EP1360360A1 - Closing unit for the nozzle strip on a nozzle beam for hydrodynamically needling fibres of a web of fabric - Google Patents
Closing unit for the nozzle strip on a nozzle beam for hydrodynamically needling fibres of a web of fabricInfo
- Publication number
- EP1360360A1 EP1360360A1 EP02719780A EP02719780A EP1360360A1 EP 1360360 A1 EP1360360 A1 EP 1360360A1 EP 02719780 A EP02719780 A EP 02719780A EP 02719780 A EP02719780 A EP 02719780A EP 1360360 A1 EP1360360 A1 EP 1360360A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- nozzle bar
- strip
- bar according
- closing unit
- 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.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H18/00—Needling machines
- D04H18/04—Needling machines with water jets
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C29/00—Finishing or dressing, of textile fabrics, not provided for in the preceding groups
Definitions
- the invention relates to a nozzle bar on a device for generating the finest liquid jets for hydrodynamic jet exposure of the fibers of a web guided along the bar, such as fiber web, tissue ect.
- Woven or knitted fabric consisting of an upper part and a lower part extending over the working width of the web, wherein a.
- a round pressure chamber is arranged in cross section, which the pressurized liquid z. B. is supplied at the front, b. parallel to this, a pressure distribution chamber is provided in the lower part, c. the pressure distribution chamber runs out into a liquid outlet slot which is narrow compared to the cross section of the pressure distribution chamber, d.
- a nozzle strip is mounted liquid-tight in the nozzle bar above the liquid outlet slot and e. this nozzle strip is interchangeable via a closable opening on the end face of the nozzle bar.
- a device of this type is disclosed in DE-A-195 01 738, the content of which is incorporated here with the prior art.
- Water pressures of up to 1000 bar are generated in the pressure chamber, which of course also affect the end walls of the nozzle bar.
- one end face must first be open, but then closed with a cover.
- Separate covers are provided for the pressure chamber and also for the pressure distribution chamber, which are fastened to the nozzle bar wall with screws.
- a separate cover is also provided for closing the nozzle strip exchange opening, which is also held on the nozzle bar wall with screws. Round cord rings embedded in the walls to be sealed are used for liquid-tight sealing.
- the invention has for its object to find a solution for a nozzle bar initially mentioned, with which a quick change of the nozzle strip is made possible without mechanical disassembly, without a wrench.
- a closure unit is provided on the closable opening, g) is provided at the level of the nozzle strip bearing point with an insertion slot for the nozzle strip, which h) can be closed by an insertion mandrel.
- the insertion dome can be held by a bolt which is fixed in the closing unit and which, after the water supply and thus the water pressure have been switched off, can easily be pulled out of a bore which fixes the insertion mandrel on the nozzle bar.
- the loss of the bolt can be avoided by securing it to the nozzle bar via a z.
- the insertion mandrel can be pulled out of the closing unit by hand, preferably together with the nozzle strip, and then inserted again after replacement with a new strip with the insertion mandrel.
- a nozzle bar of the type supplemented according to the invention is shown by way of example in the drawing. Show it:
- FIG. 1 shows a section along a conventional nozzle bar
- FIG. 2 shows the end face of the nozzle bar according to FIG. 1
- FIG. 3 shows a section along the line C - C according to FIG. 1 with the view of the lower part of the nozzle bar
- 4 shows a section along the line IV-IV in FIG. 5, namely the one of the two end faces of the nozzle bar according to FIG. 1, now supplemented by a new quick-change device for the nozzle strip
- FIG. 6 shows a section through the closing unit similar to that of FIG. 4 with a different holder of the nozzle strip
- FIG. 7 shows a section similar to that of FIG. 6 with the insertion mandrel pulled out here
- Fig. 8 is a top view of the device of Fig. 6 and
- FIG. 9 shows a schematic representation of the manner in which the nozzle strip is fastened in the quick-change device according to FIG. 6.
- the nozzle bar shown in FIGS. 1-3 is known from DE-A 195 01 738, it can be replaced here by another one which is similar in principle.
- the housing of the nozzle bar consists of an upper part 1, which is screwed to the lower part 2 many times over the length by screws, not shown, from below.
- the upper part 1 has two bores 4 and 5, the upper of which is the pressure chamber 4 and the lower one the pressure distribution chamber 5. Both chambers are open on one end and screwed liquid-tight again through the covers 6 and 7.
- the pressure chamber 4 On the other end face, the pressure chamber 4 has an opening 4 'through which the pressurized liquid is introduced.
- the two chambers 4 and 5 are separated from one another by an intermediate wall 8.
- a large number of flow bores 9 in the intermediate wall 8 connect the two chambers over the length of the nozzle bar, so that the liquid flowing into the pressure chamber 4 flows out evenly distributed over the length into the pressure distribution chamber 5.
