JP2013078728A - Rice washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to surely suck the rice on the bottom of a rice storage.SOLUTION: A rice washing machine is provided with: a rice washing tank 2 for washing the rice; a measuring machine 3 for measuring the rice to feed to the rice washing tank 2; the upper hopper 4 for holding the rice and feeding it to the measuring machine 3; a negative pressure means E for making the inside of the upper hopper 4 negative in pressure; a rice storage 5 positioned below the rice washing tank 2 to store the rice; and a rice-conveying means F for suction-conveying the rice in the rice storage 5 into the upper hopper 4 by the negative pressure of the inside of the hopper 4. The rice-conveying means F has a suction port 5a for taking out the rice formed on the lowest part of a side wall 5B of the rice storage 5, and a rice suction member 17 having a rice path 17a for sucking the rice and communicating with the upper hopper 4 is connected to the suction port 5a. Adjacently to the rice path 17a of the rice suction member 17, an air path 17b is formed to generate the negative pressure in the rice path 17a by sucking air from the outside of the rice storage 5.

Description

  The present invention relates to a rice washing machine capable of conveying and supplying rice (including grains such as wheat) to an upper hopper by sucking air.

  In this type of prior art, as disclosed in, for example, Patent Document 1, a rice washing tank for washing rice, a measuring instrument for weighing and supplying rice to this rice washing tank, and weighing rice while holding rice The upper hopper for supplying rice to the vessel, the negative pressure means for making the inside of the upper hopper negative, the rice storage for storing rice located below the washing tank, and the negative pressure inside the upper hopper Rice transport means for sucking and transporting rice in the rice box to the upper hopper.

  And the said rice conveyance means, the rice suction member arrange | positioned in the rice storage, the rice conveyance member which connects this rice suction member and a hopper, the said rice suction member is covered, and air is supplied in a rice storage And a bottom suction surface of the rice suction member is positioned near the bottom of the rice storage and is inclined with respect to a horizontal plane, and the bottom surface of the guide cylinder member is the rice suction member. It intersects with the lower end suction surface in side view (claims).

JP 2009-213964 A

In the prior art, the lower end suction surface of the rice suction member is located above the bottom surface of the rice storage, and is inclined obliquely downward with respect to the horizontal plane. On the back side of rice, rice may remain without being sucked.
An object of the present invention is to provide a rice washer that can solve the problems of the prior art.

  The present invention forms a suction port at the bottom of the side wall of the rice storage, and sucks rice from the outside of the rice storage through the suction port, so that the rice at the bottom of the rice storage can be more reliably It aims at providing the rice-washing machine which enabled it to suck.

Specific means for solving the problems in the present invention are as follows.
First, a rice washing tank 2 for washing rice, a measuring device 3 for measuring and supplying rice to the rice washing tank 2, an upper hopper 4 for holding rice and supplying rice to the measuring device 3, The negative pressure means E for making the inside of the upper hopper 4 negative, the rice storage 5 located under the rice washing tank 2 for storing rice, and the rice in the rice storage 5 by the negative pressure inside the upper hopper 4 A rice washing machine equipped with rice conveying means F for sucking and conveying the hopper to the upper hopper 4,
The rice conveying means F has a suction port 5a for taking out rice formed in the lowermost part of the side wall 5B of the rice storage 5 and has a rice path 17a for sucking rice into the suction port 5a and the upper hopper 4 A rice suction member 17 communicated is connected, and an air passage 17b is formed adjacent to the rice passage 17a of the rice suction member 17 to suck air from outside the rice storage 5 and generate a negative pressure in the rice passage 17a. It is characterized by.

Secondly, the rice suction member 17 is attached to the outer side surface of the rice storage 5 and the interior is divided into a rice path 17a and an air path 17b from the end connected to the suction port 5a to the middle of the interior. A separation wall 18 is provided.
Thirdly, the rice suction member 17 is separated into a lower rice path 17a and an upper air path 17b by a separation wall 18, and a conduction path member 19 is provided on the inner surface of the back wall of the rice storage 5 with upper and lower ends. Is formed outside, and the lower end of the air passage 19a is communicated with the air passage 17b of the rice suction member 17.

