EP1273691A2 - Procédé pour laver le linge et machine à laver à contre-courant pour réaliser ce procédé - Google Patents

Procédé pour laver le linge et machine à laver à contre-courant pour réaliser ce procédé Download PDF

Info

Publication number
EP1273691A2
EP1273691A2 EP02013689A EP02013689A EP1273691A2 EP 1273691 A2 EP1273691 A2 EP 1273691A2 EP 02013689 A EP02013689 A EP 02013689A EP 02013689 A EP02013689 A EP 02013689A EP 1273691 A2 EP1273691 A2 EP 1273691A2
Authority
EP
European Patent Office
Prior art keywords
working chamber
chamber
laundry
washing machine
scoop
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
EP02013689A
Other languages
German (de)
English (en)
Other versions
EP1273691B1 (fr
EP1273691A3 (fr
Inventor
Rudolf Küttelwesch
Rudolf Asmuth
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.)
Mewa Textil Service AG and Co Management OHG
Original Assignee
Mewa Textil Service AG and Co Management OHG
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 Mewa Textil Service AG and Co Management OHG filed Critical Mewa Textil Service AG and Co Management OHG
Publication of EP1273691A2 publication Critical patent/EP1273691A2/fr
Publication of EP1273691A3 publication Critical patent/EP1273691A3/fr
Application granted granted Critical
Publication of EP1273691B1 publication Critical patent/EP1273691B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D06F31/00—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies
    • D06F31/005—Washing installations comprising an assembly of several washing machines or washing units, e.g. continuous flow assemblies consisting of one or more rotating drums through which the laundry passes in a continuous flow

