EP0717132A2 - Open-end spinning machine - Google Patents

Open-end spinning machine Download PDF

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Publication number
EP0717132A2
EP0717132A2 EP95114842A EP95114842A EP0717132A2 EP 0717132 A2 EP0717132 A2 EP 0717132A2 EP 95114842 A EP95114842 A EP 95114842A EP 95114842 A EP95114842 A EP 95114842A EP 0717132 A2 EP0717132 A2 EP 0717132A2
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EP
European Patent Office
Prior art keywords
dirt
open
rotor
spinning machine
end spinning
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Granted
Application number
EP95114842A
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German (de)
French (fr)
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EP0717132A3 (en
EP0717132B1 (en
Inventor
Heinz-Georg Wassenhoven
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Oerlikon Textile GmbH and Co KG
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W Schlafhorst AG and Co
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Publication of EP0717132A3 publication Critical patent/EP0717132A3/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/36—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls with means for taking away impurities

Definitions

  • the invention relates to an open-end spinning machine with a plurality of workstations arranged next to one another, which have a spinning rotor supported on a support disk bearing, rotating in a vacuum-loaded rotor housing, and a fiber sliver opening device with a release roller rotating in a swivel housing, the rotor housing facing forward through a swiveling roof arranged fiber channel plate is closable and a dirt disposal device is attached below a dirt outlet opening arranged in the swivel housing.
  • Open-end spinning machines of this type are known and are described in detail, for example, in the "AUTOCORO" manual from the company Schlafhorst.
  • a machine-long, all-round dirt removal belt is arranged below the sliver opening devices of the spinning units of the rotor spinning machines, which picks up the dirt escaping at the dirt separation channel of the swivel housing and transports it to a dirt transfer point on the machine end, where the belts are emptied.
  • DE 21 12 170 A1 describes, for example, a rotor spinning device in which a sliver fed between the feed roller and a feed trough is broken down into individual fibers by a disintegration roller. In this process dirt particles and fibers are also largely separated.
  • the opening roller transports both components via a fiber guide surface into the area of a dirt outlet opening. During this transport, both the fibers and the dirt particles are accelerated in the shortest possible time to approximately the peripheral speed of the opening roller by the opening roller or by an air flow rotating with the opening roller.
  • the mass particles, as fibers and dirt particles endeavor to leave the circular path tangentially as soon as the inevitable mechanical guidance is interrupted, as is done in the area of the dirt outlet opening of the opening roller housing.
  • a dirt collecting space is arranged directly below the dirt outlet opening and is connected to a central suction device of the spinning machine via a connecting channel.
  • the dirt outlet opening is also designed here as a suction opening for an air flow entering the opening roller housing.
  • This air flow directed onto the opening roller holds the fibers, which have a relatively large specific surface area in relation to their small mass, as it were, as a pneumatic guide, on the opening roller.
  • the dirt particles which, due to their size and mass, have a significantly higher kinetic energy, overcome this air flow and are thrown away tangentially.
  • a dirt chamber is arranged directly after the dirt outlet opening of the opening roller housing and is divided into a dirt separation zone and a dirt removal zone by an air guide wall which is arranged at a short distance from the dirt outlet opening.
  • an OE rotor spinning device with a dirt chamber arranged below the opening roller which has two separate air flow systems, each with its own suction openings.
  • An air flow system effective in the bottom area of the dirt chamber disposes of the dirt particles combed out by the opening roller, while a second air flow system having an opposite effect opens into a suction flow circulating with the opening roller.
  • the special arrangement of the intake opening leads to a more or less clear separation of the two flow systems.
  • the post-published DE 43 34 483 describes an open-end spinning device which has an opening roller housing which is arranged in the cover element of the spinning unit and which can be pivoted with the cover element.
  • the opening roller housing has a dirt outlet opening, to which a pneumatically actuated dirt-receiving element is assigned at a distance from one another.
  • a free space in connection with the ambient air is provided between the dirt outlet opening and the dirt receiving element.
  • the dirt-receiving element is detachably fastened to the cover element mounted on a pivot axis and, when the spinning device is opened, is tilted downward about the pivot axis together with the cover element.
  • the dirt separation on the opening roller housing of a rotor spinning machine is an important element with regard to a perfect processing of fibrous materials.
  • the technology of the dirt separation devices seems relatively simple, these devices are very difficult devices that are sensitive to changes. Even small modifications in the area of the dirt outlet openings can permanently change the flow conditions and thus have a considerable influence on the achievable spinning results.
  • the invention has for its object to provide a pneumatic dirt disposal device that can be used universally.
  • the inventive design of the pneumatic dirt suction device has the advantage, among other things, that subsequent installation of the device is also possible on those rotor spinning machines which were originally designed for mechanical dirt disposal. Design changes in the area of the spinning stations are not necessary for this.
  • the new dirt suction device makes it possible to equip a rotor spinning machine with either a mechanical or a pneumatic dirt disposal device, it being possible for the choice made to be corrected at a later point in time.
  • An existing mechanical dirt disposal system can, for example, be carried out without problems the pneumatic dirt suction device according to the invention can be replaced.
  • the special design of the dirt suction device according to the invention and the way in which it is attached to the spinning units ensure that all the functions of the spinning units, in particular the opening of the top for cleaning the spinning station, are in no way impaired.
  • the pneumatic dirt suction device arranged below the swivel housing of the rotor spinning units essentially consists of a dirt hopper, which is connected via a rear suction nozzle directly or indirectly to a machine-length dirt channel that is pressurized with vacuum.
  • the dirt holding funnel has a transverse connecting strip with bores, via which the holding funnel can be fixed to a support rail arranged on the spinning units. If necessary, the guide duct parts of a mechanical dirt disposal device are also fastened to these support rails.
  • the dirt holding funnel is designed as an asymmetrical injection molded part, preferably made of plastic.
  • asymmetrical injection molded part preferably made of plastic.
  • Such a component can on the one hand be easily adapted to the structural conditions of existing OE spinning machines, and on the other hand such injection molded parts, which is also advantageous given the large number of spinning stations of such machines, can be manufactured inexpensively.
  • the rear suction connection of the dirt collecting funnel is guided to the rear just below the support rail of the rotor spinning units and connected to the dirt duct under pressure via a line, for example a spiral hose, etc.
  • the dirt channel is designed as a machine-long suction traverse, which is arranged in the machine longitudinal axis of the spinning machine, for example below a channel for the energy supply.
  • the dirt channel is connected on the machine end to a spinning device's own suction device, which has, among other things, a filter device and a vacuum source.
  • FIG. 1 shows an intermediate unit 2 of an open-end rotor spinning machine 1.
  • Such rotor spinning machines each have a drive unit (not shown) and an end unit (also not shown) and up to twelve of the intermediate units 2 shown.
  • each of these intermediate units 2 has twenty-four workplaces 3 (twelve on each side).
  • the work stations 3 each have an OE rotor spinning unit 4 and a winding device 5.
  • each intermediate unit 2 has a suction channel 6, via which, for example, the rotor housing 20 of the rotor spinning unit 4 is subjected to a vacuum.
  • An electronics duct 7 and a dirt duct 8 are arranged below the suction duct 6.
  • the dirt channel 8, which is designed as a machine-long suction traverse, is connected to a spinning suction device 9, which has, among other things, a vacuum source 10, a filter element 11 and a dirt disposal 12.
  • the pneumatic dirt suction devices 13 of the rotor spinning units 4 are connected to the dirt channel 8.
  • the rotor spinning units 4 are shown in more detail in FIGS. 2 and 3.
  • a spinning rotor 17 is mounted on a support disk bearing 15 with its rotor shaft 16.
  • An axial bearing 18 is also provided to absorb axial forces.
  • the spinning rotor 17, which is driven by a tangential belt 19, rotates at high speed in the rotor housing 20, which is connected to the suction channel 6 via a connecting line 21.
  • the rotor housing 20 is closed at the front by a fiber channel plate 22 which is fastened to a pivotable top 23.
  • a thread draw-off nozzle 25 is arranged in the center of an extension 24 of the fiber channel plate 22.
  • a two-part fiber guide channel 26 opens into the extension 24, which connects the sliver opening device 27 to the interior of the spinning rotor 17.
  • the top 23 can be pivoted about the pivot axis 29 in the direction S after loosening a bolt 28 and thereby tilted into a first cleaning position or a second maintenance position.
  • the sliver opening device 27 consists essentially of a opening roller 31 rotating in a swivel housing 30, a sliver feed cylinder 32 and a Sliver feed trough 33.
  • the sliver 34 is fed to the sliver opening device 27 via a compressor 35.
  • the swivel housing 30 surrounding the opening roller 31 is partially open, that is to say it has a dirt outlet opening 36 directed downward.
  • a pneumatic dirt suction device 13 is arranged at a distance below the swivel housing 30 and can be fixed on a support rail 37 of the rotor spinning unit 4.
  • the dirt suction device 13 has an asymmetrically shaped dirt holding funnel 38, which is connected via a rear suction nozzle 39 to the dirt channel 8 of the rotor spinning machine 1 which is under pressure.
  • the dirt holding funnel 38 is constructed asymmetrically both in the area of its receptacle and in its rear connection area.
  • the dirt hopper also has a terminal block 40 with mounting holes 41 in the upper region.
  • the dirt holding funnel 38 can be fixed on the support rail 37 of the rotor spinning units 4 via the fastening bores 41.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

