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
  • A47L15/24—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors
  • A47L15/247—Details specific to conveyor-type machines, e.g. curtains
• • 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
• • 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
  • A47L15/42—Details
  • A47L15/4278—Nozzles
  • A47L15/4282—Arrangements to change or modify spray pattern or direction

Definitions

• the invention relates to a method for transporting items to be cleaned by a continuous dishwasher and to a continuous dishwasher with continuous transport of the items to be washed.
• WO 00/53076 A1 discloses a continuous dishwashing machine which comprises a washing zone and a final rinse zone, wherein the items to be cleaned are conveyed through the dishwasher and sprayed with a cleaning solution within the washing zone. In the adjoining the washing zone zone, the cleaned dishes are rinsed clear.
• the dishwasher is driven so that it operates cyclically, wherein within a work cycle, a conveyor belt is operated at a normal speed and the washing zone cleaning solution is supplied to the rinse zone, however, fresh water is supplied. Within an external cycle, the conveyor is stopped in the form of a conveyor belt and the supply of fresh water to the final rinse zone is interrupted.
• the dishwashing machine known from WO 00/53076 A1 comprises a washing zone, a rinsing zone and a conveyor belt for conveying items to be cleaned by the dishwasher, and feeding devices for supplying cleaning solution to the washing zone and nozzles for spraying rinse water within the final rinse zone. Furthermore, a control device is provided for controlling the dishwasher, wherein the control device controls the transport device cyclically. By means of a timer of the control of the washing cycles is achieved that is conveyed while cleaning in the conveying direction on the conveyor belt, cleaning solution is simultaneously fed to a washing zone and fresh water is conveyed to the rinse zone. During a pause cycle, the conveyor belt with the cleaning material picked up on it stands still, while the supply of fresh water to the final rinse zone remains interrupted.
• the continuous dishwasher apart from a arranged at the inlet and the outlet conveyor belt, of a single conveyor belt traversed. All zones, be it the washing zone, the cleaning zone or a final rinse zone are passed through at the same speed.
• a cyclic non-continuous transport of the cleaning material to be cleaned in the continuous dishwasher is proposed, whereby a rapid transport entails short exposure times of the cleaning fluid, while long exposure times can be achieved when the transport device is stopped.
• the items to be washed are continuously transported through the machine. In these machines, the slowest zone in terms of transport speed dictates the speed for all other zones of the machine.
• the rinsing step requires that a minimum amount of water is applied to the items to be washed within the shortest possible time in order to produce a sufficiently thick film of water to wash off particles.
• a transport device such as a continuously moving through the continuous flow conveyor belt, is consumed based on the number of the respective items to be rinsed too much rinse water because the items remain relatively long in the fresh water rinse.
• the object of the invention is to provide a continuous-flow dishwasher in which the duration of rinsing, rinsing or drying phases can be optimized at a continuous transport speed of a transport device.
• a directly acting spraying device for introducing a cleaning medium or a washing system is moved relative to the transport direction of the ware by the continuous dishwashing machine.
• the relative movement of the direct-acting spray system for a cleaning medium or a rinsing system for applying fresh water and rinsing liquid can be carried out both relatively in the transport direction of the ware and relatively opposite to the transport direction of the ware through the treatment zones of the continuous dishwasher.
• a spray system or flushing system which acts from both sides on the transported by the continuous dishwasher dishes can be accommodated on a carriage by means of a separate independent drive relative to the transport device, such as a revolving conveyor belt can be displaced.
• the travel path of the carriage, on which the spray system movable relative to the transport device, flushing system or the direct-acting spray system are accommodated can be detected in both directions by limit switches.
• the limit switches which are provided at the end points of the respective travel in the direction of travel of the carriage, are connected to a machine control. For example, the time can be detected via the first limit switch until the items to be washed reach the first limit switch.
• the transport speed of the items to be washed can be calculated by the machine control.
