JPH064156B2 - Vertical grain sorter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention sorts grains such as rice and wheat into a large-sized grain size and a small-sized waste grain while feeding them upward in a sorting cylinder in which they are erected. The present invention relates to a vertical grain sorter.

(Prior Art) As a vertical grain sorter in the prior art, there is, for example, the one described in Japanese Patent Application Laid-Open No. 59-49875, which was filed by the applicant of the present invention and has already been published.

The vertical grain sorter has a structure in which the entire cross section is as shown in FIG. That is, a rotatable cylindrically-shaped sorting cylinder (7) and a spiral conveyer (fitted in and concentric with the sorting cylinder (7) so as to be rotatable in the opposite direction to the sorting cylinder (7). 8) and 8) are both built in the cylindrical grain body (10).

The inside of the tubular grain body (10) is divided into a lower supply area (11), an intermediate selection area (12), and an upper extraction area (13), and is divided into a supply area (11) and a selection area (12). Is separated by the lower partition plate (14), and the sorting area (12) and the take-out area (13) are partitioned by the upper partition plate (15), respectively. It is designed so as to block mixing in the group, and selection of large-sized sized particles mixed in the group of waste particles.

A cylindrical grain receiving cylinder (17) is installed just above the center of the base (16). A supply port (18) is opened near the back surface of the inner surface of the grain receiving cylinder (17), and the cylindrical grain (10) is provided in the supply port (18).
The lower end of the chute of the input hopper (19) provided on the back side of the is connected.

The sorting cylinder (7) is a cylinder rotatably supported at a position directly above the granulation cylinder (17) in an upright state, and has a supply area (1
The bottomless introduction cylinder part (2) facing 1), the take-out part (6) with a lid facing the take-out area (13) and the discharge part (5) opened on the peripheral wall, and the selection area (12). It has a form in which it is integrally connected with a selection cylinder portion (4) having an innumerable selection hole (3).

The spiral transfer body (8) is changed from the granulation cylinder (17) to the selection cylinder (7).
The cylindrical body (20) is adapted to be vertically fitted and rotated so as to vertically pass through the introducing cylinder part (1), the selecting cylinder part (4), and the extracting cylinder part (6). A continuous spiral wing (21) is attached to the outer circumference of the bulge without interruption.

(22) is a motor, which is a belt (23) and a belt wheel (24),
(25) Selection cylinder (7) via an appropriate transmission means such as a gear box (26)
A rotational drive force is applied to the spiral carrier (8). The spiral conveyor (8) is rotated at a constant high speed in the range of 200 to 400 rpm, and the sorting cylinder (7) is rotated at a constant low speed in the range of 50 to 100 rpm.

The purpose of rotating the sorting cylinder (7) is to select the sorting cylinder (4).
This is because the fixed clogging prevention plate (27) is brought into sliding contact with the grain to scrape off the grains that are clogged in the selection hole (17). Therefore, the clogging prevention plate (27)
There is also a case where the sorting cylinder (7) is fixed by rotating.

When a rotational force is applied to the spiral carrier (8) and the sorting cylinder (7), the grains to be sorted which are fed from the feeding hopper (19) and received from the supply port (18) to the grain receiving cylinder (17) are First, while being scooped up at the lower end of the spiral blade (21) of the spiral carrier (8), the spiral blade (21) receives the grain lifting action, and the introduction cylinder (1) from the introduction cylinder (7) of the selection cylinder (7) After passing through the position of (2), the granulation is carried out to the position of the sorting cylinder part (4). Since the grain is subjected to centrifugal action at the same time as the grain lifting action, it is pushed to the inner peripheral wall of the sorting section (4), but innumerable sorting holes (3) are bored in this inner circumferential wall. From the grain group, the waste particles having a diameter smaller than the diameter of the selection hole (3) pass through the selection hole (3) and are sieved to the selection area (12), and then on the outer periphery of the introduction cylinder (3). The lower scraping blade (28) provided provides a waste particle discharge chute (2
It is led to 9) and discharged to the outside of the cylindrical grain (10). In this way, the waste particles are sieved out at the position of the selection cylinder part (4), and the remaining large-sized particles are taken out from the extraction cylinder part (6).
Is transported to the position of, and then discharged from the discharge part (5) to the discharge area (13), and then to the discharge port (31) by the upper scraping blade (30) provided on the outer circumference of the discharge cylinder part (6). Is discharged to the storage tank (32).

(Problems to be Solved by the Invention) In the conventional technique as described above, in a normal working state, the grain supplied from the supply port (18) into the grain receiving cylinder (17) is a spiral blade ( 21) It can be scooped up one by one and smoothly fried, but when a large amount of grain is supplied, the grain stagnates in the vicinity of the feed port (18) of the grain receiving cylinder (17) and smooth fried grain is obtained. In some cases, grain action cannot be performed.

Upon investigating the cause, a large amount of grains supplied from the supply port (18) and the rotating spiral blade (21) start end part collide with the grain in the middle of scooping and interfere with each other near the supply port (18). It turned out that the frying performance deteriorated due to mutual conflict.

The present invention seeks to solve such problems.

(Means for Solving the Problem) Therefore, the present invention is configured as follows.

