EP1834024B1 - Circular expander for treating tubular fabric - Google Patents

Circular expander for treating tubular fabric Download PDF

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Publication number
EP1834024B1
EP1834024B1 EP05850169A EP05850169A EP1834024B1 EP 1834024 B1 EP1834024 B1 EP 1834024B1 EP 05850169 A EP05850169 A EP 05850169A EP 05850169 A EP05850169 A EP 05850169A EP 1834024 B1 EP1834024 B1 EP 1834024B1
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EP
European Patent Office
Prior art keywords
circular expander
tubular fabric
circular
central carrier
expander according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP05850169A
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German (de)
French (fr)
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EP1834024A1 (en
Inventor
Oliver Hostenkamp
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Lindauer Dornier GmbH
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Lindauer Dornier GmbH
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Publication of EP1834024A1 publication Critical patent/EP1834024A1/en
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Publication of EP1834024B1 publication Critical patent/EP1834024B1/en
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    • 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
    • D06C5/00—Shaping or stretching of tubular fabrics upon cores or internal frames

Definitions

  • the invention relates to a Rundbreithalter for treating textile tubular fabric according to the preamble of claim 1.
  • Such a Rundbreithalter is from the EP 1 308 549 A2 known.
  • round spacers are described with magnetic bearings for the central support, which are optionally equipped with permanent magnets and / or with electromagnets, which allow for an adaptable to weight and load of the Rundbreithalters storage and thereby form a sufficient gap.
  • Both the at least one tubular goods inlet part and the at least one tubular goods outlet part are first equipped with magnets parts which are embraced to form a goods gap of at least a second equipped with magnets tubular goods inlet part and tubular goods outlet part, and wherein the magnets of the parts have the same polarity. By the same polarity of the oppositely arranged magnets arise repulsive forces, which cause the formation of the goods gap.
  • a hovering Rundbreithalter known as part of a drying system for textile tubular fabric. It describes round spacers in which roller bearings are provided for the expansion of the tubular goods both at the hose goods inlet side and at the tube outlet side.
  • the roller bearings each have a support roller pair and a pair of fixing rollers, between which the tubular fabric is guided.
  • the invention is therefore based on the object to develop a known from the prior art Rundbreithalterech such that an easy-to-set, continuous flow of goods is made possible without affecting the quality of the continuous tubular fabric.
  • the tubular fabric inlet at the lower end of the vertically arranged Rundbreithalters is designed as a magnetic bearing and the opposite, upper Schlauchware outlet as a roller bearing.
  • the first product gap is kept constant by the regulation of the magnetic force to the electromagnet.
  • the electromagnets are supplied with electrical energy by a suitable controller in such a way that the predetermined first goods gap is established. This eliminates complex mechanical alignment and adjustment.
  • the round spreader is held in suspension by the magnetic forces.
  • the control of the magnetic bearing reacts to changed external influences, such as e.g. changed from above or below, and regulates the supply of electrical energy to the magnet accordingly.
  • the roller bearing at the other end of the Rundbreithalters ensures adequate guidance during operation and stabilizes the spreader against external influences such as forces caused by irregularities in the goods voltage and / or goods structure.
  • the roller bearing can be positioned. Due to the optimal positioning of the overhead roller bearing with respect to the arranged underneath, fixed in the magnetic bearing Rundbreithalter the fuser rollers of the roller bearing can be "cleared". In this way, the second goods gap between the fuser rollers and the support rollers is adjustable. As a result, the surface pressure of the goods when passing through the roller bearing is minimized and permanent effects on the quality of the goods are avoided.
  • the roller bearing ensures that the round spacer can be supported against components fixed to the housing.
  • Rundbreithalterech 1 essentially comprises the vertically arranged Rundbreithalter 2 with variable diameter, which is mounted on a central, telescopic support 3 in the bottom arranged tubular inlet 4 and in the above-arranged Schlauchware outlet 5.
  • the tubular product 12 is fed to the round spreader via a feed roller 6, which is arranged centrally underneath the round support unit 1.
  • the tubular fabric inlet 4 consists essentially of the centrally arranged, rotationally symmetrical body 7, which is rigidly connected to the lower end of the central support 3, and separated by the first goods gap 14.1, outer magnetic bearing. 8
  • the tubular goods outlet 5 consists essentially of a, known per se, roller bearing 9, consisting of pairs of support rollers and fixing rollers, between which by raising the Rundbreithalters means of magnetic forces, a second product gap 14.2 is formed through which the tubular fabric is performed.
  • the tubular product 12 is again spread flat over a central, above the Rundbreithalteriser 1 arranged withdrawal roller 10 and removed from the Rundbreithalterech.
  • a known lifting device 11 is mounted at the tubular goods outlet 5 . This is about the roller bearing 9 with the Rundbreithalter 2 in conjunction. By raising and lowering the roller bearing 9, the diameter of the Rundbreithalters 2 can be changed.
  • a known per se, not shown locking device on the central support ensures that the selected diameter of the Rundbreithalters is maintained during the goods management.
  • FIG. 2 shows details of the controlled magnetic bearing in the tubular fabric inlet according to section AA in FIG. 3 ,
  • the magnetic bearing 8 consists essentially of two modules 8.1. Each of these modules 8.1 is equipped with electromagnets 8.2 and distance sensors 8.3. The components of the control loop are interconnected by suitable energy and control lines.
  • a power source 8.5 provides the necessary power supply to all control circuits.
  • the schematically illustrated controller 8.4 receives the signals from the measurement of the distance sensors 8.3 and controls according to the signals, the power supply to the respective electromagnet, so that the predetermined first goods gap 14.1 sets.
  • the modules 8.1 are rigidly connected to the frame-fixed frame parts 13.
  • FIG. 3 shows details of the magnetic bearing in the tubular fabric inlet according to section BB in FIG. 2 ,
  • the rotationally symmetrical body 7 Centrally disposed is the rotationally symmetrical body 7, which is formed in this embodiment as a hollow body. Separated by the first goods gap 14.1 outside, the body 7 embracing, the magnetic bearing 8 is arranged.
  • the magnetic bearing 8 consists essentially of the modules 8.1. Each of the modules 8.1 is equipped with two control loops. Each control loop consists of an electromagnet 8.2, a Distance sensor 8.3 and a controller, which is not shown here.
  • the modules 8.1 are rigidly connected to the frame-fixed frame parts 13.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Brushes (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

