EP0176007A1 - Machine de finissage centrifuge - Google Patents

Machine de finissage centrifuge Download PDF

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Publication number
EP0176007A1
EP0176007A1 EP85111512A EP85111512A EP0176007A1 EP 0176007 A1 EP0176007 A1 EP 0176007A1 EP 85111512 A EP85111512 A EP 85111512A EP 85111512 A EP85111512 A EP 85111512A EP 0176007 A1 EP0176007 A1 EP 0176007A1
Authority
EP
European Patent Office
Prior art keywords
container
grinding machine
machine according
plate
centrifugal
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Withdrawn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
EP85111512A
Other languages
German (de)
English (en)
Inventor
Norbert Dipl.-Ing. Eichenberg (FH)
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.)
Rosler Gleitschlifftechnik Maschinenbau und Technische Keramik GmbH
Original Assignee
Rosler Gleitschlifftechnik Maschinenbau und Technische Keramik 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 DE19843433514 external-priority patent/DE3433514A1/de
Priority claimed from DE19853526861 external-priority patent/DE3526861A1/de
Application filed by Rosler Gleitschlifftechnik Maschinenbau und Technische Keramik GmbH filed Critical Rosler Gleitschlifftechnik Maschinenbau und Technische Keramik GmbH
Publication of EP0176007A1 publication Critical patent/EP0176007A1/fr
Withdrawn legal-status Critical Current

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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 centrifugal grinding machine with a pivotally mounted container which is vertical during operation and a base designed as a rotary plate.
  • the aim of the invention is to provide a centrifugal grinding machine of the type mentioned at the outset, in which it is reliably ensured that even small or large flat or elongated parts do not adhere to the inner walls of the container and thus always remain in the grinding cycle.
  • the invention provides that the container rotation plate arrangement can be pivoted back and forth about at least one transverse axis running transversely to the axis of rotation of the rotation plate.
  • the container rotation plate arrangement is additionally given a pendulum movement about at least one transverse axis, as a result of which the particles adhering to the walls periodically come into a partial upside-down position and, as a result of the action of gravity and abutting other abrasive parts, are more easily detached from the wall or do not get caught at all.
  • the pendulum movement takes place about two perpendicular transverse axes.
  • the bowl-shaped design of the surface of the rotary plate facing the inside of the container is particularly advantageous.
  • the bowl-shaped design proves to be particularly advantageous in connection with the pendulum movement during the grinding operation, because as a result the different areas of the bowl-shaped surface are constantly in different steep positions relative to the horizontal come, which is associated with an improvement in the grinding effect and a reduction in the risk of particles sticking.
  • the combination of the oscillating suspension in connection with the bowl-shaped rotation plate thus proves to be particularly advantageous, the arrangement of wear elements and / or sealing lips bridging the annular gap on the circumference of the rotary plate further reducing the risk of particles sticking.
  • Both the wear ring and the plate coating must be replaced from time to time, with the wear ring generally having to be replaced in even shorter periods than the plate coating.
  • the plate In order to avoid the runout resulting from the deformations caused by the heating, the plate must be centered in a complex manner after each new coating and balanced by machining. These are jobs that are only carried out in specialized companies can be carried out and are associated with the corresponding costs. But not only the adjustment and balancing work require special measures, but also the pouring of the plastic can only be carried out if special machines are available, which as a rule are not even available to the machine manufacturer.
  • driver elements are also particularly advantageous to insert driver elements into the covering in a form-fitting manner in corresponding recesses and to fix them in their end position, since in this way several advantages are achieved at the same time, namely the avoidance of essentially horizontal gaps between the carriers and the covering, and an additional covering fixing and the creation of inexpensive, easily changeable driver elements.
  • driver elements can easily be cut from rod material in the required length.
  • the recessed fixation of these drivers which means the avoidance of essentially horizontal gaps between the driver and the covering, also ensures that even very small and flat parts in the driver area are no longer held in an undesirable manner.
  • the pendulum drive of the shafts 16, 17 is carried out by a drive device, not shown, which e.g. can work with a crank mechanism.
  • the container rotation plate arrangement 11, 12 is preferably additionally pivotable about a further transverse axis 15 which is perpendicular to the axis 14, the suspension being gimbal-like.
  • a metal wear ring 20 with an upwardly widening conical outer surface is inserted into the circumference of the rotary plate 12 and limits the annular gap 18 between the rotary plate 12 and the container 11.
  • Radially directly opposite the metal wear ring 20 there is also a metal wear ring 21 with an inner circumferential surface that widens conically in the bottom ring region 11 'of the container 11, which is angled approximately horizontally, which delimits the annular gap 18 radially on the outside.
  • the metal wear ring 21 continues radially outwards into a flat annular disk 21 ′, which is fastened to the lower end face of the container 11.
  • annular sealing lip 19 which preferably consists of polyurethane, is sunk on the outer circumference of the rotary plate 12, which bridges the annular gap 18 to the bottom annular region 11 'of the container 11 and thus the penetration of particles into the annular gap 18, particularly in the case of the occurring pendulum movements effectively prevented during operation.
  • Fig. 4 shows a rotary plate 12 which consists of a base plate 12 ', e.g. consists of steel with a bowl-shaped surface 22. Ring-shaped wear elements 23 are fastened to the base plate 12 ′′ on the outer circumference of the surface 22.
  • the inclination of the surface 22, in particular a spherical cutout, in the region of the peripheral edge relative to the horizontal can be 20 to 45 and in particular 30 °.
  • the annular gap 18 adjoins the outer circumference of the rotary plate 12 to form the container 11 (not shown), which, like in the previous exemplary embodiments, is suspended together with the rotary plate 12 in an oscillating manner about the transverse axes 15 and 16, respectively.
  • pressurized water can be injected from below through the annular gap 18.
  • the base plate 12 ' is covered with a plastic covering 24 in the form of a polyurethane layer 24.
  • the outer circumference of the plastic covering 24 is formed in the shape of a truncated cone radially on the inside, the cone tapering from bottom to top, and is overlapped by complementarily shaped surfaces of the closing elements 23.
  • the wear elements 23 By fixing the wear elements 23, the outer edge of the covering 24 is clamped in this way. This provides additional security for the fastening of the covering, particularly in the important plate edge area.
  • driver elements 28 in the form of rod-shaped or rod-shaped sections are used according to the invention, which are positively inserted or driven into corresponding recesses 26 of the covering 24.
  • the holding elements 27 can for example consist of threaded screws. This arrangement of the drivers brings advantages in terms of function and also advantages in terms of replacement.
  • the main functional advantage is that gaps located in the covering plane are avoided, into which small parts penetrate and in which these small parts can be held in an undesirable manner, in particular when the arrangement oscillates about the transverse axes 15, 16 during the grinding operation.
  • the essential advantage is achieved that the replacement can be carried out quickly and easily by simply pulling off the rod sections, with no disassembly of the plate or other special measures being necessary.
  • the covering 24 has to be changed, then it is important that in the embodiment of the base plate 12 'according to the invention there are several penetration openings 29 distributed over the circumference.
  • the covering 24 can be loosened from the base plate 12 'to such an extent that intervention and complete removal is possible without problems. No heating of the base plate 12 'is required, and there are no other loads on the base plate 12' which could lead to a deformation of the base plate 12 'or a decentration.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP85111512A 1984-09-12 1985-09-12 Machine de finissage centrifuge Withdrawn EP0176007A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3433514 1984-09-12
DE19843433514 DE3433514A1 (de) 1984-09-12 1984-09-12 Fliehkraftschleifmaschine
DE19853526861 DE3526861A1 (de) 1985-07-26 1985-07-26 Telleranordnung fuer fliehkraft-gleitschleifmaschinen
DE3526861 1985-07-26

