JP5791916B2 - Fixed quantity feeder for rice milling machine - Google Patents

Description

The present invention relates to thrown into the hopper of the rice mill brown rice dispensing apparatus to pass before rice milling to a pearling device. More specifically, the present invention relates to a technique for preventing biting of a foreign object when a feeding blade rotates in a room of a quantitative supply device.

  In the rice milling machine, rice milling begins with an initial rice milling process that starts from an empty state where brown rice does not exist in the milling machine, followed by continuous rice milling, and when no new brown rice is supplied to the milling machine. Three processes of “finished rice milling” are basically performed.

  In the “continuous milling” process, brown rice is continuously fed into the milling chamber for the amount of milled rice and white rice discharged from the milling chamber, so that the milling chamber is filled with brown rice and kept at a constant pressure. Rice milling is done with the degree of milling. On the other hand, in the processes of “early milled rice” and “finished milled rice”, the supply state of brown rice is different from the process of “continuous milled rice”. Insufficient milling. Therefore, in order to perform milling at the same degree of milling as in the “continuous milling” process, a technique for performing a special process in the “initial milling” and “finished milling” processes is disclosed (Patent Document 1). ).

  In this technology, a quantitative feature is that a quantitative supply device is installed in front of the semen chamber. In addition, in the previous two processes, the continuous supply of brown rice to the milling room is stopped and milled, and the amount of brown rice discharged from the milling room is reduced and reduced as needed. Is used to fill the milling chamber with brown rice and polish the rice for a predetermined time. As a result, rice milling is performed at the same degree of milling as in the “continuous milling” process.

  As shown in FIG. 7 (a), the fixed-quantity supply device 12 takes in brown rice from an inlet 52a provided in the upper part of a cylindrical case 51, and a feeding shaft 54 arranged at the center of the case 51 is a feeding motor (not shown). By rotating, a plurality of feeding blades 57 projecting radially from the feeding shaft 54 are rotated. The tip of the feeding blade 57 is provided close to the inner peripheral surface of the case 51, and the gap is a small interval narrower than one grain of rice. Therefore, the fixed accommodation space 59 is formed by the two adjacent feeding blades 57 and 57 and the inner peripheral surface of the case 51. Then, by rotating the feeding motor in one direction, storage spaces 59 are formed one after another, and brown rice is quantitatively stored in the storage space 59. Then, by controlling the angle at which the feeding motor is rotated, a certain amount of brown rice is led to the outlet 52b provided at the lower part of the case 51 at a certain time and supplied to the scouring chamber 31 of the scouring apparatus 13. Yes.

JP 2008-80202 A

  By the way, the harvested rice cake is finished into brown rice through a selection / adjustment process of “drying → rice hulling → rice selection”. In these processes, sorting is repeatedly performed, and other foreign substances are sorted and removed every time a process is performed, together with sorting of rice husks and waste rice.

  Furthermore, in recent years, farmers who are producers have come to sort and remove pebbles (stone waste) mixed in brown rice with a stone remover.

  Therefore, foreign matter is mixed into the brown rice put into the rice mill is less than before. However, brown rice may contain wood pieces (twigs) or nuts or seeds. Since these foreign substances are elongated or flat, they are not easily removed by the above-described sorting, and the specific gravity is lighter than that of brown rice, and therefore cannot be sorted even by a stone remover that applies the principle of specific gravity sorting.

  In addition, when storing self-consumed rice, hawk claws, garlic, and the like may be mixed into the brown rice in order to protect it from pests parasitic on the brown rice.

  As shown in FIG. 7 (b), when such foreign matter A is mixed in the brown rice, when passing through the quantitative supply device 12, as shown in FIG. The foreign matter A is caught between the tip of the steel and the inner peripheral surface of the case 51, and in some cases, the rotation of the feeding blade 57 is stopped and the rice milling process is interrupted.

  Among the rice milling machines, in particular, in the case of a coin rice milling machine, foreign matter for insect control is often mixed in the brown rice compared to the case of a large rice milling machine, and the above-mentioned problems are likely to occur.

  Therefore, it is desired to improve the quantitative supply device so that the rice milling process can be continued even if foreign matter is mixed.

The following first to third improvements are listed as improvements that can be immediately conceived.
The first improvement is a method of avoiding stopping of rotation of the feeding blade due to the biting when the foreign material is caught between the feeding blade and the case and the feeding blade is bent and deformed with the rotation of the motor. .

