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US3467031A - Feed cube press with eccentricity adjusting and clamping means - Google Patents

Feed cube press with eccentricity adjusting and clamping means Download PDF

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Publication number
US3467031A
US3467031A US624912A US3467031DA US3467031A US 3467031 A US3467031 A US 3467031A US 624912 A US624912 A US 624912A US 3467031D A US3467031D A US 3467031DA US 3467031 A US3467031 A US 3467031A
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US
United States
Prior art keywords
clamping
plates
roller
web
feed
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
US624912A
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English (en)
Inventor
Albert Hafliger
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.)
Buehler AG
Original Assignee
Buehler AG
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 Buehler AG filed Critical Buehler AG
Application granted granted Critical
Publication of US3467031A publication Critical patent/US3467031A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/20—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring
    • B30B11/201—Roller-and-ring machines, i.e. with roller disposed within a ring and co-operating with the inner surface of the ring for extruding material
    • B30B11/208—Roller constructions; Mounting of the rollers

Definitions

  • a feed cube press of the type arranged to compress and extrude rectangular cross section strips of cattle feed and the like, includes an annular mold and pressing rollers revolvable in the mold and supported on eccentric pins. These eccentric pins have extensions supported in a roller web, and plates are non-rotatably mounted on these extensions for angular adjustment conjointly with the extensions to adjust the relative eccentricity of the roller supporting bearing spindles of the pins.
  • Common clamping elements are engageable with the plates and are operable to maintain the latter in their adjusted angular positions.
  • the peripheral surfaces of the plates preferably are frustoconical.
  • the plates are clampable against the roller web, and either a single plate may be provided for each pin or a pair of plates may be provided for each pin, with one being disposed on each side of the roller web.
  • the invention is directed to feed cube presses including an annular mold and further including a roller carrier and a roller web disposed adjacent respective opposite axial end surfaces of the mold, with the web spaced a fixed axial distance from the mold surface adjacent thereto to receive clamping elements.
  • the carrier and the web are interconnected for rotation as a unit, and the mold and the unit are relatively rotatable.
  • Pins extend through the mold between the roller carrier and the roller web, and each pin has a leg engaged in the roller carrier and an extension, concentric with the leg, engaged in the roller web and arranged for angular adjustment in the roller web.
  • each pin includes a bearing spindle which is eccentric relative to its leg, and rollers are disposed within the mold and each rotatable on a respective bearing spindle.
  • rollers are disposed within the mold and each rotatable on a respective bearing spindle.
  • the roller web is slotted at the bores receiving the pin extensions, and the eccentric pins are secured in angularly adjusted position by reducing the sizes of the bores by means of several screws operable on one or both sides of the slot. Thereby, the cylindrical extension of the eccentric pins is clamped against relative rotation.
  • a clamping means of this type has been found to have some disadvantages.
  • the solid roller web used for clamping must be deformable, that is, it must be elastic in the area which receives the extension, and this complicates the formation of the web.
  • the tractive force exerted by the screws on the roller web is only partly effective for clamping the extensions, since the screws must also be able to overcome the force resisting deformation of the roller web.
  • a further disadvantage is the relatively small radius of the extension on which the rotation preventing means are operable.
  • the present invention relates to a feed cube press of the type mentioned and, more particularly, to an improved clamping arrangement including plates non-rotatably mounted on the extensions of the eccentric pins, for angular adjustment conjointly with the latter, and which plates can be clamped to maintain an angularl adjusted position by means of common clamping elements.
  • the advantage of the invention arrangement is that the plates secured against rotation with respect to the extensions of the eccentric pins maintain the adjusted angular positions of the pins after clamping.
  • the eccentric pins can be adjusted individually and independently of each other into selected angularly adjusted positions.
