EP0340458B1 - Apparatus for carding engine dust extraction - Google Patents

Apparatus for carding engine dust extraction Download PDF

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Publication number
EP0340458B1
EP0340458B1 EP89105757A EP89105757A EP0340458B1 EP 0340458 B1 EP0340458 B1 EP 0340458B1 EP 89105757 A EP89105757 A EP 89105757A EP 89105757 A EP89105757 A EP 89105757A EP 0340458 B1 EP0340458 B1 EP 0340458B1
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EP
European Patent Office
Prior art keywords
air
air collecting
conduit
branches
card
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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EP89105757A
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German (de)
French (fr)
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EP0340458A1 (en
Inventor
Heinz Nitschke
Werner Hauschild
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/76—Stripping or cleaning carding surfaces; Maintaining cleanliness of carding area
    • D01G15/763—Stripping or cleaning carding surfaces; Maintaining cleanliness of carding area by suction or blowing

Definitions

  • the invention relates to a device for dusting a card, according to the preamble of the first claim.
  • the card in addition to the carding function, the card also has the function of removing impurities from the cotton wool fed in. These are primarily fine impurities, since the coarse impurities were removed by the blowroom machines before the card.
  • This method of removing impurities includes, in a manner known per se, suction at those points at which impurities are removed from the material fed in.
  • the disadvantage is that the relatively long flexible hoses largely cover the card side, so that if maintenance work has to be carried out on this side, essentially all hoses together with the connection box have to be dismantled in order to release the card side for maintenance work.
  • Another disadvantage is the air resistance of the relatively long hoses.
  • the object of the invention is therefore to find a device which on the one hand releases the card side for maintenance work in a few simple steps and on the other hand keeps the flow resistance of the entire air duct as small as possible.
  • the invention is not to show where and how such dirt is excreted, but rather a device described below, by means of which the suction points, which are in themselves, are guided by air lines 6 onto a card end face 7 and on this side with one each Roll membrane 8 are provided as an elastic outlet mouth of the air lines 6 so that a removable air manifold 9 can be connected to it.
  • the rolling membranes 8 are usually made of elastic rubber, so that when the air collecting lines 9 are pressed against the rolling membranes 8, they can yield as far as is necessary for a good seal between all rolling membranes 8 and the air collecting line 9.
  • the air collecting line 9 has on both sides with a view of FIG. 2 seen, a hook 10 each, which is received by a provided on a cover wall 18 described later clamping device 11 (Fig. 2 and 3).
  • This tensioning device 11 (only one is shown in FIG. 3) has a counter hook 12 which engages in the hook 10 and is pivotably mounted in a cylindrical bearing bush 13, which is slidably and rotatably supported in one part in a slideway 14.
  • the slideway is provided in a guide element 43 which is firmly connected to the cover wall 18.
  • the part of the bearing bush 13 which is not guided in the slideway 14 is connected to one end of a connecting rod 15 which is pivotally held at the other end in a rocker arm 16 which in turn is pivotally received in a support 17 which is fixedly connected to the cover wall 18 is.
  • the tensioning device 11 functions in the sense of a tension lock, ie, when the rocker arm 16 is in the operating position and rests on the cover wall 18, the force acting on the hook 12 cannot open the rocker arm 16, but must be opened manually by pivoting the lever 16 away happen from the cover wall 18.
  • the cover wall 18 is in turn part of a housing 19, which also comprises a side wall 20 on which the air lines 6 and thus the rolling membranes 8 are held.
  • Fig. 1 u. 2 As from Fig. 1 u. 2 can be seen, 2 such housings are provided to the left and the air lines right, with a view of Fig. 1 u. 2 seen to record the drum 2.
  • the housing 19 are firmly connected to the card 1.
  • the air collecting line 9 comprises a left branch 21 and a right branch 22, viewed with a view of the figures, which unite in the exhaust air line 23.
  • Each branch of the air manifold has an end wall 24, which essentially forms a flat connection surface for the rolling membranes 8.
  • suction openings 25 are provided which are arranged congruently with the rolling membranes 8.
  • the air manifold 9 is housed in a chassis 26 which is movable by means of swivel casters 27.
  • handles are arranged on the chassis 26 in order to manually move the air collecting lines 9 from the position shown in FIG. 2 to an operating position (not shown) in which the end wall 24 lies closely against the rolling membranes 8, and the The counter hook 12 of each tensioning device 11 has taken the corresponding hook 10 of the air collecting lines, and the rocker arm 16 is pivoted against the cover wall 18 in order to create a tight connection between the rolling membranes 8 and the end wall 24.
  • the exhaust air line 23 is connected to an exhaust fan (not shown), which in turn transfers its exhaust air to a filter (not shown).
  • Fan and filter are part of the known prior art and are therefore not described in detail. It should only be mentioned that the fan and possibly also the filter could be provided on the chassis 26.
  • the hooks 10 In order to position the air collecting line 9 exactly when the chassis 26 is being moved, the hooks 10 have a guide surface 28 which is pushed onto the cover wall 18 with a small amount of play, for example 2-3 mm, so that the roller membranes 8 cover the suction openings 25.
  • FIG. 6 shows an air manifold 29, the air manifold branches 30 and 31 of which are stepped in the direction of flow of the air flowing therein such that the air speed is essentially the same over the entire length of the branch.
  • 31 can also be designed in such a way that a small increase in air speed, for example by one meter per second, occurs after each air inlet becomes.
  • the horizontal part 33 of the air manifold branch 30 and the horizontal part 34 of the air manifold branch 31 have a cross section which guarantees that the air speed in this horizontal part never drops below a given speed which is necessary in order to avoid that parts settle down from the air flow and on the wall of the horizontal part 33 respectively. 34 stay put.
  • the air manifold 29 is accommodated in the same way as the air manifold 9 in the chassis 26, which is indicated by dash-dotted lines.
  • FIG. 7 shows an air manifold 35 which, in contrast to the air manifold 9, has air manifold branches 36 and 37 directed upwards (as seen in FIG. 7), so that the air flow and thus also the separated dirt is conveyed downward, so that there is no danger settling of the extracted dirt.
  • the horizontal parts 38 and 38, respectively. 39 of the air manifold branches 36 resp. 37 also provided with a cross section, which prevents dirt from being excreted and remains in these horizontal parts.
  • the horizontal parts 38 and 39 open into a riser pipe 40, which in turn opens into the exhaust air pipe 23.
  • the air manifold 35 is received by the chassis 26, which in turn is indicated by dash-dotted lines.
  • Another variant for making the air collection lines movable is that the air collection line itself is pivotally attached (not shown) to the card, so that the card end face 7 is released for the maintenance work mentioned by pivoting away.
  • the tensioning device 11 can be dispensed with because the sealing edge 42 lies tight against the end wall 24 if there is negative pressure in the suction system arises.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Cleaning In General (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Entstauben einer Karde, gemäss dem Oberbegriff des ersten Anspruches.The invention relates to a device for dusting a card, according to the preamble of the first claim.

