EP1997584B1 - Grinding assembly - Google Patents
Grinding assembly Download PDFInfo
- Publication number
- EP1997584B1 EP1997584B1 EP08150994A EP08150994A EP1997584B1 EP 1997584 B1 EP1997584 B1 EP 1997584B1 EP 08150994 A EP08150994 A EP 08150994A EP 08150994 A EP08150994 A EP 08150994A EP 1997584 B1 EP1997584 B1 EP 1997584B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- assembly according
- roll
- roll shell
- outer circumferential
- 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.)
- Not-in-force
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/363—Single-purpose machines or devices for grinding surfaces of revolution in situ
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/37—Single-purpose machines or devices for grinding rolls, e.g. barrel-shaped rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/50—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground, e.g. strings
Definitions
- the invention relates to an arrangement for grinding the outer shell surface of a shoe press roll of a machine for producing and / or finishing a paper, cardboard or other fibrous web, wherein the shoe press roll has a flexible roll shell, which is pressed by a pressing element with concave pressing surface to a counter roll ,
- the surface quality of the roll mantle is of crucial importance.
- the object of the invention is therefore to extend the life of the roll shell with the simplest possible means and while ensuring the highest possible smoothing effect.
- this object is achieved in that at least one grinding device with a, with the outer shell surface coming into contact grinding surface is axially traversable on the outer shell surface and the Roll shell on the inside opposite the grinding surface supported on a support bar.
- the roll shell can be ground in the machine. This extends the life and makes disassembly of the roll shell unnecessary.
- the support strip In order to enable a flexible contact pressure of the support strip over the length of the roll mantle, the support strip should be designed to be flexible at least in the radial direction (with respect to the roll mantle).
- the support strip also consist of several axially juxtaposed elements.
- the support strip should preferably be pressed by pneumatic actuators to the inside of the roll shell.
- the flexible contact pressure in particular with compressed air, is intended to prevent an overpressing of the roll mantle or a clamping of the roll mantle between the support strip and the grinding surface.
- the grinding surface should be pressed against the shell outer surface, which is possible because of the support strip.
- the contact pressure should be between 5 and 50 kPa, preferably between 10 and 30 kPa.
- This contact pressure of the grinding surface can be controlled away or force controlled.
- the force-controlled contact pressure is advantageous for a uniform removal during grinding.
- the grinding device should be arranged in the 3 or 9 o'clock position of the roll shell.
- the grinding surface can be formed by at least one rotating grinding element, for example a grinding stone or a grinding belt.
- the abrasive surface should be formed by at least one static abrasive element, preferably a grid screen.
- a quasi-static grinding element in the form of an abrasive belt may also be advantageous, which is wound up very slowly, preferably continuously, in order to ensure as uniform a grinding sharpness as possible.
- the roll shell must be set in rotation at least during grinding by a drive.
- the necessary drive should be arranged in the interest of compactness within the roll shell.
- An optimal grinding effect results when the speed of the outer shell surface during grinding between 500 and 2000 m / min, preferably between 800 and 1500 m / min.
- the grinding device has at least two grinding surfaces of different roughness. In this way, machining with the rough and the fine grinding surface without conversion can start from the same grinding device.
- the average surface roughness of the grinding surfaces should be between 0.1 and 1 .mu.m, preferably between 0.5 and 0.7 .mu.m.
- the outer surface should be machined one after another with sanding surfaces with grit levels of 80, 120, 220 and 400.
- the grinding device should have a discharge device for removing the grinding dust, preferably in the form of a suction device.
- the grinding device has a cooling device for the roll shell. Since the existing plastic, flexible roll shell is relatively sensitive to heat, the heat generated by the grinding should be dissipated, the cooling should preferably be done with air or a fluid.
- the shoe press roll 3 is a flexible roll shell 4, which is pressed by a hydraulic pressure element 8 with concave pressing surface to the counter roll 5 out.
- the concave pressing surface leads to the formation of an extended smoothing gap, which allows for an intensive, but volume-saving smoothing.
- the grinding head 10 of the grinding device 6 is force-controlled by a pressing element 12 against the outer circumferential surface of the roll shell 4.
