JP3398586B2 - Rice milling equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a whitening device for a rice polishing machine.

[0002]

2. Description of the Related Art A conventional rice milling machine has a structure as shown in FIG. Reference numeral 51 in FIG. 7 is a main body casing,
Upper casing 52, white polishing cylinder 53, lower casing 54
And the like are sequentially assembled from the upper part to the lower part and assembled by bolts and the like, and in the assembled state, the axes are arranged so as to coincide with each other. A screw feeder device 56 for supplying unpolished rice into the main body casing 51 is connected to one side surface of the upper casing 52, and a screw feeder 56a rotated by a feeding motor 58 is used to feed the unpolished rice from a hopper 57 for feeding unpolished rice. Brown rice is supplied into the main body casing 51 through an opening 52a formed on one side surface of the upper casing 52.

A hollow rotary shaft 59 and a rotary drive shaft 73 spline-coupled to the lower part of the rotary shaft 59 are provided at the axial center of the main body casing 51. Rotating shaft 59
A feed roll 60 for feeding brown rice to the rice milling roll 61 side below is attached to the upper part of the
Is attached to a rice polishing roll 61. Also,
An opening control member 65 is externally fitted onto the small diameter portion 61b at the lower end of the rice polishing roll 61 in a vertically slidable posture.

A net 67 is arranged inside the milling cylinder 53 at a predetermined distance from the outer periphery of the milling roll 61, and one side of the lower outer periphery of the milling cylinder 53 has a bran generated during milling. A discharge port 68 for discharging is opened. Further, a white rice outlet forming member 69 that forms a white rice outlet passage 69 a is arranged between the bottom surface of the white polishing cylinder 53 and the upper end surface of the lower casing 54. The inner circumference of the white rice outlet forming member 69 has a pointed edge shape, and is formed into a shape such that a slight gap is formed between the white rice outlet forming member 69 and the outer peripheral protruding surface so that rice grains do not fall. Has been done.

A white rice discharge port 70 is formed on one side of the upper end portion of the lower casing 54, and a discharge chute 71 is attached to it. The rotating shaft 59 has a white rice outlet passage 69a.
A brim 72 is attached for receiving the white rice that has fallen from the guide and guiding it to an inclined chute 71 for discharging. The rotary drive shaft 73 that supports the rotary shaft 59 from below is rotatably supported by a pair of upper and lower bearings 74 mounted in the lower casing 54, and below the bearing 74, the rotary drive shaft 73 and the rotary shaft 59. A drive pulley (not shown) is provided for inputting a rotational drive force to the drive motor from a drive motor via a belt.

An opening adjusting shaft 79 is inserted into the hollow rotating shaft 59, and the lower end portion thereof is connected to the opening restricting member 65 via a connecting rod 80 penetrating an elongated hole 81 formed in the rotating shaft 59. Are combined. An upper end portion of the opening adjustment shaft 79 protrudes above the main body casing 51 and is engaged with an engaging member 84 supported on the elevating member 82 via a spring 83 so as to be relatively rotatable. The elevating member 82 is moved up and down by an elevating means (not shown), and by raising and lowering the elevating member 82, the force for urging the opening degree regulating member 65 in the direction of closing the white rice outlet passage 69a is adjusted, thereby improving the whiteness. It can be changed.

The brown rice fed into the main body casing 51 by the screw feeder device 56 is pushed into the white polishing cylinder 53 by the feed roll 60 to rotate the milled rice roll 6
A whitening process is performed between 1 and the net 67.

The bran separated by the whitening treatment is
The air introduced into the rotary shaft 59 passes through the through holes (not shown) formed in the rotary shaft 59 and the rice-polishing roll 61, and the mesh 6
It is designed to be discharged to the outside together with the air flow flowing toward the discharge port 68 of the bran through 7.

The degreased white rice is pressed down against the urging force of the spring 83 by the pressure of the brown rice pumped into the space between the net 67 of the whitening cylinder 53 and the rice mill roll 61, and the opening regulating member 65 is pushed down. Is sequentially discharged from an annular white rice outlet passage 69a between the outer periphery of the white rice outlet forming member 69 and the white rice outlet forming member 69, and is discharged to the outside from the white rice discharge port 70 through the inclined chute 71.

