EP1699338B1 - Lave-vaisselle a mode de fonctionnement casher - Google Patents

Lave-vaisselle a mode de fonctionnement casher Download PDF

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Publication number
EP1699338B1
EP1699338B1 EP04803488A EP04803488A EP1699338B1 EP 1699338 B1 EP1699338 B1 EP 1699338B1 EP 04803488 A EP04803488 A EP 04803488A EP 04803488 A EP04803488 A EP 04803488A EP 1699338 B1 EP1699338 B1 EP 1699338B1
Authority
EP
European Patent Office
Prior art keywords
operating mode
cleaning
conveyor belt
kosher
automatic dishwasher
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.)
Not-in-force
Application number
EP04803488A
Other languages
German (de)
English (en)
Other versions
EP1699338A1 (fr
Inventor
Thomas RÖDERER
Norbert Suhm
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.)
Meiko Maschinenbau GmbH and Co KG
Original Assignee
Meiko Maschinenbau GmbH and Co KG
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
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Publication of EP1699338A1 publication Critical patent/EP1699338A1/fr
Application granted granted Critical
Publication of EP1699338B1 publication Critical patent/EP1699338B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47L15/24—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
    • 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
    • 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
    • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
    • A47L15/0057—Cleaning of machines parts, e.g. removal of deposits like lime scale or proteins from piping or tub
    • 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
    • A47L15/247—Details specific to conveyor-type machines, e.g. curtains
    • A47L15/248—Details specific to conveyor-type machines, e.g. curtains relating to the conveyors
    • 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
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
    • 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
    • A47L2301/00—Manual input in controlling methods of washing or rinsing machines for crockery or tableware, i.e. information entered by a user
    • A47L2301/04—Operation mode, e.g. delicate washing, economy washing, reduced time, sterilizing, water softener regenerating, odor eliminating or service
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/05—Drain or recirculation pump, e.g. regulation of the pump rotational speed or flow direction
    • 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
    • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
    • A47L2501/24—Conveyor belts, e.g. conveyor belts motors