- the pressure distribution chamber is open at the bottom, namely through the slot 10 which is narrow in relation to the diameter of the bore of the pressure distribution chamber 5 and which also extends over the length of the beam.
- the upper part 1 is screwed to the lower part 2 firmly and in a liquid-tight manner.
- the tightness is brought about by the O-ring 11, which lies in an annular groove 11 'of the upper part 1.
- the slot 10 encloses a spring projection 23 which is fitted in a corresponding groove 25 in the lower part 2.
- an annular groove 12 ′ is again introduced, in which the O-ring 12 lies to seal the nozzle strip 14.
- a slot 13 is also introduced in the lower part 2, which is only very narrow in its upper region and leaves only a little more than the width of the effective nozzle openings of the nozzle strip 14 open.
- the lower part 2 is screwed together in a liquid-tight manner by a further cover 16 and 17.
- a groove 18, 19 is made at the level of the nozzle strip 14 held in the lower part, into which the nozzle strip 14 extends and can thus easily be gripped for replacement after removal of the cover 16 or 17.
- the screws of which have to be unscrewed when replacing the nozzle strip 14 and laterally stored together with the cover 16, 17, according to FIGS of the nozzle bar projecting closing unit 26 is provided, which enables a quick change of the nozzle strip 14. It consists of a block corresponding to the width of the nozzle bar, which is firmly screwed on one side to the lower part 2 of the nozzle bar via the screws 27, 28 and there has a continuous slot 29 in the middle on this side for pushing through the nozzle strip 14. On the other side, at the same height, there is an insertion slot which is open to the outside and is intended for pushing through the nozzle strip 14 and can be closed again by an insertion mandrel 31.
- the closing unit 26 has a bore 32 which runs from top to bottom and which corresponds to a bore 33 in the insertion mandrel 31 in the inserted state in the insertion opening 30 in alignment.
- the insertion mandrel 31 is fixed to the closing unit 26 and thus to the nozzle bar with the bolt 34 pushed through there.
- the bolt 34 in its bores 32, 33 is easy to handle due to the closing unit 26 protruding from the end face of the nozzle bar.
- the insertion mandrel 31 is through a round cord ring 35 in the insertion opening 30 and the block 26 with its end 26 'extending in the nozzle bars 1, 2 through an annular seal 36 on the end face of the end 26' within the upper part 1 and the lower part 2 of the nozzle bar sealed.
- the quick-change device for the nozzle strip 14 is changed.
- It consists of two spring plates 40, 41 pressed against one another, which are located one above the other and fastened parallel to the nozzle strip 14 on the end face of the insertion mandrel 31.
- the spring plates 40, 41 At the free ends of the spring plates 40, 41, these are bent up according to FIG. 9a.
- a short pin or a hemisphere 42 is fastened to the spring plate 40 lying below and penetrates through a corresponding hole 43 in the upper spring plate 41 when spring plates 40, 41 lie one on top of the other.
- the nozzle strip 14 has at its end a corresponding bore 44 through which the ball 42 of the spring plate 40 penetrates to hold the strip 14 on the insertion mandrel 31.
- the nozzle stiffener 14 is quickly replaced in this way.
- the two spring plates 40, 41 are only to be bent open with the end of the nozzle strip 14 and the changeover process to the arrangement according to FIGS. 9g and h be carried out.
- the bolt 34 ' discontinues to extend not horizontally but horizontally.
- the bolt 34 * thus covers the insertion bores for the screws 27, 28, but these are recessed deeply and hardly need to be replaced.
