DE1806107A1 - Method and device for cleaning objects - Google Patents

Description

DR. ELISABETH JUNG, DR. VOLKER YOSSIUS ₁ DIPL.-iNG. GERHARD COLDBWEY

PATENT LAWYERS 1 β Π fi 1 Π

8 MONCH EN 23 SI EG ES STRASSE 26. TELEPHONE 34S0 67. TELEGRAM ADDRESS: INVEN T / MDNCHEN

tt.Z ·: I? 834 3O ₀ Oct 1968

(Gy / Kn) 079 097

IHDi / 31'tIAL WASHING MACHINS CORPORATION Matawan, Hew Jersey, V.St.A "

Method and device for cleaning objects

Priority: October 30, 1967, Y.S't.JU Registration number: 679 097

The iärfindung relates to methods and devices for Washing or »cleaning of essentially rigid industrial products and components? an applicability of the procedure and the device of the invention is particularly useful in the maintenance of cages and racks used in laboratories as well as when cleaning pots, racks and others Devices used in the industrial manufacture of

Q cakes and pies are used as well as bread baked

^ In the washing machines known up to now for the named

° purposes, there is a disadvantage that parts of the fiaum, in the » ο the floors to be cleaned are arranged, often only in κ> a relatively small extent o with the cleaning solution come into contact * With the previously known Waech or

POST CHECK ACCOUNT: MÖNCHEN BOI76 · BANK ACCOUNT: DEUTSCHE BANK AG MÖNCHEN. LEOPOLD8TR. 71. KTO. NU.

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Filing rooms could not avoid such inaccessible zones * 2 attempts were made to avoid the disadvantage mentioned above by using turntables, but the proposals in question have not proven to be successful in every respect, " The use of turntables only ensures "that certain concentric zones are hit by the waterways created while the objects below the water currents are rotated""in order to bring them into contact with the washing solution, but gaps still remain between these icon tri · * 2ones as well as within the zones themselves «

In order to ensure the desired cleaning effect, it would be necessary not only to change the zones or areas which are exposed to the action of the sprayed-out solution ρ soacisra you would have to make sure that the angles change ₉ below · impinge where the streams or jets of rt'aschlösung to be cleaned articles- the invention now provides methods and devices in front of _0, these demands correspond to the iSrfindung * further provides a feasible with the aid of a single device pROCEDURE "for automatically cleaning objects to sur achieve a hygienic "state before" is has been shown ₉ that ee _p to achieve the effect of the application of the invention are possible, which largely corresponds to a scrubbing action "This is zuriieksuf watch on the" inkela öaß under which Heini Gung liquid meets the cleaning surfaces _? be changed so ₉ that sieve, © ine results in an almost infinite number of different angles of incidence «

The method and the device according to the invention make it possible to achieve a more thorough cleaning of the objects in question; This proves to be particularly advantageous in those cases in which "high demands are placed on cleanliness." called las height dimension ,, cleanliness that would be achieved by the invention "is also economical compared to the bia now known" piecemeal operating cleaning process on

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lighter, faster and more scientifically "sound" Wise achieved «

The "method and apparatus of the invention disclosed in the following are described in more detail »enable on industrial Basis is the JSrrsichung a cleanliness level, which is up to can now only be achieved in time-consuming manual labor., This degree of cleanliness is considerable according to the invention Achieved faster and more economically than manual labor, and in particular such an even cleaning is achieved achieved in a way that is only possible on the basis of scientific experiments.

The main object of the invention is thus to vary ₉ to -Jlnkel au under which the tfaschlösung incident on the different parts der'au cleaning items and sorgenj ensure that all Flächenabsehnitte of the items from the washing solution reaches v / ground "Perner sees the invention, a more scientific and rational procedure for cleaning of equipment UNAE instruments ago ₀ Further, the invention provides measures to all surfaces of the articles to be cleaned to suspend an effective "can be referred to as Sehouerwirkung, Perner, the invention enables lärreichung a scientific demands sufficient cleanliness degree before how it can not be achieved with the devices known up to now *

The invention now provides a method for automatic bottles or * cleaning of objects before _p which comprises measures. To arrange the objects on a turntable, to rotate aen turntable together with the objects and streams of a .vaschiquid with the help of at least one rotatable spray head to direct the most varied angles onto the surfaces of the objects, in order to turn the turntable together with the or each spray head, and to rotate the - or * ^ ede spray head in a plane which has a larger angle with the plane of rotation called the Dröhtiaches forms.

