JPH01266885A - Grain sorting equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention comprises a rotary sorting tube in the form of a flat plate that rotates about a horizontal axis, and a large number of sorting holes integrally formed within the rotary sorting tube. This relates to a grain sorting device that sorts mixed grains such as paddy and brown rice using an inner rotating sorting tube.

[Prior art]

There is a grain sorting machine that sorts a mixed rice of paddy and brown rice by rotating a rotary sorting tube, which has a large number of holes on its inner circumferential surface, around a horizontal axis. In this rotary sorting tube, the pot holes become clogged with dust, reducing the sorting efficiency, so various cleaning devices have been proposed to remove the dust inside the pot holes.

[Problem that the invention seeks to solve]

The present invention is a flat rotary sorting tube with no pot holes and a small-diameter inner rotary sorting tube with a large number of sorting holes integrally formed inside the rotary sorting tube.
To provide a grain sorting device which sorts mixed grains of brown rice and does not reduce sorting efficiency.

[Means to solve the problem]

The technical means of the present invention for solving such technical problems are as follows.

The invention described in item 1 integrally constitutes an inner rotary sorting tube 11 in which a large number of sorting holes 13 a + 13 a + . One end side of the rotary sorting tube 13 and the inner rotary sorting tube 13 is used as a sorting start end side where grains to be sorted are supplied, and the other end side is used as a sorting end side. The present invention is characterized in that a grain receiving trough 17 is installed to receive the grains pumped up by the rotary sorting tube 11 which rotates around a horizontal axis. The inner rotary sorting cylinder 13, which has a large number of sorting holes 13a H13a +... inside, is integrally constructed,
One end of the rotary sorting tube 11 and the inner rotary sorting tube 13 is a sorting start end where grains to be sorted are supplied, and the other end is a sorting end. A grain receiving trough 17 is constructed to receive the grains pumped up, and the sorting end side part of the inner rotary sorting cylinder 13 is made to protrude longer than the sorting end side end part of the outer rotary sorting cylinder 11. The third aspect of the invention is that a large number of sorting holes of different sizes are formed in a rotary sorting cylinder 11 that rotates about a horizontal axis, and a plurality of large size holes of different diameters are formed. The inner rotary sorting tubes 25 and 26 are integrally formed, and one end side of the rotary sorting tube 11 and the inner rotary sorting tubes 25 and 26 are connected to the sorting starting end side where grains to be sorted are supplied. The grain sorting device is characterized in that the grains guided to the other end of the grain sorting end can be taken out separately.

[Function and effect of the invention]

The invention of item 1 provides a rotary sorting tube 11 for sorting grains to be sorted.
Since the inner rotary sorting tube 13 does not have a pot hole into which grains fit, unlike the rotary sorting tube of the conventional device, grains or dust etc. do not enter the rotary sorting tube 11 and the inner rotary sorting tube 13. There is less clogging compared to conventional devices, and it is possible to maintain sorting efficiency and sorting accuracy over a long period of time.

In addition, in the invention of item 2, the rotary sorting tube 11 and the inner rotary sorting tube 13 for sorting the grains to be sorted do not have a pot hole into which the grains fit, unlike the rotary sorting tube of the conventional device. Therefore, the clogging of the rotating sorting tube 11 and the inner rotating sorting tube 13 with grains or dust is reduced compared to conventional devices, and sorting efficiency and sorting accuracy can be maintained over a long period of time. The sorting end side of the inner rotary sorting tube 13 provided in the sorting tube 11 is configured to protrude toward the sorting end side and shift in the longitudinal direction from the sorting end side of the outer rotary sorting tube 11, so that the rotary sorting tube 11 And when taking out the sorted grains from the sorting end side of the inner rotary sorting cylinder 13, preventing the two sorted grains from mixing,
This makes it possible to improve sorting accuracy.

