JPH0441938Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is used to remove dust and foreign substances such as pebbles from mixed rice after depudding air sorting. This invention relates to a foreign matter removal device.

(b) Prior Art Conventionally, as a structure for removing mixed rice after dehulling air sorting in a huller, for example, as disclosed in Japanese Utility Model Application Publication No. 58-23642, This is intended to remove dust, including dust, that is generated when the mixed rice is lifted up by a grain lifting machine after defecation wind sorting, and is intended to remove foreign substances other than dust mixed in the mixed rice. Even if it is, it cannot be taken out of the machine. In addition, it is a technology that collects and removes foreign substances mixed in the paddy without passing through the mesh when paddy is selected in the sorting section from the mixed rice after the dehulling process and returned to the dehulling section. As Utsukai 61
It is disclosed in the publication No.-44234. In other words,
In conventional systems, it is not possible to remove both dust and foreign matter from the machine using a single component.

(c) Problems to be solved by the invention As described above, with the conventional structure, one removes the dust mixed in the mixed rice, and the other removes the dust mixed in the paddy that is returned to the hulling section after the husking wind sorting. Although methods for removing foreign matter are known as individual techniques, the present invention removes dust and foreign matter mixed in the mixed rice after depuration wind sorting before supplying it to the sorting section. We aim to simplify and downsize the structure by removing both the constituents and remove foreign substances before sorting mixed rice into brown rice and paddy, thereby contributing to improving the performance of the sorting process in the sorting section. It was designed for this purpose.

(d) Means for solving the problem In order to achieve the above object, the present invention is constructed as follows.

That is, there is a grain flow path in which a sieve wire having sieve openings through which the grains pass is installed below the grain receiving chamber, and an outlet is opened in the lower part, and the upper part communicates with the upper side of the grain receiving chamber. A dust and foreign matter removal passage is provided, and a spout of a grain lifting machine for lifting the mixed rice after defecation wind sorting is seen into the grain receiving chamber. communicating the middle part, and extending the tip of the sieve wire into the dust foreign matter removal path through the communicating part,
In addition, the dust and foreign matter removal path from the tip of the sieve wire to the removal port is configured to communicate with the air suction path.

(e) Function With this structure, the mixed rice after the de-pull wind selection is lifted up by the grain lifting machine and thrown into the grain receiving chamber from the dumping port. When this mixed rice is fed, the mixed rice and foreign objects such as dust and pebbles mixed in this mixed rice collide with the side wall that constitutes the grain receiving chamber, and the mixed rice and foreign objects flow down the grain flow path and become dust. While floating, the upper part of the grain receiving chamber is exposed and enters the dust foreign matter removal path. Of the mixed rice and foreign matter flowing down the grain channel, the mixed rice passes between the sieve lines and is supplied to the sorting section, but the foreign matter that cannot pass between the lines passes through the communication area and passes over the sieve line. It flows to the tip, flows into the middle part of the dust and foreign matter removal path where dust is taken out, merges with the dust, and descends.
At this time, the suction air from the air suction passage acts on the dust and foreign matter removal passage, and the dust is separated from the foreign matter, sucked into the air suction passage, and then discharged outside the machine, and the foreign matter is taken out from the extraction port.

(F) Examples The present invention will be specifically described below with reference to the drawings.

First, we will discuss the outline of the sieving machine shown in this example diagram.This sieving machine has a removing section A at the front above the wind sorting section B and a pothole type sorting section C at the rear. The paddy which is integrally formed on a table 1 and supplied to a paddy tank 2 is slid down by a pair of dehulling rolls 3 and is air-sorted in a sorting air passage 4. Through this wind sorting, the rice husks are discharged from the suction dust extractor 5 to the outside of the machine, the rice grains are taken out from the rice paddy trough 6, and the mixed rice of brown rice is lifted up from the mixed rice removal trough 7 by the grain lifting machine D1. The grains enter the grain channel a from the upper spout 8 and are supplied to the sorting process in the pot-hole type sorting section C, where they are sorted into brown rice and paddy.

That is, the sorting section C is sent to the rear side by the transfer gutter 11 through the sorting barrel 10, which has a large number of potholes 9 formed on the inner circumferential surface, and falls onto the inner circumferential surface of the sorting barrel 10 from the rear lower opening 12. By the lifting action of the pot hole 9 of the rotating sorting cylinder 10, the brown rice is lifted into the receiving gutter 13 and sent to the front side, and then led out to the rear side of the wind sorting section B through the brown rice gutter 14. Waste rice is removed in the wind selection path 15, passed through a brown rice removal gutter 16, lifted up by a grain lifting machine D2, and stored in a predetermined container.

In addition, the paddy left behind from the brown rice is pumped up by several buckets 17 evenly distributed on the inner circumferential surface of the front end of the sorting barrel 10, is received by the return gutter 18, flows down, and is returned to the paddy tank 2. Those that cannot be lifted up to the receiving gutter 13 by the lifting action of the pot hole 9 fall into the transfer gutter 11 and are sent to the rear side and are sent to the drop port 1.
2 to the inner circumferential surface of the sorting cylinder 10 again.

The outline of this rice hulling machine is as above, but next we will discuss the main parts of this invention.

The grain flow path a has a grain receiving chamber 20 formed at the bottom by stretching a grain flow board 19, and a sieve line 2 having sieve openings that allow grains to pass below the grain receiving chamber 20.
1 is constructed, and the grain receiving chamber 20 has a rear side wall 22 through which the spout 8 can be seen, and a grain flow path a.
The lower part thereof is communicated with the transfer gutter 11.