[0010]

However, according to the above-described conventional rice milling machine, the whitened rice is purified from the annular white rice outlet passage 69a between the outer periphery of the opening degree regulating member 65 and the white rice outlet forming member 69. Since the opening regulating member 65 is a structure that slides on the sliding contact surface between the rice bran roll 61 and the small diameter portion 61a where the rice bran is likely to enter relatively easily, And the opening control member 65
There may be a hindrance to the up-and-down movement of the rice, and in this case, there is a risk that white rice having a different degree of milling will be discharged. Furthermore, a part of the bran is used for the brim 72 and the lower casing 5.
There is also a case where the fluid flows down through a gap between the bearing 4 and the like and adheres to the bearing 74 or a driving pulley thereunder to hinder the rotational operation of the rotary shaft 59 or damage the bearing of the bearing 74. .

The opening adjustment shaft 7 penetrating the rotary shaft 59
Since it has a complicated structure such as opening and closing the opening degree control member 65 by 9, the white rice outlet passage 6
Even when trying to clean the bran in the vicinity of 9a, the parts of this part of the rice mill cannot be easily disassembled, and the entire rice mill has to be disassembled, so much labor and time are required. It was hanging.

Further, the white rice that has passed through the white rice outlet passage 69a is discharged onto the receiving collar 72 arranged at the outer peripheral position of the rotating shaft 59, and then the white rice discharge port provided on one side thereof. Since it has a structure in which it is discharged from 70 through the inclined chute 71 to the outside, when a large amount of white rice is discharged from the white rice outlet passage 69a, this white rice is provided on the flange 72 on the side opposite to the white rice discharge port 70. It may be accumulated, and the discharge from the inclined chute 71 may be poor.

Further, since the white rice discharge port 70 provided on the side surface of the lower casing 54 discharges the white rice, the inclined shoot 71 for guiding the white rice from the white rice discharge port 70 obliquely downward to guide it to the outside. However, there is also a problem in that the exit position of the inclined chute 71 where a person actually receives white rice is at a low position, which makes the operation of receiving white rice inconvenient.

The present invention solves the above problems and problems, and can prevent the movement of the opening regulating member and the rotation of the rotary shaft of the rice milling roll from being hindered, and cleans the vicinity of the white rice outlet passage. It is an object of the present invention to provide a whitening device for a rice polishing machine that can easily perform the above, can discharge white rice well even when a large amount of white rice is dispensed, and can perform a receiving operation of white rice well. It is what

[0015]

In order to solve the above-mentioned problems and problems, the present invention according to claim 1 is such that a rice polishing roll is rotatably arranged in a polishing cylinder and moves in the axial direction of the rice polishing roll. It is a whitening device of a rice polishing machine in which the opening degree of the white rice outlet passage is adjusted by an opening control member that is freely biased in a direction to reduce the opening degree of the white rice outlet passage. It is formed between the opening regulating member and the regulating member, and the white rice is discharged from the inside of the opening regulating member through the polished rice outlet passage.

With this construction, the opening regulating member is arranged outside the white rice outlet passage, and the rice milling roll and the opening regulating member do not slide. It is possible to prevent the bran from accumulating in the gap and hindering the movement operation of the opening degree restricting member. Further, the opening regulating member is arranged outside the white rice outlet passage, and it becomes possible to move the opening regulating member by engaging it from the outside. Since it is not necessary to dispose an opening adjustment shaft or the like for raising and lowering, even if a large amount of white rice is discharged from the white rice outlet passage, the white rice is satisfactorily discharged from the inside of the opening regulating member.

Further, the present invention according to claim 1, fine white barrel and rice rolls, along its longitudinal direction is in the vertical direction,
Further, the white rice outlet passage is arranged so as to be on the lower side, and the opening degree regulation member has a ring-shaped portion facing from the outer peripheral side with respect to the tip end of the rice polishing roll, and is external by a guide portion fixed to the white polishing cylinder side. It is movably held in a fitted and guided posture.

