DE2059308A1 - Method and arrangement for rinsing out washing liquor from fabric articles - Google Patents

Description

p. 1384

PATENT LAWYERS

Dr .-! Ng. HANS RUSCHKE Dlpl.-lr.D- 5.-INZ AGULAR

Bcfu.ir-Yes aa
Auguaia-Viklorla-Strala Ci

Steiner Company Lausanne S.A., Lausanne, Switzerland

Procedure and. Arrangement for rinsing out detergent solution from fabric articles

The present invention relates to methods and arrangements for the industrial treatment of soiled fabric articles and in particular a method and an arrangement for rinsing washing liquor out of the fabric articles by using a rinsing mist forces through them.

The dishwasher of the present invention is an improvement of a device disclosed in US-ES 3 4 ^ 9,365. These Rinsing device certainly has the desired effect of rinsing washing liquor out of these entualtenden tissue articles. It arise However, difficulties arise from the fact that the rinsing liquid and the washing liquor collect like puddles on the fabric articles and so the amount of mist that passes through it, reduce. The novel method and arrangement of the present Invention eliminate the above mentioned problem by here the flushing mist on a tap perpendicular to the articles

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through this hiriduroh is forced what the formation of puddles prevented.

The present invention therefore relates to an arrangement for rinsing out washing liquor from fabric articles, consisting of a Rinsing unit with a pressure chamber to form a mist from a gas and a rinsing liquid, from a transport device, which guides the articles on a predetermined path past the washing unit, a nozzle for the washing unit with two Spaced walls that form a passage between them through which the mist is expelled from the pressure chamber under pressure and being forced through the articles on the conveyor, those adjacent the exit end of the nozzle Walls are arranged substantially perpendicular to the aforementioned predetermined path in order to prevent them from moving create puddles of washing liquid and washing liquor on the article and reduce the amount of mist that passes through, and off a collecting vessel that is so close to the transport device is arranged that it catches the mist and the washing liquor entrained when penetrating the article, whereby the washing liquor is flushed out of the articles.

The present invention further relates to a method for rinsing wash liquor out of fabric articles, comprising the formation a pressurized mist of a gas and a rinsing liquid, the transport of the articles along the predetermined Path, orienting the mist in a direction perpendicular to the articles transported along the predetermined path, to force the mist through the articles perpendicular to the articles and thereby prevent them from settling on the articles Creating puddles of washing liquor and rinsing liquid, reducing the amount of mist that passes through, and collecting the mist and the wash liquor entrained as the articles pass through so as to rinse the wash liquor out of the articles.

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2059305

An essential feature of a preferably used embodiment the invention is to prevent the formation of puddles of rinsing and washing liquid on the surface of the Flat laundry, in that the nozzle is arranged at right angles to the path of the flat laundry and the nozzle walls the surface of the transport device touch. These features prevent the formation of puddles and keep the amount of mist passing through constant. As already stated, the formation of puddles on the flat linen is highly undesirable as it reduces the amount of water caused by Reduce the flat laundry of forced through mist of washing liquid and steam and thereby impair the washing effect.

The drawings show the following:

Fig. 1 is a schematic representation of a machine with the arrangement according to the present invention, in which the carried washing liquor is rinsed out of the fabric items after this a so-called loop or a circulation washing machine ("orbital washer").

Figure 2 is a schematic illustration of an arrangement for further rinsing forming part of the invention the fabric article.

Fig. 5 is a side view of a drive mechanism for the transport device for the siphon washer ("siphon surge rinser"), the rinsing and collecting parts being omitted for greater clarity.

FIG. 4 is a front view of the washer shown in FIG. 3.

Fig. 5 is a partially sectioned side view of the Spülü, and aeigt the transport device, the Spüleiri) direct and their reception units.

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6 is an end view, partly in section, of a flush unit; which shows the mutual arrangement of the pressure chamber, the transport device and the collecting vessel.

Fig. 7 is a section through part of the assembly taken along line 7-7 of Fig. 6 and showing the mutual arrangement the nozzle and the transport device.