The aim of the invention is to provide a circular expander ( 1 ) that allows an easy-to-adjust, continuous passage of textiles while not impairing the quality of the passing tubular fabric ( 12 ). For this purpose, a magnetic bearing ( 8 ) is provided optionally at the inlet or outlet of the circular expander and a conventional roller bearing ( 9 ) is provided at the opposite end of the circular expander.

Description

Die Erfindung betrifft einen Rundbreithalter zum Behandeln textiler Schlauchware nach dem Oberbegriff des Anspruchs 1.The invention relates to a Rundbreithalter for treating textile tubular fabric according to the preamble of claim 1.

Ein derartiger Rundbreithalter ist aus der EP 1 308 549 A2 bekannt. Darin sind Rundbreithalter mit Magnetlagerungen für den zentralen Träger beschrieben, die wahlweise mit Permanentmagneten und/oder mit Elektromagneten bestückt sind, die eine an Gewicht und Belastung des Rundbreithalters anpassbare Lagerung ermöglichen und dabei einen hinreichenden Warenspalt ausbilden. Sowohl das wenigstens eine Schlauchware-Einlaufteil als auch das wenigstens eine Schlauchware-Auslaufteil sind dabei erste mit Magneten bestückte Teile, die unter Ausbildung eines Warenspaltes von wenigstens einem zweiten mit Magneten bestückten Schlauchware Einlaufteil und Schlauchware-Auslaufteil umgriffen sind, und wobei die Magnete der Teile gleiche Polarität aufweisen. Durch die gleiche Polarität der gegenüberliegend angeordneten Magnete entstehen abstoßende Kräfte, welche die Ausbildung des Warenspaltes bewirken. Bekannt sind auch aus DE 103 22 231 und DE 103 46 059 Rundbreithalter mit vergleichbarem Aufbau.Such a Rundbreithalter is from the EP 1 308 549 A2 known. Therein round spacers are described with magnetic bearings for the central support, which are optionally equipped with permanent magnets and / or with electromagnets, which allow for an adaptable to weight and load of the Rundbreithalters storage and thereby form a sufficient gap. Both the at least one tubular goods inlet part and the at least one tubular goods outlet part are first equipped with magnets parts which are embraced to form a goods gap of at least a second equipped with magnets tubular goods inlet part and tubular goods outlet part, and wherein the magnets of the parts have the same polarity. By the same polarity of the oppositely arranged magnets arise repulsive forces, which cause the formation of the goods gap. Are also known DE 103 22 231 and DE 103 46 059 Round spacers with comparable structure.

