JPH11165082A - Continuous rice milling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a continuous rice milling device which returns the half-polished rice generated in an initial period of feeding and mills this rice again when the unpolished rice carried in by a customer is fed into the continuous rice milling device and the continuous rice milling device is started and which circulates milled rice and discharges the same without allowing the milled rice to remain in the device at the time of ending the rice milling. SOLUTION: The rice milling machine N is provided with a rice returning damper 30 in succession to its milled rice discharge port 31. This rice returning damper 30 is connected to a lower receiving port 22 of a lifting machine 2 through a rice returning chute 34. The half-polished rice generated at the time of starting the rice milling is returned to a milled rice tank through the rice returning chute and the lifting machine by opening the rice returning damper. At the time of treating the residual rice, the residual rice in the rice milling machine N is returned to the milled rice tank 3 through the rice returning chute 34 and the lifting machine 2 by opening the rice returning damper 30 and is passed again through the rice milling machine N, by which the whiteness of the milled rice of rice milling discharged therefrom is maintained uniformly. The milled rice discharge port of the rice milling machine N is provided with a resistance plate and the whiteness of the milled rice is regulated by varying the pressurization of a resistance spring by a linear motor 50 and a whiteness regulating motor 49. At the time of treating the residual rice, the milled rice remaining in the rice milling machine N is discharged by opening the resistance plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rental type unattended rice mill. In this type of apparatus, when a customer pays a fee and puts his own brown rice into the rice milling apparatus, the rice is automatically milled, and the brown rice comes out as white rice.

[0002]

However, immediately after the start of the rice milling operation, the rice milling section is empty and the pressure has not risen, so that sufficient rice cannot be milled and the put brown rice comes out as brown rice. is there. At the end of the operation, some rice may remain inside the apparatus and cannot be completely recovered. An object of the present invention is to improve this point, and to make white rice immediately after the operation, and to leave no rice in the apparatus at the end of rice polishing.

[0003]

According to the first aspect of the present invention, a crusher tank, a crusher, a lifting machine, a milling tank, and a milling machine are connected in this order, and the milling outlet of the milling machine is connected to a rice returning damper. It is switchably connected to the white rice take-out side or the lower receiving side of the elevator through the switch. Then, the rice discharge outlet is connected to the lower receiving side of the elevator by a rice return damper for a certain period of time after the start of the rice milling operation, and the rice at the rice discharge outlet is returned from the elevator to the rice mill via the rice mill tank. According to the second aspect of the present invention, the crusher tank, the crusher, the elevator, the milling tank and the milling machine are connected in this order, and the milling outlet of the milling machine is connected to the milled rice outlet or the milling machine via the rice return damper. Is connected to the lower receptacle side of the rice hopper so as to be switchable, and a tank lower limit switch for detecting rice is provided in the rice polishing tank. Then, after turning off the rice detection output of the tank lower limit switch, the rice return outlet is connected to the lower receiving side of the elevator by the rice return damper for a certain period of time, and the rice at the rice discharge outlet is returned from the elevator to the rice mill via the rice mill tank. I do.

According to a third aspect of the present invention, a resistance plate which is variable in pressure by a whiteness adjusting motor is provided at a white rice discharge port of the rice mill of the second aspect of the present invention, and the rice is returned for a certain time after the rice detection output of a tank lower limit switch is turned off. The rice mill outlet is connected to the lower receiving side of the elevator by the damper, and the resistance plate is opened by the whiteness adjustment motor, and the rice at the rice mill outlet is returned from the elevator to the rice mill via the milling tank. . According to the fourth aspect of the present invention, an air blowing outlet is opened in the milling roll of the rice mill of the first, second or third aspect of the present invention, and air is blown into the milling chamber by a pressure-feed fan, and the milling machine is repeatedly stopped for several seconds. hand,
The remaining rice remaining in the milling room is discharged to the white rice outlet. According to a fifth aspect of the present invention, a rotary cutter is provided at the bottom of the tank for removing a stone, and the rotary shutter is variably rotated by a motor to adjust the discharge flow rate. It is characterized by the following.