An open end spinning machine has, next to each other, many working stations each with a spinning rotor supported by disc mountings and contained in a housing under low pressure and with a sliver disseminator having a rotating disseminating roller in a hinged case. The rotor housing can be shut at the front by a fibre channel plate placed on a hinged cover and a dirt disposal appts. is fixed in place below a dirt exit in the hinged housing. This appts. (13) is pneumatic and has a dirt receptacle funnel (38) located at a distance from the exit (36) on the hinged housing and is connected by a suction pipe (39) to a duct (9) for dirt running along the machine. The appts. is designed and fixed on the rotor spinning unit (4) so that opening of the unit cover (23) is not impeded.

Description

Die Erfindung betrifft eine Offenend-Spinnmaschine mit einer Vielzahl nebeneinander angeordneter Arbeitsstellen, die einen auf einer Stützscheibenlagerung abgestützen, in einem unterdruckbeaufschlagten Rotorgehäuse umlaufenden Spinnrotor sowie eine Faserbandauflöseeinrichtung mit einer in einem Schwenkgehäuse rotierenden Auslösewalze aufweisen, wobei das Rotorgehäuse nach vorne durch eine an einem schwenkbaren Verdeck angeordnete Faserkanalplatte verschließbar ist und unterhalb einer im Schwenkgehäuse angeordneten Schmutzaustrittsöffnung eine Schmutzentsorgungseinrichtung befestigt ist.The invention relates to an open-end spinning machine with a plurality of workstations arranged next to one another, which have a spinning rotor supported on a support disk bearing, rotating in a vacuum-loaded rotor housing, and a fiber sliver opening device with a release roller rotating in a swivel housing, the rotor housing facing forward through a swiveling roof arranged fiber channel plate is closable and a dirt disposal device is attached below a dirt outlet opening arranged in the swivel housing.

