EP0068119A2 - Process for heating a roller, and heated roller - Google Patents

Process for heating a roller, and heated roller Download PDF

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Publication number
EP0068119A2
EP0068119A2 EP82104014A EP82104014A EP0068119A2 EP 0068119 A2 EP0068119 A2 EP 0068119A2 EP 82104014 A EP82104014 A EP 82104014A EP 82104014 A EP82104014 A EP 82104014A EP 0068119 A2 EP0068119 A2 EP 0068119A2
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EP
European Patent Office
Prior art keywords
godet
heatable
fan blades
roller
jacket
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
EP82104014A
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German (de)
French (fr)
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EP0068119B1 (en
EP0068119A3 (en
Inventor
Kurt Müller
Armin Wirz
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP0068119A2 publication Critical patent/EP0068119A2/en
Publication of EP0068119A3 publication Critical patent/EP0068119A3/en
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass

Definitions

  • the invention relates to a method for heating a godet and to a heatable godet with a rotatable roller jacket to be heated, forming a cavity, and with a heating device in the cavity of the roller jacket.
  • Heatable godets which contain the method for heating a godet by means of a vaporous medium, since a hermetically sealed space between the jacket to be heated and a radiator is partially filled with liquid, the steam of which is used for heat dissipation by means of condensation on the roller jacket ( e.g. DAS 1804 777).
  • the invention achieves the object procedurally in that the godet is heated by means of a gaseous medium and in that the medium inside the godet is in a substantially closed circuit on a heating device and on the inner wall of a rotating one to be heated Roll jacket is passed.
  • the object is achieved in that the heating device is provided with air guide channels in such a way that a free space of U-shaped cross-section, seen in the circumferential direction, is formed on both end faces of the cavity and between the inside of the roll jacket and the air guide channels, and that the roll jacket in this free space with a fan show feln is provided that when the roll shell rotates, the air forms a circuit flowing through the free space and through the air guide channels.
  • the fan blades can be arranged as radial fan blades on one end face of the cavity on the roller casing, so that the inside of the casing is free for possible favorable heat transfer structures such as e.g. B. grooves with different depths and / or helical arrangement.
  • the air channels can be on a stationary webs which are arranged coaxially in the roller jacket and which are encased in a jacket and are arranged radially and axially stretched on the carrier at least in the end part, as seen in the direction of flow, which provides the advantage that there is no swirl reducing the negative pressure in the flow at the outlet from the channels.
  • a stationary carrier 1 (FIG. 1) is fixedly arranged in a machine housing 2.
  • the bearings 3 take over the rotatable mounting of a roller shell 4.
  • the roller shell 4 comprises a cavity 5 (FIG. 1) in which, on an annular end face 6 (FIG. 1), radially elongated fan blades 7 (FIGS. 1 and 2) are attached.
  • air channels 9 are provided on a support arm 8 belonging to the support 1 and extending coaxially to the roller jacket 4, which are arranged by webs 11 (FIG. 3-5) which are fixedly arranged in a radial and axially stretched manner on the support arm 8 and are encompassed by a jacket 10. be formed.
  • the webs 11 are firmly connected to the jacket 10.
  • This jacket 10 forms a free space of U-shaped cross-section, seen in the circumferential direction, in the cavity 5, which is delimited by the roller jacket 4 through the end face 6 of the roller jacket inner side 12 and a further cavity end face 13.
  • the end face 13 is part of the carrier 1 and, with its continuation 14 and an L-shaped surface 15 on the roller jacket 4, forms an air gap which connects the cavity 5 with the ambient air of the godet.
  • the carrier 1 with the bearings 3, the channels 9, and the roller shell 4 with the fan blades 7 is collectively referred to as a so-called godet.
  • the fan blades 7 When the roller shell 4 rotates, the fan blades 7 on the one hand create an air circuit with a directional component in the direction K and on the other hand a directional component in the circumferential direction of the roller shell 4, from which a resulting flow direction K '(not shown) is formed.
  • the radii r are provided for fluidic reasons.
  • the elongated, radially directed fan blades 7 allow the direction of rotation of the roller jacket 4 to be reversed without a deterioration in the flow characteristics.
  • the fan blades 7 can be designed in a certain direction of rotation as forward or backward curved fan blades with the basic change in the flow characteristic known per se from fan technology.
  • the heating elements in the channels 9 are provided heating mats 18, which are circumferentially on the jacket 10 and on both sides of the webs 11, i.e. are arranged circumferentially in the channels 9.
  • the heating elements can be heating rods 20 provided in the webs 11.
  • the webs 11 are shaped accordingly, as shown in the figures mentioned.
  • heating spirals 19 can be provided in the channels 9 as heating elements.
  • the roller jacket 4 forms, together with an end wall 21 and a shaft 22, a unit which can be seen in the bearings 3.
  • the roll shell In order to give off the heat more intensively to the inside of the roll shell, it can be provided with grooves (not shown).
  • the groove depth can increase in inverse proportion to the decreasing temperature of the flowing air.
  • the grooves can also be arranged axially or helically or crossed helically.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Der Rollenmantel (4) wird mit einem gasförmigen Medium geheizt, indem das Medium in einem durch die rotierenden Ventilatorschaufeln (7) erzeugten und in den Kanälen (9) gelenkten Luftkreislauf (K) an Heizelementen erwärmt und die Wärme an der Rollenmantelinnenseite (12) wieder abgegeben wird.The roller jacket (4) is heated with a gaseous medium by heating the medium in an air circuit (K) generated by the rotating fan blades (7) and directed in the channels (9) on heating elements and the heat on the inside of the roller jacket (12) again is delivered.

