JP2620966B2 - Vertical grain sorter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a vertically elongated shell body, which accommodates a rotating mesh-driven sorting net and a fried helix rotating in the sorting mesh, and The present invention relates to a vertical cereal sorter in which kernels are fried by a spiral, and small grains are sorted by passing through small holes of a sorting net.

"Conventional technology" In order to feed the grains effectively, it is connected to the lower end of the sorting net and is rotatably erected so as to rotate integrally with the outer periphery of the helix, and introduces the grains to the base. It has a mouth, a grain guiding cylinder with a guide blade wound around it to push the grain down to the grain guiding port, and a tapered part having an inverted frustoconical base shape. A vertical grain sorter, which surrounds the grain guiding cylinder and receives a grain from a supply hopper outside the shell and supplies the grain to a grain guiding port of the grain guiding cylinder at a lower portion of the shell, is provided. Proposed.

In such a vertical grain sorter, a spiral bottom plate that closes the bottom of the helix spiral is superposed with a gap on the induction cylinder bottom plate that closes the bottom of the grain induction cylinder, and both rotate relatively. Therefore, the gap was made as small as possible to make the gap.

[Problems to be Solved by the Invention] However, in such a vertical grain sorter, although the gap between the guide cylinder bottom plate and the spiral body bottom plate is small, fine powder such as bran may enter and accumulate. Yes, if maintenance is neglected, there is a risk that even if it is minute, it may become clogged in the gaps for many months and increase the operating load, or the bran may rot or insects may occur. There was a problem that sex was bad.

The present invention has been made in view of such a conventional problem, by adding a simple means, no bran or the like remains in the gap, without causing rot or insects, It aims to provide a vertical grain sorter with excellent maintainability.

Means for Solving the Problems The gist of the present invention for achieving the above object is to provide a sorting net which is driven to rotate in a vertically long shell, and a hoisting spiral which rotates in the sorting net. In a vertical cereal sorter in which the grains are fried by a filing spiral, and the small grains are passed through the small holes of the sorting net to be sorted, At the lower part, it is connected to the lower end of the sorting net and is rotatably erected so as to rotate integrally with the outer periphery of the fried helical body, and has a grain guiding port for introducing kernels at the base, and the outer periphery has A grain guiding cylinder equipped with winding guide blades for pushing down a grain to guide the grain to the grain guiding port, and a tapered portion having an inverted frustoconical base shape surrounding the grain guiding cylinder. A grain receiving cylinder that receives the grains from the supply hopper outside the shell and supplies the grains to the grain guiding port of the grain guiding cylinder; A spiral bottom plate closing the bottom of the fried spiral is superposed with a gap on the induction cylinder bottom plate closing the bottom of the grain induction cylinder, and a fine powder discharge fan that rotates in the gap is provided. A vertical grain sorter characterized by:

[Action] Unsorted grains are supplied to the supply hopper, and the vertical grain sorter is started.

The unsorted grains fed from the supply hopper are fed into the grain receiving cylinder provided at the base of the helix spiral, and the grain guidance of a grain guiding cylinder of approximately the same diameter that rotates in the same direction as the sorting net. The grains are pushed downward by the blades, and the grains are fed from the plurality of grain guiding ports provided on the lower peripheral surface of the grain guiding cylinder to the beginning end of the fried spiral rotating in the opposite direction to the sorting net. You.

The kernels scooped up by the spiral helix are sorted out by the sorting net while being bounced outward, and the small grains pass through the small holes of the sorting net and are removed from the sorting net. Good grains that do not pass through the sorting net are ascended and sent out.

The unsorted grains fed from the supply hopper are pushed downward by the grain induction blades and are introduced from the grain induction port, so that the kernels that are scooped up by the spiral blades of the filing spiral and the supply hopper Smooth feeding is performed without interfering with the supplied grains, and a sufficient grain feeding amount can be obtained.

Fine powders such as bran trying to enter the gap between the guide cylinder bottom plate and the spiral body bottom plate are prevented from entering by the bran discharge fan, and are discharged even if they enter.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

 1 to 4 show one embodiment of the present invention.

As shown in FIGS. 3 and 4, the vertical grain sorter 10
In the outer shell 11 vertically erected, a raised spiral 14 formed by winding a spiral blade 13 around the outer periphery of a cylindrical body 12, and surrounding the outer periphery coaxially with the raised spiral 14, The sorting net 16 having many small holes 15 is stored.

