JP3852339B2 - Rice washing machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  This invention relates to a rice-washing rice cooker.
[0002]
[Prior art]
  In the rice-washing rice cooker having rice storage means, rice weighing means, rice washing means, rice cooking means, and control means, the rice washing tank can be fed from the upper part via the upper water supply route and also from the lower part via the lower water supply route. It is configured to wash rice by rotating a stirring blade rotating around the vertical axis provided in the rice washing tank while supplying water from the upper water supply route at the time of washing the rice.
[0003]
[Problems to be solved by the invention]
  In the conventional apparatus, while washing water is supplied from the upper water supply route during the rice washing operation, the stirring blade provided in the rice washing tank is rotated to cause the water flow to wash the rice, so the water flow is weak and the rice washing efficiency is low. There was a problem. Therefore, the present invention is intended to solve such problems.
[0004]
[Means for Solving the Problems]
  In order to solve such problems, the invention of claim 1 is a rice washing machine having a rice storage means, a rice weighing means, a rice washing means, a rice cooking means, and a control means, and is provided in the rice washing tank (3). Is configured so that it can be supplied from the upper part and the lower part through the upper water supply route and the lower water supply route, and the rice washing tank (3) is configured so that air can be ejected from the air ejection pipe (27a) attached to the lower water supply route. (3) is configured to allow upper drainage and lower drainage via the overflow pipe (41) and drain valve (44),
In the rice washing tank (3), a stirring blade (17) that rotates about the vertical axis is provided, and the stirring blade (17) is configured to be rotatable forward and backward by a rice washing motor (20).
When washing riceStirring blade (17)Rotation direction, water ejection direction from the lower water supply route, and air ejection direction from the air ejection pipe (27a)WhenThe opposite direction andWhen the polishing water after the rice washing is finished is discharged from the upper part of the rice washing tank (3), the direction of rotation of the stirring blade (17), the direction of water ejection from the lower water supply route, and the air from the air ejection pipe (27a) A configuration in which the stirring blade (17) is rotationally driven so that the ejection direction is the same direction;It is characterized by that. In the invention of claim 1, during the rice washing operation, the stirring blade (17) is rotated, for example, counterclockwise, and the water ejection direction from the lower water supply route and the air ejection pipe (27 a) is rotated clockwise. And erupt likeWhen discharging the sharpening water after the washing, the stirring blade (17) is rotated clockwise, for example, so that the water jet direction from the lower water supply route and the air jet direction from the air jet pipe (27a) are the same clockwise. .
[0005]
[0006]
[0007]
【The invention's effect】
  The invention of claim 1A rice washing machine having rice storage means, rice weighing means, rice washing means, rice cooking means, and control means, and configured to be supplied to the rice washing tank (3) from above and below via an upper water supply route and a lower water supply route. The rice washing tank (3) is configured such that air can be ejected from an air ejection pipe (27a) provided in the lower water supply route, and the rice washing tank (3) passes through the overflow pipe (41) and the drain valve (44). Configured to allow upper and lower drainage,
In the rice washing tank (3), a stirring blade (17) that rotates about the vertical axis is provided, and the stirring blade (17) is configured to be rotatable forward and backward by a rice washing motor (20).
At the time of rice washing, the rotation direction of the stirring blade (17), the direction of water ejection from the lower water supply route and the direction of air ejection from the air ejection pipe (27a) are opposite to each other. 3) When discharging from the upper part, the stirring blades (17) are rotated in the same direction as the rotation direction of the stirring blades (17), the water ejection direction from the lower water supply route, and the air ejection direction from the air ejection pipe (27a). (17) is configured to be rotationally driven so that when washing riceSince water and air in a direction opposite to the rotation direction of the stirring blade (17) are ejected from the lower water supply route and the air ejection pipe (27a), a strong shearing action is generated by the swirling flow of water and air. Amplifies the polishing of rice by air.