Derartige Offenend-Spinnmaschinen sind bekannt und beispielsweise im Handbuch "AUTOCORO" der Firma Schlafhorst ausführlich beschrieben. Wie auf Seite 1.3.20 dargestellt, ist unterhalb der Faserbandauflöseeinrichtungen der Spinneinheiten der Rotorspinnmaschinen ein maschinenlanges, umlaufendes Schmutzabtransportband angeordnet, das den am Schmutzausscheidekanal des Schwenkgehäuses austretenden Schmutz aufnimmt und an eine maschinenendseitig angeordnete Schmutzübergabestelle transportiert, wo die Bänder entleert werden.Open-end spinning machines of this type are known and are described in detail, for example, in the "AUTOCORO" manual from the company Schlafhorst. As shown on page 1.3.20, a machine-long, all-round dirt removal belt is arranged below the sliver opening devices of the spinning units of the rotor spinning machines, which picks up the dirt escaping at the dirt separation channel of the swivel housing and transports it to a dirt transfer point on the machine end, where the belts are emptied.

Es ist weiter bekannt, im Bereich der Faserbandaufloseeinrichtungen anstelle mechanischer Schmutzentsorgungseinrichtungen pneumatische Schmutzabsaugeinrichtungen anzuordnen.It is also known to arrange pneumatic dirt suction devices instead of mechanical dirt disposal devices in the area of the fiber sliver dissolving devices.

Die DE 21 12 170 A1 beschreibt beispielsweise eine Rotorspinnvorrichtung, bei der ein zwischen der Einzugswalze und einer Speisemulde zugeführtes Faserband durch eine Auflösewalze in Einzelfasern zerlegt wird. Bei diesem Vorgang werden auch weitestgehend Schmutzpartikel und Fasern getrennt. Die Auflösewalze transportiert beide Bestandteile über eine Faserleitfläche in den Bereich einer Schmutzaustrittsöffnung. Bei diesem Transport werden sowohl die Fasern als auch die Schmutzpartikel durch die Auflösewalze beziehungsweise durch eine mit der Auflösewalze umlaufende Luftströmung in kürzester Zeit auf annähernd Umfangsgeschwindigkeit der Auflösewalze beschleunigt. Die Masseteilchen, als Fasern und Schmutzpartikel, haben dabei infolge der auf sie wirkenden Zentrifugalkraft das Bestreben, die Kreisbahn tangential zu verlassen sobald die zwangsläufige mechanische Führung unterbrochen wird, wie dies im Bereich der Schmutzaustrittsöffnung des Auflösewalzengehäuses geschieht.DE 21 12 170 A1 describes, for example, a rotor spinning device in which a sliver fed between the feed roller and a feed trough is broken down into individual fibers by a disintegration roller. In this process dirt particles and fibers are also largely separated. The opening roller transports both components via a fiber guide surface into the area of a dirt outlet opening. During this transport, both the fibers and the dirt particles are accelerated in the shortest possible time to approximately the peripheral speed of the opening roller by the opening roller or by an air flow rotating with the opening roller. As a result of the centrifugal force acting on them, the mass particles, as fibers and dirt particles, endeavor to leave the circular path tangentially as soon as the inevitable mechanical guidance is interrupted, as is done in the area of the dirt outlet opening of the opening roller housing.

Unmittelbar unterhalb der Schmutzaustrittsöffnung ist ein Schmutzsammelraum angeordnet, der über einen Anschlußkanal an eine zentrale Absaugeinrichtung der Spinnmaschine angeschlossen ist.A dirt collecting space is arranged directly below the dirt outlet opening and is connected to a central suction device of the spinning machine via a connecting channel.

Eine vergleichbare, im Bereich der Schmutzaustrittsöffnung etwas modifizierte Offenend-Spinnvorrichtung ist in der DE 28 56 028 C2 beschrieben.
Um zu verhindern, daß sich im Bereich der Schmutzaustrittsöffnung neben den Schmutzpartikeln auch spinnbare Fasern von der Auflösewalze lösen, ist hier die Schmutzaustrittsöffnung auch als Ansaugöffnung für eine in das Auflösewalzengehäuse eintretende Luftströmung ausgelegt. Diese auf die Auflösewalze gerichtete Luftstromung hält die Fasern, die im Verhältnis zu ihrer geringen Masse eine relativ große spezifische Oberfläche aufweisen, quasi als pneumatische Führung an der Auflösewalze fest. Die Schmutzpartikel, die aufgrund ihrer Größe und Masse eine deutlich höhere kinetische Energie aufweisen, überwinden dagegen diese Luftströmung und werden tangential weggeschleudert.A comparable open-end spinning device, somewhat modified in the area of the dirt outlet opening, is described in DE 28 56 028 C2.
In order to prevent that in the area of the dirt outlet opening, in addition to the dirt particles, spinnable fibers also detach from the opening roller, the dirt outlet opening is also designed here as a suction opening for an air flow entering the opening roller housing. This air flow directed onto the opening roller holds the fibers, which have a relatively large specific surface area in relation to their small mass, as it were, as a pneumatic guide, on the opening roller. The dirt particles, which, due to their size and mass, have a significantly higher kinetic energy, overcome this air flow and are thrown away tangentially.

