EP0120247A2 - Machine de grenaillage à postes multiples - Google Patents

Machine de grenaillage à postes multiples Download PDF

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Publication number
EP0120247A2
EP0120247A2 EP84101328A EP84101328A EP0120247A2 EP 0120247 A2 EP0120247 A2 EP 0120247A2 EP 84101328 A EP84101328 A EP 84101328A EP 84101328 A EP84101328 A EP 84101328A EP 0120247 A2 EP0120247 A2 EP 0120247A2
Authority
EP
European Patent Office
Prior art keywords
blasting
drum
station
machine according
loading
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.)
Granted
Application number
EP84101328A
Other languages
German (de)
English (en)
Other versions
EP0120247A3 (en
EP0120247B1 (fr
Inventor
Peter Brenner
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.)
Georg Fischer AG
Original Assignee
Georg Fischer 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 Georg Fischer AG filed Critical Georg Fischer AG
Publication of EP0120247A2 publication Critical patent/EP0120247A2/fr
Publication of EP0120247A3 publication Critical patent/EP0120247A3/de
Application granted granted Critical
Publication of EP0120247B1 publication Critical patent/EP0120247B1/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

Definitions

  • the invention relates to a multi-station centrifugal jet machine, as characterized in the preamble of claim 1.
  • a machine of the type mentioned at the outset is known (EP-Al 0021 359), but in which it is not possible for the blasting agent and the blasted particles to flow off in every position of the workpiece receiving chambers. For this reason, the two blasting stations are arranged in the lower area of this machine, but this means that when blasting out, which takes place in the loading and unloading station arranged above, no blasting agent and other particles can flow off.
  • a further disadvantage is that the loading and unloading station arranged at the top requires a high construction with complex loading devices, that the cycle time is determined by the sum of the unwinding, unloading and loading times and that the workpieces are held at the end for the different types of workpieces different holding devices are required or the machine is not universal enough.
  • the object of the present invention is to provide a multi-station centrifugal blasting machine of the type mentioned which, despite a compact design and short throughput time for the workpieces, ensures that the abrasive and the blasted particles flow out of each workpiece-receiving chamber in every position, so that the most favorable position Beam processing station or stations and the loading and unloading station is selectable.
  • the workpiece holding device should be designed so that workpieces of different shape and size can be clamped without specially adapted holding parts so that all-round blasting treatment is guaranteed.
  • the characterizing features of claim 1 ensure that the abrasive and the emitted particles can flow out of each receiving chamber and in any position of these chambers.
  • the multi-station blasting machine has a blasting housing 1, in which a vertically standing conveyor designed as a drum 2 is arranged so as to be rotatable about a horizontal axis 3, the drum 2 preferably being driven by a geared motor 4.
  • the drum 2 has four receiving chambers 5 for workpieces 6 which are evenly distributed on the circumference and which can be brought from a loading and unloading station 7 into two blasting treatment stations 8, 8a and an unwinding station 9 of the blasting housing 1 in cycles.
  • the drum 2 has side walls 10 which are connected to one another by rods 11 at both ends and which, together with approximately radially extending partition walls 12, 13, form the receiving chambers 5.
  • the partition walls 12 run from the outer circumference of the drum 2 to the center region of the drum 2 with a lateral distance from the drum center, where they form, overlapping each other, openings 15.
  • the partitions 13 run in the outer part 13a parallel to the partitions 12 and have an angled, past the rods 11 and on the next succeeding partition 12 tapering inner part 13b, this part forming an opening 16 there with the next partition 12.
  • the partitions 12 and 13 are thus arranged so as to overlap one another in the center region of the drum, with the openings 15 and 16 producing a labyrinthine connection between all the receiving chambers 5 and blasting agent drainage channels 14.
  • Sealing elements 17, 18, 19 designed as sealing strips are preferably arranged on the blasting housing 1 and ensure sealing of the blasting stations 8, 8a with respect to the loading and unloading station 7 and the unwinding station 9, as well as with respect to the loading and unloading station 7.
  • Labyrinth seals 20 are also arranged between the rotating side walls 10 and the blasting housing 1, as a result of which blasting chambers which are sealed together with the other seals and the partition walls are provided in the region of the blasting stations.
  • Each receiving chamber 5 has a holding device 21 for the workpieces 6, which is provided with a workpiece support 22 and at least one, preferably two, clamping devices 23.
  • the workpiece support 22 is fastened on both sides to a respective bearing part 24, which is rotatably mounted about a rotation axis 26 in bearings 25 arranged on the two side walls 10.
