DE895573C - Method and device for feeding the cleaning sand onto the blades of sand spinners - Google Patents

Method and device for feeding the cleaning sand onto the blades of sand spinners

Info

Publication number
DE895573C
DE895573C DEB8037D DEB0008037D DE895573C DE 895573 C DE895573 C DE 895573C DE B8037 D DEB8037 D DE B8037D DE B0008037 D DEB0008037 D DE B0008037D DE 895573 C DE895573 C DE 895573C
Authority
DE
Germany
Prior art keywords
sand
blades
centrifugal
cleaning
spinners
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
DEB8037D
Other languages
German (de)
Inventor
Franz Holeczek
Gustav Sahler
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.)
Berger Maschinenfabriken G M B
Original Assignee
Berger Maschinenfabriken G M B
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 Berger Maschinenfabriken G M B filed Critical Berger Maschinenfabriken G M B
Priority to DEB8037D priority Critical patent/DE895573C/en
Application granted granted Critical
Publication of DE895573C publication Critical patent/DE895573C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/06—Impeller wheels; Rotor blades therefor
    • B24C5/068—Transferring the abrasive particles from the feeding means onto the propeller blades, e.g. using central impellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)

Description

Das Beschicken von Sanidschleudern, insbesondere Putzsandschleudern, die zum Putzen von Guß- und Schmiedestücken dienen, erfolgt in der Form, @daß der Putzsand in Teilmengen auf die umlaufenden Schaufeln gelangt, von denen er als Strahl auf idie in dem zugehörigen Arbeitsraum befindlichen Gegenstände trifft.The loading of Sanid extractors, especially cleaning sand extractors, which are used for cleaning castings and forgings, takes place in the form, @ that the Partial amounts of cleaning sand get onto the rotating blades, from which it forms a jet encounters the objects in the associated work area.

Der Zuteiler wird meist aus einem umlaufenden Zellenrad od. dgl. gebildet, derdie Sandteilmenge in den Bewegungsbereich -der Schleuderschaufeln wirft oder schiebt. Verteiler dieser Bauform sind einem außerordentlichen Verschleiß unterworfen. Dieser ist besonders groß, wenn Stahlsand zur Anwendung kommt; er wirkt sich ungünstig auf die ordnungsgemäße Sandzuteilung aus.The dispenser is usually made of a rotating cellular wheel or the like. which throws the partial amount of sand into the range of motion of the centrifugal blades or pushes. Distributors of this type are subject to extraordinary wear. This is particularly great when steel sand is used; he has an unfavorable effect on the proper allocation of sand.

Erfindungsgemäß wird die Anwendung eines Verfahrens vorgeschlagen, bei dem der in Vibration gehaltene Putzsand unter konstantem Druck, in stetigem Fluß bleibend, in den Bereich der Schleuderschaufeln gelangt. Dazu kann ein der Sandaufgabe dienendes Rohr Verwendung finden, dessen unteres, nach aufwärts: gebogenes. Ende auf die Schleuderschaufeln gerichtet istunddessen Ausflußmündung unmittelbar einer Kantenbahn den Schaufeln vorgelagert ist. Zweckmäßig wird hierbei das Ausflußende des. Zuleitrohres. in Iden zentralen Freiraum zwischen den Schaufeln eingeführt und radial auf die Schaufeln gerichtet.According to the invention, the use of a method is proposed in which the cleaning sand kept vibrating under constant pressure, in steady Steady flow, got into the area of the centrifugal vanes. One of the Use a pipe that serves as a sand feed, the lower one of which is bent upwards. The end is directed at the centrifugal vanes and its discharge mouth immediately an edge track is upstream of the blades. The outflow end is useful here of the. supply pipe. introduced into the central space between the blades and directed radially towards the blades.

In der Zeichnung ist eine Ausführungs.mäglichkeit zur Anwendung der Erfindung sc'hematisc'h dargestellt.The drawing shows one possible implementation of the Invention presented schematically.

