JPH0418711Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a hulling sorting machine which, after removing the paddy using a removing mechanism, sorts and takes out brown rice from the scraped rice after the removal. The invention relates to a rotary sorting mechanism.

[Conventional technology]

In recent years, a rotary sorting machine has been developed in which a brown rice catcher is installed inside a horizontal rotating sorting barrel with many recesses formed on the inner circumference, as a sorting machine for sorting and extracting brown rice from the rice that has been removed. It was done.

This rotary sorting machine is based on the prior art, for example,
As shown in Publication No. 38040, the tip side and the lower surface portion of the rear end side of the edge member of the horizontal rotating sorting cylinder are supported by a pair of left and right rotating rollers provided in a box-like case to rotate. and inside the rotary sorting cylinder,
We supply surorachi rice (mixture of paddy and brown rice) after shedding,
As the fallen rice moves to the discharge side of the rotary sorting cylinder while forming a fluidized bed that repeats the flow of being scraped up to a certain height and then falling to the bottom, the brown rice that has fallen into the recesses is scraped up to a high position. Utilizing the phenomenon that the paddy can only be raised to a lower height than the brown rice, the brown rice that has been raised to a higher position and then falls is received by the brown rice receiving trough and taken out of the machine. It is something to take out.

[Problem that the invention attempts to solve]

As in the prior art, in a device that sorts brown rice by scraping up brown rice that fits into a recess formed on the inner peripheral surface of a rotary sorting cylinder, the sorting capacity, that is, the amount of brown rice that can be sorted within a unit time, is increased. In order to achieve this, it is necessary to increase the number of recesses in the rotary sorting cylinder.

However, the dimensions of each recess are limited by the dimensions of the brown rice, and there is a limit to the number of recesses that can be formed per unit area of the inner peripheral surface of the rotary sorting cylinder, that is, there is a limit to increasing the density. In order to increase the number of filters, it is necessary to increase the diameter or the axial length of the rotary sorting cylinder.

As described above, there is a problem in that increasing the diameter and/or length of the rotary sorting cylinder increases the size and bulk of the entire hulling sorter.

The present invention aims to improve the sorting ability without increasing the size of the rotary sorting cylinder.

[Means for solving problems]

Therefore, in the present invention, a horizontally oriented rotary sorting cylinder with a large number of recesses formed in its inner circumferential surface is driven to rotate, and a brown rice catcher is disposed inside the rotary sorting cylinder along its axial direction. In the sorting machine, a circular ring is fixed in the rotary sorting cylinder so as to protrude inward in a direction intersecting the axial direction thereof, and a recess into which brown rice can fit is formed on the surface of the circular ring. A large number of them are formed.

[Functions and effects of the idea]

According to the present invention, an inwardly directed circular ring is fixed to the inner diameter part of the rotary sorting cylinder in which a large number of recesses are formed so as to intersect the axis of the rotary sorting cylinder, and the surface of the circular ring is Since a large number of recesses are formed in the rotary sorting cylinder, as the rotary sorting cylinder rotates, the scraped rice is fitted into the recesses on the inner peripheral surface of the rotary sorting cylinder and is scraped up. The brown rice falls from a high position into the brown rice receiving trough, while only the brown rice is caught in the recesses formed on the surface of the torus and is raked up. Brown rice falls into the brown rice catcher and can be sorted.

In this way, the rotary sorting mechanism of the present invention has fewer recesses in which brown rice can fit, compared to conventional rotary sorting cylinders in which recesses are formed only on the inner circumferential surface of the rotary sorting cylinder. This means that the number has increased by the number of recesses formed.

In other words, the number of recesses in the rotary sorting mechanism as a whole can be increased simply by adding a circular ring with recesses without increasing the diameter or length of the rotary sorting cylinder, which is different from the conventional method. Although the size of the rice hulling sorting machine is the same as that of the present invention, it has the remarkable effect that the sorting capacity can be increased approximately in proportion to the number of circular bodies with recesses.