. ■ • 'oy: rr.-jc oiehc die Erz i η el vn, <i a Waach- b? Jv / _ff rinsing "or Relrii -. ^ 5?; G« ma sohinQ ^ ror, hurry a turntable aura pick up eggs too

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comprises reinigettdso objects ,, feroer at least one rotating "" cash spray head, by means of which a cleaning fluid in the form of beam is directed on the objects, wherein the gas head in a axis © is rotatably supported _s AEIE a larger angle with der.Drehachse öes turntable romped; and 7! o] jei a 5? part of the. Bs- ^ e-giffigsbalia i ^ s Spritzkopf®® demBerem B. & Q.Ü. the Dj? elrfclsoJ> .e ® adjacent iet _s Farner one device '^ means clerea the Sprcitskopf and the turntable can be gadreht gleiohaeitig "} and elae device" that serves sjuzuführen as "a stream of cleaning fluid to the spray head that they duroh the spray head is directed at various angles onto oil objects »

The invention and advantageous details of the invention are in the following on the basis of schematic drawings on a Execution example explained in more detail «

. 1 is a perspective! partially broken away drawn Representation of a cleaning machine according to the invention for industrial purposes «.

Pig. 1A is similar to FIG. 1, but shows the machine closed State*

Pig. 2 shows the turning part of the machine and associated with it ! Pelle in the plan.

Pig. 3 is a partially broken-open representation? the part shown in Fig.; 2? » in a side view shows.

. 4 is a side view of a rotatable fuel head of FIG Machine according to Fig. 1.

Figure 5 is an enlarged fragmentary section taken along line 5-5 in fl. 4 through one arm of the rotating spray head *

Fig. 6 is an exploded perspective view of the middle part of a also shown in FIGS. 1 and 4 Spray head ,,

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Pig. 7 shows the zuaarsiciengeoauton spray head with the parts according to Pig * 6 in a vertical section *

which are caused to t / ie aohoa mentioned, the invention provides for the cleaning of laboratory equipment and components for industrial purposes, a novel .A ₉ geiaäß which the articles in question using beams of a washing liquid cleaned *, to all parts of the au-cleaning items is aufzutraffen in a aolchen way _t that each point on the objects at different angles made by the Flüsaigkeitsströmen "According to the invention, the rotated articles to be cleaned to a specific axis, and at the same time a plurality of streams of cleaning liquid are directed to the calibration rotating objects j while the liquid streams move essentially parallel to a plane which runs essentially parallel to the axis "about which the objects are rotated", and it has been shown that when using this method, all outer surfaces of the objects to be cleaned are directly removed from the stream men of the cleaning fluid are taken, and that a stream or several streams hit each part of the surfaces to be cleaned at various angles "

It has also proven to be useful * the speed of the the rotary table carrying the objects to the speed of rotation of the liquid flows eo to adjust that -during a certain phase of the rotational movement of a certain 'Good salvation of an object, the ray hitting that part follows the movement of the part in question for a short period of time. If one takes into account the fact that the on one The object hitting a small area in the immediate area The area around the central axis of the jet cleans, so causes the aforementioned coordination of the rotational movement of the objects the movement of the rays that each part of an object to be cleaned during a certain period of time of the cleaning effect is exposed, and that in this case the binocular knowledge. kel des atray is constantly changing «

