JPH0541825Y2 - - Google Patents

Description

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

``Prior art'' When grains are sorted by a grain sorter, the resulting refined grains exceed the desired grade and become high-quality grains, resulting in an excessive amount of small grains being discharged, which is extremely uneconomical. It may become.

Conventionally, as a countermeasure for this, the discharged small grains were returned to the supply side and mixed with unsorted grains, or mixed and discharged into a storage tank for refined grains.

``Problems to be solved by the invention'' However, such conventional methods not only require complicated equipment and high costs, but also have problems such as uneven mixing, making it difficult to obtain uniform milled grain. Ta.

The present invention was developed by focusing on these conventional problems, and provides a vertical grain sorting machine that reduces the sorting ability of the sorting machine and obtains the desired grade of grain with a simple configuration. It is intended to.

``Means for Solving the Problems'' The gist of the present invention for achieving the above purpose is to provide a grain-flipping spiral body in which a spiral blade is wound around the outer periphery of a cylindrical body, and a grain-flipping spiral body that is inserted concentrically through the grain-floating spiral body. A sorting net body is erected in a vertically elongated outer shell, and its upper end is pivoted to a common upper pivot shaft, and the base of the grain frying spiral is passed through the base plate in the outer shell and extended upward. A bottomed cylindrical grain guide cylinder is connected to one protruding output shaft and connected to another output shaft that rotates relative to the first output shaft, and is erected facing the hem of the sorting net. A grain guiding blade for guiding unsorted grains is wound around the outer periphery of the grain guiding cylinder, and a grain guiding port is provided at the base for introducing the guided grains into the base of the grain frying spiral. At the same time, an annular partition plate is provided in the upper opening horizontally facing outward, and a plurality of locking members are fixedly installed on the partition plate, and a top and bottom partition plate is provided at the hem of the sorting net. A movable sorting net drive ring is mounted around the screen, and the sorting net drive ring has a plurality of engagement notches that engage with the locking members provided on the partition disk of the grain guiding cylinder. The present invention relates to a vertical grain sorting machine characterized by being equipped with a.

"Operation" When the vertical grain sorter is started, the grain lifting spiral and the sorting net rotate in opposite directions. The unsorted grains supplied to the grain guiding cylinder each week are pushed down by the grain guiding blades provided on the outer periphery of the grain guiding cylinder, are directed downward, are introduced through the grain guiding port, and are fried. The grains are fed into the base of the grain spiral, are flung outward while being fried by the spiral blades of the grain-lifting spiral, and are subjected to a sorting action by the sorting net. Under this condition, vertical grain sorters usually provide the best sorting efficiency.

However, if the obtained grain exceeds the desired grade, the operation is temporarily stopped, the sorting net drive ring, which is attached to the hem of the sorting net, is loosened and moved upward, and the grain is removed. The guide cylinder is disengaged from the locking member provided on the partition disk.

When the operation is restarted, the sorting net also begins to slowly rotate freely in the same direction due to the tangential force of the grains thrown out by the grain lifting spiral. The selection rate is considerably lower than in the normal case where the grains rotate in opposite directions, and the grains obtained are of the desired grade.

By adding a rotation control means that gently compresses a part of the outer periphery of the sorting net from outside the shell and controlling its rotation speed, the obtained grain can be as close to the desired grade as possible. is also possible.

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

The vertical grain sorter 10 includes a storage tank 13 for temporarily storing refined grains at the front head of an outer shell 12 vertically installed on a base 11, and a storage tank 13 for temporarily storing fine grains below the tank 13 for discharging small grains. A feed hopper 14 for receiving unsorted grain is provided on the rear side, and a residual grain discharge pipe 16 is provided below it.

On the other hand, inside, there are spiral blades 3 on the outer periphery of the cylindrical body 31.
2, and a large number of small holes 4 concentric with and surrounding the outside of the grain lifting spiral 30.
1 is housed therein.

Upper end plate 33 of grain frying spiral body 30 and sorting net body 40
The upper support arm 42 is a common upper pivot shaft 2.
2 is pivotally supported on the ceiling plate 17.