With this configuration, the opening regulating member is held well by the guide portion, and the polished white rice is directly discharged downward from the inside of the ring-shaped portion of the opening regulating member through the white rice outlet passage. Therefore, an inclined chute or the like is unnecessary, the discharge point can be set at a high position, and the operation of receiving white rice can be easily performed.

According to a second aspect of the present invention, in the whitening device for a rice polishing machine according to the first aspect , the rotary shaft to which the rice polishing roll is attached is projected upward from the whitening cylinder, and the upper side of the rotary shaft is projected. A support member for rotatably supporting the rotary shaft and a rotary drive force transmitting member for transmitting the rotary drive force from the rotary drive source to the rotary shaft side are provided in the part.

With this structure, since the supporting member for supporting the rotating shaft and the rotary driving force transmitting member for transmitting the rotary driving force from the rotary driving source are arranged above the polishing cylinder, the bran flows down to these portions. Therefore, the bran does not adhere to the bran, so that the bran does not impair the rotation operation or damage the support member.

According to a third aspect of the present invention, in the whitening device of the rice polishing machine according to the first or second aspect , the biasing force for actuating the opening regulating member in an adjustable state is provided. The adjustment mechanism is arranged on one side of the polishing cylinder, and one end of the opening regulation member is engaged with the opening regulation member from the outside through the engaging portion and the other end is engaged with the biasing force adjustment mechanism. The oscillating lever is provided, and the urging force is applied from the urging force adjusting mechanism to the opening degree regulating member via the oscillating lever.

With this structure, the opening regulating member can be easily moved by the urging force adjusting mechanism via the swing lever, and the urging force adjusting mechanism is arranged on one side of the polishing cylinder. In addition, the operation of discharging white rice does not occur at all, and the rice milling machine can be formed vertically compactly. Further, by disengaging the engagement portion from the opening degree regulating member, the opening degree regulating member can be easily removed from the rice polishing machine.

The present invention according to claim 4 provides the invention according to any one of claims 1 to 3.
In the whitening device for a rice polishing machine according to any one of 1, a window portion or a notch portion is formed in a guide portion for externally guiding the opening regulation member, and the outer periphery of the opening regulation member is passed through the window portion or the notch portion. It is constructed so that a part of the surface faces the outside.

With this configuration, even when the rice-polishing raw material enters the sliding surface between the opening degree regulating member and the guide portion, the rice-polishing raw material is discharged to the outside from the window or notch of the guide portion. Therefore, it is possible to prevent the sliding operation failure of the opening degree regulation member due to the rice milling raw material entering and clogging the sliding surface between the opening degree regulation member and the guide portion.

The present invention according to claim 5 provides the invention according to any one of claims 1 to 4.
In the whitening device for a rice polishing machine according to any one of the above, a recess is formed in the sliding surface between the opening degree regulating member and the guide portion for scraping and collecting the rice polishing raw material that has entered the sliding surface.

With this configuration, even when the rice-polishing raw material enters the sliding surface between the opening regulating member and the guide portion, the rice-polishing raw material is scraped off by the concave portion and stored. Therefore,
It is possible to prevent the sliding operation failure of the opening degree regulation member due to the rice milling raw material entering and clogging the sliding surface between the opening degree regulation member and the guide portion.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. In FIG. 1 and FIG. 2, 1 is a main body casing, which is an upper casing 2, a whitening tube 3,
The lower casing 4 is assembled by bolts in order,
In the assembled state, these axes are arranged so as to coincide with each other. A screw feeder device 6 for supplying brown rice into the main body casing 1 is connected to one side surface of the upper casing 2 and a hopper 7 for feeding brown rice is provided by a screw feeder 6a rotated by a supply motor 8.
The brown rice from No. 2 is supplied into the main body casing 1 through an opening 2a formed in one side surface of the upper casing 2.

