JPS6197081A - Re-selector for waste grain from vertical type cereal grain selector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention is a vertical grain machine that feeds grains such as rice and wheat from the bottom to the top and separates them into large-diameter grains and small-diameter waste grains. Regarding grain sorting machines.

The applicant filed an application for a vertical grain sorting machine in the U.S. Patent Application Publication No. 1983.
The one published as No.-122079 is known.

The structure of this known vertical grain sorter is that the inner cavity of the square cylindrical shell is divided into an extraction area and a sieving area, and a sorting tube is erected through these extraction area and sieving area. While the grains are sent upward from below using the fitted helical shaft, small-diameter waste grains are sieved out in the sieving area and taken out of the shell, and large-diameter grains are collected from the extraction area into a storage tank and packed into bags. I try to do that.

By the way, in the above-mentioned vertical grain sorting machine, the amount of waste grains contained in the grain sorting in the take-out area varies somewhat depending on the sorting performance and throughput, but it is substantially constant and is very small. However, the allowable amount of waste grains included during grain grading differs depending on the type and grade of grain.

For this reason, as previously filed by the present applicant in Japanese Patent Application No. 71256/1983, a grain lifting tube is provided to mix some of the waste grains sieved out in the sieving area into the granulation in the take-out area. A method of changing the sorting rate by changing the amount of waste particles was proposed.

Problems to be Solved by the Invention In the above-mentioned sorting rate changing means, in order to mix relatively large-diameter waste grains in the waste grains into the grading, a waste grain sorting hole is provided in the grain lifting cylinder and the However, the waste sorting holes are clogged with waste particles having approximately the same diameter as the sorting width, causing clogging and making it impossible to sort out. The means to prevent clogging of this waste sorting hole is to rotate the grain lifting cylinder and sliding a clogging prevention plate on the outer circumferential surface of the grain lifting cylinder, or to fix the grain lifting cylinder to prevent clogging. One possible method is to have the grain-lifting cylinder revolve around the grain-lifting cylinder rather than sliding it into contact with the outer circumferential surface of the grain-lifting cylinder, but both require a drive mechanism to rotate the grain-lifting cylinder or the clogging prevention plate, and the structure is complicated. There are some complications.

In order to solve the above-mentioned problems, the present invention is configured as follows.

That is, the grains are fed into the inner cavity of the shell (3), which is partitioned from the bottom to the top into a sieving area (1) and a take-out area (2), and are fed to the take-out area (2) while sizing large grains and grading smaller grains. In a vertical grain sorter, which is equipped with a sorting cylinder (5) having a sorting hole (4) for sorting into waste grains, the waste grains sieved out in the sieving area (1) are taken out. The grain cylinder (
A waste particle sorting hole (7) having a width wider than the sorting width of the particle size sorting hole (4) was provided at an appropriate position of 6).

■--■ The waste particles that have passed through the particle size regulating hole (4) of the sorting cylinder (5) are a mixture of particles of various sizes. This is the fried grain cylinder (
6) While the grains are lifted through the area provided with the waste grain sorting hole (7), fine waste grains are sieved out, and large-diameter waste grains are lifted as they are and mixed in during grading. However, since the grains are oval rather than spherical, the sorting width of the waste grain sorting hole (7) is the same as that of the grain sorting hole (4) of the sorting tube (5).
) Even if the width is wider than the width of the waste particle sorting hole (7), fewer large-diameter waste particles leak out from the waste particle sorting hole (7), and more fine waste particles leak out to perform the sorting action.

As mentioned above, sorting can be carried out even if the width of the waste particle sorting hole (7) is made larger than the sorting width of the particle size sorting hole. Since the diameter is at least larger than the diameter of the waste particles, the holes will not be clogged with waste particles and clogging will occur.

In this way, there is no need to provide a means for preventing clogging of the waste sorting hole (7) of the particle lifting cylinder (6), and it is possible to realize a waste particle sorting and mixing device with a simple structure.

Ōjōgo Next, embodiments of the present invention will be described with reference to the drawings.

