JP2007117858A - Automatic rice polishing treatment apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an automatic rice polishing treatment system by which the problem at an initial operation stage such as idling charging and inefficient initial circulation treatment can be solved by simple system constitution. <P>SOLUTION: The automatic rice polishing treatment system is equipped with a charging hopper 12, a delivery mechanism 12v, a gravel remover 14, a rice polishing machine 15 and a controlling part for carrying out operation control of each equipment and imposing control of utilization charge for every operation hour of each equipment when utilization charge is charged. A hulled rice tank 15t capable of storing hulled rice conveyed from the gravel removing treatment process is provided at a hulled rice charging port of the rice polishing machine 15 and a hulled rice detection sensor 15b for detecting existence of the hulled rice is provided inside the hulled rice tank 15t. Imposing control of utilization charge for every operation hour of each equipment is started on condition that the hulled rice is detected by the hulled rice detection sensor 15b. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automatic rice milling apparatus that automatically performs rice milling on the brown rice of a user, and particularly relates to an automatic rice milling apparatus that can solve various problems at the time of starting the rice milling apparatus.

  As in the example of Patent Document 1, an automatic rice milling apparatus that automatically performs rice milling on the brown rice of a user that has been thrown in is a rice hopper and a rice milling process for feeding brown rice, centering on a rice milling apparatus and related equipment. It is configured with a take-out unit for taking out the polished rice, and a series of processing is automatically operated by the control unit.

The automatic operation is controlled by putting brown rice into the loading hopper, selecting a course such as the degree of whitening, and then inserting the required amount of coins by the user, so that the feeding hopper feeding device is operated for a predetermined time. By taking the brown rice for the billing unit and performing the whitening process with the rice milling device and repeating this within the range of the input amount, the input brown rice can be whitened and received from the take-out part.
Japanese Patent Laid-Open No. 1-176458

  However, the above automatic rice milling device allows simple and reliable billing processing by starting to take in brown rice by inserting coins, but if the introduction of brown rice into the input hopper is delayed, the user's It included the problem of being charged for the initial color operation due to incorrect operation.

  In addition, while the operation of the rice milling device is linked to the insertion of coins, a reliable start of operation is ensured. On the other hand, since the rice milling machine is started before the brown rice is filled, the brown rice is filled into the device. Since the initial circulation process from the start to the proper semen pressure rises takes a relatively long time, the user has been forced to wait for a long time before the milling process is completed.

  The problem to be solved is to provide an automatic rice milling apparatus that can solve problems at the initial stage of operation such as idling and inefficient initial circulation processing with a simple apparatus configuration.

  The invention relating to the automatic rice milling apparatus of claim 1 includes a feeding hopper (12) that receives the fed brown rice, a feeding mechanism (12v) that feeds the brown rice fed into the feeding hopper (12) by a predetermined amount, A stone remover (14) for separating foreign matter in the fed brown rice, a rice mill (15) for whitening the unpolished rice removed by the stone remover (14), and the feeding mechanism ( 12v), a control unit for controlling the operation of each of the above-mentioned stone remover (14), the above-mentioned rice milling machine (15) and the usage fee for each operating time of each of these machines, The brown rice inlet is provided with a brown rice tank (15t) capable of storing the brown rice transported from the stone removal process, and a brown rice presence / absence detecting sensor for detecting the presence of brown rice in the brown rice tank (15t) ( 15b), this brown rice presence inspection Wherein the detection of brown rice by the sensor (15b) on condition starts charging control of the use fee for each equipment uptime.

  The brown rice in the throwing hopper is charged at a timing when a predetermined amount of brown rice is stored in the brown rice tank in response to the operation start signal and detected by the brown rice presence / absence detection sensor.

  The invention relating to the automatic rice milling apparatus of claim 2 includes a feeding hopper (12) that receives the brown rice that has been thrown in, a feeding mechanism (12v) that feeds the brown rice thrown into the feeding hopper (12) by a predetermined amount, A stone remover (14) for separating foreign matter in the fed brown rice, a rice mill (15) for whitening the unpolished rice removed by the stone remover (14), and a whitening treatment by the rice mill (15) Of the milled rice that has been used to charge a predetermined amount of milled rice from the start of milling, and the feeding mechanism (12v), the stone remover (14), and the rice milling machine (15) when charged with a usage fee. And a control unit that performs charge control of the usage fee for each operation time of each device, and the brown rice input of the rice milling machine (15) stores brown rice conveyed from the stone removal processing step. A brown rice tank (15t) capable of The brown rice tank (15t) is provided with a brown rice presence / absence detection sensor (15b) for detecting the presence or absence of brown rice, and the operation of the rice milling machine (15) is started on the condition that brown rice is detected by the brown rice presence / absence detection sensor (15b). It is characterized by doing.

