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EP1864755B1 - Traitement par jet - Google Patents

Traitement par jet Download PDF

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Publication number
EP1864755B1
EP1864755B1 EP07011336A EP07011336A EP1864755B1 EP 1864755 B1 EP1864755 B1 EP 1864755B1 EP 07011336 A EP07011336 A EP 07011336A EP 07011336 A EP07011336 A EP 07011336A EP 1864755 B1 EP1864755 B1 EP 1864755B1
Authority
EP
European Patent Office
Prior art keywords
blasting
accordance
cover plate
blast wheel
plant
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.)
Active
Application number
EP07011336A
Other languages
German (de)
English (en)
Other versions
EP1864755B8 (fr
EP1864755A1 (fr
Inventor
Klaas Boie
Andreas Buchheim
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.)
Roesler Holding GmbH
Original Assignee
Rosler Oberflachentechnik 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
Application filed by Rosler Oberflachentechnik GmbH filed Critical Rosler Oberflachentechnik GmbH
Publication of EP1864755A1 publication Critical patent/EP1864755A1/fr
Publication of EP1864755B1 publication Critical patent/EP1864755B1/fr
Application granted granted Critical
Publication of EP1864755B8 publication Critical patent/EP1864755B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24CABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00Abrasive blasting machines or devices; Plants
    • B24C3/08Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
    • B24C3/10Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
    • B24C3/14Apparatus using impellers

Definitions

  • the invention relates to a blasting machine with at least one upper blast wheel, which is arranged in an upper region of a blasting chamber, and at least one lower blast wheel, which is arranged in a lower region of the blasting chamber.
  • Blasting systems are basically known and serve for the abrasive surface treatment of workpieces.
  • the lower portion of the blasting chamber is difficult to access, which is why the maintenance or replacement of the lower blast wheel proves to be problematic.
  • the invention has for its object to provide a blasting system of the type mentioned, which allows easier maintenance and easier replacement of the lower blast wheel.
  • the object is achieved by a blasting machine with the features of claim 1 and in particular by the fact that the lower blast wheel is mounted on a carriage, which is displaceable between an operating position in which the lower blast wheel is inside the blasting chamber, and a mounting position the lower blast wheel is outside the blast chamber.
  • the idea according to the invention does not consist of firmly fixing the lower impeller or the lower impellers in the Instead, to install it on a carriage, which can be pulled out of the blasting chamber or pushed into it in the manner of a drawer.
  • all lower blast wheels are easily accessible, i. they can be easily serviced or replaced, in particular without the blast chamber needing to be opened.
  • the carriage is displaceable transversely to the direction in which a workpiece to be irradiated is transported into or through the blasting chamber.
  • the lower blast wheel is pivotable with respect to the carriage. In this way, the lower blast wheel can be brought in befindlichem in the mounted position carriage in a position in which an even easier maintenance and an even easier replacement of the lower blast wheel is possible.
  • a cover plate is arranged above the lower centrifugal wheel, which has openings for an accelerating agent accelerated by the lower centrifugal wheel.
  • the cover plate separates the lower portion of the blasting chamber, in which the lower blast wheel is located, from a working area of the blasting chamber, in which the machining of a workpiece to be blasted occurs, and protects the lower blast wheel and its drive from falling abrasive, i. So before blasting agent, which was ejected from the lower and / or the upper blast wheel and falls down from the work area.
  • the cover plate may be connected to the carriage, so that it is moved out of the blasting chamber together with the lower blast wheel when the carriage is brought from its operating position to its mounting position.
  • the cover plate is pivotable with respect to the carriage. This is particularly advantageous when the lower blast wheel is attached to the cover plate, as the underlying below the cover plate lower blast wheel can be easily brought in this way by a "flipping" the cover plate in a position which an even easier maintenance or allows an even easier replacement of the impeller.
  • At least one pneumatic or hydraulic cylinder can be provided.
  • the cylinder can interact directly with the cover plate or with a frame carrying the cover plate.
  • other possibilities for pivoting the blast wheel come into question, such as a pivoting by means of a motor, such as electric motor, or a manual pivoting.
  • the pivot axis is oriented parallel to the direction of displacement of the carriage.
  • the alignment of the pivot axis, which is parallel to the displacement direction not only facilitates the pivoting of the centrifugal wheels, but also ensures good access to all lower centrifugal wheels.
  • a seal is provided to at least partially seal a lying below the cover plate portion of the blasting chamber with respect to a located above the cover plate portion of the blasting chamber when located in the operating position slide.
  • the seal may comprise a sealing tube, the cross-section of which can be enlarged by application of a pressurized fluid.
  • the pressurized fluid may be a gas, eg air, or a liquid which is passed through the sealing tube at a certain pressure.
  • the seal may comprise a permanent magnetic material or an electromagnetic arrangement.
  • a permanent magnetic material or the electromagnetic arrangement By the permanent magnetic material or the electromagnetic arrangement, a ferromagnetic material exhibiting abrasive is attracted. With suitable positioning of the permanent magnetic material or the electromagnetic arrangement, the blasting agent can thus be made to settle in a gap to be sealed between the cover plate and a wall of the blasting chamber and to close it at least approximately completely. In this case, the blasting material itself is therefore used as a sealing material.
  • the seal may also comprise a hydraulic or pneumatic clamping system.
  • a blasting machine 10 for the abrasive surface treatment of a workpiece 12 is shown.
  • the blasting system 10 comprises a blasting chamber 14, at its rear side 16 an inlet opening (Not shown) and at the front side 20, a corresponding output port 18 is provided for the workpiece 12 to be blasted.
  • the blasting installation 10 is thus a continuous installation, ie the workpiece 12 to be blasted is introduced into the blasting chamber 14 via the inlet opening, passes through a working area of the blasting chamber 14 in which the surface treatment of the workpiece 12 takes place, and passes through the outlet opening 18 again from the blasting chamber 14.
  • the transport direction of the workpiece 12 through the blasting machine 10 is in Fig. 1 indicated by the arrow 22.
  • the workpiece 12 is mounted on a plurality of transport rollers 24 which extend transversely to the transport direction 22 of the workpiece 12 through the blasting chamber 14 therethrough.
  • a plurality of upper blast wheels 26 are arranged. More specifically, the upper spinner wheels 26 are mounted on a top wall 28 of the blasting chamber 14 and fixedly connected to this, for example screwed ( Fig. 3 ). Each of the upper spinner wheels 26 is drivable by a drive motor 30. Further, a blasting agent is axially fed to each upper impeller 26 by means of a blasting agent, not shown in the figures, which can be accelerated by the impellers 26 and formed in the upper wall 28 openings (not shown) in the working area of the blasting chamber 14.
  • upper centrifugal wheels 26 are shown. However, the number of upper spinner wheels 26 may also deviate therefrom, for example as a function of the width, ie the extent transverse to the transport direction 22, the blasting chamber 14 or the workpiece 12 to be blasted.
  • the upper spinner wheels 26 are arranged side by side transversely to the transport direction 22 and slightly inclined with respect to the transport direction 22, so that the areas in which the blasting agent is ejected from the individual spinner wheels 26 do not overlap each other in the transport direction 22.
  • a plurality of lower blast wheels 32 are arranged in a lower portion of the blasting chamber 14.
  • three lower spinner wheels 32 are provided, wherein here - e.g. Depending on the width of the blasting chamber 14 or of the workpiece 12 to be blasted, the number of lower bladed wheels 32 can vary.
  • the lower sprockets 32 are also juxtaposed transversely to the transporting direction 22 and slightly inclined with respect to the transporting direction 22 so that the portions to which blasting agents are ejected from the lower sprockets 32 do not overlap each other in the transporting direction.
  • a drive motor 34 is also associated with each lower centrifugal wheel 32.
  • the supply of blasting agent in the axial direction also takes place in the lower blasting wheels 32.
  • the lower blasting wheels 32 permanently installed in the blasting chamber 14 and coupled with the lower blast wheels 32 Strahlkarzu arrangementen provided (not shown). The coupling of the lower spinner wheels 32 with their respective associated blasting agent feeds takes place automatically as soon as the carriage 36 reaches its operating position.
  • the lower spinner wheels 32 are not fixedly mounted on the blasting chamber 14. Instead, the lower spinner wheels 32 are mounted on a carriage 36, which in a direction of displacement 38 transverse to the transport direction 22 between an operating position in which the carriage 36 is completely within the blasting chamber 14, and a mounting position in which the carriage 36 is complete is located outside the blasting chamber 14, is displaceable.
  • the carriage 36 is guided by two mutually spaced and transversely to the transport direction 22 extending guides 37.
  • the lower spinner wheels 32 for example, for the purpose of maintenance or replacement, partially or completely out of the blasting chamber 14 and vice versa back into the blasting chamber 14.
  • the carriage 36 together with the lower centrifugal wheels 32, so to speak thus forms a centrifugal drawer, which can be pulled laterally out of the blasting chamber 14 or pushed into it as needed.
  • the carriage 36 is shown in its mounting position.
  • the lower spinner wheels 32 are mounted on the underside 40 of a cover plate 42 having the sprockets 32 associated openings 44 to allow ejection of the accelerated by the lower spinner 32 abrasive in the working range of the blasting chamber 14.
  • the cover plate 42 is supported by a frame 46 which is pivotally connected to the carriage 36.
  • the pivot axis 48 runs parallel to the displacement direction 38 of the carriage 36 along a front edge region 50 of the carriage 36th
  • the cover plate 42 and attached to the cover plate 42 lower blast wheels 32 can be brought into a position in which the lower blast wheels 32 are freely accessible for the purpose of maintenance or replacement both from above and from behind.
  • the cover plate 42 is oriented substantially vertically, i. the whole ensemble of frame 46, cover plate 42 and lower blast wheels 32 is tilted upwards.
  • the pivoting or tipping up of the arrangement of frame 46, cover plate 42 and lower centrifugal wheels 32 is carried out according to the illustrated embodiment by means of two pneumatic or hydraulic cylinder 52, which are supported on the carriage 32 and the underside 40 of the cover plate 42 on the one hand.
  • the number of cylinders can also differ from two.
  • other variants for pivoting the lower centrifugal wheels 32 and the cover plate 42 are conceivable, for example, the pivoting by means of an electric motor or a manual pivoting.
  • cover plate 42 While the cover plate 42 is oriented substantially vertically in the mounting position shown in the figures, it assumes a substantially horizontal position in the operating position, ie in the folded-down state.
  • the lower centrifugal wheels 32 and their drive motors 34 are protected during a blasting process from blasting agent, which falls from the working area of the blasting chamber 14.
  • a seal is provided which extends along an edge region of the cover plate 42.
  • the seal is formed by a sealing tube 54 which can be inflated by means of a pressurized fluid and runs along the sides of the cover plate 42 facing away from the pivot axis 48.
  • a gap existing between the cover plate 42 and a wall of the blasting chamber 14 and / or between the cover plate 42 and a further cover optionally provided in the blasting chamber 14 can be closed.
  • the seal may also comprise a permanent magnetic material or an electromagnetic arrangement.
  • a design of the seal with a hydraulic or pneumatic clamping system is conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Glass Compositions (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Inorganic Insulating Materials (AREA)
  • Materials For Photolithography (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Transplanting Machines (AREA)

Claims (13)

  1. Installation de sablage (10) comprenant au moins une roue de projection supérieure (26) qui est agencée dans une région supérieure d'une chambre de sablage (14), et au moins une roue de projection inférieure (32) qui est agencée dans une région inférieure de la chambre de sablage (14),
    caractérisée en ce que
    la roue de projection inférieure (32) est montée sur un chariot (36) qui peut être déplacé entre une position de service dans laquelle la roue de projection inférieure (32) se trouve à l'intérieur de la chambre de sablage (14) et une position de montage dans laquelle la roue de projection (32) se trouve à l'extérieur de la chambre de sablage.
  2. Installation de sablage (10) selon la revendication 1,
    caractérisée en ce que le chariot (36) est déplaçable transversalement à la direction (22) dans laquelle une pièce à oeuvrer (12) qu'il s'agit de sabler est transportée en entrant dans la chambre de sablage (14) ou à travers celle-ci.
  3. Installation de sablage (10) selon la revendication 1 ou 2,
    caractérisée en ce que la roue de projection inférieure (32) est capable de pivoter par rapport au chariot (36).
  4. Installation de sablage (10) selon la revendication 3,
    caractérisée en ce que l'axe de pivotement (48) est orienté parallèlement à la direction de déplacement (38) du chariot (36).
  5. Installation de sablage (10) selon la revendication 3 ou 4,
    caractérisée en ce qu'il est prévu au moins un vérin pneumatique ou hydraulique (52) pour faire pivoter la roue de projection inférieure (32).
  6. Installation de sablage (10) selon l'une des revendications précédentes,
    caractérisée en ce que, lorsque le chariot (36) se trouve dans la position de service, une plaque de couverture (42) est agencée au-dessus de la roue de projection inférieure (32), ladite plaque présentant des ouvertures (44) pour un agent de sablage accéléré par la roue de projection inférieure (32).
  7. Installation de sablage (10) selon la revendication 6,
    caractérisée en ce que la plaque de couverture (42) est reliée au chariot (36).
  8. Installation de sablage (10) selon la revendication 6 ou 7,
    caractérisée en ce que la plaque de couverture (42) est capable de pivoter par rapport au chariot (36).
  9. Installation de sablage (10) selon l'une des revendications 6 à 8,
    caractérisée en ce que la roue de projection inférieure (32) est fixée sur la plaque de couverture (42).
  10. Installation de sablage (10) selon l'une des revendications 6 à 9,
    caractérisée en ce qu'il est prévu un joint pour étancher, lorsque le chariot (36) se trouve dans la position de service, au moins par tronçons une zone de la chambre de sablage (14) située au-dessous de la plaque de couverture (42) vis-à-vis d'une zone de la chambre de sablage (14) située au-dessus de la plaque de couverture (42).
  11. Installation de sablage (10) selon la revendication 10,
    caractérisée en ce que le joint comprend un tube-joint (54), dont la section transversale peut être agrandie par alimentation avec un fluide sous pression.
  12. Installation de sablage (10) selon la revendication 10 ou 11,
    caractérisée en ce que le joint comprend un matériau magnétique permanent ou un agencement électromagnétique.
  13. Installation de sablage (10) selon l'une des revendications 10 à 12,
    caractérisée en ce que le joint comprend un système de serrage hydraulique ou pneumatique.
EP07011336A 2006-06-09 2007-06-08 Traitement par jet Active EP1864755B8 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006026897A DE102006026897A1 (de) 2006-06-09 2006-06-09 Strahlanlage

Publications (3)

Publication Number Publication Date
EP1864755A1 EP1864755A1 (fr) 2007-12-12
EP1864755B1 true EP1864755B1 (fr) 2009-02-18
EP1864755B8 EP1864755B8 (fr) 2009-04-08

Family

ID=38421605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07011336A Active EP1864755B8 (fr) 2006-06-09 2007-06-08 Traitement par jet

Country Status (5)

Country Link
EP (1) EP1864755B8 (fr)
AT (1) ATE422989T1 (fr)
DE (2) DE102006026897A1 (fr)
DK (1) DK1864755T3 (fr)
ES (1) ES2321564T3 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH447864A (de) * 1966-02-14 1967-11-30 Fischer Ag Georg Schleuderstrahl-Putzmaschine zum Strahlen von Halbfabrikaten, insbesondere von Walzgütern, z.B. Blechen und Bändern aus Eisen
GB1478887A (en) * 1975-08-21 1977-07-06 Tilghman Wheelabrator Lgd Shot-blasting machines
US4199904A (en) * 1977-12-02 1980-04-29 The Carborundum Company Retractable blast wheel carrier
DE10244940A1 (de) * 2002-09-25 2004-04-08 Jankow, Damir, Dipl.-Ing. Vorrichtung zur mechanischen Oberflächenbehandlung von Werkstücken

Also Published As

Publication number Publication date
DE102006026897A1 (de) 2007-12-13
DK1864755T3 (da) 2009-05-11
ATE422989T1 (de) 2009-03-15
EP1864755B8 (fr) 2009-04-08
DE502007000439D1 (de) 2009-04-02
ES2321564T3 (es) 2009-06-08
EP1864755A1 (fr) 2007-12-12

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