EP0344410A2 - Roll mill with an adjustable roll nip for ceramic masses - Google Patents

Roll mill with an adjustable roll nip for ceramic masses Download PDF

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Publication number
EP0344410A2
EP0344410A2 EP89103998A EP89103998A EP0344410A2 EP 0344410 A2 EP0344410 A2 EP 0344410A2 EP 89103998 A EP89103998 A EP 89103998A EP 89103998 A EP89103998 A EP 89103998A EP 0344410 A2 EP0344410 A2 EP 0344410A2
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EP
European Patent Office
Prior art keywords
adjustable
rolling mill
roll
rockers
bearing
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Withdrawn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
EP89103998A
Other languages
German (de)
French (fr)
Other versions
EP0344410A3 (en
Inventor
Franz Vogel
Gebhard Riedle
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.)
Rieter-Werke Handle KG
Rieter Werke Haendle GmbH
Original Assignee
Rieter-Werke Handle KG
Rieter Werke Haendle GmbH
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 Rieter-Werke Handle KG, Rieter Werke Haendle GmbH filed Critical Rieter-Werke Handle KG
Publication of EP0344410A2 publication Critical patent/EP0344410A2/en
Publication of EP0344410A3 publication Critical patent/EP0344410A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/12—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
    • B28B3/126—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material on material passing directly between the co-operating rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
    • B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones

Definitions

  • the invention relates to a rolling mill with an adjustable nip for ceramic masses according to the preamble of claim 1.
  • Such rolling mills have been known and used for many years.
  • a problem with such rolling mills is the exact setting and fixing of the roll gap. As a result of uneven wear of the roller surfaces and possible non-parallel turning of the rollers when the roller surfaces have to be smoothed, it is hardly possible to maintain a constant nip across the entire width of the rollers in previous rolling mills. Furthermore, in the conventional rolling mills, an adjustment or fixation of the roll gap, generally using spacers to be inserted or exchanged by hand, can only take place when the rolling mill is at a standstill.
  • the object of the present invention is therefore to design the known rolling mills in such a way that an exact setting and fixing of the nip is possible over the entire width of the roller, in a simple and quick manner and also when the rolling mill is running.
  • the solution to this problem results from the characterizing features of patent claim 1.
  • 10 denotes a machine stand on which the two rolling mill rollers 11 and 12 are mounted.
  • the axis 11a of the roller 11 is mounted directly in lugs 10a of the machine stand 10 on both sides: this roller is therefore referred to as the fixed roller.
  • the axis 12a of the In contrast, roller 12 is supported on both sides on rockers 14 which can be pivoted relative to the machine stand 10; the roller 12 is therefore referred to as an adjusting roller.
  • the rockers 14 in turn are pivotally mounted on stub axles 15 of the machine stand 10 and are designed in the manner of a two-arm lever.
  • the free end of one lever arm is supported by a spindle lifting element 16, the free end of the other lever arm by a hydraulic piston-cylinder unit 17.
  • the axis 12a of the adjusting roller 12 is also mounted on the rockers.
  • a lathe movable on the machine stand 10 is indicated for turning off the adjusting roller 12.
  • 19 designates a hydraulic unit with pumps, display elements and control buttons 20.
  • the rockers 14 are loaded by the piston-cylinder units 17 in the upward direction, with a hydraulic pressure predetermined by the hydraulic unit 19.
  • the height of the spindle lifting elements 16 can be adjusted separately, either manually or by motor.
  • the height of the elements 16 defines the width of the roll gap a, the gap being wider the higher the elements 16 are set. Because the two spindle lifting elements 16 are separately adjustable, the parallelism of the roller gap a over the entire roller width b can also be ensured if, for example, one of the rollers has been turned non-parallel, for example the roller 12 by the lathe 18.
  • the hydraulic pressure in the piston-cylinder units 17 is dimensioned such that, in normal operation, the rockers 14 are pressed firmly against the spindle lifting elements 16, but when a hard foreign body penetrates into the roll gap, the back pressure caused by this foreign body overcomes the hydraulic pressure of the elements 17 , with the result of an opening of the roller gap (protection of the hard roller surface). As soon as the stranger the body has "failed" downwards, the nip closes again automatically to its set value.
  • the adjustment of the roll gap can obviously be carried out manually or by motor without having to stop the rolling mill.

