EP0100724B1 - Verfahren und Vorrichtung zum Spülen von flachem Geschirr wie Tablette und Teller - Google Patents

Verfahren und Vorrichtung zum Spülen von flachem Geschirr wie Tablette und Teller Download PDF

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Publication number
EP0100724B1
EP0100724B1 EP83401537A EP83401537A EP0100724B1 EP 0100724 B1 EP0100724 B1 EP 0100724B1 EP 83401537 A EP83401537 A EP 83401537A EP 83401537 A EP83401537 A EP 83401537A EP 0100724 B1 EP0100724 B1 EP 0100724B1
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EP
European Patent Office
Prior art keywords
articles
station
tableware
wet
path
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.)
Expired
Application number
EP83401537A
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English (en)
French (fr)
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EP0100724A2 (de
EP0100724A3 (en
Inventor
Jacques Marais
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.)
FAST LUNCH SA
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FAST LUNCH SA
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 FAST LUNCH SA filed Critical FAST LUNCH SA
Priority to AT83401537T priority Critical patent/ATE35616T1/de
Publication of EP0100724A2 publication Critical patent/EP0100724A2/de
Publication of EP0100724A3 publication Critical patent/EP0100724A3/fr
Application granted granted Critical
Publication of EP0100724B1 publication Critical patent/EP0100724B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/0092—Washing or rinsing machines for crockery or tableware specially adapted to wash large items like pots, trays, baking trays, cooking grids
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/24—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors
    • A47L15/241—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors the dishes moving in a horizontal plane
    • A47L15/245—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors the dishes moving in a horizontal plane the dishes being placed directly on the conveyors, i.e. not in dish racks

