EP0332840A1 - Bed for ironing machines - Google Patents

Bed for ironing machines Download PDF

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Publication number
EP0332840A1
EP0332840A1 EP89102076A EP89102076A EP0332840A1 EP 0332840 A1 EP0332840 A1 EP 0332840A1 EP 89102076 A EP89102076 A EP 89102076A EP 89102076 A EP89102076 A EP 89102076A EP 0332840 A1 EP0332840 A1 EP 0332840A1
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Prior art keywords
trough
shortage
heating
plate
heating medium
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EP89102076A
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German (de)
French (fr)
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EP0332840B1 (en
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Waldemar Hadem
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D06F67/08—Beds; Heating arrangements therefor

Definitions

  • the invention relates to a mangle trough for a trough mangle equipped with at least one mangle roller, in particular mangle trough for large trough mangles, with a trough plate designed as a half-shell with a mangle surface facing the mangle roller and with a heatable outer surface.
  • Shortage troughs of this type are known for flat ironing ironers with a larger shortage roller diameter. Material with a thickness of approximately 15 to 20 mm is used for the trough plates of these known constructions. Individual heating dishes are arranged on the outer contour of the trough plate, which overlap like scales and are formed by curved sheet metal strips.
  • This object is achieved in that at a distance from the outer surface of the trough plate is designed as a half-shell jacket, which essentially covers the outer surface of the trough plate and is firmly connected to this outer surface on all sides, that the double jacket thus formed connections for the supply and discharge of Has heating medium and that guide webs for the heating medium run in the double jacket.
  • These measures give the mangle trough such a high degree of internal rigidity that it is possible to significantly reduce the material thickness of the trough plate from usually 15 to 20 mm.
  • the heat transfer from the heated outer surface to the inner surface of the mangle trough facing the mangle roller is considerably improved, which leads to significant energy savings with respect to the heating medium.
  • the guide webs are firmly connected to the outer surface of the trough plate and that the jacket plate bears tightly against the guide webs.
  • This has the advantage that the guide bars only have to be attached to the outer surface of the trough plate by tack welding. Long and precise weld seams of high quality as with the well-known heating shell construction common, can be avoided.
  • the jacket plate is merely provided with a weld seam along its outer circumference, which firmly connects the trough plate, the head plates and the jacket plate.
  • the jacket sheet fits tightly against the guide bars without being fastened with them.
  • the guide webs run longitudinally to the trough axis and are arranged at approximately the same radial distance from one another on the outer surface of the trough plate, so that the heating medium introduced into the double jacket heats sectoral surfaces along the trough axis, which results in a more uniform Heat exposure of the ironer leads.
  • heating chambers are formed in the double jacket, which are interconnected with at least one flow opening for the heating medium.
  • At least one supply line for the heating medium is guided approximately centrally into the radially outer heating chambers, so that the heating medium can be divided approximately equally between the two halves of the shortage trough.
  • the flow openings connecting the heating chambers - seen in the longitudinal direction of the trough axis and starting with the radially outer heating chambers - are arranged in the region of the chamber front sides and that the flow openings of the directly adjacent heating chambers are arranged in the central region of the chamber longitudinal side and that in this alternating sequence the flow openings connect the subsequent heating chambers.
  • the heating medium introduced into the double jacket is thus first divided into the two halves of the mangle trough in the outer heating chamber, merged and mixed in the following and adjacent heating chamber, divided in half again in the subsequent chamber next, etc., so that this can be seen through this hot steam duct extremely uniform heating of the inner surface of the mangle trough is achieved within the double jacket.
  • the heating chamber arranged in the region of the trough sole is connected to the heating chambers adjacent on both sides via flow openings which are arranged in the end region of these chambers.
  • the heating chamber arranged in the region of the trough sole is connected via passage openings to a collecting pan for the condensate of the superheated steam as the heating medium. The same applies to all other heating media.
  • rib-shaped reinforcing elements are arranged at a distance from one another, the inner contour of which is adapted to the outer contour of the double jacket, which makes a very torsionally rigid construction is guaranteed for the mangle trough.
  • the mangle trough 1 consists of a trough plate 2 formed into a half-shell with a thickness of approximately 15 mm, with a milled and polished mangle surface 3 facing the mangle roller, not shown, and with an outer surface 4.
  • a jacket plate 5 arranged, which almost covers the outer surface 4 of the trough plate 2 and is firmly connected to it, with the aid of continuous weld seams 6.
  • the double jacket 7 formed in this way has two feed connections 8, 9 for a heating medium and in the region of the trough sole 10 a collecting tray 11 for the discharge of the condensate or the heating medium with the aid of a discharge line 12.
  • guide webs 13 arranged for the heating medium.
  • the guide webs 13 are fastened to the outer surface 4 of the trough plate 2 by tack welding.
  • the jacket plate 5 is supported on the outer edges 14 of the guide webs 13 in such a way that a pressure-tight contact is established at this connection point between the guide web 13 and the jacket plate 5.
  • the curvature of the cladding sheet 5 therefore largely corresponds to the curvature of the trough sheet 2.
  • a supply line 15 is laid, which in turn has a connecting flange 16 for connection to an energy supply line, not shown.
  • the discharge line 12 opening out of the collecting tray 11 likewise has a flange 11 for the purpose of connection to a collecting line, not shown.
  • rib-shaped reinforcing elements 20 are arranged on the double jacket 7 or on the outer jacket plate 5, which are spaced apart and whose inner contour is adapted to the outer contour of the double jacket 7 is.
  • FIG. 2 it can be seen that with the help of the guide webs 13 in the double jacket 7 heating chambers 21, 22, 23, 24 are formed, which are connected to each other with flow openings 25, 26 for the heating medium.
  • the individual heating chambers likewise extend in the direction of the trough axis 19.
  • the flow opening 25 connecting the heating chamber 21 to the heating chamber 22 is arranged on the end face 27 of the chamber; the flow opening 26 connecting the heating chamber 22 and the heating chamber 23 is arranged in the central region 28 of the longitudinal side 29 of the chamber.
  • the heating chamber 24 arranged in the region of the trough sole 10 is connected to the two adjacent heating chambers 23 via flow openings 25, which are located are again in the chamber end region 27.
  • the elongated collecting bowl 11 can be seen, which is connected to the heating chamber 24 via passage openings 30.
  • the condensate or heating medium accumulated in the heating chamber 24 enters the collecting tray 11 via these through openings and flows through the discharge line 12 into the collecting line, not shown in any more detail.
  • the reinforcement elements 20 are arranged at a distance from one another, which extend at right angles to the guide webs 13 running parallel to the trough axis 19.
  • the heating trough 1 is heated in such a way that the heating medium with the appropriate temperature and operating pressure is fed via the feed line 15 to the two feed connections 8, 9 and approximately in the central region 28 of the longitudinal chamber side 29 into the radially outer heating chamber 21 occurs.
  • the heating medium flows on both sides to the front side of the chamber and there it enters the adjacent heating chamber 22 through the flow openings 25.
  • the heating medium then flows from the outside to the center of the chamber. The portions of the heating medium are combined and flow through the flow opening 27 into the next adjacent heating chamber 23 and divide up again in this heating chamber.
  • the partial quantities of the heating medium flow from the central region to the chamber end face 27 and enter through the flow openings 25 therein Heating chamber 24, which is arranged on the trough sole 10.
  • the condensate or heating medium collects in this heating chamber 24 after the heating medium has given off its heat to the trough plate 2.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