Es ist an sich bekannt, dass die Karde nebst der Kardierfunktion auch die Funktion hat, Verunreinigungen aus der eingespeisten Watte zu entfernen. Dabei handelt es sich in erster Linie um feine Verunreinigungen, da die groben Verunreinigungen bereits vor der Karde durch die Putzereimaschinen entfernt wurden.It is known per se that, in addition to the carding function, the card also has the function of removing impurities from the cotton wool fed in. These are primarily fine impurities, since the coarse impurities were removed by the blowroom machines before the card.

Zu diesem Entfernverfahren von Verunreinigungen gehört in an sich bekannter Weise eine Absaugung an denjenigen Stellen, an welchen Verunreinigungen aus dem eingespeisten Material entfernt werden.This method of removing impurities includes, in a manner known per se, suction at those points at which impurities are removed from the material fed in.

Erfahrungsgemäss ist die Anzahl und die Art solcher Reinigungs- respektiv Absaugstellen entsprechend der Kardenstruktion verschieden.Experience has shown that the number and type of such cleaning or suction points is corresponding to the Card construction different.

Aus diesem Grunde sind die in der Beschreibung gezeigten und beschriebenen Absaugstellen lediglich bspw. aufgeführt und sollen in keiner Weise den Erfindungsgedanken einschränken.For this reason, the suction points shown and described in the description are only listed, for example, and are in no way intended to limit the inventive concept.

