DE440139C - Scraper fitting for carding rollers - Google Patents

Description

Scraper fitting for carding rollers. So far all scratch fittings set in such a way that the density corresponding to the wire number over the whole The width and length of the tape or sheet was retained. In more recent times it has one tries to change the density of the covering in certain spaces.

The present invention relates to a new type of setting for cat fittings, consisting in the fact that with bands about half of the bandwidth, so assumed with a 60 mm wide band 34 mm, for example with wire no. 18 in the corresponding Density is occupied, while the other half of the bandwidth (26mm) z. B. with wire No. 22 is occupied in the same stitch No. 22. This arrangement goes through naturally the whole length of the tape.

The purpose of this new arrangement is that after it has been drawn up as a result of the curvature of the spiral tape on the scraper roller, which is known to follow each scope has a range, the different densities of work performance or come to intervene in the fiber material. This makes a much better one Kardage achieves, and also the different density and wire thickness gives one greater scope for processing the various materials without the lining therefore needs to be changed.

Fig. I of the accompanying drawing shows the side view of such a device Fabric-felt-scratching tape, 'Fig. 2 the top view of the work surface, which shows how each half of the bandwidth is set differently, Figure 3 shows a cross-section.

Fig.4 shows the back of the tape and also clarifies the different wire thickness and density. At the turn of misted with such scratches Rollers, e.g. B. Tambours and "workers" come as a result of the helical laying on the circumference of these rollers every moment other groups of teeth to enter, So, so to speak, they are constantly changing their work process; thereby the carding effect naturally significantly increased. .

Of course, the innovation does not exclude that both belt halves widthwise either with wire of the same thickness, but in different densities can be set, as well as in the same density, but in different wire sizes. The option also remains open, at most in three or more of the bandwidth different column. with different wire numbers and densities to set what the effect would possibly improve.

The production of the bands according to this type of setting is naturally more difficult than with the simple tapes, but the production can be facilitated by this, that one, two or three narrow bands are set individually (in different Wire and stitch) and then by gluing a so-called back cover be connected to each other in their parallel position to form a tape, which is then in is raised in the usual way. If the gluing is to be avoided, so can the individual tapes can be pulled onto the roller at the same time without them, In this case, however, they must be kept under the same tension and very close to one another connect.

The present innovation is the most varied for all cat hardware Types of spinning, i.e. for both cotton spinning and worsted yarn, 'carded yarn etc., can also be used for rough slips.

In the case of discharge sheets, the discharge work is performed by applying them new setting method much easier.

Claims (2)

PATENT CLAIMS: i. Scraper fitting for carding rollers, characterized in that that of the tapes drawn up in a known manner next to one another in the direction of rotation Strips with dense and less dense needle trimmings or with different wire sizes Alternate trimmings. 2. Scratch fitting according to claim i, characterized in that the width of the scratching tape is made up of alternating continuous strips of thick and less dense trimmings or with needles made of strong and weak wire.