EP0023980B1 - Dispositif pour le sablage de la surface d'une pièce à travailler - Google Patents

Dispositif pour le sablage de la surface d'une pièce à travailler Download PDF

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Publication number
EP0023980B1
EP0023980B1 EP80104086A EP80104086A EP0023980B1 EP 0023980 B1 EP0023980 B1 EP 0023980B1 EP 80104086 A EP80104086 A EP 80104086A EP 80104086 A EP80104086 A EP 80104086A EP 0023980 B1 EP0023980 B1 EP 0023980B1
Authority
EP
European Patent Office
Prior art keywords
blasting
centrifugal wheel
supply tubes
workpiece
area
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
EP80104086A
Other languages
German (de)
English (en)
Other versions
EP0023980A3 (en
EP0023980A2 (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
Application filed by Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag filed Critical Maschinen- und Werkzeugfabrik Kabel Vogel & Schemmann Ag
Priority to AT80104086T priority Critical patent/ATE4299T1/de
Publication of EP0023980A2 publication Critical patent/EP0023980A2/fr
Publication of EP0023980A3 publication Critical patent/EP0023980A3/de
Application granted granted Critical
Publication of EP0023980B1 publication Critical patent/EP0023980B1/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
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/06—Impeller wheels; Rotor blades therefor

Definitions

  • the invention relates to a device for blasting the surface of a workpiece with a centrifugal wheel and with at least two feed pipes for an abrasive, which open off-center essentially perpendicular to the centrifugal wheel.
  • blasting is a machining process in which solid particles, rarely liquid without additives, are thrown onto the surface of a workpiece.
  • Cleaning and descaling blasting, rough or smooth blasting or shot blasting to increase the fatigue strength are known.
  • Blasting is carried out with the aid of centrifugal wheels, which are known as single-disc or double-disc wheels with two to eight blades.
  • the abrasive is fed by gravity, pneumatically or mechanically accelerated.
  • the radial blade exit tangent is aimed for.
  • the jet can be adjusted by shifting the inlet mouth when the inlet pipe is eccentrically arranged vertically on the centrifugal wheel (cf. »Betriebshuette « Volume II Manufacturing Machines 1964 pp. 449/450).
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, solves the problem of creating a centrifugal device which makes it possible to achieve different beam ranges which are adjustable in size and position, while keeping the outlay to a minimum.
  • the blasting agent when only one of the feed pipes is switched on, the blasting agent reaches the workpiece in a conventional manner, also called blasting material, and blasts there in a blasting area of a certain position, length and width.
  • the beam area depends on u. a. of the blasting media itself, its throughput, the design and speed of the centrifugal wheel and finally the point at which the blasting media hits the running centrifugal wheel. If you switch on the second feed pipe instead of the first, the blasting medium, throughput and speed of the centrifugal wheel, assuming that the blasting wheel remains the same, results in a different blasting area.
  • the angle between the mouth of the first and the second feed pipe in relation to the direction of rotation of the centrifugal wheel is now chosen so that - apart from a transition area in which the jet areas overlap - the jet areas directly adjoin one another. This practically doubles the length of the beam area.
  • one of the two jet areas can be selected.
  • the connection or disconnection can take place during operation of the blasting device.
  • the number of blasting areas and thus the total length of the possible blasting area can be further increased by using more than two feed pipes.
  • the feed pipes can open out on the same side as on opposite sides of the centrifugal wheel.
  • the easiest way to get an overview of the blasting areas and the blasting effect achieved is when all inlet pipes open at the same distance from the axis of rotation of the centrifugal wheel.
  • the location of two or more blasting agent feed pipes in relation to a centrifugal wheel in a device operating according to the open centrifugal wheel principle allows the blasting pattern to be selected together with the blasting agent throughput.
  • the blasting agent pipes can act on the centrifugal wheel on the left or right or on both sides.
  • blasting medium 4 is acted upon from inflow tubes 1, 2 by a centrifugal wheel 4 rotating on its shaft 3.
  • the inlet pipes 1, 2 open in the direction of rotation of the centrifugal wheel 4 at an angle offset on the same side of the centrifugal wheel at substantially the same distance from the shaft 3.
  • the blasting agent 11 only emerging from the inlet pipe 1 then generates a blasting area at a distance A from the shaft 3 on a blasting surface the width B and the length SL1.
  • the position of the blasting area depends, among other things, on the position of the mouth of the inlet pipe 1 on the centrifugal wheel 4.
  • the blasting area begins at a distance x from the shaft 3.
  • the inlet pipe 2 opens out at an angle in the direction of rotation of the centrifugal wheel 4.
  • the blasting medium 112 produces a distance A from the shaft 3 Beam area of width B and length SL2.
  • Matching blasting media and the same speed of the same centrifugal wheel 4, provided SL1 SL2 applies.
  • the blasting area generated by the blasting medium 112 begins at a distance y from the shaft 3, specifically with reference to the shaft 3 as a reference point in the opposite direction to the distance x. If both inlet pipes 1 and 2 are switched on, the beam areas overlap.
  • the result is an overall beam area of width B and length SL total, which is equal to the sum of lengths SL1 and SL2 of the individual beam areas, minus an overlap area Ü.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Catching Or Destruction (AREA)
  • Nozzles (AREA)
  • Other Air-Conditioning Systems (AREA)

