DK167536B1

DK167536B1 - DEVICE FOR ADDING A PIECE OF LAUNDRY

Info

Publication number: DK167536B1
Application number: DK201789A
Authority: DK
Inventors: Uwe Wenck
Original assignee: Peters & Wenck E & E Co
Priority date: 1988-04-27
Filing date: 1989-04-26
Publication date: 1993-11-15
Also published as: DK201789A; EP0339430A1; DK201789D0; EP0339430B1; DE8805577U1; DE58901797D1

Description

Ulv lb/bdb K l iWolf lb / bdb K l i

Opfindelsen angår en indretning til at føre et stykke vasketøj frem til en tøj rulle eller lignende, og som omfatter en før denne tøjrulle anbragt drevet transportør, ved hvis forende der er anbragt en oplægningsliste, 5 som kan trækkes ud under et stykke vasketøjs på listen lagt forende for at lægge denne ned på transportøren, hvorefter vasketøjet transporteres i retning af tøjrullen eller lignende.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a device for conveying a piece of laundry to a clothes roll or the like, and comprising a driven conveyor arranged prior to this roll of rollers, at the front of which is provided a laying strip 5 which can be pulled out under a piece of laundry in the list. front to place it on the conveyor, after which the laundry is transported in the direction of the cloth roll or the like.

10 Der kendes tilførselsindretninger af denne art.10 Feed devices of this kind are known.

Ved anvendelse af sådanne tilførselsindretninger opstår der problemer, når det stykke vasketøj, der skal transporteres, har en i transportretningen forholdsvis stor 15 længde, som i hvert fald er større end den højde, hvori transportøren ligger over gulvet. Disse problemer beror på, at de vaskede stykker vasketøj i videst muligt omfang bringes direkte fra en tumbler til tilførselsindretningens oplægningsende i moderne vaskeribedrifter, hvorved 20 det principielt ønskes eller, som det ofte er tilfældet, ligefrem kræves, at vasketøjsstykkerne, før de lægges på tilførselsindretningens transportør, bredes ud eller hænges op, for at de kan tilføres tøj rullen eller en lignende indretning i en omtrent udstrakt tilstand.When using such feeders, problems arise when the piece of laundry to be transported has a relatively long length in the transport direction which is at least greater than the height at which the conveyor is above the floor. These problems are due to the fact that, as far as possible, the washed pieces of laundry are brought directly from a tumbler to the delivery end of the delivery device in modern laundry establishments, where it is in principle desired or, as is often the case, even required that the laundry pieces be placed before they are applied to the delivery device. conveyor, is widened or suspended so that they can be fed to the clothes roller or similar device in an approximately extended state.

2525

Til udbredning af vasketøjsstykkerne er der udviklet indretninger, som indsættes foran tilførselsindretningen, og hvori vasketøjsstykkets forende hensigtsmæssigt føres således, at vasketøjsstykket i det mindste på et sted 30 kommer til at hænge frit over gulvet i sin fulde længde.In order to propagate the laundry pieces, devices have been developed which are inserted in front of the delivery device and in which the front of the laundry piece is suitably guided so that the laundry piece will hang freely over the floor at least at a full length 30.

Disse indretninger er forholdsvis komplicerede og dermed dyre, og desuden optager de forholdsvis megen plads.These devices are relatively complicated and thus expensive, and in addition they take up relatively much space.

Der kunne også i gulvet ved tilførselsindretningens for-35 reste ende tænkes indrettet en grube med en sådan dybde, at et stykke vasketøj, som méd sin forende var langt på transportøren, kunne hænge frit nedefter. En sådan ud- 2 formning er forholdvis omstændelig at tilvejebringe og skal i givet fald fjernes, såfremt tilførselsindretningen skal installeres et andet sted. Desuden er der en vis fare for betjeningspersonalet, hvis der skal sikres et 5 enkelt frit fald af vasketøjsstykkets bagende ned i gruben, idet den åbne grubespalte i sådanne tilfælde da skal være forholdsvis bred.A pit could also be arranged in the floor at the front end of the feeder device so that a piece of laundry which, with its front end was far on the conveyor, could hang freely downwards. Such a design is relatively cumbersome to provide and, if necessary, must be removed if the supply device is to be installed elsewhere. Furthermore, there is some danger to the operating staff if a single free fall of the rear of the laundry piece is to be secured down into the pit, in which case the open pit gap in such cases must be relatively wide.

