JP2015006226A - Rice washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice washing device freed from any water leakage, even with a secular change, from between an outlet part in the lower part of a rice washing cylinder and a conical valve.SOLUTION: A vertically directed pouring shaft 16a is attached to the upper end of a pouring valve 22 for opening and closing the opening in the lower end part of a rice washer 3, and opening/closing means composed of a rising-lowering arm 90 for moving the pouring shaft 16a vertically to open and close the pouring valve 22 is attached. The pouring shaft 16a is equipped at its upper portion with pouring shaft position adjusting means A for positioning the pouring valve 22 by moving the pouring shaft 16a vertically. In the case, therefore, where the closed position of the opening of the rice washer 3 is offset due to the aging change by the pouring valve 22 thereby to form a clearance between the opening of the rice washer 3 and the pouring valve 22, the clearance can be eliminated by the adjustment of the pouring shaft position adjusting means A thereby to prevent the water leakage.

Description

  The present invention relates to a rice washing apparatus equipped with a commercial rice cooker.

  Patent Document 1 below discloses a commercial rice washing apparatus, in which the bottom of the rice washing cylinder has a funnel shape, and a conical valve is provided at the outlet.

Japanese Patent No. 3287024

In the invention described in Patent Document 1, when the rice washing apparatus has been used for many years, a gap may be formed between the outlet portion below the rice washing cylinder and the conical valve, causing water leakage.
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a rice washing apparatus that prevents water leakage from occurring between an outlet portion below a rice washing cylinder and a conical valve even when it changes over time.

The above-mentioned problem of the present invention is solved by the following means.
The invention according to claim 1 includes a rice washer (3) having an opening at its lower end, a dropping valve (22) for opening and closing the opening of the rice washer (3), and the dropping valve (22). An opening / closing operation means for opening and closing the dropping valve (22) by moving the dropping shaft (16a) in the vertical direction is provided on the dropping valve (22). (90 etc.) is attached, and a drop shaft position adjusting means (A) for positioning the drop valve (22) by moving the drop shaft (16a) in the vertical direction is provided on the top of the drop shaft (16a). This is a characteristic rice washing apparatus.

  According to the second aspect of the present invention, the opening / closing operation means (90, etc.) includes an elevating arm (90) that rotates in the vertical direction around the rotation fulcrum of the horizontal axis, The drop shaft (16a) is connected, and the drop shaft position adjustment means (A) is capable of moving the drop shaft (16a) in the vertical direction with the tip of the lifting arm (90) stopped at the top. The rice washing apparatus according to claim 1.

  According to the third aspect of the present invention, a thread portion is formed at the upper end portion of the dropping shaft (16a), and a member (99) for screwing the thread portion of the dropping shaft (16a) is used as the dropping shaft position adjusting means (A). The rice washing apparatus according to claim 2, which is provided.

  According to a fourth aspect of the present invention, the position adjusting means (A) includes a roller (97) attached to the dropping shaft (16a) and a roller pressing plate (96) attached to the lifting arm (90). 4. The rice washing apparatus according to claim 3, wherein the roller (97) and the dropping shaft position adjusting means (A) can be adjusted by removing the plate (96) from the lifting arm (90).

  According to the first aspect of the present invention, the closed position of the opening of the rice washer 3 by the drop valve 22 is shifted due to secular change, and a gap is generated between the drop shaft 16 a and the opening of the rice washer 3 and the drop valve 22. In this case, the adjustment by the dropping shaft position adjusting means A can eliminate the gap and prevent water leakage.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the dropping shaft 16a is adjusted by adjusting the dropping shaft position adjusting means A with the tip of the lifting arm 90 stopped at the uppermost position. Is moved in the vertical direction, it becomes easy to adjust the dropping shaft position adjusting means A of the dropping valve 22 by the dropping shaft 16a.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 2, the dropping shaft is simply operated by turning the member 99 of the dropping shaft position adjusting means A screwed into the threaded portion of the dropping shaft 16a. The position of the drop valve 22 can be adjusted by 16a.

