JPH067932B2 - Paddy / rice discrimination device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a paddy / rice discriminating apparatus which can be used for a paddy huller or the like.

[Conventional technology]

When the supply of sample grain of paddy and brown rice is interrupted,
The data for rice discrimination was being retaken.

[Problems to be Solved by the Invention] However, in such a configuration, the temporary work is interrupted,
Even when the work is started again, it takes time to re-collect the data, which may reduce the work efficiency.

[Means for solving problems]

The present invention aims to improve work efficiency by saving the data for discrimination before the stop when the time from the work stop to the restart of work is short, and the following technical Measures have been taken.

That is, when a paddy / rice discriminating means capable of discriminating between paddy and brown rice and a data storage means capable of storing the discriminating data are provided, and when the output of the discriminating data from the paddy / rice discriminating means is stopped. The data storage means has a structure of a paddy / rice discrimination device configured to store the discrimination data before the stop for a predetermined time.

[Operation] When the data for discrimination is stopped from the discriminating means for discriminating between paddy and brown rice, the data holding means stores the data for discriminating between paddy and brown rice before the stop for the determination time.

〔effect〕

Therefore, when the work is started again within this time and the sample grains are sent, it is possible to distinguish between the paddy and the brown rice by using the data for the determination before the stop,
Work interruption time can be shortened and work efficiency can be improved.

〔Example〕

An embodiment of the present invention will be specifically described below with reference to the drawings.

First, the structure thereof will be described. The hulling machine 1 includes a removing device 2 on the upper part of the machine body, and a mixed rice sorting device 3 having a cylindrical rotary sorting machine having a large number of dents on its inner peripheral surface.
The wind selecting device 4 is provided at the lower part of the machine body. Further, the removing device 2 is provided with a removing roll 6 installed in the casing 5 so as to be rotatable and selectable in the arrow direction. In addition, one of the removing rolls 6 is provided on the middle part of the movable plate 7 whose lower part is pivotally attached. A screw portion 9 formed on one end of the adjusting shaft 8 is screwed onto the upper end of the movable plate 7. A pin 10 is inserted into and fixed to the other end of the adjusting shaft 8, and both ends of the pin 10 are formed on an inner surface of a rotating case 11 which internally houses the end of the adjusting shaft 8. It is provided so that it can be engaged with the rib 12. The side of the rotating case 11 has an adjusting drive gear 1 that meshes with a motor gear 14 attached to the shaft end of the geared motor 13.
5 is detachably fixed with screws. Reference numeral 16 is a restriction bolt that restricts the movement of the rotating case 11 in the thrust direction.

Therefore, when the geared motor 13 rotates, this rotational power is transmitted to the rotary case 11 via the adjustment drive gear 15 meshing with the motor gear 13, and therefore the rotary case 7
With this, the rib 12 rotates, and the pin 10 and this pin 10
The adjustment shaft 8 that is integrally configured with is rotated. When the geared motor 13 is in the normal rotation, the screwing portion of the movable plate 7 moves in the arrow A direction around the pivotal portion, so that the removing roll A also moves in the same direction. Widen the excitement with the other roll. On the contrary, when the geared motor 13 is rotated in the reverse direction, the movable plate 7 and the removing roll A move in the direction opposite to the arrow A direction to narrow the roll gap or make contact with each other.

Further, a funnel 17 is provided on the upper part of the casing 5, and a grain sensor 18 for detecting that the amount of grains has fallen below a predetermined amount is provided on the lower part of the funnel 17.

Further, on the outer wall of the wind separation device 4, the removing roll 6
A paddy / rice discriminating device 19 for taking in sample grains, which is a part of the scrapped rice that has been subjected to the degumming process in (1) and discriminating between paddy and brown rice, is detachably provided. Then, the paddy / rice discrimination device 19
Is equipped with a photo sensor (not shown) composed of a light emitting element and a light receiving element, and a reference voltage (for example, 70% of the measured maximum voltage of 70% of the measured maximum voltage is provided by the photo sensor at the beginning of work.
The above voltage is used as paddy, and the voltage below that is used as brown rice. )
Is configured to measure.

