JPH07328459A - Husker - Google Patents

Abstract

(57) [Summary] [Purpose] At the start of work, the rocking sorter was designed so that brown rice collected from the rocking sorter can be returned to the mixed rice tank until the rocking sorter enters steady operation. A switching shutter is provided between the brown rice recovery unit and the mixed rice recovery unit to provide a connection path through which the recovered brown rice can be discharged to the mixed rice recovery unit, and to selectively open and close the inlet of the connection path and the discharge port of the brown rice recovery unit. In the hulling machine provided with, damage to brown rice due to forgetting to switch the switching shutter is suppressed. [Configuration] of paddy tank 1 which is closed on the basis of the detection result of the mixing US tank 4 in the intrinsic sensor S ₄ of the opening and closing shutter 1a
The sensor S ₁ for detecting the closed state of the
A delay stop means T for stopping the operation of the huller A after a set time based on the detection result of ₁ is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a huller.

[0002]

2. Description of the Related Art A conventional hulling machine is disclosed in Japanese Patent Laid-Open No. 24-52424.
As shown in Japanese Patent Publication No. 4, a paddy tank for storing paddy,
The mixed rice tank that stores the grains that have been removed from the paddy device at the bottom of the paddy tank, and the grains from the mixed rice tank are brown rice,
Equipped with an oscillating sorting device for oscillating and sorting into 3 types of mixed rice of brown rice and paddy, and paddy, brown rice is discharged out of the machine in the processed material sorted by the oscillating sorting device, and the mixture of brown rice and paddy is mixed. Rice is returned to the mixed rice tank via a transfer device, and paddy is returned to the paddy tank via a transfer device, and a plurality of level sensors are provided in the mixed rice tank, and the detection result of the upper limit sensor is detected. Based on the above, the opening and closing shutter of the paddy tank is closed to stop the supply to the mixed rice tank, and based on the detection result of the upper limit sensor in the middle part, the opening of the feed amount adjusting plate of the paddy tank is adjusted to the mixed rice tank. Control device to control the supply amount of the lower limit sensor based on the detection result of the lower limit sensor and stop the drive of the rocking sorting device, and close the open / close shutter of the paddy tank based on the detection result of the upper limit sensor. Stop the supply to the mixed rice tank Prevents grains from overflowing from the rice mixing tank, and controls the amount of supply from the paddy tank to the mixed rice tank based on the detection result of the upper limit sensor in the middle part to always maintain the storage amount in the tank at the set level However, the drive of the rocking / sorting device is stopped based on the detection result of the lower limit sensor at the lower part to prevent the rocking / sorting device from being defectively sorted.

Further, the conventional hulling machine is disclosed in Japanese Patent Laid-Open No. 3-
As shown in Japanese Patent No. 77649, a connection route is provided which allows the recovered brown rice to be discharged to the mixed rice recovery unit across the brown rice recovery unit and the mixed rice recovery unit of the swing sorting device, and the inlet of the connection route and the brown rice recovery By providing a switching shutter that selectively opens and closes the discharge port of the unit, at the start of work with a small amount of processing, the discharge port of the brown rice recovery unit is closed and the recovered brown rice is discharged to the mixed rice recovery unit for swing selection. It is designed to be reprocessed by the device. In other words, at the start of work with a small amount of treatment, since a large amount of paddy is mixed in the recovered brown rice, the recovered brown rice is returned to the mixed rice recovery section for reprocessing.

[0004]

DISCLOSURE OF THE INVENTION When the rocking sorting device enters a steady operation after a certain time has passed from the start of work, that is,
When the hulling machine enters a steady operation in which the sorting process can be performed well, the discharge port of the brown rice recovery unit is opened and the recovered brown rice is discharged to the outside of the machine. May occur.