The helix 14 and the sorting net 16 are rotationally driven in opposite directions by a motor 18 with a speed reducer provided below a base plate 17 that partitions the inside of the outer shell 11 up and down.

On the eleventh floor of the outer shell, there is a supply hopper 19 for supplying unsorted grains.
The head is provided with a storage tank (not shown) for temporarily storing the grain.

On the upper surface of the base plate 17, a particle receiving cylinder 20 having a cylindrical shape, a bottom portion having a tapered portion 21 having a frusto-conical shape is erected, and an upper open end is a horizontally opened peripheral portion 22. Then, a cylindrical peripheral edge standing surface 22a is formed. The supply hopper 19 has an opening 19a near the center of the particle receiving cylinder 20.

On the other hand, in the lower part of the sorting net 16, a grain induction cylinder having almost the same diameter
30 is provided detachably from the lower end of the sorting net 16.

The upper end 31 of the grain guiding cylinder 30 can be closely inserted into an end ring member 16a constituting the lower end of the sorting net 16, and can be inserted into the end ring 16a of the sorting net 16. Is the grain induction cylinder 3
An engagement notch 16b for driving 0 is formed. 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 the engagement notch 16b are provided.

The partitioning disc 32 has a circular outer periphery and is in sliding contact with the packing 23 on the horizontally formed peripheral edge 22 of the granule receiving cylinder 20, and the outer periphery is fully filled with the inner peripheral surface 22 a of the granule receiving cylinder 20. It is big. Further, as described above, the locking member 33 is locked with the engagement notch 16b of the sorting net 16 to transmit the rotation of the sorting net 16 to the grain guiding cylinder 30 and to reduce the size of the sorting net 16 The small grains falling through the holes 15 are discharged to the outside from the small grain discharge pipe 11a.

At the lower end of the grain guiding cylinder 30, a plurality of grain guiding ports 3 are provided.
4,34 ... are drilled. The upper edge line 34a of the grain guide port 34 is provided considerably below the lower edge of the opening 19a in the receiving cylinder 20 of the supply hopper 19.

Further, a plurality of grain guiding blades 35 having a starting end close to the upper edge line 34a of each grain guiding port 34 and directed downward during rotation are provided. The grain guiding cylinder 30 is slidably mounted on the bottom 20a of the grain receiving cylinder 20 via a packing 36 with a bottom plate 37 closing its bottom slidably.

As shown in FIG. 1 and FIG. 2, the center of the bottom plate 37 is rotatably and loosely fitted to the boss 18a of the motor 18 with the speed reducer, and is pivotally supported. The bottom plate 14a overlaps with a gap S therebetween. The bottom plate 14a is fixedly connected to an output shaft 18b of the motor 18 with a speed reducer and is pivotally supported.

The gap S has a space at the center, and a fried spiral at the outer periphery
They communicate with each other by a thin slit S1 that opens between 14 and the grain guiding cylinder 30.

In the gap S, a fine powder discharge fan 38 pivotally mounted on a boss 18a of the motor 18 with a speed reducer and rotating integrally with the helix 14
Is provided.

The fine powder discharge fan 38 has fins 38b on the outer periphery of a base plate 38a that abuts on the lower surface of the bottom plate 14a.
A polygonal pivot hole 38c that fits into the boss 18a of the motor 18 with a speed reducer is formed in the center of the hole.

 Next, the operation will be described.

A vertical grain sorter that supplies unsorted grains to the supply hopper 19
When starting 10, the grain guiding cylinder 30 slowly rotates together with the sorting net 16 and the grain guiding blades 35 move the grains fed from the opening 19a in the receiving cylinder 20 of the supply hopper 19 downward. Push. The grain is pushed into the inside of 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 helix spiral 14 rotates at a high speed in the opposite direction to scoop up the grains, and is sorted by the small holes 15 of the sorting net 16. That is, the small kernels that have passed through the small holes 15 fall in the space between the outer periphery of the sorting net 16 and the inner wall of the outer shell 11.

The small grains that have fallen tend to accumulate on the surface of the partition disk 32 provided on the outer periphery of the grain induction cylinder 30, but since the partition disk 32 is rotating together with the sorting net 16, The small grains are bounced outward and are discharged to the outside from the small grain discharge pipe 11a.

