JPH09220529A - Gravel-removing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sort grain in suitable situation for the quality and the property of the grain and miniaturize a gravel-removing apparatus by installing sorting porous plates in a manner that the front and rear inclining angle of the plates can be adjusted freely in the apparatus which separates gravel toward a higher side and grain toward a lower side when grain is supplied while the sorting porous plates being swung. SOLUTION: When gravel is removed from polished rice for example, swinging type sorting plates are inclined sharply since polished rice has higher friction than unpolished rice and are affected more by swinging up reaction of the swinging type sorting plates, and on the other hand when gravel is removed from unpolished rice, the plates are inclined moderately. That is, a main sorting porous plate 7, a transversely transporting porous plate, a turning back porous plate, and an auxiliary sorting porous plate are journalled to an axis 37 in their rear parts in a main blower case 1 and an auxiliary blower case and their front parts are selectively connected with a plurality of up and down adjusting holes 38 formed in the main blower 1. Consequently, the inclination of the sorting porous plates can be adjusted by inserting a connection rod inserted into a lower frame 39 into either one of the up and down adjusting holes 38.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stone removing device.

[0002]

2. Description of the Prior Art In the publicly known Japanese Patent Publication No. 7-34897, as shown in FIG. 1, a main blower case a, a main wind turbine b axially mounted in the main blower case a, and the main wind turbine b are shown. A main motor c for rotating the fan, a main selection perforated plate d provided on the upper surface of the blower case a, a sub-blower case i provided on a side portion of the main blower case a, and a sub-blower case i. Sub wind turbine e, a motor f for the sub wind turbine e, a horizontal feed perforated plate g that laterally feeds grains and the like provided on the front side of the main selection perforated plate d, and a side portion of the main selection perforated plate d. The sub-selection perforated plates h arranged in parallel with each other are described.

[0003]

In the known stone removing device described above, for example, in the case of removing stone chips from white rice and in the case of removing stone chips from unpolished rice, the tilt angle before and after the perforated sieve plate is changed. Good, but the device is not provided. Therefore, the user inserts an object under the table and tilts the table together. Further, in the known example, the main wind turbine b and the sub wind turbine e have different axes and are rotated by different motors cf.
The structure was complicated and expensive. Further, since the horizontal perforated plate g is directly supplied to the sub-selected perforated plate h, the sub-selected perforated plate h has to be slightly projected to the front side, and the apparatus becomes large in size.

[0004]

Therefore, according to the present invention, a sorting perforated plate having a high front side, a low rear side, and a horizontal left and right side, a blower case having a windmill provided below the perforated sorting plate, and the above-mentioned sorting porous plate are provided. It consists of a plate swinging device, and when grains are supplied while swinging the perforated sorting plate, stones are separated into higher ones and lower grains are separated. It is a stone removing device attached to. Further, in the stone removing device, the sorting perforated plate is configured such that a front portion is moved up and down with a rear portion as a center for adjustment. Further, the front side is high, the back side is low, and the left and right sides are horizontal quadrangular shapes, and the main sorting perforated plate 7 is provided with the main grain extraction port 26 on the back side, and the grain containing stone chips provided on the front side of the main sorting perforated plate 7. And a return perforated plate 18 for returning grains such as grains from the traverse perforated plate 17, which are provided on the side of the main selection perforated plate 7, to the rear side. Sub-selection perforated plate 2 provided with stone removal port 24 on the front side and sub-grain removal port 25 on the rear side for re-sorting returned grains etc.
1, a main blower case 1 having a main wind turbine 2 provided below the main sorting perforated plate 7 and the transverse perforated plate 17, a sub-perforation provided below the return perforated plate 18 and the sub-selected perforated plate 21. A sub-blower case 11 having a wind turbine 12, and the main sorting perforated plate 7, the lateral feeding perforated plate 17, the return perforated plate 18, and the sub-perforated perforated plate 21 are provided in the main blower case 1 and the sub-blower case 11. On the other hand, it is a stone removing device that is mounted so that the front and rear tilt angles can be adjusted.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 is a wide main blower case, and 2 is a main wind turbine mounted inside the main blower case 1. The main blower case 1 is formed by a main arc body 4 centered on the left-right axis 3 of the main wind turbine 2 and a main blow-up chamber 5 continuous with the upper part of the main arc body 4 and extending only in the front-rear direction. The upper edge of the main blow-up chamber 5 is formed with a main blow-out port 6 that opens over substantially the entire surface. The main outlet 6 is inclined at a high level on the front side and a low level on the rear side. A main selection perforated plate 7 is provided on the upper surface of the main outlet 6 along with the main outlet 6. As shown in FIG. 4, the eyes 8 of the main perforated porous plate 7 are formed with a large number of inclined projections 9 on the surface, the projections 9 being higher on the front side. Reference numeral 10 denotes a side wall surrounding the main perforated porous plate 7. Then, a sub-blower case 11 having a narrow width is provided on a side portion of the main blower case 1, and the left-right shaft 3 is extended and axially mounted in the sub-blower case 11, and the sub-blower case 11 The auxiliary wind turbine 12 is fixed to the. In FIG. 6, reference numeral 13 denotes a sub-arc body portion centering on the left-right axis 3 at the bottom of the sub-blower case 11, and 14 denotes a sub-blowing chamber which is connected to the upper portion of the sub-arc body portion 13 and expands only in the front-rear direction. The main wind turbine 2 is formed of an ordinary plate fan or a sirocco fan, but the sub wind turbine 12
Is a windmill in which several blades 16 are attached to one side of the disk 15.

