JPH0117751B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the improvement of a grain sorting machine, and more specifically, the present invention relates to the improvement of a grain sorting machine. In order to effectively improve the performance of sorting out damaged grains and mechanically damaged grains,
This invention relates to an improved technology for a porous wall sorting plate that connects a swinging device and a blower device.

[Prior art and its problems]

In general, grains, especially beans, have a spherical or elliptical shape, so if they are placed on a flat plate even at a slight incline, they are unstable and can easily roll, resulting in damage from insects. Even if damaged grains have suffered from disease, fertility failure, or mechanical damage, there is a small difference in properties or specific gravity from intact grains, and the porous wall sorting plate uses both blast and shaking sorting effects to sort them out. Accuracy was uncertain, and there was a need for improvement in the sorting machine.

The porous wall sorting plate of the conventional grain sorting machine has protruding blow holes 4 that blow air in an obliquely upward direction, as shown in Fig. 4.
1 are arranged in parallel in multiple rows at appropriate intervals, and the porous wall sorting plate 40 has odd-numbered rows of blowholes and even-numbered rows of blowholes arranged in a staggered manner. Since a plurality of intact grains and damaged grains are mixed and interposed in a column on the band-shaped plate surface 42 in front of the hole 41, the blast action of the blowhole 41 reliably floats the damaged grains with a small difference in specific gravity. It had a drawback in that it could

[Purpose of the invention]

The present invention is intended to solve the above-mentioned various problems, and supplies raw legumes to the higher inclined side of a porous wall sorting plate that connects a swinging device and a blower, and supplies whole grains to the lower inclined side of the sorting plate. While sorting and separating mixed grains and damaged grains and discharging each grain, the shaking and jet air are used to effectively effect the sorting of pulses.
A sorting system with numerous small holes and wavy mountain veins that facilitate the separation of intact grains and damaged grains in opposite directions without interfering with the flow of pulses in the flow direction of the beans. The technical problem is to provide a grain sorter formed into a plate.

[Means for solving problems]

A porous wall sorting plate with the supply side high and the discharge side sloped low is tilted to the machine frame with the swinging side high and the swinging side low so that it can swing forward and backward, and a swinging mechanism is installed below the machine frame. A grain sorting machine is provided with a blower device, and the blower device is connected to a blower chamber formed at the bottom of the sorting plate, wherein the porous wall sorting plate has numerous small holes formed over the entire plate surface. In addition, the problem was solved by a configuration in which a plurality of continuous wavy mountain veins were arranged in parallel from the supply side to the discharge side.

[Effect]

When the rocking device and the blower are started and the raw beans are fed to the porous wall sorting plate, the raw beans flow from the higher slope side of the sorting plate to the outlet on the lower side of the slope while being subjected to the rocking and blowing effects. In the process, perfect grains with high specific gravity are drifted and separated toward the front high side in the swinging direction, and damaged grains with low specific gravity are drifted and separated toward the opposite side of the rear low side in the swinging direction.
Complete grains, mixed grains, and damaged grains are discharged from the end of the inclined lower side plate of the sorting plate.

During the above sorting action, the porous wall sorting board, which is subjected to rocking and blowing action, has numerous small holes over the entire board surface, so that it does not impede the flow of beans in the direction of flow. Perfect grains with a large specific gravity are effectively separated in the forward direction of the swinging direction, and damaged grains with a small specific gravity are effectively separated in the direction toward the rear and low side of the swinging direction.

〔Example〕

The present invention will be explained with reference to FIGS. 1 to 3 of the embodiment diagrams.

A porous wall sorting plate 3 is formed into an integral machine frame D by a plurality of side walls 34, 35, and 36 that stand up and surround the side end of the bottom wall 1A, and is horizontally suspended in the middle part of the machine frame D.
A supply hopper 2 is provided above the high slope side of the sorting plate 3, and a complete grain discharge port 3 is provided at the end C of the low slope side plate of the sorting plate 3.
7. A mixed grain discharge port 38 and a damaged tributary discharge port 39 are provided respectively, and the swing direction of the complete grain discharge side 37 of the sorting plate 3 is set to the front high side, and the swing direction of the damaged grain discharge port 39 is set to the rear low side. form each. Machine frame D
A space between the bottom wall 1A and the sorting plate 3 is formed into a ventilation chamber 5, a sealing cover 1B is attached to the upper end of the machine frame D, and a space between the sorting plate 3 and the sealing cover 1B is used to exhaust air. Form in chamber 4. Upper fulcrums 6..., 7... provided on the bottom wall 1A of the machine frame D and lower fulcrums 9 provided on the support 8.
..., 10... are supported by elastic support rods 11..., 12..., respectively, and the force application point 13 of the machine frame D and the swinging device 1
The four cranks 15 are connected by a rod 16.
A ventilation tube 9 containing fixed blades 18 of a blower device 17 is fixedly installed at the bottom of the ventilation chamber 5, and a rotary shaft 21 of a rotor blade 20 fitted inside the ventilation tube 19 is connected to a fixed frame 22 of a swinging device 14. The rotor blade 20 is rotatably formed by being pivotally attached to the rotor blade 20.

