JP2003200067A - Coin-operated rice polishing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a coin-operated rice polishing machine which can surely discharge the rice fed into the machine without allowing the rice to remain in a machine body even in case of a failure of a motor relay. <P>SOLUTION: This coin-operated rice polishing machine 1 has supply hopper means 2 with a rice detecting sensor 12, rice polishing means 3 having the motor relay 21 and operation control means for performing a series of rice polishing treatment. The operation control means has a fault monitor means for outputting fault information upon receipt of a signal of absence of the rice from the rice detecting sensor 12 before receiving the on signal of the motor relay 21 and continuation control means for stopping the operation of the coin-operated rice polishing machine 1 after the operation thereof is continued before the lapse of a prescribed time regardless of the detection signal of the motor relay 21 in accordance with the fault information received from the fault monitor means. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coin milling machine that automatically mills rice based on the output of a motor relay that detects a milling load, and more particularly to a coin milling machine that operates when a motor relay fails. ,
The present invention relates to a coin polishing machine capable of reliably discharging input rice without remaining in the device. 2. Description of the Related Art In rice milling, it is necessary to apply a predetermined load to a milling roll. Therefore, a coin milling machine is provided with a motor relay for detecting a load current value of a milling motor.
After confirming from the output of the motor relay that the rice polishing motor has reached a predetermined load current value, the rice polishing process is performed. Conventional coin milling machine waits for the output of the motor relay when starting rice polishing, and determines that the motor relay has failed if the motor relay does not operate even after a predetermined time has elapsed,
The operation of the coin rice mill was stopped. [0003] However, in such a case, a large amount of rice remains inside the coin milling machine, and it is necessary to reinsert the coin to discharge the rice. , It takes time to discharge rice inside the aircraft,
This inconvenienced not only administrators but also users. Also,
When the set value of the motor relay is increased, when the amount of rice to be supplied to the supply hopper is small, the motor relay is determined to be abnormal, and the operation is stopped, even though the motor relay is normal. in this way,
If the setting of the motor relay is improper, the same problem as described above occurs immediately, and there is a problem that it takes time to operate. [0004] It is an object of the present invention to provide a coin polishing machine capable of reliably discharging rice without leaving it in the machine body even when a motor relay fails. [0005] In order to solve the above-mentioned problems, the invention according to claim 1 receives rice input and sends out a signal according to the presence or absence of rice with a rice detection sensor. Supply hopper means, a rice polishing means having a motor relay for sending an ON signal when the rice polishing motor reaches a predetermined load current value, and transferring rice from the supply hopper means by inserting coins, and polishing the rice by the rice polishing means. In a coin milling machine having operation control means, the operation control means includes:
An abnormality monitoring unit that outputs abnormality information when a signal indicating that there is no rice is received from the rice detection sensor until an ON signal of the motor relay is received, and based on the abnormality information received from the abnormality monitoring unit, Continuing control means for stopping the operation of the coin milling machine after a predetermined period of time has elapsed irrespective of the detection signal is provided to constitute the coin milling machine. In the coin milling machine, the rice is transferred from the supply hopper and milled by the milling means. When all the rice has been transferred from the supply hopper, the rice detection sensor sends a signal indicating that there is no rice to the abnormality monitoring means. If, by this time, the abnormality monitoring means has not received the ON signal of the motor relay of the rice polishing means, the abnormality monitoring means outputs abnormality information when it receives a signal indicating that there is no rice from the rice detection sensor, According to the information
After the continuation control means continues the operation until a predetermined time has elapsed, the operation of the coin milling machine is stopped. The coin milling machine of the present invention has the following effects. Since the coin milling machine having the above-described configuration includes the predetermined abnormality monitoring means and the continuation control means in the operation control means, the abnormality monitoring means is controlled by the motor of the rice polishing means by the time when all the rice is transferred from the supply hopper. When the relay ON signal is not received, the operation of the coin milling machine is stopped after the continuation control means continues the operation until a predetermined time elapses based on the abnormality information of the abnormality monitoring means. Therefore, when the motor relay is not turned on due to an abnormality of the motor relay, including a problem caused by the 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 polishing machine is called in order to recover the inserted rice, and it is possible to eliminate the user's distrust. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete rice mill according to the present invention will be described below with reference to the accompanying drawings with respect to an embodiment specifically configured based on the above technical idea. FIG. 1 shows a functional configuration diagram of the coin milling machine of the present invention. In FIG. 1, a coin milling machine 1 includes a supply hopper 2 for receiving input rice, a stone crusher 3 for removing contaminants such as stones, a rice milling machine 4 for milling rice that has been subjected to foreign matter selection, a white rice tank 5 for receiving polished rice, and the like. Is a main component of the main body, and an operation control unit (not shown) connected to the operation panel 6 having the coin insertion slot 6a to control the operation of the main body is provided. In detail, in addition to the rotary valve 11 for constant operation, the supply hopper 2 has a rice residue sensor 12 for detecting rice residue and a type sensor 13 for discriminating the input type of paddy or brown rice. In addition to the above, a screen separator 14 is provided at the input port of the supply hopper 2. The destoner 3 is disposed via a destoner elevator 15 for feeding the rice from the supply hopper 2 to the next process and a brown rice switching unit 16. The destoner elevator 15 has a transmission path 14a for returning to the net separator 14, and the brown rice switching unit 16 has a transmission path 16a for taking home brown rice. The destoner 3 is provided with a residual discharging device 17 for returning the remaining rice remaining on the sorting net to the elevator 15 for the destoner. This residual discharge device 17
Can be returned to the net sorter 14 via the transmission path 14a. Foreign matter removal device 18 and rice mill elevating machine 19 from destoner 3
The brown rice tank 20 is arranged at the input port of the rice milling machine 4 via. The rice polishing elevator 19 includes a brown rice tank sensor 19a. The rice polishing machine 4 has a motor relay 2 for detecting the rice polishing load.
1, a rice chute 2 connected to a rice milling elevator 19
The white rice tank 5 is arranged facing the white rice outlet 4a which can be switched to the two sides. Next, operation control of the coin milling machine will be described. FIG. 2 shows an operation procedure diagram of the coin polishing machine of FIG. After the rice is inserted into the supply hopper 2 and the process is started by inserting coins or the like, in FIG.
Abbreviated as 1. In the same manner), the rotary valve 11, the destoner 3, the delifter 15 and the rice mill 19 of the supply hopper 2 are started. In S2, the rice mill 4 is started, and in S3, the white rice outlet 4a is switched to the circulation side.
The circulation for an initial predetermined time is performed until the internal pressure of the rice polishing machine 4 is secured at the route of the rice polishing machine 19 and the rice polishing machine 4. After the circulating rice polishing, the motor relay 21 of the rice polishing machine 4 is checked in S4, and if ON, normal processing of S5 and below is performed, and if OFF, abnormal processing from S11 is performed. In the case of normal processing, the rice polishing in S5 is continued until the rice remaining rice sensor 12 in S6 is turned off. After that, as a post-process, the remaining stone is discharged in S7,
In step S8, the recycle rice is discharged, and in step S9, the remaining rice in the rice mill 4 is discharged. In the case of abnormal processing, the stone discharging solenoid valve is turned on in S11 two seconds after the timer processing, and the residual discharging device is removed from the stone removing machine 3 until the valve is turned off in S12 1.5 seconds later. Step 17 discharges the sorted rice mixed with stones. In S13, the rice remaining rice sensor 12 in the supply hopper 2 is checked, and when turned on, the motor relay 21 is checked in S14. At this time, the motor relay 21
If is kept off, the operation is terminated after the deferral for a sufficient time for discharging rice, for example, 30 seconds. The rice remaining rice sensor 12 in the supply hopper 2
Is off (S13) or the rice remaining rice sensor 12 of the supply hopper 2 is on (S13), the motor relay 2
1 is turned on (S14), the motor relay 21
Is checked again (S15). If it is on, the process is repeated from the check of the rice remaining rice sensor 12 (S13). If it is off, the process is terminated after a predetermined short time, for example, 5 seconds. As described above, the operation control unit of the coin milling machine monitors the turning on of the motor relay, and outputs abnormal information when a signal indicating that there is no rice is received from the rice detecting sensor until the ON signal is received. Then, based on the abnormality information, the coin milling machine is stopped after continuing the operation of the coin milling machine until a predetermined time has elapsed irrespective of the detection signal of the motor relay. Therefore, even if the motor relay is not turned on due to abnormality, the rice can be processed and discharged without causing the generation of rice residue.