Description

Die Erfindung bezieht sich auf ein Verfahren zum Heizen einer Galette und auf eine heizbare Galette mit einem zu beheizenden, einen Hohlraum bildenden, drehbaren Rollenmantel sowie mit einer Heizvorrichtung im Hohlraum des Rollenmantels.The invention relates to a method for heating a godet and to a heatable godet with a rotatable roller jacket to be heated, forming a cavity, and with a heating device in the cavity of the roller jacket.

Es sind insofern heizbare Galetten bekannt, die das Verfahren zum Heizen einer Galette mittels eines dampfförmigen Mediums beinhalten, als zwischen dem zu beheizenden Mantel und einem Heizkörper ein hermetisch verschlossener Raum teilweise mit Flüssigkeit gefüllt wird, deren Dampf zur Wärmeabgabe mittels Kondensation am Rollenmantel verwendet wird (z.B. DAS 1804 777).Heatable godets are known which contain the method for heating a godet by means of a vaporous medium, since a hermetically sealed space between the jacket to be heated and a radiator is partially filled with liquid, the steam of which is used for heat dissipation by means of condensation on the roller jacket ( e.g. DAS 1804 777).

Solche Systeme arbeiten mit Ueberdruck im verschlossenen Raum, und haben dadurch den Nachteil, dass, um der notwendigen Festigkeit zu genügen, relativ schwere Konstruktionen notwendig sind.Such systems work with overpressure in a closed space, and have the disadvantage that, in order to meet the necessary strength, relatively heavy constructions are necessary.

Schwere Konstruktionen verursachen bei den heute gewünschten zunehmend hohen Drehzahlen Schwingungsprobleme beim Lauf solcher Galetten.Heavy constructions cause vibration problems when running such godets at the increasingly high speeds desired today.