Definitions

  • the invention relates to a dishwasher, in particular a belt-type dishwasher, which is used for commercial purposes.
  • the dishwashing machine proposed according to the invention can be used both in kosher operation and on religious holidays, such as the sabbath.
  • a conveyor belt automatic dishwashing machine in which the items to be washed are transported on a continuous conveyor belt.
  • the material to be cleaned is positioned at the machine inlet on the conveyor belt and passes first a dirt discharge.
  • About spray nozzles from which emerge the cleaning material to be cleaned from the bottom and the top spraying jets of water are rinsed within the Schmutzaustrags falling food particles.
  • the machine inlet is covered by a hood.
  • Below the conveyor belt are one or more coarse sieves which catch the falling food particles. A fine sieve arranged underneath can be used to hold back the smallest food particles. Below the fine sieve, in turn, there is a collecting container for the rinsing water dripping from the dirt discharge.
  • the machine inlet and the adjoining coarse cleaning area seen in the transport direction of the cleaning material several rinsing zones are arranged one behind the other lying. Within these rinse zones, the items to be cleaned are treated with hot rinse water.
  • the hot rinse water exits both from spray nozzles, which are arranged below the endless conveyor belt, as well as from spray nozzles, which to be cleaned Rinse the items to be cleaned from the top.
  • the cleaning material to be cleaned is conveyed by the endless conveyor belt into at least one further rinsing zone in which it is likewise rinsed off by spray jets.
  • the rinsing water emerging from the spray nozzles within said rinsing zones is heated to a higher temperature, with which the items to be cleaned, which have been taken up on the endless conveyor belt, are rinsed off. After the second rinsing zone, the items to be cleaned can be transported either into a final rinse zone or into another rinse zone.
  • a cascade-shaped collecting container is provided below the rinsing zones or the final rinse zone.
  • the receptacle is divided by individual partitions into individual segments. The partitions are dimensioned so that when reaching a certain water level in each segment overflow of the rinse water is ensured in the previous segment.
  • Each segment of the flushing water tank is associated with a washing pump, with which from the respective segment of the Spüliganvorratstanks after prior filtering of the wash water rinse water is supplied to the individual spray nozzles of the respective rinse zone or rinse.
  • a heat recovery unit is provided, which can optionally be assigned to an exhaust air purification unit.
  • This unit is followed by a drying fan, via which warm air can be applied to the cleaned and clear-rinsed cleaning, so that it is dried by the continuous drying process and cooled.
  • a dish dispensing at which the cleaned, rinsed and dried dishes can be removed from the tape transport machine either manually or automatically.
  • the individual rinsing zones are accessible by retractable contactors. Under the shooters are curtain elements, with which the individual rinsing zones are provided to prevent the lateral escape of spray water.
  • EP 0 980 670 B1 relates to such a tray through-dish washing device and method of operating the continuous-dish washing device.
  • the continuous dishwashing machine comprises a cleaning zone and a cleaning tank.
  • a rinsing zone is provided with outlet nozzles for final rinse liquid and a rinse tank. These are followed by a drying zone.
  • Each of the baskets passes successively through the cleaning, rinsing and drying zones.
  • the presence of a crockery basket entering the continuous dishwashing device is detected by a detection device arranged on the input side.
  • a detection device arranged on the input side.
  • a first memory location of an electronic memory device having a sequential memory location arrangement is occupied by a presence signal.
  • Each memory space occupancy after a predetermined time interval has elapsed, is forwarded to the respective subsequent memory location, wherein the first memory location is occupied in dependence on a new presence or absence signal detected by the detection device.
  • the position of a crockery basket is determined based on the occupancy of the memory locations of the sequential memory location arrangement with presence signals.
  • the kosher diet is defined.
  • the word kosher denotes everything that was produced or prepared according to the religious law of the Jews.
  • the kosher diet follows the rules of Kashrut (Jewish diet). After that, only quadrupeds, which ruminate and split their food, may be eaten Have hooves. Pigs, for example, or rabbits are not included. Poultry, on the other hand, is kosher. In fish, only those who have fins and scales are released for consumption.
  • the fifth book of Moses is the basis for the prohibition to eat meat and milk or dairy products at the same time. After eating meat, wait 6 hours before eating or drinking a milk product.
  • the invention has the object, a dishwasher, especially a commercial Applicable dishwasher, be designed so that in one and the same dishwasher both with dairy products in contact dishes, as well as dishes in contact with meat can be cleaned and the same dishwasher during the Sabbath or other Jewish holidays can be operated smoothly.
  • the advantage of the proposed solution according to the invention is to be seen in the fact that now in one and the same commercially applicable dishwasher different types of dishes can be rinsed, which are understood in particular those who were previously in contact with dairy products as well as such dishes, which with meat or Meat dishes has come into contact.
  • a kosher cleaning step is carried out the entire machine is cleaned with a cleaning fluid.
  • the cleaning fluid is brought according to Jewish beliefs to a temperature which is up to 10 ° C above that which occurs in the dishwasher maximum in normal operation.
  • the dishwashing machine with belt transport which can be used in the Jewish circle of belief has a cleaning system which serves to clean the endless conveyor belt for the material to be cleaned.
