EP0071906A2 - Appareil ménager pour la mouture de graines - Google Patents

Appareil ménager pour la mouture de graines Download PDF

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Publication number
EP0071906A2
EP0071906A2 EP82106899A EP82106899A EP0071906A2 EP 0071906 A2 EP0071906 A2 EP 0071906A2 EP 82106899 A EP82106899 A EP 82106899A EP 82106899 A EP82106899 A EP 82106899A EP 0071906 A2 EP0071906 A2 EP 0071906A2
Authority
EP
European Patent Office
Prior art keywords
grinding
mill according
grinding stone
stones
flank
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.)
Granted
Application number
EP82106899A
Other languages
German (de)
English (en)
Other versions
EP0071906B1 (fr
EP0071906A3 (en
Inventor
Hilmar A. Dr.-Ing. Burggrabe
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
Priority to AT82106899T priority Critical patent/ATE22233T1/de
Publication of EP0071906A2 publication Critical patent/EP0071906A2/fr
Publication of EP0071906A3 publication Critical patent/EP0071906A3/de
Application granted granted Critical
Publication of EP0071906B1 publication Critical patent/EP0071906B1/fr
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
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C7/00—Crushing or disintegrating by disc mills
    • B02C7/11—Details
    • B02C7/12—Shape or construction of discs
    • B02C7/13—Shape or construction of discs for grain mills

Definitions

  • the invention relates to a household flour mill with two ring-shaped grinding stones, of which at least one is connected in a rotationally fixed manner to a drive shaft and has a plurality of depressions which are evenly distributed around the shaft axis and are referred to in the mill construction as boundaries, the depth of which decreases radially outwards and which decreases through the central one Break through the breakthrough of a grinding stone of axially supplied cereal grains and insert them into a grinding zone which is formed by parallel, radially outer annular surfaces of the two grinding stones, which run perpendicular to the shaft axis around the borders.
  • Grinders with grinding stones of the type mentioned are known.
  • the grinders of well-known household grain mills have the Disadvantage that only relatively dry and low-fat cereal grains can be ground with a satisfactory result.
  • the invention is therefore based on the object of creating a household flour mill which grinds grain well, regardless of its moisture and fat content, and does not require a high-speed drive.
  • This object is achieved in that the depressions have an asymmetrical cross-sectional profile with two flanks, one of which flank, which precedes the other in the relative rotation of the grindstone, is steeper than the other flatter flank and with the flatter flank of the leading depression forms an edge that runs tangentially to the circumference of the opening of the millstone.
  • both grinding stones are arranged one above the other coaxially to a vertical axis and the upper grinding stone is provided with the central opening, so that the centrifugal forces during grinding can act undisturbed by gravity.
  • one of the two grinding stones is axially displaceable and spring-mounted, so that the minimum distance between the two grinding stones, which can be set in any known manner, automatically increases if the material to be ground contains, for example, stones that are larger than the cereal grains to be ground. In such a case, the grinder cannot be damaged.
  • the minimum distance mentioned limits the heat development during grinding and thus helps to gently process the ground material.
  • the mill mainly consists of a drive 5, which comprises an electric motor and a toothed belt transmission within a housing, a grinder 6 in the preferred embodiment, a funnel 7 for filling in the ground material and a flour outlet 8.
