JP3536336B2 - Water control of rice washing rice cooker - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water control system for a rice-washing rice cooker. 2. Description of the Related Art In a conventional rice washing rice cooker, grains stored in a rice storage tank are:
By operating the operating device, various setting data and various sensor states are confirmed, and when the flow rate is detected by the flow rate sensor, a set amount of white rice is supplied from the rice storage tank into the rice washing machine, In this rice washer, rice washing and water adjustment are performed, and when these are completed, the washed rice and water are dropped and supplied into the rice cooker and immersed. Then, the steaming is performed for a predetermined time, and the rice is cooked. [0003] In Mizukagen working of the above cooking operations, the actual fair 2-39558, environmental conditions, for example, when the error of the flow sensor according to water pressure fluctuations occur, or occurs inconveniently Mizukagen is disturbed, The JP-A-2-28
In 0724, when an auxiliary tank for storing water is provided, it is necessary to control the water level in the tank, which not only complicates the system, but also performs water supply from the constant water tank by gravity, so that the water pressure is low. There was a problem that it took a long time to supply water. It is intended to eliminate these. [0004] Therefore, the present invention provides
A rice storage tank 2 for storing white rice, a rice washer 3 for washing or adding water to the white rice supplied from the rice storage tank 2 and then immersing the rice, and a rice cooker 4 disposed below the rice washer 3 In a rice-washing rice cooker provided with a control device 20 for controlling the operation thereof, a water supply passage 35 for supplying water to the rice washing machine 3 is provided with an opening / closing device 36 for opening and closing the water supply passage 35 and a flow sensor 34 for detecting the flow. The flow rate sensor 34 outputs the number of rotation pulses from the flow rate, and the control device 20 uses the flow sensor 34 to count the number of rotation pulses per unit time or the time required to count the specified number of rotation pulses. Means for converting a flow rate value per time, and means for correcting a flow rate value per unit time from a preset relationship between a flow rate sensor output value per unit time and a flow rate correction value. hand Integrating the flow rate value per corrected unit time every predetermined time, or at every predetermined rotation pulse count by, the control device 20 until the integrated value reaches a predetermined flow rate
Washing rice cooker configured to control the opening / closing device 36 to open
In the machine, a flow path is provided on the lower side of the opening / closing device 36 of the water supply passage 35.
A switching device 93 is provided, and the switching device
During the fixed time (t) or the predetermined number of pulses, the water supply passage 35
Discharge the water supplied through the outside of the machine and
(T) After the lapse of a predetermined number of pulses, supply the rice into the rice washing machine 3.
And Mizukagen control instrumentation configuration of bran rice cooking machine, characterized in that the channel switching device 93 in order to feed a switching Ru configuration. The operation of the operating device 19 sets various items for the grains stored in the rice storage tank 2 of the rice-washing rice cooker. The sensor state and the like are confirmed, and a set amount of white rice is supplied from the rice storage tank 2 into the rice washer 3, where the rice is washed.
For the water addition and subtraction, a rotation pulse value that the flow sensor 34 rotates per unit time is detected, and a flow value per unit time is calculated based on the detected rotation pulse value. Or
The flow rate value per unit time is calculated based on the time required for the flow rate sensor 34 to count the specified number of pulses.
Until the calculated integrated value of the flow rate value per unit time reaches a predetermined value, the openable and closable opening / closing device 36 provided in the water supply passage 35 is controlled to be opened by the control device 20, and water is adjusted. Upon completion, both the washed rice and the water are dropped and supplied into the rice cooker 4 and immersed. When the immersion for a set predetermined time is completed, the rice is ignited and cooked. It is done and cooked. On the lower side of the opening / closing device 36 of the water supply channel 35,
A road switching device 93 is provided, and from the opening operation of the opening / closing device 36,
For a predetermined time (t) or a predetermined number of pulses, the water supply passage 35
The water supplied through
(T) After the lapse of a predetermined number of pulses, supply the rice into the rice washing machine 3.