[0005]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of the entire continuous rice polishing apparatus of the present invention, showing a state during rice polishing operation. The continuous rice milling device includes a quarrying tank 1, a quarrying machine M, a lift 2, and a milling tank 3.
And the rice mill N are connected in order. These control the operation according to a control program (shown in a flowchart in FIG. 8) of a control operation panel (not shown). The quarrying machine M is composed of a quarrying machine tank 1 also serving as a setting hopper, a sorting wire net 4,
A stone cutter rotary shutter 7 is provided at the bottom of the stone cutter tank 1, comprising a windmill box 5 and a swing mechanism 6. Due to the rotation of the rotary excavator rotary shutter 7, even if the brown rice R is wet and difficult to flow, a certain amount of brown rice R can be forcibly dropped into the sorting wire net 4. A sorting wire net 4 is disposed at a lower angle below the rotary cutter 7 of the crusher, and a windmill box 5 having a windmill 8 is integrally mounted below the sorting wire mesh 4. Move. As shown in FIG. 3, the sorting wire net 4 has a large number of ventilation holes 9 cut and raised on the bottom surface and opened rearward by tongue pieces, and a brown rice discharge port 10 is provided in front of the holes. Side plates 11a, 11b on the left and right of the sorting wire net 4.
And the interval between them is narrowed in a triangular shape behind the sorting wire net 4 to form a stone gathering portion 12, and a stone grain discharging shutter 13 is provided at the bottom of the innermost portion of the stone gathering portion 12 with a stone grain discharging shutter 13 that can be opened and closed. The outlet 14 is opened. As shown in FIG. 1, a stone outlet 15 having a funnel-shaped upper portion is provided below the stone outlet 14, and a stone receiving box 16 is arranged below the stone outlet 15.
Adjacent to one side plate 11b of the sorting wire net 4, the sorting wire mesh 4
A remaining rice discharge wire net 17 inclined in the same direction as above is provided, and a remaining rice outlet 8 is formed at the front end thereof to join the brown rice discharge port 10. A large number of ventilation holes 9 cut and raised on the bottom surface and opened forward by tongue pieces are formed in the remaining rice discharging wire netting 17. A guide plate 19 is erected on the other side of the remaining rice discharging wire mesh 17, and the guide plate 19 aligns the rear end of the remaining rice discharging wire mesh 17 with the stone gathering portion 12 of the sorting wire mesh 4 and integrally surrounds the same. And the stone gathering part 12
The remaining rice take-out opening 20 is opened in the side plate 11b to be viewed, and the sorting wire mesh 4 side communicates with the remaining rice discharging wire mesh 17 side. Remaining rice outlet 2
At 0, a remaining rice discharging shutter 21 is provided.

A lower receiving port 22 of the elevator 2 is disposed below the brown rice outlet 10 of the sorting wire net 4, and an upper outlet 23 of the elevator 2 is provided.
Is connected to the milling tank 3 of the milling machine N. A tank lower limit switch 24 for detecting the presence or absence of brown rice R is provided in the rice polishing tank 3.
And a tank upper limit switch 25 for detecting that the rice polishing tank 3 is full. The lower part of the rice polishing tank 3 is shaped like a hopper,
A milling room 52 is provided below the milling tank 3, and the milling tank 3
Is connected to one end of the milling chamber 52, and the tip of the milling chamber 52 is inclined downward. A suction fan 26 for collecting bran and a pumping fan 28 are provided below the milling room 52, and the suction fan 26 is connected to the front of the milling room 52 via a bran collecting net 27 (see FIG. 3) and a bran collecting duct 43. Then, the pressure-feeding fan 28 is connected to the lower surface of the milling room 52 by the blower tube 42. Miling room 5
2, a resistance plate 29 and a rice return damper 30 are provided at the tip, and a white rice discharge port 31 is provided in front of the rice return damper 30, and the polished rice discharged from the milling room 52 to the rice return damper 30 is removed from the white rice discharge port 31 through a machine. It is taken out and stored in the white rice storage box 32.
FIG. 2 shows a white rice returning state by the rice returning damper 30. The rice returning damper 30 is provided with an opening / closing motor 33, and the rice returning damper 30 is rotated and opened by the opening / closing motor 33, and
Semi-polished rice or polished rice discharged from 2
4 returns to the lower receptacle 22 of the elevator 2 and again
To the rice milling tank 3.

