WO2017018337A1 - Grinding type vertical grain milling machine - Google Patents

Grinding type vertical grain milling machine Download PDF

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Publication number
WO2017018337A1
WO2017018337A1 PCT/JP2016/071521 JP2016071521W WO2017018337A1 WO 2017018337 A1 WO2017018337 A1 WO 2017018337A1 JP 2016071521 W JP2016071521 W JP 2016071521W WO 2017018337 A1 WO2017018337 A1 WO 2017018337A1
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Prior art keywords
grinding
whitening
chamber
grain
section
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PCT/JP2016/071521
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French (fr)
Japanese (ja)
Inventor
康義 瀬戸
史朗 但馬
康範 小池
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株式会社サタケ
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Application filed by 株式会社サタケ filed Critical 株式会社サタケ
Priority to BR112018001363-3A priority Critical patent/BR112018001363B1/en
Priority to KR1020187003781A priority patent/KR102480244B1/en
Priority to CN201680043348.6A priority patent/CN107847940A/en
Publication of WO2017018337A1 publication Critical patent/WO2017018337A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
    • B02B3/06—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of screws or worms

Definitions

  • the present invention relates to a grinding-type vertical milling machine in which a grinding-type whitening roll is mounted on a standing spindle.
  • a grinding-type vertical milling machine is equipped with a grinding-type whitening roll, which is a grindstone, on the main shaft in an upright-type removal-type metal screen cylinder.
  • the basic structure is such that one end communicates with the grain supply unit and the other end communicates with the grain discharge unit. It has characteristics such as a strong whitening effect and a simple whitening chamber, which makes it easy to treat residual grains.
  • the whitening chamber is bowl-shaped, the action of the natural fall of the grain is strong, and it is discharged without receiving a sufficient grinding action, or spots (unevenness) occur in the whitening action.
  • Various solutions have been made to solve this problem.
  • a resistor that provides resistance to the flow of rice grains in the milling chamber is provided.
  • This resistor has a tip that is close to the outer peripheral surface of the grinding-type whitening roll body, and imparts resistance to the grains that move with the rotation of the grinding-type whitening roll body, The position of the portion can be adjusted in the distance direction in the radial direction of the grinding type whitening roll body with respect to the outer peripheral surface of the grinding type whitening roll body.
  • the present invention provides a grinding-type vertical milling machine capable of stabilizing the grain receiving action and removing almost completely the wrinkles in the streak grooves on the dorsal side of the long grain rice grains. Providing what to do is a technical challenge.
  • a grinding type vertical milling machine includes a grinding type whitening roll mounted on a main shaft that is rotatably provided in a vertical stripping metal mesh cylinder, One end of the milling chamber with the grinding type milling roll as the main part is connected to the grain supply unit, and the other end is connected to the grain discharge unit, and around the stripping wire mesh cylinder, A plurality of struts and a milling chamber resistor disposed on each of the columns are provided, the milling chamber resistor is a long plate extending in the axial direction of the grinding type milling roll, and
  • the cross section is formed to be bent in a bowl shape, the base end of the cross section is rotatably supported by the support column, the tip of the cross section is close to the outer peripheral surface of the grinding whitening roll,
  • the bent part of the cross section acts on the moving grain to suppress its movement and give resistance. It is characterized in.
  • polishing chamber resistor is a long plate and has a substantially L-shaped cross section.
  • the whitening chamber is divided into a plurality of circumferential directions by the plurality of struts and the plurality of whitening chamber resistors, and a plurality of sperm sections are formed so that each has an independent sperm action.
  • the grinding type vertical milling machine in the grain discharge section at the other end of the milling chamber, a discharge opening that opens a part of the stripping wire mesh cylinder, a discharge basket connected to the discharge opening, A lid that closes the outlet, and the lid is opened only by the outflow pressure of the grain without providing a resistance device that applies a biasing force to the lid. It is formed.
  • a plurality of columns and a whitening chamber resistor disposed on each of these columns are provided around the stripping wire mesh cylinder, and the whitening chamber resistor extends in the axial direction of the grinding type whitening roll.
  • a long plate-like shape, and the cross section is bent like a bowl, the base end of the cross section is rotatably supported by the support column, and the tip of the cross section is a grinding whitening roll
  • the bent portion of the cross section acts to restrain the movement and impart resistance to the moving grain, so that the kernel is captured very easily at the bent portion. Therefore, the grain receiving action is stabilized, and the wrinkles in the streak groove on the dorsal side of the grain are sufficiently removed.
  • the whitening chamber resistor has a long plate shape and is formed in a long plate shape having a substantially L-shaped cross section, compared with a whitening chamber resistance plate having a conventional cross section that is linear.
  • the whiteness can be increased while keeping the generation rate of crushed grains low by about 2%. Furthermore, even if the whiteness is low, the wrinkles in the streak grooves on the dorsal side of the grains can be removed. Can do.
  • each sperm section has an independent sperm action. Can be performed to produce
  • the grinding type vertical milling machine in the grain discharge section at the other end of the whitening chamber, a discharge opening that opens a part of the stripping wire mesh cylinder, a discharge basket connected to the discharge opening, A lid that closes the discharge port, and the lid is formed so that the discharge port is opened only by the outflow pressure of the grain without providing a resistance device that applies a biasing force to the lid. Therefore, the conventional resistance device provided near the discharge port is not necessary, and the manufacturing cost is reduced, and even when rice grains are allowed to flow out from the lid without load, the streak on the back side of the grains The wrinkles in the groove can be almost completely removed.
  • FIG. 5 is a cross-sectional view taken along line AA of FIG. 4 showing the internal structure of the urging device. It is the graph which compared the change of the whiteness and the crushed particle with a conventional machine and an improved machine. It is the graph which compared the whiteness same as the above and the ratio with a back muscle. It is the graph which compared the integrated current same as the above, and the change of whiteness.
  • FIG. 1 is a schematic view of the overall configuration of a grinding-type vertical milling machine 1
  • FIG. 2 is a perspective view of the grinding-type vertical milling machine 1 shown partially exploded
  • FIG. FIG. 4 is a perspective view showing a roll portion
  • FIG. 4 is a cross-sectional view of a ground grain portion
  • FIG. 5 is a cross-sectional view taken along line AA of FIG. 4 showing the internal structure of the urging device.
  • a main shaft 3 is erected by an upper bearing part 4 and a lower bearing part 5 substantially at the center of a main body base 2, and a grinding type whitening roll is directly above the upper bearing part 4.
  • a plurality of 6 (hereinafter, whitening rolls 6) are placed and fixed to form a main grain portion.
  • the main shaft 3 is driven via a motor pulley 9, a main shaft pulley 10, and a V belt 11 by a motor 8 fixed to a motor base 7 attached to the main body base 2.
  • the whitening roll 6 is formed by laminating a plurality of grinding wheels 12 attached to the main shaft 3 and spacers 13 interposed between the grinding wheels 12.
  • the grinding wheel 12 has a cutting edge for grinding (abrasive grains of a grinding wheel) fixed to the entire surface by means such as sintering.
