JP3758573B2 - Coin milling machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coin rice milling machine that automatically performs rice milling based on the output of a motor relay that detects a rice milling load, and in particular, even when a motor relay fails, the discharged rice is reliably discharged without remaining in the machine body. This is related to a coin milling machine.
[0002]
[Prior art]
In the rice milling process, since it is necessary to apply a predetermined load to the rice milling roll, the coin milling machine is provided with a motor relay that detects the load current value of the rice milling motor. Based on the output of the motor relay, it is confirmed that the milled rice motor has reached a predetermined load current value, and then the milling process is advanced.
The conventional coin milling machine waits for the output of the motor relay when starting the rice milling, and if the motor relay does not operate even after a predetermined time has passed, it is determined that the motor relay has failed, and the coin milling machine stops operating. It was.
[0003]
[Problems to be solved by the invention]
However, in such a case, a large amount of rice remains inside the coin milling machine, and it is necessary to re-insert coins in order to discharge this, and it takes time to discharge the rice inside the machine. As a result, not only the administrator but also the user was inconvenienced. If the set value of the motor relay is increased, when the amount of rice put into the supply hopper is small, the motor relay is determined to be abnormal although it is normal, and the operation is stopped. As described above, even when the motor relay is improperly set, there is a problem that the same problem as described above occurs immediately and it takes time to operate.
[0004]
An object of the present invention is to provide a coin milling machine capable of reliably discharging inserted rice without remaining in the machine body even when a motor relay fails.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that a supply hopper means for receiving the introduced rice and providing a rice detection sensor and sending a signal according to the presence or absence of rice and a rice milling motor have a predetermined load. In a coin milling machine comprising a rice milling means equipped with a motor relay for sending an ON signal when the current value is reached, and an operation control means for transferring rice from the supply hopper means by inserting coins and processing the rice by the rice milling means, The operation control means is an abnormality monitoring means for outputting abnormality information when a rice absence signal is received from the rice detection sensor until the motor relay ON signal is received , and acquisition of abnormality information received from the abnormality monitoring means. The coin milling machine is configured by including a continuation control means for stopping the coin milling machine after the operation of the coin milling machine is continued until a predetermined time has passed.
[0006]
The above-mentioned coin milling machine transfers the rice from the supply hopper and is polished by the rice milling means.When all the rice has been transferred from the supply hopper, the rice detection sensor sends a signal indicating no rice to the abnormality monitoring means. If the abnormality monitoring means has not received the ON signal of the motor relay of the rice milling means by the time, the abnormality monitoring means outputs abnormality information when receiving a signal of no rice from the rice detection sensor. After the continuation control means continues operation until a predetermined time elapses after acquisition of the abnormality information, the operation of the coin mill is stopped.
[0007]
【The invention's effect】
The coin rice mill of the present invention has the following effects.
The coin rice milling machine having the above-described configuration is provided with predetermined abnormality monitoring means and continuation control means in the operation control means, so that the abnormality monitoring means is a motor of the rice polishing means by the time when all the rice has been transferred from the supply hopper. When the relay ON signal is not received, the continuation control means continues operation until a predetermined time elapses after the abnormality information is acquired based on the abnormality information of the abnormality monitoring means, and then stops the operation of the coin rice mill. Therefore, when it does not turn on due to an abnormality in the motor relay, including a problem due to a small amount of sticking, the rice is processed and discharged without causing residual rice. As a result, it is possible to avoid a situation in which the operation manager of the coin milling machine is called in order to recover the introduced rice, and it is possible to eliminate the distrust of the user.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings with reference to the drawings.
FIG. 1 shows a functional configuration diagram of the coin milling machine of the present invention.
In FIG. 1, a coin rice mill 1 includes a supply hopper 2 that receives input rice, a stone remover 3 that removes foreign matters such as stones, a rice mill 4 that polishes foreign matter-sorted rice, and a white rice tank 5 that receives polished rice. And a driving control unit (not shown) for controlling the driving of the main body by connecting to the operation panel 6 having a coin insertion portion 6a.