  • This belt remains in the dishwasher both during the "cleaning dairy-contacted dishes” operating mode and during the "cleaning dishes in contact with meat or meat dishes” operating mode in the machine and is cleaned by a cleaning device during the kosher step .
  • a cleaning step for the belt cleaning takes place. This can be done for example by the endless conveyor belt associated cleaning brushes. These are arranged such that the endless conveyor belt is brushed off both from its top and from its underside by cleaning brushes, for example.
  • the endless conveyor belt is made of plastic and is permanently installed in the dishwasher.
  • the inventively proposed, applicable in the Jewish circle of belief dishwasher has a replaceable trained in the individual rinsing zones, hanging curtain, which during the Kosher step when switching between one of the operating modes "cleaning of dishes, which came into contact with dairy products” and " Cleaning crockery which has come into contact with meat or meat products "as a curtain in the individual rinsing zones accessible from the operating side of the dishwasher.
  • the proposed automatic dishwashing machine switches off automatically during the sabbath, avoiding the triggering of a spark, ie by actuating an electric switch via an operator, in an emergency.
  • the dishwasher In the Sabbath operating mode, it must be ensured that, in the event of a fault, the dishwasher is switched off automatically by the machine control, without the need for an operator to act.
  • the automatic tape transport drive can be switched off by the fact that at the moment of absence of a reflected optical signal in the frame of a light barrier, the tape feed and the pump drive are switched off without the intervention of an operator is required.
  • the tape transport automatic dishwasher operates at a certain speed with respect to the feed of the endless conveyor belt.
  • Timers are installed for "cleaning dairy-contact dishes” and “cleaning dishes in contact with meat or meat dishes”.
  • the automatic dishwasher is put into operation by operating a switch which can be designed, for example, as a key-operated switch.
  • the actual start of the dishwasher during the sabbath is done by the time modes associated with the operating modes.
  • the respectively associated first curtains for the operating mode "cleaning of dairy-contact dishes” or the second curtains for the operating mode "cleaning of meat or meat dishes in contact dishes” are hung in the dishwasher.
  • the automatic dishwasher starts in the respective operating mode with the function filling or heating the water tanks. After reaching the set temperature, the actual flushing process begins in the selected operating mode until the timer stops the operating mode. Thereafter, the curtains associated with the mode of operation are exchanged for the curtains required in the Kosher step mode, since a "Kosher step" is required. If the time switch assigned to the previous, selected operating mode is switched off, this triggers the "Kosher step".
  • the dishwasher switches back to the normal sabbath operating mode after a power failure after the power failure and the automatic dishwasher starts the program sequence with the filling / heating of the water tanks.
  • a belt limit switch is activated during the Sabbath operating mode, which is achieved by approaching a limit switch function by a piece of harness not removed from the endless conveyor belt, the drive of the endless conveyor belt is switched off. This causes a voltage-free switching of a light barrier. In a cycle of for example 15 s, the supply voltage of the light barrier is switched on by a short pulse. If this is detected by the fact that the limit switch rocker is free again, the drive of the endless conveyor belt turns on, however, if the limit switch rocker is not recognized as free yet, the supply voltage is switched off again for a period of about 15 seconds. In the case of an EMERGENCY STOP function, which can occur when the corresponding switch is actuated, the automatic dishwasher switches off completely.
  • the rinse operation is automatically switched off. There is a voltage release of the tape overload switch. This is switched on again within a time window of 30 s, for example, by a short pulse of the supply voltage. If the tape overload switch is unlocked, the rinse operation starts again after a horn sound. On the other hand, if the tape overload switch is not enabled, the supply voltage is switched off for a time window of 30 s. This cycle of turning the tape overload switch on and off is performed up to 3 times. If, after the third pass, it is detected that the tape overload switch is still not clear, the polling cycle is set to 5 min. elevated. Is this polling cycle of 5 min. 3 times without success, the dishwasher switches off completely and can not be started automatically in the Sabbath operating mode.
  • the representation according to FIG. 1 is a tape transport dishwasher can be seen.
  • the cleaning material to be cleaned is applied to an endless conveyor belt 10.
  • the endless conveyor belt 10 is moved continuously by means of a drive 24 arranged in the region of a dishwashing output 23 and conveys the items to be cleaned by the conveyor belt dishwasher.
  • the rinsing follows coarse food particles which fall into a coarse sieve 4 arranged below the endless conveyor belt 10, under which optionally a fine sieve 5 can be arranged.
  • a collection process 6 in which the rinse water is collected.
  • the cleaning material to be cleaned is transported to a first rinsing zone 7, which may be followed by a second rinsing zone 8 or a plurality of further rinsing zones.
  • a rinsing of the dishes previously cleaned in the first rinse zone 7 and the second rinse zone 8 or further rinse zones follows in a final rinse zone 9.
  • the endless conveyor 10 is conveyed in the conveying direction 11 by the conveyor belt automatic dishwasher 1.
  • first rinse zone 7 are located above the cleaning material to be cleaned upper spray nozzles 13 and below the endless conveyor belt 10 lower spray nozzles 12 through which the cleaning material to be cleaned is sprayed with rinse water.
  • the first rinse zone 7 is closed laterally against exiting spray.
  • a Vorabhoffmung 3 is closed by a first curtain 40 against escaping to the outside splashing.
