EP2239365A2 - Presse repasseuse et procédé de chauffage d'une presse repasseuse - Google Patents

Presse repasseuse et procédé de chauffage d'une presse repasseuse Download PDF

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Publication number
EP2239365A2
EP2239365A2 EP10003116A EP10003116A EP2239365A2 EP 2239365 A2 EP2239365 A2 EP 2239365A2 EP 10003116 A EP10003116 A EP 10003116A EP 10003116 A EP10003116 A EP 10003116A EP 2239365 A2 EP2239365 A2 EP 2239365A2
Authority
EP
European Patent Office
Prior art keywords
trough
mangle
wall
steam
cavity
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
EP10003116A
Other languages
German (de)
English (en)
Other versions
EP2239365A3 (fr
EP2239365B1 (fr
Inventor
Wilhelm Bringewatt
Engelbert Heinz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Herbert Kannegiesser GmbH and Co
Original Assignee
Herbert Kannegiesser GmbH and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Herbert Kannegiesser GmbH and Co filed Critical Herbert Kannegiesser GmbH and Co
Publication of EP2239365A2 publication Critical patent/EP2239365A2/fr
Publication of EP2239365A3 publication Critical patent/EP2239365A3/fr
Application granted granted Critical
Publication of EP2239365B1 publication Critical patent/EP2239365B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D06F65/00—Ironing machines with rollers rotating against curved surfaces
    • 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 method for heating a tray deficiency according to the preamble of claim 1. Furthermore, the invention relates to a tray shortage according to the preamble of claim 6.
  • Trough deficiencies serve to smooth items of laundry and at the same time to remove the residual moisture required for smoothing the items of laundry, namely to dry the items of laundry.
  • Such trough mangles have either a single rotationally drivable mangle roll and a mangle trough associated therewith or a plurality of successive mangle rolls, each with a mangle trough.
  • the laundry items are moved between the respective mangle roller and the substantially the lower half of the mangle roller surrounding mangle tray.
  • the lack of wells such Muldenbaln are heated.
  • the heating of the lack wells can be done in different ways.
  • a direct heating of the respective mangle trough takes place with a heating device.
  • Larger trough mangles have double-walled mangle troughs with at least one cavity in the interior thereof. To heat such lack wells, the cavity is fed with steam coming from an external steam generator.
  • Such trough mangles require separate steam generators that can be used economically only with large trough mangles.
  • the invention is an object of the invention to provide a trough mangle and a method for heating the same, which in an economical manner an effective and uniform heating in the respective mangle trough is possible.
  • a method for solving the above-mentioned problem comprises the measures of claim 1.
  • the fact that the steam is generated in the respective lack well, on the one hand to the mangle roller pointing, a flattening surface for the laundry to be smoothed forming inner wall of the double-walled lack well can be uniformly heated and on the other hand, no separate steam generator is required.
  • the inventive method thus allows an intensive, quasi-direct steam heating of the or each lack well even smaller trough mangles.
  • the steam generating device is integrated into the mangle trough by simultaneously forming a pressure body for steam generation and with its inner surface having a flattening surface a condenser surface on which condenses the steam generated in the mangle trough.
  • the method is provided to generate the vapor by evaporation of a liquid in the cavity of the respective mangle trough.
  • the respective trough deficiency is the necessary to generate steam in the same liquid, wherein the accumulating at the plateau inner wall of the mangle trough accumulating condensate can collect again as a liquid and evaporated.
  • it is preferably provided to generate the vapor by evaporation of a liquid at the lowest point of the respective mangle trough. This lowest point is preferably located at the lower vertex of the lower half of the mangle roller surrounding approximately semicircular mangle trough.
  • a targeted supply of energy to evaporate the liquid can take place.
  • the method according to the invention it is provided to fire the lowest point of the respective lacking well from the outside.
  • This can be done for example by a flame tube or several individual flame tubes.
  • the Flames are preferably generated by burning gas.
  • the outside heating preferably the lowest point of the respective mangle trough can also be done by other energy sources, for example by radiant heaters.
  • the flame tubes or radiant heaters can be oil-heated.
  • the steam is generated in the interior of the respective mangle trough by arranged in the cavity of the same heating tubes.
  • the heating pipes are heated electrically by radiators arranged in the same or by a heat transfer fluid, for example a thermal oil.
  • a tray shortage for solving the above-mentioned problem has the features of claim 6.
  • the trough deficiency is characterized by the fact that the at least one mangle trough has an extension in the region of its lowest point. As a result, accumulates at this point the not yet evaporated liquid, which can be selectively heated and thereby evaporated to form steam in the interior of the mangle trough. By extending the lowest point of the lack well enough space for the liquid needed to generate steam is created. As a result, a sufficient amount of liquid to be evaporated can be accommodated in the respective lacking well.
  • the extension at the lowest point of the lack well is formed as a cross-sectional widening.
  • a cross-sectional widening can be particularly simple form in a usually semi-circular double-walled lack well by the platelet surface forming inner wall is semicircular, but the outer wall has a shape that causes the distance of the outer recess at the lowest point of the lack well Wall of the inner wall is larger than at the higher edges of the respective Mangelmulde.