- the ring 45 which is laterally attached to the closing unit 26, is electrically connected via the wires 46 to the control unit of the nozzle bar, the water pressure of which can only be increased if the closing unit 26 is properly blocked by the bolt 34 '.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
Description
Verschließeinheit für den Düsenstreifen an einem Düsenbalken zur hydrodynamischen Vernadelung von Fasern einer WarenbahnClosing unit for the nozzle strip on a nozzle bar for the hydrodynamic needling of fibers of a material web
Die Erfindung bezieht sich auf einen Düsenbalken an einer Vorrichtung zur Erzeugung von feinsten Flüssigkeitsstrahlen zur hydrodynamischen Strahlbeaufschlagung der Fasern einer entlang des Balkens geführten Bahn, wie Faserbahn, Tissue ect. Gewebe oder Gewirke, der aus einem sich über die Arbeitsbreite der Bahn erstreckenden oberen Teil und einem unteren Teil besteht, wobei a. in dem oberen Teil über seine Länge eine im Querschnitt runde Druckkammer angeordnet ist, der die unter Druck stehende Flüssigkeit z. B. stirnseitig zugeführt ist, b. parallel dazu in dem unteren Teil eine Druckverteilkammer vorgesehen ist, c. die Druckverteilkammer in einen gegenüber dem Querschnitt der Druckverteilkammer schmalen Flüssigkeitsaustrittsschlitz ausläuft, d. oberhalb des Flüssigkeitsaustrittsschlitzes ein Düsenstreifen flüssigkeitsdicht im Düsenbalken gelagert ist und e. dieser Düsenstreifen über eine verschließbare Öffnung an der Stirnseite des Dusenbalkens austauschbar ist.The invention relates to a nozzle bar on a device for generating the finest liquid jets for hydrodynamic jet exposure of the fibers of a web guided along the bar, such as fiber web, tissue ect. Woven or knitted fabric consisting of an upper part and a lower part extending over the working width of the web, wherein a. In the upper part over its length a round pressure chamber is arranged in cross section, which the pressurized liquid z. B. is supplied at the front, b. parallel to this, a pressure distribution chamber is provided in the lower part, c. the pressure distribution chamber runs out into a liquid outlet slot which is narrow compared to the cross section of the pressure distribution chamber, d. a nozzle strip is mounted liquid-tight in the nozzle bar above the liquid outlet slot and e. this nozzle strip is interchangeable via a closable opening on the end face of the nozzle bar.
Eine Vorrichtung dieser Art ist in der DE-A-195 01 738 offenbart, deren Inhalt mit Zeichnung als Stand der Technik hier einbezogen wird. In der Druckkammer werden Wasserdrücke bis zu 1000 bar erzeugt, die sich natürlich auch auf die stirnseitigen Wandungen des Düsenbalkens auswirken. Zur Herstellung der Bohrungen in dem Balken, muss die eine Stirnseite zunächst offen sein, dann aber mit Deckein verschlossen werden. Für die Druckkammer und auch für die Druckverteilkammer sind eigene Deckel vorgesehen, die mit Schrauben an der Düsenbalkenwandung befestigt sind. Zum Verschluss der Düsenstreifenaustauschöffnung ist ebenfalls ein eigener Deckel vorgesehen, der auch mit Schrauben an der Düsenbalkenwandung gehalten ist. Zur flüssigkeitsdichten Abdichtung dienen jeweils in die abzudichtenden Wandungen eingelassene Rundschnurringe. Zum ggf. notwendigen Wechsel des Düsenstreifens müssen - nach Abstellung der Wasserzufuhr - die beiden dort vorgesehenen Schrauben, mit denen der Deckel an dem Balken befestigt ist, mittels eines Schraubenschlüssels gelöst und Deckel mit Schrauben zur Wiederverwendung beiseite gelegt werden. Es sind zwar nur zwei Schrauben zu lösen, doch ist dazu ein Schlüssel notwendig, was als nachteilig angesehen werden kann.A device of this type is disclosed in DE-A-195 01 738, the content of which is incorporated here with the prior art. Water pressures of up to 1000 bar are generated in the pressure chamber, which of course also affect the end walls of the nozzle bar. To make the holes in the beam, one end face must first be open, but then closed with a cover. Separate covers are provided for the pressure chamber and also for the pressure distribution chamber, which are fastened to the nozzle bar wall with screws. A separate cover is also provided for closing the nozzle strip exchange opening, which is also held on the nozzle bar wall with screws. Round cord rings embedded in the walls to be sealed are used for liquid-tight sealing. To change the nozzle strip, if necessary, after switching off the water supply, the two screws provided there, with which the cover is attached to the beam, must be loosened with a wrench and the cover with screws set aside for reuse. There are only two screws to be loosened, but this requires a key, which can be considered a disadvantage.
Der Erfindung liegt die Aufgabe zugrunde, eine Lösung für einen Düsenbalken anfangs genannter Art zu finden, mit der ohne maschinelle Demontage, mit der ohne Schraubenschlüssel ein Schnellwechsel des Düsenstreifens möglich gemacht ist.The invention has for its object to find a solution for a nozzle bar initially mentioned, with which a quick change of the nozzle strip is made possible without mechanical disassembly, without a wrench.
Die Lösung der gestellten Aufgabe wird darin gesehen, dass f) an der verschließbaren Öffnung eine Verschließeinheit vorgesehen ist, die g) in Höhe der Düsenstreifenlagerstelle mit einem Einschubschlitz für den Düsenstreifen versehen ist, der h) durch einen Einschubdorn verschließbar ist.The solution to the problem is seen in that f) a closure unit is provided on the closable opening, g) is provided at the level of the nozzle strip bearing point with an insertion slot for the nozzle strip, which h) can be closed by an insertion mandrel.
