EP1655082B1 - Pocédé et appareil de nettoyage de pièces industrielles - Google Patents

Pocédé et appareil de nettoyage de pièces industrielles Download PDF

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Publication number
EP1655082B1
EP1655082B1 EP05450179A EP05450179A EP1655082B1 EP 1655082 B1 EP1655082 B1 EP 1655082B1 EP 05450179 A EP05450179 A EP 05450179A EP 05450179 A EP05450179 A EP 05450179A EP 1655082 B1 EP1655082 B1 EP 1655082B1
Authority
EP
European Patent Office
Prior art keywords
nozzles
workpiece
cleaning
group
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.)
Active
Application number
EP05450179A
Other languages
German (de)
English (en)
Other versions
EP1655082A1 (fr
Inventor
Hubert Ing. Knoth
Rudolf Knoth-Bambule
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.)
Knoth Automation GmbH
Original Assignee
Knoth Automation GmbH
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
Priority claimed from AT0079504U external-priority patent/AT8046U1/de
Application filed by Knoth Automation GmbH filed Critical Knoth Automation GmbH
Priority to DE202005020926U priority Critical patent/DE202005020926U1/de
Priority to PL05450179T priority patent/PL1655082T3/pl
Publication of EP1655082A1 publication Critical patent/EP1655082A1/fr
Application granted granted Critical
Publication of EP1655082B1 publication Critical patent/EP1655082B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities

Definitions

  • the invention relates to a method for cleaning workpieces according to the preamble of claim 1
  • a known alternative to manual cleaning are cleaning machines in which the components are first exposed to a liquid cleaning medium and then dried. Such cleaning machines are extremely expensive and costly and cause by the required cycle times a significant slowdown of the production process.
  • the DE 29 36 779 A shows a device for cleaning motor vehicle brakes, in which the brake to be cleaned is covered by a suction hood and is acted upon by movable nozzles with compressed air.
  • a similar device for cleaning air filters is in the US 4,808,234 A described. However, it has been found that in practice such devices are not able to provide sufficient cleaning of workpieces within a short time.
  • the DE 41 27 982 A shows a method according to the preamble of claim 1 and an apparatus according to the preamble of claim 7.
  • the shows DE 195 32 576 A a device for cleaning workpieces, in which the workpiece is rotated in a chamber and is applied to a cleaning medium which is sprayed from a plurality of nozzles.
  • Object of the present invention is to develop the method of the type described above so that even with firmly adhering and difficult to remove impurities within a short time sufficient cleaning is achieved.
  • the noise emissions should be minimized and the risk of injury as well as the pollution of the indoor air should be minimized.
  • the device should be simple and inexpensive to produce and have a small footprint.
  • Another object of the present invention is to provide an apparatus for carrying out such a method.
  • Another essential aspect of the present invention is that the application of the individual jets to the workpiece so that at certain points a sufficiently high energy is achieved to remove even firmly adhering impurities. It is also important that the individual beams are directed in different directions on the workpiece, on the one hand to reach concave or hard to reach area of the workpiece and on the other hand, to facilitate the detachment of firmly adhering residues.
  • the individual beams slide over the workpiece like a spatula and clean it of the adhering residues.
  • cleaning medium primarily compressed air is provided, since this is easily available and inexpensive.
  • other cleaning media such as inert gases, such as nitrogen, when issues of explosion protection or prevention of corrosion are essential.
  • the process of the invention can be used particularly favorably if the pressure of the cleaning medium is between 0.5 bar and 10 bar, preferably between 0.9 bar and 8 bar.
  • Another particularly advantageous embodiment variant of the method according to the invention provides that the workpiece is moved relative to the cleaning chamber. In this way, it is possible to reliably subject all areas of the workpiece to a cleaning and thereby reliably prevent material entrainment in the respective next processing step.
  • the workpiece is rotated inside the cleaning chamber.
  • relatively compact workpieces such as some cylinder heads or the like, it is possible in this way to cause a relative movement of the workpiece within a cleaning chamber, the dimensions of which are not substantially greater than that of the workpiece.
  • a first group of individual jets are directed in an angle against the direction of rotation a second group of individual jets in one direction in the direction of the axis of rotation and a third group of individual jets in the direction of rotation on the workpiece. It has been found that a particularly favorable cleaning effect can be achieved by such a design. In addition to this inclination, the individual rays can also at an angle to the normal plane tilted to the axis of rotation to detect less accessible areas of the workpiece.
  • a translatory movement may also be provided. It is preferably provided that a first group of individual jets are directed at an angle to the direction of movement of a second group of individual beams perpendicular to the direction of movement and a third group of individual jets at an angle in the direction of movement of the workpiece.
  • the relative movement of the type described above by a movement of the workpiece relative to the cleaning chamber or against nozzles for generating the jets done or by a movement of the cleaning chamber or the nozzle relative to the workpiece.
  • blind holes or threaded holes particularly intensely by one or more nozzles inserted into this, moved in them, may be briefly stopped and moved out again.
  • a particular simplification of the method according to the invention is achieved in that the cleaning medium flows freely out of the cleaning chamber. In this way, can be dispensed with a suction or the like.
  • the present invention relates to a device for cleaning workpieces of adhering working media and / or work residues with a cleaning chamber and means for introducing a gaseous cleaning medium.
  • the means for introducing a gaseous cleaning medium are designed as nozzles, which are arranged in at least three groups, and that the nozzles of the at least three groups are directed at different angles on the workpiece.
  • a particularly cost-effective operation of the device is achieved when the nozzles are designed as compressed air nozzles.
  • the structural design of the device according to the invention is particularly advantageous when the nozzles of a group are arranged on at least one common manifold. This design allows a simple conversion of the device when it comes to a new type of workpieces to be cleaned to be rebuilt. A further simplification of the conversion is achieved in that the nozzles are made adjustable.