Fig. 8 is an enlarged section through part of the appendix in Fig. 7

The flush assembly disclosed herein is specially designed for use in a complete, enclosed industrial laundry facility, as shown in the aforementioned US Pat. No. J 4j59 j5ü5. In general the rinsing arrangement is used to rinse out the wash liquor from the fabric items after it has passed through a dirt loosening and / or washing stage remains in them. Fig. 1 shows schematically an example in the form of a so-called loop or 525 * rotary washing machine with a siphon washer 710 cooperates according to the present invention. The noose or rotary washing machine 525 corresponds to application case B, which is filed at the same time as this; Further details can be found in this application and are available here not repeated. In short, the washing machine includes 525 a tank 5jX) and a transport device for the flat laundry 675 through a detergent solution in the tank. the staggered rollers 655 of the hanger 020 run in the tank 530 on single shafts 625 and form a winding path, along which the flat linen 675 the tank 5 ^ 0 in which it is washed, passes through.

The transport device has an upper belt 690 and a lower one Belt 697 that converge to form a layered waistband stretch in which the flatwears 75 through the washer 525 is performed.

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The washed flat linen 675a * which is along the drainage part of the The lower belt 697 exits the washing machine 525 is in a siphon push flushing device 7IO given. The flushing device 710 has a pair of spaced-apart U-shaped frames 715, each with two spaced-apart legs 7I6, which are connected to one another by a bracket 717. At the same time, the frames 715 are connected to one another by the cross members 718, which means that the flushing device 7IO has both fixed as well as stable frame results. The U-shaped Frames 715 also have two lateral supports 721, which are generally parallel to temples 717 and in some Distance down from these run away. The support "721 extends between the legs 716; the lateral Supports 721a and 721b run horizontally outwards away from the legs 716 and lie above the support 721. Four vertical ones Supports 722 extend from each support 721 upward and are adjacent to the legs 716 of the U-shaped frame 715 for a purpose discussed below. Also provided are the vertical supports 722a, which also run up and down from each support 721, as well as the vertical ones Supports 722b extending upward from each bracket 717 extend. All of the supports described here are intended to support the drive mechanism and the transport device, which are described below. J

In the right U-shaped frame 715 (see. Fig. 4) is a plurality hollow shafts 725, which extend perpendicular to the plane of the frames 715, are rotatably supported in bearing blocks 726 walk and carry the gears 727 at the other end; the shafts 725 are supported by the aforementioned supports 721, 721a, 721b, 722, 722a and 722b. Immediately to the frame ^ lp the shafts 725 are surrounded by spacer sleeves 728, which to / still have the shape of tubes for the explanatory purpose. A plurality of hubs are located on the shafts 725 between the spacer sleeves 728 730 arranged, the hubs 650 in the loop or rotary washing machine 525 are constructed similarly and also with

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Tongues and grooves (not shown) are provided, each hub 730 having a roller 735 consisting of a wheel rim 736 and the spokes 737 carries, which extends radially away from the hub 730 to the wheel rim 736 extend. As can be seen, leave the spacer sleeves 728, in combination with the hubs 730, there is relatively little room for the rollers 735 to move laterally.

Still referring to Figure 3, there is an upper endless chain 740 and a lower endless chain 741 is provided, the upper endless chain 740 turning counterclockwise around the toothed

^ wheels 727h, 7271, 727j and 727k moved. The lower endless Chain 741 runs clockwise around sprockets 727a-727g, like it is shown in the figure with a pair of idle wheels 745 on a pair of spaced apart stands and im generally parallel shafts 746 is provided and the wheels 745 serve to bag the lower endless chain 741 taut. The lower endless chain 741 is driven by a motor 750, which is mounted on a plate 75I and its drive shaft 752 is firmly connected to a drive gear 752. The drive gear 753 is via an endless chain 754 with an outer Gear 755 connected that is firmly seated on a rotatable shaft 756, which continues to carry an internal gear 757. As can be seen starting the motor 75O generates a

™ Rotation of its drive shaft 752, which in turn drives the endless chain 754 counterclockwise and thus also rotates the outer gears 755 and the shaft 756 counterclockwise. Lower endless chain 741 runs over gears 727a, 727b, 727c and 727d, under inner gear 757, and up over gears 727e, ^r {2Jf and 727g, causing counterclockwise rotation of gear 757 to rotate the lower endless chain 741 and thus the gears 727 and thus the rollers 735, which run on the shafts 725 carrying the aforementioned gears 727a-g, in a clockwise direction.