The flowing grain portion of the supply hopper 2 attached to one side of the machine frame D is enlarged to form a wind selection chamber 24.
A sorting air passage 25 is formed in the center of the interior in a horizontally elongated shape, a grain flow board 26 is provided in the grain flow section, a foreign material discharge port 27 is opened in the front side wall of the grain flow board 26, and a wind sorting chamber 24 is formed. At a position below the grain flow plate 26 at the bottom, a grain size flow lower plate 29 having a grain size flow outlet 28 which also serves as an air supply port is provided at the end of the grain flow plate 29 in an inclined manner, and a regulation plate 30 is installed at the upper end of the slope. Adjustable angle adjustment plate 3
An immature grain discharge port 31 is provided in front of the wind selection chamber 24.
The particle size adjustment outlet 28 is in communication with the air exhaust chamber 4 in the machine frame D whose air exhaust area is expanded toward the particle size adjustment outlet 28 side.

Next, details of the porous wall sorting plate 3 will be explained.
Numerous small through-holes 32 are bored throughout the entire plate surface of the sorting plate 3, and a plurality of continuous wavy chevron-shaped veins are formed in the flow direction B on the high slope side and the low slope side of the screen plate 3. Arrange them in parallel. Note that code 2
3 is an elevator for frying raw material beans into the supply hopper 2.

The operation of the above configuration will be explained below.

When the rocking device 14, the blower device 17, and the elevator 23 are started and raw beans are supplied to the supply hopper 2 via the elevator 23, the wind generated by the blower 17 is transferred from the ventilation chamber 5 to the through hole 32 of the sorting plate 3. ..., and the discharged air is sent from one side of the ventilation chamber 4 whose exhaust direction is regulated to the particle size distribution outlet 28 and the wind selection chamber 2.
Air is sent to the sorting air passage 25 of No. 4 to air-select the beans flowing down from the supply hopper 1, discharge light foreign matter to the outside of the machine from the foreign matter discharge port 27, and make immature grains with low specific gravity float far away. The grains are conveyed and discharged from the immature grain outlet 31 to the outside of the machine, and the sorted grains with a large specific gravity (lightweight immature grains, beans from which impurities have been removed) are supplied to the inclined higher side of the sorting plate 3 in the machine frame D. . The sorted grains supplied to the sorting plate 3 form a flat legume layer while flowing on the slanted wavy mountain veins 33, and then pass through the sorting plate 3.
Damaged grains with low specific gravity (insect damage, disease damage, half-split grains, etc.) float to the upper surface of the bean layer due to the blowing action from the through holes 32..., and whole grains with high specific gravity float to the wavy mountain veins of the bean layer. The wavy mountain-shaped vein 3 sinks to the bottom of the ridge 33
Due to the rocking motion in the rocking direction of 3, the complete grains were swung up to the front and higher side in the rocking direction and drifted toward the discharge port, forming a complete grain flux P, and also floated to the top surface of the legume layer. The damaged grains slide on the upper surface of the complete grain layer toward the rear and lower side in the rocking direction, drifting towards the discharge port, forming a damaged grain flux R, and between each flux P and R, the damaged grains and the damaged grains are separated. A mixed grain flux Q of grains is formed and each flows to the inclined lower side plate end C of the sorting plate 3, and the sorted grains of each flux P, Q, and R are respectively sent to the complete grain outlet 3.
7. The mixed grains are discharged to the mixed grain discharge port 38 and the damaged grain discharge port 39 to be discharged outside the machine.

