JPS61238382A - Apparatus for discriminating unhulled rice and unpolished rice - 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 [Field of Industrial Application] The present invention relates to a paddy/brown rice discriminating device for discriminating between paddy and brown rice in mixed rice of paddy and brown rice that has been subjected to hulling in a hulling device or the like.

[Conventional technology]

Some are equipped with a discrimination sensor that distinguishes between paddy and brown rice.

[Problems to be solved by the present invention] However, if one discrimination sensor is composed of an optical sensor consisting of a light emitting element and a light receiving element, when the cover covering the discrimination sensor is opened, it will be The sensor signal output may be reduced and the discrimination accuracy may be significantly reduced.

[Means to solve the problem]

This invention attempts to prevent the above-mentioned erroneous detection by stopping the input of the discrimination signal to the arithmetic unit when the cover is opened, and uses the following technical means. We took the following steps.

That is, the outer part of the paddy/brown rice discrimination sensor 1 capable of outputting a signal for discriminating paddy/brown rice to the calculation section is covered with the cover 2;
A structure of a paddy/brown rice discriminating device configured such that a signal for discriminating paddy/brown rice outputted from a paddy/brown rice discriminating sensor 1 is not input to a calculation unit when part or all of the cover 2 is opened. do.

[Effect]

A paddy/brown rice discrimination sensor 1 detects grains and outputs a signal for discriminating paddy/brown rice. Then, the calculation unit that receives this signal determines whether it is paddy or brown rice. Also.

When part or all of the cover 2 is opened, the arithmetic unit does not manually generate a signal.

〔effect〕

Even though it is possible to discriminate between paddy and brown rice, when the cover 2 is opened, the discrimination signal is not input to the arithmetic unit, so erroneous detection can be prevented and the accuracy of discriminating between paddy and brown rice can be improved.

〔Example〕

Hereinafter, one embodiment of the present invention will be specifically described based on the drawings.

First, to explain its structure, the huller 3 is integrally constructed with a huller removing section 4 and a mixed rice sorting section 5 provided in the upper part of the machine body, and a wind sorting part 6 provided in the lower part of the machine body.

Between the hulling section 4 and the mixed rice sorting section 5, there is a hulling section 4.
A mixed rice tank 8 is provided which is connected to a thrower 7 for frying the mixed rice that has been subjected to the hulling process and subjected to the wind selection action in the wind selection section 6.

Inside the mixed rice tank 8, there is an opening at the upper end of a sample pipe 9 from which a portion of the mixed rice can be taken out.
In addition, the lower end opening of this sample pipe 9 is connected to the sensor mounting plate 1.
5 into the supply port 16 provided on the top surface of the device. The supply port 16 communicates with the upper guide end of the gutter 17.

The discrimination sensor l includes a grain guide plate 19 which is vibrated by an excitation device 18, and a light emitting element which emits and receives light from the grains guided by the grain guide plate 19 and outputs a signal for discrimination. 10 and a light receiving element 11, and is detachably attached to the sensor mounting plate 15. In addition,
The sensor mounting plate 15 is detachably attached to the side wall 14 of the wind selection section 6 with screws 20.

Reference numeral 13 denotes a communication port 13 provided in the side wall 14 at a position below the sensor mounting plate 15, and guides it to the side of the grain number sliding helix 12 detected by the optical sensor A. Therefore, the dropped rice that has been hulled in the hulling section 4 is returned to the mixed rice tank 8 by the thrower 7. Further, a microswitch 21 is mounted on the upper part of the sensor mounting plate 15, and an actuator 22 is mounted on the mounting plate 15.
A groove 25 is provided that can protrude upward.

The cover 2 has an L surface A, a front opening, and left and right sides C and 2 integrally formed, and also has the sensor mounting plate 15 and the communication opening 1.
3 in a substantially airtight manner, and is detachably attached to a mounting screw 23 fixed to the sensor mounting plate 15 with a wing nut 24. A groove 24 into which the supply port 16 and the actuator 22 can be fitted is provided on the upper surface of the cover 2.

26 is a signal line 2 provided on the upper surface A of the sensor mounting plate 15.
This is the entrance/exit hole of 7.

