JPH10314602A - Hulling fan for husking and milling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent unpolished rice, chaff, etc., from stagnating and clogging in the spacings between the outside walls of side disks of a husking fan and the inside wall of a fan casing by extendedly providing the outside walls of the side disks with projecting line pieces in a radial direction along the outer peripheral side from the central side of the side disks. SOLUTION: The fan case 6 for housing the husking fan 1 of a husking fan device 7 consists of a main body 6a and a cap to be put on this main body 6a and a urethane lining 6c is affixed to its inner peripheral surface. The two side disks 2A arranged to face the husking fan 1 and hulling vanes 3 are both molded of synthetic resins. The outside walls 2a of the side disks 2A are extendedly provided with the projecting line pieces 4 in the radial direction of the side disks 2 integrally via the through-parts penetrating the through-holes of the side disks 2A. The husking vanes 3 and the projecting line pieces 4 are integrally molded and coupled to the side disks 2A of the husking fan 1 by insert molding.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan for removing rice used in a huller mill.

[0002]

2. Description of the Related Art Conventional hulling rice milling fans have the following features.
For example, there is a fan similar to that described in Japanese Utility Model Publication No. 50-3487. That is, according to the description in the publication,
A disk made of hard synthetic resin and a disk made of hard synthetic resin having a paddy suction hole in the center are opposed to each other, made of soft synthetic resin between both disks, and bent in an arc shape in the direction of rotation. Dispose of the paddy slats radially, insert the projections provided on both sides of the slats into the through-holes formed in the disk, and heat and melt the protrusions outside the through-holes of the projections to tack the head. It is something like a shape.

[0003] In this fan, the fan is slid, that is, the rice hulls are crushed by the high-speed rotation of the fan.

[0004] Further, the fan for removal is used by being housed in a fan case, and the removed brown rice, rice hulls and the like scattered outside the fan for removal are sorted and connected to the fan case. It is sent to the device, where brown rice and chaff are sorted.

[0005]

Most of the brown rice, rice hulls and the like scattered outside of the fan are sent to the sorting device as described above. There is a thing that goes around the outer wall side of the plate, that is, enters into a gap between the outer wall of the side disk and the inside of the fan case, stays there, and becomes clogged.

[0006] If there is brown rice, rice hull, or the like in a clogged state between the outer wall of the side disk of the removal fan and the inner wall of the fan case, the brown rice or rice hull rotates the removal fan. In this case, a frictional force is generated between the escape fan and the outer wall of the side disk, and the load on the motor serving as a power source for the rotational movement of the escape fan is increased.

[0007] In such a case, depending on the capacity of the motor, if the load on the motor increases as described above, the starting torque naturally increases. (500-4,000 rpm), and in the worst case, it may not rotate at all.

[0008] As described above, if the rotation fan does not reach the desired rotation speed, it is impossible to apply the desired amount of centrifugal force to the rice, and thus a large number of paddy is not removed. As a result, the escape performance is reduced.

Further, as described above, if the fan does not rotate at all, the rice cannot be extracted at all, and the extraction function is completely lost.

[0010] In view of the above circumstances, an object of the present invention is to provide a hulling rice milling machine with a clearance fan between an outer wall of a side disk of the rotation fan and an inner wall of a fan case accommodating the rotation fan. To prevent brown rice and rice hulls from entering and remaining there.

[0011]

In order to achieve the above object, the present invention can be described as follows: two opposing side disks made of synthetic resin; and a synthetic resin provided between the two side disks. In a hulling fan of a hulling rice mill comprising: a hulling rice mill made of stainless steel, on the outer wall of the two side disks, from the center side of the side disks toward the outer peripheral side, preferably, This is a fan for hulling rice milling machine provided with ridges extending in the radial direction of the side disk.

[0012] According to the husking rice milling machine removal fan, it tries to enter the gap formed between the outer wall of the side disk of the removal fan and the inner wall of the fan case accommodating the removal fan. Even if there is brown rice or rice hull, the brown rice or rice hull is scattered in the centrifugal direction by the centrifugal force given by the ridges extending on the outer wall of the side disk, Rice husks rarely enter the gap between the outer wall of the side disk of the escape fan and the inner wall of the fan case.

