EP2063022B1 - Device for changing a fabric of a paper machine - Google Patents
Device for changing a fabric of a paper machine Download PDFInfo
- Publication number
- EP2063022B1 EP2063022B1 EP20080169100 EP08169100A EP2063022B1 EP 2063022 B1 EP2063022 B1 EP 2063022B1 EP 20080169100 EP20080169100 EP 20080169100 EP 08169100 A EP08169100 A EP 08169100A EP 2063022 B1 EP2063022 B1 EP 2063022B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- belt
- rollers
- clothing
- chain
- drive
- 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
Links
- 239000004744 fabric Substances 0.000 title description 11
- 239000013013 elastic material Substances 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 description 10
- 238000005452 bending Methods 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 7
- 230000007704 transition Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/001—Wire-changing arrangements
Definitions
- a device which comprises a plurality of individual rollers, which served essentially to assist the collection of the clothing.
- a disadvantage of the FI-B-103421 was that the device to support the collection of the stringing a variety of individual roles and thus items included and a cantilever or bending beam for lifting to form a gap was still needed.
- Another disadvantage of FI-B-103421 was that the rollers or rolling elements were not transported back to a beginning tape. Furthermore, the load was transmitted to the rollers or rolling elements via the axes of the rolling elements. The axes in turn limited the maximum transferable load.
- the changing device according to the WO 2006/106178 comprises a first device with a frame, a pressure chamber and a belt circulating on rollers and a second device of the same construction arranged under this first device.
- each of the two devices has a pressure chamber.
- the frames of the pressure chamber absorb the forces of the upper and lower parts of the stool.
- the bands of the device are not loaded.
- pressure is introduced into the pressure chambers.
- the introduced pressure in the pressure chamber causes the load, which was loaded on the frame in the operating state, to be transmitted to the belts and the pressure chambers.
- the frame side are thereby separated from each other as the load is transmitted from the frame members to the pressure chambers and the bands.
- a gap is created between the frame or the upper part of the chair and the lower part of the chair, through which the covering can be threaded.
- the pressure introduced into the pressure chambers is also utilized so that the introduced band can slide substantially without friction. If the covering is guided during the change in the resulting gap between the bands of the device, then the covering can be introduced into the device with the aid of the bands, for example by coupling a drive motor to at least one roller of the device.
- a disadvantage of the device according to the WO 2006/106178 was that in order to keep the friction low a lubricant had to be used.
- the object of the invention is therefore to provide a solution for a clothing changing device, with the one hand, the friction during the clothing change can be kept low, without consuming measures as in the WO 2006/106178 and on the other hand to avoid cantilever or bending beams, ranging from the leader side of the paper machine to the drive side of the same and beyond, in order to lift the driver's side stiffening when changing the clothing can and to provide a gap for changing the clothing available.
- this object is achieved by a device for changing a fabric of a paper machine with the features of claim 1.
- the core transfers the load to the rollers in the load zone. Since the roll length can be increased almost unlimited in such an embodiment, it is also possible in such a configuration to increase the load almost unlimited.
- the rollers are connected together by a connecting device to form a band.
- the chain is supported on at least part of its outer circumference by another belt, preferably a band of an elastic or rubber-elastic material such as plastic or rubber is coated.
- the weight of the leader-side seat with attachments loads in such an arrangement on the upper and the lower car and on the Covering in between.
- Cantilever or bending beams which take over the weight of the driver's side stiffening with attachments when changing the clothing, are not needed.
- the rotating belt having a plurality of rollers may be at least partially surrounded by a chain.
- the chain in turn, can be provided with a toothing, wherein preferably the toothing does not extend over the entire width of the wedge, in order not to hinder a rolling on the rolling elements.
- the cantilevers or bending beams 40.1, 40.2 required for lifting according to the prior art of the framing parts run from the driver's side 100 to the drive side 120 of the paper machine.