To produce a mangle trough (1) for large trough-type mangles with excellent dimensional rigidity and a high dimensional accuracy, it is proposed to design the trough plate (2) as a half-shell, with a mangling surface (3) facing the mangle roller and with a heatable outer surface (4), there being arranged at a distance from the outer surface (4) of the trough plate (2) a jacket plate (5) which is designed as a half-shell and which essentially covers the outer surface (4) of the trough plate and is connected firmly to this outer surface (4) on all sides, and the double jacket (7) thus formed has connections (8, 9) for the supply and removal (11, 12) of a heating medium, and guide webs (13) for the heating medium extend in the double jacket (7), in order, among other things, to improve the heat transmission. <IMAGE>

Description

Die Erfindung betrifft eine Mangelmulde für eine mit minde­stens einer Mangelwalze ausgerüsteten Muldenmangel insbe­sondere Mangelmulde für Großmuldenmangeln, mit einem als Halbschale ausgebildeten Muldenblech mit einer der Mangel­walze zugewandten Mangelfläche und mit einer beheizbaren Außenfläche.The invention relates to a mangle trough for a trough mangle equipped with at least one mangle roller, in particular mangle trough for large trough mangles, with a trough plate designed as a half-shell with a mangle surface facing the mangle roller and with a heatable outer surface.

Mangelmulden dieser Art sind für Muldenmangeln mit größerem Mangelwalzendurchmesser bekannt. Für die Muldenbleche dieser bekannten Konstruktionen wird Material mit einer Stärke von ca. 15 bis 20 mm verwendet. An der Außenkontur des Mulden­blechs sind einzelne Heizschalen angeordnet, die sich schup­penartig überlappen und durch gewölbte Blechstreifen gebil­det werden.Shortage troughs of this type are known for flat ironing ironers with a larger shortage roller diameter. Material with a thickness of approximately 15 to 20 mm is used for the trough plates of these known constructions. Individual heating dishes are arranged on the outer contour of the trough plate, which overlap like scales and are formed by curved sheet metal strips.

Um nun bei Großmuldenmangeln eine genügend große Stabilität der Mangelmulde zu garantieren, ist es aus dem DE-GM 80 31 711 bekannt, im Längskantenbereich der Muldenbleche kanten­parallele, annähernd senkrecht verlaufende Versteifungslei­sten vorzusehen, die mit den bis an ihre Unterseite hochge­zogenen Zwischenblechen bündig abschließen und verschweißt sind. Diese Konstruktion hat sich wegen ihres geringen Mate­rialaufwandes und ihres damit verbundenen geringen Gewichts bewährt.In order to guarantee a sufficiently large stability of the mangle trough in the case of large trough defects, it is known from DE-GM 80 31 711 to provide edge-parallel, approximately perpendicular stiffening strips in the longitudinal edge region of the trough plates, which are flush with the intermediate plates that are pulled up to their underside and welded are. This construction has proven itself because of its low cost of materials and the associated low weight.