In addition, the invention in item 3 provides a rotary sorting tube 11 for sorting grains to be sorted. The small-diameter inner rotary sorting tube 26 and the large-diameter inner rotary sorting tube 25 do not have pot holes into which grains fit, unlike the rotary sorting tubes of conventional devices, so the rotary sorting tube 11.
The small-diameter inner rotary sorting tube 26 and the large-diameter inner rotary sorting tube 25 are less likely to be clogged with grains or dust than conventional devices, and can maintain sorting efficiency and sorting accuracy over a long period of time. Also, brown rice after sorting is taken out from the sorting end side of the rotary sorting cylinder 11, and a mixed rice of -part brown rice and part of unhulled rice is taken out from the sorting end side of the large diameter inner rotary sorting cylinder 25. In addition, large-diameter unhulled rice that does not leak through the sorting holes of the small-diameter inner rotary sorting tube 26 is taken out from the sorting end side of the small-diameter inner rotary sorting tube 26, and different types of sorted grains are separated. Since it is taken out, the sorting accuracy can be improved.

〔Example〕

A first embodiment of the invention shown in FIGS. 1 and 2 will be described below.

First, the structure of the embodiment will be described. Reference numeral 1 denotes a shedding section, and this shedding section 1 is connected to a paddy hopper 2. A pair of depu rolls 3
．． It is made up of 3rd grade. Reference numeral 4 denotes a sloughed rice wind sorting path, in which the sloughed rice from the husking section 1 is sorted by the sorting air generated by the suction fan 5 in front, and the rice husks are passed from the suction fan 5 to the dust exhaust pipe 6 and then taken out of the machine. The mixed rice of brown rice and paddy falls into the sliding rice receiving trough 7 below, and the mixed rice that has fallen into the sliding rice receiving trough 7 is transferred to the scraping section of the sorting case 10 by the mixed rice lifting machine 8. 1
It is configured to be conveyed to a mixed rice hopper 9 located at the side end.

Reference numeral 10 denotes a sorting case, and inside this sorting case 10 there is a rotary sorting tube 11 whose inner circumferential surface is flat and has small holes through which bran can leak (without forming small holes, there is no hole). ) can rotate around the horizontal axis, the supply side end (right side in Figure 1) and the discharge side end (left side in Figure 1).
It is rotatably supported by drive rollers 12°12. Inside this rotary sorting cylinder 11, there is a mesh or perforated plate-like body, and there is a large number of sorted grains in which brown rice, which is a small grain among the grains to be sorted, leaks out, but unhulled rice, which is a large grain, does not leak out. Hole 13
Inner rotary sorting tube 1 composed of a, 13a, . . .
3 are arranged so as to rotate concentrically and integrally.

Inside this inner rotary sorting cylinder 13, a grain receiving trough 14 is arranged to receive the grains pumped up by the inner rotating sorting cylinder 13, and at the bottom of this grain receiving 14, a conveying helix 15 is supported. Both ends of the grain receiving trough 14 and the conveying spiral 15 are supported by a sorting case 1o. This grain receiving trough 14
The lower part of the mixed rice hopper 9 is connected to the end on the side of the scraping section 1, which is the start end of the conveyance, and the end of the conveyance of the grain receiver 4i114 is connected to the start end of the sorting of the inner rotary sorting cylinder 13. A supply port 14a for supplying sorted grains is configured, and one end side of the rotary sorting tube 11 and the inner rotary sorting tube 13 far from the shedding section 1 is set as a sorting starting end side to which grains to be sorted are supplied. ,
The other end side closer to the scraping section 1 is the sorting end side. The sorting end side portion of the inner rotary sorting tube 13 is configured to be longer than the sorting end side end portion of the outer rotary sorting tube 11 and protrudes forward. The grain receiving side of the grain receiving trough 14 can be freely adjusted in the direction of the arrow in FIG. The pumped-up grain receiver is configured to allow adjustment of the amount.

