JPS62279846A - Control unit of hulling adjusting facilities - 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 (a) Field of Industrial Application The present invention relates to a control device for a rice hulling adjustment facility with a large processing capacity that is used as a shared facility or the like.

(b) Prior Art Conventionally, as an automatic control device for a rice hulling adjustment facility, a technology such as that disclosed in Japanese Patent Publication No. 60-53652 has been known.

However, in the past, improvements have been made to the automatic flow rate control device for the hulling device and the swing sorting device, but in the previous process, from the drying device to the storage cooling tank and the hulling device. There was no technology to control the flow of paddy.

In addition, in the control device of the conventional rice hulling adjustment facility,
The flow rate of paddy and brown rice was adjusted by opening and closing the shutter device. Therefore, in order to reduce the flow rate, it is necessary to reduce the opening/closing width of the shutter device, and at that time, grains with straw and straw waste are caught in the narrowed exit part of the kernel, creating a bridging condition and causing the paddy to deteriorate. It was impossible to remove it by free fall.

(c) Problems to be Solved by the Invention The purpose of the present invention is to solve the problem in the later stages of the belt conveyor, which is prone to clogging and spillage in the overall flow, especially in conventional rice hulling adjustment facilities. By sensing changes in the flow rate of a certain hulling device, the belt conveyor 3
The speed of the rice huller is adjusted slowly and rapidly so that the amount of paddy that can be processed by the hulling device is always conveyed.

As a result, even when a load is placed on the paddy elevator and the flow of paddy is adjusted to a low level, there is no need to adjust the flow rate by adjusting the opening of the shutter device as in the past, and the opening of the shutter device, which previously occurred, is narrow. It is possible to eliminate clogging in the shutter device part that occurs due to overcrowding.

(d) Means for Solving the Problems The objects of the present invention are as described above. Next, the configuration for achieving the objects will be explained.

A belt conveyor 3 for conveying the paddy discharged through the shutter device 2 is arranged at the lower part of the storage cooling tank 1, and the paddy after being conveyed by the belt conveyor 3 is hoisted by a paddy elevator 6, and a hulling device is used. 7, a paddy quantity sensor is arranged above the paddy hulling device 7, and the speed of the belt conveyor 3 can be changed to a speed including stopping based on a feedback signal from the paddy quantity sensor. It is.

(E) Embodiment The object and structure of the present invention are as described above. Next, the structure and operation of the embodiment shown in the attached drawings will be explained.

FIG. 1 is an overall view of a control device for a hulling adjustment facility in an embodiment in which the level sensor 10 is used as the paddy quantity sensor, and FIG. 2 is a drawing of an embodiment in which the paddy quantity sensor is constituted by a flow valve sensor 21.

The embodiment shown in the drawing of FIG. 1 will be explained.

After being dried by the drying device, the paddy is fried by an elevator attached to the drying device, and stored in cooling tanks 1a and 1b.
-The heat is stored in the IC and released after drying.

Shutter devices 2a, 2b, and 2C are arranged at the bottom of the storage and cooling tanks 1a, 1b, and IC, respectively, to gradually remove the paddy stored in the storage and cooling tanks 1a, 1b, and IC. and placed on the belt conveyor 3, and the belt conveyor 3 is connected to the belt conveyor motor 4.
The paddy is driven and moved by the paddy elevator 6, and is fed into the hopper 18 of the paddy elevator 6.

The paddy hoisted by the paddy elevator 6 is put into a paddy tank 8 and stored, and is supplied between the rubber rolls of the hulling device 7 in an amount that varies depending on the opening degree of the hulling device shaft 9. be.

The mixed rice hulled by the hulling device 7 is transferred to the wind sorting device 11.
The rice husks are suctioned and sorted, and the mixed rice portion is fed into a mixed rice hopper 13 by a mixed rice elevator 12.

M? The R mixed rice hopper 13 is provided with an upper limit sensor 13a and a lower limit sensor 13b.
The huller shutter 9 is controlled by the amount within 3.

The mixed rice is discharged from the mixed rice hopper 13 onto the shaking sorting device 14, where it is separated into brown rice, mixed rice, and paddy.
6 and then put into brown rice tanks 17a and 17b.

Further, the mixed rice is again fed into the mixed rice hopper 13 from the mixed rice elevator 12, and is then sorted by the oscillating sorting device 14. In addition, the paddy is returned to the paddy amount JlJ6,
The rice is hulled again by the hulling device 7.

In such a configuration, the control device for the rice hulling adjustment facility of the present invention is configured as follows.

A level sensor 10 is disposed above the portion where the grain is lifted by the paddy elevator 6 and thrown into the paddy tank 8.

As mentioned above, the exit of the paddy tank is through the paddy tank shutter 9.
It is opened and closed by The signals for opening and closing the paddy tank shutter 9 are controlled based on signals from the upper and lower limit sensors 13a and L3b of the mixed rice dumper 13.