Der Vorteil eines solchen Wärmeabgabesystems gegenüber einem ebenfalls an sich bekannten induktiv geheizten Rollenmantel besteht jedoch darin, dass die Wärmeabgabe sich örtlich nach dem Wärmebedarf richtet, indem die Wärmeabgabe proportional zur Temperaturdifferenz steigt, während in einem induktiv geheizten Rollenmantel der Nachteil besteht, dass an jeder Stelle immer die vorbestimmte Wärmemenge erzeugt wird, unabhängig vom eventuell örtlich veränderlichen Wärmebedarf. Dadurch kann eine stark ungleiche Wärmeverteilung am Rollenmantel entstehen. Durch eine ungleiche Wärmeverteilung entstehen an der Rollenoberfläche überhitzte Stellen, die z.B. bei Wickelbildung zu einem Kleben des Fadenmaterials an der Rolle führt. Rein induktiv geheizte Rollenmäntel haben andererseits den Vorteil der leichteren Bauweise. Die erwähnten Nachteile zu beheben ist Aufgabe der Erfindung.However, the advantage of such a heat emission system compared to an inductively heated roller jacket, which is also known per se, is that the heat emission depends locally on the heat requirement, in that the heat output increases in proportion to the temperature difference, whereas in an inductively heated roller jacket there is the disadvantage that at every point the predetermined amount of heat is always generated, regardless of the possibly changing heat demand. This can result in a very uneven heat distribution on the roller jacket. Uneven heat distribution creates overheated spots on the roll surface, which e.g. leads to the thread material sticking to the roll when the roll is formed. On the other hand, purely induction heated roller shells have the advantage of being lighter in design. The object of the invention is to remedy the disadvantages mentioned.

Die Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, löst die Aufgabe verfahrensmässig dadurch, dass die Galette mittels eines gasförmigen Mediums beheizt und, dass das Medium innerhalb der Galette in einem im wesentlichen geschlossenen Kreislauf an einer Heizvorrichtung und an der Innenwand eines zu beheizenden rotierenden Rollenmantels vorbeigeführt wird.The invention, as characterized in the claims, achieves the object procedurally in that the godet is heated by means of a gaseous medium and in that the medium inside the godet is in a substantially closed circuit on a heating device and on the inner wall of a rotating one to be heated Roll jacket is passed.

Vorrichtungsmässig wird die Aufgabe dadurch gelöst, dass die Heizvorrichtung derart mit Luftleitkanälen versehen ist, dass an beiden Stirnseiten des Hohlraumes sowie zwischen der Rollenmantelinnenseite und den Luftleitkanälen ein freier Raum von U-förmigem Querschnitt, in Umfangsrichtung gesehen, gebildet wird, sowie dass der Rollenmantel in diesem freien Raum derart mit Ventilatorschaufeln versehen ist, dass bei Rotation des Rollenmantels die Luft einen durch den freien Raum und durch die Luftleitkanäle strömenden Kreislauf bildet.In terms of the device, the object is achieved in that the heating device is provided with air guide channels in such a way that a free space of U-shaped cross-section, seen in the circumferential direction, is formed on both end faces of the cavity and between the inside of the roll jacket and the air guide channels, and that the roll jacket in this free space with a fan show feln is provided that when the roll shell rotates, the air forms a circuit flowing through the free space and through the air guide channels.

Die durch die Erfindung erreichten Vorteile sind darin zu sehen, dass die rotierende Masse auf ein Minimum reduziert ist und dadurch eine leichte Bauweise erreicht wird, ohne die wärmetechnischen Vorteile des Standes der Technik im wesentlichen zu verlieren.The advantages achieved by the invention can be seen in the fact that the rotating mass is reduced to a minimum and a light construction is thereby achieved without essentially losing the thermal advantages of the prior art.

Vorteilhafterweise können die Ventilatorschaufeln als Radialventilatorschaufeln an einer Stirnseite des Hohlraumes am Rollenmantel angeordnet sein, so dass die Mantelinnenseite frei ist für mögliche günstige Wärmeübergangsstrukturen wie z. B. Rillen mit unterschiedlichen Tiefen und/oder schraubenförmiger Anordnung.Advantageously, the fan blades can be arranged as radial fan blades on one end face of the cavity on the roller casing, so that the inside of the casing is free for possible favorable heat transfer structures such as e.g. B. grooves with different depths and / or helical arrangement.

