EP0425626B1 - Broyeur a rouleaux - Google Patents

Broyeur a rouleaux Download PDF

Info

Publication number
EP0425626B1
EP0425626B1 EP90907016A EP90907016A EP0425626B1 EP 0425626 B1 EP0425626 B1 EP 0425626B1 EP 90907016 A EP90907016 A EP 90907016A EP 90907016 A EP90907016 A EP 90907016A EP 0425626 B1 EP0425626 B1 EP 0425626B1
Authority
EP
European Patent Office
Prior art keywords
pulley
roller
shaft
teeth
grooves
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 - Lifetime
Application number
EP90907016A
Other languages
German (de)
English (en)
Other versions
EP0425626A1 (fr
Inventor
Ferruccio Ginelli
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11168760&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0425626(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ocrim SpA filed Critical Ocrim SpA
Priority to AT90907016T priority Critical patent/ATE96342T1/de
Publication of EP0425626A1 publication Critical patent/EP0425626A1/fr
Application granted granted Critical
Publication of EP0425626B1 publication Critical patent/EP0425626B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/42—Driving mechanisms; Roller speed control

Definitions

  • the present invention relates to a roller mill device for the grinding or refining of granular agricultural food materials.
  • a roller mill which uses at least one pair of fluted or smooth milling rollers which rotate at mutually different angular speeds.
  • Roller mills which use one or two pairs of rollers, generally two pairs, in which the rollers rotate in opposite directions at mutually different speeds, are well-known.
  • the use of different speeds between the two rollers has in fact long ago been found to be particularly effective in the effect of grinding or refining cereals and the like.
  • a pair of gears each supported rigidly to the shaft of one of the two rollers, is generally used to motorize a pair of grinding rollers and to simultaneously set their relative speed.
  • the pair of rollers wears down with use, so that in order to keep constant the grinding gap between the surfaces of the two rollers the distance of the axes of the rollers must be adjusted. In practice the axes of the shafts of the rollers must be moved progressively closer as the surfaces of the rollers wear.
  • the center distance between the grinding rollers is not constant but decreases progressively entails a particularly configuration of the pair of gears supported by the shafts of the rollers in order to avoid the need to change the gears every time the center distance between the rollers is to be adjusted.
  • the pair of gears used has particularly long teeth so that the coupling between the gears may be "loose” on the new mill, whereas the coupling between the gears becomes increasingly “tighter” and the teeth of the two gears interpenetrate to an increasing depth as the center distance between the rollers decreases.
  • gears with the particular described configuration are extremely noisy and contribute to the forming of hearing damages (hypacusia) and often raise noise levels above the values set by specific laws for operators assigned to these machines.
  • Said gears furthermore require adequate lubrication, are subject to rapid wear and are difficult to find, when they are to be replaced, due to their particular configuration.
  • the belt is kept under tension by two other transmission pulleys.
  • the assembly constituted by the belt and the total of four pulleys is so bulky that it cannot be contained in the normal useful space of a normal mill, so that this solution is not likely to enjoy actual industrial development.
  • the belt is kept under tension by a single transmission pulley.
  • This solution does have small and practically acceptable dimensions, but in practice only a small part of the useful power of the mill can be transmitted, and the mill therefore operates at minimum capacity. If the transmitted power is increased to the values normally used with gear transmission, the belt wears out rapidly and burns.
  • the roller which rotates faster is driven directly by the motive power and its shaft supports a first pulley which has a set of teeth with grooves which are parallel to the axis of the roller's shaft.
  • the shaft of the roller which rotates slower supports a second pulley which has a set of teeth with grooves which are perpendicular to the axis of the roller's shaft.
  • the aim of the present invention is to overcome the above disadvantages by providing a roller mill which does not entail the presence of noisy gears and allows to transmit all the useful power to the mill without using lubricants.
  • Another object of the invention is to provide a mill wherein maintenance, adjustment of the center distance between the rollers and replacement of spare parts are particularly economical and simple.
  • the device which comprises: at least one pair of fluted or smooth milling rollers which rotate at mutually different speeds, the roller which rotates faster being driven directly by the motive power; drive means kept under tension by a third transmission pulley (20) which is adjustable in position; a shaft of the roller which rotates slower supports a second pulley which has a set of teeth with grooves parallel to the axis of the shaft of the roller; characterized in that: a shaft of said roller which rotates faster supports a first pulley which has a set of teeth with grooves which are perpendicular to the axis of the shaft of the roller; said drive means being formed by an internally and externally profiled belt matching the profiles provided on said pulleys.
  • the device according to the invention comprises a pair of milling rollers and preferably two pairs of fluted or smooth rollers which rotate at mutually different speeds.
  • the rollers are not directly visible in the figures, but the shafts 11, 12 of the first pair of rollers and the shafts 13, 14 of the second pair of rollers are shown.
  • the roller supported by the shaft 12, which rotates faster is driven directly by the motive power by means of a pulley or a gear, not illustrated in the drawing.
  • the shaft of the roller which rotates faster supports a first pulley 15 which has a set of teeth with grooves 16 which are perpendicular to the axis of the shaft 12 of the roller.
  • the shaft 11 of the roller which rotates slower supports a second pulley 17 which has a set of teeth with grooves 18 which are parallel to the axis of the shaft 11 of the roller.
  • the belt 19 which is stretched between the pulleys 15 and 17 is kept under tension by a third transmission pulley 20.
  • the position of the third pulley 20 with respect to the position of the other two pulleys 15 and 17 can be adjusted so as to easily control the tension of the belt 19.
  • the third pulley 20 has a set of teeth with grooves 21 perpendicular to its axis 22.
  • the center distance between the first pulley 15 and the second pulley 17 is comprised between 210 mm and 310 mm.
  • the center distance between the second pulley 17 and the third pulley 20 is comprised between 230 mm and 300 mm.
  • the ratio between the rpm rate of the first pulley 15 and the rpm rate of the second pulley 17 is comprised between 1.1 and 3.5.
  • the belt 19 has a set of teeth which matches the grooves of the pulleys which it is to engage; in particular, once the belt 19 is mounted on the pulleys 15, 17 and 20, the internal set of teeth is perpendicular to the axes of the pulleys, whereas the outer set of teeth is parallel to the axes of the pulleys.
  • the device according to the invention allows to achieve the intended aim and objects and in particular allows quiet operation and the transmission of all the useful power of the mill for long periods of time without requiring particular maintenance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Massaging Devices (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Ceramic Capacitors (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Claims (5)