[0008]
  Also,The direction of rotation of the stirring blade (17) when discharging the sharpening water after completion of the washing operation and the soot floating on the surface of the sharpening waterReverseSince the jet direction of the water from the lower water supply route and the air from the air jet pipe (27a) is made the same, the sharpened water in the rice washing tank (3) and the suspended matter such as rice cake are pushed up above the rice washing tank (3). The water is quickly drained from the upper water distribution port (41a), and the turbidity of the sharpening water can be reduced quickly.KiThe
[0009]
DETAILED DESCRIPTION OF THE INVENTION
  Embodiments of the present invention shown in the drawings will be described below. FIG. 1 is a front view of a rice cooking apparatus used in a canteen or the like for supplying a large amount of cooked rice, FIG. 2 is a side view thereof, FIG. 3 is a side sectional view thereof, and FIG.
[0010]
  A rice storage tank 2 is provided above the support member 1, a rice washing tank 3 is provided below the rice storage tank 2, and a rice cooker main body 5 is disposed below the rice washing tank 3 at intervals. The rice cooker main body 5 includes a rice cooker 6, a pot heating burner 7, a pull-out base 10, and the like.
[0011]
  The lower half of the rice storage tank 2 is formed in a hopper shape, and a measuring instrument 12 (FIG. 3) is attached to the lower end of the hopper. The measuring device 12 is made of a cylindrical member, and is driven by a motor 12a through a transmission device (not shown) to rotate the measuring device 12 filled with rice that has flowed from the storage tank 2 into the cylindrical member by a predetermined amount. As a result, a predetermined amount of rice is supplied from the rice storage tank 2 to the rice washing tank 3.
[0012]
  As shown in FIG. 3, the rice washing tank 3 includes a funnel-shaped receiving portion 13 for receiving rice supplied from the measuring device 12 in the ceiling portion, a cylindrical body portion in the middle portion, and a hopper-like portion in the lower portion. The jacket part 31 is connected to the lower part of the hopper-like part of the rice washing tank 3 and the filter 15 having an opening to the extent that rice grains do not leak is provided at the boundary between the hopper-like part and the jacket part 31. Yes. A vertical rotation shaft 16 is provided at the center of the rice washing tank 3, a stirring blade 17 is attached to the rotation shaft 16, and the rotation shaft 16 is connected to the support member 1 through a worm gear 21 by a rice washing motor 20 that can rotate forward and backward. Is rotated. The rotary shaft 16 is a hollow shaft, the inner shaft 16a is loosely fitted in the outer hollow shaft 16 so as to be slidable up and down, and a detachable rice removal valve 22 is provided at the lower end of the shaft. Is moved up and down by a cam 24 driven by a rice drain valve driving motor 23, and the opening and closing control of the rice drain valve 22 is performed. When the rice draining valve 22 is opened, the rice in the rice washing tank 3 falls into the lower rice cooker body 5.
[0013]
  Water is supplied to the rice washing tank 3 through the water distribution pipe 26 (FIG. 3), the flow sensor 25, the upper water supply valve 33, the route passing through the upper water supply port 29 on the ceiling of the rice washing tank 3, and downstream of the flow sensor 25. This is carried out in two systems: a route branched from the water pipe 26 and routed from the lower water supply valve 35, the water distribution pipe 27, and the lower water supply port 30 through the jacket portion 31. A drainage box 39 is provided on the lower side of the rice washing tank 3, and the drainage box 39 having the drainage port 40 has a lower end portion of an overflow pipe 41 whose upper end opens on the upper side surface of the rice washing tank 3, and one end portion of the drainage box 39. The other end portion of the jacket water pipe 42 communicating with the jacket portion 31 is connected. Drainage from the jacket water distribution pipe 42 is performed by opening and closing a drain valve 44 (shown integrally with the water level valve 54 in FIG. 3 for convenience), and the water level valve 54 adjusts the water level in the rice washing tank 3.
[0014]
  Although the drainage box 39 is always closed by the drainage valve 44 and the water level valve 54, when draining the water in the rice washing tank 3, the jacket water distribution pipe 42, the drainage valve 44, and the Drained through the water level valve 54, the drain box 39 and the drain port 40.
[0015]
  The drain valve 44 and the water level valve 54 are opened and closed by control wires 45 and 55 provided to extend from the drain valve solenoid 43 and the water level valve solenoid 53 which are fixedly provided on the ceiling of the rice washing tank 3. Moreover, the float sensor 32 with an electrical contact which detects the amount of water in the rice washing tank 3 is provided in the upper part in the rice washing tank 3.
