EP0124872A2 - Walzenmühle für Getreide mit waagerecht angeordneten Mahlwalzen - Google Patents

Walzenmühle für Getreide mit waagerecht angeordneten Mahlwalzen Download PDF

Info

Publication number
EP0124872A2
EP0124872A2 EP84104957A EP84104957A EP0124872A2 EP 0124872 A2 EP0124872 A2 EP 0124872A2 EP 84104957 A EP84104957 A EP 84104957A EP 84104957 A EP84104957 A EP 84104957A EP 0124872 A2 EP0124872 A2 EP 0124872A2
Authority
EP
European Patent Office
Prior art keywords
roll
mobile
roller mill
supports
support
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Withdrawn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
EP84104957A
Other languages
English (en)
French (fr)
Other versions
EP0124872A3 (de
Inventor
Antonio Crivellaro
Francesco Piacentini
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.)
Golfetto SpA
Original Assignee
Golfetto 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 Golfetto SpA filed Critical Golfetto SpA
Publication of EP0124872A2 publication Critical patent/EP0124872A2/de
Publication of EP0124872A3 publication Critical patent/EP0124872A3/de
Withdrawn legal-status Critical Current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
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
    • B02C4/38—Adjusting, applying pressure to, or controlling the distance between, milling members in grain mills

