JPS6216219Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to improvements in a bean wind sorting device for wind-selecting legumes such as soybeans and adzuki beans.

For separating and wind-sorting the bean grains that have been threshed from the grain culm using a pulse threshing machine (or bean threshing machine) from the crushed waste of the bean husks (pods) and the crushed waste of the waste culm that were mixed in during the threshing process. In the wind sorting device, when the beans to be sorted collide with a hard object, the beans bounce off and bounce, so the beans supplied to the sorting air path fall towards the floor of the sorting air path. When the vehicle collided with the vehicle, it flew up from the floor of the sorting air channel,
The dust is carried by the sorting wind sent from the Karachi blower to the sorting air passage, and is blown out to the dust outlet at the end of the sorting air passage, so that many fine particles are mixed into the air-separated waste. There is a problem.

To solve this problem, it is possible to install cushioning material such as rubber or sponge on the floor of the sorting air passage to soften the shock when particles fall and collide with the floor. The problem arises that the slippage of the floor surface of the sorting air passage becomes poor, the blowing effect of crushed debris is reduced, and a large amount of crushed debris becomes mixed into the sorted fine grains.

The purpose of this invention is to solve these problems and effectively prevent dust from getting mixed in with the fine grains being taken out, while also preventing dust from getting mixed in with the dust discharged by the bounce of the grains. The objective is to provide a new means for reducing grain size.

In order to achieve this object, the wind sorting device for beans according to the present invention is arranged so that at least the beans to be sorted that are supplied to the sorting air passage fall on the upper surface of the floor surface of the sorting air passage through which the sorting air blows. The feature is that a very fine wire mesh made of thin metal wire is laid over the upper surface of the floorboard at the collision site.

Next, an example of implementation will be described with reference to the drawings.

In FIGS. 1 and 2, numeral 1 denotes a machine frame of a threshing machine A, which is formed into a box shape.

Reference numeral 2 denotes a grain removal chamber installed in the upper part of the inner cavity of the machine frame 1, which is formed in a cylindrical shape with its axis extending in the front-rear direction of the machine frame 1 (the left-right direction in Figure 1), and the lower half circumferential side of the peripheral wall is It is formed of a coarse sieve screen 20 (or grid) through which the bean grains and crushed bean shells pass through. The threshing chamber 2 is provided with a supply port 21 on a side surface perpendicular to the axial direction on the front end side (right side in FIG. 1), and a feed conveyor 22 is provided on the floor surface of the supply port 21. A supply gutter 23 is connected thereto. Further, an exhaust port 24 for discharging the waste culm is provided on the rear end surface of the grain removal chamber 2, and a resistance plate 25 that closes the discharge culm port 24 in a freely openable and closable manner is installed in the discharge port 24. The chamber 2 is biased toward the closed side by a spring or weight and is hung vertically so that the threshed material in the chamber 2 is opened by the pressure of being pushed out by the spiral grain feeding blades 31 of the threshing drum 3, which will be described later.

Reference numeral 3 denotes a grain threshing cylinder which is horizontally supported in the grain threshing chamber 2 with its axial direction along the longitudinal direction of the machine frame 1, and has a spiral grain feeding blade 31 on the outer peripheral surface of a drum-shaped peripheral wall 30. Wrapping and mounting at a predetermined pitch P, and implanting a large number of handling teeth 32 in a desired shape on the outer surface of the trunk peripheral wall 30 between the pitches of the spiral grain feeding blades 31, and Projecting in the radial direction from the drum peripheral wall 30 at the end on the supply port 21 side and the end on the discharge culm port 24 side in the axial direction of the grain threshing drum 3, The stirring blades 33 along the axial direction of the body peripheral wall 30 have a length corresponding to the interval pitch P of the spiral grain feeding blades 31 described above, and a protrusion that is aligned with the protrusion height in the radial direction of the spiral grain feeding blades 31. formed in height and circumferentially
Spiral grain feeding blades 3 at intervals of 180 degrees or 270 degrees
They are each installed so as to fill one pitch P.