  In this case, even if the biting can be prevented, if the feeding blade is bent and deformed, the volume of the accommodation space formed by the two feeding blades adjacent to each other and the inner peripheral surface of the case is changed from the previous state. . Therefore, even if the angle at which the motor is rotated is controlled, it is impossible to supply a certain amount of brown rice. Therefore, the degree of whitening becomes unstable.

  The second improvement is a method of crushing the bitten foreign matter and taking it into the semen chamber. In other words, a large motor having a large torque is employed so that the feeding blade is given strength so that it does not deform even if a foreign object is caught, and the feeding blade is forcibly rotated while the foreign object is caught.

  However, a significant increase in manufacturing cost is inevitable due to an increase in the size of the motor and an increase in the amount of material used for the feeding blades.

  The third improvement is a method in which the feeding blade is made of a flexible rubber, a resin-based material, or an elastic material such as a spring steel plate. In this case, even if a foreign object is caught, the rotation of the motor is continued while the feeding blade is bent like a bow, and the feeding blade should be restored to its original shape over time, so there seems to be no problem.

  However, the feeding blades extend radially from the feeding shaft and originally have a shape that is difficult to bend. Further, the biting usually occurs at one place along the entire length of the tip of the feeding blade. Nevertheless, in order to bend the tip of the feeding blade over its entire length, the thickness of the feeding blade must be appropriately designed in relation to the material, and the design is very difficult. If the design is incorrect, there is a risk that deformation and loss will occur even with a spring steel plate. In particular, in the case of a rubber or resin-based material, the material itself tends to become brittle due to deterioration over time, and there is a risk of loss. If it is deficient, it will be mixed into brown rice, which will be a problem in the quality of the polished rice.

  The present invention was created in consideration of the above circumstances, and while maintaining the function of supplying a fixed amount of brown rice, which is the original role of the quantitative supply device, even if foreign matter is mixed in the brown rice, The purpose is to be able to continue the milling process. In addition, it is desirable that the product design is easy and the manufacturing cost is kept as low as possible.

The present invention is a fixed quantity supply device for a rice milling machine installed before sending rice to a milling apparatus, and the entrance and exit of brown rice are provided at the upper and lower parts , which are opposite positions in the circumferential direction of a cylinder closed at both ends. A case having a case, a feed shaft that is disposed in the center of the case and is rotatably supported, a plurality of feed blades that are fixed to the feed shaft at intervals in the outer circumferential direction, and a feed shaft The narrowest gap formed by the tip of each feeding blade projecting from the feeding shaft toward the inner peripheral surface of the case and the inner peripheral surface of the case is a small interval narrower than one grain of rice. And a fixed quantity supply device for a rice mill that forms a fixed amount of accommodation space between two adjacent feeding blades and the inner peripheral surface of the case.

In the first aspect of the present invention, the feeding blade is made of a metal leaf spring, and includes a fixing portion that is fixed to the feeding shaft, and a blade body that protrudes from the fixing portion toward the inner peripheral surface of the case. The blade main body portion includes a curved R portion at least in part of a protruding length that protrudes from the fixed portion toward the inner peripheral surface of the case when viewed from the extension line direction of the feeding shaft.

The R portion of the blade main body may be provided in any range of the protruding length that protrudes from the fixed portion toward the inner peripheral surface of the case, or may be provided over the entire protruding length. In order to reduce the ease of design and manufacturing costs, the following is desirable. That is, as in the second aspect of the present invention , the blade main body portion has a curved R portion that continuously curves to the fixed portion, and a straight line that extends from the tip of the R portion toward the tangential direction of the R portion. Is to provide a part.

In addition, the blade main body portion may have the above-described slit as long as it has an R portion. However, in order to make the tip of the blade body easier to bend, it is desirable to do the following. That is, as in the third aspect of the present invention , the blade main body portion has a slit with the small interval as an opening width in the middle of the entire blade width extending in the axial direction of the feeding shaft. It extends from the tip approaching the surface toward the fixed part.

According to the present invention, since the feeding blade is made of a metal leaf spring, it is deformed when a foreign object is bitten and then restored. And since the opening width of the slit, which is the blade main body part of the feeding blade and formed at the tip approaching the inner peripheral surface of the case, is narrower than a single grain of rice, the original role of the metering feeder The function of supplying a constant amount of brown rice can be maintained. And since it is metal, compared with resin etc., there is hardly any possibility of deterioration over time, and therefore there is no risk of breakage, and a situation where a part of the feeding blade is mixed into the milled rice can be avoided .