In such a case, if the limit sensor in the mixed rice tank detects a full state due to the supply amount from the paddy tank and the reduction amount from the rocking sorting device due to forgetting to switch the shutter, the limit sensor detects Although the opening / closing shutter of the paddy tank is closed to stop the supply amount to the mixed rice tank, the brown rice of the rocking sorting device is returned to the mixed rice tank through the connection route, so that it is circulated many times. Moreover, there is a disadvantage that the brown rice is damaged by the screw conveyor of the conveying device.

An object of the present invention is to suppress damage to brown rice due to forgetting to switch a switching shutter that selectively opens and closes the inlet of the connection path and the outlet of the brown rice collecting unit.

[0007]

A first means of the present invention for achieving the above object is to provide a sensor for detecting a closed state of an opening / closing shutter, and a huller after a set time based on the detection result of the sensor. The point is that a delay stop means for stopping the operation of is provided.

A second means of the present invention for achieving the above object is, in addition to the first means, provided with an alarm device which operates based on a detection result of a sensor which detects a closed state of the opening / closing shutter. It is in.

[0009]

According to the first means, when the limit sensor in the mixed rice tank detects a full state due to forgetting to switch the connection path switching shutter, the open / close shutter of the paddy tank is closed, and the open / close shutter is closed. When the sensor detects that the delay means is activated, the hulling machine is turned off after a preset time, and the circulation of brown rice is stopped.

According to the second means, when the sensor detects the closed state of the open / close shutter, the alarm device is activated,
Hearing by the buzzer or visual perception by the lamp can inform the operator that the shutter has been forgotten to be switched, whereby the operator can immediately switch the shutter to prevent the brown rice from being circulated.

[0011]

As a result of the above construction, damage to brown rice due to forgetting to switch the shutter of the connection path connecting the brown rice collecting section and the mixed rice collecting section of the rocking sorting device can be suppressed.

When an alarm device which operates in accordance with the detection result of the sensor for detecting the closed state of the open / close shutter is provided, the circulation of brown rice can be prevented without stopping the huller, It is possible to avoid work loss at the time of restarting the operation due to stopping the huller.

[0013]

1 and 2 show a huller, which is a paddy tank 1.
Hulling device 2, which scrapes the paddy supplied from the plant into brown rice,
A wind separator 3 for removing rice husks and rice porridge from a mixture of rice and brown rice,
The first traverse screw conveyor 7a and the first lifting bucket conveyor 7 are guided by the first falling path R ₁ of the wind sorting device 3.
The mixed rice tank 4 that stores the grains that have been pumped via b, the grains from the mixed rice tank 4 are shaken, and the specific gravity difference is sorted into three types: brown rice, a mixture of paddy and brown rice, and paddy. An oscillating sorting device 5 and a collecting unit 6 for separating and collecting three types of selected brown rice, mixed rice, and paddy are provided.

The wind selecting device 3 is supplied from the hulling device 2.
A plurality of falling plates 3a and a suction flap for receiving the processed products
A mixture of paddy and brown rice with the highest specific gravity
Is the first fall path R₁To the next, then the rice cake with a large specific gravity
Is the second fall path R₂Guide to rice husk with lighter specific gravity
Is the third route R₃To the second drop path R ₂
The rice husk is discharged to the outside of the machine via the third route R₃, Suction
It is discharged to the outside of the machine through the fan 3b and the rice husk discharge tube 3c.
Growling.

The collecting unit 6 comprises a mixed rice collecting unit 7, a paddy collecting unit 8, and a brown rice collecting unit 9. The mixed rice collected in the mixed rice collecting unit 7 is a first screw conveyor as a conveying device. 7a and the first bucket conveyor 7b to return the mixed rice to the mixed rice tank 4 and perform a sorting process again.
The unhulled rice collected in the above step is fed through the second bucket conveyor 8b as a carrying device, returned to the hulling device 2 and subjected to depouring again, and the unpolished rice collected in the unhulled rice collecting unit 9 is transported. The second screw conveyor 9a as an apparatus and the third bucket conveyor 9b are used to lift the material and discharge it from the upper discharge port 9c to the outside of the machine.