Reference numeral 20 denotes a shutter provided between the removing roll 6 and the funnel 17, and a shutter sensor 21 (a limit switch in the embodiment) for detecting opening / closing of the shutter 20 is provided near the shutter. Reference numeral 22 is a thrower that supplies the scraped rice to the mixed rice sorting apparatus 3, and 23 is a thrower that lifts the finished rice sorted by the mixed rice sorting apparatus 3 to the outside of the machine.

Explaining the block circuit of FIG. 3, reference numeral 24 denotes an arithmetic control unit (hereinafter, referred to as CPU) of a microcomputer having a memory in which necessary data and a control program are built.
Then, arithmetic theoretical calculation and comparison calculation are performed. And the C
Information input to the PU 24 includes paddy / rice sorting device 1
There are paddy / rice discrimination information detected in 9 and data clear support information output from the data clear switch 25.
In addition, there is no grain information output from the grain sensor 18 and shutter closing information output from the shutter sensor 21.

The CPU 24 has the functions described below. That is,
It takes in paddy / rice selection information and calculates the reference voltage for discriminating paddy / brown rice. The measured voltage and the reference voltage are compared and calculated to determine whether it is paddy or brown rice. After the removal rate is calculated when the measured data reaches a predetermined number, it is compared and calculated with a preset removal rate, and a roll "open" (normal rotation) signal is output to the motor gear 13 or a roll " The groove 25 is provided so that it can project toward the output of "closed" (reverse rotation).

Next, the control operation will be described using the float chart of FIG. 4 together. When the shutter 20 is opened after the grain is supplied into the funnel 17 (at this time, the grain sensor 18 is “OFF”), The grains are subjected to the removing action by the rotating removing roll 6 and fall. Then, after being wind-selected in the wind-selecting chamber 4, it is fried in the mixed-rice selecting device 3 by the thrower 22 and is then separated into brown rice and mixed rice. Then, the brown rice is wind-selected in the wind-selecting chamber 4 and then discharged to the outside of the machine by the thrower 23.

In such an operation, a part of the scraped rice scraped off by the removing roll 6 is fed into the paddy / rice discrimination device 19.
Then, first, the discrimination data (discrimination voltage) for discriminating between the paddy and the brown rice is measured, and then the discrimination data and the measured voltage are compared with each other to determine the paddy and the brown rice. To be determined. Then, when the number of measured particles reaches a predetermined number, the removal rate is calculated, and a comparison operation with a preset removal rate is performed to output a drive command signal to the motor forward rotation circuit or the motor reverse rotation circuit to set the roll gap. Adjust. If the difference between the calculated removal rate and the set removal rate is within a predetermined range, the CPU 2
Since the drive command signal is not output from No. 4, the roll gap is not adjusted.

In this removal rate control, the discrimination data for discriminating between paddy and rice is calculated in the initial stage of the work and stored in the memory. From the shutter close information to the CPU 24
Is input (step 10), the timer set is started (step 20). Subsequently, if the data clear switch is "ON", the data is cleared and the original work is returned. However, if it is "OFF" (step 30), it is judged whether the timer is up (step 4).
0). If the timer is up, the data is cleared (step 50). If not, the process returns to step 30.

Therefore, even if the work is finished (or interrupted), the data for distinguishing between paddy and brown rice is stored for a predetermined time, so if the work is restarted during this period, this data will be saved. It can be used as a reference value, and it is not necessary to retake the data for discrimination each time, and the work efficiency can be improved.

Further, even after it is determined that the work is completed, the data can be cleared by operating the data clear switch 25, so that the work can be started earlier.

[Brief description of drawings]

1 is a front view of a huller, FIG. 2 is a partially cutaway front view of a roll gap adjusting device, and FIG. 3 is a block circuit. FIG. 4 is a flowchart.

Claims (1)

[Claims] 1. A paddy / rice discriminating unit capable of discriminating between paddy rice and brown rice, and a data storage unit capable of storing the discriminating data, wherein the discriminating data is output from the paddy / rice discriminating unit. When stopped, a paddy / rice discriminating device in which the data storage means is configured to store the discrimination data before the suspension for a predetermined time.