According to the present invention, a suction port is formed in the lowermost portion of the side wall of the rice storage, and the rice at the bottom of the rice storage is further removed by sucking rice from the outside of the rice storage through the suction port. It can be surely sucked.
That is, in the invention according to claim 1, the rice suction member 17 is connected to the suction port 5a formed in the lowermost part of the side wall 5B of the rice storage 5, and the rice path communicating with the suction port 5a is connected to the rice suction member 17 17a and an air passage 17b that sucks air from the outside of the rice storage 5 and generates a negative pressure in the rice passage 17a is formed, so that the rice in the rice storage 5 can be reliably supplied from the outside of the rice storage 5 Can suck.

Since the invention which concerns on Claim 2 provides the separation wall 18 in the inside of the rice suction member 17 attached to the outer side surface of the rice storage 5, and separates and forms the rice path 17a and the air path 17b, The suction passage and the air flow passage can be formed easily and easily, and the internal capacity of the rice storage 5 is not reduced by the rice suction member 17.
In the invention according to claim 3, the inside of the rice suction member 17 is vertically separated, and the conduction path member 19 is provided on the back wall inner surface of the rice storage 5 to form the air conduction path 19 a communicating with the air path 17 b. The rice suction member 17 can be made compact and the air can flow smoothly.

It is a schematic explanatory drawing of the rice washing machine which shows embodiment of this invention. It is the same sectional side view. It is a cross-sectional side view of the bottom part of rice storage. It is a cross-sectional front view of a rice storage warehouse bottom. It is a perspective view of the rice suction member of a rice storage. It is a cross-sectional front view of the upper part of a rice washing machine. It is a section front view of an upper hopper. It is the XX sectional view taken on the line of FIG. It is a disassembled perspective view of an upper hopper. It is a perspective view of a lid. It is a top view of the upper hopper which removed the cover. It is a side view of an upper hopper. It is a front view of a rice washing machine. It is a perspective view of a rice washing machine. It is a cross-sectional front view which shows the modification of an upper hopper.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1, 2, 13, and 14, reference numeral 1 denotes an entire commercial rice washing machine. The rice washing machine 1 has an upper hopper 4 having a measuring device 3 disposed above the rice washing tank 2, and below the rice washing tank 2. The rice storage 5 is disposed in the upper hopper 4, and the negative pressure means E for making the inside negative pressure is connected to the upper hopper 4, and the rice (wheat flour) in the rice storage 5 is interposed between the rice storage 5 and the upper hopper 4. Rice transport means F for sucking and transporting the cereals) to the upper hopper 4, and the rice washing tank 2, the upper hopper 4 and the rice storage 5 are supported by the machine frame 8, and the upper side of the rice storage 5 A rice container Y capable of storing rice such as a rice cooker, an inner pot or other containers can be placed on the mounting table 9.

The rice washing machine 1 can be recognized as a rice cooker by placing a rice cooker as a rice container Y on the placing table 9, and by placing a container other than the rice cooker, rice, wheat, soybeans, etc. It can also be recognized as a device for washing grains and a device for conveying and weighing.
The upper hopper 4, the rice storage 5, the negative pressure means E, the rice conveying means F, the machine frame 8 and the like constitute a rice conveying mechanism for sucking and conveying rice for washing and weighing.

The machine frame 8 is formed of a single column-shaped column, the lower part is fixed to the back surface of the rice storage 5, and the upper part fixes a support frame 26 that supports the rice washing tank 2, the upper hopper 4, and the like. The machine casing 8 may be constituted by two right and left columns.
As shown in FIGS. 6, 13, and 14, the machine frame 8 includes a position setting unit 36 and a container detection unit 37 between the rice washing tank 2 and the rice storage 5. The position setting means 36 is for placing the rice container Y placed on the placing table 9 directly below the rice washing tank 2, and appropriately sets the front and rear positions thereof according to the size of the rice container Y. The container detection means 37 detects whether the rice container Y is mounted on the mounting table 9.