  1. Dispositif de broyeur à cylindres, destiné au broyage ou au raffinage de matières alimentaires agricoles granulaires, comprenant :
       au moins une paire de cylindres de broyage cannelés ou lisses qui tournent à des vitesses différentes entre elles, le cylindre qui tourne le plus vite étant entraîné directement par la puissance motrice ;
       des moyens de commande (19) maintenus sous tension par une troisième poulie de transmission (20) qui peut être ajustée dans sa position ;
       un arbre (11) du cylindre qui tourne plus lentement supporte une deuxième poulie (17) qui comporte une série de dents avec des gorges (18) parallèles à l'axe de l'arbre (11) du cylindre ;
       caractérisé en ce que
       un arbre (12) du cylindre qui tourne le plus vite supporte une première poulie (15) qui présente une série de dents et avec des gorges (16) qui sont perpendiculaires à l'axe de l'arbre (12) du cylindre ;
       les moyens d'entraînement étant constitués par une courroie (19) présentant un profil interne et externe qui correspond au profil ménagé sur les pouliee (20, 17, 15).
  2. Dispositif selon la revendication 1, caractérisé en ce que la troisième poulie (20) comporte une série de dents avec des gorges (21) perpendiculaires à l'axe (22) de la troisième poulie.
  3. Dispositif selon la revendication 1, caractérisé en ce que l'entr'axe entre la première poulie (15) et la deuxième poulie (17) se situe entre 210 mm et 310 mm.
  4. Dispositif selon la revendication 1, caractérisé en ce que l'entr'axe entre la deuxième poulie (17) et la troisième poulie (20) se situe entre 230 mm et 300 mm.
  5. Dispositif selon la revendication 1, caractérisé en ce que le rapport entre le nombre de tours/minute de la première poulie (15) et le nombre de tours/minute de la deuxième poulie (17) se situe entre 1,1 et 3,5 et de préférence entre 1,1 et 2,65.
EP90907016A 1989-05-19 1990-05-12 Broyeur a rouleaux Expired - Lifetime EP0425626B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90907016T ATE96342T1 (de) 1989-05-19 1990-05-12 Walzenmuehle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8920558A IT1230778B (it) 1989-05-19 1989-05-19 Dispositivo a laminatoio
IT2055889 1989-05-19

Publications (2)

Publication Number Publication Date
EP0425626A1 EP0425626A1 (fr) 1991-05-08
EP0425626B1 true EP0425626B1 (fr) 1993-10-27

Family

ID=11168760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90907016A Expired - Lifetime EP0425626B1 (fr) 1989-05-19 1990-05-12 Broyeur a rouleaux

Country Status (8)

Country Link
EP (1) EP0425626B1 (fr)
AT (1) ATE96342T1 (fr)
AU (1) AU5645990A (fr)
DE (1) DE69004213T2 (fr)
DK (1) DK0425626T3 (fr)
ES (1) ES2048491T3 (fr)
IT (1) IT1230778B (fr)
WO (1) WO1990014165A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029430A1 (fr) 1997-12-05 1999-06-17 Bühler AG Moulin a cylindres

