EP0732434B1 - Stuffer box crimping device for crimping synthetic yarn tows or such like - Google Patents
Stuffer box crimping device for crimping synthetic yarn tows or such like Download PDFInfo
- Publication number
- EP0732434B1 EP0732434B1 EP96103607A EP96103607A EP0732434B1 EP 0732434 B1 EP0732434 B1 EP 0732434B1 EP 96103607 A EP96103607 A EP 96103607A EP 96103607 A EP96103607 A EP 96103607A EP 0732434 B1 EP0732434 B1 EP 0732434B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- disc
- carrier disc
- abrasion member
- abrasion
- pressure
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
- D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
Definitions
- the invention relates to a device for crimping synthetic thread sheets, -bundles or belts with a pair of press rollers and a downstream Stuffer box consisting of two plates aligned parallel to the axes of the rollers where appropriate, one at least partially against the other to reduce the chamber space is pivotable, and two to the press nip delimiting the chamber space There are side walls, in each of which one of the edge areas at the level of the press roll nip assigned to the roll end faces, by an adjusting unit z. B. with a print acted against the roll end faces, generally cylindrical cut, with a thrust washer is provided.
- a device of this type is e.g. B. known from DE-A-2 117 393.
- the edge area between the press nip of the feed roller pair and those intended for wear Thrust washers are one of the most difficult to control of the entire stuffer box crimper.
- the construction must ensure that the feed roller pair fibers conveyed into the stuffer box with high pressure not from the side Device squeezed out.
- the wear which is necessary must occur between the rotating roller end faces and the stationary pressure disc, be reduced to a minimum, but especially evenly on the surface of the thrust washer his.
- it is known from the aforementioned publication which To store the thrust washer rotatably and to turn it gradually or continuously. To this In this way, the abrasion on the end face of the thrust washer takes place at least uniformly via the Contact surface.
- the disc is nevertheless replace frequently, e.g. after 4 - 6 hours of operation.
- the disk is then through one exchange new ones and the used ones in a z. B. Grinding from the company talk Free traces of grinding. This exchange and grinding process is possible several times, however, the wheel is used up after about 10 renewing grinding processes and must then overall with their rear drive bores and those necessary for replacement Tapped holes on the peripheral surface of the thrust washer. Except the fact that this is a high loss of material must also the investment of the grinding device and the work necessary for renewal and the like are observed.
- the invention has for its object to develop a thrust washer on the effort of regrinding and thus the acquisition of the grinding machine with the necessary Operation can be omitted.
- thrust washer is interchangeable from a carrier disc and one attached wear element is assembled.
- the carrier disc can made of any material and used over and over again.
- the precision work on the carrier disc with the individual holes and threads is only necessary once.
- the wear area of the thrust washer is separated by a separate one at any time
- Interchangeable wear element determines that solely from the softer and more expensive Nonferrous metal must be produced.
- the element can be used as a disc with a diameter the carrier disc from a corresponding sheet of z. B. punch and for easy non-rotatable connection with the carrier disc with a U-shaped diameter Provide collar, which then partially engages in the carrier disc.
- the carrier disc can now be made of a porous material such.
- B. be made of a sintered material which - as provided in DE-A-3 326 589 - Can be cooled with a fluid from the back.
- a porous material for the Up to now, thrust washer could not be used because the previously required grinding Pores of the wear surface were repeatedly closed with the grinding dust.
- the device for crimping synthetic thread sheets consists essentially of the as Feed and press roller pair serve rollers 1 and 2 and the downstream Stuffer box, which is formed by the two plates 4, 5 which are aligned axially to the rollers 1, 2. of which the plate 5 against the plate 4 to reduce the chamber space 3rd is pivotally mounted - and through the two to the press nip 8 down extending side windows 6, 7 is limited.
- the side windows 6, 7 are on the lower Plate 4 rigidly attached.
- pressure plates 9, 10 are free at the level of the press nip rotatably supported and pressurized in the direction of the arrow.