Further, according to the present invention, the feeding blade is a metal leaf spring, and the blade main body portion has a curved R at least part of the protruding length protruding from the fixed portion toward the inner peripheral surface of the case. Since the blade body is provided, the blade body portion is more easily bent, the design of the feeding blade is easy, and the manufacturing cost can be reduced.

Moreover, according to the 2nd aspect of this invention, let a blade | wing main body part be a shape provided with R part by the side of a fixing | fixed part, and the linear part by the front end side of R part, and the location which provides R part is made into the intermediate part of a blade | wing main body part. This makes it easier to design and reduces manufacturing costs.

Moreover, according to the third aspect of the present invention, since the slit is provided at the tip approaching the inner peripheral surface of the case for the blade main body, while maintaining the function of supplying a fixed amount, It is easy to bend, is easy to design, and manufacturing cost can be reduced.

It is a disassembled perspective view which shows the fixed_quantity | feed_rate supply apparatus with which 1st Embodiment of the delivery blade | wing was used. (A) (B) is a schematic sectional view seen from the front direction showing a case where the first embodiment of the feeding blade is bent when a foreign object is bitten. (A) (B) The figure is a schematic cross-sectional view seen from the front direction showing the use state of the fixed- quantity supply apparatus in which the second embodiment of the feeding blade is used, and a front view showing the second embodiment. It is a disassembled perspective view which shows the fixed_quantity | feed_rate supply apparatus with which the control board was used. It is a schematic cross-sectional view seen from the front showing a state of use of the dispensing device regulating plate is found using. It is explanatory drawing which shows the basic composition of a rice mill. (A), (b) is an explanatory view showing the state of use of a conventional quantitative supply device.

  FIG. 6 shows the basic configuration of a rice mill. In the rice milling machine, a quantitative supply device 12 and a milling device 13 are sequentially provided under a hopper 11 that stores brown rice.

The basic configuration of the scouring apparatus 13 is as follows.
The milling device 13 is provided with a cylindrical milling chamber 31 continuously in a horizontal direction under the fixed amount supply device 12. In the illustrated example, the milling chamber 31 is formed so as to be inclined so that the tip portion is lowered, and a brown rice supply port 32 is provided at the upper portion of the cylindrical periphery. On the front side slightly away from the supply port 32, the peripheral wall of the sperm chamber 31 is formed by a wire net-shaped debris muffler 33. A resistance plate 35 is openably and closably provided at the discharge port 34 of the sperm chamber 31 which is the tip opening end of the hair removal screen 33. The resistance plate 35 is supported by one end portion of the resistance arm 36, and an intermediate portion of the resistance arm 36 is supported so as to be swingable. Then, by pressing the other end portion of the resistance arm 36 in one direction, the resistance plate 35 causes the discharge port 34 of the semen chamber 31 to move. Further, by adjusting the pressing force, the force for closing the discharge port 34 of the semen chamber 31 by the resistance plate 35 is changed.

  A roll body portion 42 of the sperm roll 41 is accommodated inside the sperm chamber 31, and the roll shaft portion 43 of the sperm roll 41 is rotatably supported outside the sperm chamber 31. In addition, a sperm motor 44 that rotates the sperm roll 41 is provided outside the sperm chamber 31 so as to be connected to the sperm roll 41. On the other hand, the roll body 42 of the fine roll 41 is composed of a feed part 42a on the roll shaft part 43 side and a fine part 42b on the front part side. The sending part 42 a is formed in a screw shape to send out the brown rice, and the milling part 42 b has a shape close to the dehulling net 33.

  In the above-described milling apparatus 13, when the milling roll 41 is rotated by the milling motor 44, the brown rice is fed forward while rubbing the brown rice while the brown rice is taken in, and the milling is scraped off in the process. The discharge port 34 of the semen chamber 31 is elastically blocked by a resistance plate 35, and the closing pressure is set based on a command issued from a control device (not shown). When discharged from the discharge port 34 against the closing pressure of the resistance plate 35, the milled rice has a desired milling degree. Further, the soot generated in the whitening process is sucked together with air by a collecting fan (not shown), and the soot is collected.

The fixed quantity supply device 12 supplies the brown rice to the above-described milling device 13. FIGS. 1 and 2 show the fixed amount supply device 12 in which the first embodiment of the feeding blade 57 is used. The basic configuration of the quantitative supply device 12 has been described in the background art section, but will be described in more detail using the same terms and symbols.