Die weggeschleuderten Schmutzpartikel werden anschließend von einer weiteren Luftströmung erfaßt und über eine Absaugöffnung abgeführt. Direkt im Anschluß an die Schmutzaustrittsöffnung des Auflösewalzengehäuses ist eine Schmutzkammer angeordnet, die durch eine Luftleitwand, die in einem geringen Abstand zur Schmutzaustrittsöffnung angeordnet ist, in eine Schmutztrennzone und eine Schmutzabtransportzone unterteilt ist.The thrown away dirt particles are then caught by another air flow and discharged through a suction opening. A dirt chamber is arranged directly after the dirt outlet opening of the opening roller housing and is divided into a dirt separation zone and a dirt removal zone by an air guide wall which is arranged at a short distance from the dirt outlet opening.

Durch die DE 43 10 810 A1 ist weiter eine OE-Rotorspinnvorrichtung mit einer unterhalb der Auflösewalze angeordneten Schmutzkammer bekannt, die zwei getrennte Luftströmungssysteme mit jeweils eigenen Ansaugöffnungen aufweist. Ein im Bodenbereich der Schmutzkammer wirksames Luftströmungssystem entsorgt dabei die von der Auflösewalze ausgekämmten Schmutzpartikel, während ein zweites entgegengesetzt wirksames Luftströmungssystem in eine mit der Auflösewalze umlaufende Sogströmung einmündet. Die spezielle Anordnung der Ansaugöffnung führt dabei zu einer mehr oder minder deutlichen Trennung der beiden Strömungssysteme.From DE 43 10 810 A1 an OE rotor spinning device with a dirt chamber arranged below the opening roller is known, which has two separate air flow systems, each with its own suction openings. An air flow system effective in the bottom area of the dirt chamber disposes of the dirt particles combed out by the opening roller, while a second air flow system having an opposite effect opens into a suction flow circulating with the opening roller. The special arrangement of the intake opening leads to a more or less clear separation of the two flow systems.

Des weiteren ist in der nachveröffentlichten DE 43 34 483 eine Offenend-Spinnvorrichtung beschrieben, die ein im Deckelelement der Spinneinheit angeordnetes Auflösewalzengehäuse besitzt, das mit dem Deckelelement verschwenkbar ist. Das Auflösewalzengehäuse weist eine Schmutzaustrittsöffnung auf, der beabstandet gegenüberliegend ein pneumatisch beaufschlagtes Schmutzaufnahmeelement zugeordnet ist. Zwischen der Schmutzaustrittsöffnung und dem Schmutzaufnahmeelement ist ein mit der Umgebungsluft in Verbindung stehender Freiraum vorgesehen. Das Schmutzaufnahmeelement ist lösbar an dem auf einer Schwenkachse gelagerten Deckelelement befestigt und wird beim Öffnen der Spinnvorrichtung gemeinsam mit dem Deckelelement um die Schwenkachse nach unten gekippt.Furthermore, the post-published DE 43 34 483 describes an open-end spinning device which has an opening roller housing which is arranged in the cover element of the spinning unit and which can be pivoted with the cover element. The opening roller housing has a dirt outlet opening, to which a pneumatically actuated dirt-receiving element is assigned at a distance from one another. A free space in connection with the ambient air is provided between the dirt outlet opening and the dirt receiving element. The dirt-receiving element is detachably fastened to the cover element mounted on a pivot axis and, when the spinning device is opened, is tilted downward about the pivot axis together with the cover element.

Die Schmutzabscheidung am Auflösewalzengehäuse einer Rotorspinnmaschine stellt im Hinblick auf eine einwandfreie Verarbeitung von Faserstoffen ein wichtiges Element dar. Wenngleich die Technologie der Schmutzabscheideeinrichtungen relativ einfach erscheint, handelt es sich bei diesen Einrichtungen doch um sehr diffizile, empfindlich auf Veränderungen reagierende Vorrichtungen. Bereits kleine Modifikationen im Bereich der Schmutzaustrittsöffnungen können die Strömungsverhältnisse nachhaltig verändern und haben damit einen erheblichen Einfluß auf die erzielbaren Spinnergebnisse.The dirt separation on the opening roller housing of a rotor spinning machine is an important element with regard to a perfect processing of fibrous materials. Although the technology of the dirt separation devices seems relatively simple, these devices are very difficult devices that are sensitive to changes. Even small modifications in the area of the dirt outlet openings can permanently change the flow conditions and thus have a considerable influence on the achievable spinning results.

Ausgehend von Offenend-Spinnvorrichtungen der vorstehend beschriebenen Gattung liegt der Erfindung die Aufgabe zugrunde, eine pneumatische Schmutzentsorgungseinrichtung zu schaffen, die universell einsetzbar ist.Starting from open-end spinning devices of the type described above, the invention has for its object to provide a pneumatic dirt disposal device that can be used universally.

Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung gelöst, wie sie im Anspruch 1 beschrieben ist.This object is achieved according to the invention by a device as described in claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.