In den bisher bekannten und von der Anmelderin unter der Bezeichnung C4 weltweit verkauften Karden wird die Absaugluft der Absaugstellen mittels flexibler Schläuche auf eine Seite der Karde und auf dieser Seite in einen an eine Unterdruckquelle angeschlossenen Anschlusskasten geführt.In the cards known to date and sold worldwide by the applicant under the designation C4, the suction air of the suction points is guided to one side of the card by means of flexible hoses and on this side to a connection box connected to a vacuum source.

Der Nachteil besteht darin, dass die relativ langen flexiblen Schläuche die Kardenseite zum grossen Teil überdecken, sodass, wenn Wartungsarbeiten auf dieser Seite durchgeführt werden müssen, im wesentlichen sämtliche Schläuche mitsamt dem Anschlusskasten, wieder demontiert werden müssen, um die Kardenseite für die Wartungsarbeiten freizugeben.The disadvantage is that the relatively long flexible hoses largely cover the card side, so that if maintenance work has to be carried out on this side, essentially all hoses together with the connection box have to be dismantled in order to release the card side for maintenance work.

Ein weiterer Nachteil besteht auch im Luftwiderstand der relativ langen Schläuche.Another disadvantage is the air resistance of the relatively long hoses.

Die Aufgabe der Erfindung besteht deshalb darin, eine Vorrichtung zu finden, welche einerseits mit wenigen Handgriffen die Kardenseite für Wartungsarbeiten freigibt und andererseits die Strömungswiderstände der gesamten Luftführung möglichst kleinhält.The object of the invention is therefore to find a device which on the one hand releases the card side for maintenance work in a few simple steps and on the other hand keeps the flow resistance of the entire air duct as small as possible.

Diese Aufgabe wird mit der im Kennzeichen des ersten Anspruches erwähnten Erfindung gelöst.This object is achieved with the invention mentioned in the characterizing part of the first claim.

Weitere vorteilhafte Ausführungsformen sind in den weiteren Ansprüchen aufgeführt.Further advantageous embodiments are listed in the further claims.

Die durch die Erfindung erreichten Vorteile sind im wesentlichen darin zu sehen, dass einerseits die Wartung der Maschine wesentlich vereinfacht wird, und dass andererseits die Betriebskosten um die Reduktion der Luftwiderstände günstiger werden.The advantages achieved by the invention are essentially to be seen in the fact that on the one hand the maintenance of the machine is considerably simplified and on the other hand the operating costs are reduced by reducing the air resistance.

Im folgenden wird die Erfindung anhand von lediglich Ausführungswege darstellenden Zeichnungen näher erläutert. Es zeigt:

Fig. 1
eine Ansicht einer Karde, mit einem Teil der erfindungsgemässen Vorrichtung (halbschematisch dargestellt),
Fig. 2
ein Grundriss von Fig. 1, teilweise geschnitten entsprechend den Schnittlinien I-I (Fig. 1) mit der erfindungsgemässen Vorrichtung,
Fig. 3
ein Detail von Fig. 2, vergrössert dargestellt,
Fig. 4
eine Ansicht eines Teiles der erfindungsgemässen Vorrichtung, halbschematisch dargestellt,
Fig. 5
einen Grundriss der Vorrichtung von Fig. 4
Fig. 6+7
je eine Variante des erfindungsgemässen Teiles von Fig. 4, halbschematisch dargestellt.
Fig. 8
ein Detail der erfindungsgemässen Vorrichtung, vergrössert dargestellt,
Eine Karde 1 umfasst einen Tambour 2, mit einem Kardendeckel 3, sowie einem Watteeinspeiseteil 4 und einem Faserbandabgabeteil 5. An sich sind alle diese Teile aus dem allgemeinen Stand der Technik bekannt, weshalb sie nicht besonders beschrieben und lediglich schematisch dargestellt sind.In the following, the invention is explained in more detail with the aid of drawings which only show execution routes. It shows:
Fig. 1
2 shows a view of a card with part of the device according to the invention (shown semi-schematically),
Fig. 2
2 shows a plan view of FIG. 1, partially sectioned according to section lines II (FIG. 1) with the device according to the invention,
Fig. 3
2 shows a detail of FIG. 2, enlarged,
Fig. 4
2 shows a view of a part of the device according to the invention, shown semi-schematically,
Fig. 5
a plan view of the device of FIG. 4
Fig. 6 + 7
A variant of the part according to the invention from FIG. 4, shown semi-schematically.
Fig. 8
a detail of the device according to the invention, shown enlarged,
A card 1 comprises a reel 2, with a card cover 3, as well as a cotton feed part 4 and a sliver dispensing part 5. All of these parts are known per se from the general prior art, which is why they are not particularly described and are only shown schematically.

