EP0509052B1 - Dispositif de nettoyage d'appareil mecaniques, de petites pieces et/ou d'unites de commutation electroniques - Google Patents

Dispositif de nettoyage d'appareil mecaniques, de petites pieces et/ou d'unites de commutation electroniques Download PDF

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Publication number
EP0509052B1
EP0509052B1 EP91903115A EP91903115A EP0509052B1 EP 0509052 B1 EP0509052 B1 EP 0509052B1 EP 91903115 A EP91903115 A EP 91903115A EP 91903115 A EP91903115 A EP 91903115A EP 0509052 B1 EP0509052 B1 EP 0509052B1
Authority
EP
European Patent Office
Prior art keywords
cleaning
turntable
substructure
arrangement
cleaning chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91903115A
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German (de)
English (en)
Other versions
EP0509052A1 (fr
Inventor
Rudolf Schmitz
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0509052A1 publication Critical patent/EP0509052A1/fr
Application granted granted Critical
Publication of EP0509052B1 publication Critical patent/EP0509052B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays

Definitions

  • the invention relates to a device according to the preamble of patent claim 1.
  • both containers are known in which the machine parts to be cleaned are lowered into a washing liquid, as well as cleaning devices such as that of DE-GM 1 962 757, in which washing liquid is removed from a reservoir by means of a pump and sprayed onto the parts to be cleaned and then, collected by a drain, is fed back to the reservoir via filter devices.
  • cleaning devices such as that of DE-GM 1 962 757, in which washing liquid is removed from a reservoir by means of a pump and sprayed onto the parts to be cleaned and then, collected by a drain, is fed back to the reservoir via filter devices.
  • the cleaning effect is determined only by dissolving and softening them and is therefore inadequate, regeneration of the washing liquid is difficult, and due to the extensive filling of the washing chamber with a cleaning liquid there is an undesirably high weight.
  • the device according to DE-GM 1 962 757 has moderate dimensions and a lower weight, the open spraying of the cleaning liquid limits the intensity of the cleaning jets, and even when the liquid is sprayed with only low energy, both result an undesirable odor nuisance as well as a large amount of pollution of the surrounding area by ricocheting drops of liquid.
  • the often proposed ultrasonic cleaning results in high mechanical stresses for sensitive parts, which they are often not up to.
  • electronic components and type wheels of printing units react to ultrasonic cleaning processes due to hairline cracks and early failure.
  • the large amount of washing liquid required quickly becomes dirty and causes considerable procurement costs as well as difficulties in disposal.
  • DE-A-38 02 486, which defines the generic type, discloses a device for cleaning mechanical and / or electrical devices or devices by means of cleaning liquids, which, for example, dissolves greases and resins, but does not attack plastics and rubber.
  • This device consists of a cleaning chamber, which is vented by means of a blower with its suction opening upstream, has a closable loading opening and a drainage underpinning cleaning liquid for its regeneration, in which the cleaning chamber is arranged above a cuboid, closed substructure, and in which the delivery nozzle of the blower is connected to the base areas of the substructure by means of a line, while an aeration line leading into the cleaning chamber and a ventilation line open into the upper areas thereof.
  • This device is characterized in that the blower conveys the extracted air into a compensation chamber arranged in the substructure, to which a collecting space is connected via impingement filters formed from wires, which has an outlet for the blown air to be returned and with one provided for this by a Shield plate is delimited hood, which has the connection for the ventilation line closed with an activated carbon filter.
  • This compact arrangement can be made portable and it does not require any permanently installed exhaust air ducts.
  • the present invention is accordingly based on the object to provide an arrangement of the type referred to, in which the operating personnel is relieved and at the same time the respective location can be selected without problems by improved regeneration of the cleaning agent in connection with a restriction on the towing thereof.
