DE2408359C3 - Machine for cleaning, grinding and polishing objects - Google Patents

Machine for cleaning, grinding and polishing objects

Info

Publication number
DE2408359C3
DE2408359C3 DE2408359A DE2408359A DE2408359C3 DE 2408359 C3 DE2408359 C3 DE 2408359C3 DE 2408359 A DE2408359 A DE 2408359A DE 2408359 A DE2408359 A DE 2408359A DE 2408359 C3 DE2408359 C3 DE 2408359C3
Authority
DE
Germany
Prior art keywords
machine
cleaning
coils
grinding
carrier medium
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
Application number
DE2408359A
Other languages
German (de)
Other versions
DE2408359B2 (en
DE2408359A1 (en
Inventor
James F. Feldhaus
William R. Lovness
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of DE2408359A1 publication Critical patent/DE2408359A1/en
Publication of DE2408359B2 publication Critical patent/DE2408359B2/en
Application granted granted Critical
Publication of DE2408359C3 publication Critical patent/DE2408359C3/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/10Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
    • B24B31/102Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work using an alternating magnetic field

Description

Die Erfindung betrifft eine Maschine zum Reinigen, Schleifen und Polieren von Gegenständen mit in einem flüssigen oder gasförmigen Trägermedium magnetisch bewegten Teilchen, mit einer Einrichtung zum Erzeugen eines elektromagnetischen Drehfeldes, die vier kreisförmig und sich paarweise gegenüberliegend angeordnete Spulen aufweist, welche von zwei ungleichphasigen Wechselstromquellen gespeist sind, und mit einem Behälter zur Aufnahme der magnetischen Teilchen und des Trägermediums.The invention relates to a machine for cleaning, grinding and polishing objects in one liquid or gaseous carrier medium magnetically moving particles, with a device for generating an electromagnetic rotating field, the four arranged in a circle and opposite one another in pairs Has coils, which are fed by two out of phase AC sources, and with one Container to hold the magnetic particles and the carrier medium.

Eine derartige Maschine ist aus der US-PS 27 35 232 bekanntgeworden. Mit der Maschine wird ein magnetisches Drehfeld erzeugt, das magnetisierbare Teilchen zu einer Bewegung in kleinen kreis- oder spiralförmigen Bahnen veranlaßt Der dabei auftretende Reinigungseffekt ist bei sonst gleichen Ausgangsbedingungen im wesentlichen nur von der Zeit abhängig, während der die zu reinigenden Gegenstände in der Maschine behandelt werden. Die mit der bekannten Maschine für die Reinigung aufzuwendenden Zeiten hüben sich jedoch bei hohen Ansprüchen an den Reinheitsgrad als zu lang erwiesen.Such a machine is known from US Pat. No. 2,735,232. With the machine becomes a magnetic Rotating field creates the magnetizable particle to move in small circular or spiral-shaped The cleaning effect that occurs is in the case of otherwise the same initial conditions essentially only depends on the time during which the items to be cleaned are in the machine be treated. The times required for cleaning with the known machine increase however, when the demands on the degree of purity are high, it has proven to be too long.

Um die Reinigungszeiten zu verkürzen, bedarf es einer Maschine, mit der je Zeiteinheit ein größerer Reinigungseffekt erzielbar bzw. mehr Schmutz von den Gegenständen entfernbar ist. Es ist daher Aufgabe der Erfindung, bei einer Maschine der eingangs genannten Art die Anordnung der Spulen derart zu ändern, daß die magnetisierbarer! Teilchen auf die zu reinigenden Oberflächen mit höherer Intensität auftreffen.In order to shorten the cleaning times, a machine is required with which a larger one per unit of time Cleaning effect can be achieved or more dirt can be removed from the objects. It is therefore the task of Invention to change the arrangement of the coils in a machine of the type mentioned in such a way that the more magnetizable! Particles hit the surfaces to be cleaned with higher intensity.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die vier Spulen sich gegenseitig überlappend angeordnet sind.According to the invention, this object is achieved in that the four coils overlap one another are arranged.

