JPH07102340B2 - Re-sorting device for grain sorter - Google Patents

Description

TECHNICAL FIELD The present invention relates to a re-sorting device for a grain sorter that sorts and removes fine grains such as immature grains and crushed grains while frying grains such as rice grains.

"Prior Art" Conventional grain sorters of this type include, for example, JP-A-60-
There is one disclosed in Japanese Patent No. 248269.

That is, in the publication, a sorting net body is configured by upper and lower sorting cylinders having different mesh sizes, and a plurality of upper and lower independent fine grain receiving chambers are provided corresponding to the upper and lower sorting cylinders.
A grain sorter for dividing fine grains into a plurality of ranks and taking them out separately is disclosed.

"Problems to be solved by the invention" However, in this conventional grain sorter, the fine grains are simply divided into a plurality of ranks and taken out separately, and the grains can be used as the sized grains mixed in the fine grains. In addition to taking out the grains separately, it is not possible to automatically re-sort the grains that are used as sized grains mixed in the fine grains.
There is a problem in that manufacturing is time-consuming and inefficient because one screening net is composed of a plurality of upper and lower screening nets.

The present invention has been made in view of such conventional problems, and it is possible to automatically and systematically re-select grains that can be used as sized grains in fine grains with one sorting mesh. An object of the present invention is to provide a re-sorting device for a grain sorter, which has a simple structure so that it can operate effectively and solves the above-mentioned problems.

"Means for Solving the Problem" The gist of the present invention for achieving such an object is to provide a cylindrical selection net and a fried helix that is fitted inside the selection net. Along with being concentrically provided relative to each other and rotatably provided, an outer shell body that covers the outside of the sorting net body is erected, and the sized grain fried by the fried helix is placed on top of the sorting net body. In a grain sorter in which the fine grains sieved by the sorting mesh are discharged from the formed discharge port and discharged from the fine grain receiving chamber to the outside of the machine, at least a part of the outside of the sorting mesh is surrounded. The clogging prevention plate of the sorting net is arranged above the slanted fine grain receiving gutter, and the lower slant side of the fine grain receiving gutter is the discharge port opening to the upper part in the grain feeding hopper and the fine grained gutter. The discharge ports that communicate with the grain receiving chamber are connected to each Mouth lies in rescreened device cereal sorter, characterized in that the adjustable opening by the lower shutters can be moved up and down along the inner surface of the outer shell.

"Operation" Therefore, all the grains that have been scraped off the screening net by the clogging prevention plate and can be used as sized grains can be effectively collected in the fine grain receiving trough. Since the opening of both outlets can be adjusted effectively by the shutters that can be opened, the flow rate and status of the fine grains can be seen in the grain supply hopper, and re-sorting can be performed very easily.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention.

The grain sorter 10 includes a cylindrical sorting net body 20 and a fried grain spiral body 30 fitted inside the sorting net body 20, which are erected in an outer shell body 40 concentrically and relatively rotatably to each other. And screen 20
Immediately below, a grain receiving cylinder 50, in which the lower part of the fried helix 30 is fitted, is erected inside the outer shell 40, and a hopper-shaped receiving tank 60 is provided above the outer shell 40.

The sorting net body 20 includes a lower cylinder 21, an intermediate net cylinder 22 and an upper cylinder 23.
1 and has a cylindrical shape, and as shown in FIG. 1, many meshes are perforated in the whole area of the mesh cylinder 22.

The sorting net body 20 extends into the outer shell body 40, is pivotally supported by being connected to an upright drive shaft, and the lower end portion of the drive shaft is a gear box G.
Is connected to the motor M via. The upper end of the drive shaft is pivotally supported by a top plate 41 that covers the upper end of the outer shell 40. Also,
The lower cylinder 21 of the sorting net body 20 is rotatably supported by the guide roller 11 arranged on the upper end surface of the granulation cylinder 50.

The fried helix 30 is provided with a spiral blade 32 on the outer circumference of the spiral shaft 31, and the spiral blade 32 is arranged so that the portion facing the lower cylinder 21 of the sorting net body 20 faces the supply area 33 and the mesh cylinder 22. Sorting area 34,
A portion facing the upper cylinder 23 is formed as an extraction area 34 which is divided according to operation areas. The lower end of the fried helix 30 is a screening net.
A system different from 20 is connected to a motor M via a gear box G so as to rotate in a direction opposite to that of the screening net 20.

On the back side of the outer shell 40, a grain supply hopper 42 for introducing the grains to be selected into the grain receiving cylinder 50, and on the front side of the outer shell 40, the grain is squeezed out through the mesh of the mesh cylinder 22. Each of the discharge ports 43 for discharging fine particles to the outside is opened. Furthermore, a grain discharge hole 44 for leaking grains inside is provided on the back side, and a grain discharge port 45 for overflowing the grain from the receiving tank 60 is provided on the front side.