Because it is configured to supply water, the water supply is not stable
Time or when the flow sensor 34 is not stable
Must be discharged outside the aircraft and supplied with water at a stable time.
In this way, the water adjustment accuracy is greatly improved. An embodiment of the present invention will be described below with reference to the drawings. The figure shows a rice-washing rice cooker 1 for storing, washing, and cooking white rice. This rice-washing rice cooker 1 is a rice storage tank 2 for storing white rice, and is supplied with white rice for washing, water addition, and immersion. FIG. 2 shows a state in which a rice washer 3 for washing rice and a rice cooker 4 for cooking rice that has been washed are composed of two units or the like. [0008] A pair of left and right gas cookers are disposed at the bottom of the machine casing 5, and each rice cooker 4 a, 4 b is placed on each gas stand 6.
The rice is cooked by gas ignition. The rice cookers 4a and 4b are composed of an outer pot and an inner pot 8 fitted into the outer pot.
And a handle 10 that can be pulled out to the front side together with each gas stand 6.
The attachment / detachment of the inner pot 8 is performed at a position where the inner pot 8 is pulled out to the front side. [0009] Rails 11 and 12 are erected vertically in the horizontal direction on the rear side of the upper part of the machine frame 5, and the rice storage tank 2 on the upper part is provided.
The moving table 13 having the rice washer 3 and the lower part thereof is provided with a roller 14.
The rice washer 3 is movably supported by a and 14b, and the rice washer 3 is moved and opposed to the upper side of the rice cookers 4a and 4b so that the rice washing supply position can be switched. The rice storage tank 2
Has a scale 15 at the bottom. The measuring device 15 is configured to rotate a rotary cylinder having a partially cylindrical shape around a shaft 16 with a measuring motor 17 and to pump out the rice in the rice storage tank 2 while rotating at a constant rate. Rotation sensor 1
By detecting at 8, the data is input to the CPU 21 of the control device 20 in the operating device 19 having a microcomputer and weighed (capacity or weight). The rice washing machine 3 is located below the rice storage tank 2 and a stirring rod 23 rotated by a vertical stirring shaft 22 is provided at a central portion thereof. To rotate through the gears 25 and the like.
A discharge port 27 which is opened and closed by a discharge valve 26 is provided at the bottom. The discharge valve 26 is integrated with the lower end of a valve shaft 28 that is inserted along the center of the stirring shaft 22, and is vertically moved by a discharge motor 29 via a crank mechanism or the like above the valve shaft 28. Configuration. The outlet 27 is communicated with a drainage chamber (A) 31 through a net 30 at the outer periphery, and tap water is opened and closed by opening and closing a drainage valve 32 in the drainage chamber (A) 31. Water can be supplied to the inside of the rice washing machine 3 from 33, and drainage after rice washing can be performed. In a water supply passage 35 guided from a water pipe via a flow rate sensor 34, the lower nozzle 33 which is opened and closed by an openable and closable opening / closing device 36a to supply water, and the upper portion which is opened and closed by an openable and closable opening and closing device 36b to be supplied with water. A shower 38 is provided so that water can be supplied from the upper and lower portions of the rice washing device 3 for washing rice and adding and removing water. The opening and closing devices 36a and 36b are of a solenoid valve type. The drain valve 32 in the drain chamber (A) 31 is opened and closed by a solenoid 39 via a wire 40, a bell crank 41 and the like. The flow rate sensor 34 is based on a rotation value that rotates per unit time,
The flow rate value per unit time is calculated. The rice washer 3 is deflected toward the front of the rice storage tank 2 and a drain chamber (A) 31 connected to a drain chamber (B) 42 at the lower end of the rice washer 3 on the rear side. The drainage chamber (A) 31 does not protrude outward from the lower region of the rice storage tank 2 in the upper part. At the rear side of the rice washing machine 3, a machine frame 5 for supporting the moving table 13 with rails 11 and 12 is provided.