The brown rice flowing inside the rotary sorting cylinder 11 from the sorting start end side to the sorting end side passes through the lower brown rice flow passage 16 to the brown rice receiving trough 17.
The brown rice is transported to one side of the machine by the brown rice transport helix 18, and taken out of the machine by the brown rice lifting machine 19. In addition, the mixed rice of paddy and brown rice in the inner rotary sorting cylinder 13 is subjected to a sorting action while flowing from the sorting start end to the sorting end, and the unsorted rice that has reached the sorting end is transferred to the lower paddy rice receiving trough 20. The brown rice is guided to the sloping bottom of the paddy rice receiving trough 20, flows down to one side of the machine, and is sent to the hulling section by the paddy rice lifting machine 21.
The ridge receiving box 623 which is returned to the reduced paddy hopper 22 is a ridge receiving box provided below the rotary sorting cylinder 11. The bran leaking from the small holes of the rotary sorting tube 11 is collected.

Although not shown in the drawings, the shaft end of the conveying helix 15 on the shedding section 1 side extends from the sorting case 10 toward the shedding section 1 side.
Further, the drive roller shafts 24, 24 to which the drive rollers 12, 12 are attached are supported by the sorting case 10, and their ends on the shedding section 1 side extend toward the shedding section 1 side, Power is transmitted through a power take-off shaft (not shown) extending from the first transmission case (not shown) to the sorting case 10 side.

Although not shown in the drawings, the degree of inclination in the longitudinal direction of the rotary sorting tube 11 may be adjusted manually, or the rotary sorting tube 11 may be
The flow state of the grains to be sorted in step 1 can be detected by a detector and adjusted automatically, or the rotation speed of the rotary sorting tube 11 can be manually increased or decreased, or the rotation speed of the rotary sorting tube 11 can be adjusted automatically. If the flow state of the grains to be sorted is detected by a detector and the flow state of the grains can be automatically adjusted to increase or decrease, the flow state of the grains can be adjusted.

It is advantageous to be able to adjust the leakage state of grains from the inner rotary sorting cylinder 13 according to the moisture content, grain size, etc. of the grains to be sorted.

Further, between the inner circumferential surface of the rotary sorting tube 11 and the outer circumferential surface of the inner rotary sorting tube 13, it is rotatably supported in a cantilevered manner on the side wall of the sorting case 10 on the removing section 1 side, and By providing a brush roll (not shown) or a brush helix that comes into contact with the surface-rotating sorting tube 11.13, clogging can be cleaned and sorting work can be continued for a long time.

Next, the operation of the embodiment will be described. When carrying out hulling work, unhulled rice is supplied to the hulling hopper 2, and each rotating part of the hulling machine is driven. Then, the paddy supplied from the paddy hopper 2 to the shredding rolls 3, 3 of the shredding section 1 is subjected to the action of shedding, the fallen rice is sorted by the lower slipping rice wind sorting path 4, and the rice husks are removed to dust. The cylinder 6 is discharged outside the machine. The mixed rice of brown rice and paddy falls into the sliding rice receiving trough 7, is supplied to the mixed rice hopper 9 by the mixed rice grain lifting machine 8, and then flows into the grain receiving trough 14 from the mixed rice hopper 9, The grains are transported by the transport helix 15 inside the grain receiving trough 14 to the terminal end side, and are supplied from the supply port 1-48 to the sorting start end side of the inner rotary sorting i13.

Next, the mixed rice is sorted by the inner rotary sorting tube 13 and the rotary sorting tube 11, which are rotating clockwise in FIG. Due to the force in the pumping direction and the centrifugal force, small grains of brown rice are sorted through the sorting holes 13a, 13a of the inner rotating sorting cylinder 13,
. . . The rice grains leak into the rotary sorting cylinder 11 on the outer circumferential side, and the mixed rice of paddy and some brown rice is pumped up and falls into the grain receiving trough 14. The mixed rice that has fallen into the grain receiving trough 14 is transported. Note that the material is sent to the conveyance # end side by the spiral 15, and again supplied to the sorting start end side of the inner rotary sorting tube 13 to be re-sorted.

