JP2009213965A - Rice transportation mechanism of rice washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To buffer the exhaustion of a blower by a cushioning material and to further guide the exhaustion of the blower laterally or downward after the collision with the cushioning material to lower an exhaustion sound and an exhaustion flow. <P>SOLUTION: The hopper 4 having a weighing machine 3 is arranged above a rice washing tank 2, the rice storage housing 5 is arranged under the rice washing tank 2, a negative pressure means 6 for reducing the pressure in the hopper 4 is connected to the hopper 4, a rice transportation means 7 for sucking the rice in the rice storage housing 5 to transport the same to the hopper 4 is provided between the rice storage housing 5 and the hopper 4, and all of them are supported by a machine frame 8. The negative pressure means 6 has the blower 22 arranged in the case part 21 provided to the lower part of the machine frame 8 to be connected to the hopper 4 and an exhaustion guide member 23 for guiding the exhaustion of the blower 22 to the outside from the case part 21 and the exhaustion guide member 23 has the cushioning material 24 against which the exhaustion of the blower 22 directly impinges and an exhaustion guide 25 for guiding the exhaustion, which impinges against the cushioning material 24, laterally to discharge the same to the outside. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a rice transport mechanism of a rice washer that can transport and supply rice (including grains such as wheat) to a hopper by suction of air.

In this type of prior art, a sealed hopper is provided at the upper part of the machine frame, a meter is provided at the lower part of the hopper, and a rice washing tank to which the grain weighed by this meter is supplied is provided. And a receiving member for receiving the grains taken out from the rice storage, and an outlet of the receiving member and the hopper are connected by a conveying pipe, and an inlet of the receiving member is provided. And a hopper are connected by an air suction pipe, and a blower of negative pressure means for making a negative pressure in the hopper is provided in the air suction pipe (see, for example, Patent Document 1).
JP 2002-95986 JP

In the prior art, since the outlet of the receiving member and the hopper are connected by a conveying pipe, and the inlet of the receiving member and the hopper are connected by an air suction pipe, air is circulated in an endless closed cycle. Although the suction efficiency is high, the structure is such that there is no escape place unless dust, rice cake, etc. are circulated and discharged together with the washed rice.
Therefore, it is conceivable to discharge the exhaust from the blower to the outside, but since the rice washer is disposed indoors, it is required to reduce the exhaust noise and the exhaust flow.
An object of this invention is to provide the rice conveyance mechanism of the rice washing machine which enabled it to solve such a problem of a prior art.

  According to the present invention, the exhaust of the blower of the negative pressure means is buffered by the cushion material, and further, after the collision with the cushion material, the exhaust is guided sideways and downward so that the exhaust noise and the exhaust flow can be reduced. An object of the present invention is to provide a rice transfer mechanism for a rice washing machine.

Specific means for solving the problems in the present invention are as follows.
First, a hopper 4 having a measuring device 3 is arranged above the rice washing tank 2, a rice storage 5 is arranged below the rice washing tank 2, and negative pressure means 6 for making the inside of the hopper 4 have a negative pressure. And a rice conveying means 7 for sucking and conveying the rice in the rice storage 5 to the hopper 4 between the rice storage 5 and the hopper 4, and the rice washing tank 2, the hopper 4 and the rice storage 5 are connected to each other. A rice transport mechanism of a rice washer supported by a machine frame 8,
The negative pressure means 6 is disposed in a case portion 21 provided in the lower part of the machine casing 8 and is connected to the blower 22 connected to the hopper 4 and the exhaust for guiding the exhaust of the blower 22 outward from the case portion 21. The exhaust guide member 23 includes a cushion material 24 that directly receives exhaust from the blower 22, and an exhaust guide 25 that guides the exhaust that hits the cushion material 24 to the side and discharges it to the outside. Is to have.

Second, the exhaust guide member 23 closes the opening formed in the front surface of the case portion 21 and covers the front surface of the inner lid body 27 provided with the exhaust duct box 26 of the blower 22. And a front cover body 28 having a porous exhaust port 28 </ b> A at the bottom, a cushion material 24 is provided on the front cover body 28, and an exhaust guide 25 is provided on the inner lid body 27.
Thirdly, the rice storage 5 is arranged at the upper part of the case part 21, the bottom of the rice storage 5 is inclined downward from the front side to the bottom part 5 A on the back side, and the blower 22 is provided at the front lower part of the case part 21. It is to arrange.
[Action]
The rice transport mechanism of the rice washing machine having the above-described configuration has the following operation.