Bei diesem Stand der Technik ist es die Aufgabe der vorlie­genden Erfindung, die Konstruktion einer Mangelmulde der eingangs genannten Gattung insbesondere für Großmuldenman­geln mit einem Walzendurchmesser größer als 800 mm in der Weise zu verbessern, indem die Materialstärke für das Mul­denblech verringert wird bei gleichzeitiger Verbesserung der Formstabilität und der Maßgenauigkeit der Mangelmulde, und indem die Herstellungskosten für die Mangelmulde gesenkt werden bei gleichzeitiger Verbesserung der Wärmeübertragung.In this prior art, it is the object of the present invention to improve the construction of a mangle trough of the type mentioned in particular for large trough mangles with a roller diameter greater than 800 mm in such a way that the material thickness for the trough plate is reduced while at the same time improving the dimensional stability and the dimensional accuracy of the lack well, and by reducing the manufacturing costs for the lack well while improving the heat transfer.

Diese Aufgabe wird dadurch gelöst, daß mit Abstand zur Au­ßenfläche des Muldenblechs ein als Halbschale ausgebildetes Mantelblech angeordnet ist, welches die Außenfläche des Muldenblechs im wesentlichen überdeckt und mit dieser Außen­fläche allseitig fest verbunden ist, daß der so gebildete Doppelmantel Anschlüsse für die Zuführung und Abführung des Heizmediums aufweist und daß in dem Doppelmantel Leitstege für das Heizmedium verlaufen. Durch diese Maßnahmen erhält die Mangelmulde eine so hohe innere Steifigkeit, daß es möglich ist, die Materialstärke des Muldenblechs von übli­cherweise 15 bis 20 mm deutlich zu reduzieren. Darüber hin­aus wird der Wärmeübergang von der beheizten Außenfläche auf die der Mangelwalze zugewandte Innenfläche der Mangelmulde erheblich verbessert, was zu einer bedeutenden Energieein­sparung bezüglich des Heizmediums führt.This object is achieved in that at a distance from the outer surface of the trough plate is designed as a half-shell jacket, which essentially covers the outer surface of the trough plate and is firmly connected to this outer surface on all sides, that the double jacket thus formed connections for the supply and discharge of Has heating medium and that guide webs for the heating medium run in the double jacket. These measures give the mangle trough such a high degree of internal rigidity that it is possible to significantly reduce the material thickness of the trough plate from usually 15 to 20 mm. In addition, the heat transfer from the heated outer surface to the inner surface of the mangle trough facing the mangle roller is considerably improved, which leads to significant energy savings with respect to the heating medium.

In Ausgestaltung der Erfindung wird vorgeschlagen, daß die Leitstege mit der Außenfläche des Muldenblechs fest verbun­den sind und daß das Mantelblech an den Leitstegen span­nungsdicht anliegt. Dies hat den Vorteil, daß die Leitstege an der Außenfläche des Muldenblechs lediglich durch Heft­schweißung befestigt werden müssen. Lange und genau zu legende Schweißnähte hoher Güte wie bei der bekannten Heiz­ schalenkonstruktion üblich, können vermieden werden. Das Mantelblech wird lediglich entlang seines Außenumfangs mit einer Schweißnaht versehen, die das Muldenblech, die Kopf­bleche und das Mantelblech fest verbindet. Im übrigen legt sich das Mantelblech aufgrund seiner Formgebung als Halb­schale dicht gegen die Leitstege an, ohne mit diesen befe­stigt zu werden. Die Herstellungskosten für eine Mangelmulde können durch diese Maßnahmen zusätzlich gesenkt werden. Zweckmäßig ist, daß die Krümmung des Mantelblechs weitgehend der Krümmung des Muldenblechs entspricht, wodurch die Form­stabilität und die Maßgenauigkeit der Mangelmulde nachhaltig verbessert wird.In an embodiment of the invention, it is proposed that the guide webs are firmly connected to the outer surface of the trough plate and that the jacket plate bears tightly against the guide webs. This has the advantage that the guide bars only have to be attached to the outer surface of the trough plate by tack welding. Long and precise weld seams of high quality as with the well-known heating shell construction common, can be avoided. The jacket plate is merely provided with a weld seam along its outer circumference, which firmly connects the trough plate, the head plates and the jacket plate. In addition, due to its shape as a half-shell, the jacket sheet fits tightly against the guide bars without being fastened with them. These measures can additionally reduce the manufacturing costs for a trough. It is expedient that the curvature of the cladding sheet largely corresponds to the curvature of the trough sheet, whereby the dimensional stability and the dimensional accuracy of the lack trough is sustainably improved.

In einer weiteren Ausgestaltung der Erfindung ist vorgese­hen, daß die Leitstege längs zur Muldenachse verlaufen und mit etwa gleichem radialen Abstand zueinander auf der Außen­fläche des Muldenblechs angeordnet sind, so daß das in den Doppelmantel eingeleitete Heizmedium sektorale Flächen ent­lang der Muldenachse beheizt, was zu einer gleichmäßigeren Wärmebeaufschlagung der Mangelmulde führt. Zweckmäßig ist, daß mit Hilfe der Leitstege im Doppelmantel Heizkammern gebildet sind, die untereinander mit mindestens einer Strö­mungsöffnung für das Heizmedium verbunden sind. Durch diese Maßnahmen wird die Beheizung der Muldeninnenfläche weiter verbessert, da durch entsprechende Anordnung der Strömungs­öffnungen in den Heizkammern dem Heizmedium ein mäanderband­förmiger Strömungsverlauf in dem Doppelmantel und entlang der Muldenachse aufgezwungen werden kann.In a further embodiment of the invention it is provided that the guide webs run longitudinally to the trough axis and are arranged at approximately the same radial distance from one another on the outer surface of the trough plate, so that the heating medium introduced into the double jacket heats sectoral surfaces along the trough axis, which results in a more uniform Heat exposure of the ironer leads. It is expedient that with the aid of the guide webs, heating chambers are formed in the double jacket, which are interconnected with at least one flow opening for the heating medium. These measures further improve the heating of the inner surface of the trough, since a corresponding arrangement of the flow openings in the heating chambers allows the heating medium to be forced onto a meandering flow in the double jacket and along the trough axis.