- the supports 40.1, 40.2 are in turn anchored with supports 110.1, 110.2 either on the ceiling or on the ground, so that the forces of the stasis 10 are introduced via the supports 110.1, 11.0.2 in the ground or in the ceiling.
- the resulting from the concern of the carrier openings 130.1, 130.2 on the driver's side are in FIG. 2 also shown.
- Pressure chambers such as those from the WO 2006/106178 have been known for lifting the stiffening are in an embodiment as in FIG. 3 not shown necessary.
- the upper unit 312.1 consists of two subunits 312.1.1, 312.1.2 in order to support the core 325.1 in the middle 327.
- the upper unit 312.1 can also be divided into more than two subunits.
- the lower unit can also be divided into several subunits.
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Wechseln einer Bespannung einer Papiermaschine.The invention relates to a device for changing a fabric of a paper machine.
Um eine endlose Bespannung, beispielsweise einen Filz für eine Pressenpartie oder ein Sieb für eine Siebpartie in die Papiermaschine einzuziehen, waren bislang in Papiermaschinen Cantilever- oder Biegeträger eingebaut, die von der Führerseite zur Triebseite und über die Triebseite hinaus reichten. Mit Hilfe der Cantilever- oder Biegeträger wurde die führerseitige Stuhlung zum Bespannungswechsel angehoben und Zwischenstücke entfernt, so dass Stuhlungsöffnungen entstanden sind, über die die Bespannung eingezogen werden konnte. Auch beim finnischen Patent
Um die Bespannung einziehen zu können, war bei der
Aus der
Ganz entscheidend für den Aufbau gemäß der
Im Betriebszustand nehmen die Rahmen der Druckkammer die Kräfte des oberen und des unteren Stuhlungsteils auf. Die Bänder der Vorrichtung sind nicht belastet.In operation, the frames of the pressure chamber absorb the forces of the upper and lower parts of the stool. The bands of the device are not loaded.
Soll ein Bespannungswechsel durchgeführt werden, so wird Druck in die Druckkammern eingeleitet. Der eingeleitete Druck in der Druckkammer führt dazu, dass die Last, die im Betriebszustand auf den Rahmen lastete, auf die Bänder und die Druckkammern übertragen wird. Die Rahmenseite werden dadurch voneinander separiert, und zwar in dem Maße, wie die Last von den Rahmenteilen auf die Druckkammern und die Bänder übertragen werden. Dies führt dazu, dass zwischen dem Rahmen beziehungsweise dem oberen Teil der Stuhlung und dem unteren Teil der Stuhlung ein Spalt entsteht, durch den die Bespannung eingefädelt werden kann. Um dies zu unterstützen ist bei der
Nachteilig an der Vorrichtung gemäß der
Aufgabe der Erfindung ist es somit, eine Lösung für eine Bespannungswechselvorrichtung anzugeben, mit der zum einen die Reibung beim Bespannungswechsel gering gehalten werden kann, ohne aufwendige Maßnahmen wie in der
Erfindungsgemäß wird diese Aufgabe durch eine Vorrichtung zum Wechseln einer Bespannung einer Papiermaschine mit den Merkmalen des Anspruchs 1 gelöst. Dabei überträgt der Kern die Last auf die Rollen in der Lastzone. Da die Rollenlänge bei einer derartigen Ausführungsform nahezu unbegrenzt erhöht werden kann, ist es bei einer derartigen Ausgestaltung auch möglich die Last nahezu unbegrenzt zu erhöhen.According to the invention this object is achieved by a device for changing a fabric of a paper machine with the features of claim 1. The core transfers the load to the rollers in the load zone. Since the roll length can be increased almost unlimited in such an embodiment, it is also possible in such a configuration to increase the load almost unlimited.
Erfindungsgemäß sind die Rollen durch eine Verbindungsvorrichtung miteinander zu einem Band verbunden sind.According to the invention, the rollers are connected together by a connecting device to form a band.