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'.Si "important ο .werkmal the erfindungsgeiaäßen device" to Hainig'iü of Ivegenständen using the srfindungsgeisaSen Yerfahrsna stand by it. ,, that dia device is designed _eo? that it makes it possible to automatically see the objects to be cleaned, to rinse them off with fresh liquid and then remove the remaining liquid with the help of steam! The objects to be cleaned can be inserted a movable frames of special design in the device by means ,, or can be the objects directly on the rotary table arrange "Sin complete working cycle of the apparatus ueifaßt three separate Arbeit3schritte to" pockets and cleaning or, aura rinsing with fresh liquid baw, by removing the remaining liquid with the help of steam "during each work step the turntable is auaanutien with the closed. objects to be cleaned are rotated around an essentially vertical axis at a predetermined speed. This rotary movement causes the various surfaces of the ß-objects to be cleaned to be exposed to a cleaning fluid, for example. a liquid b55w ". be exposed to pressurized steam under a variety of angles of incidence "While one of the three elaboration Tashkent rides elneß .. complete cleaning process is not only the" .inkel *. under which the washing liquid to the objects is incident varies characterized in that the rotary table rotates around a vertical axis, but the angle of the Auftraffens the cleaning liquid is additionally characterized varies _p that the washing liquid is discharged from the spray heads j Aich each übene in a vertical and in Rotate near the revolving turntable. The liquid streams discharged from the nozzles of the spray heads are generally discharged in the direction of the zone in which the objects to be cleaned are located. The cumulative effect of the rotation of the objects and the rotation of the spray heads results in an almost continuous change in the angle at which the cleaning liquid hits the various surfaces of the objects _s the be taken to be cleaned Gegenatände from the cleaning liquid and the gereinigtön devices are free from bacteria, "the

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The change in the angle of incidence described also ensures that ausainaengebaekeiieB bsvy. hard become material is removed from the objects ,, since the cleaning liquid is conducted under a variety of angles to the objects * There is also guarantee tHe any cracks, gaps and agencies "could at which accumulate verifiable Bückstände _s bacteria and the like, properly cleaned will"

According to Pig. 1 are the main parts of the cleaning device enclosed in a coherent housing and frame construction 10 which has an outlet opening 11 on its upper wall for the discharge of vapors _? to which a suction device comprising a fan can be connected «

According to Fig. 1, the housing »and Geetell structure 10 is with their lower part is arranged in a pit 13, to which a sump 12 connects become "that they 2" B. forms part of a manufacturing plant; 1A shows the installation of the device as an example the bottom and the use of a to open the housing © leading ramp · According to Pig, 1 and 1A is the housing and Frame construction 10 provided with a door 14 so that the to cleaning items via a loading opening 15 in a cleaning chamber 16 can be introduced

The objects to be cleaned are placed in a mobile frame

17 inserted, öso specially designed so that it is in connection can be operated with a turntable 18 »According to FIG. 1 a loading platform "19 is provided that supports the turntable

18 makes accessible, so that the drivable frame 17 can be easily inserted into the chamber 16. The loading platform

19 comprises several ropes, namely a bridge 20 »which bridges the gap between a wall of the pit 13 and the housing 10, furthermore a container cover 21 which forms the adjoining section of the loading platform, and a guide surface 22 which extends to the lower edge of the Loading opening 15 connects and forms the last part of the platform 19 "The inner fiand of the guide surface 22 is shaped to match the outline" shape of the turntable 18 and arranged so that only a small distance between the guide surface 22

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and the turntable 18 is present * The filled mobile Gestall 17 thus camouflage across the platform 19 on the Turntable 18 moved to? «* It is also possible s the device without using the moving frame. 17 to use? in this pail it is only required, the. Arrange items directly on the turntable.

In the lower part of the housing and frame construction 10 is a. Container 23 is provided for a cleaning solution or some other liquid, in which hot snakes are arranged that can be immersed in the liquid and, for example, »with a not shown small burner unit are connected, s.B. a burner unit of the legally protected Designation Eclipse available design * Alternatively, the cleaning solution can be preheated at another point and the Container according to FIG. 1A supplied via a container filling connection 62 «The container 23 can be opened with the help of a pipe 24 and a drain valve 26 are emptied, and also an overflow pipe 25 is provided that beyond the valve 26 is connected to the drain line «

The cleaning solution is sucked in from the container 23 with the aid of a pump 27 and fed under pressure via pipes 28 to a rotatable spray head 29. Details of the rotatable spray head 21 are also shown in Pig. 1, 4, _S 6 and 7 * The spray head comprises a rotatable distribution box 30 having four side walls, and in each of these side wall "is one spray« tube-incorporated 51 _9, provided with several spray nozzles 32 made of brass 1st; all spray pipes «31 lie in a vertical plane. Thus, the rotatable spray head 29 comprises a rotatable distribution box 30, four spray pipes 31 and the associated nozzles 32 made of brass.In the cleaning device shown, two such rotatable spray heads are provided, which both rotate in a vertical plane «That the pressurized cleaning solution is fed to the nozzles 32. The cleaning solution is dispensed from the nozzles 32 in a direction which is generally parallel to the axis of rotation of the spray head »with the solution in the direction of the