Die EP 0 473 231 A1 , die DE 42 10 741 A1 sowie die US 5 844 339 und US 4 686 404 beschreiben aktive Magnetlagerungen mit Abstandsensoren zur Erzeugung einer stabilen Lage eines schwebend gehaltenen Körpers. Keine dieser Druckschriften hat jedoch einen Bezug auf Rundbreithalter und deren Besonderheiten.The EP 0 473 231 A1 , the DE 42 10 741 A1 as well as the US 5,844,339 and US 4,686,404 describe active magnetic bearings with distance sensors to create a stable position of a suspended body. However, none of these publications has a reference to Rundbreithalter and their peculiarities.

Aus der DE 37 32 754 C1 ist ein schwebend gehaltener Rundbreithalter als Teil einer Trockenanlage für textile Schlauchware bekannt. Darin sind Rundbreithalter beschrieben, bei denen sowohl an der Schlauchwaren-Einlaufseite, als auch der Schlauchwaren-Auslassseite Rollenlagerungen zur Ausbreitung der Schlauchware vorgesehen sind. Die Rollenlagerungen weisen jeweils ein Stützrollenpaar und ein Fixierrollenpaar auf, zwischen denen die Schlauchware geführt ist.From the DE 37 32 754 C1 is a hovering Rundbreithalter known as part of a drying system for textile tubular fabric. It describes round spacers in which roller bearings are provided for the expansion of the tubular goods both at the hose goods inlet side and at the tube outlet side. The roller bearings each have a support roller pair and a pair of fixing rollers, between which the tubular fabric is guided.

Beide vorgenannte Lösungen für Rundbreithalter haben jedoch den Nachteil, dass eine stabile Positionierung des Rundbreithalters in seiner Lagerung nur mit aufwändigen Einstellarbeiten erreicht werden kann. Zudem werden der aufwändig eingestellte Schwebezustand des Rundbreithalters, insbesondere bei magnetischer Lagerung, und der dadurch entstandene Warenspalt durch äußere Einflüsse, z.B. von der durchlaufenden Ware, nachteilig beeinflusst und damit instabil.However, both aforementioned solutions for Rundbreithalter have the disadvantage that a stable positioning of the Rundbreithalters in its storage only with elaborate adjustments can be achieved. In addition, the lavishly suspended state of the Rundbreithalters, especially in magnetic storage, and the resulting product gap by external influences, eg of the passing goods, adversely affected and thus unstable.

Der Erfindung liegt daher die Aufgabe zu Grunde, eine aus dem Stand der Technik bekannte Rundbreithaltereinheit derart weiterzubilden, dass ein einfach einzustellender, kontinuierlicher Warendurchlauf ermöglicht wird, ohne die Qualität der durchlaufenden Schlauchware zu beeinträchtigen.The invention is therefore based on the object to develop a known from the prior art Rundbreithaltereinheit such that an easy-to-set, continuous flow of goods is made possible without affecting the quality of the continuous tubular fabric.

Erfindungsgemäß wird die Aufgabe durch die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.According to the invention the object is achieved by the features stated in the characterizing part of claim 1.

Nach der Erfindung wird der Schlauchware-Einlauf am unteren Ende des vertikal angeordneten Rundbreithalters als Magnetlagerung und der gegenüberliegende, obere Schlauchware-Auslauf als Rollenlagerung ausgeführt.According to the invention, the tubular fabric inlet at the lower end of the vertically arranged Rundbreithalters is designed as a magnetic bearing and the opposite, upper Schlauchware outlet as a roller bearing.