[0016]
  Next, the operation of the rice cooker of the above embodiment 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 rice washing time (rotation time of the stirring blade 17), the rice polishing time (rotation time of the stirring blade 17), The operation display device 11 sets conditions necessary for rice cooker operation such as the soaking time of the rice washing tank, the number of times of washing, the overflow time of the rice washing tank, the draining time of the rice washing tank and the steaming time.
[0017]
  When the start switch is pressed in step 0 shown in FIG. 4 after the completion of the rice cooking condition setting input, the rice in the storage tank 2 is weighed by the meter 12 in step 1 and the set amount of rice is supplied to the rice washing tank 3. Wash the rice in step 2. The rice washing process in Step 2 includes a narrow rice washing process in which rice is stirred in water and sharpened, and a rice polishing process in which rice is stirred in a wet state. In one narrow rice washing process, the upper water supply valve 33 and the lower side While the water supply valve 35 (see FIG. 3) is opened and water is supplied to the rice washing tank 3, the stirring blade 17 is rotated for a specified time, and during that time, the soup is discharged as excess water from the overflow pipe 41 through the drain box 39 and the drain port 40, When the upper water supply valve 33 and the lower water supply valve 35 are closed after the lapse of the specified time, the stirring blade 17 is stopped, and the drain valve 44 and the water level valve 54 are opened, the jacket is removed from the filter 15 below the hopper-like portion at the bottom of the rice washing tank 3. Through the part 31, the jacket water distribution pipe 42, the drain valve 44 and the water level valve 54, the drain box 39, and the drain port 40, the tortoise is drained. The rice grains are prevented from leaking by the filter 15 during the drainage of the tofu soup and will not be washed away from the rice washing tank 3. After draining the rice washing tank 3, the stirring blade 17 is rotated for a specified time to perform the polishing process.
[0018]
  As described above, the rice washing process and the rice polishing process in a narrow sense for supplying water, stirring and draining are performed in the rice washing tank 3 a predetermined number of times, and the rice washing process is terminated. In step 3, 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., and measures and controls the flow sensor 25 to open and close the lower water supply valve 35, and the rice washing tank 3, and after the rice washing tank 3 is full, the water level valve 54 is opened and closed to adjust the water.
[0019]
  In step 4, the washed rice in the rice washing tank 3 and the measured water in step 3 are dropped into the rice cooker 6 by opening and closing the rice discharge valve 22. In step 5, the rice in the rice cooker 6 is immersed in water for a specified time. After the specified time has elapsed, ignition is performed in step 6, rice is cooked in step 7, steamed in step 8, cooked in step 9, and predetermined cooked rice is completed (step 10).
[0020]
  FIG. 5 shows a state in which the lid 75 of the operation panel (operation display device) 11 is closed (FIG. 5A) and an open state (FIG. 5B). A process display screen 71, a reservation switch 78, a switch group 79, a start switch 80, and a help switch 81 are arranged above the operation panel 11, and a liquid crystal display screen 72 is provided below. The process display screen 71 displays the preliminary process consisting of measuring, washing and soaking rice, and the cooking process consisting of preparing, soaking, igniting, rice cooking, unevenness, and cooking after cooking. The LED 77 provided in the vicinity of the process display unit can be lit to identify whether the operation is in progress, and light in two colors, green in the normal driver's seat state and red in the abnormal state, to facilitate the driving state It is made to recognize.
[0021]
  When the lid 75 shown in FIG. 5A is closed, the liquid crystal display screen 72 displays the normal operation display screen A, and in this embodiment, the number of times of accumulated rice cooking (hereinafter referred to as the number of accumulated kettles) continues. The number of times the rice is cooked (hereinafter referred to as the number of pots to be cooked), the capacity to be processed with one rice cooking, the total soaking time in the rice cooking preliminary process and the rice cooking process, and the steaming time are displayed.