  • the present invention thus relates to a device for cleaning mechanical and / or electrical devices or devices by means of cleaning liquids, with a baffle plate, which is vented by means of a blower with its suction opening and has a closable loading opening, and a drainage underpinning cleaning liquid for its regeneration, in which the cleaning chamber is arranged above a cuboid, closed substructure, and in which the delivery nozzle of the blower is connected to the bottom region of the substructure by means of a line, the blower conveying the extracted air into a compensation chamber arranged in the substructure, to which the air flows out a collection chamber, in which a ventilation duct leading into the cleaning chamber and a vent are connected to a number of stacked impingement filters formed from wire mesh filter mats outlet line, and with a rotary plate arranged in the cleaning chamber and receiving the items to be cleaned, characterized, that the cleaning chamber (3) has at least one riser pipe (55) which is supplied with cleaning liquid via a pump (58) and is provided with spray nozzles (5
  • the separation of the cleaning agent contained in the exhaust air is also improved by the structure of the downstream filter.
  • a base 2 On permanently mounted or rotatable or swiveling and advantageously also lockable castors 1, a base 2 is provided which carries a cleaning chamber 3, the loading opening of which is closed by a door 4, which can be folded up by means of hinges 5 and placed on rubber buffer 6 is.
  • the cover plate of the cleaning chamber is equipped with a viewing window 7, for example made of acrylic glass, just as the door 4 is closed by a front window 8, which has an opening 9 for inserting and engaging the cleaning guns.
  • a perforated turntable 12 is supported on an axle pin 10 in the cleaning chamber, supported by a thrust bearing 11, for setting up the items to be cleaned, and can be locked by means of a locking device (not shown). This can brake the turntable or its hub by friction or engage in locking holes in the same.
  • the cleaning chamber is closed by an impact filter 13, which is removable and consists of at least two packages of slotted disks connected to one another.
  • a manifold 14 is used to extract exhaust air and, via the floor 15 of the cleaning chamber 3, which is slightly sloping towards the door 4, can be sprayed on and, if necessary, dripping from the impact filter 13, to run liquid into a filter housing 16, which is also designed as a slotted disc Filter plate 17 is equipped, but can also be designed as a narrow line filter, for example. With a mesh size of 1.20 mm.
  • the bottom 18 of the filter housing rises slightly to the side and has two openings 19 in the center.
  • Linear guides 20 are provided on the underside of the filter housing 16, in which a filter attachment 21 is provided, which can be pulled out by means of a button, which is expediently shown in the illustrated by means of a not shown locking device Operating position is fixed.
  • the filter attachment 21 has, in each case below the openings 19, two support cones 22, in each of which paper filters 23 are inserted; For reasons of problem-free and inexpensive procurement, customary coffee filters can be used here, which ensure excellent regeneration of the cleaning liquid and in double parallel Arrangement can also grow stronger liquid flows.
  • a normally open drain valve 24 is arranged in the bottom of the filter attachment 21, via which the regenerated cleaning liquid is returned by means of the hose 25 into a container 26 applied to the standing surface 27.
  • the spray gun (not shown) used for cleaning can be operated from the same container.
  • a collecting space 34 in which the air quantities passing through the filter mats 33 with a relatively low flow velocity and over a large area are collected and further cleaned by droplets dropping out.
  • the liquid residues that precipitate here also fall down into the filter mats 33 and with the cleaning liquid collected by them into the sump of the compensation chamber 31, from which the liquid present there can be withdrawn periodically, for example weekly or monthly, via a drain valve 35.
