EP0120247A2 - Multiposition blasting machine - Google Patents

Multiposition blasting machine 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
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EP
European Patent Office
Prior art keywords
blasting
drum
station
machine according
loading
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Granted
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EP84101328A
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German (de)
French (fr)
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EP0120247A3 (en
EP0120247B1 (en
Inventor
Peter Brenner
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Georg Fischer AG
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Georg Fischer AG
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Publication of EP0120247A3 publication Critical patent/EP0120247A3/en
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    • 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.

Abstract

Die Mehrstationenstrahlbehandlungsmaschine weist einem als Trommel (2) ausgebildeten Förderer für in mehreren Aufnahmekammern (5) mittels Haltevorrichtungen (21) gehaltene Werkstücke (6) auf. Jeweils das in einer Aufnahmekammer (5) liegende Werkstück (6) wird durch taktweises Drehen der Trommel (2) in zwei Strahlbehandlungsstationen (8, 8a) einer Austrommelstation (9) und einer Be- und Entladungsstation (7) gefördert. Die umfangsmässig gleichmässig verteilten Aufnahmekammern (5) sind derart mit an der Trommel (2) befestigten Wänden (10, 12, 13) umgeben, dass sie zusammen mit dem umgebenden Strahlgehäuse (1) im Bereich der Strahlbehandlungsstationen (8, 8a) eine abgedichtete Strahlkammer bilden. Der Abfluss des Strahlmittels und der abgestrahlten Teilchen ist durch die Anordnung der Strahlmittel-Abfluss-Kanäle (14) sowie durch deren labyrinthartige Verbindung mit den Aufnahmekammern (5) jederzeit gewährleistet.The multi-station beam treatment machine has a conveyor designed as a drum (2) for workpieces (6) held in a plurality of receiving chambers (5) by means of holding devices (21). The workpiece (6) lying in a receiving chamber (5) is conveyed by rotating the drum (2) in cycles in two blasting treatment stations (8, 8a), an unwinding station (9) and a loading and unloading station (7). The circumferentially evenly distributed receiving chambers (5) are surrounded by walls (10, 12, 13) attached to the drum (2) in such a way that, together with the surrounding blasting housing (1), they form a sealed blasting chamber in the area of the blasting treatment stations (8, 8a) form. The discharge of the abrasive and the blasted particles is ensured at all times by the arrangement of the abrasive discharge channels (14) and their labyrinthine connection to the receiving chambers (5).

Description

Die Erfindung betrifft eine Mehrstationenschleuderstrahlmaschine, wie sie im Oberbegriff von Anspruch 1 gekennzeichnet ist.The invention relates to a multi-station centrifugal jet machine, as characterized in the preamble of claim 1.

Eine Maschine der eingangs genannten Art ist bekannt (EP-Al 0021 359), bei welcher jedoch ein Abfliessen des Strahlmittels und der abgestrahlten Teilchen nicht in jeder Lage der Werkstück-Aufnahmekammern möglich ist. Aus diesem Grund werden bei dieser Maschine die beiden Strahlstationen im unteren Bereich angeordnet, was aber bedingt, dass beim Austrommeln, welches in der oben angeordneten Be- und Entladestation erfolgt, kein Strahlmittel und andere Teilchen abfliessen kann. Weiterhin ist nachteilig, dass die oben angeordnete Be- und Entladestation eine hohe Bauweise mit aufwendigen Ladeeinrichtungen erfordert, dass die Taktzeit durch die Summe der Austrommel-, der Entlade-und der Beladezeit bestimmt wird und dass durch die stirnseitige Halterung der Werkstücke für die verschiedenen Werkstückarten unterschiedliche Halteeinrichtungen erforderlich sind bzw. die Maschine zu wenig universell ist. Aufgabe der vorliegenden Erfindung ist die Schaffung einer Mehrstationenschleuderstrahlmaschine der eingangs genannten Art, welche trotz einer kompakten Bauweise und kurzer Durchlaufzeit für die Werkstücke ein Abfliessen des Strahlmittels und der abgestrahlten Teilchen aus jeder Werkstück-Aufnahmekammer auch in jeder Lage gewährleistet, so dass die günstigste Lage der Strahlbearbeitungsstation bzw. Stationen und der Be- und Entladestation wählbar ist. Ausserdem soll die Werkstück-Haltevorrichtung so ausgebildet sein, dass Werkstücke unterschiedlicher Form und Grösse ohne speziell angepasste Halteteile, so festgespannt werden können, dass eine allseitige Strahlbehandlung gewährleistet ist.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. In addition, 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.