Die erfindungsgemäße Ausgestaltung der pneumatischen Schmutzabsaugeinrichtung hat unter anderem den Vorteil, daß eine nachträgliche Installation der Einrichtung auch an solchen Rotorspinnmaschinen möglich ist, die ursprünglich für eine mechanische Schmutzentsorgung konzipiert waren. Konstruktive Änderungen im Bereich der Spinnstellen sind dazu nicht notwendig. Das heißt, die neue Schmutzabsaugeinrichtung ermöglicht es, eine Rotorspinnmaschine wahlweise mit einer mechanischen oder einer pneumatischen Schmutzentsorgungseinrichtung auszustatten, wobei die getroffene Wahl zu einem späteren Zeitpunkt gegebenenfalls korrigiert werden kann. Ein vorhandenes mechanisches Schmutzentsorgungssystem kann beispielsweise problemlos durch die erfindungsgemäße pneumatische Schmutzabsaugeinrichtung ersetzt werden.
Die spezielle Ausbildung der erfindungsgemäßen Schmutzabsaugeinrichtung sowie die Art ihrer Anbringung an den Spinneinheiten gewährleisten dabei, daß sämtliche Funktionen der Spinneinheiten, inbesondere das Öffnen des Verdecks zum Reinigen der Spinnstelle in keiner Weise beeinträchtigt werden.The inventive design of the pneumatic dirt suction device has the advantage, among other things, that subsequent installation of the device is also possible on those rotor spinning machines which were originally designed for mechanical dirt disposal. Design changes in the area of the spinning stations are not necessary for this. This means that the new dirt suction device makes it possible to equip a rotor spinning machine with either a mechanical or a pneumatic dirt disposal device, it being possible for the choice made to be corrected at a later point in time. An existing mechanical dirt disposal system can, for example, be carried out without problems the pneumatic dirt suction device according to the invention can be replaced.
The special design of the dirt suction device according to the invention and the way in which it is attached to the spinning units ensure that all the functions of the spinning units, in particular the opening of the top for cleaning the spinning station, are in no way impaired.

In bevorzugter Ausgestaltung besteht die jeweils unterhalb des Schwenkgehäuses der Rotorspinneinheiten angeordnete pneumatische Schmutzabsaugeinrichtung im wesentlichen aus einem Schmutzaufnahmetrichter, der über einen rückwärtigen Absaugstutzen direkt oder indirekt an einen unterdruckbeaufschlagten, maschinenlangen Schmutzkanal angeschlossen ist. Der Schmutzaufnahmetrichter weist eine querverlaufende Anschlußleiste mit Bohrungen auf, über die der Aufnahmetrichter an einer an den Spinneinheiten angeordneten Stützschiene festlegbar ist. An diesen Stützschienen sind gegebenenfalls auch die Leitkanalteile einer mechanischen Schmutzentsorgungseinrichtung befestigt.In a preferred embodiment, the pneumatic dirt suction device arranged below the swivel housing of the rotor spinning units essentially consists of a dirt hopper, which is connected via a rear suction nozzle directly or indirectly to a machine-length dirt channel that is pressurized with vacuum. The dirt holding funnel has a transverse connecting strip with bores, via which the holding funnel can be fixed to a support rail arranged on the spinning units. If necessary, the guide duct parts of a mechanical dirt disposal device are also fastened to these support rails.

In vorteilhafter Ausführungsform ist außerdem vorgesehen, daß der Schmutzaufnahmetrichter als asymmetrisches Spritzgußteil, vorzugsweise aus Kunststoff, ausgebildet ist. Ein derartig gestaltetes Bauteil kann einerseits leicht auf die konstruktiven Gegebenheiten vorhandener OE-Spinnmaschinen angepaßt werden, andererseits sind derartige Spritzgußteile, was bei der Vielzahl der Spinnstellen solcher Maschinen ebenfalls vorteilhaft ist, kostengünstig zu fertigen.In an advantageous embodiment it is also provided that the dirt holding funnel is designed as an asymmetrical injection molded part, preferably made of plastic. Such a component can on the one hand be easily adapted to the structural conditions of existing OE spinning machines, and on the other hand such injection molded parts, which is also advantageous given the large number of spinning stations of such machines, can be manufactured inexpensively.

Der rückwärtige Absaugstutzen des Schmutzaufnabmetrichters ist in bevorzugter Ausführung dicht unterhalb der Stützschiene der Rotorspinneinheiten nach hinten geführt und über eine Leitung, beispielsweise einen Spiralschlauch etc. an den unterdruckbeaufschlagten Schmutzkanal angeschlossen.In a preferred embodiment, the rear suction connection of the dirt collecting funnel is guided to the rear just below the support rail of the rotor spinning units and connected to the dirt duct under pressure via a line, for example a spiral hose, etc.

In weiterer Ausgestaltung der Erfindung ist der Schmutzkanal als maschinenlange Saugtraverse ausgebildet, die in der Maschinenlängsachse der Spinnmaschine, zum Beispiel unterhalb eines Kanals für die Energiezuführung angeordnet ist. Der Schmutzkanal ist dabei in bevorzugter Ausführung maschinenendseitig an eine spinnereieigene Absaugeinrichtung angeschlossen, die unter anderem eine Filtereinrichtung und eine Unterdruckquelle aufweist.In a further embodiment of the invention, the dirt channel is designed as a machine-long suction traverse, which is arranged in the machine longitudinal axis of the spinning machine, for example below a channel for the energy supply. In a preferred embodiment, the dirt channel is connected on the machine end to a spinning device's own suction device, which has, among other things, a filter device and a vacuum source.

Weitere Einzelheiten der Erfindung sind einem nachfolgend anhand der Zeichnungen dargestellten Ausführungsbeispiel entnehmbar. Es zeigt:

  • Fig. 1 eine Zwischeneinheit einer OE-Rotorspinnmaschine mit einem Schmutzkanal sowie einer schematisch dargestellten spinnereieigenen Absaugeinrichtung,
  • Fig. 2 perspektivisch eine Rotorspinneinheit mit einem Schmutzaufnahmetrichter unterhalb des Schwenkgehäuses,
  • Fig. 3 eine Seitenansicht einer mit der erfindungsgemäßen pneumatischen Schmutzabsaugeinrichtung ausgestatteten Rotorspinneinheit,
  • Fig. 4 eine Draufsicht auf einen Schmutzaufnahmetrichter.
Further details of the invention can be found in an exemplary embodiment illustrated below with reference to the drawings. It shows:
  • 1 shows an intermediate unit of an OE rotor spinning machine with a dirt channel and a schematically illustrated spinning device suction device,
  • 2 is a perspective view of a rotor spinning unit with a dirt holding funnel below the swivel housing,
  • 3 shows a side view of a rotor spinning unit equipped with the pneumatic dirt suction device according to the invention,
  • Fig. 4 is a plan view of a dirt hopper.