- the grinding device 6 is arranged here in the 3 o'clock position of the roll mantle 4.
- This support strip 2 is made of flexible material and is pressed by a pneumatic actuator 13 over the length of the roll shell 4 flexible to the grinding head 10.
- the actuator 13 as well as the contact pressure element 8 are supported on the support 7 of the shoe press roll 3.
- the grinding device 6 is arranged axially traversable along the roll shell 4.
- the grinding device 6 moves during grinding in a direction pointing from the finer grinding surface 9a to the rougher grinding surface 9b.
- the grinding head 10 should delimit the space with the grinding surfaces 9 from the environment, which can be improved by elastic seals 14 between the grinding head 10 and the roll shell 4.
- the roll shell 4 Since the grinding surfaces 9 are fixed here in the form of a grid screen, the roll shell 4 must be driven at least during grinding.
- the rotation is to be chosen so that the speed of the outer circumferential surface of the roll shell 4 is between 800 and 1500 m / min.
- the mean roughness of the grinding surfaces 9 is between 0.5 and 0.7 microns.
- the grinding head 10 is further connected via a connection 11 with a suction device. Their negative pressure causes the extraction of the grinding dust and the air heated by the grinding.
Abstract
Description
Die Erfindung betrifft eine Anordnung zum Schleifen der Mantelaußenfläche einer Schuhpresswalze einer Maschine zur Herstellung und/oder Veredlung einer Papier-, Karton- oder einer anderen Faserstoffbahn, wobei die Schuhpresswalze einen flexiblen Walzenmantel besitzt, welcher von einem Anpresselement mit konkaver Pressfläche zu einer Gegenwalze gedrückt wird.The invention relates to an arrangement for grinding the outer shell surface of a shoe press roll of a machine for producing and / or finishing a paper, cardboard or other fibrous web, wherein the shoe press roll has a flexible roll shell, which is pressed by a pressing element with concave pressing surface to a counter roll ,
Es sind Vorrichtungen zum Schleifen der Mantelfläche von zylindrischen Walzen bekannt, wobei zur Bearbeitung kein Ausbau der Walze nötig ist (z.B.
In den letzten Jahren wurden zunehmend auch Schuhpresswalzen zur Glättung von Faserstoffbahnen eingesetzt. Dabei werden, wie bei der Entwässerung der Faserstoffbahn, Walzenmäntel aus polymeren Werkstoffen verwendet (siehe z.B.
Für das Erreichen eines guten Glättergebnisses ist die Oberflächenqualität des Walzenmantels von entscheidender Bedeutung.To achieve a good smoothing result, the surface quality of the roll mantle is of crucial importance.
Im Betrieb kann es jedoch vorkommen, dass Walzenmäntel über die Bahnbreite ungleichmäßig verschleißen, beispielsweise durch abrasive Füllstoffe in der Faserstoffbahn. Dies kann im weiteren Verlauf zu einem ungleichmäßigen Satinageergebnis hinsichtlich Glanz und Glätte führen.In operation, however, it may happen that roll shells wear unevenly over the web width, for example, by abrasive fillers in the fibrous web. This can lead to a non-uniform calendering result in terms of gloss and smoothness in the further course.
Überschreitet der ungleichmäßige Verschleiß ein bestimmtes Niveau, so muss gegenwärtig der Walzenmantel durch einen Neuen ersetzt werden, was kosten- und zeitintensiv ist.If the uneven wear exceeds a certain level, it is currently necessary to replace the roll shell with a new one, which is costly and time-consuming.
Die Aufgabe der Erfindung ist es daher, die Lebensdauer des Walzenmantels mit möglichst einfachen Mitteln und bei Gewährleistung einer möglichst hohen Glättwirkung zu verlängern.The object of the invention is therefore to extend the life of the roll shell with the simplest possible means and while ensuring the highest possible smoothing effect.
Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass wenigstens eine Schleifvorrichtung mit einer, mit der Mantelaußenfläche in Kontakt kommenden Schleiffläche axial an der Mantelaußenfläche traversierbar ist und sich der Walzenmantel auf der Innenseite gegenüber der Schleiffläche an einer Stützleiste abstützt.According to the invention, this object is achieved in that at least one grinding device with a, with the outer shell surface coming into contact grinding surface is axially traversable on the outer shell surface and the Roll shell on the inside opposite the grinding surface supported on a support bar.