Erfindungsgemäss wird dies durch die kennzeichnenden Merkmale von Anspruch 1 gelöst.According to the invention, this is solved by the characterizing features of claim 1.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den abhängigen Ansprüchen gekennzeichnet.Further advantageous embodiments of the invention are characterized in the dependent claims.

Durch die kennzeichnenden Merkmale von Anspruch 1 wird gewährleistet, dass das Strahlmittel und die abgestrahlten Teilchen aus jeder Aufnahmekammer und in jeder Lage dieser Kammern abfliessen kann.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.

Dadurch kann für jede Station wie z.B. Strahlen, Austrommeln und Be- und Entladen die günstigste Lage festgelegt werden, so dass eine kompakte und leicht beschickbare Bauweise ermöglicht wird.This means that for each station such as Blasting, tumbling and loading and unloading the most favorable location can be determined, so that a compact and easily loadable construction is possible.

Die Erfindung ist in den beiliegenden Zeichnungen beispielsweise dargestellt und nachfolgend beschrieben.The invention is illustrated in the accompanying drawings, for example, and described below.

Es zeigen:

  • Fig. 1 einen Querschnitt durch das Strahlgehäuse einer Mehrstationenstrahlbearbeitungsmaschine, und
  • Fig. 2 einen Längsschnitt von Fig. l.
Show it:
  • Fig. 1 shows a cross section through the beam housing of a multi-station beam processing machine, and
  • 2 shows a longitudinal section from FIG.

Die Mehrstationenstrahlbearbeitungsmaschine weist ein Strahlgehäuse 1 auf, in welchem ein senkrecht stehender, als Trommel 2 ausgebildeter Förderer um eine horizontale Achse 3 drehbar angeordnet-ist, wobei die Trommel 2 vorzugsweise durch einen Getriebemotor 4 antreibbar ist. Die Trommel 2 weist vier gleichmässig am Umfang verteilte Aufnahmekammern 5 für Werkstücke 6 auf, welche taktweise von einer Be- und Entladestation 7 in zwei Strahlbehandlungsstationen 8, 8a und eine Austrommelstation 9 des Strahlgehäuses 1 bringbar sind.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.

Die Trommel 2 weist an beiden Enden durch Stangen 11 miteinander verbundene Seitenwände 10 auf, welche zusammen mit annähernd radial verlaufenden Trennwänden 12, 13 die Aufnahmekammern 5 bilden. Die jeweils zwischen den Aufnahmekammern 5 mit Distanz zueinander angeordneten Trennwände 12 und 13 bilden jeweils einen an beiden Enden offene Strahlmittel-Abfluss-Kanal 14. Die Trennwände 12 verlaufen vom äusseren Umfang der Trommel.2 bis in den Zentrumsbereich der Trommel 2 mit einem seitlichen Abstand vom Trommelzentrum, wobei sie dort, sich gegenseitig überdeckend, Oeffnungen 15 bilden. Die Trennwände 13 verlaufen im äusseren Teil 13a parallel zu den Trennwänden 12 und weisen einen abgewinkelten, an den Stangen 11 vorbeiführenden und auf die nächstfolgende Trennwand 12 zulaufenden inneren Teil 13b auf, wobei dieser Teil dort mit der nächstfolgenden Trennwand 12 eine Oeffnung 16 bildet. Die Trennwände 12 und 13 sind somit im Zentrumsbereich der Trommel gegenseitig überdeckend angeordnet wobei durch die Oeffnungen 15 und 16 eine labyrinthartige Verbindung aller Aufnahmekammern 5 und Strahlmittel-Abfluss-Kanäle 14 hergestellt ist.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 and 13, each spaced apart from one another between the receiving chambers 5, form an abrasive discharge channel 14 open at both ends. 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.

Am Strahlgehäuse 1 sind vorzugsweise als Dichtleisten ausgebildete Dichtelemente 17, 18, 19 angeordnet, welche eine Abdichtung der Strahlstationen 8, 8a gegenüber der Be- und Entladestation 7 und der Austrommelstation 9, sowie dieser gegenüber der Be- und Entladestation 7 gewährleisten. Zwischen den rotierenden Seitenwänden 10 und dem Strahlgehäuse 1 sind ebenfalls Labyrinthdichtungen 20 angeordnet, wodurch zusammen mit den übrigen Abdichtungen und den Trennwänden im Bereich der Strahlstationen abgedichtete Strahlkammern vorhanden sind.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.