- the drive for rotation the pressure disks about their horizontal axis is not shown for simplicity. In general this is done via holes in the back of the pressure plates 9, 10 in the holes engaging thorns of the drive.
- the pressure disks 9, 10 do not consist of a single body, but instead from the carrier disk 11 and the wear element 12.
- the wear element 12 slips over itself in the form of a cover on the wear side of the carrier disc 12 is made solely from the non-ferrous metal used for wear. In a simple way it is punched from such a sheet and then with a collar 13 all around opened a lid. This lid fits positively on the corresponding one Groove 14 on the circumferential support plate 11 and should over this collar 13th be rotatably connected to the support plate 11. This could, for. B. fixed mandrels 15 in serve the support plate 11, the punched in gaps in the collar 13 of the wear cover click into place. Other mounting options are possible.
- the carrier disk material can be particularly cheap or also made of sintered material be made that is porous and therefore better for cooling the pressure plate with a liquid suitable is.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Paper (AREA)
Description
Die Erfindung bezieht sich auf eine Vorrichtung zum Kräuseln von synthetischen Fadenscharen, -bündeln oder -bändern mit einem Preßwalzenpaar und einer diesem nachgeschalteten Stauchkammer, die aus zwei parallel zu den Achsen der Walzen ausgerichteten Platten, von denen ggf. eine zumindest zum Teil gegen die andere zur Verkleinerung des Kammerraumes verschwenkbar ist, und zwei bis zum Preßwalzenspalt hin den Kammerraum begrenzenden Seitenwänden besteht, in denen in Höhe des Preßwalzenspaltes jeweils eine den Randbereichen der Walzenstirnflächen zugeordnete, von einer Verstelleinheit z. B. mit einem Druck gegen die Walzenstirnflächen beaufschlagte, im allgemeinen zylinderförmig geschnittene, mit einer Verschleißschicht versehene Druckscheibe vorgesehen ist.The invention relates to a device for crimping synthetic thread sheets, -bundles or belts with a pair of press rollers and a downstream Stuffer box consisting of two plates aligned parallel to the axes of the rollers where appropriate, one at least partially against the other to reduce the chamber space is pivotable, and two to the press nip delimiting the chamber space There are side walls, in each of which one of the edge areas at the level of the press roll nip assigned to the roll end faces, by an adjusting unit z. B. with a print acted against the roll end faces, generally cylindrical cut, with a thrust washer is provided.
Eine Vorrichtung dieser Art ist z. B. durch die DE-A-2 117 393 bekannt. Der Randbereich zwischen dem Preßwalzenspalt des Einzugswalzenpaares und den zum Verschleiß bestimmten Druckscheiben ist einer der am schwierigsten zu beherrschenden der ganzen Stauchkammerkräuselvorrichtung. Durch die Konstruktion ist dafür zu sorgen, daß die durch das Einzugswalzenpaar mit hohem Druck in die Stauchkammer geförderten Fasern nicht seitlich aus der Vorrichtung hinausgequetscht werden. Gleichzeitig soll der Verschleiß, der notwendigerweise zwischen den rotierenden Walzenstirnflächen und der ortsfesten Druckscheibe eintreten muß, auf ein Minimum reduziert werden, insbesondere aber an der Fläche der Druckscheibe gleichmäßig sein. Um dies zu erreichen, ist es aus der genannten Offenlegungsschrift bekannt, die Druckscheibe drehbar zu lagern und sie schrittweise oder kontinuierlich zu drehen. Auf diese Weise erfolgt der Abrieb an der Stirnseite der Druckscheibe zumindest gleichmäßig über die Anlagefläche.A device of this type is e.g. B. known from DE-A-2 117 393. The edge area between the press nip of the feed roller pair and those intended for wear Thrust washers are one of the most difficult to control of the entire stuffer box crimper. The construction must ensure that the feed roller pair fibers conveyed into the stuffer box with high pressure not from the side Device squeezed out. At the same time, the wear, which is necessary must occur between the rotating roller end faces and the stationary pressure disc, be reduced to a minimum, but especially evenly on the surface of the thrust washer his. In order to achieve this, it is known from the aforementioned publication, which To store the thrust washer rotatably and to turn it gradually or continuously. To this In this way, the abrasion on the end face of the thrust washer takes place at least uniformly via the Contact surface.