Ferner können die Luftkanäle an einem stationären, sich zum Rollenmantel koaxial in diesen erstreckenden Träger angeordnete Stege sein, die von einem Mantel umfasst werden und dabei strahlenförmig und mindestens im Endteil, in Strömungsrichtung gesehen, axial gestreckt auf dem Träger angeordnet sind, was den Vorteil erbringt, dass in der Strömung am Austritt aus den Kanälen kein den Unterdruck reduzierender Drall ensteht.Furthermore, the air channels can be on a stationary webs which are arranged coaxially in the roller jacket and which are encased in a jacket and are arranged radially and axially stretched on the carrier at least in the end part, as seen in the direction of flow, which provides the advantage that there is no swirl reducing the negative pressure in the flow at the outlet from the channels.

Im folgenden wird die Erfindung anhand von lediglich Ausführungswege darstellenden Zeichnungen näher erläutert.In the following, the invention is explained in more detail with the aid of drawings showing only execution routes.

Es zeigen:

  • Fig. 1 ein Längsschnitt durch die Längsachse einer Galette, entsprechend der Richtung A-A, halbschematisch dargestellt,
  • Fig. 2 ein Querschnitt durch einen Teil der Galette von Fig. l, entsprechend der Richtung B-B,
  • Fig. 3-5 je ein Querschnitt durch einen Teil der Galette von Fig. 1, entsprechend der Richtung C-C.
Show it:
  • Fig. 1 is a longitudinal section through the longitudinal axis of a godet, corresponding to the direction AA, half represented schematically,
  • 2 shows a cross section through part of the godet of FIG. 1, corresponding to the direction BB,
  • Fig. 3-5 each a cross section through part of the godet of Fig. 1, corresponding to the direction CC.

Ein stationärer Träger 1 (Fig. l) ist in einem Maschinengehäuse 2 fest angeordnet. Im Träger 1 übernehmen die Lager 3 die drehbare Lagerung eines Rollenmantels 4. Der Rollenmantel 4 umfasst einen Hohlraum 5 (Fig. 1), in welchem an einer ringförmigen Stirnseite 6 (Fig. l) radial gestreckte Ventilatorschaufeln 7 (Fig. 1 und 2) befestigt sind.A stationary carrier 1 (FIG. 1) is fixedly arranged in a machine housing 2. In the carrier 1, the bearings 3 take over the rotatable mounting of a roller shell 4. The roller shell 4 comprises a cavity 5 (FIG. 1) in which, on an annular end face 6 (FIG. 1), radially elongated fan blades 7 (FIGS. 1 and 2) are attached.

Weiter sind an einem zum Träger 1 gehörenden, sich koaxial zum Rollenmantel 4 erstreckenden Trägerarm 8 Luftkanäle 9 vorgesehen, die durch am Trägerarm 8 strahlenförmig und axial gestreckt fest angeordnete und von einem als Drehkörper ausgebildeten Mantel 10 umfasste Stege 11 (Fig. 3-5) gebildet werden. Dabei sind die Stege 11 fest mit dem Mantel 10 verbunden. Durch diesen Mantel 10 wird im Hohlraum 5 ein freier Raum von U-förmigem Querschnitt, in Umfangsrichtung gesehen, gebildet, der vom Rollenmantel 4 durch die Stirnseite 6 der Rollenmantelinnenseite 12 und einer weiteren Hohlraumstirnseite 13 begrenzt ist.Furthermore, air channels 9 are provided on a support arm 8 belonging to the support 1 and extending coaxially to the roller jacket 4, which are arranged by webs 11 (FIG. 3-5) which are fixedly arranged in a radial and axially stretched manner on the support arm 8 and are encompassed by a jacket 10. be formed. The webs 11 are firmly connected to the jacket 10. This jacket 10 forms a free space of U-shaped cross-section, seen in the circumferential direction, in the cavity 5, which is delimited by the roller jacket 4 through the end face 6 of the roller jacket inner side 12 and a further cavity end face 13.

Die Stirnseite 13 ist ein Teil des Trägers 1 und bildet mit ihrer Fortsetzung 14 und einer L-förmigen Fläche 15 am Rollenmantel 4 einen Luftspalt, der den Hohlraum 5 mit der Umgebungsluft der Galette verbindet. Der Träger 1 mit den Lagern 3, den Kanälen 9, und der Rollenmantel 4 mit den Ventilatorschaufeln 7 wird zusammen als sogenannte Galette bezeichnet.The end face 13 is part of the carrier 1 and, with its continuation 14 and an L-shaped surface 15 on the roller jacket 4, forms an air gap which connects the cavity 5 with the ambient air of the godet. The carrier 1 with the bearings 3, the channels 9, and the roller shell 4 with the fan blades 7 is collectively referred to as a so-called godet.