Definitions

  • the invention relates to a method for washing laundry in a countercurrent washing machine, wherein the laundry in a number of in a conveying direction seen consecutive working chambers each one of these is subjected to the associated treatment step, wherein the used Wash liquor passed through the working chambers in countercurrent to the laundry is, and wherein during a treatment step, the intended working chamber is pivoted about a rotation axis reversing. It concerns furthermore a countercurrent washing machine suitable for carrying out the method.
  • a so-called countercurrent washing machine is used come.
  • Such a countercurrent washing machine as for example DE 198 12 386 A1, usually comprises a number of in one Conveying direction for the laundry successive working chambers.
  • These working chambers which are pivotable about a common axis of rotation are each for receiving a specific amount of laundry and to carry out a chamber-specific treatment step, such as a prewash, a main wash or a rinse.
  • the working chambers are reversing about their common axis of rotation panned, d. H. at an angle of less than 360 °, for example by 300 °, turned. In this reversing pivoting movement, supported by the respective chamber wall arranged driving ribs, the laundry intensive moved in the wash liquor.
  • the laundry is in each case in the direction of conveyance seen for the laundry next work chamber spent.
  • the countercurrent washing machine a continuous through the working chambers Include conveyor spiral.
  • the transport device onward transport causes the laundry in the next working chamber.
  • the conveying direction of the laundry first working chambers usually as Vorwaschhuntn
  • the subsequent working chambers as wash chambers and seen in the conveying direction last working chambers designed as flushing chambers.
  • the wash liquor becomes common in such a countercurrent washing machine guided against the conveying direction of the laundry through the working chambers.
  • the wash liquor at the output end for the laundry in the countercurrent washing machine fed and flows through holes in the transport device against the conveying direction of the laundry through the working chambers.
  • the wash liquor is then removed again.
  • the invention is therefore based on the object, a method for washing Indicate washing in a countercurrent washing machine of the type mentioned above, with a particularly high washing and rinsing and thus in particular a comparatively low water requirement is achievable.
  • a particularly high washing and rinsing and thus in particular a comparatively low water requirement is achievable.
  • one for the Carrying out the method particularly suitable countercurrent washing machine be specified.
  • this object is achieved according to the invention by that at each pivoting cycle in each case a part of the located in this working chamber Wash liquor separated or skimmed off, via the pivoting movement of the Working chamber spent in an upper area of this working chamber and from there again the remaining wash liquor is added.
  • the invention is based on the consideration that for a particularly high Washing or rinsing power available in the respective working chamber Fleet should be exploited to a particularly high degree. Therefore The should be attached to the laundry to be washed with dirt dissolved particularly high efficiency of the laundry and brought into the wash liquor or emulsified into it.
  • a high transfer rate of soiling into the wash liquor is basically by the provision a comparatively high amount of wash liquor, so a comparatively large amount of water, possible.
  • a high transfer rate when removing contaminants From the laundry and their introduction to the wash liquor should be a comparatively high differential speed between wash water and laundry fibers be provided because such a high differential speed due to the shearing action of the water flowing past the fiber with detergents a particularly favorable separation of the contaminants caused by the respective fiber.
  • a comparatively high differential speed between laundry and water is already existing in existing plants achieved that on the driver the laundry within the respective working chamber lifted out of the wash liquor and from elevated position in the wash liquor is thrown back.
  • An additional increase in mechanical Contributions to the washing effect is now achieved by adding still in the respective working chamber a part of the fleet in a position above transported to the laundry to be treated and from there using the gravitational Acceleration is poured on the laundry to be treated.
  • Such an increase in efficiency or flushing performance can both in intended for the actual washing of the laundry working chambers, ie in Prewash or wash chambers, as well as designed for rinsing the laundry Working chambers or rinsing chambers may be provided.
  • the as wash chambers provided working chambers may be in a countercurrent washing machine double-walled, with one between an inner, perforated Drum wall and a surrounding outer wall of the respective working chamber existing space usually for feeding the wash liquor with detergents or other media, or also used for removal Components of the wash liquor is provided.
  • the intermediate storage of the part of the wash liquor expediently arranged in a number of outside of the drum wall Scoop bags.
  • At least one Working chamber has a number of scoop pockets, the wash liquor side communicate with the interior of the respective working chamber such that in a starting position, a part of the washing liquor located in this working chamber overflowed into the respective scoop pocket, in this scoop pocket over the Pivoting movement of the working chamber in an upper space region of the working chamber is promoted and from there back into the interior of the working chamber flowing back.
  • Such a configuration is during a wash cycle, ie during the reversing swinging back and forth of the respective working chamber, allows caching of a portion of the wash liquor in a scoop pocket.
  • As a result of the further pivoting of the working chamber enters the in the scoop pocket cached part of the wash liquor in a opposite the laundry elevated position and pours from there under appropriate Speed increase due to gravity on the in the working chamber located laundry.
  • the scoop pockets are advantageously each on the outside of the associated working chamber defining Drum wall arranged.
  • the respective scoop pocket and the associated working chamber common Intermediate wall element over a large area, preferably substantially completely, as Perforated sheet formed.
  • a trained as a wash chamber working chamber can already have a Double wall structure with a limiting the interior of the working chamber, continuously designed as a perforated wall drum wall and with a surrounding this Have outer wall.
  • a working chamber is the Providing the scoop pockets in a particularly simple way possible by in an advantageous development of the respective drum wall and they surrounding outer wall formed gap to form the Schöpfaschen a number of chamber plates are arranged.
  • the quantitative extent of the additionally accessible via the scoop pockets Washers or the traceable on the scoop pockets increases in Efficiency or washing performance are essentially conditioned by the geometric dimensions of the pocket pockets, especially compared to the dimensions of the working chambers and the usual operating conditions in the treatment of the wash liquor, in particular by their flow rate.
  • a particularly far-reaching increase in efficiency is achievable, in an advantageous embodiment of a working chamber over its circumference distributed about eight to twelve, preferably ten, scoop pockets are assigned.
  • the or each scoop pocket is expediently in the circumferential direction of associated with a working chamber bounded by a pair of chamber plates, with respect to a predetermined by the axis of rotation vertex an opening angle of 10 ° to 20 °, preferably of about 15 °, form.
  • the scoop pockets are in the rest position of the associated working chamber seen, advantageously arranged substantially in the lower outer area.
  • the further transport of the laundry from a working chamber in the direction of conveyance seen next working chamber can by any suitable Funds are made.
  • the working chambers sequentially continuous transport spiral.