Die Fig. 1 zeigt einen Zwischeneinheit 2 einer Offenend-Rotorspinnmaschine 1.
Derartige Rotorspinnmaschinen weisen endseitig jeweils eine (nicht dargestellte) Antriebseinheit sowie eine (ebenfalls nicht dargestellte) Endeinheit sowie bis zu zwölf der dargestellten Zwischeneinheiten 2 auf. Jede dieser Zwischeneinheiten 2 besitzt, wie dargestellt, vierundzwanzig Arbeitsstellen 3 (zwölf auf jeder Seite). Die Arbeitsstellen 3 verfügen jeweils über eine OE-Rotorspinneinheit 4 sowie eine Spuleinrichtung 5.1 shows an intermediate unit 2 of an open-end rotor spinning machine 1.
Such rotor spinning machines each have a drive unit (not shown) and an end unit (also not shown) and up to twelve of the intermediate units 2 shown. As shown, each of these intermediate units 2 has twenty-four workplaces 3 (twelve on each side). The work stations 3 each have an OE rotor spinning unit 4 and a winding device 5.

Wie in Fig. 1 weiter dargestellt weist jede Zwischeneinheit 2 einen Saugkanal 6 auf, über den beispielsweise die Rotorgehäuse 20 der Rotorspinneinheiten 4 mit Unterdruck beaufschlagt werden. Unterhalb des Saugkanales 6 ist ein Elektronikkanal 7 sowie ein Schmutzkanal 8 angeordnet. Der Schmutzkanal 8, der als maschinenlange Saugtraverse ausgebildet ist, ist an eine spinnereieigene Absaugeinrichtung 9 angeschlossen, die unter anderem eine Unterdruckquelle 10, ein Filterelement 11 sowie eine Schmutzentsorgung 12 besitzt. An den Schmutzkanal 8 sind, wie Fig. 1 gestrichelt angedeutet, die pneumatischen Schmutzabsaugeinrichtungen 13 der Rotorspinneinheiten 4 angeschlossen.As further shown in FIG. 1, each intermediate unit 2 has a suction channel 6, via which, for example, the rotor housing 20 of the rotor spinning unit 4 is subjected to a vacuum. An electronics duct 7 and a dirt duct 8 are arranged below the suction duct 6. The dirt channel 8, which is designed as a machine-long suction traverse, is connected to a spinning suction device 9, which has, among other things, a vacuum source 10, a filter element 11 and a dirt disposal 12. As indicated by dashed lines in FIG. 1, the pneumatic dirt suction devices 13 of the rotor spinning units 4 are connected to the dirt channel 8.

Die Rotorspinneinheiten 4 sind in den Fig. 2 beziehungsweise 3 näher dargestellt.
Auf einer Stützscheibenlagerung 15 ist, wie bekannt, mit seinem Rotorschaft 16 ein Spinnrotor 17 gelagert. Zur Aufnahme axialer Kräfte ist außerdem ein Axiallager 18 vorgesehen. Der über einen Tangetialriemen 19 angetriebene Spinnrotor 17 läuft mit hoher Drehzahl im Rotorgehäuse 20 um, das über eine Verbindungsleitung 21 an den Saugkanal 6 angeschlossen ist. Das Rotorgehäuse 20 ist dabei nach vorne durch eine Faserkanalplatte 22 verschlossen, die an einem schwenkbar angeordneten Verdeck 23 befestigt ist. Mittig in einem Fortsatz 24 der Faserkanalplatte 22 ist eine Fadenabzugsdüse 25 angeordnet. Außerdem mündet im Fortsatz 24 ein zweiteiliger Faserleitkanal 26, der die Faserbandauflöseeinrichtung 27 mit dem Inneren des Spinnrotors 17 verbindet.
Das Verdeck 23 kann nach Lösen eines Riegels 28 um die Schwenkachse 29 in Richtung S verschwenkt und dabei in eine erste Reinigungsstellung beziehungsweise eine zweite Wartungsstellung gekippt werden.The rotor spinning units 4 are shown in more detail in FIGS. 2 and 3.
As is known, a spinning rotor 17 is mounted on a support disk bearing 15 with its rotor shaft 16. An axial bearing 18 is also provided to absorb axial forces. The spinning rotor 17, which is driven by a tangential belt 19, rotates at high speed in the rotor housing 20, which is connected to the suction channel 6 via a connecting line 21. The rotor housing 20 is closed at the front by a fiber channel plate 22 which is fastened to a pivotable top 23. A thread draw-off nozzle 25 is arranged in the center of an extension 24 of the fiber channel plate 22. In addition, a two-part fiber guide channel 26 opens into the extension 24, which connects the sliver opening device 27 to the interior of the spinning rotor 17.
The top 23 can be pivoted about the pivot axis 29 in the direction S after loosening a bolt 28 and thereby tilted into a first cleaning position or a second maintenance position.