The movement of the upper endless chain 740 in the counterclockwise direction is associated with it by a drive chain 76O between the drive .

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wheel 761 and a drive gear 762 on that of the motor 750 driven shaft 756 granted. As shown, an idle gear 765 is also provided. The upper endless chain 740 passes under the gears 727h and 7271 and over the gears 727j and 727kj after it passes the gear 727j it runs under the outer gear 765. One Rotation of the outer gear 765 and the inner gear 767 clockwise bearing shaft 766 thus creates movement of the chain 740 and thus a rotation of the toothed wheels 727h-k, the associated shafts 725 and the rollers carried by them counterclockwise. From the above, it can be seen that an upper endless chain 740 moving counterclockwise and a lower endless chain 741 moving clockwise are provided.

As already explained, the upper endless chain 740 causes the Gears 727h - 727k, and with them the corresponding shafts 725, rotate counterclockwise, while the lower is endless Chain 741 ensures that the gears 727a - 727g and thus the corresponding shafts 725 rotate clockwise. The associated shafts 725 each carry a plurality of Rollers 735 * which move in the same direction as the assigned one Rotate shaft.

As can be seen most easily from FIG. 5, there is a transport device 770 provided, which consists of a lower endless belt 780 having a mesh fabric, the band 78O consisting of foudrinier -artigem mesh fabric and of corrosion-resistant Material such as reddish-free steel or a suitable plastic is made, as well as an upper endless belt 790 of mesh fabric, which is also made of a corrosion-resistant material consists. The lower mesh belt 780 and the upper mesh belt are carried and transported by the rollers 735, wherein lower band 780 and upper band 790 are arranged so that a distance 795 results over which they lie on top of one another in a layered manner and there guide the flat linen 675a between them.

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The upper endless belt 790 and the lower endless belt 78O So work together to give the flat laundry 675a a predetermined to transport along a horizontal track. It should be noted here that bands 78O and 790 are different constructed as the mesh belts of the transport device 67O and are wide enough to transport flat linen in the form of ten adjacent towel strips - in a similar way Like the transport device 670, the flat linen 675 dui'ch leads the loop or rotary washing machine 525.

The path 795 of the transport device 770, over which the lower endless belt 78O and the upper endless belt 790 lie on top of one another and the flat linen 675a is between them, runs past a plurality of spool units 800 on a horizontal path. The flushing units 8OO are one below the other constructed identically; for the sake of a brief and simple explanation, only one of them will therefore be described. as Example three flushing units 8OO are shown, which for purposes of distinction, Where necessary, reference letters added to the reference number are individually identified. The rinsing units each have a steam distributor 805, the generally U-shaped in cross-section and has two upstanding, spaced-apart side walls 806 extending through a upper wall 807 extending transversely to them are connected. These side walls 806 have outwardly pointing and at their ends one-piece mounting flanges 808 with them, which are fixedly and appropriately attached to a horizontal bottom wall 809 are, which in turn has a plurality of spaced apart openings 810. The flushing units are arranged in such a way that that their longitudinal dimension is perpendicular to the path of the superimposed Section 795 of the transport device 770 extends. As seen in Figure 6, each is the steam manifold 805 inclined from the right to the left side of the illustration to a larger vertical dimension of the side walls on the left 806 as to be generated on the right and thus one which decreases equally with the movement of the steam from left to right

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Volume in order to have an even pressure at the inlets 84-9 maintain.

A mixing chamber 815, as shown in FIG. 7, is located under the bottom plate 809 of each of the manifolds 805. All mixing numbers are identical to one another and contain two spaced apart and diagonally inwardly inclined side walls 8l6, at the upper ends of which there are one-piece and outwardly extending mounting flanges 8l8. These mounting flanges 818 are fastened in a suitable manner to the base plate 809 of the steam distributor 805. As seen in Fig. 7, which run Scitenwände 8L6 each mixing chamber 815 diagonally downward% to a point 823, from a straight line to extend perpendicularly from the. These rectilinear vertical parts 824 are arranged in such a way that they form a right angle with the superimposed part 795 of the transport device 770, the two rectilinear vertical parts 824 of the side walls 816 forming a nozzle 825. Furthermore, the steam distributors 805 and the mixing chambers 8l5 each have a front wall 827 and a rear wall 828 (cf. Steam distributor 805 attached.