4 is subjected to grain removal processing in the grain removal chamber 2 and passes through the sieve screen 20
This processing chamber separates the bean grains and capsules leaking from the grain into the grains and capsules while reprocessing them.
As shown in FIG. 2, it is formed by shelving a sieve screen 4a in the shape of a receiving gutter, and a spiral blade 42 is wound around the circumferential surface of a rotating shaft 41 in the inner cavity of the sieve screen 4a. At the same time, the spiral blade 4 is attached to the outer edge of the spiral blade 42.
Tooth rod 4 formed to a length corresponding to the spacing pitch of 2.
3... are attached at appropriate intervals in the rotational direction, and a screw conveyor-like processing cylinder 40 is arranged such that the direction of transfer by the spiral blades 42 is the direction of transfer by the spiral grain feeding blades 31 of the threshing cylinder 3 described above. The grain removal cylinder 3 is horizontally supported by a shaft so that the grains are aligned with each other and the axial direction is parallel to the axial direction of the grain removal cylinder 3. The sieve mesh of the sieve screen 4a is set to have a diameter small enough to allow the peas to pass through.

B is a machine frame 1 of the threshing machine A for wind-selecting the threshed beans leaking from the sieve screen 4a.
A wind selection device according to the present invention installed inside the machine includes a selection air path 6 that guides and blows away the selection air sent from the Karachi blower 5 so as to tilt upward toward the front in the blowing direction, and the selection air path 6. It is equipped with a supply hopper 7 disposed above the sorting air passage 6 so as to supply the beans to be sorted from above to the starting end side of the screen, and a supply belt 8 for feeding the beans to be sorted into the supply hopper 7. The air passage 6 is located on the rear half side of the bottom of the inner cavity of the machine frame 1.
It is arranged so that it slopes upward from the front of the machine frame 1 toward the rear.

Further, the supply hopper 7 is disposed below the rear half side of the sieve screen 4a so as to catch and collect the beans leaking from the rear half side of the sieve screen 4a, and is opposed to each other in the upper and lower directions. Slanted plate 7
0.71, with an inclined plate 71 on the front side of it.
The sorting air passage 6 is arranged so that the beans flowing down from the outlet 72 formed at the lower end are inclined upwardly below the supply hopper 7 toward the rear end side of the machine frame 1.
The sorting air passage 6
It is connected to. Further, the supply belt 8 is arranged on the lower surface of the front half side of the sieve screen 4a so as to receive and collect the beans leaking from the front half side of the sieve screen 4a and feed them into the supply hopper 7. It has been set up.

Therefore, the floor plate 60 of the aforementioned sorting air passage 6 has a dust outlet which blows out the waste from the inclined descending end which is the connecting end with the first receiving gutter 9 installed at the starting end side of the sorting air passage 6. The range reaching the slope rising end forming the lower edge of 61 is
As shown in FIG. 4, the No. 1 receiving gutter 9 is supported so as to freely rotate up and down about a support shaft 62 provided at the upper end of the rear wall, and is provided on both left and right edges of the floor plate 60. The bent walls 63 and 63 are attached to the left and right machine walls 1 of the machine frame 1.
The angle of inclination can be freely adjusted to 0.0.10 by means of an arcuate long hole 64 centered on the support shaft 62 and a set screw 65 fitted therein.

As shown in FIGS. 4 and 5, on the upper surface of the rotatable floor plate 60, a wire mesh a is laid overlappingly. It is desirable that the metal wires used to knit the wire mesh a are thin and soft, and therefore it is desirable to select a wire mesh with a very fine mesh having a mesh diameter of about 1 mm. This wire mesh a is the floor plate 6 of the sorting air passage 6.
It suffices to lay it on the top surface of the support shaft 6 in the range where the beans collide with the beans flowing down from the outlet 72 of the supply hopper 7.
The floor plates 60 are laid over the entire upper surface of the floor plate 60, which can freely rotate up and down about two centers.

In addition, in the illustrated example device, 90 is 1
No. 1 screw conveyor, 91 is No. 1 grain lifting machine, 92
is a No. 2 receiving box disposed outside the dust exhaust port 61.

