JP2001029809A - Husking roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a husking roll which does not require the exchange of main and sub-husking rolls. SOLUTION: Both of the main husking roll 70 and sub-husking roll 71 of this husking roll are constituted by wrapping flexible materials, such as rubber, around roll cylinders 7a and their outer peripheral parts and regulating their outside diameters to approximately the same diameter. The roll cylinder 7a of the main husking roll 70 is formed to a diameter smaller than the diameter of the roll cylinder 7b of the sub-husking roll 71. A large amount of the flexible material is wrapped around the small-diameter roll cylinder 7a of the main husking roll 70 so as to be proportional to the rotating circumferential speed of both husking rolls to form a thick rubber roll layer 7a. A small amount of the flexible material proportional to the rotating circumferential speed is wrapped around the large-diameter roll cylinder 7b of the sub-husking roll 71 to form the thin rubber layer 7b. As a result, the rubber layers of the main husking roll 70 and the sub-husking roll 71 wear while maintaining balance. Both rubber layers may thus be completely worn out without the need for exchanging the rolls during the course of husking work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvement of a hulling roll.

[0002]

2. Description of the Related Art In a conventional apparatus, as shown in FIG. 2, a main hulling roll 70 and a sub hulling roll 71 both have the same diameter and the rubber layer on the outer peripheral side has substantially the same thickness.

[0003]

In the conventional apparatus,
Since the main hulling roll 70 and the sub hulling roll 71 have the same diameter and the same thickness of the rubber layer on the outer peripheral side, the main hulling roll 70 having a faster peripheral speed is faster than the sub hulling roll 71. There is a disadvantage that the main and sub hulling rolls 71 and 7 must be replaced during the work.

Accordingly, the present invention is intended to realize a main / sub hulling roll that does not require replacement of the main / sub hulling rolls during the hulling operation and that is evenly worn.

[0005]

The present invention takes the following technical measures in order to solve such problems. That is, the present invention provides the main hulling roll 70 and the sub hulling roll 7
1 and a flexible material such as rubber is wound around the roll cylinder 7a and the outer periphery thereof so that the outer diameter is substantially the same.
The roll cylinder 7a of the main hulling roll 70 is configured to have a smaller diameter than the roll cylinder 7a of the sub hulling roll 71.
a, a large amount of a flexible material is wound around the both hulling rolls so as to be in proportion to the rotation speed of the hulling rolls to form a thick rubber roll layer 7b. A thin rubber roll layer 7b is formed by winding a small amount of a flexible material in proportion to the hulling roll.

[0006]

[Operation and effect] Main hulling roll 70 and sub hulling roll 7
1 is provided with a predetermined peripheral speed difference, the peripheral speed of the main hulling roll 70 is increased, and the peripheral speed of the sub hulling roll 71 is decreased, and grains are supplied to perform the hulling operation. Then, the rubber layer of the outer peripheral portion wears in proportion to the rotation peripheral speed, the rubber layer of the main hulling roll 70 and the rubber layer of the sub hulling roll 71 wear at the same ratio, and only one of them excessively wears. Can be prevented.

However, the rubber layers of the main hulling roll 70 and the sub hulling roll 71 are worn while keeping balance, and there is no need to change the rolls during the hulling operation, and both rubber roll layers are worn out. Can be.

[0008]

Embodiments of the present invention shown in the drawings will be described below. First, the overall configuration of a hulling sorter will be described with reference to FIG. The rice hulling sorter is a rice hulling unit that performs hulling 1, a rice hulling rice selection unit that wind-selects rice hulled from the rice hulling unit 1, and a mixing after wind selection in a rice hulling rice selection unit 2. It comprises a rocking sorting section 3 for separating and sorting rice into paddy and brown rice, a mixed rice frying machine 4, a brown rice frying machine 5, and the like.

The hulling unit 1 comprises a hulling hopper 6, a hulling roll 7,
7 comprises a hulling room 8 and the like. The sliding rice style selection unit 2 includes a sliding rice style selection box 9, a sliding rice style selection path 10, a pity trough 11, a sliding rice trough 12, a suction fan 13, and a dust tube 1.
4 and the like. Next, the swing sorting unit 3 will be described. The multi-stage swing sorting plates 15, 15,... Are provided with sorting irregularities on the plate surface. One vertical side is a high supply side, the other side is a low discharge side, and a horizontal direction (FIG. 1). Of the swing sorting plate 15 are inclined in both the vertical and horizontal directions, with one side of the swing sorting plate 15 being a high swinging upper side and the other side being a lower swinging side. A rocking device composed of rocking links is configured to be reciprocally rocked obliquely up and down in the horizontal direction.