FIG. 4 is an enlarged cross-sectional view of a main part of the rice milling machine N, showing a continuous rice polishing state, and FIG. 5 shows a residual rice discharging state. The milling machine N is an inclined type in which the tip of the milling cylinder 36 is lower. The milling room 52 is composed of a hollow milling roll 35 and a milling cylinder 36 that covers the outer periphery thereof, and is arranged below the milling tank 3. A refining roll 35 is rotatably supported on the center axis of the refining cylinder 36, and a drive pulley 37 is mounted on the upper end thereof, and connected to a separately provided electric motor (not shown) via a belt. As shown in FIGS. 6 and 7, a ventilation hole 38 is formed on the upper side of the whitening roll 35 inside the whitening roll 35, and a grain feeding spiral 39 is formed on the outer periphery. A plurality of polishing ridges 40 extending inclining in the axial direction are provided below the polishing roll 35, and a wind outlet 41 is provided along the polishing ridges 40. Air is sent from the pressure-feeding fan 28 to the upper part of the whitening cylinder 36 through the blower pipe 42 and blown out from the air outlet 41 through the ventilation holes 38 of the whitening roll 35 to promote the discharge of the rice in the whitening cylinder 36. A bran collecting net 27 is formed below the lower part of the polishing cylinder 36, a bran collecting duct 43 is provided closely below the bran collecting net 27, and a suction fan 26 is provided at a lower end of the bran collecting duct 43. Milling cylinder 3
6 is provided with a milled rice outlet 44, and the milled rice outlet 44 is provided with a resistance plate 29 for opening and closing the milled rice outlet 44. The resistance plate 29 is fixed to one end of the main resistance support 45, and the main resistance support 45 is rotatably supported at its center by a fulcrum shaft 46.
The other end of the main resistance support rod 44 is supported by a resistance spring 47 and biases the rice discharge port 44 in a closing direction. The resistance spring 47 is a resistance fitting 4 fixed to the end of the linear 50.
8 and the linear plate 50 reciprocated by the whiteness adjusting motor 49 compresses or loosens the resistance spring 47 to adjust its spring pressure and press the rice discharge port 44.
By changing the pressing force of No. 9, the whiteness of the milled rice to be discharged is adjusted to a predetermined whiteness.

The brown rice R which has fallen from the milling tank 3 into the milling room 52 is sequentially sent out into the milling cylinder 36 by the rotation of the milling roll 35 by the grain feeding spiral 39, and the milling ridges 40 and the milling cylinder 36 of the milling roll 35. Milled in between, the leading rice mill outlet 4
4 and the rice discharge port 44 against the pressing of the resistance plate 29.
Discharged from Thus, at the start of the milling, the milling room 52 is not filled with brown rice and the friction of the brown rice grains is incomplete, so that brown rice or semi-milled rice is discharged from the milled rice outlet 44. At this time, the rice return damper 34 is opened by the opening / closing motor 33, and the half-milled rice or the like is dropped by the rice return damper 34 through the rice return chute 34 into the lower receptacle 22 of the elevator 2, returned to the rice polishing tank 3, and whitened again. Thereby, the rice is polished to a predetermined whiteness. When the rice polishing operation is completed and the rice polishing tank 3 is emptied and the tank lower limit switch 24 is turned off, the process proceeds to the residual rice discharging process. As shown in FIG.
Is moved in the direction B to release the resistance spring 47, and the main resistance support rod 4 is moved by the remaining rice discharging metal fitting 51 fixed to the liner 50.
5 is rotated about a fulcrum shaft 46 to separate the resistance plate 29 from the milled rice outlet 44, thereby opening the milled rice outlet 44.
At the same time, the rice return damper 30 is closed by the open / close motor 33,
All the remaining rice is discharged outside the machine from the white rice discharge port 31.