Definitions

  • This invention relates to a roller mill of the horizontal roll type for cereals.
  • Roller mills of the horizontal roll type for cereals are known. They generally comprise two vertically separated sections which can either operate "in parallel” in the sense that the same feed cereal is fed simultaneously to their inlets and subjected to the same treatment (rupture, grinding or finishing) or can operate independently of each other by subjecting the material to different treatments.
  • the object of the invention is to obviate these drawbacks by providing a cereal roller mill of the horizontal roll type, in which the rolls can be removed and remounted without having to substantially remove the members involved in the attack and withdrawal, setting and slack take-up of said rolls.
  • a cereal roller mill comprising at least one pair of horizontal rolls, of which one is fixed and is supported by supports applied to the machine shoulders and one is mobile and mounted on supports which are hinged to said shoulders and operated by lever and cam systems during the attack and withdrawal movements, and further comprising adjustment members operable from the outside for horizontally moving the two mobile roll supports independently of each other, characterised in that each mobile roll support is hinged at one end to a cylindrical member eccentrically mounted on a pin for connection to the corresponding shoulder and rigid with an adjustment member operable from the outside, and is connected at its other end to a member for controlling the attack and withdrawal movements, by way of a member which is elastically yieldable in the withdrawal direction, further elastic members being provided having one end connected to the shoulders at points separated from the fixed roll supports, and having their other end connected to the mobile supports and acting in the withdrawal direction.
  • each mobile roll support can comprise a central cylindrical cavity for housing the roll bearing, an appendix which extends vertically from said cavity portion and is hinged at its end to the cylindrical member, and a second appendix which extends from the opposite side and is hinged to the member which controls the attack and withdrawal movements.
  • the roller mill can comprise for each support a precompressed spring interposed between a ledge rigid with the shoulder and a lever rigid with the cylindrical member, said lever being connected to a threaded rod which can be rotated by an external handwheel.
  • the spring can advantageously be of adjustable type.
  • the roller mill according to the invention comprises a stand 1 formed from two shoulders 2 which are rigidly connected together by a base 3 and cross-members.
  • the machine is divided vertically in the longitudinal direction into two constructionally equal sections which are joined together at their rear. Consequently, the lateral end of one section of the roller mill is identical to the opposite lateral end of the other section, and an overall side view of the machine (see Figure 1) thus substantially represents both the ends of each section. Because of this, the description given hereinafter, which relates to one of the two sections, is also valid in its entirety for the other section.
  • a horizontal slot 4 open at one end is formed in each shoulder 2, and between the two facing slots of the two shoulders 2 are mounted the supports 5,5' for the two grinding rolls, namely the fixed 6 and mobile 6' respectively. More particularly, the supports 5' for the mobile grinding roll 6' are disposed in such a manner that the relative roll is housed in the inner position in the slots 4, whereas the supports 5 for the fixed roll 6, which are of flanged type, are fitted externally to the shoulders 2 in that position of the slots 4 which is closest to their opening.
  • each slot 4 between the support for the fixed roll 6 and the support for the mobile roll 6' is occupied by a central removable side portion
  • the free portion of each slot 4 between the support 5 for the fixed roll 6 and the open end is occupied by a removable outer side portion 8.
  • the two supports 5' for the mobile roll 6' are of substantially elongated configuration, in the sense that in addition to comprising the necessary cylindrical cavity 9 which houses a bearing for the mobile roll 6', they extend in the form of a lower appendix 10 and an upper appendix 11.
  • the lower appendix 10 is provided at its end with a smaller cylindrical cavity housing a complementary cylindrical member 12 eccentrically mounted on a pin 13 rigid with the corresponding shoulder 2.
  • the cylindrical member 12 is rigid with a lever 14, at the end of which there is provided a threaded bush 15 engaged by a threaded rod 16 which can be rotatably driven by an external handwheel 17.
  • a coil spring 18 In the central portion of the lower appendix 10 there rests a coil spring 18, the other end of which rests on a ledge 19 rigid with the shoulder 2 at a point separated from the point 5.
  • the spring 18, which can be adjusted in terms of its degree of precompression, acts in the sense of urging the mobile roll 6' to withdraw from the fixed roll 6.
  • each support 5' is substantially formed from two disks 20 removably connected to a tubular portion 21. This latter is formed from two parts, of which one part 22 facing the fixed roll 6 can be removed in order to enable the mobile roll 6 ' to be removed, as described hereinafter.
  • each support 5' comprises a cavity for the passage of a tie rod 23 which controls the attack movement.
  • a tie rod 23 which controls the attack movement.
  • two half casings 24,24' which are inserted telescopically into each other to enclose a plurality of cup springs 25 which can be preloaded by means of a setting screw 26.
  • the half casing 24' which is not in contact with the setting screw 26, externally comprises at its end a pair of pointed projections 27 engaging in corresponding notches 28 provided in the appendix 11.
  • the opposite end of the tie rod 23 is hinged to a pin 29 mounted eccentrically on a shaft 30 which passes through the machine and thus operates the tie rod 23 provided at the other side thereof, as will be seen hereinafter.
  • the shaft 30 is provided at one end with a lever 31 connected to a single-acting hydraulic cylinder-piston unit 32.
  • roller mill according to the invention operates as described hereinafter, but no description is given of the section for feeding and distributing the cereal to the two grinding rolls 6,6', or of the members which are not concerned with the operations involved in the attack and withdrawal, the setting, the take-up of slack and the mounting of the rolls and their removal for overhaul, and which are of known type and do not constitute the subject matter of the present invention.
  • the cylinder-piston unit 32 In order to effect the attack operation, ie to cause the mobile roll 6', assumed spaced apart from the fixed roll 6, to approach this latter, both rolls being in a state of rotation, the cylinder-piston unit 32 is charged. This causes its rod 34 to retract into the cylinder 35, thus rotating the shaft 30 about its axis by way of the lever 31. This rotation causes the two eccentric pins 25 provided at both its ends to move and thus exert traction on the two tie rods 23. As the elastic reaction of the cup springs 25 prevails over the elastic reaction of the springs 18, the traction exerted on the tie rods 23 causes a corresponding rotation of the two supports 5' about the axis of the corresponding cylindrical member 12, thus causing the mobile roll 6' to approach the fixed roll 6.
  • the various parts are sized so that the maximum excursion of the rod 34 of the cylinder-piston unit 32 corresponds to the required horizontal translatory stroke of travel of the mobile roll 6', although any required adjustments and setting corrections can in any case be carried out by adjusting the preloading screws 26 for the cup springs 25.
  • the roller mill is now able to correctly perform its functions. If during its regular operation any foreign body such as a piece of iron should accidentally fall together with the cereal to be ground, any damage to the rolls is prevented by the elastic yielding of the cup springs 25, which allow instantaneous withdrawal of the mobile roll 6' from the fixed roll 6 for the passage of said foreign body.
  • each coil spring 18 elastically urges the relative support 5' in the withdrawal direction.
  • the tie rods 23 are kept in a state of tension, which takes-up any slack between them and the supports 5', between them and the shaft 30, between the shaft 30 and the lever 31, and between the lever 31 and the cylinder-piston unit 32.
  • said springs 18 also take-up the inevitable slack between the supports 5' and the cylindrical members 12, and between the cylindrical members 12 and the pins 13.
  • the two springs 18 take-up all slack due to the attack, withdrawal and adjustment system, so eliminating any vibration and making the machine operation very silent.
  • the miller by operating the handwheel or wheels 17, moves the end of the corresponding lever 14 to cause the cylindrical member 12 to rotate about the axis of rotation of the eccentric pin 13 on which it is mounted.
  • rotating the cylindrical member 12 also results in its translatory movement, and thus a translatory movement of the lower end of the support 5'.
  • roller mill according to the invention has numerous advantages over known roller mills with horizontal rolls, and in particular:

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Adjustment And Processing Of Grains (AREA)
EP84104957A 1983-05-06 1984-05-03 Walzenmühle für Getreide mit waagerecht angeordneten Mahlwalzen Withdrawn EP0124872A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8411483 1983-05-06
IT84114/83A IT1172828B (it) 1983-05-06 1983-05-06 Laminatoio a cilindri orizzontali per cereali

Publications (2)

Publication Number Publication Date
EP0124872A2 true EP0124872A2 (de) 1984-11-14
EP0124872A3 EP0124872A3 (de) 1986-02-05

Family

ID=11324199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84104957A Withdrawn EP0124872A3 (de) 1983-05-06 1984-05-03 Walzenmühle für Getreide mit waagerecht angeordneten Mahlwalzen

Country Status (3)

