EP0321834A2 - Machine de tribo-finition centrifuge - Google Patents

Machine de tribo-finition centrifuge Download PDF

Info

Publication number
EP0321834A2
EP0321834A2 EP88120803A EP88120803A EP0321834A2 EP 0321834 A2 EP0321834 A2 EP 0321834A2 EP 88120803 A EP88120803 A EP 88120803A EP 88120803 A EP88120803 A EP 88120803A EP 0321834 A2 EP0321834 A2 EP 0321834A2
Authority
EP
European Patent Office
Prior art keywords
container
grinding machine
machine according
centrifugal
turntable
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Withdrawn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
EP88120803A
Other languages
German (de)
English (en)
Other versions
EP0321834A3 (fr
Inventor
Karl Temme
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.)
Carl Kurt Walther GmbH and Co KG
Original Assignee
Carl Kurt Walther GmbH and Co KG
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 Carl Kurt Walther GmbH and Co KG filed Critical Carl Kurt Walther GmbH and Co KG
Publication of EP0321834A2 publication Critical patent/EP0321834A2/fr
Publication of EP0321834A3 publication Critical patent/EP0321834A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines 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
    • B24B31/10—Machines 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
    • B24B31/108—Machines 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 involving a sectioned bowl, one part of which, e.g. its wall, is stationary and the other part of which is moved, e.g. rotated

