EP0953813A2 - Apparatus for heat treatment of pervious webs - Google Patents

Apparatus for heat treatment of pervious webs Download PDF

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Publication number
EP0953813A2
EP0953813A2 EP99108313A EP99108313A EP0953813A2 EP 0953813 A2 EP0953813 A2 EP 0953813A2 EP 99108313 A EP99108313 A EP 99108313A EP 99108313 A EP99108313 A EP 99108313A EP 0953813 A2 EP0953813 A2 EP 0953813A2
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EP
European Patent Office
Prior art keywords
roller
screen
permeable
arms
width adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99108313A
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German (de)
French (fr)
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EP0953813A3 (en
EP0953813B1 (en
Inventor
Gerold Fleissner
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Truetzschler Nonwovens GmbH
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Fleissner GmbH
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Publication date
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Publication of EP0953813A2 publication Critical patent/EP0953813A2/en
Publication of EP0953813A3 publication Critical patent/EP0953813A3/en
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Publication of EP0953813B1 publication Critical patent/EP0953813B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
    • F26B13/16—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning perforated in combination with hot air blowing or suction devices, e.g. sieve drum dryers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D06B5/02—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length
    • D06B5/08—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through moving materials of indefinite length through fabrics
    • 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
    • D06C7/00—Heating or cooling textile fabrics