Outside of each of the nozzles 825 and suitably on them attached are two generally L-shaped shoes 835. » which serve a purpose set out below. Referring to FIG. 8, the shoes each have a straight vertical portion 836 suitably attached to the straight vertical parts 824 forming the nozzle 825, as well as horizontally outwardly extending parts 837 * which in general runs parallel to the layered section 795 of the transport device 770. At the far ends of the horizontal Parts 837 of the shoes 835 are in one piece with these, to the bent Enuen or guides 838, with the shoes 835 were provided with the ends 838 essentially in order to prevent the mesh ribbons 780 and 790 from being drawn out.

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Within the mixing chamber 815 there is a multiplicity of spacing elements at points arranged along its length 845, which are generally parallel to the direction of movement of the transport device 770, i.e. generally transverse to the longitudinal dimension the mixing chamber, extend. Two spacers each 845 are in contact with a partition wall 840, wherein a plurality of partial walls 846 each over every width of the mixing chamber 815 and each partition wall consists of two side walls 847 which extend diagonally inwards and upwards extend away from spacers 845; the side walls 847 are connected to one another by a horizontal upper wall 849, each of the top walls 849 having an opening 850 that opens onto a corresponding opening 8IO in the bottom plate 809 the steam manifold 805 is aligned .. The partitions 846 lead to uniquely shaped nozzles for the flushing unit 800. It it should be noted that the spacer elements 845 are kept very narrow because along the part of the flat linen 675a, which runs directly under the spacer elements 845, none Rinsing effect is possible.

Each mixing chamber 815 contains a weir 855 for the formation of a water supply, the weir 855 has a straight portion 856 extending downwardly and to one of the straight perpendicular ones Parts 824 that form the nozzle 825. The 855 weir also has a part inclined upwards and diagonally outwards 857 which extends from and is integral with straight part 856; this part 857 increases di ^ strength, ..in The lower part of each of the mixing chambers 815 is suitably sized a water distributor 860 is attached which supplies water to the chamber formed by the weir 855 and the associated λ and 816. The water distributor 86Ο has an elongated housing 86Ι that extends substantially the entire length of the mixing chamber 815 and has a central bore 862 that extends extends from one end of the manifold housing 861 to but not through the outer end. To stand at a distance Points along the water manifold 860 are a plurality of inlet ports 865 that are generally perpendicular

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Central bore 862 and establish a connection between the central bore 862 of the water distributor and the chamber formed by the weir 855 and the wall 8l6 of the mixing chamber 815. It is pointed out here that each of the inlet openings 83 is aligned with one of the plurality of openings 864 in the corresponding side wall 816 in order to create the aforementioned connection. Each of the water distributors 860 is furthermore provided with supply lines 865a-c for the flushing liquid, which run from a flushing liquid reservoir to the associated distributor. The same 865 is provided to the tube 865d of the unit 800d, an inlet tube having a valve 867 with a control shaft 868 g. As can be seen, the rinsing units 800a-c are arranged from left to right in the direction of movement of the flat laundry 675a. The rinsing liquid - in the preferred embodiment water - enters the rinsing unit 800d and flows from there, as explained below, to the unit 800c in order to achieve a countercurrent of the rinsing liquid and the flat laundry 675a, as is described below.

The rinsing units 8OO are also provided with a steam line 87O, which leads from a horizontal steam supply line 875 to a valve QfJ , with the control stem 878 of which the amount of steam allowed from the supply line 875 into the line 870 is adjusted. An M plurality of vertical line sections 87Oa, 870b and 87Oc extend downward from the line 87O, these vertical sections being suitably connected to the steam manifolds 805 via a fitting 879 in the front wall of each of the flushing units 800. It should be noted that while each steam manifold 805 has its own steam line section 870a-c, only the last mixing chamber receives the inlet water from the supply line 865.