[0022]
  FIG. 5B shows a state in which the lid 75 is opened. The lid 75 is provided with a lid opening / closing detection device 76 including a reflection plate 76b that reflects the light of the photocoupler 76a and a locking portion 83, and an operation display is provided. A lid open / close detection device 76 including a photocoupler 76 a and a locking portion 83 ′ is provided on the device 11 at a position corresponding to the reflection plate 76 b and the locking portion 83.
[0023]
  When the lid 75 is opened, the lid open / close detection device 76 is turned off, and the liquid crystal display screen 72 displays a screen on which the rice cooking conditions can be set immediately from the normal operation display screen A. This screen is hereinafter 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 rice cooking amount, water adjustment, washing method, soaking time, steaming time, cooking method (mode), ignition method, rice cooking condition setting screen The type of rice cooking conditions is selected with the menu switch 74 below B, and the rice cooking conditions can be determined with the setting switch 73 at a position corresponding to each selected rice cooking condition.
[0024]
  In addition, as shown in FIG. 6, the normal operation display screen A is currently in a state where the rice-washing rice cooker is in that state. Characters such as “stopped”, “running”, “abnormal”, “water” are displayed. Furthermore, in order to call the operator's attention, the displayed character is blinked in reverse (FIG. 6).(1)~(5)reference).
[0025]
  FIG. 7 shows a normal operation screen A during normal operation on the operation panel 11 of this embodiment. First,(1)When the power switch is turned on,(2)The normal operation display screen A, which is a standard screen, is displayed, and the total number of cooked rice, the display during operation stop, and the amount of rice cooked at one time, which are preset rice cooking conditions, are 5 tons, and cooked for each cooker. The soaking time and steaming time are displayed. At this time, when the help switch 81 is turned ON, the current time, the method of starting operation, and that the reserved operation can be performed are displayed. Then(3)When it is desired to change the rice cooking conditions displayed on the screen A, the lid 75 is opened, the rice cooking condition setting screen B is displayed, and the setting conditions can be changed.
[0026]
  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,(4)When the scheduled number of hooks is set from “3 hooks” to “10 hooks” using the switch group 79, the display of the planned number of hooks is changed to “10”.
[0027]
  next,(5)When the start switch 80 is pressed, the operation is started and “in operation” is displayed. 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,(6)When the help switch 81 is pressed, the remaining time is displayed.
[0028]
  During automatic operation, for example,(7)If the hook is not ready, the “running” display flashes, so that when the help switch 81 is turned on, an instruction to set the inner hook is displayed. After setting the inner pot,(8)When ignition is in the manual mode, an ignition call sound is heard, and at the same time, the “driving” display blinks to prompt ignition. When the ignition switch is turned on and the operation is resumed for a predetermined time,(9)Since the cooking completion voice is emitted and the “Driving” display flashes at the same time, when the help switch 81 is turned on, an instruction to complete the cooking is displayed.
[0029]
  Next, the support structure of the rice storage part and the rice washing part is demonstrated based on FIG.1, FIG.2, FIG.8. The support member 1 includes a rectangular frame 1a, a gate-shaped upper frame 1b having a predetermined width and a predetermined height, and a plurality of horizontal rails 1c supported between the upper frames 1b. The lateral movement frame 85 that supports the rice storage part and the rice washing part is an L-shaped side view, with an upper planar horizontal frame part 85a and a vertical frame part 85b connected to the rear end of the horizontal frame part 85a. It is configured. On the right and left sides of the rear end portion of the horizontal frame portion 85a, there are provided upper rollers 86 that rotate about the horizontal axis in the front-rear direction and rear rollers 87 that rotate about the vertical axis. As shown in FIG. 8, the roller shaft 87a is loosely fitted into the hole 88a of the support plate 88, and is configured to be self-aligning so that the shaft core can be inclined, for example, about 6 °. On both sides, there are provided lower rollers 89 that rotate around the vertical axis in the same manner as the rear rollers 87,.
[0030]
  Then, the upper rollers 86,... Of the lateral movement frame 85 are placed on and contacted with the upper surface of the upper horizontal rail 1c of the upper frame 1b, and the rear rollers 87,. When the 89 is brought into contact with the front surface of the intermediate horizontal rail 1c, the horizontal movement frame 85 which supports the rice storage tank 2 and supports the rice washing tank 3 in a suspended manner is arranged in the horizontal direction. It is configured to be supported movably.