Definitions

  • the invention relates to a device for the heat treatment of permeable Goods webs in particular textile goods such as woven fabrics, knitted fabrics, tissue, nonwovens or Like.
  • a housing in which at least one screen roller and this a pump device is assigned on the end face, which is a vapor and / or gaseous treatment medium sucks from the screen roller, the flow area, ie the working width of the screen roller, by means of a width adjustment device on the screen roller determinable and the screen roller preferably a screen cover or a fixed one cylindrical, sieve-shaped body for flow equalization are assigned outside.
  • a device of this type is shown in DE-A 19 00 496.
  • Screen cover to equalize the air flow over the length of the screen roller disclosed.
  • the screen cover is along the entire length of the screen roller permeable to air, but only in the middle here because of a working width adjustment is provided in the middle of the roller.
  • the screen roller surrounds an additional one Wall that extends to the screen ceiling.
  • the wall is over several around the Spindle arranged axially adjustable.
  • the sieve cover is only air-permeable in the central area.
  • a width adjustment device of this type is very complex, simply because of the many drive spindles that have to be arranged around the roller. Moreover This construction is less suitable for wide webs because of the treatment air for the edge areas of the web from the permeable center of the screen cover must flow to these edge areas. An even application of Screening roller with treatment air over the width of the web is not possible.
  • the construction according to DE-A 19 26 742 is advantageous.
  • a screen roller which consists of two coaxially arranged screen roller shells there are, which are arranged at a distance from each other.
  • This construction has the advantage that the second, inner screen roller jacket as an additional damming element can be used. This is all the more true if the air permeability of the interior Jacket is smaller than that of the outer screen roller jacket.
  • the solution according to DE-A 19 26 742 is without a mechanical width adjustment a compromise to look at. Especially for larger working widths, i.e. long screen rolls, and larger different working widths is this construction in their Drying performance unsatisfactory.
  • the invention has for its object to find a screen roll construction combines the advantages of the two previously known constructions, but their disadvantages avoids.
  • the web of material passed around the screen roller covers only part of its circumference.
  • the size of this part depends on whether only one roller is to be used then the scope can be used to a greater percentage, or whether several Rolling z. B. to be used in a row in a row, then the scope a roller only 50% covered by the web.
  • the uncovered area a screen roller must be covered from the inside to prevent the flow. It is special advantageous construction found when the inner coaxially arranged permeable screen roller jacket connected to the inner cover and thus the inner Screen roller jacket rotatably and the outer screen roller jacket carrying the material web is rotatably supported around the inner screen roller jacket.
  • This construction can be designed in many advantageous ways.
  • a screen roller device basically consists of an approximately rectangular housing 1, through an intermediate wall 2 into a treatment room 3 and Fan room 4 is divided.
  • the screen roller 5 is concentric a fan 6 rotatable in the fan chamber 4 behind a nozzle star 13 stored.
  • the fan room can also be in one of the screen roller housing 1 separate, not shown, separate fan housing be arranged.
  • the fan inserts the inside of the roller 5 Suction. 1, there are heating units above and below the fan 6 7 arranged, which consist of pipes through which heating medium flows.
  • the Sieve roller is in the area not covered by the textile goods on the inside of one Axis 14 held inner cover 8 covered against the suction.
  • the roller 5 is wrapped around the outside by a fine-meshed sieve 9, which is on the front of the Roll held on the two floors 11, 12 by means of rings, not shown is.
  • the previously known roller 5 according to FIG. 1 is changed in FIG. 2 according to the invention.
  • the roller does not only consist of one screen roller shell, but two concentric jackets 5 and 15.
  • the inner jacket 15 is at a distance from the actual Screen roller jacket 5 arranged and complements with the inner cover 8 a complete cylinder.
  • the inner cover 8 is usually rotatably in the Roller 5 is mounted on the axis 14 and the screen roller jacket 5 rotates about this Inner cover 8.
  • the circumferential angle of the inner screen roll shell only just as large as the roller 5 is covered by the web and is on attached to the inner cover.
  • the roller 5 rotates around the inner screen roller shell 15, 8.
  • a width adjustment device is arranged between the two screen roller jackets 5 and 15 is in the flow area of the roller 5 . It consists of a radially aligned one annular bottom 16, which due to the central occupancy of the roller with the treating fabric also on the other end of the roller with the floor 17 is provided.
  • the size of the circular segment of the floors 16, 17 corresponds to the occupancy the roller with the web, so here according to FIG. 3 the angle of 180 °.
  • the goods are flooded, while the rest of the angular range with the inner cover 8 is closed against the flow.
  • the floors 16, 17 are held by two arms 18 on the axis 14 of the roller 5.
  • the arms are 18 So radially directed, but cranked in the axial direction to the end face of the roller 5, so the floors 16, 17 moved to the extreme working width of the roller 5 to the outside can be.
  • the inner screen roll jacket 15 is for the passage of the arms 18 at least in the area of the movement of the arms to adjust the desired one Working width slit lengthways.
  • the inner screen roll jacket 15 is perforated only in the middle, and basically only one Area 15 'of the smallest adjustable working width, axially outside is the outer surface closed. According to FIG. 2, a further area 15 ′′ can also be provided with a perforation, preferably be provided with a smaller free cross section in order to obtain a better one To achieve flow through a wider web.
  • the arms 18 have a flange 19 on both sides at their radially outer end Attachment of the arms 18 to the bottoms 16, 17 and at the radially inner end annular bearing shell 19, which forms a hollow shaft 20 forming the roller axis 14 encloses.
  • the bearing shell 19 and thus the arms 18 are thus on the hollow shaft 20th axially displaceable.
  • the drive for the displacement of the arms 18 takes place via a rotatably mounted in the axis 14 and driven from the outside spindle 21. Die Spindle 21 is positively surrounded by a drive pin 22, the radially outside is firmly connected to the bearing shell 19.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The apparatus for heat treating a permeable web has a mesh roller with two spaced coaxial mesh roller mantles (5, 15'), at least in the zone covered by the web round it. A width adjustment system (16-18) is between the outer (5) and inner (15) mesh roller mantles, with adjustment through a spindle (21) on the mesh roller (5) axis. The inner mesh roller mantle (15) has a permeable zone (15') only for the minimum roller working width. The width adjustment system has radially aligned bases (16, 17) in a ring shape between the mantles (5, 15), with arm links (18) to the axial bearing mounting of the roller (5). The ring-shaped bases (16, 17) extend only over a ring segment which is covered by the web material. The axial spindle (21) is surrounded by a hollow shaft (20), which carries an external ring bearing shell (19) with an axial sliding movement for the arms (18) and the bases (16, 17) of the width adjustment mechanism. The hollow shaft (20) has a longitudinal slit for the width adjustment system, with a drive lug (22) which meshes with the inner spindle (21) at one end and is bonded to the bearing shell (19) at the other end, to be moved along the slit. The inner coaxial and permeable mesh roller mantle (15) is bonded to the inner cladding (8) so that it is keyed against rotation for the outer mesh roller mantle (5) to rotate round it. The inner permeable section (15) of the mesh roller mantle is a circular segment, and the remainder of the circle is formed by the remaining circular segment of the inner cladding (8). The inner mesh roller mantle (15) has an axial slit at the movement zone of the arms (18) where they can pass through, and particularly at the air permeable segment. The ring-shaped bases (16, 17) are between the mesh roller mantles (15, 5) at both ends of the mesh roller (5), and keep the width adjustment system central. The ring base units (16, 17), with an axial setting, are held through three arms (18) and preferably two arms. The arms (18) are aligned radially over the inner mesh roller mantle (15), between the two mantles (15, 5), and also axially outwards to the end sides of the roller (5). The cross-section of the free air passage zone of the inner mesh roller mantle (15) is smaller than that of the outer roller mesh mantle (5). A further permeable zone (15) is axially outside the air permeable zone (15') of the inner roller mesh mantle (15), with a much narrower free cross-section than the center zone (15').

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Wärmebehandeln von durchlässigen Warenbahnen insbesondere Textilgütern wie Gewebe, Gewirke, Tissue, Vliese od. dgl. mit einem Gehäuse, in dem wenigstens eine Siebwalze an- und dieser eine Pumpeneinrichtung stirnseitig zugeordnet ist, die ein dampf- und/oder gasförmiges Behandlungsmedium aus der Siebwalze absaugt, wobei deren Durchströmbereich, also die Arbeitsbreite der Siebwalze, durch eine Breitenverstelleinrichtung an der Siebwalze bestimmbar und wobei der Siebwalze vorzugsweise eine Siebdecke oder ein feststehender zylinderförmiger, siebförmiger Körper zur Strömungsvergleichmäßigung außerhalb zugeordnet sind.The invention relates to a device for the heat treatment of permeable Goods webs in particular textile goods such as woven fabrics, knitted fabrics, tissue, nonwovens or Like. With a housing in which at least one screen roller and this a pump device is assigned on the end face, which is a vapor and / or gaseous treatment medium sucks from the screen roller, the flow area, ie the working width of the screen roller, by means of a width adjustment device on the screen roller determinable and the screen roller preferably a screen cover or a fixed one cylindrical, sieve-shaped body for flow equalization are assigned outside.