A storage tank 1 is provided inside and above the outer shell 12, surrounding the outer periphery of the sorting net 40 and between the inner periphery of the outer shell 12.
An upper partition plate 23 is provided which is inclined toward 3.

On the other hand, a base plate 18 that partitions the inside of the outer shell 12 into upper and lower parts.
A motor 19 with a speed reducer is disposed at the lower part thereof, and one output shaft 20 of the motor 19 passes upward through the base plate 18 and is connected to the lower end plate of the grain-lifting helix 30 . A grain receiving cylinder 50 is erected on the upper surface of the base plate 18, and has a cylindrical shape and a tapered part 51 having a truncated conical bottom. Then, the cylindrical peripheral edge elevation 52a
has been achieved. The supply hopper 14 has an opening 14a approximately in the center of the grain receiving cylinder 50.

On the other hand, a grain guiding cylinder 60 having approximately the same diameter is loosely fitted into the hem of the sorting net 40 via a packing 49 and a hem fitting portion 43 of the sorting net 40 .

A partition disk 62 is fixed horizontally slightly below the upper end of the grain guiding cylinder 60, and a plurality of locking members 63 which also serve as small grain scraping blades are arranged radially on the upper surface of the partition disk 62. has been done.

The partition disk 62 has a circular outer periphery, and as shown in FIG. It has a size that completely fills the inner circumference of the peripheral edge elevation 52a.

A second
As shown in FIGS. 3 and 3, an annular sorting net drive ring 45 is mounted around the ring, and a plurality of vertically elongated holes 47 are bored on the circumference. and the hem fitting part 4
It is fixed by the same number of stud bolts 48 and nuts 48a arranged at the same number. Further, from the lower edge end of the sorting net drive ring 45, the partition disk 6
An engagement notch 46 that engages with a locking member 63 provided on 2 is bored.

As shown in FIG. 4, a plurality of grain guiding ports 64 are bored in the lower end of the grain guiding cylinder 60. As shown in FIG. The upper edge line 64a of these grain guide ports 64 is provided far below the lower edge of the opening 14a in the grain receiving cylinder 50 of the supply hopper 14.

Furthermore, the upper edge line 64 of each grain guide port 64
A plurality of grain guiding blades 65 are provided which have starting ends close to a and which face downward during rotation.

The bottom plate 66 of the grain guiding cylinder 60 is connected to the other output shaft 21 which rotates concentrically with the first output shaft 20 of the motor 19 with a speed reducer and in a reciprocal manner.
The rotational force from the output shaft 21 is transmitted from the locking member 63 of the grain guiding cylinder 60 to the sorting net drive ring 45 fitted to the bottom fitting portion 43 of the sorting net 40. The information is transmitted to the sorting network 40.

On the other hand, a rotation control means 70 for controlling the free rotation of the sorting net 40 is provided on the front surface of the outer shell 12. The rotation control means 70 has a shaft portion 71 screwed into the outer shell body 12 so as to be able to move forward and backward, and a brush member 72 that loosely strokes the surface of the sorting net body 40 to control its free rotation is provided at the tip end. .

In addition, in the case where the screen has a clogging prevention plate that comes into sliding contact with the surface of the sorting net 40 to prevent clogging, the clogging prevention plate can also be used as the rotation control means.

Next, the effect will be explained.

When the vertical grain sorter 10 is started by supplying unsorted grains to the supply hopper 14, the grain guiding cylinder 60 rotates slowly together with the sorting net 40, and the grain guiding blades 65 move toward the supply hopper 14. The grains fed from the opening 14a in the grain receiving cylinder 50 are pushed downward. The grains are pushed into the grain guiding cylinder 60 from the grain guiding port 64 along the tapered portion 51 of the grain receiving cylinder 50 .