Bei Rotation des Rollenmantels 4 entsteht durch die Ventilatorschaufeln 7 einerseits ein Luftkreislauf mit einer Richtungskomponente in Richtung K und anderseits einer Richtungskomponente in Umlaufrichtung des Rollenmantels 4, aus der eine resultierende Strömungsrichtung K' (nicht gezeigt) gebildet wird.When the roller shell 4 rotates, the fan blades 7 on the one hand create an air circuit with a directional component in the direction K and on the other hand a directional component in the circumferential direction of the roller shell 4, from which a resulting flow direction K '(not shown) is formed.

Aus strömungstechnischen Gründen sind die Radien r vorgesehen.The radii r are provided for fluidic reasons.

Die gestreckten, radial gerichteten Ventilatorschaufeln 7 gestatten eine Umkehrung der Drehrichtung des Rollenmantels 4 ohne Verschlechterung der Strömungscharakteristik.The elongated, radially directed fan blades 7 allow the direction of rotation of the roller jacket 4 to be reversed without a deterioration in the flow characteristics.

Ebenfalls können die Ventilatorschaufeln 7 bei einer bestimmten Drehrichtung als vor- oder rückwärtsgekrümmte Ventilatorschaufeln ausgebildet werden mit der aus der Ventilatortechnik an sich bekannten prinzipiellen Veränderung der Strömungscharakteristik.Likewise, the fan blades 7 can be designed in a certain direction of rotation as forward or backward curved fan blades with the basic change in the flow characteristic known per se from fan technology.

Weiter besteht die Möglichkeit den Trägerarm 8, wie in Fig. 1 gezeigt, mit einer Bohrung 16 und einem Druckluftanschluss 17 zu versehen, um den Hohlraum 5 mit Druckluft zur Bildung eines kleinen Ueberdrucks zu versorgen und damit eine Verschmutzung durch z.B. Appreturdämpfe zu vermeiden. Das dadurch im Hohlraum 5 überschüssige kleine Luftvolumen entweicht durch den Luftspalt entlang der L-förmigen Fläche 15.There is also the possibility of providing the support arm 8, as shown in FIG. 1, with a bore 16 and a compressed air connection 17 in order to supply the cavity 5 with compressed air to form a small excess pressure and thus contamination by e.g. Avoid finishing fumes. The small air volume which is thereby excess in the cavity 5 escapes through the air gap along the L-shaped surface 15.

Die Fig. 3-5 zeigen je Variationen von Heizelementen die zusammen mit den Stegen 11 und evt. zusammen mit dem Mantel 10 die Heizvorrichtungen bilden.3-5 each show variations of heating elements which together with the webs 11 and possibly together with the jacket 10 form the heating devices.

Beispielsweise sind wie in Figur 3 gezeigt die Heizelemente in den Kanälen 9 vorgesehene Heizmatten 18, die umfänglich am Mantel 10 und beidseits der Stege 11, d.h. umfänglich in den Kanälen 9 anliegend angeordnet sind.For example, as shown in Figure 3, the heating elements in the channels 9 are provided heating mats 18, which are circumferentially on the jacket 10 and on both sides of the webs 11, i.e. are arranged circumferentially in the channels 9.

Ebenso können die Heizelemente, wie in Figur 5 gezeigt, in den Stegen 11 vorgesehene Heizstäbe 20 sein. Die Stege 11 werden, um dies zu ermöglichen, wie in den genannten Figuren gezeigt, entsprechend geformt.Likewise, as shown in FIG. 5, the heating elements can be heating rods 20 provided in the webs 11. To enable this, the webs 11 are shaped accordingly, as shown in the figures mentioned.