Je nach eingestelltem Druck gegen die Rückseite der Druckscheibe ist dennoch die Scheibe häufig auszuwechseln, etwa nach 4 - 6 Stunden Betriebszeit. Die Scheibe ist dann durch eine neue auszutauschen und die gebrauchte in einer z. B. Schleiferei von den Betriebs- sprich Schleifspuren zu befreien. Dieser Austausch- und Schleifvorgang ist zwar mehrfach möglich, jedoch ist die Scheibe etwa nach 10 erneuernden Schleifvorgängen verbraucht und muß dann insgesamt mit ihren rückwärtigen Antriebsbohrungen und den zum Auswechseln notwendigen Gewindebohrungen an der Umfangsfläche der Druckscheibe fortgeschmissen werden. Abgesehen davon, daß dies ein hoher Materialverlust ist, muß auch die Investition der Schleifeinrichtung und die zum Erneuern notwendige Arbeit und dgl. beachtet werden.Depending on the pressure set against the back of the pressure disc, the disc is nevertheless replace frequently, e.g. after 4 - 6 hours of operation. The disk is then through one exchange new ones and the used ones in a z. B. Grinding from the company talk Free traces of grinding. This exchange and grinding process is possible several times, however, the wheel is used up after about 10 renewing grinding processes and must then overall with their rear drive bores and those necessary for replacement Tapped holes on the peripheral surface of the thrust washer. Except the fact that this is a high loss of material must also the investment of the grinding device and the work necessary for renewal and the like are observed.
Dieser Nachteil existiert auch bei der Vorrichtung nach der DE-A-2 604 505. Zwar ist dort die Druckscheibe aus einer Trägerscheibe gebildet, die an ihrer Stirnseite eine gesonderte, zum Verschleiß bestimmte Beschichtung aufweist, doch wenn diese Beschichtung verschlissen ist, muß auch dort die ganze Druckscheibe ausgetauscht werden.This disadvantage also exists in the device according to DE-A-2 604 505. It is true that there Thrust washer formed from a carrier washer, which has a separate on its face to Has a certain coating, but if that coating is worn, the entire thrust washer must also be replaced there.
Der Erfindung liegt die Aufgabe zugrunde, eine Druckscheibe zu entwickeln, an der der Aufwand des Nachschleifens und damit die Anschaffung der Schleifmaschine mit der notwendigen Bedienung entfallen kann.The invention has for its object to develop a thrust washer on the effort of regrinding and thus the acquisition of the grinding machine with the necessary Operation can be omitted.
Ausgehend von einer Vorrichtung anfangs genannter Art ist zur Lösung der gestellten Aufgabe vorgesehen, daß die Druckscheibe aus einer Trägerscheibe und einem an dieser austauschbar befestigten Verschleißelement zusammengesetzt ist.Starting from a device of the type initially mentioned is to solve the task provided that the thrust washer is interchangeable from a carrier disc and one attached wear element is assembled.