  • the spacer 13 can also be provided with a blast port 13a (see FIG. 4) for blasting from a plurality of the grindstones 12 stacked toward the cutting blade. By forming the blast port 13a, the machine 13 By using the air taken in from the outside as a fountain for removal, it is possible to promote removal at the time of semen.
  • a raw material feed roll 14 is attached to the main shaft 3 at the upper end of the whitening roll 6. Screw blades 15 are provided on the outer peripheral surface of the feed roll 14, and the raw material can be fed by rotation of the screw blades 15.
  • a stripping wire cylinder 16 (FIG. 1) is erected around the polishing roll 6 through a predetermined interval.
  • a whitening chamber 17 is formed between the stripping wire cylinder 16 and the whitening roll 6.
  • the stripping wire cylinder 16 is divided into four in a vertically split shape, and each side edge is fixed by four columns 18 erected around the polishing roll 6. Further, an arc-shaped removal chamber cover 19 is attached between the columns 18 to form a removal chamber 20.
  • symbol 21 is a support
  • the supply cylinder 22 for guiding the raw material is mounted on the support 18.
  • the supply cylinder 22 surrounds the feed roll 14, and a hopper cylinder 23 is provided above the supply cylinder 22, and an input port 24 is opened in the upper surface wall of the hopper cylinder 23.
  • a supply amount adjusting device 27 including a hollow conical guide body 25 and two perforated rotating plates rotated by an adjusting lever 26 is provided on the guide body 25.
  • a part of the metal strip 16 is opened to form a discharge port 28, and a discharge rod 29 is provided connected to the discharge port 28.
  • the discharge rod 29 is provided with a lid 31 that is operated by a weight lever 30.
  • the lid 31 is urged by the weight lever 30, but the present invention is not limited to this.
  • a configuration in which rice is allowed to flow out from the lid 31 without load without providing the weight lever 30 or the air cylinder is also conceivable.
  • the whitening chamber 17 is provided with a whitening chamber resistor 32 protruding from each of the plurality of columns 18.
  • the whitening chamber resistor 32 has a long plate shape extending in the axial direction of the grinding type whitening roll 6 and is formed so that its transverse section is bent into a bowl shape.
  • the white chamber resistor 32 shown in FIGS. 3, 4 and 5 has a substantially L-shaped cross section.
  • the whitening chamber resistance plate 32 is not limited to an L-shape, and may be a hook shape. Various shapes of "" and "U” can be employed.
  • the tip 33 thereof is close to the outer peripheral surface of the grinding whitening roll body 6.
  • the tip portion 33 at this time faces the center direction of the grinding wheel 12 (the direction of the main shaft 3) (FIGS. 4 and 5).
  • the L-shaped bent portion 34 plays a role of imparting resistance that suppresses the grains that move due to the rotation of the whitening roll 6.
  • the base end portion 35 on the other side of the tip end portion 32 is supported so as to be rotatable with respect to the vertical axis 36 built in the column 18.
  • the whitening chamber resistance plate 32 is provided with an urging device 37.
  • the urging device 37 is an air actuator and includes an air cylinder 38, a movable rod 39, and a pressure adjusting device 40 as shown in FIGS.
  • the air cylinder 38 has an attachment portion 41 at one end attached to a coupling block 42 on the pressure regulating device 40 side so as to be rotatable by a shaft 43 and the other end connected to a polishing chamber resistance plate 32 to be rotatable by a free joint structure 44. Yes.
  • the whitening chamber resistance plate 32 is rotatably supported by a vertical axis 36 whose one end is built in the support column 18, and is rotated around the vertical axis 36 by the advancement and retraction of the movable rod 39, so that the outer periphery of the grinding whitening roll body 6 is rotated.
  • the proximity distance of the tip portion 33 to the surface can be adjusted.
  • the branch pipe No1 is connected to the air cylinder 38 from the compressor 45 through the regulator 46, and air pressure is supplied to the inside of the air cylinder 38. This air pressure can be adjusted by the regulator 46.
  • Branch pipes No1 to No4 are connected to the regulator 46, and in this embodiment, pipes are respectively connected to the air cylinders 38 of the four urging devices 37. Therefore, each polishing chamber resistance plate 32 receives air pressure and rotates around the vertical axis 36 to suppress the movement of the grains.
  • annular collecting chamber 47 is formed below the dehulling chamber 20 of the grinding type vertical milling machine 1 (see FIG. 1), and a scraping blade 48 that rotates together with the whitening roll 6 is provided. .
  • a soot discharge port (not shown) is provided on the bottom surface of the collecting chamber 47 to discharge soot.
  • a collecting fan 49 is attached to the lower part of the main shaft 3, and air is sucked from the supply port or the like at the upper part of the machine body through the ridging chamber 20 and is discharged to the outside together with the bag.
  • Raw rice grains (brown rice) supplied to the inlet 24 (see FIG. 1) from a chute outside the figure are adjusted to an appropriate supply flow rate by the adjustment lever 26 and are evenly distributed in the circumferential direction by the guide body 25.
  • the rotation of the whitening roll 6 in the direction of arrow R shown in FIG. 3 causes the rice grains to actively flow (revolution and rotation) under a relatively low pressure, and contact the peripheral surface of the whitening roll 6. By doing so, the surface layer is shaved.
  • the raw rice grains supplied to the milling chamber 17 are projected to the milling roll 6 side by the extension of the movable rod 39 of the air cylinder 38 by the plurality of milling chamber resistors 32 arranged in the milling chamber 17.
  • the tip 33 of the room resistor 32 is close to the outer peripheral surface of the whitening roll 6, whereby the grains that move with the whitening roll 6 are captured and moved toward the bent part 34 of the whitening room resistor 32.
  • the tip 33 of the milling chamber resistor 32 is close to the outer peripheral surface of the milling roll 6 and the grains are captured by the bent section 34. Therefore, the grain receiving action is stabilized, and the grains The wrinkles in the streak-like grooves on the dorsal side of the grains are sufficiently removed.
  • polishing chamber resistors 32 are arranged in the circumferential direction in the polishing chamber 17, so that each polishing chamber resistor 32 has a polishing chamber 17 (sperm section). ) Is formed in a plural number (that is, there are four milling chambers (a milling section partitioned between a plurality of milling chamber resistors 32, 32) in one grain machine) . That is, in the state where the rice grains are received by the whitening chamber resistor 32, the whitening roll 6 rotates in the rotation direction R and the surface layer of the rice grains is shaved, so that an independent scouring action is generated for each scouring section.
  • the weight lever 30 near the rice grain outlet 28 is not required, and the manufacturing cost can be reduced.
  • the wrinkles in the streak-like grooves on the back side of the grain are sufficiently removed.
  • four white chamber resistors 32 are arranged in the circumferential direction in the white chamber 17, but the present invention is not limited to this, and six to ten circumferential chamber resistors are arranged in the circumferential direction.
  • a polishing chamber resistor 32 may be provided.
  • the removal wire mesh cylinder 16 is not limited to four divisions, and an appropriate number such as six to sufficient division can be set.
