JPH01180286A - Grain screening device - Google Patents

Abstract

PURPOSE:To improve grain screening efficiency by providing many rotary screening bodies each provided with many pockets which are opened toward a lateral side and allow fitting of grains therein in the scooping up side part in the rotary screening cylinder in such a manner that said screening bodies can rotate freely around the horizontal axis. CONSTITUTION:This rice hulling machine is provided with the rotary screening cylinder 11 having many pot holes and a finish rice trough 16. The many rotary screen bodies 26 each of which is opened in the lateral direction and has the many pockets to allow the fitting of the grains therein are provided freely rotatably around the horizontal axis 23 to the scooping up side part which rotates from below to above in the cylinder 11. The grains which are to be screened and are supplied into the cylinder 11 of such constitution fit into the pot holes. The hulled rice having a short grain size is scooped up high and falls into the upper finish rice trough 16 and is screened to the unhulled rice and the hulled rice. The unhulled rice of a long grain size is scooped up low and is dropped and screened into the cylinder 11. The grains to be screened fit simultaneously into the pockets in the part of the screening bodies 26. The hulled rice is scooped up high and the unhulled rice is scooped up low and is dropped and screened into the cylinder 11 similarly in the case of the pot holes. The screening changes are thus increased and the screening efficiency is improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is implemented in a hulling machine that sorts mixed rice of paddy and brown rice using a rotating sorting tube that has a large number of pot holes on its inner circumferential surface. can do.

[Prior Art] There is a grain sorting device that sorts a mixed rice of paddy and brown rice by rotating a rotary sorting cylinder, which has a large number of pot holes on its inner peripheral surface, around a horizontal axis. This finishing rice gutter is installed inside this rotating sorting cylinder.

The brown rice with short grain length that has been inserted into the pot hole is pumped up high and falls into the finishing rice gutter above and is sorted, and the long grained rice is pumped up low and falls into the rotating sorting cylinder and is sorted into paddy rice and brown rice. It is something that is selected.

[Problems to be Solved by the Invention] However, in the rotary sorting tube of the prior art, the pot hole that performs the sorting function is formed only on the inner peripheral surface of the rotary sorting tube, so the single sorting efficiency is limited. There was a problem that

Therefore, this invention provides a rotary sorting body that has a number of pockets on its side surfaces into which grains can be inserted.

The purpose is to improve the sorting efficiency by specially arranging it in the space inside the rotary sorting cylinder.

[Means to solve the problem]

The technical means of the present invention for solving such technical problems is to provide finished rice @ 16 for receiving brown rice in a rotary sorting cylinder 11 which has a large number of pot holes in its inner peripheral surface and rotates around a horizontal axis. , pockets 27, 27., 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27 3, 27, 27 3 3, 27, 27, 27, 27, 27 , 27 , which were opened laterally in the pumping side portion Which rotates from the bottom to the top in the rotary sorting cylinder 11. A rotary sorting body 26 is provided at the white line to rotate many times around the horizontal axis, and the flowing grains to be sorted are collected in the pockets 27, 27° of the rotary sorting body 26.
The structure of the grain sorting device is characterized in that the rice is pumped up to the finishing rice gutter 16 above.

[Function and effect of the invention]

The grains to be sorted supplied to the rotary sorting cylinder 11 fit into the pot holes, and brown rice with short grain length is pumped up high and falls into the finishing rice gutter 16 above to be sorted, and unhulled rice with long grain length is drawn up low. It is pumped up and dropped into the rotary sorting cylinder 11 to be sorted to produce unhulled rice.
Pocket 27 is arranged in the pumping side portion of the single-rotation sorting tube 11 that rotates from the bottom to the top while being sorted into brown rice, and is open laterally and into which grains can be inserted.
There are rotary sorting bodies 26, 26, 27, . In the ... part, pocket 2
7.27. ..., the grains to be sorted get stuck in the grains, and brown rice with a short grain length is pumped up high and falls to the finishing rice 4!16 above to be sorted, and unhulled rice with long grain length is pumped up low and rotated. The rice is dropped into the sorting tube 11 and sorted into paddy rice and brown rice in the same way, and the sorting efficiency can be improved by effectively utilizing the space inside the rotating sorting tube 11. Further, the rotary sorting bodies 26 and 2 disposed in the fluidized bed portion of the grains to be sorted in the one-rotation sorting cylinder 11
6, . . . provide resistance to the grains to be sorted flowing from the supply side to the discharge side of the rotary sorting tube 11, and the holes in the rotary sorting tube 11 and the rotary sorting bodies 26, 26, . ...'s pocket 27.27
．． ... increases the chances of sorting, reduces the outflow of brown rice mixed with unhulled rice from the discharge side of the rotary sorting tube 11, and improves the sorting accuracy.