A hollow rotating shaft 9 is arranged at the axial center of the body casing 1. A feed roll 10 for feeding brown rice to the rice milling roll 11 side below is attached to the upper part of the rotating shaft 9, and a rice milling roll 11 having a rice-polishing ridge 11a is attached to the lower part thereof, together with the rotating shaft 9 the feeding roll 10
And the rice-polishing roll 11 is adapted to rotate integrally. In addition, the feed roll 10 and the rice polishing roll 1 are attached to the rotating shaft 9.
1 is attached to the inside of the lower end of the rotary shaft 9 to attach the mounting plate 31.
The feed roll 10 and the rice-polishing roll 11 can be fixed to the rotary shaft 9 by fixing them with the fixing bolts 32.

The rotating shaft 9 is rotatably supported by a pair of supporting bearings 17 as a supporting member provided in the upper casing 2. That is, the base of the rotary shaft 9 is projected above the location of the white polishing cylinder 3 and is rotatably supported by the support bearings 17 at this portion. A drive pulley 18 is provided as a rotary drive force transmitting member that receives an input from a drive motor via a belt.

As shown in FIG. 3, a net 12 divided in the circumferential direction is provided in the milling cylinder 3 at a predetermined distance from the outer circumference of the rice polishing roll 11. The net 12 is a lower casing. 4. A net holding casing 13 which is erected on 4 and which is divided in two in the circumferential direction.
Is held by. Further, the whitening tube 3 is composed of a whitening tube support frame 3a and a whitening tube material 3b which is installed around the whitening tube support frame 3a and is bisected in the circumferential direction. A bran discharge port 14 for discharging bran generated during rice polishing is opened. Further, the rotary shaft 9 and the rice polishing roll 11 are provided with a suction hole 9a and a suction groove hole 11b for passing air sucked from the axial center of the rotary shaft 9. Further, a suction hole portion 2b for passing air is also provided in a portion of the upper casing 2 opposite to the opening portion 2a to which brown rice is supplied.

A guide portion 5 extending downward from an annular portion is formed in the lower casing 4, and an opening degree regulating member 15 and a discharge chute 16 are fitted in the guide portion 5 so as to be movable up and down. The opening degree regulation member 15 and the discharge chute 16 are each cylindrical, and a sharp edged annular portion 15a is formed on the inner periphery of the upper end portion of the opening degree regulation member 15. When the opening degree regulating member 15 is located on the upper side as shown by the solid line portion in FIG.
It is formed so as to be fitted with a slight gap so that rice grains do not drop from the outer peripheral surface of the tip of the opening, and the opening regulating member 15 is placed on the lower side as shown by the phantom line in FIG. When located, a polished rice outlet passage 26 is formed between the polished rice roll 11 and the outer peripheral surface of the tip of the polished rice roll 11 to permit discharge of polished rice. Further, the discharge chute 16 is fitted inside the opening regulating member 15 so as to extend below the projecting edge annular portion 15 a of the opening regulating member 15, and the white rice outlet passage 26
The white rice that has come out of is discharged from the inside of the discharge chute 16.

The projecting edge annular portion 15 of the opening regulating member 15
The portion where a is formed is formed of an inclined surface whose upper surface side inclines downward as it goes inward, and the white rice that has come out of the white rice outlet passage 26 is favorably guided to the inside of the discharge chute 16. Further, as shown in FIGS. 4 and 5, cutout portions 5c are formed at a plurality of positions in the circumferential direction in the lower portion of the guide portion 5 where the opening degree regulating member 15 is fitted, and the cutout portions 5c are formed. In the formed portion, a part of the outer peripheral surface of the opening degree regulation member 15 is exposed to the outside through the cutout portion 5c. Further, on each sliding surface of the guide portion 5 and the opening degree regulating member 15, there are provided recesses 5a at a plurality of locations,
15b is formed, and even if the bran enters these sliding surfaces, the bran is scraped off at the corners of the recesses 5a, 15b and collected in the recesses 5a, 15b. That is, the opening degree regulating member 15 is held by the inner surface upper portion 5d of the guide portion 5 and the plurality of convex portions 5e provided on the lower portion of the inner surface.