  • the movable rod 39 is pushed against the air pressure through the milling chamber resistor 32 by the pressing force of the grains. . Then, although the pressure inside the air cylinder 45 becomes high, the regulator 46 adjusts this pressure change, and it is prevented that the movement of a grain is suppressed too much.
  • Example 1 The conventional grain refiner described in Patent Document 1 (hereinafter referred to as “conventional machine”) and the improved grain refiner described in the embodiment of the present invention (hereinafter referred to as “improved machine”). The changes in whiteness and crushed particles were compared. Whiteness was measured with a whiteness meter model C-600 manufactured by Kett. The test conditions are shown in Table 1, and the results are shown in FIG.
  • Example 2 The ratio of whiteness and back muscles was compared between the previous model and the improved model. The conditions are the same as in Table 1, and the results are shown in FIG. From the results shown in FIG. 7, it was found that the improved machine has a lower whiteness than the conventional machine and removes the wrinkles in the streak-like grooves on the back side of the grain.
  • Example 3 The changes in accumulated current and whiteness were compared between the previous model and the improved model. The conditions are the same as in Table 1, and the results are shown in FIG. From the results shown in FIG. 8, it was found that the improved machine reached the target whiteness with about 26% less current than the conventional machine.
  • the tip portion is close to the outer peripheral surface of the whitening roll, the cross section is bent in a bowl shape, and further, the whitening chamber resistance plate 32 extended in the axial direction of the whitening roll, Since a plurality of grains are arranged in the milling chamber 17, the grains are captured by the bent portion of the milling chamber resistance plate 32, and the grain receiving action is stabilized, and the dorsal streak of the grains is formed. The wrinkles in the groove are sufficiently removed.
  • the whiteness can be increased while suppressing the generation rate of the crushed particles by about 2%. Furthermore, even if the whiteness is low, the wrinkles in the streak-like grooves on the back side of the grain can be removed, and the target whiteness can be reached with about 26% less current.
  • the present invention can be applied to a vertical or horizontal cereal machine.

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  • Adjustment And Processing Of Grains (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A grinding type vertical grain milling machine is configured such that: a plurality of braces are disposed around a bran-removing wire mesh cylinder, and a milling chamber resistance is disposed on each of these braces; the milling chamber resistances have an elongated plate shape extending in the axial direction of a grinding type milling roll and are formed such that the cross-section thereof is bent into a hook shape; the base end part of the cross-section is supported rotatably by the braces; the tip part of the cross-section is in the proximity of the outer peripheral surface of the grinding milling roll; and the curved part of the cross-section operates so as to impart resistance such that the movement of the moving grain kernels is suppressed.

Description

研削式竪型精穀機Grinding type vertical grain mill
　本発明は、立設した主軸に研削式精白ロールを軸装した研削式竪型精穀機に関する。 The present invention relates to a grinding-type vertical milling machine in which a grinding-type whitening roll is mounted on a standing spindle.
　研削式竪型精穀機は、立設した除糠金網筒内の主軸に、砥石である研削式精白ロールを軸装し、除糠金網筒と研削式精白ロールとの間を精白室としてその一端を穀粒供給部に、他端を穀粒排出部に連絡した構造を基本とする。精白作用が強力なのと精白室が竪型であるために残留穀粒の処理が容易であるなどの特徴を有する。一方、精白室が竪型であるために、穀粒の自然落下の作用が強く、十分な研削作用を受けないまま排出されたり、精白作用に斑（むら）が生じたりする。これを解決するために種々の工夫がなされている。 A grinding-type vertical milling machine is equipped with a grinding-type whitening roll, which is a grindstone, on the main shaft in an upright-type removal-type metal screen cylinder. The basic structure is such that one end communicates with the grain supply unit and the other end communicates with the grain discharge unit. It has characteristics such as a strong whitening effect and a simple whitening chamber, which makes it easy to treat residual grains. On the other hand, since the whitening chamber is bowl-shaped, the action of the natural fall of the grain is strong, and it is discharged without receiving a sufficient grinding action, or spots (unevenness) occur in the whitening action. Various solutions have been made to solve this problem.
　特許文献１の精穀機では、精白室内での米粒の流動に抵抗を付与する抵抗体が設けられている。この抵抗体は、先端部が、研削式精白ロール体の外周面に近接し、研削式精白ロール体の回転に伴って移動する穀粒にその移動を阻止する抵抗を付与するものであり、先端部が研削式精白ロール体の外周面に対して研削式精白ロール体の半径方向で遠近に位置を調節可能とされるものである。 In the pulverizer of Patent Document 1, a resistor that provides resistance to the flow of rice grains in the milling chamber is provided. This resistor has a tip that is close to the outer peripheral surface of the grinding-type whitening roll body, and imparts resistance to the grains that move with the rotation of the grinding-type whitening roll body, The position of the portion can be adjusted in the distance direction in the radial direction of the grinding type whitening roll body with respect to the outer peripheral surface of the grinding type whitening roll body.
　これにより、抵抗体によって穀粒が堰き止められる格好で精白室に抑留され、その間に研削式精白ロール体の研削作用を受け、所望の精白が行われる、といった作用・効果がある。 This has the action and effect that the grain is retained in the milling chamber in such a way that the grain is blocked by the resistor, and the grinding milling action of the grinding type milling roll body is received during that time and desired milling is performed.
　しかしながら、抵抗体の調節の仕方によっては、穀粒の受け止め作用が不安定となり、穀粒の背側の筋状の溝にある糠が、未だ十分な除去成果を得られるまでに工夫がなされていなかった。 However, depending on how the resistor is adjusted, the grain receiving action becomes unstable, and the cocoon in the streak groove on the dorsal side of the grain is still devised until a sufficient removal result is obtained. There wasn't.
国際公開第２０１２／１５７４０２号公報International Publication No. 2012/157402
　本発明は上記問題点にかんがみ、穀粒の受け止め作用を安定させ、長粒種米の米粒の背側における筋状溝にある糠をほぼ完全に除去することのできる研削式竪型精穀機を提供することを提供することを技術的課題とする。 In view of the above problems, the present invention provides a grinding-type vertical milling machine capable of stabilizing the grain receiving action and removing almost completely the wrinkles in the streak grooves on the dorsal side of the long grain rice grains. Providing what to do is a technical challenge.
　上記課題を解決するため本発明による研削式竪型精穀機は、立設した除糠金網筒内に回転自在に設けた主軸に、研削式精白ロールを軸装し、前記除糠金網筒と前記研削式精白ロールとの間を主要部とする精白室の一端を穀粒供給部に、他端を穀粒排出部にそれぞれ連絡したものであって、前記除糠金網筒の周囲には、複数の支柱と、これら支柱のそれぞれに配置した精白室抵抗体とが設けられており、該精白室抵抗体は、前記研削式精白ロールの軸方向に延びた長尺板状であり、かつ、横断面が鉤状に折れ曲がるように形成されていて、横断面の基端部は前記支柱に回動可能に支持され、横断面の先端部は前記研削精白ロールの外周面に近接し、さらに、横断面の屈曲部は移動する穀粒にその移動を抑制して抵抗を付与するように作用させることを特徴とする。 In order to solve the above-mentioned problems, a grinding type vertical milling machine according to the present invention includes a grinding type whitening roll mounted on a main shaft that is rotatably provided in a vertical stripping metal mesh cylinder, One end of the milling chamber with the grinding type milling roll as the main part is connected to the grain supply unit, and the other end is connected to the grain discharge unit, and around the stripping wire mesh cylinder, A plurality of struts and a milling chamber resistor disposed on each of the columns are provided, the milling chamber resistor is a long plate extending in the axial direction of the grinding type milling roll, and The cross section is formed to be bent in a bowl shape, the base end of the cross section is rotatably supported by the support column, the tip of the cross section is close to the outer peripheral surface of the grinding whitening roll, The bent part of the cross section acts on the moving grain to suppress its movement and give resistance. It is characterized in.