In addition, the brown rice that has leaked from the inner rotary sorting tube 13 to the rotary sorting tube 11 moves to the sorting end side while flowing inside the rotary sorting tube 11, and during this time, the rice bran, dust, etc. are removed from the small holes of the rotary sorting tube 11. The brown rice falls into the lower bran receiving box 23 and is collected, and reaches the sorting end side while flowing in the rotary sorting tube 11. The brown rice flows down to the brown rice receiving gutter 17 via the lower brown rice flow path 16. The brown rice is conveyed to one side of the machine by a conveying helix 18, and taken out of the machine by a brown rice lifting machine 19. Further, while being subjected to the sorting action while flowing inside the inner rotary sorting cylinder 13 from the sorting start end to the sorting end, the sorted paddy rice that has reached the sorting end side flows down into the paddy rice receiving trough 20 below, and then the paddy rice is The paddy is guided to the sloping bottom of the receiving trough 20 and flows down to one side of the machine body, and is returned to the return hopper 22 of the threshing section 1 in the paddy rice lifting machine 21. It is subject to the action of

The hulling and sorting work is carried out as described above, but the rotating sorting tube 11 and the inner rotating sorting tube 13, which sort the grains to be sorted, do not have grains inserted into them like the rotary sorting tube of the conventional device. Since the pot hole is not configured, the rotary sorting cylinder 11
The inner rotary sorting tube 13 is less likely to be clogged with grains or dust, and sorting efficiency and sorting accuracy can be maintained over a long period of time.

In addition, an inner rotary sorting tube 1 provided in the rotary sorting tube 11
The sorting end side of No. 3 is configured to protrude toward the sorting end side and shift in the longitudinal direction from the sorting end side of the outer rotary sorting tube 11 and inner rotary sorting tube 1.
When taking out the grains after sorting from the sorting end side of No. 3, it is possible to prevent the grains after both kinds of sorting from being mixed, thereby improving the sorting accuracy.

Next, the differences between the second embodiment shown in FIGS. 3 and 4 and the first embodiment will be explained.

Inside the sorting case 10, there is a rotary sorting tube 11 whose inner circumferential surface is flat and has small holes through which bran can leak (a type without holes may also be used). The supply side end (right side in FIG. 3) and the discharge side end (left side in FIG. 3) are rotatably supported by drive rollers 12, 12 so as to be rotatable around an axis. Inside this rotary sorting tube 11, there is a large-diameter inner rotary sorting tube made up of a mesh or perforated plate-like body, which has a large number of small sorting holes through which small grains of brown rice leak from inside the grains to be sorted. The tube 25 and a small diameter inner rotary sorting tube 26, which has a large number of medium sorting holes through which the mixed rice of brown rice and some unhulled rice leaks out of the grains to be sorted, are arranged concentrically and integrated. It is configured to rotate. A supply gutter 27 which is open at the top is disposed inside the small-diameter inner rotary sorting cylinder 26, and a conveyance helix 28 is supported at the bottom of the supply gutter 27. Both ends are supported by a sorting case 1o.

The lower part of the mixed rice hopper 9 is communicated with the end of the feed gutter 27 on the scraping section 1 side, which is the conveyance start end side.
A supply port 27a for supplying grains to be sorted to the sorting start end side of the small-diameter inner rotary sorting tube 26 is configured at the conveyance terminal end of the rotary sorting flill, and the large-diameter inner rotary sorting tube 2.
5 and one end of the small-diameter inner rotary sorting cylinder 26 far from the shedding section 1 is set as the sorting start end side where grains to be sorted are supplied, and the shedding section 1
The other end side closer to is the sorting end side. The sorting end side of the large diameter inner rotary sorting cylinder 25 is configured to be longer than the sorting end side of the outer rotary sorting cylinder 11, and the sorting end side of the small diameter inner rotary sorting cylinder 26 is configured to be longer than the sorting end side of the outer rotary sorting cylinder 11. It is longer than the sorting terminal side end of the large-diameter inner rotary sorting tube 25 and is configured to protrude toward the scraping section 1 side.