Publications (1)

Publication Number Publication Date
EP0176007A1 true EP0176007A1 (fr) 1986-04-02

Family

ID=25824665

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85111512A Withdrawn EP0176007A1 (fr) 1984-09-12 1985-09-12 Machine de finissage centrifuge

Country Status (1)

Country Link
EP (1) EP0176007A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625953A1 (de) * 1986-07-31 1988-02-11 Roesler Gleitschlifftech Masch Fliehkraft-gleitschliffmaschine
CN105751056A (zh) * 2014-12-18 2016-07-13 驰马拉链（安徽）有限公司 一种用于拉头的去毛刺装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1155150A (en) * 1914-03-25 1915-09-28 John Henderson Tumbling-barrel.
DE7429283U (de) * 1974-08-30 1975-05-07 Spaleck M Kg Vorrichtung für die Oberflächenbehandlung von Massenteilen
DE2705445A1 (de) * 1976-02-09 1977-08-11 Osro Ltd Maschine zum oberflaechenbehandeln, wie schleifen oder polieren, von werkstuecken
DE3228658A1 (de) * 1982-07-31 1984-02-02 Carl Kurt Walther Gmbh & Co Kg, 5600 Wuppertal Behaelter zum gleitschleifen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1155150A (en) * 1914-03-25 1915-09-28 John Henderson Tumbling-barrel.
DE7429283U (de) * 1974-08-30 1975-05-07 Spaleck M Kg Vorrichtung für die Oberflächenbehandlung von Massenteilen
DE2705445A1 (de) * 1976-02-09 1977-08-11 Osro Ltd Maschine zum oberflaechenbehandeln, wie schleifen oder polieren, von werkstuecken
DE3228658A1 (de) * 1982-07-31 1984-02-02 Carl Kurt Walther Gmbh & Co Kg, 5600 Wuppertal Behaelter zum gleitschleifen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3625953A1 (de) * 1986-07-31 1988-02-11 Roesler Gleitschlifftech Masch Fliehkraft-gleitschliffmaschine
CN105751056A (zh) * 2014-12-18 2016-07-13 驰马拉链（安徽）有限公司 一种用于拉头的去毛刺装置

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Inventor name: EICHENBERG, NORBERT, DIPL.-ING. (FH)