[0031]
  As shown in FIG. 9, the conventional support structure of the rice storage tank 2 and the rice washing tank 3 is configured such that the laterally moving frame 85c is a flat frame, An upper roller 86 rotating around the horizontal axis in the direction and a rear roller 87 rotating around the vertical axis, and the upper roller 86,. The rear rollers 87, ... are brought into contact with the rear surface of the upper horizontal rail 1c to support the lateral movement frame 85 so as to be laterally movable. Further, the rice storage tank 2 is placed and supported on the lateral movement frame 85c, and the rice washing tank 3 is supported in a suspended manner on the lateral movement frame 85c, and the lower rollers 89 provided on the lower rear side of the rice washing tank 3. Was brought into contact with the front surface of the horizontal rail 1c in the middle part.
[0032]
  In this conventional configuration, when the rice washing tank 3 is removed from the lateral movement frame 85c, the lower roller 89 is no longer supported by the rice washing tank 3, and the front side portion of the rice storage tank 2 placed on the lateral movement frame 85 hangs down. There was a problem in that the support portions of the upper roller 86 and the rear roller 87 were distorted, and the rollers 86 and 87 did not properly contact the cross rail 1c.
[0033]
  However, in this embodiment, the lateral movement frame 85 is configured in an L shape in a side view by the lateral frame portion 85a and the longitudinal frame portion 85b connected to the rear end portion of the lateral frame portion 85a, and the upper rollers 86,. , And the lower roller 89 are supported by the support member 1, so that the rice storage tank 2 does not hang down even if the rice washing tank 3 is removed. ,..., And the rear roller 87... And the lower roller 89 are automatically fitted with the roller shaft 87 a of the rear rollers 87 and 89 loosely fitted into the holes 88 a of the support member 88. Because of the alignment type, even if there is a manufacturing error or assembly error, the axis of the rear rollers 87,... It is possible to prevent the damage.
[0034]
  Next, the rice washing apparatus will be described with reference to FIGS. 3, 10 (a), and 10 (b). The water supply to the rice washing tank 3 is performed by supplying the water distribution pipe 26, the flow sensor 25, the upper water supply valve 33, the upper water supply route via the upper water supply port 29 on the ceiling of the rice washing tank 3, and the water distribution pipe downstream of the flow sensor 25. 26, the lower water supply route 35 branches from the lower water supply valve 35, the water distribution pipe 27, and the lower water supply route 30 through the jacket portion 31, and is arranged in parallel with the water supply pipe 27 of the lower water supply route. An air jet pipe 27a for jetting air is arranged so that air is jetted into the jacket portion 31 in parallel with the water of the lower water supply route. The water distribution pipe 27 and the air jet pipe 27a are respectively shown in FIG. ), A swirling flow in which air and water are mixed is easily generated.
[0035]
  At the time of the rice washing operation in the rice washing tank 3, the rotation direction of the large and small stirring blades 17 and 17 provided on the rotary shaft 16 in the rice washing tank 3, the water ejection direction from the lower water supply route, and the air ejection pipe 27a. These air jet directions are configured to be opposite to each other.
[0036]
  At the time of washing the rice, as shown in FIG. 10 (b), the stirring blades 17 and 17 are rotated counterclockwise, and the water jet direction of the water from the lower water supply route and the air jet pipe 27a is rotated clockwise. To erupt. Then, the rice in the rice washing tank 3 is subjected to a strong shearing action by the swirling by the stirring blades 17 and 17 and the swirling flow of water and air, and a high rice washing effect can be obtained.
[0037]
  When the rice washing operation is finished and the sharpening water is discharged from the upper part of the rice washing tank 3, by making the rotation direction of the stirring blades 17 and 17 the same as the direction of the water in the lower water supply route and the air ejection direction of the air ejection pipe 27a, The drainage time of sharpening water can be shortened. By making the jet direction of the water of the lower water supply route and the air of the air jet pipe 27a the same, the polishing water in the rice washing tank 3 is pushed upward in the washing rice tank 3 by centrifugal force and floats on the surface of the polishing water. This is because the equal and sharpening water is quickly drained from the upper water distribution port 41 a of the overflow pipe 41.