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the contact position between the roller 97 and the dropping shaft position adjusting means A is adjusted by removing the roller pressing plate 96 from the lifting arm 90. As a result, the position of the drop valve 22 can be adjusted by the drop shaft 16a, the erroneous operation of the drop shaft position adjusting means A can be prevented, and the drop shaft 16a can be moved up and down smoothly by the action of the roller 97.

It is a front view of the rice-washing rice cooker which shows embodiment of this invention. It is a side view of the rice washing rice cooker of FIG. It is an expanded sectional side view of the rice-washing rice cooker of FIG. It is a principal part longitudinal cross-sectional view of the rice washer of FIG. It is a top view which shows the water supply structure to the rice washer of FIG. It is a perspective view which shows the water supply structure to the rice washer of FIG. It is a side view which shows the water supply pipe and air supply pipe | tube to the rice washer of FIG. It is a perspective view which shows a drainage structure from the rice washer of FIG. It is a perspective view which shows the inspection window cover and cover of the rice washing machine of FIG. It is the side view (a) which shows the rice-washing action state of the rice washing machine of FIG. 1, and the top view (b) which shows an action state. It is an automatic control flowchart figure of the rice washing rice cooker of FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
The rice-washing rice cooker shown in the present embodiment is used in a dining room or the like that supplies a large amount of cooked rice, and its entire front view is shown in FIG.

  A rice storage tank 2 is provided on the upper part of the support machine frame 1, and a rice washer 3 is connected to the lower side of the rice storage tank 2, and a rice cooker 5 is arranged below the rice washer 3 at intervals. The rice cooker 5 includes a rice cooker 6, a kettle heating burner 7, a drawer-type gantry 10, and the like.

  As shown in FIG. 3, a rice input port 18 is opened on the upper surface of the rice storage tank 2, and the rice input port 18 is opened and closed by the input lid 19, and the opening and closing of the input lid 19 is detected by the input lid sensor 14. The lower half of the rice storage tank 2 is formed in a hopper shape, and a measuring instrument 12 is attached to the lower end of the hopper. The meter 12 is made of a cylindrical member, and is driven by a metering motor 12a through a transmission device (not shown). The meter 12 filled with rice that has flowed from the rice storage tank 2 by a certain amount is rotated as necessary for the planned amount of rice cooking. By rotating the number of rice, the planned amount of rice is supplied from the rice storage tank 2 to the rice washer 3.

  In addition, when the opening lid 19 is removed at normal times and the rice opening 18 is opened, the opening lid sensor 14 detects the opening and controls so as not to drive the measuring instrument 12 for safety. However, in the maintenance mode, the meter 12 can be driven even when the closing lid sensor 14 is opened.

  As shown in FIG. 3, the rice washer 3 is provided with a funnel-shaped receiving part 13 for receiving rice supplied from the measuring instrument 12 in the ceiling part, a cylindrical body part 3b in the middle part, and a hopper shape in the lower part. A filter 15 having an opening to the extent that rice grains do not leak at the boundary between the hopper-like portion 3c and the jacket portion 31. Yes.

  A vertical rotating shaft 16 is provided at the center of the rice washer 3, and a stirring blade 17 is attached to the rotating shaft 16. It is rotated by a motor 20 via a worm gear 21. The rotary shaft 16 is a hollow shaft, the inner drop shaft 16a is loosely fitted in the outer rotary shaft 16 so as to slide up and down, and a detachable drop valve 22 is provided at the lower end of the shaft. Is moved up and down by a cam 24 driven by a drop valve drive motor 23, and the opening and closing control of the drop valve 22 is performed. When the dropping valve 22 is opened, the rice in the rice washer 3 falls into the lower rice cooker 5.

