EP2246128A2 - Procédé et dispositif d'élimination de résidus de fabrication des conduites dans des pièces usinées - Google Patents

Procédé et dispositif d'élimination de résidus de fabrication des conduites dans des pièces usinées Download PDF

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Publication number
EP2246128A2
EP2246128A2 EP10160987A EP10160987A EP2246128A2 EP 2246128 A2 EP2246128 A2 EP 2246128A2 EP 10160987 A EP10160987 A EP 10160987A EP 10160987 A EP10160987 A EP 10160987A EP 2246128 A2 EP2246128 A2 EP 2246128A2
Authority
EP
European Patent Office
Prior art keywords
fluid
negative pressure
passage
workpiece
conduits
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.)
Granted
Application number
EP10160987A
Other languages
German (de)
English (en)
Other versions
EP2246128B1 (fr
EP2246128A3 (fr
Inventor
Willi Kalk
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.)
Moers Textilmaschinen GmbH
Original Assignee
Moers Textillmaschinen 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
Application filed by Moers Textillmaschinen GmbH filed Critical Moers Textillmaschinen GmbH
Publication of EP2246128A2 publication Critical patent/EP2246128A2/fr
Publication of EP2246128A3 publication Critical patent/EP2246128A3/fr
Application granted granted Critical
Publication of EP2246128B1 publication Critical patent/EP2246128B1/fr
Not-in-force 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
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • 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
    • B08B5/04—Cleaning by suction, with or without auxiliary action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid

Definitions

  • the invention relates to a method for removing production residues from passages in workpieces by means of a fluid, each passage being completely flooded with fluid and a pressure acting on the fluid in the passage creating a flow of the fluid in the passage.
  • the company DÜRR Aktiengesellschaft has developed the so-called dip-flooding of workpieces for residue removal in passes, in which the workpiece is placed in a flood chamber which is filled with about 300 liters of washing liquid.
  • a flood chamber which is filled with about 300 liters of washing liquid.
  • fluid jets are directed in a pulse-like manner with flow velocities of up to 45 m / s onto the passages of the workpiece with the aid of a nozzle system Remove residues from the passageways.
  • the pressure buildup causes a deformation and detachment of trapped chips.
  • the removal of the residues is often unsatisfactory, since the nozzle jet impinges only on partial surfaces of the passage. Concealed surfaces in the passages that are not directly accessible to the jet can not be effectively cleaned.
  • the efficiency of the residue removal is further reduced by the fact that the incident jet, especially at irregularly shaped passages, such as overflow or cooling channels in cylinder blocks, is reflected several times.
  • the invention is based on the object to provide a method of the type mentioned above, which enables improved removal of manufacturing residues from passages of workpieces, especially in passages with undercuts and / or bottlenecks at lower power requirements.
  • a device for carrying out the method is to be proposed.
  • This object is achieved in a method of the type mentioned in that initially flooded each passage and then a negative pressure on the fluid is brought into effect.
  • the further improvement of the removal of manufacturing residues is achieved by first flooding each passage and then bringing the negative pressure preferably abruptly on the fluid to the effect.
  • the resulting negative pressure impact with a negative pressure of up to -0.7 bar, preferably -0.5 bar leads to an effective replacement of the manufacturing residues and their removal from the passage.
  • the negative pressure is abruptly brought to effect, for example, that at least one switching element, in particular one or more valves each flooded passage is brought into conductive communication with a vacuum source, in particular a vacuum container.
  • a vacuum source in particular the vacuum tank already acts the full negative pressure, which is fully effective immediately by opening each switching element in the flooded passages.
  • the connection between the passages and the vacuum source via fluid lines and possibly adapter for connecting the pipes to the passages.
  • a negative pressure acts on the fluid, which generates a flow of the fluid in the passage from the constriction in the direction of the extension of the passage.
  • the production residues are thus effectively removed from the bottleneck in the direction of the expansion, so that blockages are avoided.
  • the power requirement for residue removal when using Underpressure less than using a positive pressure acting on the fluid in the passage.
  • each passage is completely flooded with fluid and, by pressure acting on the fluid in the passage, a flow of the fluid in each passage is created.
  • a fluid is particularly suitable water. A temperature increase of the water is not required. It can with ambient temperature of e.g. 22 ° C are used.
  • the residue removal is further improved by acting on the flowing fluid, a pulsating negative pressure.
  • the pulsation causes a setting of the manufacturing residues dissolved by the flowing fluid and thus a blockage of the passage at bottlenecks and / or undercuts is prevented.
  • An advantageous device for carrying out the method is characterized in that the device has a fluid container for receiving a workpiece in the fluid, the workpiece has at least one passage with two outlet openings and a fluid line is connected to one of the outlet openings of each passage, which are connected to means for generating a negative pressure in the fluid line.
  • the fluid container is dimensioned so that the workpiece is completely absorbed by this and its passages are completely flooded with fluid.
  • the fluid line connected to a vacuum generator generates the flow in the fully flooded passage.
  • the fluid line end of an adapter In order to bring the full power of the vacuum generator in the passages of the workpiece to act, the fluid line end of an adapter, the edge of which surrounds the outlet opening and sealingly rests on the surface of the workpiece. This ensures that the full suction power of the vacuum generator is coupled into the fluid flowing through the passage where it is converted into flow energy of the fluid.
  • the means for generating a negative pressure preferably comprise a vacuum container for receiving the fluid which passes from the fluid container through the passages via the fluid lines in the vacuum vessel, wherein the vacuum container above the maximum fluid level connected to a vacuum pump.
  • at least one switching valve is disposed in the fluid lines between the vacuum container and the adapters.
  • the device for carrying out the method according to the invention has a fluid container (1) for receiving a workpiece (2) in the fluid.
  • the workpiece (2) is, for example, a cylinder head of a four-cylinder in-line engine with four cylinder bores and surrounding coolant channels having undercuts.
  • a respective fluid line (3) is connected; the fluid lines are connected to means for generating a negative pressure in the fluid lines (3).
  • ends the fluid lines (3) each have an adapter (4) which is adapted to the workpiece (2).
  • the edge of the adapter (4) surrounds the various outlet openings of the passages and lies sealingly on the surface of the workpiece (2).
  • the fluid lines (3) converge in a collecting line (5), which is connected to a vacuum container (6) for receiving the fluid. Above the maximum fluid level of the vacuum container (6), this is connected to a vacuum pump designated overall by (7).
  • a switching valve (8a) In the manifold (5) is located between the fluid lines (3) and the vacuum tank (6), a switching valve (8a).
  • a return line (9) between the vacuum container (6) and a storage container (10) another switching valve (8b).
  • the storage container (10) opens the return line (9) in a coarse filter (11).
  • the cleaned fluid passes from the feed tank (10) via a supply pump (12), a fine filter (13) via the return line (14) back into the fluid container (1) for receiving the workpiece (2).
  • the device works as follows:
  • Each passage in the workpiece (2) is completely flooded with the fluid when placed in the fluid in the fluid container (1).
  • a negative pressure is built up by means of the vacuum pump (7).
  • opening the switching valve (8a) in the manifold (5) of the negative pressure prevailing in the vacuum container (6) in the fluid lines (3) is suddenly effective.
  • the production residues entrained thereby by the flow pass over the fluid line (s) (3) as well as the collecting line (5) when the switching valve (8a) is open and closed Change-over valve (8b) in the vacuum tank (6).
  • the vacuum pump (7) is deactivated, so that via the open switching valve (8b) loaded with the residues fluid from the vacuum tank (6) via the return line (9) and the coarse filter (11) in the storage container (10 ). From there, the fluid with the aid of the supply pump (12) via a fine filter (13) and the return line (14) after removal of the residues to the fluid container (1) again supplied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)
EP10160987.3A 2009-04-28 2010-04-26 Procédé et dispositif d'élimination de résidus de fabrication des conduites dans des pièces usinées Not-in-force EP2246128B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009018900 2009-04-28
DE102009038733.1A DE102009038733B4 (de) 2009-04-28 2009-08-27 Verfahren und Vorrichtung zum Entfernen von Fertigungsrückständen aus Durchgängen in Werkstücken