There are a number of them under the transport device 770 of collecting vessels 880, with one for each rinsing unit 8OO Collecting vessel is provided. The collecting vessels 88O are under-

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constructed identically to each other; therefore only one is described for the sake of a brief illustration. Each collecting vessel 880 has a pair of inwardly inclined side walls 881 which are joined together at the bottom so that one is in cross-section heart-shaped arrangement arises. The side walls 881 are curved inwardly at the top, around an arcuate portion 882 and themselves from there to form inwardly extending flanges 88j, one straight part 884 running generally parallel to the transport device 770 and one bent downwards Have part 885 which is integral with the straight parts 884. Each of the receptacles has a front wall 888 and a Rear wall 889. The opening between the opposing downwardly curved portions 885 of the plank 883 is on the Aligned nozzle 825 of the associated flushing unit 8OO. the end the forehand 888 of the collecting vessel 880 extends a

out
Output line 89O, which is fastened to the front wall 888 in a suitable manner by means of a fitting 89I. As shown in FIG. 5, the output line 89O leads in each case one of the collecting vessels 88Oa, 88Ob, 88Oc from this to a pump 895 * which pumps the liquid from the line 89O through the closest inlet pipe 965 to an associated distributor 86O - as in FIG 5 shows - the flat laundry 675 & in the layered part 795 of the transport device 770 past the rinsing units 86Oa, 800b, 800c, the liquid from the rinsing unit is collected by the associated collecting vessel and through the outlet pipes 890a, 890b, 890c and the associated pumps into the next assigned water distributor 860b or 86Oa in order to achieve a counterflow of the rinsing liquid against the movement of the flat laundry 675a.

In actual operation, a rinsing liquid such as water is used introduced into the water distributor 86Od from a water supply line 8ö5, the valve 867 controlling the amount of the introduced Water controlled. The water measured in the distributor 8bOc f passes through the large number of spaced inlet openings 86 ^ into the mixing unit and forms 8 ^ 'ji behind the weir a water supply. The water behind the 855 weir rises

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long until it overflows the diagonally inwardly curved part 857 of the weir 855. Simultaneously with the introduction of the water Steam is also introduced into tube 865 through steam supply 875 into steam line 87O under control through valve 877, the steam from line 370 flows into the supply lines 87Oa, 87Ob and 87OC and through them into the assigned steam distributors 805a, 805b and 805c this through the aligned openings 809 in the bottom plate 809 and 850 in the top wall 849 and enters the mixing unit 815 a. The steam flowing into the mixing unit comes into contact with the water and J overflowing the weir 855 forms with this a mist which is expelled through the nozzle 825 under pressure as a result of the steam pressure in the mixing unit 815 will. This nozzle 825 is at right angles to the transport device 77O and therefore directs the mist of steam and water at right angles to the flat linen 675a carried by the device 770.

The outflow of washing solution and mist flows into the assigned collecting vessel 88O, i.e. initially into the collecting vessel 88Oc. For the purpose of explanation, the processes are broken down here step by step; in actual operation they all play out Operations, however, at the same time. When draining into the collecting vessel 880c, the drainage is through this vessel into the outlet pipe 890c and from there into the associated pump 895, which it up into the distributor 86Ob of the flushing unit 800b pumps to a countercurrent of the outflow from a collecting vessel to the next assigned rinsing unit and thus the amount of rinsing liquid used during the process to limit. The outflow from the flushing unit 800c is into the manifold 360b and, as previously described, the mixing chamber 815b to be mixed there with the steam supplied through line 870b. As well as the drain associated with it Weir 055b overflows to form a fog, it becomes under Pressure expelled through the nozzle 825b ', which is angled at right angles to the flat laundry 675a guided under it. It will

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noted that the upturned ends are 8 ^ 8 of the Shoes 835 ensure that the -d & e · wire mesh conveyor belt 790 does not show itself. In the same way, the downwardly bent parts 885 prevent the inre η curved parts Flanges 883 exposing the mesh of the lower belt 78Ο.