• the separate drive driving the carriage can now be actuated and, for example, the fresh water rinsing system accommodated on the carriage either moved in the transport direction of the items to be washed by the continuous dishwasher or moved counter to the transport direction of the items to be washed by the continuous dishwasher.
• the first limit switch not only the transport speed of the items to be washed is detected by the continuous dishwasher, but at the same time with the control of the separate drive for the carriage a pump which promotes heated fresh water and drives a solenoid valve.
• the machine controller will optimize the movement speed of the slide.
• the carriage is arranged within the final-rinse zone of a continuous-flow dishwasher, fresh-water rinsing systems are accommodated on the carriage, which wet the items to be washed from the upper side and the lower side thereof.
• the separate drive can be reversed by reaching the second limit switch, so that the carriage and the freshwater rinsing systems accommodated therein again assume their starting position in the region of the first limit switch.
• the rinse can be turned off, ie the machine controller controls the solenoid valve for fresh water admission of a pump provided in the final rinse zone of a continuous-flow dishwasher.
• a direct spray system or a flushing system such as, for example, a fresh-water flushing system
• a flushing system can be pivoted about a pivot axis within a corresponding treatment zone of the continuous-flow dishwasher.
• the drive washing machine receiving separately controllable drives is then assigned to the transport device of the continuous-flow dishwasher, which receives in each case relative to the items to be washed.
• the pivotal movement of the flushing system or the direct spray system is detected by detectors.
• the pivot drive is activated and, after passing through the corresponding treatment zone, can also be switched off again by a second detector arranged at the end of the treatment zone.
• the transport speed of the item to be washed by the continuous-type dishwasher can also be calculated by the machine controller according to this embodiment variant.
• the movement speed i. the angular velocity of the spray systems can be specified optimized around the pivot axis.
• FIG. 2 shows an illustration of a treatment zone of a continuous dishwasher with pivotably arranged spray systems in the upper and in the lower region of the treatment zone shown schematically.
• FIG. 1 shows, in section, a continuous-flow dishwasher which has a plurality of treatment zones for items to be washed, wherein a spraying system movable relative to the items to be washed is arranged in one of the treatment zones.
• a continuous-flow dishwasher 1 comprises an inlet region 2, within which items 10 are applied to a transport device 11.
• the transport device 11 may be designed as a circulating conveyor belt, which is driven by a drive 56.
• the transport device 11 On the continuously moving transport device 11, the items to be washed 10 can be applied directly on the one hand; On the other hand, it is also possible to put on the transport device 11 transport baskets in which each pre-sorted items to be washed 10 is.
• a pre-evacuation zone 3 Behind the inlet region 2 of the continuous dishwasher 1 there is a pre-evacuation zone 3, which is followed by at least one washing zone 4.
• the at least one washing zone 4 is adjoined by a pump rinsing zone 5, which in turn is followed by a fresh water rinsing zone 6.
• the transport direction of the ware 10 through the mentioned treatment zones of the continuous dishwasher 1 is indicated by reference numeral 9, the conveying speed with which the ware 10 is transported in the transport direction 9 through the treatment zones of the continuous dishwasher 1, is dependent on the drive 56th
• an upper pre-evacuation spray system 13 and a lower pre-evacuation spray system 14 are arranged.
• a return 15 which opens into a tank 16 of Vorabhoffmzone 3.
• the cleaning fluid sprayed onto the items to be washed 10 within the pre-evacuation zone 3 is conveyed by a pump 17 which sucks cleaning fluid out of the tank 16 of the pre-evacuation zone 3.
• the pump 17 is connected to a machine control 55 of the continuous dishwasher 1 in connection.
• the Vorab syndrome 3 is a washing zone 4 downstream. Instead of the washing zone 4 shown in FIG.
• the continuous-flow dishwasher 1 can also have a plurality of washing zones 4 connected in series.
• the washing zone 4 shown in FIG. 1 comprises an upper spraying system 23 and a lower spraying system 24. Beneath the lower spraying system 24 there is a return 25 in a tank 26 which collects the cleaning fluid applied to the washware 10 in the washing zone 4. From the tank 26 for the cleaning fluid, a pump 27 sucks this and promotes this to the upper spray system 23 and to the lower spray system 24.
• the pump 27 within the at least one washing zone 4 of the continuous dishwasher 1 communicates with the machine control 55 in connection.