  • Each of the holding devices 21 can be driven by a geared motor 27 fastened to a side wall 10 and a chain or belt drive 28, so that the workpieces are rotated individually in each station can be.
  • the energy for the geared motors 27 rotating with the drum 2 is preferably transmitted by slip rings.
  • Each clamping device 23 has at least one clamping claw 30 arranged on a pivoting lever 29, the pivoting lever 29 with the clamping claw 30 being pivotably mounted on the bearing part 24 and by means of a e.g. force spring 31 designed as a spring is pressed against the workpiece 6.
  • the swivel lever 29 has a second lever arm 32, on which an actuating device 34 for lifting the clamping claw 30 from the workpiece 6 engages in the loading and unloading station 7 according to arrow 33.
  • the actuating device can be an electro-mechanically or hydraulically or pneumatically actuated plunger.
  • the workpiece support 22 is designed as a grate 45 and is attached to the two bearing parts 24 in an easily replaceable manner and / or adjustable in height, as a result of which the distance 36 from the support plane 35 to the axis of rotation 26 can be changed.
  • the grate has to be raised so that they can be clamped somewhat centrally to the axis of rotation 26 for the purpose of uniform blasting treatment.
  • the loading and unloading station has an opening 38 which can be closed by a lowerable door 37 and through which the workpieces 6 are introduced or removed by means of a loading device 39.
  • the holding device 21 is positioned in a specific position and the workpieces 6 are fed to it according to arrow 44.
  • the lower part of the blasting housing 1 has an opening 40, below which an oscillating conveyor 41 is arranged for the removal of the blasting medium and the blasted particles.
  • Centrifugal wheel units 42 are fastened to the peripheral walls of the blasting housing 1, two or more of which are preferably arranged associated with one blasting treatment station 8 or 8a.
  • the blasting housing 1 is fastened to a frame 43, on which the axis 3 of the drum 2 is rotatably mounted and to which the gear motor 4 is fastened.
  • One or more workpieces 6 are brought by means of the loading device 39 through the opening 38 of the loading and unloading station 7 into a receiving chamber 5 and are held there by the clamping device 30 resting on the grate 45 in the holding device 21 by spring force.
  • the drum 2 is then rotated through 90 °, as a result of which the workpieces 6 reach the first blasting treatment station 8 and, at the same time, are set in rotation by switching on the geared motor 27 in order to treat them on all sides by means of centrifugal blasting of the centrifugal wheel units 42.
  • the second receiving chamber 5 can be loaded with workpieces 6.
  • the drum 2 After a further rotation of the drum 2 by 90 °, the workpieces 6 come into the second blasting treatment station 8a and the third receiving chamber 5 can be loaded with workpieces 6. If this beam treatment stops, the drum 2 is rotated again by 90 0 and the finished blasted workpieces 6 enter the Austrommelstation 9. Here they are again combined by means of the geared motor 27 in rotation to carry order to inhabitants to achieve emptying of the workpiece cavities by blasting agent.
  • a further rotation of the drum 2 brings the cleaned workpieces into the loading and unloading station 7, where they are brought into the removal position by means of a positioning control on the geared motor 27 by rotating the holding device.
  • the empty loading device 39 is moved under the workpiece (s) and the clamping claws are released by switching on the actuating device 34, as a result of which the workpiece reaches the loading device 39 and is removed from the receiving chamber 5 with it.
  • the arrangement of the partition walls 12 and 13 to form channels 14 which are open on the outer circumference and their labyrinthine connection to the receiving chambers 5 in the center of the drum 2 ensures that the blasting agent and the blasted particles flow away from the blasting stations 8, 8a even during the blasting treatment, so that no disturbing accumulations of this material are possible.
  • This material is derived in such a way that it does not interfere with the process of drumming out or loading and unloading.
  • the assignment of a rotary drive for the workpieces at each station enables different speeds, directions of rotation and downtimes of the workpieces in the individual stations, as well as maintaining a certain stop position in the loading and unloading station.
  • the individual rotary drives for the workpieces, protected by blasting media, enable the use of different rotational processes for the workpieces in each blasting treatment station, and in the unwinding station, which can be adapted to the workpiece shape in order to achieve a uniform blasting treatment.
  • the multi-station beam treatment machine according to the invention is especially for workpieces that are not drum-compatible, such as suitable for engine blocks, cylinder heads, gear housings etc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Specific Conveyance Elements (AREA)
  • Treatment Of Fiber Materials (AREA)
EP84101328A 1983-03-21 1984-02-09 Machine de grenaillage à postes multiples Expired EP0120247B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1519/83A CH657085A5 (de) 1983-03-21 1983-03-21 Mehrstationenstrahlbearbeitungsmaschine.
CH1519/83 1983-03-21