  • a first preferred embodiment variant of the device according to the invention provides a device for producing a relative movement between the workpiece and the nozzles.
  • This relative movement can be rotational or translatory, as described above.
  • Various variants are possible for producing the relative movement. So on the one hand, the workpiece can be moved within the cleaning chamber. On the other hand, the workpiece may be fixedly mounted in the cleaning chamber, but the nozzles are moved over the workpiece.
  • grid structures are provided in the interior of the cleaning chamber in order to collect and dissipate fluidized spray and liquid parts.
  • the spray which is formed from the blown-off residues, precipitates on the workpiece and this contaminated again.
  • individual liquid droplets which are blown away from the workpiece, bounce off the walls of the cleaning chamber and are thrown back onto the workpiece again.
  • the occurrence of these effects can undesirably increase the required treatment time of the workpiece and reduce the cleaning performance.
  • the above-described grids are provided to which the spray adheres and forms larger drops, so that the spray no longer returns to the workpiece. Furthermore, a rebound of wegspritzenden residue is reliably prevented in this way.
  • a device for producing a relative movement between the workpiece and the nozzles which is designed as a clamping device. In this way, inaccessible point of the workpiece can be achieved by the cleaning medium.
  • the device of FIG. 1 and FIG. 2 consists of a cleaning chamber 1 with a lid 1 a, in which a workpiece 2 is mounted. Laterally of the workpiece 2, three blower strips 3a, 3b, 3c designed as distributor tubes are provided, which are provided with a multiplicity of nozzles 4.
  • the workpiece 2 is held by seats 5 rotatably disposed in the cleaning chamber 1 and driven by a motor 6 to rotate the workpiece 2 about a horizontal axis 8 in the direction of the arrow 7.
  • a first group 4a of nozzles 4 which are directed against the direction of rotation 7 on the workpiece 3, is provided on the first distributor pipes 3a.
  • a second group 4b of nozzles 4 on second distributor pipes 3b is aligned in the direction of the axis 8.
  • a third group 4 c of nozzles 4 on distribution pipes 3 c is directed at an angle in the direction of rotation 7 on the workpiece 2. In this way, recesses, holes, undercut area or the like of the workpiece 2 are reliably cleaned
  • an outflow opening 9 is provided, through which the cleaning medium can flow together with the blown-off working medium.
  • Compressed air generator 11 supply via distribution lines 12, the individual manifolds 3a, 3b, 3c.
  • compressed air networks can be used accordingly.
  • FIG. 3 the construction of a blow bar 3 is shown on an enlarged scale.
  • the blowing strip 3 consists of a box-shaped main body 10, in which a plurality of nozzles 4 is screwed.
  • the outflow direction of the nozzles 4 is adjustable in order to make an adaptation to the respective workpiece 3 easily and quickly.
  • Fig. 4 shows the blow bar of Fig. 3 in detail.
  • the main body 10 has an inner space 14, in which the compressed air is supplied.
  • a plurality of ffernippeln 15 is provided, the discharge openings 17 with axes 15a have.
  • nozzles 4 are placed, which consist of a dome-shaped holding portion 18, a pipe section 19 and a nozzle tip 20 in which a plurality of nozzle openings 21 are provided to form a multi-hole nozzle.
  • the emerging rays are indicated at 22.
  • the nozzles 4 are pivotally supported by union nuts 23 and can be adjusted in this way as needed and adapted to the particular workpiece to be cleaned.
  • FIG. 4 To simplify the illustration, only one nozzle 4 is shown in FIG. 4.
  • the screw nipple 15 are partially closed by closures, not shown, if no nozzle is required at the relevant point.
  • the axis 24a of the nozzle 4 of the first group 4a is inclined at an angle 25a of 25 ° to the axis 15a, wherein the inclination against the direction of movement of the workpiece, which is indicated by the arrow 27.
  • the axis 24b of the unillustrated nozzles 4 of the second group coincides with the axis 15a, and the axis 24c of the third group 4c is inclined at an angle 25c of 25 ° to the axis 15a, the inclination being in the direction of movement of the workpiece.
  • Fig. 5 shows a nozzle tip 20 of a nozzle 4 in detail.
  • further slot-shaped nozzle openings 21b are arranged radially between guide ribs 28.
  • Fig. 6 shows a nozzle 4 from the front, in which a plurality of nozzle openings 21c are arranged side by side.
  • Fig. 7 and Fig. 8 shows a further embodiment of a device according to the invention is shown.
  • the cleaning chamber 1 is designed in the form of a hood, which can be lowered via a lifting device 12 onto a conveyor belt 13, on which the workpiece 2 is transported. Similar to the above-described apparatus, there are provided in the cleaning chamber 1 manifolds 3a, 3b, 3c equipped with nozzles 4 oriented counter to, perpendicular and in the conveying direction. In this embodiment, the cleaning of the workpiece 2 takes place during the transport of the workpiece 2 on the conveyor belt 13, which thus causes the desired relative movement between the workpiece 2 and the nozzle 4.
  • the device according to the invention can be used in virtually all existing processing lines. It is simple in construction and uncomplicated and requires a proper adjustment virtually no control or review.
  • the device requires little energy because the blow-off operations can be adjusted to last only as long as required for rapid and effective cleaning.
  • the inventive system prevents the emission of harmful aerosols and the noise can be avoided on a large scale.
  • the workpieces are absolutely clean in no time and free from residues.