  • the first rinsing zone 7 adjoining the pre-evacuation 3 is separated from the second rinsing zone 8 by a further first curtain 40, at the output of which - as seen in the conveying direction 11 of the cleaning material - a further first curtain 40 is arranged.
  • the segment of the water tank 25 assigned to the first rinse zone 7 is separated from other segments of the water tank 25 by a partition wall 26.
  • a circulation pump 29 for the rinse water which is associated with a filter 30.
  • the individual partition walls 26, which subdivide the water tank 25 into individual segments assigned to the rinse zones 7 or 8 or the final rinse zone 9, can be designed as sheet metal walls, for example.
  • the second rinse zone 8 a After passage of the first rinse zone 7 occurs during the promotion of the endless conveyor belt 10 in the conveying direction 11, the recorded on this cleaning material in a second rinse zone 8 a.
  • the second rinse zone 8 Within the second rinse zone 8 are upper spray nozzles 15 and lower spray nozzles 14.
  • This is followed by a further rinsing of the cleaning material to be cleaned within the second rinse zone 8 with rinse water, which is brought to an elevated temperature. While the temperature of the rinsing water received in the water tank 25 and the heated fresh water introduced in the rinsing zone 9 is about 80 ° C. to 85 ° C., the water injected within the pre-evacuation 3 has a maximum temperature of 42 ° C., which meets the kosher requirements enough. A lower temperature of the water injected within the pre-evacuation 3 would be accompanied by the disadvantage of obesity of the cleaning material to be cleaned.
  • the second rinsing zone 8 is also associated with a segment of the water tank 25, at the bottom of which a circulating pump 29 with associated filter 30 is accommodated. About this, the segment of the water tank 25 of the second rinse zone 8 associated circulating pump 29, the upper spray nozzles 15 and the lower spray nozzles 14 are supplied with rinse water.
  • the second rinsing zone 8 is followed by a rinsing zone 9 in the conveying direction 11 of the cleaning material to be cleaned.
  • a rinsing zone 9 in the conveying direction 11 of the cleaning material to be cleaned.
  • the rinse zone 9 is also associated with a pump with which the spray nozzles in the rinse zone 9 are supplied with fresh water, possibly with the addition of a cleaner or a rinse aid.
  • a pump clear rinse 31 and a pure fresh water rinse 32 is a pump clear rinse 31 and a pure fresh water rinse 32.
  • the clear rinse zone 9 is followed in the conveying direction 11 of the cleaning material to be cleaned by a heat recovery module 17, in which a cooling register 18 is accommodated.
  • the heat recovery module 17 also has a fan 19.
  • the heat recovery module 17 is followed by a drying module 20, in which a designed as a fan hot air dryer 21 is arranged.
  • a drying module 20 Upon passage of the drying zone 22, the previously cleaned and rinsed clean goods received on the endless conveyor belt 10 are dried and cooled so that they can be removed from the endless conveyor belt 10 in the dishwashing output 23.
  • the in FIG. 1 not shown drive 24 received for the endless conveyor belt 10.
  • the inventive tape transport automatic dishwasher 1 comprises a cleaning device 43, with which the recorded in the machine made of plastic endless conveyor belt 10 can be cleaned both at its top as well as on its underside.
  • the cleaning device 43 formed by a pair of oppositely disposed brushes, is disposed between the pump flush 31 and the fresh water rinse 32.
  • the tape transport dishwasher 1 according to the illustration in FIG. 1 a limit switch strip 50, which is assigned a first light barrier 52 and another, second light barrier 52, which detects an overload of the drive 24 of the endless conveyor belt 10 and about - in a promotion of the endless conveyor belt 10 obstructing makesgutteil the drive 24 turns off.
  • first curtains 40 Splashing water in this mode of operation consequently contaminates only the first curtains 40.
  • a cleaning of the endless conveyor belt 10 is performed by a cleaning device 43, so that both the underside of the endless conveyor belt 10 and its upper side are brushed off by mechanical means.
  • the endless plastic conveyor belt consisting of individual plastic limbs 10 is kosher in the sense of the Jewish kashrut.
  • the replacement of the first curtains 40 and the second curtains 41 by a third curtain 42 to be used only within the "Kosher step" mode of operation prevents contamination of the respective "Dishes for Dairy Dishes" operating mode, i. the first curtains 40 and the second curtains 41, which are mounted in the operating mode "cleaning of dishes meat / meat products" at the respective suspension points of the conveyor belt dishwasher 1.
  • the in FIG. 1 shown tape transport dishwasher 1 has a limit switch bar 50 which triggers an automatic shutdown of the drive 24 of the endless conveyor belt 10.
  • the limit switch 50 is associated with a first light barrier 52, while the drive 24, which is preferably mounted on a rocker, a second light barrier 52 is assigned.
  • the mentioned first and second light barriers 52 are described in more detail in the context of the operating mode "Sabbath operation".
  • FIG. 2 the overflow or drainage system of a suitable for kosher operation tape transport dishwasher can be found.
  • a first fill line 47 opens from a fresh water connection (not shown) within the segment of the water tank 25 below the final rinse zone 9.
  • a valve 49 is received in the first fill line 47.
  • the partition of the segment of the water tank 25 below the final rinse zone 9 is formed as an overflow 28, so that water can cascade overflow into the segment of the water tank 25 below the second rinse zone 8.
  • the partition 26 of the segment below the second rinse zone 8 is also formed as an overflow 28. Via this overflow 28, the water flows into the segment of the water tank 25 below the first rinse zone 7.
  • the segment of the water tank 25 below the first rinse zone 7 comprises a second drain 46, since the segment of the water tank 25 below the first rinse zone 7 is separated by a partition wall 33 of the pre-clearance 3.
  • Each of the segments of the water tank 25 is associated with a circulation pump 29 and a filter 30.
  • the supply of Vorabhoffmzone 3 with fresh water via the second filling line 48 is carried out separately.