As a result, there is no need to call the administrator due to the problem based on the small-sized insertion. In the case of handling rice and brown rice together, in a rice mill having a rice hulling process, a sensor for discriminating between rice and brown rice and a remaining amount detecting means for detecting the remaining amount of the supply hopper are provided in the supply hopper. When the remaining coins are exhausted and the remaining amount detecting means is stopped after a predetermined period of time in the ON state, the next time, the discrimination between the paddy and the brown rice by the sensor at the time of startup is performed after the transfer device installed on the supply hopper is started. It is configured to start after a predetermined time. Conventionally, there is a case in which when the remaining coins are exhausted and the discriminating sensor is at the discriminable position and the remaining amount of the supply hopper is small, the coins are left without being newly inserted. In this case, when the previous user supplies brown rice and the next user supplies paddy, the sensor of the supply hopper determines that it is brown rice and starts operation. Was directly supplied to the rice milling machine. The present invention is intended to solve such a problem, and the above-described configuration allows the supplied rice to be properly processed without being affected by the grains left by the previous user. That is, when the previous time was the paddy and this time was brown rice, the roll of the hulling device is closed for the paddy,
During the transfer time from the feed hopper transfer device to the hulling device, by using the sensor again and adjusting the gap between the rolls of the hulling device, skin displacement due to the hulling roll of the brown rice that was put in this time is prevented. it can. Also, the last time was brown rice,
When this time is the paddy, at the time of start-up, since the roll gap of the paddy device is adjusted for paddy supply, the paddy operation is performed as it is. In the case where the crushed rice discharged from the crusher 3 is to be processed, the crusher 3 is operated after a predetermined time has passed since the rice in the supply hopper 2 has been exhausted due to the start of the milling process.
Is operated to remove the residual rice remaining on the sorting net of the crusher 3. The residual discharge device 17 can return the rice remaining in the destoner 3 to the lift 15 for the destoner, and can return the residual rice from the residual discharge device 17 to the net separator 14 via the transmission path 14a. If the rice contains a large amount of stones, the amount of the remaining rice will be as much as 25 kg per month. Conventionally, the rice remaining in the destoner 3 is stored in a residual rice storage tank provided thereunder, and this is periodically removed. The administrator had to collect and process it. However, by adopting the above configuration, stones and foreign substances can be easily removed from the residual rice, and the selected rice can be used for confirming the trial run, or can be used as a fertilizer for planting soil. Generation of unnecessary waste can be suppressed. Next, load control of the rice mill will be described. FIG. 3 is a perspective view of a configuration example of a rice mill related to load control.
FIG. 4 shows a configuration diagram of the control system. In the following, the description of the same members will be omitted by giving the same reference numerals. In FIG. 3 and FIG. 4, a rice mill 31
A drive motor 32 is connected to an inverter unit 33 for drive control, and includes a vibration sensor 34 for drive control. The vibration sensor 34 includes a milling unit and a bran discharging unit 31.
In the middle of a, the vibration of the rice milling machine 31 during the whitening process is detected, connected to the control unit 37 via the smoothing unit 35 and the amplifier unit 36 in FIG. 4, and connected to the inverter unit 33 via the output interface 38. By doing so, the motor 32 is controlled forward and reverse. FIG. 5 is a functional block diagram of the control unit 37. As shown in FIG. In FIG. 5, the control unit 37 includes a vibration sensor 34.
Analog signal adjuster 41 for receiving a signal from the vibration detector due to the above, an arithmetic unit 42 for receiving the adjustment signal and performing FFT analysis operation and target value operation, a digital output unit 43 for converting the processing result, and an operation unit 42 And a regression equation unit 44 for storing a regression equation used in the above. The regression equation unit 44 is connected to an external editor 45 so as to be able to input and output. The arithmetic unit 42 sets in advance the distribution of the frequency measured by the vibration detector 34 and the polishing precision or whiteness or the change in whiteness as a multivariate regression equation depending on the frequency. From the difference between the target value and the milling accuracy or whiteness or whiteness change calculated by applying the detected value, the compression plate 31b for adjusting the rotation speed of the motor in the rice milling section or the pressure of the rice in the milling section is controlled. When a frequency distribution regarded as abnormal is detected, an abnormal alarm is issued and the coin milling machine is stopped based on a predetermined procedure. The processing of the arithmetic unit 42 is performed by the FFT on the regression equation of the regression equation unit 44 as in the two load state examples shown in FIG.
Process analytic operations and target value operations. For example, it is assumed that there is a characteristic change in the frequency of X1 and X2 when a sample having a different moisture content of rice is passed through an elevator. X1 and X2 of a number of samples are measured and regression analyzed with actual grain moisture. By this regression analysis, for example, y _h = a +
A regression equation represented by a specific frequency such as b · X1 + c · X2 is obtained. X1 is newly added at the time of actual driving after that.
