JPH054152B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a hulling and sorting device that removes paddy using a removal mechanism and then separates and takes out only brown rice.

[Conventional technology]

Conventionally, this type of huller sorting equipment has often adopted a swinging sorting mechanism for sorting brown rice.
This oscillating type sorting mechanism has disadvantages such as being large and generating large vibrations and noise, so Japanese Patent Application Laid-Open No. 49-24745 as a prior art proposes a method for sorting brown rice from mixed rice after removal. It is proposed to use a rotary sorting mechanism comprising a brown rice receiving trough inside a horizontal rotary sorting cylinder with a large number of depressions formed on the inner circumferential surface.

The rice hulling and sorting device described in this publication introduces the mixed rice that has been removed from the hull together with the rice husks into the sorting cylinder of the rotary sorting mechanism, and in the sorting cylinder, the rice husks in the mixed rice are blown together with the wind. At the same time as suction sorting, brown rice is sorted.

[Problem that the invention seeks to solve]

However, in the rotary sorting mechanism, the mixed rice supplied into the sorting cylinder is scraped up to a certain height by the rotation of the sorting cylinder, and then falls to the bottom repeatedly, forming a fluidized bed. On the way to the discharge side, the brown rice of the mixed rice is lifted up to a relatively high position while being stuck in a hollow, and then falls, and the paddy of the mixed rice falls from a lower position than the brown rice. The brown rice that falls from a high position is caught in the brown rice receiving trough and taken out by utilizing this phenomenon. In addition to changes in the flow state and lifting height within the body, the rice husks enter the hollows and the number of brown rice entering the hollows is reduced, resulting in a decline in the sorting accuracy and ability for brown rice.

The purpose of the present invention is to prevent this problem, and another purpose is to reduce the size of the entire hulling sorting device to improve its strength, and to increase the size of the entire hulling sorting device. The purpose of the present invention is to increase the amount of paddy that can be supplied to the removal mechanism without causing any waste, thereby improving work efficiency.

[Means for solving problems]

In order to achieve this object, the present invention has a removal mechanism equipped with a top-open type paddy supply hopper, a horizontal rotary sorting cylinder with a large number of depressions formed on its inner circumferential surface, a brown rice receiving trough, and a rotating A rectangular box with a built-in rotary sorting mechanism in which a sorting cylinder is covered with a box-shaped case, and a wind sorting section that wind-sorts the mixed rice from the former removal mechanism before being supplied to the rotary sorting mechanism. In a hulling sorting device consisting of a body,
On one side of the rectangular box body and the upper surface, the removal mechanism with the paddy supply hopper is installed, and on the other side, a box-shaped case is provided. The mechanism is provided so that the axis of the rotary sorting cylinder is parallel to the longitudinal direction of the rectangular box, and the paddy supply hopper in the removal mechanism is oriented toward the box-shaped case incorporating the rotary sorting mechanism. The extension part is connected to the box-shaped case.

[Action/effect of the invention]

With this configuration, the mixed rice removed in the removing mechanism is fed into the sorting cylinder of the rotary sorting mechanism after the rice husks are sorted and removed in the wind sorting section. Unlike when rice husks are sorted by suction with wind, the flow state in the sorting cylinder and the lifting height of brown rice do not change, and the rice husks enter the recesses on the inner surface of the sorting cylinder. The number of brown rice entering the rice does not decrease, and the sorting accuracy and sorting efficiency for brown rice can be improved.

Moreover, in the present invention, the wind sorting section is provided inside the rectangular box body, and the removal mechanism and the rotary sorting mechanism are arranged side by side on the upper surface of the rectangular box body, so that the wind sorting section can be accommodated. The upper surface of the box body can be effectively used for installing the removing mechanism and the rotary sorting mechanism, and the rice hulling sorting device can be made smaller.

Furthermore, the present invention extends the top-open type paddy supply hopper in the removal mechanism as described above toward the box-shaped case incorporating the rotary sorting mechanism,
By connecting the extension to the box-shaped case,
Since the rectangular box that serves as a base for the removal mechanism and rotary sorting mechanism, the removal mechanism, and the rotary sorting mechanism are interconnected, the strength of these three can be improved. By extending the top-open type paddy supply hopper in the dehulling mechanism toward the box-shaped case housing the rotary sorting mechanism, the internal volume of the paddy supply hopper has been increased, leading to an increase in the size of the hulling and sorting device. can be increased without

Therefore, according to the present invention, it is possible to improve the sorting accuracy of a hulling sorting device that uses a rotary sorting mechanism for sorting from mixed rice after dehulling, and it is also possible to downsize the hulling sorting device. Furthermore, durability can be increased by increasing the strength of each component of the hulling and sorting device, and the amount of paddy that can be supplied to the dehulling mechanism can be increased without increasing the size of the hulling and sorting device. Since it can be increased, the number of times the paddy in the paddy bag is fed to the paddy supply hopper in the removal mechanism is reduced, which also has the effect of improving work efficiency.