The main sorting perforated plate 7 has a substantially rectangular shape as shown in FIG. 3, and a traverse perforated plate 17 for laterally feeding grains and the like is provided on the right side in front of the main sorting perforated plate 7. The transverse perforated plate 17
Since it only transports grains etc. to the right side, the width of the front and back is narrow and the wind blows to the right. A return perforated plate 18 is provided at an end point of the horizontal perforated plate 17. The return perforated plate 18 is to be returned to the rear side of about 1/2 to 1/3 position, has a narrow width, and is juxtaposed on the side of the main selection perforated plate 7 after the return perforated plate 18. The side is a blind plate 19. Reference numeral 20 is a first communication port formed at the end of the transverse perforated plate 17 and reaching the return perforated plate 18. The return perforated plate 18 and the blind plate 19 are formed to have the same lateral width, and a sub-selection perforated plate 21 is formed on the side thereof. The length of the sub-selection porous plate 21 is the same as the length of the main selection porous plate 7 to which the transverse feed porous plate 17 is added, and the sub-selection porous plate 21 and the return porous plate 18 are the rear part of the return porous plate 18. Second communication port 22
Are connected by In FIG. 6, 23 is a sub-outlet at the upper edge of the sub-blowing chamber, 24 is a stone removing port on the front side of the sub-sorting porous plate 21 (a valve may be attached to the stone removing port 24), and 25 is the above-mentioned. The sub-grain outlet on the rear side of the sub-sorting porous plate 21 and the main grain outlet on the rear side of the main sorting porous plate 7 are placed on the upper side of the main outlet 6 and the sub- outlet 23. Then, the main perforated plate 7 and the transverse perforated plate 17 are placed on the main outlet 6, and the return perforated plate 18 and the sub-perforated plate 21 are placed on top of the sub outlet 23. .

27 is an eccentric wheel, 28 is a rod, and 29 is a rod.
Is a motor, 30 is a main suction port opened on one side of the main blower case 1, 31 is a sub suction port opened on one side of the sub blower case 11, and a suction air adjusting plate 32 is attached to the sub suction port 31.
Is adjustable. 33 is a long hole, 34 is an adjustment bolt. Then, when removing stones with the stone removing device of the present application,
It is better to make the front and rear inclination of the selection plate adjustable, for example, when removing stone from white rice, the inclination is steep, and when removing stone from brown rice, the inclination is gentle. That is, the main blower case 1 and the sub-blower case 11 have the upper end fixed to the outer fixed case 3
The main selection perforated plate 7, the transverse perforation plate 17, the return perforation plate 18, and the sub-selection perforation plate 21 are suspended by four left and right inclined plate springs 36 fixed to the main blower case. 1 and the sub-blower case 11, the rear part thereof is axially fixed by a shaft 37, and the front part thereof is selectively engaged with a plurality of vertical adjustment holes 38 provided in the main blower case 1. 39 is the main sorting perforated plate 7, the traverse perforated plate 17, the return perforated plate 18 and the sub-selected perforated plate 2.
It is a lower frame provided on the lower surface side of 1. By inserting the engaging rod passed through the lower frame 39 into any of the plurality of vertical adjusting holes 38, the inclination of the perforated sorting plate can be adjusted.