When the movable table 13 moves in the left-right direction along the rails 11 and 12, the drainage chamber (A) 31 is provided.
However, it is set so as not to hit the machine frame 5. A lid 43 is provided on the rice storage tank 2 so as to be openable and closable so that rice can be supplied and filled. A rice lower limit sensor 44 is provided below the rice storage tank 2 for detecting a decrease in rice and prompting the user to supply rice with a buzzer or the like. A water upper limit sensor 45 for detecting a full supply of rice washing water is provided at an upper portion of the rice washing machine 3, and further water supply is drained out of the machine through an overflow port 46. Reference numeral 47 denotes an inspection lid for opening and closing the outer peripheral portion of the rice washing machine 3. The moving table 13 includes a rice storage tank 2, a rice washing machine 3, a weighing device 15, a water supply passage 35, and a weighing motor 1 thereof.
7. In addition to mounting the rice washing motor 24, the discharge motor 29, etc., a moving motor 48 is provided to drive and rotate the rollers 14a, 14b rolling on the rails 11, 12. By doing so, the movement can be controlled in the lateral direction. The operating device 19 is mounted on the front of the rice storage tank 2 on the moving table 13. The operating device 19 has a box shape, and various operation means of an ON-OFF switch type are provided on a surface plate of the box body. And an LED display unit. The display unit 49 normally displays the time. However, when it is desired to return to the time display when the display is other than the time, the clock unit 50 is used.
You just have to press. When the test means 51 is pressed, the display 49
, A help number 52 displayed by an operation means number, a timer reservation 53, a current time 54, a rice storage amount 55, a total pot number 56, a reservation pot number 57, and the rice storage tank 2 Step display 58 for displaying each step from the supply of rice to the completion of rice cooking and the remaining time and the like is sequentially displayed. When the weighing means 59 is pressed, the weighing motor 17 is driven, and the weighing device 15 is rotated once. When the rice washing means 60 is pressed, the rice washing motor 24 is driven and the stirring rod 23 is rotated. If the upper water supply means 61, the lower water supply means 62, etc. are pushed,
The water is supplied into the rice washing machine 3 by opening each of the opening / closing devices 36a and 36b. When the water level means 63 is pressed, the opening and closing devices 36a and 36b are controlled to be opened into the rice washing machine 3, and the water supply is controlled to a predetermined water supply amount. When the drainage means 65 is pressed, the drainage valve 32 is opened by the output of the solenoid 39, and the rice washing drainage is performed through the net 30. When the dropping means 66 is pressed, the discharge motor 29 is driven and the discharge valve 26 is opened. By pressing the reset means 67, the error display flag on the display section 49 can be released. The test means 51 to the reset means 67 and the like are operated mainly when performing an inspection before starting work. As the setting means, the water adjusting means 64 is used.
In addition to the above, the rice cooking amount means 68 for setting the rice cooking amount, the washing method 69 for setting the rice washing method, the immersion means 70 for setting the immersion time, the unevenness means 71 for setting the washing time, the rice cooker
A mode setting means 72 for setting the rice, a rice storage means 73 for setting the amount of rice supplied into the rice storage tank 2, and the like can be arranged so that each can be set appropriately before cooking. Reference numeral 74 denotes a hook setting means for setting the number of hooks; 75, a starting means for starting the weighing operation of the weighing device 15; 76, a timer setting means for setting a reservation timer;
77 is a clearing means for clearing the total number of pots displayed on the display unit 49, and 78 is an error lamp 79 or a buzzer-8.