The embodiment device constructed as described above operates as follows.

When the beans are put into the supply hopper 7, they flow down the slope of the inclined plate 71, flow into the sorting air passage 6 from the outlet 72, and fall toward the upper surface of the floor plate 60 of the sorting air passage 6. When the beans are received on the upper surface of the floor plate 60, the floor plate 6
The impact is softened by the soft elasticity of the thin metal wires of the wire mesh a, and the impact is softened by the soft elasticity of the thin metal wires of the wire mesh a. It can be received on the top. For this reason, when the grains falling toward the upper surface of the floor plate 60 collide with the upper surface of the floor plate 60, the bounce is significantly reduced, and the particles float up from the floor plate 60 due to the bounce, and the dust exhaust port 61 is exposed to the sorting wind.
To extremely reduce the amount of fine particles that are blown away from the machine and blown out of the machine together with the dust.

The wire mesh a, which acts to prevent particles from bouncing off due to collisions, is made of thin metal wires, so the frictional resistance on its upper surface is extremely small. In addition to smoothing the fall of the supplied bean grains that have fallen onto the upper surface of the floor plate 60 of the air passage 6, the flow of crushed bean shell debris toward the dust exhaust port 61 side is also smoothed, and the crushed debris and the bean grains are smoothly flowed. Improves wind selection.

As explained above, the pulse sorting device according to the present invention has a thin strip on the upper surface of the floor plate of the sorting air passage through which the sorting air flows, at least in the area where the beans to be sorted supplied to the sorting air passage fall and collide. Since it is constructed by laying an extremely fine mesh wire mesh made of metal wire over the top surface of the floorboard, the slippage of the top surface of the floorboard in the sorting air channel is prevented by the fine mesh wire mesh laid on the top surface of the floorboard. well-retained, and
The impact when the beans collide with the floorboard is softened by the soft elasticity of the thin metal wires that make up the wire mesh, and the beans and crushed debris that fall onto the floorboard of the sorting air path are sorted. This effectively prevents the particles from bouncing back and reduces the amount of particles flying out to the dust outlet side without reducing the accuracy.

[Brief explanation of the drawing]

Fig. 1 is a vertical side view of a soybean threshing machine that can implement the device of the present invention, Fig. 2 is a longitudinal cross-sectional rear view of the same, Fig. 3 is a longitudinal side view of the same wind sorting device, and Fig. 4 is a main part of the same device. FIG. 5 is a vertical sectional side view of the floor plate of the screening air passage of the same device. Explanation of drawing symbols, A...Thresher, B...Air sorting device, P...Pitch, a...Wire mesh, 1...Machine frame, 1
0...Machine wall, 2...Thresholding room, 20...Sieve screen, 21
... Supply port, 22 ... Feeding conveyor, 23 ... Supply gutter, 24 ... Exhaust culm, 25 ... Resistance plate, 3 ...
Threshing cylinder, 30 ... cylinder peripheral wall, 31 ... grain feeding blade, 32
... Handling tooth, 33 ... Stirring blade, 4 ... Processing chamber, 4a
... Sieve screen, 40 ... Processing cylinder, 41 ... Rotating shaft, 4
2... Spiral blade, 43... Tooth rod, 5... Tang winch blower, 6... Sorting air path, 60... Floor board, 61... Dust exhaust port, 62... Support shaft, 63... Bent wall, 64...
Long hole, 65...Set screw, 7...Hopper, 7
0.71... Inclined plate, 72... Outlet, 8... Supply belt, 9... No. 1 receiving gutter, 90... No. 1 screw conveyor, 91... No. 1 grain lifting machine, 92... 2
Number box.

Claims (1)

[Scope of utility model registration request] On the top surface of the floorboard of the sorting air passage through which the sorting wind blows,
A method for producing legumes, characterized in that a wire mesh made of thin metal wire with an extremely fine mesh is laid over the top surface of the floor plate, at least in the area where the beans to be sorted supplied to the sorting air path fall and collide. Selection device.