  • the water used in the pre-evacuation 3 has only a maximum temperature of 42 ° C., while the water injected in the first rinse zone 7 and in the second rinse zone 8 and in the final rinse zone 9 has a temperature in the range between 55 ° C. and 85 ° C. having.
  • each shown in section tape transport automatic dishwashers 1 have a separation of the tank segment of the Vorabhoffmung 3 with respect to overflowing the overflows 28 cascade water from the segments of the storage tank 25 of the first rinse zone 7 and the second rinse zone 8 and the rinse 9. Accordingly, the belt transport automatic dishwashing machine has two outlets 45, 46.
  • the waste water is combined outside the mentioned tanks in the collecting process 6.
  • the distance between the last wash arm of the pre-removal 3 and the tank separation 33 is at least 40 cm.
  • the segment of the storage tank 25, which is associated with the Vorabhoffmung 3 has a separately controlled own tank heating, since the temperature of the water used in the Vorabhoffmung 3 in the rinsing operation must not exceed a temperature of 42 ° C.
  • the limit switch strip 50 is not queried via a magnetic switch, but via a first light barrier 52.
  • Two sets of lower and upper band brushes are used as the cleaning device 43, which are arranged between the pump flush 31 and the fresh water rinse 32.
  • the sewage pumps used are provided in all segments of the storage tank 25 in terms of an automatically running program flow in the operating mode "Sabbath operation".
  • the operating mode "Kosher step” is automatically started after each rinsing operation, outside the sabbath, i. on normal days of the week, a start of the operation mode "kosher operation” by manual way. To do this, the third curtains 42 must be hung before starting the operating mode "Kosher process”. Then a start of the kosher process, the drain pumps are activated, with a follow-up time of the drain pumps of about 2 min is guaranteed. During a subsequent period of about 30 minutes, the tape transport automatic dishwasher 1 can be cleaned manually.
  • the drain pumps pump down cyclically (cycle: every 2 min for 30 s).
  • the cleaning device 43 which can be formed as a pair of brushes, wherein the brushes each brush off the top and bottom of the endless conveyor belt 10.
  • the endless conveyor belt 10 runs at the fastest speed and the rinse within the final rinse zone 9 is in operation. This process step takes two complete belt orbits of the endless conveyor 10 at the fastest speed.
  • the drain pumps pump off the water.
  • the tape transport dishwasher 1 is filled and there is a heating of the water to a Kosher temperature of about 95 ° C.
  • the operating mode "kosher step” starts. This means that the circulation pumps 29, the drive of the endless conveyor belt 10 and the exhaust air extraction are in operation.
  • the duration of the Kosher process mode is limited to two full band orbits at a medium machine speed.
  • all segments of the storage tank 25 are emptied. This is followed by a removal of the cleaning device 43 and a removal of the third curtains 42 at the machine inlet 2 and at the Geschirrausgabe 23.
  • the operating mode "Kosher step” between the operating mode “Cleaning Dishes for Dairy Products” and the operating mode “Cleaning Dishes for Meat / Meat Products” can not be interrupted, with the exception of the working day mode, where a break caused by opening a door can be. If the program sequence during the operating mode "Kosher step” when filling / heating the storage tank 25 is interrupted, which can be done for example by opening a door, so fills or heats the tape transport automatic dishwasher 1 on. If the program sequence is interrupted during the operating mode "Kosher step", the pumps and the drive 24 switch off. When the doors on the conveyor belt automatic dishwasher 1 are closed again, the operating mode "kosher step” runs exactly at the point at which it was interrupted.
  • FIG. 3 the machine outlet can be seen with a movably arranged limit switch strip.
  • the endless conveyor belt 10 made of plastic material is deflected in the area of the dishes 23.
  • a crockery part 51 is located, which was not removed in the dishes 23 and therefore strokes the movable mounted limit switch 50. This pivots away and triggers a stop of the drive 24 of the endless conveyor belt 10.
  • the conveying direction of the endless conveyor belt 10 is indicated by the arrow 11.
  • FIG. 4 shows the view of a light barrier arrangement, which is associated with the movably mounted limit switch.
  • a first light barrier 52 is placed below the dishwashing output 23 of the conveyor belt dishwasher 1.
  • the movably mounted limit switch strip 50 is in FIG. 4 not shown for reasons of clarity.
  • the first photocell 52 which at the Outside of the housing 54 is attached, is connected via a connecting line 55 with the machine control in connection.
  • a circular opening 58 is formed, behind which a movably mounted mirror surface 53 is located. In the undeflected state of the limit switch strip, the mirror surface 53 reflects light emitted by the first light barrier 52.
  • the drive 24 of the endless conveyor belt 10 remains in operation. Only when a stop of the endless conveyor belt 10 is not removed harness portion 51 on the limit switch 50 is a Wegschwenken behind the opening 58 lying mirror surface 53 and an interruption of the reflection of emitted light rays through the first light barrier 52nd
  • FIG. 5 the connection between a mirror surface and the movably mounted limit switch strip can be seen.
  • the movably mounted limit switch strip 50 - indicated by the double arrow in accordance with FIG. 5 - A bracket 56.
  • the bracket 56 is connected via a return spring 57 to the machine frame of the conveyor belt dishwasher 1.
  • the mirror surface 53 is attached. If the movably mounted limit switch strip 50 is deflected downward by striking a dishware part 51 in the direction of the double arrow, a pivoting movement of the clip 56 and, consequently, a pivoting of the mirror surface 53 accommodated on the clip 56 occurs. This emerges from the opening 58 of the housing 54 according to FIG. 4 so that no light is reflected back to the first light barrier 52.
  • FIG. 6 a deflected limit switch strip can be seen.
  • the drive motor 59 is mounted on a Wipplagerung 60.