Die anziehenden Magnetkräfte am unten liegenden Schlauchware-Einlauf des Rundbreithalters halten diesen in einer vorgegebenen Position, so dass dort ein gerader erster Warenspalt entsteht, den die Ware nahezu berührungslos und unbeeinträchtigt in ihrer Qualität durchläuft. Die Reibung zwischen Ware und Maschinenteilen wird durch den ungehinderten Einlauf so minimiert, dass qualitätsmindernde Verspannungen und Markierungen in der Ware vermieden werden.The attractive magnetic forces at the bottom of the tubular ware inlet of the round spreader hold it in a predetermined position, so that there arises a straight first nip, which the goods pass almost without contact and unimpaired in their quality. The friction between goods and machine parts is minimized by the unimpeded inlet so that quality-reducing tensions and marks in the goods are avoided.

Der erste Warenspalt wird durch die Regelung der Magnetkraft an den Elektromagneten konstant gehalten. Abhängig von den Signalen aus der Messung der Abstandssensoren werden die Elektromagneten von einem geeigneten Regler so mit elektrischer Energie versorgt, dass sich der vorgegebene erste Warenspalt einstellt. Dadurch entfallen aufwändige mechanische Ausricht- und Einstellarbeiten. Während des Produktionsbetriebs wird der Rundbreithalter durch die Magnetkräfte in der Schwebe gehalten. Die Regelung der Magnetlagerung reagiert auf veränderte äußere Einflüsse, wie z.B. veränderten Warenzug von oben oder unten, und regelt die Zufuhr elektrischer Energie zu den Magneten entsprechend nach.The first product gap is kept constant by the regulation of the magnetic force to the electromagnet. Depending on the signals from the measurement of the distance sensors, the electromagnets are supplied with electrical energy by a suitable controller in such a way that the predetermined first goods gap is established. This eliminates complex mechanical alignment and adjustment. During production, the round spreader is held in suspension by the magnetic forces. The control of the magnetic bearing reacts to changed external influences, such as e.g. changed from above or below, and regulates the supply of electrical energy to the magnet accordingly.

Die Rollenlagerung am anderen Ende des Rundbreithalters sorgt für ausreichende Führung während des laufenden Betriebs und stabilisiert den Breithalter gegen äußere Einflüsse wie z.B. Kräfte, verursacht durch Unregelmäßigkeiten in der Warenspannung und/oder Warenstruktur.The roller bearing at the other end of the Rundbreithalters ensures adequate guidance during operation and stabilizes the spreader against external influences such as forces caused by irregularities in the goods voltage and / or goods structure.

Mit Hilfe der Hubvorrichtung kann die Rollenlagerung positioniert werden. Durch die optimale Positionierung der oben liegenden Rollenlagerung im Bezug auf den darunter angeordneten, in der Magnetlagerung fixierten Rundbreithalter können die Fixierwalzen der Rollenlagerung "freigefahren" werden. Auf diese Weise ist der zweite Warenspalt zwischen den Fixierwalzen und den Stützrollen einstellbar. Dadurch wird die Flächenpressung der Ware beim Durchlaufen der Rollenlagerung minimiert und dauerhafte Einwirkungen auf die Qualität der Ware werden vermieden.With the help of the lifting device, the roller bearing can be positioned. Due to the optimal positioning of the overhead roller bearing with respect to the arranged underneath, fixed in the magnetic bearing Rundbreithalter the fuser rollers of the roller bearing can be "cleared". In this way, the second goods gap between the fuser rollers and the support rollers is adjustable. As a result, the surface pressure of the goods when passing through the roller bearing is minimized and permanent effects on the quality of the goods are avoided.

Bei Ausfall der Magnetkraft, z.B. durch Stromausfall an den Elektromagneten, sorgt die Rollenlagerung dafür, dass sich der Rundbreithalter gegen gehäusefeste Bauteile abstützen kann.In case of failure of the magnetic force, e.g. Due to a power failure at the electromagnet, the roller bearing ensures that the round spacer can be supported against components fixed to the housing.

Weitere ausgestaltende Merkmale und Vorteile, der Erfindung gehen aus den abhängigen Patentansprüchen, der Erfindungsbeschreibung und den Zeichnungsfiguren hervor.Further ausgestaltende features and advantages of the invention will become apparent from the dependent claims, the description of the invention and the drawing figures.

Die Erfindung wird nachstehend anhand eines Ausführungsbeispiels näher erläutert.The invention will be explained in more detail below with reference to an embodiment.