The negative pressure means 6 can arrange the blower 22 in a compact manner by arranging the blower 22 in the case part 21 provided at the lower part of the machine casing 8, and an exhaust guide member for guiding the exhaust of the blower 22 outward from the case part 21. 23, and the exhaust gas impinging on the cushion material 24 is guided to the side and released to the outside, so that the flow rate of the exhaust gas is reduced and the exhaust sound can be reduced by the cushion material 24 and the like. .
An exhaust guide 25 is provided in an inner lid body 27 provided with an exhaust duct box 26 that can reduce exhaust noise and exhaust flow, and a cushion member 24 is provided in a front cover body 28 that covers the front surface of the inner lid body 27. By forming a porous exhaust port 28A in the lower part of 28, an exhaust silencer structure can be manufactured easily and easily.

  Further, by tilting the bottom of the rice storage 5 downward from the front side to the bottom part 5A on the back side and arranging the blower 22 at the front lower part of the case part 21, the space in the case part 21 can be used effectively and stored. The volume drop of the rice cabinet 5 can be minimized.

  According to the present invention, the exhaust of the blower of the negative pressure means can be buffered by the cushion material, and further, after the collision with the cushion material, the exhaust can be guided to the side and downward and released to the outside, and the exhaust sound and the exhaust flow can be reduced. Can be reduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3, reference numeral 1 denotes an entire commercial rice washing machine. In the rice washing machine 1, a hopper 4 having a measuring device 3 is disposed above a rice washing tank 2, and a rice storage is located below the rice washing tank 2. 5 is disposed, and negative pressure means 6 for connecting the negative pressure inside the hopper 4 to the hopper 4 is connected, and the rice in the rice storage 5 is sucked and conveyed to the hopper 4 between the rice storage 5 and the hopper 4. Conveying means 7 is provided, and the rice washing tank 2, the hopper 4 and the rice storage 5 are supported by a machine frame 8, and a mounting table 9 is provided on the upper side of the rice storage 5. The inner pot 10 or other containers can be placed.

The rice washing machine 1 can be recognized as a rice cooker by placing a rice cooker in place of the inner pot 10, as a device for washing grains such as wheat and soybeans instead of rice, and a device for conveying and weighing It can also be recognized.
The hopper 4, the rice storage 5, the negative pressure means 6, the rice conveyance means 7, the machine frame 8 and the like constitute a rice conveyance mechanism H of the rice washer 1.
The rice washing tank 2 is a cylindrical body having a lower portion formed in a funnel shape, and its upper ceiling is closed with a top plate 42 fixed to the machine frame 8, and a rice discharge port is opened at the lower end 2 A at the bottom. This rice draining port is freely opened and closed by a rice draining valve 40 exemplified by a conical valve. The rice washing tank 2 has a sealed structure so that there is no water leak or air leak.

At the center of the rice-washing tank 2, a vertical axis-shaped rotary shaft 41 is arranged, and the upper part thereof is supported by a top plate 42 via a bearing, and is rotationally driven by a rotating means having a motor, a winding transmission body and the like. Is done. A plurality of stirring rods 43 are provided radially on the rotary shaft 41, and the rice in the rice washing tank 2 is evenly stirred to effectively wash (polished rice).
A valve rod 44 with a rice drain valve 40 attached to the lower end is inserted into the hollow portion of the rotary shaft 41, and an elevating means such as a cam, a link, or a motor is provided on the upper portion of the valve rod 44 protruding above the top plate 42. The rice removal valve 40 is moved up and down by this elevating means to open and close the rice removal port. A drive mechanism 45 of the rice washing tank 2 is constituted by the rotating means of the rotating shaft 41 and the raising / lowering means of the valve rod 44.