In bevorzugter Ausgestaltung der Erfindung ist vorgesehen, daß wenigstens eine Zuleitung für das Heizmedium etwa mittig in die jeweils radial außen liegenden Heizkammern geführt ist, so daß das Heizmedium etwa zu gleichen Teilmengen auf die beiden Hälften der Mangelmulde aufgeteilt werden kann.In a preferred embodiment of the invention, it is provided that at least one supply line for the heating medium is guided approximately centrally into the radially outer heating chambers, so that the heating medium can be divided approximately equally between the two halves of the shortage trough.

Von besonderem Vorteil ist dabei, daß die die Heizkammern verbindenden Strömungsöffnungen - in Längsrichtung der Mul­denachse gesehen und beginnend mit den radial außen liegen­den Heizkammern - im Bereich der Kammerstirnseiten angeord­net sind und daß die Strömungsöffnungen der direkt benach­barten Heizkammern im mittleren Bereich der Kammerlängsseite angeordnet sind und daß in dieser abwechselnden Folge die Strömungsöffnungen die nachfolgenden Heizkammern verbinden. Das in den Doppelmantel eingeführte Heizmedium wird also zunächst in der außen liegenden Heizkammer auf die beiden Hälften der Mangelmulde aufgeteilt, in der folgenden und benachbarten Heizkammer zusammengeführt und vermischt, in der dann folgenden benachbarten Kammer wieder hälftig aufge­teilt usw., so daß erkennbar durch diese Heißdampfführung innerhalb des Doppelmantels eine überaus gleichmäßige Behei­zung der Innenfläche der Mangelmulde erzielt wird.It is particularly advantageous that the flow openings connecting the heating chambers - seen in the longitudinal direction of the trough axis and starting with the radially outer heating chambers - are arranged in the region of the chamber front sides and that the flow openings of the directly adjacent heating chambers are arranged in the central region of the chamber longitudinal side and that in this alternating sequence the flow openings connect the subsequent heating chambers. The heating medium introduced into the double jacket is thus first divided into the two halves of the mangle trough in the outer heating chamber, merged and mixed in the following and adjacent heating chamber, divided in half again in the subsequent chamber next, etc., so that this can be seen through this hot steam duct extremely uniform heating of the inner surface of the mangle trough is achieved within the double jacket.

Als besonders vorteilhaft hat es sich erwiesen, wenn gemäß einem weiteren Vorschlag der Erfindung die im Bereich der Muldensohle angeordnete Heizkammer mit den zu beiden Seiten benachbarten Heizkammern über Strömungsöffnungen in Verbin­dung steht, die im Stirnbereich dieser Kammern angeordnet sind. Hierdurch ergibt sich eine weitere Verbesserung der Wärmverteilung auf die gesamte wirksame Innenfläche der Mangelmulde, da die Teilmengen des Heizmediums in der un­tersten Heizkammer zusammengeführt werden und anschließend z.B. bei Heißdampfbeheizung als Kondensat aus dem Doppel­mantel abgeführt werden. Zweckmäßig ist dabei, daß die im Bereich der Muldensohle angeordnete Heizkammer über Durch­trittsöffnungen mit einer Sammelschale für das Kondensat des Heißdampfes als Heizmedium in Verbindung steht. Gleiches gilt auch für alle anderen Heizmedien.It has proven to be particularly advantageous if, according to a further proposal of the invention, the heating chamber arranged in the region of the trough sole is connected to the heating chambers adjacent on both sides via flow openings which are arranged in the end region of these chambers. This results in a further improvement in the heat distribution over the entire effective inner surface of the mangle trough, since the partial quantities of the heating medium are brought together in the lowermost heating chamber and are subsequently removed as condensate from the double jacket, for example in the case of hot steam heating. It is expedient here that the heating chamber arranged in the region of the trough sole is connected via passage openings to a collecting pan for the condensate of the superheated steam as the heating medium. The same applies to all other heating media.

Zweckmäßigerweise sind zur weiteren Formstabilisierung der Mangelmulde gemäß einer weiterbildenden Ausgestaltung der Erfindung am äußeren Doppelmantel der Mangelmulde in der Radialebene und im wesentlichen rechtwinklig zu den in Achs­richtung verlaufenden Leitstegen rippenförmige Verstärkungs­elemente mit Abstand zueinander angeordnet, deren Innenkon­tur der Außenkontur des Doppelmantels angepaßt ist, wodurch eine sehr verwindungssteife Konstruktion für die Mangelmulde gewährleistet ist.Advantageously, in order to further stabilize the shape of the trough, according to a further development of the invention, on the outer double jacket of the trough in the radial plane and essentially at right angles to the guide webs running in the axial direction, rib-shaped reinforcing elements are arranged at a distance from one another, the inner contour of which is adapted to the outer contour of the double jacket, which makes a very torsionally rigid construction is guaranteed for the mangle trough.

Die Erfindung wird anhand eines Ausführungsbeispieles für eine Mangelmulde näher erläutert. Es zeigen.