Jede Aufnahmekammer 5 weist eine Haltevorrichtung 21 für die Werkstücke 6 auf, welche mit einer Werkstückauflage 22 und mindestens einer, vorzugsweise zwei Spannvorrichtungen 23 versehen ist.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.

Die Werkstückauflage 22 ist beidseitig an je einem Lagerteil 24 befestigt, welche in an den beiden Seitenwänden lO angeordneten Lagern 25 um eine Drehachse 26 drehbar gelagert sind.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.

Jede der Haltevorrichtungen 21 ist durch je einen an einer Seitenwand 10 befestigten Getriebemotor 27 und einen Ketten- oder Riemenantrieb 28 antreibbar, so dass in jeder Station die Werkstücke individuell in Rotation versetzt werden können. Die Uebertragung der Energie für die mit der Trommel 2 rotierenden Getriebemotoren 27 erfolgt vorzugsweise durch Schleifringe.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.

Jede Spannvorrichtung 23 weist mindestens eine an einem Schwenkhebel 29 angeordnete Spannpratze 30 auf, wobei der - Schwenkhebel 29 mit der Spannpratze 30 an dem Lagerteil 24 schwenkbar gelagert ist und mittels eines z.B. als Feder ausgebildetem Kraftspeichers 31 gegen das Werkstück 6 gedrückt wird. Der Schwenkhebel 29 weist einen zweiten Hebelarm 32 auf, an welchem in der Be- und Entladestation 7 gemäss Pfeil 33 eine Betätigungseinrichtung 34 zum Abheben der Spannpratze 30 vom Werkstück 6 angreift. Die Betätigungseinrichtung kann ein elektro-mechanisch bzw. hydraulisch oder pneumatisch betätigbarer Stössel sein.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.

Die Werkstückauflage 22 ist als Rost 45 ausgebildet und an den beiden Lagerteilen 24 leicht auswechselbar und bzw. oder in der Höhe verstellbar befestigt, wodurch die Distanz 36 von der Auflageebene 35 zur Drehachse 26 veränderbar ist. Insbesonders für flache Werkstücke ist eine Anhebung des Rostes erforderlich damit diese auch zwecks einer gleichmässigen Strahlbehandlung einigermassen mittig zur Drehachse 26 gespannt werden können.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. In particular for flat workpieces, 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.

Die Be- und Entladestation weist eine durch eine absenkbare Türe 37 verschliessbare Oeffnung 38 auf, durch welche die Werkstücke 6 mittels einer Ladeeinrichtung 39 eingebracht bzw. entnommen werden.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.

Hierfür wird die Haltevorrichtung 21 in einer bestimmten Lage positioniert und die Werkstücke 6 dieser gemäss Pfeil 44 zugeführt.For this purpose, the holding device 21 is positioned in a specific position and the workpieces 6 are fed to it according to arrow 44.

Der untere Teil des Strahlgehäuses 1 weist eine Oeffnung 40 auf, unterhalb welcher ein Schwingförderer 41 für den Abtransport des Strahlmittels und der abgestrahlten Teilchen angeordnet ist.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.

An den Umfangswänden des Strahlgehäuses 1 sind Schleuderradeinheiten 42 befestigt, von denen jeweils vorzugsweise zwei oder mehrere einer Strahlbehandlungsstation 8 bzw. 8a zugehörig angeordnet sind.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.

Das Strahlgehäuse 1 ist an einem Rahmen 43 befestigt, auf welchem auch die Achse 3 der Trommel 2 drehbar gelagert ist und an dem der Getriebemotor 4 befestigt ist.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.

Die Arbeitsweise der hier beschriebenen Mehrstationenstrahlbearbeitungsmaschine ist wie folgt.The operation of the multi-station beam processing machine described here is as follows.

Ein oder mehrere Werkstücke 6 werden mittels der Ladeeinrichtung 39 durch die Oeffnung 38 der Be- und Entladestation 7 in eine Aufnahmekammer 5 gebracht und dort mittels den Spannpratzen 30 auf dem Rost 45 aufliegend in der Haltevorrichtung 21 durch Federkraft fest gehalten.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.