Landscapes

  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (14)

  1. Procédé de nettoyage de pièces (2) pour enlever les milieux actifs accrochés et/ou les résidus d'usinage, selon lequel, on place la pièce (2) dans une chambre de nettoyage (1) et on applique un milieu de nettoyage gazeux à la chambre de nettoyage (1) pour enlever par soufflage les agents d'usinage et/ou les résidus d'usinage restés accrochés,
    le soufflage étant fait avec un grand nombre de jets séparés (22), dirigés sur la pièce (2) suivant au moins trois groupes et au moins les buses (4) des trois groupes (4a, 4b, 4c) sont dirigées sur la pièce (2) suivant des angles différents,
    caractérisé en ce qu'
    on abaisse la chambre de nettoyage (1) pour effectuer l'opération de nettoyage sur une installation de transfert (13) pour transférer les pièces (2).
  2. Procédé selon la revendication 1,
    selon lequel
    on utilise l'air comprimé comme milieu de nettoyage et la pression du milieu de nettoyage est comprise entre 0,5 bar et 10 bars et de préférence entre 0,9 bar et 8 bars.
  3. Procédé selon l'une quelconque des revendications 1 et 2,
    selon lequel
    on déplace la pièce (2) par rapport à la chambre de nettoyage (1) et on la tourne de préférence dans la chambre de nettoyage (1).
  4. Procédé selon la revendication 3,
    caractérisé en ce qu'
    on dirige un premier groupe de jets séparés suivant un premier angle par rapport à la direction de rotation (7), un second groupe de jets séparés dans une direction correspondant à la direction de l'axe de rotation et un troisième groupe de jets séparés suivant un angle par rapport à la direction de rotation sur la pièce (2).
  5. Procédé selon la revendication 1,
    selon lequel
    on déplace la pièce (2) en translation par rapport à la chambre de nettoyage (1).
  6. Procédé selon la revendication 5,
    selon lequel
    on dirige un premier groupe de jets séparés, suivant un angle, contre la direction de déplacement, un second groupe de jets séparés perpendiculairement à la direction de déplacement et un troisième groupe de jets séparés, suivant un angle, dans la direction de déplacement sur la pièce (2).
  7. Dispositif de nettoyage de pièces (2) pour enlever les agents d'usinage, restés accrochés et/ou les résidus d'usinage comprenant une chambre de nettoyage (1) et des moyens pour introduire un milieu de nettoyage gazeux, ces moyens étant formés par des buses (4) réparties en au moins trois groupes (4a, 4b, 4c),
    au moins les buses (4) des trois groupes (4a, 4b, 4c) étant dirigées suivants des angles différents par rapport à la pièce (2),
    caractérisé en ce que
    la chambre de nettoyage (1) peut être abaissée sur une installation de transfert (13) transférant les pièces (2).
  8. Dispositif selon la revendication 7,
    selon lequel
    les buses (4) sont des buses à air comprimé de préférence des buses réglables à plusieurs trous.
  9. Dispositif selon l'une quelconque des revendications 7 ou 8,
    selon lequel
    les buses (4) d'un groupe sont prévues sur au moins un tube distributeur commun.
  10. Dispositif selon la revendication 9,
    caractérisé en ce que
    les buses (4) d'un premier groupe (4a) font un angle (25a) d'environ 25° par rapport à la normale (15a) du tube de distribution (3), les buses (4) du second groupe (4b) sont parallèles à la normale (15a) du tube de distribution (3) et les buses (4) d'un troisième groupe (4c) font un angle (25c) compris entre 10° et 35° par rapport à la normale (15a) du tube de distribution (3), de façon opposée aux buses (4) du premier groupe (4a).
  11. Dispositif selon l'une quelconque des revendications 7 à 10, ayant une installation pour réaliser un mouvement relatif entre la pièce (2) et les buses (4), cette installation étant une installation de serrage.
  12. Dispositif selon l'une quelconque des revendications 7 à 11,
    ayant un palier mobile pour les buses (4).
  13. Dispositif selon l'une quelconque des revendications 7 à 12,
    dans lequel
    la chambre de nettoyage (4) comporte un orifice de sortie pour le milieu de nettoyage.
  14. Dispositif selon l'une quelconque des revendications 7 à 13,
    dans lequel
    à l'intérieur de la chambre de nettoyage (1), il y a une structure en forme de grille pour recevoir et dévier le brouillard de pulvérisation mis en turbulence et des particules de liquide.
EP05450179A 2004-11-04 2005-11-03 Pocédé et appareil de nettoyage de pièces industrielles Active EP1655082B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE202005020926U DE202005020926U1 (de) 2004-11-04 2005-11-03 Vorrichtung zur Reinigung von Werkstücken
PL05450179T PL1655082T3 (pl) 2004-11-04 2005-11-03 Sposób i urządzenie do oczyszczania przedmiotów obrabianych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0079504U AT8046U1 (de) 2004-11-04 2004-11-04 Verfahren zur reinigung von werkstücken
AT0118805A AT500610B1 (de) 2004-11-04 2005-07-14 Verfahren zur reinigung von werkstücken

Publications (2)

Publication Number Publication Date
EP1655082A1 EP1655082A1 (fr) 2006-05-10
EP1655082B1 true EP1655082B1 (fr) 2007-06-13