  When the dropping valve 22 is opened, the rice washing motor 20 is rotated faster than the rotation at the time of washing the rice so that the rice does not remain in the rice washing machine 3. As shown in FIG. 3, the supply of water to the rice washer 3 is a route through the water distribution pipe 26, the flow sensor 25, the upper water supply valve 33, and the upper water supply port 29 on the ceiling of the rice washer 3, It is carried out in two systems of a route that branches downstream from the water distribution pipe 26 and passes through the jacket portion 31 from the lower water supply valve 35, the water distribution pipe 27, and the lower water supply port 30. A drainage box 39 is provided on the lower side of the rice washer 3, and the drainage box 39 having a drainage port 40 is connected to an overflow pipe 41 that opens on the upper side surface of the ricewasher 3 by a connecting pipe 36. The portion is connected to a jacket water distribution pipe 42 communicating with the jacket portion 31. Drainage from the jacket 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 in the rice washer 3 is adjusted by the water level valve 54.

  The drain box 39 is always closed by the drain valve 44 and the water level valve 54. However, when draining the water in the rice washer 3, the jacket water pipe 42, drain valve 44 and Drained through the water level valve 54, the drain box 39 and the drain port 40.

  The drain valve 44 and the water level valve 54 are opened and closed by control wires 45 and 55 provided extending from the drain valve solenoid 43 and the water level valve solenoid 53 provided fixed to the ceiling of the rice washer 3. Moreover, the float sensor 32 with an electrical contact which detects the amount of water in the rice washer 3 is provided in the upper part in the rice washer 3.

  The lateral movement frame 85 of the support machine frame 1 mounts the rice storage tank 2 and supports the rice washer 3 in a suspended manner. A relatively large inspection / cleaning window (not shown) for inspection / cleaning is provided on the front surface of the rice washer 3, and an inspection window lid 94 is attached to the inspection / cleaning window. On the front side of the rice storage tank 2, a control door 11 having a control device is provided so as to be freely opened and closed.

  Next, the support structure of the rice storage tank 2 and the rice washer 3 will be described with reference to FIGS. 1 and 2. The support machine frame 1 includes a rectangular base 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 left and right upper frames 1b. Has been. The lateral movement frame 85 that supports the rice storage tank 2 and the rice washer 3 includes an upper planar horizontal frame portion 85a and a vertical frame portion 85b that is connected to the rear end portion of the horizontal frame portion 85a. It is configured in an L shape. On the left and right sides of the rear end portion of the horizontal frame portion 85a, there are provided upper rollers 86,... Rotating around the horizontal axis in the front-rear direction, and rear rollers 87,. The roller shaft 87a of 87,... Is, for example, configured to be an automatic alignment type in which the axis can be tilted by about 6 °, and the same as the rear roller 87,. A lower roller 89 that rotates about the vertical axis is provided.

  Thus, 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 lower roller 89 is brought into contact with the front surface of the intermediate horizontal rail 1c, the horizontal movement frame 85 that supports the rice storage tank 2 and supports the rice washer 3 in a suspended manner moves in the horizontal direction. It becomes the structure supported freely.

  Next, the rice washing apparatus will be described with reference to FIG. 3, FIG. 10 (a) and FIG. 10 (b). The supply of water to the rice washer 3 includes a water distribution pipe 26, a flow rate sensor 25, an upper water supply valve 33, an upper water supply route passing through the upper water supply port 29 of the ceiling of the rice washer 3, and a water distribution pipe downstream of the flow rate 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 supply pipe 63 (see FIG. 7) is ejected from the drop valve 22, water in the lower water supply route is sent into the jacket part 31, and air is ejected from the drop valve 22 into the jacket part 31. The water pipe 27 and the air supply pipe 63 are provided at positions eccentric from the center of the jacket portion 31 in FIG. 10B, respectively, so that a swirling flow in which air and water are mixed is easily generated.

  And at the time of the rice washing operation in the rice washing machine 3, the rotation direction of the large and small stirring blades 17 and 17 provided on the rotating shaft 16 in the rice washing machine 3 and the water ejection direction from the lower water supply route are opposite to each other. It is configured as follows.