As shown in Fig. 2, the overall structure of the vertical grain sorter is such that grains are fed into the shell (3) at the lower side of a rectangular cylindrical shell (3) that is equipped with a grain sorting mechanism. supply chute (10)
A storage tank (11) for storing sorted grains is protruded from the upper part of the other side, and these supply shoes (10) are provided.
) It has a structure in which a grain lifting cylinder (6) is erected on the side surface except for the mounting side surface and the storage tank (11) mounting side surface.

The internal structure of the shell (3) is as shown in Fig. 1 (from the bottom to the top, the driving area (14) is divided by the bottom plate (12) and the base (13), the base (13) and the lower partition plate). (15
), a sieving area (1) separated by a lower partition plate (15) and an upper partition plate (17), and an extraction area partitioned by an upper partition plate (17) and a canopy (18). It is divided into area (2).

A grain receiving cylinder (19) communicating with the supply shoe (10) is installed on the base (13), and on this grain receiving cylinder (19) there is a sieve area (16) to a sieve area (16). ) to Todori Castle (
A cylindrical sorting tube (5) penetrating through the particle receiving tube (19) and the sorting tube (5) is rotatably installed, and a helical tube (21) is rotatably installed through the grain receiving tube (19) and the sorting tube (5). It is set up.

The sorting cylinder (5) has a grain guiding groove (9) that bulges outward on the peripheral wall of the upper and lower intermediate parts, and an oblong grain-shaped sorting hole ( 4), and a wide-opening discharge window (23) is bored in the outer peripheral wall at the upper end.
3) On the lower side there is an upper circumferential eave (
24), and a lower circumferential eave (25) projecting onto the upper partition plate (15) is provided below the range of the particle size sorting hole (4). These upper and lower circumferential eaves (24) and (25) are provided with a storage tank (11) and a lower grain supply channel ( Scraping blades (27) and (28) for scraping to 26) are fixed.

(50) is a clogging prevention plate that serves to scrape off grains that clog the grain sorting hole (4) of the sorting tube (5), and is brought into sliding contact with the outer peripheral surface of the sorting tube.

A helical shaft (
29) is equipped with a grain lifting cylinder (6). This helical shaft (29) is connected to the motor (
), and the gearbox (3) at the bottom of the base (13).
1) The belt (33) is driven via the human power shaft (32).

The lower part of the lifting cylinder (6) communicates with the sieving area (1) through the lower grain supply channel (26) leading to the upper partition plate (15), and the upper part
It communicates with the removal area (2) through an upper waste grain supply path (8) leading onto the upper partition plate (17).

An oblong waste particle sorting hole (7) slightly wider than the width of the particle sorting hole (4) of the sorting tube (5) is bored in the upper part of the particle lifting tube (6), Fine waste particles are sieved out and fall onto the waste removal shoe 1-(20) at the bottom.

The relationship between the sorting width of the grain sorting hole (4) and the sorting width of the waste grain sorting hole (7) is that the dimension in the direction where the grain size of the grain size is shorter is 1 and 90.
In the case of unpolished rice with +++m and a long direction dimension of about 5 mm, the width of the grain sorting hole (4) is 1.85 mm, and the width of the waste grain sorting hole (7) is about 2 fflI11.

In this way, the reason why the sorting width of the waste sorting hole (7) of the grain lifting tube (6) is made larger than the sorting width of the particle sorting hole (4) of the sorting tube (5) is because of the waste sorting hole. This is to prevent waste grains from clogging the grains in (7). Even if this method is used, since the drilling range of the waste grain sorting hole is narrow and the grains are not spherical, it is difficult to remove large diameter waste grains, and fine grains are removed. The grains are easy to remove.

In addition, the reason why the waste grain sorting hole (7) is provided near the upper waste grain supply path (8) is to prevent the bran generated when the waste grains are sent up in the grain lifting tube (6) to be mixed into the sorted grains. Waste particle sorting hole (7
) to take it out to the outside. A mixing amount adjustment port (49) is provided above the waste particle sorting hole (7) to adjust the amount of waste particles extracted and supplied to the supply area (2). A semi-cylindrical shutter (35) is pressed against this mixing amount adjustment port (49) by a spring (37) interposed between it and a cover (36) that covers the outer periphery of the grain lifting cylinder (6). In addition to pushing the lever (38) fixed to the shutter (35) so that it can be pushed open due to pressure increase due to debris clogging in the lifting tube (6), the cover (36) is
) and slides up and down to adjust the degree of opening of the mixing amount adjustment port (49).