Det er derfor formålet med opfindelsen at anvise en til-10 førselsindretning af den indledningsvis nævnte art, som på enkelt måde og med enkle midler kan ophænge sådanne lange vasketøjsstykker ved hjælp af en ekstra vertikal op- og nedadgående bevægelse, som oplægningslisten er i stand til at udføre.It is therefore the object of the invention to provide a feeding device of the kind mentioned in the first, which can easily and with simple means hang such long pieces of laundry by means of an extra vertical up and down movement which the laying list is capable of to carry out.

1515

En sådan fri ophængning af lange vasketøjsstykker opnås ifølge opfindelsen med en indretning med de i krav l's kendetegnende del angivne karakteristika, idet tilførselsindretningens allerede forhåndenværende oplægnings-20 liste anvendes til at bibringe vasketøjsstykket en så stor opadgående bevægelse, som er nødvendig til at få vasketøjsstykket til at hænge frit nedad.Such free hanging of long laundry pieces is achieved according to the invention with a device having the characteristics specified in the characterizing part of claim 1, in that the already available laying list of the delivery device is used to impart such an upward movement as is necessary to cause the laundry piece to to hang freely down.

Hensigtsmæssige udførelsesformer ifølge opfindelsen er 25 angivet i underkravene.Suitable embodiments of the invention are set forth in the subclaims.

Opfindelsen forklares nærmere nedenfor, idet der beskrives en eksempelvis udførelsesform under henvisning til tegningen, hvor 30 fig. 1 skematisk set fra siden viser en udførelsesform for en tilførselsindretning ifølge opfindelsen, og 35 fig. 2 samme set forfra.The invention is explained in more detail below with reference to an exemplary embodiment with reference to the drawing, in which FIG. 1 is a schematic side view of one embodiment of a feeding device according to the invention, and FIG. 2 the same from the front.

Ulv Ib/DJb b IWolf Ib / DJb b I

33

Som vist har tilførselsindretningen et ikke nærmere beskrevet stativ G, hvorpå der på kendt måde er anbragt en drivbar transportør 1 til at transportere et på denne lagt stykke vasketøj i retning mod en tøjrulle eller 5 lignende indretning. Transportøren 1 kan hensigtsmæssigt være udformet som en i og for sig kendt bæltetransportør, og i en vis afstand bag dennes forende befinder der sig en trykvalse la. Vasketøjsstykket passerer mellem denne og transportøren 1, og når dets forende først er løbet 10 gennem klemstedet mellem trykvalsen la og transportøren 1, kan vasketøjsstykkets bagende udsættes for en modsat transportretningen virkende trækkraft til at udspænde eller strække vasketøjsstykket. Det er til dette formål kendt at indrette én under transportørens forende cirka 15 vandret eller skråt anbragt sugekanal S, i hvis åbning, der ligger omtrent under transportøren l's forende, der kan indsuges den bageste ende af et vasketøjsstykke, hvis forrreste ende allerede er lagt på transportøren 1 og hensigtsmæssigt er løbet gennem klemstedet mellem tryk-20 valsen la og transportøren 1. Ved sin forendes øvre kant kan sugekanalen S have en strækmetaldel (ikke vist) med bøjede forkanter, hvorover vasketøjsstykket trækkes under transporten, hvorved vasketøjsstykket påvirkes af en strækvirkning på tværs ved hjælp af de bøjede kanter. Ved 25 sugekanalens S forende kan der være anbragt en indkoblelig rulle R til at bidrage til eller bevirke, at vasketøj sstykkets bageste del føres ind i sugekanalen S.As shown, the feed device has an unspecified rack G, on which is known, in a known manner, a drivable conveyor 1 for transporting a piece of laundry laid thereon in the direction of a clothes roll or similar device. Conveniently, the conveyor 1 can be formed as a belt conveyor known per se, and at some distance behind its front end there is a pressure roller 1a. The laundry piece passes between it and the conveyor 1, and once its front end has passed through the terminal 10 between the pressure roller 1a and the conveyor 1, the rear end of the laundry piece may be subjected to a pulling force acting opposite the conveying direction to tension or stretch the laundry piece. For this purpose, it is known to arrange one suction duct S located approximately below the front end of the conveyor, in the opening of which lies approximately below the front end of the conveyor 1, which can be sucked into the rear end of a laundry piece, the front end of which is already laid on the conveyor 1 and suitably has passed through the clamping place between the pressure roller 1a and the conveyor 1. At the upper edge of its front end, the suction duct S can have an elongated metal part (not shown) with curved leading edges, over which the laundry piece is pulled during transport, whereby the laundry piece is affected by a stretching effect on the across using the bent edges. At the front of the suction duct S, a switchable roller R may be provided to assist or cause the rear portion of the laundry to be inserted into the suction duct S.