In den Zeichnungen zeigen:

Figur 1
eine Rundbreithaltereinheit, die eingangsseitig, unten mit Magnetlagerung und ausgangsseitig, oben mit Rollenlagerung ausgeführt ist,
Figur 2
die Einzelheit der Magnetlagerung gemäß Schnitt A-A in Figur 3,
Figur 3
die Ansicht der Magnetlagerung gemäß Schnitt B-B in Figur 2.
In the drawings show:
FIG. 1
a Rundbreithaltereinheit, the input side, bottom with magnetic bearing and the output side, running at the top with roller bearing,
FIG. 2
the detail of the magnetic bearing according to section AA in FIG. 3 .
FIG. 3
the view of the magnetic bearing according to section BB in FIG. 2 ,

Die In Figur 1 dargestellte Rundbreithaltereinheit 1 umfasst im wesentlichen den vertikal angeordneten Rundbreithalter 2 mit veränderlichem Durchmesser, welcher über einen zentralen, teleskopartigen Träger 3 im unten angeordneten Schlauchware-Einlauf 4 und im oben angeordneten Schlauchware-Auslauf 5 gelagert ist.In the FIG. 1 shown Rundbreithaltereinheit 1 essentially comprises the vertically arranged Rundbreithalter 2 with variable diameter, which is mounted on a central, telescopic support 3 in the bottom arranged tubular inlet 4 and in the above-arranged Schlauchware outlet 5.

Die schlauchförmige Ware 12 wird über eine mittig, unterhalb der Rundbreithaltereinheit 1 angeordnete Einlaufwalze 6 dem Rundbreithalter zugeführt.The tubular product 12 is fed to the round spreader via a feed roller 6, which is arranged centrally underneath the round support unit 1.

Der Schlauchware-Einlauf 4 besteht im wesentlichen aus dem zentral angeordneten, rotationssymmetrischen Körper 7, der starr verbunden ist mit dem unteren Ende des zentralen Trägers 3, und der durch den ersten Warenspalt 14.1 getrennten, außen liegenden Magnetlagerung 8.The tubular fabric inlet 4 consists essentially of the centrally arranged, rotationally symmetrical body 7, which is rigidly connected to the lower end of the central support 3, and separated by the first goods gap 14.1, outer magnetic bearing. 8

Der Schlauchware-Auslauf 5 besteht im wesentlichen aus einer, an sich bekannten, Rollenlagerung 9, bestehend aus Paaren von Stützrollen und Fixierwalzen, zwischen denen durch das Anheben des Rundbreithalters mittels der Magnetkräfte ein zweiter Warenspalt 14.2 entsteht, durch den die Schlauchware durchgeführt wird.The tubular goods outlet 5 consists essentially of a, known per se, roller bearing 9, consisting of pairs of support rollers and fixing rollers, between which by raising the Rundbreithalters means of magnetic forces, a second product gap 14.2 is formed through which the tubular fabric is performed.

Die schlauchförmige Ware 12 wird über eine mittig, oberhalb der Rundbreithaltereinheit 1 angeordnete Abzugswalze 10 wieder flachgebreitet und aus der Rundbreithaltereinheit abgeführt.The tubular product 12 is again spread flat over a central, above the Rundbreithaltereinheit 1 arranged withdrawal roller 10 and removed from the Rundbreithaltereinheit.

Am Schlauchware-Auslauf 5 ist eine an sich bekannte Hubvorrichtung 11 montiert. Diese steht über die Rollenlagerung 9 mit dem Rundbreithalter 2 in Verbindung. Durch Anheben und Absenken der Rollenlagerung 9 kann der Durchmesser des Rundbreithalters 2 verändert werden.At the tubular goods outlet 5 a known lifting device 11 is mounted. This is about the roller bearing 9 with the Rundbreithalter 2 in conjunction. By raising and lowering the roller bearing 9, the diameter of the Rundbreithalters 2 can be changed.

Eine an sich bekannte, nicht dargestellte Arretiervorrichtung am zentralen Träger sorgt dafür, dass der gewählte Durchmesser des Rundbreithalters während der Warenführung erhalten bleibt.A known per se, not shown locking device on the central support ensures that the selected diameter of the Rundbreithalters is maintained during the goods management.