Die Idee ist verblüffend einfach, sie hat aber weitreichende Folgen. Die Trägerscheibe kann aus jedem beliebigen Material hergestellt und immer wieder verwendet werden. Die Präzisionsarbeit an der Trägerscheibe mit den einzelnen Bohrungen und Gewinden ist nur einmal notwendig. Jetzt wird der Verschleißbereich der Druckscheibe durch ein gesondertes jederzeit austauschbares Verschleißelement bestimmt, das allein aus dem weicheren und kostspieligeren Buntmetall hergestellt werden muß. Man kann das Element als Scheibe mit dem Durchmesser der Trägerscheibe aus einem entsprechenden Blech z. B. stanzen und zur leichten drehfesten Verbindung mit der Trägerscheibe mit einem im Durchmesser U-förmig aufgebogenen Kragen versehen, der dann teilweise in die Trägerscheibe eingreift.The idea is amazingly simple, but it has far-reaching consequences. The carrier disc can made of any material and used over and over again. The precision work on the carrier disc with the individual holes and threads is only necessary once. Now the wear area of the thrust washer is separated by a separate one at any time Interchangeable wear element determines that solely from the softer and more expensive Nonferrous metal must be produced. The element can be used as a disc with a diameter the carrier disc from a corresponding sheet of z. B. punch and for easy non-rotatable connection with the carrier disc with a U-shaped diameter Provide collar, which then partially engages in the carrier disc.
In vorteilhafter Weise kann jetzt auch die Trägerscheibe aus einem porösen Material wie z. B. aus einem gesinterten Material hergestellt werden, das - wie in der DE-A-3 326 589 vorgesehen - von der Rückseite her mit einem Fluid gekühlt werden kann. Ein poröses Material für die Druckscheibe konnte bisher nicht verwendet werden, weil beim bisher notwendige Schleifen die Poren der Verschleißfläche mit dem Schleifstaub immer wieder verschlossen wurden.Advantageously, the carrier disc can now be made of a porous material such. B. be made of a sintered material which - as provided in DE-A-3 326 589 - Can be cooled with a fluid from the back. A porous material for the Up to now, thrust washer could not be used because the previously required grinding Pores of the wear surface were repeatedly closed with the grinding dust.
In der Zeichnung ist ein Ausführungsbeispiel nach der Erfindung dargestellt. Es zeigen:
- Fig. 1
- die Seitenansicht einer Stauchkammerkräuselvorrichtung im Bereich des Preßwalzenpaares,
- Fig. 2
- die Stauchkammerkräuselvorrichtung in der Stirnansicht in Richtung des einlaufenden Gutes gesehen und
- Fig. 3
- einen Schnitt durch das Preßwalzenpaar in Höhe des Preßwalzenspaltes gemäß der Einzelheit A mit der stirnseitig anliegenden Druckscheibe.
- Fig. 1
- the side view of a stuffer box crimping device in the area of the pair of press rolls,
- Fig. 2
- seen the stuffer box curling device in the front view in the direction of the incoming material and
- Fig. 3
- a section through the pair of press rolls at the level of the press roll nip according to detail A with the thrust washer abutting on the end face.
Die Vorrichtung zum Kräuseln synthetischer Fadenscharen besteht im wesentlichen aus den als
Einzugs- und Preßwalzenpaar dienen Walzen 1 und 2 und der nachgeschalteten
Stauchkammer, die durch die zwei achsrecht zu den Walzen 1, 2 ausgerichteten Platten 4, 5 -
von denen die Platte 5 gegen die Platte 4 zur Verkleinerung des Kammerraumes 3
verschwenkbar gelagert ist - und durch die zwei bis zum Preßwalzenspalt 8 hin sich
erstreckenden Seitenscheiben 6, 7 begrenzt ist. Die Seitenscheiben 6, 7 sind an der unteren
Platte 4 starr befestigt.The device for crimping synthetic thread sheets consists essentially of the as
Feed and press roller pair serve
In den Seitenscheiben 6, 7 sind in Höhe des Preßwalzenspaltes 8 Druckscheiben 9, 10 frei
drehbar gelagert und mit Druck in Richtung des Pfeiles beaufschlagt. Der Antrieb zur Drehung
der Druckscheiben um ihre horizontale Achse ist der Einfachheit nicht dargestellt. Im allgemeinen
erfolgt dies über Bohrungen in der Rückseite der Druckscheiben 9, 10 mit in die Bohrungen