[0038]
  In the conventional apparatus, water was supplied from the upper water supply route while washing the rice, and the water flow was generated by the rotation of the stirring blade 17 to wash the rice. However, the water flow is weak because only the stirring blade 17 generates the water flow. There was a problem that rice washing efficiency was low. In addition, there is a problem that rice cakes floating in the sharpening water accumulate in the center of the rice washing tank 3 and are not easily discharged.
[0039]
  However, in this embodiment, water and air are ejected in the opposite direction to the stirring blades 17 and 17 by the lower water supply route, so that polishing of rice by water can be amplified, and the polishing water in the rice washing tank can be used. It can be pushed up and quickly drained from the upper water distribution port 41a, the turbidity of the sharpening water can be quickly reduced, and the sharpening water after washing can be drained quickly.
[0040]
  Next, an embodiment of the drive configuration of the rice drain valve 22 will be described with reference to FIGS. The drive configuration of the rice drain valve 22 is such that when the rice drain valve 22 is removed from the rice scraper shaft 16a and cleaned and then mounted again, the rice drain shaft 16a is fixed so that it does not slide up and down to facilitate mounting. Is.
[0041]
  A rice draining shaft 16a is loosely fitted in the hollow rotary shaft 16 so as to be slidable up and down, and a rice draining valve 22 is attached to the lower end of the rice draining shaft 16a. An intermediate portion of a dropping arm 90 that moves up and down like a seesaw is pivotally supported on the frame, and one end of the dropping arm 90 is pin-connected to the upper end of the rice removal shaft 16a, and a roller 90b provided at the other end of the dropping arm 90 A dropping cam 24 driven by a rice removal valve drive motor 23 is linked so as to be movable, and the rice washing tank 3 is opened and closed by moving the rice removal valve 22 up and down. A stopper 90a is provided to stop the downward rotation of the one end side of the dropping arm 90 at a predetermined position.
[0042]
  A butterfly plate 92 biased by a spring 91 is attached to a portion of the dropping arm 90 where the dropping cam 24 abuts. Thus, when the dropping cam 24 rotates counterclockwise to the open side and its large diameter portion contacts the butterfly plate 92, the butterfly plate 92 retreats against the spring 91 and the large diameter of the dropping cam 24 is reached. When the part is separated, the butterfly plate 92 returns to the protruding direction by the spring 91, and the tip of the butterfly plate 92 is in contact with the small-diameter portion of the dropping cam 24 in the stopped state.
[0043]
  In the state shown in FIG. 11, the large-diameter portion of the dropping cam 24 abuts on the roller 90 b of the dropping arm 90, lifts the left boom of the dropping arm 90, and moves the rice removal shaft 16 a and the rice removal valve 22 through the dropping arm 90. The rice removal valve 22 is lifted and closed. Next, when the dropping cam 24 further rotates counterclockwise, it rotates while pressing the left side portion of the dropping arm 90 and contacts the butterfly plate 92. When the butterfly plate 92 rotates against the spring 91, it rotates. When the large-diameter portion moves away from the roller 90b, the left side of the dropping arm 90 is moved down by its own weight such as the rice removal valve 22, and the rice removal shaft 16a is also moved down to open the rice removal valve 22.
[0044]
  Then, as shown in FIG. 12, when the dropping cam 24 opens the rice discharge valve 22 and stops at a predetermined position, the tip of the butterfly plate 92 that has been returned to the protruding direction by the spring 91 is located on the dropping cam 24. Abutting on the small-diameter portion, the upward movement of the right side of the dropping arm 90 is restricted, and the left side of the dropping arm 90 is restricted to move downward by the stopper 91, so the movement of the rice removal shaft 16a is restricted. Thus, the rice drain valve 22 can be easily attached to and detached from the rice drain shaft 16a.
[0045]
  In place of the butterfly plate 92 and the spring 91, a locking body 92 urged toward the dropping cam 24 by the spring 91 is provided at the end of the dropping arm 90 as shown in FIG. It is good also as a structure which makes a latching body protrude or evacuate by rotation of the cam 24. FIG.