Country Link
EP (1) EP0124872A3 (de)
ES (1) ES532682A0 (de)
IT (1) IT1172828B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0428183A2 (de) * 1988-03-10 1991-05-22 Bühler GmbH Vorrichtung zum Vermahlen und Separieren von Korngut
EP0429658A1 (de) * 1989-05-22 1991-06-05 Satake Engineering Co., Ltd. Walzenmühle
WO1993013857A1 (en) * 1992-01-20 1993-07-22 Golfetto S.P.A. Roller mill for cereals

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE608759C (de) * 1934-01-19 1935-01-31 Fried Krupp Grusonwerk Akt Ges Walzenmuehle
FR1156621A (fr) * 1955-08-22 1958-05-19 Vickers Armstrong Engineers Lt Moulin broyeur à trois rouleaux
US3881663A (en) * 1974-02-14 1975-05-06 Andrew M Brown Roll mill for flaking grain and the like
DE2501847A1 (de) * 1974-01-18 1975-07-24 Buehler Ag Geb Mahlwalzwerk mit ein- und ausbaubaren mahlwalzen
FR2358195A1 (fr) * 1976-07-16 1978-02-10 Buehler Ag Geb Procede et dispositif de mouture de cereales

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE608759C (de) * 1934-01-19 1935-01-31 Fried Krupp Grusonwerk Akt Ges Walzenmuehle
FR1156621A (fr) * 1955-08-22 1958-05-19 Vickers Armstrong Engineers Lt Moulin broyeur à trois rouleaux
DE2501847A1 (de) * 1974-01-18 1975-07-24 Buehler Ag Geb Mahlwalzwerk mit ein- und ausbaubaren mahlwalzen
US3881663A (en) * 1974-02-14 1975-05-06 Andrew M Brown Roll mill for flaking grain and the like
FR2358195A1 (fr) * 1976-07-16 1978-02-10 Buehler Ag Geb Procede et dispositif de mouture de cereales

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0428183A2 (de) * 1988-03-10 1991-05-22 Bühler GmbH Vorrichtung zum Vermahlen und Separieren von Korngut
EP0428183A3 (en) * 1988-03-10 1992-05-06 Buehler Gmbh Apparatus for milling and separating kernels
EP0598705A2 (de) * 1988-03-10 1994-05-25 Bühler GmbH Vorrichtung für die Vermahlung und/oder Verpressung von Nahrungs- oder Futtermittelkomponenten
EP0598705A3 (en) * 1988-03-10 1994-07-20 Buehler Gmbh Device for milling and/or compacting food or fodder components.
EP0429658A1 (de) * 1989-05-22 1991-06-05 Satake Engineering Co., Ltd. Walzenmühle
EP0429658A4 (en) * 1989-05-22 1991-07-24 Satake Engineering Co., Ltd. Roll machine for milling
WO1993013857A1 (en) * 1992-01-20 1993-07-22 Golfetto S.P.A. Roller mill for cereals

Also Published As

Publication number Publication date
ES8503522A1 (es) 1985-04-01
IT8384114A0 (it) 1983-05-06
IT1172828B (it) 1987-06-18
EP0124872A3 (de) 1986-02-05
ES532682A0 (es) 1985-04-01

Similar Documents

Publication Publication Date Title
SU1213977A3 (ru) Устройство дл дроблени и размола зерна
US5673864A (en) Cereal milling machine
US4171655A (en) Stabilized center-distance adjuster for rotary die cutters
US4277915A (en) Apparatus for shaping electrodes
EP0124872A2 (de) Walzenmühle für Getreide mit waagerecht angeordneten Mahlwalzen
US3987657A (en) Roll setting device for rolling mills for metal bars or the like
US4165661A (en) Machine tool construction
ITMI950609A1 (it) Macchina a cilindri per la macinazione di cereali e simili con dispositivo a singolo asse di rotazione per la regolazione
SU753503A1 (ru) Прокатна клеть с четырехвалковым калибром
DE1577390B2 (de) Einrichtung zum hin- und herbewegen der schleifkoerperhalterung einer superfinish- oder honmaschine
US4727739A (en) Box to separate rolled stock
US1945853A (en) Stone crusher
US6234885B1 (en) Roll grinding machine
US1983736A (en) Refining mill of the roll and adjustable breast bar type
US2868047A (en) Rolling mill
US2157760A (en) Straightening machine
US2964249A (en) Material reducing apparatus
US3395563A (en) Forging machine
CN110405283A (zh) 一种梳棉机的导条的加工装置
CN2628143Y (zh) 磨粉机磨辊轧距无级调节装置
CN220503274U (zh) 一种皮辊可调的皮辊轧花机
CN215917521U (zh) 一种锥型磨粉机
RU2075360C1 (ru) Устройство для волочения
US4184293A (en) Roll neckrest support
RU2112598C1 (ru) Вальцовый станок

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

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19861006

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CRIVELLARO, ANTONIO

Inventor name: PIACENTINI, FRANCESCO