Im weiteren ist es bekannt, dass im Stand der Technik die Karden je nach Konstruktion an verschiedenen Stellen abgesaugt werden, um den aus dem zu verarbeitenden Material ausgeschiedenen Schmutz wegzutransportieren.Furthermore, it is known that in the prior art, depending on the construction, the cards are suctioned off at various points in order to transport away the dirt which has been removed from the material to be processed.

Bei der Erfindung handelt es sich nicht darum, zu zeigen, wo und wie solcher Schmutz ausgeschieden wird, sondern um eine im folgenden beschriebene Vorrichtung, mittels welcher die an sich bestehenden Absaugstellen mittels Luftleitungen 6 auf eine Kardenstirnseite 7 geführt und auf dieser Seite mit je einer Rollmembrane 8 als elastischer Austrittsmündung der Luftleitungen 6 versehen werden , sodass eine entfernbare Luftsammelleitung 9 daran angeschlossen werden kann.The invention is not to show where and how such dirt is excreted, but rather a device described below, by means of which the suction points, which are in themselves, are guided by air lines 6 onto a card end face 7 and on this side with one each Roll membrane 8 are provided as an elastic outlet mouth of the air lines 6 so that a removable air manifold 9 can be connected to it.

Dabei bestehen die Rollmembranen 8 in der Regel aus elastischem Gummi, sodass beim Anpressen der Luftsammelleitungen 9 gegen die Rollmembranen 8 diese soweit nachgeben können, als dies für eine gute Dichtung zwischen allen Rollmembranen 8 und der Luftsammelleitung 9 erforderlich ist.The rolling membranes 8 are usually made of elastic rubber, so that when the air collecting lines 9 are pressed against the rolling membranes 8, they can yield as far as is necessary for a good seal between all rolling membranes 8 and the air collecting line 9.

Um das Anpressen der Luftsammelleitungen 9 an die Rollmembranen 8 zu gewährleisten, weist die Luftsammelleitung 9 auf beiden Seiten mit Blick auf Fig. 2 gesehen, je einen Haken 10 auf, welcher je durch eine an einer später beschriebenen Abdeckwand 18 vorgesehenen Spannvorrichtung 11 (Fig. 2 u. 3) aufgenommen wird.In order to ensure that the air collecting lines 9 are pressed against the rolling membranes 8, the air collecting line 9 has on both sides with a view of FIG. 2 seen, a hook 10 each, which is received by a provided on a cover wall 18 described later clamping device 11 (Fig. 2 and 3).

Diese Spannvorrichtung 11 (in Fig. 3 ist nur eine gezeigt) weist einen Gegenhaken 12 auf, welcher in den Haken 10 eingreift umd in einer zylinderförmigen Lagerbüchse 13 schwenkbar gelagert ist, die mit einem Teil in einer Gleitbahn 14 verschiebbar und drehbar gelagert ist. Dabei ist die Gleitbahn in einem Führungselement 43 vorgesehen, welches fest mit der Abdeckwand 18 verbunden ist.This tensioning device 11 (only one is shown in FIG. 3) has a counter hook 12 which engages in the hook 10 and is pivotably mounted in a cylindrical bearing bush 13, which is slidably and rotatably supported in one part in a slideway 14. The slideway is provided in a guide element 43 which is firmly connected to the cover wall 18.

Der nicht in der Gleitbahn 14 geführte Teil der Lagerbüchse 13 ist mit einem Ende einer Verbindungsstange 15 verbunden, welche mit dem anderen Ende schwenkbar in einem Kipphebel 16 gehalten ist, welcher seinerseits schwenkbar in einem Support 17 aufgenommen ist, welcher fest mit der Abdeckwand 18 verbunden ist. Die Spannvorrichtung 11 funktioniert im Sinne eines Spannverschlusses, d.h., wenn der Kipphebel 16 in der Betriebsposition ist und an der Abdeckwand 18 aufliegt, kann die auf den Haken 12 wirkende Kraft den Kipphebel 16 nicht öffnen, sondern das Öffnen muss manuell durch Wegschwenken des Hebels 16 von der Abdeckwand 18 geschehen.The part of the bearing bush 13 which is not guided in the slideway 14 is connected to one end of a connecting rod 15 which is pivotally held at the other end in a rocker arm 16 which in turn is pivotally received in a support 17 which is fixedly connected to the cover wall 18 is. The tensioning device 11 functions in the sense of a tension lock, ie, when the rocker arm 16 is in the operating position and rests on the cover wall 18, the force acting on the hook 12 cannot open the rocker arm 16, but must be opened manually by pivoting the lever 16 away happen from the cover wall 18.