　また、前記精白室抵抗体が長尺板状であり、かつ、横断面がほぼＬ字型に形成されていることを特徴とする。 Further, the polishing chamber resistor is a long plate and has a substantially L-shaped cross section.
　さらに、前記複数の支柱と前記複数の精白室抵抗体とによって前記精白室内を円周方向で複数に区分し、各々が独立した搗精作用が生じるように複数の搗精セクションを形成していることを特徴とする。 Further, the whitening chamber is divided into a plurality of circumferential directions by the plurality of struts and the plurality of whitening chamber resistors, and a plurality of sperm sections are formed so that each has an independent sperm action. Features.
　そして、本発明による研削式竪型精穀機は、前記精白室他端の穀粒排出部に、除糠金網筒の一部を開口した排出口と、該排出口に接続した排出樋と、前記排出口を塞ぐ蓋体とを設け、該蓋体には、該蓋体への付勢力を付与する抵抗装置を設けることなく、穀粒の流出圧のみで前記排出口が開口されるように形成したことを特徴とする。 And, the grinding type vertical milling machine according to the present invention, in the grain discharge section at the other end of the milling chamber, a discharge opening that opens a part of the stripping wire mesh cylinder, a discharge basket connected to the discharge opening, A lid that closes the outlet, and the lid is opened only by the outflow pressure of the grain without providing a resistance device that applies a biasing force to the lid. It is formed.
　本発明によれば、除糠金網筒の周囲に、複数の支柱と、これら支柱のそれぞれに配置した精白室抵抗体とを設け、該精白室抵抗体が、研削式精白ロールの軸方向に延びた長尺板状であり、かつ、横断面が鉤状に折れ曲がるように形成されていて、横断面の基端部が前記支柱に回動可能に支持され、横断面の先端部が研削精白ロールの外周面に近接し、さらに、横断面の屈曲部は移動する穀粒にその移動を抑制して抵抗を付与するように作用させるので、屈曲部では極めて容易に穀粒が捕捉されるようになるから、穀粒の受け止め作用が安定することとなり、穀粒の背側の筋状の溝にある糠が、十分に除去されるようになる。 According to the present invention, a plurality of columns and a whitening chamber resistor disposed on each of these columns are provided around the stripping wire mesh cylinder, and the whitening chamber resistor extends in the axial direction of the grinding type whitening roll. A long plate-like shape, and the cross section is bent like a bowl, the base end of the cross section is rotatably supported by the support column, and the tip of the cross section is a grinding whitening roll In addition, the bent portion of the cross section acts to restrain the movement and impart resistance to the moving grain, so that the kernel is captured very easily at the bent portion. Therefore, the grain receiving action is stabilized, and the wrinkles in the streak groove on the dorsal side of the grain are sufficiently removed.
　前記精白室抵抗体が長尺板状であり、かつ、横断面がほぼＬ字型の長尺板状に形成されているから、従来の横断面が直線状の精白室抵抗板と比較すれば、砕粒の発生割合を約２％程度低く抑えながら、白度を上昇させることができ、さらには、低白度であっても穀粒の背側の筋状の溝にある糠を除去させることができる。 Since the whitening chamber resistor has a long plate shape and is formed in a long plate shape having a substantially L-shaped cross section, compared with a whitening chamber resistance plate having a conventional cross section that is linear. The whiteness can be increased while keeping the generation rate of crushed grains low by about 2%. Furthermore, even if the whiteness is low, the wrinkles in the streak grooves on the dorsal side of the grains can be removed. Can do.
　さらに、前記複数の支柱と前記複数の精白室抵抗体とによって前記精白室内を円周方向で複数に区分して複数の搗精セクションに形成されているから、各々の搗精セクションがそれぞれ独立した搗精作用を生じるよう搗精を行うことができる。 Further, since the polishing chamber is divided into a plurality of sperm sections in the circumferential direction by the plurality of struts and the plurality of sperm chamber resistors, each sperm section has an independent sperm action. Can be performed to produce
　そして、本発明による研削式竪型精穀機は、精白室他端の穀粒排出部に、除糠金網筒の一部を開口した排出口と、該排出口に接続した排出樋と、前記排出口を塞ぐ蓋体とを設け、該蓋体には、該蓋体への付勢力を付与する抵抗装置を設けることなく、穀粒の流出圧のみで前記排出口が開口されるように形成してあるから、従来、排出口付近に設けていた抵抗装置を不要として、製造コストを削減するとともに、無負荷で蓋体から米粒を流出させた場合でも、穀粒の背側の筋状の溝にある糠をほぼ完全に除去することができる。 And, the grinding type vertical milling machine according to the present invention, in the grain discharge section at the other end of the whitening chamber, a discharge opening that opens a part of the stripping wire mesh cylinder, a discharge basket connected to the discharge opening, A lid that closes the discharge port, and the lid is formed so that the discharge port is opened only by the outflow pressure of the grain without providing a resistance device that applies a biasing force to the lid. Therefore, the conventional resistance device provided near the discharge port is not necessary, and the manufacturing cost is reduced, and even when rice grains are allowed to flow out from the lid without load, the streak on the back side of the grains The wrinkles in the groove can be almost completely removed.
研削式竪型精穀機の全体構成を示す概略断面図である。It is a schematic sectional drawing which shows the whole structure of a grinding type vertical milling machine. 一部を分解して示す研削式竪型精穀機の斜視図である。It is a perspective view of the grinding type vertical milling machine which shows a part disassembled. 主として精白ロール部分を示す斜視図である。It is a perspective view which mainly shows the whitening roll part. 研削精穀部の横断面図である。It is a cross-sectional view of a ground grain part. 付勢装置の内部構造を示す図４のＡ－Ａ断面図である。FIG. 5 is a cross-sectional view taken along line AA of FIG. 4 showing the internal structure of the urging device. 従来機と改良機とで、白度と砕粒の変化を比較したグラフである。It is the graph which compared the change of the whiteness and the crushed particle with a conventional machine and an improved machine. 同上の白度と背筋有りの割合を比較したグラフである。It is the graph which compared the whiteness same as the above and the ratio with a back muscle. 同上の積算電流と白度の変化を比較したグラフである。It is the graph which compared the integrated current same as the above, and the change of whiteness.