A waste grain outlet (40) is provided at the lower part of the grain lifting cylinder (6),
The above-mentioned upper shutter (35) is connected to this waste particle outlet (40).
) is provided with a shutter (42) which is opened by a rise in internal pressure using a spring (41), and this shutter (
A lever (43) fixed to the lever (42) is provided to protrude outward from the long (44) of the cover (36), and is slid up and down to open and close the waste outlet (40).

A large-diameter waste particle outlet (2
2), and the inside of this large-diameter waste particle outlet (22) is opened and closed by a shutter (34) connected to a lever (45). (46) is the mixing amount adjustment port (49) at the top.
This is a guide plate that guides large-diameter waste particles falling from the large-diameter waste particle outlet (22).

By appropriately switching the shank (34), large-diameter waste particles can be taken out from the large-diameter waste particle outlet (22), or the lower waste particle extraction shoe (20) can be mixed with flowing fine waste particles and taken out. You can do that.

Next, the sorting action in this vertical grain sorter will be explained as follows.

The grains supplied from the supply chute (10) to the grain receiving tube (19) are transferred to the sorting tube (5) by rotation of the spiral tube (21).
The inside of the grain is fried. Then, the particle size sorting hole (
4) In the drilling area, small-diameter waste particles are sieved out to the sieve area (1), and large-diameter regular particles ascend directly to the discharge window (23).
) into the extraction area (2).

The sorted particles released onto the upper partition plate (17) are transferred to the sorting tube (5).
According to the rotation of the storage tank (
11) It is pushed inwards.

The waste grains that accumulate on the lower partition plate (15) are scraped by scrapers (2 days) to the lower grain supply channel (26), and are sent to the grain lifting tube (4).
).

Then, the waste grain outlet (40) provided at the bottom of the grain lifting cylinder (6)
If the shutter (42) of ) is open, the waste particles are directly taken out from the waste removal shoe (20). Furthermore, if the shutter (42) is closed, the waste particles rise in the lifting cylinder (6), fine waste particles are removed by the waste particle sorting hole (7), and the waste particles are removed from the upper waste particle supply channel (8). ) through the supply area (
2) It is mixed into the grading process.

When the shutter (35) of the mixing amount adjustment port (49) is opened to adjust the amount of waste particles mixed during grading, the waste particles flowing out from the mixing amount adjustment port (49) fall downward and become large. Depending on the switching state of the switching shutter (34) of the large-diameter waste particle outlet (22), fine particles can be taken out from the large-diameter waste particle outlet (22), or fine particles can be taken out from the lower waste particle extraction shoe (20). It is taken out to the outside along with the grains.

The sorted particles accumulated in the storage tank (11) are removed from its outlet (47).
), the shutter (48) provided at the bottom is opened as appropriate, and the material is thrown into a bag placed below and packed in the bag.

[Brief explanation of the drawing]

Figures 1 and 2 show a first embodiment, and Figure 3 shows another embodiment. Figure 1 is a front sectional view, Figure 2 is a right side view, and Figure 3 is a partial front sectional view. It is a diagram. (1)... Sieving area (2)... Removal area (3)...
Shell body (4)... Grain size sorting hole (5)... Sorting tube
(6)... Grain lifting cylinder (7)... Waste particle sorting hole

Claims (1)

[Claims] [1] A sieving area (1) and a take-out area (
2) Into the inner cavity of the shell body (3), which is divided into
2) A vertical grain sorter is equipped with a sorting cylinder (5) with a sorting hole (4) that separates large grains from large grains and smaller waste grains while being sent to a sieve. Grain lifting tube (6) that sends the waste grains sieved out in area (1) to removal area (2).
A waste grain re-sorting device for a vertical grain sorter, characterized in that a waste grain sorting hole (7) having a width wider than the sorting width of the grain size sorting hole (4) is provided at an appropriate position. [2] The vertical grain sorter according to claim 1, wherein the waste grain sorting hole (7) provided in the grain lifting cylinder (6) is provided near the upper outlet of the grain lifting cylinder (6). Waste particle re-sorting device.