  • the drive motor 59 drives via a belt or chain drive a deflection wheel of the endless conveyor belt 10 in the area of the dishwashing output 23 of the conveyor belt dishwasher 1. If its feed in the conveying direction 11 is inhibited by a piece of dishware 51 or one not remaining in the conveyor belt dishwasher 1, the drive motor 29 is deflected from its normal position on the rolling bearing 60. Because of this, one moves with the drive motor 59 connected mirror surface 53 from the area of an in FIG. 1 shown second photocell 52 out, so that the Drive motor 59 can be switched off even with an overload of the endless conveyor belt 10.
  • the representation according to FIG. 7 is a panel of a tape transport dishwasher can be found that is able to perform a separate operating mode "Kosher step” and a mode of operation "Sabbath operation”.
  • control panel 70 is the in FIG. 1 shown tape transport dishwasher 1 operated. Via the first switch 71, the operating mode "cleaning of dishes for dairy products" is turned on. Within this mode of operation, the tape transport automatic dishwasher 1 is provided with the first curtains 40. After a cleaning program, ie a complete passage of the dishes to be cleaned by the conveyor belt dishwasher 1, a direct switch is excluded in the triggerable via a second switch 72 operating mode "cleaning dishes for meat / meat products". Direct switching from one operating mode to the other operating mode is not possible. This is ensured by the fact that the switching from one operating mode to the other and vice versa requires the execution of the operating mode "Kosher step".
  • the endless conveyor belt 10 which consists of individual, hingedly interconnected plastic members, cleaned by a formable as a brush cleaning system 43 in terms of kosher kosher. Furthermore, during the operating mode "kosher step”, heating within the water tank 25 likewise takes place to a temperature which is above the maximum temperature of the rinsing water or fresh water sprayed in the conveyor belt automatic dishwasher 1.
  • control panel 70 a for example by means of a key or the like operable fourth switch 74.
  • the tape transport automatic dishwasher 1 as shown in the FIGS. 1 and 2 be converted into an adapted for Jewish holidays, such as the Sabbath, operating mode. If the tape transport automatic dishwasher 1 is switched to this operating mode by actuating the fourth switch 74, then the tape transport automatic dishwasher 1 operates largely automatically, although manual interventions are permitted and switches itself off automatically when disturbances occur.
  • both the Wipplagerung 60 of the drive motor 59 and the limit switch bar 50 may be assigned.
  • the limit switches are preferably designed as first and second light barriers 52.
  • the light barriers 52 emit a light beam onto a deflectable mirror surface 53, which is received on a bracket 56.
  • bracket 56 is deflected due to a feed piece of the endless conveyor belt 10 obstructing dishware 51, which is reflected from the light barrier 52 emitted light beam reflecting mirror 53 from the area of the light barrier 52, so that the receiver part of the light barrier 52 detects no reflected beam. Due to the absence of the reflected light beam of the drive 24, 59 of the endless conveyor belt 10 is turned off. After removal of the feed of the endless conveyor belt 10 obstructing harness portion of the deflection mirror takes its original position again and the tape transport automatic dishwasher 1 resumes its operation.
  • operating mode "Sabbath operation” operating mode of the conveyor belt dishwasher, there is no function to be electrically switched, which would be performed by an operator. Everything runs automatically. A provided within the machine control clock circuit is out of order, also the door switches are disabled.
  • the conveyor belt automatic dishwasher 1 operates at a lower speed.
  • Each operating mode ie the operating mode cleaning dishes for dairy products or cleaning dishes for meat / meat products is assigned its own timer.
  • the fourth switch 74 is turned on in time for the sabbath.
  • Corresponding first or second curtains 40 or 41 are to be suspended in the conveyor belt dishwasher 1. When switching on the timer assigned to the corresponding operating mode begins the tape transport dishwasher with the function fill / heating the storage tank 25 with water.
  • the respective flushing process begins until the timer stops the flushing process.
  • the first and second curtains 40, 41 are exchanged for the third curtains 42; then the operating mode "Kosher step” is started via the timer. After completing the operating mode "Kosher step", the flushing process is started again following the settings of the timers.
  • the fourth switch 74 is turned off.
  • the tape transport automatic dishwasher is restarted via the machine control and a normal "Sabbath mode" operating mode, i. the tape transport automatic dishwasher 1 starts in the program flow with the filling or heating of the water tank.
  • the Bandendschalterfunktion triggered by a abutting on the Endschalterance 50 crockery 51 the limit switch bar 50 is deflected down and turns off the drive motor 49 of the drive 40 of the endless conveyor belt 10 from.
  • the first light barrier 52 is de-energized. Every 15 s, the supply voltage of the first light barrier 52 is switched on by a short pulse. If it is determined that the limit switch bar 50 is free again, the feed of the endless conveyor belt in the conveying direction 11 begins. However, if the limit switch bar 50 is not yet free, the supply voltage is switched off for a further 15 seconds.
  • the flushing operation is switched off and a tape circuit breaker is de-energized. This is done via the second light barrier 52. Every 30 s, the supply voltage of the tape circuit breaker is switched on again by a short pulse. If this is enabled, the purging operation begins, if the corresponding tape circuit breaker has not yet been de-energized, the supply voltage is switched off again for 30 s.
  • the cycle of this cycle can be done, for example, three or three times or more. If, after the third time, the tape overload switch is still not free, the polling cycle is increased to 5 minutes. If this cycle has also been run through three times without success, the conveyor belt dishwasher 1 switches off completely and can no longer be started automatically in the operating mode "Sabbath operation".