Auf diese Weise kann der Walzenmantel in der Maschine geschliffen werden. Dies verlängert die Lebensdauer und macht einen Ausbau des Walzenmantels überflüssig.In this way, the roll shell can be ground in the machine. This extends the life and makes disassembly of the roll shell unnecessary.
Während die Traversierbarkeit der Schleifvorrichtung den Aufwand vermindert, ermöglicht die Abstützung des flexiblen Walzenmantels mit der Stützleiste erst das genaue Schleifen.While the traversability of the grinding device reduces the effort, the support of the flexible roll mantle with the support strip allows only the exact grinding.
Um über die Länge des Walzenmantels eine flexible Anpressung der Stützleiste zu ermöglichen, sollte die Stützleiste zumindest in radialer Richtung (bezüglich des Walzenmantels) flexibel ausgebildet sein. Hierzu kann die Stützleiste auch aus mehreren, axial nebeneinander angeordneten Elemente bestehen.In order to enable a flexible contact pressure of the support strip over the length of the roll mantle, the support strip should be designed to be flexible at least in the radial direction (with respect to the roll mantle). For this purpose, the support strip also consist of several axially juxtaposed elements.
Dabei sollte die Stützleiste vorzugsweise über pneumatische Stellglieder an die Innenseite des Walzenmantels anpressbar sein. Die flexible Anpressung, insbesondere mit Druckluft, soll eine Überpressung des Walzenmantels bzw. ein Festklemmen des Walzenmantels zwischen Stützleiste und Schleiffläche verhindern.The support strip should preferably be pressed by pneumatic actuators to the inside of the roll shell. The flexible contact pressure, in particular with compressed air, is intended to prevent an overpressing of the roll mantle or a clamping of the roll mantle between the support strip and the grinding surface.
Wegen der Flexibilität des Walzenmantels und zur Intensivierung der Schleifwirkung sollte die Schleiffläche an die Mantelaußenfläche anpressbar sein, was wegen der Stützleiste möglich ist. Dabei sollte der Anpressdruck zwischen 5 und 50 kPa, vorzugsweise zwischen 10 und 30 kPa liegen.Because of the flexibility of the roll shell and to intensify the abrasive effect, the grinding surface should be pressed against the shell outer surface, which is possible because of the support strip. The contact pressure should be between 5 and 50 kPa, preferably between 10 and 30 kPa.
Diese Anpressung der Schleiffläche kann weggesteuert oder kraftgesteuert erfolgen. Insbesondere die kraftgesteuerte Anpressung ist jedoch für einen gleichmäßigen Abtrag während des Schleifens von Vorteil.This contact pressure of the grinding surface can be controlled away or force controlled. In particular, the force-controlled contact pressure is advantageous for a uniform removal during grinding.
Damit sich die Durchbiegung des Walzenmantels auf Grund des Eigengewichts möglichst wenig auf das Schleifergebnis auswirkt, sollte die Schleifvorrichtung in der 3 oder 9 Uhr-Position des Walzenmantels angeordnet sein.So that the deflection of the roll shell due to its own weight has as little effect on the grinding result, the grinding device should be arranged in the 3 or 9 o'clock position of the roll shell.
Dabei kann die Schleiffläche von zumindest einem rotierenden Schleifelement, beispielsweise einem Schleifstein oder einem Schleifband, gebildet werden.In this case, the grinding surface can be formed by at least one rotating grinding element, for example a grinding stone or a grinding belt.
Vorzugsweise sollte die Schleiffläche jedoch von wenigstens einem statischen Schleifelement, vorzugsweise einer Gitterleinwand gebildet werden. Vorteilhaft kann aber auch ein quasi-statisches Schleifelement in Form eines Schleifbandes sein, welches zur Gewährleistung einer möglichst gleichbleibenden Schleifschärfe sehr langsam, vorzugsweise kontinuierlich aufgewickelt wird.Preferably, however, the abrasive surface should be formed by at least one static abrasive element, preferably a grid screen. However, a quasi-static grinding element in the form of an abrasive belt may also be advantageous, which is wound up very slowly, preferably continuously, in order to ensure as uniform a grinding sharpness as possible.