  • Figur 1 den konstruktiven Aufbau der Mangelmulde im Schnitt, und
  • Figur 2 eine Ansicht der Mangelmulde in Richtung des Pfei­les X, mit in Achsrichtung der Mulde verlaufenden Leitstegen und angedeuteter Strömungsrichtung für das Heizmedium, in verkleinerter Darstellung.
The invention is explained in more detail using an exemplary embodiment for a shortage trough. Show it.
  • Figure 1 shows the construction of the mangle trough on average, and
  • Figure 2 is a view of the mangle trough in the direction of arrow X, with guide webs running in the axial direction of the trough and indicated direction of flow for the heating medium, in a reduced representation.

Gemäß Fig. 1 besteht die Mangelmulde 1 aus einem zu einer Halbschale ausgeformten Muldenblech 2 von etwa 15 mm Dicke mit einer zu der nicht näher dargestellten Mangelwalze zuge­wandten geschliffenen und polierten Mangelfläche 3 und mit einer Außenfläche 4. Mit Abstand zu dem Muldenblech 2 ist ein Mantelblech 5 angeordnet, welches die Außenfläche 4 des Muldenblechs 2 nahezu überdeckt und mit dieser fest verbun­den ist und zwar mit Hilfe von durchgehenden Schweißnähten 6. Der auf diese Weise gebildete Doppelmantel 7 weist zwei Zuführungsanschlüsse 8, 9 auf für ein Heizmedium und im Bereich der Muldensohle 10 eine Sammelschale 11 für die Abführung des Kondensats oder des Heizmediums mit Hilfe einer Ableitung 12. In dem Doppelmantel 7 sind Leitstege 13 für das Heizmedium angeordnet. Die Leitstege 13 sind auf der Außenfläche 4 des Muldenblechs 2 durch Heftschweißung befe­stigt. Auf den Außenkanten 14 der Leitstege 13 stützt sich das Mantelblech 5 so ab, daß sich an dieser Verbindungsstel­le zwischen Leitsteg 13 und Mantelblech 5 ein druckdichter Kontakt einstellt. Die Krümmung des Mantelblechs 5 ent­spricht deshalb weitgehend der Krümmung des Muldenblechs 2. Zu den Zuführungsanschlüssen 8, 9 für das Heizmedium ist eine Zuführungsleitung 15 verlegt, die ihrerseits über einen Anschlußflansch 16 verfügt zur Verbindung mit einer nicht näher dargestellten Energieversorgungsleitung. Die aus der Sammelschale 11 ausmündende Ableitung 12 weist ebenfalls einen Flansch 11 auf zwecks Verbindung mit einer nicht dar­gestellten Sammelableitung. In der Radialebene 18 der Man­gelmulde 1 und im wesentlichen rechtwinklig zu den in Rich­tung der Muldenachse 19 verlaufenden Leitstegen 13 sind am Doppelmantel 7 bzw. am äußeren Mantelblech 5 rippenförmige Verstärkungselemente 20 angeordnet, die mit Abstand zuein­ander stehen und deren Innenkontur der Außenkontur des Dop­pelmantels 7 angepaßt ist.1, the mangle trough 1 consists of a trough plate 2 formed into a half-shell with a thickness of approximately 15 mm, with a milled and polished mangle surface 3 facing the mangle roller, not shown, and with an outer surface 4. At a distance from the trough plate 2 is a jacket plate 5 arranged, which almost covers the outer surface 4 of the trough plate 2 and is firmly connected to it, with the aid of continuous weld seams 6. The double jacket 7 formed in this way has two feed connections 8, 9 for a heating medium and in the region of the trough sole 10 a collecting tray 11 for the discharge of the condensate or the heating medium with the aid of a discharge line 12. In the double jacket 7 there are guide webs 13 arranged for the heating medium. The guide webs 13 are fastened to the outer surface 4 of the trough plate 2 by tack welding. The jacket plate 5 is supported on the outer edges 14 of the guide webs 13 in such a way that a pressure-tight contact is established at this connection point between the guide web 13 and the jacket plate 5. The curvature of the cladding sheet 5 therefore largely corresponds to the curvature of the trough sheet 2. To the supply connections 8, 9 for the heating medium, a supply line 15 is laid, which in turn has a connecting flange 16 for connection to an energy supply line, not shown. The discharge line 12 opening out of the collecting tray 11 likewise has a flange 11 for the purpose of connection to a collecting line, not shown. In the radial plane 18 of the trough 1 and essentially at right angles to the guide webs 13 extending in the direction of the trough axis 19, rib-shaped reinforcing elements 20 are arranged on the double jacket 7 or on the outer jacket plate 5, which are spaced apart and whose inner contour is adapted to the outer contour of the double jacket 7 is.