FIGS. 8 to 11 are flowcharts showing the control procedure of the apparatus of the present invention. On the display panel of the control panel, turn on or off the indicator lights in accordance with the flowchart,
Displays the operating procedure and progress. The control procedure is as follows: Step 1 Pay the fee and put the brown rice R into the destoner tank 1. Step 2 The whiteness of the polished rice is displayed by selecting one of "Upper white", "Upper white", and "Seven minutes" using the whiteness selection button. Step 3 Turn ON the start button to start automatic operation. First, the destoner M and the elevator 2 start operating. Step 4 Subsequently, the rotary shutter 7 for the stone excavator is rotated to drop a certain amount of brown rice R from the stone excavator tank 1 into the sorting wire net 4. The supply speed of the brown rice R can be adjusted by changing the rotation speed of the stone cutter rotary shutter 7. Step 5 The brown rice R that has fallen into the sorting wire net 4 removes stones and other foreign matter by swinging the sorting wire mesh 4 and blowing by the windmill 8, and falls from the brown rice outlet 10 to the lower receiving port 22 of the elevator 2, and the lift 2 To put it into the rice polishing tank 3 of the rice polishing machine N. Step 6 When the tank lower limit switch 24 is turned ON by the brown rice R put into the rice polishing tank 3, the rice polishing machine N
Operation starts. Step 7 When the milled rice tank 3 is full of brown rice, the tank upper limit switch 25 is operated to stop the stone mill rotary shutter 7 to stop the flow of the brown rice into the stone mill M, and to prevent the brown rice from overflowing from the milled rice tank 3. prevent.

Step 8 The polished rice whitened by the rice mill N is discharged to the rice return damper 30. When the polished rice reaches a predetermined discharge pressure at the polished rice discharge port 44, the resistance plate 29 is pushed and expanded against the pressing of the resistance plate 29, and the polished rice is pushed out onto the rice return damper 30. Step 9 The brown rice or semi-polished rice mixed with the polished rice discharged for about 5 to 6 seconds initially does not reach the predetermined polished whiteness, so the opening / closing motor 33 is driven to open the rice return damper 30 and the rice return shoot. 34, the lower receiving port 22 of the elevator 2
And returned to the rice mill tank 3 by the elevator 2.