Anschliessend wird die Trommel 2 um 90° gedreht, wodurch die Werkstücke 6 in die erste Strahlbehandlungsstation 8 gelangen und gleichzeitig durch Einschalten des Getriebemotors 27 in Drehung versetzt, um sie allseitig mittels Schleuderstrahlen der Schleuderradeinheiten 42 zu behandeln. Gleichzeitig kann die zweite Aufnahmekammer 5 mit Werkstücken 6 beladen werden.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. At the same time, the second receiving chamber 5 can be loaded with workpieces 6.

Nach einer weiteren Drehung der Trommel 2 um 90° kommen die Werkstücke 6 in die zweite Strahlbehandlungsstation 8a und die dritte Aufnahmekammer 5 kann mit Werkstücken 6 beladen werden. Ist diese Strahlbehandlung beendet wird die Trommel 2 wieder um 900 gedreht und die fertig gestrahlten Werkstücke 6 gelangen in die Austrommelstation 9. Hier werden sie mittels des Getriebemotors 27 nochmals in Drehung versetzt um durch Austrommeln eine Entleerung der Werkstück-Hohlräume von Strahlmittel zu erreichen.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.

Durch eine weitere Drehung der Trommel 2 kommen die gereinigten Werkstücke in die Be- und Entladestation 7, wo sie mittels einer Positioniersteuerung am Getriebemotor 27 durch Drehen der Haltevorrichtung in die Entnahmelage gebracht werden.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.

Die leere Ladeeinrichtung 39 wird unter das bzw. die Werkstücke gefahren und durch Einschalten der Betätigungseinrichtung 34 werden die Spannpratzen gelöst, wodurch das Werkstück auf die Ladeeinrichtung 39 gelangt und mit dieser aus der Aufnahmekammer 5 entfernt wird.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.

Während dem Austrommeln bzw. dem Ent- und Beladen in den Stationen 9 und 7 können die übrigen Werkstücke in den Stationen 8, 8a strahlbehandelt werden, was durch die gegenseitige Abdeckung mittels der Trennwände 12 und 13 und der Abdichtung durch die Dichtungen 17, 18, 19 ermöglicht wird.During unrolling or unloading and loading in stations 9 and 7, the remaining workpieces can be beam-treated in stations 8, 8a, which is due to the mutual covering by means of the partition walls 12 and 13 and the sealing by the seals 17, 18, 19 is made possible.

Durch die Anordnung der Trennwände 12 und 13 zur Bildung von am Aussenumfang offenen Kanälen 14 und deren labyrinthartige Verbindung mit den Aufnahmekammern 5 im Zentrum der Trommel 2 ist ein Abfliessen des Strahlmittels und der abgestrahlten Teilchen auch während der Strahlbehandlung aus den Strahlstationen 8, 8a gewährleistet, so dass keine, Störungen verursachende Ansammlungen von diesem Material möglich sind. Dabei wird dieses Material derart abgeleitet, dass es weder den Vorgang des Austrommelns noch den des Be- und Entladens störend beeinflusst.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.

Die Zuordnung je eines Drehantriebes für die Werkstücke bei jeder Station ermöglicht unterschiedliche Drehzahlen, Drehrichtungen und Stillstandzeiten der Werkstücke in den einzelnen Stationen, sowie die Einhaltung einer bestimmten Haltestellung in der Be- und Entladestation.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.

Durch die Anordnung von vier Aufnahmekammern mit jeweils bis zu vier Werkstücken hintereinander entsteht eine kompakte Maschine mit hoher Leistungsfähigkeit wobei die Werkstücke gleichzeitig auch an beiden Stirnseiten strahlbehandelt werden.The arrangement of four receiving chambers, each with up to four workpieces one behind the other, creates a compact machine with high performance, whereby the workpieces are also beam-treated on both ends.

Die von Strahlmittel geschützten einzelnen Rotationsantriebe für die Werkstücke ermöglichen in jeder Strahlbehandlungsstation, und in der Austrommelstation die Anwendung unterschiedlicher Rotations-Abläufe für die Werkstücke, welche der Werkstückform angepasst werden können um eine gleichmässige Strahlbehandlung zu erreichen.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.

Die erfindungsgemässe Mehrstationenstrahlbehandlungsmaschine ist speziell für nicht trommelfähige Werkstücke, wie z.B. für Motorblöcke, Zylinderköpfe, Getriebegehäuse usw. geeignet.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.