  The brown rice in the throwing hopper is stored in the brown rice tank when the feeding mechanism and the stone removal process are activated according to the operation start signal, and at the timing when it is detected by the brown rice presence / absence detection sensor, The initial circulation control is performed.

  The automatic rice milling apparatus according to claim 1 starts charging processing on condition that brown rice is detected by a brown rice presence / absence detection sensor provided in the brown rice tank of the rice milling machine. Accordingly, when the feeding mechanism and the stone removal process are operated, a predetermined amount of brown rice is stored in the brown rice tank, and charging processing for the predetermined amount of rice polishing is started at the timing when it is detected by the brown rice presence / absence detection sensor. Is done. In this way, the billing process starts when the first brown rice reaches the brown rice entrance of the rice milling machine by the operation start signal. Accurate billing processing corresponding to rice milling by the machine becomes possible.

  The automatic rice milling apparatus of claim 2 controls the operation of the rice milling machine by the initial circulation control on the condition that the brown rice is detected by the brown rice presence / absence detection sensor provided in the inner bottom part of the brown rice tank of the rice milling machine. The predetermined amount is stored in the brown rice tank when the feeding mechanism and the stone removal process are activated in response to the operation start signal, and the initial circulation control of the rice mill is detected at the timing when it is detected by the brown rice presence / absence detection sensor. Done. Accordingly, since the brown rice that has reached the brown rice entrance of the rice milling apparatus is immediately supplied to the rice mill, the initial circulation control up to a predetermined milling pressure proceeds efficiently, and the processing time for the whole process of the whitening process can be shortened.

Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings.
As shown in FIG. 1 is a layout diagram of internal equipment for a configuration example of a rice milling facility by an automatic rice milling system, and FIG. 2 is a side view of equipment in a machine room, a machine room 2 is centered in a rectangular building 1. In addition, a receiving space (operation space) 3 is arranged on the front side, and a maintenance space is formed on the rear side as a working space when the worker maintains the rice milling apparatus or the like, if necessary.

  A partition wall 11 is provided between the machine room 2 and the receiving space 3, and a charging hopper 12 for charging brown rice and a white rice tank 13 for discharging white rice are arranged facing the receiving space 3. In addition, a rice milling operation unit (operation panel) 11a is provided for specifying the degree of milling and charging a fee. In the machine room 2, a stone remover 14 connected from the charging hopper 12 via an elevator 14e and a rice mill 15 connected via an elevator 15e subsequent thereto are arranged, and the discharge side is switched to a white rice chute 16g for circulation. Connect to the white rice tank 13 as possible.

As shown in FIG. 3, the automatic rice milling system has a system configuration developed view to be taken out after a stone removing process by the charging hopper 12, the elevator 14 e and the stone remover 14, a rice milling process by the elevator 15 e and the rice mill 15, and a whitening process. The white rice tank 13 or the like constitutes a processing step, and further includes a control unit for controlling them and an operation panel for control instructions.
Although not shown in the drawing, the operation panel is provided with various operation buttons so that the milling degree can be selected from a rice milling course of five minutes, eight minutes, upper white, etc. and a non-washing rice course.

The charging hopper 12 includes a rotary valve 12v that is a feeding mechanism for feeding a predetermined amount of charged brown rice and a rotary valve sensor 12s as a charging sensor that detects the charged brown rice.
The stone elevating machine 14e receives brown rice from the rotary valve 12v, and the discharge side thereof is connected to the stone removing machine 14 via a take-out switching machine 14c. The stone remover 14 integrally forms a foreign substance removing device to separate stones and foreign substances from brown rice.

  The rice mill lift 15e includes a brown rice tank sensor 15u that discharges brown rice received from the stone remover 14 at a high position and detects brown rice on the discharge side. A brown rice tank 15t for receiving the brown rice at the entrance of the rice mill 15 and a brown rice tank lower limit sensor (brown rice presence / absence detection sensor) 15b for detecting the brown rice at the lower limit position thereof are provided. At the outlet of the rice mill 15, a switching valve 15 v that can be switched to a circulation chute 16 g is provided and connected to the white rice tank 13.

