EP0037914B1 - Blasting apparatus for workpièces - Google Patents

Blasting apparatus for workpièces Download PDF

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Publication number
EP0037914B1
EP0037914B1 EP19810102022 EP81102022A EP0037914B1 EP 0037914 B1 EP0037914 B1 EP 0037914B1 EP 19810102022 EP19810102022 EP 19810102022 EP 81102022 A EP81102022 A EP 81102022A EP 0037914 B1 EP0037914 B1 EP 0037914B1
Authority
EP
European Patent Office
Prior art keywords
trough belt
trough
workpièces
rubber
workpieces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19810102022
Other languages
German (de)
French (fr)
Other versions
EP0037914A1 (en
Inventor
Johannes P. Zeidler
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.)
Alfred Gutmann Gesellschaft fur Maschinenbau & Co GmbH
Original Assignee
Alfred Gutmann Gesellschaft fur Maschinenbau & Co 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 Alfred Gutmann Gesellschaft fur Maschinenbau & Co GmbH filed Critical Alfred Gutmann Gesellschaft fur Maschinenbau & Co GmbH
Publication of EP0037914A1 publication Critical patent/EP0037914A1/en
Application granted granted Critical
Publication of EP0037914B1 publication Critical patent/EP0037914B1/en
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
    • B24C3/26—Abrasive blasting machines or devices; Plants essentially provided with means for moving workpieces into different working positions the work being supported by barrel cages, i.e. tumblers; Gimbal mountings therefor

Definitions

  • the invention relates to a device for blasting workpieces by at least one centrifugal unit, which emits into a trough belt drum formed by a trough belt made of rubber lamellae, and to a loading and emptying device.
  • the endless trough belt runs around the corresponding pulleys and is driven independently.
  • the trough is laterally delimited on the front sides by side windows.
  • the workpieces are introduced into the trough belt drum formed in this way, circulated and irradiated with the aid of the centrifugal machines.
  • the slats or links of the trough belt are made entirely of rubber. This material is subject to a relatively large amount of wear due to abrasion and in particular cuts from sharp-edged workpieces, so that the service life of the trough belt is relatively short in certain applications (see, for example, DE-A-2 557 909 and US-A-2204636).
  • the invention has for its object to provide a device of the type mentioned, the trough belt is exposed to much less wear in certain applications.
  • the rubber lamellae of the trough belt are provided with a metal coating on the side facing the centrifugal unit (s).
  • the metal pad consists of a low-wear material quality, e.g. B. Cast steel.
  • the device shown in the drawing consists of a housing 1, in the upper region of which a centrifugal unit 2 is arranged.
  • the centrifugal unit 2 emits into a trough belt drum, which is formed by an encircling trough belt 3 and side windows 4.
  • the trough belt 3 is driven at 5.
  • a swivel container is provided for loading, which is also shown in broken lines in the position in which the trough belt drum is loaded.
  • a rubber blade 7 is shown, which is provided with a wear protection pad 8 made of metal.
  • the cast steel support 8 extends as far as the circumference, as dictated by the possible wear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Belt Conveyors (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Centrifugal Separators (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Strahlen von Werkstücken durch mindestens ein Schleuderwerk, das in eine durch ein Muldenband aus Gummilamellen gebildete Muldenbandtrommel abstrahlt, sowie mit einer Beschikkungs- und Entleerungsvorrichtung.The invention relates to a device for blasting workpieces by at least one centrifugal unit, which emits into a trough belt drum formed by a trough belt made of rubber lamellae, and to a loading and emptying device.

Es sind Vorrichtungen der eingangs genannten Art in der unterschiedlichsten Weise bekannt. Das endlose Muldenband läuft um entsprechende Umlenkrollen um und wird selbständig angetrieben. Die Mulde wird an den Stirnseiten durch Seitenscheiben seitlich begrenzt. Die Werkstücke werden in die auf diese Weise gebildete Muldenbandtrommel eingegeben, umgewälzt und mit Hilfe der Schleuderwerke bestrahlt. Bei bekannten Vorrichtungen bestehen die Lamellen bzw. Glieder des Muldenbandes vollständig aus Gummi. Dieser Werkstoff ist einem verhältnismäßig großen Verschleiß durch Abrieb und insbesondere Schnittverletzungen durch scharfkantige Werkstücke ausgesetzt, so daß die Lebensdauer des Muldenbandes bei bestimmten Anwendungsfällen verhältnismäßig gering ist (siehe z. B. DE-A-2 557 909 und US-A-2204636).Devices of the type mentioned in the most varied of ways are known. The endless trough belt runs around the corresponding pulleys and is driven independently. The trough is laterally delimited on the front sides by side windows. The workpieces are introduced into the trough belt drum formed in this way, circulated and irradiated with the aid of the centrifugal machines. In known devices, the slats or links of the trough belt are made entirely of rubber. This material is subject to a relatively large amount of wear due to abrasion and in particular cuts from sharp-edged workpieces, so that the service life of the trough belt is relatively short in certain applications (see, for example, DE-A-2 557 909 and US-A-2204636).

Der Erfindung liegt nun die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, deren Muldenband bei bestimmten Anwendungsfällen einem sehr viel geringeren Verschleiß ausgesetzt ist.The invention has for its object to provide a device of the type mentioned, the trough belt is exposed to much less wear in certain applications.