Zur Gewährleistung einer ausreichend hohen Relativgeschwindigkeit zwischen dem statischen Schleifelement und Walzenmantel muss jedoch der Walzenmantel zumindest während des Schleifens von einem Antrieb in Rotation versetzt werden.To ensure a sufficiently high relative speed between the static grinding element and the roll shell, however, the roll shell must be set in rotation at least during grinding by a drive.
Der dafür nötige Antrieb sollte im Interesse der Kompaktheit innerhalb des Walzenmantels angeordnet werden. Eine optimale Schleifwirkung ergibt sich dabei, wenn die Geschwindigkeit der Mantelaußenfläche während des Schleifens zwischen 500 und 2000 m/min, vorzugsweise zwischen 800 und 1500 m/min liegt.The necessary drive should be arranged in the interest of compactness within the roll shell. An optimal grinding effect results when the speed of the outer shell surface during grinding between 500 and 2000 m / min, preferably between 800 and 1500 m / min.
Für das Erreichen der erforderlichen Oberflächengüte des Walzenmantels sollte dieser erst mit einer relativ rauen und danach mit einer feineren Schleiffläche bearbeitet werden. Dies kann in zwei Durchgängen mit verschiedenen Schleifflächen oder mit mehreren Schleifvorrichtungen erfolgen.To achieve the required surface quality of the roll shell this should be processed first with a relatively rough and then with a finer grinding surface. This can be done in two passes with different sanding surfaces or with multiple sanders.
Jedoch ist es von Vorteil, wenn die Schleifvorrichtung zumindest zwei Schleifflächen unterschiedlicher Rauhigkeit besitzt. Auf diese Weise kann von der gleichen Schleifvorrichtung eine Bearbeitung mit der rauen und der feinen Schleiffläche ohne Umrüsten ausgehen.However, it is advantageous if the grinding device has at least two grinding surfaces of different roughness. In this way, machining with the rough and the fine grinding surface without conversion can start from the same grinding device.
Dabei sollte die mittlere Rautiefe der Schleifflächen zwischen 0,1 und 1 µm, vorzugsweise zwischen 0,5 und 0,7 µm liegen.The average surface roughness of the grinding surfaces should be between 0.1 and 1 .mu.m, preferably between 0.5 and 0.7 .mu.m.
Unabhängig davon, ob das Schleifen mit einem oder mehreren Schleifvorrichtungen erfolgt, sollte die Außenmantelfläche jedoch mit Schleifflächen mit Körnungsstufen von 80, 120, 220 und 400 nacheinander bearbeitet werden.Regardless of whether the grinding is done with one or more sanding devices, the outer surface should be machined one after another with sanding surfaces with grit levels of 80, 120, 220 and 400.
Zur Gewährleistung einer möglichst hohen Glätte der Außenmantelfläche sollte eine Verschmutzung vermieden werden. Daher sollte die Schleifvorrichtung eine Abführeinrichtung zum Entfernen der Schleifstäube, vorzugsweise in Form einer Absaugeinrichtung besitzen.To ensure the highest possible smoothness of the outer surface area contamination should be avoided. Therefore, the grinding device should have a discharge device for removing the grinding dust, preferably in the form of a suction device.
Außerdem ist es vorteilhaft, wenn die Schleifvorrichtung eine Kühleinrichtung für den Walzenmantel besitzt. Da der aus Kunststoff bestehende, flexible Walzenmantel relativ wärmeempfindlich ist, sollte die durch das Schleifen entstehende Wärme abführt werden, wobei die Kühlung vorzugsweise mit Luft oder einem Fluid erfolgen sollte.Moreover, it is advantageous if the grinding device has a cooling device for the roll shell. Since the existing plastic, flexible roll shell is relatively sensitive to heat, the heat generated by the grinding should be dissipated, the cooling should preferably be done with air or a fluid.
