JP2006068111A - Rice washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the washing of a jacket part or a drain pipe. <P>SOLUTION: A rice washing means receiving the supply of a measured predetermined quantity of rice from a measurement means, washing the rice and delivering it to a cooking pot or a vessel waiting in the lower part, is constituted of a rice washing tank, an agitating bar disposed in the rice washing tank and rotating around a vertical shaft, the jacket part connected to the lower part of the rice washing tank, a rice delivery valve opening/closing a rice delivery port formed in the jacket part, a drain box connected to the jacket via the drain pipe and having a drain valve and/or a water level valve, a water supply means supplying water from the lower part to the interior of the rice washing tank, and an air bubble supply means supplying air bubbles from the lower part to the interior of the rice washing tank. The rice washing tank is provided with an overflow port, is supplied with water by a lower water supply means to the full capacity of the rice washing tank, opens the drain valve and/or the water level valve from the full capacity state, cuts off the water supply to the jacket part and allows the bubble supply means and the agitating means to operate. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a rice washing apparatus, and relates to an improvement of rice washing tank washing.

In the rice-washing rice cooker having rice storage means, rice weighing means, rice washing means, rice cooking means, and control means, before the rice washing tank is filled with a predetermined amount of rice, the inside of the rice washing tank is washed. is there. For example, when a rice washing signal is received, the shower water is supplied from the top immediately before supplying a predetermined amount of rice, and the washing is performed while rotating the stirring bar inside (Patent Document 1), or reservation is made according to the setting of reserved rice cooking There is a mode of cleaning while supplying shower water into the tank every predetermined time during the waiting time (Patent Document 2).
JP-A-8-228920 Microfilm of Japanese Utility Model Application No. 2-111203 (Japanese Utility Model Application Publication No. 4-68713)

  However, the above-described known examples relate to the purpose of removing the soot remaining on the inner wall of the rice washing tank, and the cleaning when scum or the like enters the inside. However, if washing is repeated, soot accumulates on the jacket part and drainage part provided below the washing tank and requires separate washing. For this reason, the jacket portion is made detachable so as to facilitate disassembly and cleaning. However, the cleaning of the lower jacket portion is left unsanitary if left to the worker and needs to be improved.

  In order to solve the above-mentioned problems, the invention of claim 1 is characterized in that the rice washing means for receiving rice from the weighing means and washing the rice and waiting in the downward direction is a rice washing tank, A stirring bar that rotates around the vertical axis in the rice washing tank, a jacket portion connected to the lower portion of the rice washing tank, a rice removal valve that opens and closes the rice discharge port formed in the jacket portion, and a drain pipe in the jacket And a drainage box having a drainage valve and / or a water level valve, a water supply means for supplying water into the rice washing tank from below, and a bubble supplying means for supplying bubbles from below into the rice washing tank, The rice washing tank is configured to supply water and bubbles to the jacket portion while the rice washing tank is empty and the drain valve and the water level valve are closed and the lower water supply means, bubble supply means and stirring means are operated together. The configuration of the cleaning device.

  When configured as described above, bubbles are generated in the water flow with the water supplied by the downward water supply to the rice washing tank in an empty state, so bubbles are generated in the water flow, but when pressure acts on the water flow, The jacket portion is circulated through the jacket portion while generating bubbles.

  According to a second aspect of the present invention, there is provided a rice washing tank and a rice washing means which receives a predetermined amount of rice supplied from the weighing means and rinses the rice into a rice cooker or container waiting in the downward direction. A stirring bar that rotates about the vertical axis, a jacket part connected to the lower part of the rice washing tank, a rice drain valve that opens and closes a rice draining port formed in the jacket part, and a jacket connected to the jacket through a drain pipe, And a drainage box having a drainage valve and / or a water level valve, a water supply means for supplying water into the rice washing tank from the lower part, and a bubble supplying means for supplying bubbles into the rice washing tank from below. Open the drainage valve and / or the water level valve from the full water condition, shut off the water supply to the jacket and shut off the water supply to the bubble supply means. Means constituting in operation.

  With this configuration, the drainage pipe, drainage pipe, drainage valve, and water level valve are circulated through the jacket, drainage pipe, drainage valve, and water level valve while the drainage valve and water level valve are open and the water pressure is high and the water pressure is high. Wash the drain valve and water level valve.

  According to the first aspect of the invention, since the jacket portion is washed by circulating the jacket portion while pressure is applied to the water flow and accompanied by the generation of bubbles, the jacket portion can be easily washed without being disassembled and cleaned. Can do. In particular, the ultrasonic cleaning can be performed by generating bubbles together with the downward water supply, and the cleaning effect is high.

  According to the second aspect of the present invention, the washing tank is temporarily filled with water, and bubbles are generated in the subsequent drainage, so that the drainage pipe part, drainage valve / water level valve part is mainly washed by washing under high water pressure. Ultrasonic cleaning similar to the above can be performed with bubbles.