As shown in FIG. 4, the opening restricting member 15 and the discharge chute 16 can be moved up and down by a swing lever 20 via an insertion pin 19 as an engaging portion which is inserted in the lateral direction. Has been done. The swing lever 20 is configured to swing up and down about a swing support pin 21 that is inserted in a hanging support portion 4a provided on one side of the lower surface of the lower casing 4. The insertion pin 19 is engaged with the elongated hole 20a formed at one end. The insertion pin 19 is also fitted in a guide groove 5b formed so as to extend vertically in the guide portion 5, and is vertically movable while being guided by the guide groove 5b. Also,
A retaining member 29 (see FIG. 4) is detachably attached to both ends of the insertion pin 19.

The other end of the rocking lever 20 is engaged with a lower end portion of a spring 22 as a biasing means provided in the biasing force adjusting mechanism 21 via a washer 23. Biasing force adjustment mechanism 21
Then, the gear shaft 24 rotates the screw shaft 25, and the elevating block 27 that is screwed onto the screw shaft 25 and abuts on the upper end of the spring 22 is moved up and down. By the lifting operation of the lifting block 27, the biasing force of the spring 22 that pushes the other end of the rocking lever 20 downward, that is, the opening regulation member 15 is applied to reduce the opening of the white rice outlet passage 26. By adjusting the biasing force, the degree of whitening can be changed.
These urging force adjusting mechanisms 21 are attached to a support frame 28 fixed to one side of the white polishing cylinder 3.

The brown rice fed into the main body casing 1 by the screw feeder device 6 is pushed into the white polishing cylinder 3 by the feed roll 10 and whitened between the rotating rice polishing roll 11 and the net 12. In the bran separated by the whitening treatment, the air introduced into the rotary shaft 9 passes through the rotary shaft 9 and the suction holes 9a and the suction groove holes 11b formed in the rice polishing roll 11 to pass through the net 12. Through the bran outlet 1
It is discharged to the outside together with the air flow flowing toward 4.

The whitened rice that has been polished is pressed against the urging force of the spring 22 by the pressure of the brown rice that has been pressure-fed into the space between the net 12 of the whitening cylinder 3 and the rice-polish roll 11, and the opening control member 15 is pushed down. Are sequentially discharged from the annular white rice outlet passage 26 between the protruding edge annular portion 15a and the outer peripheral surface of the lower end of the rice polishing roll 11, and are discharged from the inside of the discharge chute 16 to the outside.

As described above, since the white rice outlet passage 26 is formed between the rice polishing roll 11 and the opening regulating member 15 and the discharge chute 16, the rice polishing roll 11 and the opening regulating member 15 do not slide, so As described above, the bran will not be accumulated in the gap between them and the movement of the opening degree regulation member 15 will not be hindered.

Further, for example, the opening regulating member 15 and the guide portion 5
Even when a bran enters between the guide part 5 and the braid, the bran is discharged to the outside from the notch part 5c of the guide part 5, or the concave parts 5a and 15b formed on the sliding surfaces of the guide part 5 and the opening degree regulating member 15
It is scraped off at the corners of the and is accumulated in the recesses 5a and 15b. Therefore, it is prevented that the bran enters the sliding surface between the opening degree regulating member 15 and the guide portion 5 and is clogged, and the sliding operation failure of the opening degree regulating member 15 due to the clogging may occur. Absent.

Even when the bran in the vicinity of the white rice outlet passage 26 is to be cleaned, the opening degree can be simply opened by removing the retaining member 29 from the insertion pin 19 and pulling out the insertion pin 19 from the swing lever 20. Since the restricting member 15 and the discharge chute 16 can be easily removed, the sliding surfaces of the guide portion 5 and the opening restricting member 15 and the recesses 5a and 15b.
Cleaning such as can be done very easily and work efficiency is good. Further, by loosening the fixing bolt 32 at the lower end of the rotary shaft 9 and removing the mounting plate 31, the feed roll 10 and the rice polishing roll 11 can be easily removed from the rotary shaft 9.

Further, the support bearing 17 and the drive pulley 1
Since 8 is arranged on the upper part of the rotating shaft 9, the bran does not flow down and adhere to these parts as in the conventional case.
It does not hinder the rotation operation of the rotary shaft 9 or damage the support bearing 17.