In Fig. 2 ist erkennbar, daß mit Hilfe der Leitstege 13 im Doppelmantel 7 Heizkammern 21, 22, 23, 24 gebildet sind, die untereinander mit Strömungsöffnungen 25, 26 für das Heizme­dium verbunden sind. Infolge der zur Muldenachse parallel verlaufenden Anordnung der Leitstege 13 erstrecken sich die einzelnen Heizkammern ebenfalls in Richtung der Muldenachse 19. Die die Heizkammer 21 mit der Heizkammer 22 verbindende Strömungsöffnung 25 ist an der Kammerstirnseite 27 angeord­net; die die Heizkammer 22 und die Heizkammer 23 verbindende Strömungsöffnung 26 ist im Mittenbereich 28 der Kammerlängs­seite 29 angeordnet. Die im Bereich der Muldensohle 10 ange­ordnete Heizkammer 24 ist mit den beiden benachbarten Heiz­kammern 23 über Strömungsöffnungen 25 verbunden, die sich wiederum im Kammerstirnbereich 27 befinden. Unterhalb der Heizkammer 24 ist die langgestreckte Sammelschale 11 zu sehen, die über Durchtrittsöffnungen 30 mit der Heizkammer­24 verbunden ist. Über diese Durchtrittsöffnungen tritt das in der Heizkammer 24 angesammelte Kondensat bzw. Heizmedium in die Sammelschale 11 und fließt von durch die Ablei­tung 12 in die nicht näher dargestellte Sammelableitung. In der Radialebene 18 der Mangelmulde 1 sind mit Abstand zuein­ander die Verstärkungselemente 20 angeordnet, die sich rechtwinklig zu den parallel zur Muldenachse 19 verlaufenden Leitstegen 13 erstrecken.In Fig. 2 it can be seen that with the help of the guide webs 13 in the double jacket 7 heating chambers 21, 22, 23, 24 are formed, which are connected to each other with flow openings 25, 26 for the heating medium. As a result of the arrangement of the guide webs 13 running parallel to the trough axis, the individual heating chambers likewise extend in the direction of the trough axis 19. The flow opening 25 connecting the heating chamber 21 to the heating chamber 22 is arranged on the end face 27 of the chamber; the flow opening 26 connecting the heating chamber 22 and the heating chamber 23 is arranged in the central region 28 of the longitudinal side 29 of the chamber. The heating chamber 24 arranged in the region of the trough sole 10 is connected to the two adjacent heating chambers 23 via flow openings 25, which are located are again in the chamber end region 27. Below the heating chamber 24, the elongated collecting bowl 11 can be seen, which is connected to the heating chamber 24 via passage openings 30. The condensate or heating medium accumulated in the heating chamber 24 enters the collecting tray 11 via these through openings and flows through the discharge line 12 into the collecting line, not shown in any more detail. In the radial plane 18 of the mangle trough 1, the reinforcement elements 20 are arranged at a distance from one another, which extend at right angles to the guide webs 13 running parallel to the trough axis 19.

Die schematische Darstellung für die Konstruktion der Man­gelmulde gemäß Fig. 1 und Fig. 2 macht deutlich, daß hier eine äußerst formstabile, verwindungssteife Konstruktion gewährleistet ist, die bei der mechanischen Bearbeitung ein hohes Maß an Genauigkeit zuläßt.The schematic representation for the construction of the mangle trough according to FIG. 1 and FIG. 2 makes it clear that an extremely dimensionally stable, torsionally rigid construction is guaranteed, which allows a high degree of accuracy in the mechanical processing.

Im praktischen Betrieb wird die Beheizung der Mangelmulde 1 in der Weise vorgenommen, daß das Heizmedium mit entspre­chender Temperatur und entsprechendem Betriebsdruck über die Zuführungsleitung 15 den beiden Zuführungsanschlüssen 8, 9 zugeleitet wird und etwa im mittleren Bereich 28 der Kam­merlängsseite 29 in die radial außen liegende Heizkammer 21 eintritt. In der Heizkammer 21 strömt das Heizmedium nach beiden Seiten zu der Kammerstirnseite und tritt dort durch die Strömungsöffnungen 25 in die benachbarte Heizkammer 22. In der Heizkammer 22 strömt das Heizmedium dann von außen auf die Kammermitte zu. Die Teilmengen des Heizmediums wer­den vereinigt und strömen über die Strömungsöffnung 27 in die nächste benachbarte Heizkammer 23 und teilen sich in dieser Heizkammer wieder auf. Die Teilmengen des Heizme­diums strömen vom mittleren Bereich zu der Kammerstirnseite 27 und treten über die dortigen Strömungsöffnungen 25 in die Heizkammer 24 ein, die an der Muldensohle 10 angeordnet ist. In dieser Heizkammer 24 sammelt sich das Kondensat bzw. Heizmedium, nachdem das Heizmedium seine Wärme an das Mul­denblech 2 abgegeben hat.In practical operation, the heating trough 1 is heated in such a way that the heating medium with the appropriate temperature and operating pressure is fed via the feed line 15 to the two feed connections 8, 9 and approximately in the central region 28 of the longitudinal chamber side 29 into the radially outer heating chamber 21 occurs. In the heating chamber 21, the heating medium flows on both sides to the front side of the chamber and there it enters the adjacent heating chamber 22 through the flow openings 25. In the heating chamber 22, the heating medium then flows from the outside to the center of the chamber. The portions of the heating medium are combined and flow through the flow opening 27 into the next adjacent heating chamber 23 and divide up again in this heating chamber. The partial quantities of the heating medium flow from the central region to the chamber end face 27 and enter through the flow openings 25 therein Heating chamber 24, which is arranged on the trough sole 10. The condensate or heating medium collects in this heating chamber 24 after the heating medium has given off its heat to the trough plate 2.

Durch die mehrfache und gleichmäßige Aufteilung des Heizme­diums auf die einzelnen Heizkammern und infolge der mehr­fachen Vermischung des Heizmediums vor seiner erneuten Auf­teilung ist eine optimale Beheizung der Mangelfläche 3 der Mangelmulde 1 gewährleistet.Due to the multiple and even distribution of the heating medium to the individual heating chambers and as a result of the multiple mixing of the heating medium before it is divided again, optimal heating of the lack surface 3 of the lack well 1 is ensured.

