EP0218727B1 - Rice cleaning unit - Google Patents

Rice cleaning unit Download PDF

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Publication number
EP0218727B1
EP0218727B1 EP19860902024 EP86902024A EP0218727B1 EP 0218727 B1 EP0218727 B1 EP 0218727B1 EP 19860902024 EP19860902024 EP 19860902024 EP 86902024 A EP86902024 A EP 86902024A EP 0218727 B1 EP0218727 B1 EP 0218727B1
Authority
EP
European Patent Office
Prior art keywords
rice
cleaning
strips
cleaning roll
bran removing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19860902024
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0218727A1 (en
Inventor
Soichi Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0218727A1 publication Critical patent/EP0218727A1/en
Application granted granted Critical
Publication of EP0218727B1 publication Critical patent/EP0218727B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • B02B3/08—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of beaters or blades

Definitions

  • the present invention is related to the improvement of Japan Patent Application No. 58-148615 with Publication number JP-A-6041548 applied for by the present applicant.
  • the present invention is related to the rice cleaning unit.
  • the rice cleaning unit has heretofore been commonly known as a unit in which removable, replaceable longitudinal rice-cleaning roll strips are attached and the circumference of these strips is surrounded by a polygonal rice-bran removing cylinder.
  • the rice-cleaning strips are attached to the front and rear as well as to the right and left of the rice-bran removing cylinder, it is difficult for grains of rice to flow down from the top, and thorough polishing is impossible because of a narrow-gap between the outside surface of the rice-cleaning roll strips and the inside surface of the rice-bran removing cylinder.
  • the rice-bran removing cylinder has a polygonal form-e.g. hexagonal or octagonal-in order to prevent simultaneous turning of rice grains and to ensure required polishing pressure, although efficiency is limited when resistance to rotation of rice grains depends on polygonal form only.
  • the present invention as defined in claim 1, does away with such difficulties by attaching rice-cleaning roll strips to either the front and back or right and left, in order to cope with the inflow difficulty for rice grains due to the aforementioned narrow gap, or by providing a rubbing device for the inside angular section of the polygonal rice-bran removing cylinder so that the rice-cleaning roll strips come into close proximity.
  • the dependent claims set out particular embodiments of the invention.
  • the number 1 indicates a frame on which the rice-cleaning assembly is mounted.
  • the number 2 indicates an outer case for the rice-cleaning assembly, the number 3 indicates a window which is made in the side of case 2, and number 4 indicates an operating window in case 2.
  • Inward projection 5 is provided for the top of case 2, and feed cylinder 7 is inserted through the top of opening 6, which is provided in the center of ring-like projection 5.
  • the number 8 indicates a feed hopper which is fixed to the top of said ring-like projection 5; feed cylinder 7 and feed hopper 8 are formed separately, and feed cylinder 7 then moves up and down through case 2 quite freely.
  • the number 9 indicates a shaft; one end of shaft 9 is fixed to case 2 and the other end is projected inward so as not to reach feed cylinder 7.
  • the number 10 indicates a shaft which is provided below shaft 9, then affixed to feed cylinder 7 and projected outward. Tilting rod 11 is attached between shaft 9 and shaft 10.
  • the number 12 is a spring which pulls said feed cylinder 7 upward.
  • the number 14 indicates a discharge port, 15 indicates a vertical rotary shaft, and 16 indicates a pulley which is attached to rotary shaft 15.
  • Fig. 3 illustrates a cross-section of said rice-bran cylinder 13 with rice-cleaning roller 17 inside.
  • Rice-bran cylinder 13 consists of iron sheets in which an indeterminate number of rice-bran removing holes are made; four such perforated iron sheets are bent and combined to form the assembly of rice-bran removing cylinder 13.
  • Four vertical pillars 19 are provided at the front and back as-well as at the right and left, then the rice-bran removing cylinders 13 and rubbing device 20 are attached with screws 44 to the inner surface of each vertical pillar 19.
  • each end of the rice-bran removing cylinder 13 is fit to the outer surface, and holder 22 is then attached by fitting from the outside and securing to vertical pillar 19 by tightening with screws 23. Therefore, the rice-bran removing cylinder 13 can be replaced with removing screws 23 and detaching holder 22.
  • the rubbing device 24 which has the same shape as the aforementioned rubbing device 20, is fit to the inside center of the rice-bran removing cylinder 13 and secured with screws 25 from the outside.
  • Hollow pipe 26, which has vent holes 27, is provided at the center of the rice-cleaning roller 17 and connected to the aforementioned vertical rotary shaft 15.
  • Gap 28 is provided around the circumference of hollow pipe 26 and mounting cylinder 29 is provided at the outside of gap 28.
  • Mounting cylinder 29 is provided with longitudinal slits 30 at fixed intervals at the front and back as well as the right and left. Some of the longitudinal slits 30 have passages 31 to said gap 28, while others have no passage.
  • the rice-cleaning strips 32 have a longitudinal square shape. In the lateral cross-section of rice-cleaning strip 32, the width of the inside which fits to mounting cylinder 29 is wider than that of the outside. Said rice-cleaning strips are fit to the front and rear sides of said mounting cylinder 29, while thin wall arc strips 33 are attached to the right and left sides in place of the rice-cleaning roll strips 32. Rice-cleaning roll strips 32 and arc strips 33 are then secured with roll holders 34. Inner edge 15 of roll holder 34 is made to fit to said slit 30, while the outer edge is enlarged by means of taper to form holding section 36.
  • Roll holder 34 which turns ahead of rice-cleaning roll strip 32 has no injection hole, while roll holder 34, which turns behind rice-cleaning roll piece 32, has backward injection hole 41.
  • said rice-cleaning roller 17 may have two-stage construction, consisting of upper and lower sections.
  • Grain is supplied from feed hopper 8; it then flows thorugh the inside of feed cylinder 7 into polishing chamber 42. In this case, a lot of grain flows into enlarged inflow chamber 43 because rice-cleaning roll strips 32 are provided at the front and rear sides only and thin wall arc strips 33 are provided at right and left sides.
  • rice-cleaning roll 17 When rotary shaft 15 is turned from the motor through pulley 16, rice-cleaning roll 17 turns counterclockwise as shown in Fig. 3, then grain moves counterclockwise so that it is forced out by the action of rice-cleaning strips 32. Therefore, some grain is forced out through taper section 45 of rice-cleaning strip 32 and moved together with rice-cleaning roll 17, it then gets into the space between the rice-cleaning roll strip and rice-bran removing cylinder 13.
  • the rice-cleaning roll piece comes to the position where it is facing rubbing devices 20 and 24, grain is thoroughly polished in this position by means of resistance between rice-cleaning roll strip 32 and opposing rubbing devices 20 and 24. In this case, thorough rice polishing is possible because of the minimized gap formed between rice-cleaning roll strip 32 and opposing rubbing devices 20 and 24.
  • tilting rod 11 When resistance increases, tilting rod 11 turns counterclockwise, centering around shaft 9, inclined tilting rod 11 then tends to a vertical position. Therefore, the volume of inflow chamber 43 is enlarged and resistance is removed, because feed cylinder 7 to which shaft 10 is attached moves downward and rice-bran removing cylinder 13 also moves downward.
  • rice-cleaning roll strip 32 or rice-bran removing cylinder 13 When rice-cleaning roll strip 32 or rice-bran removing cylinder 13 is damaged during operation, it can be readily replaced with a new one by removing holder 22 and screws 23.
  • rice-cleaning roll strip 32 When rice-cleaning roll strip 32 is divided into two sections, as illustrated in Fig. 2, rice cleaning of different degrees can be performed simultaneously because rice-cleaning roll strip 32 can consist of two parts which differ in roughness.