  At the time of the rice washing operation, the stirring blades 17 and 17 are rotated counterclockwise as shown in FIG. 10 (b), and water from the lower water supply route is ejected so as to rotate clockwise. Then, the rice in the rice washer 3 is subjected to a strong shearing action by the swirling by the stirring blades 17 and 17, the swirling flow of water and the air blown from the dropping valve 22, and a high rice washing effect can be obtained.

  When the rice washing operation is completed and the polishing water is discharged from the upper part of the rice washer 3, the rotation time of the stirring blades 17 and 17 and the water ejection direction of the lower water supply route are made the same, thereby reducing the drainage time of the polishing water. It can be shortened. This is because the sharpening water in the rice washer 3 is pushed upward in the rice washing machine 3 by centrifugal force, so that the slag and the like floating on the surface of the sharpening water and the sharpening water are quickly drained from the upper water distribution port 41a of the overflow pipe 41. .

  As shown in a vertical sectional view of the rice washer 3 in FIG. 4, there is an opening at the lower end of the rice washer 3, and a dropping valve 22 for opening and closing the opening is disposed. The drop valve 22 has a conical shape that gradually decreases in diameter from the large diameter of the bottom portion that opens and closes the opening toward the top portion, and a rod-shaped drop shaft 16 a is connected to the top portion of the drop valve 22. The dropping shaft 16a penetrates the ceiling portion of the rice washer 3 and extends upward, and the distal end portion of the lifting arm 90 is rotatably connected to the distal end portion. In addition, the jacket part 31 with packing 31a is provided in the front-end | tip of the opening part of the lower end part of the rice washing machine 3. As shown in FIG.

  Therefore, when the tip of the lifting arm 90 is moved up and down, the dropping shaft 16a is also moved up and down, and the packing 31a of the jacket 31 of the opening of the rice washer 3 is brought into contact with the conical wall surface of the dropping valve 22, so that the opening Closes.

  A pair of inverted U-shaped roller pressers 96 are provided at the distal end portions of the pair of lifting arms 90 as shown in the round frame of FIG. 4 in a partially enlarged view near the dropping shaft 16a attached to the distal end of the lifting arm 90. . Further, a cylindrical hexagon screw 99 is screwed to the tip of the dropping shaft 16a, and a pair of rollers 97 are disposed on both sides of the hexagonal screw 99 facing each other. The tip of the rotating shaft 97a can press the opposite side surfaces of the cylindrical hexagon screw 99 to fix the hexagon screw 99. The pair of rollers 97 and the hexagonal screw 99 may be referred to as a roller unit.

  Further, one end of the pair of inverted U-shaped roller pressers 96 is rotatably supported by the lift arm 90, and the other end of the roller presser is fixed to the lift arm 90 by the butterfly bolt 101. When tightened, the pair of roller pressers 96 press the opposite side surfaces of the hexagon screw 99, and when the butterfly bolt 101 is loosened, the pair of roller pressers 96 rotate around one end pivotally supported by the lifting arm 90. Therefore, when the state where the roller presser 96 presses the opposite side surfaces of the hexagon screw 99 is released and the rotation shafts 97a of the pair of rollers 97 are further loosened, the tips of the rotation shafts 97a of the rollers 97 become cylindrical. The opposite side surfaces of the hexagonal screw 99 can be released from the pressed state, and the hexagonal screw 99 can be freely rotated with respect to the dropping shaft 16a.

  Thus, by loosening the roller unit and rotating the hexagonal screw 99, the dropping shaft 16a moves up and down, so that the contact position of the opening of the rice washer 3 with the jacket portion 31 can be adjusted. Even if a gap occurs between the packing 31a of the jacket 31 of the opening at the lower end and the conical wall surface of the dropping valve 22 and the water in the rice washer 3 leaks, the dropping shaft 16a is raised upward. There is no water leak.

