JPS643154B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a grain sorter for sorting out damaged grains such as deformed grains of general grains, especially beans.

[Prior art] There is a conventional grain sorting machine as shown in Japanese Patent Publication No. 55-37952, in which a blower is installed below a swingable sorting perforated plate mounted at an angle, and the entire perforated sorting plate is sucked out. It is surrounded by the department. The grains are then sorted by the wind blown from the blower onto the sorting perforated plate and by the shaking motion.

However, in the conventional sorting equipment as described above, only the air blowing action is performed by the blower, so the suction part becomes extremely positive pressure, and dust is violently scattered from the gaps in the suction part, worsening the working environment. If the supply amount is increased, the sorting capacity will drop drastically,
In order to improve the sorting efficiency, it is necessary to install a number of sorting devices, which increases the installation area and increases costs.

[Problem that the invention seeks to solve]

The purpose of this invention is to solve the above-mentioned problems and provide a grain sorting machine that does not scatter dust, has a large sorting capacity, and can improve sorting efficiency without increasing the installation area. shall be.

[Means for solving problems]

In order to achieve this object, the present invention has the following configuration.

The inside of the closed machine frame is formed into a multi-tiered field, and inside each field, a perforated wall board with a wavy surface formed by a large number of mountain veins is installed horizontally, and the upper part of the sorting board is formed into a ventilation chamber. A plurality of stages are provided with the lower part serving as a blowing chamber, and the closed machine frame is formed so as to be able to swing forward and backward in the direction in which the chevron veins intersect with the swinging direction, and is distributed to each of the sorting plates. A supply gutter is provided to separate the mixed grains supplied to the sorting plate upward and downward in the swinging direction, respectively, while flowing in the horizontal direction and discharged to the final stroke of the sorting plate, A ventilation device is connected to the ventilation opening provided in the wall of the ventilation chamber, and a ventilation device is connected to the ventilation opening provided in the wall of the ventilation chamber.

[Effect]

When the sorting device is activated, the porous wall sorting plate inside the closed machine frame is raised forward and swung back and forth, and air is blown from the ventilation chamber at the bottom of the sorting plate to the ventilation chamber at the top. The grains (bean grains) supplied from the supply gutter to each sorting plate form a grain layer as they roll down the sloping wavy surface, and the specific gravity is reduced by the blast action from the porous wall of the sorting plate. Incomplete grains (half-split grains, damaged grains) with a small value float to the top of the grain layer, and complete grains with a large specific gravity gather at the bottom of the grain layer. The vibrating action of the chevron veins separates the grains into complete grains, incomplete grains, and mixed grains, which are then discharged from the end of the sorting plate.

〔Example〕

Embodiments of the invention will be described with reference to the drawings. FIG. 1 is a plan view of a porous wall sorting plate of the present invention, and FIG. 2 is a partial side sectional view of a grain sorting machine.

Reference numeral 1 is a porous wall sorting plate formed on a wavy surface by a large number of chevron-shaped veins, and reference numeral 3 is a supply gutter.
A complete grain outlet 4, a mixed grain outlet 5, and a damaged grain outlet 6 are provided at the end of the sorting plate 1.

As shown in FIG. 2, the inside of the closed machine frame 7 is formed into multi-tiered fields 8 and 9, and each of the fields 8 and 9 is equipped with a porous wall sorting plate 1. A supply gutter 3 is connected to supply each of the sorting plates 1. The swinging mechanism that swings the closed machine frame 7 back and forth is
Upper fulcrum points 10, 11 and lower fulcrum 1 of support frame 12
3 and 14 are supported by support rods 15 and 16, and a force application point 17 of the machine frame 7 and a crank 18 attached to the support frame 12 are connected by a rod 19.

In addition, the upper part of the porous wall sorting plate 1 suspended horizontally in the harvesting rooms 8 and 9 is formed into an air exhaust chamber 20, an air outlet 22 is provided in the swinging side machine frame 21 in front of it, and the lower part of the sorting plate 1 is formed into an air blowing chamber 20. A ventilation port 25 is provided in the side wall 24 of the machine frame on the swinging side behind it. The blowing device 26 and the blowing device 27 are connected to the blowing port 25 and the blowing port 22, respectively, by wind pipes 29 and 30 having a flexible portion 28 made of an elastic membrane.

Next, the operation of the above configuration will be explained. When the sorting device is started, the porous wall sorting plate 1 inside the closed machine frame 7 is raised forward and swung back and forth. Air blower 26
The generated wind is sent from the ventilation chamber 23 through the wind pipe 29, the flexible part 28, and the ventilation opening 25 to the ventilation chamber 20 as a jet from the porous wall of the sorting plate 1. The beans inputted from the feeding device 3 and supplied to each of the sorting plates 1 roll on the sloping wavy surface and flow down, forming a flat grain layer.

Due to the blast action from the porous wall, incomplete grains (half grains, damaged grains) with low specific gravity are floated to the top of the grain layer, and complete grains with high specific gravity are collected at the bottom of the grain flow layer. Due to the rocking action of the chevron veins, the complete grains on the bottom surface of the grain layer are pushed up toward the front and higher side, and drift laterally to form a complete grain bundle P. The incomplete grains floating on the upper surface of the grain layer slide laterally on the upper surface of the complete grains and drift laterally to form a damaged grain flux R. A mixed grain flux Q of perfect grains and damaged grains is formed between the fluxes P and R, and each flux P, Q, R
The sorted particles flow to the final stroke of the sorting plate 1, flow down to the complete particle outlet 4, the mixed particle outlet 5, and the damaged particle outlet 6, and are discharged to the outside of the machine. Dust generated during the sorting work is removed from the ventilation chamber 20 through the ventilation opening 22,
Air exhaust device 2 via flexible part 28 and wind pipe 30
7, it is ejected from the machine. At this time, due to the air blowing action of the air blower 26 and the air exhausting action of the air exhaust device 27, negative pressure is created in the air blowing chamber 23 and the air exhaust chamber 20, so that dust does not blow out from the machine frame or the flexible portion 28.