  • the securing of the eccentric pins against rotation is effected by a single common screw.
  • the clamping elements are rather simple in their design, and thus greatly expedite the assembly of the press.
  • roller web is used as one of the common clamping elements.
  • the traction force of the screws is doubly effective as a clamping force.
  • edges of the plates can be frustoconical, and the straps engageable with the clamping plates can have mating frustoconical edges.
  • the resulting wedging effect between the plates and the straps additionally reinforces the security against rotation of the eccentric pins, by increasing the frictional force.
  • each plate can, in accordance with the invention, be made to extend through only a part of the periphery of the plate, the remainder of the plate periphery being recessed radially inwardly. Thereby, the space requirements in the proximity of the feed is reduced.
  • An object of the invention is to provide, in a feed cube press including rollers mounted on eccentric pins, improved means for maintaining the adjusted eccentricity of the pins.
  • a further object of the invention is to provide, in such a feed cube press, an arrangement whereby the adjusted angular position of the eccentric pins can be clamped by common clamping elements.
  • a further object of the invention is to provide, in such a feed cube press, improved clamping means for maintaining the adjusted angular positions of the pins after clamping, and in which the eccentric pins can be adjusted individually and independently of each other.
  • Still another object of the invention is to provide, in a feed cube press, a clamping arrangement of the type just mentioned in which clamping of the eccentric pins in angularly adjusted position is effected by a single common screw.
  • a further object of the invention is to provide, in a feed cube press, a clamping arrangement which is simple in design and facilitates assembly of the press.
  • Yet another object of the invention is to provide, in a feed cube press, a clamping arrangement of the type mentioned in which a roller web is used as one of the common clamping elements.
  • a further object of the invention is to provide, in a feed cube press, a clamping arrangement of the type just mentioned wherein clamping plates, and straps for clamping the plates, are arranged on opposite surfaces of the roller web on the eccentric pin extensions whereby traction forces of holding screws can be additionally utilized for clamping.
  • Still another object of the present invention is to provide, in a feed cube press, a clamping arrangement including clamping plates and in which the peripheries of the plates are frustoconical with the clamping straps, associated with the plates, having mating frustoconical edges.
  • a further object of the invention is to provide, in the clamping arrangement just mentioned, an arrangement wherein the frustoconical circular plate edge extends through only a part of the plate periphery, with the periphery being recessed radially inwardly in its remaining part, thereby reducing space requirements in the proximity of the feed.
  • FIG. 1 is an axial sectional view through a feed cube press embodying the invention, taken along the line I-I of FIG. 2;
  • FIG. 2 is a front elevation view corresponding to FIG. 1;
  • FIG. 3 is a sectional view taken along the line III- III of FIG. 2;
  • FIG. 4 is an elevation view of a clamping plate illustrating a modification of the invention.
  • FIG. 5 is a view similar to FIG. 3 but illustrating a further modification of the invention.
  • annular mold 1 Referring first to FIGS. 1, 2 and 3, an annular mold 1,
  • a roller carrier 3 which is rotatable relative to mold 1, serves to receive and support legs 4 of eccentric pins 5.
  • Each eccentric pin 5 includes a bearing spindle 6 which is eccentric relative to leg 4 and disposed within mold 1, and an extension 7 which is concentric with leg 4 or coaxial therewith.
  • Extensions 7 of eccentric pins 5 are mounted, for angular adjustment, in a roller web interconnecting the extensions 7.
  • Roller web 10 is maintained at a fixed axial spacing from roller carrier 3 by shouldered stay bolts 8 and nuts 9 (FIG. 2).
  • Roller carrier 3, eccentric pins 5 and roller web 10 conjointly form a unit or frame.
  • each eccentric pin 5 includes a first or innermost polygonal, preferably hexagonal, part immediately adjacent bearing spindle 6. Outwardly of part 20, each extension 7 includes a cylindrical part 22 extending, for angular adjustment, through roller Web 10.
  • each extension 7 is formed with a second polygonal, but preferably hexagonal, part 23, and the outermost end of each extesnion 7 is formed as a third polygonal, preferably hexagonal, part 24 for the application of a wrench to the extension to adjust the eccentric pin.