Weiter können Heizspiralen 19 (Fig. 4) in den Kanälen 9 als Heizelemente vorgesehen sein. Der Rollenmantel 4 bildet zusammen mit einer Stirnwand 21 und einer Welle 22 eine in den Lagern 3 erkennbare Einheit.Furthermore, heating spirals 19 (FIG. 4) can be provided in the channels 9 as heating elements. The roller jacket 4 forms, together with an end wall 21 and a shaft 22, a unit which can be seen in the bearings 3.

Um die Wärme intensiver an die Rollenmantelinnenseite abzugeben, kann diese mit Rillen (nicht gezeigt) versehen werden. Die Rillentiefe kann dabei im umgekehrten Verhältnis zur abnehmenden Temperatur der strömenden Luft zunehmen. Ebenfalls können die Rillen axial gerichtet oder schraubenförmig oder gekreuzt schraubenförmig angeordnet sein.In order to give off the heat more intensively to the inside of the roll shell, it can be provided with grooves (not shown). The groove depth can increase in inverse proportion to the decreasing temperature of the flowing air. The grooves can also be arranged axially or helically or crossed helically.

Claims (19)

1. Verfahren zum Heizen einer Galette, dadurch gekennzeichnet, dass die Galette mittels eines gasförmigen Mediums beheizt wird, dass das Medium innerhalb der Galette in einem im wesentlichen geschlossenen Kreislauf (K) an einer Heizvorrichtung (9, 18,19,20)und an der Innenwand (12) eines zu beheizenden, rotierenden Rollenmantels (4) vorbeigeführt wird.1. A method for heating a godet, characterized in that the godet is heated by means of a gaseous medium, that the medium within the godet in a substantially closed circuit (K) on a heating device (9, 18, 19, 20) and on the inner wall (12) of a rotating roller jacket (4) to be heated is guided past. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Kreislauf (K) mittels einer durch die Rotation des Rollenmantels (4) erzeugten radialen Beschleunigung des Mediums durch die Galette selbst erzeugt wird.2. The method according to claim 1, characterized in that the circuit (K) is generated by means of a radial acceleration of the medium generated by the rotation of the roller shell (4) by the godet itself. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Kreislauf (K) mittels der Heizvorrichtung (9,18,19,20) selbst gelenkt wird.3. The method according to claim 1, characterized in that the circuit (K) itself is directed by means of the heating device (9, 18, 19, 20). 4. Heizbare Galette mit einem zu beheizenden, einen Hohlraum (5) bildenden, drehbaren Rollenmantel (4) sowie mit einer Heizvorrichtung (9,18,19,20) im Hohlraum (5) des Rollenmantels (4), dadurch gekennzeichnet, dass die Heizvorrichtung (9,18,19,20) derart mit Luftleitkanälen (9) versehen ist, dass an beiden Stirnseiten (6,13) des Hohlraumes (5) sowie zwischen der Rollenmantelinnenseite (12) und den Luftleitkanälen (9) ein freier Raum von U-förmigem Querschnitt, in Umfangsrichtung gesehen, gebildet wird, sowie dass der Rollenmantel (4) in diesem freien Raum derart mit Ventilatorschaufeln (7) versehen ist, dass bei Rotation des Rollenmantels (4) die Luft einen durch den freien Raum und durch die Luftleitkanäle (9) strömenden Kreislauf (K) bildet.4. Heatable godet with a rotatable roller jacket (4) to be heated, forming a cavity (5), and with a heating device (9, 18, 19, 20) in the cavity (5) of the roller jacket (4), characterized in that the The heating device (9, 18, 19, 20) is provided with air guide channels (9) such that there is a free space on both end faces (6, 13) of the cavity (5) and between the inside of the roller shell (12) and the air guide channels (9) U-shaped cross-section, seen in the circumferential direction, is formed, and that the roller jacket (4) ver in this free space with fan blades (7) it can be seen that when the roller jacket (4) rotates, the air forms a circuit (K) flowing through the free space and through the air guiding channels (9). 5. Heizbare Galette nach Anspruch 4, dadurch gekennzeichnet, dass die Ventilatorschaufeln (7) als Radialventilatorschaufeln an einer Stirnseite (6) des Hohlraumes (5) angeordnet sind.5. Heatable godet according to claim 4, characterized in that the fan blades (7) are arranged as radial fan blades on one end face (6) of the cavity (5). 6. Heizbare Galette nach Anspruch 5, dadurch gekennzeichnet, dass die Ventilatorschaufeln (7) als radial gestreckte Schaufeln vorgesehen sind.6. Heatable godet according to claim 5, characterized in that the fan blades (7) are provided as radially elongated blades. 