Eine Vorrichtung dieser Art ist in der DE-A 19 00 496 dargestellt. Dort ist auch die Siebdecke zur Vergleichmäßigung der Luftdurchströmung über die Länge der Siebwalze offenbart. Normalerweise ist die Siebdecke über die ganze Länge der Siebwalze luftdurchlässig, hier jedoch nur im mittleren Bereich, weil eine Arbeitsbreitenverstellung in der Mitte der Walze vorgesehen ist. Dazu umgibt die Siebwalze eine zusätzliche Wand, die sich bis zur Siebdecke erstreckt. Die Wand ist über mehrere rund um die Walze angeordnete Spindeln axial verstellbar. Um Falschluft - also die zu behandelnde Warenbahn nicht durchströmende, sondern direkt die nicht bedeckte Walzenfläche durch- und gleich zum Ventilator strömende Luft - bei kleiner eingestellter Arbeitsbreite zu vermeiden, ist also die Siebdecke nur im mittleren Bereich luftdurchlässig ausgebildet. Eine Breitenverstelleinrichtung dieser Art ist sehr aufwendig, allein wegen der vielen Antriebsspindeln, die rund um die Walze angeordnet werden müssen. Außerdem eignet sich diese Konstruktion weniger für breite Warenbahnen, weil die Behandlungsluft für die Randbereiche der Warenbahn von der nur durchlässigen Mitte der Siebdecke zu diesen Randbereichen strömen muß. Eine gleichmäßige Beaufschlagung der Siebwalze mit Behandlungsluft über die Warenbahnbreite ist nicht möglich. A device of this type is shown in DE-A 19 00 496. There is also that Screen cover to equalize the air flow over the length of the screen roller disclosed. Usually the screen cover is along the entire length of the screen roller permeable to air, but only in the middle here because of a working width adjustment is provided in the middle of the roller. For this purpose, the screen roller surrounds an additional one Wall that extends to the screen ceiling. The wall is over several around the Spindle arranged axially adjustable. For false air - i.e. the one to be treated Material web not flowing through, but directly the uncovered roller surface Air flowing through and directly to the fan - with a smaller working width To avoid, the sieve cover is only air-permeable in the central area. A width adjustment device of this type is very complex, simply because of the many drive spindles that have to be arranged around the roller. Moreover This construction is less suitable for wide webs because of the treatment air for the edge areas of the web from the permeable center of the screen cover must flow to these edge areas. An even application of Screening roller with treatment air over the width of the web is not possible.

In diesem Zusammenhang ist die Konstruktion nach der DE-A 19 26 742 von Vorteil. Dort ist eine Siebwalze offenbart, die aus zwei koaxial angeordneten Siebwalzenmänteln besteht, die mit einem Abstand voneinander angeordnet sind. Diese Konstruktion hat den Vorteil, daß der zweite, innere Siebwalzenmantel als zusätzliches Stauelement genutzt werden kann. Dies gilt umsomehr, wenn die Luftdurchlässigkeit des inneren Mantels kleiner als die des äußeren Siebwalzenmantels ist. Auch dort ist eine äußere Siebdecke offenbart, so daß die vom Ventilator anströmende Luft zuerst an dieser Decke über die Walzenlänge gestaut, also vergleichmäßigt wird. Dann strömt sie gleichmäßig über jede Arbeitsbreite durch die Ware auf der Walze und wird wegen des zweiten inneren Mantels erneut gestaut, was nicht nur eine gleichmäßigere Behandlung über die Arbeitsbreite ermöglicht, sondern evtl. sogar eine mechanische Breitenverstellung überflüssig macht, weil die Durchlässigkeit der Walze insgesamt vermindert ist. Diese wirkt sich aber effektiv nur im von der Warenbahn freien Bereich der Walze aus, da das Textilgut selbst im allgemeinen einen größeren Widerstand dem Durchtritt der Luft entgegensetzt als der Doppelmantel. Um auch dort Falschluft - also zwischen den Mänteln axial strömende Luft - zu vermeiden, sind im Außenbereich der Walze zwischen den Mänteln rund um die Walze radial sich erstreckende, ortsfeste Bleche vorgesehen.In this context, the construction according to DE-A 19 26 742 is advantageous. There a screen roller is disclosed which consists of two coaxially arranged screen roller shells there are, which are arranged at a distance from each other. This construction has the advantage that the second, inner screen roller jacket as an additional damming element can be used. This is all the more true if the air permeability of the interior Jacket is smaller than that of the outer screen roller jacket. There is also an outer one Sieve cover disclosed, so that the air flowing in from the fan first at this Cover is stowed over the length of the roller, so it is evened out. Then it flows evenly over every working width by the goods on the roller and is because of the second inner jacket jammed again, which is not just a more even treatment over the working width, but possibly even a mechanical width adjustment makes it superfluous because the permeability of the roller is reduced overall is. However, this only works effectively in the area of the roller that is free of the web because the textile goods themselves generally have greater resistance to passage opposed to the air as the double jacket. In order to get false air there - between Air flowing axially in the sheaths - should be avoided in the outer area of the roller between the jackets around the roller radially extending, stationary sheets intended.

