JPH0356297Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention consists of a grain lifting spiral body in which spiral blades are wound around the outer periphery of a cylinder inside an outer shell, and a large number of grain lifting spiral bodies that are inserted concentrically. The present invention relates to a vertical grain sorting machine that houses a sorting net body provided with small holes, and feeds unsorted grains to the base of a grain-flinging spiral body and sorts the grains while frying them.

``Prior Art'' In a conventional vertical grain sorting machine, as shown in FIG. The hem portion 4 is supported by a plurality of support rollers 5 to prevent the hem portion 4 from swinging around.

Further, the small grains discharged from the sorting net 1 are collected on a lower partition plate 6 provided above the support roller 5, and are collected on a lower partition plate 6 provided above the support roller 5. It was scraped out by scraping blades 7.

``Problem to be solved by the invention'' However, in such a conventional technique, not only the structure near the hem 4 of the sorting net 1 becomes complicated, but also the inner circumference connecting the contact points of each support roller 5 is
There was a problem in that it had to be precisely finished to match the outer periphery of the hem 4 of the sorting net 1, resulting in high costs.

On the other hand, if it is too tight, there is a problem in that it takes time to replace the sorting net 1.

Furthermore, when the lower scraping blades scrape out the small grains on the lower partition plate, the resistance force does not necessarily act equally on each lower scraping blade, and a force perpendicular to the axis acts on the hem 4 of the sorting net 1. It was the cause of this.

The present invention was developed by focusing on the problems in the conventional technology, and aims to provide a vertical grain sorting machine that has an extremely simple structure around the hem of the sorting net and can be manufactured at low cost. It is said that

``Means for Solving the Problems'' The gist of the present invention to achieve this purpose is to provide a supply hopper for supplying unsorted grains and a storage tank for storing selected refined grains outside the body. A grain frying spiral body having a spiral blade wound around the outer periphery of a cylinder and the grain frying spiral body are inserted concentrically into the inside of the shell body,
A sorting net body provided with a large number of small holes, and a driving means for relatively rotating the grain lifting spiral body and the sorting net body, provided at the base of the grain lifting spiral body,
In a vertical grain sorting machine, which removes small grains by the sorting net body and discharges fine grains into the storage tank while grains are fried from a grain receptacle that receives unsorted grains fed from a supply hopper. , the grain receiving cylinder is a bottomed cylinder supported by a plurality of support members protruding from the wall side of the outer shell, and the driving means of the grain lifting spiral and the sorting net are disposed on the bottom back surface. A cylindrical skirt portion without small holes is provided at the hem of the sorting net, and the upper outer periphery of the grain receiving tube is inserted through the skirt portion of the sorting net to separate the overlapping grains. The gap between the upper outer periphery of the cylinder and the lower inner periphery of the skirt portion of the sorting net is completely filled to serve as a lower support part of the sorting net and a packing for preventing grain leakage. A felt packing is provided on either the upper outer circumference of the grain receiving tube or the lower inner circumference of the skirt portion, and a funnel-shaped felt packing is provided below the grain receiving tube to receive the small grains discharged from the sorting net. A vertical grain sorting machine characterized by being equipped with a small grain tray.

"Operation" The small grains that have been sorted and excluded by the sorting net fall along the wall of the outer shell, and are concentrated in one place and discharged to the outside by the funnel-shaped small grain receiver.

Therefore, there is no lower scraping blade, and the structure around the sorting net is extremely simple.

On the other hand, the inner periphery of the cylindrical skirt provided at the lower part of the sorting net and the upper outer periphery of the particle receiving cylinder overlap and have a play gap, and the felt packing fills the gap. Since it is attached to either the outer periphery of the particle tube or the inner periphery of the skirt of the sorting net, when the sorting net rotates, it is rotatably supported at that part and the hem part swings around. There is no need for support rollers, and the structure is simpler. Since the sorting net rotates around the vertical axis, when the sorting net is at rest, no load at rest, that is, no dead load is applied to the felt packing. Furthermore, since there is no lower scraping blade, the bearing load applied to the felt packing is extremely small, resulting in high durability.