Claims (10)

1. Mangelmulde für eine mit mindestens einer Mangelwalze ausgerüsteten Muldenmangel insbesondere Mangelmulde für Großmuldenmangeln, mit einem als Halbschale ausgebildeten Muldenblech mit einer der Mangelwalze zugewandten Mangel­fläche und mit einer beheizbaren Außenfläche,
dadurch gekennzeichnet,
daß mit Abstand zur Außenfläche (4) des Muldenblechs (2) ein als Halbschale ausgebildetes Mantelblech (5) angeord­nete ist, welches die Außenfläche (4) des Muldenblechs (2) im wesentlichen überdeckt und mit dieser Außenfläche allseitig fest verbunden ist, daß der so gebildete Dop­pelmantel (7) Anschlüsse (8, 9) für die Zuführung und Abführung (11, 12) eines Heizmediums aufweist und daß in dem Doppelmantel (7) Leitstege (13) für das Heizmedium verlaufen.1. Shortage trough for a trough shortage equipped with at least one shortage roller, in particular shortage trough for large trough shortages, with a trough plate designed as a half-shell with a shortage surface facing the shortage roller and with a heatable outer surface,
characterized,
that at a distance from the outer surface (4) of the trough plate (2) is arranged as a half-shell jacket plate (5) which covers the outer surface (4) of the trough plate (2) substantially and is firmly connected to this outer surface on all sides, that the so formed double jacket (7) connections (8, 9) for the supply and discharge (11, 12) of a heating medium and that in the double jacket (7) guide webs (13) for the heating medium. 2. Mangelmulde nach Anspruch 1,
dadurch gekennzeichnet,
daß die Leitstege (13) mit der Außenfläche (4) des Mul­denblechs (2) fest verbunden sind und daß das Mantelblech (5) an den Leitstegen (13) spannungsdicht anliegt.2. Shortage trough according to claim 1,
characterized,
that the guide bars (13) are firmly connected to the outer surface (4) of the trough plate (2) and that the jacket plate (5) bears tightly against the guide bars (13). 3. Mangelmulde nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Krümmung des Mantelblechs (5) weitgehend der Krümmung des Muldenblechs (2) entspricht.3. shortage trough according to claim 1 or 2,
characterized,
that the curvature of the casing plate (5) largely corresponds to the curvature of the trough plate (2). 4. Mangelmulde nach Anspruch 1, 2 oder 3,
dadurch gekennzeichnet,
daß die Leitstege (13) längs zur Muldenachse (19) ver­laufen und mit etwa gleichem radialen Abstand zueinander auf der Außenfläche (4) des Muldenblechs (2) angeordnet sind.4. Shortage trough according to claim 1, 2 or 3,
characterized,
that the guide webs (13) run longitudinally to the trough axis (19) and are arranged at approximately the same radial distance from one another on the outer surface (4) of the trough plate (2). 5. Mangelmulde nach mindestens einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß mit Hilfe der Leitstege (13) im Doppelmantel (7) Heizkammern (21, 22, 23, 24) gebildet sind, die unterein­ander mit mindestens einer Strömungsöffnung (25, 26) für das Heizmedium verbunden sind.5. Shortage trough according to at least one of claims 1 to 4,
characterized,
that with the help of the guide webs (13) in the double jacket (7) heating chambers (21, 22, 23, 24) are formed, which are connected to one another with at least one flow opening (25, 26) for the heating medium. 6. Mangelmulde nach mindestens einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß die Zuleitung (15) für das Heizmedium etwa mittig in die jeweils radial außen liegenden Heizkammern (21) ge­führt ist.6. Shortage trough according to at least one of claims 1 to 5,
characterized,
that the supply line (15) for the heating medium is guided approximately centrally into the radially outer heating chambers (21). 7. Mangelmulde nach wenigstens einem der vorhergehenden An­sprüche,
dadurch gekennzeichnet,
daß die die Heizkammern (21, 22 / 23, 24) verbindenden Strömungsöffnungen (25) - Längsrichtung der Mulden­achse (19) gesehen und beginnend mit den radial außen liegenden Heizkammern (21) - im Bereich der Kammerstirn­seiten (27) angeordnet sind und daß die Strömungsöffnun­gen (26) der direkt benachbarten Heizkammern (22, 23) im Mittenbereich (28) der Kammerlängsseiten (29) angeordnet sind und daß in dieser abwechselnden Folge die Strömungs­öffnungen (25, 26) die nachfolgenden Heizkammern verbin­den.7. lack trough according to at least one of the preceding claims,
characterized,
that the heating chambers (21, 22/23, 24) connecting flow openings (25) - seen in the longitudinal direction of the trough axis (19) and starting with the radially outer heating chambers (21) - are arranged in the region of the chamber end faces (27) and that Flow openings (26) of the directly adjacent heating chambers (22, 23) in Center region (28) of the longitudinal sides of the chamber (29) are arranged and that in this alternating sequence the flow openings (25, 26) connect the subsequent heating chambers. 8. Mangelmulde nach wenigstens einem der vorhergehenden An­sprüche,
dadurch gekennzeichnet,
daß die am Bereich der Muldensohle (10) angeordnete Heiz­kammer (24) mit den zu beiden Seiten benachbarten Heiz­kammern (23) über Strömungsöffnungen (25) in Verbindung steht, die am Stirnbereich (27) dieser Kammern (23, 24) angeordnet sind.8. lack trough according to at least one of the preceding claims,
characterized,
that the heating chamber (24) arranged at the region of the trough sole (10) communicates with the heating chambers (23) adjacent on both sides via flow openings (25) which are arranged at the end region (27) of these chambers (23, 24). 9. Mangelmulde nach mindestens einem der vorhergehenden An­sprüche,
dadurch gekennzeichnet,
daß die im Bereich der Muldensohle (10) angeordnete Heiz­kammer (24) über Durchtrittsöffnungen (30) mit einer Sammelschale (11) für das Kondensat bzw. Heizmedium in Verbindung steht.9. shortage trough according to at least one of the preceding claims,
characterized,
that the heating chamber (24) arranged in the region of the trough sole (10) is connected via passage openings (30) to a collecting pan (11) for the condensate or heating medium. 10. Mangelmulde nach wenigstens einem der vorhergehenden An­sprüche,
dadurch gekennzeichnet,
daß in der Radialebene (18) der Mangelmulde (1) und im wesentlichen rechtwinklig zu den in Richtung der Mulden­achse (19) verlaufenden Leitstegen (13) am Doppelmantel (7) rippenförmige Verstärkungselemente (20) mit Abstand zueinander angeordnet sind, deren Innenkontur der Außen­kontur des Doppelmantels (7) angepaßt ist.10. lack trough according to at least one of the preceding claims,
characterized,
that in the radial plane (18) of the mangle trough (1) and substantially at right angles to the guide webs (13) running in the direction of the trough axis (19) on the double jacket (7), rib-shaped reinforcing elements (20) are arranged at a distance from one another, the inner contour of the outer contour the double jacket (7) is adapted.
EP89102076A 1988-03-18 1989-02-07 Bed for ironing machines Expired - Lifetime EP0332840B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3809061 1988-03-18
DE3809061A DE3809061A1 (en) 1988-03-18 1988-03-18 DEFECTIVELESS FOR DRAWER DEFECTS