  • the feed cube press includes press rollers 25 each of which is supported by roller bearings 26 on the spindle 6 of a respective eccentric pin 5.
  • a spacing ring 27 is interposed between roller bearings 26, and the left end of each spindle bearing 6, as viewed in FIG. 1, is threaded at 28 to receive a nut 32 maintaining the roller bearings assembled, the assembly further including spacer rings 29 separated by dust protecting rings 30 from the inner races of roller bearings 26.
  • the roller bearing assembly further includes two bearing covers 31 engageable with the respective press roller 25 and the outer races of roller bearings 26.
  • plates and 41 are associated with each extension 7 of an eccentric pin 5, these plates being circular plates having polygonal, preferably hexagonal, axial openings conformingly engaging the correspondingly shaped polygonal parts 20 and 23, respectively, of each extension 7.
  • Plates 40 and 41 have frustoconical peripheries 42 and are clamped between straps 43 and 44, representing common clamping elements, and roller web 10.
  • Those surfaces of straps 43 and 44 engaging the plates 40 and 41 are circular arcs conforming to the periphery of the plates 40 and 41, and have frustoconical configurations mating with the frustoconical surfaces 42 of plates 40 and 41.
  • Straps 43 and 44 are braced against each other by a screw 45 extending freely through the aperture in strap 44 and through an aligned aperture in roller web 10, and threaded into strap 43.
  • screw 45 is loosened and, by turning hexagonal part 24 of each pin 5, it is possible to increase or decrease the distance between the associated press roller and the inner surface of mold 1.
  • the respective spacings of press rollers 25 from mold 1 can be varied individually and independently.
  • straps 43 and 44 are drawn toward each other by turning screw 45, and this has the effect of clamping plates 40 and 41 between roller web 10 and straps 43 and 44, respectively.
  • the provision of the mating conical engaging surfaces, such as the surface 42 of each plate 40 and 41, results in a wedging effect between plates 40 and 41 and straps 43 and 44, respectively, which increases the frictional force.
  • the clamping surface 42 has a large radius compared to that of extensions 7, and this, together with the wedging effect, greatly improves the securing of eccentric pins 5 against angular displacement after adjustment. Due to that component of the force between plates 40, 41 and straps 43, 44 extending longitudinally of roller web 10, cylindrical parts 22 of extensions 7 are pressed against the surface of the respective bores in roller web 10, thus producing additional frictional forces increasing the clamping effect.
  • the angle of inclination of the frustoconical surfaces can be so selected that the resultant wedging effect is self-locking when screw 45 is tightened.
  • a tool can be inserted between roller web 10 and straps 43 and 44 in order to loosen the latter.
  • Such a design of the frustoconical engaging surfaces insures that there can be no displacement in operation, even if screw 45 should loosen. In this design, the major part of clamping effect is produced in the frustoconical surfaces 42.
  • the frustoconical circular surface 42' is provided over only a part of the periphery of each plate 41, and the remainder of the periphery is recessed radially inwardly.
  • plates 41 and the common strap 44 can be clamped directly with roller web by a screw 45.
  • a screw 45 In cases where the securing against angular displacement of the eccentric pins can be effected by a single clamping plate 41, it is possible to use a strap 44' on only one side of roller web 10.
  • the invention can be used in cube feed presses with a rotary mold and a stationary roller carrier, in such presses with a stationary mold and a rotary roller carrier, and in such presses where both the mold and the roller carrier are rotatable but a different speeds.
  • said plates include, for each eccentric pin extension, plates arranged on respective opposite surfaces of said roller web; said common clamping elements clamping each pair of plates against said roller web.
  • said clamping elements include a pair of clamping elements one adjacent each side of said roller web and common to the plates on the same side of the roller Web.
  • each extension has an operating portion projecting outwardly of said plates for engagement by an eccentricity adjusting tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Advancing Webs (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
US624912A 1966-03-23 1967-03-21 Feed cube press with eccentricity adjusting and clamping means Expired - Lifetime US3467031A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH420666A CH454592A (de) 1966-03-23 1966-03-23 Futterwürfelpresse