On the other hand, since the felt packing completely fills the gap, grains will not leak out from the gap.

When replacing the sorting mesh, since the felt packing is a soft material, by rounding the edges of the skirt part slightly outward, you can easily pull it out and insert it, which requires special care. It does not require , and it is hassle-free.

“Embodiment” An embodiment of the present invention will be described below based on the drawings.

The vertical grain sorter 10 is supported by four legs 11 and has an outer shell 13 that stands high above, and has a supply hopper on the back of the outer shell 13 into which unsorted grains are fed. 14, and a storage tank 15 for temporarily storing refined grains is provided at the front head.

Inside the outer shell 13, there are spiral blades 22 on the circumference of a cylindrical body 21 that is rotatably installed around a vertical axis.
It houses a grain-raising spiral 20 formed by winding the grain-raising spiral 20 and a cylindrical sorting net 30 having a large number of small holes 31 into which the grain-raising spiral 20 is inserted concentrically. A bottomed cylindrical particle receiving tube 45 is provided at the base of the particle receiving tube 45, surrounding the base.

The grain receiving cylinder 45 is firmly supported by a plurality of grain receiving cylinder supporting members 46 that are fixedly provided and protrude from the inner wall of the outer shell 13. It communicates with the supply hopper 14 through a shell tube 14a.

On the bottom back surface of the grain receiving cylinder 45, the grain lifting spiral body 2 is provided.
A driving means 25 is attached for driving the screen 0 and the sorting net 30. The output shaft of the drive means 25 passes through the center of the particle receiving tube 45 and is coupled to the mesh drive shaft 26.

The net drive shaft 26 passes through the inside of the grain lifting spiral 20 and is rotatably supported by the ceiling plate 19.
It is connected to the end plate 32 of 0.

The grain lifting spiral body 20 is concentric with the mesh drive shaft 26,
Moreover, it is configured to be connected to another relatively rotatable output shaft at the lower end plate 21a of the cylindrical body 21 and driven.

An upper cylindrical portion 33 without small holes 31 is provided at the upper end of the sorting net 30, and an upper partition plate 40 is provided from the inner periphery of the outer shell 13 to surround this portion. The upper cylindrical portion 33 is provided with a plurality of discharge ports 34 for discharging the fine grains, and an upper scraping blade 35 for scraping out the fine grains discharged onto the upper partition plate 40 is attached. .

On the other hand, a cylindrical skirt portion 36 without small holes 31 is formed at the hem of the sorting net 30.
The inner periphery of the skirt portion 36 and the upper outer periphery of the grain receiving tube 45 fit together with a loose fit. A felt packing 47 is attached to the fitting portion of the grain receiving tube 45 so as to fill the gap completely. The felt packing 47 expands from the inside and supports the inner peripheral surface of the skirt portion 36. The felt packing 47 is attached to the skirt portion 36.
It may be attached to the inner circumferential side.

Note that the lower end edge of the skirt portion 36 is formed with a smooth radius 36a toward the outside.

On the other hand, the small grain receiver 50 that receives small grains falling from above is formed in a funnel shape downward from the inner periphery of the outer shell 13 so as to wrap around the lower part of the grain receiving tube 45, and has a discharge opening in the center. 51 are provided.

Next, the effect will be explained.

The unsorted grains supplied to the supply hopper 14 are raked up by the spiral blades 22 of the grain lifting spiral body 20 at the base of the grain receiver 45, and are sent upward while being splashed outward by centrifugal force. Good shells that do not pass through the small holes 31 of the sorting net 30 are fried as they are, and are discharged from the discharge port 34 formed in the upper cylindrical part 33 of the sorting net 30, and sent to the upper scraping blade 35. It is scraped out and stored in the storage tank 15.

The small grains that have passed through the small holes 31 of the sorting net 30 are
The grains fall through the space between the inner wall of the outer shell 13 and the sorting net 30, are collected by the grain receiver 50, and are discharged downward from the discharge opening 51.