Nachfolgend soll die Erfindung an einem Ausführungsbeispiel näher erläutert werden. In der beigefügten Zeichnung zeigt:
- Figur 1:
- einen schematischen Querschnitt durch eine Glättanordnung und
- Figur 2:
- einen Teilschnitt durch die
Schleifvorrichtung 6.
- FIG. 1:
- a schematic cross section through a smoothing arrangement and
- FIG. 2:
- a partial section through the grinding device. 6
Zur Glättung wird die Faserstoffbahn 1 gemäß
Dabei besteht die Schuhpresswalze 3 einen flexiblen Walzenmantel 4, der von einem hydraulischen Anpresselement 8 mit konkaver Pressfläche zur Gegenwalze 5 hin gedrückt wird. Durch die konkave Pressfläche kommt es zur Bildung eines verlängerten Glättspaltes, was eine intensive, aber volumenschonende Glättung ermöglicht.Here, the shoe press roll 3 is a
Da die erreichbare Glätte bei der Faserstoffbahn 1 wesentlich von der Glätte der Außenmantelfläche des Walzenmantels 4 abhängt, wird diese bei Bedarf von einer Schleifvorrichtung 6 glatt geschliffen.Since the achievable smoothness in the fibrous web 1 depends essentially on the smoothness of the outer circumferential surface of the
Hierzu wird der Schleifkopf 10 der Schleifvorrichtung 6 von einem Presselement 12 kraftgesteuert gegen die Außenmantelfläche des Walzenmantels 4 gedrückt. Damit die Durchbiegung des Walzenmantels 4 das Schleifergebnis möglichst wenig beeinflusst, ist die Schleifvorrichtung 6 hier in der 3 Uhr-Position des Walzenmantels 4 angeordnet.For this purpose, the grinding
Wegen der Flexibilität des Walzenmantels 4 stützt sich dieser an der Innenseite gegenüber dem Schleifkopf 10 auf einer Stützleiste 2 ab. Diese Stützleiste 2 besteht aus flexiblem Material und wird von einem pneumatischen Stellglied 13 über die Länge des Walzenmantels 4 flexibel zum Schleifkopf 10 gedrückt.Because of the flexibility of the
Das Stellglied 13 wie auch das Anpresselement 8 stützen sich am Träger 7 der Schuhpresswalze 3 ab.The
Die Schleifvorrichtung 6 ist axial entlang dem Walzenmantel 4 traversierbar angeordnet.The
Bei der in
Wenn, wie in
Unabhängig von der Art und Anzahl der Schleifflächen 9 sollte der Schleifkopf 10 den Raum mit den Schleifflächen 9 gegenüber der Umgebung abgrenzen, was durch elastische Dichtungen 14 zwischen dem Schleifkopf 10 und dem Walzenmantel 4 noch verbessert werden kann.Regardless of the type and number of grinding surfaces 9, the grinding
Da die Schleifflächen 9 hier in Form einer Gitterleinwand feststehend sind, muss der Walzenmantel 4 zumindest während des Schleifens angetrieben werden. Dabei ist die Rotation so zu wählen, dass die Geschwindigkeit der Außenmantelfläche des Walzenmantels 4 zwischen 800 und 1500 m/min liegt.Since the grinding surfaces 9 are fixed here in the form of a grid screen, the
Die mittlere Rautiefe der Schleifflächen 9 beträgt zwischen 0,5 und 0,7 µm.
Der Schleifkopf 10 ist des Weiteren über einen Anschluss 11 mit einer Saugeinrichtung verbunden. Deren Unterdruck bewirkt die Absaugung der Schleifstäube und der vom Schleifen erwärmten Luft.The mean roughness of the grinding surfaces 9 is between 0.5 and 0.7 microns.