Die Faserbandauflöseeinrichtung 27 besteht im wesentlichen aus einer in einem Schwenkgehäuse 30 umlaufenden Auflösewalze 31, einem Faserbandeinzugszylinder 32 sowie einer Faserbandeinzugsmulde 33. Das Faserband 34 wird der Faserbandauflöseeinrichtung 27 über einen Verdichter 35 zugeführt. Das die Auflösewalze 31 umgebende Schwenkgehäuse 30 ist teilweise offen, das heißt, es weist eine nach unten gerichtete Schmutzaustrittsöffnung 36 auf.The sliver opening device 27 consists essentially of a opening roller 31 rotating in a swivel housing 30, a sliver feed cylinder 32 and a Sliver feed trough 33. The sliver 34 is fed to the sliver opening device 27 via a compressor 35. The swivel housing 30 surrounding the opening roller 31 is partially open, that is to say it has a dirt outlet opening 36 directed downward.

Beabstandet unterhalb des Schwenkgehäuses 30 ist eine pneumatische Schmutzabsaugeinrichtung 13 angeordnet, die an einer Stützschiene 37 der Rotorspinneinheit 4 festlegbar ist. Die Schmutzabsaugeinrichtung 13 weist einen asymmetrisch geformten Schmutzaufnahmetrichter 38 auf, der über einen rückwärtigen Absaugstutzen 39 an den unterdruckbeaufschlagten Schmutzkanal 8 der Rotorspinnmaschine 1 angeschlossen ist.A pneumatic dirt suction device 13 is arranged at a distance below the swivel housing 30 and can be fixed on a support rail 37 of the rotor spinning unit 4. The dirt suction device 13 has an asymmetrically shaped dirt holding funnel 38, which is connected via a rear suction nozzle 39 to the dirt channel 8 of the rotor spinning machine 1 which is under pressure.

Wie insbesondere aus Fig. 4 ersichtlich, ist der Schmutzaufnahmetrichter 38 sowohl im Bereich seines Aufnahmegefäßes als auch in seinem hinteren Anschlußbereich asymmetrisch aufgebaut. Der Schmutzaufnahmetrichter weist außerdem im oberen Bereich eine Anschlußleiste 40 mit Befestigungsbohrungen 41 auf. Über die Befestigungsbohrungen 41 kann der Schmutzaufnahmetrichter 38 an der Stützschiene 37 der Rotorspinneinheiten 4 festgelegt werden.As can be seen in particular from FIG. 4, the dirt holding funnel 38 is constructed asymmetrically both in the area of its receptacle and in its rear connection area. The dirt hopper also has a terminal block 40 with mounting holes 41 in the upper region. The dirt holding funnel 38 can be fixed on the support rail 37 of the rotor spinning units 4 via the fastening bores 41.

Zwischen der Schmutzaustrittsöffnung 36 des Schwenkgehäuses 30 und dem Schmutzaufnahmetrichter 38 entsteht im Einbauzustand der pneumatischen Schmutzabsaugung ein frei zugänglicher Raum, der den ungestörten Zutritt einer Ansaugströmung in das Auflösewalzengehäuse 30 ermöglicht. Die Ansaugströmung wird dabei durch die in Absaugstutzen 39 anstehende Saugströmung in keiner Weise negativ beeinflußt.In the installed state of the pneumatic dirt suction device, a freely accessible space is created between the dirt outlet opening 36 of the swivel housing 30 and the dirt holding funnel 38, which enables the undisturbed access of a suction flow into the opening roller housing 30. The suction flow is in no way negatively influenced by the suction flow present in suction nozzle 39.

Claims (9)