Definitions

  • the present invention relates to a method and a device for implementing this method, with a view to economical and fully automatic washing of articles of tableware such as in particular trays, dishes, plates, saucers or the like.
  • the invention will be more particularly used for installation equipment set up in places suitable for providing collective meals such as traditional restaurants, self-service restaurants, canteens, community dining halls, fast food places, etc.
  • French patent 1,486,181 provides a set for washing, drying, tableware comprising numerous brushing stations under water and then dry, the products following a horizontal path, but this complex set and expensive to manufacture is greedy in washing and rinsing and energy costs.
  • US Patent 1,765,996 describes an apparatus in which the items of tableware leaving a washing apparatus are conveyed by a conveyor in an ascending path and are subjected to a lower and higher air flow for drying purposes, this device is thus limited to a drying function.
  • US Patent 1,354,049 relates to an assembly in which the articles of tableware are conveyed being subjected to jets of washing liquid then of rinsing with recycling of water, the drying problem remaining open.
  • US Patent 3,849,831 teaches the use of a flow of blown air downstream of the washing and rinsing station for drying the articles, the apparatus requiring a high consumption of water respectively for washing and then rinsing.
  • the invention aims to remedy these various drawbacks and proposes for this purpose a method and a device applying a new methodology and a more efficient, more compact and fully automatic apparatus.
  • the collective washing process for tableware uses a single wet washing operation in detergent water, which is recycled after filtration and maintained at a moderate temperature of the order 60 °, while the single wash water and the active products it contains, is removed from the surface of the articles not by wet rinsing but by physical recycling, in the form of a ramp ejecting an air knife chasing the wet film in the direction of gravity.
  • the machine according to a variant embodiment is supplied by a stack of articles known corresponding to a certain quantity, positioned in a standard container, the staff being freed from the tasks of placing the trays in the machine, which is carried out. automatically at a feeding station, while the machine continuously returns to an output station a quantity or stack of clean articles available for immediate re-use.
  • the device according to the invention essentially consists of a washing station 2 followed by a station 3 for the physical elimination of the wet film which constitute, attached to one other, the heart of the machine or device.
  • the machine is supplied from containers 54 constituting interchangeable cassettes and which will be used for the storage, the transport, the reception of the products specific to the downstream station 4, as well as for the establishment of the stack. dirty products to constitute the stack 5 of flat tableware intended to be subjected to continuous washing in the machine.
  • These containers can be mounted on bearings to form trolleys, (see Fig. 6, 7 and 8).
  • the stack of dishes 5 is put in place at the downstream station 1 inside a standard cassette and the station includes for this purpose locating means such that the cassette is automatically placed in the right location to allow work and the gripping of the recovery members shown diagrammatically at 6 (FIG. 1) and which are shown in the starting position (in solid lines) and in the arriving position 6 ′ to supply the machine (in dotted lines).
  • This device is formed by a coupling 7 operated by the jack 59 (see FIGS. 7 and 8) sliding on a set of rails 8 and carrying a jack 9 at the base of which a gripping system with suction cups 10 makes it possible to grasp plates, dishes, trays etc ... individually to bring them to their starting position in the machine supply.
  • a system can be provided for physically eliminating solid or pasty waste which may remain on the plate, for example in the form of a projection of a fluid intended to expel these debris which fall into the tray 11.
  • the fluid may be liquid or possibly air and this phase essentially aims to physically remove the solid elements from the plate so as to deliver a dirty plate to the machine but without significant deposits of solid matter.
  • the entire machine operates continuously and for this purpose, the plates, dishes, trays are conveyed by a drive means consisting of toothed belts 12, 12 'cooperating with guide rails 13, 13', 14, 14 '.
  • the articles are thus positioned flat and maintained in this position along an ascending inclined plane.
  • the rails 13, 13 ', 14, 14' are simple fixed and passive supports allowing the upward sliding of the items of tableware such as the plates 15, 15 ', 16, 16'.
  • the rails for example consist of fixed linear supports formed more particularly of semi-rigid extruded synthetic cords and offering a smooth outer wall with low friction coefficient, possibly supported in the lower position by a rigid rod such as a flat rod stainless steel 17, 17 '(figure 2).
  • the rails constitute simple sliding means making it possible to ensure the constant positioning of the plates along their upward course and for this purpose, the rails are arranged along a course in inclined plane forming an angle of the order of 15 to 20 °. with the horizontal.