A supply port is formed on the supply side of each of the oscillating sorting plates 15, 15,..., And the mixed rice fried by the mixed rice fryer 4 is mixed with a mixed rice hopper 24, a distribution supply gutter 16 and the like. , And via the distribution case 17, the liquid is supplied from the supply port to the swing sorting plates 15, 15,. The mixed rice supplied to the oscillating sorting plates 15, 15,...
Due to the relationship between the specific gravity and the friction coefficient, small brown rice with a large specific gravity has a drift distribution on the upper side, and paddy with a lighter specific gravity than the brown rice has a drift distribution on the lower side. In the middle part, mixed rice of unseparated paddy / brown rice is sorted and distributed. Thus, these sorted grains are separated and taken out by the brown rice partitioning plate 18 and the paddy partitioning plate 19 provided on the discharge side of the swinging sorting plate 15.

The extracted brown rice is taken out of the machine via a brown rice extraction gutter 20, a brown rice channel 21, and a brown rice mill 5 and mixed rice is mixed rice extraction gutter 22, a mixed rice channel 23, and a sliding rice. After the falling rice trough 12, the mixed rice fryer 4, the mixed rice hopper 24, the distribution supply gutter 16, and the distribution case 17, the swinging sorting plate 15,
, And are re-sorted. Further, the extracted paddy is lifted and returned to the hulling unit 1 via the hulling discharge gutter 25, the hulling channel 26, and the hulling machine 27, and the hulling is performed again.

Next, another embodiment of the hulling rolls 7, 7 will be described with reference to FIGS. The hulling rolls 7, 7 shown in FIG.
1 are both of the same diameter and the rubber layer is also formed of the same thickness, so that the main hulling roll 70 having a high peripheral speed wears faster. Thus, it is necessary to replace the main hulling roll 70, which has been heavily worn, with the sub-hulling roll 71, which is less worn, during the operation.

In this embodiment, even if the main and sub hulling rolls are not replaced during the hulling operation, a hulling roll that is worn evenly is intended to be realized. As shown in FIG. 2, both the main hulling roll 70 and the sub hulling roll 71 have the same outer diameter. Roll cylinder 7 of main hulling roll 70
a is configured to have a smaller diameter than the roll cylinder 7a of the sub hulling roll 71, and a large amount of rubber is wound around the roll cylinder 7a of the main hulling roll 70 in proportion to the rotation peripheral speed to form a thick rubber roll layer 7b. Then, a small amount of rubber is wound around the roll cylinder 7a of the sub hulling roll 71 in proportion to the rotational peripheral speed to form a thin rubber roll layer 7b.

When the main hulling roll 70 and the sub hulling roll 71 formed as described above are used for the hulling operation, the rubber roll layer 7b wears in proportion to the rotational peripheral speed. Both the rolls 70 and 71 wear at a substantially equal ratio, so that the two rubber roll layers 7b and 7b are completely worn out even if the rolls are not replaced during the operation. next,
The embodiment shown in FIG. 4 will be described.

In this embodiment, main and sub hulling rolls 70 and 71 are formed by forming a rubber roll layer 7b on the outer periphery of a roll cylinder 7a and covering the outer peripheral surface of the rubber roll layer 7b with a thin plate 28 made of stainless steel. are doing. The peripheral speed difference between the main and sub hulling rolls 70, 71 is about twice as large as the peripheral speed difference between the normal hulling rolls 7, 7 whose outer peripheral surface is formed by the rubber roll layer 7b. It is the difference.

In the conventional hulling roll, it is general to perform a hulling operation while frequently replacing the main and sub hulling rolls with a rubber layer on the outer peripheral surface in consideration of damage to grains. However, as described above, by forming the outer peripheral surface of stainless steel, wear can be reduced, and the frequency of roll replacement can be reduced. Further, in a hulling rice mill that performs the operation of hulling in a consistent manner, damage to the grain surface is not so important, so that such a hulling roll can sufficiently cope with such. Further, the coefficient of friction of the stainless steel surface is smaller than that of rubber, but a predetermined loss rate can be maintained by making the peripheral speed difference about twice.

Next, the removal of dust from the finished brown rice will be described with reference to FIGS. As shown in FIG. 5, a dust-absorbing box 2 is provided at the tip of the thrower cylinder 5a of the brown rice milling machine 5.
9 are arranged. Inside the dust-absorbing box 29, the upper shelf 3
The lower end of the suction pipe 32 is obliquely provided with a lower end of the suction pipe 32, and the lower end of the upper shelf 30 of the dust suction box 29 is connected to the start end of the suction pipe 32 by opening. It faces close to the suction port 13 a of the fan 13.