  The fixed amount supply device 12 includes a case 51 that allows brown rice to pass therethrough. The case 51 mainly includes a case main body 52 formed of a horizontal cylinder with both ends closed. The case main body 52 has a brown rice entrance 52a and an exit 52b at the upper and lower portions which are opposite locations in the circumferential direction. Inlet and outlet guide portions 53a and 53b for guiding the brown rice to the inlet 52a and the outlet 52b are provided so as to protrude above and below the case main body 52 in a cylindrical shape.

  Further, a feeding shaft 54 is disposed in the center of the case main body 52 in parallel with the direction in which the cylinder of the case main body 52 extends. In addition, outside the case main body 52, the feeding shaft 54 is rotatably supported and connected to a feeding motor 55 that rotates the feeding shaft 54. On the other hand, in the case main body 52, a mounting block 56 is inserted and fixed to the outer periphery of the feeding shaft 54, and a plurality of feeding blades 57 are spaced from the mounting block 56 at equal intervals in the outer circumferential direction of the feeding shaft 54. Open and fixed.

  Each feeding blade 57 protrudes from the feeding shaft 54 side toward the inner peripheral surface of the case main body portion 52, and the narrowest gap 58 formed between the tip thereof and the inner peripheral surface of the case main body portion 52 is a grain of rice. (More specifically, the width of one grain of rice) is formed at a narrower interval. As a result, the rice does not pass through the gap 58, and the feeding blades 57 are provided at equal intervals in the outer circumferential direction around the feeding shaft 54, so that two adjacent feeding blades A fixed amount of accommodating space 59 is formed between the inner peripheral surface of 57 and the case main body 52. The fixed amount of brown rice stored in the storage space 59 is supplied to the brewing chamber 31 in a predetermined amount at a desired time by controlling the rotation of the feeding motor 55 by the control device.

  For example, in the case of “initial rice milling”, the angle at which the feeding motor 55 is turned is controlled to adjust the amount of brown rice sent to the milling room 31 that is initially empty. Then, the feeding motor 55 is stopped, and the fine roll 41 is rotated in a state where the discharge port 34 is completely blocked by the resistance plate 35. If the desired degree of milling is not reached in this state, the brown rice that has been reduced as a cocoon is further fed by the quantitative feeding device 12 and is milled until a predetermined milling degree is reached. Thereafter, the process shifts to “continuous rice milling”, the closing force of the resistance plate 35 is reset if necessary, and the feeding motor 55 of the fixed quantity supply device 12 is rotated. Moreover, the sensor 11a which detects brown rice is provided in the bottom part of the hopper 11, and the quantity of brown rice which can be supplied to the fixed quantity supply apparatus 12 is a predetermined amount at the moment when this sensor 11a stops detecting brown rice. I understand. Thereafter, the process proceeds to “finished rice milling”. In the “finished rice”, the resistance plate 35 is controlled as necessary in the same manner as in the “initial rice milling” while controlling the amount of brown rice supplied by the quantitative supply device 12 so that the rice milling can be continued while maintaining the degree of milling until then. The closing force is reset, the milling roll 41 is rotated, and the milled rice is terminated.

Next, the first embodiment of the feeding blade 57 will be described in detail. The feeding blade 57 is formed by processing an elastically deformable metal leaf spring, for example, a springy steel plate. The feeding blade 57 includes a fixing portion 61 that is fixed to the feeding shaft 54 via a mounting block 56, and a plurality of blade main bodies that project radially from the fixing portion 61 toward the inner peripheral surface of the case main body 52. Part 62. In the example shown in the figure, there are four blade main body portions 62, and each blade main body portion 62 is provided at every rotation angle of 90 degrees around the feeding shaft 54. Further, the two blade main body parts 62 are continuously provided while being bent on both sides of the single fixing part 61.

  The fixing portion 61 is formed in a rectangular shape in the illustrated example. This shape is a shape corresponding to the prismatic mounting block 56. The fixing portion 61 is fixed to the mounting block 56 by screwing or the like.

  A plurality of slits 63 are formed in the blade main body 62 at regular intervals over the entire length of the blade width 62W extending in the axial direction of the feeding shaft 54. In the illustrated example, two slits 63 are provided in the blade body 62. The slits 63 are provided in a radial manner in the same manner as the protruding direction of the blade main body 62. More specifically, the slits 63 extend from the tip approaching the inner peripheral surface of the case main body 52 until reaching the fixing portion 61. . Accordingly, it can be said that the blade body 62 is formed of a plurality of small blades 64. Moreover, the opening width 63W of the slit 63 is formed at a small interval narrower than one grain of rice.