Alternativt kan der under transportøren være anbragt et 30 sæt parvise trækruller (ikke vist), hvortil der hører en fortrinsvis svingbar rulle, hvormed den bageste del af et stykke vasketøj kan bringes ind i klemstedet mellem et par trækruller. Trækrullerne kan være drevet således, at de påvirker vasketøjsstykket med en strækvirkning på 35 langs, når vasketøjsstykket transporteres på transportøren. Også ved denne udførelsesform kan der mellem trækrullerne og transportøren være indrettet en strækmetaldel 4 med bøjede forkanter.Alternatively, there may be arranged under the conveyor a set of pairwise pull rollers (not shown), to which a preferably pivotable roll may be provided, whereby the rear of a piece of laundry may be brought into the clamping place between a pair of pull rollers. The pull rollers may be driven such that they affect the laundry piece with a stretching effect of 35 long when the laundry piece is carried on the conveyor. Also in this embodiment, an extension metal part 4 with curved leading edges may be arranged between the pull rollers and the conveyor.

Ved den viste udførelsesform kan der cirka foran og over transportøren 1's forende være anbragt en oplægningsliste 5 2, som består af én i det væsentlige vandret oplægnings del 2a og én ved dennes bagkant anbragt vertikal bæredel 2b. Oplægningsdelen 2a er forsynet med et stort antal luftgennemgangsåbninger 2c og med en ikke vist fotocelle, hvis betydning senere vil blive nærmere forklaret.In the illustrated embodiment, a laying strip 5 2 can be arranged approximately in front of and above the front end of the conveyor 1, which consists of one substantially horizontal laying part 2a and one vertical supporting part 2b located at its rear edge. The mounting member 2a is provided with a large number of air passage openings 2c and with a photocell not shown, the significance of which will be explained in greater detail later.

10 På bagsiden bærer den vertikale bæredel 2b styreelementer (ikke vist), eksempelvis i form af ruller, som løber i styrebaner, som er udformet i lodrette støtter 8 på en svingramme 7, der ved styrebanernes øvre ender er sving-15 bart anbragt på passende bærearme 10, som er fastgjort på tilførselsindretningens stativ G.10 At the rear, the vertical support member 2b carries guide elements (not shown), for example in the form of rollers running in guide tracks formed in vertical supports 8 on a pivot frame 7, which is pivotably mounted at the upper ends of the guide tracks carrier arms 10 which are secured to the stand G. of the feeder

Ved den viste udførelsesform har svingrammen 7 en vertikal midterstøtte 9, på hvis forside der er fastgjort en 20 løftecylinder 3 som på sin opadragende stempelstangs frie ende bærer en rulle 5, hvorover der løber et trækorgan i form af f.eks. en wire, en kæde, en tandrem eller lignende indretning, som med den på løftecylinderen 3's forside liggende ende er fastgjort til den vertikale bære-25 del 2b og med den på løftecylinderen 3's bagside liggende ende er fastgjort til svingrammen 7.In the illustrated embodiment, the pivot frame 7 has a vertical center support 9, on the front of which is secured a lifting cylinder 3 which carries on its free end a pivoting rod 5, over which a pulling means in the form of e.g. a wire, chain, toothed belt or similar device which is secured to the vertical support part 2b with the end of the lifting cylinder 3 and the end of the lifting cylinder 3 attached to the swing frame 7.

Et stempel-cylinderaggregrat tjener til at svinge svingrammen 7. Dette aggregats stempelstangende er hensigts-30 mæssigt fastgjort med et svingled på svingrammen 7' s vertikale midterstykke 9, og aggregatets cylinderende er svingbart fastgjort på en passende del af tilførselsindretningens stativ G.A piston-cylinder assembly serves to pivot the pivot frame 7. The piston rod of this assembly is conveniently secured with a pivot joint on the vertical centerpiece 9 of the pivot frame 7, and the cylinder end of the assembly is pivotally secured to a suitable portion of the stand G. of the delivery device.

35 Yderligere findes mindst én sugeluftledning, hvis for reste endedel er anbragt således, at dens åbne sugeende ligger nedenunder oplægningslisten 2 (fig. 1 og 2). Suge- 5 ulv ib/ajo b i luftledningen 11 står i forbindelse med en vacuumpumpe V, og der er indrettet passende midler til valgfrit at koble sugekraften til eller fra. Eksempelvis kan der være indbygget en valgfrit aktiverbar drøvleklap i sugeluftled-5 ningen.35 At least one suction air conduit is provided, the remaining end portion of which is arranged so that its open suction lies below the laying strip 2 (Figures 1 and 2). Suction wolf ib / ajo b in the air line 11 is connected to a vacuum pump V and suitable means are provided for optionally switching the suction power on or off. For example, an optional activatable throttle flap may be incorporated into the suction air conduit.