〔Example〕

Below, an embodiment of the present invention will be described with reference to the drawings.
The entire structure includes a hulling mechanism 2 placed on the upper left side of the wind sorting device 1, and a rotary sorting mechanism 3 placed on the upper right side of the wind sorting device 1.

The hulling mechanism 2 is provided with a case 4 with a paddy supply hopper 5, a pair of derolls 6, 7 provided in the case 4, and between the derolls 6, 7 and the paddy supply hopper 5. Manual opening/closing shutter 8
, a paddy supply amount regulating valve 9 , and a lead roll 10 , and the paddy supply amount regulating valve 9 is configured to be rotated by an actuator 11 .

The wind selection device 1 has a suction dust exhaust fan 12 at its left end and an atmospheric air intake port 13 at its right end side.
Each of them is provided with a cross-flow fan 14 approximately in the center, and an air path 1 extends from the atmospheric air intake port 13 to the suction dust exhaust fan 12 via the cross-flow fan 14.
5 and 16 are formed, and in the middle of the air path 16 from the cross-flow fan 14 to the suction and dust removal fan 12, there is a wind screening section 1 for removing scraped rice that falls from the hulling mechanism 2.
7 from the atmospheric air intake 13 to the cross flow fan 14
In each of the air passages 15 leading to the rotary sorting mechanism 3, a wind sorting section 18 for brown rice from the rotary sorting mechanism 3 is provided.

The fallen rice after wind-sorting the paddy grains by the fallen rice sorting section 17 is sent from the fallen rice gutter 19 with a spiral conveyor to the rotary sorting mechanism 3 by a bucket-type conveyor 20. The brown rice that has been finished and sorted in the brown rice sorting section 18 is taken out of the machine by a bucket-type conveyor 22 from a brown rice gutter 21 with a spiral conveyor.

On the other hand, the rotary sorting mechanism 3 has a box-like case 2.
The rotary sorting cylinders 24 are horizontally disposed in two upper and lower stages within the box-shaped case 23, and both rotary sorting cylinders 24 are rotatably supported by a pair of left and right rollers 25, 25 protruding from the inner surface of the box-shaped case 23. , these Koro 25
By rotating the rotary sorting cylinder 24 with a variable rotation speed motor 26, the two rotary sorting cylinders 24 are moved as indicated by the arrow A in FIG.
It is configured to rotate at an appropriate speed in the left direction as shown by .

The double rotary sorting cylinder 24 has a rear end farthest from the hulling mechanism 2 formed on an open supply side 24a, and a tip end close to the hulling mechanism 2 formed on an open discharge side 24b. A large number of recesses 27 are formed on the inner surface of each of the rotary sorting cylinders 24 and are large enough to fit brown rice.

In addition, a plurality of circular rings 52 are fixed inside the rotary sorting cylinders 24 at appropriate intervals along the axial direction so that their outer peripheral end surfaces are in contact with the inner peripheral surface of the rotary sorting cylinders 24. Each circular ring body 52 has a flat plate shape, and the front and back disk surfaces thereof are coated with brown rice 5.
A large number of recesses 53 into which only 4 can fit are formed (see FIGS. 3 and 4).

As shown in FIG. 4, each recess 53 in the circular body 52 has an oval shape that is elongated along the rotation direction (arrow A) of the rotary sorting cylinder 24, and the recess 53 is formed on the front end side in the rotation direction. It has an inclined surface 53a extending outward from the bottom surface.

Furthermore, at a plurality of locations of each toroidal body 52,
A notch 55 is formed that opens to the inner periphery of the rotary sorting cylinder 24, and as the rotary sorting cylinder 24 rotates, the scraped rice passes over the notch 55 and flows from the front side to the back side of the circular body 52. In other words, from the supply side 24a of the rotary sorting cylinder 24 to the discharge side 24
It is configured so that it can be easily transferred in the axial direction toward the direction b.