Therefore, by opening and closing the paddy tank shutter 9, the level of paddy in the paddy tank 8 rises and falls.

In the present invention, the speed of the belt conveyor motor 4 is changed using the level sensor 10 that detects the upper end position of the level so that the level is always at a constant position. By changing the speed of the belt conveyor motor 4, the speed of the belt conveyor 3 changes, and the amount of paddy placed thereon and conveyed changes.

Naturally, the hulling device shutter 9 is closed, and the paddy tank 8
When the level inside increases, the speed of the belt conveyor motor 4 becomes O and is stopped.

σFirstly, the embodiment shown in FIG. 2 will be explained.

In this embodiment, the paddy tank 8 is not provided. Instead, a flow valve sensor 21 is provided as a grain amount sensor. The flow rate valve sensor 21 adjusts the flow rate to a constant level.

The flow rate valve sensor 21 itself is automatically adjusted by the adjustment motor 22 based on signals from the upper and lower limit sensors 13a and 13b of the mixed rice hopper 13, as described above. Then, the rotation of the belt conveyor motor 4 is increased by iNflff so that the adjusted amount flows through the flow valve sensor 21. Therefore, when the set amount of the flow rate valve sensor 21 changes, the rotational speed of the belt conveyor mowers 1'-4 and thus the speed of the belt conveyor 3 change.

Further, when the huller shutter 9 is closed, the sensor switch 9a detects the closure of the huller shutter 9, and the belt conveyor motor 4 is also
It is configured so that it also stops.

By changing the speed of the belt conveyor 3 by the belt conveyor motor 4, even if the shutter device 2 is fully open, the paddy discharged from the storage cooling tank 1 forms an angle of repose above the belt conveyor 3. , the belt conveyor 3 is configured to have a width beyond which it is impossible to discharge any more.

Therefore, the same effect as when the amount is reduced by the shutter device 2 occurs depending on the speed of the belt conveyor 3.

(F) Effects of the Invention Since the present invention is constructed as described above, it has the following effects.

First, instead of adjusting the discharge amount of the storage cooling tank 1 by adjusting the opening degree of the shutter device 2 of the storage cooling tank 1 as in the past, the opening degree of the shutter device W2 remains unchanged. Since the flow rate is adjusted by adjusting the speed of the belt conveyor 3, clogging caused by paddy and straw waste that occurs when the opening degree of the shutter device 2 is narrowed can be eliminated. It was possible to do so.

Second, in the case of changing the opening degree of the conventional shutter device 2, the speed of the belt conveyor 3 remains the same, but if the force decreases by the amount (by 80 cm), the paddy will jump up and scatter on the belt conveyor 3. However, in the case of the present invention, the angle of repose of the paddy produced on the belt conveyor 3 remains in the optimum state and does not change, and the paddy at a constant speed as described above does not change. This makes it possible to eliminate the leakage of paddy that occurs when different amounts of paddy are discharged onto the belt conveyor 3 that moves on the belt conveyor 3.

Thirdly, by providing the paddy amount sensor as the level sensor 10 or the flow rate valve sensor 21 on the top of the hulling device 7, even when the paddy tank 8 is arranged as shown in FIG.
A small-capacity tank would be sufficient, and by configuring it as in the embodiment shown in Figure 2, it would be possible to create a system that would not clog the hulling device 7 even without the paddy tank 8. .

Fourthly, the amount of input to the hulling device 7 is not adjusted only by turning the belt conveyor 3 ON and OFF as in the past;
N-OFF only occurs when the paddy tank shunter 9 is closed, and in other cases it is adjusted by increasing or decreasing the speed of the belt conveyor 3, so it is better to avoid turning the motor on and off repeatedly. It doesn't take too much effort.

[Brief explanation of drawings]

Fig. 1 is an overall view of the control device of the hulling adjustment facility in an example in which the level sensor 10 is used as the paddy quantity sensor, and Fig. 2 is the overall view of the control device for the hulling adjustment facility in which the paddy quantity sensor is used as the level sensor 10. It is a drawing of an example constituted by an A quantity valve sensor. 1... Storage cooling tank 2... Shutter device 3... Belt conveyor 4... Belt conveyor motor 6... Paddy elevator 7... Hulling device 8... Paddy tank 9... Hulling device shutter 10...Level sensor 21...Flow rate valve sensor

Claims (1)

[Claims] A belt conveyor 3 for conveying the paddy discharged through the shutter device 2 is arranged at the lower part of the storage cooling tank 1, and the paddy after being conveyed by the belt conveyor 3 is hoisted by a paddy elevator 6, and a hulling device is used. 7, a paddy quantity sensor is arranged above the paddy hulling device 7, and the speed of the belt conveyor 3 can be changed to a speed including stopping based on a feedback signal from the paddy quantity sensor. A control device for a rice hulling adjustment facility characterized by: