EP0145851A1 - Geschlossene Vorrichtung für die Bestrahlung von Werkstücken mit körnigen Strahlmitteln - Google Patents

Geschlossene Vorrichtung für die Bestrahlung von Werkstücken mit körnigen Strahlmitteln Download PDF

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Publication number
EP0145851A1
EP0145851A1 EP84110689A EP84110689A EP0145851A1 EP 0145851 A1 EP0145851 A1 EP 0145851A1 EP 84110689 A EP84110689 A EP 84110689A EP 84110689 A EP84110689 A EP 84110689A EP 0145851 A1 EP0145851 A1 EP 0145851A1
Authority
EP
European Patent Office
Prior art keywords
blasting
area
abrasive
discharge opening
coarse
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Withdrawn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
EP84110689A
Other languages
German (de)
English (en)
French (fr)
Inventor
Horst-Dieter Schlick
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.)
SCHLICK-Roto-Jet Maschinenbau GmbH
Original Assignee
SCHLICK-Roto-Jet Maschinenbau 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 SCHLICK-Roto-Jet Maschinenbau GmbH filed Critical SCHLICK-Roto-Jet Maschinenbau GmbH
Publication of EP0145851A1 publication Critical patent/EP0145851A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

Definitions

  • the invention relates to a closed blasting device (blasting cabin) for irradiating workpieces with granular abrasive, with at least one device for generating and directing a blasting agent jet onto one or more workpieces located in a working area, with one below the working area in the blasting cabin arranged collecting tray for the contaminated abrasive, at least one discharge opening in the collecting tray, from which the contaminated abrasive trickles out during operation and gets into an air classifier arrangement in which a division into coarse and fine material takes place, as well as with a device for transporting the sighted coarse material from the visible area in the work area.
  • Blasting cabins are understood to be devices surrounded by a housing, used as part of a processing line or on their own, into which workpieces can be introduced with or without manual help, which can be exposed to a blasting agent jet in the blasting cabin, so that oxidation and paint parts, scaling and the like can be removed from the surface.
  • Such blasting booths have to be supplied with constantly fresh blasting media, whereby a circuit is sought to keep the blasting medium to keep tel loss as low as possible.
  • Closed blasting devices (US Pat. No. 1,511 C25) which have a closed, manually accessible blasting chamber into which the blasting medium jet is introduced from above via a compressed air line.
  • the falling abrasive falls into a separator area for the separation of abrasive and dirt particles.
  • the latter are suctioned off, while the blasting medium reaches a collecting funnel, from which it can be extracted in a dosed manner using the compressed air supplied.
  • the known device is therefore a device operated exclusively with compressed air, in which a relatively small amount of blasting agent is converted over time.
  • a much larger amount of abrasive is required when operating a blasting device with centrifugal wheels, as is widely used in surface blasting technology for devices with larger capacities and with greater blasting intensity.
  • the greater need for blasting media for centrifugal wheels cannot be satisfied with a compressed air line alone.
  • a blasting cabin of the type mentioned at the outset in which at least one centrifugal wheel is used as a device for generating the blasting medium jet and which are characterized in that is that a bucket elevator for transporting the coarse material is arranged in the area of a cabin wall, the receiving area of which is arranged below the discharge opening for the coarse product and in which the bucket elevator empties the blasting media into a blasting media hopper for the or 3 centrifugal wheels.
  • the above-mentioned individual parts make it possible to transport even large quantities of blasting particles without having to interpose an intermediate container or blasting agent bunker.
  • the blasting media centrifugal wheel in the upper area of the blasting cabinet for generating and straightening a blasting media jet is equipped with the appropriate metered impeller feed of the blasting media and covers a working area in the upper part of the blasting cabinet. After contact with the workpieces or the housing wall, the contaminated abrasive drops down into a collecting switch.
  • the latter consists of two V-shaped base plates which have a slot at the low point as a discharge opening.
  • the contaminated blasting agent trickles out through the slot or the discharge opening and is caught by a stream of sighting agent (air), whereby the heavier parts (the coarse material), i.e. the largely cleaned blasting agent, fall into a collecting container according to the principle of known air classifiers, while the lighter one Fine material, primarily abrasive abrasive and contamination, is led into a pre-separator room, in which the flow of the sighting agent is calmed down. From here, the classifying air is led to a fine filter via a duct.
  • the main characteristics here are that the reservoir for the abrasive is no longer arranged below the viewing area and there is one occupies a large space, but the abrasive supply is distributed over the receiving pit, the cups of the bucket elevator and the abrasive funnel arranged above the blast wheels.
  • This combination of the individual elements therefore allows an extremely compact design.
  • the combination of bucket elevator and slot arrangement also has the advantage that when the device is switched off, only a pouring cone of the blasting agent is obtained, which does not hinder the start-up of the bucket elevator after restarting.
  • FIG. 1 shows a perspective view of a blasting cabin 1 with a cuboid wall arrangement. Some of the walls are omitted or shown in section.
  • the upper part of the blasting cubicle also includes the blasting area (working area) 3.
  • a workpiece 2 here a double-T beam, is passed through the blasting cubicle 1 in the direction of the arrow.
  • An automatically driven roller conveyor 23 is provided for the transport of the workpieces 2.
  • the starting point of the blasting agent jets 4, 4' are two centrifugal wheels 22, 22 'attached at different heights with a horizontal axis of rotation, which are driven by an electric motor (not shown). are driven.
  • the installation and operation as well as the function of such centrifugal wheels in blasting cabins is known per se from the prior art.
  • the ricocheting blasting agent mixed with the substituted impurities, falls into a collecting wall 5, which in the present case consists of two V-shaped base plates 6 and 7, at the bottom of which a slot 8 remains open as a discharge opening with a corresponding spacing position of the base plates 6 and 7.
  • the base plates 6 and 7 are attached to the walls 29, 29 'and 29 "of the blasting cabinet housing.
  • a partition 10 is provided over the entire width of the blasting cabin 1, which is also arranged obliquely and with its lower edge in the area of a corner edge of the end wall ends. The upper edge of the partition 10 is pulled up so far that if no screening were to take place, the entire amount of blasting agent 9 would fall onto the partition 10.
  • the partition 10 ends at the top with a flat slit slide 11 for regulating the viewing and suction air flow 12.
  • the air flow 12 is created by negative pressure), which is created by suctioning the exhaust air into one (or more) exhaust air pipes 16 and is located in the lower region 16 'of the cabin 1 reproduced beneath the sump 5 and wall 10.
  • the air is sucked in through the two inlet and outlet gates 13, which are sealed with rubber curtains 13 ′ and lie opposite one another (only the front one is shown) of the cabin 1. From there, the air flow flows through the openings 14 for a bucket elevator 19 (see below) into the space 16 'below the collecting trough 5.
  • the air flow 12 which flows in the direction of the arrow, performs a sighting in such a way that the coarse material in the coarse material and abrasive area 15 on one side of the sheath wall 10 falls, while the fine material, ie abrasive abrasive and contaminants, are carried by the classifying air flow and reach a fine material and dirt particle area 16 'in which the classifying air flow calms down.
  • the fine and dirt particles entrained by the classifying air flow are fed from the area 16' via the illustrated exhaust pipe 16 to a fine filter device (not shown) arranged outside the blasting cubicle .
  • the cleaned abrasive passes through the inclined surface of the septum 10 into a lower region 17, a slot-shaped discharge opening 18 again being provided in the lowest region.
  • the cleaned blasting agent is conveyed through openings 14 in the collecting trough 5 into the upper region of the blasting cabinet 1.
  • the cups of the bucket elevator 19 empty into an abrasive funnel 20.
  • the abrasive flows from there metered to the impeller cages of the driven centrifugal wheels 22 and 22 '.
  • the centrifugal wheels 22 and 22 ' can be moved in a horizontal, inclined or vertical direction if correspondingly flexible connections are provided between the blasting agent dosing container and the impeller cage.
  • Bucket elevator and centrifugal wheel are arranged in the area of the same wall 29 of the blasting cabinet 1, so that there is a very compact design.
  • the bucket elevator can be shielded from the rest of the blasting cubicle by a further wall (not shown) that extends over part of the height of the blasting cubicle 1.
EP84110689A 1983-10-27 1984-09-07 Geschlossene Vorrichtung für die Bestrahlung von Werkstücken mit körnigen Strahlmitteln Withdrawn EP0145851A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833338980 DE3338980A1 (de) 1983-10-27 1983-10-27 Strahlkabine fuer die bestrahlung von werkstuecken mit koernigen strahlmitteln
DE3338980 1983-10-27

Publications (1)

Publication Number Publication Date
EP0145851A1 true EP0145851A1 (de) 1985-06-26

Family

ID=6212868

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110689A Withdrawn EP0145851A1 (de) 1983-10-27 1984-09-07 Geschlossene Vorrichtung für die Bestrahlung von Werkstücken mit körnigen Strahlmitteln

Country Status (3)

Country Link
EP (1) EP0145851A1 (ja)
JP (1) JPS60114466A (ja)
DE (1) DE3338980A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264248A (en) * 1992-02-21 1993-08-25 Williams N L Eng Ltd Shot blasting apparatus
EP0618042A1 (en) * 1993-03-29 1994-10-05 BTR plc Blasting apparatus
EP1714742A1 (de) * 2005-04-21 2006-10-25 DISA Industrie AG Schleuderstrahlanlage zum Strahlen von Werkstücken aus Leichtmetalllegierungen
WO2023205199A1 (en) * 2022-04-19 2023-10-26 Barron Emerson Scott Shot cascading apparatus for cleaning 3d printed components

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5014469A (en) * 1986-01-31 1991-05-14 Watts W David Shot removal system
US4958466A (en) * 1989-03-14 1990-09-25 Air Products And Chemicals, Inc. Exhaust gas media separator with recycling and dust collection
US5090162A (en) * 1990-06-13 1992-02-25 Nelson Robert T Surface treating apparatus
DE102009050428A1 (de) * 2009-10-22 2011-04-28 Rösler Holding GmbH & Co. KG Strahlmittelspeicher

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1511025A (en) * 1921-10-27 1924-10-07 George W Christoph Sand-blasting apparatus
US2618216A (en) * 1950-03-30 1952-11-18 Mulvany Harry Alfred Preservation of eggs
FR1268599A (fr) * 1960-06-23 1961-08-04 Procédé de traitement de surface protecteur des métaux, particulièrement des produits sidérurgiques
GB1013450A (en) * 1963-04-20 1965-12-15 St Georges Engineers Ltd Improvements in abrasive blasting machines for cleaning wire or rods
DE2220971A1 (de) * 1971-04-30 1972-12-14 Vacu Blast Ltd Vorrichtung zum zufuehren,rueckgewinnen oder sortieren von teilchenmaterial
US4326362A (en) * 1980-02-19 1982-04-27 Williams Virgil R Shot blast machine
DD201408A1 (de) * 1981-12-16 1983-07-20 Dederichs Hans Juergen Foerdereinrichtung zur rueckgewinnung magnetisierbaren strahlmittels in mobilen schleuderstrahlgeraeten

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE668645C (de) * 1938-12-07 Graue G M B H Anlage zum Entrosten und Abblasen von grossen und langen Werkstuecken, z.B. Lokomotivkesseln
US2414038A (en) * 1942-04-27 1947-01-07 Pangborn Corp Abrasive supply system
DE1119146B (de) * 1958-03-26 1961-12-07 Fischer Ag Georg Schleudereinrichtung
US3300902A (en) * 1964-07-13 1967-01-31 Lerner B Dockery Dry abrasive honing device
US3934374A (en) * 1974-08-21 1976-01-27 Wheelabrator-Frye, Inc. Sand reclamation system
JPS5823424Y2 (ja) * 1978-08-11 1983-05-19 株式会社小松製作所 動力噴霧機の噴霧管
SU937133A2 (ru) * 1979-03-01 1982-06-23 Предприятие П/Я А-7555 Установка дл абразивной обработки поверхностей бетонных изделий

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1511025A (en) * 1921-10-27 1924-10-07 George W Christoph Sand-blasting apparatus
US2618216A (en) * 1950-03-30 1952-11-18 Mulvany Harry Alfred Preservation of eggs
FR1268599A (fr) * 1960-06-23 1961-08-04 Procédé de traitement de surface protecteur des métaux, particulièrement des produits sidérurgiques
GB1013450A (en) * 1963-04-20 1965-12-15 St Georges Engineers Ltd Improvements in abrasive blasting machines for cleaning wire or rods
DE2220971A1 (de) * 1971-04-30 1972-12-14 Vacu Blast Ltd Vorrichtung zum zufuehren,rueckgewinnen oder sortieren von teilchenmaterial
US4326362A (en) * 1980-02-19 1982-04-27 Williams Virgil R Shot blast machine
DD201408A1 (de) * 1981-12-16 1983-07-20 Dederichs Hans Juergen Foerdereinrichtung zur rueckgewinnung magnetisierbaren strahlmittels in mobilen schleuderstrahlgeraeten

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264248A (en) * 1992-02-21 1993-08-25 Williams N L Eng Ltd Shot blasting apparatus
GB2264248B (en) * 1992-02-21 1996-09-25 Williams N L Eng Ltd Improvements in surface treatment apparatus
EP0618042A1 (en) * 1993-03-29 1994-10-05 BTR plc Blasting apparatus
EP1714742A1 (de) * 2005-04-21 2006-10-25 DISA Industrie AG Schleuderstrahlanlage zum Strahlen von Werkstücken aus Leichtmetalllegierungen
US7421872B2 (en) 2005-04-21 2008-09-09 Disa Industrie Ag Shot-blasting installation for blasting work pieces made from light metal alloys
WO2023205199A1 (en) * 2022-04-19 2023-10-26 Barron Emerson Scott Shot cascading apparatus for cleaning 3d printed components

Also Published As

Publication number Publication date
JPS60114466A (ja) 1985-06-20
DE3338980A1 (de) 1985-05-30
DE3338980C2 (ja) 1988-01-14

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

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

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

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18D Application deemed to be withdrawn

Effective date: 19860228

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Inventor name: SCHLICK, HORST-DIETER