  The jacket portion connected to the lower part of the rice washing tank and the inside of the drain box connected to the jacket portion by a drain pipe are washed while generating bubbles.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
A front view of a rice-washing rice cooker used in a canteen or the like for supplying a large amount of cooked rice is shown in FIG. 1, a side view thereof is shown in FIG. 2, and a side sectional view thereof is shown in FIG.

  A support member 1 for vertically or horizontally framing a U-shaped or rectangular tube material is composed of a rectangular base frame 1a having casters in the lower part, left and right struts 1b and 1b having a predetermined width and height, and left and right struts 1b and 1b. Are composed of a plurality of horizontal rails 1c, 1c,. The lateral movement frame 2 provided so as to be movable left and right along the horizontal rails 1c and 1c is configured to support a rice storage tank, a rice washing tank, and the like. The lateral movement frame 2 is configured in an L shape in a side view by an upper planar lateral frame portion 2a and a longitudinal frame portion 2b connected to a rear end portion of the lateral frame portion 2a.

  The horizontal frame 2a is provided with a plate-like partition member 3 for mounting each equipment, a rice storage tank 4 is provided on the upper part, a rice washing tank 5 is provided below the rice storage tank 4, and the rice washing tank 5 Below, the rice cooker main body 6 is arranged at intervals. The rice cooker body 6 is composed of a rice cooker 7, a pot heating burner 8, a pull-out base 9, and the like. In addition, the rice cooker main body 6 is provided in two left and right, and as the left and right movements along the horizontal frame 1a of the horizontal movement frame 2, the integrated tank of the rice storage tank 4 and the rice washing tank 5 is left and right for rice cooking. It is the structure which can each oppose to the upper position of the apparatus main bodies 6 and 6.

  The rice storage tank 4 includes an upper main tank 4a having a square cross section and a lower funnel-like hopper portion 4b, and a measuring drum case 10 is attached to a lower end portion of the hopper portion 4b. The measuring drum case 10 is provided with a measuring drum 13 having a cylindrical drum portion 11a formed with a notch 11 and front and rear side wall portions 12a and 12b, and penetrates the front and rear side wall portions 12a and 12b. The drum shaft 10 is supported by the horizontal shaft 14 so as to be rotatable. In addition, a motor 15 is mounted on the rear side of the drum case 10 so as to directly link the shaft 14, and rice that has flowed from the storage tank 4 through the notch 11 to the measuring drum 13 by a certain amount is filled and rotated. When the position of the notch 11 is reversed downward to reach the discharge port 16 formed in the drum case 10, the flow is discharged from the measuring drum 13.

  The partition member 3 has an opening 17 corresponding to the discharge port 16, and is configured to feed a predetermined amount of rice from the rice storage tank 4 to the rice washing tank 5 by rotating the measuring drum 13 by a predetermined number of rotations. Yes. Further, a predetermined amount can be supplied by detection of a rotation sensor (not shown) that counts the number of times of feeding.

  The drum case 10 and the funnel-shaped hopper 4b are integrally configured, and after the upper main tank 4a is removed, the integrated body of the hopper 4b and the drum case 10 can be removed from the partition member 3. Composed. That is, on the rear side, an engagement portion 20 is provided on a hook-like portion 18 formed on the partition member 3 so that the engagement convex portion 19 of the drum case 10 can be engaged and disengaged, and on the front side, the partition member 3 and the drum case 10 are provided. An attachment / detachment engagement stay 21 that can be attached / detached and fixed with a screw is provided, and the engagement with the drum case 10 is released by loosening the screw 22 and rotating the stay 21 about the center of the screw portion. The drum case 10 is formed so that the lower end edge thereof fits into the rectangular opening of the partition member 3, but the engagement stay 21 is disengaged and the side thereof is lifted slightly upward to form the lower end edge. By releasing the fitting from the partition member 3 and pulling it obliquely forward from the front, it is possible to release the engagement of the engaging portion 20 while releasing the fitting of the lower end edge on the rear side.

  The rice storage tank 2 and the metering section are configured to cover the outside with a cover member 23, and the left and right side walls and the rear side wall are suitably fixed to the partition member 3 and the like. It is configured as a door that can be opened and closed as a fulcrum. Therefore, inspection and attachment of the rice storage tank 2 and the drum case 10 can be performed with the front side wall 23a being released. Reference numeral 24 denotes a rectangular cover plate that is detachably covered from above.

  25 is a discharge shutter for draining rice provided on one side (front side in the illustrated example) of the funnel-shaped hopper portion 4b, which shuts off the rice in a standing posture and rotates around a shaft support portion to form an inclined guide chute. It is configured to be able to discharge the internal rice.