Step 10 In this state, after about 10 seconds have elapsed, the rice return damper 30 is closed by the open / close motor 33,
The polished rice is discharged outside the machine through the rice return damper 30 and stored in the white rice storage box 32 outside the machine. Step 11 15 after turning on the start button
After a lapse of more than a second, the tank lower limit switch 24 of the rice polishing tank 3
When is turned "OFF", the process proceeds to residual rice processing. Step 12 The destoner rotary shutter 7 is stopped, the subsequent introduction of brown rice R is stopped, and the operation of the destoner M is continued. Step 13 The rice mill N, the suction fan 26 and the pressure feeding fan 28 are stopped, and the rice return damper 30 is
open. Step 14 The operation of the stone crusher M is continued, and the stone discharge shutter 13 is opened for about 3 seconds.
The remaining stones are collected in the stone receiving box 16 through the stone outlet 15 from the stone outlet 14 and the stone outlet shutter 13 is closed. Even if the destoner tank 1 is emptied and the supply of the brown rice R is completed, the brown rice R and the stone grains remain on the sorting wire net 4 for almost 70% of the net area. Step 15 The remaining rice discharging shutter 21 is opened for about 30 seconds, the brown rice R remaining on the sorting wire net 4 is transferred to the remaining rice discharging wire mesh 17, and falls from the brown rice discharging port 10 to the lower receiving port 22 of the elevator 2 to discharge the remaining rice. The shutter 21 is closed, the stone discharge shutter 13 is opened again for 3 seconds, and the remaining stone is discharged. After that, the stone removing machine M is stopped. Step 16 Next, the rice mill N is operated for about 15 seconds,
The white rice in the middle is returned to the rice polishing tank 3 through the rice return damper 30, the rice return chute 34, and the elevator 2. Step 17 Next, the liner 50 is moved in the direction B by the whiteness adjusting motor 49, and the main resistance support rod 45 is rotated about the fulcrum shaft 46 by the remaining rice discharging metal fitting 51 to open the resistance plate 29. At the same time, the rice return damper 30 is closed by the open / close motor 33. The rice polishing machine N is operated for about 10 seconds, and the remaining rice is discharged from the white rice discharge port 31 to the outside and collected in the white rice storage box 32. Step 18 Further, in this state, the whitening roll 35 is
Rotating for 2 seconds and stopping for 1 to 2 seconds are repeated two or three times, and at the same time, air is blown out between the whitening roll 35 and the whitening cylinder 36 by the pressure-feeding fan 28, and the remaining rice remaining in the air outlet 41 is completely discharged. Step 19 The pumping fan 28 and the rice mill N are stopped.
Next, the liner 50 is returned to the direction A by the gear motor 49 to adjust the whiteness of the polished rice to "upper white", and the lighting of the upper white lamp provided on the control panel is confirmed.

[0012]

As described above, in the present invention, semi-milled rice generated at the start of milling and residual rice remaining in the milling machine N at the end of milling are removed by the milling damper 30 through the milling chute 34 and the elevator 2. By returning to the rice polishing tank 3 and circulating again, it is possible to finish the rice with a predetermined whiteness from the beginning to the end. Further, by adjusting the pressing force of the resistance spring 47 of the resistance plate 29 by the gear motor 49 and the linear 50, a predetermined whiteness of the polished rice can be easily set, and the polished white rice having a stable polished whiteness can be discharged. Further, by providing an air blowing outlet 41 to the milling roll 35 of the milling machine N to blow air into the milling chamber 52 and intermittently rotating the milling roll 35 at regular intervals, the remaining rice can be discharged without leaving. In addition, a destoner rotary shutter 7 is provided at the bottom of the destoner tank 1 of the destoner M, and a certain amount of the introduced brown rice R is taken into the destoner M irrespective of its wetness and dryness. You can mill rice.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a configuration of a continuous rice polishing apparatus of the present invention.
Indicates continuous rice polishing.

FIG. 2 is a cross-sectional view showing the configuration of the continuous rice polishing apparatus of the present invention.
The state of white rice returned by the return damper is shown.

FIG. 3 is a plan view of a sorting wire mesh of the stone cutter.

FIG. 4 is an enlarged sectional view of a main part of the rice mill, showing a continuous rice polishing state.

FIG. 5 is an enlarged sectional view of a main part of the rice mill, showing a state of residual rice discharge.

FIG. 6 is a side view of a polishing roll.

FIG. 7 is a sectional view of the same.

FIG. 8

FIG. 11 is a flowchart showing the operation of the continuous rice mill of the present invention.

