KR100323650B1 - Grain sorting machine - Google Patents

Abstract

Objectives: The present invention provides a shipbuilding machine that can expect perfect selection while improving rice selection efficiency with a simple structure.

Configuration: The present invention partitions the interior of the shipbuilding room with a hopper on the upper side by a wall formed into a negative pressure chamber and an input chamber, the communication between the negative pressure chamber and the input chamber through the exhaust opening opened above the wall and the shipbuilding A plurality of inclined plates are attached to the upper and lower sides of the hopper immediately below the inside of the chamber, and the inclined plates are formed between the inclined plates so that the rice falling into the inclined plates is brought into contact with the air flow sucked from the outside.

Effect: When the rice falling through the inlet collides with the inclined plate and is scattered to the surroundings, foreign matters such as black fire, dust, dust, etc. existing between the rice are separated and removed while the airflow is sucked to the lower side of the inclined plate.

Description

Shipbuilding machine {Grain sorting machine}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shipbuilding machine that sorts, removes, and selects foreign matters mixed from rice harvested from paddy fields. In particular, the present invention relates to a shipbuilding machine having a structure capable of significantly improving the selection efficiency.

Grains, especially those produced by threshing machines or combines (rice paddies that are threshed in paddy fields and containing a large amount of water) are straws, scabs, water cuttings (stalks attached to the ear), ground diameter (branches and stems), and soil. Because foreign matters such as sand, small stones, etc. are mixed in a large amount, it is impossible to apply them in the rice processing plant as it is.

Shipbuilding machines for selecting rice have been conventionally used in a variety of structures, but usually as shown in Figure 5 through the hopper 2 to fall into the shipbuilding room 4, the rotating mesh (6) installed therein Falling to the outer circumferential surface of)), large stones, sand, gum light, etc. larger than rice are removed first, and the rice, small stones, sand, dust, etc. that have passed through the rotating mesh 6 are driven by the motor 8. Weed seeds, flickering, gravel, black fire having a size slightly larger than rice while passing through the reticulated sieve 12 vibrated under the influence of the weight 10, and the rice passed through it, and the size smaller than the rice The dust, sand and the like are again filtered out of the other reticulated sorter 14, and the foreign matters of the remaining small particles are arranged to be selected.

In the shipbuilding machine of the above-described configuration, the outlet side of the shipbuilding room 4 and the final reticulated sorting body 12 are evacuated so that negative pressure is applied, and dust, dust, black fire, sand, and the like are collected and collected at a predetermined place. .

Conventional shipbuilding machine of the above-described configuration has the disadvantage that the selection efficiency is low because the rice must pass through the rotating mesh for a long time. In particular, since the rotating mesh easily sticks to the outer surface and blocks the hole, it cannot be smoothly selected without using a device that scrapes the surface of the rotating mesh such as a scrubber to remove the black flame. The manufacturing cost is also quite expensive.

The applicant of the Korean Utility Model Registration Application No. 98-5441 for a shipbuilding machine having a structure which can adjust the vibration of the reticulated sorter in accordance with the weight of rice (for example, heavier rice is heavier than dried rice) in the conventional shipbuilding machine structure. It was proposed in a call.

However, this type of shipbuilding machine also employs a rotating mesh and thus has a problem in that it is impossible to perform fast and efficient selection.

Accordingly, an object of the present invention is to provide a shipbuilding machine having a configuration capable of selecting a ship quickly and efficiently by fundamentally solving the problem of declining rice picking efficiency caused by the rotating mesh installed inside the shipbuilding room in the conventional shipbuilding machine. have.

The present invention for realizing the above object is divided into a negative pressure chamber and an input chamber by partitioning the interior of the shipbuilding room installed with a hopper on the upper side, and the negative pressure chamber and the input chamber is to be communicated through the exhaust opening opened upward of the wall and In addition, a plurality of inclined plates are arranged up and down directly inside the shipbuilding chamber to the lower side of the hopper, and the inclined plates are formed between the inclined plates so that rice falling into the inclined plates is brought into contact with the air flow sucked from the outside.

In addition, the present invention may be configured such that rice is evenly supplied over the entire inclined plate by further providing an equal distribution means having a pair of fins extending along the middle of the shaft and spirally extending away from each other.

The present invention may also be implemented in a configuration in which a rocking door having a weight added to the lower end is installed at an intake port between the inclined plates so that the internal wind pressure of the negative pressure chamber is automatically maintained at a predetermined level.

1 is a perspective view showing the main part of the shipbuilding machine to which the present invention is applied.

Figure 2 is a schematic diagram for explaining the even distribution process of rice in the present invention.

Figure 3 is a side cross-sectional view of a shipbuilding machine showing the selection process according to the present invention.

Figure 4 is a side cross-sectional view corresponding to Figure 2 another embodiment of the present invention.

Figure 5 is a schematic side cross-sectional view showing a conventional general shipbuilding structure.

Explanation of symbols on the main parts of the drawings

20: shipyard 26: wall

28: negative pressure chamber 30: input chamber

32a to 32n: inclined plate 34: intake vent

36: equal distribution means

Hereinafter, the present invention having the above-described configuration will be described in detail with reference to preferred embodiments of the accompanying drawings.

1 is a perspective view showing the main portion of the shipbuilding machine to which the present invention is applied, the shipbuilding room indicated by the reference numeral 20 is equipped with a hopper 22 on the upper side, and the duct is connected to a separate blowing means such as 휀 (side) 24).

The shipbuilding chamber 20 has a negative pressure chamber 28, which is substantially isolated from the outside and is communicated to the duct 24 by being partitioned by a wall 26, and an input chamber immediately below the hopper 22. While divided into 30, these two chambers 28 and 30 communicate with each other through an exhaust port 32 opened upward of the wall 26. As shown in FIG.