Der Einschubdom kann durch einen in der Verschließeinheit fixierten Bolzen gehalten sein, der nach Abstellen der Wasserzufuhr und damit des Wasserdrucks leicht aus einer den Einschubdorn an dem Düsenbalken fixierenden Bohrung herausgezogen werden kann. Der Verlust des Bolzens kann vermieden werden durch seine Sicherung an dem Düsenbalken über eine z. B. fadenförmige Verbindung, der Einschubdorn kann mit der Hand aus der Verschließeinheit vorzugsweise zusammen mit dem Düsenstreifen herausgezogen und ein solches dann wieder nach Austausch gegen einen neuen Streifen mit dem Einschubdorn eingeschoben werden.The insertion dome can be held by a bolt which is fixed in the closing unit and which, after the water supply and thus the water pressure have been switched off, can easily be pulled out of a bore which fixes the insertion mandrel on the nozzle bar. The loss of the bolt can be avoided by securing it to the nozzle bar via a z. B. thread-like connection, the insertion mandrel can be pulled out of the closing unit by hand, preferably together with the nozzle strip, and then inserted again after replacement with a new strip with the insertion mandrel.
Ein Düsenbalken der erfindungsgemäß ergänzten Art ist in der Zeichnung beispielhaft dargestellt. Es zeigen:A nozzle bar of the type supplemented according to the invention is shown by way of example in the drawing. Show it:
Fig. 1 einen Schnitt längs durch einen üblichen Düsenbalken, Fig. 2 die Ansicht der Stirnseite des Düsenbalkens nach Fig. 1 , Fig. 3 einen Schnitt entlang der Linie C - C nach Fig. 1 mit der Ansicht des Unterteils des Düsenbalkens, Fig. 4 einen Schnitt entlang der Linie IV - IV in Fig. 5, nämlich die eine der beiden Stirnseiten des Düsenbalkens nach Fig. 1 jetzt ergänzt durch eine neue Schnellwechseleinrichtung für den Düsenstreifen,1 shows a section along a conventional nozzle bar, FIG. 2 shows the end face of the nozzle bar according to FIG. 1, FIG. 3 shows a section along the line C - C according to FIG. 1 with the view of the lower part of the nozzle bar, 4 shows a section along the line IV-IV in FIG. 5, namely the one of the two end faces of the nozzle bar according to FIG. 1, now supplemented by a new quick-change device for the nozzle strip,
Fig. 5 die Draufsicht der Einrichtung im Bereich der Stirnseite des Düsenbalkens,5 shows the top view of the device in the region of the end face of the nozzle bar,
Fig. 6 einen Schnitt durch die Verschließeinheit ähnlich dem nach Fig. 4 mit einer andern Halterung des Düsenstreifens,6 shows a section through the closing unit similar to that of FIG. 4 with a different holder of the nozzle strip,
Fig. 7 einen Schnitt gleich dem nach Fig. 6 mit hier herausgezogenem Einschubdorn,7 shows a section similar to that of FIG. 6 with the insertion mandrel pulled out here,
Fig. 8 die Draufsicht der Einrichtung nach Fig. 6 undFig. 8 is a top view of the device of Fig. 6 and
Fig. 9 in schematischer Darstellung die Weise der Schnellbefestigung des Düsenstreifens in der Schnellwechseleinrichtung nach Fig. 6.9 shows a schematic representation of the manner in which the nozzle strip is fastened in the quick-change device according to FIG. 6.
Der aus den Fig. 1 - 3 ersichtliche Düsenbalken ist durch die DE-A 195 01 738 bekannt, er kann durch einen anderen im Prinzip aber ähnlichen hier ersetzt sein. Das Gehäuse des Düsenbalkens besteht aus einem Oberteil 1 , das mit dem Unterteil 2 vielfach über die Länge durch nicht dargestellte Schrauben von unten verschraubt ist. Das Oberteil 1 weist längs zwei Bohrungen 4 und 5 auf, von denen die obere die Druckkammer 4 und die untere die Druckverteilkammer 5 ist. Beide Kammern sind an der einen Stirnseite offen und wieder durch die Deckel 6 und 7 flüssigkeitsdicht verschraubt. An der anderen Stirnseite weist die Druckkammer 4 eine Öffnung 4' auf, durch die die unter Druck gesetzte Flüssigkeit eingeführt wird. Die beiden Kammern 4 und 5 sind durch eine Zwischenwandung 8 voneinander getrennt. Über die Länge des Dusenbalkens verbinden eine große Anzahl von Durchflussbohrungen 9 in der Zwischenwandung 8 die beiden Kammern, so dass die in die Druckkammer 4 einströmende Flüssigkeit gleichmäßig verteilt über die Länge in die Druckverteilkammer 5 ausströmt. Die Druckverteilkammer ist nach unten offen, und zwar durch den gegenüber dem Durchmesser der Bohrung der Druckverteilkammer 5 schmalen Schlitz 10, der sich ebenfalls über die Länge des Balkens erstreckt.The nozzle bar shown in FIGS. 1-3 is known from DE-A 195 01 738, it can be replaced here by another one which is similar in principle. The housing of the nozzle bar consists of an upper part 1, which is screwed to the lower part 2 many times over the length by screws, not shown, from below. The upper part 1 has two bores 4 and 5, the upper of which is the pressure chamber 4 and the lower one the pressure distribution chamber 5. Both chambers are open on one end and screwed liquid-tight again through the covers 6 and 7. On the other end face, the pressure chamber 4 has an opening 4 'through which the pressurized liquid is introduced. The two chambers 4 and 5 are separated from one another by an intermediate wall 8. A large number of flow bores 9 in the intermediate wall 8 connect the two chambers over the length of the nozzle bar, so that the liquid flowing into the pressure chamber 4 flows out evenly distributed over the length into the pressure distribution chamber 5. The pressure distribution chamber is open at the bottom, namely through the slot 10 which is narrow in relation to the diameter of the bore of the pressure distribution chamber 5 and which also extends over the length of the beam.
