JPH0714505B2 - Vertical grain sorter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION “Industrial field of application” The present invention stores a sieving mesh body that is rotationally driven and a fried grain spiral body that rotates in the sieving mesh body in a vertically long shell, The present invention relates to a vertical grain sorter in which grains are fried by a spiral body and small grains are passed through the small holes of a sorting net for sorting.

"Prior art" In order to effectively feed the grain, it is connected to the lower end of the sorting net and rotatably erected so as to rotate integrally with the outer circumference of the fried helix, and the grain induction is introduced into the base. It has a mouth, and the outer periphery has a grain guiding cylinder that is equipped with a guide vane that pushes down the grain and guides it to the grain guiding port, and a taper that forms an inverted frustoconical base shape. There is a vertical grain sorter that surrounds the grain guiding cylinder and receives the grain from the supply hopper outside the shell and supplies the grain to the grain guiding port of the grain guiding cylinder in the lower part of the shell. Proposed.

In such a vertical grain sorter, as shown in FIG.
The bottom surface of the grain receiving cylinder 1 is connected below the taper portion 2, and the grain guiding cylinder body 5 is slidably supported on the bottom surface through the packing 3 during rotation. At least the outer surface of the packing 3 is brought into contact with the outer periphery of the lower surface, or a small amount of the horizontal portion 4 is left at the lower end portion.

"Problem to be solved by the invention" However, in such a vertical grain sorter, the opening lower end edge 6a of the grain guiding port 6 of the grain guiding cylinder 5 is located above the lower end line of the taper portion 2. The grain G that has fallen into the triangular cross section formed by the tapered surface of the tapered portion 2 and at least the side edge of the packing cannot remain in the grain guiding cylinder 5 and remains there. Fine powder such as bran is accumulated around this flow path.

Although these are few, if neglected,
Although it is a small amount, there is a possibility that it will be clogged in the gap over a long period of time and increase the operating load, putrefaction or insects may occur, disassembling and cleaning must be done frequently, and it is complicated and maintenance is poor. .

The present invention has been made by paying attention to such a conventional problem, and by adding a simple means, grains, bran, etc. do not remain, and decay and insect sticking do not occur. ,
It is intended to provide a vertical grain sorter excellent in maintainability.

"Means for Solving the Problem" The gist of the present invention for achieving the above-mentioned object is: 1 a vertically elongated shell body, a rotationally driven selection net, and a fried grain rotating in the selection net. In a vertical grain sorter configured to vertically house a spiral body and to store grains by a fried spiral body, and to sort small grains by passing through small holes of a sorting net, In the lower part of, is rotatably erected so as to rotate integrally with the outer periphery of the fried helix coupled to the lower end of the selection net, and has a grain guide port for introducing grains to the base, Is a grain guide cylinder equipped with winding guide blades that push down the grain and guide it to the grain guide port, and an inverted truncated conical base shape having a taper portion facing the grain guide port. Surrounding the grain guiding cylinder, receiving the grain from the supply hopper outside the shell, and receiving the grain guiding port of the grain guiding cylinder. A grain receiving cylinder to be supplied is provided, and at the tapered portion of the grain receiving cylinder, a mesh-shaped discharge window for discharging fine powder is provided, and discharge blades facing the discharge window are provided on the outer periphery of the grain guiding cylinder. A vertical grain sorter characterized by being fixedly installed.

2 The outer periphery of the bottom plate of the grain guiding cylinder slidably contacts with the bottom surface of the grain receiving cylinder that follows the taper portion through a packing so as to be slidable during rotation.
The vertical grain sorter according to claim 1 is characterized in that the tapered portion of the grain receiving cylinder is in contact with the lower portion of the grain guiding cylindrical body at least above the upper surface of the packing.

"Operation" The unsorted grain is fed to the feed hopper, and the vertical grain sorter is started.

In the grain receiving cylinder provided at the base of the fried helix, the unsorted grain fed from the supply hopper rotates in the same direction as the sorting net. The grains are pushed downward by the blades, and the grains are fed from the multiple grain guiding ports provided on the lower peripheral surface of the grain guiding cylinder to the starting end of the fried helix that rotates in the direction opposite to the sorting net. It

Grains scraped up by the fried helix are subjected to the sorting action by the sorting net while being splashed outward, and the small grains pass through the small holes of the sorting net and are removed from the sorting net. The good grains that do not pass through the sorting net are raised as they are and sent to the outside.