  A description will be given of how the feeding blade 57 works during use of the fixed amount supply device 12 in which the first embodiment of the feeding blade 57 described above is incorporated, with reference to FIG. When the feeding motor 55 is rotated in one direction, as shown in FIG. 2 (a), the foreign matter A mixed in the brown rice is formed between the tip of the feeding blade 57 and the inner peripheral surface of the case main body 52. It is bitten in between. However, as shown in FIG. 2 (b), since the feeding blade 57 is formed of a metal leaf spring and a plurality of small blades 64, the foreign matter A is caught by the rotation of the feeding motor 55. The small blade 64 is bent and deformed, and the rotation of the feeding blade 57 is continued as it is. The foreign object A moves toward the outlet 52b of the case main body 52 while being bitten, or moves to the accommodating space 59 either before or after the small blade 64 that is bitten, and finally the outlet 52b of the case main body 52. Falls to the sperm chamber 31 of the sperm apparatus 13. Further, the deflected small blades 64 are restored to their original shape by the restoring force, and thereafter, the brown rice accommodated in the accommodation space 59 is quantified.

FIG. 3 shows the quantitative supply device 12 in which the second embodiment of the feeding blade 57 is used. As shown in FIG. 3A, the feeding blade 57 is different from that of the first embodiment in the shape of the blade body 62 viewed from the extending direction of the feeding shaft 54. The blade main body 62 has a curved R portion 62a that is joined to the fixed portion 61 when viewed from the extending direction of the feeding shaft 54, and a straight portion that extends from the R portion 62a toward the inner peripheral surface of the case main body 52. As part 62b. The R portion 62 a swells in a convex shape toward the rotation direction of the feeding blade 57. The straight portion 62b extends toward the tangential direction at the tip of the R portion 62a. Similarly, the fixed portion 61 extends toward the tangential direction at the end of the R portion 62a. The blade body 62 may be formed with the slit 63 as in the first embodiment, or may not be formed.

  Further, the feeding blade 57 is different in that the number of blade main body portions 62 continuing to the fixed portion 61 is one. Accordingly, in this case, the four feeding blades 57 are fixed to the feeding shaft 54 via the attachment block 56 by the respective fixing portions 61. Of course, all the feeding blades 57 are fixed in the same direction so that the rotation direction thereof matches the bulging direction of the R portion 62a.

  Such a feeding blade 57 rotates the feeding motor 55 when foreign matter A is caught between the tip of the feeding blade 57 and the case main body 52 during use of the fixed amount supply device 12 incorporated therein. 3B, in addition to the elasticity of the leaf spring, the curved portion of the R portion 62a causes the tip of the straight portion 62b to move toward the fixed portion 61 with a light force. The bent blade 57 moves to the accommodation space 59 either before or after the feeding blade 57 that is bent and the foreign material A is bent, and then the feeding blade 57 is restored to its original shape.

FIG. 4 is an exploded perspective view showing the quantitative supply device 12 in which the regulation plate 71 is used. FIG. 5 is a schematic cross-sectional view in the front direction of the quantitative supply device 12 in which the regulation plate 71 is used. This restricting plate 71 is also made of a metal leaf spring that can be elastically deformed, as in the first embodiment of the feeding blade 57. The restricting plate 71 is bent in a “<” shape, and one piece thereof is an attachment portion 72 attached to the inlet guide portion 53a. The inlet guide portion 53a is divided into two parts for the attachment portion 72, and is formed by an upper divided body 53a1 and a lower divided body 53a2. The attachment portion 72 is fixed to the inlet guide portion 53a by sandwiching the attachment portion 72 between the two division bodies 53a1 and 53a2 and then flange-joining both the division bodies 53a1 and 53a2.

  On the other hand, the other piece of the restricting plate 71 is a restricting plate main body portion 73 that extends linearly from the attachment portion 72 toward the rotation locus 57 a drawn by the tip of the feeding blade 57. More specifically, the restriction plate main body 73 extends toward the center of the feeding shaft 54 when viewed from the direction of the extension line of the feeding shaft 54. An interval 74 having the same width as the small interval is formed between the regulation plate main body 73 and the rotation locus 57a. In addition, a slit 75 is formed in the restriction plate main body 73 in the same manner as the blade main body 62 of the first embodiment of the feeding blade 57. That is, a plurality of the slits 75 are also formed at equal intervals over the entire length of the plate width 73W extending in the axial direction of the feeding shaft 54, and the attachment portion 72 extends from the tip on the rotation locus 57a side. It is formed until it reaches. Therefore, the restriction plate main body 73 is also formed by a plurality of small plates 76. The opening width 75W of the slit 75 is also formed to have the same width as the small interval.