[0009]
Specifically, in addition to the rotary valve 11 for quantitative operation, the supply hopper 2 includes a rice residual sensor 12 for detecting the residue of rice and a type sensor 13 for determining the input type of rice bran or brown rice, A net sorter 14 is provided at the inlet of the supply hopper 2. The stone remover 3 is arranged via a stone remover elevator 15 and a brown rice switching unit 16 for sending the rice from the supply hopper 2 to the next process. The stone remover elevator 15 has a feeding path 14a for returning to the net sorter 14, and the brown rice switching unit 16 has a feeding path 16a for taking out the brown rice. The stone remover 3 is provided with a residual discharge device 17 for returning residual rice remaining on the sorting screen to the stone remover elevator 15. The residual discharging device 17 can be returned to the net sorter 14 through the transmission path 14a. A brown rice tank 20 is disposed at the inlet of the rice mill 4 from the stone remover 3 through the foreign matter removing device 18 and the rice mill lift 19. The rice lifting machine 19 includes a brown rice tank sensor 19a. The rice mill 4 is provided with a motor relay 21 for detecting the rice load, and a white rice tank 5 is disposed facing the white rice outlet 4a that can be switched to the white rice chute 22 side connected to the rice mill lift 19.
[0010]
Next, operation control of the coin milling machine will be described. FIG. 2 shows an operation procedure diagram of the coin rice mill shown in FIG.
When the processing is started by inserting coins after the rice is introduced into the supply hopper 2, in FIG. 2, in step 1 (abbreviated as S <b> 1. The same applies hereinafter), the rotary valve 11 of the supply hopper 2, the stone remover 3, The elevator 15 for the stone remover and the elevator 19 for the rice milling are activated. The rice milling machine 4 is activated in S2, the white rice outlet 4a is switched to the circulation side in S3, and the initial predetermined time until the internal pressure of the rice milling machine 4 is secured by the route of the rice milling chute 22, the rice milling elevator 19, and the rice milling machine 4 Circulate. After this circular rice milling, the motor relay 21 of the rice milling machine 4 is checked in S4. If it is on, normal processing from S5 onwards is performed, and if it is off, abnormal processing from S11 is performed.
[0011]
In the case of normal processing, the real polished rice in S5 is continued until the rice residual rice sensor 12 in S6 is turned off. After that, as post-processing, the residual discharge of stone is removed at S7, the recycled rice is discharged at S8, and the remaining rice of the rice mill 4 is discharged at S9.
[0012]
In the case of abnormal processing, for example, the stone discharge solenoid valve is turned on in S11 after 2 seconds by the timer process, and the stone is removed from the stone remover 3 by the residual discharge device 17 until the valve is turned off in S12 after 1.5 seconds. Drain mixed rice. In S13, the rice residual rice sensor 12 of the supply hopper 2 is checked, and when it is turned on, the motor relay 21 is checked in S14. If the motor relay 21 remains off at this time, the operation is ended after deferring for a time sufficient for discharging rice, for example, 30 seconds.
[0013]
When the rice residual rice sensor 12 of the supply hopper 2 is off (S13) or the rice relay sensor 12 of the supply hopper 2 is on (S13) and the motor relay 21 is on (S14). Checks the motor relay 21 again (S15), and repeats from the check (S13) of the rice residual rice sensor 12 if it is on, and if it is off, it ends after a predetermined short time, for example 5 seconds. .
[0014]
In this way, the operation control unit of the coin milling machine monitors the ON state of the motor relay, and outputs anomaly information when it receives a no rice signal from the rice detection sensor before receiving the on signal. Based on the abnormality information, regardless of the detection signal of the motor relay, the coin milling machine is continuously operated until a predetermined time has elapsed, and then stopped. Therefore, even if it is not turned on due to an abnormality in the motor relay, the rice can be processed and discharged without causing residual rice. As a result, there is no need to call an administrator due to the above-described malfunction based on a small amount of insertion.
[0015]
In the case of handling rice bran and brown rice together, a rice mill equipped with a rice hull process is provided with a sensor for discriminating rice bran and brown rice, and a remaining amount detecting means for detecting the remaining amount of the supply hopper. When the remaining amount of inserted coins disappears and the remaining amount detection means is turned on and stops after a lapse of a predetermined time, the next time the start-up sensor discriminates rice cake and brown rice after the conveyor device built in the supply hopper starts It is configured to start after a predetermined time.
[0016]
Conventionally, there are cases where the remaining amount of inserted coins is lost, and the sensor to be discriminated is in a discriminable position, but when the remaining amount of the supply hopper is low, a new coin is not inserted and left as it is. In this case, when the previous user supplied brown rice and the next user supplied rice bran, the sensor of the supply hopper discriminates it as brown rice and starts operation. May be supplied directly to the rice mill. The present invention is intended to solve such a problem. With the above configuration, the supplied rice is properly processed without being affected by the grain left by the previous user.