　以下、本発明の好適な実施形態を図面に基づいて説明する。
　図１は、研削式竪型精穀機１の全体構成の概略図であり、図２は一部を分解して示す研削式竪型精穀機１の斜視図であり、図３は主として精白ロール部分を示す斜視図であり、図４は研削精穀部の横断面図であり、図５は付勢装置の内部構造を示す図４のＡ－Ａ線に沿った断面図である。 DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings.
FIG. 1 is a schematic view of the overall configuration of a grinding-type vertical milling machine 1, FIG. 2 is a perspective view of the grinding-type vertical milling machine 1 shown partially exploded, and FIG. FIG. 4 is a perspective view showing a roll portion, FIG. 4 is a cross-sectional view of a ground grain portion, and FIG. 5 is a cross-sectional view taken along line AA of FIG. 4 showing the internal structure of the urging device.
　本実施形態の研削式竪型精穀機１部は、本体ベース２のほぼ中央に主軸３を上部軸受部４及び下部軸受部５によって立設し、上部軸受部４の直上に研削式精白ロール６（以下、精白ロール６）を複数載置固定して主要な精穀部が形成される。主軸３は、本体ベース２に付設したモータベース７に固設したモータ８により、モータプーリ９、主軸プーリ１０、Ｖベルト１１を介して駆動されることになる。 In one part of the grinding type vertical mill of this embodiment, a main shaft 3 is erected by an upper bearing part 4 and a lower bearing part 5 substantially at the center of a main body base 2, and a grinding type whitening roll is directly above the upper bearing part 4. A plurality of 6 (hereinafter, whitening rolls 6) are placed and fixed to form a main grain portion. The main shaft 3 is driven via a motor pulley 9, a main shaft pulley 10, and a V belt 11 by a motor 8 fixed to a motor base 7 attached to the main body base 2.
　精白ロール６は、主軸３に取り付けられた複数の砥石盤１２と、この砥石盤１２相互の間に介挿したスペーサ１３を積層したものである。砥石盤１２は、周面に研削用切刃（研削砥石の砥粒）を全周に焼結などの手段により固定したものである。スペーサ１３には、積層された複数の砥石盤１２間から切削用切刃に向けて噴風する噴風口１３ａ（図４参照）を設けることもでき、この噴風口１３ａを形成することにより、機外から取り込んだ空気を除糠用噴風に利用して、搗精時の除糠を促進することが可能となる。
　前記精白ロール６の上端部には、原料の送り込みロール１４が主軸３に軸着されている。送り込みロール１４の外周面には、スクリュー羽根１５が設けられ、該スクリュー羽根１５の回転により原料を送り込むことができる。 The whitening roll 6 is formed by laminating a plurality of grinding wheels 12 attached to the main shaft 3 and spacers 13 interposed between the grinding wheels 12. The grinding wheel 12 has a cutting edge for grinding (abrasive grains of a grinding wheel) fixed to the entire surface by means such as sintering. The spacer 13 can also be provided with a blast port 13a (see FIG. 4) for blasting from a plurality of the grindstones 12 stacked toward the cutting blade. By forming the blast port 13a, the machine 13 By using the air taken in from the outside as a fountain for removal, it is possible to promote removal at the time of semen.
A raw material feed roll 14 is attached to the main shaft 3 at the upper end of the whitening roll 6. Screw blades 15 are provided on the outer peripheral surface of the feed roll 14, and the raw material can be fed by rotation of the screw blades 15.
　精白ロール６の周囲には、所定の間隔を介して除糠金網筒１６（図１）が立設される。そして、該除糠金網筒１６と前記精白ロール６との間に精白室１７が形成される。除糠金網筒１６は、この実施形態においては、縦割状に四分割され、精白ロール６の周囲に立設した四本の支柱１８により各両側縁を固定される。さらに、各支柱１８間に弧状の除糠室カバー１９を取り付けて除糠室２０を形成する。図１において、符号２１は支柱カバーである。 A stripping wire cylinder 16 (FIG. 1) is erected around the polishing roll 6 through a predetermined interval. A whitening chamber 17 is formed between the stripping wire cylinder 16 and the whitening roll 6. In this embodiment, the stripping wire cylinder 16 is divided into four in a vertically split shape, and each side edge is fixed by four columns 18 erected around the polishing roll 6. Further, an arc-shaped removal chamber cover 19 is attached between the columns 18 to form a removal chamber 20. In FIG. 1, the code | symbol 21 is a support | pillar cover.
　原料を案内するための供給筒２２は、支柱１８に載置して取り付けられる。この供給筒２２は、送り込みロール１４を取り囲むものであり、供給筒２２の上方にはホッパ筒２３を設け、ホッパ筒２３の上面壁に投入口２４を開口する。ホッパ筒２３内には、中空円すい状の案内体２５と、その上部に調節レバー２６によって回動される２枚の孔開き回動板からなる供給量調節装置２７を設けてある。 The supply cylinder 22 for guiding the raw material is mounted on the support 18. The supply cylinder 22 surrounds the feed roll 14, and a hopper cylinder 23 is provided above the supply cylinder 22, and an input port 24 is opened in the upper surface wall of the hopper cylinder 23. In the hopper cylinder 23, a supply amount adjusting device 27 including a hollow conical guide body 25 and two perforated rotating plates rotated by an adjusting lever 26 is provided on the guide body 25.
　精白室１７の下端には、除糠金網筒１６の一部を開口して排出口２８を形成し、排出口２８に接続して排出樋２９が設ける。排出樋２９には、分銅レバー　３０によって操作される蓋体３１が設けられる。この実施形態では分銅レバー３０によって蓋体３１を付勢する構成としたが、これに限定されることはない。例えば、分銅レバー３０の代替品としてエアシリンダーにより蓋体３１を付勢することが考えられる。また、分銅レバー３０やエアシリンダーなどを設けることなく、無負荷で蓋体３１から米を流出される構成も考えられる。 At the lower end of the whitening chamber 17, a part of the metal strip 16 is opened to form a discharge port 28, and a discharge rod 29 is provided connected to the discharge port 28. The discharge rod 29 is provided with a lid 31 that is operated by a weight lever 30. In this embodiment, the lid 31 is urged by the weight lever 30, but the present invention is not limited to this. For example, as an alternative to the weight lever 30, it is conceivable to urge the lid 31 with an air cylinder. Further, a configuration in which rice is allowed to flow out from the lid 31 without load without providing the weight lever 30 or the air cylinder is also conceivable.
　精白室１７には、複数の支柱１８のそれぞれに配置した精白室抵抗体３２が突出して設けられている。そして、この精白室抵抗体３２は、研削式精白ロール６の軸方向に延びた長尺板状であり、かつ、横断面が鉤状に折れ曲がるように形成されている。図３、図４及び図５に見られる精白室抵抗体３２は、横断面がほぼＬ字型に形成されている。しかし、この精白室抵抗板３２は、Ｌ字型形状に限定されることはなく、鉤（かぎ）状になっていればよく、例えば、横断面で見て「く」字型や、「Ｊ」字型や、「Ｕ」字型の形状を種々採用することができる。 The whitening chamber 17 is provided with a whitening chamber resistor 32 protruding from each of the plurality of columns 18. The whitening chamber resistor 32 has a long plate shape extending in the axial direction of the grinding type whitening roll 6 and is formed so that its transverse section is bent into a bowl shape. The white chamber resistor 32 shown in FIGS. 3, 4 and 5 has a substantially L-shaped cross section. However, the whitening chamber resistance plate 32 is not limited to an L-shape, and may be a hook shape. Various shapes of "" and "U" can be employed.