The white rice discharged into the white rice outlet passage 26 has a discharge chute 16 fitted inside the opening regulating member 15.
Since the structure is such that the discharged white rice is directly discharged downward, and there is no place where the discharged white rice accumulates, the white rice is discharged from the inside of the discharge chute 16 even if a large amount of white rice is discharged from the white rice outlet passage 26. In addition to being satisfactorily discharged, the discharge point from the discharge chute 16 can be set to a relatively high position, and the operation of receiving white rice can be performed easily, improving convenience.

Further, an urging force adjusting mechanism 21 which requires a relatively large space for arrangement is arranged on one side of the whitening cylinder 3 and is rocked so that the opening regulating member 15 is engaged with the insertion pin 19 from the outside. Since the lever 20 is provided and the urging force adjusting mechanism 21 applies the urging force to the opening degree regulating member 15 via the swing lever 20, the structure is simple, but there is no hindrance to the operation of discharging white rice. Without causing
The rice milling machine can be relatively compact in the vertical direction.

In the above embodiment, the case in which the discharge chute 16 is fitted inside the opening regulating member 15 to facilitate cleaning or the like has been described, but the present invention is not limited to this. Alternatively, the opening regulating member 15 may be configured to directly guide and discharge the white rice. Further, in the above-described embodiment, the notch 5c is formed in the guide member 5.
However, instead of this, as shown in FIG. 6, a window 5f is formed in the guide member 5, and the window 5f is formed.
A part of the outer peripheral surface of the opening degree regulating member 15 may be exposed to the outside through f, and this also allows the bran that has entered the sliding surface between the opening degree regulating member 15 and the guide portion 5 to guide. The opening control member 15 is discharged to the outside through the window 5f of the portion 5.
It is possible to prevent the sliding operation failure of the opening degree regulating member 15 due to the bran penetrating into the sliding surface between the guide portion 5 and the guide portion 5 to be clogged.

[0044]

As described above, according to the present invention, the white rice outlet passage is formed between the milled rice roll and the opening regulating member, and the white rice is discharged from the inside of the opening regulating member through the white rice outlet passage. This prevents bran from accumulating in the gap between the rice milling roll and the opening degree regulating member and obstructing the movement of the opening degree regulating member as in the conventional case. Further, the opening regulating member is arranged outside the white rice outlet passage, and it becomes possible to move the opening regulating member by engaging it from the outside. Since it is not necessary to dispose an opening adjustment shaft or the like for raising and lowering, even if a large amount of white rice is discharged from the white rice outlet passage, the white rice is satisfactorily discharged from the inside of the opening regulating member.

Further, the milling cylinder and the milled rice roll are arranged such that the longitudinal direction thereof is along the vertical direction and the milled rice outlet passage is on the lower side, and the opening regulating member is provided around the tip of the milled rice roll. The opening regulating member is formed so as to have a ring-shaped portion facing from the side, and the opening regulating member is slidably held in a posture in which the opening regulating member is externally fitted by a guide portion fixed to the polishing cylinder side. As a result, the sloping chute and the like are not required, and the discharging place can be set to a high place, so that the receiving operation of the white rice can be easily performed and the workability is improved.

Further, the rotary shaft is made to project upward from the polishing cylinder, and a supporting member for rotatably supporting the rotary shaft and a rotary drive for transmitting the rotary drive force from the rotary drive source to the protruding upper side portion of the rotary shaft. By providing the force transmitting member, the bran is prevented from adhering to the supporting member and the rotational driving force transmitting member, and thus the defective brazing operation and the damage to the supporting member are not caused by the adhering bran.

Further, a swingable swing lever is provided which is engaged with the opening regulating member from the outside via an engaging portion, and the biasing force is adjusted to the opening regulating member via the swing lever. By arranging the urging force adjusting mechanism to be actuated on one side of the whitening cylinder, the rice polishing machine can be compactly formed in the vertical direction, and the engaging portion can be disengaged from the opening regulating member. Thus, the opening degree regulation member can be easily removed from the rice polishing machine, and cleaning or the like can be easily performed.