Abstract

A roll mill with adjustable roll nip for ceramic masses is improved in such a way that an exact adjustment and fixing of the roll nip is ensured. To do this, the roll mill has two rolls, a fixed roll and an adjustable roll, the adjustable roll being supported on both sides in links which are constructed in the form of double-armed levers and are supported, on one side, by hydraulic piston-and-cylinder units and, on the other, by adjustable stops. <IMAGE>

Description

Die Erfindung betrifft ein Walzwerk mit verstellbarem Walzen­spalt für keramische Massen gemäß dem Oberbegriff des Patent­anspruches 1. Solche Walzwerke sind seit vielen Jahren bekannt und in Benutzung.The invention relates to a rolling mill with an adjustable nip for ceramic masses according to the preamble of claim 1. Such rolling mills have been known and used for many years.

Ein Problem bei derartigen Walzwerken ist bis heute die exakte Einstellung und Fixierung des Walzenspalts. Infolge ungleich­mäßiger Abnutzung der Walzenoberflächen und mögliches unparal­leles Abdrehen der Walzen beim erforderlichen Glätten der Wal­zenoberflächen ist bei den bisherigen Walzwerken das Konstant­halten eines gleichmäßigen Walzenspaltes über die ganze Walzen­breite kaum erreichbar. Ferner kann bei den herkömmlichen Walz­werken eine Verstellung bzw. Fixierung des Walzenspaltes, wobei im allgemeinen von Hand einzusetzende oder auszutauschende Distanzstücke verwendet werden, nur im Stillstand des Walz­werks erfolgen.A problem with such rolling mills is the exact setting and fixing of the roll gap. As a result of uneven wear of the roller surfaces and possible non-parallel turning of the rollers when the roller surfaces have to be smoothed, it is hardly possible to maintain a constant nip across the entire width of the rollers in previous rolling mills. Furthermore, in the conventional rolling mills, an adjustment or fixation of the roll gap, generally using spacers to be inserted or exchanged by hand, can only take place when the rolling mill is at a standstill.

Aufgabe der vorliegenden Erfindung ist es deshalb, die bekannten Walzwerke so auszugestalten, daß eine exakte Einstellung und Fixierung des Walzenspalts über die gesamte Walzenbreite er­möglich ist, und zwar auf einfache und schnelle Weise und auch bei laufendem Walzwerk. Die Lösung dieser Aufgabe ergibt sich aus den kennzeichnenden Merkmalen des Patentanspruches 1.The object of the present invention is therefore to design the known rolling mills in such a way that an exact setting and fixing of the nip is possible over the entire width of the roller, in a simple and quick manner and also when the rolling mill is running. The solution to this problem results from the characterizing features of patent claim 1.

Auf der Zeichnung ist eine Ausführungsform der Erfindung bei­spielsweise dargestellt, und zwar zeigt die einzige Figur eine Schemaskizze des Walzwerks in perspektivischer Darstellung.In the drawing, an embodiment of the invention is shown, for example, and that the single figure shows a schematic diagram of the rolling mill in perspective.

Auf der Zeichnung ist mit 10 ein Maschinenständer bezeichnet, auf dem die beiden Walzwerkswalzen 11 und 12 gelagert sind. Da­bei ist die Achse 11a der Walze 11 unmittelbar in beidseitigen Ansätzen 10a des Maschinenständers 10 gelagert: diese Walze wird deshalb als die feste Walze bezeichnet. Die Achse 12a der Walze 12 ist dagegen beidseits an Schwingen 14 gelagert, die gegenüber dem Maschinenständer 10 verschwenkbar sind; die Walze 12 wird deshalb als Verstellwalze bezeichnet. Die Schwingen 14 ihrerseits sind schwenkbar an Achsstummeln 15 des Maschinenständers 10 gelagert und in Art eines Zweiarmhe­bels ausgebildet. Das freie Ende des einen Hebelarms ist durch ein Spindelhubelement 16 abgestützt, das freie Ende des anderen Hebelarms durch eine hydraulische Kolben-Zylinder-Einheit 17. An dem durch die Einheit 17 abgestützten Hebelarm ist auch die Achse 12a der Verstellwalze 12 an den Schwingen gelagert. Bei 18 ist eine auf dem Maschinenständer 10 verfahrbare Drehmaschi­ne zum Abdrehen der Verstellwalze 12 angedeutet. Mit 19 schließ­lich ist ein Hydraulik-Aggregat mit Pumpen, Anzeigeelemente und Regelknöpfen 20 bezeichnet.In the drawing, 10 denotes a machine stand on which the two rolling mill rollers 11 and 12 are mounted. In this case, the axis 11a of the roller 11 is mounted directly in lugs 10a of the machine stand 10 on both sides: this roller is therefore referred to as the fixed roller. The axis 12a of the In contrast, roller 12 is supported on both sides on rockers 14 which can be pivoted relative to the machine stand 10; the roller 12 is therefore referred to as an adjusting roller. The rockers 14 in turn are pivotally mounted on stub axles 15 of the machine stand 10 and are designed in the manner of a two-arm lever. The free end of one lever arm is supported by a spindle lifting element 16, the free end of the other lever arm by a hydraulic piston-cylinder unit 17. On the lever arm supported by the unit 17, the axis 12a of the adjusting roller 12 is also mounted on the rockers. At 18, a lathe movable on the machine stand 10 is indicated for turning off the adjusting roller 12. Finally, 19 designates a hydraulic unit with pumps, display elements and control buttons 20.