To explain the circuit shown in FIG. 6, the signal for distinguishing between paddy and rice detected by the optical sensor A is input to the calculation section, and the microswitch 21 is provided in the middle. The arithmetic unit is a central processing unit (CP) of a microcomputer (not shown) that stores control programs and necessary data, and is equipped with a readable memory (not shown).
U). Therefore, the configuration is such that when the microswitch 21 becomes "oN", the discrimination information is input to the calculation section, and when it becomes "○FFJ", the discrimination information is not input to the calculation section.
In this embodiment, a microswitch 21 is provided between the optical sensor A and the calculation section, but the present invention is not limited to this.

Next, to explain its operation, the mixed rice of paddy and brown rice that has been hulled in the hulling section 4 of the hulling machine 3 is wind-selected in the wind-selecting section 6, and then transported into the mixed rice tank 8 by the thrower 7. The grain is fried. In the wind sorting section 6, the rice husks mixed in the mixed rice are discharged out of the machine by the sorting wind.

Then, some of the grains of the mixed rice fall as sample grains from the sample pipe 9 through the supply port 16 onto the gutter 17, and further, the grains are vibrated by the vibrating device 18 by the gutter 17. You will be guided by a guide board 19. Therefore, on this grain guide plate 19, the grains flow downward while being aligned, fall from the discrimination sensor 1 onto the covering body 2, and then fall onto the side wall 14.
It is guided into the wind selection section 6 through the communication port 13 and falls onto the helix 12. After being conveyed to the machine body side together with the scraped rice that has been hulled in the hulling section 4, it is conveyed to the side of the machine body.
The grains are then fried in the mixed rice tank 8. The sample grains are discriminated one by one by an optical sensor A consisting of a light emitting element 10 and a light receiving element 11 at the lower end of the grain guide plate 19, and this discrimination signal is calculated via a microswitch 21. The rice is taken in by the department, where it is judged whether it is paddy or rice.

In such paddy/rice discrimination work, when the wing nut 24 is removed and the cover 2 is removed, the actuator 22 of the microswitch 21 is connected to the sensor mounting plate 15.
Since the groove 25 protrudes upward and becomes "○FFJ," the signal from the optical sensor A is not input to the calculation section at this time. Therefore, when the cover 2 is removed and the optical sensor A is inspected.

Even if disturbance light such as sunlight is received, erroneous signals will not be input, and a decrease in discrimination accuracy can be prevented.

Next, after completing the inspection and cleaning, set the cover 2 in the predetermined position and fix it with the wing nut 24, and the actuator 2
2 is pressed down on the inner surface of the cover 2 to turn the microswitch 21 into the "ONJ" state. Therefore, by attaching/detaching the cover 2, the discrimination information from the optical sensor A is input to the calculation unit or not. It is possible to change the state.

In addition, the optical sensor A includes the side wall 14, the cover 2, and the sample pipe 9.
Since it is constructed in a substantially sealed state, there is almost no intrusion of disturbance light, and the discrimination accuracy can be improved. Furthermore, since the grains falling from the optical sensor A can be guided into the machine by the cover 2, the structure can be simplified. Moreover, since the optical sensor A can be exposed by opening the cover 2, inspection and cleaning can be easily performed.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a front view of a discrimination sensor, Fig. 2 is a plan view thereof, Fig. 3 is a side view thereof, and Fig. 4 is a diagram of a rice huller. A perspective view, FIG. 5 is a partially cut away side sectional view, and FIG. 6 is a block circuit. (1) shows the paddy/brown rice discrimination sensor, and (2) shows the cover. 1! J40 Akira 5 figure

Claims (1)

[Claims] The outer part of the paddy/brown rice discrimination sensor 1, which can output a signal for discriminating paddy/brown rice to the calculation section, is covered with a cover 2, and when the cover 2 is partially or completely opened, the paddy/brown rice discrimination sensor is activated. 1
A paddy/brown rice discriminating device configured such that a signal for discriminating paddy/brown rice output from the paddy/brown rice discriminator is not input to the calculation section.