Further, a window portion or a notch portion is formed in a guide portion for externally fitting and guiding the opening degree regulating member, and a part of the outer peripheral surface of the opening degree regulating member is exposed to the outside through the window portion or the notch portion. The opening regulation member and the guide portion are formed by forming a concave portion on the sliding surface between the opening regulation member and the guide portion to scrape and store the rice milling material that has entered the sliding surface. It is possible to prevent the sliding operation failure of the opening degree regulating member due to the rice milling raw material entering and clogging the sliding surface of and.

[Brief description of drawings]

FIG. 1 is a partial vertical sectional front view of a whitening device of a rice polishing machine according to an embodiment of the present invention.

FIG. 2 is a partially vertical enlarged front view of a whitening device of the rice polishing machine.

FIG. 3 is a plan view seen from a line III-III in FIG.

FIG. 4 is a bottom view seen from the line IV-IV in FIG.

FIG. 5 is a perspective view of a guide member of the whitening device as seen obliquely from below.

FIG. 6 is a perspective view of a guide member of a whitening device of a rice polishing machine according to another embodiment of the present invention as viewed obliquely from below.

FIG. 7 is a partial vertical sectional front view of a whitening device of a conventional rice milling machine.

[Explanation of symbols]

3 white barrel 4 Lower casing 5 Guide section 5a, 15b recess 5c Notch 5d inner upper part 5e convex part 5f window 9 rotation axis 11 Rice mill roll 12 nets 15 Opening restriction member 15a Edge ring part 16 discharge chute 17 Support bearings (support members) 18 Drive pulley (rotational driving force transmission member) 19 Insertion pin (engagement part) 20 Swing lever 21 Biasing force adjustment mechanism 26 White rice exit passage

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-53-22065 (JP, A) Actual development Shou 63-173338 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) B02B 7/02

Claims (5)

(57) [Claims] 1. A polished rice roll is rotatably disposed in a polished mill, and is moved by an opening regulating member that is movable in the axial direction of the polished roll and is biased in a direction to reduce the opening of a polished rice outlet passage. A whitening device for a rice milling machine in which the opening of an outlet passage is adjusted, wherein a white rice outlet passage is formed between a rice polishing roll and an opening regulating member, and the white rice is inside the opening regulating member via the white rice outlet passage. discharged from, pearled tube and rice rolls, in the longitudinal direction of the vertical direction
Arranged alongside and with the white rice exit passage on the lower side
The opening regulation member is located around the tip of the rice polishing roll.
It has a ring-shaped part facing from the side and is fixed to the white polishing tube side
Moved in the posture guided by being fitted by the guide part
A whitening device for a rice mill that can be held freely . 2. A rotary shaft to which a rice polishing roll is attached is projected upward from a whitening cylinder, and a support member for rotatably supporting the rotary shaft on a protruding upper side portion of the rotary shaft and a rotary drive from a rotary drive source. The whitening device for a rice polishing machine according to claim 1 , further comprising a rotary driving force transmission member that transmits a force to the rotary shaft side. 3. An urging force adjusting mechanism for actuating the urging force on the opening regulating member in an adjustable state is arranged on one side of the polishing cylinder, and an engaging portion is provided to the opening regulating member from the outside. A swingable swing lever is provided, one end of which is engaged with the other end and the other end of which is engaged with the biasing force adjusting mechanism, through which the biasing force adjusting mechanism applies a biasing force to the opening regulating member. The whitening device of the rice polishing machine according to claim 1 or 2 . 4. A window portion or a notch portion is formed in a guide portion that fits and guides the opening degree regulation member, and a part of an outer peripheral surface of the opening degree regulation member faces the outside through the window portion or the notch portion. A whitening device for a rice polishing machine according to any one of claims 1 to 5 , which is configured as described above. 5. The sliding surface between the opening regulating member and the guide portion,
Milling apparatus rice mill according to any one of claims 1 to 4, forming a recess for storing and scraped off the rice raw material has entered this sliding surface.