Offenend-Spinnmaschine mit einer Vielzahl nebeneinander angeordneter Arbeitsstellen, die einen auf einer Stützscheibenlagerung abgestützten, in einem Unterdruck beaufschlagten Rotorgehäuse umlaufenden Spinnrotor sowie eine Faserbandauflöseeinrichtung mit einer in einem Schwenkgehäuse rotierenden Aufllösewalze aufweisen, wobei das Rotorgehäuse nach vorne durch eine an einem schwenkbaren Verdeck angeordnete Faserkanalplatte verschließbar ist und unterhalb einer im Schwenkgehäuse angeordneten Schmutzaustrittsöffnung eine Schmutzentsorgungseinrichtung befestigt ist,
dadurch gekennzeichnet, - daß eine pneumatische Schmutzabsaugeinrichtung (13) einen Schmutzaufnahmetrichter (38) aufweist, der beabstandet zur Schmutzaustrittsöffnung (36) des Schwenkgehäuses (30) angeordnet und über einen Absaugstutzen (39) an einen maschinenlangen Schmutzkanal (8) angeschlossen ist, wobei die Schmutzabsaugeinrichtung (13) so ausgebildet und an der Rotorspinneinheit (4) festgelegt ist, daß das Öffnen des Verdecks (23) der Rotorspinneinheit (4) in keiner Weise behindert wird. Open-end spinning machine with a large number of workstations arranged next to one another, which have a spinning rotor supported on a support disk bearing and a rotor housing loaded in a vacuum, and a fiber sliver opening device with a opening roller rotating in a swivel housing, the rotor housing being closable to the front by a fiber channel plate arranged on a swiveling roof and a dirt disposal device is fastened below a dirt outlet opening arranged in the swivel housing,
characterized, - That a pneumatic dirt suction device (13) has a dirt holding funnel (38) which is spaced from the dirt outlet opening (36) of the swivel housing (30) and is connected via a suction nozzle (39) to a machine-long dirt channel (8), the dirt suction device (13 ) is so designed and fixed to the rotor spinning unit (4) that the opening of the top (23) of the rotor spinning unit (4) is not hindered in any way. Offenend-Spinnmaschine nach Anspruch 1, dadurch gekennzeichnet, daß an der Rotorspinneinheit (4) eine Stützleiste (37) angeordnet ist, an der, durch geeignete Befestigungsmittel, entweder ein Kanalteil einer mechanischen Schmutzentsorgungseinrichtung oder der Schmutzaufnahmetrichter (38) einer pneumatischen Schmutzabsaugeinrichtung (13) festlegbar ist.Open-end spinning machine according to claim 1, characterized in that a support bar (37) is arranged on the rotor spinning unit (4), on which, by means of suitable fastening means, either a channel part of a mechanical dirt disposal device or the dirt holding funnel (38) of a pneumatic dirt suction device (13) is definable. Offenend-Spinnmaschine nach Anspruch 2, dadurch gekennzeichnet, daß die Stützleiste (37) Befestigungsbohrungen (42) aufweist, in denen zum Beispiel Schraubenbolzen arretierbar sind.Open-end spinning machine according to claim 2, characterized in that the support bar (37) Has mounting holes (42) in which, for example, bolts can be locked. Offenend-Spinnmaschine nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Schmutzaufnahmetrichter (38) asymmetrisch aufgebaut ist, einen rückwärtigen, außermittig angeordneten Absaugstutzen (39) sowie eine oberhalb des Trichters angeordnete Befestigungsleiste (40) aufweist.Open-end spinning machine according to Claims 1 and 2, characterized in that the dirt holding funnel (38) is constructed asymmetrically, has a rear, eccentrically arranged suction nozzle (39) and a fastening strip (40) arranged above the funnel. Offenend-Spinnmaschine nach Anspruch 4, dadurch gekennzeichnet, daß der Schmutzaufnahmetrichter (38) als asymmetrisches Spritzgußteil ausgelegt ist.Open-end spinning machine according to claim 4, characterized in that the dirt holding funnel (38) is designed as an asymmetrical injection molded part. Offenend-Spinnmaschine nach Anspruch 4 und 5, dadurch gekennzeichnet, daß der Schmutzaufnahmetrichter (38) aus Kunststoff gefertigt ist.Open-end spinning machine according to claim 4 and 5, characterized in that the dirt holding funnel (38) is made of plastic. Offenend-Spinnmaschine nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß der Absaugstutzen (39) die Stützschiene (37) unterfaßt und über eine flexible Leitung mit dem unterdruckbeaufschlagten Schmutzkanal (8) der Offenend-Spinnmaschine (1) verbunden ist.Open-end spinning machine according to one or more of the preceding claims, characterized in that the suction nozzle (39) grips the support rail (37) and is connected via a flexible line to the dirt channel (8) of the open-end spinning machine (1) which is pressurized. Offenend-Spinnmaschine nach Anspruch 7, dadurch gekennzeichnet, daß die flexible Leitung als Spiralschlauch ausgebildet ist.Open-end spinning machine according to claim 7, characterized in that the flexible line is designed as a spiral tube. Offenend-Spinnmaschine nach Anspruch 7, dadurch gekennzeichnet, daß der Schmutzkanal (8) als maschinenlange Saugtraverse ausgebildet ist, die maschinenendseitig mit einer spinnereieigenen Absaugeinrichtung (9) verbunden ist.Open-end spinning machine according to claim 7, characterized in that the dirt channel (8) is designed as a machine-long suction crossmember which is connected on the machine end to a spinning device's own suction device (9).
EP95114842A 1994-12-16 1995-09-21 Open-end spinning machine Expired - Lifetime EP0717132B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4444851A DE4444851A1 (en) 1994-12-16 1994-12-16 Open end spinning machine
DE4444851 1994-12-16

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EP0717132A2 true EP0717132A2 (en) 1996-06-19
EP0717132A3 EP0717132A3 (en) 1996-11-13
EP0717132B1 EP0717132B1 (en) 1999-12-01

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EP95114842A Expired - Lifetime EP0717132B1 (en) 1994-12-16 1995-09-21 Open-end spinning machine

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US (1) US5647196A (en)
EP (1) EP0717132B1 (en)
JP (1) JPH08209465A (en)
DE (2) DE4444851A1 (en)

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DE19709213B4 (en) * 1997-03-06 2005-10-06 Saurer Gmbh & Co. Kg Sliver opening device
DE19838762B4 (en) * 1998-08-26 2009-04-16 Maschinenfabrik Rieter Ag Spinning machine with a variety of spinning stations
DE19910940A1 (en) * 1999-03-12 2000-09-14 Fritz Stahlecker Open-end spinner waste channel cleaner has a scraping cleaning unit at the slide which moves through the channel to detach hard clinging matter from the channel side wall
DE10340657A1 (en) * 2003-09-04 2005-03-31 Saurer Gmbh & Co. Kg Open-end spinning device
DE102012013044A1 (en) * 2012-06-29 2014-01-02 Saurer Germany Gmbh & Co. Kg Adapter for dirt outlet opening of opening cylinder housing of open-end spinning device in rotor spinning machine, has dirt and air guidance wall to removably attach main portion to opening cylinder housing
DE102019110575A1 (en) * 2019-04-24 2020-10-29 Saurer Spinning Solutions Gmbh & Co. Kg Open-end spinning device

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Also Published As

Publication number Publication date
EP0717132A3 (en) 1996-11-13
JPH08209465A (en) 1996-08-13
DE4444851A1 (en) 1996-06-20
DE59507334D1 (en) 2000-01-05
EP0717132B1 (en) 1999-12-01
US5647196A (en) 1997-07-15

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