Definitions

  • the invention relates to a centrifugal mass finishing machine according to the preamble of claim 1.
  • a slide grinding machine of the aforementioned type is known from DE-OS 3 228 658, the container being pot-shaped with a vertically aligned pot wall running parallel to the turntable axis.
  • the turntable represents the bottom of the pot.
  • the rotating turntable in the container creates an annular bead that executes a spiral movement, during which movement the grinding bodies on the workpieces carry out the surface treatment.
  • the container is filled and emptied via the pot opening. For filling, the container must be in its vertical position with the pot opening facing upwards. The container is emptied by swiveling it, the entire container being tilted while simultaneously changing the inclination of the turntable.
  • the invention has for its object to provide a centrifugal vibratory grinding machine of the type in question in a technically simple manner so that the overall efficiency is increased.
  • a centrifugal mass finishing machine of the type in question is created, which is characterized by an increased overall efficiency.
  • this refers to the grinding performance and, on the other hand, to particularly short loading and unloading times while increasing the economy of the centrifugal mass finishing machine.
  • the horizontal arrangement of the container closed at both ends provides increased processing power, as a result of which the duration of the contents of the container - ie workpieces and grinding wheels - can be reduced in the container. It is understandable that the degree of filling of the container is so high that the contents of the container are well grasped by the turntable, which conveys the corresponding circulation to the contents of the container.
  • the container has a circular cross section. Good circulation is associated with this.
  • the container wall can either be aligned parallel to the longitudinal axis of the container or can be bulbous.
  • the corresponding closure element can be a flap or slide. After a corresponding dwell time of the container contents, the closure element is to be shifted into the open position, so that the container contents leave the container due to gravity.
  • An alternative mode of operation is possible in that the workpieces to be machined are fastened to workpiece holders and these are immersed into the machining medium through the filling opening. After the surface treatment, the workpieces leave the container in the same way.
  • it With regard to short-term loading and emptying of the container, it can be provided that it is rotatably mounted about a central, essentially horizontal axis. The corresponding positions of the container can be brought about with little drive effort.
  • the rotatably mounted container assumes its filling or working position when the filling opening points upwards and that in the container emptying position the container is rotated such that the filling opening points downward.
  • the loading takes place accordingly with the filling opening pointing upwards.
  • the container then only has to be rotated by approximately 180 °, so that emptying takes place downwards.
  • the processing performance can be increased even further in that both closure walls are designed as turntables. Therefore, impulses are exerted on the container contents from both sides of the container, which lead to a particularly high grinding performance.
  • Variations with regard to the grinding performance can be brought about in that the turntables are driven in the same sense or in opposite directions to one another. This can be done either at the same or a different speed.
  • rotary plate engages with its peripheral edge in the container in such a way that the gap formed between these two parts towards the center of the container runs at a slight angle to the rotary plate axis.
  • a treatment agent supply opening is arranged adjacent to the filling opening, as seen in the container circumferential direction.
  • the filling opening extends essentially over the entire length of the container.
  • this proves to be advantageous when emptying the container, since there is complete discharge of the container contents with the filling opening pointing downward.
  • the centrifugal slide grinding machine designated as a whole by the reference number 1, has two vertically aligned cheeks 2, 3 which are arranged parallel to one another and receive a container 4 which extends in a lying arrangement in its upper region.
  • the latter has a circular cross section and is cylindrical.
  • the container is closed at both ends.
  • the two corresponding closure walls are designed as turntables 5, 6.
  • Each turntable 5, 6 is rotatably seated on an axis 7 which ends within the base 8 of the plate. This means that there is no continuous axis passing through the container.
  • the plate base 8 extends at right angles to the turntable axis 7 and merges via a curvature section 9 into a plate edge 10 which is so inclined to the turntable axis 7 that the plate edge 10 rises towards the center of the container.
  • the turntable 5, 6 itself consists of resistant material such as polyurethane. In order to make it resistant to bending, inserts 11 can be provided in it.
  • the container 4 is provided with an abrasion-resistant plastic lining 12, which continues beyond the end-side container separation points 13 into conically widening lining sections 14.
  • the plate 5, 6 protrudes with its peripheral edge 15 into it, in such a way that the gap 16 formed between the turntable 5 or 6 and the container diverges towards the center of the container at a small angle to the turntable axis 7 runs.
  • the corresponding angle alpha indicated in FIG. 5 is approximately between 10 and 30 °.
  • the container 4 In the area of each separation point 13, the container 4 is provided with two abutting flanges 17, 18 through which fastening screws 19 pass.