  • a small rotor pump similar to that of a windshield washer system of a motor vehicle, to also periodically pump the liquid present over the Pump floor 15 so that this portion of the cleaning liquid can also be cleaned in the filters 17 and 23, the container 26 can be supplied.
  • an exhaust space 36 is partitioned off by means of a shield plate 37.
  • the air which has been calmed even further here and cleaned by precipitation, can escape via the overpressure in the collecting space 34 via the elbow 38, the exhaust hose 40 connected to its flange 39 and an activated carbon filter 41.
  • the exhaust air in front of the activated carbon filter is cleaned even more extensively, so that its efficiency increases as well as its service life. Due to the gap formed in front of the screen 37 and the flow resistance of the activated carbon filter, the air flow passing through it remains low.
  • the major portion of the air sucked in by the blower 30 is returned via two elbows 43, two return hoses 44 and two guide sleeves 45 into the cleaning chamber and, by means of return nozzles 46 which are rotatable and height-adjustable in the guide sleeves 45, is expediently directed at the pre-cleaned workpiece at least after cleaning has been completed , so that a quick drying of the same is achieved.
  • Both the compressed air and the spray gun can be supplied with compressed air via a predefined compressed air network, by storage or by a compressor, which can be set up remotely from the device, if necessary.
  • the connection is made via a fitting, which, however, is expediently not arranged on the rear, as shown, but on a flank of the arrangement is, and expediently that edge which lies opposite the maintenance flap 47.
  • This maintenance flap can be pivoted, but it is also possible to fasten it with screws.
  • it can optionally be connected to the frame 32 if it is held so as to be extendable via a linear guide.
  • the compressed air fitting is designed as a water separator 48, which is equipped with a pressure reducing valve 49 and a shut-off valve 50 and expediently also has a pressure gauge (not shown) or is connected to it.
  • the water separator 48 is provided with two connections 51 and 52 in order to be able to connect both a compressed air gun and a spray gun.
  • the separator housing 53 is expediently provided with a filter. Paper filters can also be used here; Cotton filters, for example, have proven useful, e.g. can be introduced in the form of a tampon and bring about the necessary cleaning of the compressed air.
  • the connecting cord for the electrical connection can be provided at the free end with a conventional Schuko plug and connected in the connection box 54, which can also be equipped with a power switch, if the latter is not provided for better accessibility on the sides or the front of the arrangement.
  • riser tubes 55 are provided on both sides of the turntable in the cleaning chamber, which end in a spray nozzle 56 and which are preferably provided in the region of a surface line with further spray nozzles directed towards the turntable.
  • These spray nozzles can be inserted, pressed in or screwed in, but they can also be used as directed bores be executed.
  • a slowly rotating drive device 57 which can consist of an electric gear motor arranged behind the cleaning chamber, a connecting shaft and an angular gear, it is achieved that practically all surface areas applied to the turntable can also be reached by the cleaning agent jets are.
  • the riser pipes 55 are fed by a water pump 58 and a valve 59 arranged downstream thereof, the suction connection of the water pump 58 being guided into one of the containers 26.
  • the automatic mode of operation can be set on the switch box 60, which has a plurality of setting elements, by means of which the time of the spraying, ie the effectiveness of the water pump 58, and that of the drying via the return nozzles 46 can be set, and by means of which the speed of the drive device is also expedient 57 of the turntable 12 is determined.
  • a limit switch 61 is also advantageously provided, which detects the opening of the door 4 of the cleaning chamber 3, for example via an angle lever connected to the hinge, and at least prevents spraying operations after a short opening stroke and also expediently interrupts the air circulation in order to prevent the release of cleaning agents Prevent air from the open cleaning chamber. It was also considered expedient to design one of the rollers 62 as a switchable brake roller in order to achieve a defined state of the arrangement. the work is facilitated by a lamp 63 provided above the cleaning chamber 3 and illuminating it through the viewing window 7. In a tube connected to the rear of the cleaning chamber, a telescopic boom 64 is arranged that can be pulled out and adjusted in height, which allows the desired height of the activated carbon filter to be set 41 set.