Publications (1)

Publication Number Publication Date
US3467031A true US3467031A (en) 1969-09-16

Family

ID=4271767

Family Applications (1)

Application Number Title Priority Date Filing Date
US624912A Expired - Lifetime US3467031A (en) 1966-03-23 1967-03-21 Feed cube press with eccentricity adjusting and clamping means

Country Status (5)

Country Link
US (1) US3467031A (nl)
CH (1) CH454592A (nl)
DE (1) DE1577208C3 (nl)
GB (1) GB1164336A (nl)
NL (1) NL139111B (nl)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743462A (en) * 1971-07-23 1973-07-03 California Pellet Mill Co Traversing roll type extruder
US3752632A (en) * 1970-10-30 1973-08-14 Heesen Nv Simon Press for forming granular material
US3927448A (en) * 1973-12-20 1975-12-23 Simon Barron Ltd Pelletizing machines
US4148596A (en) * 1976-07-28 1979-04-10 Richard Schultz Pelletizing press
DE3231148A1 (de) * 1982-08-21 1984-02-23 Amandus Kahl Nachf. (GmbH & Co), 2057 Reinbek Verfahren und vorrichtung zum bestimmen des abstandes zwischen der matrize und den kollerrollen einer kollerpresse
US4770621A (en) * 1986-01-24 1988-09-13 Gebruder Buhler Ag Pellet mill
US4838779A (en) * 1986-05-20 1989-06-13 Van Aarsen Machinefabriek, B.V. Apparatus for a pelletizer having hydraulically adjustable pressing rolls
US5248469A (en) * 1992-10-19 1993-09-28 California Pellet Mill Company Mechanical remote roll adjusting apparatus and method for a pellet mill
US6299430B1 (en) * 1998-12-17 2001-10-09 Consolidated Process Machinery, Inc. Cooling medium injection for pellet mill rollers
RU2295228C1 (ru) * 2005-09-13 2007-03-20 Общество с ограниченной ответственностью "Агропродмаш" Гранулятор
EP2105292A1 (de) * 2008-03-26 2009-09-30 Salzhausener Maschinenbautechnik Salmatec GmbH Kollerverstellvorrichtung
US20100183759A1 (en) * 2009-01-21 2010-07-22 Allis Carl R Roller for Pelleting Mill
CN102367009A (zh) * 2011-11-29 2012-03-07 徐州燃控科技生物能源有限公司 一种压辊和环模间隙无级调节装置
US20130142469A1 (en) * 2009-02-10 2013-06-06 Kone Corporation Method for installing a double bearing in a casting, wheel comprising a double bearing, and joint with double bearing
CN105729866A (zh) * 2016-04-01 2016-07-06 辽宁石油化工大学 生物质成型机同心轴偏心间隙调整机构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE7409T1 (de) * 1981-03-25 1984-05-15 Rolf Scheiwiller Pflasterstein und vorrichtung zur herstellung desselben.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240660A (en) * 1940-02-26 1941-05-06 Edgar T Meakin Extrusion mill
US3354845A (en) * 1964-06-26 1967-11-28 Buehler Ag Geb A pellet mill having adjustably mounted rollers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2240660A (en) * 1940-02-26 1941-05-06 Edgar T Meakin Extrusion mill
US3354845A (en) * 1964-06-26 1967-11-28 Buehler Ag Geb A pellet mill having adjustably mounted rollers

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3752632A (en) * 1970-10-30 1973-08-14 Heesen Nv Simon Press for forming granular material
US3743462A (en) * 1971-07-23 1973-07-03 California Pellet Mill Co Traversing roll type extruder
US3927448A (en) * 1973-12-20 1975-12-23 Simon Barron Ltd Pelletizing machines
US4148596A (en) * 1976-07-28 1979-04-10 Richard Schultz Pelletizing press
DE3231148A1 (de) * 1982-08-21 1984-02-23 Amandus Kahl Nachf. (GmbH & Co), 2057 Reinbek Verfahren und vorrichtung zum bestimmen des abstandes zwischen der matrize und den kollerrollen einer kollerpresse
US4770621A (en) * 1986-01-24 1988-09-13 Gebruder Buhler Ag Pellet mill
US4861529A (en) * 1986-01-24 1989-08-29 Gebruder Buhler Press roller adjustment
US4838779A (en) * 1986-05-20 1989-06-13 Van Aarsen Machinefabriek, B.V. Apparatus for a pelletizer having hydraulically adjustable pressing rolls
US5248469A (en) * 1992-10-19 1993-09-28 California Pellet Mill Company Mechanical remote roll adjusting apparatus and method for a pellet mill
US6299430B1 (en) * 1998-12-17 2001-10-09 Consolidated Process Machinery, Inc. Cooling medium injection for pellet mill rollers
RU2295228C1 (ru) * 2005-09-13 2007-03-20 Общество с ограниченной ответственностью "Агропродмаш" Гранулятор
EP2105292A1 (de) * 2008-03-26 2009-09-30 Salzhausener Maschinenbautechnik Salmatec GmbH Kollerverstellvorrichtung
US20100183759A1 (en) * 2009-01-21 2010-07-22 Allis Carl R Roller for Pelleting Mill
US20130142469A1 (en) * 2009-02-10 2013-06-06 Kone Corporation Method for installing a double bearing in a casting, wheel comprising a double bearing, and joint with double bearing
CN102367009A (zh) * 2011-11-29 2012-03-07 徐州燃控科技生物能源有限公司 一种压辊和环模间隙无级调节装置
CN105729866A (zh) * 2016-04-01 2016-07-06 辽宁石油化工大学 生物质成型机同心轴偏心间隙调整机构

Also Published As

Publication number Publication date
NL6703627A (nl) 1967-09-25
CH454592A (de) 1968-04-15
NL139111B (nl) 1973-06-15
GB1164336A (en) 1969-09-17
DE1577208C3 (de) 1974-03-21
DE1577208B2 (de) 1973-08-23
DE1577208A1 (de) 1970-04-23

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