　本実施形態の横断面がほぼＬ字型に形成された精白室抵抗体３２は、その先端部３３が研削精白ロール体６の外周面に近接する。このときの先端部３３は砥石盤１２の中心方向（主軸３方向）に向いている（図４及び図５）。また、Ｌ字の屈曲部３４は精白ロール６の回転により移動する穀粒を抑制するような抵抗を付与する役目をする。そして、先端部３２の他方側の基端部３５は、支柱１８に内装した縦軸３６対して回動可能に支持されている。 In the whitening chamber resistor 32 having a substantially L-shaped cross section in the present embodiment, the tip 33 thereof is close to the outer peripheral surface of the grinding whitening roll body 6. The tip portion 33 at this time faces the center direction of the grinding wheel 12 (the direction of the main shaft 3) (FIGS. 4 and 5). Further, the L-shaped bent portion 34 plays a role of imparting resistance that suppresses the grains that move due to the rotation of the whitening roll 6. The base end portion 35 on the other side of the tip end portion 32 is supported so as to be rotatable with respect to the vertical axis 36 built in the column 18.
　すなわち、精白室抵抗板３２には、付勢装置３７が備えられている。付勢装置３７は、エアアクチュエーターであって、図４，図５に示すように、エアシリンダー３８、可動ロッド３９及び調圧装置４０とで構成されている。エアシリンダー３８は一端の取り付け部４１を調圧装置４０側の結合ブロック４２に軸４３で回動可能に取付け、他端を精白室抵抗板３２にフリージョイント構造４４で回動可能に連結している。精白室抵抗板３２は一端を支柱１８に内装した縦軸３６で回動可能に支持されており、可動ロッド３９の進退で縦軸３６を中心に回動して、研削精白ロール体６の外周面への先端部３３の近接距離を調節することができる。 That is, the whitening chamber resistance plate 32 is provided with an urging device 37. The urging device 37 is an air actuator and includes an air cylinder 38, a movable rod 39, and a pressure adjusting device 40 as shown in FIGS. The air cylinder 38 has an attachment portion 41 at one end attached to a coupling block 42 on the pressure regulating device 40 side so as to be rotatable by a shaft 43 and the other end connected to a polishing chamber resistance plate 32 to be rotatable by a free joint structure 44. Yes. The whitening chamber resistance plate 32 is rotatably supported by a vertical axis 36 whose one end is built in the support column 18, and is rotated around the vertical axis 36 by the advancement and retraction of the movable rod 39, so that the outer periphery of the grinding whitening roll body 6 is rotated. The proximity distance of the tip portion 33 to the surface can be adjusted.
　エアシリンダー３８には、コンプレッサー４５からレギュレーター４６を介して枝管Ｎｏ１が接続されており、エアシリンダー３８内部にエア圧が供給されている。このエア圧は、レギュレーター４６によって調整することができる。レギュレーター４６には枝管Ｎｏ１～Ｎｏ４が接続されており、この実施形態において、四個の付勢装置３７におけるエアシリンダー３８のそれぞれに配管されている。したがって、各精白室抵抗板３２は、エア圧を受けて前記縦軸３６を中心に回動し、穀粒の移動を抑制することができる。 The branch pipe No1 is connected to the air cylinder 38 from the compressor 45 through the regulator 46, and air pressure is supplied to the inside of the air cylinder 38. This air pressure can be adjusted by the regulator 46. Branch pipes No1 to No4 are connected to the regulator 46, and in this embodiment, pipes are respectively connected to the air cylinders 38 of the four urging devices 37. Therefore, each polishing chamber resistance plate 32 receives air pressure and rotates around the vertical axis 36 to suppress the movement of the grains.
　また、前記研削式竪型精穀機１の除糠室２０の下方には、環状の集糠室４７を形成し（図１参照）、精白ロール６と一体に回転される掻き出し羽根４８を設ける。集糠室４７の底面には糠排出口（図示せず）を設け、糠を排出する。また、主軸３の下部には集糠用ファン４９が取り付けられており、除糠室２０を通じて機体上部の供給口などから空気を吸引して糠とともに機外に排出する。 Further, an annular collecting chamber 47 is formed below the dehulling chamber 20 of the grinding type vertical milling machine 1 (see FIG. 1), and a scraping blade 48 that rotates together with the whitening roll 6 is provided. . A soot discharge port (not shown) is provided on the bottom surface of the collecting chamber 47 to discharge soot. Further, a collecting fan 49 is attached to the lower part of the main shaft 3, and air is sucked from the supply port or the like at the upper part of the machine body through the ridging chamber 20 and is discharged to the outside together with the bag.
　以下、本実施形態における具体的作動につき説明する。図外のシュートから投入口２４（図１参照）に供給される原料米粒（玄米）は、調節レバー２６によって適度な供給流量に調節され、かつ、案内体２５によって円周方向に均等に分散されながら精白室１７上部に供給される。
　精白室１７内において、精白ロール６の回転により（図３に示す矢印Ｒ方向）、米粒は比較的低圧力の下で活発に流動（公転・自転）しながら、精白ロール６の周面に接触することにより表面層を削られる。 Hereinafter, specific operations in the present embodiment will be described. Raw rice grains (brown rice) supplied to the inlet 24 (see FIG. 1) from a chute outside the figure are adjusted to an appropriate supply flow rate by the adjustment lever 26 and are evenly distributed in the circumferential direction by the guide body 25. While being supplied to the upper part of the whitening chamber 17.
In the whitening chamber 17, the rotation of the whitening roll 6 (in the direction of arrow R shown in FIG. 3) causes the rice grains to actively flow (revolution and rotation) under a relatively low pressure, and contact the peripheral surface of the whitening roll 6. By doing so, the surface layer is shaved.
　このとき、精白室１７に供給される原料米粒は、精白室１７内に配設した複数個の精白室抵抗体３２が、エアシリンダー３８の可動ロッド３９の伸長により精白ロール６側にせり出し、精白室抵抗体３２の先端部３３が精白ロール６の外周面に近接し、これにより、精白ロール６に伴って移動する穀粒が捕捉されて、精白室抵抗体３２の屈曲部３４側に移動して穀粒の動きを抑制する。すなわち、穀粒には精白室１７内の円周方向において移動を抑制する抵抗が付与されるようになる（図５参照）。
　本実施形態では、精白室抵抗体３２の先端部３３が精白ロール６の外周面に近接し、屈曲部３４で穀粒が捕捉されるようになるから、穀粒の受け止め作用が安定し、穀粒の背側の筋状の溝にある糠が、十分に除去されるようになる。 At this time, the raw rice grains supplied to the milling chamber 17 are projected to the milling roll 6 side by the extension of the movable rod 39 of the air cylinder 38 by the plurality of milling chamber resistors 32 arranged in the milling chamber 17. The tip 33 of the room resistor 32 is close to the outer peripheral surface of the whitening roll 6, whereby the grains that move with the whitening roll 6 are captured and moved toward the bent part 34 of the whitening room resistor 32. To suppress the movement of the grain. That is, the grain is given resistance to suppress movement in the circumferential direction in the whitening chamber 17 (see FIG. 5).