Publications (3)

Publication Number Publication Date
EP0120247A2 true EP0120247A2 (fr) 1984-10-03
EP0120247A3 EP0120247A3 (en) 1986-07-30
EP0120247B1 EP0120247B1 (fr) 1988-05-04

Family

ID=4212335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84101328A Expired EP0120247B1 (fr) 1983-03-21 1984-02-09 Machine de grenaillage à postes multiples

Country Status (4)

Country Link
US (1) US4577441A (fr)
EP (1) EP0120247B1 (fr)
CH (1) CH657085A5 (fr)
DE (1) DE3470863D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291707A3 (en) * 1987-05-16 1990-03-14 Goldmann Friedrich Gmbh & Co Sandblast cabinet
FR2750634A1 (fr) * 1996-07-02 1998-01-09 Gen Traitements De Surfaces Carrousel de manutention d'objets devant subir un traitement de surface par sablage
KR100815871B1 (ko) 2007-04-25 2008-03-24 삼진쇼트기계공업 주식회사 연속식 쇼트 블라스트 장치
KR100869970B1 (ko) 2007-04-25 2008-11-21 삼진쇼트기계공업 주식회사 연속식 쇼트 블라스트 장치

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665655A (en) * 1985-07-17 1987-05-19 Ampro Equipment, Inc. Apparatus for cleaning of engine cylinder heads, blocks and other components
US4917708A (en) * 1987-01-19 1990-04-17 Fuji Seiki Machine Works, Ltd. Deburring and cleaning apparatus with multi-station rotary drum and reciprocating blasting guns
US5197500A (en) * 1990-10-11 1993-03-30 Northwest Airlines, Inc. Combustion chamber cleaning machine
US5782677A (en) * 1997-01-14 1998-07-21 Kanouse; Richard C. Continuous process blast mill for finishing cast metal parts
US6286523B1 (en) 2000-01-25 2001-09-11 Cae Ransohoff Inc. Parts transport mechanism for a rotary style parts treating machine
US6276374B1 (en) 2000-01-25 2001-08-21 Cae Ransohoff Inc. Rotary style parts cleaning machine with a pocketed wheel
US20040101609A1 (en) * 2002-11-26 2004-05-27 Mulder Gary E. Apparatus for perforating food crop seed, and method
CN111571452B (zh) * 2020-05-28 2021-06-15 常熟致圆微管技术有限公司 一种不锈钢材料表面处理装置
CN116985042B (zh) * 2023-08-02 2025-09-23 重庆芯洁科技有限公司 一种防着母板上熔射涂层的制备方法
DE102023131092B4 (de) * 2023-11-09 2026-03-26 CARTEC Autotechnik Fuchs GmbH Strahlmittelvorrichtung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629207A (en) * 1950-10-09 1953-02-24 Pangborn Corp Plate blasting machine
US3146550A (en) * 1961-07-07 1964-09-01 Ajem Lab Inc Abrasive blasting machine
DE2510827C2 (de) * 1975-03-12 1977-02-24 Badische Maschf Gmbh Foerdereinrichtung fuer zylinderbloecke oder aehnliche werkstuecke durch eine schleuderstrahlanlage
CH636790A5 (de) * 1979-06-29 1983-06-30 Fischer Ag Georg Mehrstationenstrahlbearbeitungsmaschine.
US4387537A (en) * 1981-05-01 1983-06-14 Iowa Engineered Processes Corp. Deburring and cleaning machine and process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291707A3 (en) * 1987-05-16 1990-03-14 Goldmann Friedrich Gmbh & Co Sandblast cabinet
FR2750634A1 (fr) * 1996-07-02 1998-01-09 Gen Traitements De Surfaces Carrousel de manutention d'objets devant subir un traitement de surface par sablage
KR100815871B1 (ko) 2007-04-25 2008-03-24 삼진쇼트기계공업 주식회사 연속식 쇼트 블라스트 장치
KR100869970B1 (ko) 2007-04-25 2008-11-21 삼진쇼트기계공업 주식회사 연속식 쇼트 블라스트 장치

Also Published As

Publication number Publication date
CH657085A5 (de) 1986-08-15
DE3470863D1 (en) 1988-06-09
US4577441A (en) 1986-03-25
EP0120247A3 (en) 1986-07-30
EP0120247B1 (fr) 1988-05-04

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