Next, the work process of the rice cleaning course and the non-washing rice course will be described respectively.
When the rice milling course is selected, the brown rice thrown into the feeding hopper 12 is fed out by the rotary valve 12v, cerealed by the lifting machine 14e for stone removal, processed by stone removal by the stone lifting machine 14, and the brown rice tank 15t by the lifting machine 15e for rice polishing. Is cerealed. Of the brown rice that is fed from the brown rice tank 15t to the milling machine 15 and polished, the milled rice having a low milling pressure at the initial stage of milling is supplied to the circulation chute 16g and charged, and when a predetermined amount is charged, the switching valve 15v is activated. The polished rice is sequentially discharged into the white rice tank 13. The charged milled rice is supplied to the milling machine 15e again after the rotary valve sensor 12s detects the absence of grain, is milled by the milling machine 15, and discharged to the milled rice tank 13.

  When the washing-free rice course is selected, the same process as in the rice milling course is performed until it is supplied to the rice milling machine 15, but all the brown rice polished by the rice milling machine 15 is supplied to the circulation chute 16g and charged. Then, after all of the brown rice in the charging hopper 12 is polished, it is supplied again to the lifting machine 15e for rice polishing, and is subjected to the second polishing process by the rice polishing machine 15 and discharged into the white rice tank 13 as unwashed rice.

(Initial billing process)
Next, operation control for the initial billing process of the automatic rice milling system will be described.
FIG. 4 is a timing chart A when the washing-free rice course is selected. The first 10 kg is the washing-free rice course, the basic fee is 100 yen + the charging fee of 100 yen per 10 kg is 200 yen, and the rice polishing course is 100 yen for every 10 kg. Since then, the washing-free rice course and the polished rice course are charged every 100 kg for 100 yen. At this time, in the example of charging the basic charge of 100 yen + 100 yen in the no-wash rice course, the rotary valve 12v, the stone remover 14, and the elevators 14e and 15e are turned on by the signal at the time t1 of the selection switch of the no-wash rice course. Unit price per operation time (100 yen in this example) that allows the set weight (every 10 kg in this example) to be refined at t2 when the basic rice tank lower limit sensor 15b is turned on while operating and withdrawing only the basic charge of 100 yen The initial billing process for starting the withdrawal process is performed. Thereafter, the set amount (100 yen) is charged for each operation time during which the set weight (10 kg) can be subjected to the whitening process.

  With the above control processing configuration, the charged unit price corresponding to the selected course is deducted on the condition that brown rice has been detected by the brown rice tank lower limit sensor 15b, so even if there is a timing delay of brown rice input to the input hopper 12 The billing corresponding to the brown rice uptake processing is possible without being affected by the idling during that time. Therefore, in the conventional initial billing process in which the billing unit price is deducted at startup, billing at the time of idling due to the timing delay of brown rice input cannot be avoided, but such inconvenience is solved, so a user-oriented system is Can be configured.

  In the example of the fee system of FIG. 4, as shown in the timing chart B of FIG. 5, the basic fee is 100 yen at t2 when the feeding mechanism is activated at the time of course selection t1 and the brown rice tank lower limit sensor 15b is turned on. A control configuration in which 200 yen is charged out of a charge of 100 yen per operating time for which whitening of +10 kg can be performed may be employed.

(Initial circulation control)
Next, start timing control of the rice milling machine in the rice milling course will be described.
As shown in the timing chart C of FIG. 6, the start timing control of the rice milling machine is such that when the user selects a course after charging a fee, the rotary valve is activated at t1, and the brown rice tank lower limit sensor 15b is turned on t2. At the same time, the rice milling machine is started, and the white rice outlet is switched to the circulation chute for the initial predetermined time Tp to perform the initial circulation operation.

  Like the conventional start control of rice milling machines, the rice milling machine is started after a predetermined time has elapsed from the course selection regardless of whether or not rice has been thrown in. When the initial circulation operation was started, since the rice milling machine was started in advance, the initial circulation time had to be long. However, the rice milling machine confirmed that the brown rice tank lower limit sensor 15b was turned on. Starting at this point and starting the initial circulation operation from this point, the amount sent to the rice milling machine can be increased in the initial stage, so that the milling pressure can be secured in a short time and the circulation chute 16g is charged. Since the amount of polished rice can be reduced, the overall processing time can be shortened.