  As a procedure for preventing water leakage in the rice washer 3, first, the dropping valve 22 is manually lowered to open the roller press 96 by loosening the roller 97 with the butterfly bolt 101 of the roller press 96. After rotating the hexagon screw 99 of the roller unit in the direction to raise the dropping shaft 16a, the rotation shaft 97a of the roller 97 is pressed against the side wall surface of the hexagon screw 99, and then the roller presser 96 is returned to the original position.

In this way, the conical wall surface of the dropping valve 22 is brought into strong contact with the packing 31a of the jacket 31 of the opening of the rice washer 3, whereby the opening of the dropping valve 22 is closed and water leakage is eliminated.
The lifting arm 90, the roller presser 96, the roller 97, the hexagon screw 99, and the butterfly bolt 101 may be collectively referred to as the dropping shaft position adjusting means A.

  As shown in the plan view of FIG. 5, the water supplied to the rice washer 3 is branched into two water supply pipes 60 to form an upper water supply pipe 61 and a lower water supply pipe 62, respectively. Water is supplied to the rice washer 3. At this time, the upper water supply pipe 61 and the lower water supply pipe 62 can be provided with electromagnetic valves 65 and 66, respectively, to adjust the water supply amount. However, in FIG. In this example, nozzles 67 and 68 are provided.

  Further, as shown in FIG. 5, a flow rate sensor 70 is provided in the water supply pipe 60 before branching into two. Accordingly, the amount of water supplied to the upper water supply pipe 61 and the lower water supply pipe 62 can be detected by a single flow rate sensor 70, and the fixed amount of water supplied to the rice washer 3 can be obtained from either the upper water supply pipe 61 or the lower water supply pipe 62. Normally, the amount of water supplied from the lower water supply pipe 62 to the rice washer 3 is adjusted. However, even when the electromagnetic valve 66 provided in the lower water supply pipe 62 fails, the fixed amount of water can be supplied from the upper water supply pipe 61 to the rice washer 3.

  In the perspective view of FIG. 6, the water supply pipe 60 is branched into two to form an upper water supply pipe 61 and a lower water supply pipe 62, and when supplying water to the rice washer 3 from the upper water supply pipe 61 and the lower water supply pipe 62, respectively, The structure which provided 70 in the intermediate water supply pipe 71 provided between the upper water supply pipe 61 and the lower water supply pipe 62 is shown. Further, since the upper water supply pipe 61 and the lower water supply pipe 62 are provided with electromagnetic valves 65 and 66, respectively, the amount of water supplied from the upper and lower water supply pipes 61 and 62 to the rice washer 3 can be adjusted.

  A constant flow valve 72 is provided on the upstream side of the flow sensor 70 installed in the intermediate water supply pipe 71. Thus, the amount of water passing through the flow sensor 70 can be stabilized, and the adjustment accuracy of the amount of water supplied to the lower water supply pipe 62 via the intermediate water supply pipe 71 can be improved more than before.

  6, the top shower nozzles 67 and 68 of the upper water supply pipe 61 are connected to the ceiling cover 8 that covers the upper surface of the rice washer 3 (not shown in FIG. 6), and the jacket 31 is provided at the bottom of the funnel-shaped bottom of the rice washer 3. A water supply pipe 62 is connected.

  The side view of FIG. 7 shows a configuration example in which the water distribution pipe 27 is connected to the jacket portion 31 at the bottom of the rice washer 3 and air is supplied to the water in the jacket portion 31 via the air supply pipe 63.

By supplying air from the air supply pipe 63 to the water in the rice washer 3 through the jacket portion 31, the effect of washing the rice is enhanced more than before.
A check valve 74 is provided at the connection between the air supply pipe 63 and the jacket part 31 to prevent the water in the jacket part 31 from flowing back to the air supply pipe 63. By providing the check valve 74, the accuracy of water adjustment in the rice washer 3 can be increased as compared with the prior art.

  A funnel portion 8a is provided on the ceiling cover 8 of the rice washer 3, a measuring portion 75 for measuring the amount of rice is provided at the bottom of the funnel portion 8a, and the air pipe 63 is provided with air disposed on the outer wall of the funnel portion 8a. Air is supplied from the pump 76.