7. Heizbare Galette nach Anspruch 5, dadurch gekennzeichnet, dass die Ventilatorschaufeln (7) als sogenannt vorwärts gebogene Radialventilatorschaufeln vorgesehen sind.7. Heatable godet according to claim 5, characterized in that the fan blades (7) are provided as so-called forward-curved radial fan blades. 8. Heizbare Galette nach Anspruch 5, dadurch gekennzeichnet, dass die Ventilatorschaufeln (7) als sogenannt rückwärts gebogene Radialventilatorschaufeln vorgesehen sind.8. Heatable godet according to claim 5, characterized in that the fan blades (7) are provided as so-called backward-curved radial fan blades. 9. Heizbare Galette nach Anspruch 4, dadurch gekennzeichnet, dass die Luftkanäle (9) durch Stege (11) gebildet sind, die von einem Mantel (10) erfasst werden, wobei die Stege (11) an einem stationären, sich zum Rollenmantel (4) koaxial in diesen erstrekkenden Trägerarm (8) angeordnet sind.9. Heatable godet according to claim 4, characterized in that the air channels (9) are formed by webs (11) which are covered by a jacket (10), the webs (11) on a stationary, to the roller jacket (4th ) are arranged coaxially in this extending support arm (8). 10. Heizbare Galette nach Anspruch 9, dadurch gekennzeichnet, dass die Stege (11) strahlenförmig und mindestens im Endteil, in Strömungsrichtung gesehen, axial gestreckt auf dem Trägerarm (8) angeordnet sind.10. Heatable godet according to claim 9, characterized in that the webs (11) in the form of a beam and at least in the end part, in the flow direction see, axially stretched are arranged on the support arm (8). ll. Heizbare Galette nach Anspruch 4, dadurch gekennzeichnet, dass die Rollenmantelinnenseite (12) mit Rillen versehen ist.ll. Heatable godet according to claim 4, characterized in that the inside of the roller casing (12) is provided with grooves. 12. Heizbare Galette nach Anspruch 11, dadurch gekennzeichnet, dass die Rillentiefe im umgekehrten Verhältnis zur abnehmenden Temperatur der strömenden Luft zunimmt.12. Heatable godet according to claim 11, characterized in that the groove depth increases in inverse proportion to the decreasing temperature of the flowing air. 13. Heizbare Galette nach Anspruch 11, dadurch gekennzeichnet, dass die Rillen axial gerichtet sind.13. Heated godet according to claim 11, characterized in that the grooves are axially directed. 14. Heizbare Galette nach Anspruch 11, dadurch gekennzeichnet, dass die Rillen schraubenförmig angeordnet sind.14. Heated godet according to claim 11, characterized in that the grooves are arranged helically. 15. Heizbare Galette nach Anspruch 11, dadurch gekennzeichnet, dass die Rillen gekreuzt schraubenförmig angeordnet sind.15. Heatable godet according to claim 11, characterized in that the grooves are arranged in a crossed helical manner. 16. Heizbare Galette nach Anspruch 9, dadurch gekennzeichnet, dass der Mantel (10) an seinem Umfang als Drehkörper ausgebildet ist.16. Heatable godet according to claim 9, characterized in that the jacket (10) is formed on its circumference as a rotating body. 17. Heizbare Galette nach Anspruch 4, dadurch gekennzeichnet, dass die Heizvorrichtung Heizelemente in Form von in den Stegen (11) eingelassenen Heizstäben (20) umfasst.17. Heatable godet according to claim 4, characterized in that the heating device comprises heating elements in the form of heating rods (20) embedded in the webs (11). 18. Heizbare Galette nach Anspruch 4, dadurch gekennzeichnet, dass die Heizvorrichtung Heizelemente in Form von in den Kanälen (9) vorgesehenen Heizmatten (18) umfasst.18. Heated godet according to claim 4, characterized shows that the heating device comprises heating elements in the form of heating mats (18) provided in the channels (9). 19. Heizbare Galette nach Anspruch 4, dadurch gekennzeichnet, dass die Heizvorrichtung Heizelemente in Form von in den Kanälen vorgesehenen Heizspiralen (19) umfasst.19. Heatable godet according to claim 4, characterized in that the heating device comprises heating elements in the form of heating spirals (19) provided in the channels.
EP82104014A 1981-06-15 1982-05-08 Process for heating a roller, and heated roller Expired EP0068119B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH391481 1981-06-15
CH3914/81 1981-06-15