  A shutter 55 is connected to the electric motor 15 to open and close the discharge port 16. The rotation of the motor 15 is connected to the shutter support shaft 58 through the link mechanisms 56 and 57, and the drum opening coincides with the discharge port 16. In this case, the shutter 55 is in the interlocked state so that the shutter 55 is opened. For this reason, the shutter 55 is always in a closed position, preventing scattering of diffused water in the middle of the rice washing in the rice washing tank 3 and preventing water from entering the measuring drum 13 (FIG. 8).

  FIG. 9 shows a cross-sectional view of the weighing drum 13, and gaskets 26 a and 26 b for inclining and guiding rice are provided between the funnel-shaped lower hopper 4 b and the drum case 10, and the outer circumference of the weighing drum 13 and the inside of the drum case 10 are A gap t (for example, about 1 mm) that does not crush even when the rice is infiltrated with the circumference, and even if rice enters the gap t from the upper side, the invading rice is exposed to the outside. Among the gaskets, the gasket 26a supporting structure on the upper side of the rotation of the measuring drum 10 is fixed to the drum case 10 extension portion 10a by bolts 27 and nuts 28, and the nut 29 is further connected to the extension portion 10a. It is interposed between the gasket 26a holding metal fittings. Therefore, a space in which the rice can be retracted from the peripheral portion by the nut 29 can be formed, and even if the rice unexpectedly enters the space between the measuring drum 13 and the drum case 10, it can easily escape with the rotation of the measuring drum 13.

  The measuring drum 13 is repeatedly rotated and stopped by the motor 15 in a fixed direction A. The stopping position of the measuring drum 13 is the position indicated by the solid line in FIG. That is, a vibration means (pump 66 for supplying air described later in the figure) is attached to the side wall of the funnel-like hopper 4b on the inclined wall near the side where the rotary rear gasket 26b is present to promote the internal rice flow. In addition, the opening edge of the measuring drum 13 stops at the rear position after the rotation of the vibration side gasket 26b, and the other opening edge stops at the front position of the non-vibration side gasket 26a. Therefore, while the rice that is about to enter by the vibration of the vibration means is shielded by the measuring drum 13, the accuracy of the supply amount can be stabilized by naturally feeding the rice into the measuring drum 13 on the non-excitation side.

  As shown in FIG. 3, the rice washing tank 5 includes a receiving cylinder part 31 for guiding rice supplied from the drum case 10 in the ceiling part, a cylindrical body part in the middle part, and a hopper-like part in the lower part. A filter 33 made of a mesh body having an opening to the extent that does not allow rice grains to leak at the boundary between the hopper-like portion and the jacket portion 32, with the jacket portion 32 connected to the lower portion of the hopper-like portion of the rice washing tank 3. Is provided.

  A vertical rotating shaft 34 is provided at the center of the rice-washing tank 5, and a plurality of stirring rods 35, 35... Formed by bending a rod-like body into an inverted L shape are provided on the rotating shaft 34. It is attached to 34 by welding or the like. The rotating shaft 34 is rotated by a rice washing motor 36 via a bevel gear mechanism 37, and is configured to agitate the rice and water in the tank by the rotation.

  The rotating shaft 34 is a hollow shaft, and the inner shaft 38 is loosely fitted in the outer hollow shaft 34 so as to be slidable up and down, and is detachably conical at the lower end of the shaft 38 extending downward. A rice drain valve 39 is provided. The upper end of the shaft 38 is moved up and down by an interlocking mechanism such as a cam 41 driven by a rice removal valve drive motor 40, a dropping arm 90, and the like, and the opening / closing control of the rice removal valve 39 is performed. When the rice drain valve 39 is opened, the rice in the rice washing tank 5 is configured to fall into the inner pot of the lower rice cooker body 6.

  Reference numeral 42 denotes an inspection lid that covers an inspection window 43 that opens from the upper cylindrical portion to the conical portion that continues from the upper cylindrical portion on the front side of the rice washing tank 5, and between the left and right sides and the conical portion. A hinge 44 is provided, and the inspection lid 42 is maintained in a covered state with a so-called patchon-locking fastener 45 on the other side. Accordingly, the opening / closing support shaft center C of the hinge 44 is inclined along the conical portion, and in the opened state, it does not unexpectedly return to the cover shape, and always maintains the open position, and the inspection work is performed. It will not interfere with. If the position restricting means by the elastic biasing force is configured in the hinge 44 portion, it can be fixed and maintained at the cover position or the open position, and it is more convenient because it prevents unexpected rotation around the axis.

  The supply of water to the rice washing tank 5 is performed by a main water distribution pipe 46 communicating with the water tap, an upper water supply valve 47, two flexible upper water supply pipes 48, 48, and an upper water supply port 49 on the ceiling of the rice washing tank 5. 49, the upper water supply route via 49, and the lower water supply route branched from the main water distribution pipe 46 through the lower water supply valve 50, the water distribution pipe 51, and the lower water supply port 52 via the jacket portion 32. Each water supply route has a flow sensor.

