DE446961C - Paint mill with mixing device arranged above the comminution device - Google Patents

Description

There are already paint mills known in which above the comminution device a mixer with a worm gear carried by a vertical shaft S offset against each other, inclined in the sense of axial conveyance and against the Rotation axis curved mixing arms is arranged.

The paint mill according to the invention .kenn-

to is characterized in that the shredding device consists of an emptying slide o. The like. Interrupted grinding table, curved on the surface Ribs are arranged over which a plurality of mixing arms arranged in a plane sweep tightly. Also in other levels than just the lowest level Several mixing arms can be arranged in the mixing device instead of one mixing arm each be.

The figures show an 'embodiment of the invention, namely

Fig. Ι an elevation in section, _t - Fig. 2 a section along line AB to Fig. I,

Fig. 3 is a partial side view of Fig. Ι in section,

Fig. 4 is a plan of the mixer, Fig. 5 is a section along line CD to Fig. R, and

Fig. 6 a section along the line RF to Fig. I.

In a funnel / which can be closed by a lid ο; an axial shaft c is arranged, which can be set in rotation by bevel gears d. Shaft c , secured against rotation, carries a multitude of mixing arms e inside the funnel b , the lengths of which decrease from top to bottom according to the inclination of the funnel and the effective surfaces of which, as can be seen in Fig. 5, are slightly inclined against the direction of rotation so that the mix contained in the funnel upwards depending on the direction of rotation

or is conveyed axially downwards. The mixing arms e are offset from one another in height and laterally in the manner of a screw (Fig. 1 and 4). In general, a mixing arm is arranged in a horizontal plane. Only in the three such

■ The following levels are each two levels

Mixing arms offset by 180 ° are provided

(Fig. 1). The grinding device consists of a plurality of arms f arranged in a common plane, which have the shape and curvature of the mixing arms e (Fig. Ι and 6) and which run over a grinding table g which is equipped with resistance ribs Ji curved in a corresponding manner. Milling table g is interrupted by an emptying slide i , the opening of which opens into a drain channel k.

The mode of operation of the paint mill is as follows:

The paint to be mixed and ground is brought into the funnel together with oil and the mixing device is set in rotation in the direction of the arrow in Fig. 4. The mix is conveyed downwards against the grinding device. The curved design of the mixing arms ensures that the material to be mixed does not press against the funnel wall under the influence of centrifugal force. Once on the grinding table, the material to be mixed is grasped by the grinding arms /, which interact with the ribs /; bring about a quick and effective grinding. Mixing and grinding takes place in a significantly shorter time than with the previously known mills. The contents are also emptied in an extremely short time after opening the slide i through channel k.

Claims (2)

Patent claims: i. Paint mill with mixing device arranged above the comminution device with, carried by a vertical shaft, offset from one another like a helix, in the sense of the axis Alen conveying inclined mixing arms curved against the axes of rotation, thereby characterized in that the comminuting device consists of an interrupted by an emptying slide (; ') or the like Milling table (, £ f), on whose Surface curved ribs (//) are arranged, over which several mixing arms (/) arranged in a ibene close together sweep away. 2. Embodiment of the paint mill according to claim 1, characterized in that a plurality of mixing arms (c) are arranged instead of one mixer each in planes other than only in the lowermost khene of the mixing device. 1 sheet of drawings.