  2 and 6, the rice washing tank 2 includes a lower tank 2A having a cylindrical portion and a lower funnel portion, and an upper tank 2B having a cylindrical portion and an upper ceiling portion. It is fixed to the support frame 26 of the machine frame 8, and the cylindrical portion of the lower tank 2A is detachably attached to the cylindrical portion of the upper tank 2B via a fastener 2C so that there is no water leak, air leak, etc. Furthermore, it has a sealed structure.

The lower tank 2A has a rice drain opening at the bottom lower end of the funnel portion, which is closed by a rice drain valve 30 exemplified by a conical valve, and can be opened by lowering the rice drain valve 30. It has become.
A rotating shaft 31 having a vertical cylindrical shaft shape is disposed at the center of the rice washing tank 2, and an upper portion thereof is supported by a ceiling portion of the upper tank 2 </ b> B via a bearing, and includes a motor and a winding transmission body. It is rotationally driven by. A plurality of stirring rods 32 are provided radially on the rotating shaft 31, and the rice in the rice washing tank 2 is evenly stirred to effectively wash (polished rice).

  A valve rod 33 with a rice drain valve 30 attached to the lower end thereof is inserted into the hollow portion of the rotary shaft 31, and the upper portion of the valve rod 33 protruding upward from the ceiling portion of the upper tank 2B is provided with a cam, a link, a motor or the like The lifting / lowering means is connected, and the lifting / lowering means moves the rice removal valve 30 up and down to open and close the rice removal opening. A drive mechanism 34 of the rice washing tank 2 is constituted by the rotating means of the rotating shaft 31 and the lifting means of the valve rod 33 and is disposed on the support frame 26.

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.
1 to 5, 13, and 14, the placing table 9 on the upper side of the rice storage 5 is formed of a plate material having a horizontal flat surface, and handles 9 </ b> A are provided on both sides thereof. 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 storage 5 has side walls 5B on the front, rear, left and right sides, the bottom is inclined downward from the front and left and right to the bottom 5A, and the lower half of the surrounding side wall 5B forming the bottom is formed in a funnel shape. A square box-shaped storage case 21 is formed by providing a peripheral wall and a bottom wall so as to cover the lower half of the rice storage 5. The rice storage 5 and the storage case 21 are fixed to the lower part of the machine casing 8.
At the bottom of the side wall 5B (back wall) of the rice storage 5 is formed a suction port 5a for taking out rice reaching the bottom 5A, and an air port 5b for taking in air is formed above the suction port 5a. A vertically long conducting path member 19 having a U-shaped cross section is attached to the inner surface of the wall from the upper half of the suction port 5a to the air port 5b.

This conduction path member 19 forms an air conduction path 19a between the back wall of the rice storage 5 and the lower end of the air conduction path 19a is open to the upper half of the suction port 5a, and the upper end has many small holes. Is communicated with the air port 5b formed by the above and opened to the outside.
A rice suction member 17 communicating with the suction port 5a is provided at the lower portion of the back (outer side) of the back wall of the rice storage 5 and this rice suction member 17 is stored in the rice storage through the lower half of the suction port 5a. 5 communicates with the air conduction path 19a through the upper half of the suction port 5a.

As shown in FIG. 3, the rice suction member 17 is substantially L-shaped in side view, the upper part is connected to the rice conveying means F, the lower part is formed with a separation wall 18 inside, and the inside is vertically separated to separate the lower side. The rice path 17a and the upper air path 17b are separately formed.
The separation wall 18 of the rice suction member 17 is formed in a horizontal shape from the lower opening end to the middle part in the vicinity of the corner portion. At the corner portion at the end of the separation wall 18, the rice passage 17a joins the air passage 17b. And it is connected to the rice conveying means F.