Publications (3)

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EP0068119A2 true EP0068119A2 (en) 1983-01-05
EP0068119A3 EP0068119A3 (en) 1983-05-18
EP0068119B1 EP0068119B1 (en) 1986-01-15

Family

ID=4266210

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Application Number Title Priority Date Filing Date
EP82104014A Expired EP0068119B1 (en) 1981-06-15 1982-05-08 Process for heating a roller, and heated roller

Country Status (5)

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US (2) US4443689A (en)
EP (1) EP0068119B1 (en)
JP (1) JPS57208312A (en)
DE (1) DE3268502D1 (en)
IN (1) IN158418B (en)

Cited By (1)

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DE19610763A1 (en) * 1996-03-19 1997-09-25 Zinser Textilmaschinen Gmbh Heated godet for heating synthetic threads

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Publication number Priority date Publication date Assignee Title
US5142784A (en) * 1990-05-01 1992-09-01 F.H. Maloney Company Method for making a roller assembly for grain shellers
KR0148507B1 (en) * 1994-10-07 1998-12-01 김광호 Heater roller for fixing electronic photo device
US5983993A (en) * 1996-08-30 1999-11-16 International Paper Company High production chill roll
US5920961A (en) * 1997-11-10 1999-07-13 John D. Hollingsworth On Wheels, Inc. Ventilating carding roll
DE102005029767A1 (en) * 2005-06-24 2007-01-04 TRüTZSCHLER GMBH & CO. KG Device on a spinning preparation machine, in particular carding machine, carding machine, cleaner o. The like., With a cooling system
DE102007015826A1 (en) * 2007-03-30 2008-10-02 TRüTZSCHLER GMBH & CO. KG Device on a textile machine, in particular spinning preparation machine, for cooling of heat-emitting electrical components
JP2015128465A (en) * 2014-01-06 2015-07-16 日本電産株式会社 dryer
JP2015128466A (en) * 2014-01-06 2015-07-16 日本電産株式会社 dryer

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CH456836A (en) * 1966-12-30 1968-05-31 Barmag Barmer Maschf Electrically heated galette
DE1804777A1 (en) * 1968-10-24 1970-05-27 Barmag Barmer Maschf Heizglette with the same temperature status

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CH456836A (en) * 1966-12-30 1968-05-31 Barmag Barmer Maschf Electrically heated galette
DE1804777A1 (en) * 1968-10-24 1970-05-27 Barmag Barmer Maschf Heizglette with the same temperature status

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610763A1 (en) * 1996-03-19 1997-09-25 Zinser Textilmaschinen Gmbh Heated godet for heating synthetic threads
US5902503A (en) * 1996-03-19 1999-05-11 Zinser Textilmaschinen Gmbh Heated godet for the heating of synthetic yarn

Also Published As

Publication number Publication date
EP0068119B1 (en) 1986-01-15
JPS57208312A (en) 1982-12-21
EP0068119A3 (en) 1983-05-18
US4443689A (en) 1984-04-17
DE3268502D1 (en) 1986-02-27
IN158418B (en) 1986-11-15
US4497626A (en) 1985-02-05

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