  • a correspondingly large reservoir for liquid to be evaporated can be created at the lowest point of the mangle trough.
  • the cross-sectional widening can be achieved by any deviating from the semicircular shape cross-sections of the outer wall, for example by a parabolic, semi-elliptical, teardrop-shaped or angular cross-sectional geometry.
  • the cross section is preferably the same everywhere, so that the cross-sectional widening of the mangle trough in the longitudinal direction thereof is continuous, ie does not change in the longitudinal direction.
  • a preferred development of the trough deficiency which may also be an independent solution of the object mentioned above according to a further invention, provides for at least one mangle trough to be designed as a pressure body for generating steam.
  • This pressure body is not only tight, but above all sufficiently stable to withstand the pressure of the steam formed inside the respective lacking well.
  • an inner wall of the mangle trough forms a condenser surface or condensation surface on which the steam generated in the mangle trough condenses.
  • the mangle trough thus simultaneously forms the pressure body for generating steam and the surface for condensing the steam generated in the pressure body or in the mangle trough.
  • the invention further provides a preferred embodiment of the tray deficiency, in which the outer wall of the respective mangle trough in the region of the extension, in particular the cross-sectional widening, at least one heating device, for example at least one flame tube assigned.
  • the energy required to generate steam inside the respective lack well is thus supplied to the same from the outside by a direct heating in the outer wall of the mangle trough. It may preferably be provided to make the outer wall of the lack well thinner than the inner wall forming the platelet, whereby a good heat transfer of the outside acting on the outer wall heat energy to the liquid to be evaporated in the interior of the respective lack well can be achieved.
  • An alternative embodiment of the tray shortage according to the invention provides, in the region of the extension, in particular the cross-sectional widening, to arrange the respective lack well in the cavity thereof at least one heating element. This makes it possible to heat the liquid directly inside the respective mangle trough, wherein the arrangement of the at least one heating element in the region of the extension, in particular the cross-sectional widening, the mangle trough ensures direct contact of the liquid to be evaporated with the at least one heating element.
  • a further preferred embodiment of the trough mangle provides for the respective heating element to be arranged in the interior of the or each mangle trough in a sealed space, preferably at least one tube.
  • the tube may be part of the heater when it is flowed through by a heating fluid, such as a thermal oil.
  • the pipe to protect the heater for example electric heating rods to provide.
  • the respective pipe leads inside the respective lack well to a particularly effective heating of the liquid to be evaporated in the lower region of the mangle trough, preferably in the vertex located at the lowest point of the mangle trough.
  • each lack well is associated with at least one sensor measuring the pressure and / or the temperature in the lack well.
  • the at least one sensor continuously determines whether the pressure alternatively or additionally the temperature in the interior of the respective mangle trough does not rise above predetermined limit values.
  • a device which, depending on the measured pressure and / or the temperature in the respective mangle trough, controls, preferably controls, the energy supply for heating the mangle trough. It can be assigned to each lack gutter its own institution or a common institution for all lack gutters. By controlling or regulating the energy supply for heating the respective lacking well, it is ensured that the pressure and, alternatively or additionally, the temperature in each lacking well does not exceed predetermined setpoint values. As a result, the pressure and / or the temperature can not assume inadmissibly high values, which could lead to damage or even the bursting of a lacking well.
  • the trough mangles shown serve to smooth garments, not shown, namely to lack.
  • the items of laundry are heated in the trough deficiency and while the lack of residual moisture having garments during the mangling end-dried at the same time.
  • the Fig. 1 The mangle trough 10 surrounds approximately semicircular the lower half of the mangle roller 11. Between the mangle trough 10 and the mangle roller 11 thereby creates an approximately semicircular mangle gap 12, which in the Fig. 1 is shown enlarged for better representation.
  • the mangle gap 12 is so narrow that the respective lack of laundry items with system on the lateral surface of the mangle roller 11 and the inside of the mangle trough 10 of the rotationally drivable mangle roller 11 through the mangle gap 12 is hin micbewegbar.
  • the laundry item is continuously moved along a flat surface 13 formed by the inside of the ironer tray 10.
  • the lacking well 10 has an inlet side 14 at which the item of laundry passes into the mangle gap 12. At an opposite outlet side 15, the laundry item runs out of the mangle gap 12. The laundry item is moved in a direction indicated by an arrow direction of defect 16 through the mangle gap 12.
  • the mangle roller 11 is driven in rotation counterclockwise from its horizontal longitudinal central axis 17, wherein the longitudinal center axis simultaneously forms an axis of rotation 20 of the mangle roller 11.
  • the mangle trough 10 of the trough deficiency shown here is designed for quasi-direct heating of the tiling surface 13.
  • the flattening surface 13 is heated with steam, which is produced according to the invention in the lacking well 10.
  • the lacking well 10 is double-walled in that it has an inner wall 17 surrounding the lower half of the mangle roller 11 and an exposed outer wall 18.
  • the mangle trough 10 serves at the same time as a pressure body for steam generation and steam condenser.