Figur 2 zeigt Einzelheiten der geregelten Magnetlagerung im Schlauchware Einlauf gemäß Schnitt A-A in Figur 3. FIG. 2 shows details of the controlled magnetic bearing in the tubular fabric inlet according to section AA in FIG. 3 ,

Mittig angeordnet ist der rotationssymmetrische Körper 7, welcher starr verbunden ist mit dem unteren Ende des zentralen, teleskopartigen Trägers 3 des Rundbreithalters. Durch den ersten Warenspalt 14.1 getrennt ist außen die Magnetlagerung 8 angeordnet. Die Magnetlagerung 8 besteht im wesentlichen aus zwei Modulen 8.1. Jedes dieser Module 8.1 ist mit Elektromagneten 8.2 und Abstandssensoren 8.3 ausgestattet. Die Komponenten des Regelkreises sind durch geeignete Energie- und Steuerleitungen miteinander verbunden. Eine Stromquelle 8.5 sorgt für die notwendige Stromzufuhr zu allen Regelkreisen. Der schematisch dargestellte Regler 8.4 nimmt die Signale aus der Messung der Abstandssensoren 8.3 auf und regelt entsprechend den Signalen die Stromzufuhr zu dem betreffenden Elektromagneten, so dass sich der vorgegebene erste Warenspalt 14.1 einstellt. Die Module 8.1 sind starr mit den gestellfesten Rahmenteilen 13 verbunden.Arranged centrally is the rotationally symmetrical body 7, which is rigidly connected to the lower end of the central, telescopic support 3 of the Rundbreithalters. Separated by the first goods gap 14.1 outside the magnetic bearing 8 is arranged. The magnetic bearing 8 consists essentially of two modules 8.1. Each of these modules 8.1 is equipped with electromagnets 8.2 and distance sensors 8.3. The components of the control loop are interconnected by suitable energy and control lines. A power source 8.5 provides the necessary power supply to all control circuits. The schematically illustrated controller 8.4 receives the signals from the measurement of the distance sensors 8.3 and controls according to the signals, the power supply to the respective electromagnet, so that the predetermined first goods gap 14.1 sets. The modules 8.1 are rigidly connected to the frame-fixed frame parts 13.

Figur 3 zeigt Einzelheiten der Magnetlagerung im Schlauchware-Einlauf gemäß Schnitt B-B in Figur 2. FIG. 3 shows details of the magnetic bearing in the tubular fabric inlet according to section BB in FIG. 2 ,

Zentral angeordnet ist der rotationssymmetrische Körper 7, welcher in dieser Ausführung als Hohlkörper ausgebildet ist. Durch den ersten Warenspalt 14.1 getrennt ist außen, den Körper 7 umgreifend, die Magnetlagerung 8 angeordnet. Die Magnetlagerung 8 besteht im wesentlichen aus den Modulen 8.1. Jedes der Module 8.1 ist mit zwei Regelkreisen ausgestattet. Jeder Regelkreis besteht aus einem Elektromagneten 8.2, einem Abstandssensor 8.3 und einem Regler, der hier nicht dargestellt ist. Die Module 8.1 sind starr mit den gestellfesten Rahmenteilen 13 verbunden.Centrally disposed is the rotationally symmetrical body 7, which is formed in this embodiment as a hollow body. Separated by the first goods gap 14.1 outside, the body 7 embracing, the magnetic bearing 8 is arranged. The magnetic bearing 8 consists essentially of the modules 8.1. Each of the modules 8.1 is equipped with two control loops. Each control loop consists of an electromagnet 8.2, a Distance sensor 8.3 and a controller, which is not shown here. The modules 8.1 are rigidly connected to the frame-fixed frame parts 13.

Die strukturelle Ausbildung des Rundbreithalters 2 ist bekannt, deshalb wird hier nicht im Detail darauf eingegangen.The structural design of the Rundbreithalters 2 is known, so will not be discussed in detail here.