Durch die Erfindung wird erreicht, daß je Zeiteinheit der noch auf den Gegenständen verbleibende Restschmutzanteil erheblich verringert wird. Die für die Reinigung erforderliche Zeit wird gegenüber dem Stand der Technik etwa auf die Hälfte herabgesetzt
Außerdem ist der Reinheitsgrad höher, als er mit den
What is achieved by the invention is that, per unit of time, the proportion of residual dirt still remaining on the objects is considerably reduced. The time required for cleaning is reduced by about half compared to the prior art
In addition, the degree of purity is higher than with the

S Vorrirhtungen nach dem Stand der Technik bisher erreichbar war. Schließlich kann eine Anzahl von Gegenständen in nur einem Reinigungsdurchgang mit ungewöhnlicher Gleichmäßigkeit zwischen den Gegenständen untereinander gesäubert werden.S state-of-the-art equipment was previously achievable. Finally, a number of Items in just one cleaning pass with unusual uniformity between items be cleaned from each other.

ίο Nachfolgend wird eine bevorzugte Ausführungsform der Erfindung anhand der Zeichnung näher beschrieben. Dabei zeigt dieίο The following is a preferred embodiment the invention described in more detail with reference to the drawing. The

Fig. 1 die Maschine mit der erfindungsgemäßen Anordnung der Spulen im Grundriß undFig. 1 shows the machine with the arrangement of the coils according to the invention in plan and

Fig.2 den verkleinert dargestellten Schnitt 2-2 aus Fig. 1.2 shows the section 2-2 shown on a reduced scale Fig. 1.

Die vorzugsweise zum Reinigen, Schleifen und Polieren eingesetzte Maschine besitzt eine Einrichtung zur Erzeugung eines magnetischen Drehfeldes und weist vier einander überlappende Spulen oder Wicklungen aus isoliertem Draht in einer kreisförmigen Anordnung gegenüberliegender Paare auf, die aus zwei ungleichph&sigen Wechselstromquellen so gespeist sind, daß gegenüberliegende Spulen gleichphasig, aber magnetisch entgegengesetzt polarisiert sind.The machine, which is preferably used for cleaning, grinding and polishing, has a device for generating a rotating magnetic field and has four overlapping coils or windings of insulated wire in a circular array of opposing pairs made up of two uneven-phase alternating current sources are fed in such a way that that opposite coils are in phase, but magnetically oppositely polarized.

Eine derartige Maschine ist in den Fig. 1 und 2 gezeigt, bei der das Paar gegenüberliegender Spulen 30a, 30b um einen zylindrischen Behälter 32 hemm angeordnet und von einem Paar gegenüberliegender Spulen 31a, 316 so umgeben ist, daß die aneinanderstoßenden Enden der äußeren Spulen 31a, 31 £> im Bereich der Mitten der inneren Spulen 30a, 30b liegen und sich so eine überlappende Anordnung einstellt Die inneren Spulen 30a, 30Zj werden gemeinsam aus der ersten Wechselstromquelle so gespeist, daß sie jeweils entgegengesetzt magnetisch gepolt sind. Entsprechend gemeinsam speist die zweite Wechselstromquelle die äußeren Spulen 31a, 31 i> so, daß auch sie magnetisch entgegengesetzt gepolt sind. Dabei dürfen die die Spulenpaare speisenden Wechselströme nicht die gleiche Phase aufweisen.One such machine is shown in Figs. 1 and 2 in which the pair of opposing coils 30a, 30b are disposed around a cylindrical container 32 and are surrounded by a pair of opposing coils 31a, 316 so that the abutting ends of the outer coils 31a , 31 £> lie in the area of the centers of the inner coils 30a, 30b and an overlapping arrangement is established. Correspondingly, the second alternating current source jointly feeds the outer coils 31a, 31i> in such a way that they are also magnetically oppositely polarized. The alternating currents feeding the coil pairs must not have the same phase.