[0013] Even if there is brown rice or rice hull that enters the gap between the outer wall of the side disk of the cooling fan and the inner wall of the fan case, the brown rice or rice hull or the like remains in the same manner as described above. Since the ridges give the centrifugal force and scatter in the centrifugal direction, they do not stay in the gap between the outer wall of the side disk of the escape fan and the inner wall of the fan case and become clogged. .

Therefore, when the fan is rotated by brown rice, rice hulls, or the like clogged in the gap between the outer wall of the fan side disk and the inner wall of the fan case, the fan fan rotates in a circular manner. Since the frictional force does not occur between the plate and the outer wall of the plate and the load on the motor that is the power source for the rotation of the escapement fan does not increase, the rotation speed of the escapement fan is increased. There is no difficulty in reaching the vehicle, or the escape fan does not rotate at all, and thus the escape performance is not reduced or the escape function is not lost.

[0015] The ridge may be provided on the outer wall of each of the two side disks.
By doing so, it is possible to prevent brown rice, rice hulls, and the like from entering the gap between the outer wall of each of the two side disks and the inner wall of the fan case and staying there and clogging.

In the huller mill of the present invention, it is preferable that the removal blade and the ridge are provided on the side disk by insert molding. According to this, the number of steps required for assembling the escape fan is significantly reduced as compared with the case where the escape blade and the protruding strip are individually formed and provided separately on the side disk. be able to.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention are shown in FIGS.
This will be described below.

First, the outline of the hulling rice milling machine will be described with reference to FIG. 7. The hulling rice milling machine 100 is composed of a centrifugal force removal fan device 7, an air selection device 8, a rice milling device 9, and the like. In the hulling rice mill 100, the rice husks that have flowed into the husking fan device 7 are husked by the husking fan device 7.

The brown rice and the rice husks that have escaped rise up the pipe 10 and are separated into brown rice and rice husks by the wind force in the air selection device 8. Then, the brown rice falls into the brown rice tank 12, flows down into the rice mill 9, is refined there, becomes white rice, and is discharged out of the machine through the white rice discharge port 11.

The rice hulls are pumped through a pipe 20 to a cyclone 30, separated from air, and then stored in a rice husk storage bag.

Next, the details of the removal fan device 7 will be described with reference to FIGS. Removal fan device 7
Comprises a fan 1 for escape and a fan case 6 for accommodating the fan 1 for escape.

The fan case 6 includes a main body 6a and the main body 6a.
A urethane lining 6c is attached to the inner peripheral surface of the lid 6b.

The fan 1 for removing the heat is disposed opposite to the fan 2.
And a plurality of arc-shaped bending blades 3 provided between the inner walls 2c and 2d of the side disks 2A and 2B, respectively. Blade 3
, Penetrating portions 3 penetrating through holes 2e,.
a,... and the side plate 2A
Of the side disk 2 extending in the radial direction of the side disk 2, the blades 3 for removal, and the side disk 2B
Are formed integrally with each other through penetrating portions 3b,... Penetrating through holes 2f,. And a collar portion 5,.

In the removal fan 1, the side disk 2
A and 2B and the blades for removal 3 and the like are both made of synthetic resin, but the side disks 2A and 2B are
It is preferable to be formed of a synthetic resin that is harder than the blades 3, 3 and so on. For example, the side disks 2A and 2B are made of ABS which is generally classified as a hard synthetic resin.
Molded with a resin, the blades 3 for demolding are thermoplastic elastomers (so-called TPE) which are generally classified as soft synthetic resins, and among them, particularly preferred are polyolefin-based thermoplastic elastomer elastomers ( So-called TP
O. )).

Further, in the removal fan 1, with respect to the side disk 2A, the removal blades 3,.
Are preferably combined by integral molding by insert molding. As for the molding method, as shown in FIG. 6 (FIG. 6 shows a state in which the mold is opened after molding), the mold is previously inserted into one of the molds B and B. Put the disk 2A, close the molds a and b,
The molding machine c is used to fill and mold the synthetic resin into the molds i and b from the gate 2 provided on the outer wall 2a side of the side disk 2A.
That is.