The grinding
Claims (12)
- Assembly for grinding the outer circumferential surface of a shoe press roll (3) of a machine for producing and/or finishing a paper, board or other fibrous web (1), the shoe press roll (3) having a flexible roll shell (4) which is pressed towards a mating roll (5) by a pressing element (8) having a concave pressing surface,
it being possible for at least one grinding device (6) having a grinding surface (9) coming into contact with the outer circumferential surface to be traversed axially on the outer circumferential surface, and the roll shell (4) being supported on a supporting bar (2) on the inside opposite the grinding surface (9). - Assembly according to Claim 1,
characterized in that
the supporting bar (2) is designed to be flexible, at least in the radial direction. - Assembly according to Claim 1 or 2,
characterized in that
the supporting bar (2) can be pressed against the inside of the roll shell (4), preferably by pneumatic actuators (13). - Assembly according to one of the preceding claims,
characterized in that
the grinding surface (9) can be pressed against the outer circumferential surface. - Assembly according to Claim 4,
characterized in that
the pressing action is carried out under force control. - Assembly according to one of the preceding claims,
characterized in that
the grinding device (6) is arranged in the 3 o'clock or 9 o'clock position of the roll shell (4). - Assembly according to one of the preceding claims,
characterized in that
the grinding surface (9) is formed by at least one rotating grinding element. - Assembly according to one of the preceding claims,
characterized in that
the grinding surface (9) is formed by at least one static grinding element, and the roll shell (4) has a drive, preferably located on the inside. - Assembly according to Claim 8,
characterized in that
the speed of the outer circumferential surface during the grinding is between 500 and 2000 m/min, preferably between 800 and 1500 m/min. - Assembly according to one of the preceding claims,
characterized in that
the grinding device (6) has at least two grinding surfaces (9) of different roughness. - Assembly according to one of the preceding claims,
characterized in that
the mean roughness of the grinding surfaces is between 0.1 and 1 µm, preferably between 0.5 and 0.7 µm. - Assembly according to one of the preceding claims,
characterized in that
the grinding device (6) has an extraction device for the removal of the grinding dust, preferably in the form of a suction device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL08150994T PL1997584T3 (en) | 2007-05-26 | 2008-02-04 | Grinding assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007024810A DE102007024810A1 (en) | 2007-05-26 | 2007-05-26 | grinding system |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1997584A2 EP1997584A2 (en) | 2008-12-03 |
EP1997584A3 EP1997584A3 (en) | 2009-03-04 |
EP1997584B1 true EP1997584B1 (en) | 2010-05-05 |
Family
ID=39577864
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08150994A Not-in-force EP1997584B1 (en) | 2007-05-26 | 2008-02-04 | Grinding assembly |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1997584B1 (en) |
AT (1) | ATE466689T1 (en) |
DE (2) | DE102007024810A1 (en) |
PL (1) | PL1997584T3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103358197A (en) * | 2013-07-22 | 2013-10-23 | 天长市天力液压机械有限责任公司 | Rubber roll grinding machine |
CN103949476B (en) * | 2014-04-24 | 2016-01-06 | 邯钢集团邯宝钢铁有限公司 | A kind of rolling mill for hot rolled planks and strips backing roll stock removal method for quick predicting |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3102526C2 (en) * | 1981-01-27 | 1985-05-23 | J.M. Voith Gmbh, 7920 Heidenheim | Pressing device for dewatering webs, in particular paper webs |
DE29915022U1 (en) * | 1999-08-27 | 1999-10-21 | Schmoetzer Hubert | Device for the material-removing processing of the lateral surface of cylindrical rollers of a printing press |
JP2003213590A (en) * | 2001-11-12 | 2003-07-30 | Mitsubishi Heavy Ind Ltd | Paper sheet calendering machine |
FI117791B (en) * | 2005-06-17 | 2007-02-28 | Metso Paper Inc | Procedure for grinding a bombable roller |
-
2007
- 2007-05-26 DE DE102007024810A patent/DE102007024810A1/en not_active Withdrawn
-
2008
- 2008-02-04 DE DE502008000609T patent/DE502008000609D1/en active Active
- 2008-02-04 AT AT08150994T patent/ATE466689T1/en active
- 2008-02-04 PL PL08150994T patent/PL1997584T3/en unknown
- 2008-02-04 EP EP08150994A patent/EP1997584B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1997584A3 (en) | 2009-03-04 |
EP1997584A2 (en) | 2008-12-03 |
PL1997584T3 (en) | 2010-10-29 |
DE502008000609D1 (en) | 2010-06-17 |
ATE466689T1 (en) | 2010-05-15 |
DE102007024810A1 (en) | 2008-11-27 |
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