EP0024577B2 - Tambour oscillant pour le traitement continu de pièces au jet abrasif - Google Patents

Tambour oscillant pour le traitement continu de pièces au jet abrasif Download PDF

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Publication number
EP0024577B2
EP0024577B2 EP80104559A EP80104559A EP0024577B2 EP 0024577 B2 EP0024577 B2 EP 0024577B2 EP 80104559 A EP80104559 A EP 80104559A EP 80104559 A EP80104559 A EP 80104559A EP 0024577 B2 EP0024577 B2 EP 0024577B2
Authority
EP
European Patent Office
Prior art keywords
jacket
drum
workpieces
longitudinal direction
opening
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
EP80104559A
Other languages
German (de)
English (en)
Other versions
EP0024577B1 (fr
EP0024577A1 (fr
Inventor
Hans-Georg Ing.-Grad. Wodausch
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.)
Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
Original Assignee
Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6706597&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0024577(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag filed Critical Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
Priority to AT80104559T priority Critical patent/ATE2879T1/de
Publication of EP0024577A1 publication Critical patent/EP0024577A1/fr
Publication of EP0024577B1 publication Critical patent/EP0024577B1/fr
Application granted granted Critical
Publication of EP0024577B2 publication Critical patent/EP0024577B2/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/18—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions
    • B24C3/26—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by barrel cages, i.e. tumblers; Gimbal mountings therefor
    • B24C3/266—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by barrel cages, i.e. tumblers; Gimbal mountings therefor for continuously travelling workpieces

Definitions

  • the invention relates to a flow swivel drum, which is provided with an upper jacket opening, is inclined in the longitudinal direction and is pivotably mounted about its axis, for the continuous blasting of workpieces passing through the drum in the longitudinal direction with the aid of centrifugal wheels.
  • Such a flow swivel drum as is known for example from DE-A1-24 24 086, is continuously swiveled between two limit positions during the blasting process.
  • the workpieces traveling through the flow swivel drum should not only slide longitudinally along the drum, but also rotate around themselves, "roll over” so that they are struck on their entire surface by the blasting agent which is blown through the jacket opening by the centrifugal wheels the drum is blasted.
  • Practice shows that this turning around itself does not take place to the desired extent on all workpieces.
  • a cleaning machine for blasting workpieces is known from DD-A-34668.
  • an oscillating trough is provided which is closed on the end faces and has driver strips on the inside of the jacket.
  • a drive produces a reciprocating movement of the trough transversely to the longitudinal axis, the ratio of the return and return times being approximately 1: 5.
  • the workpieces should be carried along with the slow movement, with the fast backward movement they should remain in place.
  • the workpieces should consequently perform a running movement transverse to the longitudinal axis of the trough during the trough movement, roll over after a certain pivoting movement and fall back into the trough. From above, the workpieces are blasted with an abrasive, e.g. B. irradiated by means of a centrifugal wheel.
  • the invention solves the problem, using the principle known from the plastering machine to use driving bars to equip a flow-swivel drum of the type mentioned with a device for rotating the workpieces located in the drum to inevitably bring about itself.
  • the workpieces sliding on the inside of the drum shell during its pivoting movement in the axial and in the circumferential direction can only slide in the circumferential direction until they reach the turning stage.
  • the workpieces are initially held longer than the swivel angle of the drum shell, especially on the steep leg surface; until, when the swivel angle is increased further, the workpieces roll over, which then rest against the inside of the swivel drum with another surface.
  • the part of the workpiece surface that faces the opening in the jacket and thus the blast wheels and is blasted changes at the turning stage at the latest every second swivel of the flow swivel drum.
  • the flow swivel drum shown in the figures has an inlet drum 1 in the longitudinal direction, followed by a blasting drum 2 and then a blasting drum 2 and then a sieve drum 3.
  • the flow swivel drum is - which is not shown in the drawing - inclined in the longitudinal direction, so that workpieces are naturally conveyed from the entrance of the inlet drum 1 to the outlet of the screen drum 3 when the flow swivel drum is pivoted.
  • the inlet drum 1 is narrowed towards the feed side in the manner of a funnel 4.
  • the inlet drum 1 has a flange ring 5 on the end face facing the blasting drum 2.
  • the screening drum 3 also has a flange ring 6 on the end facing the jet drum 2; followed by a support ring 7 towards the outlet side.
  • the bottom of the screening drum 3 is predominantly designed in the manner of a screen 8.
  • a race 11 is provided on the outside of its jacket 10 on each end of the blasting drum 2.
  • the race 11 on one end face is screwed to the flange ring 5 of the inlet drum 1, the other end face to the flange ring 6 with the sieve drum 3 and the associated support ring 7 by means of bolts 12.
  • the bottom of the blasting drum 2 is provided with longitudinal openings 13.
  • a casing opening 14 is left open in the jacket 10, through which blasting media emerging from centrifugal wheels strike the workpieces transported, pivoted and turned in the blasting drum 2.
  • the jacket opening 14 is reinforced laterally in the region of its two side edges by an I-beam 15 each. Other reinforcements are possible.
  • the jacket 10 is provided on its side opposite the jacket opening 14 with a turning stage 16.
  • the turning stage 16 extends in the exemplary embodiment between the inner surfaces of the races 11. It can extend over the entire length of the blasting drum 2.
  • the decisive factor is that when the jet drum 2 is pivoted to the turning stage, when the pivoting angle is increased, the workpieces do not simply slide further along the inner surface of the jacket 10, but rather roll over, 'so that another part of its surface faces the jacket opening 14, which ensures uniform irradiation of the workpieces.
  • the turning stage 16 is formed in the exemplary embodiment as an essentially V-shaped channel pressed outwards into the jacket 10.
  • One leg surface 17 of the turning stage 16 merges tangentially into the jacket 10; the other leg surface 18, which is substantially perpendicular to the first leg surface 17, merges with the jacket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Claims (2)