Die Schwingen 14 werden durch die Kolben-Zylindereinheiten 17 in Richtung nach oben belastet, und zwar mit einem vom Hydrau­likaggregat 19 aus vorgegebenen hydraulischen Druck. Damit drük­ken die entgegengesetzten Hebelarme der Schwingen 14 in Richtung von oben nach unten auf die Spindelhubelemente 16, die unnach­giebige Anschläge darstellen. Die Spindelhubelemente 16 können gesondert in ihrer Höhe verstellt werden, und zwar manuell oder motorisch. Die Höhe der Elemente 16 legt die Breite des Walzen­spaltes a fest, wobei der Spalt umso breiter ist, je höher die Elemente 16 eingestellt sind. Dadurch, daß die beiden Spindel­hubelemente 16 gesondert verstellbar sind, kann die Parallelität des Walzenspaltes a über die gesamte Walzenbreite b auch dann gewährleistet werden, wenn beispielsweise eine der Walzen un­parallel abgedreht worden ist, beispielsweise die Walze 12 durch die Drehmaschine 18.The rockers 14 are loaded by the piston-cylinder units 17 in the upward direction, with a hydraulic pressure predetermined by the hydraulic unit 19. Thus, the opposite lever arms of the rockers 14 push in the direction from top to bottom onto the spindle lifting elements 16, which represent unyielding stops. The height of the spindle lifting elements 16 can be adjusted separately, either manually or by motor. The height of the elements 16 defines the width of the roll gap a, the gap being wider the higher the elements 16 are set. Because the two spindle lifting elements 16 are separately adjustable, the parallelism of the roller gap a over the entire roller width b can also be ensured if, for example, one of the rollers has been turned non-parallel, for example the roller 12 by the lathe 18.

Der hydraulische Druck in den Kolben-Zylinder-Einheiten 17 wird so bemessen, daß im Normalbetrieb die Schwingen 14 fest gegen die Spindelhubelemente 16 gepreßt werden, bei Eindringen eines überharten Fremdkörpers in den Walzenspalt jedoch der durch diesen Fremdkörper bewirkte Gegendruck den Hydraulikdruck der Elemente 17 überwindet, mit der Folge einer Öffnung des Walzenspalts (Schutz der harten Walzenoberfläche). Sobald der Fremd­ körper nach unten "durchgefallen" ist, schließt sich der Wal­zenspalt wieder selbsttätig auf seinen eingestellten Wert.The hydraulic pressure in the piston-cylinder units 17 is dimensioned such that, in normal operation, the rockers 14 are pressed firmly against the spindle lifting elements 16, but when a hard foreign body penetrates into the roll gap, the back pressure caused by this foreign body overcomes the hydraulic pressure of the elements 17 , with the result of an opening of the roller gap (protection of the hard roller surface). As soon as the stranger the body has "failed" downwards, the nip closes again automatically to its set value.

Die Verstellung des Walzenspaltes kann offensichtlich manuell oder motorisch durchgeführt werden, ohne das Walzwerk anhalten zu müssen.The adjustment of the roll gap can obviously be carried out manually or by motor without having to stop the rolling mill.

Selbstverständlich ist die Erfindung nicht auf das dargestellte Ausführungsbeispiel beschränkt, sondern es sind diesem gegen­über zahlreiche Abwandlungen möglich, ohne den Bereich der Erfin­dung zu verlassen. Dies gilt insbesondere für die Geometrie der Lagerschwingen und die Ausbildung der Spindelhubelemente und der Kolben-Zylinder-Einheiten sowie der Steuerelemente für deren Verstellung.Of course, the invention is not restricted to the exemplary embodiment shown, but numerous modifications are possible without departing from the scope of the invention. This applies in particular to the geometry of the bearing rockers and the design of the spindle lifting elements and the piston-cylinder units and the control elements for their adjustment.