On the outer circumference of the lower cylinder 21 of the sorting net body 20, the scraping blades 13, 13 for transferring the fine particles dropped on the fine particle receiving chamber 12 fixed to the inner peripheral surface of the outer shell body 40 to the discharge port 43. Is fixed.

At the upper part of the upper cylinder 23 of the sorting net 20, there are all discharge ports 24, 24, through which the grains fried to the uppermost part of the extraction area 35 by the fried helix 30 are discharged to the outside of the upper cylinder 23. Perforated around the circumference.

Scraping blades 25, 25 are radially mounted on the outer circumference of the sorting net body below the lower edges of the discharge ports 24, 24.

A raking chamber 70 having a groove-shaped cross section that allows the raking blades 25, 25 ... To be accommodated is formed by a partition member 71 fixed to the outer shell body 40.

The raking chamber 70 has a substantially circular shape that surrounds the outer circumference of the upper cylinder 23 of the sorting net body 20, and has one end opened to form a discharge port 72. The raking blade 25 is set to a height such that the raking blade 25 can be exactly accommodated in the raking chamber 70.

On the outside of the screening net 20, a fine grain receiving trough 80 which is in close contact with and surrounds the net 20 over a half circumference is supported and fixed to the outer shell 40. The fine grain receiving gutter 80 may be surrounded all around, or may be vertically movable. The fine grain receiving gutter 80 is attached so as to be inclined toward an outlet described later. That is, the fine particles sieved by the screening net 20 are collected and discharged. The fine grain receiving trough 80 is provided with two discharge ports, one is a discharge port 81 opening to the upper part in the grain supply hopper 42, and the other is a discharge port communicating with the fine grain receiving chamber 12. 82. The discharge ports 81, 82 are opened and closed by a shutter 83 held so as to be vertically movable along the inner surface of the outer shell 40.

The shutter 83 has an L-shape, and an opening 83a communicating with the discharge port 81 is provided in a vertical portion of the L-shape, and the discharge port 82 is opened and closed at a horizontal portion of the L-shape. Further, as shown in FIG. 4, a discharge passage 84 is formed in the discharge port 81, and a flow meter 84 is provided in the discharge passage 84.
By providing a, the amount of fine particles may be measured, and the shutter 83 may be opened or closed automatically or manually depending on the amount of water. Further, as shown in FIG. 5, the discharge port 81 is provided with a measuring device 84b for measuring the volume or weight of the fine particles, and the shutter 83 based on the measured amount or volume.
May be opened or closed automatically or manually.

The receiving tank 60 has the discharge ports 24, 24 ... ~ the raking chamber 70, ~ the discharge port 72.
It has a storage unit 61 for receiving the grains coming out of it, and an outlet 62 is opened at the lower end. Below the take-out port 62, a scale 63 for placing the bag in the bag A and weighing the bag is installed.

Further, reference numeral 46 in the figure denotes a clogging prevention plate for the screening net body 20 whose tip portion fixed to the outer shell body 40 is made of an elastic body. The clogging prevention plate 46 pushes the fine particles stuck to the screening net 20 into the screening net 20 from the outside and also scrapes off the screening nets.
Fine grain receiving gutter 80 so that 20 meshes can be cleaned
Is disposed above.

Next, the operation will be described.

When the grain to be sorted is supplied from the supply port 42 into the grain receiving cylinder 50 and the motor M is rotated, the rotation of the motor M is transmitted via the gear box G, and the sorting net body 20 is rotated by the drive shaft. The fried helix 30 rotates in the opposite direction to the selection net 20.

The rotation of the fried helix 30 causes the grains in the grain receiving cylinder 50 to be raised by the supply region 33 of the spiral blade 32, and is supplied and conveyed to the selection region 34.

In the sorting area 34, the grains hit the mesh cylinder 22 by centrifugal force, and fine grains smaller than the mesh and slightly small grains that are acceptable as sized grains are sieved to the outside of the mesh cylinder 22 to receive the fine grain receiving gutter. Fall on 80.

In this case, as shown in FIG. 3, the shutter 83 is previously moved upward to close the discharge port 82 on the side of the fine grain receiving chamber 12, and the screening net
All of the fine particles sieved out and dropped at 20 are discharged from the discharge port 81 of the grain supply hopper 42, and the fine particles being discharged are viewed, and if there are many grains that can be used as sized particles, the particle size is unchanged. It is sufficient to continue the re-sorting in the state of, and depending on the state of the fine particles, the shutter 83 is moved downward to discharge the discharge port 81 and the discharge port 82.
It may be opened half way and some fine particles may be re-sorted, and some fine particles may be dropped onto the fine particle receiving chamber 12 and transferred to the discharge port 43 by the scraping blade 13 to be discharged. The degree of opening and closing of both discharge ports 81 and 82 should be set optimally by observing the condition of the fine particles that have been sieved out.