Im Gegensatz zur Ausführung gemäß der
Bevorzugt wird das umlaufende Band, das die einzelnen Rollen umfasst, wenigstens teilweise von einem weiteren Band, die bevorzugt als Kette ausgebildet ist, umschlungen.Preferably, the circulating band, which comprises the individual rollers, at least partially by another band, which is preferably formed as a chain, wrapped.
Die Verwendung von Ketten ist vorteilhaft, um die Bespannung zu schonen und gleichmäßig zu belasten, da damit vermieden wird, dass die Einzelrollen wie bei der
Um bei Verwendung einer Kette als umlaufendes Band die Bespannung auf einer homogenen Oberfläche ohne die störenden Übergänge zwischen einzelnen Kettengliedern aufliegen lassen zu können, ist in einer weiteren Ausgestaltung der Erfindung vorteilhaft vorgesehen, dass die Kette wenigstens auf einem Teil ihres Außenumfangs von einem weiteren Band, bevorzugt einem Band aus einem elastischen oder gummielastischen Material wie Kunststoff oder Kautschuk ummantelt wird.In order to be able to rest the clothing on a homogeneous surface without the disturbing transitions between individual chain links when using a chain as a circulating belt, it is advantageously provided in a further embodiment of the invention that the chain is supported on at least part of its outer circumference by another belt, preferably a band of an elastic or rubber-elastic material such as plastic or rubber is coated.
Erfindungsgemäß besteht die Vorrichtung aus wenigstens zwei Einheiten mit einer Vielzahl von Rollen, wobei die Rollen durch eine Verbindungsvorrichtung miteinander zu einem Band verbunden sind, nämlich eine oberhalb des Spaltes für die Bespannung angeordnete obere Einheit und eine darunter liegende Einheit, so dass zwischen der oberen Einheit und der unteren Einheit dann der Spalt ausgebildet, durch den die Bespannung geführt wird.According to the invention, the device consists of at least two units with a plurality of rollers, wherein the rollers are connected together by a connecting device to form a band, namely an upper unit arranged above the string for the covering and an underlying unit, so that between the upper unit and the lower unit then formed the gap through which the fabric is guided.
Das Gewicht der führerseitigen Stuhlung mit Anbauteilen lastet bei einer derartigen Anordnung auf dem oberen und dem unteren Wagen und auf der Bespannung dazwischen. Cantilever- oder Biegeträger, die das Gewicht der führerseitigen Stuhlung mit Anbauteilen beim Bespannungswechsel übernehmen, werden nicht benötigt.The weight of the leader-side seat with attachments loads in such an arrangement on the upper and the lower car and on the Covering in between. Cantilever or bending beams, which take over the weight of the driver's side stiffening with attachments when changing the clothing, are not needed.
Dies führt dazu, dass, obwohl erfindungsgemäß ein sehr reibarmes Rollensystem vorliegt, bei einem Wechsel der Bespannung diese hohen Belastungen ausgesetzt ist, wenn sie zwischen den gegenüberliegenden Wagen hindurchbewegt wird. Bevorzugt ist daher vorgesehen, dass in einer Weiterbildung der Erfindung wenigstens eine der Einheiten einen Antrieb aufweist.As a result, although according to the invention there is a very low-friction roller system, when the clothing is changed, it is exposed to these high loads when it is moved between the opposite carriages. It is therefore preferably provided that in a development of the invention at least one of the units has a drive.
Um die Kraft des oder der Antriebe auf das umlaufende Band zu übertragen, kann das umlaufende Band mit mehreren Rollen von einer Kette wenigstens teilweise umgeben sein. Die Kette wiederum, kann mit einer Verzahnung versehen werden, wobei bevorzugt die Verzahnung sich nicht über die gesamte Keftenbreite erstreckt, um ein Abrollen auf den Wälzkörper nicht zu behindern.In order to transfer the power of the drive (s) to the rotating belt, the rotating belt having a plurality of rollers may be at least partially surrounded by a chain. The chain in turn, can be provided with a toothing, wherein preferably the toothing does not extend over the entire width of the wedge, in order not to hinder a rolling on the rolling elements.