〔Example〕

Next, the present invention will be explained with reference to drawings of embodiments. FIG. 1 shows a longitudinal sectional front view of the entire hulling and sorting device, and this hulling and sorting device includes a rectangular box D,
The entire apparatus is composed of a removal mechanism A mounted on the right side of the upper surface of the rectangular box D, and a rotary sorting mechanism C mounted on the left side of the upper surface of the rectangular box D.

The removing mechanism A is composed of a top-open type paddy supply hopper 1 and a removing roll 2 fitted on a pair of shafts 8 and 9. A wind sorting section B for wind-selecting the rice husks from the mixed rice after shedding is built into the part almost directly below. This air sorting section B includes an air intake port 5 located at the right end of the rectangular box body D and at the left end of the rectangular box body D, and a space 7 between the removal mechanism A and the rotary sorting mechanism C. It is equipped with a suction dust exhaust fan 3 configured to suction air from an intake port 4, and
It is equipped with a mixed rice conveyor 10, a second product conveyor 11, and a brown rice conveyor 13 for mixed rice after wind selection, the mixed rice conveyor 10 has a mixed rice thrower 51, and the brown rice conveyor 13 has a brown rice thrower 5.
7 are connected to each other.

The removal mechanism A and the wind selection section B are driven by a motor 6 provided inside the left side of the rectangular box body D.

That is, the belt 14 is wound between the pulley 15 fitted to the output shaft of the motor 6, the pulley 16 of the mixed rice conveyor 10, and the pulley 17 fitted to the detached shaft 8, and the mixed rice conveyor 10
And while the shaft removal 8 is rotationally driven by the motor 6,
Another pulley 1 in the mixed rice conveyor 10
6', the pulley 20 on the shaft 12 of the suction and dust removal fan 3, the pulley 19 on the second product conveyor 11, and the pulley 21 on the brown rice conveyor 13, and the belt 18 is wound between the suction and dust removal fan 3. , a second product conveyor 11 and a brown rice conveyor 13 are configured to be rotationally driven by a mixed rice conveyor 10.

The rotary sorting mechanism C separates the de-air-sorted mixed rice (a mixture of brown rice and paddy) into brown rice and paddy. It is equipped with a sorting cylinder 22 and a secondary sorting cylinder 23, both of which are open at both ends, and have a large number of depressions on their inner surfaces that are large enough to fit brown rice. In addition, these sorting cylinders 22 and 23 are installed horizontally so that their axes are perpendicular to the axes of the roll removal mechanisms 2 and 2 in the removal mechanism A and extend in the longitudinal direction of the box body D. The side closer to A is configured as a discharge side Y, and the side farther from the removal mechanism A is configured as a supply side X. In this case, the primary sorting cylinder 22 has a pair of rotating shafts 3 rotatably supported on both left and right sides within the box-shaped case C'.
A plurality of rollers 24 fitted in the cylinders 7 and 37 are rotatably mounted on the upper surface of the secondary sorting cylinder 23.
Similarly, a plurality of rollers 25 fitted on a pair of rotating shafts 39, 39 rotatably supported on both left and right sides of the box-shaped case C' are rotatably placed on the upper surface of the rollers 25. There is.

Inside the primary sorting cylinder 22, there is a brown rice receiving trough 28 with an open top surface extending in the axial direction of the sorting cylinder;
A transfer gutter 27 is provided with both ends thereof fixed to the box-like case C', and in the transfer gutter 27, the rice from the mixed rice thrower 51 is disposed within one end of the discharge side Y of the transfer gutter 27. Spiral conveyor 2 that transfers the mixed rice flowing in through the hopper 52 to the supply side X and supplies it into the primary sorting cylinder 22
6 is provided, and a spiral conveyor 29 is provided in the brown rice receiving gutter 28 to transfer the brown rice entering the brown rice receiving gutter 28 to the supply side X.
The outlet end of the supply side
The supply side X in the secondary sorting cylinder 23 via
It communicates within.

On the other hand, the top-open type paddy supply hopper 1 in the removal mechanism A is extended toward the box-shaped case C' in the rotary sorting mechanism C, and its cylindrical portion 1a is
and the box in the rotary sorting mechanism C through a gutter 58 for returning the paddy discharged from the discharge side Y of the primary sorting cylinder 22 in the rotary sorting mechanism C to the paddy supply hopper 1 in the removing mechanism A. The structure is connected to the type case C′.

Further, inside the secondary sorting cylinder 23, there is a brown rice receiving trough 3 with an open top surface extending in the axial direction of the sorting cylinder.
2 is provided with its both ends fixed to the box-shaped case C', and within the brown rice receiving gutter 32 is a spiral conveyor configured to transfer the brown rice entering the brown rice receiving gutter 32 to the discharge side Y. 33, the outlet end of the discharge side Y of the brown rice receiving trough 32 is connected to the brown rice conveyor 13 through a passage 59, and the discharge side Y of the secondary sorting cylinder 23 is connected to the mixed rice conveyor 10 through a receiving chute 60. are connected to each other.