The upper part of the brown rice collecting section 9 and the mixed rice collecting section 8
Is connected via a brown rice reducing pipe 10 as a connecting path constituting a brown rice reducing route, and the brown rice reducing pipe 10 is provided between an inlet 10a of the brown rice reducing pipe 10 and an outlet 9c of the brown rice collecting unit 9. A manually operated switching shutter 11 that selectively opens and closes the inlet 10a of the pipe 10 and the outlet 9c of the brown rice recovery unit 9 is provided, and brown rice is mixed with rice in the initial stage of the start of sorting when the sorting performance is not sufficient. Tank 4
Can be reduced to.

In the middle of the third bucket conveyor 9b and the third route R ₃ of the wind selecting device 3, the rice husk suction pipe 1 is provided.
2 is connected via the third bucket conveyor 9b
The rice husks are sucked from the unpolished brown rice and discharged out of the machine.

The mixed rice of brown rice and paddy stored in the mixed rice tank 4 is rocked with a plurality of upper and lower rocking plates 5a in a state where the outflow amount per unit time is adjusted to a set amount. It is adapted to be supplied to the sorting device 5.

At the lower end of the paddy tank 1, an electromagnetically operated opening / closing shutter 1a for stopping the grain supply from the paddy tank 1 to the paddy hulling device 2 and the open / closed state of the opening / closing shutter 1a are detected. A limit switch S ₁ is provided as a detection sensor.

The hulling device 2 comprises a pair of left and right rollers 2.
a and 2a are arranged at a set interval, and are rotationally driven in the opposite directions with their peripheral velocities different, and the paddy passes between the rollers 2a and 2a. The rice husks are removed and removed.

Between the open / close shutter 1a of the paddy tank 1 and the rollers 2a, 2a, a swinging feed amount adjusting plate for changing and adjusting the feed amount of the grain to the feeding roll 1b and the grain hulling device 2. 1c, an electric motor M ₁ for swinging the supply amount adjusting plate 1c, and a potentiometer S ₂ as an opening detecting sensor for detecting the opening of the supply amount adjusting plate 1c. The amount of processing per unit time in the hulling device 2 can be changed and adjusted by changing and adjusting the opening degree of the amount adjusting plate 1c.

The inside of the mixed rice tank 4 has a level detector.
Three sensors S as output sensors S _Four~ S₆Is provided
ing. In other words, from the upper limit corresponding to the full storage
Limit sensor S that detects whether it is large or not_FourAnd the storage amount
Lower bound to detect if less than lower bound corresponding to approximately empty
Sensor S₆And both sensors S_Four, S₆Located in the middle of
Upper limit sensor that keeps the storage amount in the tank in an appropriate state
S_FiveIs provided.

Each of the sensors S _{4 to} S ₆ is of a pressure sensitive type and is configured to output an ON signal when it is detected that the pressure is higher than a set pressure. That is, in the ON state, it is detected that the storage amount is above the sensor installation location, and the OF
In the F state, it is detected that the storage amount is below the sensor installation location.

Further, the switching shutter 11 is provided with a limit switch S ₂ as a detection sensor for detecting the open / closed state of the switching shutter 11.

Then, based on the detection information of each of the sensors S _{0 to} S ₆ , while controlling the operation of each part while automatically adjusting the grain supply amount of the grain hulling device 2, a control using a microcomputer is performed. A device C is provided.

Next, the operation of the controller C will be described.

Whether the limit sensor S ₄ is OFF or ON
It is determined whether or not the storage amount of the mixed rice tank 4 has reached the upper limit based on whether or not

When the limit sensor S ₄ is turned on and the storage amount of the mixed rice tank 4 reaches the upper limit, the opening / closing shutter 1a of the paddy tank 1 is closed to supply the grain to the paddy huller 2. To stop.

If the storage amount has not reached the upper limit, whether the storage amount in the mixed rice tank 4 has reached the lower limit based on whether the lower limit sensor S ₆ is ON or OFF. To determine.