Family

ID=35696071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05450179A Active EP1655082B1 (fr) 2004-11-04 2005-11-03 Pocédé et appareil de nettoyage de pièces industrielles

Country Status (5)

Country Link
EP (1) EP1655082B1 (fr)
AT (2) AT500610B1 (fr)
DE (1) DE502005000854D1 (fr)
ES (1) ES2289685T3 (fr)
PL (1) PL1655082T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010061115A1 (de) 2009-12-15 2011-07-28 Knoth, Hubert, Ing. Vorrichtung zur Reinigung und Kühlung von Werkstücken
DE102010016038B4 (de) * 2009-03-24 2016-09-01 Hubert Knoth Vorrichtung und Verfahren zur Reinigung und Kühlung von Werkstücken

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006039035B4 (de) 2006-08-19 2023-06-01 Werner Meissner Verfahren zur Oberflächenbehandlung eines Werkstückes in der Behandlungskammer einer industriellen Reinigungsanlage
DE102010028883A1 (de) * 2010-05-11 2011-11-17 Dürr Ecoclean GmbH Prozessbehälter
AT514185B1 (de) 2013-03-15 2016-07-15 Ka Group Man Gmbh Verfahren zur Reinigung von Werkstücken
DE202013008513U1 (de) 2013-09-25 2014-01-14 Apparate- und Behälterbau Weller GmbH Vorrichtung zur Reinigung von Bauteilen/Werkstücken mit Blasluft
CN103752566B (zh) * 2013-10-25 2015-07-01 沈阳黎明航空发动机(集团)有限责任公司 一种用清洗装置清洗航空发动机半封闭窄轴腔的方法
AT519001B1 (de) * 2016-11-04 2018-03-15 Ka Group Man Gmbh Düsenvorrichtung
DE102019116307A1 (de) * 2019-05-08 2020-11-12 Ecoclean Gmbh Reinigungsvorrichtung und Verfahren zum Reinigen von Bauteilen
CN113500047A (zh) * 2021-07-08 2021-10-15 德州裕辉科技咨询有限公司 一种人脸图像处理设备

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Publication number Priority date Publication date Assignee Title
DE2936779A1 (de) * 1979-09-12 1981-04-02 Fischer, Friedrich W., 7500 Karlsruhe Absaughaube fuer grosse bremssysteme
DE3419028A1 (de) * 1984-04-05 1985-11-21 Kessler & Luch Gmbh, 6300 Giessen Verfahren zum reinigen von koerpern mit luftstrahlen und vorrichtung zur durchfuehrung des verfahrens
US4808234A (en) * 1984-08-30 1989-02-28 Mcwinn Filter Services Ltd. Cleaner assembly for air filters
JP2872777B2 (ja) * 1990-08-23 1999-03-24 マツダ株式会社 車体のゴミ除去方法
US5293663A (en) * 1991-10-15 1994-03-15 Food Industry Equipment International, Inc. Fluid cleaning system
DE19532576A1 (de) * 1995-09-04 1997-03-06 Hans Hermann Dipl Ing Gross Einrichtung zum Reinigen von Werkstücken

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010016038B4 (de) * 2009-03-24 2016-09-01 Hubert Knoth Vorrichtung und Verfahren zur Reinigung und Kühlung von Werkstücken
DE102010061115A1 (de) 2009-12-15 2011-07-28 Knoth, Hubert, Ing. Vorrichtung zur Reinigung und Kühlung von Werkstücken
AT509238B1 (de) * 2009-12-15 2011-11-15 Hubert Ing Knoth Vorrichtung zur reinigung und kühlung von werkstücken
DE102010061115B4 (de) * 2009-12-15 2017-03-23 Hubert Knoth Vorrichtung zur Reinigung und Kühlung von Werkstücken

Also Published As

Publication number Publication date
ES2289685T3 (es) 2008-02-01
AT500610A4 (de) 2006-02-15
PL1655082T3 (pl) 2007-11-30
DE502005000854D1 (de) 2007-07-26
EP1655082A1 (fr) 2006-05-10
AT500610B1 (de) 2006-02-15
ATE364455T1 (de) 2007-07-15

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