DE1276427B - Sorting device - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CI .:

B 07b

German KI .: 50 d - 20/04

Number: 1276427

File number: P 12 76 427.1-23 (G 50685)

Filing date: July 20, 1967

Opening day: August 29, 1968

The invention relates to a device for sorting arable or horticultural products according to their size with two forming a sorting gap and enclosing an angle transversely to the direction of movement and in the direction of movement to a widening gap diverging, driven, endless belts, which on the side facing away from the sorting gap over fixed bevels are led.

In known devices, the bands are made of elastic material, e.g. B. rubber. The thicker that The tape is, the less damage occurs to fruit on the one hand, and the less sharp it follows on the other hand, the tape of the associated guide and the more inaccurate is the sorting.

With the invention, a device is intended to be the initially mentioned kind are created, with the fruits more precisely and at the same time without danger or with are to be sorted with less risk of damage.

To solve this problem, the invention proposes that at least one of the slopes is coated with rubber-elastic material at least on the side facing the endless belt. In this case, the coating provides an alternative for the fruits that are at risk of that they get caught. The thickness of the layer of resilient material is out of consideration for one limited to the flexibility of the tape. The associated tape can be thin and be flexible and thus adapt sharply to the guide.

The invention is of great importance because the fruits in the sorting gap during their transport don't lie still. The invention is particularly important for a sorting machine whose belts with a speed difference, because the out-of-round fruit on this device are more anxious to get trapped.

The invention is explained in more detail in the following description with reference to a drawing.

In the drawing represents

F i g. 1 shows a cross section through a sorting device with guides,

F i g. 2 shows a cross section through a further form of the sorting device with guides and

F i g. 3 shows a cross section through a further embodiment of the sorting device.

Each of the three sorting devices shown consists of two carriers 1 and 2, between which a sorting gap 3 is formed. The beams 1 and 2 lead in an incision on the horizontal Surface a driven endless chain 6 or 7, sorting device

Applicant:

Jan Antoon de Greef, Tricht (Netherlands)

Representative:

Dipl.-Ing. W. Paap, Dipl.-Ing. H. Mitscherlich

and Dipl.-Ing. K. Gunschmann, patent attorneys,

8000 Munich 22, Steinsdorfstr. 10

Named as inventor:

Jan Antoon de Greef, Tricht (Netherlands)

Claimed priority:

Netherlands of July 21, 1966 (6610 267)

on which an endless belt 8 or 9 is attached. Only the upper run is of the chains and ribbons shown. The carriers 1 and 2 point downwardly converging on the side facing the sorting gap 3 Bevels 4 or 5.

In the sorting device of FIG. 1 are the slopes 4 and 5 in the direction of transport Fruits, thus diverging perpendicular to the drawing sheet in the lower area of the gap and continuously cut off more strongly, so that the gap width increases in this direction. This is through dashed lines indicated. In this way, the small fruits fall close to the feed end and the other fruits, depending on their size, always further away from the feed end through the gap in the collecting container.

In the sorting device of FIG. 2 are the bevels 4 and 5 in the direction of the sorting gap in divided into a number of sections. These sections are pivotable about their top edge and are below set at a certain angle. Seen in the direction of movement of the belts 8 and 9, it takes the angle enclosed by the walls 4 and 5 with the vertical.

From the sorting device according to FIG. 3, the slope 5 can be moved laterally. Maybe both are Slopes 4 and 5 adjustable. Again, the distance between the slopes 4 and 5 is set in such a way that that the gap width increases in the direction of transport of the fruit.

According to the invention, the bevels 4 and 5 are on their side facing the bands 8 and 9, respectively

809 598/276

a layer of resilient material 10, 11, e.g. B. rubber or foam rubber, covered. the Straps 8 and 9 can consist of a thin layer of flexible plastic. Preferably consist the bands 4 and 5 made of double-sided rubberized linen, which is very flexible and smooth.

The thin bands 8 and 9 can follow the shape of the slopes 4 and 5 exactly, while fruits cannot be jammed, as they become in a threatened pinch position together with the tape press in the rubber-elastic coating. This is particularly important in a sorting device, the belts 8 and 9 of which are driven at different speeds.

Claims (1)

Claim: Sorting device for arable or horticultural products according to their size with two sorting slits forming, transversely to the direction of movement enclosing an angle and in the direction of movement driven endless belts diverging into a widening gap, which are guided over fixed bevels on the side facing away from the sorting gap, thereby characterized in that at least one of the slopes (4 or 5) on the endless belts (8 or 9) facing side coated with a soft, rubber-elastic material (10 or 11) is. 1 sheet of drawings, 809 598/276 8.68 © Bundesdruckerei Berlin