In der erfindungsgemäßen Maschine werden magnetische Teilchen verwendet, die in einem gasförmigen oder flüssigen Trägermedium vorliegen. Derartige Teilchen bestehen beispielsweise aus y-Eisenoxid (Fe2O3), hartem Bariumferrit (BaO . 6Fe2O3), teilchenförmigen Aluminium-Nickel-Kobalt-Legierungen oder deren Mischungen.In the machine according to the invention, magnetic particles are used which are present in a gaseous or liquid carrier medium. Such particles consist, for example, of γ-iron oxide (Fe 2 O 3 ), hard barium ferrite (BaO. 6Fe 2 O 3 ), particulate aluminum-nickel-cobalt alloys or mixtures thereof.

Die Reinigung oder das Polieren der GegenständeThe cleaning or polishing of the objects

erreicht man vorzugsweise, indem man den zu reinigenden Gegenstand und das Trägermedium mit den magnetischen Teilchen sowie gegebenenfalls Schleifteilchen und Reinigungsmittel in den (nichtmagnetischen) Behälter 32 innerhalb des Drehfeldes einbringt.is preferably achieved by having the object to be cleaned and the carrier medium with the magnetic particles and optionally abrasive particles and cleaning agents in the (non-magnetic) Brings container 32 within the rotating field.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: Maschine zum Reinigen, Schleifen und Polieren von Gegenständen mit in einem flüssigen oder gasförmigen Trägermedium magnetisch bewegten Teilchen, mit einer Einrichtung zum Erzeugen eines elektromagnetischen Drehfeldes, die vier kreisförmig und sich paarweise gegenüberliegend angeordnete Spulen aufweist, welche von zwei ungleichphasigen Wechselstromquellen gespeist sind, und mit einem Behälter zur Aufnahme der magnetischen Teilchen und des Trägermediums, dadurch gekennzeichnet, daß die vier Spulen (30a, 30b, 31a, 3Ib) sich gegenseitig überlappend angeordnet sind.Machine for cleaning, grinding and polishing objects with particles magnetically moved in a liquid or gaseous carrier medium, with a device for generating an electromagnetic rotating field, which has four circular coils arranged opposite one another in pairs, which are fed by two non-in-phase alternating current sources, and with a container for receiving the magnetic particles and the carrier medium, characterized in that the four coils (30a, 30b, 31a, 3Ib) are arranged so as to overlap one another.
DE2408359A 1973-02-20 1974-02-19 Machine for cleaning, grinding and polishing objects Expired DE2408359C3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00334000A US3848363A (en) 1973-02-20 1973-02-20 Apparatus for treating objects with particles moved by magnetic force

Publications (3)

Publication Number Publication Date
DE2408359A1 DE2408359A1 (en) 1974-09-05
DE2408359B2 DE2408359B2 (en) 1977-10-20
DE2408359C3 true DE2408359C3 (en) 1978-06-22

Family

ID=23305120

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2408359A Expired DE2408359C3 (en) 1973-02-20 1974-02-19 Machine for cleaning, grinding and polishing objects

Country Status (7)