[0008]

Next, the operation will be described. When the motor 29 is energized and the left-right shaft 3 is rotated, the main wind turbine 2 and the sub wind turbine 12 rotate together, the main wind turbine 2 blows air to the main sorting perforated plate 7 and the horizontal perforation plate 17, and the sub wind turbine 12 returns. The air is blown to the perforated plate 18 and the sub-selected perforated plate 21. Further, all the perforated plates are swung through the eccentric wheel 27 and the rod 28. When air is blown to the perforated main plate 7, as shown in FIG. 4, the grain a is light and therefore floats up as a whole, and the debris b is heavy and therefore does not float up. Inclined projection 9 of perforated plate 7
Since it does not come into contact with, it is distributed without moving to the front or the rear while floating, and the stone b is moved forward by the inclined projection 9.

However, when the grain a is newly supplied from above, the grain a is metabolically moved by the supplied amount and the grain a is discharged from the main grain outlet 26, and the grain a including the stone b is laterally transported. It reaches on the perforated plate 17. The transverse perforated plate 17 is blown to the right because it is blown to the right and is laterally fed by the wind to reach the return perforated plate 18 from the first communication port 20, and the return perforated plate 18 is returned because the wind is blowing backward, Sub-selection perforated plate 2 from second communication port 22
1 to be re-sorted.

In the meantime, when removing stones with a stone removing device, it is better to make the front and rear inclination of the sorting plate adjustable. For example, when stones are removed from white rice, white rice has a stronger friction than brown rice. And, since the polished rice is strongly affected by the rocking selection plate, the slope should be steeper than when selecting brown rice, and the slope should be gentle when removing stones from brown rice. That is, the main blower case 1 and the sub blower case 11 are suspended by the left and right four inclined leaf springs 36 whose upper ends are fixed to the outer fixed case 35. The perforated plate 17, the return perforated plate 18, and the sub-selected perforated plate 21 are rearwardly fixed to the main blower case 1 and the sub blower case 11 by a shaft 37, and the front portion thereof is the main blower case 1. Since it is selectively engaged with the plurality of vertical adjustment holes 38 provided in the above, the selection perforated plate can be obtained by inserting the engaging rod passed through the lower frame 39 into any of the plurality of vertical adjustment holes 38. Adjust the tilt of.

Further, since the main wind turbine 2 and the sub wind turbine 12 rotate coaxially, the structure is simple. However, if the wind of the sub wind turbine 12 is weak, grains are discharged from the stone removing port 24 and the wind of the sub wind turbine 12 is strong. And the debris from the stone removal outlet 24 becomes worse, but this plan is
Since the size of the auxiliary suction port 31 is adjusted by loosening the adjusting bolt 34 and moving the suction air adjusting plate 32, it is possible to select in the optimum state. Once adjusted, there is almost no need to readjust.

[0012]

EFFECTS OF THE INVENTION The above-described known destoning device, for example, removes debris from white rice and debris from brown rice.
Although it is better to change the tilt angle before and after the perforated plate,
The device is not provided. Therefore, the user inserts an object under the table and tilts the table together. Further, in the known example, the main wind turbine b and the sub wind turbine e have different shafts and are rotated by different motors cf, so that the structure is complicated and expensive. In addition, the sub-selection perforated plate h directly from the transverse perforated plate g
However, since the sub-selection porous plate h has to be slightly projected to the front side, the device becomes large. However, the present invention, the front side is high and the rear side is low and the left and right sides are horizontal selection perforated plates, a blower case having a windmill provided below the selection perforated plates, and a swinging device for the selection perforated plates, When the grain is fed while swinging the perforated sieve plate, stone debris is separated into the higher one and the grain is separated into the lower one. The perforated sieve plate is a stone removing device attached so that the front and rear tilt angles can be adjusted. Therefore, there is an effect that sorting can be performed in a state according to the quality and properties of the grain. Further, in the stone removing device, since the sorting perforated plate is configured such that the front portion is moved up and down with the rear portion as the center, the adjustment is easy. Further, the front side is high, the back side is low, and the left and right sides are horizontal quadrangular shapes and the main sorting perforated plate 7 is provided with the main grain extraction port 26 on the back side, and the grain including stone chips provided on the front side of the main sorting perforated plate 7. And a return perforated plate 18 for returning grains such as grains from the traverse perforated plate 17 provided side by side of the main sorting perforated plate 7 to the rear. Sub-selection perforated plate 21 having stone removal port 24 on the front side and sub-grain extraction port 25 on the rear side for re-sorting the returned grains and the like attached to the side of 18, and the main selection perforated plate 7 and the horizontal A main blower case 1 having a main wind turbine 2 provided below the perforated plate 17 and a sub wind turbine 1 provided below the return perforated plate 18 and the sub-sorted perforated plate 21.
2 is composed of a sub-blower case 11 having the main blower perforated plate 7, the transverse perforated plate 17 and the return perforated plate 18.
Since the sub-selection porous plate 21 is a stone removing device that is attached to the main blower case 1 and the sub-blower case 11 so that the front and rear tilt angles can be adjusted, the main selection perforated plate can achieve the above effects. Since the return perforated plate 18 for returning grains and the like to the rear side is provided on the side of 7, the device can be miniaturized.