The lower rice path 17a of the rice suction member 17 is connected to the lower half of the suction port 5a so that rice in the storage 5 can be taken out, and the upper air path 17b is adjacent to the upper side of the rice path 17a. The upper half of the suction port 5a and the lower end opening of the air conduction path 19a are connected in communication, and air outside the rice storage 5 can be sucked from the upper end opening of the air conduction path 19a and the air port 5b.
When the upper hopper 4 is set to a negative pressure, the air path 17b and the air conduction path 19a of the rice suction member 17 are set to a negative pressure via the rice conveying means F, and the air outside the rice storage 5 is sucked, the air flow is air. It flows to the rice transport means F side through the path 17b, and the air in the rice path 17a and the suction port 5a also flows due to the ejector effect, and sucks the rice in the rice storage box 5.

When the air in the rice suction member 17 is sucked by the negative pressure of the upper hopper 4, the air in the rice path 17 a and the rice storage 5 is also sucked, and the suction force is also a force for taking out the rice in the rice storage 5.
As described above, when the vertically long conductive path member 19 is provided on the inner surface of the back wall of the rice storage 5 to form the air conductive path 19a, the lower wall of the conductive path member 19 is located on the extension of the separation wall 18 and is stored. The inside of the rice box 5, the rice path 17a, the air conduction path 19a and the air path 17b are clearly separated in a long range, and the flow of air and rice can be made smooth.

The rice suction member 17 is provided on the outer surface of the back wall of the rice storage 5, but the suction port 5 a is formed at the lowermost part of the side wall of the rice storage 5 so that the rice suction member 17 is attached to the rice storage 5. You may provide in a side wall outer surface (outer surface).
In the rice suction member 17, the separation wall 18 is formed in the middle of the upper and lower sides, but this is formed in the middle of the left and right, and the inside is separated into the left and right sides of the rice path 17a and the air path 17b, and the lower end opening of the air conduction path 19a May be adjacent to the left and right sides of the suction port 5a.

Moreover, although the upper end opening of the air conduction path 19a and the air port 5b are opened in the rectangular cylinder-shaped machine casing 8, they may be opened outside the machine casing 8.
1 to 3 and 6 to 13, the rice conveying means F is formed of a synthetic resin pipe or hose, the lower end is detachably connected to the upper end of the rice suction member 17, and the upper end is a lid of the upper hopper 4. 7 is detachably connected.

The upper hopper 4 has a hopper body 6 having a lower supply port 6a connected to the measuring instrument 3, and a lid body 7 that is hermetically fitted to the upper portion of the hopper body 6. The hopper body 6 and the lid body 7 are both Although it can be made of metal, it is made of synthetic resin.
Both the hopper body 6 and the lid body 7 have flange portions 6C and 7C on the mating surfaces. By fastening the flange portions 6C and 7C with a plurality of fasteners 13, the lid body 7 is attached to the hopper body 6. It is detachably attached. The lower part of the hopper body 6 is fixed to the upper part of the measuring instrument 3, and the lower part of the measuring instrument 3 is attached to the upper surface of the ceiling part of the upper tank 2B.

9 to 12 and 15, the fastener 13 includes a retainer spring-type retainer 13 </ b> A and a screwed screw retainer 13 </ b> B. The holding fastener 13A is pivotally supported by the hopper body 6 at both ends of a spring member 13a having a substantially U shape in a side view and a substantially L shape in a front view, and a midway portion of the spring member 13a serves as an engaging portion 13b of the lid body 7. It is configured to engage and disengage freely.
The screw fastener 13B is provided with a female screw portion 13c on the hopper body 6, a projection 13d is provided on the lid body 7, and a screw 13e inserted into the projection 13d is screwed into the female screw portion 13c. The body 7 is configured to be fastened.