Claims (3)

1. Dispositif de grenaillage de la surface d'une pièce, comportant une turbine (4) et deux conduites (1, 2) au moins d'arrivée des grenailles, qui débouchent essentiellement perpendiculairement et excentriquement sur la turbine (4), caractérisé en ce que le choix de l'angle formé entre l'ouverture de la première (1) et de la seconde (2) conduite, par rapport au sens de rotation de la turbine (4), permet d'obtenir des zones de grenaillage de dimension et position différentes et de limites réglables, et en ce que les conduites (1,2) peuvent être mises en service séparément ou simultanément.
2. Dispositif selon la revendication 1, caractérisé en ce que les conduites d'arrivée (1, 2) sont prévues sur le même côté de la turbine (4).
3. Dispositif selon la revendication 1, caractérisé en ce que les conduites d'arrivée (1, 2) sont prévues sur les côtés opposés de la turbine (4).
EP80104086A 1979-08-08 1980-07-15 Dispositif pour le sablage de la surface d'une pièce à travailler Expired EP0023980B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104086T ATE4299T1 (de) 1979-08-08 1980-07-15 Vorrichtung zum strahlen der oberflaeche eines werkstuecks.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792932084 DE2932084A1 (de) 1979-08-08 1979-08-08 Vorrichtung zum strahlen der oberflaeche eines werkstuecks
DE2932084 1979-08-08

Publications (3)

Publication Number Publication Date
EP0023980A2 EP0023980A2 (fr) 1981-02-18
EP0023980A3 EP0023980A3 (en) 1981-08-26
EP0023980B1 true EP0023980B1 (fr) 1983-07-27

Family

ID=6077886

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80104086A Expired EP0023980B1 (fr) 1979-08-08 1980-07-15 Dispositif pour le sablage de la surface d'une pièce à travailler

Country Status (3)

Country Link
EP (1) EP0023980B1 (fr)
AT (1) ATE4299T1 (fr)
DE (1) DE2932084A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613255B1 (fr) * 1987-04-02 1989-07-21 Francaise Sucrerie Dispositif pour augmenter la vitesse et l'energie de projection des particules d'un jet de liquide et son application en particulier dans l'industrie du sucre
DE4226680A1 (de) * 1992-08-12 1993-09-30 Manfred Ullrich Mobile Schleuderstrahlmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1141915B (de) * 1958-08-13 1962-12-27 Alfred Gutmann Ges Fuer Maschb Einrichtung zur gleichzeitigen beiderseitigen Abstrahlung von Walzdraht mit einem koernigen Gut

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2224647A (en) * 1930-05-10 1940-12-10 Grocholl Karl Sand centrifuging cleaning machine
US2279342A (en) * 1935-05-25 1942-04-14 Quinnex Corp Abrasive projecting apparatus
US2261185A (en) * 1936-08-17 1941-11-04 Pangborn Corp Abrading apparatus
GB1071209A (en) * 1966-05-12 1967-06-07 Giessereianlagen Veb Improvements in or relating to centrifugal apparatus for cleaning or scaling machines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1141915B (de) * 1958-08-13 1962-12-27 Alfred Gutmann Ges Fuer Maschb Einrichtung zur gleichzeitigen beiderseitigen Abstrahlung von Walzdraht mit einem koernigen Gut

Also Published As

Publication number Publication date
EP0023980A3 (en) 1981-08-26
DE2932084A1 (de) 1981-02-26
ATE4299T1 (de) 1983-08-15
EP0023980A2 (fr) 1981-02-18

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