And X2 are measured. This regression equation, X1
And X2 are substituted to calculate the target value. In accordance with the obtained target value, a digital output is generated to move the load of the rice mill up and down. At this time, for example, if the moisture is predicted to be 14%, the load is set to the normal load, and if the moisture is predicted to be 16%, the load is reduced. Then, if it is predicted to be 18%, a bit having the meaning of not being able to mill rice is turned on. Conventionally, as disclosed in Japanese Patent No. 2667303, a torque sensor for detecting the rotating shaft torque of the whitening roll or a current value detector for detecting the current value of the whitening roller motor is used as the internal load detecting means of the milling unit. And the torque sensor or the current value detector detects the internal load of the whitening chamber, and the outflow of the internal white rice is controlled based on the detected value of the internal load. As described above, since the conventional method is based on white rice outflow control based on torque or current value, it is not possible to detect breakage inside the milling net. But,
With the above configuration, it is possible to detect the frequency due to the breakage of the milling net, and to detect the frequency based on the rotation speed increase of the blower accompanying the increase in the storage of bran in the milling, so that the target milling accuracy Not only the above control but also a simple regression equation enables various diagnoses. A vibration detector is installed in the supply hopper 2, the destoner 3, the white rice tank 5, the rice bran storage device and the like, and the vibration characteristics of each device and the operation of each device are determined in advance by a multivariate The apparatus may be stored as a regression equation, and the detection value of the vibration detector may be applied to each of the regression equations to diagnose each device. For example, when the frequency is high when the supply hopper 2 inputs rice, the frequency is determined to be brown rice, and when the frequency is low, it is determined to be paddy. When a predetermined frequency appears on the side wall of the supply hopper, it is determined that the remaining amount has run out. In addition, a large number of information detections such as presence / absence of rice, input amount, rice discharge from a destoner, clogging and internal residue of each device, rice transport flow rate, etc. can be grasped by one sensor, so that a wide range of control can be easily performed. . Next, a method of changing the usage price of the coin milling machine will be described. By continuously performing an operation of inserting a basic unit price into the coin mech, which is the coin insertion unit 6a, and a setting operation of replacing the amount inserted into the coin mech with the basic unit price, the usage price of the coin milling machine is obtained. Is configured to perform the setting process. When the basic unit price of the coin mill is changed to 120 yen, for example, as shown in the operation panel 6 of the coin mill shown in FIG. Amount 1 to be the basic unit price for Coin Mech
20 yen is inserted, and subsequently, the reset switch 54 provided on the operation unit which can be set only by the maintenance manager is pressed. In this way, input amount information from coin mech,
By associating the rice and whiteness information items with each switch and instructing the information to be determined by the reset switch,
A new basic unit price can be set according to the item. Conventionally, there are various usage prices of coin mills, such as a method of exchanging a processing program, a method of writing with a dedicated program loader, and a method of changing an operation timer by creating an external timer. With these changes,
In any case, since the installer of the coin milling machine cannot easily change the coin milling machine, there has been a problem that all coin milling machines are troublesome to the store. In order to solve such a problem, the above-mentioned method of setting the use price allows the existing switch in a normal panel configuration having a coin insertion portion and a selection switch and a reset switch for an administrator arranged inside to be used. It can be processed in combination. As a result, the price setting display operation and the input device become unnecessary, 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 possible to respond immediately without having to wait for the processing order by the dealer, and it is possible to easily respond to a commemorative event or the like accompanied by a temporary price change. Next, a coin milling machine for processing unwashed rice together will be described. FIG. 8 is a plan view showing the internal structure of the coin polishing machine, and FIG. 9 is a sectional view of the display device. In FIG. 8, a coin milling machine 61 is provided with a normal milling machine 4 and a non-washed rice milling machine 64 adjacent to each other, and separately provided with an inlet and a transfer device for each milling machine. A transfer device 66 for transferring the white rice treated in Step 4 to the rice-free rice milling machine 64 is provided. In the middle of the transfer device 66, means 69 (not shown) for continuing or stopping the conveyance is provided, and the rice-free rice processing is completed. In this embodiment, there is provided an embodiment in which a display means 68 capable of comparing processed rice with normal rice and processed rice without rinsing, or a display means 68 by sampling is provided. The processing procedure of the coin milling machine having the above configuration is as follows. First, the user processes brown rice from the supply hopper 2 to supply brown rice, and continuously processes the white rice stored in the white rice tank 5 and returned to the user once without washing. Performed by After receiving the white rice, if the user desires further washing without rice, the user operates the operation panel 6 based on the procedure displayed and set on the operation panel 6. Then, a suction fan 74 (FIG. 9) provided on the side of the non-washed rice tank 65 is operated, and is provided above the suction fan 74, and the lower part thereof is connected to the suction fan 74 by the perforated plate 72. What,
A predetermined amount of white rice in the white rice tank 5 is suction-conveyed via the transfer device 66 and the display conveyance device 67. At this time, the white rice in the white rice tank is conveyed by the transfer device 66 to the input hopper 62 provided in front of the rice-free rice processing machine 64, and by means 69 for continuing or stopping the conveyance,
The user arbitrarily selects the processing amount. The white rice conveyed to the input hopper 62 is then subjected to non-washing rice processing by a non-washing rice processing machine 64 and discharged to a non-washing rice tank 65. Then, the suction fan 74 is operated, and the gap 73 next to the white rice accumulated in the one gap 73 a of the display device 68.
