EP1201308A1 - Cereal milling device - Google Patents

Cereal milling device Download PDF

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Publication number
EP1201308A1
EP1201308A1 EP01124750A EP01124750A EP1201308A1 EP 1201308 A1 EP1201308 A1 EP 1201308A1 EP 01124750 A EP01124750 A EP 01124750A EP 01124750 A EP01124750 A EP 01124750A EP 1201308 A1 EP1201308 A1 EP 1201308A1
Authority
EP
European Patent Office
Prior art keywords
footing
wheels
frame
support
rolls
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.)
Withdrawn
Application number
EP01124750A
Other languages
German (de)
French (fr)
Inventor
Maurizio Fiorini
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.)
Ocrim SpA
Original Assignee
Ocrim SpA
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 Ocrim SpA filed Critical Ocrim SpA
Publication of EP1201308A1 publication Critical patent/EP1201308A1/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/28Details
    • B02C4/32Adjusting, applying pressure to, or controlling the distance between, milling members
    • B02C4/38Adjusting, applying pressure to, or controlling the distance between, milling members in grain mills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/28Details

Definitions

  • the present invention relates to a cereal milling device.
  • the invention relates to a mill which uses two milling rolls, a movable one and a fixed one.
  • the fixed roll is motorized by means of a driving pulley.
  • the footing that supports the rolls rests on a frame of the mill.
  • the footing supports the rolls by means of a fixed support, which is rigidly coupled to the footing and supports the fixed roll, and by means of a movable support, which is generally pivoted to the footing and supports the movable roll.
  • a second footing, a second fixed support and a second movable support are used in order to support the other end of the rolls.
  • the set constituted by two footings, two fixed supports, two movable supports and the means for adjusting the distance between the rolls forms a unit which can be inserted in, and extracted from, the frame of the mill without having to disassemble the various parts that form the unit.
  • This is an important characteristic, since it is possible to set up the unit before insertion in the mill, allowing to perform the main adjustments and checks in the workshop instead of directly on the milling plant. Moreover, all the roll replacement operations are speeded up, increasing the productivity of the plant.
  • the aim of the present invention is to overcome the above drawbacks with a cereal milling device which includes: two milling rolls, of which one is movable and the other one is fixed; a footing for the rolls, which rests on a frame of the device; a fixed support, which is rigidly coupled to the footing in order to support the fixed roll; a movable support, which is supported by the footing in order to support the movable roll; a sliding means for sliding the footing on the frame, so as to allow simultaneous extraction of the footing, the supports and the rolls from the frame.
  • the device according to the invention has two milling rolls 10 and 11: the roll 10 is movable and the roll 11 is fixed.
  • the footing 12 supports the rolls 10 and 11 and rests on the frame 13 of the device.
  • the fixed support 14 is rigidly coupled to the footing 12 and supports the fixed roll 11.
  • the movable support 15 is supported by the footing 12 by means of a hinge 16 and supports the movable roll 10.
  • the structure is symmetrical on the two sides of the rolls, so that a footing 12, a fixed support 14 and a movable support 15 are present on each side.
  • a sliding means 17, 18 is provided in order to make the footing 12 slide on the frame 13, so as to allow simultaneous extraction of the footing 12, of the supports 14 and 15 and of the rolls 10 and 11 from the frame 13.
  • the sliding means is formed by two guides 17 which are engaged by wheels 18. Accordingly, each footing 12 has a guide 17 and wheels 18.
  • the wheels 18 are formed by bearings. In particular, the wheels 18 are supported by the footing 12 and the guides 17 are supported by the frame 13.
  • the lifting means 19 allows to lift the footing 12 with respect to the frame 13.
  • the lifting means is formed by the wheels 18 and by a means 19 for vertically moving a plurality of axles of the wheels 18.
  • the wheels are supported by the eccentric members 19.
  • the lifting means is formed by a plurality of wheels made of elastomeric material and by a compression means for compressing the wheels, pushing the footing 12 against the frame 13 so that when the compression means is released the wheels can freely lift, by elastic thrust, the footing 12.
  • the compression means can be formed for example by bolts which pass through holes formed in the footing 12 and thus grip the frame 13.
  • an automatic locking means shown with particular reference to Figures 5 and 6, which allow to lock and release the position of the footing 12 on the frame 13.
  • the locking means includes two levers 21 which can be actuated remotely, preferably by means of a pneumatic piston 22.
  • the sliding means further includes a carriage 23 which is as high as the frame 13, so that the footing 12 can slide on the carriage 23.
  • the guides 24 provided on the carriage form an extension of the guides 17 that are present on the frame. In particular, the guides 17 and the guides 24 are at the same height.
  • the invention has several advantages. In particular, it is possible to easily extract from the milling device according to the invention the unit formed by two footings 12, two fixed supports 14, two movable supports 15 and two rolls 10 and 11.
  • the footing 12 can be lifted and then extracted simply by releasing the levers 21 and using wheels 18 made of elastomeric material.
  • the invention further allows an important increase in the reliability of the procedure for replacing the roll unit, since in practice it is very difficult, if not impossible, to damage the device during replacement because there are no suspended loads as in the prior art.