〔Example〕

An embodiment of the invention shown in one drawing 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 tank 2. A pair of depu rolls 3
, 3 etc. 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 passed through the mixed rice hopper 9 by the mixed rice lifting machine 8.

The mixed rice is configured to be conveyed to the starting end of the supply gutter 14 which also serves as a receiving gutter.

Reference numeral 10 denotes a sorting case, and inside the sorting case 10 there is a supply side end (as shown in FIG. The right side) and the discharge side end (left side in FIG. 3) are rotatably supported by drive rollers 12.12. Inside this rotary sorting cylinder 11, a supply gutter 14 with a supply helix 13 and finished rice @16 with a finished rice helix 15 are suspended horizontally.

In arranging the supply gutter 14 and the finished rice gutter 16 inside the rotary sorting cylinder 11, as shown in FIG. The finished rice gutter 16 is disposed on the side of the rotary sorting tube 11 that rotates from above to below, and the mixed rice scooped up by the pot hole of the rotary sorting tube 11 falls into the feed gutter 148 and is transferred to the feeder by the feed helix 13. The supply gutter 14 also functions as a mixed rice receiving gutter.

The discharge side end of the finished rice @ 16 is communicated with the finished rice receiving trough 19 via the lower finished rice flow tube 17 and the finished rice flow grain plate 18, and the finished rice flows through the lower finished rice flow tube 17 and the finished rice flow grain. The brown rice that is screened while falling from the plate 18 to the finished rice volume @19 and flows down to the finished rice receiving trough 19 is taken out of the machine via the finished rice lifting machine 20.

A pumping cylinder 21 is connected to the discharge side end of the rotary sorting cylinder 11. Reference numeral 22 denotes a paddy reducing machine, and the upper end of the paddy reducing machine 22 extends to a position below the pumping of the pumping cylinder 21 on the rotary sorting cylinder 11 side, and removes the paddy that has been pumped upward by the pumping cylinder 21. , has a function of returning to the de-peeling section 1.

The lower part of the front end of the sorting case 10, that is, the lower part on the side of the shedding part 1,
It is pivotally supported by a horizontal shaft 23, and supports the rear part of the sorting case 1o and the rotary sorting cylinder 11 so as to be rotatable in the vertical direction.
Reference numeral 24 denotes an inclination adjusting means for adjusting the inclination of the sorting case 10.

The pumping side portion of the rotary sorting tube 11 that rotates from the bottom to the top includes disk-shaped rotary sorting bodies 26, 26.
... are fixed in large numbers.

The rotary sorting bodies 26, 26. Pockets 27, 27, into which the grains to be sorted can fit are provided on the side surfaces of...
・It is composed of a large number of single-rotation sorting bodies 26°26,...
- rotates in the same direction as the rotary sorting tube 11, and the pocket 27
, 27. ... to pump up the grains to be sorted.

The shaft end portions of the drive roller shafts 28, 28, the shaft end portion 15a of the finished rice helix 15, the shaft end portion 13a of the supply helix 13, and the shaft end portion of the rotating horizontal shaft 25 are each viewed from the sorting case 10 in the section 1.
Pulleys 29. extending laterally and attached to these shaft ends.
29. ..., the power is transmitted from the power take-off shaft (not shown) on the scraping section 1 side to the shaft end 15a of the finishing helix 15, and the drive roller shafts 28, 28, .
The supply helix 13 is configured to rotate. Note that 31.31 is a pressing pulley that presses the transmission belt 30 against the pulley 29 attached to the horizontal rotating shaft 25.

In addition, 32 is a finished rice control valve, and this finished rice control valve 32
is rotatably supported on the pumping side end of the finishing rice gutter 16, and when the area of the receiver is expanded to the maximum, it can be brought close to the rotary sorting body 26.

Next, the embodiment shown in FIGS. 5 to 7 will be described. Reference numeral 33 denotes a pressing plate provided vertically and vertically movably between the single-rotation sorting bodies 26.26, and on the lower surface of this pressing plate 33, which presses the grains, there are pockets 27, 2 of the left and right rotary sorting bodies 26.26.
7. . . . constitutes inclined pressing surfaces 33a, 33a that act in the direction in which the grains are inserted, and the edges of the inclined pressing surfaces 33a, 33a of this pressing plate 33 are rotated by rotating sorting bodies 26, 26.
It does not come into contact with the brown rice that has been fitted into the pockets 27, 27, etc. of the rotary sorting body 26, 26 and is protruding low, but it does come into contact with the protrusion of the unhulled rice that is protruding high, It has the function of dropping unhulled rice.