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4692794B2 (ja) * 2000-06-07 2011-06-01 株式会社サタケ 脱ぷ装置
EP3380245B1 (fr) * 2015-11-26 2022-08-17 Omas Srl Broyeur à rouleaux avec entraînement direct
ITUB20156031A1 (it) * 2015-11-30 2017-05-30 Omas Srl Laminatoio con motori a trascinamento diretto migliorato e metodo di funzionamento del laminatoio
ES2755484T3 (es) 2017-05-09 2020-04-22 Buehler Ag Molino de rodillos para piensos y alimentos con un engranaje
IT202100012893A1 (it) * 2021-05-19 2022-11-19 V Project S R L Macchina per la macinazione di prodotti alimentari
TR2021013915A2 (tr) * 2021-09-04 2021-09-21 Degirmencioglu Makina Sanayi Ve Ticaret Ltd Sirketi Tahıl öğütme makinesi

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB541583A (en) * 1940-07-29 1941-12-02 Thomas Robinson & Son Ltd Improvements relating to the drives of the rolls of roller mills
GB542044A (en) * 1940-07-29 1941-12-23 Thomas Robinson & Son Ltd Improvements relating to roller mills for cereal grain
US3151491A (en) * 1958-08-04 1964-10-06 Us Rubber Co Belt and belt-pulley drive
IT8320736V0 (it) * 1983-02-08 1983-02-08 Berga Cereali Spa Laminatoio per macinazione di cereali con rulli ad interasse variabile.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029430A1 (fr) 1997-12-05 1999-06-17 Bühler AG Moulin a cylindres
US6347755B1 (en) 1997-12-05 2002-02-19 Buhler Ag Roller mill

Also Published As

Publication number Publication date
DK0425626T3 (da) 1994-03-07
DE69004213D1 (de) 1993-12-02
ES2048491T3 (es) 1994-03-16
DE69004213T2 (de) 1994-05-05
WO1990014165A1 (fr) 1990-11-29
EP0425626A1 (fr) 1991-05-08
IT1230778B (it) 1991-10-29
IT8920558A0 (it) 1989-05-19
ATE96342T1 (de) 1993-11-15
AU5645990A (en) 1990-12-18

Similar Documents

Publication Publication Date Title
AU731304B2 (en) Grinding machine
EP0425626B1 (fr) Broyeur a rouleaux
US3869759A (en) Drive means for textile sliver drafting assembly
JPS5852721B2 (ja) 圧延機
KR100549807B1 (ko) 롤러 제분기
US4590712A (en) Vertical spindle duplex head for a grinder
ES2081688T3 (es) Laminador con bloque de acabado capaz de conformar a distintas velocidades.
GB2115722A (en) A rollermill
US3481221A (en) Variable speed transmission
US20200156080A1 (en) Transmission for an animal feed and food roller mill, and animal feed and food roller mill having said transmission
CA1095293A (fr) Entrainement a un seul moteur pour rouleaux d'alimentation
US2419392A (en) Drive unit
US3028633A (en) Machine for processing wood pulp and the like
SU1637875A1 (ru) Вальцовый станок дл измельчени зерна
JP2548504Y2 (ja) シリンダ型カッターにおける切断長さの調節装置
ES8608287A1 (es) Transmision de mando de los cilindros en refinadoras para chocolate
SU407614A1 (ru) Стан поперечной прокатки изделий переменного
JPS5919735Y2 (ja) 練条機における伝動装置
RU2060824C1 (ru) Машина для шелушения зерна крупяных культур
RU8635U1 (ru) Механизм межвальцевой передачи двухвальцевого станка
DK580788A (da) Fremfoeringsapparat til fremfoering af et pladeformet materiale
DE102006031620A1 (de) Walzenstuhl
DE69513137D1 (de) Walzeinheit
JPH0415342A (ja) Ｖベルト式無段変速機
Noe et al. Roll Gap Adjustment in a Roll Stand

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19901217

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19920601

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19931027

REF Corresponds to:

Ref document number: 96342

Country of ref document: AT

Date of ref document: 19931115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 69004213

Country of ref document: DE

Date of ref document: 19931202

ET Fr: translation filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2048491

Country of ref document: ES

Kind code of ref document: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940531

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: BUEHLER AG

Effective date: 19940727

EAL Se: european patent in force in sweden

Ref document number: 90907016.1

PLBO Opposition rejected

Free format text: ORIGINAL CODE: EPIDOS REJO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

APAE Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOS REFNO

APAC Appeal dossier modified

Free format text: ORIGINAL CODE: EPIDOS NOAPO

PLBN Opposition rejected

Free format text: ORIGINAL CODE: 0009273

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: OPPOSITION REJECTED

27O Opposition rejected

Effective date: 19990108

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20080528

Year of fee payment: 19

Ref country code: ES

Payment date: 20080416

Year of fee payment: 19

Ref country code: DK

Payment date: 20080519

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20080505

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20080428

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080626

Year of fee payment: 19

Ref country code: SE

Payment date: 20080512

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20080528

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080523

Year of fee payment: 19

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: KEMENY AG PATENTANWALTBUERO;EISENGASSE 17;6004 LUZERN (CH)

BERE Be: lapsed

Owner name: *OCRIM S.P.A.

Effective date: 20090531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090531

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090512

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090531

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090531

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090602

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080428

Year of fee payment: 19

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091201

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090531

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090513

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090512

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090513