Country Link
US (1) US3848363A (en)
JP (1) JPS532518B2 (en)
CA (1) CA1002265A (en)
DE (1) DE2408359C3 (en)
FR (1) FR2218165B1 (en)
GB (1) GB1456441A (en)
IT (1) IT1008866B (en)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4024295A (en) * 1975-04-07 1977-05-17 Minnesota Mining And Manufacturing Company Coating process utilizing propelled particles
US4000062A (en) * 1975-04-21 1976-12-28 Minnesota Mining And Manufacturing Company Magnetic particle separator
US4175930A (en) * 1978-04-27 1979-11-27 Baubel Alexandr A Method for finishing surfaces of non-magnetic articles by means of ferromagnetic abrasive powder in magnetic field
US4199265A (en) * 1978-10-30 1980-04-22 American Hospital Supply Corporation Motorless magnetically coupled stirrer
NL8020521A (en) * 1980-11-28 1982-10-01 Vladimir Alexeevich Vasiliev L METHOD FOR DEBURRING PARTS AND DEVICE FOR EXECUTION THEREOF
JPS5876150A (en) * 1981-10-30 1983-05-09 富士電機株式会社 Electromagnetic type apparatus for crushing, mixing and stirring treatments
JPS5876151A (en) * 1981-10-30 1983-05-09 富士電機株式会社 Operation of electromagnetic type apparatus for crushing, mixing and stirring treatments
US4601431A (en) * 1982-09-13 1986-07-22 Fuji Electric Company, Ltd. Traveling magnetic field type crusher
JPS59161261A (en) * 1983-03-04 1984-09-12 Amada Co Ltd Barrel abrasion device
US5206479A (en) * 1990-05-04 1993-04-27 Cem Corporation Microwave heating system
EP0478805B1 (en) * 1990-06-27 1994-03-09 Priority Co., Ltd. Magnetically-polishing machine and process
US5449313A (en) * 1992-04-14 1995-09-12 Byelocorp Scientific, Inc. Magnetorheological polishing devices and methods
US6503414B1 (en) 1992-04-14 2003-01-07 Byelocorp Scientific, Inc. Magnetorheological polishing devices and methods
WO1994004313A1 (en) * 1992-08-14 1994-03-03 Byelocorp Scientific, Inc. Magnetorheological polishing devices and methods
DE69430370T2 (en) * 1993-06-04 2002-12-12 Byelocorp Scient Inc MAGNETORHEOLOGICAL POLISHING DEVICES AND METHOD
MX9801197A (en) * 1995-08-24 1998-04-30 Minnesota Mining & Mfg Process for making particle-coated solid substrates.
US5662516A (en) * 1995-09-27 1997-09-02 You; Jae Hyun Magnetic barrel tumbler
US5795212A (en) * 1995-10-16 1998-08-18 Byelocorp Scientific, Inc. Deterministic magnetorheological finishing
US5817374A (en) * 1996-05-31 1998-10-06 Electrox Corporation Process for patterning powders into thick layers
US5962082A (en) * 1997-08-19 1999-10-05 Aveka, Inc. Process for applying liquid coatings to solid particulate substrates
US6063616A (en) * 1997-11-04 2000-05-16 Cornell Research Foundation, Inc. Matrix mill for DNA extraction
US6776174B2 (en) * 1998-08-21 2004-08-17 Paul E. Nisson Apparatus for washing magnetic particles
JP2001259539A (en) * 2000-03-24 2001-09-25 Ricoh Co Ltd Cleaning system and cleaning method
WO2004000446A2 (en) * 2002-06-20 2003-12-31 Arizona Board Of Regents Method and arrangement of rotating magnetically inducible particles
AU2003263375A1 (en) * 2002-08-30 2004-03-19 Janos Kodacsy Apparatus for cleaning, deburring and polishing parts in magnetic field
US7152611B2 (en) * 2002-12-30 2006-12-26 International Tape Partners, Llc Coated multifilament dental devices overcoated with imbedded particulate
US6962433B2 (en) * 2003-01-30 2005-11-08 Scientific Industries, Inc. Magnetic stirring apparatus having low rotational speeds
US20060086834A1 (en) * 2003-07-29 2006-04-27 Robert Pfeffer System and method for nanoparticle and nanoagglomerate fluidization
US7183030B2 (en) 2004-05-07 2007-02-27 Samsung Electronics Company Negatively charged coated electrographic toner particles and process
US20050250028A1 (en) * 2004-05-07 2005-11-10 Qian Julie Y Positively charged coated electrographic toner particles and process