The unsorted grains fed from the supply hopper are pushed down by the grain guide blades and introduced from the grain guide port. The supplied grains do not interfere with each other and are smoothly fed, and a sufficient amount of fed grains can be obtained.

Fine powder such as bran, which tends to be deposited in the flow path near the tapered portion of the grain receiving cylinder, is transferred to the outside through the stitches of the discharge window. The discharge blade scrapes up fine powder such as bran or grain that is trying to stay in the passage to prevent the grain from remaining, and promotes discharge of fine powder such as bran.

If the lower end of the tapered part of the grain receiving cylinder is in contact with the lower part of the grain guiding cylinder at least above the upper surface of the packing attached to the lower surface of the shell guiding cylinder, the grain is It does not stay in the triangular cross section formed by the outer peripheral wall surface of the guide cylinder and the tapered portion.

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

1 to 4 show an embodiment of the present invention.

As shown in FIGS. 3 and 4, the vertical grain sorter 10
Is a vertically erected outer shell body 11, and a fried grain spiral body 14 formed by winding a spiral blade 13 around the outer circumference of a cylindrical body 12, and concentric with the fried grain spiral body 14 and surrounding the outside thereof, A sorting net body 16 having a large number of small holes 15 is stored.

The fried grain spiral body 14 and the sorting net body 16 are rotationally driven in opposite directions by a motor 18 with a speed reducer provided below a base plate 17 that divides the outer shell body 11 into upper and lower parts.

A supply hopper 19 for supplying unselected grains is provided outside the outer shell 11, and a storage tank (not shown) for temporarily storing refined grains is provided at the head.

On the upper surface of the base plate 17, a grain receiving cylinder 20 having a cylindrical shape and a bottom portion having a tapered portion 21 having a truncated cone shape is provided upright.
The upper open end forms a horizontally open peripheral edge portion 22 and a cylindrical peripheral edge standing surface 22a. The supply hopper 19 has an opening 19a near the center of the grain receiving cylinder 20.

On the other hand, in the lower part of the sorting net body 16, the grain guiding cylinder 30 having almost the same diameter is provided.
Is provided so as to be attachable to and detachable from the lower end of the sorting net body 16.

The upper end portion 31 of the grain guiding cylinder body 30 can be closely fitted into the end ring member 16a that constitutes the lower end portion of the selection net body 16, and is attached to the end ring member 16a of the selection net body 16. Is the grain induction cylinder 30
Engaging notch 16b for driving is engraved. A partition disk 32 is horizontally fixed to the outer periphery of one of the grain guiding cylinders 30, and a plurality of locking members 33 that lock with the engaging cutouts 16b are arranged.

The partition disc 32 has a circular outer circumference, is in sliding contact with the packing 23 on the horizontally formed peripheral edge 22 of the grain receiving cylinder 20, and the outer periphery is full of the inner periphery of the peripheral edge standing surface 22a of the grain receiving cylinder 20. Made of size. Further, as described above, the locking member 33 locks the engaging notch 16b of the selection net body 16 to transmit the rotation of the selection net body 16 to the grain guiding cylinder 30, and at the same time the small size of the selection net body 16 The small grains that have passed through the holes 15 and have fallen are discharged from the small grain discharge pipe 11a to the outside.

At the lower end of the grain guiding cylinder 30, a plurality of grain guiding ports 34, 3
4 ... has been drilled. Upper edge line 3 of these grain induction ports 34
4a is provided considerably below the lower edge of the opening 19a in the granulating cylinder 20 of the supply hopper 19.

Further, a plurality of grain guide blades 35 having a starting end close to the upper edge line 34a of each grain guide port 34 and directed downward during rotation are provided. The grain guide cylinder 30 has a bottom plate 37 that closes the bottom of the grain guide cylinder 30 slidably mounted on the bottom portion 20a of the granule cylinder 20 via a packing 36 during rotation.

As shown in FIGS. 1 and 2, the tapered portion of the grain receiving cylinder 20
The inner wall of 21 is in contact with the grain guiding cylinder 30 at a position not lower than at least the upper surface of the bottom plate 37 of the grain guiding cylinder 30. The packing 36 is mounted so that the outer periphery thereof is guided to the inner periphery of the cylindrical portion 21a following the taper portion 21.