This is a help means for displaying the fault location by number by pressing it when the fault location warned by 0 or the like is unknown. The steps of washing and cooking rice are as follows: weighing by the measuring device 15 → washing of the rice by the rice washing device 3 → immersion of the rice washing portion (zari-up) by the intermittent shower from the upper shower 38 in the rice washing device 3 → the rice washing device 3 moving the left and right of the moving table 13 → adjusting the water in the rice washing machine 3 → discharging the rice by opening the discharge valve 26 →
Immersion of rice cooker 4a in inner pot 8 → Rice cooked by gas ignition →
It is a configuration that goes through each process of replacing the inner pot 8 after completion of rice cooking with rice. The rice washer 3 is a single left (L), right (R)
In the mode in which the rice is washed while switching and supplying the rice to the two rice cookers 4a and 4b, the immersion step is appropriately set as the immersion time by the immersion means 70 so that each rice washing step can be performed. In addition, the rice cooking process in each of the rice cookers 4a and 4b can be continuously performed, so that the entire process from rice washing to rice cooking can be efficiently performed. Of the respective steps, those whose time is changed are mainly the immersion step and the stripping step, and the ratio between the rice washing section immersion and the kettle immersion may be changed. The setting of the immersion time by the immersion means 70 is as follows:
One or both of them may be changed and set. These immersion times are calculated by the CPU 21 to calculate and control the kettle immersion time after the rice washing. Water adjustment is started by the outputs of the opening and closing devices 36a and 36b so that the immersion time coincides with the set value. The start of the water adjustment is such that the rice cooker 4a or 4b finishes the rice cooking process. By detecting, this rice cooker 4a or 4b
This is performed after the rice washer 3 has moved upward. That is, the rice cookers 4a and 4b are provided with empty inner pots 8.
Sensor 83 for detecting that the rice cooker 3 is provided, a lid sensor 84 for detecting the presence or absence of the pot lid 9 on the inner pot 8, and detecting that the rice washing machine 3 has moved left and right after cooking and has stopped. With the movement sensor 85 or the like, the water washing in the rice washing machine 3 is started at a position where preparation for dropping rice into the rice cooker 4a or 4b by the rice washing machine 3 is completed. When the water addition and subtraction is completed, the discharge valve 26 is opened by the output of the discharge motor 29, and the washed rice is discharged to the rice cooker 4a or 4b together with the water addition and subtraction, and the rice cooker for the calculated time is used. An immersion is performed. When the rice washing is finished early and the rice cooking is delayed, the movement is started with the rice washing section 3 immersed in the rice washing section 3 and the drainage drainage in the rice washing section 3 performed. Wait for. At this time, the rice in the rice washer 3 is on standby without being subjected to the dipping action. The operation of the washing means 69 is set in five steps from when the rice is washed lightly to when it is carefully done, and which washing mode is set in advance when washing the rice. When any one of the five washing methods is selected by the washing means 69, the washing process is performed via the CPU 21.
The rice washing motor 24, the opening / closing device 36b for upper water supply, the opening / closing device 36a for lower water supply, the solenoid 39 of the drain valve 32, and the like are output to perform rice washing control. In each of the five modes of the washing method, the control outputs include a rice washing time, an upper water supply time, a lower water supply time, a drainage time, and the like.
The number of repetitions of rice washing and the like and the time of the whole rice washing process are changed and set for each process such as bran removal, polishing rice, rough rinsing, finish rinsing by overflow, etc. -It is set in five steps in a mode that is carefully performed from the mode and is stored in the memory. In order to clean the inside of the rice washing machine 3, the drain chamber (B) 42 of the outlet 27 having the drain valve 32 as shown in FIG.
Is formed in a cylindrical shape, and the communication passages 86 and 87 between the drainage chamber (A) 31 on one side thereof are formed in the drainage chamber (B).