Reference numeral b denotes a dust and foreign matter removal passage, which is integrated with the grain flow path a back to back, and the upper part of the extraction passage b is connected to the flow grain plate 19 on the upper side of the grain receiving chamber 20.
It communicates through a communication port 23 opened between the two, and the lower part becomes an outlet 24 and communicates with the outside of the machine. Then, the grain flow path a and the middle part of the dust and foreign matter removal path b are made to communicate with each other, and the tip of the sieve wire 21 is extended into the dust and foreign material removal path b through this communication point 25 where the grain flow path a is found. I'm letting it come out.

Further, 26 is an air suction passage, the upper part of which communicates with the part above the outlet 24 of the dust and foreign matter extraction passage b, that is, between the dust and foreign substance extraction passage b extending from the tip of the sieve wire 21 to the extraction opening 24. The lower part communicates with the above-mentioned sorting air passage 4 from the upper part of the air selection part B.

In addition, 27 is a scattering prevention curtain that hangs down from the lower end of the grain flow board 19 onto the sieve line 21.

Therefore, the mixed rice lifted by the grain lifting machine D1 is thrown into the grain receiving chamber 20 from the upper spout 8, and at this time, the mixed rice is shown in arrow A in FIG. The front wall 2 of the grain receiving chamber 20 is
It collides with 8 and spreads out as shown by arrow B and flows down. Then, the dust mixed in this mixed rice is suspended in the grain receiving chamber 20 due to the introduction of the mixed rice,
3 into the dust and foreign matter removal path b. Then, the suction air due to the suction action of the suction dust remover 5 is transferred to the suction path 2.
6 acts in this dust and foreign matter removal path b as shown by the arrow C in FIG. It is sucked into the air sorting section B through the air sorting section B and discharged outside the machine through the sorting air path 4.

Further, if the suction wind acting in the dust/foreign matter removal path b is weak at this time, the dust will come out from the lower outlet 24, so a dust collection bag may be attached to this outlet 24 to receive the dust.

The mixed rice spreading and flowing down as indicated by the arrow B above reaches the sieve line 21, but the foreign matter mixed in this mixed rice cannot pass between the lines of the sieve line 21 and passes through the communication point 25. The particles flow on the sieve wire 21 toward the tip, fall into the dust and foreign matter removal passage b, descend, and are taken out of the machine through the removal port 24 at the bottom.

In addition, when the suction air acts in the dust and foreign matter extraction path b as described above, the dust in the grain flow path a is also sucked out as shown by arrow D, and the mixed rice that has passed through the sieve line 21 is transferred to the grain flow. The rice is supplied from the lower part of path a to the sorting process in pothole type sorting section C, where it is sorted into brown rice and paddy.

(g) Effects of the invention As explained above, the present invention has a grain flow path in which a sieve line with sieve openings through which grains pass is installed below the grain receiving chamber, and a take-out port is opened at the bottom. and a dust foreign matter removal passage whose upper part communicates with the upper side of the grain receiving chamber, and a spout of a grain lifting machine for lifting the mixed rice after the dehulling wind selection is connected to the grain receiving chamber. At the same time, the grain flow path and a midway part of the dust and foreign matter removal path are communicated, and the tip of the sieve wire is extended into the dust and foreign material removal path through the communication point, and the Since the dust and foreign matter removal passage leading to the outlet is configured to communicate with the air suction passage, the dust and foreign matter mixed in the mixed rice that is lifted up by the grain frying machine after dehulling and air sorting are separated into one. The dust can be removed together by a component, and the configuration is simplified without having to separately provide a device for removing dust and a device for removing foreign matter, and
By simplifying its configuration, it can be installed in a limited space, making the aircraft more compact. Furthermore, since the foreign matter in the mixed rice is removed before sorting the mixed rice after depudding into brown rice and paddy, it does not adversely affect the sorting process in the sorting section and contributes to improving its performance.

[Brief explanation of the drawing]

The drawings are for illustrating the embodiment of the present invention, and FIG. 1 is a front view showing only the essential parts in longitudinal section, FIG. 2 is a front view of the same external appearance, and FIG. FIG. 4 is a side view showing the inside of the entire rice huller. 20... Grain receiving chamber, 21... Sieve wire, 24... Outlet, a... Grain flow path, b... Dust foreign matter removal path,
D1... Grain lifting machine, 8... Throwing port, 25... Communication point, 26... Air intake path.

Claims (1)

[Scope of utility model registration request] There is a grain channel a in which a sieve line 21 having sieve meshes through which the grains pass is installed below the grain receiving chamber 20, and a take-out port 24 is opened at the lower part, and the upper part of the grain receiving chamber 20 is connected to the upper part of the grain receiving chamber 20. A spout 8 of a grain lifting machine D1 is provided with a dust foreign matter removal path b communicating with the crocodile, and lifts mixed rice after defecation air sorting.
the grain receiving chamber 20, and communicates the grain flow path a with the middle part of the dust and foreign material removal path b, and connects the tip of the sieve wire 21 to the dust and foreign material removal path b through the communication point 25. a dust and foreign matter outlet b extending into the dust and foreign matter outlet b extending from the tip of the sieve wire 21 to the outlet 24, and extending from the tip of the sieve wire 21 to the outlet 24; A device for removing dust and foreign matter in a rice huller, characterized in that a space between the spaces is connected to an air suction passage 26.