(Sensor failure response)
Next, control when the brown rice tank lower limit sensor 15b is out of order will be described.
As shown in the timing chart D of FIG. 7, at the course selection time t1, the rotary valve 12v and the like are activated while the feeding unit sensor detects the brown rice in the feeding hopper 12, and at the time t3 when a predetermined time elapses. However, if the brown rice tank lower limit sensor 15b is still off, it is treated as a malfunction of the sensor, and the subsequent system operation time is set based on the on time Tc = t4-t1 until t4 when the input sensor 12s is turned off. Rice milling.
By controlling the operation in this way, the system can be operated by using the information of the throwing unit sensor 12s even if the brown rice tank lower limit sensor 15b is abnormal, so that the usability can be improved.

Next, control when the rotary valve sensor 12s fails will be described.
As shown in the timing chart E of FIG. 8, the rotary valve or the like is activated at the course selection time t1, and thereafter, even when the brown rice tank lower limit sensor 15b is turned on, at the time t2, the charging unit sensor 12s is still off. Treated as a sensor failure, the rotary valve 12v is stopped at every unit price at the time t5 when a predetermined time elapses by the timer 2 (for example, 70 s) corresponding to the acquisition of one unit price, and corresponds to the time t6 when the end of the milling is detected. The operation is controlled so that the processing for the next unit price is repeated.
By controlling the operation in this manner, the system can be operated by using other sensor information even if the input unit sensor 12s is abnormal.

  As another control when the rotary valve sensor 12s fails, as shown in the timing chart F of FIG. 9, the rotary valve 12v is activated at the course selection time t1, and then the brown rice tank lower limit sensor 15b is turned on. Even at the time t2, when the input sensor 12s is still off, it is treated as a failure of the sensor, and the rotary valve 12v is reached at a time t7 when a predetermined time (for example, 90 s) corresponding to the acquisition of one unit price by the timer 1 elapses. Is stopped, and the operation is controlled so as to shift to the remaining rice discharging operation in correspondence with the detection time t6 of the completion of the milling for one unit price, and then stop the system.

  In the conventional control configuration, when the input unit sensor 12s remains off, the operation is shifted to the end operation before the operation time of the rotary valve 12v for one unit price has elapsed, and the operation for the fee is not performed. By controlling the operation as described above, it is possible to prevent extra charges from being collected and to shorten the standby state by using other sensor information even if an abnormality occurs in the input unit sensor 12s.

Next, the control process according to the state of the input unit sensor will be described.
As shown in the timing chart G of FIG. 10 (a), the rotary valve or the like is activated at the course selection time t1, and at this time, if the closing sensor 12s is already on, the timer 1 (for example, 90s) is immediately subtracted. Further, as shown in the timing chart H of FIG. 10B, at the time t2 when the brown rice tank lower limit sensor 15b is turned on at the course selection time t1 and the brown rice tank lower limit sensor 15b is turned on, the throwing-in sensor 12s. When is turned off, timer 2 (for example, 70 s) starts to be subtracted. The timer is a numerical value that timer 2 is smaller than timer 1.

  By the above operation control, it is possible to solve the problem of the idling charge at the time of brown rice introduction delay, which was unavoidable in the conventional operation control in which the charge timer is started to be subtracted from the course selection time t1. In addition, by ensuring the operation of the system, it is possible to solve the problem of the conventional operation control that the operation for the specified fee cannot be performed when the abnormality of the input unit sensor 12s occurs. In this way, it is possible to deal with a wide range of loading methods while dealing with the failure of the loading unit sensor 12s.

(White rice charge tank)
Next, the white rice charge tank will be described.
When dry-type non-washing rice treatment is performed, a white rice charge tank 16t for temporarily storing white rice is provided at the exit of the rice mill 15 as shown in the front view of the rice milling unit in FIG. A motor 16m is provided above the white rice charge tank 16t, and a rotating body 16r that is rotationally driven by the motor 16m is inserted into the tank. The bridge preventing effect can be obtained by the rotating operation of the rotating body 16r.

  As shown in FIGS. 11 (b) to 11 (d), the rotating body 16r is constituted by a stirring bar 16a, a chain 16b, a spiral 16c, and the like so that white rice does not collect at the corner of the white rice charge tank 16t. Better anti-bridging effect can be obtained than the conventional anti-bridging means by the arranged reflector, and a wide range of applications for rice properties and environment is possible.