Abstract

A cereal milling device, comprising: two milling rolls (10,11), of which one (10) is movable and the other one (11) is fixed; a footing (12) for the rolls, which rests on a frame (13) of the device; a fixed support (14), which is rigidly coupled to the footing (12) in order to support the fixed roll (11); a movable support (15), which is supported by the footing (12) in order to support the movable (10) roll; an extraction means which allows the simultaneous extraction of the footing, the supports and the rolls.

Description

  • The present invention relates to a cereal milling device.
  • More particularly, the invention relates to a mill which uses two milling rolls, a movable one and a fixed one. The fixed roll is motorized by means of a driving pulley. The footing that supports the rolls rests on a frame of the mill. The footing supports the rolls by means of a fixed support, which is rigidly coupled to the footing and supports the fixed roll, and by means of a movable support, which is generally pivoted to the footing and supports the movable roll. In practice, a second footing, a second fixed support and a second movable support are used in order to support the other end of the rolls.
  • The set constituted by two footings, two fixed supports, two movable supports and the means for adjusting the distance between the rolls forms a unit which can be inserted in, and extracted from, the frame of the mill without having to disassemble the various parts that form the unit. This is an important characteristic, since it is possible to set up the unit before insertion in the mill, allowing to perform the main adjustments and checks in the workshop instead of directly on the milling plant. Moreover, all the roll replacement operations are speeded up, increasing the productivity of the plant.
  • The above is the main field of industrial utilization of the invention but is not a limitation thereof, since the invention can be used in equivalent fields.
  • Devices of this type are known and are disclosed for example in US patents 4,101,083, 4,225,093, 4,339,083 and 5,673,864. These conventional devices, however, are not free from drawbacks, since the above-cited unit is very heavy, for example approximately one thousand kilograms, and its handling requires an adequate means which is generally constituted by an electrohydraulic structure which lifts the unit and then extracts it. This structure is significantly expensive and the entire operation is complicated and delicate because of the risk of damaging parts of the device; accordingly, it is difficult to replace the unit with the swiftness that would be desirable.
  • The aim of the present invention is to overcome the above drawbacks with a cereal milling device which includes: two milling rolls, of which one is movable and the other one is fixed; a footing for the rolls, which rests on a frame of the device; a fixed support, which is rigidly coupled to the footing in order to support the fixed roll; a movable support, which is supported by the footing in order to support the movable roll; a sliding means for sliding the footing on the frame, so as to allow simultaneous extraction of the footing, the supports and the rolls from the frame.
  • The invention will become better apparent with reference to the description of an embodiment thereof, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
  • Figure 1 is a schematic perspective view of the device according to the invention;
  • Figure 2 is a partially sectional side view of the device of Figure 1;
  • Figure 3 is a sectional front view, taken along the line III-III, of a detail of the device of Figure 2;
  • Figure 4 is a sectional front view, taken along the line IV-IV of Figure 2;
  • Figure 5 is a partially sectional side view of a detail of the device of Figure 1;
  • Figure 6 is a partially sectional front view of a detail of the device of Figure 5;
  • Figure 7 is a partially sectional front view of a detail of the device of Figure 2 in a fixed position;
  • Figure 8 is a partially sectional front view of a detail of Figure 7 in a sliding position; and