Claims (8)

  1. Circular expander for treating textile tubular fabric (12) comprising
    a telescopically slidably displaceable central carrier (3), on which outwardly spreadable supports are articulated, whereby the supports are connected with elements for the longitudinal guidance of the tubular fabric (12),
    a first device, embodied at the one end of the central carrier (3) as a tubular fabric entry (4), for delivering the tubular fabric (12),
    a second device, embodied at the other end of the central carrier (3) as a tubular fabric exit (5), for discharging the tubular fabric (12),
    a lifting apparatus (11), engaging on the second device, for adjustingly setting the size of the circular spread, and
    an apparatus, operatively connected with the central carrier (3), for locking the adjusted set size of the circular spread,
    whereby the first device consists of a preferably rotationally symmetrical body (7) arranged at the lower free end of the central carrier (3) and consisting at least partially of a ferromagnetic material, as well as of modules (8.1) equipped with electromagnets (8.2), which modules (8.1) partially surround the body (7) while forming a first fabric gap (14.1), and
    whereby the electromagnets (8.2) embody magnetic forces, which act on the body (7) and thereby form a magnetic bearing for the central carrier (3),
    characterized in that
    each of the modules (8.1) possesses spacing distance sensors (8.3) for regulating the magnetic forces of the electromagnets (8.2), and
    the device arranged on the upper free end of the central carrier (3) is a roller bearing (9), which consists of pairs of supporting rollers and fixing rollers, and
    the second fabric gap (14.2) formed between the pairs of supporting rollers and fixing rollers is adjustable via the positioning of the roller bearing in relation to the circular expander by means of the lifting apparatus.
  2. Circular expander according to patent claim 1, characterized in that the body (7) has a rotationally symmetrical outer circumference.
  3. Circular expander according to one of the patent claims 1 or 2, characterized in that the first fabric gap (14.1) extends straight.
  4. Circular expander according to one or more of the patent claims 1 to 3, characterized in that the body (7) consists completely of ferromagnetic material.
  5. Circular expander according to one or more of the patent claims 1 to 4, characterized in that ferromagnetic or permanent magnetic elements are integrated into the outer circumference of the body (7).
  6. Circular expander according to one or more of the patent claims 1 to 5, characterized in that, in addition to the electromagnets (8.2), also permanent magnets are integrated in the modules (8.1).
  7. Circular expander according to one or more of the patent claims 1 to 6, characterized in that respectively one electromagnet (8.2) and one spacing distance sensor (8.3) together with a regulator (8.4) form a closed control or regulating loop.
  8. Circular expander according claim 7, characterized in that one regulator (8.4) controls all regulating loops of the magnetic bearing (8).
EP05850169A 2004-12-23 2005-12-17 Circular expander for treating tubular fabric Not-in-force EP1834024B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004061991A DE102004061991A1 (en) 2004-12-23 2004-12-23 Round spreader for treating texile tubular fabric
PCT/DE2005/002275 WO2006066550A1 (en) 2004-12-23 2005-12-17 Circular expander for treating tubular fabric

Publications (2)

Publication Number Publication Date
EP1834024A1 EP1834024A1 (en) 2007-09-19
EP1834024B1 true EP1834024B1 (en) 2009-09-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05850169A Not-in-force EP1834024B1 (en) 2004-12-23 2005-12-17 Circular expander for treating tubular fabric

Country Status (9)

Country Link
US (1) US20080052885A1 (en)
EP (1) EP1834024B1 (en)
JP (1) JP2008523260A (en)
KR (1) KR20070089733A (en)
CN (1) CN101087911A (en)
AT (1) ATE443785T1 (en)
BR (1) BRPI0519223A2 (en)
DE (2) DE102004061991A1 (en)
WO (1) WO2006066550A1 (en)

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US8661632B2 (en) * 2011-09-22 2014-03-04 Ethicon, Inc. Method and apparatus for pliabilizing knitted or woven materials
CN103710927B (en) * 2012-10-08 2015-12-16 际华三五四三针织服饰有限公司 Tube stretches wide device and tube folding brake

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KR20070089733A (en) 2007-08-31
DE102004061991A1 (en) 2006-07-13
CN101087911A (en) 2007-12-12
BRPI0519223A2 (en) 2009-01-06
JP2008523260A (en) 2008-07-03
EP1834024A1 (en) 2007-09-19
WO2006066550A1 (en) 2006-06-29
US20080052885A1 (en) 2008-03-06
DE502005008210D1 (en) 2009-11-05
ATE443785T1 (en) 2009-10-15

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