The pair of left and right drain valves 32 and the water level valve 88 are opposed to the ends of the communication passages 86 and 87 on the drain chamber (A) 31 side so as to open and close. In addition, the lower nozzle 33 of the water supply passage 35 is viewed through the communication passage 86. The water level valve 88 is operated to open and close via a solenoid 89 and a wire 90 in the same manner as the drain valve 32. When lower water is supplied from the lower nozzle 33, the communication passage 86 is closed. It is guided to the drainage chamber (B) 42 side. In addition, when draining after washing rice, it is controlled to open together with the drain valve 32. After the rice washing, the rice and water are completely dropped by opening the discharge valve 26. Immediately after that, while the drain valve 32 and the water level valve 88 are closed, the upper water supply opening / closing device 36b is opened, and water is supplied from the upper shower 38. By doing so, it is possible to wash out bran and dust and the like adhering to the inside of the rice washing machine 3. Immediately thereafter, the drain valve 32 is opened and water is supplied from the lower nozzle 33. 86 flows into the drainage chamber (B) 42 in a vigorous swirl shape, and the washing water is drained from the communication passage 87 on the opposite side to the drainage chamber (A) 31, so that effective washing can be performed. Reference numeral 91 denotes a drain port of the drain chamber (A) 31. Reference numeral 92 denotes an overflow pipe, which allows overflowing water from the overflow port 46 to flow through the drain chamber (A) 31 to the drain port 91 once. When a test operation for checking each part of the rice washing rice cooker 1 is performed, a manual start 75 and a help means 78 are provided.
With the input of the simultaneous ON operation of both, the flow sensor 34
Even when the flow rate of water is not detected and this flow rate is not input, the measuring operation of the measuring device 15 is started,
Each part of the rice-washing rice cooker 1 is configured to be rotationally driven. The control device 20 is provided in the operation device 19, and receives the operation of various means and the detection of various sensors from the CPU 21. The CPU 21 sends various displays and various drive circuits 82 to the display unit 49 via the panel circuit 81. Through various motors 17, 24, 29, 48, various opening and closing devices 36a,
36b, the solenoid 39, the buzzer-80, and the like are started. As shown in FIG. 2, when the water pressure is high, the flow rate sensor 3
4, the rotation of the flow sensor 34 becomes too high, and the flow rate sensor 34 becomes higher in rotation speed than the reference value. If the water pressure is low, the rotation of the flow sensor 34 becomes difficult to rotate,
Becomes lower than the reference value, making it impossible to accurately control the water supply amount. For this reason, as shown in FIG.
4, a rotation pulse value per unit time is detected, and a flow value per unit time is calculated from the detected rotation pulse value. , A correction value is calculated (see FIG. 4),
A corrected flow rate value per each unit time is calculated. The flow rate value per unit time is added, and the added value is
Until the water supply amount set by the operation described above is reached, the control device 20 controls the opening / closing device 36a to the open state, and the rice washing machine 3
Water supply is continued inside. The calculation may be based on the time required for the flow rate sensor 34 to count the specified number of pulses. Alternatively, a flow rate value per minute time may be calculated. FIG. 11 and FIG. 12 are views showing an embodiment according to the main part of the present invention . As shown in FIG. Switching device 9
The flow path switching devices 93 and 93 are controlled to be in an open state for a predetermined time (t) or a predetermined number of pulses after the opening operation of the opening / closing devices 36a and 36b.
As shown in FIG. 12, the water supplied through the pipe 5 is supplied to the initial drain pipe 9 for a predetermined time (t) or for a predetermined number of pulses.
After a predetermined time (t) or a predetermined number of pulses have elapsed, the flow path switching devices 93 and 93 are controlled to be closed, and water is supplied through the water supply passage 35. The water supply is supplied into the rice washing machine 3. According to the above-described control, during the initial period when water supply is not stable or when the flow rate sensor 34 is not stable, water is discharged outside the machine and water is supplied from the stable period.
The accuracy of the water addition / subtraction control can be greatly improved. 13 and 14 are diagrams showing another embodiment, and FIG.