Claims (10)

1. Mehrstationenstrahlbearbeitungsmaschine mit einem in einem Strahlgehäuse (1) in einer vertikalen Ebene umlaufenden kreisförmigen, als Trommel (2) ausgebildeten, Förderer, mittels welchem die mittels angetriebenen Haltevorrichtungen (21) drehbaren Werkstücke (6) in mehreren Aufnahmekammern (5) gehalten und durch mindestens eine Strahlbehandlungsstation (8, 8a) sowie eine Be- und Entladestation (7) gefördert werden, wobei jede Aufnahmekammer (5) mit an der Trommel (2) befestigten Wänden umgeben ist, welche zusammen mit dem umgebenden Strahlgehäuse (1) im Bereich der Strahlbehandlungsstation (8) bzw. den Strahlbehandlungsstätionen (8, 8a) mindestens eine Strahlkammer bilden, dadurch gekennzeichnet, dass zwischen den Aufnahmekammern (5) jeweils ein in radialer Richtung verlaufender Kanal (14) angeordnet ist, welcher im Zentrumsbereich der Trommel (2) jeweils mit den Aufnahmekammern (5) labyrinthartig verbunden ist.1. Multi-station beam processing machine with a circular conveyor, designed as a drum (2), rotating in a blasting housing (1) in a vertical plane, by means of which the workpieces (6) rotatable by means of driven holding devices (21) are held in a plurality of receiving chambers (5) and through at least one blasting treatment station (8, 8a) and a loading and unloading station (7) are conveyed, each receiving chamber (5) being surrounded by walls attached to the drum (2) which, together with the surrounding blasting housing (1), are in the region of the Blasting treatment station (8) or the blasting treatment stations (8, 8a) form at least one blasting chamber, characterized in that between the receiving chambers (5) there is in each case a channel (14) running in the radial direction, which in the central region of the drum (2) is connected to the receiving chambers (5) like a labyrinth. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jeder Kanal (14) durch Trennwände (13, 14) der Kammern (5) gebildet ist, wobei diese im Zentrumsbereich der Trommel (2) gegenseitig überdeckend mit die Kammern (5) und die Kanäle (14) verbindenden Oeffnungen (15, 16) angeordnet sind.2. Device according to claim 1, characterized in that each channel (14) by partition walls (13, 14) of the chambers (5) is formed, these being in the center region of the drum (2) mutually overlapping with the chambers (5) and the channels (14) connecting openings (15, 16) are arranged. 3. Maschine nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Trommel (2) vier Aufnahmekammern (5) aufweist, welche jeweils taktweise von der Be- und Entladestation (7) in zwei Strahlbehandlungsstationen (8, 8a) und eine Austrommel-Station (9) bringbar sind.3. Machine according to one of claims 1 or 2, characterized in that the drum (2) has four receiving chambers (5), each of which is intermittently from the loading and unloading station (7) in two beam treatment stations (8, 8a) and a discharge drum -Station (9) can be brought. 4. Maschine nach Anspruch 3, dadurch gekennzeichnet, dass die Be- und Entladestation (7) seitlich horizontal angeordnet ist und durch eine im Strahlgehäuse (1) seitlich angeordnete schliessbare Oeffnung (37) beschickbar ist, dass die Austrommel-Station (9) im unteren Bereich der Strahlkammer (1) und die beiden Strahlstationen (8, 8a) jeweils gegenüber diesen beiden Stationen (7, 9) angeordnet sind.4. Machine according to claim 3, characterized in that the loading and unloading station (7) is arranged laterally horizontally and can be fed through a closable opening (37) arranged laterally in the blasting housing (1) that the unwinding station (9) in the the lower region of the blasting chamber (1) and the two blasting stations (8, 8a) are each arranged opposite these two stations (7, 9). 5. Maschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Haltevorrichtung (21) für die Werkstücke (6) eine beidseits in der Aufnahmekammer (5) gelagerten Werkstück-Auflage (22) und mindestens eine mittels eines Kraftspeichers (31) spannende und an einem Schwenkhebel (29) angeordnete Spannpratze (30) aufweist.5. Machine according to one of claims 1 to 4, characterized in that the holding device (21) for the workpieces (6) a workpiece support (22) mounted on both sides in the receiving chamber (5) and at least one by means of an energy store (31) has exciting and on a swivel lever (29) arranged claw (30). 6. Maschine nach Anspruch 5, dadurch gekennzeichnet, dass am Schwenkhebel (29) mindestens eine Angriffsfläche angeordnet ist, an welcher an der Be- und Entladestation (7) eine Betätigungseinrichtung (34) zum Abheben der Spannpratze (30) angreift.6. Machine according to claim 5, characterized in that at least one engagement surface is arranged on the swivel lever (29), on which an actuating device (34) for lifting the clamping claw (30) acts on the loading and unloading station (7). 7. Maschine nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass der Kraftspeicher (31) eine Feder ist, welche an dem Schwenkhebel (29) angreift.7. Machine according to one of claims 5 or 6, characterized in that the energy accumulator (31) is a spring which acts on the pivot lever (29). 8. Maschine nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass jede der in den Aufnahmekammern (5) drehbaren Haltevorrichtungen (21) einen eigenen ausserhalb der Aufnahmekammer (5) an der Trommel (2) angeordneten Drehantrieb (27, 28) aufweist.8. Machine according to one of claims 1 to 7, characterized in that each of the rotatable in the receiving chambers (5) holding devices (21) has its own outside of the receiving chamber (5) on the drum (2) arranged rotary drive (27, 28) . 9. Maschine nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, dass die Werkstück-Auflage (22) einen aus zwei oder mehreren Stangen gebildeten Rost (45) aufweist, wobei die Auflage-Ebene (35) für die Werkstücke zu der Drehachse der Haltevorrichtung eine Distanz (36) aufweist.9. Machine according to one of claims 5 to 8, characterized in that the workpiece support (22) has a grate (45) formed from two or more rods, the support plane (35) for the workpieces to the axis of rotation of the Holding device has a distance (36). 10. Maschine nach Anspruch 9, dadurch gekennzeichnet, dass die Distanz (36) veränderbar ist.10. Machine according to claim 9, characterized in that the distance (36) is variable.
EP84101328A 1983-03-21 1984-02-09 Multiposition blasting machine Expired EP0120247B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1519/83 1983-03-21
CH1519/83A CH657085A5 (en) 1983-03-21 1983-03-21 MULTI-STATION BEAM PROCESSING MACHINE.