In addition, the brown rice receiving channel 2 in the primary sorting cylinder 22
8 and the brown rice receiving trough 32 in the secondary sorting cylinder 23
are provided with rotatable adjustment partition plates 55 and 56 for adjusting so that only long brown rice that can be produced in these can be inserted.

both rotating shafts 37 in the primary sorting cylinder 22;
Both rotating shafts 39 in the secondary sorting cylinder 23, and spiral conveyors 29 in both brown rice receiving troughs 28, 32,
The shafts 30 and 34 of 33 are configured to transmit power to each other on the supply side The spiral conveyor 26 in the transfer gutter 27 is configured to transmit power from a shaft 30 of a spiral conveyor 29 in the brown rice receiving gutter 28 via a gear 40 .

Further, on the upper surface of the rectangular box body D, there are provided a worm 41 and a worm wheel 42 that mesh with each other in the space 7 between the removing mechanism A and the rotary sorting mechanism C.
and a pulley 44 fitted to the shaft 43 of the worm 41 in the power transmission mechanism a, and a shaft removing mechanism 8 in the removing mechanism A.
While winding the belt 46 around the pulley 45,
Spiral conveyor 33 in the rotary sorting mechanism C
The end of the discharge side Y of the shaft 34 projects toward the removal mechanism A side, and a pulley 49 fitted to the projecting end of the shaft 34 and a pulley 48 fitted to the output shaft 47 of the power transmission mechanism a are provided. It is configured to transmit power to the rotational sorting mechanism C by wrapping a belt 50 around it.

When paddy is supplied to the paddy supply hopper 1 during operation, the mixed rice removed by the removing mechanism A is transferred to the suction dust exhaust fan 3 in the wind sorting section B for the mixed rice.
After the paddy grains are removed by the wind flowing toward the , the mixed rice enters the mixed rice conveyor 10 , and this mixed rice is transferred from the upper end of the mixed rice thrower 51 to the supply side in the primary sorting cylinder 22 via the hopper 52 and the transfer gutter 27 . Supplied to X.

The mixed rice thus supplied into the primary sorting cylinder 22 is repeatedly scraped up to a certain height by the rotation of the primary sorting cylinder 22 and then falls to the bottom, forming a fluidized bed while being discharged. It is transported towards side Y.

During this fluid transfer, the brown rice in the mixed rice is
Mainly brown rice enters the brown rice receiving trough 28 by being fitted into the hollow on the inner surface of the primary sorting cylinder 22 and lifted up to a relatively high place and then falling from the hollow.

As described above, after the brown rice is removed to the brown rice receiving trough 28 in the primary sorting cylinder 22, the amount of paddy increases as the mixed rice is transferred to the discharge side Y of the primary sorting cylinder 22. The paddy is sent from the discharge side Y to the paddy supply hopper 1 in the removal mechanism A through the receiving trough 58 as shown by arrow A, and is removed again. On the other hand, the brown rice that has entered the brown rice receiving trough 28 in the primary sorting cylinder 22 is transferred to the chute 53,
54 to the supply side X inside the secondary sorting cylinder 23, where it is sorted again.

That is, while the brown rice supplied into the secondary sorting cylinder 23 is being transferred to the discharge side Y while flowing in the same manner as described above, only the brown rice is transferred to the brown rice receiving trough 32.
After being sorted to enter the brown rice, it flows out from the discharge side Y through the receiving chute 60 to the mixed rice conveyor 10, and is sent to the primary sorting cylinder 22 again.While repeating the circulation, it enters the brown rice receiving gutter 32. Brown rice is
After entering the brown rice conveyor 13 through a passage 59 as shown by arrow B, the brown rice is taken out of the machine by a brown rice thrower 57.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional front view of the entire hulling and sorting device, and FIG.
3 is a side view of FIG. 1 as viewed from above. A... Detachment mechanism, C... Rotary sorting mechanism, B...
... Wind selection section, D... Rectangular box, 22, 23...
Rotating sorting cylinder, 28, 32...Brown rice receiving gutter, 1...
Paddy supply hopper, 1a... Extension of paddy supply hopper, C'... Box-shaped case of rotary sorting mechanism.

Claims (1)

[Claims] 1. A removal mechanism equipped with a paddy supply hopper with an open top surface, a brown rice receiving trough inside a horizontal rotating sorting cylinder with a number of depressions formed on the inner circumferential surface, and a box-shaped case covering the rotating sorting cylinder. In a hulling sorting device comprising a rotary sorting mechanism and a rectangular box housing a wind sorting section that wind-sorts the mixed rice from the removing mechanism before being supplied to the rotary sorting mechanism, On the upper surface of the rectangular box body, the unloading mechanism with a paddy supply hopper is mounted on one side, and a box-shaped case is provided on the other side, and the rotary sorting mechanism is mounted within the box-shaped case. The rotary sorting cylinder is provided so that its axis is parallel to the longitudinal direction of the rectangular box, while the paddy supply hopper in the removal mechanism is extended toward the box-shaped case that incorporates the rotary sorting mechanism. A rice hulling sorting device characterized in that the extension part is connected to a box-shaped case.