(Input hopper)
Next, the configuration of the charging hopper is described.
As shown in the perspective view of FIG. 12A, the charging hopper 12 has a power dump mechanism including a dump rack 21 for receiving cargo, a cylinder 22 for dumping operation, a door 23 of the partition wall 11 and the like at its opening. Provide. The dump rack 21 is pivotally supported on a fulcrum 21 s provided at a height position of the loading hopper 12 so as to be able to move backward from the load receiving posture angle to the loading posture angle. The cylinder 22 is connected to the dump rack 21 and is driven to tilt backward about its fulcrum 21s. The door 23 supports the partition wall 11 in a spring return manner so that the partition wall 11 can be opened as the dump rack 21 tilts backward.

  In the power dump mechanism, as shown in the operation explanatory diagrams in side views of FIGS. 12B to 12D, the dump rack 21 stands upright at the floor height position at the load receiving posture position of FIG. The unpacked rice is placed in the dump rack 21, and the extension operation of the cylinder 22 shown in FIG. Brown rice is thrown into the throwing hopper 12 by the dump rack 21 moving backwards above the throwing hopper 12 at the discharging posture position. After the brown rice is put in, it stands by at the receiving posture position shown in FIG.

  With the power dump mechanism configured as described above, when putting brown rice into the hopper, for example, even about 30 kg of brown rice, it is possible to reduce the work load for lifting such heavy objects up above the loading hopper 12, The door 23 can prevent foreign matter from entering.

(Rotary valve control)
Next, control of the rotary valve will be described.
A rotary valve 12v that feeds brown rice from the feeding hopper 12 is driven by a motor at a variable speed. A flow rate adjustment tank of the rice milling machine has a brown rice detection sensor at an upper limit position and a lower limit position, and two confirmation sensors at an intermediate position thereof. The rotation of the rotary valve is proportionally controlled from the information of the two intermediate sensors, and the flow rate is controlled so that the interlock is not applied. The flow rate control state is maintained until the next rice milling, and the rotary valve is held at the previous rotational speed.

  That is, in the process progress characteristic diagram of FIG. 13, the rice milling function efficiency line a is controlled like the rotary valve efficiency line c by proportional control, not by the rotary valve efficiency line b by conventional interlock control.

  Proportional control is control in which the maximum efficiency and the minimum efficiency are determined in advance and the width is gradually narrowed alternately. In other words, in this proposal, for example, the maximum efficiency start → the confirmation sensor is turned on → the confirmation sensor is turned on → the minimum efficiency is changed, and the confirmation sensor is turned off → the confirmation sensor is turned off → the intermediate A efficiency (maximum and minimum efficiency values). If the upper limit is reached, the efficiency is changed to an intermediate efficiency between the current time and the previous time, and control is performed so that no interlock is applied.

  In general, it is desirable not to interlock the machine, because the machine exhibits its performance in continuous specifications. For example, a stone remover or the like sorts a certain amount of brown rice, and cutting the brown rice causes poor sorting and scattered brown rice, but such problems can be prevented. Moreover, the brown rice tank can also be made small in the same way as during interlocking. Furthermore, the efficiency of the rice milling machine varies depending on various conditions, and can cope with such conditions widely.

(Handling when charges are insufficient)
Next, the handling at the time of a charge shortage by the automatic rice processing system will be described.
In the conventional non-washed rice course where the washing rice capacity is limited to the capacity of the white rice charge tank (for example, 30 kg), no wash-free rice comes out to the white rice tank when it is terminated due to a lack of fees. Has the problem of causing confusion because it is mistaken for a system failure, a bridge of white rice in the white rice charge tank, and the like.

  The first solution is that if only the no-wash rice course runs out of charge (the rotary valve sensor 12s is on when the charge is out), the entire amount is continued to the end or the rice that has been taken into the machine It is a method of discharging after washing-free rice treatment. Thus, an unnecessary trouble can be avoided by advancing washing-free rice processing.

  The second solution is that if only the no-wash rice course runs out of charge, when the final unit price operation time (rotary valve 1 unit price operation time) ends, the rice that has been taken into the machine is washed and discharged. This is a method in which the user can arbitrarily select whether to restart the system by injecting an additional fee.