  • the section A of the container 4 carrying the flange 18 is pot-shaped. Extends at the level of the pot edge of section A. the liner section 14.
  • the pan base 20 is penetrated by the turntable axis 7 and contains a bearing 21 for carrying out the turntable axis 7.
  • the bearing 21 in turn is rotatably seated in a support bearing 22 of the cheek 2 or 3. This makes it possible for the turntable 5, 6 rotates while the container 4 remains in a rest position.
  • the free ends of the turntable axles 7 are equipped with pulleys 23 which can be driven by means of V-belts 24 via electric motors 25, 26.
  • the turntables can be easily driven in the same direction or in opposite directions to each other.
  • cup-shaped sections A which support the bearings 21 and thus also serve to hold the turntables 5, 6, are identical to one another, which contributes to a simplification of production. For example, they can be assigned to containers 4 of different lengths.
  • the container 4 which extends in a lying arrangement, has a filling opening 27 in the area between the two inner flanges 17 on the jacket wall, which extends essentially over the entire length of the container 4.
  • the filler opening which is approximately rectangular in plan, is flanked on the edge by an outwardly directed collar 28.
  • the filling opening 27 points upwards.
  • the container emptying position the container 4 is then rotated so that the filling opening 27 points downward. This means that the container is rotated about 180 ° for this purpose.
  • the direction of rotation is indicated by the arrow x in FIG. 6.
  • a corresponding rotation of the container can be dispensed with for emptying the container.
  • the container procure ter so that it forms a closable emptying opening in the lower region of its jacket wall.
  • the filling opening 27, as seen in the container circumferential direction, is adjacent to a treatment agent supply opening 29. This can also preferably extend over the length of the container 4 and is used to add liquid treatment agent.
  • the container content consisting of workpieces 30 and grinding bodies 31 is fed to container 4 via a storage container 32.
  • the reservoir 32 is fixed in the upper region of the cheeks 2, 3.
  • the storage container 32 tapers downwards towards a funnel which can be closed at the lower end and which can be brought into alignment with the filling opening 27.
  • the emptying process of the storage container 32 is favored by a vibration generator 33.
  • the storage container 32 rests on spring elements 34 of the cheeks 2, 3.
  • the quantity of grinding wheels 31 and workpieces 30 that can be accommodated by the storage container 32 corresponds approximately to one batch of the container 4.
  • a sieve device 35 Below the container 4 there is a sieve device 35, the inlet opening 36 of which is assigned an inclined baffle plate 37, which directs the contents of the container in the direction of the inlet opening 36 when the container 4 is rotated into the emptying position.
  • the turntables 5, 6 are driven in such a way that they circulate the contents of the container to produce an intensive circulating movement which leads to a short-term surface treatment.
  • the speed of the turntables can also be varied with respect to one another, so that different machining requirements are met Is taken into account.
  • the turntables are shut down. This is followed by the rotation of the container 4 in the direction of the arrow x by approximately 180 °, so that the contents of the container, as mentioned above, reach the discharge path 38 of the screening device 35.
  • the discharge path 38 is preferably divided into three zones 39, 40, 41. Zone 39 is not perforated.
  • the container contents fall onto this when the container 4 is brought into the emptying position according to FIG. 7.
  • the zone 40 adjoining the zone 39 serves for the passage of water, mud and undersize, that is to say abrasive bodies which have become too small due to wear.
  • the contents of the container then overflow into zone 41, where the grinding bodies 31 are separated from the workpieces 30.
  • the grinding wheels 31 fall onto a chute 42 and are guided to the lower end of a return chute 43.
  • the contents of the container may be exposed to showers 44 as the zones 39, 41 pass through the screening device. If necessary, showers (not shown) can be provided which spray liquid into the container 4 in the emptying position in order to clean it and to accelerate the emptying process.
  • the workpieces 30 leave the screen section in the direction of the arrow y.
  • the sieve device 35 is assigned two vibration exciters 45, which generate a delivery component in the direction of the arrow y.
  • the return conveyor trough 43 which is also exposed to an oscillation drive 46, guides the grinding media into a grinding media container 48 carried by a conveying device 47. This also contains a compartment for a workpiece container 49.
  • the container 4 is again in its filling or To turn the working position.
  • the corresponding batch of workpieces and grinding wheels can then be introduced into the container 4 from the storage container 32.
  • these can be moved together with a loaded workpiece container 49 via the conveyor 47 into the dot-dash position according to FIGS. 1 and 2, so that the workpieces and grinding bodies get into the storage container. Since the container 4 carries out the surface treatment while the sieve device 35 is working and the reservoir 32 is being filled, uneconomical downtimes can be reduced to a minimum.
  • the grinding wheel container 48 with the workpiece container 49 returns to the starting position, so that the next continuous process can take place, as was described above.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP88120803A 1987-12-19 1988-12-13 Machine de tribo-finition centrifuge Withdrawn EP0321834A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873743161 DE3743161A1 (de) 1987-12-19 1987-12-19 Fliehkraft-gleitschleifmaschine
DE3743161 1987-12-19