• the at least one washing zone 4 of the continuous dishwasher 1 is followed by the pump rinsing zone 5.
• the pump rinsing zone 5 there is an upper pump rinsing system 33 and a lower pump rinsing system 34.
• a return 35 extends into a tank 36.
• a pump 37 sucks in cleaning fluid and in turn conveys it to the The pump 37, which is arranged in the pump rinsing zone 5, also communicates with the machine control 55 of the through-flow dishwasher 1.
• the pump rinsing zone 5 is followed by a fresh water rinsing zone 6.
• an upper fresh water rinsing system 41 and a lower fresh water rinsing system 42 are arranged within the fresh water rinsing zone 6.
• the freshwater rinsing systems 41, 42 By means of the freshwater rinsing systems 41, 42, the ware 10 received on the transport device 11 is transported in the transport direction 9 through the fresh water rinsing zone 6.
• the fresh-water clearing systems 41, 42 are designed to be relatively movable relative to the transport device 11 designed as a circulating belt.
• the rinsing systems 23 and 24 arranged in the pump rinsing zone 5 and rinsing systems accommodated in further washing zones 4 can be designed in such a way that the rinsing systems arranged in each case in the mentioned treatment zones are relative to the conveying device 11 on which the items to be washed 10 are received, are movable; this also applies to the direct-acting spray system.
• the direct-acting spray systems with which, for example, a highly concentrated cleaner is introduced into the treatment zones 3, 4 or 5, following the concept proposed according to the invention, can be arranged within the respective treatment zone, that they are also moved relative to the transport device 11 can.
• drying zone 7 arranged drying fan 51 to move relative to the transported in the transport direction 9 items to be moved 10, so for example to pivot about a pivot axis.
• the idea underlying the invention is explained in more detail using the example of a fresh water rinsing zone 6 of the continuous-flow dishwasher 1.
• the upper fresh water rinsing system 41 and the lower fresh water rinsing system 42 are accommodated on a carriage 49 designed to be movable.
• the carriage 49 may for example be designed so that it has on its underside a toothing, in which a via a separate drive 50 drivable gear 57 engages. Depending on the direction of rotation of the separate drive 50, the carriage 49 can be moved within the fresh water rinsing zone 6 in this manner.
• the fresh water rinsing systems 41 and 42 accommodated on the carriage 49 can also be moved within the fresh water rinsing zone 6.
• the carriage 49 can be moved in a travel direction 39 counter to the transport direction 9 of the transport device 11 or in a travel direction 40 with the transport direction 9 of the transport device 11.
• a first signal generator 53 Seen in the transport direction 9 of the ware 10, located in the inlet region of the fresh water rinsing 6, a first signal generator 53.
• a second signal transmitter 54 located in the transport direction 9 of the ware 10 seen through the continuous dishwasher 1, located in the outlet region of the fresh water rinsing 6, a second signal transmitter 54.
• the end point of the travel 40 in the transport direction 9 of the ware 10 through the continuous dishwasher 1 is indicated by reference numeral 43.
• the fresh water clearing systems 41, 42 received on the movable carriage 49 are connected to a pump 46 via a movable water supply 48.
• the pump 46 which in turn is connected to the machine control 55, is preceded by a solenoid valve 47, which can also be actuated by the machine control 55.
• a return 45 extends into the tank 36, which is associated with the Pumpenklar Hugheszone 5 and runs into the excess fresh water from the Frischiganklar Hugheszone 6.
• the pump 46 supplied to the upper freshwater rinsing system 41 and the lower freshwater rinsing system 42 te fresh water can be both preheated, ie brought in a boiler to temperature or it can also be cold water.
• the drying zone 7 comprises a drying fan 51, from which emerges an air flow 52 which impinges on the washware 10 present on the upper side of the transport device 11.
• the mode of operation of the continuous-flow dishwasher 1 proposed according to the invention shown in FIG. 1 is described in more detail below:
• the first signal generator 53 is in communication with the engine controller 55.
• the transport speed of the transport device 11 is calculated from the entry time of the cleaned items to be washed detected by the first signal generator 53 into the fresh water rinsing zone 6, with which the items to be washed 10 are transported through the conveyor dishwasher 1 in the transport direction 9.
• the separate drive 50 upon detection of items to be washed 10 by the first signal generator 53, the separate drive 50, with which the carriage 49 is driven, driven.
• the drive 50 moves the carriage 49 with the freshwater rinsing systems 41 and 42 received in it in the travel direction 39, i.