  Specifically, after the final billing operation is finished, the system is paused, and when the no-wash rice button is pressed, all the rice in the machine is washed and discharged, while the additional fee is charged and then the no-wash rice button is pressed. Then, the current control of taking the brown rice of the input hopper remaining in the midway stop state into the machine is performed. Further, when the operation of the final billing is finished and the apparatus is temporarily stopped, the processing based on the additional fee is guided to the user by voice guidance. In this way, unnecessary troubles can be avoided as described above.

  The third solution is that when the final rice unit operation time (rotary valve unit operation time) ends when there is a shortage of charge in an automatic rice processing system that discharges all the remaining rice, it is taken into the white rice charge tank. The user can arbitrarily select whether the rice is washed without washing and discharged into a white rice tank or restarted by adding an additional fee.

  Specifically, after the final billing operation is finished, the system is paused, and when the whiteness button is pressed, the rice in the white rice charge tank is milled and discharged. Then, the current control of taking the brown rice of the input hopper remaining in the midway stop state into the machine is performed. Further, when the operation of the final billing is finished and the apparatus is temporarily stopped, the processing based on the additional fee is guided to the user by voice guidance. In this way, unnecessary troubles can be avoided as described above.

It is a top view of the example of automatic rice milling system composition. It is a side view of an example of internal equipment composition of an automatic rice milling system. It is a system development figure of an automatic rice processing system. It is a timing chart A. It is a timing chart B. It is a timing chart C. It is a timing chart D. It is a timing chart E. It is a timing chart F. It is a timing chart G (a) and a timing chart H (b). It is the front view (a) of the rice mill part in the case of performing a dry-type non-washing process, and the structural example (bd) of a rotary body. It is the operation | movement explanatory drawing (b)-(d) by the perspective view (a) and side view of a power dump mechanism. It is a process progress characteristic view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Building 2 Machine room 3 Receiving space 11 Partition wall 12 Input hopper 12s Rotary valve sensor (input part sensor)
12v rotary valve (feeding mechanism)
13 White rice tank 14 Stone remover 15 Rice mill 15b Brown rice tank lower limit sensor (Brown rice presence / absence detection sensor)
15t brown rice tank 15v selector valve 16g white rice chute (white rice charge tank)
t1 When course is selected t2 When lower limit sensor is detected t3 When predetermined time has elapsed t4 When full amount is delivered t5 When predetermined time has elapsed t6 When rice milling ends t7 When predetermined time has elapsed Tp Initial circulation time Tc Total amount delivery time

Claims (2)

  An input hopper (12) that receives the introduced brown rice, a feeding mechanism (12v) that feeds the brown rice that has been input to the input hopper (12) by a predetermined amount, and a stone remover that separates foreign matter in the supplied brown rice ( 14), a rice milling machine (15) for whitening the unpolished rice removed by the stone removing machine (14), and the feeding mechanism (12v), the stone removing machine (14), the rice milling machine when a usage fee is charged. (15) A control unit that controls the operation of each device and performs a charge control of the usage fee for each operation time of each device, and is transported from the stone removal process step to the brown rice inlet of the rice mill (15) An unpolished rice tank (15t) capable of storing the unpolished rice is provided, and the unpolished rice presence / absence detection sensor (15b) for detecting the presence / absence of unpolished rice is provided inside the unpolished rice tank (15t). Condition of brown rice detection by Automatic rice processing apparatus characterized by starting the charging control of the usage fee for each of the operating time of each device. An input hopper (12) for receiving the introduced brown rice, a feeding mechanism (12v) for feeding the brown rice charged to the input hopper (12) by a predetermined amount, and a stone remover (12) for separating foreign matter in the fed brown rice 14), a rice milling machine (15) for whitening the unpolished rice that has been stone-extracted by the stone-milling machine (14), and a predetermined amount of refined rice from the milled rice that has been milled by the rice-milling machine (15). Circulation chute for charging white rice, and when the usage fee is charged, the feeding mechanism (12v), the stone remover (14), the rice milling machine (15) are used for the operation control of each device and the operating time of each device. A brown rice tank (15t) capable of storing the brown rice transported from the stone removal processing step is provided at the brown rice inlet of the rice mill (15). Inside the tank (15t) is brown rice Brown rice presence detection sensor for detecting the free (15b) provided, automatic rice processing apparatus characterized by starting the operation of the brown rice presence detecting sensor (15b) rice mill detection of brown rice conditions by (15).

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