During the above action, the felt packing 47 connects the upper outer periphery of the particle receiving tube 45 and the skirt portion 36 of the sorting net 30.
Since it fills the space between the inner circumference of the skirt portion 36 and the inner circumference of the skirt portion 36, the lower inner circumference of the skirt portion 36 is expanded and supported.
Even when the end plate 32 provided at the upper end of the sorting net 30 is driven by the net drive shaft 26, the lower skirt portion 36 does not swing around.

In addition, grains that are swung around by the grain lifting spiral body 20 and fall along the inner wall of the sorting net body 30 fall into the grain receiving tube 4.
There is no leakage to the outside of 5.

Since the sorting net 30 and the grain receiving tube 45 are vertically arranged concentrically, when the sorting net 30 is at rest, no dead load other than a gentle expansion force is applied to the felt packing 47. Since there is no lower scraping blade, the bearing load applied to the felt packing 47 is extremely small and does not impair durability.

When replacing the sorting net 30, since the lower end edge of the skirt portion 36 has a smooth roundness 36a, it can be easily removed or fitted in the vertical direction.

"Effect of the invention" According to the vertical grain sorter according to the invention, it is possible to discharge small grains without a scraping means, and the sorting nets are fitted with each other with clearance in the vertical direction. Since the gap between the hem of the filter and the upper part of the particle receiving tube is completely filled with felt packing, and the hem of the sorting net is rotatably supported, the area around the hem of the sorting net is The configuration is extremely simple and can be manufactured at low cost, which greatly contributes to cost reduction.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of the present invention, and Figure 1 is a vertical side view of the entire vertical grain sorter;
Fig. 2 is an enlarged vertical sectional view showing the structure around the hem of the sorting net, Fig. 3 is a sectional view taken along the - line in Fig. 2, and Fig. 4 is a vertical sectional side view of a conventional vertical grain sorter. It is. 10... Vertical grain sorter, 13... Outer shell, 1
4... Supply hopper, 15... Storage tank, 19...
... Ceiling plate, 20 ... Grain frying spiral, 22 ... Spiral blade, 25 ... Drive means, 26 ... Net drive shaft, 3
0... Sorting net body, 31... Small hole, 32... End plate (top of sorting net body), 36... Skirt portion, 38
...lower scraping blade, 45...grain receiver tube, 46...grain receiver tube support member, 47...felt packing, 50...
...small grain receiver.

Claims (1)

[Scope of Claim for Utility Model Registration] A spiral blade is wound around the outer circumference of a cylinder inside an outer shell that is equipped with a supply hopper for supplying unsorted grains and a storage tank for storing selected refined grains outside the body. a grain-fried spiral body, and the grain-fried spiral body is inserted concentrically,
A sorting net body provided with a large number of small holes, and a driving means for relatively rotating the grain lifting spiral body and the sorting net body, provided at the base of the grain lifting spiral body,
In a vertical grain sorting machine, which removes small grains by the sorting net body and discharges fine grains into the storage tank while grains are fried from a grain receptacle that receives unsorted grains fed from a supply hopper. , the grain receiving cylinder is a bottomed cylinder supported by a plurality of support members protruding from the wall side of the outer shell, and the driving means of the grain lifting spiral and the sorting net are disposed on the bottom back surface. A cylindrical skirt portion without small holes is provided at the hem of the sorting net, and the upper outer periphery of the grain receiving tube is inserted through the skirt portion of the sorting net to separate the overlapping grains. The gap between the upper outer periphery of the cylinder and the lower inner periphery of the skirt portion of the sorting net is completely filled to serve as a lower support part of the sorting net and a packing for preventing grain leakage. A felt packing is provided on either the upper outer circumference of the grain receiving tube or the lower inner circumference of the skirt portion, and a funnel-shaped felt packing is provided below the grain receiving tube to receive the small grains discharged from the sorting net. A vertical grain sorting machine characterized by being equipped with a small grain tray.