Die Lösung nach der DE-A 19 26 742 ist ohne eine mechanische Breitenverstellung als ein Kompromiß anzusehen. Insbesondere für größere Arbeitsbreiten, also lange Siebwalzen, und größere unterschiedliche Arbeitsbreiten ist diese Konstruktion in ihrer Trocknungsleistung nicht zufriedenstellend.The solution according to DE-A 19 26 742 is without a mechanical width adjustment a compromise to look at. Especially for larger working widths, i.e. long screen rolls, and larger different working widths is this construction in their Drying performance unsatisfactory.

Der Erfindung liegt die Aufgabe zugrunde, eine Siebwalzenkonstruktion zu finden, die die Vorteile der beiden vorbekannten Konstruktionen vereint, jedoch deren Nachteile vermeidet. Es ist also eine Konstruktion gesucht, die eine gleichmäßige Luftdurchströmung der breitesten Warenbahn gewährleistet, jedoch auch optimal für eine schmälere Warenbahnbreite einstellbar ist, ohne daß dazu eine so aufwendige Konstruktion, wie in der DE-A 19 00 496 offenbart, notwendig ist.The invention has for its object to find a screen roll construction combines the advantages of the two previously known constructions, but their disadvantages avoids. We are looking for a construction that ensures even air flow guarantees the widest web, but also optimal for a narrower one Web width is adjustable, without this being such a complex construction as disclosed in DE-A 19 00 496 is necessary.

Ausgehend von der Konstruktion anfangs genannter Art wird die gefundene Lösung darin gesehen, daß

  • a) die Siebwalze zumindest im von der Warenbahn bedeckten Bereich zwei koaxial angeordnete durchlässige Siebwalzenmäntel aufweist, die mit einem Abstand voneinander angeordnet sind,
  • b) zwischen dem äußeren und dem inneren Siebwalzenmantel eine Breitenverstelleinrichtung vorgesehen ist, die
  • c) über eine Spindel in der Achse der Siebwalze verstellbar ist, und
  • d) der innere Siebwalzenmantel nur in dem Bereich durchlässig ausgebildet ist, der der minimalen Arbeitsbreite der Walze entspricht.
    • Based on the construction mentioned at the beginning, the solution found is seen in the fact that
  • a) at least in the area covered by the web, the screen roller has two coaxially arranged permeable screen roller shells which are arranged at a distance from one another,
  • b) a width adjustment device is provided between the outer and the inner screen roll jacket, which
  • c) is adjustable via a spindle in the axis of the screen roller, and
  • d) the inner screen roller jacket is permeable only in the area that corresponds to the minimum working width of the roller.

    • Damit ist eine einfache und folglich preisgünstige Konstruktion gefunden, die alle Bedingungen für eine gleichmäßige Behandlung von Warenbahnen beliebiger Arbeitsbreite erfüllt. Der doppelte Siebwalzenmantel gewährleistet eine starke Drosselung der Durchströmgeschwindigkeit und bewirkt damit eine gleichmäßig Beaufschlagung der Warenbahn über seine Breite mit der Luft. Dieses Problem gilt besonders für große Arbeitsbreiten und kleine Siebwalzendurchmesser. Verstärkt ist dies weiterhin, wenn ein Ventilator nur an der einen Stirnseite der Walze angebracht werden soll. Wenn nun in einfacher Weise zwischen den beiden Siebwalzenmänteln die von der Achse her steuerbare Arbeitsbreitenverstellung plaziert ist, dann ist diese Konstruktion optimal für jede Warenbahnbreite.This is a simple and therefore inexpensive construction that meets all conditions for an even treatment of webs of any working width Fulfills. The double screen roller jacket ensures strong throttling of the Flow velocity and thus causes an even application of Material web across its width with the air. This problem applies especially to large ones Working widths and small screen roller diameters. This is exacerbated if a fan should only be attached to one end of the roller. If so in a simple way between the two screen roller jackets from the axis controllable working width adjustment is placed, then this construction is optimal for any web width.

    Die um die Siebwalze geführte Warenbahn bedeckt nur einen Teil seines Umfangs. Die Größe dieses Teils hängt davon ab, ob nur eine Walze benutzt werden soll, dann kann der Umfang zu einem größeren Prozentsatz genutzt werden, oder ob mehrere Walzen z. B. in einer Reihe hintereinander genutzt werden sollen, dann ist der Umfang einer Walze nur zu 50 % von der Warenbahn bedeckt. Der nicht bedeckte Bereich einer Siebwalze ist gegen die Durchströmung von innen abzudecken. Es ist eine besonders vorteilhafte Konstruktion gefunden, wenn der innere koaxial angeordnete durchlässige Siebwalzenmantel mit der Innenabdeckung verbunden und somit der innere Siebwalzenmantel drehfest und der äußere die Warenbahn tragende Siebwalzenmantel um den inneren Siebwalzenmantel drehbar gelagert ist.The web of material passed around the screen roller covers only part of its circumference. The size of this part depends on whether only one roller is to be used then the scope can be used to a greater percentage, or whether several Rolling z. B. to be used in a row in a row, then the scope a roller only 50% covered by the web. The uncovered area a screen roller must be covered from the inside to prevent the flow. It is special advantageous construction found when the inner coaxially arranged permeable screen roller jacket connected to the inner cover and thus the inner Screen roller jacket rotatably and the outer screen roller jacket carrying the material web is rotatably supported around the inner screen roller jacket.