  That is, in the vicinity of the drum case 10, two upper water supply pipes 48, 48 communicating with the main water distribution pipe 46 are arranged based on the partition member 3, and the water distribution pipe 51 provided with the partition member 3 in a penetrating manner is provided in the water distribution pipe 51. A lower water supply pipe 53 is connected.

  A drain box 60 is provided at the lower rear of the rice washing tank 3. A drainage box 60 having a drainage port 61 has two jackets whose upper ends are connected to an opening 62 a that opens to the upper side surface of the rice washing tank 3 and whose one end communicates with the jacket portion 32. The other ends of the drain pipes 63a and 63b are connected. Drainage from the jacket drain pipes 63a and 63b is performed by opening and closing the drain valve 64, and the water level valve 65 adjusts the water level to a predetermined level while lowering the water level in the rice washing tank 5.

  The drain box 60 is always closed by the drain valve 64 and the water level valve 65. However, when draining the water in the rice washing tank 5, the jacket drain pipes 63a and 63b, the drain valve are drained from the filter 33 of the jacket portion 32. 64 and / or the water level valve 65, the drainage box 60, and the drainage port 61. The drain valve 64 and the water level valve 65 are opened and closed by appropriate opening and closing outputs. Further, a float sensor (not shown) with electrical contacts for detecting the amount of water in the rice washing tank 5 is provided in the upper part of the rice washing tank 3.

  The water supply to the rice washing tank 5 is made up of the upper water supply route via the upper water supply port 48 in the ceiling portion of the rice washing tank 5, and the lower water supply route via the lower water supply port 51 and the lower water supply pipe 53 via the jacket portion 32. Although it is configured in two systems, an air ejection pipe 67 that communicates with the pump 66 and ejects air is arranged in parallel with the lower water supply pipe 52 of the lower water supply route, and in parallel with the water of the lower water supply route. In addition, the lower water supply pipe 52 and the air jet pipe 67 are provided at positions eccentric from the center of the jacket part 32 in FIG. A swirling flow in which water is mixed is easily generated.

  Further, during the rice washing operation in the rice washing tank 5, the rotation direction of the large and small stirring rods 35, 35... Provided in the rotating shaft 34 in the rice washing tank 5, the water ejection direction from the lower water supply route, and the air ejection pipe 67. It is comprised so that the air ejection direction from may become a mutually reverse direction.

  That is, during the rice washing operation, the stirring rods 35, 35... Are rotated counterclockwise as shown in FIG. 10B, and the direction of water jetting from the lower water supply route and the air jet pipe 67 is clockwise. Spout to rotate. Then, especially in the vicinity of the bottom in the rice washing tank 5, the rice is agitated by the stirring rods 35, 35.

  In FIG. 11, the rice washing process is performed in the order of the scouring process (T1), the polished rice / bubble washing process (T2 to T4), the rough rinsing process C (T5 to T7), and the finishing rinsing process D (T8 to T12). The In the brewing step (a), the rice washing motor 20 is placed in a driving state while water is being supplied by the upper water supply valve 46 while both the drain valve 64 and the water level valve 65 are open (section T1). , 35... In the rice polishing / bubble washing process b, the wet rice is stirred by driving the rice washing motor 36 while the upper and lower water supply is stopped (sections T2, T4). The bubble washing rice process (section T3) is incorporated in the course of the polishing process. In the rough rinsing step C, after the stirring state (section T5) due to the drifting by the opening operation of the upper side water supply valve 47, the drain valve 64 and the water level valve 65 are both closed, and water is supplied by the upper and lower side water supply valves 47, 50. It is set as the said bubble washing state (section T6) which drives and blows off air from the air jet pipe 67. FIG. After the section T6, both the drain valve 64 and the water level valve 65 are opened, and the rice-grinding process in which only the rice washing motor 36 is driven is performed (section T7).

  Finally, in the finishing step D, both the drain valve 64 and the water level valve 65 are closed and the water is supplied from the lower water supply valve 50 to make the bubble washing state (section T8) driven by the pump 66. It continues until the float sensor (not shown) is turned on, and when the water is full, the pump 66 is temporarily switched to the stopped rice washing (T9), so that the rice washing motor 36 is stopped and the rice washing is finished. In the section T11, the upper water supply valve 47 is opened to supply water, and the rice remaining on the tank wall surface is washed away. Thereafter, the upper side water supply is stopped, and the rice washing process is terminated after a predetermined time (section T12) has elapsed.

Next, operation of the rice cooker will be described.
First, in a control computer equipped with a memory and a CPU (not shown), the reservation time, the amount of supplied rice, the amount of water supplied to the washing tank, the washing time (rotating time of the stirring bar 35), the polishing time (rotating time of the stirring bar 35), Conditions necessary for rice cooker operation such as the time for washing in the rice washing tank or the pot, the number of times of washing, the overflowing time of the washing tank, the draining time of the washing tank and the steaming time are arranged on the front side door portion of the cover member 23. Setting is made by the operation display device 70.

