DE1975633U - DEVICE FOR CONVEYING ABRASIVES. - Google Patents

Description

Patent attorneys ** "· ^" ö j H j * J Q. ffi β /

'Dipl.-inx κ. Sesiz et al.
Dipl.-Ing. Lemprecht 410-10.235H-TpOr (7) 'y

Munich 22, Steinidorfstr. 10 Γ

C 12 674 / 67b Sbm 1 3, Oct. 1967

Device for conveying abrasives

This guideline relates to improvements on devices of abrasive circulation devices, in particular for sound processing machines, whereby the abrasive especially when it is suspended in water, it is primarily oriented the! firing on devices that apply an abrasive to the point of contact between the workpiece to be machined and bring to the tool. The abrasive is with a concentration suspended from about 30 to 40 percent by volume of a liquid *

Such a device is known with a processing trough, the bottom of which is narrowed in the shape of a funnel downwards, one (or several) abrasive jet nozzles arranged at certain point (s) (η) as well as abrasive supply and removal lines «

The purpose of the increase in prices is to make such devices better suited to the To adapt the requirements of the practice as has been done so far, especially in that there is no abrasive in one place of the abrasive circulation settles.

laughing at the hiring is mainly a processing trough with

conical convex bottom used; an abrasive is directed onto the upper part of this trough with at least two alignable beams, at the top of the cone of this base abrasive is distributed by a likewise conical and hollow, retracted spray head, the supply lines of the abrasive branch off from a collecting line, which is fed symmetrically at both ends by a circulation pump, two further lines are connected to two extraction openings provided in the lower part of the conical trough bottom and lead the abrasive back to the pump.

In the drawing, the inflation is illustrated for example; show it:

Mg. 1 is a plan view of the device according to FIG

Innovation;

3? Ig «2 a vertical section along line a-a of the 3? Ig» 1 »

As can be seen from the drawing, the processing takes place in a trough 1, the bottom 2 of which essentially has the shape has a convex cone and its upper part made of Plexiglas walls consists. The trough 1 carries stops 4 on its two side walls, on which a workpiece holder 5 can rest. The workpiece holder 5 consists of a solid metal block on which the workpiece is attached or, in particular, glued

Take the workpiece in the desired position in the trough.

The circulation of the abrasive or »the abrasive suspension is brought about by a pump 6, which consists of a rubber housing and a screw. The pump 6 becomes through the. Motor 7 driven; it sucks in via the line 8 and delivers via the line 9 The line 9 forks into lines 10 and 11, which lead to a manifold 12, which they feed symmetrically at both ends and which are continuously from Funded funds will flow through. Blind spots are avoided, so that no abrasive can deposit. Three further lines 13, 14 and 15 are connected to the collecting line 12, the taps 16, 17 and 18 have. The two lines 13 and 15 lead the abrasive to two straightenable nozzles 19 and 20. The nozzles 19 and 20 are inserted into ball joint bushings 21, which are in the upper rope in the Plexiglas walls 3 of the Processing troughs are built in. All in all, there are a number of such ball joints attached to the perimeter of the wall Select the suitable ball joints 21 according to the position of the holder 5 on the stops, attach the directional nozzles 19 and 20 there and direct the beams onto the point of contact between workpiece and tool (both not shown).

The line 14 carries abrasives via a pipe 22 in the lower

Λ - 4 -

ren part of the trough 1 up to a spray head 23 ». the one on the Cone 2 sits, itself has the shape of a cone and has holes 24 on the lower palm of the hand »The abrasive flows through these holes 24- and "sweeps" over the smooth surface of the Cone 2 and so continually washes the bottom of the trough 1 «Two further lines 25 and 26, which are symmetrical at the bottom of the trough 1 are connected, lead the abrasive to line 27 » which in turn leads to the suction line 8 of the pump.

You can optionally change the spray head 23 such that the flow of abrasive does not spread evenly on a cone of rotation, but is adapted to the shape of the trough, which does not have a complete Eotationskorperform. With this adaptation, the washing of the bottom of the trough 1 can still be improved. The spray head 23 can in this lall with the top and underlying holes are provided, which are on two conical surfaces with opening angles of about 30 °, but with oppositely directed cone tips and axes perpendicular to the axis of the pressure line 22 which feeds the spray head.

The firing is not limited to the selected exemplary embodiment and the use described; rather it embraces all possible variants «

Claims (2)

P.A.596 31.3 * 18.10.6? - 5 -
Sehutzan claims Support financially
1 * Device for the WHMBXSSK of abrasives, especially in suspension with water, for machine tools working with an overhead view with a processing trough and abrasive jet nozzles as well as abrasive supply and removal lines, characterized by a processing trough (1) with a conically convex bottom (2) and on the one hand at least two Directional jet nozzles (19, 20) on the upper part of the processing trough (1), on the other hand a conical and in the lower part hollow or retracted spray head (23)> with the abrasive supply lines (.13 »14, 15) to one at both ends symmetrically from The collecting line (12) fed to the circulating pump (6) is connected and two further symmetrical extraction lines (25> 26) are attached to the bottom part of the processing trough and serve to return the abrasive to the pump (6). 2. Apparatus according to claim 1, characterized in that the The spray head (23) has holes above and below, those on two conical surfaces with apex angles of approximately 30 °, but with oppositely directed cone tips and axes perpendicular to the axis of the pressure line (22) feeding the spray head »