Die Abdeckwand 18 ist ihrerseits Bestandteil eines Gehäuses 19, welches ebenfalls eine Seitenwand 20 umfasst, an welcher die Luftleitungen 6 und damit die Rollmembranen 8 festgehalten sind.The cover wall 18 is in turn part of a housing 19, which also comprises a side wall 20 on which the air lines 6 and thus the rolling membranes 8 are held.

Wie aus den Fig. 1 u. 2 ersichtlich, sind 2 solche Gehäuse vorgesehen, um die Luftleitungen links und rechts, mit Blick auf die Fig. 1 u. 2 gesehen, des Tambours 2 aufzunehmen. Die Gehäuse 19 sind fest mit der Karde 1 verbunden.As from Fig. 1 u. 2 can be seen, 2 such housings are provided to the left and the air lines right, with a view of Fig. 1 u. 2 seen to record the drum 2. The housing 19 are firmly connected to the card 1.

Wie aus den Figuren 2, 4 und 5 ersichtlich, umfasst die Luftsammelleitung 9 einen linken Ast 21 und einen rechten Ast 22, mit Blick auf die Figuren gesehen, welche sich in der Abluftleitung 23 vereinigen. Dabei weist jeder Ast der Luftsammelleitung eine Stirnwand 24 auf, welche im wesentlichen eine ebene Anschlussfläche für die Rollmembranen 8 bildet.As can be seen from FIGS. 2, 4 and 5, the air collecting line 9 comprises a left branch 21 and a right branch 22, viewed with a view of the figures, which unite in the exhaust air line 23. Each branch of the air manifold has an end wall 24, which essentially forms a flat connection surface for the rolling membranes 8.

In diesen Stirnwänden sind Ansaugöffnungen 25 vorgesehen, welche deckungsgleich mit den Rollmembranen 8 angeordnet sind.In these end walls suction openings 25 are provided which are arranged congruently with the rolling membranes 8.

Die Luftsammelleitung 9 ist in einem Fahrgestell 26 untergebracht, welches mittels Schwenkrollen 27 fahrbar ist.The air manifold 9 is housed in a chassis 26 which is movable by means of swivel casters 27.

Wie aus Fig. 5 ersichtlich, sind 4 Schwenkrollen 27 vorgesehen.5, 4 swivel casters 27 are provided.

Ebenso sind am Fahrgestell 26 Griffe (nicht gezeigt) angeordnet, um die Luftsammelleitungen 9 aus der in Fig. 2 gezeigten Position in eine Betriebsposition (nicht dargestellt) von Hand zu verschieben, in welcher die Stirnwand 24 dicht an den Rollmembranen 8 anliegt, und der Gegenhaken 12 jeder Spannvorrichtung 11 den entsprechenden Haken 10 der Luftsammelleitungen ergriffen hat, und der Kipphebel 16 gegen die Abdeckwand 18 geschwenkt ist, um eine dichte Verbindung zwischen den Rollmembranen 8 und der Stirnwand 24 zu erstellen.Likewise, handles (not shown) are arranged on the chassis 26 in order to manually move the air collecting lines 9 from the position shown in FIG. 2 to an operating position (not shown) in which the end wall 24 lies closely against the rolling membranes 8, and the The counter hook 12 of each tensioning device 11 has taken the corresponding hook 10 of the air collecting lines, and the rocker arm 16 is pivoted against the cover wall 18 in order to create a tight connection between the rolling membranes 8 and the end wall 24.

Die Abluftleitung 23 ist mit einem Absaugventilator (nicht dargestellt) verbunden, welcher seinerseits seine Abluft einem Filter (nicht dargestellt) übergibt. Ventilator und Filter sind Bestandteile des an sich bekannten Standes der Technik und deshalb nicht näher beschrieben. Es sei lediglich erwähnt, dass der Ventilator und gegebenenfalls auch der Filter auf dem Fahrgestell 26 vorgesehen werden könnten.The exhaust air line 23 is connected to an exhaust fan (not shown), which in turn transfers its exhaust air to a filter (not shown). Fan and filter are part of the known prior art and are therefore not described in detail. It should only be mentioned that the fan and possibly also the filter could be provided on the chassis 26.