FIG. 12 shows a state in which the switch cover 71 of the operation panel (operation display device) 70 is closed (FIG. 12A) and an open state (FIG. 12B).
On the operation panel 70, a process display section 72, a reservation switch 73, a setting switch group 74, a start switch 75, a help switch 76, and the like are arranged, and a liquid crystal display screen 77 is provided below. In the process display section 72, a preliminary process consisting of rice weighing, washing and soaking (immersion), and preparation of the pot, soaking (immersion), ignition, rice cooking, unevenness, rice cooking process consisting of cooking, respectively, It is possible to identify which process is currently being executed by turning on the LEDs 78, 78... Provided for each process display unit, so that light is emitted in two colors of green in a normal operation state and red in an abnormal state. , So that the driving state can be easily recognized.

  The setting switch group 74 is provided with “UP (+)”, “DOWN (−)”, and “Feed” switches on the top, bottom, left, and right, and main setting changes such as the number of pots to be cooked, cooking time, etc. It is the structure which can be set.

  The operation panel 70 has the switch cover 71 that opens and closes at the horizontal axis fulcrum. When the cover 71 shown in FIG. 12A is closed, the liquid crystal display screen 77 is a normal operation display screen. A is displayed. In the form of this embodiment, the total number of times of rice cooking (corresponding to the number of rice cookers; hereinafter referred to as the total number of rice cookers), the number of times of continuous rice cooking (hereinafter referred to as the number of pots to be cooked), the capacity to be processed with a single rice cooker, (Mode), the total soaking time and the steaming time in the rice cooking preliminary process and the rice cooking process are displayed.

  FIG. 12B shows a state where the switch cover 71 is opened. The cover 71 is provided with a cover open / close detecting means 79 comprising a photocoupler and a reflecting plate and a locking portion 80. When the cover 71 is opened, the cover open / close detecting means 79 is turned off, and the liquid crystal display screen 77 is operated normally. A screen on which the rice cooking conditions can be set immediately from the display screen A is displayed. Hereinafter, this screen is referred to as a rice cooking condition setting screen B. Rice cooking condition setting screen B is a screen that can set any rice cooking condition among the amount of rice cooking, water adjustment, washing method, soaking time, steaming time, cooking method (mode), ignition method, and for each cooking condition The rice cooking conditions can be determined by setting switches 81, 81.

FIG. 13 shows a normal operation screen A during normal operation on the operation panel 70 according to this embodiment.
First, when the power switch 82 is turned on (step 101), the normal operation screen A, which is a standard screen, is displayed in step 102. The amount of cooked rice is 5 liters, the cooked rice for each pot, the dipping time and the steaming time are displayed. At this time, when the reservation switch 73 is turned ON, the current time, the method of starting operation, and that reservation operation can be performed are displayed. Next, when it is desired to change the rice cooking condition displayed on the screen A, the switch cover 71 is opened, the rice cooking condition setting screen B is displayed, and the setting condition can be changed (step 103).

  For example, when the amount of cooked rice is changed from “5 升” to “3 升” and the mode is changed from “one pot” to “continuous”, the normal operation screen A is switched to “3 升” and “continuous”. Next, when the “UP” switch is operated with the switch group 74 and the planned number of hooks is set from “3 hooks” to “10 hooks”, the display of the planned number of hooks is changed to “10” (step 104).

  Next, when the start switch 75 is pressed, the operation is started, and “in operation” is displayed (step 105). When the cooking of the pots is completed several times, for example, if the rice is in a shortage state, the display of “Driving” changes to a flashing display of “Rice Supply”. When the rice supply is over, automatic driving resumes. At this time, if the help switch 76 is pressed, the remaining time is displayed (step 106).

  During automatic operation, for example, if the hook is not ready (step 107), the display “in operation” flashes. At this time, when the help switch 76 is turned on, a treatment method is shown and an instruction to set the inner hook is displayed. If the ignition is in the manual mode after the inner hook is set (step 108), an ignition call sound is heard, and at the same time, the “running” display blinks to prompt ignition. When the ignition switch is turned on and the operation is resumed and a predetermined time elapses, a rice cooking completion sound is emitted (step 109). At the same time, the display of “in operation” flashes. An instruction to complete the work is displayed.

  Next, a cleaning function based on the operation of the operation display device (operation panel) 70 will be described. The inside can be washed while the rice washing tank 5 is empty, and can be executed by selecting a dedicated washing mode. The transition to this cleaning mode is as follows. After turning on the power switch, put it on the rice cooking condition setting screen B, then press and hold the menu switch 80 to enter the expansion mode, select the “expanded function initial screen” that appears on the screen, then select “Rice Washing Tank” Although it is configured to enter the cleaning mode by designating, a dedicated mode switch may be configured.