  2 and 6-12, the hopper body 6 has a funnel-shaped bottom wall 6A having a supply port 6a formed at the lower end, and a peripheral wall 6B rising from the bottom wall 6A and having an upper opening 6b formed at the upper end. And the flange part 6C is formed in the upper end of the surrounding wall 6B, and many vertical ribs 6D are formed from this flange part 6C to the lower part of the surrounding wall 6B and the bottom wall 6A. The rib 6D may also be provided in the lateral direction.

The supply port 6a has a substantially rectangular shape in plan view that is long in the front-rear direction, and the upper opening 6b has a substantially rectangular shape in plan view that is substantially similar to the supply port 6a.
The supply port 6a of the bottom wall 6A is arranged in such a manner that the center in the width direction (left-right direction) orthogonal to the drum axis P of the drum 15 of the measuring instrument 3 is arranged substantially parallel to the upper side of the peripheral wall 6B. In the opening 6b, the center M in the width direction perpendicular to the drum axis P is displaced from the position directly above the drum axis P by the dimension T (shown in FIG. 7) on the leading side of the opening 15a of the drum 15.

That is, the inner space of the peripheral wall 6B having a substantially rectangular shape in plan view is shifted in the width direction center M from the position directly above the drum axis P by the dimension T to the leading side of the opening 15a of the drum 15, and the bottom wall 6A has the drum 15 The opening 15a leading side is formed with a gentle slope and longer than the opposite side.
The measuring device 3 is a hollow drum type in which the drum 15 is rotated in one direction by driving means having a motor and transmission means. The drum 15 has a constant rice storage amount (for example, 5 go), the opening 15a is a helical cutout, and the opening 15a faces the supply port 6a so that rice enters and is rotated by approximately half a turn. When 15a goes downward, the rice is dropped and supplied to the rice washing tank 2.

When the drum 15 rotates clockwise in FIGS. 6 and 7, the opening 15 a starts to communicate from the left end of one end of the supply port 6 a of the hopper body 6, and the rice in the hopper body 6 has the left side of the drum axis P on the right side. It will fall earlier.
Since the upper opening 6b is deviated by a dimension T from the position directly above the drum axis P toward the opening 15a of the drum 15, the internal space of the upper hopper 4 is located above the drum axis P from the drum 15. The capacity W1 on the leading side of the opening 15a is set to be larger than the capacity W2 on the opposite side, and the amount of rice on the side on which the rice falls first is large, so that it is retained (accumulated storage) in the upper hopper 4. The reduction of rice is maximum near directly above the drum axis P, and the way of reduction is not uneven on the left and right sides, and the left and right sides are almost uniform as much as possible, and the flow of rice is improved.

In addition, the upper hopper 4 has an asymmetrical shape so that the portion of the rice held directly above the drum axis P is recessed due to the decrease, that is, the rice flows down evenly on the left and right. It has become.
The center M in the width direction of the peripheral wall 6B is substantially at the center between the drum axis P and the side edge on the leading side of the opening 15a, and the dimension T is approximately 10 to 30% of the lateral width of the supply port 6a. % Is preferred.

Since the decrease of the rice is maximized at a position almost directly above the drum axis P, the lid 7 has a rice insertion port 7a communicating with the rice conveying means F so that the rice can be introduced into the position. It is formed almost directly above.
In FIG. 1, the side view of the upper hopper 4 and the measuring instrument 3 is indicated by a solid line, and the front view is indicated by a two-dot chain line. The left side is wider than the right side.

1, 2 and 7 to 11, the space in the upper hopper 4 surrounded by the hopper body 6 and the lid body 7 is cut longitudinally by a filter 10 and divided into front and rear, and the rice storage space S of the front main part. Two chambers of the air discharge space K of the rear local part are formed.
That is, the internal space of the upper hopper 4 is partitioned from the bottom to the top by a large-area filter 10 that cuts vertically, and a central rice storage space S that holds rice and an air discharge space outside the horizontal direction that discharges air. K is formed.