[Brief description of drawings]

FIG. 1 is a plan view of a known example.

FIG. 2 is a longitudinal sectional view of the present invention.

FIG. 3 is a plan view of the present invention.

FIG. 4 is a cross-sectional view of the perforated plate according to the present invention.

FIG. 5 is a cross-sectional plan view of the present invention.

FIG. 6 is a sectional view taken along line AA.

FIG. 7 is a side view of a sub blower case.

[Explanation of symbols]

1 ... Main blower case, 2 ... Main wind turbine, 3 ... Horizontal axis, 4
... Main arc body, 5 ... Main blowing chamber, 6 ... Main outlet, 7 ... Main perforated plate, 8 ... Eyes, 9 ... Slanted projections, 10 ... Sidewalls, 11 ...
Sub blower case, 12 ... Sub wind turbine, 13 ... Sub arc body, 1
4 ... Sub-flush chamber, 15 ... Disk, 16 ... Wing, 17 ... Transverse perforated plate, 18 ... Return perforated plate, 19 ... Blind plate, 20 ... First communication port, 21 ... Sub-selection perforated plate, 22 ... Second Connection port, 23 ... Secondary outlet, 24 ... Stone removal port, 25 ... Secondary grain removal port, 26 ...
Main grain extraction port, 27 ... Eccentric wheel, 28 ... Rod, 29 ... Motor, 30 ... Main suction port, 31 ... Secondary suction port, 32 ... Suction air adjusting plate, 33 ... Long hole, 34 ... Adjusting bolt, 35 ... Outside Fixed case, 36 ... Leaf spring, 37 ... Shaft, 38 ... Vertical adjustment hole, 39 ... Bottom frame.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Motoyuki Suzuki, 404, Oonomori, Tendo City, Yamagata Prefecture, Yamamoto Works, Ltd. (72) Toshiaki Kobayashi, 404, Oonomori, Tendo City, Yamagata Prefecture

Claims (3)

[Claims] 1. The front side is high and the rear side is low, and the left and right sides are horizontal and have a horizontal perforated screen, a blower case having a wind turbine provided below the perforated screen, and a swinging device for the perforated screen. A stone removing device in which stones are separated into higher stones and grains are separated into lower stones when rocks are fed while swinging the sieves. 2. The destoning device according to claim 1, wherein the sorting perforated plate is adjusted by vertically moving a front part around a rear part. 3. A main sorting perforated plate 7 having a front side is high and a back side is low, and the left and right sides are horizontal quadrangular and provided with a main grain extraction port 26 on the back side, and debris provided on the front side of the main selection perforated plate 7. And a return perforated plate 18 for returning grains such as grains from the traverse perforated plate 17 provided side by side to the main sorting perforated plate 7 to the rear. Sub-selection perforated plate 2 provided with stone removal port 24 on the front side and sub-grain removal port 25 on the rear side for re-selection of returned grains etc.
1, a main blower case 1 having a main wind turbine 2 provided below the main sorting perforated plate 7 and the transverse perforated plate 17, a sub-perforation provided below the return perforated plate 18 and the sub-selected perforated plate 21. A sub-blower case 11 having a wind turbine 12, and the main sorting perforated plate 7, the lateral feeding perforated plate 17, the return perforated plate 18, and the sub-perforated perforated plate 21 are provided in the main blower case 1 and the sub-blower case 11. On the other hand, a stone removing device attached so that the front and rear tilt angle can be adjusted.