[0017]
In other words, when the last time is rice cake and this time is brown rice, the roll of the rice huller is closed for the rice cake, but the sensor re-discriminates during the conveyance time from the conveying device of the supply hopper to the rice huller. And by adjusting the gap between the rolls of the rice huller, it is possible to prevent skin slippage caused by the rice hull roll of the brown rice introduced this time. Further, when the previous time is brown rice and the current time is rice cake, the roll gap of the rice huller device is adjusted to supply rice cake at the time of activation, so the rice hulling operation is performed as it is.
[0018]
In the case of processing the stone-removed rice discharged from the stone-removing machine 3, when a predetermined time has passed since the rice in the supply hopper 2 has disappeared due to the start of the rice milling process, the residual discharge device 17 of the stone-removing machine 3 is activated. Residual rice remaining on the sorting screen of the stone remover 3 is eliminated. This residual discharge device 17 can return the residual rice of the stone remover 3 to the stone lifter elevator 15 and return it from the residual discharge device 17 to the net sorter 14 via the feeding path 14a.
[0019]
If there is a lot of stones in the rice, the amount of the residual rice will be as much as 25kg per month. Conventionally, the residual rice of the stone remover 3 is stored in the residual rice storage tank below it, and this is regularly managed by the administrator. It took a lot of work to collect and process. However, with the above configuration, stones and foreign substances can be easily removed from the residual rice, and the selected rice can be used for confirmation of trial operation, or can be used as a fertilizer for planting soil. Generation of unnecessary garbage can be suppressed.
[0020]
Next, load control of the rice mill will be described. FIG. 3 is a perspective view of a configuration example of a rice milling machine related to load control, and FIG. 4 is a configuration diagram of its control system. In the following description, the same members as those described above are denoted by the same reference numerals, and description thereof is omitted.
[0021]
3 and 4, the rice milling machine 31 is driven and controlled by connecting an inverter unit 33 to a driving motor 32, and includes a vibration sensor 34 for driving control. This vibration sensor 34 detects the vibration of the rice mill 31 during the whitening process between the milling unit and the mill discharge unit 31a, and is connected to the control unit 37 via the smoothing unit 35 and the amplifier unit 36 of FIG. The motor 32 is forward / reversely controlled by connecting to the inverter unit 33 via the output interface 38.
[0022]
A functional configuration diagram of the control device unit 37 is shown in FIG. In FIG. 5, a control device unit 37 includes an analog signal adjustment unit 41 that receives a signal from a vibration detection unit by the vibration sensor 34, a calculation unit 42 that receives the adjustment signal and performs FFT analysis calculation and target value calculation processing, A digital output unit 43 that converts the processing result and a regression equation unit 44 that stores a regression equation used in the arithmetic unit 42 are provided. The regression equation unit 44 is connected to an external editor 45 so as to be input / output.
[0023]
The calculation unit 42 presets the frequency distribution measured by the vibration detector 34 and the wrinkle accuracy or whiteness or whiteness change as a multivariate regression equation depending on the frequency, and the detection value obtained by the vibration detector is added to the regression equation. The pressure plate 31b for adjusting the rotational speed of the motor in the milled rice section or the pressure of the rice in the milled section is controlled based on the difference between the calculated accuracy of the milling or whiteness or whiteness change and the target value. When a frequency distribution that is regarded as abnormal is detected, an abnormality alarm is issued and the coin milling machine is stopped based on a predetermined procedure.
[0024]
The processing of the calculation unit 42 performs FFT analysis calculation and target value calculation for the regression equation of the regression equation unit 44 as in the two load state examples shown in FIG. For example, it is assumed that there is a characteristic change in the frequency of X1 and X2 when samples having different water contents are passed through an elevator. A large number of samples are measured for X1 and X2 and regressed with actual grain moisture.
[0025]
By this regression analysis, for example, a regression equation represented by a specific frequency is obtained as y _h = a + b · X1 + c · X2. Then, X1 and X2 are newly measured during actual operation. A target value is calculated by substituting X1 and X2 into the regression equation obtained in advance. According to the obtained target value, a digital output is generated so as to move the rice mill load up and down. At this time, for example, if the moisture is predicted to be 14%, the normal load is set, and if the moisture is predicted to be 16%, the load is decreased. If it is predicted to be 18%, a bit having the meaning that rice milling is impossible is turned on.