That is, the sorting cylinder (7) is erected on the upper part of the grain receiving cylinder (17) to be erected, and penetrates through the grain receiving cylinder (17) and the sorting cylinder (7) and spirals around the outer periphery of the cylindrical body (20). A spiral carrier (8) in which a blade (21) is spirally wound is erected, and a grain receiving cylinder (1
In a vertical grain sorter that feeds grains fed from a feed port (18) opened on the side wall of 7) on a spiral blade (21) by rotation of a spiral carrier (8) and feeds them, On the inner peripheral surface of (17), an annular groove (40) wider than the grain diameter of the grain or a spiral groove inclined in the direction opposite to the winding direction of the spiral blade (21) was formed.

(Operation and Effect of the Invention) Grains supplied from the supply port (18) into the grain receiving cylinder (17) are sequentially scooped from the start end of the spiral blade (21) by the rotation of the spiral transport body (8). The grain is fried in the grain receiving cylinder (17) and the sorting cylinder (7) while drawing a spiral movement trajectory in the direction opposite to the winding direction of the spiral wing (21). Annular groove (40) or spiral blade (21) wider than diameter
By the guiding action of the spiral groove tilted in the direction opposite to the winding direction, the grains in the fried food are promptly guided to the outside of the supply port (18) and the fried performance is improved.

Therefore, the grains in the fried grain are less likely to be brought into the vicinity of the supply port (18) again, and in order to prevent the collision with the supply grain, the performance of the fried grain as well as the swallowing from the supply port (18) is improved. Performance is also improved.

(Embodiment) An embodiment of the present invention will be described with reference to FIG. 1 showing a portion different from the conventional structure.

The grain receiving cylinder (17) is made of a casting such as aluminum or iron or made of die casting, and has a supply port (1) communicating with the input hopper (19) on the peripheral wall.
8) is opened, and horizontal annular grooves (40) are formed at regular intervals on the inner peripheral surface. The width of the annular groove (40) is wider than the maximum diameter of the grain, and the depth is such that one grain enters.

The sorting cylinder (7) includes an introducing cylinder part (2) for inheriting and introducing grains from the grain receiving cylinder (17), a selecting cylinder part (4) having a large number of sorting holes (3), and a sorting cylinder. Extraction cylinder part (6) for taking out particles
And are integrally connected.

The introduction tube portion (2) is formed by winding a plate body formed in a concavo-convex shape into a cylindrical shape to open the top and bottom, and a lower eaves (41) for attaching the lower scraping blade (28) is fixed to the outer peripheral surface. The lower opening side of the introduction tube portion (2) serves as the grain introduction portion (1).

The selection cylinder part (4) is formed by winding a plate body formed in a convex shape into a cylindrical shape similarly to the introduction cylinder part (2), and a large number of selection holes (3) are formed in the convex part. ing.

The take-out cylinder part (6) is formed by winding a plate body having an uneven shape like the introduction cylinder part (2) into a cylindrical shape, and fixing a lid body (43) having a bearing (42) on the upper part thereof, and surrounding the peripheral wall. The discharge port (5) is bored and the upper eaves (44) to which the upper scraping blade (30) is attached is fixed.

The annular groove (9) formed on the inner peripheral surfaces of the introducing cylinder portion (2), the selecting cylinder portion (4), and the extracting cylinder portion (6) includes the grain receiving cylinder (1).
It is formed in a groove similar to the annular groove (40) of 7).

In addition, when fixing the selection cylinder (7), the extraction cylinder (6)
Open with the lid open, and the upper opening (extraction part)
The grains may be released from the.

The spiral carrier (8) is formed by continuously adhering spiral blades (21) made of plates around the cylindrical body (20) from bottom to top without interruption. A tongue piece (45) that slidably contacts the (16) is attached, and the upper end is connected to a discharge plate (46) fixed to the cylindrical body (20) in parallel with the axial direction.

In this embodiment, a horizontal annular groove is formed on the inner peripheral surface of the grain receiving cylinder (17).
Although the (40) is provided, it may be formed in a spiral groove having an inclination opposite to the winding direction of the spiral blade (21) of the spiral carrier (8).

[Brief description of drawings]

FIG. 1 is a partial front sectional view showing an embodiment of the present invention, and FIG. 2 is an entire front sectional view showing a conventional structure. (8) ... Spiral carrier, (17) ... Granule (18) ... Supply port, (20) ... Cylindrical body (21) ... Spiral blade, (40) ... Annular groove

Claims (1)

[Claims] 1. A sorting cylinder (7) is erected on an upper part of a grain receiving cylinder (17) to be erected, and a cylindrical body (20) is penetrated through the grain receiving cylinder (17) and the sorting cylinder (7). A spiral carrier (8) having a spiral blade (21) spirally wound is provided upright on the outer circumference, and
In a vertical grain sorter, in which grains supplied from a supply port (18) opened on the side wall of (7) are placed on a spiral blade (21) by a rotation of a spiral carrier (8) and are fed, (17)
A vertical grain sorter in which an annular groove (40) wider than the grain size of the grain or a spiral groove inclined in a direction opposite to the winding direction of the spiral blade (21) is formed on the inner peripheral surface of the.