The filter 10 is formed of a punching metal or a net, is a flat plate shape or a circular arc plate shape in a plan view arc shape, and is a plate shape having straight left and right side edges, and a groove-shaped mounting portion formed in the hopper body 6 11 is detachably mounted from above.
The mounting portion 11 is formed from the bottom wall 6A of the hopper body 6 to the inner surface of the peripheral wall 6B, and the filter 10 is disposed so as to protrude upward from the bottom wall 6A of the hopper body 6 beyond the upper opening 6b of the peripheral wall 6B.

  A shielding part 12 is formed on the lid 7 so as to protrude downward from the ceiling so as to face the mounting part 11. The shielding portion 12 is formed in the same groove shape or wall shape as the mounting portion 11, and is fitted or abutted on the filter 10 mounted on the mounting portion 11 from above so as to block the upper portion of the filter 10. It has become. The shielding portion 12 and the mounting portion 11 support the filter 10 and restrict the flow of rice from the rice storage space S to the air discharge space K.

  The space in the upper hopper 4 is formed not only in the hopper body 6 but also in the lid body 7, so that the filter 10 is mounted on the mounting portion 11 and divides the hopper body 6 into two horizontal chambers from the bottom to the top. The lid 7 is fitted or brought into contact with the shielding portion 12 to partition the inside of the lid 7 into two horizontal chambers from the lower part to the inner surface of the upper wall, and the rear side of the rice storage space S is vertically cut across the entire surface. It is partitioned from the discharge space K, and a large air suction passage by negative pressure is formed.

An air suction port 6c for communicating the air discharge space K with the negative pressure means E is formed at the rear lower part of the hopper body 6, and a rice insertion port for communicating the rice storage space S with the rice transport means F is formed in the lid 7. 7a is formed.
1, 2 and 6 to 12, the lid body 7 has a dome shape in which the ceiling portion 7A bulges upward as a whole, and a dent 7B on the upper surface is formed on the portion of the ceiling portion 7A where the rice conveying means F is disposed. The flange portion 7C is formed on the peripheral edge, and a large number of vertical and horizontal ribs 7D are formed on the inner surface of the ceiling portion 7A.

  The lid body 7 has a structure that can withstand external pressure even when the inside of the upper hopper 4 is negatively formed by making the ceiling portion 7A bulge upward and forming ribs 7D on the inner surface. By forming the recess 7B, all of the rice conveying means F including the rice supply mouthpiece 20 can be embedded at least in the lower half. Even if the rice conveying means F is arranged above the ceiling portion 7A, the rice washer 1 The height of the top is suppressed from increasing.

The lid 7 has a recess 7B formed continuously from the rice insertion port 7a, one end of the rice supply mouth 20 formed in an elbow having a substantially L shape in side view is inserted into the rice insertion port 7a, and the other end is recessed 7B. It is arranged in an embedded manner inside.
The rice conveying means F includes the rice supply port 20 attached to the rice insertion port 7a, a straight member F1 such as a pipe or a hose connected at one end to the rice supply port 20, and the other end of the straight member F1. And the hose F3 for connecting the elbow F2 and the rice suction member 17 to each other. The lower half of the linear member F1 is also embedded in the recess 7B.

The rice supply mouthpiece 20 has a lower end at one end protruding from the top of the lid 7 into the rice storage space S. A full sensor 27 that detects the full amount of rice that is put into the rice storage space S is provided in a projecting downward direction at the bottom of the rice supply tool 20.
The full sensor 27 is formed of a photoelectric tube or the like having a projector and a light receiver, protrudes from the ceiling inner surface of the lid 7 into the rice storage space S and is arranged at the top of the rice storage space S, and the rice is on the ceiling of the lid 7. When it accumulates near the inner surface and closes the mouth of the rice supply mouthpiece 20, light is blocked by the rice and detected. A groove 28 having no cylindrical wall is formed between the projector and the light receiver. Even if the light projector and the light receiver are buried in the rice, the rice and air can be introduced into the rice storage space S until the groove 28 is filled.