Mit a ist das Sandaufgaberohr bezeichnet, idessen Ausflußende b radial aufwärts gerichtet ist und sich in dem zentralen Freiraum zwischen den Schaufeln c des Schaufelrades d befindet. Wie aus der Zeichnung ersichtlich ist, liegt die Mündungsfläche des Rohrschenkels b im nahen Bereich der Bewegungskreisbahn, die die nach der Drehachse gelegenen (Querkanten der Schaufeln c beschreiben. In der Zeicbnurng ist eine aus. der Rohrmündung vorgedrungene Teilmenge des Sandes angedeutet; diese liegt im Bereich der Bewegungsbahn der Schaufeln und wird jeweils von diesen erfaßt und nachÜberlaufen der Schaufelflächen abgeschleudert.The sand feed pipe is denoted by a, its outflow end b being radial is directed upwards and is located in the central space between the blades c of the paddle wheel d is located. As can be seen from the drawing, the Muzzle surface of the pipe leg b in the vicinity of the circular path that describe the transverse edges of the blades c located after the axis of rotation Zeicbnurng is one out. the subset of the sand that has penetrated the mouth of the pipe indicated; this lies in the area of the movement path of the blades and is controlled by them detected and thrown off after overflowing the blade surfaces.

Durch die Vibrierbewegung des, Rohres ca wird, wie die Erfahrung gezeigt hat, der den Ausgleich anstrebende Druck der Sandsäule auf den in dem Auslaufrohrschenkel b befindlichen Putzsand wachgehalten, so daß dieser in stetigem Nachdrängen aus der Rohrmündung heraus und in den Schaufelbereich gedrängt wird.As experience shows, the vibrating movement of the pipe approx has the pressure of the sand column striving for equalization on the leg in the outlet pipe b located cleaning sand kept awake, so that this is in constant pushing out the muzzle is pushed out and into the blade area.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Aufbringen von Teilmengen des in stetigem Zufluß herangeführten Putzsandes auf die Schleuderschaufeln von Sandschleudern, insbesondere von Gußputzmaschinen, dadurch gekennzeichnet, daß das Eindringen des in Vibration gehaltenen Putzsandes in den Bewegungsbereich der Schaufeln unter konstantem Druck erfolgt. z. Vorrichtung -zur Durchführung des Verfahrens nach dem Anspruch i, gekennzeichnet durch ein Sandaufgaberohr, idessen unteres, nach aufwärts abgebogenes Ende auf die Schleuderschaufeln berichtet ist und dessen Ausflußmündung unmittelbar einer Kantenbahn der Schleuderschaufeln vorgelagert ist. 3. Vorrichtung mach Anspruch :2, dadurch gekennzeichnet, daß das Ausflußende des Zuleitrohres in den zentralen Freiraum zwischen .den Schaufeln eingeführt und, radial auf die Schaufeln gerichtet ist.PATENT CLAIMS: i. Method for applying partial amounts of the in steady influx of cleaning sand brought to the centrifugal shovels of sand centrifuges, in particular of cast plastering machines, characterized in that the penetration of the cleaning sand kept in vibration in the range of motion of the shovels under constant Printing takes place. z. Device for performing the method according to claim i, characterized by a sand feed pipe, idessen lower, bent upwards The end is reported on the centrifugal vanes and its discharge mouth immediately is upstream of an edge path of the centrifugal blades. 3. Device make claim : 2, characterized in that the outflow end of the supply pipe in the central Clearance between .den blades introduced and directed radially towards the blades is.
DEB8037D 1943-02-19 1943-02-19 Method and device for feeding the cleaning sand onto the blades of sand spinners Expired DE895573C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB8037D DE895573C (en) 1943-02-19 1943-02-19 Method and device for feeding the cleaning sand onto the blades of sand spinners

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB8037D DE895573C (en) 1943-02-19 1943-02-19 Method and device for feeding the cleaning sand onto the blades of sand spinners

Publications (1)

Publication Number Publication Date
DE895573C true DE895573C (en) 1953-11-26

Family

ID=6955655

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB8037D Expired DE895573C (en) 1943-02-19 1943-02-19 Method and device for feeding the cleaning sand onto the blades of sand spinners

Country Status (1)

Country Link
DE (1) DE895573C (en)

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