JP3623925B2 - Rice washing equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice washing apparatus.
[0002]
[Prior art]
In Japanese Patent Laid-Open No. 8-140846, in a rice supply mechanism that lifts and supplies rice from below to a rice storage unit provided at the upper part of the machine frame, the rice storage unit is hermetically sealed, and the inside of the rice storage unit is negatively charged. A rice supply mechanism is disclosed in which negative pressure generating means for connecting pressure is connected and the inside of the rice storage unit is set to a negative pressure to supply the rice in the rice storage tank to the rice storage unit by suction.
[0003]
[Problems to be solved by the invention]
In the mechanism disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 8-140846, the negative pressure generating means for making the inside of the rice storage portion a negative pressure is provided in the upper portion of the rice storage portion. When this rice storage part is regarded as a rice washing tank in the rice washing apparatus, the negative pressure generating means is located in the upper part of the rice washing tank.
However, in some cases, the negative pressure generating means (suction device) may be arranged at a position other than the upper part of the rice washing tank, for example, below the rice washing tank, due to the structure of the rice washing apparatus. In that case, since the suction device and the rice washing tank are located apart from each other, it is necessary to connect the two with a suction pipe. Considering this, the first technical means proposed in the present invention is to connect the suction device and the rice washing tank with a suction pipe.
[0004]
When a suction pipe is provided, connection with a rice washing tank is required, and the connection location may be the upper part of the rice washing tank corresponding to the position where the negative pressure generating means of JP-A-8-1408446 is provided. Although it is conceivable, in order to increase the degree of freedom of piping, it may be desired to connect a suction pipe to other parts of the rice washing tank. Considering this, the second technical means proposed in the present invention is to connect the suction pipe to the side wall of the rice washing tank. By connecting the suction pipe to the side wall of the rice washing tank, the degree of freedom of piping is increased.
In the rice washing apparatus having a rice washing tank that is detachable from the machine frame, a first technical means for connecting the suction device and the rice washing tank with a suction pipe, and a second technique for connecting the suction pipe to the side wall of the rice washing tank. As a result of employing this technical means, the following problems occur.
[0005]
In other words, since the suction pipe is connected to the side wall of the rice washing tank, when removing the rice washing tank for inspection or cleaning, it is necessary to remove the rice washing tank from the machine frame and also remove it from the suction pipe, which is troublesome. .
This invention is made | formed in view of this situation, The subject is the 1st of connecting a suction device and a rice washing tank with a suction pipe in the rice washing apparatus which has a rice washing tank which can be attached or detached with respect to a machine frame. The second technical means of connecting the suction pipe to the side wall of the rice washing tank is employed, and the removal of the rice washing tank is prevented from being troublesome.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the present invention employs the following technical means. That is, the feature of the present invention is that rice is supplied from the rice storage tank into the rice washing tank by sucking the air in the rice washing tank with a suction device to make the inside of the rice washing tank have a negative pressure. In the rice washing apparatus that is detachable from the machine frame, the suction device and the rice washing tank are connected by a suction pipe, and the suction pipe is connected to the side wall of the rice washing tank, and the side wall of the rice washing tank. At least the predetermined range from the connected portion is that it is formed of a flexible pipe that can be bent.
[0007]
According to such a configuration, at least a predetermined range from the portion connected to the side wall of the suction pipe is constituted by a flexible pipe that can be bent, so when removing the rice washing tank from the machine frame, the suction pipe is connected to the rice washing tank. Even if it is left, the rice washing tank can be moved from the mounting position on the machine frame, and the rice washing tank can be easily attached and detached.
In addition, it is preferable that the suction pipe is detachably attached to the side wall of the rice washing tank. If the suction pipe can be attached to and detached from the rice washing tank, the rice washing tank can be easily detached from the machine frame, and since the suction pipe is a flexible pipe, the suction pipe can be easily attached and detached.
[0008]
Furthermore, the range in which the suction pipe is a flexible pipe that can be bent preferably has a length equal to or greater than the diameter of the rice washing tank. By ensuring that the length of the flexible pipe is equal to or greater than the diameter of the rice washing tank, the rice washing tank can be attached and detached more easily.
Furthermore, if the said suction pipe is connected to the upper part of the side wall of the said rice washing tank, and will also serve as the overflow pipe | tube for discharging | emitting excess water to the exterior of a machine, a structure will become simple.
And if the drain pipe attached to the lower part of the said rice washing tank is also a flexible pipe which can be bent, attachment and detachment of a rice washing tank will become still easier.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show the entire rice washing apparatus 1. This rice washing apparatus 1 includes a rice washing tank 3 provided at the upper part of the apparatus frame 2, a rice storage tank 4 provided at the lower part of the machine frame 2, and a rice transport mechanism for conveying rice from the rice storage tank 4 to the rice washing tank 3. And have.