When the lower limit sensor S ₆ is turned off and the storage amount of the mixed rice tank 4 reaches the lower limit, the electric motor M ₂ as a driving device of the swing sorting device 5 is stopped.

When the storage amount is between the upper limit and the lower limit, the increase / decrease of the supply amount is determined based on the ON / OFF change of the upper limit sensor S ₅ .

That is, when the upper limit sensor S ₅ changes from OFF to ON, the supply amount is reduced and ON to O
When it changes to FF, the supply amount is increased. If there is no ON / OFF change, the current adjustment state is maintained.

When the open / close shutter 1a of the paddy tank 1 is closed based on the detection result of the limit sensor S ₄ , the detection sensor S ₁ for detecting the open / closed state of the open / close shutter 1a.
Is turned on, a timer T as a delay stop means built in the control device C is activated, a buzzer B as an alarm device sounds, and the rice huller is powered off after a set time. There is.

When the switching shutter 11 is opened within the set time of the timer T, the detection sensor S ₂ for detecting the open / closed state of the switching shutter 11 is turned on and the operation of the timer T is released. Becomes

[Other Embodiments] As the delay stop means, a mechanical timer may be operated.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a front view of a huller.

FIG. 2 is a side view of the same.

FIG. 3 is a block diagram.

[Fig. 4] Flow chart

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Paddy tank 1a Opening / closing shutter 1c Feeding amount adjusting plate 2 Rice hulling device 4 Mixed rice tank 5 Swing sorting device 7b Conveying device 8 Mixed rice collecting part 8b Conveying device 9 Brown rice collecting part 9c Discharge port 10 Connection route 10a Inlet 11 Switching shutter A hulling machine C control device M ₂ drive device S ₁ sensor S ₂ sensor S _{4 to} S ₆ sensor T delay stop means

Claims (2)

[Claims] 1. A mixed rice tank (1) for storing paddy, and a mixed rice tank (4) for storing the grains removed from the paddy hulling device (2) under the paddy tank (1). Rice tank (4)
A swing sorter (5) for swing-sorting the grains from the above into three types of brown rice, mixed rice of brown rice and paddy, and paddy is provided, and among the processed products sorted by the swing sorter (5). The brown rice is discharged to the outside of the machine, the mixed rice of brown rice and paddy is returned to the mixed rice tank (4) through the carrier device (7b), and the paddy rice is fed through the carrier device (8b) into the paddy tank (1). ) And a plurality of level sensors (S ₄ ~) in the mixed rice tank (4).
The S ₆₎ provided to stop the supply to the mixing rice tank by closing the opening and closing shutter (1a) of paddy tank (1) (4) based on a detection result of the upper extreme sensor (S _4), the intermediate portion Based on the detection result of the upper limit sensor (S ₅ ), the opening of the feed amount adjusting plate (1c) of the paddy tank (1) is adjusted to control the supply amount to the mixed rice tank (4), and the lower limit sensor of the lower part (S ₆ )
Based on the detection result of the driving device (M) of the swing selection device (5).
₂ ) A control device (C) for stopping the operation is further provided, and further, a brown rice collecting part (9) and a mixed rice collecting part (8) of the rocking sorting device (5).
A connecting path (10) capable of discharging the recovered brown rice to the mixed rice collecting section (8) is provided, and an inlet (10a) of the connecting path (10) and an outlet (9c) of the brown rice collecting section (9). In a hulling machine provided with a switching shutter (11) for selectively opening and closing, a sensor (S ₁ ) for detecting the closed state of the opening and closing shutter (1a) is provided, and this sensor (S ₁ )
A hulling machine provided with a delay stop means (T) for stopping the operation of the hulling machine (A) after a set time based on the detection result. 2. The huller according to claim 1, further comprising an alarm device (B) which operates based on a detection result of a sensor (S ₁ ) for detecting a closed state of the opening / closing shutter (1a).