[0046]
  Next, the inspection window for the rice washing tank 3 will be described with reference to FIGS. 15 and 16. The lateral movement frame 85 of the support member 1 places the rice storage tank 2 and instructs the rice washing tank 3 to be suspended. The rice washing tank 3 is provided with a relatively large window 3a for inspection and cleaning, and an opening / closing lid 94 is mounted. On the front side of the rice storage tank 2, a door 95 having a control device is provided so as to be openable and closable. An opening 93 a is formed in a space on the lower front side of the rice storage tank 2 in the fixing horizontal plate 93 of the lateral movement frame 85. It is provided with an opening / closing lid 94a.
[0047]
  If the door 95 is opened and the opening / closing lid 94a is opened, the inside of the rice washing tank 3 below can be inspected from the opening 93a of the fixing horizontal plate 93. Therefore, even when the rice-washing rice cooker stops due to an abnormality and it becomes impossible to check by opening the opening / closing lid 94 of the rice-washing tank 3, the state in the rice-washing tank 3 can be easily confirmed and the inspection work can be performed smoothly. it can.
[0048]
  Next, an embodiment of immersion control of the rice washing tank 3 in the rice washing rice cooker will be described with reference to FIGS. 17 (a) and 17 (b). The rice washing tank 3 is configured so that water can be supplied from the upper part through the upper water supply route and also from the lower part through the lower water supply route, and an air ejection pipe 27a that ejects air in parallel with the water distribution pipe 27 of the lower water supply route is disposed. The air is jetted together with the water in the lower water supply route. (Figure 3). Then, after washing the rice, the polishing water is drained, and in the rice washing tank 3, for the predetermined time to hold the water off, the operation panel 11 has a rice variety, a rice cooking time waiting time, The setting means which can set an immersion time interval and immersion time arbitrarily according to either rice cooking time, the amount of rice cooking once, or the combination of these conditions is provided.
[0049]
  Moreover, it is set as the structure which can be water-supplied from the lower part of the rice washing tank 3 by the lower water supply route during the above-mentioned soaking. When the menu switch 74 is turned on for 5 seconds, for example, and an extended function is selected, an extended function input screen is displayed on the liquid crystal display screen 72. Next, when immersion adjustment is selected by the menu switch 74 based on the extended function input screen, an immersion time set screen for adjusting the immersion interval and the immersion time is displayed as shown in FIG.
[0050]
  Then, the immersion switch or immersion time is selected by operating the plus switch 96a or minus switch 96b of the setting switch 73 provided below the liquid crystal display screen 72, and then the set switch 97 is turned on to set the setting time. Confirm. When the setting is completed, the screen returns to the extended function display screen, and when the standard screen button is pressed, the screen returns to the standard screen.
[0051]
  As in the conventional apparatus, the immersion conditions are set uniformly, for example, with an immersion time interval of 8 minutes and an immersion time of 5 seconds, and water is immersed from above the washing tank 3 of the upper water supply route. There may be a problem that shortage occurs, the rice cooking operation condition cannot be met, or the remaining rice is generated in the washing rice tank 3 when the rice is dropped and supplied to the rice cooking pot due to the amount of immersion water.
[0052]
  However, as described above, when the soaking time is set to be longer than that of the standard rice, or when the soaking time is set to be longer, the soaking interval is set to be longer or the rice washing tank 3 If the rice cooking time of the rice cooker body 5 immediately below is set to “cook immediately” and it takes a long time to cook, it can be adjusted according to various conditions such as setting the immersion time longer, so that such problems can be solved. it can.
[0053]
  In addition, since water is supplied from the lower part of the rice washing tank 3 and immersed, even if the lower part of the rice washing tank 3 is heated by the steam rising from the lower rice cooker, the rice being immersed does not dry, It is possible to eliminate problems such as cracking. Next, another embodiment of the operation control will be described based on FIG.