In addition, the soot tends to accumulate in the air supply pipe 63 in the vicinity of the connection portion with the jacket portion 31, but since the check valve 74 is provided, the soot does not accumulate and cleaning is not necessary.
As shown in the perspective view of FIG. 8, a shower nozzle 78 is provided outside the overflow port 77 of the rice washer 3, and water is supplied from a water supply pipe 60 to a water supply hose 80 upstream of the shower nozzle 78. . The water supply pipe 60 is provided with an electromagnetic valve 81, and a water supply hose 80 on the downstream side of the installation portion of the electromagnetic valve 81 is provided with a one-touch joint 82. Furthermore, the drainage hose 103 on the downstream side of the shower nozzle 78 is provided with a drainage box 104 so that water can be discharged as appropriate.

  By using the configuration shown in FIG. 8, it is possible to clean the soot that easily adheres to the drain hose 103 and the inner wall of the drain box 104 on the downstream side of the rice washer 3 with the shower water from the shower nozzle 78.

A convex portion 94a is provided on the side wall of the inspection lid 94 of the rice washer 3 shown in a perspective view in FIG. 9, and a sensor 105 that detects opening / closing of the inspection lid 94 of the rice washer 3 is provided from the convex portion 94a through the inside of the floor panel. The rice washing operation is not started when the inspection lid 94 is open.
As a result, rice washing is started with the inspection lid 94 open, and the rice and water in the rice washer 3 can be prevented from leaking to the outside, and the influence of steam can be reduced by providing an open / close detection sensor in the floor panel. There is an advantage that it does not interfere with the opening / closing operation.

  Next, the automatic control of the rice cooker of the said Example is demonstrated in FIG. First, in step S1, a control computer equipped with a memory and a CPU (not shown) reserves time, the amount of supplied rice, the amount of water supplied to the rice washer, the time for washing rice (rotation time of the stirring blade 17), the time for immersion in the rice washer 3, By an operation display device (not shown) that provides conditions necessary for the operation of the rice-washing rice cooker such as the number of times of rice washing, the water supply time to the rice washing machine 3, the drainage time from the rice washing machine 3, and the steaming time. Set. Then, in step S2, a clogging caution display and a failure / alarm display are made on the liquid crystal display screen (not shown) according to the situation.

  Thereafter, when a start switch (not shown) is pressed in step S3, it is determined whether rice is introduced from the chute 56 in step S4. If this determination is YES, the process proceeds to the rice washing process in step S6. In step 5, the rice in the rice storage tank 2 is weighed by the meter 12, the set amount of rice is supplied to the rice washer 3, and the rice is washed in the washing step in step S6.

  The rice washing process in step S6 includes a narrow rice washing process in which the rice is stirred in water and sharpened, and a rice polishing process in which the 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 the rice washer 3 is supplied with water, the stirring blade 17 is rotated for a specified time, and during that time, the soup is drained from the overflow pipe 41 via the drain box 39 and the drain port 40 as surplus water. 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 filter 15 below the hopper-like portion 3c below the rice washer 3 is removed. Through the jacket portion 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 washer 3. After the drainage of the rice washer 3 is completed, the stirring blade 17 is rotated for a specified time to perform the polishing process.

  As described above, the rice washing process and the rice polishing process in a narrow sense of supplying water, stirring, and draining are performed in the rice washer 3, respectively. In step S7, the microcomputer calculates the amount of water commensurate with the amount of rice in the rice washer 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. 3, and after the rice washer 3 is full, the water level valve 54 is opened and closed to adjust the water.

  In step S8, the washed rice in the rice washer 3 and the measured water in step S6 are dropped into the rice cooker 6 by opening and closing the dropping valve 22. At this time, the rotation of the stirring blade 17 is made faster than the rotation at the time of washing the rice so that the rice does not remain in the rice washer 3.