Diese Aufgabe wird dadurch gelöst, daß die Gummilamellen des Muldenbandes auf der dem oder den Schleuderwerken zugewandten Seite mit einer Metallauflage versehen sind. In vorteilhafter Weise besteht die Metallauflage aus einer verschleißarmen Materialgüte, z. B. Stahlguß.This object is achieved in that the rubber lamellae of the trough belt are provided with a metal coating on the side facing the centrifugal unit (s). Advantageously, the metal pad consists of a low-wear material quality, e.g. B. Cast steel.

Mit Hilfe eines Vulkanisationsverfahrens werden Gummi- und Metall- bzw. Stahlgußauflage miteinander verbunden, wobei die Auflage nur dort vorhanden zu sein braucht, wo ein Verschleiß zu erwarten ist, d. h. nur auf der im Betrieb oben liegenden Seite. Es hat sich erstaunlicherweise gezeigt, daß sich die Metallauflage so gut mit den Gummilamellen verbinden läßt, daß die übrigen Eigenschaften des Muldenbandes wie Schalldämpfung, Falldämpfung der Werkstücke erhalten bleiben, gleichzeitig aber die Lebensdauer erheblich verlängert wird.With the help of a vulcanization process, rubber and metal or cast steel pads are connected to one another, the pad only having to be present where wear is to be expected, i.e. H. only on the top side during operation. Surprisingly, it has been shown that the metal coating can be connected so well to the rubber lamellas that the other properties of the trough belt, such as sound absorption and fall damping of the workpieces, are retained, but at the same time the service life is considerably extended.

Im folgenden wird die Erfindung unter Hinweis auf die Zeichnung anhand eines Ausführungsbeispiels näher erläutert. Es zeigt

  • Fig. 1 eine schematische Seitenansicht einer Vorrichtung nach der Erfindung und
  • Fig. eine Seitenansicht einer Lamelle mit Stahlgußauflage.
The invention is explained in more detail below with reference to the drawing using an exemplary embodiment. It shows
  • Fig. 1 is a schematic side view of a device according to the invention and
  • Fig. A side view of a slat with cast steel support.

Die in der Zeichnung dargestellte Vorrichtung besteht aus einem Gehäuse 1, in dessen oberem Bereich ein Schleuderwerk 2 angeordnet ist. Das Schleuderwerk 2 strahlt in eine Muldenbandtrommel ab, die durch ein umlaufendes Muldenband 3 und Seitenscheiben 4 gebildet wird. Das Muldenband 3 wird bei 5 angetrieben. Zur Beschickung ist ein Schwenkbehälter vorgesehen, der gestrichelt auch in der Stellung dargestellt ist, in der die Muldenbandtrommel beschickt wird.The device shown in the drawing consists of a housing 1, in the upper region of which a centrifugal unit 2 is arranged. The centrifugal unit 2 emits into a trough belt drum, which is formed by an encircling trough belt 3 and side windows 4. The trough belt 3 is driven at 5. A swivel container is provided for loading, which is also shown in broken lines in the position in which the trough belt drum is loaded.

In Fig. 2 ist eine Gummilamelle 7 dargestellt, die mit einer Verschleißschutzauflage 8 aus Metall versehen ist. Die Stahlgußauflage 8 erstreckt sich soweit über den Umfang, wie es durch den möglichen Verschleiß vorgegeben ist.In Fig. 2 a rubber blade 7 is shown, which is provided with a wear protection pad 8 made of metal. The cast steel support 8 extends as far as the circumference, as dictated by the possible wear.

Claims (1)

  1. Apparatus for slot-blasting of workpieces with a centrifugal wheel, which throws the blasting material in a trough belt drum defined by a trough belt made out of rubber segments and having a loading- and a discharge means, characterized in that the rubber segments (7) of the trough belt (3) are provided on the side directed to the centrifugal wheel (2) with a metall coating of wear resistant material.
EP19810102022 1980-04-11 1981-03-18 Blasting apparatus for workpièces Expired EP0037914B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803014030 DE3014030C2 (en) 1980-04-11 1980-04-11 Device for blasting workpieces
DE3014030 1980-04-11

Publications (2)

Publication Number Publication Date
EP0037914A1 EP0037914A1 (en) 1981-10-21
EP0037914B1 true EP0037914B1 (en) 1984-09-19

Family

ID=6099804

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810102022 Expired EP0037914B1 (en) 1980-04-11 1981-03-18 Blasting apparatus for workpièces

Country Status (2)

Country Link
EP (1) EP0037914B1 (en)
DE (1) DE3014030C2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2204636A (en) * 1938-09-24 1940-06-18 American Foundry Equip Co Apparatus for treating metal articles
US2305451A (en) * 1940-05-17 1942-12-15 American Foundry Equip Co Apparatus for treating metal articles
US2563084A (en) * 1948-05-01 1951-08-07 American Wheelabrator & Equipm Continuous tumbling mill
US3048947A (en) * 1959-07-23 1962-08-14 Pangborn Corp Abrasive blasting apparatus
US3691690A (en) * 1970-10-16 1972-09-19 Carborundum Co Abrasive blast cleaning arrangement

Also Published As

Publication number Publication date
EP0037914A1 (en) 1981-10-21
DE3014030C2 (en) 1983-12-15
DE3014030B1 (en) 1981-02-19

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