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

The opening 19a of the supply hopper 19 is not directly opened to the spiral blade 13 of the helix spiral 14, and the kernel induction port 34 is provided considerably below the opening 19a. There is no rebound, and the effect of the inclination of the tapered portion 21 of the grain receiving cylinder 20 is achieved, and the smooth feeding of the grains is achieved, and a sufficient feeding amount is obtained.

Even when the sorting operation is about to end and the supply amount of the grain from the supply hopper 19 is decreasing, the opening 19a in the receiving cylinder 20 of the supply hopper 19 is opened at a position higher than the grain induction port 34. Because it does not open directly into the helix 14
The powder is not rebounded by the helix 14 and is fed into the receiving cylinder 20 to the end.

During the sorting operation, unsorted grains supplied from the supply hopper 19 are supplied to the supply hopper by the grain guiding blades 35 of the grain guiding cylinder 30.
From the opening 19 a of 19 to the grain guiding port 34 along the tapered portion 21 of the grain receiving cylinder 20, while being further pushed into the grain guiding cylinder 30, fine powder of bran etc. An attempt is made to enter the gap S between the bottom plate 37 and the bottom plate 14a of the helix 14 through the slit S1.

In the gap S, the fine powder discharge fan 38 rotates together with the sorting net 16, and the fins 38b constantly generate convection, so that air tends to go out of the slit S1 through the gap S, so that the air enters. The fine powder to be blown out is prevented from entering, and even if the fine powder enters, no fine powder accumulates inside the gap S or the slit S1.

In the above-described embodiment, the fine powder discharging fan 38 is shown as a separate member. However, it goes without saying that fins may be fixed to the lower surface of the bottom plate of the helix.

[Effects of the Invention] According to the vertical grain sorter according to the present invention, a discharge fan is provided in the gap between the bottom plate of the grain guiding cylinder and the bottom plate of the helix spiral, and bran or the like that attempts to enter the gap. Because the fine powder was prevented from entering or the fine powder was discharged,
Almost no fine powder such as bran remains in the gap, no malfunction due to an increase in load, no rot or insects due to the remaining fine powder, and the frequency of maintenance such as cleaning can be reduced. It becomes a vertical grain sorter.

[Brief description of the drawings]

1 to 4 show an embodiment of the present invention.
The figure is a cross-sectional view showing the assembled state of the receiving cylinder, the sorting net, and the helix spiral of the vertical grain sorter, FIG. 2 is a perspective view of the fine powder discharge fan, and FIG. 3 is the lower part of the vertical grain sorter. FIG. 4 is a cross-sectional view taken along a vertical plane, and FIG. 4 is a perspective view of a base of the sorting net and a grain guiding cylinder. 10 ... Vertical grain sorter, 11 ... Outer shell 14 ... Heating spiral, 14a ... Bottom plate 16 ... Sorting net, 19 ... Supply hopper 19a ... Opening, 20 ... Receiver cylinder 20a: bottom part of receiving cylinder, 21: tapered part 30 ... grain guiding cylinder, 32 ... partitioning disk 33 ... locking member, 34 ... grain guiding port 35 ... grain guiding blade , 36… packing 37… bottom plate, 38… fine powder discharge fan

Claims (1)

(57) [Claims] 1. A vertically elongated shell body, in which a sorting net that is driven to rotate and a helix that rotates in the sorting net are erected and housed, and the kernel is hulled by the helix. In a vertical grain sorter in which small grains are passed through small holes of a sorting net, the small grains are connected to a lower end of the sorting net at a lower portion of the shell, and at the outer periphery of the unwinding spiral. A grain that is rotatably erected so as to rotate integrally, has a grain guiding port for introducing a grain at the base, and is equipped with a guide blade that winds down the grain on the outer periphery and guides the grain to the grain guiding port. A grain guiding cylinder, a tapered portion having an inverted frustoconical base shape, surrounding the grain guiding cylinder, receiving a grain from a supply hopper outside the shell, and A grain receiving cylinder to be supplied to a grain guiding port; and a bottom of the fried spiral on a guiding cylinder bottom plate that closes a bottom of the grain guiding cylinder. A spiral grain bottom plate is overlapped with a gap, and a fine powder discharge fan that rotates in the gap is provided.