Anstatt einer Kette zum Antreiben kann auch ein Zahnriemen vorgesehen sein. Die Verwendung eines Zahnriemens hat den Vorteil, dass das zusätzliche Band aus Kunststoff oder elastischem, vorzugsweise gummielastischem Material, entfallen kann.Instead of a chain for driving and a toothed belt may be provided. The use of a toothed belt has the advantage that the additional band made of plastic or elastic, preferably rubber-elastic material can be omitted.
Mit der erfindungsgemäßen Vorrichtung wird eine Vorrichtung angegeben, die ohne, dass die Stuhlungsteile voneinander beispielsweise mit Hilfe von Druck oder mit Hilfe von Balken angehoben werden müssen, aufgrund der sehr niedrigen Reibung einen Bespannungswechsel in einer Papiermaschine erlaubt. Beim Bespannungswechsel wird zunächst die Bespannung vor der Maschine aufgespannt. Danach wird sie durch den Spalt, der zwischen der oberen und der unteren Einrichtung ausgebildet wird, das heißt zwischen den umlaufenden Bändern hindurch in Richtung der triebseitigen Stuhlung eingezogen. Hierbei wird das Einziehen bevorzugt durch einen Antrieb unterstützt. Zum Einziehen müssen die beiden Stuhlungsteile nicht mehr zur Ausbildung eines Spaltes mit Hilfe von Cantilever-Balken oder auch Druckvorrichtungen angehoben werden. Es werden lediglich noch Traversen benötigt, die sich von der Triebseite zur Führerseite hin erstrecken, um als Abstandshalter für den nötigen Abstand zwischen oberer und unterer Stuhlung mit der jeweils dort montierten Vorrichtung zu sorgen. Derartige Traversen sind aber in der Papiermaschine bereits vorhanden und werden beispielsweise für Querverrohrungen und Verkabelungen eingesetzt.With the device according to the invention, a device is provided which, without the stiffening parts having to be lifted from one another, for example by means of pressure or with the aid of beams, permits a change of clothing in a paper machine due to the very low friction. When changing the clothing, the clothing is first clamped in front of the machine. Thereafter, it is pulled through the gap formed between the upper and lower means, that is to say between the circulating belts, in the direction of the drive-side stiffening. Here, the retraction is preferably supported by a drive. To retract, the two parts of the bodywork no longer have to form a gap with the help of Cantilever beams or pressure devices are raised. It only requires traverses that extend from the drive side to the driver's side, to provide as a spacer for the necessary distance between upper and lower chairs with each mounted there device. However, such traverses are already present in the paper machine and are used, for example, for transverse piping and cabling.
Für den Fachmann versteht es sich, dass die oben genannten Einzelmaßnahmen untereinander kombiniert werden können, ohne vom Gedanken der Erfindung abzuweichen.It will be understood by those skilled in the art that the above individual measures may be combined with one another without departing from the spirit of the invention.
Die Erfindung soll nachfolgend anhand der Ausführungsbeispiele detailliert beschrieben werden. Es zeigen:
- Figur 1
- eine Seitenansicht einer Papiermaschine;
- Figur 2
- eine Draufsicht auf einen prinzipiellen Aufbau einer Papiermaschine mit einer Vorrichtung zum Anheben der Stuhlungsteile gemäß dem Stand der Technik;
- Figur 3
- eine Draufsicht auf eine Papiermaschine mit einer erfindungsgemäßen Vorrichtung zum Bespannungswechsel;
- Fig. 4a - b
- die Detailansicht einer erfindungsgemäßen Vorrichtung zum Bespannungswechsel;
- Figur 5
- die Detailansicht einer erfindungsgemäßen Vorrichtung zum Bespannungswechsel mit einem Antrieb.