  When the foreign matter A is caught between the restriction plate 71 and the leading end of the feeding blade 57 during use of the fixed amount supply device 12 in which the restriction plate 71 is incorporated, the rotation of the feeding motor 55 is continued. 5, the restricting plate 71 is bent by the elasticity of the leaf spring, and moves to the accommodation space 59 either before or after the feeding blade 57 in which the foreign matter A is caught, and then the restricting plate 71 is moved. Restore the original shape. Further, when the restricting plate 71 is bent, the small blade 64 of the feeding blade 57 is also bent, and after the foreign object A has moved, it is similarly restored.

  The present invention is not limited to the above embodiment. For example, in the above embodiment, the feeding blade 57 has the blade body portion 62 formed by a plurality of small blades 64, but the present invention is not limited thereto, and the fixing portion 61 may be formed by a plurality of small pieces. That is, in this case, the feeding blade 57 is composed of a plurality of sheets and is fixed to the feeding shaft 54 through the slit 63 over the axial length of the feeding shaft 54.

  Further, in the feeding blade 57, the portion joined to the fixing portion 61 is a curved R portion 62a, and the tip portion from the R portion 62a toward the inner peripheral surface of the case main body portion 52 is a straight portion 62b. Not limited to this, a portion joined to the fixing portion 61 may be a straight portion 62b, and a portion from the straight portion 62b toward the inner peripheral surface of the case main body 52 may be an R portion 62a.

A Foreign object 11 Hopper 11a Sensor 12 Fixed supply device 13 Sperm device 31 Sperm chamber 32 Supply port 33 Dehatcher 34 Discharge port 35 Resistance plate 36 Resistor arm 41 Sperm roll 42 Roll main body 42a Delivery unit 42b Sperm unit 43 Roll shaft unit 44 Precision motor 51 Case 52 Case body 52a Inlet 52b Outlet 53a Inlet guide 53b Outlet guide 53a1 Upper divided body 53a2 Lower divided body 54 Feeding shaft 55 Feeding motor 56 Mounting block 57 Feeding blade 57a Rotating locus 58 Clearance 59 Accommodating space 61 Fixed portion 62 Blade body portion 62W Blade width 62a R portion 62b Linear portion 63 Slit 63W Opening width 64 Small blade 71 Restriction plate 72 Mounting portion 73 Restriction plate body portion 73W Plate width 74 Spacing 75 Slit 75W Opening width 76 Small Board

Claims (3)

It is a quantitative feeder for rice milling machine installed before sending brown rice to the milling machine,
A case having an inlet and an outlet of brown rice at the upper and lower parts which are opposite positions in the circumferential direction of the cylinder whose both ends are closed, and a feeding shaft which is arranged in the center of the case and rotatably supported. Each feeding blade provided with a plurality of feeding blades fixed at intervals in the outer circumferential direction with respect to the feeding shaft, and a feeding motor that rotates the feeding shaft, and protrudes from the feeding shaft toward the inner peripheral surface of the case The narrowest gap formed by the tip of the case and the inner peripheral surface of the case is formed at a small interval narrower than a single grain of rice, and a fixed amount of accommodation space is formed by two adjacent feeding blades and the inner peripheral surface of the case In the fixed amount feeder for rice milling machines ,
The feeding blade is made of a metal leaf spring, and includes a fixing portion that is fixed to the feeding shaft, and a blade body that projects from the fixing portion toward the inner peripheral surface of the case,
The blade main body is provided with a curved R portion at least part of the protruding length protruding from the fixed portion toward the inner peripheral surface of the case when viewed from the direction of the extension line of the feeding shaft . Metering device . Blade body portion, and R portions of curved shape which is curved continuously in the fixed part, according to claim 1, characterized in that it comprises a straight portion extending toward the tip of the R portion in the tangential direction of the R portion A quantitative supply device for rice mills . The blade body part extends a slit with the small interval as the opening width in the middle of the full length of the blade width extending in the axial direction of the feeding shaft from the tip approaching the inner peripheral surface of the case toward the fixed part. The fixed-quantity supply apparatus for rice mills of Claim 1 or 2 characterized by the above-mentioned.

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