In the present embodiment, the tip 33 of the milling chamber resistor 32 is close to the outer peripheral surface of the milling roll 6 and the grains are captured by the bent section 34. Therefore, the grain receiving action is stabilized, and the grains The wrinkles in the streak-like grooves on the dorsal side of the grains are sufficiently removed.
　本実施形態では（図４参照）、精白室１７内に円周方向で四個の精白室抵抗体３２が配設されているから、それぞれの精白室抵抗体３２ごとに精白室１７（搗精セクション）が複数形成されているのと同じ作用が生じる（すなわち、一台の精穀機内に四つの精白室（複数の精白室抵抗体３２，３２間で仕切られた搗精セクション）があるということ）。つまり、精白室抵抗体３２により、米粒が受け止められた状態で、精白ロール６が回転方向Ｒへ回転して米粒の表面層が削られていくので、搗精セクションごとに独立した搗精作用が生じる。このように、搗精セクションごとに独立した搗精作用であるから、米粒の排出口２８付近の分銅レバー３０を不要として、製造コストを削減することができる。また、分銅レバー３０による負荷の無い、ほぼ無負荷の状態で蓋体３１から米粒を流出させた場合でも、穀粒の背側の筋状の溝にある糠が、十分に除去されるようになる。
　なお、図４の実施形態では、精白室１７内に円周方向で四個の精白室抵抗体３２が配設したが、これに限定されることはなく、円周方向に六乃至十個の精白室抵抗体３２を設けてもよい。これに合わせて、除糠金網筒１６も四分割に限らず、六乃至十分割等、適当な数を設定することができる。 In the present embodiment (see FIG. 4), four polishing chamber resistors 32 are arranged in the circumferential direction in the polishing chamber 17, so that each polishing chamber resistor 32 has a polishing chamber 17 (sperm section). ) Is formed in a plural number (that is, there are four milling chambers (a milling section partitioned between a plurality of milling chamber resistors 32, 32) in one grain machine) . That is, in the state where the rice grains are received by the whitening chamber resistor 32, the whitening roll 6 rotates in the rotation direction R and the surface layer of the rice grains is shaved, so that an independent scouring action is generated for each scouring section. In this way, since the sperm action is independent for each sperm section, the weight lever 30 near the rice grain outlet 28 is not required, and the manufacturing cost can be reduced. In addition, even when the rice grain is allowed to flow out from the lid 31 in the almost unloaded state with no load due to the weight lever 30, the wrinkles in the streak-like grooves on the back side of the grain are sufficiently removed. Become.
In the embodiment of FIG. 4, four white chamber resistors 32 are arranged in the circumferential direction in the white chamber 17, but the present invention is not limited to this, and six to ten circumferential chamber resistors are arranged in the circumferential direction. A polishing chamber resistor 32 may be provided. In accordance with this, the removal wire mesh cylinder 16 is not limited to four divisions, and an appropriate number such as six to sufficient division can be set.
　また、何らかの理由により、精白室１７内で砕粒が発生するような高い圧力状態のときは、穀粒の圧迫力により精白室抵抗体３２を介して可動ロッド３９がエア圧に抗して押し込まれる。すると、エアシリンダー４５の内部の圧力が高くなるが、この圧力変化はレギュレーター４６が調整し、穀粒の移動が過剰に抑制されるのが防止される。 Further, for some reason, in a high pressure state where crushed particles are generated in the milling chamber 17, the movable rod 39 is pushed against the air pressure through the milling chamber resistor 32 by the pressing force of the grains. . Then, although the pressure inside the air cylinder 45 becomes high, the regulator 46 adjusts this pressure change, and it is prevented that the movement of a grain is suppressed too much.
　搗精作用の間、集糠用ファン４９により、ホッパ筒２３から吸入される外気が、精白ロール６内を通って除糠室２１を通過し、下方へ抜かれるので、除糠作用を高めるとともに米粒の撹拌を促し、また、米温の過度の上昇を抑制する。 During the milling action, the outside air sucked from the hopper cylinder 23 by the collecting fan 49 passes through the milling roll 21 through the milling roll 6 and is drawn downward. , And also prevents excessive rise in rice temperature.
　　［実施例１］
　特許文献１に記載された従来の精穀機（以下、「従来機」という。）と、本発明の実施形態に記載された改良した精穀機（以下、「改良機」という。）との間で、白度と砕粒の変化を比較した。白度はケット社製の白度計 型式Ｃ－６００で測定した。試験条件を表１に示し、結果を図６に示す。
Figure JPOXMLDOC01-appb-T000001
 [Example 1]
The conventional grain refiner described in Patent Document 1 (hereinafter referred to as “conventional machine”) and the improved grain refiner described in the embodiment of the present invention (hereinafter referred to as “improved machine”). The changes in whiteness and crushed particles were compared. Whiteness was measured with a whiteness meter model C-600 manufactured by Kett. The test conditions are shown in Table 1, and the results are shown in FIG.
Figure JPOXMLDOC01-appb-T000001
　図６に示す結果から、改良機は、従来機に比べて砕粒の発生割合を約２％程度低く抑えながら、白度を上昇させることができることが分かった。 From the results shown in FIG. 6, it was found that the improved machine can increase the whiteness while suppressing the generation rate of the crushed particles to be about 2% lower than that of the conventional machine.
　　　[実施例２]
　従来機と改良機との間で、白度と背筋有りの割合を比較した。条件は表１と同様であり、結果を図７に示す。
　図７に示す結果から、改良機は、従来機に比べて低白度で穀粒の背側の筋状の溝にある糠が除去されることが分かった。 [Example 2]
The ratio of whiteness and back muscles was compared between the previous model and the improved model. The conditions are the same as in Table 1, and the results are shown in FIG.
From the results shown in FIG. 7, it was found that the improved machine has a lower whiteness than the conventional machine and removes the wrinkles in the streak-like grooves on the back side of the grain.
　　　[実施例３]
　従来機と改良機との間で、積算電流と白度の変化を比較した。条件は表１と同様であり、結果を図８に示す。
　図８に示す結果から、改良機は、従来機に比べて約２６％程度少ない電流で目標白度に到達することが分かった。 [Example 3]
The changes in accumulated current and whiteness were compared between the previous model and the improved model. The conditions are the same as in Table 1, and the results are shown in FIG.
From the results shown in FIG. 8, it was found that the improved machine reached the target whiteness with about 26% less current than the conventional machine.