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Saccharide Compounds (AREA)

Claims (10)

  1. Procédé de fonctionnement d'un lave-vaisselle (1) avec un convoyeur à bande sans fin (10) transportant en continu des charges à nettoyer, lequel convoyeur étant entrainé par l'intermédiaire d'un entraînement (24) pouvant être commandé par une commande de machine et le lave-vaisselle (1) pouvant fonctionner en plusieurs modes de fonctionnement (71, 72, 73, 74), caractérisé par les étapes de procédé suivantes :
    a) lors du passage d'un premier mode de fonctionnement (71) destiné au nettoyage de vaisselle pour produits laitiers, à un deuxième mode de fonctionnement (72) destiné au nettoyage de vaisselle pour viande et produits de viande et inversement, on force l'exécution d'un troisième mode de fonctionnement "étape casher" (73) ,
    b) au cours du troisième mode de fonctionnement (73) "étape casher", l'intérieur du lave-vaisselle (1) est nettoyé avec un fluide de nettoyage dont la température est supérieure à la température d'eau de lavage ou d'eau douce intervenant dans les autres modes de fonctionnement du lave-vaisselle (1),
    c) au cours du troisième mode de fonctionnement (73) "étape casher", le convoyeur à bande sans fin (10) est nettoyé en continu par un dispositif de nettoyage (43),
    d) au cours du troisième mode de fonctionnement (73) "étape casher", le lave-vaisselle (1) est muni d'un rideau (43) à utiliser exclusivement dans le troisième mode de fonctionnement (73) "étape casher",
    e) au cours d'un quatrième mode de fonctionnement (74) "fonctionnement sabbat", une fonction de coupure de l'entraînement (24, 59) du convoyeur à bande sans fin (10) est appliquée en cas de surcharge et en cas de coupure via des barrières lumineuses (72).
  2. Procédé selon la revendication 1, caractérisé en ce qu'au cours du troisième mode de fonctionnement (73) "étape casher", le fluide de nettoyage pour nettoyer les zones du lave-vaisselle contaminées au cours du premier mode de fonctionnement (71) ou au cours du deuxième mode de fonctionnement (72) présente une température comprise entre 90 °C et 95 °C.
  3. Procédé selon la revendication 1, caractérisé en ce qu'au cours du troisième mode de fonctionnement (73) "étape casher", le convoyeur à bande sans fin (10) est nettoyé en continu sur ses faces supérieure et inférieure par un système de nettoyage (43).
  4. Procédé selon la revendication 3, caractérisé en ce qu'au cours du troisième mode de fonctionnement (73) "étape casher", on munit le système de nettoyage (43) d'un jeu de brosses de nettoyage correspondant au mode de fonctionnement précédent (71) ou (72).
  5. Procédé selon la revendication 1, caractérisé en ce qu'au cours du premier mode de fonctionnement (71) destiné au nettoyage de vaisselle pour produits laitiers, on accroche exclusivement les premiers rideaux (40) dans le lave-vaisselle.
  6. Procédé selon la revendication 1, caractérisé en ce qu'au cours du deuxième mode de fonctionnement (72) destiné au nettoyage de vaisselle pour viande et produits de viande, on accroche exclusivement les deuxièmes rideaux (41) dans le lave-vaisselle.
  7. Procédé selon la revendication 1, caractérisé en ce qu'en passant du premier mode de fonctionnement (71) destiné au nettoyage de vaisselle pour produits laitiers, au deuxième mode de fonctionnement (72) destiné au nettoyage de vaisselle pour viande et produits de viande et inversement, le troisième mode de fonctionnement (73) "étape casher" s'exécute systématiquement.
  8. Procédé selon la revendication 1, caractérisé en ce qu'au moyen d'un quatrième commutateur (74) prévu sur le panneau de commande (70), le lave-vaisselle (1) peut passer en mode de fonctionnement "fonctionnement sabbat", dans lequel, lorsque des dysfonctionnements se produisent, a lieu une coupure automatique de l'entraînement (24, 59) du convoyeur à bande sans fin (10) ainsi que des pompes de recirculation (29) et de l'alimentation en eau douce.
  9. Procédé selon la revendication 8, caractérisé en ce qu'au cours du quatrième mode de fonctionnement (74) du lave-vaisselle (1), un blocage du mouvement de transport (11) du convoyeur à bande sans fin (10) est détecté par un commutateur de fin de course (50) conçu sous forme de barrière lumineuse (52).
  10. Procédé selon la revendication 9, caractérisé en ce que la détection du convoyeur à bande sans fin (10) bloqué s'effectue via une barrière lumineuse (52), qui à l'aide d'un miroir pouvant être dévié par l'intermédiaire d'un système à levier (56), actionné en cas de blocage du mouvement de transport (11) du convoyeur à bande sans fin (10), déclenche une coupure de courant.
EP04803488A 2003-12-08 2004-12-03 Lave-vaisselle a mode de fonctionnement casher Not-in-force EP1699338B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10357256A DE10357256B3 (de) 2003-12-08 2003-12-08 Geschirrspülmaschine für Koscher-Betrieb
PCT/EP2004/013764 WO2005053500A1 (fr) 2003-12-08 2004-12-03 Lave-vaisselle a mode de fonctionnement casher