The full sensor 27 and the rice supply mouthpiece 20 are arranged almost directly above the drum axis P of the measuring instrument 3, and the rice flows out of the storage space S when the rice is supplied to the measuring instrument 3. When rice is introduced into the outflow center from above and the rice introduced from the rice supply mouth 20 is piled up, the rice near the top of the mountain is detected by the full sensor 27.
1-4 and 11, the negative pressure means E has a blower 22, an exhaust guide member 23, and a negative pressure pipe or hose 24. The blower 22 is disposed in a storage case 21 provided in the lower part of the machine casing 8 and is connected to the air suction port 6c of the upper hopper 4 through a negative pressure pipe or a hose 24 inserted into the hollow machine casing 8. The exhaust guide member 23 guides the exhaust from the blower 22 to the outside of the storage case 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 storage case 21. A blower 22 is disposed in the lower left space.
Since the air suction port 6c of the upper hopper 4 is a hole penetrating in the vertical direction, the upper hopper 4 is a vertical type and can be easily and inexpensively formed, and the negative pressure pipe or hose 24 can be easily connected.

  In the rice transfer operation to the rice washing tank 2 in the rice washing machine 1, when the blower 22 of the negative pressure means E is operated to exhaust the air, the air in the upper hopper 4 passes through the negative pressure pipe or hose 24 and the air suction port 6c. The air in the discharge space K is discharged, the inside of the rice storage space S is made negative, and the air is stored via the rice supply port 20, the rice transport means F, the rice suction member 17 and the air conduction path 19a. It is sucked from inside the cabinet 5 and inside and outside the machine casing 8.

When the air flows from the air conduction path 19a into the air path 17b of the rice suction member 17, and is sucked from the rice storage 5 through the suction port 5a and the rice path 17a, the inside of the rice storage 5 Rice is sucked from the suction port 5a and the rice path 17a and is carried into the upper hopper 4 through the rice conveying means F.
The rice and air conveyed by the rice conveying means F are introduced into the rice storage space S in the upper hopper 4 from the rice supply opening 20 of the lid body 7, and the rice is just above the drum axis P of the measuring instrument 3. It accumulates from the top and accumulates near the ceiling inner surface of the lid 7. When the reserved rice comes to block the rice supply opening 20, the full sensor 27 detects this and stops the operation of the blower 22.

The air transported into the upper hopper 4 by the rice transport means F passes through the filter 10 from the rice storage space S and enters the air discharge space K, passes through the air suction port 6c of the hopper body 6, and is supplied with a negative pressure pipe or hose. The air is sucked into the blower 22 through 24 and discharged toward the exhaust guide member 23.
In the operation of supplying rice from the upper hopper 4 to the rice washing tank 2, the drum 15 of the measuring device 3 is rotated once or a plurality of times to supply rice to the rice washing tank 2 while measuring the rice in the upper hopper 4. The opening 15a of the drum 15 communicates in advance from one end of the supply port 6a of the hopper body 6 and drops the suspended rice, but the storage space S has a capacity W1 on the opposite side of the opening 15a. Since the capacity is larger than the capacity W2, the reduction of the reserved rice occurs in the same manner on the left and right with the boundary directly above the drum shaft center P. Supply is made smoothly.

When the rice is reduced to near the bottom of the rice storage space S, the blower 22 is operated to put the rice into the upper hopper 4. The introduced rice is supplied from the rice supply opening 20 directly above the supply opening 6a. Immediately above the supply port 6a is the portion where the residual rice is most reduced, and the rice is deposited around that portion.
FIG. 15 shows a modification of the upper hopper 4. The upper hopper 4 has a hopper body 6 and a lid 7 made of synthetic resin, and one or a plurality of hinges 14 on one side of the lid 7. The hopper body 6 is pivotally connected to the hopper body 6 and fastened to the left and right sides by one or more fasteners 13 similar to those shown in FIG. It can be opened and closed through.