Den ovenfor beskrevne indretning virker på følgende måde:The device described above works as follows:

Det antages, at oplægningslisten 2 til at begynde med 10 befinder sig i den i fig. 1 viste udgangsposition. I denne udgangsposition lægger en betjeningsperson forenden af et stykke vasketøj oven på oplægningslisten 2. Derved dækkes fotocellen, hvorved sugekraften kobles ind. Som følge af denne sugekraft, som via sugeluftledningen 11 og 15 luftgennemgangsåbningerne 2c i oplægningslisten 2 påvir ker vasketøjsstykkets forende, fastholdes dette på oplægningslisten 2. Ved hjælp af ikke viste styremidler skydes løftecylinderen 3's stempelstang 4 dernæst ud, hvorved trækorganet 5 fører oplægningslisten 2 vertikalt op langs 20 føringen. Som følge af den valgte anbringelse af trækorganet 5 er højden af dettes opadgående løftebevægelse dobbelt så lang eller høj som løftecylinderen 3's slag.It is assumed that the laying strip 2 is initially in the position shown in FIG. 1. In this starting position, an operator places the front end of a piece of laundry on top of the mounting strip 2. This covers the photocell, whereby the suction power is switched on. As a result of this suction force, which via the suction air conduit 11 and 15 influences the air passage openings 2c in the laying strip 2, the front end of the laundry piece is held, this is maintained on the laying strip 2. By means of the control means not shown, the piston rod 4 of the lifting cylinder 3 is then released, whereby the pulling member 5 guides the laying arrangement 5 along the lead. Due to the selected placement of the pulling member 5, the height of its upward lifting motion is twice as long or high as the stroke of the lifting cylinder 3.

Med en forholdsvis kort løftecylinder 3 kan der på denne måde opnås en forholdsvis stor løftehøjde af oplægnings-25 listen 2.In this way, with a relatively short lifting cylinder 3, a relatively large lifting height can be obtained from the laying strip 2.

Oplægningslisten 2's løftehøjde vælges almindeligvis således, at det stykke vasketøj, som skal behandles eller transporteres, kommer til at hænge fuldstændigt frit ned-30 efter, når oplægningslisten 2 har nået sin største højde.The lifting height 2 of the lifting strip 2 is generally chosen such that the piece of laundry to be treated or transported will hang completely freely downwards when the laying strip 2 has reached its maximum height.

Så snart oplægningslisten 2 har nået den største højde, aflastes løftecylinderen 3 således, at oplægningslisten 2 bevæger sig ned til sin nedre position under indvirkning 35 alene af dens egen vægt. Når oplægningslisten 2 har nået denne nedre position, aktiveres ved hjælp af ikke viste styremidler stempel-cylinderaggregatet 10 til svingrammen 6 7 således, at denne svingramme 7, som oplægningslisten 2 er anbragt på, svinges ud til venstre i fig. 1. Svingningsbevægelsens art og hastighed er valgt således, at oplægningslisten 2 trækkes ud nedenunder vasketøjs-5 stykkets forende - hvorved sugekraften samtidigt kobles fra -, så snart oplægningslisten 2 har bevæget sig så langt hen over transportøren, at vasketøj sstykket ikke rutscher ned af transportøren 1, når dets forende lægges ned på denne.As soon as the mounting strip 2 has reached its highest height, the lifting cylinder 3 is relieved so that the mounting strip 2 moves down to its lower position under the influence of its own weight. When the mounting strip 2 has reached this lower position, the piston-cylinder assembly 10 of the pivot frame 6 7 is activated by means of control means not shown, so that this pivot frame 7, on which the pavement strip 2 is placed, is pivoted out to the left in FIG. 1. The nature and speed of the oscillation movement are chosen such that the laying strip 2 is pulled out from under the front of the laundry-5 piece - whereby the suction force is simultaneously switched off - as soon as the laying strip 2 has moved so far across the conveyor that the laundry piece does not slide down from the conveyor 1 when its front end is lowered thereon.

10 Så snart vasketøjsstykkets forende er kommer ind i klemstedet mellem trykvalsen la og transportøren 1, kan mid-leren til længde- og tværstrækning af vasketøjsstykket aktiveres.As soon as the front of the laundry piece enters the terminal between the pressure roller 1a and the conveyor 1, the longitudinal and transverse extension of the laundry piece can be activated.