  • the grinder 6 has a stationary axis 10 with a vertical longitudinal axis 12, which carries two hubs 14 and 16 of a lower grinding stone 18 or upper grinding stone 20.
  • the hub 14 of the rotatable grinding stone 18 is seated in a rotationally fixed manner on a hollow drive shaft 21 which coaxially receives the axis 10, while the hub 16 of the quasi-stationary grinding stone 20 is mounted on the axis 10 for the purpose of centering.
  • the upper axis 10 with a vertical longitudinal axis 12, which carries two hubs 14 and 16 of a lower grinding stone 18 or upper grinding stone 20.
  • the hub 14 of the rotatable grinding stone 18 is seated in a rotationally fixed manner on a hollow drive shaft 21 which coaxially receives the axis 10, while the hub 16 of the quasi-stationary grinding stone 20 is mounted on the axis 10 for the purpose of centering.
  • the upper axis 10 with a vertical longitudinal axis 12, which carries two hubs 14 and 16 of a lower grinding stone 18
  • Hub 16 is pierced so that cereal grains can get out of the funnel 7 between the two grinding stones 18 and 20.
  • the lower hub is open after screws 22 have been inserted, so that grain kernels cannot fall through.
  • the width of the gap 24 between the two grinding stones 18 and 20 can be changed in accordance with the grain size by axially adjusting the upper grinding stone 20 which is rotatably mounted for this purpose.
  • the lower grinding stone 18 is axially displaceable and supported by a spring 26 which limits the axial grinding pressure at the top.
  • the lower grinding stone 18 shown in FIG. 2 with its hub 14 is largely circular-ring-shaped and consists of finely crystallized primary rock emery bonded with fired magnesite rock.
  • the lower grindstone 18 On its upper side facing the upper grindstone 20, the lower grindstone 18 is provided with five boundaries 28 evenly distributed around the shaft axis 12, the depth of which decreases radially outward and which are surrounded by a radially outer ring surface 30 which is perpendicular to the shaft axis 12 punctured level.
  • Each of the identically designed steps 28 has an asymmetrical cross-sectional profile (see FIG.
  • the trailing flank 36 of a preceding flank 28 at the leading flank 34 of the following boundary 28 ends along an edge 38, the axial projection of which on a plane perpendicularly penetrated by the shaft axis 12, for example the plane of the annular surface 30, extends tangentially to the radially inner circumference of the grinding stone 18 and the forward and trailing flanks 34 and 36 of the boundaries 28 are arranged partly in and partly below a concave conical surface, the cone axis of which is the shaft axis 12, and end radially inwardly on a flat ring edge 40.
  • the upper limit of the top of the grinding stone 18 due to the aforementioned conical surface is due to the fact that a conical turning takes place during the manufacture of the pressing tool for the grinding stone.
  • the trailing, flatter flanks 36 of the borders 28 have approximately the shape of circular sectors which form a fan around the hub 14.
  • the upper millstone 20 is designed exactly like the lower millstone 18 described, although it could be configured differently, for example with azimuthally shortened flanks 36 and without breaking the edge 38 on the inner circumference of the millstone.
  • both grinding stones can be driven at different speeds in a common direction of rotation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Disintegrating Or Milling (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP82106899A 1981-08-01 1982-07-30 Appareil ménager pour la mouture de graines Expired EP0071906B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82106899T ATE22233T1 (de) 1981-08-01 1982-07-30 Haushalts-getreidemuehle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3130519 1981-08-01
DE19813130519 DE3130519A1 (de) 1981-08-01 1981-08-01 Mahlwerk einer haushalts-getreidemuehle