  • Figure 9 is a side view of a detail of the device of Figure 2.
  • With reference to Figures 1 to 9, the device according to the invention has two milling rolls 10 and 11: the roll 10 is movable and the roll 11 is fixed. The footing 12 supports the rolls 10 and 11 and rests on the frame 13 of the device. The fixed support 14 is rigidly coupled to the footing 12 and supports the fixed roll 11. The movable support 15 is supported by the footing 12 by means of a hinge 16 and supports the movable roll 10. The structure is symmetrical on the two sides of the rolls, so that a footing 12, a fixed support 14 and a movable support 15 are present on each side.
  • A sliding means 17, 18 is provided in order to make the footing 12 slide on the frame 13, so as to allow simultaneous extraction of the footing 12, of the supports 14 and 15 and of the rolls 10 and 11 from the frame 13. The sliding means is formed by two guides 17 which are engaged by wheels 18. Accordingly, each footing 12 has a guide 17 and wheels 18. In the illustrated embodiment, the wheels 18 are formed by bearings. In particular, the wheels 18 are supported by the footing 12 and the guides 17 are supported by the frame 13.
  • The lifting means 19 allows to lift the footing 12 with respect to the frame 13. In particular, the lifting means is formed by the wheels 18 and by a means 19 for vertically moving a plurality of axles of the wheels 18. In particular, the wheels are supported by the eccentric members 19. By turning the shafts of the eccentric members 19 by means of the levers 20 it is possible to lift the footing 12 with respect to their support on the frame 13.
  • As an alternative, the lifting means is formed by a plurality of wheels made of elastomeric material and by a compression means for compressing the wheels, pushing the footing 12 against the frame 13 so that when the compression means is released the wheels can freely lift, by elastic thrust, the footing 12. The compression means can be formed for example by bolts which pass through holes formed in the footing 12 and thus grip the frame 13. As an alternative, it is possible to use an automatic locking means shown with particular reference to Figures 5 and 6, which allow to lock and release the position of the footing 12 on the frame 13. In particular, the locking means includes two levers 21 which can be actuated remotely, preferably by means of a pneumatic piston 22.
  • The sliding means further includes a carriage 23 which is as high as the frame 13, so that the footing 12 can slide on the carriage 23. The guides 24 provided on the carriage form an extension of the guides 17 that are present on the frame. In particular, the guides 17 and the guides 24 are at the same height.
  • The invention has several advantages. In particular, it is possible to easily extract from the milling device according to the invention the unit formed by two footings 12, two fixed supports 14, two movable supports 15 and two rolls 10 and 11.
  • It is in fact sufficient to lift the footing by turning the eccentric members 19 and then slide it on the guides 17 up to the guides 24 of the carriage 23. This operation can be performed very quickly without requiring any other special equipment.
  • As an alternative, the footing 12 can be lifted and then extracted simply by releasing the levers 21 and using wheels 18 made of elastomeric material.
  • In any case, the time required for the replacement of one unit with another is reduced substantially, with important advantages for the productivity of the plant.
  • Surprisingly, this is achieved with a means which is simpler and far less costly than the electrohydraulic systems used by the prior art.
  • The invention further allows an important increase in the reliability of the procedure for replacing the roll unit, since in practice it is very difficult, if not impossible, to damage the device during replacement because there are no suspended loads as in the prior art.
  • The invention is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept. Thus, for example, the sliding and lifting means can be provided in many different manners.