    Diese Konstruktion ist vielfältig vorteilhaft zu gestalten. Die Breitenverstellung besteht dann nur aus einem, bei mittig organisierter Auflage der Warenbahn auf der Walze aus zwei ringförmigen radial ausgerichteten Böden, die über- Arme mit der axialen Lagerung der Walze verbunden sind. Da der innere Siebwalzenmantel drehfest gelagert ist, braucht der jeweilige Boden sich nur über den Durchströmbereich der Walze zu erstrecken, womit zur Lagerung des Bodens zwei Arme ausreichen.This construction can be designed in many advantageous ways. The width adjustment exists then only from one, with a centrally organized support of the web on the roller two ring-shaped radially aligned bottoms, the over-arms with the axial Storage of the roller are connected. Because the inner screen roller jacket is non-rotatable is stored, the respective floor needs only over the flow area of the To extend roller, so that two arms are sufficient to store the floor.

    Eine Vorrichtung der erfindungsgemäßen Art ist in der Zeichnung beispielhaft dargestellt. Anhand dieser sollen noch weitere erfinderische Details der Vorrichtung erläutert werden. Es zeigen:

    Fig. 1
    einen Schnitt längs durch eine übliche Siebwalzenvorrichtung, deren Mantel aus einer gelochten Blechwalze mit radial außen aufgespanntem Siebgewebe besteht,
    Fig. 2
    die erfindungsgemäße Siebwalze im Längsschnitt entlang der Schnittlinie II - II gemäß Fig. 3 mit zwei im Arbeitsbereich der Walze vorgesehenen hintereinander zu durchströmenden gelochten Blechmänteln und
    Fig. 3
    einen Querschnitt durch die Walze nach Fig. 2.
    A device of the type according to the invention is shown as an example in the drawing. Further inventive details of the device are to be explained on the basis of these. Show it:
    Fig. 1
    2 shows a section lengthwise through a conventional screen roller device, the jacket of which consists of a perforated sheet metal roller with a screen fabric stretched radially on the outside,
    Fig. 2
    the screen roller according to the invention in longitudinal section along the section line II - II according to FIG. 3 with two perforated sheet metal shells to be flowed through in the working area of the roller and
    Fig. 3
    3 shows a cross section through the roller according to FIG. 2.

    Eine Siebwalzenvorrichtung besteht grundsätzlich aus einem etwa rechteckigen Gehäuse 1, das durch eine Zwischenwand 2 in einen Behandlungsraum 3 und einen Ventilatorraum 4 unterteilt ist. Im Behandlungraum 3 ist die Siebwalze 5 und konzentrisch zu dieser im Ventilatorraum 4 hinter einem Düsenstern 13 ein Ventilator 6 drehbar gelagert. Selbstverständlich kann der Ventilatorraum auch in einem von dem Siebwalzengehäuse 1 abgetrennten, hier nicht dargestellten, gesonderten Ventilatorgehäuse angeordnet sein. Jedenfalls setzt der Ventilator das Innere der Walze 5 unter Saugzug. Gemäß der Fig. 1 sind ober- und unterhalb des Ventilators 6 jeweils Heizaggregate 7 angeordnet, die aus mit Heizmedium durchflossenen Rohren bestehen. Ober- und unterhalb der Siebwalze 5 ist im Behandlungsraum 3 eine Staudecke 10 angeordnet, die für den Stau und damit für die über die Arbeitsbreite gleichmäßige Verteilung der vom Ventilator 6 anströmenden Luft vor der Walze 5 sorgen soll. Die Siebwalze ist in dem nicht vom Textilgut bedeckten Bereich innen von einer an der Achse 14 gehaltenen Innenabdeckung 8 gegen den Saugzug abgedeckt. Die Walze 5 ist außen von einem feinmaschigem Sieb 9 umschlungen, das an der Stirnseite der Walze an den beiden Böden 11, 12 mittels nicht dargestellter Ringe gespannt gehalten ist.A screen roller device basically consists of an approximately rectangular housing 1, through an intermediate wall 2 into a treatment room 3 and Fan room 4 is divided. In the treatment room 3, the screen roller 5 is concentric a fan 6 rotatable in the fan chamber 4 behind a nozzle star 13 stored. Of course, the fan room can also be in one of the screen roller housing 1 separate, not shown, separate fan housing be arranged. In any case, the fan inserts the inside of the roller 5 Suction. 1, there are heating units above and below the fan 6 7 arranged, which consist of pipes through which heating medium flows. There is a storage ceiling 10 in the treatment room 3 above and below the screen roller 5 arranged for the traffic jam and thus for the uniform over the working width Distribution of the air flowing in from the fan 6 should ensure in front of the roller 5. The Sieve roller is in the area not covered by the textile goods on the inside of one Axis 14 held inner cover 8 covered against the suction. The roller 5 is wrapped around the outside by a fine-meshed sieve 9, which is on the front of the Roll held on the two floors 11, 12 by means of rings, not shown is.