As described above, an orifice 95 is provided in the water supply passage 35, and a differential pressure sensor 96 for detecting a pressure difference between the upstream and downstream of the orifice 95 is provided. As shown in FIG. 14, when another faucet was opened or closed, the output of the flow rate sensor 34 was not measured correctly with respect to the actual flow rate, and as a result, the water level was shifted. Providing the orifice 95,
The upstream and downstream differential pressure is detected by the differential pressure sensor 96, and by using this differential pressure, even if the flow rate fluctuates temporarily, it is possible to follow the flow rate, and to perform accurate water addition and subtraction. The operation of the above embodiment will be described below. For the grains stored in the rice storage tank 2 of the rice washing rice cooker 1, various items are set by operating the operation device 19, setting data, various sensor states, and the like are confirmed. White rice is supplied from the rice storage tank 2 to the rice washer 3 and is washed in the rice washer 3, and the water level is detected by detecting a rotation value at which the flow rate sensor 34 rotates per unit time. A flow value per unit time is calculated based on the rotation value, and a correction amount for the reference flow value is calculated. The flow rate value per unit time is added, and until the added value reaches the water supply amount set by the operation of the water adding / decreasing means 64, the control device 20 controls the opening / closing device 36a to be in the open state, and the rice washing Water supply into the vessel 3 is continued. When these operations are completed, both the washed rice and the water are dropped and supplied into the rice cookers 4a and 4b, and are immersed. When the rice is cooked and cooked, the rice is cooked for a predetermined period of time set by the operation of the washing unit 71 and the rice is cooked.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of the present invention. FIG. 1 is a block diagram. FIG. 2 is a diagram showing a relationship between an output value of a flow sensor and a water pressure on a water supply side. FIG. 3 is a diagram showing a relationship between a rotation speed per unit time of a flow sensor and a correction value. Fig. 5: Overall front view of rice-washing rice cooker [Fig. 6] Overall side view of rice-washing rice cooker [Fig. 7] Overall plan view of rice-washing rice cooker [Fig. 8] FIG. 9 is an enlarged cross-sectional view of the rice washing unit. FIG. 9 is an enlarged plan sectional view of the drainage unit. FIG. 10 is an enlarged front view of the operating device. FIG. 11 is a block diagram . FIG . FIG. 13 is a diagram showing another embodiment, and a block diagram. FIG. 14 is a diagram showing another embodiment, and is an output diagram of a flow sensor. [Description of References] 2 Rice storage tank 3 Rice washing machine 4a Rice cooker 4b Rice cooking vessel 19 the operating device 20 the control device 34 flow rate sensor 35 water supply path 36a switchgear 36b switchgear 93 channel switching Device 94 initial drainage pipe

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroshi Tsuchiya 1-Yachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Engineering Department (56) References JP-A-5-123244 (JP, A) -152217 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A47J 27/16

Claims (1)

(57) [Claims] (1) A rice storage tank (2) for storing white rice, a rice washer (3) for washing or adding water to the white rice supplied from the rice storage tank (2), and then immersing the rice in the rice storage tank (2) In the rice-washing rice cooker provided with the rice cooker 4 disposed below the cooker 3 and the control device 20 for controlling the operation thereof, the water supply passage 35 is opened and closed in the middle of the water supply passage 35 for supplying water to the rice washer 3. And a flow rate sensor 34 for detecting a flow rate.
Outputs the number of rotation pulses from the flow rate, and the controller 20 calculates the flow rate value per unit time from the time required to count the number of rotation pulses per unit time or the specified number of rotation pulses by the flow sensor 34. Means for converting, and means for correcting a flow rate value per unit time from a relationship between a flow rate sensor output value per unit time and a flow rate correction value set in advance, the unit corrected by the correction means. every predetermined time the flow rate value per time or integrated every predetermined rotation pulse number, so that the integrated value is opened controls the opening and closing device 36 by the controller 20 until a predetermined flow rate
In the rice washing rice cooker to be constituted, the opening and closing device 3 of the water supply passage 35 is provided.
6, a flow path switching device 93 is provided on the lower side of the
During a predetermined time (t) or a predetermined number of pulses from the opening operation of No. 6
Discharges the water supplied through the water supply channel 35 to the outside of the machine,
After the elapse of the predetermined time (t) or the elapse of the predetermined number of pulses,
Configuration for switching the flow path switching device 93 to supply the rice into the rice machine 3
Mizukagen controller of bran rice cooking machine, characterized in that the the.