[0026]
Conventionally, as in Japanese Patent No. 2667303, a torque sensor that detects the rotational shaft torque of the whitening roll or a current value detector that detects the current value of the whitening roll motor is provided in the internal load detection means of the polishing unit, The internal load of the milling chamber is detected by a torque sensor or a current value detector, and the flow of the internal white rice is controlled based on the detected value of the internal load. As described above, since the conventional one uses white rice spill control by torque or current value, it is not possible to detect breakage inside the fine net. However, by adopting the above configuration, it is possible to detect the frequency due to shaking of the fine net, and to detect the frequency based on the rotational acceleration of the blower accompanying the increase in the accumulation of the fine cake in the fine mesh. In addition to the control of the wrinkle accuracy, there is a feature that various diagnoses can be made by a simple regression equation.
[0027]
Moreover, the vibration detector is installed in the supply hopper 2, the stone remover 3, the white rice tank 5, the rice bran storage device, etc., and the vibration characteristics of each device and the operation of each device are set as a multivariate regression equation by frequency distribution in advance. The device may be stored and the detection value of the vibration detector may be applied to each regression equation to diagnose each device. For example, when the frequency is higher than the frequency when the supply hopper 2 is charged with rice, it is determined as brown rice, and when it is low, it is determined as rice bran. Further, when a predetermined frequency appears on the supply hopper side wall, it is determined that the remaining amount is exhausted. In addition, a wide range of control can be performed easily because a single sensor can detect many information such as the presence / absence of rice, input amount, stone removal machine discharge, clogging of each equipment, internal residual status, and rice transfer flow rate. .
[0028]
Next, a method for changing the usage price of a coin rice mill will be described.
The use price of the coin milling machine is obtained by continuously performing the operation of inserting the amount to be the basic unit price into the coin mech that is the coin insertion unit 6a and the setting operation of replacing the amount of money inserted into the coin mech with the basic unit price. It is configured to perform setting processing.
[0029]
When changing the basic unit price of the coin milling machine to 120 yen, for example, as shown in the operation panel 6 of the coin milling machine shown in FIG. An amount of 120 yen, which becomes the basic unit price, is inserted, and then a reset switch 54 provided on an operation unit that can be set only by a maintenance manager is pressed. In this way, the amount information is input from the coin mech, the distinction between the information items of rice and whiteness is associated with each switch, and the information determination is instructed by the reset switch, so that a new basic unit price is set according to the item. be able to.
[0030]
Conventionally, there are various usage prices for coin rice mills, such as a method of exchanging processing programs, a method of writing with a dedicated program loader, or a method of changing an operation timer by creating an external timer. In any of these changing methods, the installer of the coin rice mill cannot be easily changed, so that there is a problem in that the hands of the dealer are troubled for all the coin rice mills.
[0031]
To deal with such a problem, the above-described usage price setting method combines the existing switch in the normal panel configuration including the coin insertion portion and the selection switch with the reset switch for the administrator disposed inside. can do. As a result, the price setting display operation and the input device are not required, and only the administrator can easily set the basic charge. Therefore, even when the price is revised or the tax rate is changed, it is not necessary to wait for the order of processing by the dealer, and it is possible to respond immediately, and it is possible to easily cope with a commemorative event accompanied by a temporary price change.
[0032]
Next, a coin rice milling machine that treats unwashed rice together will be described. FIG. 8 shows a plan view of the internal structure of the coin rice milling machine, and FIG. 9 shows a sectional view of the display device.
In FIG. 8, a coin milling machine 61 is provided with a regular rice milling machine 4 and a non-washed rice milling machine 64 adjacent to each other, a separate inlet and a conveying device for each processing machine, and a regular rice milling machine. 4 is provided with a transfer device 66 for transferring the white rice treated in step 4 to the washing-free rice milling machine 64, and a means 69 (not shown) for continuing or stopping the conveyance is provided in the middle of the transfer device 66 and the washing-free rice processing is completed. 5 shows an embodiment provided with display means 68 capable of comparing ordinary polished rice and non-washed rice polished rice, or display means 68 by sampling.
[0033]
The processing procedure of the coin rice polishing machine having the above-described configuration is performed by a user firstly processing brown rice from the supply hopper 2 and then continuously washing the white rice stored in the white rice tank 5 and returned to the user once without washing.
When the user desires no-washing rice after receiving the white rice, the user operates the operation panel 6 based on the procedure displayed and set on the operation panel 6. Then, the suction fan 74 (FIG. 9) provided on the side of the non-washing rice tank 65 is activated, and is provided on the upper part of the suction fan 74, and the lower part communicates with the suction fan 74 by the cutout plate 72. Then, a predetermined amount of white rice in the white rice tank 5 is sucked and conveyed via the transfer device 66 and the display conveying device 67.