Publications (2)

Publication Number Publication Date
EP1699338A1 EP1699338A1 (fr) 2006-09-13
EP1699338B1 true EP1699338B1 (fr) 2010-03-24

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EP04803488A Not-in-force EP1699338B1 (fr) 2003-12-08 2004-12-03 Lave-vaisselle a mode de fonctionnement casher

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Country Link
US (1) US20060180179A1 (fr)
EP (1) EP1699338B1 (fr)
AT (1) ATE461651T1 (fr)
DE (2) DE10357256B3 (fr)
IL (1) IL170032A (fr)
WO (1) WO2005053500A1 (fr)

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CN110974108A (zh) * 2019-12-13 2020-04-10 南京科莱尔节能设备有限公司 一种两腔式水循环洗碗装置及方法

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DE102011017294A1 (de) * 2011-04-15 2012-10-18 Meiko Maschinenbau Gmbh & Co. Kg Transportspülmaschine mit Sonderbehandlungszonen
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CN110974108A (zh) * 2019-12-13 2020-04-10 南京科莱尔节能设备有限公司 一种两腔式水循环洗碗装置及方法
CN110974108B (zh) * 2019-12-13 2021-02-12 南京科莱尔节能设备有限公司 一种两腔式水循环洗碗装置及方法

Also Published As

Publication number Publication date
EP1699338A1 (fr) 2006-09-13
US20060180179A1 (en) 2006-08-17
WO2005053500A1 (fr) 2005-06-16
DE502004010946D1 (de) 2010-05-06
DE10357256B3 (de) 2005-06-09
IL170032A (en) 2009-08-03
ATE461651T1 (de) 2010-04-15

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