    Die vorbekannte Walze 5 nach Fig. 1 ist in Fig. 2 gemäß der Erfindung geändert. Zunächst besteht die Walze nicht nur aus einem Siebwalzenmantel, sondern aus zwei konzentrischen Mänteln 5 und 15. Der innere Mantel 15 ist mit Abstand zum eigentlichen Siebwalzenmantel 5 angeordnet und ergänzt sich mit der Innenabdeckung 8 zu einem vollständigen Zylinder. Die Innenabdeckung 8 ist üblicherweise drehfest in der Walze 5 an der Achse 14 gelagert und der Siebwalzenmantel 5 dreht sich um diese Innenabdeckung 8. In einfacherweise ist der Umfangswinkel des inneren Siebwalzenmantels nur gerade so groß wie die Walze 5 von der Warenbahn bedeckt ist und ist an der Innenabdeckung befestigt. Somit dreht sich die Walze 5 um den inneren Siebwalzenmantel 15, 8.The previously known roller 5 according to FIG. 1 is changed in FIG. 2 according to the invention. First the roller does not only consist of one screen roller shell, but two concentric jackets 5 and 15. The inner jacket 15 is at a distance from the actual Screen roller jacket 5 arranged and complements with the inner cover 8 a complete cylinder. The inner cover 8 is usually rotatably in the Roller 5 is mounted on the axis 14 and the screen roller jacket 5 rotates about this Inner cover 8. In simple is the circumferential angle of the inner screen roll shell only just as large as the roller 5 is covered by the web and is on attached to the inner cover. Thus, the roller 5 rotates around the inner screen roller shell 15, 8.

    Zwischen den beiden Siebwalzenmänteln 5 und 15 ist im Durchströmbereich der Walze 5 eine Breitenverstelleinrichtung angeordnet. Sie besteht aus einem radial ausgerichteten ringförmigen Boden 16, der wegen der mittigen Belegung der Walze mit der zu behandelnden Warenbahn auch auf der anderen Stirnseite der Walze mit dem Boden 17 vorgesehen ist. Die Größe des Kreissegments der Böden 16, 17 entspricht der Belegung der Walze mit der Warenbahn, also hier gemäß Fig. 3 dem Winkel von 180°. Über diesen Winkel, nur in diesem Bereich 15' ist auch der innere Siebwalzenmantel 15 perforiert, findet die Warendurchflutung statt, während der übrige Winkelbereich mit der Innenabdeckung 8 gegen die Durchströmung verschlossen ist. Die Böden 16, 17 sind über je zwei Arme 18 an der Achse 14 der Walze 5 gehalten. Die Arme 18 sind also radial gerichtet, in Achsrichtung jedoch zur Stirnseite der Walze 5 gekröpft, damit die Böden 16, 17 bis zur äußersten Arbeitsbreite der Walze 5 nach außen bewegt werden können. Der innere Siebwalzenmantel 15 ist zum Durchtritt der Arme 18 zumindest im Bereich der Bewegung der Arme zur Verstellung der gewünschten Arbeitsbreite längs geschlitzt ausgeführt.Between the two screen roller jackets 5 and 15 is in the flow area of the roller 5 a width adjustment device is arranged. It consists of a radially aligned one annular bottom 16, which due to the central occupancy of the roller with the treating fabric also on the other end of the roller with the floor 17 is provided. The size of the circular segment of the floors 16, 17 corresponds to the occupancy the roller with the web, so here according to FIG. 3 the angle of 180 °. About this angle, only in this area 15 'is the inner screen roll jacket 15 perforated, the goods are flooded, while the rest of the angular range with the inner cover 8 is closed against the flow. The floors 16, 17 are held by two arms 18 on the axis 14 of the roller 5. The arms are 18 So radially directed, but cranked in the axial direction to the end face of the roller 5, so the floors 16, 17 moved to the extreme working width of the roller 5 to the outside can be. The inner screen roll jacket 15 is for the passage of the arms 18 at least in the area of the movement of the arms to adjust the desired one Working width slit lengthways.

    Der innere Siebwalzenmantel 15 ist nur mittig perforiert, und zwar im Grunde nur ein Bereich 15' der kleinsten einstellbaren Arbeitsbreite, axial außen ist die Mantelfläche geschlossen. Gemäß Fig. 2 kann ein weiterer Bereich 15'' ebenfalls mit einer Perforation, vorzugsweise mit geringerem freien Querschnitt versehen sein, um eine bessere Durchströmung einer breiteren Warenbahn zu erzielen.The inner screen roll jacket 15 is perforated only in the middle, and basically only one Area 15 'of the smallest adjustable working width, axially outside is the outer surface closed. According to FIG. 2, a further area 15 ″ can also be provided with a perforation, preferably be provided with a smaller free cross section in order to obtain a better one To achieve flow through a wider web.

