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EP1676649A1 - appareil pour le nettoyage des copeaux et du lubrifiant restant sur les pièces mécaniques après usinage - Google Patents

appareil pour le nettoyage des copeaux et du lubrifiant restant sur les pièces mécaniques après usinage Download PDF

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Publication number
EP1676649A1
EP1676649A1 EP05028628A EP05028628A EP1676649A1 EP 1676649 A1 EP1676649 A1 EP 1676649A1 EP 05028628 A EP05028628 A EP 05028628A EP 05028628 A EP05028628 A EP 05028628A EP 1676649 A1 EP1676649 A1 EP 1676649A1
Authority
EP
European Patent Office
Prior art keywords
mechanical parts
holder
washing chamber
delivering
compressed air
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.)
Withdrawn
Application number
EP05028628A
Other languages
German (de)
English (en)
Inventor
Aurelio Caroli
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.)
TEKNOX Srl
Original Assignee
TEKNOX Srl
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 TEKNOX Srl filed Critical TEKNOX Srl
Publication of EP1676649A1 publication Critical patent/EP1676649A1/fr
Withdrawn legal-status Critical Current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
    • B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/18—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles
    • F26B11/181—Machines or apparatus for drying solid materials or objects with movement which is non-progressive on or in moving dishes, trays, pans, or other mainly-open receptacles the receptacle being a foraminous, perforated or open-structured drum or drum-like container, e.g. rotating around a substantially horizontal or vertical axis; the receptacle being multiple perforated drums, e.g. in superimposed arrangement
    • F26B11/182—Arrangements for the supply or exhaust of gaseous drying medium, e.g. perforated tubes