The paddy supplied to the sorting start end side of the small-diameter inner rotary sorting tube 26
The mixed brown rice leaks through the sorting holes of the small-diameter inner rotating sorting tube 26 and the sorting holes of the large-diameter inner rotating sorting tube 25 due to the force in the pumping direction due to rotation and the centrifugal force. The brown rice reaches the brown rice receiving trough 17 through the rotation of the rotary sorting cylinder 11, moves sequentially to the end side from the sorting end via the lower brown rice flow path 16, and is conveyed to one side of the machine by the brown rice conveying helix 18. The brown rice is then taken out of the machine by a brown rice lifting machine 19. In addition, some of the brown rice and some unhulled rice that leaked from the sorting hole of the small-diameter inner rotary sorting tube 26 into the outer large-diameter inner rotary sorting tube 25 are removed by the rotation of the large-diameter inner rotary sorting tube 25. The rice is sequentially sent to the terminal side and passes through the mixed rice flow downstream passage 29 from the sorting terminal section downward, and the amount of rice that falls off is fJl!
7, where it joins with the scraped rice from the husking section 1 and is re-sorted. In addition, the unhulled rice that does not leak from the sorting hole of the small-diameter inner rotary sorting tube 26 is subjected to sorting action while flowing inside the small-diameter inner rotary sorting tube 26 from the sorting start end side to the sorting end side, and after the sorting reaches the sorting end side. The unhulled rice is stored in the lower unhulled rice receiving trough 20.
The unhulled rice is guided through the slanted bottom opening of the unhulled rice receiving trough 20 and flows down to one side of the machine, where it is returned to the unhulled unhulled hopper 22 of the threshing section 1 by the unhulled rice lifting machine 21. It is something. Also, 23.

This rice bran receiving box 2 is installed below the rotary sorting tube 11.
3 is detachably attached to the sorting case 10, and this bran receiving box 23 collects the bran leaking from the small hole of the rotary sorting tube 11.

Next, to explain the operation of the second embodiment, the mixed rice of paddy and brown rice supplied to the sorting start end side of the small-diameter inner rotary sorting tube 26 is pumped in one rotation, and is subjected to a force in the direction of rotation and a centrifugal force. The small-diameter brown rice leaks through the medium sorting hole of the small-diameter inner rotary sorting tube 26 and the small sorting hole of the large-diameter inner rotary sorting tube 25, flows into the single-rotation sorting tube 11, and then flows into the rotary sorting tube 11. Due to the rotation, it flows sequentially to the terminal side, and the rotary sorting cylinder 11
The brown rice flows from the sorting terminal end to the brown rice receiving trough 17 via the lower brown rice flow path 16, and is taken out of the machine by the brown rice lifting machine 19. In addition, some of the brown rice and some of the unhulled rice that leaked from the medium sorting hole of the small-diameter inner rotary sorting tube 26 into the outer large-diameter inner rotary sorting tube 25 are transferred to the large-diameter inner rotary sorting tube 25. As the rice rotates, the rice is sent to the terminal end side, and from the sorting terminal section, it passes through the downward mixed rice flow passage 29 to the dropped rice receiving trough 7.
The rice flows down, joins with the fallen rice from the shedding section 1, and is re-sorted in the one-rotation sorting cylinder 11. In addition, large-diameter unhulled rice that does not leak through the sorting hole of the small-diameter inner rotary sorting tube 26 is subjected to sorting action while flowing inside the rotating small-diameter inner rotary sorting tube 26 from the sorting start end side to the sorting end side. The unsorted rice that has reached the sorting end side of the inner rotary sorting cylinder 26 flows down into the lower unhulled rice receiving trough 20 and is sent to the unhulled rice lifting machine 21 in the husking section 1.
+2 is returned to the reduced paddy hopper 22. Also,
The bran and dust leaking from the small sorting hole of the rotating sorting cylinder 11 are collected into the bran receiver 23 located below.