Um die Luftsammelleitung 9 beim Verschieben des Fahrgestells 26 genau zu positionieren, weisen die Haken 10 eine Führungsfläche 28 auf, welche mit einem kleinen Spiel, bspw. 2 - 3 mm auf die Abdeckwand 18 aufgeschoben wird, sodass die Rollmembranen 8 die Absaugöffnungen 25 überdecken.In order to position the air collecting line 9 exactly when the chassis 26 is being moved, the hooks 10 have a guide surface 28 which is pushed onto the cover wall 18 with a small amount of play, for example 2-3 mm, so that the roller membranes 8 cover the suction openings 25.

Die Fig. 6 zeigt eine Luftsammelleitung 29, deren Luftsammelleitungsäste 30 und 31 derart in Fliessrichtung der darin strömenden Luft abgestuft sind, dass die Luftgeschwindigkeit auf der ganzen Länge des Astes im wesentlichen gleich ist.6 shows an air manifold 29, the air manifold branches 30 and 31 of which are stepped in the direction of flow of the air flowing therein such that the air speed is essentially the same over the entire length of the branch.

Ausserdem weist jeder Luftleitungsast 30 resp. 31 an seinem Anfang, in Strömungsrichtung der Luft gesehen, eine einstellbare Drosselblende 32 auf, mittels welcher eine Falschluftmenge in jeden Luftleitungsast 30 resp. 31 eingelassen werden kann, um ein Absetzen von Material im Luftleitungsast zu vermeiden. Mittels einer solchen Blende kann die Luftgeschwindigkeit im Ast genau nach Bedarf eingestellt werden.In addition, each air line branch 30 resp. 31 at its beginning, seen in the direction of flow of the air, an adjustable throttle diaphragm 32, by means of which a quantity of false air in each air duct branch 30, respectively. 31 can be let in to prevent material from settling in the air line branch. With such an aperture, the air speed in the branch can be set exactly as required.

Die Abstufungen der Luftsammelleitungsäste 30 resp. 31 kann jedoch auch derart gestaltet werden, dass eine kleine Steigerung der Luftgeschwindigkeit, bspw. um einen Meter pro Sekunde, nach jedem Lufteinlass erreicht wird. Im weiteren weist der horizontale Teil 33 des Luftsammelleitungsastes 30 und der horizontale Teil 34 des Luftsammelleitungsastes 31 einen Querschnitt auf, welcher garantiert, dass die Luftgeschwindigkeit in diesem horizontalen Teil nie unter eine gegebene Geschwindigkeit sinkt, welche erforderlich ist, um zu vermeiden, dass sich Teile aus dem Luftstrom nach unten absetzen und an der Wand des horizontalen Teiles 33 resp. 34 liegen bleiben.The gradations of the air manifold branches 30 and. However, 31 can also be designed in such a way that a small increase in air speed, for example by one meter per second, occurs after each air inlet becomes. Furthermore, the horizontal part 33 of the air manifold branch 30 and the horizontal part 34 of the air manifold branch 31 have a cross section which guarantees that the air speed in this horizontal part never drops below a given speed which is necessary in order to avoid that parts settle down from the air flow and on the wall of the horizontal part 33 respectively. 34 stay put.

Die Luftsammelleitung 29 ist in gleicher Weise wie die Luftsammelleitung 9 im Fahrgestell 26 untergebracht, das mit strichpunktierten Linien angedeutet ist.The air manifold 29 is accommodated in the same way as the air manifold 9 in the chassis 26, which is indicated by dash-dotted lines.

