DE906552C - Fleece guide - Google Patents

Description

The invention relates to a web guide for compacting the web leaving a drafting system into a sliver.

It is known to use a sheet with two of a flat bottom as a web guide on drafting systems to be used from turned up margins. However, this has the disadvantage that the two Side edges of the essentially triangular guide plate migrating along as well as the

ίο adjacent fibers of the fleece a longer one Have to travel away than the fibers of the center of the fleece, which leads to mutual displacement of the Fibers leads, so their parallel position and thus the uniform nature of the fleece, on its

Edges can even crack, making the tape often rough and compromised becomes wavy. This disadvantage can be somewhat eliminated if the for summarizing the path provided for the fibers of the fleece is lengthened

ao is, but can with the given, often very considerable delivery width of the drafting system the distance between the drafting system and the take-off rollers is not chosen arbitrarily large are in terms of the machine width.

The disadvantage described is relatively simple in the web guide according to the invention eliminated in that the web guide has such a spheroidal bottom surface that on the same all fibers of the fleece up to the union to the band an approximately equally long way have to cover.

This ensures that the fleece delivered by the drafting system has practically no mutual displacement the fibers in the fleece are compressed into a band. At the same time, the fleece guide allows to keep the distance between the drafting system and the take-off rollers relatively short.

The drawing illustrates an embodiment of the subject matter of the invention, namely shows Fig. Ι the fleece guide in a diagrammatic representation and

FIGS. 2 and 3 each show a transverse and longitudinal section along the line H-II and III-III in FIG. 1.

The +5 caused by the distortion of laps or a plurality of strips in a drafting system Fleece, which is not shown for the sake of clarity in the drawing, spreads widely after the rollers ι and 2 of the drafting system on the sheet guide made of sheet metal 3. By the two upturned side edges 4 and 5 of the essentially triangular Fleece guide 3, the fleece is pressed together in its course, around the fleece guide 3 as a band to leave, which rolls through the funnel 6 through the trigger 7 and 8 reached. The bottom of the web guide 3 has a spheroidal shape, as can be seen in particular from the Fig. 2 and 3 results. As a result of the intended curvature of the bottom surface, all the fibers of the Fleece from the drafting system to the exit from the fleece guide 3 or up to the funnel approximately one to cover the same distance, regardless of whether the fibers are in the middle or somewhere to the side of it, e.g. B. on one side edge of the web guide 3 are located. It will therefore be the unwanted mutual displacement of the fibers in the fleece avoided.

In the embodiment described, the bottom surface of the web guide is curved upwards; however, instead of this, it can optionally be bulged at the bottom.

Claims (3)

PATENT CLAIMS: ι. Fleece guide for compacting a drafting system leaving fleece to form a sliver, characterized in that the fleece guide (3) has such a spheroidal bottom surface that on the same all fibers of the fleece to to unite to the band have to cover a distance of almost the same length. 2. Fleece guide according to claim 1, characterized in that that the bottom surface is curved upwards. 3. Fleece guide according to claim 1, characterized in that that the bottom surface is bulged downwards.