Further, an inner pot 11 of the rice cooker is arranged between the rice washing tank 3 and the rice storage tank 4, and rice cooking is performed in another place, but by arranging the rice cooker instead of the inner pot 11, the rice washing The apparatus 1 can be used as a rice cooker.
[0010]
The machine machine frame 2 includes a machine frame upper body 12 to which the rice washing tank 3 is attached, columns 13a and 13b extending downward from the left and right sides of the machine frame upper body 12, and machine frames provided at the lower portions of the columns 13a and 13b. A lower body 14 is provided. The left and right support columns 13a and 13b are located on the rear side of the apparatus.
The rice washing tank 3 is attached to the lower part of the machine frame upper body 12. An operation panel is provided in front of the machine casing upper body 12 (not shown). This rice washing tank 3 is a cylindrical body having a lower portion formed in a funnel shape, and a rice discharge port is opened at the bottom. This rice draining port can be freely opened and closed by a rice draining valve 15 exemplified by a conical valve. The rice washing tank 3 has a sealed structure so that there is no water leakage or air leakage.
[0011]
The rice washing tank 3 is detachably attached to the machine frame 2 via a plurality of stoppers 35. The stopper 35 is an operation that is pivotally supported by a pin 35C on an engaged piece 35A provided on the top plate 17 constituting the lower surface of the machine body upper body 12 and an attachment piece 35B provided on the upper part of the rice washing tank 3. The lever 35D has an engagement arm 35F pivotally supported by a pin 35E in the middle of the operation lever 35D in the longitudinal direction. The operation lever 35D is lifted in the direction indicated by the arrow C with the pin 35C as a fulcrum, and is connected to the engagement arm 35F. The engagement is released by the operation in the direction indicated by the arrow D, and the rice washing tank 3 can be detached from the machine frame 2. On the other hand, when the operating arm 35D is pushed in the direction opposite to the arrow C in a state where the engaging arm 35F is engaged with the engaged piece 35A, the rice washing tank 3 can be attached to the machine frame 2 by a so-called teco link action. it can.
[0012]
In the center of the rice washing tank 3, a vertical axis-shaped rotating shaft 16 is disposed, and the upper part thereof is supported by a ceiling plate 17 on the ceiling of the rice washing tank 3 via a bearing, and has a motor, a winding transmission, and the like. It is rotationally driven by the rotating means. The rotating shaft 16 is provided with a plurality of stirring rods 18 on the radiation so that the rice in the rice washing tank 3 is evenly stirred and effectively washed (polished rice).
A valve rod 19 with a rice drain valve 15 attached to the lower end is inserted into the hollow portion of the rotary shaft 16, and an elevating means such as a cam, a link, or a motor is provided above the valve rod 19 protruding above the top plate 17. The rice removal valve is moved up and down by this lifting and lowering means to open and close the rice discharge port.
[0013]
The rotating means and the lifting / lowering means of the rice washing tank 3 are the same as those known in the art and are shown as a drive mechanism 20 and are mounted on the top surface of the top plate 17 or the machine casing 2.
The water washing tank 3 is provided with water supply means connected to the water supply system, and it is possible to supply rice washing water, rice cooking water, etc. by turning on and off the on-off valve and nozzles, etc., and adjusting the opening and closing of the on-off valve and water supply By controlling time etc. in a control part, the grade of the rice washing is controlled and the amount of water addition and subtraction of rice cooking water can be adjusted.
Further, one end of a drain pipe 27 is connected to the lower part of the rice washing tank 3, and the water in the rice washing tank 3 can be drained outside the machine through a drain box 28 to which the other end of the drain pipe 27 is connected. ing. The drain pipe 27 is configured by a flexible pipe that is formed of a flexible material. Note that a drain valve (not shown) is provided in the drain box 28, and drain control can be performed by controlling the drain valve on / off by the control unit.
[0014]
The lower part of the rice storage tank 4 is formed in a funnel shape, and a rice discharge port is opened at the bottom, and a weighing machine 5 is provided at the rice discharge port.
The weighing machine 5 is a driving unit having a motor and a transmission unit, and is a hollow drum type in which the drum 26 rotates in one direction. The drum 26 has a constant rice storage capacity, forms a cutout on the spiral, and drops the rice downward from the cutout every rotation.
Accordingly, the rice is weighed by the number of revolutions of the drum 26, and this number of revolutions is controlled by a preset value pulse transmission of a counter set in advance by a fixed quantity dial, which is a pulse count type.