Definitions

  • the present invention relates to the technical field concerning the machines for cleaning mechanical parts after the working operations.
  • the invention relates to an apparatus for removing scraps or lubricant residues remaining after working and adhering to the mechanical parts, which have just been subjected to lathe turning or other operations.
  • the above operations usually include the removal, from the part, of a certain quantity of material under the form of scraps and/or powder.
  • the tool and the part are usually sprayed with a water and oil emulsion, to be cooled and lubricated.
  • the part In order to be used subsequently, either to be mounted in a device, of which it is an element, or only to be stored or packaged, the part must be perfectly clean, and thus free of scraps or metallic powder, as well as of the residue emulsion patina.
  • Such machines belong mainly to two different types.
  • the parts to be cleaned are introduced into a substantially sealed chamber, put on suitable supports.
  • a plurality of nozzles are also situated in the sealed chamber, connected to a source of liquid under pressure by suitable pipes and aimed at ejecting jets of the washing liquid toward the parts.
  • the chamber includes also a container for collecting the washing liquid and the scraps and lubricant residues.
  • the nozzles are arranged and oriented in the sealed chamber in such a way that the jets of liquid produced thereby reach the parts from every angle and in every point of their surface.
  • the nozzles or the parts supports are movable, so that it is possible to change the incidence angle of the jets of washing liquid, according to prefixed programs.
  • Another type of washing machine includes a tunnel, opened at its ends, through which the parts are gradually transported by suitable conveyors.
  • the nozzles for washing the parts are situated along the tunnel.
  • the jets of washing liquid hit the parts during their passage through the nozzles action range.
  • the nozzles are situated on robot controlled arms, whose movement can be programmed in relation to the shape and other characteristic features of each part to be washed, such as e.g. particularly arranged and oriented holes, or recesses, which are difficult to reach.
  • Systems including suitably arranged sensors detect the position and orientation of the arriving parts and allow the machine control unit to move the nozzles adequately, so that their jets reach every point of the parts, in which there can be some scrap or residue to remove.
  • washing liquids used by the above mentioned machines are mixtures of water and chemical detergent substances of different type, whose composition is known to those skilled in the art and which will not be explained in detail, because it does not concern the present invention.
  • the above described washing machines usually allow to obtain excellent washing effects also in the most difficult cases.
  • washing machines Another disadvantage of all the above mentioned washing machines lies in the fact that the used washing liquids are toxic or anyway, highly polluting and, according to the regulations in force, they must be collected and disposed according to very precise and rather expensive procedures.
  • the tightness of the sealed washing chambers must be kept in best condition, to avoid leakage of atomized liquid, which could pollute the surrounding environment and be inhaled by the operators present in the area.
  • the energy consumption of the above mentioned machines is rather high, mainly because of the power required to heat and to compress the washing liquid up to the necessary high working pressures and temperatures.
  • a further disadvantage derives from the down times during activation of the known washing machines, due to the heating of the washing liquid as well as to the time necessary for the liquid periodic substitution.
  • scraps and lubricant residues are often removed directly by the machine operators, by a jet of compressed air operated manually, when the part is removed from the machine tool.
  • the main object of the present invention is to propose an apparatus for removing scraps and lubricant residues remaining after working from mechanical parts, and in particular from mechanical parts, whose shape is not particularly complicated, or which do not require an especially high cleanness level.
  • the proposed apparatus does not generate toxic or polluting products, which should be subsequently disposed of or which could contaminate the surrounding environment in some way and create problems for the personnel.
  • Another object of the present invention is to propose an apparatus, which can assure a very good cleaning level for simple mechanical parts, and whose purchase, use and maintenance costs are reduced.
  • a further object of the present invention is to propose an apparatus, whose structure is simple and extremely reliable.
  • Figures 1 and 2 illustrate a first embodiment of an apparatus 100 for removing scraps and lubricant residues remaining after working from mechanical parts 1, obtained according to the present invention.
  • the apparatus 100 includes a substantially parallelepiped washing chamber 2, mounted on a support structure 2a resting on the ground.
  • the chamber 2 includes a fore aperture 3, which has closing means 4, aimed at closing the chamber during working on the apparatus 100.
  • the closing means 4 include a shutter 40, sliding vertically between lateral guides 41, 42, situated at the edges of the aperture 3.
  • the shutter 40 is operated by operating means 43, 44 and controlled by a suitable control unit 30, so as to perform raising and lowering movements.
  • the operating means 43, 44 include a pair of pneumatic cylinders, whose stems 43a, 44a have their ends fastened to the upper part of the shutter 40.
  • Means 10 for supporting mechanical parts 1 are situated inside the washing chamber 2, for carrying the above mentioned mechanical parts 1 in working position during the operations for removing the scraps and lubricant residues therefrom.
  • the support means 10 include a cage-like holder 11, which has a plurality of sections 12 for housing the mechanical parts 1, and means 13 for operating the holder 11 to move alternately in vertical direction inside the washing chamber 2.
  • the operating means 13 include a pneumatic cylinder, fastened externally to the upper part of the washing chamber 2 and having a stem 13a, which extends vertically inside the chamber 2 and whose free end is fastened to the above mentioned holder 11.
  • the apparatus 100 includes also means 20 for delivering pressurized air, situated inside the washing chamber 2 and set in communication with an external source of compressed air.
  • the delivering means 20 are aimed at delivering compressed air to the mechanical parts 1 housed in the holder 11, to remove the scraps and lubricant residues therefrom.
  • the delivering means 20 include a plurality of delivering pipes 21, which extend horizontally, like a comb, from a linear connection element 22, situated inside the washing chamber 2 and introducing between the sections 12 of the holder 11, so as not to interfere with the alternate movement of the latter.
  • the delivering pipes 21 include a plurality of delivering nozzles 25, substantially distributed in a regular way on their whole surface.
  • the holder moves also horizontally, toward the washing chamber aperture 2 .
  • the holder 11 is mounted gliding on a horizontal slide 90, fastened to the free end of the stem 13a of the cylinder 13.
  • a second pneumatic cylinder 91 fastened to the rear end of the slide 90, has a stem 91a, to whose free end the holder 11 is fastened.
  • the second pneumatic cylinder 91 is operated, in prefixed ways and controlled by the control unit 30, to move the holder 11 alternately, its functional task will be explained later on.
  • the delivering pipes 21 move alternately, while the holder 11 is mounted motionless in the washing chamber 2.