Accordingly, as described above, the method of assembling the removal fan 1 is such that the removal blades 3,... And the ridges 4, 4,. Are formed integrally with each other, and then with respect to the side disk 2B, the flanges 5,... (The flanges 5,. The slits 5a,... Are also molded at the same time in the insert molding stage.) While the slits 5a,. Insertion, flange 5, side plate 2
The outer disk 2B projects from the outer wall 2b and returns to the large diameter state, thereby connecting and fixing the side disk 2B and the blades 3 for removal.

The flanges 5,... Are formed as shown in FIG.
It is tapered toward the tip, that is, it is tapered. By doing so, the through hole 2
can easily be inserted into the f,.

As described above, the removal blades 3,... And the ridges 4,. 3,
.. and the ridges 4,... Are individually molded, and compared to the case where they are individually attached to the side disk 2A,
Since the number of steps required for assembling the removal fan 1 can be reduced, the assembly of the removal fan 1 can be easily performed.

The operation of the embodiment of the present invention will be described.

When the escape fan 7 starts, the escape fan 1 rotates at a high speed. When the paddy is supplied to the central portion of the fan 1 as shown by an arrow A3, the paddy receives centrifugal force by the blades 3 and moves in the direction of arrow A4, The rice hull goes out of the removal fan 1 and scatters toward the lining 6c attached to the inner peripheral surface of the fan case 6, collides with the lining 6c, and the rice husk is removed. The brown rice and the rice husk removed here are sent to the wind selection device 8 via the pipe 10 as described above.

In the removed brown rice or rice hull, there is a gap 6e formed between the outer wall 2a of the side disk 2A of the removal fan 1 and the inner wall 6d of the lid 6b of the fan case 6. , As indicated by the arrow A1, the centrifugal force is applied to the outer wall 2a of the side disk 2A by centrifugal force by a plurality of ridges 4 extending radially. Since the particles are scattered in the direction, that is, the direction A2, they hardly enter the gap 6e between the outer wall 2a of the side disk 2A of the removal fan 1 and the inner wall 6d of the fan case 6.

The outer wall 2 of the side disk 2A of the removal fan 1
Even if there is brown rice, rice hull, or the like that enters the gap 6e between the a and the inner wall 6d of the fan case 6, the centrifugal force is applied by the ridges 4,. That is, since it will fly in the A2 direction,
It does not remain in the gap 6e between the outer wall 2a of the side disk 2A of the removal fan 1 and the inner wall 6d of the fan case 6 and become clogged.

Therefore, the side disk 2A of the removal fan 1
The outer wall 2a of the side disk 2A of the removal fan 1 when the removal fan 1 rotates due to brown rice, rice hulls or the like clogged in the gap 6e between the outer wall 2a and the inner wall 6d of the fan case 6.
No frictional force is generated between them, and the load on the motor 40, which is the power source of the rotational movement of the fan 1, is not increased.
Does not easily reach the intended rotational speed, or the escape fan 1 does not perform any rotational movement at all, thereby reducing the escape performance or losing the escape function. There is no such thing.

As described above, if the unscattered paddy is included in the scattered pieces in the A2 direction by the ridges 4,...
.. May also be released by colliding with the projections, so that the ridges 4,... Also improve the escape performance.

The embodiment of the present invention is not limited to the above example. For example, although the number of steps required for assembling the removal fan increases, the side disk 2A and the removal blade 3,.
And the ridges 4,... Are not integrally connected by insert molding as described above, but the removal blades 3,. It is also possible to form them and connect them individually to the side disks 2A and 2B.

Further, the side disk 2B and the blades 3 for removal are provided.
With slits 5a,.
, For example, the tip of the penetrating portions 3b,... Penetrating through the through holes 2f,... Of the side plate 2B is made to protrude from the outer surface 2b of the side plate 2B. May be heated and melted to form a stud-head shape and then joined.

Although not shown in the drawings, the ridges 4,... Extending in the radial direction are not provided only on the outer wall 2a of the one side plate 2A, but are provided on the outer wall of the other side disk 2B. 2
b may be provided.