Das Oberteil 1 ist mit dem Unterteil 2 fest und flüssigkeitsdicht verschraubt. Die Dichtigkeit wird durch den O-Ring 11 bewirkt, der in einer Ringnut 11' des Oberteils 1 einliegt. In der Mitte zwischen dem O-Ring 11 umschließt den Schlitz 10 einen Federvorsprung 23, der in einer entsprechenden Nut 25 des Unterteils 2 eingepasst ist. In dem Boden der Nut 25 des Unterteils 2 ist wiederum eine Ringnut 12' eingebracht, in der der O-Ring 12 zur Abdichtung des Düsenstreifens 14 einliegt. In einer Linie unterhalb der Flüssigkeitsdurchflussbohrungen 9 und des Schlitzes 10 ist im Unterteil 2 ebenfalls ein Schlitz 13 eingebracht, der in seinem oberen Bereich nur sehr schmal ist und nur wenig mehr als die Breite der wirksamen Düsenöffnungen des Düsenstreifens 14 offen lässt.The upper part 1 is screwed to the lower part 2 firmly and in a liquid-tight manner. The tightness is brought about by the O-ring 11, which lies in an annular groove 11 'of the upper part 1. In the middle between the O-ring 11, the slot 10 encloses a spring projection 23 which is fitted in a corresponding groove 25 in the lower part 2. By doing At the bottom of the groove 25 of the lower part 2, an annular groove 12 ′ is again introduced, in which the O-ring 12 lies to seal the nozzle strip 14. In a line below the liquid flow bores 9 and the slot 10, a slot 13 is also introduced in the lower part 2, which is only very narrow in its upper region and leaves only a little more than the width of the effective nozzle openings of the nozzle strip 14 open.
Fluchtend mit den Deckeln 6, 7 bzw. der rückwärtigen Gehäusestirnwand 15 ist das Unterteil 2 je durch einen weiteren Deckel 16 und 17 flüssigkeitsdicht verschraubt. In den Deckeln 16, 17 ist in Höhe des im Unterteil gehaltenen Düsenstreifens 14 eine Nut 18, 19 eingebracht, in die sich der Düsenstreifen 14 hinein erstreckt und damit leicht nach Demontage des Deckels 16 oder 17 zum Austausch gefasst werden kann.Aligned with the covers 6, 7 and the rear housing end wall 15, the lower part 2 is screwed together in a liquid-tight manner by a further cover 16 and 17. In the covers 16, 17, a groove 18, 19 is made at the level of the nozzle strip 14 held in the lower part, into which the nozzle strip 14 extends and can thus easily be gripped for replacement after removal of the cover 16 or 17.