Claims (6)

1. Walzwerk mit verstellbarem Walzenspalt für keramische Massen, bestehend aus einer Walze mit feststehender Lagerung und einer Walze mit verstellbarer Lagerung, dadurch gekenn­zeichnet, daß die Verstellwalze (12) beidseits an Lagerschwin­gen (14) gelagert ist, die in Art von Doppelarmhebeln ausge­bildet sind, wobei der eine Hebelarm durch einen verstellbaren Anschlag (16) und der andere Hebelarm durch eine hydraulische Kolben-Zylinder-Einheit (17) unterstützt ist und das Lager für die Verstellwalzenachse (12a) sich außermittig an den Lager­schwingen (14) befindet.1. Rolling mill with an adjustable nip for ceramic masses, consisting of a roller with a fixed bearing and a roller with an adjustable bearing, characterized in that the adjusting roller (12) is mounted on both sides on bearing rockers (14) which are designed in the manner of double-arm levers, one lever arm being supported by an adjustable stop (16) and the other lever arm being supported by a hydraulic piston-cylinder unit (17) and the bearing for the adjusting roller axis (12a) is located off-center on the bearing rockers (14). 2. Walzwerk nach Anspruch 1, dadurch gekennzeichnet, daß die verstellbaren Anschläge (16) als manuell oder motorisch verstell­bare Spindelhubelement ausgebildet sind.2. Rolling mill according to claim 1, characterized in that the adjustable stops (16) are designed as manually or motor-adjustable spindle lifting element. 3. Walzwerk nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kolben-Zylindereinheiten (17) durch einen Hydraulikdruck vor­gegebener Höhe beaufschlagt sind.3. Rolling mill according to claim 1 or 2, characterized in that the piston-cylinder units (17) are acted upon by a hydraulic pressure of a predetermined height. 4. Walzwerk nach einem der Ansprüche 1 bis 3, dadurch gekenn­zeichnet, daß die Spindelhubelemente (16) und/oder die Kolben­zylindereinheiten (17) gesondert einstellbar sind.4. Rolling mill according to one of claims 1 to 3, characterized in that the spindle lifting elements (16) and / or the piston-cylinder units (17) are separately adjustable. 5. Walzwerk nach einem der Ansprüche 1 bis 4, dadurch gekenn­zeichnet, daß die Verstellwalzenachse (12a) an einer Stelle an den Lagerschwingen (14) gelagert ist, die sich zwischen der An­lenkung (15) der Schwingen (14) und dem Angriffspunkt der Kol­ben-Zylinder-Einheiten (17) befinden.5. Rolling mill according to one of claims 1 to 4, characterized in that the adjusting roller axis (12a) is mounted at one point on the bearing rockers (14), which is between the linkage (15) of the rockers (14) and the point of application of the pistons -Cylinder units (17) are located. 6. Walzwerk nach einem der Ansprüche 1 bis 5, dadurch gekenn­zeichnet, daß die Verstellwalze (12) mittels Pendellager an den Schwingen (14) gelagert ist.6. Rolling mill according to one of claims 1 to 5, characterized in that the adjusting roller (12) is mounted on the rockers (14) by means of self-aligning bearings.
EP19890103998 1988-05-31 1989-03-07 Roll mill with an adjustable roll nip for ceramic masses Withdrawn EP0344410A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3818540 1988-05-31
DE19883818540 DE3818540A1 (en) 1988-05-31 1988-05-31 ROLLING MILL WITH ADJUSTABLE ROLLER NECK FOR CERAMIC MEASURES

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EP0344410A2 true EP0344410A2 (en) 1989-12-06
EP0344410A3 EP0344410A3 (en) 1991-04-17

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EP19890103998 Withdrawn EP0344410A3 (en) 1988-05-31 1989-03-07 Roll mill with an adjustable roll nip for ceramic masses

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4435935A1 (en) * 1994-10-07 1996-04-11 Rieter Werke Haendle Roll mill with adjustment of roll gap width
WO2014116157A1 (en) * 2013-01-28 2014-07-31 Oneday Wall Ab Machine and manufacturing method for building board