[0015]
A receiving member 6 is disposed below the weighing machine 5. When the helical cut-out port of the drum 26 faces downward, the receiving member 6 is supplied with a fixed amount of rice falling.
The receiving member 6 is a cylindrical member having an internal cavity and allows air to flow in the axial direction. The lower end of the rice supply pipe 7 is at the outlet of one end and the lower end of the suction pipe 8 is at the inlet of the other end. Each is connected. The receiving member 6 and the weighing machine 5 are preferably kept airtight.
[0016]
The rice supply pipe 7 is housed in one support column 13b and extends to the upper frame body 12 along the support column 13b. The rice supply pipe 7 is formed of a flexible pipe that is formed of a flexible material and can be bent.
The rice supply pipe 7 is connected to the rice inlet 30 formed in the top plate 17 which is also the ceiling of the rice washing tank 3 in the machine body upper body 12, and the rice conveyed by the rice supply pipe 7 is fed from the rice inlet 30. It is discharged into the rice washing tank 3. Since the opening of the rice inlet 30 is downwardly open, that is, downwardly directed toward the lower part of the rice washing tank 3, the rice is discharged downward.
[0017]
The suction pipe 8 is housed in the other support column 13a and extends to the upper frame body 12 along the support column 13a. A suction device 9 composed of a blower with a motor or the like is provided at an appropriate position of the suction pipe 8, in the illustrated example, near the lower end near the receiving member 6, and connects between the suction device 9 and the rice washing tank 3. The inside of the rice washing tank 3 sealed through the suction pipe 8 can be set to a negative pressure.
The suction pipe 8 that connects the suction device 9 and the rice washing tank 3 is provided with a huge portion 31 that is formed to have a larger volume than the suction pipe 8 at the connecting portion with the suction device 9.
[0018]
The suction pipe 8 extends from the huge portion 31 to the inside of the machine frame upper body 12, and further extends downward from the machine frame upper body 12 through the top plate 12 to the outside of the rice washing tank 3. It is connected. That is, the suction pipe 8 is connected to the drain pipe 27. The suction pipe 8 is connected to the drain pipe 27 in order to use the suction pipe 8 also as an overflow pipe, and details will be described later.
Here, in the suction pipe 8, the first portion 8a extending from the enormous portion 31 through the inside of the machine body upper body 12 to the top plate 17 is formed of a flexible pipe made of a flexible material. The second portion 8 b extending from the top plate 17 to the drainage box 28 is configured by a rigid pipe that does not bend for stable support of the drainage box 28.
[0019]
The second portion 8 b of the suction pipe 8 is also connected to a third portion 8 c that is connected to the rice washing tank 3. One end of the third portion 8c of the suction pipe 8 is connected to the air inlet 39 of the rice washing tank 3, and the other end is connected to a midway portion in the longitudinal direction of the second portion 8b. The intake port 39 of the rice washing tank 3 is provided on the side wall of the rice washing tank, and the suction pipe 8 is connected to the side wall of the rice washing tank.
The third portion 8c constituting a part of the suction pipe 8 is made of a flexible pipe made of a flexible material. As shown in FIG. 5, the third portion 8 c of the suction pipe 8 is detachably provided with respect to the intake port 39 of the rice washing tank 3, and both ends by inserting one end of the third portion 8 c into the intake port 39. And can be separated by pulling out one end of the third portion 8c from the air inlet 39. In addition, in order to maintain the connection state of the 3rd part 8c and the inlet 39 firmly, the fastener (illustration omitted) which clamps the 3rd part 8c detachably from around the connection part of the 3rd part 8c and the inlet 39 ) May be provided.
[0020]
Further, the drain pipe 27 is also detachably provided in the drain port 40 of the rice washing tank 3, and both can be connected by inserting one end of the drain pipe 27 into the drain port 40, and one end of the drain pipe is connected to the drain port. Both can be separated by pulling out from 40. In addition, in order to maintain the connection state of the drain pipe 27 and the drain port 40 firmly, a fastener (not shown) is provided for detachably tightening the drain pipe 27 from around the connection portion of the drain pipe 27 and the drain port 40. May be.
When removing the stopper 35 and removing the rice washing tank 3 from the machine frame 2, the suction pipe 8 (the third portion 8 c) and the drain pipe 27 are flexible pipes that can be bent. Even if the pipe 27 remains connected, the rice washing tank 3 can be moved from the mounting position to the machine frame 2, and the presence of the suction pipe 8 and the drain pipe 27 does not interfere with the attachment / detachment of the rice washing tank 3.