WO2006119301A2 (en) * 2005-05-02 2006-11-09 New Jersey Institute Of Technology Fractal structured nanoagglomerates as filter media
US8011424B2 (en) * 2005-06-09 2011-09-06 The United States Of America, As Represented By The Secretary Of The Navy System and method for convective heat transfer utilizing a particulate solution in a time varying field
EP1762907B1 (en) * 2005-09-13 2010-06-30 Ricoh Company, Ltd. Development roller and surface treatment device
US20070207272A1 (en) * 2006-03-03 2007-09-06 Puri Ishwar K Method and apparatus for magnetic mixing in micron size droplets
US7899374B2 (en) * 2007-01-11 2011-03-01 Ricoh Company, Ltd. Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the same
US20090188520A1 (en) * 2008-01-30 2009-07-30 Whitehill Oral Technologies, Inc. Coated dental devices with ablative abrasives
US8202411B2 (en) * 2008-03-19 2012-06-19 Eltron Research & Development, Inc. Electrowinning apparatus and process
CA2726813A1 (en) * 2008-05-30 2009-12-03 Qlt Plug Delivery, Inc. Surface treated implantable articles and related methods
CH700770A2 (en) * 2009-04-15 2010-10-15 Philippe Saint Ger Ag A method for supporting and / or intensifying a physical and / or chemical reaction and a reaction device for performing the method.
US9333471B2 (en) 2012-04-11 2016-05-10 STAT—Diagnostica & Innovation, S.L. Fluidically integrated magnetic bead beater
US20130273816A1 (en) * 2012-04-13 2013-10-17 Nano And Advanced Materials Institute Limited Automatic polishing device for surface finishing of complex-curved-profile parts
PL401326A1 (en) 2012-10-22 2014-04-28 Presto Spółka Z Ograniczoną Odpowiedzialnością Magnetic mill
PL401325A1 (en) 2012-10-22 2014-04-28 Presto Spółka Z Ograniczoną Odpowiedzialnością Magnetic mill
CN104903243A (en) * 2012-11-14 2015-09-09 南非大学 Method and apparatus for treating a fluid
US10639746B1 (en) 2014-06-20 2020-05-05 Apple Inc. Ceramic-based components having laser-etched markings
US20150375359A1 (en) * 2014-06-30 2015-12-31 General Electric Company Component surface finishing systems and methods
US9713865B2 (en) * 2015-06-02 2017-07-25 Apple Inc. Electromechanical surface texturing
US10144107B2 (en) * 2015-09-30 2018-12-04 Apple Inc. Ultrasonic polishing systems and methods of polishing brittle components for electronic devices
CN112783264A (en) 2019-11-11 2021-05-11 苹果公司 Biometric key including textured ceramic cover
US11113494B2 (en) 2019-11-11 2021-09-07 Apple Inc. Biometric key including a textured ceramic cover
EP4065260A4 (en) * 2019-11-27 2023-08-02 JBS Science Inc. Method and apparatus for mixing magnetic particles in liquid medium
CN111347295A (en) * 2020-03-27 2020-06-30 台州学院 Surface polishing device for inner container of pressure cooker
CN112692716B (en) * 2021-01-26 2022-10-28 山东理工大学 Inner surface magnetic field auxiliary finishing device and method based on controllable magnetic field
CN114161307A (en) * 2021-11-02 2022-03-11 世科工业设计沧州有限公司 Automatic cleaning equipment for surface of aluminum workpiece produced in workshop
CN114986376A (en) * 2022-06-16 2022-09-02 山东理工大学 Magnetic needle magnetic grinding machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735232A (en) * 1956-02-21 simjian
US2787854A (en) * 1955-11-18 1957-04-09 Reflectone Corp Method of treating an object
BE545179A (en) * 1956-01-03

Also Published As

Publication number Publication date
US3848363A (en) 1974-11-19
DE2408359B2 (en) 1977-10-20
FR2218165B1 (en) 1977-03-04
CA1002265A (en) 1976-12-28
DE2408359A1 (en) 1974-09-05
JPS49114193A (en) 1974-10-31
JPS532518B2 (en) 1978-01-28
FR2218165A1 (en) 1974-09-13
GB1456441A (en) 1976-11-24
IT1008866B (en) 1976-11-30

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8339 Ceased/non-payment of the annual fee