JPS61263652A - Grain guide apparatus for discriminating hulled rice and dehulled rice in huller - 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] (Industrial Application Field) The present invention relates to a grain guide device that guides sample grains to a paddy/rice discrimination sensor, and can be used in a huller, etc. .

(Prior Art) As a means for guiding a portion of the grains subjected to the husking action by a husking device to a paddy/rice discrimination sensor, there is a method that uses a guide tube to guide the part of the grains to the paddy/rice discrimination sensor.

(Problem to be Solved by the Invention) However, with the above-described configuration, the paddy with a light specific gravity that has entered the guide tube may be pulled back by the suction force of the sorting wind flowing through the wind selection chamber. . For that purpose.

If the contamination rate of brown rice is higher than the contamination rate of paddy, it will be determined by the discrimination sensor, making it impossible to perform highly accurate paddy/rice discrimination work.

(Means for Solving the Problems) This invention aims to improve the flow-down effect of paddy and brown rice taken into a guide pipe, and to perform highly accurate paddy/rice discrimination work. We took technical measures such as:

That is, a husking device (1) and a wind sorting device (2) are arranged above and below, and a paddy/rice discrimination sensor (3) is installed on the wind sorting room (2) side.
A portion of the grains subjected to the husking action in the husking device (1) is configured to be guided toward the paddy/rice discrimination sensor (3) through a guide tube (0), and a large number of holes are provided in the guide tube (0). (5)... is provided.

(effect) Inside the grain that has been subjected to the dehulling action in the dehulling device (1).

A part of it flows into the guide pipe (4) and flows down, and then it is determined whether it is paddy or brown rice by the paddy/rice discrimination sensor (3).

(Effects) Since the guide pipe (4) is provided with a large number of holes (5), it is possible to reduce the pullback effect of the falling grains due to the sorting wind, and it is possible to perform highly accurate paddy/rice discrimination work.

(Example) Hereinafter, an example of the present invention will be specifically described based on the drawings.

First, to explain its configuration, the hulling machine (6) has a hulling device (1) and a mixed rice sorting device (
7) (In the example, it is a rotary sorting cylinder type sorting system in which a large number of depressions are formed on the inner circumferential surface and the particles are scooped up and sorted using the depressions.) The mixed rice that has been subjected to the pudding action is air-sorted in a wind-selecting room (2) and then sorted (for example, brown rice and mixed rice) in a mixed rice sorting device (7). .

The peeling device (1) is rotatably installed in a casing (8) with open upper and lower ends, and includes a peeling roll (8) whose distance can be adjusted from one side to the other, and this casing (
8) and a supply funnel (10) provided at the upper end.

Reference numeral (11) is a reflecting plate provided below the dehulling roll (8), which diffuses mixed grains of paddy and brown rice that fall under the dehulling action of the dehulling roll (8). At the lower position of the reflecting plate (11), the upper end is brought close to the reflecting plate (11), the lower end is made to protrude outward from the side plate of the wind selection chamber (2), and a large number of holes (5) are formed. A guide tube (0) is provided. A sensor (3) is installed outside the wind selection chamber (2) to determine whether the sample grains are paddy or rice discharged from the guide tube (4).
) is detachably provided. The discrimination sensor (3) is a transmissive type sensor that consists of a light-emitting element such as a light-emitting diode and a light-receiving element such as a phototransistor, and discriminates whether it is paddy or brown rice based on the amount of light emitted from the light-emitting element. . The grains after discrimination or some of the sample grains overflowing from the sensor unit (3) are configured to be returned from the sensor unit (12) into the selection chamber (2).

Further, a suction fan (13) is rotatably installed at the front end of the wind-selection chamber (2) for wind-selecting the non-shredded material that has been shredded.

Next, to explain its function, the supply funnel (10
) The grains supplied into the chamber are subjected to the dehulling action by the dehulling roll (8), and then fall onto the reflector plate (11) and are dispersed in all directions, but at this time, the suction air of the suction fan (13) After undergoing selection, the rice husks are discharged outside the machine, and some of the grains are collected as sample grains into the guide tube (0) and sent to the discrimination sensor unit.
You will be guided to the (12) side.

Then, a discrimination sensor (3) acts to discriminate whether it is paddy or rice.

When the sample particles flow down the guide tube (4) in this way,
Since this guide tube (0) is provided with a large number of holes (5), the pullback caused by the suction fan (13) can be reduced, and highly accurate discrimination work can be performed. The rice is separated from the rice husks mixed in between the grains by the suction air of the suction fan (13) and collected in the lower sliding rice catcher, and then sent into the mixed rice sorting device (7), where it is collected. Undergo the prescribed sorting work.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially cutaway side view of a rice huller, Fig. 2 is a plan sectional view of the sensor unit, and Fig. 3 is a back sectional view thereof. It is. (1) is a husking device, (2) is a wind sorting device, (3) is a paddy/rice discrimination sensor, (0 is a guide pipe, and (5) is a hole.

Claims (1)

[Claims] A husking device (1) and a wind sorting device (2) are arranged above and below, a paddy/rice discrimination sensor (3) is installed on the wind sorting room (2) side, and the husking device (1) A part of the affected grain is passed through a guide tube (4
) to guide the paddy/rice discrimination sensor (3) side,
A grain guide device for distinguishing between paddy and rice in a huller, which has a large number of holes (5) in the guide pipe (4).