Statt des zu verschraubenden Deckels 16, 17 nach Fig. 1, 2, dessen Schrauben beim Austausch des Düsenstreifens 14 aufgeschraubt und zusammen mit dem Deckel 16, 17 seitlich gelagert werden müssen, ist gemäß Fig. 4, 5 eine gegenüber der Stirnseite des Oberteils 1 des Düsenbalkens vorstehende Verschließeinheit 26 vorgesehen, die einen Schnellwechsel des Düsenstreifens 14 ermöglicht. Sie besteht aus einem der Breite des Düsenbalkens entsprechenden Block, der auf der einen Seite mit dem Unterteil 2 des Düsenbalkens über die Schrauben 27, 28 fest verschraubt ist und dort auf dieser Seite in seiner Mitte einen durchgehenden Schlitz 29 zum Durchschieben des Düsenstreifens 14 aufweist. Auf der andern Seite in gleicher Höhe ist ein nach außen offener, für den Durchschub des Düsenstreifens 14 vorgesehener Einschubschlitz vorgesehen, der durch einen Einschubdorn 31 wieder verschließbar ist. Zur Fixierung des Einschubdorns 31 im Einschubschlitz, der erweitert ist zur Einschuböffnung 30, weist die Verschließeinheit 26 gemäß Fig. 4 eine von oben nach unten durchgehenden Bohrungen 32 auf, der eine Bohrung 33 im Einschubdorn 31 im in der Einschuböffnung 30 eingeschobenen Zustand fluchtend entspricht. Durch diese durch Teil 26 und 31 gehende Bohrung 32, 33 ist mit dem dort durchgeschobenen Bolzen 34 der Einschubdorn 31 an der Verschließeinheit 26 und damit an dem Düsenbalken fixiert. Durch die gegenüber der Stirnseite des Düsenbalkens vorstehende Verschließeinheit 26 ist der Bolzen 34 in seinen Bohrungen 32, 33 leicht handhabbar. Der Einschubdorn 31 ist durch einen Rundschnurring 35 in der Einschuböffnung 30 und der Block 26 mit seinem in den Düsenbalken 1, 2 sich erstreckenden Ende 26' durch eine Ringdichtung 36 an der Stirnseite des Endes 26' innerhalb des Oberteils 1 und des Unterteils 2 des Düsenbalkens abgedichtet.Instead of the cover 16, 17 to be screwed according to FIGS. 1, 2, the screws of which have to be unscrewed when replacing the nozzle strip 14 and laterally stored together with the cover 16, 17, according to FIGS of the nozzle bar projecting closing unit 26 is provided, which enables a quick change of the nozzle strip 14. It consists of a block corresponding to the width of the nozzle bar, which is firmly screwed on one side to the lower part 2 of the nozzle bar via the screws 27, 28 and there has a continuous slot 29 in the middle on this side for pushing through the nozzle strip 14. On the other side, at the same height, there is an insertion slot which is open to the outside and is intended for pushing through the nozzle strip 14 and can be closed again by an insertion mandrel 31. To fix the insertion mandrel 31 in the insertion slot, which is expanded to the insertion opening 30, the closing unit 26 according to FIG. 4 has a bore 32 which runs from top to bottom and which corresponds to a bore 33 in the insertion mandrel 31 in the inserted state in the insertion opening 30 in alignment. Through this bore 32, 33 passing through part 26 and 31, the insertion mandrel 31 is fixed to the closing unit 26 and thus to the nozzle bar with the bolt 34 pushed through there. The bolt 34 in its bores 32, 33 is easy to handle due to the closing unit 26 protruding from the end face of the nozzle bar. The insertion mandrel 31 is through a round cord ring 35 in the insertion opening 30 and the block 26 with its end 26 'extending in the nozzle bars 1, 2 through an annular seal 36 on the end face of the end 26' within the upper part 1 and the lower part 2 of the nozzle bar sealed.
Der Düsenstreifen 14 ist gemäß Fig. 4 in einem Schlitz 37 am Ende des Einschubdorns 31 fixiert, z. B. durch einen Stift 38 oder eine Reibfeder, und kann über einen Griff 39 am anderen Ende des Einschubdorns 31 leicht hin und her bewegt werden. Zum Austausch des Düsenstreifens ist lediglich der Wasserdruck im Düsenbalken aufzuheben und dann der Bolzen 34 herauszuziehen. Damit ist am Griff 39 leicht der Düsensteifen 14 herauszuziehen und wieder nach durchgeführtem Wechsel des Düsenstreifens 14 der neue Streifen hineinzuschieben. Zur Fixierung des Einschubdorns 31 ist dann lediglich der Bolzen 34 erneut durch die Bohrungen 32, 33 zu schieben. Der Wasserdruck kann wieder erhöht werden.4 is fixed in a slot 37 at the end of the insertion mandrel 31, for. B. by a pin 38 or a friction spring, and can be easily moved back and forth via a handle 39 at the other end of the insertion mandrel 31. To replace the nozzle strip, simply remove the water pressure in the nozzle bar and then pull out the bolt 34. This makes it easy to pull out the nozzle strip 14 on the handle 39 and push the new strip back in again after the nozzle strip 14 has been replaced. To fix the insertion mandrel 31, only the bolt 34 then has to be pushed again through the bores 32, 33. The water pressure can be increased again.