Landscapes

  • Adjustment And Processing Of Grains (AREA)
  • Food-Manufacturing Devices (AREA)
  • Cereal-Derived Products (AREA)
EP19860902024 1985-03-28 1986-03-27 Rice cleaning unit Expired EP0218727B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP64740/85 1985-03-28
JP6474085A JPS61222544A (ja) 1985-03-28 1985-03-28 精米装置

Publications (2)

Publication Number Publication Date
EP0218727A1 EP0218727A1 (en) 1987-04-22
EP0218727B1 true EP0218727B1 (en) 1989-10-18

Family

ID=13266849

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860902024 Expired EP0218727B1 (en) 1985-03-28 1986-03-27 Rice cleaning unit

Country Status (7)

Country Link
EP (1) EP0218727B1 (no)
JP (1) JPS61222544A (no)
CN (1) CN1003981B (no)
AU (1) AU578358B2 (no)
CH (1) CH664299A5 (no)
DE (1) DE3690156T1 (no)
WO (1) WO1986005716A1 (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH673596A5 (no) * 1987-07-22 1990-03-30 Buehler Ag
AU599505B2 (en) * 1988-08-04 1990-07-19 Satake Engineering Co. Ltd. Cereal-grain polishing apparatus
JPH0775741A (ja) * 1993-09-07 1995-03-20 Satake Eng Co Ltd 研削式竪型精穀機の除糠用多孔性筒状体
CN102614954A (zh) * 2012-04-24 2012-08-01 周立汉 一种颗粒粮食加工设备
JP6236742B2 (ja) * 2013-12-12 2017-11-29 株式会社サタケ 搗精装置
CN105149032B (zh) * 2015-07-22 2018-05-29 山东同泰集团股份有限公司 一种碾米机用刀辊及碾米机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5322063A (en) * 1976-08-09 1978-03-01 Satake Eng Co Ltd Refining device for providing lustered pearling rice
JPS5348866A (en) * 1976-10-07 1978-05-02 Satake Eng Co Ltd Humidifying rice pearling method
JPS5485955A (en) * 1977-12-22 1979-07-09 Iony Kk Grain polishing device
MX147108A (es) * 1979-01-24 1982-10-06 Felipe Salete Garces Mejoras a maquina pulidora y blanqueadora de granos
US4426922A (en) * 1981-06-09 1984-01-24 Soichi Yamamoto Vertical frictionally abrasive roll rice polishing machine
JPS6041548A (ja) * 1983-08-13 1985-03-05 山本　惣一 金剛研削式精米ロ−ル
MX159213A (es) * 1984-05-14 1989-04-20 Felipe Salete Garces Ensamble de criba y rotor para maquinas descascaradoras,descortezadoras,pulidoras y blanqueadoras de granos

Also Published As

Publication number Publication date
EP0218727A1 (en) 1987-04-22
DE3690156T1 (no) 1987-05-14
WO1986005716A1 (en) 1986-10-09
AU5663186A (en) 1986-10-23
AU578358B2 (en) 1988-10-20
CN85103873A (zh) 1986-11-05
JPS61222544A (ja) 1986-10-03
CN1003981B (zh) 1989-04-26
CH664299A5 (de) 1988-02-29

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