On the other hand, grains larger than the mesh of the mesh cylinder 22 are raised in the sorting area 34 and supplied to the extraction area 35.

Grains fried to the top of the take-out area 35 are
... falls into the raking chamber 70 through the funnel portion 74 or directly. In the raking chamber 70, the raking blades 25, 25 ... Are rotated and circulated, and the grains are transferred counterclockwise in FIG.
The grain is packed in the bag A when it is carried to the discharge port 72, drops into the storage part 61 of the receiving tank 60, and opens the outlet 62.

By moving the fine-grain receiving gutter 80 up and down, the grain shape of the fine grains to be collected is changed from the lower part of the screening net body having many fine particles to be sieved to the upper part of the fine grains to be screened. Therefore, it is possible to adjust the amount of grains that are used as sized grains in fine grains, and it is possible to adjust the amount of grains that are different each year due to the effects of natural conditions such as weather and the same topography. It can be re-sorted. Further, by disposing the clogging prevention plate 46 above the fine grain receiving trough 80, all the grains that are passed as the sized grains scraped off from the sorting mesh can be effectively collected in the fine grain receiving trough 80. Is something that can be done. "Effect of the invention" As described above, the present invention makes it possible to effectively collect, in the fine-grain receiving trough, all the grains that are passed as the sized grains that have been scraped off by the screening mesh by the clogging prevention plate. The opening of both outlets can be adjusted effectively by the shutter that can be operated effectively by the, so that the flow rate and status of the fine grains can be seen in the grain hopper, and the structure is extremely simple, It has an effect that the re-sorting of the grains can be performed in the optimum situation.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention.
The figure is a vertical cross-sectional view of the grain sorter, FIG. 2 is a vertical cross-sectional view of the main part of the grain sorter, FIG. 3 is the vertical cross-sectional view of the main part with the shutter open, and FIG. 4 is another embodiment. FIG. 5 is also a vertical sectional view of the drawing, and FIG. 5 is also a vertical sectional view of another embodiment. 10 …… Grain sorter, 12 …… Fine grain receiving chamber 13 …… Scraping blade, 20 …… Sorting mesh 22 …… Intermediate mesh cylinder, 30 …… Lifting helix 33 …… Supply area, 34 …… Sorting area 35 …… Take-out area, 42 …… Grain supply hopper 43 …… Fine grain discharge port, 46 …… Clogging prevention plate 60 …… Receiving tank, 61 …… Storage section 62 …… Takeout port, 72 …… Discharge port 80 …… Fine grain receiving gutter, 81 …… Discharge port 82 …… Discharge port, 83 …… Shutter 83a …… Shutter opening, 84 …… Discharge path 84a …… Flow meter, 84b …… Measuring device

Claims (4)

[Claims] 1. A cylindrical selection net and a fried helix that are fitted inside the selection net are concentrically and relatively rotatably provided, and the outside of the selection net is provided. An outer shell body is erected to cover the grain, and the sized grain fried by the fried helix is taken out from the discharge port formed on the upper part of the sorting net body and fine grains sieved by the sorting net body are finely divided. In a grain sorter adapted to be discharged from the grain receiving chamber to the outside of the machine, a clogging preventing plate for the sorting mesh body is provided above an inclined fine grain receiving trough that surrounds at least part of the outside of the sorting mesh body. The slanted lower side of the fine grain receiving gutter is connected to an outlet opening at an upper part in the grain supply hopper and an outlet communicating with the fine grain receiving chamber. The lower part of the shutter that can be moved up and down along the inner surface of the outer shell Re-sorting device for grain sorters, characterized by adjustable opening 2. When discharging fine particles to a grain supply hopper for re-sorting, a discharge channel is formed in the discharge port and a flow meter is attached to the discharge channel to measure the flow rate of the fine particles discharged. Then, the shutter is opened / closed, and the re-sorting device of the grain sorter according to claim 1 characterized in that 3. When discharging fine particles to a grain supply hopper for re-sorting, a device for measuring the weight or volume of the fine particles discharged to the discharge port is provided, and based on the measured amount or volume of the device. 2. The re-sorting device for a grain sorter according to claim 1, wherein the shutter is opened and closed by means of a shutter. 4. The re-sorting device for a grain sorter according to claim 1, wherein the fine grain receiving gutter is vertically adjustable.