Inside the grain guiding cylinder 60, the grain lifting spiral 30 rotates at high speed in the opposite direction to scrape up the grains, which are then sorted by the small holes 41 of the sorting net 40. That is, the small grains that have passed through the small holes 41 fall through the space between the outer periphery of the sorting net 40 and the inner wall of the outer shell 12 and pass through the partition disk 62 provided on the outer periphery of the grain guiding cylinder 60. will attempt to deposit on the surface of the However, since the partition disk 62 is rotating together with the sorting net 40, the small grains are thrown out,
Moreover, since the locking member 63 also serves as a small grain scraping blade, the small grains are scraped out and discharged from the small grain discharge pipe 15 to the outside.

On the other hand, good grains that cannot pass through the small holes 41 of the sorting net 40 are fried upwards, although some of them repeatedly fall, fall onto the slanted upper partition plate 23, and slide down the slope. Eventually, it will be accumulated in the storage tank 13.

However, the refined grains do not always have the desired grade, and in particular often have a grade higher than the desired grade.

In the above case, once the vertical grain sorter 1
0, loosen the nut 48a to move the sorting net drive ring 45 upward, disengage it from the locking member 63 on the partition disk 62, and tighten the nut 48a to fix it so that it does not move downward. do. When the operation is restarted, the sorting net 40 rotates slowly in response to the tangential force of the grains to be fried, and the rotation direction is the same as that of the grain fried helix 30, so that the sorting rate is considerably reduced. Then, by operating the rotation control means 70,
The sorting net 40 is rotated in the most appropriate manner.

"Effect of the invention" According to the vertical grain sorting machine according to the invention, a grain guiding cylinder is provided which engages with the hem of the spiral net and rotates together, and the engaging part can be easily engaged and disengaged. Since this system is equipped with a means for easily controlling the rotation of the sorting net, which freely rotates in the same direction as the grain lifting spiral due to the tangential force of the grains to be fried, from the outside of the outer shell, the grain can be of a desired grade or higher. It is possible to appropriately limit the selection rate of a vertical grain sorter, which is easy to use, and is economical because it does not discharge an unnecessarily large amount of small grains.
It can be easily adjusted to the desired grade.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the present invention, in which Figure 1 is a longitudinal sectional view of a vertical grain sorter, and Figure 2 is a cross-sectional view of the base of the sorting net and the grain guiding cylinder. FIG. 3 is a perspective view showing the engaged state, FIG. 3 is a perspective view showing the disengaged state, and FIG. 4 is a vertical sectional view of the vicinity of the grain receiving tube of the vertical grain sorter. 10... Vertical grain sorter, 12... Outer shell, 1
8... Base plate, 20... One output shaft, 21... Other output shaft, 22... Upper pivot shaft, 30... Grain frying spiral body, 31... Cylindrical body, 32... Spiral blade, 40
...Sorting net body, 43...Female fitting portion, 45...Selection net drive ring, 46...Engagement notch, 60...Grain guiding cylinder, 62...Partition disk, 63... Locking member, 64... Grain guiding port, 65... Grain guiding vane, 70... Rotation control means.

Claims (1)

[Claims for Utility Model Registration] A grain-raising spiral body in which a spiral blade is wound around the outer periphery of a cylindrical body, and a sorting net body in which the grain-raising spiral body is inserted concentrically are installed in a vertically long outer shell, and the upper end a common upper pivot shaft, and a base of the grain lifting spiral body is coupled to an output shaft that protrudes upwardly through a base plate in the outer shell, and A bottomed cylindrical grain guiding cylinder connected to another rotating output shaft is erected facing the hem of the sorting net, and unsorted grains are placed on the outer periphery of the grain guiding cylinder. A grain guiding blade is wound around the grain guiding blade, and a grain guiding opening is provided at the base to introduce the guided grain to the base of the grain frying spiral, while the upper opening is provided with a horizontal circular ring shape facing outward. A partition disk is provided, a plurality of locking members are fixed on the partition disk, and a sorting net drive ring that is movable up and down is attached to the hem of the sorting net, and the sorting A vertical grain sorting machine characterized in that a mesh drive ring is provided with a plurality of engagement notches that engage with the engagement members provided on the partition disk of the grain guiding cylinder.