The non-washed rice processed into b is sucked through the duct 65a. In this way, the white rice before the non-washing rice processing and the non-washed rice after the processing can be compared side by side, so that the user can directly determine the degree of the non-washing rice processing. The display device 68 is provided in a machine room, and the comparison is performed by an imaging device (not shown) provided in front of the display device 68, and an image obtained by the imaging device is displayed on a display device provided on the operation panel 6. Good. A charging hopper 62 is provided in front of the rice-free rice processing machine 64, and the brought white rice can be subjected to the rice-free rice processing 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. As described above, by using a part of the side of the coin milling machine, a separate building for non-washing rice is provided on the right (left) side, and the input hopper 62 is provided near the operation panel 6. Normal rice milling and non-washing rice processing can be processed as separate independent processes, respectively, or a coin milling machine that can perform normal rice washing and subsequent rice washing processing after normal rice processing. Conventionally, when a non-washing rice processing machine (polished rice) is installed in a coin milling machine, a machine equal to or more than a rice milling machine and a large space for dust processing are required. It is difficult to fit in. In addition, there are many difficulties in processing, such as poor machine adjustment due to unmanned business and poor quality of brought-in brown rice, and complaints that the rice milling machine is not clean due to poor whiteness of the rice milling machine and cracked rice In some cases, crushed rice may be generated, and there are many problems. However, in the coin milling machine configured as described above, a rice washing process can be added to the existing coin milling machine, so that it is not necessary to use a rice milling machine with a system for eliminating remaining rice. Since the process is completely different from the coin milling machine, it can be processed by wrapping with a milling user. In addition, since the rice polishing process is returned to the user's hand once at the stage of white rice without using continuous processing from a rice mill, the user can directly recognize the difference from rice polishing. If there are any poor properties, it can be stopped in advance by the user's judgment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional configuration diagram of a coin polishing machine of the present invention. FIG. 2 is an operation procedure diagram of the coin polishing machine of FIG. 1. FIG. 3 is a perspective view of a configuration example of a rice polishing machine related to load control. FIG. 4 is a block diagram of a control system in FIG. 3 FIG. 5 is a functional block diagram of a control device section FIG. 6 is an example of two load states processed by an arithmetic section FIG. 7 is an operation panel of a coin milling machine FIG. 8 is a plan view of the internal configuration of the coin polishing machine [FIG. 9] A cross-sectional view of the display device of FIG. 8 [Description of symbols] 1 coin polishing machine 2 supply hopper 3 quarrying machine 4 rice polishing machine 5 white rice tank 11 rotary valve 12 rice residue sensor (US detecting sensor) 13 type sensor 14 network sorter 17 residue discharge device 18 the foreign matter removing apparatus 21 motor relay 31 rice mill 34 vibration sensor (vibration detector) 42 operation unit 44 return Shikibu _{y h} regression equation

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Taiichi Mori             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Technology Department F term (reference) 4D043 AA03 HA00 HB01 HB08 JF07                       MA01 MA08 MA30 MB08

Claims (1)

Claims: 1. A supply hopper means for receiving input rice and transmitting a signal according to the presence or absence of rice with a rice detection sensor, and when the rice polishing motor reaches a predetermined load current value. A rice milling device having a motor relay for sending an ON signal; and a coin milling machine having operation control means for transferring rice from a supply hopper means by inserting coins and processing rice by the rice milling means, wherein the operation control means includes: Abnormality monitoring means for outputting abnormality information when a signal indicating that there is no rice is received from the rice detection sensor before receiving the ON signal of the motor relay; and based on the abnormality information received from the abnormality monitoring means, Continuation control means for stopping the operation of the coin milling machine until the predetermined time has elapsed irrespective of the detection signal, and then stopping the operation.