  • the apparatus 100 includes also a pressure adjusting device 7, which is situated between the source of compressed air and the above described linear joint 22, and connected to the latter by a channel 23, aimed at defining the pressure of compressed air going out of the nozzles.
  • the collecting means 5 include a hopper 51, whose inlet opening is situated on the bottom of the washing chamber 2, and a bin 52, removably fastened to the outlet opening of the hopper 51 and aimed at collecting the scraps.
  • the bin 52 can be advantageously removed, after having been filled with the scraps as mentioned above, in order to dispose the latter.
  • a deterging product dispenser 8 is situated between the pressure adjusting device 7 and the delivering pipes 21, for supplying an atomized stream of the deterging product together with the compressed air delivered by the delivering pipes 21, in order to facilitate the detachment of the scraps and the removal of possible residues of emulsion remaining on the parts 1.
  • the dispenser 8 includes a tank, which is connected to the above mentioned channel 23 and aimed at collecting the product to supply continuously small doses thereof, due to the suction action of the compressed air passing through the channel 23.
  • a suitable container-filter 53 is introduced into the bin 52, in order to separate the solid scraps removed from the parts 1 from the liquid deterging product, deriving from the tank 8, although in small quantities, and from the oily residues removed from the parts 1.
  • the apparatus 100 includes also filtering means 80, set in communication with the washing chamber 2 and aimed at withdrawing therefrom the excess of air, at filtering and expelling it outside.
  • the filtering means 80 include, arranged in a series with respect to the flow of air, a feeding channel 81, connected to the upper part of the washing chamber 2, a filtering cartridge 82 and a discharge channel 83, opening to the outside the apparatus.
  • a heater 95 situated upstream of the delivering pipes 21 and of the pressure adjusting device 7, along the compressed air supply path, is operated, controlled by the control unit 30, to heat the entering flow of air.
  • the mechanical parts 1 to be cleaned are introduced into the washing chamber 2 and put into the holder 11, in the suitable sections 12.
  • the shutter 40 is lowered, due to operation of the pneumatic cylinders 43, 44, by acting on suitable pushbuttons of the apparatus control unit 30.
  • the compressed air is introduced into the washing chamber 2, through the pressure adjusting device, the delivering pipes 21 and the relative nozzles 25.
  • the pneumatic cylinder 13 operates the holder 11 to reciprocate vertically, at a suitable motion rate.
  • the removed materials fall, due to the gravity, onto the bottom of the chamber 2, and consequently, to the hopper 51 and the bin 52.
  • the finest, and consequently the lightest particles of metallic powder are sent, together with the exceeding air present in the washing chamber 2, creating overpressure therein, to the feeding channel 81, and then to the filter 82.
  • the particles are held inside the filter, while the air is expelled outside through the discharge channel 83.
  • the suction effect of the compressed air generates also a flow of atomized deterging product, picked up by suction from the corresponding tank 8.
  • the deterging product acts on the mechanical parts 1 and facilitates the detachment therefrom of the scraps and oil emulsion residues, possibly present on their surface.
  • the collecting means 5 include the above mentioned container-filter 53, a quite big part of the used deterging liquid and of the oily emulsion removed from the parts 1 is collected in the bin 2, while the solid parts, such as the scraps and the powder, are kept by the container-filter 53.
  • the scraps and residues removal operations are performed in two separate steps.
  • the scraps and the metallic powder, together with the oil emulsion residues are removed by the compressed air and atomized deterging product, while in the second blowing step only compressed air is used to dry the parts 1.
  • the heating of the compressed air by the heater 95, situated upstream of the delivering pipes 21, can be also added to the above described operations, in the drying step only, or in both.
  • the presence of the slide 90 and of the second pneumatic cylinder 91 allows to add two extra functions to the apparatus 100.
  • the second pneumatic cylinder 91 can be operated, during the working residue removal operations, to reciprocate the holder 11 within a limited range, so as to keep it within the dimensions of the washing chamber 2.
  • the second pneumatic cylinder 91 can be operated, before and after the beginning of the removal operations, to remove at least partially the holder 11 from the washing chamber 2 and to reintroduce it therein, respectively for facilitating the arrangement of the parts 1 in the holder 11 and their removal when the operations are completed.
  • the holder 11 can be mounted removably on the slide 90, using wholly known and not shown devices, so as to be substituted with another holder.
  • the support means 60 include a rotating holder 61.
  • the holder 61 is a substantially cylindrical, cage-like member and houses the mechanical parts 1 to be cleaned in its inside.
  • the operating means 63 include a motor 64, situated outside the washing chamber 2 and coupled to a vertical shaft 65, which carries the rotating holder 61, fastened to its free end.
  • the delivering means 70 include a plurality of delivering pipes 71, which extend vertically from a ring-like connection element 72, situated in the lower part of the washing chamber 2.
  • the delivering pipes 71 are regularly spaced apart, externally and laterally with respect to the rotating holder 61.
  • the delivering pipes 71 include nozzles 25, distributed on the portion of the pipes surface, which is oriented toward the holder 61, so as to deliver compressed air in prefixed directions and hit the mechanical parts 1 housed in the holder 61.
  • the delivering means 70 include a plurality of additional delivering pipes 73, which extend horizontally from the free ends of the delivering pipes 71, in a substantially radial direction, toward the inside of the rotating holder 61.
  • the additional delivering pipes 73 have nozzles 25, turned toward the holder 61, so as to act on the parts 1 situated therein.
  • the working of the apparatus 100 obtained according to the above described embodiment differs from the one described with relation to the first embodiment, basically because of the different movement of the holder 61, which in this case is rotating.
  • Another advantage of the invention derives from the fact that it assures a very good cleaning level for simple mechanical parts, while keeping purchase, use and maintenance costs reduced.
  • a further advantage of the present invention results from the fact that it proposes an apparatus, whose structure is simple and extremely reliable.
  • the changes and variants can include e.g. different or additional ways of the holder movement, technically within the knowledge of those skilled in the art, such as high frequency vibration of the holder; the use of different types of known devices for delivering air and supply pressures, such as micro-nozzles at very high pressure; the use of devices for generating the so-called “aur-blades", that is two-dimensional fronts of compressed air, instead of or in addition to the above described nozzles.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
EP05028628A 2005-01-04 2005-12-29 appareil pour le nettoyage des copeaux et du lubrifiant restant sur les pièces mécaniques après usinage Withdrawn EP1676649A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITBO20050003 ITBO20050003A1 (it) 2005-01-04 2005-01-04 Apparechiatura per la rimozione dei residui di lavorazione da pezzi meccanici