  • the inner wall 17 and the outer wall 18 are tightly welded together and gas tight around each other, so that the entire mangle trough 10 forms a pressure body having an inner cavity 19.
  • the shown lack well 10 has a single cavity 19 without any flow channels.
  • the outer wall 18 and the inner wall 17 of the mangle tray 10 are formed of steel. This may be black steel or stainless steel, in particular stainless steel act.
  • the wall thicknesses of the inner wall 17 and the outer wall 18 are chosen so that they withstand the resulting vapor in the cavity 19, but the mangle trough 10 at least in the circumferential direction of the mangle roller 11 is still flexible, so that the mangle trough 10 evenly over the entire circumference with, preferably equal force can be pressed against the mangle roller 11.
  • the wall thicknesses of the inner wall 17 and the outer wall 18 are approximately equal. However, it is conceivable to make the wall thickness of the outer wall 18 smaller than the wall thickness of the inner wall 17 or possibly also vice versa.
  • the on the mangle roller 11 side facing the plateau 13 forming inner wall 17 of the mangle trough 10 is formed approximately semicircular.
  • the outer wall 18 has a cross-section which is not semicircular or only in an upper region.
  • the cross-section of the outer wall 18 is chosen so that the lacking well 10 at the lowest point, namely below the axis of rotation 20 of the mangle roller 11, ie in the lower vertex, an extension, in particular a cross-sectional widening has.
  • This extension causes the lacking well 10 in its lower region over a greater distance of the outer wall 18 to the inner wall 17 than in the higher-lying lateral edge regions. In this way, the expansion increases the height or width of the cavity 19 in the lower region of the mangle trough 10, preferably in the lower vertex area.
  • the outer wall 18 has a course which steadily increases starting from the edges on the inlet side 14 and the outlet side 15 of the mangle trough 10 up to the apex line 21 below the axis of rotation 20 of the mangle roller 11.
  • the outer wall 18 is provided with an almost horizontally extending bottom in order to form the cross-sectional widening.
  • the cross-sectional widening forms a flat trough extending over the bottom region 22 of the outer wall 18 for receiving the liquid 34 to be evaporated in the mangle trough 10.
  • the in the Fig. 1 The lacking well 10 shown is fired from the outside, by a extending over the entire longitudinal direction of the lacking well 10 flame tube 23.
  • the flame tube 23 is located centrally below the lacking well 10, with some distance from the outer wall 18.
  • the flame tube 23 is so in that it preferably heats the flat bottom region 22 of the outer wall 18. As a result, the liquid accumulating in the bottom region 22 in the interior of the mangle trough 10 is heated, thereby producing steam directly inside the mangle trough 10.
  • the size of the cavity 19, in particular the cross-sectional enlargement of the cavity 19 in the lower region of the lacking well 10, is so dimensioned that the liquid level in the lacking well 10 is below the lowest point of the inner wall 17, so that the steam inside the lacking well 10 over the entire surface the entire inner wall 17 can come into contact.
  • the mangle trough 10 is assigned a pressure sensor 24 and a temperature sensor 24, in particular of the type pT 100. Both sensors 24 and 25 are arranged in the outer wall 18, namely near the highest point of the lacking well 10, namely at a short distance from a longitudinal edge of the lacking well 10.
  • the pressure sensor 24 and the temperature sensor 25 are arranged slightly below the outlet side 15 .
  • the pressure sensor 24 and the temperature sensor 25 continuously provide current pressure and temperature values to a device for controlling the energy supply to the flame tube 23. This is preferably a control device, the energy supply to the flame tube 23 and thus the intensity of the firing of the bottom portion 22 of the Outside wall 18 in response to measured by the pressure sensor 24 and the temperature sensor 25 pressure and temperature controls.
  • This regulation takes place in such a way that the pressure and the temperature in the mangle trough 10 do not exceed predetermined set values, in particular maximum values.
  • the set values may be changed depending on the desired mangle temperature, which is adaptable to the type of laundry to be mangled. Alternatively, it is conceivable to provide only one pressure sensor 24 or one temperature sensor 25.
  • Fig. 2 Trough deficiency shown differs from that of Fig. 1 only by a different shape of the outer wall 26 of the mangle trough 27. Otherwise corresponds to the trough lack of Fig. 2 that of the Fig. 1 , therefore, the same reference numerals are used for the same parts.
  • the outer wall 26 of the lack well 27 has a parabolic or semi-elliptical cross section, in the latter case, the center of the ellipse half lies on the axis of rotation 20 and the long axis of the ellipse is perpendicular. Due to this design of the outer wall 26, the distance of the outer wall 26 to the inner wall 17 increases steadily from the upper longitudinal edges on the inlet side 14 of the outlet side 15 to the apex line 21 at the lowest point of the mangle trough 27. This also creates an extension, in particular a cross-sectional widening, of the cavity 19 in the lacking well 27. The lowest point of this cross-sectional widening lies on the apex line 21 of the lacking well 27.
  • the in the Fig. 2 shown lack gutter 27 a compared to the lacking well 10 of Fig. 1 deeper cross-sectional widening, whereby the liquid to be evaporated 34 collects in a narrower area left and right of the apex line 21 in the cross-sectional widening of the lacking well 27.
  • the liquid contacts the outer wall 26 in the in the Fig. 2 shown tray deficiency thus only in a fairly narrow range, which is specifically and intensively heated by the flame tube 23.
  • Fig. 3 shows a trough deficiency with an alternative outer wall 28 of the mangle trough 29. Otherwise corresponds to the trough lack of Fig. 3 also those of Fig. 1 , therefore, the same reference numerals have been used for the same parts.