The water-washing tank 2 is provided with water supply means connected to the water supply system. The on-off valve can be turned on and off, and water such as rice washing water can be supplied by nozzles, etc. 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.
In FIGS. 1-10, the mounting base 9 of the upper side of the rice storage 5 is formed with the plate material which has a horizontal flat surface, and the handle 9A is provided in the both sides. The mounting table 9 also serves as a lid for closing the upper opening of the rice storage 5 and can be replenished to supply rice into the rice storage 5 from the upper opening. The mounting table 9 may be pivotally supported on the machine frame 8 so that the rear end side is movable around the horizontal axis.

The rice storage 5 has a bottom inclined downward from the front side and from the left and right to the bottom 5A, and a lower half is formed in a funnel shape. A case portion is formed by a peripheral wall and a bottom wall so as to cover the lower half of the rice storage 5 21 is formed, and the lower part of the machine casing 8 is formed by the rice storage 5 and the case part 21.
A pair of left and right cylindrical pillars 13 are fixed to the rear surfaces of the rice storage 5 and the case part 21, and the top plate 42 and the hopper 4 of the rice washing tank 2 are attached to the front side of the upper part of both pillars 13. Yes.
In the rice storage 5, a rice suction member 11 and a guide tube member 18 constituting the rice transport means 7 are arranged. The rice transport means 7 includes a rice suction member 11 disposed in the rice storage 5, a rice transport member 12 that connects the upper end of the rice suction member 11 and the hopper 4, and a lower end of the rice suction member 11. An air introduction member 16 for covering the upper end and introducing air into the rice storage 5 is provided.

The air introduction member 16 extends from the top of the peripheral wall of the rice storage 5 to the vicinity of the bottom 5A, covers the rice suction member 11 and is connected to the support column 13 in an internal communication manner, and the cylindrical shape. Of the rice suction member 11 and further covers from the upper end of the rice conveying member 12 to the midway portion in the vertical direction. An opening 13B is formed, and an armor door-shaped air intake member 17 for taking in external air is provided.
The guide cylinder member 18 has a U-shaped member fixed to the inner surface of the back wall of the rice storage 5 to form a cylindrical air flow passage, and penetrates the back wall of the rice storage 5. The air flow passage communicates with the air flow passage inside the support column 13.

The upper end of the guide tube member 18 protrudes outward from the upper edge of the peripheral wall of the rice storage 5 and does not protrude from the upper surface of the rice storage 5. The mounting table 9 is formed in a rectangular shape so that the rice storage 5 can be sealed so that air, dust, and the like do not enter between the mounting table 9.
However, the air introducing member 16 is composed only of the guiding cylinder member 18, the upper end of the guiding cylinder member 18 is arranged in the vicinity of the upper edge of the peripheral wall of the rice storage 5, and the air inside the rice storage 5 from the upper end thereof. It is also possible to configure so as to suck.

The air intake member 17 is arranged higher than the lower end 2A of the rice washing tank 2 and is located on the rear side of the rice washing tank 2, so that it is difficult to be affected by the water discharged from the lower end 2A of the rice washing tank 2. It has become. The air intake member 17 is provided with a replaceable filter 19 that purifies the intake air. The air intake member 17 is provided on the front surface side of the support column 13, but may be disposed on the side surface side.
4 and 5, the rice suction member 11 is formed of a resin pipe, and the guide tube member 18 is formed by fixing a channel material (cross-sectional U shape) to the inner surface of the back wall of the rice storage 5. 11 and the guide cylinder member 18 covering this are substantially parallel, from the lower end facing the horizontal bottom 5A of the rice storage 5 to the upper end near the upper portion of the rice storage 5 from directly above the bottom 5A. It is inclined to one side (right side in the front view of FIG. 1), and each upper end is connected to the column 13.

A lower end surface 18A of the guide cylinder member 18 is a rectangular shape that is substantially parallel to the bottom 5A formed by a horizontal surface of the rice storage 5 and is a side view with the lower end suction surface 11A of the rice suction member 11. At
The lower end suction surface 11A of the rice suction member 11 is located in the vicinity of the bottom 5A of the rice storage 5 and has an inclined surface, and the approximate center in the inclination direction is the approximate center and side surface of the lower end surface 18A of the guide tube member 18. Cross in sight.
That is, the rice suction member 11 cuts the end surface of the pipe in a direction perpendicular to the axis, and the lower end suction surface 11A is inclined with respect to the horizontal plane by arranging it in the inclined posture as described above. Therefore, the lower end suction surface 11A is an inclined surface in which the inclined side of the rice suction member 11 is lower than the anti-inclined side.