eingreifenden Dornen des Antriebes.In the
Die Druckscheiben 9, 10 bestehen gemäß der Fig. 3 nicht aus einem einzigen Körper, sondern
aus der Trägerscheibe 11 und dem Verschleißelement 12. Das Verschleißelement 12 stülpt
sich in Form eines Deckels auf die Verschleißseite der Trägerscheibe Das Verschleißelement
12 ist allein aus dem zum Verschleiß verwendeten Buntmetall hergestellt. In einfacher Weise
ist es aus einem solchen Blech gestanzt und anschließend mit einem Kragen 13 rundum zu
einem Deckel aufgebogen. Dieser Deckel stülpt sich formschlüssig auf die mit einer entsprechenden
Nut 14 am Umfang versehene Trägerscheibe 11 und sollte über diesen Kragen 13
mit der Trägerscheibe 11 drehfest verbunden sein. Dazu könnten z. B. ortsfeste Dorne 15 in
der Trägerscheibe 11 dienen, die in ausgestanzte Lücken im Kragen 13 des Verschleißdeckels
einrasten. Andere Befestigungsmöglichkeiten sind möglich.According to FIG. 3, the
Aufgrund dieser Konstruktion der Druckscheibe liegt nur das Material des Verschleißelementes 12 fest. Das Trägerscheibenmaterial kann besonders billig oder aber auch aus Sintermaterial hergestellt sein, das porös und damit besser zum Kühlen der Druckscheibe mit einer Flüssigkeit geeignet ist.Due to this design of the thrust washer, only the material of the wear element lies 12 firm. The carrier disk material can be particularly cheap or also made of sintered material be made that is porous and therefore better for cooling the pressure plate with a liquid suitable is.
Claims (15)
- Apparatus for crimping synthetic filament assemblies, bundles or bands, having a pair of pressure rollers (1, 2) and a compression chamber, which is connected downstream thereof and comprises two plates (4, 5), which are orientated parallel to the axes of the rollers, of which plates possibly one (5) is at least partially pivotable relative to the other to reduce the chamber volume (3), and two lateral walls (6, 7), which define the chamber volume as far as the pressure roller nip (8), and in each of which walls a pressure disc (9, 10) is provided on a level with the pressure roller nip (8), said pressure disc being associated with the edge regions of the roller end faces and being acted upon by an adjustment unit, e.g. with a pressure against the roller end faces, and said pressure disc having a generally cylindrical cross-section and being provided with an abrasive layer, characterised in that the pressure disc (9, 10) comprises a carrier disc (11) and an abrasion member (12), which is interchangeably mounted thereon.
- Apparatus according to claim 1, characterised in that the abrasion member (12) is also configured as a disc.
- Apparatus according to claim 1 or 2, characterised in that the abrasion member (12) is formed as a cover covering the carrier disc.
- Apparatus according to claim 2 or 3, characterised in that the abrasion member (12) has at least the same diameter as the carrier disc (11).
- Apparatus according to claim 2, 3 or 4, characterised in that the abrasion member (12) has a flat abrasion wall and, at least partially therearound, an upwardly extending flange edge (13).
- Apparatus according to claim 5, characterised in that the abrasion member (12) is non-rotatably connected to the carrier disc (11) in the region of the flange edge (13).
- Apparatus according to one of claims 1 - 6, characterised in that the abrasion member (12) is only detachably mounted on the carrier disc (11) and is non-rotatably retained on the carrier disc (11) by coupling means (15).
- Apparatus according to claim 6 or 7, characterised in that the flange edge (13) is used for the non-rotatable connection.
- Apparatus according to claim 8, characterised in that the carrier disc (11) has fixed coupling means (15) on the radial circumference to provide the non-rotatable connection, said coupling means engaging in recesses in the flange edge (13) of the abrasion member (12) or vice versa.
- Apparatus according to claims 7 - 9, characterised in that the carrier disc (11) has therearound a groove (14) in the region of the flange edge (13) of the mounted abrasion member (12).