The outflow from the detergent solution and the mist that the rinsing unit 800b is generated by the associated collecting vessel 38Ob collected and passed through the outlet pipe 89Ob to the associated pump 895b, which it to the distributor 860a of the next assigned flushing unit 88Oa presses. The process already described is repeated in the flushing unit 800a, its outflow is now collected by the associated collecting vessel 88Oa and discharged therefrom through the outlet pipe 890a. The associated pump 895a pumps the collected liquid from the vessel 88Oa through a drain pipe 896 into the (not shown ) Sewer system. It should be noted that the flat laundry 675a brought in from the washing machine 525 Running into the rinsing unit 710 leads to a considerable proportion of wash liquor. When leaving the rinsing unit contains 7IO the flat laundry no - or only very little - detergent solution; in this rinsed state it is denoted by 675b.

After leaving the washer 7IO, the flat laundry is 675b exposed to acidification of a spray device 900, which a Sprayed bleach, and then, as shown in Fig. 2, applied to a retardation belt 905.

The delay band 905 allows the bleach to enter the permeable Penetrate cloth fabric. It has drive gears 907 which are rotatably seated on drive shafts 90S, as well as an upper one endless belt 910 and a lower endless belt 915 · The belts are supported by a variety of free-running gears 917 * die walk on shaft 918, held taut. According to length and speed is dc.s delay belt 905 constructed in such a way that that the bleach sprayed on by the spray device 900 is a

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certain time is available to take effect.

When leaving the delay belt, the flat laundry is 675b Applied to a further conveyor belt 770a, which leads them to a rinsing device T10a, which has a rinsing unit 800d, a conveyor belt 77Oa and a collecting vessel 880d, all of which are identical to the units described above. When passing the Flat laundry 675b at the nozzle of the rinsing unit 800d becomes a mist pushed through them from water and steam under pressure. The assigned collecting vessel 880d catches the drain. To after leaving the fourth rinse stage 710a, the flat laundry 075b is once again exposed to a spray device 99Oa, which has a " Sprayed on acidulant. The flat linen that is after this Acidification is denoted by 675c, then runs to an extractor 925 * which removes all excess from the flat linen 675c Removes moisture. Thereafter, the flat linen 075c is preferred sent through a dryer (not shown).

- patent claims -

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Claims (7)

Claims (V) methods of rinsing wash liquor out of fabric articles, by creating a mist of a gas and a flushing liquid under pressure, the articles on a predetermined path leads, directs the mist against the articles guided on the predetermined path in order to force it through them, and by one catches the mist and the detergent solution carried along with the penetration of the article, characterized in that the Fog leads on a path perpendicular to the direction of movement of the article, so that the mist passes through the article at right angles is forced. 2. The method according to claim 1, characterized ge characteristic ze ic line t that steam is used as the gas and water as the rinsing liquid. 3. Arrangement for carrying out the method according to claim 1 or 2, in which the rinsing unit has a pressure chamber 2; ur generation of a mist from a gas and a rinsing liquid, and a nozzle for the rinsing unit, which nozzle has two spaced walls that between them form a passage through which the mist is ejected from the pressure chamber under pressure, and a collecting vessel attached to the transport device, which is arranged in such a way that it catches the mist and the detergent solution carried along by it when it penetrates the article, 10988S / 1607 characterized in that the parts of said walls adjacent to the nozzle opening are substantially perpendicular to the direction of movement the article is on the direction of transport. 4. Arrangement according to claim 3 _X, characterized in that the nozzle has a length which is substantially equal to the width of the conveyor belt. 5. Arrangement according to claim 4, characterized in that the longitudinal dimension of the nozzle is essentially transverse to the direction of movement of the transport device. J 6. Arrangement according to claim 2. » 4 or 5j characterized by that the nozzle opening has dyan attached guide links, which have outwardly extending parts which are arranged parallel to and very close to the transport device. 7. Arrangement according to claim 6, characterized in that the guide members L ~ shaped members with a vertical part have, which is attached to the corresponding wall part of the DU opening, as well as with a horizontal part, which is located in the extends generally parallel to the transport device, wherein the outer end of the horizontal part is bent upwards. Cl./Br. 109885/1607