Publications (2)

Publication Number Publication Date
EP0321834A2 true EP0321834A2 (fr) 1989-06-28
EP0321834A3 EP0321834A3 (fr) 1989-12-20

Family

ID=6343021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88120803A Withdrawn EP0321834A3 (fr) 1987-12-19 1988-12-13 Machine de tribo-finition centrifuge

Country Status (4)

Country Link
US (1) US4937981A (fr)
EP (1) EP0321834A3 (fr)
JP (1) JPH01289654A (fr)
DE (1) DE3743161A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276998A (en) * 1992-06-08 1994-01-11 Joen Anton P Method and apparatus for washing and cleaning a workpiece
US6261154B1 (en) 1998-08-25 2001-07-17 Mceneny Jeffrey William Method and apparatus for media finishing

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR508602A (fr) * 1919-09-15 1920-10-19 Clay Et Pierron Machine à polir
US3030746A (en) * 1959-10-15 1962-04-24 Bausch & Lomb Method of grinding and polishing optical glass
DE2219039A1 (de) * 1972-04-19 1973-10-31 Manfrid Dreher Kg Apparatebau Bedienungseinrichtung fuer trommelanlagen
US4096666A (en) * 1976-02-09 1978-06-27 Osro Limited Rotary seals
SU580099A2 (ru) * 1976-04-16 1977-11-15 Рижский Ордена Трудового Красного Знамени Политехнический Институт Устройство дл центробежной отделки изделий
US4177608A (en) * 1978-01-16 1979-12-11 Roto-Finish Company, Inc. Finishing apparatus embodying improved seal and method
SU861027A2 (ru) * 1980-01-10 1981-09-07 Уфимский Ордена "Знак Почета" Приборостроительный Завод Им. В.И.Ленина Устройство дл обработки поверхностей деталей
DE3228658C2 (de) * 1982-07-31 1984-11-08 Carl Kurt Walther Gmbh & Co Kg, 5600 Wuppertal Fliehkraft-Gleitschleifmaschine
US4620394A (en) * 1984-05-12 1986-11-04 Carl Kurt Walther Gmbh & Co. Kg Device for slide grinding
US4551949A (en) * 1984-06-13 1985-11-12 Iolab Corporation Method and apparatus for dissipating static charge from an abrasive tumbling operation
US4709507A (en) * 1985-09-19 1987-12-01 General Kinematics Corporation Tumbling apparatus
JPS6299069A (ja) * 1985-10-23 1987-05-08 Toshiba Corp 面取り装置

Also Published As

Publication number Publication date
US4937981A (en) 1990-07-03
DE3743161A1 (de) 1989-06-29
EP0321834A3 (fr) 1989-12-20
JPH01289654A (ja) 1989-11-21

Similar Documents

Publication Publication Date Title
DE2425727C3 (de) Vorrichtung zum Behandeln von Stoffen, insbesondere zum Mischen von körnigen, pulverförmigen, pastenförmigen und/oder flüssigen Massen
DE1652173A1 (de) Vibrations-Schleifmuehle
DE3621050C2 (de) Schwingmühle
DE1047993B (de) Federnd gelagerte Einrichtung zum Putzen von Werkstuecken, insbesondere Rohgussstuecken
CH467651A (de) Vibrator zum Entgraten, Glätten, Polieren und Mischen
DE3819532C2 (fr)
EP0321834A2 (fr) Machine de tribo-finition centrifuge
EP0712688A2 (fr) Machine à ébavurer, satiner et polir avec entraînement à bande
AT376388B (de) Vorrichtung zur vibrationsbearbeitung der oberflaeche von werkstuecken
EP0391213B1 (fr) Réservoir de stockage, notamment pour appareils oscillants d'alimentation
CH342451A (de) Verfahren zum Mischen und Zerkleinern von pulverförmigen und körnigen Stoffen und Maschine zur Durchführung des Verfahrens
DE2043608C2 (de) Tellermischer
DE2212251B2 (de) Vorrichtung zum Zerkleinern von in Rohkies enthaltenen, klumpenförmigen Fremdstoffen
DE3423675A1 (de) Fliehkraft-gleitschleifmaschine
DE2610625A1 (de) Vorrichtung zur behandlung von werkstuecken in baedern
DE2152453A1 (de) Verfahren und vorrichtung zur oberflaechenbehandlung von werkstuecken
DE3741319A1 (de) Vorrichtung zum ausrichten und zufuehren von gegenstaenden
DE3538909C2 (fr)
DE3417749C2 (de) Gleitschleifmaschine
DE2616485A1 (de) Vorrichtung zur behandlung von werkstuecken durch vibrierende bewegung
DE2004544C3 (de) Vorrichtung zum Reinigen von Dreh-, Stanz-, Frästeilen u.a. Metallteilen
DE3526222A1 (de) Austragvorrichtung fuer rundsilos
DE3021771A1 (de) Behaelter zum bearbeiten von werkstuecken
DE19529872C2 (de) Freifallmischer für das gleichzeitige Mischen von Komponenten in mehreren, frei wählbaren, geschlossenen, fest montierten oder wechselbaren Behältern
DE3442996C2 (fr)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): CH DE FR GB LI NL

17P Request for examination filed

Effective date: 19900105

17Q First examination report despatched

Effective date: 19910116

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19910222

R18W Application withdrawn (corrected)

Effective date: 19910222