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4121882A1 (en) * 1991-07-02 1993-01-28 Neumann Bruno Dipl Ing Ceramic mass roller mill - has rocker or lever system to adjust and set setting and counter rollers
BE1027983B1 (en) * 2020-01-14 2021-08-16 Thyssenkrupp Ag Apparatus and method for grinding feedstock and control / regulating device and use
BE1027987B1 (en) * 2020-01-14 2021-08-16 Thyssenkrupp Ag Apparatus and method for grinding feedstock and control / regulating device and use
BE1027984B1 (en) * 2020-01-14 2021-08-16 Thyssenkrupp Ind Solutions Ag Apparatus and method for grinding feedstock and control / regulating device and use
CN115315315A (en) 2020-01-14 2022-11-08 蒂森克虏伯工业解决方案股份公司 Apparatus and method for grinding input material

Citations (7)

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Publication number Priority date Publication date Assignee Title
DE28476C (en) * 1965-04-30 H. bauermeister in Hamburg Device for adjusting the rollers of roller mills during operation
DE2045740A1 (en) * 1970-09-16 1972-03-23 J.M. Voith GmbH Maschinenfabrik, 7920 Heidenheim Device for the exact parallel juxtaposition of two long machine parts, in particular press rolls
FR2342140A1 (en) * 1976-02-25 1977-09-23 Morando Spa Off Rolling system for clay etc. - comprises fixed roll and horizontally displaceable roll for varying roll gap
DE2744990A1 (en) * 1977-10-06 1979-04-12 Kuesters Eduard Calendar roller adjustment - has a defined arc of variable radius to position rollers to determine pressure between them
FR2509631A1 (en) * 1981-07-16 1983-01-21 Ferrero Giacomo CYLINDER SHREDDER WITH HYDRAULIC CONTROL AND SAFETY
US4519757A (en) * 1984-01-17 1985-05-28 Magna-Graphics Corporation Web surface treating apparatus
US4810179A (en) * 1988-01-27 1989-03-07 Marshall & Williams Company Force indicator for casting machines

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DE1004458B (en) * 1953-06-09 1957-03-14 Koppers Gmbh Heinrich Roller mill
DE2704243A1 (en) * 1977-02-02 1978-08-03 Kloeckner Humboldt Deutz Ag ROLLER MILL
DE3308417A1 (en) * 1982-03-20 1983-09-22 Henry Simon Ltd., Stockport, Cheshire Roller mill

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE28476C (en) * 1965-04-30 H. bauermeister in Hamburg Device for adjusting the rollers of roller mills during operation
DE2045740A1 (en) * 1970-09-16 1972-03-23 J.M. Voith GmbH Maschinenfabrik, 7920 Heidenheim Device for the exact parallel juxtaposition of two long machine parts, in particular press rolls
FR2342140A1 (en) * 1976-02-25 1977-09-23 Morando Spa Off Rolling system for clay etc. - comprises fixed roll and horizontally displaceable roll for varying roll gap
DE2744990A1 (en) * 1977-10-06 1979-04-12 Kuesters Eduard Calendar roller adjustment - has a defined arc of variable radius to position rollers to determine pressure between them
FR2509631A1 (en) * 1981-07-16 1983-01-21 Ferrero Giacomo CYLINDER SHREDDER WITH HYDRAULIC CONTROL AND SAFETY
US4519757A (en) * 1984-01-17 1985-05-28 Magna-Graphics Corporation Web surface treating apparatus
US4810179A (en) * 1988-01-27 1989-03-07 Marshall & Williams Company Force indicator for casting machines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KUNSTSTOFFE, Band 79, Nr. 1, Januar 1989, Seiten 37-41; G. ALICH: "Schichtdickenregelungen in Auftragswerken" *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4435935A1 (en) * 1994-10-07 1996-04-11 Rieter Werke Haendle Roll mill with adjustment of roll gap width
DE4435935C3 (en) * 1994-10-07 2003-11-06 Rieter Werke Haendle Method of adjusting the nip of a rolling mill and rolling mill
WO2014116157A1 (en) * 2013-01-28 2014-07-31 Oneday Wall Ab Machine and manufacturing method for building board
US9694566B2 (en) 2013-01-28 2017-07-04 Oneday Wall Ab Machine and manufacturing method for building board
RU2637677C2 (en) * 2013-01-28 2017-12-06 Уандей Уолл Аб Machine and method of manufacturing construction panel
US10189234B2 (en) 2013-01-28 2019-01-29 Oneday Wall Ab Machine and manufacturing method for building board

Also Published As

Publication number Publication date
EP0344410A3 (en) 1991-04-17
DE3818540A1 (en) 1989-12-07

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