Publications (3)

Publication Number Publication Date
EP2246128A2 true EP2246128A2 (fr) 2010-11-03
EP2246128A3 EP2246128A3 (fr) 2012-09-19
EP2246128B1 EP2246128B1 (fr) 2014-09-17

Family

ID=42288727

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10160987.3A Not-in-force EP2246128B1 (fr) 2009-04-28 2010-04-26 Procédé et dispositif d'élimination de résidus de fabrication des conduites dans des pièces usinées

Country Status (2)

Country Link
EP (1) EP2246128B1 (fr)
DE (1) DE102009038733B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016119436A1 (de) 2016-10-12 2018-04-12 Dürr Ecoclean GmbH Vorrichtung und Verfahren zum Reinigen eines Werkstücks

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015203323A1 (de) * 2015-02-24 2016-08-25 Dürr Ecoclean GmbH Anlage und Verfahren für das Behandeln eines Werkstücks

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005019285B3 (de) 2005-04-26 2006-06-01 Albert Handtmann Armaturenfabrik Gmbh & Co. Kg Reinigungsanlage für spanend bearbeitete Werkstücke

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441401A1 (de) * 1994-11-10 1996-05-15 Bandelin Electronic Gmbh & Co Vorrichtung zur Reinigung ärztlicher Instrumente
DE29717946U1 (de) * 1997-10-09 1999-02-11 ISS Industrie- und Schiffs-Service R. Gradewald oHG, 22880 Wedel Ultraschallreinigungsgerät mit Schockvakuumeinrichtung
DE20006495U1 (de) * 2000-04-07 2000-06-29 Skf Gmbh Vorrichtung zur Reinigung von Werkstücken, insbesondere von Lagerringen oder Wälzkörpern
JP2002159925A (ja) * 2000-11-27 2002-06-04 Kinji Matsumoto 瞬間真空洗浄機
DE10153087A1 (de) * 2001-10-30 2003-05-22 Klaus Doehrer Verfahren zum Entfernen von an einem Werkstück anhaftenden Verunreinigungen in Form von Ölen, Fetten oder Emulsionen mit darin enthaltenen festen Partikeln, und Vorrichtung zur Durchführung des Verfahrens
US7320328B2 (en) * 2003-03-19 2008-01-22 James Byron Walker Pulsed pressure cleaning apparatus and process
DE102005013948B4 (de) * 2005-03-26 2018-09-13 Werner Meissner Einrichtung zum Bestrahlen industrieller Teile mit Flüssigkeit
DE102006039507A1 (de) * 2006-08-23 2008-03-13 Dürr Ecoclean GmbH Reinigungsvorrichtung und Verfahren zum Reinigen eines Werkstücks
JP2008104904A (ja) * 2006-10-23 2008-05-08 Shiga Yamashita:Kk ワークに付着した異物を除去する洗浄装置
DE102006052615B4 (de) * 2006-11-08 2008-10-02 Meissner, Werner Einrichtung zum Bestrahlen von Reinigungsgut mit Flüssigkeit in einer Bestrahlungskammer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005019285B3 (de) 2005-04-26 2006-06-01 Albert Handtmann Armaturenfabrik Gmbh & Co. Kg Reinigungsanlage für spanend bearbeitete Werkstücke

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016119436A1 (de) 2016-10-12 2018-04-12 Dürr Ecoclean GmbH Vorrichtung und Verfahren zum Reinigen eines Werkstücks
WO2018069342A1 (fr) 2016-10-12 2018-04-19 Ecoclean Gmbh Dispositif et procédé pour nettoyer une pièce

Also Published As

Publication number Publication date
DE102009038733B4 (de) 2020-11-12
DE102009038733A1 (de) 2010-11-11
EP2246128B1 (fr) 2014-09-17
EP2246128A3 (fr) 2012-09-19

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