The grains to be sorted are sorted as described above, and the rotary sorting tube 11. The small-diameter inner rotary sorting tube 26 and the large-diameter inner rotary sorting tube 25 do not have pot holes into which grains fit, unlike the rotary sorting tubes of conventional devices.
Rotary sorting cylinder 11. The small-diameter inner rotary sorting tube 26 and the large-diameter inner rotary sorting tube 25 are less likely to be clogged with grains or dust than conventional devices, and can maintain sorting efficiency and sorting accuracy over a long period of time. Yes, also
Brown rice after sorting is taken out from the sorting end side of the rotary sorting cylinder J1, and a mixed rice of some brown rice and some unhulled rice is taken out from the sorting end side of the large diameter inner rotary sorting cylinder 25. In addition, large-diameter unhulled rice that does not leak from the sorting hole of the small-diameter inner rotary sorting tube 26 is selected from the small-diameter inner rotary sorting tube 260 selection 53.
Since the grains are taken out from one end, separate grains can be taken out, and the accuracy of the sorting can be improved.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a cutaway side view showing the first embodiment, FIG. 2 is a cutaway back view showing the first embodiment, and FIG. 3 is a cutaway side view showing the first embodiment. FIG. 4 is a cut side view showing the second embodiment. FIG. 4 is a cut side view showing the second embodiment. Explanation of symbols 1 Dehulling section 2 Paddy tank 3 Dehulling roll 4 Slipping rice wind selection path 5 Suction fan
6 Dust exhaust pipe 7 Dropped rice catcher 8 Mixed rice lifting machine 9 Mixed rice hopper 10 Sorting case 11 Rotary sorting @
12 Drive roller 13 Inner rotating sorting cylinder 1
3a Sorting hole 14 Grain receiving trough 14a Supply port 15 Conveying helix 16 Brown rice flow path 17
Brown rice receiving trough 18 Brown rice conveying spiral 19 Brown rice grain lifting machine 20 Paddy rice receiving trough 21 Paddy rice lifting machine
22 Reduction rice hopper 23 Rice bran receiving box 24
Drive roller shaft 25 Large diameter inner rotating sorting tube 26 Small diameter inner rotating sorting tube

Claims (1)

[Claims] [1] A sorting hole 1 is provided in a rotary sorting cylinder 11 that rotates around a horizontal axis.
3a, 13a, . . . are integrally constituted, and one end side of the rotary sorting tube 13 and the inner rotary sorting tube 13 is used for sorting to which grains to be sorted are supplied. A grain receiving trough 17 is constructed in the inner rotary sorting tube 13 to receive the grains pumped up by the inner rotary sorting tube 13. Sorting device. [2] A sorting hole 1 is formed in the rotary sorting tube 11 that rotates around the horizontal axis.
3a, 13a, . . . are integrally constituted, and one end side of the rotary sorting cylinder 11 and the inner rotary sorting cylinder 13 is used for sorting to which grains to be sorted are supplied. The starting end is the sorting end, and the other end is the sorting end. A grain receiving trough 17 for receiving the grains pumped up by the inner rotating sorting tube 13 is installed inside the inner rotating sorting tube 13.
A grain sorting device characterized in that a sorting terminal end side portion of the grain sorting device is made to protrude longer than a sorting terminal side end portion of an outer rotary sorting cylinder 11. [3] A rotary sorting tube 11 that rotates about a horizontal axis is configured with a large number of sorting holes of different sizes, and a plurality of large-diameter and small-diameter inner rotary sorting tubes 25 and 26 with different diameters are integrally constructed. , this rotary sorting tube 11 and the large-diameter/small-diameter inner rotary sorting tube 2
One end side of 5 and 26 is a sorting start side where grains to be sorted are supplied, and the grains guided to the other end side of these, which is the sorting end side, can be taken out separately. Grain sorting equipment.