  • the advantages achieved by the invention are in particular that by the lifting pockets made possible by the scoop pockets to a position above the laundry and the subsequent pouring of this Part of the wash liquor on the laundry an additional contribution to the differential speed between wash liquor and laundry is provided.
  • This is the result mechanical contribution to the washing result, ie the removal of impurities from the fibers as a result of a shearing action due to passing wash liquor, significantly increased compared to known countercurrent washing systems.
  • a new, radial speed contribution be associated with the appropriate geometric design in comparison effectively magnified, for example, the prevailing axial velocity contribution increased by a factor of 6 to 8, is.
  • the wash liquor used can be a gain of the Washing or rinsing capacity by up to 60% with all the resulting savings, for example, for the washing water used, give.
  • the countercurrent washing machine 1 of Fig. 1 comprises in the embodiment Thirteen working chambers 2, in a symbolized by the arrow 4 conveying direction x are arranged successively for laundry.
  • the in the conveying direction x seen first working chambers 2 are in the embodiment as Vorwaschhuntn 6 trained.
  • the following in the conveying direction x following seven other working chambers 2 are, however, as the actual wash chambers 8 formed and form the washing zone of the countercurrent washing machine 1.
  • An these close in the conveying direction x seen the last three as rinsing chambers 10 designed working chambers 2, which is the rinsing zone of the countercurrent washing machine 1 form. Deviating from this embodiment can of course also any other suitable number of working chambers. 2 be elected.
  • the working chambers 2 are each substantially cylindrical in the embodiment formed and pivotable about a common axis of rotation 12.
  • transport spiral 14 - also referred to as Archimedes screw - Fixed, which is in a rotation of the working chambers 2 with this turns.
  • a Filling funnel 16 arranged over the laundry to be washed in the in the conveying direction x seen first working chamber 2 can be introduced.
  • the fully treated Wash removable again is also provided at the opposite End of the countercurrent washing machine 1 .
  • suitable in the exemplary embodiment only indicated supply and discharge lines arranged for media, steam or wash liquor.
  • each working chamber 2 is a to the respective during a wash cycle
  • Working chamber 2 adapted treatment step of the laundry contained therein made in the prewash 6 a prewash, in the Wash chambers 8, the main wash and in the rinsing chambers 10 a rinse the laundry is done.
  • the working chambers 2 reversely pivoted about its common axis of rotation 12 back and forth, wherein when pivoting an angular range between 270 ° and 340 ° is covered.
  • the laundry located therein is compared to that in the respective working chamber 2 also located washing liquor kept in relative motion, so that on the one hand a good mixing of laundry and wash liquor and on the other hand, a differential speed between laundry and wash liquor is maintained.
  • the washing result in the respective working chamber 2 becomes on the one hand by the selected operating conditions, so for example by the temperature set there and by the chemical composition the detergents used.
  • the washing result but also only by mechanical effects, namely by a shearing action of the flowing past the laundry fibers water the Wash liquor on the adhering to the laundry fibers impurities, with affected.
  • each working chamber 2 as in the exemplary embodiment only by way of example is shown for one of the wash chambers 8, driving ribs 18 arranged. These lift when pivoting the respective working chamber 2 in it Wash out of the wash liquor and leave them by comparatively rush back into the wash liquor, with a significant difference in speed between laundry and wash liquor results.
  • scoop pockets 20, 22 provided for the wash liquor.
  • scoop pockets 20, 22 are for reasons of clarity only for two working chambers 2 scoop pockets 20, 22 shown.
  • 20, 22 can also at several, especially at all working chambers 2 be arranged.
  • the as a wash chamber 8 trained working chamber 2 comprises in the manner of a double-walled Design an inner, cylindrical shell-like trained drum wall 30, which limits the interior of the washing chamber 8.
  • the drum wall 30 is surrounded by an intermediate space 32 of a also substantially cylindrical jacket-shaped fixed outer wall 34 surrounded.
  • the gap 32 is to be acted upon the interior of the washing chamber 8 with media or detergents or for discharging spent wash liquor from the interior of the wash chamber 8 provided.
  • the drum wall 30 in essentially continuously formed as a perforated wall.
  • Perforation 31 allows a surface overflow of media from the gap 32 in the interior of the washing chamber 8 and back, the laundry is reliably retained in the interior of the washing chamber 8.
  • FIG. 2 seen in the rest position of the associated working chamber 2, arranged substantially in the lower outer region of ten drawers pockets 20.
  • the scoop pockets 20 are arranged in the intermediate space 32 and on the one hand by the outer wall 34 and the drum wall 30 and on the other hand, seen in the circumferential direction of the working chamber 2, limited by arranged in the gap 32 chamber plates 36.
  • the chamber plates 36 are positioned in the circumferential direction of the working chamber 2 so that they form an opening angle ⁇ of about 15 ° with respect to a predetermined by the rotation axis 12 vertex.
  • the scoop pockets 20 thus communicate with the interior of the respective wash chamber 8 over a large area through the drum wall 30 designed as a perforated wall.
  • the washing chamber 8 is shown in its rest position. In this position the laundry 40 is substantially in the bottom region of the washing chamber 8 at. Due to the perforation 31 of the drum wall 30 also flows part of the wash liquor in some or each of the scoop pockets 20, as shown in Fig. 2a by the Hatching is shown. In the further course of each washing cycle is the Wash chamber 8 is pivoted about the axis of rotation 12, so that in some the scoop pockets 20 separated part of the wash liquor on a comparison for laundry 40 elevated position in the washing chamber 8 is promoted. This is in FIG.
  • FIG. 2b shows a schematic view of a rotation rotated about the rotation axis 12 the washing chamber 8 is shown, wherein a likewise taking place movement of the Laundry 40 due to the driver ribs 18 for reasons of clarity only hinted is.
  • the by pivoting the wash chamber 8 in a comparison for washing 40 elevated position funded part of the wash liquor flows in this Position now again from the respective scoop pockets 20, like this symbolized by the arrows 42.
  • This effluent part of the wash liquor learns gravitational acceleration and finally meets with comparatively high speed on the laundry located in the washing chamber 8 40 on. This results in a comparatively high differential speed between the effluent from the scoop pockets 20 part of the wash liquor and the laundry 40, so that a particularly effective washing effect is achieved.
  • the washing chamber 10 is basically only single-walled with an outer wall 50 designed. At this are in the manner of an external attachment in the Embodiment arranged ten external scoop pockets 22. These are each outwardly by an outer wall 52 and in the circumferential direction of the Flushing chamber 10 bounded by chamber plates 54. To the interior of the washing chamber 10 towards the pockets are in this case 22 through the outer wall 50 of the washing chamber 10 limited.
  • the outer wall 50 of the washing chamber 10 in their respective scoop pocket 22 associated portion 56 also as Perforated plate designed so that at any time an overflow of wash liquor the interior of the washing chamber 10 in the respective scoop pocket 22 and back is possible.
  • the mode of action of the rinsing chamber 10 shown in FIGS. 3 a and 3 b associated scoop pockets 22 corresponds to that of the wash chamber 8 associated Scoop pockets 20.
  • After pivoting the rinsing chamber 10 about its axis of rotation 12 is in the respective Scoop bag 22 located wash liquor in a compared to the laundry 40th promoted elevated position, as shown in Fig. 3b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP02013689A 2001-06-27 2002-06-20 Procédé pour laver le linge et machine à laver à contre-courant pour réaliser ce procédé Expired - Lifetime EP1273691B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10130990 2001-06-27
DE10130990.2A DE10130990B4 (de) 2001-06-27 2001-06-27 Gegenstromwaschmaschine