The center of the bottom plate 37 of the grain guiding cylinder 30 is rotatably loosely fitted to the boss 18a of the motor 18 with a speed reducer, and is pivotally supported. Are superposed through. The bottom plate 14a is fixed to and pivotally supported by the output shaft 18b of the motor 18 with a reducer.

The gap S has a space in the central portion and has a fried helix 14 at the outer periphery.
And a narrow slit S1 that opens between the grain guiding cylinder 30 and the grain guiding cylinder 30.

Inside the gap S, a fine powder discharge fan 38 pivotally attached to the boss 18a of the speed reducer motor 18 and rotating integrally with the fried helix 14
Is provided.

The fine powder discharging fan 38 includes fins 38b, 38b ... On the outer periphery of the base plate 38a that abuts the lower surface of the bottom plate 14a.

A discharge window 24 is opened in the tapered portion 21 of the grain receiving cylinder 20, and a net 24a for passing only fine powder such as bran is stretched in the discharge window 24.
Further, a discharge blade 39 facing the discharge window 24 is fixed to the outer periphery of the grain guide cylinder 30. The leading edge of the discharge blade 39 is along the surfaces of the discharge window 24 and the tapered portion 21.

Next, the operation will be described.

Vertical grain sorter 10 that feeds unsorted grains to the feed hopper 19
When starting, the grain guide cylinder 30 slowly rotates together with the selection net body 16, and the grain guide blades 35 push the grain fed from the opening 19a in the grain receiver 20 of the supply hopper 19 downward. To send. The grain is pushed into the grain guiding cylinder 30 from the grain guiding port 34 along the tapered portion 21 of the grain receiving cylinder 20.

Inside the grain guiding cylinder 30, the fried helix 14 rotates in the opposite direction at high speed to scrape the grain, and the small holes in the sorting net 16
Sorted by 15. That is, the small grains that have passed through the small holes 15 fall in the space between the outer periphery of the selection net body 16 and the inner wall of the outer shell body 11.

The small grains that have fallen try to accumulate on the surface of the partition disc 32 provided on the outer periphery of the grain guiding cylinder 30, but the partition disc
Since 32 rotates together with the sorting net body 16, the small grains are splashed outward and discharged from the small grain discharge pipe 11a to the outside.

On the other hand, good grains that do not pass through the small holes 15 of the sorting net body 16 are fried upward and accumulated in a storage tank (not shown) while repeating a part of falling.

The opening 19a of the supply hopper 19 is not directly opened to the spiral blade 13 of the fried helix 14, and since the grain guide port 34 is provided considerably below the opening 19a, the fried helix 14 is With no rebound, the effect of the inclination of the taper portion 21 of the grain receiving cylinder 20 and smooth grain feeding are achieved, and a sufficient feeding amount is obtained.

Even when the sorting work is almost completed and the amount of grains supplied from the supply hopper 19 is decreasing, the opening 19a in the grain receiving cylinder 20 of the supply hopper 19 is opened at a position higher than the grain guide port 34. Since it does not directly open to the fried helix 14, it is not repelled by the fried helix 14 and is fed into the grain receiving cylinder 20 to the end.

During the sorting operation, the unselected grains supplied from the supply hopper 19 are supplied to the supply hopper 19 by the grain guide blades 35 of the grain guide cylinder 30.
While being pushed into the grain guiding cylinder 34 from the opening 19a to the grain guiding port 34 along the tapered portion 21 of the grain receiving cylinder 20, fine powder such as bran is used as a bottom plate of the grain guiding cylinder 30. The slit S1 tries to enter the gap S between the 37 and the bottom portion 14a of the fried helix 14.

In the gap S, the fine powder discharge fan 38 is rotating together with the sorting net body 16, so that the fine powder that is about to enter is the fin 38b.
Thus, the dust is repelled by the outer periphery and is prevented from entering, and even if it is intruded, it is pushed out and fine powder does not accumulate inside the gap S.

The lower part of the grain receiving cylinder 20 has a taper portion 21.
Since the lower end line of 21 is not lower than the upper surface of the bottom plate 37 of the grain guiding cylinder 30, the grains in the receiving cylinder are completely exhausted through the grain guiding port 34 to the end. It is taken into the inside and undergoes a sorting action, and does not produce residual grains.

Fine powder such as bran that has tried to be deposited in the flow path near the taper portion 21 passes through the mesh of the discharge window 24 and is discharged to the outside, so that almost no residue is generated in the flow path.