1. Tambour pivotant en continu, muni d'une ouverture (14) à la partie supérieure de son enveloppe, incliné par rapport à l'horizontale et pivotant autour de son axe, pour le sablage continu par turbines de grenaillage des pièces d'usinage qui le traversent dans le sens de la longueur, caractérisé en ce que l'enveloppe (10) est pourvue, sur le côté opposé à l'ouverture (14), d'une zone de renversement (16), s'étendant sur toute la longueur de l'enveloppe et conçue en forme de V, repoussé dans l'enveloppe (10) vers l'extérieur, dont le premier côté (17) est tangent à l'enveloppe (10) et le second (18), perpendiculaire au premier, forme un coude avec cette dernière (10).
2. Tambour pivotant en continu selon la revendication 1, caractérisé en ce que le coude formé par le second côté du V (18) avec l'enveloppe (10) est situé dans le plan de symétrie longitudinal de cette dernière.
EP80104559A 1979-08-16 1980-08-01 Tambour oscillant pour le traitement continu de pièces au jet abrasif Expired EP0024577B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104559T ATE2879T1 (de) 1979-08-16 1980-08-01 Fliess-schwenktrommel fuer das kontinuierliche strahlen von werkstuecken.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19797923277U DE7923277U1 (de) 1979-08-16 1979-08-16 Fliess-schwenktrommel fuer das kontinuierliche strahlen von werkstuecken
DE7923277U 1979-08-16

Publications (3)

Publication Number Publication Date
EP0024577A1 EP0024577A1 (fr) 1981-03-11
EP0024577B1 EP0024577B1 (fr) 1983-03-30
EP0024577B2 true EP0024577B2 (fr) 1989-01-11

Family

ID=6706597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104559A Expired EP0024577B2 (fr) 1979-08-16 1980-08-01 Tambour oscillant pour le traitement continu de pièces au jet abrasif

Country Status (3)

Country Link
EP (1) EP0024577B2 (fr)
AT (1) ATE2879T1 (fr)
DE (1) DE7923277U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7923277U1 (de) * 1979-08-16 1979-11-29 Maschinen- U. Werkzeugfabrik Kabel Vogel & Schemmann Ag, 5800 Hagen Fliess-schwenktrommel fuer das kontinuierliche strahlen von werkstuecken
CH683678A5 (de) * 1991-08-13 1994-04-29 Fischer Georg Giessereianlagen Schleuderstrahlmaschine.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD34667A (fr) *
US2116160A (en) * 1935-10-22 1938-05-03 Pangborn Corp Abrading apparatus
US2440819A (en) * 1944-03-09 1948-05-04 Pangborn Corp Tumbling mill
NL156945B (nl) * 1972-09-29 1978-06-15 Expert Nv Inrichting voor het koelen en drogen van vormzand en voor het koelen van gietstukken.
DE2424086A1 (de) * 1974-05-17 1975-11-27 Vogel & Schemmann Masch Fliesstrommel zur kontinuierlichen bestrahlung von gusstuecken mit hilfe von schleuderraedern
DE7923277U1 (de) * 1979-08-16 1979-11-29 Maschinen- U. Werkzeugfabrik Kabel Vogel & Schemmann Ag, 5800 Hagen Fliess-schwenktrommel fuer das kontinuierliche strahlen von werkstuecken

Also Published As

Publication number Publication date
EP0024577B1 (fr) 1983-03-30
EP0024577A1 (fr) 1981-03-11
ATE2879T1 (de) 1983-04-15
DE7923277U1 (de) 1979-11-29

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