Publications (1)

Publication Number Publication Date
EP1676649A1 true EP1676649A1 (fr) 2006-07-05

Family

ID=36215599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05028628A Withdrawn EP1676649A1 (fr) 2005-01-04 2005-12-29 appareil pour le nettoyage des copeaux et du lubrifiant restant sur les pièces mécaniques après usinage

Country Status (2)

Country Link
EP (1) EP1676649A1 (fr)
IT (1) ITBO20050003A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010113126A3 (fr) * 2009-03-31 2011-05-05 Roberto Beguin Machine de dégraissage multi-chambres
EP2327483A1 (fr) * 2009-11-30 2011-06-01 Robert Sporer Appareil pour le nettoyage de pièces
CN101773920B (zh) * 2009-12-25 2012-11-21 天津锐新昌轻合金股份有限公司 清除铝合金工件铣削孔毛刺的装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8019194U1 (de) * 1980-07-17 1980-12-04 Ringler, Bernhard, 7076 Waldstetten Vorrichtung zum reinigen von werkstuecken
DE3135819A1 (de) * 1981-09-10 1983-03-17 Chemotec Engineering GmbH, 5220 Waldbröl Verfahren und vorrichtung zur oberflaechennassbehandlung von gegenstaenden
DE19629436A1 (de) * 1996-07-22 1998-01-29 Hans Hermann Dipl Ing Gross Absaugdüse um flüssige oder staubförmige Rückständen von langgestreckten Bauteilen abzusaugen
GB2337325A (en) * 1998-05-13 1999-11-17 Ricoh Kk Device for removing dust by blowing and sucking
US20040010883A1 (en) * 2002-07-17 2004-01-22 Stefan Furrer Apparatus for cleaning toner cartridges

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8019194U1 (de) * 1980-07-17 1980-12-04 Ringler, Bernhard, 7076 Waldstetten Vorrichtung zum reinigen von werkstuecken
DE3135819A1 (de) * 1981-09-10 1983-03-17 Chemotec Engineering GmbH, 5220 Waldbröl Verfahren und vorrichtung zur oberflaechennassbehandlung von gegenstaenden
DE19629436A1 (de) * 1996-07-22 1998-01-29 Hans Hermann Dipl Ing Gross Absaugdüse um flüssige oder staubförmige Rückständen von langgestreckten Bauteilen abzusaugen
GB2337325A (en) * 1998-05-13 1999-11-17 Ricoh Kk Device for removing dust by blowing and sucking
US20040010883A1 (en) * 2002-07-17 2004-01-22 Stefan Furrer Apparatus for cleaning toner cartridges

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010113126A3 (fr) * 2009-03-31 2011-05-05 Roberto Beguin Machine de dégraissage multi-chambres
EP2327483A1 (fr) * 2009-11-30 2011-06-01 Robert Sporer Appareil pour le nettoyage de pièces
CN101773920B (zh) * 2009-12-25 2012-11-21 天津锐新昌轻合金股份有限公司 清除铝合金工件铣削孔毛刺的装置

Also Published As

Publication number Publication date
ITBO20050003A1 (it) 2006-07-05

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