Claims (13)

  1. A cereal milling device, comprising: two milling rolls, of which one is movable and the other is fixed; a footing for said rolls, which rests on a frame of said device; a fixed support, which is rigidly coupled to said footing in order to support said fixed roll; a movable support, which is supported by said footing in order to support said movable roll; a sliding means for sliding said footing on said frame, so as to allow simultaneous extraction of said footing, said supports and said rolls from said frame.
  2. The device according to claim 1, wherein said sliding means comprises two guides.
  3. The device according to claim 2, wherein said guides are engaged by wheels.
  4. The device according to claim 3, wherein said wheels are formed by bearings.
  5. The device according to claim 3, wherein said wheels are made of elastomeric material.
  6. The device according to at least one of the preceding claims, wherein said wheels are supported by said footing and said guides are supported by said frame.
  7. The device according to claim 1, comprising a lifting means for lifting said footing with respect to said frame.
  8. The device according to at least one of the preceding claims, wherein said lifting means comprises a plurality of wheels and a means for vertically moving a plurality of axles of said wheels, said means being preferably formed by a plurality of eccentric members.
  9. The device according to at least one of the preceding claims, wherein said lifting means comprises a plurality of wheels made of elastomeric material and a compression means for compressing said wheels, pushing said footing against said frame so that by releasing said compression means said wheels can freely lift said footing by elastic thrust.
  10. The device according to at least one of the preceding claims, comprising a locking means for locking and releasing the position of said footing on said frame.
  11. The device according to claim 10, wherein said locking means comprises at least one lever which can be actuated remotely, preferably by means of a pneumatic piston.
  12. The device according to at least one of the preceding claims, wherein said sliding means comprises a carriage which has the same height as said frame, so that said footing can slide on said carriage, said guides preferably extending on said carriage.
  13. Every new characteristic or new combination of characteristics described or illustrated herein.
EP01124750A 2000-10-25 2001-10-17 Cereal milling device Withdrawn EP1201308A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI002307 2000-10-25
IT2000MI002307 IT1319060B1 (en) 2000-10-25 2000-10-25 CEREAL GRINDING DEVICE

Publications (1)

Publication Number Publication Date
EP1201308A1 true EP1201308A1 (en) 2002-05-02

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ID=11446032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01124750A Withdrawn EP1201308A1 (en) 2000-10-25 2001-10-17 Cereal milling device

Country Status (2)

Country Link
EP (1) EP1201308A1 (en)
IT (1) IT1319060B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007088029A1 (en) * 2006-01-31 2007-08-09 Khd Humboldt Wedag Gmbh Roller press, in particular for interparticle comminution
WO2009011667A1 (en) 2007-07-16 2009-01-22 Yukselis Makina Sanayi Ve Ticaret Anonim Sirketi Eccentric bush moment arm bearing assembly
WO2010036194A1 (en) * 2008-09-24 2010-04-01 Metso Paper, Inc. An apparatus for washing and/or dewatering pulp
WO2010036192A1 (en) * 2008-09-24 2010-04-01 Metso Paper, Inc. An apparatus for washing and/or dewatering pulp
KR101006909B1 (en) 2010-08-26 2011-01-13 최문영 Pulverization equipment of grain with roller supporting part
RU2464170C2 (en) * 2007-07-09 2012-10-20 Полизиус Аг Roll press with displacing head elements
EP3575001A1 (en) 2018-05-28 2019-12-04 Bühler AG Roller packages for milling devices, milling devices and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101083A (en) 1976-03-13 1978-07-18 Buhler-Miag Gmbh Housing for roll stands for grinding cereals or similar material
US4225093A (en) 1979-02-21 1980-09-30 Buehler-Miag Gmbh Rolling mill for milling cereals and similar material
US4339083A (en) 1976-07-16 1982-07-13 Gebrueder Buehler Ag Apparatus for the grinding of cereal
US5018960A (en) * 1990-01-12 1991-05-28 Wenger Manufacturing, Inc. Flaking roll apparatus
US5673864A (en) 1994-10-11 1997-10-07 Satake Uk Limited Cereal milling machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101083A (en) 1976-03-13 1978-07-18 Buhler-Miag Gmbh Housing for roll stands for grinding cereals or similar material
US4339083A (en) 1976-07-16 1982-07-13 Gebrueder Buehler Ag Apparatus for the grinding of cereal
US4225093A (en) 1979-02-21 1980-09-30 Buehler-Miag Gmbh Rolling mill for milling cereals and similar material
US5018960A (en) * 1990-01-12 1991-05-28 Wenger Manufacturing, Inc. Flaking roll apparatus
US5673864A (en) 1994-10-11 1997-10-07 Satake Uk Limited Cereal milling machine