This pressing plate 33 is rotated by the rotating sorting bodies 26, 26. . . , it may be attached to the lower part of the supply gutter 14 so as to move up and down integrally, and each press plate 33, 33 . The press plates 33, 33 .・・・
・ is physically attached to the horizontal axis (not shown), and the suppression plate 33
The amount of grains to be sorted in the evening rotation sorting tube 11 may be detected, and the amount of grains to be sorted may be displayed or the supply of the amount of grains to be sorted may be controlled.

Next, the operation of the embodiment will be explained. When carrying out the hulling operation, the rice grains are supplied to the rice tank 2, and each rotating part of the hulling machine is driven. Then, the paddy supplied from the paddy tank 2 to the phusher section 1 is subjected to the dehulling action, the scraped rice is sorted in the lower scraped rice wind sorting path 4, and the rice husks are discharged from the dust exhaust pipe 6 to the outside of the machine. Ru.

The mixed rice of brown rice and paddy falls into the sliding rice receiving trough 7, and is lifted up and supplied to the starting end side of the supply trough 14 on the rotary sorting cylinder 11 side via the mixed rice hopper 9 in the mixed rice lifting machine 8. The feed helix 13 in the feed gutter 14 supplies the feed to the feed side end of the rotary sorting tube 11 .

Next, the mixed rice is pumped up through the pot hole of the rotary sorting cylinder 11 which is rotating clockwise in FIG. teeth,
The unsorted mixed rice that has fallen into the supply @ 14 and been sorted, and which has fallen into the feeder 14, is fed again into the rotary sorting cylinder 11 from the conveyance end of the supply gutter 14 by the supply helix 13, and is re-sorted.

In addition, the finished rice that has fallen into the finished rice @ 16 is conveyed to the finishing rice flow lower tube 17 by the finishing rice helix 15, and is transferred to the finishing rice flow grain plate 18.
The rice falls into the finished rice receiving trough 19, where it is sorted by a sorting wind and taken out of the machine by the finished rice lifting machine 20.

The sorted paddy sent to the discharge side end of the rotary sorting cylinder 11 is
The paddy enters the pumping cylinder 21, is pumped up by the pumping cylinder 21, falls to the upper paddy reduction value 22, is returned to the shedding section 1, and is again subjected to the action of shedding at the arm pouch section 1.

The hulling and sorting work is carried out as described above, and the grains to be sorted that flow from the supply side to the discharge side while being subjected to the sorting action in the pot hole of the rotating sorting tube 11 are separated from each other in the rotating sorting tube 11. It is arranged on the pumping side part that rotates from the bottom to the top, and has pockets 27, 27, ... that are open toward the i side and into which grains can be inserted, and that rotates around the horizontal axis. The rotating sorting bodies 26, 26. ...'s pocket 2
7, 27°, etc. Brown rice with short grain length is pumped up high and dropped to the finishing rice machine 16 above for sorting, while unhulled rice with long grain length is pumped up low and sent to the supply gutter 14 or The rice is dropped into the rotary sorting tube 11 and sorted into paddy rice and brown rice in the same way as the pot holes in the rotary sorting tube 11, and the sorting efficiency is improved while making effective use of the space in the rotary sorting tube 11. In addition, the rotary sorting bodies 26, 26, . By providing resistance to the flowing grains to be sorted, the holes in the rotary sorting cylinder 11 and the rotary sorting bodies 26, 26. Pockets 27, 27. ... increases the chances of sorting, reduces the outflow of brown rice mixed with unhulled rice from the discharge side of the rotary sorting tube 11, and improves the sorting accuracy.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, and FIG. 1 is a cutaway rear view, FIG. 2 is a cutaway side view, FIG. 3 is a cutaway side view, and FIG. 4 is a cutaway rear view. . 5 to 7 show other embodiments, in which FIG. 5 is a cutaway rear view, FIG. 6 is a cutaway side view, and FIG. 7 is a cross-sectional view. Explanation of symbols 1 Dehulling section 2 Paddy tank 3 Dehulling roll 4 Slipping rice wind selection path 5 Suction fan 6 Dust exhaust tube

Claims (1)

[Scope of Claims] [1] Finished rice trough 16 for receiving brown rice in a rotary sorting cylinder 11 which has a large number of pot holes in its inner peripheral surface and rotates around a horizontal axis.
A rotary sorting body 26 is provided with pockets 27, 27, . are provided to be freely rotatable around the horizontal axis, and the flowing grains to be sorted are transferred to the pockets 27, 27, 27 of the rotary sorting body 26.
A grain sorting device characterized by pumping up rice into an upper finishing gutter 16.