By doing so, the two side disks 2
A, 2B, outer walls 2a, 2b and fan case 6
Brown rice and rice hulls can enter the gaps 6e and 6g between the inner walls 6d and 6f, and stay there to prevent clogging.

[0039]

As described above, the husking fan of the hulling rice mill according to the present invention is constructed as described above. Therefore, the outer wall of the side disk of the husking fan and the inner wall of the fan case accommodating the husking fan are provided. Even if there are brown rice or rice hulls that try to enter the gap formed between them, the brown rice or rice hulls extend from the center side of the side disk toward the outer peripheral side on the outer wall of the side disk Centrifugal force is applied by the plurality of projected ridges and the particles are scattered in the centrifugal direction. There are few things.

Even if there is brown rice or rice hull that enters into the gap between the outer wall of the side disk of the fan and the inner wall of the fan case, the brown rice or rice hull is removed in the same manner as described above. Since the ridges give the centrifugal force and scatter in the centrifugal direction, they do not stay in the gap between the outer wall of the side disk of the escape fan and the inner wall of the fan case and become clogged. .

Therefore, when the fan is rotated by brown rice or rice hulls or the like clogged in the gap between the outer wall of the fan side disk and the inner wall of the fan case, the fan fan rotates in a circular manner. Since the frictional force does not occur between the plate and the outer wall of the plate and the load on the motor that is the power source for the rotation of the escapement fan does not increase, the rotation speed of the escapement fan is increased. There is no difficulty in reaching the vehicle, or the escape fan does not rotate at all, and thus the escape performance is not reduced or the escape function is not lost.

When the plurality of ridges are provided on the outer wall of each of the two side disks, brown rice or the like is formed in the gap between the outer wall of each of the two side disks and the inner wall of the fan case. It is possible to prevent rice hulls and the like from entering and remaining there and becoming clogged.

Further, if the plurality of escape blades and the plurality of protruding strips are provided by insert molding with respect to the one side disk, the plurality of escape blades and the plurality of protrusion blades are provided. The number of steps required for assembling the escape fan can be significantly reduced as compared with the case where the ridges are separately molded and individually provided on the side disk, and the escape fan can be used. Can be easily assembled.

[Brief description of the drawings]

FIG. 1 is a view showing a fan for removing rice from a hulling rice milling machine according to the present invention, wherein the fan for removing rice is accommodated in a fan case.
It is a front view in the state where the lid of the fan case was opened.

FIG. 2 is a view showing a fan for dusting of the hulling rice milling machine of the present invention, wherein the fan for dusting is accommodated in a fan case.
FIG. 4 is a sectional view taken along line II-II of FIG. 3.

FIG. 3 is a view showing a fan for removing rice from the huller milling machine according to the present invention, wherein the fan for removing rice is accommodated in a fan case;
It is a side sectional view.

FIG. 4 is an enlarged sectional view of a main part of FIG.

FIG. 5 is an enlarged view showing a flange (including a penetrating portion) of a fan for removing rice from the hulling rice mill of the present invention.

FIG. 6 is a view showing a state of molding a husking fan of the hulling rice mill of the present invention.

FIG. 7 is a partially sectional view showing a hulling rice mill provided with a fan for removing the hulling rice mill of the present invention.

[Description of sign]

 DESCRIPTION OF REFERENCE NUMERALS 1 removal fan 2A, 2B side disk 2a, 2b outer wall 3 removal blade 4 ridge

Claims (3)

[Claims] 1. A hulling rice mill comprising two synthetic resin-made side discs disposed opposite to each other and a synthetic resin removing blade provided between the two side discs. In the fan for removing rice, the removal of the hulling rice mill is characterized in that a ridge is provided on the outer wall of the two side disks and extends from the center side of the side disks toward the outer periphery.フ ァ ン fan. 2. A hulling rice mill comprising two synthetic resin-made side discs disposed opposite to each other and a synthetic resin removing blade provided between the two side discs. A fan for removing rice from a hulling rice mill, wherein a ridge piece extending in a radial direction of the side disks is provided on an outer wall of the two side disks. 3. The method according to claim 1, wherein the removal blade and the protruding strip are formed integrally with the side disk by insert molding.
A fan for husking rice milling machine as described.