- FIG. 1
- a side view of a paper machine;
- FIG. 2
- a plan view of a basic structure of a paper machine with a device for lifting the Stuhlungsteile according to the prior art;
- FIG. 3
- a plan view of a paper machine with a device according to the invention for clothing change;
- Fig. 4a - b
- the detailed view of a device according to the invention for changing the clothing;
- FIG. 5
- the detailed view of a device according to the invention for clothing change with a drive.
In
Die einzelnen Elemente der Pressenpartie werden von einer Stuhlung 10 aufgenommen. Des Weiteren zu erkennen ist die umlaufende Bespannung, beispielsweise ein Filz in der Pressenpartie der Papiermaschine. In vorliegender Ausführungsform ist lediglich der umlaufende Oberfilz 20 vollständig gezeigt, der umlaufende Unterfilz 22 nur abschnittsweise. Wie aus
Die zur Anhebung gemäß dem Stand der Technik der Stuhlungsteile benötigten Cantilever- oder Biegeträger 40.1, 40.2 verlaufen von der Führerseite 100 zur Triebseite 120 der Papiermaschine. Die Träger 40.1, 40.2 sind wiederum mit Stützen 110.1, 110.2 entweder an der Decke oder am Boden verankert, so dass die Kräfte der Stuhlung 10 über die Stützen 110.1, 11.0.2 in den Boden beziehungsweise in die Decke eingeleitet werden. Die sich durch das Anliegen der Träger ergebenden Öffnungen 130.1, 130.2 auf der Führerseite sind in
Gemäß der Erfindung ist nun vorgesehen, dass für einen Bespannungswechsel auf ein Anheben einzelner Stuhlungsteile wie in
Dies wird durch eine Vorrichtung in einer Anordnung einer derartigen Vorrichtung gemäß
Druckkammern, wie sie beispielsweise aus der
Erfindungsgemäß vorgesehen ist, dass die einzelnen Einheiten, nämlich die Obereinheit 212.1, 212.3 und die Untereinheit 212.2, 212.4, eine Vielzahl von über eine Verbindungseinrichtung miteinander verbundenen Rollen 270, ergebend ein umlaufendes Band, aufweisen. Durch eine derartige Anordnung kann auf die bei der
In den
Die einzelnen Einheiten 312.1, 312.2 mit einer Vielzahl von Rollen 310, die durch eine Verbindungsvorrichtung miteinander zu einem Band 305 verbunden sind, werden mittels von statischen Kernen 325.1, 325.2 an der Stuhlung befestigt. Hierbei ist die obere Einheit 312.1 über ihren Kern 325.1 an der oberen Stuhlung und die untere Einheit 312.2 über ihren Kern 325.2 an der unteren Stuhlung befestigt. Wie aus
In der Draufsicht in
Bei der Ausführungsform gemäß
Die Ausgestaltung der Vorrichtung gemäß
Um störende Übergänge zwischen einzelnen Kettengliedern durch die das umlaufende Band 305 umschlingende weitere Kette 320 zu vermeiden, kann vorgesehen sein, die weitere Kette mit einem weiteren Band 350, das bevorzugt aus einem elastischen Material, beispielsweise aus einem gummielastischen Material oder einem Kunststoff besteht, zu umschlingen. Auf diese Art und Weise werden störende Übergänge zwischen den einzelnen Kettengliedern vermieden und es ergibt sich auf Seiten der Bespannung eine homogene Oberfläche mit weitgehend gleicher Flächenlast.In order to avoid disturbing transitions between individual chain links by the circulating
Nachteilig an der in
In vorteilhafter Weise wird in einer weitergebildeten Ausführungsform gemäß
Wie aus
Der Antrieb mit Hilfe des Antriebsrades 492 kann dadurch erfolgen, dass die weitere Kette 420 das umlaufende Band 405 mit einer Vielzahl von Rollen 410 nur teilweise umschließt, wie in
Claims (10)
- Device for changing a clothing of a paper-making machine, wherein the device comprises at least two units, an upper unit (212.1, 212.3) and a lower unit (212.2, 212.4), having a multiplicity of rollers (310), wherein the two units are disposed on top of one another in order to form a gap through which the clothing is guidable, characterized in that, in order to encircle a static core (325.1, 325.2, 425.1, 425.2, 525.1, 525.2), the rollers (310) of each unit are interconnected by a connection device in order to form a belt (305), and that the belt is a chain having individual chain links wherein each chain link comprises one roller (310).