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movable pushbutton 17 is released * However, the outlets are arranged in different nozzle 30, so that at each nozzle in the relevant vertical space an iteaktionskraftkoonente meets ₅ and these realction forces. which are caused by all the nozzles, have the overall effect that a torque acting clockwise according to 3? ig * 5 is generated »

Fig. 6 shows further details of the ropes of the rotatable spray head 29. The distribution box 30 is provided with a front opening 33 and a rear opening 33 * and these openings take a hollow shaft 34 which is open at both ends and is provided with an externally threaded hollow shaft 34 on". Two bearing bushings 35 and 35 'are built into the two openings 33 of the distribution box 30 _f . which cooperate with the ends of the hollow shaft 34. The threaded portion of the axle 34 protrudes through the rear bearing bush 35 and is screwed into a pipe bend, which in turn is connected to a feed pipe 28. The hollow socket 34 is provided with openings distributed over its circumference so that the cleaning solution supplied via the pipeline 28 can flow into the distribution box 30 and from there to the spray pipes 31, according to Pig. 6 and 7, a plug part 36 is built into the free linden tree of the hollow shaft 34 and connected to the inner edge of the shaft by means of brazing Screw 38 is provided which protrudes through the holding plate 37 and is screwed into the plug part 36. The front end of the hollow shaft 34, in conjunction with the plug part 36 and the screw 38, holds the junction box 30 in its position so that the junction box can rotate freely on the hollow axis, but cannot move relative to the axis. Fig. 7 shows the assembled parts-flee spray head in a vertical plane that also shows the flow path of the cleaning solution *

Fresh water or a flushing solution or other liquid. A heating device (not shown) makes this possible. one in Pig. 1A supplied inlet 39 to which a

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40 anschließtj ait the inlet valve is a purge line 41 is connected _s which is provided with flushing nozzles 42 ,, Bieee nozzle serve as Au, chasing conduct the Spülfltissigkeit the Gegenotände au _Ρ located in the movable frame 17 to your revolving turntable 18 are "According to Pig . 2 is to dor underside d © ö turntable 18 at the center of a sprocket 44 attached _t äao with a roller chain 43 cooperates _t that connects the sprocket 44 with a small sprocket 45, DA® in turn by sin Scineokenraduntersetzungs ^ etriebe 46 is driven. The reduction gear 46 is according to Pig. connected to a rotary drive motor 47 by a V-belt 49. connected © Fluid coupling 48 ensures smooth power transmission * Furthermore, a sprocket 50 is provided because it works with the roller chain 43 to keep the chain taut. A chain guide 51 surrounds the roller chain 43, which extends through an opening in a wall of the housing 10 extends. According to Fig. 1, the V-belt 49 is enclosed in a protective housing 52 for safety reasons *

The turntable 19 is supported by swivel rollers 57 _s which are rotatably mounted in brackets 58 _B which in turn are connected by means of screws to a support frame 53 for the turntable. The pivoting or supporting rollers 57 arranged in vertical planes take up the weight of the turntable 18. The Bragröhraen 53 for the turntable also carries lateral supporting rollers 54, which are mounted in blocks 55 _s soft turn by screws to the supporting frame 53 are connected. The lateral guide rollers 54 act on the whole similar to a roller bearing ₉ ao that they can absorb all horizontal forces that are applied to the turntable by the roller chain 43.

The turntable 18 carries according to FIG. 3 on its outer edge an outwardly projecting flange 56 'with its underside the bearing rollers 57 supporting the weight of the turntable cooperate? the vertical outer palm or side of the hand. -teawand of the turntable works with the lateral guide rollers 54 together *

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When the cleaning device is to be used, the movable frame kl loaded with the objects to be cleaned is moved over the loading platform 19 onto the turntable 18. The door 14 is closed and locked because calibration does not allow the device to operate when the door is open. The device is automatically switched off if the operator should inadvertently open the door while the device is in operation. The operator sets on a circuit board 60, the automatic timer for a complete working cycle a, daa a washing or Eeinigungsvorgang, a rinsing operation, and a treatment of the articles with steam u; afaßt _s and then depresses a start button to the automatic sequence a ' Initiate cleaning programs, after which the operator can turn to other work.