  • the work is further facilitated and inadvertent falling of the cleaning goods is prevented if the turntable 12 is equipped with a rim 65 surrounding it.
  • the grip and thus the stability of the items to be cleaned is further improved if the turntable 12 is designed as a wire basket.
  • the objects to be cleaned are applied to the turntable 12 which is perforated or made of wire mesh; if necessary, this can be done, for example in the case of printed circuit boards, by means of special holding devices adapted to them.
  • the door is pivoted back into the working position shown, and a compressed air gun 67 can first be inserted through the opening 9 of relatively small cross-section in order to blow loose dirt and dirt off the objects to be cleaned.
  • the water pump 58 is then switched on in order to effect a first cleaning of the items to be cleaned.
  • the required soaking is achieved with a certain service life, and then the items to be cleaned are sprayed in again by means of the spray liquid, the detached contamination components, such as partially resinified oils, being sprayed off after soaking.
  • the turntable 12 with the items to be cleaned is rotated continuously, so that the jets of the spray nozzles 56 reach them from all sides.
  • a final overmolding ensures the desired cleanliness.
  • Superficial drying can first be achieved by using the compressed air gun 67 again, by means of which still adhering parts and dripping cleaning liquid can be blown off. An even longer stay in the cleaning chamber with the blower working allows complete drying, although even with electronic devices the low conductivity of the cleaning fluid used does not necessarily require complete drying.
  • the opening 9 is designed such that, on the one hand, a practically undisturbed working with the compressed air and the spray gun is possible, but on the other hand not too much external air enters .
  • the low vacuum that occurs in the cleaning chamber 3 is used to prevent any escape of droplets or vapors of the cleaning agent to the outside: Through the opening 9, a small air flow will always flow into the cleaning chamber and thus the air already in it in the direction press back on the impact filter 13 and the manifold 14.
  • This inflowing air must be separated again when the air circuit is formed: the amount of air separated is determined here by the pressure in the collecting space 34 in connection with the resistance given by the activated carbon filter 41.
  • This air to be discharged is initially covered by the shield plate 37 against the actual collecting space 34, so that 40 further separation processes can occur in the exhaust space and in the exhaust hose 38 connected to the elbow 38.
  • the final cleaning of the air to be separated from the circuit is effected by the activated carbon filter 41. In many cases, however, adequate exhaust air purification is achieved when the activated carbon filter 41 is connected directly to the manifold 38.
  • the air exiting into the installation space is so largely cleaned that it can neither appear to be harmful to health nor be perceptible at all, for example by the sense of smell.
  • Due to the extensive regeneration it is no longer necessary to use two different liquids, namely new and, to initiate cleaning and for softening, already used but regenerated liquid.
  • the number of containers required can therefore be reduced to one, so that this also increases the mobility of the arrangement.
  • the extensive regeneration also ensures an extremely long lifespan of the cleaning liquid introduced into the circuit, which remains practically usable for a very long time and therefore hardly causes disposal problems.
  • the halogen-free cleaning liquid intended for this arrangement and containing neither chlorinated nor fluorinated hydrocarbons both through their composition as well as through the minimal amounts of the discharged liquid the disposal problems are reduced to a minimum.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)