As shown in Fig. 2, the cross-sectional area of the fields 8, 9 is divided by the sorting plate 1 suspended horizontally between the fields 8, 9, such that the ventilation chamber 23 is large and the ventilation chamber 20 is small on the ventilation port 25 side. On the wind port 22 side, the ventilation chamber 20 is large and the ventilation chamber 23 is small.
They are equally formed in the middle. Therefore, a blowing action can be performed with uniform wind pressure over the entire surface of the sorting plate 1, and a highly accurate sorting action can be performed.

Further, since the blower device 26 and the blower device 27 are connected to the blower port 25 of the blower chamber 23 and the blower outlet 22 of the blower chamber 20 by the wind pipes 29 and 30 having the flexible portion 28, the wind pipe 29 , 30 are vibration-proofed, and the safety of the air blower 26 and the air exhaust device 27 can also be ensured.

There is a method shown in FIG. 3 as a method for ensuring the safety of the air blower 26 and the air exhaust device 27. The blower device 26 and the exhaust device 27 are connected to wind pipes 32 and 33 having an overlapping cylinder portion 31 consisting of an inner cylinder and an outer cylinder.
This connects the ventilation port 25 of the ventilation chamber 23 and the ventilation port 22 of the ventilation chamber 20. The cross section of the overlapping tube portion 31 can be formed into any arbitrary shape such as a square or a circle, and a gap may be provided between the overlapping tubes. Due to the above configuration, the closed machine frame 7
Safety can be ensured by preventing the vibrations from being transmitted to the air blower 26 and the air exhaust device 27.

Moreover, even in the embodiment shown in FIG.
Due to the ventilation action of 6 and the ventilation action of the ventilation device 27, the inside of the ventilation chamber 23 and the ventilation chamber 20 become negative pressure,
Dust does not blow out from the overlapping cylinder part 31.

〔Effect of the invention〕

According to the grain sorting machine of the present invention, the inside of the closed machine frame is formed into a multi-tiered field, and a perforated wall sorting plate is horizontally hung in each field, so that the upper part of the sorting plate is placed in the ventilation chamber and the lower part is placed in the ventilation chamber. are formed in each ventilation chamber, and the ventilation device is connected to the ventilation chamber, and the ventilation device is connected to the ventilation chamber, so that the sorting work can be performed within the closed machine frame, and the work can be done without scattering dust. Can keep the environment clean. In addition, since the field with the perforated wall sorting board placed horizontally is formed in a multi-tiered manner inside the closed machine frame, the sorting throughput can be greatly increased without installing additional sorting machines, and the installation space can be reduced. Cost reduction becomes possible.

Further, due to the blowing action of the blower and the exhausting action of the air exhaust device, the air blowing chamber and the ventilation chamber become negative pressure, and dust can be completely discharged to the machine frame without being ejected from the machine frame or the like.

[Brief explanation of drawings]

FIG. 1 is a plan view of the porous wall sorting plate of the present invention, and FIG.
The figure is a partial side sectional view of the grain sorter, and FIG. 3 is a sectional view of the closed machine frame. 1... Porous wall sorting plate, 2... Chevron vein, 3...
Supply gutter, 4... Complete grain outlet, 5... Mixed grain outlet, 6... Damaged grain outlet, 7... Sealed machine frame, 8
... Farm, 9 ... Farm, 10 ... Upper fulcrum, 11
... Upper fulcrum, 12... Support frame, 13... Lower fulcrum, 14... Lower fulcrum, 15... Support rod, 16...
Support rod, 17... Force point, 18... Crank, 19
... Rod, 20 ... Exhaust chamber, 21 ... Side wall, 2
2...Exhaust port, 23...Blower chamber, 24...Side wall,
25... Air outlet, 26... Air blower, 27... Air exhaust device, 28... Flexible part, 29... Wind pipe, 30... Wind pipe, 31... Polymer cylinder part, 32...
Wind pipe, 33...Wind pipe, P...Complete particle flux, Q...
Mixed grain flux, R...damaged grain flux.

Claims (1)

[Claims] 1. The inside of the closed machine frame is formed into a multi-tiered field,
In each field, a porous wall sorting plate with a wavy surface formed by a large number of mountain veins is installed horizontally, and the upper part of the sorting plate is a ventilation chamber and the lower part is a ventilation chamber. The closed machine frame is formed to be able to swing forward and backward in the direction in which the veins intersect with the swinging direction, and a supply gutter is provided to distribute and supply to each of the sorting plates, thereby distributing and distributing the mixed grains to the sorting plates. are formed so that they are separated into upper and lower parts in the swinging direction, flow laterally and are discharged to the final stroke of the sorting plate, and an air exhaust device is installed in the air outlet provided in the wall of the air exhaust chamber. A grain sorting machine characterized in that a blower device is connected to a blower port provided in a wall of a blower chamber. 2. The grain sorter according to claim 1, wherein the blowing device or the blowing device is connected to the blowing port of the blowing chamber or the blowing port of the blowing chamber, respectively, by a wind pipe having a flexible portion made of an elastic membrane. 3. The grain sorter according to claim 1, wherein the blowing device or the blowing device is connected to the blowing port of the blowing chamber or the blowing port of the blowing chamber, respectively, by means of a wind pipe having an overlapping cylinder portion.