- Device according to Claim 1, characterized in that the device comprises a further belt (320) which encloses at least in part an outer circumference which is defined by the interlinked rollers.
- Device according to Claim 2, characterized in that the further belt (320) is a chain.
- Device according to Claim 3, characterized in that the chain is shrouded in an elastic belt (350).
- Device according to Claim 4, characterized in that the elastic belt (350) comprises a plastic-elastic or a rubber-elastic material.
- Device according to Claim 2, characterized in that the further belt is a toothed belt.
- Device according to one of Claims 1 to 6, characterized in that the device displays a drive (490).
- Device according to Claim 7, characterized in that the drive is disposed within the circumference which is enclosed by the further belt.
- Device according to Claim 8, characterized in that the drive (490) is provided with a toothing (494) which meshes with the further belt.
- Paper-making machine having a press and/or wire section, characterized in that the press and/or wire section displays at least one device according to one of Claims 1 to 9 for changing the clothing in the press and/or wire section.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007047858A DE102007047858A1 (en) | 2007-11-26 | 2007-11-26 | Device for changing a fabric of a paper machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2063022A1 EP2063022A1 (en) | 2009-05-27 |
EP2063022B1 true EP2063022B1 (en) | 2015-04-22 |
Family
ID=40383567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080169100 Not-in-force EP2063022B1 (en) | 2007-11-26 | 2008-11-14 | Device for changing a fabric of a paper machine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2063022B1 (en) |
DE (1) | DE102007047858A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8574401B2 (en) | 2009-11-06 | 2013-11-05 | Metso Paper, Inc. | Apparatus for inserting or removing a clothing in an industrial machine |
DE102012219518A1 (en) * | 2012-10-25 | 2014-04-30 | Metso Paper, Inc. | Device for treating fibrous web e.g. paper web designed as tape calendar, has frame that is provided to support portion of guide rollers, and is provided with sliding element to form contact surface when replacing jacket, band or wire |
DE102015203839A1 (en) | 2015-03-04 | 2016-04-21 | Voith Patent Gmbh | Device for introducing a clothing into a web forming machine |
DE102015211300A1 (en) * | 2015-06-19 | 2016-05-25 | Voith Patent Gmbh | Device and method for introducing a clothing in a web forming machine |
DE102016206474A1 (en) | 2016-04-18 | 2017-05-18 | Voith Patent Gmbh | Apparatus and method for treating a fibrous web |
DE102016206475A1 (en) | 2016-04-18 | 2017-06-08 | Voith Patent Gmbh | Apparatus and method for treating a fibrous web |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI103421B1 (en) | 1997-10-30 | 1999-06-30 | Valmet Corp | Method and arrangement for changing a woven fabric in a paper machine |
FI117397B (en) | 2005-04-05 | 2006-09-29 | Metso Paper Inc | Method and apparatus for exchanging a tissue in a paper or cardboard machine |
FI119599B (en) * | 2007-04-20 | 2009-01-15 | Metso Paper Inc | A system for replacing a fabric / belt with a forming machine, a lift used for replacing a fabric / belt with a forming machine, and a method for replacing the fabric / belt in a forming machine |
-
2007
- 2007-11-26 DE DE102007047858A patent/DE102007047858A1/en not_active Withdrawn
-
2008
- 2008-11-14 EP EP20080169100 patent/EP2063022B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP2063022A1 (en) | 2009-05-27 |
DE102007047858A1 (en) | 2009-05-28 |
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