Furthermore, various types of receiving troughs such as brown rice receiving troughs are arranged in the dual rotary sorting cylinder 24 so as to extend in the axial direction of the sorting cylinder. That is, brown rice receivers 28 each having a spiral conveyor 29 therein are provided in both rotary sorting cylinders 24 so as to be supported by the box-shaped case 23, and the right side of the brown rice receiver 28, that is, the rotary sorting cylinder A mixed rice receiving trough 30 having a spiral conveyor 31 therein is mounted parallel to the brown rice receiving trough 28 at a portion of the mixed rice raking side in the brown rice receiving trough 24.

Incidentally, the spiral conveyors 29, 31 in each of the receiving troughs 28, 30 are also rotationally driven by the motor 26 so as to transfer the grains in the troughs from left to right in FIG.

Then, the brown rice receiving trough 2 in the double rotating sorting cylinder 24
At the upper end of the right side plate 28a of the left and right side plates 28a and 28b at 8, that is, the front side plate 28a located on the side where the mixed rice is scraped up in the rotary sorting cylinder 24, a finish adjustment plate 32 is installed. The finishing adjustment plates 32 are each attached to each other via a shaft 33 so as to be able to swing freely, and each of the finish adjusting plates 32 is configured to be rotated by an actuator 34.
On the other hand, the left rear side plate 28b of both side plates 28a and 28b extends so as to approach the inner circumferential surface of the rotary sorting cylinder 24. At this time, if the upper end of the rear plate 28b is cut out so as not to interfere with the inner circumferential surface of the circular ring body 53, the allowable rotation angle of the rear plate 28b can be increased.

Bucket type conveyor 20 for the fallen rice
A supply passage 35 is provided on the side surface of the conveyor 20 so that the scraped rice lifted by the bucket conveyor 20 flows vertically, and the supply passage 35 has the two rotary sorting cylinders at its midpoint and lower end. while connecting distribution supply chute 36, 37 extending into one end of mixed rice receiving trough 30 in each of 24;
Within this supply passage 35 is a distribution supply chute 36.
By providing a distribution control valve 38 at a portion where the conveyor 20 opens into the supply passage 35, the rice scraped from the bucket-type conveyor 20 is distributed to both mixed rice receiving troughs 30 in approximately equal amounts. A switching valve 39 is provided at the lower end of the supply passage 35 to switch the front part of the fallen rice to be discharged to the outside. Further, at the other ends of both mixed rice receiving troughs 30, mixed rice supply ports 30a into the supply side 24a of the rotary sorting cylinder 24 are provided.

Furthermore, the other end of the brown rice receiving trough 28 in the upper rotary sorting cylinder 24 of both rotary sorting cylinders 24 is passed through the outlet chute 40 to the lower rotary sorting cylinder 24.
4, and one end of the brown rice receiving gutter 28 in the lower rotary sorting cylinder 24 is communicated with the supply gutter 42 to the brown rice sorting section 18 via the outlet chute 41.

Discharge side 24 in the upper rotary sorting cylinder 24
A paddy receiving chute 44 is provided at the lower end of b, while the discharge side 24b of the lower rotary sorting cylinder 24
A raking cylinder 46 having a plurality of blades 45 on the inner surface is joined to the end of the raking cylinder 46, and a paddy receiving chute 47 is arranged in the upper part of the raking cylinder 46. One reflux passage 4
8 and then communicates with the inside of the paddy supply hopper 5 in the hulling mechanism 2.

Further, a sensor plate 49 is rotatably provided in the both rotary sorting cylinders 24 via a shaft 50,
The axis 50 of the sensor plate 49 determines the thickness of the fluidized layer of the fallen rice in the sorting cylinder 24, that is, the rotational sorting cylinder 24, depending on the rotation angle of the sensor plate 49.
An internal amount sensor 51 is connected to detect the amount of rice that has slipped inside.