Publications (3)

Publication Number Publication Date
EP0071906A2 true EP0071906A2 (fr) 1983-02-16
EP0071906A3 EP0071906A3 (en) 1983-10-26
EP0071906B1 EP0071906B1 (fr) 1986-09-17

Family

ID=6138364

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82106899A Expired EP0071906B1 (fr) 1981-08-01 1982-07-30 Appareil ménager pour la mouture de graines

Country Status (4)

Country Link
US (1) US4502643A (fr)
EP (1) EP0071906B1 (fr)
AT (1) ATE22233T1 (fr)
DE (2) DE3130519A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503010A1 (de) * 1985-01-30 1986-07-31 Reiff, Peter, 7614 Gengenbach Kornmuehle, insbesondere fuer den haushalt
EP0122402A3 (fr) * 1983-02-23 1986-11-12 Heinrich Gerk Concasseur de grains
DE3541389A1 (de) * 1985-11-22 1987-05-27 Planeta Hausgeraete Kuechenmaschine zur mechanischen zerkleinerung von nahrungsmitteln

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5975440A (en) * 1995-04-21 1999-11-02 Watson; William Ferguson Mixing
FI98148C (fi) * 1995-06-02 1997-04-25 Tomas Bjoerkqvist Menetelmä ja laite puun mekaaniseksi kuiduttamiseksi
US5673862C1 (en) * 1996-04-09 2001-11-06 New River Mills L L C Grain mill
ITFI20060281A1 (it) * 2006-11-14 2008-05-15 Saeco Ipr Ltd Organi di macinazione per un dispositivo macina caffe' ed una macchina da caffe' comprendente tale dispositivo.
US7874505B1 (en) * 2007-08-31 2011-01-25 Food Equipment Technologies Company, Inc. Food grinder with electronically adjustable grind settings, tooless disassembly
DE102009047818A1 (de) * 2009-09-30 2011-04-07 Gharagozlu, Parviz, Bucalemu Verfahren und Vorrichtung zur Zerkleinerung von Erzmaterial
EP2764807A1 (fr) * 2013-02-12 2014-08-13 Jura Elektroapparate AG Broyeur
KR101692998B1 (ko) * 2015-04-06 2017-01-05 문인술 동력장치에 의하여 구동되는 3단 맷돌
EP3939438A1 (fr) * 2016-11-10 2022-01-19 Yanmar Power Technology Co., Ltd. Système et procédé de fabrication de gel de riz
KR102107944B1 (ko) * 2019-10-07 2020-05-07 차기정 커피 원두 분쇄용 맷돌
ES2908647T3 (es) * 2019-10-10 2022-05-03 Hemro Int Ag Molinillo de café

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2537570A (en) * 1951-01-09 Grinding disk
US2119768A (en) * 1938-06-07 Grinding plate
US7630A (en) * 1850-09-10 Paint-mill
DE240737C (fr) *
DE368126C (de) * 1923-02-02 Rudolf Beck Mahlsteine fuer Horizontal- und Vertikalmuehlen
GB643249A (fr) * 1900-01-01
US891050A (en) * 1905-12-04 1908-06-16 John L Durham Millstone.
US1670714A (en) * 1924-01-04 1928-05-22 James A Craig Attrition grinder
US1556323A (en) * 1925-06-04 1925-10-06 Garza Pablo Gongales Mill disk
US1969899A (en) * 1933-02-15 1934-08-14 Hamilton Beach Mfg Company Coffee grinder attachment
US2478937A (en) * 1946-02-28 1949-08-16 Niethamer Julius Horizontal-disk pulverizer
DE1896841U (de) * 1963-11-15 1964-07-16 Georg Johann Schmidt Mahlstein.
US3688996A (en) * 1971-01-25 1972-09-05 Johnnie Kuest Flour mill
US3761027A (en) * 1971-03-15 1973-09-25 F Mendoza Disk mill
DE2202798A1 (de) * 1972-01-21 1973-08-02 Johann Georg Dr Med Schnitzer Mahlsteinpaar fuer getreidemuehlen
DE2444152C2 (de) * 1974-09-16 1982-10-14 Johann Georg Dr.med.dent. 7742 St Georgen Schnitzer Mahlsteinpaar für eine Getreidemühle
DE2436482C3 (de) * 1974-07-29 1981-07-30 Gebr. Eizenhöfer oHG Metallwarenfabrik, 8752 Kleiostheim Motorbetätigte Mühle für den Haushalt zur Zerkleinerung von trockenem, körnigem Mahlgut, insbesondere Getreide
DE2641395A1 (de) * 1976-04-20 1977-11-03 Toshio Yagi Abfallbeseitigungsvorrichtung
US4039153A (en) * 1976-04-26 1977-08-02 Hoffman Douglas L Grinding mill
US4057194A (en) * 1976-08-23 1977-11-08 Orton Roger W Portable flour mill
DE8122817U1 (de) * 1981-08-04 1982-02-04 Burggrabe, A.-Hilmar, Dr.-Ing., 7031 Aidlingen Mahlwerk einer haushalts-getreidemuehle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0122402A3 (fr) * 1983-02-23 1986-11-12 Heinrich Gerk Concasseur de grains
DE3503010A1 (de) * 1985-01-30 1986-07-31 Reiff, Peter, 7614 Gengenbach Kornmuehle, insbesondere fuer den haushalt
DE3541389A1 (de) * 1985-11-22 1987-05-27 Planeta Hausgeraete Kuechenmaschine zur mechanischen zerkleinerung von nahrungsmitteln

Also Published As

Publication number Publication date
EP0071906B1 (fr) 1986-09-17
DE3273354D1 (en) 1986-10-23
US4502643A (en) 1985-03-05
DE3130519A1 (de) 1983-02-17
EP0071906A3 (en) 1983-10-26
ATE22233T1 (de) 1986-10-15

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