　以上のように本実施例によれば、先端部が精白ロール外周面に近接するとともに、横断面が鉤状に屈曲し、さらに、精白ロールの軸方向に長く伸びた精白室抵抗板３２を、精白室１７内に複数配設してあるので、精白室抵抗板３２の屈曲部により穀粒が捕捉されるようになり、穀粒の受け止め作用が安定し、穀粒の背側の筋状の溝にある糠が、十分に除去されるようになる。 As described above, according to this embodiment, the tip portion is close to the outer peripheral surface of the whitening roll, the cross section is bent in a bowl shape, and further, the whitening chamber resistance plate 32 extended in the axial direction of the whitening roll, Since a plurality of grains are arranged in the milling chamber 17, the grains are captured by the bent portion of the milling chamber resistance plate 32, and the grain receiving action is stabilized, and the dorsal streak of the grains is formed. The wrinkles in the groove are sufficiently removed.
　また、横断面が屈曲していない従来の直線状の精白室抵抗板と比較すれば、砕粒の発生割合を約２％程度低く抑えながら、白度を上昇させることができる。さらには、低白度であっても穀粒の背側の筋状の溝にある糠を除去させ、かつ、約２６％程度少ない電流で目標白度に到達させることができるようになった。 Also, compared with a conventional straight milling chamber resistor plate whose cross section is not bent, the whiteness can be increased while suppressing the generation rate of the crushed particles by about 2%. Furthermore, even if the whiteness is low, the wrinkles in the streak-like grooves on the back side of the grain can be removed, and the target whiteness can be reached with about 26% less current.
本発明は竪型又は横型の精穀機に適用することができる。 The present invention can be applied to a vertical or horizontal cereal machine.
１　　研削式竪型精穀機
２　　本体ベース
３　　主軸
４　　上部軸受部
５　　下部軸受部
６　　研削式精白ロール
７　　モータベース
８　　モータ
９　　主軸プーリ
１１　　Ｖベルト
１２　　砥石盤
１３　　スペーサ
１４　　送り込みロール
１５　　スクリュー羽根
１６　　除糠金網筒
１７　　精白室
１８　　支柱
１９　　除糠室カバー
２０　　除糠室
２１　　支柱カバー
２２　　供給筒
２３　　ホッパ筒
２４　　投入口
２５　　案内体
２６　　調節レバー
２７　　供給量調節装置
２８　　排出口
２９　　排出樋
３０　　分銅レバー
３１　　蓋体
３２　　精白室抵抗板
３３　　先端部
３４　　屈曲部
３５　　基端部
３６　　縦軸
３７　　付勢装置
３８　　エアシリンダー
３９　　可動ロッド
４０　　調圧装置
４１　　取り付け部
４２　　結合ブロック
４３　　軸
４４　　フリージョイント構造
４５　　エアシリンダー
４６　　レギュレーター
４７　　集糠室
４８　　掻き出し羽根
４９　　集糠用ファン DESCRIPTION OF SYMBOLS 1 Grinding type vertical mill 2 Main body base 3 Spindle 4 Upper bearing part 5 Lower bearing part 6 Grinding type whitening roll 7 Motor base 8 Motor 9 Spindle 11 V belt 12 Grinding wheel 13 Spacer 14 Feed roll 15 Screw blade 16 Removal Wire mesh cylinder 17 Whitening chamber 18 Strut 19 Removal chamber cover 20 Removal chamber 21 Strut cover 22 Supply cylinder 23 Hopper cylinder 24 Input port 25 Guide body 26 Adjusting lever 27 Supply amount adjusting device 28 Discharge port 29 Discharge rod 30 Weight lever 31 Lid 32 Refining chamber resistance plate 33 Front end 34 Bending portion 35 Base end 36 Vertical axis 37 Energizing device 38 Air cylinder 39 Movable rod 40 Pressure adjusting device 41 Mounting portion 42 Connecting block 43 Shaft 44 Free joint structure 45 Air cylinder 46 Regulator 47 Collection chamber 48 Scraping blade 4 9 Fan for concentration

Claims (4)

  1. 　立設した除糠金網筒内に回転自在に設けた主軸に、研削式精白ロールを軸装し、前記除糠金網筒と前記研削式精白ロールとの間を主要部とする精白室の一端を穀粒供給部に、他端を穀粒排出部にそれぞれ連絡した研削式竪型精穀機において、
    　前記除糠金網筒の周囲には、複数の支柱と、これら支柱のそれぞれに配置した精白室抵抗体とが設けられており、該精白室抵抗体は、前記研削式精白ロールの軸方向に延びた長尺板状であり、かつ、横断面が鉤状に折れ曲がるように形成されていて、横断面の基端部は前記支柱に回動可能に支持され、横断面の先端部は前記研削精白ロールの外周面に近接し、さらに、横断面の屈曲部は移動する穀粒にその移動を抑制して抵抗を付与するように作用させることを特徴とする研削式竪型精穀機。     A grinding-type whitening roll is mounted on a main shaft that is rotatably provided in an uprighting removal netting cylinder, and one end of a whitening chamber whose main part is between the removal-type metalizing cylinder and the grinding-type whitening roll is provided. In the grinding type vertical mill that connected the grain supply part to the grain discharge part at the other end,
    A plurality of columns and a whitening chamber resistor disposed on each of these columns are provided around the stripping wire cylinder, and the whitening chamber resistor extends in the axial direction of the grinding type whitening roll. And the base end of the cross section is rotatably supported by the column, and the tip of the cross section is the grinding whitening. A grinding-type vertical pulverizer characterized in that it is close to the outer peripheral surface of the roll, and the bent portion of the cross section acts on the moving grain so as to suppress its movement and impart resistance.
  2. 　前記精白室抵抗体は、長尺板状であり、かつ、横断面がほぼＬ字型に形成されてなる請求項１記載の研削式竪型精穀機。 The grinding type scissor mill according to claim 1, wherein the milling chamber resistor has a long plate shape and has a substantially L-shaped cross section.
  3. 　前記複数の支柱と前記複数の精白室抵抗体とによって前記精白室内を円周方向で複数に区分し、各々が独立した搗精作用が生じるように複数の搗精セクションを形成してなる請求項１又は２記載の研削式竪型精穀機。 2. The whitening chamber is divided into a plurality of circumferential directions by the plurality of struts and the whitening chamber resistors, and a plurality of sperm sections are formed so that each has an independent sperm action. 2. Grinding type vertical milling machine.
  4. 　前記精白室他端の穀粒排出部には、除糠金網筒の一部を開口した排出口と、該排出口に接続した排出樋と、前記排出口を塞ぐ蓋体とが設けられ、該蓋体には、該蓋体への付勢力を付与する抵抗装置を設けることなく、穀粒の流出圧のみで前記排出口が開口されるように形成されている請求項３記載の研削式竪型精穀機。 The grain discharge section at the other end of the milling chamber is provided with a discharge port that opens a part of the dehuller mesh tube, a discharge basket connected to the discharge port, and a lid that closes the discharge port, The grinding-type wrinkle according to claim 3, wherein the lid is formed so that the discharge port is opened only by the outflow pressure of the grain without providing a resistance device for applying a biasing force to the lid. Type grain milling machine.
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