  • the outer wall 28 is semicircular in opposite edge regions, starting from the inlet side 14 and the outlet side 15 forming longitudinal edges of the mangle trough 29 of the distance the outer wall 28 to the inner wall 17 is slightly increased. This distance can also remain the same.
  • Fig. 3 is the extension, in particular cross-sectional enlargement, formed by a trough 30 at the lowest point of the mangle trough 29.
  • the trough 30 here has an approximately trapezoidal cross-section, which is designed to be consistent in the longitudinal direction of the mangle trough 29.
  • the dimension of the tub 30 is chosen so that it receives almost all of the liquid to be evaporated 34 inside the lacking well 29.
  • the fire tube 23 under the tub 30 is formed to substantially heat only the planar horizontal bottom wall 31 of the tub 30.
  • the Fig. 4 shows a further alternative embodiment of a tray shortage.
  • This trough deficiency corresponds, in particular with regard to the lacking trough 10, to the embodiment of FIG Fig. 1 , so that the same reference numbers are used again for the same parts.
  • Deviating from the trough lack of Fig. 1 the energy is used to evaporate the liquid in the event of a shortage of Fig. 4 produced by a plurality of heating rods 32 in the lacking well 10.
  • the heating elements 32 are formed in the embodiment shown as Elektrowoodstäbe. It is also conceivable to heat the heating elements by a heat transfer fluid.
  • Fig. 4 are all heating elements formed by running in the longitudinal direction of the mangle tray 10 thin tubes 33 which are gas-tightly connected to the end faces of the mangle tray 10, in particular by welding.
  • the ends of the tubes 33 of all heating elements 32 are open at the end faces of the lacking well 10.
  • the tubes 32 can be equipped with electrical heating conductors, heating wires, heating coils or other radiators and electrical leads are supplied. Due to the arrangement in the tubes 33, the heating elements of the electric heating elements 32 do not come into contact with the liquid to be evaporated in the lacking well 10.
  • All the heating rods 32 are located near the lowest point of the mangle trough 10, namely close to the flat bottom portion of the outer wall 18 of the mangle trough 10. All heating rods 32 are located so close to the bottom portion 22 of the mangle trough 10 that they are completely from the liquid to be evaporated are covered.
  • the mangle trough 10 is designed as a gas-tight pressure body in which steam can be generated directly in the manner of a steam boiler.
  • the inner wall 17 and the outer wall 18 are pressure-tight and gas-tight welded together.
  • the steam generation within the lacking well 10 of the inner wall 17 formed part of the pressure vessel also serves as a condensation and heat exchange surface, where the steam generated in the lacking well 10 condenses and the energy of the steam generated in the lacking well 10 to the flattening surface 13 by heat conduction is transmitted.
  • liquid 34 In the cavity 19 of the double-walled lacking well 10 there is so much liquid 34 that under all operating conditions never the whole liquid can be evaporated.
  • the liquid level is chosen so that it can not reach the lowest point of the inner wall 17, so that the steam formed within the Mangelmulde 10 comes into contact with the entire inner wall 17.
  • the vaporized in the steam generation liquid 34 is continuously replaced in the interior of the mangle trough 10 by condensate formed during the cooling of the steam generated, which flows back mainly to the inner wall 17 to the liquid supply in the mangle trough 10th
  • the liquid to be evaporated 34 always collects at the lowest point of the cross-sectional widening of the Mangelmulde 10, in the region of the central crest line 21.
  • the lack well 10 arranged flame tube 23 Through the center below the lack well 10 arranged flame tube 23, only the bottom portion 22 of the outer wall 18 of the mangle trough 10 is heated, in which collects liquid to be evaporated 34.
  • the outer edge regions of the mangle trough 10, in which only steam is 35, however, are not heated. In this way, a particularly effective evaporation of the liquid 34 in the lacking well 10, whereby in this continuously during operation of the trough mangle steam 35 is generated.
  • the pressure sensor 24 and the temperature sensor 25 the current pressure and temperature values within the mangle trough 10 are continuously determined.
  • the current pressure and temperature values in the interior of the mangle trough 10 are compared with predetermined pressure and temperature values, and accordingly the heating of the mangle trough 10 by the flame tube 23 regulated, so that the temperature and the pressure inside the Mangelmulde 10 can not assume unacceptably high values. It is also conceivable, however, to regulate or at least control only the temperature or the pressure in the lacking well 10.
  • the inventive method runs with the trough mangles of Fig. 2 to 4 in principle, just as in the previously described inventive method.
  • the embodiment of Fig. 4 differs from the embodiments of the Fig. 1 to 3 merely in that the heating of the liquid does not take place indirectly via the flame tube 23 through the outer wall 18 of the mangle trough 10, but inside the mangle trough 10 by arranged in the cavity 19 thereof heating rods 32, in particular tubes 33 with electrical heating elements arranged therein.
  • the invention has been explained above with reference to trough mangles with only one mangle trough 10 and a mangle roll 11. However, the invention is also suitable for trough mangles with several successive mangle troughs 10 and a mangle trough 11 associated with each mangle trough 11.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Coating With Molten Metal (AREA)
EP10003116.0A 2009-04-09 2010-03-24 Presse repasseuse et procédé de chauffage d'une presse repasseuse Active EP2239365B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009016709A DE102009016709A1 (de) 2009-04-09 2009-04-09 Muldenmangel und Verfahren zur Beheizung einer Muldenmangel