Since the lower end surface 18A of the guide tube member 18 covers the lower end suction surface 11A of the rice suction member 11 while intersecting in a side view, the lower end suction surface 11A of the rice suction member 11 is buried in the stored rice to be blocked. The lower suction surface 11A of the rice suction member 11 has its lower half inclined into the stored rice, so that the suction of the rice can be ensured, and the upper half of the slant comes out of the stored rice into the guide tube member 18, It is possible to ensure the air flow from the guide tube member 18 to the rice suction member 11.
1 and 5, the gap T between the lower end surface 18A of the guide tube member 18 and the periphery of the flat surface of the bottom portion 5A is the gap T1 on the inclined side of the guide tube member 18 is the gap on the opposite side. It is set slightly wider than T 2, and the rice stored in the rice storage box 5 easily enters the lower end suction surface 11 A of the rice suction member 11. The gap T2 may be substantially the same as the gap T1.

The cylindrical column 13 has a long opening 13A that is long in the up-down direction on one side surface (rear surface or side surface), and the long opening 13A is closed by a pillar cover 14, and this long opening The rice conveying member 12 is inserted into the support column 13 through 13A.
1 to 3 and 8 to 13, the rice conveying member 12 is formed of a resin pipe or hose, the lower end is detachably connected to the upper end of the rice suction member 11, and the upper end is provided in the hopper 4. It is detachably connected to the outlet pipe 32, and by removing the column cover 14, it is possible to clean dust, wrinkles and the like taken out from the long opening 13A and adhered to the inside.

The hopper 4 is provided with an air suction pipe 31 for the negative pressure means 6, a rice outlet pipe 32 for the rice transport means 7, and a rice full sensor 33 at the upper part, and a supply port 4 A at the lower part. , Communicated with the measuring device 3.
The tip of the rice outlet pipe 32 protrudes inward from the peripheral wall of the hopper 4 and is shifted laterally from right above the supply port 4A, and drops rice carried in by wind power to the supply port 4A. Placed in position.
A downward angled surface 35 is formed on the ceiling of the hopper 4, and the rice full sensor 33 is attached to one inclined surface 35 </ b> A of the downward angled surface 35. This rice full sensor 33 is located substantially directly above the supply port 4A, and can detect an upper dent first formed on the top of the accumulated rice when the rice is supplied to the meter 3.

When the rice full sensor 33 detects the depression in the upper part of the accumulated rice, the negative pressure means 6 is operated to start the rice carry-in, and by bringing the rice carry-in start time earlier, for example, a rice washing tank If the capacity of 2 is 5 kg and the weighing of the weighing instrument 3 is 5 go, the maximum capacity of the hopper 4 may be a small amount (for example, 5 go) added to 5 kg. Can be kept in a small capacity.
The one inclined surface 35A of the chevron surface 35 and the rice outlet pipe 32 are located in parallel and face in the front-rear direction as shown in FIG. 2 and face the other inclined surface 35B of the downward chevron surface 35. The air suction pipe 31 is provided on the side wall of the steel plate. The air suction pipe 31 faces in the left-right direction so that the rice discharged from the rice outlet pipe 32 is not directly sucked into the air suction pipe 31. Note that the mouth of the air suction pipe 31 is covered with a metal mesh 50 formed of punching metal or the like so as not to suck rice.

The rice that is carried into the hopper 4 from the rice outlet pipe 32 is deposited near the supply port 4A, but when it becomes close to full, the amount of air in the hopper 4 decreases, and the scattering of rice also changes. Even if it becomes so high that it accumulates to the ceiling in the circumference from just under the rice full sensor 33, even if it becomes such, the depression will be made in the accumulation rice right above the supply port 4A in the first measurement or several times. The sensor 33 can detect the depression.
The hopper 4 and the measuring instrument 3 above the top plate 42 are covered with a head cover 48, and an operation panel 49 is provided on the front surface of the head cover 48.