The duration of the individual work steps for cleaning the objects, for rinsing with fresh water and for treatment with steam it is regulated with the help of electric timers, which can be set beforehand in such a way * that optimal Jirgebnisee be achieved. ISs have been shown to work, on average, for each work cut can be scheduled for a duration of 2 to 3 minutes, and that this ensures perfect cleaning of the Objects is achieved.

When the operator presses the start button on the control panel 60, the pump 27 is turned on and the implementation a cleaning program is initiated. The pressure of the liquid conveyed by the pump 27 causes the large spray heads 29 are rotated * The rotatable spray heads are arranged in the immediate vicinity of the turntable 18, and its axis of rotation runs at right angles to the axis of rotation dea Turntables.

The long spray pipes 31; each spray head 29 make it possible with the help of the nozzles 32, which a hot, pressurized solution of a detergent towards the mobile Frame 17 to be injected.

Simultaneously with the depression of the start button, the rotary drive motor 47 is turned on, so that the turntable

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18 with the help of the arrangement described iß rotation will. At a discharge forra intended for industrial purposes the device has a speed of the turntable » clockwise at 6 rpm. While the execution of a cleaning program turn the Spray heads 29 also in the Uhraeigerainne, because βα was determined that an optimal cleaning effect is achieved when the turntable 18 and the spray heads 29 in the same, turn without sighting.

The speed of rotation of the spray heads can be controlled by placing the nozzles 32 at a suitable angle opposite to the plane of rotation of the spray pipes 51 selects · For others Embodiments of the invention it may be appropriate » rotatable nozzles do not take advantage of the reaction forces caused by the escaping liquid streams, but rather 8.B. to be driven with the help of a motor. At one for industrial For the purposes of a specific embodiment, the rotary shaft 18 operated at a speed of 6 rpm while the sprits * heads were driven at a speed of 15 rpm

It is possible to work the spray heads 29 at a higher or lower speed! to leave, but here is au bear in mind that when the drive utilizes the reaction forces, each time the angular position of the nozzles 52 the amount of cleaning fluid decreases * the in the form of Beams reached directly to the most inner parts of the movable frame 17. A greater inclination of the Nozzles opposite the spray pipes also leads to a reduction the cleaning effect achieved by the combination of the rotary movement of the turntable 18 and the rotation of the spray heads 29 is achieved.

After the cleaning process has ended, the pump 27 for the cleaning liquid is automatically switched off by one of the timers 61 built into the control panel 60, ' and the rotating spray heads 29 are brought to a standstill This cleaning process is followed automatically by rinsing the object © with fresh, hot water, as underneath Pressure is supplied to the flushing & sen 42 via the pipes 41

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is to ensure a thorough unwinding of the items in the Frame 1? to operate while the turntable 18 continues to rotate will.

The completion of the washing process is automatically performed a similar process occurs in which steam is applied to the items to be cleaned Objects being blown. However, this step is not absolutely necessary, i.e. it can be used in certain Use cases are omitted.

After treating the objects with steam, the turntable 18 is brought to a standstill and the door 14 can now be opened and the objects removed from the frame 17. a

An embodiment of the invention has been described above, but it should be noted that a wide variety of modifications can be made in the construction described? for example one could use the upper, / and the housing and frame construction 10 provided with further rotary fuel heads, one could use the Device for rinsing objects with fresh water Equip with rotating nozzles, and one could use different constructions of rotating cleaning and flushing nozzles. Furthermore, the directions of rotation of the turntable and the rotating spray heads could be changed.

In this connection it should be noted that the use of the rotatable spray heads results in an arrangement which, in practice, enables an approximation to be achieved of that part of the method according to the invention which consists in causing the streams or jets of the cleaning liquid to be determined Track parts of the objects during a certain part of the rotation of the frame ⁿ ". Since the rotational speeds of the injection nozzles in the plane which runs parallel to the axis around which the objects are rotated, depending, among other things, on the arrangement of the nozzles If the radial syringe pipes built into the distribution box vary, this "tracking" takes place in a different way with a jet ^{, which is emitted by a nozzle closer to the distribution box, in a Ge ^ enatanc 1} , the eliaer voa on the distributor box removed the nozzle further away.