[0021]
Further, since the suction pipe 8 and the drain pipe 27 that are detachable with respect to the rice washing tank 3 are flexible pipes, the suction pipe 8 and the drain pipe 27 can be easily attached and detached.
The drainage port 40 and the drainage box 28 are located at substantially the same height, and the drainage pipe is arranged so that the longitudinal direction is substantially horizontal, whereas the third portion 8c of the suction pipe 8 is longitudinally long. The air inlet 39 and the connection portion of the third portion 8c to the second portion 8b are present at positions separated in the vertical direction. For this reason, the length of the third portion 8c of the suction pipe 8 is longer than when the intake port 39 and the connection portion of the third portion 8c to the second portion are set to the same height. ing. Since the third portion 8c of the suction pipe 8 has a certain length, it is easy to move the rice washing tank while the third portion 8c is connected to the rice washing tank 3 when the rice washing tank 3 is attached or detached. The attachment / detachment work becomes easy.
[0022]
In the embodiment, the length of the third portion 8c is set to about the diameter of the rice washing tub 3 to ensure a sufficient length, but it may be longer than that. Note that the third portion 8c of the suction pipe 8 has a length that allows the third portion 8c to be connected to the intake port 39 while being slackened in the longitudinal direction, and the third portion 8c is connected to the intake port 39. Since the third portion 8c is sometimes not in a tensioned tension state, the third portion 8c can be easily attached to and detached from the air inlet 39, and the rice washing tank 3 can be easily attached to and detached from the machine frame 2.
Part of the third portion 8c and the second portion 8b of the suction pipe 8 also serves as an overflow pipe for discharging excess water from the rice washing tank 3 to the outside of the machine. That is, when the water level in the rice washing tank 3 rises from the position of the suction pipe third portion 8c connected to the upper part of the side wall of the rice washing tank 3, the excess water is a suction pipe third portion 8c and second portion that are also overflow pipes. It flows into the drainage box 28 through the lower part of 8b and is discharged out of the machine.
[0023]
Here, since the suction pipe third portion 8c extends downward from the intake port 39 which is also an overflow port, the overflow water easily flows. That is, since the third portion 8c is connected to the second portion 8b at a position lower than the intake port 39, the overflow water easily flows.
Further, when the suction pipe 8 is used for suction, the suction pipe 8 connected to the drainage system needs to be shut off from the drainage system (the drainage box 28 and the drainage pipe 27). A shut-off valve (not shown) for shutting off the suction pipe 8 from the drainage system is provided. The shut-off valve may be a valve controlled by the control unit so as to shut off the suction pipe 8 and the drainage box 28 when the suction device 9 is operated, or the suction pipe 8 from the drainage box 28 side at the time of suction. However, it may be a floating valve that moves downward by gravity to communicate between the suction pipe 8 and the drainage box 28 when not sucked.
[0024]
Note that the suction pipe 8 may be connected directly to the air inlet 39 on the side wall of the rice washing tank 3 without being connected to the drainage box 28.
Since the rice supply pipe 7 and the suction pipe 8 are connected to the rice washing tank as described above, when the suction device 9 is operated, the shut-off valve shuts off the suction pipe 8 and the drainage system and is sealed via the suction pipe 8. The inside of the washed rice tub 3 can be set to a negative pressure. And if the inside of the rice washing tank 3 is made into a negative pressure, the inside of the rice supply pipe 7 will also become a negative pressure, thereby sucking the rice in the receiving member 6 and sucking and conveying the rice into the rice washing tank 3. Become. That is, the rice supply pipe 7, the suction pipe 8, and the suction device 9 constitute a rice transport mechanism. The air sucked by the suction device 9 is returned into the receiving member 6.
[0025]
The conveyance of the rice by suction creates an air flow in a closed path constituted by the rice supply pipe 7, the suction pipe 8 and the rice washing tank 3, and operates the meter 5 to rotate the drum 26. The rice falling into the receiving member 6 at each rotation is sent into the rice washing tank 3 by the air flow and discharged from the rice inlet 30 into the rice washing tank 3. When the operation of the suction device 9 is stopped after the weighing machine 5 discharges and transports the required amount of rice, the required amount of rice is stored in the rice washing tank 3.
The rice supplied into the rice washing tank 3 from the rice inlet 30 is discharged into the rice washing tank 3 through the guide portion 45. The guide unit 45 guides the rice dropped and released from the rice slot 30 to reduce the rice release momentum. By reducing the rice release momentum by the guide unit 45, the guide portion 45 has a great momentum. It is possible to reduce that the rice released in step 1 collides with the rice washing tank 3 and is crushed to become crushed rice.