Abstract

Un dispositif de nettoyage d'appareils ou de dispositifs mécaniques et/ou électriques au moyen de liquides de nettoyage comprend une chambre de nettoyage pourvue d'un orifice d'introduction fermable et aérée au moyen d'un ventilateur ayant une tôle de chicane agencée en amont de son ouverture d'aspiration. Un écoulement agencé sous la chambre de nettoyage recueille le liquide de nettoyage afin de le régénérer. La chambre de nettoyage est agencée sur une structure quadrangulaire fermée de support, la tubulure de refoulement du ventilateur étant reliée par un conduit au fond de la structure de support, alors qu'un conduit d'amenée d'air à la chambre de nettoyage et un conduit d'aération s'ouvrent dans les régions supérieures de la structure de support. Un plateau tournant agencé dans la chambre de nettoyage reçoit les produits à nettoyer. La chambre de nettoyage (3) comprend au moins un tuyau ascendant (55) alimenté en liquide de nettoyage par une pompe (58) et pourvu de buses d'injection (56) orientées dans la direction du plateau tournant (12).

Claims (5)

  1. Dispositif pour le nettoyage d'appareils ou dispositifs mécaniques et/ou électriques au moyen de liquides de nettoyage avec une chambre de nettoyage comportant une porte d'alimentation pouvant être fermée, désaérée par un ventilateur avec une plaque d'impact
       disposée à son ouverture d'aspiration et avec un écoulement recueillant ce liquide de nettoyage pour sa régénération ; dispositif dans lequel la chambre de nettoyage est placée sur une infrastructure de forme carrée, fermée et dans lequel l'ajutage de refoulement du ventilateur est connecté au moyen d'une conduite à la zone de fond de l'infrastructure, tandis que le ventilateur envoie l'air aspiré dans une chambre d'équilibrage placée dans l'infrastructure ; à cette dernière chambre se raccorde un espace collecteur par l'intermédiaire d'un filtre à impact formé d'un certain nombre de nattes de filtrage produites en fil métallique et empilées l'une sur l'autre ; dans cet espace collecteur débouchent une conduite d'aération conduisant dans la chambre de nettoyage ainsi qu'une conduite de désaération et le dispositif comprend un plateau tournant placé dans la chambre de nettoyage et recevant le matériau de nettoyage, caractérisé en ce que la chambre de nettoyage (3) comporte au moins un tube montant (55) alimenté par une pompe (58) avec du liquide de nettoyage, tube qui est muni d'injecteurs (56) dirigés vers le plateau tournant (12), et en ce que le cadre (32) comprend 5 nattes de filtrage produites en un fil métallique (33) d'épaisseur 0,3 à 0,6 mm et ayant une largeur de maille allant de 6 à 22 mm.
  2. Dispositif selon la revendication 1, caractérisé en ce que le plateau tournant (12) est muni d'un rebord (65) l'entourant.
  3. Dispositif selon les revendications 1 ou 2, caractérisé en ce que le plateau tournant (12) est réalisé comme une corbeille en fil métallique.
  4. Dispositif selon une des revendications 1 à 3, caractérisé en ce qu'est associé au plateau tournant (12) un dispositif moteur (57) tournant en continu.
  5. Dispositif selon une des revendications 1 à 4, caractérisé par un boîtier de commande (60), dont les éléments de commande permettent de régler la durée de mise en circuit de la pompe (58), la durée de fonctionnement du ventilateur (30) et avantageusement aussi la durée de fonctionnement ainsi que la vitesse de rotation du dispositif moteur (57).
EP91903115A 1990-01-03 1990-12-21 Dispositif de nettoyage d'appareil mecaniques, de petites pieces et/ou d'unites de commutation electroniques Expired - Lifetime EP0509052B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9000018U DE9000018U1 (de) 1990-01-03 1990-01-03 Vorrichtung zum Reinigen mechanischer Geräte, Kleinteile und/oder elektronischer Schalteinheiten
DE9000018U 1990-01-03
PCT/EP1990/002287 WO1991009689A1 (fr) 1990-01-03 1990-12-21 Dispositif de nettoyage d'appareil mecaniques, de petites pieces et/ou d'unites de commutation electroniques

Publications (2)

Publication Number Publication Date
EP0509052A1 EP0509052A1 (fr) 1992-10-21
EP0509052B1 true EP0509052B1 (fr) 1995-06-07

Family

ID=6849785

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91903115A Expired - Lifetime EP0509052B1 (fr) 1990-01-03 1990-12-21 Dispositif de nettoyage d'appareil mecaniques, de petites pieces et/ou d'unites de commutation electroniques

Country Status (5)

Country Link
EP (1) EP0509052B1 (fr)
DE (2) DE9000018U1 (fr)
DK (1) DK0509052T3 (fr)
ES (1) ES2072599T3 (fr)
WO (1) WO1991009689A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009005350A1 (de) * 2009-01-16 2010-07-22 Robert Sporer Waschgerät

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634622C2 (de) * 1986-10-10 1996-02-22 Frohn Walter Verfahren zur Reinigung von Gegenständen unter Verwendung eines flüssigen Reinigungsmittels und Vorrichtung zur Durchführung des Verfahrens
DE3802486A1 (de) * 1987-01-29 1988-08-11 Rudolf Schmitz Vorrichtung zum reinigen mechanischer geraete, kleinteile und/oder elektronischer schalteinheiten

Also Published As

Publication number Publication date
DE9000018U1 (de) 1990-02-22
EP0509052A1 (fr) 1992-10-21
DE59009218D1 (de) 1995-07-13
WO1991009689A1 (fr) 1991-07-11
DK0509052T3 (da) 1995-10-30
ES2072599T3 (es) 1995-07-16

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