An inspection window 36 is formed in the ceiling portion of the hopper 4 of the head cover 48, and a weight 37 </ b> A is provided on the lid body 37 that closes the inspection window 36, thereby strengthening the sealing force of the inspection window 36.
The meter 3 is a hollow drum type in which a drum rotates in one direction by a driving unit having a motor and a transmission unit. The drum 26 has a constant rice storage amount (for example, 5 go) and forms a helical cutout, and the rice falls downward from the cutout every rotation.
Accordingly, the rice is weighed based on the number of revolutions of the drum, and this number of revolutions is controlled by the preset value pulse transmission of the counter set in advance by the fixed quantity dial, and is a pulse count type.

1 to 3 and 14, the negative pressure means 6 includes a blower 22 and an exhaust guide member 23. The blower 22 is disposed in a case portion 21 provided at the lower portion of the machine casing 8 and is connected to the hopper 4 via a negative pressure pipe 47 inserted into the left hollow column 13. 23 guides the exhaust from the blower 22 to the outside of the case portion 21.
By tilting the bottom of the rice storage 5 downward from the front side and the left and right sides to the bottom 5A on the back side, spaces are formed on the front side and the left and right sides in the case part 21, and the front of the case part 21 is formed. A blower 22 is disposed in the lower left space.

The exhaust guide member 23 includes a cushion material 24 that directly contacts the exhaust of the blower 22 and an exhaust guide 25 that guides the exhaust that has hit the cushion material 24 to the side and discharges the exhaust to the outside.
The case portion 21 includes an inner lid body 27 that closes an opening formed on the front surface thereof, and a front cover body 28 that is easily attached to and detached from the outer side of the inner lid body 27, and these are also the exhaust guide member 23. Part of
The inner lid body 27 is provided with an exhaust duct box 26 connected to the blower 22 via an exhaust duct, and the exhaust duct box 26 can be exhausted to the front cover body 28 side. Is provided with an exhaust guide 25 formed by fixing a band plate or an angle member so as to close the space between the front cover body 28 and the lower side of the exhaust duct box 26. The exhaust guide 25 may be provided on the front cover body 28.

The front cover body 28 is provided with a cushioning material 24 that is directly exposed to exhaust air on the front side of the exhaust duct box 26. Exhaust gas that strikes the cushioning material 24 and is guided laterally by the exhaust guide 25 from below the case portion 21 So that the lower wall of the front cover body 28 is a porous exhaust port 28A. The exhaust port 28A of the front cover body 28 may be formed of punching metal.
Next, the rice transfer operation to the rice washing tank 2 in the rice transfer mechanism H will be described.
When the air is exhausted by operating the blower 22, the air in the hopper 4 is sucked through the negative pressure pipe 47 and the air suction pipe 31, and the pressure in the hopper 4 is made negative, and the rice outlet pipe 32, the rice transport member The rice in the rice storage 5 is sucked through 12 and the rice suction member 11.

Air outside the rice washing tank 2 is introduced into the support column 13 through the air intake member 17, and the air flows through the guide tube member 18 of the air introduction member 16 in the rice storage 5, and this air flow is The rice enters the rice suction member 11 through the lower end suction surface 11 </ b> A through the lower end surface 18 </ b> A of the guide tube member 18, and is carried into the hopper 4 through the rice transport member 12.
At this time, since air is introduced into the rice storage 5 through the air intake member 17, the air flow is not hindered by the stored rice in the rice storage 5.
The air released from the hopper 4 is discharged from the air suction pipe 31 and collides with the cushion material 24 from the blower 22 through the exhaust duct box 26, and is exhausted by the exhaust guide 25, the inner lid body 27 and the front cover body 28. Guided sideways and downward, the exhaust sound and the exhaust flow are reduced and discharged from the exhaust port 28A of the front cover body 28 to the outside outside.

A sufficient amount of rice accumulated in the hopper 4 is supplied to the washing rice tank 2 by operating the meter 3. When a dimple is formed in the upper part of the accumulated rice just above the supply port 4A by rotating the drum of the measuring device 3 once or a plurality of times, the rice full sensor 33 on the inclined surface 35A located directly above the supply port 4A. Detects the depression, i.e., detects that the rice is not full or has been reduced from full, and the blower 22 is activated to start conveying rice. Continue to carry rice until the rice is full.
When the rice is fully accumulated in the hopper 4, the rice full sensor 33 detects it and the operation of the blower 22 is stopped. At this time, rice may be deposited to a position higher than the rice full sensor 33 at a position away from the rice full sensor 33.