Publications (3)

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

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ID=4212335

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Application Number Title Priority Date Filing Date
EP84101328A Expired EP0120247B1 (en) 1983-03-21 1984-02-09 Multiposition blasting machine

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US (1) US4577441A (en)
EP (1) EP0120247B1 (en)
CH (1) CH657085A5 (en)
DE (1) DE3470863D1 (en)

Cited By (4)

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EP0291707A2 (en) * 1987-05-16 1988-11-23 FRIEDRICH GOLDMANN GMBH & CO. Sandblast cabinet
FR2750634A1 (en) * 1996-07-02 1998-01-09 Gen Traitements De Surfaces Assembly for distressing jeans
KR100815871B1 (en) 2007-04-25 2008-03-24 삼진쇼트기계공업 주식회사 Consecutive type shot blasting machine
KR100869970B1 (en) 2007-04-25 2008-11-21 삼진쇼트기계공업 주식회사 consecutive type shot blasting machine

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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
US6276374B1 (en) 2000-01-25 2001-08-21 Cae Ransohoff Inc. Rotary style parts cleaning machine with a pocketed wheel
US6286523B1 (en) 2000-01-25 2001-09-11 Cae Ransohoff Inc. Parts transport mechanism for a rotary style parts treating machine
US20040101609A1 (en) * 2002-11-26 2004-05-27 Mulder Gary E. Apparatus for perforating food crop seed, and method
CN111571452B (en) * 2020-05-28 2021-06-15 常熟致圆微管技术有限公司 Stainless steel material surface treatment device

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US4387537A (en) * 1981-05-01 1983-06-14 Iowa Engineered Processes Corp. Deburring and cleaning machine and process

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0291707A2 (en) * 1987-05-16 1988-11-23 FRIEDRICH GOLDMANN GMBH & CO. Sandblast cabinet
EP0291707A3 (en) * 1987-05-16 1990-03-14 Goldmann Friedrich Gmbh & Co Sandblast cabinet
FR2750634A1 (en) * 1996-07-02 1998-01-09 Gen Traitements De Surfaces Assembly for distressing jeans
KR100815871B1 (en) 2007-04-25 2008-03-24 삼진쇼트기계공업 주식회사 Consecutive type shot blasting machine
KR100869970B1 (en) 2007-04-25 2008-11-21 삼진쇼트기계공업 주식회사 consecutive type shot blasting machine

Also Published As

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

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