  When the above washing mode is selected, each signal is output to the upper water supply means, the lower water supply means, the drain valve 64, the water level valve 65, the rice washing motor 36, and the pump 66 based on FIG. In the illustrated example, the cleaning mode is configured in five stages of steps t1 to t5. In step t1, water is supplied by the lower water supply means, the water level valve 65 and the drain valve 64 are closed together, the rice washing motor 36 is driven, and the pump 66 is driven, and the bubble cleaning state is set. Therefore, in this step t1, the agitation is performed in the bubble supply state while the drainage is shut off and water is supplied by the lower water supply means, and mainly the cleaning around the filter 33 in the jacket portion 32 is performed.

  Step t2 is a state in which the state of step t1 continues, the rice washing tank 5 becomes full, and the float sensor is turned on. Dusts that remain floating for a while can be discharged by overflow. After continuing the predetermined time, the process enters the step t3 of turning off the water supply means and opening the water level valve 65 and the drain valve 64. Since this step t3 drains vigorously in a state where bubbles are generated because the pump 66 is driven in a state in which a constant water pressure is secured by draining from each valve from a full water state, the drain pipes after the filter 33 in the jacket portion 32 63a, 63b, the drainage valve 64 / water level valve 65, and the drainage path of the drainage box 60 are cleaned.

  Subsequently, in step t4, water is supplied by the upper water supply means while driving the rice washing motor 36 and the pump 66, and the inside of the rice washing tank 5 is rinsed and washed. When the rinsing process for a predetermined time set in advance is completed, the water supply means is turned off, and the rice washing motor 36 and the pump 66 are stopped with a predetermined time delay (step t5), thereby ending the cleaning mode.

  As described above, in steps t1 and t3, bubbles are generated along with the water flow, and the above-described parts can be washed. However, the pump 66 is driven while maintaining a high water pressure from the lower water supply means (t1) or from the full water level (t3). This facilitates the cleaning effect.

  The above rice washing mode is configured to enter the extended mode from the standard rice washing rice setting state, and enter the washing mode by specifying in the order of selecting the expanded function initial screen and selecting the rice washing tank washing. May be configured to enter the cleaning mode at that time. That is, in the so-called reservation rice cooking mode in which rice washing is started or rice cooking is ended after a predetermined time (or day), the washing mode is entered in connection with turning on a reservation switch for setting various reservation conditions and confirming them. You may comprise. For example, it is started at the same time as the reservation switch-on operation, or is executed every predetermined time during the reservation time. In the latter case, in addition to setting the reservation conditions, a means for setting the cleaning timing and its operation means are required.

  As described above, when the cleaning mode is entered in accordance with the reservation switch operation, the normal worker makes the next reservation and finishes the work, but the inside of the washing rice tank 5 can be cleaned each time. It has a great effect on water stability and cleaning.

  FIG. 15 is configured so that even if the float sensor as the water level sensor is defective, it can be cleaned. That is, a flow rate sensor is provided in the middle of the sewage supply means to constitute a means capable of detecting the presence or absence of a predetermined flow rate, and even when the float sensor does not detect a full water condition in step t3 in the washing mode, the flow rate and the rice washing tank A full water state is estimated in relation to the capacity and the water supply time (S5 to S8), and forced switching to the next process is performed. With this configuration, the cleaning mode can be completed with certainty.

The operation of the above example will be described.
The power switch 82 is turned on, and rice cooking conditions are set according to each operation on the operation panel 70. After setting various rice cooking conditions, when the start switch 75 is turned on, the operation is started as in the rice cooking flow shown in FIG.

  That is, after the setting input of rice cooking conditions is completed, when the start switch 75 is pressed in step 300 shown in FIG. 16, the rice in the rice storage tank 4 is weighed with a measuring drum in step 301 and the set amount of rice is supplied to the rice washing tank 5. Wash the rice in step 2.

  The rice washing process in Step 2 is a brewing process in which rice is stirred while dripping water, a polishing process in which water is drained once and drained and the rice is stirred in a wet state, a rough rinsing process in which rice is stirred at a predetermined water level, and water is stored in a tank. It consists of a final rinsing step that stirs while overflowing. The rough rinsing process and the finishing rinsing process mean a rice washing process in a narrow sense in which rice is stirred in water.

  After the broad rice washing process in step 302, the process proceeds to a water addition / reduction process in step 303. In this step 303, the microcomputer calculates the amount of water corresponding to the amount of rice in the rice washing tank 3, the quality of the rice, the temperature, the water temperature, etc., supplies the rice washing tank 5 with water, and after the rice washing tank 5 is full, the water level valve 65 "Open" for the calculated time to add or subtract water.

In step 304, the washed rice in the rice washing tank 5 and the measured and adjusted water in step 303 are dropped into the rice cooker 7 by opening and closing the rice discharge valve 39.
In step 305, the rice in the rice cooker 7 is immersed in water for a specified time. After the lapse of the specified time, ignition is performed at step 306, rice is cooked at step 307, steaming is performed at step 308, cooking is performed at step 309, and predetermined cooked rice is completed (step 310).