In addition, in the above-mentioned embodiment, the cylindrical portion following the taper portion is in contact with the outer periphery of the packing, but it is possible to simply provide a meshed discharge window and discharge blades, and to show a fine powder discharge fan as a separate body. However, it goes without saying that fins may be fixed to the lower surface of the bottom plate of the fried helix.

"Effect of the invention" According to the vertical grain sorter according to the present invention, the lower part is provided with the grain receiving cylinder having the tapered portion of the inverted truncated cone, and the grain is provided at the grain guiding port of the grain guiding cylinder. When the grains are fed, the tapered portion is provided with a net-like discharge window for fine powder such as bran, and a discharge blade is provided. Is hardly left behind, and malfunctions due to increased load and spoilage due to residual fine powder do not occur, maintenance frequency such as cleaning can be reduced, and it becomes a vertical grain sorter with good usability. .

Further, in the case where the lower end line of the tapered portion is in contact with the base of the grain guiding cylinder at a position higher than at least the upper surface of the packing, there is no recess where bran or the like remains, and the residue can be almost completely eliminated. it can.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing an assembled state of a grain receiving cylinder of a vertical grain sorter, a sorting net body, and a fried helix, and FIG. 2 is a perspective view in which a portion near the taper portion is broken and omitted. Fig. 3 is a cross-sectional view of the lower part of the vertical grain sorter cut by a vertical plane, Fig. 4 is a perspective view of the base of the sorting net and the grain guiding cylinder, and Fig. 5 is a conventional vertical grain sorter. It is sectional drawing of the principal part. 10 …… Vertical grain sorter, 11 …… Outer shell 14 …… Lifted grain spiral, 14a …… Bottom plate 16 …… Sorting net, 19 …… Supply hopper 19a …… Opening, 20 …… Grain barrel 20a …… bottom of grain receiving cylinder, 21 …… tapered portion 21a …… cylindrical portion, 24 …… discharging window 24a …… mesh, 30 …… grain guiding cylinder 32 …… dividing disc, 33 …… locking Member 34 …… Grain guide port, 35 …… Grain guide blade 36 …… Packing, 37 …… Bottom plate 38 …… Fine powder discharge fan, 39 …… Discharge blade

Front page continuation (72) Inventor Hisao Wakui 4290 Fujioka, Fujioka-machi, Shimotsuga-gun, Tochigi Prefecture Tiger Kawashima Co., Ltd. (56) References JP-A-59-150582 (JP, A) , U) Tokuhei Hei 3-80549 (JP, B2) Heikō Hei 5-41825 (JP, Y2) Heikō Hei 5-38869 (JP, Y2) Heikō Sho 63-18467 (JP, Y2) Heikō Sho 63-26211 (JP, Y2) Actual Public Flat 5-38872 (JP, Y2) Actual Public Flat 5-38873 (JP, Y2)

Claims (2)

[Claims] 1. A vertically elongated shell body is erected so as to stand a rotation-driving selection net body and a fried helix that rotates in the selection net, and fried grains by the fried helix, In a vertical grain sorter adapted to pass small grains through the small holes of a sorting net, the lower part of the shell body is connected to the lower end of the sorting net at the outer periphery of the fried helix. Grains that are rotatably erected so as to rotate integrally, have a grain guide port for introducing grains at the base, and are equipped with a guide vane wound around the outer periphery to push down the grains and guide them to the grain guide port. The grain guiding cylinder and the inverted frusto-conical base shape surround the grain guiding cylinder having a taper portion that faces the grain guiding port, and receives the grain from the supply hopper outside the shell to receive the grain. A grain receiving cylinder for supplying to the grain guiding port of the grain guiding cylinder is provided, and a taper part of the grain receiving cylinder is provided with a net for discharging fine powder. A vertical grain sorter characterized in that a discharge window is provided, and discharge blades facing the discharge window are fixedly provided on the outer periphery of the grain guiding cylinder. 2. The outer periphery of the bottom plate of the grain guiding cylinder slidably contacts the bottom surface of the grain receiving cylinder following the taper portion through a packing, and the taper portion of the grain receiving cylinder is at least the upper surface of the packing. The vertical grain sorter according to claim 1, characterized in that it is in contact with a lower portion of the grain guiding cylinder at a higher position.