[0026]
When rice is supplied into the rice washing tank 3, water is supplied into the rice washing tank 3 by the water supply means, and the rice is washed by the rotation of the stirring rod 18.
As shown in FIGS. 6 and 7, the stirring rod 18 is made of a plurality of solid or hollow rods, and the first to fourth stirring rods 18 </ b> A, 18 </ b> B, 18 </ b> C, 18 </ b> D are arranged radially with respect to the rotating shaft 16. Is provided. Each stirring rod 18A, 18B, 18C, 18D is provided with a phase shift of 90 °. The first stirring rod 18 </ b> A is provided on the upper portion of the rotating shaft 16. The second stirring rod 18B is 90 ° out of phase with the first stirring rod 18A, and is provided in the middle of the upper and lower portions of the rotary shaft 16. The third stirring rod 18C is 180 ° out of phase with the first stirring rod 18A, and is provided in a wide range from the upper part to the lower part of the rotating shaft 16. The fourth stirring rod 18 </ b> D is 180 ° out of phase with the second stirring rod 18 </ b> B and is provided below the rotating shaft 16.
[0027]
The third stirring rod 18C is the longest in the radial direction, and then the second stirring rod 18B, the first stirring A, and the fourth stirring rod 18D are formed to be shorter in this order in the radial direction. The upper and lower ends of the first to third stirring rods 18A, 18B, 18C have horizontal portions bent in the radial direction so as to be fixed to the rotary shaft 16. As for the fourth stirring rod 18D, the upper end portion is fixed to the rotary shaft 16, but the lower end portion is extended near the upper portion of the rice removal valve 15 to be a free end.
Thus, the rice in the rice washing tank 3 can be evenly stirred by providing a plurality of stirring bodies in which the phase around the rotating shaft 16 is shifted and the vertical position, length, and radial length are different.
[0028]
Further, the third stirring rod 18C, which is the longest in the radial direction, is bent at the radially outer end of the third stirring rod 18C in the direction opposite to the rotation direction of the rotary shaft 16 indicated by the arrow in FIG. Has been. By bending in this way, the horizontal portion of the stirring bar is bent, and it is possible to suppress the generation of residual rice by leaving rice in the horizontal portion of the horizontal portion of the stirring bar rather than the straight portion. it can.
The present invention is not limited to the above embodiment.
[0029]
【The invention's effect】
According to the present invention, since at least a predetermined range from the portion connected to the side wall of the suction pipe is constituted by a flexible pipe that can be bent, the suction pipe is connected to the rice washing tank when the rice washing tank is removed from the machine frame. Even if left, the rice washing tank can be moved from the mounting position to the machine frame, and the rice washing tank can be easily attached and detached.
[Brief description of the drawings]
FIG. 1 is a front view of a rice washing apparatus.
FIG. 2 is a side view of the rice washing apparatus.
FIG. 3 is an enlarged side view of the stopper.
FIG. 4 is an enlarged side view showing a stopper release operation.
FIG. 5 is a partial front view of the rice washing apparatus with the rice washing tank removed from the machine frame.
FIG. 6 is a perspective view of a rotating shaft and a stirring rod.
FIG. 7 is a plan view of a rotating shaft and a stirring rod.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rice washing apparatus 2 Apparatus frame 3 Rice washing tank 4 Rice storage tank 8 Suction pipe 8c Flexible pipe 27 Drain pipe

Claims (5)

Rice is supplied from the rice storage tank (4) into the rice washing tank (3) by sucking the air in the rice washing tank (3) by the suction device (9) and making the inside of the rice washing tank (3) negative pressure. And the rice washing tank (3) is detachable from the machine frame (2).
The suction device (9) and the rice washing tank (3) are connected by a suction pipe (8),
The suction pipe (8) is connected to the side wall of the rice washing tank (3), and at least a predetermined range (8c) from the portion connected to the side wall of the rice washing tank (3) is constituted by a flexible pipe that can be bent. The rice-washing apparatus characterized by being made. The rice washing apparatus according to claim 1, wherein the suction pipe (8) is detachably attached to a side wall of the rice washing tank (3). The range (8c) in which the suction pipe (8) is a flexible pipe that can be bent has a length equal to or greater than the diameter of the rice washing tank (3). . The said suction pipe (8) is connected to the upper part of the side wall of the said rice washing tank (3), and also serves as the overflow pipe for discharging | emitting excess water outside an apparatus, The any one of Claims 1-3 characterized by the above-mentioned. The rice washing apparatus according to crab. The rice washing apparatus according to any one of claims 1 to 4, wherein the drain pipe (27) attached to the lower part of the rice washing tank (3) is also a flexible pipe that can be bent.

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