch 17 to close the tension shutter 4, and The motor 14 is energized to rotate the pinion 16 in the clockwise direction to open the roll upper shutter 12 and drop the unhulled rice from the downflow port 11.

Falling of this paddy rice is detected by the paddy sensing plate 24, and the motor 23 is energized to bring the auxiliary roll 22 close to the main roll 21 and hull it.

During the hulling operation, when the amount of unhulled rice in the supply tank 9 decreases and the lower limit level switch 18 is turned off, the tension shutter 4 is opened to restart the supply. In addition, at the end of work, the paddy sensing plate
When the pad 24 no longer senses paddy, the roll upper shutter 12 is closed and the sub roll 22 is separated.

(Operation of FIG. 3) Before starting work, the lower limit level switch 18 in the supply tank 9
Is off, the tension shutter 4 of the tension hopper 3 is opened by the lower limit level switch 18, the supply conveyor 26 is rotated and supplied to the supply elevator 1, and stored in the supply tank 9. When the paddy rice in the supply tank 9 reaches the upper limit level switch 17 and is turned on, the tension shutter 4 is closed by the upper limit level switch 17, the supply conveyor 26 is stopped, the roll upper shutter 12 is opened, and the hull portion 25. It is supplied to and hulled.

In the hulling section 25, the rice husk is sucked and removed by the suction blower 29 from the exhaust port 30, and the mixed rice is discharged from the mixed rice outlet 31 to the rice sorting section 28.
, The paddy rice is returned to the feeding elevator 1 and recirculated, and the brown rice is fried by the finishing elevator 32.
One is stored in the return tank 34 via the switching valve 33, and the other is taken out as finished rice. The grains in the return tank 34 are returned to the feeding elevator 1 and re-sorted.

(Effects) Of the above-mentioned known examples, JP-A-53-130157 and JP-B-
In the one disclosed in Japanese Patent No. 57-10758, the tension shutter is opened by turning off the upper limit level switch and closed by turning on the upper limit level switch, but since the upper limit level switch is frequently turned on and off, There is a problem that the built-in shutter is opened and closed too often. Further, the roll upper shutter of the known example is opened by turning on the lower limit level switch. However, since the lower limit level switch is located at a low position, if the roll upper shutter is opened even though the lower limit level switch is not sufficiently stored, the inside of the supply tank becomes empty. Sometimes it becomes.
Further, since the roll upper shutter is closed by turning on the lower limit level switch, there is a problem that the closing method of the roll upper shutter is too early to leave unsoiled rice between the lower limit level switch and the roll upper shutter.

Further, the one described in JP-A-59-109250 is an automatic rice polishing apparatus, in which supply to the supply tank is started when the lower limit level switch of the supply tank is turned off, and when the upper limit level switch of the supply tank is turned on. Since only the technique of stopping the supply is described and the technique is not a hulling device, the problem associated with roll contact, which is a problem of the hulling device, has not been solved.

However, according to the present invention, the paddy shutter 3 is provided with the padding shutter 4, and the paddy rice feeding elevator 1 is provided with the padding rice, and the padding rice is supplied from the feeding elevator 1 to the paddy rice. Supply tank 9, a hull portion 25 having a main roll 21 and a sub roll 22 provided at the lower portion of the supply tank 9, a roll upper shutter 12 provided between the supply tank 9 and the hull portion 25, and In the one comprising a paddy sensing plate 24 and a motor 23 for bringing the sub roll 22 into and out of contact with the main roll 21, the stretch shutter 4 is opened when the lower limit level switch 18 is turned off, and the upper limit level switch 17 is provided.
, The roll upper shutter 12 is opened when the upper limit level switch 17 is turned on and closed when the paddy sensing plate 24 is turned off, and the auxiliary roll 22 is approached when the paddy sensing plate 24 is turned on and is separated when turned off. Since it is an automatic supply control device in the huller connected to each of the
Is opened when the lower limit level switch 18 is turned off and closed when the upper limit level switch 17 is turned on. Therefore, compared with the known example in which the upper limit level switch is turned on and off to open and close the tension shutter, there is a margin for opening and closing the tension shutter 4. It is carried with you. Further, since the roll upper shutter 12 is opened by turning on the upper limit level switch 17, the roll upper shutter 12 is opened in a state in which the paddy rice is sufficiently stored in the supply tank 9, so that the inside of the supply tank is emptied as in the known example. There is nothing to do. In addition, the roll upper shutter 12 is a paddy sensing plate 24.
Since it is closed by turning off, the rice can be entirely hulled without leaving the unpolished rice between the lower limit level switch and the roll upper shutter as in the known example. Also, vice roll
Since the pad 22 is made to approach when the paddy sensing plate 24 is turned on and separated when it is turned off, the auxiliary roll 22 is brought close to the pad only when necessary, and it is unnecessarily spaced to prevent unnecessary wear.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of the first embodiment, FIG. 2 is a flow chart diagram, FIG. 3 is a side view of the second embodiment, and FIG. B is a circuit diagram of the present invention. DESCRIPTION OF SYMBOLS 1 ... Elevator for supply, 2 ... Bucket conveyor, 3 ... Stretching hopper, 4 ... Stretching shutter, 5 ... Rack, 6 ... Motor, 7 ... Shaft, 8 ... Pinion, 9 ... Storage tank, 10 ... Overflow Pipe, 11 ... Downflow port, 12 ... Roll upper shutter, 13 ... Rack, 14 ... Motor, 15 ... Shaft, 16 ... Pinion, 17 ... Upper level switch, 18 ... Lower level switch, 19 ... Paddy sensing switch, 20 ... Repeat Built-in roll, 21 ... Main roll, 22 ... Sub roll, 23 ... Motor, 24 ... Paddy sensing plate, 25 ...
Supply conveyor, 27 ... Motor, 28 ... Paddy sorting section, 29 ... Suction blower, 30 ... Exhaust port, 31 ... Mixed rice outlet, 32 ... Elevator,
33 ... switching valve, 34 ... return tank.

Claims (1)

[Claims] Claims: 1. A paddy rice feeding lifter 1 in which a pulling hopper 3 is provided with a pulling shutter 4, and an upper limit level switch 17 and a lower limit level switch to which the paddy rice is fed from the feeding lifter 1.
Supply tank 9 for hulling portion having 18 and the supply tank 9
Hull part having a main roll 21 and a sub roll 22 provided at the lower part of the
25, the roll upper shutter 12 and the paddy sensing plate 24 provided between the supply tank 9 and the paddy hull 25, and the sub roll
In the motor comprising a motor 23 for moving the roller 22 to and from the main roll 21, the tension shutter 4 is opened when the lower limit level switch 18 is turned off and closed when the upper limit level switch 17 is turned on, and the roll upper shutter 12 is set to the upper limit. An automatic supply control device in a hulling machine that is opened when the level switch 17 is turned on and closed when the paddy sensing plate 24 is turned off, and the sub-rolls 22 are connected so as to approach each other when the paddy sensing plate 24 is turned on and separate when the paddy sensing plate 24 is turned off.