  In step S9, 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 S10, rice is cooked in step S11, steamed in step S12, cooked in step S13, and predetermined cooked rice is completed (step S14).

DESCRIPTION OF SYMBOLS 1 Supporting machine frame 1a Rectangular frame 1b Gate-shaped upper frame 1c Horizontal cross 2 Rice storage tank 3 Rice washer 3b Body 3c Hopper-shaped part 5 Rice cooker 6 Rice cooker 7 Kettle heating burner 8 Ceiling cover 10 Stand DESCRIPTION OF SYMBOLS 11 Control door 12 Meter 12a Metering motor 13 Receiving part 14 Loading lid sensor 15 Filter 16 Rotating shaft 16a Dropping shaft 17 Stirring blade 18 Rice loading port 19 Loading lid 20 Washing motor 21 Worm gear 22 Dropping valve 23 Dropping valve drive motor 24 Cam 25 Flow sensor 26 Water distribution pipe 27 Water distribution pipe 29 Upper water supply port 30 Lower water supply port 31 Jacket part 31a Packing 32 Float sensor 33 Upper water supply valve 35 Lower water supply valve 36 Connection pipe 39 Drainage box 40 Drainage port 41 Overflow pipe 41a Water distribution port 42 Jacket distribution pipe 43 Drain valve solenoid 44 Drain valve 45,55 Contro LeWire 53 Water level valve solenoid 54 Water level valve 56 Chute 57 Rice detection sensor 58 Open / close door 59 Door sensor 60 Water supply pipe 61 Upper water supply pipe 62 Lower water supply pipe 63 Air supply pipe 65, 66 Electromagnetic valve 67, 68 Shower nozzle 70 Flow rate sensor 71 Intermediate water supply Pipe 72 Constant flow valve 74 Check valve 75 Metering part 76 Air pump 77 Overflow port 78 Shower nozzle 80 Hose 81 Solenoid valve 82 One-touch joint 85 Horizontal movement frame 85a Horizontal frame part 85b Vertical frame part 86 Upper roller 87 Rear roller 87a Roller shaft 89 Lower roller 90 Lifting arm 90a Stopper 90b Roller 91 Spring 92 Butterfly plate 94 Inspection lid 96 Roller press 97 Roller 97a Roller rotating shaft 99 Hexagon screw 101 Butterfly bolt 103 Drain hose 104 Drain box 105 Kenfuta close detection sensor A drop shaft position adjusting means S external rice supplying means

Claims (4)

A rice washer (3) having an opening at the lower end;
A dropping valve (22) for opening and closing the opening of the rice washer (3), and a dropping shaft (16a) facing the vertical direction with the dropping valve (22) attached to the lower end,
The drop valve (22) is attached with an opening / closing operation means (such as 90) for moving the drop shaft (16a) in the vertical direction to open and close the drop valve (22).
A dropping shaft position adjusting means (A) for positioning the dropping valve (22) by moving the dropping shaft (16a) in the vertical direction above the dropping shaft (16a).
The rice-washing apparatus characterized by having provided. The opening / closing operation means (90, etc.) includes an elevating arm (90) that pivots in the vertical direction on the pivot point of the horizontal axis.
A drop shaft (16a) is connected to the tip side of the lift arm (90);
The dropping shaft position adjusting means (A) is characterized in that the dropping shaft (16a) can be moved in the vertical direction with the tip of the elevating arm (90) being stopped at the uppermost position. Rice washing equipment. Forming a threaded portion at the upper end of the dropping shaft (16a);
The rice washing apparatus according to claim 2, wherein a member (99) for screwing the threaded portion of the dropping shaft (16a) is provided in the dropping shaft position adjusting means (A). The position adjusting means (A) includes a roller (97) attached to the dropping shaft (16a) and a roller pressing plate (96) attached to the lifting arm (90).
The rice washing apparatus according to claim 3, wherein the roller (97) and the dropping shaft position adjusting means (A) can be adjusted by removing the roller pressing plate (96) from the lifting arm (90).

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