Publications (3)

Publication Number Publication Date
EP2239365A2 true EP2239365A2 (fr) 2010-10-13
EP2239365A3 EP2239365A3 (fr) 2012-04-04
EP2239365B1 EP2239365B1 (fr) 2017-07-12

Family

ID=42372321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10003116.0A Active EP2239365B1 (fr) 2009-04-09 2010-03-24 Presse repasseuse et procédé de chauffage d'une presse repasseuse

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EP (1) EP2239365B1 (fr)
DE (1) DE102009016709A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2679719A1 (fr) * 2012-06-28 2014-01-01 Miele & Cie. KG Machine à repasser à la manière d'un mangle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018113148A1 (fr) * 2016-12-19 2018-06-28 上海威士机械有限公司 Machine à repasser à fentes
CN106835652B (zh) * 2017-02-14 2023-06-23 上海威士机械有限公司 一种槽式烫平机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB873881A (en) * 1959-01-12 1961-08-02 Emile D Hooge S P R L Atel Con Ironing machines
NL8900457A (nl) * 1989-02-23 1990-09-17 Hooge Nv E Inrichting voor het strijken van wasgoed.
FR2805286B1 (fr) * 2000-02-23 2002-05-17 Electrolux Syst Blanchisserie Secheuse-repasseuse a cuvette de repassage chauffante et fluide caloporteur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2679719A1 (fr) * 2012-06-28 2014-01-01 Miele & Cie. KG Machine à repasser à la manière d'un mangle

Also Published As

Publication number Publication date
EP2239365A3 (fr) 2012-04-04
EP2239365B1 (fr) 2017-07-12
DE102009016709A1 (de) 2010-10-14

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