- Apparatus according to one of claims 1 - 10, characterised in that the abrasion member (11) is stamped from a sheet of an abrasion material.
- Apparatus according to claim 11, characterised in that the cylindrical edge region of the abrasion cover is bent upwardly after the stamping process.
- Apparatus according to one of claims 1 - 12, characterised in that the carrier disc (11) is produced from a hard but porous material.
- Apparatus according to claim 13, characterised in that the carrier disc (11) is produced from a sintered material.
- Apparatus according to claim 13 or 14, characterised in that the carrier disc (11), which is porous over the surface of the abrasion member (12), is cooled by a fluid.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19509095 | 1995-03-16 | ||
| DE19509095A DE19509095A1 (en) | 1995-03-16 | 1995-03-16 | Stuffer box crimping device for crimping synthetic thread sheets or the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0732434A1 EP0732434A1 (en) | 1996-09-18 |
| EP0732434B1 true EP0732434B1 (en) | 1999-04-07 |
Family
ID=7756585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96103607A Expired - Lifetime EP0732434B1 (en) | 1995-03-16 | 1996-03-08 | Stuffer box crimping device for crimping synthetic yarn tows or such like |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5673466A (en) |
| EP (1) | EP0732434B1 (en) |
| JP (1) | JPH08260272A (en) |
| DE (2) | DE19509095A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3891324A1 (en) * | 2018-12-04 | 2021-10-13 | Oerlikon Textile GmbH & Co. KG | Method for operating a crimping apparatus, and crimping apparatus |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3237270A (en) * | 1963-12-11 | 1966-03-01 | Du Pont | Stuffer box crimper with composite crimper discs |
| US3305897A (en) * | 1964-10-28 | 1967-02-28 | Du Pont | Crimping process |
| US3600776A (en) * | 1968-11-29 | 1971-08-24 | Teijin Ltd | Stuffer crimper |
| US3618183A (en) * | 1970-02-11 | 1971-11-09 | Monsanto Co | Insert pressure controller |
| DE2117393C3 (en) * | 1971-04-08 | 1980-07-31 | Vepa Ag, Riehen B. Basel (Schweiz) | Device for crimping synthetic thread sheets |
| CH529856A (en) * | 1970-08-10 | 1972-10-31 | Vepa Ag | Device for crimping synthetic thread sheets |
| JPS5192340A (en) * | 1975-02-10 | 1976-08-13 | ||
| DE3326589C2 (en) * | 1983-07-23 | 1994-02-24 | Fleissner Maschf Ag | Device for crimping synthetic thread sheets |
| US4662042A (en) * | 1986-04-07 | 1987-05-05 | Celanese Corporation | Methods and apparatus for lubricating a cheek plate of a textile crimping mechanism |
| US4730371A (en) * | 1987-02-17 | 1988-03-15 | E. I. Du Pont De Nemours And Company | Coated crimper rolls |
| DE3921708A1 (en) * | 1989-07-01 | 1991-01-10 | Spinnstoffabrik Zehlendorf Ag | WEARING DISCS FOR CIRCULAR MACHINES |
-
1995
- 1995-03-16 DE DE19509095A patent/DE19509095A1/en not_active Withdrawn
-
1996
- 1996-03-08 DE DE59601579T patent/DE59601579D1/en not_active Expired - Fee Related
- 1996-03-08 EP EP96103607A patent/EP0732434B1/en not_active Expired - Lifetime
- 1996-03-15 JP JP8059264A patent/JPH08260272A/en active Pending
- 1996-03-18 US US08/617,109 patent/US5673466A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE19509095A1 (en) | 1996-09-19 |
| JPH08260272A (en) | 1996-10-08 |
| EP0732434A1 (en) | 1996-09-18 |
| US5673466A (en) | 1997-10-07 |
| DE59601579D1 (en) | 1999-05-12 |
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