The paddy supplied to the paddy supply hopper 5 is passed through the hulling mechanism 2
After removing the paddy grains at the sliding rice sorting section 17, the rice enters the sliding rice gutter 19, and from there it is conveyed via a bucket type conveyor 20 to the vertical supply chute 3.
5, and when flowing down the supply chute 35, the distribution valve 38 distributes approximately equal amounts to the supply chute 3.
6 and 37, and is supplied to the supply side 24a from the mixed rice receiving trough 30 in the two rotary sorting cylinders 24.

As the two rotary sorting cylinders 24 rotate, the rice that has fallen inside is repeatedly scraped up to a certain height and then falls to the bottom, forming a certain fluidized bed and being transferred toward the discharge side 24b. During this fluid transfer process, the brown rice in the dropped rice is lifted up to a relatively high position while fitting into the recess 27 on the inner peripheral surface of the rotary sorting cylinder 24 and the recess 53 of the circular ring body 52, and then falls. However, due to the movement of the paddy among the fallen rice falling from a lower height than the brown rice, only the brown rice enters the brown rice receiving trough 28, and the brown rice and some paddy enter the mixed rice receiving trough 30.

The unhulled brown rice in the mixed rice receiving trough 30 is again supplied to the supply side 24a of the rotary sorting cylinder and undergoes re-sorting.

The brown rice that has entered the brown rice receiving channel 28 is sent to the outlet chute 4.
0,41 and the brown rice sorting section 18 through the supply gutter 42.
There, the rice is finished and sorted to remove small grains, and then taken out of the machine by a conveyor 22.

In addition, the rice that has slipped inside the two rotary sorting cylinders 24 is removed from the notch 5 in the circular body 52 in the rotary sorting cylinder 24.
As the brown rice is smoothly transferred to the discharge side 24b at five locations, it is sorted in the brown rice receiving trough 28 and the mixed rice receiving trough 30 as described above.
As the time approaches b, the amount of brown rice decreases and becomes almost only paddy.

The rotary sorting mechanism of the present invention has recesses into which the paddy fits not only on the inner periphery of the rotary sorting barrel but also on the surface of the circular ring that projects radially inward from the inner periphery. The number of recesses can be increased according to the number of circular bodies to be installed without increasing the diameter or length of the rotating sorting barrel, making the huller sorting machine more compact while improving its sorting capacity. This has the effect of increasing the

Note that the circular ring that is installed in the rotary sorting cylinder and rotates integrally with it serves as a kind of dam for the fallen rice that moves in the discharge direction inside the rotary sorting cylinder, so it There is also the effect that the height position of the upper surface of the fallen rice fluidized bed, which becomes lower toward the discharge side, can be divided and raised for each of the circular ring portions.

Furthermore, the toroidal body in the present invention is not limited to a toroidal body in which the surface on which the recess is formed is perpendicular to the axis of the rotary sorting cylinder as in the embodiment, but also a surface on which the recess is formed. It may be in a so-called conical shape or the like, which is formed so as to intersect the axis obliquely (90 degrees or less).

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional front view of a rice hulling sorter, Fig. 2 is a sectional view taken from the side of Fig. 1, and Fig. 3 is an enlarged sectional view of the main part of Fig. 1. FIG. 4 is a cross-sectional view taken from the side in FIG. 3. DESCRIPTION OF SYMBOLS 1... Wind sorting device, 2... Hulling mechanism, 3... Rotary sorting mechanism, 23... Box-shaped case, 24... Sorting cylinder, 52... Circular body, 26... Motor, 27...
Recess, 28... Brown rice catcher, 30... Mixed receiver, 2
5, 25... Roller, 53... Recess, 53a... Inclined surface, 55... Notch.

Claims (1)

[Scope of utility model registration request] In a paddy sorting machine comprising a horizontal rotary sorting cylinder having a plurality of recesses formed in its inner circumferential surface, which is driven to rotate, and a brown rice catcher disposed inside the rotary sorting cylinder along its axial direction, A toroidal body is fixed inside the sorting barrel so as to protrude inward in a direction intersecting the axial direction thereof, and a large number of recesses into which brown rice can fit are formed on the surface of the toroidal body. The feature is the rotating sorting barrel mechanism in the huller sorting machine.