[0054]
  Rice water detection means for detecting the amount of water used in the rice-washing rice cooker, such as rice washing, washing, dipping, water addition, etc., rice cooking time detection means for detecting the time required from the start of rice cooking to the end of rice cooking, rice cooking for calculating the number of rice cooking pots The rice-washing rice cooker having a pot number detecting means is provided with a cumulative number display means for displaying each cumulative value of each detecting means, and a reset means for setting the cumulative value to an initial value.
[0055]
  When the menu switch 74 is turned on for 5 seconds, for example, and an extended function is selected, a mode setting screen including an operation history is displayed on the liquid crystal display screen 72. Next, when the operation history is selected by the menu switch 74, as shown in FIG. 18, the cumulative value of the number of cooked rice (total number of kettles), the total amount of water used (total water supply amount), and the cumulative value of the cooking time (total time) ) Is displayed on the liquid crystal display screen 72.
[0056]
  In this way, it is possible to know the total number of pots, total water supply, and total rice cooking time, so it is possible to grasp the service life of the components, schedule service circulation time, and use parts when an abnormality is displayed. It is easy to determine whether it is based or not, and it is easy to maintain.
[0057]
  When the help switch 98 and the set switch 97 are simultaneously turned ON, the numerical value can be cleared to 0, so that the operating state can be grasped every period such as one day, one week, or one month. Management of the operation rate of the rice cooker becomes easy.
[Brief description of the drawings]
FIG. 1 is a front view of a rice-washing rice cooker showing an embodiment of the present invention.
FIG. 2 is a side view of a rice washing rice cooker.
FIG. 3 is a side cross-sectional view of a rice-washing rice cooker.
FIG. 4 is a diagram showing an overall control flow of the rice-washing rice cooker.
FIGS. 5A and 5B are diagrams showing a state where a lid of an operation panel of the rice-washing rice cooker is closed and an open state.
6 is a diagram showing an operation state of a normal operation display screen of the operation panel of FIG.
7 is a diagram showing a normal operation screen during normal operation of the operation panel of FIG. 5. FIG.
FIG. 8 is a side sectional view of a main part.
FIG. 9 is a side view of a conventional device.
FIG. 10A is a side view showing an operating state. (B) The top view which shows an action state.
FIG. 11 is a front view showing an operation state.
FIG. 12 is a front view showing an operation state.
FIG. 13 is a detailed view of a main part.
FIG. 14 is a detailed view of a main part.
FIG. 15 is a plan view of a main part.
FIG. 16 is a front view of the main part.
FIG. 17 is a diagram showing a state in which a lid of an operation panel is opened, and display contents of a liquid crystal screen.
FIG. 18 is a display content of a liquid crystal screen.
[Explanation of symbols]
1 Support member
2 Rice storage tank (means for storing rice)
3 Rice-washing tank (rice-washing means)
5 Rice cooker body
6 Rice cooker (rice cooking means)
7 Kettle heating burner
12 Measuring instrument (measuring means for rice)
16 Rotating shaft
17 Stirring blade
19 Stirring spiral
25 Flow sensor
26 Water distribution pipe
27 Water distribution pipe
27a Air outlet pipe

Claims (1)

A rice washing machine having rice storage means, rice weighing means, rice washing means, rice cooking means, and control means, and configured to be supplied to the rice washing tank (3) from above and below via an upper water supply route and a lower water supply route. The rice washing tank (3) is configured such that air can be ejected from an air ejection pipe (27a) provided in the lower water supply route, and the rice washing tank (3) passes through the overflow pipe (41) and the drain valve (44). Configured to allow upper and lower drainage,
In the rice washing tank (3), a stirring blade (17) that rotates about the vertical axis is provided, and the stirring blade (17) is configured to be rotatable forward and backward by a rice washing motor (20).
And rotational direction of the stirring blade (17) at the time of rice washing, and opposite to each other and jetting direction of air from the water jet direction and air ejection pipe from the lower water supply route (27a), rice washing tank sharpening water after washing rice completion When discharging from the upper part of (3), the stirring direction is such that the rotation direction of the stirring blade (17) is the same as the direction of water ejection from the lower water supply route and the direction of air ejection from the air ejection pipe (27a). A rice-washing rice cooker characterized in that the blade (17) is rotationally driven .

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