In der im Prinzip gleichen Einrichtung nach den Fig. 6 - 9 ist die Schnellwechseleinrichtung für den Düsenstreifen 14 geändert. Sie besteht dort aus zwei gegeneinander gepressten Federblechen 40, 41, die an der Stirnseite des Einschubdorns 31 überein- anderliegend und parallel zum Düsenstreifen 14 befestigt sind. An den freien Enden der Federbleche 40, 41 sind diese gemäß Fig. 9a aufgebogen. Im Bereich dieser Aufbiegung ist an dem unten liegenden Federblech 40 ein kurzer Stift oder eine Halbkugel 42 befestigt, die durch eine entsprechende Bohrung 43 im oberen Federblech 41 bei aufeinanderliegenden Federblechen 40, 41 dringt. Der Düsenstreifen 14 weist an seinem Ende eine entsprechende Bohrung 44 auf, durch die die Kugel 42 des Federblechs 40 zur Halterung des Streifens 14 an dem Einschubdorn 31 dringt. Wie Fig. 9e zeigt ist auf diese Weise der Düsensteifen 14 schnell ausgewechselt. Die beiden Federbleche 40, 41 sind lediglich mit dem Ende des Düsenstreifens 14 aufzubiegen und der Wechselvorgang zur Anordnung gemäß Fig. 9g und h durchzuführen.6 to 9, the quick-change device for the nozzle strip 14 is changed. There it consists of two spring plates 40, 41 pressed against one another, which are located one above the other and fastened parallel to the nozzle strip 14 on the end face of the insertion mandrel 31. At the free ends of the spring plates 40, 41, these are bent up according to FIG. 9a. In the region of this bend, a short pin or a hemisphere 42 is fastened to the spring plate 40 lying below and penetrates through a corresponding hole 43 in the upper spring plate 41 when spring plates 40, 41 lie one on top of the other. The nozzle strip 14 has at its end a corresponding bore 44 through which the ball 42 of the spring plate 40 penetrates to hold the strip 14 on the insertion mandrel 31. As shown in FIG. 9e, the nozzle stiffener 14 is quickly replaced in this way. The two spring plates 40, 41 are only to be bent open with the end of the nozzle strip 14 and the changeover process to the arrangement according to FIGS. 9g and h be carried out.
An dem Beispiel nach der Fig. 6 - 8 erstreckt sich weiterhin der Bolzen 34' nicht lotrecht, sondern waagerecht. Der Bolzen 34* überdeckt damit die Einschubbohrungen für die Schrauben 27, 28 ab, jedoch sind diese tief versenkt und brauchen kaum ausgetauscht zu werden. Weiterhin dringt der Bolzen 34' mit seinem freien Ende aus der Verschließeinheit 26 heraus und durchdringt dort einen Ring 45, der als Kontaktgeber für die ordnungsgemäß verriegelte Verschließeinheit 26 dient. Dazu ist der an der Verschließeinheit 26 seitlich befestigte Ring 45 elektrisch über die Drähte 46 mit der Steuereinheit des Düsenbalkens verbunden, dessen Wasserdruck nur dann zu erhöhen ist, wenn die Verschließeinheit 26 ordnungsgemäß durch den Bolzen 34' blockiert ist. In the example according to FIGS. 6-8, the bolt 34 'continues to extend not horizontally but horizontally. The bolt 34 * thus covers the insertion bores for the screws 27, 28, but these are recessed deeply and hardly need to be replaced. Furthermore, the bolt 34 'penetrates with its free end from the Capping unit 26 out and penetrates a ring 45 there, which serves as a contact for the properly locked capping unit 26. For this purpose, the ring 45, which is laterally attached to the closing unit 26, is electrically connected via the wires 46 to the control unit of the nozzle bar, the water pressure of which can only be increased if the closing unit 26 is properly blocked by the bolt 34 '.