  A predetermined amount of rice is weighed and supplied to the rice washing tank 5. In the rice washing tank 5, the rice is washed with water supply by driving the rice washing motor 36 and the like. That is, it is processed in the order of the wrinkle removal process a, the polishing process b, the rough rinse process c, and the finish rinse process d.

When the above rice washing process is completed, the rice is cooked after the dipping process.
In addition, before the start switch 75 is turned on, a reservation screen is output by operating a reservation switch, and cooking can be performed at a scheduled time by setting a cooking time and the like.
The jacket part 32 and the discharge part can be washed by executing the washing process before entering the rice washing rice cooking process as described above.

  In the above example, the cleaning mode can be set by setting the cleaning mode at any time. However, it is more convenient if the cleaning mode is periodically entered. That is, the cleaning mode shift time can be set, and cleaning can be automatically executed when a predetermined time is reached based on the timer function. Therefore, considering the last cooking time and the next cooking time, for example, it is time to clean up after the kitchen. Washed rice or cooked rice can be performed under conditions. In addition, when the rice cooking operation is being performed at the set time, the cleaning can be surely executed by configuring the operation so that the operation ends and the cleaning mode is entered.

  Further, in addition to the configuration in which the cleaning mode is entered at the set time described above, the cleaning can be started at the set date and time by adopting a configuration in which the date and time can be selected and set. Furthermore, it is possible to set the transition to the cleaning mode with the cleaning interval. That is, the cleaning mode can be automatically performed by setting the cleaning interval until the next time, such as three times / day.

  17 to 22 relate to conveyance control in the white rice conveyance apparatus. Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 2004-51325, a mode in which white rice is distributed and transferred from a storage unit toward a predetermined rice-washing rice cooker is known.

  The configuration is shown in FIG. That is, 101 is a rice storage / conveyance device. A rice storage tank 107 having a flange on the upper edge is placed on a box 106 in which front and rear panels 103 and left and right panels 105 are fixed to a frame 102 by fasteners (not shown). The rice storage tank 107 is provided with a feeding device 108 for metering out the rice in the rice storage tank 107, and the rice that has been fed in communication with the discharge port 108a at the bottom of the feeding device 108 is described below. The apparatus includes a blower 111 for transporting to the rice storage 110, and the front panel 103 is provided with a cover 113 that is detachably attachable and closable and has an opening 112 for intake of the blower 111. A bottom cover 115 for opening and closing the bottom of the rice storage / conveyance apparatus 101 is provided along the crosspiece 114 provided at the lower part of the frame 102 at the lower part.

  The opening 112 is formed in the front panel 103 because the rice storage / conveyance apparatus 101 is usually installed at the corner of the room, dust tends to accumulate, and avoids suction from the back and sides where the humidity is high. This is for sucking in as clean air as possible.

  The rice storage tank 107 is an asymmetrical tank in which the lower discharge side is brought close to one side of the left and right panels 105, thereby preventing the occurrence of a bridging phenomenon in which the flow is blocked at the discharge portion, and at the same time, By providing the blower 111 below the slope, the feeding device 108 and the blower 111 can be easily inspected and maintained.

A non-illustrated slide shutter is inserted between the lower end of the rice storage tank 107 and the upper end of the feeding device 108 so that the feeding by the rice feeding device 108 in the rice storage tank 107 can be adjusted.
Further, a fastener 115 such as a knob bolt is provided on the upper part of the feeding device 108 so that the rice storage tank 107 can be easily and manually detached from the feeding device 108. When the fastener 115 is removed, the rice storage tank 107 is removed. It is removed upward so that rice storage tanks storing rice of different varieties can be easily replaced.

  Further, the front panel 102 is provided with a storage portion 116a for storing a driving operation panel 116, and a motor 117 for driving the feeding device 108 from the driving operation panel 116, a motor 118 for driving the blower 111, and an automatic rice washing rice cooker. In the middle of the wiring 120 connecting the 109 operation control panels 119, a winding unit 120a is provided that enables the operation control panel 116 to be removed from the storage unit 116a.

  FIG. 21 shows the increase / decrease state of the rice in the storage box 110. The rice shortage sensor 154 position is turned on when the amount of rice in the storage box 110 is in the state shown in the line A, and outputs the rice shortage state. For example, the line A is set to about 10 kg of rice. In addition, when rice is supplied from this state and the rice shortage sensor 154 is again buried in the rice and turned off, the rice is deposited in the line B (set to about 45 kg of rice). Further, at the position where the full sensor 155 is turned on upon receipt of rice supply, it is deposited in the state of line C (set to about 60 kg).