Publications (3)

Publication Number Publication Date
EP1273691A2 true EP1273691A2 (fr) 2003-01-08
EP1273691A3 EP1273691A3 (fr) 2006-04-12
EP1273691B1 EP1273691B1 (fr) 2011-12-21

Family

ID=7689638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02013689A Expired - Lifetime EP1273691B1 (fr) 2001-06-27 2002-06-20 Procédé pour laver le linge et machine à laver à contre-courant pour réaliser ce procédé

Country Status (5)

Country Link
EP (1) EP1273691B1 (fr)
AT (1) ATE538233T1 (fr)
DE (1) DE10130990B4 (fr)
DK (1) DK1273691T3 (fr)
ES (1) ES2383555T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108315967A (zh) * 2017-01-16 2018-07-24 青岛海尔滚筒洗衣机有限公司 一种洗涤剂和/或柔顺剂投放盒及洗衣机

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812386A1 (de) 1998-03-20 1999-09-23 Senkingwerk Gmbh Kg Verfahren zum Waschen von Wäsche und Waschmaschine zur Durchführung des Verfahrens

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE479594C (de) * 1926-06-02 1929-07-23 Charles Laroche Waschmaschine
GB1000033A (en) * 1961-09-21 1965-08-04 Polymark Int Ltd Improvements in laundry washing machines
DE3631724A1 (de) * 1986-09-18 1988-03-31 Licentia Gmbh Programmgesteuerte waschmaschine
CA2066293C (fr) * 1991-04-19 1995-05-16 Hidetoshi Ishihara Methode de lavage au moyen d'une machine a laver a fonctionnement continu
DE19925917A1 (de) * 1999-06-07 2000-12-14 Bsh Bosch Siemens Hausgeraete Von vorn beschickbare Waschmaschine mit einer drehbaren Wäschetrommel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812386A1 (de) 1998-03-20 1999-09-23 Senkingwerk Gmbh Kg Verfahren zum Waschen von Wäsche und Waschmaschine zur Durchführung des Verfahrens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108315967A (zh) * 2017-01-16 2018-07-24 青岛海尔滚筒洗衣机有限公司 一种洗涤剂和/或柔顺剂投放盒及洗衣机

Also Published As

Publication number Publication date
EP1273691B1 (fr) 2011-12-21
ES2383555T3 (es) 2012-06-22
ATE538233T1 (de) 2012-01-15
DE10130990A1 (de) 2003-01-30
DE10130990B4 (de) 2016-10-27
EP1273691A3 (fr) 2006-04-12
DK1273691T3 (da) 2012-04-16

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