  • a notched drive belt 12 and 12 ' which itself rests on a lower support 18 formed for example of a rigid rod with square section for example in stainless steel ( Figures 2 and 3).
  • the method and the machine which implements this method comprise a single wet phase carried out at station 2; at this station are projected from the upper nozzles 19 and lower 20, jets of detergent water at a temperature of the order of 60 ° C which reach the upper surface and the lower surface of the plate 15; this operation is coupled to brushing from the rotary brush 21 and makes it possible to eliminate any deposit on the walls of the plate.
  • a wall 60 (FIG. 6) separates the washing station from the mat and it has two lips 61, 62 of elastically deformable material capable of lending itself to the passage of articles by marrying and scraping their upper faces and lower. This wall 60 maintains the water at the washing station.
  • the invention proceeds by physical elimination by rejecting by scraping the wet film in the direction of gravity, the film being expelled in the form of droplets which join the washing tub 24.
  • an air knife projected from the upper nozzle 27 is used.
  • a lower nozzle 28 projects at the base of the plate an air flow in the form of a blade which scrapes and pushes towards the rear end, in the form of droplets which then fall back into the tank, the remaining film or wet film on the base of the plate.
  • the nozzles 27, 28 form ramps projecting an air flow forming a blade arranged in an inclined plane relative to the general ascending plane of the articles at an angle slightly less than the perpendicular and of the order of 75 °.
  • the plates are then transported to the serving station where they are delivered by the toothed belt 12; this serving station can be an intermediate waiting station 29 where the individual plates enter by pushing the pawl 30 which is repositioned at the rear of the plate, this pawl being located at the end of the piston 31 maneuvered by the cylinder 32.
  • the piston shown in dotted lines in the extended position and in solid lines in the retracted position is capable of bringing the plate outward, that is to say towards the re-stacking station.
  • a descender consisting of a support train or hitch 33 mounted on one or two guide columns and operated by the piston rod 34 coming from the vertical actuating cylinder 35.
  • the hitch 33 comprises a device support and removal of the plates shown in Figure 5 and consisting of two arms 36, 37 for supporting the plate 38 shown in the high position, in solid lines (and in the lower position and in dotted lines).
  • the two arms are each associated with an actuating cylinder 39, 40, so that the arms can be brought into the close position to support the plate and then moved apart to allow the plate to be deposited at the top of the stack.
  • All of the jacks 35, 39 and 40 are associated with a control and servo-control device (not shown) itself comprising contactors capable of detecting the presence of the plate 38 in the arrival position on the close arms 36, 37, which controls the start of the cycle with lowering of the coupling 33 to the top of the stack 41; the stop is controlled by a contactor associated with the train 33 and coming for example in abutment on the upper plate 42, which causes the stop of the jack and the positioning at suitable height of the coupling 33; subsequently the two jacks 39 and 40 are brought into the spacing position so that the plate 38 is deposited on the upper plate 42; after which the train 33 can be raised with approximation of the arms 36 and 37 to return to the high position or start of the cycle.
  • a control and servo-control device itself comprising contactors capable of detecting the presence of the plate 38 in the arrival position on the close arms 36, 37, which controls the start of the cycle with lowering of the coupling 33 to the top of the stack 41; the stop
  • the invention makes it possible to produce compact, fully automatic apparatus.
  • the spacing between the rails 13, 13 ', 14, 14' corresponds to an interval of less than half the smallest width dimension of the items of tableware, thereby opposing the fall of an article between two rails.
  • the toothed belts 12, 12 ′ are mounted on two end pulleys, one of which is a drive pulley 47, the belt thus being able to follow an upward path, being positioned between two fixed rails forming a guide path, and a reverse return path. lower, the notches being in position projecting outward to grip on the articles subjected to washing.
  • Figures 6, 7, 8 show a variant in which the machine is washing trays, which are routed in an ascending path, being guided and driven by a train of side rollers.
  • the machine includes upstream a storage station for tableware in the dirty state and located under the recovery and displacement means (6, 10, 8); downstream, the machine includes a storage station for clean tableware and each upstream and downstream storage station is capable of receiving a removable container 54 forming a cassette (for example mounted on rolling means) and in which can be positioned a stack of tableware arranged horizontally resting on each other; each container is thus able to be put in place at the upstream storage station to deliver the dirty ware items taken up by the machine and the same container, once empty, can be brought to the downstream storage station to receive the clean ware items delivered by the machine, each container also being a cassette for storing the articles either in the dirty state or in the clean state.
  • a cassette for example mounted on rolling means