By releasing the fastener 13, the lid 7 can be opened via the hinge 14, and cleaning of the upper hopper 4, attachment / detachment of the filter 10, and cleaning can be facilitated.
In the present invention, the shape of each member and the positional relationship between the front, back, left, right, and top in the embodiment 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 arrangement of the upper hopper 4 and the measuring instrument 3 may be changed so that the front-rear direction is the left-right direction, and there is little reserved rice and / or no reserved rice in the lower part of the rice storage space S of the upper hopper 4. A sensor for detecting this may be provided so that rice is automatically supplied into the upper hopper 4.
Instead of providing the recess 7B on the upper surface and the linear member F1, the lid body 7 forms an air passage communicating with the rice insertion port 7a in the ceiling portion 7A, and connects the elbow F2 of the rice conveying means F to the air passage. It may be.

  In addition, in the rice storage 5, the vertically long conductive path member 19 that forms the air conduction path 19 a is provided on the inner surface of the back wall of the rice storage 5, but the conduction path member 19 is provided on the back surface, and the lower end opening thereof is provided. You may make it communicate with the air path 17b of the rice suction member 17 in the back side of the rice storage box 5, and you may form the air conduction path 19a connected to the exterior of the rice storage box 5 in the rice suction member 17 itself.

DESCRIPTION OF SYMBOLS 1 Rice washing machine 2 Rice washing tank 3 Measuring instrument 4 Upper hopper 5 Rice storage 5B Side wall 5a Suction port 5b Air port 6 Hopper main body 6A Bottom wall 6B Perimeter wall 6a Supply port 6b Top opening 6c Air suction port 7 Lid 7A Ceiling 7B 7a Rice insertion slot 8 Machine frame 10 Filter 11 Mounting part 12 Shielding part 13 Fastener 14 Hinges 15 Drum 15a Opening 17 Rice suction member 17a Rice path 17b Air path 18 Separating wall 19 Conducting path member 19a Air conducting path 20 Rice supply opening 27 Full sensor 28 Groove E Negative pressure means F Rice conveying means K Air discharge space M Center in the circumferential wall width direction P Drum shaft center S Rice storage space T Dimensions W1 Opening front side capacity W2 Opposite side capacity Y Rice container

Claims (3)

A rice washing tank (2) for washing rice, a meter (3) for weighing and supplying rice to this rice washing tank (2), and an upper hopper for holding rice and feeding rice to the weighing machine (3) (4), a negative pressure means (E) for making the inside of the upper hopper (4) negative, a rice storage (5) for storing rice located under the rice washing tank (2), and an upper part A rice washing machine comprising rice transfer means (F) for sucking and transferring rice in the rice storage (5) to the upper hopper (4) by negative pressure inside the hopper (4),
The rice conveying means (F) has a suction port (5a) for taking out rice formed at the lowermost part of the side wall (5B) of the rice storage (5), and rice that sucks rice into this suction port (5a). A rice suction member (17) having a passage (17a) and communicating with the upper hopper (4) is connected, and the rice storage (5) is adjacent to the rice passage (17a) of the rice suction member (17). A rice washing machine characterized by forming an air passage (17b) for sucking air from outside and generating a negative pressure in the rice passage (17a).   The rice suction member (17) is attached to the outer surface of the rice storage (5), and the interior of the rice passage (17a) and the air passage (17b) extends from the end connected to the suction port (5a) to the middle of the interior. The rice washing machine according to claim 1, further comprising a separation wall (18) that is separated from each other.   The rice suction member (17) is vertically separated into a lower rice path (17a) and an upper air path (17b) by a separation wall (18), and a conduction path member is formed on the inner surface of the back wall of the rice storage (5). (19) is provided to form an air conduction path (19a) whose upper and lower ends are open to the outside, and the lower end of the air conduction path (19a) is communicated with the air path (17b) of the rice suction member (17). The rice washing machine according to claim 2, wherein:

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