[Explanation of symbols]

 M Stone extractor N Rice mill R Brown rice 1 Stone extractor tank 2 Elevator 3 Rice mill tank 4 Sorting wire mesh 5 Windmill box 6 Rocking mechanism 7 Stone extractor rotary shutter 8 Windmill 9 Ventilation pore 10 Brown rice outlet 11 Side plate 12 Stone crusher 13 Stone Particle discharging shutter 14 Stone discharging port 15 Stone discharging port 16 Stone receiving box 17 Remaining rice discharging wire mesh 18 Remaining rice discharging port 19 Guide plate 20 Remaining rice discharging port 21 Remaining rice discharging shutter 22 Lower receiving port 23 Upper outlet port 24 Tank lower limit switch 25 Tank upper limit switch 26 Suction fan 27 Bran net 28 Pressure feeding fan 29 Resistor plate 30 Rice return damper 31 White rice discharge port 32 White rice storage box 33 Opening / closing motor 34 Rice return chute 35 White roll 36 Fine white cylinder 37 Drive pulley 38 Ventilation hole 39 Send Grain spiral 40 Refined ridge 41 Wind outlet 42 Blower tube 43 Haruka duct 44 Rice removal Mouth 45 main resistance 支杆 46 fulcrum shaft 47 resistance spring 48 resistance bracket 49 whiteness adjusting motor 50 linear 51 remaining rice discharge fitting 52 pearling chamber

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomohiro Sakashita 2nd Wakasugi, Kamiichi-gun, Nakashinagawa-gun, Toyama Prefecture Marumas Machinery Co., Ltd. (72) Nobuhide Kobayashi 5212 Koike, Tsubame-shi, Niigata 3 Marumas Machinery Corporation Niigata Inside the factory (72) Inventor Yuichi Haruki 2 Wakasugi, Kamiichi-cho, Nakashinkawa-gun, Toyama Marumas Machinery Co., Ltd.

Claims (5)

[Claims] 1. A crusher tank, a crusher, a lift, a rice mill tank and a rice mill are connected in this order, and a rice discharge outlet of the rice mill is connected to a rice mill exit side or a lower part of the elevator by a rice return damper. Connect to the receiving port freely, connect the rice discharging outlet to the lower receiving side of the elevator by the rice return damper for a certain time after the rice milling operation starts, return the rice from the rice discharging outlet to the rice milling machine via the milling tank from the elevator A continuous rice milling device characterized by the following. 2. A quarrying machine tank, a quarrying machine, a lifting machine, a rice milling tank and a rice milling machine are connected in this order, and the rice milling outlet of the rice milling machine is connected to a rice mill exit side or a lower part of the elevator by a rice return damper. Switchable connection to the receiving port side, and a rice lower limit switch for detecting rice in the rice polishing tank is provided.Rice return damper moves the rice polishing outlet to the lower receiving port of the elevator for a certain period after turning off the rice detection output of the tank lower limit switch. A continuous rice milling machine that connects and returns the rice from the rice mill outlet to the rice milling machine via the milling tank from the elevator. 3. A destoner tank, a destoner, a lift, a rice mill tank and a rice mill are connected in this order, and the rice discharge outlet of the rice mill is connected to a white rice outlet side or a lower part of the elevator by a rice return damper. Switchable connection to the receiving port side, and a rice lower limit switch for detecting rice in the rice milling tank is provided, and a resistance plate with a variable pressing force by a whiteness adjustment motor is provided at the white rice discharge port of the rice polishing machine. After the rice detection output of the switch is turned off, the rice return outlet is connected to the lower receiving side of the elevator by the rice return damper for a certain period of time, and the resistance plate is opened by the whiteness adjustment motor, and the rice at the rice discharge outlet is milled from the elevator by the rice mill. Continuous rice milling machine that returns to the rice milling machine through 4. An air blowing outlet is opened in a milling roll of the rice mill, and a blower is blown into the milling room by a pressure-feeding fan, and the operation of the rice mill is repeated alternately for several seconds to remove residual rice remaining in the milling room. Claims 1 and 2 that are discharged to a white rice discharge port
Or the continuous rice milling apparatus according to 3. 5. The destoner rotary shutter is provided at the bottom of the destoner tank, and the discharge flow rate is adjusted by variably rotating the destoner rotary shutter by driving a motor. A continuous rice milling apparatus as described.