Fig. 7 zeigt eine Luftsammelleitung 35, welche im Gegensatz zur Luftsammelleitung 9, aufwärts (mit Blick auf Fig. 7 gesehen), gerichtete Luftsammelleitungsäste 36 und 37 aufweist, sodass die Luftströmung und damit auch der ausgeschiedenen Schmutz nach unten befördert wird, sodass keine Gefahr des Absetzens des abgesaugten Schmutzes besteht. Ausserdem sind, wie in Fig. 6 erwähnt, die horizontalen Teile 38 resp. 39 der Luftsammelleitungsäste 36 resp. 37 ebenfalls mit einem Querschnitt versehen, welcher verhindert, dass Schmutz ausgeschieden wird und in diesen horizontalen Teilen liegenbleibt.FIG. 7 shows an air manifold 35 which, in contrast to the air manifold 9, has air manifold branches 36 and 37 directed upwards (as seen in FIG. 7), so that the air flow and thus also the separated dirt is conveyed downward, so that there is no danger settling of the extracted dirt. In addition, as mentioned in Fig. 6, the horizontal parts 38 and 38, respectively. 39 of the air manifold branches 36 resp. 37 also provided with a cross section, which prevents dirt from being excreted and remains in these horizontal parts.

Die horizontalen Teile 38 und 39 münden in eine Steigleitung 40, welche ihrerseits in die Abluftleitung 23 mündet.The horizontal parts 38 and 39 open into a riser pipe 40, which in turn opens into the exhaust air pipe 23.

Wie die Luftsammelleitung 29 wird auch die Luftsammelleitung 35 durch das Fahrgestell 26 aufgenommen, das wiederum mit strichpunktierten Linien angedeutet ist.Like the air manifold 29, the air manifold 35 is received by the chassis 26, which in turn is indicated by dash-dotted lines.

Eine weitere Variante um die Luftsammelleitungen bewegbar zu gestalten, besteht darin, dass die Luftsammelleitung selbst schwenkbar (nicht gezeigt) an der Karde befestigt ist, sodass durch das Wegschwenken die Kardenstirnseite 7 für die genannten Wartungsarbeiten frei gegeben sind.Another variant for making the air collection lines movable is that the air collection line itself is pivotally attached (not shown) to the card, so that the card end face 7 is released for the maintenance work mentioned by pivoting away.

Wird im weiteren die Rollmembrane 8 durch die in Fig. 8 gezeigte Trompetenmündung 41 (nur eine gezeigt) mit flexiblem Dichtungsrand 42 verwendet, so kann auf die Spannvorrichtung 11 verzichtet werden, weil der Dichtungsrand 42 dicht an der Stirnwand 24 anliegt, wenn Unterdruck im Saugsystem entsteht.If the rolling diaphragm 8 is further used by the trumpet mouth 41 (only one shown) shown in FIG. 8 with a flexible sealing edge 42, then the tensioning device 11 can be dispensed with because the sealing edge 42 lies tight against the end wall 24 if there is negative pressure in the suction system arises.

Claims (11)

  1. Apparatus for dust extraction of a card (1), with several suction positions whose numbers are predefined and which are situated in the card and whose suction air is guided by means of air conduits (6) on the one side of the card (1), characterized in that each air conduit (6) comprises a discharge opening (8) on the said side (7) and that a removable air collecting conduit (9; 29; 35) being provided with a number of suction openings (25) equivalent to the number of discharge openings (8) is connectable to the said discharge openings (8).
  2. Apparatus as claimed in claim 1, characterized in that the discharge openings (8) are provided in form of elastic rolling membranes (8).
  3. Apparatus as claimed in claim 1, characterized in that the air collecting conduit (9; 29; 35) is arranged in an undercarriage 26.
  4. Apparatus as claimed in claim 1, characterized in that the air collecting conduit (9; 29; 35) comprises guiding elements (28) to ensure the precise positioning of the air collecting conduit with respect to the discharge openings (8).
  5. Apparatus as claimed in claim 1, characterized in that the air conduits are provided in a casing (19) for rigid arrangement of the discharge openings (8).
  6. Apparatus as claimed in claim 5, characterized in that every casing (19) is provided with a tensioning device (11), by means of which the air collecting conduit (9; 29; 35) is held in such a way that the suction openings (25) provided in the air collecting conduit coincide with the rolling membranes (8) and that the rolling membranes (8) sit close to the air collecting conduit.
  7. Apparatus as claimed in claim 1, characterized in that the air collecting branches (30 and 31) are graded in such a way that the rising speed of the air in said branches substantially remains the same.
  8. Apparatus as claimed in claim 7, characterized in that the horizontal parts (33, 34) of the air collecting branches (30, 31) have a cross section which prevents dirt particles from being separated from the air stream.
  9. Apparatus as claimed in claim 7, characterized in that every air collecting branch (30, 31) comprises at its beginning, as seen in the direction of flow of the air, an adjustable throttle diaphragm (32).
  10. Apparatus as claimed in claim 1, characterized in that the air collecting conduit (35) is arranged in such a way that the air stream in the air collecting branches (36, 37) flows downwardly.
  11. Apparatus as claimed in one of the previous claims, characterized in that the air speed in the horizontal sections (33, 34; 38, 39) is higher than in the vertical air collecting branches (30, 31; 36, 37).
EP89105757A 1988-04-29 1989-04-01 Apparatus for carding engine dust extraction Expired - Lifetime EP0340458B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH160988 1988-04-29
CH1609/88 1988-04-29