    Die Arme 18 weisen an ihrem radial äußeren Ende einen beidseitigen Flansch 19 zur Befestigung der Arme 18 an den Böden 16, 17 und an dem radial inneren Ende eine ringförmige Lagerschale 19 auf, die eine die Walzenachse 14 bildende Hohlwelle 20 umschließt. Die Lagerschale 19 und damit die Arme 18 sind also auf der Hohlwelle 20 axial verschieblich gelagert. Der Antrieb für die Verschiebung der Arme 18 erfolgt über eine drehbar in der Achse 14 gelagerte und von außen angetriebene Spindel 21. Die Spindel 21 ist von einem Antriebszapfen 22 formschlüssig umgeben, der radial außen mit der Lagerschale 19 fest verbunden ist. Um diese Verschiebung der Lagerschale 19 und damit der Böden 16, 17 zu ermöglichen, ist die Hohlwelle 20 im Bereich der Verschiebung der Lagerschale 19 längs geschlitzt.The arms 18 have a flange 19 on both sides at their radially outer end Attachment of the arms 18 to the bottoms 16, 17 and at the radially inner end annular bearing shell 19, which forms a hollow shaft 20 forming the roller axis 14 encloses. The bearing shell 19 and thus the arms 18 are thus on the hollow shaft 20th axially displaceable. The drive for the displacement of the arms 18 takes place via a rotatably mounted in the axis 14 and driven from the outside spindle 21. Die Spindle 21 is positively surrounded by a drive pin 22, the radially outside is firmly connected to the bearing shell 19. By this displacement of the bearing shell 19 and thus enable the floors 16, 17, the hollow shaft 20 is in the range of displacement the bearing shell 19 slotted lengthways.

    Claims (14)