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10107403 | 2001-02-14 | ||
| DE10107403 | 2001-02-14 | ||
| DE10112446A DE10112446A1 (en) | 2001-02-14 | 2001-03-13 | Closing unit for the nozzle strip on a nozzle bar for the hydrodynamic needling of fibers of a material web |
| DE10112446 | 2001-03-13 | ||
| PCT/EP2002/001275 WO2002064872A1 (en) | 2001-02-14 | 2002-02-07 | Closing unit for the nozzle strip on a nozzle beam for hydrodynamically needling fibres of a web of fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1360360A1 true EP1360360A1 (en) | 2003-11-12 |
| EP1360360B1 EP1360360B1 (en) | 2005-07-06 |
Family
ID=26008526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02719780A Revoked EP1360360B1 (en) | 2001-02-14 | 2002-02-07 | Closing unit for the nozzle strip on a nozzle beam for hydrodynamically needling fibres of a web of fabric |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6810565B2 (en) |
| EP (1) | EP1360360B1 (en) |
| JP (1) | JP3977258B2 (en) |
| AT (1) | ATE299197T1 (en) |
| BR (1) | BR0207224A (en) |
| CA (1) | CA2435922A1 (en) |
| DK (1) | DK1360360T3 (en) |
| TW (1) | TW565639B (en) |
| WO (1) | WO2002064872A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4439854B2 (en) * | 2002-10-08 | 2010-03-24 | 三菱レイヨン・エンジニアリング株式会社 | Non-woven fabric manufacturing method using pressurized steam jet nozzle |
| FR2845934B1 (en) * | 2002-10-22 | 2004-12-24 | Rieter Perfojet | DEVICE FOR PROJECTING JETS WITH DOUBLE SHUTTERING. |
| DE102004049146A1 (en) * | 2004-10-07 | 2006-04-13 | Fleissner Gmbh | Wasservernadelungsvorrichtung |
| DE102005005463A1 (en) * | 2005-02-04 | 2006-08-10 | Fleissner Gmbh | Nozzle bar with means for adjusting the working width and method for adjusting the working width of a nozzle strip |
| DE102006004459B3 (en) * | 2006-01-30 | 2007-06-21 | Fleissner Gmbh | O-ring assembly device for nozzle beam of liquid jets producing device, has releasing device with releasing unit, which is provided with contact surface, on one side, where surface is moved against O-ring in specific position of unit |
| ATE427365T1 (en) * | 2006-10-06 | 2009-04-15 | Groz Beckert Kg | NOZZLE STRIPS FOR TEXTILE PROCESSING |
| IT201600082924A1 (en) * | 2016-08-05 | 2018-02-05 | A C M Eng S R L | INJECTOR DEVICE FOR WATER JETS |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3403862A (en) * | 1967-01-06 | 1968-10-01 | Du Pont | Apparatus for preparing tanglelaced non-woven fabrics by liquid stream jets |
| US3613999A (en) * | 1970-04-29 | 1971-10-19 | Du Pont | Apparatus for jetting liquid onto fibrous material |
| US4085485A (en) * | 1976-07-26 | 1978-04-25 | International Paper Company | Process and device for forming non-woven fabrics |
| US4880168A (en) * | 1987-07-13 | 1989-11-14 | Honeycomb Systems, Inc. | Apparatus for jetting high velocity liquid streams onto fibrous materials |
| US5042722A (en) * | 1987-07-13 | 1991-08-27 | Honeycomb Systems, Inc. | Apparatus for jetting high velocity liquid streams onto fibrous materials |
| DE59601476D1 (en) * | 1995-01-23 | 1999-04-29 | Fleissner Maschf Gmbh Co | Nozzle bar on a device for generating liquid jets |
| DE19501738A1 (en) * | 1995-01-23 | 1996-07-25 | Fleissner Maschf Gmbh Co | Jet beam for matting fibres in web |
| US5778501A (en) * | 1997-05-29 | 1998-07-14 | Yu-Hau Machinery Co., Ltd. | Water-jet machine for maufacturing non-woven fabric |
| DE19745661A1 (en) * | 1997-10-17 | 1999-04-22 | Fleissner Maschf Gmbh Co | Nozzle bar on a device for generating liquid jets |
| DE19828118A1 (en) * | 1998-06-24 | 1999-12-30 | Fleissner Maschf Gmbh Co | Device with a nozzle bar for generating liquid jets for the jet interlacing of fibers on a textile web |
-
2002
- 2002-02-07 DK DK02719780T patent/DK1360360T3/en active
- 2002-02-07 JP JP2002564176A patent/JP3977258B2/en not_active Expired - Lifetime
- 2002-02-07 CA CA002435922A patent/CA2435922A1/en not_active Abandoned
- 2002-02-07 US US10/467,319 patent/US6810565B2/en not_active Expired - Fee Related
- 2002-02-07 EP EP02719780A patent/EP1360360B1/en not_active Revoked
- 2002-02-07 AT AT02719780T patent/ATE299197T1/en not_active IP Right Cessation
- 2002-02-07 BR BR0207224-6A patent/BR0207224A/en not_active Application Discontinuation
- 2002-02-07 WO PCT/EP2002/001275 patent/WO2002064872A1/en not_active Ceased
- 2002-02-08 TW TW091102355A patent/TW565639B/en not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02064872A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002064872A1 (en) | 2002-08-22 |
| ATE299197T1 (en) | 2005-07-15 |
| EP1360360B1 (en) | 2005-07-06 |
| US6810565B2 (en) | 2004-11-02 |
| CA2435922A1 (en) | 2002-08-22 |
| DK1360360T3 (en) | 2005-10-31 |
| TW565639B (en) | 2003-12-11 |
| JP2005502791A (en) | 2005-01-27 |
| US20040103506A1 (en) | 2004-06-03 |
| BR0207224A (en) | 2004-03-09 |
| JP3977258B2 (en) | 2007-09-19 |
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