15 Når indretningen ifølge opfindelsen anvendes, bliver et stykke vasketøjs forende, som er lagt på oplægningslisten 2 løftet op samtidigt med denne, således at hele vasketøjsstykket kommer til at hænge frit.When the device according to the invention is used, the front of a piece of laundry, which is placed on the laying strip 2, is lifted up simultaneously with it, so that the whole piece of laundry will hang freely.

2020

En tilførselsindretning kan være forsynet med én enkelt af svingrammen 7 og løfteaggregatet 3 bestående indretning, der da strækker sig over tilførselsindretningens samlede arbejdsbredde.A supply device may be provided with a single device of the swing frame 7 and the lifting assembly 3, which then extends over the total working width of the supply device.

25 I tilførselsindretningens samlede arbejdsbredde kan der alternativt være anbragt flere indretninger, som hver består af en svingramme 7 og et løfteaggregat 3, som kan aktiveres hver for sig eller i givet fald i fællesskab.Alternatively, several devices may be arranged in the overall working width of the feed device, each consisting of a swing frame 7 and a lifting unit 3 which can be actuated separately or, if applicable, jointly.

30 3530 35

Claims

7 DK 167536 Bl

Device for conveying a piece of laundry to a cloth roll or similar device, comprising one driven conveyor (1) disposed in front of this cloth roll, at the front of which is provided a laying strip (2) which can be pulled out from below a a piece of laundry placed in the front end to place it on the conveyor (1), after which the laundry piece is transported in the direction of the cloth roll or similar device, characterized in that the device further comprises a lifting unit (3) which is arranged so that it , after the front of the laundry piece is placed on the laying strip 15 (2), causes it to perform an up and down vertical movement.

Device according to claim 1, characterized in that the lifting unit (3) is a lifting cylinder with a piston rod (4) which can be pushed upwards and on whose end a roller (2) is arranged, around which there is a pulling member (6) which is fastened to one end with the supporting strip (2) and at the other end to a supporting member (9) for the lifting cylinder. 25

Device according to claim 1 or 2, characterized in that the supporting strip (2) with its rear end in the direction of movement of the laundry piece is connected to a carrier part (2a) and this carrier part (2a) is again connected to the lifting unit (3 ). Device according to claim 1, 2 or 3, characterized in that it comprises one guide arranged on a rack for controlling the laying strip (2) during its upward and downward movement. 8

Device according to one or more of claims 1 to 4, characterized in that the supporting strip (2) is arranged on a frame (7) which can pivot about a horizontal or horizontal axis and which is arranged on the stand of the supply device. (G).

Device according to claim 5, characterized in that the supporting strip (2), the lifting device (3) and the guide with the swing frame (7) constitute a total unit. 10

Device according to claim 5 or 6, characterized in that it comprises a piston-cylinder assembly (10), the cylinder end and piston rod end of which are pivotally mounted on respectively. device stand (G) and pivot frame 15 (7).

Device according to one or more of claims 1-7, characterized in that the laying strip (2) is provided with a plurality of air passage openings (2c) and at least one suction air conduit (11) connected to a vacuum pump (V) is arranged. , which ends up somewhere on the bottom of the list (2).

Device according to claim 8, characterized in that at least one throttle valve (D) is inserted in the suction air line (11).

Device according to one or more of claims 1 to 9, characterized in that a device is provided under the conveyor (1) which serves to exert a pulling force acting in the opposite direction of the conveying direction on a piece of laundry which is being transported.

Device according to claim 10, characterized in that the traction-exerting device has a suction duct S approximately approximately horizontally or obliquely, which carries at its entrance an extendable extensible metal member 9 with curved leading edges and at whose entrance end there is arranged. a transport roller that can be turned on and off.

Device according to one or more of claims 1-9, 5, characterized in that the traction-carrying device has a set of pull rollers and a pivotable roller for passing a rear end of a piece of laundry into the clamping position between two adjacent pulling rollers.

Device according to one or more of claims 4-12, characterized in that the guide for the upward and downward movement of the supporting strip (2) has control elements formed on the supporting part (2b) of the supporting strip (2) and control paths which are formed on supports (8) of the swing frame (7).

Device according to one or more of claims 1-13, characterized in that in the overall width of the supply device a pivot frame (7) with 20 lifting units (3) is provided.

Device according to one or more of claims 1 to 13, characterized in that a plurality of pivot frames (7) are arranged next to each other in the overall width of the supply device, each with its own lifting unit (3).

Device according to claim 15, characterized in that the pivot frames (7) are each interconnected in a working manner in such a way that they perform a common movement. 35