    Vorrichtung zum Wärmebehandeln von durchlässigen Warenbahnen insbesondere Textilgütern wie Gewebe, Gewirke, Tissue, Vliese od. dgl. mit einem Gehäuse, in dem wenigstens eine Siebwalze an- und dieser eine Pumpeneinrichtung stirnseitig zugeordnet ist, die ein dampf- und/oder gasförmiges Behandlungsmedium aus der Siebwalze absaugt, wobei deren Durchströmbereich, also die Arbeitsbreite der Siebwalze, durch eine Breitenverstelleinrichtung an der Siebwalze bestimmbar und wobei der Siebwalze vorzugsweise eine Siebdecke oder ein feststehender zylinderförmiger, siebförmiger Körper zur Strömungsvergleichmäßigung außerhalb zugeordnet sind, dadurch gekennzeichnet ist, daß a) die Siebwalze zumindest im von der Warenbahn bedeckten Bereich zwei koaxial angeordnete durchlässige Siebwalzenmäntel (5, 15') aufweist, die mit einem Abstand voneinander angeordnet sind, b) zwischen dem äußeren (5) und dem inneren Siebwalzenmantel (15) eine Breitenverstelleinrichtung (16, 17; 18) vorgesehen ist, die c) über eine Spindel (21) in der Achse der Siebwalze (5) verstellbar ist, und d) der innere Siebwalzenmantel (15) nur in dem Bereich (15') durchlässig ausgebildet ist, der der minimalen Arbeitsbreite der Walze entspricht. Device for the heat treatment of permeable webs of goods, in particular textile goods such as woven, knitted, tissue, nonwovens or the like, with a housing in which at least one screen roller is attached to this and a pump device is assigned to the end thereof, which is a vapor and / or gaseous treatment medium from the Sucks off the screen roller, the flow area, i.e. the working width of the screen roller, can be determined by a width adjustment device on the screen roller and the screen roller is preferably assigned a screen cover or a fixed cylindrical, screen-shaped body for flow equalization outside, characterized in that a) at least in the area covered by the web, the screen roller has two coaxially arranged permeable screen roller jackets (5, 15 ') which are arranged at a distance from one another, b) a width adjustment device (16, 17; 18) is provided between the outer (5) and the inner screen roll jacket (15) c) via a spindle (21) in the axis of the screen roller (5) is adjustable, and d) the inner screen roller jacket (15) is permeable only in the area (15 ') which corresponds to the minimum working width of the roller. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Breitenverstelleinrichtung aus einem ringförmigen zwischen den Mänteln (5, 15) angeordneten und radial ausgerichteten Boden (16, 17) besteht, der über Arme (18) mit der axialen Lagerung der Walze (5) verbunden ist.Device according to claim 1, characterized in that the width adjustment device from an annular between the jackets (5, 15) arranged and radially aligned bottom (16, 17), which has arms (18) with the axial Storage of the roller (5) is connected. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der ringförmige Boden (16, 17) sich nur über ein Ringsegment, nämlich dem von der Warenbahn bedeckten Segment der Siebwalze erstreckt. Device according to claim 1 or 2, characterized in that the annular Bottom (16, 17) only over a ring segment, namely that of the web covered segment of the screen roller extends. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die axial angeordnete Spindel (21) von einer Hohlwelle (20) umgeben ist, auf deren Außenumfang eine ringförmige Lagerschale (19) für die Breitenverstelleinrichtung der Arme (18) und damit des Bodens (16, 17) axial verschiebbar ist.Device according to one of claims 1 to 3, characterized in that the axially arranged spindle (21) is surrounded by a hollow shaft (20) on its An outer circumference of an annular bearing shell (19) for the width adjustment device the arms (18) and thus the bottom (16, 17) is axially displaceable. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Hohlwelle (20) im Bereich für die Breitenverstelleinrichtung längs geschlitzt ist und sich durch den Schlitz der einerseits um die Spindel (21) greifende und andererseits mit der Lagerschale (19) verbundene Antriebszapfen (22) der Breitenverstelleinrichtung erstreckt.Apparatus according to claim 4, characterized in that the hollow shaft (20) in Area for the width adjustment device is slotted longitudinally and through the Slot on the one hand around the spindle (21) and on the other hand with the bearing shell (19) connected drive pin (22) of the width adjustment device extends. Vorrichtung mit einer drehfesten Innenabdeckung zur Begrenzung des Durchströmbereichs in Bezug auf den Umfangswinkel der Siebwalze insbesondere nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der innere koaxial angeordnete durchlässige Siebwalzenmantel (15) mit der Innenabdeckung (8) verbunden und somit der innere Siebwalzenmantel (15, 8) drehfest und der äußere die Warenbahn tragende Siebwalzenmantel (5) um den inneren Siebwalzenmantel (15, 8) drehbar gelagert ist.Device with a non-rotatable inner cover to limit the flow area with respect to the circumferential angle of the screen roller especially after one of the preceding claims, characterized in that the inner coaxially arranged permeable screen roller jacket (15) with the inner cover (8) connected and thus the inner screen roll jacket (15, 8) rotatably and outer screen roller jacket (5) carrying the fabric around the inner screen roller jacket (15, 8) is rotatably mounted. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der innere durchlässige Teil (15) des Siebwalzenmantels nur aus einem Kreissegment besteht und der übrige Bereich des vollen Kreises durch das verbleibende Kreissegment der Innenabdeckung (8) gebildet ist.Device according to claim 6, characterized in that the inner permeable Part (15) of the screen roll shell consists of only one segment of a circle and the rest of the full circle through the remaining segment of the circle Inner cover (8) is formed. Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß der innere Siebwalzenmantel (15) im Bereich der Bewegung der Arme (18) für die Breitenverstelleinrichtung in Achsrichtung für den Durchtritt der Arme (18) geschlitzt ist.Apparatus according to claim 6 or 7, characterized in that the inner Sieve roller jacket (15) in the area of movement of the arms (18) for the width adjustment device is slotted in the axial direction for the passage of the arms (18). Vorrichtung nach Anspruch 3 und 8, dadurch gekennzeichnet, daß das luftdurchlässige Segment des inneren Siebwalzenmantels (15) im Bereich der Bewegung der Arme (18) für die Breitenverstelleinrichtung in Achsrichtung für den Durchtritt der Arme (18) geschlitzt ist. Apparatus according to claim 3 and 8, characterized in that the air-permeable Segment of the inner screen roll shell (15) in the area of movement the arms (18) for the width adjustment device in the axial direction for the passage the arm (18) is slotted. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der ringförmige Boden (16, 17) zwischen den durchlässigen Siebwalzenmänteln (15, 5) an beiden Enden der Siebwalze (5) vorgesehen, also die Breitenverstellung mittig organisiert ist.Device according to one of the preceding claims, characterized in that that the annular bottom (16, 17) between the permeable screen roll shells (15, 5) are provided at both ends of the screen roller (5), i.e. the width adjustment is organized in the middle. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der jeweilige axial verstellbare Boden (16, 17) durch drei vorzugsweise zwei Arme (18) an der Walzenachse gehalten ist.Device according to one of the preceding claims, characterized in that that the respective axially adjustable bottom (16, 17) is preferred by three two arms (18) is held on the roller axis. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, daß die Arme (18) über den Bereich des inneren Siebwalzenmantels (15) im wesentlichen radial gerichtet, im Bereich zwischen den beiden Mänteln (15, 5) jedoch axial nach außen zu den Stirnseiten der Walze (5) ausgerichtet sind.Device according to claim 11, characterized in that the arms (18) over the area of the inner screen roll shell (15) is directed essentially radially, in the area between the two jackets (15, 5), however, axially outwards to the End faces of the roller (5) are aligned. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der luftdurchtrittsfreie Querschnitt des luftdurchlässigen Bereichs des inneren Siebwalzenmantels (15) kleiner ist als der des äußeren Siebwalzenmantels (5).Device according to one of the preceding claims, characterized in that that the air passage-free cross section of the air permeable area of the inner Screen roll jacket (15) is smaller than that of the outer screen roll jacket (5). Vorrichtung nach Anspruch 13, dadurch gekennzeichnet, daß axial außerhalb des luftdurchlässigen Bereichs (15') des inneren Siebwalzenmantels (15) ein weiterer durchlässiger Bereich (15'') vorgesehen ist mit gegenüber dem mittleren Bereich (15') noch weiter geringerem freien Querschnitt.Apparatus according to claim 13, characterized in that axially outside the air-permeable area (15 ') of the inner screen roll shell (15) another permeable area (15 '') is provided with respect to the central area (15 ') even smaller free cross section.
    EP99108313A 1998-04-30 1999-04-22 Apparatus for heat treatment of pervious webs Expired - Lifetime EP0953813B1 (en)

    Applications Claiming Priority (2)

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    DE19819340A DE19819340A1 (en) 1998-04-30 1998-04-30 Device for the heat treatment of permeable webs
    DE19819340 1998-04-30

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    DE19819340A1 (en) 1999-11-04
    EP0953813A3 (en) 1999-12-01
    US6151797A (en) 2000-11-28
    EP0953813B1 (en) 2003-04-09

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