  Therefore, when a plurality of rice shortage sensors 154 are input as described above, a predetermined amount is secured by temporarily interrupting rice supply when the rice shortage sensor 154 returns to OFF without being full (line B). It is supposed to be possible. In addition to this embodiment, in the case where a plurality of automatic rice-washing rice cookers are installed and branched and supplied to each rice storage tank, early supply to a plurality of rice storages 110 can be performed, and the subsequent No interruption of work.

  In the conventional conveyance control, when the full sensor 155 is not turned on even if the conveyance time exceeds a predetermined time, for example, 30% or more of the standard time X, the structure is forcibly stopped. For this reason, when the storage rice tank 107 side which is the conveyance source is bridged, it is forcibly stopped and an alarm is output.

For this reason, it is set as the following structures. The time X from when the rice shortage sensor 154 until the full sensor 155 is turned on is set by an experimental value, and the limit value of the transport time is, for example, 30% increased by 1
. 3X.

  When performing automatic conveyance from the rice storage and conveyance apparatus 101 to the automatic rice-washing rice cooker 109, it is possible to confirm whether or not an abnormal stop is necessary by causing the conveyance to be stopped as shown in FIG. That is, based on the flowchart of FIG. 22, it is assumed that the rice storage and conveyance device 101 side is in the rice storage state (step 401), and the automatic mode is selected (step 402). The conveyance is started (step 405) starting from the time when 154 is switched from off to on (step 404). The time X is counted, and the state where the full sensor 155 is turned on within a predetermined time (1.3X in the above example) is set as a normal operation state, and the conveyance is stopped (steps 406, 407, and 408). However, if the conveyance time exceeds the predetermined time in step 406, the status of the rice shortage sensor 154 is confirmed (step 409). When this sensor 154 is off, the rice storage conveyance device 101 side is in the bridge state. It is determined that the transfer has been completed, and the flow is stopped at step 408. However, if the rice shortage sensor 154 remains on in step 409, a forced stop state is entered in step 410. This is because any other abnormal situation can be considered. When this forced stop is reached, an alarm is output (step 411).

  In the above embodiment, when it is determined in step 409 that the rice shortage sensor 154 is continuously turned on once, it is forcibly stopped. .

The front view of the rice-washing rice cooker which shows embodiment of this invention. The side view of a rice-washing rice cooker. Front sectional view of the rice-washing rice cooker. The front view of a rice storage tank and a rice washing tank. The perspective view of a rice storage tank and a rice washing tank. The front view of the rice storage tank and rice washing tank which carried out the cross section partially. The top view of a rice storage tank and a rice washing tank. Side surface sectional drawing of the principal part. Cross section of drum case (A) The side view which shows an action state. (B) The top view which shows an action state. Time chart diagram. The front view of an operation panel. The figure which shows the normal operation screen at the time of the normal operation of an operation panel. Time chart. Time chart. Time chart. The connection front view of a rice storage and conveyance apparatus and a rice-washing rice cooker. Front sectional view of the rice storage and transport apparatus. The side sectional view of a rice storage and conveyance device. Front sectional view of the rice-washing rice cooker. Sectional drawing of a rice storage. flowchart.

Explanation of symbols

4 ... Rice storage tank 5 ... Rice washing tank 6 ... Rice cooker 36 ... Rice washing motor 64 ... Drain valve 65 ... Water level valve 66 ... Pump

Claims (2)

  The rice washing means which receives the supply of rice of a predetermined amount from the weighing means and washes the rice and waits downwards into the rice cooker or the container, the rice washing tank, and the stirring rod which rotates around the vertical axis in the rice washing tank, , A jacket part connected to the lower part of the rice washing tank, a rice drain valve for opening and closing a rice drain port formed in the jacket part, and a drain connected to the jacket via a drain pipe and having a drain valve and / or a water level valve A box, a water supply means for supplying water into the rice washing tank from the bottom, and a bubble supplying means for supplying bubbles into the rice washing tank from below, when the rice washing tank is empty, a drain valve and a water level valve The rice washing part washing | cleaning apparatus comprised so that water supply and a bubble might be supplied to a jacket part, closing and closing a water supply means, a bubble supply means, and a stirring means together.   The rice washing means which receives the supply of rice of a predetermined amount from the weighing means and washes the rice and waits downwards into the rice cooker or the container, the rice washing tank, and the stirring rod which rotates around the vertical axis in the rice washing tank, , A jacket part connected to the lower part of the rice washing tank, a rice drain valve for opening and closing a rice drain port formed in the jacket part, and a drain connected to the jacket via a drain pipe and having a drain valve and / or a water level valve The rice washing tank is composed of water supply means for supplying water from the bottom and bubble supply means for supplying bubbles from below into the rice washing tank. The rice washing tank is provided with an overflow port, and the rice washing tank is Supply rice until it is full, open the drainage valve and / or water level valve from full water, shut off the water supply to the jacket, and configure the bubble supply means and agitation means to operate. Cleaning equipment.

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