Even when the maximum amount of rice is supplied to the rice washing tank 2, if the rice for one metering is left in the hopper 4, one time for the next metering is secured, and there is space in the drum of the metering device 3. Therefore, there is no problem even if the blower 22 is started after the required amount of rice has been supplied to the rice washing tank 2.
In the present invention, the shape of each member and the positional relationship of front / rear / left / right / up / down are best configured as shown in FIGS. However, it is not limited to the said embodiment, A member, a structure can be variously deformed, and a combination can also be changed.

For example, the machine frame 5 is formed by one central support column 13, the rice suction member 11 and the guide tube member 18 are extended directly from the bottom 5 A, and the rice transport member 12 and the negative pressure pipe 47 are provided in the support column 13. May be arranged.
A sensor for detecting the absence of residual rice is provided at the lower part of the hopper 4 so that it can be detected that rice has not been replenished in the hopper 4 or the exhaust port 28A of the front cover body 28 is connected to the front cover body 28. You may form in a side surface or a side surface, and a lower surface.

It is a schematic explanatory drawing which shows embodiment of this invention. It is the same perspective front view. It is the same perspective view. It is a cross-sectional front view of a rice storage. It is an expanded sectional view of a rice storage warehouse bottom. It is a left view of a rice storage. It is a top view of a rice storage. FIG. 3 is a sectional view taken along line XX in FIG. 2. It is a cross-sectional side view of an air intake member. It is the YY sectional view taken on the line of FIG. It is a see-through | perspective front view of a hopper. It is a top view of a hopper. It is a side view of a hopper. It is a cross-sectional side view of an exhaust guide member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Rice washing machine 2 Rice washing tank 3 Measuring instrument 4 Hopper 5 Rice storage 5A Bottom part 6 Negative pressure means 7 Rice conveyance means 8 Machine frame 11 Rice suction member 11A Lower end suction surface 12 Rice conveyance member 13 Strut 22 Blower 23 Exhaust guide member 24 Cushion Material 25 Exhaust guide 26 Exhaust dust box 27 Inner lid 28 Front cover 31 Air suction pipe 32 Rice outlet pipe H Rice transport mechanism

Claims (3)

A hopper (4) having a meter (3) is disposed above the rice washing tank (2), a rice storage (5) is disposed below the rice washing tank (2), and the interior of the hopper (4) is disposed inside. A rice transporter that connects negative pressure means (6) for making a negative pressure and sucks and conveys the rice in the rice storage (5) to the hopper (4) between the rice storage (5) and the hopper (4). A rice transfer mechanism of a rice washer provided with means (7) and supporting these rice washing tank (2), hopper (4) and rice storage (5) with a machine frame (8),
The negative pressure means (6) is disposed in a case part (21) provided in the lower part of the machine frame (8) and connected to the hopper (4), and a blower (22) And an exhaust guide member (23) for guiding the exhaust gas outward from the case portion (21). The exhaust guide member (23) is a cushion material (24) directly against the exhaust of the blower (22), and the cushion. A rice transport mechanism for a rice washer comprising an exhaust guide (25) that guides the exhaust that has hit the material (24) to the side and discharges the exhaust to the outside.   The exhaust guide member (23) includes an inner lid (27) that closes an opening formed in the front surface of the case portion (21) and is provided with an exhaust duct box (26) of the blower (22), and the inner lid. A front cover body (28) covering a front surface of the body (27) and having a porous exhaust port (28A) at a lower portion, and a cushion material (24) is provided on the front cover body (28), and the inner lid The rice transport mechanism of the rice washer according to claim 1, wherein an exhaust guide (25) is provided on the body (27).   The rice storage box (5) is arranged on the upper part of the case part (21), the bottom of the rice storage box (5) is inclined downward from the front side to the bottom part (5A) on the back side, and the case part (21) The rice transport mechanism of the rice washer according to claim 1 or 2, wherein a blower (22) is arranged at the front lower part.

Images