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will give »if one compares the radial fuel pipes If the height of the objects to be cleaned gives a greater length, this effect is only to a lesser extent noticeable * In some industrial applications Purposes are significant deviations from the theoretically ideal construction outside *

Claims j

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Claims (1)

PATiSSTAHSP HÜGHE 1. Procedure for cleaning objects with the help of a Device »in which the objects are arranged on a turntable, in which the turntable is rotated together with the objects, when a cleaning liquid is jetted with the help of at least one rotatable spray head at different angles of incidence on the surfaces of the Objects guided «earth, characterized by that the turntable and the spray head rotated at the same time be, and that the spray head is rotated in a plane which has a relatively large angle with the plane of rotation of the turntable forms 2 · Method according to claim 1, characterized in that the turntable and the spray head both « in the same direction and while maintaining a predetermined ratio between their rotational speeds be rotated so that at least one jet of cleaning fluid, which strikes a surface of a certain object is caused, the mentioned surface during a to follow a certain period of time 3. The method according to claim 1 or 2, characterized in that the plane of rotation of the spray head runs essentially at right angles to the plane of rotation of the turntable 4. The method according to any one of claims 1 to 3, characterized characterized in that the Drehtisoh with a speed of about 6 rpm and the spray head is rotated at a speed of about 15 rpm * 5. The method according to any one of claims 1 to 4 * thereby characterized in that jets of a rinsing liquid after fier treatment, the objects with the cleaning fluid are passed onto the Greg-eaatändö so that the turning 909820/0928 BAD ORK3JNAV movement of the turntable is interrupted, and that the objects be removed from the turntable, » 6. The method according to any one of claims 1 to 5, characterized in that the through the spray head emitted jets of the cleaning fluid generate a reactive force which one component in a plane of rotation de », Spritzkopfeβ comprises substantially parallel direction. 7. cleaning device for performing the method according to claim 1 with a turntable for receiving the to rei- . lowering objects and at least one rotatable spray head, ^ by means of its jets of a cleaning liquid on the Objects can be directed, characterized in that the spray head (29) is rotatable about an axis is stored «the one with the axis of rotation of the turntable (18) forms a large angle - that part of the plane in which the The spray head rotates, the edge of the rotating die is adjacent * that devices are provided? by means of which the spray head and the. Turntable can be rotated at the same time, and that one Device provided iatg. by means of which a cleaning liquid can be fed to the spray head in such a way that the Jets of the cleaning liquid emitted by the spray head at different angles of incidence on the objects hit? 8. Cleaning device according to claim 7, daduroh g e indicates that two spray heads are provided which are arranged so that they are in each other substantially parallel planes on opposite sides of the turntable. .9. Cleaning device according to claim 7 or 8 _f . characterized in that each spray head (29) comprises a rotatable distribution box (30), furthermore several - preferably four - spray tubes (31) which extend radially outward from the distribution box, as well as several nozzles (52), each spray tube connected to multiple nozzles * 90 9 820/0928 8AD ORIGINAL 10. Cleaning device according to claim 9 _9, characterized in that the outlets of the nozzles are arranged so that the discharged liquid creates a heat force; generated v? ird _e comprising a force acting in a direction perpendicular JSbene component, and in that these components of the reaction forces generated by all the dunes a whole is sufficient to apply a torque to produce "through which the spray head is set in rotation · 11 "Cleaning device according to one of claims 7 to 10 *, characterized in that devices are provided, by means of which the speed of rotation of the spray head ± m ratio to the speed of rotation of the turntable can be regulated so that at least one jet of the cleaning fluid on a surface determines at least one Segenatandes can follow for a certain period of time. 12. Heating device according to one of claims 7 to 11g characterized in that the turntable and the Spritzkopfβ are arranged in a housing with a device (14) making the interior of the housing accessible is provided, which during operation of the device normally kept closed * 909820/0928 BATH ORIGINAL