On the outer wall of the input chamber 30, a plurality of inclined plates 32a to 32n which are arranged up and down with a predetermined inclination angle are provided, and the openings are respectively opened by the inlet port 34 between them.

In addition, in the shipbuilding machine of the above configuration, an equal distribution means 36 may be further added directly under the hopper 22.

The shipbuilding chamber 20 is arranged on the base 38 as in the conventional shipbuilding machine, and inside the base 38, the reticulated sorting body 44 vibrated by the motor 42 is inclined.

Since the internal structure of the base 38 mentioned above is the same as the conventional shipbuilding machine, the detailed description thereof is abbreviate | omitted.

Rice supplied through the hopper 2 is scattered to the periphery while falling to the upper surface of the inclined plate (32a to 32n) as shown in FIG. At this time, when the equal distribution means 36 is provided below the hopper 22, rice is sprayed evenly over the whole surface of the inclination plate 32a.

That is, as shown in Fig. 2, the equal distribution means 36 has a configuration in which the left screw 36 36b and the right screw 36 36c are attached to the outer circumference of the middle portion of the central axis 36a. As the central shaft 36a is driven to rotate, the rice falling thereon is scattered from side to side under the propulsion action of the left screw 36 36b and the right screw 36 36c.

Thus, when the rice falling through the hopper 22 falls on the inclined plate 32a, it is bounced around and scattered, and in this process, the suction port is influenced by the suction force transmitted through the exhaust port 32 communicating with the negative pressure chamber 28. Since the outside air is sucked in through the 34 to form an air flow, the black fire, dust, dust, etc. existing between the rice to be scattered rise as shown by the arrow direction in the drawing, and the exhaust port 32 As it is sucked out, it is removed from the rice. On the other hand, in the present invention, since the plurality of inclined plates 32a are vertically arranged, the action of removing the black light, dust, dust, etc. with the airflow generated through the above-mentioned rice scattering and the inlet 34 is repeated several times. Because of the repetition, it is possible to completely remove the light weight and dust with a light weight that can be attracted to the negative pressure.

In addition, small stones, sand, and the like having a heavy weight so as not to be attracted to negative pressure are separated and removed from the rice while passing through the reticulated sorting body 44 as in the conventional shipbuilding machine.

The shipbuilding machine of the present invention is not an example of the above-described embodiment, it may be implemented in the configuration as shown in FIG.

4 illustrates a configuration in which the rocking door 340 is attached to the inlet 34 so that the opening degree is automatically adjusted in response to the change in the negative pressure.

The illustrated rock door 340 has a structure in which the upper end is connected to the hinge and the pendulum movement, and a lower weight is added to the lower end so that the rock door 340 is placed vertically when no external force is applied. .

Also in this configuration, as in the above-described embodiment, when the negative pressure of the negative pressure chamber 28 is transmitted to the input chamber 30, the shaking door 340 is opened by the action of the external atmospheric pressure, so that air flows to the bottom of the inclined plates 34a to 34n. When the negative pressure of the negative pressure chamber 28 is lowered to a certain level or lower, the rocking door 340 closes the inlet 34, and when the negative pressure increases, the inlet 34 is further opened. The negative pressure delivered to the input chamber 30 is maintained at a constant level.

Of course, even if the negative pressure in the negative pressure chamber 28 is lowered, since the rocking doors 340 of all the intake ports 34 are not actually closed, the foreign material removal action in the input chamber 30 is not influenced by the rocking door 340. Persisted in the open inlet 34, the negative pressure delivered to the interior of the input chamber 30 does not change, and the foreign matter separated and removed is sucked into the negative pressure chamber 28 and discharged.

In this embodiment, if the weight of the weight 342 attached to the bottom of the rocking door 340 is set differently for each inlet 34, the rocking door 340 may be more smoothly operated according to the change in the negative pressure. .

As described above, in the present invention, the rice falling into the inlet impinges on the inclined plate and scatters to the surroundings, and at the same time, air flow is formed in the lower side of the inclined plate, thereby separating the black fire, dust, dust, sand, etc. existing between the rice. Unlike the rotating mesh installed in the shipbuilding machine, it is eliminated, so there is no fear that the hole will be blocked, and since the removal of foreign matter is performed in multiple stages, the selection is perfect, and the manufacturing cost is not required because it does not have special equipment. Inexpensive effect can be obtained.

Claims (3)

The interior of the shipbuilding chamber 20 in which the hopper 22 is installed on the upper side is divided into a wall 26 to form a negative pressure chamber 28 and an input chamber 30, and the negative pressure chamber 28 and the input chamber ( 30 are in communication with each other through an exhaust port 32 opened upwardly of the wall 26, and a plurality of inclined plates 32a to 32n are disposed directly below the hopper 22 in the shipbuilding chamber 20. Attached and arranged up and down, and formed between the inclined plates (32a to 32n) by the inlet port 34, the rice collided and scattered on the inclined plates (32a to 32n) in contact with the air flow sucked from the outside through the inlet port (34) Shipbuilding machine which was made to be selected by becoming. 2. The apparatus according to claim 1, further comprising an equal distribution means (36) formed with a left-hand screw (36b) and a right-hand screw (36c) extending on the lower side of the hopper (22) with the middle of the central axis (36a) as a boundary. Shipbuilding equipment characterized by the configuration. The suction door 34 of the inlet chamber 30 is further provided with a rocking door 340 having a weight 342 attached to a lower end thereof so that the negative pressure of the negative pressure chamber is automatically maintained at a predetermined level. Shipbuilding equipment characterized by the configuration.