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007088029A1 (en) * 2006-01-31 2007-08-09 Khd Humboldt Wedag Gmbh Roller press, in particular for interparticle comminution
US7896272B2 (en) 2006-01-31 2011-03-01 Khd Humboldt Wedag Gmbh Roller press, in particular for interparticle comminution
RU2464170C2 (en) * 2007-07-09 2012-10-20 Полизиус Аг Roll press with displacing head elements
WO2009011667A1 (en) 2007-07-16 2009-01-22 Yukselis Makina Sanayi Ve Ticaret Anonim Sirketi Eccentric bush moment arm bearing assembly
EP2500097A2 (en) 2007-07-16 2012-09-19 Yukselis Makina Sanayi Ve Ticaret Anonim Sirketi Eccentric bush moment arm bearing assembly
EP2500097A3 (en) * 2007-07-16 2015-01-07 Yukselis Makina Sanayi Ve Ticaret Anonim Sirketi Eccentric bush moment arm bearing assembly
WO2010036194A1 (en) * 2008-09-24 2010-04-01 Metso Paper, Inc. An apparatus for washing and/or dewatering pulp
WO2010036192A1 (en) * 2008-09-24 2010-04-01 Metso Paper, Inc. An apparatus for washing and/or dewatering pulp
CN102165115B (en) * 2008-09-24 2013-07-10 美佐纸业股份有限公司 An apparatus for washing and/or dewatering pulp
KR101006909B1 (en) 2010-08-26 2011-01-13 최문영 Pulverization equipment of grain with roller supporting part
EP3597300A1 (en) 2018-05-28 2020-01-22 Bühler AG Rolling packets for milling devices, milling devices and method
RU2754042C1 (en) * 2018-05-28 2021-08-25 Бюлер Аг Roller units for grinding devices, grinding devices and methods
EP3575001A1 (en) 2018-05-28 2019-12-04 Bühler AG Roller packages for milling devices, milling devices and method
EP3597301A1 (en) 2018-05-28 2020-01-22 Bühler AG Rolling packets for milling devices, milling devices and method
WO2019229014A3 (en) * 2018-05-28 2020-01-23 Bühler AG Roller groups for grinding devices, grinding devices, and methods
CN112423888A (en) * 2018-05-28 2021-02-26 布勒股份公司 Roller assembly for a milling apparatus, milling apparatus and method
JP2021519692A (en) * 2018-05-28 2021-08-12 ビューラー・アクチエンゲゼルシャフトBuehler AG Roller assembly, crusher, and method for crusher
WO2019229014A2 (en) 2018-05-28 2019-12-05 Bühler AG Roller groups for grinding devices, grinding devices, and methods
JP2022017488A (en) * 2018-05-28 2022-01-25 ビューラー・アクチエンゲゼルシャフト Roller assembly for grinding device, grinding device, and method
JP2022017487A (en) * 2018-05-28 2022-01-25 ビューラー・アクチエンゲゼルシャフト Roller assembly for grinding device, grinding device, and method
US11266993B2 (en) 2018-05-28 2022-03-08 Bühler AG Roller groups for grinding devices, grinding devices, and methods
JP7147034B2 (en) 2018-05-28 2022-10-04 ビューラー・アクチエンゲゼルシャフト Roller assembly, crusher, and method for crusher
AU2022200349B2 (en) * 2018-05-28 2023-05-11 Bühler AG Roller groups for grinding devices, grinding devices, and methods
US11925940B2 (en) 2018-05-28 2024-03-12 Bühler AG Roller groups for grinding devices, grinding devices, and methods

Also Published As

Publication number Publication date
IT1319060B1 (en) 2003-09-23
ITMI20002307A1 (en) 2002-04-25

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