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EP0332840A1 true EP0332840A1 (en) 1989-09-20
EP0332840B1 EP0332840B1 (en) 1992-08-12

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ID=6350049

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Application Number Title Priority Date Filing Date
EP89102076A Expired - Lifetime EP0332840B1 (en) 1988-03-18 1989-02-07 Bed for ironing machines

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EP (1) EP0332840B1 (en)
DE (2) DE3809061A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805286A1 (en) * 2000-02-23 2001-08-24 Electrolux Syst Blanchisserie IRONING DRYER WITH HEATED IRONING CUP AND HEAT FLUID
EP2628847A1 (en) * 2012-02-17 2013-08-21 Laco Machinery NV Through for an ironing device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB216199A (en) * 1923-02-21 1924-05-21 William Litler Bradford Improvements in machines for ironing or drying table or bed linen and similar fabric articles
DE743991C (en) * 1939-04-19 1944-01-06 Eugen Dahlmann Trough for hollow pallet machines with heating channels
DE809907C (en) * 1948-04-07 1951-08-02 Isaac Braithwaite & Son Machine for ironing flat items of laundry
US3118240A (en) * 1959-01-12 1964-01-21 D hooge
DE1211122B (en) * 1963-10-29 1966-02-24 Waescherei Guenther Flexible ironer tray for a laundry ironer
NL8401435A (en) * 1984-05-04 1985-12-02 Hooge Nv E Industrial laundry ironing unit - rotary pressure cylinder in through with semi:cylindrical inner wall and outer wall with space in between for heating oil or steam

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB216199A (en) * 1923-02-21 1924-05-21 William Litler Bradford Improvements in machines for ironing or drying table or bed linen and similar fabric articles
DE743991C (en) * 1939-04-19 1944-01-06 Eugen Dahlmann Trough for hollow pallet machines with heating channels
DE809907C (en) * 1948-04-07 1951-08-02 Isaac Braithwaite & Son Machine for ironing flat items of laundry
US3118240A (en) * 1959-01-12 1964-01-21 D hooge
DE1211122B (en) * 1963-10-29 1966-02-24 Waescherei Guenther Flexible ironer tray for a laundry ironer
NL8401435A (en) * 1984-05-04 1985-12-02 Hooge Nv E Industrial laundry ironing unit - rotary pressure cylinder in through with semi:cylindrical inner wall and outer wall with space in between for heating oil or steam

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805286A1 (en) * 2000-02-23 2001-08-24 Electrolux Syst Blanchisserie IRONING DRYER WITH HEATED IRONING CUP AND HEAT FLUID
US6360460B2 (en) 2000-02-23 2002-03-26 Electrolux Systemes De Blanchisserie Dryer-ironer with heated ironing cup and heat carrying fluid
EP1234908A1 (en) * 2000-02-23 2002-08-28 Electrolux Systèmes de Blanchisserie Ironing machine with heated mangle and heat transfer fluid
CZ302607B6 (en) * 2000-02-23 2011-08-03 Electrolux Systemes De Blanchisserie Drying and ironing device
EP2628847A1 (en) * 2012-02-17 2013-08-21 Laco Machinery NV Through for an ironing device
BE1020469A5 (en) * 2012-02-17 2013-11-05 Laco Machinery N V FAIRER FOR IRONING.

Also Published As

Publication number Publication date
DE3809061A1 (en) 1989-09-28
DE58902013D1 (en) 1992-09-17
EP0332840B1 (en) 1992-08-12

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