To explain in more detail the sorting action of the porous wall sorting plate 3, the sorting plate 3 is provided with countless small through holes 32, and has wavy chevron veins 33 arranged in parallel in the flow direction of the beans. vein 33
Since each vein interval is formed in the large legume pitch W, the complete grains with high specific gravity that sink to the bottom of the legume layer due to the blast action of the through holes 32 (see Fig. 3) are Wavy chevron veins 33...fit into grooves formed at intervals to form through-holes 32 at the top of each chevron vein 33
The holes in ... become open, and damaged grains with low specific gravity are easily floated by turning over between whole grains or other grains due to the blowing action, so the damaged grains floating to the upper layer of the legume layer have wavy mountain veins 33 ... The wind blowing from the top through-hole 32 ... easily and actively rolls and slides backward and lower in the swinging direction, forming a damage particle flux R, and wavy mountain veins. The perfect grains that have fitted into the concave grooves 33... are reliably shaken forward and higher in the swinging direction by the swinging action of the wavy mountain veins 33... of the sorting plate 3, forming a perfect grain flux P. In addition, since the sorting plate 3 has wavy chevron-shaped veins 33, it does not hinder the flow of each flux P, Q, R in the flow direction B on the discharge port side, and therefore the sorting performance is reliably improved. , which has the effect of greatly increasing the sorting efficiency.

Note that the wavy chevron-shaped veins are not limited to being orthogonal to the front-rear direction of the swinging direction of the sorting plate, but may be slightly inclined to supplement the discharge action. Further, the inclination angle of the sorting plate in the discharge direction is arbitrary.

〔Effect of the invention〕

As explained above, according to the present invention, a porous wall sorting plate connected to a swinging device and a blower device is provided with numerous small holes over the entire plate surface, and the sorting plate for supplying pulses is arranged at a high inclined position. Since it is formed into multiple wavy mountain veins in parallel from the side to the lower side,
This activates the reversal of the sinking of complete grains and the levitation of damaged grains from the legume layer flowing on the surface of the sorting plate, and the wavy mountain veins that are continuously formed from the supply side to the discharge side cause the grains to flow on the shaking side of the sorting plate. Perfect grains do not slide and mix with incomplete grains, and the flow of beans in the flow direction of the beans is not obstructed, so complete sorting can be achieved.

[Brief explanation of drawings]

The drawings are illustrations of embodiments of the present invention. Fig. 1 is a partially cutaway side view of this device, Fig. 2 is a plan view of its sorting frame, and Fig. 3 is a partially enlarged sectional view of the porous wall sorting plate.
FIG. 4 is a partially enlarged perspective view of a known porous wall sorting plate. 1A...Bottom wall, 1B...Hermetic cover, 2...Supply hopper, 3...Porous wall sorting plate, 4...Exhaust chamber, 5...Blower chamber, 6...Upper fulcrum, 7...Upper fulcrum, 8...Abutment,
9... Lower fulcrum, 10... Lower fulcrum, 11... Elastic support rod, 12... Elastic support rod, 13... Force application point, 14... Rocking device, 15... Crank, 16... Rod, 17... Air blower, 18... Fixed wing , 19... Ventilation pipe, 20... Moving blade, 21... Rotating shaft, 22... Fixed frame, 23... Elevator, 24... Wind sorting room, 25... Sorting air path, 26... Grain flow board, 27... Foreign matter discharge port, 28...Sizing discharge port, 2
9... Grain regulating flow plate, 30... Regulating plate, 31... Immature grain outlet, 32... Through hole, 33... Chevron vein, 34... Side wall, 35... Side wall, 36... Side wall, 37... Complete grain outlet, 38 ...Mixed grain outlet, 39...Damaged grain outlet,
40... Porous wall sorting plate, 41... Blast hole, 42... Strip plate surface, B... Flow direction, C... Plate end, D... Machine frame, W
...A pea-sized pitcher of sorted grains.

Claims (1)

[Claims] 1 A porous wall sorting plate with the supply side high and the discharge side sloped low is tilted to the machine frame with the swinging side high and the swinging side low so that it can swing forward and backward, and the swinging mechanism is installed below the machine frame. and a blower device, and the blower device is connected to a blower chamber formed at the bottom of the sorting plate, and the porous wall sorting plate has numerous small holes perforated over the entire plate surface. A grain sorting machine characterized in that a plurality of continuous wavy mountain veins are arranged in parallel from the supply side to the discharge side.