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning Or Drying Semiconductors (AREA)

Claims (7)

1. Verfahren zum mechanischen Waschen von kontinuierlich zugeführten flachförmigen Geschirrartikeln, wie z.B. Tellern, Untertassen o.ä., wobei sie unter drehendem Bürsten unter Wasserstrahl einer flüssigen Phase ausgesetzt werden, dadurch gekennzeichnet, daß
(a) die Artikel in einer aufsteigenden Ebene zugeführt werden, die mit der Horizontalen einen Winkel zwischen 10 und 30° bildet,
(b) diese Artikel auf ihrem aufsteigenden Weg unter drehendem Bürsten unter Waschwasserstrahl einer flüssigen Phase ausgesetzt werden,
(c) und daß die Artikel daraufhin und auf ihrem aufsteigenden Weg einer Phase der physikalischen Entfernung des zurückbleibenden Flüssigkeitsfilms durch einen Luftstrahl über die Oberfläche der Artikel ausgesetzt werden, wobei der Luftstrahl bzgl. der aufsteigenden Ebene der Artikel unter einem Winkel kleiner der Senkrechten und von der Größenordnung 75° auftrifft, und wobei der Luftstrahl den Flüssigkeitsfilm in Richtung der Schwerkraft wegbläst.
2. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1 mit einer Bürststation (21) und versehen mit Mitteln zum Besprühen mit Wasser (19, 20), dadurch gekennzeichnet, daß sie in Kombination umfaßt:
(a) Mittel zum Zuführen (12, 12', 13, 14) der Artikel zum Waschvorgang und zur Entfernung des zurückbleibenden Flüssigkeitsfilms in einer aufsteigenden Ebene unter einem Winkel zwischen 10 und 30 zur Horizontalen,
(b) eine Bürststation, versehen mit Mitteln zum Besprühen mit einer Waschwasserflüssigkeit und verbunden mit einem Reservoir von Waschwasser, welches wiederum durch Schwerkraft mit Wasser von der Bürststation versorgt wird, wobei diese Station Mittel zum Zurückführen (26) des Wassers von diesem Reservoir zu den Mitteln zum Besprühen (19, 20) mit Waschwasser umfaßt.
(c) und Mittel zum Aufbringen eines Luftstrahls zum physikalischen Ablösen und Entfernen des auf der Oberfläche der Artikel zurückbleibenden Flüssigkeitsfilms, wobei diese Mittel aus einer Vielzahl von quer zur Förderrichtung der Artikel (16) angeordneten Rampen (27, 28) bestehen und wobei diese Rampen jeweils oberhalb und unterhalb der Artikel angeordnet sind und mit Druckluft versorgt werden, wodurch sie somit einen einen Strahl bildenden Luftstrom unter einem Winkel bzgl. der aufsteigenden Ebene der Artikel von kleiner als die Senkrechte und von der Größenordnung 75° erzeugen können, wobei der Lufstrahl in Richtung der Schwerkraft entsteht und den zurückbleibenden Flüssigkeitsfilm nach hintem im entgegengesetzten Sinn zur aufsteigenden Bewegung der Artikel abstreift.
3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Mittel zum Zuführen einerseits aus festen, linearen, mit einem Überzug aus einem Material mit kleinem Reibungskoeffizienten, wie z.B. einer Bahn aus extrudiertem Kunststoff, versehenen Trägern (13, 13', 14, 14') bestehen, längs und in geneigter Ebene angeordnet, um die aufsteigende Zuführung der zu waschenden Artikel sicherzustellen, wobei diese linearen, parallelen Träger voneinander in einem Abstand getrennt sind, der kleiner ist als die Hälfte der kleinsten Breitenabmessung der Geschirrartikel, und somit einen längsförmigen, mit Lücken versehenen Führungsweg bilden, und daß die Mittel zum Zuführen andererseits aus beweglichen Zugelementen (12, 12') zum Erfassen des Flachgeschirrs (15,15', 16, 16') bestehen, um damit die aufsteigende Verschiebung entlang dem längsförmigen, durch die festen, linearen Elemente gebildeten Führungsweg sicherzustellen.
4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die die aufsteigenden Verschiebung der Geschirrartikel sicherstellenden Zugelemente aus wenigstens einem endlosen, auf zwei Endrollen mit einer Treibrolle (47) montierten Zahnriemen (12, 12') bestehen, wobei der Riemen einem aufsteigenden Hinweg zwischen zwei festen, linearen, einen Führungsweg bildenden Trägern und einem tieferen, umgekehrten Rückweg folgen kann, wobei die Verzahnung nach außen übersteht, um die dem Waschen zu unterwerfenden Artikel erfassen zu können.
5. Vorrichtung nach einem der Ansprüche 2, 3, oder 4, dadurch gekennzeichnet, daß
(a) die Vorrichtung oberhalb der Waschstation eine mit Lagermitteln (2) für die horizontal übereinander gestapelten, schmutzigen Platten versehene Lagerstation (1) sowie Mittel zum Greifen und Verschieben (6, 10, 8) jeder Platte einzeln zu deren Einführung in den Kreislauf und Rückkehr durch die Abspulmittel umfaßt,
(b) die Vorrichtung unterhalb der Station zur Beseitigung des Flüssigkeitsfilms eine Lagerstation (4) für die sauberen Platten umfaßt, die die Platten in horizontaler Übereinanderstapelung am Ende des Durchlaufs aufnehmen kann, wobei die Platten durch die Abspulmittel an diese Lagerstation transportiert werden,
(c) die Vorrichtung eine Vielzahl von beweglichen Behältern (54) umfaßt, die jeweils eine Kassette bilden (insbesondere auf Rollelementen montiert) und einen Stapel horizontaler, übereinanderliegender Platten aufnehmen kann, wobei jeder Behälter in geeigneter Position zu den Lagerstationen (1, 4) angebracht werden kann, wobei jeder Behälter (54), gefüllt mit gestapelten, schmutzigen Platten, der oberen Lagerstation zugeführt und wieder rückgeführt werden kann, wenn die Platten entnommen sind, und wobei jeder leere Behälter in die untere Lagerstation zur Aufnahme sauberer Platten geführt werden kann.
6. Vorrichtung zum Waschen nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die Mittel zum Greifen der einzelnen Geschirrartikel im Hindblick auf ihre Zuführung zur Waschstation und ihre Rückkehr durch die Abspulmittel aus einer auf Schienen (8) geführten Kuppelvorrichtung (6) bestehen, die durch einen ersten Zylinder (59) horizontal entlang einem im wesentlichen horizontalen Weg verschiebbar ist, wobei die Kuppelvorrichtung durch einen Vertikalzylinder (9) einen zu ihr senkrecht verschiebbaren Greifsockel umfaßt, der mit einzelnen Greifmitteln wie z.B. Unterdurcksaugern (10) versehen ist.
7. Vorrichtung nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß sie unterhalb von Station (2) zur physikalischen Entfernung des Flüssigkeitsfilms auf den gewaschenen Platten eine Aufnahmestation für die trockenen Artikel umfaßt, zu der die Platten durch Zugmittel wie z.B. dem Zahnriemen zugeführtwerden, und daß diese Station Mittel zum Stapeln umfaßt, die aus einem in einer im wesentlichen senkrechten Achse zwischen der Ankunftshöhe der durch die Zugmittel (Zahnriemen) zugeführten Geschirrartikel und der augenblicklichen Spitze des sich bildenden Stapels (41) verschiebbaren Förderer bestehen, und daß der Förderer einen Träger umfaßt, der in oberer Position den sauberen Geschirrartikel aufnehmen und der diesen Artikel entlang dem vertikalen Weg hinunter bis zur Spitze des Stapels (41) tragen kann, wo der Träger außer Eingriff mit dem Geschirrartikel kommen kann, um diesen auf der Spizt des Stapels abzulegen, wobei der Träger zu diesem Zweck mit Betätigungsmitteln wie z.B. Zylindern versehen ist.
EP83401537A 1982-07-29 1983-07-26 Verfahren und Vorrichtung zum Spülen von flachem Geschirr wie Tablette und Teller Expired EP0100724B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83401537T ATE35616T1 (de) 1982-07-29 1983-07-26 Verfahren und vorrichtung zum spuelen von flachem geschirr wie tablette und teller.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8213272 1982-07-29
FR8213272A FR2530942B1 (fr) 1982-07-29 1982-07-29 Dispositif pour le lavage de plateaux