Publications (2)

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EP0340458A1 EP0340458A1 (en) 1989-11-08
EP0340458B1 true EP0340458B1 (en) 1993-08-11

Family

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Application Number Title Priority Date Filing Date
EP89105757A Expired - Lifetime EP0340458B1 (en) 1988-04-29 1989-04-01 Apparatus for carding engine dust extraction

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US (1) US4985966A (en)
EP (1) EP0340458B1 (en)
JP (1) JPH01314735A (en)
DE (1) DE58905213D1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03180517A (en) * 1989-12-06 1991-08-06 Mas Fab Rieter Ag Card
JP3082969B2 (en) * 1990-09-17 2000-09-04 ツリュツラー ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディトゲゼルシャフト Equipment installed on cards for cotton fibers, clearer machines, etc.
GB9115881D0 (en) * 1991-07-23 1991-09-04 Carding Spec Canada Card engine guard
DE59301396D1 (en) * 1992-07-23 1996-02-22 Rieter Ag Maschf Carding machine or blowroom machine with a suction device
EP0585196B1 (en) * 1992-08-04 1998-03-11 Maschinenfabrik Rieter Ag Casing of a carding machine
US5259092A (en) * 1992-10-13 1993-11-09 John D. Hollingsworth On Wheels, Inc. Method and apparatus for cleaning carding flats
DE19522154A1 (en) * 1995-06-19 1997-01-02 Rieter Ag Maschf Method for operating a card and suction device for carrying out the method
EP0894878A3 (en) 1997-07-30 2000-04-19 Maschinenfabrik Rieter Ag Flock cleaner
US6145166A (en) * 1997-07-30 2000-11-14 Maschinenfabrik Rieter Ag Trash elimination apparatuses for fiber cleaning aggregates
EP1329288B1 (en) 1997-10-01 2005-07-06 Maschinenfabrik Rieter Ag Grinding for clothing
WO2000013850A1 (en) 1998-09-09 2000-03-16 Maschinenfabrik Rieter Ag Grinding of clothing
DE10143671A1 (en) * 2001-09-06 2003-03-27 Truetzschler Gmbh & Co Kg Device on a card, cleaning machine or the like. for textile material
US11078655B2 (en) * 2019-02-19 2021-08-03 B/E Aerospace, Inc. Vacuum waste system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2284750A (en) * 1941-05-07 1942-06-02 Spring Packing Corp Delinting waste puller
US2857627A (en) * 1954-01-16 1958-10-28 Thoma Company G M B H Strand suction arrangement for carding engines
US2984263A (en) * 1960-03-10 1961-05-16 Grinnell Corp Method and apparatus for collecting lint and fly
US3142856A (en) * 1961-12-20 1964-08-04 Grinnell Corp Textile machinery cleaning apparatus and method
FR2300828A1 (en) * 1975-02-14 1976-09-10 Devauze Ets Removing trash from lap on carding machine - using vacuum heads and recycling suitable fibres after filtering
DE2658441C2 (en) * 1976-12-23 1986-09-11 Stahlecker, Fritz, 7347 Bad Überkingen Open-end spinning machine with at least one movable maintenance device
US4198731A (en) * 1977-10-31 1980-04-22 John D. Hollingsworth On Wheels, Inc. Carding machine cleaning apparatus
US4227285A (en) * 1979-02-02 1980-10-14 Marvin Hamrick Textile card cleaning apparatus
EP0097020B1 (en) * 1982-06-12 1986-09-03 Carding Specialists (Canada) Limited Improvements relating to carding engines

Also Published As

Publication number Publication date
US4985966A (en) 1991-01-22
JPH01314735A (en) 1989-12-19
DE58905213D1 (en) 1993-09-16
EP0340458A1 (en) 1989-11-08

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