At this time, the white rice in the white rice tank is conveyed by the transfer device 66 to the charging hopper 62 provided in front of the non-washing rice processing machine 64, and the user can arbitrarily process it by means 69 for continuing or stopping the conveyance. Select the quantity.
The white rice conveyed to the input hopper 62 is then rinse-free rice processed by the rinse-free rice processing machine 64 and discharged to the rinse-free rice tank 65.
Then, the suction fan 74 is actuated to suck the wash-free rice processed into the white rice-side gap 73b accumulated in the one gap 73a of the display device 68 through the duct 65a.
[0034]
In this manner, since the white rice before washing-free rice processing and the washing-free rice after processing can be compared side by side, the user can directly determine the degree of washing-free rice processing.
Note that the display device 68 is provided in the machine room, the comparison is performed by an imaging device (not shown) provided in front of the display device 68, and an image by the imaging device is displayed on a display device provided on the operation panel 6. Good.
[0035]
Further, a feeding hopper 62 is provided in front of the washing-free rice processing machine 64, and it is possible to wash the brought-in white rice by operating the operation panel 6. However, in this case, the suction fan 74 does not operate and the display device 68 does not function.
[0036]
In this way, by using a part of the side of the coin rice mill, a separate building for non-washing rice is provided on the right (left) side, and the input hopper 62 is provided in the vicinity of the operation panel 6, thereby processing ordinary rice milling. It is also possible to treat the washing-free rice processing as a separate independent process, or, after ordinary rice milling, a coin-milling machine that can continue washing-free rice processing.
[0037]
Conventionally, when a washing machine for rice washing (ken rice) is installed in a coin rice mill, it requires a machine equivalent to or higher than that of a rice mill and a large space for its dust treatment. It is difficult. In addition, there are many processing difficulties such as poor machine adjustment due to unmanned sales, poor quality of brought-in brown rice, and complaints that `` the machine is not washed with rice '' due to poor whiteness of the rice milling machine or cracked rice There were many problems that could cause broken rice.
[0038]
However, the coin milling machine configured as described above can be equipped with an existing coin milling machine without washing-free rice processing, so there is no need for the rice milling machine to be a zero-remaining rice system, Since it is a completely separate process from the rice mill, it can be processed by wrapping with the rice milling user. In addition, since the rice polishing process is returned to the user's hand once in the white rice stage without using continuous processing from the rice milling machine, the user can directly recognize the difference from the rice polishing process. If there is a defective property, it can be stopped in advance at the discretion of the user.
[Brief description of the drawings]
1 is a functional configuration diagram of a coin rice mill according to the present invention. FIG. 2 is an operation procedure diagram of the coin rice mill shown in FIG. 1. FIG. 3 is a perspective view of a configuration example of a rice mill according to load control. [Fig. 5] Functional configuration diagram of the control unit [Fig. 6] Example of two load states processed by the calculation unit [Fig. 7] Operation panel of the coin rice mill [Fig. 8] Inside the coin rice mill Plan view of the configuration [FIG. 9] Cross-sectional view of the display device of FIG.
DESCRIPTION OF SYMBOLS 1 Coin rice mill 2 Supply hopper 3 Stone remover 4 Rice mill 5 White rice tank 11 Rotary valve 12 Rice residual sensor (rice detection sensor)
13 Type sensor 14 Net sorter 17 Residual discharge device 18 Foreign matter removal device 21 Motor relay 31 Rice mill 34 Vibration sensor (vibration detector)
42 arithmetic unit 44 regression equation y _h regression equation

Claims (1)

Supply hopper means for receiving the introduced rice and having a rice detection sensor to send a signal according to the presence or absence of rice;
Rice milling means equipped with a motor relay that sends an ON signal when the rice milling motor reaches a predetermined load current value;
In a coin milling machine provided with operation control means for transferring rice from the supply hopper means by inserting coins and processing the rice by the rice milling means,
The operation control means includes an abnormality monitoring means for outputting abnormality information when a signal indicating no rice is received from the rice detection sensor until the ON signal of the motor relay is received;
A coin milling machine comprising: a continuation control unit for stopping the coin milling machine after the operation of the coin milling machine is continued until a predetermined time has elapsed after the acquisition of the abnormality information received from the abnormality monitoring unit.

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