• the solenoid valve 47 and the pump 46 is controlled by the machine control 55, so that the Frischbergklar facedsysteme recorded on the carriage 49 are supplied with fresh water.
• the speed with which the carriage 49 is moved can be optimally adjusted in terms of fresh water consumption, depending on the determined in the machine control 55 transport speed of the ware 10 in the transport direction. This ensures that the amount of fresh water required to completely wash away particles from the items to be washed 10 is introduced into the fresh-water rinsing zone 6 of the continuous-flow dishwasher 1.
• the drive 50 associated with the slide 49 reverses and displaces the carriage 49 in the direction of travel 40, ie in the direction of transport 9 of the ware 10, until the rear end point 43 is reached.
• the cleaned and now clearly rinsed items to be washed 10 enter the drying zone 7, in which the items to be washed leaving the fresh water rinsing zone 6 are dried and optionally cooled.
• FIG. 2 schematically shows a treatment zone of the continuous-flow dishwasher, in which the spray systems are arranged pivotable relative to the transport direction of the transport device.
• the fresh-water rinsing zone 6, which is located between a schematically indicated pump rinsing zone 5 and a schematically indicated drying zone 7 as shown in FIG. 2, illustrates a further embodiment of the idea underlying the invention.
• the Frischwasser Hughessysteme 41 and 42 shown in Figure 2 are pivotable about pivot axes 58 and 59, respectively.
• Each of the pivot axes 58 and 59 is associated with a drive M, which are each in communication with the machine control 55.
• the upper freshwater rinsing system 41 is rotatable about the pivot axis 59 in the lower region of the fresh water rinsing zone 6, while the lower fresh water rinsing system 42 is rotatable about the pivot axis 58 arranged in the upper region of the fresh water rinsing zone 6.
• the swivel range is designated by the circular arc segment 64 with respect to the upper freshwater rinsing system 41 with respect to the lower fresh water rinse system 42 by the circular arc segment identified by reference numeral 65.
• the transport device 11 conveys items to be washed, not shown, in the transport direction 9 through the fresh water rinsing zone 6.
• the ware 10 conveyed by the conveying device 11 wets from the top and from the underside.
• the upper freshwater rinsing system 41 pivotable about the pivot axis 59, the presence of items to be washed in the entry region of the fresh water rinsing zone 6 is detected by the detector 63.
• the detector 63 which is connected to the machine control 55, determines - analogously to the embodiment according to FIG. 1 - the transport speed with which the items to be washed are transported in the transport direction 9 through the fresh water clearing zone 6.
• the fresh water pump not shown in FIG. 2
• the magnetic valve associated therewith are actuated by the machine control 55, and the drive M, which is associated with the pivot axis 59, is switched on.
• the upper Frischbergklar Hughessystem 41 pivots counterclockwise in the direction of the first Verfahr Kunststoffes 39 against the transport direction 9 of the ware 10 through the Frischiganklar Hugheszone 6.
• the angular velocity with which the freshwater rinsing systems 41 and 42 are moved about their respective pivot axes 58 and 59, respectively, is optimized by the machine control 55 in an advantageous manner as a function of the previously determined transport speed of the items to be washed by the fresh water rinsing zone 6. This ensures that the items to be washed cleaned by the fresh water rinsing zone 6 and cleared there are rinsed clear with the required amount of fresh water, which ensures complete washing away of particles from the dishes to be washed clear.
• the freshwater rinsing systems 41 and 42 are returned to their starting position, ie in the direction towards the exit area, ie in the direction of the arrow 40 of the freshwater rinsing zone 6, as well the fresh water pump is turned off by the machine control 55.
• the amount of fresh water which is registered for example within the Frischbergklar Hugheszone 6 in a continuous dishwasher 1, in an optimal manner to the transport speed of the dishes 10 adjust.
• Washing zone 42 lower freshwater rinsing system

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• Washing And Drying Of Tableware (AREA)

Applications Claiming Priority (2)

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• 2005
  • 2005-02-01 DE DE102005004300A patent/DE102005004300B4/de not_active Expired - Fee Related
• 2006
  • 2006-01-10 AT AT06700357T patent/ATE527928T1/de active
  • 2006-01-10 EP EP06700357A patent/EP1843694B1/fr not_active Expired - Lifetime
  • 2006-01-10 WO PCT/EP2006/000117 patent/WO2006081914A1/fr not_active Ceased
• 2007
  • 2007-08-01 US US11/882,467 patent/US20080029131A1/en not_active Abandoned

Non-Patent Citations (1)

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