Publications (3)

Publication Number Publication Date
EP0100724A2 EP0100724A2 (de) 1984-02-15
EP0100724A3 EP0100724A3 (en) 1986-02-19
EP0100724B1 true EP0100724B1 (de) 1988-07-13

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EP83401537A Expired EP0100724B1 (de) 1982-07-29 1983-07-26 Verfahren und Vorrichtung zum Spülen von flachem Geschirr wie Tablette und Teller

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US (1) US4561144A (de)
EP (1) EP0100724B1 (de)
AT (1) ATE35616T1 (de)
DE (1) DE3377329D1 (de)
FR (1) FR2530942B1 (de)

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CN111760835A (zh) * 2018-06-25 2020-10-13 杨何应 一种基于流体力学的蠕动式菜板清洁设备及使用方法
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US3522872A (en) * 1968-01-15 1970-08-04 Blakeslee & Co G S Tray unloading mechanism and conveyor stop means for dishwashing machine
US3517835A (en) * 1968-05-06 1970-06-30 Baker Perkins Inc Unstacking mechanism
US3599968A (en) * 1969-12-24 1971-08-17 Fmc Corp Veneer-sheet-feeding apparatus
DE2043243A1 (de) * 1970-09-01 1972-03-09 Meiko Maschinen U Apparatebau Entladegerat für Speise oder Ser viertablett Sammelwagen
US3798065A (en) * 1970-11-13 1974-03-19 L Kitterman Tray washing system
US3768493A (en) * 1971-04-05 1973-10-30 R Kraeft Automatic food tray cleaning machine
US3849831A (en) * 1972-12-20 1974-11-26 Dee Electric Co Air dryer equipment
US3999238A (en) * 1974-08-09 1976-12-28 Hanson Douglas R Pan cleaning apparatus
US3980204A (en) * 1974-12-05 1976-09-14 Avant Industries, Inc. Tray dispenser apparatus
FR2366215A1 (fr) * 1976-07-26 1978-04-28 Appelshauser Charles Appareil de lavage de boites de revolution
DE2802475C3 (de) * 1978-01-20 1981-01-22 Windmoeller & Hoelscher, 4540 Lengerich Saugluftsteuerung für Bogenanlegemaschinen
US4473922A (en) * 1982-10-29 1984-10-02 Weihe Clyde R Tray dryer

Also Published As

Publication number Publication date
EP0100724A2 (de) 1984-02-15
EP0100724A3 (en) 1986-02-19
ATE35616T1 (de) 1988-07-15
US4561144A (en) 1985-12-31
FR2530942A1 (fr) 1984-02-03
FR2530942B1 (fr) 1985-11-08
DE3377329D1 (en) 1988-08-18

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