However, the finished brown rice dropped from the thrower cylinder 5a is diffused by the upper shelf 30, and the finished brown rice is separated from the dust by the impact at the time of falling to the lower shelf 31, and the relatively strong brown rice in the suction pipe 32 is separated. Suction removed by suction air,
It is discharged outside the machine via the suction fan 13. Next, an interlocking configuration of the mixed rice hopper 24 and the rice supply control valve of the rice hulling unit 1 will be described with reference to FIG.

The mixed rice hopper 24 is vertically movably supported by a spring (not shown). The mixed rice hopper 24 and the paddy supply control valve (not shown) of the hulling unit 1
They are linked and connected via linking members such as links. Thus, when the mixed rice hopper 24 moves downward or upward due to an increase or decrease in the amount of grain, the paddy supply control valve is relatedly adjusted to a decrease side or an increase side.

In coordinating the mixed rice hopper 24 and the rod 33, a bracket 34 is arranged on the side of the mixed rice hopper 24 so that the bracket 34 can be freely adjusted up and down and fixed at an arbitrary position. A rod 33 is movably inserted into upper and lower holes 34a, 34a of the bracket 34. Inside the bracket 34 of the rod 33, upper and lower adjustment bolts 35,
The compression of the spring 36 can be adjusted by the spring 35, and a collar 37 is provided between the upper end of the spring 36 and the upper adjustment bolt 35.
Is interposed.

When the grains move downward in the mixed rice hopper 24 against the accumulation spring (not shown), first, the spring 36 is compressed to a predetermined pressure via the bracket 34 and the collar 37, and then further compressed. When the mixed rice hopper 24 moves down, the rod 33 also moves down, and the rice supply control valve of the hulling unit 1 is opened and adjusted. Therefore, as shown by the solid line in FIG. 7, when the bracket 34 is adjusted and attached to the lower side of the mixed rice hopper 24, when a predetermined amount of grains are accumulated and moved down in the mixed rice hopper 24,
The paddy supply control valve is immediately opened and adjusted via the collar 37, the spring 36, and the rod 33, and the grain of the mixed rice hopper 24 can be quickly balanced.

As shown by the phantom line in FIG. 7, when the bracket 34 is adjusted and attached to the upper side of the mixed rice hopper 24, the paddy supply control valve is opened after a relatively large amount of grains have accumulated, and the paddy is adjusted. The hulling work can be performed smoothly while preventing frequent adjustment of the supply control valve.

[Brief description of the drawings]

FIG. 1 is an overall cut side view.

FIG. 2 is a cutaway side view of a main part.

FIG. 3 is a cut-away side view of a main part of a conventional device.

FIG. 4 is a cutaway side view of a main part.

FIG. 5 is a side view of a main part.

FIG. 6 is a cutaway plan view of a main part.

FIG. 7 is a cutaway side view of a main part, and a perspective view of the whole.

FIG. 8 is a reference diagram viewed from the front.

[Explanation of Signs] 1 ... Hulling part, 2 ... Sliding rice style selection part, 3 ... Swing sorting part, 4 ...
Mixed rice frying machine, 5 ... brown rice frying machine, 6 ... paddy hopper, 7 ... paddy roll, 8 ... paddy room, 9 ... paddy rice style selection box, 10 ... paddy rice style selection path, 11 ... Pity trough, 12: sliding down rice trough, 13: suction fan, 14: dust bin, 15: swing sorting plate, 16: distribution supply gutter, 17: distribution case, 18: brown rice partition plate, 19
... Rice partition plate, 20 ... Brown rice extraction gutter, 21 ... Brown rice channel, 22
... mixed rice extraction gutter, 23 ... mixed rice channel, 24 ... mixed rice hopper, 25 ... paddy extraction gutter, 26 ... paddy channel, 27 ... paddying machine,
28: stainless steel sheet, 29: dust-absorbing box, 30
... upper shelf, 31 ... lower shelf, 32 ... suction pipe, 33 ... rod, 34 ... bracket, 35 ... upper / lower adjustment bolt, 3
6 ... Spring, 37 ... Color, 70 ... Main hulling roll,
71 ... Vice hulling roll.

Claims (1)

[Claims] 1. A main hulling roll 70 and a sub hulling roll 7
1 and a flexible material such as rubber is wound around the roll cylinder 7a and the outer periphery thereof so that the outer diameter is substantially the same.
The roll cylinder 7a of the main hulling roll 70 is configured to have a smaller diameter than the roll cylinder 7a of the sub hulling roll 71.
a, a large amount of a flexible material is wound around the both hulling rolls so as to be in proportion to the rotation speed of the hulling rolls to form a thick rubber roll layer 7b. A thin rubber roll layer 7b formed by winding a small amount of a flexible material in proportion to the hulling roll.